Patent Description:
Examples of such multiple-access systems include fourth generation (<NUM>) systems such as a Long Term Evolution (LTE) systems or LTE-Advanced (LTE-A) systems, and fifth generation (<NUM>) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform-spread-OFDM (DFT-S-OFDM).

Some wireless devices in a wireless communication system may be capable of full duplex data transmission. With full duplex data transmissions, data can be transmitted and received at the same time. For example, a wireless device may transmit uplink communications while at the same time receiving downlink communications. In some examples, the wireless device may have two or more antenna systems (e.g., antenna arrays). Uplink communications may be transmitted using one of the antenna systems, while downlink communications may be received using a different one of the antenna systems.

<CIT> refers to methods and apparatus for operating wireless devices in a wireless communication system. Thereby, the wireless device receives an indication of a preferred operating mode, where the wireless device can transmit and receive simultaneously on the same frequency band in a full duplex mode and a non full duplex mode. Further, the communication can be selectively conducted on either a full duplex basis or a non full duplex basis.

<CIT> relates to utilizing a partial full-duplex in a time dependent operational mode in wireless communications. During at least one time interval the network may configure a full-duplex operational mode for a portion of the UEs comprised in a cell and located more than a predefined distance from a cell boundary, and a half-duplex operational mode for a remaining portion of the UEs comprised in the cell and located less than a predefined distance from the cell boundary.

<CIT> is directed to wireless communications and, more particularly, to a method for D2D operation executed by a terminal in a wireless communication system and a terminal using the method. Thereby, the terminal can inform a band supporting a full-duplex scheme for a cellular communication regarding a specific band supporting the D2D operation. That is, a corresponding band supporting a full-duplex scheme for a cellular communication for each D2D supporting band can be informed.

Preferred embodiments are subject of the dependent claims.

The described techniques relate to improved methods, systems, devices, or apparatuses that support duplexing modes based on power configurations for transmissions. Generally, the described techniques provide for a wireless device configured to communicate with at least one target device. The wireless device may identify a set of power configurations for a set of communications with the at least one target device. The wireless device may determine a duplex mode for the set of communications based on the set of power configurations. The wireless device may then communicate with the at least one target device based on the set of power configurations and the duplex mode.

A method of wireless communication at a wireless device is described. The method may include identifying a set of power configurations for a set of communications with at least one target device, determining a duplexing mode for the set of communications based on the identified set of power configurations, and communicating with the at least one target device based on the identified set of power configurations and the determined duplexing mode.

An apparatus for wireless communication at a wireless device is described. The apparatus may include means for identifying a set of power configurations for a set of communications with at least one target device, means for determining a duplexing mode for the set of communications based on the identified set of power configurations, and means for communicating with the at least one target device based on the identified set of power configurations and the determined duplexing mode.

Another apparatus for wireless communication at a wireless device is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be operable to cause the processor to identify a set of power configurations for a set of communications with at least one target device, determine a duplexing mode for the set of communications based on the identified set of power configurations, and communicate with the at least one target device based on the identified set of power configurations and the determined duplexing mode.

A non-transitory computer-readable medium for wireless communication at a wireless device is described. The non-transitory computer-readable medium may include instructions operable to cause a processor to identify a set of power configurations for a set of communications with at least one target device, determine a duplexing mode for the set of communications based on the identified set of power configurations, and communicate with the at least one target device based on the identified set of power configurations and the determined duplexing mode.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for identifying a signal type or channel type associated with the set of communications, where the set of power configurations may be identified based on the identified signal type or channel type.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for identifying one or more parameters associated with a capability of the wireless device or with a capability of the at least one target device, where the set of power configurations may be identified based on the identified one or more parameters.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for identifying a level of traffic demand of the wireless device, the at least one target device, or an additional device, where the set of power configurations may be identified based on the identified level of traffic demand.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for identifying one or more parameters associated with one or more wireless communication links between the wireless device and the at least one target device, where the set of power configurations may be identified based on the identified one or more parameters.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the duplexing mode may be determined based on a level of traffic demand, capabilities associated with one or more devices, limitations associated with one or more devices, received measurement reports of one or more reference signals, or a combination thereof.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the reference signals include at least one of a synchronization signal, a beam reference signal, or a combination thereof.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, determining the duplexing mode includes, receiving an indication of the duplexing mode for the set of communications.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the duplexing mode may be selected by a control node.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the control node includes at least one of a central node, a scheduling device of the wireless device, the at least one target device, or any combination thereof.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for communicating a first set of channels, where the first set of channels is a set of control channels, in a first set of time resources of a transmission time interval (TTI) according to a first duplexing mode. Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for communicating a second set of channels, where the second set of channels is a set of data channels, in a second set of time resources of the TTI according to a second duplexing mode.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the first duplexing mode may be a full duplex mode and the second duplexing mode may be a half-duplex mode.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for communicating with the at least one target device according to a full duplex mode.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for transmitting a first control channel in at least one of a downlink direction or an uplink direction in a first set of time resources of a TTI. Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for receiving a second control channel in at least one of the uplink direction or the downlink direction in the first set of time resources of the TTI.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the transmissions of control channels may be scheduled in a downlink direction or an uplink direction in the first time resource of the TTI.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for allocating power between the target device and the second target device based on the set of power configurations.

Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for transmitting a first control channel to a second wireless device in a first set of time resources of a TTI. Some examples of the method, apparatus, and non-transitory computer-readable medium described above may further include processes, features, means, or instructions for receiving a second control channel from the second wireless device in the first set of time resources of the TTI.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the transmission of control channels may be unscheduled in the first set of time resources of the TTI.

In some examples of the method, apparatus, and non-transitory computer-readable medium described above, the duplexing mode includes at least one of a full duplex mode, half duplex mode, single user (SU) multiple input multiple output (MIMO) (SU-MIMO) mode, multiple user (MU) MIMO mode, or a combination thereof.

In a full duplex mode, a wireless device may transmit and receive communications simultaneously. However, the receiving antenna at the wireless device may experience self-interference (SI) from the transmitting antenna (e.g., the signals transmitted by the transmitting antenna may interference with the signals sent to the wireless device from another wireless device in the wireless communication system). Depending on the extent of the SI, the use of full duplex mode may impair the ability of the wireless device to receive communications from other wireless devices.

The extent of the SI may be based on the power level of the received signal, the power level of the transmitted signal, and the link budget and/or signal to interference plus noise ratio (SINR) requirements of the received signal. If the power level of the transmitted signal is much greater than the power level of the received signal and/or the received signal requires a large SINR, operation in the full duplex mode may not improve the data capacity of the wireless communication system. In one example, the data capacity may be decreased.

Accordingly, a wireless device may select a duplex or duplexing mode based on a set of power configurations for communications with other wireless devices in the wireless communication system. The wireless device may determine the power configurations for the communications based on a type of signal, a type of channel, a parameter of a transmitting device, a parameter of a receiving device, or a combination thereof.

The wireless device may then select a duplex mode based on the determined set of power configurations. The duplex mode may be a full duplex mode when the transmitted signal and the received signal will not interfere with each other such that reception of either signal is impaired. The duplex mode may be a half-duplex mode when operation in full duplex mode may impair reception of at least one of the signals.

The wireless device may then transmit and/or receive communications in accordance with the set of power configurations and the selected duplex mode. For example, the wireless device may both transmit and receive communications simultaneously when a full-duplex mode is selected. In contrast, the wireless device may either transmit or receive, but not both, when a half-duplex mode is selected. In this manner, problems caused by SI may be decreased or minimized.

Aspects of the disclosure are initially described in the context of a wireless communications system. Aspects of the disclosure are further illustrated by, and described with reference to, apparatus diagrams, system diagrams, and flowcharts that relate to duplexing modes based on power configurations for transmissions.

<FIG> illustrates an example of a wireless communications system <NUM> in accordance with various aspects of the present disclosure. The wireless communications system <NUM> includes base stations <NUM>, user equipment (UEs) <NUM>, and a core network <NUM>. In some examples, the wireless communications system <NUM> may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, or a New Radio (NR) network. In some cases, wireless communications system <NUM> may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, or communications with low-cost and low-complexity devices.

The wireless communications system <NUM> may include, for example, a heterogeneous LTE/LTE-A or NR network in which different types of base stations <NUM> provide coverage for various geographic coverage areas <NUM>.

In some cases, operations in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers (CCs) operating in a licensed band (e.g., LAA).

In one example, a base station <NUM> may use multiple antennas or antenna arrays to conduct beamforming operations for directional communications with a UE <NUM>. For instance, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a base station <NUM> multiple times in different directions, which may include a signal being transmitted according to different beamforming weight sets associated with different directions of transmission. Transmissions in different beam directions may be used to identify (e.g., by the base station <NUM> or a receiving device, such as a UE <NUM>) a beam direction for subsequent transmission and/or reception by the base station <NUM>. Some signals, such as data signals associated with a particular receiving device, may be transmitted by a base station <NUM> in a single beam direction (e.g., a direction associated with the receiving device, such as a UE <NUM>). In some examples, the beam direction associated with transmissions along a single beam direction may be determined based at least in in part on a signal that was transmitted in different beam directions. For example, a UE <NUM> may receive one or more of the signals transmitted by the base station <NUM> in different directions, and the UE <NUM> may report to the base station <NUM> an indication of the signal it received with a highest signal quality, or an otherwise acceptable signal quality. Although these techniques are described with reference to signals transmitted in one or more directions by a base station <NUM>, a UE <NUM> may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE <NUM>), or transmitting a signal in a single direction (e.g., for transmitting data to a receiving device).

For example, a receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets applied to signals received at a set of antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at a set of antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. The single receive beam may be aligned in a beam direction determined based on listening according to different receive beam directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio, or otherwise acceptable signal quality based on listening according to multiple beam directions).

In some examples, signal waveforms transmitted over a carrier may be made up of multiple sub-carriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform-spread-OFDM (DFT-S-OFDM).

The organizational structure of the carriers may be different for different radio access technologies (e.g., LTE, LTE-A, NR).

In other examples, some UEs <NUM> may be configured for operation using a narrowband protocol type that is associated with a predefined portion or range (e.g., set of subcarriers or resource blocks (RBs)) within a carrier (e.g., "in-band" deployment of a narrowband protocol type).

Devices of the wireless communications system <NUM> (e.g., base stations <NUM> or UEs <NUM>) may have a hardware configuration that supports communications over a particular carrier bandwidth, or may be configurable to support communications over one of a set of carrier bandwidths. In some examples, the wireless communications system <NUM> may include base stations <NUM> and/or UEs that can support simultaneous communications via carriers associated with more than one different carrier bandwidth.

Wireless communications system <NUM> may support communication with a UE <NUM> on multiple cells or carriers, a feature which may be referred to as carrier aggregation or multi-carrier operation. Carrier aggregation may be used with both FDD and TDD CCs.

In some cases, wireless communications system <NUM> may utilize enhanced CCs (eCCs).

Wireless communications systems such as an NR system may utilize any combination of licensed, shared, and unlicensed spectrum bands, among others. The flexibility of eCC symbol duration and subcarrier spacing may allow for the use of eCC across multiple spectrums. In some examples, NR shared spectrum may increase spectrum utilization and spectral efficiency, specifically through dynamic vertical (e.g., across frequency) and horizontal (e.g., across time) sharing of resources.

One or more of the base stations <NUM> and/or UEs may include a communications manager <NUM>, which may be configured to determine a duplex mode for transmissions. In some examples, the communications manager <NUM> may be configured to determine power configurations for one or more communications with a target device. The communications manager <NUM> may be configured to determine the power configurations based on a type of signal, a type of channel, one or more parameters of the base station <NUM> or UE <NUM>, one or more parameters of the target device, and combinations thereof.

In some examples, the communications manager <NUM> may be configured to determine a duplex mode based on the identified set of power configurations. In some examples, the communications manager <NUM> may be configured to receive an indication of a duplex mode for the communications from one or more control nodes, and may determine the duplex mode based on the received indication.

In some examples, the selected duplex mode may be a full duplex mode, in which the base station <NUM> or UE <NUM> may transmit and receive communications in the same time resources (e.g., a slot or mini-slot) of a TTI (e.g., a frame or sub-frame). In some other examples, the selected duplex mode may be a half-duplex mode, in which the base station <NUM> or UE <NUM> may transmit or receive communications, but may not do both, in the same time resources of a TTI. A half-duplex mode may be a transmission mode or a reception mode. In some examples, a half-duplex mode may be a SU-MIMO mode or a MU-MIMO mode.

The communications manager <NUM> may be further configured to transmit and/or receive communications based on the power configurations and/or the selected duplex mode.

<FIG> illustrates an example of a wireless communication system <NUM> that supports duplexing modes based on power configurations for transmissions in accordance with various aspects of the present disclosure. In some examples, wireless communication system <NUM> may implement aspects of wireless communication system <NUM>.

The wireless communication system may include a wireless device <NUM>. In some examples, a wireless device <NUM> may be an example of aspects of a base station <NUM> as described with reference to <FIG>. In some other examples, a wireless device <NUM> may be an example of aspects of a UE <NUM> as described with reference to <FIG>. In some other examples, a wireless device <NUM> may be a relay that supports both UE functionality (receiving downlink control information and/or transmitting uplink control information) and base station functionality (receiving uplink control information and/or transmitting downlink control information). Uplink transmissions by such a relay may be scheduled by the downlink control information received by the UE functionality, and the relay may schedule the uplink transmissions received from other UEs in the system in the downlink control information transmitted by the base station functionality.

The wireless device <NUM> may include a first antenna system <NUM> and a second antenna system <NUM>. Accordingly, the wireless device <NUM> may be capable of transmitting and receiving at the same time (e.g., by transmitting signals using the first antenna system <NUM> and receiving signals using the second antenna system <NUM>). However, such operation may cause SI, where the transmission using the first antenna system <NUM> causes interference with the reception at the second antenna system <NUM>. The level of SI may depend on the transmitted and received power levels. If the level of SI is too high, the wireless device <NUM> may not be able to transmit and receive simultaneously.

The wireless device <NUM> may determine power configurations for communications with one or more other wireless devices in the wireless communication system. For example, the wireless device <NUM> may determine a transmission power level (e.g., for a transmission from the wireless device <NUM> to a first wireless device in the wireless communication system using the first antenna system <NUM>) and a reception power level (e.g., for a reception at the wireless device <NUM> from a second wireless device in the wireless communication system using the second antenna system <NUM>).

In some examples, the wireless device <NUM> may determine power configurations (e.g., transmission and/or reception power levels) for communications with one or more other wireless devices based on a type of signal and/or a type of channel being transmitted or received. For example, power configuration may be allocated between multiple devices in a full duplex, MU-MIMO mode. For example, some channels (e.g., physical downlink control channels (PDCCH) and/or physical uplink control channels (PUCCH)) may be able to operate without a high link budget, e.g., without a high SINR. For example, these channels may be transmitted using a low modulation and coding scheme (MCS). Accordingly, such channels may be transmitted and/or received with lower power levels. In some cases, in a full duplex, MU-MIMO mode, a first wireless device may transmit on a channel with a low SINR. This first wireless device may be allocated less power than a second wireless device that may transmit on a channel with a high SINR. In some examples, channels with low link budget requirements may be received with sufficient link budget even in the presence of a relatively large interference such as SI.

In some other examples, the wireless device <NUM> may determine power configurations based on parameters of the wireless device <NUM> and/or a target device. In some examples, the parameters may include capabilities of the device <NUM> (e.g., analog/digital processing capabilities, beamforming capabilities, number of antennas, number of digital chains, and/or beam-correspondence capabilities). In some examples, the parameters may include transmission power capabilities or a location or relative location (e.g., angular direction or distance) of the wireless device <NUM> and the target wireless device.

In some other examples, the wireless device <NUM> may determine the power configurations based on traffic demand in the wireless communication system and/or one or more parameters associated with one or more wireless links between communicating devices (e.g., pathloss or direction).

The wireless device <NUM> may then determine a duplex mode for the communications. The wireless device <NUM> may select a full duplex mode when the level of SI does not cause reception problems at the second antenna system <NUM>, and may select a half-duplex mode when the level of SI may cause reception problems at the second antenna system <NUM>.

In some examples, the wireless device <NUM> may select a full duplex mode when both a transmission and a reception involve a control channel, which may be received with a lower SINR (e.g., a higher interference). In some other examples, the wireless device <NUM> may select a half-duplex mode when the transmission and/or reception involve a data channel, which should be received with a larger SINR (e.g., a smaller interference).

In some examples, the wireless device <NUM> may also consider latency requirements in determining whether to select a full duplex mode or a half-duplex mode. For example, the wireless device <NUM> may select a full duplex mode for control communications due to the benefits of having more frequent opportunities to transmit and receive control channels in reducing latency.

In some examples, a half-duplex mode may be a transmission mode or a reception mode. The wireless device <NUM> may select between the transmission mode and the reception mode based on a control signal, e.g., a scheduling grant. In some examples, a half-duplex mode may be a single user - multiple input multiple output (SU-MIMO) mode or a MU-MIMO mode.

In some examples, the duplex mode is selected by a control node and may be communicated to other wireless devices in the network using a control channel. The control node may be wireless device <NUM>. In other examples, the control node may be a central node, a scheduler of wireless device <NUM>, or any of the target wireless devices. In some examples, the duplex mode may be jointly determined by two or more wireless devices in the wireless communication system. The control node may determine the duplex mode based on receiving one or more signals from the wireless device <NUM> and/or other wireless devices in the wireless communication system. The signals may indicate, for example, traffic demands, capabilities, or limitations of the transmitting wireless device. In some examples, the signals may include measurement reports. In some other examples, the signals may include reference signals such as sync or beam reference signals such as channel state information - reference signals (CSI-RS).

The wireless device <NUM> may then transmit and/or receive communications based on the power configurations and the duplex mode.

<FIG> illustrates an example of a communication flow <NUM> in a wireless communication system that supports duplexing modes based on power configurations for transmissions in accordance with various aspects of the present disclosure. In some examples, the wireless communication system may implement aspects of wireless communication system <NUM>.

The communication flow <NUM> shows communications between a first wireless device <NUM> and a second wireless device <NUM>. In some examples, the first wireless device <NUM> may be an example of aspects of a UE <NUM> and/or a base station <NUM> as described with reference to <FIG>. In some examples, the second wireless device <NUM> may be an example of aspects of a UE <NUM> and/or a base station <NUM> as described with reference to <FIG>.

The first wireless device <NUM> may determine power configurations for communications with one or more wireless devices in the wireless communication system including at least the second wireless device at <NUM>. The power configurations may include, for example, a power level. In some examples, the power configurations may be determined based on a type of signal or a type of channel being received and/or transmitted. For example, some channels (such as a PDCCH or a PUCCH) may operate without a high link budget and/or SINR. Accordingly, signals on these channels may be transmitted using a low MCS, and as such may be transmitted with a low power level.

In some examples, a low power level may be used for control signals and/or control channels, and a high power level may be used for data signals and/or data channels.

In some examples, the power configurations may be determined based on parameters of the first wireless device <NUM> and/or the second wireless device <NUM>. For example, the power configurations may be determined based on the capabilities of the first wireless device <NUM> and/or the second wireless device <NUM>, e.g., analog or digital processing capabilities, beamforming capabilities, number of antennas, number of digital chains, beam-correspondence capabilities. In some examples, the power configurations may be based on transmission power capabilities of the first wireless device <NUM> and/or the second wireless device <NUM>. In some examples, the power configurations may be determined based on a location or relative location of the first wireless device <NUM> and/or the second wireless device <NUM> (e.g., angular direction or distance, which may correspond to pathloss).

The first wireless device <NUM> may determine a first duplex mode for the transmissions at <NUM>. The duplex mode may be, for example, a full duplex mode, in which the first wireless device <NUM> may transmit and receive in the same time resources in the same TTI. In some other examples, the duplex mode may be, for example, a half-duplex mode, in which the first wireless device <NUM> may either transmit or receive, but not both, in the same time resources in the same TTI. The half-duplex mode may be, for example, a reception mode or a transmission mode. The half-duplex mode may also be a SU-MIMO mode or a MU-MIMO mode.

The first duplex mode may be determined based on the power configurations, e.g., a power level. In some examples, control channels may be configured with a wide beam and data channels may be transmitted using a narrow beam. The beam width threshold may be set such that control signals may be transmitted according to a full duplex mode and data signals may be transmitted according to a half-duplex mode.

The first wireless device <NUM> may transmit and/or receive first duplexing mode communications <NUM> based on the power configurations and the first duplex mode. For example, the first wireless device <NUM> may transmit control signals at a low power level and receive control signals at a low power level. In some other examples, the first wireless device <NUM> may either receive or transmit data signals at a high power level.

After transmitting the first duplexing mode communications <NUM>, the parameters used to determine the power configurations may change. For example, the communications between the first wireless device <NUM> and the second wireless device <NUM> may switch from a first type of signal or channel (e.g., a control signal or control channel) to a second type of signal or channel (e.g., a data signal or data channel). In other examples, parameters associated with the first wireless device <NUM> and/or the second wireless device <NUM> may change (e.g., because the location or relative location of the wireless devices has changed).

The first wireless device <NUM> may determine a change in the power configuration at <NUM>. The first wireless device <NUM> may determine the new power configurations as discussed with respect to the determination of the original power configurations at <NUM>. The first wireless device <NUM> may determine a second duplex mode based on the new power configurations at <NUM>. The first wireless device <NUM> may determine the second duplex mode as discussed with respect to the determination of the first duplex mode at <NUM>. The first wireless device <NUM> may then transmit and/or receive second duplexing mode communications <NUM> based on the new power configurations and the second duplex mode. For example, when the first duplex mode is a full duplex mode and the second duplex mode is a half-duplex mode for reception, the first wireless device <NUM> may cease transmission until a new duplex mode is selected.

<FIG> illustrates an example of communications <NUM> in a wireless communication system that supports duplexing modes based on power configurations for transmissions in accordance with various aspects of the present disclosure. In some examples, wireless communication system may implement aspects of wireless communication system <NUM>.

The communications <NUM> may be transmitted in accordance with a TTI <NUM>. The TTI <NUM> may be, for example, a frame or a sub-frame. The TTI <NUM> may include a set of time resources including a first time resource <NUM>, a second time resource <NUM>, and a third time resource <NUM>. The time resources may be, for example, slots or mini-slots or a number of symbols. In some examples, first time resource <NUM> and third time resource <NUM> may be control slots, and second time resource <NUM> may be a data slot.

The communications <NUM> may include a first transmission stream <NUM> and a second transmission stream <NUM>. The first transmission stream <NUM> shows transmissions by a first wireless device, which may be an example of aspects of first wireless device <NUM> described with reference to <FIG>. The second transmission stream <NUM> shows transmissions by a second wireless device, which may be an example of aspects of second wireless device <NUM> described with reference to <FIG>.

The first wireless device may recognize that the communications in the first time resource <NUM> may be transmitted and/or received over a control channel. Accordingly, the first wireless device may determine that the communications in the first time resource <NUM> may be transmitted and/or received using a low power level, and may select a full duplex mode for the first time resource <NUM>. The first wireless device may transmit a control signal <NUM> in the first time resource <NUM>. The control signal <NUM> may be, for example, a scheduling grant which grants the second time resource <NUM> to the second wireless device. The control signal <NUM> may be transmitted using a low power level.

The second wireless device may likewise select a full duplex mode for the first time resource <NUM>. The second wireless device may accordingly transmit a control signal <NUM> in the first time resource <NUM>. The control signal <NUM> may be, for example, a scheduling request. The control signal <NUM> may be transmitted using a low power level. In some other examples, the second wireless device may select a half-duplex mode for the first time resource <NUM> based on the power configurations at the second wireless device, and may not transmit the control signal <NUM>.

The first wireless device may recognize that the communications in the second time resource <NUM> may be transmitted and/or received over a data channel. Accordingly, the first wireless device may determine that the communications in the second time resource <NUM> may be transmitted and/or received using a high power level, and may select a half-duplex mode. The first wireless device may select a half-duplex reception mode based on the scheduling grant in the control signal <NUM>. The first wireless device may accordingly refrain from transmitting during the second time resource <NUM>.

In some examples, the half-duplex reception mode may be a MU-MIMO mode, in which the first wireless device may serve two or more wireless devices (including the second wireless device) simultaneously. In some other examples, the half-duplex reception mode may be a SU-MIMO mode, in which the first wireless device may serve only the second wireless device with an increased data rate.

The second wireless device may likewise select a half-duplex mode for the second time resource <NUM>. However, the second wireless device may select a half-duplex transmission mode based on the scheduling grant in the control signal <NUM>. The second wireless device may accordingly transmit a data signal <NUM> in the second time resource <NUM>. The data signal <NUM> may be transmitted using a high power level.

In some examples, the half-duplex mode may be a MU-MIMO transmission mode, in which the second wireless device may serve two or more wireless devices (including the first wireless device) simultaneously. In some other examples, the half-duplex transmission mode may be a SU-MIMO mode, in which the second wireless device may serve only the first wireless device with an increased data rate.

The first wireless device may recognize that the communications in the third time resource <NUM> may be transmitted and/or received over a control channel. Accordingly, the first wireless device may determine that the communications in the third time resource <NUM> may be transmitted and/or received using a low power level, and may select a full duplex mode for the third time resource <NUM>. The first wireless device may transmit a control signal <NUM> in the third time resource <NUM>. The control signal <NUM> may be, for example, an acknowledgement (ACK) in response to receiving the data signal <NUM>. In some other examples, the control signal <NUM> may be a negative acknowledgement (NACK) in response to not receiving the data signal <NUM>. The control signal <NUM> may be transmitted at a low power level.

The second wireless device may likewise select a full duplex mode for the third time resource <NUM>. The second wireless device may accordingly transmit a control signal <NUM> in the third time resource <NUM>. The control signal <NUM> may be, for example, a scheduling request for another data transmission. The control signal <NUM> may be transmitted using a low power level.

Although communications in this example, and throughout this application, have been described with reference to a first wireless device and a second wireless device, it should be understood that the techniques described herein may be used for communications between a first wireless device and one or more other wireless nodes in a communication system. For example, a first wireless device operating in full-duplex mode may transmit a control signal to a second wireless device and receive a control signal from a third wireless device. In such examples, the second and/or third wireless devices may be operating in a half-duplex mode, e.g., the second wireless device may be operating in a half-duplex reception mode and the third wireless device may be operating in a half-duplex transmission mode.

<FIG> illustrates an example of frame structures <NUM> that support duplexing modes based on power configurations for transmissions in accordance with various aspects of the present disclosure. The frame structures <NUM> may include a first frame structure <NUM> and a second frame structure <NUM>.

The first frame structure <NUM> may include a first joint downlink control block (DLCB)/uplink control block (ULCB) region <NUM>, a data region <NUM>, and a second joint DLCB/ULCB region <NUM>. A scheduling node (e.g., a base station <NUM> or a UE <NUM> as described with reference to <FIG>) may transmit downlink control information (DCI) to one or more scheduled nodes (e.g., UEs <NUM> as described with reference to <FIG>) in the first joint DLCB/ULCB region <NUM>. The scheduling node may also receive uplink control information (UCI) from one or more scheduled nodes in the first joint DLCB/ULCB region <NUM>. Uplink control transmissions may be scheduled (e.g., in an earlier downlink control transmission). The group of scheduled nodes that receive DCI may not be the same as the group of scheduled nodes that transmits UCI. In some examples, the DCI may include a scheduling grant for one or more of the scheduled nodes in the data region <NUM>. DCI and UCI may be transmitted in the second DLCB/ULCB region <NUM>. In some other examples, the second DLCB/ULCB region <NUM> may be omitted.

The second frame structure <NUM> may include a first common control block (CCB) region <NUM>, a data region <NUM>, and a second CCB region <NUM>. The second frame structure <NUM> may be used for a flat device-to-device network. The first and/or second CCB regions <NUM> and <NUM> may be used to transmit control signals and/or control channels. The control signals and/or control channels may include an indication of an upcoming transmission such as a scheduling grant. For example, first CCB region <NUM> may be used to transmit a scheduling grant for the data region <NUM>. In other examples, the control signals and/or control channels may include a request for some transmission (e.g., a scheduling grant), an acknowledgement, or an indication of a change in the transmission schedule.

<FIG> shows a block diagram <NUM> of a wireless device <NUM> that supports duplexing modes based on power configurations for transmissions in accordance with aspects of the present disclosure. Wireless device <NUM> may be an example of aspects of a wireless device <NUM> as described herein. Wireless device <NUM> may include receiver <NUM>, communications manager <NUM>, and transmitter <NUM>. Wireless device <NUM> may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

Receiver <NUM> may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to duplexing modes based on power configurations for transmissions, etc.). Information may be passed on to other components of the device. The receiver <NUM> may be an example of aspects of the transceiver <NUM> described with reference to <FIG>. The receiver <NUM> may utilize a single antenna or a set of antennas.

Communications manager <NUM> may be an example of aspects of the communications manager <NUM> described with reference to <FIG>.

Communications manager <NUM> and/or at least some of its various sub-components may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions of the communications manager <NUM> and/or at least some of its various sub-components may be executed by a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure. The communications manager <NUM> and/or at least some of its various sub-components may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations by one or more physical devices. In some examples, communications manager <NUM> and/or at least some of its various sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure. In other examples, communications manager <NUM> and/or at least some of its various sub-components may be combined with one or more other hardware components, including but not limited to an I/O component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.

Communications manager <NUM> may identify a set of power configurations for a set of communications with at least one target device, determine a duplexing mode for the set of communications based on the identified set of power configurations, and communicate with the at least one target device based on the identified set of power configurations and the determined duplexing mode. The communications manager <NUM> may also allocate power between the target device and the second target device based on the set of power configurations.

<FIG> shows a block diagram <NUM> of a wireless device <NUM> that supports duplexing modes based on power configurations for transmissions in accordance with aspects of the present disclosure. Wireless device <NUM> may be an example of aspects of a wireless device <NUM> or a wireless device <NUM> as described with reference to <FIG>. Wireless device <NUM> may include receiver <NUM>, communications manager <NUM>, and transmitter <NUM>. Wireless device <NUM> may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

Communications manager <NUM> may be an example of aspects of the communications manager <NUM> described with reference to <FIG>. Communications manager <NUM> may also include power configuration identifier <NUM>, duplex mode determination unit <NUM>, and duplex mode communication manager <NUM>.

Power configuration identifier <NUM> may identify a set of power configurations for a set of communications with at least one target device.

Duplex mode determination unit <NUM> may determine a duplexing mode for the set of communications based on the identified set of power configurations. In some cases, the duplexing mode is determined based on a level of traffic demand, capabilities associated with one or more devices, limitations associated with one or more devices, received measurement reports of one or more reference signals, or a combination thereof. In some cases, the reference signals include at least one of a synchronization signal, a beam reference signal, or a combination thereof. In some cases, determining the duplexing mode includes: receiving an indication of the duplexing mode for the set of communications. In some cases, the duplexing mode is selected by a control node. In some cases, the control node includes at least one of a central node, a scheduling device of the wireless device, the at least one target device, or any combination thereof. In some cases, the duplexing mode includes at least one of a full duplex mode, half duplex mode, SU-MIMO mode, MU-MIMO mode, or a combination thereof.

Duplex mode communication manager <NUM> may communicate with the at least one target device based on the identified set of power configurations and the determined duplexing mode, communicate a second set of channels, where the second set of channels is a set of data channels, in a second set of time resources of the TTI according to a second duplexing mode, communicate with the at least one target device according to a full duplex mode, communicate a first set of channels, where the first set of channels is a set of control channels, in a first set of time resources of a TTI according to a first duplexing mode, receive a second control channel in at least one of the uplink direction or the downlink direction in the first set of time resources of the TTI, transmit a first control channel to a second wireless device in a first set of time resources of a TTI, receive a second control channel from the second wireless device in the first set of time resources of the TTI, and transmit a first control channel in at least one of a downlink direction or an uplink direction in a first set of time resources of a TTI. In some cases, the transmission of control channels is unscheduled in the first set of time resources of the TTI. In some cases, the first duplexing mode is a full duplex mode and the second duplexing mode is a half-duplex mode. In some cases, the transmissions of control channels are scheduled in a downlink direction or an uplink direction in the first time resource of the TTI.

<FIG> shows a block diagram <NUM> of a communications manager <NUM> that supports duplexing modes based on power configurations for transmissions in accordance with aspects of the present disclosure. The communications manager <NUM> may be an example of aspects of a communications manager <NUM>, a communications manager <NUM>, or a communications manager <NUM> described with reference to <FIG>, <FIG>, and <FIG>. The communications manager <NUM> may include power configuration identifier <NUM>, duplex mode determination unit <NUM>, duplex mode communication manager <NUM>, signal type identifier <NUM>, capability identifier <NUM>, traffic demand identifier <NUM>, and device parameter identifier <NUM>. Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses).

Duplex mode communication manager <NUM> may communicate with the at least one target device based on the identified set of power configurations and the determined duplexing mode, communicate one or more data channels in a second set of time resources of the TTI according to a second duplexing mode, communicate with the at least one target device according to a full duplex mode, communicate a first set of channels, where the first set of channels is a set of control channels, in a first set of time resources of a TTI according to a first duplexing mode, receive a second control channel in at least one of the uplink direction or the downlink direction in the first set of time resources of the TTI, transmit a first control channel to a second wireless device in a first set of time resources of a TTI, receive a second control channel from the second wireless device in the first set of time resources of the TTI, and transmit a first control channel in at least one of a downlink direction or an uplink direction in a first set of time resources of a TTI. In some cases, the transmission of control channels are unscheduled in the first set of time resources of the TTI. In some cases, the first duplexing mode is a full duplex mode and the second duplexing mode is a half-duplex mode. In some cases, the transmissions of control channels are scheduled in a downlink direction or an uplink direction in the first time resource of the TTI.

Signal type identifier <NUM> may identify a signal type or channel type associated with the set of communications, where the set of power configurations is identified based on the identified signal type or channel type.

Capability identifier <NUM> may identify one or more parameters associated with a capability of the wireless device or with a capability of the at least one target device, where the set of power configurations is identified based on the identified one or more parameters.

Traffic demand identifier <NUM> may identify a level of traffic demand of the wireless device, the at least one target device, or an additional device, where the set of power configurations is identified based on the identified level of traffic demand.

Device parameter identifier <NUM> may identify one or more parameters associated with one or more wireless communication links between the wireless device and the at least one target device, where the set of power configurations is identified based on the identified one or more parameters.

<FIG> shows a diagram of a system <NUM> including a device <NUM> that supports duplexing modes based on power configurations for transmissions in accordance with aspects of the present disclosure. Device <NUM> may be an example of or include the components of wireless device <NUM>, wireless device <NUM>, or a wireless device <NUM> as described above, e.g., with reference to <FIG> and <FIG>. Device <NUM> may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including communications manager <NUM>, processor <NUM>, memory <NUM>, software <NUM>, transceiver <NUM>, antenna <NUM>, and I/O controller <NUM>. These components may be in electronic communication via one or more buses (e.g., bus <NUM>).

Processor <NUM> may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a central processing unit (CPU), a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor <NUM> may be configured to operate a memory array using a memory controller. In other cases, a memory controller may be integrated into processor <NUM>. Processor <NUM> may be configured to execute computer-readable instructions stored in a memory to perform various functions (e.g., functions or tasks supporting duplexing modes based on power configurations for transmissions).

Software <NUM> may include code to implement aspects of the present disclosure, including code to support duplexing modes based on power configurations for transmissions. Software <NUM> may be stored in a non-transitory computer-readable medium such as system memory or other memory. In some cases, the software <NUM> may not be directly executable by the processor but may cause a computer (e.g., when compiled and executed) to perform functions described herein.

<FIG> shows a flowchart illustrating a method <NUM> for duplexing modes based on power configurations for transmissions in accordance with aspects of the present disclosure. The operations of method <NUM> may be implemented by a wireless device <NUM> or its components as described herein. For example, the operations of method <NUM> may be performed by a communications manager as described with reference to <FIG>. In some examples, a wireless device <NUM> may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally, or alternatively, the wireless device <NUM> may perform aspects of the functions described below using special-purpose hardware.

At <NUM> the wireless device <NUM> may identify a set of power configurations for a set of communications with at least one target device. In some examples, power may be allocated between the target device and a second target device based on the set of power configurations. The operations of <NUM> may be performed according to the methods described herein. In certain examples, aspects of the operations of <NUM> may be performed by a power configuration identifier as described with reference to <FIG>.

At <NUM> the wireless device <NUM> may determine a duplexing mode for the set of communications based on the identified set of power configurations. The operations of <NUM> may be performed according to the methods described herein. In certain examples, aspects of the operations of <NUM> may be performed by a duplex mode determination unit as described with reference to <FIG>.

At <NUM> the wireless device <NUM> may communicate with the at least one target device based on the identified set of power configurations and the determined duplexing mode. The operations of <NUM> may be performed according to the methods described herein. In certain examples, aspects of the operations of <NUM> may be performed by a duplex mode communication manager as described with reference to <FIG>.

By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.

As used herein, including in the claims, "or" as used in a list of items (e.g., a list of items prefaced by a phrase such as "at least one of" or "one or more of') indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (e.g., A and B and C).

Claim 1:
A method (<NUM>) for wireless communication at a wireless device,
comprising:
determining (<NUM>) a first duplexing mode for communications with at least one target device via a first set of time resources of a transmission time interval, TTI;
determining (<NUM>) a second duplexing mode for communications with the at least one target device via a second set of time resources of the TTI;
communicating a first channel in the first set of time resources of the TTI according to the first duplexing mode; and
communicating a second channel in the second set of time resources of the TTI according to the second duplexing mode.