CN1972471A - A method for informing update state of mobile multimedia broadcasting terminal control information table - Google Patents
A method for informing update state of mobile multimedia broadcasting terminal control information table Download PDFInfo
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- CN1972471A CN1972471A CNA2006101571547A CN200610157154A CN1972471A CN 1972471 A CN1972471 A CN 1972471A CN A2006101571547 A CNA2006101571547 A CN A2006101571547A CN 200610157154 A CN200610157154 A CN 200610157154A CN 1972471 A CN1972471 A CN 1972471A
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- information table
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Abstract
This invention relates to one method to inform mobile multi-media broadcasting terminal control information, which comprises the following steps: a, system sends first update sequence control information list to terminal; b, terminal receives control list to get first update signal; c, system sends business data by complex frame form composed of second update sequence number; d, terminal receives complex frame to judge whether the second list update sequence is same with received control information list; if yes, then terminal does not receive control information list; if not terminal generates control information update status.
Description
Technical field
The present invention relates to the digital mobile communication field, relate in particular to a kind of method of mobile multimedia broadcast system design control information table.
Background technology
In recent years, Digital Video Broadcast Handheld), MediaFLO (the single forward link of medium: Media Forward Link Only) etc. of the U.S. digital mobile multimedia broadcasting technology and standard evolution are rapid, and for example (the digital video broadcast-handheld formula receives Ou Zhou DVB-H:.
Compare with analogue technique, a great advantage of digital mobile multimedia broadcasting network is exactly: under the prerequisite that satisfies professional quality of service requirement, a broadcast channel can improve the utilization ratio of Radio Resource so greatly by the multiplexing transmission of supporting a plurality of business.The data that we will be within a certain period of time obtain behind the data multiplex of a plurality of business are called a broadcast frame.For receiving terminal, owing on a broadcast frame a plurality of business are arranged, in order to receive required one or more business quickly and accurately, terminal need one can broadcast frame of accurate description in each professional use the broadcast channel resource information--we are referred to as multiplexing control information.Multiplexing control information is generated when multiplexing by transmitting terminal, and multiplexing control information generally can send prior to business datum, so that the use of terminal.
In mobile multimedia broadcast system, because the importance of multiplexing control information generally can need better protection measure (for example using channel coding technology, low order constellation mapping such as the BPSK with better receiving feature) to multiplexing control information in the mobile multimedia broadcast system; Simultaneously for the consideration of the time of reception that reduces the mobile multimedia receiving terminal, generally the payload user data with multiplexing control information and miscellaneous service separates transmission.
Because multiplexing control information is to separate to transmit with the payload data of business, so how to guarantee that receiving terminal is when receiving required business, can reduce the number of times that obtains multiplexing control information, receiving terminal is in time notified in the variation that can guarantee multiplexing control information again, is one of emphasis of a mobile multimedia broadcast system design.
Summary of the invention
The object of the present invention is to provide a kind of variation that can utilize less overhead-bits to guarantee control information in time to notify receiving terminal, cause receiving terminal to be difficult to the correct problem of judging because receiving terminal inserts at random in the time of avoiding adopting one to upgrade indication bit again, thereby reduce the number of times of receiving terminal receiving control information better.
For convenience of description, a broadcast channel frame further is subdivided into one or more multiplexed frames herein, a business or a multiplexing control information table only transmit in a multiplexed frame; A multiplexed frame can carry one or more business/multiplexing control information table.See accompanying drawing 1.
To achieve these goals, the present invention adopts following technical scheme:
A kind of method of notifying mobile multi-media broadcast terminal control information update mode comprises the steps:
(1) mobile multimedia broadcast system sends to terminal and has first renewal sequence control information list;
(2) terminal receiving control information table obtains first and upgrades sequence number from the control information table;
(3) mobile multimedia broadcast system sends business datum with the form of multiplexed frame to terminal, comprises second control information table updating sequence number in the frame head of multiplexed frame;
(4) terminal receives multiplexed frame, judges whether second control information table updating sequence number be identical with first renewal sequence number of paid-in control information table, and when identical, terminal is the receiving control information table no longer; When inequality, terminal generates control information table updating mark.
Further, said method also can comprise:
(5) after control information table updating mark generates, terminal is receiving control information table or wait for receiving control information table when professional the switching taken place at once, and terminal was no longer handled the control information table updating sequence number in the multiplex frame head before receiving control information table once more.
Described step (5) comprises that further after obtaining the control information table again, terminal is preserved up-to-date control information table updating sequence number, removes described control information table updating mark simultaneously.
Method provided by the present invention, utilize the control information table updating sequence number to notify receiving terminal control information table update mode, utilize less overhead bit to reach and reduce the number of times that receiving terminal obtains the control information table, thereby reduce the time of reception of mobile multimedia broadcast system receiving terminal and the complexity of processing, thereby the realization terminal is economized on electricity better.
Description of drawings
Fig. 1 is the broadcast channel frame and the multiplexed frame structural representation of mobile multimedia broadcast system;
Fig. 2 is that the Overhead in the mobile multimedia broadcast system multiplexed frame is formed schematic diagram;
Fig. 3 is the control information table after upgrading and the transmission flow of control information table updating sequence number;
Fig. 4 is that receiving terminal is when using continuously business, for the processing procedure of Overhead and Overhead renewal indication.
Embodiment
The present invention can guarantee again in time to notify receiving terminal with the variation of multiplexing configuration information when receiving terminal obtains multiplexing configuration information number of times reducing, the multiplexing configuration information that terminal is received as required upgrade.Embodiment is as follows:
The first, in mobile multimedia broadcast system, different business is carried out when multiplexing, need to generate the necessary control information table and in advance the control information table is sent to receiving terminal; The renewal sequence number that contains the control information table in the control information table;
The second, mobile multimedia broadcast system sends the renewal sequence number of one or more control information tables in each multiplexed frame, is used to indicate the renewal sequence number of the control information table of the follow-up broadcast channel frame of receiving terminal;
The 3rd, when the renewal sequence number of control information table showed that the control information of follow-up broadcast channel frame is not upgraded, in follow-up broadcast channel frame, receiving terminal need not to read the control information table, only needed to receive required multiplexed frame;
The 4th, when the renewal sequence number of control information table showed that the control information of follow-up broadcast channel frame has renewal, when receiving terminal read Overhead after the renewal according to the state decision of self.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 comprises a plurality of multiplexed frames for the broadcast channel frame structural representation of mobile multimedia broadcast system broadcasting code stream in a broadcast channel frame, the control information epi-position is in the multiplexed frame of a special use.
Fig. 2 is the composition schematic diagram of some Overhead that frame head comprised of multiplexed frame, and Overhead contains the renewal sequence number of control information table, update sequence number of network information list for example shown in Figure 2.
Fig. 3 is the control information table after upgrading and the transmission flow of control information table updating sequence number, all is to be sent to receiving terminal from the Mobile Multimedia Broadcasting emission system by the mobile media broadcasting network system for its receiving terminal provides control information table after the renewal and control information to upgrade sequence number, and flow process is as follows:
Flow process a: the Mobile Multimedia Broadcasting emission system sends current control information table;
Flow process b: the Mobile Multimedia Broadcasting emission system is sent out " the control information table upgrades preface " to receiving terminal in advance;
Flow process c: mobile multimedia broadcast system begins control information table after terminal send to be upgraded in the moment of regulation.
Fig. 4 has illustrated receiving terminal in receiving business procedure, for the processing procedure of control information table updating sequence number.Need to receive current Overhead table after the mobile multimedia broadcast receiving terminal start, and then obtain required some business according to the control information table; Receiving terminal is when receiving business, handling the multiplexed frame of receiving each time therebetween, need the processing control information table updating sequence number, and monitor described control information table by described renewal sequence number and whether will change, when the control information table updating sequence number shows that the control information table of follow-up broadcast channel frame does not upgrade, in next frame, receiving terminal need not to read control information, only needs to receive required multiplexed frame; When the control information table updating sequence number shows that the control information table of follow-up broadcast channel frame has renewal down, just write down this renewal indication.When receiving terminal wishes to transfer to other business of reception, if the receiving terminal buffer memory control information table (establish upgrade sequence number be A), and when unwritten control information table upgraded indication, receiving terminal only need utilize the control information Table A of having preserved, and need not to receive once more Overhead; If there is not buffer memory control information table, perhaps there is the control information table of record to upgrade when indicating, receiving terminal needs receiving control information again, remove the control information of writing down previously simultaneously and upgrade indication and control information table updating sequence number, and restart to handle the control information table updating sequence number that carries in the required multiplexed frame.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof, those skilled in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of claim of the present invention.
Claims (3)
1, a kind of method of notifying mobile multi-media broadcast terminal control information update mode comprises the steps:
(1) mobile multimedia broadcast system sends to terminal and has first renewal sequence control information list;
(2) terminal receiving control information table obtains first and upgrades sequence number from the control information table;
(3) mobile multimedia broadcast system sends business datum with the form of multiplexed frame to terminal, comprises second control information table updating sequence number in the frame head of multiplexed frame;
(4) terminal receives multiplexed frame, judges whether second control information table updating sequence number be identical with first renewal sequence number of paid-in control information table, and when identical, terminal is the receiving control information table no longer; When inequality, terminal generates control information table updating mark.
2, the method for claim 1 is characterized in that, further comprises afterwards in step (4):
(5) after control information table updating mark generates, terminal is receiving control information table or wait for receiving control information table when professional the switching taken place at once, and terminal was no longer handled the control information table updating sequence number in the multiplex frame head before receiving control information table once more.
3, method as claimed in claim 2 is characterized in that,
Described step (5) comprises that further after obtaining the control information table again, terminal is preserved up-to-date control information table updating sequence number, removes described control information table updating mark simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101571547A CN100488267C (en) | 2006-11-30 | 2006-11-30 | A method for informing update state of mobile multimedia broadcasting terminal control information table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101571547A CN100488267C (en) | 2006-11-30 | 2006-11-30 | A method for informing update state of mobile multimedia broadcasting terminal control information table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1972471A true CN1972471A (en) | 2007-05-30 |
| CN100488267C CN100488267C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101571547A Expired - Fee Related CN100488267C (en) | 2006-11-30 | 2006-11-30 | A method for informing update state of mobile multimedia broadcasting terminal control information table |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008151575A1 (en) * | 2007-06-14 | 2008-12-18 | Zte Corporation | A method and a system for transmitting encrypted control message based on the mobile multimedia broadcast |
| WO2010072141A1 (en) * | 2008-12-26 | 2010-07-01 | 中兴通讯股份有限公司 | Method and system for updating multimedia broadcast multicast service control signaling |
| WO2010078808A1 (en) * | 2008-12-29 | 2010-07-15 | 中兴通讯股份有限公司 | Method and system for updating mbms control signaling based on base station |
| WO2010118608A1 (en) * | 2009-04-13 | 2010-10-21 | 中兴通讯股份有限公司 | Method and corresponding device for transmitting mobile multimedia broadcast program prompt information |
| CN101784012B (en) * | 2009-01-15 | 2013-12-04 | 中兴通讯股份有限公司 | Multimedia broadcast/multicast service (MBMS) control signaling update indication method and device |
-
2006
- 2006-11-30 CN CNB2006101571547A patent/CN100488267C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008151575A1 (en) * | 2007-06-14 | 2008-12-18 | Zte Corporation | A method and a system for transmitting encrypted control message based on the mobile multimedia broadcast |
| US8306223B2 (en) | 2007-06-14 | 2012-11-06 | Zte Corporation | Method and a system for transmitting encrypted control message based on mobile multimedia broadcast |
| WO2010072141A1 (en) * | 2008-12-26 | 2010-07-01 | 中兴通讯股份有限公司 | Method and system for updating multimedia broadcast multicast service control signaling |
| WO2010078808A1 (en) * | 2008-12-29 | 2010-07-15 | 中兴通讯股份有限公司 | Method and system for updating mbms control signaling based on base station |
| CN101784012B (en) * | 2009-01-15 | 2013-12-04 | 中兴通讯股份有限公司 | Multimedia broadcast/multicast service (MBMS) control signaling update indication method and device |
| WO2010118608A1 (en) * | 2009-04-13 | 2010-10-21 | 中兴通讯股份有限公司 | Method and corresponding device for transmitting mobile multimedia broadcast program prompt information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100488267C (en) | 2009-05-13 |
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Granted publication date: 20090513 Termination date: 20171130 |