CN104853388A - Method for generating group data packet serial number in cluster communication system and base station - Google Patents
Method for generating group data packet serial number in cluster communication system and base station Download PDFInfo
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- CN104853388A CN104853388A CN201510153683.9A CN201510153683A CN104853388A CN 104853388 A CN104853388 A CN 104853388A CN 201510153683 A CN201510153683 A CN 201510153683A CN 104853388 A CN104853388 A CN 104853388A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/165—Performing reselection for specific purposes for reducing network power consumption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/04—Scheduled or contention-free access
Abstract
An embodiment of the invention discloses a method and system for generating a group data packet serial number in a cluster communication system. The method includes: using an SN number of RTP data received by a base station as a basis, and generating a unique SN serial number of a HFN of a data packet on this basis. That the HFN and the SN serial number of cluster data in a whole network are identical is realized. A process of readapting to an HFN and an SN of a target cell cluster service data packet due to a change of a monitored cell is avoided when a monitoring terminal performs cell switching in the network, that data surface delay of the monitoring terminal in the process is avoided is guaranteed, and user experience is improved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to HFN(Hyper Frame Number in a kind of trunked communication system) and SN(Sequence Number) generation method and base station.
Background technology
Long Term Evolution (Long Term Evolution, LTE) technology is for trunking communication, and the maximum feature realizing the LTE network of cluster is the group user of group service, and the call mechanism of cluster.
Cluster conversation mechanism is speaker user take dispatcher as conversation object, and the speech data of speaker user is mail to dispatching desk by base station.This entirety integrally, is referred to as group by all audience of speaker.The speech data of speaker is transmitted to the base station at group place by dispatcher.Speech data is transmitted to the monitoring users in community by base station again, and each community all exists group's example, and it has the function of most of domestic consumer, and all monitoring users in this community are corresponding with this group's example.
In existing system solution, monitor when carrying out handover between cells, core net will check whether the Target cell of switching exists group's example of this group, if exist, then monitor terminal will monitor this group's example voluntarily; If Target cell does not exist this group's example, core net then will set up group's example in Target cell, and monitor terminal monitors the group's example set up.Therefore, the mobility of monitor terminal must cause the inconsistency of group's example settling time.
After initialization, the data being about to receive are by PDCP(Packet Data Convergence Protocol for group's example), RLC(Radio Link Control) issue and eat dishes without rice or wine.PDCP, the RLC in user face from issue first unwrap the beginning, SN sequence number increases progressively from 0 to largest loop.The monitor terminal of base station side group example opposite end is for group's example, completely transparent.Not because or leaving of single monitor terminal enters and change.
Monitor terminal is when monitoring former community group example, adapt to No. SN of former community, but switched target approach community, because the settling time of Target cell group example is different, therefore the SN sequence number of PDCP, RLC of Target cell group example is also different, and monitor terminal needs again to adapt to.In the process, bring the time delay of data surface will to the monitor terminal switched, this time delay will cause the speech pause in handoff procedure, affects the experience of user.
Summary of the invention
The invention provides generation method and the base station of HFN and SN in a kind of trunked communication system, for reducing the data processing time delay that group service switches.
First aspect, the invention provides the generation method of group data packet number in a kind of trunked communication system, comprising:
When after base station activation group example, will receive the group data that dispatcher forwards, described group data will use RTP(Real Time Protocol in dispatcher) agreement delivers to base station.
Described group data will be forwarded by dispatcher, its RTP used is identical, PDCP(Packet Data Convergence Protocol) and RLC(Radio Link Control) HFN(Hyper Frame Number) and SN(Sequence Number) sequence number is all by No. SN generation of RTP; Therefore the sequence number of PDCP with RLC of described group data bag is identical.
The SN sequence number of the described RTP according to described group data bag generates HFN and the SN sequence number of PDCP, comprising:
No. SN, extractor from the RTP head of group data, according to its high-order No. HFN of generating PDCP, not enough figure place is supplemented by book character.According to algorithm, low level in the SN of described RTP is generated the SN sequence number of PDCP;
The SN sequence number of the described RTP according to described group data bag generates HFN and the SN sequence number of RLC, and described method also comprises:
No. SN, extractor from the RTP head of group data, generates the SN sequence number of RLC by low level in the SN of described RTP according to algorithm.
A kind of data processing method, is characterized in that, comprising:
The monitor terminal of described group, in the whole network coverage, when accessing group first, all adopts the access technology that lags of group service to access; After monitor terminal access, when its persistent district switches, monitor terminal directly can use the SN sequence number of former community, does not need the SN sequence number again being adapted to Target cell by the access technology that lags, when saving group's switching, and data surface processing delay.
Second aspect, the present invention also provides a kind of base station, comprising:
Receiver module, for when group is activated, receives the described group data forwarded from dispatcher;
RTP head processing module, for taking out the SN sequence number of RTP from described RTP head;
HFN and the SN generation module of PDCP, for generating HFN and SN of PDCP by the SN sequence number of RTP;
The generation module of HFN and SN of RLC, for generating HFN and SN of RLC by the SN sequence number of RTP;
Described base station comprises: receiver module, and specifically for receiving the group data forwarded from dispatcher, this group data will use Real-time Transport Protocol to transmit.
Described base station also comprises: RTP head processing module, for other process by RTP No. SN taking-up and Real-time Transport Protocol from RTP head.
Described base station also comprises: HFN and the SN generation module of PDCP, and for No. HFN of the SN high position generation PDCP according to RTP, not enough figure place is supplemented by book character.According to algorithm, low level in the SN of described RTP is generated the SN sequence number of PDCP;
Described base station also comprises: HFN and the SN generation module of RLC, and for No. HFN of the SN high position generation RLC according to RTP, not enough figure place is supplemented by book character.According to algorithm, low level in the SN of described RTP is generated the SN sequence number of RLC.
The third aspect, the embodiment of the present invention also provides a kind of terminal, comprising:
Receiver module, for recording the HFN of the PDCP of the group data that the first base station sends, the SN of RLC.After monitor terminal switches, the HFN of the PDCP that the first community continuing to use described terminal to be in described first BTS management obtains, the SN of RLC monitors;
Logging modle, the HFN of the PDCP that record current data packet uses, the SN of RLC, so that the reception carrying out next bag data;
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages: data retransmission after RTP head, is given the community at this group's monitoring users place at dispatching desk by group data on scheduling is added.After community receives data, then data are issued by group's example eat dishes without rice or wine.
The SN sequence number of RTP is 16, and PDCP, RLC are equal to 16, therefore, can define a class is produced HFN and the SN sequence number of PDCP/RLC algorithm by RTP, as pressed PDCP or RLC sequence number delivery etc. with the SN sequence number of RTP.All groups example of this group all can issue the packet of identical HFN and SN sequence number like this.After setting up for group's example, the community of this instance data SN not from 0, the monitoring users of this community is monitored by the method for the access that lags.
Monitor terminal, when switching, receives data in former community, has adapted to HFN and the SN sequence number of former community, and group data is all from identical dispatcher, and dispatcher uses Real-time Transport Protocol to issue.HFN and the SN sequence number that the sequence number of PDCP, RLC of the community at all groups place all uses RTP to derive, the position at place, switching cell is adjacent simultaneously, propagation delay time is limited, therefore it is consistent for switching former community with HFN with the SN sequence number of object community, therefore, occur between former community and object community switching, HFN and the SN sequence number using former community can be continued.Without the need to again deacclimatizing the SN sequence number of Target cell.
Term " first ", " second " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the term used like this can exchange in the appropriate case, this is only describe in embodiments of the invention the differentiation mode that the object of same alike result adopts when describing.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, to comprise the process of a series of unit, method, system, product or equipment being not necessarily limited to those unit, but can comprise clearly do not list or for intrinsic other unit of these processes, method, product or equipment.
Below be described in detail respectively.
The HFN of PDCP in a kind of trunked communication system of the present invention, an embodiment of the generation method of the SN of RLC, can be applicable to the HFN of PDCP in trunking communication, in the SN generation of RLC, refer to shown in Fig. 1, the HFN of PDCP in a kind of trunked communication system that one embodiment of the invention provides, the generation method of the SN of RLC, can comprise the steps:
101, when group is activated, the described group data forwarded from dispatcher is received.
In embodiments of the present invention, in cluster conversation mechanism, speaker user take dispatcher as conversation object, the speech data of speaker user is mail to dispatcher, and the speech data of speaker is transmitted to the base station at the group place activated by dispatcher, and speech data is transmitted to community by base station again.Known by the realization mechanism of trunking communication, all audiences look as a whole by speaker user, and this entirety is referred to as group.After group creating success, each community at all audience places, all there is the example of a system side, this example has the function of most of domestic consumer, and all monitoring users in a community are all corresponding with group's example.When the speech data of speaker is issued from eating dishes without rice or wine by this group's example, being just considered as all monitoring users in this community and all can receiving.
In the embodiment of the present invention, the constructive process of group can consult prior art, according to CCSA(China Communications Standards Association) standard, when the voice number of oneself is sent to dispatcher by speaker, dispatcher forwards the speech data received, and between dispatcher and group, increase RTP head is carried out transfer of data.Base station needs the group data having RTP head accepting to forward from dispatcher.Group's voice issue and eat dishes without rice or wine by the follow-up RTP head removed in base station.
In the invention process, the geographical position of neighbor cell is close, and in wire transmission, the data time difference being issued to the data arrival base station of base station from dispatcher is very little.Can not image to the change of HFN, the SN that also can not affect data exceeds and accepts window.
That is, when monitor terminal is from the first cell merge to the second community, HFN and SN that monitor terminal obtains in the first community, HFN and SN of the group data issued with the second community closely, time of two communities can not be arrived because of described group data different, cause monitoring cannot cannot accept and process with HFN and SN of the first community the packet that the second community receives in terminal.
102, the SN sequence number of the described RTP according to described group data bag generates HFN and the SN sequence number of PDCP.
In embodiments of the present invention, base station is according to the described group data bag received, from 101, obtain the SN of RTP, by its using its low level as SN, it high-order is used as HFN, the character that HFN deficiency position can lead to filling fixing completes, such as, using the low level of the SN sequence number of RTP that the receives SN as PDCP, its lower bit number is the corresponding figure place of PDCP, remove outside low level shared by PDCP by the SN in RTP, as the low level of HFN; SN as PDCP is 7, then using 7 SN sequence numbers as PDCP low in the SN of RTP, all the other 9 are used for the low level of HFN, the high-order portion of HFN is filled according to fixed character.
Monitor terminal, at receiving terminal, when accepting PDCP packet, obtains current HFN and SN of PDCP according to the access technology that lags, when its HFN of subsequent calculations, adopts the method for 16-SN figure place, calculate the number of significant digit of HFN, calculate the HFN of significance bit.The HFN that follow-up basis calculates carries out the process of required HFN.
That is, by other means, the figure place of HFN and SN of PDCP and the figure place higher than RTP, if therefore generate HFN and SN by the SN of RTP, must ensure that the HFN of the whole network figure place deficiency is high-order.Can be realized by the method reducing HFN significance bit, when can also forward described group data by dispatcher, unifiedly issue that it is high 16, head it off.
103, the SN sequence number of the described RTP according to described group data bag generates the SN sequence number of RLC.
In embodiments of the present invention, base station, according to the described group data bag received, obtains the SN of RTP from 101, by its using its low level as SN, such as, using the low level of the SN sequence number of RTP that the receives SN as RLC, its lower bit number is the corresponding figure place of RLC; SN as RLC is 7, then using 7 SN sequence numbers as RLC low in the SN of RTP.
Monitor terminal, at receiving terminal, when accepting RLC packet, obtains the current SN of RLC according to the access technology that lags.That is, the figure place of the SN of RLC, lower than the figure place of RTP, if therefore generated the SN of RLC by the SN of RTP, only needs to remove its low level.
In embodiments of the present invention, monitor terminal, when switching, receives data in former community, has adapted to the SN sequence number of former community, and group data is all from identical dispatcher, and dispatcher uses Real-time Transport Protocol to issue.The SN sequence number that the sequence number of PDCP, RLC of the community at all group's example places all uses RTP to derive, the position at place, switching cell is adjacent simultaneously, propagation delay time is limited, therefore it is consistent for switching former community with the SN sequence number of object community, therefore, occur between community, garden and object community switching, the SN sequence number using former community can be continued.Without the need to again deacclimatizing the SN sequence number of Target cell.
Illustrate as follows, when group activates, this group receives packet from dispatcher, derives HFN and SN of PDCP, the SN of RLC according to the SN sequence number of RTP in this packet; And organized bag and issue and eat dishes without rice or wine, monitor terminal is when accessing group first, and can adopt the method access of the access that lags, after access group, the COUNT value that this terminal uses only has low 16 changes, and high 16 is the employing fixed character filling identical with base station side.When monitor terminal is from the first cell merge to the second community, the group data that the method monitoring group not needing ADO to pass through to lag access issues from the second community.The data that terminal receives from the first community can not should be and switch and abandon, and the speech data packet loss before and after terminal is fewer, thus avoid terminal because cell merge causes the speech data received to occur pausing, and improve the experience of user.
Based on HFN and SN of PDCP in above trunked communication system provided by the invention, the generation method of the SN of RLC, when terminal carries out group data reception in this cluster, following data processing method can be performed, can be applicable in the process of group data in trunking communication, refer to shown in Fig. 2, can comprise the steps:
201, terminal is by reception first community.Wherein, this terminal is in the first community of the first BTS management.
In the embodiment of the present invention, the terminal in trunking communication also can be referred to as monitor terminal, and terminal, as the audience of speaker user, needs the group data that reception base station is transmitted to.Multiple base station is comprised a group, specifically, group can comprise the first base station and the second base station, be described for the process of terminal to group data in the first community of the first BTS management, the RNTI of the group received is sent to the terminal under the first community of this first BTS management by the first base station by group paging, if monitor terminal is when group creating, directly can access group, if this terminal is started shooting after group creating, then adopt existing to rear access technology, access group.
202, monitor terminal after a handover, directly accepts the group data that Target cell issues, do not do hand-off process.
Terminal is in handoff procedure, if Target cell had not created described group, then described group will create according to prior art, monitor terminal will directly be considered as losing by unreceived packet in the meantime, data data received by the first community and Target cell received attempt recovering, thus avoid terminal because cell merge causes the speech data received to occur pausing, improve the experience of user.Group belonging to as existing in Target cell, then can not there is any pause in data surface process.
For ease of better implementing the such scheme of the embodiment of the present invention, be also provided for the relevant apparatus implementing such scheme below.
Refer to shown in Fig. 3, the embodiment of the present invention provides base station 300, can comprise: HFN and the SN generation 302 of receiver module 301, PDCP, the generation module 303 of RLC, wherein,
301, receiver module, when group is activated, receives the described group data forwarded from dispatcher.
In embodiments of the present invention, in cluster conversation mechanism, speaker user take dispatcher as conversation object, the speech data of speaker user is mail to dispatcher, and the speech data of speaker is transmitted to the base station at the group place activated by dispatcher, and speech data is transmitted to community by base station again.Known by the realization mechanism of trunking communication, all audiences look as a whole by speaker user, and this entirety is referred to as group.After group creating success, each community at all audience places, all there is the example of a system side, this example has the function of most of domestic consumer, and all monitoring users in a community are all corresponding with group's example.When the speech data of speaker is issued from eating dishes without rice or wine by this group's example, being just considered as all monitoring users in this community and all can receiving.To change in prior art each base station to the process of described group data, the SN of RTP is taken out in base station after receiving the data that dispatcher transfers from RTP head.
302, HFN and SN of PDCP generates, and when base station is at PDCP layer group bag, using the SN of RTP as input, shifts out SN and HFN of PDCP onto, HFN and SN described in PDCP uses carries out PDCP group bag and issue.
In the present invention, group service is speech business mainly, when therefore the packet that forwards of dispatcher is to PDCP, there is not the possibility of grouping bag.The SN figure place of 3GPP agreement PDCP is lower than the SN figure place of RTP, and therefore use the SN of the low level composition PDCP of the SN of RTP, all the other characters of the SN of RTP form the low level of HFN in order.According to agreement, HFN and SN attacks 32, and the SN of RTP only has 16, therefore high 16 Shortcomings of HFN, and solution has two:
One: notification terminal, HFN high 16 invalid, it is invalid that high for HFN 16 are considered as by PDCP all the time, HFN and the SN significance bit used only has 16, on systemic-function and performance all without paying no attention to impact;
Its two, calculated by dispatcher, calculate from first bag receiving speaker, follow-up by the RTP received bag add up, RTP bag SN circulation primary after, add up, record low 16 pass through dispatcher repeating base station.Base station is filled by the HFN of record to PDCP received.Terminal is without the need to carrying out any special processing.
Illustrate as follows, dispatcher is when receiving first bag of group speaker user, just for this group designs a record variable, its initial value is 0, and the RTP of group adds up from initial SN, after there is maximum in described SN, carry out one-accumulate, when to base station forwarding data bag, low 16 by its record variable, according to the form of agreement, issue base station; After base station receives, when calculating HFN, directly it can be used as that HFN's is high 16, then using HFN and SN obtained to process accordingly packet.Monitor terminal is when by first cell merge the second community, and consistent during HFN with SN the whole network due to PDCP, therefore, terminal does not need to reuse in the second community the access mechanism that lags.Therefore saved processing time when monitor terminal switches, the language avoided in handoff procedure is lost, and improves the experience of user.
303, the generation module of RLC, when base station is at rlc layer group bag, using the SN of RTP as input, shifts out the SN of PDCP onto, and the SN described in PDCP uses carries out RLC group bag and issues.
In the present invention, group service is speech business mainly, when therefore the packet that forwards of dispatcher is to RLC, there is not the possibility of grouping bag.The SN figure place of 3GPP agreement RLC, lower than the SN figure place of RTP, therefore uses the SN of the low level composition RLC of the SN of RTP.
Illustrate as follows, the SN low level of its RTP, when receiving the packet of described group, is set to the packet of RLC by RLC.In 3GPP serial protocols, the SN figure place of regulation RLC is upper-layer configured, but its figure place is fewer than the SN of RTP, does not therefore need to consider all the other situations.Monitor terminal is when by first cell merge the second community, and consistent during HFN with SN the whole network due to PDCP, therefore, terminal does not need to reuse in the second community the access mechanism that lags.Therefore saved processing time when monitor terminal switches, the language avoided in handoff procedure is lost, and improves the experience of user.
Known to explanation of the present invention by above embodiment, when group is activated, dispatcher receives the data of speaker's business, dispatcher processes accordingly, after described group data arrives base station, PDCP is after accepting derivative certificate, shift out HFN and SN of oneself onto, RLC derives the SN sequence number of oneself according to the SN sequence number of RTP, due to the particularity of the agreement of RTP, ensure that continuity and the consistency of the SN sequence number of the whole network, terminal is in handoff procedure, ensure that oneself continuity to VoP process, improve Consumer's Experience.
It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
Refer to as shown in Figure 4, in some embodiments of the invention, relative to terminal as shown in Figure 4, can also comprise:
Logging modle 401, for monitor terminal after monitoring group, to HFN and SN of PDCP of described group data bag and the record of the SN of RLC; Receiver module 402, for resolving the described group data bag of Target cell after handover with relevant parameter described in 401.
Known to explanation of the present invention by above embodiment, terminal is in handoff procedure, if Target cell had not created described group, then described group will create according to prior art, monitor terminal will directly be considered as losing by unreceived packet in the meantime, data data received by the first community and Target cell received attempt recovering, thus avoid terminal because cell merge causes the speech data received to occur pausing, and improve the experience of user.Group belonging to as existing in Target cell, then can not there is any pause in data surface process.Avoid terminal because cell merge causes the speech data received to occur pausing, improve the experience of user.
It should be noted that, the content such as information interaction, implementation between each module/unit of said apparatus, due to the inventive method embodiment based on same design, its technique effect brought is identical with the inventive method embodiment, particular content see describing in the aforementioned shown embodiment of the method for the present invention, can repeat no more herein.
It should be noted that in addition, device embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.In addition, in device embodiment accompanying drawing provided by the invention, the annexation between module represents to have communication connection between them, specifically can be implemented as one or more communication bus or holding wire.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly comprise application-specific integrated circuit (ASIC), dedicated cpu, private memory, special components and parts etc. realize by specialized hardware.Generally, all functions completed by computer program can realize with corresponding hardware easily, and the particular hardware structure being used for realizing same function also can be diversified, such as analog circuit, digital circuit or special circuit etc.But under more susceptible for the purpose of the present invention condition, software program realizes is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computer, USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in the present invention each embodiment.
In sum, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in the various embodiments described above, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, to those skilled in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
The HFN of PDCP in a kind of trunked communication system that Fig. 1 provides for the embodiment of the present invention, the process blocks schematic diagram of the generation method of the SN of RLC;
The process blocks schematic diagram of a kind of terminal switch data processing method that Fig. 2 provides for the embodiment of the present invention;
The composition structural representation of a kind of base station that Fig. 3 provides for the embodiment of the present invention;
The composition structural representation of a kind of terminal that Fig. 4 provides for the embodiment of the present invention.
Embodiment
HFN and SN of PDCP in a kind of trunked communication system is provided, the generation method of the SN of RLC, base station and terminal, for reducing the data processing time delay that group service switches in the embodiment of the present invention.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and not all embodiments.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtains, all belongs to the scope of protection of the invention.
Claims (10)
1. the generation method of group data packet number in trunked communication system, is characterized in that, comprising:
When after base station activation group example, will receive the group data that dispatcher forwards, described group data will use RTP(Real Time Protocol in dispatcher) agreement delivers to base station;
Described group data military affairs are forwarded by dispatcher, its RTP used identical, PDCP(Packet Data Convergence Protocol) HFN(Hyper Frame Number) and SN(Sequence Number) sequence number, RLC(Radio Link Control) all produced by the SN of RTP; Therefore sequence number the whole network of PDCP with RLC of described group data bag is identical.
2. method according to claim 1, is characterized in that, the SN sequence number of the described RTP according to described group data bag generates HFN and the SN sequence number of PDCP, comprising:
No. SN, extractor from the RTP head of group data, according to its high-order No. HFN of generating PDCP, not enough figure place is supplemented by book character; According to algorithm, low level in the SN of described RTP is generated the SN sequence number of PDCP.
3. method according to claim 1, is characterized in that, the SN sequence number of the described RTP according to described group data bag generates the SN sequence number of RLC, and described method also comprises:
No. SN, extractor from the RTP head of group data, generates the SN sequence number of RLC by low level in the SN of described RTP according to algorithm.
4. a data processing method, is characterized in that, comprising:
The monitor terminal of described group, in the whole network coverage, when accessing group first, all adopts the access technology that lags of group service to access; After monitor terminal access, when its persistent district switches, monitor terminal directly can use the SN sequence number of former community, does not need the SN sequence number again being adapted to Target cell by the access technology that lags, when saving group's switching, and data surface processing delay.
5. a base station, is characterized in that, comprising:
Receiver module, for when group is activated, receives the described group data forwarded from dispatcher;
RTP head processing module, for taking out the SN sequence number of RTP from described RTP head;
HFN and the SN generation module of PDCP, for generating HFN and SN of PDCP by the SN sequence number of RTP;
The generation module of the SN of RLC, for generating the SN of RLC by the SN sequence number of RTP.
6. base station according to claim 5, is characterized in that, described base station comprises: receiver module, and specifically for receiving the group data forwarded from dispatcher, this group data will use Real-time Transport Protocol to transmit.
7. base station according to claim 5, is characterized in that, described base station also comprises: RTP head processing module, for other process by RTP No. SN taking-up and Real-time Transport Protocol from RTP head.
8. base station according to claim 5, is characterized in that, described base station also comprises: HFN and the SN generation module of PDCP, and for No. HFN of the SN high position generation PDCP according to RTP, not enough figure place is supplemented by book character; According to algorithm, low level in the SN of described RTP is generated the SN sequence number of PDCP.
9. base station according to claim 5, is characterized in that, described base station also comprises: the SN generation module of RLC;
According to algorithm, low level in the SN of described RTP is generated the SN sequence number of RLC.
10. a terminal, is characterized in that, comprising:
Receiver module, for recording the HFN of the PDCP of the group data that the first base station sends, the SN of RLC;
After monitor terminal switches, the HFN of the PDCP that the first community continuing to use described terminal to be in described first BTS management obtains, the SN of RLC monitors;
Logging modle, the HFN of the PDCP that record current data packet uses, the SN of RLC, so that the reception carrying out next bag data.
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| JP2018529296A (en) * | 2015-09-23 | 2018-10-04 | クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ | Call continuity in high uplink interference conditions |
| CN111447569A (en) * | 2020-04-03 | 2020-07-24 | 北京运安智维科技有限公司 | Method for idle called cluster terminal to receive wireless broadband cluster data service |
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