WO2025097272A1 - Commutation de faisceau initiée par un équipement utilisateur à faible latence - Google Patents

Commutation de faisceau initiée par un équipement utilisateur à faible latence Download PDF

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WO2025097272A1
WO2025097272A1 PCT/CN2023/129881 CN2023129881W WO2025097272A1 WO 2025097272 A1 WO2025097272 A1 WO 2025097272A1 CN 2023129881 W CN2023129881 W CN 2023129881W WO 2025097272 A1 WO2025097272 A1 WO 2025097272A1
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Prior art keywords
state
beam state
resource
group
states
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English (en)
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Wenfeng Liu
Bo Gao
Zhaohua Lu
Ke YAO
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ZTE Corp
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ZTE Corp
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • This patent document is directed generally to wireless communications.
  • LTE Long-Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • LTE-A LTE Advanced
  • 5G The 5th generation of wireless system, known as 5G, advances the LTE and LTE-Awireless standards and is committed to supporting higher data rates, large number of connections, ultra-low latency, high reliability, and other emerging business needs.
  • UE user equipment
  • the UE selects a beam state or a beam state group from a number of beam states or beam state groups in a latest measurement result report or a number of beam states or beam state groups activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • a first example wireless communication method includes transmitting, by a wireless device, a beam state. The method further includes performing, by the wireless device and based on the beam state, a transmission or a reception of a data burst without a beam activation or a beam indication from a network node.
  • a second example wireless communication method includes transmitting, by a wireless device, a number of beam states in a latest measurement result report. The method further includes performing, by the wireless device and based on the number of beam states in the latest measurement result report, a transmission or a reception of a data burst on a beam state selected from the number of beam states in the latest measurement result report or a number of beam states activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • a third example wireless communication method includes transmitting, by a wireless device, a number of beam states, where the number of beam states belong to a number of beam state groups in a latest measurement result report.
  • the method further includes performing, by the wireless device and based on the number of beam state groups in the latest measurement result report, a transmission or a reception of a data burst on a beam state group selected from the number of beam state groups in the latest measurement result report or a number of beam state groups activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • a fourth example wireless communication method includes determining, by a wireless device and based on a beam state in a latest measurement result report, a number of beam states. The method further includes transmitting, by the wireless device, the number of beam states, where the number of beam states are used for a number of transmission or reception instances.
  • a fifth example wireless communication method includes receiving, by a network node, a beam state. The method further includes transmitting, by the network node, a network response associated with the beam state. The method further includes performing, by the network node and based on the network response, a transmission or a reception of a data burst without transmitting a beam activation or a beam indication to a wireless device.
  • a sixth example wireless communication method includes receiving, by a network node, a number of beam states in a latest measurement result report. The method further includes performing, by the network node and based on the number of beam states in the latest measurement result report, a transmission or a reception of a data burst on a beam state selected from the number of beam states in the latest measurement result report or a number of beam states activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • a seventh example wireless communication method includes receiving, by a network node, a number of beam states, where the number of beam states belong to a number of beam state groups in a latest measurement result report. The method further includes performing, by the network node and based on the number of beam state groups in the latest measurement result report, a transmission or a reception of a data burst on a beam state group selected from the number of beam state groups in the latest measurement result report or a number of beam state groups activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • a device that is configured or operable to perform the above-described methods.
  • the device may include a processor configured to implement the above-described methods.
  • the above-described methods are embodied in the form of processor-executable code and stored in a non-transitory computer-readable storage medium.
  • the code included in the computer readable storage medium when executed by a processor, causes the processor to implement the methods described in this patent document.
  • FIG. 1 illustrates beams selected from a latest measurement result report.
  • FIG. 2 illustrates beams activated by media access control (MAC) control elements (CEs) and selected from a latest measurement result report.
  • MAC media access control
  • CEs control elements
  • FIG. 3 illustrates beam groups selected from a latest measurement result report.
  • FIG. 4 is an exemplary flowchart for performing a transmission or a reception by a wireless device.
  • FIG. 5 is an exemplary flowchart for selecting a beam state.
  • FIG. 6 is an exemplary flowchart for selecting a beam state group.
  • FIG. 7 is an exemplary flowchart for determining beam states based on a latest measurement result report.
  • FIG. 8 is an exemplary flowchart for transmitting a network response.
  • FIG. 9 is an exemplary flowchart for performing a transmission or a reception by a network node based on a selected beam state.
  • FIG. 10 is an exemplary flowchart for performing a transmission or a reception by a network node based on a selected beam state group.
  • FIG. 11 illustrates an exemplary block diagram of a hardware platform that may be a part of a network node or a wireless device.
  • FIG. 12 illustrates exemplary wireless communication including a Base Station (BS) and User Equipment (UE) based on some implementations of the disclosed technology.
  • BS Base Station
  • UE User Equipment
  • the present patent document describes how a wireless device transmits and receives data on a beam state without a network activation or indication.
  • Transmission Configuration Indication is a signaling mechanism used in new radio (NR) to facilitate beam indication and inform user equipment (UE) about the transmission parameters of target channels/reference signals (RSs) .
  • NR new radio
  • UE user equipment
  • RSs target channels/reference signals
  • RRC radio resource control
  • MAC media access control
  • CE control element
  • DCI downlink control information
  • the beam or beam group associated with the latest report is directly applied without additional beam activation/indication from the network (NW) , for providing a reference signal for the quasi co-location for physical downlink shared channel (PDSCH) /physical downlink control channel (PDCCH) /channel state information reference signal (CSI-RS) , and to provide a reference, if applicable, for determining uplink (UL) transmit (TX) spatial filter for physical uplink shared channel (PUSCH) /physical uplink control channel (PUCCH) /sounding reference signal (SRS) .
  • NW network
  • NW network
  • PDSCH physical downlink shared channel
  • PDCH physical downlink control channel
  • CSI-RS channel state information reference signal
  • a default rule is provided for the determination of beam switching, or an additional beam selection field is introduced in the DCI signaling to indicate one beam from the beam pool originated from the reported candidate beams.
  • Enhancements to UE-initiated beam switching for multiple transmission and reception point (MTRP) scenarios and multiple future time instances are also considered to further reduce the signaling overhead for beam indication.
  • MTRP transmission and reception point
  • New Radio is a new radio access technology developed by 3rd Generation Partnership Project (3GPP) as a standard for air interfaces in radio networks.
  • 3GPP 3rd Generation Partnership Project
  • One of the key features of NR is the support of high frequency bands. High frequency bands have abundant frequency-domain resources, but wireless signals in high frequency bands decay quickly, which significantly limits the coverage of the wireless signals operating in those bands. To mitigate these adverse effects, transmitting signals in a beam mode that is able to concentrate energy in a relatively small spatial range is implemented, which improves the coverage in the high frequency bands.
  • 3GPP has developed a set of beam management procedures for adjusting the beam direction in the high frequency band and maintaining a suitable transmitting and receiving beam pair, including beam sweeping, beam measurement, beam reporting, and beam indication.
  • the UE is configured with at least one resource setting for channel measurement and at least one reporting setting for CSI report. Each reporting setting contains the parameters for one CSI reporting band and the CSI related quantities to be reported by the UE.
  • the CSI related quantities to be reported by the UE mainly include CSI-RS resource indicator (CRI) , synchronization signal (SS) /physical broadcast channel (PBCH) Block resource indicator (SSBRI) , L1-reference signal received power (RSRP) or L1-signal interference + noise ratio (SINR) .
  • CRI CSI-RS resource indicator
  • SS synchronization signal
  • PBCH physical broadcast channel
  • SSBRI Block resource indicator
  • RSRP L1-reference signal received power
  • SINR L1-signal interference + noise ratio
  • Transmission Configuration Indication is a signaling mechanism used in NR to facilitate beam indication and inform UE about the transmission parameters of target channels/RS.
  • the UE can be configured with a list of up to 128 TCI states, for providing a reference signal (i.e., QCL source) for the quasi co-location for demodulation reference signal (DM-RS) of PDSCH and DM-RS of PDCCH in a component carrier (CC) , for CSI-RS, and to provide a reference, if applicable, for determining UL TX spatial filter for dynamic-grant and configured-grant based PUSCH and PUCCH resource in a CC, and SRS.
  • the UE can use the similarities like delay spread, Doppler spread, Doppler shift, and average delay when forming the corresponding channel estimations.
  • the TCI state can be pointed to the UE with RRC configuration, MAC CE activation or DCI or a combination thereof, where the signaling mechanism maybe different depending on the target channels/RS.
  • the UE-specific MAC CE can be used to down-select from up to 128 TCI states to up to 8 TCI states and/or pairs of TCI states, which can subsequently be selected directly by a DCI to indicate the UE with the exact TCI state assumption valid for a given channel/RS at a given time.
  • the TCI state is provided via RRC for periodic CSI-RS, via MAC CE for semi-persistent CSI-RS, and via a combination of RRC, MAC CE, and DCI for aperiodic CSI-RS.
  • RRC for periodic CSI-RS
  • MAC CE for semi-persistent CSI-RS
  • DCI for aperiodic CSI-RS.
  • beam state is also called “beam. ” Specifically:
  • Tx beam is equivalent to QCL state, TCI state, spatial relation state, DL/UL reference signal (such as channel state information reference signal (CSI-RS) , synchronization signal block (SSB) (which is also called as SS/PBCH) , demodulation reference signal (DM-RS) , sounding reference signal (SRS) , and physical random access channel (PRACH) ) , Tx spatial filter or Tx precoding;
  • CSI-RS channel state information reference signal
  • SSB synchronization signal block
  • DM-RS demodulation reference signal
  • SRS sounding reference signal
  • PRACH physical random access channel
  • Rx beam is equivalent to QCL state, TCI state, spatial relation state, spatial filter, receiver (Rx) spatial filter or Rx precoding
  • beam identifier (ID) is equivalent to QCL state index, TCI state index, spatial relation state index, reference signal index, spatial filter index or precoding index.
  • the spatial filter can be either UE-side or gNodeB (gNB) -side one, and the spatial filter is also called spatial-domain filter.
  • gNB gNodeB
  • spatial relation information includes one or more reference RSs, which is used to represent the same or quasi-co “spatial relation” between targeted “RS or channel” and the one or more reference RSs.
  • beam state is associated with or includes, one or more reference RSs and/or their corresponding QCL type parameters, where QCL type parameters include at least one of the following aspects or combinations: [1] Doppler spread, [2] Doppler shift, [3] delay spread, [4] average delay, [5] average gain, and [6] Spatial parameter.
  • TCI state is equivalent to “beam state” .
  • spatial parameter is equivalent to spatial parameter, spatial Rx parameter or spatial filter.
  • 'QCL-TypeA' ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇
  • UL channel can be PUCCH or PUSCH.
  • DL channel can be PDCCH, or PDSCH.
  • UL RS can be SRS, PRACH, DM-RS (e.g., DM-RS for PUSCH or PUCCH) .
  • DL RS can be SSB, CSI-RS, DM-RS (e.g., DM-RS for PDSCH, or PDCCH) .
  • UL signal can be UL channel or UL RS (e.g., SRS, PRACH, DM-RS, PUSCH or PUCCH) .
  • UL RS e.g., SRS, PRACH, DM-RS, PUSCH or PUCCH
  • DL signal can be DL channel or DL RS (SSB, CSI-RS, DM-RS, PDSCH, or PDCCH) .
  • time unit can be sub-symbol, symbol, slot, sub-frame, frame, or transmission occasion.
  • the power control parameter includes target power (also called as P0) , path loss RS, scaling factor for path loss (also called alpha) , or closed loop process.
  • target power also called as P0
  • path loss RS path loss RS
  • scaling factor for path loss also called alpha
  • the path-loss can be couple loss.
  • DCI is equivalent to “PDCCH. ”
  • precoding information is equivalent to a pre-coding matrix indicator (PMI) , transmission PMI (TPMI) , precoding or beam.
  • PMI pre-coding matrix indicator
  • TPMI transmission PMI
  • TRP is equivalent to a RS port, a RS port group, RS resource, or a RS resource set.
  • port group is equivalent to antenna group, or UE port group.
  • the UE measures the reference signal resources carried on different transmit beams and reports the measurement results (i.e., beam quality) to the base station, and then the base station determines the optimal beam and perform beam switching based on the RRC/MAC CE/DCI based hierarchical TCI indication framework.
  • the latency and signaling overhead for beam switching may be non-negligible, resulting from the transmission of MAC CE command for TCI states activation and/or DCI signaling for TCI state indication.
  • One of the beam ID (or RS resource ID or TCI state ID) selected from a configured RS resource set for channel measurement or from a configured TCI state pool is reported to the NW.
  • one of the beam ID (or RS resource ID or TCI state ID) associated with the largest measured beam quality is reported from the UE to the NW.
  • the measured beam quality associated with the beam ID (or RS resource ID or TCI state ID) may also be reported to the NW.
  • the UE may need to monitor NW response for UE-initiated beam switching and determining whether the reported beam ID (or RS resource ID or TCI state ID) is applicable or not.
  • the UE can be provided with a dedicated control resource set (CORESET) and search space for monitoring a dedicated PDCCH/DCI.
  • CORESET dedicated control resource set
  • the UE will autonomously perform beam switching and apply the reported beam (or RS resource or TCI state) for target channels/RS after a certain time.
  • the UE may autonomously perform beam switching after a certain time without monitoring any NW response.
  • the UE will directly apply the beam (or RS resource or TCI state) associated with the latest reporting instance after a certain time.
  • the UE will assume that the DM-RS ports of PDSCH, and/or the DM-RS port of PDCCH, and/or the CSI-RS port (s) of a CSI-RS resource of a serving cell are quasi co-located with the beam (or RS resource) with respect to qcl-Type set to 'typeD' , and when applicable, also with respect to qcl-Type set to 'typeA' , 'typeB' , or 'typeC' .
  • the UE will monitor PDCCH, and/or receives PDSCH, and/or receives CSI-RS resource in a CSI-RS resource set applying the reported TCI state.
  • the beam (or RS resource or TCI state) reported in the latest reporting instance can also be used for determining UL TX spatial filter for dynamic-grant and/or configured-grant based PUSCH and/or PUCCH resource in a CC, and/or SRS.
  • the UE may need to monitor NW response after reporting multiple candidate beams. If a positive NW response is detected, it is considered that the UE-initiated beam switching has been granted by the NW. Additionally, since multiple candidate beams are reported, it should be further determined which beam is applied for the reception of target channels/RS. The following methods can be considered.
  • the first beam ID (or RS resource ID or TCI state ID) is directly applied after a certain time.
  • the last beam ID (or RS resource ID or TCI state ID) is directly applied after a certain time.
  • the beam ID (or RS resource ID or TCI state ID) associated with the largest measured beam quality (e.g., RSRP, SINR) is directly applied after a certain time.
  • the beam ID (or RS resource ID or TCI state ID) associated with the lowest ID is directly applied after a certain time.
  • the beam ID (or RS resource ID or TCI state ID) associated with the highest ID is directly applied after a certain time.
  • NW will indicate one beam ID (or RS resource ID or TCI state ID) by DCI signaling from a beam pool.
  • the beam pool is composed of all (or part of) reported candidate beams in the latest reporting instance.
  • an additional beam selection field is introduced in the DCI signaling to indicate one of the reported candidate beams in the latest reporting instance for the reception of target channels/RS.
  • the bit width for the new DCI field is where is the ceiling function, and N is the number of candidate beams reported in the latest reporting instance (i.e., the number of beams or RS resources or TCI states to be reported per report setting) .
  • the codepoints in the DCI field point into a beam (or RS resource or TCI state) list reported by the UE in the latest reporting instance.
  • the DCI selects one of the reported beams to be assumed for the reception of target channels/RS.
  • N 4 as an example
  • the DCI codepoint '00' , '01' , '10' , '11' indicates the first, second, third, and fourth beam reported in the latest reporting instance, respectively, as shown in FIG. 1.
  • NW will indicate one beam ID (or RS resource ID or TCI state ID) by DCI signaling from a beam pool.
  • the beam pool is a combination of MAC CE activated beams (or part of or none of MAC CE activated beams) and all reported candidate beams (or part of or none of reported candidate beams) in the latest reporting instance.
  • an additional beam selection field is introduced in the DCI signaling to indicate one beam from the beam pool.
  • the bit width for the new DCI field is where is the ceiling function, M is the number of MAC CE activated beams in the beam pool, and N is the number of candidate beams in the beam pool reported in the latest reporting instance.
  • the codepoints in the DCI field point into a beam (or RS resource or TCI state) list in the beam pool.
  • the DCI selects one beam to be assumed for the reception of target channels/RS.
  • one beam (or RS resource or TCI state) is indicated by default or by the new DCI field for providing a reference signal (i.e., QCL source) for the quasi co-location for DM-RS of PDSCH and DM-RS of PDCCH in a CC, for CSI-RS, and to provide a reference signal, if applicable, for determining UL TX spatial filter for dynamic-grant and configured-grant based PUSCH and PUCCH resource in a CC, and SRS.
  • a reference signal i.e., QCL source
  • the group-based beam reporting can be configured, which implies that different beams reported in the same group can be received simultaneously at the UE, or different beams reported for different groups can be received simultaneously at the UE.
  • the UE will directly apply the beam group for the reception of target channels/RS after a certain time.
  • the NW can further indicate which beam within the beam group is applicable for the reception of corresponding target channels/RS after a certain time, while others are not.
  • the UE will apply the first/last beam group, or the beam group associated with the largest measured beam quality (or with the lowest/highest ID) by default.
  • an additional beam selection field can be introduced in the DCI signaling to indicate one of the beam group within the beam pool for the reception of target channels/RS, as shown in FIG. 3.
  • the NW can further indicate which beam within the beam group is applicable for the reception of corresponding target channels/RS after a certain time, while others are not.
  • the UE can not only perform measurement report based on the configured RS resource set, but also predict the beam quality of future time instances based on its perception of the environment and utilization of advanced signal processing algorithm such as artificial intelligence and machine learning. That is, the beam (represented by a beam ID or RS resource ID or TCI state ID) and/or associated beam quality of multiple time instances can be reported in one reporting instance from UE to NW.
  • T the number of future time instances to be reported/predicted
  • K the number of reported beam (or beam group) at each future time instance
  • the case of beam group is similar with that of beam and thus is omitted in the following.
  • an additional beam selection field can be introduced in the DCI signaling to indicate one beam within a beam pool for the reception of target channels/RS at each future time instance.
  • the beam pool is a combination of MAC CE activated beams (or part of or none of MAC CE activated beams) and all reported candidate beams (or part of or none of reported candidate beams) in the latest reporting instance.
  • the bit width for the new DCI field maybe i.e.,
  • an additional beam selection field can be introduced in the DCI signaling to indicate one beam within a beam pool for the reception of target channels/RS at each future time instance.
  • the beam pool is a combination of MAC CE activated beams (or part of or none of MAC CE activated beams) and reported candidate beams (or part of or none of reported candidate beams) corresponding to each time instance in the latest reporting instance.
  • the bit width for the new DCI field maybe
  • an additional beam selection field can be introduced in the DCI signaling to indicate one beam within a beam pool for the reception of target channels/RS at each future time instance.
  • the beam pool is a combination of MAC CE activated beams (or part of or none of MAC CE activated beams) and all reported candidate beams (or part of or none of reported candidate beams) .
  • the bit width for the new DCI field maybe
  • the beam or beam group associated with the latest report is directly applied without additional beam activation/indication from the NW, for providing a reference signal for the quasi co-location for DM-RS of PDSCH and DM-RS of PDCCH in a CC, for CSI-RS, and to provide a reference, if applicable, for determining a UL TX spatial filter for dynamic-grant and configured-grant based PUSCH and PUCCH resource in a CC, and SRS.
  • a default rule is provided for the determination of beam switching or an additional beam selection field is introduced in the DCI signaling to indicate one beam from the beam pool. Enhancements to UE-initiated beam switching for MTRP scenarios and multiple future time instances are also considered to further reduce the signaling overhead for beam indication.
  • FIG. 4 is an exemplary flowchart for performing a transmission or a reception by a wireless device.
  • Operation 402 includes transmitting, by a wireless device, a beam state.
  • Operation 404 includes performing, by the wireless device and based on the beam state, a transmission or a reception of a data burst without a beam activation or a beam indication from a network node.
  • the method can be implemented according to Embodiment 1.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • the beam state includes a transmission configuration indication (TCI) state identifier (ID) , where the TCI state ID is used to receive a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , or a channel state information reference signal (CSI-RS) , or determine a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • TCI transmission configuration indication
  • ID transmission configuration indication
  • ID transmission configuration indication
  • PUCCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • CSI-RS channel state information reference signal
  • the beam state includes a reference signal (RS) resource identifier (ID) , where the RS resource ID provides a reference for a quasi co-location (QCL) for a demodulation RS (DM-RS) port of a physical downlink control channel (PDCCH) , a DM-RS port of a physical downlink shared channel (PDSCH) , or a channel state information RS (CSI- RS) port of a CSI-RS resource of a serving cell with respect to a QCL-type set to “type A, ” “type B, ” “type C, ” or “type D, ” or provides a reference for determining a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • RS reference signal
  • ID reference signal resource identifier
  • the RS resource ID provides a reference for a
  • transmitting the beam state includes transmitting a latest measurement result report associated with the beam state.
  • transmitting the beam state includes determining, by the wireless device, a reference signal (RS) resource identifier (ID) or a transmission configuration indication (TCI) state ID from a configured RS resource set for channel measurement or a configured TCI state pool.
  • Transmitting the beam state further includes transmitting, by the wireless device, a report of the RS resource ID or the TCI state ID and a measured channel quality associated with the RS resource ID or the TCI state ID to the network node.
  • RS reference signal
  • ID resource identifier
  • TCI transmission configuration indication
  • the method further includes receiving, by the wireless device, a network response within a pre-configured monitoring window on a dedicated physical downlink control channel (PDCCH) or dedicated downlink control information (DCI) .
  • the method further includes determining, by the wireless device and based on the network response, that a beam associated with the beam state is applicable for a transmission or a reception of a data burst.
  • PDCCH physical downlink control channel
  • DCI dedicated downlink control information
  • FIG. 5 is an exemplary flowchart for selecting a beam state.
  • Operation 502 includes transmitting, by a wireless device, a number of beam states in a latest measurement result report.
  • Operation 504 includes performing, by the wireless device and based on the number of beam states in the latest measurement result report, a transmission or a reception of a data burst on a beam state selected from the number of beam states in the latest measurement result report or a number of beam states activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • the method can be implemented according to Embodiment 2.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • FIG. 6 is an exemplary flowchart for selecting a beam state group.
  • Operation 602 includes transmitting, by a wireless device, a number of beam states, where the number of beam states belong to a number of beam state groups in a latest measurement result report.
  • Operation 604 includes performing, by the wireless device and based on the number of beam state groups in the latest measurement result report, a transmission or a reception of a data burst on a beam state group selected from the number of beam state groups in the latest measurement result report or a number of beam state groups activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • the method can be implemented according to Embodiment 3.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • a beam state or a beam state group of the number of beam states or beam state groups in the latest measurement result report includes a transmission configuration indication (TCI) state identifier (ID) , where the TCI state ID is used to receive a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , or a channel state information reference signal (CSI-RS) , or determine a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • TCI transmission configuration indication
  • ID transmission configuration indication
  • ID transmission configuration indication
  • CSI-RS channel state information reference signal
  • a beam state or a beam state group of the number of beam states or beam state groups in the latest measurement result report includes a reference signal (RS) resource identifier (ID) , where the RS resource ID provides a reference for a quasi co-location (QCL) for a demodulation RS (DM-RS) port of a physical downlink control channel (PDCCH) , a DM-RS port of a physical downlink shared channel (PDSCH) , or a channel state information RS (CSI-RS) port of a CSI-RS resource of a serving cell with respect to a QCL-type set to “type A, ” “type B, ” “type C, ” or “type D, ” or provides a reference for determining a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • RS reference signal
  • the beam state or the beam state group selected is associated with at least one of the following parameters associated with the latest measurement result report: a first reference signal (RS) resource identifier (ID) or a first RS resource group ID; a first transmission configuration indication (TCI) state ID or a first TCI state group ID; a last RS resource ID or a last RS resource group ID; a last TCI state ID or a last TCI state group ID; a RS resource ID, a RS resource group ID, a TCI state ID, or a TCI state group ID associated with a highest measured channel quality; a lowest RS resource ID or a lowest RS resource group ID; a lowest TCI state ID or a lowest TCI state group ID; a highest RS resource ID or a highest RS resource group ID; or a highest TCI state ID or a highest TCI state group ID.
  • RS reference signal
  • ID resource identifier
  • TCI transmission configuration indication
  • the beam state or the beam state group selected is associated with downlink control information (DCI) indicating a beam state identifier (ID) or a beam state group ID from a beam state pool or a beam state group pool.
  • DCI downlink control information
  • the beam state pool or the beam state group pool includes all or a portion of the number of beam states or beam state groups in the latest measurement result report.
  • the DCI includes a beam state or a beam state group selection field with a bit width of where is the ceiling function, and where N is the total number of the number of beam states or beam state groups in the latest measurement result report.
  • a codepoint in the beam state or the beam state group selection field points to a beam state or a beam state group of the number of beam states or beam state groups in the latest measurement result report.
  • the beam state pool or the beam state group pool includes all or a portion of the number of beam states or beam state groups activated by MAC CEs and all or a portion of the number of beam states or beam state groups in the latest measurement result report.
  • the DCI includes a beam state or a beam state group selection field with a bit width of where is the ceiling function, where M is the total number of the number of beam states or beam state groups activated by MAC CEs, and where N is the total number of the number of beam states or beam state groups in the latest measurement result report.
  • a codepoint in the beam state or the beam state group selection field points to a beam state or a beam state group of the number of beam states or beam state groups activated by MAC CEs or a beam state or a beam state group of the number of beam states or beam state groups in the latest measurement result report.
  • FIG. 7 is an exemplary flowchart for determining beam states based on a latest measurement result report.
  • Operation 702 includes determining, by a wireless device and based on a beam state in a latest measurement result report, a number of beam states.
  • Operation 704 includes transmitting, by the wireless device, the number of beam states, where the number of beam states are used for a number of transmission or reception instances.
  • the method can be implemented according to Embodiment 4.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • each beam state of the number of beam states is used for one transmission or reception instance, or more than one beam state of the number of beam states is used for each transmission or reception instance.
  • the method further includes receiving, by the wireless device, downlink control information (DCI) including a beam state selection field, where the beam state selection field indicates a beam state of the number of beam states determined by the wireless device for each transmission or reception instance, or where the beam state selection field indicates a beam state of the number of beam states determined by the wireless device in each measurement result report.
  • DCI downlink control information
  • FIG. 8 is an exemplary flowchart for transmitting a network response.
  • Operation 802 includes receiving, by a network node, a beam state.
  • Operation 804 includes transmitting, by the network node, a network response associated with the beam state.
  • Operation 806 includes performing, by the network node and based on the network response, a transmission or a reception of a data burst without transmitting a beam activation or a beam indication to a wireless device.
  • the method can be implemented according to Embodiment 1.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • the beam state includes a transmission configuration indication (TCI) state identifier (ID) , where the TCI state ID is used for the wireless device to receive a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , or a channel state information RS (CSI-RS) , or for the wireless device to determine a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • TCI transmission configuration indication
  • ID transmission configuration indication
  • ID transmission configuration indication
  • CSI-RS channel state information RS
  • the beam state includes a reference signal (RS) resource identifier (ID) , where the RS resource ID provides a reference for a quasi co-location (QCL) for a demodulation RS (DM-RS) port of a physical downlink control channel (PDCCH) , a DM-RS port of a physical downlink shared channel (PDSCH) , or a channel state information RS (CSI-RS) port of a CSI-RS resource of a serving cell with respect to a QCL-type set to “type A, ” “type B, ” “type C, ” or “type D, ” or provides a reference for determining a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • RS reference signal
  • ID reference signal resource identifier
  • the RS resource ID provides a reference for a quasi
  • receiving the beam state includes receiving a latest measurement result report associated with the beam state.
  • receiving the beam state includes transmitting, by the network node, a reference signal (RS) resource identifier (ID) or a transmission configuration indication (TCI) state ID in a configured RS resource set for channel measurement or a configured TCI state pool.
  • Receiving the beam state further includes receiving, by the network node, a report of the RS resource ID or the TCI state ID and a measured channel quality associated with the RS resource ID or the TCI state ID from the wireless device.
  • RS reference signal
  • ID resource identifier
  • TCI transmission configuration indication
  • transmitting the network response includes transmitting, by the network node, the network response within a pre-configured monitoring window on a dedicated physical downlink control channel (PDCCH) or dedicated downlink control information (DCI) , where the wireless device determines, based on the network response, that a beam associated with the beam state is applicable for a transmission or a reception of a data burst.
  • PDCCH physical downlink control channel
  • DCI dedicated downlink control information
  • FIG. 9 is an exemplary flowchart for performing a transmission or a reception by a network node based on a selected beam state.
  • Operation 902 includes receiving, by a network node, a number of beam states in a latest measurement result report.
  • Operation 904 includes performing, by the network node and based on the number of beam states in the latest measurement result report, a transmission or a reception of a data burst on a beam state selected from the number of beam states in the latest measurement result report or a number of beam states activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • the method can be implemented according to Embodiment 2.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • FIG. 10 is an exemplary flowchart for performing a transmission or a reception by a network node based on a selected beam state group.
  • Operation 1002 includes receiving, by a network node, a number of beam states, where the number of beam states belong to a number of beam state groups in a latest measurement result report.
  • Operation 1004 includes performing, by the network node and based on the number of beam state groups in the latest measurement result report, a transmission or a reception of a data burst on a beam state group selected from the number of beam state groups in the latest measurement result report or a number of beam state groups activated by media access control (MAC) control elements (CEs) .
  • MAC media access control
  • CEs media access control elements
  • the method can be implemented according to Embodiment 3.
  • performing further steps of the method can be based on a better system performance than a legacy protocol.
  • a beam state or a beam state group of the number of beam states or beam state groups in the latest measurement result report includes a transmission configuration indication (TCI) state identifier (ID) , where the TCI state ID is used for a wireless device to receive a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , or a channel state information reference signal (CSI-RS) , or for the wireless device to determine a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • TCI transmission configuration indication
  • ID transmission configuration indication
  • ID transmission configuration indication
  • TCI state ID is used for a wireless device to receive a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , or a channel state information reference signal (CSI-RS) , or for the wireless device to determine
  • a beam state or a beam state group of the number of beam states or beam state groups in the latest measurement result report includes a reference signal (RS) resource identifier (ID) , where the RS resource ID provides a reference for a quasi co-location (QCL) for a demodulation RS (DM-RS) port of a physical downlink control channel (PDCCH) , a DM-RS port of a physical downlink shared channel (PDSCH) , or a channel state information RS (CSI-RS) port of a CSI-RS resource of a serving cell with respect to a QCL-type set to “type A, ” “type B, ” “type C, ” or “type D, ” or provides a reference for determining a transmit (TX) spatial filter for a dynamic grant or a configured grant based on a physical uplink control channel (PUCCH) , a physical uplink shared channel (PUSCH) , or a sounding reference signal (SRS) .
  • RS reference signal
  • the beam state or the beam state group selected is associated with at least one of the following parameters associated with the latest measurement result report: a first reference signal (RS) resource identifier (ID) or a first RS resource group ID; a first transmission configuration indication (TCI) state ID or a first TCI state group ID; a last RS resource ID or a last RS resource group ID; a last TCI state ID or a last TCI state group ID; a RS resource ID, a RS resource group ID, a TCI state ID, or a TCI state group ID associated with a highest measured channel quality; a lowest RS resource ID or a lowest RS resource group ID; a lowest TCI state ID or a lowest TCI state group ID; a highest RS resource ID or a highest RS resource group ID; or a highest TCI state ID or a highest TCI state group ID.
  • RS reference signal
  • ID resource identifier
  • TCI transmission configuration indication
  • the beam state or the beam state group selected is associated with downlink control information (DCI) indicating a beam state identifier (ID) or a beam state group ID from a beam state pool or a beam state group pool.
  • DCI downlink control information
  • the beam state pool or the beam state group pool includes all or a portion of the number of beam states or beam state groups in the latest measurement result report.
  • the beam state pool or the beam state group pool includes all or a portion of the number of beam states or beam state groups activated by MAC CEs and all or a portion of the number of beam states or beam state groups in the latest measurement result report.
  • FIG. 11 shows an exemplary block diagram of a hardware platform 1100 that may be a part of a network node (e.g., base station, transmission parameter, or TRP) or a wireless device (e.g., a user equipment (UE) ) .
  • the hardware platform 1100 includes at least one processor 1110 and a memory 1105 having instructions stored thereupon. The instructions upon execution by the processor 1110 configure the hardware platform 1100 to perform the operations described in FIGS. 1 to 10 and in the various embodiments described in this patent document.
  • the transmitter 1115 transmits or sends information or data to another device.
  • a network node transmitter can send a message to a user equipment.
  • the receiver 1120 receives information or data transmitted or sent by another device.
  • a user equipment can receive a message from a network note.
  • a UE, a wireless device, or a network node, as described in the present document may be implemented using the hardware platform 1100.
  • FIG. 12 shows an example of a wireless communication system (e.g., a 5G or NR cellular network) that includes a base station 1220 and one or more user equipment (UE) 1211, 1212, and 1213.
  • the UEs access the BS (e.g., the network, the TRP) using a communication link to the network (sometimes called uplink direction, as depicted by dashed arrows 1231, 1232, 1233) , which then enables subsequent communication (e.g., shown in the direction from the network to the UEs, sometimes called downlink direction, shown by arrows 1241, 1242, 1243) from the BS to the UEs.
  • BS e.g., the network, the TRP
  • subsequent communication e.g., shown in the direction from the network to the UEs, sometimes called downlink direction, shown by arrows 1241, 1242, 1243
  • the BS send information to the UEs (sometimes called downlink direction, as depicted by arrows 1241, 1242, 1243) , which then enables subsequent communication (e.g., shown in the direction from the UEs to the BS, sometimes called uplink direction, shown by dashed arrows 1231, 1232, 1233) from the UEs to the BS.
  • the UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, an Internet of Things (IoT) device, and so on.
  • M2M machine to machine
  • IoT Internet of Things
  • the UEs described in the present document may be communicatively coupled to the base station 1220 depicted in FIG. 12.
  • the present patent document discloses methods of performing a transmission or a reception of a data burst without a beam activation or a beam indication from a network node. More specifically, the transmission or the reception of the data burst can be performed on a beam state selected from a number of beam states in a latest measurement result report or a number of beam states activated by media access control (MAC) control elements (CEs) .
  • the disclosed methods can reduce latency because the methods reduce delay from the network activation or indication.
  • a computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media.
  • program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types.
  • Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
  • a hardware circuit implementation can include discrete analog and/or digital components that are, for example, integrated as part of a printed circuit board.
  • the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and/or as a Field Programmable Gate Array (FPGA) device.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • DSP digital signal processor
  • the various components or sub-components within each module may be implemented in software, hardware, or firmware.
  • the connectivity between the modules and/or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.

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Abstract

L'invention concerne des systèmes, des procédés et un appareil de communication sans fil. Un procédé de communication sans fil comprend la transmission, par un dispositif sans fil, d'un état de faisceau. Le procédé comprend en outre la réalisation, par le dispositif sans fil et sur la base de l'état de faisceau, d'une transmission ou d'une réception d'une rafale de données sans activation de faisceau ou indication de faisceau provenant d'un nœud de réseau. Dans certains modes de réalisation, la transmission ou la réception de la rafale de données est sur un état de faisceau sélectionné parmi un nombre d'états de faisceau dans un dernier rapport de résultats de mesure ou un nombre d'états de faisceau activés par des éléments de commande (CE) de commande d'accès au support (MAC).
PCT/CN2023/129881 2023-11-06 2023-11-06 Commutation de faisceau initiée par un équipement utilisateur à faible latence Pending WO2025097272A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023019544A1 (fr) * 2021-08-20 2023-02-23 Qualcomm Incorporated Signalisation de contrôle d'accès au support déclenchant une mise à jour d'état d'indicateur de configuration de transmission et mesure ou rapport de faisceau
CN115811390A (zh) * 2021-09-13 2023-03-17 华硕电脑股份有限公司 无线通信系统中用于波束选择和报告的方法和设备
US20230164614A1 (en) * 2020-07-09 2023-05-25 Vivo Mobile Communication Co., Ltd. Method and apparatus for sending beam report, method and apparatus for receiving beam report, and electronic device
US20230164607A1 (en) * 2020-02-11 2023-05-25 Nokia Technologies Oy Methods and apparatuses for beam management reporting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230164607A1 (en) * 2020-02-11 2023-05-25 Nokia Technologies Oy Methods and apparatuses for beam management reporting
US20230164614A1 (en) * 2020-07-09 2023-05-25 Vivo Mobile Communication Co., Ltd. Method and apparatus for sending beam report, method and apparatus for receiving beam report, and electronic device
WO2023019544A1 (fr) * 2021-08-20 2023-02-23 Qualcomm Incorporated Signalisation de contrôle d'accès au support déclenchant une mise à jour d'état d'indicateur de configuration de transmission et mesure ou rapport de faisceau
CN115811390A (zh) * 2021-09-13 2023-03-17 华硕电脑股份有限公司 无线通信系统中用于波束选择和报告的方法和设备

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