CN1918823B

CN1918823B - Method for transmitting service information between network nodes for MBMS service in mobile communication system

Info

Publication number: CN1918823B
Application number: CN2005800046061A
Authority: CN
Inventors: 郑明哲; 申容雨; 金玟廷
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2004-02-13
Filing date: 2005-02-14
Publication date: 2010-06-23
Anticipated expiration: 2025-02-14
Also published as: CN1918823A

Abstract

In a method for transmitting service information between network nodes in a wireless system providing one or more multimedia broadcast/multicast service (MBMS), when one terminal is moved from a first network node to a cell managed by a second network node, the first network node receives status information of the cell from the second network node, and when the specific terminal is moved into the cell, the first network node selectively transmits an MBMS connection request message to the second network node. In this case, the status information includes MBMS service area information if a neighboring cell with respect to the MBMS service for which the specific terminal has joined and/or information an MBMS function is supported.

Description

In mobile communication system, be used for the method that sends service information between the network node of mbms service

Technical field

The present invention relates to the mbms service (MBMS) in the mobile communication system, and more particularly, relate to the method that when a RNC moves to another RNC, between network node (element), sends service information when terminal.

Background technology

As the wireless universal telecommunication system (UMTS) of European type i MT-2000 system is to develop and the 3-G (Generation Three mobile communication system) of coming from European standard, and European standard is that known being devoted to provides the Global Systems for Mobile communications (GSM) based on the improved mobile communication service of GSM core network and Wideband Code Division Multiple Access (WCDMA) (W-CDMA) wireless connect technology.

Fig. 1 illustrates the exemplary basic structure of common UMTS network.As shown in fig. 1, UMTS roughly is divided into terminal (or subscriber equipment: UE), UTRAN, and core network (CN).

UTRAN comprises one or more RNSs (RNS), and each RNS comprises a radio network controller (RNC) and a plurality of base station (being called " Node B " once).Each Node B is managed by RNC, reception is passed through the information that up link (UL: from terminal to network) sends by the physical layer of terminal, and send data to terminal, and as access point (AP) work that is used for the UTRAN of terminal by down link (DL: from the network to the terminal).

RNC handle unlimited resources distribution and as with the AP of CN.

Fig. 2 illustrates the syndeton between the UTRAN and terminal in the UMTS network.

With reference to figure 2, for the service that provides among the UMTS is provided, terminal must be connected with CN, and send the information of terminal and CN by the mode of UTRAN.CN links to each other to transmit and receive data and control messages by the Iu interface with RNC.Each terminal that links to each other with the UMTS network is managed by the specific RNC of UTRAN.The RNC of office terminal is called SRNC (Serving RNC).That is, SRNC refers to be used for the RNC of the AP of the conduct of transfer of data of particular terminal and CN.

The role of SRNC about carrying out the second layer of OSI (open system interface) through wave point data that receive or that be sent to terminal, and distribute the Radio Resource that is suitable for providing service.The radio resource management function of SRNC comprises the every kind controlled function relevant with particular terminal, such as transmission channel being set, determining handover or open Loop Power control.The terminal that is connected with CN by UTRAN at specified point only has a SRNC.

Usually, RNC is used for being connected between terminal and the SRNC, but moves forward in terminal under the situation in the zone of being handled by different RNCs, and the mode of the RNC in the zone that terminal moves forward into by terminal is connected with SRNC.

For example, terminal connects by R1 (RNC1) at first, and when terminal moves forward into the unit of being managed by R2 (RNC2), terminal is connected with R1 by R2 by the Iur interface.Just, R1 still the office terminal and as with the access point of CN, and R2 carries out the routing user data simply or distributes the partial function of the code of public resource.

In the UMTS network, except SRNC, each RNC that will link to each other with terminal is called DRNC (RNC floats).According to connection status, a terminal can have one or several DRNC.

SRNC and DRNC send by the Iur interface and receive signaling message, set up message and Radio Link additional messages etc. such as uplink signalling pass-along message, Radio Link.

For particular terminal, the difference of SRNC and DRNC is rational.Because RNC and Node B have dependency relation in UTRAN, can not go out RNC in the Node B lateral areas.That is,, the RNC that handles the management of specific Node B is called CRNC (control RNC) for RNC and other RNC of discriminate B.Particularly, link to each other with Node B by Iub interface and the RNC of the Radio Resource of Control Node B corresponding to the CRNC of Node B.According to the structure of UTRAN, CRNC and Node B have the relation of point-to-multipoint.CRNC carries out at inner control load of the unit of CRNC self-management and traffic congestion, is controlled at the holding capacity of the new Radio Link of setting up in the unit and the function of allocation of codes.

Radio Resource control (RRC) layer is defined within the 3rd layer of wireless protocols that RNC and terminal be positioned at.RRC be responsible for about radio bearer foundation, reconfigure and discharge control transmission and physical channel.In this case, RB service refers to the service that is used for the transfer of data between terminal and the UTRAN that the second layer by wireless protocols provides.The configuration of RB refers to regulate the characteristic of protocol layer and the required channel of special services is provided and sets up each special parameter and method of operation.

When the rrc layer of rrc layer that connects particular terminal and RNC when sending and receiving RRC message each other, terminal is in the RRC connection mode, and when the rrc layer of the rrc layer of particular terminal and RNC was not connected, terminal was in the RRC idle mode state.When terminal being connected with RNC, in RNC, produce the SRNC (Serving RNC) that is used for directly managing corresponding terminal, and after this, RNC is the identified in units corresponding terminal with the unit and manages it by RRC.

Simultaneously, if terminal is in the RRC idle mode state, its existence can't be discerned by RNC, and then with geographic area or Routing Area, that is, the area unit bigger than the unit is that unit is by CN (MSC or SGSN) office terminal.Just, for the terminal that is in the RRC idle mode state, only its existence can should be made terminal be in RRC connection mode state by RRC is connected with RNC by the identified in units in bigger zone, to receive the general mobile communication service such as voice or data.

Specifically describe MBMS now.

MBMS refer to by use MBMS carrying service except that down link to provide to flow or background service to the method for a plurality of terminals.In UTRAN, point-to-multipoint RB and point-to-point RB service are used in the MBMS carrying.MBMS can be only by system's support of the function of the MBMS in the UMTS system that is provided for the R6 version.For example, in the UMTS system such as R99, R4 and R5 or R6UMTS system, if system does not consider the MBMS function, it can not provide MBMS.

MBMS can be categorized as broadcast mode and multiple access communication pattern.The MBMS broadcast mode is to be used for sending the service of multi-medium data to each user of broadcast area, and MBMS multiple access communication pattern is to be used to send the service of multi-medium data to the only particular group in multiple access communication zone.Broadcast area refers to wherein can provide the zone of broadcast service, and the multiple access communication zone refers to wherein can provide the zone of multiple access communication service.Broadcast area and multiple access communication zone are called as the coverage.

Fig. 3 illustrates the UMTS network and provides specific MBMS the process that (service 1) gives UE by using the multiple access communication pattern.

At first, want the user (UE1) who receives the MBMS service must carry out subscription procedure with reference to figure 2.Here, reservation refers to the behavior of opening relationships between ISP and user.Equally, wish that the user who receives the MBMS service also must receive the service statement that provides from network.Here, the service statement service list (index) that refers to notify terminal to be supplied and the function of relevant information.

Equally, if the MBMS of user view receiving multicast pattern service, the user should participate in the multiple access communication subscription group.Here " multiple access communication group " finger is received the customer group of specific multiple access communication service, and the multiple access communication group with the particular user of wishing the specific multiple access communication service of reception is incorporated in " participation " expression into.Use this participation program, terminal can be notified the intention of the concrete multiple access communication data of its reception of UTRAN (service).On the contrary, for the terminal that has added concrete multiple access communication group, the program that stops participation multiple access communication group is called " leaving ".For each terminal is carried out reservation, is participated in and leave program, and terminal can before the transfer of data, during, or any time afterwards carry out reservation, participate in and leave program.

When concrete MBMS service is being carried out, can be used for one or more sessions of this service in succession.When producing the data to be sent be used for concrete MBMS service in the MBMS data source, core network (CN) notice RNC session begins.On the contrary, when data further not transmitted were used for concrete MBMS service, CN notice RNC session stopped.Begin and between session stops, can carrying out the transfer of data that is used for concrete MBMS service in session.Here, those terminals that only added the multiple access communication group of MBMS service can receive the data that send by transfer of data.

In the program that above-mentioned session begins, receive RNC that session begins from core network and send MBMS and be notified to terminal.Here, the function of the approaching RNC of the MBMS notice transfer of data that refers to be used to notify terminal to be used for the concrete MBMS service in the discrete cell.Send MBMS notice one or many up to the real data that sends service.RNC is identified in the tally function of the terminal number of wishing in the concrete unit that the concrete MBMS of reception serves by using the execution of MBMS notification procedure.

Tally function is used to be identified for providing the radio bearer of concrete MBMS service should be set to point-to-multipoint or point-to-point, or is not set to not have radio bearer.

In order to select the MBMS radio bearer, RNC is with the number and the inner threshold that is provided with of the terminal counted.Promptly, after carrying out tally function, if the number of the terminal of existence is less than threshold value in the corresponding units, RNC can be provided with point-to-point MBMS radio bearer, if and the number of the terminal that exists in the corresponding units can be provided with point-to-multipoint MBMS radio bearer more than or equal to threshold value.Be provided with after the MBMS radio bearer, RNC notice terminal is about corresponding radio bearer.

After being provided with point-to-point radio bearer, wish that the terminal that receives service all is in RRC connection mode state for concrete service.Yet, when being provided with the point-to-multipoint radio bearer, wish that all terminals that receive respective service do not need to be in RRC connection mode state for concrete service.That is, but be in the idle mode state terminal also acceptance point multipoint wireless is carried.Yet according to the result of counting process, if there is not terminal to want concrete MBMS service, RNC neither is provided with radio bearer and does not also send the MBMS data.Although no user is wanted the fact of serving and by RNC radio bearer is set is waste of radio resources.

In addition, when during the session in MBMS service when core network sends the data of MBMS service, RNC begins to send data by using the radio bearer that is provided with, and when receiving session from CN when stopping, RNC discharges the radio bearer of previous setting.

The MBMS coverage refers to wherein specific MBMS service to be offered the zone of specific terminal.The MBMS coverage can be indicated by one or more unit, and can be included in by in the zone of a RNC management or in the zone by some RNC management.The tabulation of adjacent cells information refers to comprise the tabulation by the information of the unit that is positioned near the DRNC management the RNC.

Fig. 4 illustrates MBMS UE link process.

As shown in Figure 4, in MBMS UE link process, SRNC has preengage the MBMS service environment of the particular terminal registration of specific MBMS service by the SRNC self-management.The MBMS service environment refers to be included in the required information of the specific MBMS service of management among the UTRAN.Move into the unit of being handled by SRNC if preengage the particular terminal of specific MBMS service, SRNC receives MBMS UE link request message (step S10) from CN.Then, SRNC registers the information of the MBMS service environment of serving about MBMS and sends MBMS UE link response message to CN (step S11) on terminal.If there is no, then newly produce the MBMS service environment about the MBMS service environment of MBMS service.

Fig. 5 illustrates the MBMS additional process.

With reference to figure 5, the RNC that the MBMS service is provided is in each unit of being handled by RNC self, and identification and management are in the terminal of RRC connection mode state in the terminal of participating in specific MBMS service.For this purpose, RNC generates the tabulation of the terminal that is in the RRC connection mode for each MBMS service of each unit.RRC connection mode terminal list comprises the identifier (URNTI) of the terminal of participating in specific MBMS service.

The MBMS connection procedure refers to such process, wherein, ongoing MBMS service in the MBMS service that has added about the terminal that is in RRC connection mode state, if the cell moving that terminal is handled from SRNC is to unit that DRNC handles, SRNC sends to DRNC by MBMS connection request message with end message, makes can add the terminal of request MBMS connection to RRC connection mode terminal list that DRNC manages about MBMS service DRNC.

Simultaneously, the MBMS service of not carrying out in the MBMS service that has added about terminal, in cell moving that terminal is handled from SRNC after the unit that DRNC handles, when SRNC when CN receives session about the MBMS service and begins, SRNC sends end message to DRNC by MBMS connection request message, and the terminal that makes DRNC request MBMS can be connected is added RRC connection mode terminal list to.MBMS connection request message comprises the ID of the added MBMS service of ID, the terminal of the unit that terminal moves into, and terminal identifier (URNTI).

Receive from SRNC under (step S20) about the situation of the MBMS connection request message of particular terminal, if can dividing to be used in, DRNC keep the resource of RRC connection mode state to give terminal, the MBMS connection request of DRNC receiving terminal and terminal identifier is added into the RRC connection mode terminal list of the MBMS service that adds about terminal (that is the MBMS service of the unit that moves into of terminal).After this, DRNC sends sure response to SRNC (step S21) by the MBMS connection response message.

Under the situation that receives the MBMS connection response message, SRNC keeps terminal to be in RRC connection mode state in the unit that terminal moves into, and by using point-to-point radio bearer to send the MBMS service data to terminal.That is, by using point-to-point radio bearer the MBMS service data is sent to DRNC by SRNC, and send to terminal from DRNC again.

When DRNC when SRNC receives MBMS connection request message about particular terminal, it does not always accept it.Just, be not used to carry out the resource that RRC connects and keep the RRC connection mode if DRNC does not have about terminal, the MBMS connection request of DRNC refusal terminal and transmission negative response are to SRNC.

Yet prior art has following problem when SRNC sends MBMS connection request message to DRNC.

Just, when particular terminal moved into the unit of DRNC management, SRNC sent MBMS connection request message to DRNC, and the state of pipe unit not.Yet,,, can not provide MBMS service for the unit of DRNC if the unit of the DRNC that terminal moves into is not included in the MBMS coverage of terminal adding MBMS service aspect this.In this case, SRNC does not need to send MBMS connection request message about the MBMS service to MBMS wherein can not be provided the DRNC unit of service.

In addition, if the DRNC of the unit that terminal moves into or Node B are not supported the MBMS function, the unit can not provide the MBMS service of terminal-joined.Equally, in this case, SRNC does not need to send the DRNC of MBMS connection request message to administrative unit.

But, in the prior art, although the DRNC of the unit that terminal moves into does not need to receive the MBMS connection message, SRNC does not know corresponding situation, and unnecessarily sends the MBMS connection message to DRNC.The transmission of this unnecessary MBMS connection message causes the increase of signaling load between SRNC and the DRNC, causes the reduction of the service efficiency of congested increase and Internet resources in the network.

Summary of the invention

Therefore, a target of the present invention provides and be used for the method that effectively sends service information when carrying out the MBMS service between network node.

Another target of the present invention provides the method that is used to send service information, and it can reduce congested in the network by reducing signaling load between SRNC (service wireless network controller) and the DRNC (unsteady RNC).

Another target of the present invention provides the method for the information on services that is used to send the MBMS service, its can by when terminal when a RNC moves to another RNC, optionally send the service efficiency that MBMS connection request message increases Internet resources by SRNC or DRNC.

For the above-mentioned target of all or part of at least realization, the method that sends service information between network node that is used for MBMS is provided, wherein when terminal when first network node moves to the unit of second network node control, first network node receives the state information of this unit from the 3rd network node, wherein, the indication of this state information is about the MBMS service region information of the adjacent unit of the added MBMS service of terminal and about whether supporting the information of MBMS function, wherein, this state information is that the Iu interface signaling message by the 3rd network node sends, wherein, this Iu interface signaling message comprises the information of whether supporting the MBMS function about adjacent unit, wherein, the state information that this first network node receives from the 3rd network node is stored in the adjacent unit information list, and when this terminal moves into this unit, only when this unit is in the MBMS coverage or only when the MBMS function is supported in this unit, this first network node sends to second network node according to the state information of being stored with MBMS connection request message, wherein, the MBMS function support of this first network node adjacent unit or not support information add the adjacent unit information list to.

Preferably, first to the 3rd network node is respectively SRNC, DRNC and core network (CN).

For all or part of at least these advantages of realization, the method that sends service information between network node that is used for the MBMS service further is provided, wherein when terminal when first network node moves to unit by second network node control, second network node provides the state information of this unit according to the request of first network node, wherein, this state information is to send by the response message of setting up request message about the Radio Link of first network node, wherein, the response message that this Radio Link is set up request message comprises the MBMS service region information of adjacent unit and about whether supporting the information of MBMS function, wherein, the state information that this first network node stores receives from second network node, so that when this terminal moves into this unit subsequently, only when this unit is in specific MBMS coverage or only when the MBMS function is supported in this unit, this first network node sends to second network node based on the state information of being stored with MBMS connection request message, wherein, this first network node MBMS service region information is added the adjacent unit information list to.

For all or part of at least these advantages of realization, the method that sends service information between network node that is used for the MBMS service further is provided, wherein, when terminal when first network node moves to the unit of second network node control, the state information that first network node receives and stores this unit from the 3rd network node, wherein, the indication of this state information is about the MBMS service region information of the adjacent unit of the added MBMS service of terminal and about whether supporting the information of MBMS function, wherein, this this state information of first network node is stored in the adjacent unit information list, wherein, after this terminal moves into this unit, only when this unit is in the MBMS coverage or only when the MBMS function is supported in this unit, this first network node sends to second network node according to the state information of being stored with MBMS connection request message, wherein, this state information is that the MBMS session by the 3rd network node begins message and sends, wherein, this MBMS session begins that message comprises the MBMS service region information of adjacent unit and about whether supporting the information of MBMS function, wherein, this first network node MBMS service region information is added the adjacent unit information list to.

Description of drawings

Specifically describe the present invention below with reference to the accompanying drawings, wherein identical reference number refers to components identical, wherein:

Fig. 1 illustrates the exemplary basic structure of general UMTS network;

Fig. 2 illustrates the syndeton between the UTRAN and terminal in the UMTS network;

Fig. 3 illustrates in the UMTS network by using the multiple access communication pattern that the process of specific MBMS service (service 1) is provided;

Fig. 4 illustrates MBMS UE link process;

Fig. 5 illustrates the MBMS additional process;

Fig. 6 illustrates the process that SRNC wherein receives general Iu signaling message and adds the adjacent unit information list from CN;

Fig. 7 illustrates the process that SRNC wherein receives MBMS UE link message and adds the adjacent unit information list from CN;

Fig. 8 illustrates wherein, and SRNC receives the process that the MBMS session begins message and adds the adjacent unit information list from CN;

Fig. 9 illustrates the process that SRNC wherein receives the MBMS connection response message and adds the adjacent unit information list from DRNC; And

Figure 10 illustrates wherein, and SRNC receives the process that Radio Link is set up response message and added the adjacent unit information list from DRNC;

Embodiment

In mobile communication system, realize the present invention such as the UMTS (Universal Mobile Telecommunications System) that develops by 3GPP.The present invention also can be applicable to the communication system with various criterion work.The preferred embodiments of the present invention are described now.

The present invention proposes SRNC and only just send the scheme of MBMS connection request message to DRNC when necessary the time, and unlike in the prior art when particular terminal moves into unit by DRNC management, SRNC always sends MBMS connection request message to DRNC, and the state of pipe unit not.For this purpose, when SRNC carries out MBMS to the connection procedure of DRNC, its receives the MBMS service region information of adjacent unit and the information of MBMS function about whether is provided from interface (Iu or Iur), determines whether to send MBMS connection request message based on this SRNC.

In the present invention, whether indication provides the information of MBMS function to refer to the information that the MBMS function can be supported/can not support by the discrete cell of RNC management.Preferably, if the version of the RNC of administrative unit or provide Radio Resource to be lower than R6 to the version of the Node B of unit, if or but the version of the version of this RNC or this Node B is R6 do not support the function of MBMS service, about the MBMS function of unit can support/can not support information having the MBMS function can not support information.If the RNC of administrative unit or provide Radio Resource to have the function of supporting the MBMS service to the Node B of unit, but then it has MBMS function support information.

In the present invention, SRNC receives the MBMS service region information of the unit of being managed by RNC or adjacent R NC from the CN that is connected to SRNC.In addition, the MBMS service region information that adds from the terminal of the unit that the DRNC of the unit that particular terminal moves into moves into of SRNC receiving terminal.Like this, if the SRNC determining unit is not the MBMS coverage about the MBMS service, when particular terminal moved into the unit after a while, the MBMS that SRNC does not send about the MBMS service served the DRNC of connection request message to administrative unit, and the MBMS service was not provided or ptp services is provided.

In addition, SRNC receives about whether support the information of MBMS function the unit by RNC or adjacent R NC management from the CN that is connected to SRNC self.In addition, SRNC receives about whether supporting the information of MBMS function the unit that moves in particular terminal from the DRNC of unit.If the SRNC determining unit is not supported the MBMS function, when particular terminal moved into the unit, SRNC did not send about the MBMS connection request message of each MBMS service DRNC to administrative unit, the MBMS service is not provided or ptp services is provided.

SRNC can receive the MBMS service region information of adjacent cells or about whether supporting the information of MBMS from the CN that links to each other with SRNC self.

Fig. 6 illustrates the process that SRNC wherein receives common Iu signaling message and adds the adjacent unit information list from CN.

As shown in Figure 6, SRNC receives common Iu signaling message (step S30) from CN.The Iu signaling message can comprise the information of whether supporting the MBMS function about the unit of being managed by RNC or contiguous RNC.In addition, no matter CN can send common Iu signaling message to SRNC and the MBMS service.

Whether SRNC identification supports that about the unit of being managed by RNC or contiguous RNC the information of MBMS function is to be included in the Iu signaling message, and the MBMS function that identifies can be supported/can not add adjacent unit information list (step S31) to by support information.Therefore, when particular terminal moves into the unit, if SRNC based on the MBMS function can support/can not the support information determining unit not support the MBMS function, then SRNC does not send about the MBMS connection request message of each MBMS service DRNC to administrative unit, does not provide each MBMS to serve to terminal or ptp services is provided.

Fig. 7 illustrates the process that SRNC wherein receives MBMS UE link message and adds the adjacent unit information list from CN.

As shown in Figure 7, SRNC receives MBMS UE link message (step S40) from CN.At this moment, MBMS UE link message comprise the MBMS service that adds about particular terminal the MBMS service region information and about the MBMS service function of the adjacent unit of each MBMS service can support/can not support information.

The MBMS service region information of SRNC identification adjacent unit and the MBMS function that is included in the adjacent unit in the message can support/can not support information, and add the service region information that identifies to adjacent unit information list (step S41).After this, when particular terminal moves into this unit, if determining this unit is not the MBMS coverage of MBMS service, SRNC does not send about the MBMS connection request message of the MBMS service DRNC to administrative unit, does not provide MBMS to serve to terminal or ptp services is provided.

In addition, SRNC the MBMS function of adjacent unit can be able to be supported/can not be added into the adjacent unit information list by support information.In this case, when discrete cell moves into the unit, if determining unit is not supported the MBMS function, SRNC does not send about the MBMS connection request message of each MBMS service DRNC to administrative unit, and provides each MBMS to serve to terminal or ptp services is provided.

Fig. 8 illustrates wherein, and SRNC receives the process that the MBMS session begins message and adds the adjacent unit information list from CN.

At first, SRNC begins message (step S50) from CN reception MBMS session.The MBMS session begins message and comprises the adjacent unit MBMS service region information of the MBMS service that has added about particular terminal and whether can support information about the MBMS service function of each MBMS service about adjacent unit.

Includedly in the MBMS service region information of SRNC identification adjacent unit and the message whether can support the information of MBMS function, and then the MBMS service region information is added into adjacent unit information list (step S51) about adjacent unit.After this, when particular terminal moves into the unit, if determining unit is not the MBMS coverage of MBMS service, then SRNC does not send about the MBMS connection request message of the MBMS service DRNC to administrative unit, and does not provide MBMS to serve to terminal or ptp services is provided.

In addition, SRNC can add about close on whether support the MBMS function in the unit message to closing on the unit information tabulation.Therefore, when particular terminal moves into the unit, if determining unit is not supported the MBMS function, SRNC does not send about the MBMS connection request message of each MBMS service DRNC to administrative unit, and does not provide each MBMS to serve to terminal or ptp services is provided.

Fig. 9 illustrates the process that SRNC wherein receives the MBMS connection response message and adds the adjacent unit information list from DRNC.

With reference to figure 9, when terminal moved into unit by DRNC management, SRNC perceived moving of terminal and sends MBMS connection request message about the MBMS service that just received by terminal to DRNC (step S60).DRNC sends the MBMS connection response message to SRNC (step S61) in response to MBMS connection request message.At this moment, the MBMS connection response message comprises the MBMS service region information of the unit that terminal moves into.

SRNC receives the MBMS connection response message from DRNC, checks the MBMS service region information of the unit that terminal moves, and the MBMS service region information of being checked is added into (step S62) in the adjacent unit information list.After this, when particular terminal moves into the unit, if the SRNC determining unit is not the MBMS coverage of MBMS service, then SRNC does not send about the MBMS connection request message of the MBMS service DRNC to administrative unit, does not provide MBMS to serve to terminal or ptp services is provided.

In addition, in the present invention, SRNC can receive about the MBMS service region information of each MBMS service of adjacent unit and whether can support the information of MBMS function about adjacent unit by using uplink signalling message transfer, Radio Link to set up message and Radio Link additional messages.

Figure 10 illustrates wherein, and SRNC receives the process that Radio Link is set up response message and added the adjacent unit information list from DRNC.

As shown in Figure 10, when terminal moved into unit by DRNC management, SRNC perceived moving of terminal and sends Radio Link and sets up request message and be used to terminal to set up Radio Link (step S70) to DRNC.DRNC transmission Radio Link is set up the Radio Link of request message and is set up response message to SRNC (step S71), and in this case, Radio Link set up response message comprise the unit that moves into about terminal each MBMS service the MBMS service region information and about whether supporting the information of MBMS function.

Therefore, SRNC receives the link establishment response message and checks the MBMS service region information of the unit that terminal moves from DRNC, and corresponding M BMS service region information is added into (step S72) in the adjacent unit information list.After this, when terminal moves into the unit, if the SRNC determining unit is not the MBMS coverage of specific MBMS service, SRNC does not send about the MBMS connection request message of the MBMS service DRNC to administrative unit, and does not provide MBMS to serve to terminal or ptp services is provided.

In addition, SRNC checks whether the unit that moves into about terminal supports the information of MBMS function, and it is added into the adjacent unit information list.In this case, when particular terminal moves into the unit, if the SRNC determining unit is not supported the MBMS function, it does not send about the MBMS connection request message of each MBMS service DRNC to administrative unit, and does not provide each MBMS to serve to terminal or ptp services is provided.

As mentioned above, in the present invention, in the time of in particular terminal moves into by the unit of DRNC management, the state ground that SRNC can pipe unit sends MBMS connection request message to DRNC, but only just sends MBMS connection request message in the time of necessity.

Just, SRNC receives the MBMS service region information of adjacent unit and about whether supporting the information of MBMS function from CN or from DRNC, store them, and then, if the unit that particular terminal moves into is not the MBMS coverage of specific MBMS service or does not support the MBMS function, SRNC does not send the DRNC of MBMS connection request message to administrative unit, does not provide MBMS to serve to terminal or ptp services is provided.

Therefore, when terminal when a RNC moves to another RNC, can reduce the unnecessary messages transmission between the RNC.Therefore, thus the offered load between the RNC increases and can improve the network service efficiency.

The foregoing description and advantage only are exemplary and are not interpreted as restriction of the present invention.The present invention can easily be applied to the equipment of other types.It is illustrative that description of the invention is intended to, and does not limit the scope of claim.Manyly substitute, modifications and changes are apparent to those skilled in the art.In the claims, method and function clause are intended to cover said for carrying out the structure of the function of describing, and are not only on the structure equivalent and are structure of equal value.

Claims

1. one kind is used for the method that sends service information between the network node of the wireless system that one or more mbms service MBMS are provided, wherein, when terminal when first network node moves to unit by second network node control, first network node is from the state information of the 3rd network node receiving element, wherein, the indication of this state information is about the MBMS service region information of the adjacent unit of the added MBMS service of terminal and about whether supporting the information of MBMS function, wherein, this state information is that the Iu interface signaling message by the 3rd network node sends, wherein, this Iu interface signaling message comprises the information of whether supporting the MBMS function about adjacent unit, wherein, the state information that this first network node receives from the 3rd network node is stored in the adjacent unit information list, and when this terminal moves into this unit, only when this unit is in the MBMS coverage or only when the MBMS function is supported in this unit, this first network node sends to second network node according to the state information of being stored with MBMS connection request message, wherein, the MBMS function support of this first network node adjacent unit or not support information add the adjacent unit information list to.

2. the method for claim 1, wherein, this first network node is the service wireless network controller SRNC of this terminal of management, and this second network node is the unsteady radio network controller DRNC of the unit that moves into of this terminal, and the 3rd network node is core network CN.

3. one kind is used for the method that sends service information between the network node of the wireless system that one or more mbms service MBMS are provided, wherein, when a terminal when first network node moves to unit by second network node control, second network node provides the state information of unit according to the request of first network node, wherein, this state information is to send by the response message of setting up request message about the Radio Link of first network node, wherein, the response message that this Radio Link is set up request message comprises the MBMS service region information of adjacent unit and about whether supporting the information of MBMS function, wherein, the state information that this first network node stores receives from second network node, so that when this terminal moves into this unit subsequently, only when this unit is in specific MBMS coverage or only when the MBMS function is supported in this unit, this first network node sends to second network node based on the state information of being stored with MBMS connection request message, wherein, this first network node MBMS service region information is added the adjacent unit information list to.

4. method as claimed in claim 3, wherein, this first network node is the service wireless network controller SRNC of this terminal of management, and this second network node is the unsteady radio network controller DRNC of the unit that moves into of this terminal.

5. one kind is used for the method that sends service information between the network node of the wireless system that one or more mbms service MBMS are provided, wherein, when terminal when first network node moves to the unit of second network node control, the state information that first network node receives and stores this unit from the 3rd network node, wherein, the indication of this state information is about the MBMS service region information of the adjacent unit of the added MBMS service of terminal and about whether supporting the information of MBMS function, wherein, this this state information of first network node is stored in the adjacent unit information list, wherein, after this terminal moves into this unit, only when this unit is in the MBMS coverage or only when the MBMS function is supported in this unit, this first network node sends to second network node according to the state information of being stored with MBMS connection request message, wherein, this state information is that the MBMS session by the 3rd network node begins message and sends, wherein, this MBMS session begins that message comprises the MBMS service region information of adjacent unit and about whether supporting the information of MBMS function, wherein, this first network node MBMS service region information is added the adjacent unit information list to.

6. method as claimed in claim 5, wherein, this first network node is the service wireless network controller SRNC of this terminal of management, and this second network node is the unsteady radio network controller DRNC of the unit that moves into of this terminal, and the 3rd network node is core network CN.