CN101296394A - Method and equipment for providing MBMS service for multi-carrier frequency community in wireless communication system - Google Patents
Method and equipment for providing MBMS service for multi-carrier frequency community in wireless communication system Download PDFInfo
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- CN101296394A CN101296394A CNA2007101036335A CN200710103633A CN101296394A CN 101296394 A CN101296394 A CN 101296394A CN A2007101036335 A CNA2007101036335 A CN A2007101036335A CN 200710103633 A CN200710103633 A CN 200710103633A CN 101296394 A CN101296394 A CN 101296394A
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Abstract
The invention provides a method for providing an MBMS for a multiple carrier frequency cell in a wireless communication system. When a universal terrestrial radio access network in the wireless communication system provides the MBMS for the multiple carrier frequency cell, 1. all frequency lists carrying MBMS are broadcasted in a system broadcast message or in a first MBMS message carried by MCCH; 2. all index numbers of the carrier frequencies of a physical channel with radio bearer in the frequency list are broadcasted in the radio bearer message of a second MBMS message carried by MCCH. By applying the invention, the carrier frequency message of the MBMS in a PTM mode can be broadcasted in a TD-SCDMA multiple carrier frequency cell system. Meanwhile, the invention also provides a system for applying the method.
Description
Technical field
The present invention relates to wireless communication technique, relate in particular to that multi-carrier district provides MBMS (Multimedia Broadcast/Multicast Service, multimedia broadcasting and multicast) professional method and apparatus in a kind of TD-SCDMA system.
Background technology
People no longer are satisfied with phone and messaging service to the demand of mobile communication now, and along with the fast development of Internet net, a large amount of multimedia services emerge.The some of them applied business, a plurality of users can receive identical data simultaneously, as video request program, television broadcasting, video conference, online education, interactive game etc.
In order to satisfy the ever-increasing demand in mobile communication market, the power system capacity that improves hot zones covers, the multi-carrier frequency cell notion of TD-SCDMA system is that a plurality of sub-districts of identical geographical coverage area (each carrier frequency is a sub-district) is merged together, share same set of common channel resources, thereby constitute a multi-carrier frequency cell.In actual networking, use multi-carrier frequency cell, not only on RRM, reduced complexity, and the main carrier frequency of neighbor cell is configured on the different frequencies, not only can reduce the interference of pilot channel and common signal channel effectively, but also can reduce requirement effectively, thereby can guarantee to carry out networking with flexible way more to the base station acc power.
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, provide MBMS also to become an active demand.Organize the agreement of 3GPP according to global standardsization to the MBMS business, the MBMS business is at UTRAN (Universal Terrestrial Radio Access Network, universal land radio access web) and UE (User Equipment, dual mode is arranged: PTM (Point-to-Multipoint when transmitting subscriber equipment), point-to-multipoint) mode and PTP (Point-to-Point, point-to-point) mode.The PTM mode uses common logical MTCH (MBMS PTM Traffic Channel, MBMS point multipoint message traffic channel) that all are added multicast service or the interested UE of broadcasting service is sent data; The PTP mode then uses dedicated logical channel (DTCH) that single UE is sent business datum.When adding multicast service or when big, using the PTM mode can effectively utilize wireless network resource undoubtedly, cut operating costs widely to the interested UE number of broadcasting service.
Can there be serious co-channel interference when in the TD-SCDMA multi-carrier frequency system, providing MBMS professional.Logic channel MTCH under the MBMS PTM mode is mapped to transmission channel FACH, and finally is carried on the SCCPCH public physic channel.Public physic channel SCCPCH uses omni-directional antenna transmission.While MBMS business is the mobile TV service of high speed normally, takies many code channels.Like this, when using the SCCPCH channel of omni-directional antenna transmission to carry out the continuous covering of MBMS business, can cause serious minizone co-channel interference, make service quality can not get ensureing in many sub-districts.
The problem of co-channel interference of minizone during for the solution identical networking, a kind of network-building method are that all sub-districts use same carrier, time slot, channel code, scrambler and basic training sequences sign indicating number (midamble) to send the wireless signal of identical MBMS business channels.Like this, UE can be considered as multipath signal with the signal that comes from different base station, makes to obtain big performance gain when the receiving broadcast service signal, improves the service quality of MBMS business.This method can improve the broadcasting service availability of frequency spectrum, and the realization of UE side is also comparatively simple simultaneously.
According to the agreement of 3GPP to the MBMS business, UTRAN carries out the relevant system information broadcast of MBMS in system message SIB5 (or SIB5bis), mainly be the radio bearer configuration parameter and the MCCH schedule information of logic channel MCCH (MBMS point-to-multipoint Control Channel, MBMS PTM control channel).Can only there be a MCCH each sub-district.MCCH is mainly used to broadcast cell MBMS business information and PTM radio bearer configuration information.Message on the MCCH channel comprises: MBMS Access Information, MBMS General Information, MBMS Common p-t-m RB Information, MBMS Current Cell p-t-m RB Information, MBMS Neighbouring Cellp-t-m RB Information, MBMS Modified Services Information, MBMSUnmodified Services Information or the like.When TD-SCDMA multi-carrier district system uses above-mentioned network-building method, need in the MCCH of sub-district information, carry the frequency information of MBMS physical channel.And do not provide the technology of how to carry and where carrying in present agreement and the prior art.
Summary of the invention
The objective of the invention is to provide a kind of method that the MBMS business is provided in the TD-SCDMA multi-carrier frequency cell, concrete is will a kind of frequency parameter configuration under MBMS PTM pattern broadcasting method be applied in the MBMS business, thereby in the solution prior art multi-carrier district of TD-SCDMA provide can't be in the technical problem of the configuration frequency parameter under the MBMS PTM pattern in the MBMS business.
One aspect of the present invention provides multi-carrier frequency cell in a kind of wireless telecommunication system that the method for MBMS business is provided, universal land radio access web in the described wireless telecommunication system is when providing MBMS professional to multi-carrier frequency cell, a. broadcasts the list of frequency that all carry MBMS in system broadcast message or in the MBMS message of MCCH carrying; B. broadcast the call number of physical channel carrier frequency in described list of frequency of all radio bearers in the radio bearer information in the 2nd MBMS message of MCCH carrying.
Preferably, described system broadcast message is SIB11 (or SIB11bis).The one MBMS message of described MCCH carrying is MBMS General Information or MBMSCommon p-t-m RB Information or MBMS Current Cell PTM RBInformation.
Preferably, described the 2nd MBMS message is MBMS Common p-t-m RBInformation or MBMS Current Cell PTM RB Information or MBMSNeighbouring Cell PTM RB Information.
Preferably, the call number of physical channel carrier frequency in described list of frequency of described all radio bearers is included in the newly-increased cell of its message of carrying.
The present invention provides multi-carrier frequency cell in a kind of wireless telecommunication system that the equipment of MBMS business is provided on the other hand, described equipment comprises: first radio unit is used for system broadcast message and is SIB11 (or SIB11bis) or at the list of frequency of all carrying MBMS of MBMS message broadcasting of MCCH carrying; Second radio unit is used for broadcasting the call number of physical channel carrier frequency in described list of frequency of all radio bearers in the radio bearer information of the 2nd MBMS message that MCCH carries.
Preferably, described system broadcast message is SIB11 (or SIB11bis).A described MBMS message is MBMS General Information or MBMS Common p-t-mRB Information or MBMS Current Cell PTM RB Information.
Preferably, described the 2nd MBMS message is MBMS Common p-t-m RBInformation or MBMS Current Cell PTM RB Information or MBMSNeighbouring Cell PTM RB Information.
Preferably, the call number of physical channel carrier frequency in described list of frequency of described all radio bearers is included in the newly-increased cell of its message of carrying.
Adopt the method for the invention and equipment, can in a TD-SCDMA multi-carrier frequency cell system, broadcast the carrier frequency information of the MBMS business under the PTM pattern.No matter which kind of Radio Resource control (RRC) state UE is in, UE all can obtain the carrier frequency information of the MBMS business of its activation or adding by receiving system broadcast and MCCH channel massage.This method and additive method are compared, and can save the required byte of MCCH message greatly, improve the wireless resource utility efficiency of air interface.
Description of drawings
Fig. 1 provides the structure chart of the equipment of MBMS business for multi-carrier frequency cell in a kind of wireless telecommunication system provided by the invention;
Fig. 2 provides the data flowchart of the method for MBMS business for multi-carrier frequency cell in a kind of wireless telecommunication system provided by the invention.
Embodiment
With reference to figure 1, illustrate the structure that multi-carrier frequency cell in a kind of wireless telecommunication system provided by the invention provides the equipment of MBMS business.As shown in the figure, described equipment is the UTRAN access network equipment, and described equipment comprises: first radio unit is used for the list of frequency of all carrying MBMS of broadcasting in system broadcast message or the MBMS message in MCCH carrying; Second radio unit is used for broadcasting the call number of physical channel carrier frequency in described list of frequency of all radio bearers in the radio bearer information of the 2nd MBMS message that MCCH carries.The broadcast message of this equipment is to broadcast to UE.
What deserves to be explained is that the unit of equipment provided by the present invention can be implemented by the mode of software, hardware or firmware.Software mode preferably, promptly the flow process by revising prior art, increase mode such as cell and realize that the method for introducing below of the present invention promptly is the implementation process of this mode.Therefore, the step of the method for introducing below is corresponding to the unit of equipment of the present invention, to the same suitable device of the introduction of method.
With reference to figure 2, illustrate the data flow that multi-carrier frequency cell in a kind of wireless telecommunication system provided by the invention provides the method for MBMS business.Press 3GPP agreement broadcasting MBMS system information in system message SIB5 or SIB5bits, comprise radio bearer configuration parameter and the MCCH schedule information of MCCH in the described system message.Particularly, the radio bearer configuration parameter and the MCCH schedule information that in the cell " Secondary CCPCH system information " of SIB5 or " Secondary CCPCH systeminformation MBMS ", comprise MCCH.
As shown in the figure, this method provided by the invention, the universal land radio access web in the wireless telecommunication system provides following service when providing MBMS professional to multi-carrier frequency cell:
201. be SIB11 (or SIB11bis) or in a MBMS message of MCCH carrying, broadcast the list of frequency that all carry MBMS in system broadcast message.In a preferred embodiment of the invention, a described MBMS message is MBMS GeneralInformation or MBMS Common p-t-m rb InformatioN or MBMSCurrent Cell PTM RB Information.Particularly, in MBMS GeneralInformation or MBMS Common p-t-m rb InformatioN message, increase a cell " MBMS Frequency Information " newly, list in this cell might carry the frequency of MBMS business.For example: MBMS Frequency Information cell format is as follows:
This information unit of MBMS Frequency Information list might carry the frequency of MBMS business
| Information Element/Group name (information unit) | Need (necessity) | Multi (many) | Type and reference type and reference | Semantics description (note) | Version (version) |
| MBMS frequency list | MP |
| (MBMS list of frequency) | (essential) | ||||
| ＞Frequency info (frequency information) | Frequency info |
202. the call number of physical channel carrier frequency in described list of frequency of all radio bearers of broadcasting in the radio bearer information in the 2nd MBMS message of MCCH carrying.In a preferred embodiment of the invention, described the 2nd MBMS message is MBMS Commonp-t-m RB Information or MBMS Current Cell PTM RB Information or MBMS Neighbouring Cell PTM RB Information.Particularly, the call number of physical channel carrier frequency in " MBMS Frequency Information " list of frequency of all RB of broadcasting in radio bearer (RB) information of MBMSCommon p-t-m RB Information message.In the cell " Secondary CCPCH Info MBMS " of MBMS Common p-t-m RB Information message, increase cell " Frequency index " newly, a certain item in this cell index cell " MBMS Frequency Information " list of frequency.
Adopt the method for the invention and equipment, can in a TD-SCDMA multi-carrier frequency cell system, broadcast the carrier frequency information of the MBMS business under the PTM pattern.No matter which kind of Radio Resource control (RRC) state UE is in, UE all can obtain the carrier frequency information of the MBMS business of its activation or adding by receiving system broadcast and MCCH channel.This method and additive method are compared, and can save the required byte of MCCH message greatly, improve the wireless resource utility efficiency of air interface.
The preferred embodiment that the cited embodiment of the present invention is adopted when only specifically implementing for explanation the present invention; be not the restriction scope that the present invention protected, therefore all technical schemes that claim limited that propose according to the present invention belong to the claimed row of the present invention entirely.
Claims (8)
1. multi-carrier frequency cell provides the method for MBMS business in the wireless telecommunication system, it is characterized in that, the universal land radio access web in the described wireless telecommunication system when providing MBMS professional to multi-carrier frequency cell,
A. in system broadcast message or in a MBMS message of MCCH carrying, broadcast the list of frequency of all carrying MBMS;
B. broadcast the call number of physical channel carrier frequency in described list of frequency of all radio bearers in the radio bearer information in the 2nd MBMS message of MCCH carrying.
2. multi-carrier frequency cell provides the method for MBMS business in the wireless telecommunication system as claimed in claim 1, it is characterized in that, described system broadcast message is SIB 11 or SIB 11bis, and a described MBMS message is MBMS General Information or MBMSCommon p-t-m rb InformatioN or MBMS Current Cell PTM RBInformation.
3. multi-carrier frequency cell provides the method for MBMS business in the wireless telecommunication system as claimed in claim 1, it is characterized in that described the 2nd MBMS message is MBMS Commonp-t-m rb InformatioN or MBMS Current Cell PTM RB Information or MBMS Neighbouring Cell PTM RB Information.
4. multi-carrier frequency cell provides the method for MBMS business in the wireless telecommunication system as claimed in claim 1, it is characterized in that, the call number of physical channel carrier frequency in described list of frequency of described all radio bearers is included in the newly-increased cell of its message of carrying.
5. multi-carrier frequency cell provides the equipment of MBMS business in the wireless telecommunication system, it is characterized in that described equipment comprises:
First radio unit is used for broadcasting the list of frequency that all carry MBMS in system broadcast message or in a MBMS message of MCCH carrying;
Second radio unit is used for broadcasting the call number of physical channel carrier frequency in described list of frequency of all radio bearers in the radio bearer information of the 2nd MBMS message that MCCH carries.
6. multi-carrier frequency cell provides the equipment of MBMS business in the wireless telecommunication system as claimed in claim 5, it is characterized in that, described system broadcast message is SIB11 or SIB11bis, and a described MBMS message is MBMS General Information or MBMSCommon p-t-m rb InformatioN or MBMS Current Cell PTM RBInformation.
7. multi-carrier frequency cell provides the equipment of MBMS business in the wireless telecommunication system as claimed in claim 5, it is characterized in that described the 2nd MBMS message is MBMS Commonp-t-m rb InformatioN or MBMS Current Cell PTM RB Information or MBMS Neighbouring Cell PTM RB Information.
8. multi-carrier frequency cell provides the equipment of MBMS business in the wireless telecommunication system as claimed in claim 5, it is characterized in that, the call number of physical channel carrier frequency in described list of frequency of described all radio bearers is included in the newly-increased cell of its message of carrying.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101036335A CN101296394A (en) | 2007-04-29 | 2007-04-29 | Method and equipment for providing MBMS service for multi-carrier frequency community in wireless communication system |
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| CNA2007101036335A CN101296394A (en) | 2007-04-29 | 2007-04-29 | Method and equipment for providing MBMS service for multi-carrier frequency community in wireless communication system |
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| CNA2007101036335A Pending CN101296394A (en) | 2007-04-29 | 2007-04-29 | Method and equipment for providing MBMS service for multi-carrier frequency community in wireless communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602198A (en) * | 2011-09-30 | 2015-05-06 | 英特尔公司 | Multicast/broadcast service continuity in multi-carrier networks |
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2007
- 2007-04-29 CN CNA2007101036335A patent/CN101296394A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602198A (en) * | 2011-09-30 | 2015-05-06 | 英特尔公司 | Multicast/broadcast service continuity in multi-carrier networks |
| US9894608B2 (en) | 2011-09-30 | 2018-02-13 | Intel Corporation | Multicast/broadcast service continuity in multi-carrier networks |
| US11178613B2 (en) | 2011-09-30 | 2021-11-16 | Apple Inc. | Multicast/broadcast service continuity in multi-carrier networks |
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Open date: 20081029 |