CN1859269A - Method for improving interface broad band availability between base station and base station controller - Google Patents
Method for improving interface broad band availability between base station and base station controller Download PDFInfo
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- CN1859269A CN1859269A CNA2006100570335A CN200610057033A CN1859269A CN 1859269 A CN1859269 A CN 1859269A CN A2006100570335 A CNA2006100570335 A CN A2006100570335A CN 200610057033 A CN200610057033 A CN 200610057033A CN 1859269 A CN1859269 A CN 1859269A
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Abstract
The present invention discloses a method for raising interface band width utilization ratio between base station and base station controller. It contains A, base station controller configuring one public channel as reference channel in each cell public channel, configuring one or more than one public channel as non-reference channel, through reference channel transmitting business data to base station; B, base station copying received business data from reference channel to every non-reference channel, and through every public channel transmitting business data to every cell. Reference channel and non-reference channel configuration can be made by base station controller servicing platform notifying base station. Specially said business data is multimedia broadcast/multimedia service (MBMS) business data. The present invention can avoid repeat transmission business data and raise said interface band width utilization ratio.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method that improves interface bandwidth utilance between base station and the base station controller.
Background technology
Multimedia broadcasting and multicast (Multimedia Broadcast/Multicast Service, MBMS) business is the unidirectional multimedia service of a kind of single-point to multiple spot, it allows data to send to a plurality of recipients from the single source entity, utilizes high efficiency wireless forwarding method that identical data are downloaded to a plurality of mobile subscribers.Its main feature is can realize the taking for a long time of unidirectional down channel, realizes providing multimedia service to a large amount of mobile subscribers to the distribution mode of multiple spot with single-point.The MBMS business will be widely used in the next generation (NGN) wireless network.
At Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) in the system, the realization of MBMS business mainly is to handle MBMS indicating channel (MBMS Indication Channel in base station (Node B), MICH), and in public access channel forward (ForwardAccess Channel, FACH) last carrying broadcast or multicast business information.As shown in Figure 1, suppose that there are three sub-districts the base station, base station and radio network controller (RNC) are mutual by Iub interface.For the user who makes different districts can receive identical MBMS business, require each sub-district can both broadcast from same business channel data.Present MBMS service implementation method is as follows: corresponding to each sub-district, base station, set up a common signal channel FACH respectively at Iub interface, after being sent to RNC from the MBMS business datum of service source in the core net, respectively by these FACH with the MBMS business data transmission to the base station, by the base station MBMS business is sent to each sub-district again.Suppose that the transmission bandwidth that each cell configuration is identical among Fig. 1 is the MBMS business of 128k, efficiency of transmission is 0.8, and the transmission bandwidth that then needs to take Iub is 128k/0.8 * 3=480k.In the transmission bandwidth of this 480k, there is the bandwidth of 320k to be actually the data that repeat in transmission, the bandwidth to Iub interface is great waste like this.At other wireless communication systems, in code division multiplexing (CDMA) system, CDMA2000 system, time division synchronous code division multiplexing (TD-SCDMA) system, exist the problem of interface bandwidth waste between similar base station and the base station controller.
For the problem that interface repeats to transmit to business datum between base station and the base station controller in the MBMS business, a kind of solution is to increase this interface bandwidth to satisfy requirements for transmission, for example uses the transmission medium of optical fiber as this interface.But it is too high to upgrade to the required cost of optical fiber interface, and it is unpractical weighing from the angle of economy; And this way is a kind of scheme of evading problem, do not solve the problem that repeats service data transmission.
Summary of the invention
In view of this, the objective of the invention is to, propose a kind of method that improves interface bandwidth utilance between base station and the base station controller, can be implemented in the process that base station controller is issued to the MBMS business datum base station and avoid the repetition service data transmission.
This method comprises the steps:
A, base station controller are in each district common channel, and it is reference channel that a common signal channel is set, and it is non-reference channel that one or one or more common signal channel are set, and sends business datum by reference channel to the base station;
B, base station copy to each non-reference channel with the business datum that is received from reference channel, and by each common signal channel business datum are sent to each sub-district.
If by base station controller with reference channel and non-reference channel the advisory base station is set, then after described designated reference channel of steps A and the non-reference channel, this method further comprises:
A1, base station controller send the signaling of configurating channel to the base station; The base station is according to this signaling configuration reference channel and non-reference channel.
Comprise the sign of reference channel and the sign of one or more non-reference channels in the steps A 1 described signaling;
Steps A 1 described configuration reference channel with non-reference channel is: identify the channel identical with reference channel sign in the signaling and be set to reference channel, the channel that sign is identical with non-reference channel sign in the signaling is set to non-reference channel.
If by base station controller with reference channel and non-reference channel the advisory base station is set, before the then described steps A, this method further comprises:
Maintenance console sends to the base station with the sign of reference channel and the sign of one or more non-reference channels;
Step B is described duplicate before, this method further comprises:
The base station identifies the channel identical with the reference channel sign and is set to reference channel, and the channel that sign is identical with non-reference channel sign is set to non-reference channel.
Before the described steps A, this method further comprises:
Maintenance console sends to the base station with cell id RC-ID and one or more non-reference channel places cell id NRC-ID at reference channel place;
Step B is described duplicate before, this method further comprises:
The base station disposes reference channel and non-reference channel according to the corresponding relation of receiving cell id RC-ID and NRC-ID and cell id and channel.
The sign of described reference channel comprises: the channel logo RTC-ID and the RC-ID of reference channel;
The sign of non-reference channel comprises: the channel logo NRTC-ID and the NRC-ID of non-reference channel.
When the configuration of common channel situation changed, this method further comprised:
Configurating channel signaling after base station controller will upgrade sends to the base station; The base station reconfigures reference channel and non-reference channel according to the signaling of receiving.
It is characterized in that when the configuration of common channel situation changed, this method further comprises: warning message was sent to maintenance console in the base station.
It is characterized in that it is to send by Iub interface that described base station controller sends business datum to the base station.
Described business datum is a multimedia broadcast/multi broadcast MBMS business datum.
As can be seen, the interface between base station controller and base station only has a common signal channel transferring MBMS service data from above technical scheme, and finished by the base station identical services data is copied to each common signal channel and is forwarded to different districts.Therefore, the present invention program can avoid repeating service data transmission in base station controller is issued to the MBMS business datum process of base station, improves the bandwidth availability ratio of this interface.
Description of drawings
Fig. 1 is the schematic diagram that prior art WCDMA system realizes the MBMS business;
Fig. 2 is the method flow diagram of the embodiment of the invention one;
Fig. 3 is the method flow diagram of the embodiment of the invention two.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is further elaborated below in conjunction with accompanying drawing.
Core content of the present invention is: after being sent to base station controller from the MBMS business datum of core net service source, by a common signal channel in the interface between base station and the base station controller MBMS business datum is sent to the base station, and other channels communicating control information; At inside of base station, the MBMS business datum of being received copied to each channel and be forwarded to each sub-district of this base station.
Following examples are example with the WCDMA system all, and base station controller is RNC, and the interface between base station and the base station controller is an Iub interface.
For ease of statement, the present invention introduce the MBMS channel set (MBMS Channel Set, notion MCS): share identical Iub interface transmission bandwidth resource in same base station, the set that transmits one group of common signal channel of same MBMS service data is called a MCS; Have among the MCS channel be reference channel (Reference Transport Channel, RTC), RTC is used for transferring MBMS service data; Among the MCS all the other one or more channels be called non-reference channel (Non-ReferenceTransport Channel, NRTC), so the number of NRTC mostly is most, and total number of channels subtracts 1 among the MCS; NRTC is at an Iub interface control information transmission, and its business datum is all duplicated from RTC in the base station.
Difference according to specific implementation is illustrated the present invention below for two example two.
Embodiment one main contents are: RNC is MBMS channel set update command (the MBMS Channel Set Update Command by increasing newly on Iub interface, MCSUC), RTC and NRTC be provided with the advisory base station, finish MBMS business datum reproduction process between the MCS internal channel by the base station according to the MCSUC that is received, and send the MBMS business datum to each sub-district.
MCSUC can provide concrete definition according to base station application part agreement (NBAP), has listed the each several part content that is comprised among the MCSUC in the table 1, and its definition can provide with reference to the standard TS25.433 that third generation partner program (3GPP) formulated.
| The IE/Group title | Whether must occur | Span and type | IE type and with reference to agreement | Critical value whether | Given critical value |
| Message identifier (Message Discriminator) | Be | - | 9.2.1.45 | - | |
| Type of message (Message Type) | Be | 9.2.1.46 | Be | Ignore | |
| MBMS duplicating channel mode | Be | Operator (duplicate, delete, upgrade) | Be | Ignore | |
| Non-reference channel number | Be | Less than MCS maximum channel number | |||
| Service identification (Transaction ID) | Be | 9.2.1.62 | - | ||
| Reference channel cell id (Reference C-ID) | Be | Integer 0～65535 | 9.2.1.9 | ||
| Reference channel sign (RTC-ID) | Be | Integer 0～255 | 9.2.1.9 | - | |
| The MCS information | - | Following information may occur repeatedly | - | The overall situation | Ignore |
| ＞non-reference channel cell id (Non-Reference C-ID) | Be | Integer 0～65535 | 9.2.1.62 | ||
| ＞non-reference channel sign (NRTC-ID) | Be | Integer 0～65535 | 9.2.1.14 | - |
Table 1
The implication of important parameters is listed below in the table 1:
Reference channel sign (RTC-ID) and one or more non-reference channel sign (NRTC-ID) are respectively applied for RTC and NRTC in the mark MCS, and wherein the number of NRTC-ID equates with the number of NRTC;
The reference channel cell id (Reference C-ID, RC-ID) (Non-Reference C-ID NRC-ID), is respectively applied for the sub-district at sign RTC and NRTC place, and wherein the number of NRC-ID equates with the number of NRTC with non-reference channel cell id; Can unique definite common signal channel with cell id and channel logo;
MBMS duplicating channel mode (MBMS Replication Type) indicates the processing operation to the common signal channel among the MCS, comprises business datum is copied to each NRTC from RTC increase or erasure channel etc.
Each part of listed MCSUC can provide corresponding definition according to the IE type with reference to the normative document content of the section number correspondence of agreement one hurdle 3GPP standard in the table 1.
Before the operation flow of carrying out the embodiment of the invention, the RNC informing base station is set up each sub-district, and be the common signal channel of setting up of each sub-district of being set up, described each common signal channel be from RNC through the base station to this common signal channel corresponding district, the sign that each common signal channel has comprises the cell ID at a channel logo and this common signal channel place; After common signal channel is set up, synchronous again each common signal channel.
The operation flow of present embodiment comprises the steps: as shown in Figure 2
Step 201:RNC is in the common signal channel of each sub-district, and specifying a common signal channel is RTC, and the channel logo of this common signal channel is set to RTC-ID, and the cell id at this common signal channel place is set to RC-ID; Specifying one or more common signal channels is NRTC, and the cell id at the channel logo of each specified common signal channel and this common signal channel place is set to NRTC-ID and NRC-ID respectively, notices that the NRTC-ID of different N RTC and the value of NRC-ID have nothing in common with each other each other here; This step promptly is provided with RTC and NRTC by RNC.
Step 202:RNC issues the signaling MCSUC of configurating channel to the base station, has comprised a RTC-ID and RC-ID in this signaling, and a plurality of NRTC-ID and NRC-ID; And specify and channel logo and cell ID to be respectively business datum in the channel of RTC-ID and RC-ID copies to channel logo and cell ID is respectively in the channel of NRTC-ID and RNC-ID.
Step 203: the base station is according to the RTC-ID among the MCSUC that is received, RC-ID, NRTC-ID and NRC-ID, with channel logo is that RTC-ID, cell id are that the common signal channel of RC-ID is appointed as RTC, is that NRTC-ID, cell id are that the common signal channel of NRC-ID is appointed as NRTC with channel logo.This step is promptly by base station configuration RTC and NRTC.
Step 204: issue in the process of MBMS business datum to the base station at RNC, RTC control information transmission and MBMS business datum, NRTC is control information transmission only.
Step 205: the base station copies to each NRTC with the MBMS business datum of RTC.
Step 206: the base station comprises RTC and each NRTC by each common signal channel, sends the MBMS business datum to each sub-district respectively.
It more than is the operation flow of normal condition.When the channel situation change, break down, increase or delete one or more common signal channel as channel, then RNC resets RTC and NRTC according to the channel situation after upgrading, and carries out above-mentioned steps 201～step 206 successively one time.
Therefore present embodiment need make amendment to existing 3GPP protocol contents owing to the interactive instruction MCSUC between a newly-increased RNC and the base station.
Second embodiment does not need to revise the existing protocol of 3GPP, and RNC is provided with RTC and NRTC in common signal channel, and by set RTC and the NRTC informing base station of user's maintenance console RNC, the base station disposes RTC and NRTC in view of the above in advance; When carrying out the MBMS business, RNC is issued to the base station by RTC with the MBMS business datum, and the base station copies to NRTC with the MBMS business datum by RTC, and sends the MBMS business datum by each channel to the sub-district.
The operation flow of present embodiment comprises the steps: as shown in Figure 3
Step 301:RNC is in the common signal channel of each sub-district, and specifying a common signal channel is RTC, and the channel logo of this common signal channel is set to RTC-ID, and the cell id at this common signal channel place is set to RC-ID; Specifying one or more common signal channels is NRTC, and the cell id at the channel logo of each specified common signal channel and this common signal channel place is set to NRTC-ID and NRC-ID respectively, notices that the NRTC-ID of different N RTC and the value of NRC-ID have nothing in common with each other each other here; This step promptly is provided with RTC and NRTC by RNC.
Step 302: RTC-ID that maintenance console is set with RNC and RC-ID and one or more NRTC-ID and NRC-ID informing base station.
Step 303: the base station is according to the sign of each common signal channel and from the notice of maintenance console, with channel logo is that RTC-ID, cell id are that the common signal channel of RC-ID is appointed as RTC, is that NRTC-ID, cell id are that the common signal channel of NRC-ID is appointed as NRTC with channel logo.This step is promptly by base station configuration RTC and NRTC.
Step 304:RNC is by RTC control information transmission and MBMS business datum, by NRTC control information transmission only
Step 305: the base station copies to each NRTC with the MBMS business datum of RTC.
Step 306: the base station sends the MBMS business datum to each sub-district respectively by each common signal channel.
It more than is the operation flow of normal condition.When the channel situation change, break down, increase or delete one or more common signal channel as channel, RNC can reset RTC and NRTC according to the channel situation after upgrading; Warning message is sent to maintenance console in the base station, with this advisory attendant; So that the timely informing base station of maintenance console reconfigures RTC and NRTC, and carry out above-mentioned steps 301～step 306 successively one time.
In the step 302, maintenance console also can be with the cell id RC-ID of sub-district, RTC place and the cell id NRC-ID informing base station at NRTC place, then in the step 303 base station according to the corresponding relation configuration RTC and the NRTC of cell id and common signal channel.
It should be recognized by those skilled in the art that the inventive method and realize in the process of MBMS business, also can be applicable to other single-points in the unidirectional multimedia service of multiple spot except being applied to.And the system that the inventive method was suitable for can also comprise other wireless communication systems except the WCDMA system, as code division multiplexing (CDMA) system, CDMA2000 system, time division synchronous code division multiplexing (TD-SCDMA) etc.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method that improves interface bandwidth utilance between base station and the base station controller is characterized in that, this method comprises the steps:
A, base station controller are in each district common channel, and it is reference channel that a common signal channel is set, and it is non-reference channel that one or one or more common signal channel are set, and sends business datum by reference channel to the base station;
B, base station copy to each non-reference channel with the business datum that is received from reference channel, and by each common signal channel business datum are sent to each sub-district.
2, method according to claim 1 is characterized in that, after described designated reference channel of steps A and the non-reference channel, this method further comprises:
A1, base station controller send the signaling of configurating channel to the base station; The base station is according to this signaling configuration reference channel and non-reference channel.
3, method according to claim 2 is characterized in that, comprises the sign of reference channel and the sign of one or more non-reference channels in the steps A 1 described signaling;
Steps A 1 described configuration reference channel with non-reference channel is: identify the channel identical with reference channel sign in the signaling and be set to reference channel, the channel that sign is identical with non-reference channel sign in the signaling is set to non-reference channel.
4, method according to claim 1 is characterized in that, before the described steps A, this method further comprises:
Maintenance console sends to the base station with the sign of reference channel and the sign of one or more non-reference channels;
Step B is described duplicate before, this method further comprises:
The base station identifies the channel identical with the reference channel sign and is set to reference channel, and the channel that sign is identical with non-reference channel sign is set to non-reference channel.
5, method according to claim 1 is characterized in that, before the described steps A, this method further comprises:
Maintenance console sends to the base station with cell id RC-ID and one or more non-reference channel places cell id NRC-ID at reference channel place;
Step B is described duplicate before, this method further comprises:
The base station disposes reference channel and non-reference channel according to the corresponding relation of receiving cell id RC-ID and NRC-ID and cell id and channel.
6, according to claim 3 or 4 described methods, it is characterized in that the sign of described reference channel comprises: the channel logo RTC-ID and the RC-ID of reference channel;
The sign of non-reference channel comprises: the channel logo NRTC-ID and the NRC-ID of non-reference channel.
According to each described method of claim 1 to 5, it is characterized in that 7, when the configuration of common channel situation changed, this method further comprised:
Configurating channel signaling after base station controller will upgrade sends to the base station; The base station reconfigures reference channel and non-reference channel according to the signaling of receiving.
According to each described method of claim 1 to 5, it is characterized in that 8, when the configuration of common channel situation changed, this method further comprises: warning message was sent to maintenance console in the base station.
According to each described method of claim 1 to 5, it is characterized in that 9, it is to send by Iub interface that described base station controller sends business datum to the base station.
According to each described method of claim 1 to 5, it is characterized in that 10, described business datum is a multimedia broadcast/multi broadcast MBMS business datum.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100570335A CN100461744C (en) | 2006-03-13 | 2006-03-13 | Method for improving interface broad band availability between base station and base station controller |
| PCT/CN2007/000016 WO2007104207A1 (en) | 2006-03-13 | 2007-01-04 | Method and system for downlink transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100570335A CN100461744C (en) | 2006-03-13 | 2006-03-13 | Method for improving interface broad band availability between base station and base station controller |
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| CN1859269A true CN1859269A (en) | 2006-11-08 |
| CN100461744C CN100461744C (en) | 2009-02-11 |
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| WO (1) | WO2007104207A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101193344B (en) * | 2007-01-10 | 2011-10-26 | 中兴通讯股份有限公司 | Transmission method for multicast broadcast program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2308173C2 (en) * | 2002-09-23 | 2007-10-10 | Эл Джи Электроникс Инк. | Radiocommunication circuit for providing multimedia broadcasting and multi-address services |
| CN1499851A (en) * | 2002-11-05 | 2004-05-26 | 北京三星通信技术研究有限公司 | Method for sharing services in multimedia broadcast and multicast through Iub interface in mobile communication system |
| BRPI0412468A (en) * | 2003-07-11 | 2006-09-19 | Qualcomm Inc | dynamic direct link shared channel for a wireless communication system |
| CN1268089C (en) * | 2004-07-26 | 2006-08-02 | 华为技术有限公司 | Method for multi-media broadcasting/grouped player service data transmission |
-
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- 2006-03-13 CN CNB2006100570335A patent/CN100461744C/en active Active
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101193344B (en) * | 2007-01-10 | 2011-10-26 | 中兴通讯股份有限公司 | Transmission method for multicast broadcast program |
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| Publication number | Publication date |
|---|---|
| CN100461744C (en) | 2009-02-11 |
| WO2007104207A1 (en) | 2007-09-20 |
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