CN1980468A - Method for noticing DCH UE first-choosing layer limit-information in MBMS business - Google Patents
Method for noticing DCH UE first-choosing layer limit-information in MBMS business Download PDFInfo
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- CN1980468A CN1980468A CNA2005101310203A CN200510131020A CN1980468A CN 1980468 A CN1980468 A CN 1980468A CN A2005101310203 A CNA2005101310203 A CN A2005101310203A CN 200510131020 A CN200510131020 A CN 200510131020A CN 1980468 A CN1980468 A CN 1980468A
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Abstract
This invention includes the following steps. (1) After receiving the 'conversation start' message, RNC confirms PL of all areas; decides not to offer non-MBMS business toward certain PLs according to their recent load situations. (2) Via DCCH channel, RNC sends 'business info has changed' message which includes the first choice layer info (FCL) and the first choice layer limitation info (FCLL). (3) According to FCL, FCLL and the priorities of all business, UE on the non-FCL makes decision if applying for being switched to FCL. Before deciding to switch to the first choice frequency, UE considers first if FCL supports the non-MBMS business. This prevents from occurring the following situation. UE starts a switching request. RCN finds that FCL does not support the non-MBMS business and notifies UE. UE remakes decision of switching. This invention reduces the unnecessary instructions and simplifies the UE processing.
Description
Technical field
The present invention relates to mobile communication, when particularly providing MBMS (multimedia broadcasting and multicast service) professional in the WCDMA mobile communication system, the method for notice CELL_DCH UE first-choosing layer limit-information.
Background technology
Multimedia broadcasting and multicast service (hereinafter to be referred as MBMS) are that a standardized new business is being carried out in third generation partner plan (hereinafter to be referred as 3GPP).The MBMS business is a kind of business of unidirectional point-to-multipoint, and the maximum characteristics of this business are that it can effectively utilize Radio Resource and Internet resources.
When providing MBMS professional,, introduced the notion of FLC (frequency layer convergence) in order to save resource.Promptly select some PL (first-selected layer) that the MBMS business preferentially is provided, and not necessarily on all frequencies, provide.UE will gravity treatment or switch on the first-selected layer in order to receive the MBMS business.
In order to support the frequency layer convergence, in standard, added following content at present:
1. comprise " FLC sign " in SGSN issues " session begins " of RNC, whether indication uses FLC for this session.If use FLC, need carry out following operation.
2. go up in " summary info " that sends at MCCH (MBMS control channel) and comprise " MBMS first choice frequency information " element." MBMS first choice frequency information " comprises the parameter that is used for the gravity treatment of FLC sub-district, and purpose is to allow the preferential gravity treatment of UE to first-selected layer.
3. go up the first-selected layer that comprises each business in " having changed professional information " and " the not professional information of change " that sends at MCCH (MBMS control channel).
First-selected layer when for example congested, may not supported non-MBMS business in some cases.RNC need send to UE with this first-choosing layer limit-information.Stipulated in the standard that RNC need send this information to UE under following several situation.
1. when setting up radio bearer for UE, if first-selected layer is not supported traditional business, RNC need be the UE Resources allocation on other layers, and in that " radio bearer is set up in the request information and comprised " first-choosing layer limit-information ".
2. when carrying out state exchange for UE, if first-selected layer is not supported traditional business, RNC need be the UE Resources allocation on other layers, and comprises " first-choosing layer limit-information " in " radio bearer reconfiguration request " or " physical channel is reshuffled " message.
3. when UE carries out cell update, if new sub-district be first-selected layer, and first-selected layer do not supported traditional business, and RNC can comprise " first-choosing layer limit-information " in " cell update affirmation " message.
UE thinks and does not support traditional business, the line frequency of going forward side by side selection course on the first-selected layer after receiving " first-choosing layer limit-information " under these several situations.
For the UE that receives non-MBMS business, when receiving first-selected layer of information,, need know on the first-selected layer whether support non-MBMS business in order to make the decision of whether choosing on the first-selected layer.In order to address this problem, following provisions have been done in the standard.
In " MBMS first choice frequency information ", comprise " first-choosing layer limit-information ".UE just can know by receiving MCCH whether first-selected layer supports non-MBMS business.
For the UE that is in the CELL_DCH state, may there be ability to receive MCCH, UE just has no idea to know on the first-selected layer whether support non-MBMS business like this.When this UE receives " having changed professional information " by DCCH (Dedicated Control Channel), wherein comprise " first-selected layer information ".At this moment UE has no idea to make the decision that the MBMS frequency is selected.
Summary of the invention
The method that the purpose of this invention is to provide a kind of notice CELL_DCH state UE " first-choosing layer limit-information ".
For achieving the above object, the method for noticing DCH UE first-choosing layer limit-information in a kind of MBMS business comprises step:
After RNC receives " session begins " message, determine the PL of each department, and determine not provide on some PL non-MBMS business according to the load condition on each PL at that time;
RNC sends " having changed professional information " message by the DCCH channel, and wherein, described message comprises first-selected layer information and first-choosing layer limit-information;
The UE that is in non-first-selected layer makes the decision that whether requires to switch on the first-selected layer according to first-selected layer information, first-choosing layer limit-information, priority that each is professional.
Whether UE of the present invention can support non-MBMS business and the information such as ability of oneself according to the priority of current business, first-selected layer after receiving first choice frequency information and first-choosing layer limit-information, make the decision that whether switches to first-selected layer.When whether UE decision switches to first choice frequency, just considered of the support of first-selected layer to non-MBMS business, so just avoided UE to initiate handoff request after, RNC finds that first-selected layer do not support non-MBMS business, notifies UE then.UE also will make the decision of whether switching once more.Promptly reduce unnecessary signaling, also simplified the processing of UE.
Description of drawings
Fig. 1 is the transmission flow figure of LCI;
Fig. 2 is the process chart of RNC;
Fig. 3 is the process chart of UE.
Embodiment
Provided the method for notice CELL_DCH state UE " first-choosing layer limit-information " among the present invention, the UE of being convenient to the CELL_DCH state makes the decision that correct MBMS frequency is selected.
Can in " MBMS first choice frequency " in " having changed professional information ", add " first-choosing layer limit-information ".This information is optionally, only is used for transmitting on DCCH.CELL_DCHUE receives " first-choosing layer limit-information " when receiving " first-selected layer information ", help UE to carry out correct MBMS frequency and select.
Below by flow chart the concrete operations of (comprising UE, RNC) of each node in the said process are described.
Fig. 1 has illustrated the handling process after the increase " first-choosing layer limit-information ".
When the session of 101 MBMS business began, SGSN sent " session begins " message to RNC.
After RNC receives " session begins " message, determine the PL of each department, and determine not provide on some PL non-MBMS business according to the load condition on each PL at that time
102 are in DCH UE on the non-first-selected layer to those, and RNC sends " having changed professional information " message by the DCCH channel, wherein comprises first-selected layer information and first-choosing layer limit-information, indicates on current first-selected layer and the first-selection layer whether support non-MBMS business.
UE is according to first-selected layer information, first-choosing layer limit-information, priority that each is professional and oneself
Ability is made the decision that whether requires to switch on the first-selected layer
If the UE decision switches to first-selected layer, will carry out following operation.
103 UE send to RNC by the DCCH channel and " change request information, wherein comprise MBMS first choice frequency solicited message
RNC receives that " after the change request information, judgement is the request of MBMS first choice frequency, just makes whether to allow the decision of UE direct-cut operation
If the RNC decision allows UE carry out direct-cut operation, just carry out following operation.
104 traditional direct-cut operations.
As shown in Figure 2, the operating process of RNC is described in detail as follows:
201 RNC receive message;
202 judge whether to receive " session begins " message from SGSN;
If 203 receive " session begins " message, RNC determines the PL of each department, and the sub-district of MBMS business promptly preferentially is provided, and determines whether provide non-MBMS business on each PL;
204 send " having changed professional information " message to the DCH UE that is on the non-first-selected layer by the DCCH channel, comprise first-selected layer information and first-choosing layer limit-information
If 205 receive " changing request information, and being the request of MBMS first choice frequency from UE;
Whether 206 decisions allow UE carry out direct-cut operation;
207 judge 206 determination result;
If 208 decisions allow UE carry out direct-cut operation, initiate traditional direct-cut operation;
As shown in Figure 3, the operating process of UE is described in detail as follows:
301 UE receive message;
302 judge whether to receive " having changed professional information " message, and wherein comprise first choice frequency information and first-choosing layer limit-information;
303 make the decision that whether requires to switch on the first-selected layer according to first choice frequency information, first-choosing layer limit-information, priority and the ability of oneself that each is professional;
304 judge whether to switch to first-selected layer;
If 305 decisions switch to first-selected layer, UE sends to RNC and " changes request information, wherein comprise the first choice frequency request.
Claims (3)
1. the method for noticing DCH UE first-choosing layer limit-information in the MBMS business comprises step:
After RNC receives " session begins " message, determine the PL of each department, and determine not provide on some PL non-MBMS business according to the load condition on each PL at that time;
RNC sends " having changed professional information " message by the DCCH channel, and wherein, described message comprises first-selected layer information and first-choosing layer limit-information;
The UE that is in non-first-selected layer makes the decision that whether requires to switch on the first-selected layer according to first-selected layer information, first-choosing layer limit-information, priority that each is professional.
2. method according to claim 1 is characterized in that also comprising step:
If described UE decision switches to first-selected layer, UE sends " change request information by the DCCH channel to RNC;
RNC receives that " after the change request information, judgement is the request of MBMS first choice frequency, makes whether allowing the decision of UE direct-cut operation.
3. method according to claim 2, it is characterized in that described " change request information comprise MBMS first choice frequency request message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101310203A CN1980468A (en) | 2005-12-08 | 2005-12-08 | Method for noticing DCH UE first-choosing layer limit-information in MBMS business |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101310203A CN1980468A (en) | 2005-12-08 | 2005-12-08 | Method for noticing DCH UE first-choosing layer limit-information in MBMS business |
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| Publication Number | Publication Date |
|---|---|
| CN1980468A true CN1980468A (en) | 2007-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2005101310203A Pending CN1980468A (en) | 2005-12-08 | 2005-12-08 | Method for noticing DCH UE first-choosing layer limit-information in MBMS business |
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| CN (1) | CN1980468A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009155829A1 (en) * | 2008-06-23 | 2009-12-30 | 中兴通讯股份有限公司 | Method for allocating multimedia broadcast multicast service (mbms) resources and receiving non-mbms data |
| CN101742694B (en) * | 2008-11-25 | 2014-04-16 | 大唐移动通信设备有限公司 | Video telephone business processing method, system and device |
-
2005
- 2005-12-08 CN CNA2005101310203A patent/CN1980468A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009155829A1 (en) * | 2008-06-23 | 2009-12-30 | 中兴通讯股份有限公司 | Method for allocating multimedia broadcast multicast service (mbms) resources and receiving non-mbms data |
| US8520582B2 (en) | 2008-06-23 | 2013-08-27 | Zte Corporation | Method for allocating multimedia broadcast multicast service (MBMS) resources and receiving non MBMS data |
| CN101742694B (en) * | 2008-11-25 | 2014-04-16 | 大唐移动通信设备有限公司 | Video telephone business processing method, system and device |
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