User equipment feedback reduction for semi-persistent scheduling
By transmitting the SPS skip indicator between the base station and the user equipment and skipping unnecessary SPS timing, the resource and energy waste caused by SPS feedback is solved, and the efficiency of the wireless communication system is improved.
Patent Information
- Application Number
- CN202180017721.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-01-14
- Filing Date
- 2021-01-15
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2041-01-15
AI Technical Summary
In existing wireless communication systems, the feedback mechanism of semi-persistent scheduling (SPS) timing leads to waste of resources and energy, especially because feedback from unnecessary physical downlink shared channel (PDSCH) transmission increases uplink interference and UE power consumption.
By transmitting an SPS skip indicator between the base station and the user equipment (UE), indicating skip of a particular set of SPS timings, avoiding sending feedback messages associated with these timings, thereby ignoring PDSCH transmissions of these timings.
Resource and energy savings are achieved, unnecessary signaling overhead and UE power consumption are reduced, and communication efficiency is improved.
Smart Images

Figure CN115191135B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 987,173, filed on March 9, 2020, entitled “UE FEEDBACK REDUCTION FOR SPS,” and U.S. Non-Provisional Patent Application No. 17 / 149,510, filed on January 14, 2021, entitled “UE FEEDBACK REDUCTION FOR SEMI-PERSISTENT SCHEDULING,” which are expressly incorporated herein by reference. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatuses for user equipment (UE) feedback reduction for semi-persistent scheduling (SPS). Background Art
[0004] Wireless communication systems are 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 a collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0005] A wireless network may include multiple base stations (BSs) that can support communications for multiple user equipment (UEs). UEs can communicate with a BS via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G NodeB, etc.
[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at municipal, national, regional and even global levels. NR (which may also be referred to as 5G) is a collection of enhancements to the LTE mobile standard released by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), and using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR and other radio access technologies remain useful. Summary of the Invention
[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: receiving a semi-persistent scheduling (SPS) skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; and ignoring at least one SPS opportunity in the set of SPS opportunities by not sending a feedback message associated with the at least one SPS opportunity.
[0008] In some aspects, a method of wireless communication performed by a base station may include: sending an SPS skip indicator to a UE, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include PDSCH transmission; and sending the SPS communication.
[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: receive an SPS skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission; and ignore at least one SPS opportunity in the set of SPS opportunities by not sending a feedback message associated with the at least one SPS opportunity.
[0010] In some aspects, a base station 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 SPS skip indicator to a UE, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission; and send the SPS communication.
[0011] 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 UE, may cause the one or more processors to: receive an SPS skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission; and ignore at least one SPS opportunity in the set of SPS opportunities by not sending a feedback message associated with the at least one SPS opportunity.
[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 base station, may cause the one or more processors to: send an SPS skip indicator to a UE, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission; and send the SPS communication.
[0013] In some aspects, an apparatus for wireless communication may include: a component for receiving an SPS skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include PDSCH transmission; and a component for ignoring at least one SPS opportunity in the SPS opportunity set by not sending a feedback message associated with the at least one SPS opportunity.
[0014] In some aspects, an apparatus for wireless communication may include: a component for sending an SPS skip indicator to a UE, wherein the SPS skip indicator indicates a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include PDSCH transmission; and a component for sending SPS communication.
[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 substantially as described herein with reference to and as illustrated in the accompanying figures 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 concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures for achieving the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, their organization and method of operation, together with the associated advantages, will be better understood from the description below when considered in conjunction with the accompanying drawings. Each of the figures in the 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] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description of the content briefly summarized above can be obtained by reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the description may admit of other equally effective aspects. The same reference numerals in different figures may identify the same or similar elements.
[0018] Figure 1 is a diagram illustrating an example of a wireless network according to various aspects of the present disclosure.
[0019] Figure 2 is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to various aspects of the present disclosure.
[0020] Figure 3 is a diagram illustrating an example of an SPS configuration according to various aspects of the present disclosure.
[0021] Figure 4-Figure 6 is a diagram illustrating an example of UE feedback reduction for SPS according to various aspects of the present disclosure.
[0022] Figure 7 is a diagram illustrating an example process performed, for example, by a user device, according to various aspects of the present disclosure.
[0023] Figure 8 is a diagram illustrating example processes performed, for example, by a base station, according to various aspects of the present disclosure. DETAILED DESCRIPTION
[0024] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art should understand that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement an apparatus or practice method. In addition, the scope of the present disclosure is intended to cover such apparatus and methods that use other structures, functions, or structures and functions in addition to or different from the various aspects of the present disclosure set forth herein to practice. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.
[0025] Several aspects of telecommunications 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, algorithms, etc. (collectively, "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0026] It should be noted that although various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or post-5G (e.g., 6G) RATs.
[0027] Figure 1 is a diagram illustrating an example of a wireless network 100 according to various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, among others. The wireless network 100 may include multiple 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 an NR BS, Node B, gNB, 5G node B (NB), access point, transmit receive 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 that coverage area, depending on the context in which the term is used.
[0028] 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., several kilometers in radius) and may allow unrestricted access to UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow 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, BS 110a may be a macro BS for macrocell 102a, BS 110b may be a pico BS for picocell 102b, and BS 110c may be a femto BS for femtocell 102c. 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.
[0029] 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 with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.) using any suitable transport network.
[0030] 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, relay BS 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, relay base station, relay, etc.
[0031] The wireless network 100 may be a heterogeneous network including different types of BSs, such as 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 impacts on interference in the wireless network 100. For example, a macro BS may have a high 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).
[0032] The 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 directly or indirectly, for example, via a wireless or wired backhaul.
[0033] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), 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 biosensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio, etc.), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.
[0034] Some UEs may be considered 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. that can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide, for example, connectivity 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 Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included within a housing that houses components of UE 120 (such as a processor component, a memory component, etc.). In some aspects, the processor component and the 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, and / or electrically coupled.
[0035] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RATs can also be referred to as radio technologies, air interfaces, etc. Frequencies can also be referred to as carriers, frequency channels, 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.
[0036] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly (e.g., without using base station 110 as an intermediary for communicating with each other) using one or more sidelink channels. For example, the UEs 120 can 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 such cases, the UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.
[0037] Devices of the wireless network 100 can communicate using an electromagnetic spectrum that can be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, devices of the wireless network 100 can communicate using an operating band having a first frequency range (FR1), which can span from 410 MHz to 7.125 GHz, and / or can communicate using an operating band having a second frequency range (FR2), which can span 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 "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified by the International Telecommunication Union (ITU). Thus, unless otherwise specifically stated, it should be understood that the term "sub-6 GHz," etc., if used herein, can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specifically stated, it should be understood that the term "millimeter wave," etc., 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 may be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0038] As mentioned above, providing Figure 1 As an example. Other examples can be related to Figure 1 Different than described.
[0039] Figure 2 is a diagram illustrating an example 200 of base station 110 communicating with UE 120 in wireless network 100 in accordance with various aspects of the present disclosure. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, with T31 and R31 being typical.
[0040] At base station 110, transmit processor 220 may receive data for one or more UEs from 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. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) 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 data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 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 upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
[0041] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 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 further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a 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) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, etc. In some aspects, one or more components of the UE 120 may be included within the housing 284 .
[0042] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.
[0043] The 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, etc. The antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. The antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. The 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. The antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmitting and / or receiving components such as Figure 2 One or more antenna elements of one or more components).
[0044] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. If applicable, the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 4-Figure 8 described.
[0045] At base station 110, uplink signals from UE 120 and other UEs may be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include a communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include a scheduler 246 to schedule UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of base station 110 may be included in a modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 4-Figure 8 described.
[0046] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or the like may perform one or more techniques associated with UE feedback reduction for semi-persistent scheduling (SPS), as described in more detail elsewhere herein. Figure 2 Any other component of the Figure 7 The process of 700 Figure 8 800 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. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communications. For example, the one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, conversion, and / or interpretation), may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example, Figure 7 The process of 700 Figure 8 The process 800 and / or operations of other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.
[0047] In some aspects, the UE 120 may include: means for receiving an SPS skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communications, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; means for ignoring at least one SPS opportunity in the set of SPS opportunities by not sending a feedback message associated with the at least one SPS opportunity, etc. In some aspects, such means may include in conjunction with Figure 2 One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and the like.
[0048] In some aspects, the base station 110 may include: means for sending an SPS skip indicator to the UE, the SPS skip indicator indicating SPS opportunities to be skipped for SPS communications, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission; means for sending SPS communications, etc. In some aspects, such means may include combining Figure 2One 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.
[0049] Although Figure 2 The blocks in FIG. 2 are shown as distinct components, but the functionality described above with respect to the blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0050] As mentioned above, providing Figure 2 As an example. Other examples can be related to Figure 2 Different than described.
[0051] Figure 3 is a diagram illustrating an example 300 of an SPS configuration according to various aspects of the present disclosure. As shown, a base station 110 and a UE 120 may communicate with each other.
[0052] As shown in the reference numeral 305, the base station 110 may send an SPS configuration 305 to the UE 120 to configure SPS communication, which may include a set of SPS opportunities 305 for the UE 120 (shown as "SPS 1," "SPS 2," "SPS 3," and "SPS 4"). The SPS may be used to schedule a set of downlink transmissions (referred to as SPS communication) for the UE 120, each downlink transmission corresponding to an SPS opportunity in the set of SPS opportunities, without requiring a separate downlink grant (e.g., in a DCI) for each downlink transmission, thereby saving signaling overhead. For example, the SPS configuration may indicate a set of resources for the set of SPS opportunities, such as time resources (e.g., according to a configured periodicity and / or time offset), frequency resources, physical resource blocks (PRBs), etc. Additionally or alternatively, the SPS configuration may indicate a set of transmission parameters for the set of SPS opportunities, such as a modulation and coding scheme (MCS), resource allocation, transport block (TB) size, beam, transmission configuration indication (TCI) state, etc. In some aspects, the base station 110 may activate the SPS configuration by sending an activation DCI 310 to the UE 120. Upon receiving the activation DCI 310, the UE 120 may begin monitoring for SPS transmissions scheduled according to the SPS configuration.
[0053] As shown in reference numeral 315, UE 120 may send a feedback message to base station 110 based at least in part on each SPS opportunity of SPS configuration 305. The feedback message may include an acknowledgement (shown as "A" and interchangeably referred to as "ACK"), a negative acknowledgement (shown as "N" and interchangeably referred to as "NACK"), and the like. ACK and NACK may be, for example, hybrid automatic repeat request (HARQ) feedback messages. Some SPS opportunities may not include PDSCH transmissions. For example, some SPS opportunities may be configured for retransmissions of previously failed transmissions, and if the previous transmission was successful, the SPS opportunity may not include data. In SPS, UE 120 may send a NACK feedback message associated with an SPS opportunity (e.g., SPS 2 and / or SPS 3) even if the SPS opportunity does not include PDSCH transmissions.
[0054] This may increase uplink interference by increasing the number of uplink transmissions that may already be present. Additionally or alternatively, sending a feedback message associated with an SPS opportunity that does not include a PDSCH transmission may increase UE power consumption as a result of the transmission itself and because the UE must remain in an active state from the start of the SPS opportunity until the retransmission timer expires after the UE sends the feedback message.
[0055] Aspects of the various techniques and apparatus described herein can enable the base station 110 to provide an SPS skip indicator to the UE 120, which indicates a set of SPS opportunities to be skipped for SPS communications. The set of SPS opportunities to be skipped may include at least one SPS opportunity that will not include a PDSCH transmission. In this way, the UE can ignore the indicated SPS opportunity by not providing a feedback message associated with the indicated SPS opportunity, by not performing SPS decoding associated with the indicated SPS opportunity, etc. This can contribute to saving resources and energy because the reactivation DCI does not need to be sent to the UE, the feedback message is not sent, and the SPS opportunity is not decoded. In some aspects, the techniques described herein can enable the base station 110 to indicate multiple SPS opportunities to be skipped, multiple SPS configurations with SPS opportunities to be skipped, etc. In this way, further resource and energy savings can be achieved without additional signaling overhead.
[0056] As mentioned above, providing Figure 3 As an example. Other examples can be related to Figure 3 Different than described.
[0057] Figure 4 is a diagram illustrating an example 400 of UE feedback reduction for SPS in accordance with various aspects of the present disclosure.As shown, a base station 110 and a UE 120 may be in communication with each other.
[0058] As shown at reference numeral 405, base station 110 may send an SPS configuration to UE 120 to configure SPS communication, which may include a set of SPS opportunities (shown as "SPS 1," "SPS 2," "SPS 3," and "SPS 4"). As shown at reference numeral 410, base station 110 may send an activation DCI to UE 120 to activate the SPS configuration. Upon receiving the activation DCI, UE 120 may begin monitoring for SPS transmissions scheduled according to the SPS configuration.
[0059] As shown by reference numeral 415, the base station 110 may transmit and the UE 120 may receive an SPS skip indicator that indicates a set of SPS opportunities to be skipped for SPS communications. The set of SPS opportunities to be skipped may include at least one SPS opportunity that will not include a PDSCH transmission. In some aspects, the SPS skip indicator may indicate at least one additional set of SPS opportunities to be skipped.
[0060] In some aspects, the SPS skip indicator may be carried in a medium access control (MAC) control element (CE) (shown as "MAC-CE" 420). The MAC-CE 420 may be carried in a PDSCH transmission. In some aspects, as shown, the PDSCH transmission may include an SPS PDSCH transmission (SPS 1).
[0061] In some aspects, such as Figure 4 As shown, the SPS skip indicator may indicate an initial SPS opportunity to occur in the set of SPS opportunities to be skipped and the number of SPS opportunities in the set of SPS opportunities to be skipped (shown as "#"). In some aspects, the initial SPS opportunity to occur may be indicated relative to the action time of the MAC-CE. The action time of the MAC-CE may include at least one of the following: the end of the ACK message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE. In some aspects, the SPS skip indicator may not indicate the initial SPS opportunity to occur in the set of SPS opportunities to be skipped, in which case the default initial SPS opportunity to occur in the set of SPS opportunities to be skipped may include the next opportunity to occur after the action time of the MAC-CE.
[0062] In some aspects, such as Figure 4As shown, the SPS skip indicator can indicate a start time associated with the SPS opportunity set to be skipped and a duration of a time period associated with the SPS opportunity set to be skipped. In some aspects, the start time can be indicated relative to an action time of the MAC-CE. In some aspects, the start time can include a time occurring after a specified time period starting at the action time of the MAC-CE. In some aspects, the start time can be indicated relative to a start time of a frame associated with the MAC-CE or the action time of the MAC-CE.
[0063] In some aspects, such as Figure 4 As shown, the SPS skip indicator may include a bitmap indicating a set of SPS opportunities to be skipped. In some aspects, the bitmap may correspond to a number of SPS opportunities associated with the next period occurring after the period containing the action time of the MAC-CE. The bitmap may correspond to a specified number of SPS opportunities occurring after the action time of the MAC-CE. In some aspects, the specified number may include a fixed number configured in a radio resource control (RRC) message, a dynamically indicated number indicated in the MAC-CE, and the like.
[0064] As shown by reference numeral 425, UE 120 may send feedback messages to base station 110 based at least in part on some SPS opportunities of SPS configuration 405. The feedback messages may include acknowledgements (shown as "A" and interchangeably referred to as "ACK"), negative acknowledgements (shown as "N" and interchangeably referred to as "NACK"), etc. The ACKs and NACKs may be, for example, HARQ feedback messages.
[0065] As indicated by reference numeral 430, the UE 120 may ignore at least one SPS opportunity in the indicated set of SPS opportunities. The UE 120 may ignore the SPS opportunity by not sending a feedback message associated with the SPS opportunity, by not performing SPS decoding associated with the SPS opportunity, etc. In some aspects, as described above, the SPS skip indicator may indicate at least one additional set of SPS opportunities to be skipped. The at least one additional set of SPS opportunities may correspond to the SPS configuration associated with reference numeral 405 and / or another SPS configuration. In some aspects, the UE 120 may ignore each SPS opportunity in the at least one additional set of SPS opportunities to be skipped.
[0066] As mentioned above, providing Figure 4 As an example. Other examples can be related to Figure 4 Different than described.
[0067] Figure 5is a diagram illustrating an example 500 of UE feedback reduction for SPS in accordance with various aspects of the present disclosure. As shown, a base station 110 and a UE 120 may be in communication with each other.
[0068] As shown at reference numeral 505, base station 110 may send an SPS configuration to UE 120 to configure SPS communication, which may include a set of SPS opportunities (shown as "SPS 1," "SPS 2," "SPS 3," and "SPS 4"). As shown at reference numeral 510, base station 110 may send an activation DCI to UE 120 to activate the SPS configuration. Upon receiving the activation DCI, UE 120 may begin monitoring for SPS transmissions scheduled according to the SPS configuration.
[0069] As shown by reference numeral 515, the base station 110 may transmit and the UE 120 may receive an SPS skip indicator that indicates a set of SPS opportunities to be skipped for SPS communications. The set of SPS opportunities to be skipped may include at least one SPS opportunity that will not include a PDSCH transmission. In some aspects, the SPS skip indicator may indicate at least one additional set of SPS opportunities to be skipped.
[0070] In some aspects, the SPS skip indicator may be carried in a DCI transmission. The DCI transmission may be carried in any set of control resources, a synchronization signal, etc. In some aspects, the base station 110 may send and the UE 120 may receive an RRC message that configures one or more data fields in the DCI transmission to carry the SPS skip indicator.
[0071] In some aspects, the DCI transmission may include a traditional DCI format specified by a wireless communication standard for scheduling at least one of an uplink signal or a downlink signal. For example, in some aspects, the DCI transmission may include an activation DCI shown by reference numeral 510. In some aspects, as shown by reference numeral 520, the DCI transmission may include a dedicated DCI format dedicated to carrying an SPS skip indicator. In some aspects, the DCI transmission does not affect one or more discontinuous reception (DRX) timers. The one or more DRX timers may include a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX hybrid automatic repeat request (HARQ) downlink retransmission timer, a DRX HARQ uplink retransmission timer, and the like.
[0072] In some aspects, as indicated by reference numeral 525, the UE 120 may transmit and the base station 110 may receive a dedicated feedback message including an acknowledgment or negative acknowledgment (A / N) associated with receiving the DCI transmission. In some aspects, the dedicated feedback message may correspond to at least one of: HARQ-ACK codebook type 1, HARQ-ACK codebook type 2, HARQ-ACK codebook type 3, etc.
[0073] In some aspects, the SPS skip indicator may indicate an initial SPS opportunity to occur in a set of SPS opportunities to be skipped. The initial SPS opportunity to occur may be indicated relative to an action time of a DCI transmission. In some aspects, as indicated by reference numeral 530, the initial SPS opportunity to occur may include an SPS opportunity that occurs a specified number (shown as "X") of symbols after the end of the DCI transmission. The DCI transmission may be associated with or not associated with a dedicated feedback message.
[0074] As indicated by reference numeral 535, in some aspects, the initial SPS opportunity to occur may include an SPS opportunity occurring a specified number X of symbols after the end of an uplink feedback transmission associated with the DCI transmission (shown as "Dedicated A / N"). In some aspects, the specified number X of symbols may be based at least in part on at least one of: a subcarrier spacing (SCS) of a scheduled component carrier (CC) carrying the DCI transmission, an SCS of a CC carrying SPS communications, an SCS of a CC carrying uplink feedback transmission associated with the DCI transmission, etc.
[0075] In some aspects, the initial SPS opportunity to occur may be indicated relative to an action time of the MAC-CE. The action time of the MAC-CE may include at least one of the following: an end of an acknowledgement (ACK) message corresponding to the MAC-CE, or an end of a specified time period beginning after the end of the ACK message corresponding to the MAC-CE. In some aspects, the SPS skip indicator may not indicate an initial SPS opportunity to occur among the SPS opportunities to be skipped, in which case the configured default initial SPS opportunity to occur among the SPS opportunities to be skipped may include a next opportunity to occur after the action time of the MAC-CE.
[0076] In some aspects, the start time associated with the SPS opportunity set to be skipped can be indicated relative to the action time of the MAC-CE. The start time can include a time occurring after a specified time period starting at the action time of the MAC-CE. In some aspects, the start time can be indicated relative to the start time of the frame associated with the MAC-CE.
[0077] In some aspects, the bitmap indicating the set of SPS opportunities to be skipped may correspond to a number of SPS opportunities associated with the next period occurring after the period containing the action time of the MAC-CE. In some aspects, the bitmap may correspond to a specified number of SPS opportunities occurring after the action time of the MAC-CE. The specified number may include a fixed number configured in an RRC message, a dynamically indicated number indicated in the MAC-CE, etc.
[0078] As indicated by reference numeral 540, UE 120 may send feedback messages to base station 110 based at least in part on some of the SPS opportunities of SPS configuration 505. As indicated by reference numeral 545, UE 120 may ignore at least one SPS opportunity in the indicated set of SPS opportunities. UE 120 may ignore the SPS opportunity by not sending a feedback message associated with the SPS opportunity, by not performing SPS decoding associated with the SPS opportunity, etc. In some aspects, as described above, the SPS skip indicator may indicate at least one additional set of SPS opportunities to be skipped. The at least one additional set of SPS opportunities may correspond to the SPS configuration associated with reference numeral 505 and / or another SPS configuration. In some aspects, UE 120 may ignore each SPS opportunity in the at least one additional set of SPS opportunities to be skipped.
[0079] As mentioned above, providing Figure 5 As an example. Other examples can be related to Figure 5 Different than described.
[0080] Figure 6 is a diagram illustrating an example 600 of UE feedback reduction for SPS in accordance with various aspects of the present disclosure. As shown, a base station 110 and a UE 120 may be in communication with each other.
[0081] As shown at reference numeral 605, base station 110 may send an SPS configuration to UE 120 to configure SPS communication, which may include a set of SPS opportunities (shown as "SPS 1," "SPS 2," "SPS 3," and "SPS 4"). As shown at reference numeral 610, base station 110 may send an activation DCI to UE 120 to activate the SPS configuration. Upon receiving the activation DCI, UE 120 may begin monitoring for SPS transmissions scheduled according to the SPS configuration.
[0082] As shown by reference numeral 615, the base station 110 may transmit and the UE 120 may receive an SPS skip indicator that indicates a set of SPS opportunities to be skipped for SPS communications. The set of SPS opportunities to be skipped may include at least one SPS opportunity that will not include a PDSCH transmission. In some aspects, the SPS skip indicator may indicate at least one additional set of SPS opportunities to be skipped.
[0083] In some aspects, the SPS skip indicator may be indicated by a downlink sequence. The downlink sequence may include a demodulation reference signal (shown as DMRS 620), a channel state information reference signal, etc. In some aspects, the downlink sequence may be carried in a resource allocation associated with an SPS opportunity.
[0084] like Figure 6 As shown, the downlink sequence may include a DMRS 620 carried in one or more symbols of the SPS opportunity to be skipped (shown as SPS 2). In some aspects, the one or more symbols of the SPS opportunity SPS 2 are the last one or more symbols of the SPS opportunity SPS 2. In some aspects, the downlink sequence is carried outside of the resource allocation associated with the SPS opportunity SPS 2.
[0085] As shown by reference numeral 625, the UE 120 may transmit and the base station 110 may receive a dedicated feedback message (shown as "Dedicated A / N") that includes an acknowledgment or a negative acknowledgment associated with receiving the downlink sequence. In some aspects, the dedicated feedback message may correspond to HARQ-ACK codebook type 1, HARQ-ACK codebook type 2, HARQ-ACK codebook type 3, etc.
[0086] like Figure 6 As shown, the set of SPS opportunities to be skipped indicated by the downlink sequence may include SPS opportunity SPS 2 associated with the downlink sequence. In some aspects, the set of SPS opportunities to be skipped indicated by the downlink sequence may include multiple SPS opportunities associated with the downlink sequence.
[0087] In some aspects, different downlink sequences may correspond to different sets of SPS opportunities to be skipped. Figure 6 As shown in conjunction with reference numeral 615, the first downlink sequence (shown as "sequence 1") can indicate SPS 2 as the SPS opportunity to be skipped, while the second downlink sequence (shown as "sequence 2") can indicate SPS 3 as the SPS opportunity to be skipped.
[0088] In some aspects, a downlink sequence may indicate a first start time associated with a set of SPS opportunities to be skipped and a first duration of a time period associated with the set of SPS opportunities to be skipped. Another downlink sequence may indicate a second start time associated with a set of SPS opportunities to be skipped and a second duration of a time period associated with the set of SPS opportunities to be skipped.
[0089] In some aspects, the SPS skip indicator may indicate an initial SPS opportunity to occur in a set of SPS opportunities to be skipped. The initial SPS opportunity to occur may be indicated relative to the action time of the downlink sequence. In some aspects, the initial SPS opportunity to occur may include an SPS opportunity that occurs a specified number of symbols after the end of the downlink sequence. In some aspects, the download sequence may be associated with a dedicated feedback message (dedicated A / N). In some aspects, the download sequence may not be associated with a dedicated feedback message.
[0090] In some aspects, an initial SPS opportunity to occur may comprise an SPS opportunity occurring a specified number of symbols after the end of an uplink feedback transmission associated with a downlink sequence.
[0091] As indicated by reference numeral 630, UE 120 may send feedback messages to base station 110 based at least in part on some of the SPS opportunities of SPS configuration 605. As indicated by reference numeral 635, UE 120 may ignore at least one SPS opportunity in the indicated set of SPS opportunities. UE 120 may ignore the SPS opportunity by not sending a feedback message associated with the SPS opportunity, by not performing SPS decoding associated with the SPS opportunity, etc. In some aspects, as described above, the SPS skip indicator may indicate at least one additional set of SPS opportunities to be skipped. The at least one additional set of SPS opportunities may correspond to the SPS configuration associated with reference numeral 605 and / or another SPS configuration. In some aspects, UE 120 may ignore each SPS opportunity in the at least one additional set of SPS opportunities to be skipped.
[0092] As mentioned above, providing Figure 6 As an example. Other examples can be related to Figure 6 Different than described.
[0093] Figure 7 is a diagram illustrating an example process 700, performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 700 is an example of a UE (eg, UE 120, etc.) performing operations associated with UE feedback reduction for SPS.
[0094] like Figure 7As shown, in some aspects, process 700 may include receiving an SPS skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities for SPS communications to be skipped, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission (block 710). For example, a UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive an SPS skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities for SPS communications to be skipped, as described above. In some aspects, the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission.
[0095] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include ignoring at least one SPS opportunity in the set of SPS opportunities by not sending a feedback message associated with the at least one SPS opportunity (block 720). For example, the UE (e.g., using transmit processor 264, controller / processor 280, memory 282, etc.) may send feedback messages associated with SPS opportunities with PDSCH transmissions and may ignore at least one SPS opportunity in the set of SPS opportunities by not sending a feedback message associated with the at least one SPS opportunity, as described above.
[0096] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.
[0097] In the first aspect, ignoring at least one SPS opportunity further comprises not performing SPS decoding associated with the at least one SPS opportunity.
[0098] In a second aspect, alone or in combination with the first aspect, the SPS skip indicator indicates at least one additional set of SPS opportunities to be skipped, and the process 700 includes ignoring each SPS opportunity in the at least one additional set of SPS opportunities to be skipped.
[0099] In a third aspect, alone or in combination with one or more of the first and second aspects, the SPS skip indicator indicates: an initial SPS opportunity to occur in a set of SPS opportunities to be skipped; and a number of SPS opportunities in the set of SPS opportunities to be skipped.
[0100] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the SPS skip indicator indicates: a start time associated with a set of SPS opportunities to be skipped, and a duration of a time period associated with the set of SPS opportunities to be skipped.
[0101] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped.
[0102] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, an SPS skip indicator is carried in a MAC-CE.
[0103] In a seventh aspect, alone or in combination with the sixth aspect, a MAC-CE is carried in a PDSCH transmission.
[0104] In an eighth aspect, alone or in combination with the seventh aspect, the PDSCH transmission comprises an SPS PDSCH transmission.
[0105] In a ninth aspect, alone or in combination with one or more of the seventh to eighth aspects, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of the MAC-CE.
[0106] In the tenth aspect, alone or in combination with the ninth aspect, the action time of the MAC-CE includes at least one of the following: the end of the ACK message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0107] In the eleventh aspect, alone or in combination with one or more of the sixth to seventh aspects, the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunity to be skipped, and the default initial SPS opportunity to occur in the SPS opportunity to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0108] In a twelfth aspect, alone or in combination with one or more of the sixth to seventh aspects, the SPS skip indicator indicates a start time associated with a set of SPS opportunities to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0109] In a thirteenth aspect, alone or in combination with the twelfth aspect, the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0110] In a fourteenth aspect, alone or in combination with the twelfth aspect, the start time is indicated relative to a start time of a frame associated with the MAC-CE or an action time of the MAC-CE.
[0111] In a fifteenth aspect, alone or in combination with one or more of the sixth to seventh aspects, the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of a MAC-CE.
[0112] In a sixteenth aspect, alone or in combination with the fifteenth aspect, the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0113] In a seventeenth aspect, alone or in combination with the sixteenth aspect, the specified number comprises a fixed number configured in an RRC message.
[0114] In an eighteenth aspect, alone or in combination with the sixteenth aspect, the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0115] In a nineteenth aspect, alone or in combination with the first aspect, an SPS skip indicator is carried in a DCI transmission.
[0116] In a twentieth aspect, alone or in combination with the nineteenth aspect, process 700 includes receiving a radio resource control message from a base station, the radio resource control message configuring one or more data fields in a DCI transmission to carry an SPS skip indicator.
[0117] In a twenty-first aspect, alone or in combination with one or more of the nineteenth to twentieth aspects, the DCI transmission comprises a DCI format that schedules at least one of an uplink signal or a downlink signal.
[0118] In a twenty-second aspect, alone or in combination with one or more of aspects nineteen to twenty-first, the DCI transmission comprises a dedicated DCI format.
[0119] In aspect 23, alone or in combination with aspect 22, the DCI transmission does not affect one or more DRX timers, the one or more DRX timers including at least one of: a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX HARQ downlink retransmission timer, a DRX HARQ uplink retransmission timer, or a combination thereof.
[0120] In a twenty-fourth aspect, alone or in combination with one or more of aspects twenty-second to twenty-third, process 700 comprises sending a dedicated feedback message to a base station, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving a DCI transmission.
[0121] In a twenty-fifth aspect, alone or in combination with the twenty-fourth aspect, the dedicated feedback message corresponds to at least one of: HARQ-ACK codebook type one, HARQ-ACK codebook type two, or HARQ-ACK codebook type three.
[0122] In aspect twenty-six, alone or in combination with one or more of aspects nineteen to twenty-fifth, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of the MAC-CE.
[0123] In aspect 27, alone or in combination with aspect 26, the action time of the MAC-CE includes at least one of: the end of the ACK message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0124] In the twenty-eighth aspect, alone or in combination with the nineteenth aspect, the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and the configured default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0125] In a twenty-ninth aspect, alone or in combination with one or more of aspects nineteen to twenty-eight, the SPS skip indicator indicates a start time associated with a set of SPS opportunities to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0126] In a thirtieth aspect, alone or in combination with the twenty-ninth aspect, the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0127] In the thirty-first aspect, alone or in combination with one or more of the twenty-ninth to thirtieth aspects, the start time is indicated relative to a start time of a frame associated with the MAC-CE.
[0128] In aspect 32, alone or in combination with one or more of aspects 19 to 31, the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of a MAC-CE.
[0129] In a thirty-third aspect, alone or in combination with the thirty-second aspect, the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0130] In a thirty-fourth aspect, alone or in combination with the thirty-third aspect, the specified number comprises a fixed number configured in a radio resource control message.
[0131] In a thirty-fifth aspect, alone or in combination with the thirty-third aspect, the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0132] In a thirty-sixth aspect, alone or in combination with the nineteenth aspect, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a DCI transmission.
[0133] In a thirty-seventh aspect, alone or in combination with the thirty-sixth aspect, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the DCI transmission.
[0134] In a thirty-eighth aspect, alone or in combination with the thirty-seventh aspect, the DCI transmission is associated with a dedicated feedback message.
[0135] In a thirty-ninth aspect, alone or in combination with the thirty-seventh aspect, the DCI transmission is not associated with a dedicated feedback message.
[0136] In the fortieth aspect, alone or in combination with one or more of aspects thirty-seven to thirty-nine, the specified number of symbols is based at least in part on at least one of: the SCS of the scheduling CC carrying the DCI transmission, the SCS of the CC carrying the SPS communication, the SCS of the CC carrying the uplink feedback transmission associated with the DCI transmission, or a combination thereof.
[0137] In the forty-first aspect, alone or in combination with one or more of aspects thirty-seven to fortieth, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of an uplink feedback transmission associated with the DCI transmission.
[0138] In aspect 42, alone or in combination with aspect 41, the specified number of symbols is based at least in part on at least one of: the SCS of the scheduling CC carrying the DCI transmission, the SCS of the CC carrying the SPS communication, the SCS of the CC carrying the uplink feedback message associated with the DCI transmission, or a combination thereof.
[0139] In a forty-third aspect, alone or in combination with the first aspect, an SPS skip indicator is indicated by a downlink sequence.
[0140] In a forty-fourth aspect, alone or in combination with the forty-third aspect, the downlink sequence comprises at least one of: a demodulation reference signal, a channel state information reference signal, or a combination thereof.
[0141] In a 45th aspect, alone or in combination with one or more of aspects 43 to 44, a downlink sequence is carried in a resource allocation associated with at least one SPS opportunity.
[0142] In a forty-sixth aspect, alone or in combination with the forty-fifth aspect, the downlink sequence comprises a demodulation reference signal carried in one or more symbols in at least one SPS opportunity.
[0143] In a forty-seventh aspect, alone or in combination with the forty-sixth aspect, the one or more symbols in the at least one SPS opportunity are the last one or more symbols in the at least one SPS opportunity.
[0144] In a 48th aspect, alone or in combination with one or more of aspects 43 to 45, a downlink sequence is carried outside of a resource allocation associated with at least one SPS opportunity.
[0145] In a forty-ninth aspect, alone or in combination with one or more of aspects forty-third to forty-eight, process 700 comprises sending a dedicated feedback message to a base station, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving a downlink sequence.
[0146] In the fiftieth aspect, alone or in combination with the forty-ninth aspect, the dedicated feedback message corresponds to at least one of: HARQ-ACK codebook type one, HARQ-ACK codebook type two, or HARQ-ACK codebook type three.
[0147] In the fifty-first aspect, alone or in combination with one or more of the forty-third to fiftieth aspects, the set of SPS opportunities to be skipped indicated by the downlink sequence includes SPS opportunities associated with the downlink sequence.
[0148] In a fifty-second aspect, alone or in combination with one or more of aspects forty-third to fifty-first, the set of SPS opportunities to be skipped indicated by the downlink sequence comprises a plurality of SPS opportunities associated with the downlink sequence.
[0149] In aspect fifty-third, alone or in combination with one or more of aspects forty-third to fifty-second, a downlink sequence indicates a first start time associated with a set of SPS opportunities to be skipped and a first duration of a time period associated with the set of SPS opportunities to be skipped, and another downlink sequence indicates a second start time associated with the set of SPS opportunities to be skipped and a second duration of the time period associated with the set of SPS opportunities to be skipped.
[0150] In aspect fifty-four, alone or in combination with one or more of aspects forty-three to fifty-three, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a downlink sequence.
[0151] In a fifty-fifth aspect, alone or in combination with the fifty-fourth aspect, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the downlink sequence.
[0152] In a fifty-sixth aspect, alone or in combination with the fifty-fifth aspect, the download sequence is associated with a dedicated feedback message.
[0153] In a fifty-seventh aspect, alone or in combination with the fifty-fifth aspect, the download sequence is not associated with a dedicated feedback message.
[0154] In a fifty-eighth aspect, alone or in combination with the fifty-fourth aspect, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the uplink feedback transmission associated with the downlink sequence.
[0155] although Figure 7 Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 7. In some embodiments, the process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of the blocks of process 700 may be performed in parallel.
[0156] Figure 8 is a diagram illustrating an example process 800, performed, for example, by a base station, in accordance with various aspects of the present disclosure. Example process 800 is an example of operations performed by a base station (eg, base station 110, etc.) associated with UE feedback reduction for SPS.
[0157] like Figure 8As shown, in some aspects, process 800 may include sending an SPS skip indicator to a UE, the SPS skip indicator indicating a set of SPS opportunities for SPS communications to be skipped, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission (block 810). For example, a base station (e.g., using transmit processor 220, controller / processor 240, memory 242, etc.) may send an SPS skip indicator to a UE, the SPS skip indicator indicating a set of SPS opportunities for SPS communications to be skipped, as described above. In some aspects, the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a PDSCH transmission.
[0158] like Figure 8 As further shown in FIG. 8 , in some aspects, process 800 may include transmitting SPS communications (block 820). For example, a base station (e.g., using transmit processor 220, controller / processor 240, memory 242, etc.) may transmit SPS communications, as described above.
[0159] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0160] In a first aspect, the UE is to ignore at least one SPS opportunity by not sending a feedback message associated with the at least one SPS opportunity.
[0161] In a second aspect, alone or in combination with the first aspect, the UE is to ignore at least one SPS opportunity by not performing SPS decoding associated with the at least one SPS opportunity.
[0162] In a third aspect, alone or in combination with one or more of the first and second aspects, the SPS skip indicator indicates at least one additional set of SPS opportunities to be skipped, wherein the UE is to skip each SPS opportunity in the at least one additional set of SPS opportunities to be skipped.
[0163] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the SPS skip indicator indicates: an initial SPS opportunity to occur in the SPS opportunity set to be skipped, and a number of SPS opportunities in the SPS opportunity set to be skipped.
[0164] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the SPS skip indicator indicates: a start time associated with a set of SPS opportunities to be skipped, and a duration of a time period associated with the set of SPS opportunities to be skipped.
[0165] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped.
[0166] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, an SPS skip indicator is carried in a MAC-CE.
[0167] In an eighth aspect, alone or in combination with the seventh aspect, a MAC-CE is carried in a PDSCH transmission.
[0168] In a ninth aspect, alone or in combination with the eighth aspect, the PDSCH transmission comprises an SPS PDSCH transmission.
[0169] In the tenth aspect, alone or in combination with one or more of the seventh to ninth aspects, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to the action time of the MAC-CE.
[0170] In the eleventh aspect, alone or in combination with the tenth aspect, the action time of the MAC-CE includes at least one of the following: the end of the ACK message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0171] In the twelfth aspect, alone or in combination with one or more of the seventh to ninth aspects, the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and the default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0172] In a thirteenth aspect, alone or in combination with one or more of the seventh to twelfth aspects, the SPS skip indicator indicates a start time associated with a set of SPS opportunities to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0173] In a fourteenth aspect, alone or in combination with the thirteenth aspect, the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0174] In a fifteenth aspect, alone or in combination with one or more of the thirteenth to fourteenth aspects, the start time is indicated relative to a start time of a frame associated with the MAC-CE or an action time of the MAC-CE.
[0175] In a sixteenth aspect, alone or in combination with one or more of the seventh to fifteenth aspects, the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of a MAC-CE.
[0176] In a seventeenth aspect, alone or in combination with the sixteenth aspect, the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0177] In an eighteenth aspect, alone or in combination with the seventeenth aspect, the specified number comprises a fixed number configured in an RRC message.
[0178] In a nineteenth aspect, alone or in combination with the seventeenth aspect, the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0179] In a twentieth aspect, alone or in combination with the first aspect, an SPS skip indicator is carried in a DCI transmission.
[0180] In a twenty-first aspect, alone or in combination with the twentieth aspect, process 800 includes sending a radio resource control message to a UE, the radio resource control message configuring one or more data fields in a DCI transmission to carry an SPS skip indicator.
[0181] In a twenty-second aspect, alone or in combination with one or more of the twentieth to twenty-first aspects, the DCI transmission comprises a DCI format that schedules at least one of an uplink signal or a downlink signal.
[0182] In a twenty-third aspect, alone or in combination with one or more of the twentieth to twenty-second aspects, the DCI transmission comprises a dedicated DCI format.
[0183] In aspect 24, alone or in combination with aspect 23, the DCI transmission does not affect one or more DRX timers, wherein the one or more DRX timers include at least one of the following: a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX HARQ downlink retransmission timer, a DRX HARQ uplink retransmission timer, or a combination thereof.
[0184] In a twenty-fifth aspect, alone or in combination with one or more of aspects twenty-third to twenty-fourth, process 800 comprises receiving a dedicated feedback message from a UE, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving a DCI transmission.
[0185] In a twenty-sixth aspect, alone or in combination with the twenty-fifth aspect, the dedicated feedback message corresponds to at least one of: HARQ-ACK codebook type one, HARQ-ACK codebook type two, or HARQ-ACK codebook type three.
[0186] In aspect 27, alone or in combination with one or more of aspects 20 to 26, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to the action time of the MAC-CE.
[0187] In aspect 28, alone or in combination with aspect 27, the action time of the MAC-CE includes at least one of: the end of the ACK message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0188] In aspect 29, alone or in combination with one or more of aspects 20 to 28, the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and the configured default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0189] In a thirtieth aspect, alone or in combination with one or more of the twentieth to twenty-ninth aspects, the SPS skip indicator indicates a start time associated with a set of SPS opportunities to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0190] In the thirty-first aspect, alone or in combination with the thirtieth aspect, the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0191] In a thirty-second aspect, alone or in combination with one or more of the thirtieth to thirty-first aspects, the start time is indicated relative to a start time of a frame associated with the MAC-CE.
[0192] In aspect thirty-third, alone or in combination with one or more of aspects 20 to 32, the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of a MAC-CE.
[0193] In a thirty-fourth aspect, alone or in combination with the thirty-third aspect, the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0194] In the thirty-fifth aspect, alone or in combination with the thirty-fourth aspect, the specified number comprises a fixed number configured in an RRC message.
[0195] In a thirty-sixth aspect, alone or in combination with one or more of the first to thirty-fifth aspects, the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0196] In a thirty-seventh aspect, alone or in combination with the thirty-fourth aspect, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a DCI transmission.
[0197] In a thirty-eighth aspect, alone or in combination with the twentieth aspect, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the DCI transmission.
[0198] In a thirty-ninth aspect, alone or in combination with the thirty-eighth aspect, the DCI transmission is associated with a dedicated feedback message.
[0199] In a 40th aspect, alone or in combination with the 38th aspect, the DCI transmission is not associated with a dedicated feedback message.
[0200] In aspect 41, alone or in combination with one or more of aspects 38 to 40, the specified number of symbols is based at least in part on at least one of: the SCS of the scheduling CC carrying the DCI transmission, the SCS of the CC carrying the SPS communication, the SCS of the CC carrying the uplink feedback transmission associated with the DCI transmission, or a combination thereof.
[0201] In a 42nd aspect, alone or in combination with one or more of aspects 37 to 41, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of an uplink feedback transmission associated with the DCI transmission.
[0202] In aspect 43, alone or in combination with aspect 42, the specified number of symbols is based at least in part on at least one of: the SCS of the scheduling CC carrying the DCI transmission, the SCS of the CC carrying the SPS communication, the SCS of the CC carrying the uplink feedback message associated with the DCI transmission, or a combination thereof.
[0203] In a forty-fourth aspect, alone or in combination with the forty-second aspect, an SPS skip indicator is indicated by a downlink sequence.
[0204] In a forty-fifth aspect, alone or in combination with the forty-fourth aspect, the downlink sequence comprises at least one of: a demodulation reference signal, a channel state information reference signal, or a combination thereof.
[0205] In a 46th aspect, alone or in combination with one or more of aspects 44 to 45, a downlink sequence is carried in a resource allocation associated with at least one SPS opportunity.
[0206] In a forty-seventh aspect, alone or in combination with the forty-sixth aspect, the downlink sequence comprises a demodulation reference signal carried in one or more symbols in at least one SPS opportunity.
[0207] In a 48th aspect, alone or in combination with the 47th aspect, the one or more symbols in the at least one SPS opportunity are the last one or more symbols in the at least one SPS opportunity.
[0208] In a forty-ninth aspect, alone or in combination with the forty-fourth aspect, a downlink sequence is carried outside of a resource allocation associated with at least one SPS opportunity.
[0209] In a fiftieth aspect, alone or in combination with one or more of aspects forty-four to forty-ninth, process 800 comprises receiving a dedicated feedback message from a UE, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving a downlink sequence.
[0210] In the fifty-first aspect, alone or in combination with the fiftieth aspect, the dedicated feedback message corresponds to at least one of: HARQ-ACK codebook type 1, HARQ-ACK codebook type 2, or HARQ-ACK codebook type 3.
[0211] In a fifty-second aspect, alone or in combination with one or more of aspects forty-four to fifty-first, the set of SPS opportunities to be skipped indicated by the downlink sequence comprises SPS opportunities associated with the downlink sequence.
[0212] In a fifty-third aspect, alone or in combination with one or more of aspects forty-four to fifty-second, the set of SPS opportunities to be skipped indicated by the downlink sequence comprises a plurality of SPS opportunities associated with the downlink sequence.
[0213] In aspect fifty-four, alone or in combination with one or more of aspects forty-four to fifty-three, a downlink sequence indicates a first start time associated with a set of SPS opportunities to be skipped and a first duration of a time period associated with the set of SPS opportunities to be skipped, and another downlink sequence indicates a second start time associated with the set of SPS opportunities to be skipped and a second duration of the time period associated with the set of SPS opportunities to be skipped.
[0214] In aspect fifty-fifth, alone or in combination with one or more of aspects forty-four to fifty-four, the SPS skip indicator indicates an initial SPS opportunity to occur in a set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a downlink sequence.
[0215] In a fifty-sixth aspect, alone or in combination with the fifty-fifth aspect, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the downlink sequence.
[0216] In a fifty-seventh aspect, alone or in combination with the fifty-sixth aspect, the download sequence is associated with a dedicated feedback message.
[0217] In a fifty-eighth aspect, alone or in combination with the fifty-sixth aspect, the download sequence is not associated with a dedicated feedback message.
[0218] In aspect fifty-ninth, alone or in combination with one or more of aspects fifty-fifth to fifty-eighth, the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of an uplink feedback transmission associated with a downlink sequence.
[0219] although Figure 8 Example blocks of process 800 are shown, but in some aspects, process 800 may include Figure 8 800. In some embodiments, the process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of the blocks of process 800 may be executed in parallel.
[0220] The following provides an overview of some aspects of the disclosure:
[0221] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving a semi-persistent scheduling (SPS) skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; and ignoring at least one SPS opportunity in the SPS opportunity set by not sending a feedback message associated with the at least one SPS opportunity.
[0222] Aspect 2: The method of aspect 1, wherein ignoring at least one SPS opportunity further comprises not performing SPS decoding associated with the at least one SPS opportunity.
[0223] Aspect 3: The method according to aspect 1 or 2, wherein the SPS skip indicator indicates at least one additional SPS opportunity set to be skipped, wherein the method further comprises ignoring each SPS opportunity in the at least one additional SPS opportunity set to be skipped.
[0224] Aspect 4: The method according to any one of aspects 1-3, wherein the SPS skip indicator indicates: an initial SPS opportunity to occur in the set of SPS opportunities to be skipped; and the number of SPS opportunities in the set of SPS opportunities to be skipped.
[0225] Aspect 5: The method according to any one of aspects 1-4, wherein the SPS skip indicator indicates: a start time associated with the SPS opportunity set to be skipped; and a duration of a time period associated with the SPS opportunity set to be skipped.
[0226] Aspect 6: The method according to any one of aspects 1-5, wherein the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped.
[0227] Aspect 7: The method according to any one of aspects 1-6, wherein the SPS skip indicator is carried in a medium access control (MAC) control element (CE).
[0228] Aspect 8: The method according to aspect 7, wherein the MAC-CE is carried in the PDSCH transmission.
[0229] Aspect 9: The method according to aspect 8, wherein the PDSCH transmission includes SPS PDSCH transmission.
[0230] Aspect 10: The method according to aspect 7 or 8, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a MAC-CE.
[0231] Aspect 11: A method as described in Aspect 10, wherein the action time of the MAC-CE includes at least one of the following: the end of an acknowledgment (ACK) message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0232] Aspect 12: A method as described in Aspect 7 or 8, wherein the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and wherein the default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0233] Aspect 13: The method according to aspect 7 or 8, wherein the SPS skip indicator indicates a start time associated with the SPS opportunity set to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0234] Aspect 14: The method of aspect 13, wherein the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0235] Aspect 15: The method of aspect 13, wherein the start time is indicated relative to a start time of a frame associated with the MAC-CE or an action time of the MAC-CE.
[0236] Aspect 16: The method of aspect 7 or 8, wherein the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of the MAC-CE.
[0237] Aspect 17: The method of aspect 16, wherein the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0238] Aspect 18: The method of aspect 17, wherein the specified number comprises a fixed number configured in a radio resource control message.
[0239] Aspect 19: The method according to aspect 17, wherein the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0240] Aspect 20: The method of aspect 1, wherein the SPS skip indicator is carried in downlink control information (DCI) transmission.
[0241] Aspect 21: The method according to Aspect 20 further includes: receiving a radio resource control message from a base station, the radio resource control message configuring one or more data fields in the DCI transmission to carry an SPS skip indicator.
[0242] Aspect 22: The method of any one of aspects 20 or 21, wherein the DCI transmission comprises a DCI format that schedules at least one of an uplink signal or a downlink signal.
[0243] Aspect 23: The method according to any one of aspects 20-22, wherein the DCI transmission comprises a dedicated DCI format.
[0244] Aspect 24: A method as described in Aspect 23, wherein the DCI transmission does not affect one or more discontinuous reception (DRX) timers, the one or more DRX timers including at least one of the following: a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX hybrid automatic repeat request (HARQ) downlink retransmission timer, a DRX HARQ uplink retransmission timer, or a combination thereof.
[0245] Aspect 25: The method according to any one of Aspects 23 or 24, further comprising: sending a dedicated feedback message to the base station, the dedicated feedback message including an acknowledgment or a negative acknowledgment associated with receiving the DCI transmission.
[0246] Aspect 26: The method of aspect 25, wherein the dedicated feedback message corresponds to at least one of the following: hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook type 1, HARQ-ACK codebook type 2, or HARQ-ACK codebook type 3.
[0247] Aspect 27: The method according to any one of aspects 20-26, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a MAC-CE.
[0248] Aspect 28: A method as described in Aspect 27, wherein the action time of the MAC-CE includes at least one of the following: the end of an acknowledgment (ACK) message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0249] Aspect 29: A method as described in Aspect 20, wherein the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and wherein the configured default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0250] Aspect 30: The method according to any one of aspects 20-29, wherein the SPS skip indicator indicates a start time associated with the SPS opportunity set to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0251] Aspect 31: The method of aspect 30, wherein the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0252] Aspect 32: The method of aspect 30 or 31, wherein the start time is indicated relative to a start time of a frame associated with the MAC-CE.
[0253] Aspect 33: A method as described in any of Aspects 20-32, wherein the SPS skip indicator includes a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of the MAC-CE.
[0254] Aspect 34: The method of aspect 33, wherein the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0255] Aspect 35: The method of aspect 34, wherein the specified number comprises a fixed number configured in a radio resource control message.
[0256] Aspect 36: The method of aspect 34, wherein the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0257] Aspect 37: The method of aspect 20, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of the DCI transmission.
[0258] Aspect 38: The method of aspect 37, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the DCI transmission.
[0259] Aspect 39: The method of aspect 38, wherein the DCI transmission is associated with a dedicated feedback message.
[0260] Aspect 40: The method of aspect 38, wherein the DCI transmission is not associated with a dedicated feedback message.
[0261] Aspect 41: A method as described in any of Aspects 38-40, wherein the specified number of symbols is based at least in part on at least one of: a subcarrier spacing (SCS) of a scheduling component carrier (CC) carrying a DCI transmission, an SCS of a CC carrying SPS communications, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, or a combination thereof.
[0262] Aspect 42: The method of any of aspects 38-41, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of an uplink feedback transmission associated with the DCI transmission.
[0263] Aspect 43: A method as described in Aspect 42, wherein the specified number of symbols is based at least in part on at least one of: a subcarrier spacing (SCS) of a scheduling component carrier (CC) carrying a DCI transmission, an SCS of a CC carrying SPS communications, an SCS of a CC carrying an uplink feedback message associated with the DCI transmission, or a combination thereof.
[0264] Aspect 44: The method of aspect 1, wherein the SPS skip indicator is indicated by a downlink sequence.
[0265] Aspect 45: The method of aspect 44, wherein the downlink sequence comprises at least one of: a demodulation reference signal, a channel state information reference signal, or a combination thereof.
[0266] Aspect 46: The method of aspect 44 or 45, wherein the downlink sequence is carried in a resource allocation associated with at least one SPS opportunity.
[0267] Aspect 47: The method of aspect 46, wherein the downlink sequence comprises a demodulation reference signal carried in one or more symbols in at least one SPS opportunity.
[0268] Aspect 48: The method of aspect 47, wherein the one or more symbols in the at least one SPS opportunity are last one or more symbols in the at least one SPS opportunity.
[0269] Aspect 49: The method of aspect 44 or 45, wherein the downlink sequence is carried outside of a resource allocation associated with at least one SPS opportunity.
[0270] Aspect 50: The method according to any one of aspects 44-49, further comprising: sending a dedicated feedback message to the base station, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving the downlink sequence.
[0271] Aspect 51: The method of aspect 50, wherein the dedicated feedback message corresponds to at least one of the following: hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook type 1, HARQ-ACK codebook type 2, or HARQ-ACK codebook type 3.
[0272] Aspect 52: The method of any one of aspects 44-51, wherein the set of SPS opportunities to be skipped indicated by the downlink sequence includes SPS opportunities associated with the downlink sequence.
[0273] Aspect 53: The method of any one of aspects 44-52, wherein the set of SPS opportunities to be skipped indicated by the downlink sequence comprises a plurality of SPS opportunities associated with the downlink sequence.
[0274] Aspect 54: A method as described in any of Aspects 44-53, wherein a downlink sequence indicates a first start time associated with a set of SPS opportunities to be skipped and a first duration of a time period associated with the set of SPS opportunities to be skipped, and wherein another downlink sequence indicates a second start time associated with the set of SPS opportunities to be skipped and a second duration of the time period associated with the set of SPS opportunities to be skipped.
[0275] Aspect 55: The method of any one of aspects 44-54, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a downlink sequence.
[0276] Aspect 56: The method of aspect 55, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the downlink sequence.
[0277] Aspect 57: The method of Aspect 56, wherein the download sequence is associated with a dedicated feedback message.
[0278] Aspect 58: The method of Aspect 56, wherein the download sequence is not associated with a dedicated feedback message.
[0279] Aspect 59: The method of aspect 55, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the uplink feedback transmission associated with the downlink sequence.
[0280] Aspect 60: A method of wireless communication performed by a base station, comprising: sending a semi-persistent scheduling (SPS) skip indicator to a user equipment (UE), the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; and sending SPS communication.
[0281] Aspect 61: The method of aspect 60, wherein the UE is to ignore at least one SPS opportunity by not sending a feedback message associated with the at least one SPS opportunity.
[0282] Aspect 62: The method of any of aspects 60 or 61, wherein the UE is to ignore at least one SPS opportunity by not performing SPS decoding associated with the at least one SPS opportunity.
[0283] Aspect 63: The method of any of aspects 60-62, wherein the SPS skip indicator indicates at least one additional set of SPS opportunities to be skipped, wherein the UE is to skip each SPS opportunity in the at least one additional set of SPS opportunities to be skipped.
[0284] Aspect 64: The method of any one of aspects 60-63, wherein the SPS skip indicator indicates: an initial SPS opportunity to occur in the set of SPS opportunities to be skipped; and the number of SPS opportunities in the set of SPS opportunities to be skipped.
[0285] Aspect 65: The method of any one of aspects 60-64, wherein the SPS skip indicator indicates: a start time associated with the SPS opportunity set to be skipped; and a duration of a time period associated with the SPS opportunity set to be skipped.
[0286] Aspect 66: The method according to any one of aspects 60-65, wherein the SPS skip indicator comprises a bitmap indicating a set of SPS opportunities to be skipped.
[0287] Aspect 67: The method according to any one of aspects 60-66, wherein the SPS skip indicator is carried in a medium access control (MAC) control element (CE).
[0288] Aspect 68: The method of aspect 67, wherein the MAC-CE is carried in the PDSCH transmission.
[0289] Aspect 69: The method of aspect 68, wherein the PDSCH transmission comprises an SPS PDSCH transmission.
[0290] Aspect 70: The method according to any one of aspects 67-69, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of the MAC-CE.
[0291] Aspect 71: A method as described in Aspect 70, wherein the action time of the MAC-CE includes at least one of the following: the end of an acknowledgment (ACK) message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0292] Aspect 72: A method as described in any of Aspects 67-69, wherein the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and wherein the default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0293] Aspect 73: The method according to any one of aspects 67-72, wherein the SPS skip indicator indicates a start time associated with the set of SPS opportunities to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0294] Aspect 74: The method of aspect 73, wherein the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0295] Aspect 75: The method of aspect 73 or 74, wherein the start time is indicated relative to a start time of a frame associated with the MAC-CE or an action time of the MAC-CE.
[0296] Aspect 76: A method as described in any of Aspects 67-75, wherein the SPS skip indicator includes a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of the MAC-CE.
[0297] Aspect 77: The method of aspect 76, wherein the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0298] Aspect 78: The method of aspect 77, wherein the specified number comprises a fixed number configured in a radio resource control message.
[0299] Aspect 79: The method of aspect 77, wherein the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0300] Aspect 80: The method of aspect 60, wherein the SPS skip indicator is carried in a downlink control information (DCI) transmission.
[0301] Aspect 81: The method of aspect 80 further includes sending a radio resource control message to the UE, the radio resource control message configuring one or more data fields in the DCI transmission to carry an SPS skip indicator.
[0302] Aspect 82: The method of any one of aspects 80 or 81, wherein the DCI transmission comprises a DCI format that schedules at least one of an uplink signal or a downlink signal.
[0303] Aspect 83: The method of any one of aspects 80-82, wherein the DCI transmission comprises a dedicated DCI format.
[0304] Aspect 84: A method as described in Aspect 83, wherein the DCI transmission does not affect one or more discontinuous reception (DRX) timers, and the one or more DRX timers include at least one of the following: a DRX inactivity timer, a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX hybrid automatic repeat request (HARQ) downlink retransmission timer, a DRX HARQ uplink retransmission timer, or a combination thereof.
[0305] Aspect 85: The method of any one of aspects 83 or 84 further comprises receiving a dedicated feedback message from the UE, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving the DCI transmission.
[0306] Aspect 86: The method of aspect 85, wherein the dedicated feedback message corresponds to at least one of the following: hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook type 1, HARQ-ACK codebook type 2, or HARQ-ACK codebook type 3.
[0307] Aspect 87: The method of any one of aspects 80-86, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of the MAC-CE.
[0308] Aspect 88: A method as described in Aspect 87, wherein the action time of the MAC-CE includes at least one of the following: the end of an acknowledgment (ACK) message corresponding to the MAC-CE, or the end of a specified time period starting after the end of the ACK message corresponding to the MAC-CE.
[0309] Aspect 89: A method as described in any of Aspects 80-86, wherein the SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and wherein the configured default initial SPS opportunity to occur in the SPS opportunities to be skipped includes the next opportunity to occur after the action time of the MAC-CE.
[0310] Aspect 90: The method of any one of aspects 80-89, wherein the SPS skip indicator indicates a start time associated with the set of SPS opportunities to be skipped, wherein the start time is indicated relative to an action time of the MAC-CE.
[0311] Aspect 91: The method of aspect 90, wherein the start time comprises a time occurring after a specified time period starting at an action time of the MAC-CE.
[0312] Aspect 92: The method of aspect 90 or 91, wherein the start time is indicated relative to a start time of a frame associated with the MAC-CE.
[0313] Aspect 93: A method as described in any of Aspects 80-92, wherein the SPS skip indicator includes a bitmap indicating a set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period containing an action time of the MAC-CE.
[0314] Aspect 94: The method of aspect 93, wherein the bitmap corresponds to a specified number of SPS opportunities occurring after an action time of the MAC-CE.
[0315] Aspect 95: The method of aspect 94, wherein the specified number comprises a fixed number configured in a radio resource control message.
[0316] Aspect 96: The method of aspect 94, wherein the specified number comprises a dynamically indicated number indicated in a MAC-CE.
[0317] Aspect 97: The method of aspect 80, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of the DCI transmission.
[0318] Aspect 98: The method of aspect 97, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the DCI transmission.
[0319] Aspect 99: The method of Aspect 98, wherein the DCI transmission is associated with a dedicated feedback message.
[0320] Aspect 100: The method of aspect 98, wherein the DCI transmission is not associated with a dedicated feedback message.
[0321] Aspect 101: A method as described in any of Aspects 98-100, wherein the specified number of symbols is based at least in part on at least one of: a subcarrier spacing (SCS) of a scheduling component carrier (CC) carrying a DCI transmission, an SCS of a CC carrying SPS communications, an SCS of a CC carrying an uplink feedback transmission associated with the DCI transmission, or a combination thereof.
[0322] Aspect 102: The method of any of aspects 97-101, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of an uplink feedback transmission associated with the DCI transmission.
[0323] Aspect 103: A method as described in Aspect 102, wherein the specified number of symbols is based at least in part on at least one of: a subcarrier spacing (SCS) of a scheduling component carrier (CC) carrying a DCI transmission, an SCS of a CC carrying SPS communications, an SCS of a CC carrying an uplink feedback message associated with the DCI transmission, or a combination thereof.
[0324] Aspect 104: The method of aspect 60, wherein the SPS skip indicator is indicated by a downlink sequence.
[0325] Aspect 105: The method of aspect 104, wherein the downlink sequence comprises at least one of: a demodulation reference signal, a channel state information reference signal, or a combination thereof.
[0326] Aspect 106: The method of aspect 104 or 105, wherein the downlink sequence is carried in a resource allocation associated with at least one SPS opportunity.
[0327] Aspect 107: The method of aspect 106, wherein the downlink sequence comprises a demodulation reference signal carried in one or more symbols in at least one SPS opportunity.
[0328] Aspect 108: The method of aspect 107, wherein the one or more symbols in the at least one SPS opportunity are last one or more symbols in the at least one SPS opportunity.
[0329] Aspect 109: The method of aspect 104, wherein the downlink sequence is carried outside of a resource allocation associated with at least one SPS opportunity.
[0330] Aspect 110: The method of any of aspects 104-109, further comprising: receiving a dedicated feedback message from the UE, the dedicated feedback message comprising an acknowledgement or a negative acknowledgement associated with receiving the downlink sequence.
[0331] Aspect 111: The method of aspect 110, wherein the dedicated feedback message corresponds to at least one of the following: hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook type 1, HARQ-ACK codebook type 2, or HARQ-ACK codebook type 3.
[0332] Aspect 112: The method of any of aspects 104-111, wherein the set of SPS opportunities to be skipped indicated by the downlink sequence comprises SPS opportunities associated with the downlink sequence.
[0333] Aspect 113: The method of any of aspects 104-112, wherein the set of SPS opportunities to be skipped indicated by the downlink sequence comprises a plurality of SPS opportunities associated with the downlink sequence.
[0334] Aspect 114: A method as described in any of Aspects 104-113, wherein a downlink sequence indicates a first start time associated with a set of SPS opportunities to be skipped and a first duration of a time period associated with the set of SPS opportunities to be skipped, and wherein another downlink sequence indicates a second start time associated with the set of SPS opportunities to be skipped and a second duration of the time period associated with the set of SPS opportunities to be skipped.
[0335] Aspect 115: The method of any of aspects 104-114, wherein the SPS skip indicator indicates an initial SPS opportunity to occur in the set of SPS opportunities to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a downlink sequence.
[0336] Aspect 116: The method of aspect 115, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the downlink sequence.
[0337] Aspect 117: The method of Aspect 116, wherein the download sequence is associated with a dedicated feedback message.
[0338] Aspect 118: The method of aspect 116, wherein the download sequence is not associated with a dedicated feedback message.
[0339] Aspect 119: The method of aspect 115, wherein the initial SPS opportunity to occur comprises an SPS opportunity occurring a specified number of symbols after the end of the uplink feedback transmission associated with the downlink sequence.
[0340] Aspect 120: 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 of one or more of Aspects 1-59.
[0341] Aspect 121: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more of aspects 1-59.
[0342] Aspect 122: An apparatus for wireless communication, comprising at least one component for performing the method of one or more of aspects 1-59.
[0343] Aspect 123: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-59.
[0344] Aspect 124: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of aspects 1-59.
[0345] Aspect 125: 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 of one or more aspects of aspects 60-119.
[0346] Aspect 126: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more of aspects 60-119.
[0347] Aspect 127: An apparatus for wireless communication, comprising at least one component for performing the method of one or more of aspects 60-119.
[0348] Aspect 128: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 60-119.
[0349] Aspect 129: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 60-119.
[0350] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the aspects.
[0351] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. "Software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, etc., regardless of whether they are referred to as software, firmware, middleware, microcode, hardware description language or other. As used herein, the processor is implemented with a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented with different forms of hardware and / or a combination of hardware and software. The actual specialized control hardware or software code for implementing these systems and / or methods is not a restriction on various aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without citing specific software codes--it is to 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.
[0352] As used herein, satisfying a threshold may refer to a value being 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.
[0353] Even if the specific combination of feature is recorded 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 to combine in a manner not specifically recorded in the claims and / or disclosed in the specification. Although each dependent claim listed below can directly depend on only one claim, the disclosure of various aspects includes that each dependent claim is combined with each other claim in the claim set. As used herein, the phrase of "at least one of" referring to a list of items refers to any combination of those items, including single members. For example, "at least one of a, b or c" is intended to encompass a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).
[0354] None of the elements used herein, actions or instructions should be interpreted as key or essential, unless clearly described as such. In addition, as used herein, the articles "one" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more projects related to the article "the", 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 projects (for example, related projects, unrelated projects, the combination of related projects and unrelated projects, etc.), and can be used interchangeably with "one or more". In the case of only one project, phrase "only one" or similar language is used. In addition, as used herein, the terms "have (has)", "have (have)", "have (having)" etc. are intended to be open terms. Further, unless explicitly stated otherwise, phrase "based on" is intended to mean "at least partially based on". Furthermore, as used herein, the term "or" when used in tandem is intended to be inclusive and used interchangeably with "and / or" unless expressly stated otherwise (e.g., if used in combination with "either" or "only one of").
Claims
1. 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 configured to: receiving a semi-persistent scheduling (SPS) skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; ignoring the at least one SPS opportunity in the set of SPS opportunities by not performing SPS decoding associated with the at least one SPS opportunity and by not sending a feedback message associated with the at least one SPS opportunity; and A feedback message is sent associated with at least one other SPS opportunity of the SPS communication.
2. The UE according to claim 1, wherein: The SPS skip indicator is carried in downlink control information DCI transmission.
3. The UE according to claim 2, wherein: The memory and the one or more processors are further configured to receive a radio resource control message from the base station, the radio resource control message configuring one or more data fields in the DCI transmission to carry the SPS skip indicator.
4. The UE according to claim 2, wherein: The DCI transmission includes a DCI format that schedules at least one of an uplink signal or a downlink signal.
5. The UE according to claim 2, wherein: The DCI transmission includes a dedicated DCI format.
6. The UE according to claim 5, wherein: The DCI transmission does not affect one or more discontinuous reception (DRX) timers, where the one or more DRX timers include at least one of the following: DRX Inactivity Timer, DRX downlink retransmission timer, DRX uplink retransmission timer, DRX Hybrid Automatic Repeat Request HARQ downlink retransmission timer, DRX HARQ uplink retransmission timer, or Its combination.
7. The UE according to claim 2, wherein: The one or more processors are further configured to send a dedicated feedback message to the base station, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving the DCI transmission.
8. The UE according to claim 7, wherein: The dedicated feedback message corresponds to at least one of the following: hybrid automatic repeat request acknowledgement HARQ-ACK codebook type 1, HARQ-ACK codebook type 2 or HARQ-ACK codebook type 3.
9. The UE according to claim 1, wherein: The SPS skip indicator indicates an initial SPS opportunity to occur in the SPS opportunity set to be skipped, wherein the initial SPS opportunity to occur is indicated relative to an action time of a medium access control MAC-control element MAC-CE.
10. The UE according to claim 9, wherein: The action time of the MAC-CE includes at least one of the following: an end of an acknowledgment ACK message corresponding to the MAC-CE, or an end of a specified time period starting after an end of the ACK message corresponding to the MAC-CE.
11. The UE according to claim 1, wherein: The SPS skip indicator does not indicate an initial SPS opportunity to occur in the SPS opportunities to be skipped, and wherein the configured default initial SPS opportunity to occur in the SPS opportunities to be skipped includes a next opportunity to occur after an action time of a medium access control MAC-control element MAC-CE.
12. The UE according to claim 1, wherein: The SPS skip indicator indicates a start time associated with the SPS opportunity set to be skipped, wherein the start time is indicated relative to an action time of a Medium Access Control MAC-Control Element MAC-CE.
13. The UE according to claim 12, wherein: The start time includes a time occurring after a specified time period starting at an action time of the MAC-CE.
14. The UE according to claim 12, wherein: The start time is indicated relative to a start time of a frame associated with the MAC-CE.
15. The UE according to claim 1, wherein: The SPS skip indicator includes a bitmap indicating the set of SPS opportunities to be skipped, wherein the bitmap corresponds to a plurality of SPS opportunities associated with a next period occurring after a period including an action time of a medium access control MAC-control element MAC-CE.
16. The UE according to claim 15, wherein: The bitmap corresponds to a specified number of SPS opportunities occurring after the action time of the MAC-CE.
17. The UE according to claim 16, wherein: The designated number includes a fixed number configured in a radio resource control message.
18. The UE according to claim 16, wherein: The specified number includes a dynamically indicated number indicated in the MAC-CE.
19. The UE according to claim 1, wherein: The SPS skip indicator is indicated by a downlink sequence.
20. The UE according to claim 19, wherein: The downlink sequence includes at least one of: a demodulation reference signal, a channel state information reference signal, or a combination thereof.
21. The UE according to claim 19, wherein: The downlink sequence is carried in a resource allocation associated with the at least one SPS opportunity.
22. The UE according to claim 19, wherein: The downlink sequence includes a demodulation reference signal carried in one or more symbols in the at least one SPS opportunity.
23. The UE according to claim 22, wherein: The one or more symbols in the at least one SPS opportunity are last one or more symbols in the at least one SPS opportunity.
24. The UE according to claim 19, wherein: The downlink sequence is carried outside of a resource allocation associated with the at least one SPS opportunity.
25. The UE according to claim 19, wherein: The memory and the one or more processors are further configured to send a dedicated feedback message to the base station, the dedicated feedback message comprising an acknowledgment or a negative acknowledgment associated with receiving the downlink sequence.
26. The UE according to claim 25, wherein: The dedicated feedback message corresponds to at least one of the following: hybrid automatic repeat request acknowledgement HARQ-ACK codebook type 1, HARQ-ACK codebook type 2 or HARQ-ACK codebook type 3.
27. The UE according to claim 19, wherein: The set of SPS opportunities to be skipped indicated by the downlink sequence includes at least one SPS opportunity associated with the downlink sequence.
28. The UE according to claim 19, wherein: The downlink sequence indicates a first start time associated with the SPS opportunity set to be skipped and a first duration of a time period associated with the SPS opportunity set to be skipped, and wherein another downlink sequence indicates a second start time associated with the SPS opportunity set to be skipped and a second duration of the time period associated with the SPS opportunity set to be skipped.
29. A base station 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 configured to: Sending a semi-persistent scheduling SPS skip indicator to a user equipment (UE), the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; sending the SPS communication; and A feedback message associated with at least one other SPS opportunity of the SPS communication is received.
30. A method of wireless communication performed by a user equipment (UE), comprising: receiving a semi-persistent scheduling (SPS) skip indicator from a base station, the SPS skip indicator indicating a set of SPS opportunities to be skipped for SPS communication, wherein the set of SPS opportunities to be skipped includes at least one SPS opportunity that will not include a physical downlink shared channel (PDSCH) transmission; ignoring the at least one SPS opportunity in the set of SPS opportunities by not performing SPS decoding associated with the at least one SPS opportunity and by not sending a feedback message associated with the at least one SPS opportunity; and A feedback message is sent associated with at least one other SPS opportunity of the SPS communication.
31. An apparatus for wireless communication comprising means for performing the method of claim 30.
32. A computer readable medium having stored thereon instructions that, when executed by a processor, cause the processor to perform the method of claim 30.
33. A computer program product comprising computer instructions which, when executed by a processor, cause the processor to perform the method according to claim 30.
Citation Information
Patent Citations
Techniques and apparatuses for temporary modification of periodic grants
US20180279357A1