CN101547403A - Method, system and equipment for realizing synchronization between radio network controllers - Google Patents
Method, system and equipment for realizing synchronization between radio network controllers Download PDFInfo
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Abstract
The invention discloses a method, a system and equipment for realizing synchronization between radio network controllers (RNC). One RNC in a network is collocated to form a service radio network controller (SRNC); a service center initiates a multimedia broadcasting service (MBMS), and a conservation beginning instruction is sent to a destination radio network controller (DRNC) and the SRNC in a service region corresponding to the MBMS; the DRNC and the SRNC set up Iur signaling connection and respectively receive MBMS data from the service center; the SRNC processes the received MBMS service data, calculates to obtain time synchronization information and sends to the DRNC through the set Iur signaling connection; and the DRNC processes the received MBMS data and performs synchronization with the SRNC according to the received time synchronization information. The synchronization between the RNCs can be realized and loading resources can be better saved by applying the method, the system and the equipment.
Description
Technical field
The present invention relates to mobile communication technology, synchronous method, system and equipment between particularly a kind of realization radio network controller (RNC, Radio Network Control).
Background technology
As a kind of emerging multimedia service, multi-media broadcasting service (MBMS, MultimediaBroadcast Multicast Service) caused the extensive concern of industry, regarded as the business that application prospect is arranged in the third generation digital communication (3G, 3rd Generation) very much by industry.The MBMS business is meant, mobile phone users receives the digital audio/video frequency content of the forms of broadcasting with the form of channel or channel on the portable terminal with operating system and video capability, as TV programme etc.
Current, for synchronous code division multiple access (TD-SCDMA of time-division, Time Division-SynchronousCode Division Multiple Access) MBMS business in the system such as, adopting multimedia broadcasting single frequency network (MBSFN, Multimedia Broadcast Single Frequency Network) under the condition of networking, belong between each minizone of a RNC, identical frequency, time slot, code channel can have been realized adopting preferably, the MBMS business datum that synchronized transmission is identical.
But, under a lot of situations, also need between the different RNC to carry out synchronously.Such as, for the portable terminal that is in two RNC coverage intersections, it can receive the signal from two RNC simultaneously, if but asynchronous between two RNC, like this, portable terminal receives time of two paths of signals will be inconsistent, one the tunnel is fast, one the road is slow, and that slow road signal is moved terminal possibly as the interference signal processing, thereby influence the normal reception of this road signal.
For addressing the above problem, a kind of MBMS Iur synchronization scenario has been proposed in the prior art, the specific implementation of this scheme comprises following two processes:
1) MBMS Iur data synchronization process:
Fig. 1 is existing MBMS Iur data synchronization process schematic diagram, this process realizes based on network architecture shown in Figure 2, for simplifying accompanying drawing, a target radio network controller (DRNC, Target Radio Network Control) and some important network entities have only been expressed among Fig. 2.As shown in Figure 1, may further comprise the steps:
Step 101: the RNC in the MBMS service area is configured to service wireless network controller (SRNC, Service Radio Network Control) and DRNC, and SRNC and DRNC are carried out identical physical channel, transmission channel and radio bearer (RB, Radio Bearer) dispose.
Here the service area of being mentioned is meant the professional corresponding coverage of a certain MBMS.Comprise in a certain service area which RNC is that operator can know in advance, so, in this step, operator can be according to self needs, each RNC in the service area is configured to SRNC and DRNC, promptly specifies a RNC as SRNC, other RNC is then as DRNC.Then, further SRNC and each DRNC that is disposed carried out identical physical channel, transmission channel and RB configuration.
Set up the Iur synchronous bearer between step 102:SRNC and each DRNC.
The process of setting up the Iur synchronous bearer in this step is towards disconnected process.As shown in Figure 3, Fig. 3 sets up the process schematic diagram for existing Iur synchronous bearer, wherein:
Step 1021:SRNC sets up request (Sync BearSetup Request) by Iur chain of command message MBMS synchronous bearer, initiates the Iur synchronous bearer and sets up process.
In this step, service center is initiated the MBMS business, and by the Iu interface between core net and the RNC, each RNC in service area comprises that SRNC and DRNC send session and begin (Session Start) signaling.After each RNC receives this Session Start signaling, respectively by setting up transmission channel between core net and the service center, to be used to receive the MBMS business datum that the follow-up business center sends; Simultaneously, SRNC initiates the Iur synchronous bearer and sets up process.
Because SRNC does not also know in self place service area which DRNC is arranged, that is to say, SRNC and do not know in the whole network which RNC with self belong to same service area.So, generally, SRNC can all send MBMS Sync Bear Setup Request message by all RNC in whole network, wherein carries Temporary Mobile Group Identity (TMGI, Temporary Mobile Group Identifier), i.e. information such as MBMS service identification.
Step 1022: the DRNC in the service area is to SRNC loopback MBMS Sync Bear Setup response (Response) message.
After each RNC in the network receives MBMS Sync Bear Setup Request message from SRNC, carry out different processing: the DRNC that is positioned at same service area for those and SRNC, owing to received Session Start instruction in advance, so, these DRNC will distribute local synchronous bearer resource, set up the Iur synchronous bearer, and to SRNC loopback MBMS Sync Bear Setup Response message; And for the RNC that those and SRNC are positioned at the different business zone, then the MBMS SyncBear Setup Request message that receives is not handled.
Step 103:SRNC handles the MBMS business datum that is received from core net, and the Iur synchronous bearer that passes through to be set up is sent to each DRNC.
In this step, service center sends the MBMS business datum by core net all RNC in service area, each DRNC does not handle the MBMS business datum that receives, and after SRNC receives the MBMS business datum, then need to carry out Iu interface user plane (IuUP, Iu User Plane), user plane (the GTP-U of general packet wireless service tunnel protocol, General Packet Radio ServiceTunneling Protocol-User Plane), PDCP (PDCP, Packet DataConvergence Protocol) and Radio Link control (RLC, Radio Link Control) waits the processing of each layer protocol, pass through the Iur synchronous bearer set up then, send Iur Frame Protocol (FP, Frame Protocol) frame to each DRNC.Carry in each Iur FP frame: a Transmission Time Interval (TTI, Transmission Time Interval) the rlc protocol data cell (PDU that sends in, Protocol DataUnit) number, RLC PDU data and the information such as timestamp of eating dishes without rice or wine to send the Connection Frame Number zero hour (CFN, Connect Frame Number) of indicating these RLC PDU data.
Step 104: the MBMS business datum after the processing that each DRNC will receive sends to the MAC layer at multi-media broadcasting service (MAC_m) entity in local each sub-district.
MAC_m entity in each sub-district determines that according to the timestamp information that carries in the Iur FP frame the initial CFN of TTI that sends the RLC PDU data of carrying in the IurFP frame also sends constantly.
The above-mentioned process that is existing MBMS Iur data sync.By said process, belong between the RNC in the service area and shared same Iu data flow, and shared entities such as same PDCP and RLC, thereby from having avoided each RNC to handle inconsistent that the MBMS business datum is caused respectively in essence.In logic, SRNC has regarded the sub-district of each DRNC as local sub-district, has realized that by the Iur interface RLC entity continues to the data flow of MAC_m entity.
Need to prove that in MBMS business datum transport process or after transmit finishing, among SRNC and the DRNC either party all can initiate MBMS Iur synchronous bearer dispose procedure, as shown in Figure 4, Fig. 4 is existing MBMS Iur synchronous bearer dispose procedure schematic diagram.RNC1/RNC2 among Fig. 4 can be respectively SRNC/DRNC or DRNC/SRNC.That is to say, after core net sends conversation end (Session Stop) message by Iu interface all RNC in service area, SRNC or DRNC all can send the MBMS synchronous bearer to the other side and discharge (Sync Bear Release) message, discharge the Iur synchronous bearer of being set up.But the MBMS Sync Bear Release message that SRNC sends is to set up the DRNC of carrying with it at all, and the MBMS Sync Bear Release message that DRNC sends is then just at the carrying of setting up between self and the SRNC.The RNC that receives MBMS Sync Bear Release message will discharge local synchronous bearer resource.Need to prove that DRNC also can be because other reason is initiated Iur synchronous bearer dispose procedure, such as, itself breaks down DRNC, can not carry out normal data processing etc., and specific implementation repeats no more.
2) MBMS Iur time synchronization process:
In this programme, SRNC need calculate the timestamp of eating dishes without rice or wine to send the CFN zero hour of each RLC PDU, and stab computing time, needs then to consider that data send to the propagation delay time of DRNC from SRNC.In this programme, can obtain propagation delay time by following dual mode:
A, configuration be the maximum transmitted time delay fixedly: such as, linkage length between SRNC and each DRNC is in advance as can be known, so, can estimate propagation delay time between SRNC and each DRNC according to linkage length, and with the maximum transmitted time delay that estimates as fixing maximum transmitted time delay.Afterwards, SRNC calculates the timestamp of each RLC PDU according to being somebody's turn to do fixedly maximum transmitted time delay.
B, obtain synchronously by RNC Iur node: it is synchronous that SRNC and each DRNC carry out node respectively, and obtaining the propagation delay time of each DRNC, and the maximum of getting wherein stab computing time.Such as, SRNC sends test post to each DRNC, calculates this test post and comes and goes required time, thereby obtain one way transmission required time, and this time is propagation delay time.
In summary it can be seen, though existing MBMS Iur synchronization scenario can realize between the different RNCs synchronously, but, in existing MBMS Iur synchronization scenario, each RNC in the service area needs to set up transmission channel by core net and service center, by the MBMS business datum of this transmission channel reception from service center, but, each DRNC can not handle the MBMS business datum that is received from service center, has only SRNC just the MBMS business datum that receives can be handled the back and sends to each DRNC by the Iur synchronous bearer.That is to say that the transmission channel of setting up between each DRNC and the service center all is useless from saying in fact, thereby caused the waste of these bearing resources.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of synchronous method that realizes between radio network controller, can save bearing resource preferably.
Another object of the present invention is to provide a kind of synchronous system that realizes between radio network controller, can save bearing resource preferably.
A further object of the present invention is to provide two kinds of radio network controller equipment, can save bearing resource preferably.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of synchronous method that realizes between radio network controller (RNC), this method comprises:
RNC in the network is configured to service wireless network controller SRNC;
Service center is initiated a multi-media broadcasting service MBMS, and target radio network controller DRNC and described SRNC in the professional corresponding service of described MBMS zone send session start instructions;
According to described session start instructions, described DRNC sets up the Iur signaling with described SRNC and is connected, and receives the MBMS business datum from described service center respectively;
Described SRNC handles the MBMS business datum that receives, and obtains time synchronization information, and sends to described DRNC by described Iur signaling connection;
Described DRNC handles the MBMS business datum that receives, and carries out synchronously according to described time synchronization information that receives and described SRNC.
A kind of synchronous system that realizes between radio network controller (RNC), this system comprises:
Service center is used to initiate a multi-media broadcasting service MBMS, and target radio network controller DRNC and service wireless network controller SRNC in the professional corresponding service of described MBMS zone send session start instructions and MBMS business datum;
Described DRNC, be used to receive session start instructions from described service center, request and foundation are connected with Iur signaling between the described SRNC, and reception is from the MBMS business datum of described service center, described MBMS business datum is handled, carried out synchronously according to time synchronization information that is received from described SRNC and described SRNC;
Described SRNC, be used to receive session start instructions from described service center, with set up the Iur signaling between the described DRNC and be connected, and reception is from the MBMS business datum of described service center, described MBMS business datum is handled, obtained time synchronization information and the Iur signaling passing through to be set up connects and sends to described DRNC.
A kind of radio network controller (RNC), described RNC is service wireless network controller SRNC, comprising:
Set up the unit, be used to receive session start instructions, be connected according to setting up the Iur signaling between the request of target radio network controller DRNC and the described DRNC from service center;
Lock unit is used to receive the multi-media broadcasting service MBMS business datum from described service center, and described MBMS business datum is handled, and obtains time synchronization information and the Iur signaling passing through to be set up connects and sends to described DRNC.
A kind of radio network controller (RNC), described RNC is target radio network controller DRNC, comprising:
Set up the unit, be used to receive the session start instructions from service center, request and foundation are connected with Iur signaling between the service wireless network controller SRNC;
Lock unit is used to receive the multi-media broadcasting service MBMS business datum from described service center, described MBMS business datum is handled, and carried out synchronously according to time synchronization information that is received from described SRNC and described SRNC.
In a word, adopt technical scheme of the present invention after, SRNC no longer sends to each DRNC after the MBMS business datum that is received from service center is handled, but only to each DRNC transmitting time synchronizing information; DRNC directly handles the MBMS business datum that is received from service center, and according to carrying out between time synchronization information that receives and the SRNC synchronously.Like this, only need set up the Iur signaling plane between SRNC and each DRNC and be connected and get final product, no longer need to set up the connection of Iur user's face, thereby neither waste the bearing resource between DRNC and the service center, can save the bearing resource between DRNC and the SRNC again.
Description of drawings
Fig. 1 is existing MBMS Iur data synchronization process schematic diagram.
Fig. 2 is the existing pairing network architecture schematic diagram of MBMS Iur data synchronization process.
Fig. 3 sets up the process schematic diagram for existing MBMS Iur synchronous bearer.
Fig. 4 is existing MBMS Iur synchronous bearer dispose procedure schematic diagram.
Fig. 5 realizes the flow chart of the synchronous method embodiment between RNC for the present invention.
Fig. 6 realizes the flow chart of the synchronous method preferred embodiment between RNC for the present invention.
Fig. 7 sets up the process schematic diagram that the Iur signaling is connected between DRNC among the inventive method embodiment and the SRNC.
Fig. 8 realizes the composition structural representation of the synchronous system embodiment between RNC for the present invention.
Fig. 9 is the composition structural representation of SRNC apparatus embodiments of the present invention.
Figure 10 is the composition structural representation of DRNC apparatus embodiments of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
In prior art, because DRNC can receive the two-way MBMS business datum from service center and SRNC respectively, but only can to wherein a road, the MBMS business datum that promptly is received from SRNC is handled, and the MBMS business datum that is received from service center is not handled, thereby the problem of the bearing resource of being set up between waste that causes and the service center, propose synchronous method: SRNC and DRNC between a kind of new realization RNC among the present invention and all receive MBMS business datum from service center, and carry out each layer processing according to the parameter that consults respectively, and, SRNC is responsible for the timestamp of eating dishes without rice or wine to send the CFN zero hour that each DRNC provides the MBMS business datum, like this, each RNC just can carry out the transmission of MBMS business datum on the same time point of appointment.
Fig. 5 realizes the flow chart of the synchronous method embodiment between RNC for the present invention.As shown in Figure 5, may further comprise the steps:
Step 501: the RNC in the network is configured to SRNC.
Step 502: service center is initiated a MBMS business, and DRNC in the professional corresponding service of this MBMS zone and SRNC transmission Session Start instruction.
Step 503:DRNC sets up the Iur signaling with SRNC and is connected, and receives the MBMS business datum from service center respectively.
Step 504:SRNC handles the MBMS business datum that receives, and obtains time synchronization information, and the Iur signaling connection of passing through to be set up sends to DRNC.
Step 505:DRNC handles the MBMS business datum that receives, and carries out synchronously according to time synchronization information that receives and SRNC.
As seen, in the solution of the present invention, SRNC no longer sends to each DRNC after the MBMS business datum that is received from service center is handled, but only to each DRNC transmitting time synchronizing information; DRNC directly handles the MBMS business datum that is received from service center, and according to carrying out between time synchronization information that receives and the SRNC synchronously.Like this, only need set up the Iur signaling plane between SRNC and each DRNC and be connected and get final product, and no longer need to set up the connection of Iur user's face, thereby neither waste the bearing resource between DRNC and the service center, can save the bearing resource between DRNC and the SRNC again.
Below by preferred embodiment, scheme of the present invention is described in further detail:
Fig. 6 realizes the flow chart of the synchronous method preferred embodiment between RNC for the present invention.As shown in Figure 6, may further comprise the steps:
Step 601: the RNC of configuration of operator is as SRNC.
Identical in the specific implementation of this step and the prior art.Such as, operator can pass through an operation interface, imports the address of a certain RNC, and specifying this RNC is SRNC.In actual applications, can be that whole network only disposes a SRNC, also can be to dispose different SRNC respectively at different MBMS business.
Step 602: service center is initiated a MBMS business, and each RNC in service area sends Session Start instruction by core net.
In this step, service center is initiated a MBMS business, as television program service, dispose at self in advance according to operator with this business corresponding service area information, all RNC in this service area comprise that SRNC and DRNC send Session Start instruction.
Step 603: each DRNC sends Iur to SRNC and sets up request synchronously, i.e. MBMS Sync SetupRequest message.
For the SRNC in the service area, after receiving Session Start instruction, do not carry out any processing.
For each DRNC in the service area, after receiving Session Start instruction, know and self belong to this service area, and know that according to the configuration in the step 601 which RNC is SRNC, send MBMS Sync Setup Request message to SRNC, set up the Iur signaling with SRNC and be connected, shown in the steps A among Fig. 7.
After step 604:SRNC receives MBMS Sync Setup Request message, information such as physical resource configuration information and rlc/mac layer parameter are carried at Iur set up response synchronously, be to send to each DRNC in the MBMS SyncSetup Response message, shown in the step B among Fig. 7.
Operator can carry out the configuration of unified physical resource in advance in SRNC, SRNC is carried at information such as physical resource configuration in the MBMS SyncSetup Response message and sends to each DRNC after receiving MBMS Sync Setup Request message.
Step 605: each DRNC carries out local physical resource configuration according to the information of carrying in the MBMS Sync Setup Response message that receives.
Step 606:SRNC receives the MBMS business datum that service center sends over by core net, carrying out IuUP and GTP-U layer protocol handles, obtain one group of GTP bag, calculate the timestamp of eating dishes without rice or wine to send the CFN zero hour of first corresponding segmentation of each GTP bag.
In this step, after SRNC receives the MBMS business datum, carry out IuUP and the processing of GTP-U layer protocol, obtain one group of GTP bag according to existing mode.If according to existing processing mode, subsequently, SRNC will further handle by PDCP and rlc layer agreement each GTP bag, obtain a series of segmentation, be RLC PDU, the corresponding timestamp of eating dishes without rice or wine to send the CFN zero hour of each segmentation, SRNC sends to each DRNC with the timestamp that these segmentations and corresponding eating dishes without rice or wine thereof send the CFN zero hour.But in the present embodiment, only establish the Iur signaling plane between SRNC and each DRNC and be connected, connect and do not set up user's face, so SRNC can not send the MBMS business datum to each DRNC.But, if SRNC can calculate after each GTP bag handles according to above-mentioned existing mode the timestamp of eating dishes without rice or wine to send the CFN zero hour of first segmentation correspondence that obtains.How to be calculated as known in this fieldly, to repeat no more.
The Iur signaling that step 607:SRNC passes through to be set up connects, and to each DRNC transmitting time synchronizing information, wherein carries the series number of each GTP bag and the corresponding respectively timestamp of eating dishes without rice or wine to send the CFN zero hour thereof.
Step 608: each DRNC receives the MBMS business datum that service center sends over by core net, and carries out each layer protocol of IuUP, GTP-U, PDCP and RLC according to physical resource configuration identical with SRNC and RAC/MAC layer parameter and handle.
Specifically, in this step, the MBMS business datum that receives is carried out IuUP to each DRNC and the GTP-U layer protocol is handled, and obtains one group of GTP bag, and each GTP bag is carried out PDCP and rlc layer protocol processes, obtains and the corresponding set of segmentation of each GTP bag.
Need to prove that this step and step 606 are carried out simultaneously, promptly SRNC and each DRNC are what to be received from the MBMS business datum of service center simultaneously.Just for ease of describing, just be divided into two steps and describe in the present embodiment.
Step 609: each DRNC is configured the MBMS business datum after handling according to the time synchronization information that receives, and carries out synchronously with SRNC.
In this step, each DRNC is configured the timestamp of eating dishes without rice or wine to send the CFN zero hour of first segmentation in the corresponding set of segmentation of each GTP bag of obtaining in the step 608, entrained timestamp in the time synchronization information that is configured to receive, this timestamp is the timestamp of eating dishes without rice or wine to send the CFN zero hour of GTP bag pairing first segmentation identical with described GTP bag series number.
The subsequent treatment mode of SRNC and each DRNC is a prior art, repeats no more.
Based on said method, Fig. 8 realizes the composition structural representation of the synchronous system embodiment between RNC for the present invention.As shown in Figure 8, this system comprises:
DRNC802, be used to receive Session Start instruction from service center 801, request and foundation are connected with Iur signaling between the SRNC803, and reception is from the MBMS business datum of service center 801, described MBMS business datum is handled, carried out synchronously according to time synchronization information that is received from SRNC803 and SRNC803;
SRNC803, be used to receive Session Start instruction from service center 801, with set up the Iur signaling between the DRNC802 and be connected, and reception is from the MBMS business datum of service center 801, described MBMS business datum is handled, obtained time synchronization information and the Iur signaling passing through to be set up connects and sends to DRNC802.
Wherein, the concrete composition structure of SRNC803 and DRNC802 respectively as shown in Figures 9 and 10.
Fig. 9 is the composition structural representation of SRNC apparatus embodiments of the present invention.As shown in Figure 9, comprising:
Set up unit 901, be used to receive Session Start instruction, be connected according to setting up the Iur signaling between the request of DRNC802 and the DRNC802 from service center 801;
Wherein, further comprise in the lock unit 902:
Send subelement 9022, the Iur signaling that is used for passing through to be set up connects to DRNC802 transmitting time synchronizing information; Carry the series number of each GTP bag and the timestamp of eating dishes without rice or wine to send the CFN zero hour of first corresponding segmentation respectively thereof in the described time synchronization information.
Figure 10 is the composition structural representation of DRNC apparatus embodiments of the present invention.As shown in figure 10, comprising:
Set up unit 1001, be used to receive the Session Start instruction from service center 801, request and foundation are connected with Iur signaling between the SRNC803;
Lock unit 1002 is used to receive the MBMS business datum from service center 801, described MBMS business datum is handled, and carried out synchronously according to time synchronization information that is received from SRNC803 and SRNC803.
Wherein, further comprise in the lock unit 1002:
Handle subelement 10021, be used to receive MBMS business datum from service center 801, described MBMS business datum is carried out IuUP and the processing of GTP-U layer protocol, obtain one group of GTP bag, and each GTP bag carried out PDCP and rlc layer protocol processes, obtain and the corresponding set of segmentation of each GTP bag;
Configuration subelement 10022, be used for the timestamp of eating dishes without rice or wine to send the CFN zero hour of corresponding first segmentation of set of segmentation of each GTP bag of obtaining is configured, the entrained GTP identical with series number described GTP wraps the timestamp of eating dishes without rice or wine to send the CFN zero hour of pairing first segmentation in the time synchronization information that is configured to receive, and carries out synchronously with SRNC803.
The concrete workflow of system and apparatus embodiments please refer to the related description among Fig. 5 and the method embodiment shown in Figure 6 shown in Fig. 8,9 and 10, repeats no more herein.
In a word, adopt technical scheme of the present invention after, SRNC no longer sends to each DRNC after the MBMS business datum that is received from service center is handled, but only to each DRNC transmitting time synchronizing information; And DRNC directly handles the MBMS business datum that is received from service center, and according to carrying out between time synchronization information that receives and the SRNC synchronously.Like this, only need set up the Iur signaling plane between SRNC and each DRNC and be connected and get final product, and no longer need to set up the connection of Iur user's face, thereby neither waste the bearing resource between DRNC and the service center, can save the bearing resource between DRNC and the SRNC again.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of synchronous method that realizes between radio network controller (RNC) is characterized in that this method comprises:
RNC in the network is configured to service wireless network controller SRNC;
Service center is initiated a multi-media broadcasting service MBMS, and target radio network controller DRNC and described SRNC in the professional corresponding service of described MBMS zone send session start instructions;
According to described session start instructions, described DRNC sets up the Iur signaling with described SRNC and is connected, and receives the MBMS business datum from described service center respectively;
Described SRNC handles the MBMS business datum that receives, and obtains time synchronization information, and sends to described DRNC by described Iur signaling connection;
Described DRNC handles the MBMS business datum that receives, and carries out synchronously according to described time synchronization information that receives and described SRNC.
2, method according to claim 1 is characterized in that, described DRNC and described SRNC set up the Iur signaling and be connected and comprise:
Described DRNC sends Iur to described SRNC and sets up request synchronously, wherein carries physical resource configuration information and Radio Link control RLC/ media interviews control MAC layer parameter information;
Described SRNC sets up physical resource configuration information and the rlc/mac layer parameter information that carries in the request synchronously according to described Iur, disposes local physical resource, and sets up response synchronously to described DRNC loopback Iur.
3, method according to claim 1 and 2 is characterized in that, described SRNC handles the MBMS business datum that receives and comprises:
Described SRNC handles the user plane GTP-U layer protocol that the MBMS business datum that receives is carried out Iu interface user plane IuUP and general packet wireless service tunnel protocol, obtains one group of GTP bag;
Described SRNC calculates the timestamp of eating dishes without rice or wine to send the Connection Frame Number CFN zero hour of first corresponding segmentation of each GTP bag respectively.
4, method according to claim 3 is characterized in that, described time synchronization information comprises: the series number of each GTP bag and the timestamp of eating dishes without rice or wine to send the CFN zero hour of first corresponding segmentation respectively thereof.
5, method according to claim 4 is characterized in that, described DRNC handles the MBMS business datum that receives, and comprises synchronously according to described time synchronization information that receives and described SRNC:
The MBMS business datum that receives is carried out IuUP to described DRNC and the GTP-U layer protocol is handled, and obtains one group of GTP bag, and each GTP bag is carried out PDCP PDCP and rlc layer protocol processes, obtains and the corresponding set of segmentation of each GTP bag;
The timestamp of eating dishes without rice or wine to send the CFN zero hour to first segmentation in the corresponding set of segmentation of described each GTP bag that obtains is configured, and is configured to the timestamp of eating dishes without rice or wine to send the CFN zero hour of GTP bag pairing first segmentation identical with described GTP bag series number entrained in the described time synchronization information that receives.
6, a kind of synchronous system that realizes between radio network controller (RNC) is characterized in that this system comprises:
Service center is used to initiate a multi-media broadcasting service MBMS, and target radio network controller DRNC and service wireless network controller SRNC in the professional corresponding service of described MBMS zone send session start instructions and MBMS business datum;
Described DRNC, be used to receive session start instructions from described service center, request and foundation are connected with Iur signaling between the described SRNC, and reception is from the MBMS business datum of described service center, described MBMS business datum is handled, carried out synchronously according to time synchronization information that is received from described SRNC and described SRNC;
Described SRNC, be used to receive session start instructions from described service center, with set up the Iur signaling between the described DRNC and be connected, and reception is from the MBMS business datum of described service center, described MBMS business datum is handled, obtained time synchronization information and the Iur signaling passing through to be set up connects and sends to described DRNC.
7, a kind of radio network controller (RNC), described RNC is service wireless network controller SRNC, it is characterized in that, comprising:
Set up the unit, be used to receive session start instructions, be connected according to setting up the Iur signaling between the request of target radio network controller DRNC and the described DRNC from service center;
Lock unit is used to receive the multi-media broadcasting service MBMS business datum from described service center, and described MBMS business datum is handled, and obtains time synchronization information and the Iur signaling passing through to be set up connects and sends to described DRNC.
8, SRNC according to claim 7 is characterized in that, further comprises in the described lock unit:
Handle subelement, be used to receive MBMS business datum from described service center, described MBMS business datum being carried out the user plane GTP-U layer protocol of Iu interface user plane IuUP and general packet wireless service tunnel protocol handles, obtain one group of GTP bag, and calculate the timestamp of eating dishes without rice or wine to send the CFN zero hour of first corresponding segmentation of each GTP bag respectively;
Send subelement, the Iur signaling that is used for passing through to be set up connects to described DRNC transmitting time synchronizing information; Carry the series number of each GTP bag and the timestamp of eating dishes without rice or wine to send the CFN zero hour of first corresponding segmentation respectively thereof in the described time synchronization information.
9, a kind of radio network controller (RNC), described RNC is target radio network controller DRNC, it is characterized in that, comprising:
Set up the unit, be used to receive the session start instructions from service center, request and foundation are connected with Iur signaling between the service wireless network controller SRNC;
Lock unit is used to receive the multi-media broadcasting service MBMS business datum from described service center, described MBMS business datum is handled, and carried out synchronously according to time synchronization information that is received from described SRNC and described SRNC.
10, DRNC according to claim 9 is characterized in that, further comprises in the described lock unit:
Handle subelement, be used to receive MBMS business datum from described service center, described MBMS business datum being carried out the user plane GTP-U layer protocol of Iu interface user plane IuUP and general packet wireless service tunnel protocol handles, obtain one group of GTP bag, and each GTP bag carried out PDCP PDCP and rlc layer protocol processes, obtain and the corresponding set of segmentation of each GTP bag;
The configuration subelement, be used for the timestamp of eating dishes without rice or wine to send the CFN zero hour of corresponding first segmentation of set of segmentation of described each GTP bag that obtains is configured, be configured to the timestamp of eating dishes without rice or wine to send the CFN zero hour of GTP bag pairing first segmentation identical entrained in the described time synchronization information that receives, carry out synchronously with described SRNC with described GTP bag series number.
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| CN101043641B (en) * | 2007-03-07 | 2011-11-30 | 中兴通讯股份有限公司 | Inter-RNC MBMS data synchronization method and system |
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| CN109587782A (en) * | 2017-09-28 | 2019-04-05 | 中兴通讯股份有限公司 | A kind of synchronous method and device |
| US11382052B2 (en) * | 2017-09-28 | 2022-07-05 | Zte Corporation | Synchronization method and apparatus, network element, and storage medium |
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