CN115428534A

CN115428534A - Method for transmitting clock information, terminal equipment and network equipment

Info

Publication number: CN115428534A
Application number: CN202080099360.5A
Authority: CN
Inventors: 付喆
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2022-12-02
Also published as: WO2021232364A1

Abstract

The embodiment of the invention provides a method for transmitting clock information, terminal equipment and network equipment, which are applied to the technical field of communication, and the embodiment of the invention comprises the following steps: and the terminal equipment receives the reference clock information sent by the network equipment.

Description

Method for transmitting clock information, terminal equipment and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for transmitting clock information, a terminal device, and a network device.

Background

The crystal frequency of the clock in the terminal device is not fixed but is subject to errors, which results in errors in the timing of the clock of the terminal device. In a fifth generation (5 th-generation, 5G) communication system, system time information is broadcast in a System Information Block (SIB) 9. When the terminal needs to acquire the system time information of the 5G communication system, the terminal device may monitor the SIB9 to acquire the system time information of the 5G communication system, and modify a clock of the terminal device.

A Time Sensitive Network (TSN) is introduced into an R16G industrial internet of things (IIoT for short), and low-latency and high-reliability transmission is required in the TSN. The 5G communication system network is used as a network bridge of the TSN to provide timing synchronization service for the TSN, so that higher clock synchronization precision needs to be provided in the 5G communication system, so that the operation of each point of mechanical operation is strictly time-synchronized when industrial automation business is transmitted in the 5G communication system network. Based on this, in R16, TS 38.331 introduces a new reference clock information with higher precision to indicate system time information, where the precision of the reference clock information is improved to 10ns, and the standard specifies that the terminal device can send RRC signaling to the network device to inform the network device that the terminal device wants to acquire clock information related to the reference clock information, but the current standard does not specify how the network device sends the clock information related to the reference clock information to the terminal device. Therefore, the network device cannot determine whether to send the reference clock information and how to send the reference clock information to the terminal device, and the terminal device requests the network to send the reference clock information each time the clock offset exceeds the tolerance, which may cause the terminal device to frequently send the reference clock information to the network device, thereby increasing the overhead of uplink resources.

Disclosure of Invention

Embodiments of the present invention provide a method for transmitting clock information, a terminal device, and a network device, which can solve the problems that the network device cannot determine whether to send the reference clock information and how to send the reference clock information to the terminal device, and can solve the problem that the frequent sending of the reference clock information to the network device increases the overhead of uplink resources.

In a first aspect, a method for transmitting clock information is provided, including: and receiving reference clock information sent by the network equipment.

Optionally, before receiving the reference clock information sent by the network device, the method further includes:

and sending first information to the network equipment, wherein the first information is information related to the clock accuracy of the terminal equipment.

Optionally, the receiving the reference clock information sent by the network device includes:

and receiving reference clock information sent by the network equipment according to a sending period, wherein the sending period is determined by the network equipment according to the first information.

According to the method for transmitting clock information provided by the embodiment of the invention, the terminal equipment can report the information related to the clock accuracy of the terminal equipment to the network equipment, so that the network equipment is assisted to determine the sending period of the reference clock information sent to the terminal equipment, the clock of the terminal equipment is periodically corrected, and the problem that the network equipment cannot determine how to send the reference clock information to the terminal equipment in the prior art is solved.

Optionally, after sending the control message to the network device, the method further includes:

after the first time period, sending a control message to the network equipment again;

the first duration is the duration between two times of sending the control message to the network equipment by the terminal equipment.

In the method for transmitting clock information provided in the embodiment of the present invention, when the terminal device requests the network device to send the reference clock information as needed, a preset duration (the first duration in the embodiment of the present invention, implemented by a timer) is maintained between two times of sending the control message, so that overhead of uplink and/or downlink resources of an air interface can be saved.

In a second aspect, a method for transmitting clock information is provided, including: and transmitting the reference clock information to the terminal equipment.

Optionally, before sending the reference clock information to the terminal device, the method further includes:

receiving first information sent by a terminal device, wherein the first information is information related to the clock accuracy of the terminal device; and determining a sending period for sending the reference clock information according to the first information.

In a third aspect, a terminal device is provided, which includes: and the receiving module is used for receiving the reference clock information sent by the network equipment.

In a fourth aspect, a network device is provided, comprising: and the sending module is used for sending the reference clock information to the terminal equipment.

In a fifth aspect, a terminal device is provided, which includes: and the receiver is used for receiving the reference clock information sent by the network equipment.

In a sixth aspect, a network device is provided, comprising: and the transmitter is used for transmitting the reference clock information to the terminal equipment.

In a seventh aspect, a computer-readable storage medium is provided, comprising: computer instructions which, when run on a computer, cause the computer to perform a method according to any of the alternative implementations of the first aspect or the first aspect described above, or alternatively, to perform a method according to any of the alternative implementations of the second aspect or the second aspect described above.

In an eighth aspect, there is provided a computer program product comprising computer instructions which, when run on a computer, cause the computer to perform the method of any of the alternative implementations of the first aspect or the first aspect described above, or the method of any of the alternative implementations of the second aspect or the second aspect described above.

A ninth aspect provides a chip, where the chip is coupled with a memory in a terminal device, so that when the chip calls the program instructions stored in the memory, the terminal device executes the method according to the first aspect or any one of the optional implementation manners of the first aspect, or the network device executes the method according to any one of the optional implementation manners of the second aspect.

Drawings

Fig. 1 is a schematic diagram of a network architecture in which a 5G communication system network is used as a TSN network bridge according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a wireless communication system according to an embodiment of the present invention;

fig. 3 is a first schematic diagram illustrating a method for transmitting clock information according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a second method for transmitting clock information according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a mobile phone according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.

In the description of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. The technical scheme provided by the invention can be applied to various communication systems, such as a 5G communication system, a future evolution system or a plurality of communication convergence systems and the like. Various application scenarios may be included, for example, scenarios such as machine-to-machine (M2M), D2M, macro-micro communication, enhanced mobile broadband (eMBB), ultra high reliability and ultra low latency communication (urlllc), and massive internet of things communication (mtc). For example: the embodiment of the invention can be applied to the communication between the network equipment and the terminal equipment in the NR-U of the 5G communication system.

Generally, a clock exists in a terminal device, and a crystal oscillator frequency of the clock in the terminal device is not fixed but has an error, which causes an error in timing of the clock in the terminal device.

In the related art, the 5G communication system performs clock synchronization through system time information broadcast by the system. Wherein, the granularity of the 5G communication system time information is 10ms, and the information is broadcasted in SIB 9. When the terminal device needs to acquire the system time information in the 5G communication system, the terminal device may listen to the SIB9 to acquire the system time information in the 5G communication system.

The related standard specifies that, after receiving the SIB9 system broadcast message, the mapping object of the clock information coordinated universal time (timeInfoUTC) included in the SIB9 is a system frame SFN boundary corresponding to an end boundary of a broadcast message (SI) window for transmitting the SIB9, or a first SFN boundary after the end boundary of the SI window for transmitting the SIB 9.

Further, the clock error may also be different based on the different performance of the clock crystal configured by the terminal device. The degree of deflection of a crystal oscillator is usually described in parts per million (ppm).

For example, assuming that the degree of deviation of one crystal oscillator is 20ppm =20/1000000=0.00002, the clock-generated deviation may be plus or minus (20 × 60 × 24 × 30)/1000000 = plus or minus 51.84s after one month (30 days, for example, including 260 ten thousand seconds).

Clock synchronization becomes more and more important in IIOT scene, and R16G IIoT supports the transmission of services such as industrial automation, transmission automation, intelligent Power Distribution and the like in a 5G communication system. The IIoT introduces TSNs, which require low latency and high reliability of transmission. The 5G communication system network is used as a network bridge of the TSN to provide timing synchronization service for the TSN, so that higher clock synchronization precision needs to be provided in the 5G communication system, so that the operation of each point of mechanical operation and the subsequent strict time synchronization of the operation are realized when industrial automation business is transmitted in the 5G communication system network. As shown in fig. 1, in order to implement an architectural network diagram of a network bridge using a 5G communication system network as a TSN, a third Generation Partnership project (3 rd Generation Partnership project,3 gpp) 5G system (5 GS) in fig. 1 includes: the network management function (NEF), the core access and mobility management function (AFM), the session management function (SFM), the policy control function (PC) F, the User Equipment (UE), the radio access network (R) AN, and the upstream port (UFP). The TSN converter of the device side in the TSN is connected with UE and a TSN terminal station in 3GPP 5GS, the user plane TSN converter measured by the device in the TSN is connected with UFP and the TSN terminal station in 3GPP 5GS, the control plane TSN converter measured by the device in the TSN is connected with PCF and TSN Centralized Network Configuration (CNC) in 3GPP 5GS, wherein the TSN CNC is connected with the TSN Centralized user Configuration (Centralized user Configuration CUC).

In R16, TS 38.331 introduces a new higher precision related clock information: reference time info. The accuracy of the reference clock information is specified in the standard to be improved to 10ns. The standard protocol provides that when the terminal device is interested in the clock information related to the reference clock information and changes, or the terminal device is interested in the clock information related to the reference clock information and has not sent related RRC signaling before to indicate to the network device, the terminal device may send RRC signaling to the network device, and carry a flag bit with a true value/reference clock information requirement (reference clock information required) in user equipment assistance information (UE assistance information) therein to tell the network device that the network device itself wants to acquire the clock information related to the reference clock information.

After the terminal equipment sends the flag bit carrying the reference clock information requirement with true value/set 1 to tell the network that the network wants to acquire the relevant clock information of the reference clock information, the standard does not specify how often the network equipment needs to send the relevant clock information of the reference clock information to the terminal equipment or only send the relevant clock information of the reference clock information once.

Based on the related art, since the standard does not specify how often the network device needs to send the clock information related to the reference clock information to the terminal device or only send the clock information related to the reference clock information once, on the premise that the network device does not have the clock skew performance index and the related performance requirement of the terminal device, the network device cannot determine how to send the reference clock information to the terminal device (for example, whether to periodically send the updated reference clock information to the terminal device, and in what sending period to send the updated reference clock information to the terminal device).

Further, in the related art, the terminal device may request the network to send the reference clock information each time the clock skew exceeds a preset value (tolerance), so that the overhead of the uplink resource is increased in a case where the terminal device frequently sends the reference clock information to the network device.

Based on the above problem, according to the method for transmitting clock information provided by the embodiment of the present invention, information related to the clock accuracy of the terminal device can be reported to the network device by the terminal device, so as to assist the network device in determining the transmission period for transmitting reference clock information to the terminal device, and thus, the clock of the terminal device can be periodically corrected.

Further, in the method for transmitting clock information provided in the embodiment of the present invention, when the terminal device requests the network device to send the reference clock information as needed, a preset time duration (the first time duration in the embodiment of the present invention) is maintained between two times of sending the control message for requesting the reference clock information from the network device, so that overhead of uplink and/or downlink resources of an air interface can be saved.

The method for transmitting the clock information provided by the embodiment of the invention can be applied to a wireless communication system. Fig. 1 is a schematic diagram of a system architecture of a wireless communication system according to an embodiment of the present invention. In fig. 1, the wireless communication system includes a terminal device and a network device. In practical applications, the connection between the terminal device and the network device may be a wireless connection. When the method for transmitting clock information provided by the embodiment of the present invention is applied to the wireless communication system shown in fig. 2, on one hand, the terminal device reports information related to the clock accuracy of the terminal device to the network device to assist the network device in determining a transmission period for transmitting reference clock information to the terminal device, so as to periodically modify a clock of the terminal device; on the other hand, when the terminal equipment requests the network equipment to send the reference clock information according to the requirement, a preset time length is kept between two times of sending the control message for requesting the reference clock information to the network equipment, so that the overhead of air interface uplink and/or downlink resources can be saved.

The terminal device in the embodiment of the present invention may be referred to as a User Equipment (UE). The terminal device may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or the like, and may also be a mobile phone, a Mobile Station (MS), a mobile terminal (mobile terminal), a notebook computer, or the like, and may communicate with one or more core networks through a Radio Access Network (RAN). The terminal equipment may be, for example, a mobile telephone (or so-called "cellular" telephone) or a computer with a mobile terminal, etc., and may also be, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device that exchanges voice and/or data with the radio access network. The terminal device may also be a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved network, etc. The above is merely an example, and the practical application is not limited thereto.

The network device in the embodiment of the present invention may be an evolved Node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), a new generation base station (new generation Node B, gNodeB), or the like in an LTE system, an NR communication system, or an authorized assisted access long-term evolution (LAA-LTE) system. The network device may also be another type of network device in a future 5G communication system or a future evolved network.

The method for transmitting clock information provided by the embodiment of the invention can be applied to the following scenes 1 and 2. In the following, different embodiments of the invention applied in these two scenarios will be exemplarily explained.

Scene 1: there is no mechanism for a terminal to request reference time info related clock information on demand.

As shown in fig. 3, an embodiment of the present invention provides a method for transmitting clock information, where the method may include:

101. the terminal device sends a control message to the network device.

Wherein the control message is used to request reference clock information from the network device.

Optionally, the control message in the embodiment of the present invention may be a reference clock information request message.

In the embodiment of the invention, the reference clock information can be used for correcting the clock offset by the terminal equipment.

Optionally, the terminal device may carry the control message in Radio Resource Control (RRC), RRC signaling or a media access control element (MAC CE) and send the control message to the network device.

102. The terminal device sends the first information to the network device.

The first information is information related to the clock accuracy of the terminal equipment.

Optionally, the first information may include: at least one of a clock skew rate and a performance class index.

Wherein the performance classification index number is used for indicating the clock performance of the terminal device.

Alternatively, the clock performance may be divided into multiple levels, for example, the clock performance may include three levels, i.e., high, medium, and low.

Illustratively, the clock performance may be characterized in ppm, and at a clock performance of 5ppm, it is determined that its clock performance is at a high level, corresponding to an index number of 1, and at a clock performance of 10ppm, it is determined that its clock performance is at a medium level, corresponding to an index number of 2; at a clock performance of 20ppm, it is determined that the clock performance thereof is at a low level, corresponding to an index number of 3.

Optionally, the terminal device may carry the first information in RRC signaling or MAC CE and send the first information to the network device.

Optionally, the terminal device may carry the first information and the control message in the same RRC signaling and send the same to the network device, or may carry the first information and the control message in different RRC signaling and send the same to the network device.

For example, the terminal device may send the first information to the network device together with the reference clock information requirement flag, in the UE assistance information carried in the RRC signaling.

Optionally, the terminal device may also execute 103.

103. The terminal device sends the required clock synchronization performance requirement to the network device.

Accordingly, the network device receives the clock synchronization performance requirement of the requirement sent by the terminal device.

Optionally, in this embodiment of the present invention, the receiving, by the network device, the required clock synchronization performance requirement may further include: the network device receives a required clock synchronization performance requirement in the TSN network.

Illustratively, when the method provided in the embodiment of the present invention is applied to the network architecture shown in fig. 1, a network device may receive a clock synchronization performance requirement required in a TSN network, and may also receive a clock synchronization performance requirement required by a terminal device.

It should be noted that, in the embodiment of the present invention, the execution order of the above steps 101, 102, and 103 is not limited, and the three steps may be executed simultaneously or may not be executed simultaneously.

Optionally, the terminal device may carry the required clock synchronization performance requirement in RRC signaling or MAC CE to send to the network device.

Optionally, the terminal device may carry the first information, the control message, and the required clock synchronization performance requirement in the same RRC signaling and send the same to the network device, or may carry the first information, the control message, and the required clock synchronization performance requirement in different RRC signaling and send the same to the network device.

104. The network device determines a transmission period for transmitting the reference clock information.

The determination method of the transmission period may include the following three ways:

the first method comprises the following steps: the sending period is determined by the network equipment according to the first information.

And the second method comprises the following steps: the sending period is determined by the network device according to the first information and the default synchronization performance requirement.

Optionally, when the terminal device does not send the required clock synchronization performance requirement to the network device, the sending period may be determined according to the first manner or the second manner.

And the third is that: the sending period is determined by the network device according to the first information and the required synchronization performance requirement.

Optionally, when the terminal device sends a required clock synchronization performance requirement to the network device, the sending period may be determined according to a third manner.

For example, assuming that a clock drift rate (clock drift rate) of the terminal reported by the terminal device to the network through the UE assistance information (UE association information) is 5ppm (that is, an offset per second is 5/1000000 (sec)), and a synchronization performance requirement obtained by the 5G communication system network is 60ns, the network device may determine that the synchronization performance requirement can be met only by updating the reference clock information related to the terminal device 83 times per second through calculation, and a time period of each transmission is 1/83s. Therefore, the network equipment can send the reference clock information to the terminal equipment every 1/83 second by using the downlink RRC signaling.

After 104, the network device may send reference clock information to the terminal device.

Optionally, the network device may also indicate the resource configured by the network device to the terminal device, and then send the reference clock information to the terminal device on the indicated resource.

105. The network equipment indicates the semi-static scheduling resources configured by the network equipment to the terminal equipment.

Correspondingly, the terminal equipment receives the semi-static scheduling resource configured by the network equipment.

Optionally, the scheduling period of the semi-persistent scheduling resource is determined according to the transmission period.

106. And the network equipment sends the reference clock information to the terminal equipment on the configured semi-static scheduling resource according to the sending period.

It should be noted that, in the embodiment of the present invention, the network device may further send the reference clock information to the terminal device by dynamically scheduling the resource.

107. And the terminal equipment corrects the clock offset according to the reference clock information.

Scene 2: there is a mechanism in which a terminal device requests reference time info (reference time info) related clock information on demand.

As shown in fig. 4, an embodiment of the present invention provides a method for transmitting clock information, where the method includes:

201. the terminal device sends a control message to the network device.

The description of the control message in 201 may refer to the description of the control message in 101, and is not repeated here.

202. The terminal equipment starts a timer.

In the embodiment of the invention, after the terminal equipment sends the control message to the network equipment and needs to send the control message to the network equipment again after the first time interval.

Optionally, after the first duration, the control message is sent to the network device again, where the control message may be sent to the network device again after the timer expires.

The time length of the timer is set to be a first time length, the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the control message to the network equipment.

Optionally, the first duration is determined according to at least one of clock performance and a required clock synchronization performance requirement.

Optionally, the first time length is determined in one of the following manners:

network device configuration, terminal device determination, and protocol specification.

That is to say, in the embodiment of the present invention, a timer (timer) is introduced in the terminal device, which prohibits the terminal device from sending RRC or MAC CE again for a period of time to request the network to send the reference clock information. Wherein the specific duration of the timer is related to the performance level (which can be characterized by clock configuration rate) or performance classification of the terminal clock. The specific duration of the timer is also related to the service synchronization performance requirement. The network determines the specific time of the timer according to the clock performance level or the performance classification reported by the terminal and the service synchronization performance requirement. Optionally, the timer may be configured for the network device to the terminal device. The terminal device cannot transmit RRC again to the network or the MAC CE requests the network to transmit the reference clock information before the timer expires.

203. The network device sends the reference clock information to the terminal device.

204. And after the timer is overtime, the terminal equipment sends the control message to the network equipment again.

In the method for transmitting clock information provided in the embodiment of the present invention, when the terminal device requests the network device to send the reference clock information as needed, a preset time duration (the first time duration in the embodiment of the present invention is implemented by a timer) is maintained between two times of sending the control message for requesting the reference clock information from the network device, so that overhead of uplink and/or downlink resources of an air interface can be saved.

As shown in fig. 5, an embodiment of the present invention provides a terminal device, including: the receiving module 301 is configured to receive reference clock information sent by a network device.

Optionally, the terminal device further includes:

a sending module 302, configured to send first information to the network device before the receiving module 301 receives the reference clock information sent by the network device, where the first information is information related to the clock accuracy of the terminal device.

Optionally, the receiving module 301 is specifically configured to receive reference clock information sent by the network device according to a sending period, where the sending period is determined by the network device according to the first information.

Optionally, the sending period is determined by the network device according to the first information and a default synchronization performance requirement.

Optionally, the sending period is determined by the network device according to the first information and the required synchronization performance requirement.

Optionally, the sending module 302 is further configured to send a required clock synchronization performance requirement to the network device before the receiving module 301 receives the reference clock information sent by the network device according to the sending cycle. Optionally, the first information includes: at least one of a clock skew rate and a performance class index, the performance class index indicating a clock performance of the terminal device.

Optionally, the receiving module 301 is further configured to receive the semi-persistent scheduling resource configured by the network device before receiving the reference clock information sent by the network device.

Optionally, the receiving module 301 is specifically configured to receive, on the configured semi-persistent scheduling resource, reference clock information sent by the network device according to a sending period.

Optionally, the terminal device further includes:

a sending module 302, configured to send a control message to the network device before the receiving module receives the reference clock information sent by the network device, where the control message is used to request the network device for the reference clock information.

Optionally, the sending module 302 is further configured to send the control message to the network device again after sending the control message to the network device and after the first duration;

the first duration is the duration between two times of sending the control message to the network device by the terminal device.

Optionally, the sending module 302 is specifically configured to send the control message to the network device again after the timer expires;

the time length of the timer is set as a first time length, the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the control message to the network equipment.

Optionally, the first duration is determined according to at least one of clock performance and required clock synchronization performance requirement.

Optionally, the first duration is determined in one of the following manners:

An embodiment of the present invention further provides a terminal device, where the terminal device includes: a memory storing executable program code;

a processor coupled to the memory;

the processor calls the executable program codes stored in the memory to execute the method for transmitting the clock information, which is executed by the terminal equipment in the embodiment of the invention.

As shown in fig. 6, an embodiment of the present invention provides a network device, including:

a sending module 401, configured to send reference clock information to a terminal device.

Optionally, the network device further includes:

a receiving module 402, configured to receive first information sent by a terminal device before the sending module 401 sends reference clock information to the terminal device, where the first information is information related to the clock accuracy of the terminal device;

a processing module 403, configured to determine a sending period for sending the reference clock information according to the first information.

Optionally, the processing module 403 is specifically configured to determine a sending period for sending the reference clock information according to the first information and a default synchronization performance requirement.

Optionally, before determining, according to the first information, a transmission period for transmitting the reference clock information, the network device further includes:

a receiving module 402, configured to receive a required clock synchronization performance requirement before the processing module 403 determines, according to the first information, a sending period for sending the reference clock information;

the processing module 403 is specifically configured to determine a sending period for sending the reference clock information according to the first information and the required clock synchronization performance requirement.

Optionally, the receiving module 402 is specifically configured to receive a clock synchronization performance requirement of a requirement sent by a terminal device, or receive a clock synchronization performance requirement of a requirement in a TSN network.

Optionally, the first information includes: at least one of a clock skew rate and a performance class index, the performance class index indicating a clock performance of the terminal device.

Optionally, the sending module 401 is specifically configured to send the reference clock information to the terminal device according to the sending period.

Optionally, before sending the reference clock information to the terminal device according to the sending period, the network device further includes:

and configuring semi-static scheduling resources to the terminal equipment.

Optionally, the sending the reference clock information to the terminal device according to the sending period includes:

and according to the sending period, sending the reference clock information to the terminal equipment on the configured semi-static scheduling resource.

Optionally, the receiving module 402 is further configured to receive a control message sent by the terminal device before the sending module 401 sends the reference clock information to the terminal device, where the control message is used to request the network device for the reference clock information.

Optionally, after receiving the control message sent by the terminal device, the method further includes:

a receiving module 402, further configured to receive the control message sent by the terminal device again after receiving the control message sent by the terminal device and after the first duration;

Optionally, the receiving module 402 is specifically configured to receive the control message sent by the terminal device again after the timer expires;

the time length of the timer is set to be a first time length, and the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the reference to the network equipment.

Optionally, the first duration is determined in one of the following manners:

An embodiment of the present invention further provides a network device, including: a memory storing executable program code;

a processor coupled to the memory;

the processor calls the executable program codes stored in the memory to execute the method for transmitting the clock information, which is executed by the network equipment in the embodiment of the invention.

For example, the terminal device in the embodiment of the present invention may be a mobile phone, and as shown in fig. 7, the mobile phone may include: radio Frequency (RF) circuitry 1110, memory 1120, input unit 1130, display unit 1140, sensors 1150, audio circuitry 1160, wireless fidelity (WiFi) module 1170, processor 1180, and power supply 1190. The rf circuit 1110 includes a receiver 1111 and a transmitter 1112. Those skilled in the art will appreciate that the handset configuration shown in fig. 9 is not intended to be limiting and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

RF circuit 1110 may be used for receiving and transmitting signals during a message transmission or call, and in particular, for receiving downlink messages from a base station and then processing the received downlink messages to processor 1180; in addition, the data for designing uplink is transmitted to the base station. In general, RF circuit 1110 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 1110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), long Term Evolution (LTE), email, short Message Service (SMS), etc.

The memory 1120 may be used to store software programs and modules, and the processor 1180 executes various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 1120. The memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, etc. Further, the memory 1120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 1130 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 1130 may include a touch panel 1131 and other input devices 1132. Touch panel 1131, also referred to as a touch screen, can collect touch operations of a user on or near the touch panel 1131 (for example, operations of the user on or near touch panel 1131 by using any suitable object or accessory such as a finger or a stylus pen), and drive corresponding connection devices according to a preset program. Alternatively, the touch panel 1131 may include two parts, namely a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1180, and can receive and execute commands sent by the processor 1180. In addition, the touch panel 1131 can be implemented by using various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 1130 may include other input devices 1132 in addition to the touch panel 1131. In particular, other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 1140 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The display unit 1140 may include a display panel 1141, and optionally, the display panel 1141 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting diode (OLED), or the like. Further, the touch panel 1131 can cover the display panel 1141, and when the touch panel 1131 detects a touch operation on or near the touch panel, the touch panel is transmitted to the processor 1180 to determine the type of the touch event, and then the processor 1180 provides a corresponding visual output on the display panel 1141 according to the type of the touch event. Although in fig. 11, the touch panel 1131 and the display panel 1141 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated to implement the input and output functions of the mobile phone.

The handset may also include at least one sensor 1150, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1141 and/or the backlight when the mobile phone moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Audio circuitry 1160, speakers 1161, and microphone 1162 may provide an audio interface between a user and a cell phone. The audio circuit 1160 may transmit the electrical signal converted from the received audio data to the speaker 1161, and convert the electrical signal into a sound signal for output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signals into electrical signals, which are received by the audio circuit 1160 and converted into audio data, which are then processed by the audio data output processor 1180, and then transmitted to, for example, another cellular phone via the RF circuit 1110, or output to the memory 1120 for further processing.

WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through a WiFi module 1170, and provides wireless broadband internet access for the user. Although fig. 7 shows the WiFi module 1170, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 1180 is a control center of the mobile phone, and is connected to various parts of the whole mobile phone through various interfaces and lines, and executes various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 1120 and calling data stored in the memory 1120, thereby performing overall monitoring of the mobile phone. Optionally, processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated within processor 1180.

The phone also includes a power supply 1190 (e.g., a battery) for powering the various components, and preferably, the power supply may be logically connected to the processor 1180 via a power management system, so that the power management system may manage charging, discharging, and power consumption management functions. Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.

In an embodiment of the present invention, the RF circuit 1110 is configured to receive reference clock information transmitted by a network device.

Optionally, the mobile phone further includes:

the RF circuit 1110 is configured to send first information to the network device before the RF circuit 1110 receives the reference clock information sent by the network device, where the first information is information related to the clock accuracy of the mobile phone.

Optionally, the RF circuit 1110 is specifically configured to receive reference clock information sent by the network device according to a sending period, where the sending period is determined by the network device according to the first information.

Optionally, the RF circuit 1110 is further configured to send the required clock synchronization performance requirement to the network device before receiving the reference clock information sent by the network device according to the sending period.

Optionally, the first information includes: at least one of a clock skew rate and a performance class index, the performance class index indicating clock performance of the handset.

the RF circuit 1110 is further configured to receive the semi-persistent scheduling resource configured by the network device before receiving the reference clock information transmitted by the network device.

Optionally, the RF circuit 1110 is specifically configured to receive, on the configured semi-persistent scheduling resource, the reference clock information sent by the network device according to the sending period.

Optionally, the mobile phone further includes:

the RF circuit 1110 is configured to send a control message to the network device before the RF circuit 1110 receives the reference clock information sent by the network device, where the control message is used to request the reference clock information from the network device.

Optionally, the RF circuit 1110 is further configured to send the control message to the network device again after sending the control message to the network device and after the first duration;

the first duration is the duration between two times of sending the control message to the network device by the mobile phone.

Optionally, the RF circuit 1110 is specifically configured to send the control message to the network device again after the timer expires;

the time length of the timer is set to be a first time length, the timer is started when the mobile phone sends the control message to the network equipment, or the timer is started after the mobile phone sends the control message to the network equipment.

Optionally, the first duration is determined in one of the following manners:

network device configuration, handset determination, and protocol specification.

For example, as shown in fig. 8, a network device in the embodiment of the present invention may be a base station, where the base station includes:

a transmitter 501, configured to transmit reference clock information to a terminal device.

Optionally, the network device further includes:

the receiver 502 is configured to receive first information sent by the terminal device before the transmitter 501 sends the reference clock information to the terminal device, where the first information is information related to the clock accuracy of the terminal device;

a processor 502, configured to determine a transmission period for transmitting the reference clock information according to the first information.

Optionally, the processor 503 is specifically configured to determine a sending period for sending the reference clock information according to the first information and a default synchronization performance requirement.

a receiver 502 for receiving a required clock synchronization performance requirement before the processor 503 determines a transmission period for transmitting the reference clock information according to the first information;

the processor 502 is specifically configured to determine a transmission period for transmitting the reference clock information according to the first information and the required clock synchronization performance requirement.

Optionally, the receiver 502 is specifically configured to receive a required clock synchronization performance requirement sent by the terminal device, or receive a required clock synchronization performance requirement in the TSN network.

Optionally, the transmitter 501 is specifically configured to transmit the reference clock information to the terminal device according to the transmission cycle.

and configuring semi-static scheduling resources to the terminal equipment.

Optionally, the receiver 502 is further configured to receive a control message sent by the terminal device before the transmitter 501 sends the reference clock information to the terminal device, where the control message is used to request the reference clock information from the network device.

the receiver 502 is further configured to receive the control message sent by the terminal device again after receiving the control message sent by the terminal device and after the first duration;

Optionally, the receiver 502 is specifically configured to receive the control message sent by the terminal device again after the timer expires;

Optionally, the first duration is determined in one of the following manners:

An embodiment of the present invention further provides a computer-readable storage medium, including: computer instructions, which when run on a computer, cause the computer to perform the various processes of the terminal device as in the above-described method embodiments.

An embodiment of the present invention further provides a computer-readable storage medium, including: computer instructions, which when run on a computer, cause the computer to perform the various processes of the network device as described in the method embodiments above.

The embodiment of the present invention further provides a computer program product, which includes computer instructions, and when the computer program product runs on a computer, the computer runs the computer instructions, so that the computer executes the processes of the terminal device in the above method embodiments.

Embodiments of the present invention further provide a computer program product, which includes computer instructions, and when the computer program product runs on a computer, the computer runs the computer instructions, so that the computer executes the processes of the network device in the above method embodiments.

The embodiment of the present invention further provides a chip, where the chip is coupled with a memory in the terminal device, so that when the chip runs, the chip calls a program instruction stored in the memory, and the terminal device executes each process of the terminal device in the foregoing method embodiments.

The embodiment of the present invention further provides a chip, where the chip is coupled with a memory in the network device, so that when the chip runs, the chip calls a program instruction stored in the memory, so that the network device executes each process of the network device in the above method embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, e.g., the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

A method of transmitting clock information, comprising:

and receiving reference clock information sent by the network equipment.
The method of claim 1, wherein before receiving the reference clock information sent by the network device, the method further comprises:

and sending first information to the network equipment, wherein the first information is information related to the clock accuracy of the terminal equipment.
The method of claim 2, wherein receiving reference clock information sent by a network device comprises:

and receiving reference clock information sent by the network equipment according to a sending period, wherein the sending period is determined by the network equipment according to the first information.
The method of claim 3, wherein the transmission period is determined by the network device according to the first information and a default synchronization performance requirement.
The method of claim 3, wherein the sending period is determined by the network device according to the first information and a required synchronization performance requirement.
The method of claim 5, wherein before receiving the reference clock information transmitted by the network device according to the transmission period, the method further comprises:

and sending the required clock synchronization performance requirement to the network equipment.
The method according to any one of claims 2 to 6,

the first information includes: at least one of a clock skew rate and a performance class index, the performance class index being indicative of a clock performance of the terminal device.
The method according to any one of claims 3 to 7, wherein before the receiving the reference clock information sent by the network device, the method further comprises:

and receiving the semi-static scheduling resources configured by the network equipment.
The method of claim 8, wherein the receiving the reference clock information sent by the network device comprises:

and receiving the reference clock information sent by the network equipment according to the sending period on the configured semi-static scheduling resource.
The method of claim 9,

and the scheduling period of the semi-static scheduling resources is determined according to the sending period.
The method of claim 1, wherein before receiving the reference clock information sent by the network device, the method further comprises:

and sending a control message to the network equipment, wherein the control message is used for requesting the reference clock information from the network equipment.
The method of claim 11, wherein after sending the control message to the network device, the method further comprises:

after the first time period, sending a control message to the network equipment again;

the first duration is the interval time between two times of sending the control message to the network equipment by the terminal equipment.
The method of claim 12, wherein after the first period of time, sending the control message to the network device again comprises:

after the timer is overtime, sending a control message to the network equipment again;

the time length of the timer is set to be the first time length, the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the control message to the network equipment.
The method of claim 12 or 13, wherein the first duration is determined based on at least one of clock performance and required clock synchronization performance requirements.
The method according to any one of claims 12 to 14, wherein the first time duration is determined in one of the following ways:

network device configuration, terminal device determination, and protocol specification.
A method of transmitting clock information, comprising:

and transmitting the reference clock information to the terminal equipment.
The method of claim 16, wherein prior to sending the reference clock information to the terminal device, the method further comprises:

receiving first information sent by a terminal device, wherein the first information is information related to the clock accuracy of the terminal device;

and determining a sending period for sending the reference clock information according to the first information.
The method of claim 17, wherein determining a transmission period for transmitting reference clock information based on the first information comprises:

and determining the sending period of the reference clock information according to the first information and the default synchronization performance requirement.
The method of claim 17,

before determining a transmission period for transmitting reference clock information according to the first information, the method further includes:

receiving a required clock synchronization performance requirement;

the determining, according to the first information, a transmission cycle for transmitting reference clock information includes:

and determining a sending period for sending the reference clock information according to the first information and the required clock synchronization performance requirement.
The method of claim 19, wherein receiving the required clock synchronization performance requirement comprises:

receiving a clock synchronization performance requirement of a requirement sent by the terminal equipment;

alternatively, the first and second electrodes may be,

clock synchronization performance requirements for TSN network requirements are received.
The method according to any one of claims 17 to 20, wherein the first information comprises: at least one of a clock skew rate and a performance class index, the performance class index being indicative of a clock performance of the terminal device.
The method according to any one of claims 17 to 21, wherein said sending reference clock information to the terminal device comprises:

and transmitting the reference clock information to the terminal equipment according to the transmission period.
The method of claim 22, wherein before transmitting the reference clock information to the terminal device according to the transmission cycle, the method further comprises:

and configuring semi-static scheduling resources to the terminal equipment.
The method of claim 23, wherein said transmitting the reference clock information to the terminal device according to the transmission cycle comprises:

and according to the sending period, sending the reference clock information to the terminal equipment on the configured semi-static scheduling resources.
The method according to claim 23 or 24, wherein the scheduling period of the semi-persistent scheduling resource is determined according to the transmission period.
The method of claim 16, wherein prior to sending the reference clock information to the terminal device, the method further comprises:

and receiving a control message sent by the terminal equipment, wherein the control message is used for requesting reference clock information to network equipment.
The method of claim 26, wherein after receiving the control message sent by the terminal device, the method further comprises:

after the first time length, receiving the control message sent by the terminal equipment again;

the first duration is the interval time between two times of sending the control message to the network equipment by the terminal equipment.
The method of claim 27, wherein the receiving the control message sent by the terminal device again after the first time period comprises:

after the timer is overtime, the control message sent by the terminal equipment is received again;

the time length of the timer is set to be the first time length, the timer is started when the terminal equipment sends a control message to the network equipment, or the timer is started after the terminal equipment sends a reference to the network equipment.
The method of claim 27 or 28,

the first duration is determined based on at least one of clock performance and a required clock synchronization performance requirement.
The method according to any one of claims 27 to 29, wherein the first time duration is determined in one of the following ways:

network device configuration, terminal device determination, and protocol specification.
A terminal device, comprising:

and the receiving module is used for receiving the reference clock information sent by the network equipment.
The terminal device of claim 31, wherein the terminal device further comprises:

the sending module is used for sending first information to the network equipment before the receiving module receives reference clock information sent by the network equipment, wherein the first information is information related to the clock accuracy of the terminal equipment.
The terminal device of claim 32,

the receiving module is specifically configured to receive reference clock information sent by the network device according to a sending period, where the sending period is determined by the network device according to the first information.
The terminal device of claim 33, wherein the sending period is determined by the network device according to the first information and a default synchronization performance requirement.
The terminal device of claim 33, wherein the sending period is determined by the network device according to the first information and a required synchronization performance requirement.
The terminal device of claim 35, wherein the sending module is further configured to send the required clock synchronization performance requirement to the network device before the receiving module receives the reference clock information sent by the network device according to the sending period.
The terminal device according to any of claims 32 to 35, wherein the first information comprises: at least one of a clock skew rate and a performance class index, the performance class index being indicative of a clock performance of the terminal device.
The terminal device according to any one of claims 33 to 37, wherein the receiving module is further configured to receive the semi-persistent scheduling resource configured by the network device before receiving the reference clock information sent by the network device.
The terminal device of claim 38, wherein the receiving module is specifically configured to receive, on the configured semi-persistent scheduling resource, reference clock information sent by the network device according to a sending period.
The terminal device of claim 39, wherein a scheduling period of the semi-persistent scheduling resource is determined according to the transmission period.
The terminal device of claim 31, wherein the terminal device further comprises:

a sending module, configured to send a control message to the network device before the receiving module receives the reference clock information sent by the network device, where the control message is used to request the network device for the reference clock information.
The terminal device according to claim 41, wherein the sending module is further configured to send the control message to the network device again after sending the control message to the network device and after the first time period;

the first duration is the duration between two times of sending the control message to the network equipment by the terminal equipment.
The terminal device of claim 42,

the sending module is specifically configured to send the control message to the network device again after the timer expires;

the time length of the timer is set to be the first time length, the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the control message to the network equipment.
A terminal device according to claim 42 or 43, wherein the first duration is determined in dependence on at least one of clock performance and required clock synchronisation performance requirements.
The terminal device according to any of claims 42 to 44, wherein the first time duration is determined in one of the following manners:

network device configuration, terminal device determination, and protocol specification.
A network device, comprising:

and the sending module is used for sending the reference clock information to the terminal equipment.
The network device of claim 46, wherein the network device further comprises:

the receiving module is used for receiving first information sent by the terminal equipment before the sending module sends reference clock information to the terminal equipment, wherein the first information is information related to the clock accuracy of the terminal equipment;

and the processing module is used for determining the sending period of the reference clock information according to the first information.
The network device of claim 47, wherein the processing module is specifically configured to determine a transmission period for transmitting reference clock information according to the first information and a default synchronization performance requirement.
The network device of claim 47,

before determining, according to the first information, a transmission period for transmitting reference clock information, the network device further includes:

the receiving module is used for receiving the required clock synchronization performance requirement before the processing module determines the sending period of the reference clock information according to the first information;

the processing module is specifically configured to determine a sending period for sending the reference clock information according to the first information and the required clock synchronization performance requirement.
The network device according to claim 49, wherein the receiving module is specifically configured to receive a required clock synchronization performance requirement sent by the terminal device, or receive a required clock synchronization performance requirement in a TSN network.
The network device of any one of claims 47 to 50, wherein the first information comprises: at least one of a clock skew rate and a performance class index, the performance class index being indicative of a clock performance of the terminal device.
The network device according to any one of claims 47 to 51, wherein the sending module is specifically configured to send the reference clock information to the terminal device according to the sending period.
The network device of claim 52, wherein before the transmitting the reference clock information to the terminal device according to the transmission cycle, the network device further comprises:

and configuring semi-static scheduling resources to the terminal equipment.
The network device of claim 53, wherein said transmitting the reference clock information to the terminal device according to the transmission cycle comprises:

and according to the sending period, sending the reference clock information to the terminal equipment on the configured semi-static scheduling resources.
The network device of claim 53 or 54, wherein a scheduling period of the semi-persistent scheduling resource is determined according to the transmission period.
The network device of claim 46, wherein the receiving module is further configured to receive a control message sent by a terminal device before the sending module sends the reference clock information to the terminal device, and the control message is used to request the reference clock information from the network device.
The network device of claim 56, wherein after receiving the control message sent by the terminal device, the method further comprises:

the receiving module is further configured to receive the control message sent by the terminal device again after receiving the control message sent by the terminal device and after the first duration;

the first duration is the duration between two times of sending the control message to the network equipment by the terminal equipment.
The network device according to claim 57, wherein the receiving module is specifically configured to receive the control message sent by the terminal device again after a timer expires;

the time length of the timer is set to be the first time length, the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the reference to the network equipment.
The network device of claim 57 or 58,

the first duration is determined based on at least one of clock performance and a required clock synchronization performance requirement.
The network device of any one of claims 57 to 59, wherein the first duration is determined in one of the following ways:

network device configuration, terminal device determination, and protocol specification.
A terminal device, comprising:

and the receiver is used for receiving the reference clock information sent by the network equipment.
The terminal device of claim 61, wherein the terminal device further comprises:

the receiver is used for receiving reference clock information sent by network equipment and sending first information to the network equipment before the receiver receives the reference clock information, wherein the first information is information related to the clock accuracy of the terminal equipment.
The terminal device of claim 62,

the receiver is specifically configured to receive reference clock information sent by the network device according to a sending period, where the sending period is determined by the network device according to the first information.
The terminal device of claim 63, wherein the sending period is determined by the network device according to the first information and a default synchronization performance requirement.
The terminal device of claim 63, wherein the sending period is determined by the network device according to the first information and a required synchronization performance requirement.
The terminal device of claim 63, wherein the transmitter is further configured to send a required clock synchronization performance requirement to the network device before the receiver receives the reference clock information sent by the network device according to the sending period.
The terminal device according to any of claims 62 to 66, wherein the first information comprises: at least one of a clock skew rate and a performance class index, the performance class index being indicative of a clock performance of the terminal device.
The terminal device of any one of claims 63 to 67, wherein before receiving the reference clock information sent by the network device, the method further comprises:

the receiver is further configured to receive the semi-persistent scheduling resource configured by the network device before receiving the reference clock information sent by the network device.
The terminal device of claim 68, wherein the receiver is specifically configured to receive, on the configured semi-persistent scheduling resource, reference clock information sent by the network device according to a sending period.
The terminal device of claim 69, wherein a scheduling period of the semi-persistent scheduling resource is determined according to the transmission period.
The terminal device of claim 61, wherein the terminal device further comprises:

the receiver is used for receiving reference clock information sent by the network equipment, and sending a control message to the network equipment before the receiver receives the reference clock information, wherein the control message is used for requesting the reference clock information from the network equipment.
The terminal device of claim 71, wherein the transmitter is further configured to send the control message to the network device again after sending the control message to the network device and after a first duration;

the first duration is the duration between two times of sending the control message to the network device by the terminal device.
The terminal device of claim 72,

the transmitter is specifically configured to send a control message to the network device again after the timer expires;

the time length of the timer is set to be the first time length, the timer is started when the terminal equipment sends the control message to the network equipment, or the timer is started after the terminal equipment sends the control message to the network equipment.
A terminal device according to claim 72 or 73, wherein the first duration is determined in dependence on at least one of clock performance and required clock synchronisation performance requirements.
The terminal device according to any of claims 72-74, wherein the first time duration is determined in one of the following manners:

network device configuration, terminal device determination, and protocol specification.
A network device, comprising:

and the transmitter is used for transmitting the reference clock information to the terminal equipment.
The network device of claim 76, wherein the network device further comprises:

the receiver is used for receiving first information sent by the terminal equipment before the transmitter sends reference clock information to the terminal equipment, wherein the first information is information related to the clock accuracy of the terminal equipment;

and the processor is used for determining the sending period of the reference clock information according to the first information.
The network device of claim 77, wherein the processor is configured to determine a transmission period for transmitting reference clock information according to the first information and a default synchronization performance requirement.
The network device of claim 78, wherein the network device further comprises:

the receiver is used for receiving the required clock synchronization performance requirement before the processor determines the sending period of the reference clock information according to the first information;

the processor is specifically configured to determine a transmission cycle for transmitting the reference clock information according to the first information and the required clock synchronization performance requirement.
The network device according to claim 79, wherein the receiver is specifically configured to receive a required clock synchronization performance requirement sent by the terminal device, or receive a required clock synchronization performance requirement in a TSN network.
Network device according to any of claims 77 to 80, wherein said first information comprises: at least one of a clock skew rate and a performance class index, the performance class index being indicative of a clock performance of the terminal device.
The network device according to any one of claims 77 to 81, wherein the transmitter is configured to transmit the reference clock information to the terminal device, in particular according to the transmission period.
The network device of claim 82, wherein before the transmitting the reference clock information to the terminal device according to the transmission cycle, the network device further comprises:

and configuring semi-static scheduling resources to the terminal equipment.
The network device of claim 83, wherein the sending the reference clock information to the terminal device according to the sending period comprises:

and according to the sending period, sending the reference clock information to the terminal equipment on the configured semi-static scheduling resources.
The network device of claim 83 or 84, wherein a scheduling period of the semi-persistent scheduling resource is determined according to the transmission period.
The network device of claim 76, wherein the receiver is further configured to receive a control message sent by a terminal device before the transmitter sends the reference clock information to the terminal device, and wherein the control message is configured to request the reference clock information from the network device.
The network device of claim 86, wherein after receiving the control message sent by the terminal device, the method further comprises:

the receiver is further configured to receive the control message sent by the terminal device again after receiving the control message sent by the terminal device and after the first duration;

the first duration is the duration between two times of sending the control message to the network equipment by the terminal equipment.
The network device according to claim 87, wherein the receiver is specifically configured to receive the control message sent by the terminal device again after a timer expires;

the time length of the timer is set to be the first time length, the timer is started when the terminal equipment sends a control message to the network equipment, or the timer is started after the terminal equipment sends a reference to the network equipment.
The network device of claim 87 or 88,

the first duration is determined based on at least one of clock performance and a required clock synchronization performance requirement.
The network device of any one of claims 87 to 89, wherein the first duration is determined in one of the following ways:

network device configuration, terminal device determination, and protocol specification.
A computer-readable storage medium, comprising: computer instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 15 or to perform the method of any one of claims 16 to 30.