Patent Description:
Typical wireless communication systems may employ multiple-access technologies capable of supporting communications with multiple users by sharing available system resources (e.g., time, frequency, power, and/or spectrum). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA).

An example telecommunication standard is Long Term Evolution (LTE) or LTE-Advanced (LTE-A). However, although newer multiple access systems, such as an LTE or LTE-A system, deliver faster data throughput than older technologies, such increased downlink rates have triggered a greater demand for higher-bandwidth content, such as high-resolution graphics and video, for use on or with mobile devices. As such, demand for bandwidth, higher data rates, better transmission quality as well as better spectrum utilization, and lower latency on wireless communication systems continues to increase.

The 5th Generation (<NUM>) New Radio (NR) communications technology, used in a wide range of spectrum, is envisaged to expand and support diverse usage scenarios and applications with respect to conventional mobile network generations. In an aspect, <NUM> NR communications technology includes, for example: enhanced mobile broadband (eMBB) addressing human-centric use cases for access to multimedia content, services and data; ultra-reliable low-latency communications (URLLC) with strict requirements, especially in terms of latency and reliability; and massive machine type communications (mMTC) for a very large number of connected devices and typically transmitting a relatively low volume of non-delay-sensitive information. As the demand for mobile broadband access continues to increase, there exists a need for further improvements in <NUM> communications technology and beyond.

Accordingly, due to the requirements for increased data rates, higher capacity, higher spectral efficiency, and lower latency, new or improved approaches may be desirable to enhance uplink transmissions, in order to satisfy consumer demand and improve user experience in wireless communications.

Ericsson, R1-<NUM> relates to designs for two-symbol short PUCCH. Qualcomm Incorporated, R1-<NUM> relates to PUCCH resource allocation.

The invention relates to a method of wireless communications at a user equipment according to claim <NUM>, an apparatus for wireless communications according to claim <NUM>, a method of wireless communications used by a network entity according to claim <NUM> and an apparatus for wireless communications according to claim <NUM>.

In order to facilitate a fuller understanding of aspects described herein, reference is now made to the accompanying drawings, in which like elements are referenced with like numerals. These drawings should not be construed as limiting the present disclosure, but are intended to be illustrative only.

In a conventional communications system (e.g., an LTE system), physical resources may be assigned on two resource blocks (RBs) in a subframe. The subframe may comprise fourteen (<NUM>) orthogonal frequency division multiplexing (OFDM) symbols in time domain, and each OFDM symbol has twelve (<NUM>) sub-carriers or tones in frequency domain. In an aspect, an LTE subframe may include uplink (UL) signal and/or downlink (DL) signal, and the UL signal and/or DL signal may be time division multiplexed (TDMed). In an aspect, the subframe may be transmitted in an UL signal having no uplink short burst (ULSB).

In a 5th Generation (<NUM>) New Radio (NR) communications system, every slot or subframe may be mixed with UL and/or DL signals. In some examples, an UL signal may include <NUM> symbols. In some examples, an ULSB may be used, comprising one or two symbols (e.g., OFDM symbols). In an example, the UL signal may include <NUM> or less symbols in an UL long burst and <NUM> symbol in an ULSB. In another example, the UL signal may include <NUM> or less symbols in an UL long burst and <NUM> symbols used in an ULSB. In yet another example, the UL signal may include only a ULSB having one symbol or two symbols and the rest of the symbols in the slot may be used for DL transmission or gap. In some aspects, an UL signal may be a long Physical Uplink Control Channel (PUCCH), or a short PUCCH, or a Physical Uplink Shared Channel (PUSCH), with duration from one (<NUM>) to fourteen (<NUM>) symbols. In some aspects, one or two symbol signals (e.g., one-symbol ULSB or two-symbol ULSB) may be supported or used in UL transmissions. For example, an ULSB including one or two symbols may be used and may carry uplink control information (UCI) or UL data. In an example, the first symbol or second symbol in an ULSB may be a PUCCH, and may be either sequence-based design or frequency division multiplexing (FDM)-based design. In some cases, only one symbol is used in an ULSB. In some other cases, when using two-symbol ULSB, the configuration and format used for the second symbol may need to be defined. As such, new approaches or schemes may be desired to design and configure the two-symbol UL signals (e.g., a two-symbol ULSB).

These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements").

Accordingly, in one or more aspects, the functions described may be implemented in hardware, software, firmware, or any combination thereof. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Disk and disc, as used herein, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), and floppy disk where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.

Described herein are various aspects related to a wireless communication system (e.g., a <NUM> NR system), in particular, techniques for one-symbol or two-symbol uplink transmissions. In some aspects, a one-symbol or two-symbol uplink signal (e.g., an ULSB) may carry some control information (e.g., UCI, which may be considered as critical information). In an aspect, different formats may be used for the one-symbol or two-symbol uplink signal. For example, Format <NUM> may be used, having <NUM> or <NUM> bits configured for UCI. In another example, Format <NUM> may be used, having at least <NUM> bits configured for UCI. In one implementation, when using Format <NUM>, <NUM> bit (e.g., "<NUM>" or "<NUM>") of one symbol or each of the two symbols may be configured for the UCI to indicate "ACK" or "NACK" for signal transmissions (e.g., hybrid automatic repeat request (HARQ) transmissions). In some cases, for two-symbol design, both symbols may use Format <NUM> with each symbol having a <NUM>-bit indication.

In some aspects, the one-symbol UL signal, or the first symbol of the two-symbol uplink signal may either use sequence-based design or FDM-based design. For example, for sequence-based design, the data tones of the symbol may use different sequences compared with the sequences used for the reference signals (e.g., demodulation reference signals (DMRSs)) of the symbol. In some implementations, the sequences discussed herein may be Chu sequences or computer generated sequences (CGS) with low PAPR property for sequence based design, e.g., Format <NUM>, or Pseudo-random sequences for FDM based design for Format <NUM>. In some cases, for FDM-based design, the data tones of the symbol may use different frequencies compared with the frequencies used by the reference signals (e.g., DMRSs) of the symbol.

Each of the aspects described above are performed or implemented in connection with <FIG>, which are described in more detail below.

Referring to <FIG>, <FIG>, and <FIG>, in an aspect, a wireless communication system (e.g., wireless communication system or network <NUM>, <NUM>', or <NUM>") includes at least one UE <NUM> or UE <NUM> in communication coverage of at least one network entity <NUM> (e.g., a base station or gNB, or a cell thereof, in a <NUM> NR network). UE <NUM> and/or UE <NUM> may communicate with a network via the network entity <NUM>. In some aspects, multiple UEs including at least the UE <NUM> and/or UE <NUM> may be in communication coverage with one or more network entities, including network entity <NUM>. In an aspect, the network entity <NUM> may be a base station such as a gNB in a <NUM> NR network. Although various aspects are described in relation to the Universal Mobile Telecommunications System (UMTS), LTE, or <NUM> NR networks, similar principles may be applied in other wireless wide area networks (WWAN). The wireless network may employ a scheme where multiple UEs may transmit on a channel. In an example, the UE <NUM> and/or UE <NUM> may transmit and/or receive wireless communications to and/or from the network entity <NUM>. For example, the UE <NUM> and/or UE <NUM> may be actively communicating with the network entity <NUM>.

In some aspects, the UE <NUM> and/or UE <NUM> may also be referred to by those skilled in the art (as well as interchangeably herein) as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a terminal, a user agent, a mobile client, a client, or some other suitable terminology. A UE <NUM> and/or UE <NUM> may be a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a global positioning system (GPS) device, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a wearable computing device (e.g., a smart-watch, smart-glasses, a health or fitness tracker, etc.), an appliance, a sensor, a vehicle communication system, a medical device, a vending machine, a device for the Intemet-of-Things (IoT), or any other similar functioning device. Additionally, a UE <NUM> or <NUM> may be a machine-to-machine (M2M) type of device, e.g., a low power, low data rate (relative to a wireless phone, for example) type of device, that may in some aspects communicate infrequently with a wireless communication network or other UEs. A UE <NUM> or <NUM> may be able to communicate with various types of network entities <NUM> and network equipment including macro eNBs, small cell eNBs, macro gNBs, small cell gNBs, relay base stations, and the like.

Moreover, the network entity <NUM> may be a macrocell, picocell, femtocell, relay, Node B, mobile Node B, small cell box, UE (e.g., communicating in peer-to-peer or ad-hoc mode with the UE <NUM> and/or UE <NUM>), or substantially any type of component that can communicate with the UE <NUM> and/or UE <NUM> to provide wireless network access to the UE <NUM> and/or UE <NUM>. In some examples, the network entity <NUM> may be referred to as a base transceiver station, a radio base station, an access point (AP), an access node (AN), a radio transceiver, an eNodeB (eNB), a gNB, a Home NodeB, a Home eNodeB, a relay, or some other suitable terminology.

Referring to <FIG>, in accordance with various aspects of the present disclosure, an example of a wireless communication network <NUM>, such as a <NUM> NR network, includes at least one UE <NUM> (or UE <NUM>) with a modem <NUM> having a uplink management component <NUM> that enables UE <NUM> to exchange signaling with a modem <NUM> and a communication management component <NUM> of at least one network entity <NUM> (e.g., a gNB).

The wireless communication network <NUM> may include one or more network entities <NUM>, one or more UEs <NUM> or <NUM>, and a core network <NUM>. The core network <NUM> may provide user authentication, access authorization, tracking, internet protocol (IP) connectivity, and other access, routing, or mobility functions. The network entities <NUM> may interface with the core network <NUM> through backhaul links <NUM> (e.g., S1, etc.). The network entities <NUM> may perform radio configuration and scheduling for communication with the UEs <NUM> or <NUM>, or may operate under the control of a base station controller (not shown). In various examples, the network entities <NUM> may communicate, either directly or indirectly (e.g., through core network <NUM>), with one another over backhaul links <NUM> (e.g., X1, etc.), which may be wired or wireless communication links.

The network entities <NUM> may wirelessly communicate with the UEs <NUM> or <NUM> via one or more antennas <NUM>. Each of the network entities <NUM> may provide communication coverage for a respective geographic coverage area <NUM>. In some cases, the geographic coverage area <NUM> for a network entity <NUM> may be divided into sectors or cells making up only a portion of the coverage area (not shown). The wireless communication network <NUM> may include network entities <NUM> of different types (e.g., macro base stations or small cell base stations, described below). Additionally, the plurality of network entities <NUM> may operate according to different ones of a plurality of communication technologies (e.g., <NUM> NR", LTE, Wi-Fi, Bluetooth, etc.), and thus there may be overlapping geographic coverage areas <NUM> for different communication technologies.

In some examples, the wireless communication network <NUM> may be or include one or any combination of communication technologies, including a <NUM> NR technology, an LTE or LTE-Advanced (LTE-A) or MuLTEfire technology, a Wi-Fi technology, a Bluetooth technology, or any other long or short range wireless communication technology. In <NUM> NR, the term gNB may be generally used to describe the network entities <NUM>, while the term UE may be generally used to describe the UEs <NUM> or <NUM>. The wireless communication network <NUM> may be a heterogeneous technology network in which different types of eNBs or gNBs provide coverage for various geographical regions. For example, each network entity <NUM> or gNB may provide communication coverage for a macro cell, a small cell, or other types of cell. The term "cell" is a 3GPP term that may be used to describe a base station, a carrier, or component carrier (CC) associated with a base station, or a coverage area (e.g., sector, etc.) of a carrier or base station, depending on context.

A macro cell may generally cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs <NUM> or <NUM> with service subscriptions with the network provider.

A small cell may include a relative lower transmit-powered base station, as compared with a macro cell, that may operate in the same or different frequency bands (e.g., licensed, unlicensed, etc.) as macro cells. A pico cell, for example, may cover a small geographic area and may allow unrestricted access by UEs <NUM> or <NUM> with service subscriptions with the network provider. A femto cell may also cover a small geographic area (e.g., a home) and may provide restricted access and/or unrestricted access by UEs <NUM> or <NUM> having an association with the femto cell (e.g., in the restricted access case, UEs <NUM> or <NUM> in a closed subscriber group (CSG) of the network entity <NUM>, which may include UEs <NUM> or <NUM> for users in the home, and the like).

The communication networks that may accommodate some of the various disclosed examples may be packet-based networks that operate according to a layered protocol stack and data in the user plane may be based on internet protocol (IP). A user plane protocol stack (e.g., packet data convergence protocol (PDCP), radio link control (RLC), media access control (MAC), etc.), may perform packet segmentation and reassembly to communicate over logical channels. For example, a MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use hybrid automatic repeat/request (HARQ) to provide retransmission at the MAC layer to improve link efficiency. In the control plane, radio resource control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE <NUM> or <NUM> and the network entities <NUM>. The RRC protocol layer may also be used for core network <NUM> support of radio bearers for the user plane data. At the physical (PHY) layer, the transport channels may be mapped to physical channels.

The UEs <NUM> or <NUM> may be dispersed throughout the wireless communication network <NUM>, and each UE <NUM> or <NUM> may be stationary or mobile. The UE <NUM> or <NUM> may be configured to establish one or more wireless communication links <NUM> with one or more network entities <NUM>. The wireless communication links <NUM> shown in wireless communication network <NUM> may carry uplink (UL) transmissions from a UE <NUM> or <NUM> to a network entity <NUM>, or downlink (DL) transmissions, from a network entity <NUM> to a UE <NUM> or <NUM>. The downlink transmissions may also be called forward link transmissions while the uplink transmissions may also be called reverse link transmissions. Each wireless communication link <NUM> may include one or more carriers, where each carrier may be a signal made up of multiple sub-carriers (e.g., waveform signals of different frequencies) modulated according to the various radio technologies described above. Each modulated signal may be sent on a different sub-carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, user data, etc. In an aspect, the wireless communication links <NUM> may transmit bidirectional communications using frequency division duplex (FDD) (e.g., using paired spectrum resources) or time division duplex (TDD) operation (e.g., using unpaired spectrum resources). Frame structures may be defined for FDD (e.g., frame structure type <NUM>) and TDD (e.g., frame structure type <NUM>). Moreover, in some aspects, the wireless communication links <NUM> may represent one or more broadcast channels.

In some aspects of the wireless communication network <NUM>, network entities <NUM> or UEs <NUM> or <NUM> may include multiple antennas <NUM> for employing antenna diversity schemes to improve communication quality and reliability between network entities <NUM> and UEs <NUM> or <NUM>. Additionally or alternatively, network entities <NUM> or UEs <NUM> or <NUM> may employ multiple input multiple output (MIMO) techniques that may take advantage of multi-path environments to transmit multiple spatial layers carrying the same or different coded data.

Wireless communication network <NUM> may support operations on multiple cells or carriers, a feature which may be referred to as carrier aggregation (CA) or multi-carrier operation. A carrier may also be referred to as a component carrier (CC), a layer, a channel, etc. The terms "carrier," "component carrier," "cell," and "channel" may be used interchangeably herein. A UE <NUM> or <NUM> may be configured with multiple downlink CCs and one or more uplink CCs for carrier aggregation. The network entities <NUM> and UEs <NUM> or <NUM> may use spectrum up to Y MHz (e.g., Y = <NUM>, <NUM>, <NUM>, or <NUM>) bandwidth per carrier allocated in a carrier aggregation of up to a total of Yx MHz (x = number of component carriers) used for transmission in each direction. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or less carriers may be allocated for DL than for UL).

The wireless communication network <NUM> may further include network entities <NUM> operating according to Wi-Fi technology, e.g., Wi-Fi access points, in communication with UEs <NUM> or <NUM> operating according to Wi-Fi technology, e.g., Wi-Fi stations (STAs) via communication links in an unlicensed frequency spectrum (e.g., <NUM>). When communicating in an unlicensed frequency spectrum, the STAs and AP may perform a clear channel assessment (CCA) or listen before talk (LBT) procedure prior to communicating in order to determine whether the channel is available.

Additionally, one or more of network entities <NUM> and/or UEs <NUM> or <NUM> may operate (according to <NUM> NR) at millimeter wave (mmW or mm-wave). For example, mmW technology includes transmissions in mmW frequencies and/or near mmW frequencies. Extremely high frequency (EHF) is part of the radio frequency (RF) in the electromagnetic spectrum. For example, the super high frequency (SHF) band extends between <NUM> and <NUM>, and may also be referred to as centimeter wave. Communications using the mmW and/or near mmW radio frequency band has extremely high path loss and a short range. As such, network entities <NUM> and/or UEs <NUM> or <NUM> operating according to the mmW technology may utilize beamforming in their transmissions to compensate for the extremely high path loss and short range.

According to the present aspects, referring to <FIG>, in a wireless communication system <NUM>', the UE <NUM> and/or UE <NUM> may include one or more processors <NUM> and a memory <NUM> that may operate in combination with an uplink management component <NUM> to control a symbol generating component <NUM>, a hopping management component <NUM>, and/or a DMRS management component <NUM> for performing uplink management and transmissions as described herein.

For example, the uplink management component <NUM> may be configured to generate one-symbol or two-symbol UL signals and transmit from the UE (e.g., UE <NUM> or UE <NUM>) to a network entity (e.g., network entity <NUM>), and/or perform related UL signal management or operations. In an aspect, the term "component" as used herein may be one of the parts that make up a system, may be hardware, firmware, and/or software, and may be divided into other components. The uplink management component <NUM> may be communicatively coupled with a transceiver <NUM>, which may include a receiver <NUM> for receiving and processing radio frequency (RF) signals and a transmitter <NUM> for processing and transmitting RF signals.

In some aspects, the uplink management component <NUM> may include the symbol generating component <NUM>, hopping management component <NUM>, and/or DMRS management component <NUM> for performing uplink management and transmissions. For example, the symbol generating component <NUM> may be configured to generate one or two symbols using a predetermined format for UL transmissions. In an example, the hopping management component <NUM> may be configured to create diversity via using configurable hopping (frequency hopping and/or sequence hopping) for the symbol(s). In an example, the DMRS management component <NUM> may be configured to manage or identify the DMRS in the symbols for UL transmissions. The processor <NUM> may be communicatively coupled with the transceiver <NUM> and memory <NUM> via at least one bus <NUM>.

The receiver <NUM> may include hardware, firmware, and/or software code executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium, or non-transitory computer-readable storage medium). The receiver <NUM> may be, for example, a RF receiver. In an aspect, the receiver <NUM> may receive signals transmitted by another UE or network entity <NUM>. The receiver <NUM> may obtain measurements of the signals, e.g., signal-to-noise ratio (SNR).

The transmitter <NUM> may include hardware, firmware, and/or software code executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium). The transmitter <NUM> may be, for example, a RF transmitter.

In an aspect, the one or more processors <NUM> can include a modem <NUM> that uses one or more modem processors. The various functions related to the Uplink management component <NUM> may be included in modem <NUM> and/or processors <NUM> and, in an aspect, can be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors. For example, in an aspect, the one or more processors <NUM> may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a transceiver processor associated with transceiver <NUM>. In particular, the one or more processors <NUM> may implement components included in the uplink management component <NUM>, including the symbol generating component <NUM>, hopping management component <NUM>, and/or DMRS management component <NUM>.

The uplink management component <NUM>, symbol generating component <NUM>, hopping management component <NUM>, and/or DMRS management component <NUM> may include hardware, firmware, and/or software code executable by a processor for performing random access management and operations. For example, the hardware may include, for example, a hardware accelerator, or specialized processor.

Moreover, in an aspect, the UE <NUM> and/or UE <NUM> may include a RF front end <NUM> and transceiver <NUM> for receiving and transmitting radio transmissions, for example, wireless communications <NUM>. For example, the transceiver <NUM> may receive a signal that includes information of the allocated resources for the UE <NUM> and/or other UEs (e.g., the UE <NUM>). Depending on the UE behavior discussed herein, the transceiver <NUM> may transmit an UL signal having one or more symbols to the network entity <NUM> (e.g., PUSCH, PUCCH, data, or control information such as UCI). For example, the transceiver <NUM> may communicate with modem <NUM> to transmit messages generated by the uplink management component <NUM> and/or to receive messages and forward them to uplink management component <NUM>.

The RF front end <NUM> may be coupled with one or more antennas <NUM> and can include one or more low-noise amplifiers (LNAs) <NUM>, one or more switches <NUM>, <NUM>, <NUM>, one or more power amplifiers (PAs) <NUM>, and one or more filters <NUM> for transmitting and receiving RF signals. In an aspect, components of RF front end <NUM> can be coupled with transceiver <NUM>. The transceiver <NUM> may be coupled with one or more modems <NUM> and processor <NUM>.

In an aspect, the LNA <NUM> can amplify a received signal at a desired output level. In an aspect, the RF front end <NUM> may use one or more switches <NUM>, <NUM> to select a particular LNA <NUM> and a specified gain value based on a desired gain value for a particular application. In an aspect, the RF front end <NUM> may provide measurements (e.g., Energy to Interference Ratio (Ec/Io), Reference Signal Received Quality (RSRQ), Signal to Interference-plus-Noise Ratio (SINR)) and/or apply gain values to the uplink management component <NUM>.

Further, for example, one or more PA(s) <NUM> may be used by the RF front end <NUM> to amplify a signal for an RF output at a desired output power level. In an aspect, each PA <NUM> may have a specified minimum and maximum gain values. In an aspect, RF front end <NUM> may use one or more switches <NUM>, <NUM> to select a particular PA <NUM> and a specified gain value based on a desired gain value for a particular application.

Also, for example, one or more filters <NUM> may be used by the RF front end <NUM> to filter a received signal to obtain an input RF signal. Similarly, in an aspect, for example, a respective filter <NUM> may be used to filter an output from a respective PA <NUM> to produce an output signal for transmission. In an aspect, each filter <NUM> may be connected to a specific LNA <NUM> and/or PA <NUM>. In an aspect, the RF front end <NUM> may use one or more switches <NUM>, <NUM>, <NUM> to select a transmit or receive path using a specified filter <NUM>, LNA, <NUM>, and/or PA <NUM>, based on a configuration as specified by transceiver <NUM> and/or processor <NUM>.

The transceiver <NUM> may be configured to transmit and receive wireless signals through an antenna <NUM> via the RF front end <NUM>. In an aspect, the transceiver may be tuned to operate at specified frequencies such that the UE <NUM> and/or UE <NUM> can communicate with, for example, the network entity <NUM>. In an aspect, for example, the modem <NUM> can configure the transceiver <NUM> to operate at a specified frequency and power level based on the UE configuration of the UE <NUM> and/or UE <NUM> and communication protocol used by modem <NUM>.

In an aspect, the modem <NUM> can be a multiband-multimode modem, which can process digital data and communicate with the transceiver <NUM> such that the digital data is sent and received using the transceiver <NUM>. In an aspect, the modem <NUM> can be multiband and be configured to support multiple frequency bands for a specific communications protocol. In an aspect, the modem <NUM> can be multimode and be configured to support multiple operating networks and communications protocols. In an aspect, the modem <NUM> can control one or more components of the UE <NUM> and/or UE <NUM> or the network entity <NUM> (e.g., RF front end <NUM>, transceiver <NUM>) to enable transmission and/or reception of signals based on a specified modem configuration. In another aspect, the modem configuration can be based on UE configuration information associated with the UE <NUM> and/or UE <NUM> as provided by the network during cell selection and/or cell reselection.

The UE <NUM> and/or UE <NUM> may further include memory <NUM>, such as for storing data used herein, and/or local versions of applications or uplink management component <NUM>, and/or one or more subcomponents of the uplink management component <NUM> being executed by processor <NUM>. The memory <NUM> can include any type of computer-readable medium usable by a computer or processor <NUM>, such as random access memory (RAM), read only memory (ROM), tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof. In an aspect, for example, the memory <NUM> may be a computer-readable storage medium that stores one or more computer-executable codes defining the uplink management component <NUM> and/or one or more of its subcomponents, and/or data associated therewith, when the UE <NUM> and/or UE <NUM> is operating the processor <NUM> to execute the uplink management component <NUM> and/or one or more of the subcomponents of the uplink management component <NUM>. In another aspect, for example, the memory <NUM> may be a non-transitory computer-readable storage medium.

Referring to <FIG>, similarly to <FIG>, in a wireless communication system <NUM>", the network entity <NUM> may include one or more processors <NUM> and a memory <NUM> that may operate in combination with a communication management component <NUM> to control a hopping configuration component <NUM>, a symbol management component <NUM>, and/or a decoder <NUM> for performing uplink management and receptions as described herein.

For example, the communication management component <NUM> may be receive one-symbol or two-symbol UL signals from a UE (e.g., UE <NUM> or UE <NUM>), and/or perform related UL signal management or operations (e.g., decoding the received UL signals). In an aspect, the term "component" as used herein may be one of the parts that make up a system, may be hardware, firmware, and/or software, and may be divided into other components. The communication management component <NUM> may be communicatively coupled with a transceiver <NUM>, which may include a receiver <NUM> for receiving and processing RF signals and a transmitter <NUM> for processing and transmitting RF signals, which are similar to the components in <FIG>.

In some aspects, for example, the communication management component <NUM> may include the hopping configuration component <NUM>, symbol management component <NUM>, and/or decoder <NUM> for performing uplink management and receptions. For example, the hopping configuration component <NUM> may configure hopping (frequency hopping and/or sequence hopping) for the UE to generate symbol(s) (via symbol management component <NUM>) for UL transmissions. In an aspect, the hopping configuration component <NUM> may transmit, via transmitter <NUM>, hopping information (e.g., the hopping configuration) to the UE <NUM> or <NUM> to indicate whether hopping is enabled or disabled, and/or to indicate the hopping is frequency hopping or sequence hopping. In an example, the symbol management component <NUM> may be configured to receive one or more symbols in an UL signal. In another example, the decoder <NUM> may be configured decode the received one or more UL symbols based on at least one predetermined format. The processor <NUM> may be communicatively coupled with the transceiver <NUM> and memory <NUM> via at least one bus <NUM>.

Moreover, in an aspect, the network entity <NUM> may include a RF front end <NUM> and transceiver <NUM> for receiving and transmitting radio transmissions, for example, wireless communications <NUM>. For example, the transceiver <NUM> may transmit a signal that includes information of the allocated resources for the UE <NUM> and/or other UEs (e.g., the UE <NUM>). The transceiver <NUM> may receive an UL signal having one or more symbols from the UE <NUM> or <NUM> (e.g., PUSCH, PUCCH, data, or control information such as UCI). In some examples, the transceiver <NUM> may communicate with modem <NUM> to transmit messages generated by the communication management component <NUM> and/or to receive messages and forward them to communication management component <NUM>.

The RF front end <NUM> may be coupled with one or more antennas <NUM> and can include one or more LNAs <NUM>, one or more switches <NUM>, <NUM>, <NUM>, one or more PAs <NUM>, and one or more filters <NUM> for transmitting and receiving RF signals. In an aspect, components of RF front end <NUM> can be coupled with transceiver <NUM>. The transceiver <NUM> may be coupled with one or more modems <NUM> and processor <NUM>.

Referring to <FIG>, in an aspect, for example, an UL transmission scheme <NUM> may be used for UL transmissions by a UE (e.g., UE <NUM> or UE <NUM> in <FIG>, <FIG>, or <FIG>) to a network entity (e.g., network entity <NUM> in <FIG>, <FIG>, or <FIG>). In an aspect, the UE may monitor, detect, or receive a DL signal <NUM>, for example, a DL control channel such as physical downlink control channel (PDCCH). In some examples, the DL signal <NUM> may include DL control information (DCI), and/or resource allocation for Physical Downlink Shared Channel (PDSCH), PUSCH, and/or PUCCH. In some cases, there may be a gap <NUM> (a time period) between the DL signal <NUM> and the next signal.

In an aspect, for example, after the gap <NUM>, the UE may generate and transmit one or more UL symbols. In an example, the UE may generate an ULSB <NUM> including one or two symbols, and may transmit the ULSB <NUM> alone without an UL long burst. In another example, the UE may generate and transmit an UL long burst <NUM> after the gap <NUM>, as shown in <FIG>. In some cases, the UL long burst <NUM> may include <NUM> or <NUM> symbols, and may carry data, PUSCH, and/or PUCCH (including UCI). In some cases, one or two symbols may form an ULSB <NUM>, which may be configured to be transmit before the UL long burst <NUM>, in between two UL long bursts (e.g., between two <NUM>-symbol UL long bursts), or immediately after the UL long burst <NUM> (e.g., can be considered as the last two symbols of an UL signal having <NUM> symbols). In an example, the ULSB <NUM> may include a first symbol <NUM> and a second symbol <NUM>. In some cases, the first symbol <NUM> or the second symbol <NUM> may carry PUCCH, PUSCH, and/or PDSCH. In an example, the first symbol <NUM> may have a format that is either sequence-based or FDM-based, as discussed above.

In another aspect, the second symbol <NUM> may be a repetition of the first symbol <NUM>. In an example, the UE may generate the second symbol <NUM> based on the format of the first symbol <NUM>, using a same tone index as shown in <FIG>. In particular, for example, both the first symbol <NUM> and the second symbol <NUM> may have a same fixed or predetermined DMRS tone configuration (or arrangement) based on the tone index, which is known to the UE. In this example, DMRS tones <NUM> in the first symbol <NUM> and DMRS tones <NUM> in the second symbol <NUM> may have same frequency (tone/sub-carrier) locations (e.g., Sub-carrier No. <NUM>, Sub-carrier No. <NUM>, Sub-carrier No. <NUM>, Sub-carrier No. <NUM>), while the other tones/sub-carriers <NUM> and <NUM>, may be used for control information or data transmissions, as shown in <FIG>.

Referring to <FIG>, in an aspect, for example, an UL transmission scheme <NUM> may be used for UL transmissions by the UE (e.g., UE <NUM> or UE <NUM> in <FIG>) to the network entity (e.g., network entity <NUM> in <FIG>). In an aspect, the UE may monitor, detect, or receive a DL signal <NUM>. In some cases, there may be a gap <NUM> (a time period) between the DL signal <NUM> and the next signal.

In some examples, the UE may be configured to enable or enhance diversity (e.g., channel diversity, or interference diversity). In an example, the UE may be configured to perform frequency hopping and/or sequence hopping when generating one or more symbols for UL transmissions. A network entity (e.g., the network entity <NUM>) may enable or disable frequency hopping and/or sequence hopping, for example, based on a predetermined configuration, or a predetermined format used by the UE for UL symbol generation. In an aspect, for frequency hopping, the UE may obtain a RB index from the network entity (e.g., network entity <NUM>), and/or the configurable hopping information, and generate the second symbol <NUM>, for example, using different RBs, and/or different frequency (tone/sub-carrier) locations for reference signals (e.g., DMRS) or data transmissions, based on the obtained information or configurations. For instance, as shown in the ULSB <NUM>, DMRSs <NUM> and tones <NUM> (e.g., used for data or control information) in the second symbol <NUM> may be frequency-hopped in view of DMRSs <NUM> and tones <NUM> (e.g., used for data or control information) in the first symbol <NUM>.

In another aspect, sequence hopping may be used by the UE to increase interference diversity. In one implementation of Format <NUM>, the UE may use one sequence for "ACK," and another sequence for "NACK. " In an example, the sequences in the first symbol <NUM> and the second symbol <NUM> may use sequence-based design and have low peak-to-average power ratio (PAPR). In this example, the sequence for "ACK" hypothesis in the second symbol in the ULSB may be different from the sequence for "ACK" hypothesis in the first symbol. Similarly, the sequence for other hypothesis may also be different between the two symbols. The different sequences may be the same base sequence with different cyclic shift indices. In another example of Format <NUM>, DMRS sequence hopping may be used for DMRSs in the second symbol <NUM> having FDM-based design. In some cases, the sequences used for DMRSs are known sequences to the UE and/or the network entity. In an aspect, scrambling sequence hopping may be used for data tones in FDM- based design.

In some examples, if frequency hopping is disabled by the network entity or not used by the UE, the two-symbol UL signal may use a same DMRS ratio (e.g., one third (<NUM>/<NUM>) of the <NUM> tones) as the one-symbol UL signal. For example, if <NUM> tones/sub-carriers are used for DMRS in one-symbol design, in order to keep the same DMRS ratio (<NUM>/<NUM>), each symbol of a two-symbol design has <NUM> DMRS tones/sub-carriers. In another example, the UE may generate shared DMRS tones between two symbols (e.g., symbols <NUM> and <NUM>) for better channel estimation (e.g., performed at the network entity <NUM>). In some cases, DMRS tones may occupy the same frequency locations (or sub-carriers) in the two symbols (e.g., symbols <NUM> and <NUM>). In some cases, DMRS tones may occupy different frequency locations (or sub-carriers) in the two symbols (e.g., symbols <NUM> and <NUM>).

In some other examples, the UE may use lower DMRS ratio for the two-symbol UL signal than the DMRS ratio used by the one-symbol UL signal. For example, in the two-symbol UL signal, a plurality of DMRS tones may be used in the first symbol (e.g., same as one-symbol UL signal), and less or no DMRS tones (compared with the plurality of DMRS tones in the first symbol) being used in the second symbol. In another example, DMRS tones may be used in every <NUM> tones in a one-symbol UL signal. In some cases, DMRS tones may be used in every <NUM> tones in a two-symbol UL signal, and the DMRS tones may occupy different location combinations in the two symbols.

In some other examples, the UE may have an average of DMRS tones in the two consecutive symbols that is less than a number of DMRS tones in a single symbol transmission. For example, the first symbol can have <NUM> DMRS tones and the second symbol can have <NUM> DMRS tone or the first symbol can have <NUM> DMRS tone and the second symbol can have <NUM> DMRS tones. In another example, the first symbol can have <NUM> DMRS tones and the second symbol can have <NUM> DMRS tones or the first symbol can have <NUM> DMRS tones and the second symbol can have <NUM> DMRS tones. In yet another example, the first symbol can have <NUM> DMRS tones and the second symbol can have <NUM> DMRS tones. Thus, in these examples, the average DMRS tones in the first symbol and the second symbol is <NUM> DMRS tones which is less the number of DMRS tones in a single symbol, e.g., <NUM> DMRS tones.

Referring to <FIG>, in an operational aspect, a UE (e.g., UE <NUM> or UE <NUM>) may perform one or more aspects of a method <NUM> for uplink transmissions in a wireless communication system. For example, one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, the transceiver <NUM> (e.g., the receiver <NUM> and/or transmitter <NUM>), the uplink management component <NUM>, symbol generating component <NUM>, hopping management component <NUM>, and/or DMRS management component <NUM>, may be configured to perform one or more aspects of the method <NUM>.

In an aspect, at block <NUM>, the method <NUM> may include receiving, by a UE, hopping information for two consecutive symbols. In an aspect, for example, the uplink management component <NUM>, and/or the hopping management component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the receiver <NUM>, may be configured to receive, via the receiver <NUM>, hopping information (e.g., from network entity <NUM>) used for generating two consecutive symbols. In an example, the two consecutive symbols may be sequence-based symbols or FDM-based symbols. In some cases, the hopping management component <NUM> may be configured to determine whether hopping is configurable, enabled, or disabled based on the received hopping information.

In an aspect, at block <NUM>, the method <NUM> may include generating, by the UE, a first symbol of the two consecutive symbols using a format. In an aspect, for example, the uplink management component <NUM>, and/or the symbol generating component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the receiver <NUM>, may be configured to generate a first symbol using a predetermined or known format. In some examples, the first symbol is a sequence-based symbol or a FDM-based symbol. In an aspect, the format may be or comprise a tone index indicating the type of signal (e.g., data, DMRS, etc.) to be carried on each tone (e.g., a tone/sub-carrier of <NUM> tones). For example, the symbol generating component <NUM> and/or DMRS management component <NUM> may use the tone index to determine DMRS tone configuration (or arrangement) in the first symbol.

In an aspect, at block <NUM>, the method <NUM> may include generating, by the UE, a second symbol of the two consecutive symbols based on the format and the hopping information. In an aspect, for example, the uplink management component <NUM>, symbol generating component <NUM>, and/or hopping management component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transceiver <NUM>, may be configured to generate a second symbol of the two consecutive symbols based on the format and the hopping information. In an example, the second symbol is a sequence-based symbol or a FDM-based symbol.

In some examples, the symbol generating component <NUM> and/or the hopping management component <NUM>, may be configured to generate the second symbol using configurable hopping based on the format, and the configurable hopping may be frequency hopping or sequence hopping. In some cases, the UE may determine whether hopping is disabled based on the received hopping information, and may generate the second symbol as a repetition of the first symbol in response to a determination that hopping is disabled. In some other cases, the UE may determine whether hopping is enabled based on the received hopping information, and generate the second symbol using frequency hopping or sequence hopping in response to a determination that hopping is enabled.

In an aspect, at block <NUM>, the method <NUM> may include transmitting, by the UE, the two consecutive symbols in an uplink signal. In an aspect, for example, the uplink management component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transmitter <NUM>, may be configured to transmit, via the transmitter <NUM>, the two consecutive symbols in one or more uplink signals. For examples, the first symbol and the second symbol may be transmitted consecutively in an uplink signal having PUSCH or PUCCH.

In some examples, the uplink management component <NUM> may be configured to transmit, via the transmitter <NUM>, the two consecutive symbols in conjunction with transmitting another twelve symbols. For example, the two consecutive symbols may be transmitted immediately after transmitting twelve consecutive symbols (e.g., as shown in <FIG> and <FIG>). In another example, the two consecutive symbols may be transmitted before, or in between transmitting twelve symbols.

Referring to <FIG>, in another operational aspect, a network entity (e.g., network entity <NUM>) may perform one or more aspects of a method <NUM> for uplink signal receptions in a wireless communication system. For example, one or more of the processors <NUM>, the memory <NUM>, modem <NUM>, transceiver <NUM> (e.g., the receiver <NUM> and/or transmitter <NUM>), the communication management component <NUM>, hopping configuration component <NUM>, symbol management component <NUM>, and/or decoder <NUM>, may be configured to perform one or more aspects of the method <NUM>.

In an aspect, at block <NUM>, the method <NUM> may include transmitting hopping information to be used by a UE to generate two consecutive symbols. In an aspect, for example, the communication management component <NUM>, and/hopping configuration component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transmitter <NUM>, may be configured to transmit, via the transmitter <NUM>, hopping information to be used by a UE to generate two consecutive symbols for uplink transmission. In some examples, the hopping information may indicate that hopping is configurable. For example, the hopping information may indicate whether frequency hopping or sequence hopping is enabled or disabled.

In some examples, the communication management component <NUM>, hopping configuration component <NUM>, and/or symbol management component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transceiver <NUM> (e.g., the receiver <NUM> and/or transmitter <NUM>), may be configured to transmit, via transmitter <NUM>, a message indicating configurable hopping to be used by the second symbol, and the configurable hopping comprises frequency hopping or sequence hopping. In addition, the UE may be configured to receive, via the receiver <NUM>, the second symbol having the frequency hopping or the sequence hopping based on the format. In some cases, the message may be used to indicate configurable hopping or hopping information, and may be transmitted in a control channel (e.g., PDCCH, the DL signal <NUM> or <NUM>) from the network entity <NUM> to the UE <NUM> or <NUM>.

In an aspect, at block <NUM>, the method <NUM> may include receiving an uplink signal including at least the two consecutive symbols. In an aspect, for example, the communication management component <NUM>, and/or symbol management component <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the receiver <NUM>, may be configured to receive, via the receiver <NUM>, an uplink signal including at least the two consecutive symbols. In some examples, the two consecutive symbols may be received in conjunction with receiving another twelve symbols in the uplink signal.

In an aspect, at block <NUM>, the method <NUM> may include decoding a first symbol of the two consecutive symbols using a format. In an aspect, for example, the communication management component <NUM>, symbol management component <NUM>, and/or decoder <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transceiver <NUM>, may be configured to decode a first symbol of the two consecutive symbols using a format. In an aspect, the format may be or comprise a tone index indicating the type of signal (e.g., data, DMRS, etc.) to be carried on each tone (e.g., a tone/sub-carrier of <NUM> tones). For example, the symbol management component <NUM> and/or decoder <NUM> may use the tone index to determine DMRS tone configuration (or arrangement) in the first symbol.

In an aspect, at block <NUM>, the method <NUM> may include decoding a second symbol of the two consecutive symbols based on the format and the hopping information. In an aspect, for example, the communication management component <NUM>, symbol management component <NUM>, and/or decoder <NUM>, e.g., in conjunction with one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transceiver <NUM>, may be configured to decode a second symbol of the two consecutive symbols based on the format and the hopping information.

In an aspect, both the first symbol and the second symbol of the two consecutive symbols can be decoded, e.g., at the same time, based on the format and the hopping information. In an aspect, for example, the communication management component <NUM>, symbol management component <NUM>, and/or decoder <NUM>, e.g., in conjunction with the one or more of the processors <NUM>, the memory <NUM>, the modem <NUM>, and/or the transceiver <NUM>, may be configured to decode both the first symbol and the second symbol of the two consecutive symbols, e.g., at the same time, based on the format and the hopping information. For example, the first symbol and the second symbol can be decoded as if they are one symbol.

For purposes of simplicity of explanation, the methods discussed herein are shown and described as a series of acts, it is to be understood and appreciated that the method (and further methods related thereto) is/are not limited by the order of acts, as some acts may, in accordance with one or more aspects, occur in different orders and/or concurrently with other acts from that shown and described herein. For example, it is to be appreciated that a method could alternatively be represented as a series of interrelated states or events, such as in a state diagram. Moreover, not all illustrated acts may be required to implement a method in accordance with one or more features described herein.

Several aspects of a telecommunications system have been presented with reference to an LTE/LTE-A or a <NUM> communication system.

By way of example, various aspects may be extended to other communication systems such as High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), High Speed Packet Access Plus (HSPA+) and TD-CDMA. Various aspects may also be extended to systems employing Long Term Evolution (LTE) (in FDD, TDD, or both modes), LTE-Advanced (LTE-A) (in FDD, TDD, or both modes), CDMA2000, Evolution-Data Optimized (EV-DO), Ultra Mobile Broadband (UMB), IEEE <NUM> (Wi-Fi), IEEE <NUM> (WiMAX), IEEE <NUM>, Ultra-Wideband (UWB), Bluetooth, and/or other suitable systems.

Claim 1:
A method of wireless communications, comprising:
receiving (<NUM>), by a user equipment, UE, hopping information for generating two consecutive symbols in a two-symbol uplink short burst, ULSB, wherein the hopping information indicates whether hopping is enabled or disabled;
receiving, by the UE, an index of a resource block for frequency hopping;
generating (<NUM>), by the UE, a first symbol of the two consecutive symbols using a format associated with the two-symbol ULSB;
generating (<NUM>), by the UE, a second symbol of the two consecutive symbols based on the format and the hopping information, wherein the second symbol is generated using one or more different resource blocks than those used for the first symbol based on the index of the resource block; and
transmitting (<NUM>), by the UE, the two consecutive symbols in an uplink signal.