CN101262280A - A method for inter-frequency transmission of multicast broadcast and multicast service - Google Patents
A method for inter-frequency transmission of multicast broadcast and multicast service Download PDFInfo
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- CN101262280A CN101262280A CNA2007101356102A CN200710135610A CN101262280A CN 101262280 A CN101262280 A CN 101262280A CN A2007101356102 A CNA2007101356102 A CN A2007101356102A CN 200710135610 A CN200710135610 A CN 200710135610A CN 101262280 A CN101262280 A CN 101262280A
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Abstract
The invention provides a method for transmitting MBMS (Multimedia Broadcast/Multicast Service) with the same frequency, which comprises the steps as follows: (a) the MBMS is divided into one or a plurality of service groups according to different service nature; (b) cells in a continuously covered area are divided into one or a plurality of cell groups; the binding relationship between the service groups and the cell groups is established; MBMS service areas are formed; the same MBMS service area adopts the same frequency and time slot for loading the MBMS service; (c) MBMS service scrambles are distributed among the MBMS service areas, and different MBMS service scrambles are distributed to different MBMS service areas; (d) each cell uses MBMS service scrambles of the MBMS service area to which the cell belongs to transmit the MBMS service.
Description
Technical field
The present invention relates to wireless communication system, relate in particular to a kind of multimedia broadcasting and multicast service (MBMS:Multimedia Broadcast/MulticastService) method for transmitting in TD SDMA (TD-SCDMA) system.
Background technology
Along with the commercialization of 3-G (Generation Three mobile communication system), mobile TV service (Mobile TV) more and more receives the concern of operator at present.In the TD-SCDMA system, adopt MBMS carrying television services also to become an active demand.
And some problems are provided when providing MBMS professional in the TD-SCDMA system.Point multipoint message traffic channel (MTCH) under MBMS point-to-multipoint (PTM) mode is to be mapped to forward access channel (FACH), and finally is carried on the Secondary Common Control Physical Channel (SCCPCH).Public physic channel SCCPCH uses omni-directional antenna transmission.Owing to can't adopt smart antenna at common signal channel, therefore according to the existing business emission, just be subject to service power and presence of intercell interference when on common signal channel, receiving the MBMS Traffic Channel, make the quality of reception of MBMS business to be guaranteed.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of taking place frequently together in continuous overlay area and penetrates the method for MBMS business, improves the quality of reception of MBMS business.
A kind of taking place frequently together penetrated the method for multimedia broadcasting and multicast service, comprises following steps:
(a) multimedia broadcasting and multicast service MBMS are divided into one or more service groups according to Business Nature;
(b) microzonation in the continuous overlay area is divided into one or more cell set, sets up the binding relationship of service groups and cell set, form the MBMS service area, same MBMS service area adopts identical frequency and time slot carrying MBMS business;
(c) for the MBMS service area distributes the professional scrambler of MBMS, different MBMS service areas distributes the professional scrambler of different MBMS;
(d) the professional scrambler emission of the MBMS MBMS business of the affiliated MBMS service area in this sub-district is used in each sub-district.
The MBMS service area is multicast group or broadcast area in the described step (b).
Be the scrambler of each cell allocation corresponding to cell ID in the described step (c), the professional scrambler of described MBMS is different from the scrambler corresponding to cell ID.
Each sub-district is adopted and is launched non-MBMS business corresponding to the scrambler of cell ID in the described step (d).
Adopt the radiation pattern of MBMS business of the present invention, the MBMS service signal of each sub-district emission can bring gain not have the deficiency of intelligent antenna figuration to remedy common signal channel for UE in the same MBMS service area, can detect (MJD) elimination co-channel interference by multi-plot joint in different multicast group or broadcast area border.
Description of drawings
The operational flowchart of the professional emission of MBMS when accompanying drawing 1 is identical networking.
Embodiment
A kind of method of penetrating the MBMS industry in continuous overlay area with taking place frequently of the present invention comprises the following steps:
Step 1: providing demand according to business, is network carrying traffic differentiation the professional and non-MBMS business of MBMS;
Step 2: to the MBMS business,, business is divided into a plurality of service groups, the identical MBMS business of each service groups carrying according to traffic performance;
Here said service groups can be meant a kind of grouping according to professional covering relation.The business that just has identical covering relation is divided into one group.All cover same zone such as MBMS business 1,2,3, then form a service groups.
Step 3: the sub-district of continuous overlay area is divided, be divided into a plurality of cell set, and set up the binding relationship of service groups and cell set, form the MBMS service area;
Described MBMS service area can be multicast group or broadcast area;
In a MBMS service area, identical frequency and time slot carrying MBMS business are adopted in each sub-district.
The division of sub-district is to divide according to the sub-district covering relation.
Step 4: according to the delineation of activities of front, be the professional scrambler of MBMS service area corresponding district set of dispense MBMS, the professional scrambler of MBMS is different from the corresponding scrambler of cell ID (Cell ID) of each sub-district; Different MBMS service areas must distribute the professional scrambler of different MBMS.
The professional scrambler distribution of MBMS is the binding (service area) corresponding to service groups and cell set.
Step 5: the scrambler corresponding to cell ID (Cell ID) is adopted in each sub-district when the non-MBMS of emission is professional, when emission MBMS is professional, adopts the professional scrambler of MBMS of distributing to MBMS service area under this sub-district.
If neighbor cell belongs to different MBMS service areas, then the MBMS service area must use the professional scrambler of different MBMS under these two sub-districts.
Enforcement below in conjunction with 1 pair of the inventive method of accompanying drawing is described in further detail.
In conjunction with the accompanying drawings, the inventive method comprises the following steps:
Step 301: the business to the network carrying is divided, and obtains two collection of services { { MBMS business }, { non-MBMS business } };
Step 302: the MBMS collection of services is divided, the MBMS business is divided into a plurality of service groups, promptly the MBMS services sets=MBMS service groups 1} ..., { MBMS service groups n}};
Step 303: divided into groups in sub-district in the continuous overlay area, promptly the sub-district=cell set 1} ..., { cell set m}}; And set up the corresponding binding relationship of MBMS combinations of services cell set, as service groups i, cell set j} form multicast group or broadcast area, and for distributing identical frequency according to business demand, a time slot and a yard resource in all sub-districts in this group;
Step 304: for the professional multicast group of MBMS or broadcast area distribute the professional scrambler of the MBMS that is different from the cell ID (Cell ID) corresponding to each sub-district, different multicast group or broadcast area must distribute the professional scrambler of different MBMS, form the binding of multicast group or service area zone and the professional scrambler of MBMS, i.e. { service groups i, cell set j, scrambler m};
Step 305: each sub-district is according to the professional scrambler emission of the MBMS MBMS business of this sub-district subordinate MBMS multicast group or broadcast area distribution.
Claims (4)
1. same taking place frequently penetrated the method for multimedia broadcasting and multicast service, comprises following steps:
(a) multimedia broadcasting and multicast service MBMS are divided into one or more service groups according to Business Nature;
(b) microzonation in the continuous overlay area is divided into one or more cell set, sets up the binding relationship of service groups and cell set, form the MBMS service area, same MBMS service area adopts identical frequency and time slot carrying MBMS business;
(c) for the MBMS service area distributes the professional scrambler of MBMS, different MBMS service areas distributes the professional scrambler of different MBMS;
(d) the professional scrambler emission of the MBMS MBMS business of the affiliated MBMS service area in this sub-district is used in each sub-district.
2. the method for claim 1 is characterized in that: the MBMS service area is multicast group or broadcast area in the described step (b).
3. the method for claim 1 is characterized in that: be the scrambler of each cell allocation corresponding to cell ID in the described step (c), the professional scrambler of described MBMS is different from the scrambler corresponding to cell ID.
4. method as claimed in claim 3 is characterized in that: each sub-district is adopted and is launched non-MBMS business corresponding to the scrambler of cell ID in the described step (d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101356102A CN101262280B (en) | 2007-03-05 | 2007-03-05 | A method for inter-frequency transmission of multicast broadcast and multicast service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101356102A CN101262280B (en) | 2007-03-05 | 2007-03-05 | A method for inter-frequency transmission of multicast broadcast and multicast service |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101262280A true CN101262280A (en) | 2008-09-10 |
| CN101262280B CN101262280B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101356102A Expired - Fee Related CN101262280B (en) | 2007-03-05 | 2007-03-05 | A method for inter-frequency transmission of multicast broadcast and multicast service |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729169A (en) * | 2008-10-14 | 2010-06-09 | 国家广播电影电视总局广播科学研究院 | Method and device for transmitting and receiving multimedia data |
| WO2010124423A1 (en) * | 2009-04-29 | 2010-11-04 | 上海贝尔股份有限公司 | Mbms service transmission method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736045B (en) * | 2003-01-06 | 2010-09-08 | 美商内数位科技公司 | Method and system for controlling the distribution of multimedia broadcast services |
| US20060040655A1 (en) * | 2004-08-12 | 2006-02-23 | Lg Electronics Inc. | Timing of point-to-multipoint control channel information |
| CN1905382B (en) * | 2005-07-25 | 2010-05-05 | 上海原动力通信科技有限公司 | Combination testing method for shared frequency broadcasting/multicasting |
-
2007
- 2007-03-05 CN CN2007101356102A patent/CN101262280B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729169A (en) * | 2008-10-14 | 2010-06-09 | 国家广播电影电视总局广播科学研究院 | Method and device for transmitting and receiving multimedia data |
| CN101729169B (en) * | 2008-10-14 | 2012-12-19 | 国家广播电影电视总局广播科学研究院 | Method and device for transmitting and receiving multimedia data |
| WO2010124423A1 (en) * | 2009-04-29 | 2010-11-04 | 上海贝尔股份有限公司 | Mbms service transmission method and device |
| US9125175B2 (en) | 2009-04-29 | 2015-09-01 | Alcatel Lucent | Method and apparatus for transmitting MBMS services |
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| Publication number | Publication date |
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| CN101262280B (en) | 2011-12-07 |
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