TW200812271A - Wireless communication method and apparatus for performing hybrid timing and frequency offset for processing synchronization signals - Google Patents

Abstract

The present invention is related to a receiver having a plurality of antennas for receiving and performing hybrid timing and frequency offset on at least one signal that includes at least one synchronization channel (SCH) symbol having a plurality of time domain repetitive blocks. The receiver further includes an auto-correlation unit that outputs an auto-correlation result and the power of the received signal, a coarse timing detection unit that generates a coarse timing metric, a frequency offset estimation unit that generates a coarse frequency offset metric based on the coarse timing metric and the received signal, a frequency offset compensation unit that generates a compensated version of the received signal, and a fine tuning detection unit that generates a fine tuning detection metric based on a sample of the compensated version of the received signal that is cross-correlated with a primary synchronization channel (P-SCH) code sequence.

Description

200812271 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a wireless communication receiver. In particular, the present invention is related to the prior art in the Evolved Universal Terrestrial Radio Access (E_UTRA) system (IV) by performing the mixing and frequency offset tilting (four) step city. Three Generations of Partners: (3GPP) and 3GPP2 are considering long-term evolution, where the evolution of the radio interface and network architecture is required. The downlink/predecessor (4) UTRA downlink uses orthogonal frequency division multiple = (OFDMA). When in the evolved UTRA system (the wireless transmit/receive single:::::TRU must perform frequency and frame timing with the (best) cell), the fast-transmitting leaf transform (FFT) Synchronization processing of symbol timing, and must recognize the 7L identification (ID). This processing is called cell search. == Some _ dao. It is the middle of the transmission bandwidth of .25 shame. The closing $ is occupied by two (2) (10) ship tones (four) (4); 6 200812271 line SCH Κ) 5. The SCH 105 is mapped to the central portion of the overall system transmission bandwidth (eg, 20 MHz, 15 MHz, 1 () MHz, 5 MHp 2·5 ΜΗζ, and 1·25 ΜΗζ). In the prior art towel, the primary synchronization channel (P_SCH) symbol contains The time domain repeating blocks are generated by directly mapping the synchronization sequences on the subcarriers in an equally spaced manner. That is to say, in order to generate the K-health block in the time domain, the sub-carriers of every κ subcarriers are used for the synchronization channel. It is currently known that a P-SCH symbol with two repeating blocks will produce a stable segment in the timing detection (Caf (10)), while a larger number of repetitions (>2) will eliminate such a plateau. However, the symbol-to-noise ratio (SNR) of a symbol decreases as the number of repetitions increases, which in turn reduces the inspection function. In order to solve this problem, it is desirable to improve the generation of the P_SCH symbol of the E-UTRA system.匕 [Summary] The present invention and the -_^E_UTRA full-synchronous channel structure and corresponding receiving secrets (4). This bribe determines the problem of loss of synchronization performance, which is caused by cross-correlation with large frequency offset or by inaccurate timing of detection-based autocorrelation. In still another embodiment, the present invention provides a recipient having a plurality of antennas, receiving at least a signal and performing a mixing timing and frequency offset processing thereon, wherein the at least the signal includes at least a synchronization channel (SCH) The symbol 'and the amount of money in the time domain is heavy. The connection 7 200812271 is more sentenced; ^ ^ ^ = 匕 · The self-crushing unit for outputting the autocorrelation result and receiving the signal power is used to generate the coarse timing detection unit of the coarse timing measure, and I is based on the (four) daily rotation measurement And receiving a frequency offset estimation unit that generates a coarse frequency offset, a received signal for generating a compensation form, a scale compensation unit, and a compensation form for cross-correlation with the Ρ-SCH code sequence 四(4) A precision tuning detection unit that produces precision touch detection metrics. [Embodiment] The term "wireless transmitting/receiving unit (WTRU), including but not limited to user equipment (10)), mobile station, fixed or mobile subscriber unit, pager, cellular telephone, personal digital assistant (PDA) ), computer or device, user equipment operating in a wireless environment. The base stations referenced below include but are not limited to Node B (N〇de_B), station controller, access point (AP) or It is any other peripheral device that can operate in a wireless environment towel. In the present invention, we propose a completely new method to generate a sync symbol for the E-UTRA system, so as to overcome the § loss problem. As disclosed in the commonly-assigned U.S. Patent Application Serial No. 11/611, the entire disclosure of which is incorporated by reference to the entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire content Then, the output of the DFT will be mapped to the central block of the subcarrier (that is, the continuous discard) to generate the (four) step symbol. In order to generate N in the time domain. Repeat block, N The same (except for the number 8 200812271 may be reversed) the sequence +A, _A (or +B, seven, where B is a symmetric form defined as A) is precoded by DFT, and the first, Can Wu patent The same way as disclosed in the application is mapped to localized subcarriers, while the primary sync symbol is generated after the belly τ. Figure 2 shows the traditional primary sync channel structure. Figure 3 shows the 0FDM. The main sync symbol ^ an instance, the = symbol contains four time domain repeat blocks, whereby the time domain pattern will be equal to / / and A is the length of the N / 4 year column, this - point with the co-transfer brother Qing, the same as disclosed in the case of the case, the first code of the shield ring (four) is attached at the beginning of each OFDM symbol to prevent intersymbol interference in the 0FDMA system (just.

In the other method shown in Fig. 4, the time domain pattern is equal to [a A two-axis 11/611, as disclosed in US Patent Application No. 51G, B is a symmetrical form defined as A. The sequence as well as having a good autocorrelation allows the first secret to produce a synchronization phase. The application of GCL sequences and other code sequences is disclosed in the joint patent application. Execution = Day = shows a block diagram of the receiver, where the receiver sequence and frequency offset detection are used to process the synchronization signal on the leg RA system. The receiver is inside. The receiver 5〇〇 includes an age U 5〇5. From _~ _ antenna ah, gas..., 5 call,..., estimate _ ” early 515, coarse timing detection unit 530, frequency offset 40 frequency offset compensation unit and precision timing detection sheet 9 200812271 yuan 565 〇 Less antenna, 5052, ..., 5^.., received to ϋ; 1: where the signal contains at least one synchronization channel (d 'the symbol has a complex time domain repeat block. The reception: =: 51 The P-th sync symbol is received corresponding to the qth antenna received on the sampling timing index side, and the sampling timing is represented by a sampling time unit for transmitting and receiving the downlink signal. = 515 receives the signal (10) training, and outputs the power of the second, the two-two autocorrelation result, and the receiving shout...) indicated by ah 525. The autocorrelation unit 515 is the autocorrelation of the receiving signal ^(4) 510: ) P-SCH signal with a repeating pattern received by the antenna 5〇f/jin ==, the sub-vector (four) marriage 〖Climb (four) is (4) is the vector of the received signal of the vector length 2 ^ and starts at the time of sampling, 2 is transpose = count. For the £ repeat pattern, the received (fourth) 'self She said off, and the auto-correlation Cloth as given below:

P Q Equation (1) k = 0 ^) = Σ Σ p = lq = l = P is the number of synchronization symbols used for level 1, 2 is the number of receiving antennas, : P-SCH day 1 domain. The operator ()' table is a Hermitaian operation, Κ/) = α(/)β(/ + 1)— , 彳, Ζ — 〇, 1, · · · · 5 U, (i 疋 Receive sampling ^ (4) In the search window ~ in the sampling timing index, NCP is the number of samples in the first code of the loop. 掬 帟 里 技 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是 是The number of consecutive transmissions of the received signal. During the period of the search window threshold, the autocorrelation processing of Equation 1 will be executed (~—N) times, and the timing will be detected. “Also, for the qi, 爯 pattern L repeat (the relevant example can see the tea in Figure 4) 'C (4) but + [_ shape, Zen γ is the direction, is the JE and the symmetry R?p of the received signal starting from the sampling timing index ^

(4) /=0 [The g ^ sync signal samples received in L, the autocorrelation of (4) is expressed, and this autocorrelation is given as follows: R7-sym{d) Equation (2) is like = The power of the sync symbol is represented by ?(4), and, PQ ς ς

Λ7 TV N cp H —1 Σ ^ k~Q Equation (3) The autocorrelation unit still outputs the S20 and the increased % rain input to the coarse timing detection unit for generation. The coarse λ 2 = 亥 coarse timing detection unit 530 calculates the ratio between the centers π, and compares the timing detection syllabus/class with the detection threshold π. in

^=3嶋_物'shishizaki (4) is taken down and the receiver details will continue to process the search window I If the network ///> (the gamma is less than 7, the sampling timing will be discarded and the search will continue to process the search) The next-sampling of the window AVt.. 200812271 v The factory/丨 恢 揿硎 揿硎 揿硎 揿硎 揿硎 取样 取样 取样 取样 取样 取样 sampling timing index 峨 selected for rough · d ^ =, r ^ jR (d) 1 ^ * / Wang ^coarse = argrnax<| d [P{d) Equation (4) (d) 5 Hai rough timing 4_6 535 and receiving frequency partial pure t - Ship 510 is fed to '抱冲早兀540' A coarse frequency offset 545 is produced.

= Offset: The estimation unit 540 performs a coarse frequency estimation of receiving the synchronization nickname by performing the following steps. The value of / is inserted into the autocorrelation output in Equation 1 or 2. 2) Then, the frequency offset estimator 535 calculates the coarse frequency offset & 545 as the autocorrelation frequency offset on the detected coarse sampling timing VII (4): () - fs w ycoarse '~~~ T arg^ τιΝ 一一1 PQ -Σ Σ P=1 q=\ k=〇} p^q (k + dc〇ars^r{k + d(

N, ^coarse^^J equation (5)

', '中' draws the frequency ^, and the rainbow gamma indicates the phase of the complex value x. The size of the autocorrelation window can be as large as z (that is, the pattern repeat size) to reduce the complexity. The coarse frequency offset 545 and the received signal 7 〇 51 〇 are fed to the frequency offset compensation unit 550 to generate a compensated received signal 555, wherein the signal is given as follows: L(4)(4) Equation (6) compensated reception The signal k(4) 555 and the P-SCH sequence 560) are fed to the precision timing detection unit 565 to generate a precision timing metric 57 〇. The precision timing detection unit 565 performs the following steps: 1) compensated reception in the search window Each of the 12 200812271 samples of the signal L(4) is cross-correlated with the P-SCH sequence (10). The output of this cross-correlation management can be expressed as follows: , i? Σ £ mL-\ Equation (7) 2) Then, the precision timing detection unit calculates the precision timing detection metric, where the far metric is equal to P(4). The most recent £/(^) 量 measure p (岣) of the sampling time index will be selected as the precision time ^(^-): ~-=arg7x{^^>77, 〇€仏~} Equation (8) Fig. 6 is a flow chart of the wireless communication method performed by the receiver 5 (8) of Fig. 5, wherein the hybrid timing and frequency offset detection is performed by the method ▲, thereby being able to verify The sync nickname is processed on the channel of E_UTRA. In step 6〇5, at least the signal %(4) is received, the hash number contains at least the sync channel (SCH) symbol, and the symbol has two complex time domain repeat blocks. The towel receiving signal ~(10) corresponds to the pth copper step symbol of the qth antenna of the sampling timing index. In step (10), the %(4) autocorrelation result expressed by qing is generated, and the household table is generated. Receiving the power of the signal %(4). At step 615, a coarse timing metric (4_) is generated based on the sum and ,, wherein the timing detection metric is calculated as the ratio between and between /> 620 'Time series detection metric paste / p (8) compared with a detection threshold 7 subscription. In step Step 625 t, if it is determined that the value of the class/house (9) is less than 200812271 77 ', the sampling timing index j is discarded (step 630). If the value in step 625 is greater than or equal to ", the sampling timing index d is regarded as Candidate detection timing (step 635), if it is determined in step 64 that another sampling timing index is to be considered, then method 6 〇〇 will return to step 6 〇 5. Otherwise, a maximum and "sampling timing between /P" is generated. The index d will be selected as the coarse detection timing metric (step 645). Example 1. - Performing a hybrid phase and frequency offset detection to generate one in the Evolved Universal Terrestrial Radio Access (U-UTRA) system a receiver for the synchronization signal on the channel, the receiver comprising: a complex antenna for receiving at least one message U, the signal includes a +: synchronization channel (SCH) symbol, and the symbol has a time domain block 'where the received signal % (4 corresponds to a sampling timing index ~ the p-th synchronization symbol of the antenna; and 罘q □

A precision tuning detection unit that generates a fine-tuning detection metric (heart) by sampling the Λ Λ / / (4) that is cross-correlated with the - primary synchronous channel (10) CH) code sequence, 2 The receiver according to embodiment 1, further comprising a fi-auto-correlation unit configured to connect to /) and outputting an autocorrelation result P(^) of (10) indicated by _ Receives the power of the signal %(4). 3. The receiver of embodiment 2, further comprising: a coarse timing detection unit configured to generate a coarse timing metric (I) by configuring 豕m and m, wherein the coarse material 14 200812271 sequential detection unit It is further configured to calculate a daily rotation detection metric as a ratio between qing and iY and to compare the timing detection metric/measurement threshold. The receiver according to embodiment 3, wherein if the value of ah/ is greater than or equal to ', the sampling timing is regarded as - the candidate detection timing' and the receiving benefit is processed in the _ search window~

sampling. , U 5. In the receiver 4 according to any of the embodiments 3 and 4, if the value of the household_ is less than ", the sampling timing index is discarded and the receiver will continue to process in the heart of the search window. The next sample. 6. As in the embodiment 3. to 5, the device described in the embodiment, the maximum insulting time sequence read selection is selected as the timing measure of the rough check. The receiver according to any one of the embodiments 3 to 6 further includes a frequency offset estimating unit, and the money shift estimating unit is configured to use a coarse timing set (4 clear) and Receiving ~ (coarse) slightly frequency offset metric, wood generating coarse 8 · The receiver as described in embodiment 7, further comprising: a frequency offset compensation unit, a face rate offset estimation unit and a precision timing second test Hybrid, the received signal used by the solution offset compensation unit, (4). The receiver according to the eighth embodiment, wherein the compensation form of the received signal is generated based on the coarse offset offset generated by the frequency offset estimation unit of 200812271 degrees (1 and the received signal (10), wherein The compensated form received signal is represented as %(4), wherein (4)· Ο 10 · a wireless transmit/receive unit (WTRU), the WTR includes the receiver as described in any of embodiments 1-9. - a receiver that performs hybrid timing and de-skew detection to process the synchronization signal on the lie generated by the net-type general-purpose scalar electrical access (E_UTRA) (10), the receiver comprising: a complex antenna, the configured rib is reduced by at least _ Signal (4), the signal includes a shirt, a synchronous touch (SCH) symbol, and the complex has a complex time domain repeat block 'the towel receives the signal 7V" (4) and the pth sync symbol of the qth antenna in the sampling timing index d Corresponding to; and an autocorrelation unit configured to receive the signal %(4) and output the autocorrelation result of k(4) represented by the butterfly and the power of the reception signal L(4) indicated by Liu. Said The receiver further includes: a precision tuning detection unit configured to generate a precision tuning detection based on a sample of the received signal ^(4) in a compensated form that is cross-correlated with the primary synchronization channel (P-SCH) code sequence The receiver of embodiment 12, further comprising: a coarse timing detection unit configured to generate a coarse timing measure based on the sum of the corpses, wherein the coarse timing detection The unit calculates a time-series detection metric as a ratio to /γθ, and compares the timing detection metric with a detection threshold 77. 16 200812271, 14 The receiver of embodiment 13, wherein (4)/household (the value of the force is greater than or equal to 77, the sampling time series W is regarded as the - candidate detection timing, and the receiver will continue to process the sampling in a search window ^> one as in the embodiments 13 and 14 Ren.

ID

, -...一....,.- The receiver with his inverted, ,, if the value of the class/class is less than ", the sampling timing index is discarded and the receiving n will continue to serve as the t-trace, The next one of the towels. 16: The connector of any of embodiments 13-15, wherein a maximum 嗍/P class sampling timing read selection is generated as a coarsely detected timing metric. The receiver of any one of embodiments D to 16, further comprising: a frequency offset estimation unit configured to measure based on the coarse timing (4 call and receive signal %(4) The receiver according to the embodiment 17 further includes: a received signal %(4) - a frequency offset compensation unit, which is electrically coupled with the speech offset unit and the precision poor timing detection unit. The frequency offset compensation unit is configured to generate the receiver according to the embodiment 18, wherein the received 峨% of the compensated form is heard by the fresh offset estimating unit to generate a _slight offset metric and a received signal And (4) generating, wherein the received signal is represented as ^(4)=k(4)V220-type wireless transmit/receive unit (WTRU), and the stomach & includes the receiver as described in any of embodiments 11-19. 200812271 21 · New communication method for performing mixed timing* ... type universal terrestrial radio access (employee) system production L: channel IS synchronization signal, the financial method includes: processing receiving at least - signal (10), the signal includes at least - Synchronization (S (five) character 'Lai scale having scale complex domain heavy ship blocks which receive signals =% ⑷ sampling timing and the first index ^ ^ same antenna

The step symbol corresponds; P U produces the autocorrelation result of (4) indicated by ·, and the power of the received signal k(4); 乂

According to Qing and Gang, a rough time series metric is generated (the gross H-time series detection metric is calculated as the ratio between _ and ,; and the timing detection metric and (^/)//^/) and the detection threshold 7 for comparison.

The method of embodiment 21, wherein if the value of rotten (four) is greater than or equal to ", the sampling timing index d is regarded as a candidate detection timing. The method of any one of embodiments 21 and 22, wherein if the value of i?(8)/P(4) is less than ", the sampling timing index core is discarded, 24. as in any one of embodiments 21-23 The method described in the embodiment, wherein the sampling timing index j that produces the maximum and the cut/cut is selected as a coarse detection timing metric. The method of any one of embodiments 21 to 24, further comprising: generating a precision tuning detection metric according to a sample of the received signal %(4) in a compensated form that is cross-correlated with the primary synchronization channel (P_SCH) code sequence ( ; 18 200812271

Xd) A rough A and a touch to produce a coarse frequency offset measure (Θ). Wood Block 1', the method described in Example 26, in which the compensation form is connected (4) to the coarse frequency offset metric (4_) and the received signal (d). ej2^^ Representation; ^ / where? Ιϋ u,... ^rP,M) 5 隹 The features and components of the present invention are described in the preferred embodiment ,+, but each feature or component has other features and components. There is or does not combine with other features and elements of the invention or with the methods provided herein. Playing computer programs, software or software, or software is a tangible party: two: shooting the computer program, about the computer ^^= included in the computer-readable storage medium, the chest]% Storage media (10) (4), random access memory (her), temporary crying = memory two guides: _ set, internal hard drive and removable magnetic; it: two-body media, magneto-optical media and CD_R0M month pick Optical media such as magnetic media. Arbitration Multi-Function Disc (DVD) For example, the appropriate processor includes a mouth-and-mouth processor, a traditional processor, a digital signal, a dedicated device, and one or more associated with the body core. ;;), Xi tilt processor, microcontroller, dedicated integrated circuit (hard (four), control (mu) circuit, any kind of integrated power), field programmable inter-array and software phase _$) and / or State machine. Used to stream radio frequency transceivers, 19 200812271 for use in wireless transmit and receive units (WTRUs), user equipment, terminals, base stations, radio network controllers, or any host computer The WTRU can be used in conjunction with modules implemented in hardware and/or software, such as cameras, camera modules, video circuits, speaker phones, vibration devices, speakers, microphones, TV transceivers, hands-free headsets, keyboards, Bluetooth 8 module, frequency modulation (FM) radio unit, liquid crystal display (lcd) display, meta, organic light emitting diode (0LED) display unit, digital music player, media player, video game console Group, Internet browser and 7 or any kind of wireless local area network (WLAN) module. 20 200812271 [Simple description of the diagram] The description can be given in more detail to understand this example, and it is combined with the attached As will be described below with respect to the preferred embodiment, these preferred embodiments are understood as real patterns, wherein: Figure 1 shows the SCH centered at 1.25 MHz; defined and centered at the available bandwidth ... ~ ~ 丨 土 土 频道 channel structure; 乂 频 频 multiplex (0FDM) main synchronization symbol. The sixth figure processed by the step symbol is a flow chart of the thin wheel shirt. 】 105, SCU synchronization channel 3 接收 receiver 500r50 〇 Q antenna 510 signal 515 auto-correlation unit 520 R (d) 525 P (d) 530 coarse timing detection unit 535 coarse timing element 540 frequency offset estimation unit 200812271 545 coarse frequency offset 550 frequency offset compensation unit 555 compensated receive signal 560 P-SCH sequence 565 precision timing detection early 570 precision timing metric ("^0 600 wireless communication method P-SCH main synchronization channel

Claims (1)

200812271 X. Patent application scope: 1 - Receiver for performing hybrid timing and frequency offset detection to process synchronization signals on a channel generated by an evolved universal terrestrial radio access (WJTRA) system, the reception The device includes: a complex antenna for receiving at least one signal %(4), the signal includes (5) a step frequency SCH (SCH) symbol 'and the symbol has a complex time domain repeating block, wherein the received signal %(4) and a sampling timing index f Corresponding to the p-th synchronization symbol of the qth antenna; and - a precision modulation detection unit configured to use a compensation for cross-correlation with a primary synchronization channel (P-SCH) code sequence The form of the received signal is sampled to produce a precision modulation detection metric (^/&). 2. The receiver of claim 1, wherein: the autocorrelation unit is configured to receive the r (q\P,1 and the output is represented by /v" (4) An autocorrelation result and the power of the received signal k(4) expressed by the household. 3 · The receiver according to the second item of the patent scope, further includes: a coarse daily sequence 4 measuring unit, the coarse timing The detection unit is configured to generate a coarse timing metric according to the outline (the squad, wherein the mashed timing detection unit is further configured to calculate - the timing detection metric as a ratio between the continuation and the increment, and the timing Detecting the degree of detection and (Θ/Ρ(0 is compared with a detection threshold value ". 4. The receiver of claim 3, wherein if the value is greater than or equal to; 7, then the The sampling timing index d depends on 23 200812271 as a candidate detection timing, and the search for the next one is received. The receiver continues to process the receiver described in the item - ΓΙΙί利范财3, wherein if the solution_value is less than 77, Then the silk "the timing of fishing I heart and And the receiver will continue to process the next sample in the search window W. 6 · If the receiver is applied for the special fiber IS item 3, the towel produces the largest amount of data/P_ 7. The receiver of the method of claim 3, further comprising: a frequency offset estimation unit, the frequency offset estimation unit being adapted to: the coarse timing measure (' And the relay signal Μ ] to generate a coarse frequency offset metric (a coarse, 〇 8 · the receiver described in claim 7 of the patent scope, further including a frequency offset compensation unit, and frequency offset estimation The unit and the precision timing detecting unit are electrically coupled, and the frequency offset compensating unit is configured to generate a receiving signal k(4) in a compensated form. The receiver according to claim 8, wherein the receiving signal of the compensation form, (4) is And generating, according to the coarse frequency offset metric generated by the frequency offset estimating unit (and the received signal %(4), wherein the received signal of the compensation form is represented as L(4), where %(4):^%(4).e,/2 ; A wireless transmit/receive unit (WTRU) comprising a receiver as claimed in claim 1. 24 200812271 1 for performing hybrid timing and frequency offset check in evolved pass = terrestrial A receiver for processing a synchronous station on a channel generated by a radio access (E_UTRA) system, the interface comprising: a plurality of antennas configured to receive at least one signal %(4), the signal ^ at least one synchronization channel (SCH) symbol The symbol has a daily iron repeating block, wherein the received signal %(4) corresponds to a p-th sync symbol of the qth antenna in a sample and index J; 12 the early element, the autocorrelation unit is configured The power of the autocorrelation result γ of ^(4) and the received signal k(4) represented by one household are received by the receiver. The receiver of claim 11, further comprising: a precision tuning unit configured to receive in accordance with a compensation form associated with the primary synchronization channel (P_SCH) code A sample of the signal, (4) produces a precision tuning detection metric (❼). 13 If the receiver described in claim 12 (4), the method further includes: - the coarse timing detecting unit 'the hybrid timing detecting unit finely generates the coarse timing measure according to the butterfly sum (4: the coarse timing detecting unit in the outer branch) Calculating - the timing detection metric is taken as the ratio between ' and ', and the timing detection metric day (8) / P (4) is compared with a detection threshold; 7. 14. The receiver of claim 13, a If the value of m_ is greater than or equal to ", then the sampling timing index ^ 25 200812271 is - candidate detection timing, and the - the bottom of the search window ^ is sampled. Scope 13 ww, Cai, if the value from d) / P (d) is less than ", then lose = receiver will be _ Liton axis I ^ ^ 16 士 申 申 申 巳 第 第 第 第 第The receiver, the sampling timing index μ is selected as a rough detection. The receiver according to claim 13 of the patent scope, further includes a rate offset estimating unit. Configured with two (:) = slightly timing measure ~ Wood produces a coarse frequency offset metric (匕_). 18. The receiver of claim 17, further comprising: a home rate offset compensation unit electrically coupled with the frequency offset estimation unit and the frequency timing detection unit, the frequency offset compensation The unit is used to generate the received signal %(4) of the compensation form. 19. The receiver of claim 18, wherein the compensation form of the received signal U is based on a D-scale coarse scale offset metric (θ(10),) generated by the frequency offset estimating unit and the received signal ^(4) The received signal of the compensated form is represented as a wireless transmit/receive unit (WTRU) that includes the receiver as described in claim 11. 26 20 200812271 21 Universal land radio county shift detection to process synchronous gas on an evolved type) The ~~ channel generated by the system receives at least - Xinxin (10), : Wanfa includes. (SCHV you pass the test aunt ~ ~ 匕Include at least one sync channel + ΠΛ 唬 具有 具有 具有 具有 具有 具有 复 复 复 复 复 复 复 复 复 复 复 % % % % % % 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收 接收41U^f is the sum of the auto-correlation result of W and the power of the received signal %(4) expressed by , and is generated according to the butterfly and the outline—a rough timing measure (4, where - the timing detection metric is calculated In comparison with the ratio, and the 30-sequence detection metric/household (8) is compared with a detection threshold value. 22 · The method described in claim 21, wherein if the Θ (does ^ (The value of ( is greater than or equal to; 7, the sampling timing index d is regarded as a candidate; detection timing. 23. The method of claim 21, wherein if the value of (8)/P(8) is less than ", discard the sampling timing The method of claim 21, wherein the sampling timing index d that produces the maximum inter-/P interval is selected as a coarsely detected timing metric. 25 · As claimed in claim 21 The method further includes: generating a fine-tuning detection metric according to a received signal of the 200827271 compensation form, and a sample of @, which is cross-correlated with a primary synchronization channel (Ρ-SCH) code sequence; The method of claim 25, further comprising: generating a coarse frequency offset metric based on the coarse timing metric (3 coarse ) and the received signal % (4) (27) as described in claim 26 The method, wherein the received signal of the compensation form, (4) is generated based on the coarse frequency offset metric (and the received signal %(4), wherein the received signal of the compensated form is represented as ~, "(4), wherein. 28