CN101494821A - Method for receiving multicast and broadcast service program - Google Patents
Method for receiving multicast and broadcast service program Download PDFInfo
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- CN101494821A CN101494821A CNA2008100070066A CN200810007006A CN101494821A CN 101494821 A CN101494821 A CN 101494821A CN A2008100070066 A CNA2008100070066 A CN A2008100070066A CN 200810007006 A CN200810007006 A CN 200810007006A CN 101494821 A CN101494821 A CN 101494821A
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Abstract
The invention discloses a MBS program receiving method, which comprises: when a terminal receiving multi-broadcast service (MBS) program wants to shift from the served MBS field to a target MBS field, the terminal acquires the MBS parameter related information of the target MBS field about the bearing terminal acceptable MBS program and other MBS program from the served MBS field; when the terminal shifts from the served MBS field into the target MBS field, the terminal receives the acceptable MBS program and other MBS program by the MBS parameter of the target MBS field about the bearing terminal acceptable MBS program and other MBS program.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of method of receiving multicast and broadcast service program.
Background technology
At (the Service Provider Work Group of demand working group, be called for short SPWG) the middle definition to multicast broadcast service (Multicast and Broadcast Service, be called for short MCBCS, its definition be type of service, promptly this business can be received by a plurality of users, this business is aloft during interface bearing, can adopt man-to-man mode of unicast to realize allowing a plurality of users receive respectively with a plurality of reception users, also can adopt the multicast and broadcast mode of one-to-many to realize allowing a plurality of users receive, can save the on-air radio resource when adopting a kind of mode in back with a plurality of reception users) demand.
In the IEEE802.16e-2005 standard, support two kinds of multicast and broadcasts (Multicastand Broadcast Service is called for short MBS, its definition be the air interface bearing mode, the same Radio Resource of employing that refers to aloft sends, and can be received by a plurality of users.The MBS business is divided into single base station MBS and multi-base station MBS, and single base station MBS has only a base station to carry out the multicast and broadcast transmission exactly, and multi-base station MBS is exactly that the multicast and broadcast transmission is carried out in a plurality of base stations) business.A kind of is the MBS business that single base station (Base Station is called for short BS) is inserted, and a kind of is the MBS business that many BS insert.
To the MBS business that many BS insert, there is a MBS zone (they transmit identical multicast broadcast service for MBS Zone, the set of one group of base station, and these base stations have identical multicast connection identifier and security association).In same MBS Zone, all base stations are to professional identical multicast connection identifier (CID (MCID), logic connection identifier (CID (LCID) and the security association (Security Association is called for short SA) of adopting of same MBS.Because the restriction of radio-frequency propagation and interference, MBS Zone scope is limited.The transmission district of a MCBCS program of SPWG definition is MCBCS transmission region (TransmissionZone), and MCBCS Transmission Zone may comprise a plurality of MBS Zone so.
When terminal (Mobile Station, be called for short MS) in MBS Zone under certain base station registration with set up that MBS is professional and be connected after, MS can receive the MBS business by the MCID (if support LCID then also should comprise LCID) that serving BS passes over; Owing to all adopt same MCID (LCID) to transmit same MBS business in all base stations of MBS Zone, therefore when in MBS Zone when mobile, do not need to do MCID (LCID) renewal process, not only can receive the MBS business continuously, and can continue to receive the MBS business according to multicast and broadcast data message unit (MBS DATA IE), expansion multicast broadcast data information unit (Extended MBS DATA IE), multicast and broadcast data time diversity information unit (MBS DATA Time Diversity IE) cascade information from any one base station.When MS switched to adjacent MBS Zone as shown in Figure 1, if adjacent MBSZone belongs to another MCBCS Transmission Zone, MS can not receive original program so; If but adjacent MBS Zone belongs to same MCBCSTransmission Zone, then MS need obtain new MCID/LCID from new MBS Zone, receives same MBS program from new MCID/LCID then.IEEE802.16 or NWG agreement be not to carrying out standard to crossing over the switching of MBS Zone district at present.
Summary of the invention
The invention provides a kind of method of receiving multicast and broadcast service program, when switching, receive identical MBS program fast, without interruption in terminal cross MBS Zone zone.
Method according to a kind of receiving multicast and broadcast service program of the embodiment of the invention comprises: when terminal desire that can receiving multicast and broadcast service program when the service multicast broadcast service zone switches to target group multicast broadcasting service zone, terminal is obtained the relevant information that target group multicast broadcasting service zone is used to carry the multicast broadcast service parameter of multicast and broadcast service program that terminal can receive or other multicast and broadcast service programs from the service multicast broadcast service zone; When terminal switches to target group multicast broadcasting service when zone from the service multicast broadcast service zone, terminal is used to carry multicast and broadcast service program or other multicast and broadcast service programs that the multicast broadcast service parameter receiving terminal of multicast and broadcast service program that terminal can receive or other multicast and broadcast service programs can receive by target group multicast broadcasting service zone.
Wherein, if service multicast broadcast service zone and target group multicast broadcasting service zone belong to same multicast broadcast service transmission region, then terminal switches to target group multicast broadcasting service when zone from the service multicast broadcast service zone, and the multicast broadcast service parameter that is used to carry the multicast and broadcast service program that terminal can receive by the target group multicast broadcasting service zone that obtains from the service multicast broadcast service zone continues the multicast and broadcast service program that receiving terminal can receive.
Wherein, target group multicast broadcasting service zone comprises at least a of following parameter with the multicast broadcast service parameter that service multicast broadcast service zone is used for the bear multicast broadcast service program: the identification information of the multicast broadcast service transmission region under the multicast and broadcast service program, the identification information in affiliated multicast broadcast service zone, the multicast broadcast service mark of multicast and broadcast service program, the multicast connection identifier (CID of bear multicast broadcast service program and/or logic connection identifier (CID, security association information, the multicast service traffic identifier, the positional information of next multicast broadcast service mapping message.
Wherein, the positional information of next multicast broadcast service mapping message comprises at least a in the following information: frame position information, symbol offset information, number of symbols information, subchannel offset information, subchannel number information.Especially, the positional information of next multicast broadcast service mapping message comprises frame position information at least.
Wherein, the multicast broadcast service parameter that all base stations in the service multicast broadcast service zone are used to carry the same multicast broadcast service program is identical, and the multicast broadcast service parameter that all base stations in the target group multicast broadcasting service zone are used to carry the same multicast broadcast service program is identical.
Wherein, the entity in the service multicast broadcast service zone is preserved the relevant information that is used to identify the corresponding relation between the multicast broadcast service mark of multicast and broadcast service program and the multicast broadcast service parameter that the service multicast broadcast area is used for the bear multicast broadcast service program.Entity in the target group multicast broadcasting service zone is preserved the relevant information that multicast broadcast service mark and target group multicast broadcasting service zone are used for the corresponding relation between the multicast broadcast service parameter of bear multicast broadcast service program.
Wherein, terminal comprises from the process that the service multicast broadcast service zone obtains the relevant information of the multicast broadcast service parameter that target group multicast broadcasting service zone is used for carrying the multicast and broadcast service program that terminal can receive: the multicast broadcast service mark of the multicast and broadcast service program that the entity of service multicast broadcast service zone can receive terminal sends to the entity in the target group multicast broadcasting service zone; Entity in the target group multicast broadcasting service zone is used for the relevant information of the corresponding relation between the multicast broadcast service parameter of bear multicast broadcast service program according to multicast broadcast service mark and target group multicast broadcasting service zone, obtain the relevant information of the corresponding multicast broadcast service parameter of the multicast broadcast service mark of the multicast and broadcast service program that can receive, and send to the entity in the service multicast broadcast service zone with terminal; Entity in the service multicast broadcast service zone sends to terminal with the relevant information that target group multicast broadcasting service zone is used to carry the multicast broadcast service parameter of the multicast and broadcast service program that terminal can receive.
Alternatively, the multicast broadcast service controller in the multicast broadcast service transmission region stores the mapping relations between the multicast broadcast service parameter of the multicast broadcast service mark of each multicast broadcast program in each multicast broadcast service zone in the multicast broadcast service transmission region and bear multicast broadcast service program.
Wherein, terminal comprises from the process that the service multicast broadcast service zone obtains the relevant information of the multicast broadcast service parameter that target group multicast broadcasting service zone is used for carrying the multicast and broadcast service program that terminal can receive: the entity of service multicast broadcast service zone sends the multicast broadcast service mark of the multicast and broadcast service program that terminal can receive and the identification information of the target access base station in target group multicast broadcasting service zone and/or the target group multicast broadcasting service zone to the multicast broadcast service controller; Multicast broadcast service mark and the identification information of target access base station and/or the identification information in target group multicast broadcasting service zone of the multicast and broadcast service program that the multicast broadcast service controller can receive according to terminal, obtain the relevant information that target group multicast broadcasting service zone is used to carry the multicast broadcast service parameter of the multicast and broadcast service program that terminal can receive, and send to the entity in the service multicast broadcast service zone; Entity in the service multicast broadcast service zone sends to terminal with the relevant information that target multicast broadcast area is used to carry the multicast broadcast service parameter of the multicast and broadcast service program that terminal can receive.
Method according to the embodiment of the invention also comprises: the entity in target group multicast broadcasting service zone of the entity in the service multicast broadcast service zone sends the identification information of service multicast broadcast service zone or/and the identification information of multicast broadcast service transmission region under the service multicast broadcast service zone; Entity in the target group multicast broadcasting service zone according to the identification information of service multicast broadcast service zone or/and the identification information of multicast broadcast service transmission region under the service multicast broadcast service zone, judge the relation between target group multicast broadcasting service zone and the service multicast broadcast service zone, and judged result is sent to entity in the service multicast broadcast service zone.
Wherein, the pass between target group multicast broadcasting service zone and the service multicast broadcast service zone is: be different multicast broadcast service zone in same multicast broadcast service zone or the same multicast broadcast service transmission region or the different multicast broadcast service zone in the different multicast broadcast service transmission region.
Method according to the embodiment of the invention also comprises: when target group multicast broadcasting service zone or target access base station were not set up the multicast broadcast service that is used to carry the multicast and broadcast service program that terminal can receive, the current access base station of serving terminal triggers the target access base station or the multicast broadcast service that is used for the bear multicast broadcast service program is set up in target group multicast broadcasting service zone; The multicast broadcast service that is used for the bear multicast broadcast service program is set up in target access base station or target group multicast broadcasting service zone.
Wherein, target group multicast broadcasting service zone be used for carrying in the positional information of the multicast connection identifier (CID of multicast broadcast service parameter of the multicast and broadcast service program that terminal can receive and/or logic connection identifier (CID, security association information, next multicast broadcast service mapping message partly or entirely with the service multicast broadcast service zone in identical.
Wherein, when terminal switches to target group multicast broadcasting service when zone from the service multicast broadcast service zone, terminal reports that to the multicast router of service multicast broadcast service zone it leaves the situation of service multicast broadcast service zone, and reports the situation in its target approach multicast broadcast service zone to the multicast router in target group multicast broadcasting service zone.
Wherein, the multicast broadcast service mark is: multicast ip address or multicast and broadcast content identification or multicast broadcast service content channel sign or multicast and broadcast service program mark.
Wherein, multicast ip address or multicast and broadcast content identification or multicast broadcast service content channel sign or multicast and broadcast service program mark and multicast connection identifier (CID shine upon one by one.Under the situation of supporting the logic connection identifier (CID, multicast ip address or multicast and broadcast content identification or multicast broadcast service content channel sign or multicast and broadcast service program mark and logic connection identifier (CID shine upon one by one.Under the situation of supporting multicast connection identifier (CID and logic connection identifier (CID, multicast ip address or multicast and broadcast service program mark and multicast connection identifier (CID shine upon one by one, and multicast and broadcast content identification or multicast broadcast service content channel sign and logic connection identifier (CID shine upon one by one.
Wherein, the entity in the service multicast broadcast service zone is the current access base station or the current IAD of serving terminal.Target access base station or target access gateway that entity in the target group multicast broadcasting service zone inserts for the terminal desire.
Method according to the another kind of receiving multicast and broadcast service program of the embodiment of the invention comprises: the overlapping region that service multicast broadcast service zone and target group multicast broadcasting service zone are set; When just in the terminal of receiving multicast and broadcast service program when the service multicast broadcast service zone moves to the overlapping region, terminal is obtained multicast and broadcast service program or the multicast broadcast service parameter of other multicast broadcast program in target group multicast broadcasting service zone that terminal can receive in according to the multicast broadcast service parameter receiving multicast and broadcast service program in the service multicast broadcast service zone; And when terminal moved to target group multicast broadcasting service zone, terminal was used the multicast and broadcast service program or the multicast broadcast service parameter receiving multicast and broadcast service program of other multicast broadcast program in target group multicast broadcasting service zone that can receive.
Wherein, the terminal multicast and broadcast service program that can receive is meant that terminal does not need to carry out the multicast and broadcast service program that just can correctly receive alternately with network side.
By the present invention, when terminal is switched in leap MBS Zone zone, receive identical MBS program fast, without interruption.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of quick switching position between MBS Zone;
Fig. 2 is the schematic diagram according to quick switching flow between the MBS Zone of the embodiment of the invention;
Fig. 3 and Fig. 4 are the schematic flow sheets of handoff preparation phase when switching fast between the MBS Zone of the embodiment of the invention;
Fig. 5 and Fig. 6 are the schematic flow sheets of handover execution stage when switching fast between the MBS Zone of the embodiment of the invention; And
Fig. 7 adopts overlapping MBS Zone to support to switch fast between MBS Zone schematic diagram.
Embodiment
The Transmission Zone of a MBS business may comprise a plurality of MBS Zone; In same MBS Zone, all base stations are to identical MCID, LCID and the SA of the professional employing of same MBS, data carried by data receives the MBS business to MS on the MCID (or LCID, under the situation of supporting LCID, can comprise one or more LCID a MCID under) by receiving; MS does not relate to MCID/LCID when mobile in MBS Zone upgrades, and MS can continue to receive the MBS business; But when MS crosses over MBS Zone under the same MCBCS Transmission Zone, because adjacent MBS Zone can adopt the different same MBS business of MCID/LCID carrying; If MS just obtains new MCID/LCID after switching to target MBS Zone (Target MBS Zone, the MBS zone at the target access base station place of desiring to switch to), this can reduce the switch speed of MBS business.Switch speed when crossing over MBS Zone in order to accelerate MS, MS is before switching to Target MBS Zone, just from service MBS zone (Serving MBSZone, the MBS zone at current access base station place) obtains the MCID/LCID of Target MBS Zone, MS switches to Target MBS Zone so, just can directly receive the MBS business from new MCID/LCID.
Before switching to Target MBS Zone, just obtain the SA in target MBS zone simultaneously from service MBS zone.After MS switches to target MBS Zone, can directly use new SA.
Before switching to Target MBS Zone, just obtain the positional information of the next MBS MAP message in target MBS zone simultaneously from service MBS zone.This positional information comprise at least the next MBS MAP message in target MBS zone frame number or frame biasing; The positional information of MBS MAP message can comprise following field: the frame biasing of MBS MAP message place, subchannel offset/subchannel number, symbol offset/number of symbols field.After MS switches to target MBS zone like this, receive first MBS MAP message that switches to behind the target MBS zone according to the positional information that obtains, thereby continue to receive the MBS business at target MBS Zone.
Similar with the unicast service switching, the professional switching of MBS also can be divided into handoff preparation phase and handover execution stage.According to present agreement, MCID/LCID upgrades, SA upgrades and obtains target multicast broadcast area MBS MAP message positional information and carries out in handover execution stage.MS is in handover execution stage, after promptly switching to Target MBS Zone, not only can receive MBS MAP message at assigned address by positional information, the MCID/LCID that can also directly provide by Target MBS Zone continues to receive original MBS business, also can use new SA simultaneously.
There is multiple mode to can be implemented in handoff preparation phase, makes MS obtain MCID/LCID with the Target MBS Zone of the corresponding same MBS business of the MCID/LCID of ServingMBS Zone.If the MBS business is not supported dynamic foundation, with regard to the MBS business be at the very start under MCBCS Transmission Zone all MBS Zone set up, so then have following method can make MS obtain to switch to the MCID/LCID behind the Target MBS Zone.After switching Target MBS Zone so, MS just can directly adopt new MCID/LCID to continue to receive the MBS business.
Method 1
If all MBS Zone adopt the same same MBS business of MCID/LCID carrying under the MCBCS Transmission Zone, handoff preparation phase ServingMBS Zone continues to use original MCID/LCID by message informing MS at Target MBS Zone so.After MS switches to Target MBS Zone, still can adopt original MCID/LCID to continue to receive same MBS business.In addition, this method is suitable for obtaining the SA of target multicast broadcast area equally.
Method 2
If each MBS Zone can distribute the MCID/LCID of MBS business voluntarily under the MCBCD Transmission Zone, MCID/LCID that distributes under the Serving MBS Zone and the MCID/LCID that distributes under Target MBS Zone then can associate by the MBS service marker so.In handoff preparation phase, Serving MBS Zone mails in the message of Target MBS Zone with the mapping table of going up current MBS service marker or MCID/LCID and MBS service marker, there are the MCID/LCID in this MBS Zone and the mapping table of MBS service marker equally at Target MBS Zone, Target MBS Zone finds out the MCID/LCID of the MCID/LCID of Serving MBS Zone in Target MBS Zone correspondence according to the MBS service marker, take back the Zone to Serving MBS by message; Serving MBS Zone by message informing MS under Serving MBS Zone MCID/LCID at the new MCID/LCID of Target MBS Zone correspondence.After MS switches Target MBS Zone, can adopt new MCID/LCID to receive the MBS business.In addition, this method is suitable for obtaining the SA of target multicast broadcast area equally.
Method 3
Because when the MBS of each MBS Zone under setting up this MBS Zone is professional, capital and MCBCS Controller carry out interacting message, MCBCS Controller distributes the MBS service marker, and each MBS Zone distributes the MCID/LCID of MBS service marker correspondence in the own scope; Therefore MCBCS Controller knows under the MCBCS TransmissionZone mapping relations between the MCID/LCID and MBS service marker among all MBS Zone.So in handoff preparation phase, Serving MBS Zone can obtain the MCID/LCID of same MBS business in Target MBS Zone correspondence from MCBCS Controller by message, then Serving MBS Zone by message informing MS under ServingMBS Zone MCID/LCID at the new MCID/LCID of Target MBS Zone correspondence.After MS switches Target MBS Zone, just can adopt new MCID/LCID to receive the MBS business.In addition, this method is suitable for obtaining the SA of target multicast broadcast area equally.
The above method MBS business that all to be hypothesis MS receive at Serving MBS Zone is all under the situation that Target MBS Zone also exists, just all MBS business of MCBCSTransmission Zone are set up at all MBS Zone at the very start, rather than according to actual user's subscription or watch what situation was dynamically set up.
If considering the MBS business support dynamically sets up, be that MBS Zone different under the MCBCS TransmissionZone dynamically sets up according to current actual user's subscription or the situation of watching, so current MS just may not exist at Target MBS Zone in the part or all of MBS business that Serving MBS Zone can receive, and promptly also is not established.In this case, handoff preparation phase must trigger Target MBS Zone set up MS Serving MBS Zone can receive but in the still unfounded MBS business of Target MBS Zone, after foundation is finished, Target MBS Zone brings Serving MBS Zone corresponding MCID/LCID, then Serving MBS Zone by message informing MS under Serving MBS Zone MCID/LCID at the new MCID/LCID of Target MBSZone correspondence.After MS switches Target MBS Zone, just can adopt new MCID/LCID to receive the MBS business.
Supporting under the situation that the MBS service dynamic is set up when Target MBS Zone obtains the MCID/LCID of same MBS business, have dual mode to finish at handoff preparation phase ServingMBS Zone.
Mode 1
Finish by interacting message between Serving MBS Zone and the Target MBS Zone, set up new MBS business if relate to triggering Target MBS Zone, Target MBS Zone just took back the Zone to Serving MBS with the MCID/LCID of Serving MBS Zone at the new MCID/LCID of Target MBS Zone correspondence after then foundation was finished.Then Serving MBS Zone by message informing MS under Serving MBS Zone MCID/LCID at the new MCID/LCID of Target MBS Zone correspondence.After MS switches Target MBS Zone, just can adopt new MCID/LCID to receive the MBS business.
Mode 2
Finish by interacting message between Serving MBS Zone and the MCBCS Controller; Set up new MBS business if relate to triggering Target MBS Zone, then MCBCS Controller can trigger at Target MBS Zone and set up the MBS business, and MCBCS Controller can take back new MCID/LCID the MBSZone to Serving after foundation was finished.Then Serving MBS Zone by message informing MS under Serving MBSZone MCID/LCID at the new MCID/LCID of Target MBS Zone correspondence.After MS switches Target MBS Zone, just can adopt new MCID/LCID to receive the MBS business.
No matter whether the MBS business is dynamically set up, and the switching of crossing over MBS Zone all relates to the renewal of MCID/LCID; Realize the renewal of MCID/LCID, must depend on the mapping relations between MCID/LCID and the MBS service marker.
The mode of MBS service marker depends on MCBCS Controller allocation strategy strategy, no matter adopts what mode to distribute the MBS service marker, all needs to set up the mapping relations between MCID/LCID and the MBS service marker; This mapping relations can be set up and safeguard by each MBS Zone in MCBCSTransmission Zone, and same like this MBS business may be different at the MCID/LCID of different MBS Zone mappings; Also can whole M CBCS Transmission Zone unification set up and maintenance, each MBS Zone adopts same MCID/LCID to MBS service marker mapping relations like this.
MCID/LCID and MBS service marker can have multiple mapping mode, now are summarized as follows respectively:
If the MBS business adopts MCBCS Content Channel ID and MCBCS Program ID to come mark respectively, wherein MCBCS Program ID comprises one or more MCBCS Content Channel ID.Under the situation of not supporting LCID, MCID can shine upon with MCBCS Content Channel ID, and MCID also can shine upon with MCBCSProgram ID; Under the situation of supporting LCID, LCID can shine upon with MCBCSContent Channel ID, and MCID then shines upon with MCBCS Program ID.
If MBS is the professional Multicast IP Address that adopts, promptly multicast ip address is come mark, and in this case, MCID and LCID can shine upon with multicast ip address.
If whole M CBCS Transmission Zone safeguards that same MCID/LCID is to MBS service marker mapping table, handoff preparation phase does not relate to the MCID/LCID renewal between MBS Zone, the message that Serving MBS Zone sends to MS shows that switching does not relate to MCID/LCID and upgrades, and MS still adopts same MCID/LCID to receive the MBS business after switching to Target MBS Zone so;
If the MCID/LCID that different MBS Zone safeguards under the whole M CBCS Transmission Zone is incomplete same to MBS service marker mapping table, handoff preparation phase relates to the MCID/LCID renewal between MBS Zone, Serving MBS Zone will carry the current MBS service marker that can receive of MS at least in initiating a message, then should comprise the MBS service marker and at the MCID/LCID of TargetMBS Zone correspondence in the response message that ServingMBS Zone receives.Serving MBS Zone send in the message of MS then will with go up MCID/LCID under the Serving MBS Zone and under TargetMBS Zone corresponding MCID/LCID, MS adopts new MCID/LCID reception MBS business after switching to Target MBS Zone like this.
If the MCID/LCID that different MBS Zone safeguards under the whole M CBCS Transmission Zone is incomplete same to MBS service marker mapping table, handoff preparation phase relates to the MCID/LCID renewal between MBS Zone, Serving MBS Zone also can carry current MBS service marker that can receive of MS and the mapping table of MCID/LCID in initiating a message, both can comprise the MBS service marker and at the MCID/LCID of Target MBS Zone correspondence in the response message that Serving MBS Zone receives; Also can comprise MCID/LCID and the mapping relations between MCID/LCID corresponding under the Target MBS Zone thereof under the Serving MBS Zone.ServingMBS Zone sends to then will be with going up MCID/LCID and the mapping relations between MCID/LCID corresponding under the Target MBS Zone thereof under the Serving MBS Zone in the message of MS, and MS adopts new MCID/LCID reception MBS business after switching to Target MBS Zone like this.
Can judge by the following method in handoff preparation phase whether MS switches to the adjacent MBS Zone of same MCBCS Transmission Zone; Serving BS (being arranged in Serving MBS Zone) is issued target BS (being positioned at Target MBS Zone) message and is received the affiliated MCBCS Transmission Zone ID of MBS business with going up current MS, after receiving, target BS judges whether oneself also belongs to same MCBCS TransmissionZone, if not, then in response message, be with MCID/LCID to upgrade failure and indicate and be with failure reason value;
Can whether switch to the adjacent MBS Zone of same MCBCSTransmission Zone by MS in handoff preparation phase; Serving BS (being arranged in Serving MBSZone) is issued target BS (being positioned at Target MBS Zone) message and is received MBS business affiliated MCBCS Transmission Zone ID and MBS ZoneID with going up current MS, target BS receives that the back judgement oneself also belongs to same MCBCS TransmissionZone ID and same MBS Zone ID, just mean that MS still moves at original MBSZone, MS continues to adopt original MCID/LCID to receive the MBS business; If target BS receives that but the back judgement oneself belongs to same MCBCS Transmission ZoneID different MBS Zone ID, just mean that MS is about to take place the switching between MBS Zone, target BS brings MS new MCID/LCID by serving BS, and MS adopts new MCID/LCID to receive the MBS business after switching to target BS;
Because each MBS Zone has independently multicast router Multicast Router.MS also needs to leave original multicast router, original multicast router update group member relation to the multicast router transmission IGMP leave notice of Sering MBS Zone when leaving Serving MBS Zone.After MS switched to Target MBS Zone, MS sent the IGMPJoin notice and joins new multicast router, the multicast router update group member relation of Target MBS Zone.
Below just relate to when striding MBS Zone switching and carry out the MCID/LCID renewal, relate to the professional SA renewal of MBS, so also can carry out the renewal of SA in handoff preparation phase if MS strides MBS Zone switching in handoff preparation phase.
For further improving the efficient that MBS Zone switches, in handoff preparation phase, TargetBS can bring the ServingBS among the Serving MBS Zone positional information that MS among the Target MBS Zone need receive the professional corresponding next MBS MAP message of MBS, and Serving BS is location information notification MS; After MS switched to Target MBSZone like this, Target MBS Zone became new Serving MBS Zone, and MS just can receive MBS MAP message by assigned address in new Serving MBS Zone, thereby receives the MBS business.
The positional information of MBS MAP message comprises frame number (frame just is offset), subchannel offset/subchannel number, symbol offset/number of symbols field.The MBS MAP message positional information that Target BS sends to ServingBS should comprise frame number (or vertical shift) at least.
MS switches to Target MBS Zone, Target MBS Zone becomes new Serving MBS Zone, the Target BS of same Target MBS Zone also becomes new Serving BS, MS can resolve DL MAP in the new Serving BS descending sub frame, obtain switching first MBS MAP IE in the past, also just obtain message, thereby beginning is at the professional receiving course of the MBS of Target MBS Zone at article one MBS MAP of Target MBS Zone.After so just avoiding MS to reenter Target MBS Zone, obtain the switching delay that multicast service parameters such as the MCID/LCID of current reception MBS business and SA are brought again.
If in handoff preparation phase, MS has not only obtained at the MCID/LCID of Target MBS and SA, also obtained simultaneously the positional information of MBS MAP message, MS switches to target MBS Zone and can receive MBS MAP message in appointed positions so, thereby begins to receive the MBS business.Avoid receiving each descending sub frame up to obtaining first MBS MAP IE, just obtain switching past first MBS MAP message afterwards.Can support the terminal power saving to a certain extent like this.
Fig. 2 is the schematic flow sheet according to quick switching flow between the MBS Zone of the embodiment of the invention.As shown in Figure 2, this flow process comprises:
S202 in handoff preparation phase, by the interacting message of MS and Serving MBS Zone and Serving MBS Zone and Target MBS Zone, finishes MCID/LCID and upgrades.
S204, in handover execution stage, MS adopts MCID/LCID to continue to receive the MBS business on the target BS of Target MBS Zone.
Fig. 3 is the schematic flow sheet of the handoff preparation phase when switching fast between the MBS Zone of the embodiment of the invention.The switching message and the flow process of flow process among Fig. 3 and clean culture handoff preparation phase are similar, difference is exactly handoff request (the Handoff Request in Fig. 3, abbreviation HO REQ), handoff response (Handoff Response, abbreviation HO RSP), base station handoff response (Mobile Base Station Handoff Response is called for short MOBBSHO RSP) will be switched relevant field with going up multicast service.As shown in Figure 3, this process comprises:
S302, MS send the Serving BS of MOB MSHO REQ message to Serving MBS Zone, comprise the target BS that may switch in the message.
S304, Serving BS (is positioned at Serving MBS Zone, here be exactly MBS ZoneA) send HO REQ message to handover-target base station (being positioned at Target MBS Zone, is exactly MBS Zone B) here, comprise in the message and set up the relevant information that multicast connects.
S306 sets up the MBS business if trigger Target MBS Zone, and flow process is seen Fig. 4, gives Serving BS otherwise Target BS returns HO RSP message, comprises source base station multicast relevant parameter in the message in the target BS corresponding parameters.
S308, Serving BS send MOB BSHO RSP message to MS, comprise current multicast service relevant parameter in the message in the target BS corresponding parameters.
S310, Serving BS send HO Ack message to MBS Zone B.
Fig. 4 is after the target Target MBS Zone among Fig. 3 receives HO REQ message, according to the multicast service flow message of having set up among the HO REQ, judges the schematic flow sheet that needs to set up part or all of group business stream among the target Target MBSZone.As shown in Figure 4, this flow process comprises:
S402, Target MBS Zone receives HO REQ, discovery need be set up part or all of group business stream among the HO REQ.
S404, set up whole group business streams if trigger, then (each MBS Zone has a MBS Anchor DP to the MBS grappling data channel of the target BS among the Target MBS Zone in this Target MBS Zone, reception is distributed to each base station in the MBS Zone then from the data that multicast router comes) transmission data channel registration message; There has been partial service stream to set up at present if Target MBS Zone judges, just needed to set up newly-increased partial service stream, then sent data channel and revise message.No matter be that data channel registration message or data channel are revised message, all needing in the message to carry need be in the corresponding source group business stream relevant information of target side foundation.
S406, MBS Anchor DP receives need be behind the source multicast service stream information that target side is set up, need to distribute the target side MSF ID corresponding with source MSF ID, with the corresponding target side MCID of source MCID, with the corresponding target side LCID of source LCID, the target side SA parameter corresponding with source SA parameter.Target MBS Zone sends MCBCS to MCBCS Controller and sets up request (Setup Req) message simultaneously, and multicast packet carrying between them is set up in request.
Switching access authentication between S408～S412MBS Zone is optionally, even need authentication, also authentication policy can be downloaded to Target MBS Zone and carry out, and not necessarily needs with AAA mutual.
S414, MBS Anchor DP is to target BS (handoff functionality module (HO Fn)/datapath function module (DP Fn), each base station in the MBS zone all has this two modules) return data channel registration reply message or data channel modification response message, be included as MS in the response message and switch to the parameters such as multicast service flow identifier (MSF ID), MCID, LCID and SA of distributing behind the Target MBS Zone.
S416, the Target base station sends HO RSP message and brings Serving the base station MBS Zone sign parameters such as (ID) of MSF ID, MCID, LCID, SA and the Target MBS Zone of Target MBS Zone distribution.
Attention in above-mentioned steps S404, Anchor MBS DP may trigger and all base stations in this MBS Zone between set up data channel or revise data channel.
Fig. 5 is the handover execution stage schematic flow sheet according to the embodiment of the invention.As shown in Figure 5, this flow process comprises:
S502a～S502b, MS sends to the Serving base station and switches indication (MobileHandoff Indication, be called for short MOB HO IND) message, comprise the target BS that MS chooses in the message, the multicast router of MS in Serving MBS Zone sends multicast and leaves (Internet GroupManagement Protocol Leave simultaneously, be called for short IGMPLeave) message, show that MS will leave current multicast router, current multicast router update group member relation.
S504, the Serving base station sends switching authentic (HandoffConfirm is called for short HO Cnf) message to the Target BS that chooses.
S506, Target BS return to switch and confirm (Handoff Acknowledge is called for short HOAck) response message.
S508, MS target approach base station, Target MBS Zone becomes new ServingMBS Zone.
S510, MS sends multicast adding (Internet GroupManagement Protocol Leave is called for short IGMP Join) message to the multicast router of Target MBS Zone, adds new multicast router, multicast router update group member relation.MS begins from new Serving MBS Zone receiving multicast business.
Fig. 6 is based upon TargetMBS Zone to set up MBS professional but do not choose any one Target base station among this Target MBS Zone according to triggering in handoff preparation phase of the embodiment of the invention, and this Target MBS Zone initiates to discharge schematic flow sheet after receiving the HO Cnf that Serving BS sends.As shown in Figure 6, this flow process comprises:
S602, target BS receive HO Cnf, this message indicating target base station handover cancelling.
S604, target BS send data channel and go registration or data channel modification message release handoff preparation phase to set up the MBS Business Stream.
S606, Target MBS Zone receive that sending MCBCS to MCBCS controller (Controller) discharges the group business stream that request (Release Req) message is used to discharge handoff preparation phase foundation.
S608, MCBCS Controller echo and answer message MCBCS to discharge response (ReleaseRsp) to Target MBS Zone.
S610, MBS Anchor DP return data channel and go registration response or data channel to revise response message to target BS.
S612, target BS return HO Ack message and give serving BS.
In the step S604 of Fig. 6, Anchor MBS DP may trigger with the deleted data passage of all base stations in the MBSZone or revise data channel.
Whether in the step S606 of Fig. 6, needing has other MS triggering to set up the Business Stream of these releases during Target MBS Zone judges this, if having, then Target MBS Zone refusal discharges these business, and can be with Reason For Denial to show this situation.
In this situation shown in Figure 6, Business Stream discharges also can have multicast router to trigger fully, and whether multicast router cyclic polling group business stream has MS receiving, and to the group business stream that does not have MS to receive, triggers release by multicast router.
Fig. 7 adopts overlapping MBS Zone to support to switch fast between MBS Zone schematic diagram.As shown in Figure 7, MS begins to receive the MBS business 1 time at the base station BS of MBS Zone A; During to mobile overlay region, MS still receives the MBS business according to original multicast service parameter under BS2, but while MS also obtains same MBS business multicast service parameter under MBS Zone B; When MS moves to BS3 under the MBS Zone B, just can utilize the multicast service parameter that has obtained in the overlay region to continue to receive the MBS business, thereby realize seamless switching like this.Wherein, the multicast service parameter comprise in the following parameter partly or entirely: the MCBCS Transmission Zone ID under the current MBS business, the MBS Zone ID under the current MBS business, current MBS service marker, the professional corresponding SA of the MCID/LCID of current MBS service marker correspondence, current MBS and the professional corresponding MSF ID of current MBS.
By the present invention, can guarantee when the user passes through MBS Zone, can receive the MBS program continuously.In addition, the present invention has avoided adopting overlapping MBS Zone to bring the complexity of MBS Zone planning and the complexity of RRM.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (25)
1. the method for a receiving multicast and broadcast service program is characterized in that, comprising:
When just in the terminal desire of receiving multicast and broadcast service program when the service multicast broadcast service zone switches to target group multicast broadcasting service zone, described terminal is obtained the relevant information that described target group multicast broadcasting service zone is used to carry the multicast broadcast service parameter of multicast and broadcast service program that described terminal can receive or other multicast and broadcast service programs from described service multicast broadcast service zone;
When described terminal when described service multicast broadcast service zone switches to described target group multicast broadcasting service zone, described terminal is used to carry multicast and broadcast service program that described terminal can receive by described target group multicast broadcasting service zone or the multicast broadcast service parameter of other multicast and broadcast service programs receives multicast and broadcast service program or other multicast and broadcast service programs that described terminal can receive.
2. method according to claim 1, it is characterized in that, if described service multicast broadcast service zone and described target group multicast broadcasting service zone belong to same multicast broadcast service transmission region, when then described terminal switched to described target group multicast broadcasting service zone from described service multicast broadcast service zone, the multicast broadcast service parameter that is used to carry the multicast and broadcast service program that described terminal can receive by the described target group multicast broadcasting service zone that obtains from described service multicast broadcast service zone continued to receive the multicast and broadcast service program that described terminal can receive.
3. method according to claim 2, it is characterized in that the multicast broadcast service parameter that described target group multicast broadcasting service zone and described service multicast broadcast service zone are used for the bear multicast broadcast service program comprises at least a of following parameter: the identification information of the multicast broadcast service transmission region under the multicast and broadcast service program, the identification information in affiliated multicast broadcast service zone, the multicast broadcast service mark of multicast and broadcast service program, the multicast connection identifier (CID of bear multicast broadcast service program and/or logic connection identifier (CID, security association information, the multicast service traffic identifier, the positional information of next multicast broadcast service mapping message.
4. method according to claim 3 is characterized in that the positional information of described next multicast broadcast service mapping message comprises frame position information at least.
5. method according to claim 3, it is characterized in that the positional information of described next multicast broadcast service mapping message comprises at least a in the following information: frame position information, symbol offset information, number of symbols information, subchannel offset information, subchannel number information.
6. method according to claim 4, it is characterized in that, the multicast broadcast service parameter that all base stations in the described service multicast broadcast service zone are used to carry the same multicast broadcast service program is identical, and the multicast broadcast service parameter that all base stations in the described target group multicast broadcasting service zone are used to carry the same multicast broadcast service program is identical.
7. method according to claim 6, it is characterized in that the entity in the described service multicast broadcast service zone is preserved the relevant information that is used to identify the corresponding relation between the multicast broadcast service mark of multicast and broadcast service program and the multicast broadcast service parameter that described service multicast broadcast area is used for the bear multicast broadcast service program.
8. method according to claim 7, it is characterized in that the entity in the described target group multicast broadcasting service zone is preserved the relevant information that described multicast broadcast service mark and described target group multicast broadcasting service zone are used for the corresponding relation between the multicast broadcast service parameter of bear multicast broadcast service program.
9. method according to claim 8, it is characterized in that described terminal comprises from the process that described service multicast broadcast service zone obtains the relevant information of the multicast broadcast service parameter that described target group multicast broadcasting service zone is used to carry the multicast and broadcast service program that described terminal can receive:
The multicast broadcast service mark of the multicast and broadcast service program that the entity in the described service multicast broadcast service zone can receive described terminal sends to the entity in the described target group multicast broadcasting service zone;
The multicast broadcast service that entity in the described target group multicast broadcasting service zone obtains the multicast and broadcast service program that described terminal can receive is marked at the relevant information of the corresponding multicast broadcast service parameter in target group multicast broadcasting service zone, and sends to the entity in the described service multicast broadcast service zone;
Entity in the described service multicast broadcast service zone sends to described terminal with the relevant information that described target group multicast broadcasting service zone is used to carry the multicast broadcast service parameter of the multicast and broadcast service program that described terminal can receive.
10. method according to claim 6, it is characterized in that the multicast broadcast service controller in the described multicast broadcast service transmission region stores the mapping relations between the multicast broadcast service parameter of the multicast broadcast service mark of each multicast broadcast program in each multicast broadcast service zone in the described multicast broadcast service transmission region and bear multicast broadcast service program.
11. method according to claim 10, it is characterized in that described terminal comprises from the process that described service multicast broadcast service zone obtains the relevant information of the multicast broadcast service parameter that described target group multicast broadcasting service zone is used to carry the multicast and broadcast service program that described terminal can receive:
Entity in the described service multicast broadcast service zone sends the multicast broadcast service mark of the multicast and broadcast service program that described terminal can receive and the identification information of the target access base station in described target group multicast broadcasting service zone and/or the described target group multicast broadcasting service zone to described multicast broadcast service controller;
Multicast broadcast service mark and the identification information of described target access base station and/or the identification information in described target group multicast broadcasting service zone of the multicast and broadcast service program that described multicast broadcast service controller can receive according to described terminal, obtain the relevant information that described target group multicast broadcasting service zone is used to carry the multicast broadcast service parameter of the multicast and broadcast service program that described terminal can receive, and send to the entity in the described service multicast broadcast service zone;
Entity in the described service multicast broadcast service zone sends to described terminal with the relevant information that described target multicast broadcast area is used to carry the multicast broadcast service parameter of the multicast and broadcast service program that described terminal can receive.
12. according to each described method in the claim 1 to 11, it is characterized in that, also comprise:
Entity in described service multicast broadcast service zone entity in described target group multicast broadcasting service zone sends the identification information of described service multicast broadcast service zone or/and the identification information of multicast broadcast service transmission region under the described service multicast broadcast service zone;
Entity in the described target group multicast broadcasting service zone according to the identification information of described service multicast broadcast service zone or/and the identification information of multicast broadcast service transmission region under the described service multicast broadcast service zone, judge the relation between described target group multicast broadcasting service zone and the described service multicast broadcast service zone, and judged result is sent to entity in the described service multicast broadcast service zone.
13. method according to claim 12, it is characterized in that the pass between described target group multicast broadcasting service zone and the described service multicast broadcast service zone is: be different multicast broadcast service zone in same multicast broadcast service zone or the same multicast broadcast service transmission region or the different multicast broadcast service zone in the different multicast broadcast service transmission region.
14. method according to claim 13 is characterized in that, also comprises:
When described target group multicast broadcasting service zone or described target access base station were not set up the multicast broadcast service that is used to carry the multicast and broadcast service program that described terminal can receive, the current access base station of serving described terminal triggers described target access base station or the multicast broadcast service that is used to carry described multicast and broadcast service program is set up in described target group multicast broadcasting service zone;
The multicast broadcast service that is used to carry described multicast and broadcast service program is set up in described target access base station or described target group multicast broadcasting service zone.
15. method according to claim 14, it is characterized in that, described target group multicast broadcasting service zone be used for carrying in the positional information of the multicast connection identifier (CID of multicast broadcast service parameter of the multicast and broadcast service program that described terminal can receive and/or logic connection identifier (CID, security association information, next multicast broadcast service mapping message partly or entirely with described service multicast broadcast service zone in identical.
16. method according to claim 15, it is characterized in that, when described terminal when described service multicast broadcast service zone switches to described target group multicast broadcasting service zone, described terminal reports that to the multicast router of described service multicast broadcast service zone it leaves the situation of described service multicast broadcast service zone, and reports that to the multicast router in described target group multicast broadcasting service zone it enters the situation in described target group multicast broadcasting service zone.
17. method according to claim 16 is characterized in that, described multicast broadcast service mark is: multicast ip address or multicast and broadcast content identification or multicast broadcast service content channel sign or multicast and broadcast service program mark.
18. method according to claim 16, it is characterized in that described multicast ip address or described multicast and broadcast content identification or described multicast broadcast service content channel sign or described multicast and broadcast service program mark and described multicast connection identifier (CID shine upon one by one.
19. method according to claim 16, it is characterized in that, under the situation of supporting described logic connection identifier (CID, described multicast ip address or described multicast and broadcast content identification or described multicast broadcast service content channel sign or described multicast and broadcast service program mark and described logic connection identifier (CID shine upon one by one.
20. method according to claim 16, it is characterized in that, under the situation of supporting described multicast connection identifier (CID and described logic connection identifier (CID, described multicast ip address or described multicast and broadcast service program mark and described multicast connection identifier (CID shine upon one by one, and described multicast and broadcast content identification or described multicast broadcast service content channel sign and described logic connection identifier (CID shine upon one by one.
21. method according to claim 16 is characterized in that, the entity in the described service multicast broadcast service zone is the current access base station or the current IAD of serving described terminal.
22. method according to claim 21 is characterized in that, the entity in the described target group multicast broadcasting service zone is target access base station or the target access gateway that described terminal desire inserts.
23. method according to claim 22 is characterized in that, the multicast and broadcast service program that described terminal can receive is meant that described terminal does not need to carry out the mutual multicast and broadcast service program that just can correctly receive with network side.
24. the method for a receiving multicast and broadcast service program is characterized in that, comprising:
The overlapping region in service multicast broadcast service zone and target group multicast broadcasting service zone is set;
When just in the terminal of receiving multicast and broadcast service program when described service multicast broadcast service zone moves to described overlapping region, described terminal is obtained the multicast and broadcast service program that described terminal can receive or the multicast broadcast service parameter in described target group multicast broadcasting service zone of other multicast and broadcast service programs when receiving described multicast and broadcast service program according to the multicast broadcast service parameter in the described service multicast broadcast service zone; And
When described terminal moves to described target group multicast broadcasting service zone, broadcast multicast program or other multicast and broadcast service program that described terminal uses described multicast and broadcast service program that can receive or the multicast broadcast service parameter receiving terminal of other multicast and broadcast service programs in described target group multicast broadcasting service zone can receive.
25. method according to claim 24 is characterized in that, the multicast and broadcast service program that described terminal can receive is meant that terminal does not need to carry out the mutual multicast and broadcast service program that just can correctly receive with network side.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685682A (en) * | 2011-03-17 | 2012-09-19 | 中兴通讯股份有限公司 | Method and system for determining target community switched by user equipment |
| CN113950005A (en) * | 2020-07-17 | 2022-01-18 | 维沃移动通信有限公司 | Service receiving method, terminal and network side equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060293641A1 (en) * | 2003-05-14 | 2006-12-28 | Fuyuhiko Nishijima | Housing body for deglutition of solid molding for oral ingestion, container for the housing body, and deglutition method |
| CN100403814C (en) * | 2004-11-25 | 2008-07-16 | 华为技术有限公司 | Packet broadcasting service key controlling method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685682A (en) * | 2011-03-17 | 2012-09-19 | 中兴通讯股份有限公司 | Method and system for determining target community switched by user equipment |
| WO2012122816A1 (en) * | 2011-03-17 | 2012-09-20 | 中兴通讯股份有限公司 | Method and system for determining switchover target cell for user equipment |
| CN113950005A (en) * | 2020-07-17 | 2022-01-18 | 维沃移动通信有限公司 | Service receiving method, terminal and network side equipment |
| CN113950005B (en) * | 2020-07-17 | 2023-10-13 | 维沃移动通信有限公司 | Service receiving method, terminal and network side equipment |
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