CN105009610B - The group communication method and device of adjacent service are provided - Google Patents

Abstract

The present invention relates to the method and apparatus for being based on the communication of adjacent service (ProSe) execution group in a wireless communication system.More specifically, the described method comprises the following steps：So that link terminal (trunk subscriber equipment, relaying UE, ProSeUE to network trunk) registration group can communicate within network nodes；And the link terminal is made to be able to carry out the described group of communication with the network node, wherein, if except the quantity by the terminal in addition to link terminal (by trunk subscriber equipment, by relaying UE) in the multiple terminals registered in the network node is not less than a reference value, described group of communication is configured with multimedia broadcasting and multimedia service (MBMS) to send down link signal.

Description

The group communication method and device of adjacent service are provided

Technical field

The present invention relates to wireless communication systems, and more particularly, to the group communication party for providing adjacent service (ProSe) Method and equipment.

Background technology

Adjacent service (ProSe) refers to the scheme for the communication for supporting to be physically close to each other between the device of positioning.Specifically Ground, ProSe are intended to the application for finding to operate neighbouring device, and final, it is intended to support to apply the friendship of related data with this It changes.It may for instance be considered that ProSe is suitable for such as social networking service (SNS), commercial affairs and the application played.

ProSe is also referred to as device and is communicated to device (D2D).That is, ProSe is referred in multiple devices It is straight between the devices without via the network operation in turn that direct link is established between (for example, user equipment (UE)) Connect the communication plan of exchanging user data (for example, audio, multi-medium data etc.).ProSe communications may include UE to UE communication, Peer-to-peer communications etc..In addition, ProSe communications can be adapted for Machine To Machine (M2M) communication, machine-type communication (MTC) etc..Cause This, ProSe is considered the solution born caused by promptly increased data service for reducing base station Scheme.In addition, by using ProSe, can it is expected the reduction of the process of such as base station, the device that participates in ProSe power consumption The effect of reduction, the increase of data transmission bauds, the increase of network capacity, power load distributing, cell coverage area extension etc..

Invention content

Technical problem

Although requiring the use of ProSe as described above, the machine for supporting and controlling ProSe is not prepared specifically System.

It is designed to deal with being executed about the group communication mechanism based on ProSe it is an object of the invention to a kind of for the problem Include the method for UE to the network trunk group communications operated.

It should be appreciated that the above general description of the present invention and it is both described in detail below be exemplary with it is illustrative, And it is intended to provide the further explanation to such as claimed invention.

Technical solution

The purpose of the present invention can be a kind of in a wireless communication system based on adjacent service (ProSe) execution group by providing The method of communication realizes that this approach includes the following steps：By trunk subscriber equipment (UE) (or in ProSe UE to network After) execution group communication registration within network nodes；And executed by the relaying UE and communicated with the group of the network node, In, if the quantity of the UE in the UE registered in the network node in addition to being relayed UE is equal to or more than benchmark Value, then described group of communication are configured with multimedia broadcasting and multimedia service (MBMS) scheme to send downlink letter Number.

The method can also include the following steps：It is received from by relaying UE for the network section by the relaying UE The first message of the group registration of point；And it sends to the network node and disappears for the second of the group registration by relaying UE Breath.

The second message may include the location information of the relaying UE.The location information may include tracing area Identify at least one of (TAI) and E-UTRAN Cell Global Identifiers (ECGI).The second message may include relaying behaviour Make information, and the operation of relays information can indicate at least one of the following terms：Whether the relaying UE is for institute It states and operation of relays is executed by relaying UE；Whether the group registration by relaying UE executes via the relaying UE；It is described by After UE whether via relaying UE participation groups communication；It is described whether to be located in network coverage by relaying UE；It is described by Whether it is located in the E-UTRAN coverage areas of support group communication after UE；And whether the UE that relayed is positioned at group communication service In range.The second message may include the identification information of the relaying UE.

The method can also include receiving MBMS service information from the network node.The MBMS service information can be with It is configured as by least one relaying UE for being only sent in the service range positioned at described group of communication and at least one is relayed UE at least one of works as relaying UE.The MBMS service information may include the service identifier (ID) of media, interim movement Group mark at least one of (TMGI) and multicast address.

The granularity of the service range of described group of communication can be single subdistrict, group communication service region, MBMS service region, Single tracing area, multiple cells, the region multimedia broadcast multicast services single frequency network (MBSFN), is directed to group at multiple tracing areas Communicate one in preassigned region and public land mobile network (PLMN).

In another aspect of the invention, it is provided in this article be one kind in a wireless communication system by network node base In the method for adjacent service (ProSe) support group communication, this approach includes the following steps：At least one use is registered in specific group Family equipment (UE), to receive data from the network node；And determine group for the multiple UE registered in the specific group Communication plan, wherein if except meeting a reference value by the quantity of the UE in addition to relaying UE, described group of communication plan is true It is set to multimedia broadcasting and multimedia service (MBMS) scheme.

The method can also include the following steps：By the network node from broadcast multicast services center (BM-SC) It receives and describes (USD) information for the user service of MBMS deliverings.The network node can be configured as only to positioned at described It at least one relaying UE in the service range of group communication and at least one relaying UE at least one of is worked as by relaying UE send MBMS information.The USD information can be configured as the relaying UE being used by the service range of described group of communication To receive DownLink Media/business.

In another aspect of the invention, provided in this article is that one kind being based on adjacent service in a wireless communication system (ProSe) the trunk subscriber equipment (UE) (or ProSe UE to network trunk) of execution group communication, the relaying UE includes radio frequency (RF) unit and processor, wherein the processor be configured as within network nodes execution group communication registration, and execute with The group of the network node communicates, and wherein, if removing in the UE registered in the network node is relayed The quantity of UE other than UE is equal to or more than a reference value, then described group of communication is configured with multimedia broadcasting and multimedia clothes Business (MBMS) scheme sends down link signal.

In another aspect of the invention, provided in this article is that one kind being based on adjacent service in a wireless communication system (ProSe) network node of support group communication, the network node includes radio frequency (RF) unit and processor, wherein described group Communication is configured as registering at least one user equipment (UE) in specific group, to receive data from the network node, and And at least one UE determinations group communication plan to be registered in the specific group, and wherein, if in the network The quantity of the UE in addition to being relayed UE in the multiple UE registered in node is equal to or more than a reference value, then described group of communication Scheme is confirmed as multimedia broadcasting and multimedia service (MBMS) scheme.

Advantageous effect

It can be efficiently performed including UE to network trunk according to the present invention when performing the group communication based on ProSe The group of operation communicates.

It will be understood by those skilled in the art that the effect that can be realized through the invention is not limited to be particularly described above Effect, and will according in conjunction with attached drawing carry out it is described in detail below be more clearly understood that the present invention further advantage.

Description of the drawings

Attached drawing is included to provide a further understanding of the present invention, and attached drawing instantiates embodiments of the present invention, and With together with this specification be used for illustrate the principle of the present invention.In attached drawing：

Fig. 1 is the framework for schematically illustrating the Evolved Packet System (EPS) including Evolved Packet Core (EPC) View；

Fig. 2 is the view in the default data path for instantiating the communication in EPS between two UE；

Fig. 3 is the view for instantiating the Direct Model data path between two UE based on ProSe；

Fig. 4 is the view for instantiating the data path in local routing between two UE based on ProSe；

Fig. 5 is the view for instantiating the group communication operated including UE to network trunk based on ProSe；

Fig. 6 is the view for describing group communication service；

Fig. 7 is the view for describing group communication according to the embodiment of the present invention；

Fig. 8 is the view of the group communication for describing another embodiment according to the present invention；And

Fig. 9 is the view for the configuration for instantiating UE and network node according to the embodiment of the present invention.

Specific implementation mode

The embodiments of the present invention being described below are the combinations of the element and feature of the present invention.Unless otherwise mentioned, Otherwise elements or features are considered selective.Each element or feature can not combined with other elements or features In the case of put into practice.Furthermore, it is possible to construct embodiments of the present invention by the part of composition element and/or feature.It can To rearrange the operation order described in embodiments of the present invention.Some constructions or feature of any one embodiment It can be included in another embodiment, and can be replaced with the corresponding construction or feature of another embodiment.

The specific term used in the following description is provided to help to understand the present invention.In scope and spirit of the present invention These interior specific terms can be replaced with other terms.

In some cases, the design of the present invention is fuzzy in order to prevent, and the structure and equipment of known technology will be omitted, or Person is shown the major function based on each structure and equipment in block diagram form.In addition, identical reference numeral is at this Indicate identical element in specification in the accompanying drawings from beginning to end.

Embodiments of the present invention can be by being directed to such as 802 system of institute of Electrical and Electronic Engineers (IEEE), third For partner program (3GPP) system, 3GPP long term evolutions (3GPP LTE) system, LTE-Advanced (LTE-A) systems and Technical standard disclosed at least one of radio access system of 3GPP2 systems is supported.For being saved described in it Slightly with the step of the technical characteristic of the clarification present invention or part, it is referred to these documents.In addition, as set forth herein all Term can be illustrated by technical standard.

Following term can be used in various radio access systems.For clarity, the disclosure concentrates on 3GPP LTE System and lte-a system.However, the technical characteristic of the present invention is without being limited thereto.

The term used in the present specification is defined as foloows.

- UMTS (Universal Mobile Telecommunications System)：The third generation based on the global system for mobile communications (GSM) developed by 3GPP Mobile communication technology.

- EPS (Evolved Packet System)：Utilize the network system for connecing network connection configuration of such as Evolved Packet Core (EPC) System, the EPC are packet switched core network, LTE or UMTS Terrestrial Radio Access Networks based on Internet protocol (IP) (UTRAN).EPS is the network from UMTS evolution.

-NodeB：The base of GSM/EDGE (enhanced data rates for gsm evolution) radio access network (GERAN)/UTRAN It stands, be installed in outdoor and there is coverage area corresponding with macrocell.

- eNodeB (evolved node B)：The base station of LTE network is installed in outdoor and has corresponding with macrocell Coverage area.

- UE (user equipment)：User apparatus.UE can be referred to as terminal, mobile device (ME) or movement station (MS).Separately Outside, UE can be such as laptop computer, mobile phone, personal digital assistant (PDA), smart phone or multimedia device Mancarried device, or such as personal computer (PC) or car-mounted device non-portable device.UE can use such as LTE's The non-3 gpp frequency spectrum of 3GPP frequency spectrums and/or such as Wi-Fi or public safety executes communication.

- ProSe (adjacent service or based on neighbouring service)：It makes it possible to realize and find and direct communication/via base station Communication/via the 3rd device between physically adjacent device communication service.In this case, user plane data Do not have to run to exchange via 3GPP core nets (for example, EPC) by immediate data path.

It is neighbouring：It is to be predetermined proximity to condition based on whether meeting to determine that UE, which is adjacent to another UE,.ProSe can be directed to It was found that communicating with ProSe and providing different condition of proximity.Condition of proximity can be configured as to be controlled by operator.

- ProSe has found：Processes of the UE adjacent to another UE is identified using evolved terrestrial radio access (E-UTRA).

- ProSe is communicated：By means of the communication between the neighbouring UE for the data path established between UE.It can be in UE Between directly establish or via home base stations (for example, eNodeB) route data path.

Enable the UE of ProSe：Support the UE that ProSe has found and/or ProSe is communicated.The UE for enabling ProSe is retouched following It is called UE in stating for short.

Enable the network of ProSe：Support the network that ProSe has found and/or ProSe is communicated.The network for enabling ProSe exists It is called network in being described below for short.

- ProSe group communications：It is more than by means of the neighbouring of common communication path established between the UE for enabling ProSe One-to-many ProSe communications between the UE of two enabling ProSe.

- ProSe UE are to network trunk：The UE that public safety enables ProSe uses E-UTRA to be enabled as public safety A kind of form of relaying of communication relay between the UE of ProSe and the network for enabling ProSe.

- ProSe UE to UE relayings：The UE that public safety enables ProSe enables ProSe as two other public safeties UE between ProSe communication relays a kind of relaying form.

- RAN (radio access network)：Including NodeB, eNodeB and in 3GPP network central controls NodeB and The unit of the radio network controller (RNC) of eNodeB.RAN, which is present between UE and core net and provides, arrives core net Connection.

- HLR (home location register)/HSS (home subscriber servers)：The number with subscriber information in 3GPP networks According to library.HSS can execute the function of such as configuration storage, Identity Management and User Status storage.

- RANAP (RAN Application Part)：RAN for control core net is with node (for example, mobility management entity (MME)/service GPRS (general packet radio service) supporting node (SGSN)/mobile switching centre (MSC)) between interface.

- PLMN (public land mobile network)：It is configured as providing the network of mobile communication service to individual.It can run PLMN is configured on the basis of quotient.

- NAS (Non-Access Stratum)：For business to be signaled and exchanged between UE and core net in UMTS protocol stacks The functional layer of message.NAS supports the mobility of UE and supports for being built between UE and packet data network gateway (PDN GW) Session management procedure that is vertical and maintaining IP connections.

- HNB (family NodeB)：Customer premises equipment (CPE) for providing UTRAN coverage areas.It is thin to obtain it Section, can be with reference to 3GPP TS 25.467.

- HeNodeB (family eNodeB)：For providing evolved UETRAN (E-UTRAN) CPE of coverage area.For It, can be with reference to 3GPP TS 36.300 to its details.

- CSG (closed subscriber group)：It is licensed as one of member's access PLMN (PLMN) of H (e) NB Or more the subscriber of CSG cell group.

- LIPA (local IP accesses)：There is the UE of IP abilities to be connected in same house/enterprise IP network via H (e) NB The access of another entity for having an IP abilities.LIPA business is expected the network for not traversing mobile operator.10 system of 3GPP versions The access to the resource of local network (being located at the network at the family or enterprise of client) via H (e) NB is provided.

- SIPTO (unloading of selection IP operation)：In 10 system of 3GPP versions, operator selects in EPC networks physically Close to UE and support UE business switching packet data network gateway (PGW).

- PDN (Packet Data Network) connections：By single ip address (for example, the single addresses IPv4 and/or single IPv6 prefixes) The UE of instruction and by access point name (APN) instruction PDN between logical connection.

EPC (Evolved Packet Core)

Fig. 1 is the framework for schematically illustrating the Evolved Packet System (EPS) including Evolved Packet Core (EPC) View.

EPC is the core element of the System Architecture Evolution (SAE) of the performance for improving 3GPP technologies.SAE, which corresponds to, to be used The research item of ambulant network structure is supported in various types of networks in decision.For example, SAE is intended to provide support base In IP various radio access technologies and provide improved data movement capacity optimization packet-based system.

Specifically, EPC is the core net of the IP mobile communication system for 3GPP LTE systems and can support to be based on The real-time and Non-real-time services of grouping.In traditional mobile communication system (for example, second or 3-G (Generation Three mobile communication system)), Core net function is by two sseparated subdomains (for example, circuit switching (CS) subdomain for sound and for data point Group exchanges (PS) subdomain) come what is realized.However, in the 3GPP LTE systems from third generation communication system evolution, CS subdomains and PS subdomains are unified into the single domains IP.For example, in 3GPP LTE systems, there is the UE of IP abilities can be via IP-based base station (for example, eNodeB (evolved node B)), EPC, application domain (for example, IMS (IP multimedia subsystem)) connection.That is, EPC is to realize that end-to-end IP services be necessarily required to structure.

EPC may include various assemblies and Fig. 1 instantiates several components, for example, gateway (SGW), grouped data Net gateway (PDN GW), mobility management entity (MME), service GPRS (general packet radio service), supporting node (SGSN) With enhanced packet data gateway (ePDG).

SGW is as boundary point of the radio access network (RAN) between core net and is executed for maintaining eNodeB The element of the function of data path between PDG SW.In addition, moved by the region that eNodeB is serviced if UE is crossed over, SGW is used as local mobility anchor.That is, evolved UMTS (the General Mobile electricity that can be defined after 3GPP versions 8 Letter system) in Terrestrial Radio Access Network (E-UTRAN) for mobility via SGW routing packets.In addition, SGW may be used as Using the RAN such as defined before 3GPP versions 8 (for example, UTRAN or GSM (global system for mobile communications)/EDGE (enhancings The evolution of type data rate GSM) radio access network (GERAN)) another 3GPP networks mobile management anchor point.

PDN GW (or P-GW) correspond to the endpoint of the data-interface for Packet Data Network.PDN GW can be with support policy Implement feature, packet filtering and charging support.In addition, PDN GW may be used as using 3GPP networks and non-3 GPP network (for example, Such as unreliable network and such as trustable network of CDMA (CDMA) or WiMax of networking WLAN (I-WLAN)) Mobile management anchor point.

It, can be according to single net although SGW and PDN GW are configured as individual gateway in the network architecture of Fig. 1 It closes config option and realizes two gateways.

MME execute signaling and control function with support the access of UE with obtain network connection, Internet resources distribution, tracking, Paging, roaming and switching.MME controls control plane function related with subscriber and session management.MME manages a large amount of eNodeB And execution is switched to the signaling of another 2G/3G gateways for selecting typical gateway.In addition, MME execution security process, Terminal to network Dialog processing, non-occupied terminal location management etc..

Institute of the SGSN processing such as user for the mobile management and certification of another 3GPP networks (for example, GPRS network) There is grouped data.

EPDG is used as the security node of insincere non-3 GPP network (for example, I-WLAN, Wi-Fi Hotspot etc.).

As can be accessed via based on non-3 GPP access and 3GPP above with respect to the UE for described in Fig. 1, having IP abilities EPC in various elements and the IP service networks (for example, IMS) provided by operator are provided.

Fig. 1 also illustrates various datum marks (for example, S1-U, S1-MME etc.).In a 3 gpp system, connection E-UTRAN and The concept link of two functions of the different function entity of EPC is defined as datum mark.Table 1 lists benchmark illustrated by Fig. 1 Point.It, can there are various datum marks according to the network architecture in addition to the example of table 1.

[table 1]

In the datum mark illustrated by Fig. 1, S2a and S2b correspond to non-3 gpp interface.S2a is for credible non- 3GPP accesses the datum mark for providing relevant control and mobility support to user plane between PDNGW.S2b is in ePDG The datum mark of relevant control and mobility support is provided between PDNGW to user plane.

Controlling mechanism for providing adjacent service (ProSe)

The present invention is proposed supports adjacent service in such as mobile communication system of 3GPP Evolved Packet System (EPS) (ProSe) or D2D service controlling mechanism.

Due to the increase with the related user demand such as social networking service (SNS), for physically adjacent user/dress The demand for setting detection/discovery between special applications/service (for example, being based on neighbouring application/service) has occurred.Even if In 3GPP mobile communication system, the potential use-case and scene of ProSe and the potential service request for providing such service Under discussion.

The potential use-case of ProSe may include business/social interaction server, network unloading, public safety, current infrastructure clothes Business it is integrated (with ensure include accessibility and ambulant user experience consistency).In addition, covering model lacking EUTRAN The use-case of public safety and latent demand (are subjected to by regional rule and carrier policy, and is limited to specific in the case of enclosing The specified frequency band of public safety and terminal) under discussion.

Specifically, by 3GPP the range of the discussion of ProSe is assumed based on neighbouring application/service via LTE or WLAN is provided, and is executed under operator/network-based control and to be found and communication between the devices.

Fig. 2 is the view for instantiating the default data path communicated between two UE in EPS.That is, Fig. 2 examples The example data path between UE-1 and UE-2 under normal circumstances without ProSe between UE-1 and UE-2 is shown.This Default path is transported via base station (for example, eNodeB or family eNodeB) and gateway node (for example, EPC or carrier network) Row.For example, as illustrated in Figure 2, when UE-1 and UE-2 exchange data, can via eNodeB-1, S-GW/P-GW and ENodeB-2 sends the data from UE-1 to UE-2, and likewise it is possible to via eNodeB-2, S-GW/P-GW and ENodeB-1 sends the data from UE-2 to UE-1.Although UE-1 and UE-2 is resided on different eNodeB in fig. 2, It is that UE-1 and UE-2 may reside on identical eNodeB.In addition, although two UE are by identical S-GW and P-GW in fig. 2 Service, but allow the various combinations of service here.For example, UE can by identical S-GW and different P-GW, by different S-GW and identical P-GW is serviced by different S-GW and different P-GW.

In the present invention, this default data path can be referred to as infrastructure path, infrastructure data path or Infrastructure-based communication path.In addition, the communication by infrastructure data path can be referred to as infrastructure-based communication.

Fig. 3 is the view for instantiating the Direct Model data path between two UE based on ProSe.This Direct Model Data path is run not via base station (for example, eNodeB or family eNodeB) and gateway node (for example, EPC).

Fig. 3 (a) instantiates UE-1 and UE-2 and resides on different eNodeB (for example, eNodeB-1 and eNodeB-2) simultaneously And the exemplary cases of data are exchanged by Direct Model data path.Fig. 3 (b) instantiate UE-1 and UE-2 reside in it is identical The exemplary cases of data are exchanged on eNodeB (for example, eNodeB-1) and by Direct Model data path.

It should be noted that the data path of user plane is directly established between UE, and without via as illustrated in Figure 3 Base station or gateway node operation, but control plane path can be established via base station and core net.Pass through control plane path The control information of exchange can be the information about session management, certification, mandate, safety, charging etc..As illustrated in Fig. 3 (a) The UE serviced by different eNodeB between ProSe communication in the case of, can be via the control of eNodeB-1 and core net Node (for example, MME) exchanges the control information for UE-1, and can be via the control node of eNodeB-2 and core net (for example, MME) exchanges the control information for UE-2.Between the UE serviced by identical eNodeB as illustrated by Fig. 3 (b) ProSe communications in the case of, can be exchanged with the control node (for example, MME) of core net via eNodeB-1 for UE-1 With the control information of UE-2.

Fig. 4 is the view for instantiating the data path in local routing between two UE based on ProSe.Such as Fig. 4 institutes It illustrates, the ProSe communication data paths between UE-1 and UE-2 are established via eNodeB-1, but not via by runing Gateway node (for example, EPC) operation of quotient's operation.For control plane path, if as illustrated in Figure 4 by identical ENodeB services UE between establish data path in local routing, then can be via the control of eNodeB-1 and core net Node (for example, MME) processed exchanges the control information for UE-1 and UE-2.

In the present invention, immediate data path can be referred to as above with respect to data path described in Fig. 3 and Fig. 4, used Data path in ProSe, the data path based on ProSe or ProSe communication paths.In addition, passing through this immediate data road The communication of diameter can be referred to as direct communication, ProSe communications or the communication based on ProSe.

Fig. 5 instantiates the exemplary group communication scenes operated including UE to network trunk.As illustrated in Figure 5, UE-1, UE-2, UE-3, UE-4 and UE-5 are the member's UE/ user/subscribers for belonging to same group.Application server (AS) management group and group are logical Letter, and distributor management group.Group communication (or group calling) is similarly carried out with push to talk (PTT), and should be executed and be used for Add and enrolled is operable for participating in group communication.

In the group communication of Fig. 5, a UE can be speaker in given point in time, i.e., media (for example, voice) are sent Device.Therefore, media are sent when multiple UE may be different.Have been added to group for group communication in addition to the UE as speaker UE receive the media sent from speaker UE.Here, UE is permitted explicitly or implicitly receiving transmission from AS or distributor Can speaker be may be used as later.

Specifically, Fig. 5 instantiates UE-5 not via network but receives group communication service via UE-4.This illustrates UE In 3GPP network coverages (for example, E-UTRAN coverage areas in being described below) outside or positioned at the E- for not supporting group communication Situation in UTRAN coverage areas.In this case, UE can by belong to same group member UE operation of relays come Group communication service is received for receiving group communication service via network.Therefore, in the present invention, the E- of support group communication UTRAN coverage areas are referred to as group communication service range.Furthermore it is possible to reference to 3GPP TS 22.468 and 3GPP TR 22.803 To obtain and organize to communicate the details of related service request.

Fig. 6 is the view for describing the framework for group communication service.Provide retouching for datum mark illustrated by Fig. 6 now It states.Broadcast multicast services center (BM-SC) and MBMS GW in core net are used for multipoint service, and GC2 be used to ask The foundation of multipoint service.Here, GC2 is made of the component of user plane and control plane.GC1 is used for and is used in GCSE groups The signaling of group communication service enabler (GCSE) AS of middle registration UE, the relaying and service continuity of eMBMS information.

In addition, in figure 6, the major function of GCSE AS is to determine whether for the communication of i) specific group or ii) participation group The particular UE of communication/reception group membership delivers DownLink Media using unicast scheme or multicast (that is, MBMS) scheme.

Additionally, uplink service is always delivered using unicast scheme, and multipoint service is come in fact using eMBMS It is existing.(to obtain its details, it can be with reference to 3GPP TS 23.246.)

The potential use-case of only ProSe and requirement and master data path and control path exist as described above In discussion, but it is not yet ready for the details of the framework and operation of 3GPP networks for supporting ProSe.The present invention, which proposes, to be used for Allow to the particular example of the control plane signaling by operator/network-control ProSe.

Group communication based on adjacent service (ProSe)

The present invention is proposed for efficiently being controlled in such as mobile communication system of 3GPP Evolved Packet System (EPS) Make the mechanism based on neighbouring group communication.By it is proposed by the present invention based on neighbouring group communication control mechanism may include following One or more combinations in：1) UE (for example, by the relaying UE) energy for being used to allow to be located at outside group communication service range Enough pass through relays UE additions group to obtain the operation of group communication service；2) it is used for by relaying UE following the services in being provided by relaying UE The operation of business；3) it is used to reselect the operation of relaying UE；4) it is used for by utilizing main relaying UE and auxiliary relaying UE by relaying UE Operation；And 5) the operation of group communication AS.It is provided now by operation proposed by the present invention 1) to the detailed description operated 5).

Enrolled operation is added by relaying UE by relaying UE 1. enabling

According to the present invention, UE for allowing to be located at outside group communication service range (hereinafter referred to as by relaying UE or UE-1 it group) can be added with the operation for obtaining group communication service may include and is in operation disclosed below one or more Combination.

1) group UE of communication can be relayed (that is, can be used as UE (hereinafter referred to as relays UE to the UE of network trunk Or UE-2)) can notice one or more marks that the group of relay services includes can be provided for it in UE (that is, relaying UE) Know symbol.The identifier sent from relaying UE as described above can directly be received by other UE or be received via eNodeB.

In addition, above-mentioned notice can be performed simultaneously about adjacent service by the existing notice with relaying UE (that is, UE-2), Or it is respectively executed with it in some cases.In addition, when the identifier for the group that can provide relay services for it is advertised When, relaying UE (that is, UE-2) may have been added to group.However, relaying UE can also even be added can be provided for it in following the service Identifier is noticed before the group of business.

2) it is detected or finds (directly or via network) relay belonging to relaying UE by relaying UE (that is, UE-1) The UE of the group communication of group (hereinafter referred to as organizing #1), and the UE (that is, UE-2) that can be used as relaying is then added.This It outside, for convenience of explanation, can in the present invention from beginning to end for the operation for the UE (that is, UE-2) that can be used as relaying to be added It is construed as being added the operation for it is expected to receive the group (that is, group #1) of relay services by relaying UE.

Therefore, it is sent to the UE (that is, UE-2) that can be used as relaying by relaying UE (that is, UE-1) and request message is added.Such as Fruit is had been detected by/is found the multiple UE that can be used as relaying by relaying UE (that is, UE-1), then can be based on various criterion and select Relay UE.For example, information that can be based on the group that can i) provide relay services for it about relaying UE, ii) signal strength, Iii) preference and iv) configuration/strategy come select relaying UE (that is, UE-2).

Specifically, for example it is assumed that UE-A can relay group #1 and organize the group communication of #2, and UE-B can relay a group #1 Group communication.According to this it is assumed that when both UE-A and UE-B meet other conditions for selecting relaying, if by It is desire to participate in group #1 after UE and organizes the group communication of #2, then UE-A can be selected as to relaying UE.

In addition, the addition request message sent from UE-1 to UE-2 may include group required various items of information of communication. For example, it may include the identification information for being relayed UE (that is, UE-1), the identification information and peace of the group to be added that request message, which is added, Full information.

Can being based on relaying UE (that is, UE-2), whether addition group communication (that is, group #1) executes as described below Subsequent operation.

3-a) add from the relaying UE (that is, UE-2) for being received addition request message by relaying UE (that is, UE-1) The case where entering group #1：

3-a-1) can be assumed by relaying UE (that is, UE-1) need not explicitly be allowed addition group (for example, network/it is group logical Letter system/AS/ distributors).If necessary to signal instruction to group (for example, network/group communication system/AS/ distributors) The information of operation of relays should be executed or need from a group reception license, then to relay UE (that is, UE-2) execution about operation of relays Operation for sending from the message for including operation of relays information to group (that is, group #1).After that, relaying UE is to by relaying UE hairs Send the response message to request message is added.

Otherwise, if need not be signaled to group (that is, group #1) (for example, network/group communication system/AS/ distributors) It indicates execute the information of operation of relays or need not permit from a group reception about operation of relays, then addition will be asked by relaying UE The response message of message is asked to be sent to by relaying UE (and without the message including operation of relays information is sent to group).

3-a-2) alternatively, if should explicitly be allowed to be added or should explicitly be added by relaying UE (that is, UE-1) Enter group, and if necessary to be signaled during instruction should execute to group (for example, network/group communication system/AS/ distributors) After operation information or about operation of relays need from group receive license, then relay UE execute for allow by relaying UE (that is, UE-1 enrolled operation/for sending the operation of the message for including operation of relays information) can be added.It can simultaneously, in combination Or above-mentioned 2 operations are executed separately.After that, relaying UE will be sent to the response message that request message is added and be relayed UE。

Otherwise, if need not signal instruction to group (for example, network/group communication system/AS/ distributors) should hold The information of row operation of relays need not then relay UE and execute for allowing to be relayed UE about operation of relays from a group reception license (that is, UE-1) can add enrolled operation.After that, relaying UE will be sent to by the response message that request message is added After UE.

As described above, when the UE (that is, UE-2) for being used to provide relay services is sent for allowing by relaying UE (that is, UE-1) When can add enrolled message, the UE (i.e. UE-2) for providing relay services can be additionally or alternatively by its location information (for example, tracing area mark (TAI) and/or E-UTRAN Cell Global Identifiers (ECGI)) is included in for allowing to be relayed UE (that is, UE-1) can add in enrolled message.Furthermore, it is possible to apply foregoing description from beginning to end in the present invention.

In addition, in 3-a-1) and 3-a-2) in, operation of relays information may include disclosed below one or more Item of information, and can be explicit information or implicit information.Furthermore, it is possible to always in 3-a-2) in operation of relays information is sent To network (or group communication system/group communication AS/ distributors).In other words, for allowing that by relaying UE enrolled disappear can be added Breath may include operation of relays information.Foregoing description can be applied from beginning to end in the present invention.

Indicate the UE (that is, UE-2) for providing relay services for executing operation of relays by relaying UE (that is, UE-1) Information

Instruction is for adding enrolled UE (that is, UE-1) via relaying UE (that is, UE-2) plus enrolled information

It indicates for adding enrolled UE (that is, UE-1) via the information of relaying UE (that is, UE-2) addition/participation group communication

Instruction for plus enrolled UE (that is, UE-1) i) be located at network coverage is outer, ii) not by eNodeB services or Iii the information) serviced by relaying UE

Instruction is for adding enrolled UE (that is, UE-1) to be located at the information in E-UTRAN coverage areas

Instruction is for adding enrolled UE (that is, UE-1) to be located at the information outside group communication service range

It is used as the identification information (for example, id information, IP address information) of the UE of relaying UE

Alternatively, different from foregoing description, the UE (that is, UE-2) for providing relay services may include it to network Send for plus location information (for example, TAI and/or ECGI) when enrolled message, but may not include it to network It sends for allowing location information when can be added enrolled message by relaying UE (that is, UE-1), to implicitly notice by After UE via relaying UE participation groups communication.

3-b) the relaying UE (that is, UE-2) of addition request message is received from by relaying UE (that is, UE-1) still still Not the case where group (for example, group #1) is not added：

If 3-b-1) need not explicitly be allowed addition group by relaying UE (that is, UE-1), and if necessary to group (example Such as, network/group communication system/AS/ distributors) signal instruction should execute the information of operation of relays or about relaying Operation need from group receive license, then relay UE execute i) be used for plus enrolled operation/ii) for send include operation of relays believe The operation of the message of breath.Above-mentioned 2 operations (that is, i and ii) can simultaneously, in combination or be individually executed (that is, independently). After that, UE is relayed to the response message sent by relaying UE to request message is added.Unlike this, it can have sent pair Be added request message response message after execute for plus it is enrolled operation/for send include operation of relays information message Operation.

In if instruction need not be signaled to group (for example, network/group communication system/AS/ distributors) should executing It need not then be relayed UE from a group reception license and execute for adding enrolled operation after the information of operation or about operation of relays. After that, relaying UE will be sent to by relaying UE the response message that request message is added.

If 3-b-2) by relaying UE (that is, UE-1) should explicitly be allowed to be added or should explicitly addition group, and And operation of relays should be executed if necessary to signal instruction to group (for example, network/group communication system/AS/ distributors) Information or about operation of relays need from group receive license, then relay UE execute i) be used for plus enrolled operation/ii) be used for Allow that by relaying UE enrolled operation/iii can be added) it is used to send the operation for the message for including operation of relays information.It can be same When, above-mentioned 3 operations (that is, i, ii and iii) in combination or are individually executed (that is, independently).After that, relaying UE will Response message to request message is added is sent to by relaying UE.Unlike this, it can have sent to request message is added It is executed after response message for adding enrolled operation/can add enrolled operate by relaying UE for allowing/for sending packet Include the operation of the message of operation of relays information.

However, if by relaying UE (that is, UE-1) should explicitly be allowed to be added or should explicitly addition group, still If need not signal instruction to group (for example, network/group communication system/AS/ distributors) should execute operation of relays Information need not then relay UE and execute i) for adding enrolled operation/ii about operation of relays from a group reception license) it is used to permit Perhaps enrolled operation can be added by relaying UE.Can simultaneously, in combination or be executed separately it is above-mentioned 2 operation (that is, i and ii).After that, relaying UE will be sent to by relaying UE the response message that request message is added.Unlike this, it can send out Sent to be added request message response message after execute for plus it is enrolled operation/for allow by relaying UE can be added The operation of group.

When relaying UE (that is, UE-2) is added as described above by relaying UE (that is, UE-1), can complete/ Execute i) be mutually authenticated, ii) group communicates the exchange of required information, iii) for group communication security relationship a formation (example Such as, security key exchange) and iv) at least one of the storage of information/content about opposite UE.

In addition, the message (for example, i) exchanged between relaying UE and network sends and receives when relaying UE addition groups Message, ii) for allows by relaying UE the message and iii that group sends and receives can be added) include operation of relays believe The message of breath) it can be via RAN node (for example, eNodeB), core net node (for example, MME, S-GW, P-GW, ProSe are associated with Node/server, group communication system and/or for a group application server for communication) and at least one of distributor run. In addition, the message exchanged between relaying UE and network can use traditional message or newly defined message.For example, can be with Using traditional AS/RRC and NAS message, newly defined AS/RRC and NAS message can be used, or can define and Use new protocol message.

2. by relaying UE to the operation for being provided relay services by relaying UE

If relaying UE and being not speaker by relaying UE, relay media that UE will receive from network (or group)/ Group calling/group communication is delivered to by relaying UE.In this case, relaying UE can also deliver the identifier information of speaker.

If it is speaker to relay UE, relays UE and the media thus generated/group calling/group communication is delivered to and is relayed UE.In this case, relaying UE can also deliver identifier information of its identifier information as speaker.In addition, relaying The media thus generated/group calling/group communication can be sent to network (or group) by UE.

Otherwise, if by relaying UE be speaker, relay UE can by from by relaying UE send media/group calling/ Group communication is delivered to network (or group).In this case, relaying UE can also be delivered by the identifier information conduct of relaying UE The identifier information of speaker, and the identifier information of relaying UE can be additionally provided.

In addition, in order to enable can be speaker by relaying UE, it may be necessary to from network explicit or implicitly receive hair Send license.In this case, relaying UE, which can be executed, is directed to for receiving by the operation of the transmission license of relaying UE, and can With with for allow by relaying UE can by relay UE add enrolled operations described above similarly execute this operation.

3. the operation for reselecting relaying UE

If relaying UE be no longer able to by relaying UE provide relay services or be no longer able to by relaying UE provide in After service chance (for example, if relaying UE and by relaying UE be moved away from each other or if relaying UE also out of group it is logical Telecommunications services range), then it needs to reselect relaying UE.This operation includes one or more in operation disclosed below Combination.

1) it should be reselected by relaying UE detections/determinations relaying UE, and it was found that/addition i) belongs to same group another One UE or ii) UE that the group for the group for it is expected to receive relay services by relaying UE communicates can be relayed.

It after that, can be to old relaying UE (that is, relay services previously have been provided but are no longer able to provide by relaying UE The relaying UE of relay services) it additionally executes and leaves request operation.However, request operation is left although not executing explicitly, It is that can implicitly execute to leave operation.Here, it leaves operation and means that being relayed UE leaves old relaying UE and be not intended to be relayed UE leaves group.

2) relaying UE detections/determination relaying UE is no longer able to for executing operation of relays by relaying UE.Therefore, relaying UE is held At least one of row the following terms：I) it is used to select the role of relaying UE and the role assigment of UE will be relayed to another relaying The operation of UE and ii) for by the operation of relaying UE notice relevant informations.Here, if role is delegated in another Then notify that or if role is not delegated in another to including about the information appointed by the relevant information of relaying UE after UE Only include then that instruction relaying UE (that is, old relaying UE) is no longer able to execute the information of operation of relays after UE.

3) network detection/it is determined that for by relaying UE reselect relaying UE.Network executes in the following terms at least One：I) it is used to select the role of relaying UE and the operation to another relaying UE and ii by the role assigment for relaying UE) it uses In to by the operation of relaying UE notice relevant informations.Here, notice is relayed if role is delegated another relaying UE The relevant information of UE includes old including only indicating about the information appointed, or if role is not delegated to another relaying UE Relaying UE is no longer able to execute the information of operation of relays.

In aforesaid operations 2) and 3) in, can additionally execute for will be stored in old relaying UE about being relayed Operation of the information/delivery of context of UE to new relaying UE.In addition, for operating 3), network can have about by relaying UE With the information of relaying UE.

4-1. passes through the operation by relaying UE using main relaying UE and auxiliary relaying UE

When the UE (hereinafter referred to as UE-1) outside group communication service range initially selects or reselect relaying When UE, if detecting two or more relaying UE candidates, two relaying UE can be selected.Here, in two selections Make main relaying UE after a use in UE, and another relaying UE is used as auxiliary relaying UE.

If it is expected to receive the relay services for multiple groups (for example, organize #1 and organize #2) by relaying UE, and if can The relaying UE of relaying UE can provide relay services for 2 groups based on selecting and another relaying UE can be only these groups Part provides relay services, then can select/specify main relaying UE and auxiliary relaying UE by relaying UE, or can select/specify Only auxiliary relaying UE.For example, if UE-C is only group #1 offer relay services and UE-D is only that group #2 provides relay services, by Relaying UE relays UE supplemented by can UE-C and UE-D being selected/be specified.

In this case, about it is multiple it is auxiliary relaying UE information can with based on be stored in by relaying UE in various letters The form that breath item is ranked up is stored.It is stored in and is relayed in UE with the example packet for the information being ranked up to auxiliary relaying UE Include severity level/priority, the ii for i) it is expected to receive the group of relay services by relaying UE) UE is being relayed by relaying UE/ user It is expected that receive relay services group in member relation rank, iii) key group communication relaying UE selection timing it is whether right Ying Zuzhong carry out information and iv) instruction by relaying UE relaying UE select periodically whether for speaker information.

Main relaying UE and auxiliary relaying UE can be selected by relaying UE (that is, UE-1), and then executed disclosed below One in operation.Following operation can be executed with simultaneous selection main relaying UE and auxiliary relaying UE and then by relaying UE, or A relaying UE can be selected to execute operation to selected UE and then another UE additionally be selected to come to selected UE executes operation.

1) it is used to be added the operation of both main relaying UE and auxiliary relaying UE：

It can be sent to main relaying UE by relaying UE (that is, UE-1) and request message is added explicitly or implicitly to ask to use Make main relaying UE.In addition, can be as the information provided to main relaying UE about auxiliary relaying UE by relaying UE.Main relaying UE with It is used as relaying UE execution operations described above in enrolled operation in allowing by relaying UE to be added by relaying UE.This In the case of, it is main relaying UE can will indicate UE itselfs be it is main relaying UE information include in the message of network to be sent to. In addition, about for by relaying UE to the operation for being provided relay services by relaying UE, main relaying UE as relaying UE execution with The operation of upper description.

Request message is added with explicitly or implicitly in addition, can be sent to auxiliary relaying UE by relaying UE (that is, UE-1) Request is used as auxiliary relaying UE.In addition, the information about main relaying UE can be provided by relaying UE (that is, UE-1).Auxiliary relaying UE is closed In for allow by relaying UE can by relay UE add enrolled operation can using or cannot be used as relaying UE execution more than retouch The operation stated.If auxiliary relaying UE is about for allowing enrolled operation can be added to execute above retouch by relaying UE by relaying UE The operation stated, then it includes the message in network to be sent to that instruction UE itselfs can be the information of auxiliary relaying UE by auxiliary relaying UE In.

2) it is used to be added the operation of only main relaying UE：

It is tight for the operation by being executed by the operation of the main relaying UE of relaying UE (that is, UE-1) additions and by main relaying UE After operations described above 1).In this case, it can only be formed relaying UE by relaying UE (that is, UE-1) and be relayed The relationship of UE, and without auxiliary relaying UE is added.In such a case, it is possible to be exchanged between to form relaying UE and be relayed UE The required various items of information of relationship comprising about it is main relaying UE information.

Furthermore, it is possible to additionally execute the interactive operation of main relaying UE and auxiliary relaying UE.

4-2. is used to reselect one operation in main relaying UE and auxiliary relaying UE

If main relaying UE or auxiliary relayings UE is no longer able to relay services or be no longer able to quilt to being provided by relaying UE Relaying UE provides the chance of relay services (for example, if relaying UE and being moved away from each other by relaying UE or if relayed UE Also out of group communication service range), then it needs to reselect relaying UE.This operation includes in operation disclosed below One or more combinations.

1) by relaying UE detection/it is determined that reselecting main relaying UE, and it was found that belong to same group another UE or Can relay by relaying UE it is expected receive relay services group group communication UE, to by the UE found selection based on relay UE.Alternatively, UE (being then the auxiliary relaying UE of a selection if there is multiple auxiliary relaying UE) switching is relayed by auxiliary by relaying UE Based on relay UE, and it was found that belong to same group of another UE or the group for it is expected to receive relay services by relaying UE can be relayed Group communication UE, to by the UE found selection supplemented by relay UE.

2) by relaying UE detections/it is determined that reselect auxiliary relaying UE, and i) find to belong to same group of another UE Or can relay by relaying UE it is expected receive relay services group group communication UE, to by the UE found selection supplemented by After UE or ii) it finds to belong to same group of another UE or the group for it is expected to receive the group of relay services by relaying UE can be relayed The UE of communication to relay UE based on the UE found selections, and old master is relayed and relays UE supplemented by UE switchings.

3) main relaying UE can detect/determine main relaying UE and be no longer able to for executing operation of relays by relaying UE, and Execute at least one of the following terms：I) it is used to select the role of main relaying UE and by the role assigment of main relaying UE to another The operation of one UE and ii) for by the operation of relaying UE notice relevant informations.Here, if role be delegated it is another Relaying UE then notify that the relevant information of UE is relayed include about the information appointed, or if role is not delegated to another Relaying UE includes then only indicating that main relaying UE is no longer able to execute the information of operation of relays.In addition, after receiving information, quilt Relaying UE can execute the operation for selecting main relaying UE.

Alternatively, main relaying UE can execute at least one of the following terms：I) it is used to entrust the role of main relaying UE Task it is auxiliary relaying UE (if there is it is multiple it is auxiliary relaying UE then be one selection auxiliary relaying UE) operation and ii) for By relaying UE notices relevant information (if role is delegated to auxiliary relaying UE include about the information appointed, or if angle Color be not delegated it is auxiliary relaying UE then include only indicate main relaying UE be no longer able to execution operation of relays information) operation.It is connecing After receiving information, the operation for selecting auxiliary relaying UE can additionally be executed by relaying UE.

4) auxiliary relaying UE can detect/determine auxiliary relaying UE and be no longer able to for executing operation of relays by relaying UE, and Execute at least one of the following terms：I) it is used to select the role of auxiliary relaying UE and by the role assigment of auxiliary relaying UE to another The operation of one relaying UE and ii) for notifying relevant information (if role is delegated to another relaying UE to by relaying UE Include about the information appointed, or if role is not delegated to another relaying UE include only indicate that auxiliary relaying UE no longer can Enough execute operation of relays information) operation.After receiving information, it can be executed by relaying UE for selecting auxiliary relaying UE Operation.

5) network can detect/it is determined that reselect main relaying UE by relaying UE, and execute in the following terms It is at least one：I) it is used to select the role of main relaying UE and the behaviour by the role assigment of main relaying UE to another relaying UE Make and ii) for (including about appointing if role is delegated to another relaying UE by relaying UE notices relevant information Information, or if role is not delegated to another relaying UE include only indicate main relaying UE be no longer able to execute relaying grasp The information of work) operation.After receiving information, the operation for selecting main relaying UE can be executed by relaying UE.

Alternatively, network can execute at least one of the following terms：I) it is used to give the role assigment of main relaying UE The operation of auxiliary relaying UE (being then the auxiliary relaying UE of a selection if there is multiple auxiliary relaying UE) and ii) for by After UE notify relevant information (if role is delegated to auxiliary relaying UE include about the information appointed, or if role not Be delegated it is auxiliary relaying UE then include only indicate main relaying UE be no longer able to execution operation of relays information) operation.It is receiving After information, the operation for selecting auxiliary relaying UE can additionally be executed by relaying UE.

6) network can detect/it is determined that reselect auxiliary relaying UE by relaying UE, and execute in the following terms It is at least one：I) it is used to select the role of auxiliary relaying UE and the behaviour by the role assigment of auxiliary relaying UE to another relaying UE Make and ii) for (including about appointing if role is delegated to another relaying UE by relaying UE notices relevant information Information, or if role is not delegated to another relaying UE include only indicate auxiliary relaying UE be no longer able to execute relaying grasp The information of work) operation.After receiving information, the operation for selecting auxiliary relaying UE can be executed by relaying UE.

For operations described above 5) and operation 6), network can have about by relaying UE, main relaying UE and it is auxiliary in After the information of UE.

When in the foregoing description by UE is relayed based on auxiliary relaying UE switchings, if by relaying UE execute for be added it is main in After the operations described above of UE and auxiliary relaying both UE, then auxiliary relaying UE can be detected/be determined immediately in auxiliary relaying UE and is auxiliary Relaying UE be switched based on after relaying UE with making main relaying UE.In addition, the relaying UE through switching is (from auxiliary relaying UE to main relaying UE) can by since by relaying UE explicitly receive for it is main relaying UE role (if for example, so as to group communication just Carrying out then relay media) request or in the case of no any explicit request detection/determinations switch.

When in the foregoing description by UE is relayed based on auxiliary relaying UE switchings, if executed by relaying UE only main for being added The operations described above for relaying UE, then relaying UE can be since the role for being received the main relaying UE for by relaying UE With making main relaying UE after request.

In addition, if by relaying UE utilize main relaying UE and auxiliary relaying UE and execution for be added main relaying UE and it is auxiliary in After the operation of both UE or for the only main operation for relaying UE to be added, then can be based on for example i) about relaying UE by relaying UE Information, the ii of the group of relay services can be provided for it) signal strength, iii) preference and iv) configuration/strategy relays UE at two Between selection/determination/switching main relaying UE and auxiliary relaying UE.

In addition, by relaying UE can based on various items of information disclosed below come determine whether selection/utilize only one UE or two relaying UE of relaying.However, such item of information is enumerated just for the sake of convenience described below, and do not answer This is construed as limited to this.

Relay the quantity of UE candidates

There is the signal strength of relaying UE candidates

Whether key group communication is in the ongoing information of relaying UE selection timings

Indicate by whether relaying UE selects timing in relaying UE to be the information of speaker

Policy/configuration

By the battery charge information of relaying UE

By the location information of relaying UE

The information of the group of relay services can be provided about relaying UE for it

Historical information when being located in E-UTRAN coverage areas by relaying UE, for example, about for servicing recently The information of PLMN, instruction PLMN whether be roaming network information etc..

5. the operation of group communication application service device (AS)

5-1) group communication AS can be based on i) in the quantity or ii of the member for belonging to the group in cell) communication of the group of participation group UE/ user quantity come determine whether using multicast (that is, MBMS) scheme come be directed to specific group deliver DownLink Media/industry Business.

For example, organizing communication AS if quantity is equal to or more than or meets special datum value can determine using MBMS. In this case, group communication AS excludes (that is, without counting) (warp when the quantity of the member to belonging to the group in cell counts By relay UE) receive relay services UE.Even if accordingly it is possible to prevent for when the coverage area positioned at cell is interior and can Also by when receiving the actual quantity of the UE of MBMS media/business while being serviced by eNodeB less than a reference value Counted that MBMS's is inappropriate to use after the UE of UE (that is, the UE of MBMS media/business can not be received) participation group communication It determines.

Although whether the use of MBMS being determined in cell basis in the foregoing description, various granularities can be based on (granularity) it makes a determination.Its example may include group communication service region, MBMS service region, tracing area, multiple Tracing area, multiple cells, the region multimedia broadcast multicast services single frequency network (MBSFN), communicates for group and divides single subdistrict The region cut/divided and PLMN.

5-2) when group communication AS UE that should be communicated to addition group or participation group send MBMS service information/and MBMS service When related information/MBMS user services description (USD) information, group communication AS is not transmitted this information to be participated in via relaying UE The UE of group communication.In this case, when a group communication AS should send MBMS service information, group communication AS can be by the MBMS Information on services is sent to relaying UE.For example, if MBMS service information should i) be sent to be added specific group all UE with DownLink Media/business is delivered to the group, ii using MBMS schemes) if new UE has been passed using the addition of MBMS schemes Send the group and iii of DownLink Media/business) if the content of MBMS service information is changed, it should be by MBMS service Information is sent to UE.

In addition, MBMS service information described above includes receiving MBMS media/required various information of business by UE , for example, the media letter of service identifier (ID), Temporary Mobile Group Identity (TMGI) and multicast address/port including media Breath.

In operations described above 5-1) and operation 5-2) in, group communication AS is based on disclosed below one or more Whether item of information adds enrolled UE via relaying UE participation groups communication to determine.

It includes operation of relays information to be received from UE for adding enrolled message and this message.Believe with operation of relays Corresponding information is ceased to follow above with respect to the description for allowing enrolled operation can be added to provide by relaying UE by relaying UE. Furthermore it is possible to include in for passing through relaying UE or adding enrolled message by relaying UE by operation of relays information.

It is received from UE for adding enrolled message and this message does not include the location information of UE.

In addition, if being received from UE for adding enrolled message, then organizing communication AS can enable UE that group is added simultaneously And storage instruction UE is via the information (that is, operation of relays information) of relaying UE participation groups communication and about being authenticated to be addition group UE/ user information.

Although the description for including UE to the network trunk group communications operated is given above, proposed by the present invention Can be extended based on neighbouring group communication method and applied to including UE to UE operation of relays group communication.In addition, may be used also The case where to be extended the present invention and send media simultaneously applied to multiple UE.Furthermore it is possible to apply the present invention to such as one To a communication and broadcast communication and group communication.

In addition, can will be used in the present invention plus enrolled operations described above be interpreted as group (including with Group communicates related node or function, for example, group communication system/group communication AS/ distributors) in the operation registered.

In addition, for by finding that the operations described above of relaying UE may refer to be exchanged between by relaying UE The discovery operation executed while message, or simply referred in the present invention for by being detected/being found by relaying UE Relay the operation of UE.

In addition, being used for group communication, the applications described above service of AS, group communication AS or group communication system in the present invention Device can correspond to or the GCSE AS including Fig. 6.

Additionally, this invention is not limited to LTE/EPC networks and can be adapted for including that 3GPP accesses net (for example, UTRAN/ ) and non-3 GPP access network (for example, WLAN) all UMTS/EPS mobile communication system of both GERAN/E-UTRAN.In addition, It it may also be possible to apply the invention for using all other radio mobile communication system environments for having network-based control.

It is now based on the description for the operation that foregoing description provides according to the embodiment of the present invention.

Fig. 7 instantiates the communication of group according to the embodiment of the present invention.Fig. 7 assumes UE-1 100, UE-2 200 and UE-3 300 be the member of group #1 and UE-1 100 can not be communicated and then via UE to network trunk via the group of network participation group #1 The group of (that is, UE-2) participation group #1 communicates.

In the step 1 of Fig. 7, UE-2 200 is sent to GCSE AS 800 for group/register in the group to be added to participate in The message of the group communication of group #1, that is, GCSE registration messages.Therefore, in the step 2 of Fig. 7, GCSE AS800 are sent out to UE-2 200 Send the response message to the GCSE registration messages received from UE-2 200, that is, GCSE registers Ack (confirmation) message.

In the step 3 of Fig. 7, the detections of UE-1 100 or find to participate in group #1 group communication UE to network trunk.Knot Fruit, UE-2 200 are confirmed as the communication of relaying group.For finding/determining that the detailed description of the method for relaying UE has been described above pass It is presented in the group communication according to the present invention based on ProSe, and then is omitted to avoid redundancy herein.

In the step 4 of Fig. 7, UE-1 100 is sent to UE-2 200 for group/registered in the group to participate in a group #1 to be added Group communication message, that is, GCSE registration messages.(alternatively, this message is ultimately routed to GCSE AS800, Jin Erke To be understood to be sent to GCSE AS 800.)

In the step 5 of Fig. 7, UE-2 200 sends the GCSE registrations received from UE-1 100 to GCSE AS 800 and disappears Breath.In this case, operation of relays information can be included in GCSE registration messages by UE-2 200.Alternatively, relaying behaviour Making information can include in step 4 by UE-1 100.The detailed description of operation of relays information has been described above about according to this The group communication based on ProSe of invention is presented, and then is omitted to avoid redundancy herein.

In the step 6 of Fig. 7, the GCSE AS 800 that GCSE registration messages have been received detect that UE-1 100 it is expected Via the group communication of relaying UE participation groups #1.GCSE AS 800 send the GCSE to being received from UE-1 100 to UE-2 200 The response message of registration message, that is, GCSE registers Ack message.(alternatively, this message is ultimately routed to UE-1 100, into And it is construed as being sent to UE-1 100.)

In the step 7 of Fig. 7, UE-2 200 sends the GCSE received from GCSE AS 800 to UE-1 100 and registers Ack Message.

In the step 8 of Fig. 7, the group for starting group #1, which communicates and assumes that GCSE AS 800 are determined, uses unicast scheme To send DownLink Media/business.Therefore, GCSE AS 800 send downlink matchmaker using unicast scheme to UE-2 200 Body/business.For example, GCSE AS 800 are determined sends DownLink Media/business using unicast scheme, because of participation group #1 Group communicate and reside in the quantity of all UE being populated in the cell of UE-2 200 above and be still insufficient to allow and use MBMS Scheme (that is, being less than a reference value).When the quantity to UE counts, not to via relaying UE (that is, UE-1) participation group communication UE counted or considered.

In the step 9 of Fig. 7, the UE-2 200 of DownLink Media/business for group #1 has been received from network It is communicated by ProSe and media/business is sent to UE-1 100.

In the step 10 of Fig. 7, UE-3 300 is sent to GCSE AS 800 for group/register in the group to be added to participate in The message of the group communication of group #1, that is, GCSE registration messages.Assume that UE-3 300 is resident on cell identical with UE-2200 On.

In the step 11 of Fig. 7, GCSE AS 800 send to UE-3 300 and are registered to the GCSE received from UE-3 300 The response message of message, that is, GCSE registers Ack message.

In the step 12 of Fig. 7, the determinations of GCSE AS 800 make UE-2 200 and UE-3 300 cell being located therein DownLink Media/business is sent with MBMS schemes.For example, GCSE AS 800 are determined sends downlink using MBMS schemes Link Media/business, because the group of participation group #1 is communicated and resided in is populated with the small of UE-2 200 and UE-3 300 above The quantity of all UE in area meets for determining a reference value using MBMS.When the quantity to UE counts, not to warp UE by relaying the communication of UE (that is, UE-1 100 in Fig. 7) participation group is counted or is considered.

In the step 13, step 14 and step 15 of Fig. 7, GCSE AS 800 are obtained from BM-SC 700 and are delivered for MBMS USD information, and MBMS USD information corresponding with MBMS service information is sent to UE-2 200 and UE-3 300.In order to MBMS USD information is not sent to UE-1 100 by reference, GCSE AS 800, because GCSE AS 800 know that UE-1 100 is passed through By relaying the communication of UE participation groups.

In the step 16 of Fig. 7, GCSE AS 800 send DownLink Media/business using MBMS schemes.UE-2 200 and UE-3 300 receives DownLink Media/business based on the MBMS USD information obtained in step 14 and step 15.

In the step 17 of Fig. 7, the UE-2 200 of DownLink Media/business for group #1 has been received from network It is communicated by ProSe and media/business is sent to UE-1 100.

In addition, although the step 12 hypothesis group communication of Fig. 7 is carrying out (that is, having started a group communication in step 8), It is that can start a group communication in step 12.

In addition, Fig. 7 assumes that UE-2 200 is the member of the corresponding group of #1 of group communication participated in UE-1 100.However, i.e. Make when UE-2 200 is not the member of group #1, the group communication of UE-2 200 or 100 relaying group #1 of UE-1.This In the case of, the step 1 and step 2 of Fig. 7 are not necessary.

Fig. 8 instantiates the group communication of another embodiment according to the present invention.Fig. 8 assumes UE-1 100,200 and of UE-2 UE-3 300 is the member of group #1 and UE-1 100 can not be communicated and then via UE to net via the group of network participation group #1 Network relays the group communication of (that is, UE-2 200) participation group #1.

In the step 1 of Fig. 8, it is assumed that the group communication for organizing #1 is carrying out.GCSE AS 800 are sent out using MBMS schemes Send DownLink Media/business.Therefore, UE-2 200 and UE-3 300 are received down based on the MBMS USD information obtained Line link media/business.

In the step 2 of Fig. 8, the UE-2 200 of DownLink Media/business for group #1 has been received from network It is communicated by ProSe and media/business is sent to UE-1 100.

In the step 3 of Fig. 8, MBMS service information is changed.This means that one that includes in MBMS service information Or more item of information be changed/update.Therefore, 800 determinations of GCSE AS will MBMS USD corresponding with MBMS service information Information is sent to the UE of participation group communication.The example that wherein MBMS service information changes includes related when being carried with MBMS When QoS is changed, new TMGI is distributed instead of old TMGI and then via the MBMS carrying execution group communications for applying the QoS through change The case where.

In the step 4 and step 5 of Fig. 8, GCSE AS 800 will MBMS USD information hair corresponding with MBMS service information It is sent to UE-2 200 and UE-3 300.Here, MBMS USD information is not sent to UE-1 100 by GCSE AS 800, because GCSE AS 800 know UE-1 100 via relaying UE participation groups communication.

In the step 6 of Fig. 8, GCSE AS 800 send DownLink Media/business using MBMS schemes.Therefore, UE-2 200 and UE-3 300 receives DownLink Media/business based on the MBMS USD information obtained.

In the step 7 of Fig. 8, the UE-2 200 of DownLink Media/business for group #1 has been received from network It is communicated by ProSe and media/business is sent to UE-1 100.

In addition, Fig. 8 assumes that UE-2 200 is the member of the corresponding group of #1 of group communication participated in UE-1 100.However, i.e. Make when UE-2 200 is not the member of group #1, the group communication of UE-2 200 or 100 relaying group #1 of UE-1.

The embodiment described above of the present invention can independently be applied or two or more can be applied simultaneously Embodiment.

Fig. 9 is the view for the configuration for instantiating UE 100 and network node 200 according to the embodiment of the present invention.

With reference to Fig. 9, UE 100 according to the present invention may include transceiver module 110, processor 120 and memory 130. Transceiver module 110 can be configured as sent to external device (ED) and from external device (ED) receive various types of signals, data and Information.UE 100 can be by wiredly and/or wirelessly being connected to external device (ED).Processor 120 can be configured as to UE 100 provide overall control, and handle the information to be sent to external device (ED) by UE 100 or be received from external device (ED).Storage Device 130 can store processed information and reach special time period, and can be replaced with the element of such as buffer (not shown).

UE 100 according to the embodiment of the present invention can be configured as based on determine by the ProSe network whether It is activated or result that whether ProSe UE are found participates in ProSe.The processor 120 of UE 100 can be configured as use Transceiver module 110 sends the information based on ProSe to network node 200.Processor 120 can be configured as using transmitting-receiving Device module 110 receives ProSe License Infos from network node 200.Processor 120 can be configured as processing signal for Another UE establishes immediate data path.Processor 120, which can be configured as, to be executed using transceiver module 110 with another UE's Direct communication.Processor 120, which can be configured as, to be believed using transceiver module 110 to send ProSe results to network node 200 Breath.

With reference to Fig. 9, the network according to the invention node 200 may include transceiver module 210, processor 220 and storage Device 230.Transceiver module 210 can be configured as sent to external device (ED) and from external device (ED) receive various types of signals, Data and information.Network node 200 can be by wiredly and/or wirelessly being connected to external device (ED).Processor 220 can by with It is set to network node 200 and overall control is provided, and handle and to be sent to external device (ED) by network node 200 or from outside The information that device receives.Memory 230 can store processed information and reach special time period, and can be by such as buffer The element of (not shown) replaces.

Network node 200 according to the embodiment of the present invention can be configured as supports ProSe in multiple UE.Net The processor 220 of network node 200 can be configured as receives base using transceiver module 210 from UE 100 or another network nodes In the information of ProSe.Processor 220 can be configured as sends ProSe license letters using transceiver module 210 to UE100 Breath.Processor 220 can be configured as processing and UE 100 and another UE supported to establish the signal in immediate data path.Processor 220 can be configured as using transceiver module 210 from UE 100 receive ProSe result informations.

In addition, for the detailed configuration of UE 100 and network node 200, the above description of the present invention can be independently applied Embodiment or two or more embodiments can be applied simultaneously, and repetitive description has been omitted for clarity.

The embodiment described above of the present invention can be by various means (for example, hardware, firmware, software or its group Close) it realizes.

In hardware configuration, method according to the embodiment of the present invention can be by one or more application-specific integrated circuits (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can Program the realizations such as gate array (FPGA), processor, controller, microcontroller, microprocessor.

In firmware configuration or software configuration, method according to the embodiment of the present invention can be described above to execute The form of module, process, the function of functions or operations etc. is realized.Software code can be stored in memory cell simultaneously And it is executed by processor.Memory cell can be located inside or outside processor and via various any means knowns and processor Exchange data.

It, can be by it will be understood by those skilled in the art that in the case of the spirit for not departing from the present invention and necessary characteristic The present invention is executed according to other ad hoc fashions in addition to mode those of described here.The above embodiment therefore will be in all sides Face is interpreted illustrative rather than restrictive.The scope of the present invention should be by appended claims and its legal equivalents It determines, without being determined by foregoing description, and all changes fallen into the meaning and equivalent scope of appended claims are intended to It is included therein.

The embodiments of the present invention being described below are the combinations of the element and feature of the present invention.Unless otherwise mentioned, Otherwise elements or features are considered selective.Each element or feature can not combined with other elements or features In the case of put into practice.Furthermore it is possible to construct embodiments of the present invention by the part of composition element and/or feature.It can To rearrange the operation order described in embodiments of the present invention.Some constructions of any one embodiment can be by Including that in another embodiment and the corresponding construction of another embodiment can be used to replace.For those skilled in the art Speech it is evident that can not be used as this hair in combination in the claim explicitly quoted one another in the following claims Bright embodiment is presented, or is used as new claim by subsequent amendment after having submitted the application and is wrapped It includes.

Industrial feasibility

The embodiment described above of the present invention is suitable for various mobile communication system.

Claims (16)

1. a kind of method being based on the communication of adjacent service (ProSe) execution group in a wireless communication system, this method includes following Step：

By the execution group communication registration within network nodes of trunk subscriber equipment UE；And

It is executed by the relaying UE and is communicated with the group of the network node,

Wherein, if be equal to or more than except by the quantity of the UE in addition to relaying UE in the UE registered in the network node A reference value, then described group of communication are configured with multimedia broadcasting and multimedia service MBMS schemes to send downlink letter Number.

2. according to the method described in claim 1, this method is further comprising the steps of：

By the relaying UE from the first message by relaying UE receptions for the group registration of the network node；And

The second message for the group registration by relaying UE is sent to the network node.

3. according to the method described in claim 2, wherein, the second message includes the location information of the relaying UE.

4. according to the method described in claim 3, wherein, the location information includes tracing area mark (TAI) and E-UTRAN At least one of Cell Global Identifier (ECGI).

5. according to the method described in claim 3, wherein, the second message includes operation of relays information, and

Wherein, at least one of described operation of relays information instruction the following terms：

Whether the relaying UE is directed to described by relaying UE execution operation of relays；

Whether the group registration by relaying UE executes via the relaying UE；

It is described to be relayed whether UE communicates via the relaying UE participation groups；

It is described whether to be located in network coverage by relaying UE；

It is described whether to be located in the E-UTRAN coverage areas of support group communication by relaying UE；And

It is described whether to be located within the scope of group communication service by relaying UE.

6. according to the method described in claim 3, wherein, the second message includes the identification information of the relaying UE.

7. according to the method described in claim 2, this method is further comprising the steps of：MBMS service is received from the network node Information.

8. according to the method described in claim 7, wherein, the MBMS service information is configured as being only sent to be located at described At least one relaying UE in the service range of group communication and at least one at least one relaying UE by relaying UE.

9. according to the method described in claim 7, wherein, the MBMS service information include media service identifier (ID), At least one of Temporary Mobile Group Identity (TMGI) and multicast address.

10. according to the method described in claim 1, wherein, the granularity of the service range of described group of communication is single subdistrict, organizes and lead to Telecommunications services region, MBMS service region, single tracing area, multiple tracing areas, multiple cells, multimedia broadcast multicast services The region single frequency network (MBSFN), one be directed in the preassigned region of group communication and public land mobile network (PLMN).

11. a kind of method being based on the communication of adjacent service (ProSe) support group by network node in a wireless communication system, the party Method includes the following steps：

At least one user equipment (UE) is registered in specific group, to receive data from the network node；And

For the multiple UE determinations group communication plans registered in the specific group,

Wherein, if except meeting a reference value by the quantity of the UE in addition to relaying UE, described group of communication plan is confirmed as more matchmakers Body is broadcasted and multimedia service MBMS schemes.

12. according to the method for claim 11, this method is further comprising the steps of：By the network node from broadcast group broadcast Service centre (BM-SC) receives describes USD information for the user service of MBMS deliverings.

13. according to the method for claim 12, wherein the network node is configured as only to positioned at described group of communication At least one relaying UE and at least one at least one relaying UE by relaying UE in service range send MBMS Information.

14. according to the method for claim 12, wherein the USD information is configured as by the clothes positioned at described group of communication Relaying UE in business range is for receiving DownLink Media/business.

15. it is a kind of in a wireless communication system based on adjacent service ProSe execution groups communication trunk subscriber equipment UE (or ProSe UE are to network trunk), relaying UE includes：

Radio frequency (RF) unit；And

Processor,

Wherein, the processor is configured as execution group communication registration within network nodes, and executes and the network node Group communication, and

Wherein, if be equal to or more than except by the quantity of the UE in addition to relaying UE in the UE registered in the network node A reference value, then described group of communication are configured with multimedia broadcasting and multimedia service MBMS schemes to send downlink letter Number.

16. a kind of network node being based on the communication of adjacent service (ProSe) support group in a wireless communication system, the network node Including：

Radio frequency (RF) unit；And

Processor,

Wherein, described group of communication is configured as registering at least one user equipment (UE) in specific group, to from the network section Point receives data, and at least one UE determinations group communication plan to be registered in the specific group, and

Wherein, if in the multiple UE registered in the network node except by relaying UE in addition to UE quantity be equal to or More than a reference value, then described group of communication plan is confirmed as multimedia broadcasting and multimedia service (MBMS) scheme.