WO2024031716A1 - Procédé et appareil de communication de liaison latérale - Google Patents

Procédé et appareil de communication de liaison latérale Download PDF

Info

Publication number
WO2024031716A1
WO2024031716A1 PCT/CN2022/112317 CN2022112317W WO2024031716A1 WO 2024031716 A1 WO2024031716 A1 WO 2024031716A1 CN 2022112317 W CN2022112317 W CN 2022112317W WO 2024031716 A1 WO2024031716 A1 WO 2024031716A1
Authority
WO
WIPO (PCT)
Prior art keywords
rat
configuration information
time unit
synchronization
logical
Prior art date
Application number
PCT/CN2022/112317
Other languages
English (en)
Chinese (zh)
Inventor
赵群
Original Assignee
北京小米移动软件有限公司
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 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/112317 priority Critical patent/WO2024031716A1/fr
Priority to CN202280003124.8A priority patent/CN115516998A/zh
Publication of WO2024031716A1 publication Critical patent/WO2024031716A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • 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 disclosure relates to the field of mobile communication technology, and in particular to a direct communication method and device.
  • SL Sidelink
  • RAT Radio Access Technology
  • the present disclosure proposes a direct connection communication method and device, provides a solution for the terminal user equipment UE to simultaneously consider the configuration information of two RATs to determine the logical time unit when two RATs coexist, and uses a direct connection link for the user equipment.
  • Communication services provide the basis to avoid possible communication interference when two RATs coexist.
  • a first aspect embodiment of the present disclosure provides a direct-connect communication method, which is executed by an end user equipment UE.
  • the method includes: obtaining a third direct-connect SL synchronization resource of a first radio access technology RAT on a first carrier. Configuration information and second configuration information of the SL synchronization resource of the second RAT; determining a logical time unit of the second RAT based on the first configuration information and the second configuration information.
  • the first RAT is Long Term Evolution technology LTE
  • the second RAT is New Radio NR technology.
  • obtaining the first configuration information of the directly connected SL synchronization resource of the first radio access technology RAT on the first carrier and the second configuration information of the SL synchronization resource of the second RAT includes: Read the preconfiguration data of the UE to obtain the first configuration information and the second configuration information; or receive downlink control information sent by a network device to obtain the first configuration information and the second configuration information.
  • the method further includes: determining a time unit in which the SL synchronization resource of the second RAT is located.
  • determining the time unit in which the synchronization resource of the second RAT is located includes: coincident with the first time unit in which the SL synchronization resource of the first RAT is located in the time domain.
  • the second time unit of the second RAT is determined as the time unit in which the SL synchronization resource of the second RAT is located.
  • determining the time unit in which the synchronization resource of the second RAT is located includes: determining, according to the first configuration information, the first time unit reserved by the first RAT without SL communication.
  • Time unit determine the second time unit of the second RAT that coincides with the first time unit in the time domain as the time unit in which the SL synchronization resource of the second RAT is located.
  • determining the logical time unit of the second RAT based on the first configuration information and the second configuration information includes: based on the first configuration information and the second configuration information, The second RAT logical time unit is determined from the physical time unit excluding the time unit in which the SL synchronization resource of the second RAT is located.
  • determining the logical time unit of the second RAT based on the first configuration information and the second configuration information includes: based on the first configuration information and the second configuration information, The logical time unit of the second RAT is determined from the physical time unit excluding the time unit where the SL synchronization resource of the second RAT is located and the time unit where the SL synchronization resource of the first RAT is located.
  • a second aspect embodiment of the present disclosure provides a direct-connect communication device, which includes an acquisition module configured to acquire the first configuration information of the direct-connect SL synchronization resource of the first radio access technology RAT on the first carrier and second configuration information of the SL synchronization resource of the second RAT; a determining module configured to determine the logical time unit of the second RAT according to the first configuration information and the second configuration information.
  • a third embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to execute a computer program on the memory. Execute instructions to control the wireless signal transmission and reception of the transceiver, and can implement the method described in the embodiment of the first aspect of the present disclosure.
  • a fourth embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the implementation of the first aspect of the disclosure can be implemented The method described in the example.
  • the UE can obtain the first configuration information of the direct SL synchronization resource of the first radio access technology RAT on the first carrier and the SL synchronization resource of the second RAT.
  • Second configuration information determine the logical time unit of the second RAT according to the first configuration information and the second configuration information. This disclosure is aimed at the coexistence situation of two RATs working on the same carrier frequency. When the two RATs coexist, the UE simultaneously considers the configuration information of the two RATs to determine the logical time unit, providing user equipment with communication services using direct links. foundation to avoid possible communication interference caused by the coexistence of two RATs.
  • Figure 1 is a schematic diagram of a method for determining a logical time unit according to an embodiment of the present disclosure
  • Figure 2 is a schematic flowchart of a direct connection communication method according to an embodiment of the present disclosure
  • Figure 3 is a schematic flowchart of a direct communication method according to an embodiment of the present disclosure
  • Figure 4 is a schematic diagram of a method for determining a synchronization time unit according to an embodiment of the present disclosure
  • Figure 5 is a schematic diagram of a method for determining a logical time unit according to an embodiment of the present disclosure
  • Figure 6 is a block diagram of a direct-connect communication device according to an embodiment of the present disclosure.
  • Figure 7 is a block diagram of a direct-connect communication device according to an embodiment of the present disclosure.
  • Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
  • LTE Long Term Evolution
  • 3G Third Generation
  • 4G fourth generation
  • LTE Release 14 Long Term Evolution
  • SL direct links
  • 5G fifth generation of mobile communication technology
  • 5G New Radio (NR) technology 3GPP started the work of using NR interface to support Internet of Vehicles communications, and completed 5G in Release16 SL supports direct communication between Internet of Vehicles devices through NR technology. Due to the different physical layer designs of LTE and NR, direct communication between LTE V2X and NR V2X devices is not possible.
  • both NR and LTE need to configure SL synchronization time-frequency resources.
  • the SL resource pools used by NR and LTE SL communications are defined in their respective logical time units.
  • LTE is a logical subframe and NR is a logical slot, so the logical time needs to be determined. unit.
  • the UE when the UE supports two RATs, for example, the UE supports both LTE SL technology and NR SL technology, when direct communication is performed between UEs, for example, through LTE communication technology and When other UEs that support LTE SL technology communicate, or communicate with other UEs that support NR SL technology through NR communication technology, if the respective RATs only remove the time units of their respective SL synchronization signals or broadcast channels, the two determined
  • the logical time unit of the RAT will vary.
  • the synchronization time unit of LTE SL may belong to the logical time unit of NR SL, and vice versa.
  • the SL resource pool Since the SL resource pool is defined on a logical unit, it may cause the LTE SL resource pool to include NR synchronization time units, or the NR SL resource pool to include LTE synchronization time units, causing unnecessary interference. Therefore, it is necessary to consider both RATs at the same time to determine the logical time unit to avoid problems such as communication performance degradation caused by possible conflicts between the two RATs in different application scenarios.
  • the present disclosure proposes a direct connection communication method and device, providing a solution for the terminal user equipment UE to simultaneously consider the configuration information of two RATs to determine the logical time unit when two RATs coexist, and provide direct connection for the user equipment.
  • the link provides a basis for communication services to avoid possible communication interference when two RATs coexist.
  • Figure 1 shows a schematic diagram of the determination method of logical time units in direct communication.
  • the logical time unit is the remaining time unit after removing the time unit used by the respective RAT to transmit SL synchronization signals and broadcast channels, the time unit with insufficient time and frequency resources of the SL, and the reserved time unit.
  • the remaining The physical time unit is used as a logical time unit for transmitting communication information.
  • the time unit in which the time-frequency resources of the SL are insufficient may be, for example, a time unit used for downlink transmission.
  • a time unit used for downlink transmission For another example, in a Time Division Duplexing (TDD) network, the OFDM symbols of the time slot can be divided into downlink, flexible or uplink, and the time units in which the uplink time-frequency resources are insufficient to support SL communication will also be removed. .
  • TDD Time Division Duplexing
  • the determined logical time units of the two RATs will be different.
  • the synchronization time unit of LTE SL may belong to the logical time unit of NR SL, and vice versa. Since the SL resource pool is defined on a logical unit, it may cause the LTE SL resource pool to include NR synchronization time units, or the NR SL resource pool to include LTE synchronization time units, causing unnecessary interference.
  • FIG. 2 shows a schematic flow chart of a direct connection communication method, which can be executed by an end user equipment (User Equipment, UE).
  • user equipment UE includes but is not limited to intelligent terminal equipment, cellular phones, wireless devices, handsets, mobile units, vehicles, vehicle-mounted equipment, etc.
  • the solution provided by the present disclosure can be used in the fifth generation mobile communication technology (Fifth Generation, 5G) and its subsequent communication technologies, such as the fifth generation mobile communication technology evolution (5G-advanced), the sixth generation mobile communication technology Generation mobile communication technology (Sixth Generation, 6G), etc., are not limited in this disclosure.
  • 5G fifth generation mobile communication technology
  • 6G sixth generation mobile communication technology Generation mobile communication technology
  • the method may include the following steps.
  • the configuration information may be resource pool configuration information of the UE.
  • the configuration information includes the first configuration information of the first sidelink (SL) synchronization resource of the first radio access technology (Radio Access Technology, RAT) on the first carrier, and the first configuration information of the second RAT Second configuration information of the second SL synchronization resource.
  • SL sidelink
  • RAT Radio Access Technology
  • the first RAT may be a Long Term Evolution (LTE) technology
  • the first SL synchronization resource of the first RAT may be an LTE SL synchronization resource
  • the second RAT may be New Radio (NR) technology
  • the second SL synchronization resource of the second RAT may be NR SL synchronization resource.
  • the first configuration information may include the location of the LTE SL synchronization time unit.
  • the UE can determine the time domain location of the synchronization resources of the LTE SL through (pre)configuration or configuration information obtained by receiving downlink control information from the base station.
  • the second configuration information may include the time domain position of the synchronization time unit and the number of time units in each cycle.
  • the UE can obtain the time domain location of the LTE SL synchronization resource through the LTE RAT and inform the NR RAT of this information.
  • LTE SL and NR SL coexist on the same carrier.
  • the UE can configure the resource pool of the UE based on the configuration information, where the resource pool configuration described in this disclosure refers to the configuration of the second SL resource pool, that is, the NR SL resource pool.
  • the present disclosure does not limit whether a UE is a receiving UE or a sending UE. It should be understood that for direct communication between UEs, the configuration of the UE is aligned between the receiving UE and the sending UE.
  • the way for the UE to obtain the first configuration information or the second configuration information may be to obtain it from the preconfiguration of the UE, for example, to obtain the configuration information by reading the preconfiguration data stored in the UE chip.
  • the way for the UE to obtain the first configuration information or the second configuration information may be to receive downlink control information sent by the network device and obtain the configuration data from the downlink control information. This disclosure does not limit the way in which the UE obtains configuration information.
  • the above-mentioned network equipment can be a 5G radio access network (NG-RAN) node, such as gNB or ng-eNB, where gNB can be used for independent networking and ng-eNB can be used for downward It is compatible with 4G networks to adapt to the application requirements of different core networks. Its specific use cases depend on the application scenarios and are not limited here.
  • NG-RAN 5G radio access network
  • S202 Determine the logical time unit of the second RAT according to the first configuration information and the second configuration information.
  • the logical time unit is the time remaining after removing the time units used by the respective RATs to transmit SL synchronization signals and broadcast channels, the time units with insufficient time-frequency resources of the SL, and the reserved time units. unit.
  • the remaining The physical time unit is used as a logical time unit for transmitting communication information.
  • the logical time unit of LTE is the remaining time unit after removing the time unit used by LTE to transmit SL synchronization signals and broadcast channels, the time unit with insufficient time and frequency resources of SL, and the reserved time unit; the logical time unit of NR It is the remaining time unit after removing the time unit used by NR to transmit SL synchronization signals and broadcast channels, the time unit with insufficient time-frequency resources of SL, and the reserved time unit.
  • each RAT determines the logical time unit of each RAT. .
  • the synchronization time unit of LTE SL may belong to the logical time unit of NR SL, and vice versa. Since the SL resource pool is defined on a logical unit, it may cause the LTE SL resource pool to include NR synchronization time units, or the NR SL resource pool to include LTE synchronization time units, causing unnecessary interference.
  • the configuration situations of two RATs are considered to determine the logical time unit of NR.
  • the UE determines the logical time unit of NR based on the first configuration information of LTE and the second configuration information of NR. Compared with the existing technology, the configuration of two RATs is considered.
  • time unit described in the embodiment of the present disclosure may include a slot, a subframe, a frame, a subslot, an OFDM symbol, etc. In the present disclosure No restrictions.
  • the UE can obtain the first configuration information of the direct SL synchronization resource of the first radio access technology RAT on the first carrier and the second configuration information of the SL synchronization resource of the second RAT.
  • Configuration information determining a logical time unit of the second RAT according to the first configuration information and the second configuration information.
  • Figure 3 shows a schematic flowchart of a direct communication method according to an embodiment of the present disclosure. This method can be performed by the UE. As shown in Figure 3, the method may include the following steps:
  • the configuration information may be resource pool configuration information of the UE.
  • the configuration information includes the first configuration information of the first sidelink (SL) synchronization resource of the first radio access technology (Radio Access Technology, RAT) on the first carrier, and the first configuration information of the second RAT Second configuration information of the second SL synchronization resource.
  • SL sidelink
  • RAT Radio Access Technology
  • the first RAT may be a Long Term Evolution (LTE) technology
  • the first SL synchronization resource of the first RAT may be an LTE SL synchronization resource
  • the second RAT may be New Radio (NR) technology
  • the second SL synchronization resource of the second RAT may be NR SL synchronization resource.
  • LTE SL and NR SL coexist on the same carrier.
  • the way for the UE to obtain the first configuration information or the second configuration information may be to obtain it from the preconfiguration of the UE, for example, to obtain the configuration information by reading the preconfiguration data stored in the UE chip.
  • the way for the UE to obtain the first configuration information or the second configuration information may be to receive downlink control information sent by the network device and obtain the configuration data from the downlink control information. This disclosure does not limit the way in which the UE obtains configuration information.
  • Step S301 in this embodiment has the same principle as step S201 in the above embodiment.
  • S201 for other corresponding explanations, please refer to S201 and will not be described again.
  • S302 Determine the time unit in which the SL synchronization resource of the second RAT is located.
  • the main problem solved by the present disclosure is that when LTE SL and NR SL coexist on the same carrier, both RATs are considered for the determination of the logical time unit to avoid determining the logical time unit by each RAT.
  • the resulting situation is that the resource pool of LTE SL contains NR synchronization time units, or the resource pool of NR SL includes LTE synchronization time units, causing unnecessary interference.
  • the determination of the logical time unit requires removing the time unit where the synchronization resource is located. Therefore, in this embodiment, the method of determining the time unit in which the NR SL synchronization resource is located is focused.
  • determining the time unit where the synchronization resource of the second RAT is located includes: comparing the first time unit where the SL synchronization resource of the first RAT is located in the time domain.
  • the overlapping second time unit of the second RAT is determined as the time unit in which the SL synchronization resource of the second RAT is located.
  • the time unit where the second RAT synchronization resource is located coincides with the time unit where the first RAT synchronization resource is located in the time domain.
  • FDM Frequency-division multiplexing
  • Figure 4 shows an example of a method for determining a time unit of an NR SL synchronization resource.
  • SCS sub-carrier space
  • the time length of one time unit (slot) of NR SL is the same as the time length of one time unit (subframe) of LTE SL. time lengths are equal.
  • subframe n in LTE SL is configured as the time unit where the resources of the LTE SL synchronization signal/broadcast channel are transmitted; for NR SL that coexists on the same carrier, slot m that coincides with subframe n in the time domain can be configured as the transmission NR
  • the time unit in which the resources of the SL synchronization signal/broadcast channel are located Since the periods of a set of synchronization resources of NR SL and LTE SL are equal (160ms), a set of synchronization resources of the two RATs can be completely configured on time and frequency resources that overlap in the time domain. Therefore, when determining the NR logical time unit, This part of the time unit used for transmitting synchronization signals or broadcast channel synchronization resources is removed to avoid the situation where the logical time units of the two RATs are different.
  • the time length of one time unit (slot) of NR SL and the time length of one time unit (subframe) of LTE SL It is a twice relationship, that is, the length of one LTE subframe is equal to the length of two NR slots.
  • subframe n in LTE SL is configured as the time unit where the resources for transmitting LTE SL synchronization signals/broadcast channels are located; for NR SL coexisting on the same carrier, two slot m that overlap with subframe n in the time domain can be configured as The time unit in which the resources for transmitting NR SL synchronization signals/broadcast channels are located.
  • the synchronization resources of the two RATs can be completely configured on the time and frequency resources with overlapping time domains, and a set of LTE synchronization resources and two sets of NR synchronization resources are configured on the time units with overlapping time domains, so that when determining the NR logical time unit, This part of the time unit used for transmitting synchronization signals or broadcast channel synchronization resources is removed to avoid the situation where the logical time units of the two RATs are different.
  • the frequency domain position of the synchronization resources of LTE SL in the subframe is not adjustable. It is located on 6 Physical Resource Blocks (PRB) centered on the center frequency position of the carrier, while the synchronization resources of NR SL are The frequency domain position can be set through configuration (or preconfiguration). Therefore, the frequency domain location of the NR SL synchronization resource can be configured to a location that does not coincide with the frequency domain of the LTE SL synchronization resource.
  • PRB Physical Resource Blocks
  • time units such as reserved time units or insufficient time units
  • time units that need to be removed to determine the logical time unit remain unchanged and can be the same as the existing technology, and will not be described again here. .
  • determining the time unit in which the synchronization resource of the second RAT is located includes: determining, according to the first configuration information, the time unit reserved by the first RAT without SL communication.
  • the first time unit determine the second time unit of the second RAT that coincides with the first time unit in the time domain as the time unit in which the SL synchronization resource of the second RAT is located.
  • the time unit of the NR used for transmitting the synchronization resource may also be configured in a time slot in which subframes reserved by LTE that are not used for transmitting SL resources overlap in the time domain.
  • the time unit where the second RAT synchronization resource is located coincides with the time unit reserved by the second RAT for not performing SL communication in the time domain.
  • the time unit reserved by LTE for not performing SL communication may be related to the position of the synchronization time unit, for example, calculated through a formula according to the position of the synchronization time unit in the first configuration information of LTE.
  • the NR synchronization resources are set in subframes reserved for LTE, so that the NR synchronization resources will not overlap with the LTE logical subframes in time domain.
  • S303 Determine the logical time unit of the second RAT according to the first configuration information and the second configuration information.
  • the physical time unit excluding the time unit where the SL synchronization resource of the second RAT is located may be determined according to the first configuration information and the second configuration information. Second RAT logical time unit.
  • the NR synchronization time unit may be an NR time unit (time slot) that coincides with the time unit (subframe) where the LTE SL synchronization resource is located in the time domain as described in the above embodiment, or may be an NR time unit (time slot) that coincides with the time unit (subframe) where the LTE SL synchronization resource is located.
  • the reserved time unit (subframe) for which SL communication is not performed coincides with the NR time unit (time slot) in the time domain.
  • determining the logical time unit of the second RAT based on the first configuration information and the second configuration information may further include: based on the first configuration information and the third configuration information. Second configuration information, determining the logical time of the second RAT from the physical time unit excluding the time unit where the SL synchronization resource of the second RAT is located and the time unit where the SL synchronization resource of the first RAT is located. unit.
  • Figure 5 shows another determination scheme of logical time units.
  • the time unit where the LTE SL synchronization resources are located LTE synchronization subframe
  • the time unit where the NR SL synchronization resources are located NR synchronization slot
  • the remaining physical time In the unit, for example, other time units that should be removed as described in the embodiment shown in FIG. 1 are removed, and the remaining time units are determined as logical time units.
  • the UE can obtain the first configuration information of the direct SL synchronization resource of the first radio access technology RAT on the first carrier and the second configuration information of the SL synchronization resource of the second RAT.
  • Configuration information first determine the synchronization time unit, and then determine the logical time unit of the second RAT based on the first configuration information and the second configuration information.
  • This disclosure is aimed at the coexistence situation of two RATs working on the same carrier frequency.
  • the UE simultaneously considers the configuration information of the two RATs to determine the logical time unit, providing user equipment with communication services using direct links. foundation to avoid possible communication interference caused by the coexistence of two RATs.
  • This embodiment provides an optional method of determining the synchronization time unit, expands the boundary of determining the logical time unit when two RATs coexist, and uses a more flexible configuration method to avoid communication interference that may be caused when two RATs coexist.
  • the purpose of the solution provided by the above embodiments of the present disclosure is that when NR SL and LTE SL share the same carrier, when determining the logical time unit of NR SL, it is necessary to remove those resources synchronized with LTE SL The time slot in which the time domain overlap occurs in the subframe. This can avoid time synchronization between the NR SL resource pool configured on the NR SL logical time slot and the synchronization signal of the LTE SL.
  • determining the logical time unit in the embodiments described in FIGS. 1 to 5 may specifically refer to determining the index of the logical time unit
  • the "removing XXX time unit from the physical time unit” described above may specifically refer to Refers to the index that removes the time unit, which will not be described in detail in this disclosure. For its specific implementation, please refer to relevant standards.
  • embodiments of the present disclosure frequency-division multiplex the synchronization resources of the two RATs, or remove synchronization with the LTE SL when the NR determines the NR SL logical time slot.
  • Methods such as time slots where resources occur in overlapping time domains solve the problem that the resource pool of LTE SL includes NR synchronization time units, or the resource pool of NR SL includes LTE synchronization time units that may result from considering a single RAT alone to determine the logical time unit. This avoids Eliminates the occurrence of unnecessary interference during SL communication.
  • the methods provided by the embodiments of the present application are introduced from the perspective of user equipment.
  • the user equipment may include a hardware structure and a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • the present disclosure also provides a direct connection communication device, because the direct connection communication device provided by the embodiments of the present disclosure is consistent with the direct connection communication methods provided by the above embodiments.
  • the implementation of the direct connection communication method is also applicable to the direct connection communication device provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG. 6 is a schematic structural diagram of a direct connection communication device 600 provided by an embodiment of the present disclosure.
  • the direct connection communication device 600 can be used for end user equipment UE.
  • the device 600 may include an obtaining module 610 and a determining module 620 .
  • the obtaining module 610 is used to obtain the first configuration information of the directly connected SL synchronization resources of the first radio access technology RAT on the first carrier and the second configuration information of the SL synchronization resources of the second RAT; the determining module 620 is used to obtain The logical time unit of the second RAT is determined according to the first configuration information and the second configuration information.
  • the UE can obtain the first configuration information of the direct SL synchronization resources of the first radio access technology RAT on the first carrier and the second configuration information of the SL synchronization resources of the second RAT;
  • the logical time unit of the second RAT is determined according to the first configuration information and the second configuration information.
  • the first RAT is Long Term Evolution technology LTE
  • the second RAT is New Radio NR technology.
  • the device 600 may also include a transceiver module 630, wherein the acquisition module 610 may read the preconfiguration data of the UE. Obtain the first configuration information and the second configuration information; or the transceiver module 640 is configured to receive downlink control information sent by the network device, and the acquisition module 610 can acquire the first configuration information and the second configuration information based on the received downlink control information. Describe the second configuration information.
  • the determining module 620 is further configured to determine the time unit in which the SL synchronization resource of the second RAT is located.
  • the determining module 620 is further configured to: determine the second time unit of the second RAT that coincides with the first time unit where the SL synchronization resource of the first RAT is located in the time domain. , determined as the time unit in which the SL synchronization resource of the second RAT is located.
  • the determining module 620 is further configured to: determine a first time unit reserved by the first RAT for not performing SL communication according to the first configuration information; and determine the first time unit with the first time unit.
  • the second time unit of the second RAT that overlaps in the time domain is determined as the time unit in which the SL synchronization resource of the second RAT is located.
  • the determining module 620 is further configured to: remove the physical time of the time unit where the SL synchronization resource of the second RAT is located according to the first configuration information and the second configuration information. unit, determine the second RAT logical time unit.
  • the determining module 620 is further configured to: remove the time unit where the SL synchronization resource of the second RAT is located and the time unit based on the first configuration information and the second configuration information.
  • the logical time unit of the second RAT is determined in the physical time unit of the time unit where the SL synchronization resource of the first RAT is located.
  • the UE can obtain the first configuration information of the direct SL synchronization resources of the first radio access technology RAT on the first carrier and the second configuration of the SL synchronization resources of the second RAT. information, first determine the synchronization time unit, and then determine the logical time unit of the second RAT based on the first configuration information and the second configuration information.
  • This disclosure is aimed at the coexistence situation of two RATs working on the same carrier frequency.
  • the UE simultaneously considers the configuration information of the two RATs to determine the logical time unit, providing user equipment with communication services using direct links. foundation to avoid possible communication interference caused by the coexistence of two RATs.
  • This embodiment provides an optional method of determining the synchronization time unit, expands the boundary of determining the logical time unit when two RATs coexist, and uses a more flexible configuration method to avoid communication interference that may be caused when two RATs coexist.
  • FIG. 8 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application.
  • the communication device 800 may be a network device, a user equipment, a chip, a chip system, or a processor that supports network equipment to implement the above method, or a chip, a chip system, or a processor that supports user equipment to implement the above method. Processor etc.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 800 may include one or more processors 801.
  • the processor 801 may be a general-purpose processor or a special-purpose processor, or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 800 may also include one or more memories 802, on which a computer program 804 may be stored.
  • the processor 801 executes the computer program 804, so that the communication device 800 executes the method described in the above method embodiment.
  • the memory 802 may also store data.
  • the communication device 800 and the memory 802 can be provided separately or integrated together.
  • the communication device 800 may also include a transceiver 805 and an antenna 806.
  • the transceiver 805 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 805 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 800 may also include one or more interface circuits 807.
  • the interface circuit 807 is used to receive code instructions and transmit them to the processor 801 .
  • the processor 801 executes code instructions to cause the communication device 800 to perform the method described in the above method embodiment.
  • the processor 801 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 801 may store a computer program 803, and the computer program 803 runs on the processor 801, causing the communication device 800 to perform the method described in the above method embodiment.
  • the computer program 803 may be solidified in the processor 801, in which case the processor 801 may be implemented by hardware.
  • the communication device 800 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, 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 (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • 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 user equipment, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by the figures.
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the communication device may be a chip or a chip system
  • the chip shown in Figure 9 includes a processor 901 and an interface 902.
  • the number of processors 901 may be one or more, and the number of interfaces 902 may be multiple.
  • the chip also includes a memory 903, which is used to store necessary computer programs and data.
  • This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • a computer program product includes one or more computer programs.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program may be transmitted from a website, computer, server or data center via a wireline (e.g.
  • Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless means to transmit to another website, computer, server or data center.
  • Computer-readable storage media can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or other integrated media that contains one or more available media. Available media may 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)) )wait.
  • magnetic media e.g., floppy disks, hard disks, tapes
  • optical media e.g., high-density digital video discs (DVD)
  • semiconductor media e.g., solid state disks (SSD)
  • At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or means for providing machine instructions and/or data to a programmable processor (for example, magnetic disks, optical disks, memories, programmable logic devices (PLD)), including machine-readable media that receive machine instructions as machine-readable signals.
  • machine-readable signal refers to any signal used to provide 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's computer having a graphical user interface or web browser through which the user can interact with implementations of the systems and technologies described herein), or including such backend components, middleware components, or any combination of front-end components in a computing system.
  • the components of the system may be interconnected by any form or medium of digital data communication (eg, a communications network). Examples of communication networks include: local area network (LAN), wide area network (WAN), and the Internet.
  • Computer systems may include clients and servers.
  • Clients and servers are generally remote from each other and typically interact over a communications network.
  • the relationship of client and server is created by computer programs running on corresponding computers and having a client-server relationship with each other.

Landscapes

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

Abstract

La présente divulgation se rapporte au domaine des communications. L'invention concerne un procédé et un appareil de communication de liaison latérale (SL). Le procédé consiste : à acquérir, au moyen d'un équipement utilisateur (UE), des premières informations de configuration d'une ressource de synchronisation de liaison latérale (SL) d'une première technologie d'accès radio (RAT) et des secondes informations de configuration d'une ressource de synchronisation de liaison SL d'une seconde technologie RAT, qui sont sur une première porteuse ; et à déterminer une unité de temps logique de la seconde technologie RAT selon les premières informations de configuration et les secondes informations de configuration. En ce qui concerne la situation de coexistence dans laquelle deux technologies RAT fonctionnent sur la même fréquence porteuse, la présente divulgation prend en considération les deux technologies RAT lors de la détermination d'une unité de temps logique, de façon à fournir une base pour qu'un UE effectue un service de communication à l'aide d'une liaison SL, ce qui empêche l'interférence de communication qui peut être provoquée lorsque les deux technologies RAT coexistent.
PCT/CN2022/112317 2022-08-12 2022-08-12 Procédé et appareil de communication de liaison latérale WO2024031716A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/112317 WO2024031716A1 (fr) 2022-08-12 2022-08-12 Procédé et appareil de communication de liaison latérale
CN202280003124.8A CN115516998A (zh) 2022-08-12 2022-08-12 一种直连通信方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/112317 WO2024031716A1 (fr) 2022-08-12 2022-08-12 Procédé et appareil de communication de liaison latérale

Publications (1)

Publication Number Publication Date
WO2024031716A1 true WO2024031716A1 (fr) 2024-02-15

Family

ID=84513740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/112317 WO2024031716A1 (fr) 2022-08-12 2022-08-12 Procédé et appareil de communication de liaison latérale

Country Status (2)

Country Link
CN (1) CN115516998A (fr)
WO (1) WO2024031716A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109155725A (zh) * 2016-03-30 2019-01-04 Idac控股公司 长期演进辅助的nr灵活无线电接入
CN111480311A (zh) * 2018-06-01 2020-07-31 三星电子株式会社 用于在无线车辆通信系统中发送和接收信号的方法和装置
CN112119607A (zh) * 2020-07-16 2020-12-22 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
CN112534936A (zh) * 2018-08-10 2021-03-19 Lg 电子株式会社 Nr v2x中与不同rat有关的侧链路通信共存的方法和设备
US20220191862A1 (en) * 2019-03-04 2022-06-16 Lg Electronics Inc. Information on sidelink resource

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109155725A (zh) * 2016-03-30 2019-01-04 Idac控股公司 长期演进辅助的nr灵活无线电接入
CN111480311A (zh) * 2018-06-01 2020-07-31 三星电子株式会社 用于在无线车辆通信系统中发送和接收信号的方法和装置
CN112534936A (zh) * 2018-08-10 2021-03-19 Lg 电子株式会社 Nr v2x中与不同rat有关的侧链路通信共存的方法和设备
US20220191862A1 (en) * 2019-03-04 2022-06-16 Lg Electronics Inc. Information on sidelink resource
CN112119607A (zh) * 2020-07-16 2020-12-22 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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "On coexistence of NR SL and LTE SL for V2X", 3GPP TSG-RAN WG1 MEETING #94BIS TDOC R1-1811602, 28 September 2018 (2018-09-28), XP051519000 *
HUAWEI, HISILICON: "In-device coexistence between LTE and NR sidelinks", 3GPP TSG RAN WG1 MEETING #98BIS R1-1910058, 8 October 2019 (2019-10-08), XP051788865 *

Also Published As

Publication number Publication date
CN115516998A (zh) 2022-12-23

Similar Documents

Publication Publication Date Title
WO2018054263A1 (fr) Procédé et dispositif pour envoyer ou recevoir un canal de commande de liaison descendante physique (pdcch)
KR20180021849A (ko) 데이터 전송 방법, 무선 네트워크 장치, 및 통신 시스템
WO2018028565A1 (fr) Procédé et dispositif de communication
US10819397B2 (en) Information transmission method and related device
CN111867038B (zh) 一种通信方法及装置
CN114071429A (zh) 一种物理下行控制信道增强方法、通信装置及系统
WO2023044805A1 (fr) Procédé et appareil de détermination de configuration cellulaire
WO2018137700A1 (fr) Procédé, dispositif et système de communication
CN113424618B (zh) 一种通信方法、装置及计算机可读存储介质
WO2024031717A1 (fr) Procédé et appareil de communication en liaison latérale
WO2020200056A1 (fr) Procédé et appareil de production de signal de référence de démodulation
WO2024031716A1 (fr) Procédé et appareil de communication de liaison latérale
WO2023151065A1 (fr) Procédé et appareil de configuration de partie de bande passante initiale et procédé et appareil de commutation de partie de bande passante initiale
WO2022205236A1 (fr) Procédés et appareils de détermination et d'indication d'intervalle de saut de fréquence
WO2021134447A1 (fr) Procédé et appareil de communication
WO2023108499A1 (fr) Procédé et appareil de sélection de ressource de communication de liaison latérale
WO2024026699A1 (fr) Procédé et appareil de sélection de ressources
WO2024050783A1 (fr) Procédé et appareil pour déterminer une relation de séquence temporelle entre un pdcch et un prach
WO2024011637A1 (fr) Procédé et appareil de commutation de mode de moment angulaire orbital (oam), dispositif et support de stockage
WO2023010431A1 (fr) Procédé et appareil de communication, et support de stockage
WO2022205379A1 (fr) Procédé et appareil d'enclenchement d'estimation de canal conjoint
WO2022206935A1 (fr) Procédé et appareil de traitement de communication ainsi que support de stockage, puce et dispositif de module
WO2023130284A1 (fr) Procédé et appareil de rétroaction de requête automatique de répétition hybride
WO2023155206A1 (fr) Procédé de rapport de durée maximale d'estimation de canal conjoint, et appareil associé
WO2024026700A1 (fr) Procédé et dispositif de sélection de ressource

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22954666

Country of ref document: EP

Kind code of ref document: A1