576027 A7 _ B7 五、發明説明（) 發明領域： (請先閲讀背面之注意事項再填寫本頁) 本發明係關於無線通訊之裝置，特別係關於一種適用 於各種不同檢測參數之前置信號檢測平台。 發明背景： 由於頻率的再利用（frequency reuse)性質，分碼多工 接取（code division multiple access，CDMA)系統之頻寬效 率（bandwidth efficiency)比起其他多工接取系統（如分頻 多工接取與分時多工接取）更加優越。此外，細胞規劃（cell planning)在分碼多工接取系統係相當簡單。因此，分碼多 工接取細胞系統將是未來之主流。使用一直序展頻（direct sequence spread spectrum)分碼多工接取技術的分碼多工接 取細胞式系統（cellular systems)大幅地增加通道容量。該 系統於最近之行動通訊系統研究中吸引相當之注意。特別 是第三代行動通訊聯盟（Third generation partnership project，3GPP)寬頻分碼多工接取/分頻雙工（W-CDMA/FDD) 經濟部智慧財產局員工消費合作社印製 系統已被採用於一種用於IMT-2000第三代系統的標準之 〇 在第三代行動通訊聯盟的寬頻分碼多重存取（1-CDMA，Wideband Code Division Multiple Access)系統中， 行動台，如手機，透過基地台搜尋程序（Cell Search)，配 合下鏈（Downlink)同步通道（SCH，Synchronization 2 本紙張尺度適用中國國家標準(CNS)A4規格(210X 297公釐) 576027 A7 B7 五、發明説明（）576027 A7 _ B7 V. Description of the invention () Field of invention: (Please read the notes on the back before filling out this page) The present invention is about a wireless communication device, especially a pre-signal detection platform suitable for various detection parameters . Background of the invention: Due to the frequency reuse nature, the bandwidth efficiency of a code division multiple access (CDMA) system is higher than that of other multiplex access systems (such as frequency division). (Work pick-up and time-sharing multi-work pick-up) are even more superior. In addition, cell planning is quite simple in the code division multiplexing access system. Therefore, the code division multiple access cell system will be the mainstream in the future. A code division multiplexing access cellular system using a direct sequence spread spectrum division code multiplexing access technology significantly increases channel capacity. This system has attracted considerable attention in recent research on mobile communication systems. In particular, the Third Generation Partnership Project (3GPP) wideband code division multiplexed access / frequency division duplex (W-CDMA / FDD) The Intellectual Property Bureau employee ministry co-operative printing system of the Ministry of Economic Affairs has been adopted in A standard for IMT-2000 third-generation systems. In the Wideband Code Division Multiple Access (1-CDMA, Wideband Code Division Multiple Access) system of the Third Generation Mobile Communications Alliance, mobile stations, such as mobile phones, pass through base stations. Cell Search, in conjunction with Downlink synchronization channel (SCH, Synchronization 2 This paper size applies to China National Standard (CNS) A4 specifications (210X 297 mm) 576027 A7 B7 V. Description of the invention ()
Channels)、領航通道（CPICH，Common Pilot Channel)完成 了行動台對基地台同步。但是，由於行動台和基地台間的 距離存在一定程度的不確定性範圍，此不確定性範圍在信 號時序上稱為來回延遲（Round Trip Delay)，其大小由基地 台的涵蓋範圍所決定。因此，基地台仍需對甫上傳的行動 台之訊息進行同步。 在第三代行動通訊聯盟的寬頻分碼多重存取系統系統 中，上鏈（Uplink)的同步是藉由隨機進接通道（RACH， Random Access Channel)中的動作機制完成的。由於採取 時槽模式（Slotted Mode)，時序的不確定範圍可縮小至上述 的來回延遲之内，以簡化搜尋的複雜度。隨機進接通道是 上鏈的傳輸通道，其所接收的範圍包含整個基地台所涵蓋 的區域。隨機進接傳輸分成前置部分（Preamble Part)和訊 息部分（Message Part)。由於前置部分需和其他使用者之前 置部分競爭而有碰撞的風險，故要等到前置部分完成同步 後，行動台才會送出訊息部分。如此可避免訊息部分在前 置部分尚未達成同步前便傳送而對通道產生不必要的額外 干擾。前置部分的初始傳輸功率係由開放迴圈功率控制 (Open Loop Power Control)機制決定的，辅以躍增功率 (Power Ramping)來補償因通道的衰退（Fading)、頻率偏移 (Frequency Offset)、干擾、功率量測誤差等效應所造成的 傳輸功率不足之現象，進而提升傳送訊息的成功機率。 基地台藉由在可能的時間範圍内偵測前置部分的時間 位置，可估計出基地台和行動台間的來回延遲以完成基地 3 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 一裝· -訂· 經濟部智慧財產局員工消費合作社印製 576027 A7 B7 五、發明説明（） 台對行動台的同步。在基地台偵測到由行動台傳送出的前 置信號後，會由同步指引通道(AICH，Acquisition Indicator Channel)送出相對應的回應信號。行動台確認回應信號後， 即可開始訊息部分的傳送。行動台之訊息部分是以1〇毫 秒的資料框為單位作傳送，亦可以有10或20毫秒的訊息， 其長度由上層決定。 一般而言，在直序展頻系統中欲對虛擬亂碼(PN code) 進行擷取，通常是以匹配濾波器（Matched Filter)或是主動 相關器（Active Correlator)辅以平行（Parallel)或串列（Serial) 方式之檢測策略。對於短而非週期性的信號（如隨機進接通 道的前置信號）之擷取，串列主動相關器由於擷取時間過久 而不適合。因此平行主動相關器和匹配濾波器兩者係為隨 機進接前置信號之可能的擷取檢測裝置與方法。 近幾年來，用於解決前置信號之可能的擷取檢測裝 置與方法亦被揭露。見於頒給Durrant等人之美國專利號 碼第 6,317,452 號，標題為” Method and apparatus for wireless spread spectrum communication with preamble sounding gap”，其揭示以平行主動相關器作為前置信號之 檢測策略。另外，見於頒給Scott之美國專利號碼第 6,356,607 號，標題為” Preamble code structure and detection method and apparatus”，其揭示以匹配濾波器作為前置信 號之檢測策略。 其他解決方法亦可見於： 4 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐） (請先閲讀背面之注意事項再填寫本頁) -裝· -、句· 經濟部智慧財產局員工消費合作社印製 576027 A7 ____B7 _ 五、發明説明（） 頒給Uchida等人之美國專利號碼第6,366,603號；及 頒給Scott等人之美國專利號碼第6,363,107號。 ,:·;Γ......--·裝： (請先閲讀背面之注意事項再填窝本頁> 然而，以平行主動相關器作為前置信號之檢測策略 時’所需使用的主動相關器數目和來回延遲的可能範圍大 小成正比。故當基地台涵蓋範圍增大時，，來回延遲的可能 範圍也隨之增大。此時採用平行主動相關器之檢測方式將 會使得檢測器的數量設計過於龐大。但平行主動相關器作 為刖置k號之檢測策略時，較易作分段功率累積來避免檢 測期間過大的相位偏移。另一方面，以匹配濾波器作為作 為刖置信號之檢測策略時，其大小和所要擷取的碼長度成 正比。目前技術所要擷取的前置信號長度為4,096個時片， 匹配濾波器之設計亦過於複雜，並需考慮前置信號之分段 或其他方法。此外，考量在擷取時可能存在的頻率漂移 (Frequency 〇ffset)現象，前置信號可能需作分段擷取，再 對每一段作非調功率累積。因此分段數目又使得兩個檢測 策略在基地台之設計時產生有不同的設計考量。 經濟部智慧財產局員工消費合作社印製 總括來說，前置信號檢測器之設計需考量相當多參 數，如基地台涵蓋範圍（即來回延遲的可能範圍）、分段擷 取的碼長度、採匹配濾波器或平行主動相關器架構之策略 及棟取效能等因素，以設計出最適合該基地台的擷取策略 及架構。然而，當實際地去佈署基地台時，基地台的涵蓋 範圍必定無法像理想中的一樣有固定的半徑，而可能受制 於地形、建築物等因素而有不規則的涵蓋範圍，或在都會 5 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 576027 . A7 B7 五、發明説明（） (請先閲讀背面之注意事項再填寫本頁) 區及郊區也會有不同大小的涵蓋範圍。當環境、涵蓋範圍 改變時，前置信號檢測器之設計因素也需改變。因此如何 去設計出同時適合各種不同基地台所需的前置信號檢測 器，是基地台設計中的一項重要考量。 發明概要： 本發明之主要目的係提供一種前置信號檢測平台，用 於解決上述習知技術所限制之問題。 本發明之另一目的係提供一種前置信號檢測平台，該 前置信號檢測平台可適用於不同基地台之，並根據不同之 檢測參數，如基地台涵蓋範圍、分段擷取長度及數目、擷 取效能所需，重新規劃等，以最適用的策略及架構來進行 前置信號的檢測。 本發明之再一目的係提供一種前置信號檢測平台，能 提供給基地台的前置信號檢測功能一個完整的解決方案。 本發明之又一目的係提供一種通用型檢測單元陣列架 構，可適用於任何分碼多工存取系統中的碼擷取程序，並 可依需要以不同的策略及參數來擷取所需要的碼。 經濟部智慧財產局員工消費合作社印製 為達上述之目的，本發明提供一種前置信號檢測平 台，用於基地台以檢測一來自行動台之前置信號。該前置 信號檢測平台主要包含一均峰功率比解調器、一通用型檢 測器、一哈達碼轉換器、一功率累加器及一前置碼判別器。 該均峰功率比解調器係用於移除該前置信號的均峰功率比 6 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐） 576027 A7 B7 五、發明説明（） 調變項。該通用型檢測器，連接於該均峰功率比解調器， 係用於該前置信號的解擾亂及解展頻等檢測。該哈達碼轉 換器，連接於該通用型檢測器，係用於將該前置信號之碼 字元之功率檢測值對應到該前置信號之複數個識別碼的功 率檢測值。該功率累加器，連接於該哈達碼轉換器，係用 於將該前置信號之識別碼的功率檢測值轉成該前置信號之 識別碼的接收總功率以及該前置碼判別器，連接於該功率 累加器，用於將該前置信號之識別碼之接收總功率和臨界 功率值比較大小。 為達上述之目的，本發明更提供一種通用型檢測器， 用於基地台以檢測一來自行動台之前置信號。該通用型檢 測器包含一檢測單元陣列，具有複數個檢測單元，用以對 前置信號解擾亂及解展頻之檢測；一輸出選擇器，連接於 該檢測單元陣列，係根據所使用的檢測策略及參數值，找 出該檢測單元陣列中之該前置信號之檢測值輸出處；一輸 出緩衝器，連接於該輸出選擇器，係用於將來自該輸出選 擇器之該前置信號之檢測值作適當地暫存，並轉成16個 碼字元檢測值且並列地輸出；一擾亂碼分配器，連接於該 檢測單元陣列，係用於適時地配置擾亂碼至該檢測單元陣 列中之各個檢測單元；以及一資源庫單元，用於根據在各 種檢測策略及參數下，以控制該通用型檢測器中取出適當 數量的該檢測單元以構成適合的檢測架構以進行該前置信 號的檢測。 本發明之特徵係，該通用型檢測器之檢測單元陣列， 7 本紙張尺度適用中國國家標準(CNS)A4規格(210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) 一裝· -· 經濟部智慧財產局員工消費合作社印製 576027 A7 B7 五、發明説明（） 配合相關的週邊電路，如輸出選擇器、輸出緩衝器等可用 來執行不同的檢測策略，如匹配滤波器及主動相關器策 略，以及各種的檢測參數，如檢測長度、分段數目、碼相 位數目等。因此根據本發明所提出之前置信號檢測平台， 可以很有彈性地調整檢測策略及參數以因應不同基地台所 處的真實環境。 發明之詳細說明： 為了方便說明本發明，有需要先介紹前置信號之時槽 架構。現請參考第1圖，其為隨機進接傳輸之時槽架構圖。 隨機進接傳輸是靠著分槽阿囉哈（Slotted ALOHA)的方式傳 送。行動台執行隨機傳輸是從一段已經定義好之時間區間 的起始點來開始傳送，此時間區間稱為進接時槽（Access Slot)，每個資料框的長是10毫秒（ms)，每兩個資料框含 有15個進接時槽，每個進接時槽内共有5，120個時片 (Chip)。所使用的時槽是由上層控制單元在可使用的進接 時槽中隨機任選一個作為前置或訊息傳送之用，即是所謂 的隨機進接傳輸。 來自行動台之每個前置部分長度為4,096個時片，其 中所含的複數值碼（Complex-valued Code)係由長度均為 4,096個時片的識別碼和擾亂碼（Scrambling Code)兩者作時 片對時片相乘後，再乘上複數調變值所構成。該複數調變 值一般而言係為 exp(j( 7Γ /4+ 7Γ k/2))，其中 k=0，l，2，...，4095。 8 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 一裝·Channels) and pilot channels (CPICH, Common Pilot Channel) have completed the synchronization of mobile stations to base stations. However, because there is a certain degree of uncertainty in the distance between the mobile station and the base station, this range of uncertainty is called round trip delay in signal timing, and its size is determined by the coverage of the base station. Therefore, the base station still needs to synchronize the information of the mobile station uploaded by the base station. In the third-generation mobile communications alliance's wideband code division multiple access system system, the synchronization of the uplink (Uplink) is performed by an action mechanism in a random access channel (RACH). Since the slotted mode is adopted, the uncertainty range of the timing can be reduced to the above-mentioned round-trip delay to simplify the complexity of the search. The random access channel is an uplink transmission channel, and its receiving range includes the area covered by the entire base station. The random access transmission is divided into a preamble part and a message part. Because the front part needs to compete with other users' pre-parts and there is a risk of collision, the mobile station will not send the message part until the pre-part is synchronized. In this way, it is possible to avoid unnecessary extra interference to the channel by transmitting the message before the preamble is synchronized. The initial transmission power of the front part is determined by the Open Loop Power Control mechanism, supplemented by Power Ramping to compensate for channel Fading and Frequency Offset. , Interference, power measurement error and other effects caused by insufficient transmission power, which in turn increases the probability of successful message transmission. The base station can estimate the round-trip delay between the base station and the mobile station to complete the base by detecting the time position of the front part within the possible time range. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm). (%) (Please read the notes on the back before filling this page) One Pack · -Order · Printed by the Employee Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 576027 A7 B7 V. Description of the invention () The synchronization of the station to the mobile station. After the base station detects the preamble signal transmitted by the mobile station, it will send a corresponding response signal through the synchronization indicator channel (AICH). After the mobile station confirms the response signal, it can start the transmission of the message part. The message part of the mobile station is transmitted in units of 10 millisecond data frames. There can also be messages of 10 or 20 milliseconds, whose length is determined by the upper layer. Generally speaking, in a direct-sequence spread-spectrum system, to capture the PN code, it is usually a matched filter or an active correlator supplemented by parallel or serial Serial (Serial) detection strategy. For the acquisition of short non-periodic signals (such as the pre-signal of the random access channel), the serial active correlator is not suitable because the acquisition time is too long. Therefore, both the parallel active correlator and the matched filter are possible acquisition and detection devices and methods for randomly accessing the front signal. In recent years, possible acquisition detection devices and methods for solving pre-signals have also been disclosed. See U.S. Patent No. 6,317,452 issued to Durrant et al., Entitled "Method and apparatus for wireless spread spectrum communication with preamble sounding gap", which discloses a detection strategy using a parallel active correlator as a pre-signal. In addition, see US Patent No. 6,356,607 issued to Scott, entitled "Preamble code structure and detection method and apparatus", which discloses a detection strategy using a matched filter as a preamble signal. Other solutions can also be found in: 4 This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling out this page)-Installation ·-, sentence · Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employee Consumer Cooperative 576027 A7 ____B7 _ 5. Description of the invention () US Patent No. 6,366,603 issued to Uchida et al .; and US Patent No. 6,363,107 issued to Scott et al. ,: ·; Γ ......-- · Equipment: (Please read the precautions on the back before filling this page > However, when using a parallel active correlator as a pre-signal detection strategy, 'required use The number of active correlators is proportional to the possible range of the round-trip delay. Therefore, as the coverage of the base station increases, the possible range of the round-trip delay also increases. At this time, the detection method using parallel active correlators will make The number of detectors is too large. However, when the parallel active correlator is used as the detection strategy for the k number, it is easier to perform segmented power accumulation to avoid excessive phase offset during detection. On the other hand, a matched filter is used as the When a signal detection strategy is set, its size is directly proportional to the code length to be captured. The pre-signal length to be captured by the current technology is 4,096 timeslots. The design of the matched filter is too complicated, and it is necessary to consider the pre-amble. Signal segmentation or other methods. In addition, considering the possible frequency drift (Frequency 〇ffset) phenomenon during acquisition, the pre-signal may need to be acquired in sections, and then each section is non-modulated. Accumulation. Therefore, the number of segments makes the two detection strategies have different design considerations in the design of the base station. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economics In summary, the design of the front signal detector requires considerable consideration. Parameters, such as the coverage range of the base station (that is, the possible range of round-trip delay), the code length of the segmented capture, the strategy of adopting a matched filter or a parallel active correlator architecture, and the performance of the building to design the most suitable base Platform acquisition strategy and structure. However, when the base station is actually deployed, the coverage of the base station must not have a fixed radius as ideal, but may be subject to factors such as terrain and buildings. The scope of the rules, or in the metropolis 5 paper size applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) 576027. A7 B7 V. Description of the invention () (Please read the precautions on the back before filling this page ) Districts and suburbs will also have different sizes of coverage. When the environment and coverage changes, the design factors of the front signal detector also need to change. Therefore How to design a front signal detector suitable for various base stations at the same time is an important consideration in the design of the base station. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a front signal detection platform for solving The problem limited by the above-mentioned conventional technology. Another object of the present invention is to provide a pre-signal detection platform, which can be applied to different base stations and according to different detection parameters, such as the coverage range of the base station. , Segmented acquisition length and number, acquisition performance requirements, replanning, etc., to detect the pre-signal with the most applicable strategy and architecture. Another object of the present invention is to provide a pre-signal detection platform that can A complete solution for the pre-signal detection function provided to the base station. Another object of the present invention is to provide a general-purpose detection unit array architecture that can be applied to code acquisition procedures in any code division multiplexing access system. The required codes can be retrieved with different strategies and parameters as required. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs To achieve the above-mentioned object, the present invention provides a pre-signal detection platform for a base station to detect a pre-signal from a mobile station. The pre-signal detection platform mainly includes a peak-to-peak power ratio demodulator, a general-purpose detector, a Hada code converter, a power accumulator, and a pre-code discriminator. The peak-to-peak power ratio demodulator is used to remove the front-to-peak power-to-peak power ratio of the front signal. 6 This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) 576027 A7 B7 V. Description of the invention () Variable. The general-purpose detector is connected to the peak-to-average power ratio demodulator and is used for detection such as descrambling and despreading of the front signal. The Hada code converter is connected to the universal detector, and is used to correspond to the power detection value of the code character of the preamble signal to the power detection value of the plurality of identification codes of the preamble signal. The power accumulator is connected to the Hada code converter, and is used to convert the power detection value of the identification code of the preamble signal into the total received power of the identification code of the preamble signal and the preamble discriminator, connect The power accumulator is used to compare the received total power and the critical power value of the identification code of the pre-signal. To achieve the above object, the present invention further provides a general-purpose detector for a base station to detect a previous signal from a mobile station. The general-purpose detector includes an array of detection units with a plurality of detection units for de-scrambling and de-spreading the detection of the front signal; an output selector connected to the detection unit array, based on the detection used Strategy and parameter values to find the output position of the detection signal of the pre-signal in the detection unit array; an output buffer connected to the output selector is used to convert the pre-signal from the output selector The detection value is temporarily stored appropriately, and converted into 16 codeword detection values and output side by side. A scrambling code distributor connected to the detection unit array is used to timely arrange the scrambling code into the detection unit array. Each detection unit; and a resource library unit for controlling a proper number of the detection units to be taken out of the universal detector according to various detection strategies and parameters to form a suitable detection architecture for the pre-signal Detection. The characteristic of the present invention is that the detection unit array of the universal detector, 7 paper sizes are applicable to China National Standard (CNS) A4 specifications (210X 297 mm) (Please read the precautions on the back before filling this page) ·-· Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives 576027 A7 B7 V. Description of the invention () Cooperate with related peripheral circuits, such as output selector, output buffer, etc., which can be used to implement different detection strategies, such as matched filters and Active correlator strategy, and various detection parameters, such as detection length, number of segments, number of code phases, etc. Therefore, according to the pre-signal detection platform provided by the present invention, the detection strategy and parameters can be adjusted very flexibly to correspond to the real environment where different base stations are located. Detailed description of the invention: In order to facilitate the description of the present invention, it is necessary to first introduce the time slot architecture of the preamble. Please refer to Figure 1, which is a time slot architecture diagram of random access transmission. Random access transmission is based on Slotted ALOHA. The mobile station performs random transmission from the beginning of a defined time interval. This time interval is called Access Slot. The length of each data frame is 10 milliseconds (ms). The two data frames contain 15 access slots, and each access slot contains a total of 5,120 chips. The time slot used is randomly selected by the upper-level control unit in the available time slot for preamble or message transmission, which is the so-called random access transmission. The length of each preamble from the mobile station is 4,096 timeslots. The complex-valued code contained in it consists of both an identification code and a scrambling code that are 4,096 timeslots in length. Multiply the time slice by time slice and multiply by the complex modulation value. The complex modulation value is generally exp (j (7Γ / 4 + 7Γ k / 2)), where k = 0,1,2, ..., 4095. 8 This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)
-、^J 經濟部智慧財產局員工消費合作社印製 576027 A7 B7 五、發明説明（） (請先閲讀背面之注意事項再填寫本頁) 識別碼為原長度為16時片之哈達碼（Hadamard Code)連續 重複256次所產生出來的。乘上複數調變值是為了降低峰 均功率比(Peak-to-Average Power Ratio)。當本來的「雙相 移鍵入（BPSK，Binary Phase Shift Keying)」調變的信號乘 上複數調變值exp(j(7T/4+7rk/2))後，即變成為「九十度 相移鍵入（QPSK，Quadrature Phase Shift Keying)」調變的 複數信號。從實部和虛部形成的座標平面來看，兩個位元 間的變化只會是九十度，而不是原先的一百八十度，亦即 不會經過原點。如此可降低對功率放大器之線性度的要 求，進而使硬體之實現較為容易。 經濟部智慧財產局員工消費合作社印製 現請參考第2圖，其顯示前置信號的檢測流程圖。該 圖將有助於了解本發明之前置信號檢測平台。一前置信號 係來自行動台而被基地台所接收。該前置信號在解展頻及 解擾亂之前，需先將轉相部分移除以利簡化檢測器的設 計。前置信號先經由功率均峰比解調器處理後，分別在實 部和虛部得到巧和气。原來識別碼及擾亂碼之功率將不確 定地分佈在實部'和虛部义，需同時對兩部分作相同的檢 測工作。由於前置信號之實部和虛部所需的後續處理程序 及其所要對應的碼皆相同，故可共用相同的硬體。經由並 列轉串列處理後，複數值X/+*^轉換為兩倍頻率的實數值 X，即實部和虛部值交錯相間地構成一新的信號X。接著對 該信號X進行解擾亂與解展頻處理。該解擾亂與解展頻處 理亦即本發明的特徵，係由檢測單元陣列根據不同之檢測 9 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公瘦) 576027 A7 B7 五、發明説明（） 參數，如所需搜尋的時間範圍、分段的數目及長度、採用 的檢測架構等需求，作適當的重新規劃組態以進行解擾亂 和解展頻。解擾亂和解展頻處理可得到16個碼字元（Code Symbol)所對應之功率檢測值。經過哈達碼轉換處理後， 前置信號之16個碼字元（Code Symbol)所對應之功率檢測 值成為16組識別碼的功率檢測值，其中實部和虛部還是 分開處理的。藉由功率累加器處理，實部和虛部的功率相 加起來成為16組識別碼的（分段)接收功率《。若前置信號 有分段處理時，根據分段的數目，將同一來回延遲的各段 的功率累加起來成為16組識別碼在此來回延遲的接收總 功率&。最後該接收總功率和臨界功率值4比較大小， 若是超過4，且又是此基地台所允許使用的識別碼，即標 示為有效的前置信號接收。將此來回延遲的大小及其識別 碼編號回報給基地台之上層的進接機制，以利回應該行動 台。 此處定義一些將會使用到的名詞及代號。Z :前置信 號的總長度，共4,096個時片，Z = 4〇96 ; Μ :分段檢測的 個數，即將前置信號分為幾段來作檢測；~ :每一段檢測 的長度，以時片為單位；％ :來回延遲的範圍，依據基 地台的涵蓋半徑所計算出來的；在本發明稱之為碼相位 (Code Phase):每一個可能出現前置碼的單位時間點稱為 一瑪相位。 現請參考第3圖，其顯示根據本發明之前置信號檢測 平台之一實施例之結構圖，其主要包含一均峰功率比解調 10 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 裝· -訂. 經濟部智慧財產局員工消費合作社印製 576027 A7 B7 五、發明説明（） 器（PAPR Demodulator) 10、一 通用型檢測器（Generic Detector) 20、一 哈達碼轉換器（Hadamard Transformer) 30、 一功率累加器（Power Accumulator) 40及一前置瑪债測判別 器（Preamble Detection Arbiter) 50等五個模組所組成。該 前置信號檢測平台係可用於基地台以接收一來自行動台之 前置信號。該均峰功率比解調器10係用於將該前置信號 的均峰功率比調變項移除。該通用型檢測器20，連接於該 均峰功率比解調器10,係能在不同的檢測策略及參數值， 用於該前置信號的解擾亂及解展頻等檢測。該哈達碼轉換 器30,連接於該通用型檢測器20,係用於將該前置信號 之16個碼字元（Code Symbol)所對應之功率檢測值轉成為 該前置信號之16組識別碼的功率檢測值。該功率累加器 40，連接於該哈達碼轉換器30，係用於將該前置信號之16 組識別碼的功率檢測值轉成該前置信號之16組識別碼的 接收總功率。該前置碼偵測判別器50，連接於該功率累加 器40，係用於將該前置信號之16組識別碼之接收總功率 和臨界功率值比較大小。在16組識別碼之接收總功率中 若有超過臨界功率值，且又是此基地台所允許使用的識別 碼，即標不該識別碼為有效的前置信號接收。將此來回延 遲的大小及其識別碼編號回報給基地台之上層的進接機 制，以利回應該行動台。 該均峰功率比解調器10係用於將前置信號的均峰功 率比調變項移除。第4圖為第3圖之均峰功率比解調器10 之一實施例之結構圖，其更包含複數個二補數器p’s 本紙張尺度適用中國國家標準(CNS)A4規格(210X 297公釐) (請先閲讀背面之注意事項再填寫本頁) -裝. 經濟部智慧財產局員工消費合作社印製 576027 A7 B7 五、發明説明（）-, ^ J Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 576027 A7 B7 V. Description of the invention () (Please read the notes on the back before filling out this page) The identification code is the original 16-hour Hadamard code. Code). Multiplying the complex modulation value is to reduce the Peak-to-Average Power Ratio. When the original "Binary Phase Shift Keying (BPSK)" modulation signal is multiplied by the complex modulation value exp (j (7T / 4 + 7rk / 2)), it becomes "90-degree phase Shift Keying (QPSK, Quadrature Phase Shift Keying) "modulates the complex signal. Judging from the coordinate plane formed by the real part and the imaginary part, the change between the two bits will only be 90 degrees, not the original 180 degrees, that is, it will not pass through the origin. This can reduce the requirements for the linearity of the power amplifier, thereby making it easier to implement the hardware. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Please refer to Figure 2 for a flowchart of the detection of the front signal. This figure will help to understand the pre-signal detection platform of the present invention. A preamble is received by the base station from the mobile station. Before despreading and descrambling the pre-signal, the phase inversion part must be removed to simplify the design of the detector. The pre-signal is first processed by a power-to-average-ratio demodulator, and Qiaoheqi is obtained in the real and imaginary parts, respectively. The power of the original identification code and the scrambling code will be distributed indefinitely in the real part and the imaginary part, and the same detection work needs to be performed on both parts at the same time. Because the real- and imaginary parts of the preamble require the same subsequent processing procedures and the corresponding codes, they can share the same hardware. After the parallel-to-serial processing, the complex value X / + * ^ is converted into a real value X with twice the frequency, that is, the real and imaginary values are staggered to form a new signal X. The signal X is then descrambled and despread. The descrambling and despreading processing, which is a feature of the present invention, is performed by the detection unit array according to different detections. 9 The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 male thin) 576027 A7 B7 V. Description of the invention ( ) Parameters, such as the time range of the required search, the number and length of segments, the detection architecture used, etc., make appropriate re-planning configurations for descrambling and spreading. De-scrambling and de-spreading processing can obtain power detection values corresponding to 16 code symbols. After Hada code conversion processing, the power detection value corresponding to the 16 code symbols of the preamble signal becomes the power detection value of the 16 groups of identification codes, in which the real part and the imaginary part are processed separately. Through the power accumulator processing, the power of the real part and the imaginary part are added together to form the (received) received power of the 16 groups of identification codes. If the front signal has segment processing, the power of each segment with the same round-trip delay is added up according to the number of segments to form the total received power & Finally, the total received power and the critical power value 4 are relatively large. If it exceeds 4, and it is an identification code allowed by the base station, it is marked as valid pre-signal reception. The magnitude of this round-trip delay and its identification code number are reported back to the access mechanism above the base station in order to respond to the mobile station. Define some terms and codes that will be used here. Z: the total length of the pre-signal, a total of 4,096 time slices, Z = 4096; M: the number of segmented detection, that is, the pre-signal is divided into several segments for detection; ~: the length of each segment of detection, Time slice as the unit;%: the range of the round-trip delay, calculated based on the coverage radius of the base station; in the present invention, it is called the code phase (Code Phase): each unit time point where a preamble may appear is called One ma phase. Please refer to FIG. 3, which shows a structural diagram of an embodiment of a previous signal detection platform according to the present invention, which mainly includes a demodulation of an average peak power ratio. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297). (Mm) (Please read the notes on the back before filling out this page) Installation · -Order. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 576027 A7 B7 V. PAPR Demodulator 10. A universal type Detector (Generic Detector) 20, a Hadamard Transformer 30, a Power Accumulator 40 and a Preamble Detection Arbiter 50 module . The preamble detection platform can be used in a base station to receive a preamble signal from a mobile station. The peak-to-average power ratio demodulator 10 is used to remove the peak-to-average power ratio modulation term of the pre-signal. The universal detector 20 is connected to the peak-to-average power ratio demodulator 10, and can be used to detect the scramble and spread spectrum of the pre-signal in different detection strategies and parameter values. The Hada code converter 30 is connected to the universal detector 20 and is used to convert the power detection value corresponding to the 16 code symbols of the preamble signal into 16 sets of identification of the preamble signal. The power detection value of the code. The power accumulator 40 is connected to the Hada code converter 30, and is used to convert the power detection value of the 16 sets of identification codes of the pre-signal into the total received power of the 16 sets of identification codes of the pre-signal. The preamble detection discriminator 50 is connected to the power accumulator 40 and is used to compare the received total power of the 16 sets of identification codes of the preamble with the critical power value. If the received total power of the 16 sets of identification codes exceeds the critical power value, and it is the identification code allowed by this base station, it means that the identification code should be regarded as a valid pre-signal reception. The size of this round-trip delay and its identification code number are reported to the access mechanism above the base station in order to respond to the mobile station. The peak-to-average power ratio demodulator 10 is used to remove the peak-to-average power ratio modulation term of the front signal. FIG. 4 is a structural diagram of an embodiment of the demodulator 10 of the peak-to-average power ratio of FIG. 3, which further includes a plurality of two's complement p's. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 cm). (%) (Please read the notes on the back before filling this page)-Pack. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 576027 A7 B7 V. Description of Invention ()
Complement) 11、一 反相器（Inverter) 12、複數個加法器 (Adder) 13 及一個並列轉串列器（Parallel-to_Serial Transformer) 14所組成。根據較佳實施例，該複數個二補 數器11係為四個且該複數個反相器12係為二個。其動作 過程如下：該二補數器11、該反相器12、及該加法器13 係用於執行複數運算以解前置信號的均峰功率比調變。其 中％和&為1或-1，故可簡化原先的乘法運算以改用二 補數器。I和A值作為是否作二補數運算的選擇線，若是 其值為1，即= 〃，則不作二補數運算。反之，若是值為 -1時，即〃·(-I—-”，則執行二補數運算。由於前置信號之 實部和虛部所需的後續處理程序及其所要對應的碼皆相 同，故可共用相同的硬體。因此該平行轉串列器14係用 於將該前置信號之實部和虛部A及々交錯重新組成序列輸 入進行下一級，即該通用型檢測器20之檢測。 第5圖為第3圖之該通用型檢測器20之一實施例之 結構圖，其更包含一檢測單元陣列（Detection Unit Array) 21、一輸出選擇器（Output Selector) 22、一輸出緩衝器 (Output Buffer) 23 及一擾亂瑪分配器（Scrambling Code Dispatcher) 24。該檢測單元陣列21係根據匹配濾波器或 主動相關器之檢測策略及不同的參數值下，對該前置信號 解擾亂及解展頻。該輸出選擇器22，連接於該檢測單元陣 列21 ’係根據所使用的檢測策略及參數值，找出該檢測單 元陣列21中之該前置信號之檢測值輪出處，並將其傳送 到該輸出緩衝器23。該輸出緩衝器23，連接於該輸出選 12 本紙張尺度適用中國國家標準(CNS)A4規格(210X 297公釐) (請先閲讀背面之注意事項再填寫本頁) 一裝· 經濟部智慧財產局員工消費合作社印製 576027 A7 B7 五、發明説明（） 擇器22,係用於將來自該輸出選擇器22之該前置信號之 檢測值作適當地暫存，益轉成Μ個碼字元檢測值且並列 地輪出給下一級哈達瑪轉換器30使用。擾亂碼分配器24 , 連接於該檢測單元陣列21 ,係適時地配置擾亂碼至該檢測 單元陣列21中之各個檢測單70 〇 前置信號檢測器之設計需考量相當多參數，如基地台 涵蓋範圍（即來回延遲的町能範圍）、分段擷取的碼長度、 採匹配濾波器或平行主動相關器架·構之策略及擷取效能等 因素，以設計出最適合該基地台的擷取策略及架構。 現請參考第6圖，其說明根據本發明之前置信號檢測 平台之平行主動相關器檢測模式之策略。在該前置信號檢 測平台中，用於解擾亂及解展頻的檢測器架構可以用平行 主動相關器來組成。銀解轉相後的則置信號之實部和虛部 \和气分別送到各個主動相關器。每一個主動相關器負責 -個碼相位檢測工作^由於識別碼字元(⑽Symbo1)是以 重複256次的方式作展頻的，故在主動相關器裡解擾亂後， 解展頻的動作是將相間隔16個時片的解擾亂值、共256 個加總在—起(賴無分段），即可得到16個識別碼字元的 檢測值。-般而言，在此架構下，若有州固主動相關器， 對單-實部或虛部皆有輝主動相關器用以處理。當斤％ 時，所有的碼相位皆玎以分配到一個主動相關器以作為檢 測前置信號，且可檢測的長度為Z，即4,096個時片皆可 檢測。當%時，無法分配給所有碼相位專用的主動相 關器，則碼相位之檢測需採共用的方式’且需使各個碼相 13 $紙張尺^國國家標準(CNS)A4規格(210X 297公釐) (請先閲讀背面之注意事項再填寫本頁) 裝· -訂· 經濟部智慧財產局員工消費合作社印製 576027 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（） 位有相同的檢測長度，以利臨界功率值&的訂定。 現請參考第7圖，其說明根據本發明之前置信號檢測 平台之匹配濾波器檢測模式之策略。在該前置信號檢測平 台中，用於解擾亂及解展頻的檢測器架構可以用匹配濾波 器來建構。在此架構裡，需先依據通道的狀態，經解轉相 後的前置信號決定一段適合的檢測長度&，而以、級之 匹配滤波器（Z'eg-tap Matched Filter)來建立解擾亂程序。匹 配滤波器加總運算的部分如前所述，係分別對16個碼字 元（Code Symbol)作加總，即解展頻動作，可得到16個識 別碼字元的檢測值。 上述兩種檢測模式之策略，有各自的設計考量及其優 缺點。平行主動相關器之設計是取決於#和％的大小關係。 然而，#是在基地台製造出廠時所決定的，而乂則會因所 要佈署的位置、地形、區域、建築物等因素而有不同。因 此在使用平行主動相關器之設計時，前置信號檢測平台應 保留相當的彈性來因應不同的使用需求。另一方面，匹配 濾波器之設計則是取決於通道狀態所決定之檢測長度~。 然而，通道狀態也會因基地台所在的環境而有不同。因此 最適合的前置信號檢測器之架構無法在基地台製造時就確 定。鑑於兩種不同的策略有各自的優缺點，且在使用任一 策略時也需保有一定的彈性以因應不同的操作環境。根據 本發明所提出了前置信號檢測平台，可依上述不同的需 求，執行任一種檢測策略，且其中的各項參數亦是可依需 求而重新設定的。 14 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐） ........·裝.........訂.........· (請先閲讀背面之注意事項再填寫本頁) 576027Complement) 11, an inverter (Inverter) 12, a plurality of adders (Adder) 13 and a parallel-to-serial converter (Parallel-to_Serial Transformer) 14. According to a preferred embodiment, the plurality of twos complements 11 are four and the plurality of inverters 12 are two. The operation process is as follows: the two-complement unit 11, the inverter 12, and the adder 13 are used to perform complex operations to solve the modulation of the peak-to-average power ratio of the preamble signal. The% and & are 1 or -1, so the original multiplication can be simplified to use the two's complement. The values of I and A are used as selection lines for two's complement calculation. If the value is 1, that is, 和, then two's complement calculation is not performed. Conversely, if the value is -1, that is, 〃 · (-I—- ", the two's complement operation is performed. Because the subsequent processing program and the corresponding code required for the real and imaginary parts of the preamble signal are the same Therefore, the same hardware can be shared. Therefore, the parallel-to-serializer 14 is used to interleave the real and imaginary parts A and 々 of the preamble signal into a sequence input for the next stage, that is, the universal detector 20 Fig. 5 is a structural diagram of an embodiment of the universal detector 20 of Fig. 3, which further includes a Detection Unit Array 21, an Output Selector 22, a Output buffer (Output Buffer) 23 and a scrambling code distributor (Scrambling Code Dispatcher) 24. The detection unit array 21 is based on the detection strategy of the matched filter or active correlator and different parameter values, the pre-signal De-scramble and de-spread. The output selector 22 is connected to the detection unit array 21 ′ according to the detection strategy and parameter values used to find the source of the detection value of the pre-signal in the detection unit array 21. And make it Send to the output buffer 23. The output buffer 23 is connected to the output option 12. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the precautions on the back before filling this page ) Yizhuang · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 576027 A7 B7 V. Description of the invention () selector 22 is used to temporarily store the detection value of the pre-signal from the output selector 22 appropriately , It is converted into M code word detection values and used in turn for the next-level Hadamard converter 30. The scrambling code distributor 24 is connected to the detection unit array 21, and the scrambling code is arranged in a timely manner to the detection unit. The design of each detection order 70 in the array 21 requires a number of parameters to be considered, such as the coverage of the base station (that is, the range of round-trip delay), the length of the segmented code, the matched filter or Parallel active correlator framework and construction strategy and acquisition performance to design the acquisition strategy and architecture that are most suitable for the base station. Please refer to FIG. 6, which illustrates the pre-signal detection level according to the present invention. The strategy of the parallel active correlator detection mode. In this pre-signal detection platform, the detector architecture used for descrambling and spread spectrum can be composed of parallel active correlators. After silver phase inversion, the signal is placed The real part and the imaginary part are sent to each active correlator separately. Each active correlator is responsible for the detection of a code phase. ^ Because the identification code character (⑽Symbo1) is spread 256 times, it is After descrambling is performed in the active correlator, the action of despreading is to add the descrambling values of 16 time slices in a total of 256 (from no segmentation) to obtain 16 identification code characters. Detection value. -In general, under this architecture, if there is a state solid active correlator, there is a Hui active correlator for single-real or imaginary parts for processing. When the weight is 100%, all code phases are assigned to an active correlator to detect the preamble signal, and the detectable length is Z, that is, 4,096 time slices can be detected. When it is%, it cannot be assigned to all code phase dedicated active correlators, so the code phase detection needs to use a common method 'and each code phase needs to be 13 $ paper rule ^ National Standard (CNS) A4 specification (210X 297 public) Li) (Please read the notes on the back before filling out this page) Binding · -Order · Printed by the Employee Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 576027 Printed by the Employee Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 Have the same detection length to facilitate the setting of the critical power value &. Please refer to FIG. 7 which illustrates the strategy of the matched filter detection mode of the previous signal detection platform according to the present invention. In this pre-signal detection platform, a detector architecture for descrambling and spreading can be constructed using a matched filter. In this architecture, it is necessary to first determine a suitable detection length & based on the state of the channel and the de-phased pre-signal, and use the Z'eg-tap Matched Filter to establish the solution. Disrupt the procedure. As mentioned above, the matching operation of the matching filter is performed by adding up the 16 code symbols, that is, despreading the spreading operation, to obtain the detection values of 16 identification code characters. The strategies of the above two detection modes have their own design considerations and their advantages and disadvantages. The design of the parallel active correlator depends on the size relationship between # and%. However, # is determined when the base station is manufactured and shipped, and 乂 will vary depending on factors such as the location, terrain, area, and building to be deployed. Therefore, when using the design of parallel active correlators, the front-end signal detection platform should retain considerable flexibility to meet different application requirements. On the other hand, the design of the matched filter depends on the detection length determined by the channel state ~. However, the channel status will also vary depending on the environment in which the base station is located. Therefore, the most suitable pre-signal detector architecture cannot be determined when the base station is manufactured. In view of the advantages and disadvantages of the two different strategies, it is necessary to maintain a certain degree of flexibility when using either strategy to adapt to different operating environments. According to the pre-signal detection platform provided by the present invention, any one of the detection strategies can be executed according to the different requirements mentioned above, and various parameters therein can be reset according to the requirements. 14 This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) .............. install ......... order ... (Please (Please read the notes on the back before filling out this page) 576027
五、發明説明（ 明示簡要說明 (請先聞讀背面之注意事項再場寫本頁) 本發明將配合後附圖示來說明，其中： 第1圖為隨機進接傳輸之時槽架構圖； 第2圖為前置信號的檢測流程圖； 第3圖為根據本發明之前置信號檢測平台之一實施例之 結構圓； 第4圖為第3圖之均峰功率比解調器之一實施例之纟士構 圖； 、、、口 第5圖為第3圖之通用型檢測器之一實施例之結構圖； 第6圖為根據本發明之前置信號檢測平台之平行主動相 關器檢測模式之策略； 第7圖為根據本發明之前置信號檢測平台之匹配濾、波器 檢測模式之策略； 第8圖為第5圖之檢測單元陣列之一實施例之結構圖； 第9圖為第8圖之檢測單元之一實施例之結構圖； 第W圖為第5圖之為輸出選擇器之一實施例之結構圖； 第U圖為第5圖之輸出緩衝器之一實施例之結構圓； 經濟部智慧財產局員工消費合作社印製 第12圖為第π圖之輸出緩衝器之一實施例之梯狀緩衝 器結構圖； 第13圖為第11圖之輸出緩衝器之一實施例之串列轉並 列缓衝器結構圖； 第14圖為第5圖之擾亂碼分配器之一實施例之結構圖； 第15圖為第3圖之哈達碼轉換器之一實施例之結構圖； 24 Λ 说士®明玄捶進(^(：^5)八4規格（210X297公釐> 576027. A7 B7 五、發明説明（） 第16圖為第3圖之功率累加器之一實施例之結構圖； 第17圖為第3圖之前置碼判別器之一實施例之結構圖 圓示符號說明： 10均峰功率比解調器 12反相器 14並列轉串列器 21檢測單元陣列 23輸出緩衝器 30哈達碼轉換器 32具16個加減法的運算網路 33具16欄位的哈達碼暫存器 11二補數器 13加法器 20通用型檢測器 22輸出選擇器 24擾亂碼分配器 31 2對1多工器 40功率累加器 42分段功率累加器 51功率臨界值暫存器 53檢測旗標 210檢測單元 41實虛部相加器 50前置碼偵測判別器 52比較器 54碼相位計數器 211模式多工器 .........·裝.........訂.........· (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 212加減法器 213具32個欄位的位移暫存器 220 %對 1的多工器 230串列轉並列暫存器 231 16對1多工器 233對角式接線 241 1對16解多工器 232 2對1多工器 240擾亂碼產生器 242 1對%解多工器 25 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐) 576027 A7 B7 五、發明説明（） 243 2對1多工器 244單位元暫存器 411平方器 412實部暫存器 413加法器 421加法器 422多攔位暫存器 (請先閲讀背面之注意事項再場寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210X297公釐)V. Description of the invention (Explicit brief description (please read the notes on the back before writing this page) The present invention will be described in conjunction with the accompanying drawings, where: Figure 1 is a time slot architecture diagram of random access transmission; FIG. 2 is a flowchart for detecting a pre-signal; FIG. 3 is a structural circle of an embodiment of a pre-signal detection platform according to the present invention; FIG. 4 is an implementation of one of the peak-to-average power ratio demodulator of FIG. 3 Figure 5 shows the structure of one embodiment of the universal detector shown in Figure 3; Figure 6 shows the parallel active correlator detection mode of the previous signal detection platform according to the present invention. Strategy; FIG. 7 is a strategy of a matched filter and wave filter detection mode of a previous signal detection platform according to the present invention; FIG. 8 is a structural diagram of an embodiment of a detection unit array of FIG. 5; Figure W is a structural diagram of an embodiment of a detection unit; Figure W is a structural diagram of an embodiment of an output selector in Figure 5; Figure U is a structural circle of an embodiment of an output buffer in Figure 5 ; Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs FIG. 12 is a structural diagram of a ladder buffer according to an embodiment of the output buffer of FIG. Π; FIG. 13 is a structural diagram of a serial-to-parallel buffer according to an embodiment of the output buffer of FIG. 11; 14 is a structural diagram of an embodiment of a scrambling code distributor in FIG. 5; FIG. 15 is a structural diagram of an embodiment of a Hada code converter in FIG. 3; 24 Λ Shuo Shi Ming Xuan Yuan Jin (^ (: ^ 5) Eight-four specifications (210X297 mm > 576027. A7 B7 V. Description of the invention () Figure 16 is a structural diagram of an embodiment of the power accumulator of Figure 3; Figure 17 is Figure 3 The structure diagram of an embodiment of the previous code discriminator is shown in the circular symbol description: 10 Average peak power ratio demodulator 12 Inverter 14 Parallel to serializer 21 Detection unit array 23 Output buffer 30 Hada code converter 32 Network with 16 additions and subtractions 33 Hada code registers with 16 columns 11 two's complement 13 adder 20 universal detector 22 output selector 24 scrambling code distributor 31 2 to 1 multiplexer 40 Power Accumulator 42 Segmented Power Accumulator 51 Power Threshold Register 53 Detection Flag 210 Detection Unit 41 Real and Imaginary Adder 50 Set code detection discriminator 52 comparator 54 code phase counter 211 mode multiplexer ......... install ......... order ......... ( (Please read the notes on the back before filling this page) Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 212 Addition and Subtractor 213 32-column shift register 220% to 1 multiplexer 230 serial to parallel Register 231 16 to 1 multiplexer 233 Diagonal wiring 241 1 to 16 demultiplexer 232 2 to 1 multiplexer 240 Scrambling code generator 242 1 to% demultiplexer 25 This paper is applicable to China Standard (CNS) A4 specification (210X297 mm) 576027 A7 B7 V. Description of the invention () 243 2 to 1 multiplexer 244 unit meta register 411 squarer 412 real part register 413 adder 421 adder 422 and more Stop register (Please read the notes on the back before writing this page) Printed on the paper by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper applies the Chinese National Standard (CNS) A4 specification (210X297 mm)