UE beam switching capability reporting and associated scheduling
By sending the indication of the beam handover capability of the UE as a multiple of the physical layer timing unit in wireless communication and scheduling authorization based on this capability, the problem of low beam handover capability reporting and scheduling efficiency in the prior art is solved, and more efficient beam handover and communication resource management is achieved.
Patent Information
- Application Number
- CN202180022235.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-02-24
- Filing Date
- 2021-02-25
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2041-02-25
AI Technical Summary
The prior art is difficult to effectively report and schedule beam switching capabilities between user equipment (UEs) in wireless communications, resulting in waste of network resources and reduced communication efficiency.
More precise and flexible beam switching scheduling is achieved by sending the indication of the beam switching capability of the UE as a multiple of the physical layer timing unit of the wireless network and receiving scheduling authorization based on this capability.
Improves the efficiency of beam switching, reduces the number of symbol perforations, saves network resources, and improves the overall efficiency of communication.
Smart Images

Figure CN115380606B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 994,006, filed on March 24, 2020, entitled “UE BEAM SWITCHING CAPABILITY REPORTING AND ASSOCIATED SCHEDULING,” and U.S. Non-Provisional Patent Application No. 17 / 249,234, filed on February 24, 2021, entitled “UE BEAM SWITCHING CAPABILITY REPORTING AND ASSOCIATEDSCHEDULING,” which are expressly incorporated herein by reference. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for user equipment (UE) beam switching capability reporting and associated scheduling. Background Art
[0004] Wireless communication systems are widely deployed to provide various telecommunication services, such as telephone, 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). Examples of these 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 a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0005] A wireless communication network may include multiple base stations (BSs) that may support communication of multiple user equipments (UEs). The UE may communicate with the BS via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As described in more detail herein, the BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, and / or 5G Node B, etc.
[0006] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at a municipal, national, regional, or even global level. NR (also referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards that use orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink (DL), CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and support beamforming, multiple input multiple output (MIMO) antenna technology, and carrier aggregation. However, as the demand for mobile broadband access continues to increase, further improvements to LTE and NR technologies are needed. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention
[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: sending an indication of the UE's beam switching capability as a multiple of a physical layer timing unit of a wireless network in which the UE is located; and receiving one or more scheduling grants based at least in part on the UE's beam switching capability.
[0008] In some aspects, a method of wireless communication performed by a BS may include: receiving an indication of a beam switching capability of a UE as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located; and sending one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0009] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: send an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the UE is located; and receive one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0010] In some aspects, a BS for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: receive an indication of a beam switching capability of a UE as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located; and send one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0011] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a UE, the one or more instructions may cause the one or more processors to: send an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the UE is located; and receive one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0012] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a BS, may cause the one or more processors to: receive an indication of a beam switching capability of a UE as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located; and send one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0013] In some aspects, an apparatus for wireless communication may include a component for transmitting an indication of a beam switching capability of a user equipment (UE) as a multiple of a physical layer timing unit of a wireless network in which the UE is located; and a component for receiving one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0014] In some aspects, an apparatus for wireless communication may include components for receiving an indication of a beam switching capability of a user equipment (UE) as a multiple of a physical layer timing unit of a wireless network in which a BS and the UE are located; and components for sending one or more scheduling grants based at least in part on the beam switching capability of the UE.
[0015] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as substantially described herein with reference to and as illustrated by the accompanying drawings and description.
[0016] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for users to modify or design other structures that perform the same purpose of the present disclosure. These equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and methods of operation, and associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Thus, the above-mentioned features of the present disclosure may be understood in detail, and a more specific description of the above brief summary may be made with reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and therefore should not be considered as limiting the scope thereof, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0018] Figure 1 is a diagram illustrating an example of a wireless communication network according to the present disclosure.
[0019] Figure 2 is a diagram illustrating an example of a base station communicating with a user equipment (UE) in a wireless communication network according to the present disclosure.
[0020] FIG. 3A to FIG. 3C is a diagram illustrating one or more examples of user equipment beam switching capability reporting and associated scheduling according to the present disclosure.
[0021] Figure 4 is a diagram illustrating an example process performed by, for example, a user device according to the present disclosure.
[0022] Figure 5 is a diagram illustrating an example process performed by, for example, a base station according to the present disclosure. DETAILED DESCRIPTION
[0023] Various aspects of the present invention are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure detailed and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings of this article, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or combined with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that utilizes other structures, functions, or structures and functions practiced in addition to the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein can be embodied by one or more elements of the claims.
[0024] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes and / or algorithms (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a 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.
[0025] It should be noted that although various aspects may be described herein using terminology generally associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applied to other generation-based communication systems, such as 5G and beyond, including NR technologies.
[0026] Figure 1 is a diagram showing a wireless network 100 in which aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include a plurality of BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, and / or transmit receive point (TRP), among others. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" may refer to a coverage area of a BS and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.
[0027] 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 few kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by 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 1In the example shown, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS 102c for a femto cell. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.
[0028] In some aspects, the cells may not necessarily be fixed, and the geographic area of the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as direct physical connections, virtual networks, and / or another type of backhaul interface using any suitable transport network.
[0029] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions 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, 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.
[0030] The wireless network 100 may be a heterogeneous network including different types of BSs, such as macro BSs, pico BSs, femto BSs, relay BSs, and / or other types of BSs. 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 high transmit power level (e.g., 5 watts 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 watt to 2 watts).
[0031] A network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other (eg, directly or indirectly via a wireless backhaul or a wired backhaul).
[0032] UE 120 (e.g., 120a, 120b, 120c) can be dispersed in 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, or 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / 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), a vehicle 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.
[0033] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide, for example, a connection to a network or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired communication link or a 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 inside a housing that houses components of UE 120 (such as processor components, memory components, etc.). In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, electrically coupled, and the like.
[0034] Typically, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can 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, 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.
[0035] 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 sidelink channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocol (e.g., which may include vehicle-to-vehicle (V2V) protocol, vehicle-to-infrastructure (V2I) protocol, etc.), mesh network, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.
[0036] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating frequency band having a first frequency range (FR1), which can range from 410 MHz to 7.125 GHz, and / or can communicate using an operating frequency band having a second frequency range (FR2), which can range from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "below 6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from an extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise expressly stated, it should be understood that the term "below 6 GHz" or the like, if used herein, can broadly represent frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Therefore, unless otherwise expressly stated, it should be understood that the term "millimeter wave" and the like, if used herein, can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0037] As pointed out above, Figure 1 are provided as examples. Other examples may be related to Figure 1 Differences from the examples described.
[0038] Figure 2 A block diagram of a design 200 of a base station 110 and a UE 120 is shown, which may be Figure 1Base 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.
[0039] 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 each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling, etc.), and may 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), demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and / or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may also process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, position coding may be used to generate synchronization signals to transmit additional information.
[0040] At the UE 120, antennas 252a to 252r may receive downlink signals from the base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may also process the input samples (e.g., for OFDM) to obtain received symbols. The MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to the data sink 260, and provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) reference, a reference signal received quality (RSRQ) parameter, a channel quality indicator (CQI) parameter, and / or other parameters. In some aspects, one or more components of UE 120 may be included in a housing.
[0041] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). 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 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. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. The receive processor 238 may provide decoded data to a data sink 239 and provide decoded control information to a 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.
[0042] Antennas (e.g., antennas 234a through 234t and / or antennas 252a through 252r) may include, or may be included in, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, among other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include a collection of coplanar antenna elements and / or a collection of non-coplanar antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements coupled to one or more transmit and / or receive components, such as Figure 2 One or more components of a
[0043] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other components of the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 4 The process of 400 Figure 5 The process 500 and / or other processes as described herein. The memories 242 and 282 may store data and program codes for the base station 110 and the UE 120, respectively. In some aspects, the memory 242 and / or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, interpretation) by one or more processors of the base station 110 and / or the UE 120, may, for example, perform the operations described herein. Figure 4 The process of 400 Figure 5 The process 500 and / or other processes of the present invention may be directly operated. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, interpreting instructions, etc. The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.
[0044] In some aspects, the UE 120 may include means for transmitting an indication of the UE's beam switching capability as a multiple of a physical layer timing unit of a wireless network in which the UE is located; means for receiving one or more scheduling grants based at least in part on the UE's beam switching capability; and the like. In some aspects, such means may include in conjunction with Figure 2 One or more components of the UE 120 are depicted, such as a controller / processor 280, a transmit processor 264, a TX MIMO processor 266, a MOD 254, an antenna 252, a DEMOD 254, a MIMO detector 256, a receive processor 258, and the like.
[0045] In some aspects, the base station 110 may include means for receiving an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located; and means for sending one or more scheduling grants based at least in part on the beam switching capability of the UE, etc. In some aspects, such means may include in conjunction with Figure 2 One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.
[0046] As pointed out above, Figure 2 are provided as examples. Other examples may be related to Figure 2 Differences from the examples described.
[0047] In a wireless network, different transmissions may use different beams (e.g., different transmit beams and / or different receive beams). It may take some time (e.g., about 0.1 μs in some example implementations) for a wireless communication device (such as a BS or UE) to switch between beams (e.g., switch between different beams, activate / deactivate, and / or re-tune a radio frequency (RF) component of the wireless communication device). The time for switching beams may be based at least in part on the capability of the wireless communication device. For example, a lower capability UE and / or BS may take longer to switch beams than a higher capability UE and / or BS that may take a shorter time to switch beams.
[0048] In some cases, a cyclic prefix (CP) is used to cover the time for switching beams. The length of the CP may be based at least in part on a subcarrier spacing (SCS) associated with the operating frequency. For example, in a frequency range (FR2) mmW with a 60kHz or 120kHz SCS, CP lengths of 1.725μs and 0.5625μs, respectively, may be sufficient to cover beam switching (e.g., because both are significantly longer than the 0.1μs beam switching duration). However, in some wireless networks, such as high-band wireless networks (e.g., 52.6GHz or higher), a larger SCS may be used. As the frequency of the wireless network increases, the symbol duration and CP length decrease. For example, at 480kHz SCS, the CP length is 0.14656μs, and at 3840kHz SCS, the CP length drops to 0.01832μs. Therefore, at a higher SCS, the CP length may not be enough to cover the beam switching duration. Therefore, in the case where the CP length is insufficient to cover the beam switching duration, the UE may have to puncture (e.g., discard) one or more symbols associated with the beam to complete the beam switching. This may consume network resources (e.g., time, frequency, and / or space resources), UE resources (e.g., memory resources, processor resources, etc.), BS resources, etc., which are associated with identifying a problem associated with one or more punctured symbols (e.g., a decoding problem, a demodulation problem, etc.), correcting the problem, etc.
[0049] Some aspects described herein provide techniques and apparatus for user equipment beam switching capability reporting and associated scheduling. In some aspects, a UE may report the beam switching capability as a multiple of a physical layer timing unit (e.g., a 5G NR physical layer timing unit) of a wireless network in which the UE is located. The duration of the physical layer timing unit may be a constant value that is independent of the SCS and symbol duration of the operating frequency on which the UE and the BS are communicating. Therefore, reporting the UE's beam switching capability as a multiple of the physical layer timing unit allows the UE to report the beam switching capability in an accurate and consistent manner, regardless of the operating frequency used by the UE and the BS.
[0050] In addition, the physical layer timing unit can be a relatively small duration (e.g., 0.509ns, etc.), which allows the UE to report the beam switching capability at a finer granularity level, so that the BS can more flexibly schedule the UE's communication in a manner that reduces the number of symbols that are punctured (e.g., discarded, etc.) when switching beams. In addition, reporting the UE's beam switching capability as a multiple of the physical layer timing unit of the wireless network in which the UE is located can save network resources (e.g., time, frequency, and / or space resources), UE resources (e.g., memory resources, processor resources, etc.), BS resources, etc., which would otherwise be used to identify problems associated with one or more punctured symbols (e.g., decoding problems, demodulation problems, etc.), correct the problem, etc.
[0051] FIG. 3A to FIG. 3C 1 is a diagram illustrating one or more examples 300 of user equipment beam switching capability reporting and associated scheduling according to the present disclosure. FIG. 3A to FIG. 3C As shown, example 300 may include BS 110 (e.g., the above combination Figure 1 and Figure 2 The BS 110 shown and described above) and the UE 120 (eg, Figure 1 and Figure 2 1 and 120). BS 110 and UE 120 may be included in a wireless network, such as wireless network 100. BS 110 and UE 120 may communicate over a wireless access link, which may include an uplink and a downlink.
[0052] like Figure 3AAs shown, and indicated by reference numeral 302, UE 120 may send an indication of the beam switching capability of UE 120 to BS 110 as a multiple of a physical layer timing unit (Tc). Tc may be based at least in part on a wireless network (e.g., wireless network 100) in which UE 120 is located. Tc may be based at least in part on a maximum SCS (e.g., 480 kHz, etc.) of the wireless network. For a wireless network, Tc may maintain a constant value (e.g., 0.509 ns, etc.) regardless of the SCS and symbol duration of the operating frequency on which UE 120 is communicating.
[0053] In some aspects, for the purpose of reporting the beam switching capability of the UE 120 in the wireless network, the Tc of the wireless network may be multiplied by a factor (K). K may be an integer or a scaling factor. K may be configured by the UE 120 and / or the BS 110, may be based at least in part on one or more telecommunication standards, may be based at least in part on one or more telecommunication specifications (e.g., 3GPP 5G specifications), may be based at least in part on the wireless network in which the BS 110 and the UE 120 are located, may be based at least in part on the operating frequency on which the BS 110 and the UE 120 are communicating, and the like.
[0054] In some aspects, the UE 120 may indicate the beam switching capability of the UE 120 as one or more units or multiples of KTc. In particular, the UE 120 may send an indication of the beam switching capability of the UE 120 to the BS 110 as one or more units or multiples of KTc. For example, the UE 120 may indicate that the beam switching capability of the UE 120 is a multiple of 4KTc (e.g., 4KTc). In some aspects, the UE 120 may indicate the beam switching capability of the UE 120 as a number of units or multiples of KTc (e.g., a transmission from the UE 120 may only indicate a number of units of KTc, such as 5, 10, etc.). In these cases, the BS 110 may be configured to determine the beam switching capability of the UE 120 by multiplying the reported unit or multiple by KTc.
[0055] In some aspects, UE 120 may indicate the beam switching capability of UE 120 as the number of units of KTc multiplied by K (e.g., a transmission from UE 120 may simply indicate the number of units multiplied by K, e.g., if K is 32 and the number of units is 4, UE 120 may indicate the beam switching capability of UE 120 as 128Tc). In some aspects, UE 120 may indicate the beam switching capability of UE 120 as an amount of time equal to the number of units multiplied by KTc (e.g., if Tc is 0.509ns, K is 32, and the number of units is 4, UE 120 may indicate the beam switching capability of UE 120 as 65.152ns).
[0056] As indicated by reference numeral 304, BS 110 may send one or more scheduling grants to UE 120 based at least in part on the indicated beam switching capability of UE 120. BS 110 may receive the indication of the beam switching capability of UE 120 as a multiple of Tc (e.g., as one or more units or multiples of Tc, as one or more units of KTc, etc.). For example, if UE 120 indicates that the beam switching capability of UE 120 is 3KTc and BS 110 determines that K is 32, BS 110 may interpret the beam switching capability of UE 120 as 3KTc to mean that UE 120 needs 96c (e.g., 3 times 32) or 48.864ns (e.g., if Tc is 0.509ns) to switch between different beams. BS 110 may send one or more scheduling grants to UE 120 based at least in part on an amount of time that UE 120 needs to switch between different beams (eg, a beam switching capability of UE 120).
[0057] like Figure 3B As shown, and indicated by reference numeral 306, BS 110 may send a plurality of scheduling grants that schedule back-to-back communications of different beams based at least in part on a time gap between different beams that satisfies the beam switching capability of UE 120. The scheduling grants that schedule back-to-back communications of different beams may be a physical uplink shared channel (PUSCH) scheduling grant, a physical uplink control channel (PUCCH) scheduling grant, a physical downlink shared channel (PDSCH) scheduling grant, a physical uplink control channel (PUCCH) scheduling grant, or a combination thereof. In general, the scheduling grants may schedule back-to-back transmission, back-to-back reception, back-to-back transmission and reception, or back-to-back reception and transmission of data communications, control communications, and / or a combination thereof.
[0058] For example, BS 110 may send multiple scheduling grants that schedule back-to-back communications of a first communication (e.g., communication 1) of a first beam (e.g., beam 1) followed by a second communication (e.g., communication 2) of a second beam (e.g., beam 2). In some aspects, communication 1 may be a first PUSCH transmission and communication 2 may be a second PUSCH transmission. In some aspects, communication 1 may be a PUSCH transmission and communication 2 may be a PDSCH transmission. In some aspects, communication 1 may be a first PDSCH transmission and communication 2 may be a second PDSCH transmission. In some aspects, communication 1 may be a PDSCH transmission and communication 2 may be a PUSCH transmission. These are merely simple examples of the types of transmissions that may be scheduled back-to-back by BS 110.
[0059] BS 110 may identify a time gap between communication 1 and communication 2 (e.g., between beam 1 and beam 2). BS 110 may identify that the time gap satisfies the beam switching capability of UE 120 (e.g., the time gap provides sufficient time for UE 120 to switch from beam 1 to beam 2). BS 110 may send one or more scheduling grants that schedule communication 1 (e.g., on beam 1) and communication 2 (e.g., on beam 2) based at least in part on the time gap between beam 1 and beam 2 that satisfies the beam switching capability of UE 120. BS 110 may send multiple scheduling grants that schedule multiple back-to-back communications on different beams in a manner similar to (or the same as) described herein.
[0060] UE 120 may receive one or more scheduling grants that are based at least in part on the beam switching capability of UE 120 and schedule one or more back-to-back communications on different beams (e.g., back-to-back PUSCH transmissions, back-to-back PDSCH transmissions, PUSCH transmissions after PDSCH transmissions, PDSCH transmissions after PUSCH transmissions, etc.). UE 120 may transmit back-to-back communications by switching between different beams for back-to-back communications (e.g., based at least in part on a time gap between different beams that satisfies the beam switching capability of UE 120) based at least in part on the one or more scheduling grants.
[0061] like Figure 3C As shown, and indicated by reference numeral 308, BS 110 may refrain from sending back-to-back scheduling grants that schedule back-to-back communications on different beams based at least in part on determining that the time gap between different beams does not satisfy the beam switching capability of UE 120. For example, BS 110 may identify that the time gap between beam 1 and beam 2 does not satisfy the beam switching capability of UE 120 (e.g., the time gap does not provide sufficient time for UE 120 to switch from beam 1 to beam 2). BS 110 may be unable to send one or more scheduling grants that schedule communication 1 (e.g., on beam 1) and communication 2 (e.g., on beam 2) based at least in part on the time gap between beam 1 and beam 2 that does not satisfy the beam switching capability of UE 120.
[0062] Thus, based at least in part on the fact that the time gap between different beams of back-to-back communications does not satisfy the beam switching capability of UE 120, UE 120 may not receive one or more scheduling grants for scheduling one or more back-to-back communications and may not transmit back-to-back communications. In this way, in the case where the time gap between different beams does not allow enough time for UE 120 to switch between different beams, BS 110 will not schedule UE 120 to switch between different beams. This ensures that UE 120 will not have to puncture one or more symbols of one (or both) of the different beams to switch between different beams. This can save network resources, UE resources, BS resources, etc., which would otherwise be used to identify problems associated with one or more punctured symbols (e.g., decoding problems, demodulation problems, etc.), correct problems, etc.
[0063] As pointed out above, FIG. 3A to FIG. 3C are provided as one or more examples. Other examples may be related to FIG. 3A to FIG. 3C The examples described are different.
[0064] Figure 4 4 is a diagram illustrating an example process 400 performed by, for example, a user device according to the present disclosure. The example process 400 is a diagram in which a user device (e.g., Figure 1 , Figure 2 and / or FIG. 3A to FIG. 3C An example of a UE 120) shown and described in one or more of the above and the like performing operations associated with UE beam switching capability reporting and associated scheduling.
[0065] like Figure 4 As shown, in some aspects, process 400 may include sending an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the UE is located (block 410). For example, the user equipment (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may send an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the UE is located, as described above.
[0066] like Figure 4 As further shown in FIG. 4 , in some aspects, process 400 may include receiving one or more scheduling grants based at least in part on the beam switching capabilities of the UE (block 420). For example, the user equipment (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may receive one or more scheduling grants based at least in part on the beam switching capabilities of the UE, as described above.
[0067] Process 400 may include additional aspects, such as any single aspect and / or any combination of aspects described below or in combination with one or more other processes described elsewhere herein.
[0068] In a first aspect, one or more scheduling grants include multiple back-to-back communication scheduling grants. The multiple back-to-back communication scheduling grants include: a first communication scheduling grant that schedules a first communication transmission on a first beam, wherein the first communication scheduling grant is a PUSCH scheduling grant and the first communication transmission is a PUSCH transmission, or wherein the first communication scheduling grant is a PDSCH scheduling grant and the first communication transmission is a PDSCH transmission; and a second communication scheduling grant that schedules a second communication transmission on a second beam, wherein the second communication scheduling grant is a PUSCH scheduling grant and the second communication transmission is a PUSCH transmission, or the second communication scheduling grant is a PDSCH scheduling grant and the second communication transmission is a PDSCH transmission, and the time gap between the first communication transmission and the second communication transmission meets the beam switching capability of the UE.
[0069] although Figure 4 Example blocks of process 400 are shown, but in some aspects, process 400 may include Figure 4 More blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 400. Additionally or alternatively, two or more of the blocks of process 400 may be executed in parallel.
[0070] Figure 5 5 is a diagram illustrating an example process 500 performed by, for example, a base station according to the present disclosure. The example process 500 is a diagram in which a base station (e.g., Figure 1 , Figure 2 and / or FIG. 3A to FIG. 3C An example of a BS 110) shown and described in one or more of the above and the like performing operations associated with UE beam switching capability reporting and associated scheduling.
[0071] like Figure 5 As shown, in some aspects, process 500 may include receiving an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located (block 510). For example, a base station (e.g., using transmit processor 220, receive processor 238, controller / processor 240, memory 242, etc.) may receive an indication of the beam switching capability of the UE as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located, as described above.
[0072] like Figure 5As further shown in FIG. 5 , in some aspects, process 500 may include sending one or more scheduling grants based at least in part on the beam switching capability of the UE (block 520). For example, the base station (e.g., using transmit processor 220, receive processor 238, controller / processor 240, memory 242, etc.) may send one or more scheduling grants based at least in part on the beam switching capability of the UE, as described above.
[0073] Process 500 may include additional aspects, such as any single aspect and / or any combination of aspects described below or in combination with one or more other processes described elsewhere herein.
[0074] In a first aspect, process 500 includes refraining from sending multiple back-to-back communication scheduling grants based at least in part on determining that time gaps between the multiple back-to-back communication scheduling grants do not satisfy beam switching capabilities of a UE.
[0075] In the second aspect, alone or in combination with the first aspect, sending one or more scheduling authorizations includes sending multiple back-to-back communication scheduling authorizations, which include: a first communication scheduling authorization, which schedules a first communication transmission on a first beam, wherein the first communication scheduling authorization is a PUSCH scheduling authorization and the first communication transmission is a PUSCH transmission, or wherein the first communication scheduling authorization is a PDSCH scheduling authorization and the first communication transmission is a PDSCH transmission; and a second communication scheduling authorization, which schedules a second communication transmission on a second beam, wherein the second communication scheduling authorization is a PUSCH scheduling authorization and the second communication transmission is a PUSCH transmission, or wherein the second communication scheduling authorization is a PDSCH scheduling authorization and the second communication transmission is a PDSCH transmission, and the time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
[0076] although Figure 5 Example blocks of process 500 are shown, but in some aspects, process 500 may include more Figure 5 More blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 500. Additionally or alternatively, two or more of the blocks of process 500 may be executed in parallel.
[0077] A summary of some aspects of the disclosure is provided below.
[0078] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: sending an indication of the UE's beam switching capability as a multiple of a physical layer timing unit of a wireless network in which the UE is located; and receiving one or more scheduling authorizations based at least in part on the UE's beam switching capability.
[0079] Aspect 2: The method according to Aspect 1, wherein the one or more scheduling grants include multiple back-to-back communication scheduling grants; and wherein the multiple back-to-back communication scheduling grants include a first communication scheduling grant that schedules a first communication transmission on a first beam. Aspect 3: The method according to Aspect 2, wherein the first communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the first communication transmission is a PUSCH transmission. Aspect 4: The method according to Aspect 2, wherein the first communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the first communication transmission is a PDSCH transmission.
[0080] Aspect 5: A method according to any one of Aspects 2 to 4, wherein the multiple back-to-back communication scheduling grants include a second communication scheduling grant for scheduling a second communication transmission on a second beam. Aspect 6: A method according to Aspect 5, wherein the second communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the second communication transmission is a PUSCH transmission. Aspect 7: A method according to Aspect 5, wherein the second communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the second communication transmission is a PDSCH transmission. Aspect 8: A method according to any one of Aspects 5 to 7, wherein the time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
[0081] Aspect 9: A method of wireless communication performed by a base station (BS), comprising: receiving an indication of a beam switching capability of a user equipment (UE) as a multiple of a physical layer timing unit of a wireless network in which the BS and the UE are located; and sending one or more scheduling authorizations based at least in part on the beam switching capability of the UE.
[0082] Aspect 10: The method according to aspect 9 further includes: avoiding sending multiple back-to-back communication scheduling grants based at least in part on determining that the time gap between the multiple back-to-back communication scheduling grants does not meet the beam switching capability of the UE. Aspect 11: The method according to aspect 9 or aspect 10, wherein sending one or more scheduling grants includes: sending multiple back-to-back communication scheduling grants including a first communication scheduling grant, the first communication scheduling grant scheduling a first communication transmission on a first beam.
[0083] Aspect 12: The method according to Aspect 11, wherein the first communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the first communication transmission is a PUSCH transmission. Aspect 13: The method according to Aspect 11, wherein the first communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the first communication transmission is a PDSCH transmission. Aspect 14: The method according to any one of Aspects 11 to 13, wherein the multiple back-to-back communication scheduling grants include a second communication scheduling grant for scheduling a second communication transmission on a second beam.
[0084] Aspect 15: The method according to Aspect 14, wherein the second communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the second communication transmission is a PUSCH transmission. Aspect 16: The method according to Aspect 14, wherein the second communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the second communication transmission is a PDSCH transmission. Aspect 17: The method according to any one of Aspects 14 to 16, wherein the time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
[0085] Aspect 18: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 1 to 8. Aspect 19: An apparatus for wireless communication, comprising: a memory and one or more processors coupled to the memory, the processor and the one or more processors being configured to perform the method according to one or more of aspects 1 to 8.
[0086] Aspect 20: An apparatus for wireless communication, comprising: at least one component for executing the method according to one or more of aspects 1 to 8. Aspect 21: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to execute the method according to one or more of aspects 1 to 8. Aspect 22: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to execute the method according to one or more of aspects 1 to 8.
[0087] Aspect 23: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 9 to 17. Aspect 24: An apparatus for wireless communication, comprising: a memory and one or more processors coupled to the memory, the processor and the one or more processors being configured to perform the method according to one or more of aspects 9 to 17.
[0088] Aspect 25: An apparatus for wireless communication, comprising: at least one component for executing the method according to one or more of aspects 9 to 17. Aspect 26: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to execute the method according to one or more of aspects 9 to 17. Aspect 27: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to execute the method according to one or more of aspects 9 to 17.
[0089] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.
[0090] As used herein, the term "component" is intended to be broadly interpreted as hardware, software, and / or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and / or a combination of hardware and software.
[0091] As used herein, satisfying a threshold may refer to a value that is greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.
[0092] Obviously, the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not a limitation on the various aspects. Therefore, the operation and actions of the systems and / or methods are described without reference to specific software codes. It should be understood that software and hardware can be designed to implement the systems and / or methods based at least in part on the description herein.
[0093] Although the specific combination of features is cited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically cited in the claims and / or not disclosed in the specification. Although each dependent claim listed below can only be directly subordinate to a claim, the disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase referring to the list of items "at least one of..." refers to any combination of those items, including a single member. As an example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and a combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other order of a, b and c).
[0094] Unless explicitly stated, any element, action or instruction used herein should not be interpreted as critical or essential. In addition, as used herein, the articles "one" and "an" are intended to include one or more items and 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 items (e.g., related items, unrelated items, a combination of related items and unrelated items), and can be used interchangeably with "one or more". In the case of only one item being meant, the phrase "only one" or similar language is used. In addition, as used herein, the terms "has", "have", "having", etc. are intended to be open terms. In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated.
Claims
1. A method of wireless communication performed by a user equipment UE, comprising: transmitting an indication of the beam switching capability of the UE, the indication being a multiple of a physical layer timing unit of a maximum subcarrier spacing of a wireless network in which the UE is located, the physical layer timing unit being a constant value that is independent of a symbol duration of an operating frequency on which the UE communicates, and the constant value being a duration; as well as One or more scheduling grants are received based at least in part on the beam switching capability of the UE.
2. The method according to claim 1, wherein: The one or more scheduling grants include a plurality of back-to-back communication scheduling grants; and The multiple back-to-back communication scheduling grants include a first communication scheduling grant for scheduling a first communication transmission on a first beam.
3. The method according to claim 2, wherein: The first communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the first communication transmission is a PUSCH transmission.
4. The method according to claim 2, wherein: The first communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the first communication transmission is a PDSCH transmission.
5. The method according to claim 2, wherein: The plurality of back-to-back communication scheduling grants includes a second communication scheduling grant that schedules a second communication transmission on a second beam.
6. The method according to claim 5, wherein: The second communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the second communication transmission is a PUSCH transmission.
7. The method according to claim 5, wherein: The second communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the second communication transmission is a PDSCH transmission.
8. The method according to claim 5, wherein: A time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
9. A method of wireless communication performed by a base station BS, comprising: receiving an indication of a beam switching capability of a user equipment UE, the indication being a multiple of a physical layer timing unit of a maximum subcarrier spacing of a wireless network in which the BS and the UE are located, the physical layer timing unit being a constant value that is independent of a symbol duration of an operating frequency on which the UE communicates, and the constant value being a duration; as well as One or more scheduling grants are sent based at least in part on the beam switching capability of the UE.
10. The method according to claim 9, further comprising: The sending of the plurality of back-to-back communication scheduling grants is avoided based at least in part on determining that a time gap between the plurality of back-to-back communication scheduling grants does not satisfy the beam switching capability of the UE.
11. The method according to claim 9, wherein: Sending the one or more scheduling grants includes: A plurality of back-to-back communication scheduling grants are sent including a first communication scheduling grant scheduling a first communication transmission on a first beam.
12. The method according to claim 11, wherein: The first communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the first communication transmission is a PUSCH transmission.
13. The method according to claim 11, wherein: The first communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the first communication transmission is a PDSCH transmission.
14. The method according to claim 11, wherein: The plurality of back-to-back communication scheduling grants includes a second communication scheduling grant that schedules a second communication transmission on a second beam.
15. The method according to claim 14, wherein: The second communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the second communication transmission is a PUSCH transmission.
16. The method according to claim 14, wherein: The second communication scheduling grant is a physical downlink shared channel (PDSCH) scheduling grant, and the second communication transmission is a PDSCH transmission.
17. The method according to claim 14, wherein: A time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
18. A user equipment UE for wireless communication, comprising: Memory; as well as One or more processors operably coupled to the memory, the memory and the one or more processors configured to: transmitting an indication of the beam switching capability of the UE, the indication being a multiple of a physical layer timing unit of a maximum subcarrier spacing of a wireless network in which the UE is located, the physical layer timing unit being a constant value that is independent of a symbol duration of an operating frequency on which the UE communicates, and the constant value being a duration; and One or more scheduling grants are received based at least in part on the beam switching capability of the UE.
19. The UE according to claim 18, wherein: The one or more scheduling grants include a plurality of back-to-back communication scheduling grants; and The multiple back-to-back communication scheduling grants include a first communication scheduling grant for scheduling a first communication transmission on a first beam.
20. The UE according to claim 19, wherein: The first communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the first communication transmission is a PUSCH transmission, or The first communication scheduling grant is a physical downlink shared channel PDSCH scheduling grant, and the first communication transmission is a PDSCH transmission.
21. The UE according to claim 19, wherein: The plurality of back-to-back communication scheduling grants includes a second communication scheduling grant that schedules a second communication transmission on a second beam.
22. The UE according to claim 21, wherein: The second communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the second communication transmission is a PUSCH transmission, or The second communication scheduling grant is a physical downlink shared channel PDSCH scheduling grant, and the second communication transmission is a PDSCH transmission.
23. The UE according to claim 21, wherein: A time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
24. A base station BS for wireless communication, comprising: Memory; as well as One or more processors operably coupled to the memory, the memory and the one or more processors configured to: receiving an indication of a beam switching capability of a user equipment UE, the indication being a multiple of a physical layer timing unit of a maximum subcarrier spacing of a wireless network in which the BS and the UE are located, the physical layer timing unit being a constant value that is independent of a symbol duration of an operating frequency on which the UE communicates, and the constant value being a duration; and One or more scheduling grants are sent based at least in part on the beam switching capability of the UE.
25. The BS according to claim 24, wherein: The one or more processors are further configured to: The sending of the plurality of back-to-back communication scheduling grants is avoided based at least in part on determining that a time gap between the plurality of back-to-back communication scheduling grants does not satisfy the beam switching capability of the UE.
26. The BS according to claim 24, wherein: When sending the one or more scheduling grants, the one or more processors are configured to: A plurality of back-to-back communication scheduling grants are sent including a first communication scheduling grant scheduling a first communication transmission on a first beam.
27. The BS according to claim 26, wherein: The first communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the first communication transmission is a PUSCH transmission, or The first communication scheduling grant is a physical downlink shared channel PDSCH scheduling grant, and the first communication transmission is a PDSCH transmission.
28. The BS according to claim 26, wherein: The plurality of back-to-back communication scheduling grants includes a second communication scheduling grant that schedules a second communication transmission on a second beam.
29. The BS according to claim 28, wherein: The second communication scheduling grant is a physical uplink shared channel (PUSCH) scheduling grant, and the second communication transmission is a PUSCH transmission, or The second communication scheduling grant is a physical downlink shared channel PDSCH scheduling grant, and the second communication transmission is a PDSCH transmission.
30. The BS according to claim 28, wherein: A time gap between the first communication transmission and the second communication transmission satisfies the beam switching capability of the UE.
31. A user equipment UE for wireless communication, comprising components for executing the method according to any one of claims 1-8.
32. A base station BS for wireless communication, comprising means for performing the method according to any one of claims 9-17.
33. A non-transitory computer readable medium having program code recorded thereon, wherein: The program code may be executed by one or more processors of a user equipment UE for wireless communication, so that the processors execute the method according to any one of claims 1-8.
34. A non-transitory computer readable medium having program code recorded thereon, wherein: The program code may be executed by one or more processors of a base station BS for wireless communication, so that the processors perform the method according to any one of claims 9-17.
35. A computer program product comprising a computer readable medium having instructions stored thereon, wherein: The instructions may be executed by one or more processors of a user equipment UE for wireless communication, so that the processors execute the method according to any one of claims 1-8.
36. A computer program product comprising a computer readable medium having instructions stored thereon, wherein: The instructions may be executed by one or more processors of a base station BS for wireless communication, so that the processors perform the method according to any one of claims 9-17.
Citation Information
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