200805933 九、發明說明： 【發明所屬之技術領域】 本揭示案大體而言係關於通信，且更具體言之，本揭示 案係關於用於無線通信系統之傳輸技術。 【先前技術】 廣泛採用無線通信系統來提供諸如語音、視訊、封包資 料二訊息傳遞、廣播等的各種通信服務。此等系統可為能 夠藉由共用可用的系統資源來支援多個使用者之多重存取 系統。該等多重存取系統之實例包含分碼彡重存取（⑶Μ) 系、、充刀時夕重存取（TDMA)系統、分頻多重存取（FDMA) 系統、正交FDMA(0FDMA)系統及單載波叩财⑽损 糸統。 多重存取系統可利用諸如分碼多工（CDM)、分時多工 (TDM)等的一或多個多工機制。系統可經採用且可饲服現 存的終端機。此等多重存取系統可習知地包含在傳輸中佔 用或多個槽之封包。可需要改良系統之效能，同時保持 對於現存終端機之回溯相容性（backward compatibility)。 牛例而5 ，可需要採用諸如多入多出（ΜΙΜΟ)及分域多重 存取（SDMA)之空間技術來藉由開拓使用多個天線所提供 之額外空間維度來改良通量及/或可靠性。 因此’在此項技術中存在對可支援佔用一個以下之習知 曰封L的用於前向鏈路封包之傳輸技術之需要。此外，200805933 IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The present disclosure relates generally to communications, and more particularly to transmission techniques for wireless communication systems. [Prior Art] A wireless communication system is widely used to provide various communication services such as voice, video, packet information, and broadcast. Such systems may be multiple access systems capable of supporting multiple users by sharing available system resources. Examples of such multiple access systems include a code division 彡 re-access ((3) Μ) system, a full-time re-access (TDMA) system, a frequency division multiple access (FDMA) system, and an orthogonal FDMA (0FDMA) system. And single-carrier 叩 ( (10) loss system. Multiple access systems may utilize one or more multiplex mechanisms such as code division multiplexing (CDM), time division multiplexing (TDM), and the like. The system can be used and can be used to feed existing terminals. Such multiple access systems may conventionally include packets that occupy or occupy multiple slots in the transmission. Improvements in system performance may be required while maintaining backward compatibility for existing terminals. For example, space technology such as Multiple Input Multiple Output (ΜΙΜΟ) and Multiple Domain Multiple Access (SDMA) may be needed to improve throughput and/or reliability by exploiting the additional spatial dimensions provided by multiple antennas. Sex. Therefore, there is a need in the art for a transmission technique for forward link packets that can support one of the following conventional L seals. In addition,
I —|i I ' 援空間技術同時保持對現存終端機之回溯相容 性的傳輸技術之需要。 118974.doc 200805933 【發明内容】 本文中描述用於在無線通信系統中有效地發送且接收資 料之技術。該等技術利用與現存設計回溯相容之槽結構。 該等技術包含發送且接收佔用槽結構之一個以下之全槽的 鈿向鏈路封包。该等技術亦選擇性地採用正交分頻多工 (OFDM)來有效地支援空間技術及/或其他進階通信技術。 根據一態樣，一存取點包含一接收器、至少一處理器、 一耦接至該至少一處理器之記憶體，及一經組態以傳輸輸 出波形之發射器。接收器經組態以自一遠端台接收通道資 訊，且該通道資訊包含ACK/NACK(確認/否定確認）資訊。 至少一處理器經組態以產生一包括至少一槽之輸出波形。 母一槽經分段為兩個半槽，其中至少一半槽包含一封包之 一資料單元。至少一處理器亦經組態以解譯ACK/NACK資 訊以確定是否應將資料單元重發至遠端台。 根據另一態樣，一終端機裝置包含至少一處理器、一耦 接至該至少一處理器之記憶體，及一用於傳輸包括 ACK/NACK資訊之通道資訊的發射器。至少一處理器經組 態以處理一包括至少一槽之輸入波形。每一槽經分段為兩 個半槽，其中至少一半槽包含一封包之一資料單元。至少 一處理器進一步經組態以處理該資料單元以確定該資料單 元是否準確，且回應於處理該資料單元之結果而產生 ACK/NACK資訊。 根據另一態樣，一通信系統包含以上均已描述之存取點 及終端機，存取點與終端機彼此通信以在一前向鏈路中通 I18974.doc 200805933 信輸出波形且在一反向鏈路中通信ACK/NACK資訊。 根據又一態樣，一方法包含在一存取點處產生一輸出波 形。該輸出波形包含至少一槽。每一槽經分段為兩個半 槽，其中至少一半槽包含一封包之一資料單元。該方法亦 包含：在一終端機處處理該輸出波形以擷取資料單元，及 處理該資料單元以確定該資料單元是否準確。亦藉由終端 機執行回應於處理資料單元之結果而產生ACK/N ACK資訊 的過程及傳輸包括ACK/NACK資訊之通道資訊的過程。該 方法亦包含在存取點處解譯ACK/NACK資訊以確定是否應 重發該資料單元。 以下進一步詳細地描述本揭示案之各種態樣及特徵。 【實施方式】 本文中所述之傳輸技術可用於諸如CDMA、TDMA、 FDMA、OFDMA及SC-FDMA系統之各種無線通信系統。 經常可互換地使用術語”系統”及"網路”。CDMA系統可實 施諸如cdma2000、通用地面無線電存取（UTRA)、演進之 UTRA(E-UTRA)等的無線電技術。cdma2000涵蓋IS-2000、IS-95 及 IS-856 標準。UTRA 包含寬頻 CDMA(W-CDMA)及低碼片速率（LCR)。TDMA系統可實施諸如全球 行動通信系統（GSM)之無線電技術。OFDMA系統可實施諸 如長期演進（LTE)、IEEE 802.20、快閃 OFDM(Flash· OFDM) 等的無線電技術。UTRA、E-UTRA、GSM及LTE 描述於來自名為"第三代合作夥伴計劃"（3GPP)之組織的文 獻中。cdma2000描述於來自名為"第三代合作夥伴計劃 118974.doc 200805933 2”（3GPP2)之組織的文獻中。此等各種無線電技術及標準 係此項技術中已知的。 為清晰起見，以下對於實施IS-856之高速率封包資料 (HRPD)系統描述該等技術之各種態樣。HRPD亦被稱作演 進資料最佳化（EV-DO)、資料最佳化（DO)、高資料速率 (HDR)等。經常可互換地使用術語nHRPD”及，Έν-DO"。目 前，已標準化HRPD修訂版（Rev.)0、A及B，採用HRPD修 訂版0及A，且正在研發HRPD修訂版C。HRPD修訂版0及A 涵蓋單載波HRPD(lxHRPD)。HRPD修訂版B涵蓋多載波 HRPD且與HRPD修訂版0及A回溯相容。本文中所述之技 術可併入於任何HRPD修訂版中。為清晰起見，在大部分 以下許多描述中使用HRPD術語。 圖1展示一具有多個存取點110及多個終端機120之HRPD 通信系統100。存取點通常為與終端機通信之固定台，且 亦可被稱作基地台、節點B等。每一存取點110為一特別地 理區域提供通信覆蓋，且支援位於覆蓋區域内之終端機之 通信。存取點110可耦接至一為此等存取點提供協調及控 制之系統控制器130。系統控制器130可包含諸如基地台控 制器（BSC)、封包控制功能（PCF)、封包資料伺服節點 (PDSN)等的網路實體。 終端機120可分散於整個系統中，且每一終端機可為固 定或行動終端機。終端機亦可被稱作存取終端機、行動 台、使用者裝備（user equipment)、用戶單元、台等。終端 機可為蜂巢式電話、個人數位助理（PDA)、無線設備 118974.doc 200805933 Y deviee)、琴上型設備、無線數據機、膝上型電腦 等、、s端機可支援任何HRPD修訂版。在HRPD中，終端機 可在任何給定時刻自-存取點接收前向鏈路上之傳輪，且 可在反向鏈路上將傳輸發送至_或多個存取點。前向鍵路 (或下行鏈路)係指自存取點至終端機之通信鏈路，且反向 鏈路（或上行鏈路）係指自終端機至存取點之通信鏈路。 圖2展不一支援HRPD中前向鏈路上之的單載波槽結 構200。傳輸時間線經分割為若干個槽。每一槽具有！… 毫秒（ms)之持續時間且跨越2〇48個碼片。對於mu百萬 碼H少（MCps)之碼片速率，每一碼片具有8ΐ3·8奈秒之 持續時間。每一槽經分割為兩個相同的半槽。每一半槽包 含·⑴一耗用區段（overhead segment)，其包括在半槽中心 處之導頻區段（pilot segment)及在導頻區段兩側上之兩個 媒體存取控制（MAC)區段；及（ii)兩個訊務區a，其在該耗 用區祆兩側上。訊務區段亦可被稱作訊務通道區段、資料 區丰又資料域等。導頻區段載運導頻且具有96碼片之持續 夺門母MAC區段載運信號（例如，反向功率控制（Rpc) 資訊）且具有64碼片之持續時間。每一訊務區段載運訊務 資料（例如，用於特定終端機之單播（unicast)資料、廣播資 料等）且具有400碼片之持續時間。 HRPD修訂版〇、A&B對在訊務區段中發送之資料使用 CDM。一訊務區段可载運用於由一存取點伺服之一或多個 終端機的CDM資料。可基於編碼及調變參數來處理用於該 終端機之訊務資料以產生資料符號，該等編碼及調變參數 118974.doc -10 - 200805933 係根據自每一終端機接收到之通道反饋所確定。可解多工 用於該或該等終端機之資料符號且用16碼片之沃爾什函數 (Walsh function)或碼覆蓋該等資料符號以產生用於訊務區 段之CDM資料。因此使用沃爾什函數在時域中產生CDM 資料。CDM訊務區段係載運CDM資料之訊務區段。 可需要對在訊務區段中發送之資料使用OFDM及/或單載 波分頻多工（SC-FDM)。OFDM及SC-FDM將可用頻寬分割 為多個正交副載波，其亦被稱作音調、區間（bin)等。可用 資料來調變每一副載波。一般而言，藉由OFDM在頻域中 發送調變符號及藉由SC-FDM在時域中發送調變符號。 OFDM及SC-FDM具有某些所要的特性，諸如*易於對抗由 頻率選擇性衰落引起之符號間干擾（ISI)的能力。OFDM亦 可有效地支援ΜΙΜΟ及SDMA，ΜΙΜΟ及SDMA可獨立地應 用於每一副載波上且可因此在頻率選擇通道中提供良好的 效能。為清晰起見，以下描述使用OFDM來發送資料。 可需要支援OFDM，同時保持與HRPD修訂版0、A及B之 回溯相容性。在HRPD中，導頻區段及MAC區段可在任何 時間由所有作用中終端機予以解調變，而訊務區段僅可由 被伺服之終端機予以解調變。因此，可藉由保持導頻及 MAC區段且修改訊務區段而達成回溯相容性。可藉由以具 有400碼片或更少之總持續時間的一或多個OFDM符號替換 一給定的400碼片之訊務區段中之CDM資料而在一 HRPD波 形中發送OFDM資料。 圖3A展示一支援HRPD中之OFDM之單載波槽結構300。 118974.doc • 11 - 200805933 為間單起見’圖3 A中僅展示一個半槽。該半槽包含：（；[)一 耗用區段，其包括一在半槽中心處之96碼片之導頻區段及 在々導頻區段兩側上之兩個64碼片之Mac區段；及（Π)兩 個訊務區段，其在該耗用區段兩側上。一般而言，每一訊 務區段可載運一或多個OFDM符號。在圖3A中所示之實例 中’每一訊務區段載運兩個OFDM符號，且每一 OFDM符 號具有200碼片之持續時間且係在一個為200碼片之OFDM 符號週期中予以發送。 圖3B展示一支援HRPD中之CDM及OFDM之單載波槽結 構302。一半槽包含：（i)一耗用區段，其包括一96碼片之 導頻區段及兩個64碼片之MAC區段；及（ii)兩個訊務區 段，其在該耗用區段兩側上。在一設計中，可為每一訊務 區段選擇CDM或OFDM。在此設計中，在選擇CDM時，每 一訊務區段可載運CDM資料，或在選擇OFDM時，每一訊 務區段可載運一或多個OFDM符號。在其他設計中，一訊 務區段可載運CDM資料與OFDM資料。舉例而言，一訊務 區段可在該訊務區段之一半中載運CDM資料且在該訊務區 段之另一半中载運一或多個〇F DM符號。 一般而言，可基於各種〇FDM符號數字學（numerol〇gy) 或設計而產生OFDM符號。每一 OFDM符號數字學與有關 的參數（諸如OFDM符號持續時間、副載波之數目、循環前 置項長度等）之特定值相關聯。0FDM符號持續時間應為 400碼片訊務區段之整數除數（inte§er divisor)以便充分利 用訊務區段。此外，0FDM符號之樣本速率應為CDM資料 II8974.doc 200805933 之碼片速率的整數倍，以便簡化在存取點及終端機處之處 理。 列出用於HRPD之三個實例OFDM符號數字學。此等數 字學經選擇以與HRPD槽結構及碼片速率相容，以使得⑴ • 在一訊務區段中發送整數數目之OFDM符號且（ii)OFDM符 • 號之樣本速率為CDM資料之碼片速率的整數倍。該等數字 學進一步經選擇以致副載波之總數目（其確定離散傅立葉 變換（DFT)大小）允許有效產生OFDM符號。對於此等數字 學，副載波之總數目並非2的冪而是具有小的質因數。舉 例而言，可以2、3、3及5之質因數獲得90個副載波。小的 質因數可允許有效的混合基數快速傅立葉變換（FFT)實施 以產生OFDM符號。 表1中所示之數字學允許在HRPD前向鏈路波形中有效嵌 入OFDM資料。 表1 參數 正常OFDM符號數 字學1 正常OFDM符號數 字學2 JL常OFDM符號數 字學3 單位 樣本速率 1.2288ΧΠ 1.2288χπ 1.2288χη Msds 副載波之數 a 9〇χη 18〇χ« 36〇χ« ^ 副载波間距 13.65333.. 6.82666.. 3.41333.. ~~ 有用部分 90 (73.2421875 us) 180 (146.484375 μδ) 360 (292.96875 μδ) 碼片 循環前置項 長度 7.5 («6.10 μδ) 16 («13.02 ps) 36 («29.30 μβ) 碼片 窗口化之保 護時間 2.5 (»2.03 μδ) 4 («3.26 μΞ) 4 («3.26 us 1--— 一 碼片 OFDM符號 持續時間 100 ^ 081.38 ⑽ 200 («162.76 μβ) 400 («325.52 ps) —---- 碼片 — ---- 表1中之任何OFDM符號數字學可用來以〇Fdm資料替換 118974.doc • 13 - 200805933 訊務區段中之CDM資料。 此等OFDM符號數字學提供關於都蔔勒擴展（D〇ppla spread)及多路徑延遲容許度的不同取捨。數字學丨與數字 學2及3相比具有最大的副載波間距及最短的循環前置項。 因此，數字學1可提供更佳的都菌勒容許度（歸因於較大的 副載波間距）且可以較低的延遲容許度（歸因於較短的循環 韵置項）為代價致能高速車輛通道中之高頻譜效率。數字 學3與數字學1及2相比具有最小的副載波間距及最長的循 環前置項。因此，數字學3可提供較低的都_勒容許度（歸 因於較小的副載波間距）但較高的延遲容許度（歸因於較長 的循環前置項），其可致能在大的多路徑延遲（諸如由中繼 為誘發之多路徑延遲）存在之情況下的高頻譜效率。 其他OFDM符號數字學亦可用於訊務區段。一般而言， OFDM符號數字學可經選擇以致：⑴〇FDM符號持續時間 及樣本速率分別與HRPD槽格式及碼片速率相容，且 (ii)DFT大小允許有效OFDM符號產生。此可隨後允許以有 效且回溯相容之方式用〇FDM資料替換HRpD前向鏈路波 形中之資料。在每一訊務區段中可用0FDM資料選擇 性地替換CDM資料。可為了回溯相容性而保持耗用區段。 在一設計中，一固定之OFDM符號數字學係用於載運 OFDM貪料之所有訊務區段。終端機可先驗地已知此 OFDM符號數字學且可能夠解調變〇FDM資料而無需關於 數字學之任何信號傳輸。 、 在另一設計中，可組態之OFDM符號數字學可用於_载 118974.doc -14- 200805933 可支援一組數字學（例如 運OFDM資料之給定訊務區段。 列於表1中之數字學）。 不同數字學可用於不同終端機。可基於每— 逼條件為該終端機選擇一適合之數字學。舉例而言，數= 學1可用於高速行進之終端機，數字學3可用於具有大的: 路徑延遲擴展之終端機，且數字學2可用於具有中等速度 及/或中4多路徑延遲擴展之終端機。 、I —|i I ' A space technology that simultaneously maintains the need for transmission techniques for the backward compatibility of existing terminals. 118974.doc 200805933 SUMMARY OF THE INVENTION Techniques for efficiently transmitting and receiving data in a wireless communication system are described herein. These techniques utilize a slot structure that is compatible with existing design tracebacks. The techniques include transmitting and receiving a forward link packet that occupies one or less of the full slot structure. These techniques also selectively employ orthogonal frequency division multiplexing (OFDM) to efficiently support space technology and/or other advanced communication techniques. According to one aspect, an access point includes a receiver, at least one processor, a memory coupled to the at least one processor, and a transmitter configured to transmit an output waveform. The receiver is configured to receive channel information from a remote station and the channel information includes ACK/NACK (acknowledgement/negative acknowledgement) information. At least one processor is configured to generate an output waveform comprising at least one slot. The mother slot is segmented into two half slots, at least half of which contain a data unit of a packet. At least one processor is also configured to interpret the ACK/NACK information to determine if the data unit should be retransmitted to the remote station. According to another aspect, a terminal device includes at least one processor, a memory coupled to the at least one processor, and a transmitter for transmitting channel information including ACK/NACK information. At least one processor is configured to process an input waveform comprising at least one slot. Each slot is segmented into two half slots, at least half of which contain a data unit of one packet. At least one processor is further configured to process the data unit to determine if the data unit is accurate and to generate ACK/NACK information in response to processing the data unit. According to another aspect, a communication system includes the access points and terminals described above, and the access point and the terminal communicate with each other to output an I18974.doc 200805933 signal output waveform in a forward link and in a reverse Communicate ACK/NACK information to the link. According to yet another aspect, a method includes generating an output waveform at an access point. The output waveform contains at least one slot. Each slot is segmented into two half slots, at least half of which contain a data unit of one packet. The method also includes processing the output waveform at a terminal to retrieve the data unit, and processing the data unit to determine whether the data unit is accurate. The process of generating ACK/N ACK information in response to the result of processing the data unit and the process of transmitting channel information including ACK/NACK information are also performed by the terminal. The method also includes interpreting the ACK/NACK information at the access point to determine if the data unit should be retransmitted. Various aspects and features of the present disclosure are described in further detail below. [Embodiment] The transmission techniques described herein are applicable to various wireless communication systems such as CDMA, TDMA, FDMA, OFDMA, and SC-FDMA systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement radio technologies such as cdma2000, Universal Terrestrial Radio Access (UTRA), Evolved UTRA (E-UTRA), etc. cdma2000 covers IS-2000 , IS-95 and IS-856 standards. UTRA includes Wideband CDMA (W-CDMA) and Low Chip Rate (LCR). TDMA systems can implement radio technologies such as the Global System for Mobile Communications (GSM). OFDMA systems can be implemented such as long-term Radio technologies such as Evolution (LTE), IEEE 802.20, Flash OFDM, etc. UTRA, E-UTRA, GSM and LTE are described in an organization named "3rd Generation Partnership Project" (3GPP) In the literature, cdma2000 is described in the literature from an organization named "3rd Generation Partnership Project 118974.doc 200805933 2" (3GPP2). These various radio technologies and standards are known in the art. For the sake of clarity, the following describes various aspects of such techniques for implementing the High Rate Packet Data (HRPD) system of IS-856. HRPD is also known as Evolution Data Optimization (EV-DO), Data Optimization (DO), and High Data Rate (HDR). The terms nHRPD" and Έν-DO" are often used interchangeably. Currently, HRPD revisions (Rev.) 0, A and B have been standardized, HRPD revisions 0 and A have been adopted, and HRPD revision C is being developed. HRPD revision Versions 0 and A cover single-carrier HRPD (lxHRPD). HRPD Revision B covers multi-carrier HRPD and is compatible with HRPD Revision 0 and A. The techniques described herein can be incorporated into any HRPD revision. For the most part, the HRPD terminology is used in most of the following descriptions. Figure 1 shows an HRPD communication system 100 having a plurality of access points 110 and a plurality of terminals 120. The access point is typically a fixed station that communicates with the terminal. It can also be referred to as a base station, a node B, etc. Each access point 110 provides communication coverage for a particular geographic area and supports communication of terminals located within the coverage area. The access point 110 can be coupled to one These access points provide coordination and control of the system controller 130. The system controller 130 can include network entities such as a Base Station Controller (BSC), Packet Control Function (PCF), Packet Data Serving Node (PDSN), and the like. Terminal 120 can be dispersed throughout the system Each terminal can be a fixed or mobile terminal. The terminal can also be called an access terminal, a mobile station, a user equipment, a subscriber unit, a station, etc. The terminal can be a cellular phone. , personal digital assistant (PDA), wireless device 118974.doc 200805933 Y deviee), piano-type device, wireless data machine, laptop, etc., s-end machine can support any HRPD revision. In HRPD, terminal The transport on the forward link can be received from the access point at any given time, and the transmission can be sent to the _ or multiple access points on the reverse link. The forward link (or downlink) is Refers to the communication link from the access point to the terminal, and the reverse link (or uplink) refers to the communication link from the terminal to the access point. Figure 2 shows the support on the forward link in the HRPD. The single carrier slot structure 200. The transmission timeline is divided into a number of slots. Each slot has a duration of .... milliseconds (ms) and spans 2 〇 48 chips. For mu million code H less (MCps) The chip rate, each chip has a duration of 8ΐ3·8 nanoseconds. Divided into two identical half slots. Each half slot contains (1) an overhead segment, which includes a pilot segment at the center of the half slot and on both sides of the pilot segment. Two media access control (MAC) segments; and (ii) two traffic zones a on both sides of the consumption zone. The traffic zone may also be referred to as a traffic channel zone, The data area is abbreviated and the data field, etc. The pilot section carries the pilot and has a 96-chip continuous master MAC segment carrying signal (eg, reverse power control (Rpc) information) and has a duration of 64 chips. . Each traffic segment carries traffic data (e.g., unicast data for a particular terminal, broadcast material, etc.) and has a duration of 400 chips. The HRPD revision, A&B, uses CDM for the material sent in the Traffic Zone. A traffic segment can carry CDM data for one or more terminals served by an access point. The data symbols for the terminal can be processed based on the encoding and modulation parameters to generate data symbols. The encoding and modulation parameters 118974.doc -10 - 200805933 are based on channel feedback received from each terminal. determine. The multiplexable data symbol for the terminal or the terminals is overwritten with a 16-chip Walsh function or code to generate CDM data for the traffic segment. Therefore, the Walsh function is used to generate CDM data in the time domain. The CDM Traffic Zone is the traffic section that carries CDM data. It may be desirable to use OFDM and/or Single Carrier Frequency Division Multiplexing (SC-FDM) for data transmitted in the traffic section. OFDM and SC-FDM partition the available bandwidth into a plurality of orthogonal subcarriers, which are also referred to as tones, bins, and the like. The data can be used to modulate each subcarrier. In general, modulation symbols are transmitted in the frequency domain by OFDM and modulated symbols are transmitted in the time domain by SC-FDM. OFDM and SC-FDM have certain desirable characteristics, such as * the ability to easily withstand inter-symbol interference (ISI) caused by frequency selective fading. OFDM can also effectively support ΜΙΜΟ and SDMA, and SDMA can be applied independently to each subcarrier and can therefore provide good performance in the frequency selective channel. For clarity, the following description uses OFDM to transmit data. It may be necessary to support OFDM while maintaining backward compatibility with HRPD revisions 0, A, and B. In HRPD, the pilot and MAC segments can be demodulated by all active terminals at any time, and the traffic segments can only be demodulated by the servoed terminal. Therefore, backtracking compatibility can be achieved by maintaining the pilot and MAC segments and modifying the traffic segments. The OFDM data may be transmitted in an HRPD waveform by replacing the CDM data in a given 400 chip traffic segment with one or more OFDM symbols having a total duration of 400 chips or less. 3A shows a single carrier slot structure 300 that supports OFDM in HRPD. 118974.doc • 11 - 200805933 For the sake of the single-single, only one half-slot is shown in Figure 3A. The half slot includes: (; [) a consumable segment comprising a 96-chip pilot segment at the center of the half-slot and two 64-chip Macs on either side of the 々 pilot segment Section; and (Π) two traffic segments on either side of the consumable segment. In general, each traffic segment can carry one or more OFDM symbols. In the example shown in Figure 3A, each traffic segment carries two OFDM symbols, and each OFDM symbol has a duration of 200 chips and is transmitted in an OFDM symbol period of 200 chips. Figure 3B shows a single carrier slot structure 302 that supports CDM and OFDM in HRPD. The half slot contains: (i) a consumption segment including a 96-chip pilot segment and two 64-chip MAC segments; and (ii) two traffic segments at which Use on both sides of the section. In one design, CDM or OFDM can be selected for each traffic segment. In this design, each CDC data can be carried by each of the traffic segments when CDM is selected, or one or more OFDM symbols can be carried by each of the traffic segments when OFDM is selected. In other designs, a traffic segment can carry CDM data and OFDM data. For example, a traffic segment can carry CDM data in one half of the traffic segment and carry one or more 〇F DM symbols in the other half of the traffic segment. In general, OFDM symbols can be generated based on various 〇FDM symbol numerology or designs. Each OFDM symbol is digitally associated with a particular value of a related parameter, such as OFDM symbol duration, number of subcarriers, loop preamble length, and the like. The 0FDM symbol duration should be an integer divisor of the 400 chip traffic segment (inte§er divisor) to fully utilize the traffic segment. In addition, the sample rate of the 0FDM symbol should be an integer multiple of the chip rate of CDM data II8974.doc 200805933 to simplify the handling at the access point and the terminal. Three example OFDM symbolic digits for HRPD are listed. These digital studies are selected to be compatible with the HRPD slot structure and chip rate such that (1) • an integer number of OFDM symbols are transmitted in a traffic segment and (ii) the sample rate of the OFDM symbol is CDM data. An integer multiple of the chip rate. The digits are further selected such that the total number of subcarriers (which determines the discrete Fourier transform (DFT) size) allows efficient generation of OFDM symbols. For these digits, the total number of subcarriers is not a power of two but a small prime factor. For example, 90 subcarriers can be obtained with a quality factor of 2, 3, 3, and 5. A small prime factor may allow for efficient mixed base fast Fourier transform (FFT) implementation to produce OFDM symbols. The numerology shown in Table 1 allows for the efficient embedding of OFDM data in the HRPD forward link waveform. Table 1 Parameter Normal OFDM Symbol Digitology 1 Normal OFDM Symbol Digitology 2 JL Constant OFDM Symbol Digitology 3 Unit Sample Rate 1.2288ΧΠ 1.2288χπ 1.2288χη Msds Number of Subcarriers a 9〇χη 18〇χ« 36〇χ« ^ Carrier spacing 13.65333.. 6.82666.. 3.41333.. ~~ Useful part 90 (73.2421875 us) 180 (146.484375 μδ) 360 (292.96875 μδ) Chip loop preamble length 7.5 («6.10 μδ) 16 («13.02 ps) 36 («29.30 μβ) Chip window protection time 2.5 (»2.03 μδ) 4 («3.26 μΞ) 4 («3.26 us 1--- one chip OFDM symbol duration 100 ^ 081.38 (10) 200 («162.76 μβ) 400 («325.52 ps) —----chips — ---- Any OFDM symbolic digits in Table 1 can be used to replace CDM data in the 118974.doc • 13 - 200805933 traffic section with 〇Fdm data. These OFDM symbolic digits provide different trade-offs for D〇ppla spread and multipath delay tolerance. Digital 丨 has the largest subcarrier spacing and the shortest cycle before digital 2 and 3. Therefore, Digital Science 1 can provide better Lean tolerance (due to larger subcarrier spacing) and high spectral efficiency in high speed vehicle lanes at the expense of lower delay tolerance (due to shorter cyclic probabilities). Compared with Digital Studies 1 and 2, it has the smallest subcarrier spacing and the longest cyclic preamble. Therefore, Digital 3 can provide a lower _ 勒 tolerance (due to the smaller subcarrier spacing) but High delay tolerance (due to longer cyclic preambles), which can result in high spectral efficiency in the presence of large multipath delays, such as multipath delays induced by relays. OFDM symbolic digitization can also be used for the traffic segment. In general, OFDM symbolic digitization can be selected such that: (1) 〇 FDM symbol duration and sample rate are compatible with HRPD slot format and chip rate, respectively, and (ii) The DFT size allows for efficient OFDM symbol generation. This can then allow the data in the HRpD forward link waveform to be replaced with 〇FDM data in an efficient and retrospective compatible manner. Selectively replaceable with 0FDM data in each traffic segment CDM information. Can be While maintaining backwards compatibility consumed in sections. In one design, a fixed number of OFDM symbols used for all TVM Department greedy feed section of OFDM carrier. The terminal can know this OFDM symbolic digits a priori and can demodulate the transformed FDM data without any signal transmission with respect to digital. In another design, configurable OFDM symbolic digits can be used in _118974.doc -14- 200805933 to support a set of digits (eg, a given traffic segment for OFDM data. Listed in Table 1) Digital science). Different digital studies can be used for different terminals. A suitable digital science can be selected for the terminal based on each of the conditions. For example, number = 1 can be used for high speed traveling terminals, Digital 3 can be used for terminals with large: path delay extension, and Digital 2 can be used for medium speed and / or medium 4 multipath delay extension Terminal. ,
圖4展示一支援HRPD中之CDM之多載波槽結構4〇〇。在 HRPD修訂版b中，多個lxHRpD波形可在頻域中經多工以 獲得一填補一給定頻譜配置之多載波11尺1>13波形。在圖4中 所示之實例中，用於三個HRPD載波1、2及3之三個 lxHRPD波形在5 MHz頻譜配置中經頻率多工。每一 IxHRPD波形係為了 一不同載波產生且佔用大致125 MHz。二個lxHRPD波形佔用大致3χ1 ·25 = 3·75 MHz，其可 在5 MHz頻譜配置之兩個邊緣處留下相對大之保護帶。 HRPD中並未規定相鄰載波之間的間距但通常選擇該間距 以在相鄰的1 xHRPD波形之間提供小的過渡帶。 如圖4中所示，多載波HRPD波形包含用於每一半槽中之 三個載波的三個耗用區段及六個訊務區段。如圖4中所 示，每一訊務區段可載運CDM資料。多載波HRPD波形中 的每一訊務區段中之CDM資料可由OFDM資料選擇性地替 換。此外，多載波HRPD波形中之訊務及耗用區段可經排 列以有效地利用頻譜配置。 圖5展示一支援HRPD中之CDM及OFDM之多載波槽結構 118974.doc -15- 200805933 5 00。在圖5中所示之實例中，在5 MHz頻譜配置中發送三 個HRPD載波且盡可能緊密地間隔該·等載波以便改良頻寬 利用。對於每一HRPD載波，每一半槽包含··⑴一耗用區 段，其包括導頻區段及MAC區段；及（ii)兩個訊務區段， ‘ 其在該耗用區段兩侧上。HRPD載波1包含在耗用區段左側 ‘ 及右側之訊務區段（TS)la及lb，HRPD載波2包含在耗用區 段左側及右側之訊務區段2a及2b，且HRPD載波3包含在耗 用區段左側及右側之訊務區段3a及3b。用於每一 HRPD載 ® 波之每一訊務區段可載運CDM資料或OFDM資料。 對於5 MHz頻譜配置中之3載波HRPD，如圖5中所示， 可以4x1.2288=4.9152 Mcps〇=4)之樣本速率產生OFDM符 號。OFDM符號於是可佔用5 MHz頻譜配置的大部分。或 者，可以3 X 1.2288=3.6864 Mcps(w=3)之樣本速率產生 OFDM符號，其未展示於圖5中。 可在一訊務時間間隔中為每一 OFDM符號週期產生一 _ OFDM符號。每一 OFDM符號週期在表1中之OFDM符號數 字學2的情況下為200碼片。 OFDM符號可在⑴對應於用於OFDM之訊務區段的副載 . 波及（ii)在頻譜配置之兩個邊緣處的剩餘可用副載波上載 運OFDM資料。亦可使OFDM符號在對應於具有CDM資料 之訊務區段的副載波上為空值。OFDM符號可因此載運可 選擇性地替換用於零或多個HRPD載波之零或多個訊務區 段中之CDM資料的OFDM資料。OFDM允許對5 MHz頻譜 配置中之可用頻譜的更佳利用。 118974.doc -16- 200805933 可基於諸如用於CDM之脈衝成形濾波器、產生CDM資 料及/或OFDM資料之方式等的各種因素而選擇HRPD載波 之間的間距。可在頻譜配置之兩個邊緣處使用保護副載 波，該等保護副載波為不具有傳輸之副載波。可基於混附 ， 發射（spurious emission)要求及/或其他因素而選擇在帶邊 . 緣處之保護副載波之數目。 圖6展示一支援HRPD中之CDM及OFDM且更充分地利用 可用頻寬之多載波槽結構600。槽結構600包含圖5中之槽 ⑩ 結構500中的所有訊務區段及耗用區段。槽結構600進一步 包含在未用於224碼片之耗用時間間隔中之導頻區段或 MAC區段之頻譜部分中的OFDM資料。 可為涵蓋導頻區段及MAC區段之224碼片之耗用時間間 隔界定額外的OFDM符號數字學。此等數字學可經選擇以 致⑴可在耗用時間間隔中發送整數數目個OFDM符號且 (ii)OFDM符號之樣本速率為碼片速率之整數倍。列出用於 0 耗用時間間隔之兩個實例OFDM符號數字學。在耗用時間 間隔中發送之OFDM符號被稱作”長"OFDM符號，因為其 持續時間比在表1中之對應數字學的情況下在訊務時間間 . 隔中發送之’’正常’’OFDM符號的持續時間長。 表2 參數 長OFDM符號數 字學1 長OFDM符號數 字學2 單位 樣本速率 1.2288χπ 1.2288X" Msps 副載波之數目 ΙΟΟχ/7 20〇χη 副載波間距 12.288.. 6.144.. KHz 有用部分 100 (-81.38 με) 200 Η 62.76 ps) 碼片 118974.doc -17- 200805933 循環前置項長度 8 (-6.51 μ8) 20 (-16.28 μ8) 碼片 窗口化之保護時 間 4 (-3.26 μ$) 4 (-3.26 μ8) 碼片 OFDM符號持續 時間 112 (二91.15 ps) 224 (-182.29 μ8 碼片 其他OFDM符號數字學亦可用於耗用時間間隔。一般而 言，OFDM符號數字學可經選擇以致（i)OFDM符號持續時 間及樣本速率分別與HRPD槽格式及碼片速率相容，且 (ii)DFT大小允許有效OFDM符號產生。 如以下所述，可在耗用時間間隔中為每一 OFDM符號週 期產生一 OFDM符號。OFDM符號可在對應於頻寬之未用 於導頻區段及MAC區段之部分之副載波中載運OFDM資 料。可使OFDM符號在對應於導頻區段及MAC區段之副載 波上為空值。可藉由在耗用時間間隔中使用一或多個長 OFDM符號來改良總頻譜利用。 在圖5及6中所示之設計中，可為訊務區段界定四個邏輯 通道Chi、Ch2、Ch3及Ch4。此等邏輯通道亦可被稱作資 料通道、訊務通道等。邏輯通道Chi可包含在HRPD載波1 上發送之訊務區段la及lb，邏輯通道Ch2可包含在HRPD載 波2上發送之訊務區段2a及2b，邏輯通道Ch3可包含在 HRPD載波3上發送之訊務區段3a及3 b，且邏輯通道Ch4可 包含在剩餘可用頻譜上發送之訊務區段4a、4b及4c。邏輯 通道Chi、Ch2及Ch3因此對應於分別與HRPD載波1、2及3 重疊之副載波。邏輯通道Chi、Ch2及Ch3可在每一槽、每 一半槽等中在CDM與OFDM之間切換。邏輯通道CM不具 有相關聯之HRPD載波且可用以改良頻寬利用。邏輯通道 I18974.doc -18- 200805933Figure 4 shows a multi-carrier slot structure that supports CDM in HRPD. In HRPD Revision b, multiple lxHRpD waveforms can be multiplexed in the frequency domain to obtain a multi-carrier 11 1 1 > 13 waveform that fills a given spectrum configuration. In the example shown in Figure 4, the three lxHRPD waveforms for the three HRPD carriers 1, 2, and 3 are frequency multiplexed in a 5 MHz spectrum configuration. Each IxHRPD waveform is generated for a different carrier and occupies approximately 125 MHz. The two lxHRPD waveforms occupy approximately 3χ1 ·25 = 3·75 MHz, which leaves a relatively large guard band at the two edges of the 5 MHz spectrum configuration. The spacing between adjacent carriers is not specified in the HRPD but is typically chosen to provide a small transition band between adjacent 1 x HRPD waveforms. As shown in Figure 4, the multi-carrier HRPD waveform contains three consumption segments and six traffic segments for three of the carriers in each half slot. As shown in Figure 4, each traffic segment can carry CDM data. The CDM data in each of the multi-carrier HRPD waveforms can be selectively replaced by OFDM data. In addition, the traffic and consumption segments in the multi-carrier HRPD waveform can be arranged to efficiently utilize the spectrum configuration. Figure 5 shows a multi-carrier slot structure supporting CDM and OFDM in HRPD. 118974.doc -15- 200805933 5 00. In the example shown in Figure 5, three HRPD carriers are transmitted in a 5 MHz spectrum configuration and the equal-equivalent carriers are spaced as closely as possible to improve bandwidth utilization. For each HRPD carrier, each half slot contains a (1) consumption section including a pilot section and a MAC section; and (ii) two traffic sections, 'which are in the consumption section two On the side. The HRPD carrier 1 is included in the traffic section (TS) la and lb on the left side and the right side of the consumption section, and the HRPD carrier 2 is included in the traffic sections 2a and 2b on the left and right sides of the consumption section, and the HRPD carrier 3 The traffic segments 3a and 3b included on the left and right sides of the consumption section. Each of the traffic segments for each HRPD carrier wave can carry CDM data or OFDM data. For a 3-carrier HRPD in a 5 MHz spectrum configuration, as shown in Figure 5, an OFDM symbol can be generated at a sample rate of 4x1.2288 = 4.9152 Mcps 〇 = 4). The OFDM symbol can then occupy most of the 5 MHz spectrum configuration. Alternatively, an OFDM symbol can be generated at a sample rate of 3 X 1.2288 = 3.6864 Mcps (w = 3), which is not shown in Figure 5. An _ OFDM symbol can be generated for each OFDM symbol period in a traffic time interval. Each OFDM symbol period is 200 chips in the case of OFDM symbol number 2 in Table 1. The OFDM symbols may carry OFDM data in (1) corresponding to the subcarriers of the traffic section for OFDM. (ii) the remaining available subcarriers at both edges of the spectrum configuration. The OFDM symbol can also be made to have a null value on the subcarrier corresponding to the traffic segment having the CDM data. The OFDM symbols can thus carry OFDM data that can selectively replace CDM data for zero or more traffic segments of zero or more HRPD carriers. OFDM allows for better utilization of the available spectrum in a 5 MHz spectrum configuration. 118974.doc -16- 200805933 The spacing between HRPD carriers can be selected based on various factors such as pulse shaping filters for CDM, methods of generating CDM data and/or OFDM data, and the like. The guard subcarriers can be used at both edges of the spectrum configuration, and the guard subcarriers are subcarriers that do not have transmission. The number of guard subcarriers at the edge of the band can be selected based on the spurious emission requirements and/or other factors. 6 shows a multi-carrier slot structure 600 that supports CDM and OFDM in HRPD and more fully utilizes available bandwidth. Slot structure 600 includes all of the traffic segments and consumable segments in slot 10 structure 500 of FIG. The slot structure 600 further includes OFDM data in a portion of the spectrum of the pilot or MAC segments that are not used in the elapsed time interval of 224 chips. Additional OFDM symbolic digits may be defined for the elapsed time interval covering the 224 chips of the pilot and MAC segments. Such numerology may be selected such that (1) an integer number of OFDM symbols can be transmitted in the elapsed time interval and (ii) the sample rate of the OFDM symbol is an integer multiple of the chip rate. Two examples of OFDM symbol numerology for the 0 elapsed time interval are listed. The OFDM symbols transmitted in the elapsed time interval are referred to as "long" OFDM symbols because their duration is between the traffic times than the corresponding digital studies in Table 1. The 'normal' sent in the interval 'The duration of the OFDM symbol is long. Table 2 Parameter Long OFDM Symbol Digitology 1 Long OFDM Symbol Digitology 2 Unit sample rate 1.2288 χ π 1.2288X" Msps Number of subcarriers ΙΟΟχ /7 20〇χη Subcarrier spacing 12.288.. 6.144. KHz Useful part 100 (-81.38 με) 200 Η 62.76 ps) Chip 118974.doc -17- 200805933 Cyclic preamble length 8 (-6.51 μ8) 20 (-16.28 μ8) Chip window protection time 4 ( -3.26 μ$) 4 (-3.26 μ8) Chip OFDM symbol duration 112 (two 91.15 ps) 224 (-182.29 μ8 chips Other OFDM symbol digits can also be used to consume time intervals. In general, OFDM symbol numbers The learning may be selected such that (i) OFDM symbol duration and sample rate are compatible with HRPD slot format and chip rate, respectively, and (ii) DFT size allows for efficient OFDM symbol generation. As described below, at time consuming intervals For each OFDM The symbol period produces an OFDM symbol. The OFDM symbol can carry OFDM data in subcarriers corresponding to portions of the bandwidth that are not used for the pilot and MAC segments. The OFDM symbols can be associated with the pilot segment and the MAC. The subcarriers of the sector are null. The total spectrum utilization can be improved by using one or more long OFDM symbols in the elapsed time interval. In the design shown in Figures 5 and 6, it can be a traffic area. The segment defines four logical channels Chi, Ch2, Ch3, and Ch4. These logical channels may also be referred to as data channels, traffic channels, etc. The logical channel Chi may include the traffic segments la and lb transmitted on the HRPD carrier 1. The logical channel Ch2 may include the traffic segments 2a and 2b transmitted on the HRPD carrier 2, the logical channel Ch3 may include the traffic segments 3a and 3b transmitted on the HRPD carrier 3, and the logical channel Ch4 may be included in the remaining The traffic segments 4a, 4b, and 4c transmitted on the available spectrum. The logical channels Chi, Ch2, and Ch3 thus correspond to subcarriers respectively overlapping with the HRPD carriers 1, 2, and 3. The logical channels Chi, Ch2, and Ch3 may be in each Switch between CDM and OFDM in slot, every half slot, etc. Logical channel CM is not It has an associated HRPD carrier and can be used to improve bandwidth utilization. Logical Channels I18974.doc -18- 200805933
Ch4亦可經分割為兩個邏輯次通道，例如，下部Ch4及上 部Ch4，且每一邏輯次通道包含一組相連的副載波。可獨 立地排程該等邏輯通道。舉例而言，每一邏輯通道可基於 自用於彼邏輯通道之終端機接收到的通道品質反饋予以排 、 程。 . 一般而言，可在一給定頻譜配置中發送任何數目個 HRPD載波。對於每一 HRPD載波，每一訊務區段可載運 CDM資料或OFDM資料。亦可未由HRPD載波使用之剩餘 ® 可用頻譜中發送OFDM資料。 圖7展示一支援用於5 MHz頻譜配置中之單一 HRPD載波 之OFDM及CDM的槽結構700。在圖7中所示之實例中，單 一 HRPD載波位於5 MHz頻譜配置之一邊緣附近。如以上 在圖2至6中所述，在半槽之中心產生且發送用於HRPD載 波之導頻區段及MAC區段。1111?0載波之每一訊務區段可 載運CDM資料或OFDM資料。 0 — OFDM頻譜可經界定以包含頻譜配置中之所有可用頻 譜（HRPD載波除外）。在圖7中所示之實例中，OFDM頻譜 包含在HRPD載波兩側上之可用頻譜。正常OFDM符號及 . 長OFDM符號可經擴展且用以在OFDM頻譜中載運資料。 可以任何方式（例如，使用通常用於僅採用OFDM或 OFDMA之系統中的任何技術）在OFDM頻譜中發送訊務資 料、信號傳輸及導頻。舉例而言5可在任何副載波及符號 週期上以任何方式發送導頻及信號傳輸。亦可將可用之副 載波及符號週期配置給任何數目個終端機，且可以任何方 118974.doc •19- 200805933 式將資料發送至已排程之終端機。 。 在圖7中所示之設計中，界定兩個邏輯通道1 #區段la及 邏輯通道Chi包含在HRPD載波1上發送之訊私° a % 1訊務區段 lb，且邏輯通道Ch2包含在OFDM頻譜上發I ,Ch4 can also be split into two logical sub-channels, for example, lower Ch4 and upper Ch4, and each logical sub-channel contains a set of connected sub-carriers. These logical channels can be scheduled independently. For example, each logical channel can be scheduled based on channel quality feedback received from the terminal used for the logical channel. In general, any number of HRPD carriers can be transmitted in a given spectrum configuration. For each HRPD carrier, each traffic segment can carry CDM data or OFDM data. The OFDM data may also be transmitted in the remaining spectrum of the available spectrum that is not used by the HRPD carrier. Figure 7 shows a slot structure 700 that supports OFDM and CDM for a single HRPD carrier in a 5 MHz spectrum configuration. In the example shown in Figure 7, a single HRPD carrier is located near one edge of the 5 MHz spectrum configuration. As described above in Figures 2 through 6, the pilot and MAC segments for the HRPD carrier are generated and transmitted at the center of the half-slot. Each of the 1111?0 carrier segments can carry CDM data or OFDM data. 0 – The OFDM spectrum can be defined to include all available spectrum in the spectrum configuration (except for HRPD carriers). In the example shown in Figure 7, the OFDM spectrum contains the available spectrum on both sides of the HRPD carrier. Normal OFDM symbols and . Long OFDM symbols can be extended and used to carry data in the OFDM spectrum. The traffic data, signal transmissions, and pilots can be transmitted in the OFDM spectrum in any manner (e.g., using any of the techniques typically used in systems employing only OFDM or OFDMA). For example, 5 can transmit pilot and signal transmissions in any manner on any subcarrier and symbol period. The available subcarriers and symbol periods can also be configured for any number of terminals, and any data can be sent to the scheduled terminal at 118974.doc •19-200805933. . In the design shown in FIG. 7, two logical channels 1 #section la and logical channel Chi are defined to contain the information transmitted on the HRPD carrier 1 a % 1 traffic segment lb, and the logical channel Ch2 is included in I is sent on the OFDM spectrum.
，冰變中在COM 2a至2f。邏輯通道chi可在每一槽、每〆半槽f &你HRpD載波 與OFDM之間切換。邏輯通道Ch2並不限於任何 ΠΛ/ί資料。< 且可以純OFDM模式予以操作以便僅載運0FDJV Μ ^ ^ 在邏輯通道Ch2上以任何方式用OFDM發送訊務資料 號傳輸及/或導頻。 圖8展示一支援5 MHz頻譜配置中之OFDM的HRPD槽結 構800。在圖8中所示之實例中，頻譜配置不含有HRPD載 波。正常OFDM符號及長OFDM符號可用以在整個可用頻 譜（在帶邊緣處之保護次帶除外）中發送資料。邏輯通道 Chi可經界定以涵蓋整個可用頻譜。可操作邏輯通道 Chl(仿佛其係用於OFDM/OFDMA系統般）且其可併有來自 諸如快閃 OFDM®、IEEE 802.20、LTE 等的其他 OFDM/ OFDMA技術之設計元素。邏輯通道Chi中之時間頻率資源 可經分割為用於訊務資料之訊務資源、用於信號傳輸之信 號傳輸資源、用於導頻之導頻資源等。信號傳輸資料可用 以排程終端機且指派訊務資源至已排程之終端機。信號傳 輸資料亦可用以促進混合式自動再傳輸（H-ARQ)反饋、功 率控制等。快閃OFDM®、IEEE 802.20、LTE及/或其他 OFDM/OFDMA系統之各種結構元件及實體層特徵可用於 邏輯通道Chi。 118974.doc -20- 200805933 圖9展示存取點110及終端機120之一設計之方塊圖，該 存取點及該終端機為圖1中之存取點及終端機中之一者。 為簡單起見，在圖9中僅展示用於在前向鏈路上之傳輸的 處理單元。 ‘ 在存取點110處，TX CDM/OFDM處理器920如以下所述 , 接收且處理訊務資料及信號傳輸並提供輸出樣本。發射器 (TMTR)922處理（例如，轉換至類比、放大、過濾及升頻轉 換）輸出樣本且產生經由天線924傳輸之前向鏈路信號。在 ⑩ 終端機120處，天線952自存取點110接收前向鏈路信號且 提供已接收之信號至接收器（RCVR)954。接收器954處理 (例如，過濾、放大、降頻轉換及數位化）已接收之信號且 提供已接收之樣本。RX CDM/OFDM處理器960如以下所 述以與藉由TX CDM/OFDM 920進行之處理互補的方式處 理已接收之樣本，且為終端機120提供經解碼之資料及已 接收之信號傳輸。 控制器930及970分別指導存取點110及終端機120處之操 作。記憶體932及972分別為存取點110及終端機120儲存程 式碼及資料。 圖10展示TX CDM/OFDM處理器920a之方塊圖，該處理 器為圖1中之TX CDM/OFDM處理器920之一設計。處理器 920a包含⑴產生載運CDM資料及耗用資料之CDM波形的 CDM處理器1010及（ii)產生載運OFDM資料之OFDM波形的 OFDM處理器1050。 在CDM處理器1010内，編碼器/交錯器1012接收待使用 118974.doc -21 - 200805933 CDM予以發送之訊務資料，基一 、, ^ ^ ^編碼機制而編碼訊務資 料且又錯（或重排序）已編碼之資料。符號映射器 基於一調變機制而將已交錯資料映射至資料 符號。解多工器(Demux)1〇l6將資料符號解多工為多個㈤ 如’16個:流。沃爾什覆蓋單元⑼朗不同的卜碼片之沃 爾什碼覆蓋或通道化备—眘袓々立％ 、化母貝枓付唬流，以獲得一對應之資 料碼片流。求和器购對用於多個沃爾什碼之多個（例 如，16個）資料碼片流求和且以碼片速率提供CDM資料。 TX耗用處理器购接收用於MAC區段之信號傳輸及用於 導頻區段之導頻資料且以碼片速率為耗用區段產生耗用資 料。TDM多kMux)1G24接收來自求和器则之⑽資 料及來自處理器1022之耗用資料，在載運CDM資料之訊務 區&中提供CDM貝料’且在耗用區段中提供耗用資料。乘 法器1026以用於存敗α_ 孖取點之偽雜訊（ΡΝ)序列乘TDM多工器 10 2 4之輸出且以碼片土亲痤祖 月迷羊k供輸出碼片。脈衝成形濾波器 觀過滤輸出碼片且提供用於_hrpd載波之隨波形。 可以CDM處理n 1(m之多個執行個體產生用於多個服叩 載波之夕個CDM波形。此等多個CDM波形可在數位域或 類比域中經升頻轉換至適當頻率。 在0_處理器1050内，編碼器/交錯器1052接收待使用 〇/DM予㈣送之訊務資料，基於-編碼機制而編碼訊務 貝料且交錯已編碼之貧料。符號映射器將已交錯之 資料映射至資料符辦。炫& 〜付號至副載波映射器1056將資料符 號映射至用於OFDM夕巧丨#、丄 M之田彳載波。零插入單元1058在不用於 118974.doc -22- 200805933 OFDM之副載波（例如，對應於CDM訊務區段及耗用區段之 副載波、空值副載波及保護副載波）上插入零符號（其具有 信號值零）。離散傅立葉逆變換（IDFT)單元1〇6〇對用於每 一 OFDM符號週期中之K個總副載波之資料符號及零符號 執行K點IDFT且提供一含有K個時域樣本之有用部分。K取 決於OFDM符號數字學且在表1及2中對於正常OFDM符號 及長OFDM符號給出。循環前置項插入單元1062複製有用 部分之最後C個樣本且將此等C個樣本附加至有用部分之 前部，以便以樣本速率形成一含有K+C個樣本之OFDM符 號。樣本速率可為碼片速率之11倍，其中η可等於1、2、 3、4等。重複部分被稱作循環前置項且用以對抗由頻率選 擇性衰落引起之ISI。窗口化/脈衝成形濾波器1〇64窗口化 且過濾、來自單元1062之樣本且提供一 OFDM波形。求和器 1070對來自CDM處理器1010之CDM波形及來自OFDM處理 器1050之OFDM波形求和且提供一輸出波形。 圖11展示TX CDM/OFDM處理器920b之方塊圖，該處理 器為圖1中之TX CDM/OFDM處理器920之另一設計。處理 器920b將CDM資料映射至用於CDM之副載波且將0FDM資 料映射至用於OFDM之副載波。處理器920b隨後基於已映 射之CDM資料及OFDM資料而產生一輸出波形。 在處理器920b内，TX CDM處理器1110接收且處理待使 用CDM予以發送之訊務資料、信號傳輸及導頻’且提供輸 出碼片。處理器1110可包含圖10中之單元1〇12至1026。 DFT單元1112對每一 OFDM符號週期中之輸出碼片執行L點 118974.doc -23- 200805933 DFT且提供用於L個副載波之L個頻域符號。L係對應於一 HRPD載波之副載波之數目且可取決於〇FDM符號數字 學。 編碼斋/父錯裔112 0及付號映射器112 2處理待使用q f d μ 予以發送之訊務資料且提供資料符號。符號至副載波映射 斋1130將來自DFT單元1112之頻域符號映射至用於cdm之 副載波且進一步將來自符號映射器丨122之資料符號映射至 用於OFDM之副載波。零插入單元1132在不用於CDM或 OFDM之副載波（例如，空值及保護副載波）上插入零符 號。IDFT單元1134對用於每一 0FDM符號週期之κ個符號 執行K點IDFT且提供一含有κ個時域樣本之有用部分。循 環前置項插入單元丨136將一循環前置項插入至有用部分且 以樣本速率提供一含有K+c個樣本2〇FDM符號。窗口化/ 脈衝成形濾波器1138窗口化且過濾來自單元1136之樣本且 提供一輸出波形。濾波器1138可比圖1〇中之濾波器1〇64提 供較急劇之頻譜衰減，其可允許對頻譜配置之更佳利用。 圖U展示RX CDM/〇FDM處理器96〇a之方塊圖，該處理 器為圖9中之RX CDM/OFDM處理器960之一設計。處理器 96〇a可用以接收藉由圖1〇中之TX CDM/OFDM處理器920a 產生之輸出波形。 為恢復CDM資料，濾波器1212自接收器954獲得已接收 之樣本’過濾已接收之樣本以移除在所關心之HRPD載波 外部之頻譜分量’執行自樣本速率至碼片速率之轉換，且 提i、已過濾之碼片。乘法器i 2〗4以由存取點使用之PN序列 118974.doc 24·The ice changes in COM 2a to 2f. The logical channel chi can be switched between each HRpD carrier and OFDM in every slot, every half slot f & The logical channel Ch2 is not limited to any data. < and can operate in pure OFDM mode to carry only 0FDJV Μ ^ ^ transmit the traffic data number transmission and/or pilot in OFDM on the logical channel Ch2 in any manner. Figure 8 shows an HRPD slot structure 800 supporting OFDM in a 5 MHz spectrum configuration. In the example shown in Figure 8, the spectrum configuration does not contain HRPD carriers. Normal OFDM symbols and long OFDM symbols can be used to transmit data throughout the available spectrum (except for the protection subband at the edge of the band). The logical channel Chi can be defined to cover the entire available spectrum. The logical channel Chl can be operated (as if it were for an OFDM/OFDMA system) and it can have design elements from other OFDM/OFDMA technologies such as Flash OFDM®, IEEE 802.20, LTE, and the like. The time-frequency resources in the logical channel Chi can be divided into traffic resources for traffic data, signal transmission resources for signal transmission, pilot resources for pilots, and the like. Signal transmission data can be used to schedule terminals and assign traffic resources to scheduled terminals. Signal transmission data can also be used to facilitate hybrid automatic retransmission (H-ARQ) feedback, power control, and the like. Various structural elements and physical layer features of flash OFDM®, IEEE 802.20, LTE, and/or other OFDM/OFDMA systems can be used for the logical channel Chi. 118974.doc -20- 200805933 Figure 9 shows a block diagram of one of the access points 110 and the terminal 120, the access point and the terminal being one of the access points and terminals in Figure 1. For the sake of simplicity, only the processing unit for transmission on the forward link is shown in FIG. ‘At access point 110, TX CDM/OFDM processor 920 receives and processes traffic data and signal transmissions and provides output samples as described below. Transmitter (TMTR) 922 processes (e.g., converts to analog, amplifies, filters, and upconverts) the output samples and produces a forward link signal transmitted via antenna 924. At 10 terminal 120, antenna 952 receives the forward link signal from access point 110 and provides the received signal to receiver (RCVR) 954. Receiver 954 processes (e. g., filters, amplifies, downconverts, and digitizes) the received signals and provides received samples. The RX CDM/OFDM processor 960 processes the received samples in a manner complementary to the processing by the TX CDM/OFDM 920, as described below, and provides the decoded data to the terminal 120 and the received signal transmission. Controllers 930 and 970 direct operations at access point 110 and terminal 120, respectively. The memory 932 and 972 store the program code and data for the access point 110 and the terminal device 120, respectively. Figure 10 shows a block diagram of a TX CDM/OFDM processor 920a, which is designed for one of the TX CDM/OFDM processors 920 of Figure 1. Processor 920a includes (1) a CDM processor 1010 that generates CDM waveforms that carry CDM data and consumes data, and (ii) an OFDM processor 1050 that generates OFDM waveforms that carry OFDM data. In the CDM processor 1010, the encoder/interleaver 1012 receives the traffic data to be sent by using the 118974.doc -21 - 200805933 CDM, and encodes the traffic information and is wrong (or Reorder) Encoded data. The symbol mapper maps the interleaved data to the data symbols based on a modulation mechanism. The multiplexer (Demux) 1〇l6 demultiplexes the data symbols into multiple (5) such as '16: stream. The Walsh Covering Unit (9) is a different code of the Walsh code coverage or channelization preparation - the mother-in-law 枓 , , to obtain a corresponding data chip stream. The summer acquires a plurality of (e.g., 16) data chip streams for multiple Walsh codes and provides CDM data at a chip rate. The TX consumer processor purchases the pilot data for the MAC segment and the pilot data for the pilot segment and consumes the data at the chip rate for the consumable segment. The TDM multi-kMux) 1G24 receives the (10) data from the summer and the consumption data from the processor 1022, and provides the CDM bedding in the traffic area & carrying the CDM data and provides consumption in the consumption section. data. The multiplier 1026 multiplies the output of the TDM multiplexer 10 2 4 by a pseudo-noise (ΡΝ) sequence for storing the α_ 孖 point and outputs the chip with the chip 痤 痤 。. The pulse shaping filter views the output chips and provides a waveform for the _hrpd carrier. The CDM processes n 1 (a plurality of execution individuals of m generates a night CDM waveform for a plurality of service carriers. These plurality of CDM waveforms may be upconverted to an appropriate frequency in a digital or analog domain. In the processor 1050, the encoder/interleaver 1052 receives the traffic data to be used by the DM/DM (4), encodes the traffic information based on the encoding mechanism, and interleaves the encoded poor material. The symbol mapper will be interleaved. The data is mapped to the data file. Hyun & ~ pay-to-subcarrier mapper 1056 maps the data symbols to the carrier for OFDM, and the zero insertion unit 1058 is not used for 118974.doc -22- 200805933 OFDM subcarriers (eg, subcarriers corresponding to the CDM traffic section and the consumption section, null subcarriers, and guard subcarriers) are inserted with a zero symbol (which has a signal value of zero). Discrete Fourier An inverse transform (IDFT) unit 1〇6〇 performs a K-point IDFT on the data symbols and zero symbols for the K total subcarriers in each OFDM symbol period and provides a useful portion containing K time-domain samples. Digitally studied in OFDM symbols and in Tables 1 and 2 for positive The OFDM symbol and the long OFDM symbol are given. The cyclic preamble insertion unit 1062 copies the last C samples of the useful portion and appends the C samples to the front of the useful portion to form a K+C sample at the sample rate. The OFDM symbol. The sample rate can be 11 times the chip rate, where η can be equal to 1, 2, 3, 4, etc. The repeating portion is referred to as a cyclic preamble and is used to combat ISI caused by frequency selective fading. The windowing/pulse shaping filter 〇64 windowed and filters the samples from unit 1062 and provides an OFDM waveform. Summer 1070 sums the CDM waveforms from CDM processor 1010 and the OFDM waveforms from OFDM processor 1050. And an output waveform is provided.Figure 11 shows a block diagram of a TX CDM/OFDM processor 920b, which is another design of the TX CDM/OFDM processor 920 of Figure 1. The processor 920b maps the CDM data to The subcarriers of the CDM and the 0FDM data are mapped to subcarriers for OFDM. The processor 920b then generates an output waveform based on the mapped CDM data and OFDM data. Within the processor 920b, the TX CDM processor 1110 receives and processes. The traffic data, signal transmission, and pilots transmitted using the CDM' and provide output chips. The processor 1110 may include the cells 1〇12 to 1026 in Figure 10. The DFT unit 1112 outputs codes in each OFDM symbol period. The slice performs L point 118974.doc -23-200805933 DFT and provides L frequency domain symbols for L subcarriers. L is the number of subcarriers corresponding to an HRPD carrier and may depend on 〇FDM symbol numerology. The coded self/parent 112 0 and the pay sign mapper 112 2 process the message data to be transmitted using q f d μ and provide the data symbols. The symbol to subcarrier mapping 1130 maps the frequency domain symbols from the DFT unit 1112 to the subcarriers for cdm and further maps the data symbols from the symbol mapper 丨 122 to the subcarriers for OFDM. Zero insertion unit 1132 inserts a zero symbol on subcarriers (e.g., null and guard subcarriers) that are not used for CDM or OFDM. The IDFT unit 1134 performs a K-point IDFT on the κ symbols for each 0FDM symbol period and provides a useful portion containing κ time-domain samples. The loop preamble insertion unit 丨 136 inserts a loop preamble into the useful portion and provides a K + c samples of 2 〇 FDM symbols at the sample rate. Windowing/pulse shaping filter 1138 windowizes and filters samples from unit 1136 and provides an output waveform. Filter 1138 can provide steeper spectral attenuation than filter 1 〇 64 in Figure 1 , which allows for better utilization of the spectrum configuration. Figure U shows a block diagram of an RX CDM/〇FDM processor 96A, which is designed for one of the RX CDM/OFDM processors 960 of Figure 9. The processor 96A can be used to receive an output waveform generated by the TX CDM/OFDM processor 920a of FIG. To recover the CDM data, the filter 1212 obtains from the receiver 954 the received sample 'filtering the received samples to remove the spectral components outside the HRPD carrier of interest' from performing the sample rate to the chip rate conversion, and i. Filtered chips. Multiplier i 2 4 to the PN sequence used by the access point 118974.doc 24·