CN113038628A

CN113038628A - Relay parameter configuration method, terminal equipment and network side equipment

Info

Publication number: CN113038628A
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: 2021-06-25
Anticipated expiration: 2039-12-09
Also published as: WO2021115252A1; CN113038628B

Abstract

The invention discloses a relay parameter configuration method, terminal equipment and network side equipment. The method is executed by a network side device, and comprises the following steps: transmitting relay parameters 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 identification information for identifying the corresponding relationship between the relay terminal device and the remote terminal device.

Description

Relay parameter configuration method, terminal equipment and network side 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 device.

Background

In the related art, when coverage of a base station is limited, some terminal devices (UEs) covering a weaker area may search for UEs capable of providing a relay mechanism to provide a data forwarding service for the UEs. 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 due to poor coverage, the relay UE is found to be a relay thereof, 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 called sidelink, etc.) interface (also called 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 the relay UE through searching, and cannot establish relay transmission between private terminal devices quickly and effectively.

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 established quickly and effectively 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: transmitting relay parameters 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 identification information for identifying the corresponding relationship between the relay terminal device and the remote terminal device.

In a second aspect, a relay link establishment method is provided, where the method is performed by a relay terminal device, and the method includes: receiving relay parameters, wherein the relay parameters comprise: identification information for identifying the correspondence between the relay terminal device and the remote terminal device; and establishing a relay link with the remote terminal equipment based on the relay parameters.

In a third aspect, a relay link establishment method is provided, where the method is performed by a remote terminal device, and the method includes: receiving relay parameters, wherein the relay parameters comprise: 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, a network-side device is provided, where the network-side device includes: 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 identification information for identifying the corresponding relationship between the relay terminal device and the remote terminal device.

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

In a sixth aspect, a remote terminal device is provided, which includes: a second receiving module, 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, a terminal device is provided, which is characterized by a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the computer program, when executed by the processor, implements the steps of the relay link establishment method according to the second aspect.

In an eighth aspect, there is provided a terminal device, characterized by a memory, a processor and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, implementing the steps of the relay link establishment method according to the third aspect.

In a ninth aspect, there is provided a computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method according to the first aspect or the second aspect or the third aspect.

In the embodiment of the invention, the relay parameters are sent to the relay terminal equipment and/or the far-end terminal equipment through the network side equipment, the relay parameters comprise identification information for identifying the corresponding relation between the relay terminal equipment and the far-end terminal equipment, and the relay link is established by the relay terminal equipment and the far-end terminal equipment according to the corresponding relation, so that the relay transmission can be quickly and effectively established between the private terminal equipment.

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 not to limit the invention. In the drawings:

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

fig. 2 is a flowchart illustrating another relay parameter configuration method according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for establishing a relay link according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating another relay link establishment method according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a method for establishing a relay link according to another 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme of the invention can be applied to various communication systems, such as: global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), Long Term Evolution/enhanced Long Term Evolution (LTE-a), and nr new Radio.

In the 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 Telephone), a User Equipment (MT), a handset (handset), a portable device (portable Equipment), a vehicle (vehicle), etc., and the Terminal device may communicate with one or more core networks through a 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 Terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile apparatus.

The Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved Node B (eNB or e-NodeB) and a 5G Base Station (gNB) in LTE.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

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

s112, sending the relay parameters to a terminal device, wherein the terminal device (UE) comprises: at least one of a relay terminal device (relay UE) and a remote terminal device (remote UE); wherein the relay parameters include: identification information for identifying a correspondence between the relay UE and the remote UE.

In the embodiment of the present invention, the network-side device may be a base station, or a network-side device in a core network, or a base station and a core network.

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

In the embodiment of the present invention, the wearable device has its own user identifier, such as the access number 136 x 1988, etc., and can connect to the network by itself to transmit data, but because the wearable device has a high requirement for power saving, it is desirable to have an ultra-long standby. Therefore, the wearable device is accessed to the network through the mobile terminal, the data is transferred to the wearable device through the Uu interface between the mobile terminal and the base station, the wearable device and the mobile terminal are close in distance, the sidelink link can be used for communication, the power consumption of the close-distance communication is far less than that of the communication between the wearable device 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 subjected to combined charging, the same flow package is shared, 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 the two UEs, so that the mobile terminal can easily identify the wearable device of the same user to provide service for the wearable device, and avoid non-allowed access of other users, and the wearable device can also conveniently find its own home mobile terminal, thereby avoiding the behavior of wasting electric quantity, such as performing search attempts on other UEs with similar functions. Therefore, in the embodiment of the present invention, a remote UE (e.g., wearable device, bracelet, watch, glasses, etc.) and a relay UE (e.g., mobile phone) need to perform a dedicated relay transmission service.

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

Therefore, the relay parameters are sent to the relay UE and/or the remote UE through the network side equipment, and the relay parameters comprise identification information for identifying the corresponding relation between the relay UE and the remote UE, so that the subsequent relay UE and the remote UE can establish a relay link according to the corresponding relation, and the relay transmission can be quickly and effectively established between the private terminal equipment.

Fig. 2 shows a flowchart of another configuration method of 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 in the network side device and software or hardware installed in the terminal device, and in an 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 a terminal device, where the relay parameter includes: and identification information for identifying the corresponding relationship between the relay terminal device and the remote terminal device.

In the embodiment of the present invention, the network-side device may be a base station, or may be a network device in a core network, or may also be a base station and a network device in a core network.

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

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

In the embodiment of the present invention, both the relay UE and the remote UE belong to an online user, and therefore, in a possible implementation, the relay parameter is determined by a configuration of a network side device. 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 indicate in their subscription information at least one of the following information:

the UE can be used as relay UE;

the UE can be used as remote UE;

the UE can provide relay service for specific user/users;

which specific user/users are required by the UE to provide relay service to me.

In this possible implementation, the subscription information may participate in subsequent authentication, charging, and other processes, for example, one operator UE1, where the number 136 x 1888 opens the relay function, another UE2, the number 136 x 1889 opens the remote function, and the two UEs are bound, that is, UE1 can only provide dedicated relay service for UE2, UE2 can only enjoy relay service through UE1, and the two UEs belong to shared charging. Then subsequently, when the two UEs perform authentication with the network, the relay function of the UE1 can pass through smoothly, and the remote function of the UE2 can also pass through smoothly. In charging aspect, the two UEs charge merge processing. That is, UE users are allowed to communicate as relay UEs and remote UEs, respectively, at the core network and operator level. Next, how to obtain the dedicated parameters under the network authorization condition is considered, which is more beneficial to the fast discovery and communication between two UEs.

In the possible implementation manner, the relay UE and the remote UE may perform the operations separately, 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 the configured relay parameters from the network side device by means of their own subscription function information and binding information, and in general, the relay parameters configured in this manner are static 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 their relay attribute parameters to a network side device, such as a base station, at the current location, and 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 in this implementation are generally valid only within the coverage of the base station.

In the embodiment of the invention, because the relay UE and the remote UE are in short-range communication under the common condition, the probability of belonging to the same cell is higher. Therefore, in another possible implementation, the terminal device makes a request to the home base station, configures the relay parameters by the home base station, and the relay parameters are valid only in the coverage area or the configured area of the home base station. Therefore, 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 manner of the sidelink for the first time, after the identities of the relay UE and the remote UE are confirmed, it is known that the relay UE and the remote UE need to maintain private discovery and relay communication with each other for a long time, and therefore, the relay UE can initiate a relay parameter configuration request to its own home base station by using a Radio Resource Control (RRC) process, so that 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 types of remote UEs that the relay UE can configure, and the attributes of the remote UEs 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 indicating Quality of Service (QoS) information of a Service transmitted between the relay UE and the remote UE. For example, the relay parameter configuration method may report based on typical service or service information with the highest requirement, so that a network side may configure a suitable relay parameter, for example, if the requirements for delay and block error rate are high, the requirement for physical resource period is short, and the interference and collision probability is low.

In the above possible implementation manner, the effective range of the relay parameter is valid under the current cell/base station, or valid within the configured area. The relay parameters are configured to be valid in the current cell/base station, that is, when the relay UE Connected/Idea/Inactive belongs to the current cell/base station, the configuration of the relay parameters is invalid once the relay UE is handed over or moves to another cell/base station, and the relay UE needs to apply for parameter configuration from the network again. Valid in the configured area means that the network may implicitly or explicitly inform the valid range when configuring relay parameters specific 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 several cell lists. Or, broadcasting cells with the same area id in a System Information Block (SIB), and belonging to the same effective area, when the relay UE moves, 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 parameters, the configuration continues to be effective, otherwise, the relay UE needs to request dedicated parameters again. In the above mobility procedure, only the relay UE's home is generally considered, because in some cases, the relay UE is connected to the network, and the remote UE is only attached to the network and is not directly connected to the network, and has the characteristic of group mobility.

In each possible implementation manner, the identifier in the identifier information may be an ID used for identifying a sidelink interface bottom layer or an ID used for identifying a sidelink service layer; the bottom layer identification ID can be an identification carried in a sidelink L1/L2 data packet, and can quickly identify the identity of the UE, and the high layer identification ID can be an identification carried in a service layer, and the identity of the UE can be identified only by solving a high layer data packet through a high layer process, so that the former is quick and the latter is reliable. In a specific implementation process, the Identifiers (IDs) may come from the core network node (with a larger range) or from the access network node (with a smaller range) according to different ranges of their functions, and are not limited in this embodiment of the present invention.

In each possible implementation manner, the relay parameter may further include: and safety parameters used for communication between the relay UE and the remote UE. Since the corresponding relationship between the relay UE and the remote UE is already determined during subscription, the network side device may include the dedicated security parameters in the relay parameters to respectively issue the relay UE and the remote UE. Among them, the security parameters include but are not limited to: after receiving the security parameters, the relay UE and the remote UE may use the security parameters in subsequent relay discovery and communication processes, which is convenient for quickly confirming identities of each other, and may prevent other UEs from being involved in 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 parameter may further include: in this embodiment, the relay discovery process includes: and the relay UE and the remote UE discover each other. 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 specified physical resources in the relay discovery process, and the power consumption and the complexity are reduced. In a specific implementation procedure, the physical resource used for the relay discovery procedure between the relay UE and the remote UE may be allocated by the base station through an RRC procedure.

The corresponding relationship indicated by the identification information may include one or more remote UEs, and when a plurality of remote UEs are included, that is, when the same relay UE corresponds to a plurality of remote UEs, physical resources used in relay discovery processes 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 the relay UE and the remote UE, and when configuring the relay parameters, the network side device may configure one relay UE to multiple remote UEs. The network side device may send the relay parameters separately for each relay UE and the remote UE, or the relay UE may request the relay parameters from the network side device, and then the relay UE distributes the relay parameters to each remote UE.

The corresponding relationship indicated by the identification information may also include one or more relay UEs, and when a plurality of relay UEs are included, that is, when a plurality of relay UEs correspond to one remote UE, the physical resources used for relay discovery between different relay UEs and the same remote UE are different.

For example, the above correspondence relationship may include N relay UEs and M remote UEs, where the 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 a support function and identity information between each relay UE and the remote UE, and when configuring the relay parameter, each UE of the network side device supports the function and identity information and configures the relay parameter. The network side device may send the relay parameters separately for each relay UE and the remote UE, or one of the relay UEs may request the network side device for the relay parameters, and then the relay UE distributes the relay parameters to each remote UE and each relay UE.

S214, the terminal equipment receives the relay parameters.

In the embodiment of the invention, if the relay UE and/or the remote UE indicate the relay or remote function in the subscription information, if the relay/remote function is not provided with an independent switch at the terminal equipment side, namely, after the UE is started, the function is automatically realized. When the UE is powered on, an initial connection is established with the network, an attach (attach) and a basic authentication process are performed, in the authentication process, in addition to the need to confirm the legal identity of the UE and allow access to the LTE/NR network, for the relay/remote UE, it is also necessary to additionally verify the validity of the relay/remote function, and in this verification process or after the verification is successful, the network side device may allocate relay parameters to the relay/remote UE, or the UE actively requests the network for dedicated configuration. 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 may allocate a dedicated parameter to the relay/remote UE from the network side, or the UE actively requests a dedicated configuration from 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 executed by a relay UE, in other words, the method may be executed by software or hardware installed in the relay UE, as shown in fig. 3, the method mainly includes the following steps:

s312, receiving a relay parameter, wherein 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 this 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 transmission in S112 and S212 described in fig. 1 and fig. 2, where a specific manner refers to the description in S112 and S212, and is not described herein again.

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

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

In one possible implementation manner, as described in S112 and S212 above, the network side device may be the relay parameter sent after receiving the relay parameter configuration request sent by the relay UE. Therefore, 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 universal sidelink Unicast manner, after confirming the identities of each other, it is known that the relay UE and the remote UE need to maintain private discovery and relay communication with each other for a long time, so that the relay UE may send a relay parameter configuration request to its home base station using an RRC procedure to request the base station to configure dedicated relay parameters with 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 acquire the relay parameters, and a relay link can be conveniently established between the remote UE and the subsequent remote UE.

For example, after the relay UE and the remote UE establish an initial connection in a universal sidelink Unicast manner, and after the relay UE requests relay parameters from the network side device, the relay UE may send the relay parameters to the remote UE through a connection with the remote UE, for example, PC5RRC, so that the remote UE can use the relay parameters conveniently. That is, when the relay UE and the remote UE establish a connection for the first time, a normal procedure is adopted, that is, a procedure without relay parameters is adopted, and the procedure may have a long time delay and a high complexity. Then, the relay UE acquires the exclusive 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 multiple relay UEs and/or multiple remote UEs, and therefore, 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 of the corresponding relationship except the current relay UE, so that each relay UE and each remote UE in the corresponding relationship can obtain the relay parameters, and a relay link can be established according to the relay parameters.

Therefore, by the relay link establishing method provided by the embodiment of the invention, the relay link is established between the relay UE and the remote UE 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 shows a flowchart of a relay link establishment method provided in an embodiment of the present invention, where the method 400 may be executed by a remote UE, in other words, the method may be executed 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 includes: 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 refer to the description of S112 and S212. Alternatively, the received relay parameters may also be sent by the relay UE, which may specifically refer to the description of relevant parts of fig. 1 to fig. 3.

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

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

Fig. 5 shows a flowchart of a relay link establishment method provided in an embodiment of the present invention, where the method 500 may be executed by a relay UE and a remote UE, in other words, the method may be executed 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 a relay parameter, where the relay parameter includes: 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 for the relay UE, as shown in fig. 5, before S512, the method may further include: s510: the network side device sends the relay parameter to the relay UE, which may specifically refer to the descriptions of S112 and S212, and is not described herein again.

S514, the remote UE receives the relay parameter.

The step is the same as S412, the relay parameter may be sent by the relay UE or the network-side device developed to the relay UE, and as shown in fig. 5, before S512, the method may further include: s513: the network side device sends the relay parameter to the relay UE, which may specifically refer to the descriptions of S112 and S212, or S520: the relay UE sends the relay parameter to the remote UE, which may be the description of the relevant part in the embodiment shown in fig. 3, and is not described herein again.

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

In one possible implementation, the establishing, by the relay UE, the relay link with the remote UE may include: s1, performing a relay discovery procedure between the relay UE and the remote UE based on the relay parameter, wherein the relay discovery procedure includes: s2, a process of the relay terminal device and the remote terminal device discovering each other; and establishing a relay link with the relay terminal equipment based on the result of the relay discovery process. Through the possible implementation mode, the relay discovery process is executed between the relay UE and the remote UE based on the relay parameters, and the opposite side can be rapidly and accurately discovered.

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

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

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

Optionally, the broadcast message may carry a relay information parameter of the relay UE, including but not limited to at least one of the following: an identity of the relay UE; feature configuration of the relay UE, such as transmission parameters/capabilities, status, etc.; relaying services that the UE may provide, such as relaying; the relay UE may serve which UEs, such as the remote UE ID. Or, the broadcast message may also carry possible packing (paging) information for the remote UE, for example, downlink data arrives (that is, data sent to the remote UE by the network side is received), or an important system message is updated, or a notification message from the base station, and the like.

When the relay parameter carries a security parameter, the information carried in the broadcast message may be subjected to security processing, such as encryption and/or integrity protection, using the security parameter, and only the remote UE receiving the relay parameter may correctly resolve the information.

And S13, based on the relay parameters, the remote UE receives the broadcast message or the measurement reference signal sent by the relay terminal equipment on the preset physical resource.

If the relay parameter indicates a physical resource used by the relay UE and the remote UE in the relay discovery process, the predetermined physical resource may be the physical resource indicated in the relay parameter, and if the relay parameter does not indicate the physical resource, the predetermined physical resource may be a common resource. That is, the remote UE only listens to the broadcast message or the measurement signal sent by the relay UE on the predetermined physical resource.

When the relay parameter carries a security parameter and the broadcast message carries a relay information parameter of the relay UE, the remote UE may perform security processing, such as decryption and/or integrity verification, using the security parameter, so as to obtain the information carried in the broadcast message.

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

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

For example, after the matching is successful, the remote UE may send an access request to the relay UE, camp under the relay UE, and wait for the called service and the calling service. Or, in order to ensure the reliability of the subsequent relay link establishment, 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 meets the condition of sidelink communication, if yes, may send the access request to the relay UE, and stay below the relay UE, wait for the called service and the calling service, and if not, the remote UE may select to turn on the function switch of its Uu interface, and stay below the base station. And when downlink service arrives at the remote UE, informing the remote UE through the relay UE. 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 and performs normal downlink data transmission. When uplink service arrives at the remote UE, the remote UE can send an access request to the relay UE at a specific position, the relay UE establishes a relay link with the remote UE after receiving the access request, and the remote initiates an establishment and service request to a base station through the relay UE, wherein the specific position can only be a position agreed in advance by the relay UE and the remote UE or a position having a certain binding relationship with a position broadcasted periodically by the relay UE.

And S17, the relay UE receives the 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 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 by the remote UE. In this possible implementation, the relay discovery process may include:

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

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

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

And 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 subsequently established relay link, before returning confirmation feedback 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 relay UE and the remote UE both meet the communication requirement, return the confirmation feedback of agreement to the relay UE. Similar to the above possible implementation manner, if the relay parameter includes a security parameter, the security parameter may be used to perform security processing on the communication information in this process, and the identification information in the relay parameter is used to perform identity recognition.

And S18, the remote UE receives the 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 transfers the 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, the remote UE may count time after sending the access request, and communicate with the base station if the acknowledgement feedback returned by the relay UE is not received within a predetermined time. For example, the remote UE may set a timer after sending the access request, and receive the acknowledgement feedback of the relay UE before the timer expires, and then perform the above procedure normally, and if the timer expires and no feedback of the relay UE is still received, consider that the link quality is too poor, the distance is too far, and the like, which is not suitable for the relay mode communication, and at this time, the remote UE may communicate with the base station directly.

By adopting the possible implementation mode, the remote UE sends the request only when required, thereby avoiding the periodic search of the relay UE and saving the expense.

In each possible implementation manner, the relay parameter may further include: and safety parameters used for communication between the relay UE and the remote UE. Since the corresponding relationship between the relay UE and the remote UE is already determined during subscription, the network side device may include the dedicated security parameters in the relay parameters to respectively issue the relay UE and the remote UE. Among them, the security parameters include but are not limited to: after receiving the security parameters, the relay UE and the remote UE may use the security parameters in subsequent relay discovery and communication processes, which is convenient for quickly confirming identities of each other, and may prevent other UEs from being involved in transmission of the sidelink relay. In this possible implementation manner, the relay UE and the remote UE encrypt or decrypt communication data with the opposite end according to the security parameter in the relay parameter. In a specific implementation, the security parameters may be assigned by the core network node.

In each possible implementation manner, optionally, the relay parameter may further include: in this embodiment, the relay discovery process includes: and the relay UE and the remote UE discover each other. In this possible implementation, the relay UE and the remote UE perform a relay discovery procedure on a predetermined physical resource 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 specified physical resources in the relay discovery process, and the power consumption and the complexity are reduced. In a specific implementation procedure, the physical resource used for the relay discovery procedure between the relay UE and the remote UE may be allocated by the base station through an RRC procedure.

The corresponding relationship indicated by the identification information may include one or more remote UEs, and when a plurality of remote UEs are included, that is, when the same relay UE corresponds to a plurality of remote UEs, physical resources used in relay discovery processes 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 the relay UE and the remote UE, and when configuring the relay parameters, the network side device may configure one relay UE to multiple remote UEs. The network side device may send the relay parameters separately for each relay UE and the remote UE, or the relay UE may request the relay parameters from the network side device, and then the relay UE distributes the relay parameters to each remote UE. Then, the relay UE actively triggers, so that the remote UE can conveniently obtain the relay E information and paging and updating messages possibly from the network; or the remote UE actively initiates a request, and the relay UE relays the service for the remote UE. The physical resources used for the relay discovery process between each remote UE and the same relay UE may be different, or, in order to improve the resource utilization, the physical resources used for the relay discovery process between different remote UEs and the same relay UE are the same.

For example, the above correspondence relationship may include N relay UEs and M remote UEs, where the 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 a support function and identity information between each relay UE and the remote UE, and when configuring the relay parameter, each UE of the network side device supports the function and identity information and configures the relay parameter. The network side device may send the relay parameters separately for each relay UE and the remote UE, or one of the relay UEs may request the network side device for the relay parameters, and then the relay UE distributes the relay parameters to each remote UE and each relay UE. Then, the relay UE actively triggers, if the relay UE is a plurality of relay UEs, physical resources used for relay discovery process of different relay UEs need to be separated, and remote UE can conveniently obtain information of each relay UE and paging and updating messages and the like possibly from a network; in a specific application, when the remote UE has no service to transmit, one relay UE may be selected to monitor, for example, the relay UE with the best channel quality is selected, or selected according to a configuration rule. Or wait until the remote UE initiates the request actively, and the received relay UE transfers service to the remote UE, and if more than one relay UE responds, the remote UE may select one or more relay UEs to serve.

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

According to the embodiment of the invention, the invention also provides the network side equipment.

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

The sending module 610 is 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 identification information for identifying the corresponding relationship between the relay terminal device and the remote terminal device.

The network side device 600 in the embodiment of the present invention may refer to a process executed by the network side device in the method 100 corresponding to the embodiment of the present invention, and each unit/module and the other operations and/or functions in the network side device 600 are respectively for implementing the corresponding process in the method 100 and achieving the same or equivalent technical effects, and for brevity, no further description is provided herein.

In a possible implementation manner, the network side device 600 may further include a first receiving module, configured to receive relay attribute information reported by the terminal device before the sending module sends the relay parameter to 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 far-end terminal device, and/or the terminal device can be used as a terminal device identifier of the relay terminal device or the far-end terminal device.

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

In one possible implementation, the relay parameter further includes: security parameters used for communication between the relay terminal device and the remote terminal device; and/or, the relay terminal device and the remote terminal device perform a relay discovery process using physical resources, wherein the relay discovery process includes: and the relay terminal equipment and the remote terminal equipment discover each other.

In a possible implementation manner, the correspondence includes a plurality of the 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 the 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 identifier of the relay terminal device and the identifier of the remote terminal device, or the identifier of the relay link.

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 effect, and is not described herein again to avoid repetition.

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 device and the remote terminal device; 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, configured to execute a relay discovery procedure with the remote 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 discover each other; a first establishing unit, configured to establish a relay link with the remote terminal device based on a result of the relay discovery process.

In a possible implementation manner, the first performing unit may perform 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 a possible implementation manner, the broadcast message carries information of at least one of the following: the identifier of the relay terminal device, the feature configuration of the relay terminal device, the services that the relay terminal device can provide, and the identifier of the remote terminal device that can serve as the relay terminal device.

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

In one possible implementation, the first execution unit executes a relay discovery procedure with the remote terminal device by: and executing a relay discovery process with the remote terminal equipment on a predetermined physical resource indicated by the relay parameter, wherein the predetermined 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 includes a plurality of the 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 relationship comprises a plurality of relay terminal devices, wherein the 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: a sending module, configured to send the relay parameter to the remote terminal device after the first receiving module 710 receives the relay parameter.

In one possible implementation, the relay UE 700 may further include: and the first security processing module is configured to, after the first receiving module receives the relay parameter, perform security processing on communication data with the remote terminal device according to a security parameter in the relay parameter, where the security parameter is a security parameter for performing communication between the relay terminal device and the remote terminal device.

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

The relay UE 700 according to the embodiment of the present invention may refer to the flows executed by the relay UE in the method embodiments described in fig. 3 and fig. 5 in the embodiment of the present invention, and each unit/module and the other operations and/or functions in the relay UE 700 respectively implement the flows executed by the relay UE in the method embodiments shown in fig. 3 and fig. 5, and may achieve the same or equivalent technical effects, and for brevity, are not described again here.

Fig. 8 shows a schematic structural diagram of a remote UE according to an embodiment of the present invention, and 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; 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 discover each other; a second establishing unit, configured to establish a relay link with the relay terminal device based on a result of the relay discovery process.

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

In one possible implementation manner, the second performing unit may perform 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 predetermined 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 not receiving the confirmation feedback returned by the relay terminal equipment within the preset time after sending the access request to the relay terminal equipment on the preset physical resource, and directly communicating with the base station.

In one possible implementation manner, the second performing unit may perform 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 predetermined physical resource indicated by the relay parameter, wherein the predetermined physical resource is a physical resource used by the relay terminal equipment and the remote terminal equipment for the relay discovery process.

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

In one possible implementation, the remote UE 800 may further include: and the second safety processing module is used for carrying out safety processing on communication data between the relay terminal equipment and the remote terminal equipment according to safety parameters in the relay parameters after receiving the relay parameters, wherein the safety parameters are used for carrying out 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 effect, and for avoiding repetition, details are not repeated 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. Various components in mobile terminal 900 are coupled together by bus system 905. It is understood that the bus system 905 is used to enable communications among the components. The bus system 905 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 9 as bus system 905.

The mobile terminal 900 shown in fig. 9 may be used as the relay UE or the remote UE in the foregoing embodiments, and implement the various processes implemented by the relay UE or the remote UE in the foregoing embodiments.

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

It is to be understood that the memory 902 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM ), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 902 of the systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded 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, and is configured to implement various basic services and process hardware-based tasks. The application 9022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. A program implementing the method of an embodiment of the present invention may be included in application 9022.

In this 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 may be the relay UE or the remote UE described in the above embodiments, and when being the relay UE, the computer program is executed by the processor 901 to implement the following steps: receiving relay parameters, wherein the relay parameters comprise: identification information for identifying the correspondence between the relay terminal device and the remote terminal device; and establishing a relay link with the remote terminal equipment based on the relay parameters. When acting as a remote UE as described above, the computer program when executed by the processor 901 performs the steps of: receiving relay parameters, wherein the relay parameters comprise: 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 embodiments of the present invention may be applied to the processor 901, or implemented by the processor 901. The processor 901 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 901. The Processor 901 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed 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 directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and combines the hardware to complete the steps of the above method. 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 as described above with respect to fig. 1 to 5.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. 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 may be executed by the processor 901 to further implement the following processes implemented by the relay UE in the method embodiments shown in fig. 3 and fig. 5, and when the mobile terminal 900 is used as the remote UE, the computer program may be executed by the processor 901 to further implement the following processes implemented by the remote UE in the method embodiments shown in fig. 4 and fig. 5, and the same or equivalent technical effects may be achieved, and are not described herein again to avoid repetition.

Referring to fig. 10, fig. 10 is a structural diagram of a network side device applied in the embodiment of the present invention, which can implement details of a relay parameter configuration method in the method embodiments shown in fig. 1 and fig. 2, and achieve the same effect. As shown in fig. 10, the network-side device 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004, and a bus interface, wherein:

in this embodiment of the present invention, the network side device 1000 further includes: a computer program stored in the memory 1003 and executable on the processor 1001, wherein the computer program when executed by the processor 1001 implements the steps of the network side device in the embodiments of the methods described in fig. 1 and 2.

In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements including a transmitter and a receiver that provide 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 a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

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

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of each method embodiment shown in fig. 1 to 5, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for configuring relay parameters is performed by a network side device, and the method comprises the following steps:

transmitting relay parameters 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 identification information for identifying the corresponding relationship between the relay terminal device and the remote terminal device.

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

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

3. The method of claim 1, wherein prior to transmitting relay parameters to a 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.

4. The method of any of claims 1 to 3, wherein the relay parameters further comprise: security parameters used for communication between the relay terminal device and the remote terminal device; and/or, the relay terminal device and the remote terminal device perform a relay discovery process using physical resources, wherein the relay discovery process includes: and the relay terminal equipment and the remote terminal equipment discover each other.

5. The method of claim 4,

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

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

6. The method of any of claims 1 to 3, wherein the identification information comprises: the identifier of the relay terminal device and the identifier of the remote terminal device, or the identifier of the relay link.

7. A relay link establishment method, performed by a relay terminal device, the method comprising:

receiving relay parameters, wherein the relay parameters comprise: identification information for identifying the correspondence between the relay terminal device and the remote terminal device;

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

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

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

establishing a relay link with the remote terminal device based on a result of the relay discovery process.

9. The method of claim 8, 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.

10. The method of claim 9, wherein the broadcast message carries information of at least one of: the identifier of the relay terminal device, the feature configuration of the relay terminal device, the services that the relay terminal device can provide, and the identifier of the remote terminal device that can serve as the relay terminal device.

11. The method of claim 8, 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 predetermined physical resource based on the relay parameter;

and returning confirmation feedback to the remote terminal equipment.

12. The method according to any of claims 8 to 11, 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 predetermined physical resource indicated by the relay parameter, wherein the predetermined physical resource is a physical resource used by the relay discovery process between the relay terminal equipment and the remote terminal equipment.

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

14. The method of claim 7, wherein after receiving relay parameters, the method further comprises:

and sending the relay parameters to the remote terminal equipment.

15. The method of any of claims 7 to 11, and 14, 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 safety parameters in the relay parameters, wherein the safety parameters are safety parameters for communication between the relay terminal equipment and the remote terminal equipment.

16. The method of any of claims 7 to 11, and 14, wherein the identification information comprises: the identification information of the relay terminal device and the identification information of the remote terminal device, or the relay link identification.

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

receiving relay parameters, wherein the relay parameters comprise: 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.

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

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

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

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

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

and sending an access request to the relay terminal equipment.

20. The method of claim 18, 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 predetermined physical resource;

and receiving confirmation feedback returned by the relay terminal equipment.

21. The method of claim 20, wherein after transmitting 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.

22. The method according to any of claims 18 to 20, wherein performing a relay discovery procedure with the relay terminal device based on the relay parameters comprises:

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

23. The method of any one of claim 22,

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

24. The method of any of claims 17 to 20, wherein receiving relay parameters comprises:

receiving the relay parameters sent by the network side equipment; alternatively, the first and second electrodes may be,

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

25. The method of any of claims 17 to 20, wherein after receiving relay parameters, the method further comprises:

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

26. The method of any of claims 17 to 20, wherein the identification information comprises: the identifier of the relay terminal device and the identifier of the remote terminal device, or the identifier of the relay link.

27. A network-side device, comprising:

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;

28. A relay terminal device, characterized by comprising:

a first receiving module, configured to receive a relay parameter, where the relay parameter includes: identification information for identifying the correspondence between the relay terminal device and the remote terminal device;

and the first establishing module is used for establishing a relay link with the remote terminal equipment based on the relay parameter.

29. A remote terminal device, comprising:

a second receiving module, 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.

30. A network-side device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of configuring relay parameters according to any one of claims 1 to 6.

31. 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 when executed by the processor implementing:

a step of the relay link establishment method according to any one of claims 7 to 16; or

The steps of the method as claimed in any one of claims 17 to 26 for relay link establishment.

32. A computer-readable storage medium, having a computer program stored thereon, which when executed by a processor, implements:

a step of the configuration method of relay parameters according to any one of claims 1 to 6; alternatively, the first and second electrodes may be,