CN101518121A - Methods and apparatus related to a multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling - Google Patents
Methods and apparatus related to a multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling Download PDFInfo
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Abstract
Methods and apparatus related to the sharing of wide area network (WAN) uplink bandwidth with peer to peer communication signaling usage are described. A multi-mode wireless communications device supporting both WAN communications and peer to peer communications includes: a transmitter chain for generating signals having a first RF frequency, a first receiver chain for processing received signals having a second RF frequency, and a second receiver chain for processing signals having the first RF frequency. This design is particularly advantageous in a communications system where a WAN frequency division duplex uplink band is shared with time division duplex (TDD) peer to peer communications signaling. The wireless terminal sets the transmitter chain and the second receiver chain to the FDD uplink band and sets the first receiver chain to the FDD downlink band. This design accommodates rapid mode switching between the two modes of operation and reuses hardware where possible.
Description
Related application
That the application requires to submit on September 15th, 2006, clearly quote the U.S. Provisional Patent Application S.N.60/845 that is entitled as " BEACONSIN A MIXED WIRELESS COMMUNICATION SYSTEM (beacon in the mixed wireless communications system) " that includes in this, 053 rights and interests.
The field
The present invention relates to be used for method of wireless communication and device, relate in particular to the method and apparatus relevant with peer-to-peer communications.
Background
Dissimilar replacement wireless communication approaches has become available.A kind of way relates to for example use of wide area network such as cellular network, wherein guides wireless terminal communications by serving as the base station that network is connected into a little.Another kind of way relates to the use of reciprocity signaling, and wherein wireless terminal communications exchanges between wireless terminal and need not to be routed and pass through the base station.Sometimes it may be favourable using first kind of way, and other the time to use second kind of way may be favourable.Allow wireless terminal to support that the method and apparatus of these two kinds of ways will be useful if develop.If it will be favourable that such method and apparatus is convenient to switch fast between these alternatives.If realize that in the mode that can under different mode, utilize the hardware versatility hardware also will be desirable.
General introduction
Described to relate to and used the method and apparatus of sharing wide area network (WAN) uplink bandwidth with the peer-to-peer communications signaling.A kind of exemplary multi-mode radio communications device of WAN communication and peer-to-peer communications of supporting comprises: be used to generate the transmission signals with a RF frequency transmitter chain, be used to handle first receiver chain of receiving signal and be used to handle second receiver chain of receiving signal with a RF frequency with the 2nd RF frequency.In WAN operator scheme and peering pattern, use identical transmitter chain.First receiver chain is being in the use of following time of WAN pattern, and second receiver chain is being in ad-hoc mode use of following time.The design's WAN Frequency Division Duplexing (FDD) (FDD) up link band therein is especially favourable in the communication system of sharing with time division duplex (TDD) peer-to-peer communications signaling.This wireless terminal is set to the transmitter chain and second receiver chain FDD up link band and first receiver chain is set to FDD down link band.The design is fit to the quick mode switching between two kinds of operator schemes and may part reusing hardware, these two receiver chains of for example single A/D module service.
A kind of exemplary multi-mode communication device according to various embodiment comprises: be used to generate the transmission signals with a RF frequency transmitter chain, be used to handle first receiver chain of receiving signal and be used to handle second receiver chain of receiving signal with a RF frequency with the 2nd RF frequency.In various embodiments, this multi-mode communication device also comprises mode control module, and it is used for, and which switches between the use of first receiver chain and second receiver chain according to this mode control module select to be used first operator scheme and second operator scheme preset time.First pattern is a WAN operator scheme for example, and second pattern is a peering pattern for example.
A kind ofly operate the illustrative methods that multi-modal communications is equipped with and comprise: tuning transmitter chain has the transmission signals of a RF frequency with generation; Tuning first receiver chain has the signal of receiving of the 2nd RF frequency with processing; And tuning second receiver chain has the signal of receiving of a RF frequency with processing.In various embodiments, this method further comprises: select to use in first operator scheme and second operator scheme which to switch between the use of first receiver chain and second receiver chain according to mode control module in preset time.First pattern is a WAN operator scheme for example, and second pattern is a peering pattern for example.
Though discuss in the superincumbent general introduction of various embodiment, will be appreciated that and all to comprise identical feature by all embodiment, and in above-described these features some to be arranged not be essential, and may be in certain embodiments for desirable.Numerous other features, embodiment and benefit are discussed in the following detailed description.
Accompanying drawing is briefly described
Fig. 1 is the flow chart of the illustrative methods of---for example supporting the wireless communication terminal of peer-to-peer communications---according to various embodiment operate wireless communication terminals.
The illustration that Fig. 2 is the example wireless terminal according to various embodiment---for example supporting the mobile node of peer-to-peer communications---.
Fig. 3 is a flow chart of operating the illustrative methods of base station according to various embodiment.
Fig. 4 is the illustration according to the exemplary base of various embodiment.
Fig. 5 is a flow chart of operating the illustrative methods of the Wireless Telecom Equipment of supporting reciprocity signaling according to various embodiment.
Fig. 6 is the illustration of the example wireless communication device according to the support peer-to-peer communications of various embodiment---for example such as wireless terminals such as mobile nodes---.
The Fig. 7 that comprises the combination of Fig. 7 A and Fig. 7 B is a flow chart of operating the illustrative methods of the Wireless Telecom Equipment of supporting peer-to-peer communications according to various embodiment.
Fig. 8 is the illustration of the example wireless communication device according to the support peer-to-peer communications of various embodiment---for example such as wireless terminals such as mobile nodes---.
Fig. 9 is that diagram comprises example communication system, describes the illustration of an exemplary embodiment that frequency band uses the table of the table of information and the exemplary reciprocity emission power of wireless terminal level information of diagram.
Figure 10 is the illustration according to the example wireless communications of various embodiment.
Figure 11 is a flow chart of operating the illustrative methods of base station according to various embodiment.
Figure 12 is a flow chart of operating the illustrative methods of base station according to various embodiment.
Figure 13 is the illustration according to the exemplary base of various embodiment.
Figure 14 is the illustration that comprises example communication system and frequency band use table according to various embodiment.
Figure 15 is the illustration of the feature of the various embodiment of diagram, and wherein wide area network has base station mourning in silence the period of monitoring and measuring equity noise therein.
Figure 16 is the illustration of the certain characteristics of the various embodiment of diagram, and is the continuity of the example of Figure 15.
Figure 17 is the illustration of exemplary controlling value look-up table of the feature of the various embodiment of diagram.
The flow chart of the illustrative methods that Figure 18 operates the base station according to various embodiment---for example its uplink bandwidth also is used to the base station of reciprocity signaling---.
The flow chart of the illustrative methods that Figure 19 operates the base station according to various embodiment---for example its uplink bandwidth also is used to the base station of reciprocity signaling---.
Figure 20 is that noise W on the longitudinal axis is with respect to the illustration of the plotting curve of the controlling elements α on the transverse axis.
Figure 21 be noise W on the longitudinal axis with respect to the illustration of the plotting curve of the controlling elements α on the transverse axis, varying level is compared in its diagram with Figure 15 other cellular cells disturb and different characteristic curves.
The illustrative methods of the selection of the power control factor α that Figure 22 diagram adjustment is used in various embodiments.
Figure 23 is illustrated in to utilize time division duplex (TDD) for example to carry out the illustration that the example bandwidth among some embodiment of cellular communication is used to wide area network.
Figure 24 is illustrated in to utilize Frequency Division Duplexing (FDD) (FDD) for example to carry out the illustration that the example bandwidth among some embodiment of cellular communication is used to wide area network.
Figure 25 is the illustration according to the exemplary multi-mode radio communications device of various embodiment realizations.
Figure 26 is that diagram is according to the exemplary band of various embodiment and the illustration that shared frequency band uses between wan communication use and peer-to-peer communications use.
Figure 27 comprises according to the flow chart of the illustrative methods of the operation multi-mode radio communications device of various embodiment and based structures information when exemplary.
Figure 28 is a flow chart of operating the illustrative methods of multi-mode radio communications device according to various embodiment.
Figure 29 is a flow chart of operating the illustrative methods of multi-mode radio communications device according to various embodiment.
Figure 30 is a flow chart of operating the illustrative methods of multi-mode radio communications device according to various embodiment.
Describe in detail
Fig. 1 is flow process Figure 100 of the illustrative methods of---for example supporting the wireless communication terminal of peer-to-peer communications---according to various embodiment operate wireless communication terminals.This illustrative methods begins in step 102, is powered on and initialization at this wireless communication terminal.Operation advances to step 104 from beginning step 102.In step 104, this 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 various embodiments, uplink bandwidth comprises that being used for supply equipment transmits a class frequency of signal to the base station, for example comprises that one group of OFDM of uplink tone block transfers frequently.What just be scanned in certain embodiments, has predetermined format from signal of base station.In certain embodiments, what just be scanned is transmitted at the fixed time from signal of base station, for example, during with respect to the employed reproduction in base station based structures or with respect to equity the time the relevant scheduled time of based structures.Among some embodiment that this base station signal is a beacon signal, this beacon signal is to comprise being less than 3 signals of transferring frequently in the OFDM code element therein.
Operation advances to step 106 from step 104, and wherein wireless communication terminal assesses that it has been detected from signal of base station.In certain embodiments, assessment comprises the transmission mode of assessing this base station signal from signal of base station.Step 106 comprises substep 110.In substep 110, wireless communication terminal is measured this power level from signal of base station.In step 112, whether the assessment of this wireless communication terminal determining step 106 satisfies predetermined criterion subsequently.This predetermined criterion is that the level that records of this signal of for example receiving from the base station is lower than predetermined threshold.When Wireless Telecom Equipment transmitted reciprocity signal, this predetermined threshold was selected in certain embodiments corresponding to the expected level to disturbing from the tolerable of this Wireless Telecom Equipment at the place, base station.If satisfy this criterion, then operate advancing to step 114 from step 112; Otherwise operation advances to step 116 from step 112.In step 114, this wireless communication terminal transmits reciprocity signal, and in step 116, this wireless communication terminal is prevented and oneself transmitted reciprocity signal.
Operation advances to step 118 from step 114, wherein this wireless communication terminal monitors and replenishes base station signal, whether detect difference power between and subsequently in step 120, the base station checks at a last additional base station signal and previous detected base station signal---for example detected signal in step 104---.If do not detect difference power, then allow this wireless communication terminal to proceed equity transmission and operation and advance from step 120 and get back to step 118 to monitor additional base station signal; If yet detect difference power, operate from step 120 and advance to step 122.
In step 122, this wireless communication terminal is adjusted emission power of wireless terminal according to above-mentioned difference.Step 122 comprises substep 124,126 and 128.In substep 124, this wireless communication terminal checks whether the power level of an additional base station signal drops among the acceptable scope.If the power level of a last additional base station signal is too high, this may indicate the too close base station of wireless communication terminal and will cause excessive interference from the angle of base station receiver from the equity transmission of this wireless communication terminal, and so thus transmission is not allowed to.Alternatively, if the power level of a last additional base station signal is too low, this may indicate this Wireless Telecom Equipment to move to beyond the scope of serving corresponding to the equity of this base station signal, and this wireless communication terminal may be in corresponding to dissimilar frequency spectrums and use---for example, corresponding to different service suppliers and/or different technology---the zone in, therefore and the transmission of wireless communication terminal is not allowed to.If the power level of an additional base station signal is then operated from substep 124 and is advanced to substep 126 not in acceptable scope on determining in substep 124; Otherwise operation advances to substep 128 from substep 124.
In substep 126, this wireless communication terminal is adjusted its transmitting power according to above-mentioned difference power and is proceeded the equity transmission.Sometimes, adjust transmitting power and comprise according to above-mentioned difference and reduce transmitting power; And other the time, adjust transmitting power according to above-mentioned difference and comprise according to above-mentioned difference and increase transmitting power.For example, if the power level that records that wireless communication terminal detects from signal of base station has increase, then radio communication reduces its reciprocity command transmitting power level.Alternatively, if the power level that records that wireless communication terminal detects from signal of base station has and reduces, then radio communication increases its reciprocity command transmitting power level.And in the time of other other, adjust the wireless communication terminal transmitting power according to above-mentioned difference and comprise transmitted power level is maintained the upper limit level that binds.Operation advances to step 118 from substep 126, monitors the base station signal that replenishes at this wireless communication terminal.
Turn back to substep 128, in substep 128, this wireless communication terminal is adjusted to 0 and stop equity transmission with its transmitting power.Operation advances to step 104 from substep 128, at this this wireless communication terminal scanning base station signal.
Fig. 2 is the example wireless terminal 2300 according to various embodiment---for example support the illustration of the mobile node of 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 various unit can interchange of data and information on bus 2312.Memory 2310 comprises routine 2322 and data/information 2324.The routine 2322 in processor 2306 execute stores 2310 such as CPU and use data/information 2324 in the memory 2310 to control the operation and the implementation method of wireless terminal 2300, for example method of flow process Figure 100 of Fig. 1 for example.
For example the receiver module 2302 of OFDM receiver is coupled to reception antenna 2314, and wireless terminal comes received signal via this antenna.The signal of receiving for example comprises during the scheduled time interval that uplink cell signaling therein is suspended by the base station to just being used for carrying out the broadcast singal that transmits in the frequency band of uplink cell communication by this base station, such as beacon signal.The signal of receiving also comprises the reciprocity signal from other wireless terminals of operating under the peering pattern, above-mentioned these reciprocity signals are to use the base station uplink frequency band to pass on, and at least some are to be communicated during uplink cell communication is for active interval among these reciprocity signals.Receiver module 2302 also comprises the tuner module 2316 that is used to select the frequency band that will receive.
For example the transmitter module 2304 of OFDM transmitter is coupled to transmitting antenna 2318, and wireless terminal 2300 is launched reciprocity signal via this antenna.The reciprocity signal transmission of transmitting set module 2304 is in response to detected assessment from signal of base station.For example, the appearance of predetermined landing signal (for example beacon signal) of---for example a specific high power OFDM transfers or accent group frequently frequently in the OFDM code element---shows that in certain embodiments this up link band also can be used for peer-to-peer communications and uses to detect the coupling predetermined format in the potential cellular uplink bandwidth that just is being scanned.Continue this example, the power level of receiving of the base station broadcast signal in the uplink bandwidth is used for determining the reciprocity transmitting power of admissible maximum by wireless terminal 2300 in certain embodiments.Transmitter module 2304 comprises tuner module 2320, and it is set on the uplink band that is just using the base station in certain embodiments for it.In certain embodiments, tuner module 2320 is configured to transmitter 2304 is tuned to some that use among the group of frequencies of just using in the uplink cell band, but needs not to be whole.For example, the peer-to-peer communications band is the subclass of its corresponding uplink cell communication band in certain embodiments.At least some are to use with the identical air link resources that is used for the cellular uplink signaling and transmit among these reciprocity signals that are launched.In certain embodiments, receiver module 2302 and transmitter module 2304 use the same antenna.In certain embodiments, these two tuner modules (2316,2320) are set to the same frequency band of using for peer-to-peer communications, for example identical uplink cell communication band.
User I/O equipment 2308 comprises for example microphone, keyboard, keypad, camera, switch, loud speaker, display etc.User I/O equipment 2308 allows at least some functions 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.
Data/signal 2324 comprises uplink bandwidth data/information 2344, format information 2350 corresponding to the base station broadcast signal of in uplink bandwidth, broadcasting, reproduction schedule information 2352, tuner configuration information 2356, the base station signal of receiving at the time t0 place 2358, the base station signal of receiving (t0) power level information 2360, the base station signal of receiving at time t1 place 2362, the base station signal of receiving (t1) power level information 2364, power level changes information 2366, the reciprocity signal 2368 that generates, and reciprocity signal transmission power level information 2370.
Uplink bandwidth data/information 2344 comprise sign one group of group of frequencies or more multipacket message (information 2346 of sign first frequency group ..., the information 2348 of sign N group of frequencies).For example, in the different piece of the WAN cellular communication system that uses FDD, utilize different up link FDD bands, and information 2346 sign first up link band and the corresponding first tuner settings, and the different up link bands and corresponding different tuner settings of information 2348 signs.For example, the information 2346 of sign first frequency group comprises that sign is as up link FDD cellular communication band and be used for a group of peer-to-peer communications and adjoin the information that OFDM transfers frequently.
Base station signal of receiving at time t0 2358 and the base station signal 2362 received at time t1 corresponding to by scan module 2330 at the detected broadcast singal of different time.These base station broadcast signals of receiving 2358,2362 are assessed by signal evaluation module 2332 usefulness power measurement module 2342, thereby obtain respectively to receive base station signal t (0) power level 2360, receive base station signal t (1) power level 2364.It is the output of receiving base station signal power level tracking module 2334 that power level changes information 2366, and is controlled the transmitted power level of reciprocity signal as input by power control module 2336.
2332 assessments of signal evaluation module are detected from signal of base station.Signal evaluation module 2332 comprises transmission mode evaluation module 2340 and power measurement module 2342.The transmission mode of transmission mode evaluation module 2340 these base station signals of assessment.For example, attempt will be such as receiving that the information of detected pattern such as detected power level is high relatively in the OFDM code element frequency accent group with the sign expection signal of being stored is complementary for transmission mode evaluation module 2340.In certain embodiments, the frequency accent group sequence that this pattern comprises change---for example jumping in time according to preassigned pattern---.Power measurement module 2342 is measured these power levels from signal of base station, the power level from the beacon signal of base station that has for example transmitted in the up link band.In certain embodiments, beacon signal is to comprise being less than 3 signals of transferring frequently in the OFDM code element.In various embodiments, this wireless terminal continues to assess from the base station detected supplementary signal, for example, measures the power level of the additional broadcast singal of receiving.
Receive the change of receiving power level of the detected broadcast singal from the base station of base station signal power level tracking module 2334 assessment.The transmitted power level of the reciprocity signal that is transmitted by wireless terminal 2300 is controlled in the change of base station broadcast signal power measurement information that power control module 2336 bases are received and/or the base station broadcast signal power level information of receiving.For example, power control module 2336 has difference between the power and adjusts reciprocity transmitting power in response to detecting receiving of the base station broadcast signal received in succession.Sometimes, power control module 2336 reduces reciprocity transmitting power, and this reduces to be in response to the persistent surveillance of base station signaling.
Fig. 3 is the flow process Figure 200 that operates the illustrative methods of base station according to various embodiment.Operation starts from step 202---and powered on and initialization in this base station, and advanced to step 204.
In step 204, the base station is received in the uplink signal that transmits to this base station from cellular communication apparatus in the uplink band during first period.Operation advances to step 206 from step 204.
In step 206, transmitted during second period base station.Step 206 comprises substep 208 and 210, and it can be and be executed in parallel sometimes.In substep 208, the base station uses second frequency band to above-mentioned cellular communication apparatus among at least some different with above-mentioned first frequency band to transmit, and this second frequency band is a downlink band.In substep 210, broadcast singal is transmitted in the base station in above-mentioned uplink band.In certain embodiments, the broadcast singal that transmits in this uplink band is a beacon signal, for example comprises being less than the OFDM beacon signal that 3 OFDM transfer frequently in the OFDM code element.In certain embodiments, the broadcast singal that transmits in this uplink band is the power emission level controling signal.
In certain embodiments, these are being to exist under the situation of the peer-to-peer communications signals that disturb with these uplink signals that transmit in this uplink band to receive during first period from the uplink signal of cellular communication apparatus.Thus, this uplink band also is used to reciprocity signaling simultaneously.
Fig. 4 is the illustration according to the exemplary base 2400 of various embodiment.Exemplary base 2400 is parts of for example WAN cellular communication system and uses FDD up link band and FDD downlink band.Continue this example, broadcast singal such as beacon signal is for example also transmitted to support peer-to-peer communications in base station 2400 in the uplink communication band.In certain embodiments, this base station realize reproduction the time based structures in the uplink communication band, transmit the uplink signalling of hanging the cellular autofluorescence communication equipment during the predetermined interval of broadcast singal wittingly up in base station 2400.In some such embodiment, the relative time that the broadcast singal of distributing to base station 2400 enters the up link band with distribute to time that the wireless terminal cellular signaling that is directed to this base station enters the up link band and compare and be less than or equal 2%.In various embodiments, allowing the uplink communication band to communicate by letter with cellular uplink for reciprocity signaling utilizes concomitantly.In some such embodiment, base station 2400 management are from the interference of these peer devices, and this interference management comprises the transmitted power level of the broadcast singal that change transmits in the uplink communication band.The peer device of receiving this broadcast singal is controlled its transmitted power level according to the power level of receiving that enters the base station broadcast signal of this uplink communication band.
For example the receiver module 2402 of OFDM receiver is coupled to reception antenna 2414, the uplink signal that transmits to base station 2400 from cellular communication apparatus in the receiving uplink frequency band during first period via this antenna base station 2400.From the uplink signal of cellular communication apparatus is being to exist under the situation of the peer-to-peer communications signals that disturb with these uplink signals that transmit in this uplink band to receive during first period.
For example the transmitter module 2404 of OFDM transmitter is coupled to transmitting antenna 2416, use downlink band at least some among these cellular communication apparatus to transmit via this antenna base station 2400, and in above-mentioned uplink band, transmitting broadcast singal during second period, wherein this downlink band and wherein above-mentioned first period different and this second period crossover not with this uplink band.At the down link signal of cellular communication apparatus for example comprise down link take a message the mark signal, assign signal, paging signal and telephone traffic 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 signaling, and the second transmitter submodule 2407 is used for to the broadcast singal of uplink band transmission such as beacon signal.
Use an advantage of the realization of the first and second transmitter submodules 2405,2507 separately to be that the first transmitter submodule 2405 can be provided in down link FDD and be with transmission, and needn't adapt to the UL TDD band of wherein passing on the broadcast singal that is used for the equity support.For example, receiver module 2402 can be tuned to identical UL FDD band with the second transmitter submodule 2407, and first transmitter module 2405 can be tuned to DL FDD band, and the down link cellular communication can continue by uninterrupted mode.Thereby another advantage of this method be can by in the existing base station of supporting cellular communication, insert the second transmitter submodule 2407 together with some software modifications during for example in order to the change up link based structures enter hang-up uplink cell communication during the short interval of uplink band in the base station signaling, make this base station be suitable for utilizing identical up link FDD to bring the support peer-to-peer communications.
I/O interface 2408 is coupled to other network nodes with base station 2400, for example other base stations, AAA node, home agent node and/or internet.I/O interface 2408 allows to use base station 2400 can participate in and use different base station to be connected in the communication session of another cellular communication apparatus a little as its network as the cellular communication apparatus that its network is connected into a little by base station 2400 being coupled to backhaul network.
In certain embodiments, broadcast singal generation module 2424 comprises the down link of taking a message the up link that is used for generating the beacon signal that will transmit to uplink band mark signal generation module 2432 and being used for generating the beacon signal that will transmit to the downlink band mark signal generation module 2434 of taking a message.In various embodiments, the up link mark signal generation module 2432 of taking a message comprises power level module 2436, is used for entering the transmitted power level of the beacon signal of up link band according to the information setting of receiving from reciprocity interference management module 2426.In certain embodiments, the down link mark signal generation module 2434 of taking a message comprises Base Station Identification module 2438, is used for bringing base station identification information into the down link mark signal of taking a message.In certain embodiments, generated to be connected into a little the down link mark signal of taking a message corresponding to the base station be to transmit with identical transmitted power level, and the up link that is generated take a message the mark signal transmitted power level different time be for example as to cause about base station receiver 2402 receive the cellular communication uplink signals interference reciprocity signaling management a part and on the different capacity level, transmit.
Equity interference management module 2426 is managed the reciprocity signaling interference level that is just experiencing at receiver module 2402 places by the operation that the broadcast singal that is included as beacon signal for example etc. and will transmits is provided with power level in uplink band.In certain embodiments, equity interference management module 2426 determines to increase the power level of the broadcast singal that transmits in the up link band when its expectation reduces interference level from reciprocity signaling, and reduce the power level of the broadcast singal that transmits in the up link band when its expectation allows interference level from reciprocity signaling to increase.
2428 controls of cellular downlink module are directed to the generation and the transmission of the down link signal 2450 of cellular device.2430 controls of cellular uplink module recover information from the reception of the uplink signal of cellular communication apparatus with from these signals, thus the uplink signal 2448 that acquisition is received from cellular device.
When data/information 2420 comprises/frequency structural information 2440, broadcast singal format information 2442, the broadcast singal 2444 that will in the up link band, transmit that is generated, the broadcast singal 2446 that will in the down link band, transmit that is generated, receive from the uplink signal 2448 of cellular device and the down link signal 2450 that is directed to cellular device.The time/frequency structural information 2440 comprises reproduction time structure information 2452, uplink band information 2454 and downlink band information 2456.Reproduction time structure information 2452 comprises that the information 2458 and the sign that identify the time interval that is used for uplink signal are used for the information 2460 that confession base station broadcast signal enters the time interval of up link band.The information 2458 of time interval that sign is used for uplink signal comprises, for example sign inserts interval information and sign and is used at least one the information in interval among uplink control signaling and the uplink traffic signaling.Sign enters the time interval of up link band for the base station broadcast signal information 2460 signs are used for transmitting the interval that enters the up link band for the broadcast singals such as for example beacon signal of base station, and normal uplink cell communication signaling is suspended during this.Thus, the base station broadcast signal that enters for example beacon signal of uplink band can not disturb with the cellular uplink signal that is directed to base station 2400, recovers this broadcast singal thereby be convenient to reciprocity Wireless Telecom Equipment.In certain embodiments, base station broadcast is entered the up link band and be less than or equal to 2% with the ratio that the cellular uplink signaling enters the time distribution of up link band.
Broadcast singal format information 2442---for example the information of the form of the sign beacon signal that will transmit in uplink band---comprises that sign for example will be used for representing for example information of 1 to 3 frequency accent group of transferring frequently of this beacon signal.In certain embodiments, jump in time according to predetermined frequency hop sequences corresponding to the frequency accent group of beacon signal, and such information is also included within the information 2442.
For example the broadcast singal that is used for the up link band 2444 that generated such as beacon signal is the output of broadcast singal generation module 2424.For some embodiment, information 2444 is the take a message output of mark signal generation module 2432 of up link.For example the broadcast singal that is used for the down link band 2444 that generated such as beacon signal is the output of broadcast singal generation module 2424.For some embodiment, information 2446 is the take a message output of mark signal generation module 2434 of down link.
Fig. 5 is a flow chart 700 of operating the illustrative methods of the Wireless Telecom Equipment of supporting reciprocity signaling according to various embodiment.Operation starts from step 702---powered on and initialization at this Wireless Telecom Equipment, and advance to step 704---receives first signal from the base station at this this Wireless Telecom Equipment.In certain embodiments, this first signal is to receive at the uplink band that is used for to this base station transmission uplink signal.In some other embodiment, this first signal is to receive in the frequency band as the downlink band of being used by above-mentioned base station, and reciprocity signal transmits in another frequency band.In such embodiments, this another frequency band that is used for reciprocity signaling can be, and be the uplink band that is used for transmitting to this base station uplink signal sometimes.Using uplink band to pass on this way from first signal of base station to have reciprocity Wireless Telecom Equipment can remain on the same frequency band that is used for reciprocity signal and still can monitor this advantage of first signal from the base station.This is convenient to the simple designs and/or low-cost realization of this equity Wireless Telecom Equipment.Yet, can increase complexity at the place, base station, because the base station will be transmitted now in its frequency band that before never had been used for transmitting.
Alternatively, the way of using the down link of base station to bring to pass on first signal is more easy from the angle of base station; Yet reciprocity Wireless Telecom Equipment just requires to increase complexity and/or cost, because it need monitor two frequency bands, for example relates to a plurality of receivers and/or switch related complexity between frequency band.
Operation advances to step 706 from step 704.In step 706, this Wireless Telecom Equipment receives that to this signal carry out to measure---signal power measurement for example.Action row enters in step 708 and 722 one or a plurality of excessively.In certain embodiments, this Wireless Telecom Equipment is supported reciprocity signaling but is not supported to for example as the uplink signalling of the base station of the part of cellular network, and in such embodiments, step 722 is not an option.In certain embodiments, this Wireless Telecom Equipment is supported one of peering pattern and honeycomb operator scheme at any given time, and for preset time, operation can advance to one of step 708 and step 722.In certain embodiments, this Wireless Telecom Equipment is supported concurrent reciprocity signaling and cellular signaling, and operation can advance to step 708 and step 722 from step 706.
Operation advances to step 708 to be used for reciprocity signaling from step 706, advances to step 722 to be used to go to the uplink signal of base station and operate from step 706.In step 708, this Wireless Telecom Equipment is according to the reciprocity transmitting power of the measurement result of first signal being controlled at least some reciprocity signal transmission.Step 708 comprises substep 710 and 712.In substep 710, this Wireless Telecom Equipment uses first function---its at first receive signal power level compared with at be higher than this first receive second of signal power level receive signal power level with reciprocity transmission power limit on lower level---come to determine the maximum reciprocity transmitted power level that transmission is permitted.In substep 712, this Wireless Telecom Equipment is determined actual reciprocity transmitted power level according to the reciprocity transmitted power level of determined maximum with from the reciprocity signal that second peer communications devices receives subsequently.This second peer communications devices is that for example the communication equipment of the operation of flowchart 700 is just carrying out the peer device of peer-to-peer communications session with it.Thus, this equity transmitted power level is received that in certain embodiments base station signal and reciprocity signal influence.This equity signal passes in certain embodiments and/or the reciprocity channel condition information that is used to derive, reciprocity data rate information, reciprocity data overstock among information, equity stand-by period information, noise information, error rate information, service class information and the reciprocity power control information at least one.In certain embodiments, the reciprocity transmitting power of this reality is constrained for and is equal to or less than the reciprocity transmitted power level of determined maximum.In certain embodiments, for at least some circumstances, for example high-priority users or specific service class, the reciprocity transmission level of this reality can surpass sometimes---for example, and override---based on the reciprocity transmitted power level of the determined maximum of the base station signal of receiving.Operation advances to step 714 from step 708.
In step 714, this Wireless Telecom Equipment is being received secondary signal from the base station with the time of the asynchronism(-nization) of receiving above-mentioned first signal.Subsequently in step 716, this Wireless Telecom Equipment second receives that signal is carried out and measures this---for example to this second power measurement of receiving signal.Operation advances to step 718 from step 716, and wherein this Wireless Telecom Equipment receives that from measured second signal power determines that this Wireless Telecom Equipment should be prevented and oneself transmit the peer-to-peer communications signal.Operation advances to step 720 from step 718.In step 720, this Wireless Telecom Equipment is ownly prevented oneself transmission peer-to-peer communications signal after transmitting the peer-to-peer communications signal determining that it should be prevented, until determining that from the power of another signal of base station this Wireless Telecom Equipment is allowed to transmit reciprocity signal from measurement.
Turn back to step 722, in step 722, this Wireless Telecom Equipment is controlled at the transmitting power of the signal that transmitted than on the higher transmitted power level of the above-mentioned reciprocity transmitted power level that at least some reciprocity signals transmission are used.Step 722 comprises substep 724.In substep 724, this Wireless Telecom Equipment uses second function to receive that based on measured first signal power determines the transmitting power of the signal that transmits to this base station when being controlled to the transmitting power of base station, and this second function is different from above-mentioned first function.In certain embodiments, reciprocity transmission signal power level is hanged down 10dB than the transmitted power level of the signal that transmits to the base station at least.
Fig. 6 is the illustration of the example wireless communication device 2900 according to the support peer-to-peer communications of various embodiment---for example such as wireless terminals such as mobile nodes---.Exemplary communication device 2900 can, and use the WAN up link to bring sometimes really and carry out peer-to-peer communications therein.Example wireless communication device 2900 receives from signal of base station, and it uses this signal to determine whether it is allowed to transmit reciprocity signal and/or reciprocity transmission power level information, for example maximum reciprocity transmitted power level in the up link band of base station.
The routine 2918 in processor 2906 execute stores 2910 of CPU and use data/information 2920 in the memory 2910 to control the operation and the implementation method of Wireless Telecom Equipment 2900 for example.
For example the receiver module 2902 of OFDM receiver is coupled to reception antenna 2914, and Wireless Telecom Equipment 2900 receives from signal of base station via this antenna, and this receives that signal is used for determining reciprocity transmission power level information.Receiver module 2902 also receives the peer-to-peer communications signal.In certain embodiments, sometimes, receiver module 2902 receive from just by this Wireless Telecom Equipment as the down link signal that is connected into base station a little in the wide area network---for example assign signal and telephone traffic signal, wherein communication equipment 2900 works as cellular communication apparatus.
For example the transmitter module 2904 of OFDM transmitter is coupled to transmitting antenna 2916, Wireless Telecom Equipment 2900 via this day other Wireless Telecom Equipments of alignment transmit reciprocity signal.In certain embodiments, during some time interval, transmitter module 2904 transmits uplink signal to the base station, and wherein this Wireless Telecom Equipment is in the WAN operator scheme---for example, the honeycomb operator scheme---work down.
User I/O equipment 2908 comprises for example microphone, keyboard, keypad, mouse, camera, switch, loud speaker, display etc.User I/O equipment 2908 allows at least some functions of user input data/information, visit dateout/information and the control Wireless Telecom Equipment 2900 of Wireless Telecom Equipment 2900, for example, attempts initiating the peer-to-peer communications session.
Carrying out from signal of base station that 2926 pairs of measurement modules are received measured.Signal (2942,2944) is represented the input of measurement module 2926, and information (2946,2948) is represented the output of measurement module 2926.In various embodiments, the measurement of measurement module 2926 is signal power measurements.
Equity transmission control module 2941 is controlled transmitting set module 2904 and is prevented oneself transmission peer-to-peer communications signal after definite Wireless Telecom Equipment 2900 should be prevented the reciprocity signal of oneself transmission, be allowed to transmit reciprocity signal until definite Wireless Telecom Equipment 2900.The reciprocity transmission control module 2941 that uses equity transmission licensing status 2950 transmits as equity and enables/forbid controller and work.
Equity transmit power control module 2928 is controlled the reciprocity transmitting power of at least some reciprocity signal transmission according to the measurement result of the base station signal of receiving.Equity transmit power control module 2928 comprises that maximum reciprocity transmitted power level determines that submodule 2930, actual reciprocity transmitted power level determine the submodule 2932 and first function 2934.Equity transmit power control module 2928 uses first function 2934---its at first receive signal power level compared with at be higher than this first receive second of signal power level receive signal power level with reciprocity transmission power limit on lower level.In various embodiments, reciprocity transmit power control module 2928 in response to higher record receive signal power level with reciprocity transmission power limit on lower level.
Maximum reciprocity transmitted power level submodule 2930 uses first function 2934 to determine maximum reciprocity transmitted power level.Actual reciprocity transmitted power level submodule 2932 is determined actual reciprocity signal transmission power level according to the reciprocity transmitted power level of above-mentioned maximum with from the reciprocity signal that second peer communications devices receives.In various embodiments, the reciprocity transmitted power level of the submodule 2932 determined reality of control is less than or equal to maximum reciprocity transmitted power level.
The transmitting power of the signal that wide area network transmit power control module 2936 will transmit to the base station is controlled at than on the higher transmitted power level of the above-mentioned reciprocity transmitted power level that reciprocity signal transmission is used at least some.WAN transmit power control module 2936 comprises second function 2938 that is different from first function 2934.The control of the transmitting power of the signal that transmit wide area network transmit power control module 2936 subtend base stations comprise use second function 2938 that is different from first function 2934 with based on measured from signal of base station receive that power level is determined will be to the transmitted power level of the signal of this base station transmission.
For example, receive that base station signal N 2944 is measured to obtain the signal N metrical information 2948 to reciprocity transmit power control module 2928 and 2936 both inputs of WAN transmit power control module by measurement module 2926.Peer modules 2928 is used first function 2934 to handle input 2848 and is obtained the reciprocity transmitted power level 2952 of determined maximum, and WAN module 2936 uses second function 2938 to handle identical input 2948 and obtain determined maximum WAN transmitted power level 2956---and it is the level higher than the reciprocity transmitted power level of determined maximum 2952.
In various embodiments, reciprocity transmission signal power level is hanged down 10dB than the transmitted power level of the signal that transmits to the base station at least.For example, for the identical measured value of base station signal, the reciprocity transmitted power level 2952 of determined maximum is at least than determined maximum WAN transmitted power level 2956 low 10dB.As another example, in certain embodiments, if wireless terminal is positioned at place, a location and has determined reciprocity transmission power level information and WAN transmission power level information based on the identical base station signal measurement of receiving, the reciprocity transmitted power level 2954 of then determined reality is at least than determined actual WAN transmitted power level 2958 low 10dB.
Data/information 2920 comprise a plurality of receive from the base station measured and be used for determining the signal of transmission power level information (receive base station signal 12942 ..., receive base station signal N 2944), a plurality of corresponding respectively signal measurement information (signal 1 metrical information 2946 ..., signal N metrical information 2948).Data/information 2920 also comprises the indication Wireless Telecom Equipment 2900 current equity transmission licensing status information 2950 that whether are allowed to transmit reciprocity signal.Data/information 2920 also comprises as the reciprocity transmitted power level 2952 of the determined maximum of the output of submodule 2930 and as the reciprocity transmitted power level 2954 of determined reality of the output of submodule 2932.
Time base/frequency structure the information 2960 that is included 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 be accent group information frequently, downlink band information 2964---for example, WAN downlink bandwidth information, WAN downlink carrier information and down link WAN be accent group information frequently, and the information 2966 that identifies the location of measured base station signal.In this exemplary embodiment, the WAN uplink band that the peer-to-peer communications signaling uses the base station just using, wherein these reciprocity signals serve as the interference to the WAN uplink signal that is directed to this base station.The signal that measurement is received by Wireless Telecom Equipment 2900, and utilize this to measure the reciprocity transmitted power level of controlling Wireless Telecom Equipment; In certain embodiments, this signal is passed in WAN up link band, and in other embodiments, this signal is passed in WAN down link band.Which WAN band of information 2966 sign carries this signal, and identifies the information more specifically corresponding to this signal in certain embodiments, for example, and the point during reproduction in the based structures and/or be used to identify the concrete frequency adjusting information of this signal.
Support at Wireless Telecom Equipment 2900 among the various embodiment of WAN communications such as for example cellular communication, data/information 2920 also comprises determined maximum WAN transmission power level information 2956 and determined actual WAN transmission power level information 2958, and they are the output of WAN transmit power control module 2936.
The Fig. 7 that comprises the combination of Fig. 7 A and Fig. 7 B is a flow chart 800 of operating the illustrative methods of the Wireless Telecom Equipment of supporting peer-to-peer communications according to various embodiment.Operation starts from step 802---powered on and initialization at this Wireless Telecom Equipment, and advance to step 804---receives first signal from the base station at this this Wireless Telecom Equipment.In certain embodiments, this first signal is to receive at the uplink band that is used for to this base station transmission uplink signal.In some other embodiment, this first signal is to receive in the frequency band as the downlink band of being used by above-mentioned base station, and reciprocity signal transmits in another frequency band.In such embodiments, this another frequency band that is used for reciprocity signaling can be, and be the uplink band that is used for transmitting to this base station uplink signal sometimes.
Operation advances to step 806 from step 804.In step 806, this Wireless Telecom Equipment receives that to this signal carry out to measure---signal power measurement for example.Operation advances to step 808 from step 806.
In step 808, this Wireless Telecom Equipment is determined the transmitted power level Control Parameter.In one exemplary embodiment, step 808 comprises substep 810 and 812.In another exemplary embodiment, step 808 comprises substep 814 and 816.In another exemplary embodiment, step 808 comprises substep 814 and 818.
In substep 810, this wireless communications device accesses comprises the memory of storing corresponding to the transmitted power level Control Parameter of different service class, and subsequently in substep 812, this Wireless Telecom Equipment detect storing corresponding to the transmitting power of the corresponding service class of this Wireless Telecom Equipment.
In substep 814, this Wireless Telecom Equipment is from recovering controlling value by this Wireless Telecom Equipment from the signal that above-mentioned base station receives.In certain embodiments, be first signal of step 804, receiving from its this signal that recovers controlling value.Operation advances to one of substep 816 and 818 from substep 814.In substep 816, this Wireless Telecom Equipment is used as the transmitted power level Control Parameter with this controlling value that recovers.Alternatively, in substep 818, this Wireless Telecom Equipment calculates the transmitted power level Control Parameter based on this controlling value that recovers with corresponding to the service class of this wireless terminal.
Operation advances to step 820 from step 808.In step 820, this Wireless Telecom Equipment is controlled the reciprocity transmitting power of at least some equity transmission according to the measurement result of first signal, wherein control reciprocity transmitting power and comprise according to first function and control reciprocity transmitting power, and wherein control reciprocity transmitting power and be included in this first function and also use above-mentioned determined transmitted power level Control Parameter the power level except that above-mentioned receiving of recording according to first function.Operation advances to step 824 from step 820 via connected node A 822.
In step 824, this Wireless Telecom Equipment is being received secondary signal from the base station with the time of the asynchronism(-nization) of receiving above-mentioned first signal.Subsequently in step 826, this Wireless Telecom Equipment second receives that signal is carried out and measures this---for example to this second power measurement of receiving signal.Operation advances to step 828 from step 826, and wherein this Wireless Telecom Equipment receives that from second the power that records of signal determines that this Wireless Telecom Equipment should be prevented and oneself transmit the peer-to-peer communications signal.Operation advances to step 830 from step 828.In step 830, this Wireless Telecom Equipment is ownly prevented oneself transmission peer-to-peer communications signal after transmitting the peer-to-peer communications signal determining that it should be prevented, until determining that from the power of another signal of base station this Wireless Telecom Equipment is allowed to transmit reciprocity signal from measurement.
Fig. 8 is the illustration of the example wireless communication device 3000 according to the support peer-to-peer communications of various embodiment---for example such as wireless terminals such as mobile nodes---.Exemplary communication device 3000 can, and use the WAN up link to bring sometimes really and carry out peer-to-peer communications therein.Example wireless communication device 3000 receives from signal of base station, and it uses this signal to determine whether it is allowed to transmit reciprocity signal and/or determines reciprocity transmission power level information, for example maximum reciprocity transmitted power level in the up link band of base station.
The routine 3018 in processor 3006 execute stores 3010 of CPU and use data/information 3020 in the memory 3010 to control the operation and the implementation method of wireless terminal 3000, for example method of the flow chart 800 of Fig. 7 for example.
For example the receiver module 3002 of OFDM receiver is coupled to reception antenna 3014, and Wireless Telecom Equipment 3000 receives from signal of base station via this antenna, and this receives that signal is used for determining reciprocity transmission power level information.Receiver module 3002 also receives the peer-to-peer communications signal.For example the transmitter module 3004 of OFDM transmitter is coupled to transmitting antenna 3016, Wireless Telecom Equipment 3000 via this day other Wireless Telecom Equipments of alignment transmit reciprocity signal.
User I/O equipment 3008 comprises for example microphone, keyboard, keypad, mouse, camera, switch, loud speaker, display etc.User I/O equipment 3008 allows at least some functions of user input data/information, visit dateout/information and the control Wireless Telecom Equipment 3000 of Wireless Telecom Equipment 3000, for example, attempts initiating the peer-to-peer communications session.
Carrying out from signal of base station that 3026 pairs of measurement modules are received measured.Receive that base station signal 1 3044 represents the input of measurement module 3026, and signal 1 metrical information 3046 is represented the output of measurement module 3026.In various embodiments, the measurement of measurement module 3026 is signal power measurements.
Power level Control Parameter determination module 3028 is determined the transmitted power level Control Parameter.In certain embodiments, power level Control Parameter determination module 3028 is arranged to the transmitted power level Control Parameter Control Parameter 3048 that detected.In certain embodiments, power level Control Parameter determination module 3028 is determined the transmitted power level Control Parameter according to the Control Parameter 3048 that is detected.In certain embodiments, the Control Parameter that power level Control Parameter determination module 3028 is arranged to the transmitted power level Control Parameter to recover, the Control Parameter 3050 that for example decodes.In certain embodiments, power level Control Parameter determination module 3028 is determined the transmitted power level Control Parameter according to the Control Parameter---Control Parameter 3050 that for example decodes---that recovers.In certain embodiments, power level Control Parameter determination module 3028 is determined the transmitted power level Control Parameter according to the service class 3052 that identifies.In certain embodiments, power level Control Parameter determination module 3028 is determined the transmitted power level Control Parameter according to Control Parameter 3048 that is detected and the Control Parameter---Control Parameter 3050 that for example decodes---that recovers.In certain embodiments, power level Control Parameter determination module 3028 is by comprising following i) and operation one of ii) determine transmitted power level Control Parameter, wherein i) value that will recover is as the transmitted power level Control Parameter and ii) calculate the transmitted power level Control Parameter based on the controlling value that recovers with corresponding to the service class of this wireless terminal.
Service class identification module 3034 signs are corresponding to the current service rank of Wireless Telecom Equipment 3000.For example, some different users of communication equipment 3000 are in certain embodiments corresponding to different service class, for example emergency user, the associated user of government, service supplier user, 1 grade of corporate users, 2 grades of corporate users, 1 grade of private user, 2 grades of private users etc.In other embodiments, different service class can be considered corresponding to the data that will pass on and/or the different stand-by period of dissimilar communication equipments, the dissimilar data that will pass on, different amounts.The current service rank that identifies is appointment in institute's identification service rank 3052.
Power level Control Parameter determination module 3028 comprises retrieval module 3030 and Control Parameter recovery module 3032.Retrieval module 3030 retrieve stored corresponding to the transmitted power level Control Parameter of Wireless Telecom Equipment 3000 corresponding service class.Thus, retrieval module 3030 is used as input with institute's identification service rank 3052, the Control Parameter that the access services level is clipped to power level Control Parameter map information 3060 and obtains to be associated with this input service class.The Control Parameter 3048 that detects is the output of retrieval module 3030.
Control Parameter is recovered module 3032 and is recovered controlling value from the signal that is received from the base station by communication equipment 3000.In certain embodiments, this controlling value is---for example, to receive base station signal 1 3044---from measurement module 3026 measured same signals to recover.The Control Parameter 3050 that decodes is the output that Control Parameter is recovered module 3032.In certain embodiments, this controlling value that recovers is the interference level indicator value.
Equity transmit power control module 3036 is controlled the reciprocity transmitting power of at least some reciprocity signal transmission according to the measurement result of receiving base station signal.Equity transmit power control module 3036 comprises that maximum reciprocity transmitted power level determines that submodule 3038, actual reciprocity transmitted power level determine the submodule 3040 and first function 3042.
Maximum reciprocity transmitted power level submodule 3038 uses first function 3042 to determine maximum reciprocity transmitted power level.Actual reciprocity transmitted power level submodule 3040 is determined actual reciprocity signal transmission power level according to the reciprocity transmitted power level of above-mentioned maximum with from the reciprocity signal that second peer communications devices receives.In various embodiments, the reciprocity transmitted power level of the submodule 3040 determined reality of control is less than or equal to maximum reciprocity transmitted power level.
Equity transmitted power level control module 3036 is when determining reciprocity transmitted power level---for example, when the reciprocity transmitted power level 3056 of definite determined maximum---except that determined transmitted power level Control Parameter 3054 is also used in for example measured the receiving from signal 1 metrical information 3046 power level.In certain embodiments, some or all in the function of power level Control Parameter determination module 3028 are included as the part of reciprocity transmit power control module 3036.
Data/information 3020 comprises the signal of receiving from the base station---receive base station signal 1 3044, its measured module 3026 is measured to obtain to be used for determining signal 1 metrical information 3046 of transmission power level information.Data/information 3020 comprises that also transmitted power level Control Parameter 3054, the reciprocity transmitted power level 3056 of determined maximum, the reciprocity transmitted power level 3058 of determined reality, service class are to power level Control Parameter map information 3060 and timebase frequency structural information 3070.In certain embodiments, data/information 3020 comprise the service class 3052 that identifies, the Control Parameter 3048 that detects and the Control Parameter 3050 that decodes among one or more.
The Control Parameter 3048 that detects be retrieval module 3030 output and corresponding to service class to the control parameter value of power contorl parameters map information 3060 (control parameter value 1 3066 ..., control parameter value M 3068) one of.The Control Parameter 3050 that decodes is that Control Parameter is recovered the output of module 3032 and the information that representative recovers from the base station signal of receiving.In certain embodiments, be the same base signal that carries out power measurement from its base station signal of receiving that recovers this information---for example, receive base station signal 13044.In certain embodiments, this controlling value that recovers is the interference level indicator value.
The service class 3052 that identifies is the output of service class identification module 3034, and is used as the input of retrieval module 3030.The service class 3052 that use identifies is selected corresponding control parameter value.For example, if the service class that identifies 3052 indication service class M 3064, then retrieval module 3030 detects control parameter value M 3068, and it is stored in and detects in the Control Parameter 3048.
Transmitted power level Control Parameter 3054 is the output of power level Control Parameter determination module 3028.Transmitted power level Control Parameter 3054 is to determine according among the service class 3052, the Control Parameter 3048 that detects that identify and the Control Parameter 3050 that decodes one or more.Transmitted power level Control Parameter 3054 is used as the input of reciprocity transmit power control module 3036.
The output that the reciprocity transmitted power level 3056 of determined maximum is maximum reciprocity transmitted power level submodules 3038, and the reciprocity transmitted power level 3058 of determined reality is the output that actual reciprocity transmitted power level is determined submodule 3040.
Service class to power level Control Parameter map information 3060 comprise a plurality of service class (service class 13062 ..., service class M 3064) and the control parameter value of a plurality of correspondences (control parameter value 13066 ..., control parameter value M 3068).
Time base/frequency structure the information 3070 that is included 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 be accent group information frequently, downlink band information 3074---for example, WAN downlink bandwidth information, WAN downlink carrier information and down link WAN be accent group information frequently, and the information 3076 that identifies the location of measured and/or the base station signal that decodes.In this exemplary embodiment, the WAN uplink band that the peer-to-peer communications signaling uses the base station just using, wherein these reciprocity signals serve as the interference to the WAN uplink signal that is directed to this base station.The reciprocity transmitted power level that the signal that measurement is received by Wireless Telecom Equipment 3000 and this measurement are used to control Wireless Telecom Equipment.This base station signal of receiving is passed in WAN up link band in certain embodiments, and in other embodiments, this signal is passed in WAN down link band.In certain embodiments, the signal that is received and decoded with recovering information---for example, recovering to disturb indicator value---by Wireless Telecom Equipment 3000 also is used to control the reciprocity transmitted power level of Wireless Telecom Equipment.In certain embodiments, the same base signal that is used for power measurement is the signal that decodes that recovers this information from it.In some other embodiment, two different signals of receiving from the base station are arranged, the receiving that power level is measured and utilize an of signal, and another signal is passed on encoded power control information---for example encoded interference indicator value.For example recover the base station signal of information such as interference level indicator value from it and WAN up link band, pass in certain embodiments, and in other embodiments, this signal is passed in WAN down link band.Which WAN band of information 3076 signs carries measured base station signal and which WAN band carries the base station signal that is used for the information recovery.In certain embodiments, information 3076 sign is corresponding to the information more specifically of these one or more signals, for example, and the point during reproduction in the based structures and/or be used to identify the concrete frequency adjusting information of these one or more signals.
Fig. 9 is that diagram comprises communication system 302, describes the illustration 300 of an exemplary embodiment that frequency band uses the table 306 of the table 304 of information and the exemplary reciprocity emission power of wireless terminal level information of diagram.Example communication system 302 comprises the base station 308 that has by the corresponding cellular coverage of cellular cell 310 representatives.Base station 308 is coupled to other network nodes via network links 309 such as for example optical fiber links, for example other base stations, router, AAA node, home agent node, Control Node etc., and/or internet.In communication system 302, also have a plurality of supporting cellular wireless terminal in communication (WT 1312 ..., WT N 314).Honeycomb WT (312,314) is coupled to base station 308 via Radio Link (316,318) respectively.
In communication system 302, also has the wireless terminal (WT 1 ', WT 2 ' 328, WT 3 ', WT 4 ' 340) of a plurality of support peer-to-peer communicationss.WT1 ' is illustrated as being on two time points, and is represented as at element on the time t0 324 and the element on time t1 326.WT 1 ' motion is indicated by arrow 334.WT3 ' is illustrated as being on two time points, and is represented as at element on the time t0 336 and the element on time t1 338.WT 3 ' motion is indicated by arrow 346.Peer-to-peer communications between WT1 ' and the WT2 ' 328 is indicated by arrow 330 and 332.Peer-to-peer communications between WT3 ' and the WT4 ' 340 is indicated by arrow 342 and 344.
Beacon signal 320 is transmitted in the base station in this up link band.This beacon signal is detected and measures by these reciprocity wireless terminals.The equity wireless terminal uses receives that to this power measurement of beacon signal determines whether this wireless terminal is allowed to transmit reciprocity signal and control transmitted power level when transmission is allowed to, for example, and maximum transmit power level.Empty arrow circle 322 around the base station 308 is indicated exemplary reciprocity confined area, is constrained at this reciprocity wireless terminal and can not transmits signal.In the close zone of base station 308, from the transmission on the level that uses in the reciprocity signaling of being in of reciprocity wireless terminal from attempt to recover and decoding come comfortable honeycomb mode down the wireless terminal of operation (312 ... 314) the angle of base station receiver of uplink signal caused excessive interference, and the transmission of reciprocity thus wireless terminal is not allowed.
Now band information table 304 will be described.First row 348 indication frequency band A are used as for transmit from the base station, be intended to the cellular downlink band used by the signal that cellular radio terminals receives.Secondary series 350 indication frequency band B are used as: (i) for transmit from cellular radio terminals, be intended to the cellular uplink band used by the signal that the base station receives; (ii) be used to pass on transmit by the base station and be intended to receive and the frequency band of the reciprocity beacon signal used by reciprocity wireless terminal; And (iii) be intended to be used for transmit and the reciprocity frequency band of the signal that is intended to receive by reciprocity wireless terminal from reciprocity wireless terminal.
Reciprocity wireless terminal power information table 306 will be described now.The exemplary reciprocity wireless terminal that first row 352 sign is just being described (WT 1 ', WT 2 ', WT 3 ', WT 4 ').Secondary series 354 identified time point, perhaps t0 or t1.The 3rd row 356 sign is corresponding to the wireless terminal in the delegation, corresponding to the transmission power level information with the time indicated in the delegation.To time t1, the transmitted power level of WT1 ' increases from time t0 in the information indication of table 306.Can observe WT1 ' at this moment between during move away base station 308, and from the angle of WT1 ' can expect beacon signal 320 record power level at this moment between during reduce.Can also observe WT 1 ' at this moment between during remain on outside the restricted area 322.The information of table 306 is also indicated from time t1 to time t0, and the transmitted power level of WT3 ' reduces.Can observe WT3 ' at this moment between during 308 move towards the base station, and from the angle of WT3 ' can expect beacon signal 320 record power level at this moment between during increase.Can also observe WT3 ' at this moment between during remain on outside the restricted area 322.Power level described in the table 306 can be to the admissible maximum transmit power level of this wireless terminal.Alternatively, the power level described in the table 306 can be actual transmitted 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 illustration according to the example wireless communications 400 of various embodiment.Example wireless communications 400 comprise at least one base station 402, a plurality of support peer-to-peer communicationss wireless terminal (wireless terminal 1404 ..., wireless terminal N 410), the wireless terminal of a plurality of support wide area network signalings (wireless terminal 2406 ..., wireless terminal n 412) and the wireless terminal of reciprocity signaling of a plurality of support and wide area network signaling (wireless terminal 3408 ..., wireless terminal M 414).
The power of---for example from the base station 402---signal received of receiving that signal power measurement module 422 measures from the base station.Equity signal transmission power control module 424 according to first function as controlling reciprocity signal transmission power level from the function that records power of signal of base station.In various embodiments, this equity signal transmission power level is the maximum reciprocity signal transmission power level of being permitted.Difference update module 426 receives upgrades first function from the difference indicator value of base stations such as for example base station 402 and based on the indicator value that this is received.In certain embodiments, this difference is a scheduled volume, and the memory 428 of the predetermined difference value of storage indicator and correspondence is accessed, and the value of being visited is used by first function.
Figure 11 is a flow chart 500 of operating the illustrative methods of base station according to various embodiment.The operating in step 502 beginning and advance to step 504 of this illustrative methods.In step 504, base station stored interference budget information.Operation advances to step 506 and step 508 from step 504.
As in the step 508 that is performed on the basis of just carrying out, the operation base station maintain is adjoined base station synchronization with at least one, thus keep the uplink null period adjoin between the base station synchronous.In various embodiments, the uplink null period is wherein to have at least sub-fraction not to be used to transmit to the base station period of uplink signal wittingly in the employed uplink bandwidth in base station.
Turn back to step 506, in step 506, ambient interferences is measured in the base station during the uplink null period.In step 510, the first up-link transmission power controlling value is determined according to measured ambient interferences in the base station subsequently.Step 510 comprises substep 512.In substep 512, the base station is used the interference budget information of storing to unite above-mentioned measured ambient interferences and is generated this first up-link transmission power controlling value.Substep 512 comprises substep 514,516,518 and 520.In substep 514, the base station determines whether measured ambient interferences surpasses by the indicated interference budget limit of the interference budget information of storing.If surpassed this budget limit, then operated from substep 514 and advance to substep 516; Otherwise operation advances to substep 518 from substep 514.
In substep 516, previous up-link transmission power controlling value is revised in the base station, and modified transmitting power controlling value limits reciprocity transmitted power level more than previous up-link transmission power controlling value.Turn back to substep 518, in substep 518, it is above-mentioned by the indicated interference budget limit of the interference budget information of storing that the base station determines whether measured ambient interferences is lower than, for example, and low at least predetermined threshold value value.If determine that in substep 518 thereby measured ambient interferences is the test philosophy that satisfied that is lower than this interference budget limit, operation just advances to substep 520 from substep 518.In substep 520, previous up-link transmission power controlling value is revised in the base station, and modified transmitting power controlling value increases to reciprocity transmitted power level on the higher level of the level controlled than previous transmitting power controlling value.
Operation advances to step 522 from step 510, and wherein the determined first up-link transmission power controlling value is transmitted in the base station.
Figure 12 is a flow chart 600 of operating the illustrative methods of base station according to various embodiment.The operating in step 602 beginning and advance to step 604 of this illustrative methods.In step 604, base station stored interference budget information.Operation advances to step 606 and step 608 from step 604.
As in the step 608 that is performed on the basis of just carrying out, the operation base station maintain is adjoined base station synchronization with at least one, thus keep the uplink null period adjoin between the base station synchronous.In various embodiments, the uplink null period is wherein to have at least sub-fraction not to be used to transmit to the base station period of uplink signal wittingly in the employed uplink bandwidth in base station.
Turn back to step 606, in step 606, ambient interferences is measured in the base station during the first uplink null period.In step 610, the first up-link transmission power controlling value is determined according to measured ambient interferences in the base station subsequently.Operation advances to step 612 from step 610.In step 612, the determined first up-link transmission power controlling value is transmitted in the base station.Operation advances to step 614 from step 612.
In step 614, ambient interferences is measured in the base station during the second uplink null period, and subsequently in step 616, the base station is from determining the change of measured ambient interferences corresponding to the measurement of the first uplink null period and the second uplink null period.Operation advances to step 618 from step 616.
In step 618, the base station changes definite second up-link transmission power controlling value according to measured ambient interferences and the determined ambient interferences that records corresponding to the second uplink null period, and in step 620, the determined second up-link transmission power controlling value is transmitted in the base station subsequently.Operation advances to step 622 from step 620.
In step 622, ambient interferences is measured in the base station during the 3rd uplink null period, and in step 624, the change of base station from determining to record ambient interferences corresponding to the measurement of the second uplink null period and the 3rd uplink null period.Operation advances to step 626 from step 624, and wherein the poor of the first up-link transmission power controlling value and the second up-link transmission power controlling value determined in the base station.Operation advances to step 628 from step 626.
In step 628, the base station records the change of ambient interferences between the period according to the measured ambient interferences corresponding to the 3rd uplink null period, the determined second and the 3rd uplink null and the difference of determined two power control values that before transmitted is determined the 3rd up-link transmission power controlling value.Operation advances to step 630 from step 628, and wherein determined the 3rd up-link transmission power controlling value is transmitted in the base station.
Figure 13 is the illustration according to the exemplary base 2800 of various embodiment.Exemplary base 2800 management are disturbed from the reception of the reciprocity wireless terminal that transmits in the identical air link resources of using for its wide area network uplink communication.Exemplary base 2800 is determined and transmit the up-link power control signal that reciprocity wireless terminal utilizes when being determined its transmitted power level.In certain embodiments, the up-link power control signal that transmitted of base station 2800 is also by this base station being connected into a little as network and being used for controlling transmitted power level to the wireless terminal of this base station transmission uplink signal.
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 various unit can interchange of data and information on bus 2812.
The uplink signal that for example receiver module 2802 of OFDM receiver is coupled to reception antenna 2814, and base station 2800 receives from wireless terminal via this antenna---for example work under honeycomb mode and base station 2800 is connected into a little wireless terminal as network---.Receiver module 2802 also receives near the interference of the peer communications devices of comfortable local operation.In certain embodiments, receiver module 2802 also receives from the interference that comes from the uplink signalling that adjoins the cellular device in the cellular cell.
For example the transmitter module 2804 of OFDM transmitter is coupled to transmitting antenna 2816, base station 2800 via this day alignment base station 2800 is connected into a little wireless terminal transmission down link signal as network.Transmitter module 2804 also transmits and will be used for controlling the up-link transmission power controlling value signal of its transmitted power level by reciprocity wireless terminal, and these reciprocity wireless terminals are used for the up link band of this base station reciprocity signaling and have caused interference from the angle of base station receiver module 2802 thus.
Memory 2810 comprises routine 2818 and data/information 2820.Processor 2806---for example CPU---in the execute store 2810 routine 2818 and use 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 wide area network synchronization module 2828 and interference type separation module 2832.
Communications routines 2822 realizes base station 2800 employed various communication protocols.Interference measurement module 2824 is measured ambient interferences during the uplink null period.Wireless terminal power control module 2826 is determined the up-link transmission power controlling value according to recording ambient interferences.In various embodiments, wireless terminal power control module 2826 is used the interference budget information of storing to unite to record ambient interferences and is determined the up-link power controlling value, thus generation up-link transmission power controlling value.Wireless terminal power control signal transport module 2830 controls transmitter module 2804 and transmits the up-link transmission power control signal that is generated, for example first up-link transmission power controlling value 2850.In certain embodiments, control module 2830 controls transmitter module 2804 according to the reproduction scheduling and transmits the up-link transmission power control signal that is generated.In certain embodiments, control module 2830 is come control transmission according to interference level information.In certain embodiments, wireless terminal power control module 2826 is determined the up-link transmission power controlling value according to recording ambient interferences and recording ambient interferences than the change of previous measurement.In certain embodiments, wireless terminal power control module 2826 is determined the up-link transmission power controlling value according to the difference of previous two power control values that transmit.
In certain embodiments, wireless terminal power control module 2826 records the operation of revising previous up-link transmission power controlling value when ambient interferences surpasses by the indicated interference budget limit of the interference budget information of storing and determines the up-link transmission power controlling value by being included in, and modified transmitting power controlling value limits reciprocity transmitted power level more than this previous up-link transmission power controlling value.In certain embodiments, wireless terminal power control module 2826 records the operation of revising previous up-link transmission power controlling value when ambient interferences is lower than by the indicated interference budget limit of the interference budget information of storing and determines the up-link transmission power controlling value by being included in, modified transmitting power controlling value with reciprocity transmitted power level increase to than this previous up-link transmission power controlling value controlled higher.In various embodiments, changing to more high level just carries out when recording interference at least than the low predetermined threshold of the above-mentioned interference budget limit.
Thus, the value of this up-link transmission power controlling value is used for regulating the transmitted power level of peer-to-peer communications by base station 2800, thereby influences the interference that aligns the uplink signal that is directed to base station 2800.
Wide area network synchronization module 2828 is used to keep with at least one and adjoins base station synchronization, is adjoining between the base station synchronously thereby keep the uplink null period.
Interference type separation module 2832 is used to obtain the estimation to the amount of the uplink channel interference contribution that stems from peer-to-peer communications.In certain embodiments, interference type separation module 2832 is input controlled change level in the up-link transmission power controlling value wittingly, and calculate during the empty period of subsequent uplink in interferometry viewed effect with as equity is disturbed and other interference sources---for example, not about synchronous cellular communication apparatus---the part that distinguishes of adjoining transmission uplink signal in the cellular cell in base station 2800.
When data/information 2820 comprises/frequency structural information 2834, the interference budget information 2840 of storing, a plurality of interferometry information sets (uplink interference measurements information 1 2846 ..., uplink interference measurements information N2848) and a plurality of up-link transmission power controlling value that generates (the first up-link transmission power controlling value 2850 ..., M up-link transmission power controlling value 2852).
Shi Ji/frequency structure information 2834 comprises reproduction time structure information 2836.Reproduction time structure information 2836 comprises the information 2838 that identifies the uplink null period.In certain embodiments, the uplink null period is corresponding to wherein having at least sub-fraction not to be used to transmit to this base station the period of uplink signal wittingly in the employed uplink bandwidth in this base station.In certain embodiments, the uplink null period be during with base station 2800 as the wireless terminal that is connected into a little---for example, cellular communication apparatus---prevent own period wittingly to base station 2800 transmission uplink signals.During the section, reciprocity wireless terminal signaling continues to use uplink band at this moment.Thus, ambient interferences is measured during the section at this moment in base station 2800.Synchronously made that with this uplink null period is concurrent if adjoin the base station, then the noise that records during these periods may be associated with reciprocity signaling.Yet,, and use identical up link band, the interference that during such uplink null period, records just to comprise from reciprocity wireless terminal with corresponding to the interference of the cellular communication apparatus that adjoins the base station if adjoin the base station not by synchronously.
The interference budget information 2840 of storing comprises ambient interferences limit information 2842 and threshold information 2844.
Figure 14 is the illustration 900 that comprises example communication system 902 and frequency band use table 904 according to various embodiment.In example communication system 900, wide area network and peer-to-peer communications shared bandwidth.In various embodiments, this wide area network relates to corresponding to the system that has disposed and peer capabilities and increasing and/or upgrade feature.In certain embodiments, originally example communication system 902 is deployed and comprises WAN and peer capabilities.Frequency band uses table 904 to indicate can be corresponding to two class embodiment of example system 902.At first kind embodiment---be among the category-A embodiment, wide area network uses the movable shared bandwidth of Frequency Division Duplexing (FDD) (FDD) and wide area network fdd uplink band and peer-to-peer communications.At the second class embodiment---be among the category-B embodiment, wide area network is to the time division duplex (TDD) of up link and down link use same frequency band, and wide area network and the movable uplink time slot of sharing of peer-to-peer communications.Thus, in this two class embodiment, uplink signalling from wan communication equipment can disturb the reception of peer communications devices to the peer-to-peer communications signal, and the reception of the wide area network uplink signal at the peer-to-peer communications signal that leads between peer communications devices meeting interference base station place.
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 the purpose that illustrates, consider that wide area network wireless terminal 908 transmits uplink signal 914 to base station 906.Base station 906 is received this signal and measured the signal of receiving is P
C1From the angle of reciprocity wireless terminal 2 912, signal 914 is regarded as the interference 916 from wide area network wireless terminal 908.Consider that now the first reciprocity wireless terminal 910 transmits reciprocity signal 918 to reciprocity wireless terminal 2 912.906 the angle from the base station, signal 918 are regarded as the interference 920 from the first reciprocity wireless terminal 910.Base station 906 receives that the signal that this interference and measurement are received is P
P1
According to various embodiment, give wide area system with priority, and disturb in the management of place, base station.For example, choosing power control value α reaches such as (P
P1/ P
C1)≤targets such as α.In some such embodiment, α be such as-10dB ,-20dB or-value the 30dB.Cause receiving relevant interference about a reciprocity wireless terminal to describe although be in this example with base station corresponding to the wireless terminal uplink signalling of a wide area network, but will understand, can have and the reciprocity wireless terminal that truly has a plurality of transmission and interference is made contributions sometimes, and can have and truly having sometimes is a plurality of transmits the wide area network wireless terminal that the uplink signal that recovers is just being attempted in the base station to the base station.Thus, the base station is determined, and to be used for managing the controlling elements α of interference passable, and depend on a plurality of users sometimes really.In certain embodiments, controlling elements α depends on user's number, for example enlivens wan user's number and/or enlivens the number of peer users.
Figure 15 is the illustration 1002 of the feature of the various embodiment of diagram, and wherein wide area network has base station mourning in silence the period of monitoring and measuring equity noise therein.Exemplary illustration 1002 comprises the base station 1004 with corresponding cellular coverage 1006.In certain embodiments, the radius of this cellular coverage is at least 1 km.In this cellular cell, a plurality of wireless terminals that work (WT A 1008, WT B 1010, WT C 1012, WT D 1014) are arranged under the honeycomb operator scheme.These wireless terminals (1008,1010,1012,1014) receive from the down link signal of base station 1004 and to base station 1004 and transmit uplink signal.Yet this time point is mourned in silence the period corresponding to the wide area network up link of having a mind to, and does not transmit any uplink signal at this wide area network wireless terminal (1008,1010,1012,1014).
Figure 16 is the illustration 1102 of the certain characteristics of the various embodiment of diagram, and is the continuity of the example of Figure 15.Power control value α is disturbed to determine according to measured equity in base station 1004.The base station is subsequently via being broadcasted this controlling value α by the signal 1104 that these wireless terminals use.In this exemplary embodiment, single value is broadcasted for controlling value α in the base station; Yet this value can and be received the different wireless communication equipment of broadcast singal 1104 sometimes really and does different the use.In this example, this group wireless terminal (WT A 1008, WT B 1010, WT C 1012, WT D 1014) of operating under honeycomb mode uses the first power control function f
1(α) 1106 determine the transmitted power level Control Parameter; And this group wireless terminal (WT 1 1016, WT 21018, WT 3 1020, WT 4 1022) of operating under ad-hoc mode uses the second power control function f
2(α) 1108 determine the transmitted power level Control Parameter.
Figure 17 is the illustration of exemplary controlling value look-up table 1200 of the feature of the various embodiment of diagram.In certain embodiments, wireless terminal receives the broadcasting power controlling value from the base station, and determines the power control value that it will use oneself according to this value of receiving and corresponding service class.Different service class is passable, and sometimes really corresponding to different Traffic types, dissimilar service and/or different service-users, and be mapped to different service class.For example, exemplary different priorities in certain embodiments with different Traffic types---for example, the data of data that voice, stand-by period are very crucial and best endeavors type---be associated.Exemplary dissimilar service comprises, for example urgency communication service and common communications.Dissimilar users comprise, for example, and the low priority user of subscribing to the medium priority user of high service class plan and having subscribed to low service class plan such as high-priority users such as police, fire, emergency services.Thus in certain embodiments, revise the power control value that recovers according to priority-level.
In exemplary table 1200, the indication of first row 1202 is exemplary receives controlling value α, the exemplary corresponding with service rank 1 controlling value α of secondary series 1204 indications
1, the exemplary corresponding with service rank 2 controlling value α of the 3rd row 1206 indications
2, and the exemplary corresponding with service rank 3 controlling value α of the 4th row 1208 indications
3If the indication of first row 1210 uses the wireless terminal of look-up tables 1200 to receive that broadcasting power controlling value and its corresponding service class from the indication-10dB of base station are (service class 1, service class 2, service class 3), then its to its power control value use respectively (10dB ,-15dB ,-20dB).If the indication of second row 1212 uses the wireless terminal of look-up tables 1200 to receive that broadcasting power controlling value and its corresponding service class from the indication-20dB of base station are (service class 1, service class 2, service class 3), then its to its power control value use respectively (20dB ,-25dB ,-30dB).If the third line 1214 indication uses the wireless terminal of look-up tables 1200 to receive that broadcasting power controlling value and its corresponding service class from the indication-30dB of base station are (service class 1, service class 2, service class 3), then its to its power control value use respectively (30dB ,-35dB ,-40dB).
The flow chart 1300 of the illustrative methods that Figure 18 operates the base station according to various embodiment---for example its uplink bandwidth also is used to the base station of reciprocity signaling---.This base station is for example to adjoin the base station of being operated by the part of synchronous cellular communication system between the base station as wherein operating in.Be convenient to synchronously between the base station realize the general uplink null period adjoining, wherein can control wide area network wireless terminal cellular cell uplink signalling to stop at large.These sky periods are used for the measurement of ambient interferences.In such embodiments, ambient interferences W can be similar to by W=thermal noise+reciprocity noise.Base station expectation control is disturbed, and determines and power control factor α that broadcasting will be received by near the wireless terminal it.
Operate in step 1302 beginning, powered on and initialization in this this base station.In certain embodiments, this initialization comprises being used default value by the power control factor α to these wireless terminal broadcasting.Operation advances to step 1304 from beginning step 1302.Measure ambient interferences W during in step 1304, the base station is at empty interval---for example, wherein controlling the up link empty interval that the WAN wireless terminal is prevented own signaling---.
Operation advances to step 1306 from step 1304.In step 1306, power control factor α is determined according to measured ambient interferences in the base station.In various embodiments, employed function makes that along with W increases, α increases at least some non-NULL scopes of W.In certain embodiments, step 1306 determines to comprise comparison with the interference budget information of storing.Operation advances to step 1308 from step 1306.
In step 1308, the determined power control factor α of base station broadcast.Operation advances to step 1304 from step 1308, in another time measurement of this execution to ambient interferences.
In certain embodiments, generation be broadcasted carry out and use repeatedly measurement during definite power control factor to ambient interferences corresponding to a plurality of empty intervals.Thus in certain embodiments, the base station is in the step 1308 that carrying out one group of background corresponding to one group of empty interval before the determined power control factor of broadcasting measures, for example step 1304 repeatedly repeatedly.
The flow chart 1400 of the illustrative methods that Figure 19 operates the base station according to various embodiment---for example its uplink bandwidth also is used to the base station of reciprocity signaling---.This base station is for example to adjoin the base station of not operated by the part of synchronous cellular communication system between the base station as wherein operating in.In the based structures, the uplink null period is used for measuring ambient interferences by the base station when the employed up link in this base station.Yet, because the operation in the adjacent cells is not by synchronously, therefore pass in time and may change from the interference level of adjacent cells, thereby if make must extract ambient interferences to aliquot with adjoin the base station by synchronously and be controlled such that the situation that situation that the uplink null of having a mind to occurs concomitantly should occur just compares difficulty more.Base station expectation control is disturbed, and determines and power control factor α that broadcasting will be received by near the wireless terminal it.According to the feature of present embodiment, the base station changes the broadcasting power controlling elements of its broadcasting wittingly as controlled input, thereby measures response.
Operation starts from step 1402---and powered on and initialization in this base station, and advanced to step 1404.In step 1404, base station broadcast power control factor α
1At this point, α
1It is the default value that obtains from initialization.Measure ambient interferences W during in step 1406, the base station is at empty interval subsequently---for example, wherein using the Wireless Telecom Equipment of this base station to be constrained to the up link WAN empty interval that does not transmit uplink signal wittingly---
1Operation advances to step 1408 from step 1406.
In step 1408, the base station is adjusted power control factor and is determined the second power control factor α
2For example, α
2=α
1+ Δ α, wherein Δ α is nonzero value and can just can bears.Typically, the amplitude of Δ α is α
1A little mark of amplitude, for example, be less than or equal α
125%.Operation advances to step 1410 from step 1408, and wherein this new transmitting power controlling elements α is transmitted in the base station
2Operation advances to step 1412 from step 1410.
In step 1412, ambient interferences W is measured in the base station during empty interval
2Operation advances to step 1414 from step 1412.In step 1414, power control factor α is determined according to the change that records ambient interferences and the change of the power control factor that is transmitted in the base station
3For example, α
3Determine according to Δ W and Δ α, wherein Δ W=W
2-W
1In an exemplary embodiment, α
3Be α
3=α
2+ Δ α and α
3=α
1One of-Δ α.Operation advances to step 1416 from step 1414, in this base station α is set
1=α
3Action row enters step 1404, at this base station broadcast power control factor α
1
Figure 20 is that noise W on the longitudinal axis 1502 is with respect to the illustration of the plotting curve 1500 of the α on the transverse axis 1504.Representing the noise W that receives noise to comprise that reciprocity noise and other cellular cells disturb at the place, base station that attempts recovering uplink signal.Variable α is a power control factor.Curve 1506 is that W corresponding to other cellular cell interference levels 1508 is with respect to the α characteristic curve.During the uplink null time interval of having a mind to corresponding to first base station, first base station is controlled wittingly and is connected into a little wireless terminal used as network and prevents and to carry out uplink signalling.During the uplink null time interval that this has a mind to, allow movable continuation of equity in this cellular cell.Thus, this equity activity is used as noise by first base station receiver and is treated and make contributions for measured noise W.
Consider now has the base station of adjoining just to operate with respect to first base station asynchronously.Because this adjoins the base station with first base station asynchronous, thus the uplink null time interval of having a mind to that adjoins the base station not necessarily with the empty time interval crossover of having a mind to of first base station.Thus, this uplink signalling that adjoins the base station is also made contributions to the noise W that records that is measured during the uplink null period of having a mind to of first base station by first base station.
W is with respect to the characteristic curve 1506 of α other cellular cell disturbed ones 508 corresponding to preset level, and the latter represents the minimum levels of interference.If operating near on the saturated point on the curve 1506, then the α increase can not cause remarkable improvement to the reduction of noise W.α increases corresponding to the restriction to the transmitting power of reciprocity signaling.Thus, under such condition, limit reciprocity transmitted power level extraly and can significantly not improve reception from the uplink signal of cellular radio terminals.Yet if operate on the point that has high slope value on the curve 1506, increasing slightly of α will cause remarkable change to the level decline of noise W.Under such condition, reduce α sometimes such as to improve will being useful from recovery based on the uplink signal of the wireless terminal of cellular cell.For example, suppress reciprocity transmitted power level can cause uplink signalling recovery and/or throughput under such condition remarkable improvement slightly.
Generally speaking, in various embodiments, compare with reciprocity signaling based on the communications reception of good wide area (for example honeycomb) and to be given priority.Yet, closing of given specified level need based on the situation of the up link quality of reception of cellular cell under expectation peer-to-peer communications throughput be maximized.Can observe the function that W will disturb as these other cellular cells with respect to the α characteristic curve and change.These other cellular cells interference can and be independent of the operation of first cellular cell sometimes really and change.For example, owing to all conditions, adjoin in the cellular cell number based on the wireless terminal user of honeycomb, adjoin cellular cell uplink traffic load etc., these other cellular cells that first base station is experienced disturb and can change to different level.Plotting curve 1600 diagrams of Figure 21 are compared other different cellular cell interference levels 1608 with other cellular cell interference levels 1508 of Figure 20.In addition, Figure 21 diagram is compared different characteristic curve 1606 with characteristic curve 1506.
The illustrative methods of the selection of the power control factor α that uses is in various embodiments adjusted in Figure 22 diagram in response to noise testing.Figure 22 is corresponding to the plotting curve 1700 of the noise W on the longitudinal axis 1502 of characteristic curve 1506 with respect to the α on the transverse axis 1504.In when operation, first base station may not recognized corresponding to operation on the characteristic curve 1506 of other cellular cell interference levels 1508 of Figure 20 in first base station, and wherein curve 1506 is one of the families of curves that comprise the curve 1606 of curve 1506 and Figure 21.
Initial value α is arranged to α in first base station
11702, it is broadcast.Value α
11702 are used for controlling its reciprocity transmitting power by the reciprocity wireless terminal in the cellular cell of first base station.During the uplink null period of having a mind to of first base station, the noise level W that first base station measurement is received is W
11706.Subsequently, first base station is wittingly with α
1Value change amount Δ α 1708 to obtain α
21710.This is representing and is being used for wittingly the noise level of receiving on the characteristic curve 1506 being driven into the controlled input of difference (from 1704 to 1712).The first base station broadcast parameter alpha
21710.Value α
21720 are used for controlling its reciprocity transmitting power by the reciprocity wireless terminal in the cellular cell of first base station.During the uplink null period of having a mind to of first base station, the noise level W that first base station measurement is received is W
21 714.The change of the first base station measurement W, promptly Δ W 1716.First base station subsequently according to input motivation value Δ α, record the new value that response Δ W and interference budget information that some are being stored decide α.In certain embodiments, first base station is according at least one noise testing point---for example, and W
1Or W
2---decide the new value of α.In this example, if as the point 1718 indicated in Δ W less, then first base station is with the new value α of α
3Be arranged to α
3=α
1-Δ α; And if as the point 1720 indicated in Δ W bigger, then first base station is with the new value α of α
3Be arranged to α
3=α
2+ Δ α, it is medium and small and big determines with respect to the predetermined interference budget information of storing.This power control factor of first base station broadcast α subsequently
3Be used for controlling its reciprocity transmitted power level for the reciprocity wireless terminal in this cellular cell.
Figure 23 is illustrated in to utilize time division duplex (TDD) for example to carry out the illustration 1800 that the example bandwidth among some embodiment of cellular communication is used to wide area network.Corresponding to the wide area network of base station, identical frequency band is for example shared with alternate mode between up link and down link at for example.For example, be used for wide area---for example, cellular communication---TDD band along timeline 1802 as indicated in frame (1804,1806,1808,1810), be used for (up link, down link, up link, down link) respectively.Except that typical activity based on honeycomb, peer broadcast signal, for example beacon signal and/or other broadcast singals are transmitted in the base station during the interval that typically is the reservation of wide area uplink signalling.This is represented by the signal (1812,1814) corresponding to the time interval of frame (1804,1808) respectively.In addition, be designated as and be used for wide area network---for example, cellular uplink---time interval also be used to reciprocity signaling, wherein as by cellular uplink frame (1804,1808) respectively with reciprocity frame (1816,1818) and deposit and make indication ground and just using same TDD band.
Figure 24 is illustrated in to utilize Frequency Division Duplexing (FDD) (FDD) for example to carry out the illustration 1900 that the example bandwidth among some embodiment of cellular communication is used to wide area network.Corresponding to the wide area network of base station, up link is used different frequency bands with down link at for example.In this exemplary embodiment, this FDD wide area up link band is represented by the frame 1904 along frequency axis 1902, and FDD wide area down link band is represented by frame 1096.In certain embodiments, up link and down link band adjoin.In certain embodiments, up link and/or down link band comprise non-adjoining segment.In certain embodiments, have at least a part to be included between two different pieces of another person among this up link and the down link band in one of up link and down link band.
Except that typical uplink signalling based on honeycomb, this frequency band also is used for other activities relevant with reciprocity signaling in the FDD wide area up link band.In Figure 24, FDD wide area up link band 1904 also is used for transmitting peer broadcast signal 1908 by the base station, and for example beacon signal is transmitted in this base station and/or other broadcast singals use for reciprocity wireless terminal.The equity wireless terminal also will be as the frame 1910 indicated same frequency bands corresponding to FDD wide area up link band 1904 are used for reciprocity signaling on the frequency axis 1902 by being positioned at.
Figure 25 is the illustration according to the exemplary multi-mode radio communications device 2000 of various embodiment realizations.Multi-mode radio communications device 200 is supported wan communication and peer-to-peer communications.In certain embodiments, communication equipment 2000 uses Frequency Division Duplexing (FDD) and uses time division duplex as peer-to-peer communications for wan communication.In some such 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 various unit can swap data and information on bus 2010.
User I/O equipment 2004 comprises for example 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 Wireless Telecom Equipment 2000 of Wireless Telecom Equipment 2000, for example, this communication equipment is arranged to the WAN operator scheme, this communication equipment is arranged to the peering pattern, this communication equipment is arranged to operator scheme that allows WAN communication and peer-to-peer communications or the like.The user chooses among some embodiment of peer-to-peer communications therein, and this communication equipment automaticallyes switch on the reproduction basis and advances the WAN operator scheme so that can monitor the WAN paging signal of just passing on.The user is arranged to this communication equipment to support among some embodiment of operator scheme of WAN signaling and reciprocity signaling therein, and this communication equipment is considered and changed hand at least one among considering and automatically switch between all patterns according to receiving priority.
Transmitter chain 2001 comprises digital to analog converter (DAC) 2018, frequency mixer 2020 and power amplifier (PA) 2022.Digitally transmitted signals module 2042 is to DAC 2018 output digital signals, and DAC 2018 converts this digital signal to analog signal.This analog signal is imported into frequency mixer 2020, and it also has and is uplink frequency (f
UL)---for example, wide area network uplink communication band carrier frequency---input 2026.The output of frequency mixer 2020 is imported into power amplifier 2022, and it amplifies the signal of receiving and will export to duplexer module 2024 through amplifying signal.Duplexer module 2024 will be received will be transmitted be coupled to antenna 2012 through amplifying signal, communication equipment 2000 transmits signal via this antenna.The signal that is transmitted when Wireless Telecom Equipment 2000 be to comprise uplink signal when under the WAN operator scheme, working, and when this wireless device be to comprise reciprocity signal when under the peering pattern, working.
Suppose mode control module 2044 control switch 2,032 first receiver chain 2003 is coupled to ADC2034.Be received via antenna 2012 and be coupled to BPF from the down link signal of base station via duplexer module 2024
12028.The output of band pass filter 1 2028 is transfused to frequency mixer 2030.Another input of frequency mixer 2030 is down-link frequencies (f
DL) 2036, wide area network downlink communication band carrier frequency for example.Mixer module 2030 removes carrier frequency, for example, and to obtain analog baseband signal.Output signal---for example, this analog baseband signal---be fed to ADC transducer 2034 via switch 2032.ADC transducer 2034 is handled this input signal and is expressed to obtain digital signal, and it is fed to digital received signaling module 2046.
Present supposition mode control module 2044 control switch 2032 is coupled to ADC 2034 with second receiver chain 2003.The reciprocity signal of the Wireless Telecom Equipment of operating under the next comfortable ad-hoc mode is received and is coupled to BPF via antenna 2014
22038.The output of band pass filter 2 2038 is transfused to frequency mixer 2040.Another input of frequency mixer 2040 is uplink frequency (f
UL) 2026, for example also be used to the wide area network uplink communication band carrier frequency of reciprocity signaling.Mixer module 2040 removes carrier frequency, for example, and to obtain analog baseband signal.Output signal---for example, this analog baseband signal---be fed to ADC transducer 2034 via switch 2032.ADC transducer 2034 is handled this input signal and is expressed to obtain digital signal, and it is fed to digital received signaling module 2046.
In first operator scheme and second operator scheme which be mode control module 2044 select to use switch between the use of first and second receiver chains (2003,2005) according to mode control module 2044 in preset time.In various embodiments, first operator scheme is the frequency division duplex operation pattern, wide area network FDD operator scheme for example, and second operator scheme is the peer-to-peer communications operator scheme, for example time division duplex (TDD) peering pattern.
In certain embodiments, the wide area network receiving scheduling realized according to communication equipment 2000 of mode control module 2044 is automatically controlled switching.In some such embodiment, when schedule information indication multi-mode communication device 2000 can receive the wide area network paging signal, mode control module 2044 control appliances 2000 may receive at multi-mode communication device 2000 during period of wide area network paging signal in first operator scheme---for example, and WAN operator scheme---work down.In certain embodiments, mode control module 2044 causes equipment 2000 to be imported in response to the user who receives selecting switch mode.In certain embodiments, mode control module 2044 causes equipment 2000 in response to receiving that precedence information comes switch mode.In various embodiments, mode control module 2044 causes equipment 2000 to come switch mode in response to changing the hand indicator signal.In certain embodiments, mode control module 2044 causes equipment 2000 to come switch mode in response to schedule information, and for example, peer-to-peer communications is being limited to disturb to reduce during pre-special time in respect of high WAN signaling.In certain embodiments, mode control module 2044 causes equipment 2000 to come switch mode in response to locating information, for example, some location may be arranged in outside the cellular coverage or other location may be too near to the base station and make that considering to disapprove uplink band because of the interference at base station receiver place has reciprocity signaling or service supplier not to use the mandate of one of WAN signaling or reciprocity signaling in particular locality.In certain embodiments, mode control module 2044 causes equipment 2000 to change in response to the channel quality on the detected link of just keeping coming switch mode.
The operation and the reception user model of I/O module 2058 control user I/O equipment 2004 are chosen information 2074, for example, choose, choose, choose according to the user who receives precedence information and/or change the pattern that hand information automatically switches between WAN and peering in order to the user who uses the WAN signaling in order to this equipment is placed it in order to the user who enables reciprocity signaling.
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 just main to use reciprocity signaling to operate, communication equipment 2000 is switched into reception WAN paging signal by the reproduction scheduling during between the WAN paging zone.
Receive priority block 2068 and determine in preset time it is that WAN network communication will have priority or reciprocity signaling will have priority.The definite of module 2068 used by mode control module 2044, and the latter is controlled between the alternative receiver chain (2003,2005) switches to realize WAN communication or peer-to-peer communications respectively.Thus, mode control module 2044 is switched between WAN pattern and ad-hoc mode according to receiving precedence information.For example, in certain embodiments, give the priority that the WAN signaling is higher than reciprocity signaling usually; Yet for the user of at least some types and/or the signaling of some types, for example, user and/or signal corresponding to emergency service give the priority that reciprocity signaling is higher than the wide area network signaling.As another example, the competition stand-by period considers and/or service class gives priority based on assessing.
User model is chosen information 2074 and is comprised the modality preferences of ordering or being asked from the identifying user of I/O module 2058---for example, wide area network pattern, ad-hoc mode or allow communication equipment 2000 for example according to signal quality, priority, load and/or change the pattern that hand information replaces automatically between WAN pattern and ad-hoc mode---information.
The WAN signal comprises down link signal of receiving and the uplink signal that will transmit.The down link signal of receiving from the base station comprises, for example beacon signal, pilot frequency channel signal, synchronizing signal, power control signal, the time base control signal, paging signal, appointment signal and traffic channel signal.Uplink signal comprises, for example insert signal, the time base control signal, comprise Dedicated Control Channel signal, page request signal and the uplink traffic signal of air link resources request signal and channel conditions report.
The equity signal comprises that equity transmits signal and reciprocity received signal.Exemplary equity transmits signal and comprises, for example identifies user's beacon signal of communication equipment 2000, reciprocity paging signal, reciprocity traffic request signal and reciprocity telephone traffic signal.Exemplary reciprocity received signal comprises, for example near user's beacon, reciprocity paging signal, reciprocity traffic request signal and the reciprocity telephone traffic signal of other Wireless Telecom Equipments local.
Change hand indicator signal 2080 and be from change 2070 outputs of fingerprint piece and use by mode control module 2044.Present mode information 2082 indication by mode control module 2044 corresponding to the set present mode of mode control signal 2048.
In certain embodiments, still be that second receiver chain 2005 all uses identical antenna no matter just use first receiver chain 2003.In certain embodiments, use extra switch one of first receiver chain 2003 and second receiver chain 2005 to be coupled to duplexer module 2024, the operational coordination of the operation of this extra switch and switch 2032.
In various embodiments, do not use duplexer module 2024 and transmitter and receiver used antenna separately.In certain embodiments, use extra switch one of first receiver chain 2003 and second receiver chain 2005 to be coupled to reception antenna, the operational coordination of the operation of this extra switch and switch 2032.
In certain embodiments, first and second band pass filters are different hardware devices.In certain embodiments, first and second band pass filters are programmable and are programmed to realize different filters.
In another embodiment, replace frequency mixer (2030,2040) to use single frequency mixer, its medium frequency is imported according to mode control signal at f
DLWith f
ULBetween controllably switch, and band pass filter switches according to mode control signal.
In certain embodiments, be included in the various elements among the DSP 2016---for example, mode control module 2044---be included in the routine 2050.In certain embodiments, the various elements that are included in the memory 2008 are included in the transceiver module 2002.In various embodiments, instead of wireless transceiver module 2002 is realized independent transmitting set module and individual wireless receiver module.
Figure 26 is that diagram is according to the exemplary band of various embodiment and the illustration 2100 that shared frequency band uses between wan communication use and peer-to-peer communications use.Frequency band as the wan communication band also is assigned with as reciprocity TDD receiver frequency band with as reciprocity TDD transmitter band.As example, represented frequency band can be used by the multi-mode radio communications device of Figure 25 among Figure 26, for example, in different location and/or in the different time, different WAN up links and downlink communication frequency band is arranged to available and/or be used.
Similarly, corresponding to frequency f
UL22113, wide area network up link Frequency Division Duplexing (FDD) band 2112, reciprocity time division duplex conveyer belt 2116 and reciprocity time division duplex receiving belt 2118 are arranged.It is 2114 paired that wide area network up link Frequency Division Duplexing (FDD) band 2112 and wide area network down link frequency division duplex are with.Corresponding to frequency f
DL22115, there is wide area network down link frequency division duplex to be with 2114.
Similarly, corresponding to frequency f
UL32123, wide area network up link Frequency Division Duplexing (FDD) band 2122, reciprocity time division duplex conveyer belt 2126 and reciprocity time division duplex receiving belt 2128 are arranged.It is 2124 paired that wide area network up link Frequency Division Duplexing (FDD) band 2122 and wide area network down link frequency division duplex are with.Corresponding to frequency f
DL32125, there is wide area network down link frequency division duplex to be with 2124.
Consider the exemplary apparatus 2000 of Figure 25.The decision of this communication equipment use among Figure 26 these 3 groups of WAN frequencies to one of.For example, consider to have chosen second pair.Being used for WAN and equity transmits the transmitter chain 2001 of signaling and is used for second receiver chain 2005 that reciprocity signal receives and be tuned to f
UL2 First receiver chain 2003 that is used to receive the WAN signal is tuned to f
DL2
Figure 27 comprises according to the flow chart 2200 of the illustrative methods of the operation multi-mode radio communications device of various embodiment and based structures 2250 information when exemplary.The operation of this illustrative methods starts from step 2202, is powered on and initialization at this this multi-mode radio communications device.This multi-mode radio communications device is, for example the equipment 2000 of Figure 25.Operation advances to step 2204 from beginning step 2202.In step 2204, this wireless device with its transmitter chain be tuned to first frequency band, this transmitter chain will be used to transmit uplink signal and reciprocity signal.In step 2206, this wireless device with its first receiver chain be tuned to second frequency band, this second frequency band is different from above-mentioned first frequency band, this first receiver chain will be used to receive the WAN down link signal.In step 2208, this wireless device with its second receiver chain be tuned to first frequency band, this second receiver chain will be used to receive reciprocity signal.Operation advances to step 2210 from step 2208.
In step 2210, this wireless device receives the input that the indication operator selects ad-hoc mode to enable.In step 2212, this Wireless Telecom Equipment is enabled ad-hoc mode as the primary operations pattern that will use subsequently.Operation advances to step 2214 from step 2212.In step 2214, this wireless device is according to automatically switching between peering pattern and WAN operator scheme between the WAN paging zone in the predetermined scheduling.For example, consider the multi-mode radio communications device 2000 of Figure 25, when this scheduling indication was just occurring between paging zone, mode control module 2044 control switchs 2032 switched to ADC 2034 with first receiver chain 2003; Yet when not occurring between this scheduling indication paging zone, mode control module 2044 control switchs 2032 switch to ADC2034 with second receiver chain 2005.
The time based structures information that illustration 2250 indication of Figure 27 is exemplary, during the exemplary reproduction of its sign in the based structures along (2254,2258) between the exemplary WAN paging zone of time shaft 2252 and exemplary reciprocity interval (2256,2260).
Figure 28 is a flow chart 2500 of operating the illustrative methods of multi-mode radio communications device according to various embodiment.Multi-mode radio communications device is the equipment 2000 of for example Figure 25.Operation starts from step 2502---and powered on and initialization at this this multi-mode communication device, and advanced to step 2504.In step 2504, this wireless terminal is replaced centering from many groups and is selected first fdd uplink/down link right, for example a pair of FDD frequency band that is associated with the tuner frequencies setting.3 groups of exemplary FDD uplink/downlinks of illustration 2100 diagrams of Figure 26 are right.
Operation advances to step 2506 from step 2504, the transmission signals that has a RF frequency with generation at tuning first transmitter chain of this this communication equipment, and in step 2508, tuning first receiver chain of this communication equipment has the signal of receiving of the 2nd RF frequency with processing.Operation advances to step 2510 from step 2508, and wherein tuning second receiver chain of this communication equipment has the signal of receiving of an above-mentioned RF frequency with processing.In certain embodiments, one or more persons in the step 2506,2508 and 2510 is executed in parallel.In various embodiments, a RF frequency is corresponding to the right FDD up link of selecting in step 2504 of FDD, and the 2nd RF frequency is corresponding to the right FDD down link of selecting in step 2504 of FDD.
Operation advances to step 2512 from step 2510.In step 2512, this communication equipment receives sign the user of pattern is chosen---for example, peer-to-peer communications pattern or wan communication pattern---user's input.Operation advances to step 2514 from step 2512.In step 2514, whether this communication equipment depends on that the user of step 2512 chooses enables ad-hoc mode and advances along different paths.
If enabled ad-hoc mode, then operate and advance to step 2516 from step 2514.If do not enable ad-hoc mode, then operate advancing to step 2518 from step 2514, use the above-mentioned transmitter chain and first receiver chain in second operator scheme at this this communication equipment---and for example, wide area network FDD operator scheme---work down.
Turn back to step 2516, in step 2516, in first operator scheme and second operator scheme which this communication equipment select to use switch between the use of first and second receiver chains according to mode control module in preset time.This switching is to carry out in the automatic or semi-automatic mode that does not have the user to get involved in various embodiments.Step 2516 comprises substep 2520,2524,2526,2528,2530 and 2532.In substep 2520, this communication equipment identifies the time interval in the WAN receiving scheduling that this communication equipment realizes, and in substep 2524, this communication equipment determines whether the time interval that is identified in the WAN receiving scheduling indicates between the WAN paging zone subsequently.If between the indication paging zone, then operate from substep 2524 and advance to substep 2526; Otherwise operation advances to substep 2528 from substep 2524.
Turn back to substep 2526, in substep 2526, the mode control module of this communication equipment is selected first pattern, FDD WAN operator scheme for example, and in substep 2530, this communication equipment switches to and uses first receiver chain.Turn back to substep 2528, in substep 2528, the mode control module of this communication equipment is selected second pattern, peer-to-peer communications operator scheme for example, and in substep 2532, this communication equipment switches to and uses second receiver chain.
If operation has been advanced by substep 2530, then action row enters step 2534; And if operation has been advanced by substep 2532, then action row enters step 2536.In step 2534, this communication equipment uses first receiver chain in first operator scheme---and for example, FDD WAN pattern---work is to receive the WAN paging signal down.In step 2536, this communication equipment uses second receiver chain and transmitter chain in second operator scheme---for example, and peering pattern---work down.In various embodiments, when the user enabled peering, this communication equipment mastery ground used second receiver chain to work under second pattern; Yet, when WAN between at least some paging zones of based structures during, this communication equipment uses first receiver chain to work under first pattern.Operation advances to step 2516 from one of step 2534 and step 2536, belongs to the pattern and the switching of another time interval with sign and consideration.
Figure 29 is a flow chart 2600 of operating the illustrative methods of multi-mode radio communications device according to various embodiment.This multi-mode radio communications device is, for example the equipment 2000 of Figure 25.Operation starts from step 2602---and powered on and initialization at this this multi-mode communication device, and advanced to step 2604.In step 2604, this wireless terminal is replaced centering from many groups and is selected first fdd uplink/down link right, for example a pair of FDD frequency band that is associated with the tuner frequencies setting.3 groups of exemplary FDD uplink/downlinks of illustration 2100 diagrams of Figure 26 are right.
Operation advances to step 2606 from step 2604, the transmission signals that has a RF frequency with generation at tuning first transmitter chain of this this communication equipment, and in step 2608, tuning first receiver chain of this communication equipment has the signal of receiving of the 2nd RF frequency with processing.Operation advances to step 2610 from step 2608, and wherein tuning second receiver chain of this communication equipment has the signal of receiving of an above-mentioned RF frequency with processing.In certain embodiments, one or more persons in the step 2606,2608 and 2610 is executed in parallel.In various embodiments, a RF frequency is corresponding to the right FDD up link of selecting in step 2604 of FDD, and the 2nd RF frequency is corresponding to the right FDD down link of selecting in step 2604 of FDD.
Operation advances to step 2612 from step 2610.In step 2612, this communication equipment according to mode control module preset time point selection use in first pattern (for example wide area network fdd mode) and second pattern (for example, peering pattern) which to come between the use of first and second receiver chains, to switch.For example, this multi-mode communication system is no matter this communication equipment is in and all uses this transmitter under wide area network fdd mode or the ad-hoc mode.Yet at reception, this multi-mode communication device uses first receiver chain being in WAN fdd mode following time, and uses second receiver chain being in peering pattern following time.Thus, WAN communication is FDD, and peer-to-peer communications is TDD, and wherein peer-to-peer communications is shared WAN FDD up link band.
Operation advances to the input of step 2612 from the output of step 2612.As time passes, receive priority can, and for example consider etc. and to change really sometimes because of amount, the stand-by period of the type of the specific user of this communication equipment, service class information, the data that will pass on, the data that will pass on.
Figure 30 is a flow chart 2700 of operating the illustrative methods of multi-mode radio communications device according to various embodiment.This multi-mode radio communications device is, for example the equipment 2000 of Figure 25.Operation starts from step 2702---and powered on and initialization at this this multi-mode communication device, and advanced to step 2704.In step 2704, this wireless terminal is replaced centering from many groups and is selected first fdd uplink/down link right, for example a pair of FDD frequency band that is associated with the tuner frequencies setting.3 groups of exemplary FDD uplink/downlinks of illustration 2100 diagrams of Figure 26 are right.
Operation advances to step 2706 from step 2704, the transmission signals that has a RF frequency with generation at tuning first transmitter chain of this this communication equipment, and in step 2708, tuning first receiver chain of this communication equipment has the signal of receiving of the 2nd RF frequency with processing.Operation advances to step 2710 from step 2708, and wherein tuning second receiver chain of this communication equipment has the signal of receiving of an above-mentioned RF frequency with processing.In certain embodiments, one or more persons in the step 2706,2708 and 2710 is executed in parallel.In various embodiments, a RF frequency is corresponding to the right FDD up link of selecting in step 2704 of FDD, and the 2nd RF frequency is corresponding to the right FDD down link of selecting in step 2704 of FDD.
Operation advances to step 2712 from step 2710.In step 2712, this communication device monitors is changed the hand indicator signal.For the detected hand indicator signal that changes, operation advances to step 2714 from step 2712.
In step 2714, this communication equipment determines whether this changes hand is to the WAN communication link from peer-to-peer communication link.If determine this change hand be from peer-to-peer communication link to the WAN communication link, then operate and advance to step 2716 from step 2714; Otherwise operation advances to step 2718 from step 2714.
In step 2718, this communication equipment determines whether this changes hand is to peer-to-peer communication link from the WAN communication link.If determine this change hand be from the WAN communication link to peer-to-peer communication link, then operate and advance to step 2720 from step 2718; Otherwise operation just advances to step 2712 from step 2718, and this is because the not change of the type of link, for example, changes hand and is between different base station in this WAN network or the different base station sector and take place, and do not carry out switching between the receiver.
Turn back to step 2716, in step 2716, this communication equipment switches to first operator scheme (for example, WAN operator scheme) from second operator scheme (for example, peering pattern).Turn back to step 2720, in step 2720, this communication equipment switches to second operator scheme (for example, peering pattern) from first operator scheme (for example, WAN operator scheme).Operation advances to step 2722 from one of step 2716 and 2720.
In step 2722, this communication equipment is according to select to use among above-mentioned first operator scheme (for example wide area network fdd mode) and above-mentioned second operator scheme (for example, peering pattern) which to switch between the use of first and second receiver chains in preset time.For example, if operation is advanced along step 2716, then switch and so take place to transfer to first receiver chain from second receiver chain so that receiver chain uses.Continue this example,, then switch and so take place to transfer to second receiver chain from first receiver chain so that receiver chain uses if operation is advanced along step 2720.Operation advances to step 2712 to monitor the additional hand indicator signal that changes from step 2722.
In various embodiments, use identical transmitter in the two in WAN FDD operator scheme (for example, honeycomb operator scheme) with in peering pattern (for example, TDD peering pattern).Yet, and compare being in peering pattern following time, utilize different receiver chains being in WAN operator scheme following time.In various embodiments, this TDD peering pattern is used and the identical frequency band that is used for uplink signalling in WAN with receiving transmission.
In certain embodiments, the air link resources that uses one of TDD and FDD at least is fit to reciprocity signaling based on the communication system of honeycomb, and at least some are shared and also are used for up link wide area networks in wherein should the equity signaling uplink signalling of cellular cell---for example based on---.In certain embodiments, the air link resources of reservation that the typical communication system based on honeycomb of one of TDD and FDD of using at least is modified to suitable reciprocity signaling, and at least some are shared as the up link wide area network in wherein should the equity signaling uplink signalling of cellular cell---for example based on---.In certain embodiments, many supports are based on the signaling of cellular cell but do not support the conventional communication device of reciprocity signaling can continue to use in this communication system.In various embodiments, communication system supports communication equipment with the support peer-to-peer communications but do not support based at least some the mixing in the communication equipment of communicating by letter of cellular cell.In certain embodiments, communication system support communication equipment and support peer-to-peer communications with based at least some the mixing in both communication equipment of communicating by letter of cellular cell.
Though mainly be to be described in the context of ofdm system, the method and apparatus of various embodiment can be applied in the communication system of the wide scope that comprises many non-OFDM and/or non-cellular system.Some example system are included in the mixing of the technology of utilizing in the reciprocity signaling, for example, and the signal of the signal of some OFDM types and number of C DMA type.
In various embodiments, one or more module of the step that node described herein is to use execution corresponding to one or more kind methods---for example, scan uplink bandwidth, assess base station signal, determine the transmitted power level Control Parameter, control reciprocity transmitting power, measure and disturb, determine transmitting power controlling value, transmission transmitting power Control Parameter etc.---realizes.In certain embodiments, various features can use module to realize.Such module can use the combination of software, hardware or software and hardware to realize.Realizing in the machine readable media that above-described many methods or method step can use and be included in such as memory devices---for example RAM, floppy disk etc.---such as machine-executable instructions such as softwares, with control example as having or for example in one or more node, not realizing above-described all or part method with the all-purpose computer of other softwares.Therefore, various embodiment also especially are used to make the machine of processor and associated hardware etc. for example to carry out the machine readable media of machine-executable instruction of one or more steps of above-described method at comprising.
In view of top description, numerous other distortion of above-mentioned method and apparatus will be obvious to those skilled in the art.These distortion will be considered to drop in the scope.The method and apparatus of various embodiment can and in various embodiments really with CDMA, OFDM (OFDM) and/or various other types can be used for provide the communication technology of the wireless communication link between access node and the mobile node to use.In certain embodiments, these access nodes are implemented as the base station of using OFDM and/or CDMA to set up with mobile node communication link.In various embodiments, mobile node is comprised the receiver/transmitter circuitry of the method that is used to realize various embodiment and the portable set of logic and/or routine for being embodied as notebook, personal digital assistant (PDA) or other.
Claims (41)
1. multi-mode communication device comprises:
Transmitter chain is used to generate the transmission signals with a RF frequency;
First receiver chain is used to handle the signal of receiving with the 2nd RF frequency; And
Second receiver chain is used to handle the signal of receiving with described RF frequency.
2. multi-mode communication device as claimed in claim 1 is characterized in that, further comprises:
Mode control module is used for which switches according to described mode control module select to be used first operator scheme and second operator scheme preset time between the use of described first receiver chain and second receiver chain.
3. multi-mode communication device as claimed in claim 2 is characterized in that, described first operator scheme is the frequency division duplex operation pattern; And
Wherein said second operator scheme is the peer-to-peer communications operator scheme.
4. multi-mode communication device as claimed in claim 3 is characterized in that, described first operator scheme is a wide area network frequency division duplex operation pattern.
5. multi-mode communication device as claimed in claim 3 is characterized in that, described transmitter chain uses during described first operator scheme and second operator scheme.
6. multi-mode communication device as claimed in claim 3 is characterized in that, the wide area network receiving scheduling that described mode control module realizes according to described multi-mode communication device is automatically controlled described switching.
7. multi-mode communication device as claimed in claim 6, it is characterized in that, described schedule information indicates described multi-mode communication device when can receive the wide area network beep-page message, and described mode control module is controlled and worked under described first operator scheme described equipment can be received the period of described wide area network beep-page message at described multi-mode equipment during.
8. multi-mode communication device as claimed in claim 3, it is characterized in that described mode control module is according to switching between described first operator scheme and second operator scheme corresponding to the reception priority that receives the wide area network signal and corresponding to the relativeness of the priority that receives reciprocity signal.
9. multi-mode communication device as claimed in claim 3, it is characterized in that described mode control module is changed hand in response to indication from peer-to-peer communication link and changed the hand indicator signal to cause the switching from described second operator scheme to described first operator scheme to the wan communication link.
10. multi-mode communication device as claimed in claim 3, it is characterized in that described mode control module is changed hand in response to indication from the wan communication link and changed the hand indicator signal to cause the switching from described second operator scheme to described first operator scheme to peer-to-peer communication link.
11. multi-mode communication device as claimed in claim 2 is characterized in that, further comprises:
Memory comprises being used for the predetermined scheduling of working under described first operator scheme and second operator scheme; And
Wherein said mode control module is controlled described equipment according to described scheduling and is switched between described first operator scheme and second operator scheme.
12. a method of operating multi-mode communication device, described method comprises:
Tuning transmitter chain has the transmission signals of a RF frequency with generation;
Tuning first receiver chain has the signal of receiving of the 2nd RF frequency with processing; And
Tuning second receiver chain has the signal of receiving of a described RF frequency with processing.
13. method as claimed in claim 12 is characterized in that, also comprises:
Select to use in first operator scheme and second operator scheme which between the use of described first receiver chain and second receiver chain, to switch according to mode control module in preset time.
14. method as claimed in claim 13 is characterized in that, described first operator scheme is the frequency division duplex operation pattern; And
Wherein said second operator scheme is the peer-to-peer communications operator scheme.
15. method as claimed in claim 14 is characterized in that, described first operator scheme is a wide area network frequency division duplex operation pattern.
16. method as claimed in claim 14 is characterized in that, described transmitter chain uses during described first operator scheme and second operator scheme.
17. method as claimed in claim 14 is characterized in that, described switching is under the situation that does not have the user to get involved and is to carry out according to the wide area network receiving scheduling that described multi-mode communication device is realized.
18. method as claimed in claim 17 is characterized in that, also comprises:
Before described switching, receive user's input of enabling the peering pattern.
19. method as claimed in claim 17 is characterized in that, described wide area network receiving scheduling indicates described multi-mode communication device when can receive the wide area network beep-page message, and described method further comprises:
Control and under described first operator scheme, work described equipment can be received the period of described wide area network beep-page message at described multi-mode equipment during.
20. method as claimed in claim 14, it is characterized in that the switching between described first operator scheme and second operator scheme is according to determining corresponding to the reception priority that receives the wide area network signal and corresponding to the relativeness of the priority that receives reciprocity signal.
21. method as claimed in claim 14 is characterized in that, also comprises:
Receiving indication changes hand from peer-to-peer communication link and changes the hand signal indicator to the wide area network link; And
Switch to described first operator scheme in response to the described hand indicator signal that changes from described second operator scheme.
22. method as claimed in claim 14 is characterized in that, also comprises:
Receiving indication changes hand from the wide area network link and changes the hand signal indicator to peer-to-peer communication link; And
Switch to described second operator scheme in response to the described hand indicator signal that changes from described first operator scheme.
23. method as claimed in claim 14 is characterized in that, also comprises:
Before tuning described transmitter chain, tuning described first receiver chain and tuning described second receiver chain, select the wide area network Frequency Division Duplexing (FDD) right from many groups of potential wide area network Frequency Division Duplexing (FDD) centerings.
24. a multi-mode communication device comprises:
Transmitter installation is used to generate the transmission signals with a RF frequency;
First receiver apparatus is used to handle the signal of receiving with the 2nd RF frequency; And
Second receiver apparatus is used to handle the signal of receiving with described RF frequency.
25. multi-mode communication device as claimed in claim 24 is characterized in that, further comprises:
Mode control device is used for which switches according to described mode control device select to use first operator scheme and second operator scheme preset time between the use of described first receiver apparatus and second receiver apparatus.
26. multi-mode communication device as claimed in claim 25 is characterized in that, described first operator scheme is the frequency division duplex operation pattern; And
Wherein said second operator scheme is the peer-to-peer communications operator scheme.
27. multi-mode communication device as claimed in claim 26 is characterized in that, the wide area network receiving scheduling that described mode control device is realized according to described multi-mode communication device is automatically controlled described switching.
28. multi-mode communication device as claimed in claim 26, it is characterized in that described mode control device is according to switching between described first operator scheme and second operator scheme corresponding to the reception priority that receives the wide area network signal and corresponding to the relativeness of the priority that receives reciprocity signal.
29. multi-mode communication device as claimed in claim 25 is characterized in that, further comprises:
Storage arrangement comprises being used for the predetermined scheduling of working under described first operator scheme and second operator scheme; And
Wherein said mode control device is controlled described equipment according to described scheduling and is switched between described first operator scheme and second operator scheme.
30. a computer-readable medium that comprises the machine-executable instruction that is used to control the multi-mode communication device implementation method, described method comprises:
Tuning transmitter chain has the transmission signals of a RF frequency with generation;
Tuning first receiver chain has the signal of receiving of the 2nd RF frequency with processing; And
Tuning second receiver chain has the signal of receiving of a described RF frequency with processing.
31. computer-readable medium as claimed in claim 30 is characterized in that, further comprises the machine-executable instruction that is used to carry out following operation:
Select to use in first operator scheme and second operator scheme which between the use of described first receiver chain and second receiver chain, to switch according to mode control module in preset time.
32. computer-readable medium as claimed in claim 31 is characterized in that, described first operator scheme is the frequency division duplex operation pattern; And
Wherein said second operator scheme is the peer-to-peer communications operator scheme.
33. computer-readable medium as claimed in claim 32 is characterized in that, described switching is under the situation that does not have the user to get involved and is to carry out according to the wide area network receiving scheduling that described multi-mode communication device is realized.
34. computer-readable medium as claimed in claim 33 is characterized in that, further comprises the machine-executable instruction that is used to carry out following operation:
Before described switching, receive user's input of enabling the peering pattern.
35. computer-readable medium as claimed in claim 32, it is characterized in that the switching between described first operator scheme and second operator scheme is according to determining corresponding to the reception priority that receives the wide area network signal and corresponding to the relativeness of the priority that receives reciprocity signal.
36. a device comprises:
Processor is configured to:
Tuning transmitter chain has the transmission signals of a RF frequency with generation;
Tuning first receiver chain has the signal of receiving of the 2nd RF frequency with processing; And
Tuning second receiver chain has the signal of receiving of a described RF frequency with processing.
37. device as claimed in claim 36 is characterized in that, described processor is further configured:
Select to use in first operator scheme and second operator scheme which between the use of described first receiver chain and second receiver chain, to switch according to mode control module in preset time.
38. device as claimed in claim 37 is characterized in that, described first operator scheme is the frequency division duplex operation pattern; And
Wherein said second operator scheme is the peer-to-peer communications operator scheme.
39. device as claimed in claim 38 is characterized in that, the described processor configuration of switching further is configured to carry out under the situation that does not have the user to get involved and according to the wide area network receiving scheduling that described multi-mode communication device is realized.
40. device as claimed in claim 39 is characterized in that, described processor is further configured:
Before carrying out described switching, receive user's input of enabling the peering pattern.
41. device as claimed in claim 38, it is characterized in that the described processor configuration of switching comprises that further being configured to basis determines corresponding to the reception priority that receives the wide area network signal and corresponding to the relativeness of the priority that receives reciprocity signal between described first operator scheme and second operator scheme.
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| US84505306P | 2006-09-15 | 2006-09-15 | |
| US60/845,053 | 2006-09-15 | ||
| US11/764,459 | 2007-06-18 |
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| CN200780038369.XA Active CN101558577B (en) | 2006-09-15 | 2007-09-14 | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting wan signaling and peer to peer signaling |
| CN200780041997.3A Active CN101543121B (en) | 2006-09-15 | 2007-09-14 | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system |
| CN 200780034353 Pending CN101518121A (en) | 2006-09-15 | 2007-09-14 | Methods and apparatus related to a multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling |
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| CN200780038369.XA Active CN101558577B (en) | 2006-09-15 | 2007-09-14 | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting wan signaling and peer to peer signaling |
| CN200780041997.3A Active CN101543121B (en) | 2006-09-15 | 2007-09-14 | Methods and apparatus related to power control and/or interference management in a mixed wireless communications system |
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| CN109450593A (en) * | 2013-09-06 | 2019-03-08 | 瑞典爱立信有限公司 | The improved adaptation of configured transmission |
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| US7539507B2 (en) * | 2003-11-21 | 2009-05-26 | Qualcomm Incorporated | Peer-to-peer communications |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101543121A (en) | 2009-09-23 |
| CN101558577B (en) | 2013-08-14 |
| CN101558577A (en) | 2009-10-14 |
| CN101523961B (en) | 2012-08-08 |
| CN101523961A (en) | 2009-09-02 |
| CN101543121B (en) | 2014-02-26 |
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