CN108307528B

CN108307528B - Information transmission method, device and system

Info

Publication number: CN108307528B
Application number: CN201610658761.5A
Authority: CN
Inventors: 罗薇; 陈琳; 黄莹
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-08-11
Filing date: 2016-08-11
Publication date: 2021-05-25
Anticipated expiration: 2036-08-11
Also published as: CN108307528A; WO2018028254A1

Abstract

The document discloses an information transmission method, an information transmission device and an information transmission system, wherein the information transmission method comprises the following steps: the relay obtains any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or, relay-distributing terminal identification information or terminal identification index number information of the first terminal; the relay sends at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal to the network control unit or the first terminal. The scheme realizes that the relay correctly executes the relay function.

Description

Information transmission method, device and system

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to an information transmission method, apparatus, and system.

Background

With the development of wireless multimedia services, the demand for high data rate and user experience is increasing, and thus higher requirements are placed on the system capacity and coverage of the conventional cellular network. On the other hand, the popularity of applications such as social networking, near-distance data sharing, local advertising, etc. has resulted in an increasing demand for people to know and communicate with people or things of interest nearby (Proximity Services). Given the significant limitations of conventional cell-based cellular networks in terms of high data rates and support for proximity services, D2D (Device-to-Device) technology, representing a new direction in future communication technology development, arose. The application of the D2D technology can reduce the burden of the cellular network, reduce the battery power consumption of the user equipment, increase the data rate, and improve the robustness of the network infrastructure, and well meet the requirements of the high data rate service and the proximity service.

The D2D technology can operate in a licensed or unlicensed band, allowing multiple D2D capable UEs (i.e., D2D UEs, D2D User Equipment, referred to as D2D UEs for short) to perform direct discovery/direct communication with or without network infrastructure. The D2D technology generally includes D2D discovery technology and D2D communication technology. D2D discovery techniques refer to techniques for determining/determining that two or more D2D user devices are in proximity to each other (e.g., within direct D2D communication range) or that a first user device is in proximity to a second user device. The D2D communication technology refers to a technology in which some or all of communication data between D2D user devices may be communicated directly without passing through a network infrastructure.

The D2D application scenarios of the R12 and R13 versions are mainly three:

1) the UE1 and the UE2 perform data interaction under the coverage of a cellular network, and user plane data does not pass through a network infrastructure, as in mode 1 of fig. 1;

2) UE relay transmission in weak/no coverage areas, such as mode 2 in fig. 1, allows a UE4 with poor signal quality to communicate with the network through a UE3 with network coverage nearby, which can help operators to extend coverage and increase capacity;

3) in the event of an earthquake or an emergency, where the cellular network is not operating properly, direct communication between devices is allowed, such as mode 3 in fig. 1, where the control plane and the user plane between the UE5, UE6, and UE7 are not connected via the network infrastructure for one-hop or multi-hop data communication.

In D2D scenarios 2) and 3) of the above R13 version, D2D UEs may act as relay nodes, enabling far-end D2D UEs (Remote D2D UEs) at the edge of cellular network coverage or out of coverage to communicate with the network cellular through the relay nodes UEs, and D2D UEs to communicate D2D through the relay nodes UEs. In R13 version D2D, D2D UE (also referred to as Relay UE) as a Relay node transfers data in layer 3 (i.e., IP layer) according to information such as a target IP (Internet Protocol) address and port number. In the D2D technology of the R14 version, it is considered that a wearable device (e.g., MTE or NB-IoT (Narrow Band Internet of Things) device) accesses a network scenario through a Relay UE, in order to enable an operator (i.e., a core network element MME (mobile Management node) and a base station) to manage the wearable device (i.e., a Remote UE) more effectively, the Relay UE is required to forward data and control plane signaling at an AS (Access Stratum) layer, but the related technology does not provide a method for forwarding signaling at the AS layer by the Relay UE, so that the D2D Relay function of the Relay UE cannot be executed correctly.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the invention provides an information transmission method, device and system, which can realize that a relay correctly executes a relay function.

In a first aspect, an information transmission method in an embodiment of the present invention includes:

the relay obtains any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information and the bearing identification information of the first terminal; and/or, relay-distributing terminal identification information or terminal identification index number information of the first terminal;

the relay sends at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal to a network control unit or the first terminal.

In a second aspect, an embodiment of the present invention further provides an information transmission method, including: the first terminal obtains any one or a combination of the following: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the first terminal sends or receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal.

In a third aspect, an embodiment of the present invention further provides an information transmission method, including:

the network control unit obtains any one or a combination of the following: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or the network control unit allocates terminal identification information or terminal identification index number information of the first terminal;

the network control unit sends or receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal.

In a fourth aspect, an embodiment of the present invention further provides an information transmission apparatus, which is applied to a relay, and includes:

a first obtaining module, configured to obtain any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information and the bearing identification information of the first terminal; and/or, the first allocation module is used for allocating the terminal identification information or the terminal identification index number information of the first terminal;

the first sending module is configured to send at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal, and bearer identification information of the first terminal to the network control unit or the first terminal.

In a fifth aspect, an embodiment of the present invention further provides an information transmission apparatus, which is applied to a first terminal, and includes:

a second obtaining module, configured to obtain any one or a combination of: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal;

the first transmission module is configured to send or receive at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal, and bearer identification information of the first terminal.

In a sixth aspect, an embodiment of the present invention further provides an information transmission apparatus, applied to a network control unit, including:

a third obtaining module, configured to obtain any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or, the second allocating module is used for allocating the terminal identification information or the terminal identification index number information of the first terminal;

the second transmission module is configured to send or receive at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal, and bearer identification information of the first terminal.

In a seventh aspect, an embodiment of the present invention further provides an information transmission system, including: a first terminal, a relay and a network control unit,

the relay is configured to obtain any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information and the bearing identification information of the first terminal; and/or allocating terminal identification information or terminal identification index number information of the first terminal;

the relay is further configured to send at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal, and bearer identification information of the first terminal to the network control unit or the first terminal.

In addition, an embodiment of the present invention further provides a relay, including the information transmission apparatus according to the fourth aspect.

An embodiment of the present invention further provides a terminal, including the information transmission apparatus according to the fifth aspect.

An embodiment of the present invention further provides a base station, including the information transmission apparatus according to the sixth aspect.

In addition, an embodiment of the present invention further provides an electronic device, which includes a processor and a memory storing instructions executable by the processor, and when the instructions are executed by the processor, the electronic device performs the following operations:

obtaining any one or combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information and the bearing identification information of the first terminal; and/or allocating terminal identification information or terminal identification index number information of the first terminal;

and sending at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal to a network control unit or the first terminal.

An embodiment of the present invention further provides an electronic device, which includes a processor and a memory storing executable instructions of the processor, and when the instructions are executed by the processor, the following operations are performed:

obtaining any one or combination of: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal;

and sending or receiving at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal.

obtaining any one or combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or allocating terminal identification information or terminal identification index number information of the first terminal;

An embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the information transmission method applied to the relay is implemented.

An embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the information transmission method applied to the first terminal is implemented.

An embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the information transmission method applied to the network control unit is implemented.

The scheme provided by the embodiment of the invention can realize that the relay correctly executes the relay function. By adopting the scheme of the embodiment of the invention, compared with the related technology, the relay can correctly execute the control information forwarding, so that an operator can effectively manage and control the first terminal (such as a remote terminal, a wearable terminal, a portable terminal or a terminal with limited bandwidth).

Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.

Drawings

Fig. 1 is a schematic diagram of application modes of D2D technology in R12 and R13 versions;

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 an information transmission method according to a first embodiment;

FIG. 6 is a flowchart of an information transmission method according to the second embodiment;

fig. 7 is a flowchart of an information transmission method according to a third embodiment;

FIG. 8 is a flowchart of an information transmission method according to a fourth embodiment;

FIG. 9 is a flowchart of an information transmission method according to a fifth embodiment;

fig. 10 is a diagram illustrating a MAC layer format according to the fifth embodiment;

FIG. 11 is a diagram illustrating a MAC subheader according to the fifth embodiment;

FIG. 12 is a diagram illustrating another MAC layer format according to the fifth embodiment;

FIG. 13 is a diagram showing another MAC subheader according to the fifth embodiment;

fig. 14 is a flowchart of an information transmission method of the sixth embodiment;

fig. 15 is a flowchart of an information transmission method of the seventh embodiment;

fig. 16 is a schematic diagram of an information transmission apparatus according to an embodiment of the present invention;

fig. 17 is a schematic diagram of another information transmission apparatus according to an embodiment of the present invention;

fig. 18 is a schematic diagram of another information transmission apparatus according to an embodiment of the present invention;

fig. 19 is a schematic diagram of an information transmission system according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the embodiments described below are only for illustrating and explaining the present application and are not intended to limit the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

It should be noted that, if not conflicting, the embodiments and features of the embodiments may be combined with each other and are within the scope of protection of the present application. Additionally, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

Fig. 2 is a flowchart of an information transmission method according to an embodiment of the present invention. As shown in fig. 2, the information transmission method provided in this embodiment includes the following steps:

step S11: the relay obtains any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or, relay-distributing terminal identification information or terminal identification index number information of the first terminal;

step S12: the relay sends at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal to the network control unit or the first terminal.

In this embodiment, the relay may obtain any one or a combination of the following: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the relay sends at least one or all of the acquired information to a network control unit or a first terminal;

alternatively, the relay may obtain any one or a combination of: the method comprises the steps that data of a first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal are distributed in a relay mode, and the terminal identification information or the terminal identification index number information of the first terminal is distributed in a relay mode; the relay sends at least one or all of the acquired information to a network control unit or a first terminal, or the relay sends at least one or all of the acquired information and the allocated information to the network control unit or the first terminal, or the relay sends the allocated information to the network control unit or the first terminal; for example, the relay may obtain any one or a combination of: the method comprises the steps that data of a first terminal, control information of the first terminal and bearing identification information of the first terminal are distributed in a relay mode, and terminal identification information or terminal identification index number information of the first terminal is distributed in a relay mode; the relay sends at least one or all of the acquired information and the distributed information to a network control unit or a first terminal;

alternatively, the relay may allocate the terminal identification information or the terminal identification index number information of the first terminal, and the relay sends the allocated information to the network control unit or the first terminal.

Optionally, the control information includes at least one of: a Radio Resource Control (RRC) message, Media Access Control (MAC) Control Element information (CE), and a system message.

In this embodiment, the first terminal may include a Remote terminal (Remote UE), a wearable terminal, a portable terminal, or a bandwidth-limited terminal, and the Relay may include a Relay terminal (Relay UE) or a base station having a Relay function. The network control unit may be a base station.

Optionally, the terminal identification information of the first terminal includes any one or a combination of the following: a terminal cell radio network temporary identifier (C-RNTI), a layer two terminal identifier, a newly defined terminal identifier, a layer two identifier of an adjacent service terminal, an adjacent service terminal identifier, an S temporary mobile subscriber identity (S-TMSI), an international mobile equipment identity (IMSI) and a Globally Unique Temporary Identifier (GUTI);

the bearer identification information comprises any one or a combination of: evolved Packet System (EPS) bearer identification, radio bearer identification, S1 bearer identification, Logical Channel Identification (LCID), newly defined bearer identification; or, the bearer identification information includes combination information for identifying the first terminal and a bearer, where the bearer is a radio bearer or an S1 bearer or an EPS bearer of the first terminal.

In step S11, the relay acquiring the terminal identification information of the first terminal may include:

the relay receives a relay discovery message or a relay discovery request message of a first terminal, wherein the relay discovery message or the relay discovery request message carries terminal identification information of the first terminal;

or, the relay receives a connection establishment request message or a direct communication request message of a first terminal, where the connection establishment request message or the direct communication request message carries terminal identification information of the first terminal;

or, after the relay sends the terminal identification request message, receiving a terminal identification response message carrying the terminal identification information of the first terminal.

In step S11, the relay assigning the terminal identification information of the first terminal may include:

the relay receives a connection establishment request message or a direct communication request message of a first terminal;

and the relay allocates a temporary terminal identifier for the first terminal.

the relay allocates a temporary terminal identifier to the first terminal, or allocates a null identifier or a specific identifier to the first terminal, wherein the null identifier or the specific identifier is used for indicating that the terminal identifier of the first terminal is null;

the relay sends a connection establishment request message or a direct communication request message of the first terminal and a temporary terminal identifier or an empty identifier or a specific identifier to a network side;

and the relay receives a connection establishment response message from a network side, wherein the connection establishment response message carries a terminal identifier distributed to the first terminal by the network side.

Optionally, before the relay allocates the temporary terminal identifier to the first terminal, the method further includes: the relay receives temporary terminal identification configuration information, wherein the temporary terminal identification configuration information comprises indication information of a temporary terminal identification configuration range.

Optionally, the temporary terminal identifier configuration information is carried by an RRC reconfiguration message, or is carried by a system message.

Optionally, after the relay acquires the terminal identification information of the first terminal, the method further includes: and sending the identification list of the first terminal to a network control unit. Wherein, the sequence of the first terminal in the identification list represents the terminal identification index number of the first terminal; or, the corresponding relation between each terminal identifier and the terminal identifier index number is indicated in the identifier list. Optionally, the list of identities of the first terminal comprises one or more first terminals.

In step S12, the relay may send at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index information of the first terminal, and the bearer identification information of the first terminal to a network control unit by at least one of:

a Packet Data Convergence Protocol (PDCP) layer subheader includes terminal identification information or terminal identification index number information, and the terminal identification information or terminal identification index number information is used to indicate to which terminal control information carried in a PDCP Packet belongs;

the PDCP layer subheader comprises bearing identification information, and the bearing identification information is used for indicating which terminal and/or bearing the control information carried in the PDCP packet belongs to;

the RRC message comprises terminal identification information or terminal identification index number information, and the terminal identification information or the terminal identification index number information is used for indicating which terminal the RRC message comes from;

the RRC message comprises bearing identification information, and the bearing identification information is used for indicating which terminal and/or bearing the RRC message comes from;

the MAC sub-header corresponding to the MAC CE comprises terminal identification information or terminal identification index number information, and the terminal identification information or the terminal identification index number information is used for indicating which terminal the control information carried in the MAC CE belongs to;

the MAC sub header corresponding to the MAC CE comprises indication information of whether the MAC CE is the forwarded control information; if the control information belongs to the forwarded control information, carrying terminal identification information or terminal identification index number information in the MAC CE;

the terminal identification information or terminal identification index number information is marked in the MAC CE.

In step S12, the relaying sending the control information of the first terminal to the first terminal may include:

the relay sends the MAC CE of the first terminal to the first terminal through a single-side shared channel (SL-SCH), a single-side control channel or a single-side discovery channel, wherein the relay marks the MAC CE through a Logical Channel Identifier (LCID) in a sub-header of a Protocol Data Unit (PDU).

the relay sends control information to a first terminal through a single-side main system message (SL-MIB);

or, the relay sends the control information to the first terminal through one or more discovery messages;

or, the relay indicates the resource configuration information of the control information in the SL-MIB, and then periodically broadcasts and sends the control information through a unilateral communication channel;

or, after the relay receives a direct communication request message sent by the first terminal, the relay sends the control information to the first terminal through a direct communication response message.

Optionally, the resource configuration information includes at least one of:

group identification;

a single-sided discovery or single-sided communication resource indication;

a frame offset;

shifting a subframe;

a resource pattern or bitmap;

indexing the resources;

single-side discovery transmitting or receiving resource pool;

the unilateral communication sending or receiving resource pool further comprises an SA and/or data resource pool;

single-side discovery transmitting or receiving resource pool index;

and transmitting or receiving the resource pool index by unilateral communication.

Optionally, the system message comprises at least one of: information related to access barring (ac-barring) in the SIB2, timer setting information of the UE, bearer optimization indication information (cvlot-EPS-optimationinfo), information related to cell access in the SIB1, such as a PLMN (Public Land Mobile Network) list, a Tracking Area Code (TAC), a cell identification (cell ID), terminal access indication information (category0Allowed-r12) of whether level 0 is Allowed, information related to power control (e.g., maximum transmit power ax, target received power level po, path loss compensation factor alpha), and the like.

Fig. 3 is a flowchart of another information transmission method according to an embodiment of the present invention. As shown in fig. 3, the information transmission method provided in this embodiment includes the following steps:

step S21: the first terminal obtains any one or a combination of the following: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal;

step S22: the first terminal sends or receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal.

In this embodiment, the first terminal may obtain any one or a combination of the following: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the first terminal sends at least one or all of the acquired information, or the first terminal sends at least one or all of data of the first terminal, control information of the first terminal and the acquired information, wherein the data and the control information of the first terminal are generated by the first terminal;

alternatively, the first terminal may obtain any one or a combination of: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the first terminal can receive at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal; for example, the first terminal may obtain any one or a combination of: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the first terminal may receive data of the first terminal and/or control information of the first terminal.

Optionally, the control information includes at least one of: radio Resource Control (RRC) messages, medium access control layer (MAC) control element information (CE), system messages.

The first terminal of this embodiment may include: a remote terminal, a wearable terminal, a portable terminal, or a bandwidth limited terminal.

In step S21, the acquiring, by the first terminal, the terminal identification information of the first terminal may include:

receiving terminal identification information distributed by a network side; alternatively, the first and second electrodes may be,

pre-configuring terminal identification information; alternatively, the first and second electrodes may be,

and receiving the temporary terminal identification message sent by the relay.

In step S22, the sending, by the first terminal, the terminal identifier of the first terminal may include:

sending a relay discovery message or a relay discovery request message, wherein the relay discovery message or the relay discovery request message carries terminal identification information of a first terminal;

or sending a connection establishment request message or a direct communication request message, wherein the connection establishment request message or the direct communication request message carries terminal identification information of the first terminal;

or after receiving the terminal identification request message, sending a terminal identification response message carrying the terminal identification information of the first terminal.

In step S22, the sending, by the first terminal, the control information of the first terminal may include:

the first terminal sends the MAC CE to a relay through a single-side shared channel (SL-SCH) or a single-side control channel or a single-side discovery channel; wherein the first terminal identifies the MAC CE by an LCID in a MAC Protocol Data Unit (PDU) subheader.

Fig. 4 is a flowchart of another information transmission method according to an embodiment of the present invention. As shown in fig. 4, the information transmission method provided in this embodiment includes the following steps:

step S31: the network control unit obtains any one or a combination of the following: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or the network control unit allocates terminal identification information or terminal identification index number information of the first terminal;

step S32: the network control unit sends or receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal.

In this embodiment, the network control unit may obtain any one or a combination of the following: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the network control unit sends at least one item or a plurality of items of the acquired information;

alternatively, the network control unit obtains any one or a combination of: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the network control unit distributes terminal identification information or terminal identification index number information of the first terminal; the network control unit sends at least one or more acquired information and the allocated information, or the network control unit sends at least one or more acquired information, or the network control unit sends the allocated information; for example, the network control unit may obtain any one or a combination of: the data of the first terminal, the control information of the first terminal, the bearing identification information of the first terminal, the terminal identification information or the terminal identification index number information of the first terminal are distributed by the network control unit; the network control unit sends at least one item or a plurality of items of the acquired information and the distributed information;

or the network control unit allocates the terminal identification information or the terminal identification index number information of the first terminal, and the network control unit sends the allocated information;

alternatively, the network control unit may obtain any one or a combination of: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; the network control unit receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal; thus, according to one or more items of the acquired information, the network control unit may identify the terminal and/or the bearer to which the received data or control information belongs, or the network control unit may identify the terminal and/or the bearer to which the received data or control information belongs;

or the network control unit allocates terminal identification information or terminal identification index number information of the first terminal; the network control unit receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal; thus, according to the allocated information, the network control unit may identify the terminal and/or the bearer to which the received data or control information belongs, or the network control unit may identify the terminal and/or the bearer to which the received data or control information belongs;

alternatively, the network control unit may obtain any one or a combination of: the network control unit distributes the terminal identification information or the terminal identification index number information of the first terminal; the network control unit receives at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal and bearing identification information of the first terminal; thus, according to at least one or more of the obtained information and/or the allocated information, the network control unit may identify the terminal and/or the bearer to which the received data or control information belongs, or the network control unit may identify the terminal and/or the bearer to which the received data or control information belongs.

In this embodiment, the first terminal may include: a remote terminal, a wearable terminal, a portable terminal, or a bandwidth limited terminal. The network control unit may be a base station.

In step S31, the acquiring, by the network control unit, the terminal identification index number information of the first terminal may include:

the network control unit receives an identifier list of a first terminal sent by a relay, wherein the sequence of the first terminal in the identifier list represents a terminal identifier index number of the first terminal, or the identifier list indicates a corresponding relation between a terminal identifier of the first terminal and the terminal identifier index number.

In step S32, the network control unit may send at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index information of the first terminal, and the bearer identification information of the first terminal by at least one of:

indicating which terminal the control information carried in the PDCP packet belongs to through terminal identification information or terminal identification index number information in a PDCP layer subheader;

indicating which terminal and/or bearer the control information carried in the PDCP packet belongs to through bearer identification information in a subheader of the PDCP layer;

indicating which terminal the RRC message comes from through terminal identification information or terminal identification index number information in the RRC message;

indicating which terminal and/or bearer the RRC message comes from through bearer identification information in the RRC message;

indicating which terminal the control information carried in the MAC CE belongs to through terminal identification information or terminal identification index number information in an MAC sub-header corresponding to the MAC CE;

indicating whether the control information carried by the MAC CE is the forwarded control information or not through an MAC sub-header corresponding to the MAC CE; if the control information belongs to the forwarded control information, carrying terminal identification information or terminal identification index number information in the MAC CE;

Optionally, the method provided in this embodiment further includes: and the network control unit sends RRC reconfiguration information or system information carrying temporary terminal identification configuration information to a relay, wherein the temporary terminal identification configuration information comprises indication information of a temporary terminal identification configuration range.

The present application is illustrated below by means of a number of examples.

Example one

In this embodiment, after receiving the data or control information of the first terminal, the relay sends the data or control information of the first terminal to a network side, such as a base station. As shown in fig. 5, the method provided by this embodiment includes the following steps:

step 101: the relay obtains any one or a combination of: data, control information, terminal identification index information and bearing identification information of the first terminal;

step 102: the relay sends any one or a combination of the following to the base station: data, control information, terminal identification index number information and bearing identification information of the first terminal.

In this embodiment, the first terminal includes: a remote terminal, a wearable terminal, a portable terminal, or a bandwidth limited terminal.

Wherein the control information comprises at least one of: RRC message, MAC layer (Medium Access Control) Control element information (CE), and system message.

Wherein, the terminal identification information of the first terminal is any one or combination of the following: a terminal cell radio network temporary identity (C-RNTI), a layer two terminal identity (e.g., a ProSe UE identity), a newly defined terminal identity, a layer two identity of a proximity service terminal, a proximity service terminal identity, an S temporary mobile subscriber identity (S-TMSI), an international mobile equipment identity (IMSI), a Globally Unique Temporary Identity (GUTI);

the bearing identification information is any one or combination of the following: EPS bearing identification, radio bearing identification, S1 bearing identification, LCID, new defined bearing identification; or, the bearer identification information includes combination information for identifying the first terminal and the bearer, where the bearer is a radio bearer or an S1 bearer or an EPS bearer of the first terminal.

In step 101, the relay acquiring the terminal identification information of the first terminal includes:

a relay receives a relay discovery message or a relay discovery request message of a first terminal, wherein the relay discovery message or the relay discovery request message carries terminal identification information of the first terminal;

or, the relay receives a connection establishment request message or a direct communication request (direct communication request) message of the first terminal, where the connection establishment request message or the direct communication request message carries terminal identification information of the first terminal;

or after the relay sends the terminal identification request message, receiving a terminal identification response message carrying the terminal identification of the first terminal.

Optionally, after the relay obtains the terminal identifier information of one or more first terminals, the relay sends the identifier list of the first terminals to the base station. I.e. the identity list comprises one or more first terminals.

Optionally, the sequence of the first terminal in the identifier list represents a terminal identifier index number of the first terminal; or, the identifier list of the first terminal indicates the corresponding relationship between each terminal identifier and the terminal identifier index number.

In step 102, the relay sends at least one of data, control information, terminal identification index number information, and bearer identification information of the first terminal to the base station in at least one of the following manners:

the PDCP layer subheader comprises terminal identification information or terminal identification index number information, and the terminal identification information or the terminal identification index number information is used for indicating which terminal the control information carried in the PDCP packet belongs to;

a MAC subheader (subheader) corresponding to a MAC CE includes terminal identification information or terminal identification index number information, and the terminal identification information or terminal identification index number information is used to indicate to which terminal the control information carried in the MAC CE belongs;

Example two

In this embodiment, after receiving the data or control information of the first terminal from the network side (e.g., a base station), the relay forwards the data or control information of the first terminal to the first terminal. As shown in fig. 6, the method provided by this embodiment includes the following steps:

step 201: the relay obtains any one or a combination of: data, control information, terminal identification index number information and bearing identification information of the first terminal;

step 202: the relay sends any one or a combination of the following to the first terminal: data, control information, terminal identification index number information and bearing identification information of the first terminal.

In step 201, the relay acquiring the terminal identification information of the first terminal includes:

or after the relay sends the terminal identification request message, receiving a terminal identification response message carrying the terminal identification information of the first terminal.

Optionally, after the relay obtains the terminal identifier information of one or more first terminals, the relay sends the identifier list of the first terminals to the base station.

Optionally, the sequence of the first terminal in the identifier list represents a terminal identifier index number of the first terminal; or, the corresponding relation between each terminal identifier and the terminal identifier index number is indicated in the identifier list of the first terminal.

In step 202, the relay sends the control information of the first terminal to the first terminal by: and the relay transmits the MAC CE of the first terminal to the first terminal through a single-side shared channel (SL-SCH), a single-side control channel or a single-side discovery channel.

Optionally, the relay identifies the MAC CE by LCID in the MAC PDU subheader.

Optionally, the MAC CE type corresponding to the LCID value in the downlink shared data channel in the relevant protocol is used along with the MAC CE type corresponding to the LCID value in the different LCID values.

Optionally, the sending, by the relay, the control information of the first terminal to the first terminal includes:

the relay transmits a system message to a first terminal through a SL-MIB (single-side-master system message);

or, the relay sends a system message to the first terminal through one or more discovery messages;

or, the relay indicates the resource configuration information of the system message in the SL-MIB, and then periodically broadcasts and sends the system message through a unilateral communication channel;

or, after the relay receives a direct communication request message (direct communication request) sent by the first terminal, the relay sends the system message to the first terminal through a direct communication response message (direct communication accept).

Wherein the resource configuration information comprises at least one of:

group identification;

a single-sided discovery or single-sided communication resource indication;

a frame offset;

shifting a subframe;

a resource pattern or bitmap;

indexing the resources;

single-side discovery transmitting or receiving resource pool;

single-side discovery transmitting or receiving resource pool index;

Optionally, the system message includes: information related to access barring (ac-barring) in the SIB2, timer setting information of the UE, bearer optimization indication information (cplot-EPS-optimationinfo), and the like; including information related to cell access in SIB1, such as PLMN (Public Land Mobile Network) list, TAC, cell ID (cell identity), terminal access indication information (category0Allowed-r12) whether level 0 is Allowed, information related to power control (such as pmax, po, alpha), and the like.

EXAMPLE III

In this embodiment, the first terminal does not obtain the terminal identifier from the network side before accessing the relay, so the first terminal sends the connection establishment request message to the relay, and then the relay allocates the temporary terminal identifier to the first terminal, or the relay directly uses a specific identifier or a null identifier to identify the first terminal, and forwards the connection establishment request message, and requests the network side to allocate the terminal identifier to the first terminal.

As shown in fig. 7, the present embodiment is explained as follows:

step 301: a relay receives a connection establishment request message of a first terminal;

step 302: the relay distributes a temporary terminal identification for the first terminal and sends a connection establishment request message of the first terminal and temporary terminal identification information to a network side;

or, the relay uses the empty identifier or the specific identifier to identify the first terminal which is not allocated with the terminal identifier, and sends the connection establishment request message of the first terminal and the empty identifier or the specific identifier to the network side;

step 303: the relay sends the connection establishment request message of the first terminal and a temporary terminal identifier or an empty identifier or a specific identifier to a network side;

step 304: after receiving the connection establishment request message and the temporary terminal identifier or the null identifier or the specific identifier, the network side allocates a terminal identifier (such as C-RNTI) for the first terminal and sends the terminal identifier to the relay through a connection establishment response message;

step 305: the relay sends the connection establishment response message carrying the terminal identifier (such as C-RNTI) of the first terminal to the first terminal; the first terminal obtains the terminal identification.

Thereafter, the relay may perform a procedure of acquiring the terminal identifier of the first terminal. The process of the terminal acquiring the terminal identifier of the first terminal may refer to the description in the first embodiment and the second embodiment, and therefore, the description is omitted here.

Optionally, before the relay allocates the temporary terminal identifier to the first terminal, the relay receives temporary terminal identifier configuration information, where the temporary terminal identifier configuration information includes indication information of a temporary terminal identifier configuration range. Optionally, the temporary terminal identifier configuration information is carried by an RRC reconfiguration message; or carried by system messages.

Example four

In this embodiment, the first terminal sends data or control information to the relay. The first terminal may be a remote terminal, a wearable terminal, a portable terminal, or a bandwidth-limited terminal.

As shown in fig. 8, the present embodiment is explained as follows:

step 401: the method comprises the steps that a first terminal obtains terminal identification information and/or bearing identification information of the first terminal;

step 402: the first terminal sends any one or a combination of: data, control information, terminal identification information, and terminal bearer identification information of the first terminal.

In step 401, the obtaining, by the first terminal, the terminal identification information of the first terminal may include:

receiving terminal identification information distributed by a network side (a base station or a core network element); alternatively, the first and second electrodes may be,

and receiving the temporary terminal identification message sent by the relay.

In step 402, the sending, by the first terminal, the terminal identification information of the first terminal may include:

or sending a connection establishment request message or a direct communication request (direct communication request) message, wherein the connection establishment request message or the direct communication request message carries identification information of the first terminal;

In step 402, the transmitting, by the first terminal, the data and/or control information of the first terminal may include:

the first terminal transmits the MAC CE to the relay through a single-sided shared channel (SL-SCH) or a single-sided control channel MAC CE.

Optionally, the first terminal identifies the MAC CE by LCID in a subheader of the MAC PDU.

EXAMPLE five

The embodiment provides a flow of uplink communication. In this embodiment, the first terminal is a Remote UE, the Relay is a Relay UE, and the network side (network control unit) is a base station. And after finding the Relay UE, the Remote UE is connected with the Relay UE and forwards the MAC CE to the base station through the Relay UE. Wherein the MAC CE may include: for example, when a Remote UE wants to apply for resources for PC5 communication, a single-sided communication Buffer Status Report (SL-BSR), a Power Headroom Report (PHR), and so on need to be sent.

Suppose UE-A is a Remote UE and UE-B is a Relay UE. Referring to fig. 9, the description of the present embodiment is as follows:

step 501, a Remote UE (UE-A) and a Relay UE (UE-B) establish connection;

step 502, Relay UE sends a remote terminal list to a base station;

after the Remote UE selects and accesses the Remote UE, the Remote UE acquires the terminal ID of the Remote UE and determines that the Remote UE needs AS layer forwarding, and the Remote UE adds the terminal ID of the Remote UE to a Remote terminal list which needs AS layer forwarding and sends the list to the base station. The base station can know which Remote UEs need which Relay UEs to forward.

Step 503, after the Remote UE (UE-a) generates the MAC CE, the MAC CE is sent to UE-B through the PC5 interface.

Wherein, the UE-A transmits the MAC CE to the UE-B through the MAC CE of the single-side shared channel (SL-SCH).

And the UE-A transmits the MAC CE as the MAC CE of the SL-SCH, and marks the LCID in the MAC subheader corresponding to the MAC CE. MAC format of SL-SCH see FIG. 10.

Optionally, the UE-a marks the MAC CE through the LCID in the subheader of the MAC PDU, and the MAC CE type corresponding to the different LCID values follows the MAC CE type corresponding to the LCID value in the uplink shared data channel in the relevant protocol.

Step 504, UE-B sends the MAC CE of UE-A to the base station.

When the Relay UE (UE-B) sends the MAC CE of the Remote UE (UE-A) to the base station, the Relay UE (UE-B) also sends at least one of the following information to the base station together: a terminal identifier or a terminal identifier index number of Remote UE (UE-A), a terminal identifier or a terminal identifier index number of Relay UE (UE-B), and a bearer identifier.

Optionally, referring to fig. 11, a terminal identifier or a terminal identifier index number in a MAC subheader (subheader) corresponding to a MAC CE indicates to which terminal the control information carried in the MAC CE belongs.

Or, referring to fig. 12 and fig. 13, the MAC subheader corresponding to the MAC CE indicates whether the control information carried by the MAC CE belongs to a sending terminal (Relay UE) or is forwarded control information. And if the control information carried by the MAC CE belongs to the forwarded control information, carrying a terminal identifier or a terminal identifier index number in the MAC CE.

Alternatively, the terminal identification or the terminal identification index number is marked in the MAC CE.

After receiving the control information sent by the Relay UE, the base station can determine to which terminal the control information belongs.

Optionally, the terminal identifier includes an identifier of a Relay UE and/or an identifier of a Remote UE.

Optionally, before the Relay UE sends the terminal identifier index of the Remote UE to the base station, the method further includes: and the Relay UE sends the identification list of the connected Remote UE to the base station. The sequence of the Remote UE in the identifier list represents the terminal identifier index number of the Remote UE, or indicates the corresponding relationship between the terminal identifier and the terminal identifier index number in the identifier list.

EXAMPLE six

The present embodiment provides a downlink communication procedure. In this embodiment, the first terminal is a Remote UE, the Relay is a Relay UE, and the network side is a base station. And after finding the Relay UE, the Remote UE connects with the Relay UE and receives the MAC CE sent by the base station through the Relay UE. The MAC CE may include Discontinuous Reception (DRX) indication, broadcast channel (MCH) scheduling information, and the like.

Suppose UE-A is a Remote UE and UE-B is a Relay UE. Referring to fig. 14, the description of the present embodiment is as follows:

601, establishing connection between Remote UE (UE-A) and Relay UE (UE-B);

step 602, Relay UE sends a remote terminal list to a base station;

after the Remote UE selects and accesses the Remote UE, the Remote UE acquires the terminal ID of the Remote UE and determines that the Remote UE needs to perform AS layer forwarding, and the Remote UE adds the terminal ID of the Remote UE to a terminal Remote list which needs to perform AS layer forwarding and sends the list to the base station. The base station can know which Remote UEs need which Relay UEs to forward.

Optionally, the base station receives an identifier list including one or more Remote UEs sent by the Relay UE, where an order of the Remote UEs in the identifier list is a terminal identifier index of the Remote UEs, or a correspondence between the terminal identifier and the terminal identifier index is indicated in the identifier list.

Step 603, the base station sends the MAC CE of the Remote UE to the Relay UE.

Wherein, the base station sends MAC CE of Remote UE (UE-A) to relay UE connected with the Remote UE.

Optionally, the sending, by the base station, the MAC CE of the Remote UE to the Relay UE includes:

the base station also sends the terminal identification or the terminal identification index number and the MAC CE to the Relay UE.

Optionally, the base station indicates, through a terminal identifier or a terminal identifier index number in a MAC sub header corresponding to the MAC CE, to which terminal the control information carried in the MAC CE belongs.

Or, the MAC subheader corresponding to the MAC CE indicates whether the control information carried by the MAC CE belongs to a sending terminal (Relay UE) or is forwarded control information. And if the MAC CE belongs to the forwarded control information, carrying a terminal identifier or a terminal identifier index number in the MAC CE.

Step 604, the Relay UE sends the MAC CE of the Remote UE to the Remote UE.

Wherein, the Relay UE (UE-B) transmits the MAC CE to the Remote UE (UE-A) through the MAC CE of the single-side shared channel (SL-SCH).

The Relay UE sends the MAC CE as the MAC CE of the SL-SCH, and marks the LCID in the MAC subheader corresponding to the MAC CE.

Optionally, the Relay UE marks the MAC CE through the LCID in the subheader of the MAC PDU, and the MAC CE types corresponding to different LCID values follow the MAC CE types corresponding to the LCID values in the downlink shared data channel in the relevant protocol.

EXAMPLE seven

In this embodiment, the first terminal is a Remote UE, the Relay is a Relay UE, and the network side is a base station. The Relay UE forwards a System message to the Remote UE, wherein the System message includes, for example, Information related to access barring (ac-barring) in SIB ((System Information Block) 2, timer setting Information of the UE, acdc barring related Information, cIoT-EPS-OptimationInfo, etc., and includes Information related to cell access in SIB1, such as PLMN (Public Land Mobile Network) list, TAC, cell ID (cell identifier), category0 allocated-r 12, power control related messages, such as pmax, po, alpha related Information, etc.

Referring to fig. 15, the present embodiment is explained as follows:

step 701, the base station sends a system message to Relay UE;

step 702, Relay UE sends system message to Remote UE through SL-MIB (single-side-primary system message);

or the Relay UE sends the system message to the Remote UE through one or more discovery messages;

or, the Relay UE indicates the resource configuration information of the system message in the SL-MIB, and then periodically broadcasts and sends the system message through a unilateral communication channel;

or, after the Relay UE receives the direct communication request message (direct communication request) sent by the Remote UE, the Relay UE sends the system message to the Remote UE through the direct communication response message (direct communication accept).

Wherein the resource configuration information comprises at least one of:

group identification;

a single-sided discovery or single-sided communication resource indication;

a frame offset;

shifting a subframe;

a resource pattern or bitmap;

indexing the resources;

single-side discovery transmitting or receiving resource pool;

single-side discovery transmitting or receiving resource pool index;

The first to seventh embodiments may be combined with each other, and the present application is not limited thereto.

Fig. 16 is a schematic diagram of an information transmission apparatus according to an embodiment of the present invention. As shown in fig. 16, the information transmission apparatus provided in this embodiment, applied to a relay, includes:

a first sending module, configured to send at least one of the data of the first terminal, the control information of the first terminal, the terminal identifier index information of the first terminal, and the bearer identifier information of the first terminal to a network control unit or the first terminal.

the bearer identification information comprises any one or a combination of: EPS bearing identification, radio bearing identification, S1 bearing identification, LCID, new defined bearing identification; or, the bearer identification information includes combination information for identifying the first terminal and a bearer, where the bearer is a radio bearer or an S1 bearer or an EPS bearer of the first terminal.

Optionally, the first obtaining module is configured to obtain the terminal identifier information of the first terminal, and includes:

receiving a relay discovery message or a relay discovery request message of a first terminal, wherein the relay discovery message or the relay discovery request message carries terminal identification information of the first terminal;

or receiving a connection establishment request message or a direct communication request message of a first terminal, wherein the connection establishment request message or the direct communication request message carries terminal identification information of the first terminal;

or after sending the terminal identification request message, receiving a terminal identification response message carrying the terminal identification information of the first terminal.

Optionally, the first allocating module is configured to allocate terminal identification information of the first terminal, and includes:

receiving a connection establishment request message or a direct communication request message of a first terminal;

and allocating a temporary identifier for the first terminal.

allocating a temporary identifier to the first terminal, or allocating an empty identifier or a specific identifier to the first terminal, wherein the empty identifier or the specific identifier is used for indicating that the terminal identifier of the first terminal is empty;

sending a connection establishment request message or a direct communication request message of the first terminal and a temporary identifier or an empty identifier or a specific identifier to a network side;

and receiving a connection establishment response message from a network side, wherein the connection establishment response message carries a terminal identifier distributed to the first terminal by the network side.

Optionally, the first allocating module is further configured to receive temporary identifier configuration information before allocating a temporary identifier to the first terminal, where the temporary identifier configuration information includes indication information of a temporary identifier configuration range.

Optionally, the temporary identifier configuration information is carried by an RRC reconfiguration message or a system message.

Optionally, the apparatus further comprises: a second sending module, configured to send an identifier list of the first terminal to a network control unit after the first obtaining module obtains the terminal identifier information of the first terminal, where an order of the first terminal in the identifier list represents an identifier index number of the first terminal; or, the corresponding relation between each terminal identifier and the terminal identifier index number is indicated in the identifier list. Wherein, the identification list comprises one or more first terminals.

Optionally, the first sending module is configured to send at least one of data of the first terminal, control information of the first terminal, terminal identification index information of the first terminal, and bearer identification information of the first terminal to the network control unit or the first terminal in at least one of the following manners:

Optionally, the first sending module is configured to send the control information of the first terminal to the first terminal by:

and sending the MAC CE of the first terminal to the first terminal through a single-side shared channel (SL-SCH), a single-side control channel or a single-side discovery channel, wherein the MAC CE is marked through an LCID in a MAC PDU subheader.

transmitting a system message to a first terminal through a single-sided master system message (SL-MIB);

or sending the system message to the first terminal through one or more discovery messages;

or, the resource configuration information of the system message is indicated in the SL-MIB, and then the system message is periodically broadcast and sent through a unilateral communication channel;

or after receiving the direct communication request message sent by the first terminal, sending the system message to the first terminal through the direct communication response message.

Optionally, the resource configuration information includes at least one of:

group identification;

a single-sided discovery or single-sided communication resource indication;

a frame offset;

shifting a subframe;

a resource pattern or bitmap;

indexing the resources;

single-side discovery transmitting or receiving resource pool;

single-side discovery transmitting or receiving resource pool index;

Fig. 17 is a schematic diagram of another information transmission apparatus according to an embodiment of the present invention. As shown in fig. 17, the information transmission apparatus provided in this embodiment is applied to a first terminal (for example, a remote terminal, a wearable terminal, a portable terminal, or a bandwidth-limited terminal), and includes:

a first transmission module, configured to send or receive at least one of data of the first terminal, control information of the first terminal, terminal identification index information of the first terminal, and bearer identification information of the first terminal.

Optionally, the control information includes at least one of: RRC message, MAC CE, system message.

Optionally, the second obtaining module is configured to obtain the terminal identification information of the first terminal in the following manner:

and receiving the temporary terminal identification message sent by the relay.

Optionally, the first transmission module is configured to send the terminal identifier of the first terminal by:

Optionally, the first transmission module is configured to send the control information of the first terminal by:

and transmitting the MAC CE to the relay through a single-side shared channel (SL-SCH) or a single-side control channel or a single-side discovery channel, wherein the MAC CE is identified through LCID in a MAC PDU subheader.

Fig. 18 is a schematic diagram of another information transmission apparatus according to an embodiment of the present invention. As shown in fig. 18, the information transmission apparatus provided in this embodiment is applied to a network control unit (e.g., a base station), and includes:

a second transmission module, configured to send or receive at least one of the data of the first terminal, the control information of the first terminal, the terminal identifier index information of the first terminal, and the bearer identifier information of the first terminal.

In this embodiment, the first terminal may include: a remote terminal, a wearable terminal, a portable terminal, or a bandwidth limited terminal.

Optionally, the third obtaining module is configured to obtain the terminal identifier index information of the first terminal in the following manner:

and receiving an identifier list of the first terminal sent by the relay, wherein the sequence of the first terminal in the identifier list represents the terminal identifier index number of the first terminal, or the identifier list indicates the corresponding relation between the terminal identifier of the first terminal and the terminal identifier index number.

Optionally, the second transmission module is configured to send at least one of data of the first terminal, control information of the first terminal, terminal identification index information of the first terminal, and bearer identification information of the first terminal in at least one manner:

Optionally, the second transmission module is further configured to send an RRC reconfiguration message or a system message carrying temporary terminal identifier configuration information to a relay, where the temporary terminal identifier configuration information includes indication information of a temporary terminal identifier configuration range.

Fig. 19 is a schematic diagram of an information transmission system according to an embodiment of the present invention. As shown in fig. 19, the information transmission system provided in this embodiment includes: a first terminal, a relay and a network control unit;

the relay is further configured to send at least one of data of the first terminal, control information of the first terminal, terminal identification index information of the first terminal, and bearer identification information of the first terminal to a network control unit or the first terminal.

In this embodiment, the first terminal may include: a remote terminal, a wearable terminal, a portable terminal, or a bandwidth limited terminal. The Relay may include a Relay terminal (Relay UE) or a base station having a Relay function. The network control unit may be a base station.

In this embodiment, the first terminal is configured to obtain any one or a combination of the following: the terminal identification information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal;

the relay is further configured to receive any one or a combination of the following sent by the first terminal: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal, and the bearing identification information of the first terminal.

In this embodiment, the network control unit is configured to obtain any one or a combination of the following: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal; and/or allocating terminal identification information or terminal identification index number information of the first terminal;

the relay is further configured to receive any one or a combination of the following sent by the network control unit: the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal, and the bearing identification information of the first terminal.

Optionally, the network control unit is further configured to send an RRC reconfiguration message or a system message carrying temporary terminal identifier configuration information to the relay, where the temporary terminal identifier configuration information includes indication information of a temporary terminal identifier configuration range.

The processing flow of the above device and system can refer to the above method embodiments, and therefore, the details are not described herein.

In addition, an embodiment of the present invention further provides a relay, including the information transmission apparatus according to the embodiment shown in fig. 16.

An embodiment of the present invention further provides a terminal, including the information transmission apparatus according to the embodiment shown in fig. 17.

An embodiment of the present invention further provides a base station, including the information transmission apparatus in the embodiment shown in fig. 18.

Optionally, when the instruction is executed by the processor, at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal, and the bearer identification information of the first terminal is sent to a network control unit by:

Optionally, when the instructions are executed by the processor, the control information of the first terminal is sent to the first terminal by:

and sending the MAC CE of the first terminal to the first terminal through the SL-SCH, a single-side control channel or a single-side discovery channel, wherein the MAC CE is marked through LCID in a subheader of the MAC PDU.

transmitting control information to a first terminal through a single-sided master system message (SL-MIB);

or, sending the control information to the first terminal through one or more discovery messages;

or, the resource configuration information of the control information is indicated in the SL-MIB, and then the control information is periodically broadcast and transmitted through a unilateral communication channel;

or after receiving a direct communication request message sent by the first terminal, sending the control information to the first terminal through a direct communication response message.

and sending or receiving at least one of the data of the first terminal, the control information of the first terminal, the terminal identification index number information of the first terminal and the bearing identification information of the first terminal.

Optionally, when the instructions are executed by the processor, the terminal identification information of the first terminal is obtained by:

receiving a temporary terminal identification message sent by a relay;

wherein the terminal identification information includes any one or a combination of: a terminal cell radio network temporary identity (C-RNTI), a layer two terminal identity, a newly defined terminal identity, a near service terminal layer two identity, a near service terminal identity, an S-temporary mobile subscriber identity (S-TMSI), an international mobile equipment identity (IMSI), a Globally Unique Temporary Identity (GUTI).

Optionally, the instructions, when executed by the processor, send the terminal identification information of the first terminal by:

Optionally, the instructions, when executed by the processor, send the control information of the first terminal by:

the MAC CE is sent to a relay through a single-side shared channel (SL-SCH), a single-side control channel or a single-side discovery channel; wherein the MAC CE is identified by the LCID in the MAC PDU subheader.

Optionally, when the instructions are executed by the processor, at least one of data of the first terminal, control information of the first terminal, terminal identification index number information of the first terminal, and bearer identification information of the first terminal is sent by at least one of:

Optionally, when executed by the processor, the instructions further perform the following:

and sending an RRC reconfiguration message or a system message carrying temporary terminal identifier configuration information to a relay, wherein the temporary terminal identifier configuration information comprises indication information of a temporary terminal identifier configuration range.

The above-described processing flows of various electronic devices may refer to the foregoing method embodiments, and therefore, are not described herein again.

In addition, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the information transmission method applied to a relay is implemented.

An embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the information transmission method applied to the first terminal is implemented.

An embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, the information transmission method applied to a network control unit is implemented.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing associated hardware (e.g., a processor) to perform the steps, and the program may be stored in a computer readable storage medium, such as a read only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, the modules/units in the above embodiments may be implemented in hardware, for example, by an integrated circuit, or may be implemented in software, for example, by a processor executing programs/instructions stored in a memory to implement the corresponding functions. The present application is not limited to any specific form of hardware or software combination.

The foregoing shows and describes the general principles and features of the present application, together with the advantages thereof. The present application is not limited to the above-described embodiments, which are described in the specification and drawings only to illustrate the principles of the application, but also to provide various changes and modifications within the spirit and scope of the application, which are within the scope of the claimed application.

Claims

1. An information transmission method, comprising:

the relay distributes the terminal identification information or terminal identification index number information of the first terminal;

the relay sends at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal to a network control unit or the first terminal;

the relay sends at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal to a network control unit in at least one of the following manners:

the sub-header of the packet data convergence protocol PDCP layer comprises terminal identification information or terminal identification index number information, and the terminal identification information or the terminal identification index number information is used for indicating which terminal the control information carried in the PDCP packet belongs to;

the radio resource control RRC message comprises terminal identification information or terminal identification index number information, and the terminal identification information or the terminal identification index number information is used for indicating which terminal the RRC message comes from;

the MAC sub-header corresponding to the MAC control unit information CE of the medium access control layer comprises terminal identification information or terminal identification index number information, and the terminal identification information or the terminal identification index number information is used for indicating which terminal the control information carried in the MAC CE belongs to;

2. The method of claim 1,

the terminal identification information of the first terminal includes any one or a combination of: the system comprises a terminal cell radio network temporary identifier C-RNTI, a layer two terminal identifier, a newly defined terminal identifier, a layer two identifier of an adjacent service terminal, an adjacent service terminal identifier, an S temporary mobile subscriber identity S-TMSI, an international mobile equipment identity IMSI and a global unique temporary identifier GUTI.

3. The method of claim 1, wherein the relaying assigning the terminal identification information of the first terminal comprises:

and the relay allocates a temporary terminal identifier for the first terminal.

4. The method of claim 1, wherein the relaying assigning the terminal identification information of the first terminal comprises:

5. The method of claim 3 or 4, wherein before the relay assigns the temporary terminal identity to the first terminal, the method further comprises: the relay receives temporary terminal identification configuration information, wherein the temporary terminal identification configuration information comprises indication information of a temporary terminal identification configuration range.

6. The method of claim 5, wherein the temporary terminal identity configuration information is carried in a Radio Resource Control (RRC) reconfiguration message or in a system message.

7. An information transmission method, comprising:

the network control unit obtains any one or a combination of the following: terminal identification information of the first terminal, and terminal identification index number information of the first terminal; and/or the network control unit allocates terminal identification information or terminal identification index number information of the first terminal;

the network control unit sends or receives at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal;

the network control unit sends at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal in at least one of the following ways:

indicating which terminal the control information carried in the PDCP packet belongs to through terminal identification information or terminal identification index number information in a packet data convergence protocol PDCP layer subheader;

indicating which terminal the control information carried in the MAC CE belongs to through terminal identification information or terminal identification index number information in an MAC sub-header corresponding to MAC control unit information CE of a medium access control layer;

8. The method of claim 7, wherein the network control unit obtaining the terminal identifier index information of the first terminal comprises:

9. The method of claim 7, further comprising: and the network control unit sends a Radio Resource Control (RRC) reconfiguration message or a system message carrying temporary terminal identifier configuration information to a relay, wherein the temporary terminal identifier configuration information comprises indication information of a temporary terminal identifier configuration range.

10. An information transmission apparatus applied to a relay, comprising:

the first distribution module is used for distributing terminal identification information or terminal identification index number information of the first terminal;

a first sending module, configured to send at least one of the terminal identifier information of the first terminal and the terminal identifier index number information of the first terminal to a network control unit or the first terminal;

the first sending module is configured to send at least one of the terminal identifier information of the first terminal and the terminal identifier index number information of the first terminal to a network control unit in at least one of the following manners:

11. The apparatus of claim 10,

12. The apparatus of claim 10, wherein the first allocating module is configured to allocate terminal identification information of the first terminal, and includes:

and distributing a temporary terminal identification for the first terminal.

13. The apparatus of claim 10, wherein the first allocating module is configured to allocate terminal identification information of the first terminal, and includes:

allocating a temporary terminal identifier to the first terminal, or allocating an empty identifier or a specific identifier to the first terminal, wherein the empty identifier or the specific identifier is used for indicating that the terminal identifier of the first terminal is empty;

sending a connection establishment request message or a direct communication request message of the first terminal and a temporary terminal identifier or an empty identifier or a specific identifier to a network side;

14. The apparatus of claim 12 or 13, wherein the first allocating module is further configured to receive temporary terminal identifier configuration information before allocating a temporary terminal identifier to the first terminal, where the temporary terminal identifier configuration information includes information indicating a configuration range of the temporary terminal identifier.

15. The apparatus of claim 14, wherein the temporary terminal identity configuration information is carried in a Radio Resource Control (RRC) reconfiguration message or in a system message.

16. The apparatus of claim 10, further comprising: the second sending module is used for sending the identifier list of the first terminal to the network control unit after the first obtaining module obtains the terminal identifier information of the first terminal, wherein the sequence of the first terminal in the identifier list represents the terminal identifier index number of the first terminal; or, the corresponding relation between each terminal identifier and the terminal identifier index number is indicated in the identifier list.

17. An information transmission device applied to a network control unit comprises:

a third obtaining module, configured to obtain any one or a combination of: terminal identification information of the first terminal, and terminal identification index number information of the first terminal; and/or, the second allocating module is used for allocating the terminal identification information or the terminal identification index number information of the first terminal;

a second transmission module, configured to send or receive at least one of terminal identifier information of the first terminal and terminal identifier index number information of the first terminal;

the second transmission module is configured to send at least one of the terminal identifier information of the first terminal and the terminal identifier index number information of the first terminal in at least one manner:

18. The apparatus of claim 17, wherein the third obtaining module is configured to obtain the terminal identifier index information of the first terminal by:

19. The apparatus of claim 17, wherein the second transmission module is further configured to send a radio resource control RRC reconfiguration message or a system message carrying temporary terminal identity configuration information to a relay, where the temporary terminal identity configuration information includes information indicating a configuration range of a temporary terminal identity.

20. An information transmission system comprising: a first terminal, a relay and a network control unit,

the relay is used for distributing terminal identification information or terminal identification index number information of the first terminal;

the relay is further configured to send at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal to a network control unit or the first terminal;

21. The system according to claim 20, wherein the first terminal is configured to obtain any one or a combination of: terminal identification information of the first terminal, and terminal identification index number information of the first terminal.

22. The system according to claim 20, wherein the network control unit is configured to obtain any one or a combination of: terminal identification information of the first terminal, and terminal identification index number information of the first terminal; and/or allocating terminal identification information or terminal identification index number information of the first terminal;

the relay is further configured to receive any one or a combination of the following sent by the network control unit: the terminal identification information of the first terminal, and the terminal identification index number information of the first terminal.

23. The system according to claim 22, wherein the network control unit is further configured to send a radio resource control, RRC, reconfiguration message or a system message carrying temporary terminal identity configuration information to the relay, where the temporary terminal identity configuration information includes indication information of a temporary terminal identity configuration range.

24. A relay, characterized by comprising an information transmission device according to any one of claims 10 to 16.

25. A base station, characterized in that it comprises an information transmission device according to any one of claims 17 to 19.

26. An electronic device comprising a processor and a memory storing processor-executable instructions that, when executed by the processor, perform operations comprising:

allocating terminal identification information or terminal identification index number information of a first terminal;

sending at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal to a network control unit or the first terminal;

when the instructions are executed by the processor, sending at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal to a network control unit by:

27. An electronic device comprising a processor and a memory storing processor-executable instructions that, when executed by the processor, perform operations comprising:

obtaining any one or combination of: terminal identification information of the first terminal, and terminal identification index number information of the first terminal; and/or allocating terminal identification information or terminal identification index number information of the first terminal;

sending or receiving at least one of terminal identification information of the first terminal and terminal identification index number information of the first terminal;

when executed by a processor, the instructions transmit at least one of the terminal identification information of the first terminal and the terminal identification index number information of the first terminal by at least one of:

28. The electronic device of claim 27, wherein the instructions, when executed by the processor, further perform the following:

and sending a Radio Resource Control (RRC) reconfiguration message or a system message carrying temporary terminal identifier configuration information to a relay, wherein the temporary terminal identifier configuration information comprises indication information of a temporary terminal identifier configuration range.