CN100450280C

CN100450280C - Method for user equipment releasing P-T-M wireless loading

Info

Publication number: CN100450280C
Application number: CNB2005100588692A
Authority: CN
Inventors: 胡灏
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2005-03-30
Filing date: 2005-03-30
Publication date: 2009-01-07
Anticipated expiration: 2025-03-30
Also published as: CN1842206A

Abstract

The present invention discloses a method for user equipment (UE) to release point to the multi-point (PTM) wireless loading in a multimedia broadcasting/multicasting service (MBMS). The UE periodically receives control information of MBMS business. The method comprises the following steps: A. the UE judges whether the control information of the MBMS business is not successfully obtained in predetermined time, and if the control information of the MBMS business is not successfully obtained in the predetermined time, step B is executed, otherwise operation is executed according to control information contents; B. the UE releases PTM wireless loading of the MBMS business. By applying the method of the present invention, situations that the UE retains the PTM wireless loading all the time and erroneously releases the PTM wireless loading can be prevented from occurring, and thereby, the accuracy for releasing the PTM wireless loading by the UE is improved, and errors for receiving the MBMS business by the UE and system resource wastes can be reduced.

Description

The method of user equipment releasing P-T-M wireless loading

Technical field

The present invention relates in the multimedia broadcast/group broadcast service (MBMS), the method for subscriber equipment (UE) releasing wireless loading, particularly the UE point of release is to the method for multiple spot (PTM) radio bearer.

Background technology

Multicast and broadcasting are a kind of technology that transmits data from a data source to a plurality of targets.In traditional mobile network, cell broadcaste service (CBS:Cell Broadcast Service) allows low bit rate data to share broadcast channel to all users' transmissions by the sub-district, belongs to information series business.

Now, people no longer are satisfied with phone and messaging service to the demand of mobile communication, fast development along with Internet, a large amount of multimedia services emerge, the some of them applied business requires a plurality of users can receive identical data simultaneously, as video request program, television broadcasting, video conference, online education, interactive game etc.These mobile multi-media services are compared with general data, have characteristics such as data volume is big, longer duration, delay sensitive.Present IP multicasting technology only is applicable to wired IP network, is not suitable for the mobile network, because the mobile network has particular network structure, functional entity and wave point, these are all different with wired IP network.

In order to effectively utilize mobile network resource, the WCDMA/GSM global standardsization organize 3GPP to propose multimedia broadcast/multicast service (MBMS:Multimedia Broadcast/Multicast Service), 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, improve utilization rate of network resource, the utilance of the interface resource of especially eating dishes without rice or wine.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, and this has complied with the trend of following mobile data development undoubtedly.

In order to support the MBMS business, increased mobile network functional entity--broadcast multicast service center BM-SC among the mobile network newly, it is content provider's a inlet, be used for authorizing and initiating the MBMS bearer service at mobile network, and plan transmits the MBMS content to schedule.In addition, functional entitys such as subscriber equipment (UE), land radio access web (UTRAN), GERAN, SGSN, GGSN strengthen, and have increased the relevant function of MBMS.

Such network configuration is referring to Fig. 1, and Fig. 1 is for supporting the wireless network architecture schematic diagram of multicast/broadcast business.Wherein, broadcast/multicast service center (BM-SC) is passed through Gmb interface or Gi interface and gateway general packet radio service (GPRS) support node (GGSN, Gateway GPRS SupportNode) and is linked to each other, and a BM-SC can link to each other with a plurality of GGSN; GGSN links to each other by Gn/Gp interface and Serving GPRS Support Node (SGSN, Serving GPRS Support Node), and a GGSN can link to each other with a plurality of SGSN; SGSN can link to each other with universal mobile telecommunications system (UMTS) land radio access web (UTRAN) by the Iu interface, UTRAN links to each other with communication terminal by the Uu interface then, SGSN also can strengthen wireless access network (GERAN) by Iu/Gb interface and global system for mobile communications (GSM) and link to each other, and GERAN links to each other with communication terminal by Um Interface then.

MBMS comprises multicast pattern and broadcast mode.The distinctive points of multicast service and broadcasting service only is: multicast service only sends corresponding information to the user who has subscribed to some information, and the broadcasting service then user of all in wireless network sends information.Multicast pattern needs user's corresponding multicast group of contracting, and carries out activation of service, and produces corresponding charge information.Because it is different that multicast and broadcast mode exist, cause also difference of its operation flow on business demand.

The MBMS business has two kinds of patterns when transmitting between UTRAN and UE: put multiple spot (PTM) pattern and point-to-point (PTP) pattern.The PTM pattern sends identical data by MBMS point-to-multipoint service channel (MTCH), and all add multicast service or can receive the interested UE of broadcasting service; Ptp mode sends data by dedicated transmission channel (DTCH), has only a corresponding UE to receive.

The user receives the entire flow of certain MBMS broadcasting service referring to Fig. 2, as shown in Figure 2, this flow process comprises: service statement (Service announcement), session begin (Session Start), MBMS notice (MBMS notification), transfer of data (Data transfer), conversation end (Session Stop) process.

Wherein, Service announcement process is used for by the current service that can provide of BM-SC declaration.

In the Session Start process, BM-SC is ready to transfer of data, and informing network is set up the bearing resource of corresponding core net (CN) and universal land radio access web (UTRAN).

MBMS notification process is used to notify UE MBMS multicast conversation to be about to begin.

In the Data transfer process, BM-SC transfers data to UE by the bearing resource that session begins to set up in the process.

The bearing resource that Session Stop process is used for Session Start process is set up discharges.

In broadcasting service, all preserve the bearer context of this MBMS business in each MBMS service node, this bearer context is activated in Session Start process, in Session Stop process by deexcitation.

The user receives the entire flow of certain MBMS multicast service referring to Fig. 3, as shown in Figure 3, this flow process comprises: subscription (Subscription), service statement (Service announcement), adding (Joining), session begin (Session Start), MBMS notice (MBMS notification), transfer of data (Data transfer), conversation end (Session Stop) and leave (Leaving) process.

Wherein, the Subscription process is used for allowing the user subscribe to required MBMS service in advance.

Service announcement process is used for by the current service that can provide of BM-SC declaration.

The Joining process is a MBMS activating multicast service process, UE is in the Joining process, informing network self is ready to become the member of current multicast group, receive corresponding professional multicast packet, this Joining process can be created the MBMS UE context of record UE information in the UE of network and adding multicast group.

In the Session Start process, BM-SC is ready to transfer of data, and informing network is set up the bearing resource of corresponding CN and UTRAN.

The Leaving process makes the subscriber in the group leave multicast group, i.e. user's receiving multicast data no longer, and this process can be with corresponding MBMS UE context deletion.

Referring to Fig. 4, Fig. 4 is a MCCH message scheduling cycle schematic diagram.Whole M CCH information transmitted periodically based on " repetition period "." modification cycle " is defined as the integral multiple of " repetition period ".MBMS AccessInformation transmitted periodically based on " access information cycle "." repetition period " is again the integral multiple in " access information cycle " simultaneously.

The RRC message of the last carrying of MCCH mainly comprises: MBMS access information (MBMS AccessInformation, MAI), MBMS revises business information (MBMS Modified Services Information, MSI), the RB configuration information (Changed RB Configuration Information) that changes, the non-modification business information of MBMS (MBMS Unmodified Services Information), RB configuration information of non-variation (Unchanged RB Configuration Information) or the like.

Wherein, information such as MBMS Modified Services Information are that key message key message in a modification cycle is immovable, and access informations such as MBMS Access Information then are to change at any time.

Begin in above-mentioned session in (Session Start) step, UTRAN can count (Counting) operation, uses the radio bearer mode of which kind of air interface with decision.In the MBMS system, two kinds of radio bearer modes are arranged: point-to-point (PTP) and put multiple spot (PTM).In simple terms, point-to-point is exactly that network is given user's MBMS transmission business by dedicated channel, is that network is given user's MBMS transmission business information by common signal channel and put multiple spot.

In above-mentioned conversation end (Session Stop) step, in order to save resource, UTRAN and UE can discharge radio bearer (RB).For the RB of point-to-point, UTRAN notifies UE by dedicated signaling, and this process is identical with existing R99 system.But, then need by the signaling UE on the Common Control Channel for the UE that puts multiple spot.This Common Control Channel is MCCH in the MBMS system, just receives MCCH when UE begins to receive the MBMS business datum periodically, and the control information that discharges PTM RB is to transmit in the Modified Service Information message of transmitting on MCCH.

UTRAN indicates UE releasing wireless loading process to divide point-to-point on control channel and puts two kinds of situations of multiple spot in the existing protocol.Wherein the dispose procedure of point-to-point (PTP) RB is identical with existing R99 flow process, neither the improved situation of the present invention, therefore no longer describe in detail here.Following description is primarily aimed at the situation that a little discharges to multiple spot (PTM) RB, and this dispose procedure may further comprise the steps:

1, UTRAN obtains Session stop instruction from CN;

2, the indication information of notifying UE need discharge professional RB in MBMS Modified Services Information (MSI) message of UTRAN on the MCCH channel, and this information transmission primaries;

3, after UE receives this information, discharge RB information.If UE does not receive this MSI message, and also do not have in the MBMS Unmodified Services Information message in next MP about this professional relevant information, then UE discharges this professional PTM RB.

Mainly paid close attention under normal circumstances the situation when UE has inerrably received MBMSMODIFIED SERVICES INFORMATION at least and/or MBMS UNMODIFIED SERVICESINFORMATION message in the prior art.But in fact network environment is very complicated.Sometimes UE may be in the comparison rugged environment, therefore UE very likely can not receive this MSI message that discharges PTM RB and other USI message, stipulating according to agreement in such cases, UE can keep down this professional RB always and not discharge, so just taken the RB resource without meaning, and UE can ceaselessly receive the information relevant with this business.

Another situation, if do not receive the MSI message that discharges the RB indication that comprises that network sends according to existing protocol UE, and relevant information that should business in the USI that received afterwards, UE will discharge PTM RB so.But in fact, have this moment other situation cause among MSI and the USI not should business access information, carrying out other operations such as FLC such as this business, and this indication is indicated in MSI just, and UE does not receive among the MSI about this professional FLC information, information that equally should business in the USI of next MP simultaneously, UE will discharge this business PTM RB according to existing protocol this moment, and this is the operation of a mistake certainly.Or professional number is many, and UTRAN does not have the space to transmit this professional information in the MP scope of UE monitoring, and this moment, UE found not comprise this professional information among MSI and the USI, then will discharge this RB according to agreement.Be actually the behavior of a mistake, because should business also might continue transmission.

Therefore, exist the unreasonable or wrong part of two aspects according to prior protocols: UE may not receive the instruction that discharges PTM RB on the one hand, causes UE to keep PTM RB carrying, waste system resource always; On the other hand, do not comprise it among the MSI that UE may receive and receiving professional business information in a MP, and do not comprise it among the USI that in next MP, receives yet and receiving professional business information, this situation will discharge PTM RB carrying mistakenly, causes UE can't continue normally to receive the MBMS business datum.

Summary of the invention

In view of this, main purpose of the present invention is to provide in a kind of MBMS business the UE point of release to the method for multiple spot (PTM) radio bearer, improves the accuracy that UE discharges the PTM radio bearer.

For achieving the above object, technical scheme of the present invention specifically is achieved in that

The user equipment (UE) point of release is to the method for multiple spot PTM radio bearer among a kind of multimedia broadcast/group broadcast service MBMS, and UE receives the control information of MBMS business periodically, and this method may further comprise the steps:

A, UE judge the control information whether successfully do not obtain the MBMS business in the given time, if, execution in step B then; Otherwise content executable operations according to control information;

B, UE discharge the PTM radio bearer of MBMS business.

Wherein, the described UE of steps A judge the control information that whether does not successfully obtain the MBMS business in the given time method can for:

If in first scheduled time, never receive the control information of MBMS business; Or in first scheduled time, received the control information of MBMS business, but never get access to all or the control information content of the MBMS business that the user is required, then judge the control information that does not successfully obtain the MBMS business in the given time.

The described UE of steps A judge the control information that whether does not successfully obtain the MBMS business in the given time method can for: at a transmission cycle or after two or more transmission cycles are not received the MBMS business control information continuously, start first timer, by timer first scheduled time of timing, judge in first scheduled time then whether never receive the control information of MCCH channel transmission or never get access to the content whole or control information of the MBMS business that the user is required.Described transmission cycle is modification cycle or repetition period.

Steps A is described judge whether to obtain in the given time the MBMS business control information method can for:

At a transmission cycle or after two or more transmission cycles are not received the MBMS business control information continuously, start first counter, by first counter transmission cycle is counted regularly first scheduled time, when judging first scheduled time that arrives the predetermined period number, whether never receive the control information of MCCH channel transmission or never get access to the content whole or control information of the MBMS business that the user is required.Described transmission cycle is modification cycle or repetition period.

The described UE of steps A judges that the method that whether does not successfully obtain the control information of MBMS business in the given time may further include:

UE judges whether the business control information that receives does not comprise MSI or USI in second scheduled time after acquiring MBMS business control information content; If then judge the control information that does not successfully obtain the MBMS business.

Described UE judge the business control information that in second scheduled time, receives whether do not comprise MSI or USI method can for:

If the control information that receives in second scheduled time does not comprise MSI or USI; Or the control information that receives in second scheduled time comprises MSI or USI, but never obtains the message content of MSI or USI; Or can't successfully receive MSI and USI in the transmission cycle in second scheduled time, judge that then the control information that receives does not comprise MSI or USI in second scheduled time.

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, not receiving the business control information that comprises MSI and USI, start second timer, by second timer second scheduled time of timing, judgement second scheduled time then, whether never receive the control information that comprises MSI and/or USI, or never obtain the message content of MSI and/or USI, do not comprise MSI and/or USI if then judge the control information that in second scheduled time, receives.

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, not receiving the business control information that comprises MSI and USI, start second counter, by second counter transmission cycle is counted regularly second scheduled time, when judging second scheduled time that arrives the predetermined period number, whether never receive the control information that comprises MSI and/or USI, or never obtain the message content of MSI and/or USI, do not comprise MSI and/or USI if then judge the control information that in second scheduled time, receives.

UE is after obtaining MSI or USI, and whether the message content of judging MSI or USI mistake; If then judge the control information that does not successfully obtain the MBMS business.

Described UE judge the whether wrong method of the message content of MSI or USI can for: UE judges whether to have taken place agreement and receives mistake, if then judge the message content demodulation mistake of MSI or USI.

This method may further include:

UE judges to receive in the 3rd scheduled time in the message content of MSI or USI behind correct acquisition MSI or USI message content, whether comprises the message content of the MBMS business relevant with this UE; If, otherwise when in the 3rd scheduled time, all not receiving the message content of MSI or USI, discharge the PTM radio bearer of relevant MBMS business then according to this message content executable operations.

Described judge the MSI that receives in the 3rd scheduled time or USI whether comprise the relevant MBMS business of UE message content method can for:

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, receiving the MSI and USI that does not comprise relevant MBMS service message content, start the 3rd timer, by the 3rd timer the 3rd scheduled time of timing, judge the MSI and/or the USI that then whether never receive relevant MBMS service message content in the 3rd scheduled time.Described transmission cycle is modification cycle or repetition period.

MSI that described judgement receives or USI whether comprise relevant MBMS business message content method can for:

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, receiving the MSI and USI that does not comprise relevant MBMS service message content, start the 3rd counter, by the 3rd counter transmission cycle is counted regularly the 3rd scheduled time, when judging the 3rd scheduled time that arrives the predetermined period number, whether never receive the MSI and/or the USI that comprise relevant MBMS service message content.Described transmission cycle is modification cycle or repetition period.

The described method that judges whether never to receive the MSI that comprises relevant MBMS service message content and/or USI can for:

If the MSI that receives in the 3rd scheduled time comprises relevant MBMS service message content, but never receives USI, then judge never to receive MSI and/or the USI that comprises relevant MBMS service message content;

If the USI that receives in the 3rd scheduled time comprises relevant MBMS service message content, but never receives MSI, then judge never to receive MSI and/or the USI that comprises relevant MBMS service message content.

This method may further include:

UE is behind correct acquisition MSI or USI message content, judge that the MSI that comprises relevant MBMS business control information that whether receives pre-determined number in the 5th scheduled time is or/and USI, if, then according to this message content executable operations, otherwise UE discharges the PTM radio bearer of the MBMS business that is receiving.

Discharge information if UE receives the radio bearer that comprises relevant MBMS business among the MSI, then can judge in the 4th scheduled time: whether receive MSI and/or USI; Or judge the control information that whether comprises relevant MBMS business among the MSI in the 4th scheduled time, receive and/or the USI, if then according to control information content executable operations; Otherwise UE discharges the PTM radio bearer of the MBMS business that is receiving.

Among the described step B: UE can further judge the situation that receives the Traffic Channel in the 6th scheduled time before discharging the PTM radio bearer;

UE did not receive under the situation of business datum from Traffic Channel in the 6th scheduled time, discharged the PTM radio bearer of relevant MBMS business.

The described scheduled time can be set to the integral multiple in the cycle of revising or the integral multiple of repetition period.

The described scheduled time can be set to identical or different for different user; Or the described scheduled time can be set to identical or different for different service types.

The timing of described timer can be set to identical or different for different user; Or the timing of described timer can be set to identical or different for different service types.

The predetermined period number of described counter can be set to identical or different for different user; Or the predetermined period number of described counter can be set to identical or different for different service types.

Can revise the predetermined period number by the UE setting or according to the situation of current reception business control information; Or revise the predetermined period number and be handed down to UE by the network side setting or according to the situation of current reception business control information.

Described subscriber equipment can be the subscriber equipment in WCDMA system or CDMA2000 system or UTRA TDD system or the TD-SCDMA system.

As seen from the above technical solutions, UE discharges the method for PTM radio bearer in this MBMS business of the present invention, according to the situation of receiving control information in the scheduled time, discharges the radio bearer of MBMS business.Because the present invention is not such to prior art, as long as do not receive that in two transmission cycles MSI and/or USI are with regard to releasing wireless loading, but after this situation occurring, control channel is carried out the supervision of a period of time, if after during this period of time, still successfully do not obtain the control information of MBMS business, just releasing wireless loading.Like this, just can avoid the situation that UE keeps the PTM radio bearer always and discharges the PTM radio bearer mistakenly occurring, improve the accuracy of UE release PTM radio bearer.

Description of drawings

Fig. 1 is for supporting the wireless network architecture schematic diagram of multicast/broadcast business;

Fig. 2 receives the entire flow of certain MBMS broadcasting service for the user;

Fig. 3 receives the entire flow of certain MBMS multicast service for the user;

Fig. 4 is a MCCH channel dispatch cycle schematic diagram;

Fig. 5 discharges PTM RB method flow diagram for the present invention;

Fig. 6 discharges the flow chart of PTM RB method one preferred embodiment for the present invention.

Embodiment

For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.

The invention provides the method that a kind of UE discharges PTM RB, the realization flow of this method is referring to Fig. 5, and Fig. 5 discharges PTM RB method flow diagram for the present invention.It may further comprise the steps:

Step 501, UE receives the control information of MBMS business periodically.

Step 502, UE judges the control information that whether does not successfully obtain the MBMS business in the given time, if then execution in step 503; Otherwise execution in step 504.

Step 503, UE discharges the PTM radio bearer of MBMS business.

Step 504, UE is according to the content executable operations of control information.

UE can judge the control information that does not successfully obtain the MBMS business under following several situations:

1, UE does not receive MCCH information all the time in first scheduled time, or has received MCCH information in first scheduled time, but never gets access to the content of the required business control information of whole MBMS or user.

Though 2, UE has obtained control information content in the MCCH information, the MCCH information that receives in second scheduled time does not comprise MSI or USI.

Though 3, the MCCH information that receives of UE comprises MSI or USI, the message content of MSI or USI is wrong.

In addition, among the present invention, if UE successfully obtains the control information of MBMS business, but the message content that does not comprise the MBMS business that is receiving among MSI that in the 3rd scheduled time, receives or the USI, UE just judges that the MBMS business that is receiving stops, thereby discharges the professional PTM RB that sets up into this MBMS.

The present invention is described in detail below to lift a preferred embodiment.

Referring to Fig. 6, Fig. 6 discharges the flow chart of PTM RB method one preferred embodiment for the present invention.This flow process may further comprise the steps:

Step 601, UE receives MCCH in a transmission cycle.

Step 602 judges whether to receive MCCH information or can not obtain MBMS business control information content or the required business control information content of user from the MCCH information that receives, if then execution in step 603; Otherwise execution in step 621.

Step 603 judges whether comprise MSI and/or USI in the MCCH information, if then further judge whether to demodulate the message content of MSI and/or USI; If do not comprise MSI and/or USI in the MCCH information, maybe can not demodulate the message content of MSI and/or USI, then execution in step 604; Otherwise execution in step 615.

Step 604 judges whether the MSI or the message content among the USI that receive be wrong, if then execution in step 615, otherwise execution in step 605.

In this step, described UE can receive wrong or other are wrongly judged by judging whether to have taken place agreement, and whether the message content demodulation of MSI or USI mistake.Be not inconsistent such as: type of message that demodulation is come out and agreement regulation, or the IE cell receives mistake etc. and thinks that then agreement has taken place receives mistake.

Step 605 is judged the control information that whether comprises the MBMS business that UE receiving among MSI or the USI, if execution in step 606 then; Otherwise execution in step 609.

Step 606 judges whether comprise the RB release signaling among the MSI, if execution in step 607 then; Otherwise execution in step 608.

Step 607, UE discharges the PTM RB of the MBMS business of indicating in the release signaling, if UE receives only a kind of MBMS business then stops to receive MCCH, if also need or receiving other MBMS business, then the continuation cycle receives MCCH.

Step 608, UE is according to the message content executable operations of MSI or USI, and returns step 601.This process and prior art are identical, repeat no more here.

Step 609, UE writes down the control information that MSI in this transmission cycle or USI do not comprise the MBMS business that is receiving.

Step 610, UE judges whether the control information that MSI that continuous two transmission cycles are received and/or USI are not included in the MBMS business of reception according to record, if execution in step 611 then; Otherwise return step 601.

Determination methods in this step can be: if UE does not receive the MSI message on this MCCH channel or the channel in a transmission cycle, and on next MCCH channel, MSI and USI have been received, but wherein do not have the user to receive professional relevant information, then judge the control information that MSI that continuous two transmission cycles are received or USI are not included in the MBMS business of reception.

Step 611 judges whether the 3rd timer starts, if then execution in step 612; Otherwise execution in step 614.

Step 612, whether the scheduled time of judging the 3rd timer then never receives the MSI and/or the USI that comprise the MBMS business control information that is receiving, if then execution in step 613; Otherwise return step 601.

Step 613 discharges the PTM RB of the MBMS business that is receiving, if UE receives only a kind of MBMS business then stops to receive MCCH, if also in other MBMS business of reception, then the continuation cycle receives MCCH.

Step 614 starts the 3rd timer, returns step 601.

In the present embodiment, UE is by the 3rd timer regularly, judge and in the 3rd scheduled time, whether receive MSI and/or the USI that comprises the MBMS business control information that UE receiving, in the practical application, can also be by counting to transmission cycle, judge in the 3rd scheduled time, whether to receive MSI and/or the USI that comprises the MBMS business control information that UE receiving, concrete determination methods is:

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, receiving the MSI and USI that does not comprise the MBMS business control information that UE receiving, start the 3rd counter, by the 3rd counter the 3rd scheduled time of timing, whenever, add one through a transmission cycle counter, after the 3rd predetermined period time of counting arrives, whether receive the MSI and/or the USI that comprise the MBMS business control information that UE receiving in judging during this period of time.

In the practical application, if in the 3rd scheduled time, received MSI and/or the USI that comprises the MBMS business control information that UE receiving, then can be with the 3rd timer or the 3rd counter O reset, and close.If in a transmission cycle of back, do not receive the control information that comprises MSI, and after in next transmission cycle, receiving the MSI and USI that does not comprise the MBMS business control information that UE receiving, restart the 3rd timer or the 3rd counter again.Can guarantee like this: if UE begins not receive MSI and/or the USI that comprises the MBMS business control information that UE receiving, but received afterwards several times, in the 3rd scheduled time of back, do not receive the MSI and/or the USI that comprise the MBMS business control information that UE receiving again, discharge PTM RB yet.

In the present embodiment, UE never receives MSI and/or the USI that comprises the MBMS business control information that is receiving in the given time, just discharges PTM RB.In the practical application, can also be provided with one and receive number of times, if the MSI of Jie Shouing and/or the USI reception number of times that not have arrival to preset in the given time then discharges PTM RB.Such as: in the timer time scope, suppose it is N MP cycle, UE has received n MSI and/or USI information, if n accounts for the certain proportion of N, and wherein not about the control information of the MBMS business that receiving, UE discharges PTM RB information so.

In the present embodiment,, could judge to relate to the message content that UE is receiving the MBMS business because agreement regulation UE only receives MSI and USI in the MP cycle.Therefore, judge whether in the present embodiment never to receive the MSI that comprises the MBMS service message content that is receiving and/or USI method can for:

If the MSI that receives in the 3rd scheduled time comprises relevant MBMS service message content, but never receives USI, then judge never to receive MSI and/or the USI that comprises relevant MBMS service message content.

If do not comprise relevant MBMS service message content among the MSI that receives in each of the 3rd scheduled time in modification cycle, and do not comprise the MBMS service message content that is receiving among the USI that should receive in the modification cycle yet, judge that then this modification cycle does not receive MSI and the USI that comprises the MBMS service message content that is receiving.

Step 615, UE writes down and does not receive MCCH information that comprises MSI or USI or the message content that does not obtain MSI or USI in this transmission cycle, or the MSI or the USI message content that receive are wrong.

Step 616, UE judges whether that according to record continuous two transmission cycles do not receive MCCH information that comprises MSI and/or USI or the message content that does not obtain MSI and/or USI, or the MSI and/or the USI message content that receive are wrong, if execution in step 617 then; Otherwise execution in step 601.

Determination methods in this step is: if UE does not receive the MCCH information that comprises MSI in a transmission cycle, and in next transmission cycle, do not receive MCCH information that comprises MSI and USI or the message content that does not obtain MSI or USI, or the MSI or the USI message content that receive are wrong, then judge incorrect MSI of reception of continuous two transmission cycles or USI.

Step 617 judges whether second timer starts, if execution in step 618 then; Otherwise execution in step 620.

Step 618 is judged second timing then, whether never receives the MCCH information that comprises MSI or USI, or it is wrong not obtain the MSI or the USI message content of the message content of MSI or USI or reception; If then execution in step 619; Otherwise return step 601.

In this step, if the control information that receives in second scheduled time does not comprise MSI or USI; Or the control information that receives in second scheduled time comprises MSI or USI, but never obtains the message content of MSI or USI; Or can't successfully receive MSI and USI in the transmission cycle in second scheduled time, judge that then the control information that receives does not comprise MSI or USI in second scheduled time.

Step 619, UE discharges the PTM RB of all MBMS business that receiving, and stops to receive MCCH.

Step 620 starts second timer, returns step 601.

In the present embodiment, UE is by second timer regularly, judge and in second scheduled time, whether receive the MCCH information that comprises MSI or USI, in the practical application, can also be by counting to transmission cycle, judge in second scheduled time, whether to receive the MCCH information that comprises MSI or USI, concrete determination methods is:

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, not receiving the MCCH information that comprises MSI and USI, start second counter, by second counter, second scheduled time of timing, whenever, add one through a transmission cycle counter, after arriving second predetermined period and counting the time, judge whether receive the MCCH information that comprises MSI or USI in this time.

In the practical application,, then can and close the second timer or second counter O reset if in second scheduled time, received and comprise MSI and/or USI.If in a transmission cycle of back, do not receive the control information that comprises MSI, and in next transmission cycle, receive do not comprise MSI and USI after, restart the second timer or second counter again.Can guarantee like this: if UE begins not receive MSI and/or USI, but received afterwards several times, and in second scheduled time of back, do not receive again MSI and/or USI also to discharge PTM RB.

Step 621, UE writes down and does not receive MCCH information in this transmission cycle or do not obtain the MCCH information content.

Step 622, UE judges whether that according to record continuous two transmission cycles do not receive MCCH information or do not obtain the MCCH information content, if then execution in step 623; Otherwise return step 601.

Step 623 judges whether first timer starts, if execution in step 624 then; Otherwise execution in step 626.

Step 624 is judged the first timer timing then, whether never receives MCCH information; Or in first scheduled time, received MCCH information, but never get access to the content of whole MCCH information, if then judge in first scheduled time, successfully not obtain MBMS control information, execution in step 625; Otherwise execution in step 626.

Step 625, UE discharges all PTM RB, and stops to receive the MCCH channel.

Step 626, UE starts first timer, and returns step 601.

In the present embodiment, UE is by first timer regularly, judges whether receive MCCH information in first scheduled time, in the practical application, can also judge in first scheduled time, whether successfully to receive MCCH information, concrete determination methods is by counting to transmission cycle:

After continuous two transmission cycles are not received MCCH information, first counter, by first counter, first scheduled time of timing, whenever, add one through a transmission cycle counter, when arriving first predetermined period and counting the time, judge whether do not receive MCCH information in this time or do not obtain whole MCCH information.

In the practical application,, then can and close the first timer or first counter O reset if in first scheduled time, successfully receive MCCH information.If in continuous two transmission cycles of back, successfully do not receive MCCH information, restart the first timer or first counter again.Can guarantee like this: if UE begins successfully not receive MCCH information, but received afterwards several times, and in first scheduled time of back, successfully do not receive MCCH information again, and also discharged PTMRB.

In the present embodiment, be after continuous two transmission cycles are not received MCCH information, come regularly first scheduled time, can reduce the situation that some blindly start like this by the first timer or first counter.Certainly, also can plural transmission cycle such as three or four or the like, but can not be too much, if may influence the accuracy of judgement too much.

In addition, in actual applications, UE may receive wrong RB release signaling, in this case, UE has received that the RB release signaling has just discharged RB, but actual this release signaling may not be the RB release signaling of its MBMS business that is receiving, just cause the UE mistake release RB.

Therefore, UE can directly not discharge RB, and start one the 4th timer after receiving the RB release signaling in the present embodiment, judges whether to receive MSI or USI in the 4th scheduled time of this 4th timer; Or judge the control information that whether comprises the MBMS business that is receiving among the MSI in the 4th scheduled time of this timer, receive or the USI; If then carry out subsequent step, otherwise discharge RB according to control information.

In addition, present embodiment when UE discharges RB in decision, receives the Traffic Channel of a period of time earlier, as long as the time of 1～2 MP just can in order to guarantee correctly to discharge RB; If do not receive business datum during this period of time, then discharge the PTM radio bearer of the MBMS business that is receiving from Traffic Channel.

Transmission cycle in the present embodiment can be modification cycle (MP) or repetition period (RP).The various scheduled times can be set to the integral multiple of transmission cycle.

Various transmission cycle numbers in the present embodiment can be done adaptive change at different situations, can be that UE revises described predetermined period number according to the situation of current reception business control information; Also can be that network side is revised described predetermined period number and is handed down to UE according to the situation of current reception business control information.

Such as: if continuous two business of UE all have the situation of this MCCH of can not receive to produce, UE reduces the counting to transmission cycle so, and promptly UE does not receive the relevant information of this MBMS business in the shorter time, will discharge this business RB.

The various scheduled times in the present embodiment can be set to identical or different for different user; Or the scheduled time is set to identical or different for different service types.And the timing of each timer in the present embodiment can be set to identical or different for different user; Or the timing of timer is set to identical or different for different service types.Equally, the predetermined period number of individual count device can be set to identical or different for different user in the present embodiment; Or the predetermined period number of counter is set to identical or different for different service types.

In the said process, be to be example with the PTM RB that discharges the MBMS business receiving.In the practical application, no matter current certain MBMS business datum that whether receiving of UE, or prepare to receive certain MBMS business datum or finish to receive certain MBMS business datum, as long as activated this MBMS business, and partly or entirely set up corresponding PTM RB, the inventive method all is suitable for.

The inventive method can be applied to provide the WCDMA of MBMS business at least, and CDMA2000 is in the communication systems such as UTRA TDD and TD-SCDMA.Described subscriber equipment can be the subscriber equipment in WCDMA system or CDMA2000 system or UTRA TDD system or the TD-SCDMA system.

By the above embodiments as seen, this UE of the present invention discharges in the method for PTM RB, and UE discharges the RB of this MBMS business according to the situation of receiving control information in the scheduled time.Therefore, can avoid the situation that UE keeps the PTM radio bearer always and discharges the PTM radio bearer mistakenly occurring, improve the accuracy of UE release PTM radio bearer, can reduce mistake and system resource waste that UE receives the MBMS business.

Claims

1, the user equipment (UE) point of release is to the method for multiple spot PTM radio bearer among a kind of multimedia broadcast/group broadcast service MBMS, and UE receives the control information of MBMS business periodically, it is characterized in that, this method may further comprise the steps:

B, UE discharge the PTM radio bearer of MBMS business.

2, the method for claim 1 is characterized in that, the described UE of steps A judges that the method that whether does not successfully obtain the control information of MBMS business in the given time is:

3, method as claimed in claim 2 is characterized in that, the described UE of steps A judges that the method that whether does not successfully obtain the control information of MBMS business in the given time is:

After a transmission cycle or continuous two above transmission cycles are not received the MBMS business control information, start first timer, by timer first scheduled time of timing, judge in first scheduled time then whether never receive the control information of MCCH channel transmission or never get access to the content whole or control information of the MBMS business that the user is required;

Described transmission cycle is modification cycle or repetition period.

4, method as claimed in claim 2 is characterized in that, the described UE of steps A judges that the method that whether does not successfully obtain the control information of MBMS business in the given time is:

After a transmission cycle or continuous two above transmission cycles are not received the MBMS business control information, start first counter, by first counter transmission cycle is counted regularly first scheduled time, when judging first scheduled time that arrives the predetermined period number, whether never receive the control information of MCCH channel transmission or never get access to the content whole or control information of the MBMS business that the user is required; Described transmission cycle is modification cycle or repetition period.

5, method as claimed in claim 2 is characterized in that, the described UE of steps A judges that the method that whether does not successfully obtain the control information of MBMS business in the given time further comprises:

UE judges whether the business control information that receives does not comprise MBMS and revise business information MSI or the non-modification business information of MBMS USI in second scheduled time after acquiring MBMS business control information content; If then judge the control information that does not successfully obtain the MBMS business.

6, method as claimed in claim 5 is characterized in that, the method whether business control information that described UE judgement received in second scheduled time does not comprise MSI or USI is:

If the control information that receives in second scheduled time does not comprise MSI or USI; Or the control information that receives in second scheduled time comprises MSI or USI, but never obtains the message content of MSI or USI; Or can't successfully receive MSI and USI in the transmission cycle in second scheduled time, judge that then the control information that receives does not comprise MSI or USI in second scheduled time;

Described transmission cycle is modification cycle or repetition period.

7, method as claimed in claim 6 is characterized in that, the method whether business control information that described UE judgement received in second scheduled time does not comprise MSI or USI is:

8, method as claimed in claim 6 is characterized in that, the method whether business control information that described UE judgement received in second scheduled time does not comprise MSI or USI is:

9, method as claimed in claim 5 is characterized in that, the described UE of steps A judges that the method that whether does not successfully obtain the control information of MBMS business in the given time further comprises:

10, method as claimed in claim 9 is characterized in that, described UE judges that whether wrong message content the method for MSI or USI be: UE judges whether to have taken place agreement and receives mistake, if then judge the message content demodulation mistake of MSI or USI.

11, method as claimed in claim 9 is characterized in that, this method further comprises:

12, method as claimed in claim 11 is characterized in that, the described method of judging whether the MSI that receives in the 3rd scheduled time or USI comprise the message content of the relevant MBMS business of UE is:

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, receiving the MSI and USI that does not comprise relevant MBMS service message content, start the 3rd timer, by the 3rd timer the 3rd scheduled time of timing, judge the MSI and/or the USI that then whether never receive relevant MBMS service message content in the 3rd scheduled time;

Described transmission cycle is modification cycle or repetition period.

13, method as claimed in claim 11 is characterized in that, the method whether MSI that described judgement receives or USI comprise the message content of relevant MBMS business is:

In a transmission cycle, do not receive the control information that comprises MSI, and after in next transmission cycle, receiving the MSI and USI that does not comprise relevant MBMS service message content, start the 3rd counter, by the 3rd counter transmission cycle is counted regularly the 3rd scheduled time, when judging the 3rd scheduled time that arrives the predetermined period number, whether never receive the MSI and/or the USI that comprise relevant MBMS service message content; Described transmission cycle is modification cycle or repetition period.

14, as claim 12 or 13 described methods, it is characterized in that, describedly judge whether never to receive the MSI that comprises relevant MBMS service message content and/or the method for USI is:

15, method as claimed in claim 9 is characterized in that, this method further comprises:

16, method as claimed in claim 11 is characterized in that: discharge information if UE receives the radio bearer that comprises relevant MBMS business among the MSI, then judge in the 4th scheduled time: whether receive MSI and/or USI; Or judge the control information that whether comprises relevant MBMS business among the MSI in the 4th scheduled time, receive and/or the USI, if then according to control information content executable operations; Otherwise UE discharges the PTM radio bearer of the MBMS business that is receiving.

As claim 1 or 15 described methods, it is characterized in that 17, among the described step B: UE further judges the situation that receives the Traffic Channel in the 6th scheduled time before discharging the PTM radio bearer;

18, as claim 1,2,3,4,5,6,7,8,9,11,12,13 or 16 described methods, it is characterized in that: the described scheduled time is set to the integral multiple in the cycle of revising or the integral multiple of repetition period.

19, as claim 1,2,3,4,5,6,7,8,9,11,12,13 or 15 described methods, it is characterized in that: the described scheduled time is set to identical or different for different user; Or the described scheduled time is set to identical or different for different service types.

20, as claim 3,7 or 12 described methods, it is characterized in that: the timing of described timer is set to identical or different for different user; Or the timing of described timer is set to identical or different for different service types.

21, as claim 4,8 or 13 described methods, it is characterized in that: the predetermined period number of described counter is set to identical or different for different user; Or the predetermined period number of described counter is set to identical or different for different service types.

22, as claim 4,8 or 13 described methods, it is characterized in that: revise the predetermined period number by the UE setting or according to the situation of current reception business control information; Or revise the predetermined period number and be handed down to UE by the network side setting or according to the situation of current reception business control information.

23, the method for claim 1 is characterized in that: described subscriber equipment is the subscriber equipment in WCDMA system or CDMA2000 system or UTRA TDD system or the TD-SCDMA system.