CN101583081B - Method, system and device for establishing synchronous bearing - Google Patents

Method, system and device for establishing synchronous bearing Download PDF

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CN101583081B
CN101583081B CN2008101067164A CN200810106716A CN101583081B CN 101583081 B CN101583081 B CN 101583081B CN 2008101067164 A CN2008101067164 A CN 2008101067164A CN 200810106716 A CN200810106716 A CN 200810106716A CN 101583081 B CN101583081 B CN 101583081B
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drnc
srnc
resource
delay
message
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CN101583081A (en
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杨晓东
张大钧
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Abstract

The invention discloses a method, a system and a device for establishing synchronous bearing. The method comprises the following steps: a drift radio network controller (DRNC) sends a synchronous establishment request message to a service radio network controller (SRNC); the SRNC sends a synchronous establishment response message to the DRNC according to the synchronous establishment request message, wherein the synchronous establishment response message carries resource collocation synchronous information; the DRNC sends a delay request message to the SRNC, wherein the delay request message carries delay information of the DRNC; and the SRNC confirms a moment at which a multimedia broadcast multicast service (MBMS) is sent in an air interface according to the delay information. The invention also discloses the system and the correlative device for establishing synchronous bearing. In the invention, the DRNC sends the self delay information to the SRNC, and therefore, the SRNC can fully know the current resource using condition of the DRNC to ensure that the resource distribution of the SRNC is more reasonable than a traditional mode.

Description

The mthods, systems and devices that a kind of synchronous bearer is set up
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to the CMMB communications field.
Background technology
MBMS is the multimedia broadcasting and multicast function of definition among the 3GPP (3rd Generation Partnership Project, third generation partner program).The MBMS technology is mainly at existing CDMA (Code Division Multiple Access; Code division multiple access) in the system, original classes of messages broadcast capability is strengthened, the technology that a little arrives the unidirectional multimedia service of multiple spot is provided; Thereby realize that Internet resources are shared, improve utilization rate of network resource.MBMS (Multimedia BroadcastMulticast Service; Multimedia broadcast multi-broadcasting business) supports multi-media broadcasting service and two kinds of patterns of multicast service; Both can be with multimedia video information directly to all users broadcastings; The contracted user that also can send to one group of charge watches, can help operator to carry out multimedia advertising, free and multiple commercial application such as pay-television channels, multimedia message mass-sending.MBMS can provide the following biography of the unidirectional multi-medium data from any to multiple spot with mode very efficient, economic, that share for a plurality of users.
Utilize MBMS to be implemented under a plurality of RNC (Radio Network Controller, radio network controller) and send multi-media broadcasting service simultaneously, what at first need solve is stationary problem.The whole network of MBMS relates to the synchronous of three aspects synchronously: physical frame is synchronous, resource distribution is synchronous and data are sent synchronously.With regard to TD-SCDMA (Time Division-SynchronizationCode Division Multiple Access; TD SDMA inserts) system; Because TDD (Time Division Duplex; Time division duplex) system adopts GPS (GlobalPositioning System, global positioning system) synchro system, so the physical frame between the whole network can be realized through GPS synchronously synchronously.Synchronously send synchronously for resource distribution, then need introduce new scheme and realize with data.Resource distribution need realize identical MBMS business is distributed identical various bearing resources at different RNC synchronously; As shown in Figure 1, be the sketch map of physical layer resources configuration synchronization, said physical layer resources; Comprise frequency resource, time slot, code channel; Simultaneously the coded system of sending data and modulation system are also required identically, in addition, comprise that also the relevant configuration of two layer three on layer is also wanted unanimity.Only guaranteeing under the condition that physical frame is synchronous and resource distribution is synchronous; Different RNC issues identical data; Guarantee that promptly data send when synchronous, could guarantee under different RNC the same MBMS business can UE (UserEquipment, subscriber equipment) side eat dishes without rice or wine merge.
Realize that at present the synchronous method of resource distribution has following three kinds of schemes:
1, through synchronous, as shown in Figure 2 between Iur interface one step realization RNC, for realizing the synchronous sketch map between RNC through one step of Iur interface.As shown in the figure; SRNC (Serving RadioNetwork Controller; Service wireless network controller) to the DRNC that belongs to the MBMS service area (Drifting Radio Network Controller; Floating radio network controller) sends MBMS Iur and set up request message synchronously, in this message, comprise physical layer resource allocation information, PDCP (Packet Data Convergence Protocol; The packet data protocol convergence protocol) parameter, RLC (Radio Link Control; Radio Link control) parameter, MAC (MediaAccess Control, medium access control) parameter, send this professional information such as cell ID, through a step realize between RNC synchronously.After DRNC received that the MBMS Iur of SRNC transmission sets up request message synchronously, according to these configuration informations, configuration transmission information and RLC, MAC entity were to reach the synchronous purpose of resource distribution.
2, through synchronous, as shown in Figure 3 between Iur interface two steps realization RNC, for realizing the synchronous sketch map between RNC through two steps of Iur interface.As shown in the figure, at first, DRNC sets up message synchronously to the SRNC initiation request; Thereafter; SRNC carries out a secondary response synchronously to DRNC's; Simultaneously the resource distribution synchronizing information is carried over, wherein comprise physical layer resource allocation information, PDCP parameter, RLC parameter, MAC parameter, send this professional information such as cell ID, DRNC is according to the configuration information of receiving; Configuration transmission information and RLC, MAC entity are to reach the synchronous purpose of resource distribution.
3, through OM (Operations and Maintenance, operation and maintenance) entity Resources allocation, the OM entity gives different RNC to the identical resource of same MBMS traffic assignments, to reach the synchronous purpose of resource distribution.
With resource configuration synchronization scheme one is example, realizes that in one step of Iur interface as shown in Figure 4, the sketch map for MBMS realizes broadcast multimedia business under a plurality of RNC mainly may further comprise the steps under the mode synchronous between RNC:
1) certain RNC of operator's configuration is as SRNC, and with respect to this SRNC, other RNC is called DRNC; And this SRNC of service area information configuration that each MBMS is professional, the RNC that service area information indicating services is covered;
2) service center BM-SC (Broadcast Multicast-Service Center; Broadcast/multicast service center) initiates a MBMS business; Send Session Start (session begins) signaling to SRNC through core net; SRNC sets up transmission channel through core net and BM-SC, prepares to receive the MBMS data;
3) SRNC sends MBMS Iur to the DRNC that belongs to this service area and sets up request message synchronously, wherein can comprise unified resource allocation information, PDCP parameter, RLC parameter, MAC parameter, send this professional information such as cell ID;
4) after DRNC receives that the MBMS Iur of SRNC transmission sets up request message synchronously, according to these configuration informations, configuration transmission information and RLC/MAC entity;
5) SRNC handles the packet that the Iu mouth is received according to the RLC parameter, confirms the wave point delivery time CFN of each RLCPDU (Protocol Data Unit, protocol Data Unit);
6) SRNC sends to each DRNC with the RLC bag that adds behind the CFN through the Iur transmission bearer;
7) DRNC receives the RLC PDU that SRNC sends, and sends to the Mac-m of each sub-district, this locality, and according to the timestamp of indicating among the FP (Frame Protocol, Frame Protocol), the initial CFN moment of TTI of these RLC PDU is sent in decision.
Though realize that the synchronous method of resource distribution can both realize that MBMS realizes broadcast multimedia business under a plurality of RNC for above-mentioned three kinds, there is following shortcoming in technique scheme:
SRNC in such scheme 1, the scheme 2 only just passes to DRNC to the resource distribution synchronizing information through a message transmission, can't understand the utilization of resources situation of current DRNC, does not consider between the different DRNC there are differences.For example, if the DRNC that the resource that SRNC distributes has can not distribute to the MBMS business in the corresponding time, this will cause the user under the whole DRNC all can not receive the MBMS business that this SRNC will issue.For example just in time the MBMS business of certain sub-district has taken the resource that SRNC distributes, and this resource that has just caused distributing can not be distributed to this MBMS business timely.In fact, perhaps over time, the resource that this sub-district takies will be released, if SRNC can understand the utilization of resources situation of DRNC, then SRNC can reasonably allocate the professional transmission of MBMS.
In the such scheme 3, through OM entity Resources allocation, the OM entity need be had gained some understanding to MBMS professional traffic carrying capacity and zero-time; Could be directed against different MBMS traffic assignments adequate resources; Also to understand simultaneously the utilization of resources situation of each RNC, could the reasonable distribution resource, thereby carry out resource allocation by the OM entity; Need OM entity and each RNC to carry out frequent information interaction, can increase the weight of system burden.
Summary of the invention
The problem that the present invention will solve is to propose the mthods, systems and devices that a kind of synchronous bearer is set up; When the solution prior art is sent the MBMS broadcast multimedia business under a plurality of RNC; Because SRNC can't understand the utilization of resources situation of current DRNC; Do not consider between the different DRNC there are differences, may cause some sub-district can't send the problem of MBMS broadcast multimedia business simultaneously.
For achieving the above object, the invention discloses the method that a kind of synchronous bearer is set up, may further comprise the steps: service wireless network controller SRNC receives that floating radio network controller DRNC sends sets up request message synchronously; Said SRNC sets up response message according to the said request message of setting up synchronously to said DRNC transmission synchronously, and the said response message of setting up synchronously carries the resource distribution synchronizing information; Said SRNC receives the delay request message that said DRNC sends, and said delay request message carries the deferred message of said DRNC, and said deferred message is confirmed according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC by said DRNC; Said SRNC confirms that according to said deferred message interface sends the professional moment of MBMS aloft.
As the embodiment of said method, said resource distribution synchronizing information comprises physical layer resources configuration information, packet data protocol convergence protocol PDCP parameter, Radio Link control RLC parameter, media access control MAC parameter.
In the above-described embodiments, said physical layer resources configuration information comprises carrier information, gap information and code channel information.
As the embodiment of said method, confirm that said deferred message for confirming Td time of delay, may further comprise the steps: said DRNC judges whether the resource of indicating in the said resource distribution synchronizing information is used by said DRNC; If the resource of said indication is not used by said DRNC, Td value time of delay of then said deferred message indication is 0; If the resource of said indication, is then calculated the time T w that the resource of the said indication of release need be waited for by said DRNC use, and Td value time of delay that said deferred message is indicated is Tw.
In the above-described embodiments; After the time T w that the said resource of said definite release indication need be waited for; Further comprising the steps of: when the time of delay of said deferred message indication Td greater than preset maximum delay Tm, judge further then whether the business of the resource that takies said indication is single Zone; If said business is single Zone, then said DRNC sends said service dispatching on other resources, perhaps said business is kept in the buffer area to suspend and sends, and be 0 with the Td value, representes that the resource of said indication is released; If said business is not single Zone, be To then with the Td value, represent that the resource of said indication can't discharge.
In the above-described embodiments, also comprise: Td time of delay to said deferred message uses bit information to encode.
In the above-described embodiments; Comprise using bit information to encode the time of delay of said deferred message: use 3 bits to encode the time of delay to said deferred message indication; Be To 000 STA representation time of delay; Be 0 111 STA representation time of delays, and all the other six states are represented the different values of Td respectively.
In the above-described embodiments; Said SRNC may further comprise the steps according to the moment that the definite interface aloft of said deferred message sends the MBMS business: said SRNC receives the said deferred message that all said DRNC send; If time of delay, Td was not equal to To, then write down said Td value; Said SRNC selects Td time of delay of the maximum that said DRNC reports to be designated as Tn; The professional moment of the MBMS of interface transmission aloft is at least current time and delays Tn.
In the above-described embodiments; Said definite interface aloft sends the professional moment of MBMS through said SRNC configuration Connection Frame Number CFN realization; May further comprise the steps: said SRNC receives the said deferred message that all said DRNC send, if time of delay, Td was not equal to To, then writes down said Td value; Said SRNC selects Td time of delay of the maximum that said DRNC reports to be designated as Tn; Said SRNC calculates the corresponding CFN frame number that sends multimedia broadcast multi-broadcasting business MBMS according to Tn, the MBMS business is delayed the Tn time at current time send.
The present invention also proposes the method that a kind of synchronous bearer is set up, and may further comprise the steps: DRNC sends to SRNC and sets up request message synchronously; Said DRNC receives that said SRNC sends sets up response message synchronously, and the said response message of setting up synchronously carries the resource distribution synchronizing information; Said DRNC confirms deferred message according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC; And pass through to postpone request message and send to said SRNC, said SRNC confirms that according to said deferred message interface sends the professional moment of MBMS aloft.
As the embodiment of said method, confirm said deferred message for confirming Td time of delay, further comprising the steps of: said DRNC judges whether the resource of indicating in the said resource distribution synchronizing information is used by said DRNC; If the resource of said indication is not used by said DRNC, Td value time of delay of then said deferred message indication is 0; If the resource of said indication, is then calculated the time T w that the resource of the said indication of release need be waited for by said DRNC use, and Td value time of delay that said deferred message is indicated is Tw.
In the above-described embodiments; After the time T w that the said resource of said definite release indication need be waited for; Further comprising the steps of: when the time of delay of said deferred message indication Td greater than preset maximum delay Tm, judge further then whether the business of the resource that takies said indication is single Zone; If said business is single Zone, then said DRNC sends said service dispatching on other resources, perhaps said business is kept in the buffer area to suspend and sends, and be 0 with the Td value, representes that the resource of said indication is released; If said business is not single Zone, be To then with the Td value, represent that the resource of said indication can't discharge.
In the above-described embodiments, also comprise: Td time of delay to said deferred message uses bit information to encode.
In the above-described embodiments; Comprise using bit information to encode the time of delay of said deferred message: use 3 bits to encode the time of delay to said deferred message indication; Be To 000 STA representation time of delay; Be 0 111 STA representation time of delays, and all the other six states are represented the different values of Td respectively.
The present invention also proposes the system that a kind of synchronous bearer is set up; Comprise SRNC and at least one DRNC; Said SRNC is used to receive that said DRNC sends sets up request message synchronously, and through setting up response message synchronously the resource distribution synchronizing information is sent to said DRNC; And the delay request message that receives the deferred message that carries said DRNC of said DRNC transmission, and according to the said deferred message professional moment of definite transmission of interface aloft MBMS; Said DRNC; Be used for setting up request message synchronously to said SRNC transmission; And obtain the resource distribution synchronizing information according to the response message of setting up synchronously that said SRNC returns; And confirm deferred message, and send to said SRNC through postponing request message according to the operating position of said resource distribution synchronizing information and current resource.
The present invention also proposes a kind of SRNC; Comprise receiver module, sending module and initial moment determination module; Said receiver module is used to receive that DRNC sends sets up request message synchronously, and receives the delay request message that said DRNC sends; Said delay request message carries the deferred message of said DRNC, and said deferred message is confirmed according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC by said DRNC; Said sending module is used for setting up response message according to the said request message of setting up synchronously synchronously to said DRNC transmission, and the said response message of setting up synchronously carries the resource distribution synchronizing information; Said initial moment determination module is used for confirming that according to said deferred message interface sends the professional moment of MBMS aloft.
As the embodiment of said apparatus, the resource distribution synchronizing information that said sending module sends, said resource distribution synchronizing information comprises physical layer resources configuration information, PDCP parameter, RLC parameter, MAC parameter.
As the embodiment of said apparatus, said initial moment determination module is a MBMS business configuration corresponding C FN frame number, sends the MBMS business through the CFN frame number simultaneously by each DRNC.
The present invention also proposes a kind of DRNC, comprises receiver module, sending module and computing module, and said receiver module is used to receive that SRNC sends sets up response message synchronously, and the said response message of setting up synchronously carries the resource distribution synchronizing information; Said sending module; Be used for setting up request message synchronously to the SRNC transmission; And through postponing request message to said SRNC transmission lag information; Said deferred message confirms that according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC said SRNC confirms that according to said deferred message interface sends the professional moment of MBMS aloft; Said computing module is used for confirming deferred message according to the operating position that receives said resource distribution synchronizing information and current resource, and said deferred message sends to said SRNC through postponing request message.
Embodiment as said apparatus; The said resource distribution synchronizing information that said computing module obtains according to receiver module; Its other resources operating position is inquired about; Calculate Td time of delay in the said deferred message, if the resource of said indication is not used by said DRNC, then said computing module is 0 with the Td value; If the resource of said indication is used by said DRNC, then computing module calculates the time T w that the resource that discharges said indication need be waited for, and is Tw with Td value time of delay of said deferred message indication.
Embodiment as said apparatus; The time of delay that said sending module obtains according to computing module; Send to said SRNC after will encoding with 3 bit informations time of delay; The described DRNC of 000 STA representation can't discharge resource, and be 0 111 STA representation time of delays, and all the other six states are represented the different values of time of delay respectively.
The present invention also proposes a kind of RNC; Comprise receiver module, sending module, computing module and initial moment determination module; Said receiver module is used to receive setting up request message synchronously and postponing request message of coupled DRNC transmission, and said delay request message carries the deferred message of said DRNC; And receive that coupled SRNC sends set up response message synchronously, the said response message of setting up synchronously carries the resource distribution synchronizing information; Said sending module; Be used for setting up response message synchronously to coupled DRNC transmission according to the said request message of setting up synchronously; The said response message of setting up synchronously carries the resource distribution synchronizing information, and sets up request message synchronously to coupled SRNC transmission; Said computing module, the said resource distribution synchronizing information that the said SRNC that is used for receiving according to said receiver module sends is confirmed deferred message with the operating position of current resource, said deferred message sends to said SRNC through the delay request message; Said initial moment determination module, deferred message confirms that interface sends the professional moment of MBMS aloft described in the delay request message that is used for sending according to the said DRNC that said receiver module receives.
Technical scheme of the present invention has the following advantages, and the present invention lets SRNC fully understand DRNC current resource operating position through carrying out three step alternant way between SRNC and the DRNC, makes SRNC more reasonable with respect to traditional mode in resource allocation.And, utilize technical scheme of the present invention, can avoid occurring the situation of transmission MBMS service fail so that RNC as much as possible can send the MBMS business simultaneously at some RNC, just can avoid under some DRNC, can't sending this professional situation.In addition, realize technical scheme of the present invention, only need on the basis of original system, increase a spot of signaling consumption and just can realize, need not existing system is made big adjustment, realize simple.
Description of drawings
Fig. 1 is the sketch map of physical layer resources configuration synchronization;
Fig. 2 is for realizing the synchronous sketch map between RNC through one step of Iur interface;
Fig. 3 is for realizing the synchronous sketch map between RNC through two steps of Iur interface;
Fig. 4 is MBMS realizes broadcast multimedia business under a plurality of RNC a sketch map;
Fig. 5 is for realizing the synchronous sketch map between RNC through three steps of Iur interface;
The systematic functional structrue figure that Fig. 6 sets up for synchronous bearer;
Fig. 7 is the RNC functional structure chart.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail:
The present invention mainly utilizes the MBMS business characteristics not too responsive to time delay; Proposition is through carrying out three step alternant way between SRNC and the DRNC; Let SRNC fully understand DRNC current resource operating position, make SRNC more reasonable with respect to traditional mode in resource allocation.
As shown in Figure 5; For three steps of Iur interface of passing through that the present invention proposes are realized the synchronous sketch map between RNC; It is mutual that the present invention proposed to carry out between SRNC and the DRNC three steps; Report the current resource operating position through DRNC to SRNC, thereby make SRNC more reasonable to the distribution of resource, the method that the present invention proposes may further comprise the steps:
Step S100, DRNC sends MBMS to SRNC and sets up request message synchronously.The method of the present invention's proposition is to pass through the Iur interface to realize that the carrying between the RNC is synchronous, realizes that resource distribution is synchronous and the data transmission is synchronous, at first initiates the request of foundation synchronously by DRNC to SRNC, sets up request message synchronously to the SRNC transmission.Preferably, in step S100, set up request message synchronously to the transmission of the MBMS of SRNC chain of command entity by the MBMS chain of command entity of DRNC.
Step S110, SRNC collects the resource distribution synchronizing information.After SRNC receives that the MBMS of DRNC transmission sets up request message synchronously, professional according to the MBMS that will send, confirm that transmission should the required resource information occupied of business.Because the MBMS service needed is sent under a plurality of RNC simultaneously; So what resource distribution will be done synchronously is that identical MBMS business is distributed identical resource at different RNC; It is identical to comprise that physical layer, two layer three configuration information of layer all need, could guarantee that like this same MBMS business of transmission under different RNC can merge at the air interface oral-lateral of receiving terminal.Initiated this professional SRNC before sending the MBMS business, must collect the resource distribution synchronizing information, so that resource distribution synchronizing information that should business sends to other DRNC.
For example, resource distribution synchronizing information comprises physical layer resources configuration information, two layer three resource allocation information of layer.Wherein, the physical layer resources configuration information comprises carrier information, gap information, code channel information, and to sending the coded system and the modulation system of data.The resource allocation information that layer is two layer three comprises the PDCP/RLC/MAC parameter, and other need keep beared information consistent between each RNC.Obviously, enumerating of above-mentioned configuration information type only is used to illustrate essence of the present invention, and non-limiting resource distribution synchronizing information can only be the above-mentioned type.Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
S200:SRNC sends MBMS to DRNC and sets up response message synchronously.SRNC sets up response message synchronously through MBMS, and the resource distribution synchronizing information that MBMS is professional sends to relevant DRNC.Preferably, in step S200, synchronously set up response according to request to the transmission of the MBMS of DRNC chain of command entity by the MBMS chain of command entity of SRNC and disappear, wherein carry the resource distribution synchronizing information.
S210:DRNC confirms deferred message according to the resource distribution synchronizing information.
DRNC at first will inquire about under the current state after receiving the resource distribution synchronizing information of SRNC transmission, and the already used resource in each sub-district is understood its other resources and utilized situation.The related resource that said resource is just mentioned among the step S110 comprises the resource allocation information equivalent-load information of two layer three of physical layer resources configuration information, layer.Because the MBMS service needed is sent under a plurality of RNC simultaneously, be that identical MBMS business is distributed identical resource at different RNC so resource distribution will do synchronously.For example, with regard to the physical layer resources configuration information, according to the resource distribution synchronizing information from SRNC, this MBMS business will be sent at first carrier second time slot the the 3rd, the 4th, the 5th code channel.If certain business that certain sub-district under the current time DRNC issues has by chance used first carrier second time slot the the 3rd, the 4th, the 5th code channel to send; Then this DRNC can't send the MBMS business according to the desired resource distribution synchronizing information of SRNC at current time, forms resource contention.
Obviously, because the resource allocation between each RNC is independently, therefore, for the different moment, for different RNC, its resource operating position has nothing in common with each other.Operator can dispose any one RNC as SRNC, and with respect to this SRNC, other RNC is called DRNC.If SRNC can send under a plurality of RNC in the MBMS business, understand other RNC current resource operating positions, just can avoid occurring the situation of transmission MBMS service fail at some RNC, just can avoid under some DRNC, can't sending this professional situation.Therefore, whether DRNC need exist conflict according to the resource information judgement and the current resource of using of DRNC of indicating in the resource distribution synchronizing information, and DRNC reflects whether there is conflict through confirming Td time of delay in the deferred message.
Preferably, if the not conflict of the current resource of using of resource information of indicating in the resource distribution synchronizing information and DRNC, the resource of indication is not used by DRNC, and Td value time of delay of then said deferred message indication is 0.
Preferably, if conflict appears in the current resource used of resource of indicating in the resource distribution synchronizing information and DRNC, DRNC then calculates the time T w that the resource that discharges said indication need be waited for, and is Tw with Td value time of delay of deferred message indication.
Professional transmission has the qualification of delay if system is to this MBMS, and for example, the maximum delay that preset this business of system configuration allows is Tm, and then SRNC must send down business in the maximum delay Tm time.The value of Tm can be selected according to this MBMS professional characteristic, system requirements.Preferably, when time of delay of deferred message indication greater than the maximum delay Tm that allows, DRNC judges then whether the business of using said resource is the uni-cell MBMS business; If using the business of this resource professional as uni-cell MBMS, DRNC can send this service dispatching on other resources, perhaps this business is kept in the buffer area; And notice is high-rise and UE suspends and should business send; Be 0 with the Td value simultaneously, represent that the resource of said indication discharges, be 0 time of delay.If take the business of this resource is that a plurality of cell MBMSs are professional, and the unsuitable transmission of interrupting this business of DRNC is To with the Td value then, representes that the resource of said indication can't discharge in official hour.Obviously; Based on those skilled in the art's general knowledge, DRNC also can make the judgement selection according to MBMS professional priority or other standards, and various adjustment are made in the adjustment of resource; Thereby confirm the occurrence of time of delay in the deferred message, said variation should be protection range of the present invention and contains.
After understanding the deferred message of DRNC, can use bit information to encode to Td time of delay of said deferred message.Preferably, DRNC is to using 3 bit informations to encode the time of delay of deferred message indication.For example, with 000 STA representation time of delay be To, be 0 111 STA representation time of delays, all the other six states are represented the different values of Td respectively.Obviously, can explain deferred message, can understand the purpose of current DRNC the operating position of the resource of indicating in the said resource distribution synchronizing information as long as reach SRNC through other modes.Based on those skilled in the art's general knowledge, the coded system of said deferred message is not limited to the form of embodiment exemplified, can make various adjustment to the coded system of deferred message, said variation should be protection range of the present invention and contains.
S300:DRNC sends MBMS to SRNC and postpones request message.In order to let SRNC understand the resource operating position of DRNC, the MBMS chain of command entity of DRNC postpones request message through MBMS, and deferred message is sent to SRNC.
S310:SRNC confirms that according to deferred message interface sends the professional moment of MBMS aloft.SRNC may receive the deferred message of a plurality of DRNC feedbacks, and preferably, SRNC confirms that the professional moment of the MBMS of interface transmission aloft makes DRNC as much as possible can send the MBMS business simultaneously.Because separate the having nothing in common with each other of utilization of resources situation of each DRNC; For the DRNC that can't discharge resource at the appointed time; SRNC can not consider these DRNC when sending the MBMS business; For the DRNC that can discharge resource at the appointed time, SRNC can select suitable delivery time, makes DRNC as much as possible can send the MBMS business simultaneously.
Preferably, SRNC receives the deferred message that all DRNC send, if Td is not equal to To, does not promptly exist under the situation that resource can't discharge, and writes down corresponding Td value; Simultaneously, SRNC sorts to each Td value, confirms wherein to have the Td value of maximum delay, is designated as Tn; The SRNC professional moment of the MBMS of interface transmission aloft is at least current time and delays Tn.Obviously; Said method is to guarantee to make DRNC as much as possible can send the professional a kind of mode of MBMS simultaneously because the transmission between the Iub interface exists the transmission between transmission delay, the Iur interface to have transmission delay, DRNC scheduling simultaneously or discharge conflicted resource also need the regular hour; Therefore; SRNC can take all factors into consideration the influence of various factors according to systematic function, confirms that interface sends the professional moment of MBMS aloft.
Preferably, SRNC confirms that interface sends the MBMS chain of command physical arrangements CFN frame number realization of the professional moment of MBMS through SRNC aloft.The MBMS chain of command entity of SRNC is unified considers various delays, comprises deferred message and intrasystem other processing delay of each DRNC feedback, gives MBMS uniform service configuration corresponding C FN frame number, and through Iur FP the Frame of MBMS is sent to DRNC.Like this, all base stations obtain having the MBMS data service of unified CFN frame number among SRNC and the DRNC, because CFN is identical, the radio frames that therefore calculates according to CFN is also identical, is implemented in and sends the MBMS business under a plurality of RNC simultaneously.Equally, in the present embodiment, the zero-time that the CFN frame number is confirmed also can make said DRNC as much as possible send the MBMS business simultaneously.
As shown in Figure 6, be the systematic functional structrue figure that a kind of synchronous bearer of the present invention's proposition is set up, this system comprises SRNC and at least one DRNC.Wherein, SRNC100 is used to receive that DRNC200 sends sets up request message synchronously; And the resource distribution synchronizing information is sent to DRNC200 through setting up response message synchronously; And the delay request message that receives the deferred message that carries DRNC200 of DRNC200 transmission, and according to the deferred message professional moment of definite transmission of interface aloft MBMS.Wherein, DRNC200 is used for setting up request message synchronously to the SRNC100 transmission; And obtain the resource distribution synchronizing information according to the response message of setting up synchronously that SRNC100 returns; And confirm deferred message, and send to SRNC100 through postponing request message according to the operating position of resource distribution synchronizing information and current resource.
Wherein, SRNC100 of the present invention comprises receiver module 110, sending module 120 and initial moment determination module 130.Receiver module 110 is used to receive that DRNC200 sends sets up request message synchronously; And the delay request message that receives the DRNC200 transmission; Wherein, The delay request message carries the deferred message of DRNC200, and deferred message is confirmed according to the operating position of resource distribution synchronizing information and current resource by DRNC200.Sending module 120 is used for setting up response message according to setting up request message synchronously synchronously to the DRNC200 transmission, sets up response message synchronously and carries the resource distribution synchronizing information.Initial moment determination module 130 is used for confirming that according to deferred message interface sends the professional moment of MBMS aloft.
As preferred version of the present invention, the resource distribution synchronizing information that sending module 120 sends comprises physical layer resources configuration information, PDCP/RLC/MAC parameter, and said physical layer resources configuration information comprises carrier information, gap information, code channel information.
As preferred version of the present invention, the deferred message of each DRNC that initial moment determination module 130 receives according to receiver module 110 is confirmed as the initial moment of synchronous bearer and is made said DRNC as much as possible can send the professional moment of MBMS simultaneously.
As preferred version of the present invention, initial moment determination module 130 is a MBMS business configuration corresponding C FN frame number, sends the MBMS business through the CFN frame number simultaneously by each DRNC.
Wherein, DRNC200 of the present invention comprises receiver module 110, sending module 120 and computing module 130.Receiver module 110 is used to receive that SRNC100 sends sets up response message synchronously, sets up response message synchronously and carries the resource distribution synchronizing information.Sending module 120 is used for setting up request message synchronously to the SRNC100 transmission; And through postponing request message to SRNC100 transmission lag information; Deferred message confirms that according to the operating position of resource distribution synchronizing information and current resource SRNC100 confirms that according to said deferred message interface sends the professional moment of MBMS aloft.Computing module 130 is used for confirming deferred message according to the operating position that receives said resource distribution synchronizing information and current resource that deferred message sends to SRNC100 through postponing request message.
As preferred version of the present invention; The said resource distribution synchronizing information that computing module 130 obtains according to receiver module 110; Its other resources operating position is inquired about; Calculate Td time of delay in the said deferred message, if the resource of said indication is not used by DRNC200, then said computing module 130 is 0 with the Td value; If the resource of said indication is used by DRNC200, then computing module 130 calculates the time T w that the resource that discharges indication need be waited for, and is Tw with Td value time of delay of deferred message indication.
As preferred version of the present invention; The time of delay that sending module 120 obtains according to computing module 130; Send to SRNC100 after will encoding with 3 bit informations time of delay, wherein, 000 STA representation DRNC200 can't discharge resource; Be 0 111 STA representation time of delays, and all the other six states are represented the different values of time of delay respectively.
As shown in Figure 7, the functional structure chart of a kind of RNC that proposes for the present invention.This RNC300 comprises receiver module 310, sending module 320, computing module 330 and initial moment determination module 340.Wherein, Receiver module 310 is used to receive setting up request message synchronously and postponing request message of coupled DRNC transmission; The delay request message carries the deferred message of DRNC; And receive that coupled SRNC sends set up response message synchronously, set up response message synchronously and carry the resource distribution synchronizing information.Sending module 320 is used for setting up response message according to setting up request message synchronously synchronously to coupled DRNC transmission, sets up response message synchronously and carries the resource distribution synchronizing information, and set up request message synchronously to coupled SRNC transmission.The resource distribution synchronizing information that the SRNC that computing module 330 is used for receiving according to receiver module 310 sends and the operating position of current resource are confirmed deferred message, and deferred message sends to SRNC through sending module 320 through postponing request message.The delay request message deferred message that the DRNC that initial moment determination module 340 is used for receiving according to receiver module 310 sends confirms that interface sends the professional moment of MBMS aloft.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (22)

1. the method that synchronous bearer is set up is characterized in that, may further comprise the steps:
Service wireless network controller SRNC receives that floating radio network controller DRNC sends sets up request message synchronously;
Said SRNC sets up response message according to the said request message of setting up synchronously to said DRNC transmission synchronously, and the said response message of setting up synchronously carries the resource distribution synchronizing information;
Said SRNC receives the delay request message that said DRNC sends, and said delay request message carries the deferred message of said DRNC, and said deferred message is confirmed according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC by said DRNC;
Said SRNC confirms the moment of the multimedia broadcast multi-broadcasting business of interface transmission aloft MBMS according to said deferred message.
2. the method that synchronous bearer as claimed in claim 1 is set up; It is characterized in that said resource distribution synchronizing information comprises physical layer resources configuration information, packet data protocol convergence protocol PDCP parameter, Radio Link control RLC parameter, media access control MAC parameter.
3. the method that synchronous bearer as claimed in claim 2 is set up is characterized in that said physical layer resources configuration information comprises carrier information, gap information and code channel information.
4. the method that synchronous bearer as claimed in claim 1 is set up is characterized in that, confirms that said deferred message for confirming Td time of delay, may further comprise the steps:
Said DRNC judges whether the resource of indicating in the said resource distribution synchronizing information is used by said DRNC;
If the resource of said indication is not used by said DRNC, Td value time of delay of then said deferred message indication is 0;
If the resource of said indication, is then calculated the time T w that the resource of the said indication of release need be waited for by said DRNC use, and Td value time of delay that said deferred message is indicated is Tw.
5. the method that synchronous bearer as claimed in claim 4 is set up is characterized in that, and is after the time T w that the said resource of said definite release indication need be waited for, further comprising the steps of:
When the time of delay of said deferred message indication Tw greater than preset maximum delay Tm, judge further then whether the business of the resource that takies said indication is single Zone;
If said business is single Zone, then said DRNC sends said service dispatching on other resources, perhaps said business is kept in the buffer area to suspend and sends, and be 0 with the Td value, representes that the resource of said indication is released;
If said business is not single Zone, be To then with the Td value, represent that the resource of said indication can't discharge.
6. the method that synchronous bearer as claimed in claim 5 is set up is characterized in that, also comprises: Td time of delay to said deferred message uses bit information to encode.
7. the method that synchronous bearer as claimed in claim 6 is set up is characterized in that, comprises using bit information to encode the time of delay of said deferred message:
Use 3 bits to encode the time of delay to the indication of said deferred message, and be To 000 STA representation time of delay, and be 0 111 STA representation time of delays, and all the other six states are represented the different values of Td respectively.
8. the method that synchronous bearer as claimed in claim 5 is set up is characterized in that, said SRNC may further comprise the steps according to the moment that the definite interface aloft of said deferred message sends the MBMS business:
Said SRNC receives the said deferred message that all said DRNC send, if time of delay, Td was not equal to To, then writes down said Td value;
Said SRNC selects Td time of delay of the maximum that said DRNC reports to be designated as Tn;
The professional moment of the MBMS of interface transmission aloft is at least current time and delays Tn.
9. the method that synchronous bearer as claimed in claim 5 is set up is characterized in that, said definite interface aloft sends the professional moment of MBMS through said SRNC configuration Connection Frame Number CFN realization, may further comprise the steps:
Said SRNC receives the said deferred message that all said DRNC send, if time of delay, Td was not equal to To, then writes down said Td value;
Said SRNC selects Td time of delay of the maximum that said DRNC reports to be designated as Tn;
Said SRNC calculates and sends the professional corresponding CFN frame number of MBMS according to Tn, the MBMS business is delayed the Tn time at current time send.
10. the method that synchronous bearer is set up is characterized in that, may further comprise the steps:
Floating radio network controller DRNC sends to service wireless network controller SRNC and sets up request message synchronously;
Said DRNC receives that said SRNC sends sets up response message synchronously, and the said response message of setting up synchronously carries the resource distribution synchronizing information;
Said DRNC confirms deferred message according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC; And pass through to postpone request message and send to said SRNC, said SRNC confirms that according to said deferred message interface sends the professional moment of multimedia broadcast multi-broadcasting business MBMS aloft.
11. the method that synchronous bearer as claimed in claim 10 is set up is characterized in that, confirms that said deferred message is to confirm Td time of delay, and is further comprising the steps of:
Said DRNC judges whether the resource of indicating in the said resource distribution synchronizing information is used by said DRNC;
If the resource of said indication is not used by said DRNC, Td value time of delay of then said deferred message indication is 0;
If the resource of said indication, is then calculated the time T w that the resource of the said indication of release need be waited for by said DRNC use, and Td value time of delay that said deferred message is indicated is Tw.
12. the method that synchronous bearer as claimed in claim 11 is set up is characterized in that, and is after the time T w that the said resource of said definite release indication need be waited for, further comprising the steps of:
When the time of delay of said deferred message indication Tw greater than preset maximum delay Tm, judge further then whether the business of the resource that takies said indication is single Zone;
If said business is single Zone, then said DRNC sends said service dispatching on other resources, perhaps said business is kept in the buffer area to suspend and sends, and be 0 with the Td value, representes that the resource of said indication is released;
If said business is not single Zone, be To then with the Td value, represent that the resource of said indication can't discharge.
13. the method that synchronous bearer as claimed in claim 12 is set up is characterized in that, also comprises: Td time of delay to said deferred message uses bit information to encode.
14. the method that synchronous bearer as claimed in claim 13 is set up is characterized in that, comprises using bit information to encode the time of delay of said deferred message:
Use 3 bits to encode the time of delay to the indication of said deferred message, and be To 000 STA representation time of delay, and be 0 111 STA representation time of delays, and all the other six states are represented the different values of Td respectively.
15. the system that synchronous bearer is set up is characterized in that, comprises service wireless network controller SRNC and at least one floating radio network controller DRNC,
Said SRNC; Be used to receive that said DRNC sends sets up request message synchronously; And the resource distribution synchronizing information is sent to said DRNC through setting up response message synchronously; And the delay request message that receives the deferred message that carries said DRNC of said DRNC transmission, and according to the definite transmission of interface aloft of the said deferred message professional moment of multimedia broadcast multi-broadcasting business MBMS;
Said DRNC; Be used for setting up request message synchronously to said SRNC transmission; And obtain the resource distribution synchronizing information according to the response message of setting up synchronously that said SRNC returns; And confirm deferred message, and send to said SRNC through postponing request message according to the operating position of said resource distribution synchronizing information and current resource.
16. a service wireless network controller SRNC is characterized in that, comprises receiver module, sending module and initial moment determination module,
Said receiver module; Be used to receive that floating radio network controller DRNC sends sets up request message synchronously; And the delay request message that receives said DRNC transmission; Said delay request message carries the deferred message of said DRNC, and said deferred message is confirmed according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC by said DRNC;
Said sending module is used for setting up response message according to the said request message of setting up synchronously synchronously to said DRNC transmission, and the said response message of setting up synchronously carries the resource distribution synchronizing information;
Said initial moment determination module is used for confirming that according to said deferred message interface sends the professional moment of multimedia broadcast multi-broadcasting business MBMS aloft.
17. SRNC as claimed in claim 16; It is characterized in that; The resource distribution synchronizing information that said sending module sends, said resource distribution synchronizing information comprise physical layer resources configuration information, packet data protocol convergence protocol PDCP parameter, Radio Link control RLC parameter, media access control MAC parameter.
18. SRNC as claimed in claim 17 is characterized in that, said initial moment determination module is a MBMS business configuration corresponding C FN frame number, sends the MBMS business through the CFN frame number simultaneously by each DRNC.
19. a floating radio network controller DRNC is characterized in that, comprises receiver module, sending module and computing module,
Said receiver module is used to receive that service wireless network controller SRNC sends sets up response message synchronously, and the said response message of setting up synchronously carries the resource distribution synchronizing information;
Said sending module; Be used for setting up request message synchronously to the SRNC transmission; And through postponing request message to said SRNC transmission lag information; Said deferred message confirms that according to the operating position of said resource distribution synchronizing information and the current resource of said DRNC said SRNC confirms that according to said deferred message interface sends the professional moment of multimedia broadcast multi-broadcasting business MBMS aloft;
Said computing module is used for confirming deferred message according to the operating position that receives said resource distribution synchronizing information and current resource, and said deferred message sends to said SRNC through postponing request message.
20. DRNC as claimed in claim 19; It is characterized in that; Said computing module is inquired about its other resources operating position according to the said resource distribution synchronizing information that receiver module obtains, and calculates Td time of delay in the said deferred message; If the resource of said indication is not used by said DRNC, then said computing module is 0 with the Td value; If the resource of said indication is used by said DRNC, then computing module calculates the time T w that the resource that discharges said indication need be waited for, and is Tw with Td value time of delay of said deferred message indication.
21. DRNC as claimed in claim 20; It is characterized in that; Send to said SRNC after will encoding with 3 bit informations time of delay the time of delay that said sending module obtains according to computing module, and the described DRNC of 000 STA representation can't discharge resource; Be 0 111 STA representation time of delays, and all the other six states are represented the different values of time of delay respectively.
22. a radio network controller (RNC) is characterized in that, comprises receiver module, sending module, computing module and initial moment determination module,
Said receiver module; Be used to receive setting up request message synchronously and postponing request message of coupled floating radio network controller DRNC transmission; Said delay request message carries the deferred message of said DRNC; And receive that coupled service wireless network controller SRNC sends set up response message synchronously, the said response message of setting up synchronously carries the resource distribution synchronizing information;
Said sending module; Be used for setting up response message synchronously to coupled DRNC transmission according to the said request message of setting up synchronously; The said response message of setting up synchronously carries the resource distribution synchronizing information, and sets up request message synchronously to coupled SRNC transmission;
Said computing module, the said resource distribution synchronizing information that the said SRNC that is used for receiving according to said receiver module sends is confirmed deferred message with the operating position of current resource, said deferred message sends to said SRNC through the delay request message;
Said initial moment determination module, deferred message confirms that interface sends the professional moment of multimedia broadcast multi-broadcasting business MBMS aloft described in the delay request message that is used for sending according to the said DRNC that said receiver module receives.
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