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WO2025111805A1 - Procédé d'envoi de signal de référence périodique de liaison latérale, terminal et support de stockage - Google Patents

Procédé d'envoi de signal de référence périodique de liaison latérale, terminal et support de stockage Download PDF

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Publication number
WO2025111805A1
WO2025111805A1 PCT/CN2023/134760 CN2023134760W WO2025111805A1 WO 2025111805 A1 WO2025111805 A1 WO 2025111805A1 CN 2023134760 W CN2023134760 W CN 2023134760W WO 2025111805 A1 WO2025111805 A1 WO 2025111805A1
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WO
WIPO (PCT)
Prior art keywords
terminal
reference signal
cycle
information
sending
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/134760
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English (en)
Chinese (zh)
Inventor
赵群
朱亚军
洪伟
苟家彤
李勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202380079560.8A priority Critical patent/CN120303999A/zh
Priority to PCT/CN2023/134760 priority patent/WO2025111805A1/fr
Publication of WO2025111805A1 publication Critical patent/WO2025111805A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a sidelink periodic reference signal sending method, a terminal and a storage medium.
  • the sidelink (SL) communication mode can support beam-based reception and transmission. If a receiving end can receive periodic reference signals from multiple transmitting ends, there may be a situation where the periodic reference signal resources overlap, resulting in the receiving end being unable to clearly determine which analog receiving beam should be used.
  • the embodiments of the present disclosure propose a sidelink periodic reference signal sending method, terminal and storage medium to solve the technical problem in the related art that the receiving end cannot clearly apply which analog receiving beam to use.
  • a method for sending a sidelink periodic reference signal is proposed, which is performed by a first terminal.
  • the method includes: receiving first information from a second terminal, where the first information is used to indicate that the first terminal periodically sends a reference signal.
  • a method for sending a sidelink periodic reference signal is proposed, which is executed by a second terminal.
  • the method includes: sending first information to at least one first terminal, wherein the first information is used to indicate that the first terminal periodically sends a reference signal.
  • a method for sending a sidelink periodic reference signal including:
  • the second terminal sends first information to the first terminal, where the first information is used to instruct the first terminal to periodically send a reference signal;
  • the first terminal determines a configuration of the reference signal based on the first information.
  • a sidelink periodic reference signal sending device comprising: a transceiver module for receiving first information from a second terminal, the first information being used to indicate periodic sending of a reference signal; and a processing module for determining a configuration of the reference signal based on the first information.
  • a sidelink periodic reference signal sending device comprising: a processing module, used to determine first information corresponding to at least one first terminal, the first information being used to indicate that the first terminal periodically sends a reference signal; and a transceiver module, used to send the first information to the at least one first terminal.
  • a terminal comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein the executable instructions, when executed by the processor, enable the terminal to execute the sidelink periodic reference signal sending method described in the first aspect or the second aspect above.
  • a communication system comprising a second terminal and at least one first terminal, wherein the first terminal is configured to implement the sidelink periodic reference signal sending method described in the first aspect, and the second terminal is configured to implement the sidelink periodic reference signal sending method described in the second aspect.
  • a storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the sidelink periodic reference signal sending method described in the first aspect or the second aspect above.
  • a first terminal may periodically send a reference signal to a second terminal based on the first information sent by the second terminal. Since the second terminal has mastered the configurations of reference signal sending by multiple first terminals connected to it, it may determine whether overlap or conflict occurs between the reference signals, and determine the configuration of each reference signal according to the actual situation, thereby avoiding overlap or conflict between reference signals, and avoiding failure of reference signal reception due to the inability of the second terminal to clearly simulate the receiving beam, and thus will not have any impact on beam failure detection and beam failure recovery.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • FIG2 is an interactive schematic diagram of a method for sending a sidelink periodic reference signal according to an embodiment of the present disclosure.
  • FIG3A is a schematic flowchart of a method for sending a sidelink periodic reference signal according to an embodiment of the present disclosure.
  • FIG3B is a schematic diagram showing resource configuration of a reference signal according to an embodiment of the present disclosure.
  • FIG3C is a schematic diagram showing resource configuration of a reference signal according to an embodiment of the present disclosure.
  • FIG3D is a schematic diagram showing resource configuration of a reference signal according to an embodiment of the present disclosure.
  • FIG4 is a schematic flowchart of a method for sending a sidelink periodic reference signal according to an embodiment of the present disclosure.
  • FIG5 is a schematic block diagram showing a device structure of a first terminal according to an embodiment of the present disclosure.
  • FIG6 is a schematic block diagram showing a device structure of a second terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure.
  • FIG8 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.
  • Embodiments of the present disclosure provide a sidelink periodic reference signal sending method, a terminal, and a storage medium.
  • an embodiment of the present disclosure proposes a method for sending a sidelink periodic reference signal, which is performed by a first terminal.
  • the method includes: receiving first information from a second terminal, wherein the first information is used to indicate that the first terminal periodically sends a reference signal.
  • the first terminal can periodically send a reference signal to the second terminal based on the first information sent by the second terminal. Since the second terminal has mastered the configuration of the reference signals sent by multiple first terminals connected to it, it can determine whether there is overlap or conflict between the reference signals, and determine the configuration of each reference signal according to the actual situation, so as to avoid overlap or conflict between the reference signals, and avoid the failure of reference signal reception due to the inability of the second terminal to clearly simulate the receiving beam, and thus will not have any impact on beam failure detection and beam failure recovery.
  • the first information is used to indicate at least one of the following: overlap or conflict between the reference signal and reference signals sent by other terminals; first cycle duration; the first cycle duration is the duration of the first cycle for the second terminal to receive the reference signal; the time domain position allocated to the reference signal in the first cycle; the unoccupied time domain position in the first cycle; the starting position of the time period for the first terminal to send the reference signal in the system frame.
  • the first cycle duration corresponds to the number of first terminals sending reference signals to the second terminal.
  • the method further includes:
  • the time period includes at least one second period.
  • the determining of the time domain position for sending the reference signal in the second period includes: determining a first sub-period among the M sub-periods included in the second period, the period duration of the sub-period being the first period duration; determining the time domain position for sending the reference signal in the first sub-period as the time domain position for sending the reference signal in the second period; wherein the time domain position for sending the reference signal in the first sub-period corresponds to the time domain position allocated for the reference signal in the first period.
  • the reference signal is a reference signal for beam failure detection.
  • the reference signal is a channel state information reference signal CSI-RS.
  • an embodiment of the present disclosure proposes a method for sending a sidelink periodic reference signal, which is executed by a second terminal.
  • the method includes: sending first information to at least one first terminal, wherein the first information is used to indicate that the first terminal periodically sends a reference signal.
  • the first information is used to indicate at least one of the following: the reference signal overlaps or conflicts with reference signals sent by other terminals; the first cycle duration; the first cycle duration is the duration of the first cycle for the second terminal to receive the reference signal; the time domain position allocated to the reference signal in the first cycle; the unoccupied time domain position in the first cycle; the starting position of the time period for the first terminal to send the reference signal in the system frame.
  • the first cycle duration is The number of first terminals to which the reference signal is sent corresponds.
  • a method for sending a sidelink periodic reference signal comprising: a second terminal sends first information to a first terminal, the first information being used to indicate that the first terminal periodically sends a reference signal; the first terminal determines the configuration of the reference signal based on the first information.
  • a sidelink periodic reference signal sending device comprising: a transceiver module for receiving first information from a second terminal, the first information being used to indicate periodic sending of a reference signal; and a processing module for determining a configuration of the reference signal based on the first information.
  • a sidelink periodic reference signal sending device includes: a processing module, used to determine first information corresponding to at least one first terminal, and the first information is used to indicate that the first terminal periodically sends a reference signal; a transceiver module, used to send the first information to the at least one first terminal.
  • a terminal comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein the executable instructions, when executed by the processor, enable the terminal to execute the sidelink periodic reference signal sending method described in the optional embodiment of the first aspect or the second aspect.
  • an embodiment of the present disclosure proposes a communication device, wherein the communication device includes: one or more processors; a memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the processor calls the executable instructions so that the communication device executes the sidelink periodic reference signal sending method described in the optional embodiment of the first aspect or the second aspect.
  • an embodiment of the present disclosure proposes a communication system, which includes: a second terminal and at least one first terminal; wherein the first terminal is configured to execute the method described in the optional embodiment of the first aspect, and the second terminal is configured to execute the method described in the optional embodiment of the second aspect.
  • an embodiment of the present disclosure proposes a storage medium, wherein the storage medium stores instructions.
  • the instructions When the instructions are executed on a communication device, the communication device executes the method described in the optional embodiment of the first aspect or the second aspect.
  • an embodiment of the present disclosure proposes a program product.
  • the program product is executed by a communication device
  • the communication device executes the method described in the optional embodiment of the first aspect or the second aspect.
  • an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method as described in the first aspect or the optional embodiment of the second aspect.
  • the disclosed embodiments propose a sidelink periodic reference signal transmission method, a terminal, a network device, and a storage medium.
  • the terms information transmission method, information receiving method, information processing method, communication method, etc. can be replaced with each other
  • the terms terminal, network device, information processing device, communication device, etc. can be replaced with each other
  • the terms information processing system, communication system, etc. can be replaced with each other.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • the optional embodiments in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional embodiments of other embodiments.
  • plurality refers to two or more.
  • the recording methods such as “in another case B”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: in some embodiments A (A is executed independently of B); in some embodiments B (B is executed independently of A); in some embodiments A and B are selected for execution (A and B are selectively executed); in some embodiments A and B (both A and B are executed).
  • a branches such as A, B, C, etc., it is similar to the above.
  • the recording method of "A or B” may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only for distinguishing different description objects and do not constitute any restrictions on the position, order, priority, quantity or content of the description objects.
  • description objects please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.
  • the description object is "field”
  • the ordinal number before “field” in “first field” and “second field” does not limit the position or order between “fields”
  • “first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of "first field” and “second field”.
  • the description object is "level”
  • the ordinal number before “level” in “first level” and “second level” does not limit the priority between “levels”.
  • the number of description objects is not limited by ordinal numbers and can be one or more.
  • “first device” can be one or more.
  • the objects modified by different prefixes can be the same or different.
  • first device and second device can be the same device or different devices, and their types can be the same or different.
  • description object is "information”
  • first information and second information can be the same information or different information, and their contents can be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and the like can be interpreted as physical or virtual, and their names are not limited to those in the embodiments.
  • network may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • terminal In some embodiments, the terms "terminal”, “terminal device”, “user equipment (UE)”, “user terminal” “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client and the like can be used interchangeably.
  • the access network device, the core network device, or the network device may be replaced by a terminal.
  • the communication between the access network device, the core network device, or the network device and the terminal is replaced by the communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2T), etc.). V2X) and other structures), the embodiments of the present disclosure may also be applied.
  • the terminal may also be configured that the terminal has all or part of the functions of the access network device.
  • terms such as "uplink” and "downlink” may also be replaced with terms corresponding to terminal-to-terminal communication (for example, "side”).
  • uplink channels, downlink channels, etc. may be replaced with side channels
  • uplinks, downlinks, etc. may be replaced with side links.
  • the terminal may be replaced by an access network device, a core network device, or a network device.
  • the access network device, the core network device, or the network device may also be configured to have a structure that has all or part of the functions of the terminal.
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 includes a first terminal 101 and at least one second terminal 102 .
  • the first terminal 101 and the second terminal 102 include, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and at least one of a wireless terminal device in a smart home (smart home), but are not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR)
  • the communication system 100 may further include a network device, and the network device includes at least one of the following: an access network device and a core network device.
  • the access network device is, for example, a node or device that connects a terminal to a wireless network.
  • the access network device may include an evolved NodeB (eNB), a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a wireless network, etc. in a 5G communication system.
  • eNB evolved NodeB
  • ng-eNB next generation NodeB
  • gNB next generation NodeB
  • NB node B
  • HNB home node B
  • HeNB home evolved node B
  • wireless backhaul device a wireless network, etc. in a 5G communication system.
  • At least one of a controller radio network controller, RNC
  • a base station controller base station controller, BSC
  • a base transceiver station base transceiver station, BTS
  • a base band unit base band unit, BBU
  • RNC radio network controller
  • BSC base station controller
  • BTS base transceiver station
  • BBU base band unit
  • Mobile switching center a mobile switching center
  • a base station in a 6G communication system an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and an access node in a Wi-Fi system, but not limited thereto.
  • Open RAN open base station
  • Cloud RAN cloud base station
  • Wi-Fi Wi-Fi
  • the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • a person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • the fourth generation mobile communication system (4G) the fifth generation mobile communication system (5G), 5G new radio (NR), future wireless Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine-to-Machine (M2M) system, Internet of Things (IoT) Things, IoT) system, vehicle
  • FIG2 is an interactive schematic diagram of a method for sending a sidelink periodic reference signal according to an embodiment of the present disclosure.
  • the sidelink periodic reference signal sending method includes:
  • Step S201 The second terminal 102 sends first information to the first terminal 101, where the first information is used to instruct the first terminal to periodically send a reference signal.
  • the second terminal may determine the configuration of the reference signal corresponding to the first terminal, and then send first information to the first terminal, where the first information is used to instruct the first terminal to periodically send a reference signal to the second terminal.
  • Step S202 The first terminal 101 determines the configuration of the reference signal based on the first information.
  • the first terminal can receive first information from the second terminal, where the first information is used to instruct the first terminal to periodically send a reference signal to the second terminal.
  • the first terminal can determine the configuration for periodically sending the reference signal based on the first information.
  • the second terminal can determine the configuration of the reference signal corresponding to each first terminal according to actual needs, and then send first information to each first terminal respectively, where the first information is used to instruct each first terminal to periodically send a reference signal to the second terminal, so that each first terminal determines its corresponding configuration for periodically sending the reference signal based on the received first information.
  • the second terminal may first determine the periodic The configuration of the corresponding reference signal is received from each first terminal. When it is determined that the reference signals periodically sent by the multiple first terminals overlap or conflict, the first information is sent to the corresponding first terminal.
  • the first terminal may adjust the configuration of the reference signal sent periodically so that the adjusted reference signal no longer overlaps or conflicts.
  • the first terminal may re-determine the configuration of the periodically transmitted reference signal according to the first information, and periodically transmit the reference signal to the second terminal using the analog transmit beam corresponding to the second terminal based on the updated configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the updated configuration.
  • the reference signal may be a reference signal used for beam failure detection.
  • the reference signal is a channel state information reference signal CSI-RS.
  • the first information may be used to indicate that the reference signal periodically sent by the first terminal overlaps or conflicts with the reference signal sent by other terminals.
  • the first terminal may adjust the configuration of the reference signal periodically sent by the first terminal, and send the adjusted configuration to the second terminal, so that the second terminal updates the configuration of receiving the reference signal of the first terminal according to the adjusted configuration.
  • the first cycle duration corresponds to the number of first terminals sending reference signals to the second terminal.
  • the second terminal after receiving the first information, can also determine at least one of the following configurations of the reference signal based on the first information: determine the second cycle duration corresponding to the second cycle for sending the reference signal by the first terminal; wherein the second cycle duration is M times the first cycle duration, and M is a positive integer greater than 1; determine the time domain position for sending the reference signal in the second cycle; determine the starting position of the time period in the system frame.
  • the second terminal may send first information to at least one first terminal, where the first information may be used to indicate that a reference signal periodically sent by the first terminal overlaps or conflicts with a reference signal sent by other terminals.
  • the first terminal may adjust the configuration of the reference signal periodically sent by the first terminal, and send the adjusted configuration to the second terminal, so that the second terminal updates the configuration of receiving the reference signal of the first terminal according to the adjusted configuration.
  • the second terminal may send first information to at least one first terminal, wherein the first information
  • the information can be used to indicate the length of the first cycle; the length of the first cycle is the length of the first cycle for the second terminal to receive the reference signal.
  • the first terminal may determine, based on the first cycle duration, a second cycle duration corresponding to a second cycle in which the first terminal sends a reference signal.
  • the second terminal may send first information to at least one first terminal, where the first information may be used to indicate a first cycle duration and unoccupied time domain positions in the first cycle.
  • the first terminal After receiving the first access information, the first terminal can determine the second cycle duration of the second cycle for sending the reference signal by the first terminal based on the received first cycle duration, and based on the unoccupied time domain positions in the first cycle, determine the time domain position for sending the reference signal from the unoccupied time domain positions in the second cycle.
  • the second terminal may send first information to at least one first terminal, where the first information may be used to indicate a first cycle duration corresponding to the first cycle and a time domain position allocated to the reference signal in the first cycle.
  • the first terminal After receiving the first information, the first terminal can determine the second cycle duration of the second cycle for sending the reference signal by the first terminal based on the received first cycle duration, and determine the time domain position for sending the reference signal in the second cycle based on the time domain position allocated to the reference signal in the first cycle.
  • the first information sent by the second terminal to at least one first terminal may also be used to indicate the starting position of the time period for the first terminal to periodically send the reference signal in the system frame.
  • the first terminal may determine the starting position of the time period for the first terminal to periodically send the reference signal in the system frame based on the first information, that is, determine the boundary of the second period corresponding to the first terminal in the system frame.
  • the sidelink communication technology can support direct communication between a terminal (also called a user equipment (UE)) and a terminal.
  • UE user equipment
  • the sidelink communication mode it is mainly based on the transmission and reception of omnidirectional antennas.
  • the coverage performance of SideLink based on omnidirectional antenna reception and transmission is limited.
  • SideLink can adopt beam-based reception and transmission.
  • the side link may also be called a side link, an edge link, a side link, a secondary link, etc.
  • the transmission of reference signals in SideLink can support non-periodic configuration, and the transmission of the non-periodic reference signals
  • the transmission is not independent and needs to be sent together with the SideLink data.
  • the configuration of the periodic reference signal can be used.
  • the receiver of the reference signal needs to calculate its reference signal received power (RSRP) on the resources of the pre-configured periodic reference signal and compare it with the preset threshold, and then determine whether there is a beam failure based on the comparison result.
  • RSRP reference signal received power
  • the configuration information carried by the PC5-RRC (Radio Resource Control) information based on the PC5 interface between the multiple transmitting ends cannot be interoperable, such as the configuration information of the periodic reference signal. Therefore, in a certain time slot, there may be a situation where multiple transmitting ends send reference signals at the same time. Correspondingly, for the receiving end, there may be a situation where the resources of the reference signals overlap in the configuration information of the periodic reference signals received from the multiple transmitting ends. In this case, the receiving end cannot clearly know which analog receiving beam should be used to receive the reference signal.
  • PC5-RRC Radio Resource Control
  • FIG3A is a schematic flow chart of a method for sending a sidelink periodic reference signal according to an embodiment of the present disclosure.
  • the method for sending a sidelink periodic reference signal shown in this embodiment can be performed by a first terminal.
  • the first terminal is a transmitter of a reference signal.
  • the sidelink periodic reference signal sending method may include the following steps:
  • step S301 first information is received from a second terminal, where the first information is used to instruct the first terminal to periodically send a reference signal.
  • a SideLink connection may be established between the first terminal and the second terminal, and the first terminal may send a reference signal to the second terminal based on a beam according to the configuration of the reference signal.
  • the reference signal may be a reference signal for beam failure detection, for example, a channel state information reference signal (CSI-RS) or a primary synchronization signal (PSS).
  • CSI-RS channel state information reference signal
  • PSS primary synchronization signal
  • CSI-RS is used as an example in the following embodiments.
  • the reference signal may be a reference signal sent aperiodically or periodically.
  • a reference signal for example, the reference signal may be a CSI-RS sent periodically.
  • the configuration of the reference signal may be determined in various ways, for example, may be determined by one of the following ways: protocol pre-definition; high-level indication; or carried in the first information sent by the second terminal to the first terminal.
  • the first terminal may first determine the configuration of the SCI-RS to be periodically sent to the second terminal, and may send the configuration of the CSI-RS to the second terminal through messages such as PC5-RRC or SCI.
  • the first terminal may periodically send the CSI-RS to the second terminal using an analog transmit beam corresponding to the second terminal based on the configuration.
  • the second terminal periodically receives the CSI-RS sent by the first terminal from the first terminal using an analog receive beam corresponding to the first terminal based on the received configuration.
  • the first terminal can receive first information from the second terminal, where the first information is used to instruct the first terminal to periodically send CSI-RS to the second terminal.
  • the first terminal can determine the configuration for periodically sending CSI-RS based on the first information.
  • the first terminal may periodically send the CSI-RS to the second terminal using the simulated transmit beam corresponding to the second terminal based on the configuration of the CSI-RS indicated by the first information.
  • the second terminal periodically receives the CSI-RS sent by the first terminal from the first terminal using the simulated receive beam corresponding to the first terminal.
  • the first terminal can autonomously determine the configuration of the CSI-RS and then send the configuration of the CSI-RS to the second terminal. Then, the first terminal can periodically send the CSI-RS to the second terminal based on the configuration using the simulated transmit beam corresponding to the second terminal.
  • the second terminal periodically receives the CSI-RS sent by the first terminal from the first terminal using the simulated receive beam corresponding to the first terminal based on the received configuration.
  • the second terminal may determine the configuration of the CSI-RS corresponding to the first terminal, and then send first information to the first terminal, where the first information is used to instruct the first terminal to periodically send CSI-RS to the second terminal.
  • the first terminal determines the configuration of periodically sending CSI-RS to the second terminal based on the reception of the first information, and periodically sends CSI-RS to the second terminal using the simulated transmit beam corresponding to the second terminal based on the configuration.
  • the second terminal periodically receives the CSI-RS sent by the first terminal from the first terminal using the simulated receive beam corresponding to the first terminal based on the configuration.
  • the second terminal may first determine the configuration of the CSI-RS corresponding to each first terminal according to actual needs, such as determining the resources of the CSI-RS corresponding to each first terminal, and then send first information to each first terminal respectively, wherein the first information is used to indicate each
  • the first terminal periodically sends CSI-RS to the second terminal, so that each first terminal determines the configuration of periodically sending CSI-RS based on the received first information.
  • Each first terminal can periodically send CSI-RS to the second terminal using the simulated transmission beam corresponding to the second terminal based on the configuration of periodically sending CSI-RS.
  • the second terminal can periodically receive the corresponding CSI-RS from each first terminal using the simulated reception beam corresponding to each first terminal.
  • the second terminal may determine the configuration of periodically receiving the corresponding CSI-RS from each first terminal, and based on the configuration of the CSI-RS corresponding to each first terminal, use the simulated receiving beam corresponding to each first terminal to receive the CSI-RS from each first terminal.
  • the configuration of the CSI-RS corresponding to each first terminal may be indicated by a higher layer of the second terminal, or indicated by each first terminal respectively.
  • the first terminal cannot know the configuration of periodically sending CSI-RS by other first terminals, when the second terminal receives CSI-RS corresponding to each first terminal, there may be overlap or conflict between multiple CSI-RS, for example, the resources occupied by multiple CSI-RS overlap or conflict.
  • the multiple first terminals connected to the second terminal include UE1, UE2 and UE3, and the second terminal receives the configuration of CSI-RS periodically sent by UE1, UE2 and UE3 respectively; wherein, the CSI-RS corresponding to UE1 occupies time slots S1, S4, S7; the CSI-RS corresponding to UE2 occupies time slots S1, S3, S5, S7; the CSI-RS corresponding to UE3 occupies time slots S2, S4, S6, S8.
  • time slot S1 the CSI-RS corresponding to UE1 and UE2 conflict
  • time slot S4 the CSI-RS corresponding to UE1 and UE3 conflict
  • time slot S7 the CSI-RS corresponding to UE1 and UE2 conflict.
  • the second terminal When the second terminal determines that the CSI-RS periodically sent by multiple first terminals overlap or conflict, it can send first information to the corresponding first terminal, wherein the first information is used to instruct the first terminal to adjust the configuration of the periodically sent CSI-RS. After receiving the first information, the first terminal can adjust the configuration of the periodically sent CSI-RS so that the adjusted reference signal no longer overlaps or conflicts.
  • the first terminal may re-determine the configuration of the periodically transmitted reference signal according to the first information, and periodically transmit the reference signal to the second terminal using the analog transmit beam corresponding to the second terminal based on the updated configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the updated configuration.
  • the first terminal can periodically send a reference signal to the second terminal based on the first information sent by the second terminal. Since the second terminal has mastered the reference signals sent by multiple first terminals connected to it, By considering the configuration of the reference signal, it is possible to determine whether there is overlap or conflict between the reference signals, and determine the configuration of each reference signal according to the actual situation, so as to avoid overlap or conflict between the reference signals, and avoid the failure of reference signal reception due to the inability of the second terminal to clearly simulate the receiving beam, thereby not having any impact on beam failure detection and beam failure recovery.
  • the second terminal may determine the configuration of the reference signal periodically sent to the first terminal, wherein the configuration of the reference signal may include resources for the second terminal to receive the reference signal periodically sent by the first terminal. If the second terminal determines that the resources of the reference signal periodically sent by the first terminal overlap or conflict with the resources of the reference signal sent by other terminals, the second terminal may send the first information to the first terminal.
  • the first information may be used to instruct the first terminal to adjust the configuration of a reference signal sent periodically.
  • the first terminal may adjust the configuration of the periodically transmitted reference signal based on the first information, and periodically transmit the reference signal using the analog transmit beam corresponding to the second terminal based on the adjusted configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the adjusted configuration.
  • the first information can be used to indicate at least one of the following: overlap or conflict between the reference signal and reference signals sent by other terminals; the first cycle duration corresponding to the first cycle; the time domain position allocated to the reference signal in the first cycle; the unoccupied time domain position in the first cycle; the starting position of the time period in the system frame during which the first terminal sends the reference signal.
  • the first period may be a receiving period used by the second terminal when periodically receiving a reference signal from at least one first terminal.
  • the second terminal may allocate corresponding time domain resources to the reference signal sent by each first terminal in the first period, and use the analog receiving beam corresponding to the first terminal to receive the reference signal sent by the first terminal in the time domain resources corresponding to the reference signal sent by the first terminal. For example, a time slot is allocated to each first terminal in the first period, and the analog receiving beam corresponding to the first terminal is used to receive the reference signal sent by the first terminal in the time slot corresponding to each first terminal in the first period.
  • the first cycle duration may indicate the duration of the receiving cycle used by the second terminal when receiving the reference signal; the time domain position allocated for the reference signal in the first cycle may be used to indicate the time domain resource allocated for the reference signal sent by the first terminal in the first cycle; the unoccupied time domain position in the first cycle may be used to indicate the time domain resource not allocated in the first cycle, that is, to indicate the time domain resource that the first terminal can use in the first cycle.
  • the candidate time domain resources for sending the reference signal, the first terminal may determine the time domain resource for sending the reference signal from the candidate time domain resources.
  • the first cycle duration can be determined according to the relevant configuration of the second terminal.
  • the first cycle duration can correspond to the number of first terminals that send reference signals to the second terminal.
  • the time domain resources contained in the first cycle at least need to satisfy the ability to allocate one time domain resource to each first terminal, that is, the number of time domain resources occupied by the first cycle duration can be greater than or equal to the number of first terminals.
  • the first cycle duration corresponding to the first cycle can be N time slots, and the second terminal can allocate a time slot to each first terminal within the first cycle, and use the analog receiving beam corresponding to each first terminal to receive the corresponding reference signal in the time slot corresponding to each first terminal in turn.
  • the first cycle duration indicated by the first information can be used to enable the first terminal to determine the second cycle duration corresponding to the second cycle used when the first terminal sends a reference signal.
  • the second cycle can be considered as the sending cycle used by the first terminal when sending the reference signal, that is, the first terminal periodically sends the reference signal to the first terminal based on the second cycle.
  • the second cycle duration can be M times the first cycle duration, and M is a positive integer greater than or equal to 1. If M is equal to 1, it means that the first terminal uses the same second cycle duration as the first cycle duration corresponding to the first cycle to send the reference signal; if M is greater than 1, it means that the first terminal uses a second cycle duration that is an integer multiple of the first cycle duration corresponding to the first cycle to send the reference signal.
  • the second cycle duration corresponding to the second cycle is N*M time slots.
  • the size of M can be set according to the actual needs of the first terminal.
  • the above information indicated by the first information can be sent by the same message, or can be sent by different messages, which is not specifically limited here.
  • the first terminal may receive first information from the second terminal, and the first information may be used to indicate that a reference signal periodically sent by the first terminal overlaps or conflicts with a reference signal sent by another terminal. After receiving the first information, the first terminal may adjust the configuration of the reference signal periodically sent by the first terminal, and send the adjusted configuration to the second terminal, so that the second terminal updates the configuration of receiving the reference signal of the first terminal according to the adjusted configuration.
  • the first terminal periodically sends a reference signal to the second terminal using the analog transmit beam corresponding to the second terminal based on the adjusted configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the adjusted configuration.
  • the second terminal may also The adjusted configuration re-determines whether the reference signal sent by the first terminal still overlaps or conflicts with the reference signals sent by other terminals; if there is still overlap or conflict, the second terminal can send the first information to the first terminal again, so that the first terminal adjusts the configuration of the reference signal again until the reference signal no longer overlaps or conflicts with the reference signals sent by other terminals; if there is no overlap or conflict, the second terminal can choose to send or not send the configuration determination information to the first terminal.
  • the first terminal can adjust the configuration of periodically sending the reference signal after receiving the first information indicating that the reference signal overlaps or conflicts from the second terminal, so as to avoid overlap or conflict with the reference signals sent by other terminals, and avoid the failure of reference signal reception due to the inability of the second terminal to clearly simulate the receiving beam, thereby not having any impact on beam failure detection and beam failure recovery.
  • the first terminal may receive first information from the second terminal, where the first information may be used to indicate a first cycle duration; the first cycle duration is the duration of a first cycle for the second terminal to receive a reference signal.
  • the first terminal can determine, based on the first cycle duration, a second cycle duration corresponding to the second cycle used by the first terminal to send a reference signal, wherein the second cycle duration corresponding to the second cycle can be M times the first cycle duration, and M is a positive integer greater than or equal to 1.
  • the interval between each reference signal is the duration of the second period; if the first terminal determines to send a reference signal to the second terminal in multiple first sub-periods of each second period, the interval between two adjacent reference signals is an integer multiple of the duration of the first period. Accordingly, the second terminal can use an analog receiving beam corresponding to the first terminal at a fixed time domain position in each first period to receive the reference signal sent by the first terminal.
  • the first terminal can flexibly adjust the second cycle duration corresponding to the second cycle of sending the reference signal and adjust the frequency of sending the reference signal by receiving the first cycle duration from the second terminal. This can avoid overlap or conflict with reference signals sent by other terminals, and avoid failure to receive reference signals due to the second terminal's inability to clearly simulate the receiving beam, thereby not causing any impact on beam failure detection and beam failure recovery.
  • the duration of the second cycle is the duration of M first cycles, it can be considered that the second cycle includes M sub-cycles, and the cycle duration of each sub-cycle is the duration of the first cycle.
  • the first terminal can determine at least one first sub-cycle from the M sub-cycles for sending a reference signal, and determine the candidate time domain resources that can be used to send the reference signal in the first sub-cycle based on the unoccupied time domain positions in the first cycle, and determine the time domain resources for sending the reference signal from the candidate time domain resources that can be used to send the reference signal in the first sub-cycle, and then determine the time domain position for sending the reference signal.
  • the first terminal can send a reference signal to the second terminal using an analog transmit beam corresponding to the second terminal at the time domain position determined in the first sub-cycle of each second cycle.
  • the first terminal can send the adjusted configuration of the reference signal to the second terminal, so that the second terminal determines the time domain position allocated to the reference signal corresponding to the first terminal in the first period based on the adjusted configuration, and uses the analog receiving beam corresponding to the first terminal to periodically receive the reference signal sent by the first terminal at this time domain position in each first period.
  • the first information received by the first terminal from the second terminal may include a resource indication for indicating adjustment of the configuration of the reference signal, which may be referred to as an adjustment indication or an adjustment codebook, and may be represented by a bitmap, for example; wherein the length of the resource indication may be used to indicate that the first period corresponds to the first period duration, for example, if the length of the resource indication is N bits, it indicates that the first period duration is N time slots, and each bit corresponds to one time slot in the N time slots; the indication content of the resource indication may be used to indicate an unoccupied time domain in the first period, for example, a bit assigned a value of 1 or 0 may be used to indicate an unoccupied time domain position in the first period.
  • a resource indication for indicating adjustment of the configuration of the reference signal which may be referred to as an adjustment indication or an adjustment codebook, and may be represented by a bitmap, for example; wherein the length of the resource indication may be used to indicate that the first period corresponds to the first period duration, for example,
  • the resource indication received by the first terminal from the second terminal is 011
  • the first cycle duration is 3 time slots
  • the first time slot corresponding to the bit of 0 in each first cycle is an unoccupied time slot.
  • the terminal can determine that the second period duration corresponding to the second period for periodically sending CSI-RS is 3M time slots, and the first terminal can determine the first sub-period from the M sub-periods, and determine the first time slot in the first sub-period as the time slot for sending CSI-RS.
  • the first terminal can use the analog transmission beam corresponding to the second terminal in the first time slot of the first sub-period of each second period to send a reference signal to the second terminal.
  • the second terminal can use the analog reception beam corresponding to the first terminal in the first time slot of each first period to periodically receive the reference signal sent by the first terminal.
  • the first terminal can flexibly adjust the configuration of sending the reference signal by receiving the first cycle duration and the unoccupied time domain position in the first cycle from the second terminal, thereby avoiding overlap or conflict with reference signals sent by other terminals, and avoiding the failure of reference signal reception due to the inability of the second terminal to clearly simulate the receiving beam, and thus will not have any impact on beam failure detection and beam failure recovery.
  • the first terminal may receive first information from the second terminal, and the first information may be used to indicate a first cycle duration corresponding to the first cycle and a time domain position allocated for the reference signal in the first cycle. After receiving the first information, the first terminal may determine a second cycle duration of a second cycle in which the first terminal sends a reference signal based on the received first cycle duration, and determine a time domain position for sending the reference signal in the second cycle based on the time domain position allocated for the reference signal in the first cycle.
  • the duration of the second cycle is the duration of M first cycles
  • the second cycle includes M sub-cycles
  • the cycle length of each sub-cycle is the duration of the first cycle
  • the first terminal can determine at least one first sub-cycle from the M sub-cycles for sending a reference signal, and based on the time domain position allocated to the reference signal in the first cycle, determine the time domain position for sending the reference signal in the first sub-cycle as the time domain position for sending the reference signal in the second cycle; wherein, the time domain position for sending the reference signal in the first sub-cycle corresponds to the time domain position allocated to the reference signal in the first cycle.
  • the second terminal allocates different time domain positions to reference signals corresponding to different first terminals in the first period.
  • the first information received by the first terminal from the second terminal may include a resource indication for indicating adjustment of the configuration of the reference signal, which may be referred to as an adjustment indication or an adjustment codebook; wherein the length of the resource indication may be used to indicate that the first period corresponds to the first period duration, for example, if the length of the resource indication is N bits, it indicates that the first period duration is N time slots, and each bit corresponds to one time slot in the N time slots; the indication content of the resource indication may be used to indicate the time domain position allocated for the reference signal in the first period, for example, a bit assigned a value of 1 or 0 may be used to indicate the time domain position allocated for the reference signal in the first period.
  • a resource indication for indicating adjustment of the configuration of the reference signal which may be referred to as an adjustment indication or an adjustment codebook
  • the length of the resource indication may be used to indicate that the first period corresponds to the first period duration, for example, if the length of the resource indication is N bits, it indicates that the first period duration is N
  • the N bits of the resource indication may include only one bit of 1, and the other bits are all 0, and the time slot allocated to the reference signal in the N time slots of the first period is represented by the position of the bit of 1 in the N bits.
  • the resource indication received by the first terminal from the second terminal is 001
  • the first cycle duration is 3 time slots
  • the third time slot corresponding to the bit of 1 in each first cycle is the time slot allocated for the reference signal.
  • the first terminal can determine that the second cycle duration corresponding to the second cycle for periodically sending CSI-RS is 3M time slots, and the first terminal can determine the first sub-cycle from the M sub-cycles, and determine the third time slot in the first sub-cycle as the time slot for sending CSI-RS.
  • the first terminal can use the analog transmission beam corresponding to the second terminal in the third time slot of the first sub-cycle of each second cycle to send a reference signal to the second terminal.
  • the second terminal can use the analog reception beam corresponding to the first terminal in the third time slot of each first cycle to periodically receive the reference signal sent by the first terminal.
  • the first terminal can flexibly adjust the configuration of sending the reference signal by receiving the first cycle duration and the time domain position allocated to the reference signal in the first cycle from the second terminal, thereby avoiding overlap or conflict with reference signals sent by other terminals, and avoiding failure of reference signal reception due to the inability of the second terminal to clearly simulate the receiving beam, and thus will not have any impact on beam failure detection and beam failure recovery.
  • the periodic transmission of reference information by the first terminal refers to the periodic transmission of reference signals to the second terminal within a preset time period
  • the periodic reception of reference signals by the second terminal also refers to the periodic reception of reference signals from each first terminal within the preset time period.
  • the preset time period may include at least one second period, and the first terminal may periodically transmit reference signals to the second terminal based on the second period within the preset time period.
  • the first information received by the first terminal from the second terminal may also be used to indicate the starting position of the time period for the first terminal to periodically transmit the reference signal in the system frame, that is, the starting position for starting timing the second period in the system frame.
  • the first terminal may determine the starting position of the time period for the first terminal to periodically transmit the reference signal in the system frame based on the first information, that is, to determine the boundary of the second period corresponding to the first terminal in the system frame.
  • the starting position may be represented by a time slot offset.
  • the starting positions of the time periods during which different first terminals periodically send reference signals in the system frame are same.
  • the first terminal can align the boundary of the second period corresponding to the first terminal in the system frame by receiving the starting position of the time period in which the first terminal periodically sends the reference signal from the second terminal, thereby avoiding overlap or conflict of reference signals caused by misaligned boundaries.
  • the second terminal determines the configuration of the CSI-RS periodically sent by each first terminal connected to it according to the high-level configuration, determines the CSI-RS that may overlap according to the time domain resources occupied by each CSI-RS, and sends first information to the corresponding first terminal, wherein the first information includes a resource indication for adjusting the configuration of the CSI-RS.
  • the length of the resource indication is N bits, which is used to indicate that the first cycle duration corresponding to the first cycle is N time slots, and each bit in the resource indication is used to indicate the corresponding time slot;
  • the N-bit resource indication sent by the second terminal to different first terminals includes only one bit that is 1, and the remaining N-1 bits are 0; the position of the bit that is 1 in the resource indication indicates the time slot in which the first terminal sends the reference signal in the N time slots of the first period;
  • the bits that are 1 in the resource indication sent by the second terminal to different terminals are at different bit positions in the resource indication, indicating that it is sent in different time slots within the N time slots.
  • the first information sent by the second terminal to the first terminal may also include the time slot offset of the time period in which the first terminal periodically sends CSI-RS in the system frame.
  • Different first terminals periodically send CSI-RS in different time slots within the N time slots of the first period, but if N time slots are used as the second period for sending CSI-RS, the overall time slot offset of the second period in the system frame is the same for different first terminals.
  • the first terminal receives first information sent by a second terminal, wherein the first information includes a resource indication for adjusting the configuration of the CSI-RS and a time slot offset in a system frame for a time period in which the first terminal periodically sends the CSI-RS.
  • the first terminal can flexibly adjust the configuration of the periodically sent CSI-RS in combination with its own configuration information.
  • different first terminals can determine the overall time slot offset of the second period of sending CSI-RS in the system frame according to the time slot offset in the system frame, and determine the time slot for sending CSI-RS in the second period according to the resource indication. Location;
  • the first terminals that establish a connection with the second terminal include UE1, UE2, and UE3.
  • the resource indication carried in the first information received by each first terminal from the second terminal is shown in the following Table 1:
  • the first terminal UE1 According to the resource indication 100 sent to the first terminal UE1, it is determined that the first terminal UE1 can send the CSI-RS in the first time slot of each second period.
  • the first terminal UE1 can send the CSI-RS in the third time slot of each second period.
  • the sub-time slots consisting of the first three time slots of the second cycle are determined according to the resource indication 010 sent to the first terminal UE3.
  • the CSI-RS is sent in the second time slot in the cycle.
  • the time slot offset of the second period corresponding to UE1, UE2 and UE3 based on the system frame boundary can be determined according to the value of the time slot offset reported by the second terminal.
  • FIG3C shows a schematic diagram of resources of CSI-RS periodically sent by different first terminals after receiving resource indication adjustment.
  • the first terminals UE1, UE2 and UE3 all start timing the corresponding second period at the same time slot offset position after the start of the system frame, and send CSI-RS based on the corresponding second period respectively.
  • CSI-RS is sent in the first time slot of every three time slots
  • CSI-RS is sent in the third time slot of every three time slots
  • CSI-RS is sent in the second time slot of every six time slots.
  • the first terminals that establish a connection with the second terminal include UE1, UE2, UE3 and UE4, and the resource indication carried in the first information received by each first terminal from the second terminal is shown in the following Table 2:
  • the first terminal UE1 According to the resource indication 1000 sent to the first terminal UE1, it is determined that the first terminal UE1 can send the CSI-RS in the first time slot of each second period.
  • the first terminal UE1 can send the CSI-RS in the third time slot of each second period.
  • the resource indication 0100 sent to the first terminal UE3 it is determined that the CSI-RS is sent in the second time slot of the sub-cycle composed of the first 4 time slots of the second cycle.
  • the resource indication 0001 sent to the first terminal UE3 it is determined that the CSI-RS is sent in the 4th time slot in the sub-cycle consisting of the last 4 time slots of the second cycle.
  • the time slot offset of the second period corresponding to UE1, UE2, UE3 and UE4 based on the system frame boundary can be determined according to the time slot offset value reported by the second terminal.
  • FIG3D shows a schematic diagram of resources of CSI-RS periodically sent by different first terminals after receiving resource indication adjustment.
  • the first terminals UE1, UE2, UE3 and UE4 all start timing the corresponding second period at the same time slot offset position after the start of the system frame, and send CSI-RS based on the corresponding second period respectively.
  • CSI-RS is sent in the first time slot of every 4 time slots; for UE2, after starting to time the second period, CSI-RS is sent in the third time slot of every 4 time slots; for UE3, after starting to time the second period, CSI-RS is sent in the second time slot of every 8 time slots; for UE4, after starting to time the second period, CSI-RS is sent in the eighth time slot of every 8 time slots.
  • the second terminal may periodically check whether periodically received reference signals overlap or conflict; or, after establishing a SideLink connection with a new first terminal, check whether the reference signal corresponding to the new first terminal overlaps or conflicts with the reference signals corresponding to other first terminals. If the second terminal determines that the reference signals overlap or conflict, it may send the first information to each first terminal, or send the first information to the first terminal corresponding to the reference signal with overlap or conflict. The first information is sent to reconfigure the reference signals periodically sent by each first terminal so that the reference signals no longer overlap or conflict with each other.
  • FIGS. 3A-3D may be implemented independently or in combination with at least one other embodiment in the present disclosure.
  • the specific implementation may be selected as needed and the present disclosure is not limited thereto.
  • an embodiment of the present disclosure proposes a method for sending a sidelink periodic reference signal.
  • Figure 4 is a schematic flow chart of a method for sending a sidelink periodic reference signal according to an embodiment of the present disclosure. The method for sending a sidelink periodic reference signal shown in this embodiment can be executed by a second terminal.
  • the sidelink periodic reference signal sending method may include the following steps:
  • step S401 first information is sent to at least one first terminal, where the first information is used to instruct the first terminal to periodically send a reference signal.
  • the second terminal may determine the configuration of the CSI-RS corresponding to the first terminal, and then send first information to the first terminal, where the first information is used to instruct the first terminal to periodically send CSI-RS to the second terminal.
  • the first terminal determines the configuration of periodically sending CSI-RS to the second terminal based on the reception of the first information, and periodically sends CSI-RS to the second terminal using the simulated transmit beam corresponding to the second terminal based on the configuration.
  • the second terminal periodically receives the CSI-RS sent by the first terminal from the first terminal using the simulated receive beam corresponding to the first terminal based on the configuration.
  • the reference signal may be a reference signal that is sent aperiodically, or may be a reference signal that is sent periodically.
  • the reference signal may be a CSI-RS that is sent periodically.
  • the second terminal may first determine the configuration of the CSI-RS corresponding to each first terminal according to actual needs, such as determining the resources of the CSI-RS corresponding to each first terminal, and then send first information to each first terminal respectively, wherein the first information is used to instruct each first terminal to periodically send CSI-RS to the second terminal, so that each first terminal determines its corresponding configuration for periodically sending CSI-RS based on the received first information.
  • Each first terminal may periodically send CSI-RS to the second terminal using an analog transmission beam corresponding to the second terminal based on the configuration for periodically sending CSI-RS.
  • the second terminal may periodically receive the corresponding CSI-RS from each first terminal using an analog reception beam corresponding to each first terminal.
  • the second terminal may determine the configuration of periodically receiving the corresponding CSI-RS from each first terminal, and based on the configuration corresponding to each first terminal, The configuration of the CSI-RS uses the simulated receiving beam corresponding to each first terminal to receive the CSI-RS from each first terminal.
  • the configuration of the CSI-RS corresponding to each first terminal may be indicated by a higher layer of the second terminal, or indicated by each first terminal respectively.
  • the second terminal When the second terminal determines that the CSI-RS periodically sent by multiple first terminals overlap or conflict, it can send first information to the corresponding first terminal, wherein the first information is used to instruct the first terminal to adjust the configuration of the periodically sent CSI-RS. After receiving the first information, the first terminal can adjust the configuration of the periodically sent CSI-RS so that the adjusted reference signal no longer overlaps or conflicts.
  • the first terminal may re-determine the configuration of the periodically transmitted reference signal according to the first information, and periodically transmit the reference signal to the second terminal using the analog transmit beam corresponding to the second terminal based on the updated configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the updated configuration.
  • the second terminal may determine the configuration of the reference signal periodically sent to the first terminal, wherein the configuration of the reference signal may include resources for the second terminal to receive the reference signal periodically sent by the first terminal. If the second terminal determines that the resources of the reference signal periodically sent by the first terminal overlap or conflict with the resources of the reference signal sent by other terminals, the second terminal may send the first information to the first terminal.
  • the first information may be used to instruct the first terminal to adjust the configuration of a reference signal sent periodically.
  • the first terminal may adjust the configuration of the periodically transmitted reference signal based on the first information, and periodically transmit the reference signal using the analog transmit beam corresponding to the second terminal based on the adjusted configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the adjusted configuration.
  • the first information is used to indicate at least one of the following: overlap or conflict between the reference signal and reference signals sent by other terminals; first cycle duration; the first cycle duration is the duration of the first cycle for the second terminal to receive the reference signal; the time domain position allocated to the reference signal in the first cycle; an unoccupied time domain position in the first cycle; the starting position of the time period for the first terminal to send the reference signal in the system frame.
  • the above information indicated by the first information may be sent by the same message, or may be sent by different messages, which is not specifically limited here.
  • the second terminal may send first information to at least one first terminal, where the first information may be used to indicate that a reference signal periodically sent by the first terminal overlaps or conflicts with a reference signal sent by other terminals.
  • the first terminal may adjust the configuration of the reference signal periodically sent by the first terminal, and send the adjusted configuration to the second terminal, so that the second terminal updates the configuration of receiving the reference signal of the first terminal according to the adjusted configuration.
  • the first terminal periodically sends a reference signal to the second terminal using the analog transmit beam corresponding to the second terminal based on the adjusted configuration.
  • the second terminal receives the reference signal using the analog receive beam corresponding to the first terminal based on the adjusted configuration.
  • the second terminal can also re-determine whether the reference signal sent by the first terminal still overlaps or conflicts with the reference signals sent by other terminals based on the adjusted configuration; if there is still overlap or conflict, the second terminal can send the first information to the first terminal again to enable the first terminal to adjust the configuration of the reference signal again until the reference signal no longer overlaps or conflicts with the reference signals sent by other terminals; if there is no overlap or conflict, the second terminal can choose to send or not send the configuration determination information to the first terminal.
  • the second terminal may send first information to at least one first terminal, and the first information may be used to indicate a first cycle duration; the first cycle duration is the duration of a first cycle for the second terminal to receive a reference signal.
  • the first cycle duration may be determined according to the relevant configuration of the second terminal, for example, the first cycle duration may correspond to the number of first terminals that send reference signals to the second terminal, and the number of time domain resources occupied by the first cycle duration needs to be greater than or equal to the number of terminals that periodically send reference signals to the second terminal.
  • the first terminal can determine, based on the first cycle duration, a second cycle duration corresponding to a second cycle for sending a reference signal by the first terminal, wherein the second cycle duration corresponding to the second cycle can be M times the first cycle duration, and M is a positive integer greater than 1.
  • the duration of the second cycle is the duration of M first cycles
  • the cycle length of each sub-cycle is the length of the first cycle
  • the first terminal can determine at least one first sub-cycle from the M sub-cycles for sending a reference signal, that is, the first terminal can send a reference signal in the first sub-cycle in the second cycle, but not in other sub-cycles.
  • the second terminal can use the analog receiving beam corresponding to the first terminal at a fixed time domain position in each first cycle to receive the reference signal sent by the first terminal.
  • the first cycle duration corresponds to the number of first terminals sending reference signals to the second terminal.
  • the second terminal may send first information to at least one first terminal, where the first information may be used to indicate a first cycle duration and unoccupied time domain positions in the first cycle.
  • the first terminal After receiving the first access information, the first terminal can determine the second cycle duration of the second cycle for sending the reference signal by the first terminal based on the received first cycle duration, and based on the unoccupied time domain positions in the first cycle, determine the time domain position for sending the reference signal from the unoccupied time domain positions in the second cycle.
  • the duration of the second cycle is the duration of M first cycles
  • the cycle duration of each sub-cycle is the duration of the first cycle
  • the first terminal can determine at least one first sub-cycle from the M sub-cycles for sending a reference signal, and determine the unoccupied time domain position in the first sub-cycle based on the unoccupied time domain position in the first cycle, and determine the time domain position for sending the reference signal from the unoccupied time domain position in the first sub-cycle.
  • the first terminal can send a reference signal to the second terminal using an analog transmit beam corresponding to the second terminal at the time domain position determined in the first sub-cycle of each second cycle.
  • the first terminal can send the adjusted configuration of the reference signal to the second terminal, so that the second terminal determines the time domain position allocated to the reference signal corresponding to the first terminal in the first period based on the adjusted configuration, and uses the analog receiving beam corresponding to the first terminal to periodically receive the reference signal sent by the first terminal at this time domain position in each first period.
  • the first information sent by the second terminal to at least one first terminal may include a resource indication for indicating adjustment of the configuration of the reference signal, which may be referred to as an adjustment indication or an adjustment codebook, and may be represented by a bitmap, for example; wherein the length of the resource indication may be used to indicate that the first cycle corresponds to the first cycle duration, for example, if the length of the resource indication is N bits, it indicates that the first cycle duration is N time slots, and each bit corresponds to one time slot in the N time slots; the indication content of the resource indication may be used to indicate an unoccupied time domain in the first cycle.
  • a resource indication for indicating adjustment of the configuration of the reference signal which may be referred to as an adjustment indication or an adjustment codebook, and may be represented by a bitmap, for example; wherein the length of the resource indication may be used to indicate that the first cycle corresponds to the first cycle duration, for example, if the length of the resource indication is N bits, it indicates that the first cycle duration is N time slots, and each bit corresponds to
  • the second terminal may send first information to at least one first terminal, wherein the first information
  • the information may be used to indicate a first cycle duration corresponding to the first cycle and a time domain position allocated to the reference signal in the first cycle.
  • the first terminal After receiving the first information, the first terminal can determine the second cycle duration of the second cycle for sending the reference signal by the first terminal based on the received first cycle duration, and determine the time domain position for sending the reference signal in the second cycle based on the time domain position allocated to the reference signal in the first cycle.
  • the duration of the second cycle is the duration of M first cycles
  • the second cycle includes M sub-cycles
  • the cycle length of each sub-cycle is the duration of the first cycle
  • the first terminal can determine at least one first sub-cycle from the M sub-cycles for sending a reference signal, and based on the time domain position allocated to the reference signal in the first cycle, determine the time domain position for sending the reference signal in the first sub-cycle as the time domain position for sending the reference signal in the second cycle; wherein, the time domain position for sending the reference signal in the first sub-cycle corresponds to the time domain position allocated to the reference signal in the first cycle.
  • the second terminal allocates different time domain positions to reference signals corresponding to different first terminals in the first period.
  • the first information sent by the second terminal to at least one first terminal may include a resource indication for indicating adjustment of the configuration of the reference signal, which may be referred to as an adjustment indication or an adjustment codebook; wherein the length of the resource indication may be used to indicate that the first cycle corresponds to the first cycle duration, for example, if the length of the resource indication is N bits, it indicates that the first cycle duration is N time slots, and each bit corresponds to one time slot in the N time slots; the indication content of the resource indication may be used to indicate the time domain position allocated to the reference signal in the first cycle.
  • the first information sent by the second terminal to at least one first terminal may also be used to indicate the starting position of the time period for the first terminal to periodically send the reference signal in the system frame.
  • the first terminal may determine the starting position of the time period for the first terminal to periodically send the reference signal in the system frame based on the first information, that is, determine the boundary of the second period corresponding to the first terminal in the system frame.
  • the starting position may be represented by a time slot offset.
  • time periods in which different first terminals periodically send reference signals have the same starting position in the system frame.
  • FIG. 4 can be implemented independently or in combination with at least one other embodiment of the present disclosure.
  • the embodiments may be combined for implementation and may be selected as needed, and the present disclosure is not limited thereto.
  • the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “symbol”, “code element”, “codebook”, “codeword”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
  • terms such as “moment”, “time point”, “time”, and “time position” can be interchangeable, and terms such as “duration”, “period”, “time window”, “window”, and “time” can be interchangeable.
  • CC component carrier
  • cell cell
  • frequency carrier frequency carrier
  • carrier frequency carrier frequency
  • obtain can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.
  • the present disclosure also provides embodiments of a terminal and a network device.
  • An embodiment of the present disclosure also proposes a terminal, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the terminal executes the sidelink periodic reference signal sending method described in the above embodiment.
  • FIG5 is a schematic block diagram of a device structure of a first terminal according to an embodiment of the present disclosure.
  • the first terminal 500 may be a sidelink periodic reference signal sending device, and the device includes a processing module 501 and a transceiver module 502 .
  • the transceiver module 502 is used to receive first information from the second terminal, wherein the first information The information is used to indicate the periodic sending of the reference signal; the processing module 501 is used to determine the configuration of the reference signal based on the first information.
  • the first information is used to indicate at least one of the following: overlap or conflict between the reference signal and reference signals sent by other terminals; duration of the first cycle; duration of the first cycle being the duration of the first cycle for the second terminal to receive the reference signal; a time domain position allocated to the reference signal in the first cycle; an unoccupied time domain position in the first cycle; and a starting position in the system frame of the time period for the first terminal to send the reference signal.
  • the first cycle duration corresponds to the number of first terminals that send reference signals to the second terminal.
  • the processing module 501 is also used to determine at least one of the following configurations of the reference signal based on the first information: determine a second cycle duration corresponding to a second cycle in which the first terminal sends a reference signal; wherein the second cycle duration is M times the first cycle duration, and M is a positive integer greater than 1; determine a time domain position for sending the reference signal in the second cycle; and determine a starting position of the time period in a system frame.
  • the time period includes at least one of the second cycles.
  • the processing module 501 is used to determine a first sub-period among the M sub-periods included in the second period, and the period length of the sub-period is the first period length; determine the time domain position for sending the reference signal in the first sub-period as the time domain position for sending the reference signal in the second period; wherein the time domain position for sending the reference signal in the first sub-period corresponds to the time domain position allocated to the reference signal in the first period.
  • the reference signal is a reference signal used for beam failure detection.
  • the reference signal is a channel state information reference signal CSI-RS.
  • modules included in the terminal are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.
  • FIG6 is a schematic block diagram of a second terminal according to an embodiment of the present disclosure.
  • the second terminal 600 may be a sidelink periodic reference signal sending device, and the device includes a processing module 601 and a transceiver module 602 .
  • the processing module 601 is used to determine the first signal corresponding to at least one first terminal.
  • the first information is used to instruct the first terminal to periodically send a reference signal;
  • the transceiver module 602 is used to send the first information to the at least one first terminal.
  • the first information is used to indicate at least one of the following: overlap or conflict between the reference signal and reference signals sent by other terminals; duration of the first cycle; duration of the first cycle being the duration of the first cycle for the second terminal to receive the reference signal; a time domain position allocated to the reference signal in the first cycle; an unoccupied time domain position in the first cycle; and a starting position in the system frame of the time period for the first terminal to send the reference signal.
  • the first cycle duration corresponds to the number of first terminals that send reference signals to the second terminal.
  • modules included in the network device are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.
  • the relevant parts refer to the partial description of the method embodiment.
  • the device embodiment described above is only schematic, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.
  • An embodiment of the present disclosure also proposes a communication device, comprising: one or more processors; a memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the processor calls the executable instructions so that the communication device executes the sidelink periodic reference signal sending method described in the above optional embodiment.
  • An embodiment of the present disclosure also proposes a communication system, comprising a second terminal and at least one first terminal, wherein the first terminal is configured to implement the sidelink periodic reference signal sending method described in the above optional embodiment, and the second terminal is configured to implement the sidelink periodic reference signal sending method described in the above optional embodiment.
  • An embodiment of the present disclosure further proposes a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the sidelink periodic reference signal sending method described in the above optional embodiment.
  • the present disclosure also provides a device for implementing any of the above methods.
  • a device is provided.
  • the device includes a unit or module for implementing each step executed by the terminal in any of the above methods.
  • another device is also proposed, including a unit or module for implementing each step executed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device such as an access network device, a core network function node, a core network device, etc.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it may also be a hardware circuit designed for artificial intelligence, which may be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DLP), or a computer programmable logic device (CLP). Processing Unit, DPU) etc.
  • NPU neural network processing unit
  • TPU tensor processing unit
  • DLP deep learning processing unit
  • CLP computer programmable logic device
  • FIG7 is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure.
  • the communication device 7100 may be a terminal (e.g., a first terminal or a second terminal, etc.), or may be a chip, a chip system, or a processor, etc. that supports the terminal to implement any of the above methods.
  • the communication device 7100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 7100 includes one or more processors 7101.
  • the processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the processor 7101 is used to call instructions so that the communication device 7100 executes any of the above methods.
  • the communication device 7100 further includes one or more memories 7102 for storing instructions.
  • the memory 7102 may also be outside the communication device 7100.
  • the communication device 7100 further includes one or more transceivers 7103.
  • the communication steps such as sending and receiving in the above method are executed by the transceiver 7103, and the other steps are executed by the processor 7101.
  • the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102.
  • the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices.
  • the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.
  • the communication device 7100 described in the above embodiment may be a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, Wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.; (6) Others, etc.
  • Fig. 8 is a schematic diagram of the structure of a chip 8200 provided in an embodiment of the present disclosure.
  • the communication device 7100 may be a chip or a chip system
  • the chip 8200 includes one or more processors 8201, and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above methods.
  • the chip 8200 further includes one or more interface circuits 8202, the interface circuits 8202 are connected to the memory 8203, the interface circuits 8202 can be used to receive signals from the memory 8203 or other devices, and the interface circuits 8202 can be used to send signals to the memory.
  • the interface circuit 8202 can read the instructions stored in the memory 8203 and send the instructions to the processor 8201.
  • the terms such as interface circuit, interface, transceiver pin, transceiver, etc. can be replaced with each other.
  • the chip 8200 further includes one or more memories 8203 for storing instructions.
  • the memory 8203 may be outside the chip 8200.
  • the present disclosure also proposes a program product, which, when executed by the communication device 7100, enables the communication device 7100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

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Abstract

La présente divulgation se rapporte au domaine technique des communications, et concerne en particulier un procédé d'envoi de signal de référence périodique de liaison latérale, un terminal et un support de stockage. Le procédé d'envoi de signal de référence périodique de liaison latérale consiste à : recevoir des premières informations en provenance d'un second terminal, les premières informations étant utilisées pour ordonner à un premier terminal d'envoyer périodiquement un signal de référence. Le second terminal connaît des configurations de signaux de référence envoyés par une pluralité de premiers terminaux connectés au second terminal, et par conséquent, il est possible de déterminer s'il existe un chevauchement ou un conflit entre les signaux de référence, et les configurations des signaux de référence sont déterminées sur la base d'une situation réelle, de telle sorte que le chevauchement ou le conflit entre les signaux de référence est évité, une défaillance de réception des signaux de référence, due à l'incapacité du second terminal de simuler clairement un faisceau de réception, est évitée, et ainsi une détection de défaillance de faisceau et une reprise après défaillance de faisceau ne sont pas affectées.
PCT/CN2023/134760 2023-11-28 2023-11-28 Procédé d'envoi de signal de référence périodique de liaison latérale, terminal et support de stockage Pending WO2025111805A1 (fr)

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CN202380079560.8A CN120303999A (zh) 2023-11-28 2023-11-28 旁链路周期性参考信号发送方法、终端和存储介质
PCT/CN2023/134760 WO2025111805A1 (fr) 2023-11-28 2023-11-28 Procédé d'envoi de signal de référence périodique de liaison latérale, terminal et support de stockage

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PCT/CN2023/134760 WO2025111805A1 (fr) 2023-11-28 2023-11-28 Procédé d'envoi de signal de référence périodique de liaison latérale, terminal et support de stockage

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WO2022173953A1 (fr) * 2021-02-11 2022-08-18 Qualcomm Incorporated Variation de domaine temporel pour transmission de signaux de référence en liaison latérale
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