CN1819693B - Method for notifying MBMS service by Iu interface - Google Patents
Method for notifying MBMS service by Iu interface Download PDFInfo
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- CN1819693B CN1819693B CN 200510008014 CN200510008014A CN1819693B CN 1819693 B CN1819693 B CN 1819693B CN 200510008014 CN200510008014 CN 200510008014 CN 200510008014 A CN200510008014 A CN 200510008014A CN 1819693 B CN1819693 B CN 1819693B
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Abstract
A informing multimedia broadcast and multicast operation method in Iu interface, including the following steps: SGSN decide to send the information of ''MBMS conversation start'' to RNC; SGSN organize the information of ''MBMS conversation start'', SGSN if RA filter, the UE that join the MBMS operations are free mode in all the RA, the number of the ''RA list of free mode UE'' that set in the information of SGSN is a special value; RNC receive the information of ''MBMS conversation start'', if the number of the ''RA list of free mode UE'' in the information is the conventional special value, RNC know UE that join the MBMS operations are free mode in all the RA. The invention causes RNC to have the correct processing flow, and predigest RNC processing, reduced the load of the Lu interface.
Description
Technical field
The present invention relates to mobile communication, particularly notify the method for multimedia broadcasting and multicast service (hereinafter to be referred as MBMS) in Wideband Code Division Multiple Access (WCDMA) (hereinafter to be referred as the WCDMA) mobile communication system at Iu interface (interface between core net and the radio network controller (hereinafter to be referred as RNC)).
Background technology
Multimedia broadcasting and multicast service (hereinafter to be referred as MBMS) are that a standardized new business is being carried out in third generation partner plan (hereinafter to be referred as 3GPP).The MBMS business is a kind of business of unidirectional point-to-multipoint, and the maximum characteristics of this business are that it can effectively utilize Radio Resource and Internet resources.
Fig. 1 has described the system configuration of MBMS, and the MBMS network configuration is based on GPRS (be called for short GPRS) core net, and has increased new network element.Be description below to Fig. 1 MBMS system configuration.
101 broadcasting and multicast service center (being called for short BM-SC) are the professional control centres of MBMS system.102 Gateway GPRS Support Nodes (be called for short GGSN) and 103 Serving GPRS Support Nodes (abbreviation SGSN) have constituted the transmission network of MBMS business, for the transmission of data provides route.104UMTS land radio access web (being called for short UTRAN) provides Radio Resource for MBMS serves on the interface aloft.105 subscriber equipmenies (being called for short UE) are the terminal equipments that is used for receiving data.106 attaching position registers (being called for short HLR) are preserved and subscriber-related data, and services such as subscription authentication can be provided.107Uu is a wave point, and 108Iu represents the interface between Access Network and the core net.The professional used Iu resource of MBMS is not user's special use, but professional thus all users share.
Existing MBMS session begins process as shown in Figure 2.
201 SGSN send " the MBMS session begins " message and give RNC, ask RNC notice UE MBMS session to begin, and set up connection of Iu signaling and the carrying of Iu user plane when needed.The service area that comprises corresponding MBMS business in this message.If SGSN supports Routing Area (hereinafter to be referred as RA) screening, also comprise " being in the RA tabulation of the interested UE of idle pulley " in this message.SGSN also can not support the RA screening, does not exist thereby " be in the RA tabulation of the interested UE of idle pulley " in " the MBMS session begins " message.
202RNC receives " the MBMS session begins " message.
When one of satisfied following at least two conditions, RNC begins the RAB resource of MBMS traffic assignments request for this reason:
1) RNC has controlled a sub-district that belongs to the MBMS service area at least, and the MBMS session has at least a RA who belongs to this RNC to be included in the tabulation when beginning to comprise in the message RA tabulation of idle pulley UE.
2) UE that has this RNC to serve, UE uses the Radio Resource of the sub-district that belongs to the MBMS service area.
If the MBMS session begins to comprise in the message RA tabulation of idle pulley UE, but when top two conditions do not satisfy, RNC not for this reason the MBMS business set up RAB, RA list update or UE up to idle pulley UE place connect.Just the MBMS business is set up RAB for this reason.In this case, RNC sends " MBMS conversational response " immediately and gives SGSN, and is former because " successful MBMS session begins, and Data-carrying does not need ".
If Non-Access Stratum (hereinafter to be referred as NAS) node selection function (hereinafter to be referred as NNSF) activates, RNC may receive next " MBMS session " message from a plurality of SGSN, if the RAB of request is set up in the RNC decision, RNC only sets up a MBMS Iu carrying, and sends " the MBMS session begins response " message to comprising " transport layer address " and " Iu transmission relation " in the SGSN. message of selecting.
If RNC receives next " MBMS session " message from a plurality of SGSN, comprise " the RA tabulation at idle pulley UE place " in each " the MBMS session begins " message.If RNC supports, RNC set up and safeguard with all SGSN between the Iu signaling is connected, and send " the MBMS session begins response " message to each SGSN, former in " successful MBMS session begins, and Data-carrying does not need ".If the RNC decision is set up RAB for one of them SGSN, then RNC sends the former of response message because successful RAB sets up to this RNC.
If NNSF activates, RNC receives next " MBMS session " message from a plurality of SGSN, and not every " the MBMS session begins " message all comprises " the RA tabulation at idle pulley UE place ".RNC sends " the MBMS session begins failure " message to each SGSN (confirming successfully to set up the SGSN of RAB except RNC uses " the MBMS session begins response "), and cause value is " MBMS-is substituted owing to NNSF ".
Existing MBMS session updates process as shown in Figure 3.
301 in the MBMS session is carried out, and SGSN sends " MBMS session updates " message and gives RNC, notifies RNC " the RA tabulation at idle pulley UE place " with preceding comparing of once sending variation to take place.Comprise " the RA tabulation at the idle pulley UE place of change " in the message.
302RNC receives " MBMS session updates " message.
If MBMS RAB sets up, if RNC is controlling at least one such sub-district: at the MBMS service area, and the RA at this place, sub-district is included in " the RA tabulation of increase " (if this information element is included in " the RA tabulation at the idle pulley UE place of change ").RNC begins for this reason, and MBMS RAB distributes other MBMS Radio Resource.If comprise in " the RA tabulation at the idle pulley UE place of change " " the RA tabulation that will delete ", RNC may be released in the MBMS Radio Resource of the cell allocation among these RA.
If also do not set up MBMS RAB, if RNC is controlling at least one such sub-district: at the MBMS service area, and the RA at this place, sub-district is included in " the RA tabulation of increase " (if this information element is included in " the RA tabulation at the idle pulley UE place of change ").RNC begins to set up MBMS RAB.If above-mentioned condition does not satisfy, RNC can wait until that the RA list update at next idle pulley UE place or UE connect, and just the MBMS business is set up RAB for this reason.
Successfully setting up at MBMS RAB is that RNC comprises " transport layer address " and " Iu transmission relation " in " response of MBMS session updates " message.
After the RA list update success at idle pulley UE place, RNC sends " response of MBMS session updates " message and passes through SGSN.
When RNC can not be correct the processing request time, for example the resource without any the sub-district can be established, RNC sends " failure of MBMS session updates " message and notifies SGSN.
From top prior art as can be seen, RNC is different to the operation that belongs to RA tabulation and the sub-district that does not belong to the RA tabulation.So, have only RNC can know accurately whether SGSN supports RA screening and the UE that idle pulley is arranged among which RA under the situation of SGSN support RA screening, RNC just can make correct processing.
(1) for such a case: when the MBMS session begins, the UE of idle pulley is arranged all among all RA that SGSN comprises, SGSN need comprise all RA in " the RA tabulation at idle pulley UE place ".Which sub-district RNC need to check in these RA after receiving this message, and in these sub-districts notifying MBMS service, counting is set up radio bearer operations such as (hereinafter to be referred as RB).All RA tabulations are included in the waste that causes in " the MBMS session begins " message the Iu interface resource.And RNC needs to check which sub-district belongs to these RA after receiving this message, cause the processing complexity of RNC, and processing speed is slow.There is same problem for " MBMS session updates " process.
(2) have SGSN to support RA screening and SGSN not to support RA screening both of these case at present, when SGSN did not support the RA screening, " RA at idle pulley UE place tabulates " do not exist in " the MBMS session begins " message.When SGSN supports the RA screening, but when all not having the UE of idle pulley among all RA, in the message " the RA tabulation at idle pulley UE place " do not exist yet, how distinguishing both of these case needs standard clearly to stipulate.
Summary of the invention
The purpose of this invention is to provide a kind of method, add the problem that new information element solves above-mentioned existence by the agreement that has some values of information element now is reached in existing message at Iu interface notifying MBMS service.
According to an aspect of of the present present invention, a kind of method at Iu interface notice multimedia broadcasting and multicast service comprises step:
The SGSN decision sends " the MBMS session begins " message and gives RNC, comprises information element " RA indication " in the described message;
RNC receives " the MBMS session begins " message;
If " RA indication " is corresponding value in " the MBMS session begins " message, RNC knows the UE of this MBMS business of adding that idle pulley is arranged among all RA, and RNC is the RAB resource of MBMS traffic assignments request for this reason.
According to another aspect of the present invention, a kind of method at Iu interface notice multimedia broadcasting and multicast service comprises step:
1) the SGSN decision sends " the MBMS session begins " message and gives RNC, comprises information element " RA indication " in the described message;
2) RNC receives " the MBMS session begins " message;
3) if " RA indication " is corresponding value in " the MBMS session begins " message, RNC knows the UE of this MBMS business of adding that does not have idle pulley among all RA.
The invention enables RNC that correct handling process can be arranged, and simplified the processing among the RNC, reduced the load of Iu interface.
Description of drawings
Fig. 1 is the logical network equipment drawing of MBMS business;
Fig. 2 is that the MBMS session of prior art begins process;
Fig. 3 is the MBMS session updates process of prior art;
Fig. 4 is the method for first kind of SGSN notice RNC RA state;
Fig. 5 is the method for second kind of SGSN notice RNC RA state;
Fig. 6 is the method for new Iu interface notifying MBMS service, the operating process of SGSN;
Fig. 7 is the method for new Iu interface notifying MBMS service, the operating process of RNC.
Embodiment
Provided among the present invention two kinds of methods make SGSN can notify RNC whether all RA all have idle pulley to all there not being the UE of idle pulley among the professional interested UE of MBMS and all RA.
Above-mentioned process describes with figure, also with flow chart the node course of work of (comprising SGSN, RNC) is described.
Fig. 4 for a kind of SGSN notice RNC whether all RA the method that does not all have this UE among the UE of adding MBMS business of idle pulley and all RA is all arranged. promptly by the agreement of " idle pulley UE place RA tabulation " value is finished this function. can know the correct information of idle pulley UE place RA by this process RNC, thereby make RNC that correct handling process be arranged, and simplify the processing of RNC.
401a SGSN sends " the MBMS session begins " message and gives RNC, asks RNC notice UE MBMS session to begin, and sets up connection of Iu signaling and the carrying of Iu user plane when needed.
If SGSN does not support the RA screening, the RA list information does not exist in " the MBMS session begins " message.
If SGSN supports Routing Area (hereinafter to be referred as RA) screening, also comprise information element " the interested UE place RA tabulation of idle pulley " in this message.When all have among all RA of SGSN add this MBMS business be in the UE of idle pulley the time, the straightforward procedure of this information of SGSN notice RNC is that the number that SGSN is provided with RA is a specific value, wherein a kind of method is that the number that RA is set equals maximum MBMS RA number, in this case, omit each Routing Area sign indicating number (hereinafter to be referred as RAC) of back.When all not adding this MBMS business among all RA of SGSN and being in the UE of idle pulley, the number that same SGSN is provided with RA is a specific value, and wherein a kind of method is that the number that RA is set equals 0, and the RAC of back does not exist.
402a RNC receives " the MBMS session begins " message.In " the MBMS session begins " message the interested UE place RA of the idle pulley " tabulation " when not existing, SGSN does not support the RA screening; In " the MBMS session begins " message, there is the RA list information, if the number of RA equals to indicate the particular value that adds this MBMS business and be in the UE of idle pulley is arranged all among all RA of SGSN, during for example maximum MBMS RA number, RNC just can know the UE of this MBMS business of adding that has idle pulley in all sub-districts.If the number of RA equals to indicate the particular value that does not all add this MBMS business among all RA of SGSN and be in the UE of idle pulley, for example 0 o'clock, RNC just can know the UE of this MBMS business of adding that does not have idle pulley in all sub-districts.The subsequent operation of RNC is same as the prior art.For example, if when satisfying in 202 at least one condition, RNC begins the RAB resource of MBMS traffic assignments request for this reason.RNC notifies UE in each sub-district, count in the sub-district that can not determine the PTM transmission mode etc.RNC distributes MBMS RAB resource, and the mechanism of transmission response message (comprising the setting of success and failure and cause value) is with existing identical.Here ignore detailed technology contents.
As NNSF is under the situation about activating, RNC has the UE that is in idle pulley that adds this MBMS business by knowing whether from specific value in " the MBMS session begins " message of each SGSN among all RA of SGSN, the UE that is in idle pulley that perhaps whether does not all add this MBMS business among all RA of SGSN, the processing of RNC is identical with existing process then, and RNC is also identical with existing counting to the treatment mechanism under the NNSF activation situation.Here ignore detailed count content.
If 401b SGSN supports the RA screening, in the MBMS session was carried out, SGSN sent " MBMS session updates " message and gives RNC, notified RNC " the RA tabulation at idle pulley UE place " with preceding comparing of once sending variation to take place.Comprise " the RA tabulation at the idle pulley UE place of change " in the message.If the RA tabulation is changed to the interested UE of idle pulley has been arranged all among all RA, SGSN is by value notice RNC specific in the message, and wherein a kind of method is maximum MBMS RA number for the number that " the new RA at idle pulley place " is set.In this case, omit the RAC tabulation.All do not had the interested UE of idle pulley among all RA if the RA tabulation is changed to, SGSN is by value notice RNC specific in the message, and wherein a kind of method is 0 for the number that " no longer including the RA of idle pulley UE " is set, and RAC does not exist.
402b RNC receives " MBMS session updates " message.If specific value is indicated in the message the interested UE of idle pulley has been arranged all among all RA, when for example the number of " the new RA at idle pulley place " is the MBMS RA number of maximum, RNC directly checks the sub-district that does not have at the MBMS service area among the new RA, if have, under the situation that MBMS RAB has set up, RNC MBMS RAB for this reason distributes other MBMS Radio Resource; Under the situation that does not have to set up at MBMS RAB, RNC begins to set up MBMS RAB.If above-mentioned condition does not satisfy, RNC can wait until that the RA list update at next idle pulley UE place or UE connect, and just the MBMS business is set up RAB for this reason.Successfully setting up at MBMS RAB is that RNC comprises " transport layer address " and " Iu transmission relation " in " response of MBMS session updates " message.
All there has not been the interested UE of idle pulley among all RA if specific value is indicated in " MBMS session updates " message, for example the number of " the new RA at idle pulley place " is 0 o'clock, RNC knows the interested UE that has not had idle pulley in all sub-districts, RNC may discharge the MBMS Radio Resource that exists in the sub-district that belongs to these RA, does not for example also have in these sub-districts under the situation of UE of Radio Resource connection mode (hereinafter to be referred as the RRC connection mode).
After the RA list update success at idle pulley UE place, RNC sends " response of MBMS session updates " message and passes through SGSN.
When RNC can not be correct the processing request time, for example the resource without any the sub-district can be established, RNC sends " failure of MBMS session updates " message and notifies SGSN.
Fig. 5 for another kind of SGSN notice RNC whether all RA all have idle pulley to all there not being the method for this UE among the professional interested UE of MBMS and all RA.Promptly usually finish this function by in existing message, adding new information word.RNC can know the correct information of idle pulley UE place RA by this process, thereby makes RNC that correct handling process be arranged, and simplifies the processing of RNC.
501a SGSN sends " the MBMS session begins " message and gives RNC, asks RNC notice UE MBMS session to begin, and sets up connection of Iu signaling and the carrying of Iu user plane when needed.Increase information element " RA indication " in this message, " RA indication " information element is optional.
If SGSN does not support the RA screening, RA list information and " RA indication " do not exist in " the MBMS session begins " message.
If SGSN supports Routing Area (hereinafter to be referred as RA) screening, also comprise information element " the UE place RA tabulation of this MBMS business of the adding of idle pulley " in this message.When all have among all RA of SGSN add this MBMS business be in the UE of idle pulley the time, it be corresponding value that SGSN is provided with " RA indication " information element, for example is 1, setting " RA that existence is in the interested UE of idle pulley tabulates " is not for existing.This MBMS is professional and when being in the UE of idle pulley, same, it be corresponding value that SGSN is provided with " RA indication " when all adding among all RA of SGSN, and for example 0, setting " the interested UE place RA of idle pulley tabulates " is not for existing.Information element under other the situation " RA indication " does not exist, and SGSN is provided with the number of UE place RA and the RAC tabulation of this MBMS business of adding of idle pulley.SGSN also can use two information words usually to indicate above two kinds of situations respectively, and " the RA tabulation of empty idle pulley UE " is set to " empty tabulation " and indicates the UE that does not all add this MBMS business among all RA of SGSN and be in idle pulley as information element.Information element " all RA of idle pulley UE tabulations " is set to " complete list " indicates all to be had this MBMS business of adding and be in idle pulley among all RA of SGSN UE.These two information elements all are optional.
502a RNC receives that " the MBMS session begins " is if message. in the message " RA indication " and the interested UE place RA of the idle pulley " tabulation " do not exist, if then SGSN does not support the RA screening. " RA indication " existence in " the MBMS session begins " message, RNC knows whether that according to the value of information element in the message " RA indication " UE that adds this MBMS business and be in idle pulley is arranged among all RA of SGSN, and for example the value of " RA indication " is 1; It is professional and be in the UE of idle pulley perhaps whether all not add this MBMS among all RA of SGSN, for example the value of " RA indication " is when to be 0. corresponding SGSN with two information words usually indicate above two kinds of situations, whether RNC exists according to " the RA tabulation of the idle pulley UE of sky " and " all RA of idle pulley UE tabulations " respectively and value determines whether all to have among all RA of SGSN the UE that adds this MBMS business and be in idle pulley, it is professional and to be in the subsequent operation of UE.RNC of idle pulley same as the prior art perhaps whether all not add this MBMS among all RA of SGSN. for example, if when satisfying in 202 at least one condition, the RAB resource .RNC that RNC begins MBMS traffic assignments request for this reason notifies UE in each sub-district, count in the sub-district that can not determine the PTM transmission mode etc. ignore detailed technology contents here.
As NNSF is under the situation about activating, whether RNC is by existing from " RA indication " in " the MBMS session begins " message of each SGSN and value accordingly, knowing whether all has the UE that is in idle pulley that adds this MBMS business among all RA of SGSN, for example the value of " RA indication " is 1; It is professional and be in the UE of idle pulley perhaps whether all not add this MBMS among all RA of SGSN, and for example the value of " RA indication " is 0.The processing of RNC is identical with existing process then.Here ignore detailed technology contents.
If 501b SGSN supports the RA screening, in the MBMS session was carried out, SGSN sent " MBMS session updates " message and gives RNC, notified RNC " the RA tabulation at idle pulley UE place " with preceding comparing of once sending variation to take place.Increase information element " RA indication " in this message, " RA indication " information element is optional.Among the RA that is changed to all SGSN UE is arranged all if the interested UE place RA of idle pulley tabulates, SGSN configuration information element " RA indication " is corresponding value, for example is 1, " the RA tabulation at the idle pulley UE place of change " is set for not existing.All do not had UE among all RA if the interested UE place RA of idle pulley tabulation is changed to, SGSN configuration information element " RA indication " is corresponding value, for example is 0, " the RA tabulation at the idle pulley UE place of change " is set for not existing." RA indication " is set for not existing under other situation.SGSN is provided with the RA tabulation of increase in " the idle pulley UE place RA tabulation of change " and the RA tabulation of deletion.SGSN also can use two information words usually to indicate above two kinds of situations respectively, and " the RA tabulation of empty idle pulley UE " is set to " sky is tabulated " indicates all not to have been had to add this MBMS business and be in idle pulley among all RA of SGSN UE as information element.Information element " all idle pulley UE RA tabulation " is set to " complete list " and indicates and had all among all RA of SGSN that to add this MBMS professional and be in the UE of idle pulley.These two information elements all are optional.
502b RNC receives " MBMS session updates " message.If " RA indication " is existence in " MBMS session updates " message, RNC knows whether that according to the value of information element in the message " RA indication " UE that is in idle pulley that adds this MBMS business is arranged among all RA of SGSN, and for example the value of " RA indication " is 1.RNC directly checks to be had among the new RA not in the sub-district of MBMS service area, if having, under the situation that MBMS RAB has set up, RNC MBMS RAB for this reason distributes other MBMS Radio Resource; Under the situation that does not have to set up at MBMS RAB, RNC begins to set up MBMS RAB.If above-mentioned condition does not satisfy, RNC can wait until that the RA list update at next idle pulley UE place or UE connect, and just the MBMS business is set up RAB for this reason.Successfully setting up at MBMS RAB is that RNC comprises " transport layer address " and " Iu transmission relation " in " response of MBMS session updates " message.
If " RA indication " is for existing in " MBMS session updates " message, RNC knows whether the UE that is in idle pulley that has not had to add this MBMS business among all RA of SGSN according to the value of information element in the message " RA indication ", and for example the value of " RA indication " is 0.RNC may discharge the MBMS Radio Resource that exists in the sub-district that belongs to these RA, does not for example also have in these sub-districts under the situation of UE of RRC connection mode.
When corresponding SGSN usually indicates above two kinds of situations with two information words, whether RNC exists according to " the RA tabulation of empty idle pulley UE " and " all RA of idle pulley UE tabulations " respectively and value determines whether all to have had among all RA of SGSN that to add this MBMS professional and be in the UE of idle pulley, perhaps the UE that whether has not all had to add this MBMS business and be in idle pulley among all RA of SGSN.
After the success of idle pulley UE place RA list update, RNC sends " response of MBMS session updates " message and passes through SGSN.
When RNC can not be correct the processing request time, for example the resource without any the sub-district can be established, RNC sends " failure of MBMS session updates " message and notifies SGSN.
Embodiment
The new method that Fig. 6 proposes for the present invention at Iu interface notifying MBMS service, the operating process of SGSN.
601SGSN receives message.
If 602 SGSN receive from GGSN come " the MBMS session begins request information, and 603SGSN preserves professional attribute, and the state that this MBMS bearer service is set is " activations ", and SGSN sends " the MBMS session begins response " message to GGSN.
604SGSN organizes " the MBMS session begins " message to RNC, if SGSN does not support RA screening, then " idle pulley UE place RA tabulation " do not exist.
If SGSN supports the RA screening, when this MBMS business of adding all being arranged among all RA and is in the UE of idle pulley, the first method that corresponding the present invention proposes, the number that SGSN is provided with " idle pulley UE place RA tabulation " RA is specific value, wherein a kind of method is maximum MBMS RA number for the number that " idle pulley UE place RA tabulation " RA is set, and omits the RAC of each RA correspondence.The second method that corresponding the present invention proposes, it be value accordingly that SGSN is provided with " RA indication ", for example 1, setting " idle pulley UE place RA tabulation " does not exist.
If SGSN supports the RA screening, when all not adding this MBMS business among all RA and being in the UE of idle pulley, the first method that corresponding the present invention proposes, the number that SGSN is provided with RA is specific value, for example 0 indicate the UE that does not all have idle pulley among all RA, the RAC of RA correspondence does not exist.The second method that corresponding the present invention proposes, it be value accordingly that SGSN is provided with " RA indication ", for example 0, setting " idle pulley UE place RA tabulation " does not exist.
If SGSN supports the RA screening, the second method that corresponding the present invention proposes, SGSN also can use two information words usually to indicate above two kinds of situations respectively, and " the RA tabulation of empty idle pulley UE " is set to " empty tabulation " and indicates the UE that does not all add this MBMS business among all RA of SGSN and be in idle pulley as information element.Information element " all RA of idle pulley UE tabulations " is set to " complete list " indicates all to be had this MBMS business of adding and be in idle pulley among all RA of SGSN UE.These two information elements all are optional.
Except both of these case, if SGSN supports the RA screening, SGSN is provided with number and each RAC of " idle pulley UE place RA tabulation " RA.The second method that corresponding the present invention proposes is provided with " RA indication " and does not exist.
605SGSN sends " the MBMS session begins " message and gives RNC.
Fig. 7 is the method for the new Iu interface notifying MBMS service of the present invention's proposition, the operating process of RNC.
701RNC receives message.
If 702 RNC receive next " MBMS session " message from SGSN, 703RNC preserves service attribute, and service condition is set.
704 corresponding first methods of the present invention, in " the MBMS session begins " message the interested UE place RA of the idle pulley " tabulation " when not existing, SGSN does not support the RA screening; Under the situation that " idle pulley UE place RA tabulation " exists, SGSN supports the RA screening.If the number of " idle pulley UE place RA tabulation " RA is specific value, during for example maximum MBMS RA number, RNC knows the UE that idle pulley is arranged among all RA.If the number of " idle pulley UE place RA tabulation " RA is specific value, for example 0 o'clock, RNC knew the UE that does not have idle pulley among all RA.If when satisfying in 202 at least one condition, RNC begins the RAB resource of MBMS traffic assignments request for this reason.RNC notifies UE in each sub-district, count in the sub-district that can not determine the PTM transmission mode etc.
As NNSF is under the situation about activating, RNC knows whether that by the specific value of " idle pulley UE place RA tabulation " RA number in " the MBMS session begins " message from each SGSN the UE that is in idle pulley that adds this MBMS business is arranged among all RA of SGSN, perhaps whether all do not add the UE that is in idle pulley of this MBMS business among all RA of SGSN, the processing of RNC is identical with existing process then. ignore detailed technology contents here.
Corresponding second method of the present invention, if " idle pulley UE place RA tabulation " and " RA indication " do not exist in " the MBMS session begins " message, then SGSN does not support the RA screening.If " RA indication " exists or " idle pulley UE place RA tabulation " exists, then SGSN supports the RA screening.By the corresponding value of " RA indication ", for example 1, RNC knows the UE that idle pulley is arranged among all RA.By the corresponding value of " RA indication ", for example 0, RNC knows the UE that does not have idle pulley among all RA.If " RA indication " do not exist, RNC knows the RA tabulation that has idle pulley UE according to " the idle pulley UE place RA tabulation " number of RA and value of each RAC.When corresponding SGSN usually indicates above two kinds of situations with two information words, whether RNC exists according to " the RA tabulation of empty idle pulley UE " and " all RA of idle pulley UE tabulations " respectively and value determines whether all to have had among all RA of SGSN that to add this MBMS professional and be in the UE of idle pulley, perhaps the UE that whether has not all had to add this MBMS business and be in idle pulley among all RA of SGSN.The operation of RNC is same as the prior art then, ignores detailed technology contents here.
It when beginning with the MBMS session here the operating process of understanding SGSN and RNC the example.When SGSN supports the RA screening,,, identical when the processing of SGSN and RNC begins with the MBMS session for the situation that does not all have the UE of interested idle pulley among the interested UE that is in idle pulley and all RA is all arranged among all RA for MBMS session updates process.That is: the first method that proposes of corresponding the present invention, if the interested UE that is in idle pulley is all arranged among all RA, the RA number that SGSN is provided with " the RA tabulation of increase " in " the idle pulley UE place RA tabulation of change " is specific value, wherein a kind of method is it to be set for maximum MBMS RA number, omits each RAC; If all there has not been the interested UE that is in idle pulley among all RA, " " the RA number is 0, and RAC does not exist in the RA tabulation of deletion in the SGSN setting " the idle pulley UE place RA tabulation of change ".Except both of these case, SGSN will provide the tabulation of RAC increase or deletion.RNC is according to identical rule parsing " the idle pulley UE place RA tabulation of change ".The second method that corresponding the present invention proposes, if the interested UE that is in idle pulley is all arranged among all RA, it be corresponding value that SGSN is provided with " RA indication ", for example 1, setting " the idle pulley UE place RA of change tabulates " does not exist.If all there has not been the interested UE that is in idle pulley among all RA, it be corresponding value that SGSN is provided with " RA indication ", for example 0, and setting " the idle pulley UE place RA of change tabulates " does not exist.Except both of these case, SGSN is provided with " RA indication " and does not exist, and provides the tabulation of RAC increase or deletion.SGSN also can use two information words usually to indicate above two kinds of situations respectively, and " the RA tabulation of empty idle pulley UE " is set to " sky is tabulated " indicates all not to have been had to add this MBMS business and be in idle pulley among all RA of SGSN UE as information element.Information element " all idle pulley UE RA tabulation " is set to " complete list " and indicates and had all among all RA of SGSN that to add this MBMS professional and be in the UE of idle pulley.These two information elements all are optional.RNC is according to identical rule parsing " the idle pulley UE place RA tabulation of change ".
Claims (6)
1. method at Iu interface notice multimedia broadcasting and multicast service comprises step:
1) the SGSN decision sends " the MBMS session begins " message and gives RNC, comprises information element " RA indication " in the described message;
2) RNC receives " the MBMS session begins " message;
3) if " RA indication " is corresponding value in " the MBMS session begins " message, RNC knows the UE of this MBMS business of adding that idle pulley is arranged among all RA, and RNC is the RAB resource of MBMS traffic assignments request for this reason.
2. method according to claim 1 is characterized in that: the value 1 of the professional UE of this MBMS of the adding that is used for indicating all RA that idle pulley is all arranged " RA indication ".
3. method according to claim 1, it is characterized in that also comprising if SGSN supports the RA screening, the professional UE of this MBMS of adding that idle pulley is arranged among all RA, SGSN are provided with that " RA indication " is corresponding value in the message, and setting " RA of idle pulley UE tabulates " is not for existing.
4. method at Iu interface notice multimedia broadcasting and multicast service comprises step:
1) the SGSN decision sends " the MBMS session begins " message and gives RNC, comprises information element " RA indication " in the described message;
2) RNC receives " the MBMS session begins " message;
3) if " RA indication " is corresponding value in " the MBMS session begins " message, RNC knows the UE of this MBMS business of adding that does not have idle pulley among all RA.
5. method according to claim 4 is characterized in that: the value 0 of the professional UE of this MBMS of the adding that is used for indicating all RA all not have idle pulley " RA indication ".
6. method according to claim 4, it is characterized in that also comprising if SGSN supports the RA screening, the professional UE of this MBMS of adding that does not have idle pulley among all RA, SGSN are provided with that " RA indication " is corresponding value in the message, and setting " idle pulley UE place RA tabulation " is not for existing.
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| CN101742704B (en) * | 2008-11-18 | 2012-07-18 | 财团法人资讯工业策进会 | Control device and message transmitting method thereof |
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