CN100450004C

CN100450004C - Transmitting method and receiving method for multimedia broadcasting/multicasting service

Info

Publication number: CN100450004C
Application number: CNB2005100834697A
Authority: CN
Inventors: 胡灏; 许炳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2005-07-27
Filing date: 2005-07-27
Publication date: 2009-01-07
Anticipated expiration: 2025-07-27
Also published as: CN1905694A; WO2007012280A1

Abstract

The invention discloses a method for sending multimedia broadcast / multicast service (MBMS), which includes: a1. Network informs UE about the single-distributed carrier information of MBMS. a2. Network determines the carrier style of the current MBMS when it receives the instruction for starting the conversation. a3. Network sends controlling information and instruction to UE, and establishes the carriers according to the determined style, then transmits the current MBMS service to UE via carrier of MBMS.

Description

Multimedia broadcasting multicast service sending method and method of reseptance

Technical field

The present invention relates to multi-medium broadcast/group broadcast service (MBMS) technology, refer to MBMS method for transmitting service and the method for reseptance realized based on single carrier especially.

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 communications network, sub-district multicast service or broadcasting service (CBS, Cell Broadcast Service) allow low bit rate data to share broadcast channel to all users' transmissions by the sub-district, and this kind business belongs to information series business.

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

In order to effectively utilize the mobile communications network resource, 3G (Third Generation) Moblie global standards tissue (3GPP) has proposed the MBMS of mobile communications network, thereby in mobile communications 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 interface resource of especially eating dishes without rice or wine.The MBMS that 3GPP proposes 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.

Fig. 1 is for supporting the wireless network architecture schematic diagram of broadcasting/packet service, as shown in Figure 1, among the existing 3GPP, support that the wireless network entity of broadcasting/packet service is a broadcasting/packet service server (BM-SC) 101, BM-SC 101 is by Gmb interface or Gi interface and critical point GPRS Support Node (GGSN, GatewayGPRS Support Node) 102 link to each other, and a BM-SC 101 can link to each other with a plurality of GGSN 102; GGSN 102 links to each other by Gn/Gp interface and Serving GPRS Support Node (SGSN, Serving GPRSSupport Node) 103, and a GGSN 102 can link to each other with a plurality of SGSN 103; SGSN 103 can link to each other with universal mobile telecommunications system (UMTS) land radio access web (UTRAN) 104 by the Iu interface, UTRAN 104 links to each other with UE 106 by the Uu interface then, SGSN 103 also can strengthen wireless access network (GERAN) 105 by Iu/Gb interface and global system for mobile communications and link to each other, and GERAN 105 links to each other with UE 107 by Um Interface then.Wherein, GGSN and SGSN belong to the node in the core net in the wireless network (CN).

The network configuration that provides from Fig. 1 as can be seen, in order to support the MBMS business, in 3-G (Generation Three mobile communication system), increased mobile network functional entity--broadcast multicast service center, be BM-SC, described BM-SC is content provider's a inlet, be used for authorizing and initiating the MBMS business, and plan transmits the MBMS content to schedule at mobile network.In addition, on functional entitys such as UE, UTRAN, GERAN, SGSN, GGSN, increased the function relevant with MBMS.

MBMS comprises multicast pattern and broadcast mode, and wherein 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 pattern and broadcast mode exist on business demand, cause also difference of operation flow separately, as shown in Figures 2 and 3, Fig. 2 is the operation flow schematic diagram of MSMS multicast pattern, Fig. 3 is the operation flow schematic diagram of MSMS broadcast mode.

As shown in Figure 2, the processing procedure that relates to of MBMS multicast service comprises: signatory (Subscription), service declaration (Service announcement), user add that (Joining), session begin (Session Start), MBMS notice (MBMS notification), data transmit (Data transfer), conversation end (SessionStop) and user and withdraw from (Leaving).Wherein, signatory process is used for setting up the relation between user and the service supplier, allows the user subscribe to required MBMS service in advance; Service declaration process is used for promptly notifying user MBMS the relevant information of business by the current service that can provide of BM-SC declaration; User's adition process is a MBMS activation of service process, UE is in adition process, informing network self is ready to become the member of current multicast group, receives the data of corresponding MBMS business, and this adition process can be created the MBMS UE context of record UE information in the UE of network and adding multicast group; Session begins in the process, and BM-SC is ready to transfer of data, and informing network is set up the bearing resource of corresponding core net and Access Network; The MBMS notification procedure is used for being about to begin by RNC notice UE MBMS multicast conversation; In data transfer procedure, BM-SC transfers data to UE by the bearing resource that session begins to set up in the process, the MBMS business has two kinds of patterns when transmitting between UTRAN and UE: point-to-multipoint (PTM) pattern and point-to-point (PTP) pattern, the PTM pattern sends identical data by MBMS point-to-multipoint service channel (MTCH), all add multicast service or can receive the interested UE of broadcasting service, ptp mode sends data by the DTCH logic channel, has only a corresponding UE to receive; The conversation end process is used for the bearing resource that the session process that begins is set up is discharged; The user withdraws from 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.

As shown in Figure 3, processing procedure that the MBMS broadcasting service relates to and MBMS multicast service are similar, just before session begins, do not need to carry out signatory process and user's adition process, and, after conversation end, do not need to carry out the user and withdraw from process.

In MBMS PTM transmission mode, relevant controlled in wireless information comprises business information, access information, radio bearer information, frequency layer convergence (FLC) information etc., is all sent to multiple spot control channel (MCCH) by logic channel such as MBMS point by Radio Resource control (RRC) layer.Usually, MCCH information is based on that the mode of fixed schedule transmits, and in order to improve reliability and stability, UTRAN can repeat to send MCCH information.Fig. 4 is a MCCH transmission of Information scheduling graph, and as shown in Figure 4, the cycle that repeats to send MCCH information is repetition period (RP), and complete MCCH information can periodically be sent according to the repetition period.The modification cycle, (MP) then was defined as the repetition period of integral multiple, all will make amendment to MCCH information in each modification cycle.The access information of MBMS can periodically be sent according to the access information cycle, and the access information cycle is that the integer of repetition period is cut apart.The MCCH scheduling is consistent for all business.

MCCH information is divided into key message and non-critical information again, wherein, key message is made up of MBMS information of adjacent cells (MBMS neighboring cell information), MBMS business information (MBMS serviceinformation), MBMS radio bearer information (MBMS radio bearer information), periodically transmit with repetition period and modification cycle, key message can not change in each modification cycle; Non-critical information is meant MBMS access information (MBMS access information), transmits at access period, and access information can be revised at any time, and the square that black is filled among Fig. 4 is represented change information.

At present, the MBMS system is an important attribute of 3GPP Release6 version, in other words is exactly, and the MBMS technology is attached to existing 3G system, the MBMS business is carried by existing transmission channel and physical channel, uses existing frequency and bandwidth etc.Specifically, referring to shown in Figure 5, providing of MBMS business can be divided into three phases (phase):

Phase I is the period before session begins, and in this stage, network does not provide any MBMS business, and the user may constantly attempt reading the MBMS announcement information, and in this stage, the user can add any business at any time.

To be UTRAN receive session (Session Start) sets up radio bearer (RB) to UTRAN for this business till from core net second stage.It is professional and carry out counting (counting) process to MBMS is professional to notify the user to receive MBMS at this stage UTRAN, so that the decision bearer types.UE can respond counting in this stage, receives the MCCH control channel to obtain the phase related control information.

Three phases is the of paramount importance stage of MBMS, and in this stage, the user begins to receive the MBMS business, obtains session until UTRAN from core net and stops (Session Stop).

From the angle of UTRAN, the professional process of transmitting of MBMS may further comprise the steps as shown in Figure 6:

Step 601.UTRAN obtains session (Session Start) indication of certain MBMS service conversation from CN;

Step 602.UTRAN determines whether this MBMS business is carried out the counting flow process as required, to determine its bearing mode;

Step 603. is respectively on the MCCH channel and on the MBMS informing indication channel (MICH), sends the notice indication that phase related control information and MBMS business change to UE;

Step 604. uses the bearing mode of counting process decision that MBMS is provided business on MTCH;

After step 605. receives that the session of CN transmission stops (Session Stop) indication, UTRAN operates according to the bearing mode of MBMS business: if the MBMS business of PTM carrying, UTRAN stops to receive this MBMS business by MCCH channel notification UE, and discharges the professional corresponding RB of corresponding MBMS; If the MBMS business of carrying by the PTP mode, so, UTRAN initiates to discharge PTPRB, and upgrades the information on the MCCH, guarantees that the UE that the back is inserted correctly receives information.

From the angle of UE, the professional receiving course of MBMS may further comprise the steps as shown in Figure 7:

Step 701～702. users subscribe to certain MBMS business, and add this MBMS business;

Step 703.UE monitoring MICH channel and MCCH channel obtain the professional indication information that changes, and wherein, UE monitoring MICH channel is optional;

If counting is carried out in step 704. network requirement, then UE need respond according to network requirement, here, described UE can be the UE that is under different mode, the different conditions, such as: be in free time (Idle) pattern, be in the RRC connection mode the CELL_PCH state, be in the RRC connection mode the CELL_FACH state, be in the URA_PCH state of RRC connection mode; Whether needing to carry out counting can carry in changing indication information;

When step 705. finds that as UE the own MBMS business that is added changes, the business control information after receiving the variation that UTRAN sends on the MCCH control channel just, wherein, comprise add the information such as carrying presentation mode of MBMS business, such as PTM RB information, PTP RB information;

After step 706.UE receives corresponding control information, if the MBMS business that is added provides by the PTM mode, then UE receives the MBMS business on MBMS Traffic Channel MTCH, otherwise UE goes up the MBMS business that receives by the PTP mode in Dedicated Control Channel (DCCH);

Step 707.UE stops to receive this MBMS business after receiving that UTRAN receives the MBMS service announcements by stopping of sending of MCCH channel or DCCH channel.

In the MBMS system, when certain MBMS business will provide or have information to change, need finish by the MBMS service announcements process of special use.That is to say, MBMS service announcements process is used for the announcement information that the UE response to network is initiated, variation has taken place in one or more MBMS business that this announcement information is used to indicate UE to add, this announcement information is sent to all UE, no matter which kind of state UE is in, that is: no matter UE is in URA_PCH state, CELL_PCH state, CELL_FACH state or the CELL_DCH state that idle pulley still is in the RRC connection mode.MBMS service announcements process is mainly finished by MICH channel and MCCH channel, specifically is divided into: notice flow process on the common signal channel and the notice flow process on the dedicated channel.

As shown in Figure 8, the notification procedure on the MCCH Common Control Channel comprises: UTRAN sends MBMS by the MCCH channel to UE and revises business information; And pass through the MCCH channel to the control information of UE transmission update MBMS.Accordingly, notification received process comprises: UE monitoring MCCH channel or monitoring MCCH channel and MICH channel, specifically, for being in idle pulley or being in the UE of URA_PCH state, CELL_PCH state, CELL_FACH state or the CELL_DCH state of RRC connection mode, if when receiving the MBMS business of using PTM RB carrying, then need to monitor the MICH channel and obtain announcement information; If receive to use the MBMS business of PTM RB carrying, and do not monitor the MICH channel, or when receiving MBMS PTM RB loaded service, then need to catch the modification information on the MCCH channel, promptly obtain announcement information.

As shown in Figure 9, the notification procedure on the DCCH channel comprises: UTRAN sends MBMS by the DCCH channel to UE and revises business information; And pass through the MCCH channel to the control information of UE transmission update MBMS.Dedicated notification procedure is to use the frequency information of DCCH channel notification UE MBMS business, notice UE PTM RB bearer setup message, or ask the UE that is in the PMM idle condition to change the PMM connection status over to, to receive by PTP RB loaded service.Generally, receive general service paging and MBMS service announcements process for UE, the priority of general service paging is higher.

For the counting flow process of mentioning in the professional process of transmitting of MBMS, the counting of stipulating in the agreement is to receive professional particular user number in the sub-district in order to add up at present, thereby obtain correct, for the bearing mode of certain MBMS business, to guarantee effective utilization of idle wireless resource.Carry out to count again in the process in the MBMS business.The counting flow process may further comprise the steps:

A1, when certain MBMS service conversation begins, UTRAN notice UE responds counting according to the requirement of network.Wherein, whether needing to carry out counting, which UE and need carry out information such as counting, UE access probability factor, as shown in figure 10, all is periodically to send to UE's by UTRAN by the MBMS access information on the MCCH channel.

The UE here is in idle pulley or is in UE under URA_PCH state, CELL_PCH state, CELL_FACH state or the CELL_DCH state of RRC connection mode.

A2, the UE that is under the idle condition set up the RRC connection, and the UE that is under CELL_PCH and the URA_PCH state initiates cell updating course response counting.

A3, UTRAN add up the number of users in the present MBMS business contexts (Context), have surpassed predetermined thresholding if find number of users, and then this MBMS business will adopt the bearing mode of PTM in this sub-district this moment, broadcast by common signal channel; If the not enough thresholding of number of users, then this MBMS business will adopt the bearing mode of PTP in this sub-district, carry out transfer of data by setting up dedicated channel with UE.

Because the type of service that relates to of MBMS system is quite a lot of, to real time business such as video tour etc., along with increasing gradually of provider, professional number can constantly increase from background service such as software download.But what MBMS used at present all is existing WCDMA resource, that is: use is existing transmission channel and physical channel, and such consequence is exactly to have taken a large amount of existing Radio Resources.So, just there is the influence of two aspects: be that existing other business can be subjected to great influence on the one hand; Be that the type of service that the MBMS business can provide simultaneously has been subjected to restriction greatly on the other hand.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of MBMS method for transmitting service, can do not influence other professional in, provide type abundant MBMS business.

Another object of the present invention is to provide a kind of MBMS service receiving method, make UE from the MBMS business that the type that is provided is enriched, receive required MBMS business by self-demand.

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

A kind of multi-medium broadcast/group broadcast service MBMS method for transmitting service, this method may further comprise the steps:

A1. the network side MBMS carrier information notice UE that will distribute separately, described MBMS carrier wave is the dedicated frequency section;

A2. after network side receives that the session of MBMS service conversation begins indication, determine the bearing mode of current MBMS business;

A3. network side sends business control information and indication information to UE, and sets up carrying according to determined bearing mode, adopts the MBMS carrier wave that is distributed to transmit current MBMS business to UE.

This method further comprises step a4: network side discharges corresponding radio bearer according to determined bearing mode after receiving that session stops indication.

In the such scheme, further comprise before the step a1: dedicated frequency section of network selecting is as the MBMS carrier wave of distributing to the MBMS business separately.The carrier information of MBMS described in the step a1 is by broadcast channel or control channel notice UE.

In the such scheme, the bearing mode of the described definite MBMS business of step a2 is network side is determined the MBMS business by counting counting flow process a bearing mode; Or directly determine the bearing mode of MBMS business according to the MBMS type of service.Network side is determined the bearing mode of MBMS business by counting the counting flow process among the step a2, and described counting flow process is being carried out on the MBMS carrier wave, carried out on the non-MBMS carrier wave or carrying out on MBMS carrier wave and two carrier waves of non-MBMS carrier wave.Wherein, network side determines that according to offered load and/or service feature the counting flow process carrying out on the MBMS carrier wave, carrying out on the non-MBMS carrier wave or carrying out on MBMS carrier wave and two carrier waves of non-MBMS carrier wave.

In the such scheme, the professional indication information that changes of MBMS described in the step a3 adopts the MBMS carrier wave to send; Or described business control information adopts the MBMS carrier wave to send; Or business control information and the professional all employings MBMS carrier wave transmission that changes of indication information MBMS.Business control information described in the step a3 adopts MBMS carrier wave and each transmission part of non-MBMS carrier wave.

In the such scheme, network side receives the MBMS business on the MBMS carrier wave session begins indication and/or session stops indication.

In the such scheme, further comprise among the step a4: network side sends to UE and stops to receive the MBMS service announcements, describedly stops to receive the MBMS service announcements and adopts the MBMS carrier wave to send.Further comprise among the step a4: network side is by showing signaling UE releasing wireless loading.Further comprise after the step a4: whether the network side decision indicates the UE switching frequency, if then send the indication information or the transmission that comprise assigned frequency to UE and comprise the indication information that appointment UE carries out the frequency selection algorithm that adopts.Wherein, network side sends indication information to UE on the MBMS carrier wave.

This method further comprises: the MBMS carrier information that network side adopts the MBMS carrier wave to distribute separately to the UE notice.

The present invention also discloses a kind of MBMS service receiving method, it is characterized in that, network side distributes independent MBMS carrier wave and send the MBMS business on the MBMS carrier wave that is distributed, and described MBMS carrier wave is the dedicated frequency ripple; This method also comprises:

The b21.UE subscription also adds current MBMS business;

B22.UE receives the business control information and the indication information of current MBMS business;

B23.UE receives current MBMS business according to the bearing mode of determining on the MBMS carrier wave.

This method further comprise step b24:UE receive stop to receive the MBMS service announcements after, it is professional and discharge the respective wireless carrying to stop to receive current MBMS.

In the such scheme, described network side distributes independent MBMS carrier wave and send the MBMS business on the MBMS carrier wave and specifically comprises:

B11. the network side MBMS carrier information notice UE that will distribute separately;

B12. after network side receives that the session of MBMS service conversation begins indication, determine the bearing mode of current MBMS business;

B13. network side sends business control information and the professional indication information that changes of MBMS to UE, and sets up carrying according to determined bearing mode, adopts the MBMS carrier wave that is distributed to transmit current MBMS business to UE.

This method further comprises step b14: network side discharges corresponding radio bearer according to determined bearing mode after receiving that session stops indication.

The professional indication information that changes of MBMS described in the step b13 adopts the MBMS carrier wave to send; Or described business control information adopts the MBMS carrier wave to send; Or the indication information of business control information and the professional variation of MBMS all adopts the MBMS carrier wave to send; Then among the step b22, UE receives the professional indication information that changes of MBMS, receives business control information or receives business control information and the professional indication information that changes of MBMS on the MBMS carrier wave.

Business control information described in the step b13 adopts MBMS carrier wave and each transmission part of non-MBMS carrier wave; Then among the step b22, UE receives a part of business control information respectively on MBMS carrier wave and non-MBMS carrier wave.

In the such scheme, among the step b21, UE adopts the professional and/or adding MBMS business of MBMS carrier wave subscribing MBMS.

In the such scheme, further comprise before the step b23: UE has judged whether that other business carries out, if do not have, then UE switches to MBMS carrier wave, execution in step b23 with self frequency; If have, judge again to receive the professional also right and wrong MBMS business of MBMS, if receive the MBMS business, then UE switches to the MBMS carrier wave with self frequency, execution in step b23, otherwise, process ends.Wherein, described other business that judged whether is specially: UE determines whether to exist other non-MBMS business by paging; And/or determine whether to exist other MBMS business by the MBMS control information.

In the such scheme, indication discharges the respective wireless carrying to UE according to network side among the step b24, or decides the carrying of release respective wireless in its sole discretion.Further comprise after the step b24: indication switches on the specified frequency UE according to network side, and perhaps UE selects to switch on the selected frequency according to self.Wherein, the frequency that described UE will switch to is the original frequency of UE self, or adopts and satisfy the definite frequency of algorithm that UE is evenly spread to each frequency.

MBMS method for transmitting service provided by the present invention and method of reseptance adopt the carriers carry MBMS business of distributing separately, so, have following significant beneficial effect:

On the one hand, the MBMS business need not to take existing Radio Resource, just can not influence the normal operation of other business yet, be convenient to mobile communication system to utilization of resources, simultaneously from operator's angle, fully, effectively and reasonably utilize Radio Resource, its beneficial effect is far longer than paying of independent frequency spectrum;

On the other hand, make the MBMS business that sufficient Radio Resource be arranged, thereby can allow the MBMS system can provide type abundant MBMS business.Especially, along with the development of communication from now on, multimedia service business such as mobile TV will become main flow gradually, it will be the maximum attraction of operator that colourful MBMS business is provided on mobile phone, have only the independent carrier wave of distribution could carry more MBMS business, just can make the MBMS type of service more rich and varied.And in the present invention, UE can select oneself to want most the business that receives, therefore, make UE can receive MBMS business abundant, at a high speed according to the demand of oneself, and in time notify UE when arriving in that non-MBMS is professional, it is professional or other is professional to guarantee that UE receives the MBMS that oneself wants most.

Description of drawings

Fig. 1 is for supporting the wireless network architecture schematic diagram of broadcasting/packet service;

Fig. 2 is the operation flow schematic diagram of MSMS multicast pattern;

Fig. 3 is the operation flow schematic diagram of MSMS broadcast mode;

Fig. 4 is the schematic diagram of MCCH message scheduling;

Fig. 5 is MBMS system communication process schematic diagram in the existing R6 version;

Fig. 6 is the professional process of transmitting schematic diagram of the MBMS of UTRAN side in the prior art;

Fig. 7 is the professional receiving course schematic diagram of the MBMS of UE side in the prior art;

Fig. 8 realizes MBMS service announcements process schematic diagram on the MCCH channel;

Fig. 9 realizes MBMS service announcements process schematic diagram on the DCCH channel;

Figure 10 is a counting process schematic diagram in the MBMS system;

Figure 11 is the professional process of transmitting schematic diagram of the MBMS of UTRAN side among the present invention;

Figure 12 is the professional receiving course schematic diagram of the MBMS of UE side among the present invention.

Embodiment

Main thought of the present invention is: introduce new carriers carry MBMS business, that is to say, adopt the frequency band MBMS transmission business of distributing separately.Among the present invention, will adopt the system of independent distributing carrier wave carrying MBMS business to be called single carrier MBMS system, the frequency band that distributes be called the MBMS carrier wave separately, and other frequency band is called non-MBMS carrier wave such as normally used frequency band in the prior art.Realization prerequisite of the present invention is: UE is supported on a plurality of frequency bands and receives.

From the professional receiving course of MBMS of professional process of transmitting of the MBMS of existing UTRAN side and UE side as can be seen, between UTRAN and UE, also relate to a lot of interactive operations, comprise upstream operation and downstream operation, such as: UTRAN to UE send control information, indication information, session begin/stop indication; UE subscribing MBMS business, UE add MBMS business or the like.Therefore, the most basic way of the present invention is: only adopt MBMS carrier transmission MBMS business, but further, UTRAN sends various information, indicates and also can adopt the MBMS carrier transmission to UE, the MBMS carrier wave can be all adopted in all information that UTRAN sends, indication, or the employing MBMS carrier wave that has, the non-MBMS carrier wave of employing that has, such as: session begins/stops indication and adopts the MBMS carrier wave, and business control information adopts non-MBMS carrier wave etc.; Equally, UE subscribing MBMS business, adding MBMS business etc. also can adopt the MBMS carrier wave.UTRAN can also respectively send the part of certain information, indication the while at MBMS carrier wave and non-MBMS carrier wave, accordingly, UE just switches between two kinds of frequencies back and forth, receive the information of sending on the different carrier, when which frequency range receiving information UTRAN in as for UE can be by the professional indication prior notice that changes, how UE switches on different frequency range belongs to prior art, does not repeat them here.

Further specify the implementation procedure of the inventive method below in conjunction with some specific embodiments.

Embodiment one:

In the present embodiment, only adopt MBMS carrier transmission MBMS business, other interactive operation is all finished on non-MBMS carrier wave.

The present invention adopts that the method for separate carrier carrying MBMS business is actual to comprise two parallel flow processs: the professional receiving course of MBMS of professional process of transmitting of the MBMS of UTRAN side and UE side.

From the angle of UTRAN, the professional process of transmitting of MBMS may further comprise the steps as shown in figure 11:

Step 1101～1102: special frequency band conduct of network selecting is used for the MBMS carrier wave of MBMS transmission business, and with selected MBMS carrier information notice UE.

Here, network generally selects suitable frequency band to distribute to the MBMS business separately according to the demand of operator; Can any time selection before the professional beginning of MBMS, also can be when the network planning, according to network size, network characterization, network have frequency range what or the like information choose the MBMS carrier wave in advance, if when the network planning, determine, then step 1101 can be omitted, as long as each MBMS transmission is notified the MBMS carrier wave of the current use of UE when professional.Even be not that the network planning is good, select the dedicated frequency section of MBMS business all to carry out when MBMS transmission is professional at every turn, after the MBMS carrier wave is selected can be constant, also can reselect again as required, but do not need frequent gravity treatment, as long as each MBMS transmission is notified the MBMS carrier wave of the current use of UE when professional.

In the present embodiment, corresponding two the downstream frequency sections of upstream frequency section, network side need carry out co-ordination to selected frequency band and original up-downgoing frequency band, specifically concerning the MBMS business be exactly, UTRAN will receive information a upstream frequency section, and in professional control information, the indication relevant with sending business of MBMS transmission respectively of two downstream frequency sections.

In the step 1102, UTRAN can notify UE MBMS carrier information by broadcast channel, also can notify UE by other control channel, at this moment, and the right and wrong MBMS carrier wave that UTRAN adopts.

Certainly, if described MBMS carrier wave is definite when the network planning, and UE is known, then this step can be omitted, and that is to say, need not again by eating dishes without rice or wine MBMS carrier wave notice UE.

Step 1103:UTRAN begins indication from the session that CN obtains certain MBMS service conversation.

Whether step 1104:UTRAN decision carries out counting to current MBMS business, to determine the bearing mode of this MBMS business.

Here, whether UTRAN can carry out the counting process according to the type of service decision; Can directly certain MBMS business not determined its bearer types according to the type of service of MBMS by the counting process yet, such as: professional decision adopts PTM RB mode to carry for certain specific MBMS.

Step 1105:UTRAN sends the control information and the professional indication information that changes of MBMS business to UE by MCCH channel and MICH channel.

Step 1106:, initiate the PTM loading establishing process between UTRAN and the UE, and UTRAN adopts MBMS carrier transmission MBMS business on the MTCH channel if PTM transmission bearer mode is adopted in decision; If PTP transmission bearer mode is adopted in decision, initiate the process that the PTP carrying is set up between UTRAN and the UE.

After step 1107:UTRAN receives that the session of CN transmission stops indication, UTRAN operates according to the bearing mode of MBMS business: if the MBMS business of PTM carrying, UTRAN stops to receive this MBMS business by MCCH channel notification UE, and discharges the professional corresponding RB of corresponding MBMS; If the MBMS business of carrying by the PTP mode, so, UTRAN initiates to discharge PTP RB, and upgrades the information on the MCCH, guarantees that the UE that the back is inserted correctly receives information.

In this step, UTRAN can also be by showing signaling UE releasing wireless loading.

Whether step 1108:UTRAN decision indicates the UE switching frequency, if then UTRAN sends the indication information that comprises assigned frequency or sends to comprise to UE and specifies UE to carry out the indication information that frequency is selected the algorithm that adopts.Wherein, described assigned frequency can be the original frequency of UE, also can be the frequency that the UTRAN side will be returned by the definite UE of certain algorithm, described UTRAN determines the algorithm that frequency adopts or specifies the algorithm that UE adopted be the algorithm that can guarantee UE is evenly spread to each frequency.

Here, UTRAN can send indication on the MBMS carrier wave, also can send on non-MBMS carrier wave, and this step is optional.Whether UTRAN can indicate UE to be transferred to corresponding frequencies according to the decision of factors such as offered load situation, and how to indicate UE to be transferred to corresponding frequencies.

From the angle of UE, the professional receiving course of MBMS may further comprise the steps as shown in figure 12:

Step 1201～1202:UE subscribing MBMS business, and add this MBMS business;

Step 1203:UE monitoring MICH channel and/or MCCH channel obtain the professional indication information that changes;

Step 1204: if counting is carried out in network requirement, then UE need respond according to network requirement; Here, described UE can be the UE that is under different mode, the different conditions, such as: be in free time (Idle) pattern, be in the RRC connection mode the CELL_PCH state, be in the RRC connection mode the CELL_FACH state, be in the RRC connection mode the URA_PCH state, be in the CELL_DCH state of RRC connection mode; And UE responds the counting process according to the ability needs of self.

Step 1205: change if UE finds the MBMS business that oneself adds, the business control information of UE after receiving the variation that UTRAN sends on the MCCH channel then, wherein, comprise add the information such as carrying presentation mode of MBMS business, such as PTM RB, PTP RB.

Step 1206～1208: judged whether that other business carries out, if do not have, then execution in step 1209; If have, UE can determine to receive the professional also right and wrong MBMS business of MBMS according to service priority, if right and wrong MBMS business, then UE receives non-MBMS business, process ends on non-MBMS carrier wave; If the MBMS business, then execution in step 1209.

Here, can not judge yet, promptly do not consider other business, the professional just directly reception of MBMS is arranged.In this case, step 1206～1208 just can be omitted.

Judged whether described in the step 1206 that other business carries out, UE can determine whether to exist other non-MBMS business by paging, carries out the selection of priority between the professional and non-MBMS business of MBMS then; Can certainly know whether there is other MBMS business by the MBMS control information, and between the MBMS business, carry out the selection of service priority.

UE needs to consider the professional and non-MBMS business of MBMS carrying out service priority when selecting, if the MBMS business is to want the business that receives most, then UE forwards reception MBMS business on the MBMS carrier wave to; If non-MBMS business is to want the business that receives most, then UE need not carry out frequency re-selections and selects, and neglects the control information of relevant MBMS business; If UE in a plurality of MBMS business, wants that the business that receives does not also provide at present most, UE also can not forward the MBMS carrier wave to and get on.

Step 1209:UE decision receives the MBMS business, and on the MBMS carrier wave, so, UE switches to the MBMS carrier wave with the receive frequency of self earlier, receives the MBMS business again on the MBMS carrier wave, and, UE determines receive channel according to the control information that is received: if this MBMS business provides by the PTM mode, then receive the MBMS business on the MTCH channel, if provide, then receive the MBMS business at the DCCH channel by the PTP mode.

Step 1210:UE stops to receive current MBMS business after receiving that UTRAN receives the MBMS service announcements by stopping of sending of MCCH channel or DCCH channel, according to the clearly indication of UTRAN side or decide in its sole discretion and discharge RB.

Wherein, UE decides the method that discharges RB in its sole discretion can adopt the timer mode, and a timer is set, and general timer can start when receiving that session begins to indicate, and timer then discharges RB; If or be set in and do not receive the MBMS business in a period of time and just discharge RB.

During step 1211:MBMS service ending, UE switches on the non-MBMS carrier wave according to indication or self selection of UTRAN side.

Here, described non-MBMS carrier wave can be the original frequency of UE; It also can be the frequency that to return by the UE that the UTRAN side is determined by certain algorithm; Can also be that UE oneself finishes the frequency that self will return that the back is determined according to certain algorithm professional reception of MBMS, wherein the algorithm of being mentioned can be stochastic selection algorithm, hash algorithm or the like, can so long as can guarantee that UE is evenly spread to the algorithm of each frequency.That is to say that UE is according to the indication of UTRAN side or the selection of self, return self original frequency after finishing, or switch on the definite frequency of UTRAN side specified frequency or UE oneself professional reception of MBMS.

In the step 1211, the indication that the UTRAN side sends to UE can be a specified frequency; Also can be to specify UE to carry out the algorithm that the frequency selection is adopted, if assignment algorithm, UE then uses the algorithm of appointment to carry out frequency and selects, and switches to afterwards on the frequency of oneself determining again.

In actual applications, the described counting process of step 1204 also can be placed on after the step 1207, before the step 1209, that is to say, can receive the MBMS business in definite UE decision, and after on the MBMS carrier wave, receiving, determine the bearing mode of MBMS business again by the counting flow process.

Embodiment two:

In the present embodiment, UTRAN adopts the MBMS carrier wave to send the relevant indication information of counting, and on the MBMS carrier wave MBMS business is carried out counting, and then step 1104 just becomes step 1104 ':

Step 1104 ': UTRAN is on the MBMS carrier wave, and whether decision carries out counting to current MBMS business as required, to determine the bearing mode of this MBMS business.Be exactly specifically, if desired current MBMS business carried out counting, then UTRAN sends the MBMS access information on the MBMS carrier wave, carries the indication information that need carry out counting in the MBMS access information.

Counting process between UTRAN and the UE can be finished on the MBMS carrier wave, also can on MBMS carrier wave and two carrier waves of non-MBMS carrier wave, finish respectively, such as: counting is provided on non-MBMS carrier wave indication, on the MBMS carrier wave, specifically finishes counting operation.

Embodiment three:

In the present embodiment, UTRAN adopts the MBMS carrier wave to send the professional indication information that changes of MBMS by the MICH channel to UE, and corresponding, UE receives the professional change information of network indication on the MBMS carrier wave.So, step 1105 becomes step 1105 ':

Step 1105 ': UTRAN adopts the MBMS carrier wave by the indication information of MICH channel to UE transmission MBMS business, adopts non-MBMS carrier wave to send the business control information of MBMS business to UE by the MCCH channel.

Accordingly, step 1203 becomes step 1203 ':

Step 1203 ': UE monitoring MICH channel and/or MCCH channel obtain the professional indication information that changes on the MBMS carrier wave.

Embodiment four:

In the present embodiment, UTRAN adopts the MBMS carrier wave by the business control information of MCCH channel to UE transmission MBMS business, and corresponding, UE receives the business control information that network provides on the MBMS carrier wave.So, step 1105 becomes step 1105 ":

Step 1105 ": UTRAN adopts the MBMS carrier wave by the business control information of MCCH channel to UE transmission MBMS business, adopts non-MBMS carrier wave to send the indication information of MBMS business to UE by the MICH channel.

Accordingly, step 1205 becomes step 1205 ':

Step 1205 ': if finding the MBMS business that oneself adds, UE changes, the business control information of UE receive the variation that UTRAN sends on the MCCH channel by the MBMS carrier wave after then, wherein, comprise add the information such as carrying presentation mode of MBMS business, such as PTM RB, PTP RB.

In the present embodiment, UTRAN can respectively send a part of business control information on MBMS carrier wave and two carrier waves of non-MBMS carrier wave, and corresponding, UE can respectively receive a part of business control information on two carrier waves.

Embodiment five:

In the present embodiment, UTRAN adopts the MBMS carrier wave to send professional indication information and the business control information that changes of MBMS to UE, and is corresponding, and UE is at the professional change information that receives the network indication on the MBMS carrier wave with the business control information after changing.So, step 1105 becomes step 1105 " ':

Step 1105 " ': UTRAN adopts the MBMS carrier wave to send the control information and the indication information of MBMS business to UE by MCCH channel and MICH channel.

Accordingly, step 1203 becomes step 1203 ':

Step 1205 becomes step 1205 ':

In the present embodiment, for business control information, UTRAN can respectively send a part of business control information on MBMS carrier wave and two carrier waves of non-MBMS carrier wave, and corresponding, UE can respectively receive a part of business control information on two carrier waves.

Embodiment six:

In the present embodiment, UTRAN on the MBMS carrier wave, receive session begin the indication and/or session stop the indication, then step 1103 and/or step 1107 become respectively:

Step 1103 ': UTRAN is on the MBMS carrier wave, and the session that obtains certain MBMS service conversation from CN begins indication.

Step 1107 ': UTRAN is after the session that receives the CN transmission on the MBMS carrier wave stops indication, UTRAN operates according to the bearing mode of MBMS business: if the MBMS business of PTM carrying, UTRAN stops to receive this MBMS business by MCCH channel notification UE, and discharges the professional corresponding RB of corresponding MBMS; If the MBMS business of carrying by the PTP mode, so, UTRAN initiates to discharge PTP RB, and upgrades the information on the MCCH, guarantees that the UE that the back is inserted correctly receives information.

Embodiment seven:

In the present embodiment, UTRAN adopts the MBMS carrier wave to stop to receive the MBMS business by MCCH channel notification UE, and then step 1107 becomes step 1107 ":

Step 1107 ": after UTRAN receives that the session of CN transmission stops indication; UTRAN operates according to the bearing mode of MBMS business:, and discharge the RB of the professional correspondence of corresponding MBMS if the MBMS business of PTM carrying; UTRAN adopts the MBMS carrier wave to stop to receive this MBMS business by MCCH channel notification UE; If the MBMS business of carrying by the PTP mode, so, UTRAN initiates to discharge PTP RB, and upgrades the information on the MCCH, guarantees that the UE that the back is inserted correctly receives information.

Embodiment eight:

In the present embodiment, UTRAN sets up PTM carrying or PTP carrying on the MBMS carrier wave, and so, step 1106 just becomes step 1106 ':

Step 1106 ': if PTM transmission bearer mode is adopted in decision, initiate the PTM loading establishing process between UTRAN and the UE, on the MBMS carrier wave, set up the PTM carrying, and UTRAN adopts on the MTCH channel MBMS carrier wave that MBMS is provided business; If PTP transmission bearer mode is adopted in decision, initiate the process that the PTP carrying is set up between UTRAN and the UE, on the MBMS carrier wave, set up the PTP carrying.

Embodiment nine:

In the present embodiment, UE adopts the professional and/or adding MBMS business of MBMS carrier wave subscribing MBMS, and then step 1201 and/or step 1202 become: UE adopts MBMS carrier wave subscribing MBMS business, and/or UE adopts the MBMS carrier wave to add the MBMS business.

Embodiment nine:

Based on embodiment three, four, five, adopt the MBMS carrier wave when UE sends indication information and/or business control information at UTRAN, UTRAN can further adopt the MBMS carrier wave to send the MBMS carrier information that once distributes separately to UE again.

UTRAN can notify UEMBMS carrier information by broadcast channel, also can be by other control channel notice UE.

Embodiment ten:

In the present embodiment, UTRAN can further determine to carry out counting on non-MBMS carrier wave according to factors such as offered load, service features, still carries out on the MBMS carrier wave, still all carries out two frequencies.

For above-mentioned ten described various implementations of embodiment, can distinguish independent utility, also applied in any combination mutually.Such as: can be only to adopt MBMS carrier transmission MBMS business, UTRAN be all the same with prior art with all the other all interactive operations between the UE, finishes at original frequency band; Also can be that MBMS transmission business, MBMS business control information all adopt the MBMS carrier wave, or MBMS transmission business, MBMS business control information, UE subscribing MBMS business, UE add the MBMS business and all adopt MBMS carrier wave or the like.In a word, can make up mutually arbitrarily, further form new implementation based on one, ten embodiment of embodiment.

Method of the present invention can be applicable in the mobile communication system such as WCDMA, CDMA2000, UTRA TDD and TD-SCDMA, and the above only is preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.

Claims

1, a kind of multi-medium broadcast/group broadcast service MBMS method for transmitting service is characterized in that this method may further comprise the steps:

A3. network side sends business control information and the professional indication information that changes of MBMS to UE, and sets up carrying according to determined bearing mode, adopts the MBMS carrier wave that is distributed to transmit current MBMS business to UE.

2, method according to claim 1 is characterized in that, this method further comprises:

A4. after network side receives that session stops indication, discharge corresponding radio bearer according to determined bearing mode.

3, method according to claim 1 and 2 is characterized in that, further comprises before the step a1: dedicated frequency section of network selecting is as the MBMS carrier wave of distributing to the MBMS business separately.

4, method according to claim 1 and 2 is characterized in that, the carrier information of MBMS described in the step a1 is by broadcast channel or control channel notice UE.

5, method according to claim 1 and 2 is characterized in that, the bearing mode of the described definite MBMS business of step a2 is network side is determined the MBMS business by counting counting flow process a bearing mode; Or directly determine the bearing mode of MBMS business according to the MBMS type of service.

6, method according to claim 1 and 2, it is characterized in that, network side is determined the bearing mode of MBMS business by counting the counting flow process among the step a2, and described counting flow process is being carried out on the MBMS carrier wave, carried out on the non-MBMS carrier wave or carrying out on MBMS carrier wave and two carrier waves of non-MBMS carrier wave.

7, method according to claim 6, it is characterized in that network side determines that according to offered load and/or service feature the counting flow process carrying out on the MBMS carrier wave, carrying out on the non-MBMS carrier wave or carrying out on MBMS carrier wave and two carrier waves of non-MBMS carrier wave.

8, method according to claim 1 and 2 is characterized in that, the professional indication information that changes of MBMS described in the step a3 adopts the MBMS carrier wave to send; Or described business control information adopts the MBMS carrier wave to send; Or the indication information of business control information and the professional variation of MBMS all adopts the MBMS carrier wave to send.

9, method according to claim 1 and 2 is characterized in that, business control information described in the step a3 adopts MBMS carrier wave and each transmission part of non-MBMS carrier wave.

10, method according to claim 1 and 2 is characterized in that, network side receives the MBMS business on the MBMS carrier wave session begins indication and/or session stops indication.

11, method according to claim 2 is characterized in that, further comprises among the step a4: network side sends to UE and stops to receive the MBMS service announcements, describedly stops to receive the MBMS service announcements and adopts the MBMS carrier wave to send.

12, method according to claim 2 is characterized in that, further comprises among the step a4: network side is by showing signaling UE releasing wireless loading.

13, method according to claim 2, it is characterized in that, further comprise after the step a4: whether the network side decision indicates the UE switching frequency, if then send the indication information or the transmission that comprise assigned frequency to UE and comprise the indication information that appointment UE carries out the frequency selection algorithm that adopts.

14, method according to claim 13 is characterized in that, network side sends indication information to UE on the MBMS carrier wave.

15, method according to claim 1 and 2 is characterized in that, this method further comprises: the MBMS carrier information that network side adopts the MBMS carrier wave to distribute separately to the UE notice.

16, a kind of MBMS service receiving method is characterized in that, network side distributes independent MBMS carrier wave and send the MBMS business on the MBMS carrier wave that is distributed, and described MBMS carrier wave is the dedicated frequency ripple; This method also comprises:

The b21.UE subscription also adds current MBMS business;

B22.UE receives the business control information and the professional indication information that changes of MBMS of current MBMS business;

17, method according to claim 16 is characterized in that, this method further comprises:

After b24.UE receives and stops to receive the MBMS service announcements, stop to receive current MBMS business and discharge the respective wireless carrying.

18, method according to claim 16 is characterized in that, described network side distributes independent MBMS carrier wave and send the MBMS business on the MBMS carrier wave and specifically comprises:

19, method according to claim 18 is characterized in that, this method further comprises:

B14. after network side receives that session stops indication, discharge corresponding radio bearer according to determined bearing mode.

20, according to claim 18 or 19 described methods, it is characterized in that, further comprise before the step b11: dedicated frequency section of network selecting is as the MBMS carrier wave of distributing to the MBMS business separately.

According to claim 18 or 19 described methods, it is characterized in that 21, the carrier information of MBMS described in the step b11 is by broadcast channel or control channel notice UE.

According to claim 18 or 19 described methods, it is characterized in that 22, the bearing mode of the described definite MBMS business of step b12 is network side is determined the MBMS business by counting counting flow process a bearing mode; Or directly determine the bearing mode of MBMS business according to the MBMS type of service.

23, according to claim 18 or 19 described methods, it is characterized in that, network side is determined the bearing mode of MBMS business by counting the counting flow process among the step b12, and described counting flow process is being carried out on the MBMS carrier wave, carried out on the non-MBMS carrier wave or carrying out on MBMS carrier wave and two carrier waves of non-MBMS carrier wave.

24, method according to claim 23, it is characterized in that network side determines that according to offered load and/or service feature the counting flow process carrying out on the MBMS carrier wave, carrying out on the non-MBMS carrier wave or carrying out on MBMS carrier wave and two carrier waves of non-MBMS carrier wave.

According to claim 18 or 19 described methods, it is characterized in that 25, the professional indication information that changes of MBMS described in the step b13 adopts the MBMS carrier wave to send; Or described business control information adopts the MBMS carrier wave to send; Or the indication information of business control information and the professional variation of MBMS all adopts the MBMS carrier wave to send;

Then among the step b22, UE receives the professional indication information that changes of MBMS, receives business control information or receives business control information and the professional indication information that changes of MBMS on the MBMS carrier wave.

According to claim 18 or 19 described methods, it is characterized in that 26, business control information described in the step b13 adopts MBMS carrier wave and each transmission part of non-MBMS carrier wave;

Then among the step b22, UE receives a part of business control information respectively on MBMS carrier wave and non-MBMS carrier wave.

According to claim 18 or 19 described methods, it is characterized in that 27, network side receives the MBMS business on the MBMS carrier wave session begins indication and/or session stops indication.

28, method according to claim 19 is characterized in that, further comprises among the step b14: network side sends to UE and stops to receive the MBMS service announcements, describedly stops to receive the MBMS service announcements and adopts the MBMS carrier wave to send.

29, method according to claim 19 is characterized in that, further comprises among the step b14: network side is by showing signaling UE releasing wireless loading.

30, method according to claim 19, it is characterized in that, further comprise after the step b14: whether the network side decision indicates the UE switching frequency, if then send the indication information or the transmission that comprise assigned frequency and comprise the indication information that appointment UE carries out the frequency selection algorithm that adopts to UE.

31, method according to claim 30 is characterized in that, network side sends indication information to UE on the MBMS carrier wave.

32, according to claim 18 or 19 described methods, it is characterized in that, further comprise in the professional transmission flow of MBMS: the MBMS carrier information that network side adopts the MBMS carrier wave to distribute separately to the UE notice.

According to each described method of claim 16 to 19, it is characterized in that 33, among the step b21, UE adopts the professional and/or adding MBMS business of MBMS carrier wave subscribing MBMS.

34, according to each described method of claim 16 to 19, it is characterized in that, further comprise before the step b23: UE has judged whether that other business carries out, if do not have, then UE switches to MBMS carrier wave, execution in step b23 with self frequency; If have, judge again to receive the professional also right and wrong MBMS business of MBMS, if receive the MBMS business, then UE switches to the MBMS carrier wave with self frequency, execution in step b23, otherwise, process ends.

35, method according to claim 34 is characterized in that, described other business that judged whether is specially: UE determines whether to exist other non-MBMS business by paging; And/or determine whether to exist other MBMS business by the MBMS control information.

36, method according to claim 17 is characterized in that, indication discharges the respective wireless carrying to UE according to network side among the step b24, or decides the carrying of release respective wireless in its sole discretion.

37, method according to claim 17 is characterized in that, further comprises after the step b24: indication switches on the specified frequency UE according to network side, and perhaps UE selects to switch on the selected frequency according to self.

According to claim 30 or 37 described methods, it is characterized in that 38, the frequency that described UE will switch to is the original frequency of UE self, or adopt and satisfy the definite frequency of algorithm that UE is evenly spread to each frequency.