Transmission gap configuration

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment may determine a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter. In some aspects, a user equipment may transmit at least one transmission in the transmission group according to a transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group. Numerous other aspects are provided.

Description

This application is a divisional application of a patent application with an application date of February 15, 2019, an invention name of “Transmission Gap Configuration” and an application number of 201980013919.5. CROSS-REFERENCE TO RELATED APPLICATIONS PURSUANT TO 35 USC §19

[0001] This application claims priority to Greek Patent Application No. 20180100067, entitled “TECHNIQUES AND APPARATUSE FOR TRANSMISSION GAP CONFIGURATION,” filed on February 20, 2018, and U.S. Non-Provisional Patent Application No. 16 / 276,428, entitled “TRANSMISSION GAP CONFIGURATION,” filed on February 14, 2019, which are hereby expressly incorporated herein by reference. Technical Field

[0002] In general, aspects of the technology described below relate to wireless communications, and in particular, aspects of the technology described below relate to technologies and apparatuses for transmission gap configuration (e.g., for transmission gaps between a physical uplink control channel or a physical uplink shared channel and a sounding reference signal). Embodiments and technologies implement and provide wireless communication devices and systems configured for low-latency scenarios and enhanced network coverage. Background Art

[0003] Wireless communication systems have been widely deployed to provide a variety of telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is an evolution of the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0004] A wireless communication network may include multiple base stations (BSs), wherein the BSs are capable of supporting communication of multiple user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. Downlinks (or forward links) refer to the communication link from a BS to a UE, while uplinks (or reverse links) refer to the communication link from a UE to a BS. As further described in detail herein, a BS may be referred to as a Node B, a gNB, an Access Point (AP), a Radio Head, a Transmission Reception Point (TRP), a New Radio (NR) BS, a 5G Node B, and the like.

[0005] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate on a city-wide, national-wide, regional-wide, and even global scale. New Radio (NR) (also known as 5G) is an evolutionary set of LTE mobile standards released by the Third Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, making full use of new spectrum, using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., it is also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) on the uplink (UL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology and carrier aggregation. However, as the demand for mobile broadband access continues to increase, there is a need to further improve LTE and NR technologies. Preferably, these improvements can also be applied to other multiple access technologies and communication standards that adopt these technologies. Summary of the invention

[0006] In order to have a basic understanding of the technology discussed, some aspects of the present disclosure are summarized below. This summary is not an exhaustive overview of all expected features of the present disclosure, nor is it intended to identify key or important elements of all aspects of the present disclosure, or to describe the scope of any or all aspects of the present disclosure. Its sole purpose is to present some concepts of one or more aspects of the present disclosure in a summarized form as a prelude to the detailed description that follows.

[0007] In some aspects, a method of wireless communication may include determining a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter. The method may include sending at least one transmission in the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group.

[0008] In some aspects, a user device for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to determine a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter. The memory and the one or more processors may be configured to send at least one transmission in the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group.

[0009] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When the one or more instructions are executed by one or more processors of a user device, the one or more processors may be configured to: determine a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter. When the one or more instructions are executed by one or more processors of the user device, the one or more processors may be configured to: send at least one transmission in the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group.

[0010] In some aspects, an apparatus for wireless communication may include means for determining a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter. In some aspects, the apparatus may include means for sending at least one transmission in the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group.

[0011] In some aspects, a method of wireless communication performed by a base station (BS) may include: sending information for identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; and receiving at least one transmission in a transmission group based on a transmission gap for the transmission group associated with at least one of the sounding reference signal parameter, the digital scheme parameter, or the antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission.

[0012] In some aspects, a BS for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: send information identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; and receive at least one transmission in a transmission group according to a transmission gap for the transmission group associated with at least one of the sounding reference signal parameter, the digital scheme parameter, or the antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission.

[0013] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When the one or more instructions are executed by one or more processors of a BS, the one or more processors may be configured to: send information identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; and receive at least one transmission in a transmission group according to a transmission gap for the transmission group associated with at least one of the sounding reference signal parameter, the digital scheme parameter, or the antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission.

[0014] In some aspects, an apparatus for wireless communication may include: a unit for sending information for identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; and a unit for receiving at least one transmission in a transmission group based on a transmission gap for the transmission group associated with at least one of the sounding reference signal parameter, the digital scheme parameter, or the antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission.

[0015] Aspects of the present invention generally include methods, apparatus, devices, computer program products, non-transitory computer-readable media, user equipment, wireless communication devices, base stations, and processing systems as fully described herein with reference to and as illustrated in the accompanying drawings and description.

[0016] In order to better understand the following specific embodiments, the features and technical advantages of the examples according to the present disclosure have been generally summarized to a considerable extent. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for the same purpose of performing the present disclosure. These equivalent constructions do not depart from the scope of protection of the attached claims. When considering the following specific embodiments in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (about their organization and method of operation), and the associated advantages will be better understood. Each of these drawings is provided for illustration and description purposes only, and is not used as a limitation to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to understand in detail the implementation of the above-described features of the present disclosure, the present application provides a more specific description with reference to some aspects for the above brief summary, some of which are illustrated in the accompanying drawings. However, it should be noted that since the description of the present invention allows for other equivalent effective aspects, these drawings only depict certain typical aspects of the present disclosure, which should not be considered to limit the scope of protection of the present invention. The same reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network according to various aspects of the present disclosure.

[0019] Figure 2 is a block diagram conceptually illustrating an example of a base station communicating with a user equipment (UE) in a wireless communication network according to various aspects of the present disclosure.

[0020] Figure 3A is a block diagram conceptually illustrating an example of a frame structure in a wireless communication network in accordance with various aspects of the present disclosure.

[0021] Figure 3B is a block diagram conceptually illustrating an exemplary synchronous communication hierarchy in a wireless communication network in accordance with various aspects of the present disclosure.

[0022] Figure 4 is a block diagram conceptually illustrating an example subframe format with a normal cyclic prefix in accordance with various aspects of the present disclosure.

[0023] Figure 5 In accordance with various aspects of the present disclosure, an exemplary logical architecture of a distributed radio access network (RAN) is shown.

[0024] Figure 6 In accordance with various aspects of the present disclosure, an exemplary physical architecture of a distributed RAN is shown.

[0025] Figure 7 is a diagram illustrating an example of a downlink (DL)-centered subframe according to various aspects of the present disclosure.

[0026] Figure 8 is a diagram showing an example of an uplink (UL)-centered subframe according to various aspects of the present disclosure.

[0027] Fig. 9 is a diagram illustrating an example of transmission gap configuration according to various aspects of the present disclosure.

[0028] Fig.10 is a diagram illustrating exemplary processing, for example, performed by a user device, according to various aspects of the present disclosure.

[0029] Fig.11 is a diagram illustrating exemplary processing performed, for example, by a base station according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0030] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in a variety of different forms, which should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, providing these aspects is only to make the present disclosure thorough and complete, and will fully convey the protection scope of the present disclosure to those of ordinary skill in the art. At least partially based on the content of this application, it should be understood by those of ordinary skill in the art that the protection scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, the use of any number of aspects set forth herein can realize a device or can realize a method. In addition, the protection scope of the present disclosure is intended to cover such a device or method, which can be realized by using other structures, functions, or structures and functions of various aspects of the present disclosure set forth herein, or structures and functions of various aspects of the present disclosure set forth herein different from those set forth herein. It should be understood that any aspect of the disclosure disclosed herein can be embodied by one or more components of the present invention.

[0031] Some aspects of telecommunication systems are now presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and depicted in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0032] It should be noted that although this document uses terminology commonly associated with 3G and / or 4G wireless technologies to describe aspects of the present disclosure, aspects of the present disclosure may also be applicable to communication systems based on other generations (e.g., 5G and beyond, which include NR technology).

[0033] Although aspects and embodiments are described in this application by way of illustration of some examples, it will be understood by those of ordinary skill in the art that additional implementations and use cases may occur in many different arrangements and scenarios. The innovations described herein may be implemented across different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, embodiments and / or use cases may be implemented by integrated chip embodiments and / or other non-module component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchase devices, medical devices, AI-enabled devices, etc.). Although some examples may or may not be specifically targeted at use cases or applications, a variety of applicability of the described innovations can be expected. Implementations may span the range from chip-level or modular components to non-modular, non-chip-level implementations, and further extend to aggregated, distributed, or OEM devices or systems that include one or more aspects of the described innovations. In some practical settings, the device including the described aspects and features may also necessarily include other components and features for implementing and practicing the claimed and described embodiments. For example, the transmission and reception of wireless signals must include multiple components for analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, filters, processors, interleavers, adders / accumulators, etc.) The innovations described herein can be implemented in a wide variety of devices, chip-level components, systems, distributed arrangements, end-user devices, etc., of various sizes, shapes, and configurations.

[0034] Figure 1 is a diagram of a network 100 in which aspects of the present disclosure may be implemented. The network 100 may be an LTE network or some other wireless network (e.g., a 5G or NR network). The wireless network 100 may include multiple BSs 110 (shown as BSs 110a, BSs 110b, BSs 110c, and BSs 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE), and the BS may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmission reception point (TRP), and the like. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term "cell" is used.

[0035] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers), allowing unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area, allowing unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home), allowing restricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown, BS110a may be a macro BS for macro cell 102a, BS110b may be a pico BS for pico cell 102b, and BS110c may be a femto BS for femto cell 102c. The BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5GNB", and "cell" herein may be used interchangeably.

[0036] In some aspects, the cell need not be stationary, and the geographic area of ​​the cell may move according to the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or to one or more other BSs or network nodes (not shown) in the access network 100 through various types of backhaul interfaces (e.g., direct physical connections, virtual networks, etc.) using any appropriate transport network.

[0037] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , a relay station 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0038] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a higher transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0039] The network controller 130 may be coupled to a group of BSs and provide coordination and control for these BSs. The network controller 130 may communicate with these BSs via a backhaul. These BSs may also communicate with each other, for example, directly or indirectly via a wireless backhaul or a wired backhaul.

[0040] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio device), a vehicle-mounted component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless medium or a wired medium.

[0041] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. For example, MTC and eMTC UEs include robots, drones, remote devices (e.g., sensors, meters, monitors, location tags, etc.) that can communicate with a base station, another device (e.g., a remote device), or some other entity. For example, a wireless node may provide a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120 (e.g., processor components, memory components, etc.).

[0042] Generally, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0043] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein performed by base station 110. In some aspects, different UEs 120 may be configured to transmit according to different sets of parameters (e.g., different parameters, different digital schemes, etc.).

[0044] As indicated above, Figure 1 This is provided as an example only. Other examples can be found in Figure 1 The examples described are different.

[0045] Figure 2 A block diagram of a design of a base station 110 and a UE 120 is shown, where the base station 110 and the UE 120 may be Figure 1 One of the base stations in Figure 1 Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0046] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, overhead symbols, and / or reference symbols (if any), and provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in further detail below, position coding may be used to generate synchronization signals to convey additional information.

[0047] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if any), and provide detected symbols. Receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor may determine a reference signal received power (RSRP), a received signal strength indicator (RSSI), a reference signal received quality (RSRQ), a channel quality indicator (CQI), etc. In some aspects, the UE 120 may determine a transmission gap based at least in part on received parameters (e.g., received parameters identifying antennas to use, a digital scheme to use for transmission, etc.).

[0048] On the uplink, at the UE 120, a transmit processor 264 may receive data from a data source 262, control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from a controller / processor 280, and process the data and control information. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted back to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0049] In some aspects, one or more components of UE 120 may be included in a housing. Figure 2 The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components in the system may perform one or more techniques associated with transmission gap configuration, as further described in detail elsewhere herein. For example, Figure 2 The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other component in the system may perform or direct, for example, Fig.10 Processing 1000, Fig.11 The process 1100 and / or other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. Scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0050] In some aspects, the UE 120 may include: means for determining a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter or a digital scheme parameter; means for sending at least one transmission in the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group, and so on. In some aspects, these means may include combining Figure 2 One or more components of UE 120 are described.

[0051] In some aspects, BS 110 may include: means for sending information identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; means for receiving at least one transmission in a transmission group according to a transmission gap for the transmission group associated with at least one of the sounding reference signal parameter, the digital scheme parameter, or the antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission. In some aspects, these means may include combining Figure 2 One or more components of BS 110 are described.

[0052] As indicated above, Figure 2 This is provided as an example only. Other examples can be found in Figure 2 The examples described are different.

[0053] Figure 3AAn exemplary frame structure 300 for FDD in a telecommunication system (e.g., NR) is shown. The transmission timeline for each of the downlink and uplink may be divided into units of radio frames. Each radio frame may have a predetermined duration and may be divided into a set of Z (Z ≥ 1) subframes (e.g., with indices 0 to Z-1). Each subframe may include a set of time slots (e.g., in Figure 3A Each time slot may include a set of L symbol periods. For example, each time slot may include seven symbol periods (e.g., Figure 3A ), fifteen symbol periods, etc. Where a subframe includes two slots, the subframe may include 2L symbol periods, where the 2L symbol periods in each subframe may be assigned indices 0 to 2L-1. In some aspects, the scheduling unit for FDD may be frame-based, subframe-based, slot-based, symbol-based, etc.

[0054] Although some techniques are described herein in conjunction with frames, subframes, time slots, etc., these techniques may be equally applicable to other types of wireless communication structures, which may be referred to using terms other than "frames," "subframes," "time slots," etc. in 5G NR. In some aspects, a wireless communication structure may refer to a communication unit with periodic time limits specified by a certain wireless communication standard and / or protocol. Additionally or alternatively, a wireless communication structure may be referred to using terms other than "frames," "subframes," "time slots," etc. Figure 3A The wireless communication structures shown in FIG.

[0055] In some telecommunications (e.g., NR), a base station may send synchronization signals. For example, a base station may send a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and so on on the downlink for each cell supported by the base station. The PSS and SSS may be used by the UE for cell search and acquisition. For example, the UE may use the PSS to determine symbol timing, and the UE may use the SSS to determine a physical cell identifier and frame timing associated with the base station. The base station may also send a physical broadcast channel (PBCH). The PBCH may carry certain system information, such as system information that supports initial access of the UE.

[0056] In some aspects, the base station may transmit the PSS, SSS, and / or PBCH according to a synchronization communication hierarchy (e.g., a synchronization signal (SS) hierarchy) including multiple synchronization communications (e.g., synchronization signal (SS) blocks), as described below in conjunction with Figure 3B As described.

[0057] Figure 3B FIG. 1 is a block diagram conceptually illustrating an exemplary SS hierarchy, wherein the SS hierarchy is an example of a synchronous communication hierarchy. Figure 3BAs shown in FIG. 1 , the SS hierarchy may include an SS burst set, which may include multiple SS bursts (identified as SS burst 0 to SS burst B-1, where B is the maximum number of repetitions of the SS burst that the base station can send). As further shown in the figure, each SS burst may include one or more SS blocks (identified as SS block 0 to SS block (b max_SS-1 ), where b max_SS-1 is the maximum number of SS blocks that can be carried by an SS burst. In some aspects, different SS blocks may be beamformed differently. A wireless node may periodically (e.g., every X milliseconds) send an SS burst, such as Figure 3B In some aspects, SS burst sets may have a fixed or dynamic length (in Figure 3B , shown as Y milliseconds).

[0058] Figure 3B The SS burst set shown in is an example of a synchronous communication set, and other synchronous communication sets can be used in conjunction with the techniques described herein. In addition, Figure 3B The SS block shown in is an example of synchronous communication, and other synchronous communications can be used in conjunction with the techniques described herein.

[0059] In some aspects, the SS block includes resources that carry PSS, SSS, PBCH and / or other synchronization signals (e.g., a third synchronization signal (TSS)) and / or synchronization channels. In some aspects, multiple SS blocks are included in an SS burst, and the PSS, SSS and / or PBCH can be the same on each SS block of the SS burst. In some aspects, a single SS block can be included in an SS burst. In some aspects, the length of the SS block can be at least four symbol periods, where each symbol carries one or more of the PSS (e.g., which occupies one symbol), the SSS (e.g., which occupies one symbol), and / or the PBCH (e.g., which occupies two symbols).

[0060] In some aspects, the symbols of the SS blocks are consecutive, such as Figure 3B In some aspects, the symbols of the SS blocks are non-contiguous. Similarly, in some aspects, one or more SS blocks of an SS burst may be sent in contiguous radio resources (e.g., contiguous symbol periods) during one or more subframes. Additionally or alternatively, one or more SS blocks of an SS burst may be sent in non-contiguous radio resources.

[0061] In some aspects, the SS burst may have a burst period, whereby the base station transmits the SS blocks of the SS burst according to the burst period. In other words, the SS blocks may be repeated during each SS burst. In some aspects, the SS burst set may have a burst set periodicity, whereby the base station transmits the SS bursts of the SS burst set according to a fixed burst set period. In other words, the SS burst may be repeated during each SS burst set.

[0062] The base station may send system information such as system information blocks (SIBs) on a physical downlink shared channel (PDSCH) in certain subframes. The base station may send control information / data on a physical downlink control channel (PDCCH) in C symbol periods of a subframe, where B is configurable for each subframe. The base station may send traffic data and / or other data on the PDSCH in the remaining symbol periods of each subframe.

[0063] As indicated above, Figure 3A and Figure 3B Other examples can be found in Figure 3A and Figure 3B The examples described are different.

[0064] Figure 4 An exemplary subframe format 410 with a normal cyclic prefix is ​​shown. The available time-frequency resources may be divided into a number of resource blocks. Each resource block may cover a group of subcarriers (e.g., 12 subcarriers) in a time slot, and each resource block may include multiple resource elements. Each resource element may cover a subcarrier in a symbol period (e.g., in time), and each resource element may be used to send a modulation symbol, where the modulation symbol may be a real value or a complex value. In some aspects, the subframe format 410 may be used to transmit SS blocks carrying PSS, SSS, PBCH, etc., as described herein.

[0065] For each of the downlink and uplink of FDD used in some telecommunication systems (e.g., NR), an interlaced structure may be used. For example, Q interlaces with indices 0 to Q-1 may be specified, where Q may be equal to 4, 6, 8, 10, or some other value. Each interlace may include subframes separated by Q frames. Specifically, an interlace q may include subframes q, q+Q, q+2Q, etc., where q∈{0,…,Q-1}.

[0066] A UE may be located within the coverage of multiple BSs. One of these BSs may be selected to serve the UE. The BS for service may be selected based at least in part on various criteria such as received signal strength, received signal quality, path loss, etc. The received signal quality may be quantified by a signal to noise plus interference ratio (SINR), or a reference signal received quality (RSRQ), or some other metric. The UE may operate in a significant interference scenario, where the UE observes strong interference from one or more interfering BSs.

[0067] Although aspects of the examples described herein may be associated with NR or 5G technology, aspects of the present disclosure may also be applicable to other wireless communication systems. New Radio (NR) may refer to a radio configured to operate according to a new air interface (e.g., different from an air interface based on Orthogonal Frequency Division Multiple Access (OFDMA)) or a fixed transport layer (e.g., different from the Internet Protocol (IP)). In some aspects, NR may use OFDM with CP (referred to herein as cyclic prefix OFDM or CP-OFDM) and / or SC-FDM on the uplink, and CP-OFDM on the downlink, including support for half-duplex operation using TDD. In some aspects, NR may, for example, use OFDM with CP (referred to herein as CP-OFDM) and / or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) on the uplink, and CP-OFDM on the downlink, including support for half-duplex operation using TDD. NR may include: enhanced mobile broadband (eMBB) services targeting wide bandwidth (e.g., 80 megahertz (MHz) and above), millimeter wave (mmW) targeting high carrier frequencies (e.g., 60 gigahertz (GHz)), massive MTC (mMTC) targeting non-backward compatible MTC technologies, and / or mission critical ultra-reliable low latency communication (URLLC) services.

[0068] In some aspects, a single component carrier bandwidth of 100 MHZ may be supported. NR resource blocks may span 12 subcarriers in a duration of 0.1 milliseconds (ms), with a subcarrier bandwidth of 60 or 120 kilohertz (kHz). Each radio frame may include 40 subframes of length 10 ms. Thus, each subframe may have a length of 0.25 ms. Each subframe may indicate a link direction (e.g., DL or UL) for data transmission, and the link direction of each subframe may be switched dynamically. Each subframe may include DL / UL data and DL / UL control data.

[0069] Beamforming can be supported and the beam direction can be dynamically configured. In addition, MIMO transmission with precoding can be supported. MIMO configuration in DL can support up to 8 transmit antennas, with multi-layer DL transmission of up to 8 streams and up to 2 streams per UE. Multi-layer transmission of up to 2 streams per UE can be supported. Aggregation of multiple cells can be supported with up to 8 serving cells. Alternatively, NR can support different air interfaces that are different from OFDM-based interfaces. NR networks can include entities such as central units or distributed units.

[0070] As indicated above, Figure 4 Other examples can be found in Figure 4 The examples described are different.

[0071] Figure 5 According to aspects of the present disclosure, an exemplary logical architecture of a distributed RAN 500 is shown. A 5G access node 506 may include an access node controller (ANC) 502. The ANC may be a central unit (CU) of the distributed RAN 500. A backhaul interface for a next generation core network (NG-CN) 504 may terminate at the ANC. A backhaul interface for an adjacent next generation access node (NG-AN) may terminate at the ANC. The ANC may include one or more TRPs 508 (which may also be referred to as a BS, NR BS, Node B, 5G NB, AP, gNB, or some other term). As described above, a TRP may be used interchangeably with a "cell".

[0072] The TRP 508 may be a distributed unit (DU). The TRP may be connected to one ANC (ANC 502) or more than one ANC (not shown). For example, for RAN sharing, Radio as a Service (RaaS), and service-specific AND deployment, the TRP may be connected to more than one ANC. The TRP may include one or more antenna ports. The TRP may be configured to serve services for UEs individually (e.g., dynamically selected) or jointly (e.g., joint transmission).

[0073] The local architecture of the RAN 500 may be used to describe a fronthaul definition. The architecture may be specified to support fronthaul solutions across different deployment types. For example, the architecture may be based at least in part on the transmitting network capabilities (e.g., bandwidth, latency, and / or jitter).

[0074] The architecture may share features and / or components with LTE. According to some aspects, the next generation AN (NG-AN) 510 may support dual connectivity with NR. The NG-AN may share a common fronthaul for LTE and NR.

[0075] The architecture may enable collaboration between TRPs 508. For example, collaboration may be pre-set within and / or across TRPs via ANC 502. According to some aspects, an inter-TRP interface may not be needed / existent.

[0076] According to some aspects, there may be dynamic configuration of separate logical functions in the architecture of RAN 500. Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), Medium Access Control (MAC) protocols may be adaptively placed at the ANC or TRP.

[0077] According to various aspects, a BS may include a central unit (CU) (eg, ANC 502) and / or one or more distributed units (eg, one or more TRPs 508).

[0078] As indicated above, Figure 5 This is provided as an example only. Other examples can be found in Figure 5 The examples described are different.

[0079] Figure 6 According to aspects of the present disclosure, an exemplary physical architecture of a distributed RAN 600 is shown. A centralized core network unit (C-CU) 602 may own core network functions. The C-CU may be centrally deployed. C-CU functions may be offloaded (e.g., to Advanced Wireless Services (AWS)) to best handle peak capacity.

[0080] A centralized RAN unit (C-RU) 604 may have one or more ANC functions. Optionally, the C-RU may have core network functions locally. The C-RU may have a distributed deployment. The C-RU may be closer to the network edge.

[0081] A distributed unit (DU) 606 may have one or more TRPs. A DU may be located at the edge of a network with radio frequency (RF) capabilities.

[0082] As indicated above, Figure 6 This is provided as an example only. Other examples can be found in Figure 6 The examples described are different.

[0083] Figure 7700 is a diagram illustrating an example of a DL-centric subframe or wireless communication structure. The DL-centric subframe may include a control portion 702. The control portion 702 may be located at an initial or beginning portion of the DL-centric subframe. The control portion 702 may include various scheduling information and / or control information corresponding to various portions of the DL-centric subframe. In some configurations, the control portion 702 may be a physical DL control channel (PDCCH), such as Figure 7 In some aspects, the control portion 702 may include legacy PDCCH information, shortened PDCCH (sPDCCH) information, a control format indicator (CFI) value (e.g., carried on a physical control format indicator channel (PCFICH)), one or more grants (e.g., downlink grant, uplink grant, etc.), and the like.

[0084] The DL-centric subframe 500 may also include a DL data portion 704. The DL data portion 704 may sometimes be referred to as the payload of the DL-centric subframe. The DL data portion 704 may include communication resources utilized by transmitting DL data from a scheduling entity (e.g., a UE or BS) to a subordinate entity (e.g., a UE). In some configurations, the DL data portion 704 may be a physical DL shared channel (PDSCH).

[0085] The DL-centric subframe may also include a UL short burst portion 706. The UL short burst portion 706 may sometimes be referred to as a UL burst, a UL burst portion, a common UL burst, a short burst, a UL short burst, a common UL short burst, a common UL short burst portion, and / or various other appropriate terms. In some aspects, the UL short burst portion 706 may include one or more reference signals. Additionally or alternatively, the UL short burst portion 706 may include feedback information corresponding to various other portions of the DL-centric subframe. For example, the UL short burst portion 706 may include feedback information corresponding to the control portion 702 and / or the data portion 704. Non-limiting examples of information that may be included in the UL short burst portion 706 include an ACK signal (e.g., PUCCH ACK, PUSCH ACK, immediate ACK), a NACK signal (e.g., PUCCH NACK, PUSCH NACK, immediate NACK), a scheduling request (SR), a buffer status report (BSR), a HARQ indicator, a channel state indication (CSI), a channel quality indicator (CQI), a sounding reference signal (SRS), a demodulation reference signal (DMRS), PUSCH data, and / or various other suitable types of information. The UL short burst portion 706 may include additional or alternative information, such as information about a random access channel (RACH) procedure, a scheduling request, and various other suitable types of information.

[0086] like Figure 7 As shown in , the end of the DL data portion 704 can be separated in time from the beginning of the UL short burst portion 706. This time separation may sometimes be referred to as a gap, a guard period, a guard interval, and / or various other appropriate terms. This separation provides time for switching from DL communication (e.g., a receiving operation of a subordinate entity (e.g., a UE)) to UL communication (e.g., a transmission of a subordinate entity (e.g., a UE)). The foregoing aspects are merely examples of DL-centric wireless communication structures, and alternative structures with similar features may exist without departing from the aspects described herein.

[0087] As indicated above, Figure 7 This is provided as an example only. Other examples can be found in Figure 7 The examples described are different.

[0088] Figure 8 800 is a diagram illustrating an example of a UL-centric subframe or wireless communication structure. The UL-centric subframe may include a control portion 802. The control portion 802 may be located at an initial or beginning portion of the UL-centric subframe. Figure 8 The control portion 802 in the embodiment may be similar to the above reference Figure 7 The control portion 702 described. The UL-centric subframe may also include a UL long burst portion 804. The UL long burst portion 804 may sometimes be referred to as the payload of the UL-centric subframe. The UL portion may refer to the communication resources utilized to transmit UL data from a subordinate entity (e.g., a UE) to a scheduling entity (e.g., a UE or a BS). In some configurations, the control portion 802 may be a physical DL control channel (PDCCH).

[0089] like Figure 8 As shown in , the end of the control portion 802 can be separated in time from the beginning of the UL long burst portion 804. This time separation may sometimes be referred to as a gap, a guard period, a guard interval, and / or various other appropriate terms. This separation provides time for switching from DL communication (e.g., receiving operation of the scheduling entity) to UL communication (e.g., transmission of the scheduling entity).

[0090] The UL-centered subframe may also include a UL short burst portion 806 . Figure 8 The UL short burst portion 806 in the above reference may be similar to Figure 7 The UL short burst portion 706 described above. The UL short burst portion 706 may include the above combined Figure 7 Any of the information described. The foregoing aspects are merely one example of a UL-centric wireless communication structure, and there may be alternative structures with similar features without departing from the aspects described herein.

[0091] In some environments, two or more slave entities (e.g., UEs) may communicate with each other using sidelink signals. Real-world applications of such sidelink communications may include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle (V2V) communications, Internet of Everything (IoE) communications, IoT communications, mission-critical grids, and / or various other appropriate applications. In general, a sidelink signal may refer to a signal transmitted from one slave entity (e.g., UE1) to another slave entity (e.g., UE2) without relaying the communication through a scheduling entity (e.g., UE or BS) (even if the scheduling entity may be used for scheduling and / or control purposes). In some aspects, a licensed spectrum may be used to transmit sidelink signals (unlike wireless local area networks, where WLANs typically use unlicensed spectrum).

[0092] In one example, a wireless communication structure such as a frame may include UL-centered subframes and DL-centered subframes. In this example, the ratio of UL-centered subframes to DL-centered subframes in a frame may be dynamically adjusted based at least in part on the amount of UL data to be sent and the amount of DL data. For example, if there is more UL data, the ratio of UL-centered subframes to DL-centered subframes may be increased. Conversely, if there is more DL data, the ratio of UL-centered subframes to DL-centered subframes may be reduced.

[0093] As indicated above, Figure 8 Other examples can be found in Figure 8 The examples described are different.

[0094] Some communication systems (e.g., NR) may support the use of multiple ports and / or multiple antennas. For example, a UE may provide a sounding reference signal (SRS) resource using a specific number of adjacent symbols and up to four ports for each SRS resource. Transmission gaps such as guard periods, transition periods, and the like may be configured for a specific number of symbols between transmission groups (e.g., transmissions associated with SRS resources, transmissions associated with uplink channels (e.g., PUCCH, PUSCH, etc.), etc.). During the transmission gap, the UE may not meet the uplink transmission waveform quality requirements or may not be able to send an uplink signal. For example, the transmission gap may enable multiple SRS resources to be transmitted in a single time slot.

[0095] However, some antennas of the UE may be used simultaneously, thereby avoiding the need for transmission gaps. For example, when the UE is capable of uplink MIMO, the UE may use multiple antenna ports (referred to as antenna port groups) simultaneously. By including transmission gaps when multiple antennas may be used simultaneously, the UE may increase utilization of network resources, energy resources, and the like by extending the time period during which the UE is configured to perform transmissions relative to the time period during which multiple antennas are used to transmit simultaneously. Furthermore, in some use cases, distortion and / or degradation of transmissions associated with insufficient transmission gaps may not interrupt transmissions. In other words, not including transmission gaps may result in SRS or other types of transmissions still being available.

[0096] Some aspects described herein may enable transmission gap configuration. For example, a UE may determine a set of parameters such as SRS parameters (e.g., whether SRS is used for uplink codebook precoding, uplink non-codebook precoding, uplink analog beamforming, uplink antenna switching, etc.), digital scheme parameters (e.g., subcarrier spacing values ​​such as 15 kilohertz (KHz), 30 KHz, etc.), etc. In this case, the UE may dynamically configure a transmission gap for a transmission group based at least in part on the set of parameters, and may transmit according to the transmission gap. For example, the UE may include a transmission gap between an SRS and a PUCCH, between an SRS and a PUSCH, etc., to reduce the possibility of distortion associated with the SRS. Additionally or alternatively, the UE may determine that a transmission gap is not required, and may omit a transmission gap from a transmission group, thereby improving utilization of network resources, reducing utilization of energy resources, etc. relative to including a transmission gap when a transmission gap is not required.

[0097] Fig. 9 is a diagram illustrating an example 900 of a transmission gap configuration according to various aspects of the present disclosure. Fig. 9 As shown in , example 900 includes BS 110 and UE 120.

[0098] like Fig. 9As further shown in FIG. 1 and by reference numeral 910, the UE 120 may determine a transmission gap (e.g., a transition period) between a first type of uplink transmission and a second type of uplink transmission (e.g., between PUCCH and SRS, between PUSCH and SRS, and the like). For example, the UE 120 may determine the transmission gap based at least in part on a use case parameter related to the SRS. For example, the UE 120 may determine the transmission gap based at least in part on whether the SRS transmission is used for codebook-based precoding, non-codebook-based precoding, analog beamforming, antenna switching, and the like. In some aspects, the UE 120 may determine the use case parameter based on a bit indicator (e.g., a use case flag indicator). For example, the UE 120 may receive a flag indicator indicating beam management (e.g., beamforming use case), codebook precoding (e.g., codebook precoding use case), non-codebook precoding (e.g., non-codebook precoding use case), antenna switching (e.g., antenna switching use case), and the like. In this case, the UE 120 may determine that the SRS is used for uplink codebook-based precoding, uplink non-codebook-based precoding, uplink analog beamforming, etc., and determine that the transmission gap may be less than a threshold, for example, no transmission gap (zero transmission gap) (e.g., based at least in part on the use case being insensitive to degradation associated with the lack of transmission gaps). In contrast, the UE 120 may determine that the SRS is used for antenna switching, so a transmission gap greater than or equal to a threshold may be selected (e.g., based at least in part on the use case being sensitive to degradation associated with the lack of transmission gaps). In some aspects, the transmission gap and / or the threshold may be a specific number of seconds, a specific number of OFDM symbols, a specific length associated with a digital scheme, etc. Additionally or alternatively, the UE 120 may determine the transmission gap based at least in part on digital scheme parameters. For example, the UE 120 may determine the transmission gap based at least in part on subcarrier spacing, for example, the subcarrier spacing is 15KHz, 30KHz, 60KHz, 120KHz, etc.

[0099] In some aspects, the UE 120 may determine a transmission gap based on antenna parameters. For example, the UE 120 may determine whether the transmission group includes multiple types of transmissions associated with different antennas (e.g., PUCCH and SRS, PUSCH and SRS, etc.), the same antenna, etc., as described herein. In some aspects, the UE 120 may determine the transmission gap based at least in part on a combination of use case parameters and digital scheme parameters of use case parameters for SRS transmissions (e.g., in the transmission group). For example, for a transmission gap between a PUCCH or PUSCH and an SRS resource for SRS antenna switching with 60 kilohertz (KHz) subcarrier spacing, the UE 120 may select a first size for the transmission gap, such as one symbol transmission gap (e.g., for a scenario where the antenna changes between a PUCCH or PUSCH and an SRS transmission immediately following the PUCCH or PUSCH). Similarly, for a transmission gap between PUCCH or PUSCH and SRS resources for SRS antenna switching with 120 KHz subcarrier spacing, UE 120 may select a second size, such as two symbol transmission gaps, for the transmission gap (e.g., for a scenario where the antenna is changed between PUCCH or PUSCH and SRS transmission immediately following the PUCCH or PUSCH). In contrast, for a transmission gap between PUCCH or PUSCH and SRS resources for SRS antenna switching that is less than a threshold subcarrier spacing (e.g., 15 KHz, 30 KHz, etc.), UE 120 may select a third size (e.g., zero transmission gap) for the transmission gap.

[0100] In some aspects, the UE 120 may select from a plurality of candidate transmission gaps when determining the transmission gap. For example, when the UE 120 determines that the SRS is used for a plurality of use cases (e.g., for uplink codebook-based precoding and antenna switching), the UE 120 may determine each candidate transmission gap associated with each of the plurality of use cases (e.g., zero transmission gap for uplink codebook-based precoding, one symbol transmission gap for antenna switching). In this case, the UE 120 may select the largest transmission gap among the candidate transmission gaps (e.g., one symbol transmission gap for antenna switching), thereby ensuring that no degradation is caused to the use case associated with the largest transmission gap.

[0101] In some aspects, the transmission gaps may be guard periods. For example, the transmission gaps may be guard periods between transmissions using multiple antennas (e.g., transmissions by UE 120, transmissions by BS 110, a combination of transmissions by UE 120 and BS 110, etc.). In some aspects, these transmissions may be SRS transmissions. For example, UE 120 may use a power amplifier and antenna to send SRS. Additionally or alternatively, these transmissions may be uplink channels such as PUCCH, PUSCH, etc. For example, UE 120 may determine a transmission gap or guard period between PUCCH and SRS, between PUSCH and SRS, etc.

[0102] In some aspects, UE 120 may determine a transmission gap based at least in part on a format of a particular type of channel. For example, UE 120 may determine a first transmission gap configured with a first uplink channel of a PUCCH associated with transmitting a first size of payload or using a first waveform, and may determine a second transmission gap configured with a second uplink channel of a PUCCH associated with transmitting a second size of payload or using a second waveform. Further to this example, for PUCCH format type 0 with time division orthogonal cover code (TD-OCC), UE 120 may select a larger transmission gap than PUCCH format type 1, where PUCCH format type 1 does not include TD-OCC. In this manner, a guard period between PUCCH and SRS is larger when different transmit antennas are used for PUCCH and SRS than when a single transmit antenna is used for PUCCH and SRS.

[0103] like Fig. 9 As further shown in FIG. 1 and by reference numeral 920, UE 120 may transmit in accordance with a transmission gap. For example, UE 120 may not use a transmission gap to transmit at least one of the plurality of transmissions. Alternatively, UE 120 may transmit at least one transmission using the transmission gap (e.g., using a one symbol transmission gap, two symbol transmission gaps, etc.) based at least in part on determining the transmission gap.

[0104] In some aspects, when a zero transmission gap is configured, the UE 120 may perform an antenna cycling process. For example, when a transmission gap is not configured between a PUCCH transmission or a PUSCH transmission and an SRS transmission, the UE 120 may be configured to change antennas for multiple iterations of a transmission group, as described herein. As indicated by reference numeral 930, for a first transmission of an SRS in a first time slot, the UE 120 may determine to transmit the PUCCH and the first SRS (SRS1) using the first antenna and without a transmission gap, followed by transmitting the second SRS (SRS2) using the second antenna and with a transmission gap. Subsequently, in a second time slot and as indicated by reference numeral 940, for a second transmission of the SRS, the UE 120 may determine to transmit the PUCCH and the second SRS without a transmission gap, followed by transmitting the first SRS with a transmission gap. In this manner, UE 120 may average error vector magnitude (EVM) degradation across SRS1 and SRS2 (e.g., SRS1 experiences degradation during a first iteration and SRS2 experiences degradation during a second iteration), thereby reducing the likelihood that either SRS1 or SRS2 exceeds a threshold level of degradation.

[0105] In some aspects, the UE 120 may determine whether to perform an antenna cycling process to average EVM degradation based at least in part on the capabilities of the UE 120 (e.g., based at least in part on the UE 120 being configured to send a first SRS contiguous with the PUCCH in a first time slot and a second SRS contiguous with the PUCCH in a second time slot). Additionally or alternatively, the UE 120 may determine to perform an antenna cycling process based at least in part on semi-static signaling, the capabilities of the UE 120, and the like. For example, for a UE 120 with multiple transmitters, the UE 120 may use a primary antenna and a primary power amplifier for the PUCCH and an auxiliary antenna and a primary power amplifier to send the SRS, which may result in degradation due to the lack of a transmission gap. In this case, the UE 120 may determine to perform an antenna cycling process. In contrast, for a UE 120 with a single transmitter, the UE 120 may not experience degradation due to the lack of a transmission gap and may determine not to use the antenna cycling process.

[0106] As indicated above, Fig. 9 Other examples can be found in Fig. 9 The examples described are different.

[0107] Fig.10 is a diagram illustrating an example process 1000 performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 1000 is an example of a UE (eg, UE 120) performing transmission gap configuration.

[0108] like Fig.10 As shown in , in some aspects, process 1000 may include determining a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter (block 1010). For example, the UE may determine a transmission gap for a transmission group including a first type of transmission and a second type of transmission based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, etc.).

[0109] like Fig.10 As shown in , in some aspects, process 1000 may include: sending at least one transmission in the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group (block 1020). For example, the UE may send the transmission group according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group (e.g., using transmit processor 264, TX MIMO processor 266, modulator 254, antenna 252, etc.), as described above.

[0110] Process 1000 may include additional aspects, such as any single aspect and / or any combination of aspects described below and / or in combination with one or more other aspects of the processes described elsewhere herein.

[0111] In some aspects, the antenna parameter is associated with at least one antenna selected for the transmission group. In some aspects, the transmission gap for the transmission group is between a physical uplink control channel transmission and a sounding reference signal transmission. In some aspects, the transmission gap for the transmission group is between a physical uplink shared channel transmission and a sounding reference signal transmission. In some aspects, the transmission gap for the transmission group is selected as a maximum transmission gap among a plurality of candidate transmission gaps. In some aspects, the plurality of candidate transmission gaps are associated with a plurality of use cases associated with a sounding reference signal parameter.

[0112] In some aspects, the sounding reference signal parameter is associated with at least one of: an uplink codebook precoding parameter, an uplink non-codebook precoding parameter, an uplink analog beamforming parameter, or an uplink antenna switching parameter. In some aspects, the sounding reference signal parameter can be a use case flag indicator for indicating at least one of beam management, codebook precoding, non-codebook precoding, or antenna switching. In some aspects, the UE is configured to omit a transmission gap for the transmission group based at least in part on determining a transmission gap. In some aspects, the transmission gap is selected from a plurality of candidate transmission gaps corresponding to a plurality of sounding reference signal parameters.

[0113] In some aspects, the UE is configured to transmit a first type of transmission and a second type of transmission continuously and using different antennas for multiple iterations, wherein the UE is configured to transmit at least one of the first type of transmission or the second type of transmission using different antennas for the multiple iterations. In some aspects, the UE is configured to change the different antennas for the multiple iterations. In some aspects, the UE is configured to change the different antennas based at least in part on at least one of semi-static signaling or UE capabilities.

[0114] In some aspects, the UE is configured to determine the transmission gap based at least in part on an uplink channel configuration of a channel for the transmission group. In some aspects, the uplink channel configuration includes at least one of a type of channel or a format of the channel. In some aspects, the uplink channel configuration is related to at least one of a size of a payload transmitted using the channel or a waveform of the channel.

[0115] Although Fig.10 An exemplary block diagram of process 1000 is shown, but in some aspects, the same Fig.10 Process 1000 may include additional blocks, fewer blocks, different blocks, or blocks in a different arrangement than described in . Additionally or alternatively, two or more of the blocks of process 1000 may be performed in parallel.

[0116] Fig.11 is a diagram illustrating an example process 1100 performed, for example, by a BS, in accordance with various aspects of the present disclosure. Example process 1100 is an example of a BS (eg, BS 110) performing transmission gap configuration.

[0117] like Fig.11As shown in , in some aspects, process 1100 may include sending information identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter (block 1110). For example, the BS may send information identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, etc.), as described in more detail above.

[0118] like Fig.11 As shown in , in some aspects, process 1100 may include: receiving at least one transmission in a transmission group based on a transmission gap for the transmission group associated with at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission (block 1120). For example, the BS may (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.) receive at least one transmission in the transmission group based on a transmission gap for the transmission group associated with at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter, wherein the transmission group includes a first type of transmission and a second type of transmission, as described in more detail above.

[0119] Process 1100 may include additional aspects, such as any single aspect and / or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0120] In some aspects, the antenna parameter is associated with at least one antenna for the transmission group. In some aspects, the transmission gap for the transmission group is between a physical uplink control channel transmission and a sounding reference signal transmission. In some aspects, the transmission gap for the transmission group is between a physical uplink shared channel transmission and a sounding reference signal transmission.

[0121] Although Fig.11 An exemplary block diagram of process 1100 is shown, but in some aspects, the Fig.11 Process 1100 may include additional blocks, fewer blocks, different blocks, or blocks in a different arrangement than described in . Additionally or alternatively, two or more of the blocks of process 1100 may be performed in parallel.

[0122] The above disclosure provides illustration and description, but is not exhaustive, nor does it limit these aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.

[0123] As used herein, the term component is intended to be broadly interpreted as hardware, firmware, or a combination of hardware and software.As used herein, a processor is implemented using hardware, firmware, or a combination of hardware and software.

[0124] Some aspects are described herein in conjunction with thresholds. As used herein, satisfying a threshold may refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and the like.

[0125] It is apparent that the systems and / or methods described herein can be implemented using various forms of hardware, firmware, or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and performance of these systems and / or methods are described without reference to specific software code, and it should be understood that software and hardware used to implement these systems and / or methods can be designed based at least in part on the description herein.

[0126] Although the combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of possible aspects. In fact, many of these features can be combined in a manner that is not specifically set forth in the claims and / or not disclosed in the specification. Although each of the dependent claims listed below directly depends on only one claim, the disclosure of possible aspects includes each dependent claim in combination with each other claim item in the claim group. The phrase referring to "at least one of" a list item refers to any combination of these items (which includes a single member). For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc, or any other ordering of a, b and c).

[0127] Any element, action or instruction used in this application should not be interpreted as being critical or fundamental unless so clearly described. In addition, as used herein, the articles "a" and "an" are intended to include one or more, which can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more (e.g., related items, irrelevant items, combinations of related items and irrelevant items, etc.), which can be used interchangeably with "one or more". If only one item is intended to be referred to, the word "one" or similar terms will be used. In addition, as used herein, the terms "containing", "having", "comprising", etc. are intended to be open terms. In addition, the phrase "based on" is intended to mean "at least in part according to", unless otherwise explicitly stated.

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: determining a transmission gap for a transmission group based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter, the transmission group comprising a first type of transmission and a second type of transmission; as well as At least one transmission in the transmission group is sent according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group.

2. The method according to claim 1, wherein: The antenna parameters are associated with at least one antenna selected for the transmission group.

3. The method according to claim 1, wherein: The transmission gap for the transmission group is between a physical uplink control channel transmission and a sounding reference signal transmission.

4. The method according to claim 1, wherein: The transmission gap for the transmission group is between a physical uplink shared channel transmission and a sounding reference signal transmission.

5. The method according to claim 1, wherein: The transmission gap for the transmission group is selected as a maximum transmission gap among a plurality of candidate transmission gaps.

6. The method according to claim 5, wherein: The plurality of candidate transmission gaps are related to a plurality of use cases associated with the sounding reference signal parameter.

7. The method according to claim 1, wherein: The sounding reference signal parameter is related to at least one of the following items: an uplink codebook precoding parameter, an uplink non-codebook precoding parameter, an uplink analog beamforming parameter, or an uplink antenna switching parameter.

8. The method according to claim 1, wherein: The sounding reference signal parameter is a use case flag indicator for indicating that a use case of the sounding reference signal transmission in the transmission group is at least one of the following: beam management, codebook precoding, non-codebook precoding, or antenna switching.

9. The method according to claim 1, wherein: The UE is configured to omit the transmission gap for the transmission group based at least in part on determining the transmission gap.

10. The method according to claim 1, wherein: The transmission gap is selected from a plurality of candidate transmission gaps corresponding to a plurality of sounding reference signal parameters.

11. The method according to claim 1, wherein: The UE is configured to send the first type of transmission and the second type of transmission continuously and using different antennas for multiple iterations, and wherein the UE is configured to send at least one of the first type of transmission or the second type of transmission using different antennas for the multiple iterations.

12. The method according to claim 11, wherein: The UE is configured to change the different antenna based at least in part on at least one of semi-static signaling or UE capabilities.

13. The method according to claim 1, wherein: The UE is configured to determine the transmission gap based at least in part on an uplink channel configuration for a channel of the transmission group.

14. The method according to claim 13, wherein: The uplink channel configuration includes at least one of a type of the channel or a format of the channel.

15. The method according to claim 13, wherein: The uplink channel configuration is related to at least one of a size of a payload transmitted using the channel or a waveform of the channel.

16. A method of wireless communication performed by a base station (BS), comprising: Sending information for identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; as well as At least one transmission in a transmission group is received based on a transmission gap for a transmission group associated with at least one of the sounding reference signal parameters, the digital scheme parameters, or the antenna parameters, wherein the transmission group includes a first type of transmission and a second type of transmission.

17. The method according to claim 16, wherein: The antenna parameters are associated with at least one antenna for the transmission group.

18. The method according to claim 16, wherein: The transmission gap for the transmission group is between a physical uplink control channel transmission and a sounding reference signal transmission.

19. The method according to claim 16, wherein: The transmission gap for the transmission group is between a physical uplink shared channel transmission and a sounding reference signal transmission.

20. A user equipment (UE) for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: determining a transmission gap for a transmission group based at least in part on at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter, the transmission group comprising a first type of transmission and a second type of transmission; as well as At least one transmission in the transmission group is sent according to the transmission gap for the transmission group based at least in part on determining the transmission gap for the transmission group.

21. The UE according to claim 20, wherein: The antenna parameters are associated with at least one antenna selected for the transmission group.

22. The UE according to claim 20, wherein: The transmission gap for the transmission group is between a physical uplink control channel transmission and a sounding reference signal transmission.

23. The UE according to claim 20, wherein: The transmission gap for the transmission group is between a physical uplink shared channel transmission and a sounding reference signal transmission.

24. The UE according to claim 20, wherein: The transmission gap for the transmission group is selected as a maximum transmission gap among a plurality of candidate transmission gaps.

25. The UE according to claim 24, wherein: The plurality of candidate transmission gaps are related to a plurality of use cases associated with the sounding reference signal parameter.

26. The UE according to claim 20, wherein: The sounding reference signal parameter is related to at least one of the following items: an uplink codebook precoding parameter, an uplink non-codebook precoding parameter, an uplink analog beamforming parameter, or an uplink antenna switching parameter.

27. A base station (BS) for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: Sending information for identifying at least one of a sounding reference signal parameter, a digital scheme parameter, or an antenna parameter; as well as At least one transmission in a transmission group is received based on a transmission gap for a transmission group associated with at least one of the sounding reference signal parameters, the digital scheme parameters, or the antenna parameters, wherein the transmission group includes a first type of transmission and a second type of transmission.

28. The BS according to claim 27, wherein: The antenna parameters are associated with at least one antenna for the transmission group.

29. The BS according to claim 27, wherein: The transmission gap for the transmission group is between a physical uplink control channel transmission and a sounding reference signal transmission.

30. The BS according to claim 27, wherein: The transmission gap for the transmission group is between a physical uplink shared channel transmission and a sounding reference signal transmission.

Images