TWI364997B - Wireless communication method and apparatus for selecting and reselecting cells based on measurements performed using dircetional beams and an omni-directional beam pattern - Google Patents

Wireless communication method and apparatus for selecting and reselecting cells based on measurements performed using dircetional beams and an omni-directional beam pattern Download PDF

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TWI364997B
TWI364997B TW094128267A TW94128267A TWI364997B TW I364997 B TWI364997 B TW I364997B TW 094128267 A TW094128267 A TW 094128267A TW 94128267 A TW94128267 A TW 94128267A TW I364997 B TWI364997 B TW I364997B
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cell
cells
subset
measurement
omnidirectional
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TW094128267A
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TW200627993A (en
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Lucia Iacono Ana
Stern-Berkowitz Janet
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Interdigital Tech Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H04W36/083—Reselecting an access point wherein at least one of the access points is a moving node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

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

Description

1364997 九、發明說明： 【發明所屬之技術領域】 本發明係有關無線多胞元通信系統更特別是，本發明係 有關藉由使用方向性波束及全向波型測量被接收自胞元之信 號選擇及再選擇胞元之方法及裝置。 【先前技術】 與無線通^相關之最重要議題之一係如何改良促進通信 之無線多胞元通信系統容量。被開發之一新領域係使用方向性 波束天線來改良基地台及無線傳送/接收單元(WTRUs)間之正 向及反向鏈路之鏈路邊際。方向性天線對傳統全向天線之增加 增益係增加無線傳送/接收單元及基地台處之被接收信號增 益。 當無線傳送/接收單元被賦予電源時，無線傳送/接收單元 係執行起始胞元搜尋程序，其期間無線傳送/接收單元測量被 接收自複數胞元之複數信號並選擇具有最強信號位準之胞元 之一。例如，分碼多重存取(CDMA)系統中，無線傳送/接收單 70係獲得來自胞元之前導信號並接著同步化該胞元。為了獲得 前導信號，無線傳送/接收單元搜尋所有已知前導編碼之可能 性’並選擇具有最強前導信號之胞元。胞元被選擇之後且當無 線傳送/接收單7L從-位置移動至另—位置時，無線傳送/接收 單兀可找到一個登錄之較佳胞元(也就是具有較佳品質測量之 胞兀）。再評價該被選擇胞元之程序係被稱為胞元再選擇或閒 置交遞。 切換波束系統係為若干固定方向性波束被定義且收發器 6 選擇提供最佳信號品質及最少干擾之方向性波束之系統。無線 傳送/接收單元處之方向性天線使用係須對各方向性波束測量 “遽位準來選擇天線之最佳方向性模式。無線傳送/接收單元 必須繼續監視各方向性模式中之被接收信號位準，並定期再選 擇最佳方向性模式來適應環境改變及無線傳送/接收單元之移 動。被接收於無線傳送/接收單元之信號位準係因多路傳送而 經常改變。 起始胞元選擇及胞元再選擇程序中，無線傳送/接收單元 了利用被切換波束糸統。為被裝設被切換波束天線之無線傳送 /接收單元設計胞元選擇及胞元再選擇程序時，執行選擇及再 選擇程序所花費時間及該被選擇或被再選擇胞元/波束效能之 間係具有置換關係。 【發明内容】 本發明係有關選擇及再選擇基於使用複數方向性波束及/ 或全向波型完成測量無線通信系統中之胞元之方法及裝置。該 系統包含複數胞元及至少一無線傳送/接收單元。各胞元係被 至少一基地台服務。無線傳送/接收單元係包含於複數方向性 波束及全向波型間產生及切換一波束之切換波束(也就是智慧) 天線。 ， 依據本發明第一實施例，無線傳送/接收單元係使用全向 波型測罝被接收自複數胞元之信號。無線傳送/接收單元係基 於使用全向波型完成測量被接收自複數胞元之信號結果來選 擇具有最強信號之胞元。無線傳送/接收單元係登錄該被選擇 胞元並接著使用各複數方向性波束測量被接收自該被選擇胞 元之信號。無線傳送/接收單元係基於使用方向性波束測量被 接收自該被麵胞元之信號結果來娜具有最強信號之方向 性波束作為與該被選擇胞元通信之主動波束。 依據本發明第二實施例，無線傳送/接收單元係使用複數 方向/生波束或全肖波獅彳量被接收自複數胞元之信號。無線傳 送/接收單元係基於使用複數方向性波束或全向❹測量被接 收自複數航之信魏絲選有最強錢之胞元/波束組 。。無線傳送/接收單元係使用該被選擇波束作為通常被用來 與被選擇胞元通信之主動波束來登錄該被選擇胞元。 依據本發明第三實施例，無線傳送/接收單元係使用全向 波型測量被接收自複數胞元之信號。無線傳送/接收單元係基 於使用全向波型完成測量被接收自複數胞元之信號結果來選 擇具有一胞元子組。無線傳送/接收單元接著使用各複數方向 性波束測量被接收自各該胞元之信號。無線傳送/接收單元係 基於使用各複數方向性波束測量被接收自該子組中之各胞元 之信號結果來選擇具有最強信號之胞元/波束組合。無線傳送/ 接收單元係使用該被選擇波束作為通常被用來與被選擇胞元 通信之主動波束來登錄該被選擇胞元。 依據本發明第四實施例，無線傳送/接收單元係使用通常 被用來與被選擇胞元通信之主動波束來登錄該被選擇胞元及 測量被接收自複數鄰接胞元之信號。無線傳送/接收單元係基 於使用該主動波束測量被接收自該複數鄰接胞元之信號結果 來選擇該鄰接胞元之子組。無線傳送/接收單元係使用複數方 向性波束或全向波型測量被接收自鄰接胞元之信號。若無線傳 送/接收單元決定被接收自該子組中之鄰接胞元之信號最強測 1364997 « * 量結果係高於被接收自該;^選擇胞元之信號最佳測量結果，則 無線傳送/接收單元啟動從被選擇胞元至具有最強測量結果之 子組中之鄰接胞元之胞元交遞。 依據本發明第五實施例，無線傳送/接收單元係使用通常 被用來触選擇胞元通信之主動波束來登錄馳選擇胞元及 測里被接收自複數鄰接胞元之信號，無線傳送/接收單元係基 於使用该主動波束測量被接收自該複數鄰接胞元之信號結果 來選擇該鄰接胞元之第一子組。無線傳送/接收單元係使用全 向波型測量被接收自該第一子組中之鄰接胞元之信號。無線傳 送/接收單元係基於測1被接收自該第一子組中之複數鄰接胞 元之彳5號結果來選擇該鄰接胞元之第一子組之第二子組。無線 傳送/接收單元係使用各複數方向性波束測量被接收自該第二 子組中之鄰接胞元之信號。若無線傳送/接收單元決定被接收 自第二子組中之鄰接胞元之信號最強測量結果係高於被接收 自該被選擇胞元之信號最佳測量結果，則無線傳送/接收單元 啟動從被選擇胞元至具有最強測量結果之第二子組中之鄰接 胞元之胞元交遞。 依據本發明第六實施例，無線傳送/接收單元係使用通常 全向波型來登錄該被選擇胞元及測量被接收自複數鄰接胞元 之信號。無線傳送/接收單元係基於使用該全向波型測量被接 收自該複數鄰接胞元之信號結果來選擇該鄰接胞元之子組。無 線傳送/接收單元係使用複數方向性波束測量被接收自該子組 中之各鄰接胞元之信號。若無線傳送/接收單元決定被接收自 該子組中之鄰接胞元之信號最強測量結果係高於被接收自該 被選擇胞元之信號最佳測量結果，則無線傳送/接收單元啟動 9 從=擇胞元至具有最_量結果之子財之鄰接胞元之胞 疋父遞。 【實施方式】 此後，”無線傳輸/接收單元，，名詞係包括但不受限於使用者 設備(UE)，行動站’蚊或行_戶單元，呼叫器或任何可操 作於無線之其他類魏置。這些項在此可被交遞使用。 此後1稱為"基地台"名詞者，係包括但不受限於B節點，位 址控制器’存取點(AP)或無線環境巾之任何其他類型接介裝 置。 本發明特性可被併入積體電路(IC)或被配置於包含複數 互連組件之電路中。 ^第1圖顯示依據本發明操作之無線通信系統100。無線通信 系統100係包含複數基地台i 04及複數無線傳輸/接收單元 102各基地α 1〇4係服務複數胞元106至少之一。各無線傳輸/ 接收單元102係被登錄至少一胞元丨〇6，並包含被用來產生複數 方向性波束或全向波型之一切換波束天線1〇8。無線傳輸/接收 單元102係於複數方向性波束或全向波型間切換波束以便與胞 元106之基地台1〇4通信。 當無線傳輸/接收單元102被打開時，起始胞元搜尋程序係 被啟動。起始胞元搜尋程序期間，無線傳輸/接收單元1〇2係接 收來自無線傳輸/接收單元1 〇2附近之複數胞元1 〇6之信號，並 依據預定準則選擇一胞元106。使用切換波束天線〗〇8之起始胞 元搜尋程序期間，無線傳輸/接收單元1〇2係使用全向波型或方 向性波束。一旦被與胞元106登錄之無線傳輸/接收單元1〇2被 10 選擇，則無線傳輸/接收單元102定期監視來自鄰接胞元之信 號，並經由胞元再選擇程序執行胞元交遞。 第2圖係為依據本發明第一實施例包含使用無線傳送/接 收單元102之切換波束天線1〇8選擇胞元1〇6之方法步驟處理 200流程圖。當無線傳送/接收單元1〇2被開啟時，無線傳送/接 收單兀102係進入預設模式，藉此全向波型係從無線傳送/接收 單元102之切換波束天線108被發射出。步驟2〇2中，無線傳送/ 接收單元102係使用全向波型來測量被接收自複數胞元】〇6之 4°號^驟204中，無線傳送/接收皁元係基於被執行於步驟202 之測置結果來選擇具有最強信號之胞元1〇6。步驟2〇6中，無線 傳送/接收單元係登錄該被選擇胞元1〇6(步驟2〇6)。第一實施例 之優點係該胞元選擇程序可被快速執行。 一旦無線傳送/接收單元1〇2被登錄該被選擇胞元，則 波束選擇程序係被執行。最佳波束係藉由評估所有被定義波束 (或可替代為被定義波束子組），及決定被無線傳送/接收單元 102之切換波朿天線1〇8用來傳送及接收之最佳光束來選擇。波 束選擇程序可於步驟204之胞元選擇之後或無線傳送/接收單 元102被指派至該被選擇胞元106所提供與該被選擇胞元1〇6之 基地台104通信之專用頻道之登錄步驟2〇6之後被執行。任一例 中，當切換被發射自天線1〇8之波束為各複數方向性波束時， 無線傳送/接收單元102係測量被接收自該被選擇胞元〗〇6之信 號(步驟208[無，線傳送/接收單元1〇2接著基於被執行於步驟 208甲之測量結果來選擇具有最強信號之方向性波束作為與該 被選擇胞元106通信之主動波束(步驟2丨〇)。無線傳送/接收單元 102維持與該被選擇胞元106之登錄直到另一胞元〗〇6經由胞元 1364997 擇私序被選擇為止，當參考第5圖至第7圖時其將被詳細解 釋。 、’
第3圖係為依據本發明第二實施例包含使用無線傳送/接 收單元102之切換波束天線108選擇胞元1〇6之方法步驟處理 300流程圖。當無線傳送/接收單元1〇2被開啟時，無線傳送々妾 收單元102係藉由將被發射自天線log之波束切換為各複數方 向性波束或全向波型來測量被接收自複數胞元丨〇6之信號(步 驟302)。此實施例甲，無線傳送/接收單元1〇2不僅選擇胞元1〇6 來登錄’亦選擇波束當作與該被選擇胞元通信之主動波束。步 驟304中，無線傳送/接收單元係基於被執行於步驟3〇2之測量 結果來選擇具有最強信號之胞元/波束組合。步驟306中，無線 傳送/接收單元係使用該被選擇波束作為通常被用來與該被選 擇胞元通信之主動波束來登錄該被選擇胞元1〇6。無線傳送/接 收單7G102維持與目前胞元1〇6之登錄直到另一胞元1〇6經由胞 元選擇程序被選擇為止。
處理300中，使用全向波型來執行起始胞元搜尋程序之優 先!·生可被指定’藉此若被選擇波束非全向波型，則標示最佳方 向性波束/胞το組合之測量結果係被與標示最佳全向波型/胞元 組合之測量結果做比較因此，方向性波束僅絲方向性波束 ，關之測量結果超過與全向波_關之測量結果有一預定門 艦才被選擇。否則，全向波型係被選擇。該門檻可被設定為零， 該例中全向波型並不具有優先性。 。。第4圖係^依據本發明第三實施例包含使用無線傳送/接 =單元102之切換波束天線⑽選擇胞元之方法步驟處理流 域田無線傳送/接收單元1〇2被開啟時，無線傳送/接收單元 12 1364997 102係使用發射自無線傳送/接收單元102之切換波束天線ι〇8 之全向波型來測量被接收自複數胞元丨06之信號(步驟4〇2)。 “ J Tim 線傳送/接收單元102接著基於被執行於步驟402之測量結果來 選擇胞元之子組(步驟404)。選擇胞元子組時，無線傳送/接收 單元102可基於使用全向波型之測量結果，具有預定門檻以上 之測量結果之胞元，或使用某些其他準則來降低不需被測量之 胞元數來選擇最佳胞元。此降低胞元選擇或再選擇程序中之時 間花費。 ' 無線傳送/接收單元102係使用被發射自無線傳送/接收單 TC102之切換波束天線108之複數方向性波束來測量子組中各 胞兀之信號(步驟406)。無線傳送/接收單元1〇2基於被執行於步 驟406之測量結果來選擇具有最強信號之胞元/波束組合(步驟 4〇8)。無線傳送/接收單元1〇2係使用該被選擇波束作為與該被 選擇胞元通信之主動波束來登錄該被選擇胞元1〇6(步驟 410)。無線傳送/接收單元1〇2維持與目前胞元1〇6之登錄直到另 一胞元106經由胞元選擇程序被選擇為止。 處理40G巾’伽全向波型來執行起始胞元搜尋程序之優 先性可被指疋，藉此若被選擇波束非全向波型，則標示最佳方 向性波束/胞尬合之測量絲储與標示最佳全向波型/胞元 組合之測量結果舰較。因此，方向性波練若與方向性波束 相關之測量結果超過與全向波型相關之測量結果有—預定^ ^才被選擇。· ’全向波型係被選擇。該服可被設定為零， 該例中全向波型並不具有優先性。 。。第5圖係為依據本發明第四實施例包含使用無線傳送/接 收單元102之切換波束天線! 〇8再選擇胞元廳之方法步驟處理 13 1364997 500流程圖。起始胞元搜尋程序被完成且無線傳送/接收單元 102被登錄該被選擇胞元106之後，無線傳送/接收單元1〇2定期 或不定期使用被用來與該被選擇胞元106通信之主動波束來測 i被接收自複數鄰接胞元之信號(步驟5〇2)。無線傳送/接收單 元102基於被執行於步驟5〇2之測量結果來選擇鄰接胞元之子 組(步驟504)。選擇鄰接胞元子組時，無線傳送/接收單元1〇2 可基於例如其測量結果，具有預定門檻以上之測量結果之胞 兀，或具有超過被選擇胞元測量有一預定門檻之測量結果之胞 元來選擇最佳胞元。可選擇是，胞元子組可包含所有被測量胞 元。 無線傳送/接收單元102係使用被發射自無線傳送/接收單 元102之切換波束天線1 〇8之複數方向性波束或全向波型來測 里被接收自子組中之各鄰接胞元之信號(步驟5〇6)。無線傳送/ 接收單元102接著決定被接收自子組中之鄰接胞元之信號最強 測置結果是否較被接收自該被選擇胞元1 〇6之信號最佳測量結 果為高(可被設定為零之某些門檻)(步驟5〇8)。若步驟508之決 定為負，則無線傳送/接收單元102係維持與該被選擇胞元1〇6 之登錄且處理500結束。若步驟508之決定為正，則無線傳送/ 接收單元102啟動從該被選擇胞元至具有最強測量結果之子組 中之鄰接胞元之胞元交遞(也就是執行胞元再選擇處理)(步驟 510)。 第6圖係為依據本發明第五實施例包含使用無線傳送/接 收單元102之切換波束天線108再選擇胞元1〇6之方法步驟處理 600流程圖。起始胞元搜尋程序被完成且無線傳送/接收單元 102被登錄該被選擇胞元106之後，無線傳送/接收單元丨〇2定期 14 1364997 • t 或不定期使用被用來與該被選擇胞元106通信之主動波束來測 里被接收自複數鄰接胞元之信號(步驟602)。無線傳送/接收單 元102基於被執行於步驟602之測量結果來選擇鄰接胞元之第 一子組(步驟604)。選擇鄰接胞元之第一子組時，無線傳送/接 收單元102可基於例如使用其測量結果，具有預定門楹以上之 測里結果之胞元，或具有超過被選擇胞元測量有一預定門楹之 測量結果之胞元來選擇最佳胞元。可選擇是，胞元子組可包含 所有被測量胞元。 無線傳送/接收單元102係使用被發射自無線傳送/接收單 元102之切換波束天線1〇8之全向波型來測量被接收自第一子 組中之鄰接胞元之信號(步驟606)。無線傳送/接收單元丨〇2接著 基於被執行於步驟606之測量結果來選擇鄰接胞元之第一子組 之第二子組(步驟608)。選擇鄰接胞元之第二子組時，無線傳 送/接收單元102可基於例如其測量結果，具有預定門檻以上之 ’貝J1結果之胞元，或具有超過被選擇胞元測量有一預定門檻之 測量結果之胞元來選擇最佳胞元。可選擇是，該子組可包含所 有屬於第一子組之胞元。 無線傳送/接收單元102係使用被發射自無線傳送/接收單 TC102之切換波束天線1〇8之各複數方向性波束來測量被接收 自第二子組中之鄰接胞元之信號(步驟61〇)。無線傳送/接收單 ，1〇2接，決领接收自第二子組中之鄰接胞元之信號最強測 量釔果疋否較被接收自該被選擇胞元1〇6之信號最佳測量結果 為高(可被設定為零之某些門檻)(步驟612)。若步驟612之決定 為負’則鱗傳送/接收係轉與紐選獅元1〇6之 登錄且處删〇結束。若步獅12之蚊為正，職線傳送/接 15 1364997 i 收單元102啟動從該被選擇胞元至具有最強測量結果之第二子 組中之鄰接胞元之胞元交遞(也就是執行胞元再選擇處理)(步 驟614)。 第7圖係為依據本發明第六實施例包含使用無線傳送/接 收單元102之切換波束天線108再選擇胞元1〇6之方法步驟處理 700流程圖。起始胞元搜尋程序被完成且無線傳送/接收單元 102被登錄該被選擇胞元1〇6之後，無線傳送/接收單元1〇2定期 或不定期使用被發射自無線傳送/接收單元102之切換波束天 線10 8之全向波型來測量被接收自複數鄰接胞元之信號(步驟 702)。無線傳送/接收單元1 〇2基於被執行於步驟7〇2之測量結果 來選擇鄰接胞元之子組(步驟704)。選擇鄰接胞元之子組時， 無線傳送/接收單元102可基於例如使用其測量結果，具有預定 門檻以上之測量結果之胞元，或具有超過被選擇胞元測量有一 預定門檻之測量結果之胞元來選擇最佳胞元。可選擇是，胞元 之第一子組可包含所有被測量胞元。 無線傳送/接收單元102係使用被發射自無線傳送/接收單 元102之切換波束天線丨⑽之各複數方向性波束來測量被接收 自子組中之各鄰接胞元之信號(步驟7〇6)。無線傳送/接收單元 102接著決定被接收自子組中之鄰接胞元之信號最強測量結果 是否較被接收自該被選擇胞元106之信號最佳測量結果為高 (可被設定為零之某些門檻X步驟7〇8)。若步驟7〇8之決定為 負，則無線傳送/接收單元1〇2係維持與該被選擇胞元之登錄且 處理700結束。若步驟7〇8之決定為正，則無線傳送/接收單元 102啟動從該被選擇胞元至具有最強測量結果之子組中之鄰接 胞元之胞元交遞(也就是執行胞元再選擇處理)(步驟710)。 16 1364997 第8圖係為依據本發明被配置使用切換波束天線選擇及再 選擇胞元之無線傳送/接收單元102方塊圖。無線傳送/接收單元 102包含一切換波束天線η〗，一波束切換單元114，一收發器 116 ’測里單元118及一處理器12〇。切換波束天線112包含被 用來選擇歸生複數方向性波束及全向波狀複數天線元件。 第9圖係為如針騎示之鱗傳送/接收單元1()2之切換 波束天線112啦生之方向波酬。餘意，八⑻波束係被指 繪於第9圖，且任何波束數量均可被產生。因此，本發明應不 • 被建構限制任何特定波束數量。 波束切換單元114侧於切換波束為魏方向性波束之一 及方向性波束及全向波型之一之間。收發器116可接收來自切 敝束天線m之健並將其舰至啦單元m。測量單元 us係為姻麵量被接收自切紐束天線112之複數信號之 基帶處理單元部分。處理n12()係分別㈣波束切鮮， 收發器116及測量單元118，並實行如第2圖第7圖所示上理 200-700。 ❿ 應注意，本發明不限於二因次平面空間，而可應用於三因 次平面空間。 雖然本發明特性及元件已被說明於特定組合中之較佳實 施例中’但各特色或元件均可無較佳實施例之其他特色或元件 而被翔使用，或具有或無本發他特色及元件之各種組合 中。 雖然本發明已以較佳實施例做說明，但是熟練技術人士仍 可了解被概述於以下申請專利範圍中之本發明範缚内之 變異。 〃 17 【圖式簡單說明】 f1圖顯碰據本發鴨作之無線通信系統； 第®至第4圖係為包含第j圖系統所包括之無線傳送/接 „行選擇登錄之胞元及選擇被用來與該被選擇胞元 D之波束之方法步驟處理流程圖； 第5圖至第7圖係為包含第i圖系統所包括之無線傳送/接 早^所執行再選擇胞元之方法步驟處理流程圖； 7L方 塊圖；及 第9圖顯示第8圖之絲傳送/接收單元所製造 波束例 第8圖係為包含第1圖系統所包括之無線傳送/接收單 之方向性 【主要元件符號說明】 1〇〇無線通信系統 102無線傳輸/接收單元 104基地台 106胞元 108、112切換波束天線 114波束切換單元 116收發器 118測量單元 120處理器

Claims (1)

1364997
申請專利範圍： 種於包含複數航之練通㈣、統中操作的行動單元， (a)—切換波束天線，用於產生複數方向性波束及一 包含 型 全向波 〇>)-測量單元，於電源開啟時，使 型來執行基於測量自該等胞元所接收 理器，基於使用該等方向性波束或該全向波型所執行 里、、、。果來選擇一具有最強信號之胞元/波束組合；以及 無線電收發機，使用該被選擇波束作為—用來與該被 &擇胞元通信之主動波束來登錄該被選擇胞元。 ^入申請專纖圍綱的行動單元，其中若該被選擇波束並 王向波型，該測量单元則比較一標示該最佳方向性波束/ 2組合之測量結果及-標示該最佳全向波型/胞元組合之該 測量結果。 3.如申請專利範圍第2項的行動單元，其中若與一方向性波束 ，關之該·結果超過與該全向波型侧之侧量結果一預 定門捏’則選擇該方向性波束，而當與該方向性波束相關之該 測置結果未超過與該全向波型_之_量結糾，則選擇該 全向波型。 4·種於包合複數胞元之無線通信系統中的無線傳送/接收單 元，包含： ⑻-切換波束天線，用於產生複數方向性及—全 型； 19 1364997 100年12月14日修正替換頁 (b)於電^鱗’使_全向波型綠行—-胞元所接收彳§號之一起始胞元選擇之裝置； ⑹基於使職全向波型所執行該等測量結絲選擇該等胞 元之一子組之裝置； ⑷使用各該方向性波束來測量自各該胞元所接收信號之裝 置； ⑻基，使用各财向性波束所執行料測量結果來選擇一 具有該最強信號之波束/胞元組合之裝置；以及 (f)使用該被選擇波束作為用來與馳選擇胞元通信之一主 動波束來登錄該被選擇胞元之裝置。 5· -種於包含龍胞元之鱗通⑽統中的鱗傳送/接收單 元，包含： (a) —切換波束天線，用於產生複數方向性波束及一全向波 型； (b) 使用一通常用來與一被選擇胞元通信之主動波束來登錄 該被選擇胞元及測量自鄰接該被選擇胞元之胞元所接收信號 之裝置； (c) 基於使用該主動波束所執行該等測量結果來選擇該等鄰 接胞元之一子組之裝置； (d) 使用該等方向性波束或該全向波型來測量自該子組中之 各鄰接胞元所接收信號之裝置；以及 (e) 當自該子組中之該等鄰接胞元所接收信號的最強測量結 果高於自該被選擇胞元所接收信號的最佳測量結果，用以啟動 一從該被選擇胞元至具有最強測量結果之該子組中之一鄰接 胞元之胞元交遞之裝置。 20 1364997 __ 100年12月14日修正替換頁 6. 如申請專利範圍第5項之無線傳送/接收單元，其中若自該子 組中之該等鄰接胞元所接收信號的最強測量結果超過自該被 it擇胞το雌收信號的最制量結果有—财門檻，則啟動該 胞元交遞。 7. 如申請專利範圍第6項之無線傳送/接收單元其中該預定門 檻為零。 8. 種於包3複數胞元之無線通信彳、統巾的無線傳送/接收單 元，包含： ⑷-切換波束天線，用於產生複數方向性波束及一全向波 型； (b)使用-通常用來與—被選擇就通信之主動波束來登錄 抛轉就及啦自祕賴獅就之胞摘接收 之裝置； ⑷基於使_主動波束所執行該_量結果來選擇該等鄰 接胞元之一第一子組之裝置； W使用該全向波型來測量自該第—子組中之各該鄰接胞元 所接收信號之裝置； ⑹基於制該全向波型所執行該等測量結果來選擇該第一 子組中之該等鄰接胞元之一第二子組之裝置； (0使用鮮方向性波束來測量自該第二子組中之各該鄰接 胞元所接收信號之裝置；以及 旦(g)田自該第一子組中之該等鄰接胞元所接收信號的最強測 置結果向於自該被選擇胞元所接收信號的最佳測量結果，用以 啟動-從該破選擇胞元至具有最強測量結果之該第二子組中 之一鄰接胞元之胞元交遞之裝置。 21 1364997 ___ • 年】2月14曰修正替換頁 . 9.如申請專利範圍第8項之無線傳送/接收單元，其中若自該第 一子組中之該等鄰接胞元所接收信號的最強測量結果超過自 馳選魏摘織的最侧量結果有—歡門捏，則啟 動該胞元交遞。 m ' 10.如申請專利範圍第9項之無線傳送/接收單元，其中該預定 門權為零。 11，一種於包含複數胞元之無線通信系統中的無線傳送/接收 單元，包含： (a) —切換波束天線，用於產生複數方向性波束及一全向 型； ' (b) 使用該全向波型來登錄一被選擇胞元及測量自鄰接該被 選擇胞元的胞元所接收信號之裝置； (c) 基於使用該全向波型所執行該等測量結果來選擇該等鄰 接胞元之一子組之裝置； ⑷使用轉方向性波束來測量自該子組巾之各該鄰接胞元 所接收信號之裝置；以及 (:)當自該子組中之該等鄰接胞元所接收信號的最強測量結 果冋於自該被選擇胞元所接收信號的最佳測量結果，用以啟動 一從該被選擇胞元至具有該最強測量結果之該子組中之一鄰 接胞元之胞元交遞之裝置。 I2·如申請專利範圍第11項之無線傳送/接收單元，其中若自該 子組中之該等鄰接胞元所接收信號的最強測量結果超過自該 被選擇胞元所接收信號的最佳測量鲒果有一預定門檻，則啟動 該胞元交遞。 13·如申請專利範圍第12項之無線傳送/接收單元，其中該預定 22 1364997 門楹為零。 100年12月14日修正替換頁 23
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