TWI338526B - Transmitting information in mobile communications system - Google Patents

Transmitting information in mobile communications system Download PDF

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Publication number
TWI338526B
TWI338526B TW096100569A TW96100569A TWI338526B TW I338526 B TWI338526 B TW I338526B TW 096100569 A TW096100569 A TW 096100569A TW 96100569 A TW96100569 A TW 96100569A TW I338526 B TWI338526 B TW I338526B
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Taiwan
Prior art keywords
rach
information
preambles
mobile terminal
preamble
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TW096100569A
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English (en)
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TW200738005A (en
Inventor
Young-Dae Lee
Sung-Duck Chun
Myung-Cheul Jung
Sung-Jun Park
Patrick Fischer
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Lg Electronics Inc
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Priority claimed from KR1020060073210A external-priority patent/KR100913416B1/ko
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Publication of TW200738005A publication Critical patent/TW200738005A/zh
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0866Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

1338526 九、發明說明: 【發明所屬之技術領域】 本發明係關於在行動通訊系統中之傳輸資訊。 【先前技術】 第1圖說明E-UMTS之作為範例之網路結構。該 E-UMTS係一自現存UMTS系統進化而來之系統。
HJMTS系統之基本規格目前係由第三代合移專案 (the Third Generation Partnership Project,3GPP)發展中。 E-UMTS系統可稱為長期進化(L〇ng Term Evolution,LTE) 系統e 如第1圖所示,一 E-UMTS網路可由一 E-UTRAN及一核 心網路(core network,CN)組成。E-UTRAN可包括使用者 設備(User Equipment,UE)、一稱為 eNodeB 或 eNB 之基地 台、及一位於網路末端且連接至外部網路之存取閘道 (Access Gate,AG) 〇
該AG可分成一用於處理使用者流量之部分及一用於 處理控制流量的部分。AG用於處理使用者流量之部分及 A G用於處理控制流量之部分可經由一用於通訊之新介面 彼此連接。 一或多數細胞可存在於一 eNodeB(eNB)中,eNodeB可 藉由一用於傳輸使用者流量及/或控制流量之介面連接。 CN亦可包括AG及一適用於UE之使用者註冊的節點。 亦可在E-UMTS中提供一介面,以區分E-UTRAN及CN。 介於一行動終端及一網路間之無線電介面協定層,可 依據通訊系統中為人熟知之開放系統互連(〇pen SysUm Interconnection,〇SI)模型的三下層,分為一第一層(L11)、 一第二層(L2)、及一第三層(L3)。第一層之實體層使用一 實體通道it供資訊傳送。一位於第三層中之無線電資源控 制(Radio Resource Cpntrol,RRC)層控制行動終端及網路 間之無線電資源。 RRC層允許在行動終端與網路間之rrc訊息交換。該 RRC層可位於各網路郎點中’諸如eN〇deB、AG,或位於該 eNodeB中或該AG中。 第2圖顯示基於3GPP無線存取網路規格在一終端及一 UMTS地面無線電存取網路(UMTS Terrestrial Radio Access Network,UTRAN)間之無線電介面協定的結構。第 2圖之無線電介面協定係由一實體層、一資料鏈路層及一網 路層水平地組成,且係由一用於傳輸資料資訊之使用者平 面及一用於傳輸控制訊號之控制平面垂直地組成。 第2圖之該等協定層可依據通訊系統中為人熟知之開 放系統互連(OSI)模型的三下層,分為一第一層(L1)、一第 二層(L2)、及一第三層(L3)。現將解釋第2圖所顯示之控制 平面中的各無線電協定層,及第3圖所顯示之使用者平面中 的各無線電協定層。 一實體層(其係第一層)使用一實體通道將資訊傳送服 務提供至一上層。該實體層係經由一傳送通道連接至一媒 體存取控制(MAC)層(其位於上層)。 1338526 資料係經由一傳送通道在MAC層與實體層間轉移。資 料亦在不同實體層間(明確言之,在一傳輸側之實體層及一 接收側之實體層間)轉移。 第二層之一 MAC層經由一邏輯通道提供服務至無線 電鍵路控制(Radio Link Control,RLC)層(其係MAC層的上 層)。第二層之RLC層支援可靠資料傳輸。
RLC所施行之功能可在MAC層内實施為一功能組塊。 然而,該RLC層可能不存在。 第二層之封包資料收斂協定(Packet Data Convergence Protocol,PDCP)層係用以在具有較小頻寬在 無線電介面上使用IP封包(例如IPv4或IPv6)有效地傳輸資 料。PDCP層使用一用於此目的(稱為標頭壓縮)之功能減少 不必要控制資訊。
一位於第三層之最底部處的無線電資源控制(RRC)層 係僅在控制平面中定義。RRC層處理用於無線電載送(radi〇 bear,RB)之組態、重組態及釋放的傳送通道及實體通道。 一無線電載送(RB)指由第二層所提供之用於在行動終端及 UTRAN間資料轉移之月民務。 用於將資料自網路傳輸至行動終端之下行鏈路傳送通 道,可包括一用於傳輸系統資訊之廣播通道(BCH),及一 用於傳輸使用者流量或控制訊息之下行鍵路共享通道 (SCH)。下行鍵路多播、廣播服務之流量或控制訊息可經 由下行鏈路SCH,或經由一分離下行鏈路多播通道(MCH) 傳輸。用於將資料自行動終端傳輸至網路之上行鰱路傳送 7 1338526 通道’可包括用於傳輪一初始控制訊息之隨機存取通道 (Random Access Channel,RACH)’ 及用於傳輸一佶田、 &用者流 量或控制訊息的上行鍵路共享通道(SCH)» 下文中將詳盡解釋一隨機存取通道(RACH)。—加 故而 言’當一終端使時間同步與一網路匹配’或該終端透過上 行鏈路傳輸對應資料時,若沒有上行鏈路無線電資源、 輸資料,則RACH係用來獲得無線電資源。
例如,當打開一終端時,該終端大體上匹配_ _p行鍵 路同步以致能自一其希望存取之細胞接收系統資訊。 琢終 端應在接收系統資訊後將存取請求傳輸至網路或基 。Ο用 於RRC連接。然而,若該終端目前未使網路與時間同步匹 配且未獲取一上行鏈路無線電資源,則使用RACH。 換句話說’該終端使用RACH自網路請求一用於傳輸 一存取請求訊息的無線電資源。基地台接著分配一適當無 線電資源予該終端,以允許該終端傳輸一 RRC連接訊息。
該終端接著可使用已分配無線電資源將RRC連接訊息傳輸 至該網路。 在另一實例中,當终端與網路形成一 RRC連接時,該 終端依據無線電資源排程自網路獲取一無線電資源,及使 用已分配無線電資源將資料傳輸至该網路。然而’若無資 料留在終端緩衝器中,網路可能不會分配上行鏈路無線電 資源,因為要將一上行鏈路無線電資源分配給一沒有資料 可傳輸的終端是無效率的。終端緩衝器之狀態係週期性地 或依據事件產生報告予網路。若不需要一無線電資源的新
I: S 1338526 期涵蓋在此所述之結構,且不僅結構上等效而且係等效之 結構。 【圖式簡單說明】
本文所包括之附圖提供進一步之瞭解,且係併入與構 成此規格書之一部分,附圖顯示各種範例性具體實施例且 連同說明用以解說本揭露書之原理。在不同圖中藉由相同 數字參考的特徵、元件及態樣表示依據一或多數具體實施 例之相同、等效或類似特徵、元件或態樣。 第1圖顯示係一行動通訊系統之E-UMTS的範例性網路 結構。 第2圖顯示無線電協定之控制平面上的各層。 第3圖顯示無線電協定之使用者平面上的各層。 第4圖顯示依據某些具體實施例依照一特定目的藉由 基地台分組所有RACH時機。
第5圖顯示依據某些具體實施例之一基地台如何組合 簽名及RACH時機用於分組。 第6圖顯示依據第5圖所述之建立原因及CQI資訊的組 合分組。 第7圖顯示依據某些具體實施例在行動通訊系統中傳 輸資訊之方法的訊號流。 【主要元件符號說明】 10 終端 20 基地台
20

Claims (1)

1338526
99. 1L 30 十、申請專利範圍: 1. 一種用於在一行動通訊系統中分配無線電資源之方法,該 方法包含: 由一行動终端接收分組資訊(grouping information), 其與用於存取一隨機存取通道(Random AcceSS Channel, RACH)之一或多個前導碼(Preamble)有關,其中根據藉由 該行動终端所請求的該等無線電資源的一數量分組該一 或多個前導碭,且該所接收的分組資訊被用於從多個前導 碼分組之中選擇至少一個前導碼分組; 由該行動終端依據該行動終端的一狀態選擇至少一 個前導碼分組; 由該行動終端從該至少一個所選擇的前導碼分組選 擇至少一個前導碼;以及 由該行動終端傳輸該至少一個所選擇的前導碼。
2.如申清專利範圍第1項所述之方法,其中該一或多個前導 瑪係依據預定標準分組。 3.如申請專利範圍第2項所述之方法,其中該等預定標準包 含使用RACH之一目的、通道品質指示符⑼I)資訊、無線 電資源之一請求量及一建立原因中至少一者。 4.如申請專利範圍第 該目的包含一初始存取 無線電資源請求中之一 3項所逑之方法,其中使用RACH之 遞交、維持同步 '一存取釋放及一 明 8526 丨/' s·如申請專利範圍第3項所述之方法,其中該建立原因包含 —緊急呼叫、從一閒置狀態變遷至一作用狀態及從一中斷狀 態變遷至一作用狀態中之一。 6.如申請專利範圍第1項所述之方法,其中該分組資訊係以 系統資訊及一傳呼訊息之一接收》
7.如申請專利範圍第1項所述之方法,其中該一或多個前導 碼之各者包括一 RACH簽名以及一RACH時機。 8. 如申請專利範圍第1項所述之方法,其中該一或多個前導 螞係為隨機存取前導碼。 9. 如申請專利範圍第7項所述之方法,其中該RACH時機 係為用於傳輪該RACH簽名的一無線電資源《
1 〇.如申請專利範圍第1項所述之方法,其中該分組資訊係 透過系統資訊或一 RRC連接重組態訊息來接收。 11 ·如申請專利範圍第丨〇項所述之方法,其中該分組資訊於 ―遞交執行期間被包括於該RRC連接重組態訊息中。 12 — •一種用於在一行動通訊系統中分配無線電資源的方法’ 該方法包含: 由一基地台根據藉由一行動终端所請求的該等無線 電資源的一數量分組一或多個前導碼; 22 1338526
由該基地台傳输分組資訊’其與用於存取一隨機存取 通道(RACH)之一或多個前導碼有關’其中該經傳輪的分組 資訊係由該行動终端使用’以在多個前導瑪分組之中選擇 至少一個前導碼分組:以及
由該基地台接收在該一或多個前導碼之中的至少一 個前導碼,其中該至少一個前導瑪分組係由該行動終端根 據該行動終端的一狀態而選擇出’且該至少一個前導碼係 由該行動终端從該至少一個經選擇的前導碼分组而選擇 出。 13.如申請專利範圍第12項所述之方法,更包含以下步驟: 於傳輸該分組資訊的步驟之前,由該基地台依據預定 標準將該一或多個前導碼分組β 14. 如申請專利範圍第13項所述之方法,其中該等預定標準 包含使用RACH之一目的、通道品質指示符(cqj)資訊、無 線電資源之一請求量及—建立原因中至少一者。 15. 如申請專利範圍第14項所述之方法,其中使用rach 之該目的包含一初始存取、遞交、維持同步、一存取釋玫及 一無線電資源請求中之一。 16·如申請專利範圍第14項所述之方法,其中該建立原因包 含一緊急呼叫、從一間置狀態變遷至—作用狀態及從一中斷 狀態變遷至一作用狀態中之一。 23 1338526 I /r . I 9§:'U.^〇 ^---------—.一! 17·如申請專利範圍第12項.所述之方法,其中該分紐資訊係 在系統資訊及一傳呼訊息.二者之一中傳輪。 18. 如申請專利範圍第12項所述之方法’其更包含: 在該資料接收步驟之後,由該基地台改變及再傳輸該 分組資訊β 19. 如申請專利範圍第I〗項所述之方法,其中該一或多個前 導碼之各者包括一 RACH簽名以及—RACH時機’且該一或 多個前導碼係為隨機存取前導碼。 20. 如申請專利範圍第19項所述之方法,其中該RACH時 機係為用於傳輸該RACH簽名的一無線電資源。 2 1.如申請專利範圍第1 2項所述之方法,其中該分組資訊係 透過系統資訊或一 RRC連接重組態訊息來傳輸。 22.如申請專利範圍第21項所述之方法,其中該分組資訊於 —遞交執行期間被包括於該RRC連接重組態訊息中。 24 1338526 y 索喊途絮^τ
建立原因(Α,Β> CQI (ο,υ 可用資源(A~G)及簽名(0-15) 隨機id/簽名數 A 0 AO,.., A10, BO..., B7. C0,..,C1 21 B 0 B8,..,815, C2,..,C4 11 A 1 C5,..,C9, 00,..,08 14 6 1 A11,..,A15, C10,..,C15, D9....D15 18 b ;·
TW096100569A 2006-01-05 2007-01-05 Transmitting information in mobile communications system TWI338526B (en)

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US75706306P 2006-01-05 2006-01-05
US77130506P 2006-02-07 2006-02-07
US77179106P 2006-02-08 2006-02-08
KR1020060073210A KR100913416B1 (ko) 2006-02-07 2006-08-03 이동통신 시스템에서의 정보 전송방법

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US (5) USRE43949E1 (zh)
EP (1) EP1969738B1 (zh)
JP (1) JP2009521892A (zh)
AU (1) AU2007203861B2 (zh)
BR (1) BRPI0706353B1 (zh)
ES (1) ES2459371T3 (zh)
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WO (1) WO2007078165A1 (zh)

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US7881724B2 (en) 2011-02-01
WO2007078165A1 (en) 2007-07-12
ES2459371T3 (es) 2014-05-09
EP1969738A1 (en) 2008-09-17
AU2007203861B2 (en) 2009-11-26
EP1969738A4 (en) 2013-04-03

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