TW515209B - Method and apparatus for supervising transmit power in a high data rate system - Google Patents
Method and apparatus for supervising transmit power in a high data rate system Download PDFInfo
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- TW515209B TW515209B TW090102648A TW90102648A TW515209B TW 515209 B TW515209 B TW 515209B TW 090102648 A TW090102648 A TW 090102648A TW 90102648 A TW90102648 A TW 90102648A TW 515209 B TW515209 B TW 515209B
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- access terminal
- base station
- timer
- data rate
- control processor
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- 238000000034 method Methods 0.000 title abstract description 10
- 238000005259 measurement Methods 0.000 abstract 2
- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 8
- 239000000835 fiber Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/20—TPC being performed according to specific parameters using error rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Radar Systems Or Details Thereof (AREA)
- Transmitters (AREA)
Description
;:515209 lL Ρί ! 史 14, 12,號 90102648 年 月 曰 修正 ?〇) 的傳輸和組態封包改變3 5 6，兩者的順序可先可後，或是 也可以在大約相同的時間同步進行。若在同時接收到變更 過的組態封包和釋放啟始訊息，則在對接收到的組態封包 有所回應之前，接達端會傳輸釋放訊息以回應釋放啟始訊 息。
圖4 a- 4 c為監督傳輸功率的範例流程圖。接達端和無線 網路之間第一次建立起連線時，接達端的傳送器是開啟 的，且接達端内兩個計時器，「關閉計時器」和「開啟計 時器」，從解除啟動狀態開始。在步驟4 0 2處理每個新的 時槽時，接達端產生（在步驟4 0 4 ) —個D R C值，並利用該 D R C值和兩個計時器來決定是要開啟或是關閉其傳送器。 在一範例具體實施例中，產生DRC值4 0 4的步驟之後，還 要檢查接達端1 1 0的傳送器是開啟或是關閉4 0 6的狀態。如 果傳送器是開啟狀態，該流程會繼續進行如圖4b所示，其 中接達端會決定該傳送器是否應該關閉。如果傳送器是關 閉狀態，該流程會繼續進行如圖4 c所示，其中接達端會決 定該傳送器是否應該開啟。 在圖4 b中，流程從步驟4 0 6進行到評估於步驟4 0 4所產生 D R C值的步驟4 2 0。假使在步驟4 2 0新產生的D R C值大於零速 率，則接達端將「關閉計時器」解除啟動（在步驟4 2 2 )。
在一範例具體實施例中，當「關閉計時器」已解除啟動 時，解除啟動「關閉計時器」不會改變關閉計時器的狀 態。在另一具體實施例中，步驟4 2 2包括檢查關閉計時器 的狀態，且只有在該計時器之前已經啟動時才能將它解除
O:\69\69230-941208.ptc 第24頁 /: it 515209 ί 案號 90102648 修正 啟動。步驟4 2 2之後，該流程繼續處理下一個時槽（圖4 a中 的 4 0 2 ) 〇 假使在步驟4 2 0，新產生的DR C值為零速率D R C值，則接 達端在步驟4 2 4評估關閉計時器的狀態。假使關閉計時器 為作用中，但在步驟4 2 4時截止，則接達端會在步驟4 3 0將 其關閉計時器解除啟動，並在步驟4 3 2關閉其傳送器。假 使關閉計時器未於步驟4 2 4時截止，則接達端會檢查（在步 驟4 2 6 )該關閉計時器是否已啟動。假使在步驟4 2 6關閉計 時器尚未啟動，則接達端會在步驟4 2 8啟動其關閉計時 器。啟動關閉計時器的步驟4 2 8包括將計時器設定為在特 定關閉期間之後截止，例如2 4 0毫秒或1 . 6 7毫秒持續期間 的1 4 4個時槽。啟動關閉計時器的截止動作，會成為接達 端關閉其傳送器的訊號。如果在步驟4 2 6關閉計時器已經 啟動，則該流程會繼續進行到處理下一個時槽的步驟（圖 4a 中的402)。 在圖4 c中，流程從步驟4 0 6進行到評估於步驟4 0 4所產生 D R C值的步驟4 4 2。假使在步驟4 4 2新產生的D R C值為零速率 D R C值，則接達端在步驟4 4 6將「開啟計時器」解除啟動。 在一範例具體實施例中，當「開啟計時器」已解除啟動 時，解除啟動「開啟計時器」不會改變開啟計時器的狀 態。在另一具體實施例中，步驟4 4 6包括檢查開啟計時器 的狀態，且只有在該計時器之前已經啟動時才能將它解除 啟動。步驟4 4 6之後，該流程繼續處理下一個時槽（圖4 a中 的402)。
O:\69\69230-941208.ptc 第25頁 —:: : :) 515209 替擦Η丨 I 案號 90102648_年月日__ .匕·‘善騰(23) 運作的功能和I WF (未顯示），位於選擇元件5 1 4和公用交換 電話網路或P S T N (未顯示）之間。 BSC 510包含許多選擇元件514，但為簡單起見，圖5a中 僅顯示一個元件。每個選擇元件5 1 4都透過一或一個以上 的基地台5 0 4指派給某一接達端和B S C 5 1 0之間的控制通 訊。在一範例具體實施例中，B SC 5 1 0和接達端之間的連 線可包括繞經單一選擇元件5 1 4的多個通信通道。接達端 被分配了來自每一服務基地台5 0 4最多一個通信通道。接 收自每一基地台5 0 4所服務的單一接達端的資料，會繞經 指派給接達端的單一選擇元件5 1 4。 封包網路介面5 2 4透過連線5 5 4接收封包資料網路1 2 4的 資料、檢查封包資料的目的位址、並將該資料繞送到與該 目的接達端有關的選擇元件5 1 4。假使無線網路1 2 0和目的 接達端之間尚未建立連線，則呼叫控制處理器5 1 6會設定 與該接達端的連線。設定連線的動作包括傳呼該接達端以 及為該接達端指派一個選擇元件5 1 4和一或一個以上的通 信通道。指派給單一接達端連線的每個通信通道將屬於不 同的基地台。透過通信通道與接達端通訊的基地台5 0 4， 被稱為接達端的「服務基地台」。指派給接達端連線的該 選擇元件5 1 4是用來將接收自封包網路介面5 2 4的封包資料 傳送給目的接達端的服務基地台5 0 4。 在一範例具體實施例中，每一基地台5 0 4包括一個基地 台控制處理器5 1 2，該處理器負責安排傳向由基地台5 0 4所 服務的所有接達端的正向鏈結傳輸的時間。基地台控制處
O:\69\69230-941208.ptc 第27頁 缚止.智-4 '伊 I- 12 _ 4- ,^! 515209 V' P丨案號 90102648 年 月 曰 修正 χ 發明說明（24) 理器5 1 2將針對每一正向鏈結時槽選擇正向鏈結傳輸將導 向的接達端。 在一範例具體實施例中，每個基地台5 0 4都針對每個與 作用中接達端有關的通信通道保持正向鏈結資料佇列 5 4 0。傳輸至接達端的封包資料被儲存在與接達端相關的 正向鏈結資料佇列中，直到基地台控制處理器5 1 2選擇該 接達端作為正向鏈結時槽的目的接達端為止。 在一範例具體實施例中，基地台5 0 4包括多個通道元件 542，其中通道元件542被分配給每一通信通道。一旦基地 台控制處理器5 1 2選擇了正向鏈結時槽的目的接達端，該 資料會從正向鏈結資料佇列5 4 0，經由對應的通信通道 5 4 2，傳送到無線射頻（R F )單元5 4 4，接著並經過天線 5 4 6。接著該資料再經由正向鏈結5 5 0傳送到該接達端。 在一範例具體實施例中，基地台控制處理器5 1 2也負責 指定每個正向時槽的傳輸速率。逆向鏈結5 5 2載波將鏈結 訊號反轉，譬如像接收自每一接達端1 1 0的D R C資訊，再傳 送至天線546。接著該逆向鏈結訊號在RF單元544中進行向 下轉換和增益控制，並在通道單元5 4 2中進行解調變和解 碼。 在範例具體實施例中，基地台控制處理器5 1 2監控接收 自每一作用中接達端的DRC資訊，並利用DRC資訊和每一正 向鏈結資料佇列5 4 0中的資料量，來安排正向鏈結5 5 0上的 傳輸時間。在一範例具體實施例中，基地台控制處理器 5 1 2會產生定期透過正向鏈結5 5 0傳輸的組態封包。該組態
O:\69\69230-941208.ptc 第28頁 換貝 515209 _η 修正 !:案號 90102648 (25)
封包包括指示每一基地台的通信通道是否已分配給作用中 接達端的通信通道分配資訊。呼叫控制處理器5 1 6命令基 地台控制處理器5 1 2釋放指派給作用中接達端1 1 0的通信通 道。呼叫控制處理器5 1 6都會產生釋放啟始訊息，並透過 一或一個以上的基地台，將該訊息傳送給即將釋放的接達 端。假使指派給即將釋放接達端的選擇元件5 1 4未接收到 釋放訊息，則呼叫控制處理器5 1 6會命令基地台控制處理 器5 1 2更新已傳輸的後續組態封包的内容，以反映對應的 通信通道已解除分配的狀況。因此，呼叫控制處理器5 1 6 可說明在服務即將釋放接達端的一個或所有基地台中通信 通道的解除分配。 呼叫控制處理器5 1 6和基地台控制處理器5 1 2是利用微處 理器、現場可程式閘陣列（FPGA)、可程式邏輯裝置 (P L D )、數位訊號處理器（DSP )、應用特殊積體電路 (A S I C )、或其他能夠產生和調整必要振幅和相位控制訊號 的裝置所建置（i m p 1 e m e n t)。在一範例具體實施例中，B S C 5 1 0和基地台5 0 4之間的通訊會經過繞程（b a c k h a u 1 )連線。 流經繞程連線的資訊包括呼叫控制處理器5 1 6和基地台控 制處理器5 1 2之間的通訊。BS C 5 1 0和基地台5 0 4之間的通 訊係利用像地下纜線或微波T 1或T 3等適合的連線設備或是 像OC3等光纖所建置。 在一範例具體實施例中，在逆向鏈結5 5 2上接收來自釋 放的接達端的釋放訊息，經解碼後繞送至基地台控制處理 器5 1 2，該處理器負責協調通信通道資源的回收和重新分
O:\69\69230-941208.ptc 第29頁 12. 515209 修正 案號 90102648 五、發明說明（30) 展。另一具體實施例使用複雜的Ρ Ν擴展。該擴展資料提供 給前端5 6 2之内的傳送器，該傳送器將訊號正交調變，並 加以過濾和放大。接著逆向鏈結訊號在空中經由天線5 6 0 在逆向鏈結5 5 2上傳輸。 另一具體實施例可適用能夠支援可變速率傳輸的其他硬 體架構。例如，另一具體實施例適用使用光纖通道的系 統，其中圖1的無線通訊通道1 1 2由光纖通訊通道所取代， 而圖5a-5b中的正向鏈結550和逆向鏈結552均存在於光纖 之中。圖5a-5b中的天線560和546由光纖介面所取代。
雖然此處所述的連線監督與正向鏈結有關，但範例具體 實施例可延伸為涵蓋逆向鏈結的連線監督。同樣地，雖然 範例具體實施例採用劃碼多向進接（CDMA )技術，但可以很 容易就延伸到執行不同的多向進接技術，例如劃時多向進 接（TDMA) ° 以上較佳具體實施例的說明是提供給本行業專家以生產 或使用本發明。顯而易見地，對本行業專家而言本發明可 有無數種修改方式，而此處所定義的一般主旨可適用其他 具體實施例，且不必有任何創新。因此，本發明不限於此 處所示的具體實施例，而是符合此處所述之主旨和創新特 徵的最廣範圍。
O:\69\69230-941208.ptc 第34頁
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/500,360 US6377814B1 (en) | 2000-02-07 | 2000-02-07 | Method and apparatus for supervising transmit power in a high data rate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW515209B true TW515209B (en) | 2002-12-21 |
Family
ID=23989069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW090102648A TW515209B (en) | 2000-02-07 | 2001-05-08 | Method and apparatus for supervising transmit power in a high data rate system |
Country Status (19)
| Country | Link |
|---|---|
| US (2) | US6377814B1 (zh) |
| EP (3) | EP1650881B1 (zh) |
| JP (1) | JP4750336B2 (zh) |
| KR (2) | KR100924058B1 (zh) |
| CN (3) | CN100471082C (zh) |
| AT (3) | ATE522986T1 (zh) |
| AU (2) | AU3805801A (zh) |
| BR (2) | BR0108123A (zh) |
| CA (1) | CA2399728C (zh) |
| DE (1) | DE60122290T2 (zh) |
| ES (1) | ES2369779T3 (zh) |
| HK (1) | HK1053553A1 (zh) |
| IL (3) | IL151054A0 (zh) |
| MX (1) | MXPA02007600A (zh) |
| NO (1) | NO327028B1 (zh) |
| RU (1) | RU2264035C2 (zh) |
| TW (1) | TW515209B (zh) |
| UA (1) | UA71663C2 (zh) |
| WO (1) | WO2001058046A2 (zh) |
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