CN113038628B

CN113038628B - Relay parameter configuration method, terminal equipment and network equipment

Info

Publication number: CN113038628B
Application number: CN201911252451.3A
Authority: CN
Inventors: 鲍炜; 杨晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2023-04-25
Anticipated expiration: 2039-12-09
Also published as: CN113038628A; WO2021115252A1

Abstract

The invention discloses a relay parameter configuration method, terminal equipment and network side equipment. Wherein the method is performed by a network side device, the method comprising: and transmitting the relay parameter to a terminal device, wherein the terminal device comprises: at least one of a relay terminal device and a remote terminal device; wherein the relay parameters include: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

Description

Relay parameter configuration method, terminal equipment and network equipment

Technical Field

The present invention relates to the field of communications, and in particular, to a method for configuring relay parameters, a terminal device, and a network side device.

Background

In the related art, in the case that the coverage of a base station is limited, some terminal devices (UEs) covering weaker areas may find UEs capable of providing a relay mechanism to provide data forwarding services for the UEs. Among them, the UE providing the relay mechanism may be referred to as a relay UE (relay UE), and the UE requesting the relay service may be referred to as a remote UE (remote UE).

For example, in fig. 1, the remote UE needs to transmit data with the network side, but because of poor coverage, the relay UE is sought to transit, where the relay UE may communicate with the base station through a Uu interface, and the relay UE may communicate with the remote UE through a sidelink (or referred to as a side link, etc.) interface (also referred to as a PC5 interface).

In the existing relay transmission, the relay UE is open, and can provide service for any remote UE, and any remote UE can access to the relay UE through searching, so that the quick and effective establishment of the relay transmission between private terminal devices cannot be realized.

Disclosure of Invention

The embodiment of the invention aims to provide a configuration method of relay parameters, terminal equipment and network side equipment, so that relay transmission can be quickly and effectively established between private terminal equipment.

In a first aspect, a method for configuring relay parameters is provided, where the method is performed by a network side device, and the method includes: and transmitting the relay parameter to a terminal device, wherein the terminal device comprises: at least one of a relay terminal device and a remote terminal device; wherein the relay parameters include: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

In a second aspect, there is provided a relay link establishment method, the method being performed by a relay terminal device, the method comprising: receiving a relay parameter, wherein the relay parameter comprises: identification information for identifying the correspondence between the relay terminal equipment and the remote terminal equipment; and establishing a relay link between the remote terminal equipment and the relay link based on the relay parameters.

In a third aspect, a method for establishing a relay link is provided, the method being performed by a remote terminal device, the method comprising: receiving a relay parameter, wherein the relay parameter comprises: identification information for identifying the correspondence between the remote terminal device and the relay terminal device; and establishing a relay link with the relay terminal equipment based on the relay parameters.

In a fourth aspect, there is provided a network side device including: a sending module, configured to send a relay parameter to a terminal device, where the terminal device includes: at least one of a relay terminal device and a remote terminal device; wherein the relay parameters include: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

In a fifth aspect, there is provided a relay terminal device including: the first receiving module is configured to receive a relay parameter, where the relay parameter includes: identification information for identifying the correspondence between the relay terminal equipment and the remote terminal equipment; and the first establishing module is used for establishing a relay link between the terminal equipment and the remote terminal equipment based on the relay parameters.

In a sixth aspect, there is provided a remote terminal device comprising: the second receiving module is configured to receive a relay parameter, where the relay parameter includes: identification information for identifying the correspondence between the remote terminal device and the relay terminal device; and the second establishing module is used for establishing a relay link with the relay terminal equipment based on the relay parameters.

In a seventh aspect, there is provided a terminal device, characterized by a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the relay link establishment method according to the second aspect.

An eighth aspect provides a terminal device, characterized by a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the relay link establishment method according to the third aspect.

A ninth aspect provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, which computer program, when executed by a processor, implements the steps of the method according to the first or second or third aspect.

In the embodiment of the invention, the network side equipment sends the relay parameters to the relay terminal equipment and/or the remote terminal equipment, wherein the relay parameters comprise the identification information for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment, and the relay terminal equipment and the remote terminal equipment establish the relay link according to the corresponding relation, so that the quick and effective establishment of relay transmission between private terminal equipment can be realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a flow chart of a method for configuring relay parameters according to an embodiment of the present invention;

fig. 2 is a flow chart of another method for configuring relay parameters according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a method for establishing a relay link according to an embodiment of the present invention;

fig. 4 is a flow chart of another method for establishing a relay link according to an embodiment of the present invention;

fig. 5 is a flowchart of another method for establishing a relay link according to an embodiment of the present invention;

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

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

fig. 8 is a schematic structural diagram of a remote UE according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network side device according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme of the invention can be applied to various communication systems, such as: global system for mobile communications (GSM, global System of Mobile communication), code division multiple access (CDMA, code Division Multiple Access) systems, wideband code division multiple access (WCDMA, wideband Code Division Multiple Access), general packet Radio service (GPRS, general Packet Radio Service), long term evolution (LTE, long Term Evolution)/enhanced long term evolution (LTE-a, long Term Evolution advanced), NR (New Radio), and the like.

In an embodiment of the present invention, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile phone), a User Equipment (MT), a handset (handset), a portable device (portable Equipment), a vehicle (vehicle), and the like, and may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the like, and the Terminal device may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.

The base station may be a base station (BTS, base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) and a 5G base station (gNB) in LTE, and the present invention is not limited thereto, but for convenience of description, the following embodiments will be described by taking the gNB as an example.

The following describes in detail the technical solutions provided by the embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 shows a flowchart of a method for configuring relay parameters according to an embodiment of the present invention, where the method 100 may be performed by a network side device, in other words, the method may be performed by software or hardware installed in the network side device, and as shown in fig. 1, the method includes the following steps:

S112, sending the relay parameter to a terminal device, wherein the terminal device (UE) includes: at least one of a relay terminal device (relay UE) and a remote terminal device (remote UE); wherein the relay parameters include: and the identification information is used for identifying the corresponding relation between the relay UE and the remote UE.

In the embodiment of the invention, the network side equipment can be a base station, network side equipment in a core network, or a base station and a core network.

In the embodiment of the invention, the relay UE and the remote UE may be different devices belonging to the same user. Such as a mobile terminal and a wearable device of the same user.

In the embodiment of the invention, the wearable device has own user identifier, such as access number 136 1988, and can be automatically connected with the network to transmit data, but because the requirement of the wearable device on power saving is very high, the wearable device hopes to be capable of waiting for a very long time. Therefore, the wearable device is accessed to the network through the mobile terminal, the mobile terminal transfers data to the wearable device through a Uu interface between the mobile terminal and the base station, the distance between the wearable device and the mobile terminal is very short, the communication of a sidelink link can be used, the power consumption of short-range communication is far less than the communication power consumption between the mobile terminal and the base station, and the electric quantity of the wearable device can be saved. In addition, in the aspect of charging, different devices of the same user can be combined for charging, sharing the same flow package, and the like, and convenience is brought to the use of the user. In such a similar scenario, the problem to be solved is the mutual identification problem of two UEs, so that the mobile terminal can easily identify the wearable device of the same user, provide services for the same user, avoid the non-allowed access of other users, and the wearable device can also conveniently find its home mobile terminal, thereby avoiding the actions of wasting electric quantity such as searching and trying for other UEs with similar functions. Therefore, in the embodiment of the present invention, dedicated relay transmission services are required to be performed by remote UE (e.g., wearable device, bracelet, watch, glasses, etc.) and relay UE (e.g., mobile phone).

Therefore, in the embodiment of the present invention, the relay parameter is sent to the terminal device. For example, the identification information may identify a pair of relay UE and remote UE, and indicate a binding relationship between the relay UE and the remote UE, so that the relay UE may establish a dedicated relay connection with the remote UE.

Therefore, the network side equipment sends the relay parameters to the relay UE and/or the remote UE, wherein the relay parameters comprise the identification information for identifying the corresponding relation between the relay UE and the remote UE, so that the relay link can be established by the subsequent relay UE and the remote UE according to the corresponding relation, and the quick and effective establishment of relay transmission between private terminal equipment is realized.

Fig. 2 shows a flowchart of another method for configuring relay parameters according to an embodiment of the present invention, where the method 200 may be performed by a network side device and a terminal device, in other words, the method may be performed by software or hardware installed on the network side device and software or hardware installed on the terminal device, and in the embodiment of the present invention, the terminal device includes a relay UE and/or a remote UE. As shown in fig. 2, the method comprises the steps of:

s212, sending a relay parameter to the terminal equipment, wherein the relay parameter comprises: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

In the embodiment of the invention, the network side equipment can be a base station, network equipment in a core network or network equipment in the base station and the core network.

In the embodiment of the present invention, the identification information for identifying the correspondence between the relay UE and the remote UE may include: the identity of the relay UE and the identity of the remote UE, or a relay link identity (link ID). That is, in the embodiment of the present invention, the identifier information may directly record the identifiers of the relay UE and the remote UE that are bound, or record the identifier of the relay link, where the identifier of the relay link indicates a pair of the relay UE and the remote UE.

The relay link identifier may be preset, that is, the correspondence between the relay link identifier and a pair of relay UE and remote UE may be preset, and the identifiers of the pair of relay UE and remote UE indicated by the relay link identifier are determined through the relay link identifier.

In the embodiment of the invention, both the relay UE and the remote UE belong to the network user, so in one possible implementation, the relay parameter is determined by the network side device configuration. In this possible implementation, before S212, the method may further include: receiving relay attribute information reported by terminal equipment, wherein the relay attribute information comprises: the terminal device can be used as a relay terminal device or a remote terminal device, and/or the terminal device can be used as a terminal device identifier of the relay terminal device or the remote terminal device.

For example, the relay UE and the remote UE may note at least one of the following information in their subscription information:

the UE can be used as a relay UE;

the UE can be used as remote UE;

the UE may provide relay services for which particular user/users;

the UE needs which particular user/users to provide me with the relay service.

In this possible implementation manner, subscription information may participate in subsequent authentication, charging, etc. processes, for example, one operator UE1, with the number 136 x 1888, and the other UE2, with the number 136 x 1889, opens the relay function, and the two UEs are bound, i.e. UE1 can only provide dedicated relay service for UE2, UE2 can only enjoy relay service through UE1, and the two UEs belong to the shared charging. Then the relay function of UE1 can pass smoothly and the remote function of UE2 can pass smoothly when the two UEs authenticate the network later. In terms of charging, two UE charges are combined. That is, the UE user is allowed to communicate as a relay UE and a remote UE at the core network and operator level, respectively. Next consider how to obtain proprietary parameters under network authorization, which is more beneficial for fast discovery and communication between two UEs.

In the possible implementation manner, the relay UE and the remote UE may respectively perform, obtain the relay parameter sent by the network side device, and ensure the uniformity of the relay UE and the remote UE through the configuration of the network side device.

By adopting the possible implementation manner, the relay UE and the remote UE can obtain configured relay parameters from the network side device by virtue of their subscription function information and binding information, and in general, the relay parameters configured in this way belong to a static state and have a relatively wide effective range, for example, are effective for a long time and are effective in the network range of the whole operator.

Or the relay UE and the remote UE may also report respective relay attribute parameters to the network side device, for example, the base station, where the base station allocates the relay parameters to the relay UE and the remote UE according to the relay attribute parameters reported by the relay UE and the remote UE, and sends the relay parameters to the relay UE and the remote UE. Relay parameters configured with this implementation are generally valid only within the coverage area of the base station.

In the embodiment of the invention, because the relay UE and the remote UE are both in short-range communication under the general condition, the probability of belonging to the same cell is relatively high. Thus, in another possible implementation, the request is made by the terminal device to the home base station, the relay parameters are configured by the home base station, and the relay parameters are valid only within the coverage or configured range of the home base station. Thus, in this possible implementation, before S112, the method may further: receiving a relay parameter configuration request sent by the relay UE; and determining the relay parameters according to the relay parameter configuration request. Through the possible implementation manner, after the relay link is established by the relay UE and the remote UE through the broadcast mode of the side link for the first time, after the identities of the relay UE and the remote UE are confirmed, the relay UE and the remote UE need to maintain private discovery and relay communication for a long time, so that the relay UE can initiate a relay parameter configuration request to its home base station by using a radio resource control (Radio Resource Control, RRC) process, and thus dedicated resources configured for the relay UE and the remote UE can be reduced.

In the above possible implementation manner, the relay parameter configuration request may carry parameter information of the remote UE; wherein the parameter information may include at least one of: the number of remote UEs that the relay UE can configure, the type of remote UE that the relay UE can configure, and the attributes of the remote UE that the relay UE can configure. Through the possible implementation manner, the network side device can determine the number, the type and the attribute of the remote UEs in the corresponding relationship indicated by the relay parameters, so as to configure the corresponding relay parameters.

In addition, optionally, the relay parameter configuration request may further carry service information, which indicates quality of service (Quality of Service, qoS) information of the transmission service between the relay UE and the remote UE. For example, the method can be used for reporting based on typical service or service information with highest requirement, so that the network side is convenient to configure appropriate relay parameters, for example, if the requirements of time delay and block error rate are higher, the physical resource period requirement is short, and the interference and collision probability is low.

In the possible implementation manner, the effective range of the relay parameter is valid under the current cell/base station or valid in the configured area. When the current cell/base station is valid, that is, when the relay UE Connected/Idea/active belongs to the current cell/base station, the configuration of the relay parameters is valid, and once the relay UE is switched or moved to other cells/base stations, the configuration of the relay parameters fails, and the relay UE needs to apply for the parameter configuration again to the network. In the configured area, the network can implicitly or explicitly inform the effective range of the relay UE and the remote UE when configuring the relay parameters dedicated to the relay UE and the remote UE, for example, an area identifier (area id) broadcasted in a system message, where the area id correspondingly includes a plurality of cell lists. Or broadcasting cells with the same area id in a system information block (System Information Block, SIB) belonging to the same effective area, and if the area id in the broadcast of the home cell is the same as the area id value in the broadcast of the cell with the initial configuration parameter in the moving process of the relay UE, continuing to take effect, otherwise, failing, requiring the relay UE to re-request the dedicated parameter. In the above-mentioned moving process, only the attribution of the relay UE is generally considered, because in some cases, the relay UE is connected to the network, and the remote UE is only attached and not directly connected to the network, and has the characteristic of similar group movement.

In each possible implementation manner, the identifier in the identifier information may be an ID for identifying a bottom layer of the sidelink interface or an ID for identifying a sidelink service layer; the ID of the bottom layer identification can be an identification carried in the sidelink L1/L2 data packet, so that the UE identity can be identified very rapidly, the ID of the high layer identification can be an identification carried in the service layer, and the UE identity can be identified only by solving the high layer data packet through the high layer process, and the former is fast and reliable. In the implementation process, the Identifier (ID) may be from a core network node (with a larger range) or may be from an access network node (with a smaller range) according to the application range, which is not limited in the embodiment of the present invention.

In each possible implementation manner, the relay parameters may further include: security parameters used for communication between relay UE and remote UE. Because the corresponding relation between the relay UE and the remote UE is already determined when signing, the network side device may include the dedicated security parameters in the relay parameters to issue the relay UE and the remote UE respectively. Among the security parameters include, but are not limited to: the security key, the security algorithm and other security related parameters can be used in the subsequent relay discovery and communication process after the relay UE and the remote UE receive the security parameters, so that the identities of the relay UE and the remote UE can be quickly confirmed, and other UEs can be prevented from being involved in the transmission of the sidelink relay. In a specific implementation, the security parameters may be assigned by the core network node.

In each possible implementation manner, optionally, the relay parameters may further include: physical resources used in the relay discovery procedure between the relay UE and the remote UE, in this embodiment, the relay discovery procedure includes: and the relay UE and the remote UE find out the other party. Because the physical resources used in the relay discovery process between the relay UE and the remote UE are configured, the relay UE and the remote UE only need to try and monitor on the appointed physical resources in the relay discovery process, thereby reducing power consumption and complexity. In a specific implementation procedure, physical resources used for performing a relay discovery procedure between the relay UE and the remote UE may be allocated by the base station through an RRC procedure.

The correspondence indicated by the identification information may include one or more remote UEs, where in the case of including a plurality of remote UEs, that is, in the case that the same relay UE corresponds to a plurality of remote UEs, physical resources used in the relay discovery process between different remote UEs and the same relay UE are the same or different; in this scenario, the subscription information of the relay UE and the remote UE may include support functions and identity information between each relay UE and the remote UE, and when the relay parameter is configured, the network side device may configure one relay UE for a plurality of remote UEs. The network side device may transmit the relay parameter separately for each relay UE and the remote UE, or the relay UE may request the relay parameter from the network side device and then distribute the relay parameter to each remote UE.

One or more relay UEs may be included in the correspondence indicated by the identification information, and when a plurality of relay UEs are included, that is, when a plurality of relay UEs correspond to one remote UE, physical resources used for relay discovery between different relay UEs and the same remote UE are different.

For example, the correspondence may include N relay UEs and M remote UEs, where N relay UEs may serve any one of the remote UEs, and one relay UE may serve multiple remote UEs at the same time. The M remote UEs may select any one of the relay UEs to serve, and it is not excluded that two or more relay UEs serve one remote UE at the same time. In this scenario, the subscription information of the relay UE and the remote UE may include support function and identity information between each relay UE and the remote UE, and when the relay parameter is configured, each UE of the network side device supports the function and the identity information and configures the relay parameter. The network side device may transmit the relay parameter separately for each relay UE and the remote UE, or one of the relay UEs may request the relay parameter from the network side device and then distribute the relay parameter to each remote UE and each relay UE by the relay UE.

And S214, the terminal equipment receives the relay parameters.

In the embodiment of the invention, if the relay UE and/or the remote UE notes the relay or remote function in the subscription information, if the relay/remote function does not set an independent switch on the terminal device side, that is, after the UE is started, the function is automatically provided. When the UE is powered on, an initial connection is established with the network, and an attachment (attach) and basic authentication process is performed, in the authentication process, in addition to the need of confirming the legal identity of the UE and allowing access to the LTE/NR network, for the relay/remote UE, additional verification of the validity of the relay/remote function is also required, and in the verification process or after verification is successful, the network side device may allocate a relay parameter to the relay/remote UE, or the UE actively requests dedicated configuration to the network. If the relay/remote function sets a switch on the terminal side, after the UE turns on the switch, the UE has a corresponding function, and the network side may allocate dedicated parameters to the relay/remote UE, or the UE actively requests dedicated configuration to the network.

Fig. 3 is a flowchart of a method for establishing a relay link according to an embodiment of the present invention, where the method 300 may be performed by a relay UE, in other words, the method may be performed by software or hardware installed in the relay UE, and as shown in fig. 3, the method mainly includes the following steps:

S312, receiving a relay parameter, where the relay parameter includes: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

In the embodiment of the present invention, the relay parameter received in S312 is a relay parameter sent by the network side device, and the network side device may send the relay parameter to the relay UE by using the S112 and S212 sending described in fig. 1 and fig. 2, and the detailed description of the S112 and S212 is omitted herein.

And S314, establishing a relay link with the remote UE based on the relay parameters.

In the embodiment of the invention, after receiving the relay parameter, the relay UE establishes a relay link with the remote UE by using the relay parameter.

In one possible implementation, as described in S112 and S212 above, the network side device may be a relay parameter sent after receiving the relay parameter configuration request sent by the relay UE. Thus, in one possible implementation, before S312, the method may further include: and sending a relay parameter configuration request to the network side equipment. For example, after the relay UE and the remote UE establish an initial connection in a general sidelink Unicast manner, after confirming their identities, the relay UE and the remote UE learn that they need to maintain private discovery and relay communication for a long period of time, so at this time, the relay UE may send a relay parameter configuration request to its home base station by using an RRC procedure, to request the base station to configure a relay parameter between the dedicated relay UE and the remote UE.

In one possible implementation, after receiving the relay parameter, the method may further include: and sending the relay parameters to the remote UE, so that the remote UE can also know the relay parameters, and the relay link is conveniently established with the remote UE.

For example, after the relay UE and the remote UE establish an initial connection in a general sidelink Unicast manner, the relay UE may send the relay parameter to the remote UE through a connection between the relay UE and the remote UE, for example, PC5RRC, after the relay UE requests the relay parameter from the network side device, so that the remote UE is convenient to use. That is, when the relay UE and the remote UE establish a connection for the first time, a normal procedure, that is, a procedure without relay parameters, is adopted, and the procedure may have a long delay and a high complexity. And then the relay UE acquires the dedicated parameters from the base station and notifies the remote UE, and then the relay UE and the remote UE establish a relay link based on the relay parameters and perform data transmission, so that the time delay can be shortened and the complexity can be reduced.

In addition, as described in the methods shown in fig. 1 and fig. 2, the correspondence indicated by the identification information may include a plurality of relay UEs and/or a plurality of remote UEs, so in one possible implementation, after receiving the relay parameter, the method may further include: and sending the relay parameters to other relay UE and remote UE except the current relay UE in the corresponding relation, so that the relay parameters can be acquired by the relay UE and the remote UE in the corresponding relation, and a relay link can be established according to the relay parameters.

Therefore, by the relay link establishment method provided by the embodiment of the invention, the relay UE and the remote UE establish the relay link based on the relay parameters configured by the network side equipment, so that the time delay can be shortened, and the complexity can be reduced.

Fig. 4 is a flow chart illustrating a method for establishing a relay link according to an embodiment of the present invention, where the method 400 may be performed by a remote UE, in other words, the method may be performed by software or hardware installed in the remote UE, and as shown in fig. 4, the method mainly includes the following steps:

s412, receiving a relay parameter, wherein the relay parameter comprises: and the identification information is used for identifying the corresponding relation between the remote terminal equipment and the relay terminal equipment.

The received relay parameter may be sent by the network side device, and specifically, reference may be made to the descriptions of S112 and S212 above. Alternatively, the received relay parameter may be transmitted by the relay UE, and in particular, reference may be made to the description of the relevant parts of fig. 1-3.

And S414, establishing a relay link with the relay terminal equipment based on the relay parameters.

In the embodiment of the invention, after receiving the relay parameter, the remote UE establishes a relay link with the relay UE by using the relay parameter.

Fig. 5 shows a flowchart of a method for establishing a relay link according to an embodiment of the present invention, where the method 500 may be performed by a relay UE and a remote UE, in other words, the method may be performed by software or hardware installed in the relay UE and the remote UE, and as shown in fig. 5, the method mainly includes the following steps:

s512, the relay UE receives relay parameters, where the relay parameters include: and the identification information is used for identifying the corresponding relation between the remote terminal equipment and the relay terminal equipment.

The step is the same as S312, and the relay parameter may be that the network side device is developed to the relay UE, as shown in fig. 5, and before S512, the method may further include: s510: the network side device sends the relay parameters to the relay UE, and the description of S112 and S212 may be referred to herein, which is not repeated.

And S514, the remote UE receives the relay parameters.

The step is the same as S412, and the relay parameter may be that the network side device is developed to the relay UE, or may be that the relay UE sends, as shown in fig. 5, before S512, further includes: s513: the network side device sends the relay parameters to the relay UE, which can be specifically described in S112 and S212, or S520: the relay UE sends the relay parameter to the remote UE, and description of relevant parts in the embodiment shown in fig. 3 may be specifically referred to herein, which is not repeated herein.

S516, based on the relay parameters, the relay UE establishes a relay link with the remote UE.

In one possible implementation, the relay UE establishing a relay link with the remote UE may include: s1, performing a relay discovery process between the relay UE and the remote UE based on the relay parameter, wherein the relay discovery process comprises the following steps: s2, the relay terminal equipment and the remote terminal equipment find out the other party; and establishing a relay link between the relay terminal equipment and the relay link based on the result of the relay discovery process. By the possible implementation manner, the relay discovery process is performed between the relay UE and the remote UE based on the relay parameters, so that the other party can be discovered quickly and accurately.

In one possible implementation, the relay discovery procedure may be actively triggered by the relay UE. In this possible implementation, the relay discovery procedure may include:

and S11, based on the relay parameters, the relay UE periodically transmits broadcast messages or measurement reference signals on preset physical resources.

If the physical resource used by the relay UE and the remote UE in the relay discovery process is indicated in the relay parameter, the predetermined physical resource is the physical resource indicated in the relay parameter, and if the physical resource is not indicated in the relay parameter, the predetermined physical resource may be a common resource.

Wherein, optionally, the broadcast message may carry relay information parameters of the relay UE, including but not limited to at least one of the following: an identity of the relay UE; characteristic configuration of relay UE, such as transmission parameters/capabilities, status, etc.; services that relay UEs may offer, such as relay; the relay UE may serve which UEs, such as remote UE IDs, etc. Alternatively, the broadcast message may also carry possible packaging (paging) information for the remote UE, for example, there is downlink data arrival (i.e. data sent to the remote UE by the network side is received), or important system message update, or notification message from the base station, etc.

In the case that the relay parameter carries a security parameter, the information carried in the broadcast message may be processed securely by using the security parameter, for example, encryption and/or integrity protection, and only the remote UE that receives the relay parameter may correctly parse the information.

And S13, based on the relay parameters, the remote UE receives broadcast messages or measurement reference signals sent by the relay terminal equipment on preset physical resources.

If the physical resource used by the relay UE and the remote UE in the relay discovery process is indicated in the relay parameter, the predetermined physical resource is the physical resource indicated in the relay parameter, and if the physical resource is not indicated in the relay parameter, the predetermined physical resource may be a common resource. I.e. the remote UE listens only on the predetermined physical resources for broadcast messages or measurement signals sent by the relay UE.

Under the condition that the relay parameters carry the security parameters, and under the condition that the broadcast message carries the relay information parameters of the relay UE, the remote UE can use the security parameters to perform security processing, such as decryption and/or integrity verification, so as to obtain the information carried in the broadcast message.

That is, after the remote UE acquires the relay parameter, the remote UE receives the relay parameter on a predetermined physical resource (possibly on a public resource if the predetermined physical resource is not configured in the relay parameter), performs a security resolving operation on the received information by using a dedicated security parameter (if the dedicated security is not configured in the relay parameter, the security resolving operation is not required), interprets the relay UE information, and matches the identity of the relay UE indicated in the received relay parameter with the received relay ID, and matches the remote ID indicated in the relay parameter with the received allowed remote ID, if the matching is successful, it is indicated that the relay UE is a matched relay UE of its own, otherwise, irrelevant information may be ignored.

S15, the remote UE sends an access request to the relay UE.

For example, after the foregoing matching is successful, the remote UE may send an access request to the relay UE, and reside under the relay UE to wait for the called service and the calling service. Or, in order to ensure the reliability of the subsequent establishment of the relay link, before sending the access request to the relay UE, the remote UE may determine, according to the reference signal measurement or other parameters carried in the broadcast message, whether the link quality with the relay UE satisfies the condition of the sidelink communication, if so, may send the access request to the relay UE, reside under the relay UE, wait for the called service and the calling service, and if not, the remote UE may select to open a functional switch of its Uu interface, and reside under the base station. And when the downlink service arrives at the remote UE, informing the remote UE through the relay UE. And the remote UE initiates an access request to the relay UE, the relay UE establishes a relay link with the remote UE after receiving the access request, and the relay UE relays to perform normal downlink data transmission. When the uplink service arrives at the remote UE, the remote UE may send an access request to the relay UE at a specific location, and after the relay UE receives the access request, establish a relay link with the remote UE, where the remote UE initiates an establishment and service request to the base station through the relay UE, where the specific location may only be a location that is pre-agreed between the relay UE and the remote UE, or a location that has a certain binding relationship with a location that is periodically broadcast by the relay UE.

S17, the relay UE receives an access request sent by the remote UE.

After receiving the access request, the relay UE establishes a relay link with the remote UE, and then the relay UE forwards communication information between the remote UE and the base station to realize relay transmission.

In another possible implementation, the relay discovery procedure may be actively triggered for the remote UE. In this possible implementation, the relay discovery procedure may include:

s12, the remote UE determines that data needs to be sent to a network side.

S14, the remote UE sends an access request to the relay UE on the preset physical resource.

The predetermined physical resource may be a physical resource used in a relay discovery procedure between the relay UE and the remote UE indicated in a relay parameter, and if the relay parameter does not include the parameter, the physical resource may also be common for a sidelink request.

S16, the relay UE returns confirmation feedback to the remote UE.

After receiving the request, the relay UE returns confirmation feedback to the remote UE; or, in order to ensure the reliability of the relay link established later, before the confirmation feedback is returned to the remote UE, the relay UE may determine according to the link quality, and if the Uu interface and the link quality between the remote UE meet the communication requirements, return the confirmation feedback of the agreement to the relay UE. Similar to the possible implementation manner, if the relay parameter includes a security parameter, the communication information may be securely processed by using the security parameter in the process, and the identification information in the relay parameter may be used for identification.

And S18, the remote UE receives confirmation feedback returned by the relay terminal equipment.

And then, a relay link is established between the relay UE and the remote UE, the relay UE relays signaling and data of the remote UE, and the remote UE can communicate with the base station and the network through the relay UE.

In S14, after sending the access request, the remote UE may perform timing, and if the acknowledgement feedback returned by the relay UE is not received within a predetermined time, the remote UE communicates with the base station. For example, after the remote UE sends the access request, a timer may be set, before the timer times out, the above procedure is normally executed when the acknowledgement feedback of the relay UE is received, if the timer times out, no feedback of the relay UE is still received, the link quality is considered to be too poor, the distance is too far, and the like, which are not suitable for performing the communication in the relay mode, and at this time, the remote UE may directly communicate with the base station.

By adopting the possible implementation manner, the remote UE sends the request only when the request is required, so that the periodic search of the relay UE is avoided, and the cost is saved.

In each possible implementation manner, the relay parameters may further include: security parameters used for communication between relay UE and remote UE. Because the corresponding relation between the relay UE and the remote UE is already determined when signing, the network side device may include the dedicated security parameters in the relay parameters to issue the relay UE and the remote UE respectively. Among the security parameters include, but are not limited to: the security key, the security algorithm and other security related parameters can be used in the subsequent relay discovery and communication process after the relay UE and the remote UE receive the security parameters, so that the identities of the relay UE and the remote UE can be quickly confirmed, and other UEs can be prevented from being involved in the transmission of the sidelink relay. In this possible implementation, the relay UE and the remote UE encrypt or decrypt the communication data with the peer according to the security parameters in the relay parameters. In a specific implementation, the security parameters may be assigned by the core network node.

In each possible implementation manner, optionally, the relay parameters may further include: physical resources used in the relay discovery procedure between the relay UE and the remote UE, in this embodiment, the relay discovery procedure includes: and the relay UE and the remote UE find out the other party. Then in this possible implementation, the relay UE and the remote UE perform a relay discovery procedure on the predetermined physical resources indicated by the relay parameter. Because the physical resources used in the relay discovery process between the relay UE and the remote UE are configured, the relay UE and the remote UE only need to try and monitor on the appointed physical resources in the relay discovery process, thereby reducing power consumption and complexity. In a specific implementation procedure, physical resources used for performing a relay discovery procedure between the relay UE and the remote UE may be allocated by the base station through an RRC procedure.

The correspondence indicated by the identification information may include one or more remote UEs, where in the case of including a plurality of remote UEs, that is, in the case that the same relay UE corresponds to a plurality of remote UEs, physical resources used in the relay discovery process between different remote UEs and the same relay UE are the same or different; in this scenario, the subscription information of the relay UE and the remote UE may include support functions and identity information between each relay UE and the remote UE, and when the relay parameter is configured, the network side device may configure one relay UE for a plurality of remote UEs. The network side device may transmit the relay parameter separately for each relay UE and the remote UE, or the relay UE may request the relay parameter from the network side device and then distribute the relay parameter to each remote UE. Then the relay UE actively triggers, so that the remote UE can conveniently acquire relay E information, paging and update information possibly coming from a network and the like; or the remote UE initiatively initiates a request, and the relay UE relays the service for the request. The physical resources used in the relay discovery process between each remote UE and the same relay UE may be different, or in order to improve the utilization rate of the resources, the physical resources used in the relay discovery process between different remote UEs and the same relay UE may be the same.

For example, the correspondence may include N relay UEs and M remote UEs, where N relay UEs may serve any one of the remote UEs, and one relay UE may serve multiple remote UEs at the same time. The M remote UEs may select any one of the relay UEs to serve, and it is not excluded that two or more relay UEs serve one remote UE at the same time. In this scenario, the subscription information of the relay UE and the remote UE may include support function and identity information between each relay UE and the remote UE, and when the relay parameter is configured, each UE of the network side device supports the function and the identity information and configures the relay parameter. The network side device may transmit the relay parameter separately for each relay UE and the remote UE, or one of the relay UEs may request the relay parameter from the network side device and then distribute the relay parameter to each remote UE and each relay UE by the relay UE. Then, the relay UE actively triggers, if the relay UE is a plurality of relay UEs, the physical resources of different relay UEs for the relay discovery process need to be separated, so that the remote UE can conveniently obtain the information of each relay UE, paging and updating information possibly from a network, and the like; in a specific application, when the remote UE does not send traffic, one relay UE may be selected to monitor, for example, select the relay UE with the best channel quality, or select according to a configuration rule. Or waiting for the remote UE to initiate the request actively, wherein the received relay UE is used for transferring the service, and if more than one relay UE is responded, the remote UE can select one or more than one relay UE to serve the remote UE.

Therefore, by the relay link establishment method provided by the embodiment of the invention, one or more UE (user equipment) can use the special relay parameters to perform relay discovery and relay transmission processes, so that binding is better performed, other user interference is eliminated, power consumption of the remote UE is reduced on the basis of being beneficial to joint charging, and the whole system efficiency and user experience can be improved.

According to the embodiment of the invention, a network side device is also provided.

Fig. 6 shows a schematic structural diagram of a network side device according to an embodiment of the present invention, where, as shown in fig. 6, a network side device 600 at least includes: a transmitting module 610.

The sending module 610 is configured to send the relay parameter to a terminal device, where the terminal device includes: at least one of a relay terminal device and a remote terminal device; wherein the relay parameters include: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

The network side device 600 in the embodiment of the present invention may refer to the flow executed by the network side device in the method 100 corresponding to the embodiment of the present invention, and each unit/module in the network side device 600 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 100, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

In a possible implementation manner, the network side device 600 may further include a first receiving module, configured to receive, before the sending module sends the relay parameter to the terminal device, relay attribute information reported by the terminal device, where the relay attribute information includes: the terminal device can be used as indication information of the relay terminal device or the remote terminal device, and/or the terminal device can be used as terminal device identification of the relay terminal device or the remote terminal device.

In one possible implementation, the network side device 600 may further include: the system comprises a first receiving module and a determining module, wherein the first receiving module is used for receiving a relay parameter configuration request sent by a relay terminal device before a relay parameter is sent to the terminal device by a sending module; and the determining module is used for determining the relay parameters according to the relay parameter configuration request.

In one possible implementation, the relay parameters further include: the security parameters used for communication between the relay terminal equipment and the remote terminal equipment; and/or physical resources used by the relay discovery process between the relay terminal equipment and the remote terminal equipment, wherein the relay discovery process comprises: and the process of the relay terminal equipment and the remote terminal equipment finding the other party.

In one possible implementation manner, the correspondence relationship includes a plurality of remote terminal devices, where physical resources used in a relay discovery process between different remote terminal devices and the same relay terminal device are the same or different; and/or the corresponding relation comprises a plurality of relay terminal devices, wherein physical resources used for relay discovery between different relay terminal devices and the same remote terminal device are different.

In one possible implementation, the identification information includes: the identity of the relay terminal equipment and the identity of the remote terminal equipment, or a relay link identity.

The network side device 600 provided in the embodiment of the present invention can implement each process implemented by the network side device in the method 100 shown in fig. 1 and the method 200 shown in fig. 2, and achieve the same technical effects, so that repetition is avoided, and details are not repeated here.

Fig. 7 is a schematic structural diagram of a relay UE according to an embodiment of the present invention. As shown in fig. 7, the relay UE 700 includes: a first receiving module 710 and a first establishing module 720.

A first receiving module 710, configured to receive relay parameters, where the relay parameters include: identification information for identifying the correspondence between the relay terminal equipment and the remote terminal equipment; a first establishing module 720, configured to establish a relay link with the remote terminal device based on the relay parameter.

In one possible implementation, the first establishing module 720 may include: a first execution unit that executes a relay discovery procedure with the remote terminal device based on the relay parameter, wherein the relay discovery procedure includes: a process in which the relay terminal device and the remote terminal device find each other; and a first establishing unit for establishing a relay link with the remote terminal equipment based on the result of the relay discovery process.

In one possible implementation, the first execution unit may execute the relay discovery procedure with the remote terminal device by: periodically transmitting a broadcast message or a measurement reference signal on a predetermined physical resource based on the relay parameter; and receiving an access request sent by the remote terminal equipment.

In one possible implementation manner, the broadcast message carries information of at least one of the following: the identification of the relay terminal equipment, the feature configuration of the relay terminal equipment, the service which can be provided by the relay terminal equipment and the identification of the remote terminal equipment which can be used as the relay terminal equipment.

In one possible implementation, the first execution unit may execute the relay discovery procedure with the remote terminal device by: receiving an access request sent by the remote terminal equipment on a preset physical resource based on the relay parameter; and returning confirmation feedback to the remote terminal equipment.

In one possible implementation, the first execution unit performs the relay discovery procedure with the remote terminal device by: and executing a relay discovery process with the remote terminal equipment on a preset physical resource indicated by the relay parameter, wherein the preset physical resource is a physical resource used by the relay discovery process between the relay terminal equipment and the remote terminal equipment.

In one possible implementation manner, the correspondence relationship includes a plurality of remote terminal devices, where physical resources used in a relay discovery process between different remote terminal devices and the same relay terminal device are the same or different; and/or the corresponding relation comprises a plurality of relay terminal devices, wherein physical resources used for the relay discovery process between different relay terminal devices and the same remote terminal device are different.

In one possible implementation, the relay UE 700 may further include: and the sending module is used for sending the relay parameter to the remote terminal equipment after the first receiving module 710 receives the relay parameter.

In one possible implementation, the relay UE 700 may further include: and the first safety processing module is used for carrying out safety processing on communication data between the first receiving module and the remote terminal equipment according to the safety parameters in the relay parameters after the first receiving module receives the relay parameters, wherein the safety parameters are the safety parameters of communication between the relay terminal equipment and the remote terminal equipment.

In one possible implementation, the identification information includes: the identification information of the relay terminal equipment and the identification information of the remote terminal equipment, or the relay link identification.

The relay UE 700 according to the embodiment of the present invention may refer to the flow executed by the relay UE in the embodiment of the method described in the embodiment of fig. 3 and fig. 5, and each unit/module in the relay UE 700 and the other operations and/or functions described above implement the flow executed by the relay UE in the embodiment of the method shown in the embodiment of fig. 3 and fig. 5, respectively, and the same or equivalent technical effects can be achieved, which are not repeated herein for brevity.

Fig. 8 shows a schematic structural diagram of a remote UE according to an embodiment of the present invention, as shown in fig. 8, a remote UE 800 includes: a second receiving module 810 and a second establishing module 820.

The second receiving module 810 is configured to receive a relay parameter, where the relay parameter includes: identification information for identifying the correspondence between the remote terminal device and the relay terminal device; and a second establishing module 820, configured to establish a relay link with the relay terminal device based on the relay parameter.

In one possible implementation, the second establishing module 810 may include: a second execution unit, configured to execute a relay discovery procedure with the relay terminal device based on the relay parameter, where the relay discovery procedure includes: a process in which the relay terminal device and the remote terminal device find each other; and a second establishing unit, configured to establish a relay link with the relay terminal device based on a result of the relay discovery procedure.

In one possible implementation, the second execution unit may execute the relay discovery procedure with the relay terminal device in the following manner: based on the relay parameter, receiving a broadcast message or a measurement reference signal sent by the relay terminal equipment on a preset physical resource; and sending an access request to the relay terminal equipment.

In one possible implementation, the second execution unit may execute the relay discovery procedure with the relay terminal device in the following manner: determining that data needs to be sent to a network side; sending an access request to the relay terminal equipment on a preset physical resource; and receiving confirmation feedback returned by the relay terminal equipment.

In one possible implementation, the remote UE 800 may further include: and the communication module is used for directly communicating with the base station after the access request is sent to the relay terminal equipment on the preset physical resource and the confirmation feedback returned by the relay terminal equipment is not received in the preset time.

In one possible implementation, the second execution unit may execute the relay discovery procedure with the relay terminal device in the following manner: and executing a relay discovery process with the relay terminal equipment on a preset physical resource indicated by the relay parameter, wherein the preset physical resource is a physical resource used by the relay discovery process between the relay terminal equipment and the remote terminal equipment.

In a possible implementation manner, the correspondence relationship includes a plurality of remote terminal devices, where physical resources used in a relay discovery process between different remote terminal devices and the same relay terminal device are the same or different; and/or the corresponding relation comprises a plurality of relay terminal devices, wherein physical resources used for the relay discovery process between different relay terminal devices and the same remote terminal device are different.

In one possible implementation, the second receiving module 810 may receive the relay parameters by: receiving the relay parameters sent by the network side equipment; or receiving the relay parameter sent by the relay terminal equipment.

In one possible implementation, the remote UE 800 may further include: and the second security processing module is used for performing security processing on communication data between the second security processing module and the relay terminal equipment according to security parameters in the relay parameters after receiving the relay parameters, wherein the security parameters are used for communication between the relay terminal equipment and the remote terminal equipment.

The remote UE 800 provided in the embodiment of the present invention can implement each process implemented by the remote UE in the method embodiments of fig. 3 and fig. 4, and can achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Fig. 9 is a block diagram of a mobile terminal according to another embodiment of the present invention. The mobile terminal 900 shown in fig. 9 includes: at least one processor 901, memory 902, at least one network interface 904, and a user interface 903. The various components in the mobile terminal 900 are coupled together by a bus system 905. It is appreciated that the bus system 905 is employed to enable connected communications between these components. The bus system 905 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 905 in fig. 9.

The mobile terminal 900 as shown in fig. 9 may function as a relay UE or a remote UE in the above embodiments and implement the procedures implemented by the relay UE or the remote UE in the above embodiments.

The user interface 903 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).

It will be appreciated that the memory 902 in embodiments of the invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be a random access memory (RandomAccessMemory, RAM) that acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic random access memory (DynamicRAM, DRAM), synchronous dynamic random access memory (SynchronousDRAM, SDRAM), double data rate synchronous dynamic random access memory (ddr SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous link dynamic random access memory (SynchlinkDRAM, SLDRAM), and direct memory bus random access memory (DirectRambusRAM, DRRAM). The memory 902 of the systems and methods described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some implementations, the memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 9021 and application programs 9022.

The operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 9022 includes various application programs such as a media player (MediaPlayer), a Browser (Browser), and the like for realizing various application services. A program for implementing the method of the embodiment of the present invention may be included in the application 9022.

In an embodiment of the present invention, the mobile terminal 900 further includes: a computer program stored on the memory 902 and executable on the processor 907, the mobile terminal being either a relay UE or a remote UE as described in the above embodiments, the computer program when executed by the processor 901 performing the steps of: receiving a relay parameter, wherein the relay parameter comprises: identification information for identifying the correspondence between the relay terminal equipment and the remote terminal equipment; and establishing a relay link between the remote terminal equipment and the relay link based on the relay parameters. When being the remote UE described above, the computer program when executed by the processor 901 performs the steps of: receiving a relay parameter, wherein the relay parameter comprises: identification information for identifying the correspondence between the remote terminal device and the relay terminal device; and establishing a relay link with the relay terminal equipment based on the relay parameters.

The method disclosed in the above embodiment of the present invention may be applied to the processor 901 or implemented by the processor 901. Processor 901 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 901 or instructions in the form of software. The processor 901 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a computer readable storage medium well known in the art such as random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, and the like. The computer readable storage medium is located in a memory 902, and a processor 901 reads information in the memory 902 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 901, performs the steps of the method embodiments described in the above figures 1 to 5.

It is to be understood that the embodiments of the invention described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in embodiments of the present invention may be implemented by modules (e.g., procedures, functions, and so on) that perform the functions described in embodiments of the present invention. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, when the mobile terminal 900 is used as the relay UE, the computer program is executed by the processor 901 to implement the respective processes implemented by the relay UE in the method embodiments shown in fig. 3 and 5, and when the mobile terminal 900 is used as the remote UE, the computer program is executed by the processor 901 to implement the respective processes implemented by the remote UE in the method embodiments shown in fig. 4 and 5, which are described above, and the same or equivalent technical effects can be achieved, so that repetition is avoided and no further description is given here.

Referring to fig. 10, fig. 10 is a block diagram of a network side device according to an embodiment of the present invention, which can implement details of a method for configuring relay parameters in the method embodiment shown in fig. 1 and fig. 2, and achieve the same effects. As shown in fig. 10, the network-side device 1000 includes: processor 1001, transceiver 1002, memory 1003, user interface 1004, and bus interface, wherein:

in the embodiment of the present invention, the network side device 1000 further includes: computer programs stored on the memory 1003 and executable on the processor 1001, which when executed by the processor 1001 implement the steps of the network side device in the method embodiments described in fig. 1 and 2.

In fig. 10, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1003. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 1004 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1001 in performing operations.

The embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the computer program when executed by a processor implements each process of each method embodiment shown in fig. 1 to 5 and achieves the same technical effects, and in order to avoid repetition, a detailed description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A method for configuring relay parameters, wherein the method is performed by a network side device, the method comprising:

receiving relay attribute information reported by terminal equipment, wherein the relay attribute information comprises: the terminal device can be used as indication information of the relay terminal device or the remote terminal device, and/or can be used as a terminal device identifier of the relay terminal device or the remote terminal device;

authenticating the terminal equipment according to the subscription information of the terminal equipment, wherein the subscription information comprises at least one of the following: the terminal device can be used as a relay terminal device, the terminal device can be used as a far-end terminal device, the terminal device can provide relay service for one or more specific users, and the terminal device needs one or more specific users to provide relay service for the terminal device;

and sending a relay parameter to the terminal equipment under the condition that the authentication of the terminal equipment is passed, wherein the terminal equipment comprises: at least one of a relay terminal device and a remote terminal device;

wherein the relay parameters include: and the identification information is used for identifying the corresponding relation between the relay terminal equipment and the remote terminal equipment.

2. The method of claim 1, wherein prior to transmitting the relay parameters to the terminal device, the method further comprises:

receiving a relay parameter configuration request sent by the relay terminal equipment;

and determining the relay parameters according to the relay parameter configuration request.

3. The method of any of claims 1 to 2, wherein the relay parameters further comprise: the security parameters used for communication between the relay terminal equipment and the remote terminal equipment; and/or physical resources used by the relay discovery process between the relay terminal equipment and the remote terminal equipment, wherein the relay discovery process comprises: and the process of the relay terminal equipment and the remote terminal equipment finding the other party.

4. The method of claim 3, wherein,

the corresponding relation comprises a plurality of remote terminal devices, wherein physical resources used in a relay discovery process between different remote terminal devices and the same relay terminal device are the same or different; and/or the number of the groups of groups,

the corresponding relation comprises a plurality of relay terminal devices, wherein physical resources used for relay discovery between different relay terminal devices and the same remote terminal device are different.

5. The method of any of claims 1 to 2, wherein the identification information comprises: the identity of the relay terminal equipment and the identity of the remote terminal equipment, or a relay link identity.

6. A relay link establishment method, wherein the method is performed by a relay terminal device, the method comprising:

reporting relay attribute information to network side equipment, wherein the relay attribute information comprises: the relay terminal equipment can be used as indication information of the relay terminal equipment and/or can be used as terminal equipment identification of the relay terminal equipment;

receiving a relay parameter, wherein the relay parameter comprises: the relay parameter is sent by the network side device after authentication and authentication are performed on the relay terminal device according to subscription information of the terminal device, and the subscription information comprises at least one of the following: the terminal device can be used as a relay terminal device, the terminal device can be used as a far-end terminal device, the terminal device can provide relay service for one or more specific users, and the terminal device needs one or more specific users to provide relay service for the terminal device;

And establishing a relay link between the remote terminal equipment and the relay link based on the relay parameters.

7. The method of claim 6, wherein establishing a relay link with the remote terminal device based on the relay parameters comprises:

and performing a relay discovery process with the remote terminal device based on the relay parameter, wherein the relay discovery process comprises: a process in which the relay terminal device and the remote terminal device find each other;

and establishing a relay link between the remote terminal equipment and the relay link based on the result of the relay discovery process.

8. The method of claim 7, wherein performing a relay discovery procedure with the remote terminal device based on the relay parameters comprises:

periodically transmitting a broadcast message or a measurement reference signal on a predetermined physical resource based on the relay parameter;

and receiving an access request sent by the remote terminal equipment.

9. The method of claim 8, wherein the broadcast message carries information of at least one of: the identification of the relay terminal equipment, the feature configuration of the relay terminal equipment, the service which can be provided by the relay terminal equipment and the identification of the remote terminal equipment which can be used as the relay terminal equipment.

10. The method of claim 7, wherein performing a relay discovery procedure with the remote terminal device based on the relay parameters comprises:

receiving an access request sent by the remote terminal equipment on a preset physical resource based on the relay parameter;

and returning confirmation feedback to the remote terminal equipment.

11. The method according to any of claims 7 to 10, wherein performing a relay discovery procedure with the remote terminal device based on the relay parameters comprises:

and executing a relay discovery process with the remote terminal equipment on a preset physical resource indicated by the relay parameter, wherein the preset physical resource is a physical resource used by the relay discovery process between the relay terminal equipment and the remote terminal equipment.

12. The method of claim 11, wherein the correspondence includes a plurality of the remote terminal devices, and wherein physical resources used for performing a relay discovery procedure between different remote terminal devices and the same relay terminal device are the same or different; and/or the corresponding relation comprises a plurality of relay terminal devices, wherein physical resources used for the relay discovery process between different relay terminal devices and the same remote terminal device are different.

13. The method of claim 6, wherein after receiving the relay parameters, the method further comprises:

and sending the relay parameters to the remote terminal equipment.

14. The method of any of claims 6 to 10, and 13, further comprising, after the receiving relay parameters:

and carrying out safety processing on communication data between the relay terminal equipment and the remote terminal equipment according to the safety parameters in the relay parameters, wherein the safety parameters are the safety parameters for communication between the relay terminal equipment and the remote terminal equipment.

15. The method of any of claims 6 to 10, and 13, wherein the identification information comprises: the identification information of the relay terminal equipment and the identification information of the remote terminal equipment, or the relay link identification.

16. A method of relay link establishment, the method performed by a remote terminal device, the method comprising:

reporting relay attribute information to network side equipment, wherein the relay attribute information comprises: the remote terminal device can be used as indication information of the remote terminal device and/or can be used as terminal device identification of the remote terminal device;

Receiving a relay parameter, wherein the relay parameter comprises: the network side equipment is used for receiving the subscription information of the terminal equipment, and the subscription information comprises the following information: the terminal device can be used as a relay terminal device, the terminal device can be used as a far-end terminal device, the terminal device can provide relay service for one or more specific users, and the terminal device needs one or more specific users to provide relay service for the terminal device;

and establishing a relay link with the relay terminal equipment based on the relay parameters.

17. The method of claim 16, wherein establishing a relay link with the relay terminal device based on the relay parameter comprises:

and performing a relay discovery process with the relay terminal device based on the relay parameter, wherein the relay discovery process includes: a process in which the relay terminal device and the remote terminal device find each other;

and establishing a relay link between the relay terminal equipment and the relay link based on the result of the relay discovery process.

18. The method of claim 17, wherein performing a relay discovery procedure with the relay terminal device based on the relay parameters comprises:

based on the relay parameter, receiving a broadcast message or a measurement reference signal sent by the relay terminal equipment on a preset physical resource;

and sending an access request to the relay terminal equipment.

19. The method of claim 17, wherein performing a relay discovery procedure with the relay terminal device based on the relay parameters comprises:

determining that data needs to be sent to a network side;

sending an access request to the relay terminal equipment on a preset physical resource;

and receiving confirmation feedback returned by the relay terminal equipment.

20. The method of claim 19, wherein after sending an access request to the relay terminal device on a predetermined physical resource, the method further comprises:

and the confirmation feedback returned by the relay terminal equipment is not received within the preset time, and the communication is directly carried out with the base station.

21. The method according to any one of claims 17 to 19, wherein performing a relay discovery procedure with the relay terminal device based on the relay parameter comprises:

And executing a relay discovery process with the relay terminal equipment on a preset physical resource indicated by the relay parameter, wherein the preset physical resource is a physical resource used by the relay discovery process between the relay terminal equipment and the remote terminal equipment.

22. The method of claim 21, wherein,

the corresponding relation comprises a plurality of remote terminal devices, wherein physical resources used in a relay discovery process between different remote terminal devices and the same relay terminal device are the same or different; and/or the corresponding relation comprises a plurality of relay terminal devices, wherein physical resources used for the relay discovery process between different relay terminal devices and the same remote terminal device are different.

23. The method according to any of claims 16 to 19, wherein receiving relay parameters comprises:

receiving the relay parameters sent by the network side equipment; or alternatively, the process may be performed,

and receiving the relay parameters sent by the relay terminal equipment.

24. The method according to any one of claims 16 to 19, wherein after receiving the relay parameters, the method further comprises:

And carrying out safety processing on communication data between the relay terminal equipment according to the safety parameters in the relay parameters, wherein the safety parameters are used for communication between the relay terminal equipment and the remote terminal equipment.

25. The method of any of claims 16 to 19, wherein the identification information comprises: the identity of the relay terminal equipment and the identity of the remote terminal equipment, or a relay link identity.

26. A network side device, comprising:

the first receiving module is configured to receive relay attribute information reported by a terminal device, where the relay attribute information includes: the terminal device can be used as indication information of the relay terminal device or the remote terminal device, and/or can be used as a terminal device identifier of the relay terminal device or the remote terminal device;

the authentication module is used for authenticating the terminal equipment according to the subscription information of the terminal equipment, wherein the subscription information comprises at least one of the following: the terminal device can be used as a relay terminal device, the terminal device can be used as a far-end terminal device, the terminal device can provide relay service for one or more specific users, and the terminal device needs one or more specific users to provide relay service for the terminal device;

A sending module, configured to send a relay parameter to a terminal device when authentication passes through the terminal device, where the terminal device includes: at least one of a relay terminal device and a remote terminal device;

27. A relay terminal device, comprising:

the sending module is used for reporting relay attribute information to the network side equipment, wherein the relay attribute information comprises: the relay terminal equipment can be used as indication information of the relay terminal equipment and/or can be used as terminal equipment identification of the relay terminal equipment;

the first receiving module is configured to receive a relay parameter, where the relay parameter includes: the relay parameter is sent by the network side device after authentication and authentication are performed on the relay terminal device according to subscription information of the terminal device, and the subscription information comprises at least one of the following: the terminal device can be used as a relay terminal device, the terminal device can be used as a far-end terminal device, the terminal device can provide relay service for one or more specific users, and the terminal device needs one or more specific users to provide relay service for the terminal device;

And the first establishing module is used for establishing a relay link between the terminal equipment and the remote terminal equipment based on the relay parameters.

28. A remote terminal device, comprising:

the sending module is used for reporting relay attribute information to the network side equipment, wherein the relay attribute information comprises: the remote terminal device can be used as indication information of the remote terminal device and/or can be used as terminal device identification of the remote terminal device;

the second receiving module is configured to receive a relay parameter, where the relay parameter includes: the network side equipment is used for receiving the subscription information of the terminal equipment, and the subscription information comprises the following information: the terminal device can be used as a relay terminal device, the terminal device can be used as a far-end terminal device, the terminal device can provide relay service for one or more specific users, and the terminal device needs one or more specific users to provide relay service for the terminal device;

and the second establishing module is used for establishing a relay link with the relay terminal equipment based on the relay parameters.

29. A network side device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of configuring relay parameters according to any one of claims 1 to 5.

30. A terminal device characterized by a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program being implemented when executed by the processor:

the relay link establishment method according to any one of claims 6 to 15; or alternatively

The method of relay link establishment according to any of claims 16 to 25.

31. A computer readable storage medium, wherein the computer readable storage medium has stored thereon a computer program which when executed by a processor implements:

the step of a relay parameter configuration method according to any one of claims 1 to 5; or alternatively, the process may be performed,

The method of relay link establishment according to any of claims 16 to 25.