CN101595650A - Adopt the techniques for high data rates of improved channel reference - Google Patents

Adopt the techniques for high data rates of improved channel reference Download PDF

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Publication number
CN101595650A
CN101595650A CNA2008800028194A CN200880002819A CN101595650A CN 101595650 A CN101595650 A CN 101595650A CN A2008800028194 A CNA2008800028194 A CN A2008800028194A CN 200880002819 A CN200880002819 A CN 200880002819A CN 101595650 A CN101595650 A CN 101595650A
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Prior art keywords
pilot
channel
power
control
base station
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Chinese (zh)
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S·A·伦德比
S·D·桑布瓦尼
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Qualcomm Inc
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Qualcomm Inc
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Priority to CN201611069551.9A priority Critical patent/CN106912093B/en
Publication of CN101595650A publication Critical patent/CN101595650A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels

Abstract

Promotion pilot channel prioritization scheme has been described to carry out high data rate communication system for transmitting and method.In each exemplary realization, the pilot channel operation by exemplary base for one or more crew-served wireless terminals (for example, subscriber equipment) monitors and control, make one or more power characteristics of one or more crew-served wireless terminals exemplarily to change in response to the pilot channel operational circumstances of one or more selections.In exemplary operation, part as pilot channel optimization, exemplary base participates in the pilot channel control operation of one or more selections, these operations comprise: the jump detection technique, carry out power control at another channel but not on the DPCCH, power control is delayed in participation, participates in soft switching power control under the situation of the pilot channel that promotes, and solves because pilot tone promotes bluring in the authorization messages that produces.

Description

Adopt the techniques for high data rates of improved channel reference
The cross reference of related application
The application compiles the 119th U.S. Provisional Patent Application sequence number 60/886 that requires that on January 22nd, 2007 submitted to, name to be called " BOOSTED UPLINK PILOT IN W-CDMA " according to United States code the 35th, 085 priority is incorporated the full content of this application into this specification by reference.
Technical field
Put it briefly, the present invention relates to radio communication, specifically, relate to improved uplink pilot.
Background technology
For various communications are provided, widespread deployment wireless communication system, for example, provide voice and/or data by these wireless communication systems.Typical wireless communication system or network can be a plurality of users visit to one or more shared resources are provided.For example, these systems can be multi-address systems, and it can support a plurality of users to communicate by letter simultaneously by sharing available system resource (for example, bandwidth and through-put power).The example of this class multi-address system comprises code division multiple access (CDMA) system, time division multiple access (TDMA) system, frequency division multiple access (FDMA) system and OFDM (OFDMA) system.
Coherent demodulation to data channel depends on the phase place of transmission link introducing and the derivation of changes in amplitude usually.Usually, on the transmission link better phase place of higher data rate requirement and amplitude with reference to so that carry out good operation.This amplitude and phase reference are provided by pilot frequency sequence or channel usually.
For instance, on the up link of W-CDMA, be that the signal to noise ratio (snr) that 16 kilobits per seconds (Kb/s) are carried out the transmission requirement pilot channel is approximately Ec/Nt=-20dB with data rate.On the other hand, if data rate is increased to 11 MBPSs (Mbit/s), the signal to noise ratio of then carrying the channel (be called " Dedicated Physical Control Channel ", or DPCCH) of pilot tone should be about Ec/Nt=-2dB.This higher SNR can obtain by the transmitting power that increases the transmitter DPCCH of place.
The increase of the data rate that the transmitting power that current and previous W-CDMA version does not allow subscriber equipment (UE) independently to change pilot channel obtains to transmit, thereby produce low efficient.Along with introduce higher data rate on the up link (UL) in the version of following W-CDMA of expection and other system, these low efficient will more remarkable, thereby obstruction is to the support of high data rate communication.
In current practice, increase that the internal loop of fast power control sends and minimizing order are based on the SNR measured value at place, base station pilot bits.It's a pity, the current deployment of base station can't be distinguished following situation in the current W-CDMA version: a) increase of the transmitting power of the DPCCH that is initiated by UE (promptly, because the transmission of high data rate), and b) the improving of Radio Link (better path loss, the minimizing of interference level).In these two kinds of situations, systematic observation is increased to pilot tone SNR and has surpassed target SNR, and sends and reduce order.For its correct behavior of base station should be that the situation that only is improved at Radio Link is sent the minimizing order.
In addition, in current practice, when send under the situation that the transmitting power of DPCCH increases when reducing order the base station, the base station is used for reducing effectively the SNR of high data rate transfer, thereby has reduced its performance.In addition, in current practice, after UE finishes the transmission high-rate packets, owing to UE has carried out the pilot tone that the minimizing order of not expecting produces low SNR, make lower data rate transport to fail, improved efficient in the pilot transmit power (for example, promoting) will not exist.
According to above-mentioned situation, need to improve the system and method for the defective that has way now in the art.
Summary of the invention
For one or more embodiment there being a basic understanding, provided the simplified summary of these embodiment below.This summary part is not the general overview to all pre-interim embodiment, neither will determine key or the important component part of all embodiment, neither describe the scope of any one embodiment or all embodiment.Unique purpose is to describe some notions of one or more embodiment simply, with this preamble as the detailed description of back.
According to one or more exemplary realizations and corresponding disclosing thereof, in conjunction with promoting adaptive uplink pilot multiplexing to describe various aspects.In each embodiment, the authorization messages of handling on pilot channel by management comes uplink pilot is optimized at high-speed transfer.
According to related aspect, the application has described the method that promotes to improve pilot tone efficient.Described method can be included in determines the uplink pilot channel information in the base station.In addition, described method can comprise the uplink pilot channel information is sent to one or more crew-served wireless terminals, so that promote uplink pilot according to one or more crew-served terminals in a predetermined manner.In exemplary realization, as the part that pilot channel is optimized, the base station is used for transmitting pilot channel data between crew-served wireless terminal, makes pilot channel data be handled by crew-served wireless terminal.
In exemplary operation, but exemplary base monitored pilots channel, and detect jump in its (signal to noise ratio) level.In exemplary operation, if exemplary base has detected the increase of pilot level since previous transmission time slot greater than the decibel value of selecting, then exemplary base is operated under the power control mode of selecting.As an illustration, selected power control mode is ignored the SNR measured value in being included in during next Transmission Time Interval (TTI).
In another exemplary operation, wherein exemplary base is known the level that pilot signal is carried out exemplary lifting, and exemplary base is used for that the pilot tone SNR that records is carried out normalization and promotes with the compensation pilot tone.In exemplary realization, then, normalized SNR is used by exemplary power control internal loop.In exemplary operation, exemplary base can compare by pilot tone SNR that receives and the pilot tone SNR that receives in the time that does not promote in will be during the time slot that promotes, and comes estimating pilot frequency to promote.With mode of operation, this results estimated can be used to the SNR that records is carried out normalization.
In another exemplary operation, exemplary base can be forbidden the power control on first time slot of the wireless transmission that pilot tone promoted, and the normalized SNR of this operation hypothesis has not changed since the time slot in the past.As an illustration, with mode of operation, during one or more subsequent timeslots in, exemplary base can use the difference between the continuous slot to upgrade the estimated value of normalized SNR.Then, normalized SNR is controlled by inner loop power and uses.
In another exemplary operation, exemplary base can be measured power or the SNR that receives on the control channel, for example the Dedicated Physical Control Channel of the enhancing of W-CDMA (E-DPDCH).As an illustration, with mode of operation, if exemplary base detects the power of existence from the essence of wireless terminal, then exemplary base can promote pilot tone, and carries out the power mode operation of one or more selections.
In another exemplary operation,, just on control channel, carry out power control in case exemplary base detects signal at control channel or data channel.For example, in W-CDMA, control channel can be the Dedicated Physical Control Channel (E-DPCCH) that strengthens, and data channel can be the Dedicated Physical Data Channel (E-DPDCH) that strengthens.As an illustration, the SNR of control channel is estimated by exemplary base and is used for inner loop power to control.As an illustration, with mode of operation, the SNR of estimated control channel is adjusted to represent normalized pilot power, power control can exemplarily be used for using the SNR estimated value of being adjusted.
In another exemplary operation, forbidding power control when exemplary base can begin at each TTI that subscriber equipment (UE) (for example, one or more crew-served wireless terminals) can adopt the pilot tone of lifting to send.Because exemplary base can be controlled the transmission of UE is controlled by one or more authorization of messages or by DTX, exemplary base can determine when UE can adopt the pilot tone of lifting to send with mode of operation.As an illustration, when can reactivating power to control channel (E-DPCCH among the W-CDMA) when decoding, exemplary base controls.In exemplary operation, control channel transmits and is sending any form from exemplary base and one or more transmitting set, and whether UE is using pilot tone to promote.In exemplary operation, the exemplary base use is carried out decoded results to control channel and is come DPCCH pilot tone SNR estimated value is carried out normalization.
In another exemplary realization, exemplary base can be forbidden power control under the situation of UE lifting pilot tone.As an illustration, exemplary base can be monitored the situation of UE lifting pilot tone and limit the frequency that their occur by transmitting authorization messages to one or more UE.In exemplary realization, exemplary base can send absolute grant message to one or more wireless terminals, allows one or more wireless terminals (for example, UE) to use the pilot tone that promotes at specific TTI to send high data rate.
For achieving the above object with relevant purpose, below comprising, one or more exemplary realizations will fully describe and each feature of listing of emphasis in the claims.Following description and accompanying drawing illustrate these one or more exemplary realizations with way of example each side.But these aspects only illustrate a handful of method in the whole bag of tricks of the basic principle that can use each exemplary realization, and described exemplary realization is intended to comprise all these aspects and equivalent thereof.
Description of drawings
Fig. 1 shows the wireless communication system of the various aspects that provide according to this paper.
Fig. 2 shows the otherwise wireless communication system according to the present invention.
Fig. 3 A shows the exemplary unrestriced high level block diagram of the system that various aspects promotion pilot channel is optimized according to the present invention.
Fig. 3 B shows that the various aspects base station makes uplink pilot be optimized from a plurality of subscriber equipment received signals according to the present invention.
Fig. 4 has illustrated according to the present invention the exemplary unrestricted pilot tone prioritization scheme of various aspects.
Fig. 5 shows the communicator that various aspects are implemented according to the present invention in wireless communications environment.
Fig. 6 shows each embodiment that describes according to the application and is used for the illustrative high layer method that uplink pilot is optimized.
Fig. 7 shows each embodiment that describes according to the application and is used for the illustrative high layer method that uplink pilot is optimized.
Fig. 8 shows the example communication system that realizes according to various aspects, and it comprises a plurality of sub-districts.
Fig. 9 shows according to each embodiment in conjunction with the system that uses about the pilot tone optimization of subscriber equipment.
Figure 10 shows the exemplary non-limiting block diagram of the base station of the various aspects according to the present invention.
Figure 11 shows the system that uses in conjunction with the uplink pilot channel allocation according to each illustrative realization.
Figure 12 shows the example wireless terminal (for example, wireless terminal, mobile device, end points etc.) that realizes according to each exemplary realization.
Figure 13 shows the exemplary non-limiting block diagram of the communication system of optimizing in conjunction with uplink pilot according to the various aspects of exemplary realization described herein and operation.
Figure 14 shows the exemplary unrestricted device of optimizing according to the support pilot tone of each exemplary realization.
Figure 15 shows according to each exemplary realization and promotes the exemplary unrestricted device that pilot tone is optimized.
Embodiment
Describe each embodiment with reference to the accompanying drawings, in the text, identical mark is used to represent identical parts.In the following description,, provided a lot of concrete details, one or more embodiment have been reached thorough understanding so that realize for ease of explaining.But clearly, these embodiment also can not need these details to realize.In other example, for ease of describing one or more embodiment, known structure and equipment are that the form with block diagram provides.
In addition, various aspects of the present invention have also been described below.Apparently, disclosure herein can be implemented with various ways widely, and any ad hoc structure disclosed herein and/or function only are representational.Based on the disclosure of this paper, it should be appreciated by those skilled in the art that an aspect disclosed herein can be independent of any other aspect and realize, and two or more these aspects can make up in every way.For example, can use the given aspect of any amount this paper, come implement device and/or method is implemented.In addition, can be additional to one or more aspects that this paper provides or replace one or more aspects that this paper provides and use other structure and/or function, come implement device and/or method is implemented.As an example, many methods as herein described, equipment, system and device are that background is described to promote uplink pilot in the W-CDMA communication system.It should be appreciated by those skilled in the art that similar techniques can be applied to other communication environment.
Used in this application " parts ", " module ", " system " etc. mean the entity relevant with computer, and it can be combination, software, executory software, firmware, middleware, microcode and/or its combination in any of hardware, firmware, hardware and software.For example, parts can be but be not limited to: the thread of the process of moving on the processor, processor, object, executable program, execution, program and/or computer.For instance and without limitation, the application program of moving on computing equipment and this computing equipment can be parts.One or more parts can be positioned at an executory process and/or thread, and parts can be on the computer and/or be distributed between two or more the computers.In addition, can carry out these parts by the multiple computer-readable medium of having stored plurality of data structures.These parts can be by this locality and/or remote process (for example, according to signal with one or more packets) communicate (as, from being undertaken alternately by signal in the data of parts and local system, the distributed system and/or by the miscellaneous part in the network that has other system such as the Internet etc.).In addition, as what those of ordinary skills can understand be, the parts of system described herein can rearrange and/or replenish by extra parts, so that realize various aspects described herein, purpose, advantage etc., and are not subject to the accurate configuration of setting forth in the accompanying drawing.
In addition, combining wireless terminal or subscriber equipment (UE), this paper has described a plurality of embodiment.Wireless terminal or UE can also be called system, subscriber unit, subscriber station, mobile radio station, travelling carriage, mobile device, station, a distant place, remote terminal, UE, user terminal, terminal, Wireless Telecom Equipment, user agent or user's set.Wireless terminal or UE can be that cell phone, cordless telephone, Session Initiation Protocol phone, wireless local loop (WLL) are stood, PDA(Personal Digital Assistant), the handheld device with wireless connections ability, computing equipment or be connected to other treatment facility of radio modem.In addition, this paper has also described each embodiment in conjunction with the base station.The base station can be used for communicating with one or more wireless terminals, and it can also be called access point, Node B or some other terms.
In addition, various aspects as herein described can be embodied as the goods of method, device or use standard program and/or engineering.Term used herein " goods " is contained can be from the computer program of any computer readable device, carrier or medium access.For example, computer-readable medium includes, but are not limited to: magnetic memory device (for example, hard disk, floppy disk, tape etc.), CD (for example, laser-optical disk (CD), digital versatile disc (DVD) etc.), smart card and flash memory device (for example, EPROM, card, rod, key formula driver etc.).In addition, various storage medium as herein described is expressed as one or more equipment and/or other machine readable media that is used for stored information.Should be understood that in addition, can use carrier wave to carry computer-readable electronic or instruction, as at transmission and receiving voicemail, carry out those data and the instruction of using in the appointed function in accesses network (as cellular network) or at indicating equipment.Therefore, term " machine readable media " includes but not limited to can store, comprise and/or carry wireless channel and various other medium of instruction and/or data.Certainly, those skilled in the art will recognize that,, can make various modifications the disclosed embodiments not breaking away from the present invention's description and protection range that requires or the spiritual basis.
In addition, the term that uses among the application " exemplary " speech means as example, illustration or explanation.This paper is described as any embodiment of " exemplary " or design and will be interpreted as inevitably than other embodiment or design more preferably or have more advantage.Definite, usage example one speech is to want to express design in concrete mode." perhaps " speech that uses among the application is to represent " perhaps " of comprising property rather than " perhaps " of exclusiveness.That is to say, unless otherwise indicated, perhaps can know and learn, otherwise the meaning of " X uses A or B " is any natural comprising property arrangement from context.That is to say that if X uses A, X uses B, perhaps X use A and B the two, then under above-mentioned any one example, all satisfy " X use A or B ".In addition, can know that learning is the expression singulative unless otherwise indicated or from context, otherwise " one " and " one " that uses in the application and additional claims usually should be interpreted as representing " one or more ".
Term used herein " deduction " or " inference " are commonly referred to as the one group of observed result that obtains according to by incident and/or data, carry out about the reasoning process of system, environment and/or User Status or the process of inference system, environment and/or User Status.For example, inference can be used for discerning specific interior perhaps action, or the probability distribution of the state of generation.This inference is probabilistic, that is to say, according to data of being considered and incident, relevant probability distribution over states is calculated.Inference also refers to be used for constitute according to event set and/or data set the technology of advanced event.Whether the event set that this inference makes according to the observation and/or event data, the incident of storage be relevant on the closely close time, and whether incident and data construct new incident or action from one or several incidents and data source.
Technology described herein can be used for various wireless communication systems, for example code division multiple access (CDMA) network, time division multiple access (TDMA) network, frequency division multiple access (FDMA) network, OFDM (OFDMA) network, Single Carrier Frequency Division Multiple Access (SD-FDMA) network or the like.Term " network " and " system " are mutual usually to be used.Cdma network can use radiotechnics, for example, and general land wireless access (UTRA), cdma2000 etc.UTRA comprises wideband CDMA (W-CDMA), TD-SCDMA and TD-CDMA.Cdma2000 is contained IS-2000, IS-95 and IS-856 standard.Tdma system can use radiotechnics, for example, and global system for mobile communications (GSM).The OFDMA network for example can realize evolution UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE802.20,
Figure A20088000281900161
Deng radiotechnics.UTRA, E-UTRA and GSM are the parts of universal mobile communications network (UMTS).Long Term Evolution (LTE) is the UMTS that will issue, and it has used E-UTRA.UTRA, E-UTRA, GSM, UMTS and LTE describe in the document of " third generation partner program " tissue (3GPP) by name.Cdma2000 describes in the document of " third generation partner program 2 " tissue (3GPP2) by name.These various radiotechnicss and standard are well known in the art.For clarity sake, be described aspect some of above-mentioned technology in the context of the uplink pilot multiplexing that is applicable to LTE below, therefore, the major part that the 3GPP term can be used for hereinafter being fit to is described.
Pilot channel promotes:
System and method target described herein is to improve the shortcoming that has now in the practice that operation is optimized to pilot channel, and reduces appearance because the shortage that pilot channel power is controlled causes the invalid situation of high data rate transfer.In exemplary realization, provide the autonomous increase ability that (lifting) carries the level of pilot channel to UE.For example, this channel is called Dedicated Physical Control Channel (DPCCH) in W-CDMA.In exemplary operation, the transformat that UE can use on data channel according to UE promptly, increases the transmitting power of DPCCH according to the data rate of data channel.As an illustration, behind DTD, UE exemplarily is used for the power of DPCCH is reduced the amount that is promoted, to return in the normal power level operation.
In another exemplary realization, can increase (lifting) control channel level, for example strengthen Dedicated Physical Control Channel among the W-CDMA.In exemplary operation, earlier E-DPCCH is decoded, according to the scheme of selecting modulation symbol is overturn so that E-DPCCH is transformed to pilot reference then.In exemplary operation, then, E-DPCCH and DPCCH are merged, improved phase place and amplitude reference are provided, be used for other channels (for example DPDCH) are carried out demodulation.
In exemplary realization, dispose fast power control reduce since the variation of propagation channel and interference level in the quick variation of the pilot channel SNR of receiver place.As an illustration, the current fast power control of using on the up link of W-CDMA depends on two loops usually: internal loop and external loop-around.In exemplary operation, internal loop can carry out a kind of operation, wherein exemplary base (for example, Node B, RNC or other architecture unit) operationally the measurement pilot frequency bit SNR and SNR and the target SNR that records compared, (for example relatively to come based on this to one or more crew-served wireless terminals, subscriber equipment-UE) sends increases or reduces order, with the SNR that keeps recording near target SNR.As an illustration, when UE received the increase order, it operationally increased by a step-length with its channel power.As an illustration, when UE receives from any sub-district (for example, crew-served base station) of the active set of its crew-served sub-district when reducing order, it operationally reduces channel power one step-length.
Yet in current practice, the increase that internal loop sent of fast power control and minimizing order are normally measured based on the SNR of place, base station pilot bits.The W-CDMA base station can not be used to distinguish following: a) because UE is sending high data rate transfer, thereby the increase that UE initiates, and b to the transmitting power of DPCCH) the improving of Radio Link (the better minimizing of path loss, interference level, other).In current practice, under two kinds of situations, the SNR that pilot tone is observed in the base station is increased to and has exceeded target SNR, and sends and reduce order.Yet the action of wanting should be only to be sent at situation (b) by the base station to reduce order.
Reduce order by sending in situation (a), the SNR of high data rate transfer has been reduced in the base station, thereby makes its decreased performance.In addition, after UE has finished the transmission high-rate packets, the lifting of pilot transmit power will stop.Therefore and since the UE executed minimizing order of not expecting, pilot tone may be in low SNR, makes the failure of any lower data rate transport.
In order to overcome the shortcoming of existing internal loop practice, in the wireless communication system that system and method described herein provides, operationally pilot tone is measured and is detected to the exemplary base illustrative jump of its level.In exemplary operation, if exemplary base detect begin pilot level from previous observed time slot increase greater than Δ dB, exemplary base data of the pilot tone that promotes of storage representation operationally then.In exemplary operation, exemplary base is the operand power control loop in a conventional manner, and be used to carry out the operation of one or more following illustrative, detecting the pilot tone after the possible lifting, and power switched control is to operate in the described a kind of pattern of exemplary operation in front.
In exemplary operation, exemplary base monitored pilots channel also detects the jump of its (signal to noise ratio) level.In exemplary operation, if exemplary base detect begin pilot level from the time slot of previous transmission increase greater than selected decibel value, then exemplary base is operated under selected power control mode.As an illustration, ignore SNR in selected power control mode is included in during the next Transmission Time Interval (TTI) and measure, and give one or more UE, make one or more UE not change its average transmit power power control command transmitting.
In another exemplary operation, wherein exemplary base is known the exemplary lift level to pilot signal, and exemplary base is used for the pilot tone SNR that records is carried out normalization, compensates pilot tone and promotes.In exemplary realization, then, normalized SNR is used by exemplary power control internal loop.In exemplary operation, exemplary base by the pilot tone SNR that will in promoting time slot, receive with do not promoting the pilot tone SNR that receives in the time period and compare estimating pilot frequency to promote.Operationally, this estimated result can be used to the SNR that records is carried out normalization.
In another exemplary operation, exemplary base forbidding has the power control on first time slot of wireless transmission of pilot tone of lifting, and this operation supposes that normalized SNR does not change from last time slot.As an illustration, with mode of operation, during one or more subsequent timeslots, exemplary base can use the difference between the continuous slot to upgrade the estimated value of normalization SNR.Subsequently, normalized SNR is used by inner loop power control.
In another exemplary operation, exemplary base is measured power or the SNR that receives on the Dedicated Physical Control Channel (E-DPDCH) strengthening.As an illustration, with mode of operation, if the substantial power that exemplary base detects from one or more UE exists, then exemplary base is used to make pilot tone to promote, and carries out one or more selected power mode operations.
In another exemplary operation,, just on E-DPCCH, carry out power control in case exemplary base detects signal on the Dedicated Physical Data Channel (E-DPDCH) of Dedicated Physical Control Channel (E-DPCCH) that strengthens or enhancing.As an illustration, the SNR of E-DPCCH can be estimated and be used for inner loop power to control by exemplary base.As an illustration, with mode of operation, the SNR of estimated E-DPCCH is adjusted to represent the power of normalized DPCCH, power control can exemplarily be used to use the SNR estimated value of being adjusted.
In another exemplary operation, forbidding power control when each TTI that exemplary base adopts the pilot tone of lifting to send at subscriber equipment (UE) begins.Because exemplary base can be controlled the transmission of UE is controlled by one or more authorization of messages or by DTX, so exemplary base can adopt the pilot tone of lifting to determine operationally when UE sends.As an illustration, when decoding to E-DPCCH, exemplary base can reactivate power control.In exemplary operation, whether E-DPCCH can transmit and send any form and UE from exemplary UE and use pilot tone to promote at E-DPDCH.In exemplary operation, exemplary base can use the result of E-DPCCH to come DPCCH pilot tone SNR estimated value is carried out normalization.
In another exemplary realization, exemplary base is the control of forbidding power under the situation of UE lifting pilot tone.As an illustration, exemplary base monitoring UE promotes the situation of pilot tone and limits the frequency that their occur by transmitting authorization messages to one or more crew-served wireless terminals.In exemplary realization, exemplary base sends absolute grant message to one or more wireless terminals, (for example, UE) uses the pilot tone that promotes at specific TTI to send high data rate to allow one or more wireless terminals.
In another exemplary realization, when UE sent the pilot tone that promotes, UE operationally ignored " minimizing " order from non-service cell.
In exemplary operation, external loop-around can be operated, wherein exemplary base with mode of operation measure receive data from one or more crew-served wireless terminals service quality (QoS) (for example, the Block Error Rate (BLER) or the error rate (BER)), and adjust target SNR as required, for example reach the QoS that wants.In addition, in exemplary realization, the variation that the SNR measurement of pilot tone be can be used to draw radio link quality is to adjust the channel transmitting power that UE sends.
Adopt up link (EUL) characteristic of the enhancing of W-CDMA, data generally send on the channel of E-DPDCH by name.With mode of operation, as an illustration, pilot reference is still carried on DPCCH, and is used for the coherent demodulation of E-DPDCH and other channels.Up link in the wireless system is by crew-served UE resources shared.As an illustration, exemplary base can make total uplink performance maximization by the amount of the employed uplink resource of each independent UE of control.In exemplary realization, dispose the uplink resource control that absolute grant message obtains to expect.
As an illustration, absolute grant message is the message that is sent on down link by base station dispatcher, is used for directly being adjusted at the mandate speed of a UE under its control.As an illustration, absolute grant message self comprises a plurality of together multiplexing fields, and sends on the downlink channel of E-AGCH by name.These fields comprise: the absolute grant value: this field indication UE allows the maximum EUL data used and pilot tone than (E-DPDCH/DPCCH) in transmission next time; Absolute grant scope: the usability of this field indication absolute grant.It can get two different values, and " each HARQ process " or " all HARQ processes ", be used to indicate the HARQ process to activate/cancel can influence a process still is all processes.
In order to overcome produce in the communicating by letter of absolute grant message that exemplary base and crew-served wireless terminal send fuzzy, the power ratio of pilot tone lifting and DPDCH and general DPCCH can be merged into new absolute message metric, wherein, as an illustration, general DPCCH power is the power of the DPCCH that do not promote.
As an illustration, the absolute grant message metric can followingly be calculated:
M=[(E-DPDCH power)+(the DPCCH power of lifting)]/[general DPCCH power]-1
(formula 1)
Perhaps, of equal valuely:
M=β Ed/ β c+ β Bc-1 (in linear domain, calculating) (formula 2)
β wherein EdAnd β cBe respectively the amplitude gain of E-DPDCH and DPCCH, β BcBe the DPCCH of lifting and the amplitude ratio of general DPCCH.
Although these equatioies provide with the form of linearity and amplitude, those skilled in the art will understand easily, and they can adopt any other mode to draw, and for example consider the power ascension of tolerance.For example, can use the form of power, perhaps calculate and in log-domain, to carry out.
In another exemplary realization, wherein channel power rather than pilot tone are promoted, use identical step to calculate new absolute message metric, but be on other channels.In a certain embodiments, wherein promoted the power of E-DPCCH and used as other phase place and amplitude reference, tolerance can be calculated as:
M=[(E-DPDCH power)+(the E-DPCCH power of lifting)-(general E-DPCCH power)]/[general DPCCH power] (formula 3)
Perhaps, of equal valuely:
M=β Ed/ β c+ (β Bec-β Ec)/β c=A Ed+ A B-ec-A Ec=A Ed+ B Ec_boost(in linear domain, calculating)
(formula 4)
β wherein Ed, β cAnd β EcBe respectively the amplitude gain of E-DPDCH, DPCCH and E-DPCCH, β BecBe the amplitude gain of the E-DPCCH that promotes, A EdAnd A EcBe respectively E-DPDCH and DPCCH and when do not promote the amplitude ratio of E-DPCCH and DPCCH, A with amplitude B-ecBe the E-DPCCH of lifting and the amplitude ratio of DPCCH, B Ec_boostFor owing to promote the increase of amplitude of E-DPCCH and the ratio of DPCCH amplitude.
Although these equatioies provide with the form of linearity and amplitude, those skilled in the art will understand easily, and they can adopt any other mode to draw, and for example consider the power ascension of tolerance.For example, can use the form of power, perhaps calculate and in log-domain, to carry out.
In exemplary operation, channel power rather than DPCCH can be provided with respect to the power of DPCCH.As an illustration, DPCCH power increase 1dB will make other channel powers increase 1dB.In exemplary operation, if disposed power ascension, then UE is provided with respect to general DPCCH with the power of mode of operation with channel rather than DPCCH, is the power of DPCCH, if it does not promote as yet.In exemplary operation, can at random promote DPCCH power, and not influence the power of other channels that UE sends.In addition, as an illustration, can adjust, and stipulate with respect to general DPCCH power or with respect to the DPCCH power that promotes to the power of E-DPDCH.In exemplary operation, data can by one or more crew-served wireless terminals on E-DPDCH at a fixed time at interval in (for example, Transmission Time Interval (TTI)) send.
Pilot channel is optimized:
Below with reference to Fig. 1, Fig. 1 shows the multi-address radio communication system 100 according to an embodiment.Base station 100 (BS) comprises a plurality of antenna sets, and an antenna sets comprises 104 and 106, and another group comprises 108 and 110, and one group comprises 112 and 114 again.In Fig. 1, only show two antennas at each antenna sets, yet can use more or less antenna for each group.Subscriber equipment 116 (UE) and antenna 112 and 114 communicate, wherein antenna 112 and 114 by down link 120 with message transmission to UE 116, and by up link 118 from UE 116 reception information.UE 122 communicates with antenna 106 and 108, wherein antenna 106 and 108 by down link 126 with message transmission to UE 122, and by up link 124 from UE 122 reception information.In the FDD system, communication link 118,120,124 and 126 uses different frequencies to communicate.For example, down link 120 uses and the different frequency of up link 118 employed frequencies.
The so-called sector of base station of scope that each antenna sets and/or their designs are used for communicating.In exemplary realization, the UE that each antenna sets is designed to be used in the sector with base station 100 coverages communicates.
Communicating by letter of being undertaken by down link 120 and 126, the down link signal to noise ratio that the transmitting antenna of base station 100 can use the wave beam to form to improve different UEs 116 and 124.
As mentioned above, the base station is the fixed station that communicates with terminal, may also be referred to as access point, Node B or some other terms.Subscriber equipment (UE) may also be referred to as and accesses terminal, Wireless Telecom Equipment, terminal or some other terms.
Fig. 2 has described to have the wireless communication system 200 of a plurality of base stations 210 and a plurality of subscriber equipment (UE) 220, for example can use in conjunction with one or more aspects of system and method described herein.The base station is generally (but not necessarily) and the fixed station that terminal communicates, and may also be referred to as access point, Node B or some other terms.Each base station 210 covers for specific geographic area (being depicted as three geographic area 202a, 202b, 202c) provides communication.Based on context, term " sub-district " refers to base station and/or its overlay area.In order to improve power system capacity, the overlay area of base station is divided into a plurality of than zonule 204a, 204b and 204c (for example according to the overlay area 202a among Fig. 2, being divided into three than the zonule).Each provides service than the zonule by separately base transceiver subsystem (BTS).Based on context, BTS and/or its overlay area can be represented in term " sector ".For sector cell, the BTS of all sectors of this sub-district district that in the base station of this sub-district, normally coexists.Transmission technology described herein can be used to have the system of sector cell, also can be used to have the system of non-sector cell.For convenience of explanation, in the following description, term " base station " generally is used to be expressed as the sector provides the fixed station of service and the fixed station that service is provided for the sub-district.
Subscriber equipment 220 is dispersed in the whole system usually, and each UE can be that fix or mobile.UE is also referred to as mobile radio station, terminal, user's set or some other terms.UE can be wireless device, cell phone, PDA(Personal Digital Assistant), wireless modem card etc.Each terminal 220 can communicate with zero, one or more base station on down link and up link in arbitrary given moment.Down link (or forward link) refers to the communication link from the base station to the terminal, and up link (or reverse link) refers to the communication link from terminal to base station.
For centralized configuration, system controller 230 is coupled to base station 210, and coordinates and control for base station 210 provides.For distributed frame, base station 210 is intercommunication mutually on demand.Channel that can down link is other (for example, control channel) is from a plurality of base station transmits to a UE.As the front about Fig. 1 described, uplink data communication can send to one or more base stations from a UE by the one or more antennas that are positioned at terminal 220 and/or base station 210.
Fig. 3 A shows the exemplary unrestricted high level block diagram according to the system of the various aspects of system and method described herein, and this system promotes pilot channel optimization.System 300A comprises subscriber equipment 302, wirelessly is coupled to base station 304 with communication mode.In other words, base station 304 provides voice and/or data, services by down link 310 to UE 302, and passes through up link 312 from subscriber equipment 302 received communications, and up link 312 is CDMA or single-carrier frequency division multiple access (SC-FDMA) up link for example.Subscriber equipment 302 can move in nature, can transfer to different geographic regions and changes along with UE 302 with the quality of the 304 signal corrections connection that receive from the base station like this.Subscriber equipment 302 comprises pilot tone feedback mechanism 306, power operation of the one or more subscriber equipmenies of commands for controlling that provide in response to the pilot tone controlling mechanism 308 that is positioned at base station 305 is provided for it, controlling mechanism 308 with mode of operation monitored pilots signal, supports channel conditions to estimate and other functions according to scheme described herein.In addition, it should be understood that UE 302 and/or base station 304 can comprise other accessories, these accessories help the information that is associated that is used for adaptively determining the pilot frequency distribution scheme or data are transmitted and finished other functions.
Fig. 3 B shows from a plurality of UE 302 received signals so that make the base station of uplink pilot being monitored according to the various aspects of system and method described herein 304.Base station 304 shows that (1～Z) received signal, Z is an integer to work from a plurality of UE 302.
Following description provides the relevant extra background information of signaling between UMTS situation lower network (for example, base station 304 and/or system controller 230) and wireless terminal (for example, UE 302 or UE 220).According to one side, logic channel is divided into control channel and Traffic Channel.Logical control channel comprises Broadcast Control Channel (BCCH), and it is to be used for down link (DL) channel that system control information is broadcasted.Paging Control Channel (PCCH), it is the downlink channel of transmitting paging information.Multicast control channel (MCCH), it is to be used to the point of one or more multicast service channel MTCH transmitting multimedia broadcasts and multicast service (MBMS) scheduling and control information to the multiple spot downlink channel.Usually, after setting up radio resource control (RRC) connection, this channel is only used by the UE 302 that receives MBMS.Dedicated Control Channel (DCCH) is the two-way channel of point-to-point, and it transmits dedicated control information and is used by the UE 302 with RRC connection.According to another aspect, the logic business channel comprises Dedicated Traffic Channel (DTCH), and it is the two-way channel of point-to-point, by a UE special use, be used for transmitting subscriber information.In addition, MTCH is used for service data transmission for point arrives the multiple spot downlink channel.
According to another aspect, transmission channel is divided into down link and up link.Downlink transmission channel comprises dedicated channel (DCH), broadcast channel (BCH), forward access channel (FACH), high-speed downlink shared channel (HS-DSCH) and paging channel (PCH), and the PHY resource that can be used for other control/Traffic Channel is broadcasted and be mapped to these channels in whole sub-district.Uplink transmission channels comprises dedicated channel (DCH), the dedicated channel (E-DCH) and the Random Access Channel (RACH) that strengthen.The PHY channel comprises one group of DL channel and UL channel.
For the purpose of describing specific non-limiting example of the present invention, the term below having used.Persons of ordinary skill in the art will recognize that under the situation that does not deviate from the spirit aspect disclosed and can carry out various modifications.Therefore, should be appreciated that the explanation of this paper only is to be among many possible embodiment in the claim scope.HS-DSCH is that high-speed downlink shared channel, CPICH are that Common Pilot Channel, time slot are the time interval of 0.666 millisecond (ms).
Fig. 4 has described the exemplary realization that exemplary unrestricted pilot tone is optimized.What go out as shown is such, and wireless communication system 400 comprises subscriber equipment 402 and base station 404, is used for transmitting data and operation signal by communication channel 412 and 410 (for example, pilot channel).In exemplary operation, but the pilot channel conditions of base station pilot controlling mechanism 408 supervisory user equipment 402, so that provide one or more power condition signal (not shown) to subscriber equipment power control mechanism 406, subscriber equipment power control mechanism 406 according to the situation of one or more selections (for example is used for, high data rate) controls the power (for example, carry out pilot tone promote) of the pilot channel of subscriber equipment 402.One or more declarative operations that power control is described according to the application (that is, as described in " pilot tone lifting " part) carry out.
Below with reference to Fig. 5, Fig. 5 shows the communicator 500 that is used for wireless communications environment.Device 500 can be base station 304 or its part, perhaps subscriber equipment 302 or its part (for example being coupled to secure digital (SD) card of processor).Device 500 can comprise memory 502, its storage and relevant various instructions such as signal processing, dispatching communication, request measurement clearance.For example, if install 500 subscriber equipmenies for describing below in conjunction with Figure 11-12 and 15, then memory 502 can comprise and is used for the instruction the signal quality on up link and/or the downlink channel analyzed at certain base station.In addition, memory 502 comprises the instruction that is used for pilot channel optimization.For this reason, according to the various aspects of system and method described herein, memory 502 can comprise be used for from the base station 304 receiving uplink pilot channel data and to its handle, to help carrying out the instruction that pilot channel is optimized according to predetermined scheme.In addition, memory 502 can comprise the instruction of the pilot channel that is used to promote transmission optimization.Above-mentioned illustrative instructions and other suitable instructions can be kept in the memory 502, and use processor 504 execute instruction (according to the quantity of (for example) active flow, frequency starting position etc.).
In addition, as previously described, device 500 can be base station and/or its part, as following in conjunction with as described in Fig. 9-10 and 14.For instance, memory 502 comprises the instruction that is used for the indication that subscriber equipment that receiving system 500 served measuring at other technologies and/or frequency.According to the various aspects of system and method described herein, memory 502 comprises that also being used for definite concurrent line link pilot channel data of serving carries out the instruction of one or more power control operations to promote the predetermined scheme of basis to UE 302.For this reason, memory 502 also comprises the instruction that promotes to receive the pilot channel of optimizing.Processor 504 is used for carrying out the instruction that is kept in the memory 502.Though a plurality of examples are provided, have been appreciated that the instruction of describing with method form (for example, Fig. 6-7) can be included in the memory 502 and by processor 504 to carry out.
With reference to Fig. 6 and 7, show the specific high layer method that is used to optimize the pilot channel power situation according to various exemplary realizations.Though, for making explanation simpler, and these methods are illustrated and are described as a series of actions, but should be understood that and be understood that, these methods are not subjected to the restriction of the order of these actions, because some actions can be with different order appearance and/or concurrent the carrying out of other actions that illustrate and describe with this paper.For instance, it will be appreciated by one of skill in the art that and understand that method can replacedly represent with a series of relevant states or incident, for example with the form of state diagram.In addition, according to one or more embodiment, realize a kind of method and do not require the action shown in all.
Fig. 6 shows a kind of specific high layer method 600, helps to carry out uplink pilot optimization in conjunction with the pilot tone prioritization scheme that the application describes.604, base station 304 or its part are determined the uplink pilot channel information, and wherein this uplink pilot channel information realizes that according to pilot channel power the pilot tone prioritization scheme is necessary for helping in a predefined manner.606, the uplink pilot channel information from one or more UE 302 helps UE 302 to carry out pilot tone optimization according to the predetermined way relevant with pilot channel conditions and/or state accordingly.608, UE 302 from the base station 304 or its part receive pilot tone optimization order, and it is handled according to predetermined mode and corresponding uplink pilot channel information.
Fig. 7 shows a kind of specific high layer method 700, and it helps to carry out uplink pilot optimization in conjunction with the pilot tone prioritization scheme that the application describes.704 after base station 304 or its part receive corresponding uplink pilot channel information, UE 302 or its part are controlled the power of pilot channel 706 in a predefined manner according to the uplink pilot channel information.706, UE 302 or its part send the pilot tone of power control.
Fig. 8 has described the example communication system 800 that realizes according to various aspects, and it comprises a plurality of sub-districts: sub-district I 802, sub-district M 804.Notice that shown in cell border areas 868, adjacent sub-district 802 and 804 has overlapping slightly, thereby the signal that can produce potentially between the signal that the base station sent disturbs in the neighbor cell borderline region; Each borderline region is shared by two adjacent sectors.
The signal that sector boundary regions can produce between the signal that the base station sent in the adjacent sectors potentially disturbs.Sector boundary regions between line 816 expression sector I 810 and the sector II 812; Sector boundary regions between line 818 expression sector II 812 and the sector III 814; Sector boundary regions between line 820 expression sector III 814 and the sector 1 810.Similarly, sub-district M 804 comprises first sector (sector I 822), second sector (sector II 824) and the 3rd sector (sector III 826).Sector boundary regions between line 828 expression sector I 822 and the sector II 824; Sector boundary regions between line 830 expression sector II 824 and the sector III 826; Borderline region between line 832 expression sector III 826 and the sector I 822.Sub-district I 802 comprises a plurality of end nodes (EN) (for example, wireless terminal) in base station (BS) (base station I 806) and each sector 810,812,814.Sector I 810 comprises EN (1) 836 and EN (X) 838, and it is coupled to BS 806 by Radio Link 840,842 respectively; Sector II 812 comprises EN (1 ') 844 and EN (X ') 846, and it is coupled to BS 806 by Radio Link 848,850 respectively; Sector III 814 comprises EN (1 ") 852 and EN (X ") 854, and it is coupled to BS 806 by Radio Link 856,858 respectively.Similarly, sub-district M 804 comprises base station M 808, and a plurality of end nodes (EN) in each sector 822,824,826.Sector I 822 comprises EN (1) 836 ' and EN (X) 838 ', and it is coupled to BS M 808 by Radio Link 840 ', 842 ' respectively; Sector II 824 comprises EN (1 ') 844 ' and EN (X ') 846 ', and it is coupled to BS M 808 by Radio Link 848 ', 850 ' respectively; Sector 3 826 comprises EN (1 ") 852 ' and EN (X ") 854 ', and it is coupled to BS 808 by Radio Link 856 ', 858 ' respectively.
System 800 also comprises network node 860, and it is coupled to BS I 806 and BS M 808 by network link 862,864 respectively.Network node 860 also is coupled to other network nodes (for example other base stations, aaa server node, intermediate node, router etc.) and internet by network link 866.Network link 862,864,866 can be (for example) fiber optic cables.Each end node (for example EN (1) 836) can be a wireless terminal, comprises transmitter and receiver.Wireless terminal (for example EN (1) 836) can move in whole system 800, and communicates by the base station in Radio Link and the current sub-district of living in of EN.Wireless terminal (WT) (for example EN (1) 836) can pass through base station (for example, BS 806) and/or network node 860 communicates with peer node (for example, 800 interior or other WT outward of system 800 of system).WT (for example EN (1) 836) can be a mobile communication equipment, for example mobile phone, have the personal digital assistant of radio modem etc.Relevant base station or its part can be carried out the definite and transmission of pilot tone uplink traffic channel information.In addition, relevant base station or its part can be carried out the uplink pilot demultiplexing according to the various aspects that this paper provides.The various aspects that provide according to this paper, by according to the quantity of active flow in a predefined manner according to SB402 time update pilot channel bandwidth and frequency location, wireless terminal or its part can use the corresponding uplink pilot channel information that is provided to promote to carry out multiplexing to pilot tone adaptively.In addition, wireless terminal or its part can send to relevant base station with multiplexing pilot tone.
But Fig. 9 shows the system that combining adaptive uplink pilot multiplexing scheme is used at subscriber equipment.System 900 comprises the base station 902 with receiver 910, and wherein receiver comes received signal from one or more subscriber equipmenies 904 by one or more reception antennas 906, and sends to one or more subscriber equipmenies 904 by a plurality of transmitting antennas 908.In an example, reception antenna 906 and transmitting antenna 908 can use independent one group of antenna to realize.Receiver 910 can be associated with the demodulator 912 that the information that receives is carried out demodulation from reception antenna 906 reception information and with mode of operation.Such as the skilled person will appreciate, receiver 910 can be (for example): the Rake receiver (for example, use a plurality of baseband correlators to handle the technology of multi-path signal component individually ...), based on the receiver of MMSE, perhaps other are suitable is used for receiver that the subscriber equipment that is assigned to is separated.For example, can use a plurality of receivers (for example, one of each reception antenna), these receivers intercom mutually provides the estimated value of improved user data.Demodulation symbol is handled by processor 914, and it is similar to the processor of describing below in conjunction with Figure 11 1106, and is coupled to memory 916, the information that these memory 916 storages are relevant with user equipment allocation, relevant look-up table or the like.The receiver output of each antenna can be by receiver 910 and/or processor 914 Combined Treatment.Modulator 918 can carry out multiplexing to signal, to be transferred to subscriber equipment 904 by transmitter 920 by transmitting antenna 908.
Figure 10 shows the exemplary base 1000 of the various aspects according to the present invention.Base station 1000 or its part realize the various aspects of system and method described herein.For example, base station 1000 can be determined at the determining of the pilot tone uplink traffic channel information of subsequent transmission, and is multiplexing to promote carrying out adaptive pilot in the subscriber equipment that is associated.Base station 1000 can be used as any one in the base station 806,808 of system 800 among Fig. 8.Base station 1000 comprises receiver 1002, transmitter 1004, processor 1006 (for example CPU), input/output interface 1008 and memory 1010, they are coupled together by bus 1009, by these bus 1009 each unit 1002,1004,1006,1008 and 1010 exchange data and information.
The sectorized antennas 1003 that is coupled to receiver 1002 is used for transmitting by the wireless terminal from each sector in the sub-district of base station and receives data and other signals (for example channel reporting), and comprises one or more reception antennas.The sectorized antennas 1005 that is coupled to transmitter 1004 is used for data and other signals (for example, control signal, pilot signal, beacon signal etc.) are sent to wireless terminal 1200 (seeing Figure 12) in each sector of sub-district of base station.According to various aspects, a plurality of receivers 1002 and a plurality of transmitter 1004 are used in base station 1000, for example, and independent transmitter 1004 of the independent receiver 1002 in each sector and each sector.As previously described, be appreciated that and carry out various modifications.For example, in the SU-MIMO system, in base station and subscriber equipment, can use a plurality of transmitting antennas and reception antenna, receiver etc.Similarly, for the SDMA system, a plurality of users can send and received signal from the base station with a plurality of transmitting antennas and reception antenna, receiver etc.Processor 1006 can be (for example) general CPU (CPU).The operation of control base station 1000 under the indication of one or more routines 1018 of processor 1006 in being stored in memory 1010, and implementation method.I/O interface 1008 is provided to the connection (BS 1000 being coupled to other base stations, couple in router, aaa server node etc.) of other network nodes and being connected to other networks and internet.Memory 1010 comprises routine 1018 and data/information 1020.
Data/information 1020 comprises data 1036, voiced band subset allocation sequence information 1038 (it comprises downlink strip symbol time information 1040, down link voiced band information 1042) and wireless terminal (WT) data/information 1044 (it comprises many group WT information: WT 1 information 1046 and WT N information 1060).Every group of WT information (for example, WT 1 information 1046) comprises data 1048, Termination ID 1050, sector ID 1052, uplink traffic channel information 1054, downlink channel information 1056 and pattern information 1058.
Routine 1018 comprises Communications routines 1022 and base stations control routine 1024.Base stations control routine 1024 comprises Scheduler module 1026 and signaling routine 1028, and signaling routine 1028 comprises the voiced band subset allocation routine 1030 that is used for banded symbol period, other down link voiced bands distribution frequency hopping routine 1032 and beacon routine 1034 that are used to remain symbol period (for example non-banded symbol period).
Data 1036 comprise data to be sent and the data that receive from WT, data to be sent will send to the encoder 1014 of transmitter 1004, encoded in the past being transferred to WT, after receiving, handled by the decoder 1012 of receiver 1002 from the data that WT receives.Downlink strip symbol time information 1040 comprises frame synchronization structure information (for example overtime crack, beacon slot and super time slot (ultraslot) structural information), and specify whether given symbol period is the information of banded symbol period, and if words, the index that also comprises banded symbol period, and whether banded symbol is the reduction point that the voiced band subset allocation sequence that use the base station is intercepted.Down link voiced band information 1042 included information have: distribute to the carrier frequency of base station 1000, quantity and frequency and the specific value of set and other sub-districts and sector that will distribute to the voiced band subclass of banded symbol period, for example slope, slope index and the sectors type of voiced band.
Data 1048 comprise: the data that WT1 1200 receives from peer node, WT 1 1200 want to send to the data and the downlink channel quality report feedback information of peer node.Termination ID 1050 is ID of the sign WT 1 1200 of base station 1000 distribution.Sector ID 1052 comprises the information of the sector that identification WT1 1200 works therein.Sector ID 1052 can be used to (for example) and determines sectors type.Uplink traffic channel information 1054 comprises that identification distributed to the information of the channel segment that WT1 1200 uses by scheduler 1026, for example, at the uplink traffic channel segments of data, at the dedicated uplink control channel of quantity of request, power control, sequencing control, active flow etc.The various aspects according to the present invention, each uplink channel of distributing to WT1 1200 comprises one or more logic voiced bands, each logic voiced band is after the up link frequency hop sequences.Downlink channel information 1056 comprises that identification distributes to the information that WT1 1200 carries the channel segment of data and/or information by scheduler 1026, for example, and at the downlink traffic channel segments of user data.Each downlink channel of distributing to WT1 1200 comprises one or more logic voiced bands, its each after the down link frequency hop sequences.Pattern information 1058 comprises the information of identification WT1 1200 modes of operation, for example sleeps, keeps, opens.
Communications routines 1022 control base stations 1000 are carried out various traffic operations and are realized various communication protocols.Base stations control routine 1024 is used for controlling base station 1000 and carries out basic base station functionality task, for example signal generates and receives, scheduling, and realize the step of the method for some aspects, be included in and use the voiced band subset allocation sequence that signal is sent to wireless terminal in the banded symbol period.
The operation that 1028 pairs of signaling routines have the receiver 1002 of decoder 1012 and have a transmitter 1004 of encoder 1014 is controlled.Signaling routine 1028 is responsible for the generation that control sends data 1036 and control information.Voiced band subset allocation routine 1030 is used the method for an aspect and is used data/information 1020 to make up the voiced band subclass that is used for banded symbol period, and wherein information 1020 comprises downlink strip symbol time information 1040 and sector ID 1052.Down link voiced band subset allocation sequence is different for each sectors type in the sub-district, is different for neighbor cell.WT 1200 receives signal in the banded symbol period according to down link voiced band subset allocation sequence; Base station 1000 uses identical down link voiced band subset allocation sequence to generate the signal of transmission.Other down link voiced bands distribute frequency hopping routine 1032 to use the information that comprises down link voiced band information 1042 and downlink channel information 1056, make up down link voiced band frequency hop sequences at symbol period rather than banded symbol period.Down link data voiced band frequency hop sequences carries out between the sector of sub-district synchronously.The transmission of beacon routine 1034 mouse beacon signals, for example, concentrate on the signal of the relative higher-wattage signal of one or more voiced bands, it can be used for synchronous purpose, for example, come the frame timing architecture and the further voiced band subset allocation sequence of down link signal are carried out synchronously at super boundary of time slot.
Figure 11 shows the system 1100 that can use in conjunction with the pilot tone prioritization scheme that the application describes.System 1100 comprises receiver 1102, and it is from for example one or more reception antenna received signals, and the typical action of execution to the received signal (for example, filtering, amplification, down-conversion ...) and the signal through regulating carried out digitlization, to obtain sampling.Pilot tone controlling mechanism 1104 can offer the frequency pilot sign that receives processor 1106 and carry out channel estimating.
Processor 1106 can be to be exclusively used in the information that analysis receiver parts 1102 receive and/or to generate the information processing device that is sent by transmitter 1114.Processor 1106 can be control system 1100 one or more parts processor and/or to the processor of one or more assemblies of analyzing, generate the information that sends for transmitter 1114 and control system 1100 by receiver 1102 received information.System 1100 can comprise optimization component 1108, optimization component 1108 carry out performance measurement at one or more technology and/or frequency before, measure during in and/or measure later performance and be optimized subscriber equipment.Optimization component 1108 can be incorporated processor 1106 into.Be appreciated that optimization component 1108 can comprise the optimization code, it carries out analysis based on effectiveness in conjunction with the request measurement clearance.In conjunction with the Code And Decode scheme, optimizing code can be in conjunction with carrying out reasoning and/or carrying out probabilisticly determining and/or determining to use method based on artificial intelligence based on statistics.
System's (subscriber equipment) 1100 also can comprise memory 1110, it is operatively coupled to processor 1106 and stored information, measurement clearance information for example, schedule information etc., wherein, this information can be in conjunction with distributing global measurement clearance and measuring during measurement clearance and use.Memory 1110 can also be stored and generate the agreement that look-up table etc. is associated, thereby system 1100 can use the agreement of storage and/or algorithm to increase power system capacity.Should be appreciated that data storage part as herein described (for example memory) can be volatile memory or nonvolatile memory, perhaps can comprise volatibility and nonvolatile memory the two.By exemplary and nonrestrictive mode, nonvolatile memory can comprise read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically-erasable ROM (EEROM) (EEPROM) or flash memory.Volatile memory can comprise random-access memory (ram), and it serves as external cache.By exemplary and nonrestrictive mode, RAM is available in a variety of forms, such as synchronous random access memory (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDR SDRAM), enhancing SDRAM (ESDRAM), synchronization links DRAM (SLDRAM) and direct memory bus (Rambus) RAM (DRRAM).Memory 110 includes, but not limited to the memory of these and other suitable types.The transmitter 1114 that processor 1106 is connected to symbol pilot tone feedback mechanism 1112 and sends modulation signal.
Figure 12 shows example wireless terminal (for example, end points, mobile device etc.) 1200, and it can be used as any one wireless terminal (example is the EN (1) 836 of system 800 as shown in Figure 8).Wireless terminal 1200 comprises receiver 1202, transmitter 1204, processor 1206 and memory 1208, they are coupled together by bus 1210, by each unit 1202,1204,1206,1208 exchange data and information of this bus, wherein receiver 1202 comprises decoder 1212, and transmitter 1204 comprises encoder 1214.Be used for being coupled to receiver 1202 from the antenna 1203 of base station received signal.For example be used for being coupled to transmitter 1204 to the antenna 1205 of base station transmit signals.As previously described, be appreciated that and carry out various modifications.For example, in the SU-MIMO system, in base station and subscriber equipment, can use a plurality of transmitting antennas and reception antenna, receiver etc.Similarly, for the SDMA system, a plurality of users can send and received signal from the base station with a plurality of transmitting antennas and reception antenna, receiver etc.
Processor 1206, for example, CPU controls the operation and the implementation method of wireless terminal 1200 by the data/information 1222 in executive routine 1220 and the use memory 1208.
Under the situation of exemplary ofdma communication system, data/information 1222 comprises user data 1234, user profile 1236 and voiced band subset allocation sequence information 1250.User data 1234 can comprise the data that are used for peer node and 1000 data that receive from the base station, the data that are used for peer node can be routed to encoder 1214, so that encoded before sending to base station 1000 by transmitter 1204, the data that receive from base station 1000 are handled by the decoder the receiver 1,202 1212.User profile 1236 comprises uplink traffic channel information 1238, downlink channel information 1240, Termination ID information 1242, base station IDs information 1244, sector ID information 1246 and pattern information 1248.Uplink traffic channel information 1238 comprises the information of discerning uplink channel segments, and it is distributed by base station 1000, is being used when base station 1000 sends by wireless terminal 1200.Uplink channel can comprise uplink traffic channel, the dedicated uplink control channel, for example, request channel, power control channel and timing controlled channel.Under the situation of exemplary ofdma communication system, each uplink channel comprises one or more logic voiced bands, and each logic voiced band is after up link voiced band frequency hop sequences.In certain embodiments, the up link frequency hop sequences is different between each sectors type of sub-district, is different between neighbor cell.
Downlink channel information 1240 comprises the information of discerning downlink channel segment, and it gives WT 1200 by base station assigns, uses when WT 1200 sends data/information in the base station.Downlink channel can comprise downlink traffic channel and allocated channel, and each downlink channel comprises one or more logic voiced bands, and each logic voiced band is after the down link frequency hop sequences, and it carries out between each sector of sub-district synchronously.
User profile 1236 also comprises Termination ID information 1242 (sign that it distributes for base station 1000), base station IDs information 1244 (its sign WT has set up the specific base stations 1000 of communication) and sector ID information 1246 (sectors of its sign WT 1200 current sub-districts of living in).In exemplary ofdma communication system, base station IDs 1244 provides cell slope value, and sector ID information 1246 provides sector index type; Cell slope value and sector index type can be used to draw the voiced band frequency hop sequences.The pattern information 1248 expression WT 1200 that also comprise in the user profile 1236 are in sleep pattern, maintenance pattern or open mode.
In some OFDMA embodiment, voiced band subset allocation sequence information 1250 comprises downlink strip symbol time information 1252 and down link voiced band information 1254.Down link voiced band information 1254 comprises following information: distribute to the carrier frequency of base station 1000, the quantity and the frequency of voiced band, and one group of voiced band subclass will distributing to banded symbol period, and other are for the specific numerical value in sub-district and sector, for example slope, slope index and sectors type.
Routine 1220 comprises Communications routines 1224 and wireless terminal control routine 1226.The various communication protocols that Communications routines 1224 control WT 1200 use.Basic wireless terminal 1200 functions of wireless terminal control routine 1226 controls comprise receiver control 1202 and transmitter 1204.Wireless terminal control routine 1226 comprises signaling routine 1228.In some OFDMA embodiment, voiced band subset allocation routine 1230 uses user data/information 1222 to comprise downlink channel information 1240, base station IDs information 1244, for example, slope index and sectors type, and down link voiced band information 1254, so that generate down link voiced band subset allocation sequence and handle the data that receive that base station 1000 sends according to some embodiment.
The technology of some exemplary realizations can realize with the combination of software, hardware and/or software and hardware.Some embodiment are at equipment, and mobile node for example is such as portable terminal, base station or realize the communication system of some exemplary realizations.According to some exemplary realizations, the method for mobile node, base station and/or communication system (for example, main frame) is for example controlled and/or operated to these exemplary realizations also at method.According to some exemplary realizations, these exemplary realizations are also at machine readable media (for example, ROM, RAM, CD, hard disk etc.), and it comprises and is used to control the machine readable instructions that machine is realized one or more steps.
In a plurality of exemplary realizations, node as herein described uses one or more modules to realize, with the one or more methods corresponding step (for example, signal processing, message generate and/or forwarding step) of execution with some exemplary realizations.Therefore, in some exemplary realizations, a plurality of features of some exemplary realizations use module to realize.These modules can use the combination of software, hardware or software and hardware to realize.Above-described many methods or method step can use machine-executable instruction (such as, be included in such as the software in the machine readable media of storage component part, for example RAM, floppy disk etc.) come for example in one or more nodes, to control machine (for example, having or do not have the all-purpose computer of other hardware) to realize all or part of in the said method.Therefore, except other things, some embodiment are at the machine readable media that comprises machine-executable instruction, and wherein machine-executable instruction makes machine (for example, processor and related hardware) carry out one or more steps of said method.
To those skilled in the art, in the description of reading some exemplary realizations of front, many other variations are conspicuous for the method and apparatus of more previously described exemplary realizations.These variations should considered to be in the scope of corresponding exemplary realization.The method and apparatus of some exemplary realizations can adopt CDMA, orthogonal frequency divide multiplexing (OFDM), SC-FDMA and/or multiple other types can be used between access node and mobile node, provide the communication technology of wireless communication link to use, and in a plurality of embodiment, adopt these technology to use.In some exemplary realizations, access node is embodied as the base station, and it uses OFDM and/or CDMA and mobile node to set up communication link.In a plurality of embodiment, mobile node is embodied as notebook, PDA(Personal Digital Assistant) or other comprise receiver/transmitter circuitry and logic and/or routine, are used to realize the portable set of the method for some embodiment.
Will be understood that according to one or more aspects as herein described, can carry out and the relevant inference of definite uplink pilot channel information.The term that uses among the application " deduction " or " inference " are commonly referred to as the one group of observed result that obtains according to by incident and/or data, the process about the state of the reasoning process of the state of system, environment and/or user, mobile device, movable uplink flow and base station or inference system, environment and/or user, mobile device, movable uplink flow and base station of carrying out.For example, inference can be used for discerning specific interior perhaps action, or the probability distribution of the state of generation.This inference is probabilistic, that is to say, according to data of being considered and incident, relevant probability distribution over states is calculated.Inference also refers to be used for constitute according to event set and/or data set the technology of advanced event.Whether the event set that this inference makes according to the observation and/or event data, the incident of storage be relevant on the closely close time, and whether incident and data construct new incident or action from one or several incidents and data source.
According to example, the one or more methods that provide previously can comprise carries out and the relevant inference of definite active uplink stream, to help the self adaptation uplink pilot multiplexing.According to another example, can carry out the relevant inference of probability that can distinguish based on the uplink pilot collection with the signal that will want and one or more undesired signal.Will be understood that the example of front is exemplary in nature, rather than will limit the quantity that to carry out inference and the mode of carrying out inference in conjunction with each embodiment and/or the method for the application's description.
Figure 13 shows the block diagram of exemplary unrestricted communication system, and it comprises the pilot tone optimization that many aspects are carried out according to the present invention, and wherein transmitter system 1310 (for example, the base station, base station etc.) and receiver system 1350 (UE, subscriber equipment, mobile node etc.) in mimo system 1300.At transmitter system 1310, the business datum of a plurality of data flow offers emission (TX) data processor 1314 from data source 1312.In exemplary realization, each data flow sends by corresponding transmitting antenna.TX data processor 1314 is based upon the selected specific coding scheme of this data flow and comes the business datum of each data flow is formatd, encodes and interweaves, so that coded data to be provided.According to each exemplary realization of system and method described herein, transmitter system 1310 promotes the pilot tone prioritization scheme by the uplink pilot channel information is sent to receiver system 1350.
The coded data of each data flow can use OFDM technology and pilot data to carry out multiplexing.Generally speaking, pilot data is known data pattern, and it is handled in a known manner and can be used for estimating channel response at the receiver system place.The data rate of each data flow, coding and modulation can be determined by the instruction that processor 1330 is carried out.
Then, the modulation symbol with all data flow offers TX MIMO processor 1320, the TXMIMO processor 1320 further modulation symbols (for example, at OFDM) of handling.TXMIMO processor 1320 is with N then TIndividual stream of modulation symbols offers N TIndividual transmitter (TMTR) 1322a～1322t.In certain embodiments, TX processor 1320 forms wave beam on the antenna that symbol and transmission symbol passed through that weight is applied to data flow.
Each transmitter 1322 receives also handles corresponding symbols streams, so that one or more analog signals to be provided, and further analog signal is regulated (for example, amplification, filtering, up-conversion), is applicable to the modulation signal that transmits to provide on mimo channel.Then, from the N of transmitter 1322a～1322t TIndividual modulation signal is respectively from N TIndividual antenna 1324a～1324t transmission.
At receiver system 1350, the modulation signal that is transmitted is by N RIndividual antenna 1352a～1352r receives, and the signal that receives from each antenna 1352 offers respective receiver (RCVR) 1354a～1354r.1354 pairs of signals that receive accordingly of each receiver are regulated (for example, filtering, amplification and down-conversion), the signal of regulating is carried out digitlization so that sampling to be provided, and further sampling is handled, so that corresponding " reception " symbols streams to be provided.
RX data processor 1360 based on specific receiver treatment technology from N RIndividual receiver 1354 receives and handles N RThe individual symbols streams that receives is to provide N TIndividual " detected " symbols streams.Then, RX data processor 1360 carries out demodulation, deinterleaving and decoding to each detected symbols streams, with the business datum of restore data stream.The TX MIMO processor 1320 of the processing of RX data processor 1360 and transmitter system 1310 and the processing complementation of TX data processor 1314.
Processor 1370 periodically determines to use which pre-coding matrix.Processor 1370 is made the reverse link message that comprises matrix index part and order value part.Reverse link message can comprise various types of relevant communication links and/or the information of the data flow that receives.According to various aspects of the present invention, in response to receive corresponding uplink pilot channel information from transmitter system 1310, receiver system 1350 is optimized pilot channel according to predetermined mode.Reverse link message can be handled (this TX data processor 1338 also receives a plurality of data flow from data source 1336 business datum) subsequently by TX data processor 1338, modulate by modulator 1380,1354a～1354r regulates by transmitter, and transmission postbacks transmitter system 1310.
At transmitter system 1310, modulation signal from receiver system 1350 is received by antenna 1324, is regulated by receiver 1322, by demodulator 1340 demodulation, and handle by RX data processor 1342, to extract the reverse link message of receiver system 1350 transmission.Processor 1330 determines that subsequently which pre-coding matrix is used for the weight of determining that wave beam forms, handles the message of extracting then.According to various aspects of the present invention, in response to receiving multiplexing pilot tone from receiver system 1350, transmitter system 1310 carries out demultiplexing according to predetermined mode and corresponding pilot frequency channel information to multiplexing pilot channel.
With reference to Figure 14, device 1400 has been described, it helps to realize carrying out pilot tone optimization basis according to the multiple non-restrictive illustrative of system and method described herein.For instance, device 1400 can be present in the mobile device at least in part.Be appreciated that device 1400 represents to comprise functional module, it can be the functional module of expression by processor, software or its combination (for example, the firmware) function that realizes.Device 1400 comprises the logical combination 1402 of the electronic unit that can work together.For example, logical combination 1402 can comprise the electronic unit 1404 that is used for determining and sending in the base station uplink pilot channel information.The unrestricted purpose for explanation, the uplink pilot channel information can comprise that the one or more quantity of multiplexing active flow, the quantity and/or pilot tones of available resource block treated begin frequency location and combination in any thereof etc.Further, describe in detail in conjunction with Fig. 4,6-7 as the front, logical combination 1402 can comprise the electronic unit 1406 that is used to receive the signal of representing pilot tone control.Logical combination 1402 also can comprise the electronic unit 1408 that is used for handling according to the predetermined function of uplink pilot channel information the pilot tone control signal.In addition, device 1400 can comprise memory 1410, and its preservation is used to carry out the instruction of the function that is associated with electronic unit 1404,1406 and 1408.Though the electronic unit that illustrates is positioned at the outside of memory 1410, be appreciated that one or more electronic units 1404,1406 and 1408 can be positioned at memory 1410.
With reference to Figure 15, device 1500 has been described, its a plurality of non-restrictive illustrative according to system and method described herein realize supporting to carry out pilot tone optimization.For instance, device 1500 can be present in the mobile device at least in part.Be appreciated that device 1500 represents to comprise functional module, it can be the functional module of expression by processor, software or its combination (for example, the firmware) function that realizes.Device 1500 comprises the logical combination 1502 of the electronic unit that can work together.For example, logical combination 1502 can comprise the electronic unit 1504 that is used to receive and handle the uplink pilot channel information.For example, electronic unit 1504 can comprise and is used for reception of describing in conjunction with Figure 14 the front and the electronic unit of handling the uplink pilot channel information.Further, logical combination 1502 can comprise the electronic unit 1506 that is used for handling according to the uplink pilot channel information pilot tone control data, has done to describe in further detail in conjunction with Fig. 4,6-7 as the front.Further, logical combination 1502 can comprise the electronic unit 1508 that is used to send the pilot tone feedback data.In addition, device 1500 can comprise memory 1510, and its preservation is used to carry out the instruction of the function that is associated with electronic unit 1504,1506 and 1508.Though the electronic unit that illustrates is positioned at the outside of memory 1510, be appreciated that one or more electronic units 1504,1506 and 1508 can be positioned at memory 1510.
Need should be appreciated that exemplary realization described herein can realize with hardware, software, firmware, middleware, microcode or their any combination.Realize that for hardware the processing unit in the subscriber equipment or the network equipment can be implemented in one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), digital signal processor spare (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, is used for carrying out other electronic unit or above-mentioned every combination of function described herein.
When system as herein described and/or method were realized by software, firmware, middleware, microcode, program code or code segment, they can be stored in the machine readable media, in memory unit.Code segment can be represented the combination in any of process, function, subprogram, program, routine, subroutine, module, software kit, class or instruction, data structure or program statement.Code segment can come to be coupled with another section code segment or hardware circuit by transmitting and/or reception information, data, real ginseng, shape ginseng or memory contents.Information, real ginseng, shape ginseng, data or the like can use any suitable method to comprise that Memory Sharing, message transmission, token transmission, Network Transmission etc. transmit, transmit or transmit.
Realize that for software the techniques described herein can realize with the module (for example, process, function etc.) of carrying out function described herein.These software codes can be stored in the memory cell, and are carried out by processor.Memory cell can be implemented in the processor, also can be implemented in outside the processor, and under latter event, it is coupled to processor by various means with communication mode.
Description above comprises that a plurality of of disclosed theme give an example.Certainly, all possible combination of describing parts or method in order to describe this theme is impossible, but those of ordinary skills should be realized that these embodiment can do further combinations and permutations.Therefore, the embodiment that describes in this theme is intended to contain spirit and all the interior changes, modifications and variations of protection range that fall into appended claims.In addition, with regard to the term that uses in specification or claims " comprised ", the mode that contains of this term was similar to term and " comprises ", just " comprised " in the claims as term and explaining as link word.

Claims (44)

1, a kind of method that in wireless communication system, is used for pilot tone optimization, described method comprises:
In the base station, determine the uplink pilot channel information;
Send described uplink pilot channel information to one or more wireless terminals, so that promote pilot tone optimization by the pilot channel control operation that participates in one or more selections; And
Operate according to selected one or more pilot channels and to monitor and to instruct the power operation of on one or more crew-served wireless terminals, carrying out,
Wherein, the described power operation of carrying out on described one or more wireless terminals is relevant with the data rate and/or the pilot channel state of described one or more wireless terminals.
2, method according to claim 1 also comprises:
Independently increase the power level of one or more control channels.
3, method according to claim 1 also comprises:
According to the data rate of data channel, independently the power level of one or more control channels is increased to the power level of the selection that is higher than threshold power level.
4, method according to claim 3 also comprises:
The power level of described one or more control channels is reduced to described threshold level.
5, method according to claim 1 also comprises:
The power level of the control channel of one or more enhancings is increased to the power level of the selection that is higher than threshold power level.
6, method according to claim 5 also comprises:
Control channel to described one or more enhancings is decoded, and modulation signal overturn is transformed into pilot reference with the control channel with described one or more enhancings.
7, method according to claim 6 also comprises:
Described pilot reference and one or more control channel are merged,, be used for other one or more control channels are carried out demodulation so that phase place and/or amplitude reference to be provided.
8, be used for the method that pilot tone is optimized in a kind of wireless communication system, described method comprises:
From base station receiving uplink pilot frequency channel information;
Handle the pilot frequency channel information that receives in a predetermined manner according to described uplink pilot channel information, to control the one or more power operations on one or more crew-served wireless terminals; And
The pilot tone feedback data is sent to described base station, and described pilot tone feedback data is represented the pilot channel mode of operation.
9, method according to claim 8 wherein, is carried out according to the transmitted data rates between described one or more crew-served wireless terminals and the described base station in the power control operation of carrying out on described one or more wireless terminals.
10, method according to claim 9 also comprises:
Be higher than the power that increases described pilot channel when threshold data rate is transmitted.
11, method according to claim 10 also comprises:
Be lower than the power that reduces described pilot channel when described threshold rates is transmitted.
12, method according to claim 10 also comprises:
Ignore pilot tone order from non-service cell.
13, a kind of communicator comprises:
Memory is used for store instruction, and described instruction is used for:
Determine and transmission uplink pilot channel information,
The pilot signal of send optimizing to be carrying out the power control operation, and
Monitor the pilot signal of the optimization that is sent in a predetermined manner according to described uplink pilot channel information; And
Processor is used to carry out the instruction in the described memory.
14, communicator according to claim 13, wherein, described device is increased to the power level of the control channel of one or more enhancings the power level of the selection that is higher than threshold power level.
15, communicator according to claim 14, wherein, described device is decoded to the control channel of described one or more enhancings, and modulation signal overturn is transformed into pilot reference with the control channel with described one or more enhancings.
16, communicator according to claim 15, wherein, described device merges described pilot reference and one or more control channel, so that phase place and/or amplitude reference to be provided, is used for other one or more control channels are carried out demodulation.
17, a kind of communicator comprises:
Memory is used for store instruction, and described instruction is used for:
Receive and handle the uplink pilot channel information,
Carry out one or more power control operations according to received pilot frequency channel information,
Send pilot tone operation and status data; And
Processor is used to carry out the instruction in the described memory.
18, communicator according to claim 17, wherein, described one or more power control operations are carried out according to described transmitted data rates.
19, communicator according to claim 17, wherein, described device is being higher than the power that increases described pilot channel when threshold data rate is transmitted.
20, communicator according to claim 17, wherein, described device is being lower than the power that reduces described pilot channel when described threshold rates is transmitted.
21, a kind of communicator comprises:
Be used for determining the module of uplink pilot channel information in the base station;
Be used to send the pilot signal of optimization to carry out the module of power control operation; And
Be used for monitoring in a predetermined manner the module of the pilot signal of the optimization that is sent according to described uplink pilot channel information.
22, communicator according to claim 21, wherein, described device is increased to the power level of the control channel of one or more enhancings the power level of the selection that is higher than threshold power level.
23, communicator according to claim 21, wherein, described device is decoded to the control channel of described one or more enhancings, and modulation signal overturn is transformed into pilot reference with the control channel with described one or more enhancings.
24, communicator according to claim 21, wherein, described device merges described pilot reference and one or more control channel, so that phase place and/or amplitude reference to be provided, is used for other one or more control channels are carried out demodulation.
25, a kind of communicator comprises:
Be used to receive and handle the module of uplink pilot channel information;
Be used for carrying out the module of one or more power control operations according to received pilot frequency channel information; And
Be used to send the module of pilot tone operation and status data.
26, communicator according to claim 25, wherein, described one or more power control operations are carried out according to described transmitted data rates.
27, communicator according to claim 25, wherein, described device is being higher than the power that increases described pilot channel when threshold data rate is transmitted.
28, communicator according to claim 25, wherein, described device is being lower than the power that reduces described pilot channel when described threshold rates is transmitted.
29, a kind of machine readable media, it stores computer executable instructions, is used for:
Determine and transmission uplink pilot channel information,
The pilot signal of send optimizing to be carrying out the power control operation, and
Monitor the pilot signal of the optimization that is sent in a predetermined manner according to described uplink pilot channel information.
30, machine readable media according to claim 29 also comprises being used for the computer executable instructions of storage:
The power level of the control channel of one or more enhancings is increased to the power level of the selection that is higher than threshold power level.
31, machine readable media according to claim 29 also comprises being used for the computer executable instructions of storage:
Control channel to described one or more enhancings is decoded, and modulation signal overturn is transformed into pilot reference with the control channel with described one or more enhancings.
32, machine readable media according to claim 30 also comprises being used for the computer executable instructions of storage:
Described pilot reference and one or more control channel are merged,, be used for other one or more control channels are carried out demodulation so that phase place and/or amplitude reference to be provided.
33, a kind of machine readable media, it stores computer executable instructions, is used for:
Receive and handle the uplink pilot channel information,
Carry out one or more power control operations according to received pilot frequency channel information, and
Send pilot tone operation and status data.
34, machine readable media according to claim 33 also comprises being used for the computer executable instructions of storage:
Be higher than the power that increases described pilot channel when threshold data rate is transmitted.
35, machine readable media according to claim 33 also comprises being used for the computer executable instructions of storage:
Be lower than the power that reduces described pilot channel when described threshold rates is transmitted.
36, machine readable media according to claim 33 also comprises being used for the computer executable instructions of storage:
Ignore pilot tone order from non-service cell.
37, in wireless communication system, a kind of device comprises:
Processor is used for:
In the base station, determine the uplink pilot channel information;
Send described uplink pilot channel information to one or more crew-served wireless terminals, so that promote pilot tone optimization by the pilot channel control operation that participates in one or more selections; And
Operate according to selected one or more pilot channels and to monitor and to instruct the power operation of on described one or more crew-served wireless terminals, carrying out,
Wherein, the described power operation of carrying out on described one or more crew-served wireless terminals is relevant with the data rate and/or the pilot channel state of described one or more crew-served wireless terminals.
38, according to the described communicator of claim 37, wherein, described processor provides signal, so that the power level of the control channel of one or more enhancings is increased to the power level of the selection that is higher than threshold power level.
39, according to the described communicator of claim 37, wherein, described processor provides signal, so that the control channel of described one or more enhancings is decoded, and modulation signal overturn is transformed into pilot reference with the control channel with described one or more enhancings.
40, according to the described communicator of claim 38, wherein, described processor provides signal, so that described pilot reference and one or more control channel are merged so that phase place and/or amplitude reference to be provided, is used for other one or more control channels are carried out demodulation.
41, in wireless communication system, a kind of device comprises:
Processor is used for:
From base station receiving uplink pilot frequency channel information;
Handle the pilot frequency channel information that receives in a predetermined manner according to described uplink pilot channel information, so that control the one or more power operations on one or more crew-served wireless terminals; And
The pilot tone feedback data is sent to described base station, and described pilot tone feedback data is represented the pilot channel mode of operation.
42, according to the described communicator of claim 41, wherein, described processor provides signal, is used for the power that increases described pilot channel when threshold data rate is transmitted being higher than.
43, according to the described communicator of claim 41, wherein, described processor provides signal, is used for the power that reduces described pilot channel when described threshold rates is transmitted being lower than.
44, according to the described communicator of claim 41, wherein, described processor provides signal, is used to ignore the pilot tone order from non-service cell.
CNA2008800028194A 2007-01-22 2008-01-22 Adopt the techniques for high data rates of improved channel reference Pending CN101595650A (en)

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Application publication date: 20091202