CN101039502A - Method and system for configuring multi-carrier frequency in MBMS - Google Patents
Method and system for configuring multi-carrier frequency in MBMS Download PDFInfo
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- CN101039502A CN101039502A CNA2007100736710A CN200710073671A CN101039502A CN 101039502 A CN101039502 A CN 101039502A CN A2007100736710 A CNA2007100736710 A CN A2007100736710A CN 200710073671 A CN200710073671 A CN 200710073671A CN 101039502 A CN101039502 A CN 101039502A
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Abstract
The present invention provides a method of providing multi-carrier frequency in the MBMS. In the time division synchronous code division multiple access system, the common terrestrial wireless access network broadcasts the MBMS channel configuration information to the user equipment, and provides the frequency point information of the SCCPCH channel for carrying the MBMS business channel in the MBMS channel configuration information; the user equipment obtains the carrier frequency where the SCCPCH locates, based on the frequency point information. Application of the present invention, can realize the multi-carrier frequency configuration by the the frequency point information. the frequency can be achieved through multi-point distribution of the information contained frequency. The present invention also discloses a system applying this method at the same time.
Description
Technical field
The present invention relates to field of mobile communication, relate in particular in a kind of wireless communication field TD SDMA (TD-SCDMA) system and be the method for multimedia broadcast-multicast service (MBMS, Multimedia Broadcast Multicast Service) distributing radio resource.
Background technology
Along with popularizing of large-screen multi-functional mobile phone, the application of mobile data services more and more widely no longer is satisfied with phone, message and surfing Internet with cell phone browse service etc. to the demand of mobile communication.Because the fast development of Internet, a large amount of multimedia services emerge.Various high bandwidth multimedia services, constantly occur as video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., satisfy the business demand that the mobile subscriber constantly rises on the one hand, also bring new business growth point simultaneously for mobile operator.These mobile multi-media services require a plurality of users can receive identical data simultaneously, compare with general data, have characteristics such as data volume is big, longer duration, delay sensitive.
In order to effectively utilize mobile network resource, 3GPP has proposed multimedia broadcasting and multicast service (being MBMS), in the mobile network, provide a data source to send the point-to-multipoint service of data to a plurality of users, the realization Internet resources are shared, and improve the utilance of Internet resources (the especially Bao Gui interface resource of eating dishes without rice or wine).MBMS is a kind of shared network resource transmits data to a plurality of targets from a data source a technology.The MBMS of 3GPP definition can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can also realize the multicast and the broadcasting of high-speed multimedia business, multiple rich video, audio frequency and multimedia service are provided, this has complied with the trend of following mobile data development undoubtedly, for the development of 3G provides better professional prospect.
In the configuration of radio bearer, MBMS can adopt the bearer types of P-T-M (put multiple spot, also can write a Chinese character in simplified form PTM or ptm) and P-T-P (point-to-point also can be write a Chinese character in simplified form PT or ptm).The PTM mode of MBMS uses common logical MTCH (MBMSPTM Traffic Channel, point multipoint message traffic channel) that all are added multicast service or the interested UE of broadcasting service (User Equipment, subscriber equipment) is sent data; The MTCH logic channel is mapped to transmission channel FACH, sends at wave point by physical channel Sencondary CCPCH (SCCPCH, less important Common Control Physical Channel).System side RNC (Radio Network Controller, radio network controller) informs the configuration informations such as physical channel of the relevant MBMS business configuration of UE by the MCCH channel.
UTRAN (universal land radio access web) carries out the relevant system information broadcast of MBMS in system message SIB5 (or SIB5bis), it mainly is MCCH (MBMSpoint-to-multipoint Control Channel, MBMS PTM control channel) configuration information.MCCH is a logic channel, be used for the control information of MBMS transmission business, the MBMS business control information comprises: MBMS Access Information (MBMS access information), MBMS Common p-t-m rb Information (the public point to multi-point wireless beared information of MBMS), MBMS Current Cell p-t-m rb Information (MBMS current area P-T-M wireless loading information), MBMS General Information (MBMS general information), MBMS Modified services Information (MBMS revises business information), MBMS Unmodified services Information (MBMS does not revise business information) or the like.
Above MBMS control messages has defined the professional and MBMS service logical channels MTCH of MBMS of PTM send mode, the mapping relations of transmission channel FACH and physical channel SCCPCH, and the specific definition of each information of carrying MBMS business.Especially, the MBMS control messages is such to the definition mechanism of physical channel: 1, in the PhyCh information of MBMSCommon p-t-m rb Information message tabulation, defined the configuration information of one group of physical channel SCCPCH, comprise distributed time slot, channel code, each SCCPCH configuration of definition all has been assigned with a sign PhyCh identity in the PhyCh Information tabulation.2, in message MBMS Current Cell p-t-m rb Information, comprise a tabulation S-CCPCH list, each has defined the mapping relations of configuration identifier, this SCCPCH and transmission channel FACH and the logic channel of concrete physical channel SCCPCH sign, SCCPCH in this tabulation.SCCPCH configuration identifier in this table is used to index the list item of the PhyCh information tabulation of MBMS Common p-t-m rb Information message, shows that the configuration that physical channel SCCPCH is quoted is which the concrete public SCCPCH configuration information that defines in the MBMS Commonp-t-m rb Information message.
Above-mentioned in MBMS Common p-t-m rb Information message definition physical channel SCCPCH common configuration, the method of SCCPCH common configuration is quoted in actual SCCPCH definition in MBMS Current Cell p-t-m rb Information, it is a to realize that identical SCCPCH configuration only sends, and same public SCCPCH configuration information is quoted in the SCCPCH of a plurality of reality definition.Like this, can save the size of message that sends at the MCCH channel, to saving radio channel resource, the quickening user terminal receives required MBMS control messages bigger help.
In TD SDMA (TD-SCDMA) system, a sub-district can dispose a plurality of carrier frequency.Like this in the TD-SCDMA system, Radio Resource can be with following configuration definition: frequency, time slot, channel code.
But in the agreement of existing 3GPP, be not defined in the employed frequency point information of SCCPCH of carrying MBMS Traffic Channel in the TD-SCDMA system, therefore can't satisfy the demand of MBMS business.
Summary of the invention
The object of the present invention is to provide a kind ofly in the TD-SCDMA multi-carrier frequency cell, to be embodied as the MBMS allocating multiple carrier-frequency, thereby remedy the disappearance of this technology in the prior art by mode for the SCCPCH channel configuration frequency point information of carrying MBMS business.
One aspect of the present invention provides the method for allocating multiple carrier-frequency among a kind of MBMS, in TDS-CDMA system, universal land radio access web is provided as the frequency point information of the SCCPCH channel of carrying MBMS Traffic Channel to subscriber equipment broadcasting MBMS channel configuration message in described MBMS channel configuration message; Described subscriber equipment obtains the carrier frequency at described SCCPCH place according to described frequency point information.
Preferably, described MBMS channel configuration message is MBMS Current Cell p-t-m rbInformation message.
Preferably, described frequency point information is the integer value that a multiple value of the frequency values of carrier frequency or this frequency values or be used for indexes the list of frequency of MCCH message or system broadcast information definition, and this list of frequency comprises the carrier frequency frequency that need set up the MBMS business.
Preferably, in described MBMS Current Cell p-t-m rb Information message, be the frequency point information at the SCCPCH place of each increase cell indication list item definition among its tabulation S-CCPCH in SIB type 5 that comprises.
Preferably, described frequency point information is an option.
The present invention provides the system of allocating multiple carrier-frequency among a kind of MBMS on the other hand, in TDS-CDMA system, universal land radio access web comprises to the unit of subscriber equipment broadcasting MBMS channel configuration message, is provided as the frequency point information of the SCCPCH channel of carrying MBMS Traffic Channel in described MBMS channel configuration message; Described subscriber equipment also comprises the unit that obtains the carrier frequency at described SCCPCH place according to described frequency point information.
Preferably, described MBMS channel configuration message is MBMS Current Cell p-t-m rbInformation message.
Preferably, described frequency point information is the integer value that a multiple value of the frequency values of carrier frequency or this frequency values or be used for indexes the list of frequency of MCCH message or system broadcast information definition, and this list of frequency comprises the carrier frequency frequency that need set up the MBMS business.
Preferably, in described MBMS Current Cell p-t-m rb Information message, be the frequency point information at the SCCPCH place of each increase cell indication list item definition among its tabulation S-CCPCH in SIB type 5 that comprises.
Preferably, described frequency point information is an option.
Implement technique scheme, can realize following beneficial effect:
1, owing to disposed frequency point information, in the TD-SCDMA system, the SCCPCH channel of carrying MBMS business can be defined on any one carrier frequency of sub-district.
2, in a preferred embodiment of the invention, promptly in MBMS Current Cell p-t-m rbInformation message, carry described frequency point information.Thus, the public SCCPCH configuration information that defines among the carrier frequency of concrete SCCPCH channel and the MBMS Common p-t-m rb Information is separate information, like this, in concrete configuration, if on different carrier frequency, defined different SCCPCH channels, and these SCCPCH channels are except frequency point information, and information such as its time slot, channel code are all thought usefulness.In this case, in MBMS Common p-t-m rb Information, only need public SCCPCH configuration information of definition to share for these SCCPCH.The a plurality of concrete SCCPCH of definition in MBMS Current Cellp-t-m rb Information, these a plurality of concrete SCCPCH definition comprise a mutual different frequency point information, and all point to that SCCPCH configuration information of sharing among the MBMSCommon P-T-M RB Information.Like this, can save the amount of information that on the MCCH channel, sends greatly.That is to say that the SCCPCH configuration information in frequency point information and the MBMS Common p-t-m rb information message is separate, helps reducing MBMS control messages length.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structure chart of the system of allocating multiple carrier-frequency among a kind of MBMS provided by the invention;
The flow chart of the method for allocating multiple carrier-frequency among Fig. 2 a kind of MBMS provided by the invention.
Embodiment
With reference to figure 1, illustrate the structure of the system of allocating multiple carrier-frequency among a kind of MBMS provided by the invention.Realize the MBMS business in the TD-SCDMA system, UTRAN is responsible for to UE broadcasting or multicast information as Access Network.As shown in the figure, UTRAN comprises a radio unit, is used for to UE broadcasting MBMS channel configuration message, is provided as the frequency point information of the SCCPCH channel of carrying MBMS Traffic Channel in described MBMS channel configuration message; Described UE comprises acquiring unit, is used for obtaining according to described frequency point information the unit of the carrier frequency at described SCCPCH place.
What deserves to be explained is that described UE is at least one, that is to say that the corresponding relation of access network equipment and UE is a many-one relationship.In addition, the execution mode of described unit can be software, hardware or firmware, is preferably software, promptly realizes by newly-increased or change functional module on the software systems of RNC and UE.Therefore the process prescription of the method for the present invention that describes below when promptly to be system of the present invention with the form of software implement, be equal to description to system to the description of method.
With reference to figure 2, illustrate the flow process of the method for allocating multiple carrier-frequency among a kind of MBMS provided by the invention.As shown in the figure, in the TD-SCDMA system, the present invention includes following steps:
201, UTRAN is to subscriber equipment broadcasting MBMS channel configuration message; Particularly, in MBMS Current Cell P-t-m rb Information message, among its tabulation S-CCPCH list that comprises each, increase the frequency point information at the SCCPCH place of cell indication list item definition.The concrete form of frequency point information that increases can have two kinds: 1, this frequency point information is the frequency values of carrier frequency or a multiple of frequency values, and is typical, is defined as the cell Frequency info of protocol definition.2, this frequency point information is an integer value, is used for indexing the list of frequency of MCCH message or system broadcast information definition, and this list of frequency has comprised the carrier frequency frequency that need set up the MBMS business.
Preferably, in MBMS Current Cell P-t-m rb Information message, among its tabulation S-CCPCH in SIB type 5 that comprises each, increase the frequency point information at the SCCPCH place of cell indication list item definition.
Preferably, the frequency point information that definition increases is an option, if this information does not appear in the message, expression physical channel SCCPCH is based upon main carrier frequency.
Following table promptly is the frequency point information (thickened portion) that increases in the following manner at MBMS Current Cell P-t-m rb Information
| Information unit/group name | The demand degree | Multicast range | Type and reference | Semantic description | Version |
| <maxSC CPCH> | type 5 or 5bis may carry MTCH | ||||
| >S-CCPCH identity | Integer (1..maxSC CPCH) | Index of the S-CCPCH within the list included in SIB type 5 or 5bis | REL-6 | ||
| >TrCH information list | MP | 1to <maxFA CHPCH> | List of FACH transport channels carrying one or more MTCH and optionally one MSCH | REL-6 | |
| >>TrCh identity | MP | Integer (1..maxFA CHPCH) | Index of the FACH within the list of TrChs defined for that S-CCPCH as included in SIB type 5 or 5bis | REL-6 | |
| >>RB information list | OP | 1to <maxRB perTrCh> | The IE is absent if this TrCh only carries MSCH | REL-6 | |
| >>>RB information | MP | MBMS p-t-m rb informatio n 10.3.9a.7a | REL-6 | ||
| >>MSCH configuration information | OP | MSCH configurati on informatio n 10.3.9a.16 | Included if the TrCH carries MSCH | REL-6 |
Because frequency point information is configured in the MBMS Current Cell P-t-m rb Information message, separate with the SCCPCH configuration information in the MBMS Common p-t-m rb information message, help reducing MBMS control messages length like this.
Step 202:UE can obtain the carrier frequency at a SCCPCH place by the frequency point information of above-mentioned increase by accepting MBMS Current Cell p-t-m rb Information message.For example the Secondary CCPCH info information unit by defining in the existing protocol indexes the public SCCPCH configuration information that defines among the MBMS Common P-T-M RB Information.Like this, UE can obtain complete SCCPCH definition.
In the above-described embodiments, for each list item of tabulation S-CCPCH list increases frequency point information Frequency, the carrier frequency that the SCCPCH channel of indication list item definition uses.The original cell S-CCPCH of this message identity points to the PhyCh information list item among the MBMS Common p-t-m rb Information, the SCCPCH configuration information of indicating this SCCPCH channel to use, comprise the time slot that this channel uses, configurations such as channel code.
In a preferred embodiment of the present invention, under the customized configuration situation, method provided by the invention is from saving the configuration of message size angle: a cell configuration 3 carrier frequency, at the SCCPCH channel of a carrying of the 4 time slot configuration MBMS of each carrier frequency business.And, configurations except that frequency such as the time slot of these 3 SCCPCH channels, channel code are all identical, then following configuration in the message: 1, public SCCPCH configuration of definition among the tabulation PhyCh information in MBMS Common P-t-m rb Information, its PhyChidentity is 1, its cell Secondary CCPCH info MBMS defines time slot, physical channel configuration information such as channel code.2, among the tabulation S-CCPCH list in message MBMS Current Cell P-t-m rbInformation, define 3 SCCPCH, its S-CCPCH identity is respectively 1,2,3.Its Frequency identity is 3 SCCPCH carrier frequency at place respectively.Its Secondary CCPCH info value is 1, that is to say, and public SCCPCH configuration among the identical MBMS Common P-T-M RB Information of these 3 SCCPCH Channel Sharing, its PhyCh identity is 1.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and 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 (10)
1, the method for allocating multiple carrier-frequency among a kind of MBMS, in TDS-CDMA system, universal land radio access web is to subscriber equipment broadcasting MBMS channel configuration message, it is characterized in that, in described MBMS channel configuration message, be provided as the frequency point information of the SCCPCH channel of carrying MBMS Traffic Channel; Described subscriber equipment obtains the carrier frequency at described SCCPCH place according to described frequency point information.
2, the method for allocating multiple carrier-frequency among the MBMS according to claim 1 is characterized in that described MBMS channel configuration message is MBMS Current Cell p-t-m rbInformation message.
3, the method for allocating multiple carrier-frequency among the MBMS according to claim 1 and 2, it is characterized in that, described frequency point information is the integer value that a multiple value of the frequency values of carrier frequency or this frequency values or be used for indexes the list of frequency of MCCH message or system broadcast information definition, and this list of frequency comprises the carrier frequency frequency that need set up the MBMS business.
4, the method for allocating multiple carrier-frequency among the MBMS according to claim 2, it is characterized in that, in described MBMS Current Cell p-t-m rb Information message, be the frequency point information at the SCCPCH place of each increase cell indication list item definition among its tabulation S-CCPCH in SIB type 5 that comprises.
5, the method for allocating multiple carrier-frequency among the MBMS according to claim 1 is characterized in that, described frequency point information is an option.
6, the system of allocating multiple carrier-frequency among a kind of MBMS, in TDS-CDMA system, universal land radio access web comprises the unit to subscriber equipment broadcasting MBMS channel configuration message, it is characterized in that, in described MBMS channel configuration message, be provided as the frequency point information of the SCCPCH channel of carrying MBMS Traffic Channel; Described subscriber equipment also comprises the unit that obtains the carrier frequency at described SCCPCH place according to described frequency point information.
7, the system of allocating multiple carrier-frequency among the MBMS according to claim 6 is characterized in that described MBMS channel configuration message is MBMS Current Cell p-t-m rbInformation message.
8, according to the system of allocating multiple carrier-frequency among claim 6 or the 7 described MBMS, it is characterized in that, described frequency point information is the integer value that a multiple value of the frequency values of carrier frequency or this frequency values or be used for indexes the list of frequency of MCCH message or system broadcast information definition, and this list of frequency comprises the carrier frequency frequency that need set up the MBMS business.
9, the system of allocating multiple carrier-frequency among the MBMS according to claim 7, it is characterized in that, in described MBMS Current Cell p-t-m rb Information message, be the frequency point information at the SCCPCH place of each increase cell indication list item definition among its tabulation S-CCPCH in SIB type 5 that comprises.
10, the system of allocating multiple carrier-frequency among the MBMS according to claim 7 is characterized in that, described frequency point information is an option.
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| CN2007100736710A CN101039502B (en) | 2007-03-22 | 2007-03-22 | Method and system for configuring multi-carrier frequency in MBMS |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431717B (en) * | 2007-11-06 | 2011-07-20 | 中兴通讯股份有限公司 | Cell search method of multimedia broadcast/multicast service special carrier frequency |
| CN103929292B (en) * | 2008-09-22 | 2017-07-14 | 太阳专利信托公司 | Communication device and communication method |
| CN110463273A (en) * | 2017-03-16 | 2019-11-15 | Lg电子株式会社 | The equipment for determining the method for the validity of system information block and supporting this method |
-
2007
- 2007-03-22 CN CN2007100736710A patent/CN101039502B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431717B (en) * | 2007-11-06 | 2011-07-20 | 中兴通讯股份有限公司 | Cell search method of multimedia broadcast/multicast service special carrier frequency |
| CN103929292B (en) * | 2008-09-22 | 2017-07-14 | 太阳专利信托公司 | Communication device and communication method |
| CN110463273A (en) * | 2017-03-16 | 2019-11-15 | Lg电子株式会社 | The equipment for determining the method for the validity of system information block and supporting this method |
| US11191006B2 (en) | 2017-03-16 | 2021-11-30 | Lg Electronics Inc. | Method for determining validity of system information block and apparatus supporting same |
| CN110463273B (en) * | 2017-03-16 | 2022-04-12 | Lg电子株式会社 | Method for determining validity of system information block and apparatus supporting the same |
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| CN101039502B (en) | 2012-12-05 |
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