WO2023152690A1 - Procédés et appareil de détermination d'occasions de canal physique de contrôle descendant (pdcch) à partir d'états d'indicateur de configuration de transmission (tci) multiples - Google Patents

Procédés et appareil de détermination d'occasions de canal physique de contrôle descendant (pdcch) à partir d'états d'indicateur de configuration de transmission (tci) multiples Download PDF

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Publication number
WO2023152690A1
WO2023152690A1 PCT/IB2023/051190 IB2023051190W WO2023152690A1 WO 2023152690 A1 WO2023152690 A1 WO 2023152690A1 IB 2023051190 W IB2023051190 W IB 2023051190W WO 2023152690 A1 WO2023152690 A1 WO 2023152690A1
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WIPO (PCT)
Prior art keywords
terminal device
search space
tci
states
pdcch
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PCT/IB2023/051190
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English (en)
Inventor
Li Guo
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Guangdong Oppo Mobile Telecommunications Corp., Ltd.
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Application filed by Guangdong Oppo Mobile Telecommunications Corp., Ltd. filed Critical Guangdong Oppo Mobile Telecommunications Corp., Ltd.
Publication of WO2023152690A1 publication Critical patent/WO2023152690A1/fr

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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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04B7/06968—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping using quasi-colocation [QCL] between signals
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • 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

Definitions

  • the present disclosure relates to Physical Downlink Control Channel (PDCCH) occasion determination. More specifically, systems and methods for determining PDCCH monitoring occasions from multiple Transmission Configuration Indicator (TCI) states are provided.
  • PCI Transmission Configuration Indicator
  • New Radio (NR) and fifth generation (5G) communication systems support PDCCH transmission.
  • user equipment e.g., UE
  • CORESETs Control Resource Sets
  • Each of the CORESETs defines some resource(s) in a frequency domain.
  • the UE is also configured with one or more search spaces and each search space is associated with a CORSET.
  • the search space can provide the configuration of time and frequency for PDCCH transmission and monitoring occasion for the UE.
  • a special CORESET is called “CORESET#0.”
  • a base station e.g., gNB
  • MAC CE Media Access Control Control Element
  • CSI-RS Channel State Information Reference Signal
  • SS Synchronization Signal
  • PBCH Physical Broadcast Channel
  • the UE is requested to derive the configuration of the search space associated with “CORESET#0” based on this SS/PBCH block.
  • NR/5G also supports a link recovery function. During a link recovery operation, after a link failure reporting is successfully received by the base station 101 , the UE can switch its spatial domain filter applied on PLISCH, PLICCH and SRS (Sounding Reference Signal) to a default transmit filter.
  • drawbacks of the foregoing methods include, for example, in some cases, the “CORESET#0” can be indicated with two TCI states. In such cases, how to determine the configuration of search space associated with CORESET#0 is not clear. Another drawback is that power control parameters for PUSCH/PUCCH/SRS after a link recovery have not been determined. Therefore, improved systems and methods that can address the foregoing issues are desirable and beneficial.
  • the present disclosure is related to systems and methods for determining PDCCH monitoring occasions when more than one TCI states are indicated (e.g., to a Control Resource Set, CORESET).
  • the present systems and methods provide solutions for determining uplink power control parameters for Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH) and Sounding Reference Signal (SRS) after a link recovery in a unified TCI framework.
  • the present disclosure also provides solutions for transmitting acknowledgement to a beam reporting instance.
  • a terminal device e.g., UE
  • a base station e.g., gNB
  • the present systems and methods enables effective determination of PDCCH monitoring occasions when a special CORESET (“CORESET#0”) is configured with two TCI states.
  • the present method can be implemented by a tangible, non-transitory, computer-readable medium having processor instructions stored thereon that, when executed by one or more processors, cause the one or more processors to perform one or more aspects/features of the method described herein.
  • the present method can be implemented by a system comprising a computer processor and a non-transitory computer-readable storage medium storing instructions that when executed by the computer processor cause the computer processor to perform one or more actions of the method described herein.
  • Fig. 1 is a schematic diagram of a wireless communication system in accordance with one or more implementations of the present disclosure.
  • Fig. 2 is a schematic block diagram of a terminal device in accordance with one or more implementations of the present disclosure.
  • FIG. 3 is a flowchart of a method in accordance with one or more implementations of the present disclosure.
  • Fig. 1 is a schematic diagram of a wireless communication system 100 in accordance with one or more implementations of the present disclosure.
  • the wireless communication system 100 can implement the methods discussed herein for beam failure detection and beam/link recovery.
  • the wireless communications system 100 includes a network device (or base station/cell) 101.
  • Examples of the network device 101 include a base transceiver station (Base Transceiver Station, BTS), a NodeB (NodeB, NB), an evolved Node B (eNB or eNodeB), a Next Generation NodeB (gNB or gNode B), a Wireless Fidelity (Wi-Fi) access point (AP), etc.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • eNB or eNodeB evolved Node B
  • gNB or gNode B Next Generation NodeB
  • Wi-Fi Wireless Fidelity
  • the network device 101 can include a relay station, an access point, an in-vehicle device, a wearable device, and the like.
  • the network device 101 can include wireless connection devices for communication networks such as: a Global System for Mobile Communications (GSM) network, a Code Division Multiple Access (CDMA) network, a Wideband CDMA (WCDMA) network, an LTE network, a cloud radio access network (Cloud Radio Access Network, CRAN), an Institute of Electrical and Electronics Engineers (IEEE) 802.11-based network (e.g., a Wi-Fi network), an Internet of Things (loT) network, a device-to-device (D2D) network, a next-generation network (e.g., a 5G network), a future evolved public land mobile network (Public Land Mobile Network, PLMN), or the like.
  • a 5G system or network can be referred to as an NR system or network.
  • the wireless communications system 100 also includes a terminal device 103.
  • the terminal device 103 can be an end-user device configured to facilitate wireless communication.
  • the terminal device 103 can be configured to wirelessly connect to the network device 101 (via, e.g., via a wireless channel 105) according to one or more corresponding communication protocols/standards.
  • the terminal device 103 may be mobile or fixed.
  • the terminal device 103 can be a user equipment (UE), an access terminal, a user unit, a user station, a mobile site, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communications device, a user agent, or a user apparatus.
  • UE user equipment
  • Examples of the terminal device 103 include a modem, a cellular phone, a smartphone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device having a wireless communication function, a computing device or another processing device connected to a wireless modem, an in-vehicle device, a wearable device, an Internet- of-Things (loT) device, a device used in a 5G network, a device used in a public land mobile network, or the like.
  • Fig. 1 illustrates only one network device 101 and one terminal device 103 in the wireless communications system 100.
  • the wireless communications system 100 can include additional network device 101 and/or terminal device 103.
  • the base station 101 can use an MAC/CE activation command to indicate two TCI states for CORESET with index 0.
  • the first indicated TCI state can include a CSI-RS resource which is quasi-co-located with a SS/PBCH block.
  • the terminal device 103 can then determine the PDCCH monitoring occasion associated with the SS/PBCH block.
  • the second indicated TCI state can include a CSI- RS resource which is quasi-co-located with a SS/PBCH block.
  • the terminal device 103 can then determine the PDCCH monitoring occasion associated with the SS/PBCH block.
  • the one of the indicated TCI states includes a CSI-RS resource which is quasi-co-located with a SS/PBCH block.
  • the terminal device 103 can then determine the PDCCH monitoring occasion associated with the SS/PBCH block. In this example, the terminal device 103 can expect that only one of the indicated TCI states has CSI-RS resource that is quasi-co-located with the SS/PBCH block.
  • the one of the indicated TCI states includes a CSI-RS resource which is quasi-co-located with a SS/PBCH block.
  • the terminal device 103 can then determine the PDCCH monitoring occasion associated with the SS/PBCH block. In this example, the terminal device 103 can expect that the indicated TCI states have CSI-RS resources that are quasi-co-located with the same SS/PBCH block.
  • the terminal device 103 can determine a monitoring occasions for PDCCH candidates of the TypeO/OA/2- PDCCH CSS set.
  • the terminal device 103 can be provided with a Cell Radio Network Temporary Identity (C-RNTI).
  • C-RNTI Cell Radio Network Temporary Identity
  • the terminal device 103 can monitor the PDCCH candidates only at monitoring occasions associated with a SS/PBCH block, where the SS/PBCH block is determined by the most recent of the following: (1) an MAC CE activation command indicating a (target) TCI state of an active Band Width Part (BWP) that includes a CORESET with index “0” where the TCI-state includes a CSI-RS which is quasi-co- located with the SS/PBCH block, or (2) a random-access procedure that is not initiated by a PDCCH order that triggers a contention-free random access procedure.
  • BWP Band Width Part
  • the MAC CE activation command can indicate two TCI states of the active BWP that includes a CORESET with index “0,” where a first TCI-state includes a CSI-RS which is quasi-co-located with the SS/PBCH block.
  • the MAC CE activation command can indicate two TCI states of the active BWP that includes a CORESET with index “0,” where a second TCI-state includes a CSI-RS which is quasi-co-located with the SS/PBCH block.
  • the MAC CE activation command can indicate two TCI states of the active BWP that includes a CORESET with index “0,” where one of these two TCI-states includes a CSI-RS which is quasi-co-located with the SS/PBCH block.
  • the MAC CE activation command can indicate two TCI states of the active BWP that includes a CORESET with index “0,” where at least one of these two TCI-states includes a CSI-RS which is quasi-co- located with the SS/PBCH block.
  • the terminal device 103 can report a beam measurement though uplink transmission. When the base station 101 receives a beam measurement report (e.g., correctly received without an error message), the base station 101 can send an acknowledgement for the beam measurement report to the terminal device 103.
  • the terminal device 103 can send a first beam measurement report to the base station 101.
  • the base station 101 receives the first beam measurement report check if the first beam measurement report is received correctly. If so, the base station 101 can send an acknowledgement to the terminal device 103 to notify the terminal device 103 that the first beam measurement reporting is received correctly.
  • the acknowledgement can be a TCI state indication command.
  • the base station 101 can send a Downlink Control Information (DCI) that indicates a TCI state.
  • DCI Downlink Control Information
  • the acknowledgement can be a TCI state indication command with a special codepoint.
  • the base station 101 can send a DCI with its TCI field set to a special value.
  • the special values can be “0s” or “1s” in all of the TCI field.
  • the acknowledgement can be a MAC CE command.
  • the acknowledgement can be a DCI transmission in a particular PDCCH.
  • a search space can be dedicated for this purpose. Detecting a DCI in that search space can be considered as the foregoing acknowledgement.
  • the terminal device 103 can report multiple UE capability value sets. In each value set, the terminal device 103 can report a maximum number of SRS ports. The terminal device 103 can be configured to measure a set of CSI-RS resources and/or SS/PBCH blocks. The terminal device 103 can be requested to report “K” CRIs or SSBRIs (SS/PBCH block resource indicator) in a first beam reporting instance.
  • K CRIs or SSBRIs (SS/PBCH block resource indicator) in a first beam reporting instance.
  • the terminal device 103 can also report its corresponding L1-RSRP measurement or L1-SINR measurement in the first beam reporting instance. For each of the reported CRIs or SSBRIs, the terminal device 103 can also report one index of UE capability value set in the first beam reporting instance. The terminal device 103 can report the first beam reporting instance at slot “n.” After the terminal device 103 sends the first beam reporting instance, the terminal device 103 can expect to receive an acknowledgement from the base station 101 within a time window.
  • the foregoing acknowledgement can be a TCI state activation MAC CE command.
  • one of the activated TCI states includes one reported CRI or SSBRI as a reference for its uplink transmission.
  • the foregoing acknowledgement can be a TCI state activation MAC CE command and some TCI state in the activation MAC CE can include one CSI-RS or SSB corresponding to one of the reported CRIs or SSBRIs contained in the beam reporting instance.
  • the foregoing acknowledgement can be a TCI state activation MAC CE command that contains a bit filed to indicate that this MAC CE is an acknowledge (“ACK”) to the first beam reporting instance.
  • ACK acknowledge
  • the foregoing acknowledgment can be a MAC CE command that contains a bit filed to indicate that this MAC CE is ACK to the first beam reporting instance.
  • the foregoing acknowledgment can be a DCI indicating TCI state(s).
  • the acknowledgment can be a DCI indicating a TCI state that includes one CSI-RS resource or SSB corresponding one of the reported CRIs or SSBRIs contained in the first beam reporting instance.
  • the foregoing acknowledgment can be a DCI with a TCI bit field set to a special codepoint.
  • the TCI bit field can be set as “0” or “1.”
  • the foregoing acknowledgment can be a DCI detected from a dedicated PDCCH.
  • the foregoing acknowledgement can be a DCI format with CRC (“Cyclic Redundancy Check”) scrambled by C-RNTI or MCS-C-RNTI (Modulation and Coding Scheme Cell RNTI) detected from the PDCCH in a search space provided by “recoverySearchSpaceld.”
  • the terminal device 103 can monitor the PDCCH in a search space set provided by “recoverySearchSpaceld” for detection of a DCI format with CRC scrambled by C- RNTI or MCS-C-RNTI starting from a time after the terminal device 103 sends the first beam reporting instance (e.g., with a time window).
  • the terminal device 103 can detect such a DCI within the time window, the terminal device 103 can assume the first beam reporting is received correctly by the base station 101.
  • the terminal device 103 can be configured with a beam failure recovery.
  • the terminal device 103 detects a beam failure and when the beam failure happens, the terminal device 103 reports a beam failure recovery request message to the base station 101 .
  • the beam failure recovery request message can be sent in the latest PRACH (Physical Random Access Channel) transmission.
  • the beam failure recovery request message can include a Reference Signal (RS) index “q n ew.”
  • RS Reference Signal
  • the terminal device 103 can also reset its uplink power control parameters for the PLISCH, PLICCH and SRS.
  • the terminal device 103 can be configured with a list of TCI states. Each TCI state can be associated with a first set of power control parameters (including P0, alpha, closed loop index, etc.) for the PLISCH, a second set of power control parameters (including P0, closed loop index, etc.) for the PLISCH and a third set of power control parameters (including P0, alpha, closed loop index, etc.) for the SRS.
  • Each TCI state can be associated with a pathloss RS that can be CSI-RS or SSB.
  • the terminal device 103 can be provided with a first default set of power control parameters for PLISCH (Physical Uplink Shared Channel), a second default set of power control parameters for PUCCH (Physical Uplink Control Channel) and a third default set of power control parameters for SRS.
  • PLISCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • SRS Third default set of power control parameters for SRS.
  • the terminal device 103 can be requested to apply those default sets of power control parameter if the indicated TCI state is not associated with power control parameters.
  • the terminal device 103 can reset the uplink power control parameters for the PUSCH, PUCCH and SRS according one or more of the following examples.
  • [0050] [A] In one example, the terminal device 103 can reset the uplink power control parameters (P0, alpha, closed loop index, etc.) for the PLISCH to the parameters contained in the first default set of power control parameters.
  • the terminal device 103 can reset the uplink power control parameters (P0, alpha, closed loop index, etc.) for the PLISCH to the parameters associated with one particular TCI state.
  • the terminal device 103 can reset the uplink power control parameters (P0, closed loop index, etc.) for the PLICCH to the parameters contained in the second default set of power control parameters.
  • the terminal device 103 can reset the uplink power control parameters (P0, closed loop index, etc.) for the PLICCH to the parameters associated with one particular TCI state.
  • the terminal device 103 can reset the uplink power control parameters (P0, alpha, closed loop index, etc.) for the SRS to the parameters contained in the third default set of power control parameters.
  • the terminal device 103 can reset the uplink power control parameters (P0, alpha, closed loop index, etc.) for the SRS to the parameters associated with one particular TCI state.
  • SRS can be a first RS and the first RS is the SS/PBCH selected for the last PRACH transmission or parameter “qnew” contained in a beam failure recovery request message.
  • the pathloss RS for PLISCH, PLICCH or SRS can be a second RS.
  • the second RS can be configured as a default PL RS for PUSCH, PUCCH or SRS, respectively.
  • the terminal device 103 can determine a spatial domain transmission (Tx) filter for PUSCH, PUCCH and SRS to be the one corresponding to the latest PRACH transmission or “qnew” contained in a beam failure recovery request message.
  • Tx spatial domain transmission
  • the terminal device 103 can determine power control parameters for PUSCH, PUCCH and SRS as described below.
  • the power control parameters for PLISCH can be power control parameters for PLISCH that are associated with a TCI state which includes a first RS as a reference for uplink spatial domain transmit filter.
  • the first RS is the SS/PBCH block index selected for the last PRACH transmission, or parameter “qnew” contained in a beam failure recovery request message.
  • the pathloss RS can be the PL RS associated with the TCI state.
  • the power control parameters for PLICCH can be power control parameters for PLICCH that are associated with a TCI state which includes a first RS as a reference for uplink spatial domain transmit filter.
  • the first RS is the SS/PBCH block index selected for the last PRACH transmission, or parameter “qnew” contained in the beam failure recovery request message.
  • the pathloss RS can be the PL RS associated with the TCI state.
  • the power control parameters for SRS can be power control parameters for SRS that are associated with a TCI state which includes a first RS as a reference for uplink spatial domain transmit filter.
  • the first RS is the SS/PBCH block index selected for the last PRACH transmission, or parameter “qnew” contained in beam failure recovery request message.
  • the pathloss RS is the PL RS associated with the TCI state.
  • Fig. 2 is a schematic block diagram of a terminal device 203 (e.g., which can implement the methods discussed herein) in accordance with one or more implementations of the present disclosure.
  • the terminal device 203 includes a processing unit 210 (e.g., a DSP, a CPU, a GPU, etc.) and a memory 220.
  • the processing unit 210 can be configured to implement instructions that correspond to the methods discussed herein and/or other aspects of the implementations described above.
  • the processor 210 in the implementations of this technology may be an integrated circuit chip and has a signal processing capability.
  • the steps in the foregoing method may be implemented by using an integrated logic circuit of hardware in the processor 210 or an instruction in the form of software.
  • the processor 210 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or another programmable logic device, a discrete gate or transistor logic device, and a discrete hardware component.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logic block diagrams disclosed in the implementations of this technology may be implemented or performed.
  • the general-purpose processor 210 may be a microprocessor, or the processor 210 may be alternatively any conventional processor or the like.
  • the steps in the methods disclosed with reference to the implementations of this technology may be directly performed or completed by a decoding processor implemented as hardware or performed or completed by using a combination of hardware and software modules in a decoding processor.
  • the software module may be located at a random-access memory, a flash memory, a readonly memory, a programmable read-only memory or an electrically erasable programmable memory, a register, or another mature storage medium in this field.
  • the storage medium is located at a memory 220, and the processor 210 reads information in the memory 220 and completes the steps in the foregoing methods in combination with the hardware thereof.
  • the memory 220 in the implementations of this technology may be a volatile memory or a non-volatile memory, or may include both a volatile memory and a non-volatile memory.
  • the non-volatile memory may be a readonly memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory.
  • the volatile memory may be a random-access memory (RAM) and is used as an external cache.
  • RAMs can be used, and are, for example, a static random-access memory (SRAM), a dynamic random-access memory (DRAM), a synchronous dynamic random-access memory (SDRAM), a double data rate synchronous dynamic random-access memory (DDR SDRAM), an enhanced synchronous dynamic random-access memory (ESDRAM), a synchronous link dynamic random-access memory (SLDRAM), and a direct Rambus randomaccess memory (DR RAM).
  • SRAM static random-access memory
  • DRAM dynamic random-access memory
  • SDRAM synchronous dynamic random-access memory
  • DDR SDRAM double data rate synchronous dynamic random-access memory
  • ESDRAM enhanced synchronous dynamic random-access memory
  • SLDRAM synchronous link dynamic random-access memory
  • DR RAM direct Rambus randomaccess memory
  • the memories in the systems and methods described herein are intended to include, but are not limited to, these memories and memories of any other suitable type.
  • the memory may be a non-transitory computer-readable storage medium that stores instructions capable of execution by a processor.
  • Fig. 3 is a flowchart of a method 300 in accordance with one or more implementations of the present disclosure.
  • the method 300 can be implemented by a system (such as the wireless communications system 100).
  • the method 300 may also be implemented by the terminal device 103.
  • the method 300 includes, at block 301 , receiving, by the terminal device, configuration information for a control resource set. At block 303, the method 300 continues by configuring the terminal device based on the control resource set, wherein the terminal device is configured with an index and a search space identification for the control resource set.
  • control resource set is a special control resource set “CORESET#0.”
  • index includes a value “0.”
  • the method 300 continues by receiving, by the terminal device, an activation command to indicate two or more transmission configuration indicator (TCI) states with the index.
  • TCI transmission configuration indicator
  • the method 300 continues by determining, by the terminal device, a physical downlink control channel (PDCCH) monitoring occasion in a search space identified by the search space identification based on at least one of the indicated TCI states.
  • the search space is identified by setting the search space identification to a value “0.”
  • the method 300 can include determining, by the terminal device, the PDCCH monitoring occasion based on a first indicated TCI state of the indicated TCI states.
  • the first indicated TCI state can include a channel state information reference signal (CSI-RS) resource, and the CSI- RS resource can be quasi-co-located with a synchronization signal (SS) I physical broadcast channel (PBCH) block.
  • CSI-RS channel state information reference signal
  • SS synchronization signal
  • PBCH physical broadcast channel
  • the method 300 can include determining, by the terminal device, the PDCCH monitoring occasion based on a second indicated TCI state of the indicated TCI states.
  • the second indicated TCI state can include a CSI-RS resource, and the CSI-RS resource can be quasi-co- located with a SS/PBCH block.
  • the search space identification is in a “PDCCH- ConfigCommon” field.
  • the control resource set includes a “Type0/0A/2-PDCCH” Common Search Space (CSS) set.
  • the activation command includes a Media Access Control (MAC) Control Element (CE) activation command.
  • the MAC CE activation command indicates a target TCI state of the two or more TCI states, and wherein the target TCI state indicates an active Band Width Part (BWP).
  • BWP Band Width Part
  • the MAC CE activation command indicates a target TCI state of the two or more TCI states, and the target TCI state indicates a CSI-RS resource quasi-co-located with a SS/PBCH block.
  • the method 300 can further include transmitting, by the terminal device, a beam measurement report to a base station. In some embodiments, the method 300 can further include receiving, by the terminal device, an acknowledgement from the base station indicating that the beam measurement report is received within a predetermined time window. If the beam measurement report is received within a predetermined time window, the base station can determine that the beam measurement report is received is correctly received.
  • the acknowledgement can be a TCI state indication command. In some embodiments, the acknowledgement can be MAC CE command.
  • the index can include a first value.
  • the search space can be identified by setting the search space identification to a second value.
  • the first value includes “0,” and the second value includes “0.”
  • Instructions for executing computer- or processorexecutable tasks can be stored in or on any suitable computer-readable medium, including hardware, firmware, ora combination of hardware and firmware. Instructions can be contained in any suitable memory device, including, for example, a flash drive and/or other suitable medium.
  • a and/or B may indicate the following three cases: A exists separately, both A and B exist, and B exists separately.

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Abstract

L'invention concerne des procédés et des systèmes de mesure et de commutation de faisceau. Dans certains modes de réalisation, le procédé comprend (1) la réception, par le dispositif terminal, d'informations de configuration pour un ensemble de ressources de commande ; (2) la configuration du dispositif terminal sur la base de l'ensemble de ressources de commande, le dispositif terminal étant configuré avec un indice et une identification d'espace de recherche pour l'ensemble de ressources de commande ; (3) la réception, par le dispositif terminal, d'une commande d'activation pour indiquer au moins deux états d'indicateur de configuration de transmission (TCI) avec l'indice ; et (4) la détermination, par le dispositif terminal, d'une occasion de surveillance de canal physique de contrôle descendant (PDCCH) dans un espace de recherche identifié par l'identification d'espace de recherche sur la base d'au moins l'un des états TCI indiqués.
PCT/IB2023/051190 2022-02-10 2023-02-10 Procédés et appareil de détermination d'occasions de canal physique de contrôle descendant (pdcch) à partir d'états d'indicateur de configuration de transmission (tci) multiples WO2023152690A1 (fr)

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Application Number Priority Date Filing Date Title
US202263308824P 2022-02-10 2022-02-10
US63/308,824 2022-02-10

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200100248A1 (en) * 2018-09-21 2020-03-26 Samsung Electronics Co., Ltd Method and apparatus for transmitting and receiving physical-layer channel in consideration of priority in wireless communication system
CN113615244A (zh) * 2019-03-27 2021-11-05 夏普株式会社 用户设备、基站和方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200100248A1 (en) * 2018-09-21 2020-03-26 Samsung Electronics Co., Ltd Method and apparatus for transmitting and receiving physical-layer channel in consideration of priority in wireless communication system
CN113615244A (zh) * 2019-03-27 2021-11-05 夏普株式会社 用户设备、基站和方法

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