CN115428362A

CN115428362A - Information processing method and device

Info

Publication number: CN115428362A
Application number: CN202080099915.6A
Authority: CN
Inventors: 付喆; 石聪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2022-12-02
Also published as: WO2021243614A1

Abstract

The embodiment of the application provides an information processing method and device, wherein the method comprises the following steps: the method comprises the steps that first network equipment acquires a first message, wherein the first message comprises at least one of the following: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment; the first network equipment sends a second message to a target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN terminal station. The first network device can identify terminal devices connected to the same TSN master clock according to the TSN master clock number transmitted by at least one terminal device, and can determine a terminal device providing clock synchronization service for the TSN master clock based on the first message.

Description

Information processing method and device

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to an information processing method and apparatus.

Background

Currently, the communication technology for interworking a third Generation Partnership project (3 gpp) Network and a Time Sensitive Network (TSN) is proposed in the communication field. Under the scenario of interworking between a 3GPP core network and a TSN, clock synchronization needs to be implemented between a sender and a receiver of many applications. When a plurality of terminal devices are connected to the same TSN master clock, the plurality of terminal devices may initiate a Protocol Data Unit (PDU) session establishment request to a network device to provide clock synchronization service, where one terminal device provides synchronization service for the TSN master clock. However, according to the existing protocol, the network device cannot distinguish whether the plurality of terminal devices are connected to the same TSN master clock, and after the terminal device currently providing the synchronization service for the TSN master clock leaves the network, the network device cannot find a suitable terminal device to continue providing the synchronization service for the TSN master clock.

Disclosure of Invention

The embodiment of the application provides an information processing method and device, which can determine terminal equipment for providing synchronous service for a TSN (time sequence number) master clock according to an uplink reference signal measurement result and/or a downlink reference signal measurement result.

In a first aspect, an embodiment of the present application provides an information processing method, where the method includes:

the method comprises the steps that first network equipment acquires a first message, wherein the first message comprises at least one of the following: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

and the first network equipment sends a second message to target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.

In a second aspect, an embodiment of the present application provides an information processing method, including:

the method comprises the steps that a terminal device sends a first message to a network device, wherein the first message comprises at least one of the following: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

the terminal device receives a second message from a network device, wherein the second message is used for indicating the terminal device to provide clock synchronization service for the TSN end station.

In a third aspect, an embodiment of the present application provides an information processing apparatus, including:

a processing unit, configured to obtain a first message, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

and the receiving and sending unit is used for sending a second message to the target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.

In a fourth aspect, an embodiment of the present application provides an information processing apparatus, including:

a transceiver unit, configured to send a first message to a network device, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

the transceiver unit is further configured to receive a second message from a network device, where the second message is used to instruct the terminal device to provide a clock synchronization service for the TSN end station.

In a fifth aspect, embodiments of the present application provide a network device comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing some or all of the steps described in the method of the first aspect.

In a sixth aspect, embodiments of the present application provide a terminal device, which includes a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing some or all of the steps described in the method of the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the method of the first aspect.

In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps described in the method of the second aspect.

In a ninth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the method according to the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

In a tenth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps described in the method according to the second aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in this embodiment of the present application, a first network device acquires a first message, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment; the first network equipment sends a second message to a target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN terminal station. The first network device can identify terminal devices connected to the same TSN master clock according to the TSN master clock number transmitted by at least one terminal device, and can determine a terminal device providing clock synchronization service for the TSN master clock based on the first message.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a TSN communication system according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a 5G-enabled TSN clock synchronization provided in an embodiment of the present application;

fig. 3 is a schematic flowchart of an information processing method provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

In order to better understand the scheme of the embodiments of the present application, the following first introduces the related terms and concepts that may be involved in the embodiments of the present application.

1) The terminal equipment is a device with a wireless communication function, can be deployed on land and comprises an indoor or outdoor, a handheld, a wearable or a vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in smart home (smart home), and the like. The terminal device may also be a handheld device with wireless communication capabilities, a vehicle mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, etc. The terminal devices in different networks may be called different names, for example: a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a Wireless communication device, a user agent or user equipment, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a terminal device in a 5G network or a future evolution network, etc., which are not limited in this embodiment of the present application.

2) A network device is a device deployed in a radio access network to provide wireless communication functions. For example, the Network device may be a Radio Access Network (RAN) device on an Access Network side in a cellular Network, and the RAN device is a device for accessing a terminal device to a wireless Network, and includes but is not limited to: evolved Node B (eNB), radio Network Controller (RNC), node B (NB), base Station Controller (BSC), base Transceiver Station (BTS), home Base Station (e.g., home evolved Node B, or Home Node B, HNB), base Band Unit (BBU), management Entity (Mobility Management Entity, MME), "mobile switching center (msc)"; for another example, the Network device may also be a node device in a Wireless Local Area Network (WLAN), such as an Access Controller (AC), a gateway, or a WIFI Access Point (AP); for another example, the network device may be a transmission Point (TRP), a Transmission Point (TP), or the like in the NR system. The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, and the like. The terminal may communicate with multiple access network devices of different technologies, for example, the terminal may communicate with an access network device of an LTE network, may communicate with an access network device supporting a 5G network, and may support dual connectivity with the access network device of the LTE network and the access network device of the 5G network. The embodiment of the present application does not limit this.

3) TSN: the method can ensure that the Ethernet has real-time performance and certainty, ensure the reliability of the transmission of the delay sensitive service data and can predict the end-to-end transmission delay. The TSN overcomes the defects that the traditional Ethernet can not provide high reliability and guarantee time delay transmission, and can meet the requirements of the fields of automobile control, industrial Internet and the like. The TSN includes a switching node (bridge) that can forward a packet according to a forwarding rule configured or created by the switching node, and a data terminal (data terminal) that can be divided into a sender (talker) and a receiver (listener). In order to implement end-to-end deterministic transmission, on the basis of a network architecture of a 5G system, a control Plane of a TSN adaptation Function is added on an Application Function (AF) network element, a User Plane of the TSN adaptation Function is added on a User Plane Function (UPF) network element and a User Equipment (UE), and these three components form a logical bridge, i.e., a virtual switching node, as a switching node in the TSN together with the 5G system.

4) PDU session (session) establishment: the PDU session establishment is used to establish a user plane connection between the terminal equipment and the 5G network for the transfer of user data. The initiator of the PDU session establishment procedure may be a terminal device or a network device. If the Device triggering Request is triggered by the network Device, the network Device sends a Device Trigger Request (DTR) to the terminal Device to instruct an application of the terminal Device to initiate a PDU session establishment Request. It is the terminal device that ultimately initiates the PDU session setup request.

In a first part, the architecture and background of the communication system of the solution disclosed in the present application are presented below.

For example, please refer to fig. 1, fig. 1 shows a schematic structural diagram of a TSN communication system according to an embodiment of the present application. The TSN communication system includes a TSN and a 5G system.

The 5G system comprises at least one terminal device, a first network device and a second network device. The first Network device may be a 5G Radio Access Network (RAN) device, and the second Network device may be a core Network element, which may include these Network elements: the system comprises a user equipment (RAN), a user equipment (UPF) responsible for processing user messages (such as forwarding, charging, lawful interception and the like), an Access and Mobility Management Function (AMF) responsible for Mobility Management and connected with the terminal equipment and the RAN, a Session Management Function (SMF) responsible for Session Management and connected with the AMF and the UPF, a Policy Control Function (PCF) responsible for Policy Control and connected with the SMF, a Unified Data Management (UDM) for uniformly managing service Data, and an AF for providing the service Data.

The TSN may include an End Station (ES) and a Centralized Network Controller (CNC) for uniformly managing traffic of the whole TSN communication system. As shown in fig. 1, a terminal Device in the 5G system is connected to one or more TSN End Stations (ES) in a TSN Data Network (DN) outside the 5G system through a Device Side TSN converter (DS-TT). The UPF is connected to one or more ESs in the TSN DN through a network TSN converter (NW-TT). Both DS-TT and NW-TT can provide ports (ports) for data transmission.

It should be understood that the embodiments of the present application are not limited to the system architecture shown in fig. 1. For example, a communication system to which the information processing method of the embodiment of the present application may be applied may include more or fewer network elements or devices. The devices or network elements in fig. 1 may be hardware, or may be functionally divided software, or a combination of the two. The devices or network elements in fig. 1 may communicate with each other through other devices or network elements.

Currently, each Time Sensitive Communication (TSC) service of a TSN Communication system requires a port provided by each of DS-TT and NW-TT to participate in data transmission of the TSC service. Before the TSC service is executed, two ports participating in data transmission (namely a port provided by a DS-TT and a port provided by a NW-TT) must realize accurate time synchronization with a clock of a 5G system, and the TSC service carries out data communication according to specified time strictly on the basis of completing the synchronization; this time refers to the time of the TSN Domain. The terminal device needs to perform strict clock synchronization with the network, for example, as shown in fig. 2, fig. 2 is a schematic diagram of 5G-enabled TSN clock synchronization provided in this embodiment of the present application. When a TSN end station is connected to a UPF (Universal Time Fidelity) terminal equipment UE1 and gNB and a core network element establish a PDU (Protocol data Unit) session, a TSN master clock sends a high-Precision clock synchronization Protocol (gPTP) to the UE1 after a delay of T _1, clock information is set to be T _ gm, the UE1 records gPTP arrival Time T _ i by using a 5G internal clock after the gPTP arrives, then sends gPTP information to the gNB through an uplink air interface, the gNB transmits the gPTP to the UPF, the UPF receives the gPTP information and sends the gPTP information to the TSN end station after a delay of T _2, and records that the Time of gPTP leaving a 5G system is T _ e by using the 5G internal clock, so that the clock of the TSN end station is updated to be T _ gm + T _ 1T \ T2T \ + T \ _2T _. When a TSN end station is connected with a terminal device, a PDU session is established between the terminal device UE1 and a gNB and a core network element, a TSN master clock transmits gPTP to the UE1 after experiencing delay T _1, clock information is set to be T _ gm, the UE1 records gPTP arrival time T _ i by using a 5G internal clock after gPTP arrives, then gPTP information is transmitted to the gNB through an uplink air interface, the gNB transmits the gPTP to the UE2, the UE2 receives the gPTP information and transmits the gPTP information to the TSN end station after experiencing delay T _2, and the 5G internal clock records that the gPTP leaves a 5G system as T _ e, so that the clock of the TSN end station is updated to be T _ gm + T _1+ T \/2 \/T \/e-T _ i. Thus, when multiple terminal devices are connected to the same TSN master clock, multiple terminal devices may initiate a PDU session setup request to the network device to provide clock synchronization services, where one terminal device provides synchronization services for the TSN master clock. However, according to the existing protocol, the network device cannot distinguish whether the plurality of terminal devices are connected to the same TSN master clock, and after the terminal device currently providing the synchronization service for the TSN master clock leaves the network, the network device cannot find a suitable terminal device to continue providing the synchronization service for the TSN master clock.

In view of the foregoing problems, the present application provides an information processing method and apparatus, where a first network device acquires a first message, where the first message includes at least one of the following: a TSN master clock number and a downlink reference signal measurement result of a clock sensitive network connected with the terminal equipment; the first network equipment sends a second message to target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station. The first network device can identify terminal devices connected to the same TSN master clock according to the TSN master clock number transmitted by at least one terminal device, and can determine a terminal device providing clock synchronization service for the TSN master clock based on the first message.

In the second section, the scope of protection of the claims disclosed in the embodiments of the present application is described below.

Referring to fig. 3, fig. 3 is a flowchart illustrating an information processing method according to an embodiment of the present application, where the method may be applied to the communication system shown in fig. 1, and as shown in fig. 3, the method includes the following steps:

s310, the terminal device sends a first message to the first network device, wherein the first message comprises at least one of the following: the method comprises the steps of a clock sensitive network TSN main clock number connected with terminal equipment and a downlink reference signal measuring result.

The first message may be Radio Resource Control (RRC) signaling, MAC Control Element (MAC CE) signaling, or broadcast message. The RRC signaling may include, but is not limited to, any one of an RRC Release message, an RRC connection reconfiguration message, an RRC connection request message, an RRC connection setup message, an RRC connection resume message, or other RRC message.

Further, the downlink reference signal measurement result may be a downlink reference signal measurement result obtained by the terminal device based on downlink reference information sent by the network device corresponding to the current serving cell or the network device corresponding to the neighboring cell. The downlink reference Signal may be a Synchronization Signal Block (SSB) and/or a Channel State Information reference Signal (CSI-RS) broadcast by the network device, and the downlink reference Signal measurement result may include at least one of: cell (cell) Reference Signal Received Power (RSRP), cell Reference Signal Received Quality (RSRQ), cell Signal to Interference plus Noise Ratio (SINR), cell Received Signal Strength Indicator (RSSI), SSB RSRP, SSB RSRQ, SSB SINR, SSB RSSI, CSI-RS RSRP, CSI-RS RSPQ, CSI-RS SINR, and CSI-RSSI RS.

In this embodiment, the terminal device sends the TSN master clock number to which it is connected to the first network device, so that the first network device and/or the second network device can identify whether multiple terminal devices in the communication system are connected to the same TSN master clock.

The first message is used for determining a target terminal device providing clock synchronization service for the TSN master clock, and the at least one terminal device comprises the target terminal device.

When a plurality of terminal devices are connected to the same TSN master clock, one of the terminal devices provides clock synchronization service for the TSN master clock. When the clock synchronization service provided for the TSN master clock is off-network or a terminal device is on-network, the plurality of terminal devices may send a first message to the first network device to help the first network device or the second network device select a suitable terminal device to provide the clock synchronization service for the TSN master clock.

S320, the first network equipment acquires the first message.

In one possible embodiment, the first network device determines the target terminal device based on the first message.

In this embodiment, in the coverage area of the first network device, the first network device may be connected to at least one terminal device, and the at least one terminal device may be connected to the same TSN master clock or may be connected to different TSN master clocks. Therefore, the first network device may obtain a first message of at least one terminal device, distinguish whether the at least one terminal device is connected to the same TSN master clock according to the first message, and select, from the at least one terminal device connected to the same TSN master clock, a terminal device with a best downlink reference signal measurement result or one of the terminal devices with a downlink reference signal measurement result higher than a given threshold as a target terminal device to provide a clock synchronization service for the TSN master clock.

Specifically, the first network device distinguishes terminal devices connected to the same TSN master clock from at least one terminal device according to the serial number of the TSN master clock connected to the terminal device, and then uses the terminal device with the best wireless signal quality in the downlink reference signal measurement result of the terminal devices connected to the same TSN master clock, or one of the terminal devices with the downlink reference signal measurement result higher than a given threshold as the terminal device providing clock synchronization service for the TSN master clock. For example, the first message sent by the terminal device 1 includes: the number of the connected TSN master clock is 0, and the current serving cell CSI-RS RSRP measurement result is-85 dBm, and the first message sent by the terminal device 2 includes: the number of the connected TSN master clock is 0, the current service cell CSI-RS RSRP measurement result is-70 dBm, and the first network device selects the terminal device 2 as the terminal device providing clock synchronization service for the TSN master clock because the CSI-RS RSRP measurement result of the terminal device 2 is larger than that of the terminal device 1.

In a possible embodiment, the method further comprises: and the terminal equipment sends the uplink reference signal to the first network equipment. Correspondingly, the first network equipment receives the uplink reference signal from at least one terminal equipment.

Specifically, the first network device sends different uplink reference signal configuration information to at least one terminal device, and each terminal device sends an uplink reference signal to the first network device after receiving corresponding uplink reference signal configuration information, where the uplink reference signal configuration information may include an uplink reference signal resource set, an uplink reference signal sending period, used spatial relationship information, and the like. Further, the uplink reference signal configuration information may further include transmission activation information of the uplink reference signal. In some examples, the transmission activation information of the uplink reference signal may also be transmitted to the terminal device through a separate signaling. After receiving the uplink reference signal configuration information, the terminal device may periodically send an uplink reference signal to the first network device according to the uplink reference signal sending period. The first network device receiving the uplink reference signal measures the uplink reference signal sent by each terminal device respectively to obtain the uplink reference signal measurement result of each terminal device and the first network device.

The uplink Reference Signal may be a channel Sounding Reference Signal (SRS). The uplink reference signal measurement result may include at least one of the following: RSRP, RSRQ, SINR, RSSI, SRS RSRP, SRS RSRQ, SRS SINR, SRS RSSI.

In some examples, when only the TSN master clock number to which the terminal device is connected is included in the first message, the terminal device may further send the measured downlink reference signal measurement result to the first network device to help the first network device determine the target terminal device.

In other examples, when the first message only includes a TSN master clock number connected to the terminal device, and the terminal device receives the uplink reference signal configuration information sent by the first network device, the terminal device may measure the uplink reference signal to the first network device, and the first network device that receives the uplink reference signal respectively performs measurement to obtain uplink reference signal measurement results of each terminal device and the first network device.

In other examples, when the first message only includes a TSN master clock number connected to the terminal device, the terminal device may send a downlink reference signal measurement result to the first network device, and after the terminal device receives uplink reference signal configuration information sent by the first network device, the terminal device may also send an uplink reference signal to the first network device, and the first network devices that receive the uplink reference signal respectively perform measurement to obtain uplink reference signal measurement results of each terminal device and the first network device.

In one possible embodiment, the determining, by the first network device, the target terminal device according to the first message includes: the first network device determines the target terminal device based on the TSN master clock number and a first measurement result, wherein the first measurement result includes at least one of a measurement result based on an uplink reference signal and a measurement result based on the downlink reference signal, and the measurement result of the uplink reference signal is obtained based on the measurement of the uplink reference signal.

The first message comprises a TSN master clock number and a downlink reference signal measurement result which are connected with the terminal equipment; or, the first message only includes a TSN master clock number to which the terminal device is connected, and when the terminal device sends the downlink reference signal measurement result to the first network device, the first network device may determine the target terminal device according to the TSN master clock number and the downlink reference signal measurement result.

Specifically, the first network device distinguishes terminal devices connected to the same TSN master clock from at least one terminal device according to the TSN master clock number connected to the terminal device, and then uses, as a target terminal device, a terminal device corresponding to the best radio signal quality in the downlink reference signal measurement results of the terminal devices connected to the same TSN master clock, or one of the terminal devices whose downlink reference signal measurement results are higher than a given threshold. For example, the first message sent by the terminal device 1 includes: the number of the connected TSN master clock is 0, the downlink reference signal measurement result carries the current serving cell CSI-RS RSRP measurement result-85 dBm, and the first message sent by the terminal device 2 includes: the number of the connected TSN master clock is 0, the downlink reference signal measurement result carries the current service cell CSI-RS RSRP measurement result of-70 dBm, and the first network device selects the terminal device 2 as the terminal device providing the clock synchronization service for the TSN master clock because the CSI-RS RSRP measurement result of the terminal device 2 is larger than the CSI-RS RSRP measurement result of the terminal device 1.

The first message only includes a TSN master clock number connected to the terminal device, and when the first network device receives the uplink reference signal, the first network device may measure the received uplink reference signal to obtain an uplink reference signal measurement result. And the first network equipment determines the target terminal equipment according to the TSN master clock number and the uplink reference signal measurement result.

Specifically, the first network device distinguishes terminal devices connected to the same TSN master clock from at least one terminal device according to the TSN master clock number connected to the terminal device, and then uses, as a target terminal device, a terminal device corresponding to the best radio signal quality in the uplink reference signal measurement result of the terminal devices connected to the same TSN master clock, or one of a plurality of terminal devices whose downlink reference signal measurement result is higher than a given threshold. For example, the first message sent by the terminal device 1 includes the number 0 of the connected TSN master clock, and the first message sent by the terminal device 2 includes the number 0 of the connected TSN master clock. The first network device configures different SRS configuration information for terminal device 1 and terminal device 2, and after receiving the SRS configuration information, terminal device 1 and terminal device 2 respectively send SRS to the first network device. The first network device measures the SRS received from the terminal device 1 and the terminal device 2, respectively, and obtains an SRS RSRP measurement result of-85 dBm for the terminal device 1 and an SRS RSRP measurement result of-70 dBm for the terminal device 2. Since the CSI-RS RSRP measurement result of the terminal device 2 is greater than the CSI-RS RSRP measurement result of the terminal device 1, the first network device selects the terminal device 2 as a terminal device that provides a clock synchronization service for the TSN master clock.

The first message comprises a TSN master clock number connected with the terminal equipment and a downlink reference signal measurement result, and the first network equipment receives an uplink reference signal; or, the first message only includes a TSN master clock number connected to the terminal device, and when the first network device receives the downlink reference signal measurement result and the uplink reference signal, the first network device measures the received uplink reference signal to obtain the uplink reference signal measurement result. And the first network equipment determines the target terminal equipment according to the TSN master clock number, the uplink reference signal measurement result and the downlink reference signal measurement result.

Specifically, the first network device distinguishes terminal devices connected to the same TSN master clock from at least one terminal device according to the TSN master clock number connected to the terminal device, and then takes the terminal device corresponding to the best radio signal quality in the uplink reference signal measurement result and the downlink reference signal measurement result of the terminal device connected to the same TSN master clock or one of the terminal devices whose downlink reference signal measurement result is higher than a given threshold as a target terminal device. For example, the first message sent by the terminal device 1 includes the number 0 of the connected TSN master clock, and the first message sent by the terminal device 2 includes the number 0 of the connected TSN master clock. The first network device configures different SRS configuration information for the terminal device 1 and the terminal device 2 respectively, and after receiving the SRS configuration information, the terminal device 1 and the terminal device 2 respectively send a downlink reference signal measurement result and an SRS to the first network device, wherein the current serving cell CSI-RS RSRP measurement result of the terminal device 1 is-85 dBm, and the current serving cell CSI-RS RSRP measurement result of the terminal device 2 is-70 dBm. The first network device measures the SRS received from the terminal device 1 and the terminal device 2, respectively, and obtains an SRS RSRP measurement result of-80 dBm for the terminal device 1 and an SRS RSRP measurement result of-75 dBm for the terminal device 2. Since the CSI-RS RSRP measurement result of the terminal device 2 is greater than the CSI-RS RSRP measurement result of the terminal device 1, and the SRS RSRP measurement result of the terminal device 2 is greater than the SRS RSRP measurement result of the terminal device 1, the first network device selects the terminal device 2 as a terminal device that provides a clock synchronization service for the TSN master clock.

S330, the first network equipment sends a second message to the terminal equipment, and the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN terminal station.

Wherein the second message is used for instructing the target terminal device to provide a clock synchronization service for the TSN end station, and includes:

and indicating the target terminal equipment to request to establish a Protocol Data Unit (PDU) session with the TSN end station and/or the 5G network element on the path.

In this embodiment of the present application, when a TSN end station is connected to a terminal device, after a first network device determines a target terminal device based on uplink reference signal measurement results and/or downlink reference signal measurement results of a plurality of terminals connected to the same TSN master clock, the first network device may send a second message to the target terminal device, where the second message may include a terminal identification number of the target terminal device, a TSN master clock number connected to the target terminal device, and a device trigger request, so as to indicate or allow an application of the target terminal device to initiate a PDU session establishment request related to a TSN master clock synchronization service to the TSN end station and/or a 5G network element on a path, and establish a corresponding PDU session, so that the target terminal device provides a clock synchronization service for the TSN master clock.

And S340, the terminal device receives a second message from the first network device.

In one possible embodiment, the method further comprises: the first network device sends a downlink reference signal measurement result to a second network device, where the downlink reference signal measurement result is used to instruct the second network device to determine the target terminal device, and the downlink reference signal measurement result at least includes one of the following: the TSN master clock number, the first measurement result and the identification number of the terminal equipment; and the first network equipment receives a fourth message from the second network equipment, wherein the fourth message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.

In this embodiment of the present application, when the TSN end station is connected to the UPF, the first network device passes through the first message sent by the terminal device to the second network device. The first message comprises a TSN (time sequence number) master clock number and a downlink reference signal measurement result connected with the terminal equipment; or, the first message includes a TSN master clock number connected to the terminal device, when the first network device receives a downlink reference signal measurement result sent by the terminal device, the first network device sends the terminal device identification number of the terminal device, the TSN master clock number connected to the terminal device, and the downlink reference signal measurement result to the second network device, and the second network device takes a terminal device corresponding to the best radio signal quality in the downlink reference signal measurement result, or one of the terminal devices whose downlink reference signal measurement result is higher than a given threshold, as a target terminal device.

The first message comprises TSN master clock numbers connected with the terminal equipment, when the first network equipment receives an uplink reference signal, the first network equipment measures the uplink reference signal, when an uplink reference signal measurement result is obtained, the first network equipment sends a terminal equipment identification number of the terminal equipment, the connected TSN master clock numbers and the uplink reference signal measurement result to the second network equipment, and the second network equipment takes the terminal equipment corresponding to the best wireless signal quality in the uplink reference signal measurement result or one of a plurality of terminal equipment with the downlink reference signal measurement result higher than a given threshold as target terminal equipment.

The first message comprises a TSN (time sequence number) master clock number and a downlink reference signal measurement result which are connected with the terminal equipment, and when the first network equipment receives an uplink reference signal, the first network equipment measures the uplink reference signal to obtain an uplink reference signal measurement result; or, when the first message includes a TSN master clock number connected to the terminal device, and the first network device receives the downlink reference signal measurement result and the uplink reference signal, the first network device measures the uplink reference signal to obtain an uplink reference signal measurement result, and when the first network device sends the terminal device identification number of the terminal device, the connected TSN master clock number, the downlink reference signal measurement result, and the uplink reference signal measurement result to the second network device, the second network device takes, as the target terminal device, the terminal device corresponding to the best radio signal quality in the uplink reference signal measurement result and the downlink reference signal measurement result, or one of the plurality of terminal devices whose downlink reference signal measurement result is higher than a given threshold.

Further, after the second network device determines the target terminal device, the second network device sends a fourth message to the first network device, and then the first network device transmits the fourth message to the target terminal device, so as to instruct or allow the application of the target terminal device to initiate a PDU session establishment request related to the TSN master clock synchronization service to the TSN end station and/or the 5G network element on the path, and establish a corresponding PDU session, so that the target terminal device provides the clock synchronization service for the TSN master clock.

In one possible embodiment, the method further comprises: and the first network device sends a fifth message to a terminal device which currently provides the clock synchronization service for the TSN end station, wherein the fifth message is used for indicating that the terminal device which provides the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station.

Wherein, the fifth message is used to indicate that the terminal device providing the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station, and includes:

and indicating the terminal equipment providing the clock synchronization service for the TSN end station to request to release the PDU session with the TSN end station and/or the 5G network element on the path.

Specifically, when the measurement result of the uplink reference signal and/or the measurement result of the downlink reference signal of the second terminal device are worse than those of the other terminal devices, the first network device may send a signaling to the terminal device currently providing the clock synchronization service for the TSN end station, instruct the terminal device currently providing the clock synchronization service for the TSN end station to request to release the PDU session with the TSN end station and/or the 5G network element on the path, and instruct an appropriate terminal device to initiate a PDU session establishment request related to the TSN master clock synchronization service to the TSN end station and/or the 5G network element on the path. Correspondingly, when the terminal equipment which currently provides the clock synchronization service for the TSN end station receives the fifth message from the first network equipment, the PDU session with the TSN end station and/or the 5G network element on the path is released.

For example, assuming that the terminal device 1 is a terminal device that currently provides a clock synchronization service for the TSN master clock, and the uplink reference signal measurement result and/or the downlink reference signal measurement result of the terminal device 1 is worse than the uplink reference signal measurement result and/or the downlink reference signal measurement result of the terminal device 2, the first network device uses the terminal device 2 as the first network device. The first network equipment sends signaling to the terminal equipment 1, instructs the terminal equipment 1 to release the PDU session related to the TSN master clock, sends a second message to the terminal equipment 2, and instructs the terminal equipment 2 to initiate a PDU session establishment request related to the TSN master clock synchronization service to the TSN end station and/or the 5G network element on the path.

It can be seen that, in this embodiment of the present application, a first network device acquires a first message, where the first message includes at least one of the following: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment; the first network equipment sends a second message to a target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN terminal station. The first network device can identify terminal devices connected to the same TSN master clock according to the TSN master clock number transmitted by at least one terminal device, and can determine a terminal device providing clock synchronization service for the TSN master clock based on the first message.

An information processing apparatus according to an embodiment of the present application is described in detail below with reference to fig. 4.

Referring to fig. 4, fig. 4 is an information processing apparatus 400 according to an embodiment of the present application, where the apparatus 400 may be a terminal device, and the apparatus 400 may be a first network device. The apparatus 400 comprises: a processing unit 410 and a transceiving unit 420,

in a possible implementation manner, the apparatus 400 is configured to execute the respective flows and steps corresponding to the first network device in the information processing method.

The processing unit 410 is configured to obtain a first message, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

the transceiving unit 420 is configured to send a second message to a target terminal device, where the second message is used to instruct the target terminal device to provide a clock synchronization service for a TSN end station.

Optionally, the second message is used to instruct the target terminal device to provide a clock synchronization service for the TSN end station, and includes:

Optionally, the processing unit 410 is further configured to:

and the first network equipment determines the target terminal equipment according to the first message.

Optionally, the processing unit is further configured to: acquiring an uplink reference signal;

in an aspect that the first network device determines the target terminal device according to the first message, the processing unit is specifically configured to: determining the target terminal device according to the TSN master clock number and a first measurement result, wherein the first measurement result at least comprises one of the following: and the downlink reference signal measurement result is based on the measurement result of the uplink reference signal, wherein the measurement result based on the uplink reference signal is measured by the first network equipment based on the uplink reference signal.

Optionally, the transceiver unit 420 is further configured to:

sending a downlink reference signal measurement result to a second network device, where the downlink reference signal measurement result is used to instruct the second network device to determine the target terminal device, and the downlink reference signal measurement result at least includes one of the following: the TSN master clock number, the first measurement result and the identification number of the terminal equipment;

and receiving a fourth message from the second network device, wherein the fourth message is used for indicating the target terminal device to provide clock synchronization service for the TSN end station.

Optionally, the transceiver unit 420 is further configured to:

and sending a fifth message to the terminal device which currently provides the clock synchronization service for the TSN end station, wherein the fifth message is used for indicating that the terminal device which provides the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station.

Optionally, the fifth message is used to indicate that the terminal device providing the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station, and includes:

In another possible implementation manner, the apparatus 400 is configured to execute the respective procedures and steps corresponding to the terminal device in the above location determining method.

A transceiving unit 420, configured to send a first message to a network device, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

the transceiving unit 420 is further configured to receive a second message from a network device, where the second message is used to instruct the terminal device to provide a clock synchronization service for the TSN end station.

Optionally, the second message is used to instruct the terminal device to provide a clock synchronization service for the TSN end station, and includes:

and indicating the terminal equipment to request to establish a Protocol Data Unit (PDU) session with the TSN end station and/or the 5G network element on the path.

Optionally, the transceiver unit 420 is further configured to: and sending an uplink reference signal to the network equipment.

It should be appreciated that the apparatus 400 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, it may be understood by those skilled in the art that the apparatus 400 may be specifically a terminal device and a first network device in the foregoing embodiment, and the apparatus 400 may be configured to execute each procedure and/or step corresponding to the terminal device and the first network device in the foregoing method embodiment, and is not described herein again to avoid repetition.

The apparatus 400 of each of the above schemes has a function of implementing corresponding steps executed by the terminal device and the first network device in the above method; the functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software comprises one or more modules corresponding to the functions; for example, the processing unit may be replaced by a processor, the transceiver unit may be replaced by a transmitter and a receiver, and the transceiving operations and the associated processing operations in the various method embodiments are performed separately.

In an embodiment of the present application, the apparatus 400 in fig. 4 may also be a chip or a chip system, for example: system on chip (SoC). Correspondingly, the transceiver unit may be a transceiver circuit of the chip, and is not limited herein.

Fig. 5 illustrates a computer device 500 provided by an embodiment of the application, where the computer device 500 includes a processor 510, a memory 520, a transceiver 530, and one or more programs, where the one or more programs are stored in the memory 520 and configured to be executed by the processor 510.

In one possible implementation, the computer device is a first network device, and the program includes instructions for performing the following steps:

obtaining a first message, wherein the first message comprises at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

and sending a second message to a target terminal device, wherein the second message is used for indicating the target terminal device to provide clock synchronization service for the TSN end station.

Optionally, in an aspect that the second message is used to instruct the target terminal device to provide a clock synchronization service for the TSN end station, the program includes instructions further for performing the following steps:

Optionally, the program includes instructions for performing the following steps: and determining the target terminal equipment according to the first message.

Optionally, the program includes instructions for performing the following steps: acquiring an uplink reference signal;

in respect of the first network device determining the target terminal device from the first message, the program comprises instructions further for: determining the target terminal device according to the TSN master clock number and a first measurement result, wherein the first measurement result at least comprises one of the following: and the downlink reference signal measurement result is based on the measurement result of the uplink reference signal, wherein the measurement result based on the uplink reference signal is measured by the first network device based on the uplink reference signal.

Optionally, the program includes instructions for performing the following steps: sending a downlink reference signal measurement result to a second network device, where the downlink reference signal measurement result is used to instruct the second network device to determine the target terminal device, and the downlink reference signal measurement result at least includes one of the following: the TSN master clock number, the first measurement result and the identification number of the terminal equipment;

and receiving a fourth message from the second network equipment, wherein the fourth message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.

Optionally, the program includes instructions for performing the following steps: and sending a fifth message to the terminal device which currently provides the clock synchronization service for the TSN end station, wherein the fifth message is used for indicating that the terminal device which provides the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station.

Optionally, in an aspect that the fifth message is used to indicate that the terminal device providing the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station, the program includes instructions further configured to perform the following steps:

and indicating the terminal equipment providing the clock synchronization service for the TSN end station to request to release the PDU conversation with the TSN end station and/or the 5G network element on the path.

In another possible implementation manner, the computer device is a terminal device, and the program includes instructions for performing the following steps:

transmitting a first message to a first network device, wherein the first message comprises at least one of: a TSN master clock number and a downlink reference signal measurement result of a clock sensitive network connected with the terminal equipment;

and receiving a second message from the first network equipment, wherein the second message is used for indicating the terminal equipment to provide clock synchronization service for the TSN end station.

Optionally, in an aspect that the second message is used to instruct the terminal device to provide a clock synchronization service for a TSN end station, the program includes instructions further configured to:

Optionally, the program includes instructions for performing the following steps: and sending an uplink reference signal to the first network equipment.

It will be appreciated that the memory 520 may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may also store device type information.

It should be understood that, in the embodiment of the present application, the processor 510 of the above apparatus may be a Central Processing Unit (CPU), and the processor 510 may also be other general processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in a memory, and a processor executes instructions in the memory, in combination with hardware thereof, to perform the steps of the above-described method. To avoid repetition, it is not described in detail here.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the terminal device in the above method embodiment.

Embodiments of the present application also provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in the above method for a terminal device. The computer program product may be a software installation package.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Those of ordinary skill in the art will appreciate that the various method steps and elements described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of both, and that the steps and elements of the various embodiments have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may substantially or partially contribute to the prior art, or all or part of the technical solutions may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered 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

An information processing method, characterized in that the method comprises:

the method comprises the steps that a first network device acquires a first message, wherein the first message comprises at least one of the following: a TSN master clock number and a downlink reference signal measurement result of a clock sensitive network connected with the terminal equipment;

and the first network equipment sends a second message to target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.
The method of claim 1, wherein the second message is used for instructing the target terminal device to provide a clock synchronization service for a TSN end station, and comprises:

and indicating the target terminal equipment to request to establish a Protocol Data Unit (PDU) session with the TSN end station and/or the 5G network element on the path.
The method according to claim 1 or 2, characterized in that the method further comprises:

and the first network equipment determines the target terminal equipment according to the first message.
The method of claim 3, further comprising:

the first network equipment acquires an uplink reference signal;

the determining, by the first network device, the target terminal device according to the first message includes:

the first network device determines the target terminal device according to the TSN master clock number and a first measurement result, wherein the first measurement result at least includes one of the following: and the downlink reference signal measurement result is based on the measurement result of the uplink reference signal, wherein the measurement result based on the uplink reference signal is measured by the first network device based on the uplink reference signal.
The method of claim 4, further comprising:

the first network device sends a downlink reference signal measurement result to a second network device, where the downlink reference signal measurement result is used to instruct the second network device to determine the target terminal device, and the downlink reference signal measurement result at least includes one of the following: the TSN master clock number, the first measurement result and the identification number of the terminal equipment;

and the first network equipment receives a fourth message from the second network equipment, wherein the fourth message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.
The method according to any one of claims 1-5, further comprising:

and the first network device sends a fifth message to a terminal device which currently provides the clock synchronization service for the TSN end station, wherein the fifth message is used for indicating that the terminal device which provides the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station.
The method of claim 6, wherein the fifth message is used for indicating that a terminal device providing the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station, and comprises:

and indicating the terminal equipment providing the clock synchronization service for the TSN end station to request to release the PDU session with the TSN end station and/or the 5G network element on the path.
An information processing method, characterized in that the method comprises:

the terminal device sends a first message to a first network device, wherein the first message comprises at least one of the following: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

and the terminal equipment receives a second message from the first network equipment, wherein the second message is used for indicating the terminal equipment to provide clock synchronization service for the TSN end station.
The method of claim 8, wherein the second message is used for instructing the terminal device to provide a clock synchronization service for a TSN end station, and comprises:

and indicating the terminal equipment to request to establish a Protocol Data Unit (PDU) session with the TSN end station and/or the 5G network element on the path.
The method according to claim 8 or 9, characterized in that the method further comprises:

and the terminal equipment sends an uplink reference signal to the first network equipment.
An information processing apparatus, characterized in that the apparatus comprises:

a processing unit, configured to obtain a first message, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

and the receiving and sending unit is used for sending a second message to the target terminal equipment, wherein the second message is used for indicating the target terminal equipment to provide clock synchronization service for the TSN end station.
The apparatus of claim 11, wherein the second message is used to instruct the target terminal device to provide clock synchronization service for a TSN end station, and comprises:

and indicating the target terminal equipment to request to establish a Protocol Data Unit (PDU) session with the TSN end station and/or the 5G network element on the path.
The apparatus according to claim 13 or 14, wherein the processing unit is further configured to:

and the first network equipment determines the target terminal equipment according to the first message.
The apparatus of claim 13, wherein the processing unit is further configured to:

acquiring an uplink reference signal;

in an aspect that the first network device determines the target terminal device according to the first message, the processing unit is specifically configured to:

determining the target terminal device according to the TSN master clock number and a first measurement result, wherein the first measurement result at least comprises one of the following: and the downlink reference signal measurement result is based on the measurement result of the uplink reference signal, wherein the measurement result based on the uplink reference signal is measured by the first network device based on the uplink reference signal.
The apparatus of claim 14, wherein the transceiver unit is further configured to:

sending a downlink reference signal measurement result to a second network device, where the downlink reference signal measurement result is used to instruct the second network device to determine the target terminal device, and the downlink reference signal measurement result at least includes one of the following: the TSN master clock number, the first measurement result and the identification number of the terminal equipment;

and receiving a fourth message from the second network device, wherein the fourth message is used for indicating the target terminal device to provide clock synchronization service for the TSN end station.
The apparatus according to any of claims 11-15, wherein the transceiver unit is further configured to:

and sending a fifth message to the terminal device which currently provides the clock synchronization service for the TSN end station, wherein the fifth message is used for indicating that the terminal device which provides the clock synchronization service for the TSN end station does not provide the clock synchronization service for the TSN end station.
The method according to any of claim 16, wherein the fifth message is used to indicate that a terminal device providing clock synchronization service for the TSN end station does not provide clock synchronization service for the TSN end station, and includes:

and indicating the terminal equipment providing the clock synchronization service for the TSN end station to request to release the PDU session with the TSN end station and/or the 5G network element on the path.
An information processing apparatus characterized in that the apparatus comprises:

a transceiver unit, configured to send a first message to a network device, where the first message includes at least one of: a clock sensitive network TSN master clock number and a downlink reference signal measurement result connected with the terminal equipment;

the transceiver unit is further configured to receive a second message from a network device, where the second message is used to instruct the terminal device to provide a clock synchronization service for the TSN end station.
The apparatus of claim 18, wherein the second message is configured to instruct the terminal device to provide a clock synchronization service for a TSN end station, and comprises:

and indicating the terminal equipment to request to establish a Protocol Data Unit (PDU) session with the TSN end station and/or the 5G network element on the path.
The apparatus according to claim 18 or 19, wherein the transceiver unit is further configured to:

and sending an uplink reference signal to the network equipment.
A network device comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7.
A terminal device, characterized in that the terminal device comprises a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for carrying out the steps in the method according to any one of claims 8-10.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-7.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 8-10.