CN101543121B - Methods and apparatus related to power control and/or interference management in a mixed wireless communications system - Google Patents

Methods and apparatus related to power control and/or interference management in a mixed wireless communications system Download PDF

Info

Publication number
CN101543121B
CN101543121B CN200780041997.3A CN200780041997A CN101543121B CN 101543121 B CN101543121 B CN 101543121B CN 200780041997 A CN200780041997 A CN 200780041997A CN 101543121 B CN101543121 B CN 101543121B
Authority
CN
China
Prior art keywords
signal
reciprocity
power level
base station
wireless telecom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN200780041997.3A
Other languages
Chinese (zh)
Other versions
CN101543121A (en
Inventor
李君易
R·拉洛亚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/764,366 external-priority patent/US8369800B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to CN201110443971.XA priority Critical patent/CN102404835B/en
Publication of CN101543121A publication Critical patent/CN101543121A/en
Application granted granted Critical
Publication of CN101543121B publication Critical patent/CN101543121B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y02B60/50—

Landscapes

  • Mobile Radio Communication Systems (AREA)

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 base station transmits a signal to be used by a peer to peer wireless terminal in controlling its peer to peer transmit power level. The peer to peer wireless terminal receives and measures the strength of the base station signal. The measurement information is used in determining whether or not peer to peer signal transmission is permitted and/or in determining a peer to peer transmission power level. Current service level information and/or encoded information, e.g., an interference level indicator value, conveyed by the received base station signal are, in various embodiments, also utilized in determining a peer to peer transmission power level.

Description

To the method and apparatus that power is controlled and/or interference management is relevant in mixed wireless communications system
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 " BEACONS IN A MIXED WIRELESS COMMUNICATION SYSTEM (beacon in mixed wireless communications system) " including in this, 053 rights and interests.
Field
The present invention relates to the method and apparatus for radio communication, relate in particular to the method and apparatus relevant to peer-to-peer communications.
Background
Wireless frequency spectrum is expensive and valuable resource.In such as wide area network systems such as cellular systems, the wireless frequency spectrum of distributing to WAN is not fully utilized sometimes.If can develop identification and/or utilize the method and apparatus of these air link resources that are not fully utilized to be very favourable.If so method and apparatus is adaptive can being managed the interference of WAN communication of producing will be useful so that come from the other use of air link resources.
General introduction
Described to relate to peer-to-peer communications signaling and used the method and apparatus of sharing wide area network (WAN) uplink bandwidth.Base station is transmitted and will by reciprocity wireless terminal, be used for controlling the signal of its reciprocity transmitted power level.Equity wireless terminal receives this base station signal and measures its intensity.Metrical information is used for determining by reciprocity wireless terminal whether reciprocity signal transmission is allowed to and/or definite reciprocity transmitted power level.What current service class information and/or the base station signal of receiving were passed on is also used for determining reciprocity transmitted power level by reciprocity wireless terminal in various embodiments such as encoded information such as interference level indicator value.
In various embodiments, base station changes the transmitted power level of the signal of just launching and/or changes the information that signal is just being passed on.Like this, base station dynamically regulates the interference impacting over against its WAN uplink signal reception being generated by reciprocity wireless terminal.
An illustrative methods that operates the Wireless Telecom Equipment of supporting peer-to-peer communications, comprising: receive the first signal from base station; To receiving that signal is carried out, measure; And according to the first measurement result of receiving signal being controlled to the reciprocity transmitting power of at least some reciprocity signals transmission.An example wireless communication device according to the support peer-to-peer communications of various embodiment, comprising: wireless receiver module, for receiving the signal from base station; Measurement module, for measuring receiving that signal is carried out; And reciprocity transmit power control module, for basis, to receiving the measurement result of signal, control the reciprocity transmitting power of at least some reciprocity signals transmission.
An illustrative methods according to the operation base station of various embodiment, comprising: during the uplink null period, measure up link ambient interferences; And transmit the first up-link transmission power controlling value.An exemplary base according to various embodiment, comprising: interference measurement module, for measure up link ambient interferences during the uplink null period; And transmitter module, for transmitting the first up-link transmission power controlling value.In certain embodiments, from the indication of the interference of reciprocity signaling, be to derive from the measurement during the uplink null period.The up-link transmission power controlling value transmitting is intended to be received by reciprocity wireless terminal and for controlling its transmitted power level, affects thus the interference of experiencing when base station receiver is attempted recovering cellular uplink signal.
Various embodiment relate to the communication system of the mixing that comprises wide area network wireless terminal and reciprocity wireless terminal, wherein all signal is received in identical base station for two types---for example emission power of wireless terminal control signal responds, but to the identical explanation that signal application is different of receiving.A kind of example communication system comprises: the first Wireless Telecom Equipment, comprise: for measure the signal of receiving from base station power receive signal power measurement module, and for according to the first function because becoming the reciprocity signal transmission power control module that power is controlled reciprocity signal transmission power level that records in the signal from base station; And second Wireless Telecom Equipment, comprise: for measure the signal of receiving from described base station power level receive signal power measurement module, and for according to the second function because becoming the wide area network signal transmission power control module that power is controlled wide area signal transmission power level that records in the signal from base station, described the second function is different from described the first function.
Although discuss in the superincumbent general introduction of various embodiment, will be appreciated that and may not all comprise identical feature by all embodiment, and in above-described these features, to have some be not essential, and may be in certain embodiments for desirable.Numerous other features, embodiment and benefit are discussed in the following detailed description.
Accompanying drawing summary
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 operates the flow chart of the illustrative methods of base station according to various embodiment.
Fig. 4 is according to the illustration of the exemplary base of various embodiment.
Fig. 5 operates the flow chart of the illustrative methods of the Wireless Telecom Equipment of supporting reciprocity signaling according to various embodiment.
The illustration that Fig. 6 is according to the example wireless communication device of the support peer-to-peer communications of various embodiment---such as such as wireless terminals such as mobile nodes---.
The Fig. 7 that comprises the combination of Fig. 7 A and Fig. 7 B operates the flow chart of the illustrative methods of the Wireless Telecom Equipment of supporting peer-to-peer communications according to various embodiment.
The illustration that Fig. 8 is according to the example wireless communication device of the support peer-to-peer communications of various embodiment---such as such as wireless terminals such as mobile nodes---.
Fig. 9 is that diagram comprises example communication system, describes the illustration that frequency band is used an exemplary embodiment of the table of information and the table of the exemplary reciprocity emission power of wireless terminal level information of diagram.
Figure 10 is according to the illustration of the example wireless communications of various embodiment.
Figure 11 operates the flow chart of the illustrative methods of base station according to various embodiment.
Figure 12 operates the flow chart of the illustrative methods of base station according to various embodiment.
Figure 13 is according to the illustration of 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 the base station silence period of monitoring and measuring equity noise therein.
Figure 16 is the illustration of some features 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 base station according to various embodiment---for example its uplink bandwidth is also used to the base station of reciprocity signaling---.
The flow chart of the illustrative methods that Figure 19 operates base station according to various embodiment---for example its uplink bandwidth is also 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 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 transverse axis, its diagram is compared other cellular cells of varying level and is disturbed and different characteristic curves from Figure 15.
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 wide area network to utilize time division duplex (TDD) for example to carry out the illustration that the example bandwidth in some embodiment of cellular communication is used.
Figure 24 is illustrated in wide area network to utilize Frequency Division Duplexing (FDD) (FDD) for example to carry out the illustration that the example bandwidth in some embodiment of cellular communication is used.
Figure 25 is according to the illustration of the exemplary multi-mode radio communications device of various embodiment realizations.
Figure 26 is that diagram is according to the illustration of the exemplary band of various embodiment and shared frequency band use 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 operates the flow chart of the illustrative methods of multi-mode radio communications device according to various embodiment.
Figure 29 operates the flow chart of the illustrative methods of multi-mode radio communications device according to various embodiment.
Figure 30 operates the flow chart of 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 starts in step 102, at this wireless communication terminal, is powered on and initialization.Operation advances to step 104 from starting step 102.In step 104, this wireless communication terminal scanning uplink bandwidth to be to detect the signal from base station, for example, from the beacon signal of base station.In various embodiments, uplink bandwidth comprises for transmit a class frequency of signal to base station for equipment, for example, comprises one group of OFDM frequency modulation of uplink tone block.In certain embodiments, the signal from base station being just scanned has predetermined format.In certain embodiments, the signal from base station being just scanned was transmitted in the scheduled time, for example, during the reproduction used with respect to base station based structures or when to equity the relevant scheduled time of based structures.In some embodiment that this base station signal is beacon signal therein, this beacon signal is to comprise in OFDM code element the signal that is less than 3 frequency modulations.
Operation advances to step 106 from step 104, and wherein wireless communication terminal is assessed its signal from base station having detected.In certain embodiments, assessment comprises from the signal of base station the transmission mode of assessing this base station signal.Step 106 comprises sub-step 110.In sub-step 110, wireless communication terminal is measured this from the power level of the signal of base station.In step 112, whether the assessment of this wireless communication terminal determining step 106 meets predetermined criterion subsequently.This predetermined criterion be this signal of for example receiving from base station record level lower than predetermined threshold.When Wireless Telecom Equipment transmits reciprocity signal, this predetermined threshold is selected in certain embodiments corresponding to the expected level of the tolerable from this Wireless Telecom Equipment being disturbed at place, base station.If meet this criterion, operate from step 112 and advance to step 114; 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 supplements base station signal, and subsequently in step 120, base station for example checks, between a upper supplementary base station signal and the base station signal---signal detecting in step 104---that previously detected difference power whether detected.If difference power do not detected, allow this wireless communication terminal to proceed equity transmission and operate to advance and get back to step 118 to monitor supplementary base station signal from step 120; Yet if difference power detected, 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 sub-step 124,126 and 128.In sub-step 124, this wireless communication terminal checks whether the power level of a supplementary base station signal drops among acceptable scope.If the power level of a upper supplementary base station signal is too high, this may indicate the too close base station of wireless communication terminal and transmit and will cause excessive interference from the equity of this wireless communication terminal from the angle of base station receiver, and such transmission is not allowed to thus.Alternatively, if the power level of a upper supplementary 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 used in the frequency spectrum corresponding to dissimilar---for example, corresponding to different service suppliers and/or different technology---region in, therefore and the transmission of wireless communication terminal is not allowed to.If the power level of a supplementary base station signal, not in acceptable scope, operates from sub-step 124 and advances to sub-step 126 on determining in sub-step 124; Otherwise operation advances to sub-step 128 from sub-step 124.
In sub-step 126, this wireless communication terminal is adjusted its transmitting power according to above-mentioned difference power and is proceeded equity transmission.Sometimes, adjust transmitting power and comprise according to above-mentioned difference and reduce transmitting power; And other time, according to above-mentioned difference, adjust transmitting power 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 the signal of base station has increase, radio communication reduces its reciprocity command transmitting power level.Alternatively, if the power level that records that wireless communication terminal detects from the signal of base station has and reduces, radio communication increases its reciprocity command transmitting power level.And in the time of other other, according to above-mentioned difference, adjust wireless communication terminal transmitting power and comprise transmitted power level is maintained to the upper limit level that binds.Operation advances to step 118 from sub-step 126, at this wireless communication terminal, monitors supplementary base station signal.
Turn back to sub-step 128, in sub-step 128, this wireless communication terminal is adjusted to 0 and stop equity transmission by its transmitting power.Operation advances to step 104 from sub-step 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 being coupled via bus 2312, and in bus 2312, various unit can interchange of data and information.Memory 2310 comprises routine 2322 and data/information 2324.Such as the routine 2322 in the processors such as CPU 2306 execute stores 2310, also by the data/information 2324 in memory 2310, control operation the implementation method of wireless terminal 2300, for example method of flow process Figure 100 of Fig. 1.
For example the receiver module 2302 of OFDM receiver is coupled to reception antenna 2314, and wireless terminal receives signal via this antenna.The signal of receiving for example comprises during the scheduled time interval that uplink cell signaling is suspended therein by base station to being just used for carrying out by this base station the broadcast singal transmitting in the frequency band of uplink cell communication, such as beacon signal.The signal of receiving also comprises the reciprocity signal of the wireless terminal operating under peering pattern from other, above-mentioned these reciprocity signals are passed on base station uplink frequency band, and among these reciprocity signals, at least some are to be communicated during uplink cell communication is active interval.Receiver module 2302 also comprises the tuner module 2316 of the frequency band for selecting to 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 the assessment of the signal from base station to detecting.For example, the appearance of predetermined landing signal (for example beacon signal) of---for example specific high power OFDM frequency modulation or a frequency modulation group in OFDM code element---shows that this up link band also can be used for peer-to-peer communications and uses in certain embodiments in the potential cellular uplink bandwidth being just scanned, coupling predetermined format to be detected.Continue this example, the power level of receiving of the base station broadcast signal in 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 just using base station in certain embodiments for it.In certain embodiments, tuner module 2320 is configured to transmitter 2304 to be tuned to some that use among the group of frequencies of just using in uplink cell band, but needs not to be whole.For example, peer-to-peer communications band is the subset of its corresponding uplink cell communication band in certain embodiments.Among these reciprocity signals that are launched, at least some are to use with the identical air link resources that is used for cellular uplink signaling to transmit.In certain embodiments, receiver module 2302 and transmitter module 2304 are used the same antenna.In certain embodiments, these two tuner modules (2316,2320) are set to the same frequency band for peer-to-peer communications, for example identical uplink cell communication band.
User I/O equipment 2308 comprises such as microphone, keyboard, keypad, camera, switch, loud speaker, display etc.User I/O equipment 2308 allows user input data/information, the access output data/information of wireless terminal 2300 and controls at least some functions of wireless terminal 2300, for example, initiates peer-to-peer communications session.
Routine 2322 comprises Communications routines 2326 and wireless terminal control routine 2328.Communications routines 2326 realizes the various communication protocols of being used by wireless terminal 2300.Wireless terminal control routine 2328 is controlled operation the implementation method of wireless terminal 2300.Wireless terminal control routine 2328 comprises scan module 2330, signal evaluation module 2332, receives base station signal power level tracking module 2334, power control module 2336 and reciprocity signalling module 2338.
Data/signal 2324 comprises uplink bandwidth data/information 2344, format information 2350 corresponding to the base station broadcast signal of broadcasting in uplink bandwidth, reproduction schedule information 2352, tuner configuration information 2356, the base station signal 2358 of receiving at time t0 place, the base station signal of receiving (t0) power level information 2360, the base station signal 2362 of receiving at time t1 place, the base station signal of receiving (t1) power level information 2364, power level changes information 2366, the reciprocity signal 2368 generating, and reciprocity signal transmission power level information 2370.
Uplink bandwidth data/information 2344 comprise identify group of frequencies a group or more groups information (information 2346 of sign first frequency group ..., identify the information 2348 of N group of frequencies).For example, in the different piece of WAN cellular communication system of using FDD, utilize different up link FDD bands, and information 2346 sign the first up link band and corresponding the first tuner settings, and different up link band and the corresponding different tuner settings of information 2348 sign.For example, the information 2346 of sign first frequency group comprises that sign is as up link FDD cellular communication band and for one group of information of adjoining OFDM frequency modulation of peer-to-peer communications.
Format information 2350 corresponding to the base station broadcast signal of broadcasting in uplink bandwidth comprises for characterizing and identify the information of such base station broadcast signal.For example, by base station, to the specified beacon signal transmitting in uplink bandwidth, for example, in a small group (1 to 3) the OFDM frequency modulation of OFDM code element, arrange the energy of equal quantities in certain embodiments, and transmit this signal with relatively high power level.Format information 2350 comprises the information for example identifying corresponding to the frequency modulation group of beacon signal.
Reproduction schedule information 2352 comprises reproduction cellular uplink and downlink schedule information and equity reproduction schedule information.Reproduction schedule information 2352 comprises the information 2354 of sign base station to the scheduled time of broadcasting in uplink bandwidth.For example, information 2354 comprises when sign scan module 2330 should expection can receive the information from the broadcast singal of base station.
Tuner configuration information 2356 comprises the information of the setting of sign tuner module 2316 and 2320.In certain embodiments, in response to base station broadcast signal being detected in the up link band being just scanned, wireless terminal 2300 signs also can be used for the uplink cell band of peer-to-peer communications, and tuner module 2320 is arranged to and the current identical setting being configured to of tuner module 2316.
The base station signal 2358 of receiving at time t0 and the base station signal 2362 of receiving at time t1 are corresponding to the broadcast singal being detected at different time by scan module 2330.These base station broadcast signals of receiving 2358,2362 are assessed by signal evaluation module 2332 use power measurement module 2342, thereby acquisition is received base station signal t (0) power level 2360, received base station signal t (1) power level 2364 respectively.It is the output of receiving base station signal power level tracking module 2334 that power level changes information 2366, and as input, is controlled the transmitted power level of reciprocity signal by power control module 2336.
Scan module 2330 scanning uplink bandwidths are to detect the signal from base station.For example, scan module 2330 scanning base station uplink bandwidth---for example, the base station uplink bandwidth of being with as the FDD for cellular communication---search for to detect by base station to for example appearance of beacon signal of broadcast singal transmitting in this uplink bandwidth.In certain embodiments, if scan module 2330 could not detect the appearance of base station broadcast signal in the uplink bandwidth being just scanned, the potential up link that scan module 2330 is switched to replacement is brought line scanning into.In various embodiments, this scan module continues to monitor supplementary base station signal after the appearance that the first broadcast singal from base station detected and after transmitting reciprocity signal.
The detected signal from base station of signal evaluation module 2332 assessment.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, transmission mode evaluation module 2340 is attempted such as receiving that the pattern that frequency modulation group that the power level that detects in OFDM code element is relatively high etc. detects matches with the information of the sign expection signal of storing.In certain embodiments, the frequency modulation group sequence that this pattern comprises change---for example jumping in time according to preassigned pattern---.Power measurement module 2342 is measured this power level from the signal of base station, the power level of the beacon signal from base station for example having transmitted in up link band.In certain embodiments, beacon signal is to comprise in OFDM code element the signal that is less than 3 frequency modulations.In various embodiments, this wireless terminal continues the supplementary signal that assessment detects from base station, for example, measures the power level of the supplementary broadcast singal of receiving.
Receive the change of receiving power level of the broadcast singal from base station that signal power level tracking module 2334 assessments in base station detect.The transmitted power level of the reciprocity signal being transmitted by wireless terminal 2300 is controlled in the change of the 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 power and adjusts reciprocity transmitting power in response to receiving of the base station broadcast signal in succession received being detected.Sometimes, power control module 2336 reduces reciprocity transmitting power, and this reduces to be in response to the persistent surveillance of base station signaling.
Equity signalling module 2338 generates reciprocity signal 2368, and controls transmitter module 2304 to transmit such signal according to the power level of reciprocity signal transmission power level 2370.This equity transmitted power level is the output of power control module 2336.
Fig. 3 operates flow process Figure 200 of the illustrative methods of base station according to various embodiment.Operation starts from step 202---and in this base station, powered on and initialization, and advanced to step 204.
In step 204, the uplink signal that transmit to this base station from cellular communication apparatus be received in uplink band during the first period in base station.Operation advances to step 206 from step 204.
In step 206, transmit during the second period base station.Step 206 comprises sub-step 208 and 210, and it can be and be executed in parallel sometimes.In sub-step 208, base station is used second frequency band different from above-mentioned the first frequency band to transmit at least some among above-mentioned cellular communication apparatus, and this second frequency band is downlink band.In sub-step 210, broadcast singal is transmitted in base station in above-mentioned uplink band.In certain embodiments, to the broadcast singal transmitting in this uplink band, be beacon signal, for example in OFDM code element, comprise the OFDM beacon signal that is less than 3 OFDM frequency modulations.In certain embodiments, to the broadcast singal transmitting in this uplink band, be power emission level controling signal.
In certain embodiments, these uplink signals from cellular communication apparatus are being in the situation that exist to the peer-to-peer communications signal disturbing with these uplink signals transmitting in this uplink band and receive during the first period.Thus, this uplink band is also used to reciprocity signaling simultaneously.
Fig. 4 is according to the illustration of 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, also transmit such as broadcast singals such as beacon signals to support peer-to-peer communications in uplink communication band base station 2400.During the reproduction that in certain embodiments, realizes this base station based structures in base station 2400 to the uplink signalling of hanging wittingly cellular autofluorescence communication equipment during transmitting the predetermined interval of broadcast singal in uplink communication band up.In some such embodiment, the relative time that the broadcast singal of distributing to base station 2400 enters up link band was compared and is less than or equals 2% with the time of distributing to the wireless terminal cellular signaling that is directed to this base station and enter up link band.In various embodiments, allow uplink communication band to communicate by letter with cellular uplink and utilize concomitantly for reciprocity signaling.In some such embodiment, base station 2400 management is from the interference of these peer devices, and this interference management comprises that change is to the transmitted power level of the broadcast singal transmitting in 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.
Base station 2400 comprises receiver module 2402, transmitter module 2404, processor 2406, I/O interface 2408 and the memory 2410 being coupled via bus 2412, and in bus 2412, various unit can swap data and information.Memory 2410 comprises routine 2418 and data/information 2420.For example the routine in processor 2406 execute stores 2410 of CPU 2418 is also controlled operation the implementation method of base station, for example method of flow process Figure 200 of Fig. 3 by the data/information 2420 in memory 2410.
For example the receiver module 2402 of OFDM receiver is coupled to reception antenna 2414, via this antenna base station 2400 during the first period in receiving uplink frequency band from cellular communication apparatus to base station 2400 uplink signals that transmit.From the uplink signal of cellular communication apparatus, during the first period, be in the situation that exist to the peer-to-peer communications signal disturbing with these uplink signals transmitting in this uplink band and receive.
For example the transmitter module 2404 of OFDM transmitter is coupled to transmitting antenna 2416, via this antenna base station 2400, use downlink band to transmit at least some among these cellular communication apparatus, and during the second period, in above-mentioned uplink band, transmitting broadcast singal, wherein this downlink band and wherein above-mentioned first period and this second period not crossover different from this uplink band.Down link signal for cellular communication apparatus comprises for example down link band beacon signal, appointment 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 for down link cellular signaling, and the second transmitter submodule 2407 is for transmitting the broadcast singal such as beacon signal to uplink band.
Use an advantage of the realization of the first and second transmitter submodules 2405,2507 to be separately 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 passing on wherein the broadcast singal of supporting for equity.For example, receiver module 2402 and the second transmitter submodule 2407 can be tuned to identical UL FDD band, and the first transmitter module 2405 can be tuned to DL FDD band, and down link cellular communication can continue by uninterrupted mode.Thereby another advantage of this method is for example to enter in base station signaling in order to change uplink timing structure together with some software modifications by inserting the second transmitter submodule 2407 in the existing base station to supporting cellular communication, hangs up uplink cell during the short interval of uplink band and communicate by letter, make this base station be suitable for utilizing identical up link FDD to bring support peer-to-peer communications.
I/O interface 2408 is coupled to other network nodes by 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 to be connected into cellular communication apparatus a little as its network to participate in using different base station and be connected in the communication session of another cellular communication apparatus a little as its network by base station 2400 being coupled to backhaul network.
Routine 2418 comprises Communications routines 2422, such as the broadcast singal generation modules 2424 such as beacon signal, reciprocity interference management module 2426, cellular downlink module 2428 and cellular uplink module 2430.Communications routines 2422 realizes the various communication protocols of being used by base station 2400.Broadcast singal generation module 2424 generates the broadcast singal being used by cellular communication apparatus and peer communications devices.In certain embodiments, what by module 2424, generated can pass on base station identification information such as at least some in the down link band broadcast singals such as down link band beacon signal, for example cellular cell, sector and/or be connected into dot information.In certain embodiments, what by module 2424, generated is transmitted power level control signals such as at least some in the up link band broadcast singals such as up link band beacon signal, for example, for controlling the signal of the maximum transmit power level of peer device.
In certain embodiments, broadcast singal generation module 2424 comprises for generating the up link band beacon signal generation module 2432 of the beacon signal that will transmit to uplink band and for generating the down link band beacon signal generation module 2434 of the beacon signal that will transmit to downlink band.In various embodiments, up link band beacon signal generation module 2432 comprises power level module 2436, 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, down link band beacon signal generation module 2434 comprises Base Station Identification module 2438, for base station identification information being brought into down link band beacon signal.In certain embodiments, generate corresponding to base station, to be connected into down link band beacon signal be a little to transmit with identical transmitted power level, and the transmitted power level of the up link band beacon signal generating different time be for example as to cause about base station receiver 2402 receive cellular communication uplink signals interference reciprocity signaling management a part and on different capacity level, transmit.
Equity interference management module 2426 manages by being included as the operation that will power level be set to the broadcast singal transmitting in uplink band such as beacon signal etc. the reciprocity signaling interference level just experiencing at receiver module 2402 places.In certain embodiments, equity interference management module 2426 is determined the power level increasing to the broadcast singal transmitting in up link band when its expectation reduces the interference level from reciprocity signaling, and when its expectation allows interference level from reciprocity signaling to increase, reduces the power level of the broadcast singal that transmits in up link band.
Cellular downlink module 2428 is controlled generation and the transmission of the down link signal 2450 that is directed to cellular device.Cellular uplink module 2430 is controlled from the reception of the uplink signal of cellular communication apparatus and is recovered information from these signals, thereby obtains the uplink signal 2448 from cellular device of receiving.
When data/information 2420 comprises/frequency structural information 2440, broadcast singal format information 2442, generate will to the broadcast singal 2444 transmitting in up link band, generate will be to the broadcast singal 2446, the uplink signal 2448 from cellular device of receiving that transmit in down link band and the down link signal 2450 that is directed to cellular device.Time/frequency structural information 2440 comprises reproduction time structure information 2452, uplink band information 2454 and downlink tone information 2456.Reproduction time structure information 2452 comprises sign for the information 2458 of the time interval of uplink signal and identifies the information 2460 for entering the time interval of up link band for base station broadcast signal.Sign comprises for the information 2458 of the time interval of uplink signal, for example, identify information between access area and sign at least one the interval information among uplink control signaling and uplink traffic signaling.Sign for base station broadcast signal, enter up link band time interval information 2460 signs for for base station such as broadcast singal transmission such as beacon signals, enter the interval of up link band, during this, normal uplink cell communication signaling is suspended.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, thereby be convenient to reciprocity Wireless Telecom Equipment, recovers this broadcast singal.In certain embodiments, base station broadcast is entered to up link band and be less than or equal to 2% with the ratio that cellular uplink signaling enters the time distribution of up link band.
Uplink band information 2454 comprise sign by by base station 2400 as the information of for example adjoining OFDM frequency modulation group equifrequent group of cellular uplink FDD band and corresponding to the carrier wave frequency information of this frequency band.This uplink band also will be used as peer-to-peer communications band, and wherein at least some peer-to-peer communicationss are used as uplink cell communication by identical air link resources.Broadcast singal is also transmitted in base station 2400 in this uplink communication band.Downlink tone information 2456 comprise sign by by base station 2400 as the information of for example adjoining OFDM frequency modulation group equifrequent group of cellular downlink FDD band and corresponding to the carrier wave frequency information of this frequency band.
Broadcast singal format information 2442---for example identifies the information of the form of the beacon signal transmitting in uplink band---and comprises and for example identify and will be used for representing for example information of the frequency modulation group of 1 to 3 frequency modulation of this beacon signal.In certain embodiments, corresponding to the frequency modulation group of beacon signal, according to predetermined frequency hop sequences, jump in time, and such information is also included within information 2442.
The broadcast singal 2444 for up link band generating such as beacon signal etc. is the output of broadcast singal generation module 2424.For some embodiment, information 2444 is the output of up link band beacon signal generation module 2432.The broadcast singal 2444 for down link band generating such as beacon signal etc. is the output of broadcast singal generation module 2424.For some embodiment, information 2446 is the output of down link band beacon signal generation module 2434.
Fig. 5 operates the flow chart 700 of the illustrative methods of the Wireless Telecom Equipment of supporting reciprocity signaling according to various embodiment.Operation starts from step 702, and---at this Wireless Telecom Equipment, powered on and initialization, and advance to step 704---receives the first signal from base station at this this Wireless Telecom Equipment.In certain embodiments, this first signal is to receive for transmit the uplink band of uplink signal to this base station.In some other embodiment, this first signal is to receive in the frequency band of the downlink band as being used by above-mentioned base station, and reciprocity signal transmits in another frequency band.In such embodiments, for this another frequency band of reciprocity signaling, can be, and be for transmit the uplink band of uplink signal to this base station sometimes.With uplink band, passing on this way from the first signal of base station to have reciprocity Wireless Telecom Equipment can remain in on the same frequency band of reciprocity signal and still can monitor this advantage of first signal from base station.This is convenient to simple designs and/or low-cost realization of this equity Wireless Telecom Equipment.Yet, at place, base station, can increase complexity, because transmit in the frequency band that base station will previously never be used for transmitting to it now.
Alternatively, use the down link of base station to bring passing on the way of first signal is to be more easy to from the angle of base station; Yet reciprocity Wireless Telecom Equipment just requires to increase complexity and/or cost, because it need to monitor two frequency bands, for example, relate to a plurality of receivers and/or between frequency band, switch related complexity.
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 excessively a plurality of.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 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 for reciprocity signaling from step 706, and operation advances to step 722 for going to the uplink signal of base station 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 sub-step 710 and 712.In sub-step 710, this Wireless Telecom Equipment is used the first function---its for first receive signal power level compared with for higher than this first receive second of signal power level receive signal power level by reciprocity transmission power limit on lower level---determine the maximum equity transmitted power level that transmission is permitted.Subsequently in sub-step 712, this Wireless Telecom Equipment is determined actual reciprocity transmitted power level according to the reciprocity transmitted power level of determined maximum and the reciprocity signal that receives from the second peer communications devices.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 base station signal and reciprocity signal affect in certain embodiments.This equity signal is passed in certain embodiments and/or is overstock at least one among information, equity stand-by period information, noise information, error rate information, service class information and reciprocity power control information for the reciprocity channel condition information of deriving, reciprocity data rate information, reciprocity data.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 specifically service class, the reciprocity transmission level of this reality can surpass sometimes---for example, override---the reciprocity transmitted power level of the determined maximum of base station signal based on receiving.Operation advances to step 714 from step 708.
In step 714, this Wireless Telecom Equipment is being received the secondary signal from base station with the time of receiving the asynchronism(-nization) of 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 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 peer-to-peer communications signal determining that it should be prevented, until be allowed to transmit reciprocity signal from measurement from this Wireless Telecom Equipment of power determination of another signal of base station.
Turn back to step 722, in step 722, this Wireless Telecom Equipment is controlled at the transmitting power of transmitted signal than on the higher transmitted power level of the above-mentioned reciprocity transmitted power level that at least some reciprocity signal transmission are used.Step 722 comprises sub-step 724.In sub-step 724, this Wireless Telecom Equipment when the transmitting power of controlling to base station with the second function to receive that based on measured first signal power determines that this second function is different from above-mentioned the first function to the transmitting power of the signal of this base station transmission.In certain embodiments, reciprocity transmission signal power level is at least than the low 10dB of transmitted power level of the signal transmitting to base station.
The illustration that Fig. 6 is according to the example wireless communication device 2900 of the support peer-to-peer communications of various embodiment---such as such as wireless terminals such as mobile nodes---.Exemplary communication device 2900 can, and sometimes really use WAN up link to bring and carry out therein peer-to-peer communications.The signal that example wireless communication device 2900 receives from base station, it determines with this signal whether it is allowed to transmit reciprocity signal and/or reciprocity transmission power level information in the up link band of base station, for example maximum reciprocity transmitted power level.
Wireless Telecom Equipment 2900 comprises receiver module 2902, transmitter module 2904, user I/O equipment 2908, processor 2906 and the memory 2910 being coupled via bus 2912, and in bus 2912, various unit can interchange of data and information.Memory 2910 comprises routine 2918 and data/information 2920.
For example the routine in processor 2906 execute stores 2910 of CPU 2918 is also controlled operation the implementation method of Wireless Telecom Equipment 2900 by the data/information 2920 in memory 2910.
For example the receiver module 2902 of OFDM receiver is coupled to reception antenna 2914, and Wireless Telecom Equipment 2900 receives the signal from base station via this antenna, and this receives that signal is for determining reciprocity transmission power level information.Receiver module 2902 also receives peer-to-peer communications signal.In certain embodiments, sometimes, receiver module 2902 receive from just by this Wireless Telecom Equipment as in wide area network the down link signal that is connected into base station a little---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, and Wireless Telecom Equipment 2900 transmits reciprocity signal via this day other Wireless Telecom Equipments of alignment.In certain embodiments, during some time interval, transmitter module 2904 transmits uplink signal to base station, and wherein this Wireless Telecom Equipment is in WAN operator scheme---for example, honeycomb operator scheme---under work.
User I/O equipment 2908 comprises such as microphone, keyboard, keypad, mouse, camera, switch, loud speaker, display etc.User I/O equipment 2908 allows user input data/information, the access output data/information of Wireless Telecom Equipment 2900 and controls at least some functions of Wireless Telecom Equipment 2900, for example, attempts initiating peer-to-peer communications session.
Routine 2918 comprises Communications routines 2922 and wireless terminal control routine 2924.Communications routines 2922 realizes the various communication protocols that Wireless Telecom Equipment 2900 is used.Wireless terminal control routine 2924 comprises measurement module 2926, authorization module 2940, reciprocity transmission control module 2941 and reciprocity transmit power control module 2928.At some embodiment---such as supporting that in peer-to-peer communications and the embodiment such as WAN communications such as cellular communications, wireless terminal control routine 2924 comprises wide area network transmit power control module 2936.
The signal from base station that 2926 pairs of measurement modules are received is carried out and is measured.Signal (2942,2944) represents the input of measurement module 2926, and information (2946,2948) represents the output of measurement module 2926.In various embodiments, the measurement of measurement module 2926 is signal power measurements.
Authorization module 2940 can, and sometimes really from receiving that the power that records of base station signal determines that Wireless Telecom Equipment 2900 should be prevented and oneself transmit reciprocity signal.Authorization module 2940 can, and sometimes really from receiving that the power that records of base station signal determines that Wireless Telecom Equipment 2900 is allowed to transmit reciprocity signal.Equity transmission licensing status 2950 is the output of authorization module 2940 input that is used as reciprocity transmission control module 2941.
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, until determine that Wireless Telecom Equipment 2900 is allowed to transmit reciprocity signal.With the reciprocity transmission control module 2941 of equity transmission licensing status 2950, as equity, transmit and enable/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 submodule 2932 and the first function 2934.Equity transmit power control module 2928 is used the first functions 2934---its for first receive signal power level compared with for higher than this first receive second of signal power level receive signal power level by 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 by reciprocity transmission power limit on lower level.
Maximum reciprocity transmitted power level submodule 2930 use the first functions 2934 are determined 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 and the reciprocity signal that receives from the second peer communications devices.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.
Wide area network transmit power control module 2936 is controlled at the transmitting power of the signal transmitting to base station than on the higher transmitted power level of the above-mentioned reciprocity transmitted power level that at least some reciprocity signal transmission are used.WAN transmit power control module 2936 comprises the second function 2938 that is different from the 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 comprises with the second function 2938 that is different from the first function 2934 determines the transmitted power level of the signal that will transmit to this base station with the power level of receiving of the signal from base station based on measured.
For example, receive that base station signal N 2944 measures 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 use the first functions 2934 are processed input 2848 and are obtained the reciprocity transmitted power level 2952 of determined maximum, and WAN module 2936 use the second functions 2938 are processed identical input 2948 and obtained determined maximum WAN transmitted power level 2956---and it is than the higher level of the reciprocity transmitted power level 2952 of determined maximum.
In various embodiments, reciprocity transmission signal power level is at least than the low 10dB of transmitted power level of the signal transmitting to base station.For example, for the identical measured value of base station signal, the reciprocity transmitted power level 2952 of determined maximum is at least than the low 10dB of determined maximum WAN transmitted power level 2956.As another example, in certain embodiments, if wireless terminal be positioned at a location place and the base station signal measurement of receiving based on identical determined reciprocity transmission power level information and WAN transmission power level information, the reciprocity transmitted power level 2954 of determined reality is at least than the low 10dB of determined actual WAN transmitted power level 2958.
Data/information 2920 comprise a plurality of receive from base station measured and for determine transmission power level information signal (receive base station signal 12942 ..., receive base station signal N 2944), signal measurement information corresponding to a plurality of difference (signal 1 metrical information 2946 ..., signal N metrical information 2948).Data/information 2920 also comprises the current equity transmission licensing status information 2950 that whether is allowed to transmit reciprocity signal of indication Wireless Telecom Equipment 2900.Data/information 2920 also comprises as the reciprocity transmitted power level 2952 of 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 frequency modulation group information, downlink tone information 2964---for example, WAN downlink bandwidth information, WAN downlink carrier information and down link WAN frequency modulation group information, and the information 2966 that identifies the location of measured base station signal.In this exemplary embodiment, the WAN uplink band that peer-to-peer communications signaling is used base station just using, wherein these reciprocity signals serve as being directed to the interference of the WAN uplink signal of this base station.The signal that measurement is received by Wireless Telecom Equipment 2900, and utilize this to measure to control the reciprocity transmitted power level of 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 in certain embodiments the information more specifically corresponding to this signal, for example, and some during reproduction in based structures and/or for identifying the concrete frequency modulation information of this signal.
In the various embodiment that support such as WAN communications such as cellular communications at Wireless Telecom Equipment 2900, data/information 2920 also comprises determined maximum WAN transmission power level information 2956 and determined actual WAN transmission power level information 2958, and 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 operates the flow chart 800 of the illustrative methods of the Wireless Telecom Equipment of supporting peer-to-peer communications according to various embodiment.Operation starts from step 802, and---at this Wireless Telecom Equipment, powered on and initialization, and advance to step 804---receives the first signal from base station at this this Wireless Telecom Equipment.In certain embodiments, this first signal is to receive for transmit the uplink band of uplink signal to this base station.In some other embodiment, this first signal is to receive in the frequency band of the downlink band as being used by above-mentioned base station, and reciprocity signal transmits in another frequency band.In such embodiments, for this another frequency band of reciprocity signaling, can be, and be for transmit the uplink band of uplink signal to this base station 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 transmitted power level control parameter.In one exemplary embodiment, step 808 comprises sub-step 810 and 812.In another exemplary embodiment, step 808 comprises sub-step 814 and 816.In another exemplary embodiment, step 808 comprises sub-step 814 and 818.
In sub-step 810, this wireless communications device accesses comprises the memory of the control of the transmitted power level corresponding to the different service class parameter of storing, and subsequently in sub-step 812, this Wireless Telecom Equipment detects the transmitting power corresponding to the service class corresponding with this Wireless Telecom Equipment of storing.
In sub-step 814, this Wireless Telecom Equipment recovers controlling value from the signal being received from above-mentioned base station by this Wireless Telecom Equipment.In certain embodiments, this signal that recovers controlling value from it is the first signal of receiving step 804.Operation advances to one of sub-step 816 and 818 from sub-step 814.In sub-step 816, the controlling value that this Wireless Telecom Equipment recovers this is controlled parameter as transmitted power level.Alternatively, in sub-step 818, the controlling value that this Wireless Telecom Equipment recovers based on this and calculate transmitted power level corresponding to the service class of this wireless terminal and control parameter.
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 the first function and control reciprocity transmitting power, and wherein according to the first function, control reciprocity transmitting power and be included in this first function except above-mentioned receiving power level of recording also used above-mentioned determined transmitted power level to control parameter.Operation advances to step 824 from step 820 via connected node A 822.
In step 824, this Wireless Telecom Equipment is being received the secondary signal from base station with the time of receiving the asynchronism(-nization) of 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 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 peer-to-peer communications signal determining that it should be prevented, until be allowed to transmit reciprocity signal from measurement from this Wireless Telecom Equipment of power determination of another signal of base station.
The illustration that Fig. 8 is according to the example wireless communication device 3000 of the support peer-to-peer communications of various embodiment---such as such as wireless terminals such as mobile nodes---.Exemplary communication device 3000 can, and sometimes really use WAN up link to bring and carry out therein peer-to-peer communications.The signal that example wireless communication device 3000 receives from base station, it determines with this signal whether it is allowed to transmit reciprocity signal in the up link band of base station and/or determines reciprocity transmission power level information, for example maximum reciprocity transmitted power level.
Wireless Telecom Equipment 3000 comprises receiver module 3002, transmitter module 3004, user I/O equipment 3008, processor 3006 and the memory 3010 being coupled via bus 3012, and in bus 3012, various unit can interchange of data and information.Memory 3010 comprises routine 3018 and data/information 3020.
For example the routine in processor 3006 execute stores 3010 of CPU 3018 is also controlled operation the implementation method of wireless terminal 3000, for example method of the flow chart 800 of Fig. 7 by the data/information 3020 in memory 3010.
For example the receiver module 3002 of OFDM receiver is coupled to reception antenna 3014, and Wireless Telecom Equipment 3000 receives the signal from base station via this antenna, and this receives that signal is for determining reciprocity transmission power level information.Receiver module 3002 also receives peer-to-peer communications signal.For example the transmitter module 3004 of OFDM transmitter is coupled to transmitting antenna 3016, and Wireless Telecom Equipment 3000 transmits reciprocity signal via this day other Wireless Telecom Equipments of alignment.
User I/O equipment 3008 comprises such as microphone, keyboard, keypad, mouse, camera, switch, loud speaker, display etc.User I/O equipment 3008 allows user input data/information, the access output data/information of Wireless Telecom Equipment 3000 and controls at least some functions of Wireless Telecom Equipment 3000, for example, attempts initiating peer-to-peer communications session.
Routine 3018 comprises Communications routines 3022 and wireless terminal control routine 3024.Communications routines 3022 realizes the various communication protocols that Wireless Telecom Equipment 3000 is used.Wireless terminal control routine 3024 comprises measurement module 3026, power level control parameter determination module 3028, service class identification module 3034 and reciprocity transmit power control module 3036.
The signal from base station that 3026 pairs of measurement modules are received is carried out and is measured.Receive that base station signal 13044 represents the input of measurement module 3026, and signal 1 metrical information 3046 represents the output of measurement module 3026.In various embodiments, the measurement of measurement module 3026 is signal power measurements.
Power level is controlled parameter determination module 3028 and is determined transmitted power level control parameter.In certain embodiments, power level control parameter determination module 3028 is controlled parameter by transmitted power level and is arranged to detected control parameter 3048.In certain embodiments, power level control parameter determination module 3028 is determined transmitted power level control parameter according to detected control parameter 3048.In certain embodiments, power level is controlled parameter determination module 3028 and transmitted power level is controlled to the control parameter that parameter is arranged to recover, the control parameter 3050 for example decoding.In certain embodiments, power level control parameter determination module 3028 for example, is determined transmitted power level control parameter according to the control parameter---the control parameter 3050 decoding---recovering.In certain embodiments, power level control parameter determination module 3028 is determined transmitted power level control parameter according to the service class 3052 identifying.In certain embodiments, power level control parameter determination module 3028 for example, is determined transmitted power level control parameter according to detected control parameter 3048 and the control parameter---the control parameter 3050 decoding---recovering.In certain embodiments, power level is controlled parameter determination module 3028 by comprising following i) and operation one of ii) determine that transmitted power level controls parameter, wherein i) value recovering is controlled to parameter and ii as transmitted power level) controlling value based on recovering and calculate transmitted power level control parameter 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, such as 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 equipment, the dissimilar data that will pass on, different amounts.The current service rank identifying is appointment in institute's identification service rank 3052.
Power level is controlled parameter determination module 3028 and is comprised retrieval module 3030 and control parameter and recover module 3032.The transmitted power level corresponding to the service class corresponding with Wireless Telecom Equipment 3000 that retrieval module 3030 retrieve stored is controlled parameter.Thus, retrieval module 3030 is by institute's identification service rank 3052 as input, and access services level is clipped to power level and controls argument mapping information 3060 and obtain the control parameter being associated with this input service class.The control parameter 3048 detecting is the output of retrieval module 3030.
Control parameter recovery module 3032 and recover controlling value from the signal being received from base station by communication equipment 3000.In certain embodiments, this controlling value is from the measured same signal of measurement module 3026---for example, receive what base station signal 13044 recovered.The control parameter 3050 decoding is to control the output that parameter is recovered module 3032.In certain embodiments, this controlling value recovering is 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 submodule 3040 and the first function 3042.
Maximum reciprocity transmitted power level submodule 3038 use the first functions 3042 are determined 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 and the reciprocity signal that receives from the second peer communications devices.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 determining the reciprocity transmitted power level 3056 of determined maximum---except for example measured the receiving power level from signal 1 metrical information 3046 also used determined transmitted power level to control parameter 3054.In certain embodiments, some or all in the function of power level control parameter determination module 3028 are included as a part for reciprocity transmit power control module 3036.
Data/information 3020 comprises the signal of receiving from base station---receive base station signal 13044, its measured module 3026 is measured to obtain for determining signal 1 metrical information 3046 of transmission power level information.Data/information 3020 also comprises that 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 argument mapping information 3060 and timebase frequency structural information 3070.In certain embodiments, data/information 3020 comprise the service class 3052 identifying, the control parameter 3048 detecting and the control parameter 3050 that decodes among one or more.
The control parameter 3048 detecting 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 decoding is to control parameter to recover the output of module 3032 and the information that representative recovers from the base station signal of receiving.In certain embodiments, the base station signal of receiving that recovers this information from it is the same base signal that carries out power measurement---for example, receive base station signal 13044.In certain embodiments, this controlling value recovering is interference level indicator value.
The service class 3052 identifying is the output of service class identification module 3034, and is used as the input of retrieval module 3030.By the service class 3052 identifying, select corresponding control parameter value.For example, if the service class identifying 3052 indication service class M 3064, retrieval module 3030 detects and controls parameter value M 3068, and it is stored in to detect and controls in parameter 3048.
It is the output that power level is controlled parameter determination module 3028 that transmitted power level is controlled parameter 3054.It is to determine according to one or more among the service class 3052, the control parameter 3048 detecting that identify and the control parameter 3050 that decodes that transmitted power level is controlled parameter 3054.Transmitted power level is controlled the input that parameter 3054 is used as 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 argument mapping 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 frequency modulation group information, downlink tone information 3074---for example, WAN downlink bandwidth information, WAN downlink carrier information and down link WAN frequency modulation group information, and the information 3076 that identifies the location of measured and/or base station signal that decode.In this exemplary embodiment, the WAN uplink band that peer-to-peer communications signaling is used base station just using, wherein these reciprocity signals serve as being directed to the interference of the WAN uplink signal of this base station.The signal that measurement is received by Wireless Telecom Equipment 3000 and this measurement are used to control the reciprocity transmitted power level of Wireless Telecom Equipment.This base station signal of receiving is passed in certain embodiments in WAN up link band, and in other embodiments, this signal is passed in WAN down link band.In certain embodiments, the signal that is received and decoded with recovery information---for example, recovering interference indicator value---by Wireless Telecom Equipment 3000 is also used to control the reciprocity transmitted power level of Wireless Telecom Equipment.In certain embodiments, the same base signal for power measurement is from it, to recover the signal decoding of this information.In some other embodiment, there are two different signals of receiving from base station, the receiving that power level is measured and utilize an of signal, and another signal is passed on encoded power control information---encoded interference indicator value for example.From it, recover such as the base station signal of the information such as interference level indicator value 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 recovering for information.In certain embodiments, information 3076 sign is corresponding to the information more specifically of the one or more signal, for example, and some during reproduction in based structures and/or for identifying the concrete frequency modulation information of the one or more signal.
Fig. 9 is that diagram comprises communication system 302, describes the illustration 300 that frequency band is used an exemplary embodiment of the table 304 of information and the table 306 of the exemplary reciprocity emission power of wireless terminal level information of diagram.Example communication system 302 comprises the base station 308 with the corresponding cellular coverage being represented by cellular cell 310.Base station 308 is via being coupled to other network nodes such as the network links such as optical fiber link 309, such as other base stations, router, AAA node, home agent node, control node etc., and/or internet.In communication system 302, also have the communication of a plurality of supporting cellulars wireless terminal (WT 1 312 ..., WT N 314).Honeycomb WT (312,314) is coupled to base station 308 via wireless 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 shown on two time points, and is represented as element 324 and the element on time t1 326 on time t0.WT 1 ' motion is indicated by arrow 334.WT3 ' is shown on two time points, and is represented as element 336 and the element on time t1 338 on time t0.WT 3 ' motion is indicated by arrow 346.Peer-to-peer communications between WT1 ' and WT2 ' 328 is indicated by arrow 330 and 332.Peer-to-peer communications between WT3 ' and WT4 ' 340 is indicated by arrow 342 and 344.
Beacon signal 320 is transmitted in base station in this up link band.This beacon signal is detected and measures by these reciprocity wireless terminals.Equity wireless terminal uses this is received to the power measurement of beacon signal determines whether this wireless terminal is allowed to transmit reciprocity signal and when transmission is allowed to, controls transmitted power level, for example, and maximum transmit power level.The base station 308 exemplary reciprocity confined area of empty arrow circle 322 indication around, is constrained to and can not transmits signal at this reciprocity wireless terminal.In the close region of base station 308, from the transmission on the level of using in the reciprocity signaling of being in of reciprocity wireless terminal from attempt recovering and the comfortable honeycomb mode of decode operate wireless terminal (312 ... 314) the angle of base station receiver of uplink signal caused excessive interference, and reciprocity wireless terminal transmits and is not allowed thus.
Now band information table 304 will be described.First row 348 indication frequency band A are used as the cellular downlink band for the signal that transmit, that be intended to be received by cellular radio terminals from base station.Secondary series 350 indication frequency band B are used as: (i) for the cellular uplink band from cellular radio terminals signal transmission, that be intended to be received by base station; (ii) for pass on by base station, transmitted and be intended to be received and the frequency band of the reciprocity beacon signal used by reciprocity wireless terminal; And the reciprocity frequency band that (iii) is intended to the signal for transmitting from reciprocity wireless terminal and being intended to be received by 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 points, or t0 or t1.The 3rd row 356 sign is corresponding to the wireless terminal in same a line, corresponding to the transmission power level information of time indicated in same a line.The information indication of table 306 is from time t0 to time t1, and the transmitted power level of WT1 ' increases.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 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 towards base station, 308 move, and from the angle of WT3 ' can expect beacon signal 320 record power level at this moment between during increase.Can also observe WT 3 ' at this moment between during remain on outside restricted area 322.Power level described in table 306 can be to the admissible maximum transmit power level of this wireless terminal.Alternatively, the power level described in 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 according to the illustration of 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 the reciprocity signaling of a plurality of support and wide area network signaling (wireless terminal 3408 ..., wireless terminal M 414).
Base station 402 comprises reciprocity interference management module 416, interference signal measurement module 418 and transmitter module 420.Equity interference management module 416 is determined reciprocity transmitted power level controlling value.Transmitter module 420 for example transmits determined reciprocity transmitted power level controlling value as the indicator value of passing on.Interference signal measurement module 418 measure signal interference and to the measured signal interfere information of reciprocity interference management module 416 supply during the empty ul transmissions period.
Wireless terminal 1404 comprises receives signal power measurement module 422, reciprocity signal transmission power control module 424, difference update module 426 and memory 428.Memory 428 comprises the predetermined difference value pointer information 430 of storing in certain embodiments.The predetermined difference value pointer information 430 of storing comprise a plurality of can by the indicating device of base station signaling (indicating device 1442 ..., indicating device N 444) and respectively corresponding different value (difference 1446 ..., difference N 448).
The power of---for example from the base station 402---signal received of receiving that signal power measurement module 422 measures from base station.Equity signal transmission power control module 424 is controlled reciprocity signal transmission power level according to the first function as the function that records power of the signal from base station.In various embodiments, this equity signal transmission power level is permitted maximum equity signal transmission power level.Difference update module 426 receives from the difference indicator value such as 402Deng base station, base station and the indicator value received based on this upgrades the first function.In certain embodiments, this difference is scheduled volume, and the memory 428 of storage indicator and corresponding predetermined difference value is accessed, and the value of accessing is used by the first function.
Wireless terminal 2406 comprises receives signal power measurement module 432 and wide area network signal transmission power control module 434.Receive that signal power measurement module 432 measures the power level of the signal from receiving such as 402Deng base station, base station.Wide area network signal transmission power control module 434 is controlled the wide area network signal transmission power level about wireless terminal 2406 according to the second function as the function that records power of the signal of receiving from base station, and this second function is different from the first function.In certain embodiments, this wide area network signal transmission power level is maximum wide area network signal transmission power level.In various embodiments, for the measured set-point of receiving signal power, second function ratio the first function is determined higher transmitted power level.In some such embodiment, by the first function and the second function, for the difference in dB between the measured determined transmitting power of the set-point of receiving signal power, be at least 10dB.
Wireless terminal 3408 comprises receives signal power measurement module 436, reciprocity signal transmission power control module 438 and wide area network signal transmission power control module 440.Receive the power level of the signal that 436 measurements of signal power measurement module are received from base station.Equity signal transmission power control module 438 is controlled reciprocity signal transmission power level according to the first function as the function that records power of the signal from base station.Wide area network signal transmission power control module 440 is controlled wide area network signal transmission power level according to the second function as the function that records power of the signal of receiving from base station, and this second function is different from above-mentioned the first function.In various embodiments, for the measured set-point of receiving signal power, the first function that the second function ratio module 438 that module 440 is used is used is determined higher transmitted power level.In some such embodiment, by the first function and the second function, for the difference in dB between the measured determined transmitting power of the set-point of receiving signal power, be at least 10dB.In certain embodiments, the first function that the first function that the module 438 of WT 3408 is used is used with the module 424 of WT 1 404 is identical.In certain embodiments, the second function that the second function that the module 440 of WT 3 408 is used is used with the module 434 of WT 2 406 is identical.
Figure 11 operates the flow chart 500 of the illustrative methods of base station according to various embodiment.The step 502 that operates in of this illustrative methods starts and advances to step 504.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 being performed on the basis of just carrying out, operation base station maintain is adjoined base station synchronization with at least one, thereby maintaining the uplink null period is adjoining between base station synchronously.In various embodiments, the uplink null period is in the uplink bandwidth that wherein base station is used, to have at least sub-fraction not to be used to wittingly transmit to base station the period of uplink signal.
Turn back to step 506, in step 506, ambient interferences is measured in 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 base station subsequently.Step 510 comprises sub-step 512.In sub-step 512, base station generates this first up-link transmission power controlling value by the above-mentioned measured ambient interferences of interference budget information consolidation of storing.Sub-step 512 comprises sub-step 514,516,518 and 520.In sub-step 514, 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, operated from sub-step 514 and advance to sub-step 516; Otherwise operation advances to sub-step 518 from sub-step 514.
In sub-step 516, previous up-link transmission power controlling value is revised in 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 sub-step 518, in sub-step 518, base station determines that whether measured ambient interferences is lower than the indicated interference budget limit of the above-mentioned interference budget information by storing, for example, and at least low predetermined threshold value.If determine that in sub-step 518 thereby measured ambient interferences is the test philosophy that met lower than this interference budget limit, operation just advances to sub-step 520 from sub-step 518.In sub-step 520, previous up-link transmission power controlling value is revised in base station, and modified transmitting power controlling value increases to reciprocity transmitted power level on the level that the level controlled than previous transmitting power controlling value is higher.
Operation advances to step 522 from step 510, and wherein determined the first up-link transmission power controlling value is transmitted in base station.
Figure 12 operates the flow chart 600 of the illustrative methods of base station according to various embodiment.The step 602 that operates in of this illustrative methods starts and advances to step 604.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 being performed on the basis of just carrying out, operation base station maintain is adjoined base station synchronization with at least one, thereby maintaining the uplink null period is adjoining between base station synchronously.In various embodiments, the uplink null period is in the uplink bandwidth that wherein base station is used, to have at least sub-fraction not to be used to wittingly transmit to base station the period of uplink signal.
Turn back to step 606, in step 606, ambient interferences is measured in 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 base station subsequently.Operation advances to step 612 from step 610.In step 612, determined the first up-link transmission power controlling value is transmitted in base station.Operation advances to step 614 from step 612.
In step 614, ambient interferences is measured in base station during the second uplink null period, and subsequently in step 616, 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, base station changes definite the second up-link transmission power controlling value according to the measured ambient interferences corresponding to the second uplink null period and the determined ambient interferences that records, and in step 620, determined the second up-link transmission power controlling value is transmitted in base station subsequently.Operation advances to step 622 from step 620.
In step 622, ambient interferences is measured in base station during the 3rd uplink null period, and in step 624, the change that records ambient interferences is determined from the measurement corresponding to the second uplink null period and the 3rd uplink null period in base station.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 base station.Operation advances to step 628 from step 626.
In step 628, base station between the period, records the change of ambient interferences 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 previously transmit 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 base station.
Figure 13 is according to the illustration of the exemplary base 2800 of various embodiment.Exemplary base 2800 management are disturbed from the reception of the reciprocity wireless terminal transmitting in the identical air link resources to for its wide area network uplink communication.Exemplary base 2800 is determined and is transmitted the up-link power control signal that reciprocity wireless terminal utilizes when determining its transmitted power level.In certain embodiments, the up-link power control signal that transmit base station 2800 is also used for controlling transmitted power level by the wireless terminal that this base station is connected into a little and transmits to this base station uplink signal as network.
Exemplary base 2800 comprises receiver module 2802, transmitter module 2804, processor 2806, I/O interface 2808 and the memory 2810 being coupled via bus 2812, and in bus 2812, various unit can interchange of data and information.
For example the receiver module 2802 of OFDM receiver is coupled to reception antenna 2814, the uplink signal that---for example works and base station 2800 is connected into wireless terminal a little as network---from wireless terminal via this antenna reception in base station 2800 under honeycomb mode.Receiver module 2802 also receives near the interference of the peer communications devices operating comfortable this locality.In certain embodiments, receiver module 2802 also receives from the interference that comes from the uplink signalling that adjoins the cellular device in cellular cell.
For example the transmitter module 2804 of OFDM transmitter is coupled to transmitting antenna 2816, and base station 2800 is connected into wireless terminal transmission down link signal a little by base station 2800 as network via this day alignment.Transmitter module 2804 also transmits and will by reciprocity wireless terminal, be used for controlling the up-link transmission power controlling value signal of its transmitted power level, and these reciprocity wireless terminals have also caused interference from the angle of base station receiver module 2802 by the up link band of this base station thus for reciprocity signaling.
Memory 2810 comprises routine 2818 and data/information 2820.The routine 2818 of processor 2806---for example CPU---in execute store 2810 also controlled operation the implementation method of base station 2800 by the data/information 2820 in memory 2810.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 the various communication protocols that base station 2800 is used.Interference measurement module 2824 is measured ambient interferences during the uplink null period.Wireless terminal power control module 2826 is determined up-link transmission power controlling value according to recording ambient interferences.In various embodiments, the interference budget information consolidation that wireless terminal power control module 2826 use are being stored records ambient interferences and determines up-link power controlling value, thereby generates 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 generating, for example the first up-link transmission power controlling value 2850.In certain embodiments, control module 2830 controls transmitter module 2804 according to reproduction scheduling and transmits the up-link transmission power control signal generating.In certain embodiments, control module 2830 is controlled transmission according to interference level information.In certain embodiments, wireless terminal power control module 2826 is determined up-link transmission power controlling value according to recording ambient interferences and recording ambient interferences than the change of first pre-test.In certain embodiments, wireless terminal power control module 2826 is determined up-link transmission power controlling value according to the difference of previous two transmitted power control values.
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 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, when wireless terminal power control module 2826 records ambient interferences lower than the indicated interference budget limit of the interference budget information by storing by being included in, revise the operation of previous up-link transmission power controlling value and determine up-link transmission power controlling value, modified transmitting power controlling value increases to by reciprocity transmitted power level control than this previous up-link transmission power controlling value higher.In various embodiments, change 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 impact aligns the interference of the uplink signal that is directed to base station 2800.
Wide area network synchronization module 2828 adjoins base station synchronization for maintaining with at least one, thus maintain the uplink null period adjoin between base station synchronous.
Interference type separation module 2832 is for obtaining stemming from the estimation of amount of the uplink channel interference contribution of peer-to-peer communications.In certain embodiments, interference type separation module 2832 is inputted controlled change level wittingly in up-link transmission power controlling value, and calculating during the empty period of subsequent uplink viewed effect in interferometry usings as equity is disturbed and other interference sources---for example, there is no synchronous cellular communication apparatus---the part distinguishing that transmits uplink signal in adjoining cellular cell about base station 2800.
When data/information 2820 comprises/frequency structural information 2834, the interference budget information 2840 of storing, a plurality of interferometry information group (uplink interference measurements information 12846 ..., uplink interference measurements information N 2848) and a plurality of generated up-link transmission power controlling value (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 having at least sub-fraction not to be used to wittingly transmit to this base station the period of uplink signal in the uplink bandwidth that wherein this base station is used.In certain embodiments, the uplink null period be during by base station 2800 as being connected into wireless terminal a little---for example, cellular communication apparatus---prevent wittingly own to base station period of 2800 transmission uplink signals.During section, reciprocity wireless terminal signaling continues to use uplink band at this moment.Thus, ambient interferences is measured during section at this moment in base station 2800.If adjoining base station is concurrent by synchronously making the uplink null period with this, the noise recording during these periods may be associated with reciprocity signaling.Yet, if adjoin base station not by synchronously, and use identical up link band, the interference recording during such uplink null period just comprises from reciprocity wireless terminal with corresponding to the interference of adjoining the cellular communication apparatus of base station.
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 are shared bandwidth.In various embodiments, this wide area network relates to and increasing and/or upgrade feature corresponding to the system of having disposed and peer capabilities.In certain embodiments, originally example communication system 902 is deployed and comprises WAN and peer capabilities.Frequency band is used table 904 to indicate can be corresponding to two class embodiment of example system 902.At first kind embodiment---be in category-A embodiment, wide area network is used the movable bandwidth of sharing of Frequency Division Duplexing (FDD) (FDD) and wide area network fdd uplink band and peer-to-peer communications.At Equations of The Second Kind embodiment---be in category-B embodiment, wide area network is used the time division duplex (TDD) of same frequency band to up link and down link, 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 peer-to-peer communications signal, and the reception of the wide area network uplink signal at the peer-to-peer communications signal leading 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 object illustrating, consideration wide area network wireless terminal 908 is 906 transmission uplink signals 914 to base station.Base station 906 is received this signal and measured the signal of receiving is P c1.From the angle of reciprocity wireless terminal 2 912, signal 914 is regarded as the interference 916 from wide area network wireless terminal 908.Consider now that the first reciprocity wireless terminal 910 transmits reciprocity signal 918 to reciprocity wireless terminal 2 912.906 the angle from base station, signal 918 is regarded as the interference 920 from the first reciprocity wireless terminal 910.Base station 906 receives that the signal that this interference measurement are received is P p1.
According to various embodiment, by priority, give wide area system, and disturb in the management of place, base station.For example, choosing power control value α reaches such as (P p1/ P c1)≤the targets such as α.In some such embodiment, α be such as-10dB ,-20dB or-value 30dB.Although be in this example, about a reciprocity wireless terminal, cause receiving relevant interference with the base station of wireless terminal uplink signalling corresponding to a wide area network to describe, but will understand, can have and truly having a plurality of transmission and to disturbing the reciprocity wireless terminal make contributions, and can have and a plurality of wide area network wireless terminals from the uplink signal that recovers to transmission base station, base station that just attempting of truly having sometimes sometimes.Thus, base station is determined, and to be used for the controlling elements α that management disturbs passable, and sometimes really depend on a plurality of users.In certain embodiments, controlling elements α depends on user's number, for example, enliven wan user's number and/or enliven 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 the base station silence 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, there are a plurality of wireless terminals that work (WT A 1008, WT B 1010, WT C 1012, WT D 1014) under honeycomb operator scheme.These wireless terminals (1008,1010,1012,1014) receive from the down link signal of base station 1004 and to base station and 1004 transmit uplink signals.Yet this time point, corresponding to the wide area network up link silence period of having a mind to, does not transmit any uplink signal at this wide area network wireless terminal (1008,1010,1012,1014).
Cellular cell 1006 also comprises a plurality of wireless terminals that work under peering pattern (WT 11016, WT 2 1018, WT 3 1020, WT 4 1022).Peer-to-peer communications at this moment section during unrestricted.Equity WT 1 1016 transmits reciprocity signal 1024 to reciprocity wireless terminal 2 1018 just.The angle of the receiver from base station 1004, this reciprocity signal 1024 transmitting is regarded as reciprocity noise interferences 1026.Equity WT 3 1020 transmits reciprocity signal 1028 to reciprocity wireless terminal 4 1022 just.The angle of the receiver from base station 1004, this reciprocity signal 1028 transmitting is regarded as reciprocity noise interferences 1030.
Figure 16 is the illustration 1102 of some features of the various embodiment of diagram, and is the continuity of the example of Figure 15.Base station 1004 is disturbed and is determined power control value α according to measured equity.Base station is subsequently via the signal of being used by these wireless terminals 1104 being broadcasted to this controlling value α.In this exemplary embodiment, base station is that controlling value α broadcasts single value; Yet this value can and sometimes really be received the different wireless communication equipment of broadcast singal 1104 and does different use.In this example, this group wireless terminal (WT A 1008, WT B 1010, WT C 1012, WT D 1014) operating under honeycomb mode is used the first power control function f 1(α) 1106 determine transmitted power level control parameter; And this group wireless terminal (WT 1 1016, WT 2 1018, WT 3 1020, WT 4 1022) operating under ad-hoc mode is used the second power control function f 2(α) 1108 determine 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 base station, and determines according to this value of receiving and corresponding service class the power control value that it will use oneself.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 from different Traffic type---for example, the data of the 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 user comprises, for example, high-priority users such as police, fire, emergency services, subscribes to the medium priority user of high service class plan and the low priority user of having subscribed to low service class plan.Thus in certain embodiments, according to priority-level, revise the power control value recovering.
In exemplary table 1200, first row 1202 indication is exemplary receives controlling value α, the exemplary corresponding with service rank 1 controlling value α of secondary series 1204 indication 1, the exemplary corresponding with service rank 2 controlling value α of the 3rd row 1206 indication 2, and the exemplary corresponding with service rank 3 controlling value α of the 4th row 1208 indication 3.If the wireless terminal of the first row 1210 indication use look-up tables 1200 receives that broadcasting power controlling value and its corresponding service class from the indication-10dB of base station is (service class 1, service class 2, service class 3), it uses respectively (10dB ,-15dB ,-20dB) to its power control value.If the wireless terminal of the second row 1212 indication use look-up tables 1200 receives that broadcasting power controlling value and its corresponding service class from the indication-20dB of base station is (service class 1, service class 2, service class 3), it uses respectively (20dB ,-25dB ,-30dB) to its power control value.If the wireless terminal of the third line 1214 indication use look-up tables 1200 receives that broadcasting power controlling value and its corresponding service class from the indication-30dB of base station is (service class 1, service class 2, service class 3), it uses respectively (30dB ,-35dB ,-40dB) to its power control value.
The flow chart 1300 of the illustrative methods that Figure 18 operates base station according to various embodiment---for example its uplink bandwidth is also used to the base station of reciprocity signaling---.This base station is for example as wherein operating in and adjoin the base station being operated by a part for synchronous cellular communication system between base station.Synchronously be convenient to realize the general uplink null period adjoining between base station, wherein can control wide area network wireless terminal cellular cell uplink signalling to stop at large.These sky periods are for the measurement of ambient interferences.In such embodiments, ambient interferences W can be similar to by W=thermal noise+reciprocity noise.Base station desired control disturbs, and determines and broadcast the power control factor α being received by near the wireless terminal it.
Operate in step 1302 and start, in this this base station, powered on and initialization.In certain embodiments, this initialization comprises the power control factor α use default value by these wireless terminal broadcast.Operation advances to step 1304 from starting step 1302.In step 1304, base station is at empty interval---for example, wherein control the up link empty interval that WAN wireless terminal is prevented own signaling---during measure ambient interferences W.
Operation advances to step 1306 from step 1304.In step 1306, power control factor α is determined according to measured ambient interferences in base station.In various embodiments, the function using makes along with W increases, and α increases at least some non-NULL scopes of W.In certain embodiments, the comparison of definite interference budget information that comprises and storing of step 1306.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, at this, carries out the another one-shot measurement to ambient interferences.
In certain embodiments, in generation, be broadcasted corresponding to a plurality of empty intervals, carry out and use the repeatedly measurement to ambient interferences during definite power control factor.Thus in certain embodiments, base station is to broadcast in step 1308 carries out one group of background corresponding to one group of empty interval before determined power control factor and measures, for example step 1304 repeatedly repeatedly.
The flow chart 1400 of the illustrative methods that Figure 19 operates base station according to various embodiment---for example its uplink bandwidth is also used to the base station of reciprocity signaling---.This base station is for example as wherein operating in and adjoin the base station not operated by a part for synchronous cellular communication system between base station.In the uplink timing structure of using in this base station, the uplink null period is used for measuring ambient interferences by base station.Yet, because the operation in adjacent cells is not by synchronously, therefore from the interference level of adjacent cells, pass in time and may change, thereby if make to extract ambient interferences to aliquot with adjoin the situation that the situation that synchronize in base station and the uplink null that is controlled such that to have a mind to occurs concomitantly should occur and compare just more difficult.Base station desired control disturbs, and determines and broadcast the power control factor α being received by near the wireless terminal it.According to the feature of the present embodiment, base station changes the broadcasting power controlling elements of its broadcast wittingly as controlled input, thereby measures response.
Operation starts from step 1402---and in this base station, powered on and initialization, and advanced to step 1404.In step 1404, base station broadcast power control factor α 1.At this point, α 1it is the default value obtaining from initialization.In step 1406, base station is at empty interval subsequently---for example, wherein use the Wireless Telecom Equipment of this base station to be constrained to wittingly the up link WAN empty interval that does not transmit uplink signal---during measure ambient interferences W 1.Operation advances to step 1408 from step 1406.
In step 1408, base station Modulating Power controlling elements are determined the second power control factor α 2.For 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 base station 2.Operation advances to step 1412 from step 1410.
In step 1412, ambient interferences W is measured in base station during empty interval 2.Operation advances to step 1414 from step 1412.In step 1414, power control factor α is determined according to the change of the power control factor that records the change of ambient interferences and transmit in base station 3.For example, α 3according to Δ W and Δ α, determine, wherein Δ W=W 2-W 1.In an exemplary embodiment, α 3α 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 3.Action 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 transverse axis 1504.Representing at the noise W that receives noise that attempts recovering the place, base station of uplink signal and comprising that reciprocity noise and other cellular cells disturb.Variable α is power control factor.Curve 1506 is that W corresponding to other cellular cell interference levels 1508 is with respect to α characteristic curve.During the uplink null time interval of having a mind to corresponding to the first base station, the first base station is controlled wittingly the wireless terminal prevention being connected into a little used as network and is carried out uplink signalling.During the uplink null time interval of having a mind at this, allow the equity activity in this cellular cell to continue.Thus, this equity activity is used as noise by the first base station receiver and is treated and make contributions for measured noise W.
Consider now to have the base station of adjoining just with respect to the first base station asynchronous operation.Because this adjoins base station and first base station asynchronous, the uplink null time interval of having a mind to that therefore adjoins base station not necessarily with the empty time interval crossover of having a mind to of the first base station.Thus, this uplink signalling that adjoins base station is also made contributions to the noise W that records being measured during the uplink null period of having a mind to of the first base station by the first base station.
W is other cellular cell disturbed ones 508 corresponding to preset level with respect to the characteristic curve 1506 of α, and the latter represents the minimum levels of interference.If approached on curve 1506 on saturated point, operate, 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 extraly reciprocity transmitted power level and can significantly not improve the reception to the uplink signal from cellular radio terminals.Yet, if had on curve 1506 on the point of high slope value, operating, slightly increasing of α will decline and cause remarkable change the level of noise W.Under such condition, sometimes reduce α such as will be useful to improve to the recovery of the uplink signal of the wireless terminal from based on cellular cell.For example, slightly suppress the remarkable improvement that reciprocity transmitted power level can cause uplink signalling recovery and/or throughput under such condition.
Generally speaking, in various embodiments, the communications reception of the wide area based on good (for example honeycomb) is compared and is given priority with reciprocity signaling.Yet, in the situation that the up link quality of reception based on cellular cell needing of closing of given specified level expects that peer-to-peer communications throughput is maximized.Can observe W changes with respect to α characteristic curve the function disturbing as these other cellular cells.These other cellular cells interference can and sometimes really be independent of the first cellular cell operation and change.For example, due to all conditions, adjoin the wireless terminal user based on honeycomb in cellular cell number, adjoin cellular cell uplink traffic load etc., these other cellular cells that the first base station experiences are disturbed and can be changed to different level.Plotting curve 1600 diagrams of Figure 21 are compared other different cellular cell interference levels 1608 from other cellular cell interference levels 1508 of Figure 20.In addition, Figure 21 diagram is compared different characteristic curve 1606 from characteristic curve 1506.
The illustrative methods of the selection of the power control factor α using is in various embodiments adjusted in Figure 22 diagram in response to noise testing.Figure 22 is the plotting curve 1700 with respect to the α on transverse axis 1504 corresponding to the noise W on the longitudinal axis 1502 of characteristic curve 1506.In when operation, the first base station may not recognize that the first base station is corresponding to operation on the characteristic curve 1506 of other cellular cell interference levels 1508 of Figure 20, 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 by α in the 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 the first base station.During the uplink null period of having a mind to of the first base station, the noise level W that the first base station measurement is received is W 11706.Subsequently, the first base station is wittingly by α 1value change amount Δ α 1708 to obtain α 21710.This is representing for wittingly the noise level of receiving on 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 the first base station.During the uplink null period of having a mind to of the first base station, the noise level W that the first base station measurement is received is W 21714.The change of the first base station measurement W, i.e. Δ W1716.The 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, the 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 less in Δ W indicated in point 1718, the first base station is by the new value α of α 3be arranged to α 3=α 1-Δ α; And if as larger in Δ W indicated in point 1720, the first base station is by the new value α of α 3be arranged to α 3=α 2+ Δ α, its medium and small and large definite be with respect to the predetermined interference budget information of storing.This power control factor of the first base station broadcast α subsequently 3for the reciprocity wireless terminal in this cellular cell, be used for controlling its reciprocity transmitted power level.
Figure 23 is illustrated in wide area network to utilize time division duplex (TDD) for example to carry out the illustration 1800 that the example bandwidth in some embodiment of cellular communication is used.For for example, 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.For example, for wide area---for example, cellular communication---TDD band along timeline 1802 as respectively by indicated in frame (1804,1806,1808,1810) for (up link, down link, up link, down link).Except the typical activity based on honeycomb, peer broadcast signal is transmitted in base station during the interval that typically is the reservation of wide area uplink signalling, for example beacon signal and/or other broadcast singals.This is represented by the signal (1812,1814) of the time interval corresponding to frame (1804,1808) respectively.In addition, be designated as for wide area network---for example, cellular uplink---time interval be also 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 wide area network to utilize Frequency Division Duplexing (FDD) (FDD) for example to carry out the illustration 1900 that the example bandwidth in some embodiment of cellular communication is used.For for example, corresponding to the wide area network of base station, up link and down link are used different frequency bands.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-contiguous part.In certain embodiments, in one of up link and down link band, have at least a part to be included between two different pieces of the another one among this up link and down link band.
In FDD wide area up link band, except the typical uplink signalling based on honeycomb, this frequency band is also for other activities relevant with reciprocity signaling.In Figure 24, FDD wide area up link band 1904 is also used for transmitting peer broadcast signal 1908 by base station, and for example beacon signal is transmitted in this base station and/or other broadcast singals are used for reciprocity wireless terminal.Equity wireless terminal also by as by being positioned on frequency axis 1902 corresponding to the indicated same frequency band of the frame 1910 of FDD wide area up link band 1904 for reciprocity signaling.
Figure 25 is according to the illustration of 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 is peer-to-peer communications use time division duplex for wan communication.In some such embodiment, for the frequency band of peer-to-peer communications with identical for the frequency band of up link WAN communication.Wireless Telecom Equipment 2000 comprises transceiver module 2002, user I/O equipment 2004, processor 2006 and the memory 2008 being coupled via bus 2010, and in bus 2010, various unit can swap data and information.
User I/O equipment 2004 comprises for example microphone, keyboard, keypad, camera, switch, mouse, loud speaker, display.User I/O equipment 2004 allows user input data/information, the access output data/information of Wireless Telecom Equipment 2000 and controls at least some functions of Wireless Telecom Equipment 2000, for example, this communication equipment is arranged to WAN operator scheme, this communication equipment is arranged to peering pattern, this communication equipment is arranged to operator scheme allowing WAN communication and peer-to-peer communications etc.User chooses in some embodiment of peer-to-peer communications therein, and this communication equipment automatically switches into WAN operator scheme to can monitor the WAN paging signal of just passing on reproduction basis.User is arranged to this communication equipment to support in some embodiment of operator scheme of WAN signaling and reciprocity signaling therein, and this communication equipment is considered and changed at least one among considering of hand and automatically between all patterns, switch according to receiving priority.
Memory 2008 comprises routine 2050 and data/information 2052.For example the routine in processor 2006 execute stores 2008 of CPU 2050 is also controlled operation the implementation method of Wireless Telecom Equipment 2000 by the data/information 2052 in memory 2008.
Transceiver module 2002 comprises duplexer module 2024, transmitter chain 2001, the first receiver chain 2003, the second receiver chain 2005, switch 2032, analog to digital converter (ADC) 2034 and digital signal processor (DSP) 2016.DSP 2016 comprises digitally transmitted signals module 2042, mode control module 2044 and digital received signaling module 2046.Transmitter chain 2001 has a RF frequency for generating---for example, and by f uLthe frequency representing---signal transmission.The first receiver chain 2003 is for the treatment of having the 2nd RF frequency---for example, and by f dLthe frequency representing---receive signal.The second receiver chain 2005 is for the treatment of having a RF frequency---for example, and by f uL2026 frequencies that represent---receive signal.
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 digit signals, and DAC 2018 converts this digital signal to analog signal.This analog signal is imported into frequency mixer 2020, and it also has for 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 is coupled to antenna 2012 by what be transmitted through amplifying signal by what receive, and communication equipment 2000 transmits signal via this antenna.The signal transmitting when Wireless Telecom Equipment 2000 be to comprise uplink signal while working under WAN operator scheme, and when this wireless device be to comprise reciprocity signal while working under peering pattern.
The first receiver chain 2003 comprises the first band pass filter (BPF 12028) and frequency mixer 2030; The second receiver chain 2005 comprises the second band pass filter (BPF 22038) and frequency mixer 2040.At operate wireless communication equipment 2000, when receiving WAN signal, mode control module 2044 control switchs 2032 are to be coupled to ADC 2034 by the output of the first receiver chain 2030.Alternatively, at this Wireless Telecom Equipment of operation, when receiving reciprocity signal, mode control module 2044 control switchs 2032 are to be coupled to ADC 2034 by the output of the second receiver chain 2005.
Suppose mode control module 2044 control switch 2032 the first receiver chain 2003 is coupled to ADC 2034.Down link signal from base station is received via antenna 2012 and is coupled to BPF via duplexer module 2024 12028.The output of band pass filter 12028 is input 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---via switch 2032, be fed to ADC transducer 2034.ADC transducer 2034 is processed 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 by the second receiver chain 2003.The reciprocity signal of the Wireless Telecom Equipment operating under next comfortable ad-hoc mode is received and is coupled to BPF via antenna 2014 22038.The output of band pass filter 22038 is input to frequency mixer 2040.Another input of frequency mixer 2040 is uplink frequency (f uL) 2026, be for example also 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---via switch 2032, be fed to ADC transducer 2034.ADC transducer 2034 is processed this input signal and is expressed to obtain digital signal, and it is fed to digital received signaling module 2046.
Mode control module 2044 according to mode control module 2044 which in preset time choice for use the first operator scheme and the second operator scheme between the use of the first and second receiver chains (2003,2005), switch.In various embodiments, the first operator scheme is frequency division duplex operation pattern, wide area network FDD operator scheme for example, and the second operator scheme is peer-to-peer communications operator scheme, for example time division duplex (TDD) peering pattern.
In certain embodiments, the wide area network receiving scheduling that mode control module 2044 realizes according to communication equipment 2000 is automatically controlled switching.In some such embodiment, when schedule information indication multi-mode communication device 2000 can receive 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 the first operator scheme---for example, and WAN operator scheme---lower work.In certain embodiments, mode control module 2044 causes equipment 2000 to carry out switch mode in response to user's input selection of receiving.In certain embodiments, mode control module 2044 causes equipment 2000 in response to receiving that precedence information carrys out switch mode.In various embodiments, mode control module 2044 causes equipment 2000 to carry out switch mode in response to changing hand indicator signal.In certain embodiments, mode control module 2044 causes equipment 2000 to carry out switch mode in response to schedule information, and for example, peer-to-peer communications is limited to reduce interference during the pre-special time in respect of high WAN signaling.In certain embodiments, mode control module 2044 causes equipment 2000 to carry out switch mode in response to locating information, for example, some location may be arranged in outside cellular coverage or other location may be too near to base station and make to consider to disapprove uplink band because of the interference at base station receiver place and have reciprocity signaling or service supplier in particular locality, not to use the mandate of one of WAN signaling or reciprocity signaling.In certain embodiments, mode control module 2044 causes equipment 2000 to change and carry out switch mode in response to the channel quality on the detected link just maintaining.
Routine 2050 comprises Communications routines 2054 and wireless terminal control routine 2056.Communications routines 2054 realizes the various communication protocols that Wireless Telecom Equipment 2000 is used.Wireless terminal control routine 2056 comprises I/O module 2058, frequency band module 2060, paging module 2062, wide area network control module 2064, reciprocity control module 2066, receives priority block 2068 and change fingerprint piece 2070.Data/information 2052 comprises the information 2082 that schedule information 2072, user model are chosen information 2074, wide area network signal 2076, reciprocity signal 2078, changed hand indicator signal 2080 and sign present mode.
I/O module 2058 is controlled the operation of user I/O equipment 2004 and is received user model and chooses information 2074, for example,, in order to use the user of WAN signaling to choose, choose in order to enable the user of reciprocity signaling, 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 this equipment is placed in to it.
The frequency input signal f being used by transmitter chain 2001 and the second receiver chain 2005 is selected and arranged to frequency band module 2060 uL2026, and the f being used by the first receiver chain 2003 is set dL2036.
Paging module 2062 is controlled the operation relevant with paging.In certain embodiments, when enabling peering and Wireless Telecom Equipment 2000 and just mainly operate with reciprocity signaling, communication equipment 2000 is switched to reception WAN paging signal by reproduction scheduling during between WAN paging zone.
WAN control module 2064 control operation under WAN pattern time, for example, transmit module 2042 of control figure generates and will be communicated to the uplink signal that is connected into base station a little as network, and control figure receives the down link signal that signaling module 2046 processing are received from base station.
The control operation under ad-hoc mode time of equity control module 2066, for example the control figure module that transmits generates and will be transmitted to the reciprocity signal of other wireless terminals that operate under ad-hoc mode, and control figure receives signaling module 2046 process the reciprocity signal that the wireless terminal that operates from other is received under peering pattern.
Receive priority block 2068 and determine in preset time it is that WAN network communication will have priority or reciprocity signaling will have priority.Determining of module 2068 used by mode control module 2044, and the latter is controlled between alternative receiver chain (2003,2005) switches to realize respectively WAN communication or peer-to-peer communications.Thus, mode control module 2044 is switched between WAN pattern and ad-hoc mode according to receiving precedence information.For example, in certain embodiments, conventionally give the priority of WAN signaling higher than reciprocity signaling; Yet, for the user of at least some types and/or the signaling of some types, for example, corresponding to user and/or the signal of emergency service, give the priority of reciprocity signaling higher than wide area network signaling.As another example, based on assessing, the competition stand-by period considers and/or service class gives priority.
Changing fingerprint piece 2070 determines and will use reciprocity signaling or WAN signaling for a part of changing hand.Change fingerprint piece 2070 generate pattern control modules 2044 to its response change hand indicator signal 2080, thereby cause pattern to be switched.Some change 2080 indications of hand control signal and change hand to wan communication link from peer-to-peer communication link, to cause the switching from peering pattern to wide area network operator scheme.Other change 2080 indications of hand control signal and change hand to peer-to-peer communication link from wan communication link, to cause the switching from wide area network operator scheme to peering pattern.
Schedule information 2072 comprises WAN schedule information 2084 and reciprocity schedule information 2086.The information of base/frequency structure when WAN schedule information 2084 comprises the information of definition uplink timing/frequency structure and defines down link.WAN schedule information 2084 comprises the information between sign WAN paging zone.In certain embodiments, peering is suspended the WAN paging access with support of wireless communication equipment during between at least some WAN paging zones.The information in different equity intervals in based structures when reciprocity schedule information 2086 comprises sign reproduction equity, for example, peer device is found between interval, reciprocity paging zone and traffic interval.
User model is chosen information 2074 and is comprised the modality preferences of ordering or asking from the identifying user of I/O module 2058---for example, wide net mode, ad-hoc mode or allow communication equipment 2000 for example according to signal quality, priority, load and/or change the pattern that hand information automatically replaces between WAN pattern and ad-hoc mode---information.
WAN signal comprises the down link signal of receiving and the uplink signal that will transmit.The down link signal of receiving from base station comprises, for example beacon signal, pilot frequency channel signal, synchronizing signal, power control signal, time base control signal, paging signal, appointment signal and traffic channel signal.Uplink signal comprises, for example access signal, 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.
Equity signal comprises that equity transmits signal and equity receives signal.Exemplary equity transmits signal and comprises, for example, identify user's beacon signal of communication equipment 2000, reciprocity paging signal, reciprocity traffic request signal and reciprocity telephone traffic signal.Exemplary equity receives signal and 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 by mode control module 2044, used.Present mode information 2082 is indicated by mode control module 2044 corresponding to the set present mode of mode control signal 2048.
In certain embodiments, no matter just using the first receiver chain 2003 or the second receiver chain 2005 is all used identical antenna.In certain embodiments, by extra switch, one of the first receiver chain 2003 and second receiver chain 2005 are 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 is used to antenna separately.In certain embodiments, by extra switch, one of the first receiver chain 2003 and second receiver chain 2005 are coupled to reception antenna, the operational coordination of the operation of this extra switch and switch 2032.
In certain embodiments, the first and second band pass filters are different hardware devices.In certain embodiments, the 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 inputted 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 in DSP 2016---for example, mode control module 2044---be included in routine 2050.In certain embodiments, the various elements that are included in memory 2008 are included in transceiver module 2002.In various embodiments, replace transceiver module 2002 to realize independent transmitting set module and individual wireless receiver module.
Figure 26 is that diagram is according to the illustration 2100 of the exemplary band of various embodiment and shared frequency band use between wan communication use and peer-to-peer communications use.Frequency band as wan communication band is also assigned with as reciprocity TDD receiver frequency band with as reciprocity TDD transmitter band.As example, frequency band represented in Figure 26 can be used by the multi-mode radio communications device of Figure 25, for example, in different location and/or in the different time, has different WAN up links and downlink communication frequency band to available and/or be used.
Transverse axis 2101 represents frequency.Corresponding to frequency f uL12103, there are wide area network up link Frequency Division Duplexing (FDD) band 2102, reciprocity time division duplex conveyer belt 2106 and reciprocity time division duplex receiving belt 2108.It is 2104 paired that wide area network up link Frequency Division Duplexing (FDD) band 2102 and wide area network down link frequency division duplex are with.Corresponding to frequency f dL12105, there is wide area network down link frequency division duplex to be with 2104.
Similarly, corresponding to frequency f uL22113, there are 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.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, there are 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.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.This communication equipment determine to use these 3 groups of WAN frequencies in Figure 26 to one of.For example, consider to have chosen second pair.For WAN and reciprocity the second receiver chain 2005 that transmits the transmitter chain 2001 of signaling and receive for reciprocity signal, be tuned to f uL2.For receiving the first receiver chain 2003 of WAN signal, be 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, at this this multi-mode radio communications device, is powered on and initialization.This multi-mode radio communications device is, for example the equipment 2000 of Figure 25.Operation advances to step 2204 from starting step 2202.In step 2204, this wireless device by its transmitter chain be tuned to the first frequency band, this transmitter chain will be for transmitting uplink signal and reciprocity signal.In step 2206, this wireless device by its first receiver chain be tuned to the second frequency band, this second frequency band is different from above-mentioned the first frequency band, this first receiver chain will be for receiving WAN down link signal.In step 2208, this wireless device by its second receiver chain be tuned to the first frequency band, this second receiver chain will be for receiving reciprocity signal.Operation advances to step 2210 from step 2208.
In step 2210, this wireless device receives the input that indication operator selects ad-hoc mode to enable.Subsequently in step 2212, this Wireless Telecom Equipment is enabled ad-hoc mode as by the primary operations pattern of using.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 predetermined scheduling.For example, consider the multi-mode radio communications device 2000 of Figure 25, when this scheduling indication is just occurring between paging zone, mode control module 2044 control switchs 2032 are switched to ADC 2034 by the first receiver chain 2003; Yet when not occurring between this scheduling indication paging zone, mode control module 2044 control switchs 2032 are switched to ADC 2034 by the 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 based structures along (2254,2258) between the exemplary WAN paging zone of time shaft 2252 and exemplary reciprocity interval (2256,2260).
Figure 28 operates the flow chart 2500 of 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 at this this multi-mode communication device, powered on and initialization, and advanced to step 2504.In step 2504, this wireless terminal is replaced centering from many groups and is selected the first fdd uplink/down link pair, a pair of FDD frequency band being for example associated with tuner frequencies setting.3 groups of exemplary FDD uplink/downlinks pair of illustration 2100 diagram of Figure 26.
Operation advances to step 2506 from step 2504, at tuning the first transmitter chain of this this communication equipment, with generation, there is the signal transmission of a RF frequency, and in step 2508, tuning the first receiver chain of this communication equipment is to process the signal of receiving with the 2nd RF frequency.Operation advances to step 2510 from step 2508, and wherein tuning the second receiver chain of this communication equipment is to process the signal of receiving with an above-mentioned RF frequency.In certain embodiments, one or the more persons in step 2506,2508 and 2510 is executed in parallel.In various embodiments, a RF frequency is corresponding to the right FDD up link of FDD of selecting in step 2504, and the 2nd RF frequency is corresponding to the right FDD down link of FDD of selecting in step 2504.
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, this communication equipment depends on that the user of step 2512 chooses whether enables ad-hoc mode and advances along different paths.
If enabled ad-hoc mode, operate from step 2514 and advance to step 2516.If do not enable ad-hoc mode, operate from step 2514 and advance to step 2518, at this this communication equipment, use above-mentioned transmitter chain and the first receiver chain in the second operator scheme---and for example, wide area network FDD operator scheme---lower work.
Turn back to step 2516, in step 2516, this communication equipment according to mode control module which in preset time choice for use the first operator scheme and the second operator scheme between the use of the first and second receiver chains, switch.This switching is not have the automatic or semi-automatic mode that user gets involved to carry out in various embodiments.Step 2516 comprises sub-step 2520,2524,2526,2528,2530 and 2532.In sub-step 2520, this communication equipment identifies the time interval in the WAN receiving scheduling that this communication equipment realizes, and in sub-step 2524, this communication equipment determines whether the time interval identifying in WAN receiving scheduling indicates between WAN paging zone subsequently.If between indication paging zone, operate from sub-step 2524 and advance to sub-step 2526; Otherwise operation advances to sub-step 2528 from sub-step 2524.
Turn back to sub-step 2526, in sub-step 2526, the mode control module of this communication equipment is selected first mode, FDD WAN operator scheme for example, and in sub-step 2530, this communication equipment switches to and uses the first receiver chain.Turn back to sub-step 2528, in sub-step 2528, the mode control module of this communication equipment is selected the second pattern, peer-to-peer communications operator scheme for example, and in sub-step 2532, this communication equipment switches to and uses the second receiver chain.
If operation has been advanced by sub-step 2530, action row enters step 2534; And if operation has been advanced by sub-step 2532, action row enters step 2536.In step 2534, this communication equipment uses the first receiver chain in the first operator scheme---and for example, FDD WAN pattern---lower work is to receive WAN paging signal.In step 2536, this communication equipment uses the second receiver chain and transmitter chain in the second operator scheme---for example, and peering pattern---lower work.In various embodiments, when user enables peering, this communication equipment mastery ground is used the second receiver chain to work under the second pattern; Yet, when WAN between at least some paging zones of based structures during, this communication equipment uses the first receiver chain to work under first mode.Operation advances to step 2516 from one of step 2534 and step 2536, to identify and to consider to belong to pattern and the switching of another time interval.
Figure 29 operates the flow chart 2600 of 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 at this this multi-mode communication device, powered on and initialization, and advanced to step 2604.In step 2604, this wireless terminal is replaced centering from many groups and is selected the first fdd uplink/down link pair, a pair of FDD frequency band being for example associated with tuner frequencies setting.3 groups of exemplary FDD uplink/downlinks pair of illustration 2100 diagram of Figure 26.
Operation advances to step 2606 from step 2604, at tuning the first transmitter chain of this this communication equipment, with generation, there is the signal transmission of a RF frequency, and in step 2608, tuning the first receiver chain of this communication equipment is to process the signal of receiving with the 2nd RF frequency.Operation advances to step 2610 from step 2608, and wherein tuning the second receiver chain of this communication equipment is to process the signal of receiving with an above-mentioned RF frequency.In certain embodiments, one or the more persons in step 2606,2608 and 2610 is executed in parallel.In various embodiments, a RF frequency is corresponding to the right FDD up link of FDD of selecting in step 2604, and the 2nd RF frequency is corresponding to the right FDD down link of FDD of selecting in step 2604.
Operation advances to step 2612 from step 2610.In step 2612, this communication equipment according to mode control module preset time point selection use for example, for example, in first mode (wide area network fdd mode) and the second pattern (, peering pattern) which to switch between the use of the first and second receiver chains.For example, this multi-mode communication system is no matter this communication equipment is all to use this transmitter under wide area network fdd mode or ad-hoc mode.Yet for reception, this multi-mode communication device is used the first receiver chain under WANFDD pattern time, and use the second receiver chain under peering pattern time.Thus, WAN communication is FDD, and peer-to-peer communications is TDD, and wherein peer-to-peer communications is shared WANFDD up link band.
Step 2612 comprises sub-step 2614,2616 and 2618.In sub-step 2614, this communication equipment is determined corresponding to the reception priority that receives wide area network signal, and in sub-step 2616, this communication equipment is determined corresponding to the reception priority that receives reciprocity signal.Subsequently, in sub-step 2618, this communication equipment is selected between the first and second patterns according to relatively receiving priority.
Operation advances to the input of step 2612 from the output of step 2612.Along with passage of time, receive priority can, and sometimes really such as amount, the stand-by period of the type of the specific user because of this communication equipment, service class information, the data that will pass on, the data that will pass on, consider etc. and to change.
Figure 30 operates the flow chart 2700 of 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 at this this multi-mode communication device, powered on and initialization, and advanced to step 2704.In step 2704, this wireless terminal is replaced centering from many groups and is selected the first fdd uplink/down link pair, a pair of FDD frequency band being for example associated with tuner frequencies setting.3 groups of exemplary FDD uplink/downlinks pair of illustration 2100 diagram of Figure 26.
Operation advances to step 2706 from step 2704, at tuning the first transmitter chain of this this communication equipment, with generation, there is the signal transmission of a RF frequency, and in step 2708, tuning the first receiver chain of this communication equipment is to process the signal of receiving with the 2nd RF frequency.Operation advances to step 2710 from step 2708, and wherein tuning the second receiver chain of this communication equipment is to process the signal of receiving with an above-mentioned RF frequency.In certain embodiments, one or the more persons in step 2706,2708 and 2710 is executed in parallel.In various embodiments, a RF frequency is corresponding to the right FDD up link of FDD of selecting in step 2704, and the 2nd RF frequency is corresponding to the right FDD down link of FDD of selecting in step 2704.
Operation advances to step 2712 from step 2710.In step 2712, this communication device monitors is changed hand indicator signal.For what detect, change hand indicator signal, operation advances to step 2714 from step 2712.
In step 2714, this communication equipment determines whether this changes hand is from peer-to-peer communication link to WAN communication link.If determine that this changes hand is from peer-to-peer communication link to WAN communication link, operates from step 2714 and advances to step 2716; Otherwise operation advances to step 2718 from step 2714.
In step 2718, this communication equipment determines whether this changes hand is from WAN communication link to peer-to-peer communication link.If determine that this changes hand is from WAN communication link to peer-to-peer communication link, operates from step 2718 and advances to step 2720; Otherwise operation just advances to step 2712 from step 2718, 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 different base station sector and occur, and do not carry out the switching between receiver.
Turn back to step 2716, in step 2716, this communication equipment for example, is switched to the first operator scheme (for example, WAN operator scheme) from the second operator scheme (, peering pattern).Turn back to step 2720, in step 2720, this communication equipment for example, is switched to the second operator scheme (for example, peering pattern) from the first operator scheme (, WAN operator scheme).Operation advances to step 2722 from one of step 2716 and 2720.
In step 2722, this communication equipment for example, for example, switches between the use of the first and second receiver chains according to which among above-mentioned the first operator scheme of choice for use preset time (wide area network fdd mode) and above-mentioned the second operator scheme (, peering pattern).For example, if operation is advanced along step 2716, switch and so occur from the second receiver chain, to transfer to the first receiver chain so that receiver chain is used.Continue this example, if operation is advanced along step 2720, switch and so occur from the first receiver chain, to transfer to the second receiver chain so that receiver chain is used.Operation advances to step 2712 to monitor the additional hand indicator signal that changes from step 2722.
In various embodiments, for example, in WAN FDD operator scheme (, honeycomb operator scheme) with for example, in peering pattern (, TDD peering pattern), use identical transmitter in the two.Yet, compare with under peering pattern time, utilize different receiver chains under WAN operator scheme time.In various embodiments, this TDD peering pattern to transmission and receive to use with in WAN for the identical frequency band of uplink signalling.
In certain embodiments, the air link resources that at least use the communication system based on honeycomb of one of TDD and FDD to be applicable to reciprocity signaling, wherein in this equity signaling, at least some are shared also for up link wide area network---for example the uplink signalling based on cellular cell---.In certain embodiments, the air link resources of reservation that the typical communication system based on honeycomb of one of TDD and FDD of at least using is modified to applicable reciprocity signaling, and wherein in this equity signaling, at least some are shared as up link wide area network---for example the uplink signalling based on cellular cell---.In certain embodiments, the signaling of many supports based on 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 is supported communication equipment with support peer-to-peer communications but is not supported at least some the mixing in the communication equipment of communicating by letter based on cellular cell.In certain embodiments, communication system is supported communication equipment and support peer-to-peer communications and at least some mixing in both communication equipment of communicating by letter based on cellular cell.
Although be to be mainly 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 reciprocity signaling, for example, and the signal of the signal of some OFDM types and some CDMA types.
In various embodiments, one or more module of the step that node described herein is that use is carried out corresponding to one or more of methods---for example, scan uplink bandwidth, assess base station signal, determine transmitted power level control parameter, control reciprocity transmitting power, measurements interference, determine transmitting power controlling value, transmit transmitting power control parameter etc.---realizes.In certain embodiments, various features can realize by module.Such module can realize with the combination of software, hardware or software and hardware.Above-described many methods or method step can be used realizing such as machine-executable instructions such as softwares in the machine readable media that is included in such as memory devices---such as RAM, floppy disk etc.---, with control example as with or with the all-purpose computer of other softwares, for example in one or more node, do not realize above-described all or part method.Therefore, various embodiment are also especially for comprising for making to carry out such as the machine of processor and associated hardware etc. the machine readable media of machine-executable instruction of one or more steps of above-described method.
In view of description above, numerous other distortion of above-mentioned method and apparatus will be obvious to those skilled in the art.These distortion drop in scope being considered to.The method and apparatus of various embodiment can and in various embodiments really with can be used for providing and use together with the communication technology of access node and wireless communication link between mobile node of CDMA, OFDM (OFDM) and/or various other types.In certain embodiments, these access nodes are implemented as the base station of to set up with mobile node communication link with OFDM and/or CDMA.In various embodiments, mobile node is by for being embodied as notebook, personal digital assistant (PDA) or other comprise for realizing the receiver/transmitter circuitry of method and the portable set of logic and/or routine of various embodiment.

Claims (53)

1. a method that operates the Wireless Telecom Equipment of supporting peer-to-peer communications, described method comprises:
Reception is from the first signal of base station;
The described first signal of receiving is carried out to power measurement; And
According to the reciprocity transmitted power level of the power measurement of the described first signal of receiving being controlled at least some reciprocity signal transmission.
2. the method for claim 1, is characterized in that, further comprises:
Receiving the secondary signal from described base station with the time that receives the asynchronism(-nization) of described first signal;
To described second, receive signal execution measurement; And
According to described second, receive recording Wireless Telecom Equipment described in power determination and should preventing the reciprocity signal of transmitting of signal.
3. method as claimed in claim 2, is characterized in that, also comprises:
After should preventing the reciprocity signal of transmitting, prevents by definite described communication equipment the reciprocity signal of transmitting, until be allowed to launch reciprocity signal from measurement from Wireless Telecom Equipment described in the power determination of another signal of described base station.
4. the method for claim 1, is characterized in that, described first signal is to receive as in the frequency band in order to the uplink band to described base station transmit signals; And wherein said reciprocity signal is launched in described uplink band.
5. the method for claim 1, is characterized in that, described first signal is to receive in the frequency band of the downlink band of using as described base station; And wherein said reciprocity signal is launched in another frequency band.
6. the method for claim 1, is characterized in that, control reciprocity transmitting power and comprise use the first function, and
Wherein said the first function for first receive signal power level compared with for higher than described first receive second of signal power level receive signal power level by reciprocity transmission power limit on lower level.
7. the method for claim 1, is characterized in that, control reciprocity transmitting power comprise in response to higher recording receive signal power level by reciprocity transmission power limit on lower level.
8. method as claimed in claim 6, is characterized in that, described the first function is determined the maximum equity transmitted power level of permitting, and described method further comprises:
The reciprocity signal receiving according to the maximum transmit power level of described allowance with from the second peer communications devices is determined actual reciprocity signal transmission power level.
9. method as claimed in claim 8, is characterized in that, determined actual emission power level is less than the reciprocity transmitted power level of described maximum.
10. method as claimed in claim 6, is characterized in that, also comprises:
The transmitting power of the signal to the transmitting of described base station is controlled on the transmitted power level that described reciprocity transmitted power level that described at least some the reciprocity signals transmission of comparison are used is higher.
11. methods as claimed in claim 10, it is characterized in that, the transmitting power of controlling the signal of launching to described base station comprises with the second function that is different from described the first function to be determined to the transmitted power level of the described signal of described base station transmitting to receive power level based on recording of described first signal.
12. methods as claimed in claim 10, is characterized in that, described reciprocity transmitted power level is at least than the low 10dB of transmitted power level of the described signal to the transmitting of described base station.
13. the method for claim 1, is characterized in that, control reciprocity transmitting power and comprise according to the first function and control reciprocity transmit signal power, and described method further comprises:
Determine transmitted power level control parameter, and
The wherein said step of controlling reciprocity transmit signal power according to the first function comprises:
In described the first function, except recording described in using, receive power level and also use described determined transmitted power level to control parameter.
14. methods as claimed in claim 13, is characterized in that, determine that described transmitted power level control parameter comprises:
Access comprises the memory of the control of the transmitted power level corresponding to the different service class parameter of storing; And
The transmitted power level corresponding to the service class corresponding with described Wireless Telecom Equipment that retrieve stored is controlled parameter.
15. methods as claimed in claim 13, is characterized in that, determine that described transmitted power level control parameter comprises:
From be received from the signal of described base station by described communication equipment, recover controlling value.
16. methods as claimed in claim 15, is characterized in that, the described signal that recovers controlling value from it is described first signal.
17. methods as claimed in claim 15, it is characterized in that, determine that described transmitted power level controls parameter and comprise one of following: i) the described controlling value recovering is controlled to parameter and ii as described transmitted power level) based on the described controlling value recovering with calculate described transmitted power level corresponding to the service class of described Wireless Telecom Equipment and control parameter.
18. methods as claimed in claim 15, is characterized in that, described in the controlling value that recovers be interference level indicator value.
19. 1 kinds of Wireless Telecom Equipments of supporting peer-to-peer communications, described Wireless Telecom Equipment comprises:
Wireless receiver module, for receiving the signal from base station;
Measurement module, for receiving that to described signal carries out power measurement; And
Equity transmit power control module, for according to the described power measurement of receiving signal being controlled to the reciprocity transmitted power level of at least some reciprocity signals transmission.
20. Wireless Telecom Equipments as claimed in claim 19, is characterized in that, further comprise:
Authorization module, for receiving recording Wireless Telecom Equipment described in power determination and should preventing the reciprocity signal of transmitting of signal described in basis.
21. Wireless Telecom Equipments as claimed in claim 20, is characterized in that, further comprise:
Transmitting set module; And
Equity transmission control module is controlled the reciprocity signal of described transmitting set module prevention transmitting, until determine that described Wireless Telecom Equipment is allowed to launch reciprocity signal for should prevent the reciprocity signal of transmitting at definite described communication equipment after.
22. Wireless Telecom Equipments as claimed in claim 21, is characterized in that, described authorization module determines that from the power measurement information of the signal from described base station described Wireless Telecom Equipment is allowed to launch reciprocity signal.
23. Wireless Telecom Equipments as claimed in claim 19, is characterized in that, described signal is to receive as in the frequency band in order to the uplink band to described base station transmit signals; And wherein said reciprocity signal is launched in described uplink band.
24. Wireless Telecom Equipments as claimed in claim 19, is characterized in that, described signal is to receive in the frequency band of the downlink band of using as described base station; And wherein said reciprocity signal is launched in another frequency band.
25. Wireless Telecom Equipments as claimed in claim 19, it is characterized in that, described reciprocity transmit power control module is used the first function, described the first function for first receive signal power level compared with for higher than described first receive second of signal power level receive signal power level by reciprocity transmission power limit on lower level.
26. Wireless Telecom Equipments as claimed in claim 19, is characterized in that, described reciprocity transmit power control module in response to higher recording receive signal power level by reciprocity transmission power limit on lower level.
27. Wireless Telecom Equipments as claimed in claim 25, is characterized in that, described reciprocity transmit power control module comprises:
Maximum reciprocity transmitted power level is determined submodule, for using described the first function to determine maximum reciprocity transmitted power level; And
Actual reciprocity transmitted power level is determined submodule, for determining actual reciprocity signal transmission power level according to the reciprocity transmitted power level of described maximum and the reciprocity signal that receives from the second peer communications devices.
28. Wireless Telecom Equipments as claimed in claim 27, is characterized in that, the reciprocity transmitted power level of determined reality is less than or equal to the reciprocity transmitted power level of described maximum.
29. Wireless Telecom Equipments as claimed in claim 25, is characterized in that, further comprise:
Wide area network transmit power control module, the higher transmitted power level of described reciprocity transmitted power level using for the transmitting power of the signal to the transmitting of described base station being controlled to described at least some the reciprocity signal transmission of comparison.
30. Wireless Telecom Equipments as claimed in claim 29, it is characterized in that, with the second function that is different from described the first function to receive that based on described recording of base station signal receive that power level determines control from the transmitting power of the described signal of base station transmitting described in described wide area network transmit power control module subtend to the transmitted power level of the signal of described base station transmitting that carry out.
31. Wireless Telecom Equipments as claimed in claim 29, is characterized in that, described reciprocity emitted signal power level is at least than the low 10dB of transmitted power level of the described signal to the transmitting of described base station.
32. Wireless Telecom Equipments as claimed in claim 19, is characterized in that, described reciprocity transmit power control module is controlled reciprocity transmit signal power according to the first function, and described Wireless Telecom Equipment comprises:
Power level is controlled parameter determination module, for determining transmitted power level control parameter,
Wherein said reciprocity transmit power control module is received power level and is also used described determined transmitted power level to control parameter except recording described in using in described the first function.
33. Wireless Telecom Equipments as claimed in claim 32, is characterized in that, described power level is controlled parameter determination module and determined described transmitted power level control parameter according to identified service class, and described Wireless Telecom Equipment also comprises:
The memory that comprises the control of the different transmit power levels corresponding to the different service class parameter of storing; And
Service class identification module, for identifying the current service rank corresponding to described Wireless Telecom Equipment, and
Wherein said power level is controlled parameter determination module and is comprised the retrieval module of controlling parameter for detecting the transmitted power level corresponding to the service class corresponding with described Wireless Telecom Equipment of storing.
34. Wireless Telecom Equipments as claimed in claim 32, is characterized in that, described power level is controlled parameter determination module and comprised:
Control parameter and recover module, for recovering controlling value from be received from the signal of described base station by described communication equipment.
35. Wireless Telecom Equipments as claimed in claim 34, is characterized in that, the described signal that recovers controlling value from it is received described in being and recorded base station signal.
36. Wireless Telecom Equipments as claimed in claim 34, it is characterized in that, described power level is controlled parameter determination module by comprising following i) and operation one of ii) determine that described transmitted power level controls parameter, wherein i) controlling value recovering is controlled to parameter and ii as described transmitted power level) based on the described controlling value recovering with corresponding to the service class of described Wireless Telecom Equipment, calculate described transmitted power level control parameter.
37. Wireless Telecom Equipments as claimed in claim 34, is characterized in that, described in the controlling value that recovers be interference level indicator value.
38. 1 kinds of Wireless Telecom Equipments of supporting peer-to-peer communications, described Wireless Telecom Equipment comprises:
For receiving the wireless receiver apparatus from the signal of base station;
Be used for the device of receiving signal execution power measurement to described; And
For according to the described power measurement of receiving signal being controlled to the device of the reciprocity transmitted power level of at least some reciprocity signals transmission.
39. Wireless Telecom Equipments as claimed in claim 38, it is characterized in that, describedly for the device of controlling, use the first function, described the first function for first receive signal power level compared with for higher than described first receive second of signal power level receive signal power level by reciprocity transmission power limit on lower level.
40. Wireless Telecom Equipments as claimed in claim 38, is characterized in that, describedly for the device of controlling, according to the first function, control reciprocity transmit signal power, and described Wireless Telecom Equipment also comprises:
For determining the control parameter determining device of transmitted power level control parameter,
Wherein saidly for the device controlled, at described the first function, except recording signal power described in using, also use described determined transmitted power level to control parameter.
41. Wireless Telecom Equipments as claimed in claim 40, is characterized in that, described control parameter determining device also comprises:
For recover the device of controlling value from be received from the signal of described base station by described communication equipment.
42. Wireless Telecom Equipments as claimed in claim 41, is characterized in that, described in the controlling value that recovers be interference level indicator value.
43. Wireless Telecom Equipments as claimed in claim 38, is characterized in that, further comprise:
For receiving the device from another signal of described base station with the time that receives the asynchronism(-nization) of described signal;
For described another being received to signal, carry out the device of measuring; And
For receiving the device that Wireless Telecom Equipment described in power determination should be prevented the reciprocity signal of transmitting that records of signal according to described another.
44. Wireless Telecom Equipments as claimed in claim 40, is characterized in that, described control parameter determining device comprises:
For accessing the device of the memory that comprises the control of the transmitted power level corresponding to the different service class parameter of storing; And
The transmitted power level corresponding to the service class corresponding with described Wireless Telecom Equipment of for retrieve stored is controlled the device of parameter.
45. 1 kinds of communication systems, comprising:
The first Wireless Telecom Equipment, comprising:
First receives signal power measurement module, for measuring the power of the signal of receiving from base station;
Equity signal transmission power control module, for according to the first function based on receiving that by described first the power of the signal from described base station that signal power measurement module is measured controls reciprocity signal transmission power level; And
The second Wireless Telecom Equipment, comprising:
Second receives signal power measurement module, for measuring the power level of the signal of receiving from described base station; And
Wide area network signal transmission power control module, for according to the second function based on receiving that by described second the power of the signal from described base station that signal power measurement module is measured controls wide area signal transmission power level, described the second function is different from described the first function.
46. communication systems as claimed in claim 45, is characterized in that, for recording the set-point of receiving signal power, the first function is determined higher transmitted power level described in described the second function ratio.
47. systems as claimed in claim 46, is characterized in that, described the first and second functions receive that for given recording between the determined transmitted power level of signal power level, the difference in dB is at least 10dB.
48. systems as claimed in claim 47, is characterized in that, described the first Wireless Telecom Equipment also comprises:
Difference update module, for receiving from the difference indicator value of described base station and upgrading described the first function based on the described difference indicator value of receiving.
49. systems as claimed in claim 47, is characterized in that, described difference is scheduled to, and wherein said the first Wireless Telecom Equipment comprises that storage is by the memory of the indicating device of the described predetermined difference value of being used by described the first function.
50. communication systems as claimed in claim 46, is characterized in that, described reciprocity signal transmission power level is permitted maximum equity signal transmission power level; And
Wherein said wide area signal transmission power level is maximum wide area signal transmission power level.
51. communication systems as claimed in claim 46, is characterized in that, also comprise:
The 3rd Wireless Telecom Equipment, described the 3rd Wireless Telecom Equipment comprises:
Receive signal power measurement module, for measuring the power level of the signal of receiving from described base station;
Equity power control module, controls reciprocity signal transmission power level for the power that records of the signal based on from described base station according to described the first function; And
Wide area network signal transmission power control module, controls wide area signal transmission power level for the power that records of the signal based on from described base station according to described the second function.
52. communication systems as claimed in claim 51, is characterized in that, also comprise described base station, and described base station comprises:
Equity interference management module, for determining reciprocity transmitted power level controlling value; And
Transmitter, for launching described reciprocity transmitted power level controlling value.
53. communication systems as claimed in claim 52, is characterized in that, described base station also comprises:
Interference signal measurement module, provides measured signal to disturb for measure signal interference during the empty ul transmissions period and to described reciprocity interference management module.
CN200780041997.3A 2006-09-15 2007-09-14 Methods and apparatus related to power control and/or interference management in a mixed wireless communications system Active CN101543121B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110443971.XA CN102404835B (en) 2006-09-15 2007-09-14 To the method and apparatus that the power in mixed wireless communications system controls and/or interference management is relevant

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US84505306P 2006-09-15 2006-09-15
US60/845,053 2006-09-15
US11/764,366 2007-06-18
US11/764,366 US8369800B2 (en) 2006-09-15 2007-06-18 Methods and apparatus related to power control and/or interference management in a mixed wireless communications system
PCT/US2007/078448 WO2008034029A2 (en) 2006-09-15 2007-09-14 Methods and apparatus related to power control and/or interference management in a mixed wireless communications system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201110443971.XA Division CN102404835B (en) 2006-09-15 2007-09-14 To the method and apparatus that the power in mixed wireless communications system controls and/or interference management is relevant

Publications (2)

Publication Number Publication Date
CN101543121A CN101543121A (en) 2009-09-23
CN101543121B true CN101543121B (en) 2014-02-26

Family

ID=41040633

Family Applications (4)

Application Number Title Priority Date Filing Date
CN200780038383.XA Active CN101523961B (en) 2006-09-15 2007-09-13 Methods and apparatus related to peer to peer device control
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
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

Family Applications Before (3)

Application Number Title Priority Date Filing Date
CN200780038383.XA Active CN101523961B (en) 2006-09-15 2007-09-13 Methods and apparatus related to peer to peer device control
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
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

Country Status (1)

Country Link
CN (4) CN101523961B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8839362B2 (en) * 2006-07-31 2014-09-16 Motorola Mobility Llc Method and apparatus for managing transmit power for device-to-device communication
US9344997B2 (en) 2010-10-13 2016-05-17 Nokia Technologies Oy Selection of communication mode
US9288743B2 (en) * 2011-04-01 2016-03-15 Intel Corporation Uplink power control scheme for distributed RRH systems with same cell ID
US9137655B2 (en) * 2011-10-07 2015-09-15 Qualcomm Incorporated Methods and apparatus for supporting peer to peer communications
US20130201915A1 (en) * 2012-02-07 2013-08-08 Htc Corporation Apparatuses and methods for out-of-band information feedback
US9014113B2 (en) * 2012-09-21 2015-04-21 Blackberry Limited User equipment architecture for inter-device communication in wireless communication systems
CN103857070B (en) * 2012-12-06 2017-08-04 中国电信股份有限公司 Suppress method, unit and the mobile terminal of multimode interference
KR102213461B1 (en) * 2013-02-15 2021-02-08 삼성전자 주식회사 Method and apparatus for power control and multiplexing for device to device communication in wirelss cellular communication system
EP3883304B1 (en) 2013-02-15 2022-12-14 Samsung Electronics Co., Ltd. Method and apparatus for power control and multiplexing for device to device communication in wireless cellular communication system
US9344257B2 (en) * 2013-09-06 2016-05-17 Telefonaktiebolaget Lm Ericsson (Publ) Adaptation of transmission parameters
KR102137648B1 (en) * 2014-05-09 2020-07-24 후아웨이 테크놀러지 컴퍼니 리미티드 Apparatus and method for controling transmission power in wireless communication system
CN105517136B (en) * 2016-01-28 2019-01-25 武汉慧联无限科技有限公司 The method that dynamic adjusts emission power of wireless terminal
IT201600072521A1 (en) * 2016-07-12 2018-01-12 Inst Rundfunktechnik Gmbh MOBILFUNKKOMMUNIKATION MIT VERBESSERTER SENDE- UND EMPFANGSQUALITÄT
CN108471326B (en) * 2018-03-01 2021-02-02 Oppo广东移动通信有限公司 Antenna switching method and device, storage medium and electronic equipment
WO2023178598A1 (en) * 2022-03-24 2023-09-28 Zte Corporation Multiple carrier transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377608B1 (en) * 1998-09-30 2002-04-23 Intersil Americas Inc. Pulsed beacon-based interference reduction mechanism for wireless communication networks
JP3802372B2 (en) * 2001-05-16 2006-07-26 株式会社エヌ・ティ・ティ・ドコモ Mobile communication system
CN1527623A (en) * 2003-03-07 2004-09-08 �ʼҷ����ֵ��ӹɷ����޹�˾ Method and apparatus for establishing and retaining point-to-point communication radio chaining in radio communication network
US7539507B2 (en) * 2003-11-21 2009-05-26 Qualcomm Incorporated Peer-to-peer communications

Also Published As

Publication number Publication date
CN101518121A (en) 2009-08-26
CN101523961B (en) 2012-08-08
CN101523961A (en) 2009-09-02
CN101558577A (en) 2009-10-14
CN101543121A (en) 2009-09-23
CN101558577B (en) 2013-08-14

Similar Documents

Publication Publication Date Title
CN101543121B (en) Methods and apparatus related to power control and/or interference management in a mixed wireless communications system
CN102404835B (en) To the method and apparatus that the power in mixed wireless communications system controls and/or interference management is relevant
KR101110898B1 (en) Methods and apparatus related to peer to peer device control
KR101166958B1 (en) Methods and apparatus related to a multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling
KR101086134B1 (en) 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
CN102006263B (en) Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier
CN101940032B (en) Methods and apparatus for making a handoff determination as a function of service level indicating metrics
CN101690043A (en) Methods and apparatus for selecting and/or using a communications band for peer to peer signaling
CN101690296A (en) Methods and apparatus for monitoring for signals and selecting and/or using a communications band based on the monitoring results
CN101690343A (en) Methods and apparatus for selecting a communications band based on location information

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant