WO2023066209A1 - 一种配置方法及装置 - Google Patents

一种配置方法及装置 Download PDF

Info

Publication number
WO2023066209A1
WO2023066209A1 PCT/CN2022/125731 CN2022125731W WO2023066209A1 WO 2023066209 A1 WO2023066209 A1 WO 2023066209A1 CN 2022125731 W CN2022125731 W CN 2022125731W WO 2023066209 A1 WO2023066209 A1 WO 2023066209A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
timing advance
terminal device
unit
configuration
Prior art date
Application number
PCT/CN2022/125731
Other languages
English (en)
French (fr)
Inventor
吴小宁
胡星星
耿婷婷
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023066209A1 publication Critical patent/WO2023066209A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the technical field of communications, and in particular to a configuration method and device.
  • the base station can be composed of a centralized unit (CU) and a distributed unit (DU), that is, the functions of the base station are split, and the base station Part of the functions are deployed in a CU, and the remaining functions are deployed in the DU.
  • Multiple DUs can share a CU, which can save costs and facilitate network expansion.
  • the terminal device may report a timing advance (timing advance, TA) to the base station.
  • TA timing advance
  • This time synchronization method can be applied to scenarios where the distance between the terminal device and the base station is relatively long, such as satellite communication, that is, in a non-terrestrial network (NTN).
  • NTN non-terrestrial network
  • satellites can be used as relays, base stations, or in base stations.
  • the present application provides a configuration method and device, which can improve the system performance of a distributed architecture base station.
  • the present application provides a configuration method, which includes: a distributed unit of an access network device determines first configuration information, and the first configuration information includes configuration information for terminal devices to report timing advance information; the access network The distributed unit of the device sends the first configuration information to the terminal device through the centralized unit of the access network device.
  • the distributed unit can control the reporting timing of the terminal device to report the timing advance information by configuring the first configuration information. Further, since the timing of the terminal equipment reporting the timing advance information is related to the scheduling timing of the distributed unit, the distributed unit can improve the scheduling efficiency and performance of the distributed unit by controlling the timing of the terminal equipment reporting the timing advance information.
  • the timing advance information reported by the terminal device includes the timing advance determined by the terminal device, and/or parameters or information used to determine the timing advance.
  • the first configuration information includes at least one of the following:
  • Timing advance offset threshold value Timing advance information reporting type; Timing advance information random access reporting indication information; Timing advance information reporting time information; Times of timing advance information reporting.
  • the method further includes: the distributed unit receives a first message from the centralized unit, where the first message is used to request first configuration information.
  • the method further includes: the distributed unit receives a second message from the centralized unit, the second message includes second configuration information, and the second configuration information is configured by the centralized unit for the terminal device. Reporting configuration information of the timing advance information; wherein, the first configuration information is updated information of the second configuration information.
  • the distributed unit sends a third message to the centralized unit, where the third message includes feedback information and/or first configuration information, where the feedback information is used to indicate that the distributed unit has received to the second configuration information.
  • the method further includes: the distributed unit receives first timing advance information from the terminal device, where the first timing advance information is sent according to the first configuration information.
  • the scheduling efficiency and performance of the distributed unit can be improved.
  • the method further includes: the distributed unit sends at least one of the first information and the second information to the terminal device through the centralized unit; wherein the first information is the cell coverage information of the distributed unit , the second information is ephemeris information corresponding to the distributed unit.
  • the method further includes: the distributed unit receives a second timing advance from the centralized unit, and the second timing advance is for the centralized unit according to at least one of the first information and the second information, and The location information of the terminal device is determined.
  • the CU can calculate the timing advance and increase the reliability of the system. For example, when the timing advance calculated by the terminal device fails to be reported, for example, cannot be reported or cannot be received by the DU, or when the terminal device cannot calculate the timing advance, the CU may calculate the timing advance.
  • the method further includes: the distributed unit receives the location information of the terminal device from the centralized unit; the distributed unit according to at least one of the first information and the second information, and the location information of the terminal device The information determines the third timing advance; wherein, the first information is cell coverage information of the distributed unit, and the second information is ephemeris information corresponding to the distributed unit.
  • the DU can calculate the timing advance and increase the reliability of the system. For example, when the timing advance calculated by the terminal device fails to be reported, for example, cannot be reported or received by the DU, or when the terminal device cannot calculate the timing advance, the DU may calculate the timing advance.
  • the first information includes at least one of the following:
  • the second information includes at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the present application provides a configuration method, the method comprising: a centralized unit of an access network device receives first configuration information from a distributed unit of the access network device, the first configuration information includes information for terminal devices to report Configuration information of timing advance information; the centralized unit of the access network device sends the first configuration information to the terminal device.
  • the first configuration information includes at least one of the following:
  • the method further includes: the centralized unit sends a first message to the distributed unit, where the first message is used to request first configuration information.
  • the method further includes: the centralized unit sends a second message to the distributed unit, the second message includes second configuration information, and the second configuration information is configured by the centralized unit for the terminal device to report Configuration information of timing advance information; wherein, the first configuration information is updated information of the second configuration information.
  • the centralized unit also receives a third message from the distributed unit, where the third message includes feedback information and/or first configuration information, where the feedback information is used to indicate that the distributed unit has received the second configuration information.
  • the method further includes: the centralized unit receives at least one of the first information and the second information from the distributed unit; the centralized unit sends the first information and the second information to the terminal device at least one item; wherein, the first information is the cell coverage information of the distributed unit, and the second information is the ephemeris information corresponding to the distributed unit.
  • the method further includes: the centralized unit determines the second timing advance according to at least one of the first information and the second information, and the location information of the terminal device; the centralized unit sends the The second timing is advanced.
  • the method further includes: the centralized unit acquires location information of the terminal device; the centralized unit sends the location information to the distributed unit.
  • the first information includes at least one of the following: cell radius information; cell reference point information; cell coverage shape information.
  • the second information includes at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the present application provides a configuration method, the method includes: a terminal device receives first configuration information from a centralized unit of an access network device, and the first configuration information includes configuration information for the terminal device to report timing advance information , the first configuration information is configured by the distributed unit of the access network device; the terminal device reports the first timing advance information to the distributed unit of the access network device according to the first configuration information.
  • the first configuration information includes at least one of the following:
  • the method further includes: the terminal device receives at least one of the first information and the second information from the distributed unit through the centralized unit; wherein, the first information is the cell coverage of the distributed unit information, and the second information is ephemeris information corresponding to the distributed unit.
  • the first configuration information includes a timing advance offset threshold value; the terminal device reports the first timing advance information to the distributed unit of the access network device according to the first configuration information, including: if the terminal device determines The absolute value of the difference between the timing advance and the last successfully reported timing advance is greater than or equal to the timing advance offset threshold, and the terminal device reports the first timing to the distributed unit of the access network device according to the first configuration information. advance information.
  • the method further includes: the terminal device determines the first timing advance according to at least one of the first information and the second information, and the location information of the terminal device; wherein the first information is the access The cell coverage information of the distributed units of the network equipment, and the second information is the ephemeris information corresponding to the distributed units of the access network equipment.
  • the present application provides a configuration method, which includes: the target access network device determines valid time information, and the valid time information indicates the valid time of conditional handover configuration of the terminal device; the target access network device sends the source access network The device sends valid time information.
  • the target access network device independently determines the effective time of the CHO configuration, and can independently control the release time of resources related to the CHO configuration, and realize efficient utilization of resources.
  • the target access network device determines valid time information, including:
  • the target access network device determines the effective time information according to the location information of the terminal device, the cell coverage information of the target access network device, and the ephemeris information corresponding to the target access network device.
  • the method further includes: the target access network device determines a time to release the conditional handover configuration of the terminal device according to the valid time information.
  • the target access network device can release resources related to CHO configuration in time according to the effective time information, reduce resource overhead, improve the DU and CU-UP performance of the target access network device, and improve the overall system performance.
  • the target access network device includes a centralized unit control plane entity, a centralized unit user plane entity, and a distributed unit; the method further includes:
  • the centralized unit control plane entity of the target access network device sends valid time information to at least one of the centralized unit user plane entity and the distributed unit of the target access network device.
  • the present application provides a configuration method, which includes: the source access network device receives valid time information from the target access network device, and the valid time information indicates the valid time of the conditional switching configuration of the terminal device; The network device determines the time to release the conditional switching configuration of the terminal device according to the effective time information.
  • the present application provides a configuration method, which includes: the source access network device determines valid time information, and the valid time information indicates the valid time of conditional switching configuration of the terminal device; the source access network device sends the target access network The device sends valid time information.
  • the source access network device sends the effective time information to the target access network device, so that the target access network device can release resources related to CHO configuration in time according to the effective time information, reduce resource overhead, and improve target access
  • the DU and CU-UP performance of network equipment can be improved to improve the overall system performance.
  • the source access network device determines the effective time information, including: the source access network device determines the valid time information according to the location information of the terminal device, the cell coverage information of the target access network device, and the satellite network corresponding to the target access network device.
  • the calendar information determines the effective time information.
  • the method further includes: the source access network device determines a time to release the conditional handover configuration of the terminal device according to the effective time information.
  • the cell coverage information includes at least one of the following:
  • the target access network device is a satellite
  • the ephemeris information includes at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the present application provides a configuration method, which includes: the target access network device receives valid time information from the source access network device, and the valid time information indicates the valid time of the conditional switching configuration of the terminal device; The network device determines the time to release the conditional switching configuration of the terminal device according to the effective time information.
  • the target access network device can release resources related to CHO configuration in time according to the effective time information, reduce resource overhead, improve the DU and CU-UP performance of the target access network device, and improve the overall system performance.
  • the target access network device includes a centralized unit control plane entity, a centralized unit user plane entity, and a distributed unit; the method further includes: the centralized unit control plane entity of the target access network device is directed to At least one of the user plane entity of the centralized unit of the target access network device and the distributed unit sends valid time information.
  • the present application further provides a communication device, where the communication device has any method or any implementation manner provided for implementing any one of the first aspect to the seventh aspect.
  • the communication device may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the communication device includes: a processor, where the processor is configured to support the communication device to perform corresponding functions of the access network device in the methods shown above.
  • the communication device may also include a memory, which may be coupled to the processor, which holds program instructions and data necessary for the communication device.
  • the communication device further includes an interface circuit, where the interface circuit is used to support communication between the communication device and devices such as terminal equipment or access network equipment.
  • the structure of the communication device includes a processing unit and a communication unit, and these units can perform the corresponding functions in the above method examples.
  • these units can perform the corresponding functions in the above method examples.
  • a communication device including a processor and an interface circuit, and the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or send signals from the processor
  • the processor is configured to execute a computer program or an instruction stored in the memory to implement the method in any possible implementation manner of any one of the foregoing first to seventh aspects.
  • the device further includes a memory in which computer programs or instructions are stored.
  • a computer-readable storage medium is provided, and a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is run on a computer, the computer realizes the aforementioned first aspect to the seventh aspect A method in any possible implementation of any aspect.
  • a computer program product storing computer-readable instructions.
  • the computer-readable instructions When the computer-readable instructions are run on a computer, the computer can realize any possible function of any one of the aforementioned first to seventh aspects. method in the implementation.
  • a chip in a twelfth aspect, includes a processor, and may also include a memory, the processor is coupled to the memory, and is used to execute computer programs or instructions stored in the memory, so that the chip implements the aforementioned first aspect to the seventh aspect A method in any possible implementation of any aspect.
  • a communication system in a thirteenth aspect, includes a device for realizing the first aspect (such as a DU of an access network device), a device for realizing the second aspect (such as a CU of an access network device), and a device for realizing the third aspect devices (such as terminal equipment).
  • a device for realizing the first aspect such as a DU of an access network device
  • a device for realizing the second aspect such as a CU of an access network device
  • the third aspect devices such as terminal equipment
  • a communication system in a fourteenth aspect, includes an apparatus for realizing the fourth aspect (such as a target access network device) and an apparatus for realizing the fifth aspect (such as a source access network device).
  • a communication system in a fifteenth aspect, includes an apparatus for realizing the sixth aspect (such as a source access network device) and an apparatus for realizing the seventh aspect (such as a target access network device).
  • FIG. 1 is a schematic diagram of a network architecture applicable to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an access network device provided in an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an NTN scenario applicable to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another NTN scenario applicable to the embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a configuration method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a timing advance reporting method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a timing advance reporting method provided by an embodiment of the present application.
  • FIG. 8 is a schematic flow chart of a method for configuring valid time information provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a method for configuring valid time information provided by an embodiment of the present application.
  • FIG. 10 is a schematic flow chart of a communication method provided in an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the embodiments of the present application can be applied to various mobile communication systems, such as: new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system and other communication systems such as future communication systems in 5G, specifically, There is no limitation here.
  • new radio new radio
  • LTE long term evolution
  • 5G future communication systems in 5G
  • a terminal device may also be referred to as a user device, which is a device with a wireless transceiver function or a chip that may be provided in the device.
  • the terminal device in the embodiment of the present application may be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal, an augmented reality (augmented reality) , AR) terminals, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • the embodiments of the present application do not limit the application scenarios.
  • the aforementioned devices with wireless transceiver functions and the chips that can be installed in the devices are collectively referred to as terminal devices.
  • Access network equipment can also be called radio access network (radio access network, RAN) equipment, which can be wireless access equipment under various standards, for example, it can be a next generation base station (next generation node B, gNB) in the NR system ), which may be an evolved Node B (evolved Node B, eNB), etc.
  • radio access network radio access network
  • RAN radio access network
  • gNB next generation base station
  • eNB evolved Node B
  • eNB evolved Node B
  • FIG. 1 it is a schematic diagram of a network architecture applicable to the embodiment of the present application.
  • the 5G core network core network, CN
  • NG-RAN next generation radio access network
  • the NG-RAN includes one or more gNBs, and the gNBs are connected through the Xn interface.
  • the gNB can adopt a distributed architecture, including one or more DUs and a CU, and the CU and DU are connected through the F1 interface.
  • DUs and CUs can be deployed in the same geographic location, or distributed in different geographic locations.
  • the function segmentation of CU and DU can be divided according to the protocol stack.
  • One possible way can adapt radio resource control (radio resource control, RRC), service data The service data adaptation protocol (SDAP) and packet data convergence protocol (PDCP) layers are deployed in the CU, and the rest of the radio link control (radio link control, RLC) layer, media access control (media access control, MAC) Layer and physical layer (physical, PHY) are deployed in DU.
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • PDCP packet data convergence protocol
  • RLC radio link control
  • media access control media access control
  • MAC media access control
  • physical layer physical, PHY
  • CU represents gNB to connect to core network through NG interface
  • CU represents gNB to connect to other gNB through Xn interface
  • CU can also perform dual connection operation on behalf of gNB to connect with other eNB through X2 port.
  • the functions of the CU may be implemented by one entity or by different entities.
  • the functions of the CU can be further divided, for example, the control plane (CP) and the user plane (UP) are separated, that is, the control plane (CU-CP) and the CU user plane (CU-UP) of the CU.
  • the CU-CP and CU-UP can be implemented by different functional entities, and the CU-CP and CU-UP can be coupled with the DU to jointly complete the functions of the base station.
  • the CU-CP is responsible for the control plane function, mainly including the RRC and the PDCP corresponding to the control plane (that is, PDCP-C).
  • PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission, etc.
  • CU-UP is responsible for user plane functions, mainly including SDAP and PDCP (ie PDCP-U) corresponding to the user plane.
  • the SDAP is mainly responsible for processing the data of the core network and mapping the data flow (flow) to the bearer.
  • PDCP-U is mainly responsible for encryption and decryption of the data plane, integrity protection, header compression, serial number maintenance, data transmission, etc.
  • CU-CP and CU-UP are connected through E1 interface.
  • the CU-CP represents the gNB and connects to the core network through the Ng interface. Connect with DU through F1-C (control plane).
  • CU-UP is connected to DU through F1-U (user plane).
  • PDCP-C is also in CU-UP.
  • FIG. 3 shows a schematic diagram of an NTN scenario applicable to the embodiment of the present application.
  • the terminal device communicates with the 5G core network (core network, CN) through NG-RAN.
  • NG-RAN includes gNB, and gNB is composed of CU and DU.
  • the DU of the gNB may be a satellite.
  • there may be devices such as an NTN gateway (gateway) between the CU and the DU, and devices such as the DU and the NTN gateway are connected through a satellite radio interface (SRI).
  • SRI satellite radio interface
  • the F1 interface on top of this transmits signals, and the NTN gateway and other devices transmit signals through the F1 interface with the CU.
  • the NG-RAN includes gNB and satellites.
  • the satellite can be used as a relay device, located between the gNB and the terminal device, and there can also be devices such as an NTN gateway between the satellite and the gNB.
  • the satellite repeats the signal from the NR-Uu radio interface from the service link (between the satellite and the terminal equipment) to the feeder link (between the NTN gateway and the satellite) and passes this signal through the satellite radio interface on the feeder link (same as the NR-Uu radio interface signal, in other words, the satellite does not terminate or change the NR-Uu radio interface signal) to the NTN gateway, which supports forwarding the signal to the gNB and vice versa. Satellites can filter and amplify received physical signals.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
  • the DU in the access network device can configure TA report configuration information for the terminal device, wherein the TA report configuration information can be used to adjust the TA of the terminal device
  • the reporting timing, TA reporting conditions, and TA reporting methods make the TA reporting timing, TA reporting conditions, and TA reporting methods of the terminal device meet the DU scheduling requirements, and better improve the DU scheduling efficiency, which will be described in detail below.
  • FIG. 5 it is a schematic flowchart of a configuration method provided by the embodiment of the present application, and the flowchart in FIG. 5 can be applied to FIGS. 1 to 4 .
  • the access network device in Figure 5 can be a gNB, and the DU of the access network device can be a satellite; or, the access network device in Figure 5 can be a gNB, and the DU of the access network device is deployed on the ground, and the satellite is used as a terminal device Relay equipment between access network equipment.
  • the method includes:
  • S501 The DU of the access network device determines first configuration information.
  • the first configuration information includes configuration information for the terminal device to report timing advance information.
  • the terminal device may determine whether to report timing advance information according to the first configuration information.
  • the terminal device may determine, according to the first configuration information, to report information such as time or time and times of timing advance.
  • the first configuration information may also be referred to as TA-reported configuration information, and the present application does not limit the specific name of the first configuration information.
  • the timing advance information reported by the terminal device may be a timing advance determined, for example calculated, by the terminal device, and/or related parameters or information used to determine the timing advance, and the relevant parameters or information may include: location information of the terminal device , one or more of the cell coverage information of the DU and the ephemeris information corresponding to the DU.
  • the timing advance information may also include other parameters or information for calculating the timing advance, which is not limited in this application.
  • the timing advance information reported by the terminal device may be the uplink and/or downlink delay from the terminal device to the satellite device, or it may be "the uplink (and/or downlink) time delay from the terminal device to the satellite device.”
  • Delay and “the uplink (and/or downlink) delay from the center position of the satellite cell ground to the satellite equipment", or the location information of the terminal equipment.
  • the “uplink (and/or downlink) delay from the terminal device to the satellite device” can be determined by the terminal device based on the location information and ephemeris information of the terminal device, or the above deviation can also be determined by the terminal device according to the center of the terminal device to the ground of the satellite cell The location is fixed.
  • the first configuration information may include various information, for example, the first configuration information may include at least one of the following:
  • the timing advance offset (offset) threshold is used for the terminal device to determine whether the absolute value of the difference between its latest timing advance and the last successfully reported timing advance is higher than the timing advance offset threshold. For example, if the terminal device determines that the absolute value of the difference between its latest timing advance and the last reported timing advance is higher than the timing advance offset threshold, the terminal device determines to report the latest timing advance information.
  • the timing advance information reporting type may be used to indicate whether the terminal device reports the timing advance information through an RRC message or reports the timing advance information through a MAC control element (control element, CE).
  • the timing advance information of the terminal device may be location information of the terminal device.
  • the CU determines the timing advance of the terminal device based on the location information of the terminal device and sends it to the DU, or the CU sends the location information of the terminal device to the DU, and the DU determines the timing advance of the terminal device.
  • the random access reporting indication information of the timing advance information may be used to indicate whether the terminal device reports the timing advance information during the random access process.
  • the source network device switches the terminal device to the target cell under the target DU or the target base station. According to the information, the terminal device can determine whether to report the timing advance information to the target DU or the target base station during the random access process.
  • the time information reported by the timing advance information can be used to indicate the time for the terminal device to report the timing advance information; in one implementation, the time information includes one or more time points, and the terminal device can report at the time point indicated by the time information Timing advance information; in another implementation manner, the time information may include a period for reporting the timing advance information, and the terminal device may report the timing advance information periodically according to the period.
  • the number of times the timing advance information is reported may be used to indicate the maximum number of times the terminal device reports the timing advance information.
  • the first configuration information may also include other content, which is not limited in this application.
  • the DU of the access network device specifically determines the first configuration information is not limited in this application.
  • the DU can determine the distance between the terminal device and the DU according to the location information of the terminal device.
  • the DU may determine, according to the distance between the terminal device and the DU, the timing advance offset threshold value in the first configuration information, the reporting type of the timing advance information, time information, and the like.
  • the DU can set different timing advance offset thresholds, reporting types of timing advance information, and time information, thereby optimizing system performance and configuring different first configuration information for different terminal devices .
  • the DU of the access network device may send the first configuration information to the terminal device through the CU of the access network device, and the specific process may be as follows:
  • the DU sends the first configuration information to the CU.
  • the DU and the CU belong to the same access network device.
  • the foregoing first configuration information may be sent to the CU through one message, or may be sent to the CU through multiple messages.
  • the DU may send the first configuration information through a UE CONTEXT SETUP RESPONSE message or a UE CONTEXT MODIFICATION RESPONSE message or a UE CONTEXT MODIFICATION REQUIRED message.
  • the first configuration information may be carried by a DU to CU RRC Information (DU to CU RRC Information) information element in the above message.
  • DU to CU RRC Information DU to CU RRC Information
  • the CU may send a first message to the DU, where the first message is used to request the first configuration information.
  • the DU After receiving the first message, the DU sends the first configuration information to the CU.
  • the CU may send a second message to the DU, where the second message includes second configuration information, and the second configuration information is configuration information configured by the CU for the terminal device to report the timing advance information.
  • the DU sends the third message to the CU.
  • the third message includes feedback information and/or first configuration information, where the feedback information is used to indicate that the DU has received the second configuration information, and the first configuration information is updated information on the second configuration information.
  • the DU does not need to feed back the first configuration information.
  • the third message may only include feedback information, indicating that the DU has received the second configuration information, and the DU may not update the second configuration information to the first configuration information.
  • the CU can also update the configuration information.
  • the first configuration information sent by the DU to the CU includes all items included in the second configuration information, and some or all of the items are updated by the DU.
  • the first configuration information sent by the DU to the CU contains some of the items in the second configuration information updated by the DU, and the CU replaces these items in the second configuration information with the updated values, and the CU can also notify The DU has replaced some items in the second configuration information.
  • a negotiation mechanism is formed between the DU and the CU, which enables the DU to more accurately determine the timing advance configuration information, and strengthen the cooperation between the DU and the CU, thereby improving system stability.
  • S503 The CU sends the first configuration information to the terminal device.
  • the CU may send the first configuration information through an RRC message, or may send the first configuration information through a system message, which is not limited in this application.
  • the terminal device reports first timing advance information to the DU according to the first configuration information.
  • the first timing advance information is sent according to the first configuration information, that is, the terminal device determines whether to send the first timing advance information according to the first configuration information, and reports the first timing advance information to the DU if it is determined to send the first timing advance information .
  • the terminal device may directly report the first timing advance information to the DU, or may report the first timing advance information to the DU through the CU.
  • the first timing advance information may also be referred to as user equipment specific (UE specific) timing advance.
  • the first configuration information includes a timing advance offset threshold value, a type of timing advance information reporting, time information of timing advance information reporting, and times of timing advance information reporting.
  • MAC CE timing advance information reporting type
  • the terminal device determines the timing advance, if the absolute value of the difference between the timing advance determined by the terminal device and the timing advance successfully reported by the terminal device last time is greater than or equal to the timing Advance the offset threshold value, and determine that the number of times that the timing advance information has been reported is less than the number of times indicated by the first configuration information, then the first timing advance information can be reported to the DU through the MAC CE.
  • the difference between the first timing advance and the last timing advance successfully reported by the terminal device is used as an example for illustration. It does not mean that it must be the difference between the first timing advance and the last timing advance successfully reported by the terminal device. The difference between a certain timing advance and any successfully reported timing advance, where there are similar descriptions below, will not be repeated.
  • the first configuration information includes a timing advance offset threshold value and a timing advance information reporting type, where the timing advance information reporting type indicates that the timing advance information is reported through an RRC message.
  • the terminal device determines the timing advance, if the absolute value of the difference between the timing advance determined by the terminal device and the timing advance successfully reported by the terminal device last time is greater than or equal to the timing advance offset threshold, the RRC message can be sent to the CU The first timing advance information is reported, and then the CU forwards the first timing advance information to the DU.
  • the terminal device may not report the determined timing advance, but report the location information of the terminal device to the CU through an RRC message, that is, the first timing advance information includes the location information of the terminal device.
  • the CU forwards the location information to the DU, and the DU calculates the timing advance itself, or the CU calculates the timing advance, and then forwards the timing advance to the DU.
  • the terminal device determines the timing advance and uses the timing advance to determine whether to report the first timing advance information
  • the first timing advance information finally reported by the terminal device may not include the timing in advance.
  • the DU can control the timing advance information reported by the terminal device by configuring the timing advance offset threshold value in the first configuration information.
  • the DU can improve the scheduling efficiency and performance of the DU by controlling the timing of reporting the timing advance information by the terminal equipment.
  • the timing advance information random access reporting indication information included in the first configuration information is used to indicate to report dedicated timing advance information during the random access process, and the terminal device can report the first timing advance information during the random access process. .
  • the timing advance offset threshold there is no need to consider whether the absolute value of the difference between the first timing advance and the last reported timing advance is greater than or equal to the timing advance offset threshold.
  • the DU can update the first configuration information according to the first timing advance information reported by the terminal device, and forward the updated first configuration information to the terminal through the CU equipment.
  • the DU can configure the first configuration information for the terminal device according to its own situation, and send it to the terminal device through the CU.
  • the DU can control the timing of the terminal device to report timing advance information. , so that the reporting timing of the timing advance information of the terminal device meets the scheduling requirements of the DU, improves the scheduling efficiency of the DU, and improves the performance of the overall cell.
  • the terminal device before the terminal device determines to report the first timing advance information according to the first configuration information, it may further calculate the first timing advance, and the first timing advance may be included in the first timing advance information.
  • the terminal device may calculate the first timing advance according to at least one of the first information and the second information, the first information may be the cell coverage information of the DU, and the second information may be the ephemeris information corresponding to the DU.
  • the information required by the terminal device to calculate the timing advance can be provided by the DU; in another possible implementation manner, the information required for the calculation of the timing advance can also be provided by the CU, for example, the CU provides the pre-stored Information such as cell coverage information and ephemeris information.
  • the DU of the network access device may be a satellite.
  • the DU of the access network device sends at least one of the first information and the second information to the terminal device through the CU of the access network device.
  • the method includes:
  • S600 The CU of the access network device sends a request message to the DU of the access network device, where the request message is used to request the DU to send at least one of the first information and the second information.
  • the DU of the access network device sends at least one item of the first information and the second information to the CU.
  • the CU of the access network device sends at least one item of the first information and the second information to the terminal device.
  • the DU may send the first information and the second information to the CU through one message, or send the first information and the second information to the CU through multiple messages respectively.
  • the CU may send the first information and the second information to the terminal device through one message, or send the first information and the second information to the terminal device respectively through multiple messages.
  • the first information or the second information contains multiple items, the multiple items in the first information or the second information can be sent to the CU or the terminal in one message, or can be sent to the CU in multiple messages Or the terminal, so I won’t go into details.
  • the first information may be cell coverage information of the DU
  • the second information may be ephemeris information corresponding to the DU.
  • the ephemeris information corresponding to the DU can be divided into two cases.
  • the first case when the DU of the access network device is a satellite, the ephemeris information refers to the ephemeris information of the DU; in the second case, the access network device
  • the ephemeris information refers to the ephemeris information of the relay device corresponding to the DU.
  • the satellite is used as the relay device, the DU is connected to the satellite through the NTN gateway. In this case, the satellite is the relay device corresponding to the DU.
  • the first information may be sent by the DU to the CU through a first request message.
  • the specific name of the first request message is not limited, for example, the first request message may be an F1 setup request (SETUP REQUEST) message or a gNB-DU configuration update (GNB-DU CONFIGURATION UPDATE) message.
  • the first information may be carried by a serving cell information (Served Cell Information) information element in the first message.
  • Served Cell Information serving cell information
  • the second information may be sent by the DU to the CU through the second request message.
  • the specific name of the second request message is not limited, for example, the second request message may be an F1SETUP REQUEST message or a GNB-DU CONFIGURATION UPDATE message.
  • the first information may include at least one of the following:
  • the cell radius information is used to indicate the radius of the cell; the cell reference point information; the cell coverage shape information is used to indicate the shape of the cell, for example, the shape of the cell can be a circle or a hexagon. These pieces of information can all be referred to as cell coverage information of the DU.
  • the cell reference point information is geographical location information of a reference point in the cell, and the location of the reference point includes but not limited to the center position of the cell.
  • the terminal device can determine whether it should start cell reselection measurement.
  • the distance to the reference point is relatively close, it means that the terminal equipment is far away from the edge of the cell, and the cell reselection measurement may not be started to save power.
  • a terminal device when a terminal device performs cell reselection at the edge of a cell, it can confirm the distance between itself and other cells according to the reference point information of other cells, and select candidate cells, thereby improving the success rate of reselection and system performance. For example, a cell whose distance is smaller than a threshold is confirmed as a candidate cell, where the threshold may be configured by the network side, may also be determined by the terminal device, or may be preset.
  • the second information may include at least one of the following:
  • Satellite position information used to indicate the position of the satellite
  • satellite velocity state vectors velocity state vectors
  • satellite orbit elements orbital elements
  • the orbital parameters of the satellite such as the orbit Parameters include but are not limited to information such as orbital shape, dimension, and period. These information can all be called the ephemeris information corresponding to the DU.
  • the terminal device determines the first timing advance according to at least one of the first information and the second information, and the location information of the terminal device.
  • the first timing advance may be included in the first timing advance information in the process shown in FIG. 5 , and for details about the first timing advance information, reference may be made to the foregoing description.
  • the terminal device may determine the distance D 1 between the terminal device and the satellite according to the position information of the terminal device and the satellite position information.
  • the first timing advance determined by the terminal device according to D1 may satisfy the following form:
  • TA represents the first timing advance
  • c represents the speed of light
  • timing advance may also be determined in other ways, which will not be described one by one here.
  • the terminal may determine the location of the terminal device in the cell according to the cell reference point information in the first information and its own location information, and then determine the distance between the location of the terminal device and the reference point. For example, when the distance between the position of the terminal device and the reference point is less than the distance threshold, the terminal device can determine the first timing advance according to formula (1); when the distance between the position of the terminal device and the reference point is greater than or equal to the distance threshold, the terminal device The advance of the first timing may not be determined, thereby saving power.
  • the distance threshold may be configured by the access network device for the terminal device, may also be determined by the terminal device, or may be preset.
  • the terminal device may not send the first timing advance to the DU or CU, but use it by the terminal device itself, for example, for a synchronization process.
  • Whether the terminal device specifically sends the first timing advance may be determined according to actual conditions, which is not limited in this embodiment of the present application.
  • the terminal device may determine whether to report the first timing advance according to some items in the first configuration information described in the foregoing embodiment shown in FIG. 5 .
  • the terminal device may also determine to report information such as the time of the first timing advance according to other items in the first configuration information.
  • the first information and the second information from the DU are used by the terminal device to determine the timing advance information, so that the terminal device can obtain the TA in time for synchronization with the access network device.
  • the terminal device after the terminal device determines the first timing advance, it can also send the first timing advance information to the DU, that is, execute S604:
  • the terminal device sends the first timing advance to the DU.
  • the terminal device may directly send the first timing advance to the DU, or may send the first timing advance to the DU through the CU.
  • the terminal device can determine whether to send the first timing advance information including the first timing advance to the DU according to the first configuration information, for example, if the first timing advance is not the same as the terminal device
  • the absolute value of the difference between the last successfully reported timing advances is greater than or equal to the timing advance offset threshold in the first configuration information, and the terminal device may send the first timing advance information to the DU.
  • the timing advance may also be determined by the CU (the timing advance is called the second timing advance) and forwarded to the DU, or the DU may independently determine the timing advance (the timing advance is called the third timing advance). Therefore, not only the terminal equipment can calculate the timing advance, but also the CU or DU can calculate the timing advance, which increases the reliability of the system. For example, when the timing advance calculated by the terminal device fails to be reported, for example, cannot be reported or received by the DU, or when the terminal device cannot calculate the timing advance, the CU or DU may calculate the timing advance.
  • the CU determines the second timing advance and forwards the second timing advance to the DU, then the CU can determine the second timing advance according to at least one of the first information and the second information, as well as the location information of the terminal device.
  • the specific process Similar to the above-mentioned process of determining the first timing advance by the terminal device, details are not repeated here.
  • the DU autonomously determines the third timing advance, as shown in Figure 7, the following steps may be included:
  • S701 The CU sends a location request message to the terminal device.
  • the location request message is used to request location information of the terminal device.
  • the timing advance information report type in the timing advance information reporting configuration information is "RRC message", and the terminal device may obtain the calculated first timing advance with the previous success
  • the absolute value of the difference between the reported timing advances is greater than or equal to the timing advance offset threshold value in the first configuration information, thereby triggering the terminal device to report the location information.
  • the type of timing advance report is indicated as "RRC message”
  • whether the terminal device reports the calculated first timing advance or reports location information is not limited here, and may be configured by the access network device or may be It is configured by the terminal device.
  • the terminal device sends the location information of the terminal device to the CU.
  • S703 The CU sends the location information of the terminal device to the DU.
  • the CU can send location information through a UE CONTEXT SETUP REQUEST message or a UE Context Modification Request (UE CONTEXT MODIFICATION REQUEST) message.
  • UE CONTEXT MODIFICATION REQUEST UE Context Modification Request
  • the above is just an example, and the CU may also send location information through other messages, which is not limited in this application.
  • the DU determines a third timing advance according to at least one of the first information and the second information, and the location information of the terminal device.
  • the specific process of determining the third timing advance by the DU is not limited in this application.
  • the above-mentioned process of determining the first timing advance by the terminal device may be referred to, or other methods may be used, which will not be repeated here.
  • the DU may also determine the first configuration information for the terminal device according to the location information of the terminal device.
  • the process shown in FIG. 6 and the process shown in FIG. 7 may be implemented separately or in combination, which is not limited in this embodiment of the present application. It can be understood that when the process shown in Figure 6 is combined with the process shown in Figure 7, the process of calculating the timing advance of the terminal device and the CU or DU is still independent, and this application calculates the timing advance of the CU or DU and the terminal device The order of calculating the timing advance is not limited in any way. Regardless of whether the terminal device calculates the timing advance, the DU can perform, for example, steps S701-S704 to complete the calculation of the timing advance. In one embodiment, the DU starts calculating the timing advance after receiving the first information and/or the second information sent by the CU.
  • the terminal device performs, for example, S504 to report the first timing advance information to the DU, and the first timing advance information does not include the timing advance, indicating that the terminal does not calculate the timing advance or does not report the timing advance to the DU even if it calculates the timing advance, and the DU
  • the calculation of the timing advance may be started after receiving the first timing advance information.
  • the terminal device executes, for example, S604 to report the timing advance to the DU, but fails to report, then the DU may start the calculation of the timing advance after the timing advance that has not been reported by the terminal device reaches the preset duration, for example, execute Step S704.
  • the DU sets a timer, which is used to determine the time period for which the timing advance has not been received.
  • FIG. 8 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 8 For specific content of the steps in FIG. 8 , reference may be made to the descriptions in FIG. 5 to FIG. 7 , and details are not repeated here.
  • the DU sends first configuration information to the CU.
  • S802 The CU sends the first configuration information to the terminal device.
  • the DU sends at least one item of the first information and the second information to the CU.
  • S804 The CU sends at least one item of the first information and the second information to the terminal device.
  • the terminal device sends the location information of the terminal device to the CU.
  • S806 The CU sends the location information of the terminal device to the DU.
  • S801 to S806 is just an example, and does not mean to limit it.
  • S801 and S803 may be executed at the same time, or may be executed in another order, which is not limited in the present application.
  • the terminal device determines the first timing advance according to at least one of the first information and the second information, and the location information of the terminal device.
  • the terminal device reports first timing advance information including the first timing advance to the DU according to the first configuration information.
  • S809 or S810 may also be executed.
  • the DU determines a third timing advance according to at least one of the first information and the second information, and the location information of the terminal device.
  • S810 the CU sends the second timing advance to the DU.
  • the second timing advance is determined by the CU according to at least one item of the first information and the second information, and the location information of the terminal device.
  • the terminal device when the terminal device is conditionally handed over (conditional handover, CHO) from the source access network device to the target access network device, a method is also provided to implement the source access network device and the target access network device.
  • the effective time information of the CHO configuration is exchanged between devices.
  • the CHO configuration may include CHO candidate cell configuration information and a trigger condition, and the valid time information may be a trigger condition.
  • the source access network device and the target access network in Figure 9 can be a gNB.
  • the source access network device can be a gNB with CU and DU separated, or a gNB with CU and DU not separated.
  • the network access device as a whole can be a satellite or the DU of the source access network device can be a satellite, and the source access network device can also be a gNB deployed on the ground;
  • the target access network device can be a gNB with CU and DU separated, or It can be a gNB where the CU and DU are not separated, and part or all of the functions of the target access network device are performed by the satellite.
  • the target access network device as a whole can be a satellite or the DU of the target access network device can be a satellite.
  • the network access device can also be a gNB deployed on the ground, and the method includes:
  • S901 The target access network device determines valid time information.
  • the valid time information may indicate the valid time of the CHO configuration of the terminal device, and the valid time information may include at least two of a start time, an end time, and a valid duration.
  • a possible implementation of effective time information is [T1, T2], where T1 represents the start time, and the terminal device can switch to the target access network device at the earliest time condition of T1; T2 represents the end time, and the terminal device can Conditionally switch to the target access network device at the latest at time T2. That is, the terminal device only performs CHO within the [T1, T2] time period.
  • the target access network device after this period of time, the CHO configuration prepared for the terminal device can be released, or different terminal devices can share the CHO configuration at different valid times.
  • the time for the target access network device to release resources is not necessarily specified as T2, and any time after T2 can be used as the time for releasing resources, which is specifically determined by the target access network device according to the actual situation.
  • the valid time information may be determined by the CU or CU-CP of the target access network device. How the target access network device determines the valid time information is not limited by this embodiment of the present application.
  • the target access network device may determine the valid time information according to the location information of the terminal device, the cell coverage information of the target access network device, and the ephemeris information corresponding to the target access network device.
  • the cell coverage information may include at least one of the following:
  • the ephemeris information may include at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the CU or CU-CP of the target access network device can receive the ephemeris information and cell coverage information corresponding to the DU from the target access network device, and receive Location information of the terminal device from the source access network device.
  • the ephemeris information corresponding to the DU can be divided into two cases.
  • the ephemeris information refers to the ephemeris information of the DU; in the second case, the access network device When the DU is not a satellite and the satellite is a relay, the ephemeris information refers to the ephemeris information of the relay corresponding to the DU.
  • the CU or CU-CP of the target access network device may determine the effective time information.
  • the CU or CU-CP of the target access network device sends the location information of the terminal device to the DU of the target access network device, and the DU of the target access network device determines the effective time information, and then Then send the effective time information back to the CU or CU-CP.
  • S902 The target access network device sends valid time information to the source access network device.
  • the CU or CU-CP of the target access network device may send valid time information to the source access network device.
  • the target access network device may send the effective time information through the first handover message.
  • the specific name of the first handover message is not limited in this application, for example, the valid time information may be sent through a handover request confirmation (HANDOVER REQUEST ACKNOWLEDGE) message.
  • the source access network device may determine the time to release the conditional handover configuration of the terminal device according to the valid time information. For example, when the time exceeds or is equal to the end time indicated by the valid time information, the source access network device may release the CHO configuration corresponding to the terminal device, thereby saving resources of the access network device and improving system performance.
  • the target access network device is a distributed architecture
  • the following process may also exist:
  • S903 The CU or CU-CP of the target access network device sends valid time information to the DU of the target access network device.
  • the valid time information can be sent through UE contention setup request (UE CONTEST SETUP REQUEST) or UE context modification request (UE CONTEXT MODIFICATION REQUEST) message.
  • UE contention setup request UE CONTEST SETUP REQUEST
  • UE context modification request UE CONTEXT MODIFICATION REQUEST
  • the effective time information may also be sent through other messages, which is not limited in this application.
  • S904 The CU or CU-CP of the target access network device sends valid time information to the CU-UP of the target access network device.
  • the valid time information may be sent through a bearer context establishment request (BEARER CONTEXT SETUP REQUEST) message.
  • BEARER CONTEXT SETUP REQUEST a bearer context establishment request
  • the effective time information may also be sent through other messages, which is not limited in this application.
  • the execution order of S903 and S904 is not limited, and the above is just an example, and does not mean that the execution order is limited.
  • the DU or CU-UP of the target access network device can determine the time to release the CHO configuration of the terminal device according to the valid time information.
  • the target access network device independently determines the effective time of the CHO configuration, and can independently control the release time of resources related to the CHO configuration, and realize efficient utilization of resources. Furthermore, the DU or CU-UP of the target access network device can release resources related to CHO configuration in time according to the effective time information, reduce resource overhead, improve DU and CU-UP performance, and improve overall system performance.
  • the source access network device may also determine the valid time information, as shown in FIG. 10 , which is a schematic flowchart of a method for configuring valid time information provided in the embodiment of the present application.
  • the method includes:
  • S1001 The source access network device determines valid time information.
  • the source access network device may determine the effective time information according to the location information of the terminal device, the cell coverage information of the target access network device, and the ephemeris information corresponding to the target access network device. For details on how to determine the effective time information, reference may be made to the description of determining the effective time information by the target access network device in S901 above, which will not be repeated here.
  • the cell coverage information of the target access network device and the ephemeris information corresponding to the target access network device may come from the target access network device, and the location information of the terminal device may come from the terminal device.
  • the source access network device After the source access network device determines the valid time information, it may determine the time to release the conditional handover configuration of the terminal device according to the valid time information.
  • S1002 The source access network device sends valid time information to the target access network device.
  • the source access network device may send the valid time information through the second handover message.
  • the specific name of the second handover message is not limited in this application, for example, the valid time information may be sent through a handover request (HANDOVER REQUEST) message.
  • the effective time information may be carried by a conditional handover information request (Conditional Handover Information Request) information element in the handover request.
  • the CU or CU-CP of the target access network device can receive valid time information from the source access network device.
  • the target access network device is a distributed architecture
  • the following process may also exist:
  • S1003 The CU or CU-CP of the target access network device sends valid time information to the DU of the target access network device.
  • S1004 The CU or CU-CP of the target access network device sends valid time information to the CU-UP of the target access network device.
  • the execution order of S1003 and S1004 is not limited, and the above is just an example, and does not mean that the execution order is limited.
  • the DU or CU-UP of the target access network device can determine the time to release the CHO configuration of the terminal device according to the valid time information.
  • the DU or CU-UP of the target access network device can release resources related to CHO configuration in time according to the effective time information, reduce resource overhead, improve DU and CU-UP performance, and improve the overall system performance.
  • the access network device, the terminal device or the above-mentioned communication device may include a hardware structure and/or a software module, and a combination of a hardware structure, a software module, or a hardware structure plus a software module form to achieve the above-mentioned functions. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • each functional module in each embodiment of the present application may be integrated into one processor, or physically exist separately, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.
  • the embodiment of the present application further provides a communication device 1100 .
  • the communication apparatus 1100 may be used to implement the method corresponding to the access network device or the terminal device in the above method embodiment, and for specific functions, refer to the description in the above method embodiment.
  • the communication device 1100 may include: a processing unit 1101 and a communication unit 1102 .
  • the communication unit may also be referred to as a transceiver unit, and may include a sending unit and/or a receiving unit, respectively configured to perform the steps of sending and receiving by an access network device or a terminal device in the above method embodiments.
  • a communication unit may also be referred to as a transceiver, transceiver, transceiving device, or the like.
  • a processing unit may also be called a processor, a processing board, a processing module, a processing device, and the like.
  • the device in the communication unit 1102 for realizing the receiving function may be regarded as a receiving unit
  • the device in the communication unit 1102 for realizing the sending function may be regarded as a sending unit
  • the communication unit 1102 includes a receiving unit and a sending unit.
  • the communication unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit and the like.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • a processing unit configured to determine first configuration information, where the first configuration information includes configuration information for the terminal device to report timing advance information
  • a communication unit configured for the CU to send the first configuration information to the terminal device.
  • the communication unit may be configured to send the first configuration information to the CU, so that the CU sends the first configuration information to the terminal.
  • the first configuration information includes at least one of the following:
  • the communication unit is further configured to: receive a first message from the CU, where the first message is used to request first configuration information.
  • the communication unit is further configured to: receive a second message from the CU, the second message includes second configuration information, and the second configuration information is a configuration configured by the CU for the terminal device to report timing advance information information; wherein, the first configuration information is updated information on the second configuration information.
  • the communication unit is further configured to: receive first timing advance information from the terminal device, where the first timing advance information is sent according to the first configuration information.
  • the communication unit is further configured to: send at least one of the first information and the second information to the terminal device through the CU; wherein, the first information is the cell coverage information of the distributed unit, and the second information is the ephemeris information corresponding to the distributed unit.
  • the communication unit is further configured to: receive a second timing advance from the CU, where the second timing advance is determined by the CU according to at least one of the first information and the second information, and the location information of the terminal device of.
  • the communication unit is further configured to: receive the location information of the terminal device from the CU; the distributed unit determines the third information according to at least one of the first information and the second information, and the location information of the terminal device Timing advance; wherein, the first information is the cell coverage information of the distributed unit, and the second information is the ephemeris information corresponding to the distributed unit.
  • the first information includes at least one of the following:
  • the second information includes at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the processing unit is configured to receive first configuration information of the DU from the access network device through the communication unit, where the first configuration information includes configuration information for the terminal device to report timing advance information;
  • a processing unit configured to send the first configuration information to the terminal device through the communication unit.
  • the first configuration information includes at least one of the following:
  • the communication unit is further configured to: send a first message to the DU, where the first message is used to request first configuration information.
  • the communication unit is further configured to: send a third message to the DU, where the third message includes second configuration information, and the second configuration information is configured by the centralized unit for the terminal device to report timing advance information. Configuration information; wherein, the first configuration information is updated information on the second configuration information.
  • the communication unit is further configured to: receive at least one item of the first information and the second information from the DU; the centralized unit sends at least one item of the first information and the second information to the terminal device ;
  • the first information is the cell coverage information of the DU
  • the second information is the ephemeris information corresponding to the DU.
  • the processing unit is further configured to: determine the second timing advance according to at least one of the first information and the second information, and the location information of the terminal device;
  • the communication unit is further configured to: send the second timing advance to the DU.
  • the communication unit is further configured to: acquire the location information of the terminal device; and the centralized unit sends the location information to the DU.
  • the first information includes at least one of the following: cell radius information; cell reference point information; cell coverage shape information.
  • the second information includes at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the communication device 1100 when the behaviors and functions of the terminal device in the method embodiment shown in FIG. 5 above are implemented by the communication device 1100:
  • the communication unit is configured to receive first configuration information from the CU of the access network device, the first configuration information includes configuration information for the terminal device to report timing advance information, and the first configuration information is configured by the DU of the access network device;
  • a processing unit configured to report the first timing advance information to the DU according to the first configuration information.
  • the first configuration information includes at least one of the following:
  • the communication unit is further configured to: receive at least one of the first information and the second information from the DU through the CU; where the first information is the cell coverage information of the DU, and the second information is the cell coverage information of the DU. Corresponding ephemeris information.
  • the first configuration information includes a timing advance offset threshold
  • the processing unit is also used to determine the timing advance, and if the absolute value of the difference between the determined timing advance and the last successfully reported timing advance is greater than or equal to the timing advance offset threshold value, the processing unit according to the first configuration information Report the first timing advance information to the DU of the access network device through the communication unit.
  • the processing unit is further configured to: determine the first timing advance according to at least one of the first information and the second information, and the location information of the terminal device; where the first information is the access network device The cell coverage information of the DU of the DU, and the second information is the ephemeris information corresponding to the DU of the access network device.
  • a processing unit configured to determine valid time information, where the valid time information indicates the valid time of the conditional switching configuration of the terminal device
  • the communication unit is configured to send valid time information to the source access network device.
  • the processing unit is specifically used for:
  • Valid time information is determined according to the location information of the terminal device, the cell coverage information of the target access network device, and the ephemeris information corresponding to the target access network device.
  • the processing unit is further configured to: determine a time to release the conditional switching configuration of the terminal device according to the effective time information.
  • the target access network device includes a centralized unit control plane entity, a centralized unit user plane entity, and a distributed unit; the communication unit is also used to: send the centralized unit user plane entity of the target access network device At least one of the entity and the distributed unit sends valid time information.
  • the communication unit is configured to receive valid time information from the target access network device, where the valid time information indicates the valid time of the conditional handover configuration of the terminal device;
  • a processing unit configured to determine the time for releasing the conditional switching configuration of the terminal device according to the effective time information.
  • the communication device 1100 when the behavior and functions of the source access network device in the method embodiment shown in FIG. 10 are implemented by the communication device 1100:
  • a processing unit configured to determine valid time information, where the valid time information indicates the valid time of the conditional switching configuration of the terminal device
  • the communication unit is configured to send valid time information to the target access network device.
  • the processing unit determining the valid time information includes: determining the valid time information according to the location information of the terminal device, the cell coverage information of the target access network device, and the ephemeris information corresponding to the target access network device.
  • the processing unit is further configured to: determine a time to release the conditional switching configuration of the terminal device according to the effective time information.
  • the cell coverage information includes at least one of the following:
  • the target access network device is a satellite
  • the ephemeris information includes at least one of the following:
  • Satellite position information Satellite velocity state vector information; satellite orbit element information.
  • the communication device 1100 when the behavior and functions of the target access network device in the method embodiment shown in FIG. 10 are implemented by the communication device 1100:
  • the communication unit is configured to receive valid time information from the source access network device, where the valid time information indicates the valid time of the conditional switching configuration of the terminal device;
  • a processing unit configured to determine the time for releasing the conditional switching configuration of the terminal device according to the effective time information.
  • the target access network device includes a centralized unit control plane entity, a centralized unit user plane entity, and a distributed unit; the communication unit is also used to: send the centralized unit user plane entity of the target access network device At least one of the entity and the distributed unit sends valid time information.
  • processing unit 1101 and the communication unit 1102 may also perform other functions.
  • processing unit 1101 and the communication unit 1102 may also perform other functions.
  • the present application also provides an access network device including a centralized unit and a distributed unit.
  • the access network device may be a base station, wherein the centralized unit may execute the methods described in the method embodiments shown in FIGS. 5-10 .
  • the function of the CU described above; the distributed unit can execute the function of the DU described in the method embodiments shown in FIGS. 5-10 .
  • the centralized unit is the CU described in the device embodiment shown in FIG. 11
  • the distributed unit is the DU described in the device embodiment shown in FIG. 11 .
  • FIG. 12 shows a communication device 1200 provided in the embodiment of the present application.
  • the device shown in FIG. 12 may be a hardware circuit implementation of the device shown in FIG. 11 .
  • the communication device may be applicable to the flow chart shown above, and execute the functions of the terminal device or the access network device in the above method embodiments.
  • FIG. 12 only shows the main components of the communication device.
  • a communication device 1200 includes a processor 1210 and an interface circuit 1220 .
  • the processor 1210 and the interface circuit 1220 are coupled to each other.
  • the interface circuit 1220 may be a transceiver or an input/output interface.
  • the communication device 1200 may further include a memory 1230 for storing instructions executed by the processor 1210 or storing input data required by the processor 1210 to execute the instructions or storing data generated after the processor 1210 executes the instructions.
  • the processor 1210 is used to implement the functions of the processing unit 1101
  • the interface circuit 1220 is used to implement the functions of the communication unit 1102 .
  • the terminal device chip implements the functions of the terminal device in the above method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as radio frequency modules or antennas), and the information is sent to the terminal device by the access network device; or, the terminal device chip sends information to other modules in the terminal device (such as radio frequency modules) module or antenna) to send information, which is sent by the terminal device to the access network device.
  • the access network equipment chip implements the functions of the access network equipment in the above method embodiments.
  • the access network device chip receives information from other modules (such as radio frequency modules or antennas) in the access network device, and the information is sent by the terminal device to the access network device; or, the access network device chip sends information to the access network device Other modules in the device (such as radio frequency modules or antennas) send information, which is sent by the access network device to the terminal device.
  • the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices.
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • memory can be random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable Programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), registers, hard disk, mobile hard disk or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC may be located in the access network device or the terminal device.
  • the processor and the storage medium may also exist in the access network device or the terminal device as discrete components.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information.
  • Multiple appearing in the embodiments of the present application means two or more.
  • Transmit in the embodiments of the present application refers to two-way transmission, including actions of sending and/or receiving, unless otherwise specified.
  • transmission in the embodiments of the present application includes sending data, receiving data, or sending data and receiving data.
  • the data transmission here includes uplink and/or downlink data transmission.
  • Data may include information and/or signals, uplink data transmission means uplink information and/or uplink signal transmission, and downlink data transmission means downlink information and/or downlink signal transmission.
  • the terminal device and/or the access network device may perform some or all of the steps in the embodiment of the present application. These steps or operations are only examples. In the embodiment of the present application, other Operations or variants of operations. In addition, each step may be performed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all operations in the embodiment of the present application.

Landscapes

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

Abstract

本申请提供一种配置方法及装置，其中方法包括：接入网设备的分布式单元确定第一配置信息，所述第一配置信息包括用于终端设备上报定时提前信息的配置信息；所述接入网设备的分布式单元通过所述接入网设备的集中式单元向所述终端设备发送所述第一配置信息。通过上面的方法，由于第一配置信息可以用于触发终端设备上报定时提前信息，分布式单元通过配置第一配置信息，可以控制终端设备上报定时提前信息的上报时机。进一步的，由于终端设备上报定时提前信息的时机与分布式单元的调度时机相关，分布式单元通过控制终端设备上报定时提前信息的上报时机，可以提高分布式单元的调度效率和性能。

Description

一种配置方法及装置
相关申请的交叉引用
本申请要求在2021年10月20日提交中国专利局、申请号为202111223112.X、申请名称为“一种配置方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种配置方法及装置。
背景技术
在第五代(5-generation，5G)通信系统中，基站可以由集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU)构成，即对基站的功能进行拆分，将基站的部分功能部署在一个CU，将剩余功能部署在DU，多个DU可以共用一个CU，可以节省成本，以及易于网络扩展。为了实现终端与基站之间的时间同步，终端设备可以向基站上报定时提前(timing advance，TA)。该时间同步方式可以适用于终端设备与基站距离较远的场景，例如卫星通信即非地面网络(non-terrestrial network，NTN)中，在NTN场景中，卫星可以作为中继、基站，或者基站中的DU。
但是，当基站采用CU-DU的分布式架构时，如何为终端设备配置与TA上报相关的配置信息，从而达到优化系统性能的目标，是一个亟待解决的问题。
发明内容
本申请提供一种配置方法及装置，可以提高分布式架构的基站的系统性能。
第一方面，本申请提供一种配置方法，该方法包括：接入网设备的分布式单元确定第一配置信息，第一配置信息包括用于终端设备上报定时提前信息的配置信息；接入网设备的分布式单元通过接入网设备的集中式单元向终端设备发送第一配置信息。
通过上面的方法，由于第一配置信息可以用于触发终端设备上报定时提前信息，分布式单元通过配置第一配置信息，可以控制终端设备上报定时提前信息的上报时机。进一步的，由于终端设备上报定时提前信息时机与分布式单元的调度时机相关，分布式单元通过控制终端设备上报定时提前信息的上报时机，可以提高分布式单元的调度效率和性能。
一种可能的实现方式中，终端设备上报的定时提前信息包括终端设备确定的定时提前，和/或，用于确定定时提前的参数或信息。
一种可能的实现方式中，第一配置信息包括以下至少一项：
定时提前偏移门限值；定时提前信息上报类型；定时提前信息的随机接入上报指示信息；定时提前信息上报的时间信息；定时提前信息上报的次数。
一种可能的实现方式中，该方法还包括：分布式单元接收来自集中式单元的第一消息，第一消息用于请求第一配置信息。
一种可能的实现方式中，该方法还包括：分布式单元接收来自集中式单元的第二消息， 第二消息包括第二配置信息，第二配置信息为集中式单元为终端设备配置的用于上报定时提前信息的配置信息；其中，第一配置信息为对第二配置信息更新后的信息。可选地，分布式单元接收到第二消息之后，向集中式单元发送第三消息，该第三消息包括反馈信息和/或第一配置信息，其中，反馈信息用于指示分布式单元已经接收到第二配置信息。一种可能的实现方式中，该方法还包括：分布式单元接收来自终端设备的第一定时提前信息，第一定时提前信息是根据第一配置信息发送的。
通过上面的方法，通过配置第一配置信息控制终端设备上报定时提前信息的上报时机，可以提高分布式单元的调度效率和性能。
一种可能的实现方式中，该方法还包括：分布式单元通过集中式单元向终端设备发送第一信息和第二信息中的至少一项；其中，第一信息为分布式单元的小区覆盖信息，第二信息为分布式单元对应的星历信息。
一种可能的实现方式中，该方法还包括：分布式单元接收来自集中式单元的第二定时提前，第二定时提前为集中式单元根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定的。
通过上面的方法，CU可以计算定时提前，增加系统可靠性。例如，当终端设备计算的定时提前未成功上报，例如无法上报或者无法被DU接收时，或者当终端设备无法计算定时提前时，可以由CU来计算定时提前。
一种可能的实现方式中，该方法还包括：分布式单元接收来自集中式单元的终端设备的位置信息；分布式单元根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第三定时提前；其中，第一信息为分布式单元的小区覆盖信息，第二信息为分布式单元对应的星历信息。
通过上面的方法，DU可以计算定时提前，增加系统可靠性。例如，当终端设备计算的定时提前未成功上报，例如无法上报或者无法被DU接收时，或者当终端设备无法计算定时提前时，可以由DU来计算定时提前。
一种可能的实现方式中，第一信息包括以下至少一项：
小区半径信息；小区参考点信息；小区覆盖形状信息。
一种可能的实现方式中，第二信息包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
第二方面，本申请提供一种配置方法，该方法包括：接入网设备的集中式单元接收来自接入网设备的分布式单元的第一配置信息，第一配置信息包括用于终端设备上报定时提前信息的配置信息；接入网设备的集中式单元向终端设备发送第一配置信息。
一种可能的实现方式中，第一配置信息包括以下至少一项：
定时提前偏移门限值；定时提前信息上报类型；定时提前信息的随机接入上报指示信息；定时提前信息上报的时间信息；定时提前信息上报的次数。一种可能的实现方式中，该方法还包括：集中式单元向分布式单元发送第一消息，第一消息用于请求第一配置信息。
一种可能的实现方式中，该方法还包括：集中式单元向分布式单元发送第二消息，第二消息包括第二配置信息，第二配置信息为集中式单元为终端设备配置的用于上报定时提前信息的配置信息；其中，第一配置信息为对第二配置信息更新后的信息。可选地，集中式单元还接收到来自分布式单元的第三消息，该第三消息包括反馈信息和/或第一配置信息，其中，反馈信息用于指示分布式单元已经接收到第二配置信息。
一种可能的实现方式中，该方法还包括：集中式单元接收来自分布式单元的第一信息和第二信息中的至少一项；集中式单元向终端设备发送第一信息和第二信息中的至少一项；其中，第一信息为分布式单元的小区覆盖信息，第二信息为分布式单元对应的星历信息。
一种可能的实现方式中，该方法还包括：集中式单元根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第二定时提前；集中式单元向分布式单元发送第二定时提前。
一种可能的实现方式中，该方法还包括：集中式单元获取终端设备的位置信息；集中式单元向分布式单元发送位置信息。
一种可能的实现方式中，第一信息包括以下至少一项：小区半径信息；小区参考点信息；小区覆盖形状信息。
一种可能的实现方式中，第二信息包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
第三方面，本申请提供一种配置方法，该方法包括：终端设备接收来自接入网设备的集中式单元的第一配置信息，第一配置信息包括用于终端设备上报定时提前信息的配置信息，第一配置信息由接入网设备的分布式单元配置；终端设备根据第一配置信息向接入网设备的分布式单元上报第一定时提前信息。
一种可能的实现方式中，第一配置信息包括以下至少一项：
定时提前偏移门限值；定时提前信息上报类型；定时提前信息的随机接入上报指示信息；定时提前信息上报的时间信息；定时提前信息上报的次数。一种可能的实现方式中，该方法还包括：终端设备通过集中式单元接收来自分布式单元的第一信息和第二信息中的至少一项；其中，第一信息为分布式单元的小区覆盖信息，第二信息为分布式单元对应的星历信息。
一种可能的实现方式中，第一配置信息包括定时提前偏移门限值；终端设备根据第一配置信息向接入网设备的分布式单元上报第一定时提前信息，包括：若终端设备确定的定时提前与上一次成功上报的定时提前之间的差值的绝对值大于或等于定时提前偏移门限值，终端设备根据第一配置信息向接入网设备的分布式单元上报第一定时提前信息。
一种可能的实现方式中，所述方法还包括：终端设备根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第一定时提前；其中，第一信息为接入网设备的分布式单元的小区覆盖信息，第二信息为接入网设备的分布式单元对应的星历信息。
第四方面，本申请提供一种配置方法，该方法包括：目标接入网设备确定有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；目标接入网设备向源接入网设备发送有效时间信息。
通过上面的方法，目标接入网设备自主确定CHO配置的有效时间，可以实现自主控制CHO配置相关的资源的释放时间，实现资源的高效利用。
一种可能的实现方式中，目标接入网设备确定有效时间信息，包括：
目标接入网设备根据终端设备的位置信息、目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息确定有效时间信息。
一种可能的实现方式中，该方法还包括：目标接入网设备根据有效时间信息确定释放终端设备的条件切换配置的时间。
通过上面的方法，目标接入网设备可以根据该有效时间信息及时释放CHO配置相关 的资源，降低资源开销，提高目标接入网设备的DU和CU-UP性能，提升整体系统性能。
一种可能的实现方式中，目标接入网设备包括集中式单元控制面实体、集中式单元用户面实体以及分布式单元；该方法还包括：
目标接入网设备的集中式单元控制面实体向目标接入网设备的集中式单元用户面实体以及分布式单元中的至少一项发送有效时间信息。
第五方面，本申请提供一种配置方法，该方法包括：源接入网设备接收来自目标接入网设备的有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；源接入网设备根据有效时间信息确定释放终端设备的条件切换配置的时间。
第六方面，本申请提供一种配置方法，该方法包括：源接入网设备确定有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；源接入网设备向目标接入网设备发送有效时间信息。
通过上面的方法，源接入网设备将有效时间信息发送至目标接入网设备，使得目标接入网设备可以根据该有效时间信息及时释放CHO配置相关的资源，降低资源开销，提高目标接入网设备的DU和CU-UP性能，提升整体系统性能。
一种可能的实现方式中，源接入网设备确定有效时间信息，包括：源接入网设备根据终端设备的位置信息、目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息确定有效时间信息。
一种可能的实现方式中，该方法还包括：源接入网设备根据有效时间信息确定释放终端设备的条件切换配置的时间。
一种可能的实现方式中，小区覆盖信息包括以下至少一项：
小区半径信息；小区参考点信息；小区覆盖形状信息。
一种可能的实现方式中，目标接入网设备为卫星，星历信息包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
第七方面，本申请提供一种配置方法，该方法包括：目标接入网设备接收来自源接入网设备的有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；目标接入网设备根据有效时间信息确定释放终端设备的条件切换配置的时间。
通过上面的方法，目标接入网设备可以根据该有效时间信息及时释放CHO配置相关的资源，降低资源开销，提高目标接入网设备的DU和CU-UP性能，提升整体系统性能。
一种可能的实现方式中，目标接入网设备包括集中式单元控制面实体、集中式单元用户面实体以及分布式单元；该方法还包括：目标接入网设备的集中式单元控制面实体向目标接入网设备的集中式单元用户面实体以及分布式单元中的至少一项发送有效时间信息。
第八方面，本申请还提供一种通信装置，该通信装置具有实现上述第一方面至第七方面中任一方面提供的任一方法或任一实现方式。该通信装置可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的实现方式中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中接入网设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与终端设备或接入网设备等设备之间的通信。
在一种可能的实施方式中，通信装置的结构中包括处理单元和通信单元，这些单元可 以执行上述方法示例中相应功能，具体参见第一方面至第七方面提供的方法中的描述，此处不做赘述。
第九方面，提供了一种通信装置，包括处理器和接口电路，接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置，该处理器用于执行存储器中存储的计算机程序或指令，实现前述第一方面至第七方面中任一方面中任意可能的实现方式中的方法。可选地，该装置还包括存储器，存储器中存储计算机程序或指令。
第十方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令在计算机上运行时，使得计算机实现前述第一方面至第七方面中任一方面中任意可能的实现方式中的方法。
第十一方面，提供了一种存储有计算机可读指令的计算机程序产品，当计算机可读指令在计算机上运行时，使得计算机实现前述第一方面至第七方面中任一方面中任意可能的实现方式中的方法。
第十二方面，提供一种芯片，该芯片包括处理器，还可以包括存储器，处理器与存储器耦合，用于执行存储器中存储的计算机程序或指令，使得芯片实现前述第一方面至第七方面中任一方面中任意可能的实现方式中的方法。
第十三方面，提供一种通信系统，系统包括实现第一方面的装置(如接入网设备的DU)、实现第二方面的装置(如接入网设备的CU)以及实现第三方面的装置(如终端设备)。
第十四方面，提供一种通信系统，系统包括实现第四方面的装置(如目标接入网设备)以及实现第五方面的装置(如源接入网设备)。
第十五方面，提供一种通信系统，系统包括实现第六方面的装置(如源接入网设备)以及实现第七方面的装置(如目标接入网设备)。
附图说明
图1为适用于本申请实施例的一种网络架构示意图；
图2为本申请实施例提供的一种接入网设备结构示意图；
图3为适用于本申请实施例的一种NTN场景示意图；
图4为适用于本申请实施例的另一种NTN场景示意图；
图5为本申请实施例提供的一种配置方法流程示意图；
图6为本申请实施例提供的一种定时提前上报方法示意图；
图7为本申请实施例提供的一种定时提前上报方法示意图；
图8为本申请实施例提供的一种有效时间信息配置方法流程示意图；
图9为本申请实施例提供的一种有效时间信息配置方法流程示意图；
图10为本申请实施例提供的一种通信方法流程示意图；
图11为本申请实施例提供的一种通信装置结构示意图；
图12为本申请实施例提供的一种通信装置结构示意图。
具体实施方式
下面结合说明书附图对本申请实施例做详细描述。
本申请实施例可以应用于各种移动通信系统，例如：5G中的新无线(new radio，NR)系统、长期演进(long term evolution，LTE)系统以及未来通信系统等其它通信系统，具体的，在此不做限制。
本申请实施例中，终端设备也可以称为用户设备，为具有无线收发功能的设备或可设置于该设备的芯片。在实际应用中，本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端、增强现实(augmented reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。本申请中将前述具有无线收发功能的设备及可设置于该设备中的芯片统称为终端设备。
接入网设备也可以称之为无线接入网(radio access network，RAN)设备，可以为各种制式下无线接入设备，例如可以是NR系统中的下一代基站(next generation node B，gNB)，可以是演进型节点B(evolved Node B，eNB)等。
如图1所示，为适用于本申请实施例的一种网络架构示意图。图1中，5G核心网(core network，CN)与下一代无线接入网(next generation radio access network，NG-RAN)之间通过NG接口连接。NG-RAN中包括一个或多个gNB，gNB和gNB之间通过Xn接口连接。gNB可以采用分布式架构，包括一个或多个DU和一个CU，CU和DU之间通过F1接口连接。在实际网络部署中，DU和CU可以集中部署于同一地理位置，也可以分散部署于不同的地理位置。
本申请实施例中，CU和DU的功能切分可以按照协议栈切分，一种可能的方式，如图2所示，可以将无线资源控制(radio resource control，RRC)，服务数据适应协议(service data adaptation protocol，SDAP)以及分组数据汇聚协议(packet data convergence protocol，PDCP)层部署在CU，其余的无线链路控制(radio link control，RLC)层、介质访问控制(media access control，MAC)层以及物理层(physical,PHY)部署在DU。CU和DU之间通过F1接口连接。CU代表gNB通过NG接口和核心网连接，CU代表gNB通过Xn接口和其他gNB连接，CU还可以代表gNB通过X2口和其他eNB连接执行双连接操作。可以理解的是，上述功能的切分仅为一个示例，不构成对CU和DU的限定。也就是说，CU和DU之间还可以有其他功能切分的方式，本申请实施例在此不予赘述。
进一步的，如图2所示，CU的功能可以由一个实体来实现也可以由不同的实体实现。例如，可以对CU的功能进行进一步切分，例如，将控制面(CP)和用户面(UP)分离，即CU的控制面(CU-CP)和CU用户面(CU-UP)。例如，CU-CP和CU-UP可以由不同的功能实体来实现，所述CU-CP和CU-UP可以与DU相耦合，共同完成基站的功能。一种可能的方式中，CU-CP负责控制面功能，主要包含RRC和控制面对应的PDCP(即PDCP-C)。PDCP-C主要负责控制面数据的加解密，完整性保护，数据传输等。CU-UP负责用户面功能，主要包含SDAP和用户面对应的PDCP(即PDCP-U)。其中SDAP主要负责将核心网的数据进行处理并将数据流(flow)映射到承载。PDCP-U主要负责数据面的加解密，完整性保护，头压缩，序列号维护，数据传输等。其中CU-CP和CU-UP通过E1接口连接。CU-CP代表gNB通过Ng接口和核心网连接。通过F1-C(控制面)和DU连接。CU-UP 通过F1-U(用户面)和DU连接。当然还有一种可能的实现是PDCP-C也在CU-UP。
为便于理解本申请实施例，以接入网设备为gNB为例，图3示出了适用于本申请实施例的一种NTN场景示意图。图3中，终端设备通过NG-RAN与5G核心网(core network，CN)进行通信。NG-RAN中包括gNB，gNB由CU和DU构成。gNB的DU可以为卫星。在NTN场景下，由于CU与DU之间距离过大，CU与DU之间还可以包括NTN网关(gateway)等设备，DU与NTN网关等设备之间通过卫星无线接口(satellite radio interface，SRI)以及在此之上的F1接口传输信号，NTN网关等设备与CU之间通过F1接口传输信号。
如图4所示，为适用于本申请实施例的另一种NTN场景示意图。相对于图3，图4所示的NTN场景中，NG-RAN中包括gNB以及卫星。在该场景中，卫星可以作为中继设备，位于gNB与终端设备之间，卫星与gNB之间还可以包括NTN网关等设备。卫星将NR-Uu无线接口的信号从服务链路(在卫星和终端设备之间)重复到馈线链路(在NTN网关和卫星之间)，并将该信号通过馈线链路上的卫星无线电接口(与NR-Uu无线接口信号相同，换句话说，卫星并不终止或者改变NR-Uu无线接口信号)传输给NTN网关，NTN网关支持向gNB转发该信号，反之亦然。卫星可以对接收到的物理信号进行滤波以及放大等操作。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的是，在本申请中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的范围。上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请实施例中，接入网设备为DU和CU分离的架构时，接入网设备中的DU可以为终端设备配置TA上报配置信息，其中，TA上报配置信息可以用于调整终端设备的TA上报时机、TA上报条件以及TA上报方式，从而使得终端设备的TA上报时机、TA上报条件以及TA上报方式符合DU的调度需求，更好的提升DU的调度效率，下面将详细描述。
如图5所示，为本申请实施例提供的一种配置方法流程示意图，图5的流程可以应用于图1至图4。图5中的接入网设备可以为gNB，接入网设备的DU可以为卫星；或者，图5中的接入网设备可以为gNB，接入网设备的DU部署在地面，卫星作为终端设备与接入网设备之间的中继设备。该方法包括：
S501：接入网设备的DU确定第一配置信息。
其中，第一配置信息包括用于终端设备上报定时提前信息的配置信息。终端设备可以根据第一配置信息确定是否上报定时提前信息。当终端设备确定上报定时提前信息时，终端设备可以根据第一配置信息确定上报定时提前的时间或者时间和次数等信息。第一配置信息也可以称为TA上报配置信息等名称，本申请对第一配置信息的具体名称并不限定。
其中，终端设备上报的定时提前信息可以是终端设备确定例如计算得到的定时提前， 和/或，用于确定定时提前的相关参数或信息，所述相关参数或信息可以包括：终端设备的位置信息、DU的小区覆盖信息以及DU对应的星历信息中的一项或多项。定时提前信息还可以包括其他用于计算定时提前的参数或信息，本申请对此不做限定。例如，在卫星通信场景下，终端设备上报的定时提前信息可以为终端设备到卫星设备的上行和/或下行时延，或者，可以为“终端设备到卫星设备的上行(和/或下行)时延”与“卫星小区地面的中心位置到卫星设备的上行(和/或下行)时延”的偏差，或者为终端设备的位置信息。“终端设备到卫星设备的上行(和/或下行)时延”可以是终端设备根据终端设备的位置信息和星历信息确定的，或者上述偏差也可以是终端设备根据其到卫星小区地面的中心位置确定的。
第一配置信息可以包括多种信息，例如，第一配置信息可以包括以下至少一项：
定时提前偏移(offset)门限值，用于终端设备确定其最新的定时提前和上一次成功上报的定时提前之间的差值的绝对值是否高于该定时提前偏移门限值。比如，如果终端设备确定其最新的定时提前和上一次上报的定时提前之间的差值的绝对值高于该定时提前偏移门限值，终端设备确定上报最新的定时提前信息。
定时提前信息上报类型，可以用于指示终端设备是通过RRC消息上报定时提前信息，还是通过MAC控制元素(control element，CE)上报定时提前信息。可选的，当上报类型为“RRC消息”时，终端设备的定时提前信息可以为终端设备的位置信息。CU根据终端设备的位置信息确定终端设备的定时提前并发给DU，或者CU向DU发送终端设备的位置信息，由DU确定终端设备的定时提前。
定时提前信息的随机接入上报指示信息，定时提前信息的随机接入上报指示信息可以用于指示终端设备是否在随机接入过程中上报定时提前信息。比如，源网络设备切换终端设备到目标DU或目标基站下的目标小区，根据该信息，终端设备可以确定是否在随机接入过程中向目标DU或者目标基站上报定时提前信息。
定时提前信息上报的时间信息，可以用于指示终端设备上报定时提前信息的时间；一种实现方式中，该时间信息包括一个或多个时间点，终端设备可以在该时间信息指示的时间点上报定时提前信息；另一种实现方式中，该时间信息可以包括上报定时提前信息的周期，终端设备可以按照该周期，周期性地上报定时提前信息。
定时提前信息上报的次数，可以用于指示终端设备上报定时提前信息的最大次数。
以上只是示例，第一配置信息还可以包括其他内容，本申请对此并不限定。
接入网设备的DU具体如何确定第一配置信息，本申请并不限定。例如，DU可以根据终端设备的位置信息，确定终端设备与DU之间的距离。DU可以根据终端设备与DU之间的距离确定第一配置信息中的定时提前偏移门限值、定时提前信息的上报类型以及时间信息等。针对与DU的距离不同的终端设备，DU可以设置不同的定时提前偏移门限值、定时提前信息的上报类型以及时间信息，从而优化系统性能，实现为不同终端设备配置不同的第一配置信息。
本申请实施例中，接入网设备的DU可以通过接入网设备的CU向终端设备发送第一配置信息，具体过程可以如下：
S502：DU向CU发送第一配置信息。
可以理解的，DU和CU属于同一个接入网设备。上述第一配置信息可以通过一条消息发送给CU，也可以通过多条消息发送给CU。
举例来说，DU可以通过UE上下文建立响应(UE CONTEXT SETUP RESPONSE)消 息或UE上下文修改响应(UE CONTEXT MODIFICATION RESPONSE)消息或UE上下文修改需求(UE CONTEXT MODIFICATION REQUIRED)消息发送第一配置信息。具体的，第一配置信息可以通过上述消息中的DU to CU RRC信息(DU to CU RRC Information)信元携带。以上只是示例，DU还可以通过其他消息发送第一配置信息，本申请对此并不限定。
一种实现方式中，S502之前，CU可以向DU发送第一消息，第一消息用于请求所述第一配置信息。DU接收到第一消息之后，向CU发送第一配置信息。
另一种实现方式中，S502之前，CU可以向DU发送第二消息，第二消息包括第二配置信息，第二配置信息为CU为终端设备配置的用于上报定时提前信息的配置信息。可选地，DU接收到第二消息之后，向CU发送第三消息。第三消息包括反馈信息和/或第一配置信息，其中，反馈信息用于指示DU已经接收到第二配置信息，第一配置信息为对第二配置信息更新后的信息。在一个示例中，DU可以不用反馈第一配置信息，此时，第三消息可以仅包括反馈信息，表示DU已经接收到第二配置信息，且DU可以不将第二配置信息更新为第一配置信息，而是根据第二配置信息确定终端设备如何上报定时提前信息，也就是说，最终用于确定终端设备上报定时提前信息的配置信息是由CU决策的，可以理解，CU也可以更新该配置信息。
可选地，DU向CU发送的第一配置信息包含第二配置信息中包含的所有项目，且其中部分或全部项目被DU更新。可选地，DU向CU发送的第一配置信息中包含第二配置信息中被DU更新的部分项目，由CU将第二配置信息中的这部分项目替换为更新后的值，CU还可以通知DU已经替换了第二配置信息中的部分项目。
通过上面的方法，DU和CU之间形成了一种协商机制，能够使DU更精确地确定定时提前的配置信息，能够加强DU和CU之间的配合，从而提高系统稳定性。
S503：CU向终端设备发送第一配置信息。
CU可以通过RRC消息发送第一配置信息，也可以通过系统消息发送第一配置信息，本申请对此并不限定。
S504：终端设备根据第一配置信息向DU上报第一定时提前信息。
其中，第一定时提前信息是根据第一配置信息发送的，即终端设备根据第一配置信息确定是否发送第一定时提前信息，若确定发送第一定时提前信息，向DU上报第一定时提前信息。终端设备可以直接向DU上报第一定时提前信息，也可以通过CU向DU上报第一定时提前信息。另外，本申请实施例中，第一定时提前信息也可以称为用户设备专用(UE specific)定时提前。
举例来说，第一配置信息包括定时提前偏移门限值、定时提前信息上报类型、定时提前信息上报的时间信息以及定时提前信息上报的次数。以定时提前信息上报类型为“MAC CE”进行示例，终端设备确定定时提前之后，如果终端设备确定的定时提前与终端设备上一次成功上报的定时提前之间的差值的绝对值大于或等于定时提前偏移门限值，且确定已经上报定时提前信息的次数小于第一配置信息指示的次数，则可以通过MAC CE向DU上报第一定时提前信息。这里只是以第一定时提前与终端设备上一次成功上报的定时提前的差值进行举例说明，不代表一定是第一定时提前与终端设备上一次成功上报的定时提前的差值，还可以是第一定时提前与任意一次成功上报的定时提前的差值，下面具有相似描述的地方，不做赘述。
再举例来说，第一配置信息包括定时提前偏移门限值和定时提前信息上报类型，定时提前信息上报类型指示通过RRC消息上报定时提前信息。终端设备确定定时提前之后，如果终端设备确定的定时提前与终端设备上一次成功上报的定时提前之间的差值的绝对值大于或等于定时提前偏移门限值，则可以通过RRC消息向CU上报第一定时提前信息，再由CU将第一定时提前信息转发至DU。可选的，终端设备可以不上报确定的定时提前，而是通过RRC消息向CU上报终端设备的位置信息，即第一定时提前信息包括终端设备的位置信息。CU将位置信息转发至DU，由DU自己计算定时提前，或者由CU计算定时提前，再将定时提前转发至DU。
需要说明的是，虽然上述实施方式中，终端设备确定了定时提前且以该定时提前用于判断是否上报第一定时提前信息，但终端设备最终上报的第一定时提前信息中可以不包含该定时提前。
通过上面的方法，由于定时提前偏移门限值可以用于触发终端设备上报定时提前信息，DU通过在第一配置信息中配置定时提前偏移门限值，可以控制终端设备上报定时提前信息的上报时机。进一步的，由于终端设备上报定时提前信息时机与DU的调度时机相关，DU通过控制终端设备上报定时提前信息的上报时机，可以提高DU的调度效率和性能。
再举例来说，第一配置信息包括的定时提前信息随机接入上报指示信息用于指示在随机接入过程中上报专用定时提前信息，终端设备则可以在随机接入过程中上报第一定时提前。在该实现方式中，不需要考虑第一定时提前与上一次上报的定时提前之间的差值的绝对值是否大于或等于定时提前偏移门限值。
一种可能的实现方式中，DU获取第一定时提前信息之后，DU可以根据终端设备上报的第一定时提前信息，更新第一配置信息，并将更新后的第一配置信息通过CU转发至终端设备。
通过实施上面的方法，DU可以根据自身情况，为终端设备配置第一配置信息，并通过CU发送至终端设备，DU通过为终端设备配置第一配置信息，实现控制终端设备上报定时提前信息的时机，从而使得终端设备的定时提前信息上报时机符合DU的调度需求，提升DU的调度效率，提高整体小区的性能。
本申请实施例中，终端设备根据第一配置信息确定上报第一定时提前信息之前，还可以先计算第一定时提前，该第一定时提前可以包含在第一定时提前信息中。终端设备可以根据第一信息和第二信息中的至少一项计算第一定时提前，第一信息可以为DU的小区覆盖信息，第二信息可以为DU对应的星历信息。
一种可能的实现方式中，终端设备计算定时提前所需的信息可以由DU提供；另一种可能的实现方式中，也可以由CU提供计算定时提前所需的信息，例如CU提供预先存储的小区覆盖信息以及星历信息等信息。
本申请实施例中，由DU提供上述信息时，下面详细描述终端设备计算定时提前所需的信息在CU与DU之间的交互机制。需要说明的是，图6所示的流程和图5所示的流程，可以分别单独实现，也可以结合在一起实现，本申请实施例对此并不限定。
如图6所示，为本申请实施例提供的一种定时提前上报方法流程示意图，图6的流程应用于图1至图4时，图6中的接入网设备可以为其中的gNB，接入网设备的DU可以为卫星，该方法中，接入网设备的DU通过接入网设备的CU向终端设备发送第一信息和第二信息中的至少一项，具体的，该方法包括：
可选的，S600：接入网设备的CU向接入网设备的DU发送请求消息，该请求消息用于请求DU发送第一信息和第二信息中的至少一项。
S601：接入网设备的DU向CU发送第一信息和第二信息中的至少一项。
S602：接入网设备的CU向终端设备发送第一信息和第二信息中的至少一项。
可以理解的，如果终端设备接收第一信息和第二信息，DU可以通过一条消息将第一信息和第二信息发送给CU，也可以通过多条消息将第一信息和第二信息分别发送给CU。类似的，CU可以通过一条消息将第一信息和第二信息发送给终端设备，也可以通过多条消息将第一信息和第二信息分别发送给终端设备。类似的，如果第一信息或第二信息分别包含多个项目，第一信息或第二信息中的多个项目可以通过一条消息发送给CU或终端，也可以分别通过多条消息分别发送给CU或者终端，不做赘述。
本申请实施例中，第一信息可以为DU的小区覆盖信息，第二信息可以为DU对应的星历信息。其中，DU对应的星历信息可以分两种情况，第一种情况，接入网设备的DU为卫星时，该星历信息就是指DU的星历信息；第二种情况，接入网设备的DU不为卫星，且卫星是中继设备时，该星历信息就是指DU对应的中继设备的星历信息。其中，卫星作为中继设备时，DU通过NTN网关与卫星连接，在该情况下，该卫星即为DU对应的中继设备。
举例来说，第一信息，即DU的小区覆盖信息，可以由DU通过第一请求消息发送至CU。第一请求消息的具体名称并不限定，例如第一请求消息可以为F1建立请求(SETUP REQUEST)消息或gNB-DU配置更新(GNB-DU CONFIGURATION UPDATE)消息。可选的，第一信息可以由第一消息中的服务小区信息(Served Cell Information)信元携带。
举例来说，第二信息，DU对应的星历信息，可以由DU通过第二请求消息发送至CU。第二请求消息的具体名称并不限定，例如第二请求消息可以为F1SETUP REQUEST消息或GNB-DU CONFIGURATION UPDATE消息。
本申请实施例中，第一信息可以包括以下至少一项：
小区半径信息，用于指示小区的半径；小区参考点信息；小区覆盖形状信息，用于指示小区的形状，例如小区的形状可以为圆形或六边形。这些信息都可以称为DU的小区覆盖信息。
其中，小区参考点信息为小区内的一个参考点的地理位置信息，该参考点的位置包括但是不限于小区的中心位置。
举例来说，通过比较终端设备的位置与该参考点的距离，终端设备能够判断自己是否应该启动小区重选测量。当距离参考点较近时，说明终端设备离小区边缘较远，可以不启动小区重选测量，节约电量。
再举例来说，终端设备在小区边缘进行小区重选时，可以根据其他小区的参考点信息，确认自己与其它小区的距离，并优选候选小区，从而提高重选成功率和系统性能。例如，该距离小于阈值的小区确认为候选小区，其中阈值可以由网络侧配置，也可以由终端设备确定，还可以是预设的。
第二信息可以包括以下至少一项：
卫星位置信息，用于指示卫星位置；卫星速度状态矢量(velocity state vectors)信息，用于指示卫星的速度和运动方向；卫星轨道要素(orbital elements)信息，用于指示卫星的轨道参数，例如轨道参数包括但不限于轨道形状、维度以及周期等信息。这些信息都可以 称为DU对应的星历信息。
S603：终端设备根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第一定时提前。其中，所述第一定时提前可以包含在前述图5所示的流程中的第一定时提前信息中，关于第一定时提前信息具体可以参考前面的描述。
终端设备具体如何确定第一定时提前，本申请实施例对此并不限定。一种可能的实现方式中，终端设备可以根据终端设备的位置信息以及卫星位置信息，确定终端设备与卫星之间的距离D 1。终端设备根据D 1确定的第一定时提前可以满足以下形式：
TA＝2×D 1/c·····(1)
其中，TA表示第一定时提前，c表示光速。
以上只是示例，还可以通过其他方式确定定时提前，在此不再逐一举例说明。
再举例来说，终端根据第一信息中小区参考点信息以及自身的位置信息，可以确定终端设备在小区中的位置，进而确定终端设备的位置与该参考点的距离。例如当终端设备的位置与该参考点的距离小于距离阈值时，终端设备可以根据公式(1)确定第一定时提前；终端设备的位置与该参考点的距离大于或等于距离阈值时，终端设备可以不确定第一定时提前，从而可以节约电量。其中，距离阈值可以是接入网设备为终端设备配置的，也可以是终端设备确定，还可以是预设的。
一种可能的实现方式中，终端设备确定第一定时提前之后，也可以不将第一定时提前发送至DU或CU，而是终端设备自身使用，例如用于同步过程。终端设备具体是否发送第一定时提前，可以根据实际情况确定，本申请实施例对此并不限定。举例来说，终端设备可以根据前述图5所示实施例中描述的第一配置信息中的一些项目确定是否上报第一定时提前。当终端设备确定上报第一定时提前时，终端设备还可以根据第一配置信息中的另一些项目确定上报第一定时提前的时间等信息。
采用上述的方法，来自DU的第一信息以及第二信息用于终端设备确定定时提前信息，从而使得终端设备能够及时得到TA，用于与接入网设备之间进行同步。
本申请实施例中，终端设备确定第一定时提前之后，还可以向DU发送第一定时提前信息，即执行S604：
S604：终端设备向DU发送第一定时提前。
可以理解的是，终端设备具体如何向DU发送第一定时提前，本申请实施例并不限定。终端设备可以直接向DU发送第一定时提前，也可以通过CU向DU发送第一定时提前。
假设终端设备通过图5所示的流程获得第一配置信息，终端设备可以根据第一配置信息确定是否向DU发送包含第一定时提前的第一定时提前信息，例如若第一定时提前与终端设备上一次成功上报的定时提前之间的差值的绝对值大于或等于第一配置信息中的定时提前偏移门限值，终端设备可以向DU发送第一定时提前信息。具体可以参考图5所示的流程中的描述，在此不再赘述。
本申请实施例中，还可以由CU确定定时提前(该定时提前称为第二定时提前)，并转发至DU，或者DU自主确定定时提前(该定时提前称为第三定时提前)。从而，不仅终端设备可以计算定时提前，CU或者DU也可以计算定时提前，增加系统可靠性。例如，当终端设备计算的定时提前未成功上报，例如无法上报或者无法被DU接收时，或者当终端设备无法计算定时提前时，可以由CU或者DU来计算定时提前。
如果由CU确定第二定时提前，并将第二定时提前转发至DU，那么CU可以根据第一 信息和第二信息中的至少一项，以及终端设备的位置信息确定第二定时提前，具体过程与上述终端设备确定第一定时提前的过程类似，不再赘述。
如果DU自主确定第三定时提前，那么如图7所示，可以包括以下步骤：
可选的，S701：CU向终端设备发送位置请求消息。
该位置请求消息用于请求终端设备的位置信息。
一种可能的实现方式中，定时提前信息上报配置信息(例如前述第一配置信息)中的定时提前信息上报类型为“RRC消息”，终端设备可能因计算得到的第一定时提前与上一次成功上报的定时提前之间的差值的绝对值大于或等于第一配置信息中的定时提前偏移门限值，而触发终端设备上报位置信息。需要说明的是，当定时提前上报类型指示为“RRC消息”时，终端设备上报计算得到的第一定时提前还是上报位置信息，在此并不限定，可以是接入网设备配置的，也可以是终端设备配置的。
S702：终端设备向CU发送终端设备的位置信息。
S703：CU向DU发送终端设备的位置信息。
举例来说，CU可以通过UE上下文建立请求(UE CONTEXT SETUP REQUEST)消息或UE上下文修改请求(UE CONTEXT MODIFICATION REQUEST)消息发送位置信息。以上只是示例，CU还可以通过其他消息发送位置信息，本申请对此并不限定。
S704：DU根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第三定时提前。
其中DU确定第三定时提前的具体过程，本申请对此并不限定，可以参考上述终端设备确定第一定时提前的过程，也可以采用其他方法实现，在此不再赘述。
一种可能的实现方式中，DU还可以根据终端设备的位置信息，为终端设备确定第一配置信息。
可以理解的，图6所示的流程和图7所示的流程，可以分别单独实现，也可以结合在一起实现，本申请实施例对此并不限定。可以理解，当图6所示的流程与图7所示的流程结合，终端设备与CU或DU分别计算定时提前的过程仍是各自独立的，且本申请对CU或DU计算定时提前与终端设备计算定时提前的先后顺序不做任何限定。无论终端设备是否计算定时提前，DU都可以执行例如步骤S701-S704，完成定时提前的计算。在一个实施方式中，DU在收到CU发送第一信息和/或第二信息后即启动对定时提前的计算。在一个实施方式中，终端设备执行例如S504向DU上报第一定时提前信息，且第一定时提前信息未包含定时提前，说明终端未计算定时提前或者即使计算了定时提前也不向DU上报，DU可以在收到第一定时提前信息后，启动对定时提前的计算。在一个实施方式中，终端设备执行例如S604向DU上报定时提前，但未成功上报，则DU可以在未收到终端设备上报的定时提前达到预设时长后，启动对定时提前的计算，例如执行步骤S704。可选地，DU设置一个定时器，用于确定未收到定时提前的时长。
举例来说，结合图5至图7所示的流程，图8为本申请实施例提供的一种通信方法流程示意图。图8中的步骤的具体内容，可以参考图5至图7中的描述，在此不再赘述。
S801：DU向CU发送第一配置信息。
S802：CU向终端设备发送第一配置信息。
S803：DU向CU发送第一信息和第二信息中的至少一项。
S804：CU向终端设备发送第一信息和第二信息中的至少一项。
S805：终端设备向CU发送终端设备的位置信息。
S806：CU向DU发送终端设备的位置信息。
其中，S801至S806的顺序只是示例，不代表对其进行限制，例如，S801和S803可以同时执行，也可以按照其他顺序执行，本申请对此并不限定。
S807：终端设备根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第一定时提前。
S808：终端设备根据第一配置信息向DU上报包含所述第一定时提前的第一定时提前信息。
如果DU未收到第一定时提前信息，或者终端设备没有发送第一定时提前信息，还可以执行S809或者S810。
S809：DU根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第三定时提前。
或者，S810：CU向DU发送第二定时提前。
其中，第二定时提前是CU根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定的。
以上只是示例，图5至图7所示的流程还可以采用其他方式进行结合，在此不再逐一举例说明。
本申请实施例中，在终端设备从源接入网设备条件切换(conditional handover，CHO)到目标接入网设备时，还提供一种方法，用以实现源接入网设备和目标接入网设备之间交互CHO配置的有效时间信息。其中，CHO配置可以包括CHO候选小区配置信息以及触发条件，有效时间信息可以为一种触发条件。
如图9所示，为本申请实施例提供的一种有效时间信息配置方法流程示意图，图9的流程应用于图1至图4时，图9中的源接入网设备和目标接入网设备可以为gNB，具体的，源接入网设备可以为CU和DU分离的gNB，也可以为CU和DU不分离的gNB，源接入网设备的部分或全部功能由卫星执行，例如源接入网设备作为一个整体可以为卫星或者源接入网设备的DU可以为卫星，源接入网设备也可以为部署在地面的gNB；目标接入网设备可以为CU和DU分离的gNB，也可以为CU和DU不分离的gNB，目标接入网设备的部分或全部功能由卫星执行，例如目标接入网设备作为一个整体可以为卫星或者目标接入网设备的DU可以为卫星，目标接入网设备也可以为部署在地面的gNB，该方法包括：
S901：目标接入网设备确定有效时间信息。
有效时间信息可以指示终端设备的CHO配置的有效时间，有效时间信息可以包括起始时间、结束时间以及有效时长中的至少两种。比如，一种可能的有效时间信息的实现方式为[T1,T2]，其中T1表示起始时间，终端设备可以最早在T1时间条件切换到目标接入网设备；T2表示结束时间，终端设备可以最晚在T2时间条件切换到目标接入网设备。即终端设备只在[T1,T2]时间段内进行CHO。对于目标接入网设备而言，在这段时间之后，可以释放为终端设备准备的CHO配置，或者让不同的终端设备在不同的有效时间共享CHO配置。目标接入网设备释放资源的时间并不一定规定为T2，在T2之后的任意时间都可以作为释放资源的时间，具体由目标接入网设备根据实际情况确定。
目标接入网设备为分布式架构时，可以由目标接入网设备的CU或者CU-CP确定有效时间信息。目标接入网设备具体如何确定有效时间信息，本申请实施例并不限定。举例来 说，目标接入网设备可以根据终端设备的位置信息、目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息确定有效时间信息。其中，小区覆盖信息可以包括以下至少一项：
小区半径信息；小区参考点信息；小区覆盖形状信息。
星历信息可以包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
具体的，目标接入网设备根据目标接入网设备的小区覆盖信息中的小区半径信息，和星历信息中的卫星位置信息、卫星速度状态矢量信息，以及终端设备的位置信息，可以计算出终端设备首次移动到目标接入网设备的小区边缘的时间，从而可以将该时间作为T1。再根据终端设备的位置信息，卫星速度状态矢量信息，以及小区覆盖信息中的小区半径信息，计算出终端设备轨迹和终端设备位于目标接入网设备的小区内的持续时间deltaT，从而可以确定T2＝T1+deltaT。
一种实现方式中，目标接入网设备为分布式架构时，目标接入网设备的CU或者CU-CP可以接收来自目标接入网设备的DU对应的星历信息、小区覆盖信息，以及接收来自源接入网设备的终端设备的位置信息。其中，DU对应的星历信息可以分两种情况，第一种情况，接入网设备的DU为卫星时，该星历信息就是指DU的星历信息；第二种情况，接入网设备的DU不为卫星，且卫星是中继时，该星历信息就是指DU对应的中继的星历信息。
一种可能的实现方式中，目标接入网设备的CU或者CU-CP可以确定有效时间信息。另一种可能的实现方式中，目标接入网设备的CU或者CU-CP将终端设备的位置信息发送至目标接入网设备的DU，由目标接入网设备的DU确定有效时间信息，然后再将此有效时间信息发送回CU或者CU-CP。
S902：目标接入网设备向源接入网设备发送有效时间信息。
目标接入网设备为分布式架构时，可以由目标接入网设备的CU或者CU-CP向源接入网设备发送有效时间信息。目标接入网设备具体可以通过第一切换消息发送该有效时间信息。第一切换消息的具体名称本申请并不限定，例如，该有效时间信息可以通过切换请求确认(HANDOVER REQUEST ACKNOWLEDGE)消息发送。
源接入网设备可以根据该有效时间信息确定释放终端设备的条件切换配置的时间。比如当时间超过或等于有效时间信息指示的结束时间，源接入网设备可以释放终端设备对应的CHO配置，从而可以节约接入网设备的资源，提高系统性能。
目标接入网设备为分布式架构时，还可以存在以下流程：
S903：目标接入网设备的CU或CU-CP向目标接入网设备的DU发送有效时间信息。
举例来说，当CU向DU发送有效时间信息时，可以通过UE竞争建立请求(UE CONTEST SETUP REQUEST)或UE上下文修改请求(UE CONTEXT MODIFICATION REQUEST)消息发送有效时间信息。当然，还可以通过其他消息发送有效时间信息，本申请并不限定。
S904：目标接入网设备的CU或CU-CP向目标接入网设备的CU-UP发送有效时间信息。
举例来说，当CU-CP向CU-UP发送有效时间信息，可以通过承载上下文建立请求(BEARER CONTEXT SETUP REQUEST)消息发送有效时间信息。当然，还可以通过其他消息发送有效时间信息，本申请并不限定。
S903和S904的执行顺序并不限定，以上只是举例，并不代表对其执行顺序进行限定。
目标接入网设备的DU或CU-UP可以根据该有效时间信息确定释放终端设备的CHO配置的时间。
通过上面的方法，目标接入网设备自主确定CHO配置的有效时间，可以实现自主控制CHO配置相关的资源的释放时间，实现资源的高效利用。进一步的，目标接入网设备的DU或CU-UP可以根据该有效时间信息及时释放CHO配置相关的资源，降低资源开销，提高DU和CU-UP性能，提升整体系统性能。
本申请实施例中，还可以由源接入网设备确定有效时间信息，如图10所示，为本申请实施例提供的一种有效时间信息配置方法流程示意图，该方法包括：
S1001：源接入网设备确定有效时间信息。
源接入网设备可以根据终端设备的位置信息、目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息确定有效时间信息。具体如何确定有效时间信息，可以参考前面S901中目标接入网设备确定有效时间信息的描述，在此不再赘述。
其中，目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息可以来自目标接入网设备，终端设备的位置信息可以来自终端设备。
源接入网设备确定有效时间信息之后，可以根据该有效时间信息确定释放所述终端设备的条件切换配置的时间。
S1002：源接入网设备向目标接入网设备发送有效时间信息。
源接入网设备具体可以通过第二切换消息发送该有效时间信息。第二切换消息的具体名称本申请并不限定，例如，该有效时间信息可以通过切换请求(HANDOVER REQUEST)消息发送。具体的，该有效时间信息可以通过切换请求中的条件切换信息请求(Conditional Handover Information Request)信元携带。
目标接入网设备为分布式架构时，目标接入网设备的CU或CU-CP可以接收来自源接入网设备的有效时间信息。
目标接入网设备为分布式架构时，还可以存在以下流程：
S1003：目标接入网设备的CU或CU-CP向目标接入网设备的DU发送有效时间信息。
S1004：目标接入网设备的CU或CU-CP向目标接入网设备的CU-UP发送有效时间信息。
S1003和S1004的执行顺序并不限定，以上只是举例，并不代表对其执行顺序进行限定。
目标接入网设备的DU或CU-UP可以根据该有效时间信息确定释放终端设备的CHO配置的时间。
通过图9以及图10所示的方法，目标接入网设备的DU或CU-UP可以根据该有效时间信息及时释放CHO配置相关的资源，降低资源开销，提高DU和CU-UP性能，提升整体系统性能。
为了实现上述本申请实施例提供的方法中的各功能，接入网设备、终端设备或上述通信装置可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可 以有另外的划分方式。另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
与上述构思相同，如图11所示，本申请实施例还提供一种通信装置1100。通信装置1100可以用于实现上述方法实施例中对应于接入网设备或终端设备的方法，具体的功能可以参见上述方法实施例中的说明。
具体的，通信装置1100可以包括：处理单元1101和通信单元1102。本申请实施例中，通信单元也可以称为收发单元，可以包括发送单元和/或接收单元，分别用于执行上文方法实施例中接入网设备或终端设备发送和接收的步骤。通信单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将通信单元1102中用于实现接收功能的器件视为接收单元，将通信单元1102中用于实现发送功能的器件视为发送单元，即通信单元1102包括接收单元和发送单元。通信单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
以下，结合图11至图12详细说明本申请实施例提供的通信装置。
一些可能的实施方式中，上述图5所示的方法实施例中接入网设备的DU的行为和功能通过通信装置1100来实现时：
处理单元，用于确定第一配置信息，第一配置信息包括用于终端设备上报定时提前信息的配置信息；
通信单元，用于CU向终端设备发送第一配置信息。具体地，通信单元可以用于向CU发送第一配置信息，从而使得CU向终端发送该第一配置信息。
一种可能的实现方式中，第一配置信息包括以下至少一项：
定时提前偏移门限值；定时提前信息上报类型；定时提前信息的随机接入上报指示信息；定时提前信息上报的时间信息；定时提前信息上报的次数。一种可能的实现方式中，通信单元还用于：接收来自CU的第一消息，第一消息用于请求第一配置信息。
一种可能的实现方式中，通信单元还用于：接收来自CU的第二消息，第二消息包括第二配置信息，第二配置信息为CU为终端设备配置的用于上报定时提前信息的配置信息；其中，第一配置信息为对第二配置信息更新后的信息。
一种可能的实现方式中，通信单元还用于：接收来自终端设备的第一定时提前信息，第一定时提前信息是根据第一配置信息发送的。
一种可能的实现方式中，通信单元还用于：通过CU向终端设备发送第一信息和第二信息中的至少一项；其中，第一信息为分布式单元的小区覆盖信息，第二信息为分布式单元对应的星历信息。
一种可能的实现方式中，通信单元还用于：接收来自CU的第二定时提前，第二定时提前为CU根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定的。
一种可能的实现方式中，通信单元还用于：接收来自CU的终端设备的位置信息；分布式单元根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第三定时提前；其中，第一信息为分布式单元的小区覆盖信息，第二信息为分布式单元对应的星历信息。
一种可能的实现方式中，第一信息包括以下至少一项：
小区半径信息；小区参考点信息；小区覆盖形状信息。
一种可能的实现方式中，第二信息包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
一些可能的实施方式中，上述图5所示的方法实施例中接入网设备的CU的行为和功能通过通信装置1100来实现时：
处理单元，用于通过通信单元接收来自接入网设备的DU的第一配置信息，第一配置信息包括用于终端设备上报定时提前信息的配置信息；
处理单元，用于通过通信单元向终端设备发送第一配置信息。
一种可能的实现方式中，第一配置信息包括以下至少一项：
定时提前偏移门限值；定时提前信息上报类型；定时提前信息的随机接入上报指示信息；定时提前信息上报的时间信息；定时提前信息上报的次数。一种可能的实现方式中，通信单元还用于：向DU发送第一消息，第一消息用于请求第一配置信息。
一种可能的实现方式中，通信单元还用于：向DU发送第三消息，第三消息包括第二配置信息，第二配置信息为集中式单元为终端设备配置的用于上报定时提前信息的配置信息；其中，第一配置信息为对第二配置信息更新后的信息。
一种可能的实现方式中，通信单元还用于：接收来自DU的第一信息和第二信息中的至少一项；集中式单元向终端设备发送第一信息和第二信息中的至少一项；其中，第一信息为DU的小区覆盖信息，第二信息为DU对应的星历信息。
一种可能的实现方式中，处理单元还用于：根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第二定时提前；
通信单元还用于：向DU发送第二定时提前。
一种可能的实现方式中，通信单元还用于：获取终端设备的位置信息；集中式单元向DU发送位置信息。
一种可能的实现方式中，第一信息包括以下至少一项：小区半径信息；小区参考点信息；小区覆盖形状信息。
一种可能的实现方式中，第二信息包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
一些可能的实施方式中，上述图5所示的方法实施例中终端设备的行为和功能通过通信装置1100来实现时：
通信单元，用于接收来自接入网设备的CU的第一配置信息，第一配置信息包括用于终端设备上报定时提前信息的配置信息，第一配置信息由接入网设备的DU配置；
处理单元，用于根据第一配置信息向DU上报第一定时提前信息。
一种可能的实现方式中，第一配置信息包括以下至少一项：
定时提前偏移门限值；定时提前信息上报类型；定时提前信息的随机接入上报指示信息；定时提前信息上报的时间信息；定时提前信息上报的次数。一种可能的实现方式中，通信单元还用于：通过CU接收来自DU的第一信息和第二信息中的至少一项；其中，第一信息为DU的小区覆盖信息，第二信息为DU对应的星历信息。
一种可能的实现方式中，第一配置信息包括定时提前偏移门限值；
处理单元还用于确定定时提前，以及，若确定的定时提前与上一次成功上报的定时提前之间的差值的绝对值大于或等于定时提前偏移门限值，处理单元根据第一配置信息通过 通信单元向接入网设备的DU上报第一定时提前信息。
一种可能的实现方式中，处理单元还用于：根据第一信息和第二信息中的至少一项，以及终端设备的位置信息确定第一定时提前；其中，第一信息为接入网设备的DU的小区覆盖信息，第二信息为接入网设备的DU对应的星历信息。
一些可能的实施方式中，上述图9所示的方法实施例中目标接入网设备的行为和功能通过通信装置1100来实现时：
处理单元，用于确定有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；
通信单元，用于向源接入网设备发送有效时间信息。
一种可能的实现方式中，处理单元具体用于：
根据终端设备的位置信息、目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息确定有效时间信息。
一种可能的实现方式中，处理单元还用于：根据有效时间信息确定释放终端设备的条件切换配置的时间。
一种可能的实现方式中，目标接入网设备包括集中式单元控制面实体、集中式单元用户面实体以及分布式单元；通信单元还用于：向目标接入网设备的集中式单元用户面实体以及分布式单元中的至少一项发送有效时间信息。
一些可能的实施方式中，上述图9所示的方法实施例中源接入网设备的行为和功能通过通信装置1100来实现时：
通信单元，用于接收来自目标接入网设备的有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；
处理单元，用于根据有效时间信息确定释放终端设备的条件切换配置的时间。
一些可能的实施方式中，上述图10所示的方法实施例中源接入网设备的行为和功能通过通信装置1100来实现时：
处理单元，用于确定有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；
通信单元，用于向目标接入网设备发送有效时间信息。
一种可能的实现方式中，处理单元确定有效时间信息，包括：根据终端设备的位置信息、目标接入网设备的小区覆盖信息以及目标接入网设备对应的星历信息确定有效时间信息。
一种可能的实现方式中，处理单元还用于：根据有效时间信息确定释放终端设备的条件切换配置的时间。
一种可能的实现方式中，小区覆盖信息包括以下至少一项：
小区半径信息；小区参考点信息；小区覆盖形状信息。
一种可能的实现方式中，目标接入网设备为卫星，星历信息包括以下至少一项：
卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
一些可能的实施方式中，上述图10所示的方法实施例中目标接入网设备的行为和功能通过通信装置1100来实现时：
通信单元，用于接收来自源接入网设备的有效时间信息，有效时间信息指示终端设备的条件切换配置的有效时间；
处理单元，用于根据有效时间信息确定释放终端设备的条件切换配置的时间。
一种可能的实现方式中，目标接入网设备包括集中式单元控制面实体、集中式单元用户面实体以及分布式单元；通信单元还用于：向目标接入网设备的集中式单元用户面实体以及分布式单元中的至少一项发送有效时间信息。
以上只是示例，处理单元1101和通信单元1102还可以执行其他功能，更详细的描述可以参考图5至图10所示的方法实施例中相关描述，这里不加赘述。
本申请还提供一种包含集中式单元以及分布式单元的接入网设备，该接入网设备可以是基站，其中，集中式单元可以执行如图5-图10所示的方法实施例中所述的CU的功能；分布式单元可以执行如图5-图10所示的方法实施例中所述的DU的功能。在一种实现方式中，集中式单元是如图11所示的装置实施例中描述的CU，分布式单元是如图11所示的装置实施例中描述的DU。
如图12所示为本申请实施例提供的通信装置1200，图12所示的装置可以为图11所示的装置的一种硬件电路的实现方式。该通信装置可适用于前面所示出的流程图中，执行上述方法实施例中终端设备或者接入网设备的功能。为了便于说明，图12仅示出了该通信装置的主要部件。
如图12所示，通信装置1200包括处理器1210和接口电路1220。处理器1210和接口电路1220之间相互耦合。可以理解的是，接口电路1220可以为收发器或输入输出接口。可选的，通信装置1200还可以包括存储器1230，用于存储处理器1210执行的指令或存储处理器1210运行指令所需要的输入数据或存储处理器1210运行指令后产生的数据。
当通信装置1200用于实现图5至图10所示的方法时，处理器1210用于实现上述处理单元1101的功能，接口电路1220用于实现上述通信单元1102的功能。
当上述通信装置为应用于终端设备的芯片时，该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息，该信息是接入网设备发送给终端设备的；或者，该终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息，该信息是终端设备发送给接入网设备的。
当上述通信装置为应用于接入网设备的芯片时，该接入网设备芯片实现上述方法实施例中接入网设备的功能。该接入网设备芯片从接入网设备中的其它模块(如射频模块或天线)接收信息，该信息是终端设备发送给接入网设备的；或者，该接入网设备芯片向接入网设备中的其它模块(如射频模块或天线)发送信息，该信息是接入网设备发送给终端设备的。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其它通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其它可编程逻辑器件、晶体管逻辑器件。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中存储器可以是随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存 储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备或终端设备中。处理器和存储介质也可以作为分立组件存在于接入网设备或终端设备中。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
应理解，在本发明实施例中，“与A对应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本申请实施例中出现的“多个”是指两个或两个以上。
本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对描述的对象个数的特别限定，不能构成对本申请实施例的任何限制。
本申请实施例中出现的“传输”(transmit/transmission)如无特别说明，是指双向传输，包含发送和/或接收的动作。具体地，本申请实施例中的“传输”包含数据的发送，数据的接收，或者数据的发送和数据的接收。或者说，这里的数据传输包括上行和/或下行数据传输。数据可以包括信息和/或信号，上行数据传输即上行信息和/或上行信号传输，下行数据传输即下行信息和/或下行信号传输。
本申请的各个实施例中的内容可以相互参考，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的，本申请实施例中，终端设备和/或接入网设备可以执行本申请实施例中的部分或全部步骤，这些步骤或操作仅是示例，本申请实施例中，还可以执行其它操作或者各种操作的变形。此外，各个步骤可以按照本申请实施例呈现的不同的顺序来执行，并且有可能并非要执行本申请实施例中的全部操作。

Claims (54)

  1. 一种配置方法，其特征在于，包括：
    接入网设备的分布式单元确定第一配置信息，所述第一配置信息包括用于终端设备上报定时提前信息的配置信息；
    所述接入网设备的分布式单元通过所述接入网设备的集中式单元向所述终端设备发送所述第一配置信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一配置信息包括以下至少一项：
    定时提前偏移门限值；
    定时提前信息上报类型；
    定时提前信息的随机接入上报指示信息；
    定时提前信息上报的时间信息；
    定时提前信息上报的次数。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述分布式单元接收来自所述集中式单元的第一消息，所述第一消息用于请求所述第一配置信息。
  4. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述分布式单元接收来自所述集中式单元的第二消息，所述第二消息包括第二配置信息，所述第二配置信息为所述集中式单元为所述终端设备配置的用于上报定时提前信息的配置信息；
    其中，所述第一配置信息为对所述第二配置信息更新后的信息。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述方法还包括：
    所述分布式单元接收来自所述终端设备的第一定时提前信息，所述第一定时提前信息是根据所述第一配置信息发送的。
  6. 根据权利要求1至5任一所述的方法，其特征在于，所述方法还包括：
    所述分布式单元通过所述集中式单元向所述终端设备发送第一信息和第二信息中的至少一项；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述分布式单元接收来自所述集中式单元的第二定时提前，所述第二定时提前为所述集中式单元根据所述第一信息和所述第二信息中的至少一项，以及所述终端设备的位置信息确定的。
  8. 根据权利要求1至6任一所述的方法，其特征在于，所述方法还包括：
    所述分布式单元接收来自所述集中式单元的所述终端设备的位置信息；
    所述分布式单元根据第一信息和第二信息中的至少一项，以及所述终端设备的位置信息确定第三定时提前；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  9. 根据权利要求6至8任一所述的方法，其特征在于，所述第一信息包括以下至少一 项：
    小区半径信息；小区参考点信息；小区覆盖形状信息。
  10. 根据权利要求6至9任一所述的方法，其特征在于，所述第二信息包括以下至少一项：
    卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
  11. 一种配置方法，其特征在于，包括：
    接入网设备的集中式单元接收来自所述接入网设备的分布式单元的第一配置信息，所述第一配置信息包括用于终端设备上报定时提前信息的配置信息；
    所述集中式单元向所述终端设备发送所述第一配置信息。
  12. 根据权利要求11所述的方法，其特征在于，所述第一配置信息包括以下至少一项：
    定时提前偏移门限值；
    定时提前信息上报类型；
    定时提前信息的随机接入上报指示信息；
    定时提前信息上报的时间信息；
    定时提前信息上报的次数。
  13. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：
    所述集中式单元向所述分布式单元发送第一消息，所述第一消息用于请求所述第一配置信息。
  14. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：
    所述集中式单元向所述分布式单元发送第二消息，所述第二消息包括第二配置信息，所述第二配置信息为所述集中式单元为所述终端设备配置的用于上报定时提前信息的配置信息；
    其中，所述第一配置信息为对所述第二配置信息更新后的信息。
  15. 根据权利要求11至14任一所述的方法，其特征在于，所述方法还包括：
    所述集中式单元接收来自所述分布式单元的第一信息和第二信息中的至少一项；
    所述集中式单元向所述终端设备发送所述第一信息和所述第二信息中的至少一项；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    所述集中式单元根据所述第一信息和所述第二信息中的至少一项，以及所述终端设备的位置信息确定第二定时提前；
    所述集中式单元向所述分布式单元发送所述第二定时提前。
  17. 根据权利要求11至16任一所述的方法，其特征在于，所述方法还包括：
    所述集中式单元获取所述终端设备的位置信息；
    所述集中式单元向所述分布式单元发送所述位置信息。
  18. 根据权利要求15至16任一所述的方法，其特征在于，所述第一信息包括以下至少一项：
    小区半径信息；小区参考点信息；小区覆盖形状信息。
  19. 根据权利要求15至16任一所述的方法，其特征在于，所述第二信息包括以下至少一项：
    卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
  20. 一种配置方法，其特征在于，包括：
    终端设备接收来自接入网设备的集中式单元的第一配置信息，所述第一配置信息包括用于所述终端设备上报定时提前信息的配置信息，所述第一配置信息由所述接入网设备的分布式单元配置；
    所述终端设备根据所述第一配置信息向所述接入网设备的分布式单元上报第一定时提前信息。
  21. 根据权利要求20所述的方法，其特征在于，所述第一配置信息包括以下至少一项：
    定时提前偏移门限值；
    定时提前信息上报类型；
    定时提前信息的随机接入上报指示信息；
    定时提前信息上报的时间信息；
    定时提前信息上报的次数。
  22. 根据权利要求20或21所述的方法，其特征在于，所述方法还包括：
    终端设备通过所述集中式单元接收来自所述分布式单元的所述第一信息和所述第二信息中的至少一项；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  23. 根据权利要求20至22任一所述的方法，其特征在于，所述第一配置信息包括定时提前偏移门限值；
    所述终端设备根据所述第一配置信息向所述接入网设备的分布式单元上报第一定时提前信息，包括：
    若所述终端设备确定的定时提前与上一次成功上报的定时提前之间的差值的绝对值大于或等于所述定时提前偏移门限值，所述终端设备根据所述第一配置信息向所述接入网设备的分布式单元上报所述第一定时提前信息。
  24. 根据权利要求22或23所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述第一信息和所述第二信息中的至少一项，以及终端设备的位置信息确定第一定时提前。
  25. 一种通信装置，其特征在于，包括：
    处理单元，用于确定第一配置信息，所述第一配置信息包括用于终端设备上报定时提前信息的配置信息；
    通信单元，用于向所述终端设备发送所述第一配置信息。
  26. 根据权利要求25所述的装置，其特征在于，所述第一配置信息包括以下至少一项：
    定时提前偏移门限值；
    定时提前信息上报类型；
    定时提前信息的随机接入上报指示信息；
    定时提前信息上报的时间信息；
    定时提前信息上报的次数。
  27. 根据权利要求25或26所述的装置，其特征在于，所述通信单元还用于：
    接收来自集中式单元的第一消息，所述第一消息用于请求所述第一配置信息。
  28. 根据权利要求25或26所述的装置，其特征在于，所述通信单元还用于：
    接收来自集中式单元的第二消息，所述第二消息包括第二配置信息，所述第二配置信息为所述集中式单元为所述终端设备配置的用于上报定时提前信息的配置信息；
    其中，所述第一配置信息为对所述第二配置信息更新后的信息。
  29. 根据权利要求25至28任一所述的装置，其特征在于，所述通信单元还用于：
    接收来自所述终端设备的第一定时提前信息，所述第一定时提前信息是根据所述第一配置信息发送的。
  30. 根据权利要求25至29任一所述的装置，其特征在于，所述通信单元还用于：
    向所述终端设备发送第一信息和第二信息中的至少一项；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  31. 根据权利要求30所述的装置，其特征在于，所述通信单元还用于：
    接收来自所述集中式单元的第二定时提前，所述第二定时提前为所述集中式单元根据所述第一信息和所述第二信息中的至少一项，以及所述终端设备的位置信息确定的。
  32. 根据权利要求25至30任一所述的装置，其特征在于，所述通信单元还用于：
    接收来自所述集中式单元的所述终端设备的位置信息；
    根据第一信息和第二信息中的至少一项，以及所述终端设备的位置信息确定第三定时提前；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  33. 根据权利要求30至32任一所述的装置，其特征在于，所述第一信息包括以下至少一项：
    小区半径信息；小区参考点信息；小区覆盖形状信息。
  34. 根据权利要求30至33任一所述的装置，其特征在于，所述第二信息包括以下至少一项：
    卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
  35. 一种通信装置，其特征在于，包括：
    处理单元，用于通过通信单元接收来自所述接入网设备的分布式单元的第一配置信息，所述第一配置信息包括用于终端设备上报定时提前信息的配置信息；
    所述处理单元，用于通过所述通信单元向所述终端设备发送所述第一配置信息。
  36. 根据权利要求35所述的装置，其特征在于，所述第一配置信息包括以下至少一项：
    定时提前偏移门限值；
    定时提前信息上报类型；
    定时提前信息的随机接入上报指示信息；
    定时提前信息上报的时间信息；
    定时提前信息上报的次数。
  37. 根据权利要求35或36所述的装置，其特征在于，所述通信单元还用于：
    向分布式单元发送第一消息，所述第一消息用于请求所述第一配置信息。
  38. 根据权利要求35或36所述的装置，其特征在于，所述通信单元还用于：
    向分布式单元发送第二消息，所述第二消息包括第二配置信息，所述第二配置信息为 所述集中式单元为所述终端设备配置的用于上报定时提前信息的配置信息；
    其中，所述第一配置信息为对所述第二配置信息更新后的信息。
  39. 根据权利要求35至38任一所述的装置，其特征在于，所述通信单元还用于：
    接收来自分布式单元的第一信息和第二信息中的至少一项；
    向所述终端设备发送所述第一信息和所述第二信息中的至少一项；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  40. 根据权利要求39所述的装置，其特征在于，所述处理单元还用于：
    根据所述第一信息和所述第二信息中的至少一项，以及所述终端设备的位置信息确定第二定时提前；
    所述通信单元还用于向所述分布式单元发送所述第二定时提前。
  41. 根据权利要求35至40任一所述的装置，其特征在于，所述通信单元还用于：
    获取所述终端设备的位置信息；
    向所述分布式单元发送所述位置信息。
  42. 根据权利要求39至41任一所述的装置，其特征在于，所述第一信息包括以下至少一项：
    小区半径信息；小区参考点信息；小区覆盖形状信息。
  43. 根据权利要求39至42任一所述的装置，其特征在于，所述第二信息包括以下至少一项：
    卫星位置信息；卫星速度状态矢量信息；卫星轨道要素信息。
  44. 一种通信装置，其特征在于，包括：
    通信单元，用于接收来自接入网设备的集中式单元的第一配置信息，所述第一配置信息包括用于所述终端设备上报定时提前信息的配置信息，所述第一配置信息由所述接入网设备的分布式单元配置；
    处理单元，用于根据所述第一配置信息向所述接入网设备的分布式单元上报第一定时提前信息。
  45. 根据权利要求44所述的装置，其特征在于，所述第一配置信息包括以下至少一项：
    定时提前偏移门限值；
    定时提前信息上报类型；
    定时提前信息的随机接入上报指示信息；
    定时提前信息上报的时间信息；
    定时提前信息上报的次数。
  46. 根据权利要求44或45所述的装置，其特征在于，所述通信单元还用于：
    通过所述集中式单元接收来自所述分布式单元的所述第一信息和所述第二信息中的至少一项；
    其中，所述第一信息为所述分布式单元的小区覆盖信息，所述第二信息为所述分布式单元对应的星历信息。
  47. 根据权利要求44至46任一所述的装置，其特征在于，所述第一配置信息包括定时提前偏移门限值；所述处理单元具体用于：
    若确定的定时提前与上一次成功上报的定时提前之间的差值的绝对值大于或等于所 述定时提前偏移门限值，根据所述第一配置信息向所述接入网设备的分布式单元上报所述第一定时提前信息。
  48. 根据权利要求46或47所述的装置，其特征在于，所述处理单元还用于：
    根据所述第一信息和所述第二信息中的至少一项，以及终端设备的位置信息确定第一定时提前。
  49. 一种通信装置，其特征在于，包括处理器，所述处理器和存储器耦合；
    所述处理器，用于执行所述存储器中存储的计算机程序或指令，使得所述通信装置实现权利要求1至10中任意一项所述的方法。
  50. 一种通信装置，其特征在于，包括处理器，所述处理器和存储器耦合；
    所述处理器，用于执行所述存储器中存储的计算机程序或指令，使得所述通信装置实现权利要求11至19中任意一项所述的方法。
  51. 一种通信装置，其特征在于，包括处理器，所述处理器和存储器耦合；
    所述处理器，用于执行所述存储器中存储的计算机程序或指令，使得所述通信装置实现权利要求20至24中任意一项所述的方法。
  52. 一种计算机可读存储介质，其特征在于，存储有计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得所述计算机实现如权利要求1至24中任意一项所述的方法。
  53. 一种计算机程序产品，其特征在于，包括指令，当所述指令在计算机上运行时，使得所述计算机实现如权利要求1至24中任意一项所述的方法。
  54. 一种通信系统，其特征在于，包括分布式单元、集中式单元以及终端设备；
    所述分布式单元用于执行如权利要求1至10中任意一项所述的方法；
    所述集中式单元用于执行如权利要求11至19中任意一项所述的方法；
    所述终端设备用于执行如权利要求20至24中任意一项所述的方法。
PCT/CN2022/125731 2021-10-20 2022-10-17 一种配置方法及装置 WO2023066209A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111223112.XA CN116017490A (zh) 2021-10-20 2021-10-20 一种配置方法及装置
CN202111223112.X 2021-10-20

Publications (1)

Publication Number Publication Date
WO2023066209A1 true WO2023066209A1 (zh) 2023-04-27

Family

ID=86025324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/125731 WO2023066209A1 (zh) 2021-10-20 2022-10-17 一种配置方法及装置

Country Status (2)

Country Link
CN (1) CN116017490A (zh)
WO (1) WO2023066209A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102083197A (zh) * 2010-12-23 2011-06-01 华为技术有限公司 时间提前量的处理方法、设备和系统
WO2021158577A1 (en) * 2020-02-03 2021-08-12 Google Llc Conditional configuration in a distributed base station
CN113382440A (zh) * 2020-03-10 2021-09-10 联发科技（新加坡）私人有限公司 非地面网络通信中的用户设备定时提前报告
CN113939006A (zh) * 2021-09-26 2022-01-14 中国信息通信研究院 一种终端定时提前上报方法和设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102083197A (zh) * 2010-12-23 2011-06-01 华为技术有限公司 时间提前量的处理方法、设备和系统
WO2021158577A1 (en) * 2020-02-03 2021-08-12 Google Llc Conditional configuration in a distributed base station
CN113382440A (zh) * 2020-03-10 2021-09-10 联发科技（新加坡）私人有限公司 非地面网络通信中的用户设备定时提前报告
CN113939006A (zh) * 2021-09-26 2022-01-14 中国信息通信研究院 一种终端定时提前上报方法和设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTERDIGITAL: "Introduction of Release-17 support for Non-Terrestrial Networks (NTN)", 3GPP RAN WG2 MEETING #117-E R2-2203547, 3 March 2022 (2022-03-03), XP052131482 *

Also Published As

Publication number Publication date
CN116017490A (zh) 2023-04-25

Similar Documents

Publication Publication Date Title
US20200396652A1 (en) Method, apparatus, computer program product and computer program for conditional handover
CN113423131B (zh) 通信方法和装置
US20210185578A1 (en) Data transmission method, radio access network device, and terminal device
WO2021227587A1 (zh) 一种数据传输方法及设备
EP3949514B1 (en) Optional sending of complete message in conditional handover
WO2022206313A1 (zh) 无线通信方法、装置及系统
US20220303838A1 (en) Method, device and computer storage medium of communication
US20230362750A1 (en) Data transmission method and apparatus
CN113396608B (zh) 一种用于执行切换的用户设备及其中的方法
CN110839267B (zh) 服务节点更新方法、终端设备和网络侧设备
WO2021031035A1 (zh) 一种通信方法及装置
WO2023066209A1 (zh) 一种配置方法及装置
US20240107399A1 (en) Survival time dependent flexible handover execution
US20230328600A1 (en) Apparatus comprising at least one processor
EP3742860B1 (en) Random access response-less mobility enhancing solutions
CN113826418B (zh) 一种通信方法及装置
US20200252842A1 (en) Managing cell group configuration in disaggregated base station architecture
RU2736782C1 (ru) Способ и устройство для передачи информации и сетевое устройство
WO2024067270A1 (zh) 一种切换方法及通信装置
WO2023108564A1 (zh) 无线通信方法、终端设备以及网络设备
CN117998495A (zh) 通信方法、装置及系统
CN117397294A (zh) 无线通信的方法、终端设备以及网络设备
CN117528639A (zh) 一种通信方法及装置
JP2024501028A (ja) 第１装置、第２装置、及び通信方法
CN117769056A (zh) 一种通信方法及装置

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: 22882815

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE