Transmission occasion recycling among multiple configured grant configurations
By enabling self-recycling of unused transmission occasions through repetition or segmentation of payloads across different CG configurations, the method addresses inefficiencies in managing unused resources in wireless communications systems, improving reliability and reducing latency.
Patent Information
- Application Number
- PCT/CN2023/133270
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-22
- Publication Date
- 2025-05-30
AI Technical Summary
In wireless communications systems, especially those supporting multi-modal services like XR, there is a challenge in efficiently managing and recycling unused transmission occasions among multiple configured grant configurations. This leads to signaling overhead, potential conflicts with Quality of Service (QoS) specifications, and insufficient time for network entities to reschedule unused transmission occasions.
The proposed solution involves self-recycling of unused transmission occasions by user equipment (UE) communicating repetitions or segmented payloads across overlapping or offset transmission occasions of different configured grant (CG) configurations. This allows for efficient reuse of unused transmission resources without the need for explicit UTO-UCI signaling.
This approach reduces signaling overhead, increases channel capacity, and enhances communication reliability and latency performance by enabling the reuse of unused transmission resources within the existing CG configurations.
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Figure CN2023133270_30052025_PF_FP_ABST
Abstract
Description
TRANSMISSION OCCASION RECYCLING AMONG MULTIPLE CONFIGURED GRANT CONFIGURATIONS
[0001] INTRODUCTION
[0002] Field of the Disclosure
[0003] Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for transmission occasion recycling among multiple configured grant configurations.
[0004] Description of Related Art
[0005] Wireless communications systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, or other similar types of services. These wireless communications systems may employ multiple-access technologies capable of supporting communications with multiple users by sharing available wireless communications system resources with those users.
[0006] Although wireless communications systems have made great technological advancements over many years, challenges still exist. For example, complex and dynamic environments can still attenuate or block signals between wireless transmitters and wireless receivers. Accordingly, there is a continuous desire to improve the technical performance of wireless communications systems, including, for example: improving speed and data carrying capacity of communications, improving efficiency of the use of shared communications mediums, reducing power used by transmitters and receivers while performing communications, improving reliability of wireless communications, avoiding redundant transmissions and / or receptions and related processing, improving the coverage area of wireless communications, increasing the number and types of devices that can access wireless communications systems, increasing the ability for different types of devices to intercommunicate, increasing the number and type of wireless communications mediums available for use, and the like. Consequently, there exists a need for further improvements in wireless communications systems to overcome the aforementioned technical challenges and others.SUMMARY
[0007] One aspect provides a method for wireless communications by an apparatus. The method includes obtaining an indication that a first configured grant (CG) configuration and one or more second CG configurations are activated for communications; sending a first payload in a first transmission occasion of the first CG configuration; and sending a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.
[0008] Another aspect provides a method for wireless communications by an apparatus. The method includes sending an indication that a first CG configuration and one or more second CG configurations are activated for communications; obtaining a first payload in a first transmission occasion of the first CG configuration; and obtaining a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.
[0009] Another aspect provides a method for wireless communications by an apparatus. The method includes obtaining an indication that a first CG configuration and one or more second CG configurations are activated for communications; sending a first payload in a first transmission occasion of the first CG configuration; and sending a second payload in a second transmission occasion of the one or more second CG configurations, wherein payload data is distributed among at least the first payload and the second payload.
[0010] Another aspect provides a method for wireless communications by an apparatus. The method includes sending an indication that a first CG configuration and one or more second CG configurations are activated for communications; obtaining a first payload in a first transmission occasion of the first CG configuration; and obtaining a second payload in a second transmission occasion of the one or more second CG configurations, wherein payload data is distributed among at least the first payload and the second payload.
[0011] Other aspects provide: one or more apparatuses operable, configured, or otherwise adapted to perform any portion of any method described herein (e.g., such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses) ; one or more non-transitory, computer-readable media comprising instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform any portion of any method described herein (e.g., such that instructions may be included in only one computer-readable medium or in a distributed fashion across multiple computer-readable media, such that instructions may be executed by only one processor or by multiple processors in a distributed fashion, such that each apparatus of the one or more apparatuses may include one processor or multiple processors, and / or such that performance may be by only one apparatus or in a distributed fashion across multiple apparatuses) ; one or more computer program products embodied on one or more computer-readable storage media comprising code for performing any portion of any method described herein (e.g., such that code may be stored in only one computer-readable medium or across computer-readable media in a distributed fashion) ; and / or one or more apparatuses comprising one or more means for performing any portion of any method described herein (e.g., such that performance would be by only one apparatus or by multiple apparatuses in a distributed fashion) . By way of example, an apparatus may comprise a processing system, a device with a processing system, or processing systems cooperating over one or more networks.
[0012] The following description and the appended figures set forth certain features for purposes of illustration.BRIEF DESCRIPTION OF DRAWINGS
[0013] The appended figures depict certain features of the various aspects described herein and are not to be considered limiting of the scope of this disclosure.
[0014] FIG. 1 depicts an example wireless communications network.
[0015] FIG. 2 depicts an example disaggregated base station architecture.
[0016] FIG. 3 depicts aspects of an example base station and an example user equipment (UE) .
[0017] FIGS. 4A, 4B, 4C, and 4D depict various example aspects of data structures for a wireless communications network.
[0018] FIG. 5 illustrates an example wireless communications system where one or more UEs are engaged in communications of a multi-modal service.
[0019] FIG. 6 illustrates an example scheme for configuring multiple configured grant configurations.
[0020] FIG. 7A illustrates an example of CG configurations having overlapping transmission occasions.
[0021] FIG. 7B illustrates an example of CG configurations having transmission occasions offset in time from each other.
[0022] FIGS. 8-10 illustrate example self-recycling schemes for an unused transmission occasion of a CG configuration.
[0023] FIG. 11 depicts a process flow for self-recycling an unused transmission occasion in a system between a network entity and a UE.
[0024] FIG. 12 depicts a method for wireless communications.
[0025] FIG. 13 depicts another method for wireless communications.
[0026] FIG. 14 depicts another method for wireless communications.
[0027] FIG. 15 depicts another method for wireless communications.
[0028] FIG. 16 depicts aspects of an example communications device.
[0029] FIG. 17 depicts aspects of an example communications device.DETAILED DESCRIPTION
[0030] Aspects of the present disclosure provide apparatuses, methods, processing systems, and computer-readable mediums for self-recycling of unused transmission occasions among multiple configured grant configurations.
[0031] In some wireless communications systems (e.g., 5G New Radio (NR) systems and / or any future wireless communications system) , a user equipment (UE) may be allocated periodic resources to communicate with a network entity (e.g., a base station) . The periodic resource allocation may reduce the signaling overhead and latency encountered for dynamic resource scheduling. The periodic resource allocation may be referred to as semi-persistent scheduling (SPS) for downlink communications and a configured grant (CG) for uplink communications. In some cases, a periodic resource allocation may be configured for certain traffic with periodic transmissions, such as voice traffic or video traffic. In certain cases, a periodic resource allocation may be configured for traffic with certain latency and / or reliability specifications, such as ultra-reliable low latency communications (URLLC) including, for example, extended reality (XR) traffic, which may include virtual reality (VR) traffic, augmented reality (AR) traffic, and / or mixed reality (MR) traffic. Other examples of URLLC include industrial automation communications (e.g., discrete automation) , vehicle-to-everything communications (e.g., intelligent transport) , smart electric grid communications, etc.
[0032] As an example, an XR session may have multiple streams of traffic, and in some cases, communicated via multiple wireless communications devices (e.g., XR glasses, XR glove (s) , XR controller (s) , sensor (s) , etc. ) , as further described herein with respect to FIGS. 5A and 5B. The XR traffic streams may include, for example, pose traffic, control traffic, sensor traffic, haptic traffic, video traffic, and / or audio traffic. In some cases, the traffic streams of an XR session may have traffic specific quality of service (QoS) specifications. Such a service may be referred to as a multi-modal service or multi-modal traffic. For example, some XR traffic (e.g., video and / or control information) may have a high transmission reliability specification (e.g., a reliability of greater than 99%or even 99.9%) , whereas certain XR traffic (e.g., pose and / or gesture traffic) may have a low latency specification (e.g., a packet delay budget (PDB) of less than 10 milliseconds (ms) ) . The reliability specification may correspond to a specified packet error rate (PER) .
[0033] A UE may be configured with multiple CG resource allocations to accommodate multi-modal traffic or a multi-modal service, such as an XR session. For example, a first CG resource allocation may be configured to satisfy the reliability specification of one or more first traffic streams, whereas a second CG resource allocation may be configured to satisfy the low latency specification of one or more second traffic streams. In some cases, a transmission occasion of a CG resource allocation (e.g., the first CG resource allocation) may go unused due to the UE not having traffic to send in the transmission occasion. To allow a radio access network (RAN) to recycle the unused transmission occasion (e.g., schedule traffic in the transmission occasion for another UE) , the UE may send, to a network entity (e.g., a base station) , an indication that the transmission occasion will not be used by the UE. The indication may be sent via a specific type of uplink control information (UCI) , such as unused transmission occasion (UTO) -UCI. The UE may multiplex the UTO-UCI in each CG physical uplink shared channel (PUSCH) transmission if such UTO reporting is enabled for a particular CG configuration.
[0034] Technical problems for a UE having multiple CG resource allocations (for example, for a multi-modal service) include, for example, signaling overhead associated with reporting a UTO-UCI; ensuring any QoS specifications are satisfied for a period traffic assigned one or more CG configurations; and providing enough time for a network entity to reschedule an unused transmission occasion. As the UTO-UCI is multiplexed in each CG PUSCH transmission, the UTO-UCI occupies a non-trivial amount of signaling overhead and channel capacity, especially for periodic resources allocations configured for URLLC, such as XR traffic. In addition, as the multiple CG resource allocations may be configured for a multi-modal service with stringent QoS specifications as discussed above, allowing other UEs to communicate in an unused transmission occasion may conflict with the QoS specifications of the multi-modal service, such as reliability (e.g., PER) and / or latency (e.g., PDB) . Moreover, even with the UTO-UCI, a network entity may not have enough time to reschedule an unused transmission occasion for other communications, for example, due to round-trip-times and processing latencies. Thus, an unused transmission occasion may not be reclaimed for communications despite a UTO-UCI indicating the transmission occasion is available for communications.
[0035] Aspects described herein overcome the aforementioned technical problem (s) by providing certain schemes for self-recycling of unused transmission occasions among multiple CG configurations. Self-recycling of an unused transmission occasion may involve a UE communicating in a transmission occasion of a CG configuration assigned to the UE, where the transmission occasion would otherwise go unused or rescheduled for communications by other device (s) . In certain aspects, a UE may self-recycle an unused transmission occasion that overlaps with another transmission occasion, for example, as further described herein with respect to FIG. 7.
[0036] As an example, the UE may transmit a repetition of a payload in the unused transmission occasion of a first CG configuration and transmit the payload in the overlapping transmission occasion of a second CG configuration. In certain aspects, the UE may self-recycle an unused transmission occasion that is offset from another transmission occasion, for example, as further described herein with respect to FIGS. 8 and 9. In some cases, the UE may transmit a repetition of a payload in the unused transmission occasion of a first CG configuration and transmit the payload in the offset transmission occasion of a second CG configuration. In certain cases, the UE may transmit a portion of a payload in the unused transmission occasion of the first CG configuration and transmit another portion of the payload in the offset transmission occasion of the second CG configuration.
[0037] The techniques for transmission occasion self-recycling described herein may provide various beneficial effects and / or advantages. The techniques for transmission occasion self-recycling may enable improved wireless communication performance, such as reduced signaling overhead, increased channel capacity, reduced latency, and / or increased reliability. In certain cases, the improved wireless communication performance may be attributable to a UE communicating via the self-recycled transmission occasions instead of sending the UTO-UCIs as discussed above. The signaling overhead and channel capacity, which would be allocated for the UTO-UCIs in each of the PUSCH transmission of a CG configuration, may be used for other communications.
[0038] In some cases, the improved wireless communication performance may be attributable to a UE communicating repetitions in the self-recycled transmission occasions. A repetition may increase the reliability of a communication, for example, by increasing the signal quality of signals and / or redundant information communicated.
[0039] In certain cases, the improved wireless communication performance may be attributable to a UE communicating segmented payloads at reduced modulation and coding schemes (MCSs) and / or reduced code rates in the self-recycled transmission occasions. A reduced MCS may increase the reliability of communications, for example, due to the reduced MCS being less sensitive to the effects of signal propagation (e.g., path loss, fading, scattering, etc. ) . A reduced code rate may increase the reliability of communications, for example, due to the increased amount of redundant information communicated.
[0040] In some cases, the improved wireless communication performance may be attributable to a UE communicating in an earlier self-recycled transmission occasion, which may reduce the latency of communications, for example, as depicted in FIG. 9.
[0041] Introduction to Wireless Communications Networks
[0042] The techniques and methods described herein may be used for various wireless communications networks. While aspects may be described herein using terminology commonly associated with 3G, 4G, 5G, 6G, and / or other generations of wireless technologies, aspects of the present disclosure may likewise be applicable to other communications systems and standards not explicitly mentioned herein.
[0043] FIG. 1 depicts an example of a wireless communications network 100, in which aspects described herein may be implemented.
[0044] Generally, wireless communications network 100 includes various network entities (alternatively, network elements or network nodes) . A network entity is generally a communications device and / or a communications function performed by a communications device (e.g., a user equipment (UE) , a base station (BS) , a component of a BS, a server, etc. ) . As such communications devices are part of wireless communications network 100, and facilitate wireless communications, such communications devices may be referred to as wireless communications devices. For example, various functions of a network as well as various devices associated with and interacting with a network may be considered network entities. Further, wireless communications network 100 includes terrestrial aspects, such as ground-based network entities (e.g., BSs 102) , and non-terrestrial aspects (also referred to herein as non-terrestrial network entities) , such as satellite 140 and / or other aerial or spaceborne platform (s) , which may include network entities on-board (e.g., one or more BSs) capable of communicating with other network elements (e.g., terrestrial BSs) and UEs.
[0045] In the depicted example, wireless communications network 100 includes BSs 102, UEs 104, and one or more core networks, such as an Evolved Packet Core (EPC) 160 and 5G Core (5GC) network 190, which interoperate to provide communications services over various communications links, including wired and wireless links.
[0046] FIG. 1 depicts various example UEs 104, which may more generally include: a cellular phone, smart phone, session initiation protocol (SIP) phone, laptop, personal digital assistant (PDA) , satellite radio, global positioning system, multimedia device, video device, digital audio player, camera, game console, tablet, smart device, wearable device, vehicle, electric meter, gas pump, large or small kitchen appliance, healthcare device, implant, sensor / actuator, display, internet of things (IoT) devices, always on (AON) devices, edge processing devices, data centers, or other similar devices. UEs 104 may also be referred to more generally as a mobile device, a wireless device, a station, a mobile station, a subscriber station, a mobile subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a remote device, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, and others.
[0047] BSs 102 wirelessly communicate with (e.g., transmit signals to or receive signals from) UEs 104 via communications links 120. The communications links 120 between BSs 102 and UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 104 to a BS 102 and / or downlink (DL) (also referred to as forward link) transmissions from a BS 102 to a UE 104. The communications links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity in various aspects.
[0048] BSs 102 may generally include: a NodeB, enhanced NodeB (eNB) , next generation enhanced NodeB (ng-eNB) , next generation NodeB (gNB or gNodeB) , access point, base transceiver station, radio base station, radio transceiver, transceiver function, transmission reception point, and / or others. Each of BSs 102 may provide communications coverage for a respective coverage area 110, which may sometimes be referred to as a cell, and which may overlap in some cases (e.g., small cell 102’ may have a coverage area 110’ that overlaps the coverage area 110 of a macro cell) . A BS may, for example, provide communications coverage for a macro cell (covering relatively large geographic area) , a pico cell (covering relatively smaller geographic area, such as a sports stadium) , a femto cell (relatively smaller geographic area (e.g., a home) ) , and / or other types of cells.
[0049] Generally, a cell may refer to a portion, partition, or segment of wireless communication coverage served by a network entity within a wireless communication network. A cell may have geographic characteristics, such as a geographic coverage area, as well as radio frequency characteristics, such as time and / or frequency resources dedicated to the cell. For example, a specific geographic coverage area may be covered by multiple cells employing different frequency resources (e.g., bandwidth parts) and / or different time resources. As another example, a specific geographic coverage area may be covered by a single cell. In some contexts (e.g., a carrier aggregation scenario and / or multi-connectivity scenario) , the terms “cell” or “serving cell” may refer to or correspond to a specific carrier frequency (e.g., a component carrier) used for wireless communications, and a “cell group” may refer to or correspond to multiple carriers used for wireless communications. As examples, in a carrier aggregation scenario, a UE may communicate on multiple component carriers corresponding to multiple (serving) cells in the same cell group, and in a multi-connectivity (e.g., dual connectivity) scenario, a UE may communicate on multiple component carriers corresponding to multiple cell groups.
[0050] While BSs 102 are depicted in various aspects as unitary communications devices, BSs 102 may be implemented in various configurations. For example, one or more components of a base station may be disaggregated, including a central unit (CU) , one or more distributed units (DUs) , one or more radio units (RUs) , a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) , or a Non-Real Time (Non-RT) RIC, to name a few examples. In another example, various aspects of a base station may be virtualized. More generally, a base station (e.g., BS 102) may include components that are located at a single physical location or components located at various physical locations. In examples in which a base station includes components that are located at various physical locations, the various components may each perform functions such that, collectively, the various components achieve functionality that is similar to a base station that is located at a single physical location. In some aspects, a base station including components that are located at various physical locations may be referred to as a disaggregated radio access network architecture, such as an Open RAN (O-RAN) or Virtualized RAN (VRAN) architecture. FIG. 2 depicts and describes an example disaggregated base station architecture.
[0051] Different BSs 102 within wireless communications network 100 may also be configured to support different radio access technologies, such as 3G, 4G, and / or 5G. For example, BSs 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) ) may interface with the EPC 160 through first backhaul links 132 (e.g., an S1 interface) . BSs 102 configured for 5G (e.g., 5G NR or Next Generation RAN (NG-RAN) ) may interface with 5GC 190 through second backhaul links 184. BSs 102 may communicate directly or indirectly (e.g., through the EPC 160 or 5GC 190) with each other over third backhaul links 134 (e.g., X2 interface) , which may be wired or wireless.
[0052] Wireless communications network 100 may subdivide the electromagnetic spectrum into various classes, bands, channels, or other features. In some aspects, the subdivision is provided based on wavelength and frequency, where frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, or a subband. For example, 3GPP currently defines Frequency Range 1 (FR1) as including 410 MHz –7125 MHz, which is often referred to (interchangeably) as “Sub-6 GHz” . Similarly, 3GPP currently defines Frequency Range 2 (FR2) as including 24,250 MHz –71,000 MHz, which is sometimes referred to (interchangeably) as a “millimeter wave” ( “mmW” or “mmWave” ) . In some cases, FR2 may be further defined in terms of sub-ranges, such as a first sub-range FR2-1 including 24,250 MHz –52,600 MHz and a second sub-range FR2-2 including 52,600 MHz –71,000 MHz. A base station configured to communicate using mmWave / near mmWave radio frequency bands (e.g., a mmWave base station such as BS 180) may utilize beamforming (e.g., 182) with a UE (e.g., 104) to improve path loss and range.
[0053] The communications links 120 between BSs 102 and, for example, UEs 104, may be through one or more carriers, which may have different bandwidths (e.g., 5, 10, 15, 20, 100, 400, and / or other MHz) , and which may be aggregated in various aspects. Carriers may or may not be adjacent to each other. Allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL than for UL) .
[0054] Communications using higher frequency bands may have higher path loss and a shorter range compared to lower frequency communications. Accordingly, certain base stations (e.g., 180 in FIG. 1) may utilize beamforming 182 with a UE 104 to improve path loss and range. For example, BS 180 and the UE 104 may each include a plurality of antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate the beamforming. In some cases, BS 180 may transmit a beamformed signal to UE 104 in one or more transmit directions 182’. UE 104 may receive the beamformed signal from the BS 180 in one or more receive directions 182”. UE 104 may also transmit a beamformed signal to the BS 180 in one or more transmit directions 182”. BS 180 may also receive the beamformed signal from UE 104 in one or more receive directions 182’. BS 180 and UE 104 may then perform beam training to determine the best receive and transmit directions for each of BS 180 and UE 104. Notably, the transmit and receive directions for BS 180 may or may not be the same. Similarly, the transmit and receive directions for UE 104 may or may not be the same.
[0055] Wireless communications network 100 further includes a Wi-Fi AP 150 in communication with Wi-Fi stations (STAs) 152 via communications links 154 in, for example, a 2.4 GHz and / or 5 GHz unlicensed frequency spectrum.
[0056] Certain UEs 104 may communicate with each other using device-to-device (D2D) communications link 158. D2D communications link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink control channel (PSCCH) , and / or a physical sidelink feedback channel (PSFCH) .
[0057] EPC 160 may include various functional components, including: a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and / or a Packet Data Network (PDN) Gateway 172, such as in the depicted example. MME 162 may be in communication with a Home Subscriber Server (HSS) 174. MME 162 is the control node that processes the signaling between the UEs 104 and the EPC 160. Generally, MME 162 provides bearer and connection management.
[0058] Generally, user Internet protocol (IP) packets are transferred through Serving Gateway 166, which itself is connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation as well as other functions. PDN Gateway 172 and the BM-SC 170 are connected to IP Services 176, which may include, for example, the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a Packet Switched (PS) streaming service, and / or other IP services.
[0059] BM-SC 170 may provide functions for MBMS user service provisioning and delivery. BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and / or may be used to schedule MBMS transmissions. MBMS Gateway 168 may be used to distribute MBMS traffic to the BSs 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and / or may be responsible for session management (start / stop) and for collecting eMBMS related charging information.
[0060] 5GC 190 may include various functional components, including: an Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195. AMF 192 may be in communication with Unified Data Management (UDM) 196.
[0061] AMF 192 is a control node that processes signaling between UEs 104 and 5GC 190. AMF 192 provides, for example, quality of service (QoS) flow and session management.
[0062] Internet protocol (IP) packets are transferred through UPF 195, which is connected to the IP Services 197, and which provides UE IP address allocation as well as other functions for 5GC 190. IP Services 197 may include, for example, the Internet, an intranet, an IMS, a PS streaming service, and / or other IP services.
[0063] In various aspects, a network entity or network node can be implemented as an aggregated base station, as a disaggregated base station, a component of a base station, an integrated access and backhaul (IAB) node, a relay node, a sidelink node, to name a few examples.
[0064] FIG. 2 depicts an example disaggregated base station 200 architecture. The disaggregated base station 200 architecture may include one or more central units (CUs) 210 that can communicate directly with a core network 220 via a backhaul link, or indirectly with the core network 220 through one or more disaggregated base station units (such as a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) 225 via an E2 link, or a Non-Real Time (Non-RT) RIC 215 associated with a Service Management and Orchestration (SMO) Framework 205, or both) . A CU 210 may communicate with one or more distributed units (DUs) 230 via respective midhaul links, such as an F1 interface. The DUs 230 may communicate with one or more radio units (RUs) 240 via respective fronthaul links. The RUs 240 may communicate with respective UEs 104 via one or more radio frequency (RF) access links. In some implementations, the UE 104 may be simultaneously served by multiple RUs 240.
[0065] Each of the units, e.g., the CUs 210, the DUs 230, the RUs 240, as well as the Near-RT RICs 225, the Non-RT RICs 215 and the SMO Framework 205, may include one or more interfaces or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or an associated processor or controller providing instructions to the communications interfaces of the units, can be configured to communicate with one or more of the other units via the transmission medium. For example, the units can include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other units. Additionally or alternatively, the units can include a wireless interface, which may include a receiver, a transmitter or transceiver (such as a radio frequency (RF) transceiver) , configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other units.
[0066] In some aspects, the CU 210 may host one or more higher layer control functions. Such control functions can include radio resource control (RRC) , packet data convergence protocol (PDCP) , service data adaptation protocol (SDAP) , or the like. Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU 210. The CU 210 may be configured to handle user plane functionality (e.g., Central Unit –User Plane (CU-UP) ) , control plane functionality (e.g., Central Unit –Control Plane (CU-CP) ) , or a combination thereof. In some implementations, the CU 210 can be logically split into one or more CU-UP units and one or more CU-CP units. The CU-UP unit can communicate bidirectionally with the CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 210 can be implemented to communicate with the DU 230, as necessary, for network control and signaling.
[0067] The DU 230 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 240. In some aspects, the DU 230 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, or the like) depending, at least in part, on a functional split, such as those defined by the 3rd Generation Partnership Project (3GPP) . In some aspects, the DU 230 may further host one or more low PHY layers. Each layer (or module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 230, or with the control functions hosted by the CU 210.
[0068] Lower-layer functionality can be implemented by one or more RUs 240. In some deployments, an RU 240, controlled by a DU 230, may correspond to a logical node that hosts RF processing functions, or low-PHY layer functions (such as performing fast Fourier transform (FFT) , inverse FFT (iFFT) , digital beamforming, physical random access channel (PRACH) extraction and filtering, or the like) , or both, based at least in part on the functional split, such as a lower layer functional split. In such an architecture, the RU (s) 240 can be implemented to handle over the air (OTA) communications with one or more UEs 104. In some implementations, real-time and non-real-time aspects of control and user plane communications with the RU (s) 240 can be controlled by the corresponding DU 230. In some scenarios, this configuration can enable the DU (s) 230 and the CU 210 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0069] The SMO Framework 205 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 205 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements which may be managed via an operations and maintenance interface (such as an O1 interface) . For virtualized network elements, the SMO Framework 205 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface) . Such virtualized network elements can include, but are not limited to, CUs 210, DUs 230, RUs 240 and Near-RT RICs 225. In some implementations, the SMO Framework 205 can communicate with a hardware aspect of a 4G RAN, such as an open eNB (O-eNB) 211, via an O1 interface. Additionally, in some implementations, the SMO Framework 205 can communicate directly with one or more DUs 230 and / or one or more RUs 240 via an O1 interface. The SMO Framework 205 also may include a Non-RT RIC 215 configured to support functionality of the SMO Framework 205.
[0070] The Non-RT RIC 215 may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence / Machine Learning (AI / ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 225. The Non-RT RIC 215 may be coupled to or communicate with (such as via an A1 interface) the Near-RT RIC 225. The Near-RT RIC 225 may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (such as via an E2 interface) connecting one or more CUs 210, one or more DUs 230, or both, as well as an O-eNB, with the Near-RT RIC 225.
[0071] In some implementations, to generate AI / ML models to be deployed in the Near-RT RIC 225, the Non-RT RIC 215 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 225 and may be received at the SMO Framework 205 or the Non-RT RIC 215 from non-network data sources or from network functions. In some examples, the Non-RT RIC 215 or the Near-RT RIC 225 may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 215 may monitor long-term trends and patterns for performance and employ AI / ML models to perform corrective actions through the SMO Framework 205 (such as reconfiguration via O1) or via creation of RAN management policies (such as A1 policies) .
[0072] FIG. 3 depicts aspects of an example BS 102 and a UE 104.
[0073] Generally, BS 102 includes various processors (e.g., 318, 320, 330, 338, and 340) , antennas 334a-t (collectively 334) , transceivers 332a-t (collectively 332) , which include modulators and demodulators, and other aspects, which enable wireless transmission of data (e.g., data source 312) and wireless reception of data (e.g., data sink 314) . For example, BS 102 may send and receive data between BS 102 and UE 104. BS 102 includes controller / processor 340, which may be configured to implement various functions described herein related to wireless communications.
[0074] Generally, UE 104 includes various processors (e.g., 358, 364, 366, 370, and 380) , antennas 352a-r (collectively 352) , transceivers 354a-r (collectively 354) , which include modulators and demodulators, and other aspects, which enable wireless transmission of data (e.g., retrieved from data source 362) and wireless reception of data (e.g., provided to data sink 360) . UE 104 includes controller / processor 380, which may be configured to implement various functions described herein related to wireless communications.
[0075] In regards to an example downlink transmission, BS 102 includes a transmit processor 320 that may receive data from a data source 312 and control information from a controller / processor 340. The control information may be for the physical broadcast channel (PBCH) , physical control format indicator channel (PCFICH) , physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) , physical downlink control channel (PDCCH) , group common PDCCH (GC PDCCH) , and / or others. The data may be for the physical downlink shared channel (PDSCH) , in some examples.
[0076] Transmit processor 320 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. Transmit processor 320 may also generate reference symbols, such as for the primary synchronization signal (PSS) , secondary synchronization signal (SSS) , PBCH demodulation reference signal (DMRS) , and channel state information reference signal (CSI-RS) .
[0077] Transmit (TX) multiple-input multiple-output (MIMO) processor 330 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and / or the reference symbols, if applicable, and may provide output symbol streams to the modulators (MODs) in transceivers 332a-332t. Each modulator in transceivers 332a- 332t may process a respective output symbol stream to obtain an output sample stream. Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. Downlink signals from the modulators in transceivers 332a-332t may be transmitted via the antennas 334a-334t, respectively.
[0078] In order to receive the downlink transmission, UE 104 includes antennas 352a-352r that may receive the downlink signals from the BS 102 and may provide received signals to the demodulators (DEMODs) in transceivers 354a-354r, respectively. Each demodulator in transceivers 354a-354r may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples. Each demodulator may further process the input samples to obtain received symbols.
[0079] RX MIMO detector 356 may obtain received symbols from all the demodulators in transceivers 354a-354r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. Receive processor 358 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 104 to a data sink 360, and provide decoded control information to a controller / processor 380.
[0080] In regards to an example uplink transmission, UE 104 further includes a transmit processor 364 that may receive and process data (e.g., for the PUSCH) from a data source 362 and control information (e.g., for the physical uplink control channel (PUCCH) ) from the controller / processor 380. Transmit processor 364 may also generate reference symbols for a reference signal (e.g., for the sounding reference signal (SRS) ) . The symbols from the transmit processor 364 may be precoded by a TX MIMO processor 366 if applicable, further processed by the modulators in transceivers 354a-354r (e.g., for SC-FDM) , and transmitted to BS 102.
[0081] At BS 102, the uplink signals from UE 104 may be received by antennas 334a-t, processed by the demodulators in transceivers 332a-332t, detected by a RX MIMO detector 336 if applicable, and further processed by a receive processor 338 to obtain decoded data and control information sent by UE 104. Receive processor 338 may provide the decoded data to a data sink 314 and the decoded control information to the controller / processor 340.
[0082] Memories 342 and 382 may store data and program codes for BS 102 and UE 104, respectively.
[0083] Scheduler 344 may schedule UEs for data transmission on the downlink and / or uplink.
[0084] In various aspects, BS 102 may be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” may refer to various mechanisms of outputting data, such as outputting data from data source 312, scheduler 344, memory 342, transmit processor 320, controller / processor 340, TX MIMO processor 330, transceivers 332a-t, antenna 334a-t, and / or other aspects described herein. Similarly, “receiving” may refer to various mechanisms of obtaining data, such as obtaining data from antennas 334a-t, transceivers 332a-t, RX MIMO detector 336, controller / processor 340, receive processor 338, scheduler 344, memory 342, and / or other aspects described herein.
[0085] In various aspects, UE 104 may likewise be described as transmitting and receiving various types of data associated with the methods described herein. In these contexts, “transmitting” may refer to various mechanisms of outputting data, such as outputting data from data source 362, memory 382, transmit processor 364, controller / processor 380, TX MIMO processor 366, transceivers 354a-t, antenna 352a-t, and / or other aspects described herein. Similarly, “receiving” may refer to various mechanisms of obtaining data, such as obtaining data from antennas 352a-t, transceivers 354a-t, RX MIMO detector 356, controller / processor 380, receive processor 358, memory 382, and / or other aspects described herein.
[0086] In some aspects, a processor may be configured to perform various operations, such as those associated with the methods described herein, and transmit (output) to or receive (obtain) data from another interface that is configured to transmit or receive, respectively, the data.
[0087] In various aspects, artificial intelligence (AI) processors 318 and 370 may perform AI processing for BS 102 and / or UE 104, respectively. The AI processor 318 may include AI accelerator hardware or circuitry such as one or more neural processing units (NPUs) , one or more neural network processors, one or more tensor processors, one or more deep learning processors, etc. The AI processor 370 may likewise include AI accelerator hardware or circuitry. As an example, the AI processor 370 may perform AI- based beam management, AI-based channel state feedback (CSF) , AI-based antenna tuning, and / or AI-based positioning (e.g., global navigation satellite system (GNSS) positioning) . In some cases, the AI processor 318 may process feedback from the UE 104 (e.g., CSF) using hardware accelerated AI inferences and / or AI training. The AI processor 318 may decode compressed CSF from the UE 104, for example, using a hardware accelerated AI inference associated with the CSF. In certain cases, the AI processor 318 may perform certain RAN-based functions including, for example, network planning, network performance management, energy-efficient network operations, etc.
[0088] FIGS. 4A, 4B, 4C, and 4D depict aspects of data structures for a wireless communications network, such as wireless communications network 100 of FIG. 1.
[0089] In particular, FIG. 4A is a diagram 400 illustrating an example of a first subframe within a 5G (e.g., 5G NR) frame structure, FIG. 4B is a diagram 430 illustrating an example of DL channels within a 5G subframe, FIG. 4C is a diagram 450 illustrating an example of a second subframe within a 5G frame structure, and FIG. 4D is a diagram 480 illustrating an example of UL channels within a 5G subframe.
[0090] Wireless communications systems may utilize orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) on the uplink and downlink. Such systems may also support half-duplex operation using time division duplexing (TDD) . OFDM and single-carrier frequency division multiplexing (SC-FDM) partition the system bandwidth (e.g., as depicted in FIGS. 4B and 4D) into multiple orthogonal subcarriers. Each subcarrier may be modulated with data. Modulation symbols may be sent in the frequency domain with OFDM and / or in the time domain with SC-FDM.
[0091] A wireless communications frame structure may be frequency division duplex (FDD) , in which, for a particular set of subcarriers, subframes within the set of subcarriers are dedicated for either DL or UL. Wireless communications frame structures may also be time division duplex (TDD) , in which, for a particular set of subcarriers, subframes within the set of subcarriers are dedicated for both DL and UL.
[0092] In FIG. 4A and 4C, the wireless communications frame structure is TDD where D is DL, U is UL, and X is flexible for use between DL / UL. UEs may be configured with a slot format through a received slot format indicator (SFI) (dynamically through DL control information (DCI) , or semi-statically / statically through radio resource control (RRC) signaling) . In the depicted examples, a 10 ms frame is divided into 10 equally sized 1 ms subframes. Each subframe may include one or more time slots. In some examples, each slot may include 12 or 14 symbols, depending on the cyclic prefix (CP) type (e.g., 12 symbols per slot for an extended CP or 14 symbols per slot for a normal CP) . Subframes may also include mini-slots, which generally have fewer symbols than an entire slot. Other wireless communications technologies may have a different frame structure and / or different channels.
[0093] In certain aspects, the number of slots within a subframe (e.g., a slot duration in a subframe) is based on a numerology, which may define a frequency domain subcarrier spacing and symbol duration as further described herein. In certain aspects, given a numerology μ, there are 2μ slots per subframe. Thus, numerologies (μ) 0 to 6 may allow for 1, 2, 4, 8, 16, 32, and 64 slots, respectively, per subframe. In some cases, the extended CP (e.g., 12 symbols per slot) may be used with a specific numerology, e.g., numerology 2 allowing for 4 slots per subframe. The subcarrier spacing and symbol length / duration are a function of the numerology. The subcarrier spacing may be equal to 2μ×15 kHz, where μ is the numerology 0 to 6. As an example, the numerology μ=0 corresponds to a subcarrier spacing of 15 kHz, and the numerology μ=6 corresponds to a subcarrier spacing of 960 kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIGS. 4A, 4B, 4C, and 4D provide an example of a slot format having 14 symbols per slot (e.g., a normal CP) and a numerology μ=2 with 4 slots per subframe. In such a case, the slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.
[0094] As depicted in FIGS. 4A, 4B, 4C, and 4D, a resource grid may be used to represent the frame structure. Each time slot includes a resource block (RB) (also referred to as physical RBs (PRBs) ) that extends, for example, 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs) . The number of bits carried by each RE depends on the modulation scheme including, for example, quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM) .
[0095] As illustrated in FIG. 4A, some of the REs carry reference (pilot) signals (RS) for a UE (e.g., UE 104 of FIGS. 1 and 3) . The RS may include demodulation RS (DMRS) and / or channel state information reference signals (CSI-RS) for channel estimation at the UE.The RS may also include beam measurement RS (BRS) , beam refinement RS (BRRS) , and / or phase tracking RS (PT-RS) .
[0096] FIG. 4B illustrates an example of various DL channels within a subframe of a frame. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) , each CCE including, for example, nine RE groups (REGs) , each REG including, for example, four consecutive REs in an OFDM symbol.
[0097] A primary synchronization signal (PSS) may be within symbol 2 of particular subframes of a frame. The PSS is used by a UE (e.g., 104 of FIGS. 1 and 3) to determine subframe / symbol timing and a physical layer identity.
[0098] A secondary synchronization signal (SSS) may be within symbol 4 of particular subframes of a frame. The SSS is used by a UE to determine a physical layer cell identity group number and radio frame timing.
[0099] Based on the physical layer identity and the physical layer cell identity group number, the UE can determine a physical cell identifier (PCI) . Based on the PCI, the UE can determine the locations of the aforementioned DMRS. The physical broadcast channel (PBCH) , which carries a master information block (MIB) , may be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides a number of RBs in the system bandwidth and a system frame number (SFN) . The physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs) , and / or paging messages.
[0100] As illustrated in FIG. 4C, some of the REs carry DMRS (indicated as R for one particular configuration, but other DMRS configurations are possible) for channel estimation at the base station. The UE may transmit DMRS for the PUCCH and DMRS for the PUSCH. The PUSCH DMRS may be transmitted, for example, in the first one or two symbols of the PUSCH. The PUCCH DMRS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the particular PUCCH format used. UE 104 may transmit sounding reference signals (SRS) . The SRS may be transmitted, for example, in the last symbol of a subframe. The SRS may have a comb structure, and a UE may transmit SRS on one of the combs. The SRS may be used by a base station for channel quality estimation to enable frequency-dependent scheduling on the UL.
[0101] FIG. 4D illustrates an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in one configuration. The PUCCH carries uplink control information (UCI) , such as scheduling requests, a channel quality indicator (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , and HARQ ACK / NACK feedback. The PUSCH carries data, and may additionally be used to carry a buffer status report (BSR) , a power headroom report (PHR) , and / or UCI.
[0102] Example Multiple Configured Grant Configurations
[0103] A UE may be configured with multiple periodic resource allocations, such as SPS configurations for downlink communications and / or CG configurations for uplink communications, as discussed above. In some cases, multiple transmission occasions may be allocated in a period of a single CG PUSCH configuration, for example, as described herein with respect to FIG. 6. Multiple CG configurations may be assigned to a UE to satisfy certain QoS specifications of a service, such as a multi-modal service. As an example, an XR session may impose certain QoS specifications across various traffic streams. An XR device may send a video stream to a server to be processed, for example, with XR content, and the server may send the processed video stream with the XR content to the XR device. Thus, an XR session may have uplink video frame traffic that includes video frames varying in size and / or large in size. Such video traffic may have a high reliability specification (e.g., 99%or more) , for example, in terms of a PER. The XR session may also have uplink traffic for pose information, gesture information, control information, sensor measurements, one or more audio channels, etc. As an example, the pose traffic and / or the gesture traffic may have a low latency specification (e.g., less than 10 ms) , for example, in terms of a PDB.
[0104] FIG. 5 illustrates an example wireless communications system 500 where one or more XR devices 504a–c are engaged in communications of a multi-modal service, such as XR traffic. In this example, the XR devices 504a–c may communicate with an application server 506 through a network entity 502. The XR devices 504a–c may be an example of one or more UEs that communicate the multi-modal traffic of one or more users. In some cases, the XR devices 504a–c may communicate multi-modal traffic of a single user. For example, the XR devices 504a–c may be or include XR glasses, an XR headset 504a, XR gloves 504b, XR controllers 504c, one or more sensors, an XR base station, etc. The network entity 502 may be an example of the BS 102 or any disaggregated entity thereof as described herein with respect to FIG. 2. The application server 506 may be or include an XR application server that hosts certain XR content for the XR devices 504a–c. The application server 506 may be or include one or more computing devices including, for example, a server, a computer (e.g., a laptop computer, a tablet computer, a personal computer (PC) , a desktop computer, etc. ) , a virtual device, or any other electronic device or computing system capable of hosting one or more XR sessions or multi-modal services.
[0105] The XR devices 504a–c may communicate multi-modal traffic 508 via one or more wireless communication channels between the XR devices 504a–c and the network entity 502. The network entity 502 may route the multi-modal traffic 508 between the application server 506 and the XR devices 504a–c. The multi-modal traffic 508 may include various traffic streams associated with a service (e.g., an XR session) including, for example, pose traffic, control traffic, sensor traffic, haptic traffic, video traffic, and / or audio traffic. As an example of some traffic involved in cloud-based AR rendering, the application server 506 may obtain video frames captured at the XR headset 504 along with pose information and / or control information. The application server 506 may overlay (or determine where to overlay) computer generated content in the video frames, such as textual information or computer generated visualizations. The application server 506 may send, to the XR headset 504a, the augmented video frames and / or information to render the augmented video frames at the XR headset 504a. In some cases, the application server 506 may send other traffic streams to the XR devices 504a–c, such as audio traffic, haptic feedback information, etc. In certain cases, the XR devices 504a–c may be configured with multiple CG configurations to enable the multi-modal traffic 508 to satisfy certain QoS specifications as discussed herein.
[0106] FIG. 6 illustrates an example scheme for configuring multiple CG configurations 620, 630, 640, for example, for a multi-modal service (such as XR) . In this example, a UE (e.g., XR device (s) 504a–c) is configured with a first CG configuration 620 (also labeled as CG configuration 0) , a second CG configuration 630 (also labeled as CG configuration 1) , and a third CG configuration 640 (also labeled as CG configuration 2) . In certain cases, each of the CG configurations 620, 630, 640 may include periodic resource allocations configured for a specific traffic stream of the multi-modal service. As an example, the first CG configuration 620 may be configured to carry video frame traffic; the second CG configuration 620 may be configured to carry pose and / or control information; and the third CG configuration 630 may be configured to carry audio traffic (e.g., voice traffic) and / or data traffic.
[0107] The first CG configuration 620 includes one or more periodic resource allocations, for example, time-frequency resources as described herein with respect to FIGS. 4A-4D. For example, the first CG configuration 620 may define that multiple transmission occasions 622a–n (arranged in a sequence over time) are allocated in a first period 624a of the first CG configuration 620, and so on for subsequent periods, for example, a second period 624b of the first CG configuration 620. A transmission occasion may represent or correspond to one or more communication resources (e.g., time resource (s) and frequency resource (s) ) scheduled for a communication (e.g., a signal transmission or reception) . The periodic resource allocations of the first CG configuration 620 are representative of the other CG configurations 630, 640. For example, the second CG configuration 630 may define that a transmission occasion 632 is allocated in a period 634 of the second CG configuration 630, and the third CG configuration 640 may define that a transmission occasion 642 is allocated in a period 644 of the third CG configuration 640.
[0108] In this example, the periodicity of the second CG configuration 630 is offset in time from the first CG configuration 620. The first CG configuration 620 and the second CG configuration 630 have the same duration of periodicity. The third CG configuration 640 has a periodicity duration that is longer than the first CG configuration 620 and the second CG configuration 630, for example, twice the duration.
[0109] Note that the CG configurations 620, 630, 630 are examples of configurations for a multi-modal service. Other CG configurations may be used in addition to or instead of those depicted in FIG. 6. For example, the CG configurations may have different periodicities, different periodicity offsets or alignments, different multi-transmission occasions per period, different time domain resource allocations, different frequency domain resource allocations, different modulation and coding schemes (MCSs) , etc.
[0110] In some cases, the XR traffic may have two streams of uplink traffic. For example, a first stream is for pose / control traffic, and a second stream is for aggregating scene, video, data, and audio.
[0111] In certain cases, the XR traffic may have three streams of uplink traffic. As an example, a first stream is for pose / control traffic; a second stream is for aggregating streams of scene and video; and a third stream is for aggregating streams of audio and data. As another example, a first stream is for pose / control traffic; a second stream is for interlaced video traffic; and a third stream is for progressive-scan video traffic.
[0112] FIG. 7A illustrates an example of CG configurations 710, 720 having overlapping transmission occasions. In this example, a UE may be configured with a first CG configuration 710 and a second CG configuration 720. The first CG configuration 710 has a first transmission occasion 712 that overlaps in time with a second transmission occasion 722 of the second CG configuration 720. In some cases, the second transmission occasion 722 may be unused by the UE for communicating data as depicted with the diagonal fill pattern.
[0113] FIG. 7B illustrates an example of CG configurations 730, 740 having transmission occasions offset in time from each other. In this example, a UE may be configured with a third CG configuration 730 and a fourth CG configuration 740. The third CG configuration 730 has a third transmission occasion 732 that is offset in time from a fourth transmission occasion 742. In some cases, the fourth transmission occasion 742 may be unused by the UE for communicating data.
[0114] As discussed above, the UE may be configured to notify a network entity of whether a transmission occasion is unused (e.g., 722 and 742) to allow the network entity to reschedule the transmission occasion for other traffic. For example, the UE may multiplex a UTO-UCI in each CG PUSCH transmission for a CG PUSCH configuration to inform the network entity of any unused transmission occasions. However, the UTO-UCI occupies a non-trivial amount of signaling overhead and / or channel capacity, especially for multi-modal traffic as described herein.
[0115] Aspects Related to Transmission Occasion Recycling among Multiple Configured Grant Configurations
[0116] Aspects of the present disclosure provide certain schemes for self-recycling of unused transmission occasions among multiple CG configurations, such as the unused transmission occasions depicted in FIGS. 7A and 7B.
[0117] FIGS. 8-10 illustrate example self-recycling schemes 800, 900, 1000 for an unused transmission occasion of a CG configuration. In these examples, a UE may be configured with a first CG configuration 810, 910, 1010 and a second CG configuration 820, 920, 1020, as depicted in FIGS. 8-10, respectively. The UE may communicate first traffic (e.g., pose information) via one or more first resources of the first CG configuration 810, 910, 1010; and the UE may communicate second traffic (e.g., video frame traffic) via one or more second resources of the second CG configuration 820, 920, 1020. In some cases, the first traffic and the second traffic may be part of a multi-modal service, such as an XR session, for example, as described herein with respect to FIGS. 5 and 6.
[0118] In some cases, the UE may not have a payload of the second traffic to send in a transmission occasion of the second CG configuration 820, 920, 1020. The UE may identify that the transmission occasion will be unused for sending any of the second traffic. Thus, the UE may determine to self-recycle the unused transmission occasion with other traffic, such as the first traffic of the first CG configuration 810, 910, 1010, as further described herein.
[0119] FIG. 8 illustrates an example self-recycling scheme 800 for overlapping transmission occasions of multiple CG configurations. In this example, a first transmission occasion 812 of the first CG configuration 810 overlaps in time with a second transmission occasion 822 of the second CG configuration 820, where the second transmission occasion 822 will be unused for sending any of the second traffic as described above. The UE may determine to self-recycle the second transmission occasion 822 with other traffic, such as the first traffic of the first CG configuration 810. For example, the UE may send a transmission in the second transmission occasion 822, where the transmission is a repetition of a payload transmitted in the first transmission occasion 812 of the first CG configuration 810. A repetition may include a redundant transmission with the same, more, or less redundancy information than the payload transmitted in the first transmission occasion 812. In other words, the repetition at the second transmission occasion 822 may be encoded with the same or different code rate of the payload at the first transmission occasion 812. The repetition may enable improved reliability for the first traffic. A payload may be or include one or more of: a packet, a protocol data unit, a data block, a transport block, a code block, or a group of code blocks.
[0120] In certain aspects, the UE may send, to a network entity, an indication 830 that the second transmission occasion 822 is being recycled. The indication 830 may be transmitted with the recycled transmission occasion or earlier than the recycled transmission occasion. In some cases, the indication may indicate that the second transmission occasion 822 will be carrying a repetition of the payload sent in the first transmission occasion 812. The UE may send the indication 830 via Layer 2 signaling (e.g., a medium access control (MAC) control element (CE) ) , which may be multiplexed with other data such as the first traffic or the second traffic. In some cases, the UE may send the indication 830 via uplink control information (UCI) , which may be multiplexed in the resources of the CG configurations 810, 820.
[0121] As an example, the UE may send the indication 830 in one or more first resources 814 (e.g., a PUSCH resource allocation) of the first CG configuration 810 and / or one or more second resources 824 of the second CG configuration 820, where the first resource (s) 814 and the second resource (s) 824 occur earlier than the second transmission occasion 822. In some cases, the UE may send the indication 830 in the first transmission occasion 812 and / or the second transmission occasion 822.
[0122] In certain cases, the indication 830 may be in certain resource elements of the first resource (s) 814 and / or the second resource (s) 824. The UE may be configured to avoid puncturing or rate matching the resource elements used for the indication 830. For example, the resource elements used for the indication 830 may be assigned a particular priority (e.g., a highest priority) that avoids rate matching or puncturing or reduces the likelihood of rate matching or puncturing. The indication 830 may include the CG configuration index of the CG configuration that is being recycled in the second transmission occasion 822. For example, the indication 830 may include the index of the first CG configuration 810 to indicate that a transmission of the first CG configuration 810 will be repeated in a transmission occasion of the second CG configuration 820. In some cases, the network entity may send, to the UE, a response to the indication 830, for example, as further described herein with respect to FIG. 11.
[0123] FIG. 9 illustrates an example self-recycling scheme 900 where a payload 940 arrives earlier than expected for a first transmission occasion 912 of a first CG configuration 910, and an unused transmission occasion 922 of a second CG configuration 920 is available for communicating the payload 940. In this example, a first transmission occasion 912 of the first CG configuration 910 is offset in time (e.g., by a duration 950) from a second transmission occasion 922 of the second CG configuration 920, where the second transmission occasion 922 will be unused for sending any of the second traffic as previously described.
[0124] As discussed above, the UE may determine to self-recycle the second transmission occasion 922 with other traffic, such as the first traffic of the first CG configuration 910. As an example, the UE may obtain a payload 940 of the first traffic earlier than expected for transmitting in the first transmission occasion 912 (e.g., at time 942 that occurs earlier than the first transmission occasion 912) . In some cases, an application (e.g., an XR application running on the UE) may generate the payload 940 for transmission in the first transmission occasion 912. The UE may obtain the payload 940 with enough time to send at least a portion of the payload 940 in the second transmission occasion 922. The second transmission 922 may be the next available transmission occasion of the second CG configuration 920 from when the payload 940 is obtained at the UE. The first transmission occasion 912 may be the next available transmission occasion of the first CG configuration 910 from when the second transmission occasion 922 occurs. The payload 940 may arrive earlier due to jitter in the first traffic. For example, XR traffic may have a jitter within [-4 ms, 4 ms] . In certain cases, the UE may determine to self-recycle the second transmission occasion 922 with the payload 940 due to the second transmission occasion 922 occurring within the expected jitter of the first traffic.
[0125] In some cases, the UE may send the payload 940 in the second transmission occasion 922, and the UE may send a repetition of the payload 940 in the first transmission occasion 912. The repetition of the payload 940 may include a redundant transmission with the same, more, or less redundancy information than the payload transmitted in the second transmission occasion 922. The repetition of the payload 940 may enable improved reliability for the first traffic. In some cases, transmission of the payload 940 in the earlier second transmission occasion 922 may enable reduced latency for the first traffic.
[0126] In certain cases, the UE may distribute the payload 940 among at least the first transmission occasion 912 and the second transmission occasion 922. For example, the UE may segment the payload 940 into at least a first portion (e.g., one or more code blocks) and a second portion (e.g., one or more code blocks) . The UE may send the first portion in the second transmission occasion 922, and the UE may send the second portion in the first transmission occasion 912. The distributed payload may allow the UE to transmit the portions of the payload with a reduced modulation and coding scheme (MCS) , and thus, an increased reliability. As an example, the UE may increase the redundancy information used in each of the transmission occasions 912, 922. In some cases, the UE may adjust the type of modulation used for transmitting the portions of the payload, for example, from QAM to QPSK.
[0127] In certain aspects, the UE may send, to a network entity, an indication 930 that the second transmission occasion 922 is being recycled, for example, as described herein with respect to FIG. 8. In some cases, the indication 930 may indicate that a repetition is being transmitted in the first transmission occasion 912. In certain cases, the indication 930 may indicate that the payload 940 is being distributed among at least the first transmission occasion 912 and the second transmission 922. The indication 930 may indicate the MCS selected for the first transmission occasion 912 and / or the second transmission occasion 922.
[0128] FIG. 10 illustrates an example self-recycling scheme 1000 where traffic arrives later than expected for a transmission occasion of a first CG configuration 1010, and an unused transmission occasion of a second CG configuration 1020 is available for communicating the traffic. In this example, a first transmission occasion 1012a of the first CG configuration 1010 is offset in time (e.g., by a duration 1050) from a second transmission occasion 1022 of the second CG configuration 1020, where the second transmission occasion 1022 will be unused for sending any of the second traffic as previously described.
[0129] As discussed above, the UE may determine to self-recycle the second transmission occasion 1022 with other traffic, such as the first traffic of the first CG configuration 1010. As an example, the UE may obtain a payload 1040 of the first traffic later than expected for transmitting in a third transmission occasion 1012b of the first CG configuration 1010 (e.g., at time 1042 that occurs later than the third transmission occasion 1012b) . The UE may obtain the payload 1040 with enough time to send at least a portion of the payload 1040 in the second transmission occasion 1022. The second transmission occasion 1022 may be the next available transmission occasion of the second CG configuration 1020 from when the payload 1040 is obtained at the UE. The first transmission occasion 1012a may be the next available transmission occasion of the first CG configuration 1010 from when the second transmission occasion 1022 occurs. The payload 940 may arrive later due to jitter in the first traffic as discussed above.
[0130] In certain aspects, the UE may send the payload 1040 in the second transmission occasion 1022. In some cases, the UE may send a repetition of the payload 1040 in the first transmission occasion 1012a. In certain cases, the UE may distribute the payload 1040 among at least the first transmission occasion 1012a and the second transmission occasion 1022, for example, as described herein with respect to FIG. 9. In certain aspects, the UE may send, to a network entity, an indication 1030 that the second transmission occasion 1022 is being recycled, for example, as described herein with respect to FIGS. 8 and 9.
[0131] Example Operations of Self-Recycling a Transmission Occasion in a Communications System
[0132] FIG. 11 depicts a process flow 1100 for self-recycling an unused transmission occasion in a system between a network entity 1102 and a user equipment (UE) 1104. In some aspects, the network entity 1102 may be an example of the BS 102 depicted and described with respect to FIG. 1 and 3 or a disaggregated base station depicted and described with respect to FIG. 2. Similarly, the UE 1104 may be an example of UE 104 depicted and described with respect to FIG. 1 and 3. However, in other aspects, UE 1104 may be another type of wireless communications device, and network entity 1102 may be another type of network entity or network node, such as those described herein. Note that any operations illustrated with dashed lines indicate that that operation may be optional.
[0133] At 1106, the UE 1104 obtains, from the network entity 1102, multiple CG configurations that configure periodic uplink resource allocations without dynamic grants, for example, according to a Type 1 CG scheme or a Type 2 CG scheme. As an example, the multiple CG configurations may be configured as described herein with respect to FIG. 6. In certain aspects, the CG configurations are configured to satisfy the various traffic streams of a multi-modal service, such as an XR session. For a Type 1 CG scheme, the periodic resource allocation is configured and activated for communications via Layer-2 signaling (e.g., radio resource control (RRC) signaling) . For a Type 2 CG scheme, the periodic resource allocation is configured via Layer-2 signaling and Layer-1 signaling and activated via Layer-1 signaling. As an example, the Layer-2 signaling configures the UE 1104 with a periodicity and a radio network temporary identifier (RNTI) , and then the Layer-1 signaling (scrambled with the RNTI) configures the periodic resource allocation and activates the Type 2 CG configuration as further described herein. Multiple CG configurations may be configured in bandwidth part (BWP) of a serving cell.
[0134] Optionally, at 1108, the UE 1104 obtains, from the network entity 1102, an indication activating one or more of the CG configurations for communications, for example, according to a Type 2 CG scheme. For example, the UE 1104 may obtain the indication via Layer-1 signaling (e.g., downlink control information) , which includes the resource allocation of the Type 2 CG configuration. The resource allocation may repeat according to the defined transmission period (periodicity) assigned to the particular CG configuration.
[0135] At 1110, the UE 1104 identifies that a transmission occasion of a particular CG configuration will be unused for sending certain traffic, for example, as described herein with respect to FIGS. 8-10. As an example with respect to FIG. 8, the UE identifies that the second transmission occasion 822 will be unused for sending any of the second traffic associated with the second CG configuration 820.
[0136] Optionally, at 1112, the UE 1104 sends, to the network entity 1102, an indication that the UE 1104 will be self-recycling the unused transmission occasion, for example, as described herein with respect to FIGS. 8-10. As an example, the UE 1104 may send the indication in one or more REs of PUSCH transmission occasions assigned to a CG configuration, where the indication may include the CG configuration index corresponding to the transmission occasion being recycled
[0137] Optionally, at 1114, the UE 1104 obtains, from the network entity 1102, a response to the indication. The response may indicate one or more parameters for the self-recycling transmission (s) . For example, the response may indicate to send a repetition and / or segment the payload. The response may indicate one or more transmission parameters for the transmission occasions involved in the self-recycling, such as the first transmission occasion 812 and the second transmission occasion 822 of FIG. 8. The transmission parameters may include the MCS and / or the code rate, for example.
[0138] At 1116, the UE 1104 sends, to the network entity 1102, a payload in the unused transmission occasion, for example, as described herein with respect to FIGS. 8-10.As an example, the UE 1104 sends a payload in the first transmission occasion 812 and a repetition of the payload in the second transmission occasion 822.
[0139] Accordingly, the self-recycling schemes for unused transmission occasions of CG configurations enable improved wireless communication performance, such as improved reliability, reduced latency, and / or reduced signaling overhead, as discussed above.
[0140] Example Operations of Wireless Communications
[0141] FIG. 12 shows a method 1200 for wireless communications by an apparatus, such as UE 104 of FIGS. 1 and 3.
[0142] Method 1200 begins at block 1205 with obtaining an indication that a first CG configuration (e.g., the first CG configuration 810, 910, 1010 of FIGS. 8-10) and one or more second CG configurations (e.g., the second CG configuration 820, 920, 1020 of FIGS. 8-10) are activated for communications, for example, as described herein with respect to FIG. 11.
[0143] Method 1200 then proceeds to block 1210 with sending a first payload in a first transmission occasion (e.g., the first transmission occasion 812, 912, 1012 of FIGS. 8-10) of the first CG configuration.
[0144] Method 1200 then proceeds to block 1215 with sending a second payload in a second transmission occasion (e.g., the second transmission occasion 822, 922, 1022 of FIGS. 8-10) of the one or more second CG configurations, wherein the second payload is a repetition of the first payload. In certain aspects, the second payload may include a redundant transmission of the first payload having the same, more, or less redundancy information than the first payload.
[0145] In certain aspects, method 1200 further includes communicating first traffic via at least one or more first resources of the first CG configuration. In certain aspects, method 1200 further includes communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload. In certain aspects, block 1215 includes sending the second payload in the second transmission occasion in response to an indication that the second transmission occasion will be unused for communication of any of the second traffic.
[0146] In certain aspects, the first transmission occasion overlaps in time with the second transmission occasion, for example, as described herein with respect to FIG. 8.
[0147] In certain aspects, the first transmission occasion is offset in time from the second transmission occasion, for example, as described herein with respect to FIGS. 9 and 10.
[0148] In certain aspects, the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first payload is obtained. In certain aspects, the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first transmission occasion occurs. In certain aspects, the first transmission occasion is a next available transmission occasion of the first CG configuration from when the second transmission occasion occurs.
[0149] In certain aspects, method 1200 further includes sending an indication, via Layer-2 signaling (e.g., a MAC-CE) , that the second transmission occasion is to be used for communication of the repetition of the first payload. In certain aspects, sending the indication that the second transmission occasion is to be used for communication of the repetition of the first payload comprises sending the indication in a third transmission occasion (e.g., the resources 814, 824 of FIG. 8) of the first CG configuration or the one or more second CG configurations, the third transmission occasion occurring earlier in time than the first transmission occasion.
[0150] In certain aspects, sending the indication that the first transmission occasion is to be used for communication of the repetition of the first payload comprises sending the indication in one or more resources (e.g., one or more resource elements) of the first CG configuration or the one or more second CG configurations. In certain aspects, method 1200 further includes obtaining an indication that the one or more resources are not to be rate matched and / or punctured, such as a priority associated with the resource elements.
[0151] In certain aspects, the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service. In certain aspects, the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service. In certain aspects, the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0152] In certain aspects, method 1200, or any aspect related to it, may be performed by an apparatus, such as communications device 1600 of FIG. 16, which includes various components operable, configured, or adapted to perform the method 1200. Communications device 1600 is described below in further detail.
[0153] Note that FIG. 12 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0154] FIG. 13 shows a method 1300 for wireless communications by an apparatus, such as BS 102 of FIGS. 1 and 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0155] Method 1300 begins at block 1305 with sending an indication that a first CG configuration (e.g., the first CG configuration 810, 910, 1010 of FIGS. 8-10) and one or more second CG configurations (e.g., the second CG configuration 820, 920, 1020 of FIGS. 8-10) are activated for communications, for example, as described herein with respect to FIG. 11.
[0156] Method 1300 then proceeds to block 1310 with obtaining a first payload in a first transmission occasion (e.g., the first transmission occasion 812, 912, 1012 of FIGS. 8-10) of the first CG configuration.
[0157] Method 1300 then proceeds to block 1315 with obtaining a second payload in a second transmission occasion (e.g., the second transmission occasion 822, 922, 1022 of FIGS. 8-10) of the one or more second CG configurations, wherein the second payload is a repetition of the first payload. In certain aspects, the second payload may include a redundant transmission of the first payload having the same, more, or less redundancy information than the first payload.
[0158] In certain aspects, method 1300 further includes communicating first traffic via at least one or more first resources of the first CG configuration. In certain aspects, method 1300 further includes communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.
[0159] In certain aspects, the first transmission occasion overlaps in time with the second transmission occasion, for example, as described herein with respect to FIG. 8.
[0160] In certain aspects, the first transmission occasion is offset in time from the second transmission occasion, for example, as described herein with respect to FIGS. 9 and 10.
[0161] In certain aspects, the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first transmission occasion occurs. In certain aspects, the first transmission occasion is a next available transmission occasion of the first CG configuration from when the second transmission occasion occurs.
[0162] In certain aspects, method 1300 further includes obtaining an indication, via Layer-2 signaling (e.g., a MAC-CE) , that the second transmission occasion is to be used for communication of the repetition of the first payload. In certain aspects, obtaining the indication that the second transmission occasion is to be used for communication of the repetition of the first payload comprises obtaining the indication in a third transmission occasion (e.g., the resources 814, 824 of FIG. 8) of the first CG configuration or the one or more second CG configurations, the third transmission occasion occurring earlier than the first transmission occasion.
[0163] In certain aspects, obtaining the indication that the first transmission occasion is to be used for communicating the repetition of the first payload comprises obtaining the indication in one or more resources (e.g., one or more resource elements) of the first CG configuration or the one or more second CG configurations. In certain aspects, method 1300 further includes sending an indication that the one or more resources are not to be rate matched and / or punctured.
[0164] In certain aspects, the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service. In certain aspects, the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service. In certain aspects, the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0165] In certain aspects, method 1300, or any aspect related to it, may be performed by an apparatus, such as communications device 1700 of FIG. 17, which includes various components operable, configured, or adapted to perform the method 1300. Communications device 1700 is described below in further detail.
[0166] Note that FIG. 13 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0167] FIG. 14 shows a method 1400 for wireless communications by an apparatus, such as UE 104 of FIGS. 1 and 3.
[0168] Method 1400 begins at block 1405 with obtaining an indication that a first CG configuration (e.g., the first CG configuration 910, 1010 of FIGS. 9 and 10) and one or more second CG configurations (e.g., the second CG configuration 920, 1020 of FIGS. 9 and 10) are activated for communications, for example, as described herein with respect to FIG. 11.
[0169] Method 1400 then proceeds to block 1410 with sending a first payload in a first transmission occasion (e.g., the first transmission occasion 912, 1012 of FIGS. 9 and 10) of the first CG configuration.
[0170] Method 1400 then proceeds to block 1415 with sending a second payload in a second transmission occasion (e.g., the second transmission occasion 922, 1022 of FIGS. 9 and 10) of the one or more second CG configurations, wherein payload data is distributed among at least the first payload and the second payload, for example, as described herein with respect to FIGS. 9 and 10.
[0171] In certain aspects, method 1400 further includes communicating first traffic via at least one or more first resources of the first CG configuration. In certain aspects, method 1400 further includes communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload. In certain aspects, block 1415 includes sending the second payload in the second transmission occasion in response to an indication that the second transmission occasion will be unused for communicating any of the second traffic.
[0172] In certain aspects, the first transmission occasion is offset in time from the second transmission occasion.
[0173] In certain aspects, method 1400 further includes segmenting the payload data into at least a first portion and a second portion, wherein the first payload comprises the first portion, the second payload comprises the second portion, and a beginning of the first transmission occasion occurs earlier than a beginning of the second transmission occasion.
[0174] In certain aspects, method 1400 further includes segmenting the payload data into at least a first portion and a second portion, wherein the first payload comprises the first portion, the second payload comprises the second portion, and a beginning of the second transmission occasion occurs earlier than a beginning of the first transmission occasion.
[0175] In certain aspects, method 1400 further includes sending an indication that the first transmission occasion and the second transmission occasion are to be used for communication of the payload data.
[0176] In certain aspects, method 1400 further includes obtaining an indication of one or more MCSs to use for transmission of one or more of: the first payload or the second payload.
[0177] In certain aspects, block 1410 includes sending the first payload with a first reduced MCS; block 1415 includes sending the second payload with a second reduced MCS; and method 1400 further includes sending an indication of the first reduced MCS and the reduced second MCS used for the first payload and the second payload, respectively.
[0178] In certain aspects, the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service. In certain aspects, the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service. In certain aspects, the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0179] In certain aspects, method 1400, or any aspect related to it, may be performed by an apparatus, such as communications device 1600 of FIG. 16, which includes various components operable, configured, or adapted to perform the method 1400. Communications device 1600 is described below in further detail.
[0180] Note that FIG. 14 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0181] FIG. 15 shows a method 1500 for wireless communications by an apparatus, such as BS 102 of FIGS. 1 and 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0182] Method 1500 begins at block 1505 with sending an indication that a first CG configuration (e.g., the first CG configuration 910, 1010 of FIGS. 9 and 10) and one or more second CG configurations (e.g., the second CG configuration 920, 1020 of FIGS. 9 and 10) are activated for communications, for example, as described herein with respect to FIG. 11.
[0183] Method 1500 then proceeds to block 1510 with obtaining a first payload in a first transmission occasion (e.g., the first transmission occasion 912, 1012 of FIGS. 9 and 10) of the first CG configuration.
[0184] Method 1500 then proceeds to block 1515 with obtaining a second payload in a second transmission occasion (e.g., the second transmission occasion 922, 1022 of FIGS. 9 and 10) of the one or more second CG configurations, wherein payload data is distributed among at least the first payload and the second payload.
[0185] In certain aspects, method 1500 further includes communicating first traffic via at least one or more first resources of the first CG configuration. In certain aspects, method 1500 further includes communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload. In certain aspects, the first transmission occasion is offset in time from the second transmission occasion.
[0186] In certain aspects, the payload data is segmented into at least a first portion and a second portion, wherein the first payload comprises the first portion, and the second payload comprises the second portion.
[0187] In certain aspects, method 1500 further includes obtaining an indication that the first transmission occasion and the second transmission occasion are to be used for communication of the payload data.
[0188] In certain aspects, method 1500 further includes sending an indication of one or more MCSs to use for transmission of one or more of: the first payload or the second payload.
[0189] In certain aspects, block 1510 includes obtaining the first payload with a first reduced MCS, block 1515 includes obtaining the second payload with a second reduced MCS, and method 1500 further includes obtaining an indication of the first reduced MCS and the reduced second MCS used for the first payload and the second payload, respectively.
[0190] In certain aspects, the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service. In certain aspects, the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service. In certain aspects, the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0191] In certain aspects, method 1500, or any aspect related to it, may be performed by an apparatus, such as communications device 1700 of FIG. 17, which includes various components operable, configured, or adapted to perform the method 1500. Communications device 1700 is described below in further detail.
[0192] Note that FIG. 15 is just one example of a method, and other methods including fewer, additional, or alternative operations are possible consistent with this disclosure.
[0193] Example Communications Devices
[0194] FIG. 16 depicts aspects of an example communications device 1600. In some aspects, communications device 1600 is a user equipment, such as UE 104 described above with respect to FIGS. 1 and 3.
[0195] The communications device 1600 includes a processing system 1605 coupled to a transceiver 1665 (e.g., a transmitter and / or a receiver) . The transceiver 1665 is configured to transmit and receive signals for the communications device 1600 via an antenna 1670, such as the various signals as described herein. The processing system 1605 may be configured to perform processing functions for the communications device 1600, including processing signals received and / or to be transmitted by the communications device 1600.
[0196] The processing system 1605 includes one or more processors 1610. In various aspects, the one or more processors 1610 may be representative of one or more of receive processor 358, transmit processor 364, TX MIMO processor 366, and / or controller / processor 380, as described with respect to FIG. 3. The one or more processors 1610 are coupled to a computer-readable medium / memory 1635 via a bus 1660. In certain aspects, the computer-readable medium / memory 1635 is configured to store instructions (e.g., computer-executable code) that when executed by the one or more processors 1610, enable and cause the one or more processors 1610 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it, including any additional operations described in relation to FIG. 12; and the method 1400 described with respect to FIG. 14, or any aspect related to it, including any additional operations described in relation to FIG. 14. Note that reference to a processor performing a function of communications device 1600 may include one or more processors performing that function of communications device 1600, such as in a distributed fashion.
[0197] In the depicted example, computer-readable medium / memory 1635 stores code for obtaining 1640, code for sending 1645, code for communicating 1650, and code for segmenting 1655. Processing of the code 1640-1655 may enable and cause the communications device 1600 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it; and the method 1400 described with respect to FIG. 14, or any aspect related to it.
[0198] The one or more processors 1610 include circuitry configured to implement (e.g., execute) the code stored in the computer-readable medium / memory 1635, including circuitry for obtaining 1615, circuitry for sending 1620, circuitry for communicating 1625, and circuitry for segmenting 1630. Processing with circuitry 1615-1630 may enable and cause the communications device 1600 to perform the method 1200 described with respect to FIG. 12, or any aspect related to it; and the method 1400 described with respect to FIG. 14, or any aspect related to it.
[0199] More generally, means for communicating, transmitting, sending or outputting for transmission may include the transceivers 354, antenna (s) 352, transmit processor 364, TX MIMO processor 366, and / or controller / processor 380 of the UE 104 illustrated in FIG. 3, transceiver 1665 and / or antenna 1670 of the communications device 1600 in FIG. 16, and / or one or more processors 1610 of the communications device 1600 in FIG. 16. Means for communicating, receiving or obtaining may include the transceivers 354, antenna (s) 352, receive processor 358, and / or controller / processor 380 of the UE 104 illustrated in FIG. 3, transceiver 1665 and / or antenna 1670 of the communications device 1600 in FIG. 16, and / or one or more processors 1610 of the communications device 1600 in FIG. 16. Means for segmenting may include the controller / processor 380 of the UE 104 illustrated in FIG. 3, and / or one or more processors 1610 of the communications device 1600 in FIG. 16.
[0200] FIG. 17 depicts aspects of an example communications device 1700. In some aspects, communications device 1700 is a network entity, such as BS 102 of FIGS. 1 and 3, or a disaggregated base station as discussed with respect to FIG. 2.
[0201] The communications device 1700 includes a processing system 1705 coupled to a transceiver 1755 (e.g., a transmitter and / or a receiver) and / or a network interface 1765. The transceiver 1755 is configured to transmit and receive signals for the communications device 1700 via an antenna 1760, such as the various signals as described herein. The network interface 1765 is configured to obtain and send signals for the communications device 1700 via communications link (s) , such as a backhaul link, midhaul link, and / or fronthaul link as described herein, such as with respect to FIG. 2. The processing system 1705 may be configured to perform processing functions for the communications device 1700, including processing signals received and / or to be transmitted by the communications device 1700.
[0202] The processing system 1705 includes one or more processors 1710. In various aspects, one or more processors 1710 may be representative of one or more of receive processor 338, transmit processor 320, TX MIMO processor 330, and / or controller / processor 340, as described with respect to FIG. 3. The one or more processors 1710 are coupled to a computer-readable medium / memory 1730 via a bus 1750. In certain aspects, the computer-readable medium / memory 1730 is configured to store instructions (e.g., computer-executable code) that when executed by the one or more processors 1710, enable and cause the one or more processors 1710 to perform the method 1300 described with respect to FIG. 13, or any aspect related to it, including any additional operations described in relation to FIG. 13; and the method 1500 described with respect to FIG. 15, or any aspect related to it, including any additional operations described in relation to FIG. 15. Note that reference to a processor of communications device 1700 performing a function may include one or more processors of communications device 1700 performing that function, such as in a distributed fashion.
[0203] In the depicted example, the computer-readable medium / memory 1730 stores code for sending 1735, code for obtaining 1740, and code for communicating 1745. Processing of the code 1735-1745 may enable and cause the communications device 1700 to perform the method 1300 described with respect to FIG. 13, or any aspect related to it; and the method 1500 described with respect to FIG. 15, or any aspect related to it.
[0204] The one or more processors 1710 include circuitry configured to implement (e.g., execute) the code stored in the computer-readable medium / memory 1730, including circuitry for sending 1715, circuitry for obtaining 1720, and circuitry for communicating 1725. Processing with circuitry 1715-1725 may enable and cause the communications device 1700 to perform the method 1300 described with respect to FIG. 13, or any aspect related to it; and the method 1500 described with respect to FIG. 15, or any aspect related to it.
[0205] More generally, means for communicating, transmitting, sending or outputting for transmission may include the transceivers 332, antenna (s) 334, transmit processor 320, TX MIMO processor 330, and / or controller / processor 340 of the BS 102 illustrated in FIG. 3, transceiver 1755 and / or antenna 1760 of the communications device 1700 in FIG. 17, and / or one or more processors 1710 of the communications device 1700 in FIG. 17. Means for communicating, receiving or obtaining may include the transceivers 332, antenna (s) 334, receive processor 338, and / or controller / processor 340 of the BS 102 illustrated in FIG. 3, transceiver 1755 and / or antenna 1760 of the communications device 1700 in FIG. 17, and / or one or more processors 1710 of the communications device 1700 in FIG. 17.
[0206] Example Clauses
[0207] Implementation examples are described in the following numbered clauses:
[0208] Clause 1: A method for wireless communications by an apparatus comprising: obtaining an indication that a first CG configuration and one or more second CG configurations are activated for communications; sending a first payload in a first transmission occasion of the first CG configuration; and sending a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.
[0209] Clause 2: The method of Clause 1, further comprising: communicating first traffic via at least one or more first resources of the first CG configuration; and communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.
[0210] Clause 3: The method of Clause 2, wherein sending the second payload comprises sending the second payload in the second transmission occasion in response to an indication that the second transmission occasion will be unused for communication of any of the second traffic.
[0211] Clause 4: The method of any one of Clauses 1-3, wherein the first transmission occasion overlaps in time with the second transmission occasion.
[0212] Clause 5: The method of any one of Clauses 1-4, wherein the first transmission occasion is offset in time from the second transmission occasion.
[0213] Clause 6: The method of Clause 5, wherein the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first payload is obtained.
[0214] Clause 7: The method of Clause 5, wherein the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first transmission occasion occurs.
[0215] Clause 8: The method of Clause 5, wherein the first transmission occasion is a next available transmission occasion of the first CG configuration from when the second transmission occasion occurs.
[0216] Clause 9: The method of any one of Clauses 1-8, further comprising: and sending an indication, via Layer-2 signaling, that the second transmission occasion is to be used for communication of the repetition of the first payload.
[0217] Clause 10: The method of Clause 9, wherein sending the indication that the second transmission occasion is to be used for communication of the repetition of the first payload comprises sending the indication in a third transmission occasion of the first CG configuration or the one or more second CG configurations, the third transmission occasion occurring earlier than the first transmission occasion.
[0218] Clause 11: The method of Clause 9, wherein sending the indication that the first transmission occasion is to be used for communication of the repetition of the first payload comprises sending the indication in one or more resources of the first CG configuration or the one or more second CG configurations.
[0219] Clause 12: The method of Clause 11, further comprising: and obtaining an indication that the one or more resources are not to be rate matched or punctured.
[0220] Clause 13: The method of Clause 2, wherein the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service.
[0221] Clause 14: The method of Clause 13, wherein the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service.
[0222] Clause 15: The method of Clause 13, wherein: the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0223] Clause 16: A method for wireless communications by an apparatus comprising: sending an indication that a first CG configuration and one or more second CG configurations are activated for communications; obtaining a first payload in a first transmission occasion of the first CG configuration; and obtaining a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.
[0224] Clause 17: The method of Clause 16, further comprising: communicating first traffic via at least one or more first resources of the first CG configuration; and communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.
[0225] Clause 18: The method of any one of Clauses 16-17, wherein the first transmission occasion overlaps in time with the second transmission occasion.
[0226] Clause 19: The method of any one of Clauses 16-18, wherein the first transmission occasion is offset in time from the second transmission occasion.
[0227] Clause 20: The method of Clause 19, wherein the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first transmission occasion occurs.
[0228] Clause 21: The method of Clause 19, wherein the first transmission occasion is a next available transmission occasion of the first CG configuration from when the second transmission occasion occurs.
[0229] Clause 22: The method of any one of Clauses 16-21, further comprising: and obtaining an indication, via Layer-2 signaling, that the second transmission occasion is to be used for communication of the repetition of the first payload.
[0230] Clause 23: The method of Clause 22, wherein obtaining the indication that the second transmission occasion is to be used for communication of the repetition of the first payload comprises obtaining the indication in a third transmission occasion of the first CG configuration or the one or more second CG configurations, the third transmission occasion occurring earlier than the first transmission occasion.
[0231] Clause 24: The method of Clause 22, wherein obtaining the indication that the first transmission occasion is to be used for communicating the repetition of the first payload comprises obtaining the indication in one or more resources of the first CG configuration or the one or more second CG configurations.
[0232] Clause 25: The method of Clause 24, further comprising: and sending an indication that the one or more resources are not to be rate matched or punctured.
[0233] Clause 26: The method of Clause 17, wherein the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service.
[0234] Clause 27: The method of Clause 26, wherein the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service.
[0235] Clause 28: The method of Clause 26, wherein: the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0236] Clause 29: A method for wireless communications by an apparatus comprising: obtaining an indication that a first CG configuration and one or more second CG configurations are activated for communications; sending a first payload in a first transmission occasion of the first CG configuration; and sending a second payload in a second transmission occasion of the one or more second CG configurations, wherein payload data is distributed among at least the first payload and the second payload.
[0237] Clause 30: The method of Clause 29, further comprising: communicating first traffic via at least one or more first resources of the first CG configuration; and communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.
[0238] Clause 31: The method of Clause 30, wherein sending the second payload comprises sending the second payload in the second transmission occasion in response to an indication that the second transmission occasion will be unused for communicating any of the second traffic.
[0239] Clause 32: The method of any one of Clauses 29-31, wherein the first transmission occasion is offset in time from the second transmission occasion.
[0240] Clause 33: The method of any one of Clauses 29-32, further comprising: and segmenting the payload data into at least a first portion and a second portion, wherein the first payload comprises the first portion, the second payload comprises the second portion, and a beginning of the first transmission occasion occurs earlier than a beginning of the second transmission occasion.
[0241] Clause 34: The method of any one of Clauses 29-33, further comprising: and segmenting the payload data into at least a first portion and a second portion, wherein the first payload comprises the first portion, the second payload comprises the second portion, and a beginning of the second transmission occasion occurs earlier than a beginning of the first transmission occasion.
[0242] Clause 35: The method of any one of Clauses 29-34, further comprising: sending an indication that the first transmission occasion and the second transmission occasion are to be used for communication of the payload data; and obtaining an indication of one or more MCSs to use for transmission of one or more of: the first payload or the second payload.
[0243] Clause 36: The method of any one of Clauses 29-35, wherein: sending the first payload comprises sending the first payload with a first reduced MCS, sending the second payload comprises sending the second payload with a second reduced MCS, and sending an indication of the first reduced MCS and the reduced second MCS used for the first payload and the second payload, respectively.
[0244] Clause 37: The method of Clause 30, wherein the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service.
[0245] Clause 38: The method of Clause 37, wherein the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service.
[0246] Clause 39: The method of Clause 37, wherein: the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0247] Clause 40: A method for wireless communications by an apparatus comprising: sending an indication that a first CG configuration and one or more second CG configurations are activated for communications; obtaining a first payload in a first transmission occasion of the first CG configuration; and obtaining a second payload in a second transmission occasion of the one or more second CG configurations, wherein payload data is distributed among at least the first payload and the second payload.
[0248] Clause 41: The method of Clause 40, further comprising: communicating first traffic via at least one or more first resources of the first CG configuration; and communicating second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.
[0249] Clause 42: The method of any one of Clauses 40-41, wherein the first transmission occasion is offset in time from the second transmission occasion.
[0250] Clause 43: The method of any one of Clauses 40-42, wherein the payload data is segmented into at least a first portion and a second portion, wherein the first payload comprises the first portion, and the second payload comprises the second portion.
[0251] Clause 44: The method of any one of Clauses 40-43, further comprising: obtaining an indication that the first transmission occasion and the second transmission occasion are to be used for communication of the payload data; and sending an indication of one or more MCSs to use for transmission of one or more of: the first payload or the second payload.
[0252] Clause 45: The method of any one of Clauses 40-44, wherein: obtaining the first payload comprises obtaining the first payload with a first reduced MCS, obtaining the second payload comprises obtaining the second payload with a second reduced MCS, and obtaining an indication of the first reduced MCS and the reduced second MCS used for the first payload and the second payload, respectively.
[0253] Clause 46: The method of Clause 45, wherein the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service.
[0254] Clause 47: The method of Clause 46, wherein the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service.
[0255] Clause 48: The method of Clause 46, wherein: the multi-modal service comprises the first traffic and the second traffic; the first CG configuration is configured to communicate the first traffic; and the at least one of the second one or more CG configurations is configured to communicate the second traffic.
[0256] Clause 49: One or more apparatuses, comprising: one or more memories comprising executable instructions; and one or more processors configured to execute the executable instructions and cause the one or more apparatuses to perform a method in accordance with any one of clauses 1-48.
[0257] Clause 50: One or more apparatuses, comprising means for performing a method in accordance with any one of clauses 1-48.
[0258] Clause 51: One or more non-transitory computer-readable media comprising executable instructions that, when executed by one or more processors of one or more apparatuses, cause the one or more apparatuses to perform a method in accordance with any one of clauses 1-48.
[0259] Clause 52: One or more computer program products embodied on one or more computer-readable storage media comprising code for performing a method in accordance with any one of clauses 1-48.
[0260] Additional Considerations
[0261] The preceding description is provided to enable any person skilled in the art to practice the various aspects described herein. The examples discussed herein are not limiting of the scope, applicability, or aspects set forth in the claims. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. For example, changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For instance, the methods described may be performed in an order different from that described, and various actions may be added, omitted, or combined. Also, features described with respect to some examples may be combined in some other examples. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method that is practiced using other structure, functionality, or structure and functionality in addition to, or other than, the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0262] The various illustrative logical blocks, modules and circuits described in connection with the present disclosure may be implemented or performed with a general purpose processor, an AI processor, a digital signal processor (DSP) , an ASIC, a field programmable gate array (FPGA) or other programmable logic device (PLD) , discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, a system on a chip (SoC) , or any other such configuration.
[0263] As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of:a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
[0264] As used herein, the term “determining” encompasses a wide variety of actions. For example, “determining” may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure) , ascertaining and the like. Also, “determining” may include receiving (e.g., receiving information) , accessing (e.g., accessing data in a memory) and the like. Also, “determining” may include resolving, selecting, choosing, establishing and the like.
[0265] As used herein, “coupled to” and “coupled with” generally encompass direct coupling and indirect coupling (e.g., including intermediary coupled aspects) unless stated otherwise. For example, stating that a processor is coupled to a memory allows for a direct coupling or a coupling via an intermediary aspect, such as a bus.
[0266] The methods disclosed herein comprise one or more actions for achieving the methods. The method actions may be interchanged with one another without departing from the scope of the claims. In other words, unless a specific order of actions is specified, the order and / or use of specific actions may be modified without departing from the scope of the claims. Further, the various operations of methods described above may be performed by any suitable means capable of performing the corresponding functions. The means may include various hardware and / or software component (s) and / or module (s) , including, but not limited to a circuit, an application specific integrated circuit (ASIC) , or processor.
[0267] The following claims are not intended to be limited to the aspects shown herein, but are to be accorded the full scope consistent with the language of the claims. Reference to an element in the singular is not intended to mean only one unless specifically so stated, but rather “one or more. ” The subsequent use of a definite article (e.g., “the” or “said” ) with an element (e.g., “the processor” ) is not intended to invoke a singular meaning (e.g., “only one” ) on the element unless otherwise specifically stated. For example, reference to an element (e.g., “aprocessor, ” “acontroller, ” “amemory, ” “atransceiver, ” “an antenna, ” “the processor, ” “the controller, ” “the memory, ” “the transceiver, ” “the antenna, ” etc. ) , unless otherwise specifically stated, should be understood to refer to one or more elements (e.g., “one or more processors, ” “one or more controllers, ” “one or more memories, ” “one more transceivers, ” etc. ) . The terms “set” and “group” are intended to include one or more elements, and may be used interchangeably with “one or more. ” Where reference is made to one or more elements performing functions (e.g., steps of a method) , one element may perform all functions, or more than one element may collectively perform the functions. When more than one element collectively performs the functions, each function need not be performed by each of those elements (e.g., different functions may be performed by different elements) and / or each function need not be performed in whole by only one element (e.g., different elements may perform different sub-functions of a function) . Similarly, where reference is made to one or more elements configured to cause another element (e.g., an apparatus) to perform functions, one element may be configured to cause the other element to perform all functions, or more than one element may collectively be configured to cause the other element to perform the functions. Unless specifically stated otherwise, the term “some” refers to one or more. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims.
Claims
1.An apparatus configured for wireless communications, comprising:one or more memories; andone or more processors coupled to the one or more memories, the one or more processors being configured to cause the apparatus to:obtain an indication that a first configured grant (CG) configuration and one or more second CG configurations are activated for communications;send a first payload in a first transmission occasion of the first CG configuration; andsend a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.2.The apparatus of claim 1, wherein the one or more processors are configured to cause the apparatus to:communicate first traffic via at least one or more first resources of the first CG configuration; andcommunicate second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.3.The apparatus of claim 2, wherein to send the second payload, the one or more processors are configured to cause the apparatus to:send the second payload in the second transmission occasion in response to an indication that the second transmission occasion will be unused for communication of any of the second traffic.4.The apparatus of claim 1, wherein the first transmission occasion overlaps in time with the second transmission occasion.5.The apparatus of claim 1, wherein the first transmission occasion is offset in time from the second transmission occasion.6.The apparatus of claim 5, wherein the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first payload is obtained.7.The apparatus of claim 5, wherein the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first transmission occasion occurs.8.The apparatus of claim 5, wherein the first transmission occasion is a next available transmission occasion of the first CG configuration from when the second transmission occasion occurs.9.The apparatus of claim 1, wherein the one or more processors are configured to cause the apparatus to: send an indication, via Layer-2 signaling, that the second transmission occasion is to be used for communication of the repetition of the first payload.10.The apparatus of claim 9, wherein to send the indication that the second transmission occasion is to be used for communication of the repetition of the first payload, the one or more processors are configured to cause the apparatus to: send the indication in a third transmission occasion of the first CG configuration or the one or more second CG configurations, the third transmission occasion occurring earlier than the first transmission occasion.11.The apparatus of claim 9, wherein to send the indication that the first transmission occasion is to be used for communication of the repetition of the first payload, the one or more processors are configured to cause the apparatus to: send the indication in one or more resources of the first CG configuration or the one or more second CG configurations.12.The apparatus of claim 11, wherein the one or more processors are configured to cause the apparatus to obtain an indication that the one or more resources are not to be rate matched or punctured.13.The apparatus of claim 2, wherein the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service.14.The apparatus of claim 13, wherein the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service.15.The apparatus of claim 13, wherein:the multi-modal service comprises the first traffic and the second traffic;the first CG configuration is configured to communicate the first traffic; andthe at least one of the second one or more CG configurations is configured to communicate the second traffic.16.An apparatus configured for wireless communications, comprising:one or more memories; andone or more processors coupled to the one or more memories, the one or more processors being configured to cause the apparatus to:send an indication that a first configured grant (CG) configuration and one or more second CG configurations are activated for communications;obtain a first payload in a first transmission occasion of the first CG configuration; andobtain a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.17.The apparatus of claim 16, wherein the one or more processors are configured to cause the apparatus to:communicate first traffic via at least one or more first resources of the first CG configuration; andcommunicate second traffic via one or more second resources of the one or more second CG configurations, wherein the first traffic comprises the first payload and the second payload.18.The apparatus of claim 16, wherein the first transmission occasion overlaps in time with the second transmission occasion.19.The apparatus of claim 16, wherein the first transmission occasion is offset in time from the second transmission occasion.20.The apparatus of claim 19, wherein the second transmission occasion is a next available transmission occasion of the one or more second CG configurations from when the first transmission occasion occurs.21.The apparatus of claim 19, wherein the first transmission occasion is a next available transmission occasion of the first CG configuration from when the second transmission occasion occurs.22.The apparatus of claim 16, wherein the one or more processors are configured to cause the apparatus to: obtain an indication, via Layer-2 signaling, that the second transmission occasion is to be used for communication of the repetition of the first payload.23.The apparatus of claim 22, wherein to obtain the indication that the second transmission occasion is to be used for communication of the repetition of the first payload, the one or more processors are configured to cause the apparatus to: obtain the indication in a third transmission occasion of the first CG configuration or the one or more second CG configurations, the third transmission occasion occurring earlier than the first transmission occasion.24.The apparatus of claim 22, wherein to obtain the indication that the first transmission occasion is to be used for communicating the repetition of the first payload, the one or more processors are configured to cause the apparatus to: obtain the indication in one or more resources of the first CG configuration or the one or more second CG configurations.25.The apparatus of claim 24, wherein the one or more processors are configured to cause the apparatus to send an indication that the one or more resources are not to be rate matched or punctured.26.The apparatus of claim 17, wherein the first CG configuration and at least one of the second one or more CG configurations are associated with a multi-modal service.27.The apparatus of claim 26, wherein the multi-modal service comprises a virtual reality service, an augmented reality service, or a mixed reality service.28.The apparatus of claim 26, wherein:the multi-modal service comprises the first traffic and the second traffic;the first CG configuration is configured to communicate the first traffic; andthe at least one of the second one or more CG configurations is configured to communicate the second traffic.29.A method of wireless communications by an apparatus, comprising:obtaining an indication that a first configured grant (CG) configuration and one or more second CG configurations are activated for communications;sending a first payload in a first transmission occasion of the first CG configuration; andsending a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.30.A method of wireless communications by an apparatus, comprising:sending an indication that a first configured grant (CG) configuration and one or more second CG configurations are activated for communications;obtaining a first payload in a first transmission occasion of the first CG configuration; andobtaining a second payload in a second transmission occasion of the one or more second CG configurations, wherein the second payload is a repetition of the first payload.
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