CN112738824A - Timing measurement method, device, equipment and storage medium - Google Patents
Timing measurement method, device, equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the application provides a timing measurement method, a timing measurement device, timing measurement equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps that after a terminal device is switched from a first measurement scene to a second measurement scene, timing information of a target cell measured in the first measurement scene is obtained; the first measurement scene is a scene in which the terminal equipment establishes connection with first network equipment; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and a second network device, and the target cell is a cell served by the second network device; and adjusting the starting time of a timer of the second network equipment according to the timing information of the target cell so as to enable the timing of the second network equipment to be consistent with the timing of the target cell. The method of the embodiment of the application improves the efficiency of timing measurement.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a timing measurement method, a timing measurement device, timing measurement equipment and a storage medium.
Background
With the development of communication technology, Long Term Evolution (LTE)/New Radio (NR) systems are increasingly widely used. Terminal equipment supporting Evolved-UMTS Terrestrial Radio Access (E-UTRA) NR Dual Connectivity (EN-DC) is also increasingly widely used.
In order to save hardware timer resources, for EN-DC terminal devices, the same set of hardware timer resources need to be reused when an LTE network measures an NR neighboring cell and when an NR network measures an NR neighboring cell. In the related art, before an NR connection is not established, inter-technology-RAT measurement needs to be performed on an NR neighboring cell configured by LTE; and then the LTE network selects an NR target cell configured with EN-DC according to the measurement result of the inter-RAT. Before the NR connection is established or released, the procedure of measuring the NR neighboring cell by LTE is stopped, and the NR connection is re-started after the NR connection is established or released, and a target cell established by the NR connection needs to be synchronized again, so that timing information is obtained, the timer of the NR system is adjusted, and the operation is complicated.
Disclosure of Invention
The embodiment of the application provides a timing measurement method, a timing measurement device, timing measurement equipment and a storage medium, so that the efficiency of timing measurement is improved.
In a first aspect, an embodiment of the present application provides a timing measurement method, including:
the method comprises the steps that after a terminal device is switched from a first measurement scene to a second measurement scene, timing information of a target cell measured in the first measurement scene is obtained; the first measurement scene is a scene in which the terminal equipment establishes connection with first network equipment; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and a second network device, and the target cell is a cell served by the second network device;
and adjusting the starting time of a timer of the second network equipment according to the timing information of the target cell so as to enable the timing of the second network equipment to be consistent with the timing of the target cell.
In a second aspect, an embodiment of the present application provides a timing measurement apparatus, including:
the terminal equipment comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring timing information of a target cell measured in a first measurement scene after the terminal equipment is switched from the first measurement scene to a second measurement scene; the first measurement scene is a scene in which the terminal equipment establishes connection with first network equipment; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and a second network device, and the target cell is a cell served by the second network device;
and a processing module, configured to adjust a start time of a timer of the second network device according to the timing information of the target cell, so that the timing of the second network device is consistent with the timing of the target cell.
In a third aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method of any one of the first aspect.
In a fourth aspect, an embodiment of the present application provides an electronic device, including:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the method of any of the first aspects via execution of the executable instructions.
In a fifth aspect, the present application provides a computer program product comprising a computer program that, when executed by a processor, implements the method according to any one of the first aspect.
According to the timing measurement method, the timing measurement device, the timing measurement equipment and the storage medium, after the terminal equipment is switched from the first measurement scene to the second measurement scene, the timing information of the target cell measured in the first measurement scene is obtained; the target cell is a cell served by the second network equipment; and adjusting the starting time of the timer of the second network equipment according to the measured timing information of the target cell so as to enable the timing of the second network equipment to be consistent with the timing of the target cell.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;
fig. 2 is an application scenario diagram provided in an embodiment of the present application;
FIG. 3 is a schematic flow chart diagram illustrating an embodiment of a timing measurement method provided herein;
FIG. 4 is a schematic flow chart diagram illustrating another embodiment of a timing measurement method provided herein;
FIG. 5 is a schematic structural diagram of an embodiment of a timing measurement apparatus provided in the present application;
fig. 6 is a schematic structural diagram of an embodiment of an electronic device provided in the present application.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms "comprising" and "having," and any variations thereof, in the description and claims of this application and the drawings described herein are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Firstly, the application scenario related to the present application is introduced:
the terminal device in the embodiment of the present application may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment.
The network device in the present application may be a Base Transceiver Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved NodeB (eNB) in Long Term Evolution (LTE) or enhanced Long Term Evolution (LTE), a next-generation evolved NodeB (next generation evolved node b), an Access Point (AP, AP) or a relay Station in WLAN, a gbb in 5G NR, a gsb in future communication network, and the like.
Fig. 1 is a schematic diagram of a network architecture provided in an embodiment of the present application, and the technical solution provided in the present application is based on the network architecture shown in fig. 1, where the network architecture includes at least one terminal device 100, and communicates with a first network device 200 and a second network device 300 through a wireless interface, and for clarity, only one terminal device, one first network device, and one second network device are shown in fig. 1.
The method of the embodiment of the application can be applied to a dual connectivity scenario, for example, when the method is applied to a terminal device supporting EN-DC, a Master Cell Group (MCG) and a Secondary Cell Group (SCG) are concepts in the dual connectivity scenario, and it can be simply understood that a Group in which a Cell that the terminal device first initiates Random Access (RACH) is an MCG. When the MCG is a cell group under LTE network and the SCG is a cell group under NR network, the dual connectivity is EN-DC, as shown in fig. 2.
In order to save hardware timer resources, for EN-DC terminal devices, the same set of hardware timer resources need to be reused when an LTE network measures an NR neighboring cell and when an NR network measures an NR neighboring cell. In the related art, before an NR connection is not established, inter-technology-RAT measurement needs to be performed on an NR neighboring cell configured by LTE; and then the LTE network selects an NR target cell configured with EN-DC according to the measurement result of the inter-RAT. Before the NR connection is established or released, the procedure of measuring the NR neighboring cell by LTE is stopped, and the NR connection is re-started after the NR connection is established or released, and a target cell established by the NR connection needs to be synchronized again, so that timing information is obtained, the timer of the NR system is adjusted, and the operation is complicated.
NR cells may perform measurements based on two different Reference signals, which are the synchronization Signal Block SS-Block and the Channel State Information measurement Reference Signal (CSI-RS), respectively; the CSI-RS only exists in a service state, and only SS-Block exists in standby.
NR adjacent regions measured by inter-RAT under LTE network are only measured based on SS-Block; NR networks under EN-DC dual connectivity, SS-Block and CSI-RS exist.
The time sequence relation among the timer of the NR network, the serving cell and the adjacent cell is as follows:
after reselecting or switching to the NR service cell, the timing of the local NR network is adjusted to be aligned with the air interface time sequence of the network; then, synchronizing and measuring adjacent cells based on the time sequence coordinate of the service cell;
the slot starting boundary and the symbol starting boundary of the adjacent region and the slot starting boundary and the symbol starting boundary of the NR network may not be aligned;
synchronously detecting each adjacent frequency point to obtain a deviation value of a slot boundary of each adjacent frequency point relative to the slot boundary of the NR network; and then, the measurement frequency points periodically receive data based on the time axis of the NR network, and the detected cells under the measurement frequency points calculate the positions of the self-measurement reference signals according to the deviation values to read and measure the data.
In the process of establishing the NR connection, the physical layer of the NR first receives a synchronization message that specifies an NR target cell and is issued by an NR Radio Resource Control (RRC), and a signaling process for establishing the NR connection can be performed only after the NR physical layer is synchronized to the NR target cell; and finally, after the NR connection is established, the NR network also configures NR adjacent cell measurement, and finally, the NR adjacent cell measurement configured by the LTE network and the NR adjacent cell measurement configured by the NR network coexist.
According to the method, the starting time of the timer of the second network equipment is adjusted by using the measured timing information of the target cell, so that the timing of the second network equipment is consistent with the timing of the target cell.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 3 is a schematic flowchart of an embodiment of a timing measurement method provided in the present application. As shown in fig. 3, the method provided by this embodiment includes:
Specifically, the first measurement scenario is a scenario in which the terminal device establishes a connection with the first network device, and the first network device configures neighbor measurement of the second network in the first measurement scenario; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and the second network device, and the second network device configures neighbor measurement of a second network in the second measurement scenario.
After the terminal device switches from the first measurement scenario to the second measurement scenario, the timing information of the target cell measured in the first measurement scenario, that is, the timing information of the target cell measured by the first network device, is obtained.
Assuming the following measurement scenarios exist, the following first network device takes a network device of an LTE network and a network device of an NR network as an example for explanation:
measurement scenario 1: the terminal equipment establishes connection with LTE network equipment, connection with NR network equipment is not established, the LTE network equipment configures NR neighbor cell measurement, and no service cell exists in an NR network;
measurement scenario 2: the EN-DC dual connection is already established, but the LTE network is not configured with NR neighbor measurement, and only the NR network is configured with NR neighbor measurement;
measurement scenario 3: the EN-DC dual connection is already established, and the NR network and the LTE network are both configured with measurement of NR adjacent regions.
The first measurement scenario may be measurement scenario 1, and the second measurement scenario may be measurement scenario 2 or measurement scenario 3.
Specifically, in step 101, the timing information of the target cell measured in the first measurement scenario is obtained, and then the start time of the timer of the second network device is adjusted according to the timing information of the target cell measured in the first measurement scenario, so that the timing of the second network device is consistent with the timing of the target cell.
TABLE 1
Table 1 shows the switching between measurement scenarios, whether or not timing adjustment of the second network device is required. If the measurement scenario 1 is switched to the measurement scenario 2 or switched to the measurement scenario 3, the timing adjustment of the second network device needs to be performed.
In one embodiment, the start time includes: a starting system frame number and a starting time of the starting system frame.
The start time of the timer of the second network is determined by the start SFN number and the start time of the start SFN.
In the method of this embodiment, after the terminal device switches from the first measurement scenario to the second measurement scenario, the timing information of the target cell measured in the first measurement scenario is acquired; the target cell is a cell served by the second network equipment; and adjusting the starting time of the timer of the second network equipment according to the measured timing information of the target cell so as to enable the timing of the second network equipment to be consistent with the timing of the target cell.
On the basis of the above embodiment, the following operations may be performed before step 101:
after receiving the synchronization request of the target cell, the terminal device determines whether the first network device of the terminal device configures neighbor cell measurement of a second network device;
if the neighbor cell measurement of the second network device is configured, determining whether the neighbor cell of the second network measured in the first measurement scenario includes the target cell; and if the target cell is included, executing the operation of the timing information of the target cell measured in the first measurement scene.
Specifically, after receiving a synchronization request of a target cell, a terminal device determines whether a first network device configures neighbor cell measurement of a second network device, and if the first network device configures neighbor cell measurement of the second network device, determines whether a neighbor cell of the second network measured in a first measurement scenario includes the target cell, that is, whether a neighbor cell of the second network measured by the first network device includes the target cell; if the target cell is included, executing the operation of step 101;
and if not, measuring the timing information of the target cell through the second network equipment, acquiring the timing information measured by the target cell in a second measurement scene, and adjusting the starting time of a timer of the second network equipment according to the timing information measured by the target cell in the second measurement scene.
If the first network device does not configure the neighbor cell measurement of the second network device, the timing information of the target cell can be measured by the second network device, the timing information measured by the target cell in the second measurement scenario is obtained, and then the starting time of the timer of the second network device is adjusted according to the timing information measured by the target cell in the second measurement scenario.
In an embodiment, step 102 may be specifically implemented as follows:
determining a first time difference between the current time of the timer and the starting time corresponding to the target cell according to the timing information of the target cell and the current time of the timer;
determining a first moment according to the first time difference and the current time of the timer;
adjusting a start time of a timer of the second network device to the first time.
Specifically, a first time difference between the current time of the timer and the start time corresponding to the target cell is determined according to the timing information of the target cell and the current time of the timer, assuming that the first time difference is t1, according to the first time difference t1 and the current time of the timer is t2, the first time is t2+ t1, and the start time of the timer of the second network device is adjusted to the first time.
In an embodiment, assuming that the second network is an NR network, the timer of the NR network is adjusted by using the measured timing information of the target cell, so that the start System Frame Number (SFN) of the NR network and the start time of the start System Frame are both aligned with the timing of the target cell.
Further, the adjustment amount of the timer of the NR network, including the adjustment amount of the SFN and the adjustment amount of the start time of the start system frame, can be recorded as delta _ SFN and delta _ offset, respectively.
For example, the starting system frame number in the current time of the timer is N1, the starting time of the starting system frame N1 is t1, the starting system frame number of the target cell is N2, the starting time of the starting system frame N2 is t2, and the first time difference between the current time of the timer and the starting time corresponding to the target cell includes the interval N2-N1 of the system frame numbers and the time difference t2-t1 of the starting time of the system frame; determining a starting system frame number N2 and a starting time of the starting system frame number t2 at the first moment, adjusting the starting time of the timer of the second network device to be the starting system frame number N2 and the starting time of the starting system frame N2 to be t2, so that the system frame number of the second network and the starting time of the system frame are aligned with the target cell.
For example, the starting system frame number in the current time of the timer is 15, the starting time of the starting system frame 15 is t1, the starting system frame number of the target cell is 20, the starting time of the starting system frame 20 is t2, the interval of the system frame numbers in the first time difference between the current time of the timer and the starting time corresponding to the target cell is 5 system frames, and the time difference of the starting times of the system frames is t2-t 1; the start time of the timer of the second network device is adjusted to be the start system frame number 20, and the start time of the start system frame 20 is t 2.
In the foregoing embodiment, the starting time of the timer of the second network device is adjusted according to the measured timing information of the target cell, so that the timing of the second network device is consistent with the timing of the target cell.
In one embodiment, the timing measurement method further includes:
and correcting the timing information of other cells measured in the first measurement scene according to the first time difference.
Specifically, after the start time of the timer is adjusted, the timing information of the other cells measured in the first measurement scenario needs to be corrected according to the first time difference, so that the timing of the other cells is consistent with the timing of the second network device.
TABLE 2
Table 2 shows whether the measurement scenarios are switched, whether the timing adjustment of the second network device is required, and whether the timing of other NR neighbor cells needs to be corrected. If the measurement scene 1 is switched to the measurement scene 2 or switched to the measurement scene 3, the timing of the second network device needs to be adjusted, and the timing of other NR neighboring cells needs to be corrected.
In the above embodiment, after the start time of the timer of the second network device is adjusted, the timing information of the other cell measured in the first measurement scenario is corrected, so that the timing of the other cell is consistent with the adjusted timing of the second network device.
In one embodiment, the timing measurement method includes:
after the terminal device is switched from a first cell to a second cell, adjusting the starting time of a timer of the second network device according to the timing information of the second cell measured in the second measurement scene; the first cell and the second cell are cells serving the second network device.
Specifically, assuming that the terminal device is in the second measurement scenario, after the terminal device is handed over from the first cell served by the second network device to the second cell, the timer of the second network device is adjusted according to the timing information of the second cell measured in the second measurement scenario, that is, the timing information of the second cell measured by the second network device, so that the timing of the second network device is consistent with the timing of the second cell.
Further, the step of "adjusting the start time of the timer of the second network device" may be specifically implemented by:
determining a second time difference between the current time of the timer and the starting time corresponding to the second cell according to the timing information of the second cell and the current time of the timer;
determining a second moment according to the second time difference and the current time of the timer;
adjusting a start time of a timer of the second network device to the second time.
Specifically, a second time difference between the current time of the timer and the start time corresponding to the target cell is determined according to the timing information of the second cell and the current time of the timer, and assuming that the second time difference is t1 ', the second time is t2 ' + t1 ' according to the second time difference t1 ' and the current time of the timer is t2 ', and the start time of the second network device timer is adjusted to the second time.
In the above embodiment, when an NR physical layer receives timing information sent by a higher layer to synchronize a target NR cell for handover when an EN-DC NR cell is handed over to another NR cell, the NR physical layer checks the timing information stored in the NR cell, and then adjusts the start time of the NR system timer according to the timing information of the NR cell, and records an adjustment amount.
In the solution of this embodiment, the implementation principle and the technical effect are similar to those of the foregoing switching from the first measurement scenario to the second measurement scenario, and details are not repeated here.
In one embodiment, as shown in fig. 4, the timing measurement method includes the following steps:
if yes, go to step 403, check if the NR target cell is in the NR neighboring cell measured by LTE; if not, ending;
if yes, executing step 404, obtaining the timing information of the NR target cell in the timer of the current NR network, which is measured by the LTE network; if not, ending;
the SFN adjustment amount, i.e. the interval between the timing information of the NR target cell and the system frame number in the current time of the timer.
In the method of the embodiment, under an EN-DC scenario, the same hardware timer resource is multiplexed by the LTE measurement NR neighboring cell and the NR measurement NR neighboring cell of the same card in the terminal device; after the LTE starts to measure the NR adjacent region, the set of hardware timer resources of the NR is started, and at the moment, the setting of the slot starting boundary is not required, and the slot starting boundary can be randomly set or aligned with the slot starting boundary of the LTE network; after the NR network configures the NR connection of EN-DC, when the high layer requires the NR physical layer to synchronize a target cell, the NR physical layer checks the timing information (the timing information measured by the LTE network) stored in the target cell, then adjusts the starting time of a timer of the NR network according to the timing information of the cell, records the adjustment amount, and then corrects the timing information obtained by the measurement of other stored NR cells; then, the measurement of the NR adjacent region configured by the LTE and the measurement of the NR adjacent region configured by the NR are both carried out on the adjusted timer of the NR network; the timer of the NR network, as well as the timing of other measuring cells, can be kept unchanged at the time of connection release of the NR.
Fig. 5 is a schematic structural diagram of an embodiment of a timing measurement apparatus provided in the present application, and as shown in fig. 5, the timing measurement apparatus of the present embodiment includes:
an obtaining module 110, configured to obtain timing information of a target cell measured in a first measurement scenario after a terminal device switches from the first measurement scenario to a second measurement scenario; the first measurement scene is a scene in which the terminal equipment establishes connection with first network equipment; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and a second network device, and the target cell is a cell served by the second network device;
a processing module 111, configured to adjust a start time of a timer of the second network device according to the timing information of the target cell, so that the timing of the second network device is consistent with the timing of the target cell.
In a possible implementation manner, the processing module 111 is specifically configured to:
determining a first time difference between the current time of the timer and the starting time corresponding to the target cell according to the timing information of the target cell and the current time of the timer;
determining a first moment according to the first time difference and the current time of the timer;
adjusting a start time of a timer of the second network device to the first time.
In one possible implementation, the processing module 111 is further configured to:
and correcting the timing information of other cells measured in the first measurement scene according to the first time difference.
In one possible implementation, the start time includes: a starting system frame number and a starting time of the starting system frame.
In one possible implementation, the processing module 111 is further configured to:
after the terminal device is switched from a first cell to a second cell, adjusting the starting time of a timer of the second network device according to the timing information of the second cell measured in the second measurement scene; the first cell and the second cell are cells serving the second network device.
In a possible implementation manner, the processing module 111 is specifically configured to:
determining a second time difference between the current time of the timer and the starting time corresponding to the second cell according to the timing information of the second cell and the current time of the timer;
determining a second moment according to the second time difference and the current time of the timer;
adjusting a start time of a timer of the second network device to the second time.
In one possible implementation, the obtaining module 110 is further configured to:
after receiving the synchronization request of the target cell, the terminal equipment determines whether the first network equipment of the terminal equipment configures the neighbor cell measurement of the second network equipment;
if the neighbor cell measurement of the second network device is configured, determining whether the neighbor cell of the second network measured in the first measurement scenario includes the target cell; and if the target cell is included, executing the operation of acquiring the timing information of the target cell measured in the first measurement scene.
The apparatus of this embodiment may be configured to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
Fig. 6 is a schematic structural diagram of an embodiment of an electronic device provided in the present application, and as shown in fig. 6, the electronic device includes:
a processor 210, and a memory 211 for storing executable instructions for the processor 210.
Optionally, the method may further include: a communication interface 212 for enabling communication with other devices.
The above components may communicate over one or more buses.
The processor 210 is configured to execute the corresponding method in the foregoing method embodiment by executing the executable instruction, and the specific implementation process of the method may refer to the foregoing method embodiment, which is not described herein again.
The embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method in the foregoing method embodiment is implemented.
An embodiment of the present application further provides a computer program product, including a computer program, where the computer program is executed by a processor to implement the method according to any one of the foregoing method embodiments, and specific implementation processes thereof may refer to the foregoing method embodiments, which implement similar principles and technical effects, and are not described herein again.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. A timing measurement method, comprising:
the method comprises the steps that after a terminal device is switched from a first measurement scene to a second measurement scene, timing information of a target cell measured in the first measurement scene is obtained; the first measurement scene is a scene in which the terminal equipment establishes connection with first network equipment; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and a second network device, and the target cell is a cell served by the second network device;
and adjusting the starting time of a timer of the second network equipment according to the timing information of the target cell so as to enable the timing of the second network equipment to be consistent with the timing of the target cell.
2. The method of claim 1, wherein the adjusting the starting time of the timer of the second network device according to the timing information of the target cell comprises:
determining a first time difference between the current time of the timer and the starting time corresponding to the target cell according to the timing information of the target cell and the current time of the timer;
determining a first moment according to the first time difference and the current time of the timer;
adjusting a start time of a timer of the second network device to the first time.
3. The method of claim 2, further comprising:
and correcting the timing information of other cells measured in the first measurement scene according to the first time difference.
4. The method of any of claims 1-3, wherein the starting time comprises: a starting system frame number and a starting time of the starting system frame.
5. The method according to any one of claims 1-3, further comprising:
after the terminal device is switched from a first cell to a second cell, adjusting the starting time of a timer of the second network device according to the timing information of the second cell measured in the second measurement scene; the first cell and the second cell are cells serving the second network device.
6. The method of claim 5, wherein the adjusting the starting time of the timer of the second network device according to the timing information of the second cell comprises:
determining a second time difference between the current time of the timer and the starting time corresponding to the second cell according to the timing information of the second cell and the current time of the timer;
determining a second moment according to the second time difference and the current time of the timer;
adjusting a start time of a timer of the second network device to the second time.
7. The method according to any of claims 1-3, wherein before the obtaining the timing information of the target cell measured in the first measurement scenario, further comprising:
after receiving the synchronization request of the target cell, the terminal device determines whether the first network device of the terminal device configures neighbor cell measurement of a second network device;
if the neighbor cell measurement of the second network device is configured, determining whether the neighbor cell of the second network measured in the first measurement scenario includes the target cell; and if the target cell is included, executing the operation of acquiring the timing information of the target cell measured in the first measurement scene.
8. A timing measurement device, comprising:
the terminal equipment comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring timing information of a target cell measured in a first measurement scene after the terminal equipment is switched from the first measurement scene to a second measurement scene; the first measurement scene is a scene in which the terminal equipment establishes connection with first network equipment; the second measurement scenario is a scenario in which the terminal device establishes dual connectivity with the first network device and a second network device, and the target cell is a cell served by the second network device;
and a processing module, configured to adjust a start time of a timer of the second network device according to the timing information of the target cell, so that the timing of the second network device is consistent with the timing of the target cell.
9. An electronic device, comprising:
a processor, a memory, an interface to communicate with other devices;
the memory stores computer-executable instructions;
the processor executing the computer-executable instructions stored by the memory causes the processor to perform the timing measurement method of any of claims 1 to 7.
10. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, are configured to implement the timing measurement method of any one of claims 1 to 7.
11. A computer program product comprising a computer program, characterized in that the computer program realizes the method according to any of claims 1-7 when executed by a processor.
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| CN202011568896.5A CN112738824B (en) | 2020-12-25 | 2020-12-25 | Timing measurement method, device, equipment and storage medium |
| PCT/CN2021/131316 WO2022134959A1 (en) | 2020-12-25 | 2021-11-17 | Timing measurement method and apparatus, and device and storage medium |
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| CN112738824B (en) | 2022-11-29 |
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