CN101136814B - Method and device for supporting MBMS service - Google Patents
Method and device for supporting MBMS service Download PDFInfo
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- CN101136814B CN101136814B CN2006101126394A CN200610112639A CN101136814B CN 101136814 B CN101136814 B CN 101136814B CN 2006101126394 A CN2006101126394 A CN 2006101126394A CN 200610112639 A CN200610112639 A CN 200610112639A CN 101136814 B CN101136814 B CN 101136814B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/30—Resource management for broadcast services
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- H04W28/00—Network traffic management; Network resource management
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Abstract
The method includes steps: through a signaling control channel (SCC) to provide basic information of obtained operation to UE; receiving capability information from UE to affirm MBMS operations are supported; receiving an operational request based on the said basic information from UE; based on the said capability information and operational request to assist UE and MBMS operational node to build operation load; receiving request for adjusting mode of operation load from UE transferred through SCC; based on the request for adjusting mode of operation load to inform MBMS operational node to adjust mode of operation load for transferring MBMS operation data. Based on current state of UE, the disclosed communication method and device can adjust mode of operation load in time so as to provide better mobile application service for mobile users.
Description
Technical field
The present invention relates to a kind of communication means and device, relate in particular to a kind of communication means and device of the MBMS of support business.
Technical background
Universal day by day along with the fast development of mobile communication technology and mobile communications network, people no longer have been satisfied with simple receiving calls and simple messaging service to the demand of mobile communication.(Internet) goes up flourish multimedia service in the Internet for some, and for example: video request program, television broadcasting, video conference, online education and interactive game etc. are becoming mobile subscriber's expectation.
For the development that adapts to mobile multi-media service with effectively utilize mobile network resource, global standardsization organize 3GPP (3G (Third Generation) Moblie cooperative programme) to propose BroadCast MultiCast Service MBMS (MBMS:Multimedia Broadcast/Multicast Service).The MBMS technology is meant a data source, by a transmission link of sharing, sends the point-to-multipoint service of data to a plurality of users.
With WCDMA (Wideband Code Division Multiple Access (WCDMA)) network is example, in order to realize MBMS, need to existing SGSN in the WCDMA network (Serving GPRS Support Node: Serving GPRS Support Node), GGSN (Gateway GPRS Support Node: Gateway GPRS Support Node), RNC (radio network controller: Radio Network Controller) and UE User Equipment) etc. (user terminal: the node of packet domain increases the MBMS function, also need to increase a MBMS service node simultaneously, that is: broadcasting and multicast service center BM-SC.The simplified model of MBMS architecture as shown in Figure 1.
In Fig. 1, Gmb, Gi reference point are the interface between BM-SC and the GGSN, and wherein, the Gmb interface provides the chain of command function, and the Gi interface provides user plane functions.As newly-increased node, BM-SC is the inlet of MBMS service supplier, is used for authorizing and initiating business.
For the node that has existed in the WCDMA network, the MBMS correlation function that needs to increase comprises:
(1) UE supports to activate and cancel the MBMS business, supports the professional and non-MBMS business of parallel processing MBMS.
(2) UTRAN (the universal mobile telecommunications system grounding wireless access network comprises RNC and Node B node) according to the UE number and the available radio resources of subscribing MBMS business in the current area, selects suitable service bearing mode.This service bearing mode comprise PTP (point-to-point: Point-to-Point) and PTM (put multiple spot: Point-to-Multipoint) two kinds of patterns.Wherein, under the PTP service bearing mode, via special-purpose physical down Channel Transmission MBMS business, and under the PTM service bearing mode, via inferior Common Control Physical Channel MBMS transmission business.UTRAN supports core net to initiate and stop the transmission of MBMS business, supports to receive UE the moving between RNC of MBMS business, supports professional other the parallel business of transmission and MBMS simultaneously.
(3) SGSN carries out network control to the UE that receives the MBMS business, and the MBMS business is sent to UTRAN, finishes the billing function of MBMS business.
(4) GGSN according to the notice of BM-SC, is the professional carrying of setting up or discharging user's face and chain of command of MBMS.
Except that UTRAN, as shown in Figure 1, be in a UE among the mobile network, also can pass through Radio Access Network GERAN (GSM EDGE Radio Access Network network, EDGE: improve data transfer rate GSM service), receive the data of MBMS business.
The MBMS business has broadcasting and two kinds of mode of operations of multicast.Broadcast mode be meant multi-medium data from a service source by unidirectional all UE that send in the broadcast service zone, the UE under this pattern need not the registration can receive broadcast data; Multicast pattern and broadcast mode are similar, but but the UE of receiving multicast data is only limited to registered UE, when the UE number that receives multi-case data in the sub-district is very few, can selects to send multi-case data, thereby reduce interference other Radio Links with the service bearing mode of PTP.
Below, in conjunction with the accompanying drawings 2, briefly be described in the packet network based on WCDMA, realize the process of MBMS business.
● registration phase (broadcast mode does not need): between UE and MBMS service supplier, set up contact (step S10).After registration was finished, UE can receive multi-case data, the MBMS service charging of MBMS service supplier to providing.
● the service statement stage: the MBMS service source provides the essential information (step S20) of the MBMS business that is about to transmission to UE.
● UE adds the stage (broadcast mode does not need): based on the business information that the service statement stage provides, UE becomes the multicast group membership (step S30) of a MBMS business.Because after adding the multicast group, UE need pay for the MBMS that receives is professional, therefore, in this stage, also will carry out carrying out the operation of authentication between UE and the MBMS service supplier.
● session incipient stage: UTRAN is a MBMS traffic assignments resource, sets up service bearer, and BM-SC prepares MBMS transmission business (step S40).
● the MBMS notification phase: notice UE carries out the preparation (step S50) that receives the MBMS business.
● data transfer phase: the data of MBMS business are sent to UE.Under the multicast pattern, the data of this MBMS business are (the step S60) that encrypts.
● the conversation end stage: when the end of transmission of MBMS business datum, be released to the resource (step S70) that the MBMS transmission business is distributed.
● UE leaves the registration of stage (broadcast mode does not need): UE cancellation multicast service, no longer receives this multicast service (step S80).
Implementation procedure from above-mentioned MBMS business, can see: set up in the session incipient stage owing to be used for the carrying of transferring MBMS service data, therefore, in MBMS business data transmission process, be difficult to current state, in time adjust service bearing mode according to UE.
For example: in the time of beyond a UE who receives the MBMS business datum moves to the MBMS service coverage area, even this moment, UE was in the state that can not receive the MBMS business datum, but, owing to do not receive conversation end message from UE, BM-SC is still at transferring MBMS service data, and the user still will pay corresponding service fee for this reason.
Again for example: the service quality (QoS) that improves the MBMS business of transmitting when a UE expectation that receives the MBMS business datum, or its service of enjoying when user expectation (as: mobile TV or mobile phone meeting) not essential factor its leave the MBMS service coverage area and when interrupting, in existing MBMS architecture, usually because can not in time adjust service bearing mode, and make mobile service that the user experienced shortcoming slightly unavoidably.
Summary of the invention
The communication means and being used to that the purpose of this invention is to provide a kind of MBMS of support business is implemented the device according to the inventive method, it can be according to the current state of UE, in time adjust service bearing mode, thereby provide more perfect mobile application service for the mobile subscriber.
Purpose of the present invention is realized by following technical scheme: a kind of communication means of supporting the MBMS business in the IMS system comprises step:
(a), provide the essential information of the business of can obtaining to a UE via a signaling control channel;
(b) reception is from the ability information of this UE, and to confirm to support the MBMS business, wherein, this ability information represents that this UE possesses via the described ability that obtains business of MBMS pattern reception;
(c) reception is from the service request based on described essential information transmission of this UE;
(d), assist described UE and a MBMS service node to set up service bearer, so that described MBMS service node can transmit the data of described business via described service bearer to described UE according to described ability information and described service request;
(e) receive request from the adjustment service bearing mode of described UE via described signaling control channel transmission;
(f), notify described MBMS service node to adjust the service bearing mode of described transferring MBMS service data according to the request of described adjustment service bearing mode.
In step (a), can provide described essential information to described UE by any one mode in broadcast mode, PUSH mechanism and the URL pattern.
Described essential information comprises at least: the described media information that obtains business.
Described step (d) comprising:
According to described service request, will be used for the professional information transmitted of MBMS and be transferred to described MBMS service node;
Reception is used for the professional transmission parameters of MBMS accordingly from described MBMS service node;
Via described signaling control channel, this parameter is transferred to described UE, so that described UE sets up service bearer according to described parameter and described MBMS service node.
The professional information transmitted of the described MBMS of being used for comprises the configuration information of described media information and described UE at least.
The professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information.
Step (f) comprising: according to the request of described adjustment service bearing mode, notify described MBMS service node to stop the data of MBMS transmission business.
Step (f) comprising: according to the request of described adjustment service bearing mode, notify described MBMS service node to change described service bearing mode, so that described UE receives the data of described MBMS business via the service bearer after changing.
Described service bearing mode comprises: ptp mode and PTM pattern.
A kind of communication means of being carried out by a UE of supporting the MBMS business in the IMS system comprises step:
(a), receive essential information from the obtained business of an application server via a signaling control channel;
(b) according to described essential information, can detection receive described obtainable business via the MBMS pattern;
(c) if can receive described obtainable business via the MBMS pattern, then send an ability information to described application server, receive the described professional ability that obtains to represent that this UE possesses via the MBMS pattern;
(d), send a service request to described application server based on described essential information;
(e) receive from described application server be used for the professional transmission parameters of MBMS, setting up service bearer, thereby receive business datum from the transmission of MBMS service node via this service bearer with a MBMS service node;
(f), send a request of adjusting service bearing mode to described application server via described signaling control channel.
Step (b) comprising: according to the configuration information of described UE, judge that can described UE receive described obtainable business via the MBMS pattern.
Described essential information comprises the described professional media information that obtains at least; Can described step (b) also comprises: according to the configuration information of described UE, determine whether described UE possesses the ability of parallel processing business, receive described media information concurrently via the MBMS pattern to judge described UE.
The professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information, and step (e) comprising:
According to described parameter, add the multicast of described MBMS service node;
According to the access network assigned radio resource, set up service bearer with described MBMS service node;
Via described service bearer, receive MBMS business datum from the transmission of MBMS service node.
Step (f) comprising: when described UE leaves the MBMS service coverage area, via described signaling control channel, send the request of described adjustment service bearing mode to described application server.
Step (f) comprising: when the service quality of MBMS business is adjusted in described UE expectation, via described signaling control channel, send the request of described adjustment service bearing mode to described application server.
Step (f) comprising: when described UE expectation receives different media resource information, send the request of described adjustment service bearing mode to described application server.
Described media resource information comprises at least: backstage business and streaming media service.
Described service bearing mode comprises: ptp mode and PTM pattern.
Described access network is any one among WLAN, GPRS, WCDMA, TD-SCDMA and the CDMA2000.
A kind of communication means of supporting the MBMS business in the IMS system comprises step:
(a) receive and to be used for the professional information transmitted of MBMS from an application server;
(b) be used for the professional information transmitted of MBMS according to this, provide to described application server to be used for the professional transmission parameters of MBMS accordingly;
(c) utilize this parameter, set up the service bearer that is used for the MBMS business with UE, with via described service bearer to described UE service data transmission, wherein said UE obtains this parameter by described application server;
(d) reception is from the notice of the service bearing mode of the described transferring MBMS service data of adjustment of described application server;
(e), adjust described service bearer according to this notice.
The professional information transmitted of the described MBMS of being used for comprises the configuration information of described media information and described UE at least.
The professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information.
Step (c) comprising:
According to described parameter, allow described UE to add the multicast of described MBMS business;
According to the access network assigned radio resource, set up described service bearer with described UE;
Via described service bearer, to the data of described UE MBMS transmission business.
Described access network is any one among WLAN, GPRS, WCDMA, TD-SCDMA and the CDMA2000.
Step (e) comprising: according to described notice, stop the data of MBMS transmission business.
Step (e) comprising: according to described notice, change described service bearing mode, and transmit the data of described MBMS business via the service bearer after changing.
Described service bearing mode comprises: ptp mode and PTM pattern.
A kind of communicator that is used for supporting in the IMS system MBMS business comprises:
MBMS initiation of services module, it comprises:
Via a signaling control channel, provide the module that can obtain professional essential information to a UE;
Reception is from the ability information of this UE, and to confirm to support the module of MBMS business, wherein, this ability information represents that this UE possesses via the described ability that obtains business of MBMS pattern reception;
MBMS operation assistance module, it comprises:
Reception is from the module of the service request that sends based on described essential information of this UE;
According to described ability information and described service request, assist described UE and MBMS service node to set up the module of service bearer, so that described MBMS service node can transmit the data of described business via described service bearer to described UE;
Reception is via the module from the request of the adjustment service bearing mode of described UE of described signaling control channel transmission;
According to the request of described adjustment service bearing mode, notify described MBMS service node to adjust the module of the service bearing mode of described transferring MBMS service data.
Described essential information comprises at least: the described media information that obtains business, and described assistance UE and MBMS service node are set up the module of service bearer, comprising:
According to described service request, will be used for the module that the professional information transmitted of MBMS is transferred to described MBMS service node;
Reception is from the module that is used for the professional transmission parameters of MBMS accordingly of described MBMS service node;
Via described signaling control channel, this parameter is transferred to the module of described UE, so that described UE sets up service bearer according to described parameter and described MBMS service node.
The professional information transmitted of the described MBMS of being used for comprises the configuration information of described media information and described UE at least; The professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information.
Notify described MBMS service node to adjust the module of the service bearing mode of described transferring MBMS service data, can notify described MBMS service node to stop the data of MBMS transmission business according to the request of described adjustment service bearing mode; And/or, can notify described MBMS service node to change described service bearing mode according to the request of described adjustment service bearing mode, so that described UE receives the data of described MBMS business via the service bearer after changing.
A kind of user terminal is used for carrying out the communication means of supporting the MBMS business in the IMS system, and this user terminal comprises:
The ability information Switching Module, it comprises:
Be used for via a signaling control channel, reception is from the module of the essential information of the obtained business of an application server; With
According to described essential information, can detection receive the module of described obtainable business via the MBMS pattern;
And, then send the module of an ability information to described application server if can receive described obtainable business via the MBMS pattern, receive the described professional ability that obtains to represent that this UE possesses via the MBMS pattern;
The MBMS business execution module, it comprises:
Be used for based on described essential information, send the module of a service request to described application server; With
Be used to receive from described application server be used for the professional transmission parameters of MBMS, setting up service bearer, thereby receive business datum from the transmission of MBMS service node via this service bearer with a MBMS service node;
Adjust the service bearer request module, be used for, send a request of adjusting service bearing mode to described application server via described signaling control channel.
Can detection receive the module of described obtainable business via the MBMS pattern, comprising: according to the configuration information of described UE, judge that can described UE receive the module of described obtainable business via the MBMS pattern; And/or, according to the configuration information of described UE, determine whether described UE possesses the ability of parallel processing business, can receive the module of the media information of related the obtained business of described essential information via the MBMS pattern concurrently to judge described UE.
The professional transmission parameters of the described MBMS of being used for comprises at least: is used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information, and described MBMS business execution module, further comprise:
According to described parameter, add the module of described MBMS service node multicast;
According to the access network assigned radio resource, set up the module of service bearer with described MBMS service node;
Via described service bearer, receive module from the MBMS business datum of MBMS service node transmission.
When described UE leaves the MBMS service coverage area, or when the service quality of MBMS business is adjusted in described UE expectation, or when described UE expectation receives different media resource information, described adjustment service bearer request module, via described signaling control channel, send the request of described adjustment service bearing mode to described application server.
A kind of communicator that is used for supporting in the IMS system MBMS business comprises:
MBMS business support module, it comprises:
Be used to receive the module that is used for the professional information transmitted of MBMS from an application server;
Be used for the professional information transmitted of MBMS according to this, the module that is used for the professional transmission parameters of MBMS accordingly is provided to described application server;
The professional transport module of MBMS, it comprises:
Utilize this parameter, set up the module of the service bearer be used for the MBMS business with a UE (user terminal), with via described service bearer to described UE service data transmission, wherein said UE obtains this parameter by described application server;
The service bearer adjusting module, it comprises:
Be used to receive module from the notice of the service bearing mode of the described transferring MBMS service data of adjustment of described application server;
According to this notice, adjust the module of described service bearer.
The professional information transmitted of the described MBMS of being used for comprises the configuration information of described media information and described UE at least; The professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information.
Set up the module of the service bearer be used for the MBMS business with UE, comprising:
According to described parameter, allow described UE to add the module of the multicast of described MBMS business;
According to the access network assigned radio resource, set up the module of described service bearer with described UE;
Via described service bearer, to the module of the data of described UE MBMS transmission business.
Adjust the module of described service bearer, comprising:, stop the module of the data of MBMS transmission business according to described notice; And/or, according to described notice, change described service bearing mode, and transmit the module of the data of described MBMS business via the service bearer after changing.
Description of drawings
Hereinafter with reference to accompanying drawing, describe the present invention in detail by embodiment, wherein:
Fig. 1 is the schematic diagram of conventional MBMS architecture;
Fig. 2 is the schematic diagram of conventional MBMS service implementation process;
Fig. 3 is the schematic diagram that the MBMS architecture is combined with the IMS system according to one embodiment of the present of invention;
Fig. 4 is based on the schematic diagram of the MBMS system of WCDMA network in conjunction with the IMS system;
Fig. 5 is the flow chart according to the communication means of the support MBMS business of one embodiment of the present of invention;
Fig. 6 is a schematic diagram of carrying out the communication system of method shown in Figure 5.
In institute's drawings attached, identical label is represented similar or corresponding feature or function.
Embodiment
In the communication means of support MBMS business proposed by the invention, utilized IMS system (IP Multimedia System: IP Multimedia Subsystem) based on SIP (Session initiation Protocol: Session InitiationProtocol) agreement and the characteristic that is independent of access and bearing technology, in the professional transmission course of MBMS, by the signaling key-course of IMS system, the message that UE will adjust service bearing mode sends to the application server AS of IMS; And be transmitted to BM-SC via IMS AS, thus make and just in time adjust its bearing mode at the BM-SC of MBMS transmission business, to satisfy user's needs.
Accompanying drawing 3 is depicted as the schematic diagram of introducing the IMS subsystem in the MBMS architecture.Compare with conventional MBMS architecture shown in Figure 2, in Fig. 3, be arranged in a user terminal of cordless communication network, for example: mobile phone, the bearing bed of the IMS that forms via access network GERAN, by SGSN and GGSN and by CSCF (CSCF: Call Session Control Function) and HSS (home subscriber server: Home Subscriber Server) etc. the signaling key-course of the IMS that forms, set up signaling link with IMS AS.Wherein, constitute the SGSN and the GGSN of IMS bearing bed, can reuse SGSN and GGSN in the MBMS architecture by relevant configuration.IMS AS self or third party pass through IMS AS can provide MBMS business such as mobile TV or mobile meeting.The BM-SC that is arranged in the MBMS architecture not only can receive the control messages from IMS AS, and the data of the MBMS business that IMS AS can be provided are transferred to user terminal via the communication network (GGSN, SGSN) and the access network GERAN/UUTRAN of packet domain.
In accompanying drawing 4, schematically illustrated be between each UE in the cordless communication network and the IMS AS set up signaling link, based on the MBMS system of WCDMA network and the correlation between the IMS system.
Hereinafter, will be in conjunction with the accompanying drawings 5, be example with the WCDMA network as access network, describe communication means in detail according to the support MBMS business in the IMS system of the present invention.Because the bearing layer equipment in the MBMS system can be reused by the IMS system, in order more clearly to describe user terminal is used for the bearing mode of MBMS transmission business by IMS AS notice BM-SC and then adjustment process, in accompanying drawing 5, signal transmission relation between user terminal UE, broadcasting and multicast service center BM-SC and the IMS application server IMS AS only is shown, and omitted the CSCF that plays the route effect between IMS AS and the UE, and omitted and between UE and BM-SC, set up radio bearer and network entities such as MBMS transmission professional needed RAN, SGSN and GGSN.
As shown in Figure 5, at first, user terminal UE sets up signaling link (step S100) via the bearing bed and the signaling key-course of IMS system with IMS AS.After having set up this signaling link, UE sends message by signaling control channel to IMS AS.In setting up the process of this signaling link, by the home subscriber server HSS stored user information in the IMS system, IMS AS can carry out the identity testimony of a witness to UE.
When this UE moves to the MBMS service coverage area (step S110), if viewing the user of this UE, IMS AS customized the MBMS business in advance, then IMS AS provides the essential information (step S120) of the business of can obtaining via signaling control channel to this UE.Wherein, any one mode that IMS AS can pass through in broadcast mode, PUSH mechanism (for example: WAP (wireless application protocol) WAP, short message service SMS and multimedia messaging service, MMS MMS) and URL (uniform resource locator, for example: HTML (Hypertext Markup Language) HTTP, the file transfer protocol (FTP) FTP) pattern provides this essential information to described UE.This essential information should comprise at least can obtain professional media information.This media information relates to: can obtain professional concrete application, for example: weather forecast, advertisement, news broadcast, I sports program and Video Music can wait; Can obtain professional medium type, for example: text, audio frequency, video and chart etc.
According to this essential information that receives, based on the configuration information of this UE, can UE detects it receive the data that this can obtain business via the MBMS pattern.Wherein, the configuration information of UE comprises: whether this UE possesses the ability that receives this business datum via the MBMS pattern, that is: whether this UE possesses the ability that activates and cancel the MBMS business; And whether this UE possesses the ability of parallel processing MBMS business and non-MBMS business.For example: the UE that has is merely able to receive concurrently the MBMS business datum of textual form when receiving calls.
Receive the ability that this can obtain business if this UE possesses via the MBMS pattern, then UE sends an ability information to IMS AS, can receive this via the MBMS pattern and can obtain professional data (step S130) to represent it.In this ability information, UE is the service quality of the MBMS business of its expectation of indication further.
After the ability information of receiving from this UE, IMS AS judges whether it can be as requested, and for example: the service quality of UE expectation provides MBMS business to this UE.In this stage, IMS AS can exchange the ability (step S140) of carrying out the professional transmission of MBMS with UE.
After UE and IMS AS confirm to support the professional transmission of MBMS mutually, obtain professional essential information according to above-mentioned, UE sends a service request (step S150) to IMS AS.This service request comprises user-selected media information and the configuration information of UE.In addition, this service request can also comprise when it leaves the MBMS service coverage area whether this UE expects to switch to the PTP service bearing mode and continue to receive this business datum.
After receiving this service request, at selected media information, IMS AS and UE consult to be used for the code/decode format (step S160) that adopts when transferring MBMS service data.In addition, IMS AS is used for the professional information transmitted of MBMS with the configuration information of selected media information and UE etc. and sends BM-SC (step S170) to.Here, how connecting between IMS AS and BM-SC, is not content of the present invention.IMS AS can connect with BM-SC in several ways, and for example: if the network address of BM-SC is to adopt the IP address, then IMS AS can connect by DNS (name server) and this BM-SC.
Receive be used for the professional information transmitted of MBMS after, according to user configuration information wherein, BM-SC is that UE distributes a MBMS service identification (ID) that is used to transmit this MBMS business; According to selected media information, BM-SC determines that it is used to transmit the port numbers and the multicast address of the employed transport layer of this media information.Then, BM-SC offers ISM AS (step S180) with information such as this port numbers and MBMS service identifications as being used for the professional transmission parameters of MBMS.
After the parameter of receiving from BM-SC, ISM AS sends this parameter to UE (step S190) via signaling control channel.
Utilize this parameter, can set up the service bearer between UE and the BM-SC, thereby via this service bearer, UE receives the MBMS business datum (step S200) from BM-SC.Process of transferring MBMS service data comprises by setting up service bearer for this:
At first, according to the MBMS service identification in the above-mentioned parameter, UE adds the professional multicast group of corresponding M BMS.Because set up the signaling link stage and UE has been carried out the identity testimony of a witness in above-mentioned steps S 100, therefore, in this adding stage, UE can use this identity authentication result, successfully add the professional multicast group of MBMS.
Become a member of the professional multicast group of MBMS at UE after, RNC is for carrying out each functional entity distributing radio resource of MBMS business, thereby sets up service bearer for UE and BM-SC.Wherein, RNC can determine service bearing mode according to the number of members and the current available radio resources situation of this multicast group, also can be according to the specific (special) requirements of UE and preferred a certain service bearing mode.
After setting up service bearer between UE and the BM-SC, from the multimedia messages of IMS AS, just can adopt the code/decode format of negotiation, with the MBMS pattern, be transferred to this UE by BM-SC.
Because in the professional transmission course of MBMS, between UE and IMS AS, remaining signaling control channel, therefore, when UE expected change service bearing mode, the request of the adjustment service bearing mode of its transmission can be transferred to IMS AS (step S210) via this signaling control channel.After receiving this request, IMS AS can in time notify BM-SC to adjust its service bearing mode (step S220).Then, BM-SC can correspondingly adjust (step S220) to its service bearing mode according to the notice from IMS AS.
Particularly, if UE desires to leave the MBMS service coverage area, then in step S210, UE sends a request to IMAAS, stops to its transferring MBMS service data with request.After receiving this request, in step S220, IMS AS notice BM-SC stops to transmit this MBMS business datum.After receiving this notice, in step S230, BM-SC stops transferring MBMS service data when stopping to charge.
After if UE is desirably in and leaves the MBMS service coverage area, change into and adopt the PTP service bearing mode to continue to receive this business datum, then in step S210, UE can send a request of adjusting service bearing mode to IMA AS, switches to the PTP service bearing mode with request.After receiving this request, in step S220, IMS AS notice BM-SC service switchover bearing mode.Then, in step S230, BM-SC switches to the PTP service bearing mode according to this notice, and via the service bearer service data transmission after changing.
In addition, if in the service request that UE sends in above-mentioned steps S150, the UE indication can automatically switch to the PTP service bearing mode and continue service data transmission when it leaves the MBMS service coverage area, then after UE leaves the MBMS service coverage area, IMS AS also can indicate BM-SC to switch to the PTP service bearing mode automatically, so that BM-SC adopts the PTP service bearing mode to continue to the UE service data transmission.
In like manner, when receiving expectation in the process of MBMS business datum, UE adjusts the service matter of MBMS business when, for example: the video pictures that user expectation is seen is more clear, and then UE also can pass through signaling control channel, sends a request of adjusting service bearing mode to IMS AS.After receiving this request, IMS AS will notify BM-SC service switchover bearing mode.BM-SC will notify according to this, and the requirement of the service quality that proposes according to the user is with the service bearer service data transmission after switching.
In addition, in the process that receives the MBMS business datum, the user can also revise the media resource information that desire receives via this signaling control channel.For example, UE receives the backstage business (background) of downloading class with the MBMS pattern.If the user expects to receive the streaming media service of playing while downloading (Streaming) with the MBMS pattern at this moment, then UE can pass through signaling control channel, send a request of adjusting service bearing mode to IMS AS, so that IMS AS notice BM-SC service switchover bearing mode; Then, BM-SC switched to the corresponding service carrying according to the notice of IMS AS after, this UE just can receive the Streaming Media MBMS business datum of BM-SC transmission via the service bearer of this switching.
The above-mentioned communication means of 5 described support MBMS business in conjunction with the accompanying drawings of the present invention can adopt software mode to realize, can also adopt hardware mode to realize, can also adopt way of hardware and software combination to realize.
Figure 6 shows that system schematic according to the MBMS business that in an IMS system, realizes of one embodiment of the present of invention.In this system, the composition of UE, BM-SC and IMS AS is distinguished as shown in FIG., and wherein, parts or the module identical with IMS AS with conventional UE, BM-SC do not illustrate in the drawings.
As shown in Figure 6, wherein, UE comprises three modules, carries out the corresponding steps in the communication means of above-mentioned support MBMS business respectively.Concrete: can ability information Switching Module 10 can be used for exchanging the ability information (for example: above-mentioned steps S130 and step S140) that support the MBMS business with IMS AS; MBMS business execution module 12, the data (for example: above-mentioned steps S150, step S160 and step S200) that can be used for setting up service bearer and receive the MBMS business by the service bearer of setting up; Adjust service bearer request module 15, can be used for according to user's current state via signaling control channel to IMS AS send adjust service bearing mode request (for example: above-mentioned steps S210).
IMS AS comprises two modules, and wherein, can MBMS initiation of services module 20 can be used for the essential information of the business of can obtaining being provided and exchanging the ability information (for example: above-mentioned steps S120 and step S160) that support the MBMS business with UE to UE; MBMS operation assistance module 22, can be used for assisting UE and BM-SC to set up service bearer, so that BM-SC can be via the data of the service bearer of setting up to UE MBMS transmission business, and response notifies BM-SC to adjust the bearing mode (for example: above-mentioned steps S170, step S190 and step S220) that is used for the MBMS transmission business from the request of the adjustment service bearing mode of UE then.
BM-SC comprises three modules, wherein, MBMS business support module 30, can be used for according to receive from IMS AS be used for the professional information transmitted of MBMS, (for example: above-mentioned steps S180) be provided for the professional transmission parameters of MBMS to IMS AS; The professional transport module 32 of MBMS (for example: above-mentioned steps S200) can be used for setting up service bearer and the data by the service bearer MBMS transmission business set up; Service bearer adjusting module 35 can be used for (for example: above-mentioned steps S220) correspondingly adjusting service bearing mode according to the notice from IMS AS.
As mentioned above, in the communication means and device of support MBMS business provided by the invention, in the professional transmission course of MBMS, owing to can reuse the control signaling link in the IMS system, to be transmitted to BM-SC by IMS AS from the request of user's adjustment service bearing mode, therefore, according to this method, in the communication system of this method of execution, can be according to user's current state (for example: whether leave the MBMS service coverage area and whether need to improve professional service quality), in time adjust the bearing mode of MBMS transmission business, thereby, be in the user among the mobile network, when experiencing colourful multimedia service, also can enjoy perfect network service.
In addition, because UE when adding the professional multicast group of MBMS, can share the result that itself and IMS AS system carry out authentication, therefore, in communication system of the present invention, can avoid using the loaded down with trivial details of a plurality of safe keys.
In addition, because the IMS system adopts Session Initiation Protocol, this makes that the service provider of each multimedia application can be based on a standardized business platform, for the mobile subscriber provides more more attractive IP mobile services.
And because the IMS system is irrelevant with access, this makes the MBMS business to be transferred to the mobile subscriber via various access networks.These Radio Access Networks include but not limited to: WLAN (WLAN (wireless local area network)), GPRS, WCDMA, TD-SCDMA (time division SCDMA).This access network even can select CDMA2000, broadcast multi-broadcasting mechanism and the mode of operation of its broadcast multi-broadcasting technology BCMCS (Broadcast and Multicast Service) are similar to MBMS.
It will be appreciated by those skilled in the art that the communication means of the disclosed support of the invention described above MBMS business and the communication system of carrying out this method, can also on the basis that does not break away from content of the present invention, make various improvement.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (36)
1. communication means of supporting the MBMS business in the IMS system comprises and adopts IMS AS to carry out the operation of the following step:
(a), provide the essential information of the business of can obtaining to a UE via a signaling control channel;
(b) reception is from the ability information of this UE, and to confirm to support the MBMS business, wherein, this ability information represents that this UE possesses via the described ability that obtains business of MBMS pattern reception;
(c) reception is from the service request based on described essential information transmission of this UE;
(d) according to described ability information and described service request, assist described UE and a MBMS service node to set up service bearer, so that described MBMS service node can transmit the data of described business to described UE via described service bearer,
Described step (d) comprising:
According to described service request, will be used for the professional information transmitted of MBMS and be transferred to described MBMS service node;
Reception is used for the professional transmission parameters of MBMS accordingly from described MBMS service node;
Via described signaling control channel, this parameter is transferred to described UE, so that described UE sets up service bearer according to described parameter and described MBMS service node;
(e) receive request from the adjustment service bearing mode of described UE via described signaling control channel transmission;
(f), notify described MBMS service node to adjust the bearing mode of described MBMS business according to the request of described adjustment service bearing mode.
2. communication means as claimed in claim 1 wherein, in step (a), provides described essential information by any one mode in broadcast mode, PUSH mechanism and the URL pattern to described UE.
3. communication means as claimed in claim 1, wherein, described essential information comprises at least: the described media information that obtains business.
4. communication means as claimed in claim 3, wherein, the professional information transmitted of the described MBMS of being used for comprises the configuration information of described media information and described UE at least.
5. as claim 3 or 4 described communication meanss, wherein, the professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information.
6. communication means as claimed in claim 1, wherein, step (f) comprising:
According to the request of described adjustment service bearing mode, notify described MBMS service node to stop the data of MBMS transmission business.
7. communication means as claimed in claim 1, wherein, step (f) comprising:
According to the request of described adjustment service bearing mode, notify described MBMS service node to change described service bearing mode, so that described UE receives the data of described MBMS business via the service bearer after changing.
8. communication means as claimed in claim 1, wherein, described service bearing mode comprises: ptp mode and PTM pattern.
9. communication means of supporting the MBMS business in the IMS system of being carried out by UE comprises step:
(a), receive essential information from the obtained business of an application server via a signaling control channel;
(b) according to described essential information, can detection receive described obtainable business via the MBMS pattern;
(c) if can receive described obtainable business via the MBMS pattern, then send an ability information to described application server, receive the described professional ability that obtains to represent that this UE possesses via the MBMS pattern;
(d), send a service request to described application server based on described essential information;
(e) receive from described application server be used for the professional transmission parameters of MBMS, setting up service bearer, thereby receive business datum from the transmission of MBMS service node via this service bearer with a MBMS service node;
(f), send a request of adjusting service bearing mode to described application server via described signaling control channel.
10. communication means as claimed in claim 9, wherein, step (b) comprising:
According to the configuration information of described UE, judge that can described UE receive described obtainable business via the MBMS pattern.
11. communication means as claimed in claim 9, wherein, described essential information comprises the described professional media information that obtains at least; Described step (b) also comprises:
According to the configuration information of described UE, determine whether described UE possesses the ability of parallel processing business, can receive described media information concurrently via the MBMS pattern to judge described UE.
12. communication means as claimed in claim 11, wherein, the professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information, and step (e) comprising:
According to described parameter, add the multicast of described MBMS service node;
According to the access network assigned radio resource, set up service bearer with described MBMS service node;
Via described service bearer, receive MBMS business datum from the transmission of MBMS service node.
13. communication means as claimed in claim 9, wherein, step (f) comprising:
When described UE leaves the MBMS service coverage area,, send the request of described adjustment service bearing mode to described application server via described signaling control channel.
14. communication means as claimed in claim 9, wherein, step (f) comprising:
When the service quality of MBMS business is adjusted in described UE expectation,, send the request of described adjustment service bearing mode to described application server via described signaling control channel.
15. communication means as claimed in claim 9, wherein, step (f) comprising:
When described UE expectation receives different media resource information, send the request of described adjustment service bearing mode to described application server.
16. communication means as claimed in claim 15, wherein, described media resource information comprises at least: backstage business and streaming media service.
17. communication means as claimed in claim 9, wherein, described service bearing mode comprises: ptp mode and PTM pattern.
18. communication means as claimed in claim 12, wherein, described access network is any one among WLAN, GPRS, WCDMA, TD-SCDMA and the CDMA2000.
19. a communication means of supporting the MBMS business in the IMS system comprises and adopts the MBMS service node to carry out the operation of the following step:
(a) receive and to be used for the professional information transmitted of MBMS from an application server;
(b) be used for the professional information transmitted of MBMS according to this, provide to described application server to be used for the professional transmission parameters of MBMS accordingly;
(c) utilize this parameter, set up the service bearer that is used for the MBMS business with UE, with via described service bearer to described UE service data transmission, wherein said UE obtains this parameter by described application server;
(d) reception is from the notice of the bearing mode of the described MBMS business of the adjustment of described application server;
(e), adjust described service bearer according to this notice.
20. communication means as claimed in claim 19, wherein, the professional information transmitted of the described MBMS of being used for comprises the configuration information of media information and described UE at least.
21. communication means as claimed in claim 20, wherein, the professional transmission parameters of the described MBMS of being used for comprises at least: be used to transmit the information of described media information and be used to make described UE to become described MBMS service node multicast group membership's information.
22. communication means as claimed in claim 19, wherein, step (c) comprising:
According to described parameter, allow described UE to add the multicast of described MBMS business;
According to the access network assigned radio resource, set up described service bearer with described UE;
Via described service bearer, to the data of described UE MBMS transmission business.
23. communication means as claimed in claim 22, wherein, described access network is any one among WLAN, GPRS, WCDMA, TD-SCDMA and the CDMA2000.
24. communication means as claimed in claim 19, wherein, step (e) comprising:
According to described notice, stop the data of MBMS transmission business.
25. communication means as claimed in claim 19, wherein, step (e) comprising:
According to described notice, change described service bearing mode, and transmit the data of described MBMS business via the service bearer after changing.
26. communication means as claimed in claim 19, wherein, described service bearing mode comprises: ptp mode and PTM pattern.
27. a communicator that is used for supporting in the IMS system MBMS business comprises:
MBMS initiation of services module, it comprises:
(1), provides the module that can obtain professional essential information to a UE via a signaling control channel;
(2) receive ability information from this UE, confirming to support the module of MBMS business,
Wherein, this ability information represents that this UE possesses via the described ability that obtains business of MBMS pattern reception;
MBMS operation assistance module, it comprises:
(3) receive module from the service request that sends based on described essential information of this UE;
(4) according to described ability information and described service request, assist described UE and MBMS service node to set up the module of service bearer, so that described MBMS service node can transmit the data of described business to described UE via described service bearer, the described module of setting up service bearer comprises again:
(4.1), will be used for the module that the professional information transmitted of MBMS is transferred to described MBMS service node according to described service request;
(4.2) reception is from the module that is used for the professional transmission parameters of MBMS accordingly of described MBMS service node;
(4.3), this parameter is transferred to the module of described UE via described signaling control channel;
(5) receive module from the request of the adjustment service bearing mode of described UE via described signaling control channel transmission;
(6), notify described MBMS service node to adjust the module of the bearing mode of described MBMS business according to the request of described adjustment service bearing mode.
28. communicator as claimed in claim 27, wherein, the professional information transmitted of the described MBMS of being used for comprises the configuration information of media information and described UE at least; The professional transmission parameters of the described MBMS of being used for comprises at least: be used for the information of media information and be used to make described UE to become described MBMS service node multicast group membership's information.
29. communicator as claimed in claim 27, wherein, notify described MBMS service node to adjust the module of the bearing mode of described MBMS business, can notify described MBMS service node to stop the data of MBMS transmission business according to the request of described adjustment service bearing mode; And/or, can notify described MBMS service node to change described service bearing mode according to the request of described adjustment service bearing mode, so that described UE receives the data of described MBMS business via the service bearer after changing.
30. a user terminal is used for carrying out the communication means of supporting the MBMS business in the IMS system, this user terminal comprises:
The ability information Switching Module, it comprises:
Be used for via a signaling control channel, reception is from the module of the essential information of the obtained business of an application server; With
According to described essential information, can detection receive the module of described obtainable business via the MBMS pattern;
And, then send the module of an ability information to described application server if can receive described obtainable business via the MBMS pattern, receive the described professional ability that obtains to represent that this UE possesses via the MBMS pattern;
The MBMS business execution module, it comprises:
Be used for based on described essential information, send the module of a service request to described application server; With
Be used to receive from described application server be used for the professional transmission parameters of MBMS, setting up service bearer, thereby receive module from the business datum of MBMS service node transmission via this service bearer with a MBMS service node;
Adjust the service bearer request module, be used for, send a request of adjusting service bearing mode to described application server via described signaling control channel.
31. user terminal as claimed in claim 30, wherein, can detection receive the module of described obtainable business via the MBMS pattern, comprising: according to the configuration information of described UE, judge that can described UE receive the module of described obtainable business via the MBMS pattern; And/or, according to the configuration information of described UE, determine whether described UE possesses the ability of parallel processing business, can receive the module of the media information of related the obtained business of described essential information via the MBMS pattern concurrently to judge described UE.
32. user terminal as claimed in claim 30, wherein, when described UE leaves the MBMS service coverage area, or when the service quality of MBMS business is adjusted in described UE expectation, or when described UE expectation receives different media resource information, described adjustment service bearer request module via described signaling control channel, sends the request of described adjustment service bearing mode to described application server.
33. a communicator that is used for supporting in the IMS system MBMS business comprises:
MBMS business support module, it comprises:
Be used to receive the module that is used for the professional information transmitted of MBMS from an application server;
Be used for the professional information transmitted of MBMS according to this, the module that is used for the professional transmission parameters of MBMS accordingly is provided to described application server;
The professional transport module of MBMS, it comprises:
Utilize this parameter, set up the module of the service bearer that is used for the MBMS business with UE, with via described service bearer to described UE service data transmission, wherein said UE obtains this parameter by described application server;
The service bearer adjusting module, it comprises:
Be used to receive module from the notice of the bearing mode of the described MBMS business of the adjustment of described application server;
According to this notice, adjust the module of described service bearer.
34. communicator as claimed in claim 33, wherein, the professional information transmitted of the described MBMS of being used for comprises the configuration information of media information and described UE at least; The professional transmission parameters of the described MBMS of being used for comprises at least: be used for the information of media information and be used to make described UE to become described MBMS service node multicast group membership's information.
35. communicator as claimed in claim 33 wherein, is set up the module of the service bearer be used for the MBMS business with UE, comprising:
According to described parameter, allow described UE to add the module of the multicast of described MBMS business;
According to the access network assigned radio resource, set up the module of described service bearer with described UE;
Via described service bearer, to the module of the data of described UE MBMS transmission business.
36. communicator as claimed in claim 33 wherein, is adjusted the module of described service bearer, comprising: according to described notice, stop the module of the data of MBMS transmission business; And/or, according to described notice, change described service bearing mode, and transmit the module of the data of described MBMS business via the service bearer after changing.
Priority Applications (2)
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| CN2006101126394A CN101136814B (en) | 2006-08-28 | 2006-08-28 | Method and device for supporting MBMS service |
| PCT/EP2007/058719 WO2008025708A2 (en) | 2006-08-28 | 2007-08-22 | Method and device for adjusting service carrier modes for mbms services in ims |
Applications Claiming Priority (1)
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| CN101925010A (en) * | 2009-06-12 | 2010-12-22 | 中兴通讯股份有限公司 | Method and system for determining modulating and coding scheme of multimedia broadcast/multicast service |
| CN102695130B (en) | 2011-03-21 | 2016-12-21 | 中兴通讯股份有限公司 | MBMS sends mode changing method, device and subscriber equipment |
| US9137843B2 (en) * | 2011-07-01 | 2015-09-15 | Telefonaktiebolaget L M Ericsson (Publ) | Method and node for controlling bearer related resources as well as a corresponding system and computer program |
| US8447316B2 (en) | 2011-10-03 | 2013-05-21 | Renesas Mobile Corporation | Method and apparatus for communicating hidden common enhanced dedicated channel resources |
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| KR20160143145A (en) * | 2015-06-04 | 2016-12-14 | 삼성전자주식회사 | Method for providing multimidea service and electronic device thereof |
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| CN101136814A (en) | 2008-03-05 |
| WO2008025708A2 (en) | 2008-03-06 |
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