Acknowledgement location and timing for group common downlink control information

Abstract

This disclosure generally relates to wireless communications. In some aspects, a user equipment (UE) can determine, at least in part, physical uplink control channel resources dedicated to the UE for transmitting feedback messages of group common downlink control information (DCI), based on resource configuration. The UE can transmit the feedback information, at least in part, based on whether the group common DCI has been successfully received. Many other aspects are also provided.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for acknowledgment location and timing of group-common downlink control information. Background Art

[0002] 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 are capable of supporting communications with multiple users by sharing available system resources (e.g., bandwidth, transmission 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).

[0003] A wireless communication network may include several base stations (BS) that may support communication of several user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to a communication link from a BS to a UE, and 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, gNB, access point (AP), radio head, transmission reception point (TRP), new radio (NR) BS, 5G Node B, etc.

[0004] The above-mentioned 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. New Radio (NR) (also known as 5G) is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (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 diffusion OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation, improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards. However, as the demand for mobile broadband access continues to increase, there is a need to further improve LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0005] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: determining, based at least in part on a resource configuration, a physical uplink control channel (PUCCH) resource dedicated to the UE for transmitting a feedback message of group-common downlink control information (DCI). The method may include: transmitting the feedback information based at least in part on whether the group-common DCI is successfully received.

[0006] In some aspects, a method of wireless communication performed by a base station may include: transmitting a group-common DCI to a UE group; and, based at least in part on a resource configuration of the UE, determining a PUCCH resource dedicated to a UE in the UE group for transmitting a feedback message of the group-common DCI. The method may include: receiving a feedback message from the UE in the PUCCH resource dedicated to the UE.

[0007] In some aspects, a UE for wireless communication may include: a memory; and one or more processors, which are operably coupled to the memory. The memory and the one or more processors may be configured to: determine, based at least in part on resource configuration, a PUCCH resource dedicated to the UE to transmit a feedback message of a group-common DCI; and, based at least in part on whether the group-common DCI is successfully received, transmit the feedback information.

[0008] 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: transmit a group-common DCI to a UE group; determine, based at least in part on a resource configuration of the UE, a PUCCH resource dedicated to a UE in the UE group to transmit a feedback message of the group-common DCI; and receive a feedback message from the UE in the PUCCH resource dedicated to the UE.

[0009] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a UE, the one or more instructions may cause the one or more processors to: determine, based at least in part on resource configuration, a PUCCH resource dedicated to the UE for transmitting a feedback message of a group-common DCI; and transmit feedback information based at least in part on whether the group-common DCI is successfully received.

[0010] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a base station, the one or more instructions may cause the one or more processors to: transmit a group-common DCI to a UE group; determine, based at least in part on a resource configuration of the UE, a PUCCH resource dedicated to a UE in the UE group to transmit a feedback message of the group-common DCI; and receive a feedback message from the UE in the PUCCH resource dedicated to the UE.

[0011] In some aspects, an apparatus for wireless communication may include: a means for determining, based at least in part on resource configuration, physical uplink control channel resources dedicated to the apparatus for transmitting feedback messages for a group-common DCI; and a means for transmitting feedback information based at least in part on whether the group-common DCI is successfully received.

[0012] In some aspects, an apparatus for wireless communication may include: a device for transmitting a group-common DCI to a UE group; a device for determining, based at least in part on a resource configuration of the UE, a PUCCH resource dedicated to a UE in the UE group for transmitting a feedback message of the group-common DCI; and a device for receiving a feedback message from the UE in the PUCCH resource dedicated to the UE.

[0013] Aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems described herein with reference to and illustrated by the drawings and descriptions.

[0014] The features and technical advantages of the examples according to the present disclosure have been summarized quite comprehensively above so that the following detailed description can be better understood. In the following, other features and advantages will be described. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures to achieve the same purpose of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the features of the concepts disclosed herein, their organization and method of operation, and the associated advantages will be better understood from the following description. Each of the accompanying drawings is provided for illustration and description and is not provided as a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description briefly summarized above may be made by reference to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the attached drawings only illustrate certain typical aspects of the present disclosure and should not be considered as limiting the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0016] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with aspects of the present disclosure.

[0017] Figure 2 is a block diagram conceptually illustrating an example of a base station communicating with a user equipment (UE) in a wireless communication network according to aspects of the present disclosure.

[0018] Figure 3 is a diagram illustrating an example of beam scanning with a UE group according to aspects of the present disclosure.

[0019] Figure 4 is a diagram illustrating an example of group common downlink control information (DCI) according to aspects of the present disclosure.

[0020] Figure 5 is a diagram illustrating an example of a confirmation location of a group-common DCI according to aspects of the present disclosure.

[0021] Figure 6 is a diagram illustrating an example of a confirmation location of a group-common DCI according to aspects of the present disclosure.

[0022] Figure 7 is a diagram illustrating an example of confirmation timing of a group-common DCI according to aspects of the present disclosure.

[0023] Figure 8 is a diagram illustrating an example of confirmation timing of a group-common DCI according to aspects of the present disclosure.

[0024] Fig. 9 is a diagram illustrating example processes performed, for example, by a UE according to aspects of the present disclosure.

[0025] Fig.10 is a diagram illustrating example processes performed, for example, by a base station according to aspects of the present disclosure. DETAILED DESCRIPTION

[0026] Hereinafter, various aspects of the present disclosure will be described with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be understood as being limited to any specific structure or function proposed throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure comprehensive and complete, and to convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or implementation method. In addition, the scope of the present disclosure is intended to cover such a device or method implemented using other structures, functions, or structures and functions in addition to the various aspects of the disclosure set forth herein. It should be understood that any aspect disclosed herein may be embodied by one or more elements of the claims.

[0027] Several aspects of telecommunication systems will now be described 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 may be implemented using hardware, software, or a combination thereof. Whether these elements are implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0028] It should be noted that although various aspects may be described herein using terms commonly associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applied to communication systems based on other generations, such as 5G and future, including NR technology.

[0029] Figure 1is a diagram showing a wireless network 100 in which various aspects of the present disclosure may be implemented. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include several BSs 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G node B (NB), access point, transmission reception 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.

[0030] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) 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 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. A BS may support one or more (e.g., three) cells. In this document, the terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "node B", "5G NB", and "cell" may be used interchangeably.

[0031] In some aspects, the cells are not necessarily stationary, 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, and / or the like using any suitable transport network.

[0032] 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 is capable of relaying transmissions for other UEs. Figure 1 In the example shown, a relay station 110d may communicate with the macro BS 110a and the UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0033] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmission power levels, different coverage areas, and different interference effects in the wireless network 100. For example, a macro BS may have a high transmission power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmission power level (e.g., 0.1 to 2 watts).

[0034] 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 the BSs via a backhaul. The BSs may also communicate with each other, for example, directly or indirectly via a wireless or wired backhaul.

[0035] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. UEs may also be referred to as access terminals, terminals, mobile stations, subscriber units, stations, etc. UEs may be cellular phones (e.g., smart phones), personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, tablet computers, cameras, gaming devices, netbooks, smartbooks, ultrabooks, medical devices or instruments, biometric sensors / devices, wearable devices (smart watches, smart clothes, smart glasses, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets)), entertainment devices (e.g., music or video devices, or satellite radios), vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, global positioning system devices, or any other suitable device configured to communicate via wireless or wired media.

[0036] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc. 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, a connection to a network (e.g., a wide area network such as the Internet or a cellular network) or a connection to a network via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as user premises equipment (Customer Premises Equipment, CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as processor components, memory components, etc.). In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, electrically coupled, etc.

[0037] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0038] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary for communicating with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0039] As mentioned above, Figure 1 are provided as examples. Other examples may differ from the reference Figure 1 An example of description.

[0040] Figure 2The base station 110 and the UE 120 (which may be Figure 1 1. Block diagram of a design 200 of a base station 110 and a UE 120 for use with ...

[0041] At the base station 110, the transmission processor 220 can receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmission processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmission processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmission (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols (if applicable), and can provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 can process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, synchronization signals can be generated with position coding to convey additional information.

[0042] 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 (DEMOD) 254a to 254r, respectively. Each demodulator 254 may adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may also process the input samples (e.g., for OFDM, etc.) 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 (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data of UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0043] 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.

[0044] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262, and receive and process control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) 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 (if applicable), further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. 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 can 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 Figures 5 to 10 To describe various aspects.

[0045] At the base station 110, uplink signals from the UE 120 and other UEs may be received by an antenna 234, processed by a demodulator 232, detected by a MIMO detector 236 (if applicable), and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of an antenna 234, a modulator and / or demodulator 232, a MIMO detector 236, a receive processor 238, a transmit processor 220, and / or a TX MIMO processor 230. The transceiver may be used by a processor (e.g., the controller / processor 240) and a memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figures 5 to 10 To describe various aspects.

[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 UE 120 may perform one or more techniques associated with the location and time of confirmation of the group-common DCI as described in more detail elsewhere herein. 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 can execute or guide e.g. Fig. 9 The process of 900 Fig.10 1000 and / or other processes 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 for wireless communication. For example, one or more instructions, when executed (e.g., directly, or after compilation, conversion, interpretation, etc.) by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Fig. 9 The process of 900 Fig.10 The process 1000 and / or other processes described herein may be implemented. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, interpreting instructions, etc. The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0047] In some aspects, UE 120 may include: means for determining, based at least in part on resource configuration, a PUCCH resource dedicated to the UE for transmitting a feedback message of a group-common DCI; means for transmitting the feedback message based at least in part on whether the group-common DCI is successfully received, etc. In some aspects, these means may include a combination of 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: a device for transmitting a group-common DCI to the UE group; a device for determining, based at least in part on the resource configuration of the UE, a PUCCH resource dedicated to the UE in the UE group for transmitting a feedback message of the group-common DCI; a device for receiving the feedback message from the UE in the PUCCH resource dedicated to the UE, etc. In some aspects, such a device may include a combination of Figure 2 One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.

[0049] As mentioned above, Figure 2 are provided as examples. Other examples may differ from the reference Figure 2 An example of description.

[0050] Figure 3 is a diagram illustrating an example 300 of beam scanning with a group of UEs in accordance with aspects of the present disclosure. Figure 3 A base station (e.g., gNB) is shown with an antenna array that is divided into multiple subarrays for multi-user MIMO (MU-MIMO). The gNB can transmit multiple beams using the subarrays, and each beam can serve a UE group.

[0051] Figure 3It is shown that the gNB can transmit at least two beams: a first beam for a first UE group (e.g., UE1, UE2, and UE3) and a second beam for a second UE group (e.g., UE4, UE5, and UE6). The UEs of each group can be grouped together because they are spatially dense and / or in the same beam direction. Some UEs (e.g., IoT UEs) may not require a large bandwidth for the payload, and it may be appropriate to group such UEs to be covered by a single beam. The gNB can update the information of the UE group based at least in part on UE mobility and / or environmental mobility. By grouping UEs into a single beam, the gNB reduces beam measurement and reporting overhead. In addition, the gNB reduces the overhead of beam scanning signaling.

[0052] In some aspects, the gNB can use frequency division multiplexing (FDM) to save spatial size in order to multiplex UEs in different directions. Figure 3 (Right side) shows that UE1, UE2 and UE3 can be allocated different frequencies in the first beam, and UE4, UE5 and UE6 can be allocated different frequencies in the second beam.

[0053] As mentioned above, Figure 3 are provided as examples. Other examples may differ from the reference Figure 3 An example of description.

[0054] Figure 4 is a diagram illustrating an example 400 of a group-common DCI in accordance with aspects of the present disclosure. Figure 4 The group-common DCI shown may be referred to as DCI format 2_x and may be used for a UE group (eg, UE1 and UE2).

[0055] The group-common DCI may include multiple indication boxes indicating control information common to the UE group and / or specific to an individual UE. For example, indication boxes 0 to 3 (first part) in example 400 are specific to UE1, and indication boxes 4 to 7 (second part) are specific to UE2. The gNB may configure the start of each indication box with a radio resource control (RRC) message.

[0056] The group-common DCI may be scrambled by a Radio Network Temporary Identifier (RNTI) shared by the UE group. Examples of RNTI include Transmit Power Control (TPC)-PUCCH-RNTI or TPC-Physical Uplink Shared Channel (PUSCH)-RNTI.

[0057] As mentioned above, Figure 4 are provided as examples. Other examples may differ from the reference Figure 4 An example of description.

[0058] Figure 5is a diagram illustrating an example 500 of an acknowledgement location for a group-common DCI in accordance with aspects of the present disclosure.

[0059] A base station (e.g., a gNB) may transmit group-common DCI in a beam for a group of UEs, but the gNB cannot determine which UEs are receiving the group-common DCI. If the gNB cannot determine which UEs are receiving or not receiving the group-common DCI, communication with one or more UEs may be degraded. In addition, the gNB wastes processing and signaling resources communicating with UEs that do not successfully receive the group-common DCI.

[0060] According to various aspects described herein, a gNB may configure an individual UE in a UE group to use PUCCH resources specific to the individual UE. For example, the gNB may transmit to UE1 a resource configuration specifying PUCCH resources dedicated to UE1 to provide feedback messages. UE1 may transmit an acknowledgment message if the group-common DCI is successfully received, or transmit a negative acknowledgment if the group-common DCI is not successfully received. The gNB may receive the feedback message from UE1 in the PUCCH resources dedicated to UE1. In this way, UE1 may provide a low-overhead feedback message (e.g., 1 bit), and the gNB may identify which UE is providing the feedback message. Thus, the gNB may schedule communication with UE1 based at least in part on receiving the feedback message. If the gNB receives a negative acknowledgment or no acknowledgment from UE1, the gNB may determine not to schedule communication with UE1, or may resolve the problem with UE1. As a result, the gNB saves processing and signaling resources by communicating with the UE providing positive feedback information, and by receiving feedback from the UE in a simplified manner.

[0061] In some aspects, the gNB may transmit an indication of the dedicated PUCCH resources via an RRC message. Alternatively, the dedicated PUCCH resources may be pre-determined, such as the PUCCH resource with the lowest identifier. In some aspects, the gNB may transmit the PUCCH resource indicator for the UE in a group-common DCI. For example, Figure 5 An indicator box of a group-common DCI applicable to UE1 and UE2 is shown. The group-common DCI includes an indicator box (labeled PRI2) with a PUCCH resource indicator (PRI) for UE2. PRI2 may be located in the portion associated with UE2 (the last four indicator boxes). In some aspects, UE2 may determine where to find PRI2 from the resource configuration.

[0062] As mentioned above, Figure 5 are provided as examples. Other examples may differ from the reference Figure 5 An example of description.

[0063] Figure 6is a diagram illustrating an example 600 of an acknowledgement location for a group-common DCI in accordance with aspects of the present disclosure. Figure 6 Base stations (BSs) 610 (eg, Figure 1 and 2 Depicted BS 110, Figure 3 gNB, etc.) and UE 620 (e.g., Figure 1 and 2 The depicted UE 120, Figures 3 to 5 7 and the like). UE 620 may be a UE in a UE group.

[0064] As indicated by reference numeral 630, BS 610 may transmit a group-common DCI to a UE group including UE 620. In some aspects, the group-common DCI may indicate a PUCCH resource dedicated to the feedback message by UE 620. As indicated by reference numeral 635, UE 620 may determine the PUCCH resource dedicated to UE 620 based at least in part on a resource configuration. BS 610 may have transmitted the resource configuration (e.g., via an RRC message), or UE 620 may have stored configuration information including the resource configuration (the resource configuration may be predetermined). In some aspects, the resource configuration may specify the PUCCH resource dedicated to UE 620. In some aspects, the resource configuration may specify which indication box in the group-common DCI will indicate the PUCCH resource dedicated to UE 620. As indicated by reference numeral 640, UE 620 may transmit the feedback message in the PUCCH resource dedicated to UE 620.

[0065] In some aspects, BS 610 may configure UE 620 with a specific timing for transmitting feedback messages. For example, BS 610 may configure UE 620 with a specified amount of time to wait before starting to transmit feedback messages on PUCCH resources after receiving the end of the group-common DCI. The specified amount of time may be referred to as a "K4" value. In some aspects, BS 610 may configure UE 620 with a specified amount of time via an RRC message. In some aspects, the specified amount of time may be a predetermined amount of time, such as four time slots. In some aspects, the specified amount of time may be defined in the stored configuration information or in the resource configuration. In some aspects, BS 610 may indicate the specified amount of time in the group-common DCI. By knowing when to expect feedback messages from a specific UE, BS 610 may save processing and signaling resources.

[0066] As mentioned above, Figure 6 are provided as examples. Other examples may differ from the reference Figure 6 An example of description.

[0067] Figure 7are diagrams illustrating examples 700 , 702 of acknowledgement timing of a group-common DCI in accordance with aspects of the present disclosure.

[0068] In some aspects, a base station (e.g., BS 610, gNB) may indicate in a group-common DCI for a UE (e.g., UE 620) a specified amount of time (e.g., K4) to wait before transmitting a feedback message after receiving the group-common DCI. Figure 7 The example 700 in shows a fourth indicator box indicating a specified amount of time.The UE may know to identify the specified amount of time from the fourth indicator box based at least in part on the resource configuration.

[0069] In some aspects, the specified time amount may include a common offset (e.g., K4) common to all UEs in the UE group and a UE-specific offset (e.g., delta). The UE may add the UE-specific offset to the common offset. The gNB may indicate the common offset in an RRC message and / or in a group-common DCI. The gNB may indicate the UE-specific offset in an RRC message and / or in a group-common DCI. The common offset and / or the UE-specific offset may be a predetermined offset. Figure 7 Example 702 in shows a group-common DCI indicating a first delta (Delta0) for UE1, a second delta (Delta1) for UE2, and a common offset (K4). Delta0 is located in the first part (the first two indicator boxes) of the group-common DCI reserved for UE1, and Delta1 is located in the second part of the group-common DCI reserved for UE2.

[0070] UE1 may transmit the feedback message after waiting for K4+Delta0 after receiving the group-common DCI. UE2 may transmit the feedback message after waiting for K4+Delta1 after the group-common DCI. In some aspects, the gNB may indicate a common offset in the RRC message (or the common offset may be predetermined) and indicate a UE-specific offset in the group-common DCI.

[0071] Although the figures describe specific start and stop events for a specified amount of time (end of receiving group-common DCI to start of transmitting PUCCH resources), other events may be used to define the start and end times of the specified amount of time. Actual transmission delays due to distance may or may not be taken into account in the specified amount of time.

[0072] As mentioned above, Figure 7 Provide some examples. Other examples may differ from the reference Figure 7 An example of description.

[0073] Figure 8are diagrams illustrating examples 800 , 802 of acknowledgement timing of a group-common DCI in accordance with aspects of the present disclosure.

[0074] Figure 8 An example of timing offsets in a time division multiplexing distribution of PUCCH resources is shown 800. For example, after a common offset (K4), UE1 transmits a feedback message (delta is 0) at the end of the common offset, UE2 transmits a feedback message at another transmission opportunity after UE1, and UE3 transmits a feedback message at a transmission opportunity after UE2.

[0075] Figure 8 An example 802 of the same timing offset is shown, where delta indicates a frequency domain resource in the FDM distribution of PUCCH resources. For example, UE1 and UE2 both transmit their respective feedback messages after the end of a common offset, but UE1's delta specifies a first frequency domain resource and UE2's delta specifies a second frequency domain resource that is different from the first frequency domain resource. By configuring the timing of feedback message transmissions, the gNB has greater flexibility in managing processing and signaling resources for receiving feedback messages from UEs in a UE group served by a single beam. As a result, the gNB can improve communications and save processing and signaling resources.

[0076] As mentioned above, Figure 8 Provide some examples. Other examples may differ from the reference Figure 8 An example of description.

[0077] Fig. 9 900 is a diagram illustrating an example process 900 performed, for example, by a UE according to aspects of the present disclosure. Example process 900 is a UE (e.g., Figure 1 and 2 The depicted UE 120, Figures 3 to 5 and UE depicted in 7, Figure 6 An example of a UE 620, etc., depicted performing operations associated with acknowledgment location and timing of a group-common DCI.

[0078] like Fig. 9 As shown, in some aspects, process 900 may include: determining, based at least in part on the resource configuration, PUCCH resources dedicated to the UE to transmit feedback messages for the group-common DCI (block 910). For example, as described above, based at least in part on the resource configuration, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may determine PUCCH resources dedicated to the UE to transmit feedback messages for the group-common DCI.

[0079] like Fig. 9As further shown, in some aspects, process 900 may include: based at least in part on whether the group-common DCI is successfully received, transmitting a feedback message (block 920). For example, as described above, based at least in part on whether the group-common DCI is successfully received, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may transmit the feedback message.

[0080] Process 900 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.

[0081] In a first aspect, transmitting the feedback message includes transmitting an acknowledgement message based at least in part on determining that the group-common DCI was successfully received.

[0082] In a second aspect, alone or in combination with the first aspect, transmitting the feedback message includes transmitting a negative acknowledgement message based at least in part on determining that the group common DCI was not successfully received.

[0083] In a third aspect, alone or in combination with one or more of the first and second aspects, process 900 includes: receiving a resource configuration in an RRC message.

[0084] In a fourth aspect, alone or in combination with one or more of the first to third aspects, determining the PUCCH resources includes: receiving an indication of the PUCCH resources in a group-common DCI.

[0085] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the location of the indication is specified by a resource configuration.

[0086] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the UE is in a UE group associated with a group-common DCI, and the group-common DCI includes an indication of UE-specific PUCCH resources for each UE in the UE group.

[0087] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, transmitting the feedback message includes: transmitting the feedback message at a specified amount of time from the end of receiving the group-common DCI to the start of transmitting the PUCCH.

[0088] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 900 includes receiving an indication of a specified amount of time in an RRC message.

[0089] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the specified amount of time is a predetermined amount of time.

[0090] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the specified amount of time spans a specified number of transmission time slots.

[0091] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 900 includes receiving an indication of a specified amount of time in a group common DCI.

[0092] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the UE is in a UE group associated with a group-common DCI, and the specified amount of time includes a UE-specific offset and a common offset shared by the UE group.

[0093] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 900 includes: receiving an indication of a common offset in an RRC message.

[0094] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the common offset is a predetermined common offset.

[0095] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, process 900 includes: receiving an indication of a UE-specific offset in a group-common DCI.

[0096] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, process 900 includes: receiving an indication of a common offset in a group common DCI.

[0097] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, process 900 includes: receiving an indication of a UE-specific offset in a portion of a group-common DCI.

[0098] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the designated time amount of the UE is the same time amount as the designated time amount of another UE in the UE group, and the first frequency resource of the UE is a frequency resource different from the second frequency resource of the other UE.

[0099] although Fig. 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include Fig. 9 The depicted blocks may include more blocks, fewer blocks, different blocks, or differently arranged blocks. Additionally or alternatively, two or more blocks of process 900 may be performed in parallel.

[0100] Fig.101 is a diagram illustrating an example process 1000 performed, for example, by a base station, according to aspects of the present disclosure. Example process 1000 is a base station (e.g., Figure 1 and 2 Depicted BS 110, Figure 3 Depicted base station, Figure 6 An example of BS 610, etc.) performing operations associated with confirmation location and timing of group-common DCI is depicted.

[0101] like Fig.10 As shown, in some aspects, process 1000 may include transmitting a group-common DCI to a group of UEs (block 1010). For example, as described above, a base station (e.g., using transmit processor 220, receive processor 238, controller / processor 240, memory 242, etc.) may transmit a group-common DCI to a group of UEs.

[0102] like Fig.10 As further shown, in some aspects, process 1000 may include determining, based at least in part on a resource configuration of the UE, PUCCH resources dedicated to UEs in the group of UEs to transmit feedback messages for group-common DCI (block 1020). For example, as described above, based at least in part on a resource configuration of the UE, a base station (e.g., using transmit processor 220, receive processor 238, controller / processor 240, memory 242, etc.) may determine PUCCH resources dedicated to UEs in the group of UEs to transmit feedback messages for group-common DCI.

[0103] like Fig.10 As further shown, in some aspects, process 1000 may include receiving a feedback message from the UE in a PUCCH resource dedicated to the UE (block 1030). For example, as described above, a base station (e.g., using transmit processor 220, receive processor 238, controller / processor 240, memory 242, etc.) may receive a feedback message from the UE in a PUCCH resource dedicated to the UE.

[0104] Process 1000 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.

[0105] In a first aspect, receiving the feedback message includes receiving a confirmation message.

[0106] In a second aspect, alone or in combination with the first aspect, receiving the feedback message includes receiving a negative confirmation message.

[0107] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1000 includes: scheduling communications of the UE based at least in part on a feedback message from the UE.

[0108] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 1000 includes: transmitting resource configuration to the UE in an RRC message.

[0109] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1000 includes: transmitting an indication of PUCCH resources to a UE in a group-common DCI.

[0110] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the location of the indication is specified by a resource configuration.

[0111] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the group-common DCI includes an indication of UE-specific PUCCH resources for each UE in the UE group.

[0112] In an eighth aspect, either alone or in combination with one or more of aspects one to seven, receiving the feedback message comprises receiving the feedback message based at least in part on a specified amount of time from the end of the UE receiving the group-common DCI to the start of the UE transmitting the PUCCH.

[0113] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 1000 includes: transmitting an indication of the specified amount of time to the UE in an RRC message.

[0114] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, process 1000 includes: transmitting an indication of the specified amount of time to the UE via a prefix.

[0115] In an eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the specified amount of time spans a specified number of transmission time slots.

[0116] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 1000 includes: transmitting an indication of the specified amount of time in a group common DCI.

[0117] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the specified amount of time includes a UE-specific offset and a common offset shared by a group of UEs.

[0118] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 1000 includes: transmitting an indication of the common offset in an RRC message.

[0119] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, process 1000 includes: transmitting an indication of the common offset via a prefix.

[0120] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, process 1000 includes: transmitting an indication of a UE-specific offset in a group-common DCI.

[0121] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, process 1000 includes: transmitting an indication of a common offset in a group common DCI.

[0122] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, process 1000 includes: transmitting an indication of a UE-specific offset in a portion of a group-common DCI.

[0123] In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the designated time amount of the UE is the same time amount as the designated time amount of another UE in the UE group, and the first frequency resource of the UE is a frequency resource different from the second frequency resource of the other UE.

[0124] although Fig.10 Example blocks of process 1000 are shown, but in some aspects, process 1000 may include Fig.10 The depicted blocks may include more blocks, fewer blocks, different blocks, or a different arrangement of blocks. Additionally or alternatively, two or more blocks of process 1000 may be performed in parallel.

[0125] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the various aspects to the precise forms disclosed. Modifications and variations may be made based on the above disclosure, or may be acquired from the practice of various aspects.

[0126] As used herein, the term "component" is intended to be fully interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented with hardware, firmware, and / or a combination of hardware and software.

[0127] As used herein, satisfying a threshold may refer to a value 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.

[0128] Obviously, the systems and / or methods described herein can be implemented using different forms of hardware, firmware, and / or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code; it is understood that software and hardware are designed to implement these systems and / or methods based at least in part on the description herein.

[0129] Even if the specific combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not meant to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically set forth in the claims and / or disclosed in the specification. Although each dependent claim listed below may only directly depend on one claim, the disclosure of various aspects includes the combination of each dependent claim with each other claim in the claims. The phrase "at least one of" referring to the list of items refers to any combination of these items, including a single member. As an example, "at least one of a, b or c" is intended to cover a, b, c, a and b, a and c, b and c, and a and b and c, and any combination with multiple identical elements (e.g., a and a, a and a and a, a and a and b, a and a and c, a and b and b, a and c and c, b and b, b and b and b, b and b and c, c and c, and c and c and c, or any other ordering of a, b and c). Unless clearly described as such, the elements, actions or instructions used herein should not be understood as key or necessary. In addition, as used herein, the articles "a" and "an" refer to including one or more items and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, a combination of related items and unrelated items, etc.), and can be used interchangeably with "one or more". If only one item is intended to be used, the phrase "only one" or similar language is used. In addition, as used herein, the terms "have", "have", "contain", etc. are intended to be open-ended terms. In addition, the phrase "based on" means "based at least in part on", unless otherwise explicitly stated.

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: determining, based at least in part on the resource configuration, a physical uplink control channel (PUCCH) resource dedicated to the UE for transmission of a feedback message of group common downlink control information (DCI); as well as transmitting feedback information based at least in part on whether the group-common DCI was successfully received; Wherein, determining the PUCCH resource comprises: receiving an indication of the PUCCH resource in a group common DCI, wherein the UE is in a UE group associated with a group-common DCI, and wherein the group-common DCI comprises an indication of a UE-specific PUCCH resource for each UE in the UE group, wherein transmitting the feedback message comprises: transmitting the feedback message at a specified amount of time from the end of receiving the group-common DCI to the start of transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

2. The method according to claim 1, wherein: Transmitting the feedback message includes transmitting an acknowledgment message based at least in part on determining that the group-common DCI was successfully received.

3. The method according to claim 1, wherein: Transmitting the feedback message includes transmitting a negative acknowledgement message based at least in part on determining that the group-common DCI was not successfully received.

4. The method according to claim 1, further comprising: A resource configuration is received in a radio resource control message.

5. The method according to claim 1, wherein: The location of the indication is specified by the resource configuration.

6. The method according to claim 1, further comprising: An indication of the specified amount of time is received in a radio resource configuration message.

7. The method according to claim 1, wherein: The specified amount of time is a predetermined amount of time.

8. The method according to claim 1, wherein: The specified amount of time spans a specified number of transmission slots.

9. The method according to claim 1, further comprising: An indication of the specified amount of time is received in a group common DCI.

10. The method according to claim 1, further comprising: An indication of the common offset is received in a radio resource control message.

11. The method according to claim 1, wherein: The common offset is a predetermined common offset.

12. The method according to claim 1, comprising: An indication of a UE-specific offset is received in a group-common DCI.

13. The method according to claim 12, further comprising: An indication of the common offset is received in a group common DCI.

14. The method according to claim 12, further comprising: An indication of a UE-specific offset is received in part of the group-common DCI.

15. The method according to claim 1, wherein: The designated amount of time for the UE is the same amount of time as the designated amount of time for another UE in the UE group, and wherein the first frequency resource for the UE is a different frequency resource from the second frequency resource for the other UE.

16. A method of wireless communication performed by a base station, comprising: transmitting group common downlink control information (DCI) to a group of user equipments (UEs); determining, based at least in part on a resource configuration of the UE, a physical uplink control channel (PUCCH) resource dedicated to a UE in the group of UEs for transmitting a feedback message of a group-common DCI; as well as receiving a feedback message from the UE in a PUCCH resource dedicated to the UE, wherein the indication of the PUCCH resources is transmitted to the UE in a group-common DCI, and wherein the group-common DCI comprises an indication of the UE-specific PUCCH resources for each UE in the group of UEs, wherein receiving the feedback message comprises: receiving the feedback message based at least in part on a specified amount of time from the end of the UE receiving the group-common DCI to the start of the UE transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

17. The method according to claim 16, wherein: Receiving the feedback message includes: receiving a confirmation message.

18. The method according to claim 16, wherein: Receiving the feedback message includes: receiving a negative confirmation message.

19. The method according to claim 16, further comprising: Communications for the UE are scheduled based at least in part on the feedback message from the UE.

20. The method of claim 16, further comprising: The resource configuration is transmitted to the UE in a radio resource control message.

21. The method according to claim 16, wherein: The location of the indication is specified by the resource configuration.

22. The method of claim 16, further comprising: An indication of the specified amount of time is transmitted to the UE in a radio resource control message.

23. The method of claim 16, further comprising: The UE is configured to use the predetermined amount of time as the designated amount of time.

24. The method according to claim 16, wherein: The specified amount of time spans a specified number of transmission slots.

25. The method of claim 16, further comprising: An indication of the specified amount of time is transmitted in the group-common DCI.

26. The method of claim 16, further comprising: An indication of the common offset is transmitted in a radio resource control message.

27. The method of claim 16, further comprising: The UE is configured to use a predetermined offset as the common offset.

28. The method of claim 16, further comprising: An indication of the UE-specific offset is transmitted in the group-common DCI.

29. The method according to claim 28, further comprising: An indication of the common offset is transmitted in the group common DCI.

30. The method of claim 28, further comprising: An indication of the UE-specific offset is transmitted in part of the group-common DCI.

31. The method of claim 16, wherein: The designated amount of time for the UE is the same amount of time as the designated amount of time for another UE in the UE group, and wherein the first frequency resource for the UE is a different frequency resource from the second frequency resource for the other UE.

32. A user equipment (UE) for wireless communication, comprising: Memory; and One or more processors operably coupled to the memory, the memory and the one or more processors configured to: determining, based at least in part on the resource configuration, a physical uplink control channel resource dedicated to the UE for transmission of a feedback message of group common downlink control information (DCI); as well as transmitting feedback information based at least in part on whether the group-common DCI is successfully received, Wherein, determining the PUCCH resource comprises: receiving an indication of the PUCCH resource in a group common DCI, wherein the UE is in a UE group associated with a group-common DCI, and wherein the group-common DCI comprises an indication of a UE-specific PUCCH resource for each UE in the UE group, wherein transmitting the feedback message comprises: transmitting the feedback message at a specified amount of time from the end of receiving the group-common DCI to the start of transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

33. A base station for wireless communication, comprising: Memory; and One or more processors operably coupled to the memory, the memory and the one or more processors configured to: transmitting group common downlink control information (DCI) to a group of user equipments (UEs); determining, based at least in part on a resource configuration of the UE, a physical uplink control channel (PUCCH) resource dedicated to a UE in the group of UEs for transmitting a feedback message of a group-common DCI; as well as receiving a feedback message from the UE in a PUCCH resource dedicated to the UE, wherein the indication of the PUCCH resources is transmitted to the UE in a group-common DCI, and wherein the group-common DCI comprises an indication of the UE-specific PUCCH resources for each UE in the group of UEs, wherein receiving the feedback message comprises: receiving the feedback message based at least in part on a specified amount of time from the end of the UE receiving the group-common DCI to the start of the UE transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

34. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: The one or more instructions, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: determining, based at least in part on the resource configuration, a physical uplink control channel resource dedicated to the UE for transmission of a feedback message of group common downlink control information (DCI); as well as transmitting feedback information based at least in part on whether the group-common DCI is successfully received, Wherein, determining the PUCCH resource comprises: receiving an indication of the PUCCH resource in a group common DCI, wherein the UE is in a UE group associated with a group-common DCI, and wherein the group-common DCI comprises an indication of a UE-specific PUCCH resource for each UE in the UE group, wherein transmitting the feedback message comprises: transmitting the feedback message at a specified amount of time from the end of receiving the group-common DCI to the start of transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

35. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: The one or more instructions, when executed by one or more processors of a base station, cause the one or more processors to: transmitting group common downlink control information (DCI) to a group of user equipments (UEs); determining, based at least in part on a resource configuration of the UE, a physical uplink control channel (PUCCH) resource dedicated to a UE in the group of UEs for transmitting a feedback message of a group-common DCI; as well as receiving a feedback message from the UE in a PUCCH resource dedicated to the UE, wherein the indication of the PUCCH resources is transmitted to the UE in a group-common DCI, and wherein the group-common DCI comprises an indication of the UE-specific PUCCH resources for each UE in the group of UEs, wherein receiving the feedback message comprises: receiving the feedback message based at least in part on a specified amount of time from the end of the UE receiving the group-common DCI to the start of the UE transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

36. An apparatus for wireless communication, comprising: means for determining, based at least in part on the resource configuration, physical uplink control channel resources dedicated to the device for transmitting a feedback message of group common downlink control information (DCI); and means for transmitting feedback information based at least in part on whether the group-common DCI was successfully received, Wherein, determining the PUCCH resource comprises: receiving an indication of the PUCCH resource in a group common DCI, wherein the UE is in a UE group associated with a group-common DCI, and wherein the group-common DCI comprises an indication of a UE-specific PUCCH resource for each UE in the UE group, wherein transmitting the feedback message comprises: transmitting the feedback message at a specified amount of time from the end of receiving the group-common DCI to the start of transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

37. An apparatus for wireless communication, comprising: means for transmitting group common downlink control information (DCI) to a group of user equipment (UE); means for determining, based at least in part on a resource configuration of the UE, a physical uplink control channel (PUCCH) resource dedicated to a UE in the group of UEs for transmitting a feedback message of a group-common DCI; and means for receiving a feedback message from a UE in a PUCCH resource dedicated to the UE, wherein the indication of the PUCCH resources is transmitted to the UE in a group-common DCI, and wherein the group-common DCI comprises an indication of the UE-specific PUCCH resources for each UE in the group of UEs, wherein receiving the feedback message comprises: receiving the feedback message based at least in part on a specified amount of time from the end of the UE receiving the group-common DCI to the start of the UE transmitting the PUCCH, and The specified time amount includes a UE-specific offset and a common offset shared by a group of UEs.

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