CN101601322A - Communication system, base station and mobile radio station - Google Patents
Communication system, base station and mobile radio station Download PDFInfo
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- CN101601322A CN101601322A CNA2007800484987A CN200780048498A CN101601322A CN 101601322 A CN101601322 A CN 101601322A CN A2007800484987 A CNA2007800484987 A CN A2007800484987A CN 200780048498 A CN200780048498 A CN 200780048498A CN 101601322 A CN101601322 A CN 101601322A
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Abstract
The invention provides a kind of communication system, base station and mobile radio station.The packet fragmentation that base station (2) should send is a plurality of wireless transmission blocks, obtain the affirmation amount of the sending to aggregate-value of aggregate-value of size that the wireless transmission block of expression arrives the wireless transmission block of sending to affirmation of mobile radio station (3) according to expression and decided priority, and according to the priority that is determined to constituting the wireless transmission block distributing radio resource of the grouping that should send, use institute's assigned radio resource to send wireless transmission block, mobile radio station (3) will be sent under situation about normally receiving from the wireless transmission block of base station (2) and confirm to send to base station (2), according to wireless transmission block regeneration grouping.
Description
Technical field
The present invention relates in the communication system of having used radiolink, consider the communication system of effective utilization of circuit, particularly become the communication system that invalid data volume realizes effective utilization of circuit by reducing owing to abandoning.
Background technology
As by reducing, patent documentation 1 is for example arranged because abandoning of grouping becomes the conventional art that invalid data volume effectively utilizes circuit.In the communication means in the past of patent documentation 1 record, it is the wireless segment (wireless segment) that the communication unit length on the radiolink forms that the base-station control apparatus generation will receive packet fragmentation, and sets the information relevant with retransmitting control and send to the base station in the head of all wireless segments that generate.The base station generates the transmission frame of stipulating (wireless transmission block) according to the wireless segment that receives from base-station control apparatus, and the wireless transmission block that will generate sends to mobile radio station.In addition, the base station makes with the wireless transmission block that generates according to the wireless segment of the position in the grouping in the back and retransmits the repeating transmission number of times that the many more modes of number of times determine wireless transmission block, the repeating transmission number of times that is not being determined in the base station is with under the interior situation that normally receives wireless transmission block, interrupt the repeating transmission of this wireless transmission block, abandon the wireless segment corresponding and all follow-up wireless segments with this wireless transmission block.
Promptly, in the communication means in the past of patent documentation 1 record, the grouping of having finished for sending to of most wireless transmission block, send to the repeating transmission number of times of uncompleted remaining wireless transmission block by increase, the wireless transmission block that reduces owing to retransmit that number of times surpasses that the transmission of wireless transmission block is interrupted and mobile radio station can't be regenerated original grouping and sent to affirmation becomes useless probability, thereby effectively utilizes radiolink (frequency).
In addition, switch between the base station, need send the grouping of between handover source base station and mobile radio station, not sending between purpose base station and the mobile radio station once more switching in order to implement under the situation of obliterated data not.But, when the grouping of having finished for sending to of most wireless transmission block sends grouping once more between switching purpose base station and mobile radio station, exist the wireless transmission block of having been sent to affirmation to become useless and the such problem of waste radiolink (frequency).In addition, also need the grouping of the down direction that will not send to send to and switch the purpose base station from handover source base station.
Conventional art as improving such problem for example has patent documentation 2.In patent documentation 2, following technology is disclosed: till finishing the regeneration of grouping at receiver side, actual switching is carried out postponed, thereby minimizing produces the possibility that abandons of short grouping, can prevent the deterioration of frequency utilization efficient as far as possible and postpone increase.That is, in the conventional art of patent documentation 2 records, thereby do not waste radiolink by after grouping is finished, carrying out to switch.
Patent documentation 1: TOHKEMY 2005-27167 communique
Patent documentation 2: TOHKEMY 2000-92542 communique
But, in wireless communication system, not necessarily obtain the affirmation of sending to of retransmitting control according to the sending order of wireless transmission block.Also might the wireless transmission block for certain retransmit repeatedly during obtain the affirmation of sending to of follow-up wireless transmission block.Therefore, in the communication means in the past that decides above-mentioned patent documentation 1 record of retransmitting number of times according to the position in the grouping of wireless transmission block, the wireless transmission block that existence can't be brought into play minimizing fully and sent becomes the problem of the such effect of useless probability.
In addition, wireless transmission block can't be sent in the reason of receiver side in wireless communication system, following two situations are arranged: because the repeating transmission number of times of wireless transmission block reaches the upper limit of retransmitting number of times by retransmitting control, so transmitter side abandons the situation of the wireless segment corresponding with this wireless transmission block and follow-up all wireless segments; And be stranded in the buffer owing to wireless segment surpasses the residual allowed time, so transmitter side abandons the situation of this wireless segment and follow-up all wireless segments.In the communication means in the past of above-mentioned patent documentation 1 record, only changed the higher limit of retransmitting number of times, and do not consider the residual allowed time, so surpassed before reaching the upper limit of retransmitting number of times under the situation of residual allowed time, the wireless transmission block that existence can't be brought into play minimizing fully and sent becomes the problem of the such effect of useless probability.
In addition, in wireless communication system, grouping is split into a plurality of wireless transmission blocks and sends generally speaking, and the control of wireless transmission block being carried out modulation system, encoding rate remains necessarily with the error rate with wireless transmission block, so there are the following problems: according to grouping is to constitute (grouping cut apart number) by several wireless transmission blocks, and the error rate of grouping becomes different values.Particularly, the error rate that exist to constitute the many more groupings of wireless transmission block number of the grouping big more such problem that becomes.
In addition, in the conventional art of above-mentioned patent documentation 2 records, the handoff request that obtains as mass measurement according to radiolink constantly and the switching of reality carry out the switching delay time of difference constantly and become unstable owing to be subjected to the influence of the radiolink variation of quality between mobile radio station and base station.Therefore, make switching delay during the further deterioration of radiolink quality and under the situation that can't communicate, exist also to add the wireless transmission block of in time of delay, sending to and waste the such problem of a lot of radiolinks.
Summary of the invention
The present invention In view of the foregoing finishes, its first purpose is to provide a kind of communication system, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink (frequency).
Second purpose is to provide a kind of communication system, can not be subjected to constituting grouping wireless transmission block number influence and the error rate of grouping is remained necessarily.
The 3rd purpose is to provide a kind of communication system, shortens the switching delay time and finishes switching owing to the deterioration of radiolink quality before can't communicating.
The 4th purpose is to provide a kind of communication system, is becoming before can't communicating under the hopeless situation of finishing grouping, carries out immediately constantly in handoff request and switches.
In order to solve above-mentioned problem, and, the invention provides a kind of communication system in order to reach purpose, base station and remote station that mobile station via is connected on the network communicate, it is characterized in that above-mentioned base station possesses: wireless transmission block generating unit, the packet fragmentation that should send are a plurality of wireless transmission blocks; Scheduler portion, according to sending to affirmation amount aggregate-value decision priority, and according to the priority that is determined to constituting the wireless transmission block distributing radio resource of the grouping that should send, the above-mentioned affirmation amount aggregate-value of sending to has been represented to obtain and has been represented that above-mentioned wireless transmission block arrives the aggregate-value of size of the wireless transmission block of sending to affirmation of above-mentioned mobile radio station; And wireless transmission block sending part, use is by above-mentioned scheduler portion assigned radio resource, the wireless transmission block that transmission is generated by above-mentioned wireless transmission block generating unit, above-mentioned mobile radio station possesses: retransmit control part, under the situation that normally receives wireless transmission block from above-mentioned base station, will send to and confirm to send to above-mentioned base station, under the situation that does not normally receive wireless transmission block, re-send request may be sent to above-mentioned base station from above-mentioned base station; And the grouping reproducing unit, according to the wireless transmission block regeneration grouping that receives from above-mentioned base station.
According to the present invention, obtained according to expression and to have represented that the affirmation amount of the sending to aggregate-value of aggregate-value of size that wireless transmission block arrives the wireless transmission block of sending to affirmation of mobile radio station decides priority, and according to the priority that is determined to constituting the wireless transmission block distributing radio resource of the grouping that should send, so reach following effect: reduced with packet fragmentation be a plurality of wireless transmission blocks when sending because wireless transmission block no show mobile radio station and the wireless transmission block that can't regenerate grouping and sent to affirmation becomes useless probability, thereby the wireless communication system of the radiolink that can be utilized effectively.
Description of drawings
Fig. 1 is the figure of structure that the execution mode 1 of the communication system among the present invention is shown.
Fig. 2 is the block diagram that the structure relevant with the communication of the down direction of base station shown in Figure 1 is shown.
Fig. 3 is the block diagram that the structure relevant with the communication of the down direction of mobile radio station shown in Figure 1 is shown.
Fig. 4 is the flow chart of action of scheduler portion of execution mode 1 that is used for illustrating the present invention's communication system.
Fig. 5 is the figure that is used to illustrate the variation of the affirmation amount of the sending to aggregate-value when paying close attention to some the grouping.
Fig. 6 is the flow chart that is used for illustrating the action that the scheduling of scheduler portion of execution mode 1 of the present invention's communication system is handled.
Fig. 7 is the figure of variation that is used to illustrate the priority of scheduling.
Fig. 8 is the figure that another example of the communication system among the present invention is shown.
Fig. 9 is the block diagram of structure of communication of up direction that the mobile radio station of the execution mode 2 among the present invention is shown.
Figure 10 is the block diagram of structure of communication of up direction that the base station of the execution mode 2 among the present invention is shown.
Figure 11 is the flow chart of action of scheduler portion of base station that is used for illustrating the present invention's execution mode 2.
Figure 12 is the figure of the variation of the affirmation amount of the sending to aggregate-value when being used to illustrate concern from grouping that certain mobile radio station sends.
Figure 13 is the figure of the example of the delay allowed time when the some grouping of the concern of the execution mode 3 among the present invention is shown.
Figure 14 is the flow chart that is used for illustrating the action that the scheduling of scheduler portion of base station of the present invention's execution mode 3 is handled.
Figure 15 is the figure that the structure of the radiolink quality information table that the scheduler portion of the base station of the execution mode 4 among the present invention possesses is shown.
Figure 16 is the figure that the structure of the grouping sheet that the scheduler portion of the base station of the execution mode 6 among the present invention possesses is shown.
Figure 17 is the figure of structure that the execution mode 7 of the communication system among the present invention is shown.
Figure 18 is the block diagram that the structure relevant with the communication of the down direction of mobile radio station shown in Figure 17 is shown.
Figure 19 is the block diagram that the structure relevant with the communication of the down direction of mobile radio station shown in Figure 17 is shown.
Figure 20 is the figure that the deterioration and the time relation of radiolink quality are shown.
Figure 21 is the flow chart of action of scheduler portion of base station that is used for illustrating the present invention's execution mode 8.
Figure 22 is the figure of an example when the affirmation amount of sending to aggregate-value to the communication system in the embodiments of the present invention 10 being shown carrying out indexation.
Figure 23 is the figure that an example when the grouping size of the communication system in the embodiments of the present invention 10 carried out indexation is shown.
Figure 24 is the figure of an example that the form of extended MAC-e PDU that the communication system in the embodiments of the present invention 10 uses is shown.
Figure 25 is the figure of another example that the form of extended MAC-e PDU that the communication system in the embodiments of the present invention 10 uses is shown.
Figure 26 be illustrated in used in the scheduling of the communication system in the embodiments of the present invention 10 when sending to affirmation amount aggregate-value with the rlc layer of 3gpp TS25.321 expansion and the figure of convey a message (primitive) between the MAC layer.
Figure 27 illustrates the rlc layer that 3gppTS25.321 is expanded of the communication system in the embodiments of the present invention 13 and the figure of convey a message (primitive) between the MAC layer.
Figure 28 is the figure that is used to illustrate packet positions information.
Symbol description
1 cable network
2,2a-1,2a-m base station
3-1,3-2,3-n, 3a-1,3a-2,3a-n mobile radio station
5 base-station control apparatus
201 wire signal acceptance divisions
202,312 packet buffers
203,313 wireless transmission block generating units
204,214,304,314 retransmit control part
205,315 retransmit the control signal acceptance division
206,211,301,316 wireless signals send acceptance division
207,317 wireless transmission block sending parts
208,219 scheduler portions (scheduler)
209 radiolink quality information acceptance divisions
210 switch control portion
212,303 retransmit the control signal sending part
213,302 wireless transmission block acceptance divisions
215,305 grouping reproducing units
216 wire signal sending parts
217 send the indication sending part
218 send the request acceptance division
306 grouping acceptance divisions
307 radiolink quality information sending parts
308 handoff request portions
311 grouping generating units
318 send the indication acceptance division
319 control parts
320 send the request sending part
Embodiment
Below, with reference to the accompanying drawings, describe the execution mode of communication system of the present invention, base station and mobile radio station in detail.In addition, the invention is not restricted to present embodiment.In addition, the method that the more than one execution mode combination in the execution mode of following explanation is obtained is also contained in the scope of the present invention.
With reference to Fig. 1～Fig. 8 embodiments of the present invention 1 are described.Fig. 1 is the figure of structure that the execution mode 1 of the communication system among the present invention is shown.In Fig. 1, communication system possesses cable network 1, base station 2, n (n is a natural number) platform mobile radio station 3 (expression 3-1～3-n).Cable network 1 and base station 2 are connected by Wireline, base station 2 and mobile radio station 3 are connected by radiolink, mobile radio station 3 is via base station 2 and cable network 1, used the intercommunication mutually of grouping with fixed terminal (not shown), the mobile radio station on being connected cable network 1.
In present embodiment 1, illustrate that base station 2 will send to the communication of the down direction of mobile radio station 3 from the grouping that cable network 1 receives.Fig. 2 is the block diagram that the structure relevant with the communication of the down direction of base station shown in Figure 12 is shown.In Fig. 2, base station 2 possesses: wire signal acceptance division 201 has the interface function of Wireline and receives signal (grouping) from cable network 1; Packet buffer 202 cushions the grouping that is received by wire signal acceptance division 201; Scheduler portion (scheduler) 208 determines the size to the wireless transmission block of mobile radio station 3 transmissions, and carries out the scheduling processing of wireless transmission block; Wireless transmission block generating unit 203, according to the grouping of selecting by scheduler portion 208, the wireless transmission block of the size that generation scheduler portion 208 is determined; Retransmit control part 204, with wireless transmission block unit carry out and mobile radio station 3 between repeating transmission control; Wireless transmission block sending part 207 sends the wireless transmission block that is generated by wireless transmission block generating unit 203; Wireless signal sends acceptance division 206, has the interface function of radiolink and the signal between transmission reception and the mobile radio station 3; Retransmit control signal acceptance division 205, from the signal that receives by wireless signal transmission acceptance division 206, extract out and retransmit control information; And radiolink quality information acceptance division 209, the radiolink quality information of the radiolink of extraction down direction from the signal that receives by wireless signal transmission acceptance division 206.
Fig. 3 is the block diagram that the structure relevant with the communication of the down direction of mobile radio station shown in Figure 13 is shown.In Fig. 3, mobile radio station 3 possesses: wireless signal sends acceptance division 301, has the signal between radiolink interface function and transmission reception and the base station 2; Wireless transmission block acceptance division 302 is extracted wireless transmission block out from the signal that is received by wireless signal transmission acceptance division 301; Retransmit control part 304, carry out and base station 2 between repeating transmission control; Retransmit control signal sending part 304, send by retransmitting the repeating transmission control information that control part 304 generates; Grouping reproducing unit 305, according to the wireless transmission block that receives by wireless transmission block acceptance division 302, the regeneration grouping; Grouping acceptance division 306 receives by the grouping of grouping reproducing unit 305 regeneration and to not shown upper layer handling part output grouping; And radiolink quality information sending part 307, the radiolink quality information of the radiolink of down direction is measured, and the radiolink quality information of measuring is sent to base station 2.
Next, the action of the execution mode 1 of the communication system among the present invention is described.Receive when grouping at the wire signal acceptance division 201 via base station 2,202 pairs of groupings that receive of packet buffer cushion, and the advisory that will receive new grouping is given scheduler portion 208.Scheduler portion 208 will send to initialization of affirmation amount aggregate-value and storage accordingly with new grouping.
On the other hand, when sending acceptance division 206 via the wireless signal of base station 2 and receive signal from mobile radio station 3, radiolink quality information acceptance division 209 is exported to scheduler portion 208 from the radiolink quality information from the radiolink of extracting the down direction of being measured by the radiolink quality information sending part 307 of mobile radio station 3 signal of mobile radio station 3 out with the radiolink quality information of extracting out.
In addition, the repeating transmission control signal acceptance division 205 of base station 2 is extracted the repeating transmission control information out from send acceptance division 206 via wireless signal from the signal that mobile radio station 3 receives, and repeating transmission control part 204 is exported in the repeating transmission control information that will extract out.
Whether the repeating transmission control part 204 of base station 2 is retransmitted with wireless transmission block unit according to retransmitting the control information decision.Retransmitting control information is that expression normally receives under the situation of sending to affirmation of wireless transmission block, the repeating transmission control part 204 of base station 2 will be sent to confirmation and export to scheduler portion 208, and scheduler portion 208 upgrades the affirmation amount of the sending to aggregate-value that is mapped and stores with grouping according to sending to confirmation.Retransmitting under the situation of control information for the re-send request may of the repeating transmission of the wireless transmission block of request the retransmission process that the wireless transmission block of having asked to retransmit is put rules into practice.
When having arrived the scheduling time of predetermined wireless transmission block, the scheduler portion 208 of base station 2 decides the size of wireless transmission block according to the radiolink quality information.In addition, scheduler portion 208 according to be buffered in the be mapped affirmation amount of the sending to aggregate-value of storage of each grouping in the packet buffer 202 and decide the priority of grouping, and carry out scheduling processing to the wireless transmission block distributing radio resource that generates from this grouping, the details aftermentioned of this part according to the priority that determined.Then, scheduler portion 208 will comprise and be used to generate the wireless transmission block generation information of handling the size of the grouping of the wireless transmission block that has distributed Radio Resource and wireless transmission block by scheduling and export to wireless transmission block generating unit 203, and the transmission information that will comprise the information of wireless transmission block and institute's assigned radio resource is exported to and retransmitted control part 204.
The wireless transmission block generating unit 203 of base station 2 generates information according to wireless transmission block, generates wireless transmission block according to the grouping that is buffered in the packet buffer 202, and the wireless transmission block that will generate is exported to repeating transmission control part 204.
The repeating transmission control part 204 of base station 2 will send information and wireless transmission block is exported to wireless transmission block sending part 207.Wireless transmission block sending part 207 sends acceptance division 206 with wireless transmission block via wireless signal and sends to mobile radio station 3 according to transmission information.
The wireless transmission block acceptance division 302 of mobile radio station 3 is extracted wireless transmission block out and is exported to and retransmit control part 304 from the signal that receives via wireless signal transmission acceptance division 301.Retransmit control part 304 and judge whether normally received wireless transmission block (whether data go wrong).Under the situation that has normally received wireless transmission block, retransmit control part 304 wireless transmission block is exported to grouping reproducing unit 305, and the advisory that will normally receive wireless transmission block is given and retransmitted control signal sending part 303.
The grouping reproducing unit 305 of mobile radio station 3 is according to wireless transmission block regeneration grouping.The wireless transmission block generating unit 203 of base station 2 is that the information (wireless transmission block sequence number) of which wireless transmission block of grouping is included in the wireless transmission block with the wireless transmission block of expression when generating wireless transmission block.The grouping reproducing unit 305 of mobile radio station 3 is used this information, according to wireless transmission block regeneration grouping.Grouping reproducing unit 305 is exported to grouping acceptance division 306 with the grouping of regeneration after all the wireless transmission blocks that normally receive the formation grouping and the grouping of having regenerated.
On the other hand, normally do not receiving under the situation of wireless transmission block, the repeating transmission control part 304 of mobile radio station 3 abandons wireless transmission block, and the advisory that will normally not receive wireless transmission block give to be retransmitted control signal sending part 303.
The repeating transmission control signal sending part 303 of mobile radio station 3 does not normally receive under the situation of wireless transmission block notified, with re-send request may as retransmitting control information, send acceptance division 301 via wireless signal and send to base station 2, normally received under the situation of wireless transmission block notified, to send to and confirm to send acceptance division 301 via wireless signal and send to base station 2 as retransmitting control information.
Next, with reference to flow chart, Fig. 5 and Fig. 7 of Fig. 4 and Fig. 6, describe the action of the scheduler portion 208 of base station 2 in detail.When packet buffer 202 is given notice the situation that has received new grouping (step S100), scheduler portion 208 will send to affirmation amount aggregate-value initialization (" 0 " in this case) and storage (step S101) accordingly with new grouping.
Receiving (step S102) when sending to confirmation from retransmitting control part 204, the be mapped affirmation amount of the sending to aggregate-value stored of 208 pairs in scheduler portion and the grouping that receives the wireless transmission block of sending to confirmation adds and sends to the affirmation amount and upgrade and send to affirmation amount aggregate-value (step S103).
At this, the variation of sending to affirmation amount aggregate-value when the some groupings of concern (to the grouping of mobile radio station 3-1) being described with reference to Fig. 5.In Fig. 5, numerals in the grouping 44 in wireless transmission block 43a, 43b, 43c and the mobile radio station 3-1 in wireless transmission block 42a on grouping 4 in the base station 2, wireless transmission block 41a～41c, the radiolink, 42b-1～42b-3,42c, the mobile radio station 3-1 will divide into groups 4 grouping size normalization during for " 1 " each wireless transmission block or the size of grouping, the interior numeral of bracket of sending to affirmation amount aggregate-value and wireless transmission block 42a, 42b-1～42b-3,42c 4 the aggregate-values of sending to the affirmation amount when being normalized to " 1 " that will divide into groups.
The grouping 4 that arrives base station 2 from cable network 1 sends at radiolink after being split into wireless transmission block 41a～41c according to the size of radiolink quality information decision.Base station 2 is " 0.5 " according to the radiolink quality information with the decision of the size of wireless transmission block, and first the wireless transmission block 41a that constitutes grouping 4 is sent to radiolink as wireless transmission block 42a.Because wireless transmission block 41a is grouping first wireless transmission block of 4, so the send to affirmation amount aggregate-value corresponding with grouping 4 is " 0 ".
Mobile radio station 3-1 receives the wireless transmission block 42a on the radiolink.Because wireless transmission block 42a can normally be received as wireless transmission block 43a, so mobile radio station 3-1 confirms that with sending to of wireless transmission block 43a 45a sends to base station 2.
Send to when confirming 45a receiving, base station 2 confirms that according to sending to 45a obtains the size of corresponding wireless transmission block 41a and as sending to the affirmation amount, adds and send to the affirmation amount and upgrade and send to affirmation amount aggregate-value sending to affirmation amount aggregate-value.
Mobile radio station 3-1 receives the wireless transmission block 42b-1 on the radiolink.Owing to normally do not receive the wireless transmission block 42b-1 on the radiolink, so the re-send request may of wireless transmission block 42b-1 is sent to base station 2.Afterwards, mobile radio station 3-1 receives the wireless transmission block 42c on the radiolink.Because wireless transmission block 42c can normally be received as wireless transmission block 43c, so mobile radio station 3-1 confirms that with sending to of wireless transmission block 43c 45c sends to base station 2.
Send to when confirming 45c receiving, base station 2 confirms that according to sending to 45c obtains the size of corresponding wireless transmission block 41c and as sending to the affirmation amount, adds and send to the affirmation amount and upgrade and send to affirmation amount aggregate-value sending to affirmation amount aggregate-value.In this case, send to affirmation amount aggregate-value and be " 0.5 ", the size of wireless transmission block 41c is " 0.3 ", is updated to " 0.8 " so send to affirmation amount aggregate-value.
Mobile radio station 3-1 receives the wireless transmission block 42b-2 on the radiolink.Mobile radio station 3-1 is owing to the wireless transmission block 42b-2 that does not also normally receive on the radiolink, so the re-send request may of wireless transmission block 42b-2 is sent to base station 2.Base station 2 receives the re-send request may of wireless transmission block 42b-2, and wireless transmission block 41b is retransmitted on radiolink as wireless transmission block 42b-3.At this moment, be " 0.8 " with the grouping 4 affirmation amount of the sending to aggregate-values that are mapped.
Mobile radio station 3-1 receives the wireless transmission block 42b-3 on the radiolink.Owing to the wireless transmission block 42b-3 on the radiolink normally can be received as wireless transmission block 43b, mobile radio station 3-1 confirms that with sending to of wireless transmission block 43b 45b sends to base station 2.
Send to when confirming 45b receiving, base station 2 confirms that according to sending to the size that 45b obtains corresponding wireless transmission block 41b is used as sending to the affirmation amount, adds and sends to the affirmation amount and upgrade and send to affirmation amount aggregate-value sending to affirmation amount aggregate-value.In this case, send to affirmation amount aggregate-value and be " 0.8 ", the size of wireless transmission block 41b is " 0.2 ", becomes " 1 " so send to affirmation amount aggregate-value.That is, mean that the wireless transmission block 41a～41c that constitutes grouping 4 has been delivered to mobile radio station 3-1.Therefore, base station 2 is judged as being sent completely of grouping 4 when sending to affirmation amount aggregate-value and become " 1 ", and deletion and the grouping 4 affirmation amount of the sending to aggregate-values that are mapped and store.
On the other hand, in mobile radio station 3-1, owing to normally receive wireless transmission block 43b, the grouping 44 of regenerating so constitute the finishing receiving of wireless transmission block 43a～43c of grouping.
The scheduler portion 208 of base station 2 and the situation of paying close attention to above-mentioned grouping to mobile radio station 3-1 are similarly, whenever receiving when confirming, upgrade the affirmation amount of sending to aggregate-value with the storage that is mapped corresponding to the grouping that wireless transmission block constituted of sending to affirmation from sending to of each mobile radio station 3.
Turn back to Fig. 4, when having arrived predetermined scheduling time (step S104), scheduler portion 208 is according to deciding the priority of grouping with being buffered in the be mapped affirmation amount of the sending to aggregate-value of storage of each grouping in the packet buffer 202, and carries out scheduling processing (step S105) to the wireless transmission block distributing radio resource that generates according to this grouping according to the priority that is determined.
With reference to the flow process of Fig. 6, describe the action of the scheduling processing of scheduler portion 208 execution in detail.Scheduler portion 208 will be buffered in each grouping in the packet buffer 202 affirmation amount of the sending to aggregate-value of storage priority when dispatching that is mapped with the wireless transmission block of opposing.That is, it is big more to send to affirmation amount aggregate-value, and it is high more to be judged to be priority.The wireless transmission block that scheduler portion 208 will constitute the highest grouping of priority is chosen as process object piece (step S200).
The residue (step S201) whether Radio Resource is arranged is judged by scheduler portion 208.208 pairs of wireless transmission block distributing radio resource of selecting as the process object piece (step S202) of scheduler portion are being arranged under the remaining situation of Radio Resource.
Fig. 7 illustrates the figure of variation that the priority of (covering) scheduling when three mobile radio station 3-1～3-3 are arranged is accommodated in base station 2.In Fig. 7, represented according to periodic scheduling time t1～t4 with to corresponding which the wireless transmission block of the affirmation amount of sending to aggregate-value priority treatment (to the wireless transmission block of mobile radio station 3-1～3-3) of the grouping of mobile radio station 3-1～3-3, the order of numeric representation scheduler portion 208 distributing radio resource in zero.
At scheduling time t1, be " 0.3 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-1, be " 0.0 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-2, be " 0.0 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-3.Scheduler portion 208 is high more owing to sending to the big more priority that is judged to be of affirmation amount aggregate-value, so at this, at first will constitute wireless transmission block to the grouping of mobile radio station 3-1 as the process object piece and distributing radio resource, next wireless transmission block to the grouping of mobile radio station 3-2 will be constituted as the process object piece and distributing radio resource, wireless transmission block to the grouping of mobile radio station 3-3 will be constituted at last as the process object piece and distributing radio resource.Under the identical situation of priority (in this case, mobile radio station 3-2 and mobile radio station 3-3), according to predetermined order decision priority.
At scheduling time t2, formation all is delivered to mobile radio station 3-1 to the wireless transmission block of the grouping of mobile radio station 3-1, and packet buffer 202 does not cushion the new grouping of oriented mobile radio station 3-1, thus do not exist with to the corresponding affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-1.In addition and since received scheduling time t2 before from mobile radio station 3-3 transmission wireless transmission block send to affirmation, so become " 0.9 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-3.Because the affirmation amount of the sending to aggregate-value to the grouping of mobile radio station 3-2 is " 0.0 ", so scheduler portion 208 will constitute wireless transmission block to the grouping of mobile radio station 3-3 as the process object piece and after the distributing radio resource, will constitute wireless transmission block to the grouping of mobile radio station 3-2 as the process object piece and distributing radio resource.
At scheduling time t3, owing to be buffered to the packet buffer 202 to the grouping of mobile radio station 3-1 in during from scheduling time t2 to scheduling time t3, so to the value of the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-1 be initialised (" 0 ").In addition and since received scheduling time t3 before from mobile radio station 3-2 transmission wireless transmission block send to affirmation, so become " 0.5 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-2.Therefore, scheduler portion 208 at first will constitute priority the highest (it is big to send to affirmation amount aggregate-value) to the wireless transmission block of the grouping of mobile radio station 3-3 as the process object piece and distributing radio resource, with constitute priority time high to the wireless transmission block of the grouping of mobile radio station 3-2 as the process object piece and distributing radio resource, will constitute afterwards priority minimum to the wireless transmission block of the grouping of mobile radio station 3-1 as the process object piece and distributing radio resource.
At scheduling time t4, owing to receive respectively from mobile radio station 3-1 and mobile radio station 3-2 in during from scheduling time t3 to scheduling time t4 and send to affirmation, so the affirmation amount of the sending to aggregate-value to the grouping of mobile radio station 3-1 becomes " 0.1 ", become " 0.8 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-2.In addition, constituting after the wireless transmission block of the grouping of mobile radio station 3-3 all is delivered to mobile radio station 3-3, because packet buffer 202 has newly cushioned the grouping to mobile radio station 3-3, so become " 0.0 " to the affirmation amount of the sending to aggregate-value of the grouping of mobile radio station 3-3.
As mentioned above, in present embodiment 1, decide priority according to sending to affirmation amount aggregate-value, wherein, sending to affirmation amount aggregate-value has represented to obtain and has been used to represent that wireless transmission block arrives the aggregate-value of size of the wireless transmission block of sending to affirmation of mobile radio station, and according to the priority that is determined to constituting the wireless transmission block distributing radio resource of the grouping that should send, so reduced with packet fragmentation be a plurality of wireless transmission blocks when sending because wireless transmission block no show the mobile radio station 3 and wireless transmission block that can't regenerate grouping and sent to affirmation becomes useless probability, thereby can effectively utilize radiolink.
In addition, in present embodiment 1, the value of sending to affirmation amount aggregate-value is big more, establish priority high more, and preferential the transmission belongs to the wireless transmission block of having obtained in the ratio grouping how of sending to affirmation, so abandon under the situation of wireless transmission block having to stop, belonging to the wireless transmission block of having obtained in the few grouping of the ratio of sending to affirmation is dropped, the quantitative change of the wireless transmission block of can't assemble packets in mobile radio station 3 and abandoning is few, can effectively utilize frequency or improve throughput on the grouping rank.
In addition, in present embodiment 1, used grouping has been carried out normalization and the value that obtains sending to the affirmation amount, but also can use actual data volume.
In addition, in present embodiment 1, the packet fragmentation that will receive from cable network 1 with base station 2 is that the situation of wireless transmission block is that example is illustrated, but also can be communication system as shown in Figure 8, this communication system possesses base-station control apparatus 5 between cable network shown in Figure 11 and base station 2, the packet fragmentation that base-station control apparatus 5 will receive from cable network 1 is a plurality of sections of cutting apart and sends to base station 2 that base station 2 generates wireless transmission block according to a plurality of sections of cutting apart.
In this case, base-station control apparatus 5 is included the marginal identifier that is used to discern grouping in the section of cutting apart, and base station 2 utilizes this identifier to obtain the grouping size of a grouping according to a plurality of sections of cutting apart.
Use Fig. 9 Figure 12 that embodiments of the present invention 2 are described.In the execution mode 1 in front, illustrated that base station 2 will send to the communication of the down direction of mobile radio station 3 from the grouping that cable network 1 receives.In present embodiment 2, illustrate that mobile radio station 3 sends the communication of the up direction of grouping to cable network 1 via base station 2.In addition, the structure of the communication system of present embodiment 2 is because identical with the communication system of the execution mode shown in Figure 11 of front, so omit its explanation at this.
Fig. 9 is the block diagram that the structure relevant with the communication of up direction of mobile radio station 3 of communication system among the present invention is shown.In Fig. 9, mobile radio station 3 possesses: grouping generating unit 311, the grouping that generation should send; Packet buffer 312 cushions the grouping that is generated by grouping generating unit 311; Wireless transmission block generating unit 313 generates wireless transmission block according to the indication of control part 319 according to the grouping that is buffered in the packet buffer 312; Retransmit control part 314, with wireless transmission block unit carry out and base station 2 between repeating transmission control; Wireless transmission block sending part 317 sends the wireless transmission block that is generated by wireless transmission block generating unit 313; Send request sending part 320, base station 2 is sent request; Wireless signal sends acceptance division 316, has the signal between radiolink interface function and transmission reception and the base station 2; Retransmit control signal acceptance division 315, from the signal that receives by wireless signal transmission acceptance division 316, extract out and retransmit control information; Send indication acceptance division 318, from the signal that receives by wireless signal transmission acceptance division 316, extract out and send indication; And control part 319, according to the transmission of wireless transmission block being controlled, and control each structural element in the mobile radio station 3 generally by sending the transmission indication that indication acceptance division 318 extracts out.
Figure 10 is the block diagram that the structure relevant with the communication of up direction of base station 2 of communication system among the present invention is shown.In Figure 10, base station 2 possesses: wireless signal sends acceptance division 211, has the signal between radiolink interface function and transmission reception and the mobile radio station 3; Send request acceptance division 218, from the signal that receives by wireless signal transmission acceptance division 211, extract the request of transmission out; Wireless transmission block acceptance division 213 is extracted wireless transmission block out from the signal that is received by wireless signal transmission acceptance division 211; Retransmit control part 214, carry out and mobile radio station 3 between repeating transmission control; Retransmit control signal sending part 212, send by retransmitting the repeating transmission control information that control part 214 generates; Grouping reproducing unit 215 is according to the wireless transmission block regeneration grouping that is received by wireless transmission block acceptance division 213; Wire signal sending part 216 has the interface function of Wireline and will send to cable network 1 by the grouping of grouping reproducing unit 215 regeneration; Scheduler portion 219 according to by the transmission request that sends 218 extractions of request acceptance division and the arrival state of grouping, carries out the scheduling of the wireless transmission block of mobile radio station 3 transmissions and handles; And send indication sending part 217, will send to mobile radio station 3 as sending indication by the information of scheduler portion 219 scheduling.
Next, the action of the execution mode 2 of the communication system among the present invention is described.At first, action when having produced the grouping that should send in mobile radio station 3 is described.
When the never illustrated upper layer handling part of mobile radio station 3 received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.
The packet buffer 312 of mobile radio station 3 will cushion the advisory of new grouping and give control part 319.The notice that generates control part 319 has cushioned new grouping, has promptly produced the transmission request of the situation of the grouping that should send to base station 2, and exports to and send request sending part 320.Control part 319 is included the grouping size information of the size of expression grouping in sending request.The transmission request sending part 320 of mobile radio station 3 will send request via wireless signal transmission acceptance division 316 and send to base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send to affirmation amount aggregate-value and grouping size and send the mobile radio station 3 of the asking storage that is mapped.At this moment, carry out initialization and store sending to affirmation amount aggregate-value.
Next, illustrate that mobile radio station 3 sends the action of the wireless transmission block that constitutes grouping.When the wireless signal transmission acceptance division 316 via mobile radio station 3 received the transmission indication, the transmission that transmission indication acceptance division 318 will receive was indicated and is exported to control part 319.Control part 319 will be included in the wireless transport block size that sends in the indication and generate information and export to wireless transmission block generating unit 313 as wireless transmission block.
The wireless transmission block generating unit 313 of mobile radio station 3 generates information according to wireless transmission block, generates wireless transmission block according to the grouping that is buffered in the packet buffer 312, and the wireless transmission block that is generated is exported to repeating transmission control part 314.
The repeating transmission control part 314 of mobile radio station 3 is when receiving wireless transmission block, when having carried out retransmitting after the required processing, wireless transmission block is exported to wireless transmission block sending part 317, and wireless transmission block sending part 317 sends acceptance division 316 via wireless signal wireless transmission block is sent to base station 2.
The wireless transmission block acceptance division 213 of base station 2 is extracted wireless transmission block out and is exported to and retransmit control part 214 from the signal that receives via wireless signal transmission acceptance division 211.Retransmit control part 214 and judge whether normally received wireless transmission block.Under the situation that has normally received wireless transmission block, retransmit control part 214 wireless transmission block is exported to grouping reproducing unit 215.In addition, retransmit advisory that control part 214 will normally receive wireless transmission block and give and retransmit control signal sending part 212, and will comprise that the confirmation of sending to that is used to discern as the size of the information of the mobile radio station 3 in the transmission source of the wireless transmission block that normally receives and received wireless transmission block is notified to scheduler portion 219.
The grouping reproducing unit 215 of base station 2 sends to cable network 1 with the grouping of regenerating via wire signal sending part 216 after regenerating normally receiving all radio blocks that constitute grouping and dividing into groups.
The scheduler portion 219 of base station 2 is being informed to when normally having received wireless transmission block, upgrades and the be mapped affirmation amount of the sending to aggregate-value of storage of mobile radio station 3.
On the other hand, normally do not receiving under the situation of wireless transmission block, the repeating transmission control part 214 of base station 2 abandons wireless transmission block, and the advisory that will normally not receive wireless transmission block give to be retransmitted control signal sending part 212.
The repeating transmission control signal sending part 212 of base station 2 does not normally receive under the situation of wireless transmission block being informed to, with re-send request may as retransmitting control information, send acceptance division 211 via wireless signal and send to mobile radio station 3, normally received under the situation of wireless transmission block being informed to, to send to and confirm to send acceptance division 211 via wireless signal and send to mobile radio station 3 as retransmitting control information.
Whether the repeating transmission control part 314 of mobile radio station 3 is retransmitted with wireless transmission block unit according to the repeating transmission control information decision that receives via wireless signal transmission acceptance division 316 and repeating transmission control signal acceptance division 315.Retransmit control part 314 and retransmitting under the situation of control information for the re-send request may of the repeating transmission of the wireless transmission block of request, the retransmission process that the wireless transmission block that is requested to retransmit is put rules into practice.
Next, with reference to flow chart and Figure 12 of Figure 11, describe the action of the scheduler portion 219 of base station 2 in detail.Receiving (step S300) when sending request from sending request acceptance division 218,219 storages of scheduler portion and the mobile radio station 3 that has sent request the sending to affirmation amount aggregate-value and being included in the grouping size information (step S301) that sends in asking of initialization (" 0 " in this case) that be mapped.
Giving notice (step S302) when normally receiving wireless transmission block (sending to affirmation to mobile radio station 3) from retransmitting control part 214, the be mapped affirmation amount of the sending to aggregate-value stored of 219 pairs in scheduler portion and the mobile radio station 3 of sending to affirmation adds and sends to the affirmation amount and upgrade and send to affirmation amount aggregate-value (step S303).
At this, with reference to Figure 12, the variation of sending to affirmation amount aggregate-value the when grouping of paying close attention to from mobile radio station 3-1 is described.In Figure 12, wireless transmission block 63a～63c in wireless transmission block 62a on grouping 6 in the mobile radio station 3-1, wireless transmission block 61a, 61b-1～61b-3,61c, the radiolink, 62b-1～62b-3,62c, the base station 2 and the numerals in the grouping 64 in the base station 2 will divide into groups 6 grouping size normalization during for " 1 " each wireless transmission block or the size of grouping, the interior numeral of bracket of sending to affirmation amount aggregate-value and wireless transmission block 62a, 62b-1～62b-3,62c 6 the aggregate-values of sending to the affirmation amount when being normalized to " 1 " that will divide into groups.
Mobile radio station 3-1 will send request 65 and send to base station 2 when having generated the grouping 6 that should send.Base station 2 is receiving the request of sending 65 o'clock, will be made as " 0 " with the be mapped affirmation amount of the sending to aggregate-value of storage of mobile radio station 3-1.Base station 2 will send indication 66a, 66b-1～66b-3,66c sends to mobile radio station 3, wherein, send indication 66a, 66b-1～66b-3,66c and comprise that each predetermined scheduling time goes up according to the information (wireless transport block size information) of the size of the wireless transmission block of radiolink quality information decision and the information (wireless resource information) of handling assigned radio resource by scheduling.
Mobile radio station 3-1 is when receiving wireless transport block size information for the transmission of " 0.5 " indication 66a, as first the wireless transmission block that constitutes grouping 6, generate the wireless transmission block 61a of size " 0.5 ", and the wireless transmission block 61a that will generate sends to radiolink as wireless transmission block 62a.
The wireless transmission block 62a that base station 2 receives on the radiolink.Wireless transmission block 62a be owing to can normally be received as wireless transmission block 63a, so the affirmation amount of the sending to aggregate-value " 0.0 " of mobile radio station 3-1 added send to affirmation amount " 0.5 " and will send to affirmation amount aggregate-value and be updated to " 0.5 ".
Mobile radio station 3-1 is when receiving wireless transport block size information for the transmission of " 0.2 " indication 66b-1, as second the wireless transmission block that constitutes grouping 6, generate the wireless transmission block 61b-1 of size " 0.2 ", and the wireless transmission block 61b-1 that will generate sends to radiolink as wireless transmission block 62b-1.
The wireless transmission block 62b-1 that base station 2 receives on the radiolink.Base station 2 is not owing to normally receiving wireless transmission block 62b-1, so re-send request may is sent to mobile radio station 3-1.Owing to normally do not receive wireless transmission block 62b-1, the send to affirmation amount aggregate-value corresponding with mobile radio station 3-1 still is " 0.5 ".
Mobile radio station 3-1 is when receiving wireless transport block size information for the transmission of " 0.3 " indication 66c, as the 3rd (last in this case) the wireless transmission block that constitutes grouping 6, generate the wireless transmission block 61c of size " 0.3 ", and the wireless transmission block 61c that will generate sends to radiolink as wireless transmission block 62c.
The wireless transmission block 62c that base station 2 receives on the radiolink.Wireless transmission block 62c be owing to can normally be received as wireless transmission block 63c, so the send to affirmation amount aggregate-value " 0.5 " corresponding with mobile radio station 3-1 added send to affirmation amount " 0.3 " and will send to affirmation amount aggregate-value and be updated to " 0.8 ".
Mobile radio station 3-1 is when receiving wireless transport block size information for the transmission of " 0.2 " indication 66b-2, and second wireless transmission block of the grouping 6 that formation is requested to retransmit is that wireless transmission block 61b-2 sends to radiolink as wireless transmission block 62b-2.
The wireless transmission block 62b-2 that base station 2 receives on the radiolink.Base station 2 is not owing to normally receiving wireless transmission block 62b-2, so re-send request may is sent to mobile radio station 3-1.Owing to normally do not receive wireless transmission block 62b-2, the send to affirmation amount aggregate-value corresponding with mobile radio station 3-1 still is " 0.8 ".
Mobile radio station 3-1 is when receiving wireless transport block size information for the transmission of " 0.2 " indication 66b-3, and second wireless transmission block of the grouping 6 that formation is requested to retransmit is that wireless transmission block 61b-3 sends to radiolink as wireless transmission block 62b-3.
The wireless transmission block 62b-3 that base station 2 receives on the radiolink.Wireless transmission block 62b-3 is owing to can normally being received as wireless transmission block 63b, so the send to affirmation amount aggregate-value " 0.8 " corresponding with mobile radio station 3-1 added the affirmation amount " 0.2 " of sending to.Thus, send to affirmation amount aggregate-value and become " 1 ".That is, mean that the wireless transmission block 61a～61c that constitutes grouping 6 arrives.Therefore, base station 2 becomes under the situation of " 1 " sending to affirmation amount aggregate-value, is judged to be finishing receiving of all wireless transmission blocks of constituting grouping, the be mapped affirmation amount of the sending to aggregate-value of storage of deletion and mobile radio station 3-1.Then, use wireless transmission block 63a～63c regeneration grouping 64.
The scheduler portion 219 of base station 2 and above-mentioned concern are from the situation of the grouping of mobile radio station 3-1 similarly, carry out initialization receiving when sending request pair the affirmation amount of the sending to aggregate-value that is mapped with mobile radio station 3 from each mobile radio station 3, when normally receiving wireless transmission block, upgrade the pairing value of sending to affirmation amount aggregate-value.
Turn back to Figure 11, when having arrived predetermined scheduling time (step S304), scheduler portion 219 is according to deciding the priority of grouping with the be mapped affirmation amount of the sending to aggregate-value of storage of mobile radio station 3, and carries out according to the priority that is determined (step S305) handled in the scheduling of mobile radio station 3 distributing radio resource.In addition, scheduling is handled because identical with the action of the flowchart text of Fig. 6 of reference front, so omit its explanation at this.
As mentioned above, in present embodiment 2, the size that block length that base station 2 bases comprise from the transmission request that mobile radio station 3 receives and radiolink quality information decide wireless transmission block, and the affirmation amount of the sending to aggregate-value of aggregate-value of size that normally receives the wireless transmission block of the wireless transmission block that mobile radio station 3 sent according to expression decides priority, and, will comprise that the size of wireless transmission block and the transmission indication of wireless resource allocation send to mobile radio station 3 according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes mobile radio station 3 and should send.Mobile radio station 3 is cut apart the grouping that should send and is generated wireless transmission block according to being included in the wireless transport block size that sends in the indication, sends the wireless transmission block that the wireless resource allocation in the indication will generate and sends to base station 2 according to being included in.Thus, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, in present embodiment 2, the value of sending to affirmation amount aggregate-value is big more, establish priority high more, the preferential transmission belongs to the wireless transmission block of having obtained in the ratio grouping how of sending to affirmation, so abandon having to stop and belonging to the wireless transmission block of having obtained in the few grouping of the ratio of sending to affirmation under the situation of wireless transmission block and be dropped, the quantitative change of the wireless transmission block of can't assemble packets in base station 2 and abandoning is few, can effectively utilize frequency or improve throughput on the grouping rank.
In addition, in present embodiment 2, be that the situation of wireless transmission block is that example is illustrated with mobile radio station 3 with packet fragmentation, but also can be the system that between cable network shown in Figure 11 and base station 2, possesses base-station control apparatus 5 as shown in Figure 8.In this case, the wireless transmission block generating unit 313 of mobile radio station 3 generates the section of cutting apart of the packet fragmentation that should send, and the section of cutting apart that will generate is cut apart and is generated wireless transmission block, the grouping reproducing unit 215 of base station 2 is according to the wireless transmission block regeneration section of cutting apart and send to base-station control apparatus 5, and base-station control apparatus 5 gets final product according to the section of cutting apart regeneration grouping.
Use Figure 13 and Figure 14 that embodiments of the present invention 3 are described.In the execution mode 1 and 2 in front, obtained the priority of wireless transmission block of the many groupings of the ratio of sending to affirmation and distributing radio resource by improving formation, thereby reduce the amount of the wireless transmission block that can't regenerate grouping and be dropped, thereby effectively utilize frequency, and improved the throughput on the grouping rank.
But, owing to do not consider since dividing into groups from cable network 1 arrival base station 2 or since the delay allowed time that mobile radio station 3, has produced the grouping that should send, so before reaching the upper limit of retransmitting number of times, surpass under the situation of being detained the allowed time, can't reduce the wireless transmission block that is sent and become useless probability.
In order to improve such problem, in present embodiment 3, in the priority of the scheduling of wireless transmission block being distributed to Radio Resource, consider to be detained the allowed time.Particularly, after the setting of transmitter side device arrives from dividing into groups, obtain the delay allowed time till sending to affirmation, abandon the grouping that has surpassed the delay allowed time.In addition, will be made as the delay slack time owing to surpassing the time of being detained till the allowed time is dropped up to the grouping in being detained.
The structure of the communication system of present embodiment 3 is owing to identical with the communication system shown in Figure 1 of front, so omit its explanation at this.In addition, the base station 2 and the mobile radio station 3 of Fig. 2 of the base station 2 of the communication of down direction and the structure of mobile radio station 3 and front and execution mode 1 shown in Figure 3 are identical, the base station 2 and the mobile radio station 3 of Figure 10 of the base station 2 of the communication of up direction and the structure of mobile radio station 3 and front and execution mode 2 shown in Figure 9 are identical, so omit its explanation at this.
The execution mode 1 of present embodiment 3 and front or 2 distinctive points are the action with reference to the priority of the decision scheduling processing of the flowchart text of Fig. 6 of front, so in this communication with down direction is example, only explanation comprises the action that the scheduling of the decision action of priority is handled.
Figure 13 illustrates the example of the delay allowed time when paying close attention to some the grouping.In Figure 13,, arrive the beginning instrumentation from grouping and be detained the allowed time for the grouping of buffering in the packet buffer 202 of base station 2.Do not receive from mobile radio station 3 under the situation of sending to affirmation of all wireless transmission blocks that constitute grouping when arriving from grouping be detained in the allowed time, scheduler portion 208 abandons pairing grouping.Current time is approaching more to be abandoned constantly, is detained to allow and become more little remaining time.This delay allows that remaining time is more little, and scheduler portion 208 establishes priority to such an extent that highly more come wireless transmission block distributing radio resource.
With reference to the flow chart of Figure 14, the action of the scheduling processing of present embodiment 3 is described.Scheduler portion 208 allows remaining time and sends to affirmation amount aggregate-value according to delay and obtain priority (step S400) for constituting each the wireless transmission block that divides into groups.Particularly, use and be detained the counting of allowing remaining time and sending to these two priority indexs of affirmation amount aggregate-value, calculate the priority P total of each wireless transmission block by following formula.
Ptotal＝α×Pact+B×Pdelay
In addition, in following formula, Pact represents based on the priority of sending to affirmation amount aggregate-value, Pdelay represents to allow based on delay the priority of remaining time, α represents the coefficient (weight) based on the priority of sending to affirmation amount aggregate-value, and B represents the coefficient (weight) of allowing the priority of remaining time based on residual.Promptly, scheduler portion 208 becomes big order according to sending to affirmation amount aggregate-value, will be based on the priority decision De Genggao that sends to affirmation amount aggregate-value, allow the order that diminishes remaining time according to residual, will be based on the residual priority decision De Genggao that allow remaining time, will be to being weighted respectively and addition and the value that obtains is made as the priority of wireless transmission block based on the priority of sending to affirmation amount aggregate-value and based on residual priority of allowing remaining time.
The wireless transmission block that scheduler portion 208 will constitute the highest grouping of priority is chosen as process object piece (step S401).That is, the little wireless transmission block of value of the priority P total of each wireless transmission block that will calculate by following formula is made as high priority, selects the process object piece.
The residue (step S402) whether Radio Resource is arranged is judged by scheduler portion 208.208 pairs of wireless transmission block distributing radio resource of selecting as the process object piece (step S403) of scheduler portion are being arranged under the remaining situation of Radio Resource.
As mentioned above, in present embodiment 3, allow remaining time and send to affirmation amount aggregate-value according to the delay of the time of expression till and decide priority from current time to the moment that can be detained wireless transmission block, so can suppress to abandon the phenomenon of wireless transmission block owing to the delay allowed time that surpasses grouping, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, in present embodiment 3, allow remaining time and send to affirmation amount aggregate-value and decided priority according to delay, but also can by the radiolink quality information with send to affirmation amount aggregate-value or radiolink quality information, be detained the combination of allowing remaining time and sending to affirmation amount aggregate-value and decide priority.Under the situation of using the radiolink quality information, the radiolink quality information is represented the in good condition of circuit more, with priority establish high more getting final product.
Use Figure 15 that embodiments of the present invention 4 are described.In execution mode 1～3, use the affirmation amount of sending to, be detained and allow remaining time, decided the priority that is used for the wireless transmission block distributing radio resource that constitutes grouping.In present embodiment 4, use priority to control delivery quality.
The structure of the communication system of present embodiment 4 is owing to identical with the communication system shown in Figure 1 of front, so omit its explanation at this.In addition, the base station 2 and the mobile radio station 3 of Fig. 2 of the base station 2 of the communication of down direction and the structure of mobile radio station 3 and front and execution mode 1 shown in Figure 3 are identical, the base station 2 and the mobile radio station 3 of Figure 10 of the base station 2 of the communication of up direction and the structure of mobile radio station 3 and front and execution mode 2 shown in Figure 9 are identical, so omit its explanation at this.
Next, the corrective action of radiolink quality information is described.Scheduler portion 208 receives the radiolink quality information from radiolink quality information acceptance division 209.Scheduler portion 208 uses the affirmation amount of sending to, is detained and allows the priority that decides the wireless transmission block that constitutes grouping remaining time as explanation in the execution mode 1～3 of front.
The radiolink quality information is revised by the radiolink quality information corresponding with the high wireless transmission block of priority being added the value of regulation by scheduler portion 208.For example, the value of the radiolink quality information corresponding with the highest wireless transmission block of priority is added " 2 ", the value of the radiolink quality information corresponding with time high wireless transmission block of priority is added " 1 ".Thus, the radiolink quality information becomes " 6 " for the radiolink quality information of the highest wireless transmission block of " 4 " and priority, and the radiolink quality information becomes " 4 " for the radiolink quality information of the high wireless transmission block of " 3 " and priority second.Therefore, send the highest wireless transmission block of priority with the encoding rate of the modulation system of " 16QAM ", " 2/3 ", the transmitted power of " 20 ", send the high wireless transmission block of priority second with the transmitted power of the encoding rate of the modulation system of " 16QAM ", " 1/3 ", " 20 ".
Like this in present embodiment 4, add that by radiolink quality information the value of regulation revises the radiolink quality information to the high wireless transmission block of priority, and select delivery quality according to revised radiolink quality information, so priority is high more, can make the reception probability of successful of wireless transmission block high more, can reduce the amount of the wireless transmission block of can't assemble packets and abandoning, thereby can effectively utilize frequency or improve throughput on the grouping rank.
In addition, in present embodiment 4, the value of radiolink quality information is added that the value of regulation revised the radiolink quality information, but also can from the value of radiolink quality information, deduct the value of regulation and revise the radiolink quality information according to priority.In this case, from the minimum corresponding radiolink quality information of wireless transmission block of priority, order revise low according to priority gets final product.That is, relatively revising the radiolink quality information according to priority gets final product.
In addition, in present embodiment 4, delivery quality is made as modulation system, encoding rate or transmitted power, but also can utilizes the diversity effect in frequency, space.
In general communication system, between transmitter side and receiver side, retransmit control, but for the wireless transmission block that has surpassed the higher limit of retransmitting number of times, do not retransmit and abandon.Therefore, can not arrive receiver side owing to surpassed the wireless transmission block of retransmitting the higher limit of number of times, other wireless transmission blocks become useless such problem so existence can't be regenerated grouping.
In order to improve such problem, in execution mode 5, use to utilize and to send to number of times, be detained the priority of allowing decision remaining time, the higher limit of the repeating transmission number of times of wireless transmission block is controlled.In addition, the structure of the communication system of present embodiment 5 is owing to identical with the communication system shown in Figure 1 of front, so omit its explanation at this.In addition, the base station 2 and the mobile radio station 3 of Fig. 2 of the base station 2 of the communication of down direction and the structure of mobile radio station 3 and front and execution mode 1 shown in Figure 3 are identical, the base station 2 and the mobile radio station 3 of Figure 10 of the base station 2 of the communication of up direction and the structure of mobile radio station 3 and front and execution mode 2 shown in Figure 9 are identical, so omit its explanation at this.
Retransmitting control part 204 uses the higher limit of notified repeating transmission number of times to retransmit control.That is, retransmit the transmission number of times of control part 204 storages, surpassed at the repeating transmission number of times under the situation of the higher limit of retransmitting number of times, abandon wireless transmission block to the wireless transmission block of mobile radio station 3.
As mentioned above, in present embodiment 5, when sending according to a plurality of wireless transmission blocks of grouping generation, to retransmit the higher limit of number of times according to priority set greatlyyer, become big so belong to the higher limit of the repeating transmission number of times of having obtained the wireless transmission block in the ratio grouping how of sending to affirmation, reduced because wireless transmission block no show the mobile radio station 3 and wireless transmission block that can't regenerate grouping and sent to affirmation becomes useless probability, thereby can effectively utilize radiolink.
In addition, abandon under the situation of wireless transmission block having to stop, belonging to the wireless transmission block of having obtained in the few grouping of the ratio of sending to affirmation is dropped, the quantitative change of the wireless transmission block of can't assemble packets in mobile radio station 3 and abandoning is few, thereby can effectively utilize frequency or improve throughput on the grouping rank.
In addition, in present embodiment 5, communication with down direction is that example is illustrated, but under the situation of the communication of up direction, when scheduler portion 219 also can be with the communicating by letter of down direction similarly, determine the higher limit of the repeating transmission number of times of wireless transmission block according to priority, the higher limit of the repeating transmission number of times that determined is notified to mobile radio station 3, and use the higher limit of repeating transmission number of times of repeating transmission control part 314 notices of mobile radio station 3 to retransmit control.
In present embodiment 6, change the delivery quality of wireless transmission block according to the quantity of the wireless transmission block that constitutes grouping, remain the error rate of grouping constant.The structure of the communication system of present embodiment 6 is owing to identical with the communication system shown in Figure 1 of front, so omit its explanation at this.In addition, the base station 2 and the mobile radio station 3 of Fig. 2 of the base station 2 of the communication of down direction and the structure of mobile radio station 3 and front and execution mode 1 shown in Figure 3 are identical, the base station 2 and the mobile radio station 3 of Figure 10 of the base station 2 of the communication of up direction and the structure of mobile radio station 3 and front and execution mode 2 shown in Figure 9 are identical, so omit its explanation at this.
In present embodiment 6, only illustrate according to block length and wireless delivery quality information and decide the quantity (grouping cut apart number) of the wireless transmission block that constitutes grouping and the action of delivery quality.
Wireless transmission block sending part 207 uses scheduler portion 208 to handle assigned radio resource by the scheduling of above-mentioned execution mode 1～3, sends acceptance division 206 with modulation system, encoding rate or the transmitted power of notifying from scheduler portion 208 via wireless signal and sends the wireless transmission block that wireless transmission block generating unit 203 generates.
As mentioned above, in present embodiment 6,, selected to cut apart the size and the delivery quality of the wireless transmission block of grouping according to block length and radiolink quality information, even so under the situation of block length, radiolink mass change, the also deterioration of the error rate that can suppress to divide into groups.
In addition, in present embodiment 6, delivery quality is made as modulation system, encoding rate or transmitted power, but also can utilizes the diversity effect in frequency, space.
In addition, in present embodiment 6, carry out the selection of delivery quality index and packet fragmentation number in scheduler portion 208 from the moment that packet buffer 202 receives new grouping, but also can when receiving wireless transmission block, utilize the up-to-date radiolink quality information in this moment to obtain delivery quality index and packet fragmentation number.
And, in present embodiment 6, do not mention the transmission timing of divided each wireless transmission block, but, will concentrate transmission from the wireless transmission block that same packet fragmentation goes out in also can be during short time with low uncertainty of radiolink quality for the delivery quality index that maintains the moment decision that receives new when grouping and the correctness of packet fragmentation number.
With reference to Figure 17～Figure 19 embodiments of the present invention 7 are described.In the execution mode 1～6 in front, the situation that mobile radio station is connected with a stylobate station has been described, but in present embodiment 7, by improving the priority of the wireless transmission block of no show during to the handoff request that switches other base stations, thereby shorten switching delay time (carrying out constantly poor with the switching of reality constantly) till finishing sent to by the handoff request that the radiolink mass measurement obtains up to grouping from the base station of the current connection of mobile radio station.
Figure 17 is the figure of structure that the execution mode 7 of the communication system among the present invention is shown.In Figure 17, communication system possesses cable network 1, m (1＜m, m are natural number) stylobate station 2a (expression 2a-1～2a-m), n platform mobile radio station 3a (expression 3a-1～3a-n).Cable network 1 is connected by Wireline with base station 2a, base station 2a is connected by Wireline with mobile radio station 3a, mobile radio station 3a is via base station 2a and cable network 1, used the intercommunication mutually of grouping with fixed terminal (not shown), the mobile radio station on being connected cable network 1.In addition, mobile radio station 3a switches between the 2a of base station by moving.
In present embodiment 7, illustrate that base station 2a will send to the communication of the down direction of mobile radio station 3a from the grouping that cable network 1 receives.Figure 18 is the block diagram that the structure relevant with the communication of the down direction of the mobile radio station 3a shown in Figure 17 of front is shown.Appended the handoff request portion 308 that is used for to base station 2 request switchings on the relevant structure of communicating by letter of the down direction of the structure shown in Figure 3 and mobile radio station 3 execution mode 1 in front that communication shown in Figure 180 and down direction mobile radio station 3a is relevant.To having the additional prosign of structure division with the structure identical functions of communicating by letter relevant of the down direction of the shown in Figure 3 and mobile radio station 3 execution mode 1 of front, and the repetitive description thereof will be omitted.
Figure 19 is the block diagram that the structure relevant with the communication of the down direction of the base station 2a shown in Figure 17 of front is shown.Appended the switch control portion 210 that is used to carry out switching processing on the relevant structure of communicating by letter of the down direction of the structure shown in Figure 2 and base station 2 execution mode 1 in front that communication shown in Figure 19 and down direction base station 2a is relevant.To having the additional prosign of structure division with the structure identical functions of communicating by letter relevant of the down direction of the shown in Figure 2 and base station 2 execution mode 1 of front, and the repetitive description thereof will be omitted.
Switch control portion 210 is exported to scheduler portion 208 with the handoff request that receives when sending acceptance division 206 via wireless signal and receive handoff request from mobile radio station 3a.In addition, switch control portion 210 is used to carry out switching processing when receiving the switching execute permission from scheduler portion 208.
Next, the action of the execution mode 7 of the communication system among the present invention is described.Action when the execution mode 1 of present embodiment 7 and front or 3～6 distinctive points are only switched for mobile radio station 3a only illustrates and switches relevant action at this.
When having arrived the Measuring Time in each predetermined cycle, base station 2a in 308 pairs of current connections of the handoff request portion of mobile radio station 3a and with current communication in base station 2a in abutting connection with and can and the base station 2a that communicates of our station and the radiolink quality between our station measure.Handoff request portion 308 judges whether to carry out according to the radiolink quality of measuring switches.Using general conventional art to judge whether to carry out switches.For example, with current the connection in the radiolink quality of base station 2a be to exist below the predetermined threshold value and in the base station 2a that can communicate under the situation of the better base station 2a of the radiolink quality of the base station 2a in radiolink mass ratio and current the connection, be judged as to carry out and switch.Be judged as under the situation of carrying out switching, handoff request portion 308 sends acceptance division 301 via wireless signal handoff request is sent to this base station 2a.
When receiving handoff request, the switch control portion 210 of base station 2a is exported to scheduler portion 208 with the handoff request that receives.Scheduler portion 208 is in the moment that receives handoff request, gets the priority level initializing that constitutes at the wireless transmission block of undelivered of the undelivered grouping of the mobile radio station 3a that has sent handoff request higher.Thus, during the scheduling of carrying out in scheduling time is handled, do not rely on and send to affirmation amount aggregate-value, and become the highest, to wireless transmission block priority allocation Radio Resource at the mobile radio station 3a that has sent handoff request at the priority of the mobile radio station 3a that has sent handoff request.
In addition, the scheduler portion 208 of base station 2a will set than current delivery quality height at the delivery quality of the mobile radio station 3a that has sent handoff request.As delivery quality, use modulation system, encoding rate, transmitted power etc.For example, as modulation system, can set some among " 64QAM ", " 16QAM ", " QPSK ", and under the situation of the current modulation system of having set " 64QAM " to the mobile radio station 3a that has sent handoff request, scheduler portion 208 sets the modulation system of " 16QAM " or " QPSK ".In addition, as encoding rate, can be made as some in " 1/3 ", " 1/2 ", " 2/3 ", and under the situation of the current encoding rate of having set " 2/3 " to the mobile radio station 3a that has sent handoff request, scheduler portion 208 sets the encoding rate of " 1/3 " or " 1/2 ".In addition, for transmitted power, set the transmitted power bigger than current transmitted power.
The scheduler portion 208 of base station 2a will switch execute permission and export to switch control portion 210 when finishing at sending to of the grouping of the mobile radio station 3a that has sent handoff request.Switch control portion 210 begins to be used to carry out switching processing when receiving the switching execute permission.
As mentioned above, in present embodiment 7, when the handoff request that receives from mobile radio station 3a, do not rely on and send to affirmation amount aggregate-value, and the priority and/or the delivery quality that will constitute the wireless transmission block of undelivered of the grouping in the mobile radio station that has sent handoff request being sent are set higherly, carry out after the transmission of the grouping in the mobile radio station that has sent handoff request is sent finishes and switch, so can shorten the switching delay time, can before the radiolink deterioration, carry out the possibility of switching and uprise, can improve communication quality.
In addition, the quantity of the undelivered grouping of the down direction that between the base station, transmits can be cut down, the traffic in the transfer path between the base station can be cut down.
In addition, in present embodiment 7, being that example is illustrated to the communication that mobile radio station 3a sends the down direction of user data, but to base station 2a sends the communication of up direction of user data, also can similarly implement, and can obtain same effect from mobile radio station 3a from base station 2a.In this case, the handoff request portion 308 that possesses present embodiment 7 in the relevant function of the communication of the up direction of shown in Figure 9 and mobile radio station 3 execution mode 2 in front, the switch control portion 210 that possesses present embodiment 7 in the relevant function of the communication of the up direction of shown in Figure 10 and base station 2 execution mode 2 in front gets final product.
With reference to Figure 20 and Figure 21 embodiments of the present invention 8 are described.In present embodiment 8, the consideration switching delay allowed time implements to switch efficiently.The structure of the communication system of present embodiment 8 is because identical with the communication system of the execution mode 7 of front, so omit its explanation at this.The structure of the mobile radio station 3a of present embodiment 8 is identical with the mobile radio station 3a of the execution mode 7 of front, but in handoff request portion 308, except the function of the handoff request portion 308 of the execution mode 7 of front, also appended the function of prediction switching delay allowed time.
In addition, the structure of the base station 2a of present embodiment 8 is identical with the base station 2a of the execution mode 7 of front, but scheduler portion 208 is except the function of the scheduler portion 208 of the execution mode 7 of front, also appended following function: according to finishing required time by being included in sending to that switching delay allowed time in the handoff request and current traffic load situation etc. obtain, after the wireless transmission block of the pairing undelivered of grouping that has sent at the mobile radio station 3a that has sent handoff request, judge whether to carry out and switch.
Next, the action of the communication system of the execution mode 8 among the present invention is described.In addition, the communication system of the action of the communication system of present embodiment 8 and the execution mode of front 7 is roughly the same, distinctive points is, the handoff request portion 308 of mobile radio station 3a obtains switches the delay allowance time and is notified to base station 2a, the scheduler portion 208 of base station 2a dispatched according to the notified switching delay allowance time, so dissimilarity only is described.
At first, with reference to Figure 20, the action of the handoff request portion 308 of mobile radio station 3a is described.Figure 20 is the figure that the deterioration and the time relation of radiolink quality are shown.Become far or the wireless environment variation of base station 2a and mobile radio station 3a owing to move the distance of mobile radio station 2a and mobile radio station 3a because of mobile radio station 3a, as shown in figure 20, the radiolink quality between base station 2a and mobile radio station 3a is deterioration along with effluxion.Handoff request portion 308 when having arrived the Measuring Time in each predetermined cycle, to the base station 2a in the current connection and with current communication in base station 2a in abutting connection with and can and the base station 2a that communicates of our station and radiolink quality between our station measure.The radiolink quality of before current Measuring Time, measuring of handoff request portion 308 storing predetermined quantity.Handoff request portion 308 is being judged as (current time in Figure 20) when having asked switching, predicts according to the radiolink quality of measuring before current time of being stored and switches the delay allowance time.Particularly, obtain the degradation speed of radiolink quality according to the radiolink quality of being stored, under the situation of radiolink quality, obtain expression becomes the time till moment below the predetermined threshold value (value of the radiolink quality that can communicate) from current time to the radiolink quality the switching delay allowance time with the degradation speed deterioration of the radiolink quality obtained.Handoff request portion 308 sends the handoff request that comprises the switching delay allowance time of being obtained.
Next, with reference to Figure 21, the action of the scheduler portion 208 of base station 2a is described.Receiving from switch control portion 210 when comprising the handoff request of switching the delay allowance time, scheduler portion 208 is according to current traffic load situation and constitute data volume at the wireless transmission block of undelivered of the undelivered grouping of the mobile radio station 3a that has sent handoff request, estimates that sending to of undelivered grouping finish required time (step S501).
The sending to of 208 pairs of estimations of scheduler portion finished the switching delay allowance time that comprises in required time and the handoff request and compared.Result relatively, finish (step S502: "Yes"), promptly switching under the situation of the wireless transmission block of undelivered that can't all send the undelivered grouping in the delay allowance time under the situation of required time greater than the switching delay allowance time when sending to, even being judged as, scheduler portion 208 continues to send the wireless transmission block of undelivered, mobile radio station 3a also can't finish grouping before switching, and will to switch execute permission in order beginning immediately to switch and to export to switch control portion 210 (step S503).
Finish required time for switching (step S502: "No"), promptly switching under the situation of the wireless transmission block of undelivered that can all send the undelivered grouping in the delay allowance time under the situation below the delay allowance time when sending to, scheduler portion 208 is judged as mobile radio station 3a can finish grouping before switching, with the execution mode 7 of front similarly, with constitute at the priority of the wireless transmission block of undelivered of the undelivered grouping of the mobile radio station 3a that has sent handoff request and/or delivery quality set higher back operation dispatching (step S504).
As mentioned above, in present embodiment 8, mobile radio station 3a obtains the degradation speed of radiolink quality according to the radiolink quality, and predict the switching delay allowance time that can communicate with the current base station that is connected according to the speed of being obtained, transmission comprises the handoff request of the switching delay allowance time of being predicted, base station 2a obtains that required time is finished in required sending to for the wireless transmission block of undelivered that sends the grouping of formation in the mobile radio station that has sent handoff request being sent, to finish required time be under the situation below the switching delay allowance time that comprises in the handoff request sending to, do not rely on and send to affirmation amount aggregate-value, and the priority and/or the delivery quality that will constitute the wireless transmission block of undelivered of the grouping in the mobile radio station that has sent handoff request being sent are set higherly, carry out after the transmission of the grouping in the mobile radio station that has sent handoff request is sent finishes and switch, under sending to the situation of finishing the switching delay allowance time that required time comprises in greater than above-mentioned handoff request, carry out immediately and switch, can't finish the such state of affairs of grouping so can avoid making on the basis of switching delay.
In addition, in present embodiment 8, finish required time for switching under the situation below the delay allowance time sending to, with constitute at the priority of the wireless transmission block of undelivered of the undelivered grouping of the mobile radio station 3a that has sent handoff request and/or delivery quality set higher back operation dispatching, but under switching the situation that existence is had more than needed in the delay allowance time, get final product switching the wireless transmission block of undelivered that sends the undelivered grouping in the delay allowance time, so finish required time priority level initializing is got higher getting final product according to switching the delay allowance time and sending to.
Particularly, for example, switch under the situation of delay allowance time less than predetermined value priority level initializing is got higher, switch the delay allowance time for the situation more than the predetermined value under constant more preferably level, and utilize and send to affirmation amount aggregate-value corresponding priority level and dispatch.In addition, also can use and switch the delay allowance time and finish the poor of required time with sending to.Thus, the priority of other mobile radio stations of switching of request can be owing to handoff request step-down unreasonably, can prevent to lose significantly the phenomenon of the fairness of each mobile radio station.
In the execution mode 2 in front, in the communication of up direction, the scheduler portion 219 of base station 2 is giving notice when normally having received wireless transmission block from retransmitting control part 214, upgrade the affirmation amount of the sending to aggregate-value that is mapped and stores with mobile radio station 3, and dispatch according to the transmission amount of the sending to aggregate-value after upgrading.
In present embodiment 9,3 pairs of mobile radio stations are sent to affirmation amount aggregate-value and are managed, 2 receiving expression when normally having received sending to of wireless transmission block and confirming from the base station, mobile radio station 3 upgrades to be sent to affirmation amount aggregate-value and is notified to base station 2, and the scheduler portion 219 of base station 2 dispatches according to the notified affirmation amount of sending to aggregate-value.
In addition, the communication system of present embodiment 9 is because identical with the communication system of the execution mode shown in Figure 11 of front, so omit its explanation at this.In addition, the mobile radio station 3 and the base station 2 of Fig. 9 of the mobile radio station 3 of present embodiment 9 and base station 2 and front and execution mode 2 shown in Figure 10 are identical, but its difference is: the affirmation amount of the sending to aggregate-value of the control part of mobile radio station 3 319 storage our stations 2 is receiving expression and has normally received to upgrade when sending to of wireless transmission block confirmed and send to affirmation amount aggregate-value from the base station; The control part 319 of mobile radio station 3 to predetermined transmission request report carry out and will send to the control that affirmation amount aggregate-value sends to base station 2 regularly the time.
Next, the action of the execution mode 9 of the communication system among the present invention is described.At first, illustrate that mobile radio station 3 sends to affirmation amount aggregate-value, the action that dispatch base station 2 to base station 2 notice.
When the never illustrated upper layer handling part of mobile radio station 3 received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.312 pairs of groupings of the packet buffer of mobile radio station 3 cushion.
The control part 319 of mobile radio station 3 arrives predetermined transmission request report regularly the time, generates the transmission request that comprises the affirmation amount of the sending to aggregate-value stored and grouping size information, and the transmission request that will generate is exported to send and asked sending part 320.Transmission request sending part 320 will send request via wireless signal sending part 316 and send to base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send to affirmation amount aggregate-value and grouping size information and send be mapped storage of the mobile radio station 3 of asking.
When having arrived predetermined scheduling time, the scheduler portion 219 of base station 2 according to and the be mapped priority of the affirmation amount of sending to aggregate-value decision grouping of storage of mobile radio station 3, and carry out according to the priority that is determined the scheduling of mobile radio station 3 distributing radio resource handled.In addition, scheduling is handled because identical with the action of the flowchart text of Fig. 6 of reference front, so omit its explanation at this.Send indication sending part 217 and will send indication and send to each mobile radio station 3, comprise in this transmissions indication that scheduler portion 219 is according to the information (wireless transport block size information) of the size of the wireless transmission block of radiolink quality information and the decision of grouping size information and by dispatching the information (wireless resource information) of processing assigned radio resource.
In addition, mobile radio station 3 also can cover the grouping size as object in the request of transmission, and the scheduler portion 219 of base station 2 is for sending to the identical mobile radio station 3 of affirmation amount aggregate-value, so that the big mobile radio station 3 preferential modes of grouping size are dispatched.
Next, illustrate that mobile radio station 3 sends the action of the wireless transmission block that constitutes grouping.When the wireless signal transmission acceptance division 316 via mobile radio station 3 received the transmission indication, the transmission that transmission indication acceptance division 318 will receive was indicated and is exported to control part 319.Control part 319 will send the wireless transport block size that comprises in the indication and generate information and export to wireless transmission block generating unit 313 as wireless transmission block.
The wireless transmission block generating unit 313 of mobile radio station 3 generates information according to wireless transmission block, generates wireless transmission block according to the grouping that is buffered in the packet buffer 312, and the wireless transmission block that will generate is exported to repeating transmission control part 314.
After the required processing wireless transmission block is exported to wireless transmission block sending part 317 when the repeating transmission control part 314 of mobile radio station 3 has carried out retransmitting when receiving wireless transmission block, wireless transmission block sending part 317 sends acceptance division 316 via wireless signal wireless transmission block is sent to base station 2.
The wireless transmission block acceptance division 213 of base station 2 is extracted wireless transmission block out and is exported to and retransmit control part 214 from the signal that receives via wireless signal transmission acceptance division 211.Retransmit control part 214 and judge whether normally received wireless transmission block.Under the situation that has normally received wireless transmission block, retransmit control part 214 wireless transmission block is exported to grouping reproducing unit 215.In addition, retransmit control part 214 and will normally receive the advisory of wireless transmission block to retransmitting control signal sending part 212.
The grouping reproducing unit 215 of base station 2 sends to cable network 1 with the grouping of regenerating via wire signal sending part 216 after the grouping that normally receives all wireless transmission blocks that constitute grouping is regenerated.
On the other hand, normally do not receiving under the situation of wireless transmission block, the repeating transmission control part 214 of base station 2 abandons wireless transmission block, and the advisory that will normally not receive wireless transmission block give to be retransmitted control signal sending part 212.
The repeating transmission control signal sending part 212 of base station 2 is being informed under the situation that does not normally receive wireless transmission block, re-send request may is sent to mobile radio station 3 as retransmitting control information via wireless signal transmission acceptance division 211, be informed under the situation that has normally received wireless transmission block, will sending to affirmation and send to mobile radio station 3 via wireless signal transmission acceptance division 211 as retransmitting control information.
The repeating transmission control part 314 of mobile radio station 3 determines whether retransmitting with wireless transmission block unit according to the repeating transmission control information that receives via wireless signal transmission acceptance division 316 and repeating transmission control signal acceptance division 315.Retransmit control part 314 and retransmitting under the situation of control information for the re-send request may of the repeating transmission of the wireless transmission block of request, the retransmission process that the wireless transmission block that is requested to retransmit is put rules into practice.
Giving notice when normally receiving the situation (mobile radio station 3 receives the situation of sending to affirmation) of wireless transmission block by base station 2 from retransmitting control part 314, the affirmation amount of the sending to aggregate-value that 319 pairs of control parts are stored adds to be sent to the affirmation amount and upgrades and send to affirmation amount aggregate-value.Receiving under the situation of sending to affirmation, carry out initialization to sending to affirmation amount aggregate-value for all wireless transmission blocks that constitute certain grouping.
As mentioned above, in present embodiment 9, the size that block length that base station 2 bases comprise from the transmission request that mobile radio station 3 receives and radiolink quality information decide wireless transmission block, and the 2 affirmation amount of the sending to aggregate-values of aggregate-value of having obtained the size of the wireless transmission block of sending to affirmation decide priority from the base station according to sending the expression that comprises in the request, according to the wireless transmission block distributing radio resource of the priority that is determined, will comprise that the size of wireless transmission block and the transmission indication of wireless resource allocation send to mobile radio station 3 to the grouping that constitutes mobile radio station 3 and should send.Mobile radio station 3 is cut apart the grouping that should send according to the wireless transport block size that comprises in the transmission indication and is generated wireless transmission block, and the wireless transmission block that will generate according to the wireless resource allocation that comprises in the transmission indication sends to base station 2.Promptly, 3 pairs of mobile radio stations are sent to affirmation amount aggregate-value and are managed, 2 receiving expression and normally receive sending to of wireless transmission block when confirming from the base station, mobile radio station 3 upgrades to be sent to affirmation amount aggregate-value and is notified to base station 2, and dispatch according to the notified affirmation amount of sending to aggregate-value base station 2.Thus, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, because 3 pairs of mobile radio stations are sent to affirmation amount aggregate-value and are managed and be notified to base station 2, even so producing the affirmation under the situation of the mistake that transmits from base station 2 to sending to of mobile radio station 3 notices, can in the affirmation amount of the sending to aggregate-value of delivering to affirmation amount aggregate-value and dispatching office identification of reality, not produce difference yet, can use the correct affirmation amount of sending to aggregate-value to dispatch.
In addition, receive under the situation that sends indication, also can select, and generate wireless transmission block according to the data in this logic channel based on the high logic channel of priority of the affirmation amount of the sending to aggregate-value of being stored with the grouping size information at mobile radio station 3.
In addition, as record in the execution mode 3 of front, scheduler portion 219 also can consider " remaining time is allowed in delay ".In this case, from mobile radio station 3 with " remaining time is allowed in delay " with sending to affirmation amount aggregate-value and the grouping size information is notified to base station 2 and gets final product.
Use Figure 22～Figure 26 that embodiments of the present invention 10 are described.In present embodiment 10, the situation of communication system applications in 3gpp Long TermEvolution with the execution mode 9 of front is described.At first, wave point from mobile radio station 3 to base station 2 notices that send to affirmation amount aggregate-value and grouping size information from is described.Sending to affirmation amount aggregate-value is the aggregate-value of having obtained the size of the wireless transmission block of sending to affirmation, the interior ratio of sending to affirmation that obtained of promptly dividing into groups, and the grouping size is the size that becomes the grouping of object.Below, will send to affirmation amount aggregate-value and be generically and collectively referred to as fragmentation state (Segmentation Status) with the grouping size.
In 3gpp Long Term Evolution, the buffer state reports (Buffer Status Report) of the state of the transmission buffer of reporting mobile radio station is arranged.Mobile radio station 3 is used as the request of transmission with this buffer state reports, and data total amount and the fragmentation state of putting aside the grouping in packet buffer 312 is notified to base station 2.
Particularly, arrive predetermined transmission request report regularly the time, control part 319 will put aside grouping packet buffer 312 in the data total amount, send to affirmation amount aggregate-value and grouping size and be notified to transmission and ask sending part 320.Then, send request sending part 320 according to notified data total amount, send to affirmation amount aggregate-value and the grouping size generates buffer state reports, and the buffer state reports that generates sent acceptance division 316 via wireless signal send to base station 2.The transmission request acceptance division 218 of base station 2 is extracted fragmentation state out and is exported to scheduler portion 219 when receiving buffer state reports via wireless signal transmission acceptance division 211 from buffer state reports.
In addition, mobile radio station 3 can be the situation of the grouping that existence should send in mobile radio station 3 regularly with the transmission request report that buffer state reports sends to base station 2, also can be each predetermined cycle, also can be the situation that segmentation has taken place.In addition, Yu Ding cycle can also depend on by the maximum wireless transport block size of base station 2 appointments and stipulate.
In addition, buffer state reports can be notified with a plurality of logic channel units in the mobile radio station 3, also can only notify specific channel (for example high channel of priority), also a plurality of logic channels can be concentrated and notify with mobile radio station 3 units.
In addition, under will sending to the big or small situation about being contained in the buffer state reports of affirmation amount aggregate-value and grouping, if will send to the value former state ground of affirmation amount aggregate-value and grouping size comprises, then need one more than the byte, but do not have under the situation of the data (not existing by the data of segmentation) of savings in packet buffer 312, the zone of the buffer state reports of memory segment state is wasted.In order to eliminate this waste, the control bit that expression has or not fragmentation state also can be in buffer state reports be set in order to cut down bit number.In addition, in that a plurality of logic channels are concentrated and generated under the situation of buffer state reports,, control bit public in the logic channel then is set in buffer state reports gets final product if do not exist by the data of segmentation for any one logic channel wherein.
And, in order to cut down the bit number of fragmentation state, also can be as Figure 22 and shown in Figure 23, the value of affirmation amount aggregate-value and grouping size represented to send in index of reference.Figure 22 is the figure that an example when sending to affirmation amount aggregate-value and carry out indexation is shown.In Figure 22, SS1 represents to send to affirmation amount aggregate-value, index when section is not existed is made as " 0 ", will send to affirmation amount aggregate-value in this wise as index of reference " 1 " expression " 0%＜send to affirmation amount aggregate-value≤10% ", index of reference " 2 " expression " 10%＜send to affirmation amount aggregate-value≤20% ", index of reference " 3 " expression " 20%＜send to affirmation amount aggregate-value≤30% ", index of reference " 4 " expression " 30%＜send to affirmation amount aggregate-value≤40% " and be made as 10% and come at interval to be mapped with index.Thus, can use four bits to represent if represent with true value then need the affirmation amount of the sending to aggregate-value of seven bits.
In addition, Figure 23 is the figure that an example the when size of dividing into groups carried out indexation is shown.In Figure 23, SS2 represents the grouping size, is made as 100 byte interval as index of reference " 0 " expression " 0 byte＜grouping size≤100 bytes ", index of reference " 1 " expression " 100 bytes＜grouping size≤200 bytes ", index of reference " 2 " expression " 200 bytes＜grouping size≤300 bytes ", index of reference " 3 " expression " 300 bytes＜grouping size≤400 bytes " size of will dividing into groups in this wise and comes to be mapped with index.Thus, can use four bits to represent if represent with true value then need blocked byte number more than 11 bits.
Figure 24 is with the figure of an example of the form of the MAC-e PDU of the MAC-e PDU that puts down in writing among 3gpp TS25.321 expansion in order to transmit buffer state reports.In Figure 24, extended MAC-e PDU comprises: the field of MAC-es PDU number (n (n is a natural number) is individual in this case), and this field is made up of the DDI field of the channel id of preserving corresponding MAC-es PDU and size and the N field of preserving the number of corresponding MAC-es PDU; Preserve the DDI that expression has or not the information of schedule information
0Field; N MAC-es PAD field; Preserve the SI field of schedule information; And the Padding field of preserving filling.The SI field comprises: UPH (UE Power Headroom, the subscriber equipment power headroom) field of residual value of preserving the transmitted power of mobile radio station 3; Preserve TEBS (Total E-DCH Buffer Status, the total E-ECH buffer state) field of the total amount of all buffers in the mobile radio station 3; Preserve HLBS (Highest priority Logical channel Buffer Status, the highest priority logical channel buffer state) field of data volume of the buffer of the highest channel id of priority; Preserve HLID (Highest priority Logical channel ID, the highest priority logical channel ID) field of the highest channel id of priority; Preserve the affirmation amount of the sending to aggregate-value field of sending to affirmation amount aggregate-value; And the packet size field of preserving the grouping size.By using this extended MAC-e PDU, fragmentation state can be notified to base station 2 from mobile radio station 3.
In addition, more than illustrated to be used for reporting the situation of fragmentation state for the buffer state reports of base station 2 status report of the packet buffer 312 (transmission buffer) of mobile radio station 3, but also can not use buffer state reports and the control information (MAC Control PDU) of using the MAC layer regularly reports to base station 2 with fragmentation state in report independently.
Figure 25 be when when transmitting buffer state reports, using MAC Control PDU with 3gpp TS25.321 in the figure of another example of structure of form of MAC-e PAD of the MAC-e PDU expansion put down in writing.In Figure 25, extended MAC-e PAD comprises: preserving the identification follow-up is the data message or the D/C field of the information of control information; The field of the number of MAC-es PDU (n (n is a natural number) is individual in this case), this field is made up of the DDI field of the channel id of preserving corresponding MAC-es PDU and size and the N field of preserving the number of corresponding MAC-es PDU; Preserve the DDI that expression has or not the information of schedule information
0Field; N MAC-es PAD field; Preserve the MAC-e PDU field of the control information of MAC layer; And the Padding field of preserving filling.MAC-e PDU field comprises n field, and each field of this n field is made up of the type field of the kind of the MAC Control PDU that preserves corresponding Value, the Length field of preserving the length of corresponding Value, the Value field of preserving the MAC control information.When the transmission request sending part 320 of mobile radio station 3 is preserved fragmentation state (sending to affirmation amount aggregate-value and grouping size) in the Value field, in the type field, preserve " SSTAT " includes the meaning of fragmentation state as expression kind, the transmission request acceptance division 218 of base station 2 is preserved in the type field under the situation of " SSTAT ", preserve fragmentation state in the Value field that is identified as in correspondence, thereby fragmentation state can be notified to base station 2 from mobile radio station 3.
Next, interlayer interface is described.Base station 2, mobile radio station 3 are generally realized each function by layer, exchange message between layer and carry out the processing of each layer.At this, explanation is at RLC (RadioLink Control, Radio Link control) layer and MAC (Medium Access Control, media interviews control) information that transmits between the layer, wherein, rlc layer is realized utilizing control, the segment processing of the packet buffer 312 that the control part 319 of mobile radio station 3 carries out and is utilized and retransmit the retransmission process that control part 314 is carried out, the MAC layer utilizes control part 319 to notify following information processing, and promptly scheduling processing or the required information of wireless transmission control and treatment are realized in base station 2.
Between rlc layer and MAC layer, send to affirmation amount aggregate-value and grouping size.That is, between rlc layer and MAC layer, also exchange fragmentation state in the above-mentioned wave point.Between rlc layer and MAC layer, fragmentation state also can be notified with a plurality of logic channel units in the mobile radio station 3, also can only notify specific channel (for example high channel of priority), also a plurality of logic channels can be concentrated and notify with mobile radio station 3 units.
In addition, the notice of fragmentation state is regularly reported regularly similarly with the request of transmission, also can be the situation of the grouping that existence should send in mobile radio station 3, also can be each cycle of being scheduled to, also can be the situation that segmentation has taken place.
Figure 26 illustrates the rlc layer of 3gpp TS25.321 expansion and the figure of convey a message (primitive) between the MAC layer.In Figure 26,, defined request (Request), indication (Indication), response (Response) and confirmed (Confirm) as parameter (Parameter).Request (Request) as MAC-DATA, can enumerate data (Data), BO (Buffer Occupancy, buffer occupation rate), UE-ID (subscriber equipment (User Equipment) identifier), type indication (type Indicator), RLC entity information (RLC Entity Info), fragmentation state (Segmentation Status), as the indication (Indication) of MAC-DATA, can enumerate data (Data), No_TB (transmission block (Transport Block) sequence number), TD (Note), and mistake indication (Error Indication).In addition, indication (Indication) as MAC-STATUS, can enumerate No_PDU (Packet Data Unit (Packet Data Unit) sequence number), PDU_Size (Packet Data Unit (Packet Data Unit) size), Tx Status and Status_Report_REQ, response (Response) as MAC-STATUS, can enumerate BO (Buffer Occupancy, buffer occupation rate) and RLC entity information (RLC Entity Info).That is, the MAC layer has been appended fragmentation state (Segmentation Status) the request (Request) of parameter (Parameter) from rlc layer.
As mentioned above, in present embodiment 10, used buffer state reports as sending request, as conveying a message of interlayer 3gpp TS25.321 expansion has been comprised fragmentation state in the request (Request) of parameter (Parameter), so need not to change significantly in the past wave point, interlayer interface, and the information that can pass on dispatching office to need.
In the execution mode 9 in front, 3 pairs of mobile radio stations are sent to affirmation amount aggregate-value and are managed, 2 receiving expression when normally having received sending to of wireless transmission block and confirming from the base station, mobile radio station 3 upgrades to be sent to affirmation amount aggregate-value and is notified to base station 2, the scheduler portion 219 of base station 2 dispatches according to the notified affirmation amount of sending to aggregate-value, but in present embodiment 11, substituted service affirmation amount aggregate-value is described and uses the situation that sends the data volume aggregate-value.
In addition, the communication system of present embodiment 11 is because identical with the communication system of the execution mode shown in Figure 11 of front, so omit its explanation at this.In addition, the mobile radio station 3 and the base station 2 of Fig. 9 of the mobile radio station 3 of present embodiment 11 and base station 2 and front and execution mode 2 shown in Figure 10 are identical, but its difference is: the aggregate-value of transmission data volume of the control part 319 storage our stations of mobile radio station 3, and renewal has sent the data volume aggregate-value after sending wireless transmission block; And the control part 319 of mobile radio station 3 to predetermined transmission request report carry out and will send the control that the data volume aggregate-value sends to base station 2 regularly the time.At this, having sent the data volume aggregate-value is the data volume that mobile radio station 3 sends, i.e. the aggregate-value of the size of the wireless transmission block of mobile radio station 3 transmissions.
Next, the action of the execution mode 11 of the communication system among the present invention is described.At first, illustrate that mobile radio station 3 has sent data volume aggregate-value, the action that dispatch base station 2 to base station 2 notices.
When the never illustrated upper layer handling part of mobile radio station 3 received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.312 pairs of groupings of the packet buffer of mobile radio station 3 cushion.
The control part 319 of mobile radio station 3 arrives predetermined transmission request report regularly the time, generate to comprise the transmission request that sends data volume aggregate-value and grouping size information of being stored, and the transmission request that will generate is exported to send and asked sending part 320.Transmission request sending part 320 will send request via wireless signal transmission acceptance division 316 and send to base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send data volume aggregate-value and grouping size information and send the mobile radio station 3 of the asking storage that is mapped.
When having arrived predetermined scheduling time, the scheduler portion 219 of base station 2 according to and mobile radio station 3 be mapped storage send the priority that the data volume aggregate-value decides grouping, and carry out according to the priority that is determined the scheduling of mobile radio station 3 distributing radio resource handled.In addition, scheduling is handled because identical with the action of the flowchart text of Fig. 6 of reference front, so omit its explanation at this.Transmission indication sending part 217 sends to each mobile radio station 3 according to the information (wireless transport block size information) of the size of the wireless transmission block of radiolink quality information and the decision of grouping size information and by the information that the scheduling processing is dispatched as sending indication with scheduler portion 219.
In addition, mobile radio station 3 also can be included in the grouping size as object in the request of transmission, and the scheduler portion 219 of base station 2 is for sending the identical mobile radio station of data volume aggregate-value 3, so that the big mobile radio station 3 preferential modes of grouping size are dispatched.
Next, illustrate that mobile radio station 3 sends the action of the wireless transmission block that constitutes grouping.When the wireless signal transmission acceptance division 316 via mobile radio station 3 received the transmission indication, the transmission that transmission indication acceptance division 318 will receive was indicated and is exported to control part 319.Control part 319 will send the wireless transport block size that comprises in the indication and generate information and export to wireless transmission block generating unit 313 as wireless transmission block.In addition, 319 pairs of control parts are stored sends the data volume aggregate-value and adds and send the wireless transport block size that comprises in the indication and upgrade and send the data volume aggregate-value.Control part 319 all is made as under the situation about having sent at the wireless transmission block that will constitute certain grouping, carries out initialization to sending the data volume aggregate-value.
The wireless transmission block generating unit 313 of mobile radio station 3 generates information according to wireless transmission block, generates wireless transmission block according to the grouping that is buffered in the packet buffer 312, and the wireless transmission block that will generate is exported to repeating transmission control part 314.
After the required processing wireless transmission block is exported to wireless transmission block sending part 317 when the repeating transmission control part 314 of mobile radio station 3 has carried out retransmitting when receiving wireless transmission block, wireless transmission block sending part 317 sends acceptance division 316 via wireless signal wireless transmission block is sent to base station 2.
The wireless transmission block acceptance division 213 of base station 2 is extracted wireless transmission block out and is exported to and retransmit control part 214 from the signal that receives via wireless signal transmission acceptance division 211.Retransmit control part 214 and judge whether normally received wireless transmission block.Under the situation that has normally received wireless transmission block, retransmit control part 214 wireless transmission block is exported to grouping reproducing unit 215.In addition, retransmit control part 214 and will normally receive the advisory of wireless transmission block to retransmitting control signal sending part 212.
The grouping reproducing unit 215 of base station 2 sends to cable network 1 with the grouping of regenerating via wire signal sending part 216 after the grouping that normally receives all wireless transmission blocks that constitute grouping is regenerated.
On the other hand, normally do not receiving under the situation of wireless transmission block, the repeating transmission control part 214 of base station 2 abandons wireless transmission block, and the advisory that will normally not receive wireless transmission block give to be retransmitted control signal sending part 212.
The repeating transmission control signal sending part 212 of base station 2 is being informed under the situation that does not normally receive wireless transmission block, re-send request may is sent to mobile radio station 3 as retransmitting control information via wireless signal transmission acceptance division 211, be informed under the situation that has normally received wireless transmission block, will sending to affirmation and send to mobile radio station 3 via wireless signal transmission acceptance division 211 as retransmitting control information.
The repeating transmission control part 314 of mobile radio station 3 determines whether retransmitting with wireless transmission block unit according to the repeating transmission control information that receives via wireless signal transmission acceptance division 316 and repeating transmission control signal acceptance division 315.Retransmit control part 314 and retransmitting under the situation of control information for the re-send request may of the repeating transmission of the wireless transmission block of request, the retransmission process that the wireless transmission block that is requested to retransmit is put rules into practice.
As mentioned above, in present embodiment 11, the size that block length that base station 2 bases comprise from the transmission request that mobile radio station 3 receives and radiolink quality information decide wireless transmission block, and decide priority to the aggregate-value of transmission data volume of the aggregate-value of the size of the wireless transmission block of base station 2 transmissions according to sending the expression mobile radio station 3 that comprises in the request, according to the wireless transmission block distributing radio resource of the priority that is determined, will comprise that the size of wireless transmission block and the transmission indication of wireless resource allocation send to mobile radio station 3 to the grouping that constitutes mobile radio station 3 and should send.Mobile radio station 3 is cut apart the grouping that should send according to the wireless transport block size that comprises in the transmission indication and is generated wireless transmission block, and the wireless transmission block that will generate according to the wireless resource allocation that comprises in the transmission indication sends to base station 2.That is, mobile radio station 3 will be represented to be notified to base station 2 to the aggregate-value of transmission data volume of the aggregate-value of the size of the wireless transmission block of base station 2 transmissions, and dispatch according to the notified aggregate-value of transmission data volume base station 2.Thus, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, under the situation of communication system applications in 3gpp Long TermEvolution with present embodiment 11, replacement is applied to the affirmation amount of the sending to aggregate-value of the execution mode 10 among the 3gpp LongTerm Evolution with the execution mode 9 of front, uses to have sent the data volume aggregate-value and get final product.Thus, need not to change significantly in the past wave point, interlayer interface, and the information that can pass on dispatching office to need.
In addition, receive under the situation that sends indication, also can select based on the high logic channel of being stored of the priority that sends the data volume aggregate-value, and generate wireless transmission block according to the data in this logic channel at mobile radio station 3.
And as record in the execution mode 3 of front, scheduler portion 219 also can consider " remaining time is allowed in delay ".In this case, from mobile radio station 3 " remaining time is allowed in delay " is notified to base station 2 and gets final product with sending the data volume aggregate-value.
In the execution mode 2 in front, in the communication of up direction, the scheduler portion 219 of base station 2 is giving notice when normally having received wireless transmission block from retransmitting control part 214, upgrade the affirmation amount of the sending to aggregate-value that is mapped and stores with mobile radio station 3, and dispatch according to the transmission amount of the sending to aggregate-value after upgrading.
In present embodiment 12, in the communication of up direction, the scheduler portion 219 of base station 2 is not to use and has confirmed the sending to of sending to affirmation amount aggregate-value of wireless transmission block and be to use to send the data volume aggregate-value and dispatch, wherein, sent the data volume aggregate-value be by scheduling handle distributing radio resource allow the wireless transmission block that mobile radio station 3 sends size aggregate-value, be mobile radio station 3 according to the aggregate-value of the size that sends the wireless transmission block that indication sends.
In addition, the communication system of present embodiment 12 is because identical with the communication system of the execution mode shown in Figure 11 of front, so omit its explanation at this.In addition, the Fig. 9 of the mobile radio station 3 of present embodiment 12 and base station 2 and front and the mobile radio station 3 and the base station 2 of the execution mode shown in Figure 10 2 are identical, but its difference is, the scheduler portion 219 of base station 2 is giving notice when normally not receiving wireless transmission block from retransmitting control part 214, not to upgrade the affirmation amount of the sending to aggregate-value that is mapped and stores with mobile radio station 3, but to adding having carried out wireless transport block size that scheduling handles distribution by scheduling after handling and upgrade and send the data volume aggregate-value with the be mapped data volume aggregate-value that sends of storage of mobile radio station 3, in scheduling is handled next time, use this to send the data volume aggregate-value and come distributing radio resource.
Next, the action of the execution mode 12 of the communication system among the present invention is described.At first, action when having produced the grouping that should send in mobile radio station 3 is described.
When the never illustrated upper layer handling part of mobile radio station 3 received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.
The packet buffer 312 of mobile radio station 3 will cushion the advisory of new grouping and give control part 319.Control part 319 generate be used to notify the situation that cushioned new grouping, promptly produced the grouping that should send to base station 2 situation the transmission request and export to and send request sending part 320.Control part 319 comprises the grouping size information of the size of expression grouping in sending request.The transmission request sending part 320 of mobile radio station 3 will send request via wireless signal transmission acceptance division 316 and send to base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send data volume aggregate-value and grouping size and send the mobile radio station 3 of the asking storage that is mapped.Carry out initialization and store sending the data volume aggregate-value this moment.
Next, illustrate that mobile radio station 3 sends the action of the wireless transmission block that constitutes grouping.When the wireless signal transmission acceptance division 316 via mobile radio station 3 received the transmission indication, the transmission that transmission indication acceptance division 318 will receive was indicated and is exported to control part 319.Control part 319 will send the wireless transport block size that comprises in the indication and generate information and export to wireless transmission block generating unit 313 as wireless transmission block.
The wireless transmission block generating unit 313 of mobile radio station 3 generates information according to wireless transmission block, generates wireless transmission block according to the grouping that is buffered in the packet buffer 312, and the wireless transmission block that will generate is exported to repeating transmission control part 314.
Processing required when the repeating transmission control part 314 of mobile radio station 3 has carried out retransmitting when receiving wireless transmission block is exported to wireless transmission block sending part 317 with wireless transmission block afterwards, and wireless transmission block sending part 317 sends acceptance division 316 via wireless signal wireless transmission block is sent to base station 2.
The wireless transmission block acceptance division 213 of base station 2 is extracted wireless transmission block out and is exported to and retransmit control part 214 from the signal that receives via wireless signal transmission acceptance division 211.Retransmit control part 214 and judge whether normally received wireless transmission block.Under the situation that has normally received wireless transmission block, retransmit control part 214 wireless transmission block is exported to grouping reproducing unit 215.In addition, retransmit control part 214 and will normally receive the advisory of wireless transmission block to retransmitting control signal sending part 212.
After the grouping reproducing unit 215 of base station 2 is regenerated normally receiving all radio blocks that constitute grouping and divided into groups, the grouping of regenerating is sent to cable network 1 via wire signal sending part 216.
On the other hand, normally do not receiving under the situation of wireless transmission block, the repeating transmission control part 214 of base station 2 abandons wireless transmission block, and the advisory that will normally not receive wireless transmission block give to be retransmitted control signal sending part 212.
The repeating transmission control signal sending part 212 of base station 2 does not normally receive under the situation of wireless transmission block being informed to, with re-send request may as retransmitting control information, send acceptance division 211 via wireless signal and send to mobile radio station 3, normally received under the situation of wireless transmission block being informed to, to send to and confirm to send acceptance division 211 via wireless signal and send to mobile radio station 3 as retransmitting control information.
The repeating transmission control part 314 of mobile radio station 3 determines whether retransmitting with wireless transmission block unit according to the repeating transmission control information that receives via wireless signal transmission acceptance division 316 and repeating transmission control signal acceptance division 315.Retransmit control part 314 and retransmitting under the situation of control information for the re-send request may of the repeating transmission of the wireless transmission block of request, the retransmission process that the wireless transmission block that is requested to retransmit is put rules into practice.
Next, the action of the scheduler portion 219 of base station 2 is described.When having arrived predetermined scheduling time, the scheduler portion 219 of base station 2 according to and mobile radio station 3 be mapped storage send the priority that the data volume aggregate-value decides grouping, and carry out according to the priority of decision the scheduling of mobile radio station 3 distributing radio resource handled.In addition, scheduling is handled and to be handled roughly the same with the scheduling with reference to the execution mode 1 of the flowchart text of Fig. 6 of front, distinctive points is, in execution mode 1, will send to affirmation amount aggregate-value with the priority of wireless transmission block when dispatching of opposing, in present embodiment 12, will send the data volume aggregate-value with the priority of wireless transmission block when dispatching of opposing, so omit its explanation with respect to this at this.
After the scheduling processing finished, the be mapped data volume aggregate-value that sends of storage of 219 pairs in scheduler portion and mobile radio station 3 added that the wireless transport block size of handling distribution by scheduling is upgraded and sends the data volume aggregate-value.In addition, all be made as under the situation about having sent at the wireless transmission block that will constitute certain grouping, 219 pairs in scheduler portion be made as the be mapped aggregate-value of transmission data volume of storage of the mobile radio station 3 that has sent and carry out initialization.
As mentioned above, in present embodiment 12, the size that block length that base station 2 bases comprise from the transmission request that mobile radio station 3 receives and radiolink quality information decide wireless transmission block, and according to being mapped with mobile radio station 3, the aggregate-value of transmission data volume of aggregate-value that sends to the size of the wireless transmission block of expression that comprises in the transmission indication of this mobile radio station decides priority, according to the wireless transmission block distributing radio resource of the priority that is determined, will comprise that the size of wireless transmission block and the transmission indication of wireless resource allocation send to mobile radio station 3 to the grouping that constitutes mobile radio station 3 and should send.Mobile radio station 3 is cut apart the grouping that should send according to the wireless transport block size that comprises in the transmission indication and is generated wireless transmission block, and the wireless transmission block that will generate according to the wireless resource allocation that comprises in the transmission indication sends to base station 2.That is, base station 2 uses mobile radio stations 3 promptly to send the data volume aggregate-value according to the aggregate-value of the size that sends the wireless transmission block that indication sends to dispatch.Thus, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, as record in the execution mode 3 of front, scheduler portion 219 also can consider " remaining time is allowed in delay ".In this case, from mobile radio station 3 " remaining time is allowed in delay " being notified to base station 2 gets final product.
Use Figure 27 that embodiments of the present invention 13 are described.In execution mode 13, the situation of communication system applications in 3gpp Long Term Evolution with the execution mode 12 of front is described.Scheduler portion 219 uses of base station 2 have promptly sent the data volume aggregate-value at the data volume that has sent of dividing into groups dispatches processing.Therefore, need be from mobile radio station 3 to the data total amount of base station 2 groupings of notice savings packet buffer 312 and the size (arriving the grouping size) that arrives the grouping of base station 2.At first, illustrate from the wave point of mobile radio station 3 to base station 2 notification data total amounts and arrival grouping size.
As the explanation in the execution mode 10 of front, in 3gpp Long Term Evolution, be useful on the Buffer Status Report (buffer state reports) of the state of the transmission buffer of reporting mobile radio station.Mobile radio station 3 as sending request, is notified to base station 2 with putting aside the data total amount of the grouping in packet buffer 312 and arriving the grouping size with this buffer state reports.
Particularly, arrive predetermined transmission request report regularly the time, the grouping size (arriving the grouping size) of grouping that control part 319 will put aside the data total amount of the grouping packet buffer 312 in and become the object of the request of transmission is notified to transmission asks sending part 320.Then, send request sending part 320 and generate buffer state reports, and the buffer state reports that generates is sent to base station 2 via wireless signal transmission acceptance division 316 according to notified data total amount and arrival grouping size.The transmission request acceptance division 218 of base station 2 is extracted out to arrive from buffer state reports and is divided into groups size and export to scheduler portion 219 when receiving buffer state reports via wireless signal transmission acceptance division 211.
In addition, mobile radio station 3 can be the situation of the grouping that existence should send in mobile radio station 3 regularly with the transmission request report that buffer state reports sends to base station 2, also can be each predetermined cycle, also can be the situation that segmentation has taken place.In addition, the maximum wireless transport block size that can also depend on 2 appointments from the base station is stipulated Yu Ding cycle.
In addition, buffer state reports can be notified with a plurality of logic channel units in the mobile radio station 3, also can only notify specific channel (for example high channel of priority), also a plurality of logic channels can be concentrated and notify with mobile radio station 3 units.
In addition, to arrive the grouping size when being contained in the buffer state reports, if will arrive the value former state ground of grouping size comprises, then need one more than the byte, but under the situation of the data (not existing by the data of segmentation) that do not have savings in packet buffer 312, the zone of preserving the buffer state reports that arrives the grouping size is wasted.In order to eliminate this waste, the control bit that expression has or not fragmentation state can be in buffer state reports be set in order to cut down bit number.In addition, in that a plurality of logic channels are concentrated and generated under the situation of buffer state reports,, control bit public in the logic channel then is set in buffer state reports gets final product if do not exist by the data of segmentation for any one logic channel wherein.In order to eliminate this waste, also can in buffer state reports, expression be set and have or not the control bit that arrives the grouping size in order to cut down bit number.In addition, in that a plurality of logic channels are concentrated and generated under the situation of buffer state reports,, control bit public in the logic channel then is set in buffer state reports gets final product if do not exist by the data of segmentation for any one logic channel wherein.
And, in order to cut down the bit number that arrives the grouping size, also can represent to arrive the grouping size by index of reference.In this case, when in execution mode 10, the size of dividing into groups being carried out indexation with Figure 23 of reference front similarly, with arrive the grouping size be made as predetermined byte number at interval (increment) (100 byte interval under the situation of Figure 23) come to be mapped and get final product with index.Thus, compare, can cut down bit number with represent the situation that arrives the grouping size with true value.
In addition, the form of the extended MAC that is used for the transmitting buffer state reports-e PDU that uses in the present embodiment 13 is owing to roughly the same at the form of the extended MAC-e PDU of execution mode 10 explanations with Figure 24 of reference front, so at this distinctive points only is described.In present embodiment 13, use the extended MAC-e PDU of the MAC-e PDU expansion that will put down in writing among the 3gpp TS25.321 to report under the situation of grouping size in order to transmit buffer state reports, the affirmation amount of the sending to aggregate-value field of the SI field of the extended MAC-e PDU shown in Figure 24 of deletion front constitutes the SI field by UPH field, TEBS field, HLBS field, HLID field and packet size field and gets final product.In addition, the control information of using the MAC layer in present embodiment 13 is preserved the grouping size and is got final product under independently time-triggered report divides into groups big or small situation in the Value field of extended MAC-e PAD that Figure 25 of reference front illustrates in execution mode 10.
Next, interlayer interface is described.In the execution mode 10 in front, between rlc layer and MAC layer, transmitted and sent to affirmation amount aggregate-value and grouping size, but in present embodiment 13, between rlc layer and MAC layer, transmitted and arrive the grouping size.Promptly, arrival grouping size in the above-mentioned wave point is also exchanged between rlc layer and MAC layer, arriving the grouping size can notify with a plurality of logic channel units in the mobile radio station 3, also can only notify specific channel (for example high channel of priority), also a plurality of logic channels can be concentrated and notify with mobile radio station 3 units.
In addition, the notice of fragmentation state is regularly reported regularly similarly with the request of transmission, can be the situation of the grouping that existence should send in mobile radio station 3, also can be each cycle of being scheduled to, also can be the situation that segmentation has taken place.
Figure 27 illustrates the rlc layer of 3gpp TS25.321 expansion and the figure of convey a message (primitive) between the MAC layer.In Figure 27, as parameter (Parameter), defined request (Request), indication (Indication), response (Response), and affirmation (Confirm), request (Request) as MAC-DATA, can enumerate data (Data), BO (Buffer Occupancy, buffer occupation rate), UE-ID (subscriber equipment (User Equipment)), type indication (type Indicator), and RLC entity information (RLC Entity Info), as the indication (Indication) of MAC-DATA, can enumerate data (Data), No_TB (transmission block (TransportBlock) sequence number), TD (Note), and mistake indication (Error Indication).In addition, indication (Indication) as MAC-STATUS, can enumerate No_PDU (Packet Data Unit (Packet Data Unit) sequence number), PDU_Size (Packet Data Unit (Packet Data Unit) size), Tx Status and Status_Report_REQ, response (Response) as MAC-STATUS, can enumerate BO (BufferOccupancy, buffer occupation rate), RLC entity information (RLC Entity Info) and arrive grouping size (Arrived Packet Size).
As mentioned above, in present embodiment 13, use buffer state reports as the request of transmission, as conveying a message of interlayer 3gpp TS25.321 expansion is comprised fragmentation state in the Request of Parameter, so need not to change significantly in the past wave point, interlayer interface, the information that can pass on dispatching office to need.
In addition, in present embodiment 13, the situation of communication system applications in 3gpp Long Term Evolution with the execution mode 12 of front has been described, if but replace ArrivedPacket Size and use and send to affirmation amount aggregate-value, then can be applied in the communication system of execution mode 2 of front.
Use Figure 28 that embodiments of the present invention 14 are described.In the execution mode 11 in front, the aggregate-value of transmission data volume of aggregate-value of size that mobile radio station 3 sends to expression the wireless transmission block of base station 2 is notified to base station 2, the scheduler portion 219 of base station 2 dispatches according to the notified aggregate-value of transmission data volume, but in present embodiment 14, illustrate that the information that replaces having sent the data volume aggregate-value and use the position of wireless transmission block that mobile radio station 3 sends to base station 2 and grouping to concern is the situation of packet positions information.
In addition, the communication system of present embodiment 14 is because identical with the communication system of the execution mode shown in Figure 11 of front, so omit its explanation at this.In addition, the Fig. 9 of the mobile radio station 3 of present embodiment 14 and base station 2 and front and the mobile radio station 3 and the base station 2 of the execution mode shown in Figure 10 2 are identical, but its difference is: the aggregate-value of transmission data volume of the control part of mobile radio station 3 319 storage our stations, upgrade data volume aggregate-value and the packet positions information of having sent after sending wireless transmission block; Carry out the control of the additional packet positions information of upgrading by control part 319 of wireless transmission block that the wireless transmission block generating unit 313 to mobile radio station 3 generated.
At this, packet positions information is meant, represents that wireless transmission block is the information of which position of grouping.For packet positions information, as shown in figure 28, the beginning that comprises grouping at mobile radio station 3 in the wireless transmission block that base station 2 sends is given a definition with the situation at end and is " beginning/end ", in the wireless transmission block that base station 2 sends, comprise the beginning of grouping but the situation that do not comprise the end of grouping is given a definition and is " beginning/continuation " at mobile radio station 3, do not comprise the beginning of grouping but the situation that comprises the end of grouping is given a definition and is " continuations/end " in the wireless transmission block that base station 2 sends at mobile radio station 3, the situation that does not comprise the beginning of grouping and end in the wireless transmission block of 3 pairs of base stations of mobile radio station, 2 transmissions is given a definition and is " continuation/continuation ".In addition, packet positions information can be obtained with the grouping size according to sending the data volume aggregate-value.
Next, the action of the execution mode 14 of the communication system among the present invention is described.At first, illustrate that 2 mobile radio stations 3 that receive the transmission indication do not send request, the action that dispatch base station 2 to base station 2 notices from the base station.
When the never illustrated upper layer handling part of mobile radio station 3 received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.312 pairs of groupings of the packet buffer of mobile radio station 3 cushion.
The control part 319 of mobile radio station 3 generates the request of transmission when having arrived predetermined transmission request report timing.At this, the information that covers in the transmission request both can be made as the information that only expression has or not at least 1 bit of the request of sending (having or not the grouping that should send), also can be included in the buffer state reports that illustrates in the execution mode 10 of front.The transmission request that control part 319 will generate is exported to and is sent request sending part 320.Transmission request sending part 320 will send request via wireless signal transmission acceptance division 316 and send to base station 2.At this, mobile radio station 3 also can send request continuously till the transmission indication that receives wireless transmission block from base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send in the request information that comprise and send the mobile radio station 3 of the asking storage that is mapped.
When having arrived predetermined scheduling time, 219 pairs in the scheduler portion of base station 2 stores mobile radio station 3 operation dispatchings of the request of transmission and handles.At this, under the situation that has a plurality of mobile radio stations 3 that store the request of sending, the preferential and distributing radio resource of the transmission that also can make the big mobile radio station 3 of the radiolink quality information of the up direction of in base station 2, measuring or send request mobile radio station 3 often.
The transmission indication sending part 217 of base station 2 is handled the information of having carried out scheduling with scheduler portion 219 and is sent to each mobile radio station 3 as sending indication according to the information (wireless transport block size information) of the size of the wireless transmission block of radiolink quality information and buffer state reports decision and by scheduling.
Next, 2 mobile radio stations 3 that receive the transmission indication divide into groups to base station 2 transmission formations from the base station before the scheduling moment of being scheduled to wireless transmission block and packet positions information as the characteristics of present embodiment 14 are described, the action that dispatch base station 2.
When the wireless signal transmission acceptance division 316 via mobile radio station 3 received the transmission indication, the transmission that transmission indication acceptance division 318 will receive was indicated and is exported to control part 319.Control part 319 will send the wireless transport block size that comprises in the indication and generate information and export to wireless transmission block generating unit 313 as wireless transmission block.In addition, 319 pairs of control parts are stored sends the data volume aggregate-value and adds and send the wireless transport block size that comprises in the indication and upgrade and send data volume aggregate-value and packet positions information.Control part 319 all is made as under the situation about having sent at the wireless transmission block that will constitute certain grouping, carries out initialization to sending the data volume aggregate-value.
The wireless transmission block generating unit 313 of mobile radio station 3 generates information according to wireless transmission block, generates wireless transmission block according to the grouping that is buffered in the packet buffer 312.Wireless transmission block generating unit 313 is exported to after the wireless transmission block that generates has been added the packet positions information of being upgraded by control part 319 and is retransmitted control part 314.
After the required processing wireless transmission block is exported to wireless transmission block sending part 317 when the repeating transmission control part 314 of mobile radio station 3 has carried out retransmitting when receiving wireless transmission block, wireless transmission block sending part 317 sends acceptance division 316 via wireless signal wireless transmission block is sent to base station 2.
The wireless transmission block acceptance division 213 of base station 2 is extracted packet positions information out and is exported to scheduler portion 219 from the signal that receives via wireless signal transmission acceptance division 211.The information that scheduler portion 219 and the mobile radio station 3 that has sent packet positions information are mapped and comprise in the stores packets positional information.
When having arrived predetermined scheduling time, the scheduler portion 219 of base station 2 according to and the mobile radio station 3 stored packet positional information that is mapped decide the priority of grouping, carry out according to the priority that is determined the scheduling of mobile radio station 3 distributing radio resource handled.At this, suppose that the priority of grouping is the order of " continuation/continuation "＞" beginning/continuation "＞" continuation/end "=" beginning/end " for packet positions information.In addition, scheduling is handled because identical with the action of the flowchart text of Fig. 6 of reference front, so omit its explanation at this.Send indication sending part 217 scheduler portion 219 is sent to each mobile radio station 3 according to the information (wireless transport block size information) of the size of the wireless transmission block of radiolink quality information and buffer state reports decision and by the information that the scheduling processing is dispatched as sending indication.
Wireless transmission block acceptance division 213 is extracted wireless transmission block out and is exported to and retransmit control part 214 from the signal that receives via wireless signal transmission acceptance division 211.Retransmit control part 214 and judge whether normally received wireless transmission block.Under the situation that has normally received wireless transmission block, retransmit control part 214 wireless transmission block is exported to grouping reproducing unit 215.In addition, retransmit control part 214 and will normally receive the advisory of wireless transmission block to retransmitting control signal sending part 212.
The grouping reproducing unit 215 of base station 2 sends via wire signal sending part 216 grouping of regenerating after the grouping that normally receives all wireless transmission blocks that constitute grouping is regenerated to cable network 1.
On the other hand, normally do not receiving under the situation of wireless transmission block, the repeating transmission control part 214 of base station 2 abandons wireless transmission block, and the advisory that will normally not receive wireless transmission block give to be retransmitted control signal sending part 212.
The repeating transmission control signal sending part 212 of base station 2 is being informed under the situation that does not normally receive wireless transmission block, re-send request may is sent to mobile radio station 3 as retransmitting control information via wireless signal transmission acceptance division 211, be informed under the situation that has normally received wireless transmission block, will sending to affirmation and send to mobile radio station 3 via wireless signal transmission acceptance division 211 as retransmitting control information.
The repeating transmission control part 314 of mobile radio station 3 determines whether retransmitting with wireless transmission block unit according to the repeating transmission control information that receives via wireless signal transmission acceptance division 316 and repeating transmission control signal acceptance division 315.Retransmit control part 314 and retransmitting under the situation of control information for the re-send request may of the repeating transmission of the wireless transmission block of request, the retransmission process that the wireless transmission block that is requested to retransmit is put rules into practice.
As mentioned above, in present embodiment 14, mobile radio station 2 decides the size of wireless transmission block according to measured radiolink quality information and buffer conditions report, and the wireless transmission block that sends to base station 2 according to expression mobile radio station 3 is that packet positions information decides priority with the information that the position of grouping concerns, according to the wireless transmission block distributing radio resource of the priority that is determined, will comprise that the size of wireless transmission block and the transmission indication of wireless resource allocation send to mobile radio station 3 to the grouping that constitutes mobile radio station 3 and should send.Mobile radio station 3 is cut apart the grouping that should send according to the wireless transport block size that comprises in the transmission indication and is generated wireless transmission block, and the wireless resource allocation that comprises in indicating according to transmission is packet positions information and sends to base station 2 information of the position relation that the wireless transmission block additional representation that generates is divided into groups.Thus, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.And packet positions information, can be cut down from the control information amount of mobile radio station 3 to base station 2 notices so compare with the execution mode 10 or 11 of narration before owing to can show with one of four states.
In addition, under the situation of communication system applications in 3gpp Long TermEvolution, the Segmentation InfoField that puts down in writing among the 3gpp TS36.322 is used as packet positions information with present embodiment 14.Thus, need not to change significantly in the past wave point, interlayer interface, and the information that can pass on dispatching office to need.
In addition, receive under the situation that sends indication, also can select based on the high logic channel of being stored of the priority that sends the data volume aggregate-value, and generate wireless transmission block according to the data in this logic channel at mobile radio station 3.
And as record in the execution mode 3 of front, scheduler portion 219 also can consider " remaining time is allowed in delay ".In this case, from mobile radio station 3 " remaining time is allowed in delay " is notified to base station 2 and gets final product with sending the data volume aggregate-value.
In present embodiment 15, the processing the when priority of a plurality of mobile radio stations 3 equates is described in the priority of each mobile radio station 3 that the scheduler portion 219 of the base station 2 of execution mode 1～14 in front obtains.
For example, in the execution mode 1 in front, obtained according to expression and to be used to represent that the affirmation amount of the sending to aggregate-value of aggregate-value of size that wireless transmission block arrives the wireless transmission block of sending to affirmation of mobile radio station 3 decides priority, and sent to the highest mobile radio station 3 of affirmation amount aggregate-value from this and preferentially distributed Radio Resource.
In addition, in the execution mode 2 in front, the affirmation amount of the sending to aggregate-value of aggregate-value of size that normally receives the wireless transmission block of the wireless transmission block that mobile radio station 3 sends according to expression decides priority, and sends to the highest mobile radio station 3 of affirmation amount aggregate-value from this and preferentially distributed Radio Resource.
But, in the execution mode 1 and 2 in front, do not mention the highest mobile radio station of obtaining in scheduler portion 219 3 of priority and exist under a plurality of situations which mobile radio station 3 distributing radio resource by base station 2.
Therefore, in the execution mode 9 in front, for sending to the identical mobile radio station 3 of affirmation amount aggregate-value, so that the big mobile radio station 3 preferential modes of grouping size are dispatched, but in present embodiment 15, the big mobile radio station of sending in the identical mobile radio station 3 of affirmation amount aggregate-value 3 of radiolink quality information is preferentially dispatched.
In addition, for example, even showed under the situation of sending to affirmation amount aggregate-value or packet positions information at index of reference as the execution mode 10 or 14 of front, equally also can be for based on the identical mobile radio station 3 of the priority of sending to affirmation amount aggregate-value or packet positions information, make the preferential and processing of scheduling of the big mobile radio station of radiolink quality information 3.
And, be not only and sending under all equal situation of affirmation amount aggregate-value, and be defined as error range in result's (difference) that will compare the affirmation amount of the sending to aggregate-value corresponding and obtain with each mobile radio station 3, and under the situation of this error range, also can preferentially dispatch from the big mobile radio station 3 of radiolink quality information less than predetermined threshold value.
In addition, in the execution mode 3 in front, allow remaining time and send to affirmation amount aggregate-value by above-mentioned formula, promptly according to delay
Ptotal＝α×Pact+B×Pdelay
Calculate the priority of each wireless transmission block.In addition, in following formula, Pact represents based on the priority of sending to affirmation amount aggregate-value, Pdelay represents to allow based on delay the priority of remaining time, α represents the coefficient (weight) based on the priority of sending to affirmation amount aggregate-value, and B represents the coefficient (weight) of allowing the priority of remaining time based on residual.
And, in the execution mode 3 in front, also can utilize the radiolink quality information and send to affirmation amount aggregate-value and decide priority, so in sending to the equal a plurality of mobile radio stations 3 of affirmation amount aggregate-value, the mobile radio station 3 that the radiolink quality information is big, priority is high more, can play the effect same with present embodiment 15.But, in execution mode 3, send to affirmation amount aggregate-value is little and the radiolink quality information is big mobile radio station 3, with send to the big and priority mobile radio station 3 that the radiolink quality information is little of affirmation amount aggregate-value and might equate.
Relative with it, in present embodiment 15, be with the distinctive points of execution mode 3, at first utilization is sent to affirmation amount aggregate-value and is decided priority, and only send to that affirmation amount aggregate-value equates or error range is under the situation of threshold value with interior a plurality of mobile radio stations 3 in existence, utilize the radiolink quality information to decide priority.
As mentioned above, in present embodiment 15, scheduler portion 219 sends to affirmation amount aggregate-value, grouping size or delay in use and allows that exist a plurality of situation under with the identical mobile radio station 3 of priority of sending to the decision of affirmation amount aggregate-value remaining time, decide the priority of the mobile radio station 3 that becomes same priority according to the radiolink quality information, so can determine priority extremely meticulously.
In addition, in present embodiment 15, only send to that affirmation amount aggregate-value equates or error range is under the situation of threshold value with interior a plurality of mobile radio stations 3 in existence, utilize the radiolink quality information to decide priority, but not that former state ground uses the radiolink quality information, and can be the instantaneous value of priority allocation radiolink quality information and the high mobile radio station of difference of mean value yet.In addition, also can use other suitable indexs (for example be detained and allow remaining time) to decide priority.
In the execution mode 3 in front, allow remaining time and send to affirmation amount aggregate-value according to the delay of the time of expression till and decide priority from current time to the moment that can be detained wireless transmission block, so can suppress abandoning owing to the wireless transmission block that causes above the delay allowed time of dividing into groups, so reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
But, the execution mode 3 of front has illustrated 2 down directions to mobile radio station 3 from the base station, and in order to use the method for execution mode 3 to notify delay to allow remaining time to base station 2 from mobile radio station 3 from the up direction of mobile radio station 3 to base station 2, but in present embodiment 16, from mobile radio station 3 on the up direction of base station 2, need not to be detained to base station 2 notice and allow remaining time, obtain the effect same with the execution mode 3 of front from mobile radio station 3.
In addition, the communication system of present embodiment 16 is owing to identical with the communication system shown in Figure 1 of front, so omit its explanation at this.In addition, the base station 2 of the communication of up direction and the structure of mobile radio station 3 are because identical with the base station 2 and the mobile radio station 3 of the Figure 10 of front and execution mode 2 shown in Figure 9, so omit its explanation at this.
At first, 2 receiving the mobile radio stations 3 that send indication and send request, the action that dispatch base station 2 to base station 2 notices from the base station in the present embodiment 16 is described.
When never illustrated upper layer handling part received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.312 pairs of groupings of the packet buffer of mobile radio station 3 cushion.
The control part 319 of mobile radio station 3 generates the request of transmission when having arrived predetermined transmission request report timing.At this, the information that covers in the transmission request both can be made as the information that only expression has or not at least one bit of the request of transmission, also can be included in the buffer state reports that illustrates in the execution mode 10 of front.The transmission request that control part 319 will generate is exported to and is sent request sending part 320.Transmission request sending part 320 will send request via wireless signal transmission acceptance division 316 and send to base station 2.At this, mobile radio station 3 also can send request continuously till the transmission indication that receives wireless transmission block from base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send in the request storage that is mapped of the information that comprise and the mobile radio station 3 that has sent request, and utilize the clocking capability (timer) in the our station to begin carrying out timing from the elapsed time (send and ask the reception elapsed time) that receives from the transmission request of this mobile radio station at this mobile radio station.At this, scheduler portion 219 has sent continuously at mobile radio station 3 under the situation of request, the transmission request of the transmission request that received from the past from this mobile radio station 3 is received the elapsed time carry out instrumentation.Promptly, scheduler portion 219 is when receiving the transmission request, judge whether the mobile radio station 3 that has sent this transmission request have been begun to send the instrumentation that request receives the elapsed time, only do not beginning under the instrumentation transmission situation in request reception elapsed time, beginning receives the instrumentation in elapsed time at the transmission request of this mobile radio station 3.
When having arrived predetermined scheduling time, the scheduler portion 219 of base station 2 according to and the be mapped transmission request of instrumentation of mobile radio station 3 receive the elapsed time and decide the priority of grouping, and carry out according to the priority that is determined the scheduling of mobile radio station 3 distributing radio resource handled.In this case, it is long more that the request of transmission receives the elapsed time, and scheduler portion 219 establishes priority high more.
Transmission indication sending part 217 sends to each mobile radio station 3 with the information that scheduler portion 219 has carried out according to the information (wireless transport block size information) of the size of the wireless transmission block of radiolink quality information decision and by the scheduling processing dispatching as sending indication.
As mentioned above, in present embodiment 16, play transmission request till the current time of dispatching and receive the elapsed time and carry out instrumentation receive transmission request that mobile radio station 3 sends from base station 2, and according to sending the priority of asking the reception elapsed time to decide grouping, so need not to allow remaining time from mobile radio station 3 notice delays, can suppress abandoning owing to the wireless transmission block that causes above the delay allowed time of dividing into groups, so reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, in present embodiment 16, according to playing transmission request till the current time of dispatching and receive the elapsed time and decide the priority of grouping from receiving the request of sending, but send under the situation of request continuously at mobile radio station 3, the scheduler portion 219 that also can store base station 2 receives the number of times of the request of transmission, and the mobile radio station often that receives the request of transmission is preferentially dispatched.
In addition, in base station 2, can grasp under the situation of delay allowed time of the grouping that mobile radio station 3 request sends, scheduler portion 219 also can obtain to be detained and allow remaining time according to the moment, current time and the delay allowed time that receive the request of transmission, and the priority of remaining time as grouping is allowed in the delay that will obtain.In this case, even from receive the request of sending play identical grouping of elapsed time till the current time exist a plurality of, also can be by delay being allowed short mobile radio station 3 preferentially be dispatched and suppressed owing to surpass abandoning of wireless transmission block that the delay allowed time of grouping causes remaining time.
In addition, in present embodiment 16, will be made as the request of transmission till the current time that scheduler portion 219 dispatches is played in the request of sending and receive the elapsed time, be not limited thereto but the request that sends receives the elapsed time since receiving from mobile radio station 3.For example, added under the situation of packet positions information like that as explanation in the execution mode 14 of front, added expression and comprise the beginning of grouping and do not comprise the wireless transmission block of the packet positions information at end (being the beginning of wireless transmission block that packet fragmentation is obtained), be made as to send till the current time dispatched to scheduler portion 219 and ask the reception elapsed time from receiving at 3 pairs of wireless transmission blocks of mobile radio station.In this case, the beginning of whether the additional packet positions information of wireless transmission block being represented to comprise grouping is judged by scheduler portion 219, comprise under the situation of beginning of grouping being judged to be the packet positions information representation, use clocking capability to begin instrumentation and get final product at transmission request reception elapsed time of the mobile radio station 3 that has sent this wireless transmission block.Thus, need not to allow remaining time from mobile radio station 3 notice delays, and can suppress abandoning owing to the wireless transmission block that causes above the delay allowed time of dividing into groups, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In the execution mode 16 in front, the moment that receives the transmission request of mobile radio station 3 transmissions since base station 2 rises, clocking capability in the use device begins the elapsed time (send request receive elapsed time) of instrumentation from receiving the request of transmission, and in handling, scheduling ask the reception elapsed time to decide the priority of grouping according to transmission, so can suppress abandoning of the wireless transmission block that causes owing to the delay allowed time that surpasses grouping, need not to be detained and allow remaining time and can obtain the effect same with the execution mode 3 of front from mobile radio station 3 notices.
But, in the execution mode 16 in front, in base station 2, must send request at the transmission request difference instrumentation that sends from a plurality of mobile radio stations 3 and receive the elapsed time.In present embodiment 17, the emergency that comprises the request of transmission in the buffer state reports by explanation in the execution mode 10 in front, thereby need not to carry out instrumentation, allow that remaining time, short mobile radio station 3 was preferentially dispatched and make to be detained by 2 pairs of transmission requests reception elapsed time of base station at each mobile radio station 3.
In addition, the communication system of present embodiment 17 is owing to identical with the communication system shown in Figure 1 of front, so omit its explanation at this.In addition, from mobile radio station 3 to the structure of the base station 2 of the communication of the up direction of base station 2 and mobile radio station 3 because identical, so omit its explanation at this with the base station 2 and the mobile radio station 3 of the Figure 10 of front and execution mode 2 shown in Figure 9.
At first, illustrate that the mobile radio station 3 in the present embodiment 17 sends request, the action that dispatch base station 2 to base station 2 notices.At this, in present embodiment 17, similarly buffer state reports is asked as sending with execution mode 10.
When the never illustrated upper layer handling part of mobile radio station 3 received the data that should send, the grouping generating unit 311 of mobile radio station 3 generated grouping according to the data that should send, and exports to packet buffer 312.312 pairs of groupings of the packet buffer of mobile radio station 3 cushion.In addition, the delay allowed time that control part 319 uses the clocking capability of our station to begin the new grouping of instrumentation, always grasp the respectively delay allowed time of grouping.
The control part 319 of mobile radio station 3 judges that according to predetermined metewand delay of each grouping allows the urgency of remaining time.At this, metewand is from upper layer notice, for example, allows that the ratio of remaining time becomes and is made as " promptly " under 10% the situation and gets final product being detained allowed time and delay.In addition, be detained allowed time and delay and allow that the ratio of remaining time is not limited to above-mentioned and also can uses other numerical value, can certainly use other metewands.In addition, whether urgent urgency also can be made as the information of expression at least one bit.
The control part 319 of mobile radio station 3 is created on the buffer state reports that illustrates in the execution mode 10 of front when having arrived predetermined transmission request report timing.Control part 319 is when generating buffer state reports, to the additional above-mentioned urgency of buffer state reports.At this, when buffer state reports is added urgency, if, then 5 bits are used for the buffer state reports of execution mode 10 explanations in front, and the report that remaining 1 bit is used for urgency gets final product for example with 6 bits performance buffer state reports.Control part 319 is exported to the buffer state reports that generates and is sent request sending part 320.
Transmission request sending part 320 will send request via wireless signal transmission acceptance division 316 and send to base station 2.At this, mobile radio station 3 also can send request continuously till the transmission indication that receives wireless transmission block from base station 2.In addition, received at mobile radio station 3 under the situation of transmission indication of wireless transmission block, also can and send to base station 2 the additional above-mentioned transmission request of wireless transmission block from base station 2.
When the wireless signal transmission acceptance division 211 via base station 2 receives the transmission request, send the transmission request of asking acceptance division 218 to receive and export to scheduler portion 219.Scheduler portion 219 will send in the request urgency that comprise and send the mobile radio station 3 of the asking storage that is mapped.
When having arrived predetermined scheduling time, the scheduler portion 219 of base station 2 according to and the be mapped urgency of storage of mobile radio station 3 decide the priority of grouping, and carry out according to the priority that is determined the scheduling of mobile radio station 3 distributing radio resource handled.At this, exist under a plurality of situations at the not urgent mobile radio station 3 of urgency and to use other priority indexs to come operation dispatching to handle.In these said other priority for example is the affirmation amount of the sending to aggregate-value etc. of narration in the execution mode 2.
As mentioned above, in present embodiment 17, the control part 319 of mobile radio station 3 is allowed according to the delay of each grouping and is obtained urgency remaining time, in buffer state reports, comprise urgency and send to base station 2, delay of each grouping that comprises in the buffer state reports of the scheduler portion 219 of base station 2 according to mobile radio station 3 transmissions allows that the urgency of remaining time decides the priority of grouping, so can suppress abandoning owing to the wireless transmission block that causes above the delay allowed time of dividing into groups, having reduced is being that a plurality of wireless transmission blocks can't be regenerated grouping when sending and sent to affirmation because wireless transmission block no show sends purpose wireless transmission block becomes useless probability with packet fragmentation, thereby can effectively utilize radiolink.
In addition, in present embodiment 17,1 bit in the bit number that uses in the buffer state reports is used for the report of urgency, but can is urgent also certain specific value defined of buffer state reports value.For example, under situation, be defined as urgent with 111111 with 6 bits performance buffer state reports.Thus, under the situation with 5 bits performance buffer state reports is the granularity of 32 suitable (2 5 powers), if with respect to this is urgent with the specific value defined in 6 bits only, then become the granularity of 63 suitable (2 6 powers-1), 2 times-1 granularity can be obtained, priority can be set extremely meticulously.
Utilizability on the industry
As mentioned above, communication system of the present invention is to have to the communication system of having used radiolink With, be specially adapted to use the communication system of the wireless transmission block that packet fragmentation is obtained System.
Claims (36)
1. communication system, base station and remote station that mobile station via is connected on the network communicate, it is characterized in that,
Above-mentioned base station possesses:
Wireless transmission block generating unit, the packet fragmentation that should send are a plurality of wireless transmission blocks;
Scheduler portion, according to sending to affirmation amount aggregate-value decision priority, and according to the priority that is determined to constituting the wireless transmission block distributing radio resource of the grouping that should send, the above-mentioned affirmation amount aggregate-value of sending to has been represented to obtain and has been represented that above-mentioned wireless transmission block arrives the aggregate-value of size of the wireless transmission block of sending to affirmation of above-mentioned mobile radio station; And
Wireless transmission block sending part uses the assigned radio resource by above-mentioned scheduler portion, sends the wireless transmission block that is generated by above-mentioned wireless transmission block generating unit,
Above-mentioned mobile radio station possesses:
Retransmit control part, under the situation that normally receives wireless transmission block from above-mentioned base station, will send to and confirm to send to above-mentioned base station, under the situation that does not normally receive wireless transmission block, re-send request may is sent to above-mentioned base station from above-mentioned base station; And
The grouping reproducing unit is according to the wireless transmission block regeneration grouping that receives from above-mentioned base station.
2. communication system according to claim 1 is characterized in that,
In above-mentioned base station via under base-station control apparatus and the situation that above-mentioned network is connected,
Above-mentioned base-station control apparatus sends the section of cutting apart of cutting apart grouping and obtaining to above-mentioned base station,
The wireless transmission block generating unit of above-mentioned base station generates above-mentioned wireless transmission block according to the above-mentioned section of cutting apart,
The wireless transmission block regeneration section of cutting apart that the grouping reproducing unit basis of above-mentioned base station receives from above-mentioned base station, and according to the section of the cutting apart regeneration grouping of regenerating.
3. communication system according to claim 1 is characterized in that,
The scheduler portion of above-mentioned base station allows that according to delay remaining time and the above-mentioned affirmation amount aggregate-value of sending to determine above-mentioned priority, and the time till representing remaining time from current time to the moment that can be detained above-mentioned wireless transmission block is allowed in above-mentioned delay.
4. communication system according to claim 1 is characterized in that,
The delivery quality of the wireless transmission block that has distributed above-mentioned Radio Resource is selected to be used to send according to above-mentioned priority by the scheduler portion of above-mentioned base station.
5. communication system according to claim 4 is characterized in that,
Above-mentioned delivery quality is made as modulation system, encoding rate or transmitted power.
6. communication system according to claim 1 is characterized in that,
The higher limit of the repeating transmission number of times of above-mentioned wireless transmission block is selected according to above-mentioned priority by the scheduler portion of above-mentioned base station.
7. communication system according to claim 1 is characterized in that,
The scheduler portion of above-mentioned base station selects count and delivery quality cutting apart of above-mentioned wireless transmission block according to the block length and the radiolink quality information of above-mentioned grouping.
8. communication system according to claim 1 is characterized in that,
Above-mentioned mobile radio station also possesses handoff request portion, this handoff request portion measures to the base station of current connection and with the base station of the current base station adjacency that is connected and the radiolink quality between our station, and send according to measured radiolink quality and to be used to ask the handoff request switched
Above-mentioned base station also possesses switch control portion, and this switch control portion is carried out the hand-off process at the mobile radio station that has sent above-mentioned handoff request when receiving the switching execute permission,
Above-mentioned scheduler portion is when receiving above-mentioned handoff request, do not rely on above-mentioned priority and/or the delivery quality of sending to affirmation amount aggregate-value and will constituting the wireless transmission block of undelivered of the grouping during the mobile radio station that has sent above-mentioned handoff request sent and set highly, after the transmission of the grouping in the mobile radio station that has sent above-mentioned handoff request is sent finishes above-mentioned switching execute permission is being exported to above-mentioned switch control portion.
9. communication system according to claim 8 is characterized in that,
The handoff request portion of above-mentioned mobile radio station obtains the degradation speed of radiolink quality according to measured radiolink quality, the switching delay allowance time that can communicate with the current base station that is connected according to the prediction of speed of being obtained, transmission comprises the handoff request of the switching delay allowance time of being predicted
The scheduler portion of above-mentioned base station obtains that required time is finished in required sending to for the wireless transmission block of undelivered that sends the grouping of formation during the mobile radio station that has sent above-mentioned handoff request is sent, send at this that to finish required time be under the situation below the switching delay allowance time that comprises in the above-mentioned handoff request, not relying on above-mentioned priority and/or the delivery quality of sending to affirmation amount aggregate-value and will constituting the wireless transmission block of undelivered of the grouping during the mobile radio station that has sent above-mentioned handoff request sent sets highly, after the transmission of the grouping in the mobile radio station that has sent above-mentioned handoff request is sent finishes, above-mentioned switching execute permission is exported to above-mentioned switch control portion, send under the situation of finishing the switching delay allowance time that required time comprises in greater than above-mentioned handoff request above-mentioned, above-mentioned switching execute permission is exported to above-mentioned switch control portion immediately.
10. communication system according to claim 9 is characterized in that,
The scheduler portion of above-mentioned base station sends to above-mentioned that to finish required time be under the situation below the switching delay allowance time that comprises in the above-mentioned handoff request, finishes required time and the above-mentioned switching delay allowance time is adjusted above-mentioned priority and delivery quality according to above-mentioned sending to.
11. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Send the request sending part, when having produced the grouping that should send, will comprise that the transmission request of the block length of the grouping that this should send sends to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the above-mentioned grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Scheduler portion, decide the size of above-mentioned wireless transmission block according to the block length that comprises the transmission request that receives from above-mentioned mobile radio station and radiolink quality information, and according to sending to affirmation amount aggregate-value decision priority, and, above-mentionedly send to the aggregate-value of size that affirmation amount aggregate-value represents normally to receive the wireless transmission block of the wireless transmission block that above-mentioned mobile radio station sends according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
12. communication system according to claim 11 is characterized in that,
In above-mentioned base station via under base-station control apparatus and the situation that network is connected,
The wireless transmission block generating unit of above-mentioned mobile radio station generates the section of cutting apart that the above-mentioned grouping that should send is cut apart, and the section of cutting apart that will generate cuts apart and generate wireless transmission block,
The grouping generating unit of above-mentioned base station is according to the wireless transmission block regeneration section of cutting apart that receives from above-mentioned mobile radio station, and the section of cutting apart that will regenerate sends to above-mentioned base-station control apparatus,
Above-mentioned base-station control apparatus is according to the section of the cutting apart regeneration grouping from above-mentioned base station.
13. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Control part normally receives sending to of wireless transmission block when confirming receiving expression from above-mentioned base station, and the affirmation amount of the sending to aggregate-value of aggregate-value of expression having been obtained the size of the wireless transmission block of sending to affirmation upgrades and stores;
Send the request sending part, will comprise that the affirmation amount of the sending to aggregate-value of above-mentioned control part storage and the transmission request of the block length of the grouping that should send send to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the above-mentioned grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Send to the affirmation sending part, above-mentioned sending to confirmed to send to above-mentioned mobile radio station;
Scheduler portion, decide the size of above-mentioned wireless transmission block according to the block length that comprises the transmission request that receives from above-mentioned mobile radio station and radiolink quality information, and decide priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send according to the affirmation amount of the sending to aggregate-value that comprises the transmission request that receives from above-mentioned mobile radio station; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
14. communication system according to claim 13 is characterized in that,
The transmission request sending part of above-mentioned mobile radio station is used as above-mentioned transmission request with buffer state reports.
15. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Send the request sending part, will comprise that the transmission request of the block length of the grouping that has sent the data volume aggregate-value and should send sends to above-mentioned base station, above-mentionedly sent the aggregate-value that the data volume aggregate-value is represented the size of the wireless transmission block that sends to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the above-mentioned grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Scheduler portion, decide the size of above-mentioned wireless transmission block according to the block length that comprises the transmission request that receives from above-mentioned mobile radio station and radiolink quality information, and decide priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send according to the aggregate-value of transmission data volume that comprises the transmission request that receives from above-mentioned mobile radio station; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
16. communication system according to claim 15 is characterized in that,
The transmission request sending part of above-mentioned mobile radio station is used as above-mentioned transmission request with buffer state reports.
17. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Send the request sending part, will comprise that the transmission request of the block length of the grouping that should send sends to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the above-mentioned grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Scheduler portion, decide the size of above-mentioned wireless transmission block according to the block length that comprises the transmission request that receives from above-mentioned mobile radio station and radiolink quality information, and the aggregate-value of transmission data volume according to the aggregate-value of the size of the wireless transmission block of expression that comprises in the transmission indication that this mobile radio station sends accordingly with above-mentioned mobile radio station decides priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
18. communication system according to claim 17 is characterized in that,
The transmission request sending part of above-mentioned mobile radio station is used as above-mentioned transmission request with buffer state reports.
19. communication system according to claim 1 is characterized in that,
The scheduler portion of above-mentioned base station exists under a plurality of situations at the mobile radio station that equates according to the priority of sending to the decision of affirmation amount aggregate-value, decide priority according to the radiolink quality information, the above-mentioned affirmation amount aggregate-value of sending to has been represented to obtain and has been represented that above-mentioned wireless transmission block arrives the aggregate-value of size of the wireless transmission block of sending to affirmation of mobile radio station.
20. communication system according to claim 11 is characterized in that,
The scheduler portion of above-mentioned base station exists under a plurality of situations at the mobile radio station that equates according to the priority of sending to the decision of affirmation amount aggregate-value, according to radiolink quality information decision priority, above-mentionedly send to the aggregate-value of size that affirmation amount aggregate-value represents normally to receive the wireless transmission block of the wireless transmission block that above-mentioned mobile radio station sends.
21. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Send the request sending part, will comprise that expression has or not the transmission request of the information of the grouping that should send to send to above-mentioned base station;
Wireless transmission block generating unit, size according to the wireless transmission block that comprises the transmission indication of notifying from above-mentioned base station, cut apart the above-mentioned grouping that should send and generate wireless transmission block, the packet positions information that the position of the wireless transmission block that generated of expression and grouping is concerned appends to the wireless transmission block that is generated; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that has added packet positions information that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Scheduler portion, have or not the information of the grouping that should send and the size that the radiolink quality information decides above-mentioned wireless transmission block according to the expression that comprises the transmission request that receives from above-mentioned mobile radio station, and decide priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send according to packet positions information additional from the wireless transmission block that above-mentioned mobile radio station receives; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
22. communication system according to claim 21 is characterized in that,
The transmission request sending part of above-mentioned mobile radio station is used as above-mentioned transmission request with buffer state reports.
23. communication system according to claim 21 is characterized in that,
The scheduler portion of above-mentioned base station exists under a plurality of situations at the mobile radio station that the priority that decides according to packet positions information additional from the wireless transmission block that above-mentioned mobile radio station receives equates, according to radiolink quality information decision priority.
24. communication system according to claim 21 is characterized in that,
Arbitrary state in the following situation of above-mentioned packet positions information representation: the packet fragmentation that should send and in the wireless transmission block that generates comprises the beginning of the grouping that should send and comprises the situation at end; Comprise the beginning of the grouping that should send and do not comprise the situation at end; Do not comprise the beginning of the grouping that should send and comprise the situation at end; Do not comprise the beginning of the grouping that should send and the situation at end.
25. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Send the request sending part, will comprise that expression has or not the transmission request of the information of the grouping that should send to send to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the above-mentioned grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Scheduler portion, have or not the information of the grouping that should send and the size that the radiolink quality information determines above-mentioned wireless transmission block according to the expression that comprises the transmission request that receives from above-mentioned mobile radio station, and receive elapsed time decision priority according to the request of transmission, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send, it is since receive above-mentioned transmission request, elapsed time till current from above-mentioned mobile radio station that above-mentioned transmission request receives the elapsed time; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
26. communication system according to claim 25 is characterized in that,
The wireless transmission block generating unit of above-mentioned mobile radio station appends to the wireless transmission block that is generated with packet positions information, and close the wireless transmission block that this packet positions information representation generated and the position of grouping is arbitrary state in the following situation: comprise the beginning of the grouping that should send and comprise the situation at end; Comprise the beginning of the grouping that should send and do not comprise the situation at end; Do not comprise the beginning of the grouping that should send and comprise the situation at end; Do not comprise the beginning of the grouping that should send and the situation at end,
The scheduler portion of above-mentioned base station will receive to have added and represent that the wireless transmission block, the elapsed time till current of packet positions information that above-mentioned packet positions information comprises the beginning of the grouping that should send receives the elapsed time and determine priority as the request of transmission from above-mentioned mobile radio station.
27. a communication system, mobile station via base station and remote station communicate, it is characterized in that,
Above-mentioned mobile radio station possesses:
Send the request sending part, will comprise that the transmission request of buffer state reports sends to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the above-mentioned grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Above-mentioned base station possesses:
Scheduler portion, decide the size of above-mentioned wireless transmission block according to the buffer state reports that receives from above-mentioned mobile radio station and radiolink quality information, and decide priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send according to the buffer state reports that receives from above-mentioned mobile radio station; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station,
Whether the transmission request sending part of above-mentioned mobile radio station will be illustrated in the transmission of grouping needs urgent emergence message to be included in the buffer state reports,
The scheduler portion of above-mentioned base station decides priority according to the emergence message that comprises from the buffer state reports that above-mentioned mobile radio station receives.
28. a base station is connected with cable network by Wireline, and is connected with mobile radio station by radiolink, this base station is characterised in that to possess:
Wireless transmission block generating unit, the packet fragmentation that should send are a plurality of wireless transmission blocks;
Scheduler portion, according to sending to affirmation amount aggregate-value decision priority, and according to the priority that is determined to constituting the wireless transmission block distributing radio resource of the grouping that should send, the above-mentioned affirmation amount aggregate-value of sending to has been represented to obtain and has been represented that above-mentioned wireless transmission block arrives the aggregate-value of size of the wireless transmission block of sending to affirmation of above-mentioned mobile radio station; And
Wireless transmission block sending part uses the assigned radio resource by above-mentioned scheduler portion, sends the wireless transmission block that is generated by above-mentioned wireless transmission block generating unit.
29. base station according to claim 28 is characterized in that,
Also possess switch control portion, this switch control portion is carried out the hand-off process at the mobile radio station of having asked to switch when receiving the switching execute permission,
Above-mentioned scheduler portion receive above-mentioned mobile radio station to the base station of current connection and with the base station of the current base station adjacency that is connected, and the radiolink quality between our station is measured and according to measured radiolink quality when asking to switch the handoff request that sends, do not rely on above-mentioned priority and/or the delivery quality of sending to affirmation amount aggregate-value and will constituting the wireless transmission block of undelivered of the grouping during the mobile radio station that has sent above-mentioned handoff request sent and set highly, after the transmission of the grouping in the mobile radio station that has sent above-mentioned handoff request is sent finishes above-mentioned switching execute permission is being exported to above-mentioned switch control portion.
30. a base station is connected with mobile radio station by radiolink, this base station is characterised in that to possess:
Scheduler portion, decide the size of wireless transmission block according to the block length that comprises the transmission request that receives from above-mentioned mobile radio station and radiolink quality information, and the affirmation amount of the sending to aggregate-value of aggregate-value of size that normally receives the wireless transmission block of the wireless transmission block that above-mentioned mobile radio station sends according to expression decides priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
31. a base station is connected with mobile radio station by radiolink, this base station is characterised in that to possess:
Scheduler portion, have or not the information of the grouping that should send and the size that the radiolink quality information decides above-mentioned wireless transmission block according to the expression that comprises the transmission request that receives from above-mentioned mobile radio station, and receive elapsed time decision priority according to the request of transmission, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send, it is since receive above-mentioned transmission request, elapsed time till current from above-mentioned mobile radio station that above-mentioned transmission request receives the elapsed time; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
32. base station according to claim 31 is characterized in that,
Above-mentioned scheduler portion will comprise that the wireless transmission block of the beginning of grouping, elapsed time till current are as sending the request reception elapsed time and determining priority since receive above-mentioned mobile radio station expression this wireless transmission block additional to above-mentioned wireless transmission block and the packet positions information representation of the position relation of grouping from above-mentioned mobile radio station.
33. a base station is connected with mobile radio station by radiolink, this base station is characterised in that to possess:
Scheduler portion, according to the whether buffer state reports of the urgent emergence message of needs and the size that the radiolink quality information decides wireless transmission block the transmission that comprises expression grouping that receives from above-mentioned mobile radio station, and the emergence message according to the buffer state reports that receives from above-mentioned mobile radio station decides priority, and according to the wireless transmission block distributing radio resource of the priority that is determined to the grouping that constitutes above-mentioned mobile radio station and should send; And
Send the indication sending part, will comprise that the size of wireless transmission block of above-mentioned scheduler portion decision and the transmission indication of wireless resource allocation send to mobile radio station.
34. a mobile radio station is connected with the base station by radiolink, this mobile radio station is characterised in that to possess:
Send the request sending part, when having sent the grouping that should send, will comprise that the transmission request of the block length of the grouping that this should send sends to above-mentioned base station;
Wireless transmission block generating unit, the size according to the wireless transmission block that comprises the transmission indication of notifying from above-mentioned base station generates wireless transmission block with the above-mentioned packet fragmentation that should send; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates.
35. a mobile radio station is connected with the base station by radiolink, this mobile radio station is characterised in that to possess:
Send the request sending part, will comprise that expression has or not the transmission request of the information of the grouping that should send to send to above-mentioned base station;
Wireless transmission block generating unit, size according to the wireless transmission block that comprises the transmission indication of notifying from above-mentioned base station, cut apart the above-mentioned grouping that should send and generate wireless transmission block, and will represent that the packet positions information of the position relation of the wireless transmission block that generated and grouping appends to the wireless transmission block that is generated; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that has added packet positions information that above-mentioned wireless transmission block generating unit generates.
36. a mobile radio station is connected with the base station by radiolink, this mobile radio station is characterised in that to possess:
Send the request sending part, will comprise that the transmission request of buffer state reports sends to above-mentioned base station;
Wireless transmission block generating unit according to the size of the wireless transmission block that comprises the transmission notified from the above-mentioned base station indication, is cut apart the grouping that should send and is generated wireless transmission block; And
Wireless transmission block sending part according to the wireless resource allocation that comprises the transmission indication of notifying from above-mentioned base station, will send to the base station by the wireless transmission block that above-mentioned wireless transmission block generating unit generates,
Whether above-mentioned transmission request sending part will be illustrated in the transmission of grouping needs urgent emergence message to be included in the above-mentioned buffer state reports.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPPCT/JP2006/326222 | 2006-12-28 | ||
| PCT/JP2006/326222 WO2008001481A1 (en) | 2006-06-29 | 2006-12-28 | Communication system, base station, and mobile station |
| PCT/JP2007/075122 WO2008081865A1 (en) | 2006-06-29 | 2007-12-27 | Communication system, base station, and mobile station |
Publications (2)
| Publication Number | Publication Date |
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| CN101601322A true CN101601322A (en) | 2009-12-09 |
| CN101601322B CN101601322B (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007800484987A Expired - Fee Related CN101601322B (en) | 2006-12-28 | 2007-12-27 | Communication system, base station, and mobile station |
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| CN (1) | CN101601322B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104067654A (en) * | 2012-01-09 | 2014-09-24 | 摩托罗拉移动有限责任公司 | Dynamic tcp layer optimization for real-time field performance |
| CN111757504A (en) * | 2019-03-29 | 2020-10-09 | 国立研究开发法人情报通信研究机构 | Wireless communication system and wireless communication method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0928086B8 (en) * | 1997-05-13 | 2006-06-07 | Matsushita Electric Industrial Co., Ltd. | Packet transmitter |
| JP2004147275A (en) * | 2002-08-30 | 2004-05-20 | Matsushita Electric Ind Co Ltd | Packet transmission scheduling method and base station device |
| CN100571113C (en) * | 2005-12-26 | 2009-12-16 | 中兴通讯股份有限公司 | A kind of in TDS-CDMA system the implementation method of HSDPA |
-
2007
- 2007-12-27 CN CN2007800484987A patent/CN101601322B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104067654A (en) * | 2012-01-09 | 2014-09-24 | 摩托罗拉移动有限责任公司 | Dynamic tcp layer optimization for real-time field performance |
| CN104067654B (en) * | 2012-01-09 | 2018-09-28 | 谷歌技术控股有限责任公司 | Dynamic TCP layer for real-time live performance optimizes |
| CN111757504A (en) * | 2019-03-29 | 2020-10-09 | 国立研究开发法人情报通信研究机构 | Wireless communication system and wireless communication method |
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| CN101601322B (en) | 2012-10-31 |
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