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TWI568281B - 依據使用者設備的電源偏好而卸載ｗｉｆｉ的機制 - Google Patents

依據使用者設備的電源偏好而卸載ｗｉｆｉ的機制 Download PDF

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TWI568281B
TWI568281B TW103119568A TW103119568A TWI568281B TW I568281 B TWI568281 B TW I568281B TW 103119568 A TW103119568 A TW 103119568A TW 103119568 A TW103119568 A TW 103119568A TW I568281 B TWI568281 B TW I568281B
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enb
wlan
network
wifi
threshold
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TW201517645A (zh
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阿里 寇克
馬魯堤 辜塔
沙堤許 賈
芮絲 凡尼薩比
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英特爾股份有限公司
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
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    • H—ELECTRICITY
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    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
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  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
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  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

依據使用者設備的電源偏好而卸載WIFI的機制
實施例關於無線網路中電子裝置所實施之作業及通訊。若干實施例關於確定何時從蜂巢式網路卸載使用者設備(UE)至WiFi網路。
諸如蜂巢式電話之使用者設備(UE)可透過蜂巢式網路傳輸及接收資料。UE之連接可從蜂巢式網路卸載至WiFi網路，使得資料從WiFi網路而非蜂巢式網路發送。該等卸載可減輕透過蜂巢式網路傳輸資料，可減少透過蜂巢式網路傳輸資料相關使用者費用，且通常可改進UE發送及接收資料之速率。
102、202‧‧‧使用者設備
104‧‧‧演進UMTS陸地無線存取網路
204‧‧‧演進的節點B
206‧‧‧無線局域網路
208‧‧‧電源偏好指示信息
210‧‧‧卸載指令
212‧‧‧卸載啟動
300‧‧‧方法
302、304、306‧‧‧流程
400‧‧‧行動裝置
402‧‧‧外殼
404‧‧‧顯示幕
406‧‧‧鍵盤
408、530‧‧‧天線
410‧‧‧非揮發性記憶體埠
412‧‧‧揚聲器
414‧‧‧應用處理器
416‧‧‧內部記憶體
418‧‧‧圖形處理器
420‧‧‧麥克風
422‧‧‧相機
500‧‧‧電腦系統機器
502‧‧‧處理器
504‧‧‧主記憶體
506‧‧‧靜態記憶體
508‧‧‧互連
510‧‧‧視訊顯示單元
512‧‧‧字母數字輸入裝置
514‧‧‧使用者介面導航裝置
516‧‧‧儲存裝置
518‧‧‧信號產生裝置
520‧‧‧網路介面裝置
522‧‧‧機器可讀取媒體
524‧‧‧指令
526‧‧‧通訊網路
528‧‧‧感測器
532‧‧‧輸出控制器
534‧‧‧電力管理控制器
圖1描繪使用者設備(UE)及演進UMTS陸地無線存取網路(EUTRAN)間連接之範例。
圖2描繪連接方案之範例，其允許使用者設 備(UE)從蜂巢式網路卸載至WiFi網路。
圖3描繪方法範例流程圖，用於啟動從蜂巢式網路卸載至WiFi網路。
圖4描繪行動用戶裝置之範例，其上可部署文中所說明之組態及技術。
圖5描繪示例電腦系統，其可用作文中所說明之電腦或網路裝置的計算平台。
【發明內容及實施方式】
下列說明及圖式充分描繪特定實施例，使熟悉本技藝之人士可加以實現。其他實施例可結合結構、邏輯、電氣、程序、及其他改變。若干實施例之部分及特徵可包括於其他實施例中或加以取代。申請項中所提出之實施例包含申請項之所有可用等效項。
在現有蜂巢式網路中，蜂巢式網路決定何時卸載使用者設備(UE)至WiFi網路。典型地，蜂巢式網路依據單元負載、營運商部署之存取點(AP)的可用性、及/或各式AP之接收信號強度(RSRP)而決定卸載。現有蜂巢式網路並不依據UE之電力消耗而決定卸載。
在典型UE中，掃描WiFi存取點(AP)可消耗顯著電量。當UE經由蜂巢式網路連接時發生掃描，但當UE連接至WiFi網路時則不發生掃描。結果從蜂巢式網路卸載UE至WiFi網路可允許UE停止或減少掃描 AP，因此UE可節省電力。
基於現有蜂巢式網路的問題是UE無法通知蜂巢式網路UE係以低電力運行，因此無法指示蜂巢式網路為節省電力原因而卸載UE。文中所討論之技術處理此問題，使得UE可指示其省電需求至蜂巢式網路，且蜂巢式網路可回應以啟動卸載。因此，蜂巢式網路可藉由修改及/或調整其卸載政策而啟動卸載。例如，網路可降低(或提升)特定閾值，使得UE現在超過(或不再超過)閾值，並啟動卸載。
圖1描繪使用者設備(UE)102及演進UMTS陸地無線存取網路(EUTRAN)104間之連接範例。無線電資源控制(RRC)連接重組資訊從UE 102傳送至EUTRAN 104，及從EUTRAN 104傳送至UE 102。UE輔助資訊從UE 102傳送至EUTRAN 104。圖1符合3GPP規格36.331 v11.3.0。
圖2描繪連接方案之範例，其允許從蜂巢式網路卸載使用者設備(UE)202至WiFi網路。蜂巢式網路經由演進的節點B(eNB)204傳達至UE。WiFi網路經由無線局域網路(WLAN)206傳達至UE。
UE 202發送電源偏好指示(PPI)信息208至eNB 204，以指示UE 202具有低電力。低電力之閾值可包括電池壽命之指定分數，作業之剩餘指定時間、或其他適當閾值。PPI信息208指示卸載要求至eNB 204。
回應於PPI信息208，eNB 204可於卸載指令 210中啟動針對UE 202之卸載。卸載指令210可包括卸載命令。卸載指令210亦可包括所欲WLAN 206之基本服務集識別(BSSID)，使得UE 202知悉卸載至何處。
關於迫使UE 202卸載之機制，eNB 204可調整其政策。例如，為啟動卸載，eNB 204可暫時調整參考信號接收功率(RSRP)之閾值。預先組配以於其RSRP值降至閾值以下時卸載的UE 202接收調整的閾值，確定其不再超過閾值，並啟動卸載至WLAN 206。暫時調整RSRP閾值僅為一範例；eNB 204亦可改變其他適當政策以使UE 202啟動卸載。
回應於卸載指令210，藉由發送卸載啟動212至確定的WLAN 206，UE 202可接觸由卸載指令210中BSSID所確定的WLAN 206。WLAN 206適當地回應並連接UE 202至WiFi網路。一旦UE 202經由WLAN 206而卸載及連接至WiFi網路，UE 202可經由WiFi網路而發送及接收資料。
圖2之連接方案要求修改至目前的3GPP規格。目前，PPI用以在UE及eNB之間傳遞電源偏好信號，但整體或部分均未使用電源偏好以觸發卸載事件。
除了迫使UE 202卸載以外，eNB 204可減少UE 202需掃描之WiFi存取點(AP)數量。掃描較少AP可減少UE 202之電力使用。
圖2中連接方案有四個方面。第一，UE發送PPI以指示卸載要求至WLAN。第二，若UE發送PPI， 則eNB調整及改變政策。第三，eNB於接收PPI之後改變WLAN卸載之閾值。第四，eNB於接收PPI之後減少UE需掃描之AP數量。其他方面亦可。
圖3描繪由使用者設備(UE)執行用於啟動從蜂巢式網路卸載至WiFi網路之方法300的範例流程圖。方法300可由圖1或2之UE 102、202或由另一適當UE執行。蜂巢式網路經由演進的節點B(eNB)連接。WiFi網路經由無線局域網路(WLAN)連接。在302，方法300發送電源偏好指示(PPI)信息至eNB，以指示UE具有低電力。在304，方法300從eNB接收包括WLAN之識別的卸載指令。在306，方法300連接至WLAN。此僅為啟動卸載之方法的一範例；亦可使用其他適當方法。類似方法可由eNB執行。
儘管特定參照3GPP LTE/LTE-A、IEEE 802.11、及藍牙通訊標準而提供無線網路連接之先前範例，將理解的是可結合文中所說明之技術使用各類其他WWAN、WLAN、及WPAN協定及標準。該些標準包括但不侷限於來自3GPP(例如HSPA+、UMTS)、IEEE 802.16(例如802.16p)、或藍牙(例如由藍牙特益團體定義之藍牙4.0等標準)標準系列之其他標準。其他可應用之網路組態可包括於目前所說明之通訊網路的範圍內。將理解的是在該等通訊網路上之通訊可使用任何數量個人區域網路、LAN、及WAN，使用有線或無線傳輸媒體之任何組合予以促進。
以上所說明之實施例可以硬體、韌體、及軟體之一者或組合予以實施。各式方法或技術，或其某些方面或部分可採以實體媒體體現之程式碼(即指令)的形式，諸如快閃記憶體、硬碟機、可攜式儲存裝置、唯讀記憶體(ROM)、隨機存取記憶體(RAM)、半導體記憶體裝置(例如電可程控唯讀記憶體(EPROM)、電可抹除可程控唯讀記憶體(EEPROM))、磁碟儲存媒體、光學儲存媒體、及任何其他機器可讀取儲存媒體或儲存裝置，其中，當程式碼載入並由諸如電腦或網路裝置之機器執行時，機器便成為實現各式技術之設備。
機器可讀取儲存媒體或其他儲存裝置可包括任何非暫態機制，用於以機器(例如電腦)可讀取之形式儲存資訊。若為在可程控電腦上執行之程式碼，則計算裝置可包括處理器、可由處理器讀取之儲存媒體(包括揮發性及非揮發性記憶體及/或儲存元件)、至少一輸入裝置、及至少一輸出裝置。可實施或利用文中所說明之各式技術的一或多程式可使用應用程式介面(API)、可重複使用控制等。該等程式可以高階程序或物件導向程式語言實施，以與電腦系統通訊。然而，若有需要，程式可以組合或機器語言實施。在任何狀況下，語言可為編譯或解譯語言，並與硬體實施組合。
圖4描繪行動裝置400之範例。行動裝置400可為使用者設備(UE)、行動站(MS)、行動無線裝置、行動通訊裝置、平板、手機、或其他類型行動無線計 算裝置。行動裝置400可包括外殼402內之一或多天線408，其經組配以與熱點、基地台(BS)、演進的節點B(eNodeB)、或其他類型WLAN或WWAN存取點通訊。行動裝置400可經組配以使用多項無線通訊標準通訊，包括選自4GPPLTE、WiMAX、高速封包存取(HSPA)、藍牙、及Wi-Fi標準定義之標準。行動裝置400可使用個別天線針對每一無線通訊標準或共用天線針對多項無線通訊標準通訊。行動裝置400可於WLAN、WPAN、及/或WWAN中通訊。
圖4亦顯示麥克風420及一或多揚聲器412，其可用於行動裝置400之音頻輸入及輸出。顯示幕404可為液晶顯示(LCD)螢幕，或其他類型顯示幕，諸如有機發光二極體(OLED)顯示器。顯示幕404可經組配為觸控螢幕。觸控螢幕可使用電容、電阻、或另一類型觸控螢幕技術。應用處理器414及圖形處理器418可耦接至內部記憶體416，以提供處理及顯示能力。非揮發性記憶體埠410亦可用以提供資料輸入/輸出選項予使用者。非揮發性記憶體埠410亦可用以延伸行動裝置400之記憶體能力。鍵盤406可與行動裝置400整合或無線連接至行動裝置400以提供額外使用者輸入。亦可使用觸控螢幕提供虛擬鍵盤。設於行動裝置400前端(顯示幕)或後端之相機422亦可整合於行動裝置400之外殼402中。
圖5為方塊圖，描繪示例電腦系統機器500，其上可運行文中所討論之任何一種或多種方法。電腦系統 機器500可體現為UE 202、eNB 204、WLAN 206、或文中所說明或提及之任何其他計算平台。在替代實施例中，機器可以獨立裝置操作，或可連接(例如經由網路)至其他機器。在網路部署中，機器可以伺服器或伺服器-客戶網路環境中客戶機器之容量操作，或其可充當同級點對同級點(或分佈)網路環境中之同級機器。機器可為個人電腦(PC)，其可或不可為可攜式(例如筆記型電腦或輕省筆電)、平板、機上盒(STB)、遊戲控制台、個人數位助理(PDA)、行動電話或智慧手機、網路裝置、網路路由器、開關或橋接器、或可執行指明機器採取動作之指令(順序或其他)的任何機器。此外，雖然僅描繪單一機器，「機器」用詞亦將包括機器之任何集合，其可個別或聯合執行一組(或多組)指令以實施文中所討論之任何一項或多項方法。
示例電腦系統機器500包括處理器502(例如中央處理單元(CPU)、圖形處理單元(GPU)或二者)、主記憶體504、及靜態記憶體506，其經由互連508(例如鏈路、匯流排等)而相互通訊。電腦系統機器500可進一步包括視訊顯示單元510、字母數字輸入裝置512(例如鍵盤)、及使用者介面(UI)導航裝置514(例如滑鼠)。在一實施例中，視訊顯示單元510、輸入裝置512及UI導航裝置514為觸控螢幕顯示器。電腦系統機器500可額外包括儲存裝置516(例如驅動單元)、信號產生裝置518(例如揚聲器)、輸出控制器532、電力管理 控制器534、及網路介面裝置520(其可包括或操作地與一或多天線530、收發器、或其他無線通訊硬體通訊)，以及一或多感測器528，諸如全球定位系統(GPS)感測器、羅盤、位置感測器、加速計、或其他感測器。
儲存裝置516包括機器可讀取媒體522，其上儲存體現文中所說明之任何一項或多項方法或功能或為其利用之一或多組資料結構及指令524(例如軟體)。指令524亦可完全或至少部分駐於主記憶體504、靜態記憶體506內，及/或當其由電腦系統機器500執行期間駐於處理器502內，且主記憶體504、靜態記憶體506、及處理器502亦構成機器可讀取媒體。
雖然機器可讀取媒體522於示例實施例中描繪為單一媒體，「機器可讀取媒體」用詞可包括單一媒體或多媒體(例如集中化或分佈資料庫，及/或相關快取記憶體及伺服器)，其儲存一或多指令524。「機器可讀取媒體」亦可包括任何實體媒體，其可儲存、編碼或攜帶指令供機器執行，致使機器實施本揭露之任何一項或多項方法，或可儲存、編碼或攜帶該等指令利用或與其相關之資料結構。
指令524可進一步透過通訊網路526而被傳輸或接收，通訊網路526經由利用任何一種已知傳輸協定(例如HTTP)之網路介面裝置520而使用傳輸媒體。「傳輸媒體」用詞將包括任何非實體媒體，其可儲存、編碼或攜帶指令供機器執行，並包括數位或類比通訊信號或 其他非實體媒體以利該等軟體通訊。
應理解的是本說明書中所說明之功能單元或能力可被提及或標示為組件或模組，以便更特別地強調其實施獨立性。例如，組件或模組可實施為包含訂製大型積體(VLSI)電路或閘陣列之硬體電路、諸如邏輯晶片之現有半導體、電晶體、或其他個別組件。組件或模組亦可以可程控硬體裝置實施，諸如場可程控閘陣列、可程控陣列邏輯、可程控邏輯裝置等。組件或模組亦可以軟體實施，供各式類型處理器執行。可執行碼之確定的組件或模組例如可包含電腦指令之一或多實體或邏輯方塊，其可例如組織為物件、程序、或功能。然而，可執行碼之確定的組件或模組不需實體配置在一起，但可包含儲存於不同位置之不同指令，當邏輯地結合在一起時，包含組件或模組並達成組件或模組之表述用途。
事實上，可執行碼之組件或模組可為單一指令或許多指令，甚至可分佈於不同程式間之若干不同碼段上，並跨越若干記憶體裝置。類似地，文中可確定及描繪組件或模組內之作業資料，並可以任何適當形式體現及組織於任何適當類型資料結構內。作業資料可匯集為單一資料集，或可分佈於不同位置，包括在不同儲存裝置上，並可至少部分存在僅作為系統或網路上之電子信號。組件或模組可為被動或主動，包括可操作以實施所欲功能之代理程式。
所說明之方法、系統、及裝置實施例的其餘 範例包括下列非侷限性組態。每一下列非局限性範例可獨立存在，或可以任何排列組合，或與以下所提供或遍及本揭露之任何一或多其他範例組合。
提供摘要以允許讀者確定技術揭露之性質及要點。所傳達之理解為其將不用於侷限或解譯申請項之範圍或意義。下列申請項併入詳細說明，且每一申請項獨立存在作為個別實施例。

Claims (16)

  1. 一種由使用者設備(UE)執行之方法，用於啟動從蜂巢式網路卸載至WiFi網路，該蜂巢式網路經由演進的節點B(eNB)連接，該WiFi網路經由無線局域網路(WLAN)連接，該方法包含：發送電源偏好指示(PPI)信息至該eNB以指示該UE具有低電力；從該eNB接收包括該WLAN之基本服務集識別(BSSID)的卸載指令；連接至該WLAN；從該eNB接收參考信號接收功率(RSRP)之調整的閾值；確定該UE不再超過該閾值；以及啟動卸載至該WLAN。
  2. 如申請專利範圍第1項之方法，其中，接收該卸載指令包含感測eNB政策中之調整。
  3. 如申請專利範圍第1項之方法，其中，接收該卸載指令包含感測參考信號接收功率(RSRP)之閾值調整。
  4. 如申請專利範圍第1項之方法，進一步包含：從該eNB接收減少之WiFi存取點(AP)數量；以及掃描該減少之WiFi AP數量。
  5. 一種使用者設備(UE)，包含：電路，經組配以啟動從蜂巢式網路卸載至WiFi網路，該蜂巢式網路經由演進的節點B(eNB)連接，該 WiFi網路經由無線局域網路(WLAN)連接，該電路經配置以：發送電源偏好指示(PPI)信息至該eNB以指示該UE具有低電力；從該eNB接收包括該WLAN之基本服務集識別(BSSID)的卸載指令；連接至該WLAN；從該eNB接收參考信號接收功率(RSRP)之調整的閾值；確定該UE不再超過該閾值；以及啟動卸載至該WLAN。
  6. 如申請專利範圍第5項之UE，其中，接收該卸載指令包含感測eNB政策中之調整。
  7. 如申請專利範圍第5項之UE，其中，接收該卸載指令包含感測參考信號接收功率(RSRP)之閾值調整。
  8. 如申請專利範圍第5項之UE，其中，該電路進一步經配置以：從該eNB接收減少之WiFi存取點(AP)數量；以及掃描該減少之WiFi AP數量。
  9. 一種由演進的節點B(eNB)執行之方法，用於啟動從蜂巢式網路卸載使用者設備(UE)至WiFi網路，該蜂巢式網路經由演進的節點B(eNB)連接，該WiFi網路經由無線局域網路(WLAN)連接，該方法包含：從該UE接收電源偏好指示(PPI)信息以指示該UE 具有低電力；將包括該WLAN之基本服務集識別(BSSID)的卸載指令傳輸至該UE；以及啟動該UE連接至該WLAN，其中，傳輸該卸載指令包含調整參考信號接收功率(RSRP)之閾值。
  10. 如申請專利範圍第9項之方法，其中，傳輸該卸載指令包含調整至少一eNB政策。
  11. 如申請專利範圍第9項之方法，進一步包含：將參考信號接收功率(RSRP)之調整的閾值傳輸至該UE。
  12. 如申請專利範圍第9項之方法，進一步包含：將減少之WiFi存取點(AP)數量傳輸至該UE。
  13. 一種演進的節點B(eNB)，包含：電路，經組配以啟動從蜂巢式網路卸載使用者設備(UE)至WiFi網路，該蜂巢式網路經由演進的節點B(eNB)連接，該WiFi網路經由無線局域網路(WLAN)連接，該電路經配置以：從該UE接收電源偏好指示(PPI)信息以指示該UE具有低電力；將包括該WLAN之基本服務集識別(BSSID)的卸載指令傳輸至該UE；以及啟動該UE連接至該WLAN，其中，傳輸該卸載指令包含調整參考信號接收功率 (RSRP)之閾值。
  14. 如申請專利範圍第13項之eNB，其中，傳輸該卸載指令包含調整至少一eNB政策。
  15. 如申請專利範圍第13項之eNB，其中，該電路進一步經配置以：將參考信號接收功率(RSRP)之調整的閾值傳輸至該UE。
  16. 如申請專利範圍第13項之eNB，其中，該電路進一步經配置以：將減少之WiFi存取點(AP)數量傳輸至該UE。
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EP3005798A1 (en) 2016-04-13
HK1218823A1 (zh) 2017-03-10

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