CN101523961B - Methods and apparatus related to peer to peer device control - Google Patents

Methods and apparatus related to peer to peer device control Download PDF

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CN101523961B
CN101523961B CN200780038383.XA CN200780038383A CN101523961B CN 101523961 B CN101523961 B CN 101523961B CN 200780038383 A CN200780038383 A CN 200780038383A CN 101523961 B CN101523961 B CN 101523961B
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signal
base station
uplink
module
reciprocity
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CN101523961A (en
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厉隽怿
R·拉罗亚
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Qualcomm Inc
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Qualcomm Inc
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Abstract

The invention describes methods and apparatus related to the sharing of wide area network (WAN) uplink bandwidth with peer to peer communication signaling usage. Typically, a base station uses its WANuplink band to receive uplink signals from wireless terminals using the base station as a point of network attachment. In accordance with a feature, a base station injects a signal, e.g., a beacon si gnal, into its WAN uplink bandwidth, e.g., its WAN frequency division duplex (FDD) uplink band. A peer to peer wireless terminal scans the uplink bandwidth, detects the base station signal, evaluates the received base station signal, and controls peer to peer transmission as a function of the evaluation. Control of peer to peer transmission includes adjusting peer to peer transmission power as a function of the evaluated base station signal. The communications band used for peer to peer communications is, in some embodiments, the same uplink band.

Description

With the relevant method and apparatus of peer device control
Related application
The application requires to enjoy the U.S. Provisional Patent Application S.N.60/845 that the name of submitting on September 15th, 2006 is called " BEACONS IN AMIXED WIRELESS COMMUNICATION SYSTEM ", 053 priority, and it incorporates this paper into clearly with way of reference.
Technical field
The present invention relates to be used for method of wireless communication and device, relate more specifically to the method and apparatus relevant with peer-to-peer communications.
Background technology
Wireless frequency spectrum is a resource a kind of costliness and valuable.In the wide area network system of for example cellular system, the wireless frequency spectrum of distributing to WAN is not utilized often fully.If develop the method and apparatus that to discern and/or to utilize these air link resources of underusing, then will be favourable.For example, if also can the frequency spectrum that distributed or used by WAN be used for peer-to-peer communications according to the mode that can significantly not disturb the frequency spectrum use that is used for WAN communication, then this will benefit.
Summary of the invention
Described about wide area network (WAN) uplink bandwidth and peer-to-peer communications signal are transmitted the method and apparatus that use is shared.Usually, the base station uses its WAN uplink band to come from wireless terminal receiving uplink signal, and wherein this wireless terminal uses this base station as network connection point.According to the characteristic of a plurality of embodiment, for example, the base station keeps in its WAN uplink bandwidth (for example its WAN FDD (FDD) uplink band) sends signal (for example beacon signal).Reciprocity wireless terminal scans uplink bandwidth, base stations detected signal, estimates the base station signal that is received and control equity according to estimation and transmit.The control of equity transmission comprises according to the base station signal of being estimated that receives and judges whether transmission and/or adjust reciprocity through-put power.In certain embodiments, the signal of insertion is used for reciprocity purpose but not is used for the WAN purpose, and in other embodiments, inserts signal and can be used to support peer-to-peer communications and WAN communication.
In certain embodiments, the communication band that is used for peer-to-peer communications present uplink band when receiving base station signal is identical.In this case, reciprocity wireless terminal can maintain on the single frequency band and to the base station signal that is received and respond.
Illustrative methods according to a plurality of embodiment operate wireless communication terminals comprises: scan uplink bandwidth to detect from signal of base station, for example beacon signal or other broadcast singal; Estimation is from signal of base station; And, send reciprocity signal according to estimation from signal of base station.Exemplary wireless communications device according to a plurality of embodiment comprises: scan module is used to scan uplink bandwidth to detect from signal of base station; The signal estimation module is used for estimation from signal of base station; And transmitting set, be used for basis to sending reciprocity signal from the estimation of signal of base station.
The illustrative methods of operating the base station according to a plurality of embodiment comprises: during very first time section, and the cellular communication apparatus receiving uplink signal from sending in uplink band to said base station; Use second frequency band different with said uplink band to come to send at least some said communication equipments, said second frequency band is a downlink band; And during second time period, in said uplink band, send broadcast singal, for example beacon signal.In certain embodiments, the broadcast singal that is sent is reciprocity transmission power level Control Parameter.Exemplary base according to a plurality of embodiment comprises: the wireless receiver module is used for during very first time section at the cellular communication apparatus receiving uplink signal of uplink band from sending to said base station; The transmitting set module; Be used for using downlink tone to bring at least some said communication equipments and send and be used for during second time period, sending broadcast singal at said uplink band, wherein said uplink band is different with said downlink band.Therefore, except that carrying out typical downlink/uplink cellular operated, this base station also sends to the atypia position with broadcast singal, and this broadcast singal is used to support peering.
Although in above summary of the invention, various embodiments has been discussed, should be noted that does not need all embodiment all to comprise identical characteristic, and more above-described characteristics are not essential in certain embodiments but can expect.A large amount of supplementary features, embodiment and benefit have been discussed in the specific descriptions below.
Description of drawings
Fig. 1 is the flow chart according to the illustrative methods of a plurality of embodiment operate wireless communication terminals (for example, supporting the wireless communication terminal of peer-to-peer communications).
Fig. 2 is the diagrammatic sketch of the example wireless terminal (for example, supporting the mobile node of peer-to-peer communications) according to a plurality of embodiment.
Fig. 3 is a flow chart of operating the illustrative methods of base station according to a plurality of embodiment.
Fig. 4 is the diagrammatic sketch according to the exemplary base of a plurality of embodiment.
Fig. 5 is a flow chart of operating the illustrative methods of the Wireless Telecom Equipment of supporting reciprocity signal to transmit (signaling) according to a plurality of embodiment.
Fig. 6 is the diagrammatic sketch of the example wireless communication device (for example, supporting the wireless terminal such as mobile node of peer-to-peer communications) according to a plurality of embodiment.
Fig. 7 is a flow chart of operating the illustrative methods of the Wireless Telecom Equipment of supporting peer-to-peer communications according to a plurality of embodiment, and it comprises the combination of Fig. 7 A and Fig. 7 B.
Fig. 8 is the diagrammatic sketch of the example wireless communication device (for example, supporting the wireless terminal such as mobile node of peer-to-peer communications) according to a plurality of embodiment.
Fig. 9 is the diagrammatic sketch that an exemplary embodiment is shown, and it comprises example communication system, describes the form of frequency band use information and the form that exemplary reciprocity wireless terminal transmission power level information is shown.
Figure 10 is the diagrammatic sketch according to the example wireless communications of a plurality of embodiment.
Figure 11 is a flow chart of operating the illustrative methods of base station according to a plurality of embodiment.
Figure 12 is a flow chart of operating the illustrative methods of base station according to a plurality of embodiment.
Figure 13 is the diagrammatic sketch according to the exemplary base of a plurality of embodiment.
Figure 14 comprises according to the example communication system of a plurality of embodiment and the diagrammatic sketch of frequency band use form.
Figure 15 shows the diagrammatic sketch of the characteristic of a plurality of embodiment, and wherein wide area network has dead time section (silent period) in these embodiment, and wherein reciprocity noise is kept watch on and measure in the base station in this dead time section.
Figure 16 shows the diagrammatic sketch of the certain characteristics of a plurality of embodiment, and is the continuity of the instance of Figure 15.
Figure 17 shows the diagrammatic sketch of the exemplary look-up table that is used for controlling value of the characteristic of a plurality of embodiment.
Figure 18 is a flow chart of operating the illustrative methods of base station (for example, its uplink bandwidth also is used for the base station that reciprocity signal transmits) according to a plurality of embodiment.
Figure 19 is a flow chart of operating the illustrative methods of base station (for example, its uplink bandwidth also is used for the base station that reciprocity signal transmits) according to a plurality of embodiment.
Figure 20 is the diagrammatic sketch of the relation curve of noise W and the control factor α on the trunnion axis on the vertical axis.
Figure 21 is the diagrammatic sketch of the relation curve of noise W and the control factor α on the trunnion axis on the vertical axis, and it compares different brackets and different qualities curve that Figure 15 shows other area interference.
Figure 22 shows the illustrative methods that the selection of the power control factor α that in a plurality of embodiment, uses is adjusted.
Figure 23 shows the diagrammatic sketch that uses in the example bandwidth of some embodiment that time division duplex (TDD) are used for wide area network (for example, being used for cellular communication).
Figure 24 shows the diagrammatic sketch that uses in the example bandwidth of some embodiment that FDD (FDD) are used for wide area network (for example, being used for cellular communication).
Figure 25 is the diagrammatic sketch according to the exemplary multi-mode radio communications device of a plurality of embodiment realizations.
Figure 26 shows according to the exemplary band between wan communication use and peer-to-peer communications use of a plurality of embodiment and the diagrammatic sketch of shared frequency band use.
Figure 27 comprises according to the flow chart of the illustrative methods of the operation multi-mode radio communications device of a plurality of embodiment and exemplary sequential organization information.
Figure 28 is a flow chart of operating the illustrative methods of multi-mode radio communications device according to a plurality of embodiment.
Figure 29 is a flow chart of operating the illustrative methods of multi-mode radio communications device according to a plurality of embodiment.
Figure 30 is a flow chart of operating the illustrative methods of multi-mode radio communications device according to a plurality of embodiment.
Embodiment
Fig. 1 is that wherein this wireless communication terminal is for example supported the wireless communication terminal of peer-to-peer communications according to flow process Figure 100 of the illustrative methods of a plurality of embodiment operate wireless communication terminals.This illustrative methods begins in step 102, and wireless communication terminal powers on and initialization in this step.Operation proceeds to step 104 from beginning step 102.In step 104, wireless communication terminal scanning uplink bandwidth to be to detect from signal of base station, for example from the beacon signal of base station.In a plurality of embodiment, uplink bandwidth comprises by equipment and is used for the class frequency to base station transmit signals, for example comprises one group of OFDM tone of uplink tone piece.What scanned in certain embodiments, has predetermined format from signal of base station.In certain embodiments, by sending at the fixed time of being scanned from signal of base station, the circulation sequential organization of for example should the scheduled time using with respect to the base station or with respect to the scheduled time relevant with reciprocity sequential organization.At base station signal is among some embodiment of beacon signal, and this beacon signal is in the OFDM symbol, to comprise the signal that is less than three tones.
Operation proceeds to step 106 from step 104, and in step 106, wireless communication terminal is estimated from signal of base station what it had detected.In certain embodiments, to comprise the transmission mode of estimating base station signal from signal of base station estimation.Step 106 comprises substep 110.In substep 110, wireless communication terminal is measured the power level from signal of base station.Then, in step 112, wireless communication terminal confirms whether the estimation of step 106 satisfies preassigned.For example, preassigned is that the measured level of the signal that receives from the base station is lower than predetermined threshold.In certain embodiments, when Wireless Telecom Equipment sends reciprocity signal, predetermined threshold is selected, with corresponding at base station place from the desired grade of allowing interference of Wireless Telecom Equipment.If satisfy standard, operation proceeds to step 114 from step 112; Otherwise operation proceeds to step 116 from step 112.In step 114, wireless communication terminal sends reciprocity signal, and in step 116, wireless communication terminal forbids sending reciprocity signal.
Operation proceeds to step 118 from step 114; In step 118; Wireless communication terminal is kept watch on the addition of base station signal; And in step 120, whether base station checks detects power difference between the base station signal (signal that for example, in step 104, detects) of last addition of base station signal and previous detection then.If do not detect power difference, then allow wireless communication terminal to proceed equity transmission, and operation turn back to step 118 from step 120, to keep watch on the addition of base station signal; Yet,, operate from step 120 and proceed to step 122 if detect power difference.
In step 122, wireless communication terminal is adjusted the wireless terminal through-put power according to said difference.Step 122 comprises substep 124,126 and 128.In substep 124, within the acceptable range whether the power level of the addition of base station signal that the wireless communication terminal check is last.If the power level of last addition of base station signal is too high, then this possibly indicate wireless communication terminal and base station too near, and transmission will cause excessive interference from the equity of this wireless communication terminal as far as base station receiver, therefore not allow this transmission.Alternatively; If the power level of last addition of base station signal is low excessively; Then this possibly indicate Wireless Telecom Equipment to shift out the scope of the equity service corresponding with this base station signal; And this wireless communication terminal possibly be arranged in dissimilar frequency spectrums and use corresponding zone, for example with different service providers and/or the corresponding zone of different technologies, does not therefore allow the wireless communication terminal transmission.If the power level of in substep 124, confirming last addition of base station signal is then operated from substep 124 and is proceeded to substep 126 not in tolerance interval; Otherwise operation proceeds to substep 128 from substep 124.
In substep 126, wireless communication terminal is adjusted its through-put power according to said power difference, and proceeds the equity transmission.At some time durations, the adjustment through-put power comprises according to said power difference and reduces through-put power, and At All Other Times, comprises according to said difference according to said discrepancy adjustment through-put power increasing through-put power.For example, if the measured power level that wireless communication terminal detects from signal of base station increases, then wireless communication terminal reduces its reciprocity transmission signals transmission power level.Alternatively, if the measured power level that wireless communication terminal detects from signal of base station reduces, then wireless communication terminal increases its reciprocity transmission signals transmission power level.And At All Other Times, adjust the wireless communication terminal through-put power according to said difference and comprise transmission power level is maintained boundary level.Operation proceeds to step 118 from substep 126, and in step 118, wireless communication terminal is kept watch on the addition of base station signal.
Get back to substep 128, in substep 128, wireless communication terminal adjusts to zero with its through-put power, and stops the equity transmission.Operation proceeds to step 104 from substep 128, in step 104, and wireless communication terminal scanning base station signal.
Fig. 2 is the diagrammatic sketch according to the example wireless terminal 2300 of a plurality of embodiment, and wherein this wireless terminal 2300 for example is a mobile node of supporting peer-to-peer communications.Example wireless terminal 2300 comprises receiver module 2302, transmitter module 2304, processor 2306, user I/O equipment 2308 and the memory 2310 that is coupled via bus 2312, and wherein each element can pass through bus 2312 swap datas and information.Memory 2310 comprises routine 2322 and data/information 2324.Processor 2306, CPU for example, executive routine 2322 and use data/information 2324 in the memory 2310 to control the operation and the implementation method of wireless terminal 2300, the for example method of the flow process 100 of Fig. 1.
Receiver module 2302, for example the OFDM receiver is coupled to reception antenna 2314, and wherein wireless terminal receives signal via reception antenna 2314.Received signal comprises broadcast singal, the beacon signal of for example during the uplink cell signal transmits suspended predetermined time interval, being sent at its frequency band that is used for uplink cell communication by the base station.Received signal also comprises coming the reciprocity signal of other wireless terminal of operating in the comfortable peering pattern; Said reciprocity signal uses the base station uplink frequency band to transmit, and at least a portion of reciprocity signal was transmitted during the time interval of uplink cell communication activity.Receiver module 2302 also comprises tuner module 2316, is used to select the frequency band that will receive.
Transmitter module 2304, for example the OFDM transmitter is coupled to transmitting antenna 2318, and wherein wireless terminal 2300 sends reciprocity signal via transmitting antenna 2318.The reciprocity signal transmission of transmitting set module 2304 is responses of carrying out from the estimation of the detection signal of base station.For example; In certain embodiments; The predetermined landing signal that is detected uses also being can be used for peer-to-peer communications by this uplink band of the indication of the existence in the potential cellular uplink bandwidth that scans, the beacon signal that wherein said predetermined landing signal for example is complementary with predetermined format such as special high power OFDM tone in the OFDM symbol or tone sets.Continue this instance, in certain embodiments, wireless terminal 2300 uses the received power level of the base station broadcast signal in the uplink bandwidth to confirm the maximum reciprocity through-put power that allows.Transmitter module 2304 comprises tuner module 2320, wherein in certain embodiments, tuner module 2320 is set to the uplink band that is using the base station.In certain embodiments, tuner module 2320 is used for tuning transmitter 2304, needn't use the whole of this frequency set to use the part in the frequency set that just in the uplink cell frequency band, is using.For example, in certain embodiments, the peer-to-peer communications frequency band is the subclass of the uplink cell communication band corresponding with it.At least a portion of the reciprocity signal that is sent is to use and transmits with the cellular uplink signal that the identical air link resources of employed air link resources sends.In certain embodiments, receiver module 2302 is used identical antenna with transmitter module 2304.In certain embodiments, two tuner modules (2316,2320) are set to the same frequency band that is used for peer-to-peer communications, for example identical uplink cell communication band.
For example, user I/O equipment 2308 comprises microphone, keyboard, keypad, camera, switch, loud speaker, display etc.User I/O equipment 2308 allows the partial function at least of user input data/information, visit dateout/information and the control wireless terminal 2300 of wireless terminal 2300, for example initiates the peer-to-peer communications session.
Routine 2322 comprises Communications routines 2326 and wireless terminal control routine 2328.The various communication protocols that Communications routines 2326 realizes by wireless terminal 2300 uses.The operation and the implementation method of wireless terminal control routine 2328 control wireless terminals 2300.Wireless terminal control routine 2328 comprises scan module 2330, signal estimation module 2332, the base station signal power level tracking module 2334 that receives, power control module 2336 and reciprocity signal delivery module 2338.
Data/information 2324 comprises uplink bandwidth data/information 2344; With the corresponding format information 2350 of the base station broadcast signal of in uplink bandwidth, broadcasting; Round-robin scheduling information 2352; Tuner is provided with information 2356; The base station signal that receives 2358 at time t0 place; The base station signal that receives (t0) power level information 2360; The base station signal that receives 2362 at time t1 place; The base station signal that receives (t1) power level information 2364; Power level change information 2366; Reciprocity signal 2368 that is generated and reciprocity signal transmission power level information 2370.
Uplink bandwidth data/information 2344 comprise one or more groups information of identifying a class frequency (identify first class frequency information 2346 ..., the information 2348 of sign N class frequency).For example; In the different piece of the WAN cellular communication system that uses FDD, adopt different uplink FDD frequency band; And information 2346 sign first uplink band and the first respective tuners settings, and information 2348 sign different uplink frequency bands and different respective tuners settings.For example, the information 2346 that identifies first class frequency comprises the information that identifies one group of continuous OFDM tone, and it is as up link FDD cellular communication bands and be used for peer-to-peer communications.
Comprise the information that is used to characterize and identify this base station broadcast signal with the corresponding format information 2350 of the base station broadcast signal of in uplink bandwidth, broadcasting.For example, in certain embodiments, the specified beacon signal that in uplink bandwidth, is sent by the base station is provided with equal energy on the less OFDM tone sets (for example 1 to 3) of OFDM symbol, and sends this signal with higher relatively power level.For example, format information 2350 comprises the information of sign and the corresponding tone sets of beacon signal.
Round-robin scheduling information 2352 comprises circulation cellular uplink and downlink schedule information and reciprocity round-robin scheduling information.Round-robin scheduling information 2352 comprises the information 2354 of the scheduled time that broadcast the sign base station in uplink bandwidth.For example, information 2354 comprises the information that scan module 2330 should expect to receive from the base station time of broadcast singal that identifies.
Tuner is provided with the information that information 2356 comprises the setting of sign tuner module 2316 and 2320.In certain embodiments; In response to being detected the base station broadcast signal by in the uplink band that scans; Wireless terminal 2300 identification also can be used for the uplink cell frequency band that peer-to-peer communications uses, and with tuner module 2320 be set to tuner module 2316 current identical setting is set.
The time t0 place the base station signal that receives 2358 and time t1 place the base station signal that receives 2362 corresponding with scan module 2330 at the broadcast singal that different time detects.The base station broadcast signal that receives 2358,2362 estimated by the signal estimation module 2332 with power measurement module 2342, wherein power measurement module 2342 obtain respectively the base station signal t that receives (0) power level 2360 with the base station signal t that receives (1) power level 2364.Power level change information 2366 is the output of the base station signal power level tracking module 2334 that receives, and is used as input so that control the transmission power level of reciprocity signal by power control module 2336.
Scan module 2330 scanning uplink bandwidths are to detect from signal of base station.For example, scan module 2330 scanning base station uplink bandwidths for example are used for the FDD frequency band of cellular communication, have the broadcast singal that in uplink bandwidth, is sent by the base station, for example beacon signal so that search for detection.In certain embodiments, do not had the base station broadcast signal if scan module 2330 detects in the uplink bandwidth that scans, then scan module 2330 switches to optional potential uplink band and scans.In various embodiments, detect existence from first broadcast singal of base station after and sending reciprocity signal after, scan module continues to keep watch on the addition of base station signal.
2332 estimations of signal estimation module are from the detection signal of base station.Signal estimation module 2332 comprises transmission mode estimation block 2340 and power measurement module 2342.The transmission mode of transmission mode estimation block 2340 estimation base station signals.For example, transmission mode estimation block 2340 is attempted the information matches of the pattern that is detected with the sign expection signal of being stored, and the pattern that is wherein detected for example has the one group of institute's test tone in the OFDM symbol that receives of relative higher power level.In certain embodiments, pattern comprises the tone sets sequence of variation, and said tone sets sequence is for example jumped according to preassigned pattern in time.Power measurement module 2342 is measured the power level from signal of base station, for example, and the power level from the beacon signal of base station of in uplink band, sending.In certain embodiments, beacon signal is in the OFDM symbol, to comprise the signal that is less than 3 tones.In a plurality of embodiment, wireless terminal continues the additional detected signal of estimation from the base station, for example, measures the power level of additional receiving broadcast signal.
The base station signal power level tracking module that receives 2334 calculate from the variation in the received power level of the broadcast singal that detects of base station.Power control module 2336 is controlled the transmission power level of the reciprocity signal that is sent by wireless terminal 2300 according to the reception base station broadcast signal power measurement information and/or the base station broadcast signal power level change in information that receives.For example, according to the difference between the received power of the base station broadcast signal that detects continuous reception, the reciprocity through-put power of power control module 2336 adjustment.Sometimes, power control module 2336 reduces reciprocity through-put power, and said reducing is the response to the continuous monitoring of base station signal transmission.
Equity signal delivery module 2338 generates reciprocity signal 2368 and controls transmitter module 2304 so that to send this signal based on the power level of reciprocity signal transmission power level 2370.The equity transmission power level is the output of power control module 2336.
Fig. 3 is the flow process Figure 200 that operates the illustrative methods of base station according to a plurality of embodiment.Operate in step 202 place and begin, in step 202, the base station powers on and initialization, and proceeds to step 204.
In step 204, the base station is during very first time section, from the cellular communication apparatus receiving uplink signal that uplink band, sends to said base station.Operation proceeds to step 206 from step 204.
In step 206, sent during second time period base station.Step 206 comprises substep 208 and 210, wherein these substeps can and executed in parallel sometimes.In substep 208, the base station uses second frequency band different with said first frequency band to send at least some said cellular communication apparatus, and said second frequency band is a downlink band.In substep 210, broadcast singal is sent in the base station in said uplink band.In certain embodiments, the broadcast singal that in said uplink band, sends is a beacon signal, for example in the OFDM symbol, comprises the OFDM beacon signal that is less than 3 OFDM tones.In certain embodiments, the broadcast singal that in said uplink band, sends is the power delivery level controling signal.
In certain embodiments; During very first time section; Receive the uplink signal from cellular communication apparatus under the situation of the peer-to-peer communications signal that in existing in uplink band, sends, wherein said peer-to-peer communications signal produces said uplink signal and disturbs.Therefore, uplink band also is used for reciprocity signal transmission simultaneously.
Fig. 4 is the diagrammatic sketch according to the exemplary base 2400 of a plurality of embodiment.For example, exemplary base 2400 is parts of WAN cellular communication system, and uses FDD uplink band and FDD downlink band.Continue this instance, the for example broadcast singal of beacon signal is also sent in base station 2400 in the uplink communication frequency band, to support peer-to-peer communications.In certain embodiments, the predetermined time interval of broadcast singal was sent in base station 2400 in the uplink communication frequency band during, the circulation sequential organization that is realized of base station deliberately ended to transmit from the uplink signal of cellular communication apparatus.In some this embodiment, the time of in uplink band, distributing to base station 2400 broadcast singals is less than or equal to 2% with respect in uplink band, distributing to the ratio of sending out to the time that the uplink radio terminal of this base station cellular signal transmits.In a plurality of embodiment, allow that the uplink communication frequency band is used for reciprocity signal simultaneously and transmit and cellular uplink communication.In some this embodiment, base station 2400 management are from the interference of peer device, and interference management comprises the transmission power level of the broadcast singal that change is sent in the uplink communication frequency band.The peer device of receiving broadcast signal is controlled its transmission power level according to the received power level of the base station broadcast signal in the uplink communication frequency band.
Base station 2400 comprises receiver module 2402, transmitter module 2404, processor 2406, I/O interface 2408 and the memory 2410 that is coupled via bus 2412, and wherein each element can pass through bus 2412 swap datas and information.Memory 2410 comprises routine 2418 and data/information 2420.Processor 2406, CPU for example, executive routine 2418 also uses data/information 2420 in the memory 2410 to control the operation and the implementation method of base station, the for example method of the flow process 200 of Fig. 3.
Receiver module 2402; OFDM receiver for example; Be coupled to reception antenna 2414, wherein base station 2400 during very first time section via the cellular communication apparatus receiving uplink signal of reception antenna 2414 from uplink band, sending to base station 2400.During very first time section, receive uplink signal under the situation of the peer-to-peer communications signal that in existing in uplink band, sends from cellular communication apparatus, wherein said peer-to-peer communications signal produces said uplink signal and disturbs.
Transmitter module 2404; OFDM transmitter for example; Be coupled to transmitting antenna 2416, wherein base station 2400 uses downlink band to send at least some cellular communication apparatus via transmitting antenna 2416, and transmitting antenna 2416 is used for during second time period, sending broadcast singal at said uplink band; Wherein said downlink band is different with said uplink band, and wherein said very first time section and said second time period are not overlapping.For example, the down link signal of sending out to cellular communication apparatus comprises downlink band beacon signal, distributing signal, paging signal and service signal.In certain embodiments, transmitter module 2404 comprises the first transmitter submodule 2405 and the second transmitter submodule 2407.For example, the first transmitter submodule 2405 is used for the down link cellular signal and transmits, and the second transmitter submodule 2407 is used for sending broadcast singal at uplink band, such as beacon signal.
A benefit using first and second transmitter submodules 2405 and 2407 independently to realize is can the first transmitter submodule 2405 be set on down link FDD frequency band, send and do not need compatible UL TDD frequency band, wherein in this UL TDD frequency band, sends the broadcast singal that is used for the equity support.For example, can with receiver module 2402 and the second transmitter submodule 2407 be tuned to identical UL FDD frequency band, and can with first transmitter module 2405 be tuned to DL FDD frequency band, and the down link cellular communication can continue with interrupt mode not.Another benefit of this method is that the base station of existing supporting cellular communication can be suitable for through in the base station, inserting the peer-to-peer communications that the second transmitter submodule 2407 and some software modification supports are utilized same uplink FDD frequency band, and wherein software modification for example is used for changing the up link sequential organization so that end uplink cell communication in interim blink that the uplink band base station signal transmits.
I/O interface 2408 is coupled to other network node with base station 2400, such as other base station, AAA node, home agent node and/or internet.Through backhaul network is coupled in base station 2400, I/O interface 2408 allows cellular communication apparatus to use base station 2400 as its network connection point, so that add and the communication session that uses different base station as another cellular communication apparatus of its network connection point.
Routine 2418 comprises broadcast singal generation module 2424, reciprocity interface management module 2426, cellular downlink module 2428 and the cellular uplink module 2430 of Communications routines 2422, for example beacon signal.The various communication protocols that Communications routines 2422 realizes by base station 2400 uses.Broadcast singal generation module 2424 generates the broadcast singal that is used by cellular communication apparatus and peer communications devices.In certain embodiments, transmit base station identification information by at least a portion in the downlink band broadcast singal (for example downlink band beacon signal) of module 2424 generations, for example sub-district, sector and/or connection point information.In certain embodiments, at least a portion of the uplink band broadcast singal (for example uplink band beacon signal) that is generated by module 2424 is the transmission power level control signal, for example is used to control the signal of the maximum transmission power level of peer device.
In certain embodiments, broadcast singal generation module 2424 comprises the uplink band beacon signal generation module 2432 that is used for generating the beacon signal that will send at uplink band and the downlink band beacon signal generation module 2434 that is used for generating the beacon signal that will send in downlink band.In a plurality of embodiment, uplink band beacon signal generation module 2432 comprises power level module 2436, is used for being provided with according to the information that receives from reciprocity interference management module 2426 transmission power level of the beacon signal of uplink band.In certain embodiments, downlink band beacon signal generation module 2434 comprises Base Station Identification module 2438, is used for base station identification information is merged to the downlink band beacon signal.In certain embodiments; Send with the same transmission power level with the corresponding downlink band beacon signal that generates of base station tie point; And for example as the part of the management that base station receiver 2402 reception cellular communication uplink signals is caused the reciprocity signal of interference transmit, the transmission power level of the uplink band beacon signal that is generated sends with the different capacity level at different time.
Equity interference management module 2426 is managed the reciprocity signal that stands at receiver module 2402 places through following operation and is transmitted level of interference, and wherein said operation comprises the power level that is provided with the broadcast singal of the for example beacon signal of in uplink band, sending.In certain embodiments; Equity interference management module 2426 confirms to be increased in the power level of the broadcast singal that sends in the uplink band when the level of interference that its expectation reduces to transmit from reciprocity signal, and the power level of the broadcast singal that reduces in uplink band, to send during the level of interference of the increase that allows to transmit from reciprocity signal in its expectation.
Generation and transmission to the down link signal 2450 of cellular device are sent out in 2428 controls of cellular downlink module.Cellular uplink module 2430 control is to from the reception of the uplink signal of cellular communication apparatus and to the recovery of the information in these signals, thereby obtains the institute's receiving uplink signal 2448 from cellular device.
Data/information 2420 comprises sequential/frequency structure information 2440, broadcast singal format information 2442, the broadcast singal that will in uplink band, send 2444 that is generated, the broadcast singal that will in downlink band, send 2446 that is generated, from institute's receiving uplink signal 2448 of cellular device and send out down link signal 2450 to cellular device.Sequential/frequency structure information 2440 comprises circulation sequential structural information 2452, uplink band information 2454 and downlink band information 2456.Circulation sequential structural information 2452 comprises the information 2458 that identifies the time interval that is used for uplink signal and identifies the base station is used for the time interval of broadcast singal at uplink band information 2460.For example, identify the information 2458 in the time interval that is used for uplink signal and comprise that the sign turn-on time of information at interval and sign are used for the uplink control signal transmission and uplink traffic signal transmits the information in the time interval of at least one.The sign base station is used for the time interval of broadcast singal in uplink band information 2460 is identified at uplink band and (for example is used for broadcast singal; In the time interval of base station transmits beacon signal), wherein during this time interval, ending conventionally, the line link cellular communication signal transmits.Therefore, the cellular uplink signal of sending out to base station 2400 can not disturb the base station broadcast signal in the uplink band, beacon signal for example, thus help reciprocity Wireless Telecom Equipment to recover broadcast singal.In certain embodiments, distribute the ratio that distributes with the time that cellular uplink signal in the uplink band is transmitted for being less than or equal to 2% to the time of base station broadcast in the uplink band.
Uplink band information 2454 comprise sign by base station 2400 as the information of a class frequency (for example, one group of continuous OFDM tone) of cellular uplink FDD frequency band and with the corresponding carrier wave frequency information of frequency band.Uplink band also is used for as the peer-to-peer communications frequency band, and wherein at least some peer-to-peer communicationss use identical air link resources as uplink cell communication.Broadcast singal is also sent in base station 2400 in the uplink communication frequency band.Downlink band information 2456 comprise sign by base station 2400 as the information of a class frequency (for example, one group of continuous OFDM tone) of cellular downlink FDD frequency band and with the corresponding carrier wave frequency information of frequency band.
Broadcast singal format information 2442, the information of the form of the beacon signal that will in uplink band, send of sign for example comprises that sign for example is used to represent the information of one group of tone of beacon signal, wherein said one group of tone comprises for example 1 to 3 tone.In certain embodiments, come to jump in time according to predetermined jump sequence with the corresponding one group of tone of beacon signal, and this information is also included within the information 2442.
The broadcast singal that generates 2444 that is used for uplink band, for example beacon signal is the output of broadcast singal generation module 2424.For some embodiment, information 2444 is the output of uplink band beacon signal generation module 2432.The broadcast singal that generates 2446 that is used for downlink band, for example beacon signal is the output of broadcast singal generation module 2424.For some embodiment, information 2446 is the output of downlink band beacon signal generation module 2434.
Fig. 5 is a flow chart 700 of operating the illustrative methods of the Wireless Telecom Equipment of supporting that reciprocity signal transmits according to a plurality of embodiment.Operate in step 702 place and begin, in step 702, Wireless Telecom Equipment powers on and initialization, and proceeds to step 704, and Wireless Telecom Equipment receives first signal from the base station in step 704.In certain embodiments, at uplink band reception first signal that is used for sending uplink signal to the base station.In some other embodiment, in as the frequency band of the downlink band of using by said base station, receive first signal, and in another frequency band, send reciprocity signal.In this embodiment, being used for another frequency band that reciprocity signal transmits can be and be the uplink band that is used for sending to the base station uplink signal sometimes.Use uplink band to transmit the benefit that the method from first signal of base station has and be that reciprocity Wireless Telecom Equipment can maintain the same frequency band that is used for reciprocity signal, and still can keep watch on first signal from the base station.This helps the design simplification of reciprocity Wireless Telecom Equipment and/or reduces and realize cost.Yet, owing to send at the frequency band that it is not used for transmitting this moment before the base station, so have the complexity of adding at the place, base station.
Alternatively, for the base station, use the downlink tone of base station to bring the method for transmitting first signal to be more prone to; Yet, because reciprocity Wireless Telecom Equipment need be kept watch on two frequency bands, so complexity that this equipment need add and/or cost for example relate to a plurality of receivers and/or relate to the complexity of switching between frequency band.
Operation proceeds to step 706 from step 704.In step 706, Wireless Telecom Equipment is carried out received signal and is measured, for example signal power measurement.Operation proceeds to one or more in the step 708 and 722.In certain embodiments, Wireless Telecom Equipment supports reciprocity signal to transmit, but does not support to for example transmitting as the uplink signal of the base station of a cellular network part, and in this embodiment, step 722 is not optional.In certain embodiments, Wireless Telecom Equipment is in office to be meant to fix time and supports one of peering pattern and cellular operated pattern, and at fixed time, operation can proceed to one of step 708 and step 722.In certain embodiments, Wireless Telecom Equipment supports concurrent reciprocity signal to transmit and cellular signal transmits, and operation can proceed to step 708 and step 722 from step 706.
Transmit for reciprocity signal, operation proceeds to step 708 from step 706, and for the uplink signal that is dealt into the base station, operation proceeds to step 722 from step 706.In step 708, Wireless Telecom Equipment is controlled the reciprocity through-put power of the reciprocity signal transmission of part at least according to the measurement result of first signal.Step 708 comprises substep 710 and 712.In substep 710; Wireless Telecom Equipment uses first function to confirm to allow the maximum reciprocity transmission power level of transmission; Wherein compare with the second received signal power level that is higher than the first received signal power level, first function is limited to lower level to the first received signal power level with reciprocity through-put power.Then, in substep 712, Wireless Telecom Equipment is confirmed actual reciprocity transmission power level according to the reciprocity transmission power level of determined maximum with from the reciprocity signal that second peer communications devices receives.For example, second peer communications devices is following peer device, and communication equipment and this peer device of wherein carrying out the operation of flow process 700 have the peer-to-peer communications session.Therefore, in certain embodiments, the base station signal that reciprocity transmission power level receives to be received and the influence of reciprocity signal.In certain embodiments, reciprocity signal transmits and/or is used for deriving at least one of following message: reciprocity channel condition information, reciprocity data-rate information, reciprocity data subsequent use (backlog) information, reciprocity deferred message, noise information, error rate information, class of service information and reciprocity power control information.In certain embodiments, the reciprocity through-put power of reality is confined to be equal to or less than predetermined maximum reciprocity transmission power level.In certain embodiments, at least some conditions, for example high-priority users or certain grade of service, actual reciprocity transmission level can exceed sometimes, for example crosses, based on the reciprocity transmission power level of the determined maximum of reception base station signal.Operation proceeds to step 714 from step 708.
In step 714, Wireless Telecom Equipment receives secondary signal locating with the time of the asynchronism(-nization) that receives said first signal from the base station.Then, in step 716, Wireless Telecom Equipment is carried out the secondary signal that is received and is measured, for example the power measurement of the secondary signal that receives.Operation proceeds to step 718 from step 716, in step 718, Wireless Telecom Equipment according to second receive signal measured power confirm that Wireless Telecom Equipment should forbid sending the peer-to-peer communications signal.Operation proceeds to step 720 from step 718.In step 720; Wireless Telecom Equipment forbids sending the peer-to-peer communications signal till basis confirms to allow Wireless Telecom Equipment to send reciprocity signal from the power measurement of another signal of base station after definite communication equipment should forbid sending the peer-to-peer communications signal.
Return step 722, in step 722, Wireless Telecom Equipment controls to the through-put power of signal transmitted than be used for the higher transmission power level of said reciprocity transmission power level of at least some reciprocity signal transmission.Step 722 comprises substep 724.In substep 724; In control during to the through-put power of said base station; Wireless Telecom Equipment uses second function to confirm to send to the through-put power of the said signal of said base station based on the measured power of receive first signal, and wherein said second function is different with said first function.In certain embodiments, reciprocity transmission signal power level is than the low 10dB at least of transmission power level of the said signal that sends to the base station.
Fig. 6 is the diagrammatic sketch of the example wireless communication device 2900 (for example, supporting the wireless terminal such as mobile node of peer-to-peer communications) according to a plurality of embodiment.Exemplary communication device 2900 can and be used the WAN uplink band sometimes, wherein in this WAN uplink band, carries out peer-to-peer communications.Example wireless communication device 2900 is from base station received signal; Wherein, This Wireless Telecom Equipment 2900 uses this signal to determine whether to allow it in the uplink band of base station, to send reciprocity signal and/or confirms reciprocity transmission power level information, for example maximum reciprocity transmission power level.
Wireless Telecom Equipment 2900 comprises receiver module 2902, transmitter module 2904, user I/O equipment 2908, processor 2906 and the memory 2910 that is coupled via bus 2912, and wherein each element can pass through bus 2912 swap datas and information.Memory 2910 comprises routine 2918 and data/information 2920.
Processor 2906, CPU for example, executive routine 2918 also uses data/information 2920 in the memory 2910 to control the operation and the implementation method of Wireless Telecom Equipment 2900.
Receiver module 2902, for example the OFDM receiver is coupled to reception antenna 2914, and wherein from base station received signal, the signal of said reception is used for confirming reciprocity transmission power level information to Wireless Telecom Equipment 2900 via reception antenna 2914.Receiver module 2902 also receives the peer-to-peer communications signal.In certain embodiments; At some time durations, receiver module 2902 is the receiving downlink signal from the base station, for example distributing signal and service signal; Wherein Wireless Telecom Equipment uses this base station as the tie point in the wide area network, and wherein communication equipment 2900 is as cellular communication apparatus.
Transmitter module 2904, for example the OFDM transmitter is coupled to transmitting antenna 2916, and wherein Wireless Telecom Equipment 2900 sends reciprocity signal via transmitting antenna 2916 to other Wireless Telecom Equipment.In certain embodiments, during some time intervals, transmitter module 2904 sends uplink signal to the base station, and wherein Wireless Telecom Equipment is operated in the WAN operator scheme, for example the cellular operated pattern.
For example, user I/O equipment 2908 comprises microphone, keyboard, keypad, mouse, camera, switch, loud speaker, display etc.User I/O equipment 2908 allows the partial function at least of user input data/information, visit dateout/information and the control Wireless Telecom Equipment 2900 of Wireless Telecom Equipment 2900, for example attempts to initiate the peer-to-peer communications session.
Routine 2918 comprises Communications routines 2922 and wireless terminal control routine 2924.The various communication protocols that Communications routines 2922 realizes by Wireless Telecom Equipment 2900 uses.Wireless terminal control routine 2924 comprises measurement module 2926, authorization module 2940, reciprocity transmission control module 2941 and reciprocity through-put power control module 2928.In certain embodiments, for example, not only supporting peer-to-peer communications but also supporting that wireless terminal control routine 2924 comprises wide area network through-put power control module 2936 among the embodiment such as the WAN communication of cellular communication.
2926 pairs of reception signals from the base station of measurement module are carried out and are measured.Signal (2942,2944) expression is to the input of measurement module 2926, and the output of information (2946,2948) expression measurement module 2926.According to a plurality of embodiment, the measurement of measurement module 2926 is signal power measurements.
Authorization module 2940 can and confirm that according to the measurement power of reception base station signal Wireless Telecom Equipment 2900 should forbid sending reciprocity signal sometimes.Authorization module 2940 can and confirm to allow Wireless Telecom Equipment 2900 to send reciprocity signal according to the measurement power of reception base station signal sometimes.Equity transmission licensing status 2950 is the output of authorization module 2940, and is used as input by reciprocity transmission control module 2941.
After definite communication equipment 2900 should be forbidden sending reciprocity signal, reciprocity transmission control module 2941 control transmitting set modules 2904 were to forbid sending the peer-to-peer communications signal, till confirming to allow Wireless Telecom Equipment 2900 to send reciprocity signal.Therefore, used the reciprocity transmission control module 2941 of reciprocity transmission licensing status 2950 to send the enable/disable controller as equity.
Equity through-put power control module 2928 is according to the reciprocity through-put power of at least some reciprocity signal transmission of measurement result control of reception base station signal.Equity through-put power control module 2928 comprises that maximum reciprocity transmission power level confirms that submodule 2930, actual reciprocity transmission power level confirm the submodule 2932 and first function 2934.Equity through-put power control module 2928 is used first function 2934; Wherein compare with the second received signal power level that is higher than the first received signal power level, said first function 2934 is limited to lower level to the first received signal power level with reciprocity through-put power.In a plurality of embodiment, reciprocity through-put power control module 2928 is limited to lower level according to bigger measured received signal power level with reciprocity through-put power.
Maximum reciprocity transmission power level confirms that submodule 2930 uses first function 2934 to confirm maximum reciprocity transmission power level.Actual reciprocity transmission power level confirms that submodule 2932 confirms actual reciprocity signal transmission power level according to the reciprocity transmission power level of said maximum with from the reciprocity signal that second peer communications devices receives.In a plurality of embodiment, the actually determined reciprocity transmission power level of submodule 2932 controls is less than or equal to maximum reciprocity transmission power level.
The through-put power that wide area network through-put power control module 2936 will send to signal of base station controls to than is used for the bigger transmission power level of said reciprocity transmission power level of at least some reciprocity signal transmission.WAN through-put power control module 2936 comprises second function 2938, and they are different with first function 2934.The control that 2936 pairs of wide area network through-put power control modules send to the through-put power of said signal of base station comprises uses second function 2938 different with first function 2934 based on the transmission power level of confirming to send to signal of base station from the measured received power level of signal of base station.
For example, 2926 couples of base station signal N 2944 that receive measure through measurement module, come the metrical information 2948 of picked up signal N, wherein this metrical information 2948 are input to reciprocity through-put power control module 2928 and WAN through-put power control module 2936.Peer modules 2928 is used first function 2934 to handle input 2948 and is obtained the reciprocity transmission power level 2952 of determined maximum; And WAN module 2936 uses second function 2938 to handle identical input 2948 and obtain determined maximum WAN transmission power level 2956, and it is the level higher than the reciprocity transmission power level of determined maximum 2952.
In a plurality of embodiment, reciprocity transmission signal power level is than the low 10dB at least of the transmission power level that sends to signal of base station.For example, for the value of identical measured base station signal, the reciprocity transmission power level 2952 of determined maximum is than determined maximum WAN transmission power level 2956 low 10dB at least.As another instance; In certain embodiments; If wireless terminal is in a certain position and has confirmed reciprocity transmission power level information and WAN transmission power level information based on the identical base station signal measurement result that receives, the reciprocity transmission power level 2954 of then determined reality is than determined actual WAN transmission power level 2958 low 10dB at least.
Data/information 2920 comprise respectively measured and be used to confirm transmission power level information a plurality of received signals from the base station (base station signal that receives 1 2942 ..., the base station signal N2944 that receives), a plurality of corresponding signal measurement information (signal 1 metrical information 2946 ..., signal N metrical information 2948).Data/information 2920 also comprises equity transmission licensing status information 2950, and the current Wireless Telecom Equipment 2900 that whether allows of its indication sends reciprocity signal.Data/information 2920 also comprises: the reciprocity transmission power level 2952 of determined maximum, and it is the output of submodule 2930; And the reciprocity transmission power level 2954 of determined reality, it is the output of submodule 2932.
Comprised that the sequential/frequency structure information 2960 as the part of data/information 2920 comprises: uplink band information 2962, for example WAN uplink bandwidth information, WAN uplink carrier information and up link WAN tone sets information; Downlink band information 2964, for example WAN downlink bandwidth information, WAN downlink carrier information and down link WAN tone sets information; And the information 2966 that identifies the position of measured base station signal.In this exemplary embodiment, the peer-to-peer communications signal transmits and uses the WAN uplink band that is being used by the base station, and wherein reciprocity signal causes interference to sending out to the WAN of this base station uplink signal.Signal to Wireless Telecom Equipment 2900 receives is measured, and utilizes this to measure and control Wireless Telecom Equipment equity transmission power level; In certain embodiments, this signal of transmission in the WAN uplink band, and in other embodiments, this signal of transmission in the WAN downlink band.Which WAN frequency band is information 2966 sign carry this signal, and in certain embodiments, information 2966 signs and the corresponding more specifying informations of this signal, a point in the sequential organization that for example circulates and/or be used for the concrete tone information of id signal.
Support among a plurality of embodiment such as the WAN communication of cellular communications at Wireless Telecom Equipment 2900; Data/information 2920 also comprises determined maximum WAN transmission power level information 2956 and determined actual WAN transmission power level information 2958, and it is the output of WAN through-put power control module 2936.
Fig. 7 is a flow chart 800 of operating the illustrative methods of the Wireless Telecom Equipment of supporting peer-to-peer communications according to a plurality of embodiment, and it comprises the combination of Fig. 7 A and Fig. 7 B.Operate in beginning in the step 802, in step 802, Wireless Telecom Equipment powers on and initialization, and proceeds to step 804, and in step 804, Wireless Telecom Equipment receives first signal from the base station.In certain embodiments, at uplink band reception first signal that is used for sending uplink signal to the base station.In some other embodiment, in as the frequency band of the downlink band of using by said base station, receive first signal, and in another frequency band, send reciprocity signal.In this embodiment, being used for another frequency band that reciprocity signal transmits can be and be the uplink band that is used for sending to the base station uplink signal sometimes.
Operation proceeds to step 806 from step 804.In step 806, Wireless Telecom Equipment is carried out received signal and is measured, for example signal power measurement.Operation proceeds to step 808 from step 806.
In step 808, Wireless Telecom Equipment is confirmed the transmission power level Control Parameter.In one exemplary embodiment, step 808 comprises substep 810 and 812.In a further exemplary embodiment, step 808 comprises substep 814 and 816.In a further exemplary embodiment, step 808 comprises substep 814 and 818.
In substep 810; The wireless communications device accesses memory; This memory comprise stored with the corresponding transmission power level Control Parameter of the different grades of service; Then, in substep 812, Wireless Telecom Equipment obtain stored with corresponding to the corresponding through-put power of the grade of service of said Wireless Telecom Equipment.
In substep 814, Wireless Telecom Equipment recovers controlling value according to said Wireless Telecom Equipment from the signal that said base station receives.In certain embodiments, the signal that therefrom recovers controlling value is first signal that in step 804, receives.Operation proceeds to substep 816 and 818 from substep 814.In substep 816, Wireless Telecom Equipment uses the controlling value of being recovered as the transmission power level Control Parameter.Alternatively, in substep 818, Wireless Telecom Equipment comes computes transmit power level Control Parameter based on the controlling value of being recovered with the corresponding grade of service of wireless terminal.
Operation proceeds to step 820 from step 808.In step 820; Wireless Telecom Equipment is controlled the reciprocity through-put power of at least some equity transmission according to the measurement result of first signal; The control of wherein reciprocity through-put power comprises according to first functions control equity through-put power, and wherein is included in according to first functions control equity through-put power and except the institute's received power level that uses said measurement, also uses said definite transmission power level Control Parameter in said first function.Operation proceeds to step 824 via connected node A 822 from step 820.
In step 824, Wireless Telecom Equipment receives secondary signal locating with the time of the asynchronism(-nization) that receives said first signal from the base station.Then, in step 826, Wireless Telecom Equipment carry out to be measured the reception secondary signal, for example to the power measurement of reception secondary signal.Operation proceeds to step 828 from step 826, in step 828, Wireless Telecom Equipment according to second receive signal measured power confirm that Wireless Telecom Equipment should forbid sending the peer-to-peer communications signal.Operation proceeds to step 830 from step 8288.In step 830; Wireless Telecom Equipment forbids sending the peer-to-peer communications signal till basis confirms to allow Wireless Telecom Equipment to send reciprocity signal from the power measurement of another signal of base station after definite communication equipment should forbid sending the peer-to-peer communications signal.
Fig. 8 is the diagrammatic sketch of the example wireless communication device 3000 (for example, supporting the wireless terminal such as mobile node of peer-to-peer communications) according to a plurality of embodiment.Exemplary communication device 3000 can and be used the WAN uplink band sometimes, wherein in this WAN uplink band, carries out peer-to-peer communications.Example wireless communication device 3000 is from base station received signal; Wherein Wireless Telecom Equipment 3000 utilizes this signal to determine whether to allow this Wireless Telecom Equipment 3000 in the uplink band of base station, to send reciprocity signal and/or confirms reciprocity transmission power level information, for example maximum reciprocity transmission power level.
Wireless Telecom Equipment 3000 comprises receiver module 3002, transmitter module 3004, user I/O equipment 3008, processor 3006 and the memory 3010 that is coupled via bus 3012, and wherein each element can pass through bus 3012 swap datas and information.Memory 3010 comprises routine 3018 and data/information 3020.
Processor 3006, CPU for example, executive routine 3018 also uses data/information 3020 in the memory 3010 to control the operation and the implementation method of Wireless Telecom Equipment 3000, the for example method of the flow chart 800 of Fig. 7.
Receiver module 3002, for example the OFDM receiver is coupled to reception antenna 3014, and wherein Wireless Telecom Equipment 3000 comes from base station received signal via this reception antenna 3014, and the signal of said reception is used for confirming reciprocity transmission power level information.Receiver module 3002 also receives the peer-to-peer communications signal.Transmitter module 3004, for example the OFDM transmitter is coupled to transmitting antenna 3016, and wherein Wireless Telecom Equipment 3000 sends reciprocity signal via this transmitting antenna 3016 to other Wireless Telecom Equipment.
For example, user I/O equipment 3008 comprises microphone, keyboard, keypad, mouse, camera, switch, loud speaker, display etc.User I/O equipment 3008 allows the partial function at least of user input data/information, visit dateout/information and the control Wireless Telecom Equipment 3000 of Wireless Telecom Equipment 3000, for example attempts to initiate the peer-to-peer communications session.
Routine 3018 comprises Communications routines 3022 and wireless terminal control routine 3024.The various communication protocols that Communications routines 3022 realizes by Wireless Telecom Equipment 3000 uses.Wireless terminal control routine 3024 comprises measurement module 3026, power level Control Parameter determination module 3028, grade of service identification module 3034 and reciprocity through-put power control module 3036.
3026 pairs of reception signals from the base station of measurement module are carried out and are measured.The base station signal that receives 13044 expression to the input of measurement module 3026, and the output of signal 1 metrical information 3046 expression measurement modules 3026.According to a plurality of embodiment, the measurement of measurement module 3026 is signal power measurements.
Power level Control Parameter determination module 3028 is confirmed the transmission power level Control Parameter.In certain embodiments, power level Control Parameter determination module 3028 transmission power level Control Parameter are set to the Control Parameter 3048 obtained.In certain embodiments, power level Control Parameter determination module 3028 is confirmed the transmission power level Control Parameter according to the Control Parameter of being obtained 3048.In certain embodiments, power level Control Parameter determination module 3028 transmission power level Control Parameter are set to the Control Parameter recovered, for example decoded Control Parameter 3050.In certain embodiments, power level Control Parameter determination module 3028 is according to the Control Parameter of being recovered, and for example decoded Control Parameter 3050 is confirmed the transmission power level Control Parameter.In certain embodiments, power level Control Parameter determination module 3028 is confirmed the transmission power level Control Parameter according to the grade of service that is identified 3052.In certain embodiments, power level Control Parameter determination module 3028 according to the Control Parameter of being obtained 3048 and the Control Parameter of being recovered of the Control Parameter 3050 of for example having decoded confirm the transmission power level Control Parameter.In certain embodiments, power level Control Parameter determination module 3028 is confirmed the transmission power level Control Parameter through one of following operation: i) use the value of being recovered as the transmission power level Control Parameter; And ii) come the computes transmit power Control Parameter based on the controlling value of being recovered with the corresponding grade of service of wireless terminal.
Grade of service identification module 3034 signs and Wireless Telecom Equipment 3000 corresponding current service grades.For example; In certain embodiments; Some different users of communication equipment 3000 are corresponding to the different grades of service, for example emergency user, the associated user of government, service provider customer, 1 grade of enterprise customer, 2 grades of enterprise customers, 1 grade of personal user, 2 grades of personal users etc.In other instance, the different grades of service can be considered corresponding to different communication device type, the different data type that will transmit, the different pieces of information amount that will transmit and/or different the delay.The current service grade that indication is identified in the grade of service that is identified 3052.
Power level Control Parameter determination module 3028 comprises acquisition module 3030 and Control Parameter recovery module 3032.Acquisition module 3030 obtain stored with corresponding to the corresponding transmission power level Control Parameter of the grade of service of Wireless Telecom Equipment 3000.Therefore, acquisition module 3030 use the grade of service 3052 that identified as input, the access services grade is to power level Control Parameter map information 3060 and obtain and import the Control Parameter that the grade of service is associated.The Control Parameter of being obtained 3048 is the output of acquisition module 3030.
Control Parameter is recovered module 3032 and is recovered controlling value according to the signal that communication equipment 3000 receives from the base station.In certain embodiments, recover controlling value, the base station signal 13044 that wherein said signal is for example received according to the same signal of measuring by measurement module 3026.The Control Parameter of having decoded 3050 is the output that Control Parameter is recovered module 3032.In certain embodiments, the controlling value of being recovered is the level of interference indicator value.
Equity through-put power control module 3036 is according to the reciprocity through-put power of at least some reciprocity signal transmission of measurement result control of reception base station signal.Equity through-put power control module 3036 comprises that maximum reciprocity transmission power level confirms that submodule 3038, actual reciprocity transmission power level confirm the submodule 3040 and first function 3042.
Maximum reciprocity transmission power level confirms that submodule 3038 uses first function 3042 to confirm maximum reciprocity transmission power level.Actual reciprocity transmission power level confirms that submodule 3040 confirms actual reciprocity signal transmission power level according to the reciprocity transmission power level of said maximum with from the reciprocity signal that second peer communications devices receives.In a plurality of embodiment, the actually determined reciprocity transmission power level of submodule 3040 controls is less than or equal to maximum reciprocity transmission power level.
Except using the measured received power level; For example confirm reciprocity transmission power level according to signal 1 metrical information 3046, reciprocity transmission power level control module 3036 also uses determined transmission power level Control Parameter 3054 for example to confirm the reciprocity transmission power level 3056 of determined maximum.In certain embodiments, the part or all of function with power level Control Parameter determination module 3028 comprises the part as reciprocity through-put power control module 3036.
Data/information 3020 comprises the received signal from the base station, and the base station signal of promptly being measured by measurement module 3026 that receives 1 3044 is so that obtain to be used for confirming signal 1 metrical information 3046 of transmission power level information.Data/information 3020 comprises that also the reciprocity transmission power level of the reciprocity transmission power level of transmission power level Control Parameter 3054, determined maximum 3056, determined reality 3058, the grade of service are to power level Control Parameter map information 3060 and time sequence frequency structural information 3070.In certain embodiments, data/information 3020 comprise institute's identification service grade 3052, one or more in the Control Parameter of obtaining 3048 and the Control Parameter 3050 of having decoded.
The Control Parameter of obtaining 3048 be acquisition module 3030 output and with the grade of service to the control parameter value of power contorl parameters map information 3060 (control parameter value 1 3066 ..., control parameter value M 3068) one of corresponding.The Control Parameter of having decoded 3050 is that Control Parameter is recovered the output of module 3032 and the information that expression is recovered according to the reception base station signal.In certain embodiments, the base station signal that receives of recovering information institute basis is the same base signal that carries out power measurement, for example the base station signal that receives 13044.In certain embodiments, recovering controlling value is the level of interference indicator value.
Institute's identification service grade 3052 is the output of grade of service identification module 3034, and is used for as the input to acquisition module 3030.Use institute's identification service grade 3052 to select the control corresponding parameter value.For example, if institute's identification service grade 3052 indication grade of service M 3064, then acquisition module 3030 obtains the control parameter value M 3068 of storage in obtaining Control Parameter 3048.
Transmission power level Control Parameter 3054 is the output of power level Control Parameter determination module 3028.According to institute's identification service grade 3052, one or more in the Control Parameter of obtaining 3048 and the Control Parameter 3050 of having decoded confirm transmission power level Control Parameter 3054.Equity through-put power control module 3036 uses transmission power level Control Parameter 3054 as input.
The output that the reciprocity transmission power level 3056 of determined maximum is maximum reciprocity transmission power level submodules 3038, and the reciprocity transmission power level 3058 of determined reality is the output that actual reciprocity transmission power level is confirmed submodule 3040.
The grade of service to power level Control Parameter map information 3060 comprise a plurality of grades of service (grade of service 1 3062 ..., grade of service M 3064) and a plurality of control corresponding parameter value (control parameter value 1 3066 ..., control parameter value M 3068).
Comprised that the sequential/frequency structure information 3070 as the part of data/information 3020 comprises: uplink band information 3072, for example WAN uplink bandwidth information, WAN uplink carrier information and up link WAN tone sets information; Downlink band information 3074, for example WAN downlink bandwidth information, WAN downlink carrier information and down link WAN tone sets information; And the information 3076 that identifies the position of measured/decoded base station signal.In this exemplary embodiment, the peer-to-peer communications signal transmits and uses the WAN uplink band that is being used by the base station, and wherein reciprocity signal causes interference to sending out to the WAN of this base station uplink signal.Signal to Wireless Telecom Equipment 3000 receives is measured, and utilizes this to measure and control Wireless Telecom Equipment equity transmission power level.In certain embodiments, the transmission base station signal that receives in the WAN uplink band, and in other embodiments, this signal of transmission in the WAN downlink band.In certain embodiments, the signal and the decoded recovering information (for example being used for recovering to disturb indicator value) that are received by Wireless Telecom Equipment 3000 also are used to control Wireless Telecom Equipment equity transmission power level.In certain embodiments, the same base signal that is used for power measurement is a decoded signal, wherein according to this decoded signal come recovering information.During other is implemented at some, have two different reception signals from the base station, the received power level of a signal is measured and be utilized, and another signal transmits decoded power control information, for example decoded interference indicator value.In certain embodiments, in the WAN uplink band, transmit base station signal, wherein recover the for example information of level of interference indicator value according to this base station signal, and in other embodiments, this signal of transmission in the WAN downlink band.Information 3076 which WAN frequency band of sign carry measured base station signal and which WAN frequency band carries the base station signal that is used for the information recovery.In certain embodiments, information 3076 sign and the corresponding more specifying informations of one or more signals, a point in the sequential organization that for example circulates and/or be used to identify the concrete tone information of these one or more signals.
Fig. 9 shows the diagrammatic sketch 300 of an exemplary embodiment, and it comprises communication system 302, describes the form 306 that frequency band uses the form 304 of information and exemplary reciprocity wireless terminal transmission power level information is shown.Example communication system 302 comprises base station 308, and it has the corresponding cellular coverage through sub-district 310 expressions.Other network node and/or internet are coupled to via the network link 309 of for example optical fiber link in base station 308, wherein for example other base station, router, AAA node, home agent node, Control Node etc. of other network node.In communication system 302, also have a plurality of supporting cellular wireless terminal in communication (WT 1 312 ..., WTN 314).Honeycomb WT (312,314) is coupled to base station 308 via the wireless road (316,318) that connects respectively.
The wireless terminal (WT 1`, WT 2`328, WT 3`, WT 4`340) that in communication system 302, also has a plurality of support peer-to-peer communicationss.WT 1` is illustrated in two time point places, and is expressed as unit 324 and is expressed as unit 326 at time t1 at time t0.Indicate WT 1` to move by arrow 334.WT 3` is illustrated in two time point places, and is expressed as unit 336 and is expressed as unit 338 at time t1 at time t0.Indicate WT 3` to move by arrow 346.Indicate the peer-to-peer communications between WT 1` and the WT 2`328 through arrow 330 and 332.Indicate the peer-to-peer communications between WT 3` and the WT 4`340 through arrow 342 and 344.
Beacon signal 320 is sent in the base station in uplink band.The equity wireless terminal detects and measures beacon signal.The equity wireless terminal uses the power measurement of the beacon signal that receives to determine whether to allow this wireless terminal to send reciprocity signal, and when allowing to send, uses this power measurement to come the control transmission power level, for example the maximum transmission power level.The exemplary reciprocity restricted area of dashed circle 322 indications around the base station 308 forbids that in this zone reciprocity wireless terminal sends signal.In zone near base station 308; For attempt to from the wireless terminal that is operated in honeycomb mode (312 ..., 314) the uplink signal base station of recovering and decoding; Transmission from the grade of utilizing in the reciprocity signal transmission of being in of reciprocity wireless terminal can produce excessive interference, does not therefore allow reciprocity wireless terminal transmission.
Now band information form 304 will be described.First row 348 indication service band A are as the cellular downlink frequency band of the signal that is used for sending from the base station and is intended to received by cellular radio terminals.Secondary series 350 indication service band B conducts: (i) be used for sending and the cellular uplink frequency band of the signal that is intended to receive by the base station from cellular radio terminals; (ii) be used to transmit send from the base station and be intended to and receive and the frequency band of the reciprocity beacon signal used by reciprocity wireless terminal; And (iii) be used for sending and the peer of the signal that is intended to receive by reciprocity wireless terminal from reciprocity wireless terminal.
Reciprocity wireless terminal power information form 306 will be described now.The exemplary reciprocity wireless terminal (WT 1`, WT 2`, WT 3`, WT 4`) that first row, 352 signs are being described.Secondary series 354 identified time point, t0 or t1.The 3rd row 356 sign with corresponding to the corresponding transmission control level of the wireless terminal in the same lines of indicated time in same lines information.The transmission power level of the information indication WT1` of form 306 is along with increasing from time t0 to time t1.Can observe, move away base station 308, and for WT 1`, can expect that at this time durations the measured power level of beacon signal 320 can reduce at this time durations WT 1`.Can also observe, at this time durations, WT 1` remains on beyond the restricted area 322.The information of form 306 also indicates the transmission power level of WT 3` along with reducing from time t1 to time t0.Can observe, move to base station 308 directions, and for WT 3`, can expect that at this time durations the measured power level of beacon signal 320 can increase at this time durations WT 3`.Can also observe, at this time durations, WT 3` remains on beyond the restricted area 322.The power level of in form 306, describing can be the maximum transmission power level that allows.Alternatively, the power level of in form 306, describing can be the actual transmission power level.
In certain embodiments, at least some wireless terminals are supported a plurality of operator schemes, for example equity and cellular communication operator scheme.
Figure 10 is the diagrammatic sketch according to the example wireless communications 400 of a plurality of embodiment.Example wireless communications 400 comprise at least one base station 402, support a plurality of wireless terminals of peer-to-peer communications (wireless terminal 1404 ..., wireless terminal N 410), support a plurality of wireless terminals that the wide area network signal transmits (wireless terminal 2406 ..., wireless terminal n 412) and a plurality of wireless terminals of not only having supported reciprocity signal to transmit but also support the wide area network signal to transmit (wireless terminal 3408 ..., wireless terminal M 414).
Base station 402 comprises reciprocity interference management module 416, interference signal measurement module 418 and transmitter module 420.Equity interference management module 416 is confirmed reciprocity transmission power level controlling value.Transmitter module 420 sends determined reciprocity transmission power level controlling value, for example as the indicator value of being transmitted.Interference signal measurement module 418 is measure signal interference during empty (null) uplink transmission time section, and measured signal interfere information is offered reciprocity interference management module 416.
Wireless terminal 1 404 comprises received signal power measurement module 422, reciprocity signal transmission power control module 424, difference update module 426 and memory 428.In certain embodiments, memory 428 comprises the predetermined difference indicator information 430 of being stored.The predetermined difference indicator information 430 of being stored comprise a plurality of designators that can send by the base station (designator 1 442 ..., designator N 444), and corresponding respectively difference value (difference 1446 ..., difference N 448).
Received signal power measurement module 422 is measured the power of the signal that (for example, the base station 402) receive from the base station.Equity signal transmission power control module 424 is according to first function, based on controlling reciprocity signal transmission power level from the measured power of signal of base station.In a plurality of embodiment, reciprocity signal transmission power level is the maximum reciprocity signal transmission power level that allows.(for example, base station 402) receives the difference indicator value to difference update module 426 from the base station, and upgrades first function based on the indicator value that is received.In certain embodiments, this difference is scheduled volume, and the memory 428 of storage indicator and corresponding predetermined difference is conducted interviews and uses the value of being visited by first function.
Wireless terminal 2406 comprises received signal power measurement module 432 and wide area network signal transmission power control module 434.Received signal power measurement module 432 is measured the power level of the signal that (for example, the base station 402) receive from the base station.Wide area network signal transmission power control module 434 is according to second function, controls the wide area signal transmission power level relevant with wireless terminal 2406 based on the measured power of the signal that receives from the base station, and wherein second function is different with first function.In certain embodiments, wide area signal transmission power level is maximum wide area signal transmission power level.In a plurality of embodiment, for the designated value of measured received signal power, compare first function, second function is confirmed higher transmission power level.In some this embodiment, for the designated value of measured received signal power, between the through-put power of being confirmed by first and second functions is that the difference of unit is 10dB at least with dB.
Wireless terminal 3408 comprises received signal power measurement module 436, reciprocity signal transmission power control module 438 and wide area network signal transmission power control module 440.Received signal power measurement module 436 is measured the power level of the signal that receives from the base station.Equity signal transmission power control module 438 is according to first function, based on controlling reciprocity signal transmission power level from the measured power of signal of base station.Wide area network signal transmission power control module 440 is according to second function, and based on controlling wide area signal transmission power level from the measured power of signal of base station, wherein second function is different with first function.In a plurality of embodiment, for the definite value of retouching of measured received signal power, compare first function that uses by module 438, confirm higher transmission power level by second function that module 440 is used.In some this embodiment, for the designated value of measured received signal power, between the through-put power of being confirmed by first and second functions is that the difference of unit is 10dB at least with dB.In certain embodiments, first function that is used by the module 438 of WT 3 408 is identical with first function that is used by the module 424 of WT1 404.In certain embodiments, second function that is used by the module 440 of WT 3 408 is identical with second function that is used by the module 434 of WT 2 406.
Figure 11 is a flow chart 500 of operating the illustrative methods of base station according to a plurality of embodiment.The operating in the step 502 beginning and proceed to step 504 of this illustrative methods.In step 504, base station stored interference budget information.Operation proceeds to step 506 and step 508 from step 504.
In step 508, wherein this step is carried out carrying out on (ongoing) basis, to the base station operate with keep with at least one adjacent base station synchronously, thereby keep up link empty slot between the adjacent base station synchronously.In a plurality of embodiment, the up link empty slot is the following time period, and at least a portion of the uplink bandwidth that in this time period, will do not used by the base station wittingly is used for sending uplink signal to this base station.
Return step 506, in step 506, ambient interferences is measured in the base station during the up link empty slot.Then, in step 510, the first uplink transmission power controlling value is confirmed according to measured ambient interferences in the base station.Step 510 comprises substep 512.In substep 512, the base station is used the interference budget information of being stored and is combined said measured ambient interferences to generate the first uplink transmission power controlling value.Substep 512 comprises substep 514,516,518 and 520.In substep 514, the base station confirms whether measured ambient interferences surpasses the interference budget limit by the interference budget information indication of being stored.If surpassed budget limitation, then operate from substep 514 and proceed to substep 516; Otherwise operation proceeds to substep 518 from substep 514.
In substep 516, previous uplink transmission power controlling value is revised in the base station, and the through-put power controlling value of said modification limits reciprocity transmission power level greater than previous uplink transmission power controlling value.Return substep 518, in substep 518, the base station confirms whether measured ambient interferences is lower than the said interference budget limit by the interference budget information indication of being stored, for example low predetermined threshold at least.If confirm that in substep 518 measured ambient interferences is lower than the interference budget limit, make to satisfy examination criteria, then operate from substep 518 and proceed to substep 520.In substep 520, previous uplink transmission power controlling value is revised in the base station, and the through-put power controlling value of said modification is increased to than the higher level of level by previous through-put power controlling value control reciprocity transmission power level.
Operation proceeds to step 522 from step 510, and in step 522, the said determined first uplink transmission power controlling value is sent in the base station.
Figure 12 is a flow chart 600 of operating the illustrative methods of base station according to a plurality of embodiment.The operating in the step 602 beginning and proceed to step 604 of this illustrative methods.In step 604, base station stored interference budget information.Operation proceeds to step 606 and step 608 from step 604.
In step 608, wherein this step carries out carrying out on the basis, to the base station operate with keep with at least one adjacent base station synchronously so that keep up link empty slot between the adjacent base station synchronously.In a plurality of embodiment, the up link empty slot is the following time period, and at least a portion of the uplink bandwidth that in this time period, will do not used by the base station wittingly is used for sending uplink signal to this base station.
Return step 606, in step 606, ambient interferences is measured in the base station during the first up link empty slot.Then, in step 610, the first uplink transmission power controlling value is confirmed according to measured ambient interferences in the base station.Operation proceeds to step 612 from step 610.In step 612, the said determined first uplink transmission power controlling value is sent in the base station.Operation proceeds to step 614 from step 612.
In step 614; Ambient interferences is measured in the base station during the second up link empty slot; In step 616, the base station basis is confirmed the variation in the measured ambient interferences with the first up link empty slot and the corresponding measurement result of the second up link empty slot then.Operation proceeds to step 618 from step 616.
In step 618; In base station basis and corresponding measured ambient interferences of the second up link empty slot and the measured ambient interferences confirm to change and confirm the second uplink transmission power controlling value; In step 620, the determined second uplink transmission power controlling value is sent in the base station then.Operation proceeds to step 622 from step 620.
In step 622; Ambient interferences is measured in the base station during the 3rd up link empty slot; And in step 624, the base station basis is confirmed the variation in the measured ambient interferences with the second up link empty slot and the corresponding measurement result of the 3rd up link empty slot.Operation proceeds to step 626 from step 624, and in step 626, the difference between the first uplink transmission power controlling value and the second uplink transmission power controlling value is confirmed in the base station.Operation proceeds to step 628 from step 626.
In step 628; Difference between variation in base station basis and the corresponding measured ambient interferences of the 3rd up link empty slot, the determined ambient interferences measured between the second and the 3rd up link empty slot and determined two the previous power control values that send is confirmed the 3rd uplink transmission power controlling value.Operation proceeds to step 630 from step 628, and in step 630, determined the 3rd uplink transmission power controlling value is sent in the base station.
Figure 13 is the diagrammatic sketch according to the exemplary base 2800 of a plurality of embodiment.Exemplary base 2800 management are disturbed from the reception of reciprocity wireless terminal, wherein should send in the identical air link resources of the wide area network uplink communication that is used for base station 2800 by the equity wireless terminal.Exemplary base 2800 is confirmed the concurrent uplink power control signal of serving, and wherein this signal is used for confirming its transmission power level by reciprocity wireless terminal.In certain embodiments, the up-link power control signal of being sent by base station 2800 also is used for the control transmission power level by wireless terminal, and wherein this wireless terminal uses this base station to send uplink signal as network connection point and to this base station.
Exemplary base 2800 comprises receiver module 2802, transmitter module 2804, processor 2806, I/O interface 2808 and the memory 2810 that is coupled via bus 2812, and wherein each element can pass through bus 2812 swap datas and information.
Receiver module 2802; OFDM receiver for example; Be coupled to reception antenna 2814, wherein from wireless terminal receiving uplink signal, wherein this wireless terminal for example is operated in honeycomb mode and uses the wireless terminal of base station 2800 as network connection point via this reception antenna 2814 in base station 2800.Receiver module 2802 also receives the interference from the peer communications devices that is operated in local near zone.In certain embodiments, receiver module 2802 also receives from the interference in the uplink signal transmission of the cellular device in the neighbor cell.
Transmitter module 2804, for example the OFDM transmitter is coupled to transmitting antenna 2816, and wherein base station 2800 is sent down link signal via this transmitting antenna 2816 to the wireless terminal that uses base station 2800 as network connection point.Transmitter module 2804 also sends uplink transmission power controlling value signal; Wherein this signal is used to control its transmission power level by reciprocity wireless terminal; This equity wireless terminal is used for reciprocity signal transmission with the uplink band of base station, and therefore base station receiver module 2802 is produced interference.
Memory 2810 comprises routine 2818 and data/information 2820.Processor 2806, CPU for example, executive routine 2818 also uses data/information 2820 in the memory 2810 to control the operation and the implementation method of base station 2800.Routine 2818 comprises Communications routines 2822, interference measurement module 2824, wireless terminal power control module 2826 and wireless terminal power control signal transport module 2830.In certain embodiments, routine 2818 comprises one or more in wide area network synchronization module 2828 and the interference type separation module 2832.
The various communication protocols that Communications routines 2822 realizes by base station 2800 uses.Interference measurement module 2824 is measured ambient interferences during the up link empty slot.Wireless terminal power control module 2826 is confirmed the uplink transmission power controlling value according to measured ambient interferences.In a plurality of embodiment, wireless terminal power control module 2826 is used the interference budget information of being stored and is combined measured ambient interferences to confirm the up-link power controlling value, so that generate the uplink transmission power controlling value.Wireless terminal power control signal transmission control module 2830 controls transmitter module 2804 to send the uplink transmission power control signal that is generated, the for example first uplink transmission power controlling value 2850.In certain embodiments, control module 2830 controls transmitter module 2804 so that send the uplink transmission power controlling value that is generated according to round-robin scheduling.In certain embodiments, control module 2830 is come control transmission according to level of interference information.In certain embodiments, wireless terminal power control module 2826 is compared previous measured change according to measured ambient interferences and is confirmed the uplink transmission power controlling value with measured ambient interferences.In certain embodiments, wireless terminal power control module 2826 is confirmed the uplink transmission power controlling value according to the difference between two previous power control values that send.
In certain embodiments; Wireless terminal power control module 2826 is confirmed the uplink transmission power controlling value through following operation; This operation comprises revises previous uplink transmission power controlling value when measured ambient interferences surpasses the interference budget limit of being indicated by the interference budget information of being stored, the through-put power controlling value of said modification limits reciprocity transmission power level greater than previous uplink transmission power controlling value.In certain embodiments; Wireless terminal power control module 2826 is confirmed the uplink transmission power controlling value through following operation; This operation comprises revises previous uplink transmission power controlling value when measured ambient interferences is lower than the interference budget limit of being indicated by the interference budget information of being stored, the through-put power controlling value of said modification increases reciprocity transmission power level so that it is greater than previous uplink transmission power controlling value.In a plurality of embodiment, when the low predetermined threshold at least of the said interference budget limit of said measured interference ratio, carry out variation to higher level.
Therefore, base station 2800 uses the numerical value of uplink transmission power controlling value to regulate the transmission power level of peer-to-peer communications, thereby suppresses sending out the interference to the uplink signal of base station 2800.
Wide area network synchronization module 2828 be used to keep with at least one adjacent base station synchronously so that keep up link empty slot between the adjacent base station synchronously.
Interference type separation module 2832 is used to obtain the estimation to the uplink channel interference contribution amount that is derived from peer-to-peer communications.In certain embodiments; As equity being disturbed a part of separating from other interference source (for example with the synchronous neighbor cell in base station 2800 not sending the cellular communication apparatus of uplink signal), interference type separation module 2832 is imported the variation level controlled and the institute observation effect of calculating in interferometry during the subsequent uplink empty slot wittingly in the uplink transmission power controlling value.
Data/information 2820 comprise sequential/frequency structure information 2834, the interference budget information 2840 of being stored, a plurality of interferometry information set (uplink interference measurements information 1 2846 ..., uplink interference measurements information N 2848) and a plurality of uplink transmission power controlling value that generates (the first uplink transmission power controlling value 2850 ...., M uplink transmission power controlling value 2852).
Sequential/frequency structure information 2834 comprises circulation sequential structural information 2836.Circulation sequential structural information 2836 comprises the information 2838 of sign up link empty slot.In certain embodiments, the up link empty slot is corresponding to the following time period, and at least a portion of the uplink bandwidth that in this time period, will do not used by said base station wittingly is used for sending uplink signal to this base station.In certain embodiments, the up link empty slot is the following time period, during this time period, uses the wireless terminal of base station 2800 tie points, and for example cellular communication apparatus is forbidden sending uplink signal to this base station 2800 wittingly.During this time period, reciprocity wireless terminal signal transmits and continues to use uplink band.Therefore, ambient interferences can be measured in base station 2800 during this time period.If adjacent base station is synchronous, thereby make that the up link empty slot is concurrent, then measured noise can transmit relevant with reciprocity signal during these time periods.Yet, if adjacent base station is not synchronous, and use identical uplink band, measured interference comprises the interference from reciprocity wireless terminal and the cellular communication apparatus corresponding with adjacent base station during this up link empty slot.
The interference budget information 2840 of being stored comprises ambient interferences prescribed information 2842 and threshold information 2844.
Figure 14 comprises that according to a plurality of embodiment example communication system 902 and frequency band use the diagrammatic sketch 900 of form 904.In example communication system 902, wide area network and peer-to-peer communications shared bandwidth.In a plurality of embodiment, wide area network is corresponding to the system that is disposed, and peer capabilities comprises expansion and/or upgrade feature.In certain embodiments, example communication system 902 initial deployment are for comprising WAN and peer capabilities.Frequency band use form 904 indications can with example system 902 corresponding two kinds of embodiment types.In the first embodiment type, i.e. type A embodiment, wide area network use FDD (FDD) and wide area fdd uplink frequency band and peer-to-peer communications activity shared bandwidth.In the second embodiment type, i.e. type B embodiment, wide area network uses the time division duplex (TDD) of same frequency band and wide area frequency band and the movable shared uplink time slot of peer-to-peer communications for up link and down link.Therefore; In these two kinds of embodiment types; Uplink signal from wan communication equipment transmits and possibly disturb the peer-to-peer communications signal reception generation of peer communications devices, and the peer-to-peer communications signal between the peer communications devices possibly receive the generation interference to the wide area network uplink signal at the place, base station.
Example communication system 902 comprises base station 906, wide area network wireless terminal 908 (for example honeycomb mobile node), the first reciprocity wireless terminal 910 and the second reciprocity wireless terminal 912.For ease of explanation, suppose that wide area network wireless terminal 908 sends uplink signal 914 to base station 906.Base station 906 receives this signal and measures received signal P C1For reciprocity wireless terminal 2 912, signal 914 is regarded as the interference 916 from wide area network wireless terminal 908.The hypothesis first reciprocity wireless terminal 910 sends reciprocity signal 918 to reciprocity wireless terminal 2 912 now.As far as base station 906, signal 918 is regarded as the interference 920 from the first reciprocity wireless terminal 910.Base station 906 receives should disturb and measure received signal P P1
According to a plurality of embodiment, wide area system is provided priority, and disturb in the management of place, base station.For example, select power control value α to reach such as (P P1/ P C1The purpose of)≤α.In some this embodiment, α be such as-10dB ,-20dB or-the such value of 30dB.Although be described in the instance of a reciprocity wireless terminal; Wherein should the equity wireless terminal pair transmitting corresponding base station with a wide area network wireless terminal uplink signal receives and causes interference; But it should be noted that; Can and exist a plurality of reciprocity wireless terminals to send and produce interference sometimes, and can and exist a plurality of wide area network wireless terminals to send uplink signal to the base station sometimes, wherein this uplink signal is attempted to recover in this base station.Therefore, the control factor α that the base station is confirmed is used to manage interference can and depend on a plurality of users sometimes.In certain embodiments, control factor α depends on number of users, for example movable wan user's number and/or movable peer users number.
Figure 15 shows the diagrammatic sketch 1002 of the characteristic of a plurality of embodiment, and wide area network has the dead time section in these embodiment, and reciprocity noise is kept watch on and measure in the base station in this dead time section.Exemplary diagram 1002 comprises base station 1004, and it has corresponding cellular coverage 1006.In certain embodiments, this cellular coverage has at least 1 kilometer radius.In this sub-district, a plurality of wireless terminals (WT A 1008, WT B 1010, WT C 1012, WT D1014) that are operated in the cellular operated pattern are arranged.These wireless terminals (1008,1010,1012,1014) are 1004 receiving downlink signals and send uplink signals to base station 1004 from the base station.Yet this time point is corresponding to the wide area network up link dead time section of having a mind to, and wide area network wireless terminal in this time period (1008,1010,1012,1014) does not send any uplink signal.
Sub-district 1006 also comprises a plurality of wireless terminals (WT 1 1016, WT 2 1018, WT 3 1020, WT 4 1022) that are operated in the peering pattern.During this time period, do not limit peer-to-peer communications.Equity WT 11016 is just in time sending reciprocity signal 1024 to reciprocity wireless terminal 21018.As far as the receiver in the base station 1004, the reciprocity signal 1024 that this sent is regarded as reciprocity noise interferences 1026.Equity WT 3 1020 is just in time sending reciprocity signal 1028 to reciprocity wireless terminal 4 1022.As far as the receiver in the base station 1004, the reciprocity signal 1028 that this sent is regarded as reciprocity noise interferences 1030.
Figure 16 shows the diagrammatic sketch 1102 of the certain characteristics of a plurality of embodiment, and it is the continuity of the instance of Figure 15.Power control value α is disturbed to confirm according to measured equity in base station 1004.Then, this controlling value α are broadcasted to be used for wireless terminal via signal 1104 in the base station.In this exemplary embodiment, the single value of base station broadcast controlling value α; Then, this value can and be used by the different wireless communication equipment of receiving broadcast signal 1104 is next sometimes differently.In this example, the wireless terminal collection (WT A 1008, WT B 1010, WT C 1012, WT D 1014) that is operated in honeycomb mode uses the first power control function f 1(α) 1106 confirm the transmission power level Control Parameter; And the wireless terminal collection (WT 1 1016, WT 2 1018, WT 3 1020, WT 4 1022) that is operated in ad-hoc mode uses the second power control function f 2(α) 1108 confirm the through-put power Control Parameter.
Figure 17 is the diagrammatic sketch 1200 of the exemplary look-up table of controlling value, and it shows the characteristic of a plurality of embodiment.In certain embodiments, wireless terminal receives the broadcasting power controlling value from the base station, and confirms the power control value that it will use oneself according to the value that is received and the corresponding grade of service.The different grades of service can and sometimes corresponding to the different user of the dissimilar of different service types, service and/or service, and be mapped to the different grades of service.For example, in certain embodiments, exemplary different priorities is relevant with different service types, and these different service types are voice, delay-sensitive data and the transport-type data of doing the best for example.For example, exemplary different COSs comprise urgency communication service and common communications.For example, different user types comprises: high-priority users, such as robber and police, fire alarm, emergency services; The medium priority user of customized high grade of service planning; And the low priority user of customized low grade of service planning.Therefore, in certain embodiments, revise the power control value that is recovered according to priority level.
In example table 1200, the exemplary controlling value α that receives of first row, 1202 indications, the exemplary respective service grade 1 controlling value α of secondary series 1204 indications 1, the exemplary respective service grade 2 controlling value α of the 3rd row 1206 indications 2, and the exemplary respective service grade 3 controlling value α of the 4th row 1208 indications 3If it is (grade of service 1, the grade of service 2, the grade of service 3) for-10dB and its corresponding grade of service that broadcasting power controlling value that the wireless terminal of look-up tables 1200 receives from the base station is used in the indication of first row 1210, then this wireless terminal respectively will (10dB ,-15dB ,-20dB) be used for its power control value.If it is (grade of service 1, the grade of service 2, the grade of service 3) for-20dB and its corresponding grade of service that broadcasting power controlling value that the wireless terminal of look-up tables 1200 receives from the base station is used in the indication of second row 1212, then this wireless terminal respectively will (20dB ,-25dB ,-30dB) be used for its power control value.If it is (grade of service 1, the grade of service 2, the grade of service 3) for-30dB and its corresponding grade of service that broadcasting power controlling value that the wireless terminal of look-up tables 1200 receives from the base station is used in the third line 1214 indication, then this wireless terminal respectively will (30dB ,-35dB ,-40dB) be used for its power control value.
Figure 18 is a flow chart 1300 of operating the illustrative methods of base station (for example, its uplink bandwidth also is used for the base station that reciprocity signal transmits) according to a plurality of embodiment.For example, this base station is the base station of operating as the part of cellular communication system, wherein in this cellular communication system, makes to operate between the adjacent base station synchronously.Helping synchronously between the adjacent base station, realized unified up link empty slot, in this time period, can control the transmission of wide area network wireless terminal cellular uplink signal and stop uniformly.These empty slots are used to measure ambient interferences.In this embodiment, can come approximate representation ambient interferences W by W=thermal noise+reciprocity noise.Interference need be controlled in the base station, and confirms and broadcasting power control factor α, so that received by near the wireless terminal it.
Operate in beginning in the step 1302, in step 1302, the base station powers on and initialization.In certain embodiments, initialization comprises the default value that uses the power control factor α that is broadcast to wireless terminal.Operation proceeds to step 1304 from beginning step 1302.In step 1304, ambient interferences W is measured in the base station during the empty time interval, and its hollow time interval is the uplink null time interval for example, in this time interval, the WAN wireless terminal is controlled with inhibit signal and transmits.
Operation proceeds to step 1306 from step 1304.In step 1306, power control factor α is confirmed according to measured ambient interferences in the base station.In a plurality of embodiment, employed function makes that for the non-NULL of the part at least scope of W, α also increases along with W increases.In certain embodiments, step 1306 confirms to comprise with the interference budget information of being stored and compares.Operation proceeds to step 1308 from step 1306.
In step 1308, the determined power control of base station broadcast factor α.Operation proceeds to step 1304 from step 1308, in step 1304, carries out another ambient interferences and measures.
In certain embodiments, carry out and use a plurality of ambient interferences measurements accordingly, control factor with the definite power of institute that generation is broadcasted with a plurality of empty time intervals.Therefore, in certain embodiments, before the determined power control of the broadcasting factor, the base station is carried out with one group of corresponding one group of background of the empty time interval and is measured the for example repeatedly repetition of step 1304 in step 1308.
Figure 19 is a flow chart 1400 of operating the illustrative methods of base station (for example, its uplink bandwidth also is used for the base station that reciprocity signal transmits) according to a plurality of embodiment.For example, this base station is the base station of operating as the part of cellular communication system, wherein in this cellular communication system, makes to operate between the adjacent base station synchronously.In the up link sequential organization that use the base station, the base station utilizes the up link empty slot to measure ambient interferences.Yet; Because the operation in the neighbor cell is not synchronous; So the level of interference from neighbor cell can change in time, thereby making to be synchronized and to be controlled as with adjacent base station compares the simultaneous situation of uplink null of having a mind to, more be difficult to extract ambient interferences to aliquot.Interference need be controlled in the base station, and confirms and broadcasting power control factor α, so that received by near the wireless terminal it.According to the characteristic of this embodiment, the base station changes the broadcasting power control factor of the input that the conduct of its broadcasting controls wittingly so that measure response.
Operate in beginning in the step 1402, in step 1402, the base station powers on and initialization, and operation proceeds to step 1404.In step 1404, base station broadcast power control factor α 1At this moment, α 1It is the default value that from initialization, obtains.Then, in step 1406, ambient interferences W is measured in the base station during the empty time interval 1, wherein should the sky time interval empty time interval of up link WAN for example, ban use of the wireless communication terminal of this base station to send uplink signal in the time interval wittingly at this sky.Operation proceeds to step 1408 from step 1406.
In step 1408, base station adjustment power control factor is to confirm second power control factor α 2For example, α 2=α 1+ Δ α, wherein Δ α be nonzero value and can be on the occasion of or negative value.Usually, the value of Δ α is α 1The sub-fraction of value for example is less than or equal to α 125%.Operation proceeds to step 1410 from step 1408, and in step 1410, new power control factor α is sent in the base station 2Operation proceeds to step 1412 from step 1410.
In step 1412, ambient interferences W is measured in the base station during the empty time interval 2Operation proceeds to step 1414 from step 1412.In step 1414, power control factor α is confirmed according to the variation in the power control factor of variation in the measured ambient interferences and transmission in the base station 3For example, confirm α according to Δ W and Δ α 3, Δ W=W wherein 2-W 1In one exemplary embodiment, α 3Be α 3=α 2+ Δ α and α 3=α 1-Δ α. in one.Operation proceeds to step 1416 from step 1414, and wherein the base station is provided with α 1=α 3Then, operation proceeds to step 1404, in step 1404, and base station broadcast power control factor α 1
Figure 20 is the diagrammatic sketch of the relation curve 1500 of noise W and the α on the trunnion axis 1504 on the vertical axis 1502.Noise W is illustrated in the reception noise at the place, base station of attempting to recover uplink signal, and noise W comprises reciprocity noise and other area interference.Variable α is a power control factor.Curve 1506 is the indicatrixes with other area interference grade 1508 corresponding W and α.With the corresponding uplink null time interval of having a mind to of first base station during, to it is controlled as wireless terminal of network connection point, transmit to forbid uplink signal wittingly first base station.During the uplink null time interval that this is had a mind to, allow the reciprocity activity in the sub-district to proceed.Therefore, first base station receiver should the equity activity be regarded as noise, and should the equity activity produce contribution to measured noise W.
The hypothesis adjacent base station is operated with respect to first base station synchronization ground now.Because adjacent base station is synchronous with respect to first base station, so the uplink null time interval of having a mind to of adjacent base station needn't be overlapping with the intentionally empty time interval of first base station.Therefore, during the up link empty slot intentionally of first base station, the uplink signal of adjacent base station transmits also the measured noise W by first base station measurement is produced contribution.
The indicatrix 1506 of W and α is corresponding to the given level of other area interference 1508, and it representes least interference grade.If be operated on the approaching saturated point of curve 1506, then the increase of α can not bring remarkable improvement to reducing noise W.The increase of α is corresponding to the qualification of the through-put power that reciprocity signal is transmitted.Therefore, in this case, additionally limit reciprocity transmission power level and can not improve significantly for reception from the uplink signal of cellular radio terminals.Yet if be operated on the point with higher slope value of curve 1506, the less increase of α can bring marked change to the grade that reduces noise W.In this case, sometimes, for example, reducing α is of value to improvement to from the recovery based on the uplink signal of the wireless terminal of sub-district.For example, in this case, the less readjustment of reciprocity transmission power level can bring remarkable improvement to uplink signal transmission recovery and/or throughput.
Usually, in a plurality of embodiment, have precedence over reciprocity signal specify for the priority of good communications reception based on wide area (for example, honeycomb) and transmit.Yet, under the situation of the particular level of the given desired up link quality of reception based on the sub-district, hope to make peer-to-peer communications throughput-maximized.Can find that W and α indicatrix will change according to other area interference.Other area interference can and be independent of first cell operation sometimes and changes.For example since in the condition, neighbor cell based on the number of the wireless terminal user of honeycomb, the load of neighbor cell uplink service etc., other area interference that stand first base station can change to different brackets.The curve chart 1600 of Figure 21 shows with other area interference grade 1508 of Figure 20 and compares other different area interference grades 1608.In addition, Figure 21 shows the different characteristic curve of comparing with indicatrix 1,506 1606.
Figure 22 shows according to noise testing and comes illustrative methods that the selection of the power that in a plurality of embodiment, uses control factor α is adjusted.Figure 22 is noise W and the relation curve 1700 of the α on the trunnion axis 1504 on the vertical axis 1502 corresponding with indicatrix 1506.In when work, first base station possibly not know that this first base station is operated on other area interference grade 1508 corresponding indicatrixes 1506 with Figure 20, and wherein curve 1506 is one of the families of curves that comprise the curve 1606 of curve 1506 and Figure 21.
The first base station α is set to initial value α 11702, wherein this value is broadcasted.Reciprocity wireless terminal use value α in the sub-district of first base station 11702 control its reciprocity through-put power.During the up link empty slot intentionally of first base station, first base station measurement receives noise grade W, is expressed as W 11706.Then, first base station is wittingly with α 1Value change an amount Δ α 1708 to obtain α 21710.The input that this expression is controlled, it is used for will receiving wittingly noise grade and drives the difference (from 1704 to 1712) on indicatrix 1506.This parameter alpha of first base station broadcast 21710.Reciprocity wireless terminal use value α in the sub-district of first base station 21710 control its reciprocity through-put power.During the up link empty slot intentionally of first base station, first base station measurement receives noise grade W, is expressed as W 21714.The variation of the first base station measurement W, Δ W 1716.Then, new α value is confirmed according to input motivation value Δ α, measured response Δ W and interference budget information that some are stored in first base station.In certain embodiments, first base station is according at least one noise testing point, for example W 1Or W 2, confirm new α value.In this example, as put 1718 indicatedly, first base station is with new α value α if Δ W is less 3Be set to α 3=α 1-Δ α; And indicated like point 1720, first base station is with new α value α if Δ W is big 3Be set to α 3=α 2+ Δ α, for example, wherein less and big phasing really is for the predetermined interference budget information of being stored.Then, first base station broadcast power control factor α 3, so that be used to control its transmission power level by the reciprocity wireless terminal in the sub-district.
Figure 23 shows the diagrammatic sketch 1800 that uses in the example bandwidth of some embodiment that time division duplex (TDD) are used for wide area network (for example, being used for cellular communication).To wide area network, for example, for example share identical frequency band with the alternate mode between up link and the down link to the base station.For example, indicated according to square frame (1804,1806,1808,1810) along timeline 1802, the TDD frequency band that will be used for wide area (for example, cellular communication) is respectively applied for (up link, down link, up link, down link).Except that typical activity based on honeycomb, during the time interval that is preserved for the transmission of wide area uplink signal usually, peer broadcast signal, for example beacon signal and/or other broadcast singal are sent in the base station.This representes through corresponding with the time interval of square frame (1804,1808) respectively signal (1812,1814).In addition; As it is indicated with the concurrent cellular uplink square frame (1804,1808) of reciprocity square frame (1816,1818) respectively; The time interval that is allocated for wide area network (for example cellular uplink) also is used for reciprocity signal transmits, and wherein uses identical TDD frequency band.
Figure 24 shows the diagrammatic sketch 1900 that uses in the example bandwidth of some embodiment that FDD (FDD) are used for wide area network (for example, being used for cellular communication).To wide area network, for example to the base station, up link is used different frequency bands with down link.In this exemplary embodiment, along frequency axis 1902, FDD wide area uplink band is represented by square frame 1904, and the wide area downlink band is represented by square frame 1906.In certain embodiments, up link and downlink band are adjacent.In certain embodiments, up link and/or downlink band comprise discontinuous part.In certain embodiments, at least a portion of a frequency band in up link and the downlink band is included between two different pieces of another frequency band in up link and the downlink band.
Except the typically uplink signal transmission based on honeycomb in FDD wide area uplink band, this frequency band also is used for and reciprocity signal transmits other relevant activity.In Figure 24, FDD wide area uplink band 1904 also is used to send peer broadcast signal 1908 by the base station, is for example sent by the base station so that beacon signal and/or other broadcast singal that is used by reciprocity wireless terminal.As corresponding indicated by the square frame 1910 that is positioned on the frequency axis 1902 with FDD wide area uplink band 1904, reciprocity wireless terminal also uses same frequency band to be used for reciprocity signal and transmits.
Figure 25 is the diagrammatic sketch according to the exemplary multi-mode radio communications device 2000 of a plurality of embodiment realizations.Multi-mode radio communications device 2000 is supported wan communication and peer-to-peer communications.In certain embodiments, communication equipment 2000 uses FDD and uses time division duplex for peer-to-peer communications for wan communication.In some this embodiment, the frequency band that is used for peer-to-peer communications is identical with the frequency band that is used for the up link WAN communication.Wireless Telecom Equipment 2000 comprises transceiver module 2002, user I/O equipment 2004, processor 2006 and the memory 2008 that is coupled via bus 2010, and wherein each element can pass through bus 2010 swap datas and information.
For example, user I/O equipment 2004 comprises microphone, keyboard, keypad, camera, switch, mouse, loud speaker, display.User I/O equipment 2004 allows at least some functions of user input data/information, visit dateout/information and the control communication equipment 2000 of Wireless Telecom Equipment 2000; For example, communication equipment is arranged on the WAN operator scheme, communication equipment is arranged on the peering pattern, communication equipment is arranged on the operator scheme of permission WAN communication and peer-to-peer communications etc.Select among some embodiment of peer-to-peer communications the user, communication equipment automatically switches to the WAN operator scheme so that can keep watch on the WAN paging signal that is transmitting on the basis of circulation.Communication equipment is arranged among some embodiment that support the WAN signal to transmit the operator scheme that transmits with reciprocity signal the user, communication equipment according to receive priority consider and switch in the consideration at least one come automatically between pattern, to switch.
Memory 2008 comprises routine 2050 and data/information 2052.Processor 2006, CPU for example, executive routine 2050 also uses data/information 2052 in the memory 2008 to control the operation and the implementation method of Wireless Telecom Equipment 2000.
Transceiver module 2002 comprises duplexer module 2024, transmitter chain 2001, first receiver chain 2003, second receiver chain 2005, switch 2032, analog to digital converter (ADC) 2034 and digital signal processor (DSP) 2016.DSP 2016 comprises digital sending signal module 2042, mode control module 2044 and digital received signaling module 2046.Transmitter chain 2001 is used to generate the transmission signals with a RF frequency, and a RF frequency is for example by f ULThe frequency of expression.First receiver chain 2003 is used for the signal with the 2nd RF frequency that is received is handled, and the 2nd RF frequency is for example by f DLThe frequency of expression.Second receiver chain 2005 is used for the signal with a RF frequency that is received is handled, and a RF frequency is for example by f ULThe frequency 2026 of expression.
Transmitter chain 2001 comprises digital to analog converter (DAC) 2018, frequency mixer 2020 and power amplifier (PA) 2022.Digital sending signal module 2042 outputs to DAC 2018 with digital signal, and it converts digital signal into analog signal.This analog signal is input to frequency mixer 2020, and it also has input 2026, and wherein importing 2026 is uplink frequency (f UL), wide area network uplink communication frequency band carriers frequency for example.The output of frequency mixer 2020 is input to power amplifier 2022, power amplifier 2022 signal that is received is amplified and will be amplifying signal output to duplexer module 2024.Duplexer module 2024 is coupled the amplifying signal that is received so that send to antenna 2012, and wherein communication equipment 2000 sends signal via antenna 2012.The signal that when Wireless Telecom Equipment 2000 is operated in the WAN operator scheme, is sent comprises uplink signal, and the signal that is sent during in the peering pattern when this communication device works comprises reciprocity signal.
First receiver chain 2003 comprises the first band pass filter (BPF 12028) and frequency mixer 2030; Second receiver chain 2005 comprises the second band pass filter (BPF 22038) and frequency mixer 2040.When operating so that when receiving the WAN signal Wireless Telecom Equipment 2000, mode control module 2044 control switchs 2032 are so that be coupled to ADC 2034 with the output of first receiver chain 2003.Alternatively, when operating so that when receiving reciprocity signal this Wireless Telecom Equipment, mode control module 2044 control switchs 2032 are so that be coupled to ADC2034 with the output of second receiver chain 2005.
Suppose that mode control module 2044 controls switch 2032 so that first receiver chain 2003 is coupled to ADC 2034.Receive down link signal via antenna 2012, and this signal is coupled to BPF via duplexer module 2024 from the base station 12028.The output of band pass filter 1 2028 is input to frequency mixer 2030.Another input of frequency mixer 2030 is down-link frequencies (f DL) 2036, wide area network downlink communication frequency band carriers frequency for example.Mixer module 2030 is removed carrier frequency, thereby for example obtains analog baseband signal.The output signal of for example analog baseband signal is input to ADC transducer 2034 via switch 2032.ADC transducer 2034 is handled input signal, representes thereby obtain digital signal, wherein this digital signal is represented to be input to digital received signaling module 2046.
Hypothesis mode control module 2044 is controlled switch 2032 so that second receiver chain 2005 is coupled to ADC 2034 now.Via the reciprocity signal of antenna 2014 receptions, and should be coupled to BPF by the equity signal from the Wireless Telecom Equipment that is operated in ad-hoc mode 22038.The output of band pass filter 2 2038 is input to frequency mixer 2040.Another input of frequency mixer 2040 is uplink frequency (f UL) 2026, for example also be used for the wide area network uplink communication frequency band carriers frequency that reciprocity signal transmits.Mixer module 2040 is removed carrier frequency, thereby for example obtains analog baseband signal.The output signal of for example analog baseband signal is input to ADC transducer 2034 via switch 2032.ADC transducer 2034 is handled input signal, representes thereby obtain digital signal, wherein this digital signal is represented to be input to digital received signaling module 2046.
Mode control module 2044 is switched between the use of first receiver chain and second receiver chain (2003,2005) according to specifying these mode control module 2044 selections constantly to use which pattern in first operator scheme and second operator scheme.In a plurality of embodiment, first operator scheme is the frequency division duplex operation pattern, and for example wide area network FDD operator scheme, and second operator scheme is the peer-to-peer communications operator scheme, for example time division duplex (TDD) peering pattern.
In certain embodiments, mode control module 2044 automatically controls switching according to the wide area network receiving scheduling of communication equipment 2000 realizations.In some this embodiment; Schedule information indicates when multi-mode communication device 2000 can receive the wide area network beep-page message; Can receive at multi-mode communication device 2000 during the time period of wide area network beep-page message; The said equipment 2000 of said mode control module 2044 controls is operated in first operator scheme, for example the WAN operator scheme.In certain embodiments, mode control module 2044 makes equipment 2000 import according to the user who is received and selects switch mode.In certain embodiments, mode control module 2044 makes equipment 2000 come switch mode according to receiving precedence information.In various embodiments, mode control module 2044 makes equipment 2000 come switch mode according to switching indicator signal.In certain embodiments, mode control module 2044 makes equipment 2000 come switch mode according to schedule information, and some time durations restriction peer-to-peer communications that for example transmits at the high WAN signal of expection disturbs to reduce.In certain embodiments; Mode control module 2044 makes equipment 2000 come switch mode according to positional information; For example; Some positions possibly be positioned at outside the cellular coverage, and perhaps other position possibly crossed near with the base station so that owing to consider and do not allow the reciprocity signal in the uplink band to transmit in the interference at base station receiver place, and perhaps the service provider does not authorize and in the specific region, uses the WAN signal to transmit or reciprocity signal one of transmits.In certain embodiments, mode control module 2044 makes equipment 2000 come switch mode according to the variations that on the link of current maintenance, detects.
Routine 2050 comprises Communications routines 2054 and wireless terminal control routine 2056.The various communication protocols that Communications routines 2054 realizes by Wireless Telecom Equipment 2000 uses.Wireless terminal control routine 2056 comprises I/O module 2058, frequency band module 2060, paging module 2062, wide area network control module 2064, reciprocity control module 2066, receives priority block 2068 and handover module 2070.Data/information 2052 comprises the information 2082 that schedule information 2072, user model are selected information 2074, wide area network signal 2076, reciprocity signal 2078, switching indicator signal 2080 and identified present mode.
The operation of I/O module 2058 control user I/O equipment 2004 also receives user model and selects information 2074, and the user who for example uses the WAN signal to transmit selects, enables the user that reciprocity signal transmits and selects, places the user of the pattern of automatically between WAN and peering, switching according to receiving precedence information and/or handover information to select equipment.
The frequency input signal f that is used by the transmitter chain 2001 and second receiver chain 2005 is selected and be provided with to frequency band module 2060 UL2026, and the f that is used by first receiver chain 2003 is set DL2036.
The paging module 2062 controls operation relevant with paging.In certain embodiments, when enabling that peering and Wireless Telecom Equipment 2000 are main to be used reciprocity signal to transmit to operate, during the WAN paging time interval in round-robin scheduling communication equipment 2000 switched to and receive the WAN paging signal.
In the time of in being in the WAN pattern; 2064 pairs of operations of WAN control module are controlled; For example control figure transmission signaling module 2042 will be passed to the uplink signal as the base station of network connection point to generate, and control figure receives signaling module 2046 so that the institute's receiving downlink signal from the base station is handled.
In the time of in being in ad-hoc mode; 2066 pairs of operations of equity control module are controlled; For example control figure sends signaling module generating the reciprocity signal that will be sent to other wireless terminal that is operated in ad-hoc mode, and control figure receives signaling module 2046 so that the reciprocity signal that received from other wireless terminal that is operated in the peering pattern is handled.
Receiving priority block 2068 is specifying the moment to confirm whether WAN network communication has priority or reciprocity signal transmits whether have priority.Mode control module 2044 is used the definite of module 2068, and wherein mode control module 2044 is controlled between the optional receiver chain (2003,2005) and switches so that realize WAN communication or peer-to-peer communications respectively.Thereby this mode control module 2044 is switched between WAN pattern and ad-hoc mode according to receiving precedence information.For example, in certain embodiments, specify the priority of transmitting for the WAN signal to have precedence over reciprocity signal usually and transmit; Yet, at least some user types and/or some signal transmission types, specify the priority of transmitting for reciprocity signal to have precedence over the wide area network signal and transmit, for example transmit with corresponding user of emergency services and/or signal.As another instance, come assigned priority based on the consideration of estimation contention delay and/or the grade of service.
Handover module 2070 determines whether the part with reciprocity signal transmits or the transmission of WAN signal is used to switch.The switching indicator signal 2080 that handover module 2070 generate pattern control modules 2044 are responded, thus mode switch caused.Some switch-over control signal 2080 indications switch to the wan communication link from peer-to-peer communication link, thereby cause from the peering mode switch to the wide area network operator scheme.2080 indications of other switch-over control signal from the wan communication link switchover to peer-to-peer communication link, thereby cause switching to the peering pattern from the wide area network operator scheme.
Schedule information 2072 comprises WAN schedule information 2084 and reciprocity schedule information 2086.WAN schedule information 2084 comprises the information of definition up link sequential/frequency structure and the information of definition down link sequential/frequency structure.WAN schedule information 2084 comprises the information that identifies the WAN paging time interval.In certain embodiments, insert in of the WAN paging of at least some WAN paging time interval pause peerings with support of wireless communication equipment.Reciprocity schedule information 2086 comprises different information to constant duration in the reciprocity sequential organization of sign circulation, wherein to the for example reciprocity discovery time of constant duration interval, the reciprocity paging time interval and business hours interval.
User model selects information 2074 to comprise the information from the preference pattern identifying user order or request of I/O module 2058, for example wide area network pattern, ad-hoc mode, or the pattern that allows communication equipment 2000 to replace automatically between WAN pattern and ad-hoc mode according to for example signal quality, priority, load and/or handover information.
The WAN signal comprises institute's receiving downlink signal and the uplink signal that will send.For example, the institute's receiving downlink signal from the base station comprises beacon signal, pilot frequency channel signal, synchronizing signal, power control signal, timing control signal, paging signal, distributing signal and traffic channel signal.For example, uplink signal comprises DCCH signal, page request signal and the uplink traffic channel signals that inserts signal, timing control signal, comprises air link resources request signal and channel condition report.
The equity signal comprises that equity is sent signal and equity receives signal.For example, exemplary equity transmission signal comprises the user's beacon signal that identifies communication equipment 2000, reciprocity paging signal, reciprocity service request signal and reciprocity service signal.For example, exemplary equity reception signal comprises from user's beacon of other Wireless Telecom Equipment of local near zone, reciprocity paging signal, reciprocity service request signal and reciprocity service signal.
Switching indicator signal 2080 is to use from the output of handover module 2070 and by mode control module 2044.2082 indications of present mode information and the mode control signal 2048 corresponding present modes that are provided with by mode control module 2044.
In certain embodiments, using identical antenna, still is second receiver chain 2005 and do not consider using first receiver chain 2003.In certain embodiments, use extra switch that one of first receiver chain 2003 and second receiver chain 2005 are coupled to duplexer module 2024, the operation of extra switch and the operation of switch 2032 are coordinated.
In a plurality of embodiment, do not use duplexer module 2024, but transmitter and receiver is used independently antenna.In certain embodiments, use extra switch that first receiver chain 2003 and second receiver chain 2005 are coupled to reception antenna, the operation of extra switch and the operation of switch 2032 are coordinated.
In certain embodiments, first band pass filter is different hardware devices with second band pass filter.In certain embodiments, first band pass filter and second band pass filter are programmable and it are programmed to realize different filters.
In another embodiment, use single frequency mixer to replace frequency mixer (2030,2040), wherein come at f according to mode control signal DLAnd f ULBetween controllably switch incoming frequency, and come the switching band bandpass filter according to mode control signal.
In certain embodiments, be included in each element among the DSP 2016, for example mode control module 2044, are included in the routine 2050.In certain embodiments, each element that is included in the memory 2008 is included in the transceiver module 2002.In certain embodiments, realize independent transmitting set module and independent wireless receiver module, to replace transceiver module 2002.
Figure 26 shows the diagrammatic sketch 2100 according to wan communication use and exemplary band between the peer-to-peer communications use and the use of shared frequency band of a plurality of embodiment.Frequency band as the wan communication frequency band also is assigned with as reciprocity TDD receiver frequency band and reciprocity TDD transmitter band.For example, the frequency band shown in Figure 26 can be utilized by the multi-mode radio communications device 2000 of Figure 25, for example, wherein provides and/or use different WAN up links and downlink communication frequency band right at diverse location and/or at different time.
Trunnion axis 2101 expression frequencies.With frequency f UL12103 is corresponding, exists wide area network up link FDD frequency band 2102, reciprocity time division duplex to send frequency band 2106 and reciprocity time division duplex frequency acceptance band 2108.Wide area network up link FDD frequency band 2102 is paired with wide area network down link frequency division duplex band 2104.With frequency f DL12105 is corresponding, has wide area network down link frequency division duplex band 2104.
Equally, with frequency f UL22113 is corresponding, exists wide area network up link FDD frequency band 2112, reciprocity time division duplex to send frequency band 2116 and reciprocity time division duplex frequency acceptance band 2118.Wide area network up link FDD frequency band 2112 is paired with wide area network down link frequency division duplex band 2114.With frequency f DL22115 is corresponding, has wide area network down link frequency division duplex band 2114.
Equally, with frequency f UL32123 is corresponding, exists wide area network up link FDD frequency band 2122, reciprocity time division duplex to send frequency band 2126 and reciprocity time division duplex frequency acceptance band 2128.Wide area network up link FDD frequency band 2122 is paired with wide area network down link frequency division duplex band 2124.With frequency f DL32125 is corresponding, has wide area network down link frequency division duplex band 2124.
Consider the example devices 2000 of Figure 25.Communication equipment confirm to use among Figure 26 3 WAN frequencies to one of.For example, suppose to select second pair.Second receiver chain 2005 that will be used for that WAN and equity send the transmitter chain 2001 that signal transmits and be used for that reciprocity signal receives be tuned to f UL2To be used to receive the WAN signal first receiver chain 2003 be tuned to f DL2
Figure 27 comprise according to a plurality of embodiment operate multi-mode radio communications device illustrative methods flow chart 2200 and according to exemplary sequential organization 2250 information of a plurality of embodiment.Operating in the step 2202 of illustrative methods begins, and multi-mode radio communications device powers on and initialization in step 2202.For example, multi-mode radio communications device is the equipment 2000 of Figure 25.Operation proceeds to step 2204 from beginning step 2202.In step 2204, wireless device with its transmitter chain be tuned to first frequency band, said transmitter chain is used to send uplink signal and reciprocity signal.In step 2206, wireless device with its first receiver chain be tuned to second frequency band, said second frequency band is different with said first frequency band, said first receiver chain is used to receive the WAN down link signal.In step 2208, wireless device with its second receiver chain be tuned to first frequency band, said second receiver chain is used to receive reciprocity signal.Operation proceeds to step 2210 from step 2208.
In step 2210, wireless device receives the input that indication enables operator's selection of ad-hoc mode.Then, in step 2212, Wireless Telecom Equipment enables ad-hoc mode, with as the main operator scheme that will use.Operation proceeds to step 2214 from step 2212.In step 2214, wireless device automatically switched between peering pattern and WAN operator scheme according to the WAN paging time interval in the predetermined scheduling.For example, consider the multi-mode radio communications device 2000 of Figure 25, when the scheduling indication paging time interval took place, mode control module 2044 control switchs 2032 were so that be coupled to ADC 2034 with first receiver chain 2003; Yet when the scheduling indication paging time interval did not take place, mode control module 2044 control switchs 2032 were so that be coupled to ADC 2034 with second receiver chain 2005.
The exemplary sequential organization information of diagrammatic sketch 2250 indications of Figure 27, it identifies the exemplary WAN paging time intervals (2254,2258) and exemplary to constant duration (2256,2260) along time shaft 2252 in the exemplary cycle sequential organization.
Figure 28 is a flow chart 2500 of operating the illustrative methods of multi-mode radio communications device according to a plurality of embodiment.For example, multi-mode radio communications device is the equipment 2000 of Figure 25.Operate in the step 2502 beginning, in step 2502, multi-mode communication device powers on and initialization and proceed to step 2504.In step 2504, wireless terminal selects first fdd uplink/down link right a plurality of optional centerings, for example has a pair of FDD frequency band that relevant tuner frequencies is provided with.It is right that the diagrammatic sketch 2100 of Figure 26 shows three exemplary FDD uplink/downlinks.
Operation proceeds to step 2506 from step 2504; In step 2506; The transmission signals that tuning first transmitter chain of communication equipment has a RF frequency with generation, and in step 2508, tuning first receiver chain of communication equipment is to handle the received signal with the 2nd RF frequency.Operation proceeds to step 2510 from step 2508, and in step 2510, tuning second receiver chain of communication equipment is to handle the received signal with said RF frequency.In certain embodiments, the one or more steps in the executed in parallel step 2506,2508 and 2510.In a plurality of embodiment, a RF frequency is corresponding to the right FDD up link of in step 2504, selecting of FDD, and the 2nd RF frequency is corresponding to the right FDD down link of in step 2504, selecting of FDD.
Operation proceeds to step 2512 from step 2510.In step 2512, communication equipment receives user's input of identifying user model selection, for example, and peer-to-peer communications pattern or wan communication pattern.Operation proceeds to step 2514 from step 2512.In step 2514, select whether enable ad-hoc mode according to the user of step 2512, communication equipment is operated along different paths.
If enable ad-hoc mode, then operate and proceed to step 2516 from step 2514.If do not enable ad-hoc mode; Then operate and proceed to step 2518 from step 2514; In step 2518, communication equipment uses said transmitter chain and said first receiver chain in second operator scheme, to operate, wherein second operator scheme wide area network FDD operator scheme for example.
Return step 2516, in step 2516, communication equipment is specifying constantly to select to use which pattern in first operator scheme and second operator scheme according to mode control module, comes between said first and second receiver chains of use, to switch.In a plurality of embodiment, this switching is to carry out with automatic or semi-automatic mode under the situation of user intervention not having.Step 2516 comprises substep 2520,2524,2526,2528,2530 and 2532.In substep 2520, in the time interval in the WAN receiving scheduling that communication equipment sign is realized by communication equipment, then in substep 2524, communication equipment confirms whether the time interval that in the WAN receiving scheduling, identifies indicate the WAN paging interval.If the indication paging interval is then operated from substep 2524 and is proceeded to substep 2526; Otherwise operation proceeds to substep 2528 from substep 2524.
Return substep 2526, in substep 2526, the mode control module of communication equipment is selected first pattern, FDD WAN operator scheme for example, and in substep 2530, communication equipment switches to and uses first receiver chain.Return substep 2528, in substep 2528, the mode control module of communication equipment is selected second pattern, peer-to-peer communications operator scheme for example, and in substep 2532, communication equipment switches to and uses second receiver chain.
If substep 2530 has been passed through in operation, then operation proceeds to step 2534; And if substep 2532 has been passed through in operation, then operation proceeds to step 2536.In step 2534, communication equipment uses first receiver chain in first operator scheme, to operate to receive the WAN paging signal, wherein first operator scheme FDD WAN pattern for example.In step 2536, communication equipment uses second receiver chain and transmitter chain in second operator scheme, to operate, wherein second operator scheme peering pattern for example.In a plurality of embodiment, when the user enabled peering, communication equipment mainly used second receiver chain in second pattern, to operate; Yet during at least some paging time intervals of WAN sequential organization, communication equipment uses first receiver chain in first pattern, to operate.The step of operation from step 2534 and step 2536 proceeds to step 2516, with sign and consideration pattern and the switching relevant with another time interval.
Figure 29 is a flow chart 2600 of operating the illustrative methods of multi-mode radio communications device according to a plurality of embodiment.For example, multi-mode radio communications device is the equipment 2000 of Figure 25.Operate in the step 2602 beginning, in step 2602, multi-mode communication device powers on and initialization and proceed to step 2604.In step 2604, wireless terminal selects first fdd uplink/down link right a plurality of optional centerings, for example has a pair of FDD frequency band that relevant tuner frequencies is provided with.It is right that the diagrammatic sketch 2100 of Figure 26 shows three exemplary FDD uplink/downlinks.
Operation proceeds to step 2606 from step 2604; In step 2606; The transmission signals that tuning first transmitter chain of communication equipment has a RF frequency with generation, and in step 2608, tuning first receiver chain of communication equipment is to handle the received signal with the 2nd RF frequency.Operation proceeds to step 2610 from step 2608, and in step 2610, tuning second receiver chain of communication equipment is to handle the received signal with said RF frequency.In some are implemented, the one or more steps in the executed in parallel step 2606,2608 and 2610.In a plurality of embodiment, a RF frequency is corresponding to the right FDD up link of in step 2604, selecting of FDD, and the 2nd RF frequency is corresponding to the right FDD down link of in step 2604, selecting of FDD.
Operation proceeds to step 2612 from step 2610.In step 2612; Communication equipment according to mode control module at the appointed time point selection use which pattern in second pattern of first pattern and for example peering pattern of wide area network fdd mode for example, come to switch using between first and second receiver chains.For example, multi-mode communication device uses transmitter, and does not consider that communication equipment is in the wide area network fdd mode and still is in ad-hoc mode.Yet for reception, multi-mode communication device uses first receiver chain and when being in the peering pattern, uses second receiver chain when being in the WAN fdd mode.Therefore, WAN communication is FDD, and peer-to-peer communications is TDD, and wherein peer-to-peer communications is shared WAN FDD uplink band.
Step 2612 comprises substep 2614,2616 and 2618.In substep 2614, communication equipment is confirmed and is received the corresponding reception priority of wide area network signal, and in substep 2616, communication equipment is confirmed and received the corresponding reception priority of reciprocity signal.Then, in substep 2618, communication equipment is selected between first and second patterns according to correlation reception priority.
Operation proceeds to the input of step 2612 from the output of step 2612.For example owing to the specific user of communication equipment, class of service information, the data type that will transmit, the data volume that will transmit, postpone to consider etc. that receiving priority can and change sometimes in time.
Figure 30 is a flow chart 2700 of operating the illustrative methods of multi-mode radio communications device according to a plurality of embodiment.For example, multi-mode radio communications device is the equipment 2000 of Figure 25.Operate in the step 2702 beginning, in step 2702, multi-mode communication device powers on and initialization and proceed to step 2704.In step 2704, wireless terminal selects first fdd uplink/down link right a plurality of optional centerings, for example has a pair of FDD frequency band that relevant tuner frequencies is provided with.It is right that the diagrammatic sketch 2100 of Figure 26 shows three exemplary FDD uplink/downlinks.
Operation proceeds to step 2706 from step 2704; In step 2706; The transmission signals that tuning first transmitter chain of communication equipment has a RF frequency with generation, and in step 2708, tuning first receiver chain of communication equipment is to handle the received signal with the 2nd RF frequency.Operation proceeds to step 2710 from step 2708, and in step 2710, tuning second receiver chain of communication equipment is to handle the received signal with said RF frequency.In some are implemented, the one or more steps in the executed in parallel step 2706,2708 and 2710.In a plurality of embodiment, a RF frequency is corresponding to the right FDD up link of in step 2704, selecting of FDD, and the 2nd RF frequency is corresponding to the right FDD down link of in step 2704, selecting of FDD.
Operation proceeds to step 2712 from step 2710.In step 2712, communication device monitors is switched indicator signal.For the switching indicator signal that is detected, operation proceeds to step 2714 from step 2712.
In step 2714, communication equipment confirms whether switching is to the WAN communication link from peer-to-peer communication link.If confirming to switch is from the peer-to-peer communication link to the wide-area network link, then operate proceeding to step 2716 from step 2714; Otherwise operation proceeds to step 2718 from step 2714.
In step 2718, communication equipment confirms whether switching is to peer-to-peer communication link from the WAN communication link.If confirm to switch be from the WAN communication link to peer link, then operate and proceed to step 2720 from step 2718; Otherwise, for example switch in and take place between different base station or the different base station sector in the WAN network and do not carry out the switching between the receiver, so operation proceeds to step 2712 from step 2718 because Linktype does not change.
Return step 2716, communication equipment is from second operator scheme in step 2716, and for example the peering pattern switches to first operator scheme, for example the WAN operator scheme.Return step 2720, communication equipment is from first operator scheme in step 2720, and for example the WAN operator scheme switches to second operator scheme, for example the peering pattern.The step of operation from step 2716 and 2720 proceeds to step 2722.
In step 2722; Communication equipment according to which pattern in second operator scheme of specifying first pattern of selecting to use wide area network fdd mode for example constantly and for example peer-to-peer communications operator scheme comes between said first and second receiver chains of use, to switch.For example,, then switch, make the use of receiver chain transform to first receiver chain from second receiver chain if operation is carried out along step 2716.Continue this instance,, then switch, make the use of receiver chain transform to second receiver chain from first receiver chain if operation is carried out along step 2720.Operation proceeds to step 2712 so that keep watch on additional switching indicator signal from step 2722.
In a plurality of embodiment, in the WAN FDD of for example cellular operated pattern operator scheme and in the peering pattern of for example TDD peering pattern, use identical transmitter chain.Yet, and when being in the peering pattern, compare, when being in the WAN operator scheme, adopt the different received chain.In a plurality of embodiment, to compare with the frequency band that in WAN, is used for the uplink signal transmission, TDD peering pattern is used for identical frequency band to send and receive.
In certain embodiments; The compatible reciprocity signal of communication system based on honeycomb of at least one among use TDD and the FDD transmits; Wherein at least some reciprocity signals transmit share air link resources; This air link resources also is used for the up link wide area network, and for example the uplink signal based on the sub-district transmits.In certain embodiments; Typically making amendment based on the communication system of honeycomb of at least one among use TDD and the FDD transmitted with the reciprocity signal of compatibility; Wherein at least some reciprocity signals transmit share air link resources; This air link resources is preserved for the up link wide area network usually, and for example the uplink signal based on the sub-district transmits.In certain embodiments, many supports can continue in this communication system, to use based on the signal transmission of sub-district and the conventional communication device of not supporting reciprocity signal to transmit.In a plurality of embodiment, communication system is supported the mixing of communication equipment, and wherein at least some communication equipments are supported peer-to-peer communications and do not supported the communication based on the sub-district.In certain embodiments, communication equipment is supported the mixing of communication equipment, and wherein at least some communication equipments are supported peer-to-peer communicationss and communicated by letter both based on the sub-district.
Although mainly under the background of ofdm system, describe, the method and apparatus of a plurality of embodiment can be applicable to communication system widely, comprises many non-ofdm systems and/or non-cellular system.The certain exemplary system is included in the mixing of the technology of utilizing in the reciprocity signal transmission, for example some OFDM type signals and number of C DMA type signal.
In a plurality of embodiment; One or more modules that use is used to carry out with the corresponding step of one or more methods realize described node here, and wherein said step for example scans uplink bandwidth, estimates base station signal, confirms the transmission power level Control Parameter, controls reciprocity through-put power, measures and disturb, confirm through-put power controlling value, transmission through-put power Control Parameter etc.In certain embodiments, a plurality of characteristics use module to realize.These modules can use the combination of software, hardware or software and hardware to realize.Can use (for example such as the machine readable media of memory devices; RAM, floppy disk etc.) in the machine-executable instruction that comprises such as software realize many said methods or method step; So that control machine; For example have or do not have the all-purpose computer of additional firmware, thereby for example in one or more nodes, realize all or part of of said method.Therefore, in addition, a plurality of embodiment relate to machine readable media, and it comprises and is used to make machine (for example processor and related hardware) to carry out the machine-executable instruction of one or more steps of said method.
Through above description, those skilled in the art will know the many additional variations to said method and device.Should these modification be regarded as in scope.The method and apparatus of a plurality of embodiment can use and in a plurality of embodiment, use CDMA, OFDM (OFDM) and/or can be used between access node and mobile node, providing the communication technology of various other types of wireless communication link.In certain embodiments, access node is embodied as the base station, it uses OFDM and/or CDMA to come to set up communication link with mobile node.In a plurality of embodiment, mobile node is embodied as notebook computer, the PDA(Personal Digital Assistant) of the method that is used to realize a plurality of embodiment or comprises other portable equipment of receiver/transmitter circuitry and logic and/or routine.

Claims (59)

1. the method for an operate wireless communication terminal, said method comprises:
The scanning uplink bandwidth is to detect from signal of base station;
Estimation is from the said signal of said base station; And
According to said estimation, on said uplink bandwidth, send reciprocity signal to another wireless communication terminal from the said signal of said base station.
2. method according to claim 1, wherein the said signal from said base station is a beacon signal.
3. method according to claim 1 estimates that wherein the said signal from said base station comprises the transmission mode of estimating said base station signal.
4. method according to claim 1 also comprises:
After sending said reciprocity signal, continue to keep watch on said base station signal; And
Continuation according to said base station signal is kept watch on, and reduces through-put power.
5. method according to claim 1, wherein said uplink bandwidth comprise by equipment and are used for the frequency set to said base station transmit signals.
6. method according to claim 1, wherein the said signal from said base station has predetermined format.
7. method according to claim 5, wherein the said signal from said base station sends at the fixed time.
8. method according to claim 5 is wherein sent reciprocity signal and is comprised that the component frequency that uses in the said frequency set sends said reciprocity signal.
9. method according to claim 1, estimate that wherein the said signal from said base station comprises:
Measurement is from the power level of the said signal of said base station.
10. method according to claim 2, wherein said beacon signal are in the OFDM symbol, to comprise the signal that is less than 3 tones.
11. method according to claim 9 also comprises:
After sending said reciprocity signal, continue to keep watch on the addition of base station signal; And
According to adjusting through-put power to said addition of base station signal with from the detection of the difference between the received power of the said signal of said base station.
12. a wireless communication terminal comprises:
Scan module is used to scan uplink bandwidth to detect from signal of base station;
The signal estimation module is used to estimate the said signal from said base station; And
Transmitting set is used on said uplink bandwidth, sending reciprocity signal to another wireless communication terminal according to the said estimation from the said signal of said base station.
13. wireless communication terminal according to claim 12, wherein the said signal from said base station is a beacon signal.
14. wireless communication terminal according to claim 12, wherein said signal estimation module comprises the transmission mode estimation block, is used to estimate the transmission mode of said base station signal.
Transmit 15. wireless communication terminal according to claim 12, wherein said signal scanning module continue to keep watch on base station signal after sending said reciprocity signal, said wireless communication terminal also comprises:
Power control module is used for reducing through-put power according to the continuation of said base station signal transmission is kept watch on.
Be used for the frequency set to said base station transmit signals 16. wireless communication terminal according to claim 12, wherein said uplink bandwidth comprise by equipment, said wireless communication terminal also comprises:
Identify the stored information of said frequency set.
17. wireless communication terminal according to claim 12, wherein the said signal from said base station has predetermined format, and said wireless communication terminal also comprises:
Identify the stored information of said predetermined format.
18. wireless communication terminal according to claim 17, wherein the said signal from said base station sends at the fixed time, and said wireless terminal also comprises:
Be identified at the round-robin scheduling information of storing of the said scheduled time of the base station transmits in the said uplink bandwidth.
19. wireless communication terminal according to claim 16, wherein said transmitting set also comprises tuner, and wherein said tuner is set to when sending reciprocity signal, use the component frequency in the said frequency set.
20. wireless communication terminal according to claim 12, wherein said signal estimation module comprises power measurement module, is used to measure the power level from the said signal of said base station.
21. wireless communication terminal according to claim 13, wherein said beacon signal are in the OFDM symbol, to comprise the signal that is less than 3 tones.
22. wireless communication terminal according to claim 20, wherein said scan module continue to keep watch on the addition of base station signal after sending said reciprocity signal, said wireless terminal also comprises:
The through-put power control module is used for according to adjusting through-put power to said addition of base station signal with from the detection of the difference between the received power of the said signal of said base station.
23. a Wireless Telecom Equipment comprises:
Scan module is used to scan uplink bandwidth to detect from signal of base station;
Be used to estimate module from the said signal of said base station; And
Be used for according to the module of the said estimation from the said signal of said base station being come on said uplink bandwidth to send reciprocity signal to another wireless communication terminal.
24. Wireless Telecom Equipment according to claim 23, wherein the said signal from said base station is a beacon signal.
25. Wireless Telecom Equipment according to claim 23 wherein saidly is used to estimate that the module from the said signal of said base station comprises the module of the transmission mode that is used to estimate said base station signal.
Be used for the frequency set to said base station transmit signals 26. Wireless Telecom Equipment according to claim 23, wherein said uplink bandwidth comprise by equipment, said Wireless Telecom Equipment also comprises:
Be used for module at the said frequency set of stored information identification.
27. Wireless Telecom Equipment according to claim 23, wherein the said signal from said base station has predetermined format, and said Wireless Telecom Equipment also comprises:
Be used for from the module of the said predetermined format of stored information identification.
28. Wireless Telecom Equipment according to claim 23, the wherein said module that is used to estimate comprise the module that is used to measure from the power level of the said signal of said base station.
29. the device of an operate wireless communication terminal comprises:
Be used to scan uplink bandwidth to detect module from signal of base station;
Be used to estimate module from the said signal of said base station; And
Be used for according to said estimation, on said uplink bandwidth, send the module of reciprocity signal to another wireless communication terminal from the said signal of said base station.
30. device according to claim 29, wherein the said signal from said base station is a beacon signal.
31. device according to claim 29 wherein saidly is used to estimate that the module from the said signal of said base station also comprises the module of the transmission mode that is used to estimate said base station signal.
32. comprising by equipment, device according to claim 29, wherein said uplink bandwidth be used for frequency set to said base station transmit signals.
33. device according to claim 29, wherein the said signal from said base station has predetermined format.
34. device according to claim 29 wherein saidly is used to estimate that the module from the said signal of said base station also comprises the module that is used to measure from the power level of the said signal of said base station.
35. a method of operating the base station comprises:
Cellular communication apparatus receiving uplink signal from uplink band, sending during very first time section to said base station;
Use second frequency band different with said uplink band to come to send at least some said cellular communication apparatus, said second frequency band is a downlink band; And
In said uplink band, sending broadcast singal during second time period, to help the peer-to-peer communications between the two in the cellular communication apparatus that on said uplink band, carry out, said.
36. method according to claim 35, wherein said broadcast singal is a beacon signal.
37. method according to claim 35, wherein said broadcast singal are the power delivery level controling signals.
38. according to the described method of claim 37, wherein said power delivery level controling signal is reciprocity power delivery level controling signal.
39. method according to claim 35; Wherein during said very first time section; Receive the said uplink signal from cellular communication apparatus under the situation of the peer-to-peer communications signal that in existing in said uplink band, sends, wherein said peer-to-peer communications signal produces said uplink signal and disturbs.
40. a base station comprises
The wireless receiver module is used for the cellular communication apparatus receiving uplink signal from sending to said base station at uplink band during very first time section;
The transmitting set module; Be used to use downlink band to send at least some said cellular communication apparatus; And be used for during second time period, sending broadcast singal at said uplink band; To help the peer-to-peer communications between the two in the cellular communication apparatus that on said uplink band, carry out, said, wherein said uplink band is different with said downlink band.
41. according to the described base station of claim 40, wherein said first and second time periods are nonoverlapping.
42. according to the described base station of claim 40, wherein said broadcast singal is a beacon signal, said base station also comprises:
The beacon signal generation module is used for generating the beacon signal that will send at said uplink band.
43. according to the described base station of claim 40, wherein said broadcast singal is the power delivery level controling signal.
44. according to the described base station of claim 43, wherein said power delivery level controling signal is reciprocity power delivery level controling signal.
45. according to the described base station of claim 40; Wherein during said very first time section; Receive the said uplink signal from cellular communication apparatus under the situation of the peer-to-peer communications signal that in existing in said uplink band, sends, wherein said peer-to-peer communications signal produces said uplink signal and disturbs.
46. according to the described base station of claim 42, said beacon signal is also sent except that in said uplink band, sending the beacon signal in wherein said base station in said downlink band.
47. according to the described base station of claim 42, the said beacon signal in the wherein said downlink band is used by cellular communication apparatus, and the said beacon signal in the wherein said uplink band is used by peer communications devices.
48. according to the described base station of claim 42; Wherein cellular communication apparatus is used for Base Station Identification with at least one beacon signal in the said downlink band, and wherein peer communications devices is used for reciprocity through-put power control with at least one beacon signal in the said uplink band.
49. a base station comprises
The wireless receiver module is used for the cellular communication apparatus receiving uplink signal from sending to said base station at uplink band during very first time section;
Be used for using downlink band to send and be used for sending the module of broadcast singal with peer-to-peer communications between the two that help on said uplink band, to carry out, said cellular communication apparatus at said uplink band during second time period at least some said cellular communication apparatus, wherein said uplink band is different with said downlink band.
50. according to the described base station of claim 49, wherein said broadcast singal is a beacon signal, said base station also comprises:
Be used for generating the module of the beacon signal that will send at said uplink band.
51. according to the described base station of claim 49, wherein said broadcast singal is the power delivery level controling signal.
52. according to the described base station of claim 49; Wherein during said very first time section; Receive the said uplink signal from cellular communication apparatus under the situation of the peer-to-peer communications signal that in existing in said uplink band, sends, wherein said peer-to-peer communications signal produces said uplink signal and disturbs.
53. according to the described base station of claim 50, wherein said base station also comprises:
Be used for except that the module of said uplink band sends beacon signal, also in said downlink band, sending said beacon signal.
54. according to the described base station of claim 50, the said beacon signal in the wherein said downlink band is used by cellular communication apparatus, and the said beacon signal in the wherein said uplink band is used by peer communications devices.
55. a device of handling the base station comprises:
Be used for during very first time section from the module of the cellular communication apparatus receiving uplink signal that sends to said base station at uplink band;
Be used to use second frequency band different with said uplink band to come to send at least some said cellular communication apparatus, said second frequency band is the module of downlink band; And
Be used for during second time period, sending broadcast singal, to help the module of the peer-to-peer communications between the two in the cellular communication apparatus that on said uplink band, carry out, said at said uplink band.
56. according to the described device of claim 55, wherein said broadcast singal is a beacon signal.
57. according to the described device of claim 55, wherein said broadcast singal is the power delivery level controling signal.
58. according to the described device of claim 57, wherein said power delivery level controling signal is reciprocity power delivery level controling signal.
59. according to the described device of claim 55; Wherein during said very first time section; Receive the said uplink signal from cellular communication apparatus under the situation of the peer-to-peer communications signal that in existing in said uplink band, sends, wherein said peer-to-peer communications signal produces said uplink signal and disturbs.
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