CN101051864A - Synchronizing method for realizing RLC sequence number between RNC for MBMS service - Google Patents
Synchronizing method for realizing RLC sequence number between RNC for MBMS service Download PDFInfo
- Publication number
- CN101051864A CN101051864A CNA2007100869553A CN200710086955A CN101051864A CN 101051864 A CN101051864 A CN 101051864A CN A2007100869553 A CNA2007100869553 A CN A2007100869553A CN 200710086955 A CN200710086955 A CN 200710086955A CN 101051864 A CN101051864 A CN 101051864A
- Authority
- CN
- China
- Prior art keywords
- link control
- network controller
- sequence number
- radio link
- radio network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The method includes steps: step 102, message source outputs service data packet (SDP), and marking transmitting sequence number (TSN) for SDP; step 104, after receiving SDP, wireless network controller reads out TSN; step 106, wireless network controller carries out wireless link control banding for SDP, and based on TSN to determine sequence number of wireless link control band. The invention realizes synchronization of RLC sequence number between RNCs. Thus, even if in condition of packet loss, sequence number in RLC layer of MBMS service data packet still keeps synchronization between RNCs.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of multimedia broadcast multicast services (multimedia broadcast/multicast service that is used for, abbreviate MBMS as) professional realization Radio Link control (radio link control, abbreviate RLC as) sequence number synchronous method between radio network controller (radio network controller abbreviates RNC as).
Background technology
Now, people have no longer contented just to phone and messaging service for the demand of mobile communication, and along with the fast development of Internet net, a large amount of multimedia services emerge.For the some of them applied business, a plurality of users can receive identical data simultaneously, for example, and video request program, television broadcasting, video conference, online education, interactive game etc.
In order to realize utilizing most effectively mobile network resource, the MBMS technology has been proposed.To be a data source send the point-to-multipoint service of data to a plurality of users to the MBMS technology, is used to realize that Internet resources share, and comprises sharing of mobile core network and access network resource, and especially interface-free resources shares.The MBMS of 3GPP definition not only can realize the classes of messages multicast and the broadcasting of plain text low rate, can also realize the multimedia service multicast and the broadcasting of two-forty, and this has complied with the trend of following mobile data development undoubtedly.
As the technology that improves the professional availability of frequency spectrum of MBMS, single frequency network (singlefrequency network abbreviates SFN as) or chip-level merge all identical wireless signals of adjacent base station synchronized transmission of (Chip merging) specification requirement.
Under the SFN pattern, subscriber equipment (user equipment, abbreviate UE as) signal from different base station can be considered as multipath signal, make public physic channel transmit broadcasting service and obtain bigger signal gain, thereby improved service quality (quality of service the abbreviates QoS as) performance of MBMS business.Yet the introducing of this technology has brought new problem, that is, owing to be considered as multipath from the signal of different base station by mobile phone, just require each footpath data must keep synchronized transmission.Under the Chip merging patterns, UE receives the service signal that different base station sends simultaneously, and realizes merging at chip-level by the multi-plot joint detection technique, and the MBMS service signal that this different districts that just requires UE to receive sends all is the same at same time slot.
Variation has taken place in the protocol stack of user's face after the 3GPP introducing MBMS, radio network controller (radio network controller, abbreviate RNC as) can be when the MBMS service carrier is set up according to core net service area (service area, abbreviate SA as) tabulation, be organized into the cell set mode with affiliated subdistrict and set up shared PDCP (the packet data convergence protocol in a plurality of sub-districts, abbreviate PDCP as) and Radio Link control (radio link control, abbreviate RLC as) entity, medium access control (the medium access control for MBMS of MBMS is separately used in each sub-district, abbreviate MAC-m as) and Frame Protocol separately (frame protocol abbreviates FP as).Wherein, RLC uses Unacknowledged Mode (unacknowledged mode abbreviates the UM pattern as).
The MBMS business is the service towards the whole network, and same MBMS business may be based upon on the different RNCs.Like this, the UE receiving gain is improved in order to utilize SFN or Chip folding in the sub-district between different RNCs, just needs the MBMS business identical with the sub-district synchronized transmission of the adjacent R NC signal of eating dishes without rice or wine.Otherwise, belong to that signal can cause co-channel interference between the neighbor cell of different RNCs, perhaps UE can not get receiving gain.
Realizing that RLC belongs to the sub-district of the minizone of different RLC can the identical signal of eating dishes without rice or wine of synchronized transmission, need to guarantee the consistency of business datum and agreement control packet header content, this just requires different RNC to guarantee that when realizing that RLC handles the RLC sequence number is synchronous, wants the identical RLC sequence number of mark to identical business data packet.
Realize in the scheme synchronous between the professional RNC of MBMS at a kind of core net mark timestamp that uses, consider the possibility of Network Packet Loss, time-delay, if certain RNC does not receive business data packet in wanting seeking time, and other RNC has received this packet in the time that requires, then according to the processing mode of existing protocol, the RLC sequence number that different RNCs is distributed will occur inconsistent.For example, the RLC sequence number that the RNC of packet loss distributes occurs and to lag behind the RNC that does not have packet loss.The difference of RLC sequence number can cause the professional relevant wireless signal difference of synchronization, thereby makes that wireless signal is asynchronous between RNC.
Therefore, need a kind of RLC sequence number synchronous method between radio network controller that in the MBMS business, realizes.
Summary of the invention
Consider the problems referred to above that exist in the correlation technique and make the present invention that for this reason, main purpose of the present invention is to provide a kind of synchronous scheme of realization Radio Link control sequence number between radio network controller of the MBMS of being used for business.
According to embodiments of the invention, provide a kind of synchronous method of realization Radio Link control sequence number between radio network controller of the MBMS of being used for business.
This method comprises: step S102, and information source outgoing traffic packet, and mark transmits Sequence Number in business data packet; Step S104, radio network controller receive after the business data packet, read to transmit Sequence Number; And step S106, radio network controller carries out Radio Link control burst to business data packet, and determines the sequence number of each Radio Link control burst according to transmitting Sequence Number.
Before step S102, by the maximum transmission length L of configuration or signaling information source/wireless network controller service packet.Wherein, information source makes the length of business data packet send length L near maximum as far as possible when the outgoing traffic packet.Wherein, radio network controller can be known the maximum number N that sends the Radio Link control burst of length correspondence of business data packet by calculating or disposing.
Wherein, the span that transmits Sequence Number is for from 0 to predetermined maximum, unidirectional increasing progressively, when value behind predetermined maximum, information source is redistributed since 0.
In step S106, radio network controller is determined the sequence number P1 of first Radio Link control burst of above-mentioned business data packet according to following formula:
P1＝(N×S)％M；
Wherein, S is for transmitting Sequence Number, and N is the maximum number that sends the Radio Link control burst of length L correspondence of RNC business data packet, and the maximum that M equals Radio Link control sequence number adds 1.
From first sequence number P1 begin the sequence number Pi of follow-up i Radio Link control burst correspondence of this business data packet of continuous dispensing, wherein, Pi=(P1+i) %M, and i＞1.
In addition, after step S106, further comprise following processing: in wireless chain control layer is handled,, fill processing for Radio Link control (RLC) protocol Data Unit (PDU) that does not fill up.
Wherein, information source be following any: core net node, service node.
By technical scheme of the present invention, realized the RLC sequence number between RNC synchronously, even make that MBMS business data packet rlc layer sequence number also can keep synchronous between RNC under the situation of packet loss.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart that illustrates according to the method for synchronous of realization Radio Link control (RLC) sequence number between radio network controller (RNC) that is used for the MBMS business of the embodiment of the invention; And
Fig. 2 illustrates the flow chart of controlling the example of the method for synchronous of (RLC) sequence number between radio network controller (RNC) according to the realization Radio Link that is used for the MBMS business of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below with reference to accompanying drawings in detail.
A kind of synchronous method of realization Radio Link control sequence number between radio network controller of the MBMS of being used for business is provided in embodiments of the present invention; Fig. 1 is the flow chart that this method is shown.
With reference to Fig. 1, this method comprises: step S102, and information source outgoing traffic packet, and mark transmits Sequence Number in business data packet; Step S104, radio network controller receive after the business data packet, read to transmit Sequence Number; And step S106, radio network controller carries out Radio Link control burst to business data packet, and determines the sequence number of each Radio Link control burst according to transmitting Sequence Number.
Wherein, information source be following any: core net node, service node.
Below describe according to the realization Radio Link control sequence that is used for the MBMS business of the embodiment of the invention synchronous method number between radio network controller by instantiation, wherein, Fig. 2 shows the detailed process flow chart of this example.
At first, core network source can know that the maximum of each outgoing traffic packet of MBMS business sends length L by configuration or signaling method.RNC can know that the maximum of the business data packet that information source sends sends length L by configuration or signaling method, and by calculating or dispose the RLC burst number N of knowing that this length data bag needs.
In step S202, information source is when the outgoing traffic packet, and length of data package is as much as possible near the maximum length L that sends, to improve channel transport efficiency.Here, the business datum packet length is meant the protocol definition according to MBMS, need send to the data length of subscriber equipment (userequipment abbreviates UE as).(corresponding to above-mentioned steps S102)
In step S204, information source mark information source in the outgoing traffic packet transmits Sequence Number.Wherein, the span that transmits Sequence Number increases progressively continuously from 0 to certain particular value (that is, predetermined maximum), after arriving this particular value, distributes since 0 again.Each business datum information source that is responsible for assigning transmits Sequence Number.(corresponding to above-mentioned steps S102)
In step S206, RNC RLC entity receives RLC Service Data Unit (service data unit abbreviates SDU as) afterwards, reads in the business data packet information source of the mark S that transmits Sequence Number.(corresponding to above-mentioned steps S104)
RNC should satisfy condition for first RLC burst sequence number P1 that distributes behind this business datum packet fragmentation: and P1=(%M of N * S), wherein, M is that the maximum of RLC sequence number adds 1, N is the number of the RLC burst of the packets need of this maximum transmission length L.(corresponding to above-mentioned steps S106)
The sequence number that RNC counts the follow-up burst of bag to this business carries out following distribution: Pi=(P1+i) %M, and wherein Pi is the sequence number of i Radio Link control burst of this business data packet, and i＞1.
Then, in the rlc layer of RLC is handled, the RLC PDU that does not fill up is carried out RLC fill processing.
In sum, in technical scheme of the present invention since the mapping of the sequence number by the information source mark obtain the rlc layer sequence number, even make that MBMS business data packet rlc layer sequence number also can keep synchronous between RNC under the situation of packet loss.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a realization Radio Link control sequence that the is used for multimedia broadcast-multicast service synchronous method number between radio network controller is characterized in that, comprising:
Step S102, information source outgoing traffic packet, and mark transmits Sequence Number in described business data packet;
Step S104, radio network controller receive after the described business data packet, read described transmitting Sequence Number; And
Step S106, described radio network controller carries out Radio Link control burst to described business data packet, and determines the sequence number of each Radio Link control burst according to described transmitting Sequence Number.
2. the synchronous method of the realization Radio Link control sequence that is used for multimedia broadcast-multicast service according to claim 1 number between radio network controller, it is characterized in that, before described step S102, by the maximum transmission length L of configuration or the described information source of signaling/described business data packet of described radio network controller.
3. the synchronous method of the realization Radio Link control sequence that is used for multimedia broadcast-multicast service according to claim 2 number between radio network controller, it is characterized in that, described information source makes the length of described business data packet send length L near described maximum as far as possible when the described business data packet of output.
4. the synchronous method of the realization Radio Link control sequence that is used for multimedia broadcast-multicast service according to claim 1 number between radio network controller, it is characterized in that, the described span that transmits Sequence Number is to predetermined maximum from 0, unidirectional increasing progressively, after value arrived described predetermined maximum, described information source was redistributed since 0.
5. the synchronous method of the realization Radio Link control sequence that is used for multimedia broadcast-multicast service according to claim 1 number between radio network controller, it is characterized in that, in described step S106, described radio network controller is determined the sequence number P1 of first Radio Link control burst according to following formula:
P1＝(N×S)％M；
Wherein, S is described transmitting Sequence Number, and N is the described maximum number that sends the Radio Link control burst of length L correspondence of described business data packet, and the maximum that M equals Radio Link control sequence number adds 1.
6. the synchronous method of the realization Radio Link control sequence that is used for multimedia broadcast-multicast service according to claim 5 number between radio network controller, it is characterized in that described radio network controller is by calculating or dispose the described maximum number N that sends the described Radio Link control burst of length L correspondence of knowing described business data packet.
7. the synchronous method of the realization Radio Link control sequence that is used for multimedia broadcast-multicast service according to claim 5 number between radio network controller, it is characterized in that, begin the sequence number Pi of follow-up i the Radio Link control burst correspondence of the described business data packet of continuous dispensing from described first sequence number P1, wherein, Pi=(P1+i) %M, and i＞1.
8. according to the synchronous method of each described realization Radio Link control sequence that is used for multimedia broadcast-multicast service in the claim 1 to 7 number between radio network controller, it is characterized in that, after described step S106, further comprise following processing:
In wireless chain control layer is handled,, fill processing for the wireless link control protocol data cell that does not fill up.
9. according to the synchronous method of each described realization Radio Link control sequence that is used for multimedia broadcast-multicast service in the claim 1 to 7 number between radio network controller, it is characterized in that, described information source be following any: core net node, service node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710086955A CN101051864B (en) | 2007-03-27 | 2007-03-27 | Synchronizing method for realizing RLC sequence number between RNC for MBMS service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710086955A CN101051864B (en) | 2007-03-27 | 2007-03-27 | Synchronizing method for realizing RLC sequence number between RNC for MBMS service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101051864A true CN101051864A (en) | 2007-10-10 |
| CN101051864B CN101051864B (en) | 2012-09-05 |
Family
ID=38783082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710086955A Expired - Fee Related CN101051864B (en) | 2007-03-27 | 2007-03-27 | Synchronizing method for realizing RLC sequence number between RNC for MBMS service |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101051864B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010017713A1 (en) * | 2008-08-13 | 2010-02-18 | 中兴通讯股份有限公司 | Synchronization realizing method and system for control sequence number |
| WO2010017728A1 (en) * | 2008-08-14 | 2010-02-18 | 中兴通讯股份有限公司 | Method and apparatus for recovery processing of synchronously transmitted service data |
| WO2010124412A1 (en) * | 2009-04-28 | 2010-11-04 | 上海贝尔股份有限公司 | A message transmission method and the corresponding device thereof |
| CN101605300B (en) * | 2008-06-12 | 2013-02-27 | 上海寰创通信科技股份有限公司 | Reliable multicast system of wireless network and control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391201C (en) * | 2005-02-28 | 2008-05-28 | 华为技术有限公司 | Method for holding packet data protocol convergence sublayer sequence number synchronization |
-
2007
- 2007-03-27 CN CN200710086955A patent/CN101051864B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605300B (en) * | 2008-06-12 | 2013-02-27 | 上海寰创通信科技股份有限公司 | Reliable multicast system of wireless network and control method thereof |
| WO2010017713A1 (en) * | 2008-08-13 | 2010-02-18 | 中兴通讯股份有限公司 | Synchronization realizing method and system for control sequence number |
| US8873537B2 (en) | 2008-08-13 | 2014-10-28 | Zte Corporation | Synchronization method and system of control sequence numbers |
| WO2010017728A1 (en) * | 2008-08-14 | 2010-02-18 | 中兴通讯股份有限公司 | Method and apparatus for recovery processing of synchronously transmitted service data |
| RU2450467C1 (en) * | 2008-08-14 | 2012-05-10 | ЗетТиИ Корпорейшн | Method and apparatus for recovering synchronously transmitted service data |
| US8462687B2 (en) | 2008-08-14 | 2013-06-11 | Zte Corporation | Method and apparatus for recovery processing of synchronously transmitted service data |
| WO2010124412A1 (en) * | 2009-04-28 | 2010-11-04 | 上海贝尔股份有限公司 | A message transmission method and the corresponding device thereof |
| CN102301673A (en) * | 2009-04-28 | 2011-12-28 | 上海贝尔股份有限公司 | A Message Transmission Method And The Corresponding Device Thereof |
| US8983512B2 (en) | 2009-04-28 | 2015-03-17 | Alcatel Lucent | Method and apparatus for transmitting messages |
| CN102301673B (en) * | 2009-04-28 | 2016-03-30 | 上海贝尔股份有限公司 | The equipment of method for message transmission and correspondence thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101051864B (en) | 2012-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101039175B (en) | Method and system for synchronizing RLC in wireless network controllers | |
| CN1906906B (en) | Optimized radio bearer configuration for voice over IP | |
| CN1969475B (en) | Methods and apparatus for cellular broadcasting and communication system | |
| EP1183803B1 (en) | Method and apparatus for routing packet data in a communications system | |
| CA2441625C (en) | Packet transmission method and system, base station, wireless lan terminal, and wireless lan system using the same | |
| US8121084B2 (en) | Area management system | |
| CN101741538B (en) | Synchronous dispatching method | |
| CN101043641A (en) | Inter-RNC MBMS data synchronization method and system | |
| CN101132545B (en) | Method and system for implementing multimedia broadcast multicast in mobile communication system | |
| JP2010063115A (en) | Pdcp structure and operation method for mbms service of mobile communication system | |
| US20080101220A1 (en) | Header suppression/compression apparatus and method for providing multicast and broadcast service (MBS) in broadband wireless access system | |
| CN101350663A (en) | Method and system for data synchronization of multimedia multicast and broadcast service | |
| CN101043653A (en) | Method for realizing transparent mode based inter-wireless network controller MBMS service synchronization | |
| CN101051864B (en) | Synchronizing method for realizing RLC sequence number between RNC for MBMS service | |
| CN101047437B (en) | Method for controlling serial number synchronization for radio link and radio network controller | |
| RU2435326C2 (en) | Method of synchronisation of broadcasting/multi-address transfer of multimedia information | |
| KR100956817B1 (en) | Method of processing packet data and an apparatus thereof | |
| CN101051889B (en) | Method and system for realizing service data consistence between network controllers | |
| CN101552948A (en) | Method for synchronously sending same MBMS service data by wireless network controller | |
| CN101047492B (en) | Method and system for implementing synchronous RLC serial number between radio network controller | |
| CN101316133A (en) | Multimedia broadcast multicast service transmission method and device | |
| CN1716830A (en) | Method for realizing multimedia broadcast and multi cast service by air interface | |
| CN101500193B (en) | Method for multimedia broadcast multicast service data synchronization between RNCs | |
| CN101562602B (en) | Method for indicating data format type in MBMS service data synchronization system | |
| CN101500191A (en) | Implementing method for multimedia broadcast multicast service resource allocation synchronization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20180327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |