WO2021027876A1 - 传输定时偏差的方法与装置 - Google Patents

传输定时偏差的方法与装置 Download PDF

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Publication number
WO2021027876A1
WO2021027876A1 PCT/CN2020/108921 CN2020108921W WO2021027876A1 WO 2021027876 A1 WO2021027876 A1 WO 2021027876A1 CN 2020108921 W CN2020108921 W CN 2020108921W WO 2021027876 A1 WO2021027876 A1 WO 2021027876A1
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WO
WIPO (PCT)
Prior art keywords
cell
timing deviation
node
sftd
primary
Prior art date
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Ceased
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PCT/CN2020/108921
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English (en)
French (fr)
Inventor
郑黎丽
张宏平
曾清海
胡星星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP20851422.4A priority Critical patent/EP4013105B1/en
Priority to AU2020327508A priority patent/AU2020327508B2/en
Publication of WO2021027876A1 publication Critical patent/WO2021027876A1/zh
Priority to US17/669,856 priority patent/US12156152B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • This application relates to the field of communications, and in particular to a method and device for transmission timing deviation.
  • the dual-connectivity (DC) technology refers to that a terminal device can establish a wireless link with two base stations.
  • the two base stations include a primary station, and the remaining base stations are secondary stations.
  • the master station can configure the terminal equipment to measure the timing deviation between the cells and send the timing deviation measurement result to the secondary station.
  • the timing deviation is the system frame number and the frame timing deviation (system frame number (SFN) and frame timing difference, SFTD).
  • the method for the primary station to send the timing deviation measurement result to the secondary station is to send the timing deviation and the physical cell identifier (PCI) of the cell corresponding to the timing deviation to the secondary station.
  • PCI physical cell identifier
  • the existing method may prevent the secondary station as the receiving end from correctly identifying the cells corresponding to the multiple timing deviations.
  • This application provides a method and device for transmission timing deviation.
  • the secondary node can accurately identify the cell corresponding to the SFTD.
  • a method for transmitting timing deviation is provided.
  • the method is implemented by a network device that can act as a master node, or implemented by a chip or circuit configured in the network device.
  • the method includes: the master node obtains the measured value of the timing deviation between the first cell and the second cell; the master node sends the measured value of the timing deviation to the secondary node and the identification information of the second cell, wherein the first cell is the master node Primary cell, the second cell is the primary and secondary cell of the secondary node, or the second cell is another cell, and the identification information of the second cell includes the physical cell identifier (PCI) and frequency information of the second cell, or ,
  • the identification information of the second cell includes the cell global identifier (CGI) of the second cell.
  • PCI physical cell identifier
  • CGI cell global identifier
  • the master node sends the timing deviation between the first cell and the second cell, and the PCI and frequency information of the second cell to the secondary node. Therefore, to a certain extent, the secondary node can identify the timing deviation corresponding to the timing deviation.
  • the second cell the master node sends the timing deviation between the first cell and the second cell and the CGI of the second cell to the secondary node, so that the secondary node can identify the second cell corresponding to the timing deviation.
  • the primary node sends the timing deviation between cells and the identification information of the cell corresponding to the timing deviation to the secondary node, so that the secondary node can identify the cell corresponding to the timing deviation to a certain extent.
  • a method for transmitting timing deviation is provided.
  • the method is implemented by a network device that can serve as a secondary node, or implemented by a chip or circuit configured in the network device.
  • the method includes: the secondary node receives the measurement value of the timing deviation between the first cell and the second cell and the identification information of the second cell from the primary node; the secondary node learns the timing deviation between the first cell and the second cell, wherein the first cell The cell is the primary cell of the primary node, the second cell is the primary and secondary cell of the secondary node, or the second cell is another cell, and the identification information of the second cell includes PCI and frequency point information, or the identification information of the second cell includes CGI of the second cell.
  • the primary node sends the timing deviation between cells and the identification information of the cell corresponding to the timing deviation to the secondary node, so that the secondary node can identify the cell corresponding to the timing deviation to a certain extent.
  • the timing deviation is a system frame number (SFN) and frame timing difference (SFTD).
  • SFN system frame number
  • SFTD frame timing difference
  • the secondary node may perform related processing based on the SFTD.
  • SFTD can be used for discontinuous reception (Discontinuous Reception, DRX) alignment, or measurement gap (measurement gap) identification (for the purpose of DRX alignment and identification of measurement gap).
  • DRX discontinuous Reception
  • measurement gap measurement gap identification
  • the measured value of the timing deviation and the identification information of the second cell are carried in the same information element.
  • the identification information of the second cell includes the physical cell identification PCI of the second cell and frequency point information
  • the measured value of the timing deviation is the same as that of the second cell
  • the PCI of the second cell is carried in the first cell
  • the frequency information of the second cell is carried in the second cell.
  • the frequency information of the second cell is the measurement value of the timing deviation at the position of the second cell or the second cell.
  • the position of the PCI of the cell in the first cell corresponds one-to-one.
  • the position of the frequency information of the second cell in the second cell corresponds to the position of the SFTD measurement value in the first cell, indicating that the position of the SFTD measurement value in the first cell can be determined.
  • the position of the frequency point information of the second cell corresponding to the SFTD in the second cell, or the measurement value of the SFTD corresponding to the second cell can be determined according to the position of the frequency point information of the second cell in the second cell The position in the first cell.
  • the secondary node can learn the frequency information of a certain cell in the second cell and the measurement value of a certain SFTD in the first cell. Is corresponding.
  • the identification information of the second cell includes the cell global identification CGI of the second cell
  • the measurement value of the timing deviation is carried in the first information element
  • the CGI of the second cell is carried in the second cell, where the position of the CGI of the second cell in the second cell corresponds to the position of the measurement value of the timing deviation in the first cell in a one-to-one correspondence.
  • the position of the CGI of the second cell in the second cell corresponds to the position of the SFTD measurement value in the first cell, indicating that the SFTD corresponding to the SFTD can be determined according to the position of the SFTD measurement value in the first cell
  • the secondary node can learn that the CGI of a certain cell in the second cell corresponds to the measured value of a certain SFTD in the first cell. of.
  • the master node sends the measured value of the timing deviation and the identification information of the second cell to the slave node, including: the master node sends to the slave node the first cell and the second cell respectively The SFTD of multiple second cells, and the identification information of each second cell.
  • the identification information of each second cell includes the PCI and frequency information of the cell, or the CGI of the cell.
  • the measured value of the SFTD and the identification information of the second cell may be carried in the same information element, or at least part of the identification information of the second cell may be carried in a different information element from the measured value of the SFTD. Letter yuan.
  • the position of at least part of the identification information of the second cell in the corresponding cell corresponds to The position of the measurement value of the SFTD in the corresponding cell, that is, the position of the measurement value of the SFTD in the corresponding cell corresponds to the position of the identification information of the second cell corresponding to the SFTD in the corresponding cell in a one-to-one correspondence.
  • the primary node sends to the secondary node the timing deviation between cells and the identification information of the cell (non-primary cell) corresponding to the timing deviation, so that the secondary node Identify the cell (non-primary cell) corresponding to the timing deviation.
  • the application also provides a method for measuring timing deviation.
  • the secondary node negotiates the timing deviation measurement configuration for the terminal device with the master node to ensure that the terminal device performs a timing deviation measurement task at the same time.
  • a method for measuring timing deviation is provided.
  • the method is implemented by a network device that can serve as a secondary node, or implemented by a chip or circuit configured in the network device.
  • the method includes: the secondary node determines to configure the terminal equipment to measure the timing deviation between the cells; with the consent of the primary node, the secondary node configures the terminal equipment to measure the timing deviation.
  • the timing deviation is SFTD.
  • This application can realize that the secondary node configures the terminal equipment to measure the timing deviation between cells.
  • the secondary node configures the terminal device to measure the timing deviation through negotiation with the primary node.
  • the secondary node configures the terminal equipment to measure the timing deviation between cells with the consent of the primary node. Therefore, this application can enable the master node and the secondary node to configure the terminal device to measure SFTD through negotiation in a dual connectivity scenario, thereby avoiding the configuration of the SFTD measurement task for the terminal device from exceeding the capability of the terminal device.
  • the method further includes: the secondary node sends a request message to the master node for requesting to configure the terminal device to measure the timing deviation; wherein, when the master node agrees , The secondary node configures the terminal device to measure the timing deviation, including: in the case of receiving a response message indicating approval of the configuration sent by the primary node, the secondary node configures the terminal device to measure the timing deviation; or when the primary node has not received a request message In the case of the response message, the secondary node configures the terminal device to measure the timing deviation.
  • the request message also carries timing deviation measurement configuration information, and the timing deviation measurement configuration information includes identification information of the cell corresponding to the timing deviation; the method further includes : In the case of receiving the information indicating the measurement result of the timing deviation sent by the master node, the secondary node does not configure the terminal device to measure the timing deviation.
  • the cell corresponding to the timing deviation includes the primary and secondary cells of the secondary node and other cells; wherein the information sent by the primary node for indicating the measurement result of the timing deviation includes : The timing deviation between the primary cell and other cells; or the timing deviation between the primary and secondary cells and other cells.
  • the identification information of the cell corresponding to the timing deviation includes: the PCI and frequency information of the cell; or the CGI of the cell.
  • a method for measuring timing deviation is provided.
  • the method is implemented by a network device that can act as a master node, or implemented by a chip or circuit configured in the network device.
  • the method includes: the master node and the auxiliary node negotiate the timing deviation measurement configuration of the terminal device to ensure that the terminal device performs a timing deviation measurement task at the same time.
  • the master node and the slave node negotiate a timing deviation measurement configuration for the terminal device, including: the master node receives a request message from the slave node, and the request message is used to request the slave node Configure the terminal equipment to measure the timing deviation between the cells; the master node sends a response message indicating agreement or disagreement to the configuration to the secondary node.
  • the timing deviation is SFTD.
  • This application can realize that the secondary node configures the terminal equipment to measure the timing deviation between cells.
  • the secondary node configures the terminal device to measure the timing deviation through negotiation with the primary node.
  • the secondary node configures the terminal equipment to measure the timing deviation between cells with the consent of the primary node. Therefore, this application can enable the master node and the secondary node to configure the terminal device to measure SFTD through negotiation in a dual connectivity scenario, thereby avoiding the configuration of the SFTD measurement task for the terminal device from exceeding the capability of the terminal device.
  • the request message also carries timing deviation measurement configuration information, and the timing deviation measurement configuration information includes identification information of the cell corresponding to the timing deviation; the method further includes : The master node sends the information indicating the measurement result of the timing deviation to the secondary node, indicating that it does not agree with the secondary node to configure the terminal device to measure the timing deviation.
  • the cell corresponding to the timing deviation includes the primary and secondary cells of the secondary node and other cells; wherein the information sent by the primary node for indicating the measurement result of the timing deviation includes : The timing deviation between the primary cell and other cells; or the timing deviation between the primary and secondary cells and other cells.
  • the identification information of the cell corresponding to the timing deviation includes: the PCI and frequency information of the cell; or the CGI of the cell.
  • the method provided by the third aspect or the fourth aspect can enable the master node and the slave node to configure the terminal device to measure SFTD through negotiation in a dual connectivity scenario, thereby avoiding the configuration of the terminal device for SFTD measurement The task exceeds the capabilities of the terminal device.
  • a method for measuring timing deviation is provided.
  • the method is implemented by a terminal device, or implemented by a chip or circuit configured in the terminal device.
  • the method includes: receiving first measurement configuration information of the timing deviation between cells from a master node; receiving second measurement configuration information of the timing deviation between cells from a secondary node; and according to the first measurement configuration information and/or the second measurement Configuration information to measure the timing deviation between cells.
  • the timing deviation is SFTD.
  • This application can prevent the SFTD measurement task configured for the terminal device from exceeding the capability of the terminal device.
  • measuring the timing deviation between cells according to the first measurement configuration information and/or the second measurement configuration information includes: measuring the cell according to the first measurement configuration information Or measure the timing deviation between the cells according to the second measurement configuration information; or after completing the measurement of the timing deviation between the cells according to the first measurement configuration information, measure the time difference between the cells according to the second measurement configuration information Timing deviation; or after finishing measuring the timing deviation between the cells according to the second measurement configuration information, measuring the timing deviation between the cells according to the first measurement configuration information.
  • the method provided in the fifth aspect can prevent the SFTD measurement task configured for the terminal device from exceeding the capability of the terminal device.
  • a communication device in a sixth aspect, can be used to perform the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect.
  • the communication device may include a module for executing the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect.
  • a communication device in a seventh aspect, includes a processor coupled with a memory.
  • the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions stored in the memory, so that the first aspect , The second aspect, the third aspect, the fourth aspect, or the fifth aspect is executed.
  • the processor is configured to execute a computer program or instruction stored in the memory, so that the communication device executes the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect.
  • the communication device includes one or more processors.
  • the communication device may further include a memory coupled with the processor.
  • the communication device may include one or more memories.
  • the memory can be integrated with the processor or provided separately.
  • the communication device may also include a transceiver.
  • a chip in an eighth aspect, includes a processing module and a communication interface.
  • the processing module is used to control the communication interface to communicate with the outside.
  • the processing module is also used to implement the first, second, and third aspects. The method in the fourth or fifth aspect.
  • the processing module is a processor.
  • a computer-readable storage medium on which is stored a computer program (also called an instruction) for implementing the method in the first, second, third, fourth, or fifth aspect. Or code).
  • the computer when the computer program is executed by a computer, the computer can execute the method in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect.
  • the computer may be a communication device.
  • a computer program product includes a computer program (also called an instruction or code).
  • a computer program also called an instruction or code
  • the computer realizes the first aspect, the second aspect, and the third aspect.
  • the computer may be a communication device.
  • a communication system including the communication device provided in the sixth aspect for executing the method provided in the first aspect, the communication device provided in the sixth aspect for executing the method provided in the second aspect, and a terminal equipment.
  • the communication device provided by the sixth aspect for executing the method provided by the first aspect may be referred to as a master node, and the communication device provided by the sixth aspect for executing the method provided by the second aspect may be referred to as a secondary node.
  • the terminal device can establish a wireless link with the primary node and the secondary node through dual connection technology.
  • a communication system including the communication device provided in the sixth aspect for executing the method provided in the third aspect, the communication device provided in the sixth aspect for executing the method provided in the fourth aspect, and the second The communication device provided by the sixth aspect for executing the method provided by the fifth aspect.
  • the communication device provided by the sixth aspect for executing the method provided by the third aspect may be called a secondary node
  • the communication device provided by the sixth aspect for executing the method provided by the fourth aspect may be called a master node
  • the communication device provided by the aspect for performing the method provided by the fifth aspect may be referred to as a terminal device.
  • the terminal device can establish a wireless link with the primary node and the secondary node through dual connection technology.
  • the primary node sends to the secondary node the timing deviation between cells and the identification information of the cell (non-primary cell) corresponding to the timing deviation, so that the secondary node Identify the cell (non-primary cell) corresponding to the timing deviation.
  • the method provided by the third aspect, the fourth aspect or the fifth aspect can prevent the SFTD measurement task configured for the terminal device from exceeding the capability of the terminal device.
  • FIG. 1 is a schematic architecture diagram of a wireless communication system to which an embodiment of the application can be applied;
  • Figure 2 is a schematic diagram of a dual-connection communication scenario
  • FIG. 3 is a schematic flowchart of a method for transmission timing deviation provided by an embodiment of the application.
  • FIG. 4 is a schematic flowchart of a method for measuring timing deviation provided by another embodiment of this application.
  • FIG. 5 is a schematic flowchart of a method for measuring timing deviation provided by still another embodiment of this application.
  • FIG. 6 is a schematic block diagram of a communication device provided by an embodiment of this application.
  • FIG. 7 is a schematic block diagram of another communication device according to an embodiment of the application.
  • FIG. 8 is a schematic block diagram of a terminal device provided by an embodiment of the application.
  • FIG. 9 is a schematic block diagram of a network device provided by an embodiment of the application.
  • LTE long term evolution
  • 5G fifth generation mobile communication
  • M2M machine to machine communication
  • NR new radio
  • 5G system can also be called an NR system.
  • FIG. 1 is a schematic structural diagram of a wireless communication system 100 to which an embodiment of the application can be applied.
  • the wireless communication system 100 may include one or more network devices 110, one or more terminal devices 120, and a core network 130.
  • One or more network devices 110 constitute a radio access network (RAN) (not shown in FIG. 1).
  • RAN radio access network
  • the network device 110 may be used to communicate with one or more terminal devices 120, and may also be used to communicate with one or more base stations with partial terminal device functions.
  • the network device 110 may be used to communicate with the terminal device 120 through one or more antennas under the control of a network device controller (not shown in Fig. 1).
  • the network device controller may be a part of the core network 130, or it may be integrated into the network device 110.
  • the network device 110 may be used to transmit control information or user data to the core network 130 through a backhaul interface 150 (such as an S1 interface).
  • a backhaul interface 150 such as an S1 interface
  • the network devices 110 may communicate directly or indirectly through a non-ideal backhaul interface 140 (such as an X2 interface).
  • the network device 110 may be referred to as a base station.
  • the base station may have many forms, for example, a macro base station, a micro base station, a relay station, or an access point.
  • the network device 110 may be an evolved Node B (eNB) in an LTE system, or a 5G system, or a transmission reception point (TRP).
  • eNB evolved Node B
  • TRP transmission reception point
  • some network devices 110 are eNBs and some are gNBs.
  • the network device 110 may also be a central unit (CU) or other network entities.
  • the network device 110 may include some or all of the functions of the aforementioned network entities.
  • the terminal device 120 may communicate with the core network 130 via the RAN.
  • the terminal device 120 may be distributed in the entire wireless communication system 100.
  • the terminal device 120 may be stationary or mobile.
  • the terminal device 120 may be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user Agent or user device.
  • the terminal device 120 may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, industrial control Wireless terminals in (industrial control), wireless terminals in self-driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid (smart grid), transportation safety (transportation safety)
  • the network equipment and/or terminal equipment in the embodiments of the present application may be configured with multiple antennas.
  • the plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain.
  • Those of ordinary skill in the art can understand that they can all include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers). , Demodulator, demultiplexer or antenna, etc.). Therefore, multiple antenna technology can be used to communicate between network devices and terminal devices.
  • the wireless communication system shown in FIG. 1 is only to illustrate the technical solutions of the application more clearly, and does not constitute a limitation to the application. Those of ordinary skill in the art will know that with the evolution of the network architecture and the emergence of new business scenarios, the The technical solutions provided in the application embodiments are equally applicable to similar technical problems.
  • Dual connectivity is an important technology introduced in 3GPP Release-12. Dual connectivity technology means that one terminal device can establish a wireless link with two base stations.
  • FIG. 2 shows a schematic diagram of a scene of a communication system 200 communicating through dual connections.
  • the communication system 200 includes at least two network devices, such as the network devices 210 and 220 shown in FIG. 2; the communication system 200 may also include at least one terminal device, such as the terminal device shown in FIG. 230.
  • the terminal device 230 may establish a wireless link with the network device 210 and the network device 220 through dual connection technology or multiple connection technology.
  • the network device 210 and the network device 220 may use the X2 interface to implement carrier aggregation, thereby providing a higher rate for the terminal device.
  • the network device used for the initial access of the terminal device may be referred to as the primary base station.
  • the main base station is responsible for radio resource control (Radio Resource Control, RRC) communication with the terminal equipment.
  • RRC Radio Resource Control
  • the main base station may also be called the main station.
  • the network device added during RRC reconfiguration may be called a secondary base station.
  • the secondary base station is used to provide additional wireless resources for the terminal equipment.
  • the secondary base station may also be called a secondary station.
  • the network device 210 may be the primary base station and the network device 220 may be the secondary base station; or the network device 220 may be the primary base station and the network device 210 may be the secondary base station.
  • MN master node
  • the rest of the network devices except the network device serving as the master node may be referred to as secondary nodes (SN).
  • SN secondary nodes
  • the master node can be a master base station.
  • the secondary node may be a secondary base station.
  • the serving cell refers to the cell configured by the network for the terminal equipment to perform uplink and downlink transmission.
  • the primary cell group may include one primary cell (primary cell, PCell).
  • the primary cell group may also include one or more secondary cells (secondary cells, SCell).
  • the master node includes a PCell.
  • the master node includes one PCell and one or more SCells.
  • the secondary cell group may include a primary secondary cell (PSCell). Primary and secondary cells may also be called special cells.
  • the secondary cell group may also include one or more SCells.
  • the secondary node includes a PSCell.
  • the secondary node includes one PSCell and one or more SCells.
  • the network device 210 may be the master node and the network device 220 may be the auxiliary node; or the network device 220 may be the master node and the network device 210 may be the auxiliary node.
  • the master node can be MeNB or MgNB.
  • the master node is the MeNB, which means that the base station (eNB) or central unit (CU) of the LTE system is the master node.
  • the master node is MgNB, which means that the base station (gNB) or central unit (CU) of the 5G system is the master node.
  • the secondary node may be SeNB or SgNB.
  • the secondary node is the SeNB, which means that the eNB is the secondary node.
  • the secondary node is SgNB, which means that gNB is used as a secondary node.
  • the dual connection (DC) can have different names.
  • the dual connection constructed by the base station (eNB) of the 4G system and the base station (gNB) of the 5G system can be called EN-DC (E-UTRA-NR Dual) Connectivity).
  • EN-DC E-UTRA-NR Dual
  • the base station of the 5G system under this architecture can be called en-gNB.
  • the dual connectivity constructed by the eNB and the gNB can be called NE-DC (NR E-UTRA Dual Connectivity).
  • the dual connection constructed by the ng-eNB and gNB can be called NGEN-DC (NG-RAN E-UTRA-NR Dual Connectivity).
  • NR-DC NR-NR Dual Connectivity
  • the secondary nodes in different DCs are different.
  • the secondary node in (NG)EN-DC and NR-DC is gNB
  • the secondary node in NE-DC is eNB.
  • the network device 210 and the network device 220 in FIG. 2 may correspond to any two network devices 110 in FIG. 1 that can communicate through the X2 interface.
  • the terminal device 230 in FIG. 2 may correspond to the terminal device 120 in FIG. 1.
  • SFTD represents the timing deviation between two base stations.
  • the timing deviation between two base stations refers to the timing deviation between the cells of the two base stations.
  • base station 1 has cell 1 and cell 2
  • base station 2 has cell 3.
  • the timing deviation between base station 1 and base station 2 can be the timing deviation between cell 1 and cell 3, or the difference between cell 2 and cell 3. The timing deviation between.
  • the network device can configure the terminal device to measure SFTD.
  • the network equipment can configure the terminal equipment to measure the SFTD between the primary cell of the primary node and the cell of the secondary node. For example, the SFTD between the primary cell (PCell) of the primary node and the primary and secondary cell (PSCell) of the secondary node. For example, the SFTD between the primary cell (PCell) of the primary node and the secondary cell (SCell) of the secondary node.
  • PCell primary cell
  • PSCell primary and secondary cell
  • SCell secondary cell
  • the network equipment configures the terminal equipment to measure the SFTD between the primary cell of the primary node and the neighboring cells.
  • the SFTD between the primary cell (PCell) of the primary node and neighboring cells is a 5G or 4G cell.
  • the master node can configure terminal equipment to measure SFTD.
  • the terminal device can send the SFTD measurement result to the master node through the air interface.
  • the air interface represents the interface between the network device and the terminal device.
  • the master node can send the SFTD measurement result to the slave node.
  • the SFTD measurement result sent by the master node to the secondary node includes the SFTD measurement value and the physical cell identifier (physical cell identifier, PCI) of the PSCell or neighboring cells corresponding to the SFTD.
  • PCI physical cell identifier
  • the master node will send the measurement results of multiple SFTDs to the secondary node, and the multiple SFTDs may be timing deviations between the PCell and multiple PSCells (or neighboring cells).
  • the multiple SFTDs are the timing deviations between the PCell and the multiple PSCells. These multiple PSCells may belong to different frequency points. In the current technology, the same PCI may be allocated to cells of different frequency points. Therefore, when the master node sends the measurement results of multiple SFTDs to the secondary node, the existing method of transmitting SFTD may cause the secondary node to be unable to identify the PSCell or neighboring cells corresponding to the SFTD.
  • the present application provides a method and device for transmission timing deviation.
  • the secondary node can accurately identify the cell corresponding to the SFTD to a certain extent.
  • the embodiments of the present application are applied to a dual-connection communication scenario, for example, may be applied to the communication system shown in FIG.
  • the embodiments of the present application can also be applied to multi-connection communication scenarios.
  • the network device involved in the embodiment of this application is the network device 110 described above.
  • the terminal device involved in the embodiment of the present application is the terminal device 120 described above.
  • FIG. 3 is a schematic flowchart of a method for transmission timing deviation provided by an embodiment of the application. The method includes the following steps.
  • S310 The master node obtains a measurement value of the timing deviation between the first cell and the second cell.
  • S320 The master node sends the measured value of the timing deviation between the first cell and the second cell and the identification information of the second cell to the secondary node.
  • the primary node and the secondary node represent network devices in a dual-connection communication scenario.
  • the primary node is the network device 210 shown in FIG. 2 and the secondary node is the network device 220 shown in FIG. 2.
  • the main node and the auxiliary node please refer to the previous article.
  • the first cell is the primary cell (PCell) of the master node.
  • the second cell is the primary and secondary cell (PSCell) of the secondary node, or the second cell is another cell.
  • the second cell is a secondary cell (SCell) of the secondary node.
  • the second cell is a neighboring cell of the terminal device, and the neighboring cell is an LTE cell or an NR cell.
  • the terminal device here is a terminal device that establishes dual-connection communication or multi-connection communication with the first cell and the second cell.
  • the timing deviation involved in the embodiments of the present application may include any of the following: timing deviation between PCell and PSCell, timing deviation between PCell and neighboring cells, PCell and SCell (representing the difference between the secondary node and PSCell) Outside serving cells).
  • the identification information of the second cell indicates information that can identify the second cell.
  • the secondary node may learn the second cell corresponding to the timing deviation through the identification information of the second cell.
  • the identification information of the second cell includes a physical cell identifier (PCI) and frequency point information of the second cell.
  • PCI physical cell identifier
  • PCI is to distinguish different cells.
  • the value of PCI is limited. For example, the value of PCI in the LTE system is 504, and the value of PCI in the NR system is 1008. It is inevitable that PCI will be multiplexed in network deployment. For example, it may be of different frequencies.
  • the cells on the points are assigned the same PCI. Generally, for cells on the same frequency point, PCI reuse is avoided as much as possible. For example, adjacent cells on the same frequency are allocated different PCIs. In other words, when the network is deployed, different cells on the same frequency will be assigned different PCIs with a high probability. In this case, PCI and frequency information can determine a cell to a certain extent.
  • the secondary node can learn the second cell corresponding to the timing deviation through the PCI and frequency information of the cell.
  • the master node sends the timing deviation between the first cell and the second cell, and the PCI and frequency information of the second cell to the secondary node. Therefore, to a certain extent, the secondary node can identify the timing deviation corresponding to the timing deviation.
  • the second cell is a certain extent.
  • the identification information of the second cell includes a cell global identifier (CGI) of the second cell.
  • CGI cell global identifier
  • CGI is an identification code that uniquely identifies a cell in the world. It can be understood that the CGI of the second cell can uniquely identify the second cell.
  • the secondary node After the secondary node receives the inter-cell timing deviation and the cell identification information from the primary node, it can learn the second cell corresponding to the timing deviation through the CGI of the cell.
  • the master node sends the timing deviation between the first cell and the second cell and the CGI of the second cell to the secondary node, so that the secondary node can identify the second cell corresponding to the timing deviation.
  • CGIs under various standards may be referred to as CGIs.
  • CGI under various standards can be further defined with different names.
  • the CGI of an LTE cell may be called E-UTRAN cell global identifier (ECGI)
  • the CGI of an NR cell may be called NR cell global identifier (NCGI).
  • ECGI can be constructed by public land mobile network (PLMN) ID and E-UTRA cell ID (cell ID)
  • NCGI can be constructed by PLMN ID and NR cell ID. Therefore, the CGI mentioned in the embodiments of the present application is equivalent to ECGI if applied to an LTE cell, and equivalent to NCGI if applied to an NR cell.
  • the identification information of the second cell may also include the PCI of the second cell.
  • the identification information of the second cell may also include frequency point information of the second cell.
  • the master node sends to the secondary node the measured value of the inter-cell timing deviation and the identification information of the non-primary cell (for example, the second cell in the embodiment of this application) corresponding to the timing deviation.
  • the secondary node can identify the cell corresponding to the timing deviation.
  • the master node may also send the PCI of the first cell to the secondary node.
  • the measurement value of the timing offset between the first cell and the second cell may include a system frame number (SFN) offset (sfn-OffsetResult) and/or a frame boundary offset (frameBoundaryOffsetResult) of the first cell and the second cell.
  • SFN system frame number
  • sfn-OffsetResult a system frame number offset
  • frameBoundaryOffsetResult a frame boundary offset of the first cell and the second cell.
  • the timing deviation involved in the embodiment of the present application may be referred to as a system frame number (SFN) and frame timing difference (SFTD), for example.
  • SFN system frame number
  • SFTD frame timing difference
  • timing deviation in the embodiment of the present application can be replaced with a corresponding name.
  • timing deviation is described as SFTD.
  • the master node may also send a reference signal received power (reference signal received power) to the secondary node.
  • Reference signal received power Signal receiving power (RSRP) measurement value (rsrp-Result).
  • the RSRP here refers to the RSRP of cells other than the primary cell (PCell) in the cells corresponding to the SFTD, for example, the RSRP of the primary and secondary cells (PSCell) or neighboring cells.
  • step S320 the measurement value of the SFTD between the first cell and the second cell sent by the master node to the secondary node may be measured and measured by the terminal device configured by the master node.
  • step S310 includes: the master node sends the SFTD measurement configuration information of the first cell and the second cell to the terminal device; the terminal device measures the first cell according to the SFTD measurement configuration information And report the SFTD of the first cell and the second cell to the master node.
  • the measurement configuration information of the SFTD may include the cell identifiers of the first cell and the second cell, for example, PCI.
  • the measurement configuration information of the SFTD can enable the terminal device to know which two cells to measure the SFTD between. It should be understood that the measurement configuration information of SFTD may also include other information related to SFTD measurement.
  • the terminal device may also report the PCI of the second cell to the master node.
  • the SFTD measurement value sent by the master node to the secondary node may be the latest measurement value measured by the terminal device configured by the master node before step S320, or the master node may configure the non-latest measurement value measured by the terminal device before step S320. Measurements.
  • the master node configures the terminal device to measure the SFTD between the first cell and the second cell multiple times.
  • the master node sends the SFTD value to the secondary node.
  • the measurement value may be the measurement value of the latest SFTD measured by the terminal device configured by the master node, or the measurement value of the SFTD that is not the latest measurement measured by the terminal device configured by the master node, for example, the measured value of the SFTD measured last time.
  • the measured value of the SFTD sent by the primary node to the secondary node in step S320 may also be different from the current terminal device.
  • the first cell may not be a primary cell
  • the second cell may not be a primary/secondary cell or a neighboring cell.
  • step S320 after receiving the measurement value of the SFTD and the identification information of the cell sent by the master node, the secondary node can analyze and obtain the measurement value of the SFTD as the timing deviation between the first cell and the second cell.
  • the secondary node may perform related processing based on the SFTD.
  • SFTD can be used for discontinuous reception (Discontinuous Reception, DRX) alignment, or measurement gap (measurement gap) identification (for the purpose of DRX alignment and identification of measurement gap).
  • DRX discontinuous Reception
  • measurement gap measurement gap identification
  • the measured value of the SFTD of the first cell and the second cell and the identification information of the second cell may be carried in the same information element, or at least part of the identification information of the second cell may be carried in different information from the measured value of the SFTD. Yuanzhong.
  • the position of at least part of the identification information of the second cell in the corresponding cell corresponds to the SFTD The position of the measured value in the corresponding cell.
  • information element mentioned in this article refers to an information element (IE).
  • cell 1 contains cell 2
  • cell 2 contains data or information
  • cell 1 contains cell 2
  • cell 3 contains data or information.
  • the cell may also be referred to as a field.
  • the identification information of the second cell includes the PCI and frequency information of the second cell
  • the measured values of the SFTD of the first cell and the second cell and the PCI of the second cell are carried in the first information element
  • the frequency information of the second cell is carried in the second cell, where the position of the frequency information of the second cell in the second cell corresponds to the position of the SFTD measurement value in the first cell in a one-to-one correspondence.
  • the position of the frequency information of the second cell in the second cell corresponds to the position of the SFTD measurement value in the first cell, indicating that the position of the SFTD measurement value in the first cell can be determined.
  • the position of the frequency point information of the second cell corresponding to the SFTD in the second cell, or the measurement value of the SFTD corresponding to the second cell can be determined according to the position of the frequency point information of the second cell in the second cell The position in the first cell.
  • the position (or ranking) of the frequency point information of the second cell in the second cell is the same as the position (or ranking) of the SFTD measurement value in the first cell.
  • the secondary node After the secondary node receives the first cell and the second cell sent by the primary node, it can learn that the frequency information of a certain cell in the second cell and the measured value of a certain SFTD in the first cell are corresponding.
  • the measured value of the SFTD of the first cell and the second cell and the PCI of the second cell are carried in the first cell named "MeasResultCellListSFTD", and the frequency information of the second cell is carried in the name "sftdFrequencyList”. In the second cell.
  • the information element named "MeasResultCellListSFTD” can also be divided into two types: “MeasResultCellListSFTD-NR” information element and “MeasResultCellListSFTD-EUTRA” information element.
  • the "MeasResultCellListSFTD-NR” information element is suitable for the case where the secondary node in the dual connectivity communication scenario is a gNB
  • the "MeasResultCellListSFTD-EUTRA" information element is suitable for the case where the secondary node is an eNB in the dual connectivity communication scenario.
  • PhysCellId represents a physical cell identity (PCI)
  • sfn-OffsetResult represents a system frame number (SFN) deviation
  • frameBoundaryOffsetResult represents a frame boundary deviation
  • rsrp-Result represents a reference signal power (RSRP).
  • the cell named "sftdFrequencyList” can also be divided into two types: “sftdFrequencyList-NR” cell and “sftdFrequencyList-EUTRA” cell.
  • the “sftdFrequencyList-NR” cell is suitable for the case where the secondary node in the dual connectivity communication scenario is a gNB
  • the “sftdFrequencyList-EUTRA” cell is suitable for the case where the secondary node is an eNB in the dual connectivity communication scenario.
  • sftdFrequencyList-NR:: SEQUENCE(SIZE(1..maxCellSFTD)OF ARFCN-ValueNR
  • sftdFrequencyList-EUTRA:: SEQUENCE(SIZE(1..maxCellSFTD)OF ARFCN-ValueEUTRA
  • the position (or ranking) of the frequency information of the second cell in the "sftdFrequencyList” cell is the same as the position (or ranking) of the SFTD measurement value in the "MeasResultCellListSFTD" cell.
  • the measured value of SFTD is located in the i-th "MeasResultCellSFTD-NR" cell in the "MeasResultCellListSFTD-NR” cell, and the frequency information of the second cell is "sftdFrequencyList" -NR"
  • the i-th frequency point information recorded in the cell, i is a positive integer. For example, i is equal to 1.
  • the measured value of SFTD is located in the j-th "MeasResultCellSFTD-EUTRA" cell in the “MeasResultCellListSFTD-EUTRA” cell, and the frequency information of the second cell is “sftdFrequencyList” -EUTRA" the j-th frequency point information recorded in the cell, j is a positive integer. For example, j is equal to 1.
  • the identification information of the second cell includes the CGI of the second cell
  • the measured values of the SFTD of the first cell and the second cell are carried in the first information element
  • the CGI of the second cell is carried in the second cell.
  • the position of the CGI of the second cell in the second cell corresponds to the position of the measurement value of the timing deviation in the first cell in a one-to-one correspondence.
  • the position of the CGI of the second cell in the second cell corresponds to the position of the SFTD measurement value in the first cell, indicating that the SFTD corresponding to the SFTD can be determined according to the position of the SFTD measurement value in the first cell
  • the position (or order) of the CGI of the second cell in the second cell is the same as the position (or order) of the SFTD measurement value in the first cell.
  • the secondary node After the secondary node receives the first cell and the second cell sent by the primary node, it can learn that the CGI of a certain cell in the second cell corresponds to the measured value of a certain SFTD in the first cell. .
  • the measured values of the SFTD of the first cell and the second cell are carried in a first information element named "MeasResultCellListSFTD", and the CGI information of the second cell is carried in a second information element named "sftdCgiList”.
  • CGI information may include one or more of the following information: PLMN ID, frequency band information, tracking area code (TAC) information, cell ID (cell ID), and so on.
  • PLMN ID PLMN ID
  • frequency band information frequency band information
  • TAC tracking area code
  • cell ID cell ID
  • the cell named "sftdCgiList” can also be divided into two types: “sftdCgiList-NR” cell and “sftdCgiList-EUTRA” cell.
  • the “sftdCgiList-NR” cell is suitable for the case where the secondary node in the dual connectivity communication scenario is a gNB
  • the “sftdCgiList-EUTRA” cell is suitable for the case where the secondary node is an eNB in the dual connectivity communication scenario.
  • sftdCgiList-EUTRA:: SEQUENCE(SIZE(1..maxCellSFTD)OF CGI-InfoEUTRA
  • the "CGI-InfoNR” information element can reuse the "CGI-InfoNR” information element in the prior art, and the "CGI-InfoEUTRA” information element can also reuse the "CGI-InfoEUTRA” information element in the current technology.
  • the position (or order) of the CGI of the second cell in the "sftdCgiList” cell is the same as the position (or order) of the SFTD measurement value in the "MeasResultCellListSFTD" cell.
  • the measured value of SFTD is located in the i-th "MeasResultCellSFTD-NR" cell in the "MeasResultCellListSFTD-NR” cell, and the CGI of the second cell is "sftdCgiList-NR" "The i-th CGI information recorded in the cell, i is a positive integer. For example, i is equal to 1.
  • the measured value of SFTD is located in the j-th "MeasResultCellSFTD-EUTRA" cell in the “MeasResultCellListSFTD-EUTRA” cell, and the CGI of the second cell is “sftdCgiList-EUTRA” "The j-th CGI information recorded in the cell, j is a positive integer. For example, j is equal to 1.
  • the identification information of the second cell may also include the PCI of the second cell.
  • the measured value of the SFTD of the first cell and the second cell and the PCI of the second cell are carried in the first cell (for example, "MeasResultCellListSFTD" cell), and the CGI of the second cell is carried in the second cell (for example, , "SftdCgiList” cell).
  • the measured value of the SFTD of the first cell and the second cell and the identification information of the second cell are carried in the same information element.
  • the identification information of the second cell includes the PCI and frequency information of the second cell
  • the measured value of the SFTD of the first cell and the second cell the PCI of the second cell and the frequency information of the second cell carry In the same cell.
  • the secondary node in the dual connectivity communication scenario is gNB
  • the measured values of the SFTD of the first cell and the second cell, the PCI of the second cell and the frequency information of the second cell are carried in the name "MeasRestulCellListSFTD-NR2" In the cell.
  • the secondary node in the dual connectivity communication scenario is an eNB
  • the measured value of the SFTD of the first cell and the second cell, the PCI of the second cell and the frequency information of the second cell are carried in the name "MeasRestulCellListSFTD-EUTRA2" In the cell.
  • the structure of the "MeasResultCellListSFTD-NR2" cell is as follows.
  • ssbFrequency represents the frequency information of the cell.
  • ssbFrequency represents the frequency information of the cell.
  • the measured value of the SFTD of the first cell and the second cell and the CGI of the second cell are carried in the same information element.
  • the secondary node in the dual connectivity communication scenario is a gNB
  • the measured values of the SFTD of the first cell and the second cell and the CGI of the second cell are carried in a cell named "MeasRestulCellListSFTD-NR2”.
  • the secondary node in the dual connectivity communication scenario is an eNB
  • the measured values of the SFTD of the first cell and the second cell and the frequency information of the second cell are carried in a cell named "MeasRestulCellListSFTD-EUTRA2".
  • the measured values of the SFTD of the first cell and the second cell, and the PCI and CGI of the second cell are carried in the same information element.
  • CGI-InfoNR and CGI-InfoEUTRA refer to the foregoing description, which will not be repeated here.
  • a new information element may be added to carry the measured value of the SFTD of the first cell and the second cell and the identification information of the second cell.
  • the master node may also use other feasible signaling formats to send the SFTD measurement values of the first cell and the second cell and the identification information of the second cell to the secondary node.
  • the measurement value of an SFTD (SFTD between the first cell and the second cell) and the identification information of the second cell corresponding to the SFTD may be collectively referred to as the measurement result of the SFTD.
  • the description is made by taking the master node sending a measurement result of SFTD to the slave node as an example.
  • the master node can also send multiple SFTD measurement results to the slave node.
  • the solution in the embodiment shown in FIG. 3 may be suitable for the master node to send the measurement result of each SFTD to the slave node.
  • step S320 includes: the master node sends the SFTD of the first cell and the multiple second cells to the secondary node, and the identification information of each second cell.
  • the identification information of each second cell includes the PCI and frequency information of the cell, or the CGI of the cell.
  • N is a positive integer.
  • the primary node sends to the secondary node: the SFTD of the first cell and the first cell, the identification information of the first cell; the SFTD of the first cell and the second cell, the SFTD of the second cell Identification information; ...; SFTD of the first cell and the Nth second cell, and the identification information of the Nth second cell.
  • the master node may send the SFTDs of the first cell and the multiple second cells and the identification information of the multiple second cells to the secondary node in the form of a list.
  • the multiple second cells may include any one or more of the following cells: the primary secondary cell (PSCell) of the secondary node, the neighboring cell, and the secondary cell (SCell) of the secondary node.
  • PSCell primary secondary cell
  • SCell secondary cell
  • the multiple second cells may include intra-frequency cells and/or inter-frequency cells.
  • the measurement values of different SFTDs are carried in different information elements.
  • the measurement value of the SFTD and the identification information of the second cell corresponding to the SFTD may be carried in the same information element .
  • the master node sends to the slave node:
  • the measured value of the SFTD (denoted as SFTD1) of the first cell and the cell a, and the identification information of the cell a;
  • the measured value of the SFTD (denoted as SFTD2) of the first cell and the cell b, and the identification information of the cell b;
  • the measured value of the SFTD (denoted as SFTD3) of the first cell and the cell c, and the identification information of the cell c.
  • the measured value of SFTD1 and the identification information of cell a are carried in the “MeasResultCellSFTD_1” cell
  • the measured value of SFTD2 and the identification information of cell b are carried in the “MeasResultCellSFTD_2” cell
  • the measured value of SFTD3 and the identification information of cell c It is carried in the "MeasResultCellSFTD_3" cell.
  • the "MeasResultCellSFTD_1" cell, the "MeasResultCellSFTD_2" cell and the "MeasResultCellSFTD_3" cell can all be located in the "MeasResultCellListSFTD” cell.
  • the structure of the "MeasResultCellListSFTD" cell is as follows.
  • MeasResultCellListSFTD:: SEQUENCE(SIZE(1..maxCellSFTD))OF MeasResultCellSFTD
  • MeasResultCellSFTD_1:: SEQUENCE ⁇ ... ⁇
  • MeasResultCellSFTD_2:: SEQUENCE ⁇ ... ⁇
  • MeasResultCellSFTD_3:: SEQUENCE ⁇ ... ⁇
  • the "MeasResultCellListSFTD” information element may be the "MeasResultCellListSFTD-NR” information element or the "MeasResultCellListSFTD-EUTRA" information element.
  • the measured values of different SFTDs are carried in different cells, and these different cells can be located in the same large cell.
  • the measurement value of the SFTD and the identification information of the second cell may be carried in the same information element, or the second cell At least part of the identification information of the cell may be carried in different information elements from the measured value of the SFTD.
  • the position of at least part of the identification information of the second cell in the corresponding cell corresponds to The position of the measured value of SFTD in the corresponding cell. That is, the position of the measured value of the SFTD in the corresponding cell corresponds to the position of the identification information of the second cell corresponding to the SFTD in the corresponding cell.
  • the identification information of the second cell includes PCI and frequency information
  • the identification information of cell a includes the PCI and frequency information of cell a
  • the identification information of cell b includes the PCI and frequency information of cell b
  • cell c The identification information includes the PCI and frequency information of cell c.
  • the measured value of SFTD1 and the PCI of cell a are carried in the “MeasResultCellSFTD_1” cell
  • the measured value of SFTD2 and the PCI of cell b are carried in the “MeasResultCellSFTD_2” cell
  • the measured value of SFTD3 and the PCI of cell c are carried in the “MeasResultCellSFTD_1” cell.
  • the frequency information of cell a, Frequency_1, the frequency information of cell b, Frequency_2, and the frequency information of cell c, Frequency_3, are carried in the "sftdFrequencyList" cell.
  • the "MeasResultCellSFTD_1" information element, the "MeasResultCellSFTD_2" information element and the “MeasResultCellSFTD_3" information element can all be located in the "MeasResultCellListSFTD” information element, as shown above.
  • the structure of the "sftdFrequencyList" cell is as follows.
  • the position (or sequence) of the frequency information of cell a, Frequency_1, frequency information of cell b, Frequency_2, and frequency information of cell c, in the "sftdFrequencyList” cell (or sequence), and the measured value of SFTD1 corresponds to one to one.
  • the "MeasResultCellListSFTD” information element corresponds to the first information element in the embodiment of the present application
  • the "sftdFrequencyList” information element corresponds to the second information element in the embodiment of the present application.
  • the identification information of the second cell includes the CGI
  • the identification information of the cell a includes the CGI of the cell a
  • the identification information of the cell b includes the CGI of the cell b
  • the identification information of the cell c includes the CGI of the cell c.
  • the measured value of SFTD1 is carried in the “MeasResultCellSFTD_1” cell
  • the measured value of SFTD2 is carried in the “MeasResultCellSFTD_2” cell
  • the measured value of SFTD3 is carried in the “MeasResultCellSFTD_3” cell.
  • CGI_1 of cell a, CGI_2 of cell b, and CGI_3 of cell c are carried in the "sftdCgiList" cell.
  • the "MeasResultCellSFTD_1" information element, the "MeasResultCellSFTD_2" information element and the “MeasResultCellSFTD_3" information element can all be located in the "MeasResultCellListSFTD” information element, as shown above.
  • the structure of the "sftdCgiList" cell is as follows.
  • the position (or sequence) of CGI_1 of cell a, CGI_2 of cell b, and CGI_3 of cell c in the "sftdCgiList" cell is the same as the measurement value of SFTD1, the measurement value of SFTD2, and the measurement of SFTD3.
  • the position (or sequence) of the value in the "MeasResultCellListSFTD" cell has a one-to-one correspondence.
  • the PCI information of cell a can also be carried in the "MeasResultCellSFTD_1" cell
  • the PCI information of cell b can also be carried in the "MeasResultCellSFTD_2" cell
  • the PCI information of cell c can also be carried in "MeasResultCellSFTD_3" cell.
  • the "MeasResultCellListSFTD” information element corresponds to the first information element in the embodiment of this application
  • the "sftdCgiList” information element corresponds to the second information element in the embodiment of this application.
  • the "MeasResultCellListSFTD” information element in the above example may be a "MeasResultCellListSFTD-NR” information element or a "MeasResultCellListSFTD-EUTRA" information element.
  • the "sftdFrequencyList” cell may be the “sftdFrequencyList-NR” cell or the "sftdFrequencyList-EUTRA” cell.
  • the "sftdCgiList” cell can be the "sftdCgiList-NR" cell or the "sftdCgiList-EUTRA" cell.
  • the embodiment shown in FIG. 3 sends the timing deviation between cells and the identification information of the non-primary cell (for example, the second cell in the embodiment of this application) corresponding to the timing deviation to the secondary node through the master node ,
  • the secondary node can identify the non-primary cell corresponding to the timing deviation.
  • Another embodiment of the present application provides a method for transmitting timing deviation.
  • the method includes: the primary node sends the SFTD of the first cell and the second cell, and the identification information of the first cell to the secondary node.
  • the description of the primary node, secondary node, first cell, and second cell is the same as the above description of primary node, secondary node, first cell, and second cell, and will not be described in detail here.
  • the first cell is the primary cell (PCell) of the master node.
  • the second cell is the primary and secondary cell (PSCell) of the secondary node.
  • the second cell is another cell.
  • the second cell is a secondary cell (SCell) of the secondary node.
  • the second cell is a neighboring cell, and the neighboring cell is an LTE cell or an NR cell.
  • the identification information of the first cell indicates information that can identify the first cell.
  • the identification information of the first cell is the cell identification or cell number of the first cell, or other information that can indicate the first cell.
  • the secondary node can learn the primary cell corresponding to the timing deviation (ie, the first cell in this embodiment) through the identification information of the first cell.
  • a field may be added to the cell configuration information (CG-ConfigInfo) to carry the identification information of the first cell.
  • the identification information of the first cell may be carried in the X2/Xn interface interaction message.
  • the identification information of the first cell may be carried in any of the following signaling: secondary node (SN) addition message, secondary node reconfiguration message, secondary node modification message, and secondary node release message.
  • SN secondary node
  • secondary node reconfiguration message secondary node modification message
  • secondary node release message secondary node release message
  • IE information element
  • the master node when the master node sends the SFTD of the first cell and the second cell to the secondary node, the master node also sends the identification information of the first cell to the secondary node, so that the secondary node can learn the timing deviation The corresponding primary cell (that is, the first cell in this embodiment).
  • the SFTD can be applied to other terminal devices.
  • the SFTD is applied to the measurement gap configuration or the discontinuous reception (DRX) configuration of other terminal devices.
  • the other terminal equipment mentioned here is different from the terminal equipment that currently establishes dual-connection communication with the primary node and the secondary node.
  • the master node may also send the identification information of the first cell to the secondary node.
  • step S310 the master node sends the SFTD of the first cell and the second cell, the identification information of the second cell, and the identification information of the first cell to the secondary node.
  • Another embodiment of the present application also provides a method for measuring timing deviation.
  • the method includes: the master node and the auxiliary node negotiate the timing deviation measurement configuration of the terminal device to ensure that the terminal device performs at most one timing deviation measurement task at the same time.
  • FIG. 4 is a schematic flowchart of a method for measuring timing deviation provided by another embodiment of the application. The method includes the following steps.
  • S410 The secondary node (SN) determines to configure the terminal equipment to measure the timing deviation between the cells.
  • S420 The secondary node sends a request message to the primary node (MN) for requesting that the secondary node configure the terminal device to measure the timing deviation between the cells.
  • MN primary node
  • the secondary node does not configure the terminal device to measure the timing deviation.
  • the embodiments of the present application can be implemented, and the secondary node configures the terminal device to measure the timing deviation between cells.
  • the secondary node configures the terminal device to measure the timing deviation through negotiation with the primary node.
  • the secondary node configures the terminal equipment to measure the timing deviation between cells with the consent of the primary node. Therefore, this application can enable the master node and the secondary node to configure the terminal device to measure SFTD through negotiation in a dual connectivity scenario, thereby avoiding the configuration of the SFTD measurement task for the terminal device from exceeding the capability of the terminal device.
  • the timing deviation between cells involved in the embodiments of the present application may be referred to as SFTD, for example.
  • SFTD timing deviation between cells
  • the timing deviation between cells is SFTD as an example for description.
  • the secondary node wants to configure the SFTD between the cells measured by the terminal device, which can be any of the following:
  • the SFTD between the cells that the secondary node wants to configure the terminal device to measure may also be the SFTD between the primary secondary cell (PSCell) and the secondary cell of the primary node.
  • PSCell primary secondary cell
  • Step S430 can be implemented in multiple ways.
  • the first embodiment is a first embodiment.
  • the master node When the master node agrees that the secondary node configures the terminal device to measure SFTD, it sends a response message to the secondary node indicating that it agrees to the configuration; when it does not agree that the secondary node configures the terminal device to measure SFTD, it sends the secondary node A response message indicating that the configuration is not agreed.
  • Step S430 includes: the secondary node configures the terminal device to measure the SFTD in the case that the secondary node receives the response message for indicating approval of the configuration sent by the primary node.
  • the secondary node does not configure the terminal device to measure the SFTD in the case of receiving the response message sent by the master node for indicating disapproval of configuration.
  • the master node sends a response message to the secondary node only when it does not agree that the secondary node configures the terminal equipment to measure SFTD, for example, the response message is used to indicate that the configuration is not agreed; when it agrees to the secondary node configures the terminal equipment to measure SFTD , Do not send messages to the secondary node.
  • Step S430 includes: the secondary node configures the terminal device to measure the SFTD in the case that the secondary node does not receive the response message sent by the primary node for the request message.
  • the terminal device when the secondary node receives the response message sent by the primary node for the request message, the terminal device is not configured to measure SFTD.
  • the third embodiment is the third embodiment.
  • the master node sends a response message to the secondary node only when it agrees that the secondary node configures the terminal device to measure SFTD, for example, the response message is used to indicate that the configuration is agreed; in the case of disagreeing that the secondary node configures the terminal device to measure SFTD, Do not send messages to secondary nodes.
  • Step S430 includes: when the secondary node receives the response message sent by the primary node for the request message, configure the terminal device to measure the SFTD.
  • the secondary node does not configure the terminal device to measure the SFTD if it does not receive the response message sent by the primary node for the request message.
  • the method may further include: the secondary node sends indication information to the primary node for indicating the cell of the SFTD to be tested.
  • the indication information may include the identification information of the cell of the SFTD to be tested.
  • the indication information may include the type of SFTD, which is used to indirectly indicate the cell of the SFTD to be tested.
  • the SFTD between the PCell and the PSCell is recorded as the first type SFTD
  • the SFTD between the PCell and the adjacent cell is recorded as the second type SFTD
  • the SFTD between the PSCell and the adjacent cell is recorded as the third type SFTD. If the indication information indicates the first type of SFTD, it indicates that the cells of the SFTD to be tested are PCell and PSCell. If the indication information indicates the second type of SFTD, it indicates that the cell of the SFTD to be tested is the PCell and neighboring cells.
  • the indication information may be carried in the request message in step S420. Or, the instruction information is not carried in the request message in step S420, for example, the instruction information is sent through other signaling.
  • the request message sent by the secondary node to the primary node in step S420 also carries SFTD measurement configuration information, and the SFTD measurement configuration information includes identification information indicating the cell of the SFTD to be tested.
  • the SFTD here means the SFTD that the secondary node requests to configure the terminal device to measure.
  • the identification information of the cell of the SFTD to be tested included in the measurement configuration information of the SFTD is the PCI and frequency information of the cell, or the CGI of the cell.
  • the master node can obtain the cell corresponding to the SFTD that the secondary node requests to measure.
  • the primary node When the primary node receives the request message from the secondary node, it may have obtained (or can obtain indirectly) the measurement result of the SFTD requested by the secondary node.
  • the secondary node requests to configure the SFTD measured by the terminal device as the SFTD of the PSCell and other cells, and the primary node has obtained the SFTD of the PCell and the PSCell and the SFTD of the PCell and the other cell when receiving the request message from the secondary node.
  • the other cells are, for example, neighboring cells. It should be understood that based on the SFTD of the PCell and the PSCell, and the SFTD of the PCell and the other cell, the master node can calculate the SFTD of the PSCell and other cells.
  • the master node sends information indicating the measurement result of the SFTD to the secondary node.
  • the secondary node receives the information indicating the measurement result of the SFTD sent by the primary node, the secondary node does not configure the terminal device to measure the SFTD. It is equivalent to that the master node sends information indicating the measurement result of the SFTD to the secondary node, which implicitly indicates that the secondary node does not agree to configure the terminal device to measure the SFTD.
  • the primary node sends information indicating the measurement result of the SFTD to the secondary node, including: the primary node sends the PCell to the secondary node SFTD with this other cell.
  • the secondary node can obtain the SFTD of the PSCell and other cells according to the PCell sent by the primary node and the SFTD of the other cell.
  • the secondary node may locally store the SFTD of the PCell and the PSCell. For example, the secondary node obtains the SFTD of the PCell and the PSCell during the historical interaction process with the primary node. In this case, the secondary node can calculate the SFTD of the PSCell and other cells according to the PCell and the SFTD of the other cell sent by the master node, and the locally stored SFTD of the PCell and the PSCell.
  • the primary node when it sends the SFTD of the PCell and the other cell to the secondary node, it may also send the SFTD of the PCell and the PSCell.
  • the secondary node can calculate the SFTD of the PSCell and other cells according to the SFTD of the PCell and the other cell sent by the master node, and the SFTD of the PCell and the PSCell.
  • the primary node sends information indicating the measurement result of the SFTD to the secondary node, including: the primary node directly sends the secondary node Send the SFTD of PSCell and other cells.
  • the SFTD of the PSCell and other cells can be calculated based on the SFTD of the PCell and the PSCell, and the SFTD of the PCell and the other cell.
  • the primary node may send a response message indicating that the configuration is not agreed to the secondary node.
  • the secondary node does not configure the terminal device to measure the SFTD when receiving the response message indicating that the configuration is not agreed.
  • step S420 may not be performed.
  • the master node may actively send an indication message to the secondary node whether to allow the secondary node to configure the terminal device to measure SFTD.
  • the secondary node may decide whether to configure the terminal device to measure SFTD according to the instruction message actively sent by the primary node, and may not send a request message to the primary node, that is, step S420 is not performed.
  • the secondary node configuring the terminal device to measure SFTD includes: the secondary node sends measurement configuration information of the SFTD to the terminal device, and the measurement configuration information includes the identification information of the cell of the SFTD to be tested. That is, the measurement configuration information enables the terminal device to know the SFTD of which cells need to be measured.
  • the terminal device measures the SFTD of the corresponding cell according to the SFTD measurement configuration information sent by the secondary node, and reports the SFTD measurement result to the secondary node.
  • the embodiment shown in FIG. 4 can enable the master node and the auxiliary node to configure the terminal device to measure SFTD through negotiation in a dual-connection scenario, thereby avoiding that the SFTD measurement task configured for the terminal device exceeds the capability of the terminal device.
  • Figure 4 describes the primary node and a secondary node as an example. It should be understood that in a multi-connection scenario including multiple secondary nodes, multiple secondary nodes may negotiate with the primary node to ensure that the terminal device can only perform at most one timing deviation measurement task at the same time.
  • FIG. 5 is a schematic flowchart of a method for measuring timing deviation provided by another embodiment of the application.
  • the execution subject of this method is a terminal device or a component (chip or circuit) that can be configured in the terminal device.
  • the method includes the following steps.
  • S510 Receive first measurement configuration information of the timing deviation between cells from the master node.
  • S520 Receive second measurement configuration information of the timing deviation between cells from the secondary node.
  • S530 Measure the timing deviation between the cells according to the first measurement configuration information and/or the second measurement configuration information.
  • the timing deviation between cells involved in the embodiments of the present application may be referred to as SFTD, for example.
  • SFTD timing deviation between cells
  • the timing deviation between cells is SFTD as an example for description.
  • step S510 there is no strict sequence restriction between step S510 and step S520.
  • the SFTD may be measured only according to the first measurement configuration information.
  • the SFTD is not measured according to the second measurement configuration information, or the second measurement configuration information is ignored.
  • the SFTD may be measured only according to the second measurement configuration information.
  • the SFTD is not measured according to the first measurement configuration information, or the first measurement configuration information is ignored.
  • step S530 first measure the SFTD between cells according to the first measurement configuration information, and after measuring the SFTD between the cells according to the first measurement configuration information, measure the SFTD between the cells according to the second measurement configuration information. SFTD.
  • step S530 first measure the SFTD between the cells according to the second measurement configuration information. After measuring the SFTD between the cells according to the second measurement configuration information, measure the SFTD between the cells according to the first measurement configuration information. SFTD.
  • the embodiments of the present application can prevent the SFTD measurement task configured for the terminal device from exceeding the capability of the terminal device.
  • the methods and operations implemented by the terminal device in the foregoing method embodiments can also be implemented by components (such as chips or circuits) that can be used in the terminal device.
  • the methods and operations implemented by the network device in the foregoing method embodiments Operations can also be implemented by components (such as chips or circuits) that can be used in network devices.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software-driven hardware depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of protection of this application.
  • the embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules based on the foregoing method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one process.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other feasible division methods in actual implementation. The following is an example of dividing each function module corresponding to each function.
  • FIG. 6 is a schematic block diagram of a communication device 600 according to an embodiment of the application.
  • the communication device 600 includes a transceiver unit 610 and a processing unit 620.
  • the transceiver unit 610 can communicate with the outside, and the processing unit 610 is used for data processing.
  • the transceiving unit 610 may also be referred to as a communication interface or a communication unit.
  • the communication device 600 may further include a storage unit, and the storage unit may be used to store instructions or data, and the processing unit 620 may read the instructions or data in the storage unit.
  • the communication device 600 may be used to perform the actions performed by the terminal device in the above method embodiment.
  • the communication device 600 may be a terminal device or a component configurable in the terminal device, and the transceiver unit 610 is used to perform the above method.
  • the processing unit 620 is configured to perform the processing-related operations on the terminal device side in the above method embodiment for the operations related to receiving and sending on the terminal device side.
  • the communication device 600 can be used to perform the actions performed by the network device (primary node or secondary node) in the above method embodiment.
  • the communication device 600 can be a network device or a component that can be configured in a network device.
  • the transceiving unit 610 is configured to perform operations related to transmission and reception on the network device side in the above method embodiment
  • the processing unit 620 is configured to perform processing related operations on the network device side in the above method embodiment.
  • the communication device 600 is used to perform the actions performed by the master node in the embodiment shown in FIG. 3 above, and the processing unit 620 is used to obtain the measurement value of the timing deviation between the first cell and the second cell;
  • the unit 610 is configured to send the measured value of the timing deviation and the identification information of the second cell to the secondary node, where the first cell is the primary cell of the primary node, the second cell is the primary and secondary cell of the secondary node, or the second cell
  • the cell is another cell, and the identification information of the second cell includes the PCI and frequency information of the second cell, or the identification information of the second cell includes the CGI of the second cell.
  • the timing deviation is SFTD.
  • the measured value of the timing deviation and the identification information of the second cell are carried in the same information element.
  • the identification information of the second cell includes the physical cell identification PCI of the second cell and frequency point information
  • the measured value of the timing deviation and the PCI of the second cell are carried in the first information element
  • the second cell The frequency information of the second cell is carried in the second cell, where the frequency information of the second cell is at the position of the second cell and the measurement value of the timing deviation or the position of the PCI of the second cell in the first cell one by one correspond.
  • the identification information of the second cell includes the cell global identity CGI of the second cell
  • the measurement value of the timing deviation is carried in the first information element
  • the CGI of the second cell is carried in the second information element
  • the position of the CGI of the second cell in the second cell corresponds to the position of the measurement value of the timing deviation in the first cell in a one-to-one correspondence.
  • the communication device 600 is used to perform the actions performed by the secondary node in the embodiment shown in FIG. 3 above, and the transceiver unit 610 is used to receive the measurement of the timing deviation between the first cell and the second cell from the primary node Value, and identification information of the second cell; the processing unit 620 is configured to learn the timing deviation between the first cell and the second cell, where the first cell is the primary cell of the primary node, and the second cell is the primary and secondary cell of the secondary node Or, the second cell is another cell, and the identification information of the second cell includes the PCI and frequency information of the second cell, or the identification information of the second cell includes the CGI of the second cell.
  • the timing deviation is SFTD.
  • the measured value of the timing deviation and the identification information of the second cell are carried in the same information element.
  • the identification information of the second cell includes the physical cell identification PCI of the second cell and frequency point information
  • the measured value of the timing deviation and the PCI of the second cell are carried in the first information element
  • the second cell The frequency information of the second cell is carried in the second cell, where the frequency information of the second cell is at the position of the second cell and the measurement value of the timing deviation or the position of the PCI of the second cell in the first cell one by one correspond.
  • the identification information of the second cell includes the cell global identity CGI of the second cell
  • the measurement value of the timing deviation is carried in the first information element
  • the CGI of the second cell is carried in the second information element
  • the position of the CGI of the second cell in the second cell corresponds to the position of the measurement value of the timing deviation in the first cell in a one-to-one correspondence.
  • the processing unit 620 is further configured to perform related processing based on the SFTD.
  • SFTD can be used for DRX alignment or measurement gap identification.
  • the communication device 600 is used to perform the actions performed by the secondary node in the embodiment shown in FIG. 4, and the processing unit 620 is used to: determine the configuration terminal equipment to measure the timing deviation between the cells; If agreed, configure the terminal equipment to measure the timing deviation.
  • the timing deviation is SFTD.
  • the transceiver unit 610 is configured to send a request message to the master node for requesting configuration of the terminal device to measure the timing deviation; the processing unit 620 is configured to: the transceiver unit 610 receives a response from the master node indicating that the configuration is approved In the case of a message, the secondary node configures the terminal device to measure the timing deviation; or when the transceiver unit 610 does not receive a response message from the primary node to the request message, the secondary node configures the terminal device to measure the timing deviation.
  • the request message also carries the measurement configuration information of the timing deviation, and the measurement configuration information of the timing deviation includes the identification information of the cell corresponding to the timing deviation; the processing unit 620 is configured to, when the transceiver unit 610 receives the user data sent by the master node In the case of the information indicating the measurement result of the timing deviation, the secondary node does not configure the terminal device to measure the timing deviation.
  • the cells corresponding to the timing deviation include the primary and secondary cells of the secondary node and other cells; wherein the information used to indicate the measurement result of the timing deviation sent by the primary node includes: the timing deviation between the primary cell and other cells; or the primary and secondary cells The timing deviation between a cell and other cells.
  • the identification information of the cell corresponding to the timing deviation includes: the PCI and frequency information of the cell; or the CGI of the cell.
  • the communication device 600 is used to perform the actions performed by the master node in the embodiment shown in FIG. 4, and the transceiver unit 610 is used to receive request messages from the secondary nodes, and the request messages are used to request the secondary nodes to configure the terminal.
  • the device measures the timing deviation between cells; the processing unit 620 is configured to determine whether to agree to the secondary node to configure the terminal device to measure the timing deviation according to the request message; the transceiver unit 610 is also configured to send to the secondary node a message indicating approval or disapproval of configuration Response message.
  • the timing deviation is SFTD.
  • the request message also carries measurement configuration information of the timing deviation, and the measurement configuration information of the timing deviation includes identification information of the cell corresponding to the timing deviation; the transceiver unit 610 is further configured to send information indicating the timing deviation to the secondary node The measurement result information indicates that the secondary node does not agree to configure the terminal equipment to measure the timing deviation.
  • the cells corresponding to the timing deviation include the primary and secondary cells of the secondary node and other cells; wherein the information used to indicate the measurement result of the timing deviation sent by the primary node includes: the timing deviation between the primary cell and other cells; or the primary and secondary cells The timing deviation between a cell and other cells.
  • the identification information of the cell corresponding to the timing deviation includes: the PCI and frequency information of the cell; or the CGI of the cell.
  • the communication device 600 is used to perform the actions performed by the terminal device in the embodiment shown in FIG. 4, or the method in the embodiment shown in FIG. 5, the transceiver unit 610 is used to: receive the cell from the master node The first measurement configuration information of the timing deviation between the cells; the second measurement configuration information of the timing deviation between the cells is received from the secondary node; the processing unit 620 is configured to, according to the first measurement configuration information and/or the second measurement configuration information, Measure the timing deviation between cells.
  • the timing deviation is SFTD.
  • the processing unit 620 is configured to: measure the timing deviation between the cells according to the first measurement configuration information; or measure the timing deviation between the cells according to the second measurement configuration information; or after completing the measurement of the cell according to the first measurement configuration information After the timing deviation between the cells, the timing deviation between the cells is measured according to the second measurement configuration information; or after the timing deviation between the cells is measured according to the second measurement configuration information, the timing deviation between the cells is measured according to the first measurement configuration information. Timing deviation.
  • the processing unit 620 in the above embodiment may be implemented by a processor or a processor-related circuit.
  • the transceiver unit 610 may be implemented by a transceiver or a transceiver-related circuit.
  • the transceiving unit 610 may also be referred to as a communication unit or a communication interface.
  • the storage unit can be realized by a memory.
  • an embodiment of the present application also provides a communication device 700.
  • the communication device 700 includes a processor 710, which is coupled to a memory 720, the memory 720 is used to store computer programs or instructions or data, and the processor 710 is used to execute the computer programs or instructions or data stored in the memory 720, so that the above method The method in the embodiment is executed.
  • the communication device 700 includes one or more processors 710.
  • the communication device 700 may further include a memory 720.
  • the memory 720 included in the communication device 700 may be one or more.
  • the memory 720 may be integrated with the processor 710 or provided separately.
  • the communication device 700 may further include a transceiver 730, and the transceiver 730 is used for receiving and/or sending signals.
  • the processor 710 is configured to control the transceiver 730 to receive and/or send signals.
  • the communication device 700 is used to implement the operations performed by the terminal device in the foregoing method embodiments.
  • the processor 710 is used to implement the processing-related operations performed by the terminal device in the above method embodiment
  • the transceiver 730 is used to implement the transceiving-related operations performed by the terminal device in the above method embodiment.
  • the communication device 700 is used to implement the operations performed by the network device (primary node or secondary node) in the above method embodiment.
  • the processor 710 is used to implement the processing-related operations performed by the network device in the above method embodiment
  • the transceiver 730 is used to implement the transceiving-related operations performed by the network device in the above method embodiment.
  • the embodiment of the present application also provides a communication device 800, which may be a terminal device or a chip.
  • the communication device 800 can be used to perform operations performed by the terminal device in the foregoing method embodiments.
  • FIG. 8 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 8 only one memory and processor are shown in FIG. 8. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 810 and a processing unit 820.
  • the transceiver unit 810 may also be referred to as a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit 820 may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 810 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 810 can be regarded as the sending unit, that is, the transceiver unit 810 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, receiver, or receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • the processing unit 820 is used to perform processing actions on the terminal device side in FIG. 4, for example, to perform SFTD measurement according to the measurement configuration information sent by the secondary node; the transceiver unit 810 is used to perform the terminal device in FIG. 4 The device receives the measurement configuration information of the SFTD of the secondary node.
  • the processing unit 820 is used to perform step S530 in FIG. 5; the transceiving unit 810 is used to perform the receiving operations in step S510 and step S520 in FIG.
  • FIG. 8 is only an example and not a limitation, and the foregoing terminal device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 8.
  • the chip When the communication device 800 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a communication device 900, which may be a network device or a chip.
  • the communication device 900 can be used to perform operations performed by a network device (primary node or secondary node) in the foregoing method embodiments.
  • FIG. 9 shows a simplified schematic diagram of the base station structure.
  • the base station includes part 910 and part 920.
  • the 910 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 920 part is mainly used for baseband processing and control of the base station.
  • the part 910 can usually be called a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the part 920 is usually the control center of the base station, and may generally be referred to as a processing unit, which is used to control the base station to perform the processing operations on the network device side in the foregoing method embodiments.
  • the transceiver unit of part 910 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency circuit, and the radio frequency circuit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in part 910 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 910 includes the receiving unit and the sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • Part 920 may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, the boards can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
  • the network device is the master node
  • the transceiver unit in part 910 is used to perform the sending operation in step S320 in FIG. 3, and/or the transceiver unit in part 910 is also used to perform the implementation shown in FIG. 3.
  • other steps related to receiving and sending are executed by the master node; part 920 is used to execute step S310 in FIG. 3, and/or part 920 is also used to execute processing-related steps executed by the master node in the embodiment shown in FIG.
  • the network device is the master node
  • the transceiver unit of part 910 is used to perform the receiving operation in step S420 in FIG. 4, and/or the transceiver unit of part 910 is also used to perform the operation shown in FIG.
  • the master node performs other steps related to sending and receiving, for example, the master node sends a response message for the request message to the slave node; part 920 is used to perform processing related to the processing performed by the master node in the embodiment shown in FIG. 4 step.
  • the network device is the master node, and the transceiving unit of part 910 is used to perform the sending operation in step S510 in FIG. 5; the part 920 is used to perform the master node in the embodiment shown in FIG.
  • the executed processing-related steps for example, generating first measurement configuration information for measuring SFTD for the terminal device.
  • the network device is a secondary node
  • the transceiver unit of part 910 is used to perform the receiving operation in step S320 in FIG. 3, and/or the transceiver unit of part 910 is also used to perform the receiving operation shown in FIG.
  • the secondary node performs other transceiving-related steps; part 920 is used to perform the processing-related steps performed by the secondary node in the embodiment shown in FIG. 3, for example, obtaining the first cell and the first cell based on the information received from the primary node The timing deviation between the second cells.
  • the network device is a secondary node
  • the transceiver unit of part 910 is used to perform the sending operation in step S420 in FIG. 4 and the sending operation of the secondary node in step S430 (for example, sending to the terminal device).
  • SFTD measurement configuration information and/or the transceiver unit of part 910 is also used to perform other transceiver related steps performed by the secondary node in the embodiment shown in FIG. 4;
  • part 920 is used to perform step S410 in FIG. 4, and /Or the processing unit of part 920 is also used to perform processing related steps performed by the auxiliary node in the embodiment shown in FIG. 4.
  • the network device is a secondary node
  • the transceiving unit of part 910 is used to perform the sending operation in step S520 in FIG. 5; and part 920 is used to perform the secondary node in the embodiment shown in FIG.
  • the processing-related steps performed are, for example, generating second measurement configuration information for the terminal device to measure SFTD.
  • FIG. 9 is only an example and not a limitation, and the foregoing network device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 9.
  • the chip When the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a computer-readable storage medium on which is stored computer instructions for implementing the method executed by the terminal device in the above method embodiment or the method executed by the network device (primary node or secondary node).
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the terminal device in the above method embodiments or the method executed by the network device (primary node or secondary node).
  • the embodiments of the present application also provide a computer program product containing instructions, which when executed by a computer, cause the computer to implement the method executed by the terminal device in the foregoing method embodiments, or executed by the network device (primary node or secondary node) method.
  • An embodiment of the present application also provides a communication system, which includes the primary node, secondary node, and terminal equipment in the above embodiments.
  • the terminal device can establish a wireless link with the primary node and the secondary node through dual connection technology.
  • the communication system includes: the secondary node, the primary node, and the terminal device in the embodiment described above with reference to FIG. 3.
  • the communication system includes: the secondary node, the primary node, and the terminal device in the embodiment described above with reference to FIG. 4.
  • the communication system includes: the secondary node, the primary node, and the terminal device in the embodiment described above with reference to FIG. 5.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory).
  • the operating system at the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer can include applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of this application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of this application, as long as it can run a program that records the code of the method provided in the embodiment of this application to follow the method provided in the embodiment of this application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.
  • Computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs), etc.) ), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • magnetic storage devices for example, hard disks, floppy disks, or tapes, etc.
  • optical disks for example, compact discs (CDs), digital versatile discs (digital versatile discs, DVDs), etc.
  • smart cards and flash memory devices for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.
  • the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to: wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • processors mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), or may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), or application specific integrated circuits ( application specific integrated circuit (ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • CPU central processing unit
  • DSP digital signal processors
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM).
  • RAM can be used as an external cache.
  • RAM can include the following various forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM) , Double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and Direct RAM Bus RAM (DR RAM).
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous DRAM
  • Double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Direct RAM Bus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer may be a personal computer, a server, or a network device.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.
  • the medium can include but is not limited to: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请提供传输定时偏差的方法与装置，该方法包括：主节点获取第一小区与第二小区的定时偏差的测量值；主节点向辅节点发送定时偏差的测量值，以及第二小区的标识信息，其中，第一小区为主节点的主小区，第二小区为辅节点的主辅小区，或者，第二小区为其他小区，第二小区的标识信息包括第二小区的物理小区标识与频点信息，或者，第二小区的标识信息包括第二小区的小区全球标识。通过主节点向辅节点发送小区间的定时偏差，以及该定时偏差对应的小区的标识信息，在一定程度上可以使辅节点准确识别该定时偏差对应的小区。

Description

传输定时偏差的方法与装置
本申请要求于2019年8月14日提交中国知识产权局、申请号为201910750482.5、申请名称为“传输定时偏差的方法与装置”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
本申请涉及通信领域，并具体涉及一种传输定时偏差的方法与装置。
背景技术
双连接(dual-connectivity，DC)技术指的是，一个终端设备可以与两个基站建立无线链路。其中，两个基站中包括一个主站，其余基站为辅站。主站可以配置终端设备测量小区之间的定时偏差，并向辅站发送定时偏差测量结果。例如，该定时偏差为系统帧号和帧定时偏差(system frame number(SFN)and frame timing difference，SFTD)。
当前技术中，主站向辅站发送定时偏差测量结果的方法为，向辅站发送定时偏差以及该定时偏差对应小区的物理小区标识(physical cell identifier，PCI)。
在主站向辅站发送多个定时偏差的测量结果的情况下，现有方法可能使作为接收端的辅站无法正确识别多个定时偏差各自对应的小区。
发明内容
本申请提供一种传输定时偏差的方法与装置，在双连接通信场景中，在一定程度上可以使辅节点准确识别SFTD对应的小区。
第一方面，提供一种传输定时偏差的方法。该方法由可以充当主节点的网络设备实现，或者由该配置于该网络设备中的芯片或电路实现。该方法包括：主节点获取第一小区与第二小区的定时偏差的测量值；主节点向辅节点发送定时偏差的测量值，以及第二小区的标识信息，其中，第一小区为主节点的主小区，第二小区为辅节点的主辅小区，或者，第二小区为其他小区，第二小区的标识信息包括第二小区的物理小区标识(physical cell identifier，PCI)与频点信息，或者，第二小区的标识信息包括第二小区的小区全球标识(cell global identifier，CGI)。
在本申请中，通过主节点向辅节点发送第一小区与第二小区的定时偏差，以及第二小区的PCI与频点信息，因此，可以在一定程度上使得辅节点识别该定时偏差对应的第二小区。或者，通过主节点向辅节点发送第一小区与第二小区的定时偏差，以及第二小区的CGI，因此，可以使得辅节点识别该定时偏差对应的第二小区。
在本申请中，通过主节点向辅节点发送小区间的定时偏差，以及该定时偏差对应的小区的标识信息，在一定程度上可以使辅节点识别该定时偏差对应的小区。
第二方面，提供一种传输定时偏差的方法。该方法由可以充当辅节点的网络设备实现， 或者由该配置于该网络设备中的芯片或电路实现。该方法包括：辅节点从主节点接收第一小区与第二小区的定时偏差的测量值，以及第二小区的标识信息；辅节点获知第一小区与第二小区的定时偏差，其中，第一小区为主节点的主小区，第二小区为辅节点的主辅小区，或者，第二小区为其他小区，第二小区的标识信息包括PCI与频点信息，或者，第二小区的标识信息包括第二小区的CGI。
在本申请中，通过主节点向辅节点发送小区间的定时偏差，以及该定时偏差对应的小区的标识信息，在一定程度上可以使辅节点识别该定时偏差对应的小区。
在第一方面或第二方面中，例如，定时偏差为系统帧号和帧定时偏差(system frame number(SFN)and frame timing difference，SFTD)。
应理解，辅节点(或主节点)获得第一小区与第二小区之间的SFTD之后，可以基于该SFTD进行相关处理。例如，SFTD可以用于非连续接收(Discontinuous Reception，DRX)的对齐，或者，测量间隔(measurement gap)的识别(for the purpose of DRX alignment and identification of measurement gap)。
结合第一方面或第二方面，在一些可能的实现方式中，定时偏差的测量值与第二小区的标识信息携带在同一个信元中。
结合第一方面或第二方面，在一些可能的实现方式中，在第二小区的标识信息包括第二小区的物理小区标识PCI与频点信息的情况下，定时偏差的测量值与第二小区的PCI携带在第一信元中，第二小区的频点信息携带在第二信元中，其中，第二小区的频点信息在第二信元的位置与定时偏差的测量值或第二小区的PCI在第一信元中的位置一一对应。
第二小区的频点信息在第二信元的位置与SFTD的测量值在第一信元中的位置一一对应，表示，可以根据SFTD的测量值在第一信元中的位置可以确定该SFTD对应的第二小区的频点信息在第二信元中的位置，或者，可以根据第二小区的频点信息在第二信元中的位置可以确定该第二小区对应的SFTD的测量值在第一信元中的位置。
可以理解到，虽然第一小区与第二小区的SFTD的测量值和第二小区的PCI，与第二小区的频点信息携带在不同信元中，但二者之间具有对应关系。
应理解，辅节点接收到主节点发送的第一信元与第二信元之后，可以获知第二信元中的某个小区的频点信息与第一信元中的某个SFTD的测量值是对应的。
结合第一方面或第二方面，在一些可能的实现方式中，在第二小区的标识信息包括第二小区的小区全球标识CGI的情况下，定时偏差的测量值携带在第一信元中，第二小区的CGI携带在第二信元中，其中，第二小区的CGI在第二信元的位置与定时偏差的测量值在第一信元中的位置一一对应。
第二小区的CGI在第二信元的位置与SFTD的测量值在第一信元中的位置一一对应，表示，可以根据SFTD的测量值在第一信元中的位置可以确定该SFTD对应的第二小区的CGI在第二信元中的位置，或者，可以根据第二小区的CGI在第二信元中的位置可以确定该第二小区对应的SFTD的测量值在第一信元中的位置。
可以理解到，虽然第一小区与第二小区的SFTD的测量值和第二小区的PCI，与第二小区的CGI携带在不同信元中，但二者之间具有对应关系。
应理解，辅节点接收到主节点发送的第一信元与第二信元之后，可以获知第二信元中的某个小区的CGI与第一信元中的某个SFTD的测量值是对应的。
结合第一方面或第二方面，在一些可能的实现方式中，主节点向辅节点发送定时偏差的测量值，以及第二小区的标识信息，包括：主节点向辅节点发送第一小区分别与多个第二小区的SFTD，以及每个第二小区的标识信息。其中，每个第二小区的标识信息包括该小区的PCI与频点信息，或者，该小区的CGI。其中，对于每一个SFTD，该SFTD的测量值与第二小区的标识信息可以携带在同一信元中，或者，第二小区的标识信息中的至少部分信息可以与该SFTD的测量值携带在不同信元中。
其中，在第二小区的标识信息中的至少部分信息与该SFTD的测量值携带在不同信元中的情况下，第二小区的标识信息中的至少部分信息在相应信元中的位置对应于SFTD的测量值在相应信元中的位置，即该SFTD的测量值在相应信元中的位置与该SFTD对应的第二小区的标识信息在相应信元中的位置一一对应。
基于上述描述，在第一方面或第二方面提供的方法中，通过主节点向辅节点发送小区间的定时偏差，以及该定时偏差对应的小区(非主小区)的标识信息，可以使得辅节点识别该定时偏差对应的小区(非主小区)。
本申请还提供一种用于测量定时偏差的方法。在该方法中，辅节点与主节点协商对终端设备的定时偏差测量配置，以保证终端设备在同一时间进行一个定时偏差测量任务。
辅节点与主节点的协商方式可以有多种，只要可以保证终端设备在同一时间只进行一个定时偏差测量任务即可。
下文第三方面、第四方面与第五方面分别从辅节点、主节点与终端设备的角度进行描述。
第三方面，提供一种用于测量定时偏差的方法。该方法由可以充当辅节点的网络设备实现，或者由该配置于该网络设备中的芯片或电路实现。该方法包括：辅节点确定配置终端设备测量小区之间的定时偏差；在主节点同意的情况下，辅节点配置终端设备测量定时偏差。
例如，定时偏差为SFTD。
本申请可以实现，由辅节点配置终端设备测量小区之间的定时偏差。
此外，辅节点通过与主节点的协商的方式，来配置终端设备测量定时偏差。辅节点是在主节点同意的情况下配置终端设备测量小区间的定时偏差。因此，本申请可以使得在双连接场景下，主节点与辅节点能够通过协商的方式，配置终端设备测量SFTD，从而可以避免给终端设备配置的SFTD测量任务超过终端设备的能力。
结合第三方面，在第三方面的一些可能的实现方式中，该方法还包括：辅节点向主节点发送请求消息，用于请求配置终端设备测量定时偏差；其中，在主节点同意的情况下，辅节点配置终端设备测量定时偏差，包括：在接收到主节点发送的用于指示同意配置的响应消息的情况下，辅节点配置终端设备测量定时偏差；或在未收到主节点针对请求消息的响应消息的情况下，辅节点配置终端设备测量定时偏差。
结合第三方面，在第三方面的一些可能的实现方式中，请求消息中还携带定时偏差的测量配置信息，定时偏差的测量配置信息中包括定时偏差对应的小区的标识信息；该方法还包括：在接收到主节点发送的用于指示定时偏差的测量结果的信息的情况下，辅节点不配置终端设备测量定时偏差。
结合第三方面，在第三方面的一些可能的实现方式中，定时偏差对应的小区包括辅节 点的主辅小区与其它小区；其中，主节点发送的用于指示定时偏差的测量结果的信息包括：主小区与其它小区的定时偏差；或主辅小区与其它小区的定时偏差。
结合第三方面，在第三方面的一些可能的实现方式中，定时偏差对应的小区的标识信息包括：小区的PCI与频点信息；或小区的CGI。
第四方面，提供一种用于测量定时偏差的方法。该方法由可以充当主节点的网络设备实现，或者由该配置于该网络设备中的芯片或电路实现。该方法包括：主节点与辅节点协商对终端设备的定时偏差测量配置，以保证终端设备在同一时间进行一个定时偏差测量任务。
主节点与辅节点的协商方式可以有多种，只要可以保证终端设备在同一时间只进行一个定时偏差测量任务即可。
结合第四方面，在第四方面的一些可能的实现方式中，主节点与辅节点协商对终端设备的定时偏差测量配置，包括：主节点从辅节点接收请求消息，请求消息用于请求辅节点配置终端设备测量小区之间的定时偏差；主节点向辅节点发送用于指示同意或不同意配置的响应消息。
例如，定时偏差为SFTD。
本申请可以实现，由辅节点配置终端设备测量小区之间的定时偏差。
此外，辅节点通过与主节点的协商的方式，来配置终端设备测量定时偏差。辅节点是在主节点同意的情况下配置终端设备测量小区间的定时偏差。因此，本申请可以使得在双连接场景下，主节点与辅节点能够通过协商的方式，配置终端设备测量SFTD，从而可以避免给终端设备配置的SFTD测量任务超过终端设备的能力。
结合第四方面，在第四方面的一些可能的实现方式中，请求消息中还携带定时偏差的测量配置信息，定时偏差的测量配置信息中包括定时偏差对应的小区的标识信息；该方法还包括：主节点向辅节点发送用于指示定时偏差的测量结果的信息，表示不同意辅节点配置终端设备测量定时偏差。
结合第四方面，在第四方面的一些可能的实现方式中，定时偏差对应的小区包括辅节点的主辅小区与其它小区；其中，主节点发送的用于指示定时偏差的测量结果的信息包括：主小区与其它小区的定时偏差；或主辅小区与其它小区的定时偏差。
结合第四方面，在第四方面的一些可能的实现方式中，定时偏差对应的小区的标识信息包括：小区的PCI与频点信息；或小区的CGI。
基于上述描述，第三方面或第四方面提供的方法，可以使得在双连接场景下，主节点与辅节点能够通过协商的方式，配置终端设备测量SFTD，从而可以避免给终端设备配置的SFTD测量任务超过终端设备的能力。
第五方面，提供一种用于测量定时偏差的方法。该方法由可以终端设备实现，或者由该配置于该终端设备中的芯片或电路实现。该方法包括：从主节点接收小区之间的定时偏差的第一测量配置信息；从辅节点接收小区之间的定时偏差的第二测量配置信息；根据第一测量配置信息和/或第二测量配置信息，测量小区之间的定时偏差。
例如，定时偏差为SFTD。
本申请可以避免为终端设备配置的SFTD测量任务超过终端设备的能力。
结合第五方面，在第五方面的一些可能的实现方式中，根据第一测量配置信息和/或 第二测量配置信息，测量小区之间的定时偏差，包括：根据第一测量配置信息测量小区之间的定时偏差；或根据第二测量配置信息测量小区之间的定时偏差；或在完成根据第一测量配置信息测量小区之间的定时偏差之后，根据第二测量配置信息测量小区之间的定时偏差；或在完成根据第二测量配置信息测量小区之间的定时偏差之后，根据第一测量配置信息测量小区之间的定时偏差。
基于上述描述，第五方面提供的方法，可以避免为终端设备配置的SFTD测量任务超过终端设备的能力。
第六方面，提供一种通信装置，该通信装置可以用于执行第一方面、第二方面、第三方面、第四方面或第五方面中的方法。
可选地，该通信装置可以包括用于执行第一方面、第二方面、第三方面、第四方面或第五方面中的方法的模块。
第七方面，提供一种通信装置，该通信装置包括处理器，该处理器与存储器耦合，该存储器用于存储计算机程序或指令，处理器用于执行存储器存储的计算机程序或指令，使得第一方面、第二方面、第三方面、第四方面或第五方面中的方法被执行。
例如，处理器用于执行存储器存储的计算机程序或指令，使得该通信装置执行第一方面、第二方面、第三方面、第四方面或第五方面中的方法。
可选地，该通信装置包括的处理器为一个或多个。
可选地，该通信装置中还可以包括与处理器耦合的存储器。
可选地，该通信装置包括的存储器可以为一个或多个。
可选地，该存储器可以与该处理器集成在一起，或者分离设置。
可选地，该通信装置中还可以包括收发器。
第八方面，提供一种芯片，该芯片包括处理模块与通信接口，处理模块用于控制所述通信接口与外部进行通信，处理模块还用于实现第一方面、第二方面、第三方面、第四方面或第五方面中的方法。
例如，处理模块为处理器。
第九方面，提供一种计算机可读存储介质，其上存储有用于实现第一方面、第二方面、第三方面、第四方面或第五方面中的方法的计算机程序(也可称为指令或代码)。
例如，该计算机程序被计算机执行时，使得该计算机可以执行第一方面、第二方面、第三方面、第四方面或第五方面中的方法。该计算机可以为通信装置。
第十方面，提供一种计算机程序产品，该计算机程序产品包括计算机程序(也可称为指令或代码)，该计算机程序被计算机执行时使得所述计算机实现第一方面、第二方面、第三方面、第四方面或第五方面中的方法。该计算机可以为通信装置。
第十一方面，提供一种通信系统，包括第六方面提供的用于执行第一方面提供的方法的通信装置、第六方面提供的用于执行第二方面提供的方法的通信装置，以及终端设备。
其中，第六方面提供的用于执行第一方面提供的方法的通信装置可以称为主节点，第六方面提供的用于执行第二方面提供的方法的通信装置可以称为辅节点。
在该通信系统中，终端设备可以通过双连接技术，与主节点和辅节点建立无线链路。
第十二方面，提供一种通信系统，包括第六方面提供的用于执行第三方面提供的方法的通信装置、第六方面提供的用于执行第四方面提供的方法的通信装置，以及第六方面提 供的用于执行第五方面提供的方法的通信装置。
其中，第六方面提供的用于执行第三方面提供的方法的通信装置可以称为辅节点，第六方面提供的用于执行第四方面提供的方法的通信装置可以称为主节点，第六方面提供的用于执行第五方面提供的方法的通信装置可以称为终端设备。
在该通信系统中，终端设备可以通过双连接技术，与主节点和辅节点建立无线链路。
基于上述描述，在第一方面或第二方面提供的方法中，通过主节点向辅节点发送小区间的定时偏差，以及该定时偏差对应的小区(非主小区)的标识信息，可以使得辅节点识别该定时偏差对应的小区(非主小区)。
第三方面、第四方面或第五方面提供的方法，可以避免为终端设备配置的SFTD测量任务超过终端设备的能力。
附图说明
图1为本申请实施例可以应用的无线通信系统的示意性架构图；
图2为双连接通信场景的示意图；
图3为本申请实施例提供的传输定时偏差的方法的示意性流程图；
图4为本申请另一实施例提供的用于测量定时偏差的方法的示意性流程图；
图5为本申请再一实施例提供的用于测量定时偏差的方法的示意性流程图；
图6为本申请实施例提供的通信装置的示意性框图；
图7为本申请实施例提供的另一通信装置的示意性框图；
图8为本申请实施例提供的终端设备的示意性框图；
图9为本申请实施例提供的网络设备的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
为了更好地理解本申请实施例，下面先介绍本申请实施例可适用的通信系统，以及涉及到的概念。
本申请实施例可以应用于各种通信系统，例如，长期演进(long term evolution，LTE)系统、第五代移动通信(the 5th Generation，5G)系统、机器与机器通信(machine to machine，M2M)系统、或者未来演进的其它通信系统。其中，5G的无线空口技术称为新空口(new radio，NR)，5G系统也可称为NR系统。
图1为本申请实施例可以应用的无线通信系统100的示意性架构图。如图1所示，无线通信系统100中可以包括一个或多个网络设备110，一个或多个终端设备120，以及核心网130。一个或多个网络设备110构成无线接入网(radio access network，RAN)(图1中未示出)。
网络设备110可以用于与一个或多个终端设备120进行通信，也可以用于与一个或多个具有部分终端设备功能的基站进行通信。可选地，网络设备110可用于在网络设备控制 器(图1中未示出)的控制下，通过一个或多个天线与终端设备120通信。其中，该网络设备控制器可以是核心网130的一部分，也可以集成到网络设备110中。
例如，网络设备110可用于通过回程(backhaul)接口150(如S1接口)向核心网130传输控制信息或者用户数据。再例如，网络设备110之间可以通过非理想回传(non-ideal backhaul)接口140(如X2接口)，直接或间接地通信。
网络设备110可以称为基站。基站可能有多种形式，例如，宏基站、微基站、中继站或接入点等。例如，网络设备110可以是LTE系统中的演进型基站(evolved Node B，eNB)，或5G系统，或者传输接收点(transmission reception point，TRP)。例如，在图1中，有些网络设备110是eNB，有些是gNB。此外，网络设备110也可以为中心单元(central unit，CU)或其他网络实体。可选地，网络设备110可以包括上述网络实体的功能中的部分或所有功能。
终端设备120可以经RAN与核心网130进行通信。终端设备120可以分布在整个无线通信系统100中。终端设备120可以是静止的，也可以是移动的。
终端设备120可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。例如，终端设备120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)终端设备、增强现实(augmented reality，AR)终端设备、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。
本申请实施例中的网络设备，和/或终端设备可以配置多个天线。该多个天线可以包括至少一个用于发送信号的发射天线和至少一个用于接收信号的接收天线。另外，各通信设备还附加地包括发射机链和接收机链，本领域普通技术人员可以理解，它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。因此，网络设备与终端设备之间可通过多天线技术通信。
图1示出的无线通信系统仅仅是为了更加清楚的说明本申请的技术方案，并不构成对本申请的限定，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。
下文描述本申请实施例涉及到的概念。
1、双连接(dual-connectivity，DC)
双连接是3GPP Release-12版本引入的重要技术。双连接技术指的是，一个终端设备可以与两个基站建立无线链路。作为示例，图2示出通过双连接通信的通信系统200的场景示意图。如图2所示，通信系统200包括至少两个网络设备，例如图2中所示的网络设备210和220；该通信系统200还可以包括至少一个终端设备，例如图2中所示的终端设备230。
终端设备230可以通过双连接技术或者多连接技术与网络设备210和网络设备220建立无线链路。
网络设备210和网络设备220之间可以是非理想回传(non-ideal backhaul)。例如， 网络设备210和网络设备220可以利用X2接口来实现载波聚合，从而为终端设备提供更高的速率。
在双连接场景的多个网络设备中，用于终端设备初始接入的网络设备可以称为主基站。主基站负责与终端设备之间的无线资源控制(radio resource control，RRC)通信。主基站也可称为主站。
在双连接场景的多个网络设备中，在RRC重配置时添加的网络设备可以称为辅基站。辅基站用于为终端设备提供额外的无线资源。辅基站也可称为辅站。
例如，在图2所示双连接场景中，网络设备210可以为主基站，网络设备220可以为辅基站；或者，网络设备220可以为主基站，网络设备210可以为辅基站。
在双连接场景中的多个网络设备中，可以有一个网络设备，用于负责与终端设备交互RRC消息，并负责与核心网控制平面实现交互，该网络设备可以称为主节点(master node，MN)。
在双连接场景中的多个网络设备中，除了作为主节点的网络设备之外的其余网络设备可以称为辅节点(secondary node，SN)。
主节点可以是主基站。辅节点可以是辅基站。
主节点中的多个服务小区可以组成主小区组(master cell group，MCG)。服务小区是指网络配置给终端设备进行上下行传输的小区。主小区组可以包括一个主小区(primary cell，PCell)。可选地，主小区组还可以包括一个或多个辅小区(secondary cell，SCell)。例如，主节点包括一个PCell。再例如，主节点包括一个PCell以及一个或多个SCell。
辅节点中的多个服务小区可以组成辅小区组(secondary cell group，SCG)。辅小区组可以包括一个主辅小区(primary secondary cell，PSCell)。主辅小区也可以称为特殊小区。可选地，辅小区组还可以包括一个或多个SCell。例如，辅节点包括一个PSCell。再例如，辅节点包括一个PSCell以及一个或多个SCell。
例如，在图2所示双连接场景中，网络设备210可以为主节点，网络设备220可以为辅节点；或者，网络设备220可以为主节点，网络设备210可以为辅节点。
主节点可以是MeNB或者MgNB。主节点是MeNB，表示LTE系统的基站(eNB)或中心单元(CU)作为主节点。主节点是MgNB，表示5G系统的基站(gNB)或中心单元(CU)作为主节点。
辅节点可以是SeNB或SgNB。辅节点是SeNB，表示eNB作为辅节点。辅节点是SgNB，表示gNB作为辅节点。
根据双连接(DC)的不同架构，双连接(DC)可以具有不同的名称。
以4G系统(即LTE系统)的基站(eNB)为锚点，由4G系统的基站(eNB)与5G系统的基站(gNB)构建的双连接可以称为EN-DC(E-UTRA-NR Dual Connectivity)。这种架构下5G系统的基站可以称为en-gNB。
以gNB为锚点，由eNB与gNB构建的双连接可以称为NE-DC(NR E-UTRA Dual Connectivity)。
以4G系统升级后的基站(ng-eNB)为锚点，由ng-eNB与gNB构建的双连接可以称为NGEN-DC(NG-RAN E-UTRA-NR Dual Connectivity)。
NR-DC(NR-NR Dual Connectivity)的主节点和辅节点都是gNB。
不同DC中的辅节点不同。例如，(NG)EN-DC和NR-DC中的辅节点是gNB，NE-DC中的辅节点是eNB。
例如，图2中的网络设备210与网络设备220可以对应于图1中任意两个可以通过X2接口通信的网络设备110。图2中的终端设备230可以对应于图1中的终端设备120。
2、系统帧号和帧定时偏差(system frame number(SFN)and frame timing difference，SFTD)
SFTD表示两个基站之间的定时偏差。两个基站之间的定时偏差指的是，两个基站的小区之间的定时偏差。例如，基站1具有小区1和小区2，基站2具有小区3，则基站1与基站2之间的定时偏差可以是小区1与小区3之间的定时偏差，还可以是小区2与小区3之间的定时偏差。
在双连接场景中，网络设备可以配置终端设备测量SFTD。
网络设备可以配置终端设备测量主节点的主小区与辅节点的小区之间的SFTD。例如，主节点的主小区(PCell)与辅节点的主辅小区(PSCell)之间的SFTD。例如，主节点的主小区(PCell)与辅节点的辅小区(SCell)之间的SFTD。
或者，网络设备配置终端设备测量主节点的主小区与邻小区之间的SFTD。例如，主节点的主小区(PCell)与邻小区之间的SFTD。例如，该邻小区为5G或4G的小区。
通常，可以由主节点配置终端设备测量SFTD。
终端设备可以通过空口向主节点发送SFTD的测量结果。其中，空口表示网络设备与终端设备之间的接口。
主节点可以向辅节点发送SFTD的测量结果。现有技术中，主节点向辅节点发送的SFTD的测量结果中包括SFTD的测量值与SFTD对应的PSCell或邻小区的物理小区标识(physical cell identifier，PCI)。
有些情况下，主节点会向辅节点发送多个SFTD的测量结果，这多个SFTD可以是PCell分别与多个PSCell(或邻小区)的定时偏差。
以这多个SFTD是PCell分别与多个PSCell的定时偏差为例。这多个PSCell可能属于不同的频点。当前技术中可能会为不同频点的小区分配相同的PCI。因此，在主节点向辅节点发送多个SFTD的测量结果的情况下，现有的传输SFTD的方法，可能会导致辅节点无法准备识别SFTD对应的PSCell或邻小区。
针对上述问题，本申请提供一种传输定时偏差的方法与装置，在双连接通信场景中，在一定程度上可以使辅节点准确识别SFTD对应的小区。
本申请实施例应用于双连接通信场景，例如可以适用于图2所示的通信系统。本申请实施例也可应用于多连接通信场景。
本申请实施例中涉及的网络设备如前文描述的网络设备110。本申请实施例中涉及的终端设备如前文描述的终端设备120。
图3为本申请实施例提供的传输定时偏差的方法的示意性流程图。该方法包括如下步骤。
S310，主节点获取第一小区与第二小区的定时偏差的测量值。
S320，主节点向辅节点发送第一小区与第二小区的定时偏差的测量值，以及第二小区的标识信息。
主节点与辅节点表示双连接通信场景中的网络设备。例如主节点为图2中所示的网络设备210，辅节点为图2中所示的网络设备220。关于主节点与辅节点的描述详见前文。
第一小区为主节点的主小区(PCell)。
第二小区为辅节点的主辅小区(PSCell)，或者，第二小区为其他小区。例如，第二小区为辅节点的辅小区(SCell)，再例如，第二小区为终端设备的邻小区，该邻小区为LTE小区或NR小区。这里的终端设备为与第一小区与第二小区建立双连接通信或多连接通信的终端设备。
作为示例，本申请实施例中涉及的定时偏差，可以包括如下任一种：PCell和PSCell之间的定时偏差，PCell和邻小区之间的定时偏差，PCell和SCell(表示辅节点的除了PSCell之外的服务小区)之间的定时偏差。
第二小区的标识信息表示可以标识第二小区的信息。
例如，辅节点从主节点接收定时偏差与第二小区的标识信息之后，可以通过第二小区的标识信息获知该定时偏差对应的第二小区。
可选地，第二小区的标识信息包括第二小区的物理小区标识(physical cell identifier，PCI)与频点信息。
PCI是为了区分不同小区。PCI的取值有限，例如，LTE系统的PCI的取值有504个，NR系统中的PCI的取值有1008个，网络部署中不可避免会对PCI进行复用，例如，可能会为不同频点上的小区分配相同的PCI。通常，对同一频点上的小区，会尽量避免PCI的复用，例如，对同频的相邻小区分配不同的PCI。也就是说，网络部署时，会大概率地为同一频点上的不同小区分配不同的PCI。在这种情形下，PCI与频点信息，可以在一定程度上确定一个小区。
应理解，辅节点从主节点接收小区间的定时偏差与小区的标识信息之后，可以通过该小区的PCI与频点信息获知该定时偏差对应的第二小区。
在本申请中，通过主节点向辅节点发送第一小区与第二小区的定时偏差，以及第二小区的PCI与频点信息，因此，可以在一定程度上使得辅节点识别该定时偏差对应的第二小区。
可选地，第二小区的标识信息包括第二小区的小区全球标识(cell global identifier，CGI)。
CGI是在全球范围唯一标识一个小区的识别码。可以理解到，第二小区的CGI可以唯一标识第二小区。
应理解，辅节点从主节点接收小区间的定时偏差与小区的标识信息之后，可以通过该小区的CGI获知该定时偏差对应的第二小区。
在本申请中，通过主节点向辅节点发送第一小区与第二小区的定时偏差，以及第二小区的CGI，因此，可以使得辅节点识别该定时偏差对应的第二小区。
应理解，各种制式下的CGI可以都称为CGI。或者，各种制式下的CGI可以进一步被定义不同的名称。例如，LTE小区的CGI可以称为E-UTRAN小区全球标识(E-UTRAN cell global identifier，ECGI)，NR小区的CGI可以称为NR小区全球标识(NR cell global identifier，NCGI)。其中，ECGI可以由公共陆地移动网络(public land mobile network，PLMN)ID和E-UTRA小区标识(cell ID)来构造，NCGI可以由PLMN ID和NR小区标 识来构造。因此，本申请实施例中提及的CGI，若应用于LTE小区，则等价于ECGI，若应用于NR小区，则等价于NCGI。
可选地，在第二小区的标识信息包括第二小区的CGI的实施例中，第二小区的标识信息中还可以包括第二小区的PCI。
可选地，在第二小区的标识信息包括第二小区的CGI的实施例中，第二小区的标识信息中还可以包括第二小区的频点信息。
上述可知，在本申请中，通过主节点向辅节点发送小区间的定时偏差的测量值，以及该定时偏差对应的非主小区(例如本申请实施例中的第二小区)的标识信息，在一定程度上可以使辅节点识别该定时偏差对应的小区。
在主节点向辅节点发送第一小区与第二小区的定时偏差的情况下，主节点也可以向辅节点发送第一小区的PCI。
第一小区与第二小区的定时偏差的测量值可以包括第一小区与第二小区的系统帧号(system frame number，SFN)偏差(sfn-OffsetResult)，和/或帧边界偏差(frameBoundaryOffsetResult)。
本申请实施例中涉及的定时偏差例如可以称为系统帧号和帧定时偏差(system frame number(SFN)and frame timing difference，SFTD)。
若将来技术演进，采用新的名称描述表示小区之间的定时偏差，则本申请实施例中的定时偏差可以被替换为相应的名称。
下文中，将定时偏差记为SFTD进行描述。
可选地，在图3所示实施例中，除了第一小区与第二小区的SFTD的测量值以及第二小区的标识信息之外，主节点还可以向辅节点发送参考信号接收功率(reference signal receiving power，RSRP)的测量值(rsrp-Result)。这里的RSRP指的是SFTD对应的小区中除了主小区(PCell)之外的小区的RSRP，例如，主辅小区(PSCell)或邻小区的RSRP。
在步骤S320中，主节点向辅节点发送的第一小区与第二小区之间的SFTD的测量值可以是主节点配置终端设备测量测到的。
可选地，在图3所示实施例中，步骤S310包括：主节点向终端设备发送第一小区与第二小区的SFTD的测量配置信息；终端设备根据SFTD的测量配置信息，测量第一小区与第二小区的SFTD，并向主节点上报第一小区与第二小区的SFTD的测量值。
例如，SFTD的测量配置信息中可以包括第一小区与第二小区的小区标识，例如，PCI。换言之，SFTD的测量配置信息可以使得终端设备获知测量哪两个小区之间的SFTD。应理解，SFTD的测量配置信息还可以包括其它的与SFTD测量相关的信息。
例如，终端设备除了上报第一小区与第二小区之间的SFTD的测量值，还可以向主节点上报第二小区的PCI。
在步骤S320中，主节点向辅节点发送的SFTD的测量值，可以是主节点在步骤S320之前配置终端设备测量的最新测量值，或者，可以主节点在步骤S320之前配置终端设备测量的非最新测量值。
例如，主节点在向辅节点发送SFTD的测量值之前，配置终端设备测量了多次第一小区与第二小区之间的SFTD，其中，在步骤S320中，主节点向辅节点发送的SFTD的测量值可以是主节点配置终端设备最新测量的SFTD的测量值，也可以是主节点配置终端设备 非最新测量的SFTD的测量值，例如，倒数第二次测量的SFTD的测量值。
若将当前与主节点与辅节点进行双连接通信的终端设备记为当前终端设备，可选地，步骤S320中主节点向辅节点发送的SFTD的测量值还可以是由不同于当前终端设备的另一终端设备进行测量上报的，其中，对于该另一终端设备来说，第一小区可能不是主小区，第二小区可能也不是主辅小区或邻小区。
在步骤S320中，辅节点接收到主节点发送的SFTD的测量值以及小区的标识信息之后，可以解析获得该SFTD的测量值为第一小区与第二小区之间的定时偏差。
应理解，辅节点(或主节点)获得第一小区与第二小区之间的SFTD之后，可以基于该SFTD进行相关处理。例如，SFTD可以用于非连续接收(Discontinuous Reception，DRX)的对齐，或者，测量间隔(measurement gap)的识别(for the purpose of DRX alignment and identification of measurement gap)。
第一小区与第二小区的SFTD的测量值与第二小区的标识信息可以携带在同一信元中，或者，第二小区的标识信息中的至少部分信息可以与SFTD的测量值携带在不同信元中。
其中，在第二小区的标识信息中的至少部分信息与SFTD的测量值携带在不同信元中的情况下，第二小区的标识信息中的至少部分信息在相应信元中的位置对应于SFTD的测量值在相应信元中的位置。
需要说明的是，本文中提及的信元指的是信息元素(information element，IE)。
例如，信元之间可以具有包含关系。例如，信元1包含信元2，信元2中包含数据或信息。再例如，信元1包含信元2，信元2包含信元3，信元3中包含数据或信息。
可选地，信元也可称为字段(field)。
可选地，在第二小区的标识信息包括第二小区的PCI与频点信息的情况下，第一小区与第二小区的SFTD的测量值与第二小区的PCI携带在第一信元中，第二小区的频点信息携带在第二信元中，其中，第二小区的频点信息在第二信元的位置与SFTD的测量值在第一信元中的位置一一对应。
第二小区的频点信息在第二信元的位置与SFTD的测量值在第一信元中的位置一一对应，表示，可以根据SFTD的测量值在第一信元中的位置可以确定该SFTD对应的第二小区的频点信息在第二信元中的位置，或者，可以根据第二小区的频点信息在第二信元中的位置可以确定该第二小区对应的SFTD的测量值在第一信元中的位置。
例如，第二小区的频点信息在第二信元的位置(或排序)与SFTD的测量值在第一信元中的位置(或排序)相同。
可以理解到，虽然第一小区与第二小区的SFTD的测量值和第二小区的PCI，与第二小区的频点信息携带在不同信元中，但二者之间具有对应关系。
例如，辅节点接收到主节点发送的第一信元与第二信元之后，可以获知第二信元中的某个小区的频点信息与第一信元中的某个SFTD的测量值是对应的。
作为示例，第一小区与第二小区的SFTD的测量值与第二小区的PCI携带在名称为“MeasResultCellListSFTD”的第一信元中，第二小区的频点信息携带在名称为“sftdFrequencyList”的第二信元中。
名称为“MeasResultCellListSFTD”的信元还可以分为两种： “MeasResultCellListSFTD-NR”信元与“MeasResultCellListSFTD-EUTRA”信元。其中，“MeasResultCellListSFTD-NR”信元适用于双连接通信场景中的辅节点是gNB的情况，“MeasResultCellListSFTD-EUTRA”信元适用于双连接通信场景中的辅节点是eNB的情况。
作为示例而非限定，“MeasResultCellListSFTD-NR”信元的结构如下所示。
Figure PCTCN2020108921-appb-000001
作为示例而非限定，“MeasResultCellListSFTD-EUTRA”信元的结构如下所示。
Figure PCTCN2020108921-appb-000002
其中，PhysCellId表示物理小区标识(PCI)，sfn-OffsetResult表示系统帧号(SFN)偏差，frameBoundaryOffsetResult表示帧边界偏差，rsrp-Result表示参考信号功率(RSRP)。
名称为“sftdFrequencyList”的信元也可以分为两种：“sftdFrequencyList-NR”信元与“sftdFrequencyList-EUTRA”信元。其中，“sftdFrequencyList-NR”信元适用于双连接通信场景中的辅节点是gNB的情况，“sftdFrequencyList-EUTRA”信元适用于双连接通信场景中的辅节点是eNB的情况。
作为示例而非限定，“sftdFrequencyList-NR”信元的结构如下所示。
sftdFrequencyList-NR::＝SEQUENCE(SIZE(1..maxCellSFTD)OF ARFCN-ValueNR
作为示例而非限定，“sftdFrequencyList-EUTRA”信元的结构如下所示。
sftdFrequencyList-EUTRA::＝SEQUENCE(SIZE(1..maxCellSFTD)OF ARFCN-ValueEUTRA
例如，第二小区的频点信息在“sftdFrequencyList”信元中的位置(或排序)与SFTD的测量值在“MeasResultCellListSFTD”信元中的位置(或排序)相同。
以双连接通信场景中的辅节点是gNB为例，SFTD的测量值位于“MeasResultCellListSFTD-NR”信元中的第i个“MeasResultCellSFTD-NR”信元中，第二小区的频点信息为“sftdFrequencyList-NR”信元中记载的第i个频点信息，i为正整数。例如，i等于1。
以双连接通信场景中的辅节点是eNB为例，SFTD的测量值位于“MeasResultCellListSFTD-EUTRA”信元中的第j个“MeasResultCellSFTD-EUTRA”信元中，第二小区的频点信息为“sftdFrequencyList-EUTRA”信元中记载的第j个频点信息，j为正整数。例如，j等于1。
可选地，在第二小区的标识信息包括第二小区的CGI的情况下，第一小区与第二小区的SFTD的测量值携带在第一信元中，第二小区的CGI携带在第二信元中，其中，第二小区的CGI在第二信元的位置与定时偏差的测量值在第一信元中的位置一一对应。
第二小区的CGI在第二信元的位置与SFTD的测量值在第一信元中的位置一一对应，表示，可以根据SFTD的测量值在第一信元中的位置可以确定该SFTD对应的第二小区的CGI在第二信元中的位置，或者，可以根据第二小区的CGI在第二信元中的位置可以确定该第二小区对应的SFTD的测量值在第一信元中的位置。
例如，第二小区的CGI在第二信元的位置(或排序)与SFTD的测量值在第一信元中的位置(或排序)相同。
可以理解到，虽然第一小区与第二小区的SFTD的测量值和第二小区的PCI，与第二小区的CGI携带在不同信元中，但二者之间具有对应关系。
例如，辅节点接收到主节点发送的第一信元与第二信元之后，可以获知第二信元中的某个小区的CGI与第一信元中的某个SFTD的测量值是对应的。
作为示例，第一小区与第二小区的SFTD的测量值携带在名称为“MeasResultCellListSFTD”的第一信元中，第二小区的CGI信息携带在名称为“sftdCgiList”的第二信元中。
例如，CGI信息可以包括以下一种和多种信息：PLMN ID，频带(frequency band)信息，跟踪区域码(tracking area code，TAC)信息，小区标识(cell ID)等。
名称为“MeasResultCellListSFTD”的信元的描述参见前文中的描述，这里不再赘述。
名称为“sftdCgiList”的信元也可以分为两种：“sftdCgiList-NR”信元与“sftdCgiList-EUTRA”信元。其中，“sftdCgiList-NR”信元适用于双连接通信场景中的辅节点是gNB的情况，“sftdCgiList-EUTRA”信元适用于双连接通信场景中的辅节点是eNB的情况。
作为示例而非限定，“sftdCgiList-NR”信元的结构如下所示。
sftdCgiList-NR::＝SEQUENCE(SIZE(1..maxCellSFTD)OF CGI-InfoNR
作为示例而非限定，“sftdCgiList-EUTRA”信元的结构如下所示。
sftdCgiList-EUTRA::＝SEQUENCE(SIZE(1..maxCellSFTD)OF CGI-InfoEUTRA
其中，“CGI-InfoNR”信元可以复用现有技术中的“CGI-InfoNR”信元，“CGI-InfoEUTRA”信元也可以复用现技术中的“CGI-InfoEUTRA”信元。
例如，第二小区的CGI在“sftdCgiList”信元中的位置(或排序)与SFTD的测量值在“MeasResultCellListSFTD”信元中的位置(或排序)相同。
以双连接通信场景中的辅节点是gNB为例，SFTD的测量值位于“MeasResultCellListSFTD-NR”信元中的第i个“MeasResultCellSFTD-NR”信元中，第二小区的CGI为“sftdCgiList-NR”信元中记载的第i个CGI信息，i为正整数。例如，i等于1。
以双连接通信场景中的辅节点是eNB为例，SFTD的测量值位于“MeasResultCellListSFTD-EUTRA”信元中的第j个“MeasResultCellSFTD-EUTRA”信元中，第二小区的CGI为“sftdCgiList-EUTRA”信元中记载的第j个CGI信息，j为正整数。例如，j等于1。
可选地，在第二小区的标识信息包括第二小区的CGI的实施例中，第二小区的标识信息还可以包括第二小区的PCI。
例如，第一小区与第二小区的SFTD的测量值与第二小区的PCI携带在第一信元(例如，“MeasResultCellListSFTD”信元)中，第二小区的CGI携带在第二信元(例如，“sftdCgiList”信元)中。
可选地，在图3所示实施例中，第一小区与第二小区的SFTD的测量值与第二小区的标识信息携带在同一个信元中。
例如，在第二小区的标识信息包括第二小区的PCI与频点信息的情况下，第一小区与第二小区的SFTD的测量值、第二小区的PCI与第二小区的频点信息携带在同一个信元中。
在双连接通信场景中的辅节点是gNB的情况下，第一小区与第二小区的SFTD的测量值、第二小区的PCI与第二小区的频点信息携带在名称为“MeasRestulCellListSFTD-NR2”的信元中。在双连接通信场景中的辅节点是eNB的情况下，第一小区与第二小区的SFTD的测量值、第二小区的PCI与第二小区的频点信息携带在名称为“MeasRestulCellListSFTD-EUTRA2”的信元中。
作为示例而非限定，作为示例而非限定，“MeasResultCellListSFTD-NR2”信元的结构如下所示。
Figure PCTCN2020108921-appb-000003
其中，ssbFrequency表示小区的频点信息。
作为示例而非限定，“MeasResultCellListSFTD-EUTRA2”信元的结构如下所示。
Figure PCTCN2020108921-appb-000004
Figure PCTCN2020108921-appb-000005
其中，ssbFrequency表示小区的频点信息。
再例如，在第二小区的标识信息包括第二小区的CGI的情况下，第一小区与第二小区的SFTD的测量值与第二小区的CGI携带在同一个信元中。
在双连接通信场景中的辅节点是gNB的情况下，第一小区与第二小区的SFTD的测量值与第二小区的CGI携带在名称为“MeasRestulCellListSFTD-NR2”的信元中。在双连接通信场景中的辅节点是eNB的情况下，第一小区与第二小区的SFTD的测量值与第二小区的频点信息携带在名称为“MeasRestulCellListSFTD-EUTRA2”的信元中。
这种情形下，第一小区与第二小区的SFTD的测量值、第二小区的PCI与CGI携带在同一个信元中。
作为示例而非限定，“MeasResultCellListSFTD-NR2”信元的结构如下所示。
Figure PCTCN2020108921-appb-000006
作为示例而非限定，“MeasResultCellListSFTD-EUTRA2”信元的结构如下所示。
Figure PCTCN2020108921-appb-000007
其中，CGI-InfoNR和CGI-InfoEUTRA的结构参见前文描述，这里不再赘述。
作为示例，可以在现有协议基础上，新增一个信元，用于携带第一小区与第二小区的SFTD的测量值与第二小区的标识信息。
应理解，上文给出的名称为“MeasResultCellListSFTD”的信元、名称为“sftdFrequencyList”的信元、名称为“sftdCgiList”的信元，仅为示例而非限定。
还应理解，主节点还可以采用其它可行的信令格式，向辅节点发送第一小区与第二小区的SFTD的测量值与第二小区的标识信息。
例如，可以将一个SFTD(第一小区与第二小区之间的SFTD)的测量值与该SFTD对应的第二小区的标识信息统称为该SFTD的测量结果。
上文结合图3描述的实施例中，以主节点向辅节点发送一个SFTD的测量结果为例进行了描述。本申请并非限定于此，主节点还可以向辅节点发送多个SFTD的测量结果。其 中，图3所示实施例中的方案，可以适用于主节点向辅节点发送每个SFTD的测量结果。
可选地，在图3所示实施例中，步骤S320包括：主节点向辅节点发送第一小区分别与多个第二小区的SFTD，以及每个第二小区的标识信息。其中，每个第二小区的标识信息包括该小区的PCI与频点信息，或者，该小区的CGI。
以N个第二小区为例，N为正整数。主节点向辅节点发送：第一小区与第1个第二小区的SFTD，第1个第二小区的标识信息；第一小区与第2个第二小区的SFTD，第2个第二小区的标识信息；...；第一小区与第N个第二小区的SFTD，第N个第二小区的标识信息。
作为示例，主节点可以通过列表(list)的方式，向辅节点发送第一小区分别与多个第二小区的SFTD，以及多个第二小区的标识信息。
在本实施例中，多个第二小区中可以包括如下任一种或多种小区：辅节点的主辅小区(PSCell)，邻小区，辅节点的辅小区(SCell)。
在本实施例中，多个第二小区中可以包括同频小区，和/或异频小区。
在主节点向辅节点发送多个SFTD的测量结果的实施例中，不同SFTD的测量值携带在不同的信元中。
在主节点向辅节点发送多个SFTD的测量结果的实施例中，可选地，对于同一个SFTD，该SFTD的测量值与该SFTD对应的第二小区的标识信息可以携带在同一信元中。
以主节点向辅节点发送3个SFTD的测量结果为例，主节点向辅节点发送：
第一小区与小区a的SFTD(记为SFTD1)的测量值，小区a的标识信息；
第一小区与小区b的SFTD(记为SFTD2)的测量值，小区b的标识信息；
第一小区与小区c的SFTD(记为SFTD3)的测量值，小区c的标识信息。
应理解，本示例中的小区a，b，c对应上述实施例中的多个第二小区。
例如，SFTD1的测量值与小区a的标识信息携带在“MeasResultCellSFTD_1”信元中，SFTD2的测量值与小区b的标识信息携带在“MeasResultCellSFTD_2”信元中，SFTD3的测量值与小区c的标识信息携带在“MeasResultCellSFTD_3”信元中。
例如，“MeasResultCellSFTD_1”信元，“MeasResultCellSFTD_2”信元与“MeasResultCellSFTD_3”信元均可位于“MeasResultCellListSFTD”信元中。
作为示例，“MeasResultCellListSFTD”信元的结构如下。
MeasResultCellListSFTD::＝SEQUENCE(SIZE(1..maxCellSFTD))OF MeasResultCellSFTD
MeasResultCellSFTD_1::＝SEQUENCE{…}
MeasResultCellSFTD_2::＝SEQUENCE{…}
MeasResultCellSFTD_3::＝SEQUENCE{…}
应理解，“MeasResultCellListSFTD”信元可以为“MeasResultCellListSFTD-NR”信元，或“MeasResultCellListSFTD-EUTRA”信元。
从上面例子可以看出，不同SFTD的测量值携带在不同的信元中，这些不同的信元又可以位于同一个大的信元中。
主节点向辅节点发送多个SFTD的测量结果的实施例中，可选地，对于同一个SFTD，该SFTD的测量值与第二小区的标识信息可以携带在同一信元中，或者，第二小区的标识 信息中的至少部分信息可以与该SFTD的测量值携带在不同信元中。
其中，在第二小区的标识信息中的至少部分信息与该SFTD的测量值携带在不同信元中的情况下，第二小区的标识信息中的至少部分信息在相应信元中的位置对应于SFTD的测量值在相应信元中的位置。即该SFTD的测量值在相应信元中的位置与该SFTD对应的第二小区的标识信息在相应信元中的位置一一对应。
还以上文的主节点向辅节点发送3个SFTD的测量结果为例。在第二小区的标识信息包括PCI与频点信息的情况下，即小区a的标识信息包括小区a的PCI与频点信息，小区b的标识信息包括小区b的PCI与频点信息，小区c的标识信息包括小区c的PCI与频点信息。
例如，SFTD1的测量值与小区a的PCI携带在“MeasResultCellSFTD_1”信元中，SFTD2的测量值与小区b的PCI携带在“MeasResultCellSFTD_2”信元中，SFTD3的测量值与小区c的PCI携带在“MeasResultCellSFTD_3”信元中。小区a的频点信息Frequency_1，小区b的频点信息Frequency_2，小区c的频点信息Frequency_3携带在“sftdFrequencyList”信元中。
其中，“MeasResultCellSFTD_1”信元，“MeasResultCellSFTD_2”信元与“MeasResultCellSFTD_3”信元均可位于“MeasResultCellListSFTD”信元中，如上文所示。
其中，例如，“sftdFrequencyList”信元的结构如下。
sftdFrequencyList::＝SEQUENCE{
Frequency_1，
Frequency_2，
Frequency_3，
}
从本例中可以看出，小区a的频点信息Frequency_1、小区b的频点信息Frequency_2、小区c的频点信息Frequency_3在“sftdFrequencyList”信元中的位置(或顺序)，与SFTD1的测量值、SFTD2的测量值、SFTD3的测量值在“MeasResultCellListSFTD”信元中的位置(或顺序)一一对应。
可以理解到，在本示例中，“MeasResultCellListSFTD”信元对应于本申请实施例中的第一信元，“sftdFrequencyList”信元对应于本申请实施例中的第二信元。
还以上文的主节点向辅节点发送3个SFTD的测量结果为例。在第二小区的标识信息包括CGI的情况下，即小区a的标识信息包括小区a的CGI，小区b的标识信息包括小区b的CGI，小区c的标识信息包括小区c的CGI。
例如，SFTD1的测量值携带在“MeasResultCellSFTD_1”信元中，SFTD2的测量值携带在“MeasResultCellSFTD_2”信元中，SFTD3的测量值携带在“MeasResultCellSFTD_3”信元中。小区a的CGI_1，小区b的CGI_2，小区c的CGI_3携带在“sftdCgiList”信元中。
其中，“MeasResultCellSFTD_1”信元，“MeasResultCellSFTD_2”信元与“MeasResultCellSFTD_3”信元均可位于“MeasResultCellListSFTD”信元中，如上文所示。
其中，例如，“sftdCgiList”信元的结构如下。
sftdCgiList::＝SEQUENCE{
CGI_1，
CGI_2，
CGI_3，
}
从本例中可以看出，小区a的CGI_1、小区b的CGI_2、小区c的CGI_3在“sftdCgiList”信元中的位置(或顺序)，与SFTD1的测量值、SFTD2的测量值、SFTD3的测量值在“MeasResultCellListSFTD”信元中的位置(或顺序)一一对应。
在本例中，可选地，小区a的PCI信息也可以携带在“MeasResultCellSFTD_1”信元中，小区b的PCI信息也可以携带在“MeasResultCellSFTD_2”信元中，小区c的PCI信息也可以携带在“MeasResultCellSFTD_3”信元中。
可以理解到，在本示例中，“MeasResultCellListSFTD”信元对应于本申请实施例中的第一信元，“sftdCgiList”信元对应于本申请实施例中的第二信元。
应理解，上文示例中的“MeasResultCellListSFTD”信元可以为“MeasResultCellListSFTD-NR”信元，或“MeasResultCellListSFTD-EUTRA”信元。“sftdFrequencyList”信元可以为“sftdFrequencyList-NR”信元，或“sftdFrequencyList-EUTRA”信元。“sftdCgiList”信元可以为“sftdCgiList-NR”信元，或“sftdCgiList-EUTRA”信元。
基于上文描述，图3所示的实施例，通过主节点向辅节点发送小区间的定时偏差，以及该定时偏差对应的非主小区(例如本申请实施例中的第二小区)的标识信息，可以使得辅节点识别该定时偏差对应的非主小区。
本申请另一实施例提供一种传输定时偏差的方法。该方法包括：主节点向辅节点发送第一小区与第二小区的SFTD，以及第一小区的标识信息。
其中，主节点、辅节点、第一小区、第二小区的描述与上文中对主节点、辅节点、第一小区、第二小区的描述相同，这里不再详述。
例如，第一小区为主节点的主小区(PCell)。第二小区为辅节点的主辅小区(PSCell)。或者，第二小区为其他小区。例如，第二小区为辅节点的辅小区(SCell)，再例如，第二小区为邻小区，该邻小区为LTE小区或NR小区。
第一小区的标识信息标识表示可以标识第一小区的信息。例如，第一小区的标识信息为第一小区的小区标识或小区编号，或其它的可指示第一小区的信息。
例如，辅节点从主节点接收定时偏差与第一小区的标识信息之后，可以通过第一小区的标识信息获知该定时偏差对应的主小区(即本实施例中的第一小区)。
可选地，可以在小区配置信息(CG-ConfigInfo)中新增一个字段，用于携带第一小区的标识信息。
可选地，第一小区的标识信息可以携带在X2/Xn接口交互消息中。
例如，第一小区的标识信息可以携带在如下任一种信令中：辅节点(SN)添加消息，辅节点重配消息，辅节点修改消息，辅节点释放消息。
作为示例，可以在辅节点添加消息，辅节点重配消息，辅节点修改消息，辅节点释放消息的任一个消息中新增一个信元(information element，IE)，用于携带第一小区的标识信息。
在本申请实施例中，主节点在向辅节点在发送第一小区与第二小区的SFTD的场景下， 主节点还向辅节点发送第一小区的标识信息，可以使得辅节点获知该定时偏差对应的主小区(即本实施例中的第一小区)。
辅节点获知SFTD对应的主小区之后，可以将该SFTD应用于其它终端设备。例如，将该SFTD应用于其它终端设备的测量间隔(measurement gap)配置或非连续接收(Discontinuous Reception，DRX)配置。这里提及的其它终端设备不同于当前与主节点与辅节点建立双连接通信的终端设备。
可选地，在图3所示实施例中，主节点也可以向辅节点发送第一小区的标识信息。
例如，在步骤S310中，主节点向辅节点发送第一小区与第二小区的SFTD，第二小区的标识信息，以及第一小区的标识信息。
本申请另一实施例还提供一种用于测量定时偏差的方法。该方法包括：主节点与辅节点协商对终端设备的定时偏差测量配置，以保证终端设备在同一时间最多进行一个定时偏差测量任务。
主节点与辅节点的协商方式可以有多种，只要可以保证终端设备在同一时间最多只进行一个定时偏差测量任务即可。
下文结合4示例性给出一种协商方式。
图4为本申请另一实施例提供的用于测量定时偏差的方法的示意性流程图。该方法包括如下步骤。
S410，辅节点(SN)确定配置终端设备测量小区之间的定时偏差。
S420，辅节点向主节点(MN)发送请求消息，用于请求由辅节点配置终端设备测量小区之间的定时偏差。
S430，在主节点同意由所述辅节点配置终端设备测量该定时偏差的情况下，所述辅节点配置所述终端设备测量该定时偏差。
应理解，在主节点不同意的情况下，所述辅节点不配置所述终端设备测量该定时偏差。
本申请实施例可以实现，由辅节点配置终端设备测量小区之间的定时偏差。
此外，辅节点通过与主节点的协商的方式，来配置终端设备测量定时偏差。辅节点是在主节点同意的情况下配置终端设备测量小区间的定时偏差。因此，本申请可以使得在双连接场景下，主节点与辅节点能够通过协商的方式，配置终端设备测量SFTD，从而可以避免给终端设备配置的SFTD测量任务超过终端设备的能力。
本申请实施例中涉及的小区之间的定时偏差例如可以称为SFTD。下文中，以小区之间的定时偏差为SFTD为例进行描述。
在图4所示实施例中，辅节点想要配置终端设备测量的小区之间的SFTD，可以是如下任一种：
主节点的主小区(PCell)与辅节点的主辅小区(PSCell)之间的SFTD；
PCell与邻小区之间的SFTD；
PSCell与邻小区之间的SFTD。
可选地，辅节点想要配置终端设备测量的小区之间的SFTD还可以是主辅小区(PSCell)与主节点的辅小区之间的SFTD。
步骤S430可以有多种实施方式。
第一种实施方式。
主节点在同意由辅节点配置终端设备测量SFTD的情况下，向辅节点发送用于指示同意配置的响应消息；在不同意由辅节点配置终端设备测量SFTD的情况下，向辅节点发送用于指示不同意配置的响应消息。
步骤S430包括：辅节点在接收到主节点发送的用于指示同意配置的响应消息的情况下，配置终端设备测量SFTD。
应理解，辅节点在接收到主节点发送的用于指示不同意配置的响应消息的情况下，不配置终端设备测量SFTD。
第二种实施方式。
主节点只在不同意由辅节点配置终端设备测量SFTD的情况下，向辅节点发送响应消息，例如，该响应消息用于指示不同意配置；在同意由辅节点配置终端设备测量SFTD的情况下，不向辅节点发送消息。
步骤S430包括：辅节点在未接收到主节点针对该请求消息发送的响应消息的情况下，配置终端设备测量SFTD。
应理解，辅节点在接收到主节点针对该请求消息发送的响应消息的情况下，不配置终端设备测量SFTD。
第三种实施方式。
主节点只在同意由辅节点配置终端设备测量SFTD的情况下，向辅节点发送响应消息，例如，该响应消息用于指示同意配置；在不同意由辅节点配置终端设备测量SFTD的情况下，不向辅节点发送消息。
步骤S430包括：辅节点在接收到主节点针对该请求消息发送的响应消息的情况下，配置终端设备测量SFTD。
应理解，辅节点在未接收到主节点针对该请求消息发送的响应消息的情况下，不配置终端设备测量SFTD。
可选地，在图4所示实施例中，该方法还可以包括：辅节点向主节点发送指示信息，用于指示待测SFTD的小区。
该指示信息可以包括待测SFTD的小区的标识信息。
或者该指示信息可以包括SFTD的类型，用于间接指示待测SFTD的小区。
假设，将PCell与PSCell之间的SFTD记为第一类型SFTD，将PCell与邻小区之间的SFTD记为第二类型SFTD，将PSCell与邻小区之间的SFTD记为第三类型SFTD。若该指示信息指示第一类型SFTD，表明待测SFTD的小区为PCell与PSCell。若该指示信息指示第二类型SFTD，表明待测SFTD的小区为PCell与邻小区。
该指示信息可以携带在步骤S420中的请求消息中。或者，该指示信息不携带在步骤S420中的请求消息中，例如，该指示信息通过其他信令发送。
可选地，步骤S420中辅节点向主节点发送的请求消息中还携带SFTD的测量配置信息，SFTD的测量配置信息中包括指示待测SFTD的小区的标识信息。这里的SFTD表示辅节点请求配置终端设备测量的SFTD。
例如，SFTD的测量配置信息中包括的待测SFTD的小区的标识信息为该小区的PCI与频点信息，或该小区的CGI。
主节点根据辅节点发送的请求消息，可以获得辅节点请求测量的SFTD对应的小区。
主节点在接收到辅节点的请求消息时，可能已经获得(或可以间接获得)辅节点所请求的SFTD的测量结果。
例如，辅节点请求配置终端设备测量的SFTD为PSCell与其它小区的SFTD，主节点在接收到辅节点的请求消息时，已经获得PCell与PSCell的SFTD，以及PCell与该其它小区的SFTD。这里的其它小区例如为邻小区。应理解，基于PCell与PSCell的SFTD，以及PCell与该其它小区的SFTD，主节点可以计算得到PSCell与其它小区的SFTD。
可选地，在主节点已经获取辅节点所请求的SFTD的测量结果的情况下，主节点向辅节点发送用于指示该SFTD的测量结果的信息。辅节点在接收到主节点发送的用于指示该SFTD的测量结果的信息的情况下，不配置终端设备测量SFTD。相当于，主节点向辅节点发送用于指示该SFTD的测量结果的信息，隐含表示不同意辅节点配置终端设备测量SFTD。
以辅节点请求配置终端设备测量的SFTD为PSCell与其它小区的SFTD为例，可选地，主节点向辅节点发送用于指示该SFTD的测量结果的信息，包括：主节点向辅节点发送PCell与该其它小区的SFTD。辅节点根据主节点发送的PCell与该其它小区的SFTD，可以得到PSCell与其它小区的SFTD。
通常情况下，辅节点本地可能存储有PCell与PSCell的SFTD，例如，辅节点在与主节点的历史交互过程中获得PCell与PSCell的SFTD。这种情形下，辅节点根据主节点发送的PCell与该其它小区的SFTD，以及本地存储的PCell与PSCell的SFTD，可以计算得到PSCell与其它小区的SFTD。
可选地，主节点在向辅节点发送PCell与该其它小区的SFTD时，也可以发送PCell与PSCell的SFTD。这种情形下，辅节点可以根据主节点发送的PCell与该其它小区的SFTD，以及PCell与PSCell的SFTD，计算得到PSCell与其它小区的SFTD。
还以辅节点请求配置终端设备测量的SFTD为PSCell与其它小区的SFTD为例，可选地，主节点向辅节点发送用于指示该SFTD的测量结果的信息，包括：主节点向辅节点直接发送PSCell与其它小区的SFTD。
其中，PSCell与其它小区的SFTD，可以根据PCell与PSCell的SFTD，以及PCell与该其它小区的SFTD计算得到。
可选地，在主节点已经获取辅节点所请求配置终端设备测量的SFTD的测量结果的情况下，主节点可以向辅节点发送用于指示不同意配置的响应消息。辅节点在接收到用于指示不同意配置的响应消息的情况下，不配置终端设备测量SFTD。
可选地，在图4所示实施例中，步骤S420可以不执行。
例如，主节点可以主动向辅节点发送是否同意由辅节点配置终端设备测量SFTD的指示消息。这种情形下，辅节点可以根据主节点主动发送的指示消息，决定是否配置终端设备测量SFTD，可以不向主节点发送请求消息，即不执行步骤S420。
例如，在图4所示实施例中，辅节点配置终端设备测量SFTD包括：辅节点向终端设备发送SFTD的测量配置信息，该测量配置信息中包括待测SFTD的小区的标识信息。即该测量配置信息使得终端设备可以获知需要测量哪些小区的SFTD。终端设备根据辅节点发送的SFTD的测量配置信息，测量相应小区的SFTD，并向辅节点上报SFTD的测量结果。
图4所示实施例，可以使得在双连接场景下，主节点与辅节点能够通过协商的方式，配置终端设备测量SFTD，从而可以避免给终端设备配置的SFTD测量任务超过终端设备的能力。
图4以主节点与一个辅节点为例进行了描述。应理解，在包括多个辅节点的多连接场景中，多个辅节点都可以与主节点进行协商，以保证终端设备在同一时间最多只进行一个定时偏差测量任务。
图5为本申请另一实施例提供的用于测量定时偏差的方法的示意性流程图。该方法的执行主体为终端设备或者可以配置于终端设备的部件(芯片或者电路)。该方法包括如下步骤。
S510，从主节点接收小区之间的定时偏差的第一测量配置信息。
S520，从辅节点接收小区之间的定时偏差的第二测量配置信息。
S530，根据第一测量配置信息和/或第二测量配置信息，测量小区之间的定时偏差。
本申请实施例中涉及的小区之间的定时偏差例如可以称为SFTD。下文中，以小区之间的定时偏差为SFTD为例进行描述。
需要说明的是，步骤S510与步骤S520之间没有严格先后顺序的限制。
可选地，在步骤S530中，可以仅根据第一测量配置信息测量SFTD。换言之，不按照第二测量配置信息测量SFTD，或者说忽略第二测量配置信息。
可选地，在步骤S530中，可以仅根据第二测量配置信息测量SFTD。换言之，不按照第一测量配置信息测量SFTD，或者说忽略第一测量配置信息。
可选地，在步骤S530中，先根据第一测量配置信息测量小区之间的SFTD，在完成根据第一测量配置信息测量小区之间的SFTD之后，根据第二测量配置信息测量小区之间的SFTD。
可选地，在步骤S530中，先根据第二测量配置信息测量小区之间的SFTD，在完成根据第二测量配置信息测量小区之间的SFTD之后，根据第一测量配置信息测量小区之间的SFTD。
本申请实施例可以避免为终端设备配置的SFTD测量任务超过终端设备的能力。
本文中描述的各个实施例可以为独立的方案，也可以根据内在逻辑进行组合，这些方案都落入本申请的保护范围中。
可以理解的是，上述各个方法实施例中由终端设备实现的方法和操作，也可以由可用于终端设备的部件(例如芯片或者电路)实现，上述各个方法实施例中由网络设备实现的方法和操作，也可以由可用于网络设备的部件(例如芯片或者电路)实现。
上文描述了本申请提供的方法实施例，下文将描述本申请提供的装置实施例。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，这里不再赘述。
上文主要从各个网元之间交互的角度对本申请实施例提供的方案进行了描述。可以理解的是，各个网元，例如发射端设备或者接收端设备，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于 技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的保护范围。
本申请实施例可以根据上述方法示例，对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。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。需要说明的是，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，实际实现时可以有其它可行的划分方式。下面以采用对应各个功能划分各个功能模块为例进行说明。
图6为本申请实施例提供的通信装置600的示意性框图。该通信装置600包括收发单元610和处理单元620。收发单元610可以与外部进行通信，处理单元610用于进行数据处理。收发单元610还可以称为通信接口或通信单元。
可选地，该通信装置600还可以包括存储单元，该存储单元可以用于存储指令或者数据，处理单元620可以读取存储单元中的指令或者数据。
该通信装置600可以用于执行上文方法实施例中终端设备所执行的动作，这时，该通信装置600可以为终端设备或者可配置于终端设备的部件，收发单元610用于执行上文方法实施例中终端设备侧的收发相关的操作，处理单元620用于执行上文方法实施例中终端设备侧的处理相关的操作。
或者，该通信装置600可以用于执行上文方法实施例中网络设备(主节点或辅节点)所执行的动作，这时，该通信装置600可以为网络设备或者可配置于网络设备的部件，收发单元610用于执行上文方法实施例中网络设备侧的收发相关的操作，处理单元620用于执行上文方法实施例中网络设备侧的处理相关的操作。
作为一种设计，该通信装置600用于执行上文图3所示实施例中主节点所执行的动作，处理单元620，用于获取第一小区与第二小区的定时偏差的测量值；收发单元610，用于向辅节点发送定时偏差的测量值，以及第二小区的标识信息，其中，第一小区为主节点的主小区，第二小区为辅节点的主辅小区，或者，第二小区为其他小区，第二小区的标识信息包括第二小区的PCI与频点信息，或者，第二小区的标识信息包括第二小区的CGI。
其中，例如，定时偏差为SFTD。
可选地，定时偏差的测量值与第二小区的标识信息携带在同一个信元中。
可选地，在第二小区的标识信息包括第二小区的物理小区标识PCI与频点信息的情况下，定时偏差的测量值与第二小区的PCI携带在第一信元中，第二小区的频点信息携带在第二信元中，其中，第二小区的频点信息在第二信元的位置与定时偏差的测量值或第二小区的PCI在第一信元中的位置一一对应。
可选地，在第二小区的标识信息包括第二小区的小区全球标识CGI的情况下，定时偏差的测量值携带在第一信元中，第二小区的CGI携带在第二信元中，其中，第二小区的CGI在第二信元的位置与定时偏差的测量值在第一信元中的位置一一对应。
作为另一种设计，通信装置600用于执行上文图3所示实施例中辅节点所执行的动作，收发单元610，用于从主节点接收第一小区与第二小区的定时偏差的测量值，以及第二小区的标识信息；处理单元620，用于获知第一小区与第二小区的定时偏差，其中，第一小区为主节点的主小区，第二小区为辅节点的主辅小区，或者，第二小区为其他小区，第二 小区的标识信息包括第二小区的PCI与频点信息，或者，第二小区的标识信息包括第二小区的CGI。
其中，例如，定时偏差为SFTD。
可选地，定时偏差的测量值与第二小区的标识信息携带在同一个信元中。
可选地，在第二小区的标识信息包括第二小区的物理小区标识PCI与频点信息的情况下，定时偏差的测量值与第二小区的PCI携带在第一信元中，第二小区的频点信息携带在第二信元中，其中，第二小区的频点信息在第二信元的位置与定时偏差的测量值或第二小区的PCI在第一信元中的位置一一对应。
可选地，在第二小区的标识信息包括第二小区的小区全球标识CGI的情况下，定时偏差的测量值携带在第一信元中，第二小区的CGI携带在第二信元中，其中，第二小区的CGI在第二信元的位置与定时偏差的测量值在第一信元中的位置一一对应。
可选地，处理单元620还用于可以基于该SFTD进行相关处理。例如，SFTD可以用于DRX的对齐，或者，测量间隔(measurement gap)的识别。
作为另一种设计，通信装置600用于执行上文图4所示实施例中辅节点所执行的动作，处理单元620，用于：确定配置终端设备测量小区之间的定时偏差；在主节点同意的情况下，配置终端设备测量定时偏差。
其中，例如，定时偏差为SFTD。
可选地，收发单元610，用于向主节点发送请求消息，用于请求配置终端设备测量定时偏差；处理单元620用于：在收发单元610接收到主节点发送的用于指示同意配置的响应消息的情况下，辅节点配置终端设备测量定时偏差；或在收发单元610未收到主节点针对请求消息的响应消息的情况下，辅节点配置终端设备测量定时偏差。
可选地，请求消息中还携带定时偏差的测量配置信息，定时偏差的测量配置信息中包括定时偏差对应的小区的标识信息；处理单元620用于，在收发单元610接收到主节点发送的用于指示定时偏差的测量结果的信息的情况下，辅节点不配置终端设备测量定时偏差。
可选地，定时偏差对应的小区包括辅节点的主辅小区与其它小区；其中，主节点发送的用于指示定时偏差的测量结果的信息包括：主小区与其它小区的定时偏差；或主辅小区与其它小区的定时偏差。
可选地，定时偏差对应的小区的标识信息包括：小区的PCI与频点信息；或小区的CGI。
作为另一种设计，通信装置600用于执行上文图4所示实施例中主节点所执行的动作，收发单元610，用于从辅节点接收请求消息，请求消息用于请求辅节点配置终端设备测量小区之间的定时偏差；处理单元620，用于根据请求消息确定是否同意辅节点配置终端设备测量定时偏差；收发单元610还用于，向辅节点发送用于指示同意或不同意配置的响应消息。
其中，例如，定时偏差为SFTD。
可选地，请求消息中还携带定时偏差的测量配置信息，定时偏差的测量配置信息中包括定时偏差对应的小区的标识信息；收发单元610还用于，向辅节点发送用于指示定时偏差的测量结果的信息，表示不同意辅节点配置终端设备测量定时偏差。
可选地，定时偏差对应的小区包括辅节点的主辅小区与其它小区；其中，主节点发送的用于指示定时偏差的测量结果的信息包括：主小区与其它小区的定时偏差；或主辅小区与其它小区的定时偏差。
可选地，定时偏差对应的小区的标识信息包括：小区的PCI与频点信息；或小区的CGI。
作为另一种设计，通信装置600用于执行上文图4所示实施例中终端设备所执行的动作，或者图5所示实施例的方法，收发单元610，用于：从主节点接收小区之间的定时偏差的第一测量配置信息；从辅节点接收小区之间的定时偏差的第二测量配置信息；处理单元620，用于根据第一测量配置信息和/或第二测量配置信息，测量小区之间的定时偏差。
其中，例如，定时偏差为SFTD。
可选地，处理单元620用于：根据第一测量配置信息测量小区之间的定时偏差；或根据第二测量配置信息测量小区之间的定时偏差；或在完成根据第一测量配置信息测量小区之间的定时偏差之后，根据第二测量配置信息测量小区之间的定时偏差；或在完成根据第二测量配置信息测量小区之间的定时偏差之后，根据第一测量配置信息测量小区之间的定时偏差。
上文实施例中的处理单元620可以由处理器或处理器相关电路实现。收发单元610可以由收发器或收发器相关电路实现。收发单元610还可称为通信单元或通信接口。存储单元可以通过存储器实现。
如图7所示，本申请实施例还提供一种通信装置700。该通信装置700包括处理器710，处理器710与存储器720耦合，存储器720用于存储计算机程序或指令或者数据，处理器710用于执行存储器720存储的计算机程序或指令或者数据，使得上文方法实施例中的方法被执行。
可选地，该通信装置700包括的处理器710为一个或多个。
可选地，如图7所示，该通信装置700还可以包括存储器720。
可选地，该通信装置700包括的存储器720可以为一个或多个。
可选地，该存储器720可以与该处理器710集成在一起，或者分离设置。
可选地，如图7所示，该通信装置700还可以包括收发器730，收发器730用于信号的接收和/或发送。例如，处理器710用于控制收发器730进行信号的接收和/或发送。
作为一种方案，该通信装置700用于实现上文方法实施例中由终端设备执行的操作。
例如，处理器710用于实现上文方法实施例中由终端设备执行的处理相关的操作，收发器730用于实现上文方法实施例中由终端设备执行的收发相关的操作。
作为另一种方案，该通信装置700用于实现上文方法实施例中由网络设备(主节点或辅节点)执行的操作。
例如，处理器710用于实现上文方法实施例中由网络设备执行的处理相关的操作，收发器730用于实现上文方法实施例中由网络设备执行的收发相关的操作。
本申请实施例还提供一种通信装置800，该通信装置800可以是终端设备也可以是芯片。该通信装置800可以用于执行上述方法实施例中由终端设备所执行的操作。
当该通信装置800为终端设备时，图8示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图8中，终端设备以手机作为例子。如图8所示，终端设备包括处理 器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图8中仅示出了一个存储器和处理器，在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。
如图8所示，终端设备包括收发单元810和处理单元820。收发单元810也可以称为收发器、收发机、收发装置等。处理单元820也可以称为处理器，处理单板，处理模块、处理装置等。
可选地，可以将收发单元810中用于实现接收功能的器件视为接收单元，将收发单元810中用于实现发送功能的器件视为发送单元，即收发单元810包括接收单元和发送单元。收发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。
例如，在一种实现方式中，处理单元820用于执行图4中终端设备侧的处理动作，例如，根据辅节点发送的测量配置信息进行SFTD的测量；收发单元810用于执行图4中终端设备接收辅节点的SFTD的测量配置信息的操作。
例如，在一种实现方式中，处理单元820用于执行图5中的步骤S530；收发单元810用于执行图5中的步骤S510与步骤S520中的接收操作。
应理解，图8仅为示例而非限定，上述包括收发单元和处理单元的终端设备可以不依赖于图8所示的结构。
当该通信装置800为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路或通信接口；处理单元可以为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种通信装置900，该通信装置900可以是网络设备也可以是芯片。该通信装置900可以用于执行上述方法实施例中由网络设备(主节点或辅节点)所执行的操作。
当该通信装置900为网络设备时，例如为基站。图9示出了一种简化的基站结构示意图。基站包括910部分以及920部分。910部分主要用于射频信号的收发以及射频信号与基带信号的转换；920部分主要用于基带处理，对基站进行控制等。910部分通常可以称 为收发单元、收发机、收发电路、或者收发器等。920部分通常是基站的控制中心，通常可以称为处理单元，用于控制基站执行上述方法实施例中网络设备侧的处理操作。
910部分的收发单元，也可以称为收发机或收发器等，其包括天线和射频电路，其中射频电路主要用于进行射频处理。可选地，可以将910部分中用于实现接收功能的器件视为接收单元，将用于实现发送功能的器件视为发送单元，即910部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
920部分可以包括一个或多个单板，每个单板可以包括一个或多个处理器和一个或多个存储器。处理器用于读取和执行存储器中的程序以实现基带处理功能以及对基站的控制。若存在多个单板，各个单板之间可以互联以增强处理能力。作为一种可选的实施方式，也可以是多个单板共用一个或多个处理器，或者是多个单板共用一个或多个存储器，或者是多个单板同时共用一个或多个处理器。
例如，在一种实现方式中，网络设备为主节点，910部分的收发单元用于执行图3中步骤S320中的发送操作，和/或910部分的收发单元还用于执行图3所示实施例中由主节点执行的其他收发相关的步骤；920部分用于执行图3中步骤S310，和/或920部分还用于执行图3所示实施例中由主节点执行的处理相关的步骤。
例如，在又一种实现方式中，网络设备为主节点，910部分的收发单元用于执行图4中步骤S420中的接收操作，和/或910部分的收发单元还用于执行图4所示实施例中由主节点执行的其他收发相关的步骤，例如，主节点向辅节点发送针对请求消息的响应消息；920部分用于执行图4中所示实施例中由主节点执行的处理相关的步骤。
例如，在再一种实现方式中，网络设备为主节点，910部分的收发单元用于执行图5中步骤S510中的发送操作；920部分用于执行图5中所示实施例中由主节点执行的处理相关的步骤，例如，为终端设备生成用于测量SFTD的第一测量配置信息。
例如，在再一种实现方式中，网络设备为辅节点，910部分的收发单元用于执行图3中步骤S320中的接收操作，和/或910部分的收发单元还用于执行图3所示实施例中由辅节点执行的其他收发相关的步骤；920部分用于执行图3所示实施例中由辅节点执行的处理相关的步骤，例如，根据从主节点接收的信息获得第一小区与第二小区之间的定时偏差。
例如，在再一种实现方式中，网络设备为辅节点，910部分的收发单元用于执行图4中步骤S420中的发送操作，以及步骤S430中辅节点的发送操作(例如，向终端设备发送SFTD的测量配置信息)，和/或910部分的收发单元还用于执行图4所示实施例中由辅节点执行的其他收发相关的步骤；920部分用于执行图4中的步骤S410，和/或920部分的处理单元还用于执行图4所示实施例中由辅节点执行的处理相关的步骤。
例如，在再一种实现方式中，网络设备为辅节点，910部分的收发单元用于执行图5中步骤S520中的发送操作；920部分用于执行图5中所示实施例中由辅节点执行的处理相关的步骤，例如，为终端设备生成用于测量SFTD的第二测量配置信息。
应理解，图9仅为示例而非限定，上述包括收发单元和处理单元的网络设备可以不依赖于图9所示的结构。
当该通信装置900为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电 路。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述方法实施例中由终端设备执行的方法，或由网络设备(主节点或辅节点)执行的方法的计算机指令。
例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法实施例中由终端设备执行的方法，或由网络设备(主节点或辅节点)执行的方法。
本申请实施例还提供一种包含指令的计算机程序产品，该指令被计算机执行时使得该计算机实现上述方法实施例中由终端设备执行的方法，或由网络设备(主节点或辅节点)执行的方法。
本申请实施例还提供一种通信系统，该通信系统包括上文实施例中的主节点、辅节点与终端设备。其中，该终端设备可以通过双连接技术，与主节点和辅节点建立无线链路。
作为一个示例，该通信系统包括：上文结合图3描述的实施例中的辅节点、主节点与终端设备。
作为另一示例，该通信系统包括：上文结合图4描述的实施例中的辅节点、主节点与终端设备。
作为再一示例，该通信系统包括：上文结合图5描述的实施例中的辅节点、主节点与终端设备。
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。其中，硬件层可以包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。操作系统层的操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。应用层可以包含浏览器、通讯录、文字处理软件、即时通信软件等应用。
本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构进行特别限定，只要能够通过运行记录有本申请实施例提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可。例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本文中使用的术语“制品”可以涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括但不限于：磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。
本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可以包括但不限于：无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
应理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit， CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(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)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)。例如，RAM可以用作外部高速缓存。作为示例而非限定，RAM可以包括如下多种形式：静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)可以集成在处理器中。
还需要说明的是，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的保护范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。此外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。例如，所述计算机可以是个人计算机，服务器，或者网络设备等。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，(SSD))等。例如，前述的可用介质可以包括但不限于：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种传输定时偏差的方法，其特征在于，包括：
    主节点获取第一小区与第二小区的定时偏差的测量值；
    所述主节点向所述辅节点发送所述定时偏差的测量值以及所述第二小区的标识信息；
    其中，所述第一小区为对应所述主节点的主小区，所述第二小区包括对应所述辅节点的主辅小区和/或不同于所述主辅小区的其他小区，所述第二小区的标识信息包括所述第二小区的物理小区标识PCI与频点信息。
  2. 根据权利要求1所述的方法，其特征在于，所述定时偏差的测量值与所述第二小区的标识信息携带在同一个信元中。
  3. 根据权利要求1或2所述的方法，其特征在于，所述定时偏差的测量值与所述第二小区的PCI携带在第一信元中，所述第二小区的频点信息携带在第二信元中，其中，所述第二小区的频点信息在所述第二信元的位置与所述定时偏差的测量值或所述第二小区的PCI在所述第一信元中的位置一一对应。
  4. 根据权利要求1所述的方法，其特征在于，所述定时偏差为系统帧号和帧定时偏差SFTD。
  5. 一种传输定时偏差的方法，其特征在于，包括：
    辅节点从主节点接收第一小区与第二小区的定时偏差的测量值以及所述第二小区的标识信息；
    所述辅节点获知所述第一小区与所述第二小区的定时偏差；
    其中，所述第一小区为对应所述主节点的主小区，所述第二小区包括对应所述辅节点的主辅小区和/或所述不同于所述主辅小区的其他小区，所述第二小区的标识信息包括所述第二小区的物理小区标识PCI与频点信息。
  6. 根据权利要求5所述的方法，其特征在于，所述定时偏差的测量值与所述第二小区的标识信息携带在同一个信元中。
  7. 根据权利要求5或6所述的方法，其特征在于，所述定时偏差的测量值与所述第二小区的PCI携带在第一信元中，所述第二小区的频点信息携带在第二信元中，其中，所述第二小区的频点信息在所述第二信元的位置与所述定时偏差的测量值或所述第二小区的PCI在所述第一信元中的位置一一对应。
  8. 根据权利要求5中所述的方法，其特征在于，所述定时偏差为系统帧号和帧定时偏差SFTD。
  9. 一种通信装置，其特征在于，包括：
    用于获取第一小区与第二小区的定时偏差的测量值的模块；
    用于向所述辅节点发送所述定时偏差的测量值以及所述第二小区的标识信息的模块；
    其中，所述第一小区为对应所述主节点的主小区，所述第二小区包括对应所述辅节点的主辅小区和/或不同于所述主辅小区的其他小区，所述第二小区的标识信息包括所述第二小区的物理小区标识PCI与频点信息。
  10. 根据权利要求9所述的装置，其特征在于，所述定时偏差的测量值与所述第二小 区的标识信息携带在同一个信元中。
  11. 根据权利要求9或10所述的装置，其特征在于，所述定时偏差的测量值与所述第二小区的PCI携带在第一信元中，所述第二小区的频点信息携带在第二信元中，其中，所述第二小区的频点信息在所述第二信元的位置与所述定时偏差的测量值或所述第二小区的PCI在所述第一信元中的位置一一对应。
  12. 根据权利要求9所述的装置，其特征在于，所述定时偏差为系统帧号和帧定时偏差SFTD。
  13. 一种通信装置，其特征在于，包括：
    用于从主节点接收第一小区与第二小区的定时偏差的测量值以及所述第二小区的标识信息的模块；
    用于获知所述第一小区与所述第二小区的定时偏差的模块；
    其中，所述第一小区为对应所述主节点的主小区，所述第二小区包括对应所述辅节点的主辅小区和/或不同于主辅小区的其他小区，所述第二小区的标识信息包括所述第二小区的物理小区标识PCI与频点信息。
  14. 根据权利要求13所述的通信装置，其特征在于，所述定时偏差的测量值与所述第二小区的标识信息携带在同一个信元中。
  15. 根据权利要求13或14所述的通信装置，其特征在于，所述定时偏差的测量值与所述第二小区的PCI携带在第一信元中，所述第二小区的频点信息携带在第二信元中，其中，所述第二小区的频点信息在所述第二信元的位置与所述定时偏差的测量值或所述第二小区的PCI在所述第一信元中的位置一一对应。
  16. 根据权利要求13所述的通信装置，其特征在于，所述定时偏差为系统帧号和帧定时偏差SFTD。
  17. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储计算机程序或指令，所述处理器用于执行存储器中的所述计算机程序或指令，使得权利要求1至4中任一项所述的方法，或权利要求5至8中任一项所述的方法被执行。
  18. 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，所述计算机程序或指令被执行时，使得权利要求1至4中任一项所述的方法，或权利要求5至8中任一项所述的方法被实现。
  19. 一种通信系统，其特征在于，包括主节点和辅节点，其中，所述主节点包括如权利要求9-12任一项所述的通信装置，所述辅节点包括如权利要求13-16任一项所述的通信装置。
  20. 如权利要求19所述的系统，其特征在于，还包括：终端设备，其中，所述终端设备用于向所述主节点发送第一小区与第二小区的定时偏差的测量值。
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