WO2022041208A1 - Autorisation configurée de liaison montante adaptative basée sur une fonction de hachage aléatoire - Google Patents

Autorisation configurée de liaison montante adaptative basée sur une fonction de hachage aléatoire Download PDF

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Publication number
WO2022041208A1
WO2022041208A1 PCT/CN2020/112521 CN2020112521W WO2022041208A1 WO 2022041208 A1 WO2022041208 A1 WO 2022041208A1 CN 2020112521 W CN2020112521 W CN 2020112521W WO 2022041208 A1 WO2022041208 A1 WO 2022041208A1
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WIPO (PCT)
Prior art keywords
seed value
resources
pusch
ues
pool
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PCT/CN2020/112521
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English (en)
Inventor
Yisheng Xue
Jing Sun
Chih-Hao Liu
Ozcan Ozturk
Peter Gaal
Juan Montojo
Xiaoxia Zhang
Tao Luo
Changlong Xu
Rajat Prakash
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Qualcomm Incorporated
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Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2020/112521 priority Critical patent/WO2022041208A1/fr
Publication of WO2022041208A1 publication Critical patent/WO2022041208A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms and techniques for an adaptive uplink (UL) configured grant (CG) configuration based on a random hashing function.
  • UL uplink
  • CG configured grant
  • Wireless communications systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communications systems may employ multiple-access technologies capable of supporting communications with multiple users by sharing available system resources (e.g., bandwidth, transmit power) .
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • TD-SCDMA time division synchronous code division multiple access
  • a wireless multiple-access communications system may include a number of base stations, each simultaneously supporting communications for multiple communications devices, otherwise known as user equipment (UEs) .
  • UEs user equipment
  • a set of one or more base stations may define an eNodeB (eNB) .
  • eNB eNodeB
  • a wireless multiple access communications system may include a number of distributed units (DUs) (e.g., edge units (EUs) , edge nodes (ENs) , radio heads (RHs) , smart radio heads (SRHs) , transmission reception points (TRPs) , etc.
  • DUs distributed units
  • EUs edge units
  • ENs edge nodes
  • RHs radio heads
  • SSRHs smart radio heads
  • TRPs transmission reception points
  • CUs central units
  • CUs central units
  • CNs central nodes
  • ANCs access node controllers
  • a set of one or more distributed units, in communication with a central unit may define an access node (e.g., a new radio base station (NR BS) , a new radio node-B (NR NB) , a network node, 5G NB, gNB, gNodeB, etc. ) .
  • NR BS new radio base station
  • NR NB new radio node-B
  • network node 5G NB, gNB, gNodeB, etc.
  • a base station or DU may communicate with a set of UEs on downlink channels (e.g., for transmissions from a base station or to a UE) and uplink channels (e.g., for transmissions from a UE to a base station or distributed unit) .
  • downlink channels e.g., for transmissions from a base station or to a UE
  • uplink channels e.g., for transmissions from a UE to a base station or distributed unit
  • NR new radio
  • 3GPP Third Generation Partnership Project
  • aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms and techniques for an adaptive uplink (UL) configured grant (CG) configuration based on a random hashing function.
  • UL uplink
  • CG configured grant
  • Certain aspects of the present disclosure provide a method for wireless communications by a UE.
  • the method generally includes receiving multiple semi persistently scheduled (SPS) configurations, each SPS configuration allocating the UE with a set of periodic occasions for physical downlink shared channel (PDSCH) transmissions, monitoring SPS occasions of the SPS configurations, and transmitting one or more block acknowledgments (BAs) , each BA providing hybrid automatic repeat request (HARQ) feedback for multiple SPS occasions of one or more of the SPS configurations that occur within an acknowledgment window.
  • SPS semi persistently scheduled
  • PDSCH physical downlink shared channel
  • BAs block acknowledgments
  • HARQ hybrid automatic repeat request
  • Certain aspects of the present disclosure provide a method for wireless communications by a network entity.
  • the method generally includes sending a UE) an adaptive CG configuration, wherein the configuration indicates a pool of UL resources for CG transmissions, indicating, to the UE a seed value to use as input to a hashing function for selecting, from the pool of UL resources for sending a CG PUSCH in a CG occasions, and monitoring for the CG PUSCH in the CG occasion sent on UL resources selected by the UE based on the seed value and hashing function.
  • FIG. 1 is a block diagram conceptually illustrating an example telecommunications system, in accordance with certain aspects of the present disclosure.
  • FIG. 2 is a block diagram illustrating an example logical architecture of a distributed RAN, in accordance with certain aspects of the present disclosure.
  • FIG. 3 is a diagram illustrating an example physical architecture of a distributed RAN, in accordance with certain aspects of the present disclosure.
  • FIG. 4 is a block diagram conceptually illustrating a design of an example BS and UE, in accordance with certain aspects of the present disclosure.
  • FIG. 5 is a diagram showing examples for implementing a communication protocol stack, in accordance with certain aspects of the present disclosure.
  • FIG. 6 illustrates an example of a frame format for a new radio (NR) system.
  • NR new radio
  • FIG. 7 is a diagram illustrating example functionality of reduced capability (RedCap) user equipments (UEs) , in accordance with certain aspects of the present disclosure.
  • RedCap reduced capability
  • FIG. 8 is an example timeline depicting timing of transmissions according to a configured grant (CG) , in accordance with aspects of the present disclosure.
  • CG configured grant
  • FIG. 9 illustrates example operations that may be performed by a user equipment (UE) , in accordance with aspects of the present disclosure.
  • UE user equipment
  • FIG. 10 illustrates example operations that may be performed by a network entity, in accordance with aspects of the present disclosure.
  • FIG. 11 is a table of example seed values and UE identifier values used to indicate CG uplink (UL) resources, in accordance with aspects of the present disclosure.
  • FIG. 12 is a table of example pseudo-random index values used by different UEs as a seed value, in accordance with aspects of the present disclosure.
  • FIG. 13 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein in accordance with aspects of the present disclosure.
  • FIG. 14 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein in accordance with aspects of the present disclosure.
  • aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms and techniques for an adaptive uplink (UL) configured grant (CG) configuration based on a random hashing function.
  • UL uplink
  • CG configured grant
  • aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for new radio (NR) (new radio access technology or 5G technology) .
  • NR new radio access technology
  • 5G technology new radio access technology
  • NR may support various wireless communications services, such as Enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g. 80 MHz beyond) , millimeter wave (mmW) targeting high carrier frequency (e.g. 60 GHz) , massive MTC (mMTC) targeting non-backward compatible MTC techniques, and/or mission critical targeting ultra-reliable low latency communications (URLLC) .
  • eMBB Enhanced mobile broadband
  • mmW millimeter wave
  • mMTC massive MTC
  • URLLC ultra-reliable low latency communications
  • These services may include latency and reliability requirements.
  • These services may also have different transmission time intervals (TTI) to meet respective quality of service (QoS) requirements.
  • TTI transmission time intervals
  • QoS quality of service
  • these services may co-exist in the same subframe.
  • Hybrid beamforming may enhance link budget/signal to noise ratio (SNR) that may be exploited during the RACH.
  • the node B (NB) and the user equipment (UE) may communicate using beam-formed transmissions.
  • the NB may need to monitor beams using beam measurements performed (e.g., based on reference signals transmitted by the NB) and feedback generated at the UE.
  • the UE may need to evaluate several beams to obtain the best Rx beam for a given NB Tx beam. Accordingly, if the UE has to “sweep” through all of its Rx beams to perform the measurements (e.g., to determine the best Rx beam for a given NB Tx beam) , the UE may incur significant delay in measurement and battery life impact. Moreover, having to sweep through all Rx beams is highly resource inefficient.
  • aspects of the present disclosure provide techniques to assist a UE when performing measurements of serving and neighbor cells when using Rx beamforming.
  • a CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA) , cdma2000, etc.
  • UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
  • cdma2000 covers IS-2000, IS-95 and IS-856 standards.
  • a TDMA network may implement a radio technology such as Global System for Mobile Communications (GSM) .
  • An OFDMA network may implement a radio technology such as NR (e.g.
  • E-UTRA Evolved UTRA
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDMA
  • UMTS Universal Mobile Telecommunication System
  • NR is an emerging wireless communications technology under development in conjunction with the 5G Technology Forum (5GTF) .
  • 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are releases of UMTS that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP) .
  • cdma2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) .
  • the techniques described herein may be used for the wireless networks and radio technologies mentioned above as well as other wireless networks and radio technologies. For clarity, while aspects may be described herein using terminology commonly associated with 3G and/or 4G wireless technologies, aspects of the present disclosure can be applied in other generation-based communications systems, such as 5G and later, including NR technologies.
  • FIG. 1 illustrates an example wireless network 100 in which aspects of the present disclosure may be performed.
  • one or more UEs 120 of the wireless network 100 may be configured to perform operations 900 of FIG. 9 for block acknowledgment (BA) to communicate according to an adaptive uplink (UL) configured grant (CG) configuration based on a random hashing function.
  • a base station 110 of the wireless network 100 may be configured to perform operations 1000 of FIG. 10 to receive and provide an adaptive UL CG configuration to a UE 120 (performing operations 900 of FIG. 9) .
  • the wireless network 100 may include a number of BSs 110 and other network entities.
  • the network entities including the BS and UEs may communicate on high frequencies (e.g., > 6 GHz) using beams.
  • a BS may be a station that communicates with UEs. Each BS 110 may provide communications coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a Node B and/or a Node B subsystem serving this coverage area, depending on the context in which the term is used.
  • the term “cell” and gNB, Node B, 5G NB, AP, NR BS, NR BS, or TRP may be interchangeable.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile base station.
  • the base stations may be interconnected to one another and/or to one or more other base stations or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, or the like using any suitable transport network.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular radio access technology (RAT) and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, etc.
  • a frequency may also be referred to as a carrier, a frequency channel, etc.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • a BS may provide communications coverage for a macro cell, a pico cell, a femto cell, and/or other types of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG) , UEs for users in the home, etc. ) .
  • CSG Closed Subscriber Group
  • a BS for a macro cell may be referred to as a macro BS.
  • a BS for a pico cell may be referred to as a pico BS.
  • a BS for a femto cell may be referred to as a femto BS or a home BS.
  • the BSs 110a, 110b and 110c may be macro BSs for the macro cells 102a, 102b and 102c, respectively.
  • the BS 110x may be a pico BS for a pico cell 102x.
  • the BSs 110y and 110z may be femto BS for the femto cells 102y and 102z, respectively.
  • a BS may support one or multiple (e.g., three) cells.
  • the wireless network 100 may also include relay stations.
  • a relay station is a station that receives a transmission of data and/or other information from an upstream station (e.g., a BS or a UE) and sends a transmission of the data and/or other information to a downstream station (e.g., a UE or a BS) .
  • a relay station may also be a UE that relays transmissions for other UEs.
  • a relay station 110r may communicate with the BS 110a and a UE 120r to facilitate communications between the BS 110a and the UE 120r.
  • a relay station may also be referred to as a relay BS, a relay, etc.
  • the wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BS, pico BS, femto BS, relays, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different impact on interference in the wireless network 100.
  • macro BS may have a high transmit power level (e.g., 20 Watts) whereas pico BS, femto BS, and relays may have a lower transmit power level (e.g., 1 Watt) .
  • the wireless network 100 may support synchronous or asynchronous operation.
  • the BSs may have similar frame timing, and transmissions from different BSs may be approximately aligned in time.
  • the BSs may have different frame timing, and transmissions from different BSs may not be aligned in time.
  • the techniques described herein may be used for both synchronous and asynchronous operation.
  • a network controller 130 may couple to a set of BSs and provide coordination and control for these BSs.
  • the network controller 130 may communicate with the BSs 110 via a backhaul.
  • the BSs 110 may also communicate with one another, e.g., directly or indirectly via wireless or wireline backhaul.
  • the UEs 120 may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, a Customer Premises Equipment (CPE) , a cellular phone, a smart phone, a personal digital assistant (PDA) , a wireless modem, a wireless communications device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or medical equipment, a biometric sensor/device, a wearable device such as a smart watch, smart clothing, smart glasses, a smart wrist band, smart jewelry (e.g., a smart ring, a smart bracelet, etc.
  • CPE Customer Premises Equipment
  • PDA personal digital assistant
  • WLL wireless local loop
  • MTC machine-type communication
  • eMTC evolved MTC
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that may communicate with a BS, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communications link.
  • a network e.g., a wide area network such as Internet or a cellular network
  • Some UEs may be considered Internet-of-Things (IoT) devices.
  • IoT Internet-of-Things
  • a solid line with double arrows indicates desired transmissions between a UE and a serving BS, which is a BS designated to serve the UE on the downlink and/or uplink.
  • a dashed line with double arrows indicates interfering transmissions between a UE and a BS.
  • Certain wireless networks utilize orthogonal frequency division multiplexing (OFDM) on the downlink and single-carrier frequency division multiplexing (SC-FDM) on the uplink.
  • OFDM and SC-FDM partition the system bandwidth into multiple (K) orthogonal subcarriers, which are also commonly referred to as tones, bins, etc.
  • K orthogonal subcarriers
  • Each subcarrier may be modulated with data.
  • modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM.
  • the spacing between adjacent subcarriers may be fixed, and the total number of subcarriers (K) may be dependent on the system bandwidth.
  • the spacing of the subcarriers may be 15 kHz and the minimum resource allocation (called a ‘resource block’ ) may be 12 subcarriers (or 180 kHz) . Consequently, the nominal FFT size may be equal to 128, 256, 512, 1024 or 2048 for system bandwidth of 1.25, 2.5, 5, 10 or 20 megahertz (MHz) , respectively.
  • the system bandwidth may also be partitioned into subbands. For example, a subband may cover 1.08 MHz (i.e., 6 resource blocks) , and there may be 1, 2, 4, 8 or 16 subbands for system bandwidth of 1.25, 2.5, 5, 10 or 20 MHz, respectively.
  • aspects of the examples described herein may be associated with LTE technologies, aspects of the present disclosure may be applicable with other wireless communications systems, such as NR.
  • NR may utilize OFDM with a CP on the uplink and downlink and include support for half-duplex operation using TDD.
  • a single component carrier bandwidth of 100 MHz may be supported.
  • NR resource blocks may span 12 sub-carriers with a sub-carrier bandwidth of 75 kHz over a 0.1 ms duration.
  • each radio frame may consist of 50 subframes with a length of 10 ms. Consequently, each subframe may have a length of 0.2 ms.
  • each radio frame may consist of 10 subframes with a length of 10 ms, where each subframe may have a length of 1 ms.
  • Each subframe may indicate a link direction (i.e., DL or UL) for data transmission and the link direction for each subframe may be dynamically switched.
  • Each subframe may include DL/UL data as well as DL/UL control data.
  • Beamforming may be supported and beam direction may be dynamically configured.
  • MIMO transmissions with precoding may also be supported.
  • MIMO configurations in the DL may support up to 8 transmit antennas with multi-layer DL transmissions up to 8 streams and up to 2 streams per UE. Multi-layer transmissions with up to 2 streams per UE may be supported. Aggregation of multiple cells may be supported with up to 8 serving cells.
  • NR may support a different air interface, other than an OFDM-based.
  • NR networks may include entities such CUs and/or DUs.
  • a scheduling entity e.g., a base station
  • the scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, subordinate entities utilize resources allocated by the scheduling entity.
  • Base stations are not the only entities that may function as a scheduling entity. That is, in some examples, a UE may function as a scheduling entity, scheduling resources for one or more subordinate entities (e.g., one or more other UEs) .
  • the UE is functioning as a scheduling entity, and other UEs utilize resources scheduled by the UE for wireless communications.
  • a UE may function as a scheduling entity in a peer-to-peer (P2P) network, and/or in a mesh network.
  • P2P peer-to-peer
  • UEs may optionally communicate directly with one another in addition to communicating with the scheduling entity.
  • a scheduling entity and one or more subordinate entities may communicate utilizing the scheduled resources.
  • a RAN may include a CU and DUs.
  • a NR BS e.g., gNB, 5G Node B, Node B, transmission reception point (TRP) , access point (AP)
  • NR cells can be configured as access cells (ACells) or data only cells (DCells) .
  • the RAN e.g., a central unit or distributed unit
  • DCells may be cells used for carrier aggregation or dual connectivity, but not used for initial access, cell selection/reselection, or handover. In some cases, DCells may not transmit synchronization signals –in some case cases DCells may transmit SS.
  • NR BSs may transmit downlink signals to UEs indicating the cell type. Based on the cell type indication, the UE may communicate with the NR BS. For example, the UE may determine NR BSs to consider for cell selection, access, handover, and/or measurement based on the indicated cell type.
  • FIG. 2 illustrates an example logical architecture of a distributed radio access network (RAN) 200, which may be implemented in the wireless communications system illustrated in FIG. 1.
  • a 5G access node 206 may include an access node controller (ANC) 202.
  • the ANC may be a central unit (CU) of the distributed RAN 200.
  • the backhaul interface to the next generation core network (NG-CN) 204 may terminate at the ANC.
  • the backhaul interface to neighboring next generation access nodes (NG ANs) may terminate at the ANC.
  • the ANC may include one or more TRPs 208 (which may also be referred to as BSs, NR BSs, Node Bs, 5G NBs, APs, or some other term) .
  • TRPs 208 which may also be referred to as BSs, NR BSs, Node Bs, 5G NBs, APs, or some other term.
  • TRP may be used interchangeably with “cell. ”
  • the TRPs 208 may be a DU.
  • the TRPs may be connected to one ANC (ANC 202) or more than one ANC (not illustrated) .
  • ANC ANC
  • RaaS radio as a service
  • a TRP may include one or more antenna ports.
  • the TRPs may be configured to individually (e.g., dynamic selection) or jointly (e.g., joint transmission) serve traffic to a UE.
  • the local architecture 200 may be used to illustrate fronthaul definition.
  • the architecture may be defined that support fronthauling solutions across different deployment types.
  • the architecture may be based on transmit network capabilities (e.g., bandwidth, latency, and/or jitter) .
  • the architecture may share features and/or components with LTE.
  • the next generation AN (NG-AN) 210 may support dual connectivity with NR.
  • the NG-AN may share a common fronthaul for LTE and NR.
  • the architecture may enable cooperation between and among TRPs 208. For example, cooperation may be preset within a TRP and/or across TRPs via the ANC 202. According to aspects, no inter-TRP interface may be needed/present.
  • a dynamic configuration of split logical functions may be present within the architecture 200.
  • the Radio Resource Control (RRC) layer, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, Medium Access Control (MAC) layer, and a Physical (PHY) layers may be adaptably placed at the DU or CU (e.g., TRP or ANC, respectively) .
  • a BS may include a central unit (CU) (e.g., ANC 202) and/or one or more distributed units (e.g., one or more TRPs 208) .
  • CU central unit
  • distributed units e.g., one or more TRPs 208 .
  • FIG. 3 illustrates an example physical architecture of a distributed RAN 300, according to aspects of the present disclosure.
  • a centralized core network unit (C-CU) 302 may host core network functions.
  • the C-CU may be centrally deployed.
  • C-CU functionality may be offloaded (e.g., to advanced wireless services (AWS) ) , to handle peak capacity.
  • AWS advanced wireless services
  • a centralized RAN unit (C-RU) 304 may host one or more ANC functions.
  • the C-RU may host core network functions locally.
  • the C-RU may have distributed deployment.
  • the C-RU may be closer to the network edge.
  • a DU 306 may host one or more TRPs (edge node (EN) , an edge unit (EU) , a radio head (RH) , a smart radio head (SRH) , or the like) .
  • the DU may be located at edges of the network with radio frequency (RF) functionality.
  • RF radio frequency
  • FIG. 4 illustrates example components of the BS 110 and UE 120 illustrated in FIG. 1, which may be used to implement aspects of the present disclosure.
  • the BS may include a TRP or gNB.
  • one or more of the antennas 452, DEMOD/MOD 454, processors 466, 458, 464, and/or controller/processor 480 of the UE 120 may be configured to perform the operations described herein (e.g., operations 900 of FIG. 9) .
  • one or more of the 434, DEMOD/MOD 432, processors 430, 420, 438 and/or controller/processor 440 of the BS 110 may be configured to perform the operations described herein (e.g., operations 1000 of FIG. 10) .
  • the base station 110 may be the macro BS 110c in FIG. 1, and the UE 120 may be the UE 120y.
  • the base station 110 may also be a base station of some other type.
  • the base station 110 may be equipped with antennas 434a through 434t, and the UE 120 may be equipped with antennas 452a through 452r.
  • a transmit processor 420 may receive data from a data source 412 and control information from a controller/processor 440.
  • the control information may be for the Physical Broadcast Channel (PBCH) , Physical Control Format Indicator Channel (PCFICH) , Physical Hybrid ARQ Indicator Channel (PHICH) , Physical Downlink Control Channel (PDCCH) , etc.
  • the data may be for the Physical Downlink Shared Channel (PDSCH) , etc.
  • the processor 420 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively.
  • the processor 420 may also generate reference symbols, e.g., for the PSS, SSS, and cell-specific reference signal (CRS) .
  • reference symbols e.g., for the PSS, SSS, and cell-specific reference signal (CRS) .
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 430 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) 432a through 432t.
  • Each modulator 432 may process a respective output symbol stream (e.g., for OFDM, etc. ) to obtain an output sample stream.
  • Each modulator 432 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal.
  • Downlink signals from modulators 432a through 432t may be transmitted via the antennas 434a through 434t, respectively.
  • the antennas 452a through 452r may receive the downlink signals from the base station 110 and may provide received signals to the demodulators (DEMODs) 454a through 454r, respectively.
  • Each demodulator 454 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples.
  • Each demodulator 454 may further process the input samples (e.g., for OFDM, etc. ) to obtain received symbols.
  • a MIMO detector 456 may obtain received symbols from all the demodulators 454a through 454r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 458 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 460, and provide decoded control information to a controller/processor 480.
  • a transmit processor 464 may receive and process data (e.g., for the Physical Uplink Shared Channel (PUSCH) ) from a data source 462 and control information (e.g., for the Physical Uplink Control Channel (PUCCH) from the controller/processor 480.
  • the transmit processor 464 may also generate reference symbols for a reference signal.
  • the symbols from the transmit processor 464 may be precoded by a TX MIMO processor 466 if applicable, further processed by the demodulators 454a through 454r (e.g., for SC-FDM, etc. ) , and transmitted to the base station 110.
  • the uplink signals from the UE 120 may be received by the antennas 434, processed by the modulators 432, detected by a MIMO detector 436 if applicable, and further processed by a receive processor 438 to obtain decoded data and control information sent by the UE 120.
  • the receive processor 438 may provide the decoded data to a data sink 439 and the decoded control information to the controller/processor 440.
  • the controllers/processors 440 and 480 may direct the operation at the base station 110 and the UE 120, respectively.
  • a scheduler 444 may schedule UEs for data transmission on the downlink and/or uplink.
  • the processor 480 and/or other processors and modules at the UE 120 may perform or direct, e.g., the execution of the functional blocks illustrated in FIG. 9 and/or other processes for the techniques described herein and those illustrated in the appended drawings.
  • the processor 440 and/or other processors and modules at the BS 110 may perform or direct processes for the techniques described with reference to FIG. 10 and/or other processes for the techniques described herein and those illustrated in the appended drawings.
  • the memories 442 and 482 may store data and program codes for the BS 110 and the UE 120, respectively.
  • FIG. 5 illustrates a diagram 500 showing examples for implementing a communications protocol stack, according to aspects of the present disclosure.
  • the illustrated communications protocol stacks may be implemented by devices operating in a 5G system.
  • Diagram 500 illustrates a communications protocol stack including a Radio Resource Control (RRC) layer 510, a Packet Data Convergence Protocol (PDCP) layer 515, a Radio Link Control (RLC) layer 520, a Medium Access Control (MAC) layer 525, and a Physical (PHY) layer 530.
  • RRC Radio Resource Control
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • PHY Physical
  • the layers of a protocol stack may be implemented as separate modules of software, portions of a processor or ASIC, portions of non-collocated devices connected by a communications link, or various combinations thereof. Collocated and non-collocated implementations may be used, for example, in a protocol stack for a network access device (e.g., AN
  • a first option 505-a shows a split implementation of a protocol stack, in which implementation of the protocol stack is split between a centralized network access device (e.g., an ANC 202 in FIG. 2) and distributed network access device (e.g., DU 208 in FIG. 2) .
  • a centralized network access device e.g., an ANC 202 in FIG. 2
  • distributed network access device e.g., DU 208 in FIG. 2
  • an RRC layer 510 and a PDCP layer 515 may be implemented by the central unit
  • an RLC layer 520, a MAC layer 525, and a PHY layer 530 may be implemented by the DU.
  • the CU and the DU may be collocated or non-collocated.
  • the first option 505-a may be useful in a macro cell, micro cell, or pico cell deployment.
  • a second option 505-b shows a unified implementation of a protocol stack, in which the protocol stack is implemented in a single network access device (e.g., access node (AN) , new radio base station (NR BS) , a new radio Node-B (NR NB) , a network node (NN) , or the like. ) .
  • the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530 may each be implemented by the AN.
  • the second option 505-b may be useful in a femto cell deployment.
  • a UE may implement an entire protocol stack (e.g., the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530) .
  • an entire protocol stack e.g., the RRC layer 510, the PDCP layer 515, the RLC layer 520, the MAC layer 525, and the PHY layer 530.
  • FIG. 6 is a diagram showing an example of a frame format 600 for NR.
  • the transmission timeline for each of the downlink and uplink may be partitioned into units of radio frames.
  • Each radio frame may have a predetermined duration (e.g., 10 ms) and may be partitioned into 10 subframes, each of 1 ms, with indices of 0 through 9.
  • Each subframe may include a variable number of slots depending on the subcarrier spacing.
  • Each slot may include a variable number of symbol periods (e.g., 7 or 14 symbols) depending on the subcarrier spacing.
  • the symbol periods in each slot may be assigned indices.
  • a mini-slot which may be referred to as a sub-slot structure, refers to a transmit time interval having a duration less than a slot (e.g., 2, 3, or 4 symbols) .
  • Each symbol in a slot may indicate a link direction (e.g., DL, UL, or flexible) for data transmission and the link direction for each subframe may be dynamically switched.
  • the link directions may be based on the slot format.
  • Each slot may include DL/UL data as well as DL/UL control information.
  • a synchronization signal (SS) block is transmitted.
  • the SS block includes a PSS, a SSS, and a two symbol PBCH.
  • the SS block can be transmitted in a fixed slot location, such as the symbols 0-3 as shown in FIG. 6.
  • the PSS and SSS may be used by UEs for cell search and acquisition.
  • the PSS may provide half-frame timing, the SS may provide the CP length and frame timing.
  • the PSS and SSS may provide the cell identity.
  • the PBCH carries some basic system information, such as downlink system bandwidth, timing information within radio frame, SS burst set periodicity, system frame number, etc.
  • the SS blocks may be organized into SS bursts to support beam sweeping. Further system information such as, remaining minimum system information (RMSI) , system information blocks (SIBs) , other system information (OSI) can be transmitted on a physical downlink shared channel (PDSCH) in certain subframes.
  • RMSI remaining minimum
  • a UE may operate in various radio resource configurations, including a configuration associated with transmitting pilots using a dedicated set of resources (e.g., a radio resource control (RRC) dedicated state, etc. ) or a configuration associated with transmitting pilots using a common set of resources (e.g., an RRC common state, etc. ) .
  • RRC radio resource control
  • the UE may select a dedicated set of resources for transmitting a pilot signal to a network.
  • the UE may select a common set of resources for transmitting a pilot signal to the network.
  • a pilot signal transmitted by the UE may be received by one or more network access devices, such as an AN, or a DU, or portions thereof.
  • Each receiving network access device may be configured to receive and measure pilot signals transmitted on the common set of resources, and also receive and measure pilot signals transmitted on dedicated sets of resources allocated to the UEs for which the network access device is a member of a monitoring set of network access devices for the UE.
  • One or more of the receiving network access devices, or a CU to which receiving network access device (s) transmit the measurements of the pilot signals may use the measurements to identify serving cells for the UEs, or to initiate a change of serving cell for one or more of the UEs.
  • aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms and techniques for an adaptive uplink (UL) configured grant (CG) configuration based on a random hashing function.
  • UL uplink
  • CG configured grant
  • Rel-15 and/or Rel-16 may focus on premium smartphones (e.g., enhanced mobile broadband (eMBB) ) , and other verticals such as ultra-reliable low latency communication (URLLC) and/or vehicle-to-everything (V2X) communications.
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable low latency communication
  • V2X vehicle-to-everything
  • NR new radio
  • RedCap new UE type with reduced capabilities
  • a RedCap UE may exhibit a general relaxation of peak throughput, as well as lower latency and/or reliability requirements.
  • NR RedCap UE may include scalable resource allocation, coverage enhancement for DL and/or UL, power saving in all RRC states, and/or co-existence with the NR premium UE.
  • an NR-RedCap UE may be a smart wearable device, a sensor/camera, or any other device configured for relaxed internet-of-things (IoT) communications.
  • IoT internet-of-things
  • a RedCap UE functionality and/or capability may overlap with those of long term evolution (LTE) and/or fifth generation (5G) devices (e.g., premium 5G devices) .
  • LTE long term evolution
  • 5G fifth generation
  • the functionality of relaxed IoT devices may overlap with that of URLLC devices
  • the functionality of smart wearable devices may overlap with that of low power wide area (LPWA) massive machine type communication (mMTC) devices
  • LPWA low power wide area
  • mMTC massive machine type communication
  • the functionality of sensors/cameras may overlap with that of eMBB devices.
  • Rel-17 may also focus on RedCap UEs.
  • the premium UEs in Rel-15 and/or Rel-16 can be too expensive for some neither eMBB and/or URLLC use cases. For example, this may be the case for smart wearables, video surveillance, and/or industrial wireless sensor. Accordingly, it may be advantageous for a RedCap UE to have reduced implementation complexity, smaller form-factor, and prolonged battery time.
  • uplink intensive traffic e.g., as enumerated in 3GPP TR 22.832
  • moderate reliability and latency i.e., non-URLLC
  • small packet size with relative long transmission interval i.e., low data rate
  • increased capacity up to 1 UE per square meter
  • dynamic grant (DG) based solutions may present a challenge the overall physical downlink control channel (PDCCH) capacity of new radio (NR) of Rel-16.
  • CG configured grant
  • FIG. 8 is an example timeline depicting timing of transmissions according to a configured grant (CG) , in accordance with aspects of the present disclosure.
  • a Rel-15 CG for UL can be implemented for periodic uplink traffic (i.e., with trivial jitter) by allocating a CG UL occasion at (or slightly after) the nominal arrival instance, as illustrated.
  • traffic jittering may be handled by configuring multiple CG ULs around a nominal arrival instant (e.g., in Rel-16) .
  • multiple opportunities within a CG UL occasion may be defined/configured.
  • NR CG UL relies on DG based repetition, and to reduce the number of of DGs, a CG UL can be configured with blind repetition via multiple blind repetitions per occasion (meaning the repetitions are sent with no knowledge of whether the receiver may have already successfully decoded) .
  • the term occasion generally refers to a time (window) in which resources are allocated for a transmission that may or may not ultimately happen.
  • a downlink transmission may or may not occur in an SPS occasions.
  • an uplink transmission may or may not occur in a CG occasion. Occasions may be considered activated if the transmission may occur and, thus, those occasions should be monitored.
  • CG UL is generally more challenging than implementing semi persistent scheduling (SPS) downlink (DL) scheduling, with which a gNB (e.g., a network entity) can re-allocate excessive and/or unused resources to other UEs.
  • SPS semi persistent scheduling
  • DL downlink
  • a gNB e.g., a network entity
  • statistical multiplexing among multiple CG UL UEs is helpful necessary for industrial wireless sensor network. This may be the case when there are many UEs, each with kind of random traffic arrival. Further, this may be helpful when there is a group of UEs with delay insensitive traffic (e.g., some industrial sensors) .
  • statistical multiplexing may have two components: spreading and overloading control.
  • Spreading provides for uniformly distributing traffic (e.g., as interference to others) into the resource pool.
  • Overloading control provides for controlling the level of multiplexing within a stable region, since overly aggressive multiplexing may result in an unusable portion of the resource pool.
  • a CG UE may be configured with a resource pool for each occasion instead of a portions of resources.
  • This pool can be shared (or partially shared) with other CG UEs, and the CG UE may access one portion of resources in the resource pool using a hashing function configured by a network entity.
  • the hash function (which uses inputs such as UE ID, time, etc. ) outputs an index pointing to a resource in the pool.
  • the network entity knows which UEs are accessing a specific resource, especially when a collision happens.
  • the CG UE may access the pool with an access probability, which may be controlled by the network entity.
  • the network entity can facilitate control over an observed and/or predicted overloading by manipulating access probability with respect to one adaptive CG UE, a group of adaptive CG UEs, or all adaptive CG UEs. This facilitating can be implemented for initial transmission and blind retransmission.
  • the network entity can send a DG to allocate dedicated resources, which, however, may suffer PDCCH capacity bottleneck.
  • the network entity can send a negative acknowledgement (NACK) to indicate an autonomous retransmission from the UE.
  • NACK negative acknowledgement
  • an adaptive CG UE may struggle in delivering the packet without the help of the network entity (gNB) .
  • aspects of the present disclosure provide techniques for including a random seed value as an input to the hashing function for adaptive CG, such that the index for occupying a resource in a CG resource pool depends not only a UE ID (or time, etc. ) but also on the seed value.
  • a network entity can further change the resource usage of a CG UE when accessing the CG resource pool, on top of gating access via access probability.
  • Incorporating a network entity-controlled random seed value can provide for reduced resource collisions for CG UEs.
  • one potential use of the mechanism proposed herein is for a gNB to arrange a batch (via group common signaling) of retransmissions/repetitions of adaptive CG UL UEs (in a manner that reduces collisions) .
  • FIG. 9 illustrates example operations 900 for wireless communications by a UE.
  • Operations 900 may be performed, for example, by a UE 120 (e.g., UE 120) participating in communications with a base station that configures the UE with multiple SPS configurations.
  • a UE 120 e.g., UE 120
  • a base station that configures the UE with multiple SPS configurations.
  • Operations 900 begin, at 902, by receiving an adaptive CG configuration, wherein the configuration indicates a pool of UL resources for CG transmissions.
  • the UE selects, based on a hashing function that uses at least a seed value as an input, from the pool of UL resources for sending a CG physical uplink shared channel (PUSCH) in a CG occasions.
  • PUSCH physical uplink shared channel
  • FIG. 10 illustrates example operations 1000 that may be performed by a network entity and may be considered complementary to operations 900 of FIG. 9.
  • operations 1000 may be performed by a gNB to provide a UE (e.g., a UE performing operations 900 of FIG. 9) with an UL CG configuration based on a random hashing function.
  • a UE e.g., a UE performing operations 900 of FIG. 9
  • Operations 1000 begin, at 1002, by sending a UE an adaptive CG configuration, wherein the configuration indicates a pool of UL resources for CG transmissions.
  • the network entity indicates, to the UE a seed value to use as input to a hashing function for selecting, from the pool of UL resources for sending a CG physical uplink shared channel (PUSCH) in a CG occasions.
  • the network entity monitors for the CG PUSCH in the CG occasion sent on UL resources selected by the UE based on the seed value and hashing function.
  • PUSCH physical uplink shared channel
  • a random seed value may be included as an input to the hashing function for the adaptive CG.
  • the network entity can control the resource usage of a CG UE when accessing CG pool. Further, the network entity can manipulate the seed value (s) of a group of CG UEs (e.g., CG UEs seeking retransmission) to determine a temporal orthogonal resource usage to significantly improve the success rate.
  • a group of CG UEs e.g., CG UEs seeking retransmission
  • FIG. 11 which is a table 1100 of example seed values and UE identifier (ID) values used to indicate CG UL resources seed value 001 may be a better choice of seed value than 011. This is due to selecting seed value 011 causes a collision between UE 000 and UE 011 since each of UE 000 and UE 011 output 0 from the hashing function.
  • a gNB may select seed values to effectively arrange a batch (e.g., via group common signaling or groupcast) of retransmissions/repetitions of adaptive CG UL UEs.
  • signaling overhead may be reduced when compared to conventional (separate) downlink grants (DGs) targeting specific UEs.
  • DGs downlink grants
  • a gNB may know that retransmission is needed, and thus provide guidance to eliminate a predicated collision (e.g., a collision of a CG UL retransmission with other CG UL retransmission (s) ) .
  • a predicated collision e.g., a collision of a CG UL retransmission with other CG UL retransmission (s)
  • a collision at occasion n may not lead to another collision occasion n+1 (e.g., due to both traffic uncertainty and time dependence of the hashing function) .
  • a UE can be configured with an adaptive CG for UL, including various components.
  • the configuration of CG for UL may include:
  • the UE can receive the seed value of from downlink control information (DCI) .
  • DCI downlink control information
  • P is the size of the CG resource pool.
  • the UE in can be configured with a muting seed value (S_m) , where, upon receiving this seed, the UE will be muted (e.g., refrain) from performing a CG UL transmission or retransmission.
  • the UE may receive an indication of the seed value via unicast signaling, for example, via a media access control (MAC) control element (CE) or via radio resource control (RRC) signaling.
  • the MAC-CE and/or the RRC can further indicate the seed value as being an active seed value, where the seed value referenced above may be considered the default seed.
  • the active seed value may be associated with active timer, where the UE may return to using the default seed value after the active timer expires.
  • This updated active seed value can be used for both initial transmission and retransmission. Further, the updated seed value can be used in conjunction with a new (updated) access probability control. Similar to the updated active seed value, the updated access probability control can be considered an active access probability control with an associated active timer.
  • the gNB can use groupcast (GC) PDCCH to send updated seed value (s) to a group of two or more CG UEs.
  • the UE may be assigned a (new) GC radio network temporary identifier (RNTI) to monitor.
  • the GC RNTI can be used to receive updated access probability control.
  • the UE may be configured to receive a partial update of the seed value from the GC-PDCCH (e.g., the lowest s bit) to reduce signaling overhead. Similar to the active seed value described above, the GC-PDCCH may indicate that some of these updated seed values are active seed values enabled by corresponding active timers for each updated (active) seed value.
  • the gNB may divide the group of UEs into sub-group and seed a common scalar/value to CG UEs in same sub- group.
  • a hashing function including modulo operation is non-linear and, hence, there may be multiple (different) seeds causing the same output.
  • some gNBs may determine a common seed value for a sub-group of CG UEs who occupy the resource in an orthogonal manner.
  • the gNB may determine one common seed value for all group members.
  • the low-bit common value of S can be appended to an existing GC-PDCCH which may simplify implementation.
  • the gNB may send a (new) DCI to a CG UL UE for retransmission using a specific seed value to access a specific CG occasion.
  • a CG UE may be configured to search for a DCI (e.g., the new DCI) within a time window after an initial transmission for an indication to retransmit.
  • the gNB may conduct blind decoding to receive the initial CG UL transmission.
  • a demodulated reference signal (DMRS) sequence and/or port (or low modulation and coding scheme (MCS) uplink control information (UCI) may be used to indicate/detect the presence of an initial transmission.
  • DMRS demodulated reference signal
  • MCS low modulation and coding scheme
  • UCI uplink control information
  • the gNB may send the DCI (e.g., the new DCI) for retransmission.
  • the new DCI may use a seed value (e.g., together with configured hashing function and a configured CG resource pool) to replace fine-granularity time domain resource allocation (TDRA) and/or frequency domain resource allocation (FDRA) in a conventional DCI.
  • TDRA time domain resource allocation
  • FDRA frequency domain resource allocation
  • the CG occasion for retransmission may be specified using a subframe number (SFN) plus a slot offset.
  • the specific seed value may be configured to be only active for retransmission in the specified CG occasion.
  • the gNB may send a (new) GC-PDCCH to a group of CG UEs for retransmission using a sets of seed values (e.g., a seed value for each CG UE of the group of CG UEs) to access a set of CG occasions.
  • a sets of seed values e.g., a seed value for each CG UE of the group of CG UEs
  • the fine-granularity TDRA and FDRA may be replaced by the hashing function, the seed value, and the CG resource pool.
  • a gNB may be able to determine a common seed value for this group of CG UEs, which can save bits on seed values.
  • the gNB may determine the common seed value over a set of CG occasions which are densely located within a short time-domain interval, which may even further save bits on specifying occasions. In some cases, this set of seed values may only active in this set of CG occasions.
  • the CG-PDCCH can include “forbidden access” for another set of CG UEs that may have initial transmission (s) overlapping with the resources (s) for retransmission (s) , for example, prompting other CG UEs to not select these resources.
  • the “forbidden access” indication can be sent either via the muting seed (as described above) , or by manipulating the access probability (as described above) .
  • the GC-PDCCH can define a new resource pool (e.g., with TDRA and FDRA) for retransmission using the specific set of seed values.
  • the output of the hashing function may be an index to the new resource pool.
  • Each of the examples for improving the success rate of retransmissions may be used alone, or in combination with one another as appropriate.
  • the CG UE may be configured with an index i of a determined pseudo-random sequence as the random seed value.
  • FIG. 12 shows a table of example pseudo-random index values used by different UEs as a seed value.
  • the seed value may not be signaled explicitly, any of the above aspects can still be applicable and used in conjunction with the pseudo-random sequence as the random seed value.
  • the same index i can be used to configure different seed values to the group of CG UEs to reduce the computation complexity in determining a common value of seed value (as described above) .
  • the pseudo random sequence may include the muting seed value.
  • the CG UE may be configured with an index I to a table of various hashing functions specified by gNB (e.g., via a system information block (SIB) or RRC signaling) .
  • SIB system information block
  • RRC radio resource control
  • FIG. 13 illustrates a communications device 1300 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations illustrated in FIG. 9.
  • the communications device 1300 includes a processing system 1302 coupled to a transceiver 1308.
  • the transceiver 1308 is configured to transmit and receive signals for the communications device 1300 via an antenna 1310, such as the various signals as described herein.
  • the processing system 1302 may be configured to perform processing functions for the communications device 1300, including processing signals received and/or to be transmitted by the communications device 1300.
  • the processing system 1302 includes a processor 1304 coupled to a computer-readable medium/memory 1312 via a bus 1306.
  • the computer-readable medium/memory 1312 is configured to store instructions (e.g., computer-executable code) that when executed by the processor 1304, cause the processor 1304 to perform the operations illustrated in FIG. 10, or other operations for performing the various techniques discussed herein.
  • computer-readable medium/memory 1312 stores code 1314 for receiving an adaptive configured grant (CG) configuration, wherein the configuration indicates a pool of uplink (UL) resources for CG transmissions; code 1316 for selecting, based on a hashing function that uses at least a seed value as an input, from the pool of UL resources for sending a CG physical uplink shared channel (PUSCH) in a CG occasions; and code 1318 for sending the CG PUSCH in the CG occasion on the selected UL resources.
  • the processor 1304 has circuitry configured to implement the code stored in the computer-readable medium/memory 1312.
  • the processor 1304 includes circuitry 1320 for receiving an adaptive configured grant (CG) configuration, wherein the configuration indicates a pool of uplink (UL) resources for CG transmissions; circuitry 1322 for selecting, based on a hashing function that uses at least a seed value as an input, from the pool of UL resources for sending a CG physical uplink shared channel (PUSCH) in a CG occasions; and circuitry 1324 for sending the CG PUSCH in the CG occasion on the selected UL resources.
  • CG adaptive configured grant
  • FIG. 14 illustrates a communications device 1400 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations illustrated in FIG. 10.
  • the communications device 1400 includes a processing system 1402 coupled to a transceiver 1408.
  • the transceiver 1408 is configured to transmit and receive signals for the communications device 1400 via an antenna 1410, such as the various signals as described herein.
  • the processing system 1402 may be configured to perform processing functions for the communications device 1400, including processing signals received and/or to be transmitted by the communications device 1400.
  • the processing system 1402 includes a processor 1404 coupled to a computer-readable medium/memory 1412 via a bus 1406.
  • the computer-readable medium/memory 1412 is configured to store instructions (e.g., computer-executable code) that when executed by the processor 1404, cause the processor 1404 to perform the operations illustrated in FIG. 10, or other operations for performing the various techniques discussed herein.
  • computer-readable medium/memory 1412 stores code 1414 for sending a user equipment (UE) an adaptive configured grant (CG) configuration, wherein the configuration indicates a pool of uplink (UL) resources for CG transmissions; code 1416 for indicating, to the UE a seed value to use as input to a hashing function for selecting, from the pool of UL resources for sending a CG physical uplink shared channel (PUSCH) in a CG occasions; and code 1418 for monitoring for the CG PUSCH in the CG occasion sent on UL resources selected by the UE based on the seed value and hashing function.
  • the processor 1404 has circuitry configured to implement the code stored in the computer-readable medium/memory 1412.
  • the processor 1404 includes circuitry 1420 for sending a user equipment (UE) an adaptive configured grant (CG) configuration, wherein the configuration indicates a pool of uplink (UL) resources for CG transmissions; circuitry 1422 for indicating, to the UE a seed value to use as input to a hashing function for selecting, from the pool of UL resources for sending a CG physical uplink shared channel (PUSCH) in a CG occasions; and circuitry 1424 for monitoring for the CG PUSCH in the CG occasion sent on UL resources selected by the UE based on the seed value and hashing function.
  • UE user equipment
  • CG adaptive configured grant
  • the methods disclosed herein comprise one or more steps or actions for achieving the described method.
  • the method steps and/or actions may be interchanged with one another without departing from the scope of the claims.
  • the order and/or use of specific steps and/or actions may be modified without departing from the scope of the claims.
  • a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members.
  • “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) .
  • 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.
  • 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.
  • ASIC application specific integrated circuit
  • processors 458, 464, 466, and/or controller/processor 480 of the UE 120 and/or processors 420, 430, 438, and/or controller/processor 440 of the BS 110 shown in FIG. 4 may be configured to perform operations 900 of FIG. 9 and operations 1000 of FIG. 10.
  • Means for receiving may include a receiver such as one or more antennas and/or receive processors illustrated in FIG. 4.
  • means for transmitting may include a transmitter such as one or more antennas and/or transmit processors illustrated in FIG. 4.
  • Means for monitory, means for indicating, means for signaling, means for activating, and means for deactivating may include a processing system, which may include one or more processors, such as processors 458, 464, 466, and/or controller/processor 480 of the UE 120 and/or processors 420, 430, 438, and/or controller/processor 440 of the BS 110 shown in FIG. 4.
  • a device may have an interface to output a frame for transmission (a means for outputting) .
  • a processor may output a frame, via a bus interface, to a radio frequency (RF) front end for transmission.
  • RF radio frequency
  • a device may have an interface to obtain a frame received from another device (a means for obtaining) .
  • a processor may obtain (or receive) a frame, via a bus interface, from an RF front end for reception.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • PLD programmable logic device
  • 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, or any other such configuration.
  • an example hardware configuration may comprise a processing system in a wireless node.
  • the processing system may be implemented with a bus architecture.
  • the bus may include any number of interconnecting buses and bridges depending on the specific application of the processing system and the overall design constraints.
  • the bus may link together various circuits including a processor, machine-readable media, and a bus interface.
  • the bus interface may be used to connect a network adapter, among other things, to the processing system via the bus.
  • the network adapter may be used to implement the signal processing functions of the PHY layer.
  • a user interface e.g., keypad, display, mouse, joystick, etc.
  • a user interface e.g., keypad, display, mouse, joystick, etc.
  • the bus may also link various other circuits such as timing sources, peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further.
  • the processor may be implemented with one or more general-purpose and/or special-purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuitry that can execute software. Those skilled in the art will recognize how best to implement the described functionality for the processing system depending on the particular application and the overall design constraints imposed on the overall system.
  • the functions may be stored or transmitted over as one or more instructions or code on a computer readable medium.
  • Software shall be construed broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • Computer-readable media include both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • the processor may be responsible for managing the bus and general processing, including the execution of software modules stored on the machine-readable storage media.
  • a computer-readable storage medium may be coupled to a processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor.
  • the machine-readable media may include a transmission line, a carrier wave modulated by data, and/or a computer readable storage medium with instructions stored thereon separate from the wireless node, all of which may be accessed by the processor through the bus interface.
  • the machine-readable media, or any portion thereof may be integrated into the processor, such as the case may be with cache and/or general register files.
  • machine-readable storage media may include, by way of example, RAM (Random Access Memory) , flash memory, ROM (Read Only Memory) , PROM (Programmable Read-Only Memory) , EPROM (Erasable Programmable Read-Only Memory) , EEPROM (Electrically Erasable Programmable Read-Only Memory) , registers, magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof.
  • RAM Random Access Memory
  • ROM Read Only Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read-Only Memory
  • EEPROM Electrical Erasable Programmable Read-Only Memory
  • registers magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof.
  • the machine-readable media may be embodied in a computer-program product.
  • a software module may comprise a single instruction, or many instructions, and may be distributed over several different code segments, among different programs, and across multiple storage media.
  • the computer-readable media may comprise a number of software modules.
  • the software modules include instructions that, when executed by an apparatus such as a processor, cause the processing system to perform various functions.
  • the software modules may include a transmission module and a receiving module. Each software module may reside in a single storage device or be distributed across multiple storage devices.
  • a software module may be loaded into RAM from a hard drive when a triggering event occurs.
  • the processor may load some of the instructions into cache to increase access speed.
  • One or more cache lines may then be loaded into a general register file for execution by the processor.
  • any connection is properly termed a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared (IR) , radio, and microwave
  • the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • Disk and disc include compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.
  • computer-readable media may comprise non-transitory computer-readable media (e.g., tangible media) .
  • computer-readable media may comprise transitory computer-readable media (e.g., a signal) . Combinations of the above should also be included within the scope of computer-readable media.
  • certain aspects may comprise a computer program product for performing the operations presented herein.
  • a computer program product may comprise a computer-readable medium having instructions stored (and/or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein.
  • instructions for perform the operations described herein and the appended figures may comprise a computer-readable medium having instructions stored (and/or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein.
  • modules and/or other appropriate means for performing the methods and techniques described herein can be downloaded and/or otherwise obtained by a user terminal and/or base station as applicable.
  • a user terminal and/or base station can be coupled to a server to facilitate the transfer of means for performing the methods described herein.
  • various methods described herein can be provided via storage means (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc. ) , such that a user terminal and/or base station can obtain the various methods upon coupling or providing the storage means to the device.
  • storage means e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.
  • CD compact disc
  • floppy disk etc.
  • any other suitable technique for providing the methods and techniques described herein to a device can be utilized.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des aspects de la présente invention concernent des communications sans fil, et plus particulièrement, des mécanismes et des techniques de configuration d'autorisation configurée (CG) de liaison montante (UL) adaptative sur la base d'une fonction de hachage aléatoire.
PCT/CN2020/112521 2020-08-31 2020-08-31 Autorisation configurée de liaison montante adaptative basée sur une fonction de hachage aléatoire WO2022041208A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/112521 WO2022041208A1 (fr) 2020-08-31 2020-08-31 Autorisation configurée de liaison montante adaptative basée sur une fonction de hachage aléatoire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/112521 WO2022041208A1 (fr) 2020-08-31 2020-08-31 Autorisation configurée de liaison montante adaptative basée sur une fonction de hachage aléatoire

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WO2022041208A1 true WO2022041208A1 (fr) 2022-03-03

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WO2023207767A1 (fr) * 2022-04-28 2023-11-02 Mediatek Singapore Pte. Ltd. Schémas d'autorisation dynamique hybride et d'autorisation configurée adressant une gigue d'arrivée de trafic pour des transmissions de réalité augmentée en liaison montante

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WO2020167229A1 (fr) * 2019-02-15 2020-08-20 Telefonaktiebolaget Lm Ericsson (Publ) Amélioration de la fiabilité pour un équipement d'utilisateur avec des répétitions partielles dans une autorisation configurée
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023207767A1 (fr) * 2022-04-28 2023-11-02 Mediatek Singapore Pte. Ltd. Schémas d'autorisation dynamique hybride et d'autorisation configurée adressant une gigue d'arrivée de trafic pour des transmissions de réalité augmentée en liaison montante

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