TWI451786B - 供控制一通信系統內一反向鏈路之資料速率之方法及裝置 - Google Patents
供控制一通信系統內一反向鏈路之資料速率之方法及裝置 Download PDFInfo
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Description
本發明一般係關於通信領域,更特定言之,係關於控制一通信系統內行動台之反向鏈路之資料速率。
在一無線通信系統中,一使用者不必要且過度的發送不僅會降低系統容量,亦對其他使用者造成干擾。對一通信系統中反向鏈路的資料速率的低效選擇會造成不必要且過度的發送。兩個終端使用者之間通信的資料經由若干協定層傳遞,以確保經由該系統的正確資料流。通常,行動台從應用程式接收用以在一反向鏈路上發送之資料區塊。將該資料區塊分成數個訊框,然後透過該通信鏈路發送。至少在一個方面,藉由檢查資料各訊框中的錯誤,並且,若在該資料訊框中偵測到無法接受錯誤或錯誤速率,則請求重新發送該相同的資料訊框之系統可確保資料的正確遞送。該資料區塊可為任何類型,例如,音樂資料、視訊資料等。該等資料區塊可具有不同的尺寸與不同的遞送需求。此種資料遞送需求經常與服務品質相關聯。可按照通信資料速率、該服務可接受的訊包損失速率、資料遞送在時間延遲上的一致性以及該資料通信可接受的最大延遲來測量服務品質。若所選擇用於發送的資料速率不適當,則經常無法獲取所需的訊包損失與通信延遲參數。
在一正向鏈路通信中,該基地台經常具有與數個行動台
間的正向鏈路品質相關的充分資訊。如此,該基地台能夠集中管理該正向鏈路通信資料速率。然而,在該反向鏈路中,行動台沒有關於其他行動台的發射之資訊。因此,該行動台可發出一請求,以獲取以一資料速率發送之許可。該基地台在檢視每個行動台的請求之後,接受或拒絕所請求的資料速率。若拒絕所請求的資料速率,則該行動台將請求一較低的資料速率,直至該基地台接受所請求的資料速率。允許該行動台不經該請求與接受程序,而以低於一資料速率之速率發送。此種資料速率通常為非常低的資料速率。在該反向鏈路上發送之前,該行動台需要完成其針對資料速率請求之通信。在行動台與基地台之間的此種費用通信會達到一不可接受的位準,並對理想的服務品質造成衝擊。歐洲專利EP 0 627 827描述一方法,其中基於個別資訊流的需要之一聯合評估來影響發送速率的選擇,以便維持服務常數的品質。
因此,需要提供一種用以在一通信系統中選擇一反向鏈路資料速率之系統、方法以及裝置。藉由根據本發明獨立項第1項及第16項之方法及裝置來實現這個需要。
本文所列舉的一個或一個以上範例性具體實施例的背景均為數位無線資料通信系統。雖然在此背景下使用本發明
有許多優點,但是本發明的不同具體實施例也可併入不同的環境或組態中。一般而言,本文中說明的各種系統均可使用軟體控制型處理器、積體電路或離散邏輯構成。本申請案中所提及的資料、指令、命令、資訊、信號、符號及晶片有利於以電壓、電流、電磁波、磁場或磁粒子、光場或光粒子、或其任何組合來表示。此外,各方塊圖中所示的方塊可代表硬體或方法步驟。
更明確地說,本發明之各項具體實施例可併入根據分碼多向近接(code division multiple access; CDMA)技術運作的無線通信系統,電信行業協會(Telecommunication Industry Association; TIA)及其它標準組織所發佈的各種標準中已揭示並說明了此項技術。此等標準包括TIA/EIA-95標準、TIA/EIA-IS-2000標準、IMT-2000標準、UMTS與WCDMA標準,所有該等標準均經引用併入本文。在「TIA/EIA/IS-856 cdma2000高速率訊包資料空中介面規格」中也詳細說明一資料通信系統,此文亦經引用併入本文。若需獲得標準副本,請造訪全球資訊網以下位址:http://www.3gpp2.org
,或致函TIA,Standards and Technology Department,2500 Wilson Boulevard,Arlington,VA 22201,United States of America。一般視該標準為UMTS標準,其經引用併入本文,可聯絡以下地址獲得該標準:3GPP Support Office,650 Route des Lucioles-Sophia Antipolis,Valbonne-France。
圖1說明能夠根據任何分碼多向近接(CDMA)通信系統標
準運作同時併入本發明之各項具體實施例之通信系統100的一般方塊圖。通信系統100可用於語音、資料或二者的通信。一般而言,通信系統100包括一基地台101,其提供數個行動台(例如,行動台102至104)之間,行動台102至104與公共交換電話與資料網路105之間的通信鏈路。圖1中的行動台稱為資料接取終端機(access terminal; AT),且該基地台稱為資料接取網路(access network; AN),與本發明的主要範疇與各種優點並不背離。基地台101可包括數個組件,如一基地台控制器及一基地收發器系統。基於簡化考量,未顯示此等組件。基地台101可與其他基地台(例如,基地台160)進行通信。行動交換中心(未顯示)可控制通信系統100的各種運作方面,並與網路105與基地台101及160之間的回程199相關。
基地台101透過從該基地台101發射的正向鏈路信號與其涵蓋區域中的各行動台進行通信。將以行動台102至104為目標的正向鏈路信號相加,形成正向鏈路信號106。該正向鏈路可承載數個不同的正向鏈路通道。接收正向鏈路信號106的各行動台102至104解碼該正向鏈路信號106,以擷取以其使用者為目標的資訊。基地台160亦可透過從基地台160發射的正向鏈路信號與其涵蓋區域內的該等行動台進行通信。行動台102至104可透過對應的反向鏈路與基地台101與160進行通信。各反向鏈路由一反向鏈路信號(例如,分別用於行動台102至104之反向鏈路信號107至109)保持。儘管該等反向鏈路信號107至109以一個基地台為目
標,但亦可由其他基地台接收。
基地台101及160可同時與一共同行動台進行通信。例如,行動台102可與基地台101與160緊密聯繫,以保持與基地台101與160兩者進行通信。在該正向鏈路上,基地台101發射正向鏈路信號106,且基地台160發射正向鏈路信號161。在反向鏈路上,行動台102發射反向鏈路信號107,可由基地台101與160兩者接收。要向行動台102發送一資料訊包,應選擇該等基地台101與160之一,用以向行動台102發射該資料訊包。在該反向鏈路上,基地台101與160皆嘗試解碼由該行動台102發送的流量資料。可使該等反向與正向鏈路的資料速率與功率位準,與本發明各種方面概括之基地台與行動台之間的通道條件保持一致。
圖2說明根據本發明之各種方面運作之用以處理及解調變所接收的CDMA信號之接收器200的方塊圖。接收器200可用於解碼反向與正向鏈路信號上的資訊。可使用接收器200解碼基礎通道、控制通道以及補充通道上的資訊。所接收的(Rx)樣本可儲存在RAM 204中。接收的樣本由射頻/中頻(radio frequency/intermediate frequency; RF/IF)系統290以及天線系統292產生。該RF/IF系統290與天線系統292可包括一或多個組件,用以接收多個信號,並用以RF/IF處理所接收的信號,以利用所接收的分集增益。經不同傳播路徑傳播的多個所接收信號可形成一共同源。天線系統292接收RF信號,及傳遞RF信號至RF/IF系統290。RF/IF系統290可為任何傳統的RF/IF接收器。所接收的RF信號經過濾、降
頻及數位化,形成基頻頻率的RX樣本。將該等樣本提供給多工器(multiplexer; mux)252。將mux 252的輸出提供給搜尋器單元206與指狀元件208。將控制系統210耦合至此。組合器212將解碼器214耦合至指狀元件208。控制系統210可為藉由軟體控制的微處理器,且可位於相同的積體電路或位於分離的積體電路中。解碼器214的解碼功能可依據渦輪解碼器(turbo decoder)或任何其他合適的解碼演算法。可將源發射的信號以若干代碼層編碼。該解碼器214將根據兩或三個代碼實行解碼功能。例如,可將發送的資料以兩個不同的層編碼,一外層與一實體層。該實體層係依據該渦輪代碼,且該外層係依據里德所羅門代碼。如此,該解碼器214依據此等代碼解碼所接收的樣本。
在操作期間,將所接收的樣本提供給mux 252。Mux 252將該等樣本提供給搜尋器單元206與指狀元件208。控制單元210配置指狀元件208,以根據搜尋器單元206的搜尋結果以不同的時間偏移對所接收的信號實行解調變與解展開。組合該解調變的結果並傳遞至解碼器214。解碼器214解碼該等資料,並輸出該等解碼資料。實行通道解展開的方式為,根據單一時序假設,將所接收樣本乘PN序列與所指派Walsh函數的複數共軛,並且以數位方式過濾產生的樣本,通常使用積體及轉儲(dump)累積器電路(未顯示)。此種技術在此項技術中已知。可在基地台101與160的接收器部分中使用接收器200,用以處理所接收的來自行動台的反向鏈路信號,且在任何行動台的接收器部分中使用,用以處理所
接收的正向鏈路信號。
解碼器214可累積組合的能量,用以偵測資料符號。各資料訊包可承載一循環冗餘檢查(cyclic redundancy check; CRC)欄位。該解碼器214可與控制系統210與或其他控制系統連接,用以檢查所接收資料訊包中的錯誤。若不傳遞該CRC資料,則將錯誤地接收所接收的資料訊包。該控制系統210與或其他控制系統將向該發射器傳送一否定應答訊息,用以重新發射該資料訊包。
圖3說明用以發射反向及正向鏈路信號之發射器300的方塊圖。將欲發送的通道資料輸入至調變器301進行調變。調變可根據任何熟知調變技術,如QAM、PSK或BPSK。在調變之前,可經由一或多個編碼層傳遞要發送的通道資料。為調變器301產生欲發送的通道資料。由調變器301接收欲發送的通道資料。
由資料速率與功率位準選擇器303選擇該調變資料速率。根據從目的地接收的回饋資訊進行資料速率的選擇。該資料速率經常基於通道條件,以及其他相關因素,且基於本發明的各種方面。通道條件將隨時變化。資料速率的選擇也隨時變化。
資料速率與功率位準選擇器303從而選擇調變器301中的資料速率。調變器301的輸出經信號展開操作傳遞,並在組塊302中放大,以由天線304發送。該資料速率與功率位準選擇器303亦為所發射信號的放大位準選擇一功率位準。所選擇的資料速率及功率位準的組合允許在接收目的地正確
解碼所發射的資料。在組塊307中亦產生前導信號。在組塊307中,將前導信號放大至適當位準。該前導信號功率位準與接收目的地的通道條件相一致。該前導信號將在組合器308中與該通道信號組合。可在放大器309中放大該組合的信號,並由天線304發射。天線304之組態包括天線陣列以及多個輸入多個輸出之任何數目的組合。
在CDMA 2000系統中,允許行動台(mobile station; MS)具有若干同時進行的通信服務。各通信服務會具有不同的服務品質(quality of service; QoS)需求。對於一服務選項而言,以特定定義之QoS參數(如特定資料速率或資料速率範圍、資料訊包或數個資料訊包通信所允許的訊包損失速率與最大延遲)進行資料訊包的通信。在通信鏈路進行服務協商階段,行動台(MS)與基地台(BS)對一組QoS參數達成一致。可以定義該等QoS參數,用於所定義之通信服務的持續時間。然後,可要求該BS滿足此種協商的QoS,例如資料速率,訊包損失以及具有最高可能性之最大延遲。
根據本發明的各種方面,提供一種用以實施該反向鏈路上的QoS之方法及裝置,其中與佇列長度與訊包延遲截止期限相關的更新資訊在MS上提供,而在BS上提供用以配置所協商的QoS之資源管理器。該MS向BS請求所需的速率,而非報告其佇列長度(backlog)資訊。MS在向BS請求資料速率之前,計算所需的資料速率與持續時間。資料速率的請求可為請求一或多個正向鏈路上的流量通道功率與前導(traffic channel power to pilot;T/P)之比率的形式。該組可
用資料速率具有對應的T/P比率。可提供T/P與資料速率之間的對應表。MS控制的自主資料速率亦可基於來自BS的擁塞回饋。BS負責MS的速率配置、擁塞管理以及反向鏈路的穩定性。BS亦負責容許控制。下列訊息流與程序圖描述回應一資料速率請求之資源配置。
BS管理的實際資源為流量通道與前導功率之比率(T/P)。從資料速率至通道T/P的映射為,根據所允許的重新發送的數目以及對混合ARQ的使用所選擇的運作點。BS可按照延遲需求(所允許的重新發送)為各服務指派一不同的映射。對於短交易且延遲需求非常低(例如,交互遊戲)之服務而言,此種最佳化比較有用。對於大多數的服務而言,BS最好選擇最大化反向鏈路通量之映射。左手側的數字(1至8)代表將發生的事件或程序的可能順序。
1. BS管理容許控制,且僅容許具有可接受且可實現的QoS需求之通信服務(或流)。一旦容許一服務或通信資料訊包流,MS即意識到所協商的QoS參數,例如可接受的資
料速率、訊包損失速率以及與該流相關聯的最大延遲。注意,由於通道變化與靈活性,此等QoS保證需蓋然而論。
2. MS實施在入口處捨棄非一致性資料訊包之Ò››(上游)策略。因此,MS接受藉由實施此策略,假設滿足用於容許流之所協商的QoS之所有訊包。在輸出佇列階段之前,MS會捨棄所需QoS超過所協商QoS(例如由通信資料速率所定義)之訊包。MS亦可實施一外部迴路機制,以根據運作條件調整審查參數。BS將「驗證」MS事實上與其所協商的速率相符。
3.將MS容許的一致訊包置於輸出佇列中。截止期限係根據訊包抵達時間與該服務(或流)的最大許可延遲相關聯於各訊包。MS較佳地可排列輸出佇列,使該等訊包按照截止期限的順序儲存,截止期限最早的在最前。MS必須管理其發送排程,以確保該等訊包在其截止期限之前發射。
4. MS根據與輸出佇列中的該等訊包相關聯的截止期限決定所需的資料速率。下述過程更為完整。因為要求MS決定的資料速率應滿足所協商的QoS,故所請求的資料速率並非僅為一「優先權」指示。若由於擁塞、過載控制或任何其他原因,基地台不能配置所需的速率,則藉由決定丟棄佇列中的哪些訊包,MS亦可計算一或多個擁塞資料速率,以輔助BS制定低於所需速率之配置。MS根據所需速率以及該佇列中將丟棄的訊包的數目決
定該擁塞速率。一般而言,當丟棄佇列中的一訊包時,則降低所需用以發射剩餘數目的訊包之資料速率。BS將所需與擁塞速率轉化為所需與擁塞T/P,或者MS可直接計算所需與擁塞T/P。
5. MS與BS進行針對所需與擁塞T/P或T/P增量或減量之通信。BS必須嘗試滿足受制於可用資源之T/P增量請求,因為MS需要此等資源以滿足其QoS準則。MS的若干連續T/P增量請求指示其優先權的增大,若不滿足該等請求將造成不滿足某QoS準則。
6. BS排程器根據反向鏈路資源(即熱雜訊的增量)與時間來堆疊此等T/P請求。該BS亦將某些資源留予已知延遲較低、頻寬連續的流,例如,語音呼叫。該BS將嘗試最佳化此種堆疊,例如,藉由延遲某些T/P配置或在較短持續時間內提供較高的T/P配置。若BS延遲對該MS的配置,則該MS後續的請求將請求更高的T/P以滿足用於易受延遲影響之訊包的QoS,因為發射該資料訊包的延遲越長,所需用以滿足相同QoS之發送資料速率則越高。因此,該BS在排程方面具有有限的靈活性。若具有多餘的可用頻寬,BS可選擇忽略降低T/P之請求,或提供高於所請求的T/P。
7. BS制定至MS的T/P配置。向MS的指示該配置為當前資料速率配置之增量(或減量)。
8.基於T/P配置,MS排程欲發送之訊包。MS基於最早截止期限在最前面之排程法則處理訊包,但可進行修改。例
如,在開始發送任何訊包之前,MS決定該資料訊包的發送是否在其截止期限之內。此決定為所配置的T/P與截止期限的函數,且用以說明將來增量配置之潛力。MS丟棄任何可能會錯過其發送截止期限的訊包。若訊包在其截止期限到期之前未能成功發射,則認為其遺失。該MS將追蹤與該流相關聯的訊包損失速率。
在此種架構中,該時間步驟2、3以及8之程序分別允許MS管理與其流相關聯的QoS(速率、最大延遲以及訊包損失保證)。時間步驟4與5之程序允許MS將其對所有流的需要合併為一個T/P需求。時間步驟1之BS容許控制程序確保BS在時間步驟6具有足夠的資源,以滿足所有MS的所有容許、協商的QoS流的需求。該MS決定滿足該QoS之所需資料速率。MS將用於多個(所協商的QoS)服務的佇列合併為一速率需求。此外,一般而言,該MS可直接以所需T/P工作,而非決定所需速率再轉化為所需T/P。其更為普遍,因為其很容易實施具有不同的從T/P至速率之映射的不同服務之訊包的發送。
假設在一時間t0
,MS佇列係由尺寸為si
之訊包Pi
組成,其中{i=1,…,N},其按照截止期限di
排列。各訊包Pi
與一資料服務k(i)相關聯。對於資料服務k而言,將已知資料速率至T/P的映射定義為:Rk
(T/P)。然後,在配置的T/P值為T0
時,將定義並決定下列等式。若速率為Rk(i)
(T0
),訊包Pi
的空中發送時間,xi
為:xi
=si
/Rk(i)
(T0
),(1)
因為已經按照其截止期限的順序排列該等訊包,故訊包Pi
完成其發送係在zi
=t0
+Σsj
/Rk(j)
(T0
),其中在[1,…, i]範圍中求和。(2)
即,截止期限先於di
之訊包P1
,…,Pi-1
在Pi
之前發射。因此,該程序將決定該MS輸出佇列中的任何訊包是否將錯過其截止期限,即zi
>di
,其中1iN (3)
若該MS決定以當前速率,其佇列中的任何訊包將錯過其截止期限,則其可能需要一較高速率以滿足其QoS。注意:此種資料速率計算使用與該MS佇列中的每個訊包相關聯的截止期限資訊。該BS不能僅基於backlog與QoS類做出此種資料速率之決定。
存在若干方式向BS提供所需的T/P資訊。取決於請求通道的設計以及從MS至BS之請求資訊的發送頻率,計算MS所需的持續時間並向該BS提供指示亦較為有用。上述等式2亦允許該MS決定所需持續時間。基本上,以配置的T/P比率T0
,MS佇列中最後的訊包將在時間zN
完成其發送。因此,基於當前訊包佇列以及所配置的速率,該所需持續時間為zN
。可以非常小的計算負擔更新等式2。例如,若在隨後時間t1
,完成訊包P1
的發送,所配置的T/P變為T1
,將更新的訊包完成瞬間寫為:z1
(t1
)=t1
+Σsj
/Rk(j)
(T1
),其中在[2,…,i]範圍中求和。(4)
使用下列等式根據先前訊包完成時間計算此等完成時間:
zi
(t1
)-t1
=zi
(t0
)-t0
-s1
/Rk(1)
(T0
)+Σsj
[1/Rk(j)
(T1
)-1/Rk(j)
(T0
)] (5)
其次,假定尺寸為snew
、服務k(新)且截止期限為dnew
之新訊包Pnew
於時間t2
抵達。一般而言,新訊包的截止期限在訊包k與k+1的(有序的)截止期限之間,即,若k<N,則dk dnew
<dk+1
。然後,若ik,則zi
(t2
)不變。若T/P的值T1
不變,則zi
(t2
)==zi
(t1
)+Snew
/Rk(new)
(T1
)若i>k (6)
因此,MS能夠計算並保持更新其所需的T/P,所需持續時間,及其佇列中訊包的發送排程。
為輔助BS制定擁塞週期期間的速率配置,MS亦可藉由決定丟棄其佇列中的哪些訊包來計算擁塞速率。該MS將使用許多的準則來設定可丟棄訊包的優先權:˙來自允許丟棄訊包之服務的訊包,˙來自其當前訊包損失速率小於所協商訊包損失速率之服務的訊包,˙若不配置所需的T/P,則可能會錯過其延遲截止期限的訊包。
根據丟棄優先權,MS可在其仍然滿足在各種擁塞位準的可接受QoS時,決定哪些訊包可能會被丟棄。然後,該MS將等式(1)至(3)應用於藉由從MS佇列中移除此等訊包而形成之虛擬佇列,以計算該擁塞T/P值。注意,全文中,訊包資料與資料區塊可互換。
若T/P至速率的映射固定,則使用資料速率更為便利且作用相同。以下顯示圖形化說明所需與擁塞資料速率計算之
示意圖。亦圖形化顯示訊包尺寸與截止期限。各訊包的尺寸(以位元為單位)以放置在一時間訊框軸上其截止期限所在處之垂直條來顯示。垂直條的尺寸代表訊包尺寸。繞原點轉動之任何斜率為正的線對應於一速率(以位元/秒為單位)。原點為當前時間或配置開始的時間。所需速率為滿足所有截止期限的最小斜率,即,可使圖中所有訊包在此線之下的最小斜率。同樣,MS計算擁塞速率時,假定可丟棄該佇列中的第一訊包(擁塞位準1),且一擁塞速率與丟棄該佇列中的最大MS訊包相關聯(擁塞位準2)。
在時間t0
,MS佇列係由尺寸為si
之訊包Pi組成,{i=1,…,N},其以截止期限di
排列。然後,可以所配置的速率R0
寫下列等式。以速率R0
,訊包Pi
之空中發送時間xi
為:xi
=si
/R0
(7)
因為已經按照其截止期限的順序排列該等訊包,故訊包Pi
完成其發送係在zi
=t0
+Σsj
/R0
,其中在[1,…,i]範圍中求和。(8)
即,截止期限先於di
之訊包P1
,…,Pi-1
在Pi
之前發射。因此,該程序將決定該MS輸出佇列中的任何訊包是否將錯過其截止期限,即zi
>di
,其中1iN (9)
若該MS決定其佇列中的任何訊包將錯過其截止期限,則其可能需要一較高速率以滿足其QoS。此種資料速率計算使用與該MS佇列中的每個訊包相關聯的截止期限資訊。該BS不能僅根據backlog與QoS類做出此速率之決定。
存在若干方式向BS提供所需的速率資訊。取決於請求通道的設計以及從MS至BS之請求資訊的發送頻率,計算在MS處所需的持續時間並向該BS提供指示亦較為有用。上述(等式2)亦允許該MS決定所需持續時間。基本上,以配置的速率R0
,MS佇列中的最後訊包將在時間zN
完成其發送。因此,根據當前訊包佇列以及所配置的速率,該所需持續時間為zN
。可以非常小的計算負擔更新等式(2)。例如,若在隨後時間t1
,完成訊包P1
的發送,所配置的速率變為R1
,將更新的訊包完成瞬間寫為:zi
(t1
)=t1
+Σsj
/R1
,其中在[2,…,i]範圍中求和。(10)
使用以下等式根據先前訊包完成時間計算此等完成時間
:zi
(t1
)-t1
=[(zi
(t0
)-t0
)R0
-s1
]/R1
(11)
然後,假定尺寸為snew
且截止期限為dnew
之新訊包Pnew
在時間t2
抵達。一般而言,新訊包的截止期限在訊包k與k+1的(有序的)截止期限之間,即,若k<N,則dk dnew
<dk+1
。然後,若ik,則zi
(t2
)不變。若速率R1
不變,則zi
(t2
)=zi
(t1
)+Snew
/R1
其中i>k (12)
因此,MS能夠計算並保持更新其所需的速率,所需持續時間,及其佇列中訊包的發送排程。
如上所示,藉由檢查MS緩衝器中所有訊包的延遲截止期限,MS能夠決定所需速率或T/P。或者,若MS僅檢查其緩衝器中的第一訊包,即,延遲截止期限最短的訊包,並應用上述T/P(速率)計算,結果等於回饋至BS的延遲截止期限。在此情形下,所計算的T/P(或速率)之值代表最短截止期限以及等效的最高優先權。將在以下段落中顯示用於反向鏈路通道之延遲截止期限的兩位元編碼(two-bit encoding)之範例,並使用該範例。
可透過訊息或使用連續低速率的速率控制通道將反向鏈路請求傳送至BS。將考量並使用下列方案:
˙使用反向鏈路訊息向BS提供佇列長度或backlog資訊。為了QoS支援,應將QoS欄位添加到此請求訊息中。
˙連續的T/P或速率請求通道,其中MS週期性地插入一位元,指示對更高速率之請求。其不向BS提供任何QoS的指示。
BS管理的資源包括流量通道與前導功率比率(T/P)。一般而言,較高的T/P比率映射至較高的資料速率。該系統允許T/P比率與對應的資料速率之間有一個以上的映射方案。一般而言,MS始終選擇使反向鏈路通量最大化之資料速率至T/P的映射。對於具有短交易與非常低的延遲需求的某些服務(例如,交互遊戲)而言,需要以較少的重新發送以及較高的T/P來運作。因此,若該MS的佇列之頭部的資料訊包具有非常短的截止期限(例如,短於40毫秒),則MS將選擇適用於低延遲服務之特定速率至T/P映射。可使用速率,且將其映射至T/P、或直接計算所需T/P來操作該方案。
為允許BS資源管理器在擁塞週期內設定配置的優先權,除了所需T/P之外,MS亦可向BS指示一或多個擁塞T/P之值。BS嘗試公平地為所有MS配置所需的T/P。若所需資源超過可用資源,該BS將在一時間將一個MS所需的T/P(以BS所決定之某種順序),變為與擁塞位準1相關聯之較小T/P,直至所有行動台的總配置降至可用資源以內。若必要,該BS可移動至與擁塞位準2相關聯之T/P等。所需T/P或資料速率以及擁塞T/P或速率的指示可透過短控制訊息、連續訊息或其組合進行通信。
在至BS的請求訊息中,可基於在MS上的計算來提供所需T/P及其持續時間。此種請求訊息可不包括回饋至BS的backlog與QoS。BS不能基於backlog與QoS類計算所需T/P及其持續時間。為管理QoS(速率、訊包損失、最大延遲),請求T/P及其持續時間的週期性訊息較佳為backlog與QoS
類的週期性回饋。作為回應,BS可藉由核准訊息制定對MS的T/P與持續時間的配置。該MS繼續更新其(本地)速率與持續時間的計算。無論何時,只要在所需T/P中出現顯著變化,或所需持續時間超過所配置的持續時間一顯著量,即觸發一更新請求。具有零T/P配置之核准指示MS核准的終止。
一旦為MS核准一T/P,為降低請求訊息費用,可利用低頻寬連續反向鏈路請求通道。該MS保持基於來自BS的核准之當前核准(Current Grant)變數。或者,該核准可能為隱含的,即允許任何MS自主將其當前核准變數設定為當前核准的全局(初始)值,藉此消除對任何訊息的需求。
基於對所需速率的計算,MS連續傳送請求,用以使其當前核准增大、降低或不變。若需要增量以滿足在各種擁塞位準的T/P,則亦指示對增大的T/P之請求。在此訊息中可包括對2位元差動速率請求(Differential Rate Request)欄位的編碼。該MS指示其與所需速率與擁塞速率相關之當前核准的位準,例如,若當前核准在所需T/P與擁塞位準1 T/P之間,則MS請求包括編碼的位元「10」。或者,可包括2位元差動速率請求(2-bit Differential Rate Request)欄位,其僅包含1個擁塞位準以及防止緩衝器因易受延遲影響之流量而下溢之新位準。
視需要,亦可定義預看長期核准臨界值D0
。若MS計算其所需持續時間超過D0
,則其指示對長期核准之請求。其有一定作用,因其允許BS預看並藉此更好地管理其資料配置以及排程決策。對於排程器而言,對高速率之請求為「優先權」請求,而對長期核准之請求則指示backlog。
或者,可使用兩個位元代表該佇列頭部訊包的延遲截止期限(或優先權等級)。例如:
X為系統參數,可針對BS固定其值,或根據每個MS之服務的混和來固定其值。
該MS使用當前核准T/P值在該反向鏈路上發射。該BS根據當前發送決定該MS上的當前核准變數之值。該BS藉由測量流量通道功率與該MS發送的前導功率間的比率,或根據該MS用以發送之速率並將其映射至T/P,來決定此值。
該BS資源管理器使用該MS使用的當前T/P,以及該T/P請求中的資訊,以在MS中公平配置T/P。例如,根據該擁塞位準,其僅能滿足所有MS的擁塞位準1的需求。然後,該BS將為其請求指示00或01的MS配置T/P增量,且指示00之MS請求有較高優先權。該BS將為其請求指示11或10的MS配置T/P減量。該BS亦可使用額外的準則來管理MS之間的競爭。
可藉由下列範例解釋該BS資源管理器的操作。考量具有三個MS之情形:
MS 1:Ec_前導[1],當前核准[1],請求=10
MS 2:Ec_前導[2],當前核准[2],請求=01
MS 3:Ec_前導[3],當前核准[3],請求=01
MS 4:Ec_前導[4],當前核准[4],請求=11
MS 5:Ec_前導[5],當前核准[5],請求=00
MS 6:Ec_前導[6],當前核准[6],請求=10
注意,在以上範例中,所有的MS,除了MS 4之外,皆需
要高於當前核准之T/P,以滿足所需T/P。可為MS 4指派對其當前核准之一減量。是否向其他MS提供增量配置,取決於進一步的計算。該BS資源管理器能夠根據各MS的Ec_前導與當前核准計算當前的資源利用,如下所示:Resource Utilization=Σ Ec_Pilot[i]*[Current Grant [i]+1] (13)
該BS核准與當前核准相關的一增量(向上調整)或一減量(向下調整)。該增量或減量為當前核准的乘法因數,其值Adjust[i]分別由(1+a)或(1-a)所給。然後,遵循配置,可計算更新的資源利用,如:Resource Utilization=Σ Ec_Pilot[i]*[Adjust[i]*Current Grant[i]+1](14)
藉由下列步,驟實行該資源管理器演算法。其終止於在更新的資源利用低於最大資源利用臨界值Tmax處求出一組調整值Adjust[i]之步驟。
步驟1
為MS 4指派減量,為所有其他MS指派增量。若i=1、2、3、5、6,則Adjust[4]=1-a,Adjust[i]=1+a。此配置嘗試移動所有MS以滿足其所需的T/P。決定更新的資源利用。若更新的資源利用低於最大臨界值Tmax,則可允許並指派此項配置。若資源利用超過Tmax,則進行至步驟2。
步驟2
不可能使所有的MS向所需T/P移動。為公平起見,該程序使所有的MS向擁塞位準1 T/P移動。這意味著,除了MS 4以外,亦為MS 1與MS 6指派一向下調整。即,若i=1、4、6,則Adjust[i]=1-a,若i=2、3、5,則Adjust[i]=1+a。再次決定是否允許此更新資源配置,即,不超過所允許的總配置。若不允許,則進行至步驟3。
步驟3
不可能使所有的MS向擁塞位準1 T/P移動。為公平起見,該程序使所有的MS向擁塞位準2 T/P移動。這意味著,為除了MS 5之外的所有的MS指派一向下調整。即,若i=1、2、3、4、6,則Adjust[i]=1-a,且Adjust[5]=1+a。再次決定是否允許此更新資源配置,即,不超過所允許的總配置。若不允許,則進行至步驟4。
步驟4
該BS T/P調整演算法不能決定一滿意的配置。需要明確訊息以終止來自一個或多個MS的發送。該BS根據各種準則選擇終止哪個核准,其包括:公平性,以及對MS當前配置的尺寸。
可使用低頻寬連續正向鏈路核准通道,以向MS指示對當前核准的調整。該MS根據其從該BS接收的實際核准(以及調整)修改其當前核准變數。因為核准向MS連續延伸,故不需要向MS指示一長期核准。該長期核准請求(若使用)僅允許該BS可預看,並因此制定更好的排程決策。
在該低頻寬連續正向鏈路核准通道上的編碼如下所示:+1
若命令該行動台使T/P增大所配置的量,(亦可為T/P依賴)
-1
若命令該行動台使T/P降低所配置的量,(亦可為T/P依賴)
0
若命令該行動台保持T/P不變。
若BS不能可靠地解碼該連續請求通道(例如,以低功率接收反向前導通道(reverse pilot channel;R-PICH)並抹除連續的請求通道符號),則BS將正向核准通道符號設定為0。否
則,若能可靠地解碼該連續請求通道,則BS將適當地設定該正向核准通道符號。
雖然該BS資源管理器基於該MS請求決定該擁塞位準,而並非每個MS需要一連續核准通道,但藉由損失一定的靈活性,可能可使用僅指示BS上當前所計算的擁塞位準之連續共同核准通道(例如,作為以上所示三個位準之一來編碼)。基於此種指示,MS可根據相同的邏輯自主調整其資料速率。例如,當BS共同核准指示擁塞位準1時,請求10的MS必需降低其T/P,而請求01的MS可增大其T/P,用於隨後的發送。此外,降低該正向鏈路上的費用時,連續共同核准通道使BS不具備基於額外的準則以在競爭MS間辨別之能力。亦可能消除該連續請求通道,並將其降低為MS的自主操作。該BS的擁塞指示係基於對該MS資源使用的當前測量,而非MS請求。因此,不存在用於每個MS的閉合迴路。在此情形下,該BS不能區別滿足其QoS的MS與不滿足其QoS的MS,故無法實現公平。
如此,連續請求與核准通道中的發信錯誤並非災難性的。假定在該連續正向核准通道上的抹除(erasure)為使當前核准不變之命令。由於低延遲閉合迴路機制,可很快藉由隨後的請求與核准校正任何發信錯誤。特定言之,在每個反向鏈路訊框發送中,該BS已知MS上的本地變數當前核准,且允許該控制迴路的兩側保持相同的狀態。
可能僅使用該請求與核准訊息,以操作該反向鏈路QoS管理。然而,對於嚴格QoS管理而言,即為具有叢發抵達、
可變速率以及嚴格延遲約束之服務管理QoS,必需使用連續請求與核准通道。注意,可使用該連續請求通道,而不使用連續核准通道。
對於所協商的QoS流量,MS可如下操作:
˙MS傳送指示該所需T/P(以及擁塞T/P)之請求訊息。該請求訊息亦可包含最大T/P(在該MS中的裕度)。該BS可藉由訊息指示T/P核准,或者可隱含指示該核准(已知初始T/P)。在後者情形中,不需要請求或核准訊息。
˙在低費用連續速率請求通道上指示所需T/P的變化。以層3發信建立或釋放該通道。因為此通道代表該MS的總速率需求,故每個MS僅需要一個此種通道。
˙該基地台在正向鏈路上的低費用連續核准通道上指示所核准T/P的變化。或者,可使用低費用連續共同核准通道,其基於所接收的請求指示該擁塞位準。
在軟交遞操作期間,基於訊息的反向資源管理僅由伺服BS控制(該BS具有在MS所接收的最高平均前導位準)。該連續請求與核准通道僅由伺服BS或由縮小的BS的現用集來接收或發射。若僅由伺服BS發射該連續核准通道,則軟交遞中的操作與行動台不進行軟交遞時的情形並無不同。然而,若從該現用集中一個以上的BS發射該正向快速核准通道,則不同的BS可獨立操作且產生不同的核准命令。然後,要求該MS將其當前核准變數調整至該現用集中所有的BS皆核准之速率調整的最小值。
每個MS用於連續請求與核准通道之費用可與每數百毫
秒使用一次基於訊息之通道的費用相比擬。因此,為符合費用要求,不需以高於(例如)每個MS 250毫秒之頻率傳送速率請求與速率核准訊息,其包括該MS中的所有服務。需要連續回饋通道來管理服務的QoS,其中最大延遲低於(例如)100毫秒。即便對於具有叢發抵達之服務,其中該佇列尺寸可出現數十毫秒的顯著變化。若延遲截止期限大於250毫秒,則藉由基於訊息之請求與核准通道管理該QoS。每20至40毫秒,將需要用於連續反向速率請求通道之2至4個位元。此等位元向BS指示所請求對其分配的速率之修改與/或對長期核准之需要。
一般而言,揭示用於在該反向鏈路上進行QoS與資源管理之架構,其中該訊包佇列在MS上分佈,且該中央資源管理器在該BS上。在此架構中,將反向鏈路QoS管理的責任指派給MS,而BS管理用於所協商的QoS服務之集中資源與容許控制。該MS向該資源管理器提供所需的資源(速率或T/P),其用以滿足該MS的QoS。其有別於先前MS向該資源管理器提供佇列backlog資訊之方法。該佇列backlog資訊對於資源管理器用以滿足QoS保證而言,並不充分。透過MS對所配置的速率或T/P的閉合迴路控制管理反向鏈路QoS。將對多個服務(或流)的QoS需求合併為一資源(速率或T/P)的壓縮表示。其允許有效的閉合迴路控制(低通信費用)。其允許該MS決定一所需的T/P,這將允許其滿足所有服務的QoS需求。在訊包離開、訊包抵達、所配置速率變化或鏈路品質變化之後,可使用低複雜度機制重新計算速率(或T/P)
以及持續時間需求。與該架構一致的低費用連續請求與核准通道適用於為最大延遲需求低於100毫秒之服務管理其QoS。揭示一種藉由使用訊包的丟棄優先權,以計算用於不同擁塞位準之T/P需求之程序。揭示一種速率請求通道的壓縮編碼,其向該BS資源管理器提供資訊,用以決定分佈在MS間的訊包佇列中的擁塞位準。另外,其允許該BS資源管理器制定競爭MS間的智慧配置決策。因此,操作該BS資源管理器以在競爭MS間配置資源,包括軟交遞中對閉合迴路速率控制的操作。
參考圖4描述的各種步驟,可更加明瞭本發明的各種方面。圖4描述通信系統100中BS與MS上訊息流400與處理步驟。當併入通信系統100的各別的基地台或行動台時,可操作圖2與3所示之接收器與發射器系統200與300以實行各種步驟。在步驟401,該行動台為數個通信服務決定發送的資料訊包。在步驟402與403,該行動台分別決定各個資料訊包的發送截止期限,並按照所決定的發送截止期限排列發送佇列中的資料訊包。在步驟405、406與407中,該行動台分別根據允許滿足各個資料訊包的發送截止期限之佇列中資料訊包的排列,決定發送資料訊包之資料速率,根據該佇列中資料訊包的排列,決定發送資料訊包之所決定資料速率的持續時間,並進行從該行動台至該基地台之資料速率與持續時間的通信。在步驟408,該基地台決定是否允許在基地台配置可用資源,用於從該行動台以決定的資料速率與持續時間發送。在步驟409,該基地台進行從該行動台
發送資料訊包之所決定資料速率的可接受度之通信。在步驟410,該行動台以可接受資料速率進行發射。在步驟411,該基地台可向該行動台指示一擁塞位準警示,不允許在該基地台上配置所決定的可用資源,用於從該行動台以所決定的資料速率進行發送。在步驟412、413與414中,該行動台丟棄該佇列中該等資料訊包中的至少一個資料訊包,以決定一新的資料訊包佇列,決定發送該新的資料訊包佇列之新的資料速率,該新的資料速率低於先前所決定之資料速率,並根據該新佇列中資料訊包的排列,決定使用所決定的新資料速率發送資料訊包的新持續時間。流400進行至步驟408,以重複決定接受或拒絕。
熟習此項技術者應進一步明白,配合本文所揭示之具體實施例說明的各種說明邏輯區塊、模組、電路及演算法步驟可實施為電子硬體、電腦軟體或二者之組合。為了清楚說明硬體及軟體之此互通性,以上已就其功能性總體說明各種說明性組件、區塊、模組、電路及步驟。此類功能係實施為硬體或軟體取決於整體系統所用的特定應用及設計限制。熟習此項技術者可採用各種方法實施各特定應用所說明之功能,但此類實施決策不應解釋為會引起背離本發明之範疇。
結合在此揭示的具體實施例所說明的各種說明性邏輯區塊、模組及電路,可採用通用處理器、一數位信號處理器(digital signal processor; DSP)、一特殊應用積體電路(application specific integrated circuit; ASIC)、一現場可程
式化閘極陣列(field programmable gate array; FPGA)或其他可程式化邏輯構件、離散閘極或電晶體邏輯、離散硬體組件或設計用以實行本文所述功能之任何組合來實施或實行。通用處理器可為微處理器,但在替代範例中,處理器可為任何傳統處理器、控制器、微控制器或狀態機。一處理器也可實施為電腦構件之一組合,例如,一DSP及一微處理器之一組合、複數個微處理器、與DSP核心連接的一或多個微處理器或任何其他此類配置。
結合本文所揭示具體實施例說明的方法或演算法的步驟可以直接用硬體、由處理器執行的軟體模組或兩者之組合來實現。軟體模組可駐留於RAM記憶體、快閃記憶體、ROM記憶體、EPROM記憶體、EEPROM記憶體、暫存器、硬碟、可抽取磁碟、CD-ROM、或此項技術中所熟知之任何其他形式的儲存媒體中。一種範例性儲存媒體係耦合處理器,以致於處理器可自儲存媒體中讀取資訊,以及寫入資訊到儲存媒體。在替代範例中,該儲存媒體可與該處理器整合。該處理器及該儲存媒體可駐留於一ASIC中。該ASIC可駐留於一使用者終端機之內。在替代範例中,該處理器及該儲存媒體可以分離組件的形式駐留於一使用者終端機內。
前文中提供較佳具體實施例的說明,讓熟習此項技術者可實施或使用本發明。熟習此項技術者應明白這些具體實施例的各種修改,並且本文中定義的一般原理可應用於未使用本發明功能的其他具體實施例。因此,本發明並非欲受限於此處所示的具體實施例,而係符合與此處所揭示之
原理及新穎特徵相一致之最廣範疇。
100‧‧‧通信系統
101‧‧‧基地台
102、103、104‧‧‧行動台
105‧‧‧公共交換電話與資料網路
106‧‧‧正向鏈路信號
107、108、109‧‧‧反向鏈路信號
160‧‧‧基地台
161‧‧‧正向鏈路信號
199‧‧‧回程
200‧‧‧接收器
204‧‧‧RAM
206‧‧‧搜尋器單元
208‧‧‧指狀元件
210‧‧‧控制系統
212‧‧‧組合器
214‧‧‧解碼器
252‧‧‧多工器
290‧‧‧射頻/中頻系統
292‧‧‧天線系統
300‧‧‧發射器
301‧‧‧調變器
302‧‧‧組塊
303‧‧‧資料速率與功率位準選擇器
304‧‧‧天線
307‧‧‧組塊
308‧‧‧組合器
309‧‧‧放大器
上文已參考附圖作詳細說明,使本發明的功能、目的及優點更明白,整份圖式中相同的參考文字視為對應的相同事物,其中:圖1根據本發明的各個方面,描述用以發送與接收資料之通信系統;圖2根據本發明的各個方面,描述用以接受資料之接收器系統;圖3根據本發明的各個方面,描述用以發送資料之發射器系統;以及圖4描述用以決定反向鏈路通信的資料速率之訊息流與程序。
(無元件代表符號)
Claims (30)
- 一種用以在一通信系統(100)中決定從一行動台(102、103、104)至一基地台(101、160)之反向鏈路通信之一資料速率之方法,其包括:決定(401)從該行動台(102、103、104)發送之用於數個通信服務之資料訊包;決定(402)每個該等資料訊包的一發送截止期限;根據該決定的發送截止期限,排列(403)至少一發送佇列中的該等資料訊包;根據允許滿足每個該等資料訊包之該發送截止期限之該佇列中的該等資料訊包的該排列,來對每一經排列之佇列決定(405)發送該等資料訊包之一資料速率。
- 如申請專利範圍第1項之方法,其中該等資料訊包係排列在一個佇列中且一用於發送之資料速率係被決定。
- 如申請專利範圍第1或2項之方法,其進一步包括:進行從該行動台(102、103、104)至該基地台(101、160)之該資料速率的通信(407)。
- 如申請專利範圍第1或2項之方法,其進一步包括:根據該佇列中該等資料訊包的該排列,決定(406)使用該決定的資料速率發送該等資料訊包的持續時間。
- 如申請專利範圍第4項之方法,其進一步包括:進行從該行動台(102、103、104)至該基地台(101、160)之該決定的持續時間的通信(407)。
- 如申請專利範圍第1或2項之方法,其進一步包括: 決定(408)是否允許在該基地台(101、160)上配置可用資源,用以從該行動台(102、103、104)以該資料速率進行發送。
- 如申請專利範圍第6項之方法,其進一步包括:當該決定不允許在該基地台(101、160)上配置可用資源,用以從該行動台(102、103、104)以該資料速率發送時,向該行動台(102、103、104)指示(411)一擁塞位準警示。
- 如申請專利範圍第7項之方法,其進一步包括:丟棄(412)該佇列中該等資料訊包中的至少一個資料訊包,以決定一新資料訊包佇列;決定(413)用以發送該新資料訊包佇列之一新資料速率,其中該新資料速率係低於該資料速率。
- 如申請專利範圍第8項之方法,其進一步包括:根據該新佇列中該等資料訊包的該排列,決定(414)使用該決定的新資料速率發送該等資料訊包之一新持續時間。
- 如申請專利範圍第1項之方法,其中該等決定的資料速率包括一所需的資料速率以及至少一個擁塞位準資料速率。
- 如申請專利範圍第1項之方法,其進一步包括:進行從該行動台(102、103、104)至該基地台(101、160)之該等資料速率之通信(407)。
- 如申請專利範圍第1項之方法,其進一步包括:根據該佇列中該等資料訊包的該排列,決定(406)使用 每個該等決定的資料速率發送該等資料訊包之持續時間。
- 如申請專利範圍第12項之方法,其進一步包括:進行從該行動台(102、103、104)至該基地台(101、160)之該決定的持續時間之通信(407)。
- 如申請專利範圍第1項之方法,其進一步包括:決定(408)是否允許在該基地台(101、160)上配置可用資源,用以從該行動台(102、103、104)以該等資料速率中的至少一個進行發送。
- 如申請專利範圍第14項之方法,其進一步包括:當該決定允許在該基地台(101、160)上配置可用資源,用以從該行動台(102、103、104)以該等資料速率中的至少一個進行發送時,指示該行動台(102、103、104)。
- 一種用以在一通信系統(100)中決定從一行動台(102、103、104)至一基地台(101、160)之反向鏈路通信之一資料速率之裝置,其包括:決定構件,其用以決定從該行動台(102、103、104)發送之用於數個通信服務之資料訊包;決定構件,其用以決定每個該等資料訊包的一發送截止期限;排列構件,其用以根據該決定的發送截止期限,排列至少一發送佇列中的該等資料訊包;決定構件,其用以根據允許滿足每個該等資料訊包之該發送截止期限之該佇列中的該等資料訊包的該排列,來對每一經排列之佇列決定發送該等資料訊包之一資料速率。
- 如申請專利範圍第16項之裝置,其中該等資料訊包係排列在一個佇列中且一用於發送之資料速率係被決定。
- 如申請專利範圍第16或17項之裝置,其進一步包括:通信構件,其用以進行從該行動台(102、103、104)至該基地台(101、160)之該資料速率之通信。
- 如申請專利範圍第16或17項之裝置,其進一步包括:決定構件,其用以根據該佇列中該等資料訊包的該排列,決定使用該決定的資料速率發送該等資料訊包之持續時間。
- 如申請專利範圍第19項之裝置,其進一步包括:通信構件,其用以進行從該行動台(102、103、104)至該基地台(101、160)之該決定的持續時間之通信。
- 如申請專利範圍第16或17項之裝置,其進一步包括:決定構件,其用以決定是否允許在該基地台(101、160)上配置可用資源,用以從該行動台(102、103、104)以該資料速率發送。
- 如申請專利範圍第21項之裝置,其進一步包括:指示構件,其用以當該決定不允許在該基地台(101、160)上配置可用資源,用以從該行動台(102、103、104)以該資料速率發送時,向該行動台(102、103、104)指示一擁塞位準警示。
- 如申請專利範圍第22項之裝置,其進一步包括:丟棄構件,其用以丟棄該佇列中的該等資料訊包中的至少一個資料訊包,以決定一新資料訊包佇列; 決定構件,其用以決定用以發送該新資料訊包佇列之一新資料速率,其中該新資料速率係低於該資料速率。
- 如申請專利範圍第23項之裝置,其進一步包括:決定構件,其用以根據該新佇列中該等資料訊包的該排列,決定使用該決定的新資料速率發送該等資料訊包之一新持續時間。
- 如申請專利範圍第16項之裝置,其中該等決定的資料速率包括一所需的資料速率以及至少一個擁塞位準資料速率。
- 如申請專利範圍第16項之裝置,其進一步包括:通信構件,其用以進行從該行動台(102、103、104)至該基地台(101、160)之該等資料速率之通信。
- 如申請專利範圍第16項之裝置,其進一步包括:決定構件,其用以根據該佇列中該等資料訊包的該排列,決定使用每個該等決定的資料速率發送該等資料訊包之持續時間。
- 如申請專利範圍第27項之裝置,其進一步包括:通信構件,其用以進行從該行動台(102、103、104)至該基地台(101、160)之該決定的持續時間之通信。
- 如申請專利範圍第16項之裝置,其進一步包括:決定構件,其用以決定是否允許在該基地台上配置可用資源,用以從該行動台以該等資料速率中的至少一個進行發送。
- 如申請專利範圍第29項之裝置,其進一步包括:指示構件,其用以當該決定允許在該基地台(101、160) 上配置可用資源,用以從該行動台(102、103、104)以該等資料速率中的至少一個進行發送時,指示該行動台(102、103、104)。
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US10/628,955 US20040160922A1 (en) | 2003-02-18 | 2003-07-28 | Method and apparatus for controlling data rate of a reverse link in a communication system |
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Families Citing this family (72)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8149810B1 (en) | 2003-02-14 | 2012-04-03 | Marvell International Ltd. | Data rate adaptation in multiple-in-multiple-out systems |
US8391249B2 (en) | 2003-02-18 | 2013-03-05 | Qualcomm Incorporated | Code division multiplexing commands on a code division multiplexed channel |
US8150407B2 (en) * | 2003-02-18 | 2012-04-03 | Qualcomm Incorporated | System and method for scheduling transmissions in a wireless communication system |
US7660282B2 (en) | 2003-02-18 | 2010-02-09 | Qualcomm Incorporated | Congestion control in a wireless data network |
US7155236B2 (en) | 2003-02-18 | 2006-12-26 | Qualcomm Incorporated | Scheduled and autonomous transmission and acknowledgement |
US8081598B2 (en) | 2003-02-18 | 2011-12-20 | Qualcomm Incorporated | Outer-loop power control for wireless communication systems |
US8023950B2 (en) | 2003-02-18 | 2011-09-20 | Qualcomm Incorporated | Systems and methods for using selectable frame durations in a wireless communication system |
US20040160922A1 (en) | 2003-02-18 | 2004-08-19 | Sanjiv Nanda | Method and apparatus for controlling data rate of a reverse link in a communication system |
US8811348B2 (en) | 2003-02-24 | 2014-08-19 | Qualcomm Incorporated | Methods and apparatus for generating, communicating, and/or using information relating to self-noise |
US7218948B2 (en) | 2003-02-24 | 2007-05-15 | Qualcomm Incorporated | Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators |
US9661519B2 (en) | 2003-02-24 | 2017-05-23 | Qualcomm Incorporated | Efficient reporting of information in a wireless communication system |
US9544860B2 (en) | 2003-02-24 | 2017-01-10 | Qualcomm Incorporated | Pilot signals for use in multi-sector cells |
KR100640331B1 (ko) | 2003-03-05 | 2006-10-30 | 삼성전자주식회사 | 이동통신 시스템의 역방향 전송율 제어 방법 및 장치 |
US8705588B2 (en) | 2003-03-06 | 2014-04-22 | Qualcomm Incorporated | Systems and methods for using code space in spread-spectrum communications |
US7215930B2 (en) | 2003-03-06 | 2007-05-08 | Qualcomm, Incorporated | Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication |
US8477592B2 (en) | 2003-05-14 | 2013-07-02 | Qualcomm Incorporated | Interference and noise estimation in an OFDM system |
US7738901B2 (en) * | 2003-07-10 | 2010-06-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Secondary link power control in a wireless communication network |
US8489949B2 (en) | 2003-08-05 | 2013-07-16 | Qualcomm Incorporated | Combining grant, acknowledgement, and rate control commands |
US7864678B1 (en) | 2003-08-12 | 2011-01-04 | Marvell International Ltd. | Rate adaptation in wireless systems |
US20050041589A1 (en) * | 2003-08-21 | 2005-02-24 | Samsung Electronics Co., Ltd. | Method of controlling reverse link in a mobile communication system |
US7706403B2 (en) * | 2003-11-25 | 2010-04-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Queuing delay based rate control |
JP2007525889A (ja) * | 2004-02-03 | 2007-09-06 | ノキア コーポレイション | エンドツーエンドQoSを提供する方法及び装置 |
US20050185583A1 (en) * | 2004-02-19 | 2005-08-25 | Hosein Patrick A. | QoS management for multiple service instances |
US7697449B1 (en) | 2004-07-20 | 2010-04-13 | Marvell International Ltd. | Adaptively determining a data rate of packetized information transmission over a wireless channel |
KR100620713B1 (ko) * | 2004-07-28 | 2006-09-19 | 주식회사 팬택앤큐리텔 | 패킷 서비스 설정 제어 방법 및 이동통신 시스템 |
US8503938B2 (en) | 2004-10-14 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information including loading factors which can be used for interference control purposes |
NZ555079A (en) | 2004-10-14 | 2010-04-30 | Qualcomm Inc | Methods and apparatus for determining, communicating and using information which can be used for interference control purposes |
US8178194B2 (en) * | 2004-12-10 | 2012-05-15 | National Institute Of Advanced Industrial Science And Technology | Clay film product |
US7848298B2 (en) * | 2005-03-08 | 2010-12-07 | Qualcomm Incorporated | De-coupling forward and reverse link assignment for multi-carrier wireless communication systems |
US7742444B2 (en) | 2005-03-15 | 2010-06-22 | Qualcomm Incorporated | Multiple other sector information combining for power control in a wireless communication system |
JP5096324B2 (ja) * | 2005-06-01 | 2012-12-12 | ▲ホア▼▲ウェイ▼技術有限公司 | ワイヤレス通信システムにおいてサービス品質保証を提供するための方法及びシステム |
US8750908B2 (en) | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US9055552B2 (en) | 2005-06-16 | 2015-06-09 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
HUE030044T2 (en) | 2005-09-29 | 2017-04-28 | Nokia Technologies Oy | Applying equipment, process, and computer program product to increase data rate based on the ability to send at least one additional selected data unit |
US8989084B2 (en) | 2005-10-14 | 2015-03-24 | Qualcomm Incorporated | Methods and apparatus for broadcasting loading information corresponding to neighboring base stations |
US9191840B2 (en) | 2005-10-14 | 2015-11-17 | Qualcomm Incorporated | Methods and apparatus for determining, communicating and using information which can be used for interference control |
KR20080070042A (ko) | 2005-10-27 | 2008-07-29 | 퀄컴 인코포레이티드 | 무선 통신 시스템에서 넌-스틱키 할당을 프로세싱하는 방법및 장치 |
US20090207790A1 (en) | 2005-10-27 | 2009-08-20 | Qualcomm Incorporated | Method and apparatus for settingtuneawaystatus in an open state in wireless communication system |
US7672250B2 (en) * | 2005-11-16 | 2010-03-02 | Via Telecom Co., Ltd. | Multi-carrier wireless communication access terminal and data transmission method |
KR100736088B1 (ko) * | 2005-11-22 | 2007-07-06 | 삼성전자주식회사 | 무선 네트워크 장치 및 이를 위한 자원 할당 방법 |
US9148795B2 (en) | 2005-12-22 | 2015-09-29 | Qualcomm Incorporated | Methods and apparatus for flexible reporting of control information |
US8514771B2 (en) | 2005-12-22 | 2013-08-20 | Qualcomm Incorporated | Methods and apparatus for communicating and/or using transmission power information |
US9473265B2 (en) | 2005-12-22 | 2016-10-18 | Qualcomm Incorporated | Methods and apparatus for communicating information utilizing a plurality of dictionaries |
US9451491B2 (en) | 2005-12-22 | 2016-09-20 | Qualcomm Incorporated | Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system |
US8437251B2 (en) | 2005-12-22 | 2013-05-07 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
US9125093B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus related to custom control channel reporting formats |
US20070149132A1 (en) | 2005-12-22 | 2007-06-28 | Junyl Li | Methods and apparatus related to selecting control channel reporting formats |
US9125092B2 (en) | 2005-12-22 | 2015-09-01 | Qualcomm Incorporated | Methods and apparatus for reporting and/or using control information |
US20070249360A1 (en) * | 2005-12-22 | 2007-10-25 | Arnab Das | Methods and aparatus related to determining, communicating, and/or using delay information in a wireless communications system |
US9338767B2 (en) * | 2005-12-22 | 2016-05-10 | Qualcomm Incorporated | Methods and apparatus of implementing and/or using a dedicated control channel |
US9137072B2 (en) | 2005-12-22 | 2015-09-15 | Qualcomm Incorporated | Methods and apparatus for communicating control information |
US9119220B2 (en) | 2005-12-22 | 2015-08-25 | Qualcomm Incorporated | Methods and apparatus for communicating backlog related information |
US9572179B2 (en) | 2005-12-22 | 2017-02-14 | Qualcomm Incorporated | Methods and apparatus for communicating transmission backlog information |
JP2007243405A (ja) * | 2006-03-07 | 2007-09-20 | Kddi Corp | 無線バッファ装置、無線通信装置及び無線バッファ制御方法 |
US20070243882A1 (en) | 2006-04-12 | 2007-10-18 | Qualcomm Incorporated | Method and apparatus for locating a wireless local area network associated with a wireless wide area network |
WO2007121568A1 (en) * | 2006-04-21 | 2007-11-01 | Nortel Networks Limited | Method and system for closed loop multiple input/output antenna environments in wireless communication |
KR101533240B1 (ko) * | 2008-08-25 | 2015-07-03 | 주식회사 팬택 | 이동통신 시스템에서 레이트 매칭을 제어하기 위한 레이트 매칭 장치 및 그 방법 |
CN101848501B (zh) * | 2009-03-27 | 2014-01-01 | 中兴通讯股份有限公司 | 载波聚合的实现方法以及基站 |
JP5297860B2 (ja) * | 2009-03-30 | 2013-09-25 | 株式会社日立製作所 | 移動体通信装置および移動体通信システム |
CN101998640B (zh) * | 2009-08-14 | 2015-06-03 | 中兴通讯股份有限公司 | 资源分配方法及基站 |
US10580088B2 (en) * | 2010-03-03 | 2020-03-03 | The Western Union Company | Vehicle travel monitoring and payment systems and methods |
US9641447B2 (en) | 2011-01-12 | 2017-05-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive relative bitrate manager for TCP depending flow control |
US8850008B2 (en) * | 2011-11-22 | 2014-09-30 | Verizon Patent And Licensing Inc. | User device application monitoring and control |
KR102023582B1 (ko) * | 2012-10-11 | 2019-11-04 | 삼성전자주식회사 | 무선 통신 시스템에서 청크 기반 스케줄링 방법 및 장치 |
EP3198931B1 (en) * | 2014-09-23 | 2020-10-21 | Nokia Solutions and Networks Oy | Transmitting data based on flow input from base station |
US10992589B2 (en) * | 2016-01-12 | 2021-04-27 | Qualcomm Incorporated | LTE based V2X communication QOS and congestion mitigation |
US11444850B2 (en) * | 2016-05-02 | 2022-09-13 | Huawei Technologies Co., Ltd. | Method and apparatus for communication network quality of service capability exposure |
CN109155944B (zh) * | 2016-05-13 | 2023-05-26 | 瑞典爱立信有限公司 | 在无线通信系统中推荐数据速率的系统和方法 |
US10778575B2 (en) * | 2017-02-20 | 2020-09-15 | Ge Aviation Systems Llc | Systems and methods for scheduling a message |
US10715437B2 (en) * | 2018-07-27 | 2020-07-14 | Intel Corporation | Deadline driven packet prioritization for IP networks |
US11223556B2 (en) * | 2019-06-04 | 2022-01-11 | Phantom Auto Inc. | Platform for redundant wireless communications optimization |
JP2022035159A (ja) * | 2020-08-20 | 2022-03-04 | 富士通株式会社 | タスク制御装置およびタスク制御方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134218A (en) * | 1994-04-28 | 2000-10-17 | Pmc-Sierra (Maryland), Inc. | Many dimensional congestion detection system and method |
WO2001006714A1 (en) * | 1999-07-15 | 2001-01-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Scheduling and admission control of packet data traffic |
EP0627827B1 (en) * | 1993-05-14 | 2001-10-31 | Telecom Italia Lab S.p.A. | Method of controlling transmission on a same radio channel of variable-rate information streams in radio communication systems, and radio communication system using this method |
WO2002041531A2 (en) * | 2000-11-15 | 2002-05-23 | Qualcomm Incorporated | Method and apparatus for allocating data streams onto a single channel |
Family Cites Families (344)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149518A (en) * | 1937-05-25 | 1939-03-07 | Sr Thomas Frank | Line holding device |
BE653080A (zh) | 1963-09-17 | 1964-12-31 | ||
US4768023A (en) | 1987-03-12 | 1988-08-30 | Xie Alex J | Diaper wetness signalling system |
JPH04111553A (ja) | 1990-08-30 | 1992-04-13 | Shimadzu Corp | Arq通信方式 |
BR9105987A (pt) | 1990-09-19 | 1993-02-02 | Philips Nv | Portador de registro no qual foram registrados um arquivo de dados principais e um arquivo de controle,processo e dispositivo para registrar um arquivo de dados principais e um arquivo de controle num portador de registro,e dispositivo para ter um portador de registro |
GB9023605D0 (en) * | 1990-10-30 | 1990-12-12 | British Telecomm | Digital radio |
IL100213A (en) * | 1990-12-07 | 1995-03-30 | Qualcomm Inc | Mikrata Kedma phone system and its antenna distribution system |
US5210770A (en) | 1991-09-27 | 1993-05-11 | Lockheed Missiles & Space Company, Inc. | Multiple-signal spread-spectrum transceiver |
ATE232540T1 (de) | 1991-11-22 | 2003-02-15 | Alcon Lab Inc | Angiostatische steroide |
EP0559348A3 (en) * | 1992-03-02 | 1993-11-03 | AT&T Corp. | Rate control loop processor for perceptual encoder/decoder |
JP3251640B2 (ja) | 1992-06-18 | 2002-01-28 | 株式会社東芝 | データ伝送方法とその装置 |
US5404355A (en) | 1992-10-05 | 1995-04-04 | Ericsson Ge Mobile Communications, Inc. | Method for transmitting broadcast information in a digital control channel |
US5406585A (en) * | 1992-11-30 | 1995-04-11 | Motorola, Inc. | Method and apparatus for trellis decoding in a multiple-access system |
DE4396373B4 (de) | 1992-12-14 | 2006-11-02 | Ironbar Pty. Ltd., Brisbane | Bindevorrichtung, Magazin, Gerät und Verfahren hierzu, sowie die Bindevorrichtung aufweisendes Stahlbeton-Bauwerk |
US5394433A (en) * | 1993-04-22 | 1995-02-28 | International Business Machines Corporation | Frequency hopping pattern assignment and control in multiple autonomous collocated radio networks |
US5553062A (en) * | 1993-04-22 | 1996-09-03 | Interdigital Communication Corporation | Spread spectrum CDMA interference canceler system and method |
JPH06350562A (ja) | 1993-06-08 | 1994-12-22 | Ricoh Co Ltd | スペクトル拡散通信方式 |
JP2888102B2 (ja) | 1993-08-26 | 1999-05-10 | 三菱電機株式会社 | 時間ダイバーシティ通信装置用送信機および受信機、並びに時間ダイバーシティ通信装置 |
ZA946674B (en) | 1993-09-08 | 1995-05-02 | Qualcomm Inc | Method and apparatus for determining the transmission data rate in a multi-user communication system |
US5463342A (en) | 1993-09-30 | 1995-10-31 | Westinghouse Electric Corp. | Method and apparatus for enhancing signal-to-noise ratio and improving sensitivity and signal detector employing same |
SE503548C2 (sv) | 1993-10-01 | 1996-07-01 | Telia Ab | Anordning i OFDM fleranvändarsystem |
US5490165A (en) * | 1993-10-28 | 1996-02-06 | Qualcomm Incorporated | Demodulation element assignment in a system capable of receiving multiple signals |
ZA948133B (en) * | 1993-10-28 | 1996-05-17 | Qualcomm Inc | Method and apparatus for reducing the average transmit power from a sectorized base station |
US6157668A (en) | 1993-10-28 | 2000-12-05 | Qualcomm Inc. | Method and apparatus for reducing the average transmit power of a base station |
ES2223046T3 (es) | 1993-11-01 | 2005-02-16 | Qualcomm Incorporated | Procedimiento y aparato para la transmision de datos digitales de velocidad variable. |
US5732391A (en) * | 1994-03-09 | 1998-03-24 | Motorola, Inc. | Method and apparatus of reducing processing steps in an audio compression system using psychoacoustic parameters |
US5544156A (en) | 1994-04-29 | 1996-08-06 | Telefonaktiebolaget Lm Ericsson | Direct sequence CDMA coherent uplink detector |
US5697053A (en) | 1994-07-28 | 1997-12-09 | Lucent Technologies Inc. | Method of power control and cell site selection |
KR0156478B1 (ko) | 1994-09-15 | 1998-11-16 | 구자홍 | 무선 전화기의 충전방법 및 그 장치 |
KR970011690B1 (ko) | 1994-11-22 | 1997-07-14 | 삼성전자 주식회사 | 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기 |
US5592470A (en) | 1994-12-21 | 1997-01-07 | At&T | Broadband wireless system and network architecture providing broadband/narrowband service with optimal static and dynamic bandwidth/channel allocation |
US5553083B1 (en) | 1995-01-19 | 2000-05-16 | Starburst Comm Corp | Method for quickly and reliably transmitting frames of data over communications links |
FR2730883B1 (fr) * | 1995-02-17 | 1997-04-04 | Alcatel Telspace | Dispositif d'initialisation d'un decodeur de viterbi compris dans un recepteur de signaux transmis sous forme de paquets emetteur, recepteur et procede correspondants |
JPH08298498A (ja) | 1995-04-26 | 1996-11-12 | Mitsubishi Electric Corp | マルチキャリア送信装置及び受信装置 |
FI98172C (fi) | 1995-05-24 | 1997-04-25 | Nokia Telecommunications Oy | Menetelmä pilottisignaalin lähettämiseksi ja solukkoradiojärjestelmä |
GB2301751B (en) | 1995-06-02 | 2000-02-09 | Dsc Communications | Control message transmission in telecommunications systems |
US6597913B2 (en) | 1995-06-05 | 2003-07-22 | Motorola, Inc. | Distributed dynamic channel management in cellular systems |
US6111911A (en) | 1995-06-07 | 2000-08-29 | Sanconix, Inc | Direct sequence frequency ambiguity resolving receiver |
US5726978A (en) * | 1995-06-22 | 1998-03-10 | Telefonaktiebolaget L M Ericsson Publ. | Adaptive channel allocation in a frequency division multiplexed system |
KR100331437B1 (ko) * | 1995-06-30 | 2002-08-08 | 삼성전자 주식회사 | 디.엠.티.시스템에서적응형비트교환방법및장치 |
US5752193A (en) * | 1995-09-01 | 1998-05-12 | Motorola, Inc. | Method and apparatus for communicating in a wireless communication system |
US6230203B1 (en) | 1995-10-20 | 2001-05-08 | Scientific-Atlanta, Inc. | System and method for providing statistics for flexible billing in a cable environment |
JPH09116475A (ja) | 1995-10-23 | 1997-05-02 | Nec Corp | 時間ダイバーシチ送受信システム |
JP2737730B2 (ja) | 1995-11-30 | 1998-04-08 | 日本電気株式会社 | スペクトル拡散送受信機 |
KR0170190B1 (ko) | 1995-12-06 | 1999-03-30 | 정선종 | 씨디엠에이 이동통신 시스템에서 트래픽 부하 제어방법 |
US5991271A (en) | 1995-12-20 | 1999-11-23 | Us West, Inc. | Signal-to-channel mapping for multi-channel, multi-signal transmission systems |
US5862451A (en) * | 1996-01-22 | 1999-01-19 | Motorola, Inc. | Channel quality management in a cable telephony system |
BR9707253A (pt) | 1996-01-31 | 1999-06-01 | Ipsilon Networks Inc | Processos de transmitir pacetes entre um nó a montante e um nó a jusante em uma rede e de comutar um fluxo em um primeiro nó produto de programa de computador unídade de comutação básica em um sistema para transmitir pacotes em uma rede unidade de porta de comutador e agente de comutação |
US5774809A (en) | 1996-02-12 | 1998-06-30 | Nokia Mobile Phones Limited | Simplified mobile assisted handoff of signal between cells |
US5754537A (en) * | 1996-03-08 | 1998-05-19 | Telefonaktiebolaget L M Ericsson (Publ) | Method and system for transmitting background noise data |
US6005876A (en) | 1996-03-08 | 1999-12-21 | At&T Corp | Method and apparatus for mobile data communication |
US6134215A (en) | 1996-04-02 | 2000-10-17 | Qualcomm Incorpoated | Using orthogonal waveforms to enable multiple transmitters to share a single CDM channel |
US5745480A (en) * | 1996-04-03 | 1998-04-28 | Adicom Wireless, Inc. | Multi-rate wireless communications system |
JP3385299B2 (ja) | 1996-05-20 | 2003-03-10 | 三菱電機株式会社 | スペクトル拡散通信装置 |
US6396804B2 (en) | 1996-05-28 | 2002-05-28 | Qualcomm Incorporated | High data rate CDMA wireless communication system |
US5859840A (en) | 1996-05-31 | 1999-01-12 | Qualcomm Incorporated | Spread spectrum communication system which defines channel groups comprising selected channels that are additional to a primary channel and transmits group messages during call set up |
US5938749A (en) | 1996-06-03 | 1999-08-17 | Whittaker Communications Inc. | Queue measurement apparatus and methodology |
JPH1013325A (ja) | 1996-06-19 | 1998-01-16 | Matsushita Electric Ind Co Ltd | 圏内/圏外判定装置 |
US6108384A (en) | 1996-06-24 | 2000-08-22 | Ntt Mobile Communications Network Inc. | Data transmittion method, data transmitting system and transmitter and receiver |
US6061359A (en) | 1996-08-02 | 2000-05-09 | Golden Bridge Technology, Inc. | Increased-capacity, packet spread-spectrum system and method |
US5647366A (en) | 1996-09-17 | 1997-07-15 | Siemens Medical Systems, Inc. | Method and system for automatic measurements of doppler waveforms |
US5764551A (en) | 1996-10-15 | 1998-06-09 | The United States Of America As Represented By The Secretary Of The Army | Fast high-signal-to-noise ratio equivalent time processor |
US6038216A (en) | 1996-11-01 | 2000-03-14 | Packeteer, Inc. | Method for explicit data rate control in a packet communication environment without data rate supervision |
US5809059A (en) | 1996-11-21 | 1998-09-15 | Motorola, Inc. | Method and apparatus for spread spectrum channel assignment |
US5956642A (en) | 1996-11-25 | 1999-09-21 | Telefonaktiebolaget L M Ericsson | Adaptive channel allocation method and apparatus for multi-slot, multi-carrier communication system |
JPH10173594A (ja) | 1996-12-06 | 1998-06-26 | Hitachi Ltd | 符号分割多元接続通信システム及び送信電力制御方法 |
US6046980A (en) * | 1996-12-09 | 2000-04-04 | Packeteer, Inc. | System for managing flow bandwidth utilization at network, transport and application layers in store and forward network |
US5987326A (en) | 1997-02-11 | 1999-11-16 | Qualcomm Incorporated | Transmit power reduction for a high speed CDMA link in soft handoff |
US6335922B1 (en) * | 1997-02-11 | 2002-01-01 | Qualcomm Incorporated | Method and apparatus for forward link rate scheduling |
US5991284A (en) | 1997-02-13 | 1999-11-23 | Qualcomm Inc. | Subchannel control loop |
RU2115246C1 (ru) | 1997-04-07 | 1998-07-10 | Военная академия связи | Способ и устройство управления передачей пакетов данных в канале связи общего пользования |
US5914950A (en) | 1997-04-08 | 1999-06-22 | Qualcomm Incorporated | Method and apparatus for reverse link rate scheduling |
US5923650A (en) | 1997-04-08 | 1999-07-13 | Qualcomm Incorporated | Method and apparatus for reverse link rate scheduling |
KR100236982B1 (ko) | 1997-04-25 | 2000-01-15 | 정선종 | 부호 분할 다중 접속 방식 이동 통신 시스템에서 이동 단말의 핸드 오프 제어 방법 |
US6396867B1 (en) * | 1997-04-25 | 2002-05-28 | Qualcomm Incorporated | Method and apparatus for forward link power control |
US6052594A (en) * | 1997-04-30 | 2000-04-18 | At&T Corp. | System and method for dynamically assigning channels for wireless packet communications |
US5991273A (en) | 1997-05-01 | 1999-11-23 | Nortel Networks Corporation | Determining SINR in a communications system |
US6009122A (en) | 1997-05-12 | 1999-12-28 | Amati Communciations Corporation | Method and apparatus for superframe bit allocation |
EP0981914B1 (en) | 1997-05-14 | 2007-07-25 | QUALCOMM Incorporated | Subscriber unit with plural control and data sources for cdma wireless communication system |
KR100214293B1 (ko) | 1997-05-29 | 1999-08-02 | 윤종용 | Cdma 셀룰라 시스템에서의 소프트 스왑 핸드오프 방법 |
US6064692A (en) | 1997-06-20 | 2000-05-16 | Amati Communications Corporation | Protocol for transceiver initialization |
US6426960B2 (en) | 1997-06-24 | 2002-07-30 | Qualcomm Incorporated | Increased capacity data transmission in a CDMA wireless communication system |
US6115357A (en) | 1997-07-01 | 2000-09-05 | Packeteer, Inc. | Method for pacing data flow in a packet-based network |
KR100247967B1 (ko) | 1997-07-09 | 2000-03-15 | 윤종용 | 동일채널간섭검출기와그방법 |
US6222875B1 (en) * | 1997-07-11 | 2001-04-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Low-delay rate detection for variable rate communication systems |
US6285669B1 (en) | 1997-07-17 | 2001-09-04 | Nortel Networks Limited | CDMA direct spread overlay system and method of operation |
FI104143B (fi) * | 1997-07-31 | 1999-11-15 | Nokia Networks Oy | Menetelmä tietoliikenneresurssien kontrolloimiseksi |
KR100264862B1 (ko) | 1997-07-31 | 2000-09-01 | 윤종용 | 대역확산에따른직교부호도약다중접속방식통신시스템의송수신장치및그방법 |
US6031865A (en) | 1997-08-04 | 2000-02-29 | Motorola, Inc. | Rapidly decorrelating spreading sequences for DS-CDMA transceivers |
US20010012271A1 (en) | 1997-08-04 | 2001-08-09 | Arthur W. Berger | Improved acknowledgement of bandwidth requests for the block transfer of data |
US6108374A (en) | 1997-08-25 | 2000-08-22 | Lucent Technologies, Inc. | System and method for measuring channel quality information |
US6131016A (en) | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
US5956368A (en) | 1997-08-29 | 1999-09-21 | Telefonaktiebolaget Lm Ericsson | Downlink channel handling within a spread spectrum communications system |
US6144654A (en) | 1997-09-03 | 2000-11-07 | Motorola, Inc. | Method of combining and separating groups of multiple CDMA-encoded data signals and apparatus therefor |
EP0902563B1 (en) | 1997-09-09 | 2006-01-25 | Sony Deutschland GmbH | Detection method for the transmitter identification information signal in the null symbol of a DAB stream |
FI973650A (fi) * | 1997-09-10 | 1999-03-11 | Nokia Mobile Phones Ltd | Menetelmä ja järjestely erikoissolutietojen siirtämiseksi solukkoradiojärjestelmässä |
US6389000B1 (en) | 1997-09-16 | 2002-05-14 | Qualcomm Incorporated | Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers |
US6377809B1 (en) | 1997-09-16 | 2002-04-23 | Qualcomm Incorporated | Channel structure for communication systems |
US6130882A (en) | 1997-09-25 | 2000-10-10 | Motorola, Inc. | Method and apparatus for configuring a communication system |
US6567416B1 (en) | 1997-10-14 | 2003-05-20 | Lucent Technologies Inc. | Method for access control in a multiple access system for communications networks |
US6574211B2 (en) | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
US6101168A (en) | 1997-11-13 | 2000-08-08 | Qualcomm Inc. | Method and apparatus for time efficient retransmission using symbol accumulation |
US5857174A (en) * | 1997-11-21 | 1999-01-05 | Dugan; John W. | Real estate appraisal method and device for standardizing real property marketing analysis by using pre-adjusted appraised comparable sales |
KR100246537B1 (ko) * | 1997-11-25 | 2000-03-15 | 정선종 | 코드분할 다중접속 시스템에서 파일럿 심벌을 이용한 동기식이중 채널 큐피에스케이 송수신기의 구조 |
KR100269593B1 (ko) | 1997-12-02 | 2000-10-16 | 정선종 | 다중 채널을 위한 직교 복소 확산 방법 및 그 장치 |
US6128283A (en) | 1997-12-03 | 2000-10-03 | Nortel Networks Corporation | Method and apparatus for data transmission using a positive group acknowledgement protocol |
US6094459A (en) | 1997-12-16 | 2000-07-25 | Integrated Telecom Express | Circuit for configuring data and energy parameters in a multi-channel communications system |
US6084917A (en) * | 1997-12-16 | 2000-07-04 | Integrated Telecom Express | Circuit for configuring and dynamically adapting data and energy parameters in a multi-channel communications system |
JP3778397B2 (ja) | 1997-12-27 | 2006-05-24 | ソニー株式会社 | 送信方法、送信電力制御方法及び基地局装置 |
US6088387A (en) | 1997-12-31 | 2000-07-11 | At&T Corp. | Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder |
US6259746B1 (en) | 1998-01-14 | 2001-07-10 | Motorola Inc. | Method for allocating data and power in a discrete multi-tone communication system |
US6141388A (en) | 1998-03-11 | 2000-10-31 | Ericsson Inc. | Received signal quality determination method and systems for convolutionally encoded communication channels |
US6201954B1 (en) * | 1998-03-25 | 2001-03-13 | Qualcomm Inc. | Method and system for providing an estimate of the signal strength of a received signal |
KR100338662B1 (ko) | 1998-03-31 | 2002-07-18 | 윤종용 | 부호분할다중접속통신시스템의채널통신장치및방법 |
US5973642A (en) | 1998-04-01 | 1999-10-26 | At&T Corp. | Adaptive antenna arrays for orthogonal frequency division multiplexing systems with co-channel interference |
JP3028800B2 (ja) | 1998-05-01 | 2000-04-04 | 日本電気株式会社 | Cdmaセルラシステム及びcdmaセルラシステムにおける拡散符号検出方法 |
ES2328992T3 (es) * | 1998-05-04 | 2009-11-19 | Nokia Corporation | Procedimiento de sincronizacion de una red de estaciones base. |
KR100291476B1 (ko) * | 1998-05-25 | 2001-07-12 | 윤종용 | 파일럿측정요구명령제어방법및시스템 |
US6507585B1 (en) * | 1998-05-27 | 2003-01-14 | 3Com Corporation | Multi-carrier LAN adapter device using frequency domain equalizer |
US6744754B1 (en) | 1998-06-09 | 2004-06-01 | Lg Information & Communications, Ltd. | Control of forward link power CDMA mobile communication system |
US6201576B1 (en) * | 1998-06-26 | 2001-03-13 | Lucent Technologies Inc. | Apparatus and method for detecting an NTSC signal in an HDTV transmission signal |
US6208858B1 (en) * | 1998-07-21 | 2001-03-27 | Qualcomm Incorporated | System and method for reducing call dropping rates in a multi-beam communication system |
KR100306286B1 (ko) | 1998-08-04 | 2001-09-29 | 윤종용 | 부호분할 다중접속 통신시스템의 채널 통신 장치 및 방법 |
FR2782428B1 (fr) | 1998-08-12 | 2000-09-15 | Alsthom Cge Alcatel | Dispositif permettant des facteurs d'etalement differents tout en preservant un code d'embrouillage commun, notamment pour systeme cellulaire de radiocommunications mobiles du type a acces multiple par repartition de codes |
AU9265298A (en) | 1998-08-26 | 2000-03-21 | Nokia Networks Oy | Bidirectional arq apparatus and method |
US6590879B1 (en) | 1998-08-28 | 2003-07-08 | Nortel Networks Limited | Method, mobile station, basestation and mobile communications system for performing handoff independently for groups of physical direct sequence-code division multiple access channels |
US6310869B1 (en) * | 1998-08-31 | 2001-10-30 | Qualcomm Incorporated | Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols |
US6347080B2 (en) * | 1998-09-09 | 2002-02-12 | Qualcomm, Inc. | Energy based communication rate detection system and method |
CA2311788C (en) | 1998-09-29 | 2003-12-16 | Samsung Electronics Co., Ltd. | Device and method for generating spreading code and spreading channel signals using spreading code in cdma communication system |
EP0996304B1 (en) | 1998-10-19 | 2007-03-14 | Nortel Matra Cellular | Method and apparatus for setting up a connection to a target base station in a cellular or cordless mobile communications system |
DE19848116A1 (de) | 1998-10-19 | 2000-05-04 | Siemens Ag | Verfahren und Funk-Kommunikationssystem zur Signalisierungssteuerung |
US6163524A (en) | 1998-10-19 | 2000-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Code allocation in CDMA |
JP2000134662A (ja) * | 1998-10-26 | 2000-05-12 | Fujitsu Ltd | 移動通信システムおよび移動機 |
US6512925B1 (en) | 1998-12-03 | 2003-01-28 | Qualcomm, Incorporated | Method and apparatus for controlling transmission power while in soft handoff |
US6505058B1 (en) * | 1998-12-04 | 2003-01-07 | Motorola, Inc. | Method for determining whether to wake up a mobile station |
EP1142372A1 (en) | 1998-12-18 | 2001-10-10 | Telefonaktiebolaget LM Ericsson (publ) | Selective and efficient messaging in a mobile communications system |
SE514328C2 (sv) | 1998-12-18 | 2001-02-12 | Ericsson Telefon Ab L M | Förfarande och arrangemang i ett radiokommunikationssystem för utförande av meddelandeöverföring |
US6788728B1 (en) | 1999-01-12 | 2004-09-07 | Sony Corporation | System and method for reducing peak-to-average ratio of the reverse link modulator in a CDMA phone system |
US6205129B1 (en) * | 1999-01-15 | 2001-03-20 | Qualcomm Inc. | Method and apparatus for variable and fixed forward link rate control in a mobile radio communications system |
US6442130B1 (en) | 1999-01-21 | 2002-08-27 | Cisco Technology, Inc. | System for interference cancellation |
KR100526537B1 (ko) | 1999-02-13 | 2005-11-08 | 삼성전자주식회사 | 가변 데이터레이트의 채널 구조를 가지는 부호분할다중접속 통신시스템의 직교부호 할당 방법 및 그에 따른 장치 |
US6317435B1 (en) | 1999-03-08 | 2001-11-13 | Qualcomm Incorporated | Method and apparatus for maximizing the use of available capacity in a communication system |
US6473418B1 (en) | 1999-03-11 | 2002-10-29 | Flarion Technologies, Inc. | Orthogonal frequency division multiplexing based spread spectrum multiple access |
US6535723B1 (en) * | 1999-03-15 | 2003-03-18 | Lucent Technologies Inc. | Method of power control for a wireless communication system having multiple information rates |
US6169759B1 (en) | 1999-03-22 | 2001-01-02 | Golden Bridge Technology | Common packet channel |
US6621796B1 (en) | 1999-03-22 | 2003-09-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Discard mechanism for selective repeat automatic repeat request |
US6496496B1 (en) | 1999-04-22 | 2002-12-17 | Nortel Networks Limited | Crucial control message transmission method and systems |
US6167273A (en) | 1999-04-28 | 2000-12-26 | Nokia Mobile Phones Ltd. | Apparatus, and associated method, for effectuating power control to maintain desired QoS levels in the performance of a communication service |
US6233455B1 (en) | 1999-05-03 | 2001-05-15 | Nortel Networks Limited | Method for utilizing negative T—COMP to improve handoff reliability |
GB9910449D0 (en) | 1999-05-07 | 1999-07-07 | Koninkl Philips Electronics Nv | Radio communication system |
US6414988B1 (en) | 1999-05-12 | 2002-07-02 | Qualcomm Incorporated | Amplitude and phase estimation method in a wireless communication system |
JP3486576B2 (ja) | 1999-05-18 | 2004-01-13 | シャープ株式会社 | Ofdm受信装置及びその周波数オフセット補償方法 |
US6351460B1 (en) | 1999-05-24 | 2002-02-26 | Qualcomm Incorporated | Method and apparatus for a dedicated control channel in an early soft handoff in a code division multiple access communication system |
CN1148989C (zh) | 1999-05-31 | 2004-05-05 | 韩国电子通信研究院 | 使用正交可变扩展系数码来调制数据消息的装置和方法 |
KR100406531B1 (ko) | 1999-05-31 | 2003-11-22 | 한국전자통신연구원 | 이동통신시스템에서 가변팩터직교확산 코드를 이용하여데이터 메시지를 변조하기 위한 장치 및 방법 |
US6775544B2 (en) | 1999-06-03 | 2004-08-10 | At&T Wireless Services, Inc. | Automatic diagnostic for detection of interference in wireless communication system |
JP2000349740A (ja) | 1999-06-08 | 2000-12-15 | Matsushita Electric Ind Co Ltd | 送受信装置 |
FI109072B (fi) | 1999-06-16 | 2002-05-15 | Nokia Corp | Menetelmä ja järjestely kanavakoodaus- ja lomitusmenettelyn valitsemiseksi eräissä pakettidatayhteyksissä |
US6490461B1 (en) | 1999-06-24 | 2002-12-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Power control based on combined quality estimates |
US6285886B1 (en) | 1999-07-08 | 2001-09-04 | Lucent Technologies Inc. | Method for controlling power for a communications system having multiple traffic channels per subscriber |
US6611507B1 (en) | 1999-07-30 | 2003-08-26 | Nokia Corporation | System and method for effecting information transmission and soft handoff between frequency division duplex and time division duplex communications systems |
US6456653B1 (en) | 1999-08-25 | 2002-09-24 | Lucent Technologies Inc. | Fast and accurate signal-to-noise ratio estimation technique for OFDM systems |
US6208699B1 (en) | 1999-09-01 | 2001-03-27 | Qualcomm Incorporated | Method and apparatus for detecting zero rate frames in a communications system |
US6571104B1 (en) | 1999-09-07 | 2003-05-27 | Lucent Technologies Inc. | Power control with effective Eb/N0 |
US6609007B1 (en) | 1999-09-14 | 2003-08-19 | Lucent Technologies Inc. | Apparatus and method for controlling the transmission power of the forward link of a wireless communication system |
EP1217770A1 (en) * | 1999-09-30 | 2002-06-26 | Fujitsu Limited | Transmitter, receiver, and transmitting method in multi-carrier transmission system |
US6563810B1 (en) | 1999-09-30 | 2003-05-13 | Qualcomm Incorporated | Closed loop resource allocation |
SE515050C2 (sv) | 1999-10-01 | 2001-06-05 | Ericsson Telefon Ab L M | Metod och anordning i mobilradiosystem med möjlighet att växla kanalkodningsschema och att byta från frekvenshoppande kanal till icke frekvenshoppande kanal |
US6816827B1 (en) | 1999-10-01 | 2004-11-09 | Nec Corporation | Verification method for combinational loop systems |
US6332084B1 (en) | 1999-10-09 | 2001-12-18 | Qualcomm Incorporated | Multiple mode wireless telephone |
US6771700B1 (en) | 1999-10-09 | 2004-08-03 | Qualcomm Incorporated | Method and apparatus for minimizing total transmission energy in a communication system employing retransmission of frame received in error |
KR100329644B1 (ko) | 1999-12-02 | 2002-03-21 | 박종섭 | 이동통신 시스템에서 이동국 위치측정방법 및 이를 이용한핸드오프 수행방법 |
US7110785B1 (en) | 1999-12-03 | 2006-09-19 | Nortel Networks Limited | Performing power control in a mobile communications system |
KR100354337B1 (ko) | 1999-12-04 | 2002-09-28 | 한국과학기술원 | 대역 확산 통신 방식에서의 확산 변조 방식을 이용한송수신방식 및 송수신장치 |
US6917603B2 (en) * | 2000-01-20 | 2005-07-12 | Nortel Networks Limited | Servicing multiple high speed data users in shared packets of a high speed wireless channel |
US6570444B2 (en) | 2000-01-26 | 2003-05-27 | Pmc-Sierra, Inc. | Low noise wideband digital predistortion amplifier |
KR100387034B1 (ko) | 2000-02-01 | 2003-06-11 | 삼성전자주식회사 | 무선통신 시스템의 패킷데이타 서비스를 위한스케듈링장치 및 방법 |
JP3826653B2 (ja) | 2000-02-25 | 2006-09-27 | Kddi株式会社 | 無線通信システムのサブキャリア割当方法 |
US6760303B1 (en) | 2000-03-29 | 2004-07-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel-type switching based on cell load |
US6694469B1 (en) | 2000-04-14 | 2004-02-17 | Qualcomm Incorporated | Method and an apparatus for a quick retransmission of signals in a communication system |
US6876641B2 (en) * | 2000-04-14 | 2005-04-05 | Via Telecom Co., Ltd. | Fast feedback channel with flexible bit reliability for wireless communications |
US7088701B1 (en) | 2000-04-14 | 2006-08-08 | Qualcomm, Inc. | Method and apparatus for adaptive transmission control in a high data rate communication system |
KR100370746B1 (ko) | 2000-05-30 | 2003-02-05 | 한국전자통신연구원 | 다차원 직교 자원 도약 다중화 통신 방식 및 장치 |
US6862457B1 (en) | 2000-06-21 | 2005-03-01 | Qualcomm Incorporated | Method and apparatus for adaptive reverse link power control using mobility profiles |
DE60115719T2 (de) | 2000-06-21 | 2006-06-29 | Samsung Electronics Co., Ltd., Suwon | Vorrichtung und Verfahren zur Schaltung der Übertragung eines Datenkontrollkanals in einem mobilen Kommunikationssystem hoher Datenrate |
KR20020001093A (ko) * | 2000-06-24 | 2002-01-09 | 이원창 | 공압을 이용한 원터치방식의 철도차량용 브레이크완해시스템 |
JP4330767B2 (ja) | 2000-06-26 | 2009-09-16 | 株式会社エヌ・ティ・ティ・ドコモ | 自動再送要求を行う通信方法及び基地局装置 |
KR100434459B1 (ko) * | 2000-06-27 | 2004-06-05 | 삼성전자주식회사 | 이동통신 시스템에서 패킷의 전송 제어방법 및 장치 |
KR100605973B1 (ko) | 2000-06-27 | 2006-07-28 | 삼성전자주식회사 | 이동통신 시스템의 링크적응 방법 및 장치 |
JP2002009734A (ja) | 2000-06-27 | 2002-01-11 | Denso Corp | Ofdm方式を用いた通信システム |
JP3583353B2 (ja) | 2000-07-03 | 2004-11-04 | 松下電器産業株式会社 | 通信端末装置および基地局装置 |
CN1148895C (zh) | 2000-07-03 | 2004-05-05 | 松下电器产业株式会社 | 基站装置和无线通信方法 |
KR100387057B1 (ko) | 2000-07-04 | 2003-06-12 | 삼성전자주식회사 | 이동 통신시스템의 역방향 데이터 전송율 결정 방법 및 장치 |
WO2002007372A2 (en) | 2000-07-13 | 2002-01-24 | Qualcomm Incorporated | Maximum distance block coding scheme |
EP1176750A1 (en) * | 2000-07-25 | 2002-01-30 | Telefonaktiebolaget L M Ericsson (Publ) | Link quality determination of a transmission link in an OFDM transmission system |
EP1176778A1 (de) | 2000-07-29 | 2002-01-30 | Micronas GmbH | Datenübertragungsverfahren |
WO2002013395A2 (en) | 2000-08-04 | 2002-02-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Spreading factor detector |
JP2002077984A (ja) | 2000-08-29 | 2002-03-15 | Toshiba Corp | ポイント・マルチポイント加入者無線システム及びポイント・マルチポイント無線通信に於ける伝送帯域割当方式 |
US6952561B1 (en) | 2000-08-31 | 2005-10-04 | Lucent Technologies Inc. | Enhanced metric for bit detection on fading channels with unknown statistics |
US6879576B1 (en) * | 2000-09-06 | 2005-04-12 | Qualcomm Incorporated | Method and apparatus for processing a physical channel with partial transport format information |
US6977888B1 (en) | 2000-09-14 | 2005-12-20 | Telefonaktiebolaget L M Ericsson (Publ) | Hybrid ARQ for packet data transmission |
WO2002032009A1 (en) * | 2000-10-09 | 2002-04-18 | Koninklijke Philips Electronics N.V. | Method and apparatus for the communication of information with power control |
US7072315B1 (en) | 2000-10-10 | 2006-07-04 | Adaptix, Inc. | Medium access control for orthogonal frequency-division multiple-access (OFDMA) cellular networks |
DE10050330A1 (de) | 2000-10-11 | 2002-04-25 | Infineon Technologies Ag | Signalstärkeausgleich für stark zeitvariante Mobilfunkkanäle |
DE60125570T2 (de) | 2000-10-20 | 2007-08-09 | Nortel Networks Ltd., St. Laurent | Mehrbenutzerdetektor für direktsequenz-kodemultiplex-vielfachzugriffkanäle |
JP4309129B2 (ja) * | 2000-10-24 | 2009-08-05 | ノーテル・ネットワークス・リミテッド | 共用チャネル構造、arqシステム及び方法 |
US6973098B1 (en) | 2000-10-25 | 2005-12-06 | Qualcomm, Incorporated | Method and apparatus for determining a data rate in a high rate packet data wireless communications system |
KR100354168B1 (ko) | 2000-10-31 | 2002-09-27 | 엘지전자 주식회사 | Cdma 이동 통신의 핸드오프 방법 및 이를 위한 시스템 |
US6678523B1 (en) | 2000-11-03 | 2004-01-13 | Motorola, Inc. | Closed loop method for reverse link soft handoff hybrid automatic repeat request |
AU2002214234A1 (en) | 2000-11-06 | 2002-05-15 | Cute Ltd. | Reliable detection of a transport format identifier in a transport format identification field of a digital communication system |
US6775254B1 (en) | 2000-11-09 | 2004-08-10 | Qualcomm Incorporated | Method and apparatus for multiplexing high-speed packet data transmission with voice/data transmission |
KR100464485B1 (ko) * | 2000-11-09 | 2004-12-31 | 엘지전자 주식회사 | 고속무선 패킷 데이터의 전송 장치 및 그 방법 |
JP2002159061A (ja) | 2000-11-21 | 2002-05-31 | Yrp Mobile Telecommunications Key Tech Res Lab Co Ltd | Cdma移動通信システム |
US6999430B2 (en) | 2000-11-30 | 2006-02-14 | Qualcomm Incorporated | Method and apparatus for transmitting data traffic on a wireless communication channel |
KR20020043139A (ko) | 2000-12-01 | 2002-06-08 | 윤종용 | 이동통신시스템에서 고속 데이터 서비스를 위한 스케쥴링방법 |
US6711208B2 (en) * | 2000-12-04 | 2004-03-23 | Qualcomm, Incorporated | Estimation of traffic-to-pilot ratios |
US6947748B2 (en) | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
US7068702B2 (en) | 2001-01-12 | 2006-06-27 | Mediatek Incorporation | Method and apparatus for selective collision avoidance frequency hopping |
US6987738B2 (en) * | 2001-01-12 | 2006-01-17 | Motorola, Inc. | Method for packet scheduling and radio resource allocation in a wireless communication system |
KR100469711B1 (ko) | 2001-01-18 | 2005-02-02 | 삼성전자주식회사 | 이동통신시스템에서 역방향 송신 제어 장치 및 방법 |
US7164669B2 (en) * | 2001-01-19 | 2007-01-16 | Adaptix, Inc. | Multi-carrier communication with time division multiplexing and carrier-selective loading |
US7272199B2 (en) | 2001-01-25 | 2007-09-18 | Bandspeed, Inc. | Adaptive adjustment of time and frequency domain equalizers in communications systems |
US7177367B2 (en) * | 2001-01-25 | 2007-02-13 | Bandspeed, Inc. | Method for bit assignment and fine gain setting in a multi-carrier communications system |
US7061986B2 (en) | 2001-01-25 | 2006-06-13 | Bandspeed, Inc. | Method for adaptive bit assignment and fine gain setting in a multi-carrier communications system |
JP2002232943A (ja) | 2001-01-29 | 2002-08-16 | Sony Corp | データ送信処理方法、データ受信処理方法、送信機、受信機、およびセルラー無線通信システム |
US6947436B2 (en) * | 2001-02-01 | 2005-09-20 | Motorola, Inc. | Method for optimizing forward link data transmission rates in spread-spectrum communications systems |
WO2002063818A1 (fr) | 2001-02-06 | 2002-08-15 | Mitsubishi Denki Kabushiki Kaisha | Procédé de correction d'erreur et de décodage |
US6741862B2 (en) | 2001-02-07 | 2004-05-25 | Airvana, Inc. | Enhanced reverse-link rate control in wireless communication |
US7126930B2 (en) | 2001-02-10 | 2006-10-24 | Qualcomm, Incorporated | Method and apparatus for transmitting messages in a wireless communication system |
US8605686B2 (en) | 2001-02-12 | 2013-12-10 | Qualcomm Incorporated | Method and apparatus for power control in a wireless communication system |
EP1811804B1 (en) | 2001-02-12 | 2011-04-27 | LG Electronics Inc. | Controlling data transmission rate on the reverse link for each mobile station in a dedicated manner |
US7120134B2 (en) | 2001-02-15 | 2006-10-10 | Qualcomm, Incorporated | Reverse link channel architecture for a wireless communication system |
US6549561B2 (en) * | 2001-02-21 | 2003-04-15 | Magis Networks, Inc. | OFDM pilot tone tracking for wireless LAN |
US7164654B2 (en) | 2001-03-09 | 2007-01-16 | Denso Corporation | ARQ parameter retransmission control for variable data rate channels |
KR100469701B1 (ko) * | 2001-03-10 | 2005-02-02 | 삼성전자주식회사 | 이동통신시스템에서 패킷 데이터 제어 채널 통신 장치 및방법 |
US20020131522A1 (en) | 2001-03-14 | 2002-09-19 | Tilman Felgentreff | Method and apparatus for the digital predistortion linearization, frequency response compensation linearization and feedforward linearization of a transmit signal |
KR100753500B1 (ko) | 2001-03-21 | 2007-08-31 | 엘지전자 주식회사 | 역방향 링크에서의 하이브리드 자동 재송 요구 방식을이용한 링크 적응 방법 및 이를 위한 시스템 |
EP1244240B1 (en) | 2001-03-21 | 2010-11-10 | LG Electronics, Inc. | Retransmission of data through a reverse link in a packet data communication system using automatic repeat request |
CA2442102C (en) * | 2001-03-26 | 2010-06-08 | Samsung Electronics Co., Ltd. | Method of controlling reverse transmission in a mobile communication system |
US6701151B2 (en) * | 2001-03-27 | 2004-03-02 | Ericsson Inc. | Short access for realizing a signaling radio bearer in geran |
KR100429526B1 (ko) | 2001-03-29 | 2004-05-03 | 삼성전자주식회사 | 이동 통신시스템의 데이터 전송률 지시 정보 송수신 방법및 장치 |
US7286558B2 (en) | 2001-03-29 | 2007-10-23 | Samsung Electronics Co., Ltd. | Method and device for transmitting/receiving data rate information in a mobile communication system |
KR100800884B1 (ko) | 2001-03-29 | 2008-02-04 | 삼성전자주식회사 | 이동통신 시스템에서 역방향 링크의 송신 제어 방법 |
US8199696B2 (en) | 2001-03-29 | 2012-06-12 | Qualcomm Incorporated | Method and apparatus for power control in a wireless communication system |
US7069035B2 (en) | 2001-03-30 | 2006-06-27 | Qualcomm, Incorporated | Method and apparatus for power control in a communication system |
WO2002082108A1 (en) | 2001-04-03 | 2002-10-17 | Nokia Corporation | Reverse link handoff mechanism with hybrid-arq and cell site selection in cdma2000 1xev-dv systems |
CA2380039C (en) | 2001-04-03 | 2008-12-23 | Samsung Electronics Co., Ltd. | Method of transmitting control data in cdma mobile communication system |
US6982946B2 (en) | 2001-04-05 | 2006-01-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Partly orthogonal multiple code trees |
US6836666B2 (en) | 2001-05-08 | 2004-12-28 | Lucent Technologies Inc. | Method to control uplink transmissions in a wireless communication system |
KR100724847B1 (ko) | 2001-05-09 | 2007-06-04 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템에서 부호화 및 복호화장치 및 방법 |
EP1271834B1 (en) | 2001-05-14 | 2007-08-08 | LG Electronics, Inc. | Method for controlling data transmission in a radio communications system |
US7158504B2 (en) * | 2001-05-21 | 2007-01-02 | Lucent Technologies, Inc. | Multiple mode data communication system and method and forward and/or reverse link control channel structure |
KR100736476B1 (ko) | 2001-06-02 | 2007-07-06 | 엘지전자 주식회사 | 이동통신 시스템에서의 전송율 지시채널의 지시코드발생장치 및 방법 |
US6895235B2 (en) | 2001-06-05 | 2005-05-17 | Telcordia Technologies, Inc. | Adaptive load and coverage management system and method |
JP3427381B2 (ja) | 2001-06-20 | 2003-07-14 | 富士通株式会社 | 雑音キャンセル方法及び装置 |
CN100459777C (zh) * | 2001-06-27 | 2009-02-04 | 北方电讯网络有限公司 | 无线通信系统和在逻辑信道与通信信道间映射信息的方法 |
US6963543B2 (en) | 2001-06-29 | 2005-11-08 | Qualcomm Incorporated | Method and system for group call service |
US6751444B1 (en) | 2001-07-02 | 2004-06-15 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
JP2003018117A (ja) | 2001-07-04 | 2003-01-17 | Nippon Telegr & Teleph Corp <Ntt> | 多元接続装置および多元接続方法 |
US7336954B2 (en) * | 2001-07-05 | 2008-02-26 | Qualcomm Incorporated | Method and apparatus for soft handoff between base stations using different frame formats |
KR100747524B1 (ko) * | 2001-07-07 | 2007-08-08 | 엘지전자 주식회사 | 다변 데이터 레이트 모드에서의 신호 전력 제어 방법 |
WO2003007530A2 (en) | 2001-07-10 | 2003-01-23 | Koninklijke Philips Electronics N.V. | Method of transmitting data packets |
JP3607643B2 (ja) | 2001-07-13 | 2005-01-05 | 松下電器産業株式会社 | マルチキャリア送信装置、マルチキャリア受信装置、およびマルチキャリア無線通信方法 |
US6917581B2 (en) | 2001-07-17 | 2005-07-12 | Ipr Licensing, Inc. | Use of orthogonal or near orthogonal codes in reverse link |
US6904286B1 (en) | 2001-07-18 | 2005-06-07 | Cisco Technology, Inc. | Method and system of integrated rate control for a traffic flow across wireline and wireless networks |
US6751264B2 (en) | 2001-07-27 | 2004-06-15 | Motorola, Inc. | Receiver and method therefor |
US7221653B2 (en) * | 2001-07-30 | 2007-05-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Fast flow control methods for communication networks |
US20030028251A1 (en) * | 2001-07-30 | 2003-02-06 | Mathews Hallett H. | Methods and devices for interbody spinal stabilization |
US7269186B2 (en) | 2001-08-06 | 2007-09-11 | Qualcomm Incorporated | Protocol for framing a payload |
JP2003060609A (ja) | 2001-08-10 | 2003-02-28 | Mitsubishi Electric Corp | 通信方法および通信装置 |
GB0120033D0 (en) | 2001-08-16 | 2001-10-10 | Fujitsu Ltd | Cell selection |
JP4286476B2 (ja) | 2001-08-20 | 2009-07-01 | 株式会社日立国際電気 | 直交周波数分割多重変調方式の受信装置 |
US7190964B2 (en) * | 2001-08-20 | 2007-03-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Reverse link power control in 1xEV-DV systems |
US20030039317A1 (en) * | 2001-08-21 | 2003-02-27 | Taylor Douglas Hamilton | Method and apparatus for constructing a sub-carrier map |
JP4247288B2 (ja) | 2001-08-27 | 2009-04-02 | パナソニック株式会社 | 無線通信方法及び無線通信装置 |
JP4138280B2 (ja) | 2001-08-29 | 2008-08-27 | エプソントヨコム株式会社 | Ofdm通信装置 |
US6865389B2 (en) * | 2001-09-05 | 2005-03-08 | Telefonaktiegolaget Lm Ericsson | System and method for a virtual soft handover in a high data rate network based on data transmission information |
US6665309B2 (en) | 2001-09-20 | 2003-12-16 | Nokia Corporation | Apparatus, and associated method, for generating assignment information used pursuant to channel allocation in a radio communication system |
KR100807886B1 (ko) | 2001-09-24 | 2008-02-27 | 에스케이 텔레콤주식회사 | 직교 주파수 분할 다중화 시스템의 수신 장치 |
US7103021B2 (en) | 2001-09-25 | 2006-09-05 | Qualcomm Incorporated | Method and apparatus for communications of data rate control information in a CDMA communication system |
US6680925B2 (en) * | 2001-10-16 | 2004-01-20 | Qualcomm Incorporated | Method and system for selecting a best serving sector in a CDMA data communication system |
US7076001B2 (en) | 2001-10-16 | 2006-07-11 | Harris Corporation | System and method for an in-service decision-directed signal to noise ratio estimator |
US20030081538A1 (en) | 2001-10-18 | 2003-05-01 | Walton Jay R. | Multiple-access hybrid OFDM-CDMA system |
US6563885B1 (en) | 2001-10-24 | 2003-05-13 | Texas Instruments Incorporated | Decimated noise estimation and/or beamforming for wireless communications |
US7289529B2 (en) | 2001-10-31 | 2007-10-30 | At&T Corp. | Method and system for optimally serving stations on wireless LANs using a controlled contention/resource reservation protocol of the IEEE 802.11e standard |
US6898418B2 (en) | 2001-11-02 | 2005-05-24 | Texas Instruments Incorporated | Method of and apparatus for implementing adaptive downstream modulation in a fixed wireless communication system |
US7245600B2 (en) | 2001-11-05 | 2007-07-17 | Qualcomm, Inc. | Method and apparatus for determining reverse link load level for reverse link data scheduling in a CDMA communication system |
US7944839B2 (en) * | 2001-11-30 | 2011-05-17 | British Telecommunications Public Limited Company | Method of resource control in a wireless network |
FI112547B (fi) | 2001-12-21 | 2003-12-15 | Nokia Corp | Menetelmä uudelleentahdistumisen suorittamiseksi sijainninmääritysvastaanottimessa ja elektroniikkalaite |
KR100405662B1 (ko) | 2001-12-28 | 2003-11-14 | 엘지전자 주식회사 | 서로 다른 세대 이동통신 시스템간 핸드오프 장치 및 방법 |
US7039013B2 (en) | 2001-12-31 | 2006-05-02 | Nokia Corporation | Packet flow control method and device |
KR100433899B1 (ko) | 2002-01-14 | 2004-06-04 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템에서 소프트 핸드오버결정장치 및 방법 |
US20030152102A1 (en) | 2002-02-12 | 2003-08-14 | William Morgan | Method and apparatus for predicting a frame type |
US7336640B2 (en) * | 2002-02-19 | 2008-02-26 | Texas Instruments Incorporated | Method and apparatus for CDMA demodulation |
US7197085B1 (en) * | 2002-03-08 | 2007-03-27 | Andrew Corporation | Frequency-dependent magnitude pre-distortion for reducing spurious emissions in communication networks |
US20040198276A1 (en) | 2002-03-26 | 2004-10-07 | Jose Tellado | Multiple channel wireless receiver |
KR100456693B1 (ko) | 2002-03-28 | 2004-11-10 | 삼성전자주식회사 | 다중채널 통신 시스템의 비트 할당을 최적화하여 셋업시간을 최소화하는 방법 |
US7079856B2 (en) | 2002-04-05 | 2006-07-18 | Lucent Technologies Inc. | Data flow control between a base station and a mobile station |
KR100617674B1 (ko) * | 2002-05-07 | 2006-08-28 | 삼성전자주식회사 | 칩 합성기를 이용한 다중 왈시코드 복조장치 및 방법 |
US7539165B2 (en) | 2002-05-24 | 2009-05-26 | Antti Toskala | Method and apparatus for distributed signaling for uplink rate control |
JP2004032518A (ja) | 2002-06-27 | 2004-01-29 | Sony Corp | ダイバーシティ受信方法および受信装置 |
US7116708B2 (en) * | 2002-06-27 | 2006-10-03 | Nortel Networks Limited | Controlling the rate of data transfer over a wireless link |
US7269389B2 (en) | 2002-07-03 | 2007-09-11 | Arraycomm, Llc | Selective power control messaging |
US7257101B2 (en) | 2002-07-03 | 2007-08-14 | Arraycomm, Llc | Selective power control messaging |
US7313167B2 (en) | 2002-09-30 | 2007-12-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Signal-to-noise ratio estimation of CDMA signals |
SE0203056D0 (sv) | 2002-10-11 | 2002-10-11 | Ericsson Telefon Ab L M | Method and apparatus in a telecommunication system |
US7463702B2 (en) | 2002-11-12 | 2008-12-09 | Agere Systems Inc. | System and method for one-pass blind transport format detection |
JP3583414B2 (ja) | 2002-11-14 | 2004-11-04 | 松下電器産業株式会社 | Cdma送信装置およびcdma受信装置 |
US7499486B2 (en) | 2002-11-27 | 2009-03-03 | Agere Systems Inc. | Data transmission rate adaptation in a wireless communication system |
US7016651B1 (en) * | 2002-12-17 | 2006-03-21 | Marvell International Ltd. | Apparatus and method for measuring signal quality of a wireless communications link |
JP4095665B2 (ja) | 2002-12-27 | 2008-06-04 | ソフトバンクテレコム株式会社 | チャネル割り当て方法 |
US7155249B2 (en) | 2003-01-10 | 2006-12-26 | Qualcomm Incorporated | Modified power control for hybrid ARQ on the reverse link |
US6996763B2 (en) * | 2003-01-10 | 2006-02-07 | Qualcomm Incorporated | Operation of a forward link acknowledgement channel for the reverse link data |
US20040228349A1 (en) | 2003-01-10 | 2004-11-18 | Sophie Vrzic | Semi-distributed scheduling scheme for the reverse link of wireless systems |
US8165148B2 (en) * | 2003-01-13 | 2012-04-24 | Qualcomm Incorporated | System and method for rate assignment |
MXPA05008613A (es) | 2003-02-13 | 2005-11-04 | Nokia Corp | Sistema y metodo para la deteccion de senales de enlace ascendente mejorada y potencia de senales de enlace ascendente reducida. |
US7299402B2 (en) | 2003-02-14 | 2007-11-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Power control for reverse packet data channel in CDMA systems |
US20050176456A1 (en) | 2003-02-18 | 2005-08-11 | Tao Chen | Systems and methods for performing outer loop power control in wireless communication systems |
US7505780B2 (en) * | 2003-02-18 | 2009-03-17 | Qualcomm Incorporated | Outer-loop power control for wireless communication systems |
US20040160922A1 (en) | 2003-02-18 | 2004-08-19 | Sanjiv Nanda | Method and apparatus for controlling data rate of a reverse link in a communication system |
US8023950B2 (en) | 2003-02-18 | 2011-09-20 | Qualcomm Incorporated | Systems and methods for using selectable frame durations in a wireless communication system |
US7286846B2 (en) | 2003-02-18 | 2007-10-23 | Qualcomm, Incorporated | Systems and methods for performing outer loop power control in wireless communication systems |
US7155236B2 (en) * | 2003-02-18 | 2006-12-26 | Qualcomm Incorporated | Scheduled and autonomous transmission and acknowledgement |
US7660282B2 (en) | 2003-02-18 | 2010-02-09 | Qualcomm Incorporated | Congestion control in a wireless data network |
US7280562B2 (en) | 2003-02-18 | 2007-10-09 | Qualcomm Incorporated | Variable packet lengths for high packet data rate communications |
US8150407B2 (en) * | 2003-02-18 | 2012-04-03 | Qualcomm Incorporated | System and method for scheduling transmissions in a wireless communication system |
US7418064B2 (en) | 2003-02-18 | 2008-08-26 | Qualcomm, Incorporated | Systems and methods for hierarchically demodulating and decoding a data signal using a pilot signal and an additional signal |
US8081598B2 (en) * | 2003-02-18 | 2011-12-20 | Qualcomm Incorporated | Outer-loop power control for wireless communication systems |
US8391249B2 (en) * | 2003-02-18 | 2013-03-05 | Qualcomm Incorporated | Code division multiplexing commands on a code division multiplexed channel |
US7215930B2 (en) * | 2003-03-06 | 2007-05-08 | Qualcomm, Incorporated | Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication |
US8705588B2 (en) | 2003-03-06 | 2014-04-22 | Qualcomm Incorporated | Systems and methods for using code space in spread-spectrum communications |
US7327716B2 (en) * | 2003-03-06 | 2008-02-05 | Nortel Networks Limited | Reverse link enhancement for CDMA 2000 Release D |
US7423992B2 (en) | 2003-04-16 | 2008-09-09 | Sony Corporation | Time slot and carrier frequency allocation in a network |
JP3697521B2 (ja) | 2003-04-21 | 2005-09-21 | 独立行政法人情報通信研究機構 | 受信装置、受信方法、ならびに、プログラム |
US6882855B2 (en) | 2003-05-09 | 2005-04-19 | Motorola, Inc. | Method and apparatus for CDMA soft handoff for dispatch group members |
KR101049103B1 (ko) | 2003-05-12 | 2011-07-14 | 엘지전자 주식회사 | 이동통신 시스템에서 데이터 레이트를 결정하는 방법 |
US8477592B2 (en) * | 2003-05-14 | 2013-07-02 | Qualcomm Incorporated | Interference and noise estimation in an OFDM system |
US7012912B2 (en) * | 2003-05-14 | 2006-03-14 | Qualcomm Incorporated | Power control and scheduling in an OFDM system |
BR0318338A (pt) | 2003-06-10 | 2006-07-11 | Nokia Corp | método e aparelho para comutar a estação móvel entre as transmissões autÈnoma e programada |
US7126928B2 (en) | 2003-08-05 | 2006-10-24 | Qualcomm Incorporated | Grant, acknowledgement, and rate control active sets |
US8489949B2 (en) | 2003-08-05 | 2013-07-16 | Qualcomm Incorporated | Combining grant, acknowledgement, and rate control commands |
US7315527B2 (en) * | 2003-08-05 | 2008-01-01 | Qualcomm Incorporated | Extended acknowledgement and rate control channel |
US7706403B2 (en) * | 2003-11-25 | 2010-04-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Queuing delay based rate control |
US7257406B2 (en) * | 2004-07-23 | 2007-08-14 | Qualcomm, Incorporated | Restrictive reuse set management |
-
2003
- 2003-07-28 US US10/628,955 patent/US20040160922A1/en not_active Abandoned
-
2004
- 2004-02-17 WO PCT/US2004/004668 patent/WO2004075593A2/en active Application Filing
- 2004-02-17 CN CN2004800101172A patent/CN1774950B/zh not_active Expired - Lifetime
- 2004-02-17 BR BRPI0407568-4A patent/BRPI0407568B1/pt active IP Right Grant
- 2004-02-17 KR KR1020057015105A patent/KR20050098944A/ko not_active Application Discontinuation
- 2004-02-17 JP JP2006503642A patent/JP4611973B2/ja not_active Expired - Lifetime
- 2004-02-17 AU AU2004213980A patent/AU2004213980C1/en not_active Ceased
- 2004-02-17 MX MXPA05008659A patent/MXPA05008659A/es active IP Right Grant
- 2004-02-17 EP EP04711869.0A patent/EP1595419B1/en not_active Expired - Lifetime
- 2004-02-17 CA CA2516219A patent/CA2516219C/en not_active Expired - Lifetime
- 2004-02-18 TW TW093103849A patent/TWI451786B/zh not_active IP Right Cessation
-
2015
- 2015-05-26 US US14/722,027 patent/US9998379B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0627827B1 (en) * | 1993-05-14 | 2001-10-31 | Telecom Italia Lab S.p.A. | Method of controlling transmission on a same radio channel of variable-rate information streams in radio communication systems, and radio communication system using this method |
US6134218A (en) * | 1994-04-28 | 2000-10-17 | Pmc-Sierra (Maryland), Inc. | Many dimensional congestion detection system and method |
WO2001006714A1 (en) * | 1999-07-15 | 2001-01-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Scheduling and admission control of packet data traffic |
WO2002041531A2 (en) * | 2000-11-15 | 2002-05-23 | Qualcomm Incorporated | Method and apparatus for allocating data streams onto a single channel |
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EP1595419A2 (en) | 2005-11-16 |
JP2006518577A (ja) | 2006-08-10 |
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BRPI0407568A (pt) | 2006-02-14 |
CA2516219A1 (en) | 2004-09-02 |
CA2516219C (en) | 2019-10-29 |
US9998379B2 (en) | 2018-06-12 |
AU2004213980B2 (en) | 2009-08-13 |
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EP1595419B1 (en) | 2019-04-24 |
AU2004213980A1 (en) | 2004-09-02 |
CN1774950B (zh) | 2011-06-29 |
JP4611973B2 (ja) | 2011-01-12 |
AU2004213980C1 (en) | 2010-01-14 |
TW200423762A (en) | 2004-11-01 |
WO2004075593A3 (en) | 2004-11-11 |
US20040160922A1 (en) | 2004-08-19 |
BRPI0407568B1 (pt) | 2018-06-12 |
WO2004075593A2 (en) | 2004-09-02 |
CN1774950A (zh) | 2006-05-17 |
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