Transmit power adjustment for synchronization signal block (SSB)

This disclosure provides systems, methods and apparatuses for transmission of synchronization signal blocks (SSBs) using adjusted transmit powers. In one aspect, a power offset may be configured for one or more sets of SSBs. The power offset may be configured to be applied for a set of SSBs based on a duplexing mode of one or more of a transmitter wireless node (that transmits an SSB) or a receiver wireless node (that receives the SSB). The duplexing mode may be based on whether the transmitter receiver node or the wireless receiver node is operating in a full-duplex mode or may be based on a resource configuration associated with a resource used to transmit the SSB. Some techniques and apparatuses described herein also provide signaling to support the transmission of SSBs using adjusted transmit powers, and techniques for receiving and processing SSBs that use adjusted transmit powers.

TECHNICAL FIELD

Aspects of the present disclosure relate generally to wireless communication and to techniques for transmit power adjustment for a synchronization signal block (SSB).

DESCRIPTION OF THE RELATED TECHNOLOGY

These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate on a municipal, national, regional, or global level. New Radio (NR), which also may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP. NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency-division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

SUMMARY

One innovative aspect of the subject matter described in this disclosure can be implemented in a method of wireless communication performed by an apparatus of a wireless node. The method may include transmitting, in a first duplexing mode, a first synchronization signal block (SSB) with a first transmit power configuration that is associated with the first duplexing mode, the first transmit power configuration being configured for a set of first SSBs including the first SSB and associated with the first duplexing mode. The method may include transmitting, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode, the second transmit power configuration being configured for a set of second SSBs including the second SSB and associated with the second duplexing mode.

In some implementations, the method can include transmitting information indicating a power offset for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the power offset.

In some implementations, the first duplexing mode is at least one of: a half-duplex (HD) mode at the wireless node, a full-duplex (FD) mode at the wireless node, an FD mode at a receiver wireless node, an HD mode at a receiver wireless node, or an integrated access and backhaul (IAB) mode, where a resource for the first SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the set of first SSBs are indicated using a bitmap. In some implementations, the set of first SSBs are indicated using a set of SSB indices.

In some implementations, the first SSB is transmitted with the first transmit power configuration based on the first SSB being transmitted on a resource that overlaps with a configured communication resource.

Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus of a wireless node for wireless communication. The apparatus may include one or more interfaces configured to output, in a first duplexing mode, a first SSB with a first transmit power configuration that is associated with the first duplexing mode, the first transmit power configuration being configured for a set of first SSBs including the first SSB and associated with the first duplexing mode. The one or more interfaces may be configured to output, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode, the second transmit power configuration being configured for a set of second SSBs including the second SSB and associated with the second duplexing mode.

In some implementations, the one or more interfaces are configured to transmit information indicating a power offset for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the power offset.

In some implementations, the first duplexing mode is at least one of: an HD mode at the wireless node, an FD mode at the wireless node, an FD mode at a receiver wireless node, an HD mode at a receiver wireless node, or an IAB mode, where a resource for the first SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the set of first SSBs are indicated using a bitmap. In some implementations, the set of first SSBs are indicated using a set of SSB indices.

In some implementations, the first SSB is transmitted with the first transmit power configuration based on the first SSB being transmitted on a resource that overlaps with a configured communication resource.

Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a wireless node, may cause the one or more processors to transmit, in a first duplexing mode, a first SSB with a first transmit power configuration that is associated with the first duplexing mode, the first transmit power configuration being configured for a set of first SSBs including the first SSB and associated with the first duplexing mode. The one or more instructions, when executed by one or more processors of the wireless node, may cause the one or more processors to transmit, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode, the second transmit power configuration being configured for a set of second SSBs including the second SSB and associated with the second duplexing mode.

In some implementations, the one or more instructions, when executed by one or more processors of the wireless node, may cause the one or more processors to transmit information indicating a power offset for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the power offset.

In some implementations, the first duplexing mode is at least one of: an HD mode at the wireless node, an FD mode at the wireless node, an FD mode at a receiver wireless node, an HD mode at a receiver wireless node, or an IAB mode, where a resource for the first SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the set of first SSBs are indicated using a bitmap. In some implementations, the set of first SSBs are indicated using a set of SSB indices.

In some implementations, the first SSB is transmitted with the first transmit power configuration based on the first SSB being transmitted on a resource that overlaps with a configured communication resource.

Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus for wireless communication. The apparatus may include means for transmitting, in a first duplexing mode, a first SSB with a first transmit power configuration that is associated with the first duplexing mode, the first transmit power configuration being configured for a set of first SSBs including the first SSB and associated with the first duplexing mode. The apparatus may include means for transmitting, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode, the second transmit power configuration being configured for a set of second SSBs including the second SSB and associated with the second duplexing mode.

In some implementations, the apparatus may include means for transmitting information indicating a power offset for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the power offset.

In some implementations, the first duplexing mode is at least one of: an HD mode at the wireless node, an FD mode at the wireless node, an FD mode at a receiver wireless node, an HD mode at a receiver wireless node, or an IAB mode, where a resource for the first SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the set of first SSBs are indicated using a bitmap. In some implementations, the set of first SSBs are indicated using a set of SSB indices.

In some implementations, the first SSB is transmitted with the first transmit power configuration based on the first SSB being transmitted on a resource that overlaps with a configured communication resource.

Another innovative aspect of the subject matter described in this disclosure can be implemented in a method of wireless communication performed by an apparatus of a wireless node. The method may include obtaining an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode, and a second transmit power configuration for a set of second SSBs associated with a second duplexing mode. The method may include receiving an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB, where the selected transmit power configuration is the first transmit power configuration if the selected duplexing mode is the first duplexing mode and the selected transmit power configuration is the second transmit power configuration if the selected duplexing mode is the second duplexing mode.

In some implementations, the method can include receiving information indicating a power offset for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, where the selected transmit power configuration is based on the power offset.

In some implementations, the selected duplexing mode is at least one of: an HD mode at a transmitter wireless node from which the SSB is received, an FD mode at the transmitter wireless node, an FD mode at the wireless node, an HD mode at the wireless node, or an IAB mode, where a resource for the SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the SSB is received using the selected transmit power configuration based on the SSB being received on a resource that overlaps with a configured communication resource.

In some implementations, the method can include performing measurement or reporting regarding the SSB.

Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus of a wireless node for wireless communication. The apparatus may include one or more interfaces configured to obtain an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode, and a second transmit power configuration for a set of second SSBs associated with a second duplexing mode. The one or more interfaces may be configured to obtain an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB, where the selected transmit power configuration is the first transmit power configuration if the selected duplexing mode is the first duplexing mode and the selected transmit power configuration is the second transmit power configuration if the selected duplexing mode is the second duplexing mode.

In some implementations, the one or more interfaces are configured to obtain information indicating a power offset for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, where the selected transmit power configuration is based on the power offset.

In some implementations, the selected duplexing mode is at least one of: an HD mode at a transmitter wireless node from which the SSB is received, an FD mode at the transmitter wireless node, an FD mode at the wireless node, an HD mode at the wireless node, or an IAB mode, where a resource for the SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the SSB is received using the selected transmit power configuration based on the SSB being received on a resource that overlaps with a configured communication resource.

In some implementations, the apparatus may include a processing system configured to perform measurement or reporting regarding the SSB.

Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a wireless node, may cause the one or more processors to obtain an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode, and a second transmit power configuration for a set of second SSBs associated with a second duplexing mode. The one or more instructions, when executed by one or more processors of the wireless node, may cause the one or more processors to receive an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB, where the selected transmit power configuration is the first transmit power configuration if the selected duplexing mode is the first duplexing mode and the selected transmit power configuration is the second transmit power configuration if the selected duplexing mode is the second duplexing mode.

In some implementations, the one or more instructions, when executed by one or more processors of the wireless node, may cause the one or more processors to receive information indicating a power offset for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, where the selected transmit power configuration is based on the power offset.

In some implementations, the selected duplexing mode is at least one of: an HD mode at a transmitter wireless node from which the SSB is received, an FD mode at the transmitter wireless node, an FD mode at the wireless node, an HD mode at the wireless node, or an IAB mode, where a resource for the SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the SSB is received using the selected transmit power configuration based on the SSB being received on a resource that overlaps with a configured communication resource.

In some implementations, the one or more instructions, when executed by one or more processors of the wireless node, may cause the one or more processors to perform measurement or reporting regarding the SSB.

Another innovative aspect of the subject matter described in this disclosure can be implemented in an apparatus for wireless communication. The apparatus may include means for obtaining an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode, and a second transmit power configuration for a set of second SSBs associated with a second duplexing mode. The apparatus may include means for receiving an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB, where the selected transmit power configuration is the first transmit power configuration if the selected duplexing mode is the first duplexing mode and the selected transmit power configuration is the second transmit power configuration if the selected duplexing mode is the second duplexing mode.

In some implementations, the apparatus may include means for receiving information indicating a power offset for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, where the selected transmit power configuration is based on the power offset.

In some implementations, the selected duplexing mode is at least one of: an HD mode at a transmitter wireless node from which the SSB is received, an FD mode at the transmitter wireless node, an FD mode at the wireless node, an HD mode at the wireless node, or an IAB mode, where a resource for the SSB overlaps with a resource for communication with a mobile termination.

In some implementations, the SSB is received using the selected transmit power configuration based on the SSB being received on a resource that overlaps with a configured communication resource.

In some implementations, the apparatus may include means for performing measurement or reporting regarding the SSB.

DETAILED DESCRIPTION

A wireless network may use full-duplex (FD) communication to increase throughput and improve utilization of communication resources. FD communication involves the performance of two or more communications using the same resources. FD communication can be contrasted with half-duplex (HD) communication, in which only one communication is performed on a time and frequency resource. Examples of FD communication include transmission and reception on the same time and frequency resources, as well as transmitting two or more communications on the same time and frequency resources (sometimes referred to as spatial division multiplexing transmission (SDM-TX) or enhanced duplexing). FD communication may involve certain challenges, such as self-interference between a transmission and a concurrent reception, increased power usage which may violate a total transmit power limit of a wireless node, and increased signal to interference plus noise ratio (SINR) requirements at an FD receiver wireless node.

A synchronization signal block (SSB) may be used to perform various tasks in a wireless network, such as synchronization, radio resource management (RRM), radio link control (RLC), beam management, and so on. Generally, a group of SSBs (such as a synchronization signal burst set (SS burst set) or a set of SSBs transmitted by a transmitter wireless node) may be transmitted at a constant power relative to each other. However, in wireless networks utilizing FD communications, a uniform approach to SSB transmit power (where all SSBs are transmitted at the same transmit power) may lead to suboptimal performance. As just one example, a transmit power sufficient to enable reception at an FD-capable receiver wireless node may not be suitable for an FD-capable transmitter wireless node, since this transmit power may cause significant self-interference at an FD-capable transmitter wireless node or may exceed the total transmit power limit of the FD-capable transmitter wireless node.

Some techniques and apparatuses described herein enable transmission of SSBs using adjusted transmit powers. For example, some techniques and apparatuses described herein enable the application of a power offset for one or more sets of SSBs. The power offset may be configured to be applied for a set of SSBs based on a duplexing mode of one or more of a transmitter wireless node (that transmits an SSB) or a receiver wireless node (that receives the SSB). The duplexing mode may be based on whether the transmitter receiver node or the wireless receiver node is operating in an FD mode, or may be based on a resource configuration associated with a resource used to transmit the SSB. Some techniques and apparatuses described herein also provide signaling to support the transmission of SSBs using adjusted transmit powers, and techniques for receiving and processing SSBs that use adjusted transmit powers.

Particular implementations of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. By transmitting SSBs with different transmit powers, self-interference at a transmitter wireless node may be reduced, and the total transmit power limit of the transmitter wireless node may be more consistently satisfied, thereby increasing throughput and improving utilization of wireless communication resources. Furthermore, an acceptable SINR may be achieved at an FD-capable receiver wireless node, thereby increasing throughput and reducing the occurrence of failed SSB reception. Still further, interference at a node other than the transmitter node may be reduced by adjusting the transmit power of SSBs.

The wireless network100may include one or more relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (for example, a base station110or a UE120) and send a transmission of the data to a downstream station (for example, a UE120or a base station110). A relay station may be a UE120that can relay transmissions for other UEs120. In the example shown inFIG.1, the BS110d(for example, a relay base station) may communicate with the BS110a(for example, a macro base station) and the UE120din order to facilitate communication between the BS110aand the UE120d. A base station110that relays communications may be referred to as a relay station, a relay base station, or a relay.

The wireless network100may be a heterogeneous network that includes base stations110of different types, such as macro base stations, pico base stations, femto base stations, or relay base stations. These different types of base stations110may have different transmit power levels, different coverage areas, or different impacts on interference in the wireless network100. For example, macro base stations may have a high transmit power level (for example, 5 to 40 watts) whereas pico base stations, femto base stations, and relay base stations may have lower transmit power levels (for example, 0.1 to 2 watts).

A network controller130may couple to or communicate with a set of base stations110and may provide coordination and control for these base stations110. The network controller130may communicate with the base stations110via a backhaul communication link. The base stations110may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link. In some aspects, a base station110(such as a gNB) or a network controller130may be referred to herein as a control node.

The UEs120may be dispersed throughout the wireless network100, and each UE120may be stationary or mobile. A UE120may include, for example, an access terminal, a terminal, a mobile station, or a subscriber unit. A UE120may be a cellular phone (for example, a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (for example, a smart ring or a smart bracelet)), an entertainment device (for example, a music device, a video device, or a satellite radio), a vehicular component or sensor, a smart meter/sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.

Some UEs120may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. An MTC UE or an eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, or a location tag, that may communicate with a base station, another device (for example, a remote device), or some other entity. Some UEs120may be considered Internet-of-Things (IoT) devices, or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs120may be considered a Customer Premises Equipment. A UE120may be included inside a housing that houses components of the UE120, such as processor components or memory components. In some examples, the processor components and the memory components may be coupled together. For example, the processor components (for example, one or more processors) and the memory components (for example, a memory) may be operatively coupled, communicatively coupled, electronically coupled, or electrically coupled.

In general, any number of wireless networks100may be deployed in a given geographic area. Each wireless network100may support a particular RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology or an air interface. A frequency may be referred to as a carrier or a frequency channel. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

In some examples, two or more UEs120(for example, shown as UE120aand UE120e) may communicate directly using one or more sidelink channels (for example, without using a base station110as an intermediary to communicate with one another). For example, the UEs120may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (for example, which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), or a mesh network. In such examples, a UE120may perform scheduling operations, resource selection operations, or other operations described elsewhere herein as being performed by the base station110.

In some aspects, a transmitter wireless node, such as the UE120or the base station110or one or more other nodes described herein, may include a communication manager140. As described in more detail elsewhere herein, the communication manager140may transmit, in a first duplexing mode, a first SSB with a first transmit power configuration that is associated with the first duplexing mode; and transmit, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode. Additionally, or alternatively, the communication manager140may perform one or more other operations described herein.

In some aspects, a receiver wireless node, such as the UE120or the base station110or one or more other nodes described herein, may include a communication manager150. As described in more detail elsewhere herein, the communication manager150may receive an SSB using a transmit power configuration that is associated with a duplexing mode of the SSB; and perform measurement or reporting regarding the SSB. Additionally, or alternatively, the communication manager150may perform one or more other operations described herein.

At the base station110, a transmit processor220may receive data, from a data source212, intended for the UE120(or a set of UEs120). The transmit processor220may select one or more modulation and coding schemes (MCSs) for the UE120using one or more channel quality indicators (CQIs) received from that UE120. The UE120may process (for example, encode and modulate) the data for the UE120using the MCS(s) selected for the UE120and may provide data symbols for the UE120. The transmit processor220may process system information (for example, for semi-static resource partitioning information (SRPI)) and control information (for example, CQI requests, grants, or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor220may generate reference symbols for reference signals (for example, a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (for example, a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor230may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, T output symbol streams) to a corresponding set of modems232(for example, T modems), shown as modems232athrough232t. For example, each output symbol stream may be provided to a modulator component (shown as MOD) of a modem232. Each modem232may use a respective modulator component to process a respective output symbol stream (for example, for OFDM) to obtain an output sample stream. Each modem232may further use a respective modulator component to process (for example, convert to analog, amplify, filter, or upconvert) the output sample stream to obtain a downlink signal. The modems232athrough232tmay transmit a set of downlink signals (for example, T downlink signals) via a corresponding set of antennas234(for example, T antennas), shown as antennas234athrough234t.

At the UE120, a set of antennas252(shown as antennas252athrough252r) may receive the downlink signals from the base station110or other base stations110and may provide a set of received signals (for example, R received signals) to a set of modems254(for example, R modems), shown as modems254athrough254r. For example, each received signal may be provided to a demodulator component (shown as DEMOD) of a modem254. Each modem254may use a respective demodulator component to condition (for example, filter, amplify, downconvert, or digitize) a received signal to obtain input samples. Each modem254may use a demodulator component to further process the input samples (for example, for OFDM) to obtain received symbols. A MIMO detector256may obtain received symbols from the modems254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. A receive processor258may process (for example, demodulate and decode) the detected symbols, may provide decoded data for the UE120to a data sink260, and may provide decoded control information and system information to a controller/processor280. The term “controller/processor” may refer to one or more controllers, one or more processors, or a combination thereof. A channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, or a CQI parameter, among other examples. In some examples, one or more components of the UE120may be included in a housing.

One or more antennas (for example, antennas234athrough234tor antennas252athrough252r) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled to one or more transmission or reception components, such as one or more components ofFIG.2.

On the uplink, at the UE120, a transmit processor264may receive and process data from a data source262and control information (for example, for reports that include RSRP, RSSI, RSRQ, or CQI) from the controller/processor280. The transmit processor264may generate reference symbols for one or more reference signals. The symbols from the transmit processor264may be precoded by a TX MIMO processor266if applicable, further processed by the modems254(for example, for DFT-s-OFDM or CP-OFDM), and transmitted to the base station110. In some examples, the modem254of the UE120may include a modulator and a demodulator. In some examples, the UE120includes a transceiver. The transceiver may include any combination of the antenna(s)252, the modem(s)254, the MIMO detector256, the receive processor258, the transmit processor264, or the TX MIMO processor266. The transceiver may be used by a processor (for example, the controller/processor280) and the memory282to perform aspects of any of the processes described herein.

In some implementations, the controller/processor280may be a component of a processing system. A processing system may generally refer to a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the UE120). For example, a processing system of the UE120may refer to a system including the various other components or subcomponents of the UE120.

The processing system of the UE120may interface with other components of the UE120, and may process information received from other components (such as inputs or signals), output information to other components, etc. For example, a chip or modem of the UE120may include a processing system and one or more interfaces, such as a first interface to receive or obtain information, and a second interface to output, transmit or provide information. In some cases, the first interface may refer to an interface between the processing system of the chip or modem and a receiver, such that the UE120may receive information or signal inputs, and the information may be passed to the processing system. In some cases, the second interface may refer to an interface between the processing system of the chip or modem and a transmitter, such that the UE120may transmit information output from the chip or modem. A person having ordinary skill in the art will readily recognize that the second interface also may obtain or receive information or signal inputs, and the first interface also may output, transmit or provide information.

In some implementations, the controller/processor240may be a component of a processing system. A processing system may generally refer to a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the base station110). For example, a processing system of the base station110may refer to a system including the various other components or subcomponents of the base station110.

The processing system of the base station110may interface with other components of the base station110, and may process information received from other components (such as inputs or signals), output information to other components, etc. For example, a chip or modem of the base station110may include a processing system and one or more interfaces, such as a first interface to receive, obtain, or select information, and a second interface to output, transmit or provide information. In some cases, the first interface may refer to an interface between the processing system of the chip or modem and a receiver, such that the base station110may receive information or signal inputs, and the information may be passed to the processing system. In some cases, the second interface may refer to an interface between the processing system of the chip or modem and a transmitter, such that the base station110may transmit information output from the chip or modem. A person having ordinary skill in the art will readily recognize that the second interface also may obtain or receive information or signal inputs, and the first interface also may output, transmit or provide information.

The controller/processor240of the base station110, the controller/processor280of the UE120, or any other component(s) ofFIG.2may perform one or more techniques associated with transmit power adjustment for an SSB, as described in more detail elsewhere herein. For example, the controller/processor240of the base station110, the controller/processor280of the UE120, or any other component(s) (or combinations of components) ofFIG.2may perform or direct operations of, for example, process1000ofFIG.10, process1100ofFIG.11, or other processes as described herein. The memory242and the memory282may store data and program codes for the base station110and the UE120, respectively. In some examples, the memory242and the memory282may include a non-transitory computer-readable medium storing one or more instructions (for example, code or program code) for wireless communication. For example, the one or more instructions, when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the base station110or the UE120, may cause the one or more processors, the UE120, or the base station110to perform or direct operations of, for example, process1000ofFIG.10, process1100ofFIG.11, or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, or interpreting the instructions.

While blocks inFIG.2are illustrated as distinct components, the functions described with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components. For example, the functions described with respect to the transmit processor264, the receive processor258, the TX MIMO processor266, or another processor may be performed by or under the control of the controller/processor280.

FIG.3is a diagram300illustrating examples of radio access networks (RANs). As shown by reference number305, a traditional radio access network (RAN), such as 3G, 4G, LTE, 5G and so on, may include multiple base stations310(shown as access nodes (AN)), where each base station310communicates with a core network via a wired backhaul link315, such as a fiber connection. A base station310may communicate with a UE320via an access link325, which may be a wireless link. In some aspects, a base station310shown inFIG.3may be a base station110shown inFIG.1. In some aspects, a UE320shown inFIG.3may be a UE120shown inFIG.1.

As shown by reference number330, a radio access network (RAN) may include a wireless backhaul network, sometimes referred to as an integrated access and backhaul (IAB) network. In an IAB network, at least one base station is an anchor base station335that communicates with a core network via a wired backhaul link340, such as a fiber connection. An anchor base station335may also be referred to as an IAB donor (or IAB-donor). The IAB network may include one or more non-anchor base stations345, sometimes referred to as relay base stations or IAB nodes (or IAB-nodes). The non-anchor base station345may communicate directly or indirectly with the anchor base station335via one or more backhaul links350(such as via one or more non-anchor base stations345) to form a backhaul path to the core network for carrying backhaul traffic. Backhaul link350may be a wireless link. Anchor base station(s)335and non-anchor base station(s)345may communicate with one or more UEs355via access links360, which may be wireless links for carrying access traffic. In some aspects, an anchor base station335or a non-anchor base station345shown inFIG.3may be a base station110shown inFIG.1. In some aspects, a UE355shown inFIG.3may be a UE120shown inFIG.1.

As shown by reference number365, in some aspects, a radio access network that includes an IAB network may utilize millimeter wave technology or directional communications (such as beamforming) for communications between base stations and UEs (that is, between two base stations, between two UEs, or between a base station and a UE). For example, wireless backhaul links370between base stations may use millimeter wave (mmWave) signals to carry information, and may be directed toward a target base station using beamforming. Similarly, the wireless access links375between a UE and a base station may use millimeter wave signals and may be directed toward a target wireless node (such as a UE or a base station) using beamforming. In this way, inter-link interference may be reduced.

Some techniques described herein enable transmission of an SSB using a transmit power configuration that is associated with a duplexing mode of a transmitter wireless node or a receiver wireless node of the SSB. For example, some IAB networks may use FD communication to increase throughput and improve resource utilization. FD communication presents certain challenges, such as self-interference, adherence to transmit power limits during transmission, and maintaining an acceptable SINR at a receiver wireless node operating in an FD mode. By configuring SSBs with different transmit power configurations associated with different duplexing modes, FD communication performance of a transmitter wireless node (such as an anchor base station335or a non-anchor base station345) and a receiver wireless node (such as a non-anchor base station or a UE355) may be improved.

The configuration of base stations and UEs inFIG.3is shown as an example, and other examples are contemplated. For example, one or more base stations illustrated inFIG.3may be replaced by one or more UEs that communicate via a UE-to-UE access network (such as a peer-to-peer network or a device-to-device network). In this case, “anchor node” may refer to a UE that is directly in communication with a base station (such as an anchor base station or a non-anchor base station).

FIG.4is a diagram400illustrating an example of an IAB network architecture. As shown inFIG.4, an IAB network may include an IAB donor405(shown as IAB-donor) that connects to a core network via a wired connection (shown as a wireline backhaul). For example, an Ng interface of an IAB donor405may terminate at a core network. Additionally, or alternatively, an IAB donor405may connect to one or more devices of the core network that provide a core access and mobility management function (AMF). In some aspects, an IAB donor405may include a base station110, such as an anchor base station, as described in connection withFIG.3. As shown, an IAB donor405may include a central unit (CU) (also referred to herein as a central node), which may perform access node controller (ANC) functions and AMF functions. The CU may configure one or more distributed units (DU)s of the IAB donor405and may configure one or more IAB nodes410(such as an mobile termination (MT) unit or a DU of an IAB node410) that connect to the core network via the IAB donor405. In some aspects, the CU may handle configuration of sets of SSBs with different transmit power configurations, resource configurations for a DU or an MT, or other configurations described herein. Thus, a CU of an IAB donor405may control and configure the entire IAB network that connects to the core network via the IAB donor405, such as by using control messages and configuration messages (such as a radio resource control (RRC) configuration message or an F1 application protocol (FLAP) message). In some aspects, the one or more DUs may include an open RAN (O-RAN) DU and an O-RAN radio unit (RU), as described herein. In some aspects, the CU may be referred to herein as a control node.

In some aspects, the IAB network architecture may support O-RAN operability. O-RAN provides for disaggregation of hardware and software, as well as interfacing between hardware and software. In some aspects, O-RAN may use an architecture with a CU (such as a CU of IAB donor405), one or more DUs (which may be termed an O-RAN DU or O-DU), and one or more RUs (which may be termed an O-RAN RU or O-RU). The RU may perform digital front end functions, some physical layer functions, digital beamforming, and so on. The DU may handle RLC, medium access control (MAC), and some physical (PHY) layer functions. The CU may handle certain gNB functions, such as transfer of user data, mobility control, RAN sharing, positioning, session management, and so on. The CU may control the operation of one or more DUs, and the one or more DUs may control the operation of one or more RUs.

In some aspects, the CU may host one or more higher layer control functions. Such control functions can include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), or the like. Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU. The CU may be configured to handle user plane functionality (i.e., Central Unit-User Plane (CU-UP)), control plane functionality (i.e., Central Unit-Control Plane (CU-CP)), or a combination thereof. In some implementations, the CU can be logically split into one or more CU-UP units and one or more CU-CP units. The CU can be implemented to communicate with the DU, as necessary, for network control and signaling.

The DU may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs. In some aspects, the DU may host one or more of an RLC layer, a MAC layer, and one or more high PHY layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, or the like) depending, at least in part, on a lower layer functional split. Each layer (or module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU, or with the control functions hosted by the CU.

Lower-level functionality can be implemented by one or more RUs. In some deployments, an RU, controlled by a DU, may correspond to a logical node that hosts radio frequency processing functions, or low-PHY layer functions (such as performing fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like), or both, based on the lower layer functional split. In such an architecture, the RU(s) can be implemented to handle over the air (OTA) communication with a UE120. In some implementations, real-time and non-real-time aspects of control and user plane communication with the RU(s) can be controlled by the corresponding DU. In some scenarios, this configuration can enable the DU(s) and the CU to be implemented in a cloud-based RAN architecture, such as a virtual RAN (VRAN) architecture.

As further shown inFIG.4, the JAB network may include JAB nodes410(shown as IAB-node 1, IAB-node 2, and IAB-node 3) that connect to the core network via the IAB donor405. As shown, an JAB node410may include MT functions (also sometimes referred to as UE functions (UEF)) and may include DU functions (also sometimes referred to as access node functions (ANF)). The MT functions of an JAB node410(referred to as a child node) may be controlled and scheduled by another JAB node410(referred to as a parent node of the child node) or by an IAB donor405. The DU functions of an JAB node410(a parent node) may control and schedule other JAB nodes410(child nodes of the parent node) and UEs120. Thus, a DU may be referred to as a scheduling node or a scheduling component, and an MT may be referred to as a scheduled node or a scheduled component. In some aspects, an IAB donor405may include DU functions and not MT functions. That is, an IAB donor405may configure, control, and schedule communications of IAB nodes410and UEs120. A UE120may include only MT functions, and not DU functions. That is, communications of a UE120may be controlled and scheduled by an IAB donor405or an JAB node410(such as a parent node of the UE120).

When a first node controls and schedules communications for a second node (such as when the first node provides DU functions for the second node's MT functions), the first node may be referred to as a parent node of the second node, and the second node may be referred to as a child node of the first node. A child node of the second node may be referred to as a grandchild node of the first node. Thus, a DU function of a parent node may control and schedule communications for child nodes of the parent node. A parent node may be an IAB donor405or an JAB node410, and a child node may be an JAB node410or a UE120. Communications of an MT function of a child node may be controlled and scheduled by a parent node of the child node.

As further shown inFIG.4, a link between a UE120(which only has MT functions, and not DU functions) and an IAB donor405, or between a UE120and an JAB node410, may be referred to as an access link415. Access link415may be a wireless access link that provides a UE120with radio access to a core network via an IAB donor405, and optionally via one or more IAB nodes410. Thus, the network illustrated in 4 may be referred to as a multi-hop network or a wireless multi-hop network.

As further shown inFIG.4, a link between an IAB donor405and an IAB node410or between two IAB nodes410may be referred to as a backhaul link420. Backhaul link420may be a wireless backhaul link that provides an IAB node410with radio access to a core network via an IAB donor405, and optionally via one or more other IAB nodes410. In an IAB network, network resources for wireless communications (such as time resources, frequency resources, and spatial resources) may be shared between access links415and backhaul links420. In some aspects, a backhaul link420may be a primary backhaul link or a secondary backhaul link (also referred to as a backup backhaul link). In some aspects, a secondary backhaul link may be used if a primary backhaul link fails, becomes congested, or becomes overloaded. For example, a backup link between IAB-node 2 and IAB-node 3 may be used for backhaul communications if a primary backhaul link between IAB-node 2 and IAB-node 1 fails. As used herein, “node” or “wireless node” may refer to an IAB donor405or an IAB node410, among other examples described elsewhere herein.

In some aspects, an IAB node410(a parent node) may be unable to communicate with another IAB node410(a child node) using a direct access link. For example, IAB-node 2 may be outside of a communication range of IAB-node 1 or the direct access link between IAB-node 1 and IAB-node 2 may be blocked. IAB-node 1 may utilize a remote unit (RU) node425(such as a relay node or a repeater node) to communicate with IAB-node 2. The IAB-node 1 (that is, the DU of IAB-node 1) may communicate with the RU node425using a fronthaul link430. For example, the IAB-node 1 may transmit a communication to the RU node425using the fronthaul link430. The RU node425may forward the communication to the IAB-node 2 using an access link415between the IAB-node 2 and the RU node425. In this way, the IAB-node 1 may extend coverage of the IAB-node 1 and communicate with the IAB-node 2 when the IAB-node 1 is unable to use a direct access link between IAB-node 1 and IAB-node 2 for direct communications. Some techniques described herein enable configuration and transmission of SSBs using different transmit power configurations, such as to improve performance and facilitate successful communication in different duplexing modes.

FIG.5is a diagram500illustrating an example of a synchronization signal (SS) hierarchy. As shown inFIG.5, the SS hierarchy may include an SS burst set505, which may include multiple SS bursts510, shown as SS burst 0 through SS burst N−1, where N is a maximum number of repetitions of the SS burst510that may be transmitted by the base station. As further shown, each SS burst510may include one or more SSBs515, shown as SSB 0 through SSB M−1, where M is a maximum number of SSBs515that can be carried by an SS burst510. In some aspects, different SSBs515may be beam-formed differently (for example, transmitted using different beams), and may be used for cell search, cell acquisition, beam management, beam selection (such as part of an initial network access procedure), RRM, radio link monitoring (RLM), or similar operations. A receiver wireless node, such as a UE120, may perform measurement and reporting of SSBs515in association with these operations. An SS burst set505may be periodically transmitted by a transmitter wireless node (such as base station110, an IAB node, an IAB donor, a TRP, or a UE in a sidelink network), such as every X milliseconds, as shown inFIG.5. In some aspects, an SS burst set505may have a fixed or dynamic length, shown as Y milliseconds inFIG.5. In some cases, an SS burst set505or an SS burst510may be referred to as a discovery reference signal (DRS) transmission window or an SSB measurement time configuration (SMTC) window. SSBs515can also be used for backhaul discovery, such as using an SSB transmission configuration (STC).

In some aspects, an SSB515may include resources that carry a PSS520, an SSS525, and a physical broadcast channel (PBCH)530. In some aspects, multiple SSBs515are included in an SS burst510(with transmission on different beams), and the PSS520, the SSS525, and the PBCH530may be the same across each SSB515of the SS burst510. In some aspects, a single SSB515may be included in an SS burst510. In some aspects, the SSB515may be at least four symbols (such as OFDM symbols) in length, where each symbol carries one or more of the PSS520(occupying one symbol), the SSS525(occupying one symbol), or the PBCH530(occupying two symbols). In some aspects, an SSB515may be referred to as an SS/PBCH block.

In some aspects, the symbols of an SSB515are consecutive, as shown inFIG.5. In some aspects, the symbols of an SSB515are non-consecutive. Similarly, in some aspects, one or more SSBs515of the SS burst510may be transmitted in consecutive radio resources (such as consecutive symbols) during one or more slots. Additionally, or alternatively, one or more SSBs515of the SS burst510may be transmitted in non-consecutive radio resources.

In some aspects, the SS bursts510may have a burst period, and the SSBs515of the SS burst510may be transmitted by a transmitter wireless node according to the burst period. In this case, the SSBs515may be repeated during each SS burst510. In some aspects, the SS burst set505may have a burst set periodicity, whereby the SS bursts510of the SS burst set505are transmitted by the wireless node according to the fixed burst set periodicity. In other words, the SS bursts510may be repeated during each SS burst set505.

In some aspects, an SSB515may include an SSB index, which may correspond to a beam used to carry the SSB515. A receiver wireless node (such as a UE120, a base station, or an IAB node) may monitor for and measure SSBs515using different receive (Rx) beams during an initial network access procedure or a cell search procedure, among other examples. Based on the monitoring and measuring, the receiver wireless node may indicate one or more SSBs515with a best signal parameter (such as an RSRP parameter, in some examples) to a transmitter wireless node. The transmitter wireless node and the receiver wireless node may use the one or more indicated SSBs515to select one or more beams to be used for communication between the transmitter wireless node and the receiver wireless node (such as for a random access channel (RACH) procedure). Additionally, or alternatively, the receiver wireless node may use the SSB515or the SSB index to determine a cell timing for a cell via which the SSB515is received (for example, a serving cell).

Some SSBs515may be transmitted in a full-duplex mode, whereas other SSBs515may be transmitted in a half-duplex mode. As described elsewhere herein, a full-duplex mode can refer to a transmitter wireless node performing FD communication or to a receiver wireless node performing FD communication. If SSBs are transmitted with the same transmit power, then self-interference may occur at a transmitter wireless node operating in an FD mode. Additionally, the transmission of an SSB in a full-duplex mode may cause the transmitter wireless node to exceed a total transmit power limit since the SSB may be associated with a predetermined transmit power while some amount of the transmitter wireless node's power budget is in use for another transmission. Additionally, if all SSBs are transmitted with the same transmit power, then a receiver wireless node in an FD mode may not receive an SSB at sufficient signal strength (such as with a sufficient SINR) to measure and report the SSB. Techniques described herein enable the transmission of SSBs515using different transmit power configurations, such as different power offsets relative to each other or to a baseline. For example, inFIG.5, as shown by reference number535, a first set of SSBs515(including at least SSB index 0) is transmitted with a first transmit power, corresponding to a first duplexing mode. As shown by reference number540, a second set of SSBs515, including at least SSB index 1, is transmitted with a second transmit power corresponding to a second duplexing mode. Thus, reception signal strength at an FD-mode receiver wireless node may be improved, and self-interference or transmit power limit violation at an FD-mode transmitter wireless node may be reduced.

FIG.6is a diagram600illustrating an example of resource types in an IAB network. In an IAB network, resources (sometimes referred to as time resources) may be configured as downlink-only, uplink-only, flexible, or not available (sometimes referred to as “unavailable”). For example, these resources may include time resources, frequency resources, spatial resources, or a combination thereof. When a resource is configured as downlink-only for a wireless node, that resource may be available for only downlink communications of the wireless node, and not uplink communications. Similarly, when a resource is configured as uplink-only for a wireless node, that resource may be available for only uplink communications of the wireless node, and not downlink communications. When a resource is configured as flexible for a wireless node, that resource may be available for both downlink communications and uplink communications of the wireless node. When a resource is configured as not available for a wireless node, that resource may not be used for any communications of the wireless node. In some cases, a resource can be configured as an FD resource for a wireless node, meaning that that resource is available for FD communication of that wireless node.

Examples of downlink communications include SSBs (such as SSB515depicted and described inFIG.5), channel state information reference signals (CSI-RS), physical downlink control channel (PDCCH) communications, and physical downlink shared channel (PDSCH) communications. Examples of uplink communications include PRACH communications, physical uplink control channel (PUCCH) communications, physical uplink shared channel (PUSCH) communications, and sounding reference signals (SRSs).

Resources in an IAB network that are configured as downlink-only, uplink-only, or flexible may be further configured as hard resources or soft resources. A hard resource is a resource that is always available for communications of a given wireless node. A soft resource is conditionally available for a wireless node based on signaling from a parent node of the wireless node. A given resource is configured as a hard resource or a soft resource from the perspective of a given wireless node. For example, a given resource can be a hard resource for one wireless node (such as a parent node) and a soft resource for another wireless node (such as a child node of the parent node).

When a resource is configured as a hard resource for a wireless node, that resource is always available for communications of the wireless node. For example, a hard downlink-only resource is always available for only downlink communications of the wireless node, a hard uplink-only resource is always available for only uplink communications of the wireless node, and a hard flexible resource is always available for uplink and downlink communications of the wireless node.

When a resource is configured as a soft resource for a wireless node, the availability of that resource is controlled by a parent node of the wireless node. For example, the parent node may indicate (explicitly or implicitly) whether a soft resource is available for communications of the wireless node. Thus, a soft resource may be in one of two states: a schedulable state (when the soft resource is available for scheduling or communications of the wireless node) and a non-schedulable state (when the soft resource is not available for scheduling and is not available for communications of the wireless node).

For example, a soft downlink-only resource is only available for downlink communications of the wireless node when a parent node of the wireless node indicates that the soft downlink-only resource is available. Similarly, a soft uplink-only resource is only available for uplink communications of the wireless node when a parent node of the wireless node indicates that the soft uplink-only resource is available. A soft flexible resource is only available for uplink and downlink communications of the wireless node when a parent node of the wireless node indicates that the soft flexible resource is available.

As an example, and as shown by reference number605, a resource may be configured as hard for a child node and may be configured as not available for a parent node of the child node. In this case, the parent node cannot communicate using that resource, but the child node can schedule communications in that resource or communicate using that resource. This configuration may reduce interference between the parent node and the child node and may reduce scheduling conflicts between the parent node and the child node.

As another example, and as shown by reference number610, a resource may be configured as not available for the child node, and may be configured as hard, soft, or not available for the parent node (depending on a network configuration, network conditions, or a configuration of a parent node of the parent node). In this case, the child node cannot schedule communications in that resource and cannot communicate using that time resource.

As another example, and as shown by reference number615, a resource may be configured as soft for the child node, and may be configured as hard, soft, or not available for the parent node (depending on a network configuration, network conditions, or a configuration of a parent node of the parent node). In this case, the child node cannot schedule or communicate using the resource unless the child node receives an indication (a release indication), from the parent node (explicitly or implicitly), that the resource is available (that is, released) for use by the child node. If the child node receives such an indication, then the child node can schedule communications in that resource or communicate using that resource.

The configuration of resources as hard/soft/unavailable or uplink/downlink/flexible/FD may be referred to herein as a resource configuration (though “resource configuration” can also refer to other types of configurations, as described elsewhere herein). In some cases, a set of SSBs (which may be configured with a transmit power configuration indicating a power offset) may be associated with a set of resources based on a resource configuration of the set of resources. For example, a transmitter wireless node may transmit an SSB using the transmit power configuration if the SSB is to be transmitted on a resource having a resource configuration, or overlapping with a resource having a resource configuration, that is associated with (such as configured with) the transmit power configuration.

FIG.7is a diagram illustrating an example of an FD zone, a non-FD zone, and self-interference associated with FD communications. As shown, example700includes a BS (such as BS110, the base station335or345ofFIG.3, or a transmitter wireless node), a UE1 (such as UE120, an MT of an IAB node, or a receiver wireless node), and a UE2 (such as UE120, an MT of an IAB node, or a receiver wireless node). In some aspects, the BS may be capable of FD communication. FD communication may include a contemporaneous uplink and downlink communication using the same resources. For example, the BS may perform a downlink (DL) transmission to a UE1 (shown by reference number710) and may receive an uplink (UL) transmission from a UE2 (shown by reference number720) using the same frequency resources and at least partially overlapping in time.

In one example, an FD BS may configure or schedule uplink signals (such as RACH signals, a PUCCH, a PUSCH, or a sounding reference signal) on time resources that overlap with an SSB (such as SSB515) to be transmitted by the FD BS. In another example, in an IAB network, a DU's SSBs may overlap, in time, with transmission or reception by a co-located MT.

As shown by reference number730, the DL transmission from the BS may self-interfere with the UL transmission to the BS. This may be caused by a variety of factors, such as the higher transmit power for the DL transmission (as compared to the UL transmission) or radio frequency bleeding. Furthermore, as shown by reference number740, the UL transmission to the BS from the UE2 may interfere with the DL transmission from the BS to the UE1, thereby diminishing DL performance of the UE1.

An FD zone is shown by reference number750and a non-FD zone is shown by reference number760. An “FD zone” may refer to one or more of a time period or a frequency region in which a wireless communication device (such as a BS110, a UE120, a wireless node, or a similar device) performs FD communication, and a “non-FD zone” may refer to one or more of a time period or a frequency region in which a wireless communication device performs non-FD communication. The FD zone may be associated with higher self-interference, and therefore a lower SINR, than the non-FD zone. A base station operating in the FD zone may be referred to herein as operating in an FD mode, and a base station operating in the non-FD zone may be referred to herein as operating in a non-FD mode.

Some receiver wireless nodes can operate in an FD mode, in which the receiver wireless node transmits a communication and receives a communication on the same resources. A receiver wireless node that can operate in an FD mode is referred to as being FD capable. For example, a receiver wireless node may be capable of both FD mode operation (in which the receiver wireless node performs FD communication in an FD zone) and HD mode operation (in which the receiver wireless node performs only HD communications). Some receiver wireless nodes may be capable of only HD mode operation. In some aspects, a set of SSBs (such as SSB515) may be configured for a duplexing mode, such as an FD mode at a transmitter wireless node, an FD mode at a receiver wireless node, an HD mode at a transmitter wireless node, or an HD mode at a receiver wireless node. For example, one or more of these duplexing modes may be configured with a set of SSBs having a decreased transmit power configuration to reduce self-interference or transmit power limit violation (in an FD zone), or having an increased transmit power configuration to provide an acceptable SINR for an FD receiver wireless node in an FD zone.

FIG.8is a diagram800illustrating an example of SSB transmit power configuration using explicit indication. As shown,FIG.8includes a receiver wireless node805(such as the UE120or the base station110ofFIG.1, a TRP, the non-anchor base station345or the UE355ofFIG.3, an MT or a DU of an IAB-node410ofFIG.4, a child IAB-node ofFIG.6, or a UE as described inFIG.7) and a transmitter wireless node810(such as the UE120or the base station110ofFIG.1, a TRP, the anchor base station335or the non-anchor base station345ofFIG.3, a DU of an IAB-donor405or an IAB-node410ofFIG.4, a parent IAB-node ofFIG.6, or a base station as described inFIG.7). In some aspects, the transmitter wireless node and the receiver wireless node may be UEs and may communicate using a sidelink or device-to-device (D2D) protocol. In some aspects, the transmitter wireless node and the receiver wireless node may be IAB nodes (such as an IAB-donor or an IAB-node) of an IAB network. In some aspects, the transmitter wireless node and the receiver wireless node may be base stations performing backhaul discovery. In some aspects, the transmitter wireless node may be a base station110, and the receiver wireless node may be a UE120operating in a radio access network (such as performing uplink and downlink communications).

As shown by reference number815, the receiver wireless node may receive an indication of one or more transmit power configurations for one or more sets of SSBs. As shown, a transmit power configuration may include a power offset for transmission of an SSB and may indicate a set of SSBs for which the power offset is to be used. For example, the transmit power configuration may be mapped to the set of SSBs. The power offset can be relative to another SSB or can be relative to a baseline transmit power. In some aspects, the indication of the one or more transmit power configurations may indicate an absolute transmit power (such as without using a power offset). The receiver wireless node may use the indication to perform monitoring, measurement, or reporting of received SSBs, as described elsewhere herein. In some aspects, the receiver wireless node may determine the indication. “Obtaining the indication” may refer to receiving the indication, to determining the indication, to ascertaining the indication, or to selecting the indication.

In the example ofFIG.8, the receiver wireless node receives the indication from the transmitter wireless node, which is the node that will transmit one or more SSBs in accordance with the one or more transmit power configurations. In some other aspects, the receiver wireless node may receive the indication from a control node, such as a gNB, a CU that configures a DU of the transmitter wireless node and an MT of the receiver wireless node, or (if the communicating wireless nodes are UEs) a UE or road-side unit. The receiver wireless node may receive the indication via remaining minimum system information (RMSI) (such as via system information block 1 (SIB1)), an SIB other than SIB1, dedicated radio resource control (RRC) signaling, a group-common message (such as downlink control information), a functional split (F1) interface message, an STC associated with backhaul discovery, dedicated downlink control information, or another form of signaling.

In some aspects, a wireless node may receive the indication via a backhaul connection. For example, a DU of the transmitter wireless node may receive the indication of the sets of SSBs (or the transmit power configuration), such as via a logical interface between the DU and a CU. In some aspects, a DU (such as a DU of the transmitter wireless node) may provide the indication to a CU. For example, the DU may indicate one or more selected transmit power configurations (selected by the DU) for one or more sets of SSBs.

The indication may define one or more sets of SSBs. In the example ofFIG.8, the indication defines two sets of SSBs. For example, the sets of SSBs may be defined explicitly. For example, the indication may include one or more SSB bitmaps. A bitmap for a set of SSBs may include multiple bits corresponding to multiple SSBs. A bit set to a first value may indicate that a corresponding SSB (such as a corresponding SSB index) belongs to a set of SSBs, and the bit set to a second value may indicate that the corresponding SSB does not belong to the set of SSBs. In some aspects, the indication may include one bitmap per set of SSBs defined by the indication. In some aspects, the bitmap may be of a size equal to a total number of SSB candidates within an SS burst set (such as a value of Lmax, which may be based on a carrier frequency or band). For example, the bitmap may include Lmaxbits. In some other aspects, the bitmap may be of a size equal to a number of transmitted SSBs or a number of configured SSBs. For example, in some cases, a transmitter wireless node may transmit fewer than LmaxSSBs. In this case, the bitmap may include a number of bits equal to a number of SSBs to be transmitted in an SS burst set. In some aspects, the indication may include information identifying a set of SSB indices. For example, the indication may explicitly identify each SSB index to be included in a set of SSBs.

As further shown, a set of SSBs may be associated with a duplexing mode. In some aspects, the indication may indicate the duplexing mode. For example, the indication may indicate that a transmitter wireless node operating in a given duplexing mode, or a transmitter wireless node transmitting an SSB for a receiver wireless node operating in a given duplexing mode, should transmit an SSB using a given transmit power configuration. In this example, the transmitter wireless node may determine which transmit power configuration to use for an SSB based on the duplexing mode. In some other aspects, the indication may not explicitly indicate the duplexing mode. For example, the transmitter wireless node may transmit an SSB belonging to a set of SSBs with a corresponding transmit power configuration without regard for which duplexing mode is in use by the transmitter wireless node or the receiver wireless node.

The duplexing mode may include, for example, an HD mode (associated with transmitting an SSB in an HD fashion), a transmitter-side FD mode (associated with transmitting an SSB in an FD fashion at the transmitter wireless node), a receiver-side FD mode (associated with transmitting an SSB to be received by the receiver wireless node in an FD fashion), and an IAB mode (where a resource for transmission of the SSB by a DU overlaps with a resource for communication by a co-located MT). As mentioned, different sets of SSBs may be configured for different duplexing modes.

In some implementations, the transmit power configuration may provide an increased transmit power for an SSB transmitted to an FD-capable receiver wireless node, such as an FD UE. Thus, the SSB may achieve an SINR at the receiver wireless node that enables successful reception of the SSB. In some other implementations, the transmit power configuration may provide a decreased transmit power for an SSB transmitted by an FD-capable transmitter wireless node. Thus, self-interference at the transmitter wireless node may be reduced and a total transmit power limit of the transmitter wireless node may be satisfied.

Reference number820shows SSB transmission while one or more of the receiver wireless node or the transmitter wireless node are in a first duplexing mode. The first duplexing mode may include, for example, an HD mode, a transmitter-side FD mode, a receiver-side FD mode, an IAB mode, or another form of mode. In some aspects, the duplexing mode may be based on whether the SSB is transmitted in an FD zone (of the transmitter wireless node or the receiver wireless node). In some aspects, illustrated and described in connection withFIG.9, the duplexing mode is based on a resource configuration of a resource used to transmit the SSB or a resource that overlaps the resource used to transmit the SSB.

As shown by reference number825, the transmitter wireless node may transmit an SSB in accordance with a transmit power configuration. For example, the transmit power configuration may use a power offset configured for the first set of SSBs (power offset 1) based on the first set of SSBs being associated with the first duplexing mode. As shown by reference number830, the receiver wireless node may measure the SSB based on the transmit power configuration. For example, the receiver wireless node may assume an adjusted transmit power (defined by power offset 1) for the purpose of beam management, RLM, RRM or the like. If measurements based on multiple SSB instances with different transmit power configurations are to be combined (such as for filtering purposes), then the receiver wireless node may adjust (such as normalize) measurements of the multiple SSB instances in accordance with the different transmit power configurations. In some aspects, if an SSB has an adjusted transmit power that is lower than a threshold, then the receiver wireless node may skip reception of the SSB in an evaluation period for the measurement or reporting. In such examples, a length of the evaluation period may be extended. For example, the length of the evaluation period may be extended based on how many measurement occasions are to be skipped (such as by a factor of 2, a factor of 3, or another factor).

Reference number835shows SSB transmission while one or more of the receiver wireless node or the transmitter wireless node are in a second duplexing mode. The second duplexing mode may include, for example, an HD mode, a transmitter-side FD mode, a receiver-side FD mode, an IAB mode, or another form of mode. In some aspects, the duplexing mode may be based on whether the SSB is transmitted in an FD zone (of the transmitter wireless node or the receiver wireless node).

As shown by reference number840, the transmitter wireless node may transmit another SSB in accordance with a transmit power configuration. For example, the transmit power configuration may use a power offset configured for the second set of SSBs (power offset 2) based on the second set of SSBs being associated with the second duplexing mode. As shown by reference number845, the receiver wireless node may measure the SSB based on the transmit power configuration. For example, the receiver wireless node may assume an adjusted transmit power (defined by power offset 2) for the purpose of beam management, RLM, RRM or the like. If measurements based on multiple SSB instances with different transmit power configurations are to be combined (such as for filtering purposes), then the receiver wireless node may adjust (such as normalize) measurements of the multiple SSB instances in accordance with the different transmit power configurations. In some aspects, if an SSB has an adjusted transmit power that is lower than a threshold, then the receiver wireless node may skip reception of the SSB in an evaluation period. In such examples, the receiver wireless node may extend a length of the evaluation period.

As shown by reference number850, the receiver wireless node may perform measurement or reporting regarding one or more SSBs. For example, the receiver wireless node may perform measurements as described with regard to reference numbers830and845. As another example, the receiver wireless node may transmit a report indicating a beam failure detection. As still another example, the receiver wireless node may transmit a report indicating a selected beam for beam failure recovery. As yet another example, the receiver wireless node may transmit an indication of radio link failure, an indication of radio link quality, an in-sync/out-of-sync indication, or a similar message. As another example, the receiver wireless node may select a suitable cell for camping, may perform cell reselection, may perform inactive mobility control, or a similar operation. As yet another example, the receiver wireless node or the transmitter wireless node may perform a handover, an RRC reestablishment, an RRC connection release with redirection, or a similar operation.

FIG.9is a diagram900illustrating an example of SSB transmit power configuration using implicit indication. As shown,FIG.9includes a receiver wireless node905(such as the UE120or the base station110ofFIG.1, the non-anchor base station345or the UE355ofFIG.3, an MT or a DU of an IAB-node410ofFIG.4, a child IAB-node ofFIG.6, or a UE as described inFIG.7) and a transmitter wireless node910(such as the UE120or the base station110ofFIG.1, the anchor base station335or the non-anchor base station345ofFIG.3, a DU of an IAB-donor405or an IAB-node410ofFIG.4, a parent IAB-node ofFIG.6, or a base station as described inFIG.7). In some aspects, the transmitter wireless node and the receiver wireless node may be UEs and may communicate using a sidelink or device-to-device protocol. In some aspects, the transmitter wireless node and the receiver wireless node may be IAB nodes (such as an IAB-donor or an IAB-node) of an IAB network. In some aspects, the transmitter wireless node and the receiver wireless node may be base stations performing backhaul discovery. In some aspects, the transmitter wireless node may be a base station110and the receiver wireless node may be a UE120of a radio access network (such as performing uplink and downlink communication).

As shown by reference number915, the transmitter wireless node may provide an indication of one or more transmit power configurations (such as one or more power offsets) for one or more sets of SSBs. For example, the indication may indicate a transmit power configuration and may map the transmit power configuration to a set of SSBs. In the example ofFIG.9, a set of SSBs may be defined based on a resource configuration. For example, the indication (or other information) may indicate a particular resource configuration, and an SSB that satisfies the particular resource configuration may belong to a set of SSBs associated with the particular resource configuration. In this case, the indication may indicate a transmit power configuration (such as a power offset) and a corresponding resource configuration for SSBs that are to utilize the transmit power configuration.

As shown by reference number920, the receiver wireless node may receive information indicating resource configurations for resources for communication between the receiver wireless node and the transmitter wireless node. In some aspects, the receiver wireless node may receive this information from the transmitter wireless node, as shown. In some other aspects, the receiver wireless node may receive this information from another node, such as a CU. In some aspects, a resource configuration may include a time division duplexing (TDD) configuration, such as a TDDconfigCommon parameter, a dedicated TDD configuration, or a cell-specific TDD configuration. In some aspects, a resource configuration may include a slot format indication (SFI) configuration. In some aspects, a resource configuration may include an IAB DU resource configuration (which may configure a resource as hard/soft/unavailable, or which may indicate a TDD pattern for an IAB DU resource). In some aspects, the resource configuration may indicate a combination of these configurations for one or more resources.

As shown by reference numbers925and930, the receiver wireless node and the transmitter wireless node may identify one or more sets of SSBs based on resource configurations. For example, the receiver wireless node or the transmitter wireless node may determine that a resource for transmitting (or receiving) an SSB has a particular resource configuration identified by the indication, or may determine that a resource for transmitting (or receiving) an SSB overlaps a resource that has the particular resource configuration identified by the indication.

As one example, the indication may indicate that an SSB overlapping with a downlink resource belongs to a particular set of SSBs. As another example, the indication may indicate that an SSB overlapping with an uplink resource belongs to a particular set of SSBs. As yet another example, the indication may indicate that an SSB overlapping with a flexible resource belongs to a particular set of SSBs. As still another example, the indication may indicate that an SSB overlapping with a full-duplex or bidirectional resource may belong to a particular SSB.

In some aspects, such as for an IAB network, the indication may indicate that SSBs within hard, not available, and soft resources may be associated with different sets of SSBs. Additionally, or alternatively, SSBs on resources overlapping with resources allocated to a parent IAB-node or a child IAB-node of the transmitter wireless node may be assigned to a first set of SSBs, and SSBs within exclusively resources allocated to the transmitter wireless node may be assigned to a second set of SSBs.

In some aspects, the resource configuration may indicate a configured communication resource. For example, the resource configuration may be a semi-static (such as RRC) configuration of a configured communication. As just one example, the resource configuration may indicate a RACH occasion (RO) associated with transmitting a RACH message for a RACH procedure. In some aspects, an SSB that overlaps with a configured communication resource may be associated with a particular set of SSBs.

As shown by reference number935, the transmitter wireless node may transmit an SSB using a transmit power configuration associated with a first duplexing mode. The transmitter wireless node may transmit the SSB using the transmit power configuration associated with a first set of SSBs. The transmitter wireless node may determine that the SSB is to be transmitted using the transmit power configuration associated with the first set of SSBs (that is, associated with the first duplexing mode) based on a resource of the SSB, or a resource with which the resource of the SSB is overlapped, being associated with a resource configuration that maps to the first set of SSBs. As shown by reference number940, the receiver wireless node may measure the SSB based on the transmit power configuration associated with the first set of SSBs.

As shown by reference number945, the transmitter wireless node may transmit another SSB using a transmit power configuration associated with a second duplexing mode. The transmitter wireless node may transmit the SSB using the transmit power configuration associated with a second set of SSBs. The transmitter wireless node may determine that the SSB is to be transmitted using the transmit power configuration associated with the second set of SSBs (that is, associated with the first duplexing mode) based on a resource of the SSB, or a resource with which the resource of the SSB is overlapped, being associated with a resource configuration that maps to the second set of SSBs. As shown by reference number950, the receiver wireless node may measure the SSB based on the transmit power configuration associated with the second set of SSBs.

As shown by reference number955, the receiver wireless node may perform measurement or reporting regarding one or more SSBs. For example, the receiver wireless node may perform measurements as described with regard to reference numbers830and845ofFIG.8, or with regard to reference numbers940and950ofFIG.9. As another example, the receiver wireless node may transmit a report indicating a beam failure detection. As still another example, the receiver wireless node may transmit a report indicating a selected beam for beam failure recovery. As yet another example, the receiver wireless node may transmit an indication of radio link failure, an indication of radio link quality, an in-sync/out-of-sync indication, or a similar message. As another example, the receiver wireless node may select a suitable cell for camping, may perform cell reselection, may perform inactive mobility control, or a similar operation. As yet another example, the receiver wireless node or the transmitter wireless node may perform a handover, an RRC reestablishment, an RRC connection release with redirection, or a similar operation.

FIG.10is a diagram illustrating an example process1000performed, for example, by an apparatus of a wireless node. The process1000is an example where an apparatus of a transmitter wireless node (for example, the UE120or the base station110ofFIG.1, the anchor base station335or the non-anchor base station345ofFIG.3, a DU of an IAB-donor405or an IAB-node410ofFIG.4, a parent IAB-node ofFIG.6, a base station as described inFIG.7, or a transmitter wireless node910) performs operations associated with transmit power adjustment for an SSB.

As shown inFIG.10, in some aspects, the process1000may include transmitting, in a first duplexing mode, a first SSB with a first transmit power configuration that is associated with the first duplexing mode, the first transmit power configuration being configured for a set of first SSBs including the first SSB and associated with the first duplexing mode (block1010). For example, the apparatus (such as by using communication manager140, transmission component1204, or power control component1208, depicted inFIG.12) may transmit, in a first duplexing mode, a first synchronization SSB with a first transmit power configuration. In some aspects, the first transmit power configuration may be associated with the first duplexing mode. In some aspects, the first transmit power configuration may be configured for a set of first SSBs including the first SSB and associated with the first duplexing mode.

As further shown inFIG.10, in some aspects, the process1000may include transmitting, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode, the second transmit power configuration being configured for a set of second SSBs including the second SSB and associated with the second duplexing mode (block1020). For example, the apparatus (such as by using communication manager140, transmission component1204, or power control component1208, depicted inFIG.12) may transmit, in a second duplexing mode, a second SSB with a second transmit power configuration. The second transmit power configuration may be different than the first transmit power configuration. In some aspects, the second transmit power configuration may be associated with the second duplexing mode. In some aspects, the second transmit power configuration may be configured for a set of second SSBs including the second SSB and associated with the second duplexing mode.

The process1000may include additional aspects, such as any single aspect or any combination of aspects described in connection with the process1000or in connection with one or more other processes described elsewhere herein.

In a first additional aspect, the process1000includes transmitting information indicating a power offset for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the power offset.

In a second additional aspect, alone or in combination with the first aspect, the information indicating the power offset is transmitted via at least one of remaining minimum system information (RMSI), a system information block (SIB), dedicated radio resource control (RRC) signaling, a group-common message, a functional split interface message, or an SSB transmission configuration (STC) associated with backhaul discovery.

In a third additional aspect, alone or in combination with one or more of the first and second aspects, the first duplexing mode is at least one of a half-duplex (HD) mode at the wireless node, a full-duplex (FD) mode at the wireless node, an FD mode at a receiver wireless node, an HD mode at a receiver wireless node, or an integrated access and backhaul (IAB) mode, where a resource for the first SSB overlaps with a resource for communication with a mobile termination.

In a fourth additional aspect, alone or in combination with one or more of the first through third aspects, the information indicating the power offset is transmitted to at least one of a receiver wireless node, a control node, or a central unit via a backhaul connection.

In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, the process1000includes receiving, from a control node via a backhaul connection, information indicating a power offset for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the power offset.

In a sixth additional aspect, alone or in combination with one or more of the first through fifth aspects, the process1000includes transmitting information indicating an absolute transmit power for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the absolute transmit power.

In a seventh additional aspect, alone or in combination with one or more of the first through sixth aspects, the set of first SSBs are indicated using a bitmap.

In an eighth additional aspect, alone or in combination with one or more of the first through seventh aspects, the bitmap includes a number of bits equal to a total number of SSB candidates of the wireless node.

In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, the bitmap includes a number of bits equal to a number of SSBs configured to be transmitted by the wireless node.

In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the set of first SSBs are indicated using a set of SSB indices.

In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, the first SSB is transmitted with the first transmit power configuration based on the first SSB being associated with a resource configuration corresponding to the first duplexing mode.

In a twelfth additional aspect, alone or in combination with one or more of the first through eleventh aspects, the resource configuration is at least one of a time division duplexing (TDD) configuration, a slot format indication (SFI), or an integrated access and backhaul (IAB) distributed unit (DU) resource configuration.

In a thirteenth additional aspect, alone or in combination with one or more of the first through twelfth aspects, the first SSB is transmitted with the first transmit power configuration based on the first SSB being transmitted on a resource that overlaps with a configured communication resource.

In a fourteenth additional aspect, alone or in combination with one or more of the first through thirteenth aspects, the first duplexing mode is a full-duplex mode at a receiver wireless node, and where the first transmit power configuration indicates an increased transmit power relative to the second transmit power configuration.

In a fifteenth additional aspect, alone or in combination with one or more of the first through fourteenth aspects, the first duplexing mode is a full-duplex mode at the wireless node, and where the first transmit power configuration indicates a decreased transmit power relative to the second transmit power configuration.

AlthoughFIG.10shows example blocks of the process1000, in some aspects, the process1000may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted inFIG.10. Additionally, or alternatively, two or more of the blocks of the process1000may be performed in parallel.

FIG.11is a diagram illustrating an example process1100performed, for example, by an apparatus of a wireless node. The process1100is an example where an apparatus of a receiver wireless node (for example, the UE120or the base station110ofFIG.1, the non-anchor base station345or the UE355ofFIG.3, an MT or a DU of an IAB-node410ofFIG.4, a child IAB-node ofFIG.6, a UE as described inFIG.7, or a receiver wireless node905) performs operations associated with transmit power adjustment for an SSB.

As shown inFIG.11, in some aspects, the process1100may include obtaining an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode, and a second transmit power configuration for a set of second SSBs associated with a second duplexing mode (block1110). For example, the apparatus (such as by using communication manager150, reception component1302, or power control component1308, depicted inFIG.13) may obtain an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode. The apparatus may obtain a second transmit power configuration for a set of second SSBs associated with a second duplexing mode.

As further shown inFIG.11, in some aspects, the process1100may include receiving an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB, where the selected transmit power configuration is the first transmit power configuration if the selected duplexing mode is the first duplexing mode and the selected transmit power configuration is the second transmit power configuration if the selected duplexing mode is the second duplexing mode (block1120). For example, the apparatus (such as by using communication manager, reception component1302, or power control component1308, depicted inFIG.13) may receive an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB. The selected transmit power configuration may be the first transmit power configuration if the selected duplexing mode is the first duplexing mode. The selected transmit power configuration may be the second transmit power configuration if the selected duplexing mode is the second duplexing mode.

The process1100may include additional aspects, such as any single aspect or any combination of aspects described in connection with the process1100or in connection with one or more other processes described elsewhere herein.

In a first additional aspect, the process1100includes receiving information indicating a power offset for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, where the selected transmit power configuration is based on the power offset.

In a second additional aspect, alone or in combination with the first aspect, the information indicating the power offset is received via at least one of RMSI, a SIB, dedicated RRC signaling, a group-common message, a functional split interface message, or an STC associated with backhaul discovery.

In a third additional aspect, alone or in combination with one or more of the first and second aspects, the selected duplexing mode is at least one of a HD mode at a transmitter wireless node from which the SSB is received, a FD mode at the transmitter wireless node, an FD mode at the wireless node, an HD mode at a receiver wireless node, or an IAB mode, where a resource for the SSB overlaps with a resource for communication with a mobile termination.

In a fourth additional aspect, alone or in combination with one or more of the first through third aspects, the process1100includes receiving, from a central unit or a distributed unit, information indicating a power offset for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, where the selected transmit power configuration is based on the power offset.

In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, the process1100includes receiving information indicating an absolute transmit power for the set of first SSBs associated with the first duplexing mode, where the first transmit power configuration is based on the absolute transmit power.

In a sixth additional aspect, alone or in combination with one or more of the first through fifth aspects, the selected transmit power configuration is configured for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, and where the set of SSBs are indicated using a bitmap.

In a seventh additional aspect, alone or in combination with one or more of the first through sixth aspects, the selected transmit power configuration is configured for a set of SSBs, of the set of first SSBs and the set of second SSBs and associated with the selected duplexing mode, and where the set of SSBs are indicated using a set of SSB indices.

In an eighth additional aspect, alone or in combination with one or more of the first through seventh aspects, the SSB is received using the selected transmit power configuration based on the SSB being associated with a resource configuration corresponding to the selected duplexing mode.

In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, the resource configuration is at least one of a TDD configuration, an SFI, or an IAB DU resource configuration.

In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the SSB is received using the selected transmit power configuration based on the SSB being received on a resource that overlaps with a configured communication resource.

In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, the process1100includes performing measurement or reporting regarding the SSB.

In a twelfth additional aspect, alone or in combination with one or more of the first through eleventh aspects, the measurement or reporting includes at least one of beaming failure detection, beaming failure recovery, radio link monitoring, or radio resource management.

In a thirteenth additional aspect, alone or in combination with one or more of the first through twelfth aspects, the SSB is a first SSB of the set of first SSBs and the selected transmit power configuration is the first transmit power configuration, and where the method further includes skipping measurement or reporting of a second SSB of the set of second SSBs associated with the second transmit power configuration, where the second transmit power configuration is associated with a lower transmit power than the first transmit power configuration.

In a fourteenth additional aspect, alone or in combination with one or more of the first through thirteenth aspects, an evaluation period for the measurement or reporting regarding the first SSB is extended.

AlthoughFIG.11shows example blocks of the process1100, in some aspects, the process1100may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted inFIG.11. Additionally, or alternatively, two or more of the blocks of the process1100may be performed in parallel.

FIG.12is a diagram of an example apparatus1200for wireless communication. The apparatus1200may be a wireless node (such as a transmitter wireless node), or a wireless node (such as a transmitter wireless node) may include the apparatus1200. In some aspects, the apparatus1200includes a reception component1202and a transmission component1204, which may be in communication with one another (for example, via one or more buses or one or more other components). As shown, the apparatus1200may communicate with another apparatus1206(such as a UE, a base station, or another wireless communication device) using the reception component1202and the transmission component1204. As further shown, the apparatus1200may include the communication manager140. The communication manager140may include a power control component1208, among other examples.

The transmission component1204or the power control component1208may transmit, in a first duplexing mode, a first SSB with a first transmit power configuration that is associated with the first duplexing mode, the first transmit power configuration being configured for a set of first SSBs including the first SSB and associated with the first duplexing mode. The transmission component1204or the power control component1208may transmit, in a second duplexing mode, a second SSB with a second transmit power configuration that is different than the first transmit power configuration and that is associated with the second duplexing mode, the second transmit power configuration being configured for a set of second SSBs including the second SSB and associated with the second duplexing mode.

FIG.13is a diagram of an example apparatus1300for wireless communication. The apparatus1300may be a wireless node (such as a receiver wireless node), or a wireless node (such as a receiver wireless node) may include the apparatus1300. In some aspects, the apparatus1300includes a reception component1302and a transmission component1304, which may be in communication with one another (for example, via one or more buses or one or more other components). As shown, the apparatus1300may communicate with another apparatus1306(such as a UE, a base station, or another wireless communication device) using the reception component1302and the transmission component1304. As further shown, the apparatus1300may include the communication manager150. The communication manager150may include a power control component1308and a determination component1310, among other examples.

The reception component1302or the determination component1310may obtain an indication of a first transmit power configuration for a set of first SSBs associated with a first duplexing mode, and a second transmit power configuration for a set of second SSBs associated with a second duplexing mode. The reception component1302or the power control component1308may receive an SSB using a selected transmit power configuration that is associated with a selected duplexing mode of the SSB, where the selected transmit power configuration is the first transmit power configuration if the selected duplexing mode is the first duplexing mode and the selected transmit power configuration is the second transmit power configuration if the selected duplexing mode is the second duplexing mode.

The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construed as hardware, firmware, or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, or a combination of hardware and software. As used herein, the phrase “based on” is intended to be broadly construed to mean “based at least in part on.” As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples. As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover: a, b, c, a+b, a+c, b+c, and a+b+c.

Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (for example, related items, unrelated items, or a combination of related and unrelated items), and may be used interchangeably with “one or more.” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has,” “have,” “having,” and similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A may also have B). Further, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or,” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of”).

In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware, including the structures disclosed in this specification and their structural equivalents thereof, or in any combination thereof. Aspects of the subject matter described in this specification also can be implemented as one or more computer programs (such as one or more modules of computer program instructions) encoded on a computer storage media for execution by, or to control the operation of, a data processing apparatus.

Various modifications to the aspects described in this disclosure may be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the spirit or scope of this disclosure. Thus, the claims are not intended to be limited to the aspects shown herein, but are to be accorded the widest scope consistent with this disclosure, the principles and the novel features disclosed herein.