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WO2024164125A1 - Procédé et appareil de transmission pour signal de référence - Google Patents

Procédé et appareil de transmission pour signal de référence Download PDF

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Publication number
WO2024164125A1
WO2024164125A1 PCT/CN2023/074672 CN2023074672W WO2024164125A1 WO 2024164125 A1 WO2024164125 A1 WO 2024164125A1 CN 2023074672 W CN2023074672 W CN 2023074672W WO 2024164125 A1 WO2024164125 A1 WO 2024164125A1
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WIPO (PCT)
Prior art keywords
time
reference signal
frequency
frequency resources
resource set
Prior art date
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Ceased
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PCT/CN2023/074672
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English (en)
Chinese (zh)
Inventor
赵群
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202380008010.7A priority Critical patent/CN116420411A/zh
Priority to PCT/CN2023/074672 priority patent/WO2024164125A1/fr
Publication of WO2024164125A1 publication Critical patent/WO2024164125A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of communication technology, and in particular to a reference signal transmission method and device.
  • RS reference signals
  • the present application proposes a reference signal transmission method and device, which provides a resource configuration scheme required for reference signal transmission that can be used for beam management in sidelink communications, thereby improving the accurate sidelink transmission of reference signals used for beam management.
  • a first aspect embodiment of the present application provides a method for transmitting a reference signal, which is applied to a sending user equipment (UE), the method comprising: obtaining a set of time-frequency resources configured for a reference signal, wherein the reference signal is used for beam management of sidelink communication; and using the time-frequency resources in the set of time-frequency resources to perform sidelink transmission of the reference signal.
  • UE sending user equipment
  • the time-frequency resource set is configured based on the time-frequency resources in the direct connection resource pool of the side link.
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSFCH transmission are frequency division multiplexed.
  • the reference signal uses the same time domain period and time domain offset value as the time frequency resource configuration of the PSFCH, so that the time frequency resources used by the reference signal and the time frequency resources of the PSFCH appear in the same time domain and occupy the same orthogonal frequency division multiplexing (OFDM) symbol as the PSFCH, and the time domain offset value is a slot offset value relative to the system frame number (SFN) 0 or the direct frame number (DFN) 0.
  • SFN system frame number
  • DNN direct frame number
  • the time domain resource information of the reference signal is the same as the time domain resource information of the PSFCH, and the frequency domain resource information of the reference signal is pre-configured or configured through downlink control signaling.
  • the time-frequency resource set is orthogonal to a first time-frequency resource set used for physical sidelink control channel (PSCCH) transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSCCH transmission are time division multiplexed (Time Division Multiplexing, TDM).
  • PSCCH physical sidelink control channel
  • the time-frequency resource set is orthogonal to a second time-frequency resource set used for physical sidelink shared channel (PSSCH) transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSSCH transmission are time-division multiplexed.
  • PSSCH physical sidelink shared channel
  • the time-frequency resource set supports the transmission of reference signals sent by multiple different UEs in the same time slot through time domain multiplexing (Time Domain Multiplexing), frequency domain multiplexing, or code domain multiplexing.
  • time domain multiplexing Time Domain Multiplexing
  • frequency domain multiplexing frequency domain multiplexing
  • code domain multiplexing code domain multiplexing
  • the time-frequency resource set when the time-frequency resources of the PSFCH do not exist in the direct-connect resource pool, the time-frequency resource set supports periodic resource configuration.
  • the time frequency resources used by the reference signal occupy the last part of the OFDM symbols of the sidelink OFDM symbols, and the previous OFDM symbol of the last part of the OFDM symbols is an automatic gain control (AGC) symbol of the reference signal.
  • AGC automatic gain control
  • the use of time-frequency resources in the time-frequency resource set for sidelink transmission of the reference signal includes: selecting the time-frequency resources in the time-frequency resource set according to downlink control signaling sent by a base station, or receiving direct control signaling sent by a UE, or autonomously by a sending UE, and using the selected time-frequency resources for sidelink transmission of the reference signal.
  • the downlink control signaling includes one of the following:
  • MACCE Media Access Control Element
  • DCI Downlink Control Information
  • the direct connection control signaling includes one of the following:
  • SCI Sidelink Control Information
  • the reference signal includes one of the following:
  • CSI-RS Channel-state information reference signal
  • S-SSB Sidelink SS block
  • SS is the abbreviation of synchronization signal
  • SRS Sounding Reference Signal
  • a second aspect embodiment of the present application provides a method for transmitting a reference signal, which is applied to a receiving UE, and the method comprises: receiving a reference signal transmitted by a sidelink, wherein the reference signal is used for beam management of sidelink communication, and the reference signal is transmitted using a time-frequency resource in a time-frequency resource set configured for the reference signal.
  • the time-frequency resource set is configured based on the time-frequency resources in the direct connection resource pool of the side link.
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSFCH transmission are frequency-division multiplexed.
  • the reference signal uses the same time domain period and time domain offset value as the time frequency resource configuration of the PSFCH, so that the time frequency resource used by the reference signal and the time frequency resource of the PSFCH appear in the same time domain and occupies the same OFDM symbol as the PSFCH, and the time domain offset value is the time domain offset value relative to the system frame number SFN0 or the direct frame number DFN0.
  • the time domain resource information of the reference signal is the same as the time domain resource information of the PSFCH, and the frequency domain resource information of the reference signal is pre-configured or configured through downlink control signaling.
  • the time-frequency resource set is orthogonal to the first time-frequency resource set used for PSCCH transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSCCH transmission are time division multiplexed.
  • the time-frequency resource set is orthogonal to a second time-frequency resource set used for PSSCH transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSSCH transmission are time-division multiplexed.
  • the time-frequency resource set supports the transmission of reference signals sent by multiple different UEs in the same slot through time domain multiplexing, frequency domain multiplexing, or code domain multiplexing.
  • the time-frequency resource set when the time-frequency resources of the PSFCH do not exist in the direct-connect resource pool, the time-frequency resource set supports periodic resource configuration.
  • the time frequency resources used by the reference signal occupy the last part of the OFDM symbols of the sidelink OFDM symbols, and the previous OFDM symbol of the last part of the OFDM symbols is the AGC symbol of the reference signal.
  • the reference signal is based on the downlink control signaling sent by the base station, or the direct control signaling sent by the receiving UE, or the sending UE autonomously selects the time-frequency resources in the time-frequency resource set, and uses the selected time-frequency resources for transmission.
  • the downlink control signaling includes one of the following:
  • the direct connection control signaling includes one of the following:
  • the reference signal includes one of the following:
  • the third aspect embodiment of the present application provides a reference signal transmission device, which is applied to a sending UE, and the device includes: an acquisition module, configured to acquire a set of time-frequency resources configured for a reference signal, wherein the reference signal is used for beam management of sidelink communication; a sending module, configured to use the time-frequency resources in the time-frequency resource set to perform sidelink transmission of the reference signal.
  • a fourth aspect of the present application provides a reference signal transmission device, which is applied to a receiving UE, and the device includes:
  • a receiving module is configured to receive a reference signal transmitted by a sidelink, wherein the reference signal is used for beam management of the sidelink communication, and the reference signal is transmitted using a time-frequency resource in a time-frequency resource set configured for the reference signal.
  • the fifth aspect embodiment of the present application provides a communication device, which includes: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method as the first aspect embodiment or the second aspect embodiment of the present application.
  • the sixth aspect embodiment of the present application provides a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method of the first aspect embodiment or the second aspect embodiment of the present application can be implemented.
  • the embodiment of the present application provides a method and device for transmitting a reference signal, which provides a resource configuration scheme required for the transmission of a reference signal that can be used for beam management in sidelink communication, and can improve the accurate sidelink transmission of the reference signal used for beam management.
  • the sending UE obtains a set of time-frequency resources configured for the reference signal, wherein the reference signal is used for beam management of the sidelink communication; then the time-frequency resources in the time-frequency resource set are used to perform sidelink transmission of the reference signal, thereby measuring a beam with better quality, and then performing sidelink communication between UEs through the beam with better quality.
  • FIG1 is a schematic diagram of an exemplary architecture according to an embodiment of the present application.
  • FIG2 is a schematic diagram of a flow chart of a reference signal transmission method according to an embodiment of the present application.
  • FIG3 is a schematic diagram of a flow chart of a reference signal transmission method according to an embodiment of the present application.
  • FIG4 is a schematic diagram of a flow chart of a reference signal transmission method according to an embodiment of the present application.
  • FIG5 is a block diagram of a reference signal transmission device according to an embodiment of the present application.
  • FIG6 is a block diagram of a reference signal transmission device according to an embodiment of the present application.
  • FIG7 is a schematic diagram of the structure of a communication device according to an embodiment of the present application.
  • FIG8 is a schematic diagram of the structure of a chip provided in an embodiment of the present application.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • word "if” as used herein may be interpreted as "at the time of” or "when” or "in response to determination".
  • the communication interface between UE and UE is called PC-5 interface.
  • the link for transmitting data between UE and UE is called side link.
  • three transmission modes can be supported on the side link, including: unicast, multicast and broadcast.
  • the sending UE 11 sends SCI on the PSCCH channel and sends the second stage SCI on the PSSCH channel.
  • the receiving UE 12 performs HARQ-ACK feedback on the PSSCH on the PSFCH.
  • HARQ Hybrid Automatic Repeat reQuest
  • beam management is to dynamically select the direction and frequency of the beam for communication between UEs (such as the transmitting UE 11 and the receiving UE 12) based on the channel quality.
  • the beam involved in this embodiment can refer to beam, or spatial relation information, spatial setting, spatial Rx parameter, Tx spatial filter, spatial domain receive filters, TCI (transmission configuration indication) state, QCL (quasi co location) type D, etc.
  • the reference signal is a "pilot" signal, which is a known signal provided by the transmitting UE 11 to the receiving UE 12 for channel estimation or channel detection. In this embodiment, it can be used for beam management of sidelink communication.
  • LTE vehicle wireless communication technology (Vehicle to X, V2X) was formulated in Long Term Evolution (LTE) Release 14, supporting communication between vehicle networking devices (such as vehicles and vehicles, vehicles and people, and vehicles and roadside nodes) through direct links; then LTE V2X technology was enhanced in Release 15 to support functions such as carrier aggregation.
  • LTE Long Term Evolution
  • 3GPP started the work of using the NR interface to support vehicle networking communications, and completed 5G Sidelink in Release 16, supporting direct communication between vehicle networking devices through NR technology.
  • NR Sidelink was further enhanced in terms of energy saving and reliability.
  • Beam management in NR downlink (DL) or uplink (UL) communications is performed through reference signals such as downlink synchronization signal and physical broadcast channel (PBCH) block (SSB), CSI-RS or uplink SRS.
  • PBCH physical broadcast channel
  • CSI-RS uplink SRS.
  • the reference signal format transmitted on the SL is similar to the DL reference signal, but can only be transmitted together with the PSSCH, and some resource elements (RE) on some OFDM symbols of the corresponding PSSCH are used as time-frequency resources for transmission.
  • the corresponding PSSCH can be transmitted using other REs on the same OFDM symbol that are not used by the reference signal.
  • the same UE uses the same analog beam for sending/receiving on the same OFDM symbol. Therefore, according to the resource configuration scheme of the reference signal for DL/UL communication, the CSI-RS transmitted on the SL can only use the same analog beam as its corresponding PSSCH. However, beam management needs to support the same UE to use different beams to send or receive reference signals. If the resource configuration scheme of the reference signal for DL/UL communication is still used, it will cause repeated and unnecessary PSSCH transmission, reducing the resource utilization efficiency of the side link.
  • this embodiment proposes a reference signal transmission method and device, which provides a resource configuration scheme required for reference signal transmission that can be used for beam management in sidelink communications, thereby improving the accurate sidelink transmission of reference signals used for beam management.
  • FIG2 shows a schematic flow chart of a reference signal transmission method according to an embodiment of the present application. As shown in FIG2, the method is applied to the sending UE side (such as the sending UE 11 in FIG1) and may include the following steps.
  • Step 201 The sending UE obtains a set of time-frequency resources configured for a reference signal.
  • the reference signal is used for beam management of sidelink communication.
  • an independent time-frequency resource set may be configured for the reference signal for beam management used for sidelink communication.
  • the time-frequency resource set includes time-frequency resources used for transmitting the parameter signal in the sidelink, and specifically may include time domain (time domain) resources and frequency domain (frequency domain) resources used for transmitting the parameter signal in the sidelink.
  • the time frequency resources used by the reference signal from the time frequency resource set do not overlap with the time frequency resources used for PSSCH transmission, that is, the time frequency resources used by the UE to send the reference signal in the sidelink communication belong to resources other than the time frequency resources used for the corresponding PSSCH transmission.
  • the reference signal can be sent separately on the sidelink, and some REs on some OFDM symbols of the corresponding PSSCH are not used as time frequency resources for transmission.
  • Using different beams to send reference signals for the same UE can effectively reduce repeated and unnecessary PSSCH transmissions and improve the resource utilization efficiency of the sidelink.
  • the independent time-frequency resource set may be pre-configured in a chip on the UE side; or obtained according to the downlink signaling configuration of the base station when the UE is within the network coverage.
  • Step 202 The sending UE uses the time-frequency resources in the time-frequency resource set to perform sidelink transmission of a reference signal.
  • the time-frequency resources in the time-frequency resource set can be used for sidelink transmission of the reference signal.
  • the reference signals transmitted on different time-frequency resources can be orthogonalized by time division multiplexing, frequency division multiplexing, or code division multiplexing, so that the beam with better quality can be measured, and then the sidelink communication between UEs can be carried out through the beam with better quality.
  • the reference signal transmission method provided in this embodiment provides a resource configuration scheme required for reference signal transmission that can be used for beam management in sidelink communication, which can improve the accurate sidelink transmission of reference signals used for beam management. It supports the reference signal to be sent separately on the sidelink. When the reference signal is sent separately, the resource multiplexing problem between the reference signal and other existing SL transmissions can be solved.
  • FIG3 shows a flow chart of a method for transmitting a reference signal according to an embodiment of the present application. Based on the embodiment shown in FIG2 , as shown in FIG3 , the method is applied to the sending UE side (such as the sending UE 11 in FIG1 ) and may include the following steps.
  • Step 301 A sending UE obtains a set of time-frequency resources configured for a reference signal.
  • the reference signal is used for beam management of sidelink communication.
  • the reference signal used for sidelink beam management may include one of CSI-RS, direct S-SSB and SRS, or include other RS signal formats, etc.
  • CSI-RS will be mainly used as an example for explanation below.
  • the time-frequency resource set may be obtained based on the time-frequency resource configuration in the direct resource pool of the side link. Different UEs may use the time-frequency resources in the time-frequency resource set to transmit SLCSI-RS.
  • the time-frequency resources included in the direct resource pool may be used for SLCSI-RS transmission, PSFCH transmission, PSCCH transmission, and PSSCH transmission, etc.
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for PSFCH transmission are frequency division multiplexing (FDM).
  • FDM uses frequency to distinguish signals transmitted simultaneously on the same channel, and each signal is separated in the frequency domain and mixed in the time domain.
  • the reference signal may use the same time domain period and time domain offset value as the time frequency resource configuration of the PSFCH, so that the time frequency resources used by the reference signal and the time frequency resources of the PSFCH appear in the same time domain and occupy the same OFDM symbol as the PSFCH, wherein the time domain period may be the period of a time unit (such as a slot, etc.), such as when the slot period is 4, the reference signal is transmitted once in every 4 slots; when the slot period is 2, the reference signal is transmitted once in every 2 slots.
  • the time domain offset value is the time domain offset value relative to SFN0 or DFN0.
  • the time-frequency resources of SLCSI-RS and PSFCH resources appear in the same slot and occupy the same OFDM symbol as PSFCH.
  • PSFCH resources support periodic resource configuration, it can be configured through the downlink signaling of the base station or pre-configured slot period and slot offset value (starting offset value) relative to SFN0/DFN0, and CSI-RS can use the same period and offset value as PSFCH resource configuration to determine its time domain position.
  • the reference signal may not use the same slot period and slot offset value as the time-frequency resource configuration of the PSFCH.
  • the time domain resource information of the reference signal may be the same as the time domain resource information of the PSFCH, and the frequency domain resource information of the reference signal may be pre-configured or configured through the downlink control signaling of the base station. For example, the starting physical resource block (PRB) position and the number of occupied PRBs are configured.
  • PRB physical resource block
  • the time-frequency resources of SL CSI-RS occupy the same OFDM symbol position as PSFCH resources.
  • PSFCH resources occupy the second-to-last OFDM symbol of all SLOFDM symbols in a slot (the penultimate OFDM symbol is used for the protection interval), and the third-to-last OFDM symbol is the AGC symbol of PSFCH.
  • CSI-RS also occupies the second-to-last OFDM symbol of all SLOFDM symbols in a slot, and uses the third-to-last OFDM symbol as the AGC symbol.
  • SLCSI-RS and PSFCH can also appear in different slots, such as the SLCSI-RS can be independently configured with a period and a time domain offset value relative to SFN0/DFN0.
  • the OFDM symbol in the slot it occupies is the same as that in the slot with PSFCH.
  • the time-frequency resource set is orthogonal to (non-overlapping with) the first time-frequency resource set used for PSCCH transmission
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for PSCCH transmission are time division multiplexed (TDM).
  • TDM distinguishes signals transmitted sequentially on the same channel in time, and each signal is separated in the time domain and mixed in the frequency domain.
  • SLCSI-RS resources and PSFCH resources are frequency-division multiplexed through FDM
  • SLCSI-RS resources and PSCCH resources are time-division multiplexed through TDM.
  • PSFCH resources and PSCCH resources are TDM in one slot, so if CSI-RS occupies the same OFDM as PSFCH Symbols, then the CSI-RS resources and PSCCH resources are also in a TDM relationship.
  • the CSI-RS resources and PSCCH resources are time-division multiplexed through TDM.
  • the time frequency resource set is orthogonal (non-overlapping) to a second time frequency resource set used for PSSCH transmission, and the time frequency resources used by the reference signal in the time frequency resource set and the time frequency resources used for PSSCH transmission are time division multiplexed.
  • SLCSI-RS resources and PSFCH resources are frequency-division multiplexed through FDM
  • SLCSI-RS resources and PSSCH resources are time-division multiplexed through TDM.
  • PSFCH resources and PSSCH resources are TDM in one slot, so if CSI-RS occupies the same OFDM symbol as PSFCH, then CSI-RS resources and PSSCH resources are also TDM.
  • SLCSI-RS resources and PSSCH resources are time-division multiplexed through TDM.
  • the time-frequency resource set supports the transmission of reference signals sent by multiple different UEs in the same slot through time domain multiplexing, frequency domain multiplexing, or code domain multiplexing.
  • CSI-RS sent by multiple different UEs can be transmitted in the same slot by time domain/frequency domain/code domain multiplexing. This can solve the problem that CSI-RS sent by different UEs use the same time-frequency code resources, which will cause interference between them.
  • the time-frequency resource set may support periodic resource configuration, for example, supporting periodic CSI-RS resource configuration, specifically configuring the period and starting offset value of the CSI-RS resource.
  • the time-frequency resources used by the reference signal occupy the last part of the OFDM symbol of the sidelink OFDM symbol, and the previous OFDM symbol of the last part of the OFDM symbol is the AGC symbol of the reference signal.
  • the AGC symbol can be used to adjust the resources of the automatic power amplifier of the receiving UE, such as adjusting the power size. For example, when the CSI-RS is transmitted separately using a set of time-frequency resources, since the transmission power and transmission beam of the CSI-RS may be different from those of other SL signals in the same slot, a corresponding AGC symbol can be set so that the receiving UE can adjust the resources of the automatic power amplifier according to the AGC symbol.
  • There is an AGC symbol of an OFDM symbol before the CSI-RS symbol, such as the signal transmitted on the AGC symbol is the same as the first OFDM symbol of the CSI-RS signal.
  • Step 302 The sending UE selects time-frequency resources in the time-frequency resource set according to the downlink control signaling sent by the base station, or the direct connection control signaling sent by the receiving UE, or the sending UE autonomously, and uses the selected time-frequency resources for sidelink transmission of the reference signal.
  • the downlink control signaling may include one of RRC signaling, MACCE, and DCI, such as the downlink control signaling includes RRC signaling, MACCE, DCI, etc.
  • the direct control signaling includes one of sidelink RRC signaling, MACCE, and SCI, such as the direct control signaling may include SidelinkRRC, MAC CE, SCI, etc.
  • the sending UE selects the CSI-RS time-frequency resources in the CSI-RS time-frequency resource set independently according to the downlink control signaling sent by the base station, or the direct connection control signaling sent by the receiving UE, and uses the selected time-frequency resources to perform sidelink transmission of the CSI-RS.
  • a resource configuration scheme required for reference signal transmission for beam management is provided in the sidelink communication.
  • a RS time-frequency resource set for beam management can be configured in the direct resource pool, and in one slot, the time-frequency resources used by the RS in the time-frequency resource set and the time-frequency resources used for PSFCH transmission are frequency-division multiplexed, and the time-frequency resources used for PSCCH/PSSCH transmission are time-division multiplexed, thereby improving the accurate sidelink transmission of the reference signal for beam management.
  • Using different beams to send reference signals for the same UE can effectively reduce repeated and unnecessary PSSCH transmissions and improve the resource utilization efficiency of the sidelink.
  • FIG4 shows a flow chart of a method for transmitting a reference signal according to an embodiment of the present application.
  • the method is applied to a receiving UE side (such as the receiving UE 12 in FIG1 ) and may include the following steps.
  • Step 401 A receiving UE receives a reference signal transmitted by a sidelink.
  • the reference signal is used for beam management of sidelink communication, and the reference signal is transmitted using a time-frequency resource in a time-frequency resource set configured for the reference signal.
  • the reference signal for sidelink beam management may include one of CSI-RS, direct S-SSB, and SRS, or include other RS signal formats, etc.
  • an independent time-frequency resource set may be configured for a reference signal for beam management of sidelink communication, and the time-frequency resource set includes time-frequency resources used for transmission of the parameter signal in the sidelink, and specifically may include time domain resources and frequency domain resources used for transmission of the parameter signal in the sidelink.
  • the time-frequency resources used by the reference signal from the time-frequency resource set do not overlap with the time-frequency resources used for PSSCH transmission, that is, the time-frequency resources used by the UE to send the reference signal in the sidelink communication belong to resources other than the time-frequency resources used for the corresponding PSSCH transmission.
  • the time-frequency resource set may be configured based on the time-frequency resources in the direct-connect resource pool of the sidelink.
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for PSFCH transmission are frequency-division multiplexed.
  • the reference signal uses the same time domain period and time domain offset value as the time frequency resource configuration of the PSFCH, so that the time frequency resources used by the reference signal and the time frequency resources of the PSFCH appear in the same time domain and occupy the same OFDM symbols as the PSFCH, and the time domain offset value is a time domain offset value relative to SFN0 or DFN0.
  • the time domain resource information of the reference signal is the same as the time domain resource information of the PSFCH, and the frequency domain resource information of the reference signal is pre-configured or configured through downlink control signaling.
  • the time frequency resource set is orthogonal to the first time frequency resource set used for PSCCH transmission, and the time frequency resources used by the reference signal in the time frequency resource set and the time frequency resources used for PSCCH transmission are time division multiplexed.
  • the time frequency resource set is orthogonal to a second time frequency resource set used for PSSCH transmission, and the time frequency resources used by the reference signal in the time frequency resource set and the time frequency resources used for PSSCH transmission are time division multiplexed.
  • the time-frequency resource set supports transmission of reference signals sent by multiple different UEs in the same slot through time domain multiplexing, frequency domain multiplexing, or code domain multiplexing.
  • the time-frequency resource set when there are no time-frequency resources for PSFCH in the direct-connect resource pool, supports periodic resource configuration.
  • the time frequency resources used by the reference signal occupy the last part of the OFDM symbols of the sidelink OFDM symbols, and the OFDM symbol before the last part of the OFDM symbols is an AGC symbol of the reference signal.
  • the reference signal is transmitted based on downlink control signaling sent by the base station, or direct control signaling sent by the receiving UE, or the sending UE autonomously selects time-frequency resources in a time-frequency resource set, and uses the selected time-frequency resources.
  • the downlink control signaling may include one of RRC signaling, MACCE, and DCI, such as the downlink control signaling includes RRC signaling, MACCE, DCI, etc.
  • the direct control signaling includes one of sidelink RRC signaling, MACCE, and SCI, such as the direct control signaling may include SidelinkRRC, MAC CE, SCI, etc.
  • a resource configuration scheme required for reference signal transmission for beam management is provided in the sidelink communication.
  • a RS time-frequency resource set for beam management can be configured in the direct resource pool, and in one slot, the time-frequency resources used by the RS in the time-frequency resource set and the time-frequency resources used for PSFCH transmission are frequency-division multiplexed, and the time-frequency resources used for PSCCH/PSSCH transmission are time-division multiplexed, thereby improving the accurate sidelink transmission of the reference signal for beam management.
  • Using different beams to send reference signals for the same UE can effectively reduce repeated and unnecessary PSSCH transmissions and improve the resource utilization efficiency of the sidelink.
  • the methods provided by the embodiments of the present application are introduced from the perspectives of the sending UE and the receiving UE, respectively.
  • the UE may include a hardware structure and a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the functions may be performed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the present application also provides a reference signal transmission device. Since the reference signal transmission device provided in the embodiment of the present application corresponds to the reference signal transmission method provided in the above-mentioned embodiments, the implementation method of the reference signal transmission method is also applicable to the reference signal transmission device provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG5 is a schematic diagram of the structure of a reference signal transmission device provided in an embodiment of the present application.
  • the reference signal transmission device can be used to send a UE side.
  • the device may include: an acquisition module 51, configured to acquire a set of time-frequency resources configured for a reference signal, wherein the reference signal is used for beam management of sidelink communication; a sending module 52, configured to use the time-frequency resources in the time-frequency resource set for sidelink transmission of the reference signal.
  • the set of time-frequency resources is configured based on time-frequency resources in a direct-connection resource pool of the sidelink.
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSFCH transmission are frequency-division multiplexed.
  • the reference signal uses the same time domain period and time domain offset value as the time frequency resource configuration of the PSFCH, so that the time frequency resources used by the reference signal and the time frequency resources of the PSFCH appear in the same time domain and occupy the same OFDM symbols as the PSFCH, and the time domain offset value is a time domain offset value relative to the system frame number SFN0 or the direct frame number DFN0.
  • the time domain resource information of the reference signal is the same as the time domain resource information of the PSFCH, and the frequency domain resource information of the reference signal is pre-configured or configured through downlink control signaling.
  • the time-frequency resource set is orthogonal to the first time-frequency resource set used for PSCCH transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSCCH transmission are time-division multiplexed.
  • the time-frequency resource set is orthogonal to a second time-frequency resource set used for PSSCH transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSSCH transmission are time-division multiplexed.
  • the time-frequency resource set supports transmission of reference signals sent by multiple different UEs in the same slot through time domain multiplexing, or frequency domain multiplexing, or code domain multiplexing.
  • the time-frequency resource set when the time-frequency resources of the PSFCH do not exist in the direct-connect resource pool, the time-frequency resource set supports periodic resource configuration.
  • the time and frequency resources used by the reference signal occupy the last OFDM symbol of the sidelink OFDM symbol, and the OFDM symbol before the last OFDM symbol is an automatic gain control AGC symbol of the reference signal.
  • the sending module 52 is specifically configured to select time-frequency resources in the time-frequency resource set based on downlink control signaling sent by the base station, or direct control signaling sent by the receiving UE, or the sending UE, and use the selected time-frequency resources for sidelink transmission of the reference signal.
  • the downlink control signaling may include one of RRC signaling, MACCE, and DCI, such as the downlink control signaling includes RRC signaling, MACCE, DCI, etc.
  • the direct control signaling includes one of sidelink RRC signaling, MACCE, and SCI, such as the direct control signaling may include SidelinkRRC, MAC CE, SCI, etc.
  • the reference signal for sidelink beam management may include one of CSI-RS, direct S-SSB, and SRS, or include other RS signal formats, etc.
  • a resource configuration solution required for reference signal transmission that can be used for beam management is provided, which can improve the accurate sidelink transmission of reference signals used for beam management.
  • Using different beams to send reference signals for the same UE can effectively reduce repeated unnecessary PSSCH transmissions and improve the resource utilization efficiency of the sidelink.
  • FIG6 is a schematic diagram of the structure of a reference signal transmission device provided in an embodiment of the present application.
  • the reference signal transmission device can be used for receiving at the UE side.
  • the apparatus may include: a receiving module 61 configured to receive a reference signal transmitted by a sidelink, wherein the reference signal is used for beam management of sidelink communication, and the reference signal is transmitted using a time-frequency resource in a time-frequency resource set configured for the reference signal. .
  • the set of time-frequency resources is configured based on time-frequency resources in a direct-connection resource pool of the sidelink.
  • the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSFCH transmission are frequency-division multiplexed.
  • the reference signal uses the same time domain period and time domain offset value as the time frequency resource configuration of the PSFCH, so that the time frequency resources used by the reference signal and the time frequency resources of the PSFCH appear in the same time domain and occupy the same OFDM symbols as the PSFCH, and the time domain offset value is a time domain offset value relative to SFN0 or DFN0.
  • the time domain resource information of the reference signal is the same as the time domain resource information of the PSFCH, and the frequency domain resource information of the reference signal is pre-configured or configured through downlink control signaling.
  • the time-frequency resource set is orthogonal to the first time-frequency resource set used for PSCCH transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSCCH transmission are time-division multiplexed.
  • the time-frequency resource set is orthogonal to a second time-frequency resource set used for PSSCH transmission, and the time-frequency resources used by the reference signal in the time-frequency resource set and the time-frequency resources used for the PSSCH transmission are time-division multiplexed.
  • the time-frequency resource set supports transmission of reference signals sent by multiple different UEs in the same slot through time domain multiplexing, or frequency domain multiplexing, or code domain multiplexing.
  • the time-frequency resource set when the time-frequency resources of the PSFCH do not exist in the direct-connect resource pool, the time-frequency resource set supports periodic resource configuration.
  • the time and frequency resources used by the reference signal occupy the last OFDM symbol of the sidelink OFDM symbol, and the OFDM symbol before the last OFDM symbol is an automatic gain control AGC symbol of the reference signal.
  • the reference signal is transmitted based on downlink control signaling sent by a base station, or direct control signaling sent by a receiving UE, or a sending UE autonomously selecting a time-frequency resource in the time-frequency resource set, and using the selected time-frequency resource.
  • the downlink control signaling may include one of RRC signaling, MACCE, and DCI, such as the downlink control signaling includes RRC signaling, MACCE, DCI, etc.
  • the direct control signaling includes one of sidelink RRC signaling, MACCE, and SCI, such as the direct control signaling may include SidelinkRRC, MAC CE, SCI, etc.
  • the reference signal for sidelink beam management may include one of CSI-RS, direct S-SSB, and SRS, or include other RS signal formats, etc.
  • a resource configuration solution required for reference signal transmission that can be used for beam management is provided, which can improve the accurate sidelink transmission of reference signals used for beam management.
  • Using different beams to send reference signals for the same UE can effectively reduce repeated unnecessary PSSCH transmissions and improve the resource utilization efficiency of the sidelink.
  • FIG 7 is a schematic diagram of the structure of a communication device 1800 provided in this embodiment.
  • the communication device 1800 can be a network device, or a user device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the user device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1800 may include one or more processors 1801.
  • the processor 1801 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and 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 computer program, and process the data of the computer program.
  • the communication device 1800 may further include one or more memories 1802, on which a computer program 1804 may be stored, and the processor 1801 executes the computer program 1804 so that the communication device 1800 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1802.
  • the communication device 1800 and the memory 1802 may be provided separately or integrated together.
  • the communication device 1800 may further include a transceiver 1805 and an antenna 1806.
  • the transceiver 1805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1805 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 1800 may further include one or more interface circuits 1807.
  • the interface circuit 1807 is used to receive code instructions and transmit them to the processor 1801.
  • the processor 1801 executes the code instructions to enable the communication device 1800 to execute the method described in the above method embodiment.
  • the processor 1801 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1801 may store a computer program 1803, which runs on the processor 1801 and enables the communication device 1800 to perform the method described in the above method embodiment.
  • the computer program 1803 may be fixed in the processor 1801, in which case the processor 1801 may be implemented by hardware.
  • the communication device 1800 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiment.
  • the processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • N-type metal oxide semiconductor nMetal-oxide-semiconductor
  • PMOS bipolar junction transistor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device 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:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the chip shown in Figure 8 includes a processor 1901 and an interface 1902.
  • the number of processors 1901 can be one or more, and the number of interfaces 1902 can be multiple.
  • the chip further includes a memory 1903, and the memory 1903 is used to store necessary computer programs and data.
  • the present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media integrated.
  • Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)), etc.
  • magnetic media e.g., floppy disks, hard disks, tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks (SSD)
  • At least one in the present application can also be described as one or more, and a plurality can be two, three, four or more, which is not limited in the present application.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal.
  • machine-readable signal refers to any signal for providing machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components.
  • the components of the system may be interconnected by any form or medium of digital data communication (e.g., a communications network). Examples of communications networks include: a local area network (LAN), a wide area network (WAN), and the Internet.
  • a computer system may include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

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

Abstract

La présente demande concerne le domaine technique des communications. La demande concerne un procédé et un appareil de transmission pour un signal de référence. Le procédé consiste à : acquérir un ensemble de ressources temps-fréquence configurées pour un signal de référence, le signal de référence étant utilisé pour une gestion de faisceau de communication de liaison latérale ; et effectuer une transmission de liaison latérale du signal de référence à l'aide d'une ressource temps-fréquence dans l'ensemble de ressources temps-fréquence. En utilisant la solution technique de la présente demande, un schéma de configuration de ressources requis pour transmettre un signal de référence qui peut être utilisé pour une gestion de faisceau est fourni dans une communication de liaison latérale, de telle sorte qu'une transmission de liaison latérale précise du signal de référence, qui est utilisé pour la gestion de faisceau, peut être améliorée.
PCT/CN2023/074672 2023-02-06 2023-02-06 Procédé et appareil de transmission pour signal de référence Ceased WO2024164125A1 (fr)

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PCT/CN2023/074672 WO2024164125A1 (fr) 2023-02-06 2023-02-06 Procédé et appareil de transmission pour signal de référence

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Publication number Priority date Publication date Assignee Title
WO2025035431A1 (fr) * 2023-08-16 2025-02-20 上海移远通信技术股份有限公司 Procédé dans un nœud utilisé pour des communications sans fil, et appareil
CN120202724A (zh) * 2023-10-17 2025-06-24 北京小米移动软件有限公司 通信方法、终端、网络设备、通信系统及存储介质

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020124353A1 (fr) * 2018-12-18 2020-06-25 Oppo广东移动通信有限公司 Procédé de communication de liaison latérale et dispositif terminal
US20200221423A1 (en) * 2017-08-10 2020-07-09 Samsung Electronics Co., Ltd Method and device for resource allocation and sidelink communication
WO2020143059A1 (fr) * 2019-01-11 2020-07-16 Oppo广东移动通信有限公司 Procédé de communication en liaison latérale et dispositif terminal
WO2020191774A1 (fr) * 2019-03-28 2020-10-01 北京欧珀通信有限公司 Procédé d'envoi de signal de référence de liaison latérale et produit associé
WO2022018688A1 (fr) * 2020-07-22 2022-01-27 Lenovo (Singapore) Pte. Ltd. Signaux de référence de liaison latérale multiples
CN114071760A (zh) * 2021-12-27 2022-02-18 成都爱瑞无线科技有限公司 数据通信方法、装置、电子设备及存储介质
US20230013069A1 (en) * 2021-07-13 2023-01-19 Qualcomm Incorporated Sidelink discovery messages for beam training and onboarding of initiator user equipments to sidelink user equipment groups

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112119607B (zh) * 2020-07-16 2023-06-20 北京小米移动软件有限公司 资源分配方法、资源分配装置及存储介质

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200221423A1 (en) * 2017-08-10 2020-07-09 Samsung Electronics Co., Ltd Method and device for resource allocation and sidelink communication
WO2020124353A1 (fr) * 2018-12-18 2020-06-25 Oppo广东移动通信有限公司 Procédé de communication de liaison latérale et dispositif terminal
WO2020143059A1 (fr) * 2019-01-11 2020-07-16 Oppo广东移动通信有限公司 Procédé de communication en liaison latérale et dispositif terminal
WO2020191774A1 (fr) * 2019-03-28 2020-10-01 北京欧珀通信有限公司 Procédé d'envoi de signal de référence de liaison latérale et produit associé
WO2022018688A1 (fr) * 2020-07-22 2022-01-27 Lenovo (Singapore) Pte. Ltd. Signaux de référence de liaison latérale multiples
US20230013069A1 (en) * 2021-07-13 2023-01-19 Qualcomm Incorporated Sidelink discovery messages for beam training and onboarding of initiator user equipments to sidelink user equipment groups
CN114071760A (zh) * 2021-12-27 2022-02-18 成都爱瑞无线科技有限公司 数据通信方法、装置、电子设备及存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS INC.: "Miscellaneous Corrections to 5G V2X with NR Sidelink", 3GPP TSG-RAN WG2 MEETING #112-E R2-2010949, 16 November 2020 (2020-11-16), XP052255564 *

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