WO2022205046A1 - Appareil et procédé de transmission d'informations, dispositif de communication et support de stockage - Google Patents

Appareil et procédé de transmission d'informations, dispositif de communication et support de stockage Download PDF

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Publication number
WO2022205046A1
WO2022205046A1 PCT/CN2021/084331 CN2021084331W WO2022205046A1 WO 2022205046 A1 WO2022205046 A1 WO 2022205046A1 CN 2021084331 W CN2021084331 W CN 2021084331W WO 2022205046 A1 WO2022205046 A1 WO 2022205046A1
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Prior art keywords
reference signal
scs configuration
scs
configuration information
reference signals
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PCT/CN2021/084331
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English (en)
Chinese (zh)
Inventor
刘洋
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180000977.1A priority Critical patent/CN113228553A/zh
Priority to PCT/CN2021/084331 priority patent/WO2022205046A1/fr
Publication of WO2022205046A1 publication Critical patent/WO2022205046A1/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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Definitions

  • the present application relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and in particular, to information transmission methods, apparatuses, communication devices, and storage media.
  • the 3rd Generation Partnership Project of the power saving project of version 17 (R17, Release 17)
  • TRS Tracking Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • embodiments of the present disclosure provide an information transmission method, apparatus, communication device, and storage medium.
  • an information transmission method is provided, wherein the method is executed by a base station, and the method includes:
  • SCS sub-carrier spacing
  • N is a positive integer
  • the reference signals are used at least for idle UEs and/or inactive UEs UE receives.
  • the sending SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • the sending SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • the SCS configuration information may instruct the UE to switch the reference signal from a current SCS configuration to a predetermined SCS configuration.
  • the method before the sending the reference signal validating indication carrying the SCS configuration information, the method further includes:
  • initial SCS configuration information is used to indicate the SCS configuration associated with the initial downlink bandwidth part (BWP, Bandwidth Part), wherein the SCS configuration associated with the initial downlink BWP is used to implicitly indicate the initial SCS configuration associated with the M reference signals, where M is a positive integer less than or equal to N.
  • the sending a reference signal validating indication carrying SCS configuration information includes at least one of the following:
  • DCI Downlink Control Information
  • Radio Resource Control (RRC, Radio Resource Control) release information that carries the reference signal validation indication.
  • the transmission resources of different reference signals are different.
  • the reference signal includes:
  • an information transmission method is provided, wherein the method is performed by a user equipment UE, and the method includes:
  • the SCS configuration associated with each of the reference signals is determined.
  • the receiving SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • the receiving SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • a reference signal validation indication carrying the SCS configuration information is received, where the reference signal validation indication is used to instruct the base station to send the reference signal through transmission resources of the reference signal.
  • the determining, according to the SCS configuration information, the SCS configuration respectively associated with each of the reference signals includes:
  • the reference signal is switched from the current SCS configuration to a predetermined SCS configuration.
  • the method before the receiving the reference signal validation indication carrying the SCS configuration information, the method further includes:
  • the initial SCS configuration information determine the SCS configuration associated with the downlink initial BWP
  • the determined SCS configurations associated with the initial downlink BWPs are determined as M initial SCS configurations associated with the reference signals, where M is a positive integer less than or equal to N.
  • the receiving a reference signal validation indication that carries the SCS configuration information includes at least one of the following:
  • the transmission resources of different reference signals are different.
  • the reference signal includes:
  • an information transmission apparatus wherein the apparatus includes: a first sending module, wherein,
  • the first sending module is configured to send SCS configuration information indicating SCS configurations associated with N reference signals respectively, where N is a positive integer, wherein the reference signals are at least used for idle UEs and/or inactive UEs take over.
  • the first sending module includes:
  • the first sending submodule is configured to send a system message carrying SCS configuration information.
  • the first sending module includes:
  • the second sending submodule is configured to send a reference signal validation indication carrying the SCS configuration information, where the reference signal validation indication is used to instruct the base station to send the reference signal through transmission resources of the reference signal.
  • the SCS configuration information may instruct the UE to switch the reference signal from a current SCS configuration to a predetermined SCS configuration.
  • the apparatus further includes:
  • the second sending module is configured to send a system message carrying the initial SCS configuration information before sending the reference signal carrying the SCS configuration information to take effect, where the initial SCS configuration information is used to indicate the downlink initial BWP.
  • Associated SCS configuration wherein the SCS configuration associated with the initial downlink BWP is used to implicitly indicate the initial SCS configuration associated with the reference signal M, where M is a positive integer less than or equal to N.
  • the second sending submodule includes at least one of the following:
  • a first sending unit configured to send a paging DCI carrying the reference signal validation indication
  • the second sending unit is configured to send the RRC release information carrying the reference signal validation indication.
  • the transmission resources of different reference signals are different.
  • the reference signal includes:
  • an information transmission apparatus wherein the apparatus includes: a first receiving module and a first determining module, wherein,
  • the first receiving module is configured to receive SCS configuration information indicating SCS configurations associated with N reference signals respectively, where N is a positive integer, wherein the reference signals are at least used for idle UEs and/or inactive UEs take over;
  • the first determining module is configured to determine the SCS configuration associated with each of the reference signals according to the SCS configuration information.
  • the first receiving module includes:
  • the first receiving sub-module is configured to receive a system message carrying SCS configuration information.
  • the first receiving module includes:
  • the second receiving sub-module is configured to receive a reference signal validation indication carrying the SCS configuration information, where the reference signal validation indication is used to instruct the base station to send the reference signal through transmission resources of the reference signal.
  • the first determining module includes:
  • the determining submodule is configured to, according to the SCS configuration information, determine that the reference signal is switched from the current SCS configuration to a predetermined SCS configuration.
  • the apparatus before the receiving the reference signal validation indication that carries the SCS configuration information, the apparatus further includes:
  • the second receiving module is configured to receive the system message carrying the initial SCS configuration information,
  • the second determining module is configured to, according to the initial SCS configuration information, determine and indicate the SCS configuration associated with the downlink initial BWP;
  • the third determining module configures the determined SCS configurations associated with the initial downlink BWP as M initial SCS configurations associated with the reference signals, where M is a positive integer less than or equal to N.
  • the second receiving sub-module includes at least one of the following:
  • a first receiving unit configured to receive the paging DCI carrying the reference signal validation indication
  • the second receiving unit is configured to receive the RRC release information that carries the reference signal validation indication.
  • the transmission resources of different reference signals are different.
  • the reference signal includes:
  • a communication equipment apparatus including a processor, a memory, and an executable program stored on the memory and executable by the processor, wherein the processor executes the executable program.
  • the program executes the executable program.
  • a storage medium on which an executable program is stored, wherein when the executable program is executed by a processor, the information transmission method according to the first aspect or the second aspect is implemented A step of.
  • the information transmission method, apparatus, communication device, and storage medium provided by the embodiments of the present disclosure.
  • the base station sends SCS configuration information indicating the SCS configurations associated with the N reference signals, where N is a positive integer, wherein the reference signals are at least received by idle UEs and/or inactive UEs.
  • the SCS configuration of the N reference signals is indicated by the SCS configuration information, and the UE can monitor and receive the reference signal at the monitoring timing of the reference signal based on the indicated SCS configuration.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • FIG. 2 is a schematic flowchart of an information transmission method according to an exemplary embodiment
  • FIG. 3 is a schematic flowchart of another information transmission method according to an exemplary embodiment
  • FIG. 4 is a block diagram of an information transmission apparatus according to an exemplary embodiment
  • FIG. 5 is a block diagram of another information transmission apparatus according to an exemplary embodiment
  • Fig. 6 is a block diagram of an apparatus for information transmission according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information without departing from the scope of the embodiments of the present disclosure.
  • the word "if” as used herein can be interpreted as "at the time of" or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a
  • RAN radio access network
  • the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device.
  • a station For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless communication device externally connected to the trip computer.
  • the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.
  • the base station 12 may be a network-side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
  • the MTC system may be a network-side device in a wireless communication system.
  • the base station 12 may be an evolved base station (eNB) used in the 4G system.
  • the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control Protocol
  • MAC Media Access Control
  • distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between the terminals 11 .
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
  • the above wireless communication system may further include a network management device 13 .
  • the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
  • the implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.
  • the execution bodies involved in the embodiments of the present disclosure include, but are not limited to, UEs such as mobile phone terminals that support cellular mobile communication, and base stations.
  • An application scenario of the embodiments of the present disclosure is that, in communication data transmission, a large number of relatively narrow narrowband subcarriers are used to carry data, and the subcarriers are closely arranged in the frequency domain.
  • optional sub-carrier spacing (SCS, Sub-Carrier Space) configurations include: 15KHz, 30KHz, 60KHz, 120KHz, and 240KHz, etc.
  • the time slot length in NR system depends on the subcarrier spacing. The wider the subcarrier spacing, the shorter the time slot duration.
  • TRS and/or CSI-RS can be received by idle state UEs and/or inactive state UEs.
  • idle state UEs and/or inactive state UEs how to determine the SCS of TRS and/or CSI-RS monitoring timing, and then monitor TRS and/or CSI-RS is an urgent problem to be solved.
  • this exemplary embodiment provides an information transmission method, and the information transmission method can be applied to a base station of wireless communication, including:
  • Step 201 Send SCS configuration information indicating SCS configurations associated with N reference signals, where N is a positive integer, wherein the reference signals are at least received by idle UEs and/or inactive UEs.
  • the UE may be a mobile phone terminal or the like that uses a cellular mobile communication technology to perform wireless communication.
  • the base station may be a communication device that provides an access network interface to a UE in a cellular mobile communication system.
  • the UE may be an idle UE or an inactive UE.
  • the reference signal may be a signal used for downlink synchronization for idle UEs or inactive UEs.
  • the reference signal includes: TRS and/or CSI-RS.
  • TRS and/or CSI-RS may be shared by idle state UEs and/or inactive state UEs and/or connected state UEs. Idle state UEs, inactive state UEs and/or connected state UEs may monitor TRS and/or CSI-RS at TRS and/or CSI-RS occasions.
  • the idle state UE and/or the inactive state UE may perform downlink synchronization based on the monitored TRS and/or CSI-RS.
  • the transmission resources of different reference signals are different.
  • the transmission resources may include, but are not limited to, frequency domain resources, time domain resources, and/or code domain resources, and the like.
  • the base station may send the reference signal through different transmission resources, and the UE receives the reference signal through different transmission resources.
  • the SCS configuration associated with the reference signal may include, but is not limited to: the SCS configuration of the listening occasion of the reference signal.
  • the base station may configure the SCS configuration for different reference signals.
  • the SCS configurations of different reference signals may be the same or different.
  • the SCS configuration may include: an SCS used by the idle state UE and/or the inactive state UE to monitor and/or parse the reference signal at the reference signal listening occasion.
  • the SCS configuration may be an SCS used by an idle UE and/or an inactive UE for monitoring and/or parsing TRS and/or CSI-RS at the TRS and/or CSI-RS listening occasion.
  • SCS configurations may include: 15KHz, 30KHz, 60KHz, 120KHz, and/or 240KHz, among others.
  • the SCS configuration information may occupy multiple bits, and different codes are used to indicate different SCSs.
  • the base station may carry the SCS configuration information through broadcast information or dedicated signaling.
  • the UE may determine the SCS configuration of the reference signal according to the SCS configuration information, and then monitor and receive the SCS at the monitoring timing of the reference signal based on the SCS configuration.
  • the SCS configuration of the N reference signals is indicated by the SCS configuration information, and the UE can monitor and receive the reference signal at the monitoring timing of the reference signal based on the indicated SCS configuration.
  • the success rate of monitoring and receiving reference signals by UEs in idle state and/or inactive states is improved.
  • the idle state UE and/or the inactive state UE monitors and receives TRS and/or CSI-RS at the monitoring timing of TRS and/or CSI-RS based on the SCS configuration, so as to realize downlink synchronization by using TRS and/or CSI-RS, etc.,
  • the SSB is no longer used for synchronization, and the synchronization duration is reduced, thereby saving UE power.
  • the sending SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • the base station may carry the SCS configuration information through system messages.
  • the system message may carry SCS configuration information of one or more reference signals.
  • the UE may determine the SCS configuration of one or more reference signals based on the system message.
  • the SCS configuration information carried in the system message may indicate the SCS configuration of different reference signals.
  • the SCS configurations of different reference signals may be the same or different.
  • the system message may include: system message block (System Information Block), etc.
  • the UE determines the SCS configuration of the reference signal through the system message, thereby realizing accurate monitoring and reception of the reference signal at the monitoring timing of the reference message.
  • the sending SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • the base station When the base station configures TRS and/or CSI-RS for use by idle UEs and/or inactive UEs, it needs to specify whether to send TRS and/or CSI-RS on the transmission resources of TRS and/or CSI-RS. That is, it indicates whether the TRS and/or CSI-RS are valid. Reduce the situation that the base station configures the transmission resources of TRS and/or CSI-RS, but the base station does not send TRS and/or CSI-RS. This reduces the situation that the UE still performs TRS and/or CSI-RS detection when the base station does not send TRS and/or CSI-RS, thereby saving UE power.
  • the base station may send a reference signal validation indication carrying the SCS configuration information, and the UE may determine the SCS configuration based on the SCS configuration information in the reference signal validation indication.
  • the base station may carry the SCS configuration information in the reference signal validation indication indicating the validation of the TRS and/or the CSI-RS.
  • the UE can determine that the TRS and/or CSI-RS are valid, and determine the SCS configuration of the TRS and/or CSI-RS monitoring timing, thereby improving the success rate of TRS and/or CSI-RS monitoring and reception.
  • the reference signal validation indication and the SCS configuration information carried by the reference signal validation indication may be associated with the same reference information.
  • the reference signal validation indication may be sent based on each reference signal, and the SCS configuration indicating different reference signals may be implemented by carrying the SCS configuration of the corresponding reference signal in the reference signal validation indication of different reference signals. There is no need to re-update the SCS configuration of all reference signals when one or more reference signals are changed, thereby reducing signaling load.
  • the carrying amount of the reference signal validating indication information is increased, and the utilization efficiency of the reference signal validating indication is improved.
  • the SCS configuration information carrying one or more reference signals is indicated by the reference signal validation, so as to realize the configuration of the SCS configuration of one or more reference signals, and it is not necessary to re-update when one or more reference signals are changed.
  • the SCS configuration of all reference signals does not need to be updated again, thereby reducing signaling load.
  • the SCS configuration information may instruct the UE to switch the reference signal from a current SCS configuration to a predetermined SCS configuration.
  • the SCS configuration information may include a change indication (Change Indication), where the change indication is used to instruct the reference signal to switch between two SCS configurations.
  • the conversion indication occupies one bit. When the bit value is 1, the conversion indication may indicate that the terminal should switch the SCS configuration. Alternatively, when the bit value is 0, the conversion indication may indicate that the terminal does not need to switch the SCS configuration.
  • the predetermined SCS configuration may be sent by the base station to the UE through downlink signaling or the like before sending the SCS configuration information.
  • the UE receives the transition indication, it can be determined that the UE transitions from the current SCS configuration to the predetermined SCS configuration.
  • the UE may monitor the reference signal using a predetermined SCS configuration.
  • the current SCS configuration may be the initial SCS configuration of the reference signal, or the SCS configuration indicated by the SCS configuration information preceding the current SCS configuration information.
  • the method before the sending the reference signal validating indication carrying the SCS configuration information, the method further includes:
  • initial SCS configuration information is used to indicate the SCS configuration associated with the downlink initial BWP
  • SCS configuration associated with the downlink initial BWP is used to implicitly indicate the M all
  • M is a positive integer less than or equal to N.
  • the UE can select different BWPs based on its own service requirements.
  • the initial BWP may be adopted when the UE accesses the network.
  • the initial BWP may be broadcast by the base station through a system message, and the UE determines the initial BWP according to the indication of the system message.
  • the base station will carry the initial SCS configuration information in the system message to indicate the SCS configuration corresponding to the initial BWP.
  • the UE may use the SCS configuration corresponding to the initial BWP as the initial SCS configuration of one or more reference signals. That is, by default, M reference signals, such as M TRSs and/or CSI-RSs, use the same SCS as the initial BWP. M may be specified by the communication protocol, or negotiated by the base station and the UE. The UE may determine the SCS of the initial BWP as the SCS of the M reference signals.
  • M reference signals such as M TRSs and/or CSI-RSs
  • the reference signal SCS configuration can be determined without additional configuration.
  • the monitoring and reception of reference signals by UEs in idle state and/or inactive states are implemented.
  • the base station When the base station needs to reconfigure the SCSs of one or more reference signals, it can send SCS configuration information, such as sending a reference signal effective indication carrying the SCS configuration information, so as to realize the configuration of the SCSs of one or more reference signals , and it is not necessary to update the SCS configuration of all reference signals, reducing the signaling load.
  • SCS configuration information such as sending a reference signal effective indication carrying the SCS configuration information, so as to realize the configuration of the SCSs of one or more reference signals , and it is not necessary to update the SCS configuration of all reference signals, reducing the signaling load.
  • the sending a reference signal validating indication carrying SCS configuration information includes at least one of the following:
  • the base station may carry the reference signal validation indication in the paging (Paging DCI) and RRC release (Release) information.
  • Paging DCI is used to schedule paging messages, and the UE can determine whether to wake up to receive paging messages based on Paging DCI. Synchronization is required when the UE wakes up.
  • the Paging DCI carries the reference signal validation indication and then indicates the SCS configuration, and simultaneously indicates whether to wake up, whether the reference message is valid, and the SCS configuration through one signaling, which increases the amount of information carried by the signaling and reduces the signaling generated by separate instructions through a single signaling. load.
  • the base station When the UE enters the idle state or the inactive state, the base station releases the RRC connection through the RRC Release information.
  • the RRC Release information carries the reference signal effective indication and then indicates the SCS configuration, so that the UE can determine the SCS configuration of the reference signal when entering the idle state or inactive state, and can directly monitor and receive the reference signal based on the SCS configuration when awake. No additional signaling is required to indicate the SCS configuration. On the one hand, the signaling load when the UE wakes up is reduced. On the other hand, the amount of information carried by the RRC Release information is increased, and the utilization efficiency of the RRC Release information is improved.
  • this exemplary embodiment provides an information transmission method, and the information transmission method can be applied to a UE of wireless communication, including:
  • Step 301 Receive SCS configuration information indicating the SCS configurations associated with N reference signals respectively, where N is a positive integer, wherein the reference signals are at least received by idle UEs and/or inactive UEs;
  • Step 302 Determine the SCS configuration associated with each of the reference signals according to the SCS configuration information.
  • the UE may be a mobile phone terminal or the like that uses a cellular mobile communication technology to perform wireless communication.
  • the base station may be a communication device that provides an access network interface to a UE in a cellular mobile communication system.
  • the UE may be an idle UE or an inactive UE.
  • the reference signal may be a signal used for downlink synchronization for idle UEs or inactive UEs.
  • the reference signal includes: TRS and/or CSI-RS.
  • TRS and/or CSI-RS may be shared by idle UEs and/or inactive UEs and/or connected UEs.
  • Idle state UEs, inactive state UEs and/or connected state UEs may monitor TRS and/or CSI-RS at TRS and/or CSI-RS occasions.
  • the idle state UE and/or the inactive state UE may perform downlink synchronization based on the monitored TRS and/or CSI-RS.
  • the transmission resources of different reference signals are different.
  • the transmission resources may include, but are not limited to, frequency domain resources, time domain resources, and/or code domain resources, and the like.
  • the base station may send the reference signal through different transmission resources, and the UE receives the reference signal through different transmission resources.
  • the SCS configuration associated with the reference signal may include, but is not limited to: the SCS configuration of the listening occasion of the reference signal.
  • the base station may configure the SCS configuration for different reference signals.
  • the SCS configurations of different reference signals may be the same or different.
  • the SCS configuration may include: an SCS used by the idle state UE and/or the inactive state UE to monitor and/or parse the reference signal at the reference signal listening occasion.
  • the SCS configuration may be an SCS used by an idle UE and/or an inactive UE for monitoring and/or parsing TRS and/or CSI-RS at the TRS and/or CSI-RS listening occasion.
  • SCS configurations may include: 15KHz, 30KHz, 60KHz, 120KHz, and/or 240KHz, among others.
  • the SCS configuration information may occupy multiple bits, and different codes are used to indicate different SCSs.
  • the base station may carry the SCS configuration information through broadcast information or dedicated signaling.
  • the UE may determine the SCS configuration of the reference signal according to the SCS configuration information, and then monitor and receive the SCS at the monitoring timing of the reference signal based on the SCS configuration.
  • the SCS configuration of the N reference signals is indicated by the SCS configuration information, and the UE can monitor and receive the reference signal at the monitoring timing of the reference signal based on the indicated SCS configuration.
  • the success rate of monitoring and receiving reference signals by UEs in idle state and/or inactive states is improved.
  • the idle state UE and/or the inactive state UE monitors and receives TRS and/or CSI-RS at the monitoring timing of TRS and/or CSI-RS based on the SCS configuration, so as to realize downlink synchronization by using TRS and/or CSI-RS, etc.,
  • the SSB is no longer used for synchronization, and the synchronization duration is reduced, thereby saving UE power.
  • the receiving SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • the base station may carry the SCS configuration information through system messages.
  • the system message may carry SCS configuration information of one or more reference signals.
  • the UE may determine the SCS configuration of one or more reference signals based on the system message.
  • the SCS configuration information carried in the system message may indicate the SCS configuration of different reference signals.
  • the SCS configurations of different reference signals may be the same or different.
  • the system message may include: system message block (System Information Block), etc.
  • the UE determines the SCS configuration of the reference signal through the system message, thereby realizing accurate monitoring and reception of the reference signal at the monitoring timing of the reference message.
  • the receiving SCS configuration information indicating the SCS configurations associated with the N reference signals respectively includes:
  • a reference signal validation indication carrying the SCS configuration information is received, where the reference signal validation indication is used to instruct the base station to send the reference signal through transmission resources of the reference signal.
  • the base station When the base station configures TRS and/or CSI-RS for use by idle UEs and/or inactive UEs, it needs to specify whether to send TRS and/or CSI-RS on the transmission resources of TRS and/or CSI-RS. That is, it indicates whether the TRS and/or CSI-RS are valid. Reduce the situation that the base station configures the transmission resources of TRS and/or CSI-RS, but the base station does not send TRS and/or CSI-RS. This reduces the situation that the UE still performs TRS and/or CSI-RS detection when the base station does not send TRS and/or CSI-RS, thereby saving UE power.
  • the base station may send a reference signal validation indication carrying the SCS configuration information, and the UE may determine the SCS configuration based on the SCS configuration information in the reference signal validation indication.
  • the base station may carry the SCS configuration information in the reference signal validation indication indicating the validation of the TRS and/or the CSI-RS.
  • the UE can determine that the TRS and/or CSI-RS are valid, and determine the SCS configuration for determining the timing of monitoring the TRS and/or CSI-RS, thereby improving the success rate of TRS and/or CSI-RS monitoring and reception.
  • the reference signal validation indication and the SCS configuration information carried by the reference signal validation indication may be associated with the same reference information.
  • the reference signal validation indication may be sent based on each reference signal, and the SCS configuration indicating different reference signals may be implemented by carrying the SCS configuration of the corresponding reference signal in the reference signal validation indication of different reference signals. There is no need to re-update the SCS configuration of all reference signals when one or more reference signals are changed, thereby reducing signaling load.
  • the carrying amount of the reference signal validating indication information is increased, and the utilization efficiency of the reference signal validating indication is improved.
  • the SCS configuration information carrying one or more reference signals is indicated by the reference signal validation, so as to realize the configuration of the SCS configuration of one or more reference signals, and it is not necessary to re-update when one or more reference signals are changed.
  • the SCS configuration of all reference signals does not need to be updated again, thereby reducing signaling load.
  • the determining the SCS configuration associated with each of the reference signals according to the SCS configuration information includes:
  • the reference signal is switched from the current SCS configuration to a predetermined SCS configuration.
  • the SCS configuration information may include a change indication (Change Indication), where the change indication is used to instruct the reference signal to switch between two SCS configurations.
  • the conversion indication occupies one bit. When the bit value is 1, the conversion indication may indicate that the terminal should switch the SCS configuration. Alternatively, when the bit value is 0, the conversion indication may indicate that the terminal does not need to switch the SCS configuration.
  • the predetermined SCS configuration may be sent by the base station to the UE through downlink signaling or the like before sending the SCS configuration information.
  • the UE receives the switching instruction, it can be determined that the UE switches from the current SCS configuration to the predetermined SCS configuration.
  • the UE may monitor the reference signal using a predetermined SCS configuration.
  • the current SCS configuration may be the initial SCS configuration of the reference signal, or the SCS configuration indicated by the SCS configuration information preceding the current SCS configuration information.
  • the method before the receiving the reference signal validation indication carrying the SCS configuration information, the method further includes:
  • the initial SCS configuration information determine the SCS configuration associated with the downlink initial BWP
  • the determined SCS configurations associated with the initial downlink BWPs are determined as M initial SCS configurations associated with the reference signals, where M is a positive integer less than or equal to N.
  • the UE can select different BWPs based on its own service requirements.
  • the initial BWP may be adopted when the UE accesses the network.
  • the initial BWP may be broadcast by the base station through a system message, and the UE determines the initial BWP according to the indication of the system message.
  • the base station will carry the initial SCS configuration information in the system message to indicate the SCS configuration corresponding to the initial BWP.
  • the UE may use the SCS configuration corresponding to the initial BWP as the initial SCS configuration of one or more reference signals. That is, by default, M reference signals, such as M TRSs and/or CSI-RSs, use the same SCS as the initial BWP. M may be specified by the communication protocol, or negotiated by the base station and the UE. The UE may determine the SCS of the initial BWP as the SCS of the M reference signals.
  • M reference signals such as M TRSs and/or CSI-RSs
  • the reference signal SCS configuration can be determined without additional configuration.
  • the monitoring and reception of reference signals by UEs in idle state and/or inactive states are implemented.
  • the base station When the base station needs to reconfigure the SCSs of one or more reference signals, it can send SCS configuration information, such as sending a reference signal effective indication carrying the SCS configuration information, so as to realize the configuration of the SCSs of one or more reference signals , and it is not necessary to update the SCS configuration of all reference signals, reducing the signaling load.
  • SCS configuration information such as sending a reference signal effective indication carrying the SCS configuration information, so as to realize the configuration of the SCSs of one or more reference signals , and it is not necessary to update the SCS configuration of all reference signals, reducing the signaling load.
  • the receiving a reference signal validation indication that carries the SCS configuration information includes at least one of the following:
  • the base station may carry the reference signal validation indication in the paging (Paging DCI) and RRC release (Release) information.
  • Paging DCI is used to schedule paging messages, and the UE can determine whether to wake up to receive paging messages based on Paging DCI. Synchronization is required when the UE wakes up.
  • the Paging DCI carries the reference signal validation indication and then indicates the SCS configuration, and simultaneously indicates whether to wake up, whether the reference message is valid, and the SCS configuration through one signaling, which increases the amount of information carried by the signaling and reduces the signaling generated by separate instructions through a single signaling. load.
  • the base station When the UE enters the idle state or the inactive state, the base station releases the RRC connection through the RRC Release information.
  • the RRC Release information carries the reference signal effective indication and then indicates the SCS configuration, so that the UE can determine the SCS configuration of the reference signal when entering the idle state or inactive state, and can directly monitor and receive the reference signal based on the SCS configuration when awake. No additional signaling is required to indicate the SCS configuration. On the one hand, the signaling load when the UE wakes up is reduced. On the other hand, the amount of information carried by the RRC Release information is increased, and the utilization efficiency of the RRC Release information is improved.
  • the system information configures the same SCS as the initial downlink access bandwidth (DL Initial BWP) by default; that is, an SCS without an implicitly configured RS, where the RS includes : TRS and/or CSI-RS.
  • DL Initial BWP initial downlink access bandwidth
  • a change indication (change indication) of the SCS is added to the TRS and/or CSI-RS availability indication to adjust the SCS of the TRS and/or CSI-RS.
  • the validity indication may be in signaling such as Paging DCI and/or RRC release.
  • SCS indication can be performed respectively.
  • the SCS of the validity indication can be indicated through a system message. This method and the method in 1-3 can be selected from 2 to 1. That is, if the SCS is indicated in the system information (suitable for the consistent case), the SCS is not indicated by the validity indication.
  • 5 and 4 are also applicable to the multi-RS resource situation.
  • the TRS and/or CSI-RS validity indication described in 6.2 is that when configuring TRS and/or CSI-RS for use by idle UEs and/or inactive UEs, it is necessary to explicitly indicate TRS and/or CSI-RS. Whether it is available (available), to prevent the base station from configuring resources, but the base station does not send TRS and/or CSI-RS. Thus, the situation that the UE consumes power due to invalid monitoring is reduced.
  • An embodiment of the present invention further provides an information transmission apparatus, which is applied in a base station.
  • the information transmission apparatus 100 includes: a first sending module 110, wherein:
  • the first sending module 110 is configured to send SCS configuration information indicating SCS configurations associated with N reference signals respectively, where N is a positive integer, wherein the reference signals are at least used for idle UEs and/or inactive UEs UE receives.
  • the first sending module 110 includes:
  • the first sending sub-module 111 is configured to send a system message carrying SCS configuration information.
  • the first sending module 110 includes:
  • the second sending sub-module 112 is configured to send a reference signal validation indication carrying the SCS configuration information, where the reference signal validation indication is used to instruct the base station to send the reference signal through transmission resources of the reference signal.
  • the SCS configuration information may instruct the UE to transition the reference signal from a current SCS configuration to a predetermined SCS configuration.
  • the apparatus 100 further includes:
  • the second sending module 120 is configured to send a system message carrying initial SCS configuration information before sending the reference signal effective indication carrying the SCS configuration information, where the initial SCS configuration information is used to indicate the downlink initial BWP
  • the associated SCS configuration wherein the SCS configuration associated with the initial downlink BWP is used to implicitly indicate the M initial SCS configurations associated with the reference signal, where M is a positive integer less than or equal to N.
  • the second sending submodule 112 includes at least one of the following:
  • a first sending unit 1121 configured to send a paging DCI carrying the reference signal validation indication
  • the second sending unit 1122 is configured to send the RRC release information carrying the reference signal validation indication.
  • the transmission resources of different reference signals are different.
  • the reference signal includes:
  • An embodiment of the present invention further provides an information transmission apparatus, which is applied to a UE.
  • the information transmission apparatus 200 includes: a first receiving module 210 and a first determining module 220, wherein:
  • the first receiving module 210 is configured to receive SCS configuration information indicating the SCS configurations associated with the N reference signals respectively;
  • the first determining module 220 is configured to determine the SCS configuration associated with each of the reference signals according to the SCS configuration information.
  • the first receiving module 210 includes:
  • the first receiving sub-module 211 is configured to receive a system message carrying SCS configuration information.
  • the first receiving module 210 includes:
  • the second receiving sub-module 212 is configured to receive a reference signal validation indication carrying the SCS configuration information, where the reference signal validation indication is used to instruct the base station to send the reference signal through transmission resources of the reference signal.
  • the first determining module 220 includes:
  • the determining submodule 221 is configured to, according to the SCS configuration information, determine that the reference signal is switched from the current SCS configuration to a predetermined SCS configuration.
  • the apparatus 200 before the receiving the reference signal validation indication carrying the SCS configuration information, the apparatus 200 further includes:
  • the second receiving module 230 is configured to receive the system message carrying the initial SCS configuration information
  • the second determining module 240 is configured to determine, according to the initial SCS configuration information, the SCS configuration associated with the indicated downlink initial BWP;
  • the third determining module 250 configures the determined SCS configurations associated with the initial downlink BWPs as M initial SCS configurations associated with the reference signals, where M is a positive integer less than or equal to N.
  • the second receiving sub-module 212 includes at least one of the following:
  • the first receiving unit 2121 configured to receive the paging DCI carrying the valid indication of the reference signal
  • the second receiving unit 2122 is configured to receive the RRC release information carrying the reference signal validation indication.
  • the transmission resources of different reference signals are different.
  • the reference signal includes:
  • the first sending module 110, the second sending module 120, the first receiving module 210, the first determining module 220, the second receiving module 230, the second determining module 240, the third determining module 250, etc. may By one or more central processing units (CPU, Central Processing Unit), graphics processing unit (GPU, Graphics Processing Unit), baseband processor (BP, baseband processor), application specific integrated circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processors, controllers, A microcontroller (MCU, Micro Controller Unit), a microprocessor (Microprocessor), or other electronic components are implemented for executing the aforementioned method.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • BP baseband processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • FIG. 6 is a block diagram of an apparatus 3000 for information transmission according to an exemplary embodiment.
  • apparatus 3000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • the apparatus 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power supply component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, And the communication component 3016.
  • the processing component 3002 generally controls the overall operation of the apparatus 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 3002 can include one or more processors 3020 to execute instructions to perform all or some of the steps of the methods described above.
  • processing component 3002 may include one or more modules that facilitate interaction between processing component 3002 and other components.
  • processing component 3002 may include a multimedia module to facilitate interaction between multimedia component 3008 and processing component 3002.
  • Memory 3004 is configured to store various types of data to support operation at device 3000 . Examples of such data include instructions for any application or method operating on the device 3000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply assembly 3006 provides power to various components of device 3000.
  • Power supply components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 3000.
  • Multimedia component 3008 includes a screen that provides an output interface between device 3000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. A touch sensor can sense not only the boundaries of a touch or swipe action, but also the duration and pressure associated with the touch or swipe action.
  • the multimedia component 3008 includes a front-facing camera and/or a rear-facing camera. When the apparatus 3000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 3010 is configured to output and/or input audio signals.
  • audio component 3010 includes a microphone (MIC) that is configured to receive external audio signals when device 3000 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 3004 or transmitted via communication component 3016.
  • the audio component 3010 also includes a speaker for outputting audio signals.
  • the I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor assembly 3014 includes one or more sensors for providing status assessment of various aspects of device 3000 .
  • the sensor assembly 3014 can detect the open/closed state of the device 3000, the relative positioning of the components, such as the display and keypad of the device 3000, the sensor assembly 3014 can also detect the position change of the device 3000 or a component of the device 3000, the user The presence or absence of contact with the device 3000, the orientation or acceleration/deceleration of the device 3000 and the temperature change of the device 3000.
  • Sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 3016 is configured to facilitate wired or wireless communication between apparatus 3000 and other devices.
  • the apparatus 3000 may access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 3016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 3016 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 3000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component implementation is used to perform the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which are executable by the processor 3020 of the apparatus 3000 to perform the above method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

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

Abstract

Les modes de réalisation de la présente demande concernent un appareil et un procédé de transmission d'informations, un dispositif de communication et un support de stockage. Une station de base envoie des informations de configuration de SCS indiquant une configuration d'espace de sous-porteuse (SCS) respectivement associée à N signaux de référence, N étant un nombre entier positif, et les signaux de référence étant au moins reçus par un équipement utilisateur (UE) au repos et/ou un UE non activé.
PCT/CN2021/084331 2021-03-31 2021-03-31 Appareil et procédé de transmission d'informations, dispositif de communication et support de stockage WO2022205046A1 (fr)

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CN202180000977.1A CN113228553A (zh) 2021-03-31 2021-03-31 信息传输方法、装置、通信设备和存储介质
PCT/CN2021/084331 WO2022205046A1 (fr) 2021-03-31 2021-03-31 Appareil et procédé de transmission d'informations, dispositif de communication et support de stockage

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