Physical uplink control channel transmission for low latency communication deployments
By determining the PUCCH transmission characteristics and supporting multiple symbol codebook reports in the low latency communication system, the problem of low PUCCH transmission efficiency is solved, and the communication effect with low latency is achieved.
Patent Information
- Application Number
- CN202180034716.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-05-24
- Filing Date
- 2021-05-25
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2041-05-25
AI Technical Summary
In the deployment of low latency communication, the physical uplink control channel (PUCCH) transmission efficiency is low, resulting in an increase in latency and cannot meet the demand for low latency communication.
By determining the PUCCH transmission characteristics, including the number or set format of PUCCH transmissions in the sub-slot, and supporting at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook, the PUCCH characteristics are identified for various types of symbol codebook reports.
It improves the PUCCH transmission efficiency, reduces the waiting time reported by HARQ ACK, meets the needs of low latency communication, and improves the performance of the communication system.
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Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 030,263, filed on May 26, 2020, entitled “PHYSICAL UPLINK CONTROLCHANNEL TRANSMISSION FOR LOW LATENCY COMMUNICATION DEPLOYMENTS,” and U.S. Non-Provisional Patent Application No. 17 / 303,217, filed on May 24, 2021, entitled “PHYSICAL UPLINK CONTROL CHANNEL TRANSMISSION FOR LOWLATENCY COMMUNICATION DEPLOYMENTS,” which are hereby expressly incorporated herein by reference.
[0003] Public domain
[0004] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for physical uplink control channel transmissions for low latency communication deployments.
[0005] background
[0006] Wireless communication systems are widely deployed to provide various 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 set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0007] A wireless network may include several base stations (BSs) that can support communications for several user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A "downlink" (or "forward link") refers to a communication link from a BS to a UE, while an "uplink" (or "reverse link") refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, a gNB, an Access Point (AP), a Radio Head, a Transmit Receiving Point (TRP), a New Radio (NR) BS, a 5G Node B, and the like.
[0008] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global level. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR and other radio access technologies are still useful.
[0009] Overview
[0010] In some aspects, a wireless communication method performed by a wireless communication device includes: determining a physical uplink control channel (PUCCH) transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-time slot or the format of a set of PUCCH transmissions in the sub-time slot, and wherein the wireless communication device supports at least one sub-time slot hybrid automatic repeat request (HARQ) acknowledgment (ACK) codebook; and reporting information identifying the PUCCH characteristic for multiple types of codebooks.
[0011] In some aspects, a wireless communication device for wireless communication includes a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: determine a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a subslot or the format of a set of PUCCH transmissions in the subslot, and wherein the wireless communication device supports at least one subslot HARQ ACK codebook; and report information identifying the PUCCH characteristic for multiple types of codebooks.
[0012] In some aspects, a non-transitory computer-readable medium storing one or more instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a wireless communication device, cause the one or more processors to: determine a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a subslot or the format of a set of PUCCH transmissions in the subslot, and wherein the wireless communication device supports at least one subslot HARQ ACK codebook; and report information identifying the PUCCH characteristic for multiple types of symbol codebooks.
[0013] In some aspects, an apparatus for wireless communication includes: means for a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a subslot or the format of a set of PUCCH transmissions in the subslot, and wherein the wireless communication device supports at least one subslot HARQ ACK codebook; and means for reporting information identifying the PUCCH characteristic for multiple types of codeword codebooks.
[0014] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as substantially described herein with reference to and as illustrated in the accompanying figures and specification.
[0015] The foregoing has broadly outlined the features and technical advantages of examples according to the present disclosure in an effort to make the following detailed description better understood. Additional features and advantages will be described hereinafter. The disclosed concepts and specific examples can be easily used as a basis for modifying or designing other structures for implementing the same purpose as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description and is not intended to define limitations on the claims.
[0016] Although various aspects are described in the present disclosure by explaining some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment, or devices that enable artificial intelligence). Various aspects can be implemented in chip-level components, module components, non-module components, non-chip-level components, device-level components, or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include several components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, (all) processors, interleavers, adders or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to understand the above-stated features of the present disclosure in detail, the above briefly summarized content may be described in more detail with reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and should not be considered to limit its scope, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0020] Figure 2 is a diagram illustrating an example in which a base station and a user equipment (UE) are in communication in a wireless network according to the present disclosure.
[0021] Figure 3 is a diagram illustrating an example of a hybrid automatic repeat request (HARQ) report according to the present disclosure.
[0022] Figure 4 is a diagram illustrating an example of HARQ reporting according to the present disclosure.
[0023] Figure 5 is a diagram illustrating an example of a HARQ codebook according to the present disclosure.
[0024] Figure 6is a diagram illustrating an example associated with uplink control channel (PUCCH) transmission for low latency communication deployments in accordance with the present disclosure.
[0025] Figure 7 is a diagram illustrating an example process associated with PUCCH transmission for low latency communication deployments in accordance with the present disclosure.
[0026] Figure 8 is a block diagram of an example apparatus for wireless communications according to the present disclosure.
[0027] Detailed Description
[0028] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and it will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings of this article, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is independently implemented 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 a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods practiced using supplements or other other structures, functionality, or structures and functionality as the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.
[0029] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can 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.
[0030] It should be noted that while 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 RATs after 5G (e.g., 6G).
[0031] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc. or may include elements thereof. The wireless network 100 may include several base stations 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, a B node, a gNB, a 5G B node (NB), an access point, a transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.
[0032] 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 by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. The BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "B node", "5G NB", and "cell" may be used interchangeably herein.
[0033] In some aspects, the cell may not necessarily be stationary, and the geographic area of the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.
[0034] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , 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, or the like.
[0035] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a 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).
[0036] A network controller 130 may be coupled to a set of BSs and may provide coordination and control of these BSs. The network controller 130 may communicate with each BS via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.
[0037] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. UEs may also be referred to as access terminals, terminals, mobile stations, subscriber units, stations, etc. A UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.
[0038] Some UEs may be considered as machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or to a network (e.g., a wide area network (such as the Internet) or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as client equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0039] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific RAT and may operate on one or more frequencies. RAT may also be referred to as radio technology, air interface, etc. Frequency may also be referred to as carrier, frequency channel, etc. Each frequency may 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 may be deployed.
[0040] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.
[0041] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using an operating band having a first frequency range (FR1) and / or may communicate using an operating band having a second frequency range (FR2), the first frequency range (FR1) may span 410 MHz to 7.125 GHz, and the second frequency range (FR2) may span 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 it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise specifically stated, it should be understood that the terms "sub-6 GHz" and the like, if used herein, may 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 terms "millimeter wave" and the like, if used herein, may 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.
[0042] In some aspects, a wireless communication device, such as a UE, may include a communication manager 140. As described in greater detail elsewhere herein, the communication manager 140 may determine a physical uplink control channel (PUCCH) transmission characteristic, wherein the PUCCH transmission characteristic is a number of PUCCH transmissions in a subslot or a format of a set of PUCCH transmissions in the subslot, and wherein the wireless communication device supports at least one subslot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and information identifying the PUCCH characteristic for multiple types of symbol codebook reports. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0043] As indicated above, Figure 1 are provided as examples. Other examples may differ from those described herein. Figure 1 Examples described.
[0044] Figure 2is a diagram illustrating an example 200 of a base station 110 and a UE 120 in communication in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.
[0045] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or 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, where 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) 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.
[0046] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols where 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 CQI parameter, etc. In some aspects, one or more components of the UE 120 may be included in the housing 284 .
[0047] 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.
[0048] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included within, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmission and / or reception components (such as Figure 2 One or more antenna elements of one or more components).
[0049] 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. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, where applicable, 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 antenna(s) 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 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 6-7 As described.
[0050] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 where applicable, and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna(s) 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 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 6-7 As described.
[0051] 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 may perform one or more techniques associated with PUCCH transmission for low latency deployment, as described in more detail elsewhere herein. In some aspects, the wireless communication device described herein is a UE 120 or includes Figure 2 1. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 7 The operations of process 700 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 communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example Figure 7 In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other aspects.
[0052] In some aspects, the wireless communication device includes: means for determining a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a subslot or the format of a set of PUCCH transmissions in the subslot, and wherein the wireless communication device supports at least one subslot HARQ ACK codebook; and / or means for reporting information identifying the PUCCH characteristic for multiple types of symbol codebooks. In some aspects, the means for the wireless communication device to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the modulator 254, the controller / processor 280, or the memory 282.
[0053] although Figure 2The blocks in the 200 and 210 are illustrated as distinct components, but the functions described above with respect to these blocks may be implemented using a single hardware, software, or combined component or a combination of various components. For example, the functions 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.
[0054] As indicated above, Figure 2 are provided as examples. Other examples may differ from those described herein. Figure 2 Examples described.
[0055] Figure 3 is a diagram illustrating an example 300 of HARQ reporting in accordance with the present disclosure.
[0056] like Figure 3 As shown in , each resource of a time slot may be assigned to multiple physical downlink shared channel (PDSCH) transmissions. For example, a base station may transmit PDSCH 1 in a first resource of a time slot, transmit PDSCH 2 in a second resource of a time slot, or transmit PDSCH 3 in a third resource in a time slot, as well as transmit other PDSCHs. A UE may be scheduled using PUCCH resources for reporting HARQ feedback associated with multiple PDSCH transmissions. For example, the UE may be configured with PUCCH resources that are N1 after the end of a time slot. In this case, the UE may report HARQ feedback with a specific delay based at least in part on where in the time slot a PDSCH to which HARQ feedback is applied is received. For example, a UE may report HARQ feedback for PDSCH1 at a time of N1+12 symbols after PDSCH1, and may report HARQ feedback for PDSCH5 at a time of N1+2 symbols after PDSCH5.
[0057] PUCCH resources may be configured for many-to-one mapping. In other words, each of the PDSCHs may be mapped to a single PUCCH. This many-to-one mapping of PDSCH to PUCCH resources may result in excessive waiting time for the round trip time (RTT) associated with the base station transmitting the PDSCH and the base station receiving the PUCCH including HARQ feedback for the PDSCH. For example, in a worst-case scenario, the base station experiences an RTT of N1+12 symbols to receive HARQ feedback for PDSCH1. In contrast, the base station experiences an RTT of N1 symbols to receive HARQ feedback for PDSCH7. In contrast, in other communication systems configured with one-to-one mapping of PDSCH to PUCCH, the base station may experience the same RTT in the worst-case scenario, the best-case scenario, and the average scenario (e.g., each PDSCH has a corresponding PUCCH resource after N1 symbols).
[0058] As indicated above, Figure 3 are provided as examples. Other examples may differ from those described herein. Figure 3 Examples described.
[0059] Figure 4 is a diagram illustrating an example 400 of HARQ reporting in accordance with the present disclosure.
[0060] like Figure 4 As shown in , the UE is configured with PDSCH resources on a downlink (DL) component carrier (CC) having a first subcarrier spacing (SCS) (e.g., 15 kilohertz (kHz)). Additionally, the UE is configured with PUCCH resources reserved on an uplink (UL) CC having a second SCS (e.g., 30 kHz). If a parameter (subslotLength-ForPUCCH) identifying the subslot length for the PUCCH resources is provided to the UE, two codebook configurations may be possible. The first codebook configuration may have 2 subslots, each subslot including 7 symbols. The second codebook may have 7 subslots, each subslot including 2 symbols.
[0061] like Figure 4 As further shown in , the PUCCH resource may appear K1 subslots after the end of the PDSCH resource. The size of parameter K1 may be based at least in part on the subslot length configured for a codebook (e.g., HARQ ACK codebook), and K1 may start in a subslot after the subslot including the end symbol of the PDSCH resource.
[0062] As indicated above, Figure 4 are provided as examples. Other examples may differ from those described herein. Figure 4 Examples described.
[0063] Figure 5 is a diagram illustrating an example 500 of a HARQ codebook according to the present disclosure.
[0064] like Figure 5 As shown in , a physical downlink control channel (PDCCH) resource may schedule a PDSCH resource, which may be acknowledged in a reserved PUCCH resource. The UE may be configured with, for example, up to two codebooks (e.g., HARQ ACK codebooks) for PUCCH resources. For example, the UE may be configured with two slot-based codebooks, two sub-slot-based codebooks, or one slot-based codebook and one sub-slot-based codebook.
[0065] like Figure 5As further shown in , the priority indicator field in the downlink control information (DCI) may indicate which codebook the UE will use to identify the resources for transmitting HARQ feedback. For example, the UE may use a first value ('0') to identify the priority information, which may indicate that a time slot-based codebook (CB#0) and a first resource are used to transmit HARQ feedback. Additionally or alternatively, the UE may use a second value ('1') to identify the priority information, which may indicate that a sub-time slot-based codebook (CB#1) and a second resource are used to transmit HARQ feedback. In some cases, when the priority indicator is not configured (and priority information is not present), the UE may adopt a default codebook (e.g., the first codebook in a pair of codebooks).
[0066] As indicated above, Figure 5 are provided as examples. Other examples may differ from those described herein. Figure 5 Examples described.
[0067] As described above, for some UEs, only a single HARQ ACK report is allowed in each time slot. Although multiple PDSCHs can be scheduled in a time slot, the lack of a one-to-one mapping between PDSCH and PUCCH may limit the HARQ ACK report to a single instance in a time slot. In some other communication systems, multiple codebook configurations are enabled, such as a first codebook configuration with 2 subslots, each subslot including 7 symbols (2x7 symbol codebook); or a second codebook configuration with 7 subslots, each subslot including 2 symbols (7x2 symbol codebook); and so on.
[0068] A wireless communication device (such as a UE) may be configured with up to two codebooks (e.g., HARQ ACK codebooks), such as two slot-based HARQ ACK codebooks, two sub-slot-based HARQ ACK codebooks, or a slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook. The defined wireless communication device capabilities may support a single codebook or two codebooks for a single PUCCH conveying HARQ ACK in a sub-slot.
[0069] However, in some cases, the wireless communication device may be configured to transmit other PUCCHs in addition to the PUCCH that conveys HARQ ACK. For example, the wireless communication device may be configured to transmit a scheduling request (SR) or channel state information (CSI). In addition, the wireless communication device may be configured to multiplex multiple PUCCHs or multiplex a PUCCH with a physical uplink shared channel (PUSCH), etc.
[0070] Some aspects described herein define the behavior of wireless communications in sub-slot deployments, where the UE is to transmit multiple PUCCHs or multiplex a PUCCH with another uplink communication (e.g., PUSCH), etc. For example, a feature group (FG) is defined to support a 2x7 symbol codebook and a 7x2 symbol codebook with a single PUCCH transmission per sub-slot and a format set for multiple length configurations. Additionally or alternatively, the wireless communication device may report PUCCH transmission characteristics (e.g., the number of PUCCH transmissions per sub-slot and / or the format set of PUCCH in the sub-slot) for multiple codebooks (e.g., 2x7 symbol codebooks and / or 7x2 symbol codebooks) based at least in part on the supported codebook set. In this case, the wireless communication device may report PUCCH transmission characteristics jointly or separately based at least in part on the type of HARQ ACK codebook supported and / or in some cases at least in part on whether the sub-slot-based HARQ ACK codebook is associated with a 2x7 symbol configuration or a 7x2 symbol configuration. In this manner, wireless communication devices achieve improved communications, reduced latency for HARQ ACK transmissions, flexibility in communications deployment, and the like.
[0071] Figure 6 6 is a diagram illustrating an example 600 associated with PUCCH transmission for low latency communication deployments according to the present disclosure. Figure 6 As shown in , example 600 includes communications between BS 110 and UE 120. In some aspects, BS 110 and UE 120 may be included in a wireless network, such as wireless network 100. BS 110 and UE 120 may communicate via a wireless access link, which may include an uplink and a downlink.
[0072] like Figure 6 1 and further shown by reference numeral 610, UE 120 may transmit capability signaling, such as a UE capability indicator or FG having a specific format defined in the specification or some other fixed definition (e.g., a fixed format or a format fixed with respect to some other parameter). For example, UE 120 may transmit an FG indicating support for a specific type of symbol codebook, such as a 2x7 symbol HARQ ACK codebook or a 7x2 symbol HARQ ACK codebook with one PUCCH transmission per subslot. In this case, the FG may identify a specific communication format configured for a specific length.
[0073] In some aspects, the UE 120 may report separate capabilities. For example, when the UE 120 supports a single subslot-based HARQ ACK codebook, the UE 120 may transmit separate reports that identify the number of PUCCH transmissions per subslot and / or the format set of PUCCH per subslot for the 2x7 symbol codebook and for the 7x2 symbol codebook. Alternatively, the UE 120 may report the UE capabilities jointly. For example, when the UE 120 supports a single subslot-based HARQ ACK codebook, the UE 120 may jointly report the number of PUCCH transmissions per subslot and / or the format of PUCCH per subslot for multiple subslot-based HARQ ACK codebooks (e.g., with different length configurations).
[0074] In some aspects, when the UE 120 supports one slot-based codebook and one subslot-based codebook, the UE 120 may transmit separate reports based at least in part on the type of the subslot codebook. For example, the UE 120 may separately transmit a capability indicator identifying the number of PUCCHs or PUCCH formats per slot based at least in part on whether the subslot codebook is a 2x7 symbol codebook or a 7x2 symbol codebook. Alternatively, in some aspects, the UE 120 may transmit joint capability information regardless of the type of the subslot codebook.
[0075] In some aspects, when UE 120 supports two sub-slot codebooks, UE 120 may transmit separate reports based at least in part on the types of the two sub-slot codebooks. For example, UE 120 may transmit separate reports based at least in part on whether the two sub-slot codebooks are two 2x7 symbol codebooks, two 7x2 symbol codebooks, or one 2x7 symbol codebook and one 7x2 symbol codebook. Alternatively, in some aspects, UE 120 may transmit joint capability information regardless of the types of the two sub-slot codebooks.
[0076] In some aspects, the UE 120 may transmit a separate capability report based at least in part on the number of configured codebooks. For example, the UE 120 may report the number and PUCCH format of the PUCCHs in separate capability messages for 2x7 symbol and 7x2 symbol HARQ ACK codebooks based at least in part on whether a single codebook is configured or two codebooks are configured. In this case, the UE 120 may transmit a single report for each codebook. Alternatively, in some aspects, the UE 120 may transmit a joint capability indication regardless of the number of configured codebooks.
[0077] In some aspects, the UE 120 may transmit a capability indication (e.g., FG) identifying the number of SRs or HARQ ACKs that may be multiplexed per subslot. For example, the UE 120 may transmit a first capability indication specific to a first codebook configuration (e.g., a 2x7 symbol codebook) and a second capability indication specific to a second codebook configuration (e.g., a 7x2 symbol codebook). Additionally or alternatively, the UE 120 may transmit a single capability indication applicable to multiple (e.g., all) subslot-based HARQ ACK codebooks. In some aspects, the number of iterations (the number of times the SR, HARQ ACK, or CSI may be multiplexed) for multiplexing the SR, HARQ ACK, or CSI may be fixed on a per-slot basis and / or defined in the specification as a fixed number or fixed relationship to some other parameter.
[0078] like Figure 6 , and as further shown by reference numeral 620, UE 120 may receive one or more downlink transmissions. For example, UE 120 may receive a grant of resources for receiving PDSCH. Additionally or alternatively, UE 120 may receive PDSCH on one or more resources. In some aspects, UE 120 may receive one or more downlink transmissions associated with a capability indication. For example, when UE 120 transmits an FG indicating a specific UE capability, UE 120 may receive one or more downlink transmissions associated with a specific UE capability. In this case, the one or more downlink transmissions may be associated with, for example, the number of PUCCHs in a sub-time slot or the format of a PUCCH set in a sub-time slot. In some aspects, BS 110 may configure the one or more downlink transmissions based at least in part on the UE capability indication. For example, UE 120 may receive a PDSCH for confirmation based on the PUCCH configuration.
[0079] like Figure 6 1 and further shown by reference numeral 630, UE 120 may transmit one or more PUCCH communications. For example, UE 120 may transmit one or more multiplexed PUCCH communications. In this case, the number of PUCCHs conveying CSI and the number of instances of SR, HARQ ACK messages, or CSI that may be multiplexed per time slot are fixed at specific values. In some aspects, UE 120 may transmit one or more PUCCH communications based on a UE capability indication. For example, UE 120 may multiplex multiple PUCCHs, HARQ ACKs, or SRs, etc. into a single signal and transmit the single signal to BS 110 on the uplink.
[0080] As indicated above, Figure 6 are provided as examples. Other examples may differ from those described herein. Figure 6Examples described.
[0081] Figure 7 is a diagram illustrating an example process 700 performed, for example, by a wireless communication device in accordance with the present disclosure. Example process 700 is an example of a wireless communication device (eg, UE 120) performing operations associated with PUCCH transmissions for low latency communication deployments.
[0082] like Figure 7 As shown in , in some aspects, process 700 may include determining a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a subslot or the format of a set of PUCCH transmissions in the subslot, and wherein the wireless communication device supports at least one subslot HARQ ACK codebook (block 710). For example, a wireless communication device (e.g., using Figure 8 In some aspects, the communication manager 140 and / or the determining component 808 depicted in the embodiment of the present invention may determine a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-time slot or the format of a set of PUCCH transmissions in the sub-time slot, and wherein the wireless communication device supports at least one sub-time slot HARQ ACK codebook, as described above. In some aspects, the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-time slot or the format of a set of PUCCH transmissions in the sub-time slot. In some aspects, the wireless communication device supports at least one sub-time slot HARQ ACK codebook.
[0083] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include reporting information identifying the PUCCH characteristic for multiple types of codebooks (block 720). Figure 8 The communication manager 140 and / or reporting component 810 depicted in FIG. 8 may report information identifying the PUCCH characteristics for multiple types of codewords, as described above.
[0084] Process 700 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.
[0085] In a first aspect, the number of PUCCH transmissions conveying channel state information and the number of iterations for multiplexing scheduling requests, HARQ ACKs or channel state information have fixed definitions.
[0086] In a second aspect, either alone or in combination with the first aspect, a set of feature groups associated with the multiple types of symbol codebooks has a fixed definition, and wherein at least one feature group in the set of feature groups supports a 2x7 symbol codebook or a 7x2 symbol codebook with one PUCCH per subslot and one or more length configurations.
[0087] In a third aspect, alone or in combination with one or more of the first and second aspects, the wireless communication device supports a single subslot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristics separately for the multiple types of symbol codebooks.
[0088] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the wireless communication device supports a single subslot-based HARQ ACK codebook and is configured to jointly report the PUCCH transmission characteristics for the multiple types of codebooks without considering the length configuration.
[0089] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the wireless communication device supports a time slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook, and is configured to report the PUCCH transmission characteristics separately for the multiple types of codebooks based at least in part on the codeword configuration of the sub-slot-based HARQ ACK codebook.
[0090] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the wireless communication device supports a slot-based HARQ ACK codebook and a subslot-based HARQ ACK codebook, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering the symbol configuration of the subslot-based HARQ ACK codebook.
[0091] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the wireless communication device supports two sub-slot based HARQ ACK codebooks and is configured to separately report the PUCCH transmission characteristics based at least in part on the symbol configuration of the two sub-slot based HARQ ACK codebooks.
[0092] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the wireless communication device supports two subslot-based HARQ ACK codebooks and is configured to jointly report the PUCCH transmission characteristics for the multiple types of codebooks without considering the codeword configuration of the two subslot-based HARQ ACK codebooks.
[0093] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the wireless communication device is configured to separately report the PUCCH transmission characteristics regardless of the number of configured HARQ ACK codebooks.
[0094] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the wireless communication device is configured to jointly report the PUCCH transmission characteristic based at least in part on a number of configured HARQ ACK codebooks.
[0095] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the first feature group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a first code block configuration, and the second feature group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a second codebook configuration.
[0096] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, a single signature group is defined for a number of scheduling requests or HARQ ACKs multiplexed in all HARQ ACK codebooks.
[0097] although Figure 7 An example block diagram of process 700 is shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 700. Additionally or alternatively, two or more blocks of the process 700 may be executed in parallel.
[0098] Figure 8 800 is a block diagram of an example apparatus 800 for wireless communication. The apparatus 800 may be a wireless communication device, or the wireless communication device may include the apparatus 800. In some aspects, the apparatus 800 includes a receiving component 802 and a transmitting component 804, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 800 may use the receiving component 802 and the transmitting component 804 to communicate with another apparatus 806 (such as a UE, a base station, or another wireless communication device). As further shown, the apparatus 800 may include a communication manager 140. The communication manager 140 may include one or more of a determining component 808 or a reporting component 810, etc.
[0099] In some aspects, the apparatus 800 may be configured to perform Figure 6 Additionally or alternatively, the apparatus 800 may be configured to perform one or more of the processes described herein, such as Figure 7 The process 700. In some aspects, Figure 8The apparatus 800 and / or one or more components shown in FIG. 8 may include a combination of Figure 2 Additionally or alternatively, Figure 8 One or more of the components shown may be combined in Figure 2 In one or more components described herein, the components may be implemented in a computer program product. Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.
[0100] The receiving component 802 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from the equipment 806. The receiving component 802 may provide the received communications to one or more other components of the equipment 800. In some aspects, the receiving component 802 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the equipment 806. In some aspects, the receiving component 802 may include combining Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described wireless communication devices.
[0101] Transmission component 804 may transmit communications (such as reference signals, control information, data communications, or a combination thereof) to equipment 806. In some aspects, one or more other components of equipment 806 may generate communications and may provide the generated communications to transmission component 804 for transmission to equipment 806. In some aspects, transmission component 804 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, encoding, etc.) on the generated communications and may transmit the processed signals to equipment 806. In some aspects, transmission component 804 may include a combination of Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described wireless communication devices. In some aspects, the transmission component 804 can be co-located with the reception component 802 in a transceiver.
[0102] The determining component 808 can determine a PUCCH transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a subslot or the format of a PUCCH transmission set in the subslot, and wherein the wireless communication device supports at least one subslot HARQ ACK codebook. The reporting component 810 can report information identifying the PUCCH characteristic for multiple types of symbol codebooks.
[0103] Figure 8 The number and arrangement of components shown in the figure are provided as examples. In practice, there may be Figure 8 Additional components, fewer components, different components, or differently arranged components than those shown in FIG. Figure 8 Two or more components shown in may be implemented in a single component, or Figure 8 The single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Figure 8 The component collection (e.g., one or more components) shown in FIG. 1 may be described as being executed by Figure 8 Another set of components shown in FIG. 1 performs one or more functions.
[0104] The following provides an overview of some aspects of the disclosure:
[0105] Aspect 1: A wireless communication method performed by a wireless communication device, comprising: determining a physical uplink control channel (PUCCH) transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-time slot or the format of a PUCCH transmission set in the sub-time slot, and wherein the wireless communication device supports at least one sub-time slot hybrid automatic repeat request (HARQ) acknowledgment (ACK) codebook; and reporting information identifying the PUCCH characteristic for multiple types of codebooks.
[0106] Aspect 2: The method of aspect 1, wherein the number of PUCCH transmissions conveying channel state information and the number of iterations for multiplexing scheduling requests, HARQ ACKs or channel state information have fixed definitions.
[0107] Aspect 3: A method as in any one of Aspects 1 to 2, wherein a set of feature groups associated with the multiple types of codewords has a fixed definition, and wherein at least one feature group in the set of feature groups supports a 2x7 codeword codebook or a 7x2 codeword codebook having one PUCCH per subslot and one or more length configurations.
[0108] Aspect 4: The method according to any one of aspects 1 to 3, wherein the wireless communication device supports a single subslot-based HARQ ACK codebook, and is configured to report the PUCCH transmission characteristics separately for the multiple types of symbol codebooks.
[0109] Aspect 5: The method according to any one of aspects 1 to 4, wherein the wireless communication device supports a single subslot-based HARQ ACK codebook, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering length configuration.
[0110] Aspect 6: A method as in any one of Aspects 1 to 5, wherein the wireless communication device supports a slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook, and is configured to report the PUCCH transmission characteristics separately for the multiple types of codebooks based at least in part on the codeword configuration of the sub-slot-based HARQ ACK codebook.
[0111] Aspect 7: A method as in any one of Aspects 1 to 6, wherein the wireless communication device supports a time slot-based HARQ ACK codebook and a sub-slot-based HARQ ACK codebook, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of codebooks without considering the codeword configuration of the sub-slot-based HARQ ACK codebook.
[0112] Aspect 8: The method of any one of aspects 1 to 7, wherein the wireless communication device supports two sub-slot based HARQ ACK codebooks and is configured to separately report the PUCCH transmission characteristics based at least in part on the symbol configurations of the two sub-slot based HARQ ACK codebooks.
[0113] Aspect 9: A method as in any one of Aspects 1 to 8, wherein the wireless communication device supports two sub-slot based HARQ ACK codebooks, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of codebooks without considering the codeword configuration of the two sub-slot based HARQ ACK codebooks.
[0114] Aspect 10: The method of any one of aspects 1 to 9, wherein the wireless communication device is configured to separately report the PUCCH transmission characteristics regardless of the number of configured HARQ ACK codebooks.
[0115] Aspect 11: The method of any one of aspects 1 to 10, wherein the wireless communication device is configured to jointly report the PUCCH transmission characteristic based at least in part on the number of configured HARQ ACK codebooks.
[0116] Aspect 12: A method as in any one of Aspects 1 to 11, wherein the first feature group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a first code block configuration, and the second feature group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a second codebook configuration.
[0117] Aspect 13: The method of any one of aspects 1 to 12, wherein a single syndrome group is defined for a number of scheduling requests or HARQ ACKs multiplexed in all HARQ ACK codebooks.
[0118] Aspect 14: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions, which are stored in the memory and can be executed by the processor to cause the apparatus to perform a method as in one or more aspects of Aspects 1-13.
[0119] Aspect 15: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more aspects of aspects 1-13.
[0120] Aspect 16: An apparatus for wireless communication, comprising at least one device for performing the method of one or more aspects of aspects 1-13.
[0121] Aspect 17: 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 aspects of aspects 1-13.
[0122] Aspect 18: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 1-13.
[0123] 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 may be made in light of the above disclosure or may be acquired by practice of the various aspects.
[0124] 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, executables, threads of execution, procedures, and / or functions, etc., whether it is described in software, firmware, middleware, microcode, hardware description language or other terms. As used herein, processors are implemented with hardware, and / or a combination of hardware and software. It will be obvious that the systems and / or methods described herein can be implemented in different forms of hardware, and / or a combination of hardware and software. The actual dedicated control hardware or software code for implementing these systems and / or methods does not limit various aspects. Thus, the operation and behavior of these systems and / or methods are described herein without reference to specific software codes--it is understood that software and hardware can be designed to implement these systems and / or methods based at least in part on the description herein.
[0125] 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.
[0126] Although specific feature combinations are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner not specifically described in the claims and / or undisclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of various aspects includes that each dependent claim is combined with each other claim in this group of claims. As used herein, the phrase quoting "at least one of" a column of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover: a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc, or any other sorting of a, b and c).
[0127] Elements, actions or instructions used herein should not be interpreted as key or necessary unless explicitly described as such. Moreover, as used herein, the articles "one" and "a" 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 quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set (set)" and "group" are intended to include one or more projects (for example, related items, non-related items, or a combination of related items and non-related items), and can be used interchangeably with "one or more". In the occasion of intending to have only one project, the phrase "only one" or similar language is used. Moreover, as used herein, the terms "having", "containing", "including" etc. are intended to be open terms. In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a sequence is intended to be inclusive and may be used interchangeably with "and / or" unless explicitly stated otherwise (e.g., when used in conjunction with "either of" or "only one of").
Claims
1. A wireless communication device for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: determining the physical uplink control channel (PUCCH) transmission characteristics, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-slot or the format of a set of PUCCH transmissions in the sub-slot, and wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and Information identifying the PUCCH transmission characteristic is reported for a plurality of types of symbol codebooks associated with at least one supported HARQ ACK codebook.
2. The wireless communication device of claim 1, wherein the number of PUCCH transmissions conveying channel state information and the number of iterations for multiplexing scheduling requests, HARQ ACKs, or channel state information have fixed definitions.
3. The wireless communication device of claim 1 , wherein the sets of feature groups associated with the plurality of types of symbol codebooks have fixed definitions, and At least one of the set of syndromes supports a 2x7 symbol codebook or a 7x2 symbol codebook with one PUCCH per subslot and one or more length configurations.
4. The wireless communication device of claim 1, wherein the wireless communication device supports a single subslot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristics separately for the multiple types of symbol codebooks.
5. The wireless communication device of claim 1, wherein the wireless communication device supports a single subslot-based HARQ ACK codebook and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering length configuration.
6. The wireless communication device of claim 1 , wherein the wireless communication device supports a slot-based HARQ ACK codebook and a subslot-based HARQ ACK codebook, and is configured to separately report the PUCCH transmission characteristics for the multiple types of symbol codebooks based at least in part on a symbol configuration of the subslot-based HARQ ACK codebook.
7. The wireless communication device of claim 1, wherein the wireless communication device supports a slot-based HARQ ACK codebook and a subslot-based HARQ ACK codebook, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering a symbol configuration of the subslot-based HARQ ACK codebook.
8. The wireless communication device of claim 1, wherein the wireless communication device supports two subslot-based HARQ ACK codebooks and is configured to separately report the PUCCH transmission characteristics based at least in part on symbol configurations of the two subslot-based HARQ ACK codebooks.
9. The wireless communication device of claim 1, wherein the wireless communication device supports two subslot-based HARQ ACK codebooks, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering symbol configurations of the two subslot-based HARQ ACK codebooks.
10. The wireless communication device of claim 1, wherein the wireless communication device is configured to separately report the PUCCH transmission characteristics regardless of the number of configured HARQ ACK codebooks.
11. The wireless communication device of claim 1, wherein the wireless communication device is configured to jointly report the PUCCH transmission characteristics based at least in part on a number of configured HARQ ACK codebooks.
12. The wireless communication device of claim 1, wherein a first syndrome group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a first code block configuration, and a second syndrome group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a second codebook configuration.
13. The wireless communication device of claim 1, wherein a single signature group is defined for a number of scheduling requests or HARQ ACKs multiplexed in all HARQ ACK codebooks.
14. A wireless communication method performed by a wireless communication device, comprising: determining the physical uplink control channel (PUCCH) transmission characteristics, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-slot or the format of a set of PUCCH transmissions in the sub-slot, and wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and Information identifying the PUCCH transmission characteristic is reported for a plurality of types of symbol codebooks associated with at least one supported HARQ ACK codebook.
15. The method of claim 14, wherein the number of PUCCH transmissions conveying channel state information and the number of iterations for multiplexing scheduling requests, HARQ ACKs or channel state information have fixed definitions.
16. The method of claim 14, wherein the set of signature groups associated with the plurality of types of symbol codebooks has a fixed definition, and At least one of the set of syndromes supports a 2x7 symbol codebook or a 7x2 symbol codebook with one PUCCH per subslot and one or more length configurations.
17. The method of claim 14, wherein the wireless communication device supports a single subslot-based HARQ ACK codebook and is configured to report the PUCCH transmission characteristics separately for the multiple types of symbol codebooks.
18. The method of claim 14, wherein the wireless communication device supports a single subslot-based HARQ ACK codebook and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering length configuration.
19. The method of claim 14, wherein the wireless communication device supports a slot-based HARQ ACK codebook and a subslot-based HARQ ACK codebook, and is configured to separately report the PUCCH transmission characteristics for the multiple types of symbol codebooks based at least in part on a symbol configuration of the subslot-based HARQ ACK codebook.
20. The method of claim 14, wherein the wireless communication device supports a slot-based HARQ ACK codebook and a subslot-based HARQ ACK codebook, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering a symbol configuration of the subslot-based HARQ ACK codebook.
21. The method of claim 14, wherein the wireless communication device supports two subslot-based HARQ ACK codebooks and is configured to separately report the PUCCH transmission characteristics based at least in part on symbol configurations of the two subslot-based HARQ ACK codebooks.
22. The method of claim 14, wherein the wireless communication device supports two subslot-based HARQ ACK codebooks, and is configured to jointly report the PUCCH transmission characteristics for the multiple types of symbol codebooks without considering symbol configurations of the two subslot-based HARQ ACK codebooks.
23. The method of claim 14, wherein the wireless communication device is configured to separately report the PUCCH transmission characteristics regardless of the number of configured HARQ ACK codebooks.
24. The method of claim 14, wherein the wireless communication device is configured to jointly report the PUCCH transmission characteristics based at least in part on a number of configured HARQ ACK codebooks.
25. The method of claim 14, wherein a first syndrome group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a first code block configuration, and a second syndrome group is defined for a number of scheduling requests or HARQ ACKs multiplexed with a second codebook configuration.
26. The method of claim 14, wherein a single syndrome group is defined for a number of scheduling requests or HARQ ACKs multiplexed in all HARQ ACK codebooks.
27. A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising: One or more instructions that, when executed by one or more processors of a wireless communication device, cause the wireless communication device to: determining the physical uplink control channel (PUCCH) transmission characteristics, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-slot or the format of a set of PUCCH transmissions in the sub-slot, and wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and Information identifying the PUCCH transmission characteristic is reported for a plurality of types of symbol codebooks associated with at least one supported HARQ ACK codebook.
28. The non-transitory computer-readable medium of claim 27, wherein the number of PUCCH transmissions conveying channel state information and the number of iterations for multiplexing scheduling requests, HARQ ACKs, or channel state information have fixed definitions.
29. The non-transitory computer readable medium of claim 27, wherein the sets of feature groups associated with the plurality of types of symbol codebooks have fixed definitions, and At least one of the set of syndromes supports a 2x7 symbol codebook or a 7x2 symbol codebook with one PUCCH per subslot and one or more length configurations.
30. An apparatus for wireless communication, comprising: means for determining a physical uplink control channel (PUCCH) transmission characteristic, wherein the PUCCH transmission characteristic is the number of PUCCH transmissions in a sub-slot or the format of a set of PUCCH transmissions in the sub-slot, and wherein the apparatus supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and Means for reporting information identifying the PUCCH transmission characteristics for multiple types of symbol codebooks associated with at least one supported HARQ ACK codebook.