CN106162676A

CN106162676A - A kind of equipment direct communication system relay state determines method and device

Info

Publication number: CN106162676A
Application number: CN201510134755.5A
Authority: CN
Inventors: 陈琳; 李大鹏; 黄莹; 罗薇
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-03-25
Filing date: 2015-03-25
Publication date: 2016-11-23
Also published as: WO2016150107A1

Abstract

The invention discloses a kind of equipment direct communication system relay state and determine method and apparatus.Described method includes: trunk subscriber equipment UE obtains link deployment information and/or receives device-to-device D2D information, determines the relay state of relaying UE according to described link deployment information and/or D2D information.Described device is positioned at trunk subscriber equipment UE, including data obtaining module and state determining module.The method and apparatus being proposed by the embodiment of the present invention, the UE possessing relay capabilities can enter relaying the second state when not having remote subscriber to access, enter first state of relaying when receiving after remote subscriber finds the request relaying, periodic broadcast relay information, realize the switching of relaying UE relay state in this way, the purpose of economize on electricity can be reached when relaying UE and being in relaying the second state.

Description

A kind of equipment direct communication system relay state determines method and device

Technical field

The present invention relates to wireless communication technology field, be specifically related to a kind of equipment direct communication system relay state true Determine method and device.

Background technology

With the development of wireless multimedia service, people are to the demand of high data rate and Consumer's Experience day by day Increase, thus high requirement is proposed to the power system capacity and covering of conventional cellular network.On the other hand public Safety, social networks, the closely application scenarios such as data sharing, local advertising make people to understanding altogether Neighbouring persons or things the demand communicating are gradually increased.Traditional cellular network centered on base station There is obvious limitation in terms of the support of high data rate and adjacent service, at this requirement background Under, represent future communication technologies development new direction D2D (Device-to-Device, device-to-device or Title equipment leads directly to) technology arises at the historic moment.The application of D2D technology, can mitigate cellular network burden, Reduce the battery power consumption of user equipment, improve data rate, and improve the robustness of network infrastructure, Meet the requirement of above-mentioned high data rate traffic and adjacent service well.Current D2D technology is also referred to as Adjacent service (Proximity Services, ProSe), monolateral link (Sidelink, SL).

D2D technology can be operated in mandate frequency range or unauthorized frequency range, it is allowed to multiple support D2D functions User equipment (i.e. D2D user equipment, D2D User Equipment, D2D UE) is having network foundation Facility or without directly finding in the case of network infrastructure and/or directly communicating.The applied field of D2D Scape mainly has three kinds:

1) UE1 and UE2 carries out data interaction under the covering of cellular network, user face data without Network infrastructure, such as the scene 1 of Fig. 1；

2) the UE relay transmission in weak overlay area or without overlay area, such as the scene 2 in Fig. 1, permits Permitted the poor UE4 of signal quality to be communicated with network by the neighbouring UE3 having the network coverage, can be helped Operator spreads over, improves capacity；

3) there is earthquake or emergency, in the case of cellular network cisco unity malfunction, it is allowed to equipment Between directly communicate, such as the scene 3, UE5 in Fig. 1, between UE6 and UE7, chain of command and user face are not Carry out the data communication of a jump or multi-hop through network infrastructure.

D2D technology generally includes D2D discovery technique and the D2D communication technology, and wherein, D2D finds skill Whether art refers to for judging or determining first user equipment adjacent to the technology of the second user equipment.Generally, The other side can be found by sending or receiving discovery signal (discovery information) between D2D user equipment；D2D The communication technology refers to that between D2D user equipment, part or all of communication data can not be set by network foundation The technology executed and directly communicate.

For the corresponding UE of scene 2 in Fig. 1 to network trunk (UE-to-Network Relay) scene, Described UE3 can use existing LTE mode communication with network side, is also used as relaying simultaneously and covers The terminal (UE4 in diagram) of (out of coverage) uses D2D mode communication, these modes outward Including D2D discovery (Discovery) and/or D2D communication (communication).If outside Fu Gaiing Or the terminal UE of dtr signal 4 sends the data to base station by the terminal UE 3 in covering, then I To call UE4 be remote subscriber (Remote UE), UE3 is trunk subscriber (Relay UE).Class As, for scene 3 corresponding UE-to-UE Relay scene, UE6 can be between UE5 and UE7 Forward packet, then UE6 can be referred to as trunk subscriber, and UE5 and UE7 can be referred to as remote subscriber.

It is complete that prior art does not provide system to scene 2 and scene 3 relay transmission pattern relay state mechanism Kind solution.

Content of the invention

The technical problem to be solved in the present invention be to provide a kind of equipment direct communication system relay state determine method and Device.

In order to solve above-mentioned technical problem, the invention provides a kind of equipment direct communication system relay state and determine Method, comprising:

Trunk subscriber equipment UE obtains link deployment information and/or receives device-to-device D2D information, root Determine the relay state of relaying UE according to described link deployment information and/or D2D information.

Further, described relaying UE obtains link deployment information, comprising:

Described relaying UE receives that base station sends or that closely service function sends link deployment information, Or described relaying UE obtains self pre-configured link deployment information；

Described link deployment information includes at least one herein below: relaying finds resource or resource pool information, Trunking traffic resource or resource pool information, the activation instruction of relay function, the deactivation instruction of relay function, Relaying economize on electricity enables instruction, and instruction, relay activity condition timer, far-end UE activity are forbidden in relaying economize on electricity Condition timer.

Further, described relaying discovery resource or resource pool information include: relaying discovery send resource or Resource pool, relaying discovery receives resource pool；Described trunking traffic resource or resource pool information include: relaying Communication sends resource or resource pool, and trunking traffic receives resource pool.

Further, described relaying discovery sends resource or resource pool includes at least one herein below: have Cover D2D discovery and send resource or resource pool, send resource pool without covering D2D discovery；Described middle secondary Now receive resource pool to include: have covering D2D discovery to receive resource pool, and receive without covering D2D discovery Resource pool；Wherein: described have covering D2D discovery to receive the D2D that resource pool includes relaying UE Serving cell Discovery sends resource pool and the corresponding D2D in the adjacent area discovery of relaying UE Serving cell sends resource pool.

Further, described link deployment information also includes one or more of herein below: relay first Status monitoring cycle, monitoring vertical shift, monitoring sub-frame offset, monitoring duration.

Further, described relaying UE determines the relay state of relaying UE, bag according to link deployment information Include:

Described link deployment information includes: relay function activates instruction, and described relaying UE performs relay function； Or

Described link deployment information includes: relay function deactivates instruction, during described relaying UE no longer performs Continue function；Or

Described link deployment information includes: relaying economize on electricity enables instruction, and described relaying UE is according to described relaying Configuration information enters relaying the first state；Or

Described link deployment information includes: instruction is forbidden in relaying economize on electricity, and described relaying UE is according to described relaying Configuration information enters relaying the second state.

Further, described relaying UE is according to described link deployment information and/or D2D information, in determination Continue the relay state of UE, comprising:

Described relaying UE enters relaying the after receiving the D2D information of the discovery relaying that far-end UE sends Two-state；Or,

Described relaying UE receive far-end UE send discovery relaying D2D information after, with described far End UE interacts, and after being connected with described far-end UE foundation, enters relaying the second state.

Further, after described relaying UE receives the D2D information of the discovery relaying that far-end UE sends, Interact with described far-end UE, after being connected with described far-end UE foundation, enter relaying the second state, Including:

Described relaying UE receive far-end UE send discovery relaying D2D information after, to described far Hold UE to send discovery relaying response D2D information, build in the relay connection receiving described far-end UE transmission After vertical request, sending relay connection to described far-end UE and setting up information, described relaying UE enters relaying the Two-state.

Further, described relaying UE is according to link deployment information and D2D information, determines relaying UE Relay state, comprising:

Described relaying UE starts described relay activity condition timer when entering relaying the second state, works as institute When stating relay activity condition timer time-out, described relaying UE enters relaying the first state.

Further, after described relaying UE starts described relay activity condition timer, described method is also wrapped Include:

Occurring following event arbitrarily for the moment, described relaying UE restarts the timing of described relay activity state Device:

Receive any one far-end UE having accessed and be sent to the D2D communication information of described relaying UE； Receive the D2D discovery information that any one far-end UE having accessed sends；Described relaying UE is to connecing Any one far-end UE entering sends the D2D communication information.

Described relaying UE, when far-end UE accesses, is that described far-end UE arranges and starts corresponding activity Condition timer；

When the active state timer expiry of described far-end UE, described relaying UE release and described far-end The connection of UE；Or when the active state timer expiry of described far-end UE, described relaying UE to Described far-end UE sends D2D information or the paging information of discovery far-end UE, if in the scheduled time Inside do not receive the response message that described far-end UE sends, then described relaying UE release and described far-end The connection of UE；

When described relaying UE receives the connection release request information that the far-end UE having accessed sends, then stop The only corresponding active state timer of described far-end UE, the connection of release and described far-end UE；

Described relaying UE enters relaying the first state after the connection of all far-end UE having accessed of release.

Further, described relaying UE is that described far-end UE arranges and starts the timing of corresponding active state After device, described method also includes:

Occurring following event arbitrarily for the moment, described relaying UE restarts the corresponding activity of described far-end UE Condition timer:

Receive described far-end UE and be sent to relay the D2D communication information of UE；Receive described far-end The D2D discovery information that UE sends；Described relaying UE sends the D2D communication information to described far-end UE.

Further, it is determined that the relay state of described relaying UE is relaying the first state, described method is also wrapped Include: be in the relaying UE of relaying the first state and perform the one in following operation:

Receive the D2D information of the discovery relaying that far-end UE sends；

Receive the D2D information of the discovery relaying that far-end UE sends, interact with described far-end UE, Set up with described far-end UE and be connected.

Further, it is determined that the relay state of described relaying UE is relaying the second state, described method is also wrapped Include: be in the relaying UE of relaying the second state and perform one or more in following operation:

Periodically send repeat broadcast information；

Receive and not yet access the D2D information finding relaying that the far-end UE of described relaying UE sends；

Access the D2D discovery information that the far-end UE of described relaying UE sends；

Access the D2D communication information that the far-end UE of described relaying UE sends；

Send the D2D communication information to the far-end UE having accessed described relaying UE.

Further, described method also includes: the far-end UE not yet accessing described relaying UE receives everywhere After the repeat broadcast information that the relaying UE of second state that relays sends, select relaying a UE, Xiang Xuan In relaying UE send relay connection set up request, described relaying UE receive described relay connection foundation After request, send relay connection to described far-end UE and set up information.

Further, after described relaying UE determines the relay state of relaying UE, described method also includes: Described relaying UE reports the relay state of relaying UE to base station.

In order to solve above-mentioned technical problem, present invention also offers a kind of equipment direct communication system relay state true Determine device, be positioned at trunk subscriber equipment UE, including data obtaining module and state determining module, wherein:

Described data obtaining module, is used for obtaining link deployment information and/or receives device-to-device D2D letter Breath；

Described state determining module, for determining relaying according to described link deployment information and/or D2D information The relay state of UE.

Further, described data obtaining module obtains link deployment information, comprising:

Described data obtaining module receives that base station sends or that closely service function sends link deployment Information, or the link deployment information that the described relaying UE of described data obtaining module acquisition is pre-configured.

Further, described state determining module determines the relaying shape of relaying UE according to link deployment information State, comprising:

Further, described state determining module is according to described link deployment information and/or D2D information, really Surely the relay state of UE is relayed, comprising:

Described state determining module determines institute after receiving the D2D information finding relaying that far-end UE sends State relaying UE and enter relaying the second state；Or,

After described state determining module receives the D2D information of the discovery relaying that far-end UE sends, with institute State far-end UE to interact, after described relaying UE and described far-end UE set up and be connected, determine described Relaying UE enters relaying the second state.

Further, described state determining module receives the D2D letter of the discovery relaying that far-end UE sends After breath, interact with described far-end UE, after described relaying UE and described far-end UE set up and are connected, Determine that described relaying UE enters relaying the second state, comprising:

After described state determining module receives the D2D information of the discovery relaying that far-end UE sends, to institute State far-end UE and send discovery relaying response D2D information, receive the relaying of described far-end UE transmission even After connecing foundation request, send relay connection to described far-end UE and set up information, determine that described relaying UE enters Enter relaying the second state.

Further, described state determining module is according to link deployment information and D2D information, determines relaying The relay state of UE, comprising:

Described state determining module starts described relaying and lives when described relaying UE enters relaying the second state Dynamic condition timer, when described relay activity condition timer time-out, in determining that described relaying UE enters Continue the first state.

Further, described state determining module is additionally operable to after starting described relay activity condition timer, Judge if it occur that following event one of arbitrarily, then restarts described relay activity condition timer:

Described state determining module, when far-end UE accesses described relaying UE, is that described far-end UE is arranged And start corresponding active state timer；When the active state timer expiry of described far-end UE, logical Know the connection of described relaying UE release and described far-end UE；Or the active state as described far-end UE During timer expiry, described state determining module sends the D2D of discovery far-end UE to described far-end UE Information or paging information, if not receiving the response letter that described far-end UE sends in the given time Breath, then notify the connection of described relaying UE release and described far-end UE；When described state determining module connects Receive the connection release request information that the far-end UE having accessed sends, then stop described far-end UE corresponding Active state timer, notifies the connection of described relaying UE release and described far-end UE；At described relaying After the connection of all far-end UE having accessed of UE release, described state determining module determines described relaying UE Enter relaying the first state.

Further, described state determining module is additionally operable to arranging for described far-end UE and starting corresponding After active state timer, it is judged that if it occur that following event one of arbitrarily, then restarts described far-end UE pair The active state timer answered:

Further, described state determining module determines that the relay state of described relaying UE is relaying the first shape State, described device also includes the first module, for performing the one in following operation:

Receive the D2D information of the discovery relaying that far-end UE sends；

Further, described state determining module determines that the relay state of described relaying UE is relaying the second shape State, described device also includes the second module, for performing one or more in following operation:

Periodically send repeat broadcast information；

Further, described second module is additionally operable to: receiving the far-end not yet accessing described relaying UE After the relay connection that UE sends sets up request, send relay connection to described far-end UE and set up information.

Further, described device also includes reporting module, and it is for determining at described state determining module After the relay state of relaying UE, report the relay state of described relaying UE to base station.

The method and apparatus being proposed by the embodiment of the present invention, the UE possessing relay capabilities can be not far Enter relaying the second state when end subscriber accesses, find the laggard of the request relaying when receiving remote subscriber Enter relaying the first state, periodic broadcast relay information, realize relaying UE relaying shape in this way The switching of state, can reach the purpose of economize on electricity when relaying UE and being in relaying the second state.

Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective of Bright book becomes apparent, or is understood by implementing the present invention.The purpose of the present invention is excellent with other Point can be realized by structure specifically noted in specification, claims and accompanying drawing and obtain.

Brief description

Accompanying drawing is used for providing being further appreciated by technical solution of the present invention, and constitutes one of specification Point, it is used for explaining technical scheme together with embodiments herein, be not intended that to the present invention The restriction of technical scheme.

Fig. 1 equipment direct communication system discovery/communication scheme；

Fig. 2 is that the embodiment of the present invention 1 equipment direct communication system relay state determines method schematic diagram；

Fig. 3 is that the embodiment of the present invention 2 equipment direct communication system relay state determines device schematic diagram；

Fig. 4 is present device direct communication system relay state transition diagram；

Fig. 5 is the flow chart that application example 1 base station configuration via node enables economize on electricity；

Fig. 6 is the flow chart that application example 2 base station configuration via node goes to enable economize on electricity；

Fig. 7 is that application example 3 relays the flow process that UE enters relay activity state from relaying inactive state Figure；

Fig. 8 is that application example 4 relays the flow process that UE enters relay activity state from relaying inactive state Figure；

Fig. 9 is application example 5 far-end UE relay activity state-maintenance flow chart；

Figure 10 is that application example 6 relays UE from relaying active state to the flow process of relaying inactive state Figure；

Figure 11 is that application example 7 relays UE from relaying active state to the flow process of relaying inactive state Figure；

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen Embodiment in please and the feature in embodiment can mutually be combined.

Can be at the computer of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing System performs.And, although show logical order in flow charts, but in some cases, Shown or described step can be performed with the order being different from herein.

Embodiment 1

The present embodiment describes a kind of equipment direct communication system relay state and determines method, as shown in Figure 2, comprising:

Step 10, relaying UE obtains link deployment information and/or receives device-to-device D2D information；

Relaying UE receives base station sends or closely service function (ProSe function) entity transmission Link deployment information, or described relaying UE obtains self pre-configured link deployment information；

Described link deployment information includes at least one herein below: relaying finds resource or resource pool information, Trunking traffic resource or resource pool information, the activation instruction of relay function, the deactivation instruction of relay function, Relaying economize on electricity enables instruction, and instruction, relay activity condition timer, far-end UE activity are forbidden in relaying economize on electricity Condition timer.Wherein, described relaying discovery resource or resource pool information include: relaying discovery sends money Source or resource pool, relaying discovery receives resource pool；Described trunking traffic resource or resource pool information include: Trunking traffic sends resource or resource pool, and trunking traffic receives resource pool.Described relaying discovery sends resource Or resource pool includes at least one herein below: there is covering D2D discovery to send resource or resource pool, without covering Lid D2D discovery sends resource pool；Described relaying discovery receives resource pool and includes: have covering D2D discovery to connect Receive resource pool, and receive resource pool without covering D2D discovery；Wherein: described have covering D2D discovery to connect Receive resource pool and include that the D2D discovery of relaying UE Serving cell sends resource pool and relaying UE service is little The corresponding D2D in the adjacent area discovery in district sends resource pool.

Preferably, described link deployment information also includes one or more of herein below: relay the first shape State listening period, monitoring vertical shift, monitoring sub-frame offset, monitoring duration.

Step 20, determines the relay state of relaying UE according to described link deployment information and/or D2D information.

Preferably, according to self preconfigured information startup relay function and/or determine relaying UE's at UE After relay state, described relaying UE reports UE be carrying out relay function and/or relay UE's to base station Relay state.

● application 1:

This application is to determine the relay state of relaying UE according to link deployment information, including following several feelings Condition:

If link deployment information includes that relay function activates instruction, described relaying UE performs relay function；

If link deployment information includes that relay function deactivates instruction, described relaying UE does not perform to relay work( Energy；

If link deployment information includes that relaying economize on electricity enables instruction, then perform the relaying UE root of relay function Enter relaying the first state according to described link deployment information；

If link deployment information includes that instruction is forbidden in relaying economize on electricity, then perform the relaying UE root of relay function Enter relaying the second state according to described link deployment information.

Relay function in link deployment information activates and deactivate instruction can be by the side of display or implicit expression Formula indicates.As explicitly indicated by the IE field in RRC information or MAC CE or UE obtains Get the i.e. implicit indication of link deployment information and activate relay function, if in the reconfiguration message that receives of UE not Comprise link deployment information again, then implicit indication deactivates relay function.

● application 2:

This application be relaying UE according to described link deployment information and/or D2D information, from relaying the first shape State enters the application of relaying the second state, including one of situations below:

Situation one, described relaying UE is straight after receiving the D2D information finding relaying that far-end UE sends Tap into into relaying the second state；

Situation two, after described relaying UE receives the D2D information of the discovery relaying that far-end UE sends, Interact with described far-end UE, after being connected with described far-end UE foundation, enter relaying the second state.

Specifically, after described relaying UE receives the D2D information of the discovery relaying that far-end UE sends, Send discovery relaying response D2D information to described far-end UE, in receiving described far-end UE transmission After connection establishment request, sending relay connection to described far-end UE and setting up information, described relaying UE enters Enter relaying the second state.

● application 3:

This application be relaying UE according to link deployment information and D2D information, enter from relaying the second state Relay the application of the first state, including one of situations below:

Situation one, described relaying UE starts the timing of described relay activity state when entering relaying the second state Device, when described relay activity condition timer time-out, described relaying UE enters relaying the first state.

Preferably, after described relaying UE starts described relay activity condition timer, there is following event Arbitrarily for the moment, described relaying UE restarts described relay activity condition timer: receive accessed times The far-end UE that anticipates is sent to the D2D communication information of described relaying UE；Receive accessed any one The D2D discovery information that far-end UE sends；Described relaying UE sends out to any one far-end UE having accessed Send the D2D communication information.

Situation two, described relaying UE when far-end UE accesses, be described far-end UE arrange and start right The active state timer answered；When the active state timer expiry of described far-end UE, described relaying UE release and the connection of described far-end UE；Relaying UE also can be at the active state timer of far-end UE During time-out, send D2D information or the paging information of discovery far-end UE to described far-end UE, if Do not receive in the given time far-end UE send response message, then described relaying UE discharge with described The connection of far-end UE；When described relaying UE receives the Connection Release that the far-end UE that accessed sends please Seeking information, then stopping the corresponding active state timer of described far-end UE, release is with described far-end UE's Connect；Described relaying UE enters relaying the first state after the connection of all far-end UE having accessed of release.

Preferably, described relaying UE is that described far-end UE arranges and starts corresponding active state timer After, occurring following event arbitrarily for the moment, described relaying UE restarts the corresponding activity of described far-end UE Condition timer: receive described far-end UE and be sent to relay the D2D communication information of UE；Receive The D2D discovery information that described far-end UE sends；Described relaying UE sends D2D to described far-end UE The communication information.

It from the point of view of another angle, is in the relaying UE of relaying the first state and performs the one in following operation:

(1) the D2D information of the discovery relaying that far-end UE sends is received；

(2) receive the D2D information of the discovery relaying that far-end UE sends, carry out with described far-end UE Alternately, it is connected with described far-end UE foundation.

Specifically, after receiving the D2D information of the discovery relaying that far-end UE sends, to described far-end UE Send discovery relaying response D2D information；Receive the relay connection foundation request that described far-end UE sends After, send relay connection to described far-end UE and set up information.

It is in the relaying UE of relaying the second state and perform one or more in following operation:

(1) repeat broadcast information is periodically sent；

Not yet access the far-end UE of described relaying UE to receive and be in the relaying UE of relaying the second state and send out After the repeat broadcast information sent, select a relaying UE, send relay connection to the relaying UE choosing and build Vertical request, after described relaying UE receives the foundation request of described relay connection, sends to described far-end UE Relay connection sets up information.

(2) the D2D information of the discovery relaying of the far-end UE transmission not yet accessing described relaying UE is received；

(3) the D2D discovery information that the far-end UE of described relaying UE sends has been accessed；

(4) the far-end UE having accessed described relaying UE is sent to the D2D of described relaying UE The communication information；

(5) the D2D communication information is sent to the far-end UE having accessed described relaying UE.

Embodiment 2

The present embodiment describes a kind of equipment direct communication system relay state and determines device, and this device is positioned at relaying and uses Family equipment UE, as it is shown on figure 3, include data obtaining module and state determining module, wherein:

Specifically, described data obtaining module receive base station send or ProSe function send in Continue configuration information, or described data obtaining module obtains the pre-configured link deployment letter of described relaying UE Breath；

● application 1

Described state determining module determines the relay state of relaying UE according to link deployment information, including following Several situations:

● application 2:

Described state determining module, according to described link deployment information and/or D2D information, determines relaying UE From relay first state enter relaying the second state:

Situation one, described state determining module receives the D2D information of the discovery relaying that far-end UE sends The described relaying UE of rear determination enters relaying the second state；

Situation two, described state determining module receives the D2D information of the discovery relaying that far-end UE sends After, interact with described far-end UE, after described relaying UE and described far-end UE set up and are connected, Determine that described relaying UE enters relaying the second state.

Specifically, described state determining module receives the D2D information of the discovery relaying that far-end UE sends After, send discovery relaying response D2D information to described far-end UE, send receiving described far-end UE Relay connection set up request after, to described far-end UE send relay connection set up information, determine described in The UE that continues enters relaying the second state.

● application 3:

Described state determining module, according to link deployment information and D2D information, determines relaying UE from relaying Second state entrance relaying the first state:

Situation one, described state determining module starts described when described relaying UE enters relaying the second state Relay activity condition timer, when described relay activity condition timer time-out, determines described relaying UE Enter relaying the first state.

Preferably, described state determining module is additionally operable to after starting described relay activity condition timer, Judge if it occur that following event one of arbitrarily, then restarts described relay activity condition timer: receive Any one far-end UE having accessed is sent to the D2D communication information of described relaying UE；Receive and connect The D2D discovery information that any one far-end UE entering sends；Described relaying UE is any one to accessed Far-end UE sends the D2D communication information.

Situation two, described state determining module, when far-end UE accesses described relaying UE, is described far-end UE arranges and starts corresponding active state timer；When the active state timer of described far-end UE surpasses Constantly, the connection of described relaying UE release and described far-end UE is notified；Relaying UE also can be at far-end During the active state timer expiry of UE, send the D2D information of discovery far-end UE to described far-end UE Or paging information, if not receiving the response message that far-end UE sends in the given time, then described Relaying UE release and the connection of described far-end UE；When described state determining module receives accessed remote The connection release request information that end UE sends, then stop the corresponding active state timer of described far-end UE, Notify the connection of described relaying UE release and described far-end UE；All connect in described relaying UE release After the connection of the far-end UE entering, described state determining module determines that described relaying UE enters relaying the first shape State.

Preferably, described state determining module is additionally operable to arranging for described far-end UE and starting corresponding work After dynamic condition timer, it is judged that if it occur that following event one of arbitrarily, then restarts described far-end UE corresponding Active state timer: receive described far-end UE be sent to relay UE the D2D communication information； Receive the D2D discovery information that described far-end UE sends；Described relaying UE sends out to described far-end UE Send the D2D communication information.

In a preferred embodiment, described state determining module determines that the relay state of described relaying UE is Relaying the first state, described device also includes the first module, for performing the one in following operation:

Specifically, after described first module receives the D2D information of the discovery relaying that far-end UE sends, Send discovery relaying response D2D information to described far-end UE；Described first module receives described far-end After the relay connection that UE sends sets up request, send relay connection to described far-end UE and set up information.

In a preferred embodiment, described state determining module determines that the relay state of described relaying UE is Relaying the second state, described device also includes the second module, for performing the one or several in following operation Kind:

(1) repeat broadcast information is periodically sent；

(4) the D2D communication information that the far-end UE of described relaying UE sends has been accessed；

Preferably, described second module is additionally operable to: receiving the far-end not yet accessing described relaying UE After the relay connection that UE sends sets up request, send relay connection to described far-end UE and set up information.

In a preferred embodiment, described device also includes reporting module, and it is used for true in described state After cover half block determines the relay state of relaying UE, report the relay state of described relaying UE to base station.

Below in conjunction with application example, above-described embodiment method is further described.Hereinafter, in inciting somebody to action First state that continues is referred to as relaying inactive state, is referred to as relay activity state by relaying the second state.

The UE possessing relay capabilities can enter inactive state when not having remote subscriber to access, and works as reception Just enter relay activity state after the D2D information that the discovery that remote subscriber sends relays, periodically Broadcast relay information, thus can realize relaying the purpose of UE economize on electricity.

Relaying UE may be at two states: relay activity state and relaying inactive state.Such as Fig. 4 Shown in, when surrounding does not has far-end UE, relaying UE enters relaying inactive state, inactive at relaying State, relaying UE only periodically wakes up relaying discovery receives to monitor whether there is far-end UE in resource The D2D information (for example finding relay request message) of the discovery relaying sending, if it has, then relay UE sends discovery relaying response D2D information to far-end UE.Relaying UE afterwards waits far-end UE to send Connection establishment request, if receiving this message, then relay UE send connection establishment message to far-end UE, Thus set up with far-end UE and be connected.Meanwhile relay UE and enter relay activity state.In addition, in Also relaying can be immediately entered continue UE after receiving far-end UE and sending the D2D information that discovery relays Active state.

Relaying UE enters after relay activity state, and relaying UE can same at the packet forwarding far-end UE When, periodic broadcast transmission trunk information, wait more far-end UE to access after hearing message.Relaying UE can safeguard a relay activity condition timer, when relaying UE be far-end UE forward packet or It is to receive the access request that far-end UE sends or the far-end UE transmission having accessed relaying UE During D2D discovery information, restart this timer, if this timer expiry, then relay UE and think and connect The far-end UE entering, all in inactive state, therefore relays the connection that UE can initiate release and far-end UE, Enter relaying inactive state.In addition, relay UE and also can arrange one for each far-end UE accessing Individual active state timer, whenever the packet receiving from far-end UE or discovery message, or to far-end UE just restarts the active state timer corresponding to this far-end UE when sending packet.When far-end UE pair The active state timer expiry answered, relaying UE discharges the context of the far-end UE of local preservation.In The UE that continues also can send discovery to described far-end UE remote when the active state timer expiry of far-end UE The D2D information of end UE or paging information, send if not receiving far-end UE in the given time Response message, then described relaying UE release and the connection of described far-end UE.In addition relaying UE also has May receive the Connection Release information that far-end UE sends, after receiving this message, relaying UE resets far-end UE corresponding active state timer, and discharge the context of far-end UE.In addition when there being high priority Far-end UE or higher ARP (Allocation and Retention Priority, distribution and reservation priority) Bearing requirements when setting up, relaying UE actively can send out to the far-end UE of the be preempted resource of low priority Message request release connects.When relaying the PC5 connection that UE discharges all of far-end UE, relaying UE returns to relay inactive state, no longer periodically sends relay message and trunk monitoring data receiver Resource, the D2D information that the discovery that now only whether periodic monitoring has far-end UE to send relays.

Provide specifically possible relaying power-saving method and related signaling process below by way of application example.

Application example 1

Officer A, B use the UE1 possessing D2D function, UE2 respectively.UE1 has been in network and has covered Lid state, and UE2 is in without the network coverage.This example describes base station configuration via node and enables economize on electricity Flow process.The UE1 being in the network coverage is interested in become via node, in providing for uncovered UE Following the service is engaged in, as UE1 is interested in becoming UE-to-network relay.As it is shown in figure 5, include following Step:

Step 1, UE1 can send D2D trunk information to base station, including the interest instruction to relay, And the positional information that UE is current；

Step 2, base station receives the D2D trunk information of UE1 transmission and selects UE1 as via node, Then base station sends link deployment information to UE1, and in this example, for UE-to-network relay, (UE is to network Relaying) configure and set up information；

Concrete, link deployment information can comprise one or more in following information: relaying finds resource Or resource pool information, trunking traffic resource or resource pool information, the activation instruction of relay function, relay work( The deactivation instruction of energy, relaying economize on electricity enables and indicates, instruction is forbidden in relaying economize on electricity, and relay activity state is fixed When device, far-end UE active state timer etc..In this example, link deployment information is including at least relaying work( The activation instruction of energy and relaying economize on electricity enable and indicate.

Trunking traffic resource or resource pool information for relaying the communication of UE and far-end UE, including in The communication that continues sends resource or resource pool information, and trunking traffic receives resource pool information.Relaying discovery money Source or resource pool information are used for relaying UE discovery far-end UE, send resource or money including relaying discovery Pond, source information, and relaying discovery reception resource pool information.Further, relaying discovery send resource or Resource pool information includes covering D2D discovery and sends resource or resource pool information, and/or, without covering D2D Discovery sends resource pool information, and relaying discovery reception resource pool information includes covering D2D discovery and receives money Pond, source information and without cover D2D discovery receive resource pool information.Covering D2D discovery is had to receive resource pool Information include relay UE service or persistent district D2D discovery send resource and relaying UE service or The corresponding D2D in the adjacent area discovery of persistent district sends resource.

Except proprietary RRC (Radio Resource Control, wireless heterogeneous networks) signaling, UE1 is also Relay resource pond configuration information can be received from base station broadcast message.Additionally, UE1 can also be from ProSe (closely service function, for D2D configuration, the network element entity of authorization identifying, is positioned at core to function Net) the link deployment information that receives or UE1 pre-configured link deployment information.

Step 3, UE1 receives the link deployment information activating relay function, then UE1 starts relay function, If configuration information instruction enables relaying economize on electricity, then UE1 enters relaying inactive state.

Application example 2

Mary, John and Peter hold respectively possess D2D communication and relay function UE1, UE2 and UE3.UE1 and UE2 is each other in D2D communication range, UE2 and UE3 is each other at D2D communication model In enclosing, and UE1 and UE3 be not each other in D2D communication range.This example describes base station configuration relaying Node goes to enable the flow process of economize on electricity.Assume that base station configuration UE 2 becomes UE-to-UE relaying, such as Fig. 6 institute Show, comprise the following steps:

Step 1, base station sends link deployment information to UE2, is UE-to-UE relay (UE in this example To UE relaying) configure and set up information；

Concrete, link deployment information can comprise one or more in following information: relaying finds resource Or resource pool information, trunking traffic resource or resource pool information, the activation instruction of relay function, relay work( The deactivation instruction of energy, relaying economize on electricity enables and indicates, instruction is forbidden in relaying economize on electricity, and relay activity state is fixed When device, far-end UE active state timer etc..In this example, link deployment information is including at least relaying work( Instruction is forbidden in the activation instruction of energy and relaying economize on electricity.

Trunking traffic resource or resource pool information for relaying the communication of UE and far-end UE, including in The communication that continues sends resource or resource pool information, and trunking traffic receives resource pool information.Relaying discovery money Source or resource pool information, for relaying the discovery of UE and far-end UE, send resource including relaying discovery Or resource pool, and relaying discovery reception resource pool information.Further, relaying discovery send resource or Resource pool information includes covering D2D discovery and sends resource or resource pool information, and/or, without covering D2D Discovery sends resource pool information, and relaying discovery reception resource pool information includes covering D2D discovery and receives money Pond, source information and without cover D2D discovery receive resource pool information.Covering D2D discovery is had to receive resource pool Information include relaying the D2D discovery of UE Serving cell (or claim persistent district) send resource pool and in Continue UE Serving cell the corresponding D2D in adjacent area discovery send resource pool.

Except proprietary RRC signaling, UE2 also can receive configuration letter in relay resource pond from base station broadcast message Breath.Additionally, UE2 can also be pre-configured from the link deployment information of ProSe function reception or UE2 Link deployment information.

Step 2, after UE2 receives link deployment information, if configuration information instruction activate relay function and Forbid relaying economize on electricity, then UE2 enters relay activity state.

Application example 3

Officer A, B use the UE1 possessing D2D function, UE2 respectively.UE1 has been in network and has covered Lid state, and UE2 is in without the network coverage.This example describes relaying UE and enters from relaying inactive state Enter the flow process of relay activity state.The UE1 being in the network coverage is interested in become via node, is nothing The UE covering provides relay services.Assume base station selected UE1 as via node, as it is shown in fig. 7, Comprise the following steps:

Step 1, base station sends equipment straightforward trunking configuration information to UE1, and UE1 receives link deployment letter After breath, if configuration information instruction activates relay function and enables relaying economize on electricity, then UE1 performs relaying Function simultaneously enters relaying inactive state；

Step 2, relaying UE1 receives monitoring far-end UE on resource pool in relaying discovery and sends discovery relaying D2D information；

The relaying relaying inactive state listening period that comprises according to link deployment information of UE1, monitor frame and/ Or sub-frame offset, monitor the information trunk monitoring discoveries such as duration and receive what far-end UE on resource pool sent D2D finds information.Receiving in the corresponding subframe of resource pool in non-relaying discovery, UE1 is without monitoring correspondence Subframe.

Step 3, far-end UE2 sends the D2D information of discovery relaying；

It is now in wishing to find relaying UE to be connected to network traffic without the far-end UE2 covering state, Then UE2 first listens to relaying discovery and receives resource pool, it is judged that the neighbouring D2D whether having relaying UE to send Repeat broadcast information.If the repeat broadcast information that relaying UE sends, then far-end UE2 choosing can be received Select a relaying UE, and send relay connection foundation request to the relaying UE choosing.Assume UE2 now Do not receive the repeat broadcast information that relaying UE sends, then far-end UE2 sends the D2D letter of discovery relaying Breath.

The D2D information of the discovery relaying that far-end UE2 sends can include the part or all of of herein below: sends out Now relaying instruction, the mark of far-end UE, the type of far-end UE, the trunk type that far-end UE finds, The communication target mark of far-end UE, the communication set mark of far-end UE, the priority etc. of far-end UE.

Step 4, relaying UE1 receives the D2D information that far-end UE2 sends discovery relaying, and according to disappearing Breath content judges that UE2 is look for relaying UE, then UE1 enters relay activity state；

Step 5, it is random that relaying UE1 use relaying discovery transmission resource or therefrom secondary now send resource pool Resource is selected to send relaying response D2D information to far-end UE2；

Relaying response D2D information can include the part or all of of herein below: relaying mark, trunk type, Relay services cell ID, relaying available period, relaying affiliated group mark, relaying mobile status instruction, Relaying PLMN information, relaying illegal state instruction etc..

Step 6, UE2 receives the relaying response D2D information that relaying UE1 sends, and UE2 is to relaying UE1 Sending relay connection and setting up request, the relay connection that relaying UE1 receives far-end UE2 transmission sets up request, Then relaying UE1 and setting up information to far-end UE2 transmission relay connection, UE2 is just integrated into relaying UE1.

If UE2 receives the relaying response D2D information that multiple relaying UE sends, then UE2 choosing simultaneously Select a relaying UE and send relay connection foundation request to the relaying UE choosing.

After UE2 is linked into relaying UE1, relaying UE1 follow-up can reception in trunking traffic receives on resource pool The D2D communication information that UE2 sends, uses trunking traffic send resource or send resource pool from trunking traffic Randomly choose resource and send the D2D communication information to far-end UE2.Relaying UE1 also can receive and to have accessed The D2D discovery information that UE sends, and the connection establishment request that other far-ends UE not yet accessing sends Information and the D2D information of discovery relaying UE.Accessed relaying UE1 far-end UE (i.e. with Relaying UE set up connect D2D UE) send D2D discovery information include following information part or Whole: far-end UE identifies, the type of far-end UE, the communication set mark etc. of far-end UE.Find relaying The content that the D2D information of the far-end UE transmission discovery relaying of UE includes is as described in step 3.

In addition be in the UE1 of relay activity state can use relaying discovery send resource or therefrom secondary now send out Send the transmission repeat broadcast information that resource pool randomly chooses resource period.During repeat broadcast information can include Continue mark, trunk type, relay services cell ID, group mark belonging to relaying available period, relaying, Relaying mobile status instruction, relaying PLMN information, relaying illegal state instruction etc..

Application example 4

Officer A, B use the UE1 possessing D2D function, UE2 respectively.UE1 has been in network and has covered Lid state, and UE2 is in without the network coverage.This example describes relaying UE and enters from relaying inactive state Enter the another kind of flow process of relay activity state.The UE1 being in the network coverage is interested in become via node, There is provided relay services for uncovered UE.As shown in Figure 8, comprise the following steps:

Step 1, base station selected UE1 is as via node, then base station sends equipment straightforward trunking to UE1 Configuration information, after UE1 receives link deployment information, if configuration information instruction enables relaying economize on electricity, then UE1 enters relaying inactive state；

Step 2, relaying UE1 receives reception far-end UE on resource pool in relaying discovery and sends discovery relaying D2D information；

Receiving in the corresponding subframe of resource pool in non-relaying discovery, UE1 is without monitoring corresponding subframe.This The relaying inactive state listening period that outer relaying UE1 also can comprise according to link deployment information, monitoring frame/ Sub-frame offset, monitors the information trunk monitoring discoveries such as duration and receives far-end UE transmission discovery on resource pool The D2D information of relaying.

Step 3, far-end UE2 sends the D2D information of discovery relaying；

It is now in wishing to find relaying UE to be connected to network traffic, then without the UE2 covering state UE2 first listens to relaying discovery and receives resource pool, it is judged that in the neighbouring D2D whether having relaying UE to send Continue broadcast message.If the D2D repeat broadcast information that relaying UE sends, then far-end UE2 can be received Select a relaying UE, and send relay connection foundation request to the relaying UE choosing.Assume UE2 this When do not receive relaying UE send D2D repeat broadcast information, then far-end UE2 send discovery relaying D2D information.

The D2D information of the discovery relaying that far-end UE2 sends includes the part or all of of herein below: find Relaying instruction, the mark of far-end UE, the type of far-end UE, the trunk type that far-end UE finds, far The communication target mark of end UE, the communication set mark of far-end UE, the priority etc. of far-end UE.

Step 4, relaying UE1 receives the D2D information that far-end UE2 sends discovery relaying, and according to disappearing Breath content judge UE2 be look for relay UE, then relay UE1 use relaying discovery transmission resource or from Relaying discovery sends resource pool and randomly chooses resource to far-end UE2 transmission relaying response D2D information；

Step 5, UE2 receives the relaying response D2D information that relaying UE1 sends, sends out to relaying UE1 Relay connection is sent to set up request；

Step 6, relaying UE1 receives the relay connection foundation request that far-end UE2 sends, then relays UE1 Sending relay connection to far-end UE2 and setting up information, so far UE2 is integrated into relaying UE1, and relays UE1 enters relay activity state.

Relaying UE1 follow-up can reception in trunking traffic receives the D2D communication letter that UE2 sends on resource pool Breath, uses trunking traffic send resource or randomly choose resource to far-end from trunking traffic transmission resource pool UE2 sends the D2D communication information.Relaying UE1 also can receive the D2D discovery that the UE having accessed sends Information, and the connection establishment solicited message that sends of other far-ends UE of not yet accessing and discovery relaying D2D information.

In addition be in the UE1 of relay activity state can use relaying discovery send resource or therefrom secondary now send out Send the transmission D2D repeat broadcast information that resource pool randomly chooses resource period.D2D repeat broadcast information The part or all of of herein below can be included: relay mark, trunk type, relay services cell ID, Group mark belonging to relaying available period, relaying, relaying mobile status instruction, relaying PLMN information, in Continue illegal state instruction etc..

Application example 5

Officer A, B use the UE1 possessing D2D function, UE2 respectively.UE1 has been in network and has covered Lid state, and UE2 is in without the network coverage.This example describes far-end UE relay activity state-maintenance stream Journey, it is assumed that base station selected UE1 is as via node, and relays UE1 and have been enter into relay activity state. As it is shown in figure 9, comprise the following steps:

Step 1, is in the UE1 of relay activity state and relaying discovery can be used to send resource or therefrom secondary Now send the transmission D2D repeat broadcast information that resource pool randomly chooses resource period.D2D repeat broadcast Information can include relaying mark, trunk type, relay services cell ID, relaying available period, relaying Affiliated group mark, relaying mobile status indicates, relays PLMN information, relaying illegal state instruction etc.. It is now in wishing to find relaying UE to be connected to network traffic without the UE2 covering state, then UE2 First listen to relaying discovery and receive resource pool, it is judged that the neighbouring D2D relaying whether having relaying UE to send is wide Broadcasting information, now UE2 receives the D2D repeat broadcast information that relaying UE1 sends, then far-end UE2 Send relay connection to relaying UE1 and set up request.Relaying UE1 receives the relaying that far-end UE2 sends Connection establishment is asked, then relay UE1 and set up information and UE2 foundation to far-end UE2 transmission relay connection Connect；

Step 2, UE1, when UE2 accesses, starts the active state timer corresponding to far-end UE2；

Step 3, relaying UE1 determines whether that following event one of arbitrarily occurs, if it has, perform step Rapid 4, otherwise step 7: receive in trunking traffic and receive the D2D that far-end UE2 sends on resource pool The communication information；Use trunking traffic send resource or from trunking traffic send resource pool randomly choose resource to Far-end UE2 sends the D2D communication information；Receive the D2D discovery information that far-end UE2 sends.

Step 4, it is judged that whether the message receiving is the connection release request information that far-end UE2 sends, If it is, step 6, otherwise step 5；

Step 5, relaying UE1 is restarted the active state timer of far-end UE2, is returned step 3；

Relaying UE1 receives the D2D communication information that far-end UE2 sends, or relaying UE1 is to far-end UE2 have sent the D2D communication information, or relaying UE1 receives the D2D discovery that far-end UE2 sends Information, all can trigger relaying UE1 and restart far-end UE2 active state timer.

Step 6, if UE1 receives the connection release request information that UE2 sends, then UE1 is to UE2 Send Connection Release information, step 8；

Step 7, it is judged that whether far-end UE2 active state timer is overtime, if it is, step 8, Otherwise return step 3；

Step 8, the context of the connection of UE1 release and far-end UE2 and the UE2 of preservation.

Additionally, relaying UE1 can be when the active state timer expiry of far-end UE2, to far-end UE2 Send D2D information or the paging information of discovery far-end UE2, if not receiving remote in the given time The response message that end UE2 sends, the then connection of described relaying UE1 release and far-end UE2.

Application example 6

Officer A, B, C use the UE1 possessing D2D function, UE2, UE3 respectively.UE1 is in There is a network coverage status, and UE2, UE3 is in without the network coverage.This example describes relaying UE therefrom The active state that continues is to the flow process of relaying inactive state, and in this example, relaying UE1 is each far-end UE One active state timer is set, as shown in Figure 10, comprises the following steps:

Step 1, base station selected UE1, as via node, enables relaying economize on electricity, and relaying UE1 enters Enter relay activity state；

Step 2, is now in all having accessed relaying UE1, relaying without UE2 and UE3 covering state UE1, when UE2 and UE3 accesses, is respectively started the active state timer corresponding to UE2 and UE3；

Step 3, the method (step 3-7 in example 5) that relaying UE1 may utilize in example 5 judges whether Need the connection of release and UE2, and judge whether to need the connection of release and UE3, if it is, hold Row step 4, otherwise returns this step；

Step 4, relaying UE1 releases the connection with UE2 and UE3 successively, and UE1 enters relaying non-live Dynamic state.

Application example 7

Officer A, B, C use the UE1 possessing D2D function, UE2, UE3 respectively.UE1 is in There is network coverage status, and UE2 and UE3 is in without the network coverage.This example describes relaying UE therefrom The active state that continues is to the flow process of relaying inactive state, in this example, and relaying UE1 maintenance one self Relay activity condition timer, as shown in figure 11, comprise the following steps:

Step 1, base station selected UE1, as via node, is sent to link deployment information, and UE1 receives After link deployment information, if configuration information instruction activates relay function and enables relaying economize on electricity, then UE1 enters relaying inactive state；

Step 2, relaying UE1 receives, in relaying discovery, the D2D that on resource pool, monitoring far-end UE sends and sends out Existing information, relaying UE1 receives the D2D discovery information that far-end UE2 sends, and according to message content Judge that UE2 is look for relaying UE, then UE1 enters relay activity state, starts relay activity simultaneously Condition timer；

Step 3, relaying UE1 sets up with far-end UE2 and UE3 and is connected and forwards data, relaying for it UE1 determines whether that following event one of arbitrarily occurs, if it is, step 4, otherwise step 5: relaying UE1 receives the D2D communication that UE2 or UE3 sends on trunking traffic reception resource pool Information；Relaying UE1 uses trunking traffic send resource or randomly choose money from trunking traffic transmission resource pool Source sends the D2D communication information to far-end UE2 or UE3；Relaying UE1 receives UE2 or UE3 and sends out The D2D discovery information sent；

Step 4, relaying UE1 is restarted relay activity condition timer, is returned step 3；

Step 5, relaying UE1 judges that whether its relay activity condition timer safeguarded is overtime, if it is, Step 6, otherwise returns step 3；

Step 6, relaying UE1 is again introduced into relaying inactive state, only receives resource pool in relaying discovery What upper monitoring far-end UE sent finds the D2D discovery information of relaying UE.

Application example 8

Officer A, B use the UE1 possessing D2D function, UE2 respectively.UE1 has been in network and has covered Lid state, and UE2 is in without the network coverage.The interesting relaying that becomes of UE1 being in the network coverage saves Point, provides relay services for uncovered UE.UE1 is according in pre-configured link deployment information activation Continue function, and enables economize on electricity, and now UE1 enters relaying inactive state, starts to receive in relaying discovery The discovery relaying D2D information that far-end UE sends is received on resource pool.UE1 can be inactive at entrance relaying After state, sending relay state instruction to the serving BS of UE1, wherein relay state instruction can be further Instruction relaying inactive state.Assume that relaying UE1 receives the discovery relaying D2D that far-end UE2 sends Information, and judge that UE2 is look for relaying UE according to message content, then UE1 enters relay activity shape State, similar, UE1 can send relaying shape to the serving BS of UE1 after entering relay activity state State indicates, wherein relay state instruction may further indicate that relay activity state.When relaying UE1 does not remakes During for via node, UE1 also can send relay state instruction to the serving BS of UE1, wherein relays shape State instruction UE1 is not re-used as via node.

Although the embodiment that disclosed herein is as above, but described content only readily appreciates the present invention And the embodiment using, it is not limited to the present invention.Technology people in any art of the present invention Member, on the premise of without departing from the spirit and scope that disclosed herein, can be in the form implemented and thin Carry out any modification and change on joint, but the scope of patent protection of the present invention, still must be with appended right Claim is defined in the range of standard.

Claims

1. an equipment direct communication system relay state determines method, it is characterised in that include:

2. method according to claim 1, it is characterised in that

Described relaying UE obtains link deployment information, comprising:

3. method according to claim 2, it is characterised in that

Described relaying discovery resource or resource pool information include: relaying discovery sends resource or resource pool, in Secondary now receives resource pool；Described trunking traffic resource or resource pool information include: trunking traffic sends money Source or resource pool, trunking traffic receives resource pool.

4. method according to claim 3, it is characterised in that

Described relaying discovery sends resource or resource pool includes at least one herein below: have covering D2D to send out Now send resource or resource pool, send resource pool without covering D2D discovery；Described relaying discovery receives resource Pond includes: has covering D2D discovery to receive resource pool, and receives resource pool without covering D2D discovery；Its In: described have covering D2D discovery to receive the D2D discovery transmission that resource pool includes relaying UE Serving cell The corresponding D2D in the adjacent area discovery of resource pool and relaying UE Serving cell sends resource pool.

5. method according to claim 2, it is characterised in that

Described link deployment information also includes one or more of herein below: relayed for the first status monitoring week Phase, monitoring vertical shift, monitoring sub-frame offset, monitoring duration.

6. method according to claim 1, it is characterised in that

Described relaying UE determines the relay state of relaying UE according to link deployment information, comprising:

7. method according to claim 1, it is characterised in that

Described relaying UE, according to described link deployment information and/or D2D information, determines in relaying UE Continue state, comprising:

8. method according to claim 7, it is characterised in that

Described relaying UE receive far-end UE send discovery relaying D2D information after, with described far End UE interacts, and after being connected with described far-end UE foundation, enters relaying the second state, comprising:

9. method according to claim 1, it is characterised in that

Described relaying UE, according to link deployment information and D2D information, determines the relay state of relaying UE, Including:

10. method according to claim 9, it is characterised in that

After described relaying UE starts described relay activity condition timer, described method also includes:

11. methods according to claim 1, it is characterised in that

12. methods according to claim 11, it is characterised in that

Described relaying UE is after described far-end UE arranges and starts corresponding active state timer, described Method also includes:

13. methods according to claim 1, it is characterised in that

Determine the relay state of described relaying UE for relaying the first state, described method also includes: in being in One in the following operation of relaying UE execution of first state that continues:

Receive the D2D information of the discovery relaying that far-end UE sends；

14. methods according to claim 1, it is characterised in that

Determine the relay state of described relaying UE for relaying the second state, described method also includes: in being in One or more in the following operation of relaying UE execution of second state that continues:

Periodically send repeat broadcast information；

15. methods according to claim 14, it is characterised in that

Described method also includes: not yet accesses the far-end UE of described relaying UE and receives and be in relaying second After the repeat broadcast information that the relaying UE of state sends, select a relaying UE, to the relaying UE choosing Send relay connection and set up request, after described relaying UE receives the foundation request of described relay connection, to institute State far-end UE transmission relay connection and set up information.

16. methods according to claim 1, it is characterised in that

After described relaying UE determines the relay state of relaying UE, described method also includes: described relaying UE reports the relay state of relaying UE to base station.

17. 1 kinds of equipment direct communication system relay states determine device, are positioned at trunk subscriber equipment UE, and it is special Levy and be, including data obtaining module and state determining module, wherein:

18. devices according to claim 17, it is characterised in that

Described data obtaining module obtains link deployment information, comprising:

19. devices according to claim 17, it is characterised in that

Described state determining module determines the relay state of relaying UE according to link deployment information, comprising:

20. devices according to claim 17, it is characterised in that

Described state determining module, according to described link deployment information and/or D2D information, determines relaying UE Relay state, comprising:

21. devices according to claim 20, it is characterised in that

After described state determining module receives the D2D information of the discovery relaying that far-end UE sends, with institute State far-end UE to interact, after described relaying UE and described far-end UE set up and be connected, determine described Relaying UE enters relaying the second state, comprising:

22. devices according to claim 17, it is characterised in that

Described state determining module, according to link deployment information and D2D information, determines the relaying of relaying UE State, comprising:

23. devices according to claim 22, it is characterised in that

Described state determining module is additionally operable to after starting described relay activity condition timer, it is judged that if One of occur following event arbitrarily, then restart described relay activity condition timer:

24. devices according to claim 17, it is characterised in that

25. devices according to claim 24, it is characterised in that

Described state determining module is additionally operable to arranging for described far-end UE and starting corresponding active state After timer, it is judged that if it occur that following event one of arbitrarily, then restarts the corresponding activity of described far-end UE Condition timer:

26. devices according to claim 17, it is characterised in that

Described state determining module determines that the relay state of described relaying UE is relaying the first state, described dress Put and also include the first module, for performing the one in following operation:

Receive the D2D information of the discovery relaying that far-end UE sends；

27. devices according to claim 17, it is characterised in that

Described state determining module determines that the relay state of described relaying UE is relaying the second state, described dress Put and also include the second module, for performing one or more in following operation:

Periodically send repeat broadcast information；

28. devices according to claim 27, it is characterised in that

Described second module is additionally operable to: receiving what the far-end UE not yet accessing described relaying UE sent After relay connection sets up request, send relay connection to described far-end UE and set up information.

29. devices according to claim 17, it is characterised in that

Described device also includes reporting module, and it is for determining in relaying UE at described state determining module After state, report the relay state of described relaying UE to base station.