TWI375425B - Method and apparatus for wireless communication - Google Patents

Method and apparatus for wireless communication Download PDF

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Publication number
TWI375425B
TWI375425B TW095139662A TW95139662A TWI375425B TW I375425 B TWI375425 B TW I375425B TW 095139662 A TW095139662 A TW 095139662A TW 95139662 A TW95139662 A TW 95139662A TW I375425 B TWI375425 B TW I375425B
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signaling
channel
frame
channels
transmitted
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TW095139662A
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TW200733612A (en
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Alexei Gorokhov
Aamod Khandekar
Edward Harrison Teague
Hemanth Sampath
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Qualcomm Inc
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Description

1375425 九、發明說明: 【發明所屬之技術領域】 本發明一般而言係關於通訊,且更具體而言,係關於無 線通訊系統_之信號傳輸。 【先前技#】 無線通訊系統廣泛用於提供諸如語音、封包資料、廣 播、訊息傳送等各種通訊服務。此等系統可係能夠藉由共 早可用系統資源支援多個使用者通信之多重近接系統。此 等多重近接系統之實例包括碼分多重近接(CDMA)系統、 時分多重近接(TDMA)系統、及頻分多重近接(FDMA)系 統0 一通k系統通常採用各種發訊通道以支援正向及反向鏈 路上之資料傳輸。正向鏈路(或下行鏈路)係指自基地台至 終端機之通信鏈路,而反向鏈路(或上行鏈路)係指自終端 機至基地台之通信鏈路。例如,終端機可在反向鏈路上發 送信號’以請求在一個或兩個鏈路上傳輸資料、報告通道 品質、請求交遞至更強壯基地台等等。終端機發送之信號 雖然有益’但代表系統中之開銷。 因此,此項技術中需要可在一通信系統中之反向鏈路上 高效地發送信號之技術。 【發明内容】 本文將闡述用於在一無線通信系統中之反向鏈路上的一 CDMA控制扇段上高效地發送信號之技術。該CDMA控制 扇段具有各種可組態特徵。於一實施例中,該CDMA控制 115648.doc 1375425 扇段之大小、其中發送該CDMA控制扇段之該等訊框、欲 在該CDMA控制扇段上發送之該等發訊通道皆可組態。可 在該CDMA控制扇段上發送攜載各種類型信號之發訊通 道。一發訊通道亦可稱作一控制通道、一回饋通道、一報 告通道、一開銷通道等等。 於一由一終端機在該CDMA控制扇段上傳輸信號之實施 例中,決定用於一服務基地台之CDMA控制扇段之傳輸參 數。此等參數可指示(例如)該CDMA控制扇段之大小、用 於發送該CDMA控制扇段之該等訊框、該CDMA控制扇段 之跳頻等等。亦決定用於該终端機之已啟用CDMA發訊通 道及用於每一已啟用CDMA發訊通道之平均傳輸間隔。針 對其中發送該CDMA控制扇段之每一訊框’決定欲在該訊 框中之CDMA控制扇段上發送之發訊通道。處理(例如’編 碼、通道化、比例縮放及擾亂)用於每一發訊通道之信 號。用於所有發訊通道之已處理信號經組合並被映射至一 用於該訊框中之CDMA控制扇段之時頻區。 本發明之各態樣及實施例將在下文中進一步詳述° 【實施方式】 在本文中’·,實例性"一詞用於意指"用作一實例、事例 或例解"。本文中描述為"實例性”之任一實施例或設計型 式皆未必應視為較其他實施例或設計塑式為佳或有利。 圖1顯示一具有多個基地台110及多個終端機120之無線 通信系統100。一基地台係一可與終端機通信之台。一基 地台亦可稱作一存取點、一節點B及/或某些其他網路實 115648.doc 中,術語"基地台"與"扇區"可互換使用。 本文所述信號傳輸技術亦可用於各種無線通信系統,例 如,一 CDMA系統、一 TDMA系統、一 FDMA系統、一正 交頻分多重近接(OFDMA)系統、一單載波FDMA (SC-FDMA)系統等等。一 OFDMA系統利用正交頻分多工 (OFDM),其係一種將總系統頻寬劃分成多(K)個正交子載 波之調變技術。該等子載波亦稱作音調、頻段等等。藉由 OFDM,可使用資料獨立地調變每一子載波。一 SC-FDMA 系統可利用交錯型FDMA (IFDMA)以在分佈於系統頻寬上 之子載波上傳輸、本地化型FDMA (LFDMA)以在一區塊之 毗鄰子載波上傳輸或增強型FDMA (EFDMA)以在多個區塊 之毗鄰子載波上傳輸。一般而言,藉由OFDM在頻域中及 藉由SC-FDMA在時域中來發送調變符號。 系統100可將各種子載波結構用於正向鏈路及反向鏈 路。對於一分佈式子載波結構而言,總計K個子載波係佈 置成S個非重疊集合,以使每一集合包含N個均勻分佈於總 計K個子載波上之子載波。每一集合中之接續子載波係藉 由S個子載波間隔開,其中K = S.N。因此,集合s包含子載 波 s、S + s、2S + s、...、(N-l)*S + s,其中·5e{l,-..,S}。對於一 區塊子載波结構而言,總計K個子載波係佈置成S個非重疊 集合,以使每一集合包含N個接續子載波。因此,集合S包 含子載波(s-l)*N+l至s.N,其中π{1,·.·,8}。一般而言,用於 每一鏈路之子載波結構可包括任何數量之集合,且每一集 合可包括任何數量的可以任一方式佈置之子載波。於一實 115648.doc 1375425 施例中,假定在以下說明中之多數情形下,分佈式或區塊 子載波結構用於正向鏈路,而區塊子載波結構用於反向鏈 路。 系統100可為每一鍵路支援一單個載波或多個載波。於 一實施例中,多個(C)子載波適用於由該系統支援之每一 載波。每一載波亦可被劃分成多個(P)子頻帶。一子頻帶 係該系統頻寬中之一頻率範圍。於一實施例中,每一載波 跨越約 5 MHz,C = 512、p=4、S=32、及 N=16。對於此實 施例,一單載波系統具有總計K=512個佈置成四個子頻帶 之子載波,且每一子頻帶包括128個子載波。對於此實施 例’該單載波系統具有32個子載波集合,且每一集合包括 16個子載波。對於此實施例,一包括四個載波之系統具有 總計Κ=2048個佈置成16個子頻帶之子載波。 在正向鏈路上,一基地台可使用OFDMA或SC-FDMA在 該S個子載波集合上將資料傳輸至一個或多個終端機。例 如,該基地台可將資料同時傳輸至8個不同之終端機,每 一終端機一個子載波集合。在反向鏈路上,一個或多個終 端機可使用OFDMA或SC_FDMA在該s個子載波集合上將資 料傳輸至-基地台。例如’每—終端機可在—個子載波上 將資料傳輸至該基地台。對於正向料及反向鍵路之每- 者—該S個子餘集合上之傳輸相互正交。如下所述,用 於每一鍵路之s個早栽·士隹人 千載/皮集合可以各種方式分派至終端 機。一基地台亦可藉由由八夕 』糟由二分多重近接(SDMA)在一既定子 載波集合上將資料值# f VrTi 輪至多個終端機及/或自多個終端機 I15648.doc 1375425 接收資料。 可在一個如下符號週期中為一個子載波集合產生一 OFDM符號。將N個調變符號映射至該集合中之N個子載波 且將具有零信號值之零符號映射至剩餘的K-N個子載波。 對該K個調變符號及零符號實施一 K點逆向快速傅立葉轉 換(IFFT)或逆向分立傅立葉轉換(IDFT)以獲得一 K個時域 樣本之序列。將該最後C個樣本之序列複製至該序列之開 始以形成一包含K+C個樣本之OFDM符號。該C個複製之樣 本通常稱作一循環前綴或者防護間隔,且C係循環前綴長 度。該循環前綴用於克服因頻率選擇性衰落(其係一在整 個系統頻寬内變化之頻率響應)所致之符號間干擾(ISI)。 可在一個如下符號週期中為一個子載波集合產生一 SC-FDMA符號。藉由K點快速傅立葉轉換(FFT)或分立傅立葉 轉換(DFT)將欲在該集合中之N個子載波上發送之N個調變 符號轉換至頻域以獲得N個頻域符號。將此等N個頻域符 號映射至該集合中之N個子載波且將零符號映射至剩餘之 K-N個子載波。然後,對該K個頻域符號及零符號實施一 K點IFFT或IDFT以獲得一 K個時域樣本之序列。將該最後C 個樣本之序列複製至該序列之開始以形成一包含K+C個樣 本之SC-FDMA符號。 一般而言,可藉由將符號映射至用於傳輸之子載波,以 一類似方式產生用於任何數量之子載波及任一子載波組合 之OFDM符號或SC-FDMA符號。一 OFDM符號或一 SC-FDMA符號之K+C個樣本皆在K+C個樣本/碼片週期中傳 115648.doc 11 輸。一符號週期係一個0FDM符號或一個SC FDMA符號之 時長且等於κ+c個樣本/碼片週期。 圖2 A顯示可用於正向鏈路及反向鏈路之實例性超訊框結 構200用於每一鏈路之傳輸時間線係劃分成多個超訊框 單兀。每一超訊框跨越一特定時長,此可係固定或可組 態,對於正向鍵路,每一超訊框包括一後跟]^個訊框之前 置焉八中1。一訊框可指代一傳輸時間線中之時間間 隔或在該時間間隔期間發送之傳輸。該超訊框前置碼攜 載開銷f til,該開銷資訊啟用料終端機以# &正向鍵路 之控制通道並隨後存取該系統。每一後續訊框可攜載訊務 貧料及/或信號。對於反向鏈路,每一超訊框包括M個訊 框,其中該第一訊框可延長正向鏈路上之該超訊框前置碼 之長度。反向鏈路上之超訊框在時間上與正向鏈路上之超 訊框對準。 圖2 A顯示用於正向鍵路及反向鏈路之特定超訊框結構。 一般而言,一超訊框可跨越任一時長且可包括任一數量之 訊框及其他欄位。用於反向鏈路之超訊框結構可相同或不 同於用於正向鏈路之超訊框結構。 圖2Β顯示用於反向鏈路之一交織結構210。參照回至圖 2Α,對於每一鏈路,每一超訊框中之訊框可佈置成群組, 其中每一群組包括Q個接續訊框,其中Q>1。可藉助此訊 框分組為每一鏈路形成q個交織。於一圖2B中所示之實施 例中,交織1包括訊框!、Q+1、2Q+1等等,交織2包括訊 框2、Q+2、2Q+2等等,及交織Q包括訊框Q、2Q、3(^等 115648.doc -12· 等。該Q個交織相互偏移一個訊框。於一實施例中,假定 在以下說明中之多數情形下,Q=6,則如下所述,形成六 個交織且該六個交織可用於以一交織方式發送六個封包, 每一交織中一個封包。 系統100可支援頻分.多工(FDD)及/或時分多工(TDD)。對 於FDD而言,如圖2A中所示,給正向鏈路及反向鏈路分派 單獨頻帶,且可在兩個鏈路上同時發送傳輸。對於TDD而 言,正向鏈路及反向鏈路共享相同頻帶,且可在不同訊框 中發送兩個鏈路之傳輸。例如,可給正向鏈路分派以奇數 編號之訊框,而給反向鏈路分派以偶數編號之訊框。 於一實施例中,在反向鏈路上發送一 CDMA控制扇段。 該CDMA控制扇段攜載用於反向鏈路之各種發訊通道。於 一實施例中,該CDMA控制扇段係映射至每一 CDMA訊框 中的一固定時間及頻率區。一 CDMA訊框係一其中發送該 CDMA控制扇段之訊框。於另一實施例中,該CDMA控制 扇段以一偽隨機或確定方式自CDMA訊框跳頻至CDMA訊 框以達成頻率分集。 圖3A顯示一用於一單載波之CDMA控制扇段300之實施 例。對於此實施例,Q=6且該CDMA控制扇段係在一個交 織或每隔五個訊框上發送。對於此實施例,該CDMA控制 扇段跨越一整個常規大小之訊框。若該CDMA控制扇段係 在交織1上發送,則對於延長之RL訊框1,可以對應於FL 訊框1之時間間隔來發送該CDMA控制扇段,如圖3 A中所 示。若該CDMA控制扇段係在交織2、3、4、5或6上發 115648.doc -13· 1375425 送,則可在彼交織中之每一訊框之整個訊框中來發送該 CDMA控制扇段。 圖3B顯示一用於一單載波之延長CDMA控制扇段310之 實施例。對於此實施例,且該CDMA控制扇段係在兩 個常規大小訊框中之兩個晚鄰交織上發送。對於圖中所 示之實施例,在整個延長之RL訊框1、RL訊框ό與7、RL訊 框12與13等等中來發送該CDMA控制扇段°亦可在其他RF 訊框及/或不多於兩個®比鄰交織中來發送該CDMA控制扇 段。 替代跨越一訊框之部分’跨越圖3A中所示之整個訊框或 跨越圖3B中所示之多個訊框來發送該CDMA控制扇段’可 改良位於覆蓋區域邊緣處之終端機之鏈路預算。此等終端 機通常在傳輸功率上具有一上限。一較長CDMA控制扇段 允許此等終端機藉由更多延續於一較長時間週期上之能量 來傳輸信號’從而改良正確地接收該信號之可能性。一般 而言,可跨越一整個訊框、跨越一訊框之部分、跨越多個 訊框、跨越多個訊框之部分等等來發送該CDMA控制扇 段。 於—實施例中,該CDMA控制扇段佔據每一 CDMA訊框 中之至少一個子頻帶。對於圖3A中所示之實施例,P=4且 該CDMA控制扇段係在每一 CDMA訊框内的四個子頻帶中 之至少一者上發送。於一實施例中’假定在以下說明中之 多數情形下,該CDMA控制扇段之大小可在頻率上比例縮 放,例如,以子頻帶為單位。對於此實施例’該CDMA控 I15648.doc •14· ^/5425 制扇段可跨越每一 CDMA訊框中之一個、兩個或可能更多 個子頻帶》用於該CDMA控制扇段之子頻帶可係鄰近或可 散佈於該系統頻寬上。於另一實施例中,可在時間或時間 及頻率兩者上比例縮放該CDMA控制扇段之大小。 一般而言,如圖3A之左上隅角所示,可將該CDMA控制 扇段映射至一覆蓋F個子載波且跨越τ個符號週期之時頻 區,其中FU且TU。該CDMA控制扇段包括1;個傳輸單 兀,其中U=F,T » —傳輸單元係一個符號週期中的一個子 載波。為清晰起見,在以下說明中之多數情形中,係針對 其中該C D Μ A控制扇段佔據一個或一個以上子頻帶且跨越 整個CDMA訊框(RL訊框1除外)之實施例加以闡述。於 一實施例中,K=512、PM及T=8。對於此實施例,該 CDMA控制扇段(1)覆蓋— CDMA訊框之8個符號週期中的 128個子載波之一整數倍且(2)包括一整數倍之1〇24個傳輸 單元’例如’ 1024、2048、3072或4096個傳輸單元。 圖3A亦顯示該CDMA控制扇段之跳頻。該(:〇]^八控制扇 段可跳頻跨越不同CDMA訊框中之頻率,如圖3八中所示。 該跳頻可係偽隨機性或確定性。 圖3A進一步顯示用於訊務通道之一實例性跳頻方案。— 訊務通道意指自一發射機發送資料至一接收器且亦可稱作 -通道、-實體通it、-實體層通道、—資料通道等等。 每一訊務通道可映射至一特定時頻區塊序列,如圖3a中所 示’該等時頻區塊跳頻跨越不同訊框中之頻率以達成頻率 分集。於一實施例中,一時頻區塊對應於一個訊框中之_ 115648.doc •15· 1375425 個集合之子載波。一跳頻(FH)圖案指示用於每一訊框中之 每一訊務通道之特定時頻區塊。圖3A顯示用於一個訊務通 道y的一時頻區塊序列。其他訊務通道可映射至用於訊務 通道y的時頻區塊序列之垂直及循環移位變型。 於一實施例t,該等訊務通道之跳頻避開該CDMA控制 扇段。於另一實施例十,該等訊務通道之跳頻相對於該 CDMA控制扇段係偽隨機。對於此實施例,可給每一 CDMA訊框中之CDMA控制扇段分派若干個(例如’八個) 子載波集合。然後,將與該CDMA控制扇段相衝突之每一 訊務通道映射至一分派給該CDMA控制扇段之子載波集 合。對於此實施例,當發生衝突時’該等訊務通道與該 CDMA控制扇段即交換子載波。 圖3C顯示一用於四個載波之跳頻CDMA控制扇段320之 實施例。對於此實施例,為每一載波提供該CDMA控制扇 段之一個事例。於一實施例中,每一載波之CDMA控制扇 段事例攜載用於彼載波之反向鏈路信號且與用於其他載波 之CDMA控制扇段事例無關。用於四個載波之四個CDMA 控制扇段事例(1)可具有相同或不同之大小’(2)可彼此一 起或獨立地跳頻,及(3)可在一個交織(例如’每隔五個訊 框)上發送。 圖3A及3B顯示該CDMA控制扇段之某些實施例。於另一 實施例中’可在多個交織中發送該CDMA控制扇段。於再 一實施例中,可針對其中可能發送該CDMA控制扇段之每 一訊框,有選擇地啟用或禁用該CDMA控制扇段° 115648.doc -16 - 1375425 系統100可利用各種發訊通道來支援正向鏈路及反向鏈 路上之資料傳輸。該等發訊通道通常攜載少量用於實體層 之信號。用於每一鏈路之特定發訊通道可取決於各種因 素’例如’傳輸訊務資料之方式、傳輸信號之方式、訊務 通道及發訊通道之設計型式等等。 表1列出用於反向鏈路之實例性發訊通道及對每一發訊 通道之簡短說明。於一下文將詳細闡述之實施例中,除確 認(ACK)通道外’表1中顯示的所有發訊通道皆在該CDMA 控制扇段上發送。一在該CDMA控制扇段上發送之發訊通 道稱作一 CDMA發訊通道。可使用時分及/或頻分多工來發 送該ACK通道以達成該ACK通道之良好效能。一般而言, 可在該CDMA控制扇段上發送任何發訊通道。 表1 發訊通道 標記符號 ... 說 明 ACK通道 ACKCH 攜載用於接收自一基地台之封包之 ACK〇 CQI通道 CQICH 攜戰用於正向鍵路上之速率控制之 CQI。 s青求通道 REQCH 攜載對反向鏈路上之資源之請求。 波束成形回饋通道^ BFCH 攜載用於正向鏈路上之波束成形及空 間多工之回饋。 子頻帶回饋通道 道相;ϋ '------- SFCH 攜載用於正向鏈路上之適應性子頻帶 排程之回饋。 等頻遇進 PICH 攜載一寬帶導頻。 存取通道 … —-^ ACH 攜載用於存取該系統之存取探測信 號。 資;Ϊ2聞述將表 1中之某些發訊通道用於正向鏈路上之 115648.doc •17· 1375425 定封包1被錯誤解碼並於訊框π + 9中在ACK通道上將一否認 (NAK)發送至該基地台,其中q係該ACK/NAK之延遲且 1^<Q。該基地台接收該NAK並在訊框讲+ Q中傳輸封包1之 第二資料區塊(區塊2)。該終端機接收區塊2、處理區塊1及 2、決定封包1被正確解碼並在訊框m + Q + g中發送回一 ACK。該基地台接收該ACK並終止封包1之傳輸。該基地 台處理下一資料封包(封包2)並以類似方式傳輸封包2之資 料區塊。 出於清晰起見,圖4顯示NAK及ACK兩者之傳輸。對於 一基於ACK之方案,若正確解碼一封包,則發送一 ACK, 但不發送NAK且藉由不存在ACK來推測。 於圖4中,在一既定交織上每隔Q個訊框發送一新資料區 塊。為改良通道利用率,該基地台可在Q個交織上傳輸高 達Q個封包。通常選擇H-ARQ再傳輸延遲Q及ACK/NAK延 遲q來為發射機及接收器兩者提供充足之處理時間。 如圖4中所示,該終端機可週期性地在該等發訊通道上 發送CQI及其他回饋。該終端機亦可發送一對反向鏈路上 之資源之請求(REQ)以將資料傳輸至該基地台。 圖5顯示圖1中之基地台110及終端機120之一實施例之方 塊圖。對於此實施例,基地台110及終端機120各自配備有 多個天線。 在基地台110處,傳輸(TX)資料及信號處理器510接收一 個或一個以上終端機之訊務資料、根據為彼終端機選定的 一個或一個以上封包格式處理(例如’格式化、編碼、交 115648.doc -19· 1375425 資料處理器610、一 TX信號處理器620及一多工器(ΜΙΙχ) 660 〇 在TX資料處理器610中,一單元612编碼、交錯及符號 映射訊務資料並提供資料符號。一符號至子載波映射器 614將資料符號映射至指派給終端機12〇的一訊務通道之時 頻區塊。 圖6顯示其中除ACK通道以外的所有發訊通道皆在 CDMA控制扇段上發送之實施例。對於此實施例,Τχ信號 處理器620包括一用於每一 CDMA發訊通道之通道處理器 630。在通道處理器63〇a中,編碼器632編碼一 CQI值並提 供一已編碼訊息WCqICH。通道化器634藉由一通道化序列 SCQICH倍增該已編碼訊息。倍增器636藉由一增益GCQ1CH倍 增通道化器634之輸出並提供用於該CQI通道之一輸出序列 XcqICH。通道處理器63〇b編碼一請求訊息、藉由一通道化 序列sreqch倍增所產生之已編碼訊息、藉由一增益Greqch 比例縮放經通道化之序列並提供用於該請求通道之一輸出 序列Xreqch。通道處理器630c編碼一波束成形回饋、藉由 一通道化序列SBFCH倍增所產生之已編碼訊息、藉由一增 益GBFCH比例縮放經通道化之序列並提供用於該波束成形 回饋通道之一輸出序列Xbfch。通道處理器63〇d編碼一子 頻帶回饋,藉由一通道化序列881;(:11倍增所產生之已編碼訊 息、藉由一增益GSFCH比例縮放經通道化之序列並提供用 於該子頻帶回饋通道之一輸出序列Xsfch。通道處理器 630e編碼一導頻資料、藉由一通道化序列SpicH倍增所產生 115648.doc •22· 1375425
定實施例。對於此實施例,可以如下方式處理欲在發訊通道 C上發送之B位元信號訊息,其中c e (CQICH、REQCH、 BFCH、SFCH、PICH及ACH}。首先藉由將此訊息映射至L 位元已編碼訊息Wc來編碼訊息mc,其中L = 2β β 於一實施例中,已編碼訊息Wc係一長度為L之沃爾什序 列。一2x2哈達馬矩陣及一較大尺寸哈達馬矩陣亙&必可 表示如下:
W 2kx2k -丛 kxk
Wkxk W, kxk 公式(1)
如公式(1)中所示,可形成冪為2的平方維數之哈達馬矩陣 (例如,2x2、4X4、8x8等等)。長度為L之不同沃爾什 序列可藉由一LXL哈達馬矩陣丛以之^行來形成。信號訊息 Mc具有i的一 B位元二進製值,其中哈達馬矩陣 ~LxL之第(i+1)行經提供作為已編碼訊息Wc。於一實施例 中,k號訊息“。係10個位元長,而已編碼訊息Wc係一可 自如下公式求出之1024位元沃爾什序列:
Wc = {w;, w*5 W1024 } 公式(2) 其中沃爾什位元(其中灸=1,,1〇24)可採取一+丨或^之值, 或 Wie{+1,-1}。 咸 t , t 於—實施例中,用於PICH之已編碼訊息 WPICH係一所有已編碼訊息序列,該序列對應於之 订之沃爾什碼0。除上述沃爾什碼映射外,亦可以其他 方式來編碼信號訊息。 115648.doc •25· 1375425 藉由-用於發㈣道e之通道化序列U通道化已編碼 訊息We。於-實施例t ’通道化序列&係產生如下。—^ 位元移位暫存器根據如下產生器多項式產生—爲隨機 製序列Fc : h(D) = D20+D17+D,2+D,0+l , 公式(3)
其中D表示-個位元之延遲。2()位元移位暫存器之初始狀 態係y至一可藉由如下公式產生之2〇位元值h ^ : 公式(4)
Fc,init =[位元顛到(Ac.pr)] m〇d 220, 其中Pr係一大素數,例如,pr=2,654 435 761 ;及 Ac係一發訊通道c之種籽值。 相同之大素數可用於所有發訊通道。 於一實施例中,發訊通道c之種籽值係藉由如下公式求 出:
Ac - [ S3 S2 Sl m5 m4 m3 m2 mi p12 Pll Pl〇 ρ9 ρ8 ρ7 ρ6 ρ5 ρ4 ρ3 ρ2 Ρι ], 公式(5) 其中[C3 C2 Cl]係發訊通道c之一 3位元指標; [ΠΙ5 m4叫m2 im]係一其中發送該信號之訊框之5位元指 標;及 [Pl2 Pll p10 p9 p8 p7 p6 p5 p4 p3 p2 Pl]係一目標基地台之 12位元識別符。 可給該等發訊通道指派不同之指標’該等不同指標可用 於為此等發訊通道產生不同之種籽值,且因此不同之通道 115648.doc Λ •26· 1375425 化序列。於一實施例中,給CQICH指派一 [〇〇〇K二進製)之 才曰標,給BFCH指派一 [001]之指標,給81?〇11指派一 [〇1〇] 之指標,給ACH指派一 [1〇0]之指標,給REQCH指派一 [101]指標,及給PICH指派一 [110]之指標。該目標基地台 可係該服務同步子集合中之一FL服務扇區、一非服務同步 子集合中之一指定扇區等等。
可藉由如下公式求出來自移位暫存器之長度為L/2之二 進製序列Fc : Ρ〇 = {ίΛ fc2,fc3,..., fc
公式(6) 重複二進製序列Fc 2R次以藉由如下公式形成長度為 通道化序列Sc : δ〇 = {ίιι^ιϋ A2, ·.·,fc2, · 第一 2R個位下一 2R個位 最後2R個位 公式(7) 其中R係一根據下文闡述選定之重複因子。
如公式(5)中所示,每一發訊通道之種籽值Ac且因此通 道化序列8<;取決於(1)彼發訊通道之一指標,該指標允許目 標基地台區分不同之CDMA發訊通道,(2)其中發送該信號 之訊框’及(3)目標基地台之識別符,該識別符允許每一基 地台接收為彼基地台發送之信號。 為通道化已編碼訊息We,首先將此訊息重複r次以形成 一包含L.R個位元之經重複序列。重複因子r經選擇以使重 複後之位元總數小於或等於CDMA控制扇段中之傳輸單元總 數’或L.R^u。為簡明起見,在下文說明中假定L.R=U。 115648.doc a 27- 藉由如下公式使用通道化序列&來倍增該經重複序列以得 出一用於發訊通道之輸出序列Xc: 最後R個位元 公式(8) 如公式(8)中所顯示,該經重複序列中之每一位元(1)若通 道化序列Se中之對應位元等於1,則經顛倒,或(2)否則, 則不顛倒。如圖6中所示,可基於分派給彼發訊通道之功 率來比例縮放用於發訊通道之輸出序列Xc。可給CDMA發 訊通道分派相同或不同之功率量。為簡明起見,公式(8)中 略去了功率比例縮放。 於一實施例申’用於ACH之輸出序列XACH之最後1^7個 位元皆設置至零’且輸出序列Xach之長度被有效縮短至 (L-F)‘R。於另一實施例中,用於ach之已編碼訊息WACH或 經重複訊息經形成以使其短於L.R個位元。藉由一較短之 通道化序列來倍增該較短之經重複序列以獲得一較短之輸 出序列Xach。於任何情形中,可以較小之時長來發送該較 短之輸出序列XACH。此提供某些防護時間以在將一存取探 測信號發送至該系統時計及一終端機處之不準確定時。 於一實施例中,可為每一 CDMA訊個別地啟用及禁用 CDMA發訊通道。可藉由將用於彼發訊通道之輸出序列Xc 設置至一全部為零之序列來禁用一既定CDMA發訊通道。 於一實施例中,可藉由組合器640組合用於CQICH、 REQCH、BFCH、SFCH及PICH之輸出序列以獲得一用於 服務不同子集合之複合序列。於一實施例中,可將用 115648.doc -28 - 1375425 其·中 Asm—[爪5 Πΐ4 Πΐ3 m2 nil ti.i tio t9 tg t7 t5 t3 t2 ti p12
Pll pio P9 P8 P7 P6 P5 P4 P3 P2 Pi] ’ 且[til t10 t9 t8 t7 t6 t5 t4 t3 h t!]係一用於該終端機之11位元識別符或MACID,該iHi 元識別符或M ACID可因不同之同步子集合而係不 然後,可藉由如下公式產生擾亂序列YSM : ^sm = {ysM> ysM» Ysm» —> y»<}, ys^ysV^X1),其中灸= 1,.",(U-1),且 ysW,
公式(12) 公式(13) 其中竑6{0,1}係二進製序列FSM之第k個位元;及 y‘e{-l,+ l}係擾亂序列YSM之第k個位元。 擾亂序列Ysm根據偽隨機二進製序列FSM以一偽隨機方式 自位元至位元旋轉+90°或-90。。 可藉由擾亂序列Ysm來擾亂複合序列XSM以產生一如下 經擾亂之序列Zsm :
Zsm = {ysL .xsm,Ysm ·Χ5Μ,YsL .xs3m,…,ysii .xs^i } 公式(14) 其中4 係複合序列xSM之第k個位元。 於一實施例t,藉由一專用於目標基地台之擾亂序列 Yss來擾亂用於ACH之輸出序列XACH。使用該ACH之一專 用扇區擾亂序列Yss之緣由係因為(1)一試圖存取該系統之 終端機可能不具有一有效MACID及(2)該目標基地台通常 不知曉哪些終端機正試圖存取彼基地台。可藉由如下方式 產生擾亂序列Yss。可藉由Ass=[l 1 1 ni5 m4 m3 m2 mi p12 Pll PlO P9 p8 P7 P6 P5 P4 P3 P2 Pi]之種籽值,如上所述產生 115648.doc •30- 1375425 一長度為U之偽隨機二進製序列fss❶然後,擾亂序列Yss 可形成為如下:
Yss = {yss5 ySs,ys3S5 ···, ySs}, 公式(15) ysAs+1=yi”&”,其中 *=1, (u]),且乂 = 1, 其中fsAs e{0,l}係二進製序列Fss之第k個位元;及 ys4se{-i,+i}係擾亂序列Yss之第k個位元。 公式(16)
可藉由擾亂序列Yss來擾亂輸出序列XACH以產生一如下 經擾亂之序列zss:
Zss { YsS XaCH,YsS ·Χα〇Η,Ysm .XaCH» ···> Yss .XACH }, 公式(17) 其中<CH +1}係輸出序列XACH之第k個位元。如上所述, 可將輸出序列XACH端部處之某些位元設置至零β 於一實施例中’藉由組合器650來組合經擾亂之序列zSM 及zss以產生如下之輸出序列ζουτ :
Ζ〇υτ 一 {ZSM +ZSS, zSM +zss,zSM +zss,…,zSM +zss}, 公式(1 8) 其中z/M及4分別係輸出序列ZSM及zss之第k個位元。輸出 序列Ζουτ經進一步處理並在CDMA控制扇段上發送。 對於上述實施例,用於CDMA發訊通道之訊息具有一 B 個位元之固定長度《此允許將該等訊息映射至長度為L之 沃爾什序列,其中L = 2B。對於此實施例,一具有多於B個 位元之訊息可經分割且發送於(1)多個CDMA訊框中之該發 訊通道之一個事例上或(2)—個CDMA訊框之該發訊通道 115648.doc •M · 1375425 有準確RF定時資訊之事實。 圖8顯示控制CDMA控制扇段上之信號傳輸之過程800。 於一實施例中,該CDMA控制扇段及該等CDMA發訊通道 皆可經組態用於該系統中之每一扇區。過程800可由一用 於其扇區之基地台或由一用於基地台之網路實體來實施。 以下說明係針對一個扇區。 決定用於該扇區之CDMA控制扇段之傳輸參數(區塊 812)。此等傳輸參數可指示該CDMA控制扇段之大小(例 如,該CDMA控制扇段之子頻帶或子載波數量)、用於該 CDMA控制扇段之訊框或交織、該CDMA控制扇段之跳頻 等等。亦決定經啟用用於該扇區之CDMA發訊通道(區塊 814)。啟用哪些CDMA發訊通道可取決於在正向及/或反向 鏈路上傳輸多少訊務資料及/或其他因素。例如,若不對 正向鏈路實施適應性子頻帶排程,則可禁用SFCH,且若 不在FDD系統中實施波束成形及空間多工,則可禁用 BFCH 〇 選擇每一已啟用CDMA發訊通道之平均傳輸間隔(區塊 8 1 6)。該平均傳輸間隔係一既定發訊通道之連續傳輸之間 的平均時間。使用一平均傳輸間隔而非一固定傳輸間隔給 一終端機提供決定何時發送信號之靈活性且另外允許在設 置傳輸間隔時達成更精細之粒度。 決定並自用於該扇區之已啟用CDMA發訊通道中選擇經 啟用用於每一終端機之CDMA發訊通道(區塊818)。亦(例 如)根據用於該終端機之傳輸方案(例如,SISO或ΜΙΜΟ)及/ 115648.doc -34- 1375425 塊1012)。決定用於終端機之已啟用CDMA發訊通道及用於 每一已啟用cDMA發訊通道之平均傳輸間隔(區塊1〇14)。 針對每一訊框,做出是否以彼訊框發送cDMA控制扇段 之決定(區塊1016)。若回答係"是”’則決定欲在當前訊框 中發送之所有CDMA發訊通道(區塊1〇18)。可根據用於每 一已啟用CDMA發訊通道之平均傳輸間隔、是否存在發送 用於每一已啟用CDMA發訊通道之信號等等來做出此決 定。處理(例如,編碼、通道化、比例縮放及擾亂)欲在當 刖訊框中發送之用於每一 CDMA發訊通道之信號(區塊 1020卜組合用於所有CDMA發訊通道之經處理信號(區塊 1022)並將組合之信號映射至一用於該當前訊框中之cDMA 控制扇段之時頻區(區塊1024)。 圖11顯不一用於在CDMA控制扇段上發送信號之裝置 11〇〇。裝置1100包括用於為一服務扇區之CDMA控制扇段 決定傳輸參數(例如,大小、交織及跳頻)之構件(區塊 Π12)及用於決定用於一終端機之已啟用cdMa發訊通道及 用於每一已啟用CDMA發訊通道之平均傳輸間隔之構件(區 塊1114)。 裝置1100進一步包括用於處理其中發送該CDMA控制扇 段之每一訊框之構件,該構件包括用於決定欲在一當前訊 框中發送之CDMA發訊通道之構件(區塊1118)、用於處理 (例如,編碼、通道化、比例縮放及擾亂)用於欲在該當前 汛框中發送之每一 CDMA發訊通道之信號之構件(區塊 1120)、用於組合用於所有CDMA發訊通道之經處理信號之 115648.doc -36 - 1375425 構件(區塊1122)、及用於將組合之信號映射至一用於該當 • 前訊框中之cdMA控制扇段之時頻區之構件(區塊1124)。 圖12顯示一藉由一基地台實施的用於接收在CDMA控制 扇&上發送之信號之過程12〇〇。對於每一訊框,做出一是 否在彼訊框中發送CDMA控制扇段之決定(區塊1212)β若 回答係"是",則自一用於該當前訊框中之cDMA控制扇段 之時頻區中提取所接收符號(區塊1214)。 鲁 對於每一活動終端機(其係一可使用扇區專用及使用者 專用擾亂序列YSM來發送信號之終端機),決定可能由該活 動終端機在當前訊框中發送之所有CDMA發訊通道(區塊 1216)。處理(例如,解擾亂、解通道化及解碼)用於可能由 每一活動終端機發送之每一 CDMA發訊通道之所接收符 號,以恢復來自彼CDMA發訊通道之信號(若存在)(區塊 1218)。亦處理(例如,解擾亂、解通道化及解碼)用於該存 取通道之所接收符號,以恢復由試圖存取該系統之終端機 鲁發送之任何存取探測信號(區塊122〇)。
圖13顯示一用於接收在CDMA控制扇段上發送之信號之 裝置1300。裝置1300包括用於處理其中發送該CDMA控制 扇段之每一訊框之構件,該構件包括用於自一用於一當前 訊框中之CDMA控制扇段之時頻區提取所接收符號之構件 (區塊1314)、用於決定由每一活動終端機在當前訊框中發 送之CDMA發訊通道之構件(區塊1316)、用於處理(例如, 解擾亂、解通道化及解碼)可能由每一活動終端機發送之 每一 CDMA發訊通道之所接收符號,以恢復來自彼cDMA 115648.doc -37- 1375425 發訊通道之信號(若存在)之構件(區塊1318) '及用於處理 (例如’解擾亂、解通道化及解碼)用於存取通道之所接收 符號以恢復由試圖存取該系統之終端機發送之任何存取探 測信號之構件(區塊1320)。
可藉由各種手段來構建本文所述之傳輸技術。舉例而 言,該等技術可構建於硬體、軟體或其一組合中。對於硬 體構建方案而言’一終端機處之處理單元可構建於一或一 個以上專用積體電路(ASIC)、數位信號處理器(Dsp)、數 位信號處理裝置(DSPD)、可程式化邏輯裝置(pLD)、現場 可程式化閘陣列(FPGA)、處理器、控制器、微控制器、微 處理器、其他設計用於執行本文所述功能之電子單元、或 其一組合中。一基地台處之處理單元亦可構建於一個或一 個以上ASIC、DSP、處理器等等中。處理器⑽可實施圖8 中之過程800,處理器560可實施圖1〇中之過程觸,及處 理器520可實施圖12中之過程12〇〇。
對於動體及/或軟體構建方案而言,可使用能執行本文 所述功能之模組(例如程序、功能等等)來執行該等技術。 軟體碼可儲存於-記憶_如,圖5中之記憶體…或572) 内且由'""處理器(例如,虚理哭 處理15 530或57〇)來執行。該記憶 體既可構建於處理器内部亦可構建於處理器外部。 上述對所揭示實施例之說明旨在使任_熟習此項技術者 皆能夠製作或使用本發明。熟習此項技術者將易於得出該 等㈣例之各種修改,且本文所界定的—般原理亦可應用 於其匕實施例’此並未f離本發明之精神或料。因此, 115648.doc -38· 1375425 本文並非意欲將本發明限定於本文所示實施例,而欲賦予 其與本文所揭示原理及新穎特徵相一致的最寬廣範·。 【圖式簡單說明】 結合該等圖式依據上文所述之詳細說明,人們將更易明 瞭本發明之特徵及性質’所有圖式中相同之參考字符識別 相同之元件。 圖1顯示一無線通信系統。 圖2A顯示用於正向及反向鏈路之超訊框結構。 圖2B顯示一用於反向鏈路之交織結構。 圖3A及3B顯示一用於一個載波的具有兩個不同大小之 跳頻CDMA控制扇段。 圖3C顯示一用於四個載波之跳頻CDMA控制扇段。 圖4顯示正向鏈路上之H-ARQ傳輸。 圖5顯示一基地台與一終端機之方塊圖。 圖6顯示一傳輸資料及發信號理器之方塊圖。 圖7顯示一接收資料及發信號理器之方塊圖。 圖8及9顯示分別用於控制一 CDMA控制扇段上之信號傳 輸的一過程及一裝置。 圖10及11顯示分別用於在CDMA控制扇段上發送信號之 一過程及一裝置。 圖12及13顯示分別用於接收在CDMA控制扇段上所發送 信號之一過程及一裝置。 【主要元件符號說明】 1-13 訊框(交織) 115648.doc -39· 1375425 100 無線通信系統 104a 區域 104b 區域 104c 區域 110 基地台 120 終端機 130 系統控制器
200 超訊框結構 300 CDMA控制扇段 310 延長CDMA控制扇段 320 跳頻CDMA控制扇段 510 傳輸(TX)資料及信號處理器 512 TX空間處理器 514a 調變器(MOD) 514bs 調變器(MOD)
516a 天線 5 1 6bs 天線 518 RX空間處理器 520 RX資料及信號處理器 530 控制器/處理器 532 記憶體 552a 天線 552at 天線 554a 解調變器(DEMOD)(調變器) 115648.doc •40- 1375425 554at 解調變器(DEMOD)(調變器) 556 接收(RX)空間處理器 558 RX資料處理器 560 TX資料及信號處理器 562 TX空間處理器 570 控制器/處理器 572 記憶體
610 TX資料處理器 612 單元 614 符號至子載波映射器 620 TX信號處理器 630a 通道處理器 630b 通道處理器 630c 通道處理器 630d 通道處理器
630e 通道處理器 630f 通道處理器 632 編碼器 634 通道化器 636 倍增器 640 組合器 642a 擾亂器 642b 擾亂器 650 組合器 115648.doc •41 - 1375425 652 單元 654 符號至子載波映射器 656 TX ACK通道處理器 660 多工器(MUX) 710 解多工器(DEMUX) 720 RX資料處理器 722 符號至子載波解映射器 724 σ〇 一 早兀 730 RX信號處理器 732 符號至子載波解映射器 734 IDFT/IFFT 單元 736a 解擾亂器 736b 解擾亂器 740a 通道處理器 740b 通道處理器 740c 通道處理器 740d 通道處理器 740e 通道處理器 740f 通道處理器 742 解通道化器 744 解碼器 750 RX ACK通道處理器 115648.doc -42·

Claims (1)

1375425 第095139662號專利申請案 中文申請專利範圍替換本(99年11月)多0 十、申請專利範圍: - 1. 一種用於無線通訊之裝置,其包括: 至少一個處理器,該至少一個處理器經組態以決定其 中發送一控制扇段之訊框且,若存在,則針對其中發送 •該控制扇段之每一訊框,處理欲在該訊框中之該控制扇 段上發送的用於發訊通道之信號,並將該經處理之信號 映射至一用於該訊框中之該控制扇段之時頻區,其中來 自多個終端機之信號係藉助碼分多重近接(cdma)方案 Φ 在該控制扇段上發送,及其中該時頻區包含正交頻分多 工(〇職)符號;及 夕 一耦合至該至少一個處理器之記憶體。
如凊求項1之裝置,其中該控制扇段係在每隔Q個訊框中 發送’其中Q係一大於1之整數。 月求項1之裝置,其中對於其中發送該控制扇段之每 一訊框,該控制扇段跨越一整個訊框。 如請求们之裝置,其中每一訊框覆蓋多個子頻帶,且 其中該控制扇段具有一可組態大小且在一整數個子頻帶 中發送。 5·如”月求項α裝置’其中對於該等發訊通道之每一個, 該至=一個處理器經組態以編碼用於該發訊通道之訊息 以獲传-已編碼訊息’且藉助該發訊通道之一通道化碼 來通道化該已編碼訊息。 6·如°“項5之裝置’其中對於該等發訊通道之每一個, 人夕個處理益經組態以藉由將該訊息映射至複數個 115648-991103.doc 1375425 沃爾什序列中之一者來編碼用於該發訊通道之該訊息。 7·如請求項5之裝置,其中對於該等發訊通道之每一個, 該至少一個處理器經組態以基於該發訊通道之一指標及 一思欲接收該發訊通道之一基地台之識別符來產生該發 訊通道之該通道化碼。 8.如請求項1之裝置,其中用於該等發訊通道之訊息具有 一相等長度。 9·如請求項1之裝置,其中該至少一個處理器經組態以藉 助至少一個擾亂序列來擾亂用於該等發訊通道之該信 號。 10. 如清求項9之裝置’其_該至少一個處理器經組態以基 於一意欲接收該等發訊通道之一基地台之識別符來產生 該至少一個擾亂序列中之一者。 11. 如請求項9之裝置,其中該至少一個處理器經組態以基 於發送該等發訊通道之一終端機之識別符及一意欲接 收該等發訊通道之一基地台之識別符來產生該至少一個 擾亂序列中之一者。- 12. 如請求項1之裝置,其中該至少一個處理器經組態以組 合用於該等發訊通道之該信號,以將該組合之信號轉換 至頻域以獲得信號符號,且將該等信號符號映射至用於 該訊框中之該控制扇段之該時頻區上》 13. 如請求項1之裝置,其中該等發訊通道包括一攜載通道 品質指示符(CQI)之發訊通道。 14. 如請求項13之裝置,其中該至少一個處理器經組態以將 115648-991103.doc 1375425 15. 16. 17.
18. 19. 20.
21. 22. 該攜載CQI之發訊通道發送至多個基地台。 如請求们之裝置,其中該等發訊通道包括—攜載波束 成形回饋資訊之發訊通道。 如請求们之裝置’其中該等發訊通道包括一攜載回饋 貝〜訊之發訊通道,該回饋資訊指示多個子頻帶中之至少 一個子頻帶之通道品質。 :請求項1之裝置,其中該等發訊通道包括一攜載回饋 貢訊之發訊通道,該回饋資訊係用於一多輸入多輸出 (ΜΙΜΟ)通道之多個空間通道。 如請求項1之裝置,其中該至少一個處理器經組態以基 於每—發訊通道之一平均傳輸間隔來決定欲在該訊框中 之該控制扇段上發送之該等發訊通道。 如請求項1之裝置,其中該控制扇段跨越頻率自訊框跳 頻至訊框。 如請求項1之裝置,其甲該至少一個處理器經組態以決 定用於一訊務通道之子載波,決定分派給該控制扇段之 子載波’且若該訊務通道與該控制扇段相衝突,則將該 訊務通道映射至分派給該控制扇段之該等子載波。 如咕求項1之裝置’其中該時頻區包含至少8個OFDM符 號及至少128個子載波。 一種在一無線通訊系統中用於無線通訊之方法,其包 括: 決定其中發送一控制扇段之訊框;及 針對其中發送該控制扇段之每一訊框, I15648-991103.doc 1375425 處理用於欲在該訊框中之該控制扇段上發送之發訊 通道之信號, 其中該處理用於該等發訊通道之該信號包括: 將一用於該等發訊通道之每一個之訊息映射至複數個 沃爾什序列中之一沃爾什序列,及 藉助該發訊通道之一通道化碼來通道化用於每一發訊 通道之該沃爾什序列,及 將該經處理之信號映射至一用於該訊框中該控制扇 段之時頻區,其中該時頻區包含〇FDM符號。 23. 如請求項22之方法,其中該處理用於該等發訊通道之該 信號包括: 基於該發訊通道之一指標及一意欲接收該發訊通道之 一基地台之識別符來產生用於每一發訊通道之該通道化 碼。 24. 如請求項22之方法,其中該處理用於該等發訊通道之該 信號包括: 藉助至少一個擾亂序列來擾亂用於該等發訊通道i該 信號。 25. 如請求項24之方法,其中該處理用於該等發訊通道么該 信號包括: 基於一發达該等發訊通道之—终端機之識別符及〆意 欲接收该等發訊通道之一基地台之識別符來產生該多少 一個擾IL序列之一者。 26. 如請求項22之方法,其中該處理用於該等發訊通道i該 115648-991103.doc 信號包括: 組合用於料發訊通道之該信號, 段之 將該。且σ之k號轉換至頻域以獲得信號符號及 將該等信號符號映射至用於該訊框中之該控制扇 27 28 .如請求項22之方法,其中該時頻區包含 號及至少128個子載波。 至少8個OFDM符 一種用於無線通訊之裝置,其包括: 用於決疋其中發送—控制扇段之訊框之構件;及 用於處理其中發送該控制扇段之每一訊框之構件 包括 其 用於處理欲在該訊框中之該控制扇段上發送之用於 發訊通道之信號之構件, -、中用於處理該等發訊通道之該信號之該構件包括: 用於將帛於邊等發訊通道之每一個之訊息映射至複 數個沃爾什序列巾之ϋ什序狀構件,及 用於藉助該發訊通道之一通道化碼來通道化用於每一 發訊通道之該沃爾什序列之構件及 用於將该經處理之信號映射至一用於該訊框中該控制 扇奴之時頻區之構件,其中該時頻區包含符號。 29. 如叫求項28之裝置,其中用於處理該等發訊通道之該信 號之該構件包括: 用於基於該發訊通道之一指標及一意欲接收該發訊通 道之一基地台夕識別符來產生用於每一發訊通道之該通 115648-99ll03.doc 1375425 道化碼之構件。 30. 31. 32. 33. 34. 35. 如請求項28之裝置,其中用於處理該等發訊通道之該信 號之該構件包括: 用於藉助至少一個擾亂序列擾亂用於該等發訊通道之 該信號之構件。 如請求項30之裝置,其中用於處理該等發訊通道之該信 號之該構件包括: 用於基於一發送該等發訊通道之一終端機之識別符及 一意欲接收該等發訊通道之一基地台之識別符來產生該 至少一個擾亂序列之一者之構件。 如清求項28之裝置,其巾該時頻區包含至少8個OFDM符 號及至少12 8個子載波。 一種用於無線通訊之裝置,其包括: 至少一個處理器,該至少一個處理器經組態以藉助多 個通道化碼來通道化用於多個發訊通道之訊息,藉助至 少一個擾亂碼來擾亂該等經通道化之訊息,及將該等已 擾亂訊息映射至一用於—控制扇段之時頻區,其中該時 頻區包含OFDM符號;及 一耗合至該至少一個處理器之記憶體。 如凊求項33之裝置,其中該至少一個處理器經組態以基 於一偽隨機數(PN)發生器及用於該多個發訊通道之不= 種籽值來產生用於該多個發訊通道之該多個通道化碼。 如明求項33之裝置,其中該至少一個處理器經組態以基 於一發送该多個發訊通道之一終端機之識別符及— 115648-991103.doc • 6 - 13/5425 接收。亥夕個發訊通道之一基地台之識別符來產生該至少 一個擾亂序列之一者。 如月长項33之裝置,其中該至少一個處理器經組態以將 用於該夕個發訊通道之該等訊息映射至沃爾什序列並 藉助該多個通道化碼來通道化該等沃爾什序列。 •如仴求項33之裝置,其中該多個發訊通道攜載不同類型 之回饋=貝訊,且其中用於該多個發訊通道之該等訊息攜 載通道°〇質指不符(CQ1)、波束成形回饋資訊、子頻帶回 饋資訊、或其一組合。 3 8 ·如吻求項33之裝置,其中該時頻區包含至少8個OFDM符 號及至少128個子载波。 39. —種用於無線通訊之裝置,其包括: 至少一個處理器,該至少一個處理器經組態以: 決定其中發送一控制扇段之訊框且針對其中發送該控 制扇段之每一訊框; 自一用於該訊框中該控制扇段之時頻區提取所接收符 號,其中該時頻區包含OFDM符號; 決疋由一終端機在該訊框中之該控制扇段上可能發送 之發訊通道,其中來自多個終端機之信號係藉助碼分多 重近接(CDMA)在該控制扇段上發送;及 處理用於該等可能發送之發訊通道之該等所接收符號 以恢復由該終端機發送之信號;及 一耦合至該至少一個處理器之記憶體。 40.如請求項39之裝置,其中該控制扇段係在每隔Q個訊框 115648-991103.doc 1375425 中發送,其中Q係一大於1之整數β 41. 如請求項39之裝置,其中對於其中發送該控制扇段之每 一訊框’該控制扇段跨越一整個訊框。 42. 如請求項39之裝置’其中該至少一個處理器經組態以將 該等接收之符號轉換至時域以獲得接收之樣本,且藉由 至少一個擾亂序列來解擾亂該等接收之樣本。 43. 如請求項42之裝置’其中該至少一個處理器經組態以基 於該終端機之一識別符及一接收該控制扇段之一基地台 之識別符來產生該至少一個擾亂序列之一者。 44. 如請求項39之裝置,其中針對該等可能發送之發訊通道 之每一個,該至少一個處理器經組態以藉助該發訊通道 之一通道化碼來實施通道化以獲得經通道化之樣本,且 解碼該等經通道化之樣本以恢復用於該發訊通道之一訊 息。 45. 如請求項44之裝置,其中針對每一可能發送之發訊通 道’該至少一個處理器經組態以將該等經通道化之樣本 映射至複數個沃爾什序列中之一沃爾什序列,且提供一 與該沃爾什序列相關聯之訊息作為用於該發訊通道之一 已恢復訊息。 46. 如請求項44之裝置,其中針對每一可能發送之發訊通 道’該至少一個處理器經組態以基於該發訊通道之一指 標及一意欲接收該發訊通道之一基地台之識別符來產生 用於該發訊通道之該通道化碼。 47·如請求項39之裝置,其中該時頻區包含至少8個OFDM符 115648-991103.doc 1375425 號及至少128個子載波。 48. —種用於無線通訊之方法,其包括: 決定其中發送一控制扇段之訊框;及 對於其中發送該控制扇段之每一訊框, 自一用於該訊框中之該控制扇段之時頻區提取所接 收符號,其中該時頻區包含〇FDm符號, 決定由一終端機在該訊框中之該擇制扇段上可能發 送之發訊通道,及 處理用於該等可能發送之發訊通道之該等接收之符 號以恢復由該终端機發送之信號,其中該處理用於該等 可能發送之發訊通道之該等所接收符號包括: 將該等所接收符號轉換至時域以獲得所接收樣本,及 藉助至少一個擾亂序列解擾亂該等所接收樣本。 49. 如請求項48之方法,其中針對每一可能發送之發訊通 道’该處理用於該等可能發送之發訊通道之該等所接收 符號包括: 藉助該發訊通道之一通道化碼來實施通道化以獲得經 通道化之樣本, 將該等經通道化之樣本映射至複數個沃爾什序列中之 一沃爾什序列,及 提供一與該沃爾什序列相關聯之訊息作為用於該發訊 通道之一已恢復訊息。 50. 如s青求項48之方法,其中該時頻區包含至少8個〇fdM符 115648-991103.doc •9· 1375425 號及至少128個子載波》 51. 一種用於無線通訊之裝置,其包括: 用於決定其中發送一控制扇段之訊框之構件;及 用於處理其中發送該控制扇段之每一訊框之構件,其 包括: 用於自一用於該訊框中之該控制扇段之時頻區提取 所接收符號之構件,其中該時頻區包含〇FDm符號, 用於決定由一终端機在該訊框中之該控制扇段上可 能發送之發訊通道之構件,及 鲁 用於處理用於該等可能發送之發訊通道之該等所接 收符號以恢復由該終端機發送之信號之構件,其中用於 處理該等可能發送之發訊通道之該等所接收符號之該構 件包括: 用於將該等所接收符號轉換至時域以獲得所接收樣本 之構件,及 用於藉助至少一個擾亂序列來解擾亂該等所接收樣本鲁 之構件。 52. 如請求項51之裝置’其中針對每一可能發送之發訊通 道,用於處理該等可能發送之發訊通道之該等所接收符 號之該構件包括: 用於藉助該發訊通道之一通道化碼來實施通道化之構 件, 用於將經通道化樣本映射至複數個沃爾什序列中之一 115648-99ll03.doc -10· 1375425 沃爾什序列之構件,及 用於提供一與該沃爾什序列相關聯之訊息作為用於該 發訊通道之一已恢復訊息之構件。 53.如请求項51之裝置,其中該時頻區包含至少8個Ofdm符 號及至少12 8個子載波。 54. —種用於無線通訊之裝置,其包括:
至少—個處理器,該至少一個處理器經組態以決定用 於控制扇段之傳輸參數,決定經啟用用於該控制扇段 之發訊通道,及發送可指示用於該控制扇段之該等傳輸 參數及用於該控制扇段之該等已啟用發訊通道之控制資 §八中來自多個終端機之信號係藉助碼分多重近接 (CDMA)方案在該控制扇段上發送, 其中用於該控制扇段之該等傳輸參數指示該控制扇段 大小及其中發送該控制扇段之訊框,及
其中該控制扇段 個子載波;及 之大小包含至少8個OFDM符號 及128 一叙合至該至少 如請求項54之裝置 定用於該控制扇段 平均傳輸間隔。 55. —個處理器之記憶體。 ,其中該至少一個處理器經組態以決 之該等已啟用發訊通道之每一個之一 56. 如請求項54之奘罢 ^ , 中該至少-個處理器經組態以決 疋知啟用用於至少田μ ^ 、"糙機之每一個之發訊通道。 57. —種包含可由一電腦執 丁之馬之電腦可讀取儲存媒 115648-991l03.doc ,11 · 體’該電腦可讀取儲存媒體包含: 用於促使一電腦決定其中發送一控制扇段之訊框,及 針對其中發送該控制扇段之每一訊框之碼, 用於促使一電腦處理用於欲在該訊框中之該控制扇段 上發送之若干發訊通道之信號之碼, 其中該處理用於該等發訊通道之該信號包含用於促使 一電腦將一用於該等發訊通道之每一個之訊息映射至複 數個沃爾什序列中之一沃爾什序列之碼,及藉助該發訊 通道之一通道化碼來通道化用於每一發訊通道之該沃爾 什序列,及 用於促使一電腦將該經處理之信號映射至一用於該訊 框中該控制扇段之時頻區之碼,其中該時頻區包含 OFDM符號。 58. —種包含可由_電腦執行之碼之電腦可讀取儲存媒 體,該電腦可讀取儲存媒體包含: 用於促使-電腦決定其中發送一控制扇段之訊框,及 針對其中發送該控制扇段之每一訊框之碼, 用於促使一電腦自—用於該訊框中該控制扇段之時頻 區提取所接收符號,其中該時頻區包含〇FDM符號之 碼, 用於促使一電腦決定由一終端機在該訊框中之該控制 扇段上可能發送之發訊通道之碼及 用於促使—電腦處理用於該等可能發送之發訊通道之 115648-991103.doc •12· 1375425 該等所接收符號以恢復由該終端機發送之信號之碼’其 中該用於該等可能發送之發訊通道之處理該等接收符號 個擾亂序列來解擾乱該 包含:用於促使一電腦將該等接收之符號轉換至時域以 獲得接收之樣本,且藉由至少一 一 等接收之樣本之碼。 115648-991103.doc •13- 1375425 ^〇c^l3V66:r^ ^ t ΐ 七义1式9拉;i丨主丨1 Η丨
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