CN100484267C - SRNS migrating method based on mobile network multicast service data - Google Patents
SRNS migrating method based on mobile network multicast service data Download PDFInfo
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Abstract
The present invention provides mobile network multicasting transaction data based SRNS migration method. Said method includes user equipment UE entering DRNC service area from SRNC service area, transmitting cell updating request to network side, network side making SRNS relocation operation, SRNC transmitting user equipment multicasting service establishing process context to DRNC, for switching multicasting service from SRNC to DRNC. The present invention realizes uninterrupted service from SRNC entering DRNC, through increasing cell in radio resource control package cell mode without modifying net element.
Description
Technical field
The present invention relates to SRNS Serving Radio Network Subsystem (the Serving Radio Network Subsystem in a kind of broadband CDMA system (WCDMA), SRNS) from service wireless network controller (ServingRadio Network Controller, SRNC) to floating radio network controller (Drift RadioNetwork Controller, DRNC) moving method refers to a kind of SRNS moving method of multi-cast business data especially.
Background technology
Along with the lifting of function and performance, mobile phone is not only to be used for the instrument of making a phone call already, and certain application can be supported and obtain to its function at aspects such as multi-media SMS, video request program, video telephone, mobile TVs.According to the information processing capability of present mobile phone, on mobile phone, watch the Streaming Media effect can satisfy, add that WCDMA is the bandwidth that Packet Service provides, we can say and on WCDMA, realize multimedia maturation.
At present, the existing streaming media service of playing on mobile phone all adopts the transmission means of point-to-point, referring to Fig. 1, Figure 1 shows that the realization principle schematic of point-to-point transmission.
(User Equipment, UE) (Core Network CN) carries out alternately each subscriber equipment, sets up the special-purpose IP data transmission channel that is connected with external network of being used for wireless access network (RAN), core net respectively.Afterwards, streaming media server sends the streaming media service data by this special-purpose IP data transmission channel to UE.Be that the IP data transmission channel of all setting up a special use between each UE and the streaming media server is used for the transmission stream media service data, streaming media server also is necessary for each UE and sends a piece of data respectively.
Based on above-mentioned principle, when a user need teleview by mobile phone, user's UE passes through network side, comprise SGSN, GGSN, IP transmission network, send the streaming media playing request to streaming media server, playing request can be carried by RTSP agreement or other media stream in real time interaction protocol, comprise user-selected program identification in this request, it is selected channel, network side is set up special-purpose IP data transmission channel between UE and streaming media server, after the IP data transmission channel was set up and finished, streaming media server was told UE with the attribute information that receives.So-called attribute information comprises the information such as IP address, port numbers, speed and coded format of data transmission channel.Afterwards, a and the pairing data of program identification of streaming media server copy, and the IP data transmission channel of these data by the special use of having set up sent to UE, UE is according to the attribute information that receives, to after the data decode that receives audio and video information being presented to the user.
Above-mentioned be with the streaming media service data instance Benq in the method for the service data transmission of mobile network, certainly the business datum of being transmitted in the mobile network is not limited only to the streaming media service data, the business datum of being transmitted can also be the media file business datum, as MTV, MP3 music file, video file, e-book, picture, electronic newspaper etc.
Because the method for existing service data transmission, between application server and each UE, all need to set up the IP data transmission channel of a special use, no matter whether each UE requires the business datum that receives identical, application server all will all send a piece of data for each UE, must occur same business datum like this and be sent out repeatedly, thereby make resource utilization very low, and, because the resource of network side is limit, the number of users of access is also restricted.
On the other hand, in real life, UE usually switches between different sub-districts, also can cross over different SRNS sometimes, and this follows migration with regard to the renewal that relates to the sub-district.
So-called cell update follows migration to be meant the UE that is in CELL_FACH (cell forward access channel) state and CELL_PCH (cell paging channel status) and URA_PCH (URA paging channel state), when the coverage of a RNC (SRNC) enters the coverage of another one RNC (DRNC), process by SRNS migration (SRNS RELOCATION), the context of UE is delivered to another one RNC from a RNC, simultaneously the wireless connections of UE is routed to the process of another one RNC from a RNC.
See also shown in Figure 2ly, it follows the flow process diagram of migration for cell update.UE sets up packet switching at SRNC (also be migration source RNC), and (Packet Switch, PS) business, and be in the CELL_FACH state enter the flow process that cell update is followed migration then.
UE enters the coverage of DRNC (also being the Target RNC of migration) from the coverage of SRNC, and after entering the coverage of DRNC, (UMTSTerrestrial Radio Access Network UTRAN) sends a cell update request (CellUpdate) to give the universal mobile telecommunications system grounding wireless access network.After DRNC received this cell update request, the up signaling transmission indicating information (Uplink Signalling Transfer Indication) by the Iur interface was transmitted to SRNC.SRNC carries out SRNS reorientation (Relocation) operation, the wireless connections of UE is moved among the DRNC, and the UE related context also is delivered to DRNC.DRNC is the resource that UE distributes access network, and sends cell update acknowledge message (Cell Update Confirm) to UE, simultaneously DRNC is notified to UE to the new context that UE distributes.UE returns acknowledge message, shows that cell update follows transition process success.After this, set up user's face passage between UE and DRNC (being new SRNC) and the CN, in the sub-district of new SRNC, carry out the PS business.
See also shown in Figure 3ly, the idiographic flow of the repositioning process of SRNS is as follows.After SRNC received up signaling transmission indicating information, decision was initiated cell update and is followed the migration flow process, sends reorientation requirement (Relocation Required) to CN.This requires message to pass through the contexts such as parameter that a Radio Resource control encapsulating cells (Radio Resource Control Container, RRC Container) is carried the channel of the current use of UE.CN issues DRNC with re-positioning request, and the RRCContainer cell information that will comprise in will asking passes through DRNC.DRNC distributes Radio Network Temporary Identifier (UTRAN Radio Network Temporary Identity, resource such as URNTI), and return the re-positioning request acknowledge message to CN to UE.CN receives the re-positioning request acknowledge message, sends the reorientation order to SRNC, and the present DRNC of notice SRNC all set.SRNC sends execution message of repositioning (Relocation Commit) to DRNC, and after this, SRNC no longer issues user face data to UE.After DRNC receives the execution message of repositioning that SRNC sends, send relocation detect-message, and DRNC has been finished the message informing CN of set-up procedure to CN.After this, CN just no longer issues user face data to SRNC, then has issued user face data to DRNC.When DRNC (being new SRNC) sign and Radio Network Temporary Identifier successfully exchanges with UE by wireless protocols, UE finished synchronous with DRNC, and DRNC finishes message to CN transmission reorientation, and finishes repositioning process.
The migration operation of this SRNS can realize UE finish when between the sub-district of different RNC, carrying out cell update with DRNC synchronously, but when UE is carrying out the multimedia service transmission, SRNC can't give DRNC with the cell multimedia service application layer context transfer of UE, so DRNC cannot finish the function of rebuilding the UE business contexts.Like this, when UE when the coverage of a RNC enters the coverage of another RNC, network side can't be routed to DRNC from SRNC with the cell multimedia business of UE, thereby causes the multimedia service data transmission to be interrupted.
In view of the foregoing, the present invention proposes a kind of multimedia multicast service that carries out, the method for the SRNS migration that simultaneously should business can not interrupt because of migration.
Summary of the invention
The multimedia multicast service that the object of the present invention is to provide a kind of UE of realization is routed to the SRNS moving method based on the wireless network multi-cast business data of DRNC from SRNC,
The object of the invention is achieved through the following technical solutions: a kind of SRNS moving method based on mobile network multicast service data, this method comprises that user equipment (UE) enters the coverage of DRNC from the coverage of SRNC, send the cell update request to network side, network side carries out SRNS reorientation operation, described network side is provided with the multicast agent module and acts on behalf of media server, described multicast agent module further comprises the control agent module, and the multicast service of described subscriber equipment is set up the process context and is kept in the described control agent module; SRNC sends the reorientation requirement to core net CN, and in described reorientation requires, carried from the multicast service of the subscriber equipment in the described control agent module and set up the process context by Radio Resource control encapsulating cells, CN receives described reorientation requirement, transmit re-positioning request to DRNC, so that multicast service is routed to DRNC from SRNC.
The reconstruction of multimedia multicast service finished in the context that DRNC sets up process according to multicast service, make migration finish after the multimedia multicast service of subscriber equipment do not interrupt, thereby in DRNC, proceed multimedia multicast service.
The multicast agent module further comprises the agent data module, and described control agent resume module is connected with TCP with the professional control connection of subscriber equipment, and described agent data module receives the business datum from data source, the distribution of processing multicast service data.
Wherein, this method further comprises the steps:
After DRNC receives re-positioning request, return the re-positioning request acknowledge message to network side;
SRNC receives the reorientation order that network side sends, and sends execution message of repositioning to DRNC;
DRNC is with RNC sign and Radio Network Temporary Identifier and UE exchange; And
UE finish with DRNC synchronously, DRNC sends reorientation to network side and finishes message, and finishes repositioning process.
Compared with prior art, the present invention is by increasing the mode of cell in the public RRC CONTAINER of reorientation requirement and RELOCATION REQUEST message, give DRNC the context transfer that the multimedia multicast service among the SRNC is relevant, make DRNC rebuild multimedia multicast service with UE, business was not interrupted after realization UE entered into DRNC from SRNC.Simultaneously, because Radio Resource control encapsulation RRC Container cell is transparent for core net, when the RRC Container that increases the multimedia multicast service related context transmits information between two RNC, core net just is transparent to it another one RNC from a RNC simply, need not core network element is made amendment.
Description of drawings
Fig. 1 is the realization principle schematic based on mobile network's business datum point-to-point transmission.
Fig. 2 follows the flow process diagram of migration for cell update.
Fig. 3 is the idiographic flow diagram of the repositioning process of SRNS.
Fig. 4 is a kind of principle schematic of implementation method of the multi-cast business data based on the mobile network.
Embodiment
A kind of SRNS moving method of the present invention based on mobile network multicast service data, after UE enters the coverage of DRNC from the coverage of SRNC, it sends the cell update request to network side, network side carries out SRNS reorientation operation, wherein network side is when carrying out SRNS reorientation operation, the UE multicast service is set up the process context be sent to DRNC, so that multicast service is routed to DRNC from SRNC.
See also shown in Figure 4, a kind of implementation method of the multi-cast business data based on the mobile network, this method proposes the function of streaming media server is moved down into the RAN side, be connected the Play Technique for Multimedia of setting up by multicast agent module (MA) is set in the RAN side with realizing multimedia, thereby realize that point transmits to the data of multiple spot.
Wherein, this multicast agent module is made of jointly control agent (CA) module and agent data (DA) module.The CA module has been acted on behalf of the ICP/IP protocol layer and real-time stream media protocol (the RealtimeStreaming Protocol of streaming media server, RTSP) protocol layer, it is mainly handled with the professional control connection of UE and is connected with TCP (Transmission Control Protocol), wherein professional control connection can be the Streaming Media control connection, as RTSP, it also can be the control connection that file transmits, as put multiple spot unidirectional file transfer protocol (FTP) (File Delivery over Unidirectional Transport, FLUTE).The DA module is acted on behalf of the real-time media data distribution function of streaming media server, it mainly handles concrete multi-cast business data distribution processor, reception is from the business datum of data source, at CA module or signaling and controlled processing unit (Signal AndControl Unit, SACU) under the control, data are sent to UE by the Traffic Channel that RAN sets up.
Can find out that thus in this implementation method based on mobile network's multi-cast business data, the CA module has been substituted streaming media server, finish with the Streaming Media multicast service of UE and set up process.Set up in the process in the business of this method, the CA module is preserved the Streaming Media multicast service of UE and is set up the process context when the Streaming Media multicast service of execution and UE is set up process.The present invention promptly utilizes these characteristics, proposes the method for the SRNS migration that a kind of multimedia multicast service can not interrupt because of migration.
UE sets up packet switching service from the SRNC Serving cell, enter the coverage of DRNC when being in the CELL_FACH state.UE sends the cell update request to DRNC.DRNC is forwarded to SRNC with this request.After SRNC receives this cell update request, start the migration flow process, send the reorientation requirement to CN, and in this requirement, carry RRC Container cell.All contexts that comprised UE in this RRC Container cell, and this context comprises the context of common migration and the context that the newly-increased Streaming Media multicast service that is stored in the CA module is set up process.After the reorientation that CN reception SRNC sends requires, send RELOCATION REQUEST message to DRNC, and the RRC Container cell information that the SRNC reorientation is required to comprise in the message also passes through DRNC.DRNC preserves the context that the Streaming Media multicast service is set up process, and finishes the reconstruction of multimedia multicast service according to this context, make migration finish after the multimedia multicast service of UE do not interrupt, in DRNC, proceed multimedia multicast service.When continuing to carry out cell multimedia broadcasting service as UE, DRNC can finish issuing of multimedia multicast service data; If follow-up UE initiates to discharge, DRNC can finish dispose procedure at the context of SRNC originally according to UE.
The present invention is by increasing the mode of cell in the public RRC CONTAINER of reorientation requirement and RELOCATION REQUEST message, give DRNC the context transfer that the multimedia multicast service among the SRNC is relevant, make DRNC rebuild multimedia multicast service with UE, business was not interrupted after realization UE entered into DRNC from SRNC.Simultaneously, because RRC Container cell is transparent for CN, when the RRC Container that increases the multimedia multicast service related context transmits information between two RNC, CN just is transparent to it another one RNC from a RNC simply, need not core network element is made amendment.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. SRNS moving method based on mobile network multicast service data, this method comprises that user equipment (UE) enters the coverage of DRNC from the coverage of SRNC, send the cell update request to network side, network side carries out SRNS reorientation operation, it is characterized in that:
Described network side is provided with the multicast agent module and acts on behalf of media server, and described multicast agent module further comprises the control agent module, and the multicast service of described subscriber equipment is set up the process context and is kept in the described control agent module;
SRNC sends the reorientation requirement to core net CN, and in described reorientation requires, carried from the multicast service of the subscriber equipment in the described control agent module and set up the process context by Radio Resource control encapsulating cells, CN receives described reorientation requirement, transmit re-positioning request to DRNC, so that multicast service is routed to DRNC from SRNC.
2. the SRNS moving method based on mobile network multicast service data as claimed in claim 1, it is characterized in that: the reconstruction of multimedia multicast service finished in the context that DRNC sets up process according to multicast service, the multimedia multicast service of subscriber equipment does not interrupt to make migration finish afterwards, thereby proceeds multimedia multicast service in DRNC.
3. the SRNS moving method based on mobile network multicast service data as claimed in claim 1, it is characterized in that: described multicast agent module further comprises the agent data module, described control agent resume module is connected with TCP with the professional control connection of subscriber equipment, described agent data module receives the business datum from data source, the distribution of processing multicast service data.
4. the SRNS moving method based on mobile network multicast service data as claimed in claim 1, it is characterized in that: this method further comprises the steps:
After DRNC receives re-positioning request, return the re-positioning request acknowledge message to network side;
SRNC receives the reorientation order that CN sends, and sends execution message of repositioning to DRNC;
DRNC disposes newly assigned RNC sign and Radio Network Temporary Identifier to UE; And
UE finish with DRNC synchronously, DRNC sends reorientation to CN and finishes message, and finishes repositioning process.
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| CN101009644B (en) * | 2006-12-25 | 2011-03-30 | 华为技术有限公司 | A holding method for cross-Iur interface connection of the multicast service and DRNC |
| CN102413578B (en) * | 2007-02-13 | 2014-07-30 | 华为技术有限公司 | Method, system and equipment for sending data to user equipment |
| CN101262639B (en) * | 2007-03-06 | 2011-06-15 | 华为技术有限公司 | Migration method for service wireless network controller and wireless network controller |
| CN101188550B (en) * | 2007-03-21 | 2010-12-08 | 中兴通讯股份有限公司 | Method and device for reporting cell support capability for uplink high-rank modulation |
| CN101188552B (en) * | 2007-03-21 | 2011-05-25 | 中兴通讯股份有限公司 | Method and device for reporting cell support capability for downlink high-rank modulation |
| CN101188799B (en) * | 2007-06-01 | 2010-12-01 | 中兴通讯股份有限公司 | Method for the network controller to report circulation cycle capability of maximum discontinuous transmission of the cell |
| CN101400110B (en) * | 2007-09-27 | 2011-12-07 | 华为技术有限公司 | Method and system for determining paging transmission channel |
| CN101594655B (en) * | 2008-05-28 | 2014-06-25 | 上海华为技术有限公司 | Method, device and system for migrating high speed uplink packet access (HSUPA) business |
| CN101583123B (en) * | 2009-06-15 | 2011-06-08 | 华为技术有限公司 | Handover method among packet switching domain systems, device and system |
| CN101616388B (en) * | 2009-08-05 | 2012-06-20 | 中国联合网络通信集团有限公司 | Method and system for realizing service transfer between RNCs in different manufacturers |
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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |