CN101583081A - Method, system and device for establishing synchronous bearing - Google Patents
Method, system and device for establishing synchronous bearing Download PDFInfo
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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
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to the Mobile Multimedia Broadcasting 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 the 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 in 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 to 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 send 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 is so the physical frame between the whole network can be realized synchronously by GPS synchronously.For resource distribution synchronously and data send synchronously, then need to introduce new scheme and realized.Resource distribution need realize identical MBMS business is distributed identical various bearing resources at different RNC synchronously, as shown in Figure 1, schematic diagram for the physical layer resources configuration synchronization, described physical layer resources, comprise frequency resource, time slot, code channel, simultaneously the coded system that sends data and modulation system are also required identically, in addition, comprise that also the relevant configuration of two layer three on layer also wants consistent.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, by synchronous between Iur interface one step realization RNC, as shown in Figure 2, for realize the synchronous schematic diagram between RNC by 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 the 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, the medium access control) parameter, send this professional information such as cell ID, by 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, by synchronous between Iur interface two steps realization RNC, as shown in Figure 3, for realize the synchronous schematic diagram between RNC by two steps of Iur interface.As shown in the figure, at first, DRNC initiates request to SRNC and sets up message synchronously; 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, by OM (Operations and Maintenance, operation and maintenance) entity Resources allocation, the OM entity gives different RNC at 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 schematic diagram for MBMS realizes broadcast multimedia business under a plurality of RNC mainly may further comprise the steps under the mode synchronous between RNC:
1) operator disposes certain RNC as SRNC, and with respect to this SRNC, other RNC is called DRNC; And with this SRNC of service area information configuration of each MBMS business, 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 by core net, SRNC sets up transmission channel by 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, determines 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 by 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), decision sends the initial CFN moment of TTI of these RLC PDU.
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 by 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 transmission of MBMS business.
In the such scheme 3, by OM entity Resources allocation, the OM entity need be had gained some understanding to the traffic carrying capacity and the zero-time of MBMS business, could be at 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 to be solved in the present invention is to propose the mthods, systems and devices that a kind of synchronous bearer is set up, when the solution prior art sends 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; Described SRNC sets up response message according to the described request message of setting up synchronously synchronously to described DRNC transmission, and the described response message of setting up synchronously carries the resource distribution synchronizing information; Described SRNC receives the delay request message that described DRNC sends, and described delay request message carries the deferred message of described DRNC, and described deferred message is determined according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC by described DRNC; Described SRNC determines the moment of the MBMS of interface transmission aloft business according to described deferred message.
As the embodiment of said method, described 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, described physical layer resources configuration information comprises carrier information, gap information and code channel information.
As the embodiment of said method, determine described deferred message for determining Td time of delay, may further comprise the steps: described DRNC judges whether the resource of indicating in the described resource distribution synchronizing information has been used by described DRNC; If the resource of described indication is not used by described DRNC, Td value time of delay of then described deferred message indication is 0; If the resource of described indication is used by described DRNC, then calculate to discharge the time T w that the resource of described indication need be waited for, and be Tw Td value time of delay of described deferred message indication.
In the above-described embodiments, after the time T w that the described resource of described definite release indication need be waited for, further comprising the steps of: when the time of delay of described deferred message indication Td greater than default maximum delay Tm, judge further then whether the business of the resource that takies described indication is single Zone; If described business is single Zone, then described DRNC sends described service dispatching on other resources, perhaps described business is kept in the buffer area to suspend to send, and is 0 with the Td value, represents that the resource of described indication is released; If described business is not single Zone, be To then with the Td value, represent that the resource of described indication can't discharge.
In the above-described embodiments, also comprise: Td time of delay to described deferred message uses bit information to encode.
In the above-described embodiments, comprise using bit information to encode the time of delay of described deferred message: use 3 bits to encode the time of delay to described deferred message indication, be To 000 state representation time of delay, be 0 111 state representation time of delays, and all the other six states are represented the different values of Td respectively.
In the above-described embodiments, described SRNC may further comprise the steps according to the moment that the definite interface aloft of described deferred message sends the MBMS business: described SRNC receives the described deferred message that all described DRNC send, if time of delay, Td was not equal to To, then write down described Td value; Described SRNC selects Td time of delay of the maximum that described DRNC reports to be designated as Tn; The moment of the MBMS of interface transmission aloft business is at least current time and delays Tn.
In the above-described embodiments, described definite interface aloft sends the moment of MBMS business by described SRNC configuration Connection Frame Number CFN realization, may further comprise the steps: described SRNC receives the described deferred message that all described DRNC send, if time of delay, Td was not equal to To, then writes down described Td value; Described SRNC selects Td time of delay of the maximum that described DRNC reports to be designated as Tn; Described SRNC is according to Tn, calculates the corresponding CFN frame number that sends multimedia broadcast multi-broadcasting business MBMS, the MBMS business 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; Described DRNC receives that described SRNC sends sets up response message synchronously, and the described response message of setting up synchronously carries the resource distribution synchronizing information; Described DRNC determines deferred message according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC, and sends to described SRNC by postponing request message, described SRNC determines the moment of the MBMS of interface transmission aloft business according to described deferred message.
As the embodiment of said method, determine described deferred message for determining Td time of delay, further comprising the steps of: described DRNC judges whether the resource of indicating in the described resource distribution synchronizing information has been used by described DRNC; If the resource of described indication is not used by described DRNC, Td value time of delay of then described deferred message indication is 0; If the resource of described indication is used by described DRNC, then calculate to discharge the time T w that the resource of described indication need be waited for, and be Tw Td value time of delay of described deferred message indication.
In the above-described embodiments, after the time T w that the described resource of described definite release indication need be waited for, further comprising the steps of: when the time of delay of described deferred message indication Td greater than default maximum delay Tm, judge further then whether the business of the resource that takies described indication is single Zone; If described business is single Zone, then described DRNC sends described service dispatching on other resources, perhaps described business is kept in the buffer area to suspend to send, and is 0 with the Td value, represents that the resource of described indication is released; If described business is not single Zone, be To then with the Td value, represent that the resource of described indication can't discharge.
In the above-described embodiments, also comprise: Td time of delay to described deferred message uses bit information to encode.
In the above-described embodiments, comprise using bit information to encode the time of delay of described deferred message: use 3 bits to encode the time of delay to described deferred message indication, be To 000 state representation time of delay, be 0 111 state 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, described SRNC, be used to receive that described DRNC sends sets up request message synchronously, and the resource distribution synchronizing information is sent to described DRNC by setting up response message synchronously, and the delay request message that receives the deferred message that carries described DRNC that described DRNC sends, and determine that according to described deferred message interface aloft sends the moment of MBMS business; Described DRNC, be used for setting up request message synchronously to described SRNC transmission, and obtain the resource distribution synchronizing information according to the response message of setting up synchronously that described SRNC returns, and determine deferred message, and send to described SRNC by postponing request message according to the operating position of described 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, described receiver module, be used to receive that DRNC sends sets up request message synchronously, and the delay request message that receives described DRNC transmission, described delay request message carries the deferred message of described DRNC, and described deferred message is determined according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC by described DRNC; Described sending module is used for setting up response message according to the described request message of setting up synchronously synchronously to described DRNC transmission, and the described response message of setting up synchronously carries the resource distribution synchronizing information; Described initial moment determination module is used for the moment according to the definite transmission of interface aloft of described deferred message MBMS business.
As the embodiment of said apparatus, the resource distribution synchronizing information that described sending module sends, described resource distribution synchronizing information comprises physical layer resources configuration information, PDCP parameter, RLC parameter, MAC parameter.
As the embodiment of said apparatus, described initial moment determination module is a MBMS business configuration corresponding C FN frame number, sends the MBMS business by 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 described receiver module is used to receive that SRNC sends sets up response message synchronously, and the described response message of setting up synchronously carries the resource distribution synchronizing information; Described sending module, be used for setting up request message synchronously to the SRNC transmission, and by postponing request message to described SRNC transmission lag information, described deferred message determines that according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC described SRNC determines the moment of the MBMS of interface transmission aloft business according to described deferred message; Described computing module is used for determining deferred message according to the operating position that receives described resource distribution synchronizing information and current resource, and described deferred message sends to described SRNC by postponing request message.
Embodiment as said apparatus, the described resource distribution synchronizing information that described computing module obtains according to receiver module, the its other resources operating position is inquired about, calculate Td time of delay in the described deferred message, if the resource of described indication is not used by described DRNC, then described computing module is 0 with the Td value; If the resource of described indication is used by described DRNC, then computing module calculate to discharge the time T w that the resource of described indication need be waited for, and is Tw with Td value time of delay of described deferred message indication.
Embodiment as said apparatus, the time of delay that described sending module obtains according to computing module, send to described SRNC after will encoding with 3 bit informations time of delay, the described DRNC of 000 state representation can't discharge resource, be 0 111 state 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, described receiver module, be used to receive setting up request message synchronously and postponing request message of coupled DRNC transmission, described delay request message carries the deferred message of described DRNC, and receive that coupled SRNC sends set up response message synchronously, the described response message of setting up synchronously carries the resource distribution synchronizing information; Described sending module, be used for setting up response message synchronously to coupled DRNC transmission according to the described request message of setting up synchronously, the described response message of setting up synchronously carries the resource distribution synchronizing information, and sets up request message synchronously to coupled SRNC transmission; Described computing module, the described resource distribution synchronizing information that the described SRNC that is used for receiving according to described receiver module sends is determined deferred message with the operating position of current resource, described deferred message sends to described SRNC by the delay request message; Described initial moment determination module, deferred message is determined the moment of the MBMS of interface transmission aloft business described in the delay request message that is used for sending according to the described DRNC that described receiver module receives.
Technical scheme of the present invention has the following advantages, and the present invention allows SRNC fully understand the current resource operating position of DRNC by 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 schematic diagram of physical layer resources configuration synchronization;
Fig. 2 is for realizing the synchronous schematic diagram between RNC by one step of Iur interface;
Fig. 3 is for realizing the synchronous schematic diagram between RNC by two steps of Iur interface;
Fig. 4 is MBMS realizes broadcast multimedia business under a plurality of RNC a schematic diagram;
Fig. 5 is for realizing the synchronous schematic diagram between RNC by 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 drawings and Examples, the specific embodiment of the present invention is described in further detail:
The present invention mainly utilizes the MBMS business characteristics not too responsive to time delay, proposition is by carrying out three step alternant way between SRNC and the DRNC, allow SRNC fully understand the current resource operating position of DRNC, make SRNC more reasonable with respect to traditional mode in resource allocation.
As shown in Figure 5, the Iur interface three that passes through that proposes for the present invention goes on foot the synchronous schematic diagram of realizing between RNC, it is mutual that the present invention proposed to carry out between SRNC and the DRNC three steps, report current resource operating position by 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,, determine to send the required resource information occupied of this business according to the MBMS business that will send.Because the MBMS service needed sends 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, and could guarantee that like this same MBMS business that sends 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 improvements and modifications, these improvements and modifications also should be considered 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 by MBMS, and the resource distribution synchronizing information of MBMS business is sent 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 determines 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 described 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 sends 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 send 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 in the MBMS business under a plurality of RNC, understand the current resource operating position of other RNC, 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 by determining 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 described 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 described indication need be waited for, and is Tw with Td value time of delay of deferred message indication.
If there is the qualification of delay in system to the transmission of this MBMS business, for example, the maximum delay that default 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 characteristic, the system requirements of this MBMS business.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 described resource is the uni-cell MBMS business, if using the business of this resource to be the uni-cell MBMS business, 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 this business transmission, be 0 with the Td value simultaneously, represent that the resource of described indication discharges, be 0 time of delay.If taking the business of this resource is a plurality of cell MBMS business, DRNC is not suitable for interrupting the transmission of this business, is To with the Td value then, represents that the resource of described indication can't discharge in official hour.Obviously; based on those skilled in the art's general knowledge, DRNC also can judge selection according to priority or other standards of MBMS business, and various adjustment are made in the adjustment of resource; thereby determine the occurrence of time of delay in the deferred message, described 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 described deferred message.Preferably, DRNC is to using 3 bit informations to encode the time of delay of deferred message indication.For example, with 000 state representation time of delay be To, be 0 111 state 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 described resource distribution synchronizing information as long as reach SRNC by other modes.Based on those skilled in the art's general knowledge, to the form that the coded system of described deferred message is not limited to give an example among the embodiment, can make various adjustment to the coded system of deferred message, described variation should be protection range of the present invention and contains.
S300:DRNC sends MBMS to SRNC and postpones request message.In order to allow SRNC understand the resource operating position of DRNC, the MBMS chain of command entity of DRNC postpones request message by MBMS, and deferred message is sent to SRNC.
S310:SRNC determines the moment of the MBMS of interface transmission aloft business according to deferred message.SRNC may receive the deferred message of a plurality of DRNC feedbacks, and preferably, SRNC determines that the moment of the MBMS of interface transmission aloft business 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, determines wherein to have the Td value of maximum delay, is designated as Tn; The moment of SRNC interface transmission aloft MBMS business is at least current time and delays Tn.Obviously, said method is to guarantee to make DRNC as much as possible can send a kind of mode of MBMS business 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, determines the moment of the MBMS of interface transmission aloft business.
Preferably, SRNC determines that interface sends the MBMS chain of command physical arrangements CFN frame number realization of the moment of MBMS business by 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 by 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, therefore the radio frames that 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 determined also can make described 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 by setting up response message synchronously, and the delay request message that receives the deferred message that carries DRNC200 that DRNC200 sends, and determine that according to deferred message interface aloft sends the moment of MBMS business.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 determine deferred message, and send to SRNC100 by 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 determined 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 determining according to deferred message the moment of the MBMS of interface transmission aloft business.
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 described 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 defined as making that with initial moment of synchronous bearer described DRNC as much as possible can send the moment of MBMS business 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 by 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 by postponing request message to SRNC100 transmission lag information, deferred message determines that according to the operating position of resource distribution synchronizing information and current resource SRNC100 determines the moment of the MBMS of interface transmission aloft business according to described deferred message.Computing module 130 is used for determining deferred message according to the operating position that receives described resource distribution synchronizing information and current resource that deferred message sends to SRNC100 by postponing request message.
As preferred version of the present invention, the described resource distribution synchronizing information that computing module 130 obtains according to receiver module 110, the its other resources operating position is inquired about, calculate Td time of delay in the described deferred message, if the resource of described indication is not used by DRNC200, then described computing module 130 is 0 with the Td value; If the resource of described 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 state representation DRNC200 can't discharge resource, be 0 111 state 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 determined deferred message, and deferred message sends to SRNC by sending module 320 by 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 is determined the moment of the MBMS of interface transmission aloft business.
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 improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (22)
1, a kind of method of synchronous bearer foundation 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;
Described SRNC sets up response message according to the described request message of setting up synchronously synchronously to described DRNC transmission, and the described response message of setting up synchronously carries the resource distribution synchronizing information;
Described SRNC receives the delay request message that described DRNC sends, and described delay request message carries the deferred message of described DRNC, and described deferred message is determined according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC by described DRNC;
Described SRNC determines the moment of the multimedia broadcast multi-broadcasting business of interface transmission aloft MBMS according to described deferred message.
2, the method for synchronous bearer foundation as claimed in claim 1, it is characterized in that described 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 for synchronous bearer foundation as claimed in claim 2 is characterized in that described physical layer resources configuration information comprises carrier information, gap information and code channel information.
4, the method for synchronous bearer foundation as claimed in claim 1 is characterized in that, determines that described deferred message for determining Td time of delay, may further comprise the steps:
Described DRNC judges whether the resource of indicating in the described resource distribution synchronizing information is used by described DRNC;
If the resource of described indication is not used by described DRNC, Td value time of delay of then described deferred message indication is 0;
If the resource of described indication is used by described DRNC, then calculate to discharge the time T w that the resource of described indication need be waited for, and be Tw Td value time of delay of described deferred message indication.
5, the method for synchronous bearer foundation as claimed in claim 4 is characterized in that, and is after the time T w that the described resource of described definite release indication need be waited for, further comprising the steps of:
When the time of delay of described deferred message indication Td greater than default maximum delay Tm, judge further then whether the business of the resource that takies described indication is single Zone;
If described business is single Zone, then described DRNC sends described service dispatching on other resources, perhaps described business is kept in the buffer area to suspend to send, and is 0 with the Td value, represents that the resource of described indication is released;
If described business is not single Zone, be To then with the Td value, represent that the resource of described indication can't discharge.
6, the method for synchronous bearer foundation as claimed in claim 5 is characterized in that, also comprises: Td time of delay to described deferred message uses bit information to encode.
7, the method for synchronous bearer foundation as claimed in claim 6 is characterized in that, comprises using bit information to encode the time of delay of described deferred message:
Use 3 bits to encode the time of delay to the indication of described deferred message, and be To 000 state representation time of delay, and be 0 111 state representation time of delays, and all the other six states are represented the different values of Td respectively.
8, the method for synchronous bearer foundation as claimed in claim 5 is characterized in that, described SRNC may further comprise the steps according to the moment that the definite interface aloft of described deferred message sends the MBMS business:
Described SRNC receives the described deferred message that all described DRNC send, if time of delay, Td was not equal to To, then writes down described Td value;
Described SRNC selects Td time of delay of the maximum that described DRNC reports to be designated as Tn;
The moment of the MBMS of interface transmission aloft business is at least current time and delays Tn.
9, the method for synchronous bearer foundation as claimed in claim 5 is characterized in that, the described moment of determining the MBMS of interface transmission aloft business may further comprise the steps by described SRNC configuration Connection Frame Number CFN realization:
Described SRNC receives the described deferred message that all described DRNC send, if time of delay, Td was not equal to To, then writes down described Td value;
Described SRNC selects Td time of delay of the maximum that described DRNC reports to be designated as Tn;
Described SRNC is according to Tn, calculates the corresponding CFN frame number that sends the MBMS business, the MBMS business delayed the Tn time at current time send.
10, a kind of method of synchronous bearer foundation is characterized in that, may further comprise the steps:
DRNC sends to SRNC and sets up request message synchronously;
Described DRNC receives that described SRNC sends sets up response message synchronously, and the described response message of setting up synchronously carries the resource distribution synchronizing information;
Described DRNC determines deferred message according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC, and sends to described SRNC by postponing request message, described SRNC determines the moment of the MBMS of interface transmission aloft business according to described deferred message.
11, the method for synchronous bearer foundation as claimed in claim 10 is characterized in that, determines that described deferred message is to determine Td time of delay, and is further comprising the steps of:
Described DRNC judges whether the resource of indicating in the described resource distribution synchronizing information is used by described DRNC;
If the resource of described indication is not used by described DRNC, Td value time of delay of then described deferred message indication is 0;
If the resource of described indication is used by described DRNC, then calculate to discharge the time T w that the resource of described indication need be waited for, and be Tw Td value time of delay of described deferred message indication.
12, the method for synchronous bearer foundation as claimed in claim 11 is characterized in that, and is after the time T w that the described resource of described definite release indication need be waited for, further comprising the steps of:
When the time of delay of described deferred message indication Td greater than default maximum delay Tm, judge further then whether the business of the resource that takies described indication is single Zone;
If described business is single Zone, then described DRNC sends described service dispatching on other resources, perhaps described business is kept in the buffer area to suspend to send, and is 0 with the Td value, represents that the resource of described indication is released;
If described business is not single Zone, be To then with the Td value, represent that the resource of described indication can't discharge.
13, the method for synchronous bearer foundation as claimed in claim 12 is characterized in that, also comprises: Td time of delay to described deferred message uses bit information to encode.
14, the method for synchronous bearer foundation as claimed in claim 13 is characterized in that, comprises using bit information to encode the time of delay of described deferred message:
Use 3 bits to encode the time of delay to the indication of described deferred message, and be To 000 state representation time of delay, and be 0 111 state representation time of delays, and all the other six states are represented the different values of Td respectively.
15, a kind of system of synchronous bearer foundation is characterized in that, comprises SRNC and at least one DRNC,
Described SRNC, be used to receive that described DRNC sends sets up request message synchronously, and the resource distribution synchronizing information is sent to described DRNC by setting up response message synchronously, and the delay request message that receives the deferred message that carries described DRNC that described DRNC sends, and determine that according to described deferred message interface aloft sends the moment of MBMS business;
Described DRNC, be used for setting up request message synchronously to described SRNC transmission, and obtain the resource distribution synchronizing information according to the response message of setting up synchronously that described SRNC returns, and determine deferred message, and send to described SRNC by postponing request message according to the operating position of described resource distribution synchronizing information and current resource.
16, a kind of SRNC is characterized in that, comprises receiver module, sending module and initial moment determination module,
Described receiver module, be used to receive that DRNC sends sets up request message synchronously, and the delay request message that receives described DRNC transmission, described delay request message carries the deferred message of described DRNC, and described deferred message is determined according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC by described DRNC;
Described sending module is used for setting up response message according to the described request message of setting up synchronously synchronously to described DRNC transmission, and the described response message of setting up synchronously carries the resource distribution synchronizing information;
Described initial moment determination module is used for the moment according to the definite transmission of interface aloft of described deferred message MBMS business.
17, SRNC as claimed in claim 16 is characterized in that, the resource distribution synchronizing information that described sending module sends, and described resource distribution synchronizing information comprises physical layer resources configuration information, PDCP parameter, RLC parameter, MAC parameter.
18, SRNC as claimed in claim 17 is characterized in that, described initial moment determination module is a MBMS business configuration corresponding C FN frame number, sends the MBMS business by the CFN frame number simultaneously by each DRNC.
19, a kind of DRNC is characterized in that, comprises receiver module, sending module and computing module,
Described receiver module is used to receive that SRNC sends sets up response message synchronously, and the described response message of setting up synchronously carries the resource distribution synchronizing information;
Described sending module, be used for setting up request message synchronously to the SRNC transmission, and by postponing request message to described SRNC transmission lag information, described deferred message determines that according to the operating position of described resource distribution synchronizing information and the current resource of described DRNC described SRNC determines the moment of the MBMS of interface transmission aloft business according to described deferred message;
Described computing module is used for determining deferred message according to the operating position that receives described resource distribution synchronizing information and current resource, and described deferred message sends to described SRNC by postponing request message.
20, DRNC as claimed in claim 19, it is characterized in that, the described resource distribution synchronizing information that described computing module obtains according to receiver module, the its other resources operating position is inquired about, calculate Td time of delay in the described deferred message, if the resource of described indication is not used by described DRNC, then described computing module is 0 with the Td value; If the resource of described indication is used by described DRNC, then computing module calculate to discharge the time T w that the resource of described indication need be waited for, and is Tw with Td value time of delay of described deferred message indication.
21, DRNC as claimed in claim 20, it is characterized in that, the time of delay that described sending module obtains according to computing module, send to described SRNC after will encoding with 3 bit informations time of delay, the described DRNC of 000 state representation can't discharge resource, be 0 111 state representation time of delays, and all the other six states are represented the different values of time of delay respectively.
22, a kind of RNC is characterized in that, comprises receiver module, sending module, computing module and initial moment determination module,
Described receiver module, be used to receive setting up request message synchronously and postponing request message of coupled DRNC transmission, described delay request message carries the deferred message of described DRNC, and receive that coupled SRNC sends set up response message synchronously, the described response message of setting up synchronously carries the resource distribution synchronizing information;
Described sending module, be used for setting up response message synchronously to coupled DRNC transmission according to the described request message of setting up synchronously, the described response message of setting up synchronously carries the resource distribution synchronizing information, and sets up request message synchronously to coupled SRNC transmission;
Described computing module, the described resource distribution synchronizing information that the described SRNC that is used for receiving according to described receiver module sends is determined deferred message with the operating position of current resource, described deferred message sends to described SRNC by the delay request message;
Described initial moment determination module, deferred message is determined the moment of the MBMS of interface transmission aloft business described in the delay request message that is used for sending according to the described DRNC that described receiver module receives.
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| WO2019071589A1 (en) * | 2017-10-13 | 2019-04-18 | 华为技术有限公司 | Transmission method, terminal device and network device |
| CN110798809A (en) * | 2018-08-02 | 2020-02-14 | 成都鼎桥通信技术有限公司 | Time delay estimation method and device |
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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 |
| CN101039175B (en) * | 2007-03-27 | 2011-08-24 | 中兴通讯股份有限公司 | Method and system for synchronizing RLC in wireless network controllers |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019071589A1 (en) * | 2017-10-13 | 2019-04-18 | 华为技术有限公司 | Transmission method, terminal device and network device |
| CN111194542A (en) * | 2017-10-13 | 2020-05-22 | 华为技术有限公司 | Transmission method, terminal equipment and network equipment |
| CN111194542B (en) * | 2017-10-13 | 2021-08-20 | 华为技术有限公司 | Transmission method, terminal equipment and network equipment |
| US11510158B2 (en) | 2017-10-13 | 2022-11-22 | Huawei Technologies Co., Ltd. | Transmission method, terminal device, and network device |
| CN110798809A (en) * | 2018-08-02 | 2020-02-14 | 成都鼎桥通信技术有限公司 | Time delay estimation method and device |
| CN110798809B (en) * | 2018-08-02 | 2021-07-23 | 成都鼎桥通信技术有限公司 | Time delay estimation method and device |
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