CN112398627B

CN112398627B - Information transmission method, device, related equipment and storage medium

Info

Publication number: CN112398627B
Application number: CN201910769504.2A
Authority: CN
Inventors: 孙军帅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2023-01-10
Anticipated expiration: 2039-08-16
Also published as: CN112398627A

Abstract

The invention discloses an information transmission method, an information transmission device, a terminal, network equipment and a storage medium. The method comprises the following steps: a second Media Access Control (MAC) protocol entity of the terminal receives the first information from the network equipment; the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal; and/or the second protocol entity directly sends second information to the second MAC protocol entity; the second MAC protocol entity issues the second information using a media Access control element (MAC CE); wherein the second protocol entity is a protocol entity of a non-access stratum (NAS) layer; the first information and the second information are both time-sensitive information; the first information received by the second MAC protocol entity is carried by using the MAC CE.

Description

Information transmission method and device, related equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to an information transmission method, an information transmission apparatus, a related device, and a storage medium.

Background

In the related art, in the Industrial Internet (IIOT, industrial Internet of Things), an architecture that uses a Radio Access Network (RAN) as a transmission node of a whole Time Sensitive Network (TSN) is proposed. Under this architecture, the RAN needs to transmit information according to the TSN requirements.

Disclosure of Invention

In order to solve related technical problems, embodiments of the present invention provide an information transmission method, an information transmission apparatus, related devices, and a storage medium.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides an information transmission method, which is applied to a terminal and comprises the following steps:

a second Media Access Control (MAC) protocol entity of the terminal receives first information from a network device; the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal;

and/or the presence of a gas in the atmosphere,

the second protocol entity directly sends second information to the second MAC protocol entity; the second MAC protocol entity issues the second information using a media Access control element (MAC CE); wherein, the first and the second end of the pipe are connected with each other,

the second protocol entity is a protocol entity of a Non-Access Stratum (NAS) layer; the first information and the second information are both time-sensitive information; the first information received by the second MAC protocol entity is carried by using the MAC CE.

In the foregoing solution, the directly sending, by the second MAC protocol entity, the received first information to the second protocol entity of the terminal includes:

identifying the received first information as time-sensitive information;

and directly sending the received first information to a second protocol entity of the terminal.

In the above solution, the identifying that the received first information is time-sensitive information includes one of:

receiving first indication information; the first indication information indicates that the first information is time-sensitive information; according to the first indication information, identifying the received first information as time-sensitive information;

analyzing the received MAC Protocol Data Unit (PDU) to obtain a second MAC CE; the second MAC CE bears first information from network equipment; and identifying the first information as time-sensitive information according to the logical channel identifier of the second MAC CE.

In the foregoing solution, when the second MAC protocol entity directly sends the received first information to the second protocol entity of the terminal, the method further includes:

sending second indication information to the second protocol entity; the second indication information indicates that the first information is time-sensitive information.

In the foregoing solution, when the second protocol entity directly sends the second information to the second MAC protocol entity, the method further includes:

sending third indication information to the second MAC protocol entity; the third indication information indicates that the second information is time-sensitive information;

and the second MAC protocol entity generates the MAC CE based on the third indication information and the received second information.

The embodiment of the invention also provides an information transmission method, which is applied to network equipment and comprises the following steps:

a first protocol entity of the Network equipment directly sends received first information from a Core Network (CN) to a first MAC protocol entity of the Network equipment; the first MAC protocol entity sends out the first information by using a MAC CE;

and/or the presence of a gas in the gas,

the first MAC protocol entity directly sends the received second information from the terminal to the first protocol entity; the first protocol entity sends out the received second information; wherein, the first and the second end of the pipe are connected with each other,

the first protocol entity is an interface protocol entity between the CN and the network equipment; the first information and the second information are both time-sensitive information; and the second information received by the first MAC protocol entity is carried by using the MAC CE.

In the foregoing solution, the first Protocol entity is an Ng interface Application Protocol (Ng ap) Protocol entity of the network device, or is a GPRS tunneling Protocol user plane (GTP-U) Protocol entity of the network device.

In the above scheme, the method further comprises:

the first protocol entity identifies the first information from the CN as time-sensitive information.

In the above solution, the first protocol entity is an NgAP protocol entity of the network device; the first protocol entity identifies the first information from the CN as time-sensitive information, including one of:

identifying first information from the CN as time-sensitive information by utilizing Stream Control Transmission Protocol (SCTP) bearing established between the CN and the network equipment for the time-sensitive information;

acquiring the type of a data packet from the data packet corresponding to the first information; identifying first information from the CN as time-sensitive information by using the type of the acquired data packet;

and identifying the first information as time-sensitive information by using the configured relevant information aiming at the time-sensitive information.

In the above scheme, the first protocol entity is a GTP-U protocol entity of the network device; the first protocol entity identifies the first information from the CN as time-sensitive information, including one of:

recognizing the first information from the CN as time sensitive information by using a GTP-U bearer between the CN and the network equipment, which is established for the time sensitive information;

acquiring the type of a data packet from the data packet corresponding to the first information; the first information from the CN is identified as time sensitive information using the type of the acquired data packet.

In the foregoing solution, the obtaining the type of the data packet from the data packet corresponding to the first information includes:

and acquiring the type of the data packet from the associated indication information of the corresponding data packet.

In the foregoing solution, the directly sending, by the first protocol entity of the network device, the received first information from the CN to the first MAC protocol entity of the network device includes:

the first protocol entity directly sends the received first information and the third information to the first MAC protocol entity; the third information represents an identifier of the terminal.

In the foregoing solution, the sending, by the first MAC protocol entity, the received second information from the terminal directly to the first protocol entity includes:

analyzing the received MAC PDU to obtain a first MAC CE; the first MAC CE bears second information from a terminal;

identifying the second information as time-sensitive information according to the logical channel identifier of the first MAC CE;

sending the second information directly to the first protocol entity.

An embodiment of the present invention further provides an information transmission apparatus, which is disposed on a terminal, and includes: a second MAC protocol entity unit and a second protocol entity unit; wherein

The second MAC protocol entity unit is configured to receive first information from a network device; and directly sending the received first information to the second protocol entity unit; the second protocol entity unit is used for receiving the first information;

and/or the presence of a gas in the gas,

the second protocol entity unit is configured to directly send second information to the second MAC protocol entity unit; the second MAC protocol entity unit is configured to receive second information and send the second information by using a MAC CE; wherein the content of the first and second substances,

the protocol entity corresponding to the second protocol entity unit is a protocol entity of an NAS layer; the first information and the second information are both time sensitive information; and the first information received by the second MAC protocol entity unit is carried by using the MAC CE.

The embodiment of the present invention further provides an information transmission apparatus, which is arranged on a network device, and includes: a first protocol entity unit and a first MAC protocol entity unit; wherein the content of the first and second substances,

the first protocol entity unit is configured to directly send the received first information from the CN to the first MAC protocol entity unit; the first MAC protocol entity unit is used for receiving first information; sending the first information out by using the MAC CE;

and/or the presence of a gas in the gas,

the first MAC protocol entity unit is configured to directly send the received second information from the terminal to the first MAC protocol entity unit; the first protocol entity unit is used for sending out the received second information; wherein, the first and the second end of the pipe are connected with each other,

the protocol entity corresponding to the first protocol entity unit is an interface protocol entity between the CN and the network equipment; the first information and the second information are both time-sensitive information; and the second information received by the first MAC protocol entity is carried by using the MAC CE.

An embodiment of the present invention further provides a terminal, including: a second processor and a second communication interface; wherein the content of the first and second substances,

a second MAC protocol entity of the terminal receives first information from the network equipment through the second communication interface; the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal through the second communication interface;

and/or the presence of a gas in the gas,

the second protocol entity directly sends second information to the second MAC protocol entity through the second communication interface; the second MAC protocol entity sends the second information out through the second communication interface by using the MAC CE; wherein, the first and the second end of the pipe are connected with each other,

the second protocol entity is a protocol entity of an NAS layer; the first information and the second information are both time sensitive information; the first information received by the second MAC protocol entity is carried by using the MAC CE.

An embodiment of the present invention further provides a network device, including: a first processor and a first communication interface; wherein the content of the first and second substances,

the first protocol entity of the network equipment directly sends the received first information from the CN to the first MAC protocol entity of the network equipment through the first communication interface; the first MAC protocol entity sends out the first information through the first communication interface by using a MAC CE;

and/or the presence of a gas in the gas,

the first MAC protocol entity directly sends the received second information from the terminal to the first protocol entity through the first communication interface; the first protocol entity sends out the received second information through the first communication interface; wherein the content of the first and second substances,

An embodiment of the present invention further provides a terminal, including: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is configured to execute the steps of any of the above-mentioned methods of the terminal side when running the computer program.

An embodiment of the present invention further provides a network device, including: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is configured to execute the steps of any one of the methods of the network device side when running the computer program.

An embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of any one of the methods in the terminal side, or implements the steps of any one of the methods in the network device side.

In the information transmission method, the apparatus, the related device and the storage medium provided in the embodiments of the present invention, in a downlink direction, a first protocol entity of a network device directly sends received first information from a CN to a first MAC protocol entity of the network device; the first MAC protocol entity sends out the first information by using a MAC CE; and a second Media Access Control (MAC) protocol entity of the terminal receives the first information from the network equipment; the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal; in the uplink direction, the second protocol entity directly sends second information to the second MAC protocol entity; the second MAC protocol entity sends out the second information by using the MAC CE; and the first MAC protocol entity directly sends the received second information from the terminal to the first protocol entity; the first protocol entity sends out the received second information; the first information and the second information are both time-sensitive information, the time-sensitive information is transmitted by using the MAC CE, and the MAC CE is transmitted immediately without buffering the data without passing through a buffer (buffer) for buffering the data transmitted to the MAC layer by a Radio Resource Control (RRC) layer, and does not stay at a transmitting terminal device, so that the transmission requirement of the time-sensitive information can be met.

Drawings

FIG. 1 is a diagram illustrating a gNB architecture as a TSN transport node;

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

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

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

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

fig. 6 is a schematic diagram illustrating a downlink TSN information transmission process according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating an uplink TSN information transmission process according to an embodiment of the present invention;

FIG. 8 is a diagram illustrating a MAC CE format according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another information transmission apparatus according to an embodiment of the present invention;

FIG. 11 is a diagram illustrating a network device according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 13 is a schematic diagram of an information transmission structure according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples.

As shown in fig. 1, in the whole TSN network, a next generation node B (gNB) serves as a node to complete the transmission of information of the TSN network; specifically, the TSN network sends related information through a Control Plane (CP) or a User Plane (UP) of the gNB, and the gNB needs to send data to an air interface according to strict delay and jitter requirements of the TSN network, that is, the gNB needs to transmit data according to strict delay and jitter of the TSN network, which creates a serious challenge for an existing mechanism of the gNB.

Based on this, in various embodiments of the present invention, MAC CEs are used to transmit time sensitive information. Wherein, the time sensitive information is: low-delay and low-jitter traffic data, such as TSN information.

The embodiment of the invention provides an information transmission method, which is applied to network equipment, in particular to a base station (such as a gNB). In the downlink direction, as shown in fig. 2, the information transmission method provided in the embodiment of the present invention includes:

step 201: the first protocol entity of the network equipment directly sends the received first information from the CN to a first MAC protocol entity of the network equipment;

step 202: the first MAC protocol entity sends the first information out by using a MAC CE.

The first protocol entity is an interface protocol entity between the CN and the network equipment; the first information is time sensitive information.

Here, in step 201, after the time-sensitive information enters the base station, the first protocol entity directly sends the time-sensitive information to the first MAC protocol entity.

In practical application, the Control plane Transmission Protocol on the interface between the CN and the base station is Stream Control Transmission Protocol (SCTP); the control plane application layer protocol on the interface between the CN and the base station is NgAP; the transport protocol used on the interface between the CN and the base station (i.e. the radio access network) for transporting user data is GTP-U.

Based on this, when the CN sends the first information to the base station based on the NgAP, that is, when the CN sends the first information through the control plane, the first protocol entity is the NgAP protocol entity of the network device; and when the CN sends the first information to the base station based on the GTP-U, namely the first information is sent through the user plane, the first protocol entity is the GTP-U protocol entity of the network equipment. Wherein, the NgAP protocol entity is an upper layer of the SCTP protocol entity.

In practical application, after determining that the first information is time-sensitive information, the first protocol entity directly sends the time-sensitive information to the first MAC protocol entity.

Based on this, in an embodiment, the method may further include:

When the first protocol entity is the NgAP protocol entity of the network device, the following implementation manners of the first protocol entity recognizing that the first information from the CN is the time-sensitive information are available:

first, the SCTP bearer for the information may be established in advance, and the identification may be performed according to the SCTP bearer information of the first information. Based on this, in an embodiment, the first information from the CN is identified as time-sensitive information by using an SCTP bearer established between the CN and the network device for the first information.

Second, the type indication information of the associated path may be carried in the data packet corresponding to the first information, and the type of the data packet may be obtained from the associated path indication information for identification. Based on this, in an embodiment, the type of the data packet is obtained from the data packet corresponding to the first information; the first information from the CN is identified as time sensitive information using the type of the acquired data packet. And the first protocol entity acquires the type of the data packet from the associated indication information of the corresponding data packet.

Third, information for time-sensitive information is configured in advance so as to be directly recognized. Based on this, in an embodiment, the configured related information (such as a specific identifier and the like) for the time-sensitive information is used to identify the first information as the time-sensitive information.

In practical application, one implementation manner of the above manners can be selected according to needs.

When the protocol entity is a GTP-U protocol entity of the network device, the following implementation manners of the first protocol entity recognizing that the first information from the CN is the time-sensitive information are available:

firstly, a GTP-U bearing of a data packet corresponding to time sensitive information is established in advance, and identification is carried out according to GTP-U bearing information of the time sensitive information. Based on this, in an embodiment, the first information from the CN is identified as time-sensitive information by using a GTP-U bearer between the CN and the network device, which is established for the time-sensitive information.

In practical application, when the first protocol entity directly sends the first information to the first MAC protocol entity, the first protocol entity needs to carry the identity information of the terminal, so that the first information can be sent to the terminal.

Based on this, in an embodiment, the first protocol entity directly sends the received first information and third information to the first MAC protocol entity; the third information represents an identity of the terminal.

Here, in practical application, the third information may be a Cell-Radio Network Temporary Identifier (C-RNTI), an International Mobile Subscriber Identity (IMSI), a Temporary Mobile Subscriber Identity (TMSI), or other information capable of identifying the terminal.

In step 202, the first MAC protocol entity sends the first information to the terminal using the MAC CE.

In the uplink direction, as shown in fig. 3, the information transmission method provided in the embodiment of the present invention includes:

step 301: the first MAC protocol entity directly sends the received second information from the terminal to the first protocol entity;

step 302: the first protocol entity sends out the received second information.

Wherein the second information received by the first MAC protocol entity is carried using a MAC CE.

Here, in actual application, the first MAC protocol entity needs to determine whether the second information is time-sensitive information, and if so, directly sends the second information to the first MAC protocol entity.

Based on this, in an embodiment, the sending, by the first MAC protocol entity, the received second information from the terminal directly to the first protocol entity includes:

sending the second information directly to the first protocol entity.

In step 302, the first protocol entity sends the received second information to the CN.

Correspondingly, the embodiment of the invention also provides an information transmission method which is applied to the terminal. In the downlink direction, as shown in fig. 4, the information transmission method provided in the embodiment of the present invention includes:

step 401: a second MAC protocol entity of the terminal receives first information from network equipment;

step 402: and the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal.

The second protocol entity is a protocol entity of a non-access NAS layer; the second MAC protocol entity sends the second information out by using the MAC CE.

In step 402, the second MAC protocol entity directly sends the directly received first information to the second protocol entity only after determining that the first information is time-sensitive information.

Based on this, in an embodiment, the specific implementation of step 402 includes:

identifying the received first information as time-sensitive information;

Wherein the identifying that the received first information is time-sensitive information comprises:

first, the second MAC protocol entity receives first indication information; the first indication information indicates that the first information is time-sensitive information; according to the first indication information, identifying the received first information as time sensitive information;

secondly, the second MAC protocol entity analyzes the received MAC PDU to obtain a second MAC CE; the second MAC CE bears first information from network equipment; and identifying the first information as time-sensitive information according to the logical channel identifier of the second MAC CE.

Here, in practical applications, one implementation manner may be selected as needed to identify the first information as time-sensitive information.

Correspondingly, the second protocol entity also needs to know that the first information is time-sensitive information.

Based on this, in an embodiment, when the second MAC protocol entity directly sends the received first information to the second protocol entity of the terminal, the method may further include:

In the uplink direction, as shown in fig. 5, the information transmission method provided in the embodiment of the present invention includes:

step 501: the second protocol entity directly sends second information to the second MAC protocol entity;

step 502: the second MAC protocol entity sends the second information out by using the MAC CE.

In an embodiment, when the second protocol entity directly sends the second information to the second MAC protocol entity, the method may further include:

In step 502, the second MAC protocol entity issues the second information to the network device using the MAC CE.

In the information transmission method provided by the embodiment of the invention, in the downlink direction, a first protocol entity of network equipment directly sends received first information from a CN to a first MAC protocol entity of the network equipment; the first MAC protocol entity sends out the first information by using a MAC CE; and a second Media Access Control (MAC) protocol entity of the terminal receives first information from the network equipment; the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal; in the uplink direction, the second protocol entity directly sends second information to the second MAC protocol entity; the second MAC protocol entity sends out the second information by using the MAC CE; and the first MAC protocol entity directly sends the received second information from the terminal to the first protocol entity; the first protocol entity sends out the received second information; the first information and the second information are both time-sensitive information, the time-sensitive information is transmitted by using the MAC CE, and the MAC CE is transmitted immediately without a buffer for storing data transmitted to the MAC layer by a Radio Resource Control (RRC) layer, namely without buffering, and does not stay at a transmitting terminal device, so that the transmission requirement of the time-sensitive information can be met. Meanwhile, the terminal side is simple to change and easy to realize.

The present invention will be described in further detail with reference to the following application examples.

The present application embodiment takes TSN information as an example.

First, a transmission process of downlink TSN information is described.

As shown in fig. 6, in the process, after receiving the TSN information data packet from the CN, the NgAP protocol entity or GTP-U protocol entity of the base station directly sends the TSN information data packet to the MAC protocol entity on the base station side, and the MAC protocol entity on the base station side uses the MAC CE to carry the information and sends the information to the air interface; and after receiving the MAC CE from the air interface, the MAC protocol entity of the terminal analyzes the MAC CE and sends the obtained TSN information data packet to the NAS layer protocol entity. When the TSN information is transmitted through a control plane, an MAC protocol entity of the terminal sends the obtained TSN information packet to a NAS control plane (NAS-C) protocol entity; when the TSN information is transmitted through the user plane, the MAC protocol entity of the terminal sends the obtained TSN information packet to a NAS user plane (NAS-U) protocol entity.

The NgAP protocol entity or the GTP-U protocol entity needs to identify a received data packet as TSN information, and specifically, the TSN information data packet can be identified through a signaling mode according to a mapping relation (from NgAP or GTP-U to an MAC layer) configured by signaling; the TSN information packet may also be identified in a self-decision manner, i.e. according to the indication of the packet.

When the TSN information is sent through the control plane, the NgAP protocol entity needs to be able to identify the TSN information control packet and directly send the TSN information control packet to the MAC protocol entity immediately after receiving the TSN information control packet from the Ng interface.

The method for identifying the TSN information control data packet by the NgAP protocol entity comprises the following steps:

a) A signaling processing unit of a control plane establishes SCTP bearing aiming at a TSN information control data packet in advance, and an NgAP protocol entity identifies according to SCTP bearing information;

b) The NAS-C protocol entity of the CN carries the type indication information of the associated path in the TSN information control data packet, and the NgAP protocol entity obtains the type of the datagram from the associated path indication information when receiving the TSN information control data packet, thereby identifying the TSN information;

c) The signaling processing unit of the control plane is configured with information aiming at the TSN information control data packet to the NgAP protocol entity in advance, and the NgAP protocol entity directly identifies the information.

The mode a) and the mode c) belong to a signaling identification mode; the mode b) belongs to a self-decision mode for identification.

Here, when the NgAP protocol entity directly sends the TSN information control packet to the MAC protocol entity of the base station, it needs to carry the identification information of the terminal. The identity information of the terminal may be configured with the NgAP protocol entity and the MAC protocol entity by signaling allocation when the user establishes a service. The identity information of the terminal may be C-RNTI, IMSI, or TMSI, or certainly an identifier that can identify each other between an NgAP protocol entity and a MAC protocol entity.

When the TSN information is sent through the user plane, the GTP-U protocol entity needs to be able to identify the TSN information packet and directly send the TSN information packet to the MAC protocol entity immediately after receiving the TSN information packet from the Ng interface.

The way of identifying TSN information data packet by GTP-U protocol entity is as follows:

a) A signaling processing unit of the control plane establishes GTP-U load bearing aiming at the TSN information data packet in advance, and a GTP-U protocol entity identifies according to the GTP-U load bearing;

b) The NAS-U protocol entity of the CN carries the type indication information of the associated path in the TSN information data packet, and the GTP-U protocol entity obtains the type of the datagram from the associated path indication information when receiving the TSN information data packet, thereby identifying the TSN information.

Wherein, the mode a) is a signaling identification mode; mode b) belongs to a self-decision mode to identify.

Here, when the GTP-U protocol entity directly sends the TSN datagram to the MAC protocol entity of the base station, it needs to carry the identification information of the terminal. The identification information of the terminal can be used for signaling, allocating and configuring a GTP-U protocol entity and a MAC protocol entity when a user establishes a service. The identity information of the terminal may be C-RNTI, IMSI, TMSI, or a defined identity between a GTP-U protocol entity and a MAC protocol entity that can identify each other.

For a terminal, after obtaining a MAC CE SDU from a MAC PDU by a MAC protocol entity of the terminal, judging that the type of the received MAC CE is the MAC CE bearing a TSN information data packet according to a Logical Channel Identifier (LCID), obtaining a Payload (Payload) from the MAC CE, namely the TSN information data packet, directly sending the TSN information data packet to an NAS layer of the terminal by the MAC protocol entity, and indicating the data packet to be the TSN information data packet by the NAS layer, wherein the TSN information data packet is identified by a self-decision mode in the process. Of course, the MAC protocol entity and the NAS layer protocol entity may also identify the TSN information packet by a signaling indication manner, that is, identify the TSN information packet by a signaling configuration manner, that is, indicate the TSN information packet to reach an Access (AS) layer by signaling and send the TSN information packet by using the MAC CE.

Next, a transmission process of the uplink TSN information is described.

As shown in fig. 7, in this process, after receiving a TSN information packet from an upper layer (NAS layer), the terminal side directly sends the TSN information packet to an MAC protocol entity of the terminal side, and uses a MAC CE to carry the TSN information packet and send the TSN information packet to an air interface; and after receiving the MAC CE from the air interface, the MAC protocol entity of the base station analyzes the MAC CE and sends the obtained TSN information data packet to an interface between the CN and the base station so as to send the TSN information data packet to the CN.

For the terminal, when the NAS layer protocol entity of the terminal needs to send a TSN information data packet to the network side, the NAS layer protocol entity of the terminal directly sends the data packet to the MAC protocol entity of the terminal and indicates the MAC protocol entity that the data packet is the TSN information data packet; the MAC protocol entity builds up the uplink MAC CE according to the indication and sends the uplink MAC CE to the base station, and the process identifies the TSN information data packet in a self-decision mode. Of course, the MAC protocol entity and the NAS layer protocol entity may also identify the TSN information packet in a signaling indication manner, that is, identify the TSN information packet in a signaling configuration manner, that is, indicate the TSN information packet to the AS layer through signaling and send the TSN information packet by using the MAC CE.

For the base station, the MAC protocol entity of the base station parses the MAC CE from the received MAC PDU, determines that the MAC CE is the MAC CE of the TSN information data packet according to the LCID of the MAC CE, and then sends the TSN information data packet parsed from the MAC CE to the GTP-U protocol entity or the NgAP protocol entity according to the configured link information, and then the GTP-U protocol entity or the NgAP protocol entity respectively sends the TSN information data packet to the corresponding processing protocol entity of the NAS layer of the CN. After determining that the MAC CE is the MAC CE of the TSN information packet, the MAC protocol entity of the base station may also directly send the TSN information packet obtained through parsing in the MAC CE to the GTP-U protocol entity or the NgAP protocol entity, and indicate that the data packet is the TSN information packet.

It should be noted that: in order to implement the scheme of the embodiment of the invention, parameters of sending and receiving links of the data packet with the TSN information by the network side and the terminal side are kept consistent through air interface signaling.

When transmitting the TSN information, a new MAC CE is used. In the LCID tables of the uplink shared channel and the downlink shared channel defined in the related art, an available ID is used to identify the newly added MAC CE, as shown in table 1 and table 2, respectively.

TABLE 1

TABLE 2

In table 1, the LCID of the newly added MAC CE is 46, and in table 2, the LCID of the newly added MAC CE is 51.

As shown in fig. 8, the newly added MAC CE SDU includes only the TSN packet. The TSN information packet may be sent according to a whole byte, and if the TSN information packet is not a whole byte, the MAC protocol entity adds padding and then changes the padding into a whole byte. The newly added MAC CE sub-header (SubHeader) may be defined according to the manner of the related art at present, and the value of the LCID is the type value of the defined new MAC CE.

From the above description, it can be seen that, in the solution of the embodiment of the present invention, the terminal side is simple to implement; the air interface signaling is simple; and the TSN information transmission real-time performance is high.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides an information transmission apparatus, which is disposed on a network device, and as shown in fig. 9, includes: a first protocol entity unit 91 and a first MAC protocol entity unit 92; wherein, the first and the second end of the pipe are connected with each other,

the first protocol entity unit 91 is configured to directly send the received first information from the CN to the first MAC protocol entity unit 92 of the network device; the first MAC protocol entity unit 92 is configured to receive first information; sending the first information out by using the MAC CE;

and/or the presence of a gas in the atmosphere,

the first MAC protocol entity unit 92 is configured to send the received second information from the terminal directly to the first protocol entity unit 91; the first protocol entity unit 91 is configured to send out the received second information; wherein, the first and the second end of the pipe are connected with each other,

the protocol entity corresponding to the first protocol entity unit 91 is an interface protocol entity between the CN and the network device; the first information and the second information are both time-sensitive information; and the second information received by the first MAC protocol entity is carried by using the MAC CE.

In an embodiment, the first protocol entity unit 91 is further configured to identify the first information from the CN as time-sensitive information.

When the protocol entity corresponding to the first protocol entity unit 91 is an NgAP protocol entity of the network device, the identifying that the first information from the CN is time-sensitive information includes one of:

identifying first information from the CN as time-sensitive information by utilizing SCTP load between the CN and the network equipment, which is established for the time-sensitive information;

acquiring the type of a data packet from the data packet corresponding to the first information; identifying first information from the CN as time sensitive information by using the type of the acquired data packet;

When the protocol entity corresponding to the first protocol entity unit 91 is a GTP-U protocol entity of the network device, the identifying that the first information from the CN is time-sensitive information includes one of:

acquiring the type of a data packet from the data packet corresponding to the first information; the first information from the CN is identified as time sensitive information by the type of the acquired data packet.

The obtaining of the type of the data packet from the data packet corresponding to the first information includes:

The first protocol entity unit 91 is specifically configured to directly send the received first information and the received third information to the first MAC protocol entity unit 92; the third information represents an identity of the terminal.

The first MAC protocol entity unit 92 is specifically configured to:

sending the second information directly to the first protocol entity unit 91.

In practical applications, the first protocol entity unit 91 and the first MAC protocol entity unit 92 may be implemented by a processor in an information transmission device in combination with a communication interface.

In order to implement the method on the terminal side in the embodiment of the present invention, an embodiment of the present invention further provides an information transmission apparatus, which is disposed on a terminal, and as shown in fig. 10, the apparatus includes: a second MAC protocol entity unit 101 and a second protocol entity unit 102; wherein

The second MAC protocol entity unit 101 is configured to receive first information from a network device; and directly send the received first information to the second protocol entity unit 102; the second protocol entity unit 102 is configured to receive the first information;

and/or the presence of a gas in the gas,

the second protocol entity unit 102 is configured to directly send second information to the second MAC protocol entity unit 101; the second MAC protocol entity unit 101 is configured to receive second information and send the second information by using a MAC CE; wherein the content of the first and second substances,

the protocol entity corresponding to the second protocol entity unit 102 is a protocol entity of an NAS layer; the first information and the second information are both time-sensitive information; the first information received by the second MAC protocol entity unit 101 is carried by using a MAC CE.

In an embodiment, the second MAC protocol entity unit 101 is specifically configured to:

identifying the received first information as time-sensitive information;

In one embodiment, the identifying the received first information as time-sensitive information includes one of:

analyzing the received MAC PDU to obtain a second MAC CE; the second MAC CE bears first information from network equipment; and identifying the first information as time-sensitive information according to the logical channel identifier of the second MAC CE.

The second MAC protocol entity unit 101 is further configured to send second indication information to the second protocol entity when receiving the first information from the network device; the second indication information indicates that the first information is time-sensitive information.

In an embodiment, the second protocol entity unit 102 is further configured to send third indication information to the second MAC protocol entity unit 101 when directly sending the second information to the second MAC protocol entity unit 101; the third indication information indicates that the second information is time-sensitive information;

the second MAC protocol entity unit 101 is further configured to generate a MAC CE based on the third indication information and the received second information.

In practical applications, the second MAC protocol entity unit 101 and the second protocol entity unit 102 may be implemented by a processor in an information transmission apparatus in combination with a communication interface.

It should be noted that: in the information transmission device provided in the foregoing embodiment, when information is transmitted, only the division of each program module is illustrated, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device may be divided into different program modules to complete all or part of the processing described above. In addition, the information transmission apparatus and the information transmission method provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the method embodiments and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method on the network device side in the embodiment of the present invention, an embodiment of the present invention further provides a network device, as shown in fig. 11, where the network device 110 includes:

a first communication interface 111 capable of performing information interaction with a terminal;

the first processor 112 is connected to the first communication interface 111 to implement information interaction with a terminal, and is configured to execute a method provided by one or more technical solutions of the network device side when running a computer program. And the computer program is stored on the first memory 113.

Specifically, the first protocol entity of the network device directly sends the received first information from the CN to the first MAC protocol entity of the network device through the first communication interface 111; the first MAC protocol entity sends out the first information through the first communication interface 111 using a MAC CE;

and/or the presence of a gas in the gas,

the first MAC protocol entity directly sends the received second information from the terminal to the first MAC protocol entity through the first communication interface 111; the first protocol entity sends out the received second information through the first communication interface 111; wherein the content of the first and second substances,

In an embodiment, the first protocol entity identifies the first information from the CN as time-sensitive information by the first processor 112.

In an embodiment, when the first protocol entity is an NgAP protocol entity of the network device; the first protocol entity identifies, by the first processor 112, the first information from the CN as time-sensitive information, including one of:

identifying first information from the CN as time-sensitive information by using a Stream Control Transmission Protocol (SCTP) bearer between the CN and the network equipment, which is established for the time-sensitive information;

In an embodiment, when the first protocol entity is a GTP-U protocol entity of the network device, the first protocol entity identifies, through the first processor 112, that the first information from the CN is time-sensitive information, which includes one of the following:

Wherein, the obtaining the type of the data packet from the data packet corresponding to the first information includes:

In an embodiment, the first protocol entity sends the received first information and the third information directly to the first MAC protocol entity through the first communication interface 111; the third information represents an identifier of the terminal.

In an embodiment, the sending, by the first MAC protocol entity, the second information received from the terminal directly to the first protocol entity includes:

analyzing the received MAC PDU by the first processor 112 to obtain a first MAC CE; the first MAC CE bears second information from a terminal;

identifying, by the first processor 112, the second information as time-sensitive information according to the logical channel identifier of the first MAC CE;

and directly sending the second information to the first protocol entity through the second communication interface.

It should be noted that: the specific processing procedures of the first processor 112 and the first communication interface 111 are detailed in the method embodiment, and are not described herein again.

Of course, in practice, the various components in network device 110 are coupled together by bus system 114. It will be appreciated that the bus system 114 is used to enable communications among the components. The bus system 114 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 114 in FIG. 11.

The first memory 113 in the embodiment of the present invention is used to store various types of data to support the operation of the network device 110. Examples of such data include: any computer program for operating on network device 110.

The method disclosed in the above embodiments of the present invention may be applied to the first processor 112, or implemented by the first processor 112. The first processor 112 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the first processor 112. The first Processor 112 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 112 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 113, and the first processor 112 reads the information in the first memory 113 and performs the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the network Device 110 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, programmable Logic Devices (PLDs), complex Programmable Logic Devices (CPLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program modules, and in order to implement the method on the terminal side according to the embodiment of the present invention, as shown in fig. 12, the terminal 120 includes:

a second communication interface 121, which can perform information interaction with a network device;

the second processor 122 is connected to the second communication interface 121 to implement information interaction with a network device, and is configured to execute a method provided by one or more technical solutions of the terminal side when running a computer program. And the computer program is stored on the second memory 123.

Specifically, the second MAC protocol entity of the terminal receives the first information from the network device through the second communication interface 121; the second MAC protocol entity directly sends the received first information to the second protocol entity of the terminal through the second communication interface 121;

and/or the presence of a gas in the atmosphere,

the second protocol entity directly sends the second information to the second MAC protocol entity through the second communication interface 121; the second MAC protocol entity sends out the second information through the second communication interface 121 by using a MAC CE; wherein, the first and the second end of the pipe are connected with each other,

Wherein, in an embodiment, the second MAC protocol entity identifies the received first information as time-sensitive information through the second processor 122;

and sending the received first information directly to a second protocol entity of the terminal through the second communication interface 121.

When the second MAC protocol entity directly sends the received first information to the second protocol entity of the terminal through the second communication interface 121, sending second indication information to the second protocol entity through the second communication interface 121; the second indication information indicates that the first information is time-sensitive information.

When the second protocol entity directly sends the second information to the second MAC protocol entity, the second protocol entity sends third indication information to the second MAC protocol entity through the second communication interface 121; the third indication information indicates that the second information is time-sensitive information;

the second MAC protocol entity generates, by the second processor 122, a MAC CE based on the third indication information and the received second information.

It should be noted that: the specific processing procedures of the second processor 122 and the second communication interface 121 are detailed in a method embodiment, and are not described again here.

Of course, in practice, the various components in the terminal 120 are coupled together. It will be appreciated that the bus system 124 is used to enable communications among the components. The bus system 124 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 124 in fig. 12.

The second memory 123 in the embodiment of the present invention is used to store various types of data to support the operation of the interface terminal 120. Examples of such data include: any computer program for operating on the terminal 120.

The method disclosed in the above embodiments of the present invention may be applied to the second processor 122, or implemented by the second processor 122. The second processor 122 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the second processor 122. The second processor 122 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 122 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 123, and the second processor 122 reads the information in the second memory 123, and in combination with the hardware thereof, performs the steps of the foregoing method.

In an exemplary embodiment, the terminal 120 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the aforementioned methods.

It is understood that the memories (the first memory 113, the second memory 123) of the embodiments of the present invention may be either volatile memory or nonvolatile memory, and may also include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), synchronous Static Random Access Memory (SSRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), synchronous Dynamic Random Access Memory (SLDRAM), direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention provides a handover system, as shown in fig. 13, where the handover system includes: network device 131 and terminal 132; wherein, the first and the second end of the pipe are connected with each other,

in the downlink direction, the first protocol entity of the network device 131 directly sends the received first information from the CN to the first MAC protocol entity of the network device 131; the first MAC protocol entity sends out the first information by using MAC CE; the MAC protocol entity of the terminal 132 receives the first information from the network device 131; and the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal.

In the uplink direction, the second protocol entity directly sends second information to the second MAC protocol entity; the second MAC protocol entity sends out the second information by using the MAC CE; the first MAC protocol entity sends the received second information from the terminal 132 directly to the first MAC protocol entity; the first protocol entity sends out the received second information; wherein, the first and the second end of the pipe are connected with each other,

the first protocol entity is an interface protocol entity between a core network and network equipment; the second protocol entity is a protocol entity of an NAS layer; the first information and the second information are both time sensitive information.

It should be noted that: the specific processing procedures of the network device 131 and the terminal 132 are described in detail above and are not described here.

In an exemplary embodiment, the present invention further provides a storage medium, specifically a computer-readable storage medium, for example, a first memory 113 storing a computer program, where the computer program is executable by the first processor 112 of the network device 110 to perform the steps of the network device side method. For example, the second memory 123 may be adapted to store a computer program, which is executable by the second processor 122 of the terminal 120 to perform the steps of the terminal-side method described above. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. An information transmission method, applied to a terminal, includes:

a second Media Access Control (MAC) protocol entity of the terminal receives first information from network equipment; the second MAC protocol entity directly sends the received first information to a second protocol entity of the terminal;

and/or the presence of a gas in the atmosphere,

the second protocol entity directly sends second information to the second MAC protocol entity; the second MAC protocol entity sends out the second information by using a media access control element (MAC CE); wherein the content of the first and second substances,

the second protocol entity is a protocol entity of a non-access NAS layer; the first information and the second information are both time-sensitive information; the first information received by the second MAC protocol entity is carried by using the MAC CE.

2. The method according to claim 1, wherein the second MAC protocol entity directly sends the received first information to the second protocol entity of the terminal, and comprises:

identifying the received first information as time-sensitive information;

3. The method of claim 2, wherein the identifying the received first information as time-sensitive information comprises one of:

analyzing the received MAC protocol data unit PDU to obtain a second MAC CE; the second MAC CE bears first information from network equipment; and identifying the first information as time-sensitive information according to the logical channel identifier of the second MAC CE.

4. The method according to claim 1, wherein when the second MAC protocol entity directly transmits the received first information to the second protocol entity of the terminal, the method further comprises:

5. The method of claim 1, wherein when the second protocol entity sends the second information directly to the second MAC protocol entity, the method further comprises:

6. An information transmission method applied to a network device includes:

a first protocol entity of the network equipment directly sends the received first information from a core network to a first MAC protocol entity of the network equipment; the first MAC protocol entity sends out the first information by using MAC CE;

and/or the presence of a gas in the gas,

the first protocol entity is an interface protocol entity between a core network and network equipment; the first information and the second information are both time-sensitive information; and the second information received by the first MAC protocol entity is carried by using the MAC CE.

7. The method of claim 6, wherein the first protocol entity is an Ng interface application protocol (NgAP) protocol entity of the network device or a GPRS tunneling protocol (GTP-U) protocol entity of the network device.

8. The method of claim 6, further comprising:

the first protocol entity identifies the first information from the core network as time sensitive information.

9. The method of claim 8, wherein the first protocol entity is an NgAP protocol entity of the network device; the first protocol entity identifies first information from a core network as time-sensitive information, including one of:

identifying first information from a core network as time-sensitive information by using Stream Control Transmission Protocol (SCTP) load established for the time-sensitive information between the core network and the network equipment;

acquiring the type of a data packet from the data packet corresponding to the first information; identifying first information from a core network as time-sensitive information by using the type of the acquired data packet;

10. The method of claim 8, wherein the first protocol entity is a GTP-U protocol entity of the network device; the first protocol entity identifies the first information from the core network as time-sensitive information, and comprises one of the following:

identifying first information from a core network as time sensitive information by using a GTP-U bearer between the core network and the network equipment, which is established for the time sensitive information;

acquiring the type of a data packet from the data packet corresponding to the first information; and identifying the first information from the core network as time-sensitive information by using the type of the acquired data packet.

11. The method according to claim 9 or 10, wherein the obtaining the type of the data packet from the data packet corresponding to the first information comprises:

12. The method according to claim 6, wherein the first protocol entity of the network device directly sends the received first information from the core network to the first MAC protocol entity of the network device, and the method comprises:

13. The method according to claim 6, wherein the first MAC protocol entity sends the received second information from the terminal directly to the first MAC protocol entity, and comprises:

sending the second information directly to the first protocol entity.

14. An information transmission apparatus, provided on a terminal, comprising: a second MAC protocol entity unit and a second protocol entity unit; wherein

and/or the presence of a gas in the gas,

the protocol entity corresponding to the second protocol entity unit is a protocol entity of an NAS layer; the first information and the second information are both time-sensitive information; and the first information received by the second MAC protocol entity unit is carried by using the MAC CE.

15. An information transmission apparatus, provided on a network device, comprising: a first protocol entity unit and a first MAC protocol entity unit; wherein, the first and the second end of the pipe are connected with each other,

the first protocol entity unit is configured to directly send the received first information from the core network to the first MAC protocol entity unit; the first MAC protocol entity unit is used for receiving first information; sending the first information out by using the MAC CE;

and/or the presence of a gas in the atmosphere,

the protocol entity corresponding to the first protocol entity unit is an interface protocol entity between a core network and network equipment; the first information and the second information are both time-sensitive information; and the second information received by the first MAC protocol entity is carried by using the MAC CE.

16. A terminal, comprising: a second processor and a second communication interface; wherein, the first and the second end of the pipe are connected with each other,

and/or the presence of a gas in the gas,

the second protocol entity directly sends second information to the second MAC protocol entity through the second communication interface; the second MAC protocol entity sends the second information out through the second communication interface by using the MAC CE; wherein the content of the first and second substances,

17. A network device, comprising: a first processor and a first communication interface; wherein, the first and the second end of the pipe are connected with each other,

a first protocol entity of the network equipment directly sends the received first information from the core network to a first MAC protocol entity of the network equipment through the first communication interface; the first MAC protocol entity sends out the first information through the first communication interface by using a MAC CE;

and/or the presence of a gas in the gas,

18. A terminal, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any one of claims 1 to 5 when running the computer program.

19. A network device, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any one of claims 6 to 13 when running the computer program.

20. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 5, or for performing the steps of the method of any one of claims 6 to 13, when the computer program is executed by a processor.