TW201212560A - Method and wireless device of in-device interference mitigation - Google Patents
Method and wireless device of in-device interference mitigation Download PDFInfo
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- TW201212560A TW201212560A TW100128825A TW100128825A TW201212560A TW 201212560 A TW201212560 A TW 201212560A TW 100128825 A TW100128825 A TW 100128825A TW 100128825 A TW100128825 A TW 100128825A TW 201212560 A TW201212560 A TW 201212560A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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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
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
- H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
- H04B2001/485—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter inhibiting unwanted transmission
Description
201212560 六、發明說明: 【發明所屬之技術領域】 本申請依據35 U.S.C. §Π9要求如下優先權:編號為 61/373,142,申請日為 2010/8/12,名稱為“Method to Trigger In-Device Coexistence Interference Mitigation in Mobile Cellular Systems”的美國臨時申請;編號為61/373,151,申 請日為 2010/8/12,名稱為“Method of In-Device Interference Mitigation for Cellular, Bluetooth, WiFi and Satellite Systems Coexistence”的美國臨時申請;編號為 61/374,046,申請日為 2010/8/16,名稱為“Method of In-Device Interference Mitigation for Wireless Systems”的美 國臨時申請;編號為61/374,052,申請曰為2010/8/16,名 稱為“Method of In-Device Interference Avoidance for wireless Systems”的美國臨時申請。上述申請標的在此一起 作為參考。 本發明揭示的實施例係有關於無線網路通訊,尤其指 包含長期演進(Long Term Evolution,以下簡稱LTE)收 發機、無線保真(WiFi)收發機、藍芽(BT)收發機或全 球導航衛星系統(GNSS )接收機的多重無線電終端 (Multi-Radio Terminal,以下簡稱 mrt )。 【先前技術】 時至今日,無處不在的網路存取已基本實現。從網路 基礎設施方面來看,不同的網路属於不同的層級(例如, 分佈層、蜂巢層、熱點層、個人網路層、以及固定/線路層), 〇758-A36253TWF_MTKl-11-150 4 201212560 上述層級向使用者提供不共置準的覆蓋範圍與連接。因為 特定網路的覆蓋範圍不是在所有地點都可用,以及因為不 同網路可為了不同伺服進行優化’所以期望使用者裝置支 援在相同裝置平台上的多重無線電存取網路。隨著無線通 訊的需求不斷增大,無線通訊裝置例如蜂巢式電話、個人 數位助理(PDA)、智能手持裝置、筆記本電腦、平板電 腦等,正在越來越多地配置多重無線電收發機。一多重無 線電終端(MRT)可同時包含一長期演進(LTE)無線電 或先進長期演進(Long Term Evolution Advanced,LTE-A ) 無線電、一無線區域網路(Wireless Local Area Net,WLAN ) (例如WiFi)存取無線電、一藍芽(BT)無線電、以及_ 全球導航衛星系統(GNSS)無線電。 由於頻譜規定’不同的技術可以運作在重疊或者相鄰 的無線電頻譜中。例如,LTE/LTE-A的時分雙工(TDD) 模式通常運作在2.3GHz-2.4GHz頻段,WiFi通常運作在 2.400GHz-2.4835GHz頻段,以及BT通常運作在 2.402GHz-2.480GHz頻段。因此,共置於相同實體裝置上 的多重恶線電同時進行運作可能承受顯著的&退化 (degradation),上述顯著的退化包含由於重疊或相鄰 無線電頻譜造成的多重無線電之間的顯著的政 峨接近與無線齡當用於一第一無線;:二 貝料傳达與用於-第二無線電收發機㈣料接 : 相互重疊時’該第二無線電枚發機的資料接 丄 自於該第一無線電收發機的資料傳送的干擾叉來 第二無線電收發機的資料傳送可能承受:該 無線電接收 0758-A36253TWF_MTKI-l 1-150 201212560 機的資料接收的干擾。 第1圖(先前技術)係描述一LTE收發機與一共置的 WiFi/BT收發機以及GNSS接收機之間干擾的示意圖。在 第1圖的示例中’使珀者設備(User Equipment,UE) 10 係一 MRT,該MRT包含共置於相同裝置平台上的一 lTE 收發機11、一 GNSS接收機12、以及一 BT/WiFi收發機 13°LTE收發機π包含與一天線#1耦接的一 lTE基頻 (baseband,以下簡稱BB)模組與一 LTE射頻(RF)模 組。GNSS接收機η包含與一天線#2耦接的一 GNSS BB 模組與一 GNSS RF模組。BT/WiFi收發機13包含與一天 線#3耦接的一 BT/WiFiBB模組與一 BT/WiFiRF模組。當 LTE收發機11傳送無線電訊號時,。咖接收機12盥 BT/WiFl收發機13皆要承受來自LTE的共存干擾。同樣 地田BT/WiFi收發機4專送無線電訊號時,⑽π接收 機12與LTE收發機n皆要承受來自βτλ^的共存干 擾。使用者設備1G如何透過;^同的收發機同時與多重網路 進行通訊錢避免/減小共存干擾是—個具有挑戰性的問 題。 第2圖(先前技術)係描述來自兩個共置射頻收發機 的恶線電訊號的訊號功率示意圖。在第2圖的示例中,收 發機A與收發機B共置於相同裝置平台上(即裝置内)。 在頻域中收發機A (例如,在ISM通道】(CH1)的冒旧 ΤΧ)的傳送(TX)訊號非常接近收發機B的接收(RX) 訊號(例如,在頻帶4〇的LTERX)。收發機A的不完善 的TX濾波器與射頻設計導致的頻帶外, 0758-A36253TWF_MTKI-l 1-150 , 201212560 00B)輻射與雜散輻射(spurious emission)對於收發機B 是不可接受的。例如,即使在收發機A的TX訊號濾波後 (例如’在50dB抑制之後),收發機Α的ΤΧ訊號功率位 準仍然比收發機B的RX訊號的功率位準要高(例如在濾 波前A的TX訊號較B的RX訊號高60dB)。 除了不完善的TX濾波器與射頻設計,不完善的!〇( 濾波器與射頻設計也會引起不可接受的裝置内共存干擾。 例如’由於來自於另一裝置内收發機的未完全過濾掉的傳 送功率,多個射頻元件可能達到飽和,其結杲是導致低雜 訊放大器(Low Noise Amplifier,以下簡稱LNA)飽和並 且引起類比數位轉換器(Analog to Digital Converter,以下 簡稱ADC)無法正常工作。不管TX通道與RX通道之間 的頻率間隔是多少’上述問題確實存在。這是因為特定位 準的TX功率(例如’來自於一諧波τχ訊號)可耦接入 RX射頻(RF)的前端並且使它的LNA飽和。如果接收機 設計不考慮該共存干擾’該LNA完全不能適應並且直到該 共存干擾消除(例如經由關閉干擾源)前將一直保持飽和 狀態。 各種裝置内共存(In-Device Coexistence,以下簡稱 IDC)干擾消除的方法已經被提出。從lte許可頻帶移除 工業科學醫療用(Industrial Scientific and Medical,以下簡 稱ISM )頻帶訊號是一個可行的idc解決方案。例如, 裝置内BT模組可利用可適性跳頻(Adaptive Frequency Hopping,以下簡稱AFH)技術來調整跳頻範圍。裝置内 WiFi模組可選擇另一 WiFi存取點(Access Point,以下簡 0758-A36253TWF_MTKI-l Μ 50 7 201212560 稱AP),其中,該另一 WiFi存取點在遠離LTE頻帶的另 一頻率通道中運作。然而,除非BT模組可成功完成初始 連接建立,或者除非WiFi模組能從另外的WiFi AP中成功 掃描到WiFi信標(beacon),這些解決方案才能正常運作。 業内尋求其他解決方案用來保證BT/WiFi連接建立或者其 他重要的訊號傳輸(signaling)過程(procedure)。 【發明内容】 本發明提供一種共存干擾消除的方法。在一無線網路 中,一無線裝置係與多重無線電一並配置於相同裝置平台 上。該無線裝置亦具有與該多重共置的無線電模組進行通 訊的一控制實體。一第一無線電模組從該控制實體接收一 通知。該通知通知與該第一無線電模組共置的一第二無線 電模組的重要訊號傳輸狀態。接收該通知後,該第一無線 電模組由於共存干擾停止上行鏈路傳送。該第一無線電模 組不遵循經由一伺服基地台授權的上行鏈路傳送機會並且 向該基地台傳送一共存標識。在一段時間後,該第一無線 電模組接收一第二通知,該第二通知通知該第二無線電模 組之該重要訊號傳輸之一完成狀態。接收該第二通知後, 該第一無線電模組恢復上行鏈路傳送並且向該基地台傳送 一共存恢復標識。 在一實施例中,該第一無線電模組係一長期演進無線 電/全球互通微波存取無線電,並且該第二無線電模組係一 藍芽無線電/無線保真無線電。該重要訊號傳輸包含一查詢 或尋呼請求/響應訊號,該訊號在一初始連接建立或者其他 0758-A36253TWF MTK1-11-150 8 201212560 重要過程期間經由該藍芽無/ 與接收。該長期演進無線電/全球互通微波=線電來傳送 知該重要訊號傳輪的狀態後在該過程完::::線電在獲 自t停止上行鍵路傳送。經由自動拒絕段時間 =送機會,共存干擾被避免並且該。=上行鏈 為該基地台接收通知該長期演進拒絕行因 所以可防止在該長期演進拒絕的 、存㈣’ 或者觸發不必要的功能。 3内该基地台誤判
非以與優勢將在下面作詳細描述。該概要並 非界疋_明為目的。本發明由權利要求範圍所界L 【實施方式】 附圖係描 關於本發明的多個實施例將作為詳細參考 述本發明的實施例所作。 第3圖係依據—新穎性方面描述在-無線通訊系統3 0 中具有多重無線電收發機的一使用者設備UE 31。無線通 =系統30包含一使用者設備UE 31、一祠服基地台(例如, 演進型節點B (ev〇lVed Nc)deB)漏32、—無線保真存取 ,^iFi A?33、—藍芽裝置BT34、以及一全球定位系統 衛星裝置GPS 35 °無線通訊系統30經由不同的無線電存 取技術為UE 31提供各種網路存取伺服。例如,eNB %提 t、基於正父分頻多工存取(〇FDMA-based)的蜂巢式無線 電網路(例如’第三代合作夥伴計晝(3Gpp)LT]E或ltE_a 系統)存取,WiFi AP 33在WLAN存取中提供區域範圍, 〇758-A36253TWF_MTKM]-150 9 201212560 ΒΤ 34提供短距誠人網, 取作為全球導航衛星系統(gNs 。以35如供全球存 種無線電網路,UE 31係與多# &的—部分。對於存取各 置平台(即裝置内)上的’多電共存/共置於相同裝 由於頻譜規定,不同的無線^終端⑽丁)。 相鄰的無線電頻譜中運作。如第园子取技術可在重疊或者 透過無線電訊號36進行通訊,υ所不’UE3】與eNB32 線電訊號37通訊,UE 31 * Βτ /與懸AP 33透過無 訊,並且從一收無線電二 =雷頻帶4〇 ’無線電訊號37属於:通道之-,: 及播線電訊號38属於79個较贫、s、、 以 電訊號的頻率落人從2.3GHZ至之—。所有上述無線 致裝置彼此之間較大的裝置内^5fZ的頻率範圍,可導 夏門共存干擾(IDC)。在2 4GHz 電頻帶周圍’上述問題更為嚴重。在一新颖性方 面中,UE 3 ]實施自動LTE拒絕(和―)以保證bt/職 初始連接建立以及其他重要錢傳輪過程,這樣裝置内 BT/WiFi無線電可適用各種耽干擾消除解決方案。顶的 自動LTE拒!巴解決方案需要内部裝置的協作,例如與证 内多重無線電進行通訊的中央控制實體。 第4圖係具有中央控制實體以方便UE自動LTE拒絕 的無線裝置41的簡略方框圖。無線裝置4〗包含一記憶體 44、具有一中央控制實體46的一處理器45、一 LTE/WiMAX 收發機47、一 WiFi收發機48、一 BT收發機49以及一匯 流排105。在第8圖的例子中,中央控制實體46係實體上 安置於處理器45内的邏輯實體,處理器45亦用於裝置41 0758-A36253TWF__MTKl-11-150 10 201212560 的裝置應用過程。可替換地,中央控制實體46係安置於處 理器上的邏輯實體,其中,該處理器係實體上位於 LTE/WiMAX收發機、WiFi收發機或BT收發機中。中央 控制實體46連接至裝置41的各種收發機,並且經由匯流 排105與各種收發機進行通訊。例如,bt收發機49傳送 BT訊號資訊與/或BT訊務(traffic)與排程(scheduiing) 資訊至中央控制實體46(例如,虛線ι〇1所示)。基於已 接收BT資讯,中央控制貫體46確定控制資訊並且傳送該 控制資訊至LTE/WiMAX收發機47(例如,虛線丨〇2所示)。 在一個貝把例中,BT收發機49與對等(peer)的bt裝置 43實施初始連接建立(例如,虛線1〇3所示>LTE/WiMAX 收發機47透過控制貫體46獲知BT運作並且實施自動LTE 拒絕來保證初始連接建立過程。LTE/WiMAX收發機47進 步與其伺服基地台eNB 42進行通訊以指示一段時間内 Tx的不可用狀態(例如,如虛線1〇4所示),從而防止eNB 的錯誤報警。 第5圖描述在無線網路5〇中為了避免IDC干擾的uE 自動LTE拒絕解決方案的實施例。無線網路5〇包含一基 地台eNB 51、一 BT裝置52以及一使用者設備UE 53。UE )3包含一 LTE/WiMAX無線電模組(例如收發機)54、一 BT無線電模組(例如收發機)55以及一控制實體%。當 LTE/WiMAX收發機54傳送的LTE/WiMAX訊號靠近ISM 頻帶時’OOB輻射可導致對bt收發機55的不可接受的干 擾位準,其中,上述BT收發機位於同一裝置平台上。在 BT初始連接建立期間,Βτ無線電模組55將發送/接收查 0758-A36253TWF_MTKI-11-150 201212560 詢(inquiry)或尋呼(paging)訊號(例如重要(critical) 訊號)至對等BT裝置52。該訊號將通過所有RF通道以 跳頻方式被傳送。共存干擾可導致共置的BT收發機55不 能接收查詢/尋呼訊號或來自對等BT裝置52的響應,特別 地當上述訊號透過接近ISM頻帶邊緣的RF通道進行傳送 時。 如第5圖下半部分所示,無線電訊號57係一重要訊 號(例如’查詢或尋呼訊號),該重要訊號係從BT裝置 52傳送,並且為了初始連接建立由bt無線電模組55接 收。同時’經由LTE/WiMAX無線電模組54,無線電訊號 5 8在非常接近該IS Μ頻帶邊緣的頻率位置進行傳送。在初 始連接建立階段ΒΤ訊號跳頻至ISM頻帶邊緣係不可避免 的。當該ΒΤ訊號跳頻至ISM頻帶邊緣時,重要ΒΤ訊號 57會受LTE/WiMAX訊號58的干擾(如區域59所示), 上述干擾可導致初始連接建立失敗。如果BT不能完成初 始連接建立’那麼BT不能實施其他的干擾避免機制,例 如進一步的交涉(negotiation )以減小跳頻範圍,其中,該 跳頻範圍用於移動BT訊號遠離LTE/WiMAX訊號(例如, 經由存在的AFH機制)。因此,除非bt能成功地完成初 始連接建立’否則整個干擾避免機制將不能正常工作。 在一新穎性方面,UE 53實施自動LTE拒絕以保證 BT (或WiFi、GNSS)初始連接建立過程或其他重要訊號 傳輸。為了方便UE自動LTE拒絕,配置於UE 53中的控 制實體56能獲知BT/WiFi/GNSS運作狀態,以及如果 BT/WiFi/GNSS正在實施初始連接建立過程或其他重要訊 0758-A36253TWF_lviTKI-ll-150 12 201212560 號傳輸’控制貫體56則指示LTE收發機停止傳送訊號。 如第5圖上半部所示,首先,控制實體獲知BT無線電模 組即將實施初始連接建立(例如,查詢或尋呼過程)(步 驟1 )。然後’控制貫體將資訊通知LTE/WiMAX無線電 模組並且指示LTE/WiMAX在一段時間内不傳送訊號(步 驟2 )。基於來自於控制實體的指示,LTE/WiMAX無線電 模組不再遵循(follow)由eNB51授權(grant)的上行鍵 路(uplink,以下簡稱UL)傳送機會以及在一段時間内停 止上行鏈路傳送(例如,LTE傳送機會的UE自動拒絕) (步驟3)。最後,該LTE/WiMAX無線電模組亦傳送— 共存標識至eNB 51以通知eNB 51上述UE將故音略過上 行鏈路傳送以防止eNB 51誤判(例如,現合式自動重傳請 求(HARQ)失敗)(步驟4)。參考第s圖的下半部,由 於該LTE拒絕機制,BT Rx訊號57將不受LTE/WiMAX Τχ 訊號5 8的干擾(例如,訊號5 8係虛線所示)。因此,在 一段時間内來自於LTE/WiMAX的共存干擾將得以避免從 而幫助BT完成初始連接建立。 第6圖描述在無線網路60中為了避免me干擾的UE 自動LTE拒絕解決方案的更詳細流程圖。無線網路6〇包 含一 eNB 6卜一 BT裝置62以及一 UE63。UE63係一多 重無線電終端,其包含一 LTE/WiMAX無線電64、一 BT 無線電65以及一控制實體66。在步驟6〇1中,BT無線電 65將自身的初始連接建立或其他的重要過程的狀態通知控 制實體66。在步驟602中’控制實體66轉發(forward) 上述通知至LTE/WiMAX無線電64。控制實體66亦可指 0758-A36253TWF ΜΤΚ1-11-]50 201212560 示LTE/WiMAX無線電64在一段時間内不傳送訊號。基於 已接收通知或指示,UE 63停止上行鏈路傳送(UL TX)並 且略過由eNB 61授權的上行鏈路傳送機會(步驟604)。 可選地,在步驟603中UE 63也向eNB 61發送一共存標 識。該共存標識通知eNB 61,UE 63由於共存干擾即將在 一段時間内略過上行鏈路傳送。作為上述共存標識的回 應,eNB 61在異常狀態中配置某些上行鏈路測量功能。上 行鏈路測量功能可包含HARQ功能與上行鏈路訊號品質測 量功能。例如,eNB 61 ;東結或重設HARQ重傳記數器或其 他相關的記數器(步驟605 )。在另一個例子中,eNB 61 略過由UE 63傳送的上行鏈路訊號品質測量結果,並且不 觸發基於上行鏈路訊號品質測量結果的其他功能(例如, 共存干擾消除方案)(步驟606)。配置那些上行鏈路測 量功能至異常狀態可在被UE 63拒絕LTE的特定時間内防 止eNB 61誤判或觸發不必要的功能。
對於BT無線電65,在步驟601發送通知後,在步驟 607中BT無線電65與其對等BT裝置62開始初始連接建 立過程。在初始連接建立期間,BT裝置62可發送查詢或 尋呼訊號,同時BT無線電65回應查詢或尋呼訊號。在成 功完成初始連接建立之後,在步驟608中,BT 65與BT 62 可繼續實施AFH交涉。在AFH過程期間,對等BT裝置進 一步與BT無線電65交涉以減小跳頻範圍,這樣BT訊號 進一步遠離LTE/WiMAX訊號以避免共存干擾。經由具有 來自於LTE/WiMAX —側的保護,現有的BT初始連接建 立與AFH過程可以不加修改地直接被重用以避免來自BT 0758-A36253TWF MTKI-11-150 14 201212560 一侧的IDC干擾。 在初始連接建立與AFH過程完成後,BT無線電65 向控制實體66通知上述初始連接建立或其他重要過程的 完成狀態(步驟609)。在步驟610中,控制實體66轉發 該通知至LTE/WiMAX無線電64。基於已接收通知,在步 驟612中UE 63恢復上行鏈路傳送。可選地,在步驟611 中UE63也向eNB61發送一共存恢復標識。該共存恢復標 識通知eNB 61,UE 63即將恢復正常的上行鏈路傳送。作 為共存恢復標識的回應,eNB 61配置某些上行鏈路測量功
能重回正常狀態。例如,在步驟613中eNB 61恢復HARQ 重傳記數器或其他相關的記數器。在另一例子中,在步驟 614中eNB 61恢復上行鏈路訊號品質測量功能。在恢復上 行鍵路訊號品質測量功能之後,eNB 61可觸發干擾消除機 制’該干擾消除機制基於從UE 63報告的上行鏈路訊號測 置結果。 第7圖描述在BT初始連接建立後可適性跳頻的一個 例子。當在連接模式中時,BT接收機承受的源自其他裝置 内恶線技術的干擾將引起吞。土量減小(throughput reduction)或者鏈路(link)失敗。為了消除IDC干擾, BT裝置可通過可適性跳頻過程在BT無線電與其他裝置内 無線電之間創建—更大的保護頻帶。一般來說,如果BT 裝置承受的干擾越強烈,那麼受限制或者拒絕資料傳送的 頻率通道越多。另—方面,如果承受的干擾越弱,那麼受 限制或者拒絕資料傳送的頻率通道越少。 為了滿足目前的藍芽技術規範,跳頻集(set)對於 〇758-A36253TWF_MTKl-l 1-15〇 15 201212560
Tx與Rx必須具有相同的帶寬。目此在對於丁χ < Rx最壞 的情況下,仍可透過跳鮮寬減小針㈣除機制,達成 共存干擾消除的目標。然而,因為在Τχ與Rx之間的共存 干擾很可能不相同,所以如果搿於丁乂與Rx的跳頻帶寬可 設置為不同值以最大化分集(diversity)肖益將是非常有益 的。如第7圖所示’在-新賴性方面,如果裝置内BT接 收機承文的干擾越強烈,那麼從Rx的跳頻範圍中將排除越 夕的頻率通道。另-方面,如果裝置内BT傳送機向其他 裝置内無線電引入越弱的干擾,從Τχ的跳頻範圍中將排除 越少的頻率通道。 、為實現AFH過程,通道分類可被用作Βτ裝置的指示 以排除與其他裝置内無線電應用頻率通道接近的頻率通 道=如,對於一特定通道設置通道分類至“壞(bad),,對 於主藍芽t置係-有用的指示’該指示表明特定通道應從 AFH列表巾排除。另外,可創建—新通道分㈣指示me 干擾例如’可創建名為、(ugly),,的通道分類以指示 特定通道具有不可接受的耽干擾。基於上述資訊,特定 通道應該從AFH列表中移除以消除IDC干擾。 第8圖描述在Βτ初始連接建立後的用於IDC干擾消 功率官理解決方案。除了應用afh過程,訂襄置也 可貝%功率控制方法以進—步消除mc干擾。—般地,如 果BT裝置向其他$置内無線電引人干擾,然後上述解決 方案ir'降低BT傳送機在裝置内接收機附近頻率上的功率 ,準°玄功率位準的降低基於一比例因子,該比例因子 賴幾個因素。首先,該比_子取決於裝置内無線電^ 〇758-A36253TWF^MTK]-] |.,5〇 201212560 第ί率=°第二’該比例因子取決於傳送失敗的次數。 結;。二=子取決於裝置内無線電間通訊的干擾測量 道,該功:位越靠近_頻帶邊緣的頻率通 位準即可η率位準的降低越少。另外,該功率 頻率範圍—旦的減小(如圖示81所示)亦可如一特定 、圍内的斜坡減小(如圖示82所示)。該特定頻束狄 圍與功率降低的斜率可婉由υρ —二/特疋頻率範 經由裝置内I㈣八+ 。又6十中的參數確定,亦可 ^ …、線電刀旱的動態干擾測量來確定。 干擾面’對於UE為了避免IDC ^ . 送機會的UE自動拒絕方法流程圖。在— 平台上Μ 4重f線電裝配於同一裝置 體…— 知。該無線裝置亦具有-控制實 實體㈣與多重無料额通訊以及協 、s 該控織體接收—通知(步驟9υ。 第,二ί::線電模組的重要訊號傳輸狀態,其中, ^無線仏組與第—無線電模組共置。例如,重要卿 輸二接建立過財傳送的查詢或尋呼訊。 地台授權的上行鏈路傳送機會。可選:遵第循_任= 服基 共存標識。在第二無線電 接建立或其他里要過程後, 運 (步驟93)。該第二_ /線電%組接收第二通知 輸的完成狀態。接物無重要訊號傳 乐一通知後,第一無線電模組恢復 〇75S-A36253TWF_MTKi-1 ] - ] 50 】? 201212560 上行鍵路傳送(㈣94)。或者,第一無線電模組向該_ 傳送一共存恢復標識。 第1〇圖仏依據—新穎性方面,對於基地台為了避免 ID=干擾的LTE傳送機會的UE自動拒絕方法流程圖。在 -热線網路巾’恶線裝置為LTE/wiMAX無線電與其他職 頻段無:電裝配於同—裝置平台上的多重無線電終端。由 -基地台(eNB)伺服的無線裝置用於蜂巢式無線電網路 存取。該和Ί服基地台從無線裝置的LTE/WiMAX無線電模 組接收:共存_ (步驟ui)。該共存標識通知基地台: 热線裝置將停止上行鏈路LTE/wiMAX傳送並且由於來自 ISM頻帶無線電的干擾將忽略該基地台授權的上行鏈路傳 送機會。作為該共存標識的回應,基地台配置上行鏈路測 $功能至異常狀態(步驟112)。例如’該基地台可束結 或重設HARQ重傳記數器或者停止UL最小化路測 (Minimization Of Driving Test,MDT)記錄(log)。該 基地台亦可略過上行鏈路訊號品質測量結果並且停止觸發 基於該測量結果的其他功能。 接著,該基地台從無線裝置的LTE/WiMAX無線電模 組接收-共存恢復標識(步驟α 1Π)。該共存恢復標識通 知該基地台’無線裝置將恢復上行鏈路LTE/wiMAX傳 送。作為該共存恢復標識的回應,該基地台 配置上行鏈路 測量功能重回正常狀態(步驟i 14 )。例如’該基地台恢 復HAHQ 恢賴發基於上行鏈路訊號品質 測量結果的其他干擾消除功能。 在另-貫施例中’ ϋΕ不傳送共存恢復標識,並且基 0758-A36253TWF^MTKl-11-150 201212560 地台不接收共存恢復標識。相反地,在一特定的時間延遲 後基地台簡單地將上行鏈路測量功能設置回正常狀態。從 UE傳送的共存標識包含該特定的時間延遲。該特定的時間 延遲可為估計值。例如,如果初始BT連接建立過程通常 需要大約500ms,那麼該基地台假設UE停止大約500ms 的上行鏈路傳送以保護初始BT連接建立免受共存干擾影 響。在該基地台接收該共存標識後,在未接收到該共存恢 復標識的5 00ms後該基地台將上行键路測量功能設置回正 常狀態。 雖然為了說明目的描述本發明特定的實施例,然本發 明並不褐限於此。例如,雖然以一 LTE/LTE-A或者wiMAX 手機通訊系統作為例子來描述本發明,但本發明可同樣地 應用於其他手機通訊系統’例如分時同步分碼多工存取 (TD-SCDMA )系統。因此’各種對該描述實施例各特徵 的修改、調整、以及組合係被看作未超出本發明申請專利 範圍。 【圖式簡單說明】 附圖中,相同符號表示相似組件,用以描述本發明的 實施例。 第1圖(先前技術)係描述一 LTE收發機與一共置的 WiFi/BT收發機以及GNSS接收機之間干擾的示音圖。 第2圖(先前技術)係描述來自於兩個共置於相同穿 置平台的射頻收發機的無線電訊號的訊號功率示音圖。、 第3圖係依據一新賴性方面描述在一無線通^系統中 0758-A36253TWF_MTKI-l Μ 50 19 201212560 具有多重無線電收發機的使用者設備。 第4圖係具有中央控制實體的無線裝置的簡略方框 圖。 第5圖係依據一新穎性方面描述為了避免IDC干擾的 UE自動解決方案的一實施例。 第6圖係描述為避免IDC干擾的UE自動LTE拒絕的 詳細流程圖。 第7圖係描述在BT初始連接建立後可適性跳頻。 第8圖係描述在BT初始連接建立後的功率管理解決 方案。 第9圖係依據一新穎性方面對於UE為了避免IDC干 擾的自動LTE拒絕方法流程圖。 第10圖係依據一新穎性方面對於eNB為了避免IDC 干擾的自動LTE拒絕方法流程圖。 【主要元件符號說明】 10、31、53、63 :使用者設備; 11 : LTE收發機; 12 : GNSS接收機; 13 : BT/WiFi 收發機; #卜#2、#3 :天線; 32、51 、61 :飼月艮基地台; 33 : WiFi AP ; 34、43、52、62 :藍芽裝置; 3 0 :無線通訊系統; 0758-A36253TWF MTK1-11-150 20 201212560 35 : GPS 裝置; 36、37、38、39 :無線電訊號; 41 :無線裝置; 42 :伺服基地台; 44 :記憶體; 45 :處理器; 46、56、66 :控制實體; 47 : LTE/WiMAX 收發機; 48 : WiFi收發機; 49 : BT收發機; 101、102、103、104 :虛線; 105 :匯流排; 50、60 :無線網路; 54 : LTE/WiMAX無線電模組; 55 : BT無線電模組; 57 :重要BT訊號; 58 : LTE/WiMAX 訊號; 59 ·區域, 64 : LTE/WiMAX 無線電; 65 : BT無線電; 601 〜614、91 〜94、111 〜114 :步驟 81、82 :圖示。 0758-A36253TWF MTKI-11-150 21
Claims (1)
- 201212560 七、申請專利範圍: ]·一種方法,包含: 一 (a)經由一第—無線電模組接收來自於一控制實體的 一該控制實體通知與該第-無線電模組共置的-第 一热線電模組的—重要訊號傳輸狀態;以及 甘/b)在段時間内停止上行鏈路傳送以及忽略經由 土土台授權的上行鏈路傳送機會。 2·如申請專利範圍第】項所述之方法,進一步包含: 基地台⑷將來自無料模組的-共存標識傳送至該 識係==範圍第2項所述之方法,其中該共存標 .…、線電貧源控制訊號傳輸資訊或一媒體存取控 制乜制元件進行傳送。 4.如申請專利範圍第1項所述之方法,進-步包含: 、s A 來自控制實體的—第二通知,其中該控制實體 弟二無線電模組的該重要訊號傳輸的—完成狀態: 以及 恢復上行鏈路傳送。 '.如申請專利範圍第4項所述之方法,進—步包含: 兮^來自°玄第一無線電模組的一共存恢復標識傳送至 邊暴地台。 線電=\申料利翻第1賴述之方法,其巾該第二無 始二;=分,及其中該重要訊號傳輪係-初 如申°月專利範圍® 1項所述之方法,其中該第二益 * #、、、 0758-A36253TWF_MTKI-li-i5〇 201212560 線電核組係一藍芽模組,以及其中該重 適性跳頻建立過程的一部分。° 訊5虎傳輸係一可 续雷r如申明專利1巳圍第1項所述之方法,並中談第二a 次電挺組基於_頻率間距調整 $ = -然 頻率間距為從該第二無線電模組的至;:’該 線電模組的-頻率通道的頻率間距。頻革通運至該弟一無 線』項:…法,其中該第二無 1〇.一種方法=.轉-料功率位準。 讀盆(丄、二由一基地台接收來自一無線裝置的-共存# 的上㈣通知該無線裝置忽略由該基地台授權: 的上仃鏈路傳达機會並且停止上行鍵路傳送, ·以及櫂 能至異為該共存標識的回應’配置上行鍵路測量功 n.如申請專利範圍第10項所述之方法,進一步包含. 收來自該無線裂置的一共存恢復標識,其中該 土 口兄置邊上行鏈路測量功能回到正常狀熊。 以 12. 如申請專利範圍第1G項所述之方法: ^量功能包含混合式自動重傳請求功能,以及:中;丁 傳記數器。 自動重傳請求重 13. 如申請專利範圍第1〇項所述之方法 鏈路測量功能包含上行鏈路職測量魏,以及㈠7 地台忽略步驟⑴中的上行鏈路測量結果。〃"基 K如申請專利範圍第10項所述之方法,其中該上行 0758-A36253TWF_MTK3^i]-150 23 201212560 键路測量功能包令异f A 止記錄步驟(b)中的為P測功能,以及其中該基地台停 15·如申請專2^小化路測的上行鍵路測量結果。 T明寻利乾圍第1〇項 才示識係經由—無線f | ' /其中該共存 控制控制元件進行^ /原控制訊號傳輪資訊或-媒體存取 I6. —種無線裝置,包含: 一第一無線電模組; 及—第二無線電模組’其與該第一無線電模組共置:以 ,制實體’其中該控制實體用於 一热線電模組,其中該通知通知匕通知至該第 無線電模組的一重 人 热線电模組該第二 甬略由-基地台授權的上行鏈路 及、;: 為该通知的回應停止上行鏈路傳送。 及作 第-盔專利乾圍第16項所叙無線裝置,其中兮 ^線電用於傳送—共存標識至該基地台其中“ 共存標識&無線裝置,其中該 存取控制控制元件進行傳送。 ’ u |汛或一媒體 丄9.如申請專利範圍第16 控制實體發送一第二通:線裝置’其中該 二無線電模組㈣重 ·然,泉4組,通知該第 作為該第1 傳輸的一完成狀態,以及其中 傳送。一、°的回應,該第-無線電模組恢復上行鏈路 2〇.如申請專利範圍第19項所述之無線裝置 〇^8-A36253TWF_MTk,|M5〇 ^ 、甲5玄 201212560 第一 第二卑線電模:^_乾圍第】6項所述之無線裝置,其甲該 係一初始連接 ====分r及其中該重要訊號傳輸 22.如申請專利範圍第16項所述之盈 第二無線電模域-藍芽模組,以及1㈣重 係-可適性跳頻訊號傳輸過程的一部分。° 7"傳輸 第二線裝置,該 於從該第二無線電模組的—頻率通道至準基 的一頻率通道的一頻率間距。 人‘,、、線電模組 申料難圍第16項所述之無線裝置, =電模組基於一定次數的傳送失敗,調整-傳送:: 〇758-A36253TWF__MTKi-l 1-150 25
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