CN101199176B - Method for wireless communication - Google Patents

Abstract

Various embodiments are disclosed relating to techniques to transmit data rate control signals for multicarrier wireless systems. According to an example embodiment, a wireless apparatus (200 or 500) may be adapted to transmit at least a first data rate control (DRC) value via an In-phase (I) channel and at least a second DRC value via a Quadrature-phase (Q) channel. The first DRC value may be associated with a first forward link carrier and the second DRC value may be associated with a second forward link carrier. In this manner, DRC values may be transmitted over both the I and Q channels, for example.

Description

The method that is used for radio communication

The cross reference of related application

This application requirement is in the 60/700th of submission on July 18th, 2005, the priority of No. 095 U.S. Provisional Patent Application, its content is so far merged by reference, and require to be called " Techniques to Transmit Date Rate Control Signals ForMulti-Carrier Wireless Systems " the 11/478th in the name that on June 28th, 2006 submitted to, the priority of No. 555 U.S. Provisional Patent Application, its content are also so far merged by reference.

Background technology

Data rate control or rate adaptation are a kind ofly to adopt the feature of finding in multi-form different radio technology or the network at some, and usually relate to based on certain measurement and/or based on control signal and change or upgrade the data rate that transmits.For example, cdma2000 High Rate Packet Data system is a kind of wireless technology type and is commonly called 1xDO (" data-optimized ") system.Described 1xDO system is a kind of single-carrier system, and wherein access terminal (AT) or portable terminal can communicate in forward link (AN-to-AT link) or reverse link (AT-to-AN link) with the 1.25MHz bandwidth with access network (AN) or base station.

In the reverse link of 1xDO system, there is access channelling mode (comprising pilot channel and data channel), for example, this access channelling mode can be used for communicating by letter of initialization and AN by AT.The reverse link of 1xDO system also comprises the Traffic Channel pattern, and this pattern can be used for to AN transport service or signaling message by AT.The Traffic Channel pattern comprises one or two pilot channels, and three media access controls (MAC) channel is confirmed (Ack) channel and data channel.The MAC channel comprises the reverse rate indicating channel, data rate control (DRC) channel and data source control (DSC) channel.In 1xDO system forward link, there is pilot channel, media access control (MAC) channel is confirmed (Ack) channel, control channel and Traffic Channel.The MAC channel comprises Reverse Activity (RA) channel, DRCLock channel and reverse power control channel.

In the 1xDO system, AT is measure signal interference noise ratio (SINR) during being used for the pilot burst of some pilot signals.Then this AT utilizes the measured value SINR of strong pilot tone to determine the peak data rate that it can reliable decoding.Then this AT utilize DRC channel (on reverse link) notify AN on forward link (AN-to-AT link) ideal data speed and chosen cell sector.

Multi-carrier modulation is a kind of modulation technique, and wherein data are modulated onto on a plurality of carrier waves or the subcarrier, rather than are modulated onto on the single carrier.OFDM (OFDM) is the example of a multi-carrier modulation, and its sub-carriers is orthogonal.MC-CDMA (MC-CDMA) is the example of another multi-transceiver technology, and this multi-transceiver technology adopts multicarrier and spreading code simultaneously, and this spreading code has orthogonal property.In each frequency band, tranmission techniques or form are used for the similar or the same of single-carrier system with those.

Recently, multicarrier 1xEV-DO (for example NxDO) has been proposed for cdma2000 evolution.For example, in the 3xDO kind, AT can communicate by letter the frequency band of each carrier wave 1.25MHz with AN at the 5MHz wireless channel that 3 carrier waves are provided.The NxDO system is multicarrier system, and it allows AT to communicate by letter with AN on a plurality of 1.25MHz frequency bands, and each frequency band can adopt those tranmission techniques that uses and forms that be similar in the 1xDO system.Because independently occurrence frequency selection decline and other distortion on each carrier wave is useful so permission ditch between AT and AN is common to the transmit data rate control information of each carrier wave in such multicarrier system.

Exist in a kind of Q at transmitter (quadrature) branch DRC value or the drc signal that is used for multicarrier carried out the motion of time division multiplexing (TDM).High pass, has been submitted " cdma2000 evolution technology summary ", C00AIE-20050310-027R1 on March 10th, 2005 in cdma2000 evolution seminar.In this motion, the long DRC time of 8 time slots and the DRC length of 2 time slots are adopted in the TDM of DRC value report, and report 4 DRC values every 13.3ms on a reverse link carriers.The shortcoming of this motion comprises the described long DRC time, and this DRC time can reduce the sensitive periodic gain of forward link channel.The default setting that is used for the DRCLength in soft handover (SHO) territory is 4 time slots, and needs to increase DRC and gain to support shorter DRCLength, for example DRCLength of 2 time slots.In addition, in Q branch all DRC values of report, this will typically increase peak equal (P/A) ratio of mobile transmitter.

Summary of the invention

The various embodiment that the technology of open transmit data rate control signal with being used for multi-carrier wireless system is relevant.

Provide a kind of method according to example embodiment, the method comprises each data rate control (DRC) value that is identified in a plurality of carrier waves, described a plurality of DRC values are carried out spread spectrum, and transmit at least one in described a plurality of spread spectrum DRC value and transmit in described a plurality of spread spectrum DRC value at least one via quadrature phase (Q) channel via homophase (I) channel.

According to another example embodiment, provide a kind of wireless device.Described wireless device can be adapted to be identified for each the DRC value in a plurality of forward link carriers, and transmit at least the one DRC value in the described DRC value via reverse chain channel by in-phase channel, and transmit at least the two DRC value in the described DRC value by quadrature phase channel.

According to another example embodiment, provide a kind of wireless device.Described wireless device goes for transmitting at least the first data rate control (DRC) value and being sent to few the 2nd DRC value via quadrature phase channel via in-phase channel.A described DRC value can be associated with the first forward link carriers and described the 2nd DRC value can be associated with the second forward link carriers.

Description of drawings

Fig. 1 is the block diagram according to example embodiment explanation DRC channel;

Fig. 2 is the block diagram that illustrates according to the DRC channel of another example embodiment;

Fig. 3 illustrates distribution drc signal according to example embodiment to the I of mobile transmitter and the block diagram of Q branch;

Fig. 4 is the flow chart that illustrates according to the operation of the wireless device of example embodiment; And

Fig. 5 is the block diagram that illustrates according to the device that can provide in wireless device or radio node of example embodiment.

Embodiment

According to example embodiment, the drc signal that is used for multicarrier can transmit with Q (quadrature mutually) branch via I (homophase) branch of AN transmitter.For example, if have three forward link carriers C1, C2 and C3, described AT can will be assigned in the Q branch by the first and second quadratures (for example Walsh) yard carrier wave C1 that distinguishes and the drc signal of C2, and for example via the 3rd quadrature (perhaps Walsh) code, will be assigned to for the drc signal of carrier wave C3 I branch.(term drc signal described herein can refer to one or more DRC value that transmits at the reverse link that is used for carrier wave in some cases.For example, might there be drc signal for each forward link carriers; Although term drc signal and DRC value can be used with being replaced in some cases).

In addition, by considering () at the I branch that is used for the AT reverse link and other channel that Q branch is transmitted, drc signal can be assigned in the mode that load balancing or power equalization are provided basically I branch and Q branch.By this way, in Q branch or only transmit all drc signals in I branch and compare, can be all (P/A) ratios of peak that multicarrier system reduces the AT transmitter with only.

According to example embodiment, each sector (perhaps base station) can transmit the pilot signal (or pilot channel) for each carrier wave.For example, in three carrier systems, the pilot signal for each carrier wave C1, C2 and C3 can be transmitted in (AN's) each sector or base station.

In addition, (being used for the AT reverse link) DRC channel can comprise the drc signal (perhaps symbol) for each carrier wave and the DRC package (or Walsh package (Walsh cover)) and the DRC Length that are used for each carrier wave.In one embodiment, can upgrade DRC and DRC package (DRC cover) value every duration or the longer time of DRC Length.AT can monitor for from each the channel quality in the multicarrier of a plurality of sectors or base station.This can by for example by AT monitoring for carrying of the pilot tone of each carrier wave do (C/I) than or some other channel quality relevant parameters realize, wherein said each carrier wave is from a plurality of sector/base stations each.

Based on measured channel quality (for example based on the C/I ratio from the pilot tone that receives of a plurality of sectors), AT can select in the described sector.For example, selected sector or base station can be preferably or the sector of first water or base station, can therefrom receive reliably forward link traffic with the flank speed for carrier wave (perhaps for one or more carrier waves), although the disclosure is not limited to this.In example embodiment, selected sector or base station can be to have sector for the first water pilot signal of one or more (perhaps whole) in the carrier wave (for example, compare in its carrier wave one or more with other sector and have the sector of the highest C/I ratio).

In addition, for one group of each sector of enlivening the sector that is used for AT, AT can receive the DRC package (being also referred to as the Walsh package) corresponding to the sector.In example embodiment, the DRC package can be to be mapped to 3 digital bits that 8 length are one of possible Walsh code of 8.Certainly, other size also can be used to DRC package (being also referred to as the Walsh package).

In addition, based on channel quality, AT can select the institute's requested data rates for each of carrier wave.Each carrier wave can have different measured channel qualities, for example based on the C/I ratio of surveying on the pilot signal of described carrier wave.As a result, can be different because be used for the channel quality of each carrier wave, so AT can select or clearly specify the forward link data rate to AN that is used for each carrier wave.

AT can be mapped to the drc signal for each carrier wave with selected data rate (perhaps block form).Therefore, data rate can be mapped to the DRC value based on each carrier wave.Each DRC value (perhaps DRC symbol) can be 4 bit DRC values for example, its for example identify AN can (perhaps be required) to be used for to the forward link of AT corresponding carriers transmit data, in maximum 16 possible data speed (perhaps block form) one.Therefore, the DRC value that is used for each carrier wave has typically reflected (for the selected sector) channel quality that is used for each carrier wave.

In case AT has selected the sector, and also identified (the being mapped to the DRC value) forward link data rate (perhaps block form) that is used for each carrier wave, the DRC package of selected sector is used to the DRC value of each carrier wave is carried out spread spectrum.Because the DRC package is orthogonal, AN can determine the sector selected by AT.Then, be used for the carrier wave of DRC value in order to distinguish DRC channel and identification from other channel reverse link, the spread spectrum DRC value of each carrier wave is by different Walsh spreading code spread spectrums.So, according to example embodiment, can send in the consequent spread spectrum DRC value each in the I of transmitter branch or Q branch.In another example embodiment, each in I branch and Q branch is sent to few DRC value, although the disclosure is not limited to this.

Fig. 1 is the block diagram according to example embodiment explanation DRC channel.In this embodiment, if will send two drc signals (each drc signal provides the DRC value corresponding to forward link carriers) at reverse link carriers, then a drc signal can be used for example W ³² ₈(32 may Walsh in the code Walsh code 8) come spread spectrum, and another drc signal can be with for example W ³² ₂₄Come spread spectrum, and these two drc signals can be transmitted on the time slot.Can adopt other Walsh code, and this only is an example.The transmission of (be used for a plurality of forward link carriers each) a plurality of DRC values on less reverse link carriers can be called as asymmetric multi-carrier mode.For example, because the number of DRC value/forward link carriers is more than the number of the reverse link carriers that is used for transmitting described DRC value, so that it can be regarded as is asymmetrical, and therefore, can be in a plurality of DRC values of one or more reverse link carriers transmission.In this example, these two DRC values all are transmitted in the embodiment shown in fig. 1 the Q branch.Under these circumstances, compare and DRCLength need to be doubled with 1xDO, with the power of balanced I and Q basically, for example adopt the DRCLength=4 time slot for non-SHO, and adopt DRCLength=8 time slot (SHO represents the soft handover territory) herein for SHO.

With reference to figure 1, DRC value or symbol (for example 4 bit DRC values of every time slot) are imported into bi-orthogonal coded device 110.The bi-orthogonal coded that encoder 110 is carried out the DRC value, then signaling point mapping block 112 is mapped to the DRC value that is encoded+the 1/-1 signal level.At piece 114, DRC package value (for example 3 bit values of every time slot or symbol) is mapped to Walsh package or Walsh code, is used for the transmission sector of forward link with identification.At multiplier 116 places, the DRC value that is encoded is by DRC package value (the perhaps Walsh package) spread spectrum corresponding to selected sector.Adopt the DRC package to carry out the sector that spread spectrum allows AN identification to be selected by AT.

Then, at multiplier 118 places, be used to the different Walsh code spread spectrums of each carrier wave from the spread spectrum DRC value of multiplier 116 outputs.For example, can be by W for the DRC value of carrier wave C1 ³² ₈Come spread spectrum, and can be by for example W for the DRC value of carrier wave C2 ³² ₂₄Come spread spectrum.Can be provided to the spread spectrum (the Walsh codes that every carrier wave is different) of the DRC value of different carrier by different Walsh codes at multiplier 118 places for: 1) other channel (for example ack channel) from the described reverse link is distinguished the DRC channel; 2) identification is corresponding to the carrier wave of each DRC value (namely typically in multiplier 118 each used different Walsh code can be mapped to different carrier waves).

Fig. 2 is the block diagram that illustrates according to the DRC channel of another example embodiment.Fig. 2 can be used to illustrate such DRC channel, wherein can be on the reverse link, for example two time slots transmission three or four DRC values (corresponding to 3 or 4 carrier waves on the forward link).If, for example will transmit three DRC values (each DRC value is corresponding to the different carrier that transmits on the forward link) at reverse link carriers, then a DRC value (for example corresponding to carrier wave C1) can be transmitted in the I branch, and two DRC values (for example corresponding to carrier wave C2 and C3) can be transmitted in the Q branch, wherein for non-SHO DRCLength=2 are arranged.(note: according to example embodiment, for the DRCLength of the SHO twice of the DRCLength of right and wrong SHO typically, but in the following explanation in order simply then to omit).The Walsh code (for example corresponding to carrier wave C1, C2 and C3) that is used for three DRC values of transmission for example can be: W ⁶⁴ ₈, W ⁶⁴ ₄₀, W ⁶⁴ ₂₄

If will transmit four drc signals (for example these four drc signals are corresponding to four different carriers that transmit on the forward link) at reverse link, then a DRC value (for example corresponding to carrier wave C1) can be transmitted in the I branch of transmitter, and three DRC values (for example corresponding to carrier wave C2, C3 and C4 on the forward link) can be transmitted in the Q branch of described transmitter, wherein for non-SHO DRCLength=4 is arranged, and transmit whole four DRC values at two time slots.The Walsh code that is used for described four the DRC values of spread spectrum for example can be: W ⁶⁴ ₈, W ⁶⁴ ₄₀, W ⁶⁴ ₂₄, W ⁶⁴ ₅₆, but this only is an example.

With reference to figure 2, DRC value or symbol (for example 4 bit DRC values of every time slot) are imported into bi-orthogonal coded device 210.210 pairs of described DRC values of encoder are carried out bi-orthogonal coded, and then signaling point mapping block 212 is mapped to the DRC value that is encoded+the 1/-1 signal level.At piece 216 places, DRC package value (for example every time slot 3 bit values or symbol) is mapped to Walsh package or Walsh code, is used for the transmission sector of forward link with identification.At multiplier 214 places, the DRC value that is encoded is by Walsh package (Walsh code) spread spectrum corresponding to selected sector.With DRC package spread spectrum so that allow AN to determine the sector of being selected by AT.Then, at multiplier 218 places, (for example the DRC value as carrier wave C1 adopts W to use different Walsh codes for each carrier wave ⁶⁴ ₈, for the W of carrier wave C2 ⁶⁴ ₄₀, for the W of carrier wave C3 ⁶⁴ ₂₄And the W that is used for carrier wave C4 ⁶⁴ ₅₆), spread spectrum is from the spread spectrum DRC value of multiplier 214 outputs.This only is that an example and the disclosure are not limited to this.Then, transmit each by the DRC value of spread spectrum via above-mentioned I or Q branch.

DRC channel with reference to figure 2, by transmitting three or four DRC values (being used for three or four forward link carriers) via the different orthogonal code that is used for each drc signal at two time slots, and utilize the time slot of DRCLength=2 (to be used for three carrier waves, non-SHO) and utilize the time slot of DRCLength=4 (to be used for four carrier waves, non-SHO), compare with the scheme that time division multiplexing transmits a plurality of drc signals of passing through that other has proposed, at least in some cases the DRC value can (transmission time slot still less) be sent to AN and can be upgraded more continually (because shorter DRCLength) within the shorter time, although the disclosure is not limited to this.And, according to example embodiment, at least in some cases, I and Q branch all are used for transmitting drc signal, delivering power in described I and Q branch is only more balanced in the situation that a branch transmits than all drc signals like this, although the disclosure is not limited to this.

Usually, according to example embodiment, for N the drc signal that transmits at reverse link carriers (for example each carrier wave has a drc signal), the number of the drc signal that transmits in I branch is that the number of L and the drc signal that transmits in Q branch is M, and N=L+M, N can with a kind of can greatly balanced I and the mode of Q branch delivering power distribute (and this considers other channel that transmits at reverse link).Thereby N refers to the sum (also being the sum of drc signal, drc signal of each forward link carriers) of forward link carriers.Table 1 has been summed up N (DRC sum or forward link carriers sum) and has been reached 15 example embodiment.

The quantity of N=DRC signal	The quantity of the drc signal of L=in I branch	The quantity of the drc signal of M=in Q branch	Non-SHO DRCLength	Used Walsh code
					2	0	2	4	W 32 8，W 32 24
3	1	2	2	W 64 8，W 64 40，W 64 24
					4	1	3	4	W 64 8，W 64 40，W 64 24，W 64 56
5	1	4	4	W 128 8，W 128 72，W 128 24，W 128 88，W 128 40
					6	2	4	4	W 128 8，W 128 72，W 128 24，W 128 88，W 128 40，W 128 104
7	2	5	4	W 128 8，W 128 72，W 128 24，W 128 88，W 128 40，W 128 104，W 128 56
					8	3	5	4	W 128 8，W 128 72，W 128 24，W 128 88，W 128 40，W 128 104，W 128 56，W 128 120
9	2	7	8	W 256 8，W 256 136，W 256 72，W 256 24，W 561 52，W 256 40，W 256 168，W 256 56，W 256 184
					10	3	7	8	W 256 8，W 256 136，W 256 72，W 256 200，W 256 24，W 256 162，W 256 40，W 256 168，W 256 56，W 256 184
11	3	8	8	W 256 8，W 256 136，W 256 72，W 256 200，W 256 24，W 256 152，W 256 40，W 256 168，W 256 56，W 256 184，W 256 88
					12	4	8	8	W 256 8，W 256 136，W 256 72，W 256 200，W 256 24，W 256 152，W 256 40，W 256 168，W 256 56，W 256 184，W 256 88，W 256 206
13	4	9	8	W 256 8，W 256 136，W 256 72，W 256 200，W 256 24，W 256 152，W 256 40，W 256 168，W 256 56，W 256 164，W 256 88，W 256 206，W 256 104
					14	5	9	8	W 256 8，W 256 136，W 256 200，W 256 24，W 256 152，W 256 40，W 256 168，W 256 56，W 256 184，W 256 88，W 256 208，W 256 104，W 256 232
15	5	10	8	W 256 8，W 256 138，W 256 72，W 256 200，W 256 24，W 256 152，W 256 40，W 256 168，W 256 56，W 256 104，W 256 88，W 256 200，W 256 104，W 256 232，W 256 120

Table one

Fig. 3 is the block diagram that illustrates according to the drc signal distribution of arriving mobile transmitter I and Q branch of example embodiment.According to embodiment illustrated in fig. 3, Auxiliary Pilot Channel, RRI channel, Ack channel, DSC channel, data channel and part DRC channel (drc signal that comprises L code division multiplexing) can be added in and form together synthetic I channel.Another part of described data channel and described DRC channel (drc signal that comprises M code division multiplexing) can be added in and form together synthetic Q channel.This allows in the individual drc signal of N (sum) some to be assigned to I branch and some drc signals and is assigned to described Q branch.As previously mentioned, each in the individual drc signal of N (L+M) with different orthogonal intersections or Walsh code by spread spectrum.Then, described synthetic I and Q channel by orthogonal spectrum expansion (based on PN long code, PN short code and Walsh code), filtering, be modulated to the suitable carrier wave that is used for reverse link, then be sent out as s (t).

According to example embodiment, the portable terminal in the multicarrier system or access terminal (AT) can monitor a plurality of pilot signals (for example, pilot signal of each carrier wave) from one or more sector (perhaps base station).Be based upon the channel quality of the pilot signal measurement of each carrier wave, AT can select the best or preferred sector, and selects to be used for the data rate (data rate of for example asking) of each carrier wave.Then, the selected data speed for each carrier wave is mapped to the DRC value and comes spread spectrum by the DRC package.The DRC package can be orthogonal code or Walsh code, in order to be used for the AN sector that forward link transmit of identification by the AT selection.Then, the DRC value of institute's spread spectrum is used to the different orthogonal Walsh code spread spectrum of each carrier wave.For example, the DRC value that is used for carrier wave C1 is come spread spectrum by a Walsh code, and the DRC value that is used for carrier wave C2 is come spread spectrum by the 2nd Walsh code, and the DRC value that is used for carrier wave C3 is come spread spectrum etc. by the 3rd Walsh code.By come corresponding to the different orthogonal code of each carrier wave to (different carrier) DRC value carry out spread spectrum can: 1) on reverse link, from other channel (for example ack channel), distinguish described DRC channel; And 2) identification is corresponding to the carrier wave (that is, each the different Walsh code for spread spectrum can typically be mapped to different carrier waves) of each DRC value.

Then transmit the DRC value of institute's spread spectrum, in the wherein said DRC value some (for example one or more) are transmitted in the I branch and some (for example one or more) in the described DRC value are transmitted in the Q branch, although the disclosure is not limited to this.According to example embodiment, and only transmit DRC value in I or Q branch and compare, at least in some cases, I and Q branch transmit DRC value can to and improved load balancing and/or equal (P/A) power ratio in reduction peak.In another example embodiment, can be with different orthogonal code (for example Walsh code) by spread spectrum from each corresponding DRC value in a plurality of carrier waves, and can only be transmitted in one of I or Q branch, for example in Q branch.

Fig. 4 is the flow chart that illustrates according to the operation of the wireless device of example embodiment.410, determine data rate control (DRC) value for each of a plurality of carrier waves.For example, each DRC value can identify the data rate for carrier wave.Operation 410 can comprise, for example operates 412 and 414.412, can measure for each the channel quality parameter in a plurality of carrier waves.For example, this can be by receiving the pilot signal be associated with each carrier wave, and realize for measurement signal to noise ratio or other channel quality parameter of each pilot tone.414, based on described each sign DRC value (for example based on the channel quality of pilot signal or forward link carriers, selecting data rate corresponding to the DRC value) that is measured as in described a plurality of carrier wave.

420, a plurality of DRC values are by spread spectrum.This spread spectrum can comprise that employing DRC package code comes spread spectrum, and this DRC package code can be associated with base station or radio sector (for example the DRC package can be used for identifying selected sector).422, adopt the DRC package code corresponding to radio sector to come a plurality of DRC values are carried out spread spectrum.Operation 422 can comprise, for example, determine from which radio sector via the forward link channel receive data, and the employing Walsh code corresponding with determined radio sector carries out spread spectrum to a plurality of DRC values.

Spread spectrum 420 also (or alternatively) comprises, for example, is operating 424, and employing comes each DRC value of spread spectrum corresponding to the Walsh code that (perhaps sign) is used for the carrier wave of DRC value.Operation 424 can comprise the Walsh code that is identified for each carrier wave, then adopts the Walsh code corresponding to described carrier wave to come each DRC value of spread spectrum.Each carrier wave has different Walsh code (to allow coming discriminatory carrier based on the Walsh code).Perhaps, according to another example embodiment, in some cases, identical Walsh code can be used to two different carrier waves, the DRC value that wherein is used for these two carrier waves is transmitted in different I/Q channel (the DRC value that for example, is used for a carrier wave be transmitted on the in-phase channel and be transmitted in quadrature phase channel for the DRC value of another carrier wave).

430, a plurality of at least one by in the DRC value of spread spectrum are transmitted via homophase (I) channel, and described a plurality of at least one by in the DRC value of spread spectrum is transmitted via quadrature phase (Q) channel.Therefore, for example, a DRC value that is used for first carrier can be transmitted at the I channel, and second and third DRC value that is respectively applied to the second and the 3rd carrier wave can be transmitted at for example Q channel.In the situation that 4 carrier waves, for example, the DRC value that is used for described first carrier can be transmitted in described I channel, and can be transmitted in described Q channel for the DRC value of other three carrier waves.These only are some examples, and the disclosure is not limited to this.

Fig. 5 is the block diagram that may be provided in the device 500 in wireless device or the radio node that illustrates according to example embodiment.The example radio node can comprise: for example, the transceiver 502 that is used for transmission and receives signal, the controller 504 that is used for controlling the operation of described node or device and carries out instruction or software, and the memory 506 that is used for storage data and/or instruction.Controller 504 can be programmable, and can carry out software or other instruction that is stored on memory or other computer media, and is for example above with reference to the described various tasks of figure 1-4 and function to carry out.

For example, device 500 can be programmed to or be configured to: (for example by controller 504) is identified for each data rate control (DRC) value in a plurality of forward link carriers, and via reverse chain channel by homophase (I) channel (for example, via other pieces shown in transceiver and/or above Fig. 1-3) transmit at least the one DRC value, and transmit at least the two DRC value by quadrature phase (Q) channel.According to example embodiment, wireless device 500 is to be compatible with or to be compatible with at least in part CDMA2000 EV-DO revised edition B/3GPP2 C.S0024-B, and/or can be compatible mutually with other standard or technology.Wireless device 500 for example may operate under the asymmetric multi-carrier mode, wherein is used for forward link carriers number that data transmit more than the reverse link carriers number that is used for transmitting for the DRC value of forward link carriers.According to example embodiment, this can be included in and transmit the DRC value that is used for one or more carrier wave on the I channel, and transmits the DRC value that is used for one or more carrier wave at the Q channel.

Wireless device 500 can comprise, the bi-orthogonal coded device that for example is used for the DRC value is encoded (for example 210), adopt the first multiplier (for example 214) that comes the coded DRC value of spread spectrum with the DRC package code of radio sector, and the second multiplier of employing Walsh code further spread spectrum each the DRC value corresponding with the carrier wave of described DRC value (for example 218), yet this just describes some embodiment, and the disclosure and enforcement are not limited to this.

According to another example embodiment, for example, wireless device 500 can be programmed to or be configured to: transmit at least the first data rate control (DRC) value and transmit at least the two DRC value by quadrature phase (Q) channel by homophase (I) channel.According to example embodiment, a described DRC value can be associated with the first forward link carriers, and the 2nd DRC value can be associated with the second forward link carriers.Embodiment of the present disclosure can find in the CDMA2000 EV-DO revised edition B that for example delivers as 3GPP2 C.S0024-B.

It will be appreciated that, current disclosed enforcement can be used in plurality of devices and device.Although current announcement is not limited to this, for example, technology disclosed herein, method, circuit or system can be used in a lot of different devices, for example in the transmitter and receiver of wireless system.The wireless system that intention is included in the current open scope comprises, only by way of example, for example wireless device and the system of WLAN (WLAN) equipment and radio wide area network (WWAN) equipment, comprise wireless network interface devices, wireless network interface card (NICs), the base station, access point (APs), gateway, bridge, hub, cellular radiotelephone communication systems, cellular device, access terminal, access network device, access point, other is fixed or mobile transceiver, portable computer, mobile phone, satellite communication system, two-way radio communications system, beeper, PCS Personal Communications System (PCS), PC (PCs), personal digital assistant (PDAs), mobile radio station and other wireless device or wireless system are although the scope of the present disclosure is not limited to this.

In addition, various embodiment of the present disclosure is applicable to various technology, communication protocol and standard.Example described herein only is provided for the purpose of illustration, and the disclosure is not limited to this.

In addition, various enforcements can realize in hardware, special circuit, software, logic or its any combination.For example, some aspect can realize with hardware, and other side can be by can being realized by firmware or software that controller, microprocessor or other computing equipment are carried out, yet the disclosure is not limited to this in addition.Although various aspect of the present disclosure can or adopt some other diagrammatic representation to illustrate and describes with block diagram, flow chart, but fully understand that these pieces described herein, device, system, technology or method can pass through hardware, software, solid, special circuit or logic, common hardware or controller or other computing equipment etc., perhaps its some in conjunction with in realize.

Enforcement of the present disclosure can be implemented in the various assemblies of for example integrated circuit modules.Generally speaking, the design of integrated circuit is supermatic step.Complicated and powerful Software tool can be used for logical layer design be converted at any time can be on Semiconductor substrate the semiconductor circuit design of etching and formation.

For example by Synopsys, Inc.of Mountain View, California and CadenceDesign, of San Jose, those programs that California provides, adopt established design rule and a large amount of pre-stored storehouse that designs a model, automatically route conductors and positioning component on semiconductor integrated chip.In case finished the design for semiconductor circuit, consequent design with the electronic form of standard (Opus for example, GDSII, similar) be sent to semiconductor manufacturing tool or for the manufacture of " factory ".

Although as explained in this description understand as described in some feature of embodiment, can expect a lot of modifications, replacement, variation and equivalents now for those skilled in the art.Therefore, should be understood that the claims intention covers all modifications and the variation of the real original idea that falls into the disclosure or disclosed embodiment.

Claims (17)

1. method that is used for radio communication comprises:

Be identified for from each the data rate control DRC value in a plurality of forward link carriers of the multi-carrier transmission of base station, a plurality of DRC values comprise the DRC value that is associated with first carrier in described a plurality of forward link carriers and the 2nd DRC value (410) that is associated with the second carrier wave in described a plurality of forward link carriers at least;

A described DRC value and described the 2nd DRC value are carried out spread spectrum (420);

Before described spread spectrum, distribute at least a described DRC value to homophase (I) channel, distribute at least described the 2nd DRC value to quadrature phase (Q) channel;

Pass through reverse link, homophase (I) channel via input orthogonal spectrum expansion piece transmits at least by a described DRC value of spread spectrum, and transmits at least by described the 2nd DRC value (430) of spread spectrum via quadrature phase (Q) channel of the described orthogonal spectrum expansion piece of input.

2. according to claim 1 method, wherein saidly determine to comprise:

Measurement is for each the channel quality parameter (412) in described a plurality of forward link carriers;

Based on described measurement, be identified for the data rate control DRC value (414) that each the data rate in described a plurality of forward link carriers is identified.

3. according to claim 2 method, wherein said measurement comprises:

Receive and each pilot signal that is associated in the forward link carriers; And

Measurement is for signal to noise ratio or other channel quality parameter of each pilot signal.

4. according to claim 1 method, wherein said spread spectrum comprise and adopt the Walsh code corresponding with radio sector to come the described DRC value of spread spectrum and described the 2nd DRC value.

5. according to claim 1 method, wherein said spread spectrum comprises:

Which determine from radio sector via the forward link channel receive data;

Adopt the Walsh code corresponding with determined radio sector to come the described DRC value of spread spectrum and described the 2nd DRC value.

6. according to claim 1 method, wherein said spread spectrum comprises:

Be identified for each the Walsh code in described a plurality of forward link carriers;

Adopt the Walsh code corresponding with described carrier wave to come each DRC value of spread spectrum.

7. according to claim 6 method, wherein said spread spectrum comprise and adopt each different Walsh codes that are used for described a plurality of forward link carriers to come each DRC value of spread spectrum.

8. according to claim 1 method, wherein said spread spectrum comprises:

Adopt the DRC package code corresponding with radio sector to come the described DRC value of spread spectrum and described the 2nd DRC value (422); And

Adopt the code corresponding with the carrier wave that is used for described DRC value to come each DRC value (424) of further spread spectrum.

9. according to claim 1 method, wherein saidly determine to comprise: be identified for first carrier the first data rate control DRC value, be used for the 2nd DRC value of the second carrier wave and for the 3rd DRC value of the 3rd carrier wave;

Wherein said spread spectrum comprises a described DRC value, the 2nd DRC value and the 3rd DRC value is carried out spread spectrum; And

Wherein said transmission comprises:

Homophase I channel via the described orthogonal spectrum expansion piece of input transmits by a described DRC value of spread spectrum; And

Quadrature phase Q channel via the described orthogonal spectrum expansion piece of input transmits by described the 2nd DRC value of spread spectrum and by described the 3rd DRC value of spread spectrum.

10. according to claim 1 method, wherein saidly determine to comprise: be identified for first carrier the first data rate control DRC value, be used for the second carrier wave the 2nd DRC value, be used for the 3rd DRC value of the 3rd carrier wave and for the 4th DRC value of the 4th carrier wave;

Wherein said spread spectrum comprises a described DRC value, the 2nd DRC value, the 3rd DRC value and the 4th DRC value is carried out spread spectrum; And

Wherein said transmission comprises:

Homophase I channel via the described orthogonal spectrum expansion piece of input transmits by a described DRC value of spread spectrum; And

Quadrature phase Q channel via the described orthogonal spectrum expansion piece of input transmits by described the 2nd DRC value of spread spectrum, by described the 3rd DRC value of spread spectrum and by described the 4th DRC value of spread spectrum.

11. a communication means that is used for wireless device (200 or 500) comprises:

Be identified for from each the data rate control DRC value in a plurality of forward link carriers of the multi-carrier transmission of base station, described DRC value comprises the DRC value that is associated with first carrier in described a plurality of forward link carriers and the 2nd DRC value that is associated with the second carrier wave in described a plurality of forward link carriers at least;

At least distribute a described DRC value to homophase (I) channel, distribute at least described the 2nd DRC value to quadrature phase (Q) channel;

Via reverse chain channel, transmit at least the one DRC value in the described DRC value by the homophase I channel of inputting described orthogonal spectrum expansion piece, and transmit at least the two DRC value in the described DRC value by the quadrature phase Q channel of inputting described orthogonal spectrum expansion piece.

12. method according to claim 11, the compatible CDMA2000 EV-DO of wherein said wireless device revised edition B/3GPP2 C.S0024-B.

13. method according to claim 11, wherein said wireless device operates in the asymmetric multi-carrier mode, and the number that wherein is used for the forward link carriers that data transmit is more than the number that is used for transmitting for the reverse link carriers of the DRC value of described forward link carriers.

14. method according to claim 11 further comprises:

Described DRC value is encoded;

The DRC value that adopts the DRC package code corresponding with radio sector to come spread spectrum to be encoded; And

Adopt the Walsh code corresponding with the carrier wave that is used for described DRC value to come each DRC value of further spread spectrum.

15. method that is used for wireless device (200 or 250), comprise: pass through reverse link, homophase I channel via input orthogonal spectrum expansion piece transmits at least the first data rate control DRC value and transmits at least the two DRC value via the quadrature phase Q channel of inputting the orthogonal spectrum expansion piece, a described DRC value is associated with the first forward link carriers and described the 2nd DRC value is associated with the second forward link carriers, and described the first and second forward link carriers are the part from the multi-carrier transmission of base station.

16. method according to claim 15, the compatible CDMA2000 EV-DO of wherein said wireless device revised edition B/3GPP2 C.S0024-B.

17. method according to claim 15 further comprises:

Described DRC value is encoded;

The DRC value that adopts the DRC package code corresponding with radio sector to come spread spectrum to be encoded; And

Adopt the Walsh code corresponding with the first forward link carriers to come the described DRC value of further spread spectrum, and the employing Walsh code corresponding with described the second forward link carriers come described the 2nd DRC value of further spread spectrum.

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