CN114915988A

CN114915988A - Information transmission method, communication device, and storage medium

Info

Publication number: CN114915988A
Application number: CN202110185556.2A
Authority: CN
Inventors: 柯小婉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2022-08-16
Also published as: WO2022171048A1

Abstract

The application provides an information transmission method, a communication device and a storage medium, wherein the method comprises the following steps: performing a first operation, wherein the first operation comprises at least one of: only sending the first type message and/or the second type message to the first interface, not sending the first type message and/or the second type message to the terminal, and selecting a master clock for the terminal; rejecting a request for requesting a first synchronization; refusing to perform first QoS guarantee on a first service or first data flow; wherein the first synchronization comprises at least one of: the terminal and/or the first network are/is synchronized with a master clock outside the first network based on a second protocol, the terminal is synchronized with the master clock outside the first network based on reference time information, and time synchronization with first time precision is performed. The management effect of time synchronization can be improved.

Description

Information transmission method, communication device, and storage medium

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to an information transmission method, a communication device, and a storage medium.

Background

Many verticals have a need for time sensitive communications. In the industrial internet, there is time sensitive data, such as robot instructions, that need to be executed in order within a specified time. However, network transmission resources are shared, and data transmission has time delay and jitter, and cannot support time-sensitive data. In addition, in data networks, more and more services or applications are sensitive to transmission delays. Therefore, a time sensitive communication is proposed to support the transfer of time sensitive data. However, how to improve the management effect of time synchronization, such as determining whether to apply time synchronization and how to support time synchronization under different architectures, is a technical problem to be solved at present.

Disclosure of Invention

The embodiment of the application relates to an information transmission method, communication equipment and a storage medium, and aims to solve the problem of how to improve the management effect of time synchronization.

In a first aspect, an embodiment of the present application provides an information transmission method, which is executed by a first communication device, and includes:

performing a first operation, wherein the first operation comprises at least one of:

only messages of the first type and/or messages of the second type are sent to the first interface,

said first type of message and/or second type of message is not sent to the terminal,

selecting a master clock for the terminal;

denying the request for requesting the first synchronization;

refusing to guarantee a first Quality of Service (QoS) for a first Service or a first data flow;

wherein the content of the first and second substances,

the first synchronization comprises at least one of: the terminal and/or the first network are/is synchronized with a master clock outside the first network based on a second protocol, the terminal is synchronized with the master clock outside the first network based on reference time information, and time synchronization with first time precision is performed;

the first type message is used for sending related information of a clock;

the second type message is a related message of a time synchronization protocol;

the first interface includes: an interface for connecting a data Network, and a port on a Network-side time-sensitive Network adapter (NW-TT);

the first QoS guarantee comprises at least one of: time sensitive communication guarantee and time delay guarantee, wherein the first data flow or the second data channel is guaranteed according to the time sensitive communication auxiliary information;

the second data channel is a data channel that carries data of the first service or first data traffic.

In a second aspect, an embodiment of the present application provides an information transmission method, which is executed by a second communication device, and includes:

performing a second operation, wherein the second operation comprises at least one of:

sending first information;

skipping or discarding the sending of the second information;

wherein the first information comprises at least one of: a (Medium Access Control, MAC) address of the terminal or an IP address of the terminal; the residence time of the terminal; first indication information; fourth indication information;

wherein the first indication information is used for indicating at least one of the following items:

the terminal is a termination point of a first service or a first data flow or the terminal is not a termination point of the first service or the first data flow;

the terminal is combined with a Device-side time-sensitive network adapter (DS-TT);

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support a first protocol, and the first protocol is used for selecting a master clock;

the terminal supports or does not support the second type message;

the terminal supports or does not support time synchronization based on a second protocol;

the terminal supports or does not support obtaining reference time information;

the terminal supports or does not support time synchronization based on the reference time information;

the terminal supports or does not support time synchronization of a first time precision;

wherein the fourth indication information is used for indicating at least one of the following items:

the first service or the first data traffic may or may not require a first synchronization;

the first QoS guarantee may or may not require first synchronization;

the characteristics of the first service or the first data flow comprise or do not comprise time-related parameters;

the first service or first data traffic requires or does not require synchronization of the terminal with a master clock of the first network;

wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

In a third aspect, an embodiment of the present application provides an information transmission method, which is executed by a third communication device, and includes:

receiving at least one of a first type message and a second type message, wherein the first type message is used for sending related information of a clock, and the second type message is related information of a time synchronization protocol;

performing a third operation according to at least one of the first type message and the second type message, wherein the third operation comprises at least one of:

discarding or ignoring the received first type of message;

discarding or ignoring the received second type of message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

a class of operation that skips a third operation, wherein the class of operation of the third operation comprises at least one of:

operating the received second type message;

and sending the operated second type message to the downstream communication equipment.

In a fourth aspect, an embodiment of the present application provides an information transmission method, which is executed by a fourth communication device, and includes:

performing a fourth operation, the fourth operation comprising:

sending fourth information, the fourth information comprising at least one of: second indication information, third indication information, a synchronization period, information of a time domain, service description information, description information of data flow and first time precision;

wherein the content of the first and second substances,

the second indication information is used for indicating at least one of the following: requiring a terminal to acquire reference time information, requiring the terminal to perform time synchronization based on the acquired reference time information, and requiring the terminal and a Radio Access Network (RAN) to perform time synchronization of first time precision and first time precision;

the third indication information is used for requesting the terminal residence time.

In a fifth aspect, an embodiment of the present application provides an information transmission method, which is executed by a fifth communication device, and includes:

obtaining fourth information, the fourth information comprising at least one of: second indication information and/or third indication information, a synchronization period, information of a time domain, service description information, description information of data flow, and first time precision;

executing a fifth operation according to the fourth information, wherein the fifth operation comprises:

the reference time information is acquired and,

time synchronization is performed based on the acquired reference time information,

performing time synchronization with the RAN for a first time accuracy;

sending terminal residence time;

wherein the content of the first and second substances,

the second indication information is used for indicating at least one of the following: requiring a terminal to acquire reference time information, requiring the terminal to perform time synchronization based on the acquired reference time information, and requiring the terminal and a Radio Access Network (RAN) to perform time synchronization with first time precision and first time precision;

the third indication information is used for requesting the residence time of the terminal.

In a sixth aspect, an embodiment of the present application provides an information transmission method, which is executed by a sixth communication device, and includes:

performing a sixth operation, the sixth operation comprising one of:

transmitting the reference time information and the first description information,

sending reference time information, wherein the reference time information does not contain first description information;

and sending reference time information, wherein the reference time information comprises first description information.

Wherein the first description information includes at least one of: service description information and description information of data flow.

In a seventh aspect, an embodiment of the present application provides a communication device, where the communication device is a first communication device, and the communication device includes:

an execution module to execute a first operation, wherein the first operation comprises at least one of:

selecting a master clock for the terminal;

rejecting a request for requesting a first synchronization;

refusing to perform first service quality QoS guarantee on a first service or a first data flow;

wherein, the first and the second end of the pipe are connected with each other,

the first type message is used for sending related information of a clock;

the first interface includes: an interface connected with a data network, and a port on a network side time sensitive network adapter NW-TT;

the second data channel is a data channel carrying data of the first service or first data traffic.

In an eighth aspect, an embodiment of the present application provides a communication device, where the communication device is a second communication device, and the communication device includes:

an execution module configured to execute a second operation, wherein the second operation includes at least one of:

sending first information;

skipping or discarding the sending of the second information;

wherein the first information comprises at least one of: the MAC address of the terminal or the IP address of the terminal; the residence time of the terminal; first indication information; fourth indication information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

wherein the fourth indication information is used for indicating at least one of the following:

the first QoS guarantee may or may not require first synchronization;

wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

In a ninth aspect, an embodiment of the present application provides a communication device, where the communication device is a third communication device, and the communication device includes:

the receiving module is used for receiving at least one of a first type message and a second type message, wherein the first type message is used for sending related information of a clock, and the second type message is related to a time synchronization protocol;

an execution module, configured to execute a third operation according to at least one of the first type message and the second type message, where the third operation includes at least one of:

discarding or ignoring the received first type of message;

discarding or ignoring the received second type of message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

operating the received second type message;

In a tenth aspect, an embodiment of the present application provides a communication device, where the communication device is a fourth communication device, and the communication device includes:

an execution module to execute a fourth operation, the fourth operation comprising:

a sending module, configured to send fourth information, where the fourth information includes at least one of the following: second indication information, third indication information, a synchronization period, information of a time domain, service description information, description information of data flow and first time precision;

wherein the content of the first and second substances,

In an eleventh aspect, an embodiment of the present application provides a communication device, where the communication device is a fifth communication device, and the communication device includes:

an obtaining module, configured to obtain fourth information, where the fourth information includes at least one of: second indication information and/or third indication information, a synchronization period, information of a time domain, service description information, description information of data flow, and first time precision;

an execution module, configured to execute a fifth operation according to the fourth information, where the fifth operation includes:

the reference time information is acquired and,

performing time synchronization with the RAN for a first time accuracy;

sending terminal residence time;

wherein the content of the first and second substances,

In a twelfth aspect, an embodiment of the present application provides a communication device, where the communication device is a sixth communication device, and the communication device includes:

an execution module to execute a sixth operation, the sixth operation comprising one of:

a transmitting module for transmitting the reference time information and the first description information,

In a thirteenth aspect, an embodiment of the present application provides a communication device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implements the steps of the information transmission method on the first communication device side provided by the embodiments of the present application, or, the steps of the information transmission method on the second communication device side provided in the embodiment of the present application are realized, or, the steps of the information transmission method on the third communication device side provided in the embodiment of the present application are realized, or, the steps of the information transmission method on the fourth communication device side provided in the embodiment of the present application are implemented, or, the steps of the information transmission method at the fifth communication device side provided in the embodiment of the present application are implemented, or, the steps of the information transmission method on the sixth communication device side provided in the embodiment of the present application are implemented.

In a fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer program is stored, and the computer program, when executed by a processor, implements a step of an information transmission method on a first communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a second communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a third communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a fourth communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a fifth communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a sixth communication device side provided in the embodiment of the present application.

In an embodiment of the present application, a first operation is performed, where the first operation includes at least one of: only sending a first type message and/or a second type message to a first interface, not sending the first type message and/or the second type message to a terminal, and selecting a master clock for the terminal; rejecting a request for requesting a first synchronization; refusing to perform first service quality QoS guarantee on a first service or a first data flow; wherein the first synchronization comprises at least one of: the terminal and/or the first network are/is synchronized with a master clock outside the first network based on a second protocol, the terminal is synchronized with the master clock outside the first network based on reference time information, and time synchronization with first time precision is performed; the first type message is used for sending related information of a clock; the second type message is a related message of a time synchronization protocol; the first interface includes: an interface connected with a data network and a port on a network side time sensitive network adapter NW-TT; the first QoS guarantee comprises at least one of: time sensitive communication guarantee and time delay guarantee, wherein the first data flow or the second data channel is guaranteed according to the time sensitive communication auxiliary information; the second data channel is a data channel that carries data of the first service or first data traffic. Thus, since the first operation is performed, the management effect of time synchronization can be improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1-a is a schematic diagram of an architecture of an applicable wireless communication system according to an embodiment of the present invention;

fig. 1-B is a block diagram of an architecture of a wireless communication system according to an embodiment of the present invention;

fig. 1-C is a block diagram of an applicable wireless communication system according to an embodiment of the present invention;

fig. 2 is a flowchart of an information transmission method according to an embodiment of the present invention;

fig. 3 is a flowchart of another information transmission method according to an embodiment of the present invention;

fig. 4 is a flowchart of another information transmission method according to an embodiment of the present invention;

fig. 5 is a flowchart of another information transmission method according to an embodiment of the present invention;

fig. 6 is a flowchart of another information transmission method according to an embodiment of the present invention;

fig. 7 is a flowchart of another information transmission method according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of another application scenario provided in an embodiment of the present invention;

FIG. 9 is a schematic diagram of another application scenario provided in an embodiment of the present invention;

fig. 10 is a block diagram of another communication device provided by the present invention;

fig. 11 is a block diagram of a communication device provided by the present invention;

fig. 12 is a block diagram of another communication device provided by the present invention;

fig. 13 is a block diagram of another communication device provided by the present invention;

fig. 14 is a block diagram of another communication device provided by the present invention;

fig. 15 is a block diagram of another communication device provided by the present invention;

fig. 16 is a block diagram of another communication device provided by the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in a relationship of "and/or".

It is to be noted that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) system, and may also be implemented in a LTE-Advanced (LTE-a) systemFor other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and others. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) ^th Generation, 6G) communication system.

In the embodiments of the present application, Time sensitivity (Time Sensing) may also be referred to as Periodic deterministic (Periodic deterministic). Time-sensitive communications may also be referred to as Periodic deterministic communications (Periodic deterministic communications). A time-sensitive data stream may also be referred to as a periodic deterministic data stream. A Time sensitive Network technology such as IEEE TSN (Time Sensing Network). The periodic deterministic communication is data transfer with a transfer interval as a period.

The embodiments of the present application include, but are not limited to, the following architectures:

fig. 1-a shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes: a termination point for traffic or data traffic, a DS-TT, a terminal, a first network, a data network and an Application Function (AF). As described in fig. 1-a, the terminal is not the termination point for traffic or data traffic. The terminal node is connected with the terminal through the DS-TT.

Fig. 1-B illustrates a block diagram of another wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes: terminal, first network, data network and AF. As shown in FIG. 1-B, the terminal is a termination point, but DS-TT is not supported on the terminal

Fig. 1-C illustrates a block diagram of another wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes: the terminal comprises a terminal, a first network, a data network and an Application Function (AF), wherein the terminal is integrated with the DS-TT. As shown in fig. 1-C, the terminal is a terminal node and the DS-TT function is supported on the terminal.

In this embodiment of the application, the terminal may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a terminal side Device called as a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a Vehicle-mounted Device (Vehicle User Equipment, VUE), a Pedestrian terminal (Pedestrian User Equipment, PUE), and the like, where the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11.

In an embodiment of the present application, the first network includes a RAN network element and a core network element (CN network element).

The core network element (CN network element) may include, but is not limited to, at least one of the following: core Network equipment, core Network nodes, core Network functions, core Network elements, Mobility Management Entity (MME), Access Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Serving Gateway (GW, SGW), PDN Gateway (PDN Gateway), Policy Control Function (Policy Control Function, PCF), Time sensitive Network Application Function (TSN AF) Policy and Charging Rules Function unit (Policy and Charging Function, PCRF), Serving GPRS Support Node (Serving GPRS Support Node, SGSN), Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN), GGSN Unified Data Management (GGSN, Unified Data Management), and open Data storage Network (UDR), NEF), Home Subscriber Server (HSS), Application Function (AF), Centralized Network Configuration (CNC). Where UPF may be integrated with NW-TT, of course, in some embodiments, both may not be integrated.

It should be noted that the first network in fig. 1-a, 1-B and 1-C is only an example, and in the embodiment of the present application, the network architecture of the first network is not limited.

In the embodiment of the present application, the RAN network element may include, but is not limited to, at least one of the following: radio Access Network equipment, Radio Access Network nodes, Radio Access Network functions, Radio Access Network units, 3GPP Radio Access Networks, Non-3GPP Radio Access Networks, Centralized Units (CUs), Distributed Units (DUs), bss, evolved bss (evolved Node B, eNB), 5G bss (gNB), Radio Network controllers (Radio Network controllers, RNC), bss (NodeB), Non-3GPP InterWorking functions (Non-3GPP Inter Working Function, N3IWF), Access control (Access Controller, AC) nodes, Access Point (AP) devices, or Wireless Local Area Networks (WLAN) nodes, Non-3GPP functions (Non-3GPP InterWorking Function, N3 GPP InterWorking Function, IWF).

The embodiment of the application can at least solve the following technical problems:

the first problem is that: when a 5G Master clock (GM) is used, the NW-TT generates a notification message (announce message) to the DS-TT, which sends it to the external device through its port. However, when the terminal is the end station, the terminal already obtains the 5G system (5GS) clock from the RAN, and does not need to obtain the notification message any more.

The NW-TT may recognize this and does not send a notification message to the terminal of the end station.

The second problem is that: when the terminal master clock is a 5G clock, the terminal synchronizes to the 5G clock from the RAN node. The terminal needs to skip the process of generating the gPTP/PTP message.

The third problem is that: for a common IP protocol data unit Session (IP PDU Session), AF triggers a time sensitive service, which may adopt three clocks: 1)5G GM; 2) external master clock (external GM); 3) and a mechanism other than gPTP or PTP, such as Network Time Protocol (NTP). How the terminal knows which type of 5G GM should be listened to.

In the embodiment of the present application, optionally, obtaining or acquiring may be understood as obtaining from configuration, receiving after a request, obtaining by self-learning, deriving and acquiring according to unreceived information, or obtaining according to processing of received information, which may be determined according to actual needs, and is not limited in the embodiment of the present application. For example, when a certain capability indication sent by the device is not received, it can be deduced that the device does not support the capability.

Optionally, the sending may include broadcasting, broadcasting in a system message, and returning after responding to the request.

In an optional embodiment of the present application, the communication device may comprise at least one of: a communication network element and a terminal.

In one embodiment of the present application, the communication network element may include at least one of: a core network element and a radio access network element.

In an embodiment of the present application, the port may be an ethernet port or an IP port.

In an alternative embodiment of the present application, the channel may include, but is not limited to, one of: PDU session, PDN connection, QoS flow, Bearer, Internet Protocol Security (IPsec) channel, where the Bearer may be an Evolved Radio Access Bearer (E-RAB), an Evolved Radio Access Bearer (RAB), a Data Radio Bearer (DRB), a Signaling Radio Bearer (SRB), and the like.

In an alternative embodiment of the present application, the port of TT, the port on TT side, and the port on TT side represent the same meaning and may be mixed.

In an alternative embodiment of the present application, the dwell time between the terminal and the DS-TT (also referred to as the terminal-to-DS-TT delay) comprises the time required for a data packet to traverse the terminal and the DS-TT.

In an alternative embodiment of the present application, the terminal residence time includes one of: the time required for the data packet to pass through the terminal, the time required for the data packet to pass through the terminal when being sent from the application client, and the time required for the data packet to reach the application client when passing through the terminal.

In an optional embodiment of the present application, the terminal not supporting DS-TT includes at least one of: the terminal does not support the DS-TT function and the terminal does not support the DS-TT connection. The DS-TT function comprises at least one of: the first type message, the first protocol, the second protocol and the second type message support the acquisition of reference time information, the time synchronization based on the reference time information and the time synchronization with the first time precision.

In an optional embodiment of the present application, the reference time information or the reference time is provided by a RAN network element.

In an alternative embodiment of the present application, the first service or the first data traffic may be used to generally refer to a service, or to refer to one or more services.

In an optional embodiment of the present application, the first service or the first data traffic includes at least one of: time-sensitive services, services requiring time synchronization of a first time precision.

In an alternative embodiment of the present application, the termination point (e.g., End Station) comprises at least one of: the consumer of the service, the executor of the service, the data of the service will not be passed on.

In an alternative embodiment of the present application, the residence time may also be referred to as at least one of the following: link latency, link time overhead, dwell time overhead.

In an optional embodiment of the present application, the terminating the terminal as the first service or the first data traffic includes an application (e.g. an application client) in the terminal as the terminating node of the first service or the first data traffic

The first type message is a first type message generated directly by the first communication device or generated based on a received first type message outside the first network

In an optional embodiment of the present application, the service description information includes at least one of the following: type information of the service, identification information of the service. The service type information includes at least one of: time sensitive services, services based on TSCAI guarantees, time synchronization services, time sensitive networks, and the like.

In an optional embodiment of the present application, the description information of the data traffic includes at least one of: the application description information, the target IP address, the target port, the source IP address, the source port, the protocol number, the data field DNN, the non-IP description information, the field description information and the connection capability.

In an optional embodiment of the present application, the description information of the application includes at least one of: identification information of an operating system, identification information of an application.

In an optional embodiment of the present application, the description information of the domain includes at least one of: domain name description, FQDN.

In an alternative embodiment of the present application, time synchronization is synonymous with clock synchronization. Can be mixed for use.

In an alternative embodiment of the present application, the temporal precision is synonymous with temporal granularity. Time precision may be used to represent a unit of time.

In an optional embodiment of the present application, the reference time information includes at least one of:

a reference time comprising a reference time of a first time precision;

type information of the reference time (e.g., UTC, or DST, or GPS, or local time);

precision (or granularity) of the reference time (e.g., 1ns, 10ns, 1us, 1ms, 10ms, or 1 s);

time domain information of a reference time;

description information of data traffic applicable with reference to time;

time accuracy of the reference time;

the synchronization period of the reference time.

In one embodiment, the reference time information is identical to the reference time.

In an alternative embodiment of the present application, determining the master clock includes determining an optimal master clock

In an optional embodiment of the present application, the second protocol comprises at least one of: generalized precise clock protocol gPTP, precise clock protocol PTP, network clock protocol NTP;

in an optional embodiment of the present application, the second type message includes at least one of: related information of a generalized precise clock protocol gPTP, related information of a precise clock protocol PTP and related information of a network clock protocol NTP.

In an alternative embodiment of the present application, the first type of message comprises an announce message in a BMCA (best master clock algorithm) protocol. The announce message can be used to send information on the characteristics of the clock, which other devices in the time domain use for the optimal master clock algorithm.

In an alternative embodiment of the present application, the provisioning of time-sensitive communications includes provisioning based on time-sensitive communications characteristic information. Time-sensitive communication assistance information may be generated based on the time-sensitive communication characteristic information. The time-sensitive communication assistance information may include one or more items of time-sensitive communication characteristic information.

In an alternative embodiment of the present application, the time-sensitive communication characteristic information and/or the time-sensitive communication assistance information includes one of the following indications: the data packet arrival time, the interval period between data packets, the direction, the size of the data packet, the time delay requirement, the transmission rate requirement, the information of a time domain, the fourth indication information, the synchronization period, the information of the time domain, the service description information, the description information of the data flow, and the first time precision. In one embodiment, the interval period between packets is calculated starting at the time when the transmission of the packet is started. The inter-packet gap period may also be referred to as a packet arrival period or a packet transmission period.

In an alternative embodiment of the present application, the port state is a port state of a port of a bridge formed by a communication network. The first bridge may be a bridge of a communication network.

As shown in fig. 1-a, the bridge may be comprised of a DS-TT, a UE and a first network. The bridge may be formed by a first network, as described in fig. 1-B. The bridge may be formed of a first network and a DS-TT, as described in fig. 1-C. The first network may or may not support NW-TT.

In an alternative embodiment of the present application, the synchronizing of the terminal with the master clock of the first network comprises at least one of: and the terminal acquires the reference time information of the first network and carries out synchronization according to the reference time information. In one embodiment, the reference time information is provided by a RAN network element of the first network.

Referring to fig. 2, an embodiment of the present invention provides an information transmission method executed by a first communication device. The first communication device includes, but is not limited to, a RAN network element or a core network element (e.g., one of NW-TT, gateway (e.g., UPF), PCF, NEF, AF); the RAN network element or the core network element may be a communication device in a first network, the method comprising:

step 201, executing a first operation, wherein the first operation comprises at least one of the following:

selecting a master clock for the terminal;

rejecting a request for requesting a first synchronization;

refusing to perform first QoS guarantee on a first service or first data flow;

wherein the content of the first and second substances,

the first type message is used for sending related information of a clock;

the first interface includes: an interface for connecting a data network, a port on the NW-TT;

In one embodiment, the first interface is an interface or a port (e.g., a port of NW-TT) on the gateway.

In one embodiment, the sending of the first type message and/or the second type message only to the first interface may include sending the first type message and/or the second type message only to the data network.

In one embodiment, the sending of the first type message and/or the second type message only to the first interface may be sending the first type message and/or the second type message only through a port of the NW-TT.

In one embodiment, the sending of the first type message and/or the second type message only to the first interface may be sending the first type message and/or the second type message only to the data network and the port through the NW-TT.

In one embodiment, the first type message may be a notification message (announce message).

In one embodiment, the first type of message may be used to determine a master clock, such as to determine an optimal master clock.

Optionally, where the first communications device comprises an AF, UPF and/or NW-TT, the first operation may comprise at least one of the following.

a master clock is selected for the terminal.

Optionally, when the first communication device comprises a NEF, the first operation may comprise at least one of the following.

Denying the request for requesting the first synchronization;

and refusing to perform the first QoS guarantee on the first service or the first data flow.

Optionally, the first type message includes service description information or description information of data traffic associated with the first type message;

and/or

The second type message comprises service description information or description information of data traffic associated with the second type message;

and/or

Under the condition of sending the first type message, simultaneously sending service description information or description information of data traffic related to the first type message;

and under the condition of sending the second type message, simultaneously sending service description information or data flow description information associated with the second type message.

In one embodiment, a suffix field of the first type message includes description information of the data traffic.

In one embodiment, in the case of sending the first type message to the terminal, service description information or description information of data traffic associated with the first type message is also sent to the terminal at the same time.

In one embodiment, in the case of sending the second type message to the terminal, service description information or description information of data traffic associated with the second type message is also sent to the terminal at the same time.

In one embodiment, when the first type message is sent to the first interface, service description information or description information of data traffic associated with the first type message is also sent to the first interface at the same time.

In one embodiment, when the second type message is sent to the first interface, service description information or description information of data traffic associated with the second type message is also sent to the first interface at the same time.

Optionally, the second protocol includes at least one of: generalized Precision Time Protocol (gPTP), Precision Time Protocol (PTP), Network clock Protocol (NTP);

and/or

The second type of message comprises at least one of: related messages of the gPTP, related messages of the PTP, related messages of the NTP.

In one embodiment, the selecting the master clock for the terminal may be selecting a 5G master clock or a 6G master clock for the terminal, or a master clock of another wireless communication network.

Optionally, the rejecting the request for requesting the first synchronization may be rejecting a request for the first synchronization sent by at least one of: AF, terminal, RAN network element, or core network element. At this time, the first communication device may be the NEF.

In one embodiment, the first data flow may be a first service or a first data flow of the terminal, and the first service or the first data flow may be a service currently used by the terminal.

Optionally, the rejecting the request for requesting the first synchronization may be rejecting the first QoS guarantee for the first service or the first data traffic sent by at least one of: AF, terminal, RAN network element, or core network element. At this time, the first communication device may be the NEF.

In one embodiment, the rejecting the first QoS guarantee for the first data flow may include one of: and giving up QoS guarantee to the first data flow, and adopting other QoS guarantees to the first data flow. In one embodiment, the first synchronization may be that the terminal synchronizes with a master clock external to the first network, and/or that the terminal synchronizes with the master clock external to the first network based on the second protocol.

In one embodiment, the first synchronization may be that the first network synchronizes with a master clock external to the first network, and/or that the first network synchronizes with the master clock external to the first network based on the second protocol.

In one embodiment, the first synchronization may be that the terminal synchronizes with a master clock external to the first network, and the first network synchronizes with the master clock external to the first network; and/or the terminal synchronizes with a master clock outside the first network based on the second protocol, and the first network synchronizes with the master clock outside the first network based on the second protocol.

In one embodiment, the first synchronization may be based on reference time information, such as: synchronizing based on at least one of:

a reference time comprising a reference time of a first time precision;

precision (or granularity) of a reference time (e.g., 1ns, 10ns, 1us, 1ms, 10ms, or 1 s);

time domain information of a reference time;

description information of data traffic applicable with reference to time;

time accuracy of the reference time;

the synchronization period of the reference time.

In one embodiment, the first synchronization may be a time synchronization with a first time precision, wherein the first time precision includes one of: 1 nanosecond, 10 nanoseconds, 100 nanoseconds, 1 microsecond, 10 microseconds, 100 microseconds, 1 millisecond, 10 milliseconds, 100 milliseconds, 1 second.

In one embodiment, the master clock external to the first network may be one of: the master clock of the data network, the master clock provided by the AF.

In one embodiment, the second data channel comprises a QoS flow; the first data channel includes at least one of: PDU session, QoS flow.

In one embodiment, the second data channel is the same or different from the first data channel.

In one embodiment, the first QoS guarantee requires a first synchronization. In another embodiment, the first QoS guarantee does not require first synchronization.

Optionally, the not sending the first type message to the terminal includes:

skipping the step of sending the first type message to the terminal or discarding the first type message ready to be sent to the terminal.

In one embodiment, the step of skipping the first type message to be sent to the terminal may be a step of configuring the first type message to be sent to the terminal in some scenarios, and skipping the step when the first operation is performed.

In one embodiment, discarding the first type message to be sent to the terminal may be skipping the first type message to be sent to the terminal in some scenarios when performing the first operation.

Optionally, in the case that the first condition is satisfied, the first operation includes at least one of:

only sending the first type message and/or the second type message to the first interface, and not sending the first type message and/or the second type message to the terminal;

wherein the first condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the device side time sensitive network adapter DS-TT;

the context of a first data channel of the terminal indicates that the terminal is a termination point of a first service or a first data flow;

the terminal does not support DS-TT;

the first communication equipment is responsible for determining a port state or a port state configured on the first communication equipment;

the terminal does not support a first type of message;

the terminal does not support selecting a master clock or does not support a first protocol, wherein the first protocol is a protocol for selecting the master clock;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

determining a master clock of a first service or a first data flow as a master clock of a first network;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization based on the reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic does not need to perform first synchronization;

the first QoS guarantee does not require first synchronization;

the characteristics of the first service or the first data traffic do not comprise time-related parameters.

Wherein the first data channel is to communicate at least one of: data of a first service or a first data flow, a first type message related to the first service or the first data flow, and a second type message related to the first service or the first data flow.

In one embodiment, the first operation includes at least one of the following if an eleventh condition is also satisfied when the following tenth condition is satisfied: only sending first type messages and/or second type messages to a first interface, and not sending the first type messages and/or the second type messages to a terminal;

the tenth condition includes at least one of:

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

the characteristics of the first service or the first data traffic comprise time-dependent parameters.

The eleventh condition includes at least one of:

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

a master clock of the first traffic or the first data traffic is determined to be a master clock of the first network.

In one embodiment, the first data traffic is data traffic of a first service or first data traffic.

In one embodiment, the time-related parameter includes at least one of: packet arrival time, inter-packet gap period.

In one embodiment, the port is a port of a first bridge; the port state is a port state of the first bridge.

In one embodiment, the first bridge comprises one of:

a bridge of a first network;

a bridge formed by the first network and the terminal DS-TT;

wherein the first network may or may not include an NW-TT.

In one embodiment, the port of the first bridge may include at least one of the following in the case where the first network constitutes the first bridge: the first interface, the UU interface. When the first network constitutes a first bridge, the terminal (e.g. an application or application client on the terminal) is the termination point.

In one embodiment, in the case of a bridge formed by the first network and the terminal, DS-TT, the port of the first bridge may comprise at least one of: the first interface, a port on the DS-TT. In this case, the terminal is not a traffic termination point and the terminal is connected to the DS-TT, in one embodiment. The communication device connected after the DS-TT is the termination point (as shown in fig. 1). In another embodiment, the terminal is a service termination point. The terminal is co-located with the DS-TT and applications on the terminal can communicate with the DS-TT on the terminal (as shown in fig. 1).

In one embodiment, the first type message is not sent to the terminal when the following conditions are met, the conditions including at least one of: the terminal does not support the first type message; the terminal does not support a first protocol, which is a protocol for selecting a master clock.

In one embodiment, the second type message is not sent to the terminal when the following conditions are met, the conditions including at least one of: the terminal supports time synchronization based on a second protocol; the terminal supports time synchronization based on a second protocol.

In one embodiment, the second type message is not sent to the terminal when the following conditions are met, wherein the conditions include at least one of the following: the terminal does not support the first type message; the terminal does not support a first protocol, which is a protocol for selecting a master clock.

It will be appreciated that in one embodiment, even if the terminal supports the second type of message and/or the second protocol, the second type of message sent to the terminal is not valid in the event that the selected master clock is not supported.

In one embodiment, the first network selects the master clock instead of the terminal, and therefore can send the second type of message synchronization to the terminal even if the terminal does not support selecting the master clock.

Optionally, the indicating, by the context of the first data channel of the terminal, that the terminal is a termination point of the first service or the first data traffic includes:

the context of the first data channel may indicate that the terminal is a termination point of a first service or a first data traffic without including at least one of:

the residence time (UE-DS-TT reliability time) between the terminal and the DS-TT, and the MAC address of the DS-TT port.

In one embodiment, the dwell time between the terminal and the DS-TT may be the link overhead time of the terminal and the DS-TT.

In one embodiment, the first communications device may determine that the terminal is a termination point for the first traffic or first data traffic when the context of the first data lane does not include at least one of a residence time between the terminal and the DS-TT and a MAC address of a DS-TT port.

Optionally, the performing the first operation includes:

selecting a master clock for the terminal if a second condition is satisfied;

wherein the second condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the first communication equipment is responsible for determining the port state or the port state configured on the first communication equipment; the terminal does not support a first type of message;

the terminal supports obtaining reference time information;

the terminal supports time synchronization based on the reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

the characteristics of the first service or the first data flow comprise time-related parameters;

wherein the first data channel is to communicate at least one of: data of the first service or the first data traffic, a first type message related to the first service or the first data traffic, a second type message related to the first service or the first data traffic.

In one embodiment, the terminal does not support selecting the master clock may be that the terminal does not support autonomously selecting the master clock.

In one embodiment, the terminal not supporting the first protocol may be that the terminal does not use the first protocol for selecting the master clock.

Optionally, the performing the first operation includes:

in the case where the third condition is satisfied, performing at least one of: denying the request for requesting the first synchronization; refusing to perform first QoS guarantee on the first data flow;

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the context of the first data channel of the terminal indicates that the terminal is a termination point of a first service or a first data flow;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

determining a master clock of the terminal as a master clock outside the first network;

determining that synchronization with a master clock outside the first network is required based on a second protocol or determining that a second type message is to be sent to the terminal for synchronization with the master clock outside the first network;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

In one embodiment, the determination that the first communication device needs to synchronize with the master clock external to the first network based on the second protocol may be a determination that the first communication device needs to synchronize with the master clock external to the first network based on the second protocol.

In one embodiment, the determining that the second type message is to be sent to the terminal to synchronize with a master clock external to the first network may be determining that the first communication device is to send the second type message to the terminal to synchronize with a master clock external to the first network.

In one embodiment, the terminal can perform time synchronization based on the second protocol only when at least one of the following is supported: supporting to obtain reference time information; supporting time synchronization based on reference time information; time synchronization of a first time accuracy is supported.

Optionally, the performing the first operation includes:

executing the first operation under the condition that first information is acquired, wherein the first information comprises at least one of the following items: the MAC address of the terminal or the IP address of the terminal; the residence time of the terminal; first indication information; fourth indication information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

the first traffic or first data traffic requires or does not require synchronization of the terminal with the master clock of the first network.

In one embodiment, one or more of the first information may be obtained from one or more first targets, such as: acquiring one or more items in the first information (such as the MAC address of the terminal or the IP address of the terminal; the residence time of the terminal; first indication information) in a PDU session request or a PDU session modification request initiated by the terminal; or one or more items of the first information (e.g., fourth indication information) are obtained from the AF. The first target includes at least one of: a terminal, a RAN network element, an AF, or an entity outside the network.

In one embodiment, the first information may be obtained from a terminal.

In another embodiment, at least one of the following may be obtained from the RAN: the terminal supports or does not support obtaining reference time information; the terminal supports or does not support time synchronization based on the reference time information; the terminal supports or does not support time synchronization of a first time precision.

In another embodiment, the fourth indication may be obtained from an entity external to the network or from the AF.

In another embodiment, it may be confirmed that the time-related parameter is included or not included in the feature of the first service or the first data traffic from the feature of the first service or the first data traffic sent by an entity outside the network or the AF.

Optionally, in the case that the first information is obtained, the executing the first operation includes:

the method comprises the steps of executing a first operation when first information is acquired and a first condition is met, wherein the first condition comprises at least one of the following items:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the first communication equipment is responsible for determining a port state or configuring the port state on the first communication equipment;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of a first time precision;

the first QoS guarantee does not require first synchronization;

the characteristics of the first service or the first data traffic do not include time-related parameters.

In one embodiment, the first operation is executed only when the first information is acquired and the first condition is satisfied.

In an embodiment, the first condition refers to a corresponding description in the above embodiment, which is not described herein again.

Optionally, in the case that the first information is obtained, executing the first operation includes:

the method comprises the steps of selecting a master clock for a terminal under the condition that first information is acquired and a second condition is met, wherein the second condition comprises at least one of the following items:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

In one embodiment, the first operation is executed only when the first information is acquired and the second condition is satisfied.

In an embodiment, the second condition refers to a corresponding description in the above embodiment, which is not repeated herein.

when the first information is acquired and a third condition is met, executing at least one of the following steps: denying the request for requesting the first synchronization; refusing to perform the first QoS guarantee on the first data flow;

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the first communication equipment is responsible for determining the port state or the port state configured on the first communication equipment;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

In one embodiment, the first operation is executed only when the first information is acquired and the third condition is satisfied.

In an embodiment, the third condition refers to the corresponding description in the above embodiment, and is not described herein again.

In the embodiment of the present application, since the first operation is performed, the management effect of the master clock can be improved. For example: the first operation can avoid sending the first type message and/or the second type message to the terminal so as to save resource overhead; another example is: the first operation may reject the first synchronization to improve the time synchronization effect of the terminal. Another example is: the master clock can be accurately selected for the terminal through the first operation to improve the time synchronization effect of the terminal.

Referring to fig. 3, an embodiment of the present invention further provides an information transmission method, where the second communication device may be at least one of the following: a terminal, an AF, or an entity outside the network, a core network element (e.g., AMF, SMF, NEF, PCF), a RAN network element. The method comprises the following steps:

step 301, performing a second operation, wherein the second operation includes at least one of:

sending first information;

skipping or discarding the transmission of the second information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

Optionally, the second communication device comprises at least one of: the AF, entity outside the network, NEF, PCF, SMF, the first information may comprise at least one of:

the first QoS guarantee may or may not require first synchronization;

the characteristics of the first service or the first data traffic may or may not comprise time-related parameters.

Optionally, when the second communication device comprises at least one of: the first information may include at least one of the following:

the MAC address of the terminal or the IP address of the terminal;

the residence time of the terminal;

first indication information indicating at least one of:

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal may or may not support acquiring reference time information.

In one embodiment, the sending the first information may be that the terminal sends the first information. For example: the terminal may transmit the first information in a PDU session setup request or a PDU session modification request.

In another embodiment, the sending the first information may be that the RAN network element sends at least one of the following: the terminal supports or does not support obtaining reference time information; the terminal supports or does not support time synchronization based on the reference time information; the terminal may or may not support time synchronization of a first time accuracy.

In another embodiment, an entity external to the network or the AF sends the fourth indication information.

In another embodiment, it may be confirmed from the characteristics of the first service or the first data traffic sent by an entity outside the network or the AF that the characteristics of the first service or the first data traffic contain or do not contain the time-related parameter

In one embodiment, skipping or discarding transmission of the second information may be skipping or discarding transmission of the second information in transmitting a PDU session setup request or a PDU session modification request.

In one embodiment, the second information includes at least one of: the residence time between the terminal and the DS-TT and the MAC address of the DS-TT port.

In one embodiment, in the case of a bridge formed by the first network and the terminal, DS-TT, the port of the first bridge may comprise at least one of: the first interface, a port on the DS-TT. At this point, in one embodiment, the terminal is not a service termination point and the terminal is connected to the DS-TT. The communication device connected after the DS-TT is the termination point (as shown in fig. 1). In another embodiment, the terminal is a service termination point. The terminal is co-located with the DS-TT and applications on the terminal can communicate with the DS-TT on the terminal (as shown in fig. 1).

In one embodiment, the first information is transmitted when the following conditions are met, the conditions including at least one of: the terminal does not support the first type message; the terminal does not support a first protocol, which is a protocol for selecting a master clock.

In one embodiment, the first information is transmitted when the following conditions are met, the conditions including at least one of: the terminal supports time synchronization based on a second protocol; the terminal supports time synchronization based on a second protocol.

Optionally, the performing the second operation includes:

performing the second operation if a fourth condition is satisfied, wherein the fourth condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or the terminal does not support the DS-TT;

acquiring first request information, wherein the first request information is used for requesting a second operation;

the first service is a time-sensitive communication service;

the first data traffic is data traffic of time sensitive communication;

wherein the first data channel is configured to communicate at least one of: data of the first service or the first data traffic, a first type message related to the first service or the first data traffic, a second type message related to the first service or the first data traffic.

Optionally, the context of the first data channel may indicate that the terminal is a termination point of the first service or the first data traffic, without including at least one of:

the residence time between the terminal and the DS-TT and the media access control MAC address of the DS-TT port.

Optionally, the sending the first information includes:

sending the first information through related signaling of a data channel; or

And sending the first information through related signaling of a first data channel.

In one embodiment, the data channel is used for data transmission.

In one embodiment, the first data channel includes at least one of: PDU session, QoS flow.

In this embodiment, since the second operation is performed, the first communication device may be caused to perform the first operation of the embodiment shown in fig. 2 based on the first information or the second information skipped or discarded by the second communication device, thereby improving the management effect of the master clock.

Referring to fig. 4, an embodiment of the present invention further provides an information transmission method, which is executed by a third communication device. The third communication device may be a terminal, the method comprising:

step 401, receiving at least one of a first type message and a second type message, wherein the first type message is used for sending related information of a clock, and the second type message is related information of a time synchronization protocol;

step 402, executing a third operation according to at least one of the first type message and the second type message, wherein the third operation comprises at least one of the following operations:

discarding or ignoring the received first type of message;

discarding or ignoring the received second type message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

operating the received second type message;

In an embodiment, the receiving at least one of the first type message and the second type message may be receiving at least one of the first type message and the second type message sent by a core network element or a RAN network element.

In one embodiment, discarding or ignoring the received first type message may be determining the master clock without reference to the first type message, such as determining the optimal master clock without reference to the first type message.

In one embodiment, discarding or ignoring the received second type of message may be time synchronization without relying on the second type of message.

Optionally, the step of operating on the received second type message includes at least one of:

deleting the entry timestamp added by the first network contained in the suffix field in the received second type message;

converting a first residence time based on a master clock of a first network to a first residence time based on a second master clock;

adding a first dwell time based on a second master clock to a dwell time of a correction field in a second type message;

wherein the content of the first and second substances,

the first residence time is the time required for the transmission of the second type of message in the first network or the first bridge;

the second master clock is a corresponding master clock in the second type of message.

In one embodiment, the entry timestamp may be for a Timestamp (TS) i representation, i.e., TSi.

In one embodiment, the first bridge may be a time sensitive network bridge.

Optionally, the performing time synchronization according to the second type of message includes:

creating an exit timestamp according to the time when the second type message is received;

calculating a first residence time according to an exit timestamp or a time difference between the time of receiving the second type message and an entry timestamp in the second type message;

performing time synchronization with a second master clock, wherein the second master clock is a corresponding master clock in the second type message;

wherein the first residence time is the time required for the transmission of the second type of message in the first network or the first bridge.

In one embodiment, the first residence time may be calculated according to a time difference between the exit timestamp and the entry timestamp in the second type message, or may be calculated according to a time difference between the time when the second type message is received and the entry timestamp in the second type message.

Optionally, the discarding or ignoring the received first type message includes:

discarding or ignoring the received first type message if a fifth condition is met, wherein the fifth condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or the terminal does not support the DS-TT function;

the terminal does not support the first protocol and/or does not support the first type message;

receiving the first type message from a first data channel or control plane signaling;

the first type message is a first type message related to a first service or a first data flow.

In one embodiment, the terminal is a termination point of the first service or the first data traffic, and the context of the first data channel including the terminal indicates that the terminal is a termination point of the first service or the first data traffic, for example: the context of the first data channel indicates the terminal as a termination point for the first service or the first data traffic without including at least one of:

the residence time between the terminal and the DS-TT and the MAC address of the DS-TT port.

Optionally, the discarding or ignoring the received second type message includes:

discarding or ignoring the received first type message if a sixth condition is met, wherein the sixth condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal does not support the DS-TT function;

the terminal does not support time synchronization based on a second protocol and/or does not support a second type of message;

receiving the second type message from a first data channel or control plane signaling;

the second type message is a second type message related to the first service or the first data flow;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

the characteristics of the first service or the first data flow do not contain time-related parameters;

wherein the content of the first and second substances,

the second data channel is a data channel carrying data of either the first service or the first data traffic.

In one embodiment, the second data channel includes a QoS flow; the first data channel includes at least one of: PDU session, QoS flow.

In one embodiment, the DS-TT functionality includes support for synchronization based on a second protocol. Thus, in the case where the DS-TT functionality is not supported, synchronization based on the second protocol is implicitly not supported.

Optionally, the selecting a master clock according to the first type message includes:

selecting a master clock according to the first type message if a seventh condition is satisfied, wherein the seventh condition includes at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or the terminal supports the DS-TT function;

the terminal supports a first protocol and/or supports a first type of message;

the first type message is a first type message related to a first service or a first data flow;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

In one embodiment, the first protocol includes a protocol for optimal clock selection.

In one embodiment, the third operation includes at least one of the following if the eleventh condition is also satisfied when the tenth condition is satisfied: said discarding or ignoring the received second type message;

the tenth condition includes at least one of:

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

The eleventh condition includes at least one of:

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

Optionally, in a case that an eighth condition is satisfied, the third operation includes: at least one of time synchronizing and skipping a third operation according to the second type of message, wherein the eighth condition includes at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or supports the DS-TT function;

the terminal supports synchronization based on a second protocol;

the destination node receives the second type message from the first data channel or the control plane signaling;

the second type message is a second type message related to the first service or the first data flow.

In the embodiment of the present application, the management effect of time synchronization can be improved by executing the third operation.

Referring to fig. 5, an embodiment of the present invention further provides an information transmission method, which is executed by a fourth communication device. The fourth communication device includes but is not limited to: a RAN network element, a core network element (one of the following in the first network: NW-TT, SMF, UPF, PCF, NEF, AF), the method comprising:

step 501, executing a fourth operation, where the fourth operation includes:

wherein the content of the first and second substances,

In one embodiment, the reference time information is obtained from the RAN.

In one embodiment, the fourth information is sent to the terminal.

In one embodiment, the first temporal precision comprises one of: 1 nanosecond, 10 nanoseconds, 100 nanoseconds, 1 microsecond, 10 microseconds, 100 microseconds, 1 millisecond, 10 milliseconds, 100 milliseconds, 1 second.

In an embodiment, the second indication information is used to instruct the terminal to perform time synchronization with the RAN with a first time precision, or instruct the terminal to perform time synchronization with the RAN.

In an embodiment, the RAN is a RAN node currently accessed by the terminal or a cell under the RAN node.

In one embodiment, the time synchronization of the first time precision includes a master time synchronization with the first network.

In an embodiment, the terminal residence time is a terminal residence time related to the first service or the first data traffic. It will be appreciated that the terminal residence time may be the same or different for different first services or first data flows.

Optionally, the acquiring, by the terminal, the reference time information includes at least one of:

the terminal sends the terminal trend configured reference time information to a network or the terminal requests the network to configure the reference time information for the terminal;

the terminal reads a system message including reference time information;

and the terminal carries out time synchronization based on the acquired reference time information.

Optionally, the synchronization period includes at least one of: the terminal and the RAN perform a period of time synchronization with first time precision, the period that the terminal tends to be configured with reference time information is sent to the network, and the terminal requests the network to configure the period of the reference time information for the terminal.

Optionally, the time domain information includes at least one of: and the terminal and the RAN perform time synchronization of the time domain to which the synchronous clock with the first time precision belongs, and the reference time information or the time domain to which the reference time belongs.

Optionally, the service description information is used to indicate one of the following: and the service of the reference time information or the reference time is applied, and the service of synchronization is carried out based on the reference time information.

Optionally, the description information of the data traffic is used to indicate one of the following: and applying the reference time information or the data traffic of the reference time, and carrying out synchronous data traffic based on the reference time information.

Optionally, the description information of the data traffic includes description information of an application, and the description information of the application is used to indicate one of the following: and the application of the reference time information or the reference time is applied, and the application of synchronization is carried out based on the reference time information.

Optionally, the executing the fourth operation includes:

performing the fourth operation if a ninth condition is satisfied, wherein the ninth condition includes at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal and the DS-TT are combined or do not support the DS-TT;

determining to adopt a clock of a first network as a master clock;

determining that a first service or a first data flow of the terminal requires time synchronization of a first time precision;

determining that a first service or a first data flow of the terminal needs to be time-synchronized based on time reference information;

determining that the first data traffic or the second data channel needs to be guaranteed according to the time-sensitive communication auxiliary information;

the time-sensitive communication assistance information comprises a time-dependent parameter;

determining the time delay of a first network or a first network bridge needing to be exposed to the outside;

determining that the second data channel needing the terminal residence time is the first data traffic or the first data traffic of the data channel for transmitting the first data traffic.

In one embodiment, the first data traffic may be data of a first service or a first data traffic.

In one embodiment, the second data channel includes a QoS flow.

In one embodiment, the second data channel may be the same or different from the first data channel.

Optionally, the time-related parameter includes at least one of:

packet arrival time:

inter-packet gap period.

In one embodiment, when the terminal establishes a data channel (PDU session or QoS flow) for the first service or first data traffic in the first network, the AF has not yet requested a delay of the first bridge to the first service or first data traffic. The first network may thus send the second indication information to the terminal upon request of the AF. The first network may generate a delay for the first bridge based on the terminal residence time.

In the embodiment of the present application, performing the fourth operation advantageously improves a time synchronization effect or a time synchronization management effect of the terminal.

Referring to fig. 6, an embodiment of the present invention further provides an information transmission method, which is executed by a fifth communication device. The fifth communication device may be at least one of: a terminal, a RAN network element, an AF, or an entity external to the network. The method comprises the following steps:

step 601, obtaining fourth information, wherein the fourth information comprises at least one of the following items: second indication information and/or third indication information, a synchronization period, information of a time domain, service description information, description information of data flow, and first time precision;

step 602, executing a fifth operation according to the fourth information, wherein the fifth operation includes:

the reference time information is obtained and used as reference time information,

time synchronization with the RAN with a first time accuracy;

and transmitting the terminal residence time.

the third indication information is used for requesting the residence time of the terminal;

in one embodiment, at least one of the synchronization period, the time domain information, the service description information, the data traffic description information, and the first time precision may be used to filter the reference time information.

Optionally, the obtaining reference time information includes at least one of:

sending a notification that the terminal tends to be configured with reference time information or sending a request for configuring reference time information for the terminal;

reading a system message including reference time information;

performing time synchronization based on the acquired reference time information;

the sending of the notification that the terminal tends to be configured with the reference time information or the sending of the request for configuring the reference time information for the terminal includes sending the notification that the terminal tends to be configured with the reference time information or the sending of the request for configuring the reference time information for the terminal to a RAN network element.

Optionally, the sending the notification that the terminal tends to be configured with the reference time information or sending the request for configuring the reference time information for the terminal includes: filtering information of the reference time information, wherein the filtering information is used for screening the reference time information which accords with the filtering information;

wherein

The screening condition of the reference time information is at least one of the following: the method comprises the steps of synchronization period, time domain information, service description information, data flow description information and first time precision.

Optionally, the service description information is used to indicate one of the following: and applying the service of the reference time information or the reference time, and carrying out synchronous service based on the reference time information.

Optionally, the obtaining the fourth information includes one of: the fourth information is obtained from a layer above an Access Stratum (AS) layer of the fifth communication device, the fourth information is obtained from a Non-Access Stratum (NAS) layer of the fifth communication device, and the fourth information is obtained from NAS signaling of the network.

In one embodiment, the at least one item of fourth information may be acquired from a layer above an AS layer of the fifth communication device, the at least one item of fourth information may be acquired from a layer above a NAS layer of the fifth communication device, and the at least one item of fourth information may be acquired from NAS signaling of the network.

In the embodiment of the present application, performing the fifth operation advantageously improves a time synchronization effect or a time synchronization management effect of the terminal.

Referring to fig. 7, an embodiment of the present invention further provides an information transmission method, which is executed by a sixth communication device. The sixth communication device may be at least one of: a RAN network element; alternatively, the sixth communication device comprises at least one of: a terminal, a core network element, an AF, or an entity outside the network. The method comprises the following steps:

step 701, executing a sixth operation, where the sixth operation includes one of:

Optionally, the description information of the data traffic is used to indicate that the reference time information is applicable to the data traffic;

and/or

The service description information is used for indicating that the reference time information is applicable to the service.

Optionally, before the sixth operation is performed, the method further includes:

acquiring sixth information, wherein the sixth information comprises at least one of the following items: first description information, reference time information associated with the first description information; and the reference time information associated with the first description information contains the first description information or does not contain the first description information.

In accordance with the sixth message, performing one of:

sending the reference time information and the description information of the data traffic;

adding description information of data flow in the reference time information, and sending the modified reference time information;

and sending the reference time information, wherein the reference time information comprises description information of data traffic.

acquiring a notification that the terminal tends to be configured with the reference time information or a request for configuring the reference time information for the terminal;

and executing a sixth operation according to the acquired information.

Optionally, the notification that the terminal tends to be configured with the reference time information or the request for configuring the reference time information for the terminal includes filtering information of the reference time information, and the filtering information is used for filtering the reference time information meeting the filtering information;

wherein

Optionally, the description information of the reference time information and the data traffic is sent through an RRC message, or

And sending reference time information through an RRC message, wherein the reference time information comprises description information of data traffic.

In one embodiment, the RRC message includes at least one of: system messages, terminal related RRC messages. The system message may be a protocol-defined SIB 9.

In the embodiment of the present application, the time synchronization management effect is advantageously improved by performing the sixth operation.

The following illustrates an information transmission method provided in the embodiments of the present application by using a plurality of embodiments:

example 1:

this embodiment is shown in fig. 8 and comprises the following steps:

step 801, the terminal executes the second operation, which may be specifically as described in the embodiment of fig. 3. The terminal sends a NAS message, which may include a PDU session setup request or a PDU session modify request. One or more items of the first information may be included in the signaling related to the NAS message or the PDU session, and may include, for example, at least one of the following:

the MAC address of the terminal;

terminal residence time (UE residence time);

first indication information;

in a case that the NAS message does not include at least one of the following, the terminal can be indicated as a termination point of the first service or the first data traffic:

residence time between the terminal and the DS-TT, and Media Access Control (MAC) address of the DS-TT port

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal may or may not support time synchronization based on a second protocol.

Step 802, the AMF sends an update session management context request for the PDU session to the SMF.

Step 803, SMF sends session modification request to UPF/NW-TT.

Optionally, the session modifying request comprises the first information.

Step 804, UPF/NW-TT sends session modification response to SMF.

The UPF/NW-TT performs a first operation, as described in the embodiment of FIG. 2.

Or, the UPF/NW-TT performs the first operation according to the received first information, as described in the embodiment of fig. 2.

Step 805, the SMF triggers a session management policy association modification request to the PCF.

Step 806, the PCF sends an event notification to the AF to notify the port related information container.

Step 807, the AF returns an event notification response to the PCF.

Step 808, the PCF sends a session management policy association modification response to the SMF.

Step 809, SMF sends update session context response of PDU session to AMF.

Step 810, the AMF sends a NAS message to the terminal, the NAS message including a PDU session resource modification accept.

Example 2:

this embodiment is shown in fig. 9 and comprises the following steps:

step 901 the AF sends a session creation request to the NEF, the request comprising one or more items of time sensitive communication feature information and/or first information. Illustratively, the first information is, for example, fourth indication information.

Step 902, NEF sends a policy authorization creation request to PCF, the request including a bridge container. In one embodiment, the request includes first information; in another embodiment, the bridge container contains first information.

Step 903, PCF sends a session management policy modification request to SMF. Optionally, the request includes the first information.

Step 904, the SMF sends a session modification request to the UPF/NW-TT. Optionally, the request includes the first information. In one embodiment, the first information sent by the SMF includes first information received from the AMF and/or received by the PCF.

Step 905, generating a first type message by the UPF/NW-TT, wherein, according to the terminal being the termination point, the following operations are further executed:

a notification message is not sent to the terminal, and only the first type message is sent to the NW-TT port (as described in the embodiment of fig. 2, which is not described herein again); or

The notification message is still sent to the terminal, but the terminal as the terminating point ignores or discards the received first type message (as described in the embodiment of fig. 4, which is not described herein again).

Step 906, UPF/NW-TT sends session modification response to SMF.

Step 907, the SMF sends a session management policy association modification response to the PCF.

Step 908, the PCF sends a policy grant creation response to the NEF.

Step 909, NEF sends session creation response to AF.

Step 910, the SMF sends an updated session management context for PDU session to the AMF, which is used for 5G GM synchronization.

And step 911, the AMF sends NAS information to the terminal so as to carry out 5G GM synchronization.

Referring to fig. 10, an embodiment of the present invention provides a communication device, which is a first communication device, where the first communication device includes, but is not limited to, a terminal, a TT (e.g., one of DS-TT, NW-TT, first DS-TT, second DS-TT, first NW-TT, second NW-TT), a CN network element (e.g., one of SMF, UPF, PCF, NEF, AF), and a RAN network element, and as shown in fig. 10, the communication device 1000 includes:

an execution module 1001 configured to execute a first operation, wherein the first operation includes at least one of:

selecting a master clock for the terminal;

denying the request for requesting the first synchronization;

the first type message is used for sending related information of a clock;

Optionally, in case that the first condition is satisfied, the first operation includes at least one of:

only sending first type messages and/or second type messages to a first interface, and not sending the first type messages and/or the second type messages to a terminal;

wherein the first condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

Optionally, the performing the first operation includes:

selecting a master clock for the terminal if a second condition is satisfied;

wherein the second condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

Optionally, the performing the first operation includes:

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

Optionally, the performing the first operation includes:

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

the first service or first data traffic may or may not require the terminal to synchronize to a master clock of the first network.

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the first communication device is responsible for determining a port state or a port state configured on the first communication device;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

the characteristics of the first service or the first data traffic include time-related parameters.

Optionally, the not sending the first type message to the terminal includes:

and/or

Optionally, the second protocol includes at least one of: generalized precise clock protocol gPTP, precise clock protocol PTP, network clock protocol NTP;

and/or

The second type of message comprises at least one of: related messages of gPTP, related messages of PTP, related messages of NTP.

The communication device 1000 can implement each process implemented by the first communication device in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

Referring to fig. 11, another communication device according to an embodiment of the present invention is a second communication device, where the second communication device includes, but is not limited to, a terminal, a DS-TT, an NW-TT, a CN network element (such as one of SMF, UPF, PCF, NEF, AF), and a RAN network element, and as shown in fig. 11, the communication device 1100 includes:

an executing module 1101, configured to execute a second operation, where the second operation includes at least one of:

skipping or discarding the sending of the second information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

Wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

Optionally, the performing the second operation includes:

performing the second operation if a fourth condition is satisfied, wherein the fourth condition includes at least one of:

the terminal is a termination point of a first service or a first data flow;

the first service is a time-sensitive communication service;

the first data traffic is data traffic of time sensitive communication;

Optionally, the sending the first information includes:

sending the first information through related signaling of a data channel; or

The communication device 1100 can implement each process implemented by the second communication device in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

Referring to fig. 12, another communication device according to an embodiment of the present invention is a third communication device, where the third communication device includes, but is not limited to, a terminal, a DS-TT, an NW-TT, a CN network element (such as one of SMF, UPF, PCF, NEF, AF), and a RAN network element, and as shown in fig. 12, the communication device 1200 includes:

a receiving module 1201, configured to receive at least one of a first type message and a second type message, where the first type message is used to send information related to a clock, and the second type message is a related message of a time synchronization protocol;

an executing module 1202, configured to execute a third operation according to at least one of the first type message and the second type message, where the third operation includes at least one of:

discarding or ignoring the received first type of message;

discarding or ignoring the received second type of message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

skipping a class of operation of a third operation, wherein the class of operation of the third operation comprises at least one of:

operating the received second type message;

wherein the content of the first and second substances,

wherein the first residence time is a time required for transmission of the second type of message in the first network or the first bridge.

the terminal is a termination point of a first service or a first data flow;

the terminal does not support the first protocol and/or does not support the first type of messages;

the terminal is a termination point of a first service or a first data flow;

the terminal does not support the DS-TT function;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

wherein the content of the first and second substances,

Optionally, the selecting a master clock according to the first type of message includes:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or supports the DS-TT function;

the terminal supports a first protocol and/or supports a first type of message;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

Optionally, in a case that an eighth condition is satisfied, the third operation includes: at least one of time synchronizing and skipping a third operation according to the second type of message, wherein the eighth condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal supports synchronization based on a second protocol;

The communication device 1200 can implement each process implemented by the third communication device in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

Referring to fig. 13, an embodiment of the present invention provides another communication device, which is a fourth communication device, where the fourth communication device includes, but is not limited to, a terminal, a DS-TT, an NW-TT, a CN network element (such as one of SMF, UPF, PCF, NEF, AF), and a RAN network element, and as shown in fig. 14, a communication device 1300 includes:

an execution module 1301, configured to execute a fourth operation, where the fourth operation includes:

the terminal reads a system message including reference time information;

Optionally, the synchronization period includes at least one of: the method comprises the steps that a terminal and RAN perform time synchronization with first time precision, the period that the terminal tends to be configured with reference time information is sent to a network, and the terminal requests the network to configure the period of the reference time information for the terminal;

and/or

The time domain information includes at least one of: a time domain to which a synchronous clock for time synchronization of a first time precision between the terminal and the RAN belongs, the reference time information or the time domain to which the reference time belongs;

and/or

The service description information is used for indicating one of the following: the service of the reference time information or the reference time is applicable, and the service of synchronization is carried out based on the reference time information;

and/or

The description information of the data traffic is used for indicating one of the following: the data traffic of the reference time information or the reference time is applicable, and the data traffic is synchronized based on the reference time information;

and/or

The description information of the data traffic includes description information of an application, and the description information of the application is used for indicating one of the following: and the application of the reference time information or the reference time is applied, and the application of synchronization is carried out based on the reference time information.

Optionally, the executing the fourth operation includes:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or does not support the DS-TT;

determining to adopt a clock of a first network as a master clock;

determining the time delay of a first network or a first network bridge which needs to be disclosed to the outside;

the residence time between the terminal and the DS-TT, and the media access control MAC address of the DS-TT port.

Optionally, the time-related parameter includes at least one of:

packet arrival time:

inter-packet gap period.

The communication device 1300 can implement each process implemented by the fourth communication device in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

Referring to fig. 14, another communication device according to an embodiment of the present invention is a fifth communication device, where the fifth communication device includes, but is not limited to, a terminal, a DS-TT, an NW-TT, a CN network element (such as one of SMF, UPF, PCF, NEF, AF), and a RAN network element, and as shown in fig. 14, the communication device 1400 includes:

an obtaining module 1401, configured to obtain fourth information, where the fourth information includes at least one of the following: second indication information and/or third indication information, a synchronization period, information of a time domain, service description information, description information of data flow, and first time precision;

an executing module 1402, configured to execute a fifth operation according to the fourth information, where the fifth operation includes:

the reference time information is acquired and,

time synchronization with the RAN with a first time accuracy;

sending terminal residence time;

wherein the content of the first and second substances,

Optionally, the obtaining reference time information includes at least one of:

reading a system message including reference time information;

and performing time synchronization based on the acquired reference time information.

wherein the content of the first and second substances,

Optionally, the synchronization period includes at least one of: the terminal and the RAN perform a period of time synchronization of first time precision, send a period that the terminal tends to be configured with reference time information to a network, and request the network to configure the period of the reference time information for the terminal;

and/or

The description information of the data traffic is used for indicating one of the following: applying the reference time information or the data traffic of the reference time, and performing synchronous data traffic based on the reference time information;

and/or

Optionally, the obtaining the fourth information includes one of: and obtaining the fourth information from a layer above an AS layer of the access stratum of the fifth communication equipment, obtaining the fourth information from a NAS layer of a non-access stratum of the fifth communication equipment, and obtaining the fourth information from NAS signaling of a network.

The communication device 1400 can implement each process implemented by the fifth communication device in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

Referring to fig. 15, another communication device according to another embodiment of the present invention is a sixth communication device, where the sixth communication device includes, but is not limited to, a terminal, a DS-TT, an NW-TT, a CN network element (such as one of SMF, UPF, PCF, NEF, AF), and a RAN network element, and as shown in fig. 16, the communication device 1500 includes:

an execution module 1500 to perform a sixth operation comprising one of:

and/or

Optionally, the apparatus further comprises:

a first obtaining module, configured to obtain sixth information, where the sixth information includes at least one of: first description information, reference time information associated with the first description information; and the reference time information associated with the first description information contains the first description information or does not contain the first description information.

In accordance with the sixth message, performing one of:

Optionally, the apparatus further comprises:

the second acquisition module is used for acquiring a notification that the terminal tends to be configured with the reference time information or a request for configuring the reference time information for the terminal;

and executing a sixth operation according to the acquired information.

Optionally, the notification that the terminal tends to be configured with the reference time information or the request for configuring the reference time information for the terminal includes filtering information of the reference time information, which is used to filter the reference time information conforming to the filtering information;

wherein the screening condition of the reference time information is at least one of the following: the method comprises the steps of synchronization period, time domain information, service description information, data flow description information and first time precision.

Optionally, the reference time information and the description information of the data traffic are sent through an RRC message,

or

The communication device 500 can implement each process implemented by the sixth communication device in the method embodiment of the present invention, and achieve the same beneficial effects, and for avoiding repetition, details are not described here again.

Referring to fig. 16, fig. 16 is a block diagram of another communication device provided in an embodiment of the present invention. As shown in fig. 16, the communication device 1600 includes: memory 1601, processor 1602, and computer program 16011 stored on memory 1601 and operable on processor 1602.

Wherein, when the communication device 1600 is embodied as a first communication device in the above-described method embodiments, the computer program 16011, when executed by the processor 1602, implements the steps of:

selecting a master clock for the terminal;

denying the request for requesting the first synchronization;

wherein the content of the first and second substances,

the first type message is used for sending related information of a clock;

wherein the first condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic does not require a first synchronization;

the first QoS guarantee does not require first synchronization;

Optionally, the performing the first operation includes:

selecting a master clock for the terminal if a second condition is met;

wherein the second condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

Optionally, the performing the first operation includes:

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

Optionally, the performing the first operation includes:

executing the first operation under the condition that first information is acquired, wherein the first information comprises at least one of the following items: the MAC address of the terminal or the IP address of the terminal;

the residence time of the terminal; first indication information; fourth indication information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

when the first information is acquired and a third condition is met, executing at least one of the following steps: denying the request for requesting the first synchronization; refusing to perform first QoS guarantee on the first data flow;

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

Optionally, the not sending the first type message to the terminal includes:

and/or

and under the condition of sending the second type message, simultaneously sending service description information or description information of data traffic associated with the second type message.

and/or

Wherein, when the communication device 1600 is embodied as the second communication device in the above-described method embodiments, the computer program 16011, when executed by the processor 1602, implements the steps of:

sending first information;

skipping or discarding the sending of the second information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

Wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

Optionally, the performing the second operation includes:

the terminal is a termination point of a first service or a first data flow;

the first service is a time-sensitive communication service;

the first data traffic is data traffic of time sensitive communication;

Optionally, the sending the first information includes:

sending the first information through related signaling of a data channel; or alternatively

Wherein, when the communication device 1600 is embodied as the third communication device in the above-described method embodiments, the computer program 16011, when executed by the processor 1602, implements the steps of:

receiving at least one of a first type message and a second type message, wherein the first type message is used for sending related information of a clock, and the second type message is related to a time synchronization protocol;

discarding or ignoring the received first type of message;

discarding or ignoring the received second type of message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

operating the received second type message;

the terminal is a termination point of a first service or a first data flow;

the terminal does not support the DS-TT function;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of a first time precision;

the first QoS guarantee does not require first synchronization;

wherein the content of the first and second substances,

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or supports the DS-TT function;

the terminal supports a first protocol and/or supports a first type of message;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

the terminal is a termination point of a first service or a first data flow;

the terminal supports synchronization based on a second protocol;

Wherein, when the communication device 1600 is embodied as the fourth communication device in the above-mentioned method embodiments, the computer program 16011, when executed by the processor 1602, implements the steps of:

performing a fourth operation, the fourth operation comprising:

wherein the content of the first and second substances,

the terminal reads a system message including reference time information;

and/or

Optionally, the executing the fourth operation includes:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or does not support the DS-TT;

determining to adopt a clock of a first network as a master clock;

Optionally, the time-related parameter includes at least one of:

packet arrival time:

inter-packet gap period.

Wherein, when the communication device 1600 is embodied as the fifth communication device in the above-described method embodiments, the computer program 16011, when executed by the processor 1602, implements the steps of:

time synchronization with the RAN with a first time accuracy;

sending terminal residence time;

wherein the content of the first and second substances,

Optionally, the obtaining reference time information includes at least one of:

reading a system message including reference time information;

wherein the content of the first and second substances,

and/or

Wherein, when the communication device 1600 is embodied as the sixth communication device in the above-described method embodiments, the computer program 16011, when executed by the processor 1602, implements the steps of:

performing a sixth operation, the sixth operation comprising one of:

and/or

Optionally, before performing the sixth operation, the computer program 16011 when executed by the processor 1602 further implements the following steps:

acquiring sixth information, wherein the sixth information comprises at least one of the following: first description information, reference time information associated with the first description information; and the reference time information associated with the first description information contains the first description information or does not contain the first description information.

In accordance with the sixth message, performing one of:

and executing a sixth operation according to the acquired information.

wherein

The communication device 1600 can implement each process implemented by the communication device in the foregoing method embodiments, and for avoiding repetition, details are not described here again.

The embodiment of the application provides a communication device, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, the computer program when executed by the processor implements the steps of the information transmission method on the first communication device side provided in the embodiment of the present application, or, the steps of the information transmission method at the second communication device side provided in the embodiment of the present application are realized, or, the steps of the information transmission method on the third communication device side provided in the embodiment of the present application are realized, or, the steps of the information transmission method at the fourth communication device side provided in the embodiment of the present application are realized, or, the steps of the information transmission method at the fifth communication device side provided in the embodiment of the present application are implemented, or, the steps of the information transmission method on the sixth communication device side provided in the embodiment of the present application are implemented.

An embodiment of the present application provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements a step of an information transmission method on a first communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a second communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a third communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a fourth communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a fifth communication device side provided in the embodiment of the present application, or implements a step of an information transmission method on a sixth communication device side provided in the embodiment of the present application.

The embodiment of the present application further provides a program product stored in a non-volatile storage medium, where the program product is executed by at least one processor to implement the steps in the information transmission method on the first communication device side provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the information transmission method on the second communication device side provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the information transmission method on the third communication device side provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the information transmission method on the fourth communication device side provided in the embodiment of the present application, or the program product is executed by at least one processor to implement the steps in the information transmission method on the fifth communication device side provided in the embodiment of the present application, alternatively, the program product is executed by at least one processor to implement the steps in the information transmission method on the sixth communication device side provided in the embodiment of the present application.

The processor is the processor in the terminal or the network device in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is configured to execute a program or an instruction, implement each process of the information transmission method embodiment on the side of the first communication device, the second communication device, the third communication device, the fourth communication device, the fifth communication device, or the sixth communication device provided in the embodiment of the present application, and can achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An information transmission method performed by a first communication device, comprising:

selecting a master clock for the terminal;

rejecting a request for requesting a first synchronization;

wherein the content of the first and second substances,

the first type message is used for sending related information of a clock;

the first interface includes: an interface connected with a data network and a port on a network side time sensitive network adapter NW-TT;

2. The method of claim 1,

in the event that a first condition is satisfied, the first operation includes at least one of:

wherein the first condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with a device side time sensitive network adapter DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

3. The method of claim 1, wherein the performing the first operation comprises:

selecting a master clock for the terminal if a second condition is satisfied;

wherein the second condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

4. The method of claim 1, wherein the performing the first operation comprises:

in the case where the third condition is satisfied, performing at least one of: denying the request for requesting the first synchronization; refusing to perform the first QoS guarantee on the first data flow;

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

5. The method of claim 1, wherein the performing the first operation comprises:

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

6. The method of claim 5, wherein performing the first operation in the event first information is obtained comprises:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

7. The method of claim 5, wherein the performing the first operation in the case of obtaining the first information comprises:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

8. The method of claim 5, wherein the performing the first operation in the case of obtaining the first information comprises:

under the condition that the first information is acquired and a third condition is met, at least one of the following is executed: rejecting a request for requesting a first synchronization; refusing to perform first QoS guarantee on the first data flow;

wherein the third condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT;

the terminal does not support DS-TT;

the terminal does not support a first type of message;

the terminal does not support the second type message;

the terminal does not support time synchronization based on a second protocol;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

9. The method of claim 1, wherein the not sending the first type of message to the terminal comprises:

10. The method of claim 2, 3, 4, 6, 7 or 8, wherein the indicating by the context of the first data channel of the terminal that the terminal is a termination point for the first traffic or first data traffic comprises:

11. The method of claim 1,

the first type message comprises service description information or description information of data flow associated with the first type message;

and/or

12. The method of claim 1, wherein the second protocol comprises at least one of: generalized precise clock protocol gPTP, precise clock protocol PTP, network clock protocol NTP;

and/or

13. An information transmission method performed by a second communication device, comprising:

sending first information;

skipping or discarding the sending of the second information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

14. The method of claim 13, wherein the performing the second operation comprises:

the terminal is a termination point of a first service or a first data flow;

the first service is a time-sensitive communication service;

the first data traffic is data traffic of time sensitive communication;

15. The method of claim 14, wherein the context of the first data channel is capable of indicating the terminal as a termination point for a first service or a first data traffic without including at least one of:

16. The method of claim 13, wherein the sending the first information comprises:

sending the first information through related signaling of a data channel; or

17. An information transmission method executed by a third communication apparatus, comprising:

discarding or ignoring the received first type of message;

discarding or ignoring the received second type of message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

operating the received second type message;

18. The method of claim 17, wherein the step of operating on the received second type of message comprises at least one of:

wherein the content of the first and second substances,

19. The method of claim 17, wherein the time synchronizing according to the second type of message comprises:

20. The method of claim 17, wherein said discarding or ignoring the received first type of message comprises:

the terminal is a termination point of a first service or a first data flow;

21. The method of claim 17, wherein said discarding or ignoring the received second type of message comprises:

the terminal is a termination point of a first service or a first data flow;

the terminal does not support the DS-TT function;

the terminal does not support obtaining reference time information;

the terminal does not support time synchronization of first time precision;

the first QoS guarantee does not require first synchronization;

22. The method of claim 17, wherein said selecting a master clock based on said first type of message comprises:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or supports the DS-TT function;

the terminal supports a first protocol and/or supports a first type of message;

the terminal supports obtaining reference time information;

the terminal supports time synchronization of a first time precision;

the first service or the first data traffic needs to be synchronized first;

the first QoS guarantee requires a first synchronization;

23. The method of claim 17, wherein the third operation, if an eighth condition is satisfied, comprises: at least one of time synchronizing and skipping a third operation according to the second type of message, wherein the eighth condition comprises at least one of:

the terminal is a termination point of a first service or a first data flow;

the terminal is combined with the DS-TT or supports the DS-TT function;

the terminal supports synchronization based on a second protocol;

24. An information transmission method executed by a fourth communication device, comprising:

performing a fourth operation, the fourth operation comprising:

25. The method of claim 24, wherein the terminal acquiring the reference time information comprises at least one of:

the terminal reads a system message including reference time information;

26. The method of claim 24,

the synchronization period includes at least one of: the method comprises the steps that a terminal and RAN perform time synchronization with first time precision, the period that the terminal tends to be configured with reference time information is sent to a network, and the terminal requests the network to configure the period of the reference time information for the terminal;

and/or

27. The method of claim 24, wherein the performing the fourth operation comprises:

the terminal is a termination point of a first service or a first data flow;

the terminal and the DS-TT are combined or do not support the DS-TT;

determining to adopt a clock of a first network as a master clock;

determining that a first service or a first data traffic of the terminal needs to be time-synchronized based on time reference information;

determining that the first data flow or the second data channel needs to be guaranteed according to the time-sensitive communication auxiliary information;

28. The method of claim 27, wherein the context of the first data channel is capable of indicating the terminal as a termination point for a first service or a first data traffic without including at least one of:

29. The method of claim 27, wherein the time-related parameter comprises at least one of:

packet arrival time:

inter-packet gap period.

30. An information transmission method performed by a fifth communication device, comprising:

time synchronization with the RAN with a first time accuracy;

sending terminal residence time;

31. The method of claim 30, wherein the obtaining reference time information comprises at least one of:

sending a notification that the terminal tends to be configured with the reference time information or sending a request for configuring the reference time information for the terminal;

reading a system message including reference time information;

32. The method of claim 31,

the sending of the notification that the terminal tends to be configured with the reference time information or the sending of the request for configuring the reference time information for the terminal includes: filtering information of the reference time information, wherein the filtering information is used for screening the reference time information which accords with the filtering information;

33. The method of claim 30,

and/or

34. The method of claim 30,

the obtaining fourth information comprises one of: and obtaining the fourth information from a layer above an AS layer of the access stratum of the fifth communication equipment, obtaining the fourth information from a NAS layer of a non-access stratum of the fifth communication equipment, and obtaining the fourth information from NAS signaling of a network.

35. An information transmission method performed by a sixth communication device, comprising:

performing a sixth operation, the sixth operation comprising one of:

36. The method of claim 35,

the description information of the data traffic is used for indicating that the reference time information is applicable to the data traffic;

and/or

37. The method of claim 35, wherein prior to performing the sixth operation, the method further comprises:

In accordance with the sixth message, performing one of:

38. The method of claim 35, wherein prior to performing the sixth operation, the method further comprises:

acquiring a notification that the terminal tends to be configured with reference time information or a request for configuring the reference time information for the terminal;

and executing a sixth operation according to the acquired information.

39. The method of claim 38, wherein the notification that the terminal tends to be configured with the reference time information or the request for configuring the reference time information for the terminal includes filtering information of the reference time information for filtering the reference time information conforming to the filtering information;

wherein

40. The method of claim 35,

transmitting the reference time information and the description information of the data traffic through the RRC message,

or

41. A communication device, the communication device being a first communication device, comprising:

selecting a master clock for the terminal;

denying the request for requesting the first synchronization;

refusing to perform first quality of service (QoS) guarantee on a first service or a first data flow;

wherein the content of the first and second substances,

the first type message is used for sending related information of a clock;

42. A communication device, the communication device being a second communication device, comprising:

sending first information;

skipping or discarding the transmission of the second information;

wherein the first information comprises at least one of: the MAC address of the terminal or the IP address of the terminal; the residence time of the terminal; first indication information and fourth indication information;

the terminal is combined with the DS-TT;

the terminal supports or does not support the DS-TT function;

the terminal supports or does not support the first type message;

the terminal supports or does not support the second type message;

the terminal supports or does not support obtaining reference time information;

the first QoS guarantee may or may not require first synchronization;

wherein the second information comprises at least one of:

the terminal and DS-TT dwell time;

MAC address of DS-TT port.

43. A communication device, the communication device being a third communication device, comprising:

discarding or ignoring the received first type of message;

discarding or ignoring the received second type of message;

selecting a master clock according to the first type message;

performing time synchronization according to the second type message;

operating the received second type message;

44. A communication device, the communication device being a fourth communication device, comprising:

wherein the content of the first and second substances,

45. A communication device, the communication device being a fifth communication device, comprising:

an obtaining module, configured to obtain fourth information, where the fourth information includes at least one of the following: second indication information and/or third indication information, a synchronization period, information of a time domain, service description information, description information of data flow, and first time precision;

the reference time information is acquired and,

time synchronization with the RAN with a first time accuracy;

sending terminal residence time;

wherein the content of the first and second substances,

46. A communication device, which is a sixth communication device, comprising:

47. A communication device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the information transmission method as claimed in any one of claims 1 to 12, or implementing the steps of the information transmission method as claimed in any one of claims 13 to 16, or implementing the steps of the information transmission method as claimed in any one of claims 17 to 23, or implementing the steps of the information transmission method as claimed in any one of claims 24 to 29, or implementing the steps of the information transmission method as claimed in any one of claims 30 to 34, or implementing the steps of the information transmission method as claimed in any one of claims 35 to 40.

48. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the information transmission method according to any one of claims 1 to 12, or the steps of the information transmission method according to any one of claims 13 to 16, or the steps of the information transmission method according to any one of claims 17 to 23, or the steps of the information transmission method according to any one of claims 24 to 29, or the steps of the information transmission method according to any one of claims 30 to 34, or the steps of the information transmission method according to any one of claims 35 to 40.