CN101267248A - Synchronization method and device spanning across wireless network controller in broadcast service data - Google Patents
Synchronization method and device spanning across wireless network controller in broadcast service data Download PDFInfo
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Abstract
The present invention provides a broadcasting service data across wireless network controller synchronization method and a device thereof, wherein the method comprises the following procedures: when the broadcast or multiple-broadcast is transmitted on common channel and a wireless bearing is established, transmitting an enquiry instruction by a core network through each wireless network controller related by the user orienting service to inquire a current connecting frame number of the transmission channel of the bearing service and recording the current time when the enquiry instruction is transmitted; selecting the current connecting frame number of the transmission channel of the bearing service of a small area by each wireless network controller, and reporting the current connecting frame number orienting the core network from the user; recording the current connecting frame number by the core network, and calculating the time delay of the data transmission path from the core network to each wireless network controller; and calculating and recording the maximum time delay in each time delay by the core network, calculating a transmitting time for transmitting data and assigning that each wireless network controller transmits at an assigned time. Therefore the data synchronization across RNC is realized.
Description
Technical field
The present invention relates to the 3G (Third Generation) Moblie network, more specifically, relate to a kind of spanning across wireless network controller in broadcast service data method for synchronous and device.
Background technology
Along with the commercialization of 3-G (Generation Three mobile communication system), broadcasting of transmitting on common signal channel and multicast service are more and more at present.Because mobile communication system in many-sided influences such as power, interference, for guaranteeing the quality of reception of this broadcasting service or multicast service, presses for when subscriber equipment (UE, User Equipment) receives, introduce the physical layer folding.Merge for introducing physical layer, just must guarantee that the signal of a plurality of sub-districts that UE received is to arrive UE synchronously, and the content of each sub-district emission is in full accord.
For existing universal mobile telecommunications system (UMTS, Universal MobileTelecommunication System) radio network controller (RNC in the network, RadioNetwork Controller) Nei Bu sub-district, because the resource of these sub-districts is all by a RNC unified management, therefore, than be easier to realize in the RNC the minizone synchronously.But between RNC, because the data between each RNC are by core net (CN, CoreNetwork) send, just must realize striding the data sync of RNC, guarantee that time and content that CN arrives each RNC are synchronous, can guarantee that to guarantee RNC data can synchronized transmission by certain mode, make these service signals arrive the time synchronized of UE, thereby guarantee that UE can carry out physical layer and merge, therefore improve the professional quality of reception of UE.
In present UMTS network, also there is not the ripe synchronous technology of RNC of striding.In the certain methods that proposes recently, mostly adopt the mode that in CN and RNC, adopts the common clock source to realize the time synchronized of Iu mouth (interface between RNC and the CN), and then realize striding the data sync of RNC.But public external clock reference of this Technology Need as global positioning system (GPS, Global Position System), needs to add new hardware and software like this, and makes processing comparatively bother.
And insert (TD-SCDMA in TD SDMA, TimeDivision-Synchronous Code Division Multiple Access) in the system, when sending broadcasting or multi-cast business data, the radio bearer that same nature can be set up in each sub-district transmits this broadcasting or multi-cast business data.At this moment, the Connection Frame Number of the transmission channel of each this business datum of cell transmission (CFN, Connection Frame Number) is synchronous, and this helps us and utilizes CFN to realize striding the data sync of RNC.Therefore be badly in need of wanting a kind of spanning across wireless network controller in broadcast service data method for synchronous and device, to realize striding the data sync of RNC.
Summary of the invention
In order to address the above problem, the invention provides a kind of customer equipment identification acquisition methods and device, utilize the transport channel synchronization thought of TD-SCDMA system, transmission channel CFN after the transport channel synchronization is reported CN, CN calculates the propagation delay time of each RNC by the time that receives CFN, and then realizes striding the data sync of RNC.
According to an aspect of the present invention, the present invention proposes a kind of spanning across wireless network controller in broadcast service data method for synchronous, it can may further comprise the steps: step S102, when the transmission broadcast or multicast is professional on common signal channel, after radio bearer is set up, core net sends current Connection Frame Number (CFN) value of query statement with the transmission channel of inquiry bearer service by each related radio network controller of user's service-oriented, and writes down the current time when sending query statement; Step S104 after each radio network controller receives query statement, chooses the current Connection Frame Number value of the transmission channel of a sub-district bearer service, reports current Connection Frame Number (CFN) value from the user towards core net; Step S106, core net receives after each current Connection Frame Number (CFN) value of transmission channel of each radio network controller, write down current Connection Frame Number (CFN) value, and current time and time of reception during according to the transmission query statement that write down, calculate the time delay of core net to the data transfer path of each radio network controller; And step S108, the maximum time that core net is calculated and write down in each time delay postpones, and postpone to calculate the transmitting time that sends data according to maximum time, and specify each radio network controller to send in the moment of appointment according to current Connection Frame Number (CFN) value.
According to an aspect of the present invention, in step S106, can also comprise following processing: core net judges whether to receive that all relate to current Connection Frame Number (CFN) value of professional radio network controller transmission channel, if received all current Connection Frame Number (CFN) values, then proceed to step S108, otherwise, repeating step S106.
Difference between current time when wherein, time delay can be time of reception and transmission query statement.
Another aspect of the present invention also provides a kind of spanning across wireless network controller in broadcast service data synchronizer, it can comprise: the query statement transmitting element, be positioned on the core net, when being used on common signal channel, transmitting the broadcast or multicast business, after radio bearer is set up, send current Connection Frame Number (CFN) value of query statement by each related radio network controller of user's service-oriented, and write down the current time when sending query statement with the transmission channel of inquiry bearer service; The report unit is used for after each radio network controller receives query statement, chooses current Connection Frame Number (CFN) value of the transmission channel of a sub-district bearer service, reports current Connection Frame Number (CFN) value from the user towards core net; The time delay computing unit, be used for after receiving each current Connection Frame Number (CFN) value of each radio network controller transmission channel, write down current Connection Frame Number (CFN) value, and current time and time of reception during according to the transmission query statement that write down, calculate the time delay of core net to the data transfer path of each radio network controller; And transmitting time determining unit, be used for calculating and writing down the maximum time delay of each time delay, and postpone to calculate the transmitting time that sends data according to maximum time, and specify each radio network controller in the transmission of the moment of appointment according to current Connection Frame Number (CFN) value.
According to a further aspect in the invention, in the time delay computing unit, can also comprise: judging unit, be used to judge whether to receive that all relate to current Connection Frame Number (CFN) value of professional radio network controller transmission channel, wherein, if received all current Connection Frame Number (CFN) values, then send instruction to the transmitting time determining unit, otherwise, continue the operation in the time delay computing unit.
Difference between current time when wherein, time delay can be time of reception and transmission query statement.
Therefore, use technology provided by the present invention, can not be used in the new clock of introducing between CN and the RNC, but expansion utilizes existing synchronization mechanism in the existing system, just can realize comparatively simply that CN strides the RNC synchronous data transmission to RNC, guaranteed data in the synchronous transmission of eating dishes without rice or wine, and then can realize merging, thereby improved quality of service in physical layer.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to spanning across wireless network controller in broadcast service data method for synchronous of the present invention;
Fig. 2 is the block diagram according to spanning across wireless network controller in broadcast service data synchronizer of the present invention; And
Fig. 3 utilizes CFN realization broadcast and multicast service data to stride the flow chart of the synchronous method of RNC according to an embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to spanning across wireless network controller in broadcast service data method for synchronous of the present invention.As shown in Figure 1, the spanning across wireless network controller in broadcast service data method for synchronous may further comprise the steps:
Step S102, when the transmission broadcast or multicast is professional on common signal channel, after radio bearer is set up, core net sends current Connection Frame Number (CFN) value of query statement with the transmission channel of inquiry bearer service by each related radio network controller of user's service-oriented, and writes down the current time when sending query statement;
Step S104 after each radio network controller receives query statement, chooses current Connection Frame Number (CFN) value of the transmission channel of a sub-district bearer service, reports current Connection Frame Number (CFN) value from the user towards core net;
Step S106, core net receives after each current Connection Frame Number (CFN) value of transmission channel of each radio network controller, write down current Connection Frame Number (CFN) value, and current time and time of reception during according to the transmission query statement that write down, calculate the time delay of core net to the data transfer path of each radio network controller; And
Step S108, the maximum time that core net is calculated and write down in each time delay postpones, and postpone to calculate the transmitting time that sends data according to maximum time, and specify each radio network controller to send in the moment of appointment according to current Connection Frame Number (CFN) value.
In addition, in step S106, also comprise following processing:
Core net judges whether to receive that all relate to current Connection Frame Number (CFN) value of professional radio network controller transmission channel, if received all current Connection Frame Number (CFN) values, then proceeds to step S108, otherwise, repeating step S106.
Difference between current time when wherein, time delay is time of reception and transmission query statement.
Fig. 2 is the block diagram according to spanning across wireless network controller in broadcast service data synchronizer of the present invention.As shown in Figure 2, spanning across wireless network controller in broadcast service data synchronizer 200 comprises: query statement transmitting element 202, be positioned on the core net, when being used on common signal channel, transmitting the broadcast or multicast business, after radio bearer is set up, send current Connection Frame Number (CFN) value of query statement by each related radio network controller of user's service-oriented, and write down the current time when sending query statement with the transmission channel of inquiry bearer service; Report unit 204 is used for after each radio network controller receives query statement, chooses current Connection Frame Number (CFN) value of the transmission channel of a sub-district bearer service, reports current Connection Frame Number (CFN) value from the user towards core net; Time delay computing unit 206, be used for after receiving each current Connection Frame Number (CFN) value of each radio network controller transmission channel, write down current Connection Frame Number (CFN) value, and, calculate the time delay of core net to the data transfer path of each radio network controller according to current time of being write down and time of reception; And transmitting time determining unit 208, be used for calculating and writing down the maximum time delay of each time delay, and postpone to calculate the transmitting time that sends data according to maximum time, and specify each radio network controller to send on the net at the carrier frequency of appointment according to current Connection Frame Number (CFN) value.
In addition, in time delay computing unit 206, also comprise: judging unit 2062, be used to judge whether to receive that all relate to current Connection Frame Number (CFN) value of professional radio network controller transmission channel, wherein, if received all current Connection Frame Number (CFN) values, then send instruction to transmitting time determining unit 208, otherwise, continue the operation in the time delay computing unit 206.
Difference between current time when wherein, time delay is time of reception and transmission query statement.
Fig. 3 utilizes CFN realization broadcast and multicast service data to stride the flow chart of the synchronous method of RNC according to an embodiment of the invention.As shown in Figure 3, method comprises:
Step 302: after the radio bearer of each sub-district was set up and finished in related each RNC of this business, what CN initiated data strode the synchronous flow process of RNC, and the data sync flow process begins;
Step 304:CN sends the CFN query requests to each RNC that this business relates to by user's face, and the current time wCurrentTime of record CN;
Step 306: each RNC that this business relates to has jurisdiction over the CFN value of choosing little this service transmission channel of area carrier each sub-district after receiving the CFN query requests of CN in RNC, reports the CFN value of the professional radio bearer that this RNC should business from the user towards CN;
Step 308:CN receive RNC report the CFN value after, local zone time wCurrentTIme that preserves according to self and the time wRbTime that receives calculate the time delay wRelayTime of this RNC, i.e. wRelayTime=wRbTime-wCurrentTIme);
Step 310:CN judges whether to receive the current C FN of all RNC.If collect,, calculate the transfer of data maximum time delay wMaxRelayTime of CN, and preserve this maximum time delay and this CFN value to each RNC then according to the time delay of being calculated to each RNC.If no, then changing step 304 over to continues to carry out.
When step 312:CN sent business datum, the data that postpone selection CN according to the maximum time of calculating sent opportunity, and the specified services data specify each RNC to guarantee synchronizing traffic data arrival UE in corresponding C FN emission in the CFN value of eating dishes without rice or wine simultaneously.
Therefore, in sum, the present invention utilizes the transport channel synchronization thought of TD-SCDMA system, and the transmission channel CFN after the transport channel synchronization is reported CN, and CN calculates the propagation delay time of each RNC by the CFN that reports, thereby has realized striding the data sync of RNC.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, 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 (6)
1. a spanning across wireless network controller in broadcast service data method for synchronous is characterized in that, may further comprise the steps:
Step S102, when the transmission broadcast or multicast is professional on common signal channel, after radio bearer is set up, core net sends the current Connection Frame Number value of query statement with the transmission channel of the described business of inquiry carrying by the user towards each related radio network controller of described business, and the current time of record when sending described query statement;
Step S104 after each described radio network controller receives described query statement, chooses the current Connection Frame Number value of the transmission channel of a described business of little area carrier, reports described current Connection Frame Number value from described user towards described core net;
Step S106, described core net receives after each described current Connection Frame Number value of transmission channel of each described radio network controller, write down described current Connection Frame Number value, and, calculate the time delay of described core net to the data transfer path of each described radio network controller according to the described current time and the time of reception that are write down; And
Step S108, the maximum time that described core net is calculated and write down in each described time delay postpones, and postpone to calculate the transmitting time that sends data according to described maximum time, and specify each described radio network controller to send in the moment of appointment according to described current Connection Frame Number value.
2. spanning across wireless network controller in broadcast service data method for synchronous according to claim 1 is characterized in that, in described step S106, also comprises following processing:
The described current Connection Frame Number value of the described radio network controller transmission channel that described core net judges whether to receive that all relate to described business, if received all described current Connection Frame Number values, then proceed to described step S108, otherwise, repeating said steps S106.
3. spanning across wireless network controller in broadcast service data method for synchronous according to claim 1 and 2 is characterized in that, described time delay is described time of reception and the difference between the described current time.
4. a spanning across wireless network controller in broadcast service data synchronizer is characterized in that, comprising:
The query statement transmitting element, be positioned on the core net, when being used on common signal channel, transmitting the broadcast or multicast business, after radio bearer is set up, send the current Connection Frame Number value of query statement by the user towards each related radio network controller of described business with the transmission channel of the described business of inquiry carrying, and the current time of record when sending described query statement;
The report unit is used for after each described radio network controller receives described query statement, chooses the current Connection Frame Number value of the transmission channel of a described business of little area carrier, reports described current Connection Frame Number value from described user towards described core net;
The time delay computing unit, be used for after receiving each described current Connection Frame Number value of each described radio network controller transmission channel, write down described current Connection Frame Number value, and, calculate the time delay of described core net to the data transfer path of each described radio network controller according to the described current time and the time of reception that are write down; And
The transmitting time determining unit, be used for calculating and writing down the maximum time delay of each described time delay, and postpone to calculate the transmitting time that sends data according to described maximum time, and specify each described radio network controller to send in the moment of appointment according to described current Connection Frame Number value.
5. spanning across wireless network controller in broadcast service data synchronizer according to claim 4 is characterized in that, in described time delay computing unit, also comprises:
Judging unit, the described current Connection Frame Number value of the described radio network controller transmission channel that is used to judge whether to receive that all relate to described business,
Wherein,, then send instruction to described transmitting time determining unit if received all described current Connection Frame Number values, otherwise, the operation in the described time delay computing unit continued.
6. according to claim 4 or 5 described spanning across wireless network controller in broadcast service data synchronizers, it is characterized in that described time delay is described time of reception and the difference between the described current time.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702533A (en) * | 2013-12-09 | 2015-06-10 | 中国联合网络通信集团有限公司 | Time delay compensation method and time delay compensation device for links |
| CN108737969A (en) * | 2017-04-17 | 2018-11-02 | 普天信息技术有限公司 | A kind of group-calling service transmission conversion process method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100512543C (en) * | 2004-02-17 | 2009-07-08 | 华为技术有限公司 | Method for setting wireless access load |
| CN1728881A (en) * | 2004-07-29 | 2006-02-01 | 北京三星通信技术研究有限公司 | The method that control data sends |
| CN1897745A (en) * | 2005-07-15 | 2007-01-17 | 北京三星通信技术研究有限公司 | Equilibrium method for transmitting MBMS service data |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702533A (en) * | 2013-12-09 | 2015-06-10 | 中国联合网络通信集团有限公司 | Time delay compensation method and time delay compensation device for links |
| CN104702533B (en) * | 2013-12-09 | 2018-01-26 | 中国联合网络通信集团有限公司 | A kind of chain-circuit time delay compensation method and device |
| CN108737969A (en) * | 2017-04-17 | 2018-11-02 | 普天信息技术有限公司 | A kind of group-calling service transmission conversion process method and device |
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Effective date of registration: 20170912 Address after: 065700 room 2, apartment 107, Yue Yuan Garden, two oil factory, Bazhou Town, Bazhou, Langfang, Hebei Patentee after: Zhang Fuqiang Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee before: ZTE Corporation |
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