WO2023130276A1 - Procédé et appareil de détermination de configuration de signal de référence disponible, ainsi que dispositif et support - Google Patents

Procédé et appareil de détermination de configuration de signal de référence disponible, ainsi que dispositif et support Download PDF

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Publication number
WO2023130276A1
WO2023130276A1 PCT/CN2022/070383 CN2022070383W WO2023130276A1 WO 2023130276 A1 WO2023130276 A1 WO 2023130276A1 CN 2022070383 W CN2022070383 W CN 2022070383W WO 2023130276 A1 WO2023130276 A1 WO 2023130276A1
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WIPO (PCT)
Prior art keywords
terminal
reference signal
available
edrx
indication information
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PCT/CN2022/070383
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English (en)
Chinese (zh)
Inventor
李海涛
胡奕
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Oppo广东移动通信有限公司
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Filing date
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2022/070383 priority Critical patent/WO2023130276A1/fr
Priority to CN202280073981.5A priority patent/CN118216110A/zh
Publication of WO2023130276A1 publication Critical patent/WO2023130276A1/fr

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    • 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

Definitions

  • the present application relates to the field of mobile communications, and in particular to a method, device, device and medium for determining an available reference signal configuration.
  • a terminal device in an idle/inactive state may adopt a discontinuous reception (Discontinuous Reception, DRX) mode when receiving paging.
  • DRX discontinuous Reception
  • the terminal device In each DRX cycle of the terminal device, the terminal device only monitors the Paging Radio Network Temporary Identifier (P-RNTI) scrambled physical signal when the corresponding paging occasion (Paging Occasion, PO) arrives.
  • P-RNTI Paging Radio Network Temporary Identifier
  • PDCCH Physical Downlink Control Channel
  • the terminal device does not need to monitor the PDCCH scrambled by the P-RNTI, so the receiver can be turned off to save power.
  • network equipment will use the channel status indication reference signal (Channel Status Indicator Reference Signal, CSI-RS) or tracking reference signal (Tracking Refernece Signal, TRS) used by the terminal equipment in the connection (active) state It is configured for idle/inactive terminal devices through system message broadcast.
  • CSI-RS Channel Status Indicator Reference Signal
  • TRS Tracking Refernece Signal
  • the CSI-RS configuration or TRS configuration broadcast by the network device is not always available to the terminal device. Specifically which ones are available, the network device will further indicate through the PDCCH, for example, through the Paging Early Indication (PEI) signal or the paging PDCCH to indicate which CSI-RS configuration or TRS configuration is available to the terminal device configured with DRX mode .
  • PEI Paging Early Indication
  • the network device broadcasts 4 sets of CSI-RS configurations, and further indicates that the 1st set and the 4th set of CSI-RS configurations are available through a PEI signal or a paging PDCCH.
  • the terminal uses the available CSI-RS configuration indicated in the PDCCH, so as to realize the synchronous operation before monitoring the paging. Since the CSI-RS resource has a shorter time-domain period than that configured by the Synchronization Signal Block (SSB), compared with downlink synchronization through the SSB, further energy saving of the terminal device can be achieved.
  • SSB Synchronization Signal Block
  • the above configuration process is performed for terminal equipment supporting DRX mode.
  • eDRX Extended Discontinuous Reception
  • the CSI-RS configuration or TRS configuration may have changed during an eDRX system message acquisition cycle , as to how to indicate which CSI-RS configurations and TRS configurations are available to the terminal equipment in eDRX mode, further discussion and research are needed.
  • Embodiments of the present application provide a method, device, device, and medium for determining an available reference signal configuration. Described technical scheme is as follows:
  • a method for determining an available reference signal configuration is provided, the method is performed by a first terminal configured with an eDRX mode, and the method includes:
  • the first terminal determines available reference signal configurations according to the first available indication information
  • the first available indication information is configured for a terminal configured with the eDRX mode.
  • a method for determining an available reference signal configuration is provided, the method is performed by a network device, and the method includes:
  • the network device configures the first available indication information to the first terminal
  • the first available indication information is used for the first terminal to determine an available reference signal configuration, the first terminal is configured with an eDRX mode, and the first available indication information is for a terminal configured with the eDRX mode configured.
  • a device for determining an available reference signal configuration is provided, the device is configured with an eDRX mode, and the device includes:
  • a determining module configured to determine an available reference signal configuration according to the first available indication information
  • the first available indication information is configured for a terminal configured with the eDRX mode.
  • a device for determining an available reference signal configuration comprising:
  • a configuration module configured to configure the first available indication information to the first terminal
  • the first available indication information is used for the first terminal to determine an available reference signal configuration, the first terminal is configured with an eDRX mode, and the first available indication information is for a terminal configured with the eDRX mode configured.
  • a terminal includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, the The processor is configured to load and execute the executable instructions to implement the method for determining available reference signal configurations as described in the above aspects.
  • a network device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, The processor is configured to load and execute the executable instructions to implement the method for determining an available reference signal configuration as described in the above aspects.
  • a computer-readable storage medium wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the above-mentioned aspects.
  • a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a computer device, it is used to realize the determination of the available reference in the above aspect.
  • the method of signal configuration is provided.
  • a computer program product or computer program comprising computer instructions stored in a computer-readable storage medium, a processor from said computer
  • the readable storage medium reads and executes the computer instructions, so that the computer device executes the method for determining an available reference signal configuration described in the above aspect.
  • the network device can notify the eDRX mode configuration.
  • Which of the terminal devices are available in their reserved reference signal configurations is convenient for configuring the energy saving of the terminal devices in the eDRX mode, and realizes separately indicating the available reference signal configurations for the terminal devices in the eDRX mode, which improves the flexibility of indicating the available reference signal configurations Spend.
  • FIG. 1 is a schematic diagram of a system message update cycle provided by an exemplary embodiment of the present application
  • FIG. 2 is a schematic diagram of a system architecture of a communication system provided by an exemplary embodiment of the present application
  • FIG. 3 is a flowchart of a method for determining available reference signal configurations provided by an exemplary embodiment of the present application
  • FIG. 4 is a flowchart of a method for determining an available reference signal configuration provided by an exemplary embodiment of the present application
  • FIG. 5 is a flowchart of a method for determining an available reference signal configuration provided by an exemplary embodiment of the present application
  • FIG. 6 is a schematic diagram of a process of sending a reference signal configuration provided by an exemplary embodiment of the present application.
  • FIG. 7 is a flowchart of a method for determining an available reference signal configuration provided by an exemplary embodiment of the present application.
  • FIG. 8 is a schematic diagram of a process of sending a reference signal configuration provided by an exemplary embodiment of the present application.
  • FIG. 9 is a block diagram of an apparatus for determining an available reference signal configuration provided by an exemplary embodiment of the present application.
  • FIG. 10 is a block diagram of an apparatus for determining an available reference signal configuration provided in an exemplary embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or “when” or “in response to a determination.”
  • 5G 5th Generation Partnership Project
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra Reliable Low Latency Communications
  • mMTC massive Machine Type of Communication
  • New air interface (New Radio, NR) can be deployed independently.
  • a new Radio Resource Control (RRC) state is defined, specifically RRC_INACTIVE state, which is different from the RRC idle (RRC_IDLE) state and the RRC active (RRC_ACTIVE) state.
  • RRC_INACTIVE RRC_INACTIVE
  • RRC_ACTIVE RRC active
  • each RRC state can reflect a network connection state, and describes how the network device and the terminal handle terminal movement, paging message and system information broadcast.
  • RRC_IDLE Mobility in the RRC_IDLE state refers to terminal-based cell selection reselection. Paging is initiated by the Core Network (CN) device, and the paging area is configured by the CN device. The base station does not have a terminal access stratum (Access Stratum, AS) context. There is no RRC connection.
  • CN Core Network
  • AS terminal access stratum
  • RRC_CONNECTED There is an RRC connection in the RRC_IDLE state, and the base station and the terminal have a terminal AS context. The location of the terminal determined by the network device is at the cell level. Mobility refers to mobility controlled by network devices. Unicast data can be transmitted between the terminal and the base station.
  • Mobility in the RRC_IDLE state refers to cell selection and reselection based on the terminal, there is a connection between CN and NR, the terminal AS context exists on a base station, and paging is triggered by the radio access network (Random Access Network, RAN) , the RAN-based paging area is managed by the RAN, and the location of the terminal determined by the network device is based on the paging area level of the RAN.
  • Radio access network Random Access Network
  • the main functions of the paging mechanism include two aspects.
  • One aspect is to make the network device paging the terminal device through a paging message (Paging Message) when the terminal device is in the RRC_IDLE state or the RRC_INACTIVE state.
  • the network equipment notifies the terminal equipment of system message changes or public early warning information such as earthquakes and tsunamis through Short Messages.
  • the paging channel includes a physical downlink control channel (Physical Downlink Control Channel, PDCCH) scrambled by a paging radio network temporary identifier (Paging Radio Network Temporary Identifier, P-RNTI), and a physical downlink control channel (PDCCH) scheduled by the PDCCH.
  • PDCCH Physical Downlink Control Channel
  • P-RNTI paging Radio Network Temporary Identifier
  • PDCCH physical downlink control channel scheduled by the PDCCH.
  • Downlink shared channel Physical Downlink Share Channel, PDSCH.
  • the above-mentioned paging message is transmitted in the PDSCH, and the above-mentioned short message occupies 8 bits and is transmitted in the PDCCH.
  • the terminal device can monitor the paging channel discontinuously, that is, the paging discontinuous Receive (Discontinuous Reception, DRX) mode.
  • the terminal device In the Paging DRX mode, the terminal device only needs to monitor the paging message during one paging occasion (Paging Occasion, PO) of each DRX cycle (cycle).
  • the PO includes a series of monitoring opportunities for the PDCCH, and optionally, the PO consists of multiple time slots.
  • PF refers to a radio frame (for example, the radio frame is 10 milliseconds).
  • the radio frame includes At least one PO, or, the radio frame includes a starting position of at least one PO.
  • the Paging DRX cycle is jointly determined by the common cycle in the system broadcast and the dedicated cycle configured in high-layer signaling (such as Non-Access Stratum (Non-Access Stratum, NAS) signaling).
  • the terminal device takes the smallest period among the two as the Paging DRX period.
  • a Paging DRX cycle includes at least one PO, and which PO the terminal device uses to monitor is related to the identity document (Identity Document, ID) of the terminal device.
  • ID identity Document
  • the system frame number (System Frame Number, SFN) number of PF is determined by the following formula:
  • the number (Index) of PO located in a PF is determined by the following formula:
  • i_s floor(UE_ID/N) mod Ns;
  • T is the DRX cycle for the terminal device to receive paging.
  • the network device broadcasts a default DRX cycle. If an RRC message or a high-level message (such as a NAS message) configures a dedicated DRX cycle for the terminal device, the terminal device broadcasts the DRX cycle and the RRC cycle broadcast by the network device. T is the smallest of the DRX cycles configured in messages or high-layer messages (such as NAS messages). If the RRC message or high-layer message (such as NAS message) does not configure a dedicated DRX cycle for the terminal device, the terminal device uses the DRX cycle broadcast by the network device as T. N is the number of PFs included in one DRX cycle.
  • Ns is the number of POs contained in a PF.
  • PF_offset is a time domain offset used to determine PF.
  • UE_ID is the remainder of dividing Temporary Mobile Subscriber Identity (TMSI) of the terminal device by 1024, for example, expressed as 5G-S-TMSI mod 1024.
  • TMSI Temporary Mobile Subscriber Identity
  • LTE Long Term Evolution
  • the LTE system introduces eDRX mode for such terminal devices to support a larger paging cycle , that is, the paging cycle can be greater than 256 SFNs.
  • the minimum value of the eDRX cycle configured by high-layer messages is 5.12s.
  • H-SFN Hyper System Frame Number
  • PTW Paging Time Window
  • the PTW is based on a paging superframe (Paging H-SFN, PH), a start time point PTW_start (paging time window starting radio frame) and an end time point PTW_end (paging time window) located in the PH. window termination radio frame) determination.
  • Paging H-SFN, PH paging superframe
  • start time point PTW_start paging time window starting radio frame
  • end time point PTW_end paging time window located in the PH. window termination radio frame
  • PH H-SFN that meets the following conditions:
  • H-SFN mod TeDRX, H (UE_ID_H mod TeDRX, H);
  • TeDRX is the eDRX cycle in superframe units, and optionally, TeDRX, H is configured by an Access and Mobility Management Function (Access and Mobility Management Function, AMF) entity.
  • AMF Access and Mobility Management Function
  • PTW_start is an SFN that meets the following conditions:
  • ieDRX floor(UE_ID_H/TeDRX, H) mod 4;
  • PTW_end is an SFN that meets the following conditions:
  • L is the window length of PTW, and the unit is millisecond.
  • L is configured by AMF.
  • system message update period In LTE and NR systems, there is a concept of system message update period.
  • the network device When the network device wants to update the system information, the network device first repeatedly sends the system information update instruction in the nth system information update period, and then repeatedly sends the changed system information in the n+1 system information update period.
  • m modificationPeriodCoeff*defaultPagingCycle, where modificationPeriodCoeff is the system message update cycle coefficient, and defaultPagingCycle defaults to the paging cycle, and these two parameters are determined through network device broadcast.
  • FIG. 1 is a schematic diagram of a system message update cycle provided by an exemplary embodiment of the present application.
  • the network device in the nth system message update period 101 , the network device will repeatedly send a system message update instruction 102 to the terminal device. After that, in the n+1th system message update period 103, the network device will repeatedly send the changed system message 104 to the terminal device.
  • the eDRX acquisition cycle is introduced.
  • a terminal device in the RRC_IDLE state and configured with an eDRX acquisition cycle not greater than the system message update cycle if the terminal device receives a system message update indication (SystemInfoModification) in the nth system message update cycle, the terminal device Receive changed system messages every system message update cycle.
  • a system message update indication SystemInfoModification-eDRX
  • the terminal device receives a system message update indication (SystemInfoModification-eDRX) in the nth eDRX cycle 1 eDRX acquisition cycle receives changed system messages.
  • the system message update period is applicable to the update of system messages other than System Information Block (SIB) 6, SIB7, SIB8, and positioning assistance data.
  • SIB System Information Block
  • Radio Resource Management (RRM) measurement The 5G system supports network devices to configure SSB measurement and Channel Status Indicator Reference Signal (CSI-RS) measurement for connected terminal devices. Specifically, it is reflected in the measurement configuration.
  • CSI-RS Channel Status Indicator Reference Signal
  • the network device will configure the SSB frequency point associated with the measurement object. Since the 5G system supports the transmission of multiple different subcarrier intervals, the measurement object needs to indicate the SSB subcarrier related to the measurement. interval.
  • CSI-RS measurement the network device configures reference frequency points for mapping CSI-RS to physical resources in the measurement object.
  • the measurement object For the measurement configuration of the SSB reference signal, the measurement object also additionally indicates the time window information of the SSB measurement, that is, the SS/PBCH Block Measurement Timing Configuration (SS/PBCH Block Measurement Timing Configuration, SMTC) information. Further, the network device may also instruct the terminal device which SSBs to measure (for example, SSB-ToMeasure) in the SMTC and other information.
  • the measurement object includes the configuration of the CSI-RS resource.
  • the 5G system supports the network to configure CSI measurement and reporting for connected terminal devices, which is used for more accurate data scheduling and transmission by network devices. Different from RRM measurement, CSI measurement only measures the serving cell, while RRM measures multiple cells on the entire frequency point.
  • the network device can configure a set of CSI measurement configuration (CSI-MeasConfig) for each serving cell, which includes multiple sets of CSI resource configuration (CSI-ResourceConfig), which indicates the CSI-RS resources used for CSI measurement, and The associated bandwidth part (Bandwidth Part, BWP).
  • the 5G system only supports SSB measurement of idle/inactive terminal equipment, and the terminal equipment performs cell selection and reselection through SSB measurement.
  • the related configuration of SSB measurement is realized by configuring the SMTC on the corresponding frequency point (that is, the configuration of SSB measurement time).
  • a terminal device in an idle/inactive state adopts a DRX mode for receiving paging.
  • the terminal device In each DRX cycle, the terminal device only listens to the PDCCH scrambled by the P-RNTI when the corresponding PO arrives. In the rest of the time, the terminal device does not need to monitor the PDCCH scrambled by the P-RNTI, so that the receiver can be turned off to save power. Purpose. Since the terminal device cannot maintain downlink synchronization with the serving cell when the receiver is turned off, the terminal device needs to turn on the receiver for a period of time before monitoring the PO for downlink synchronization.
  • downlink synchronization of terminal equipment in an idle/inactive state is performed based on SSB signals.
  • the SSB signal period is large, resulting in a large interval between SSB and PO, which will cause the terminal device to not completely turn off the receiver after SSB synchronization and before PO arrival, so this long period of time Terminal equipment still has the problem of high power consumption.
  • CSI-RS resources for downlink synchronization of terminal devices in idle/inactive state, further energy saving of terminal devices can be achieved, because CSI-RS resources have a shorter time-domain cycle than SSB configuration, so the time to complete synchronization is shorter than that of SSB.
  • the time interval from PO start can be shorter.
  • the network device configures the CSI-RS/Tracking Reference Signal (TRS) used by the terminal device in the connected (active) state to the terminal device in the idle/inactive state by broadcasting system messages.
  • TRS CSI-RS/Tracking Reference Signal
  • the CSI-RS/TRS configuration broadcast by the network device is not always available to the terminal device. Specifically which ones are available, the network device will further indicate through the PDCCH, for example, through the paging early indication (Paging Early Indication, PEI) signal or the paging PDCCH to indicate which CSI-RS/TRS configurations are available for the terminal equipment configured with DRX mode .
  • PEI paging Early Indication
  • the network device broadcasts 4 sets of CSI-RS configurations, and further indicates that the 1st set and the 4th set of CSI-RS configurations are available through a PEI signal or a paging PDCCH.
  • the terminal uses the available CSI-RS configuration indicated in the PDCCH, so as to realize the synchronous operation before monitoring the paging.
  • the above operations are for terminal devices supporting the DRX mode.
  • the CSI-RS configuration may have changed during an eDRX system message acquisition cycle. How to indicate which CSIs are available to terminal devices in eDRX mode? -RS configuration, is a problem that needs to be solved.
  • Fig. 2 shows a schematic diagram of a system architecture of a communication system provided by an embodiment of the present application.
  • the system architecture may include: a terminal device 10 , an access network device 20 and a core network device 30 .
  • the terminal device 10 may refer to a UE (User Equipment, user equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device.
  • UE User Equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user device.
  • the terminal equipment can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol, session initiation protocol) phone, a WLL (Wireless Local Loop, wireless local loop) station, a PDA (Personal Digital Assistant, personal digital processing), Handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5GS (5th Generation System, fifth-generation mobile communication system) or future evolved PLMN ( Public Land Mobile Network, terminal equipment in the public land mobile communication network), the embodiment of the present application is not limited to this.
  • 5GS Fifth Generation System, fifth-generation mobile communication system
  • future evolved PLMN Public Land Mobile Network, terminal equipment in the public land mobile communication network
  • the devices mentioned above are collectively referred to as terminal devices.
  • the number of terminal devices 10 is generally multiple, and one or more terminal devices 10 may be distributed in a cell managed by each access network device 20 .
  • the access network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10 .
  • the access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with access network device functions may be different.
  • they are called gNodeB or gNB.
  • the name "access network equipment” may change.
  • access network devices For the convenience of description, in the embodiment of the present application, the above-mentioned devices that provide the wireless communication function for the terminal device 10 are collectively referred to as access network devices.
  • a communication relationship may be established between the terminal device 10 and the core network device 30 through the access network device 20 .
  • the access network device 20 may be EUTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Network) or one or more eNodeBs in EUTRAN; in the 5G NR system, the access The network device 20 may be the RAN or one or more gNBs in the RAN.
  • EUTRAN Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Network
  • eNodeBs in EUTRAN
  • the access The network device 20 may be the RAN or one or more gNBs in the RAN.
  • the functions of the core network device 30 are mainly to provide user connections, manage users, and carry out services, and provide an interface to external networks as a bearer network.
  • the core network equipment in the 5G NR system can include AMF (Access and Mobility Management Function, access and mobility management function) entity, UPF (User Plane Function, user plane function) entity and SMF (Session Management Function, session management function) entity and other equipment.
  • AMF Access and Mobility Management Function, access and mobility management function
  • UPF User Plane Function, user plane function
  • SMF Session Management Function, session management function
  • the access network device 20 and the core network device 30 may be collectively referred to as network devices.
  • the access network device 20 and the core network device 30 communicate with each other through some air technology, such as the NG interface in the 5G NR system.
  • the access network device 20 and the terminal device 10 communicate with each other through a certain air technology, such as a Uu interface.
  • the method provided in the embodiment of the present application configures the dedicated available indication information for the terminal equipment configured with the eDRX mode, so that the terminal equipment can obtain the CSI-
  • the RS configuration or TRS configuration determines the CSI-RS configuration or TRS configuration available to the terminal device. In this way, the available CSI-RS configuration or TRS configuration is indicated for the terminal device.
  • a terminal device configured with eDRX mode reads system information at a non-start time of the eDRX system message acquisition cycle, the terminal device will It is determined that its currently reserved CSI-RS configuration or TRS configuration is not available.
  • the terminal equipment configured with eDRX mode the CSI-RS configuration or TRS configuration obtained from the boundary of the eDRX system message acquisition period is not necessarily the latest CSI-RS configuration or TRS configuration actually sent by the network equipment, so the terminal The CSI-RS configuration or TRS configuration saved by the device may be different from the configuration saved by the terminal device configured in DRX mode. In this case, the terminal device configured in the eDRX mode cannot reuse the available indication information sent to the terminal device in the DRX mode.
  • the introduction of separate available indication information for terminal devices in eDRX mode can enable network devices to notify terminal devices in eDRX mode which ones are available in their reserved CSI-RS configuration or TRS configuration, which is convenient for terminal devices in eDRX mode to save energy and realize
  • the available CSI-RS configuration or TRS configuration is separately indicated for the terminal equipment in the eDRX mode, which improves the flexibility of indication.
  • the network device does not know when the terminal device in eDRX mode enters the cell and reads system information, the network device does not know which CSI-RS configuration or TRS configuration the terminal device acquires.
  • the terminal device determines the available CSI-RS configuration or TRS configuration based on the most recent CSI-RS configuration or TRS configuration acquired at the boundary of the eDRX system information acquisition cycle
  • the network device will only start at the boundary of the eDRX system information acquisition cycle
  • the CSI-RS configuration or TRS configuration sent from time to time is used to set and send the available indication information to the terminal device, and these CSI-RS configurations or TRS configurations may be different from the configuration actually obtained by the terminal device. Therefore, the terminal device cannot use the available indication information sent by the network device in this case.
  • the terminal device determines that its reserved CSI-RS configuration or TRS configuration is unavailable, so that the terminal device can avoid using wrong available indication information in special scenarios, thereby using wrong CSI-RS configuration or TRS configuration question.
  • FIG. 3 shows a flowchart of a method for determining an available reference signal configuration provided by an embodiment of the present application.
  • FIG. 3 uses an example to illustrate that the method is applied to a terminal device in the communication system shown in FIG. 2 .
  • the method includes:
  • Step 302 The first terminal determines available reference signal configurations according to the first available indication information.
  • the first terminal is configured with an eDRX mode, and the first availability (availability) indication information is configured for the terminal configured with the eDRX mode.
  • the first terminal can determine an available reference signal configuration according to its reserved reference signal configuration in combination with the first available indication information. Exemplarily, the available reference signal configuration is used to implement downlink synchronization of the first terminal in eDRX mode.
  • the first available indication information is different from the second available indication information configured for the second terminal.
  • the second terminal is configured with the DRX mode or not configured with the eDRX mode.
  • the first terminal is in an idle or inactive state, and the first terminal obtains the reference signal configuration by monitoring the paging message. For example, in the case that the paging message indicates eDRX system information modification (such as SystemInfoModification-eDRX), the first terminal will read the system information at the beginning of the next eDRX system information acquisition period, so as to obtain the reference signal configuration.
  • eDRX system information modification such as SystemInfoModification-eDRX
  • the first available indication information is set by the network device for the latest reference signal configuration sent at the boundary of the eDRX system message acquisition cycle. Therefore, based on the first available indication information, the first terminal determines whether the latest reference signal configuration acquired at the boundary of the eDRX system information acquisition cycle is an available reference signal configuration, thereby obtaining an available reference signal configuration.
  • the network device is a base station.
  • the eDRX system information acquisition period of the first terminal is longer than the system information modification period.
  • the above reference signal configuration includes at least one of the following:
  • the terminal device configured in eDRX mode in the case that the terminal device configured in eDRX mode cannot use the availability indication information sent to the terminal device in DRX mode, by configuring a separate first available indication information for the terminal device configured in eDRX mode
  • the indication information can enable the network device to notify the terminal equipment configured in the eDRX mode which ones are available in its reserved reference signal configuration, which is convenient for the energy saving of the terminal equipment configured in the eDRX mode, and realize that the terminal equipment configured in the eDRX mode can separately indicate its available reference signals
  • the configuration improves the flexibility of indicating available reference signal configurations.
  • FIG. 4 shows a flowchart of a method for determining an available reference signal configuration provided by an embodiment of the present application.
  • FIG. 4 uses an example in which the method is applied to an access network device in the communication system shown in FIG. 2 .
  • the method includes:
  • Step 402 The network device configures first availability indication information to the first terminal.
  • the first available indication information is used for the first terminal to determine an available reference signal configuration, the first terminal is configured with an eDRX mode, and the first available indication information is configured for the terminal configured with the eDRX mode.
  • the available reference signal configuration is used to implement downlink synchronization of the first terminal in eDRX mode.
  • the first available indication information is different from the second available indication information configured for the second terminal. Wherein, the second terminal is configured with the DRX mode or not configured with the eDRX mode.
  • the network device sets the first available indication information for the latest reference signal configuration sent at the boundary of the eDRX system information acquisition cycle. Therefore, based on the first available indication information, the first terminal determines whether the latest reference signal configuration acquired at the boundary of the eDRX system information acquisition cycle is an available reference signal configuration, thereby obtaining an available reference signal configuration.
  • the network device configures the first availability indication information to the first terminal through a PEI signal or a paging PDCCH.
  • the eDRX system information acquisition period of the first terminal is longer than the system information modification period.
  • the above reference signal configuration includes at least one of the following:
  • the terminal device configured in eDRX mode in the case that the terminal device configured in eDRX mode cannot use the availability indication information sent to the terminal device in DRX mode, by configuring a separate first available indication information for the terminal device configured in eDRX mode
  • the indication information can enable the network device to notify the terminal equipment configured in the eDRX mode which ones are available in its reserved reference signal configuration, which is convenient for the energy saving of the terminal equipment configured in the eDRX mode, and realize that the terminal equipment configured in the eDRX mode can separately indicate its available reference signals
  • the configuration improves the flexibility of indicating available reference signal configurations.
  • the terminal device by configuring the dedicated available indication information for the terminal device configured with the eDRX mode, the terminal device can determine the available reference signal configuration in combination with the obtained reference signal configuration.
  • the reference signal configuration targeted by the available indication information configured for the terminal device may not be the reference signal configuration currently reserved by the terminal device. In this case, the terminal device will determine its currently reserved reference signal configuration unavailable.
  • the first type For configuring the first available indication information for the first terminal, the first terminal determines the available reference signal configuration according to the first available indication information.
  • FIG. 5 shows a flowchart of a method for determining an available reference signal configuration provided by an embodiment of the present application.
  • Figure 5 exemplifies the application of the method to the communication system shown in Figure 2 .
  • the method includes:
  • Step 502 the first terminal obtains the reference signal configuration sent by the network device.
  • the first terminal is configured with an extended discontinuous reception eDRX mode.
  • the first terminal is in an idle or inactive state, and the first terminal obtains the reference signal configuration by monitoring the paging message.
  • the reference signal configuration is used to implement downlink synchronization of the first terminal in eDRX mode. For example, in the case that the paging message indicates that the eDRX system information is changed, the first terminal will read the system information at the beginning of the next eDRX system information acquisition period, so as to acquire the reference signal configuration.
  • the eDRX system information acquisition period of the first terminal is longer than the system information modification period.
  • the reference signal configuration includes at least one of the following:
  • Step 504 The network device configures the first availability indication information to the first terminal.
  • the first available indication information is configured by the network device for the terminal configured with the eDRX mode.
  • the first available indication information is different from the second available indication information configured for the second terminal.
  • the second terminal is configured with a discontinuous reception DRX mode or is not configured with an eDRX mode.
  • the network device configures the first availability indication information to the first terminal through a PEI signal or a paging PDCCH.
  • the first terminal acquires the first availability indication information by monitoring the PEI signal or paging the PDCCH.
  • Step 506 The first terminal determines available reference signal configurations according to the first available indication information.
  • the first available indication information is set by the network device for the latest reference signal configuration sent at the boundary of the eDRX system message acquisition cycle. Therefore, based on the first available indication information, the first terminal determines whether the latest reference signal configuration acquired at the boundary of the eDRX system information acquisition cycle is an available reference signal configuration, thereby obtaining an available reference signal configuration.
  • the network device when the reference signal configuration includes the target SIB, and the eDRX system information change indication or system information value tag (system information value tag) includes information for distinguishing whether the target SIB has changed, the network device will pass the PEI signal or a paging PDCCH, and configure the first availability indication information to the first terminal. Based on the first available indication information obtained by monitoring the PEI signal or the paging PDCCH, the first terminal determines whether the latest reference signal configuration acquired at the boundary of the eDRX system information acquisition cycle is an available reference signal configuration.
  • the above-mentioned target SIB is SIBx, or the target SIB is an SIB for sending reference signal configurations.
  • FIG. 6 is a schematic diagram of a process of sending a reference signal configuration provided by an exemplary embodiment of the present application.
  • the network device sends the available indication information for reference signal configuration 1 in the system information (System Information, SI) update cycle n, and in the SI update cycle n+1, n+2, n+3 sends the available indication information for the reference signal configuration 2, so that the terminal configured in the DRX mode can determine its available reference signal configuration.
  • SI System Information
  • a terminal configured with eDRX For a terminal configured with eDRX, it will obtain the reference signal configuration 1 in the SI update cycle n, and the network device will send the available indication information for the reference signal configuration 1 in the eDRX acquisition cycle m+1, so that the terminal configured with the eDRX mode can according to The available indication information is combined with the reference signal configuration 1 to determine its available reference signal configuration.
  • the terminal device configured in eDRX mode in the case that the terminal device configured in eDRX mode cannot use the availability indication information sent to the terminal device in DRX mode, by configuring a separate first available indication information for the terminal device configured in eDRX mode
  • the indication information can enable the network device to notify the terminal equipment configured in the eDRX mode which ones are available in its reserved reference signal configuration, which is convenient for the energy saving of the terminal equipment configured in the eDRX mode, and realize that the terminal equipment configured in the eDRX mode can separately indicate its available reference signals
  • the configuration improves the flexibility of indicating available reference signal configurations.
  • the second type the reference signal configuration currently reserved by the first terminal is not the object targeted by the first availability indication information.
  • FIG. 7 shows a flowchart of a method for determining an available reference signal configuration provided by an embodiment of the present application.
  • FIG. 7 uses an example in which the method is applied to the communication system shown in FIG. 2 .
  • the method includes:
  • Step 702 the first terminal obtains the reference signal configuration through the network device.
  • the first terminal is configured with an extended discontinuous reception eDRX mode.
  • the first terminal is in an idle or inactive state, and the first terminal obtains the reference signal configuration by monitoring the paging message.
  • the reference signal configuration is used to implement downlink synchronization of the first terminal in eDRX mode. For example, in the case that the paging message indicates that the eDRX system information is changed, the first terminal will read the system information at the beginning of the next eDRX system information acquisition period, so as to acquire the reference signal configuration.
  • the eDRX system information acquisition period of the first terminal is longer than the system information modification period.
  • the reference signal configuration includes at least one of the following:
  • Step 704 In the case that the first terminal reads the system information at a non-starting moment of the eDRX system information acquisition period, before the first terminal starts to read the system information at the boundary of the eDRX system information acquisition period next time, the first terminal determines The currently reserved reference signal configuration is not available.
  • the network device cannot determine which reference signal configurations the first terminal acquires.
  • the reference signal configuration currently reserved by the first terminal may be obtained by reading the system message at a non-starting moment of the eDRX system message acquisition cycle , so the first indication information obtained by the first terminal may not be set by the network device for its reserved reference signal configuration, so in this case, the first terminal cannot determine based on the first indication information and its reserved reference signal configuration Available reference signal configurations.
  • the first terminal will determine that the currently reserved reference signal configuration is unavailable use.
  • the aforementioned non-starting moments include at least one of the following:
  • the first terminal When cell reselection occurs or when entering cell coverage from a no-coverage state, the first terminal will read system information of the new cell (target cell), so as to obtain its reserved reference signal configuration.
  • the time to read the system information is not necessarily the start time of the eDRX system information acquisition period.
  • the first terminal determines that the currently reserved reference signal configuration is unavailable, when the first terminal reads the system information at the boundary of the eDRX system information acquisition period, the first terminal will acquire the reference signal configuration again. Then the first terminal determines the available reference signal configuration of the first terminal based on the obtained reference signal configuration and in combination with the obtained first available indication information.
  • FIG. 8 is a schematic diagram of a process of sending a reference signal configuration provided by an exemplary embodiment of the present application.
  • the terminal when a terminal configured with eDRX mode camps on a certain cell at time T, the terminal will read the system information of the cell at this time, so as to obtain the reference signal configuration.
  • the time of this reading is not necessarily the time when the boundary of the eDRX system message acquisition period starts.
  • the terminal will ignore the available indication information of the network equipment for the terminal configuration configured with eDRX mode during eDRX acquisition period m and eDRX acquisition period m+1, that is, the terminal will determine that the currently reserved reference signal configuration is unavailable.
  • the terminal will determine which reference signal configurations are available based on the reference signal configuration sent by the network device and the available indication information for the terminal configuration configured in the eDRX mode starting from the eDRX acquisition cycle m+2.
  • the first terminal when the reference signal configuration reserved by the first terminal may be different from the reference signal configuration for which the network device configures the first available indication information, the first terminal may not be able to use the network device The first available indication information sent in this case. In this case, the first terminal will determine that its reserved reference signal configuration is unavailable, so as to avoid the problem that the first terminal uses wrong available indication information and thus uses wrong reference signal configuration in a special scenario.
  • Fig. 9 shows a block diagram of an apparatus for determining an available reference signal configuration provided by an embodiment of the present application.
  • the device is configured with eDRX mode. As shown in Figure 9, the device includes:
  • the determining module 901 is configured to determine available reference signal configurations according to the first available indication information.
  • the first available indication information is configured for a terminal configured with an eDRX mode.
  • the device also includes:
  • the obtaining module 902 is configured to obtain the first availability indication information by monitoring the paging early indication PEI signal or the paging PDCCH.
  • the first available indication information is different from the second available indication information configured for the second terminal.
  • the second terminal is configured with the DRX mode or not configured with the eDRX mode.
  • a determination module 901 is used for:
  • the latest reference signal configuration acquired at the boundary of the eDRX system information acquisition cycle is an available reference signal configuration.
  • the first available indication information is set by the network device for the latest reference signal configuration sent at the boundary of the eDRX system message acquisition period.
  • a determination module 901 is used for:
  • the reference signal configuration includes the target SIB
  • the eDRX system information change indication or the system information value tag includes information for distinguishing whether the target SIB has changed, based on the first available indication information, determine the latest eDRX system information acquisition period Whether the reference signal configuration acquired at the boundary of is an available reference signal configuration.
  • the target SIB is an SIBx, or the target SIB is an SIB configured to send reference signals.
  • the eDRX system information acquisition period of the device is greater than the system information modification period.
  • a determination module 901 is used for:
  • the device In the case that the device reads the system information at a non-starting moment of the eDRX system information acquisition period, it is determined that the currently reserved reference signal configuration is unavailable before the device starts to read the system information at the boundary of the eDRX system information acquisition period next time.
  • non-starting moments include at least one of the following:
  • the reference signal configuration includes at least one of the following:
  • Fig. 10 shows a block diagram of an apparatus for determining an available reference signal configuration provided by an embodiment of the present application. As shown in Figure 10, the device includes:
  • the configuration module 1001 is configured to configure first available indication information to the first terminal.
  • the first available indication information is used for the first terminal to determine the available reference signal configuration
  • the first terminal is configured with the eDRX mode
  • the first available indication information is configured for the terminal configured with the eDRX mode.
  • configuration module 1001 is used to:
  • the first available indication information is different from the second available indication information configured for the second terminal.
  • the second terminal is configured with the DRX mode or not configured with the eDRX mode.
  • the device also includes:
  • the setting module 1002 is configured to set the first available indication information for the latest reference signal configuration sent at the boundary of the eDRX system information acquisition period.
  • configuration module 1001 is used to:
  • the reference signal configuration includes the target SIB
  • the eDRX system message change indication or the system message value tag includes information for distinguishing whether the target SIB is changed, configure the first available Instructions.
  • the target SIB is an SIBx, or the target SIB is an SIB configured to send reference signals.
  • the eDRX system information acquisition period of the first terminal is greater than the system information modification period.
  • the reference signal configuration includes at least one of the following:
  • the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • FIG. 11 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application.
  • the communication device 110 includes: a processor 1101, a receiver 1102, a transmitter 1103, a memory 1104 and a bus 1105 .
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1102 and the transmitter 1103 can be implemented as a communication component, which can be a communication chip.
  • the memory 1104 is connected to the processor 1101 through the bus 1105 .
  • the memory 1104 may be used to store at least one instruction, and the processor 1101 is used to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.
  • volatile or non-volatile storage devices include but not limited to: magnetic or optical disks, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • the processor and the transceiver in the communication device involved in the embodiment of the present application can perform the steps performed by the terminal device in any of the above-mentioned methods, which will not be repeated here. .
  • the processor and the transceiver in the communication device involved in the embodiment of the present application may perform the steps performed by the access network device in any of the methods shown above, where I won't repeat them here.
  • a computer-readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the At least one program, the code set or the instruction set is loaded and executed by the processor to implement the methods for determining available reference signal configurations provided by the above method embodiments.
  • a chip is also provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a communication device, it is used to realize the determination provided by the above-mentioned various method embodiments A method that can be configured with a reference signal.
  • a computer program product which, when run on a processor of a computer device, causes the computer device to execute the above-mentioned method for determining an available reference signal configuration.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

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

Abstract

La présente demande se rapporte au domaine des communications mobiles. Un procédé et un appareil pour déterminer une configuration de signal de référence disponible, ainsi qu'un dispositif et un support sont divulgués. Le procédé comprend l'étape suivante : un premier terminal détermine une configuration de signal de référence disponible selon des premières informations d'indication disponibles, les premières informations d'indication disponibles étant configurées pour un terminal configuré en mode eDRX. Lorsqu'un dispositif terminal configuré en mode eDRX ne peut pas utiliser des informations d'indication disponibles qui sont envoyées à un dispositif terminal en mode DRX, au moyen de la configuration de premières informations d'indication disponibles séparées pour le dispositif terminal configuré en mode eDRX, un dispositif de réseau peut communiquer, au dispositif terminal configuré en mode eDRX, les configurations de signal de référence conservées de celui-ci qui sont disponibles, ce qui facilite l'économie d'énergie du dispositif terminal configuré en mode eDRX ; et une configuration de signal de référence disponible peut être indiquée séparément au dispositif terminal configuré en mode eDRX, ce qui permet d'améliorer la flexibilité d'indication d'une configuration de signal de référence disponible.
PCT/CN2022/070383 2022-01-05 2022-01-05 Procédé et appareil de détermination de configuration de signal de référence disponible, ainsi que dispositif et support WO2023130276A1 (fr)

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PCT/CN2022/070383 WO2023130276A1 (fr) 2022-01-05 2022-01-05 Procédé et appareil de détermination de configuration de signal de référence disponible, ainsi que dispositif et support
CN202280073981.5A CN118216110A (zh) 2022-01-05 2022-01-05 确定可用参考信号配置的方法、装置、设备及介质

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CN112788681A (zh) * 2019-11-08 2021-05-11 华为技术有限公司 通信方法、装置和系统
WO2021160647A1 (fr) * 2020-02-14 2021-08-19 Telefonaktiebolaget Lm Ericsson (Publ) Signaux de référence supplémentaire pour des équipements utilisateurs dans des états non connectés

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