CN102210179B - The method and apparatus supporting the self adaptation decentralized traffic scheduling of radio communication - Google Patents
The method and apparatus supporting the self adaptation decentralized traffic scheduling of radio communication Download PDFInfo
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Abstract
Describe the method and apparatus relevant to the scheduling of the air link resources such as such as traffic segment in radio communication.It is distributed wireless ad-hoc network that various described method and apparatus are suitable for wherein traffic scheduling, such as self-organizing peer-to-peer network.First wireless terminal connects corresponding transmission request and quality of service information from the second wireless terminal reception and one.First wireless terminal decide not to perform receiver give way, according to the quality of service information received determine request response transmission power level, and with determined by power level transmit generate request response signal.By controllably adjusting the transmission power level of request response, the transmitter concession judgement of lower priority link is affected because lower priority link its transmitter give way judge in measure and use and corresponding with the request response of higher priority link receive power level information.
Description
Field
Each embodiment relates to radio communication, particularly relates to the method and apparatus relevant to peer-to-peer communications.
Background
In the wireless communication system lacking centerized fusion, the scheduling to traffic segment is probably rich challenging of task.
The wireless terminal corresponding from different connections may want to use identical traffic segment concomitantly.Depend on situation and/or position,
Two connect the identical traffic segment of use and are probably sometimes acceptable, and are probably when other and are difficult to stand
's.When making wireless terminal transmission and determining, context-aware such as, other wireless terminals neighbouring to it and/or other
The needs connected and/or the context-aware of requirement are probably useful.Although strict transmission determines that way is easily achieved
But may result in the inefficiency that traffic air link resources utilizes.Based on described above, it is to be appreciated that need adaptive and
Relative to regardless of whether there is traffic data to transmit the method and apparatus all allowing a certain degree of motility.
General introduction
Describe the method relevant to the scheduling of the air link resources such as the such as traffic segment in wireless communication system and dress
Put.It is distributed wireless ad-hoc network, such as self-organizing that various described method and apparatus are suitable for wherein traffic scheduling
Peer-to-peer network.In certain embodiments, corresponding with peer to peer connection expectation pass on the individual wireless terminal of telephone traffic signal with by
Make transmitter based on traffic gap to give way and/or receiver concession judgement.
Such as, the second and first wireless terminal can have the first peer to peer connection to first pair of wireless terminal, and
Such as, the third and fourth wireless terminal can have the second peer to peer connection to two pairs of wireless terminals.For understanding at least one
The purpose of a little embodiments, it is considered to there is the privilege level concept that the connection with this traffic gap is associated, and the first connection has ratio
Second connects higher priority.Consider that two connections are intended to use identical air link resources such as further,
Traffic segment passes on traffic in identical traffic gap.The wireless terminal that lower priority connects be made whether to give way in higher
The judgement that priority connects.
Will now be described at some but need not to be the interference management way used in all embodiments.Corresponding to first even
Connect, expection transmitter such as second wireless terminal of traffic to the expection receiver of expection traffic such as, the
One wireless terminal sends traffic transmission request and quality of service information or the information for quality of service information of deriving.If
Such as, the first wireless terminal determines to give this request positive response the first expection receiver connected, then its based on
Its quality of service information determine request response transmission power level, generate traffic transmission request response signal, and with determined by
Transmission power level transmits the request response generated.
Connecting corresponding expection traffic transmitter such as with lower priority, the 3rd wireless terminal reception is also
Process with the higher priority corresponding traffic transmission request response signal of connection and with the connection of their own corresponding if
Business transmission request response signal.Such as, the 3rd wireless terminal is based on relatively for the expection transmitter that lower priority connects
The power level that receives of the traffic transmission request response signal of high priority link makes transmitter concession judgement.
Thus, in certain embodiments, the expection receiver of higher priority link is by based on its service quality (QoS)
The transmitting that information controllably arranges its request responding power level and just can affect lower priority link judges.Such as, if with
The level of the QoS information instruction increase that higher priority link is corresponding, then the expection receiver of higher priority link can increase
Its request responding power level big, so that lower priority link more likely realizes transmitter and gives way and in this traffic segment
Do not transmit, thus increase the traffic signaling on higher priority link will in this traffic gap successful probability.
A kind of illustrative methods of operation the first wireless terminal according to some embodiments, including: receive and from the second nothing
Line terminal is to the corresponding quality of service information of the communication link of the first wireless terminal;Receive the transmission from the second wireless terminal
Request;Request response transmission power level is determined based on the quality of service information received;And in response to the transmission request received
Power level determined by with transmits request response.A kind of according to exemplary first in the peer communication system of some embodiments
Wireless terminal, including: at least one processor, it is configured to: receive and from the second wireless terminal to the first wireless terminal
The quality of service information that communication link is corresponding;Receive the transmission from the second wireless terminal to ask;Based on the Service Quality received
Amount information determines request response transmission power level;And in response to receive transmission request with determined by power level transmission
Request response.This exemplary first wireless terminal also includes the memorizer coupleding at least one processor described.
Although the superincumbent general introduction of various embodiments is discussed, it should be appreciated that may not all embodiments all
Including identical feature, and those described above feature there are some to be not required in that, but in certain embodiments may be used
Can be desirable.The benefit of other features numerous, embodiment and various embodiment is begged in ensuing detailed description
Opinion.
Accompanying drawing is sketched
Fig. 1 is the figure of the exemplary peer-to-peer networks such as such as self-organizing (ad-hoc) communication network according to exemplary embodiment
Show.
Fig. 2 is the flow chart of the illustrative methods of the first wireless terminal in operation peer communication system.
Fig. 3 is exemplary first wireless terminals such as the mobile node such as supporting peer-to-peer communications according to exemplary embodiment
Diagram.
Fig. 4 is illustrated example wireless terminal, exemplary peer-to-peer communication link and the diagram of exemplary signaling, and lists
The table of exemplary requests based on the quality of service information response signal power level variation judged for affecting transmitter to give way.
Fig. 5 is first operation includes from the second wireless terminal to the system of the first wireless link of the 3rd wireless terminal
The flow chart of the illustrative methods of wireless terminal, described first communication link have than from the 4th wireless terminal to the first wireless end
The second higher priority of communication link of end.
Fig. 6 is exemplary first wireless terminals such as the mobile node such as supporting peer-to-peer communications according to exemplary embodiment
Diagram.
Fig. 7 be illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling in order to explain orally root
Diagram according to each side that the receiver of some embodiments is given way.
Fig. 8 is first operation includes from the second wireless terminal to the system of the first wireless link of the 3rd wireless terminal
The flow chart of the illustrative methods of wireless terminal, described first communication link have than from the first wireless terminal to the 4th wireless end
The second higher priority of communication link of end.
Fig. 9 is exemplary first wireless terminals such as the mobile node such as supporting peer-to-peer communications according to exemplary embodiment
Diagram.
Figure 10 be illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling in order to explain orally root
Diagram according to each side that the transmitter of some embodiments is given way.
Figure 11 be illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling in order to explain orally root
Diagram according to each side that the transmitter of some embodiments is given way.
Figure 12 be illustrate use in certain embodiments exemplary time base and the diagram of frequency structure.
Figure 13 is the flow chart of the illustrative methods of the first wireless terminal in operation peer communication system.
Figure 14 is the diagram of exemplary first wireless terminal according to exemplary embodiment.
Figure 15 can and the most in fig. 14 institute diagrammatic first wireless terminal in use
Module assembled part.
Figure 16 is the flow chart of the illustrative methods of the first wireless terminal in operation peer communication system.
Figure 17 is the diagram of exemplary first wireless terminal according to exemplary embodiment.
Figure 18 can and the most in fig. 17 institute diagrammatic first wireless terminal in use
Module assembled part.
Figure 19 is the flow chart of the illustrative methods of the first wireless terminal in operation peer communication system.
Figure 20 is the diagram of exemplary first wireless terminal according to exemplary embodiment.
Figure 21 can and the most in fig. 20 institute diagrammatic first wireless terminal in use
Module assembled part.
Describe in detail
Fig. 1 is the diagram of the exemplary peer-to-peer networks 100 such as the such as ad-hoc communication network according to exemplary embodiment.Should
Exemplary network 100 is supported such as to move and/or the communication equipment such as static wireless terminal carries out equity traffic signaling.Exemplary web
Network 100 is supported, on the basis of by gap, the traffic air link resources such as such as traffic segment are carried out distributing scheduling.Exemplary equity
Network 100 includes multiple wireless device (peer communications devices 1 102, peer communications devices 2 supporting equity traffic signaling
104, peer communications devices 3 106, peer communications devices 4 108 ..., peer communications devices N 110).In some embodiments
In, network 100 includes reference signal transmitter 116, such as beacon.Wireless device in communication network 100 (102,
104,106,108 ..., 110) connection (such as peer to peer connection) can be set up each other, generate and transmit traffic transmission request signal,
Receive and process traffic transmission request signal, make receiver concession and judge, generate and transmit traffic transmission request response signal,
Receive and process traffic transmission request response signal, make transmitter give way judge, receive equity telephone traffic signal, and transmit right
Deng telephone traffic signal.In certain embodiments, the power level of transmission request response signal is the function of quality of service information.Respectively
Plant in embodiment, calculate dynamic receiver concession threshold value and also use it for making receiver concession judgement.In certain embodiments,
Calculate dynamic transmitter concession threshold value and use it for making transmitter concession judgement.Base junction when employing reproduction in network 100
Structure.In certain embodiments, such as from the reference signal such as OFDM beacon signal of reference signal transmitter 116 by wireless device
Be used for relative to time based structures synchronize.Alternatively, be used for time based structures carry out synchronize signal and may originate from another and set
Standby, such as GPS transmitter, base station or another peer device.The time based structures bag used in exemplary communication network 1000
Include multiple individual traffic gap.
Fig. 2 is flow process Figure 200 of the illustrative methods of the first wireless terminal in operation peer communication system.Operation starts
In step 202, it is powered at this first wireless terminal, initializes, and be connected with the second wireless terminal foundation.Second and first nothing
Line terminal can be and mobile device really sometimes.
Operate and march to step 204 from beginning step 202.In step 204, the first wireless terminal monitors is from the first nothing
Line terminal has the control signaling of the second wireless terminal of connection therewith.Step 204 and can include sub-step the most really
206 and 208.In sub-step 206, the first wireless terminal reception with from the second wireless terminal to the communication chain of the first wireless terminal
The quality of service information that road is corresponding.In certain embodiments, quality of service information is by if corresponding with transmission request
Business gap in such as in the traffic segment corresponding with this request after this request by the second wireless terminal transmission
Function to the data type of the first wireless terminal.In certain embodiments, quality of service information was to wait for by the second wireless end
End sends the function of the data volume of the first wireless terminal to.In sub-step 208, the first wireless terminal reception is wireless from second
The transmission request of terminal.In certain embodiments, quality of service information and transmission request receive in separate signal.?
In some other embodiment, quality of service information and transmission request receive in individual signals.Operation is advanced from step 204
To step 210.
In step 210, the first wireless terminal determine whether receive from second during the supervision of step 204 wireless
The transmission request of terminal.If receiving the transmission from the second wireless terminal to ask, then operate and advance to step from step 210
212;Otherwise, operation advances to connect node A 226 from step 210.
Returning step 212, in the step 212, the first wireless terminal performs receiver (RX) concession and judges.Stand fast judgement
It it is the judgement representing and can proceeding expection traffic transmission for the viewpoint of the first wireless terminal.RX concession judgement is to represent
For the viewpoint of the first wireless terminal, the second wireless terminal should not proceed its expection traffic transmission to the first wireless terminal
Judgement.Operation advances to step 214 from step 212.
Give way if the judgement of step 212 is RX, then operate and march to connect node A 226 from step 214;Otherwise, behaviour
Make to advance to step 216 from step 214.In the step 216, the first wireless terminal based on the quality of service information received determine please
Seek response transmission power level.In certain embodiments, determine that request response through-put power includes when the service quality letter received
Breath instruction increase with from the second wireless terminal to true from previously during the service quality that the communication link of the first wireless terminal is corresponding
Fixed request response transmission power level plays increase request response through-put power.In certain embodiments, determine that request response passes
Defeated power includes that the quality of service information instruction when receiving reduces and from the second wireless terminal to the communication chain of the first wireless terminal
From previously determined request response transmission power level, request response through-put power is reduced during the corresponding service quality in road.?
In various embodiments, determine that request response transmission power level includes: i) power that receives based on transmission request determines that minimum please
Seek response transmission power level;And ii) in the ban before the request response transmission power level that transmits exceed determined by minimum please
Response transmission power level and quality of service information instruction is asked to reduce and from the second wireless terminal to the communication of the first wireless terminal
During the corresponding service quality of link, from previously determined request response transmission power level, reduce request response through-put power
Level.
Operation advances to step 218 from step 216, in this first wireless terminal responses in the biography received in sub-step 208
Defeated request with determined by power level transmit request response.The most in a step 220, the first wireless terminal monitors is from second
Instruction second wireless terminal of wireless terminal is not it is determined that carry out launching the pilot signal given way.In the exemplary embodiment,
If the second wireless terminal determines to carry out launching to give way, then the second wireless terminal does not transmit pilot signal.Operation is from step 220 row
Enter step 222.
If the pilot tone from the second wireless terminal being detected in the supervision of step 220, then operate and advance from step 222
To step 224;Otherwise, action row enters connection node A 226.Return in step 224, in step 224, the first wireless terminal
The equity from the second wireless terminal is monitored in the traffic segment corresponding with the transmission request received and the request response transmitted
Telephone traffic signal.The supervision of step 224 can and include receiving and recover the equity words from the second wireless terminal the most really
Business signal.Operate and advance to connect node A 226 from step 224.
Operate the input advancing to step 204 from connection node A 226, in this first wireless terminal monitors from the second nothing
Such as corresponding with another traffic gap control signaling of line terminal.
Fig. 3 is exemplary first wireless terminals such as the mobile node such as supporting peer-to-peer communications according to exemplary embodiment
The diagram of 300.Wireless receiver module 302 that exemplary first wireless terminal 300 includes being coupled via bus 312,
Wireless transmitter module 304, processor 306, user's I/O equipment 308 and memorizer 310, each unit can be exchanged in bus 312
Data and information.In certain embodiments, the first wireless terminal 300 also includes the network interface 307 being also coupled to bus 312.
Network interface 307 makes the first wireless terminal 300 can coupled to network node and/or because of spy via backhaul network when being implemented
Net.
Memorizer 310 includes routine 318 and data/information 320.The processors 306 such as such as CPU perform in memorizer 310
Routine 318 and use the data/information 320 in memorizer 310 to control operation the side of realization of the first wireless terminal 300
The method of flow process Figure 200 of method, such as Fig. 2.
User's I/O equipment 308 includes such as microphone, keyboard, keypad, mouse, switch, camera, speaker, display
Deng.User's I/O equipment 308 makes the operator of the first wireless terminal 300 can input data/information, access output data/information
And control at least some function of the first wireless terminal 300.
The such as wireless receiver module such as OFDM and/or cdma receiver 302 is coupled to reception antenna 314, the first nothing
Line terminal 300 receives the signal from other communication equipments via this antenna.The signal received includes connection establishment signal, connection
Maintenance signal, transfer request signal and telephone traffic signal.
The wireless transmitter module 304 such as such as OFDM and/or CDMA transmitter are coupled to launch antenna 316, the first nothing
Line terminal 300 launches signal via this day other communication equipment of alignment.The signal launched includes connection establishment signal, connects and safeguard
Signal and traffic transmission request response signal.In certain embodiments, Receiver And Transmitter uses the same antenna.
Routine 318 includes Communications routines 322 and control routine 324.Communications routines 322 realizes by the first wireless terminal 300
The various agreements used.Control routine 324 includes that multiple quality of service information recovers module 326, transmission request detection module
328, receiver concession module 330, transmission request responding power level determination block 332, request response signal generation module 334
And request response transmitter control module 336.Transmission request responding power level determination block includes in certain embodiments
Minimum Power Level determines that submodule 338 and power level adjust one or more in submodule 340.
Base/frequency structure information 342 when data/information 320 includes, current connection information 348, detection transmission request 350,
With detection transmission request the 350 corresponding quality of service information 352 recovered, receiver concession judgement 354, storage previous
Quality of service information 356, the previous Request responding power level information 358 of storage, minimum request response transmission power level
360 and determined by ask responding power level 362.Shi Ji/frequency structure information 342 includes and base junction during reproduction equity
The information (traffic transmission gap 1 information 344 ..., traffic transmission gap n information 346) that multiple traffic transmission gaps in structure are corresponding.
Traffic transmission gap 1 information includes that mark is for transmitting the air link resources of transfer request signal, for transmitting request response letter
Number air link resources and such as traffic segment etc. for transmitting the information of the air link resources of telephone traffic signal.Currently connect
Connect information 348 and include identifying the information of the connection that the first wireless terminal 300 currently keeps, such as with the second wireless terminal and first
The connection identifier (CID that connection between wireless terminal 300 is associated.In certain embodiments, the particular air in transmission request block
Link circuit resource and transmission request response block in particular airlink resource such as according to time base/frequency structure information be connected mark
Know symbol to be associated.In certain embodiments, the priority level being associated with connection identifier (CID can and the most such as
Jump sequence according to realizing changes between a traffic transmission gap and another.
Quality of service information recovers module 326 and recovers and from the second wireless terminal to such as mobile device from the signal received
Deng the quality of service information that the communication link of the first wireless terminal is corresponding.Transmission request detection module 328 is from the signal received
Detection is asked from the second wireless terminal to the transmission of the first wireless terminal 300.Detection transmission request 350 is the output of module 328,
And the quality of service information 352 recovered is the output of module 326.In certain embodiments, quality of service information and transmission please
Seeking Truth receives in separate signal, and in other embodiments, quality of service information and transmission request are at individual signals
Middle reception.
In certain embodiments, quality of service information is to wait for being sent to the first wireless terminal 300 by the second wireless terminal
The function of data type.In certain embodiments, quality of service information is to wait for being sent to the first nothing by the second wireless terminal
The function of the data volume of line terminal.
Transmission request responding power level determination block 322 determines request response transmission based on the quality of service information received
Power level.Determined by ask responding power level 362 be the output of module 332.In certain embodiments, transmission request rings
Power level determination module 332 is answered to be configured to when quality of service information instruction increases wireless to first with from the second wireless terminal
From previously determined request response transmission power level, increase request during the corresponding service quality of the communication link of terminal to ring
Answer transmission power level.In certain embodiments, transmission request responding power level determination block 332 is configured to work as Service Quality
Amount information instruction reduce with from the second wireless terminal to during the service quality that the communication link of the first wireless terminal is corresponding from elder generation
The front request response transmission power level determined plays reduction request response transmission power level.
The Minimum Power Level included in certain embodiments determines that submodule 338 is based on corresponding transmission request and receives merit
Rate level determines minimum request response transmission power level.Minimum request response transmission power level 360 is the defeated of submodule 338
Go out.The power level included in certain embodiments adjusts submodule 340 and is configured to: i) previously determined request response passes
Defeated power level exceed determined by minimum request response transmission power level, and ii) service quality the recovered letter that receives
Breath instruction reduce with during from the second wireless terminal to the service quality that the communication link of the first wireless terminal 300 is corresponding, from elder generation
The front request response transmission power level determined plays reduction request response transmission power level.Previously QoS information 356, previously please
Ask responding power level information 358 and determined by minimum request response transmission power level 360 be that power level adjusts son
The input of module 340.
Receiver concession module 330 be made whether to transmit the transmission request that receives being directed to the first wireless terminal 300
The judgement of request response.Receiver is given way and is judged 354 outputs being receiver concession module 330.It is not received what machine was given way
Judge the judgement being to continue with carrying out intended asked traffic transmission.When this judgement is not to be received machine concession, transmission please
Responding power level is asked to determine 332 power levels determining request response signal.By using adjustable request responding power electricity
Flat, just can affect other transmitters concessions connected such as such as lower priority connection and judge, thus change the link of their own
On the probability that can be successfully recovered of expection traffic transmission.Thus, determined by, transmission request responding power level value is permissible
And the most really can affect the first wireless terminal 300 will experience for recovering to be directed to the traffic of the first wireless terminal 300
Interference level.
Request response generation module 334 generates such as RX echo signal when receiver concession module 330 determines and stands fast
Deng request response signal, instruction is to the positive response receiving traffic transmission request being directed to the first wireless terminal 300.Request rings
Answer transmitter control module 336 control wireless transmitter module 304 receiver concession module 330 determine stand fast time in response to
Receive transmission request with determined by request response transmission power level transmit generate request response.
Fig. 4 is the diagram 400 of illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling, and
List exemplary requests based on the quality of service information response signal power level variation judged for affecting transmitter to give way
Table 450.Diagram 400 illustrates 4 exemplary peer wireless terminal (WT A 402, WTB 404, WT C 406 and WT D
408).These WT (402,404,406,408) are arbitrary in the reciprocity WT of such as Fig. 1.WT B 404 is the WT of such as Fig. 3
300 and/or realize the wireless terminal of the method according to flow process Figure 200 of Fig. 2.There is between WT A 402 and WT B 404
One peer-to-peer communication link 410;And there is the second peer-to-peer communication link 412 between WT C 406 and WT D 408.For showing
The purpose of example, it is assumed that the priority of the first communication link 410 is higher than the priority of the second communication link 412.Correspondingly, WT C
406 make transmitter concession based on the request response signal from higher priority link WT B 404 judges.
For purposes of this example, it is assumed that WT A 402 wants and wishes that the WT C406 transmitting traffic to WT D 408 makes
By identical air link resources such as, traffic segment transmits traffic to WT B 404 in identical traffic gap.Also
Judging assuming that perform scheduling in a decentralized manner, such as receiver is given way, and judging gives way with transmitter judges.
WT A 402 transmits transmission request 414 to WT B 404.Transmission request 414 transmitting service quality information QoSAB
416.WT C 406 transmits transmission request 422 to WT D 408.Transmission request 422 transmitting service quality information QoSCD424.?
In some other embodiment, quality of service information is passed in separate signal with transmission request.
Give way assuming that WT B 404 and WT D 408 decides not to perform receiver, and both generate request response letter
Number.WT B 404 generates with power level PRRBA420 request response signals 418 transmitted, wherein PRRBA420 is QoSAB 416
Function.WT D 408 generates with power level PRRDC428 request response signals 426 transmitted, wherein PRRDC428 is QoSCD
The function of 424.WT C 406 detects the request response signal 426 corresponding with the link 412 of their own and and higher prior
The request response signal 418 that level link 410 is corresponding, and make transmitter concession judgement based on the signal (418,426) received.
Transmitter concession technology is so that PRRBA420 increase and other conditions keep constant, then WT C 406 will carry out transmitter concession
And prevent the probability increase transmitting traffic in traffic gap.Thus, WT B 404 is by such as in response to the link of their own
Higher QoS grade increase its request responding power can effectively increase lower priority link can by carry out transmitter concession
Can property.This can increase the probability that the traffic signaling on the first link 410 will successfully be passed on.
Table 450 illustrates 3 exemplary traffic gaps, its follow-up intertexture that may correspond to illustrate 400.First row 452 identifies
Traffic gap, secondary series 454 identifies QoSAB454 its can be the QoS 416 of diagram 400, and the 3rd row 456 identify
PRRBAIt can be the P of diagram 400RRBA420.The first row 458 identifies in traffic gap 1, QoSABInstruction grade 3
This corresponds to the low QoS grade of such as best effort traffic, and asks responding power level PRRBAFor value P1, wherein P1 is just
Value.Second row 460 identifies in traffic gap 1, QoSABInstruction grade 1 this correspond to the high QoS etc. of such as voice telephone traffic
Level, and ask responding power level PRRBAFor value P2, wherein P2 > P1, and P2 be on the occasion of.The third line 462 identifies in traffic gap 3
In, QoSABInstruction grade 2 this correspond to the middle QoS grade of data traffic of such as time-sensitive, and ask to respond merit
Rate level PRRBAFor value P3, wherein P3 < P2, and P3 be on the occasion of.
In this example, the Traffic type that QoS grade is to be passed on expection is associated.In certain embodiments, QoS is
Function etc. data volume to be sent.In certain embodiments, determine request response through-put power to include based on corresponding transmission to ask
The power that receives asked determines minimum request response through-put power, and exceedes institute at i) previously determined request responding power level
The minimum request response transmission power level determined and ii) quality of service information instruction reduces the clothes corresponding with this communication link
During business quality, reduction through-put power from the request response transmission power level previously transmitted.
Fig. 5 is operation includes from the second wireless terminal to the system of the first wireless communication link of the 3rd wireless terminal
The flow chart 500 of the illustrative methods of the first wireless terminal, described first communication link has than from the 4th wireless terminal to
The second higher priority of communication link of one wireless terminal.First, second, third and fourth wireless terminal be such as support right
Mobile radio terminal Deng communication.Operation start from step 502, be powered at this first wireless terminal, and with the 4th wireless end
End sets up the second communication link.Operation advances to step 504 from step 502.
In step 504, the first wireless terminal reception is from the signal of the second wireless terminal, such as from the second wireless terminal
It is sent to the transfer request signal of the 3rd wireless terminal.Operation advances to step 506 and step 508 from step 504.In step
In 506, the first wireless terminal reception is asked from the transmission of the 4th wireless terminal, such as, be sent to first from the 4th wireless terminal
The transmission request of wireless terminal.In step 508, the first wireless terminal reception from the 4th wireless terminal with the second link phase
Corresponding quality of service information.In certain embodiments, the quality of service information received is to wait for by the 4th wireless terminal transmission
Function to the data volume of the first wireless terminal.In certain embodiments, quality of service information indicates and at the 4th wireless terminal
Wait and be transmitted to the service quality rating that the Traffic type of the first wireless terminal is corresponding.
In certain embodiments, the transmission of step 506 asks the quality of service information of summation step 508 to be in same signal
Pass on.In some other embodiment, the transmission of step 506 asks the quality of service information of summation step 508 to be to believe in difference
Pass in number.
Operation advance to step 510 from step 506 and 508, this first wireless terminal according in step 504 from the second nothing
Signal that line terminal receives and from the 4th wireless terminal reception to transmit a request to estimate the quality of the second communication link.
In certain embodiments, the estimation quality of the second communication link is the function of the present communications speed that the second communication link is supported.
In certain embodiments, the estimation quality of the second communication link is the function of current signal of the second communication link.Exist subsequently
In step 512, the first wireless terminal is based on i) corresponding with the second communication link historical link quality information or ii) with the
At least one in the quality of service information that two communication links are corresponding is dynamically generated concession threshold value, such as receiver (RX) and allows
Step threshold value.In various embodiments, it is dynamically generated concession threshold value and includes that the quality of service information instruction when receive increases and the
The threshold value less than previous threshold is generated during the corresponding service quality rating of two communication links.In various embodiments, dynamically
Generate concession threshold value and include that the quality of service information instruction when receiving reduces the service quality etc. corresponding with the second communication link
The threshold value higher than previous threshold is generated during level.In certain embodiments, historical link quality information is included in previous time interval
The average data rate that period the second communication link is supported.Average data rate is such as based on index average data rate or Moving Window
Average data rate.Previous time interval the most only includes the time interval wherein having actually occurred data transmission,
Such as do not occur the data transmission period given way interval about the second communication link.Alternatively, previous time interval is real at some
Execute each in the interval of the institute's supporting rate both having included wherein there occurs estimation that data transmit in example, also include wherein sending out
The interval of institute's supporting rate of the raw estimation given way.In some these type of embodiments, when calculating the average data rate supported,
Depend on there occurs data transmission about specific transmission interval or there occurs concession differently weighting and this specific transmission range
Between institute's supporting rate of corresponding estimation.Operation advances to step 514 from step 512.
In the step 514, the first wireless terminal estimation based on the second communication link quality and the threshold that is dynamically generated
Value be made whether to transmit the judgement of transmission request response.Step 514 includes sub-step 516,518,520 and 522.In sub-step
In 516, the estimation quality of the second communication link is compared by the first wireless terminal with the threshold value being dynamically generated.If second
The estimation quality of communication link exceedes the threshold value being dynamically generated, then operate and advance to sub-step 520 from sub-step 518;Otherwise,
Operation advances to sub-step 522 from sub-step 518.
Returning sub-step 520, in sub-step 520, the first wireless terminal determines to transmit transmission request response.Operation is from son
Step 520 marches to step 523.
Returning sub-step 522, in sub-step 522, the first wireless terminal determines not transmit transmission request response.Operate from
Sub-step 522 advances to connect node A 530.
Returning step 523, in step 523, the first wireless terminal generates transmission request response and is transferred to the 4th
Wireless terminal.Operation advances to step 524 from step 523.In step 524, the first wireless terminal monitors is wireless from the 4th
Instruction the 4th wireless terminal of terminal is not it is determined that carry out transmitter (TX) and give way and expect and send traffic number to the first wireless terminal
According to pilot signal.Operation advances to step 526 from step 524.In step 526, if the first wireless terminal has detected that
From the 4th wireless terminal instruction the 4th wireless terminal it is determined that to the first wireless terminal proceed its expection traffic transmission
Pilot signal, then operate and advance to step 528 from step 526;Otherwise, operation advances to connect node A from step 526
530。
Return in step 528, in step 528, the first wireless terminal in the transmission request such as received with step 506 and
The request that step 521 transmits responds in corresponding traffic segment and monitors the reciprocity telephone traffic signal from the 4th wireless terminal.In step
In rapid 528, the first wireless terminal is operable to receive from the reciprocity telephone traffic signal of the 4th wireless terminal and is operable to attempt
Recover the traffic data being communicated.Operate and advance to connect node A 530 from step 528.Operate and advance from connection node A 530
To step 504.
Fig. 6 is exemplary first wireless terminals such as the mobile node such as supporting peer-to-peer communications according to exemplary embodiment
The diagram of 600.First wireless terminal 600 is such as to include from the second wireless terminal to the first radio communication of the 3rd wireless terminal
Wireless terminal in the system of link, described first communication link have than from the 4th wireless terminal to the first wireless terminal 600
The second higher priority of communication link.Exemplary first wireless terminal 600 includes the nothing being coupled via bus 612
Line receiver module 602, wireless transmitter module 604, processor 606, user's I/O equipment 608 and memorizer 610, each unit
Can in bus 612 interchange of data and information.In certain embodiments, the first wireless terminal 600 also includes being also coupled to bus
The network interface 607 of 612.Network interface 607 makes the first wireless terminal 600 can coupled to via backhaul network when being implemented
Network node and/or the Internet.
Memorizer 610 includes routine 618 and data/information 620.The processors 606 such as such as CPU perform in memorizer 610
Routine 618 and use the data/information 620 in memorizer 610 to control operation the side of realization of the first wireless terminal 600
The method of the flow chart 500 of method, such as Fig. 5.
User's I/O equipment 608 includes such as microphone, keyboard, keypad, mouse, switch, camera, speaker, display
Deng.User's I/O equipment 608 makes the operator of the first wireless terminal 600 can input data/information, access output data/information
And control at least some function of the first wireless terminal 600.
The such as wireless receiver module such as OFDM and/or cdma receiver 602 is coupled to reception antenna 614, the first nothing
Line terminal 600 receives the signal from other communication equipments via this antenna.The signal received includes connection establishment signal, connection
Maintenance signal, transfer request signal and telephone traffic signal.Wireless receiver module 602 receives sometimes from the second wireless terminal
Signal is such as directed to the transfer request signal of the 3rd wireless terminal from the second wireless terminal, and from the 4th wireless end
The transfer request signal of end is such as directed to the transfer request signal of the first wireless terminal from the 4th wireless terminal.At some
In embodiment, transfer request signal transmitting service quality information.In certain embodiments, relative with connection and/or transmission request
The quality of service information answered is passed in signal separate with transfer request signal, and is also by wireless receiver module
602 receptions.
The wireless transmitter module 604 such as such as OFDM and/or CDMA transmitter are coupled to launch antenna 616, the first nothing
Line terminal 600 launches signal via this day other communication equipment of alignment.The signal launched includes connection establishment signal, connects and safeguard
Signal and traffic transmission request response signal.In certain embodiments, Receiver And Transmitter uses the same antenna.
Routine 618 includes Communications routines 622 and control routine 624.Communications routines 622 realizes by the first wireless terminal 600
The various agreements used.Control routine 624 includes communication link quality estimation module 626, transmission request detection module 628, passes
Defeated request measurement module 629, signal-to-noise ratio (SNR) estimation module 631, quality of service information recover module 630, concession threshold generation module
632, receiver concession module 634 and historical link quality determination module 636.
Base/frequency structure information 638, current connection information 644, detection transmission solicited message when data/information 620 includes
(detection transmission request 1 information 646 ..., detection transmission request N information 650), the quality of service information recovered accordingly are (extensive
The quality of service information N652 that the quality of service information 1 648 ... appeared again recovers), historical link quality information 654, dynamically
The threshold value 656 of ground generation and receiver concession judgement 658.Shi Ji/frequency structure information 638 includes and base during reproduction equity
Information (traffic transmission gap 1 information 640 ..., the traffic transmission gap n information that multiple traffic transmission gaps in structure are corresponding
642).Traffic transmission gap 1 information 640 includes that mark is for transmitting the air link resources of transfer request signal, asking for transmission
Seek the letter of the response air link resources for transmitting telephone traffic signal such as the air link resources of signal and such as traffic segment
Breath.Current connection information 644 includes the information identifying the connection that the first wireless terminal 600 currently keeps, such as wireless with the 4th
The connection identifier (CID that connection between terminal and the first wireless terminal 600 is associated.In certain embodiments, in transmission request block
Particular airlink resource and transmission request response block in particular airlink resource such as according to time base/frequency structure letter
Breath is associated with connection identifier (CID.The priority level being associated with connection identifier (CID can and the most such as according to reality
Existing jump sequence changes between a traffic transmission gap and another.
Communication link quality estimation module 626 estimates the communication between another wireless terminal and the first wireless terminal 600
The quality of link.Such as, communication link quality estimation module 626 according to from the second wireless terminal reception to signal and from
Four wireless terminal reception to transmission request response estimate the quality of the second communication link.In certain embodiments, from second
Wireless terminal reception to signal be the transfer request signal being sent to the 3rd wireless terminal from the second wireless terminal.In various realities
Executing in example, communication link quality estimation module 626 present communications speed based on the second communication link support estimates that second leads to
The quality of letter link.In various embodiments, communication link quality estimation module 626 current noise based on the second communication link
Than the quality estimating the second communication link.Signal-to-noise ratio (SNR) estimation module 631 such as uses the measurement to detection transfer request signal
Determine the current SNR of the second communication link.
Concession threshold generation module 632 is dynamically generated such as transmitter (RX) based at least one in the following
The concession threshold values such as concession threshold value: corresponding to the chain between another equipment and the first wireless terminal such as the such as the 4th wireless terminal
The historical link quality information of road the such as second link and ii) corresponding to another equipment such as the such as the 4th equipment
And the quality of service information of the such as second link of the link between the first wireless terminal.
In certain embodiments, concession threshold generation module 632 is configured to increase and the in quality of service information instruction
The threshold value less than previous threshold is generated during the corresponding service quality of two communication links.In certain embodiments, concession threshold value is raw
Become module 632 to be configured to when quality of service information instruction reduces the service quality corresponding with the second communication link and generate height
Threshold value in previous threshold.
Transmission request detection module 628 detects the transfer request signal received, such as from the expection of the second wireless terminal
Transmission request to the 3rd wireless terminal and the expection from the 4th wireless terminal please to the transmission of the first wireless terminal 600
Ask.Transmit request measurement module 629 measurement detection transfer request signal receives power level.Detection transmission request 1 information 646
Detection module 628 and/or the output of measurement module 629 is included with detection transmission request N information 650.
Quality of service information recovers module 630 and recovers corresponding with connection and/or transmission request according to the signal received
Quality of service information.In certain embodiments, quality of service information transmits in transfer request signal, and implements at other
In example, quality of service information and transfer request signal transmit in separate signal.In certain embodiments, service quality
Information is to wait for being sent to the function of the data volume of the first wireless terminal 600 by the 4th wireless terminal.In certain embodiments, clothes
The service that business quality information instruction is corresponding with waiting the Traffic type being transmitted to the first wireless terminal at the 4th wireless terminal
Credit rating.The quality of service information 1 648 recovered and the quality of service information N 652 recovered represent recovery module 630
Output.
Receiver concession module 634 asks corresponding leading to based on the transmission that receives being directed to the first wireless terminal 600
It is right that the letter estimation quality of link the such as second communication link and the threshold value being dynamically generated be made whether to transmit
The judgement of the transmission request response of this request.Receiver is given way and is judged 648 outputs being module 634.In various embodiments, connect
Receipts machine concession module 634 is configured to compare the estimation quality of the second communication link with the threshold value being dynamically generated, and
Determine when this estimation quality comparing instruction the second communication link exceedes the threshold value being dynamically generated to transmit transmission request response.
Historical link quality determination module 636 determines previously another equipment such as the such as the 4th equipment during time interval
And the communication link between the first wireless terminal is such as, the average data rate that the second communication link is supported.One
In a little embodiments, module 636 determines average data rate based on index, and in other embodiments, module 636 determines Moving Window
Average data rate.In certain embodiments, average computation only uses and has actually occurred data transmission the most on the link
On the second link, such as there is not the rate information of the time interval given way.In some other embodiment, averagely count
Calculate each in the institute's supporting rate including both using the interval estimation that wherein there occurs transmission, also use and wherein there occurs
The interval institute's supporting rate given way.In some these type of embodiments, depend on whether to there occurs concession, to specific estimation
Institute's supporting rate uses different weights.
Fig. 7 be illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling in order to explain orally root
Diagram 700 according to each side that the receiver of some embodiments is given way.Diagram 700 illustrates 4 exemplary peer wireless terminal
(WT A 702, WT B 704, WT C 706 and WT D 708).These WT (702,704,706,708) are the right of such as Fig. 1
Arbitrary Deng in WT.WT D 708 is the WT600 of such as Fig. 6 and/or realizes the nothing of the method according to the flow chart 500 of Fig. 5
Line terminal.There is the first peer-to-peer communication link 710 between WT A 702 and WT B704;And there is WT C 706 and WT D
The second peer-to-peer communication link 712 between 708.For exemplary purposes, it is assumed that the priority of the first communication link 710 is higher than the
The priority of two communication links 712.
For purposes of this example, it is assumed that WT A 702 wants and wishes that the WT C706 transmitting traffic to WT D 708 makes
By identical air link resources such as, traffic segment transmits traffic to WT B 704 in identical traffic gap.Also
Judging assuming that perform scheduling in a decentralized manner, such as receiver is given way, and judging gives way with transmitter judges.
WT A 702 transmits transmission request 714 to WT B 704.Transmission request 714 transmitting service quality information QoSAB
716.WT C 706 transmits transmission request 720 to WT D 708.Transmission request 720 transmitting service quality information QoSCD722.?
In some other embodiment, quality of service information is passed in separate signal with transmission request.In certain embodiments,
Quality of service information QoSCD722 are to wait for being sent to the function of the data volume of WT D 708 by WT C 706.In some embodiments
In, quality of service information QoSCD722 instructions wait the type of the traffic data being sent to WT D 708 by WT C 706, such as
The traffic data etc. that the sensitive traffic data of voice, other times, time are insensitive.
Give way because it is neighbouring limit priority link assuming that WT B 704 decides not to perform receiver, and by
This generates request response signal 718 and sends signal 718 to WT A 702.Request response signal 718 notify WT A 702 from
For the viewpoint of WT B 704, it can proceed intended asked traffic transmission to WT B 704.
If allowed from WTC's 706 in the case of the expectation traffic transmission of WT A 702 to WT B 704 existing
Expection traffic transmission proceeds, then WT D 708 asks connecing of (714,720) as measured the transmission received with indicating by frame 724
Receive power, and determine the received signal quality value of estimation.The received signal quality value estimated is the such as second communication link 712
Signal to noise ratio.Wireless terminal D 726 includes the historical link quality information 726 of storage.According to the feature of some embodiments, WT D
708 as indicated by frame 728 based on historical link quality information 726 and quality of service information QoSCD722 are dynamically generated reception
Machine concession threshold value.WT D 708 judges, such as at the received signal quality estimated as made receiver concession with indicating by frame 730
Less than determining in the case of the threshold value 728 being dynamically generated to carry out RX concession.If WT determines to carry out RX concession, then WT D 708
Do not transmit TX to WT C 706 and ask response 732.But, if WT D 708 decides not to perform RX and gives way, then WT D 708 is raw
Becoming transmission request response signal 732 and be transferred to WT C 706, this signal 732 indicates the viewpoint from WT D to WT C 706
For its can to WT D 708 proceed its expection traffic transmission.
In certain embodiments, it is dynamically generated threshold value to include as quality of service information QoSCD722 instructions increase and second
Generate during the corresponding service quality of communication link 712 less than such as corresponding to the threshold value of previous threshold of previous traffic gap.By
This, other conditions given keep constant, and the higher QoS in response to the second link 712 needs, and this type of lower threshold makes WT D
708 will be less likely to carry out RX concession in this gap, and will more have from the expection traffic transmission of WT C 706 to WT D 708 can
Can occur in this traffic transmission gap.
In certain embodiments, it is dynamically generated threshold value to include as quality of service information QoSCD722 instructions reduce and second
Generate during the corresponding service quality of communication link 712 higher than such as corresponding to the threshold value of previous threshold of previous traffic gap.By
This, other conditions given keep constant, and the relatively low QoS in response to the second link 712 needs, and this type of higher thresholds makes WT D
708 will be more likely to carry out RX concession in this gap, and will be compared with can not from the expection traffic transmission of WT C 706 to WT D 708
Can occur in this traffic transmission gap.
In certain embodiments, communication link 712 during historical link quality information 726 is included in previous time interval
The average data rate held.In certain embodiments, use the type of index numbers average.In certain embodiments, use Moving Window average.
In various embodiments, only use when calculating average data rate and on the second link 712, actually occurred data biography therebetween
Defeated such as, wherein there is not the corresponding data transfer rate of time interval given way about the second link 712.Other one
In a little embodiments, use and each the corresponding data in multiple previous traffic transmission intervals when calculating average data rate
Rate, irrespective of whether there occurs concession.In some these type of embodiments, differently weight when calculating average data rate and wherein send out
Give birth to the speed of the interval speed of concession and the interval corresponding to wherein having actually occurred data transmission.
A kind of example receiver (RX) concession way be will now be described.If considering RY(t) < max (β (Y) RA(Y,
T), RRT) then link Y will carry out RX concession, wherein RYT () is the rate estimates of gap t link Y, β (Y) is the QoS letter of link Y
The function of breath, RA(Y is t) that Mean Speed is such as based on the exponential average that previous gap is the link Y that gap t calculates or slip
Window is average, and RRTBe RX concession rate-valve value such as, fixing RX concession rate-valve value.β (Y) is to based on passing information
The scaling factor that speed is average, and RRTIt it is the fixing minimum acceptable rate judged of giving way for RX.In the context of Fig. 7,
Consider that the second link 712 is link Y, formula RY(t) < max (β (Y) RA(Y, t), RRT) can be used for frame 730 RX give way judge,
RYT () is the rate estimates recording power receiving transmission request based on corresponding gap t such as indicated by frame 724, RA(Y t) may be used
Corresponding to historical link quality information 726, and β (Y) may correspond to QoSCD722 or from QoSCD722 derive.At some
In embodiment, β (Y) be the locally known QoS information of receiver device judged for making concessions such as do not use and/or
Use the function of the amount of receiver buffer capacity.
In certain embodiments, β (Y) and RRTThe link that both belonging to just gives way for its execution receiver judges
QoS information such as QoSCDThe function of information.
In certain embodiments, concession parameter and the concession limit are the form of SNR and non-usage rate information.
Fig. 8 is operation includes from the second wireless terminal to the system of the first wireless communication link of the 3rd wireless terminal
The flow chart 800 of the illustrative methods of the first wireless terminal, described first communication link has than from the first wireless terminal to
The second higher priority of communication link of four wireless terminals.First, second, third and fourth wireless terminal be such as support right
Mobile communication equipment Deng communication.The operation of this illustrative methods starts from step 802, be powered at this first wireless terminal,
Initialize and set up the second communication link with the 4th wireless terminal.Operation advances to step 804 from step 802.
In step 804, the first wireless terminal such as be associated with traffic transmission section transmission request block in second
The transmission request resource that communication link is associated transmits transmission request to the 4th wireless terminal.Operation advances to from step 804
Step 806.
In step 806, the first wireless terminal reception from the 3rd wireless terminal in response to from the second wireless terminal
Transmission request and the first transmission request response of transmitting, and in step 808, the first wireless terminal reception is from the 4th nothing
The second transmission request transmitted in response to the transmission request transmitted in step 804 by the first wireless terminal of line terminal rings
Should.In certain embodiments, first transmission request response and second transmission request response both be with identical traffic transmission section
The identical traffic request response block being associated receives.Thus, the 3rd wireless terminal has signaled the viewpoint from it
For the second wireless terminal can proceed its expection traffic transmission being directed to the 3rd wireless terminal in this traffic transmission section,
And the 4th wireless terminal has signaled the first wireless terminal for its viewpoint can be in this identical traffic transmission
Duan Shangxiang the 4th wireless terminal proceeds its expection traffic transmission.Operation advances to step 810 from step 808.
In step 810, the first wireless terminal according at least one from the 3rd wireless terminal reception to signal determine
The historical link quality information corresponding with the first communication link.In certain embodiments, this at least one signal is from
The broadcast singal of the reception and registration historical speed information of three wireless terminals.In certain embodiments, wireless from the 3rd according at least one
The signal that terminal receives is determined including that the multiple signals according to being sent to the second wireless terminal from the 3rd wireless terminal tire out
Long-pending link quality information, each in the plurality of signal passes on the link quality information corresponding with different periods.One
In a little embodiments, link quality information includes one below: link signal to noise ratio (SNR) information and rate information.
Operation advances to step 812 from step 810.In step 812, the first wireless terminal is according to the first biography received
Defeated request response signal estimates the quality of the first communication link.In certain embodiments, estimating the quality of the first communication link
Meter is also the function of the expection through-put power of the expection telephone traffic signal from the first wireless terminal to the 4th wireless terminal.In various realities
Executing in example, the first wireless terminal is based on determining from the first wireless terminal wireless to the 4th to the estimation of the second link communications channel
The expection through-put power of the expection telephone traffic signal of terminal.In certain embodiments, the estimation to the quality of the first communication link is
The function of the second transmission request response signal received.Estimation to the quality of the first communication link is such as to estimate SNR
Meter or the estimation to data transfer rate.Operation advances to step 814 from step 812.
In step 814, the first wireless terminal based on: i) corresponding with the first link historical link quality information or
Ii) at least one in the quality of service information corresponding with the second communication link is dynamically generated concession threshold value, such as, launch
Machine concession threshold value.In certain embodiments, quality of service information is to wait for being sent to the data volume of fourth node by primary nodal point
Function.In certain embodiments, wait, at quality of service information instruction and primary nodal point, the traffic being transmitted to fourth node
The service quality rating that type is corresponding.Some of the different types of traffic can being associated from different service quality ratings are shown
Example includes voice telephone traffic, other waiting time dependent data traffic and best effort data traffic.In various embodiments, have
Time be dynamically generated threshold value and include when quality of service information instruction increases the service quality rating corresponding with the second communication link
Shi Shengcheng is less than the threshold value of previous threshold.Thus, by reducing concession threshold value, the first wireless terminal is less likely to perform transmitter
Give way but more likely can transmit traffic data in this gap and meet the higher quality of service grade of the second communication link
Need.In various embodiments, sometimes it is dynamically generated threshold value to include when quality of service information instruction reduces and the second communication chain
The threshold value higher than previous threshold is generated during the corresponding service quality rating in road.
In certain embodiments, historical link quality information is included in the first communication link support of previous time interval period
Average data rate.Average data rate is one of such as based on index average data rate and Moving Window average data rate.One
In a little embodiments, average data rate is to correspond only to wherein not occur the transmitter of third communication equipment to give way and in the first communication
Conveyed the time interval of traffic data on link and determine.In certain embodiments, average data rate corresponds to wherein
Data have been reached and the first wireless terminal has been made transmitter and given way the time interval judged and determine at the first communication links
's.In some these type of embodiments, depend on when calculating average data rate whether the first wireless terminal determines wherein the
One communication links has reached and has carried out transmitter concession in the specific previous interval of traffic data and use different weighter factors.
Operation advances to step 816 from step 814.
In step 816, the first wireless terminal estimation based on the first communication link quality and the threshold that is dynamically generated
Value be made whether to transmit the judgement of traffic data in the span line corresponding with the second transmission request response received.Step
816 include sub-step 818,820,822 and 824.In sub-step 818, the first wireless terminal is by the estimation of the first communication link
Quality compares with the threshold value being dynamically generated.Subsequently in sub-step 820, if the estimation quality of the first communication link surpasses
Cross the threshold value being dynamically generated, then operate and advance to sub-step 822 from sub-step 820;Otherwise, operation is advanced from sub-step 820
To sub-step 822.Returning sub-step 822, in sub-step 822, the first wireless terminal determines to transmit traffic data.Operation is from son
Step 822 advances to step 826.Returning sub-step 824, in sub-step 824, the first wireless terminal determines not transmit traffic number
According to.Operate and advance to connect node A 830 from sub-step 824.
Returning in step 826, in step 826, the first wireless terminal generates telephone traffic signal, and in step 828, the
One wireless terminal transmits the traffic data letter of generation in the traffic span line corresponding with the second transmission request response received
Number.Operate and advance to connect node A 830 from step 828.Operate the input advancing to step 804 from connection node A 830, example
As transmitted another traffic transmission request corresponding with another traffic gap at this first wireless terminal to the 4th wireless terminal
Response.
Fig. 9 is exemplary first wireless terminals such as the mobile node such as supporting peer-to-peer communications according to exemplary embodiment
The diagram of 900.First wireless terminal 900 is such as to include from the second wireless terminal to the first radio communication of the 3rd wireless terminal
Wireless terminal in the system of link, described first communication link have than from the first wireless terminal 900 to the 4th wireless terminal
The second higher priority of communication link.Exemplary first wireless terminal 900 includes the nothing being coupled via bus 912
Line receiver module 902, wireless transmitter module 904, processor 906, user's I/O equipment 908 and memorizer 910, each unit
Can in bus 912 interchange of data and information.In certain embodiments, the first wireless terminal 900 also includes being also coupled to bus
The network interface 907 of 912.Network interface 907 makes the first wireless terminal 900 can coupled to via backhaul network when being implemented
Network node and/or the Internet.
Memorizer 910 includes routine 918 and data/information 920.The processors 906 such as such as CPU perform in memorizer 910
Routine 918 and use the data/information 920 in memorizer 910 to control operation the side of realization of the first wireless terminal 900
The method of the flow chart 800 of method, such as Fig. 8.
User's I/O equipment 908 includes such as microphone, keyboard, keypad, mouse, switch, camera, speaker, display
Deng.User's I/O equipment 908 makes the operator of the first wireless terminal 900 can input data/information, access output data/information
And control at least some function of the first wireless terminal 900.
The such as wireless receiver module such as OFDM and/or cdma receiver 902 is coupled to reception antenna 914, the first nothing
Line terminal 900 receives the signal from other communication equipments via this antenna.The signal received includes connection establishment signal, connection
Maintenance signal and transmission request response signal.Wireless receiver module 902 receives (i) sometimes from the 3rd wireless terminal
The the first transmission request response transmitted in response to the transmission request from the second wireless terminal, and (ii) is wireless from the 4th
The second transmission request response transmitted in response to the transmission request from the first wireless terminal 900 of terminal.
The wireless transmitter module 904 such as such as OFDM and/or CDMA transmitter are coupled to launch antenna 916, the first nothing
Line terminal 900 launches signal via this day other communication equipment of alignment.The signal launched includes connection establishment signal, connects and safeguard
Signal and traffic transmission request signal and telephone traffic signal.Such as, after setting up peer to peer connection with the 4th wireless terminal, right
Should in time base/frequency structure in traffic transmission gap, the wireless transmitter module 904 of the first wireless terminal is to the 4th wireless terminal
Transmit transmission request.Subsequently, if the first wireless terminal 900 receive from the 4th wireless terminal in response to transmitted please
The request asked responds and decides not to perform transmitter and gives way, then the transmitter module 904 of the first wireless terminal is to the 4th wireless end
End transmits telephone traffic signal.In certain embodiments, Receiver And Transmitter uses the same antenna.
Routine 918 includes Communications routines 922 and control routine 924.Communications routines 922 realizes by the first wireless terminal 900
The various agreements used.Control routine 924 includes transmission request generation module 926, transmission request control module 928, transmission please
Ask response detection module 930, communication link quality estimation module 932, historical link quality determination module 940, concession threshold value raw
Become module 946, transmitter concession module 948, traffic signaling generation module 947 and traffic signaling control module 949.Communication chain
Road quality estimation module 932 includes that transmission request response measurement module 934 and telephone traffic signal transmitted power level determine module
935.In certain embodiments, during communication link quality estimation module 932 includes SNR submodule 936 and speed submodule 938
One or more.Historical link quality determination module 940 includes link-quality accumulation submodule 942.
The transmission request of base/frequency structure information 950, current connection information 956, generation when data/information 920 includes
958, detection transmission request response 960, other connection detection transmission request response 962, request responding power measurements are currently connected
Information 964, expection telephone traffic signal transmitted power level 965, the quality of service information 972 corresponding to current connection, historical link
Quality information 974, the transmitter concession threshold value 976 being dynamically generated, transmitter concession judgement 978 and the traffic letter generated
Numbers 980.In certain embodiments, data/information 920 include SNR estimate 968 and rate estimates 970 in one or more.
Shi Ji/frequency structure information 950 includes the information (traffic corresponding with the multiple traffic transmission gaps in based structures during reproduction equity
Transmission gap 1 information 952 ..., traffic transmission gap n information 954).Traffic transmission gap 1 information 952 includes that mark is for transmitting transmission
The air link resources of request signal, use for transmitting air link resources and the such as traffic segment of request response signal etc.
Information in the air link resources of transmission telephone traffic signal.It is current that current connection information 956 includes identifying the first wireless terminal 900
The information of the connection kept, the connection mark being such as associated with the connection between the first wireless terminal 900 and the 4th wireless terminal
Know symbol.In certain embodiments, the particular airlink resource in transmission request block and the specific sky in transmission request response block
Link resource such as according to time base/frequency structure information be associated with connection identifier (CID.Be associated with connection identifier (CID is excellent
First level grade can and the most such as be sent out between a traffic transmission gap and another according to the jump sequence realized
Raw change.
Transmission request generation module 926 generates traffic transmission request signal, this traffic transmission request request signal first nothing
Line terminal 900 has the wireless terminal of current connection therewith with being intended in the traffic segment corresponding with this request to this wireless terminal
Transmit telephone traffic signal.Such as, transmission request generation module generates request the 4th wireless terminal with purpose the 4th wireless terminal biography
Send the transmission request 958 that the traffic transfer request signal of traffic such as generates, wherein this request and being associated with this request
Traffic segment both corresponding in traffic transmission gap by time identified one of base/frequency structure information 950.Implement at some
In example, the request of this generation is also generated for transmitting service quality information or can be used for the information of derivation quality of service information.
Transmission request control module 928 control wireless transmitter module 904 according to time base/frequency structure information 950 transmit generation
Transmission request.In certain embodiments, corresponding to specific connection identifier (CID, the spy in request block corresponding with traffic transmission gap
Determine air link resources such as one or more OFDM tone-symbols and be exclusively used in specific connection identifier (CID.
Transmission request response detection module 930 detects the transmission request response signal received, and the transmission request that this receives rings
Induction signal and can the most really include currently connecting detection transmission request response 960 and other connect detection transmission request and ring
Answer 962.It is such as to ask 958 corresponding requests with the transmission that generated of transmission that request response 960 is transmitted in current connection detection
Response.Current connection detection transmission request response is the request being such as directed to the first wireless terminal 900 from the 4th wireless terminal
Response.Other connect detection transmission request response 962 is the request being such as directed to the second wireless terminal from the 3rd wireless terminal
Response.
Communication link quality estimation module 932 estimates the communication link having higher priority than the communication link of their own
Quality.Such as, communication link estimation module 932 is supposing that traffic communication is to use identical traffic segment on two communication links
The quality having the communication link of higher priority than the communication link of their own is estimated in the case of occurring concomitantly.Communication link
Quality estimation module 932 is estimated than it according to the transmission request response signal received corresponding to higher priority communication link
The link of oneself has the quality of the communication link of higher priority.Such as, communication link quality estimation module 932 is according to from the 3rd
Such as, signal 962 estimates second and the 3rd wireless terminal to the first request response signal that wireless terminal reception arrives
Between the quality of the first communication link.
In certain embodiments, communication link quality estimation module 932 uses and the second communication link expection telephone traffic signal
Such as, information 965 determines the first link matter to expection telephone traffic signal transmission power level determined by corresponding
Amount is estimated.Telephone traffic signal transmitted power level determines that module 935 is based between the first wireless terminal 900 and the 4th wireless terminal
Channel is estimated to determine expection telephone traffic signal transmitted power level 965.In certain embodiments, communication link quality estimation module
932 according to 1/ ((P1)(P2) estimate the quality of the first communication link, wherein P1It is the request sound from higher priority link
Induction signal record received power level and P2It is that merit is launched in the expection of telephone traffic signal on the lower priority link of their own
Rate.
What transmission request response measurement module 934 measured detection transmission request response signal interested receives power electricity
Flat.Detection request response signal (960,962) is the input of measurement module 934, and asking responding power metrical information 964 is to survey
The output of amount module 934.
SNR submodule 936 uses request responding power metrical information 962 to determine right with transmitter concession module 948
It performs transmitter and gives way the corresponding SNR information of the higher priority link interested judged, such as SNR estimates 968.Speed
Rate submodule 938 uses request responding power metrical information 962 to determine will perform transmitting to it with transmitter concession module 948
Machine is given way the corresponding data rate information of the higher priority link interested judged, such as rate estimates 970.
Historical link quality determination module 940 determines according at least one signal received from higher priority link
The historical link quality information corresponding with higher priority communication link.Such as, historical link quality determination module 940 basis
At least one from the 3rd wireless terminal reception to signal determine and second and the 3rd the first communication chain wireless terminal
The historical link quality information that road is corresponding.In certain embodiments, this at least one signal is broadcast singal, such as from
The broadcast singal of the reception and registration historical speed information of three wireless terminals or the reception and registration history SNR information from the 3rd wireless terminal
Broadcast singal.Historical link quality information 974 is the output of module 940 and is used as the defeated of concession threshold generation module 946
Enter.
In certain embodiments, historical link quality determination module 940 determine previously during time interval by interested
Higher priority communication link the such as first communication link support average link quality, such as average data
Rate.This be averagely such as based on index average and Moving Window one of averagely.In certain embodiments, determining that mean time considers
Wherein give way and such as transmit concomitantly with the data on the communication link (the such as second communication link) of WT 900
Higher priority the such as first communication link there occurs the information during the time interval that data are transmitted.Other one
In a little embodiments, determining that mean time considers wherein to there occurs what data were transmitted on higher priority the such as first communication link
Information during time interval judges regardless of the transmitter concession of WT 900.In some these type of embodiments, determine average bag
Include and use different weighted values, and whether the weighted value being used for specific previous traffic gap is depending in this previous traffic gap sending out
Give birth to what transmitter concession selected.
Link-quality accumulation submodule 942 from corresponding to link interested such as second and the 3rd wireless terminal it
Between higher priority link send multiple signal accumulation link quality information.Such as, link-quality accumulation submodule
942 from the multiple signal accumulation link quality information sent to the second wireless terminal from the 3rd wireless terminal, the plurality of signal
In each pass on from the different periods such as, the link quality information that different traffic transmission gaps is corresponding.
In certain embodiments, link quality information is one of link SNR information and link rate information.
In some embodiments such as, wherein the expection receiver of telephone traffic signal transmit such as with the communication chain of their own
In the embodiment of the quality of service information such as the service quality rating that road is corresponding, recover 944 as words including quality of service information
A part or therewith for business transmission request response signal.In certain embodiments, the communication link of the 3rd wireless terminal with
Such as, service quality rating is determined the corresponding quality of service information of traffic transmission gap by the first wireless terminal 900
And thus known by the first wireless terminal 900.Use in the embodiment recovering module 944 wherein, the first wireless terminal 900
The current quality of service information 972 connected is the output that quality of service information recovers module 944.In other embodiments, currently
Connection Service quality information 972 is determined by the first wireless terminal 900 and is stored.In certain embodiments, quality of service information 972
It is to wait for being sent to its equipment therewith with connection by the first wireless terminal 900 such as to be passed by the first wireless terminal 900
Give the function of the data volume of the 4th wireless terminal.In certain embodiments, quality of service information instruction and the 3rd node
Locate the service quality rating that the Traffic type of wait is corresponding.Can be associated from different service quality ratings is exemplary different
The traffic of type includes such as voice telephone traffic, other waiting time interdependent traffic and best effort traffic.
Concession threshold generation module 946 based on: i) with higher priority link such as, the first communication link phase
Corresponding historical link quality information and ii) corresponding with current connection communication link the such as second communication link
At least one in quality of service information is dynamically generated concession threshold value, such as transmitter (TX) concession threshold value.Thus, Service Quality
Amount information 972 and/or historical link quality information 974 are the inputs of concession threshold generation module 946.The TX being dynamically generated allows
Step threshold value is the input exporting and be transmitter concession module 948 of concession threshold generation module 946.
In certain embodiments, concession threshold generation module 946 is configured to increase and the in quality of service information instruction
One wireless terminal 900 currently connects during the corresponding service quality rating of communication link the such as second communication link dynamic
State ground generates the threshold value less than previous threshold.For example it is assumed that the service quality rating of the link of WT 900 is because WT's 900 sends out
Penetrating the reason having higher priority traffic just waiting in queue increase from previous traffic gap, other conditions given keep not
Becoming, the transmitter concession threshold value being dynamically generated by reduction, WT900 increases its probability that will not give way and increases it
To be allowed to transmit the probability of traffic in this gap.In certain embodiments, concession threshold generation module 946 is configured to
Quality of service information instruction reduction is currently connected communication link the such as second communication link with the first wireless terminal 900
It is dynamically generated the threshold value higher than previous threshold during corresponding service quality rating.
Transmitter concession module 948 be made whether ringing with the traffic transmission request that receives being directed to wireless terminal 900
The the second transmission request response that should such as receive from the 4th wireless terminal, such as detection request response 960 is corresponding
Traffic span line in transmit the judgement of traffic data.Transmitter concession module 948 is based on the higher priority communication considered
Such as, the estimation quality of the first communication link and the threshold value being dynamically generated judge link to make it.
In certain embodiments, transmitter concession module 948 is configured to by higher priority communication link such as
The estimation quality of the first communication link compares with the threshold value being dynamically generated, and compares instruction higher prior described
Level link such as, when the estimations quality of the first communication link exceedes this threshold value being dynamically generated decision such as with
The request received from the 4th wireless terminal responds corresponding traffic segment to fourth communication equipment transmission traffic data.At some
In embodiment, transmitter concession module 948 is configured to if such a comparison indicate that higher priorities such as the such as first communication links
Link also then determines not less than this threshold value being dynamically generated give way and prevent transmission.The TX concession threshold value 976 that is dynamically generated,
And SNR estimate 968 and/or rate estimates 970 in one or more be the input of transmitter concession module 948, and send out
Machine of penetrating is given way and is judged 978 outputs being transmitter concession module 948.Transmitter is given way and is judged that 978 is telephone traffic signal generation module
947 and traffic signaling control module 949 in one or more input.
The telephone traffic signal 980 that telephone traffic signal generation module 947 is generated, such as it is contemplated that from the first nothing in traffic segment
Line terminal 900 sends the reciprocity telephone traffic signal of the 4th wireless terminal to.When transmitter concession module 948 determines to stand fast, words
It is relevant to the request previously transmitted such as indicated by information 950 that business signaling control module 949 controls wireless transmitter module 904
Transmit, in the suitableeest air link resources of the traffic segment of connection, the telephone traffic signal 980 generated.When transmitter concession module 948 determines
During concession, traffic signaling control module 949 control wireless transmitter module 904 such as indicated by information 950 interested if
Prevent in the suitableeest air link resources of business section and transmit signal.
Figure 10 be illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling in order to explain orally root
Diagram 1000 according to each side that the transmitter of some embodiments is given way.Diagram 1000 illustrates 4 exemplary equity wireless ends
End (WT A 1002, WT B 1004, WT C 1006 and WT D 1008).These WT (1002,1004,1006,1008) are examples
Arbitrary as in the reciprocity WT of Fig. 1.WT C 1006 is the WT 900 of such as Fig. 9 and/or realizes the flow chart 800 according to Fig. 8
The wireless terminal of method.There is the first peer-to-peer communication link 1010 between WT A 1002 and WT B 1004;And exist
The second peer-to-peer communication link 1012 between WT C 1006 and WT D 1008.For exemplary purposes, it is assumed that the first communication chain
The priority on road 1010 is higher than the priority of the second communication link 1012.
For purposes of this example, it is assumed that WT A 1002 wants and the WT C wishing to transmit traffic to WT D 1008
1006 use identical air link resources such as, and traffic segment transmits to WT B 1004 in identical traffic gap
Traffic.Judging it is also assumed that perform scheduling in a decentralized manner, such as receiver concession judges and transmitter is given way judges.
WT A 1002 transmits transmission request 1014 to WT B 1004.WT C 1006 transmits transmission request to WT D 1018
1016.Give way assuming that WT B 704 and WT D 1008 decides not to perform receiver.Thus, WT B 1004 generates and transmits and determines
To the transmission request response signal 1018 to WT A 1002, and WT D 1008 generates and transmits the biography being directed to WT C 1006
Defeated request response signal 1020.Request response signal 1018 notifies WT A 1002, and for the viewpoint of WT B 1004, it can be to
WT B 1004 proceeds intended asked traffic transmission.Request response signal 1020 notifies that WT C 1006 is from WT D
For the viewpoint of 1008, it can proceed intended asked traffic transmission to WT D 1008.
WT C 1006 receives and detects (i) request response signal 1020 corresponding with the connection of their own and (ii)
The request response signal 1014 corresponding with higher priority link.WT C 1006 receives as measured with indicating by frame 1028
Transmit the power that receives of request response signal, and as indicated by frame 1030 based on the traffic transmission request response signal received
The power that records of 1014 determines the first link quality estimation, such as, estimate SNR value or estimate data transfer rate.In some embodiments
In, determine that the first link quality estimation also includes using intended second traffic transmission power level value true to perform this
Fixed.WT C 1006 such as receives signal based on one or more corresponding with the first link and determines history the first link
Quality information 1022.In certain embodiments, history the first link quality information determined by is and previous traffic transmission gap phase
Corresponding meansigma methods, such as SNR meansigma methods or data transfer rate meansigma methods.This meansigma methods is such as based on index average and based on cunning
Dynamic window one of average.In certain embodiments, history the first link quality information is according to the letter received from WT B 1004
Number such as transmit the speed in the previous traffic transmission gap of traffic data wherein to WT B 1004 as WT A 1002
The Data Rate Indicator signal that a part for scheduling operation is broadcasted by WT B 1004 is derived.In some embodiments
In, determine mean time consider wherein give way such as with the data on lower priority the second communication link 1012
Transmission there occurs the letter during the time interval that data are transmitted concomitantly on higher priority the first communication link 1010
Breath.In some other embodiment, occur on higher priority the first communication link 1012 determining mean time to consider wherein
Information during the time interval of data transmission, gives way regardless of the transmitter of WT C 1006 and judges.At some, this type of is implemented
In example, determine and averagely include using different weighted values, and the weighted value of specific previous traffic gap is depending at this previous
In traffic gap, whether WT C 1006 has carried out what transmitter concession selected.
WT C 1006 also has QoS that is corresponding with the second link and that be currently associated with this second linkCDInformation
1024, such as QoS grade.In certain embodiments, WT C 1006 is such as based on waiting the Traffic type sending WT D1008 to
And/or wait sends the telephone traffic of WT D 1008 to determine QoSCD.In certain embodiments, WT D 1008 determines QoSCD
1024 and this information is conveyed to WT C 1006.In some these type of embodiments, QoSCD1024 as transmission request response
The part of 1020 or be communicated to WT C1006 therewith.WT C 1006 is as indicated by frame 1026 based on history first
Link quality information 1022 and the quality of service information QoS corresponding with the second linkCD1026 are dynamically generated transmitter gives way
Threshold value.
In certain embodiments, it is dynamically generated threshold value to include as quality of service information QoSCD1024 instructions reduce and the
Generate during the corresponding service quality of two communication links 1012 higher than such as corresponding to the threshold value of previous threshold of previous traffic gap.
Thus, other conditions given keep constant, and the relatively low QoS in response to the second link 1012 needs, and this type of higher thresholds makes WT
C 1008 will be more likely to carry out TX concession in this gap, and will relatively from the expection traffic transmission of WT C1006 to WT D 1008
Can not occur in this traffic transmission gap.In certain embodiments, it is dynamically generated threshold value to include working as quality of service information
QoSCD1024 instructions generate when increasing the service quality corresponding with the second communication link 1012 less than such as corresponding to previous words
The threshold value of the previous threshold of business gap.Thus, other conditions given keep constant, and the higher QoS in response to the second link 1012 needs
, this type of lower threshold makes WT C 1008 will be less likely in this gap to carry out TX concession, and from WT C 1006 to WT
The expection traffic transmission of D1008 will be more likely to occur in this traffic transmission gap.
WT C 1006 is as indicated by frame 1032 based on the first link quality estimation 1030 and the transmitting that is dynamically generated
Machine concession threshold value 1026 is made transmitter concession and is judged.Such as, it is dynamically generated if the first link quality estimation exceedes this
Threshold value, then WT C 1006 determine stand fast and determine to transmit the second link traffic signal 1036 to WT D 1008.But, as
Really the first link quality estimation the threshold value that is dynamically generated not less than this, then WT C 1006 determines that performing transmitter gives way also
Prevent and transmit its expection telephone traffic signal 1036.
Corresponding with the limit priority link in some areas and have been received by response to its transmission request 1014 biography
The WT A 1002 of defeated request response 1018 uses the traffic segment being associated with request 1014 and 1016 to transmit equity to WTB 1004
Telephone traffic signal 1034.The WT C 1006 corresponding with lower priority link depends on its transmitter concession decision condition ground
Transmit equity telephone traffic signal 1036.If WT C 1006 determines to transmit traffic really, then its use just uses with WT A 1002
Identical traffic segment.
The prediction of various TX concession ways is allowed to communicate concurrently with higher priority traffic at lower priority link
Ground in identical air link resources such as, traffic segment transmits in the case of traffic higher priority link
Interference cost.A kind of exemplary (TX) transmitter concession way be will now be described.In this way, use in concession determines
The concession limit is dynamic, and can and the most really from a traffic transmission gap to another time according to historical information and
The present situation and change.If considering RY (Z, Y)(t) < max (α (Y) RA(Y, t), RTT) then link Y will carry out TX concession, its
Middle RY (Z, Y)T () is that the rate estimates of gap t link Z supposes that link Y also uses identical air link resources to lead to concomitantly
Letter, its link Z is the link having higher priority than link Y, α (Y) be scaled values its be the information about link Y
The function of the function such as QoS information of link Y, RA(Z, t) be Mean Speed such as based on previous gap be gap t calculate
The exponential average of link Z or sliding window average, and RTTBe TX concession rate-valve value such as, fixing TX concession speed threshold
Value.α (Y) is the scaling factor that higher priority link rate is average, and wherein higher priority link rate is flat was all based on
Toward information.In certain embodiments, RTTIt it is the fixing minimum acceptable rate judged of giving way for TX.Context at Figure 10
In, it is considered to the second link 1012 is link Y, formula RY (Z, Y)(t) < max (α (Y) RA(Z, t), RTT) can be used for the TX of frame 1032
Give way and judge, RY (Z, Y)T () is the speed recording power receiving transmission request based on corresponding gap t such as indicated by frame 1030
Estimate, RA(Z t) may correspond to historical link quality information 1022, and α (Y) can be from QoSCD1024 derive.
In certain embodiments, RA(Z is t) to upload at link Z from a such as part as traffic rate scheduling operation
The rate feedback information that send or according to time based structures dispatch often from the rate information of the sign link Z of link Z device broadcasts
Derive.Thus so that lower priority link i.e. link Y knows higher priority traffic speed.
In certain embodiments, α (Y) and RTTThe link both judged about just giving way for its execution transmitter
QoS information such as QoSCDThe function of information 1022.
Although being to be described with the form of speed in the above examples, but in certain embodiments, concession parameter and
The concession limit is the form of SNR information and non-usage rate information.
Figure 11 be illustrated example wireless terminal, exemplary peer-to-peer communication link and exemplary signaling in order to explain orally root
Diagram 1100 according to each side that the transmitter of some embodiments is given way.Diagram 1100 illustrates 4 exemplary equity wireless ends
End (WT A 1102, WT B 1104, WT C 1106 and WT D 1108).These WT (1102,1104,1106,1108) are examples
Arbitrary as in the reciprocity WT of Fig. 1.WT C 1106 is the WT 900 of such as Fig. 9 and/or realizes the flow chart 800 according to Fig. 8
The wireless terminal of method.There is the first peer-to-peer communication link 1110 between WT A 1102 and WT B 1104;And exist
The second peer-to-peer communication link 1112 between WT C 1106 and WT D 1108.For exemplary purposes, it is assumed that the first communication chain
The priority on road 1110 is higher than the priority of the second communication link 1112.
For purposes of this example, it is assumed that WT A 1102 wants and the WT C wishing to transmit traffic to WT D 1108
1106 use identical air link resources such as, and traffic segment transmits to WT B 1104 in identical traffic gap
Traffic.Judging it is also assumed that perform scheduling in a decentralized manner, such as receiver concession judges and transmitter is given way judges.
WT A 1102 transmits transmission request 1114 to WT B 1104.WT C 1106 transmits transmission request to WT D 1108
1116.Give way assuming that WT B 1104 and WT D 1108 decides not to perform receiver.Thus, WT B 1104 generates and transmits
It is directed to the transmission request response signal 1118 of WT A 1102, and WT D 1108 generates and transmits and is directed to WT C's 1006
Transmission request response signal 1120.Request response signal 1118 notifies WT A 1102, and for the viewpoint of WT B 1104, it is permissible
Intended asked traffic transmission is proceeded to WT B 1104.Request response signal 1120 notifies that WT C 1106 is from WT D
For the viewpoint of 1108, it can proceed intended asked traffic transmission to WT D 1108.Transmission request response signal
1114 is with transmitted power level P by WT B11040BT1122 transmission.Transmission request response signal 1120 is by WT D
1108 with transmitted power level P0DT1126 transmission.
WT C 1106 receives and detects the transmission request response signal 1120 corresponding with the connection of their own and measurement should
The power level that receives of signal is PODR1128.WT C 1106 also receives and detects ask corresponding with higher priority link
Seek response signal 1114 and to measure the power level that receives of this signal be P11124.If WT C1006 determines traffic to be transmitted
Then estimate h based on the channel between WT C 1106 and WT D 1108CDDetermine that the expection of its expection telephone traffic signal 1134 is launched
Power P21130.WT C 1106 is as indicated by frame 1132 based on the traffic transmission request response signal 1114 received to be recorded
Power P11124 and the expection transmitted power level P of intended second link traffic signal 113421130 determine the first chain
Road quality is estimated, such as, estimate SNR value or estimate data transfer rate.In certain embodiments, the first link quality estimation is (1/
((P1)(P2))) function.First link quality estimation is such as allowed to use phase at the second link traffic signal 1134
With air link resources (the most identical traffic segment) and the first link traffic signal 1133 occur concomitantly in the case of
The transmitter concession threshold value at WT B 1104 estimated the desired quality of reception and be dynamically generated compares with really
Determine whether WT C 1106 should perform transmitter concession.In certain embodiments, the transmitter concession threshold value being dynamically generated be with
Historical link quality information that first link 1110 is corresponding and the quality of service information corresponding with the second link 1112
And/or the function of the change of the quality of service information corresponding with the second link 1112.
Figure 12 be illustrate use in certain embodiments exemplary time base and the diagram 1200 of frequency structure.This is exemplary
Shi Ji/frequency structure can be used on one or more in the Fig. 1-11 wireless terminal described in any one in the middle of.Diagram 1200
Including representing the longitudinal axis 1202 of frequency such as OFDM frequency modulation, and represent in time such as recurring timing structure
The transverse axis 1204 of indexed OFDM symbol transmission time interval.This recurring timing structure includes multiple traffic transmission gap
(traffic transmission gap 1 1206 ..., traffic transmission gap N 1208).Each traffic transmission gap includes wherein passing on transmission request, holding
The concession of row receiver judges, reception and registration transmission request responds and perform the user scheduling part that transmitter concession judges.At some
In embodiment, receiver is given way and/or transmitter is given way includes dynamically giving way the generation of threshold value and use.Such as, corresponding to spy
Fixed connect, receiver concession threshold value and/or transmitter concession threshold value can from a gap to time another such as based on historical link
Quality information and/or quality of service information and change.Traffic transmission gap 1 1206 includes user scheduling part 1210, and talks about
Business transmission gap N 1208 includes user scheduling part 1212.
Transmission request block 1214, transmission request response block 1216, pilot tone signaling block 1218, data transfer rate signaling block 1220, words
Business section 1222 and traffic confirm that resource 1224 is corresponding to traffic transmission gap 11206.To the traffic transmission using traffic segment 1222
Request is to use the air link resources asking the connection identifier (CID in block 1214 to be associated with transmission such as, one or more
Multiple OFDM tone-symbols transmit.Respective request is agree by the expression in response to the request to use traffic segment 1222
The traffic transmission request response of provisioning response is that use is aerial with what the connection identifier (CID in transmission request response block 1216 was associated
Such as, one or more OFDM tone-symbols transmits link circuit resource.Pilot tone signaling block 1218 and data transfer rate
Signaling block 1220 is included in certain embodiments, but is not included in other embodiments.After user scheduling 1210,
Determine which wireless terminal and will transmit traffic data in traffic segment 1222.It is scheduled in traffic segment 1222 transmission traffic number
According to those terminals pilot signal transmitteds in pilot tone signaling block 1218, and it is contemplated that traffic segment 1222 receives telephone traffic signal
Those terminals are measured these pilot tones and use data transfer rate signaling block 1220 to send data transfer rate feedback signal.In certain embodiments,
The dynamic transmitter concession threshold value that the data transfer rate feedback signal corresponding with previous transmission gap is used for determining in current transmission gap.
The transmitter being scheduled determined during user scheduling 1210 transmits traffic data in traffic segment 1222.Adjusted
Degree traffic data receiver the most such as once successfully recover be communicated receive traffic data just talking about
Business confirms to respond with traffic confirmation signal in resource 1224.
Transmission request block 1226, transmission request response block 1228, pilot tone signaling block 1230, data transfer rate signaling block 1232, words
Business section 1234 and traffic confirm that resource 1236 is corresponding to traffic transmission gap N 1208.To the traffic transmission using traffic segment 1234
Request use be and the air link resources that is associated of connection identifier (CID in transmission request block 1226 such as, one or more
Multiple OFDM tone-symbols transmit.Respective request is agree by the expression in response to the request to use traffic segment 1234
The traffic transmission request response of provisioning response is that use is aerial with what the connection identifier (CID in transmission request response block 1228 was associated
Such as, one or more OFDM tone-symbols transmits link circuit resource.In certain embodiments, transmission request
The transmission power level of response signal is the function of quality of service information.Pilot tone signaling block 1230 and data transfer rate signaling block 1232 exist
Some embodiments are included, but are not included in other embodiments.After user scheduling 1212, it has been decided to which nothing
Line terminal will transmit traffic data in traffic segment 1234.It is scheduled in traffic segment 1234 those terminals transmitting traffic data
Pilot signal transmitted in pilot tone signaling block 1230, and the receiver being scheduled for traffic segment 1234 is measured these pilot tones and makes
Data transfer rate feedback signal is sent with data transfer rate signaling block 1232.In certain embodiments, corresponding with previous transmission gap data
The dynamic transmitter concession threshold value that rate feedback signal is used for determining in current transmission gap.
The transmitter being scheduled determined during user scheduling 1212 transmits traffic data in traffic segment 1234.Adjusted
Degree traffic data receiver the most such as once successfully recover be communicated receive traffic data just talking about
Business confirms to respond with traffic confirmation signal in resource 1236.
Figure 13 is the flow chart 1300 of the illustrative methods of the first wireless terminal in operation peer communication system.This example
The operation of property method starts from step 1302, is powered at this first wireless terminal and initializes.Operate from starting step 1302
Advance to step 1304.
In step 1304, the first wireless terminal reception with from the second wireless terminal to the communication link of the first wireless terminal
Corresponding quality of service information.In certain embodiments, the first and second wireless terminals are mobile devices.Operation is from step
1304 advance to step 1306.
In step 1306, the first wireless terminal reception is asked from the transmission of the second wireless terminal.In some embodiments
In, quality of service information and transmission request receive in separate signal.In some other embodiment, service quality is believed
Breath and transmission request receive in individual signals.In certain embodiments, quality of service information is based on will be with described
The traffic gap that transmission request is corresponding is sent to the data type of the first wireless terminal by the second wireless terminal.Real at some
Executing in example, quality of service information is based on waiting the data volume being sent to the first wireless terminal by the second wireless terminal.Operation
Step 1308 is advanced to from step 1306.
In step 1308, the first wireless terminal determines request response transmission power level based on quality of service information.
In certain embodiments, determine that request response through-put power includes when the instruction of described quality of service information increases wireless with from second
Terminal to during the service quality that the communication link of the first wireless terminal is corresponding from previously determined request response through-put power electricity
Equal increase request response through-put power.In certain embodiments, determine that request response through-put power includes when described Service Quality
Amount information instruction reduce with from the second wireless terminal to during the service quality that the communication link of the first wireless terminal is corresponding from elder generation
The front request response transmission power level determined plays reduction request response through-put power.Determine that request response transmission power level exists
Some embodiments include: the power that receives based on transmission request determines minimum request response transmission power level;And in the ban
The front request response transmission power level determined and the instruction of described service quality reduce wireless to first with from the second wireless terminal
During the corresponding service quality of the communication link of terminal, from previously determined request response transmission power level, reduce request ring
Answer transmission power level.
Operation advances to step 1310 from step 1308.In step 1310, the first wireless terminal responses is in the biography received
Defeated request with determined by power level transmit request response.
Figure 14 is the diagram of exemplary first wireless terminal 1400 according to exemplary embodiment.Exemplary first wireless end
End 1400 is such as to support peer-to-peer communications and realize such as mobile node wireless of method of flow chart 1300 according to Figure 13
Terminal.
First wireless terminal 1400 includes processor 1402 and the memorizer 1404 being coupled via bus 1406, respectively
Individual element (1402,1404) can in bus 1406 interchange of data and information.First wireless terminal 1400 also includes can such as scheming institute
It is coupled to input module 1408 and the output module 1410 of processor 1402 with showing.But, in certain embodiments, input module
1408 and output module 1410 to be positioned at processor 1402 internal.Input module 1408 can receive input signal.Input module 1408
Can include and the most really include the wireless receiver for receiving input and/or wired or optics input
Interface.Output module 1410 can include and the most really include the transmitting set for transmitting output
And/or wired or optics output interface.
Processor 1402 is configured to: receive corresponding to the communication link of the first wireless terminal with from the second wireless terminal
Quality of service information;Receive the transmission from the second wireless terminal to ask;Request is determined based on the quality of service information received
Response transmission power level;And in response to receive transmission request with determined by power level transmit request response.One
In a little embodiments, the first and second wireless terminals are mobile devices.
In various embodiments, described quality of service information is based on by the traffic gap corresponding with described transmission request
In sent to the data type of first wireless terminal by the second wireless terminal.In certain embodiments, described service quality letter
Breath is based on waiting the data volume being sent to the first wireless terminal by the second wireless terminal.
In certain embodiments, described quality of service information and described transmission request receive in separate signal.
In some other embodiment, described quality of service information and described transmission request receive in individual signals.
In certain embodiments, a part for through-put power, processor 1402 quilt are responded as the request of being configured to determine
It is configured to when the instruction of described quality of service information increases relative to the communication link of the first wireless terminal with from the second wireless terminal
From previously determined request response transmission power level, request response transmission power level is increased during the service quality answered.One
In a little embodiments, responding a part for through-put power as the request of being configured to determine, processor 1402 is configured to when described
Quality of service information instruction reduce with from the second wireless terminal to the service quality that the communication link of the first wireless terminal is corresponding
Time from previously determined request response transmission power level, reduce request response transmission power level.In various embodiments,
Respond a part for through-put power as the request of being configured to determine, processor 1402 is configured to: receipts based on transmission request
Minimum request response transmission power level is determined to power;And when previously determined request response transmission power level exceedes institute
The minimum request response transmission power level determined and the instruction of described quality of service information reduce with from the second wireless terminal to the
During the corresponding service quality of the communication link of one wireless terminal, reduction from previously determined request response transmission power level
Request response transmission power level.
Figure 15 be can and the most in fig. 14 institute diagrammatic first wireless terminal 1400 in make
Module assembled part 1500.Each module in assembly 1500 can realize in the hardware in the processor 1402 of Figure 14, example
As being embodied as Individual circuits.Alternatively, each module can realize and be stored in first shown in Figure 14 wireless end in software
In the memorizer 1404 of end 1400.Although being illustrated as single processor in Figure 14 embodiment, such as one computer, but should
Understanding, processor 1402 can be implemented as one or more processor, such as multiple stage computer.When realizing in software, respectively
Module is included in and is when executed by being configured to processors 1402 such as such as computers realize the merit corresponding with this module
The code of energy.In embodiment during module assembled part 1400 is stored in memorizer 1404 wherein, memorizer 1404 is to include
The computer program of the computer-readable medium containing code, being used for of the most corresponding each module of this code causes such as
Processor 1402 at least one computer such as grade realizes the individual code of the function corresponding to these modules.
Can use based on devices at full hardware or module based on full software.It should be appreciated that, software and hardware (is such as realized
Circuit) any combination of module can be used to realize these functions.It is to be appreciated that in Figure 15 institute diagrammatic each module control and/or
Configure the elements such as the first wireless terminal 1400 or such as processor 1402 therein to perform in the method flow diagram 1300 of Figure 13
The function of diagrammatic corresponding steps.
As shown in Figure 15, module assembled part 1500 includes: for receive with from the second wireless terminal to first wireless end
The module 1502 of the corresponding quality of service information of communication link of end;Ask for receiving the transmission from the second wireless terminal
Module 1504;For determining the module 1506 of request response transmission power level based on the quality of service information received;And
For in response to receive transmission request with determined by power level transmit request response module 1508.In some embodiments
In, the described second and first wireless terminal is mobile device.
Quality of service information be in certain embodiments based on by with in the described transmission corresponding traffic gap of request by
Second wireless terminal sends the data type of the first wireless terminal to.Quality of service information be in certain embodiments based on etc.
Treat to be sent to the data volume of first wireless terminal by the second wireless terminal.
In certain embodiments, quality of service information and described transmission request receive in separate signal.At it
In his some embodiments, quality of service information and described transmission request receive in individual signals.
In certain embodiments, for determining the mould of request response transmission power level based on the quality of service information received
Block 1506 includes one or more in module 1510,1512,1514 and 1516.Module 1510 is for when described Service Quality
Amount information instruction increase with from the second wireless terminal to during the service quality that the communication link of the first wireless terminal is corresponding from elder generation
The front request response transmission power level determined acts the module increasing request response through-put power.Module 1512 is for when described
Quality of service information instruction reduce with from the second wireless terminal to the service quality that the communication link of the first wireless terminal is corresponding
Time from previously determined request response transmission power level, reduce the module of request response through-put power.Module 1514 be for
The power that receives based on transmission request determines the module of minimum request response transmission power level;Module 1516 is for previously
The request response transmission power level determined exceed determined by minimum request response transmission power level and described service quality
Information instruction reduce with during from the second wireless terminal to the service quality that the communication link of the first wireless terminal is corresponding, from previously
The request response transmission power level determined acts the module reducing request response transmission power level.
Figure 16 is operation includes from the second wireless terminal to the system of the first wireless communication link of the 3rd wireless terminal
The flow chart 1600 of illustrative methods of the first wireless terminal, described first communication link have than from the 4th wireless terminal to
The second higher priority of communication link of the first wireless terminal.In certain embodiments, this system is peer wireless Communications system
System.The operation of this illustrative methods starts in step 1602, is powered at this first wireless terminal and initializes, and advances to
Step 1604.
In step 1604, the first wireless terminal reception is from the signal of the second wireless terminal, such as from the second wireless end
End is sent to the transfer request signal of the 3rd wireless terminal.Operation advances to step 1606 and 1608 from step 1604.
In step 1606, the first wireless terminal reception is asked, such as from the 4th nothing from the transmission of the 4th wireless terminal
Line terminal is sent to the transmission request of the first wireless terminal.In step 1608, the first wireless terminal reception is wireless from the 4th
The quality of service information corresponding with the second link of terminal.Quality of service information is based on waiting by the in certain embodiments
Four wireless terminals send the data volume of the first wireless terminal to.In certain embodiments, quality of service information instruction is with the 4th
The service quality rating that the Traffic type transmitted is corresponding is waited at wireless terminal.Operation advances to from step 1606 and 1608
Step 1610.
In step 1610, the first wireless terminal according to from the second wireless terminal reception to signal and wireless from the 4th
What terminal received transmits a request to estimate the quality of the second communication link.In certain embodiments, the estimating of the second communication link
Meter quality is the present communications speed supported based on the second communication link.In various embodiments, the estimating of the second communication link
Meter quality is current signal based on the second communication link.Operation advances to step 1612 from step 1610.
In step 1612, the first wireless terminal based on: i) corresponding with the second link historical link quality information or
Ii) at least one in the quality of service information corresponding with the second communication link is dynamically generated concession threshold value.Real at some
Execute in example, be dynamically generated described threshold value and include when quality of service information instruction increases the service corresponding with the second communication link
The threshold value less than previous threshold is generated during credit rating.In certain embodiments, it is dynamically generated described threshold value to include when service
Quality information instruction generates the threshold value higher than previous threshold when reducing the service quality rating corresponding with the second communication link.?
In various embodiments, historical link quality information is included in the average data that previous time interval period the second communication link is supported
Rate.Operation advances to step 1614 from step 1612.
In step 1614, the first wireless terminal estimation based on the second communication link quality and the threshold that is dynamically generated
Value be made whether to transmit the judgement of transmission request response.In certain embodiments, step 1614 includes sub-step 1616 He
One or more in 1618.In sub-step 1616, the first wireless terminal by the estimation quality of the second communication link with dynamically
The threshold value that ground generates compares.In sub-step 1618, when the described estimation quality comparing instruction the second communication link exceedes
During the threshold value that this is dynamically generated, the first wireless terminal determines to transmit described transmission request response.
Figure 17 is the diagram of exemplary first wireless terminal 1700 according to exemplary embodiment.Exemplary first wireless end
End 1700 is such as to support peer-to-peer communications and realize such as mobile node wireless of method of flow chart 1600 according to Figure 16
Terminal.First wireless terminal 1700 is such as to include from the second wireless terminal to the first wireless communication link of the 3rd wireless terminal
System in the first wireless terminal, described first communication link has than from the of the 4th wireless terminal to the first wireless terminal
The two higher priority of communication link.
First wireless terminal 1700 includes processor 1702 and the memorizer 1704 being coupled via bus 1706, respectively
Individual element (1702,1704) can in bus 1706 interchange of data and information.First wireless terminal 1700 also includes can such as scheming institute
It is coupled to input module 1708 and the output module 1710 of processor 1702 with showing.But, in certain embodiments, input module
1708 and output module 1710 to be positioned at processor 1702 internal.Input module 1708 can receive input signal.Input module 1708
Can include and the most really include the wireless receiver for receiving input and/or wired or optics input
Interface.Output module 1710 can include and the most really include the transmitting set for transmitting output
And/or wired or optics output interface.
Processor 1702 is configured to: receive the signal from the second wireless terminal;Receive from the 4th wireless terminal
Transmission request;According to from the second wireless terminal reception to signal and from the 4th wireless terminal reception to transmit a request to estimate
Count the quality of the second communication link;And based on: i) corresponding with the second link historical link quality information or ii) with second
At least one in the quality of service information that communication link is corresponding is dynamically generated concession threshold value.In certain embodiments, from
Second wireless terminal reception to signal be the transfer request signal being sent to the 3rd wireless terminal from the second wireless terminal.History
Link quality information is included in the average data rate that previous time interval period the second communication link is supported in certain embodiments.
In certain embodiments, the estimation quality of the second communication link is the present communications supported based on the second communication link
Speed.In various embodiments, the estimation quality of the second communication link is current signal based on the second communication link.
In certain embodiments, as being configured to be dynamically generated a part for described threshold value, processor 1702 is joined
It is set to when quality of service information instruction increases the service quality rating corresponding with the second communication link generate less than previous threshold
The threshold value of value.In certain embodiments, as being configured to be dynamically generated a part for described threshold value, processor 1702 is joined
It is set to when quality of service information instruction reduces the service quality rating corresponding with the second communication link generate higher than previous threshold
The threshold value of value.
In certain embodiments, processor 1702 is further configured to: receive from the 4th wireless terminal with second
The quality of service information that link is corresponding.In certain embodiments, quality of service information is based on waiting by the 4th wireless terminal
Send the data volume of the first wireless terminal to.In various embodiments, quality of service information instruction and described 4th wireless end
The service quality rating that the Traffic type transmitted is corresponding is waited at end.
Processor 1702 is further configured to estimation quality based on the second communication link and the threshold value being dynamically generated
Be made whether to transmit the judgement of transmission request response.In certain embodiments, as being configured to the part decision making, place
Reason device 1702 is configured to: the estimation quality of the second communication link compared with the threshold value being dynamically generated;And institute
Stating to compare indicates the estimation quality of the second communication link to determine when exceeding this threshold value being dynamically generated to transmit described transmission request
Response.
Figure 18 be can and the most in fig. 17 institute diagrammatic first wireless terminal 1700 in make
Module assembled part 1800.Each module in assembly 1800 can realize in the hardware in the processor 1702 of Figure 17, example
As being embodied as Individual circuits.Alternatively, each module can realize and be stored in first shown in Figure 17 wireless end in software
In the memorizer 1704 of end 1700.Although being illustrated as single processor in Figure 17 embodiment, such as one computer, but should
Understanding, processor 1702 can be implemented as one or more processor, such as multiple stage computer.When realizing in software, respectively
Module is included in and is when executed by being configured to processors 1702 such as such as computers realize the merit corresponding with this module
The code of energy.In embodiment during module assembled part 1800 is stored in memorizer 1704 wherein, memorizer 1704 is to include
The computer program of the computer-readable medium containing code, being used for of the most corresponding each module of this code causes such as
Processor 1702 at least one computer such as grade realizes the individual code of the function corresponding to these modules.
Can use based on devices at full hardware or module based on full software.It should be appreciated that, software and hardware (is such as realized
Circuit) any combination of module can be used to realize these functions.It is to be appreciated that in Figure 18 institute diagrammatic each module control and/or
Configure the elements such as the first wireless terminal 1700 or such as processor 1702 therein to perform in the method flow diagram 1600 of Figure 16
The function of diagrammatic corresponding steps.
As shown in Figure 18, module assembled part 1800 includes: for receiving the module of the signal from the second wireless terminal
1802;For receiving the module 1804 of the transmission request from the 4th wireless terminal;For according to from the second wireless terminal reception
To signal and from the 4th wireless terminal reception to transmit a request to estimate the module 1810 of the quality of the second communication link;
And for based on i) corresponding with the second link historical link quality information or ii) corresponding with the second communication link
At least one in quality of service information is dynamically generated the module 1812 of concession threshold value.In certain embodiments, from the second nothing
The signal that line terminal receives is the transfer request signal being sent to the 3rd wireless terminal from the second wireless terminal.Historical link matter
Amount information is included in the average data rate that previous time interval period the second communication link is supported in certain embodiments.
In certain embodiments, the estimation quality of the second communication link is the present communications supported based on the second communication link
Speed.In various embodiments, the estimation quality of the second communication link is current signal based on the second communication link.
In certain embodiments, the module 1812 being used for being dynamically generated described threshold value includes for working as quality of service information
Instruction generates the module 1816 of the threshold value less than previous threshold when increasing the service quality rating corresponding with the second communication link.
In various embodiments, the module 1812 being used for being dynamically generated described threshold value includes for reducing when quality of service information instruction
The module 1818 of the threshold value higher than previous threshold is generated during corresponding with the second communication link service quality rating.
Module assembled part 1800 also includes: for receiving the service corresponding with the second link from the 4th wireless terminal
The module 1806 of quality information;And make for estimation quality based on the second communication link and the threshold value that is dynamically generated
Go out whether to transmit the module 1814 of the judgement of transmission request response.Quality of service information be in certain embodiments based on wait by
4th wireless terminal sends the data volume of the first wireless terminal to.Quality of service information indicates and the 4th in certain embodiments
The service quality rating that the Traffic type transmitted is corresponding is waited at wireless terminal.
In various embodiments, the module 1814 decision making include for by the estimation quality of the second communication link with dynamic
The module 1820 that compares of threshold value that state ground generates and in the described estimation quality comparing instruction the second communication link
Determine when exceeding this threshold value being dynamically generated that one or more in the module 1822 of response is asked in the described transmission of transmission.
Figure 19 is operation includes from the second wireless terminal to the system of the first wireless communication link of the 3rd wireless terminal
The flow chart 1900 of illustrative methods of the first wireless terminal, described first communication link have than from the first wireless terminal to
The second higher priority of communication link of the 4th wireless terminal.In certain embodiments, this system is peer wireless Communications system
System.In certain embodiments, first and the 4th wireless terminal be mobile communication equipment.The operation of this illustrative methods is in step
1902 start, and are powered at this first wireless terminal and initialize, and advance to step 1904.
In step 1904, the first wireless terminal transmits transmission request to the 4th wireless terminal.Operation is from step 1904 row
Enter step 1906.
In step 1906, the first wireless terminal reception from the 3rd wireless terminal in response to from the second wireless terminal
Transmission request and transmit first transmission request response.Operation advances to step 1908 from step 1906.
In step 1908, the first wireless terminal reception passing in response to by the first wireless terminal from the 4th wireless terminal
The second transmission request response that the transmission sent is asked and transmitted.Operation advances to step 1910 from step 1908.
In step 1910, the first wireless terminal according at least one from the 3rd wireless terminal reception to signal determine
The historical link quality information corresponding with the first communication link.In certain embodiments, this at least one signal is from
The broadcast singal of the reception and registration historical speed information of three wireless terminals.In various embodiments, wireless from the 3rd according at least one
The signal that terminal receives determines that the historical link quality information corresponding with the first communication link includes from from the 3rd wireless end
End is sent to multiple signal accumulation link quality information of the second wireless terminal, each in the plurality of signal pass on not
With the link quality information that the period is corresponding.In some these type of embodiments, link quality information includes link SNR information or speed
At least one in rate information.Operation advances to step 1912 from step 1910.
In step 1912, the first wireless terminal estimates the first communication according to the first transmission request response signal received
The quality of link.In certain embodiments, estimate that the quality of the first communication link expects the second link determined by including using
Traffic signaling transmission power level.In various embodiments, the quality estimating the first communication link is based on second received
Transmission request response signal performs.Operation advances to step 1914 from step 1912.
In step 1914, the first wireless terminal based on: i) corresponding with the first link historical link quality information or
Ii) at least one in the quality of service information corresponding with the second communication link is dynamically generated concession threshold value.Service quality
Information is based on waiting the data volume being sent to the 4th wireless terminal by the first wireless terminal in certain embodiments.History chain
Road quality information is included in the average data rate that previous time interval period the first communication link is supported in certain embodiments.Clothes
Business quality information indicates in certain embodiments and waits the service that the Traffic type transmitted is corresponding at the first wireless terminal
Credit rating.In certain embodiments, it is dynamically generated described threshold value to include leading to second when quality of service information instruction increases
The threshold value less than previous threshold is generated during the letter corresponding service quality rating of link.In various embodiments, it is dynamically generated
Described threshold value includes generating height when quality of service information instruction reduces the service quality rating corresponding with the second communication link
Threshold value in previous threshold.Operation advances to step 1916 from step 1914.
In step 1916, the first wireless terminal estimation based on the first communication link quality and the threshold being dynamically generated
Value be made whether to transmit the judgement of traffic data in the span line corresponding with the second transmission request response received.One
In a little embodiments, it is one or more that step 1916 includes in sub-step 1918 and 1920.In sub-step 1918, first is wireless
The estimation quality of the first communication link is compared by terminal with the threshold value being dynamically generated, and in sub-step 1920, when
When the described estimation quality comparing instruction the first communication link exceedes this threshold value being dynamically generated, the first wireless terminal determines to pass
Send traffic data.
Figure 20 is the diagram of exemplary first wireless terminal 2000 according to exemplary embodiment.Exemplary first wireless end
End 2000 is such as to support peer-to-peer communications and realize such as mobile node wireless of method of flow chart 1900 according to Figure 19
Terminal.First wireless terminal 1900 is such as to include from the second wireless terminal to the first wireless communication link of the 3rd wireless terminal
System in the first wireless terminal, described first communication link has than from the of the first wireless terminal to the 4th wireless terminal
The two higher priority of communication link.In certain embodiments, first and the 4th wireless terminal be mobile communication equipment.
First wireless terminal 2000 includes processor 2002 and the memorizer 2004 being coupled via bus 2006, respectively
Individual element (2002,2004) can in bus 2006 interchange of data and information.First wireless terminal 2000 also includes can such as scheming institute
It is coupled to input module 2008 and the output module 2010 of processor 2002 with showing.But, in certain embodiments, input module
2008 and output module 2010 to be positioned at processor 2002 internal.Input module 2008 can receive input signal.Input module 2008
Can include and the most really include the wireless receiver for receiving input and/or wired or optics input
Interface.Output module 2010 can include and the most really include the transmitting set for transmitting output
And/or wired or optics output interface.
Processor 2002 is configured to: transmit transmission request to the 4th wireless terminal;Receive from the 3rd wireless terminal
The the first transmission request response transmitted in response to the transmission request from the second wireless terminal;And receive wireless from the 4th
Second transmission request response of terminal.Processor 2002 is further configured to according to the first transmission request response letter received
Number estimate the first communication link quality;And based on: i) corresponding with the first link historical link quality information or ii) with
At least one in the quality of service information that second communication link is corresponding is dynamically generated concession threshold value.
In certain embodiments, as being configured to estimate a part for the quality of the first communication link, processor 2002
The second traffic signaling transmission power level is expected determined by being configured to use.In various embodiments, as being joined
It is set to estimate that a part for the quality of the first communication link, processor 2002 are configured to use the second transmission request received to ring
Induction signal.
Processor 2002 be further configured to according at least one from the 3rd wireless terminal reception to signal determine
The historical link quality information corresponding with the first communication link.In certain embodiments, this at least one signal is from
The broadcast singal passing on described historical speed information of three wireless terminals.Historical link quality information includes in certain embodiments
The average data rate that previously time interval period the first communication link is supported.
In various embodiments, as be configured to according at least one from the 3rd wireless terminal reception to signal come really
A part for the fixed historical link quality information corresponding with the first communication link, processor 2002 is further configured to from certainly
3rd wireless terminal is sent to multiple signal accumulation link quality information of the second wireless terminal, each in the plurality of signal
The link quality information that individual reception and registration is corresponding with different periods.Link quality information includes that link SNR believes in certain embodiments
At least one in breath or rate information.
Processor 2002 is further configured to estimation quality based on the first communication link and the threshold being dynamically generated
Value be made whether to transmit the judgement of traffic data in the span line corresponding with the second transmission request response received.One
In a little embodiments, as being configured to make a part for described judgement, processor 2002 is configured to: by the first communication link
Estimation quality compare with the threshold value being dynamically generated;And in the described estimation quality comparing instruction the first communication link
Determine to transmit described traffic data when exceeding this threshold value being dynamically generated.
Quality of service information can and sometimes really based on wait sent to the 4th wireless end by the first wireless terminal
The data volume of end.Quality of service information and the most really can wait at instruction and described first wireless terminal and being transmitted
The service quality rating that Traffic type is corresponding.
In certain embodiments, as being configured to be dynamically generated a part for described threshold value, processor 2002 is joined
It is set to when quality of service information instruction increases the service quality rating corresponding with the second communication link generate less than previous threshold
The threshold value of value.In various embodiments, as being configured to be dynamically generated a part for described threshold value, processor 2002 is joined
It is set to when quality of service information instruction reduces the service quality rating corresponding with the second communication link generate higher than previous threshold
The threshold value of value.
Figure 21 be can and the most in fig. 20 institute diagrammatic first wireless terminal 2000 in make
Module assembled part 2100.Each module in assembly 2100 can realize in the hardware in the processor 2002 of Figure 20, example
As being embodied as Individual circuits.Alternatively, each module can realize and be stored in first shown in Figure 20 wireless end in software
In the memorizer 2004 of end 2000.Although being illustrated as single processor in Figure 20 embodiment, such as one computer, but should
Understanding, processor 2002 can be implemented as one or more processor, such as multiple stage computer.When realizing in software, respectively
Module is included in and is when executed by being configured to processors 2002 such as such as computers realize the merit corresponding with this module
The code of energy.In embodiment during module assembled part 2100 is stored in memorizer 2104 wherein, memorizer 2104 is to include
The computer program of the computer-readable medium containing code, being used for of the most corresponding each module of this code causes such as
Processor 2102 at least one computer such as grade realizes the individual code of the function corresponding to these modules.
Can use based on devices at full hardware or module based on full software.It should be appreciated that, software and hardware (is such as realized
Circuit) any combination of module can be used to realize these functions.It is to be appreciated that in Figure 21 institute diagrammatic each module control and/or
Configure the elements such as the first wireless terminal 2000 or such as processor 2002 therein to perform in the method flow diagram 1900 of Figure 19
The function of diagrammatic corresponding steps.
As shown in Figure 21, module assembled part 2100 includes: for transmitting the module of transmission request to the 4th wireless terminal
2102;For receiving the first biography transmitted in response to the transmission request from the second wireless terminal from the 3rd wireless terminal
The module 2104 of defeated request response;And for receive from the 4th wireless terminal in response to by first wireless terminal transmit
The module 2106 of the second transmission request response that transmission is asked and transmitted.
Module assembled part 2100 also includes: for determining and the from the signal of the 3rd wireless terminal according at least one
The module 2108 of the historical link quality information that one communication link is corresponding;For according to the first transmission request response received
The module 2110 of the quality of Signal estimation the first communication link;For based on i) corresponding with the first link historical link matter
Amount information or ii) at least one in the quality of service information corresponding with the second communication link is dynamically generated concession threshold value
Module 2112;And for estimation quality based on the first communication link and the threshold value that is dynamically generated be made whether with
The the second transmission request received responds the module 2114 of the judgement transmitting traffic in corresponding data transmission segment.
In certain embodiments, this at least one signal is the wide of the reception and registration historical speed information from the 3rd wireless terminal
Broadcast signal.In various embodiments, historical link quality information is included in the first communication link support of previous time interval period
Average data rate.
In certain embodiments, module 2108 includes for many from being sent to the second wireless terminal from the 3rd wireless terminal
The module 2116 of individual signal accumulation link quality information, each reception and registration in the plurality of signal is corresponding with different periods
Link quality information.In certain embodiments, at least during link quality information includes link SNR information or rate information
Person.
In certain embodiments, module 2110 includes: for expecting the second traffic signalling determined by use
Power level estimates the module 2118 of the quality of the first communication link;And for based on the second transmission request response received
Signal performs one or more in the module 2120 estimated.
In certain embodiments, module 2112 includes one or more in the following: for believing when service quality
Breath instruction generates the module of the threshold value less than previous threshold when increasing the service quality rating corresponding with the second communication link
2122, and for generating height when quality of service information instruction reduces the service quality rating corresponding with the second communication link
Module 2124 in the threshold value of previous threshold.In certain embodiments, quality of service information is based on waiting by the first wireless end
End sends the data volume of the 4th wireless terminal to.In various embodiments, quality of service information instruction is first wireless with described
End waits being transmitted and such as waits and sent to the traffic data class of the 4th wireless terminal by the first wireless terminal
The service quality rating that type is corresponding.
In certain embodiments, module 2114 includes one or more in the following: for by the first communication chain
The module 2126 that the estimation quality on road and the threshold value being dynamically generated compare;And for indicating first to lead in described comparison
The estimation quality of letter link determines to transmit the module 2128 of described traffic data when exceeding this threshold value being dynamically generated.
The technology of each embodiment can use the combination of software, hardware and/or software and hardware to realize.Various embodiments
For device, the mobile node the most such as moving access terminal etc, the base station including one or more junction point,
And/or communication system.Various embodiments are also directed to method, such as, control and/or operate mobile node, base station and/or the most main
The method of the communication systems such as machine.Various embodiments are also directed to include the one or more steps for controlling machine implemented method
Machine (such as computer) computer-readable recording mediums such as such as ROM, RAM, CD, the hard disk of machine readable instructions.
Should be understood that disclosed during the concrete order of each step and stratum be the example of exemplary way.Based on setting
Meter preference, it should be understood that during these, concrete order or the stratum of each step can be rearranged and still fall in the scope of the present disclosure
Within.Appended claim to a method presents the key element of each step with sample order, and be not meant to be defined to be presented
Concrete order or stratum.
In various embodiments, node described herein is to use execution corresponding with one or more of methods
One or more module of step realizes, such as, receive and from the second wireless terminal to the communication chain of the first wireless terminal
The quality of service information that road is corresponding;Receive the transmission from the second wireless terminal to ask;Based on the quality of service information received
Determine request response transmission power level;And in response to receive transmission request with determined by power level transmit request ring
Should wait.Thus, in certain embodiments, various features use all modules to realize.This generic module can use software, hard
Part or hardware realize with the combination of software.A lot of method described above or method step can utilize to be included in such as to be lifted
For example, the machine-executable instruction of the such as software in the machine readable media of the memory devices such as RAM, floppy disk realizes, with
The machine controlling such as general purpose computer in the case of being with or without other hardware such as realizes in one or more nodes
All or part method described above.Therefore, various embodiments are also especially for including for making such as processor with relevant
The machines such as connection hardware perform the machine readable media of the machine-executable instruction of the one or more steps of method described above.
Some embodiments for the equipment of such as communication equipment, including be configured to realize one of one or more methods of the present invention,
Multiple or the processor of Overall Steps.
Some embodiments are for including the computer program of computer-readable medium, and this computer-readable medium includes
The most described above for making a computer or multiple stage computer realize various function, step, action and/or operation
The code of one or more steps.Depending on embodiment, it is right that computer program can and include the most really
The different code of each step that should be to be performed.Therefore, computer program and can include counterparty the most really
Rule is as controlled the code of each individual step of the method for communication equipment or node.Code can be stored in all
On the computer-readable mediums such as RAM (random access memory), ROM (read only memory) or other type of storage device
The form of the machine-executable instructions such as such as computer.In addition to for computer program, some embodiments are for configuration
Become realize each function of one or more methods described above, step, action and/or operation in one or more
Processor.Correspondingly, some embodiments are for being configured to realize the example of some or all steps of method described herein
Processor such as CPU etc.Processor can be used in communication equipment the most described herein or miscellaneous equipment.
In certain embodiments, an equipment of the communication equipment such as the most such as wireless terminal or the example of multiple equipment
As the processor of CPU or multiple processor are configured to perform such as to be described as the step of the method performed by communication equipment.
Therefore, a part and not all embodiments for have include various described with performed by the equipment including processor
The equipment of processor of the corresponding module of each step of method, such as communication equipment.The not all enforcement in a part
In example, it is every that the equipment of such as communication equipment includes with the various described methods performed by the equipment including processor
The module that one step is corresponding.These modules can use software and/or hardware to realize.
Despite described in the context of ofdm system, but among the method and apparatus of various embodiment at least
Some can be applicable to the large-scale communication system including many non-OFDM and/or non-cellular systems.These methods and dress
In putting, at least some can be applicable to hybrid system, such as, include the system of OFDM and CDMA signaling technology.
In view of above description, other modification numerous of the method and apparatus of various embodiments described above are to ability
Field technique personnel will be apparent from.This type of modification falls being considered as in scope.These method and apparatus can and
In various embodiments really with CDMA, OFDM (OFDM) and/or various other kinds of can be used for provide access
The communication technology of the wireless communication link between node and mobile node is used together.In certain embodiments, these access
Node is implemented as using the next base station setting up communication link with mobile node of OFDM and/or CDMA.In various embodiments, move
Dynamic node be implemented as the notebook of various method, personal digital assistant (PDA) or other include receive
Machine/transmitter circuitry and logic and/or the portable set of routine.
Claims (18)
1. the method for the scheduling of self adaptation distributing of operation, institute on the first wireless terminal in peer communication system
The method of stating includes:
Receive with from the second wireless terminal to the quality of service information that the communication link of described first wireless terminal is corresponding;
Receive the transmission from described second wireless terminal to ask;
Determine request response transmission power level based on the quality of service information received so that lower priority link more have can
Transmitter can be realized give way;And
In response to the described transmission received request with determined by power level transmit request response.
2. the method for claim 1, it is characterised in that the described second and first wireless terminal is mobile device.
3. the method for claim 1, it is characterised in that described quality of service information is based on asking with described transmission
Seek the data type being sent to described first wireless terminal in corresponding traffic gap by described second wireless terminal.
4. the method for claim 1, it is characterised in that described quality of service information is based on waiting by described second nothing
Line terminal sends the data volume of described first wireless terminal to.
5. the method for claim 1, it is characterised in that described quality of service information and described transmission request are separately
Signal in receive.
6. the method for claim 1, it is characterised in that described quality of service information and described transmission request are single
Signal receives.
7. the method for claim 1, it is characterised in that determine request response through-put power to include from previously determined and ask
Response transmission power level is asked to play increase described request response transmission power level.
8. the method for claim 1, it is characterised in that determine request response through-put power to include from previously determined and ask
Response transmission power level is asked to play reduction described request response transmission power level.
9. the method for claim 1, it is characterised in that determine that request response through-put power includes:
The power that receives based on described transmission request determines minimum request response transmission power level;And
Minimum request response transmission power level determined by exceeding when described previously determined request response transmission power level
And the instruction of described quality of service information reduce with from described second wireless terminal to the described communication chain of described first wireless terminal
During the corresponding service quality in road, from previously determined request response transmission power level, reduce described request response transmission merit
Rate level.
10. first wireless terminal for the scheduling of self adaptation distributing in peer communication system, described first communication sets
For including:
For receive with from the second wireless terminal to the quality of service information that the communication link of described first wireless terminal is corresponding
Device;
For receiving the device of the transmission request from described second wireless terminal;
For determine based on the quality of service information received request response transmission power level so that lower priority link more
Likely realize the device that transmitter is given way;And
For in response to described receive transmission request with determined by power level transmit request response device.
11. first wireless terminals as claimed in claim 10, it is characterised in that the described second and first wireless terminal is mobile
Equipment.
12. first wireless terminals as claimed in claim 10, it is characterised in that described quality of service information be based on will with
The traffic gap that described transmission request is corresponding is sent to the data class of described first wireless terminal by described second wireless terminal
Type.
13. first wireless terminals as claimed in claim 10, it is characterised in that described quality of service information be based on wait by
Described second wireless terminal sends the data volume of described first wireless terminal to.
14. first wireless terminals as claimed in claim 10, it is characterised in that described quality of service information and described transmission please
Seeking Truth receives in separate signal.
15. first wireless terminals as claimed in claim 10, it is characterised in that described quality of service information and described transmission please
Seeking Truth receives in individual signals.
16. first wireless terminals as claimed in claim 10, it is characterised in that described in be used for determining request response through-put power
Device include for increasing described request response transmission power level from previously determined request response transmission power level
Device.
17. first wireless terminals as claimed in claim 10, it is characterised in that described in be used for determining request response through-put power
Device include for reducing described request response transmission power level from previously determined request response transmission power level
Device.
18. first wireless terminals as claimed in claim 10, it is characterised in that described in be used for determining request response through-put power
Device include:
The device of minimum request response transmission power level is determined for the power that receives based on described transmission request;And
Minimum request response through-put power determined by exceed when described previously determined request response transmission power level
Level and the instruction of described quality of service information reduce leads to from the described of described second wireless terminal to described first wireless terminal
From previously determined request response transmission power level, reduce described request response during the letter corresponding service quality of link to pass
The device of defeated power level.
Applications Claiming Priority (3)
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US12/268,175 US8072917B2 (en) | 2007-10-31 | 2008-11-10 | Methods and apparatus supporting adaptive decentralized traffic scheduling for wireless communications |
US12/268,175 | 2008-11-10 | ||
PCT/US2009/062889 WO2010053851A1 (en) | 2008-11-10 | 2009-10-30 | Methods and apparatus supporting adaptive decentralized traffic scheduling for wireless communications |
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CN101091324A (en) * | 2004-10-14 | 2007-12-19 | 高通弗拉里奥恩技术公司 | Methods and apparatus for determining, communicating and using information which can be used for interference control purposes |
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