CN114246001B

CN114246001B - Wireless communication method, device and communication equipment

Info

Publication number: CN114246001B
Application number: CN201980099414.5A
Authority: CN
Inventors: 刘建华; 付喆
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2024-09-24
Anticipated expiration: 2039-10-23
Also published as: WO2021077319A1; CN114246001A

Abstract

The application provides a wireless communication method, a wireless communication device and communication equipment, comprising the following steps: the method comprises the steps that core network equipment determines whether indication information is sent to access network equipment or not, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to terminal equipment; and under the condition that the indication information is sent to the access network equipment, the core network equipment sends the indication information to the access network equipment. According to the wireless communication method provided by the embodiment of the application, the core network equipment can send the indication information to the access network equipment or not send the indication information to the access network equipment, and the high-precision reference clock information sent by the access network equipment to the terminal equipment occupies a certain air interface resource, so that the waste of resources can be avoided as much as possible by sending the indication information to the access network equipment or not sending the indication information to the access equipment through the core network equipment.

Description

Wireless communication method, device and communication equipment

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a wireless communication method, a wireless communication device and communication equipment.

Background

With the continued development of the communication industry, new networks, such as Time Sensitive Networks (TSNs), are increasingly being used in communication systems. Among the TSN networks, the 5G network will serve as a TSN bridge (TSN bridge) for the TSN network and traffic. In this regard, the third generation partnership project 5G system (3rd Generation Partnership Project 5G system,3GPP 5GS) needs to provide lower latency guarantees and higher clock synchronization accuracy.

In some scenarios, propagation delay compensation is required, and can be compensated by network equipment or terminal equipment at present. In the way of propagation delay, the network device broadcasts high-precision reference clock information, which occupies more air interface resources, and when the terminal device in one cell does not support or does not need to use the characteristics related to the high-precision clock, the resource waste is caused.

Therefore, how to avoid the waste of resources in the propagation delay compensation process is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a wireless communication device and communication equipment, which can avoid resource waste as much as possible.

In a first aspect, a wireless communication method is provided, including: the method comprises the steps that core network equipment determines whether indication information is sent to access network equipment or not, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to terminal equipment; and under the condition that the indication information is sent to the access network equipment, the core network equipment sends the indication information to the access network equipment.

In a second aspect, there is provided a wireless communication method comprising: the method comprises the steps that an access network device receives indication information sent by a core network device, wherein the indication information is used for indicating the access network device to send or not send high-precision reference clock information to a terminal device; and the access network equipment determines to send or not send the high-precision reference clock information to the terminal equipment according to the indication information.

In a third aspect, there is provided a wireless communication apparatus comprising: the processing module is used for determining whether to send indication information to the access network equipment, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to the terminal equipment; and the communication module is used for sending the indication information to the access network equipment under the condition of determining to send the indication information to the access network equipment.

In a fourth aspect, there is provided a wireless communication apparatus comprising: the communication module is used for receiving indication information sent by the core network equipment, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to the terminal equipment; and the processing module is used for determining to send or not to send the high-precision reference clock information to the terminal equipment according to the indication information.

In a fifth aspect, a communication device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or the second aspect or each implementation manner thereof.

In a sixth aspect, a chip is provided for implementing the method in the first aspect or each implementation manner thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in the first aspect or implementations thereof described above.

In a seventh aspect, a chip is provided for implementing the method in the second aspect or each implementation manner thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in the second aspect or implementations thereof described above.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, where the computer program causes a computer to execute the method in the first aspect or each implementation manner thereof.

In a ninth aspect, a computer-readable storage medium is provided for storing a computer program, which causes a computer to perform the method of the second aspect or implementations thereof.

In a tenth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the first aspect or implementations thereof.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the second aspect or implementations thereof.

In a twelfth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect or implementations thereof described above.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the second aspect or implementations thereof described above.

Before the access network device sends the high-precision reference clock information to the terminal device, the core network device can indicate whether the access network device can send the high-precision reference clock information to the terminal device by sending the indication information to the access network device or not sending the indication information to the access network device, and the access network device sends the high-precision reference clock information to the terminal device to occupy a certain air interface resource, so that the waste of resources can be avoided as much as possible by sending the indication information to the access network device or not sending the indication information to the access device through the core network device.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a schematic diagram of clock synchronization timing relationship between a terminal device and a network device according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application;

fig. 4 is a schematic flow chart of a wireless communication method provided by another embodiment of the present application;

Fig. 5 is a schematic block diagram of a wireless communication device according to an embodiment of the present application;

fig. 6 is a schematic block diagram of a wireless communication device according to another embodiment of the present application;

Fig. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 8 is a schematic block diagram of a chip provided by an embodiment of the present application;

Fig. 9 is a schematic block diagram of a communication system provided in an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), general Packet Radio Service (GPRS), long term evolution (Long Term Evolution, LTE), LTE frequency division duplex (Frequency Division Duplex, FDD), LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) or 5G systems, and the like.

An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include Access and mobility management functions 101 (ACCESS AND Mobility Management Function, AMF), session management functions 102 (Session Management Function, SMF), policy control functions 103 (Policy Control Function, PCF), user Equipment 104 (User Equipment, UE) (where the UE may also be referred to as a terminal device), access Network 105 (AN) or radio Access Network Radio Access Network, RAN), user plane functions 106 (User Plane Function, UPF), unified data management 107 (Unified DATA MANAGEMENT, UDM), network element functions 108 (Network Exposure Function, NEF), network End 109 of a Bridge (Network Side of Bridge, NSB), device End 116 of a Bridge (DEVICE SIDE of Bridge, DSB), time sensitive Network system 112 (TIME SENSITIVE Networking System, TSNS), and TSN Bridge/End Station 118 (TSN Bridge/End Station).

Among them, an application layer function 110 (Application Function as TSN Translator, AF as TSN Translator) (Control Plane (CP)) and a TSN converter 111 (User Plane (UP)) as a TSN converter may be included in the NSB, a TSN centralized User configuration 113 (TSN Centralized User Configuration, TSN CUC), a TSN centralized network configuration 114 (TSN Centralized Network Configuration, TSN CNC) and a TSN bridge/terminal 115 may be included in the TSNS, and a TSN converter (device) 117 and a UE104 may be included in the dsb.

The AMF is responsible for mobility management and is connected with the UE, the AN or the RAN, the SMF and the UDM, the SMF is responsible for session management, the UPF, the UDM and the PCF, the PCF is responsible for policy control, the PCF can be connected with the SMF, the NEF and the AF serving as a TSN converter, the UDM is responsible for subscription data management, and the NEF is responsible for externally opening network data.

The respective devices may have different interfaces therebetween, for example, N1 is AN interface between the connection UE and the AMF, N2 is AN interface between the connection AMF and the AN or RAN, N3 is AN interface between the connection AN or RAN and the UPF, N4 is AN interface between the connection SMF and the UPF, N5 is AN interface between the connection PCF and the AF as the TSN converter, N6 is AN interface between the connection UPF and the TSN converter, N7 is AN interface between the connection SMF and the PCF, N8 is AN interface between the connection AMF and the UDM, N9 is AN interface between the UPF, N10 is AN interface between the connection UDM and the SMF, N11 is AN interface between the connection AMF and the SMF, N33 is AN interface between the connection NEF and the AF as the TSN converter, and N60 is AN interface between the connection UE and the TSN converter (device).

"Terminal devices 104" in the communication system 100 include, but are not limited to, connections via wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or an internet of things (Internet of Things, ioT) device. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that may include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

For a clearer understanding of the present application, a brief description of the relevant content regarding a TSN (in some embodiments, the TSN may also be referred to as a Time Sensitive Communication (TSC)) is provided below, which facilitates a subsequent understanding of the aspects of the present application. It should be understood that the following description is only for better understanding of the present application and should not be construed as limiting the present application in any way.

Currently, the demands in the 5G industrial internet of things (Industrial Internet of Things, IIoT) support industrial automation (Factory Automation), transmission automation (Transport Industry), intelligent power (ELECTRICAL POWER DISTRIBUTION) and other services in the 5G system. IIoT introduced the concept of TSN networks or TSCs based on their latency and reliability requirements for transmission. As shown in fig. 1, in the TSN network, the 5G network will serve as a TSN bridge to provide services for the TSN network and the traffic. In this regard, 5G systems need to provide lower latency guarantees and higher clock synchronization accuracy. So that the operation and connection of each point of the mechanical operation are accurate and meet the time requirement when the industrial automation service is transmitted in the 5G network.

Based on the requirement of TSN service transmission, when TSN service is transmitted in 5G, the requirement of time synchronization precision of 1us needs to be met. As shown in fig. 2, if the time accuracy of 1us can be achieved, the time synchronization accuracy (accuracy) notified by the network and the time synchronization accuracy error (delta) at the UE side are related from the air interface, and the synchronization error at the UE side is determined by the RAN1, and the error is related to many factors, such as propagation loss, device limitation, and the like.

The network-notified time synchronization information and time synchronization accuracy information are contained in a clock reference information element (TIME REFERENCE Information Information Element, TRIIE).

In some scenes, propagation delay compensation is required, and the time synchronization precision error of the physical layer can be within a required range, so that the time synchronization precision requirement of 1us is met when TSN service is transmitted in 5G. For example, the propagation delay compensation may be performed using a time advance (TIMING ADVANCE, TA).

In a communication system, for UEs in different states, the TA may be acquired in different ways. If the UE is in Idle state (Idle) or Inactive state (Inactive), the UE may acquire TA through an initial Access procedure of Random Access (RA) procedure, so that synchronous calibration may be performed, because the UE does not maintain time synchronization with the network side; if the UE is in a Connected state (Connected), the UE may acquire a TA according to a timing advance Command (TA Command, TAC) sent by the network, so that synchronous calibration may be performed.

Existing conditions that may trigger the RA procedure include the following:

(1) Initial access from radio resource control-IDLE state (Radio Resource Control _idle, rrc_idle);

(2) RRC connection reestablishment procedure;

(3) And (5) handover;

(4) Downlink (DL) or UL data arrives during the RRC connected state when the Uplink (UL) synchronization state is "unsynchronized";

(5) Transition from RRC inactive state;

(6) Establishing time alignment when adding Secondary cells (scells);

(7) Other system information is required (SystemInformation, SI);

(8) Beam failure recovery.

Based on the TAC or RA procedure described above, the uplink frame transmission advance may be (N _TA+N_{TA offset})×T_C; where N _TA is related to the TAC or the TAC carried in the random access response (Random Access Response, RAR).

For the scene of TAC carried by RAR, N _TA＝T_A×16×64/2^u; wherein T _A is a value indicated by TAC, and the value may be 0,1, 2. For the scene of TAC carried in the dedicated TAC medium access control unit (TAC MEDIA ACCESS Control Control Element, TAC MAC CE), N _{TA_new}＝N_{TA_old}+(T_A-31)×16×64/2^u; wherein T _A is a value indicated by TAC, and the value may be 0,1, 2. The value of N _{TA offset} can be as shown in Table 1. Wherein, FR in Frequency Range1 (Frequency Range1, FR 1) can be 450MHz-600MHz, and can also be called Sub-6GHz (Sub-6 GHz); FR in FR2 may be 24250MHz-52600MHz, also referred to as upper-6 GHz (Above-6 GHz) or millimeter wave.

TABLE 1

In addition, T _C is the minimum time unit of the physical layer, T _C＝1/(Δf_maxN_f); where Δf _max＝480×10³ Hz, nf=4096.

As for the accuracy of TA, the adjustment accuracy of TA is required in the radio access network 4 th conference (RAN 4), and as shown in table 2, the adjustment accuracy required for different subcarrier intervals is required.

TABLE 2

Subcarrier spacing (kHz)	15	30	60	120
					UE TA adjustment accuracy (T _C)	±256	±256	±128	±32

As can be seen from table 2, the UE can adjust the TA accuracy in the range (-256 to +256) T _C for the band with the subcarrier spacing of 15kHz, in the range (-256 to +256) T _C for the band with the subcarrier spacing of 30kHz, in the range (-128 to +128) T _C for the band with the subcarrier spacing of 60kHz, and in the range (-32 to +32) T _C for the band with the subcarrier spacing of 120 kHz.

There are two current ways of propagation delay compensation, one by the network device and the other by the UE. For the method of network device compensation, the time synchronization information received by the UE includes time synchronization information after the network compensates for propagation delay.

In the way of propagation delay, the network device broadcasts high-precision reference clock information, which occupies more air interface resources, and when the terminal device in one cell does not support or does not need to use the characteristics related to the high-precision clock, the resource waste is caused.

Therefore, the embodiment of the application provides a wireless communication method, which can avoid resource waste as much as possible.

The wireless communication method provided by the embodiment of the application is described in detail below with reference to fig. 3.

As shown in fig. 3, a schematic flow chart of a wireless communication method 300 provided in accordance with an embodiment of the present application is shown, which may include steps 310-320.

The core network device determines whether to send indication information to the access network device, where the indication information is used to instruct the access network device to send or not send high-precision reference clock information to the terminal device 310.

The core network device in the embodiment of the present application may be an AMF in fig. 1, so that the AMF may send the indication information to the access network device.

The high-precision reference clock information in the embodiment of the present application may be clock information corresponding to TSN or TSC, or may also be reference information corresponding to a high-precision clock (for example, with a precision of 10 ns), which is not particularly limited in the present application.

At 320, the core network device sends indication information to the access network device in case it is determined to send indication information to the access network device.

It is noted above that the core network device may send indication information to the access network device to indicate whether the access network device may send high precision reference clock information to the terminal device, and what the core network device determines the indication information indicates will be described below.

Optionally, in some implementations, the method further comprises: the core network device determines the indication information according to first information, wherein the first information comprises at least one of the following information: capability information and/or local policy of the core network device; capability information and/or usage information of the terminal device; service attribute information of the terminal equipment; the terminal device establishes attributes of a protocol data unit (Protocol Data Unit, PDU) session and/or a quality of service (Quality of Service, qoS) flow.

In the embodiment of the application, the core network device can determine the indication information according to the first information, namely, determine whether the access network device sends the high-precision reference clock information to the terminal device. Specifically, the included content of the indication information may be determined by capability information of the core network device and/or a local policy, for example, whether the core network device has the capability of TSN characteristics, or whether the core network device may initiate characteristics related to the high-precision reference clock based on the local policy; the included content of the indication information may also be determined by capability information and/or usage information of the terminal device, for example, according to capability information and/or usage information of the terminal device registered in the core network device, or according to capability information and/or usage information of the registered terminal device in the specific area; it is also possible to determine, through the service attribute information of the terminal device, the included content of the indication information, for example, whether or not there is a high-precision reference clock-related service in the service attribute of the terminal device; the included content of the indication information may also be determined by the properties of the PDU session and/or QoS flow established by the terminal device, e.g. whether there are characteristics related to the high precision reference clock in the PDU session and/or QoS flow established by the terminal device, etc.; the present application is not particularly limited thereto.

The above describes that the core network device may determine the content included in the indication information based on the first information, which may be the above-listed information, and the core network device will specifically describe the content included in the indication information based on the information from the above-listed information, respectively.

Optionally, in some embodiments, in a case that the first information includes capability information and/or a local policy of the core network device, the core network device determines the indication information according to the first information, including: and if the core network equipment has the capability of the characteristic related to the high-precision reference clock or determines that the core network equipment starts the characteristic related to the high-precision reference clock based on the local strategy, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment.

And if the core network equipment does not have the capability of the characteristic related to the high-precision reference clock or the characteristic related to the high-precision reference clock is determined not to be started by the core network equipment based on the local strategy, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, if the core network device has the capability of the characteristic related to the high-precision reference clock, for example, the capability of TSN or TSC, or the characteristic related to the high-precision reference clock, for example, the TSN or TSC, which can be started by the core network device based on the local policy is determined, the core network device can send the indication information for indicating the access network device to send the high-precision reference clock information to the terminal device to the access network device. The access network device may send the high-precision reference clock information to the terminal device after receiving indication information indicating that the access network device sends the high-precision reference clock information to the terminal device.

If the core network device does not have the capability of the high precision reference clock related characteristics, e.g. TSN or TSC capability, or it is determined based on a local policy that the core network device is not capable of initiating the high precision reference clock related characteristics, e.g. TSN or TSC characteristics, the core network device may not send indication information to the access network device instructing the access network device to send high precision reference clock information to the terminal device, or the core network device may send indication information to the access network device instructing the access network device not to send high precision reference clock information to the terminal device. Correspondingly, if the access network device does not receive the indication information for indicating the access network device to send or not send the high-precision reference clock information to the terminal device, the high-precision reference clock information may not be sent to the terminal device; or if the access network device receives the indication information indicating that the access network device does not send the high-precision reference clock information to the terminal device, the high-precision reference clock information may not be sent to the terminal device.

Optionally, in some embodiments, the capability information and/or the usage information of the terminal device includes at least one of the following information: capability information and/or usage information of the terminal device registered in the core network device; capability information and/or usage information of the terminal device registered in a specific area.

Optionally, in some embodiments, in a case where the first information includes capability information and/or usage information of the terminal device registered with the core network device, the core network device determines the indication information according to the first information, including: and if the terminal equipment registered in the core network equipment supports a high-precision reference clock and/or the high-precision reference clock needs to be used, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment.

And if the terminal equipment registered in the core network equipment does not support the high-precision reference clock and/or does not need to use the high-precision reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, the core network device can be judged according to the capability information and/or the use information of the terminal device registered in the core network device. If there is a terminal device supporting the high-precision reference clock and/or requiring the use of the high-precision reference clock registered in the terminal device of the core network device, the core network device may send indication information to the access network device, which may instruct the access network device to send the high-precision reference clock information to the terminal device. The access network device may send the high-precision reference clock information to the terminal device after receiving indication information indicating that the access network device sends the high-precision reference clock information to the terminal device.

Specifically, assuming that the terminal devices registered in the core network device include 10 terminal devices, where at least one of the 10 terminal devices supports the high-precision reference clock and/or needs to use the high-precision reference clock, the core network device may send, to the access network device, indication information indicating that the access network device sends, to the terminal device, high-precision reference clock information. In this case, the core network device may send high precision reference clock information to all access network devices connected to the core network device.

If the terminal device registered in the core network device does not have a terminal device supporting the high-precision reference clock and/or does not need to use the high-precision reference clock, the core network device may not send indication information to the access network device, or the core network device may also send indication information to the access network device, where the indication information indicates that the access network device does not send the high-precision reference clock information to the terminal device. Correspondingly, if the access network device does not receive the indication information indicating that the access network device sends or does not send the high-precision reference clock information to the terminal device, the access network device may not send the high-precision reference clock information to the terminal device; or if the access network device receives the indication information indicating that the access network device does not send the high-precision reference clock information to the terminal device, the access network device may not send the high-precision reference clock information to the terminal device.

Specifically, assuming that the terminal devices registered in the core network device include 10 terminal devices, where none of the 10 terminal devices supports the high-precision reference clock and/or needs to use the high-precision reference clock, the core network device may not send indication information indicating that the access network device sends the high-precision reference clock information to the terminal device to the access network device, or the core network device may send indication information indicating that the access network device does not send the high-precision reference clock information to the terminal device to the access network device.

It is to be understood that the above values are merely illustrative, and other values are also possible, and the present application is not limited thereto.

Optionally, in some embodiments, in a case where the first information includes capability information and/or usage information of the terminal device registered in the specific area, the core network device determines the indication information according to the first information, including:

And if the terminal equipment registered in the specific area supports a high-precision reference clock and/or the high-precision reference clock needs to be used, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment.

And if the terminal equipment registered in the specific area does not support the high-precision reference clock and/or does not need to use the high-precision reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the specific area includes a registration area and/or a specific cell of the terminal device.

In the embodiment of the application, the core network device can determine the content included in the indication information according to whether the terminal device registered in the specific area supports the high-precision reference clock and/or the high-precision reference clock needs to be used. Assuming that the terminal device registered in the registration area of the terminal device and/or the movement restriction area of the terminal device supports the high-precision reference clock and/or the terminal device that needs to use the high-precision reference clock, the core network device may send indication information to the access network device, which indicates that the access network device sends the high-precision reference clock information to the terminal device. The access network device may send the high-precision reference clock information to the terminal device after receiving indication information indicating that the access network device sends the high-precision reference clock information to the terminal device.

Assuming that the terminal device registered in the registration area of the terminal device and/or the movement restriction area of the terminal device does not support the high-precision reference clock and/or does not require the terminal device using the high-precision reference clock, the core network device may not transmit indication information to the access network device, which indicates that the access network device does not transmit the high-precision reference clock information to the terminal device, or the core network device may transmit indication information to the access network device, which indicates that the access network device does not transmit the high-precision reference clock information to the terminal device. Correspondingly, if the access network device does not receive the indication information indicating that the access network device sends or does not send the high-precision reference clock information to the terminal device, the access network device may not send the high-precision reference clock information to the terminal device; or if the access network equipment receives the indication signal indicating that the access network equipment does not send the high-precision reference clock information to the terminal equipment, the access network equipment does not need to send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the method further comprises: the core network equipment receives the information of the registration area of the terminal equipment reported by the access network equipment; and/or the core network equipment acquires the information of the specific cell from the subscription information of the terminal equipment.

Optionally, in some embodiments, the specific cell is a movement restriction area of the terminal device.

The specific cell in the embodiment of the application can be a movement limiting area of the terminal equipment, namely, the core network equipment can acquire the information of the movement limiting area of the terminal equipment from the subscription information of the terminal equipment.

Optionally, in some embodiments, in a case where the first information includes service attribute information of the terminal device, the core network device determines the indication information according to the first information, including: and if the service attribute information of the terminal equipment contains the service related to the high-precision reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment.

And if the service attribute information of the terminal equipment does not contain the service related to the reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, if the service attribute information of the terminal equipment contains the service related to the high-precision reference clock, for example, TSN or TSC service, the core network equipment can send the indication information for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment to the access network equipment. The access network device may send the high-precision reference clock information to the terminal device after receiving indication information indicating that the access network device sends the high-precision reference clock information to the terminal device.

If there is no service related to the high precision reference clock, for example, TSN or TSC service, in the service attribute information of the terminal device, the core network device may not send indication information to the access network device, which indicates that the access network device sends the high precision reference clock information to the terminal device, or the core network device may send indication information to the access network device, which indicates that the access network device does not send the high precision reference clock information to the terminal device. Correspondingly, if the access network device does not receive the indication information indicating that the access network device sends or does not send the high-precision reference clock information to the terminal device, the access network device may not send the high-precision reference clock information to the terminal device; or if the access network device receives the indication information indicating that the access network device does not send the high-precision reference clock information to the terminal device, the access network device does not need to send the high-precision reference clock information to the terminal device.

Optionally, in some embodiments, the method further comprises: and the core network equipment acquires the service attribute information of the terminal equipment from the entity information.

In the embodiment of the present application, the core network device may acquire service attribute information of the terminal device from the application function entity, or the core network device may also acquire service attribute information of the terminal device from subscription information of the terminal device, which is not specifically limited in the present application.

Optionally, in some embodiments, in a case where the first information includes a PDU session and/or QoS flow established by the terminal device, the core network device determines the indication information according to the first information, including: if the PDU session and/or the QoS stream have the characteristic related to the high-precision reference clock, the core network device determines the indication information, wherein the indication information is used for indicating the access network device to send the high-precision reference clock information to the terminal device; and if the PDU session and/or the QoS stream do not have the characteristic related to the reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, if the PDU session and/or QoS stream established by the terminal equipment has the characteristic related to the high-precision reference clock, such as TSN or TSC, the core network equipment can send the indication information indicating the access network equipment to send the high-precision reference clock information to the terminal equipment. The access network device may send the high-precision reference clock information to the terminal device after receiving indication information indicating that the access network device sends the high-precision reference clock information to the terminal device.

If there is no characteristic related to the high precision reference clock, for example, TSN or TSC characteristic, in the PDU session and/or QoS flow established by the terminal device, the core network device may not send indication information to the access network device, which indicates that the access network device does not send the high precision reference clock information to the terminal device, or the core network device may send indication information to the access network device, which indicates that the access network device does not send the high precision reference clock information to the terminal device. Correspondingly, if the access network device does not receive the indication information indicating that the access network device sends or does not send the high-precision reference clock information to the terminal device, the access network device may not send the high-precision reference clock information to the terminal device; or if the access network equipment receives the indication signal indicating that the access network equipment does not send the high-precision reference clock information to the terminal equipment, the access network equipment does not need to send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the core network device sends timer information to the access network device, where the timer information is timer information that controls the access network device to send or not send the high precision reference clock information to the terminal device.

In the embodiment of the application, after the core network equipment determines that the access network equipment sends or does not send the indication information of the high-precision reference clock information to the terminal equipment, the core network equipment can also send a timer information to the access network equipment, so that the access network equipment can determine the duration or the time point of sending or not sending the high-precision reference clock information to the terminal equipment based on the timer information.

Optionally, in some embodiments, the high precision reference clock information includes at least one of: and the period of the high-precision reference clock information, and the time length of the high-precision reference clock information.

In the embodiment of the application, the high-precision reference clock information can comprise the period of the high-precision reference clock information and the time length of the high-precision reference clock information. For example, the period of the high-precision reference clock information is 5ms,10ms, etc., and the time length of the high-precision reference clock information is 1ms,2ms.

In the embodiment of the application, the core network equipment can send the high-precision reference clock information to the access network equipment at intervals of 5ms on the assumption that the period of the high-precision reference clock information is 5 ms; assuming that the time length of the high-precision reference clock information is 2ms, the core network device may send the high-precision reference clock information to the access network device within the 2ms, and after exceeding the 2ms, the core network device may wait for the next period to send the high-precision reference clock information to the access network device.

It should be understood that the above values are merely exemplary, and the period and the time length of the high-precision reference clock information may be other values, which should not be construed as limiting the application.

As shown in fig. 4, a schematic flow chart of a wireless communication method 400 provided in accordance with another embodiment of the present application is shown and may include steps 420-430.

420, The access network device receives the indication information sent by the core network device, where the indication information is used to instruct the access network device to send or not send high-precision reference clock information to the terminal device.

And 430, the access network equipment determines to send or not to send the high-precision reference clock information to the terminal equipment according to the indication information.

In the embodiment of the application, after the access network equipment receives the indication information, the high-precision reference clock information can be determined to be sent to the terminal equipment or not to be sent to the terminal equipment based on the indication information. If the indication information indicates the access network equipment to send the high-precision reference clock information to the terminal equipment, the access network equipment sends the high-precision reference clock information to the terminal equipment; if the indication information indicates that the access network device does not send the high-precision reference clock information to the terminal device, the access network device may not send the high-precision reference clock information to the terminal device. Or in the case that the access network device does not receive the indication information, the access network device may not send the high-precision reference clock information to the terminal device.

According to the wireless communication method provided by the embodiment of the application, after the access network equipment receives the indication information sent by the core network equipment, whether the high-precision reference clock information can be sent to the terminal equipment is determined according to the indication information, and the access network equipment sends the high-precision reference clock information to the terminal equipment so as to occupy a certain air interface resource, and the resource waste can be avoided as far as possible by sending or not sending the indication information of the high-precision reference clock information to the terminal equipment through the indication information received by the access network equipment.

Optionally, in some embodiments, the method further comprises: the access network equipment receives the timer information sent by the core network equipment, wherein the timer information is used for controlling the access network equipment to send or not send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, the access network equipment can receive the timer information sent by the core network equipment, so that the time length and/or the time point of sending or not sending the high-precision reference clock information to the terminal equipment can be determined based on the timer information.

It is noted above that the access network device may determine a time length or a point in time when the high precision reference clock information is sent or not sent to the terminal device based on the received timer information. The time length or the time point at which the access network device determines to transmit or not to transmit the high-precision reference clock information to the terminal device based on the received timer information will be described in detail below.

Optionally, in some embodiments, if the indication information indicates that the access network device sends the high precision reference clock information to the terminal device, the method further includes: the access network equipment starts a timer; if the access network equipment sends the high-precision reference clock information to the terminal equipment before the timer is overtime; and if the timer is overtime, the access network equipment does not send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, the timer information can include the time length and/or the time point of the access network equipment sending or not sending the high-precision clock information to the terminal equipment. For example, the duration of the access network device sending or not sending the high-precision clock information to the terminal device may be 1s or 2s, etc., and/or the time point at which the access network device sending or not sending the high-precision clock information to the terminal device may be a certain time point, for example, may be 8 points or 9 points, etc.

It will be appreciated that the duration and/or time point at which the access network device sends the high precision clock information to the terminal device may be different from the duration and/or time point at which the access network device does not send the high precision clock information to the terminal device. For example, the duration of sending the high-precision clock information to the terminal device by the access network device may be 1s or 2s, and the duration of not sending the high-precision clock information to the terminal device by the access network device may be 0.5s, and the like; the time point when the access network device sends the high-precision clock information to the terminal device may be 8 points, and the time point when the access network device does not send the high-precision clock information to the terminal device may be 9 points.

In the embodiment of the application, the time length for the access network equipment to send the high-precision clock information to the terminal equipment is assumed to be 1s, if the access network equipment receives the indication information for indicating to send the high-precision reference clock information to the terminal equipment, the access network equipment can send the high-precision reference clock information to the terminal equipment within the 1 s; if the time exceeds 1s, the access network device can stop sending the high-precision reference clock information to the terminal device.

Optionally, in some embodiments, the method further comprises: before the timer times out, if the high-precision reference clock information is used by the terminal equipment, the access network equipment restarts the timer.

In the embodiment of the application, the time length for the access network equipment to send the high-precision clock information to the terminal equipment is assumed to be 1s, if the access network equipment receives the indication information for indicating to send the high-precision reference clock information to the terminal equipment, the access network equipment can send the high-precision reference clock information to the terminal equipment within the 1 s; if the terminal device uses the high-precision reference information sent by the access network device within 1s, the access network device can restart the timer, namely the timer can restart to count from 0, and within 1s after the timer starts from 0s, the access network device can still send the high-precision reference clock information to the terminal device.

Optionally, in some embodiments, if the indication information indicates that the access network device does not send the high precision reference clock information to the terminal device, the method further includes: if the access network equipment stops sending the high-precision reference clock information to the terminal equipment before the timer is overtime; and if the timer is overtime, the access network equipment sends the high-precision reference clock information to the terminal equipment again.

In the embodiment of the application, the duration of sending the high-precision clock information to the terminal equipment by the access network equipment is assumed to be 1s, if the access network equipment receives the indication information indicating that the high-precision reference clock information is not sent to the terminal equipment, the access network equipment can not send the high-precision reference clock information to the terminal equipment within the 1 s; if the reference clock information exceeds the 1s, the access network equipment can send the high-precision reference clock information to the terminal equipment again.

Optionally, in some embodiments, if the indication information indicates that the access network device does not send the high precision reference clock information to the terminal device, the method further includes: the access network equipment starts a timer; if the access network equipment sends the high-precision reference clock information to the terminal equipment before the timer is overtime; and if the timer is overtime, the access network equipment does not send the high-precision reference clock information to the terminal equipment.

In the embodiment of the application, the duration of sending the high-precision clock information to the terminal equipment by the access network equipment is assumed to be 1s, if the access network equipment receives the indication information indicating that the high-precision reference clock information is not sent to the terminal equipment, the access network equipment can start a timer, and the access network equipment can send the high-precision reference clock information to the terminal equipment within 1 s; if the time exceeds 1s, the access network device may not send high-precision reference clock information to the terminal device.

The method embodiments of the present application are described in detail above with reference to fig. 1 to 4, and the apparatus embodiments of the present application are described below with reference to fig. 5 to 9, where the apparatus embodiments and the method embodiments correspond to each other, and thus portions that are not described in detail can refer to the method embodiments of the previous portions.

Fig. 5 is a wireless communication apparatus 500 according to an embodiment of the present application, where the wireless communication apparatus 500 may include a processing module 510 and a communication module 520.

A processing module 510, configured to determine whether to send indication information to an access network device, where the indication information is used to instruct the access network device to send or not send high-precision reference clock information to a terminal device.

And the communication module 520 is configured to send indication information to the access network device if it is determined to send indication information to the access network device.

Optionally, in some embodiments, the processing module 510 is further configured to determine the indication information according to first information, where the first information includes at least one of the following information: capability information and/or local policy of the core network device; capability information and/or usage information of the terminal device; service attribute information of the terminal equipment; the terminal equipment establishes the protocol data unit PDU session and/or the attribute of the QoS flow.

Optionally, in some embodiments, the processing module 510 is further to: if the core network equipment has the capability of being related to the high-precision reference clock or the characteristic related to the high-precision reference clock is determined to be started by the core network equipment based on the local strategy, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment; and if the core network equipment does not have the capability of the characteristic related to the high-precision reference clock or the characteristic related to the high-precision reference clock is determined not to be started by the core network equipment based on the local strategy, determining the indication information, wherein the indication information indicates that the access network equipment does not send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the processing module 510 is further to: if the terminal equipment registered in the core network equipment supports a high-precision reference clock and/or the high-precision reference clock needs to be used, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment; and if the terminal equipment registered in the core network equipment does not support the high-precision reference clock and/or does not need to use the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the processing module 510 is further to: if the terminal equipment registered in the specific area supports a high-precision reference clock and/or needs to use the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment; and if the terminal equipment registered in the specific area does not support the high-precision reference clock and/or does not need to use the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the communication module 520 is further configured to: receiving information of a registration area of the terminal equipment, which is reported by the access network equipment; and/or, the processing module 510 is further configured to: and acquiring the information of the specific cell from the subscription information of the terminal equipment.

Optionally, in some embodiments, the processing module 510 is further to: if the service attribute information of the terminal equipment contains the service related to the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment; and if the service related to the reference clock does not exist in the service attribute information of the terminal equipment, determining the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the processing module 510 is further to: and acquiring the service attribute information of the terminal equipment from the entity information.

Optionally, in some embodiments, the processing module 510 is further to: if the PDU session and/or the QoS stream have the characteristic related to the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment; and if the PDU session and/or the QoS stream do not have the characteristic related to the reference clock, determining the indication information, wherein the indication information indicates that the access network equipment does not send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the communication module 520 is further configured to: and sending timer information to the access network equipment, wherein the timer information is used for controlling the access network equipment to send or not send the high-precision reference clock information to the terminal equipment.

Fig. 6 is an apparatus for wireless communication according to another embodiment of the present application, the wireless communication apparatus 600 may include a communication module 610 and a processing module 620.

And the communication module 610 is configured to receive indication information sent by a core network device, where the indication information is used to instruct an access network device to send or not send high-precision reference clock information to a terminal device.

And a processing module 620, configured to determine to send or not send the high-precision reference clock information to the terminal device according to the indication information.

Optionally, in some embodiments, the communication module 610 is further configured to: and receiving the timer information sent by the core network equipment, wherein the timer information is used for controlling the access network equipment to send or not send the high-precision reference clock information to the terminal equipment.

Optionally, in some embodiments, the processing module 620 is further configured to: starting a timer; the communication module 610 is further configured to: if the timer is overtime, the high-precision reference clock information is sent to the terminal equipment; and if the timer is overtime, the high-precision reference clock information is not sent to the terminal equipment.

Optionally, in some embodiments, the processing module 620 is further configured to: and restarting the timer if the high-precision reference clock information is used by the terminal equipment before the timer is overtime.

Optionally, in some embodiments, the communication module 610 is further configured to: if the timer is overtime, stopping sending the high-precision reference clock information to the terminal equipment; and if the timer is overtime, the high-precision reference clock information is sent to the terminal equipment again.

The embodiment of the present application further provides a communication device 700, as shown in fig. 7, including a processor 710 and a memory 720, where the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory, so as to execute the method in the embodiment of the present application.

Processor 710 may call and run computer programs from memory 720 to implement the methods in embodiments of the present application.

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.

Optionally, as shown in fig. 7, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices.

Among other things, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, the number of which may be one or more.

Optionally, the communication device 700 may be specifically an embodiment of the present application and a core network device, and the communication device 700 may implement a corresponding flow implemented by the core network device in each method of the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 700 may be specifically an access network device according to an embodiment of the present application, and the communication device 700 may implement a corresponding flow implemented by the access network device in each method according to the embodiment of the present application, which is not described herein for brevity.

Fig. 8 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 800 shown in fig. 8 includes a processor 810, and the processor 810 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, chip 800 may also include memory 820. Wherein the processor 810 may call and run a computer program from the memory 820 to implement the method in embodiments of the present application.

Wherein the memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, the chip 800 may also include an input interface 830. The processor 810 may control the input interface 830 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 800 may further include an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the core network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the core network device in each method of the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to the access network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the access network device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The Processor may be a general purpose Processor, a digital signal Processor (DIGITAL SIGNAL Processor, DSP), an Application SPECIFIC INTEGRATED Circuit (ASIC), an off-the-shelf programmable gate array (Field Programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (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 link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and Direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be appreciated that the above memory is exemplary and not limiting, and for example, the memory in the embodiments of the present application may be static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (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 (SYNCH LINK DRAM, SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 9 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in fig. 9, the communication system 900 includes a core network device 910 and an access network device 920.

The core network device 910 may be configured to implement the corresponding functions implemented by the core network device in the above method, and the access network device 920 may be configured to implement the corresponding functions implemented by the access network device in the above method, which are not described herein for brevity.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to the core network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the core network device in each method of the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to the access network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the access network device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the core network device in the embodiment of the present application, and the computer program instructions cause the computer to execute corresponding processes implemented by the core network device in each method of the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to the access network device in the embodiment of the present application, and the computer program instructions cause the computer to execute corresponding flows implemented by the access network device in the methods in the embodiments of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the core network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the core network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to the access network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the access network device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

The method comprises the steps that core network equipment determines whether indication information is sent to access network equipment or not, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to terminal equipment;

and under the condition that the indication information is sent to the access network equipment, the core network equipment sends the indication information to the access network equipment.

2. The method according to claim 1, wherein the method further comprises:

The core network device determines the indication information according to first information, wherein the first information comprises at least one of the following information:

Capability information and/or local policy of the core network device;

capability information and/or usage information of the terminal device;

Service attribute information of the terminal equipment;

The terminal equipment establishes the protocol data unit PDU session and/or the attribute of the QoS flow.

3. Method according to claim 2, characterized in that in case the first information comprises capability information and/or local policy of the core network device, the core network device determines the indication information from the first information, comprising:

If the core network device has the capability of the characteristic related to the high-precision reference clock or determines that the core network device starts the characteristic related to the high-precision reference clock based on the local policy, the core network device determines the indication information, wherein the indication information is used for indicating the access network device to send the high-precision reference clock information to the terminal device;

And if the core network equipment does not have the capability of the characteristic related to the high-precision reference clock or the characteristic related to the high-precision reference clock is not started by the core network equipment based on the local strategy, the core network equipment determines the indication information, wherein the indication information indicates that the access network equipment does not send the high-precision reference clock information to the terminal equipment.

4. A method according to claim 2 or 3, characterized in that the capability information and/or usage information of the terminal device comprises at least one of the following information:

capability information and/or usage information of the terminal device registered in the core network device;

capability information and/or usage information of the terminal device registered in a specific area.

5. The method according to claim 4, wherein, in case the first information comprises capability information and/or usage information of the terminal device registered with the core network device, the core network device determines the indication information according to the first information, comprising:

If the terminal equipment registered in the core network equipment supports a high-precision reference clock and/or needs to use the high-precision reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

6. The method according to claim 4, wherein, in case the first information includes capability information and/or usage information of the terminal device registered in the specific area, the core network device determines the indication information according to the first information, comprising:

If the terminal equipment registered in the specific area supports a high-precision reference clock and/or needs to use the high-precision reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

7. The method according to claim 4, characterized in that the specific area comprises a registration area and/or a specific cell of the terminal device.

8. The method of claim 7, wherein the method further comprises:

the core network equipment receives the information of the registration area of the terminal equipment reported by the access network equipment; and/or the number of the groups of groups,

And the core network equipment acquires the information of the specific cell from the subscription information of the terminal equipment.

9. The method of claim 8, wherein the particular cell is a movement restriction area of the terminal device.

10. The method according to claim 2, wherein in case the first information comprises service attribute information of the terminal device, the core network device determines the indication information according to the first information, comprising:

If the service attribute information of the terminal equipment contains the service related to the high-precision reference clock, the core network equipment determines the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

11. The method according to claim 10, wherein the method further comprises:

and the core network equipment acquires the service attribute information of the terminal equipment from the entity information.

12. Method according to claim 2, characterized in that in case the first information comprises a PDU session and/or QoS flow established by the terminal device, the core network device determines the indication information from the first information, comprising:

If the PDU session and/or the QoS stream have the characteristic related to the high-precision reference clock, the core network device determines the indication information, wherein the indication information is used for indicating the access network device to send the high-precision reference clock information to the terminal device;

And if the PDU session and/or the QoS stream do not have the characteristic related to the reference clock, the core network equipment determines the indication information, wherein the indication information indicates that the access network equipment does not send the high-precision reference clock information to the terminal equipment.

13. The method according to any one of claims 1 to 3, 10 to 12, further comprising:

The core network device sends timer information to the access network device, wherein the timer information is used for controlling the access network device to send or not send the high-precision reference clock information to the terminal device.

14. The method according to any of claims 1 to 3, 10 to 12, characterized in that the high precision reference clock information comprises at least one of the following information:

and the period of the high-precision reference clock information, and the time length of the high-precision reference clock information.

15. A method of wireless communication, comprising:

the method comprises the steps that an access network device receives indication information sent by a core network device, wherein the indication information is used for indicating the access network device to send or not send high-precision reference clock information to a terminal device;

And the access network equipment determines to send or not send the high-precision reference clock information to the terminal equipment according to the indication information.

16. The method of claim 15, wherein the method further comprises:

The access network equipment receives the timer information sent by the core network equipment, wherein the timer information is used for controlling the access network equipment to send or not send the high-precision reference clock information to the terminal equipment.

17. The method of claim 16, wherein if the indication information indicates that the access network device transmits the high precision reference clock information to the terminal device, the method further comprises:

the access network equipment starts a timer;

if the access network equipment sends the high-precision reference clock information to the terminal equipment before the timer is overtime;

and if the timer is overtime, the access network equipment does not send the high-precision reference clock information to the terminal equipment.

18. The method of claim 16, wherein the method further comprises:

before the timer times out, if the high-precision reference clock information is used by the terminal equipment, the access network equipment restarts the timer.

19. The method of claim 16, wherein if the indication information indicates that the access network device does not send the high precision reference clock information to the terminal device, the method further comprises:

If the access network equipment stops sending the high-precision reference clock information to the terminal equipment before the timer is overtime;

and if the timer is overtime, the access network equipment sends the high-precision reference clock information to the terminal equipment again.

20. The method of claim 16, wherein if the indication information indicates that the access network device does not send the high precision reference clock information to the terminal device, the method further comprises:

the access network equipment starts a timer;

21. A wireless communications apparatus, comprising:

The processing module is used for determining whether to send indication information to the access network equipment, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to the terminal equipment;

and the communication module is used for sending the indication information to the access network equipment under the condition of determining to send the indication information to the access network equipment.

22. The apparatus of claim 21, wherein the processing module is further configured to determine the indication information based on first information comprising at least one of:

Capability information and/or local policy of the core network device;

capability information and/or usage information of the terminal device;

Service attribute information of the terminal equipment;

23. The apparatus of claim 22, wherein the processing module is further configured to:

If the core network equipment has the capability of being related to the high-precision reference clock or the characteristic related to the high-precision reference clock is determined to be started by the core network equipment based on the local strategy, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

And if the core network equipment does not have the capability of the characteristic related to the high-precision reference clock or the characteristic related to the high-precision reference clock is determined not to be started by the core network equipment based on the local strategy, determining the indication information, wherein the indication information indicates that the access network equipment does not send the high-precision reference clock information to the terminal equipment.

24. The apparatus according to claim 22 or 23, wherein the capability information and/or usage information of the terminal device comprises at least one of the following information:

25. The apparatus of claim 24, wherein the processing module is further configured to:

if the terminal equipment registered in the core network equipment supports a high-precision reference clock and/or the high-precision reference clock needs to be used, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

And if the terminal equipment registered in the core network equipment does not support the high-precision reference clock and/or does not need to use the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

26. The apparatus of claim 24, wherein the processing module is further configured to:

If the terminal equipment registered in the specific area supports a high-precision reference clock and/or needs to use the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

and if the terminal equipment registered in the specific area does not support the high-precision reference clock and/or does not need to use the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

27. The apparatus according to claim 24, wherein the specific area comprises a registration area and/or a specific cell of the terminal device.

28. The apparatus of claim 27, wherein the communication module is further configured to:

Receiving information of a registration area of the terminal equipment, which is reported by the access network equipment; and/or the number of the groups of groups,

The processing module is further to: and acquiring the information of the specific cell from the subscription information of the terminal equipment.

29. The apparatus of claim 28, wherein the particular cell is a movement restriction area of the terminal device.

30. The apparatus of claim 22, wherein the processing module is further configured to:

If the service attribute information of the terminal equipment contains the service related to the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

And if the service related to the reference clock does not exist in the service attribute information of the terminal equipment, determining the indication information, wherein the indication information is used for indicating the access network equipment not to send the high-precision reference clock information to the terminal equipment.

31. The apparatus of claim 30, wherein the processing module is further configured to:

and acquiring the service attribute information of the terminal equipment from the entity information.

32. The apparatus of claim 22, wherein the processing module is further configured to:

if the PDU session and/or the QoS stream have the characteristic related to the high-precision reference clock, determining the indication information, wherein the indication information is used for indicating the access network equipment to send the high-precision reference clock information to the terminal equipment;

And if the PDU session and/or the QoS stream do not have the characteristic related to the reference clock, determining the indication information, wherein the indication information indicates that the access network equipment does not send the high-precision reference clock information to the terminal equipment.

33. The apparatus of any one of claims 21 to 23, 30 to 32, wherein the communication module is further to:

And sending timer information to the access network equipment, wherein the timer information is used for controlling the access network equipment to send or not send the high-precision reference clock information to the terminal equipment.

34. The apparatus of any of claims 21 to 23, 30 to 32, wherein the high precision reference clock information comprises at least one of:

35. A wireless communications apparatus, comprising:

The communication module is used for receiving indication information sent by the core network equipment, wherein the indication information is used for indicating the access network equipment to send or not send high-precision reference clock information to the terminal equipment;

and the processing module is used for determining to send or not to send the high-precision reference clock information to the terminal equipment according to the indication information.

36. The apparatus of claim 35, wherein the communication module is further configured to:

and receiving the timer information sent by the core network equipment, wherein the timer information is used for controlling the access network equipment to send or not send the high-precision reference clock information to the terminal equipment.

37. The apparatus of claim 36, wherein the processing module is further configured to: starting a timer;

The communication module is further configured to:

if the timer is overtime, the high-precision reference clock information is sent to the terminal equipment;

and if the timer is overtime, the high-precision reference clock information is not sent to the terminal equipment.

38. The apparatus of claim 36, wherein the processing module is further configured to:

And restarting the timer if the high-precision reference clock information is used by the terminal equipment before the timer is overtime.

39. The apparatus of claim 36, wherein the communication module is further configured to:

If the timer is overtime, stopping sending the high-precision reference clock information to the terminal equipment;

and if the timer is overtime, the high-precision reference clock information is sent to the terminal equipment again.

40. The apparatus of claim 36, wherein the processing module is further configured to: starting a timer;

The communication module is further configured to:

41. A communication device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 20.

42. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 14.

43. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 15 to 20.

44. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 14.

45. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 15 to 20.

46. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 14.

47. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 15 to 20.