TWI419503B - Method of handling measurement reporting and related communication device - Google Patents
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Description
本發明關於一種用於一無線通訊系統之方法及其通訊裝置,尤指一種用於一無線通訊系統用來處理量測回報程序的方法及相關通訊裝置。The present invention relates to a method for a wireless communication system and a communication device thereof, and more particularly to a method and a related communication device for processing a measurement report program in a wireless communication system.
通用移動通訊系統(Universal Mobile Telecommunications System,UMTS)為第三代行動通訊技術。通用陸地全球無線存取網路(Universal Terrestrial Radio Access Network,UTRAN)包含一核心網路,其由複數個基地台(Node Bs)及複數個基地台控制器(或稱為無線網路控制器(radio network controllers,RNCs)組成。The Universal Mobile Telecommunications System (UMTS) is the third generation of mobile communication technology. The Universal Terrestrial Radio Access Network (UTRAN) includes a core network consisting of a plurality of base stations (Node Bs) and a plurality of base station controllers (or wireless network controllers). Radio network controllers (RNCs).
為維持通訊品質,用戶端會進行一量測程序,以量測無線訊號的強度或訊噪比(Signal Noise Ratio)。在用戶端進行量測程序之前,通用陸地全球無線存取網路首先須傳送一量測控制訊息(measurement control message)至一用戶端(user equipment)。量測控制訊息包含有“量測型態(measurement type)”的欄位,其定義了通用陸地全球無線存取網路要求用戶端所進行的量測型態(如,內部頻帶量測(intra-frequency measurement))。In order to maintain communication quality, the UE performs a measurement procedure to measure the strength of the wireless signal or the Signal Noise Ratio. Before the user conducts the measurement procedure, the universal terrestrial global wireless access network first transmits a measurement control message to a user equipment. The measurement control message includes a "measurement type" field that defines the measurement type that the universal terrestrial global radio access network requires at the user end (eg, internal band measurement (intra) -frequency measurement)).
另一方面,用戶端的量測結果係藉由量測回報訊息(measurement report message)傳送至通用陸地全球無線存取網路。值得注意的是,透過量測控制訊息中的”量測回報標準”欄位,通用陸地全球無線存取網路指示用戶端哪些事件(event)會觸發量測回報。舉例來說,當用戶端量測到不在活動集(active set)中之一細胞的一主要共用領航通道(common pilot channel,CPICH)上的訊號強度或訊噪比優於在活動集中之一細胞的一主要共用領航通道時,用戶端會回報量測結果。上述情況定義為1c類型事件且1c類型事件的觸發條件需符合活動集中的細胞數量大於或等於一細胞取代臨界值(replacement activation threshold),其中細胞取代臨界值為在活動集中允許細胞的最小數量,其可透過上述之量測控制訊息來設定。詳細說明可參考3GPP TS 25.331,在此不再贅述。值得注意的是,1c類型事件會導致訊號強度或訊噪比不佳的細胞被取代。On the other hand, the measurement results of the client are transmitted to the universal terrestrial global wireless access network by means of a measurement report message. It is worth noting that through the "Measurement Return Standard" field in the measurement control message, the Universal Terrestrial Global Radio Access Network indicates which events the user will trigger the measurement return. For example, when the UE measures the signal strength or signal-to-noise ratio on a major common pilot channel (CPICH) of one of the cells that is not in the active set, it is better than one cell in the active set. When a primary shared pilot channel is used, the client will report the measurement results. The above situation is defined as a type 1c event and the trigger condition of the type 1c event is such that the number of cells in the active set is greater than or equal to a replacement activation threshold, wherein the cell replacement threshold is the minimum number of cells allowed in the active set, It can be set by the above measurement control message. For detailed description, refer to 3GPP TS 25.331, and details are not described herein again. It is worth noting that 1c type events can cause cells with poor signal strength or poor signal to noise ratio to be replaced.
值得注意的是,在用戶端傳送量測回報訊息後,若通用陸地全球無線存取網路未更新活動集(如未傳送活動集更新訊息或用戶端未收到尚未收到活動集更新訊息)時,用戶端在一預設時間間隔(在本文中稱為觸發時間(time-to trigger,TTT))後會傳送新的量測回報訊息。另一方面,用戶端會根據一週期性回報時間間隔(Periodic Reporting Interval),週期性的傳送量測回報訊息至網路端,舉例來說,網路端設定週期性回報時間間隔為5秒,因此用戶端會每隔5秒傳送回測回報訊息至網路端。It is worth noting that after the user transmits the measurement report message, if the universal terrestrial global wireless access network does not update the activity set (if the activity set update message is not transmitted or the client does not receive the activity set update message) At the same time, the UE transmits a new measurement report message after a preset time interval (referred to herein as a time-to-trace (TTT)). On the other hand, the UE periodically transmits the measurement report message to the network according to a periodic report interval (Periodic Reporting Interval). For example, the network sets the periodic report interval to 5 seconds. Therefore, the client will send back the test report message to the network every 5 seconds.
然而,在目前3GPP通訊協定的規範中,當網路端(如通用陸地全球無線存取網路)接收從用戶端傳送且透過1c類型事件所觸發的量測回報訊息時,網路端可能會指示用戶端從活動集中移除訊號強度或訊噪比良好的細胞,造成通話中斷(call drop),並影響使用者的使用經驗,其詳細原因說明如下。However, in the current 3GPP protocol specification, when the network (such as the universal terrestrial global wireless access network) receives the measurement report message transmitted from the client and triggered by the 1c type event, the network may Instructs the client to remove cells with good signal strength or signal-to-noise ratio from the active set, causing call drop and affecting the user's experience. The detailed reasons are as follows.
請參考第1圖,第1圖為習知一量測回報程序的示意圖。在第1圖中,用戶端傳送第一量測回報訊息(由1c類型事件所觸發)至網路端,以觸發一細胞取代程序。該第一量測回報訊息通知網路端將細胞B或C以細胞D取代。假設細胞C為活動集ASET中訊號品質最弱的細胞,因此,用戶端的意圖係由細胞D來取代細胞C。Please refer to Figure 1, which is a schematic diagram of a conventional measurement procedure. In Figure 1, the UE transmits a first measurement report message (triggered by a 1c type event) to the network to trigger a cell replacement procedure. The first measurement report message informs the network that the cell B or C is replaced by the cell D. It is assumed that cell C is the cell with the weakest signal quality in the active set ASET. Therefore, the intention of the user terminal is to replace cell C by cell D.
根據目前3GPP通訊協定的規範,當網路端處理第一量測回報訊息,但用來回應第一量測回報訊息的一活動集更新訊息尚未傳送至用戶端時,舉例來說,網路端並不會對所有的量測回報訊息作回應(例如,網路端認為目前此細胞的通訊品質尚可並不需進行細胞取代的動作),因此,在觸發時間/週期性回報時間間隔後,用戶端會主動傳送一第二量測回報訊息(由1c類型事件所觸發)至網路端,以觸發另一細胞取代程序,其中第二量測回報訊息通知網路端將細胞B或C以細胞E取代。According to the current 3GPP communication protocol specification, when the network side processes the first measurement report message, but an activity set update message for responding to the first measurement report message has not been transmitted to the user end, for example, the network side It does not respond to all measurement feedback messages (for example, the network believes that the current communication quality of this cell does not require cell replacement), so after the trigger time/periodic return interval, The client will actively transmit a second measurement report message (triggered by the 1c type event) to the network to trigger another cell replacement procedure, wherein the second measurement report message informs the network side that the cell B or C is Cell E is replaced.
值得注意的是,在網路端傳送用來回應第一個量測回報訊息的活動集更新訊息、但用戶端尚未收到此活動集更新訊息之前,用戶端可能已傳送第二個量測回報訊息(其原因如上述)至網路端。由於網路端已更新活動集ASET中的細胞資訊,即網路端認定細胞C已被細胞D所取代,因此當網路端處理第二量測回報訊息(指示以細胞E取代細胞B或C)時,細胞C已經不存在於網路端的活動集ASET中,因此網路端可能將活動集ASET中的細胞B以細胞E來取代,因而造成通訊品質較佳的細胞(如細胞B)反而被取代。簡單來說,由於網路端已經更新活動集ASET中的細胞資訊,因此第二個量測回報訊息會造成網路端不必要的移除/取代細胞(如細胞B),並影響通話服務/品質。此外,細胞D和細胞E可能僅在短期間訊號品質/強度良好,因此,當用戶端離開細胞A的服務範圍時,用戶端與活動集ASET中的細胞A、D、E的無線鍵結都將無法繼續維持,因而造成通話中斷。It is worth noting that the client may have transmitted the second measurement report before transmitting the activity set update message in response to the first measurement report message but the client has not received the activity set update message. The message (the reason is as above) to the network. Since the network has updated the cell information in the active set ASET, that is, the network side determines that the cell C has been replaced by the cell D, when the network side processes the second measurement report message (indicating that the cell E is substituted for the cell B or C) When the cell C is not present in the active set ASET on the network side, the network may replace the cell B in the active set ASET with the cell E, thus causing cells with better communication quality (such as cell B) instead. Was replaced. In short, since the network has updated the cell information in the active set ASET, the second measurement report message will cause unnecessary removal/replacement of cells (such as cell B) on the network side, and affect the call service/ quality. In addition, cell D and cell E may only have good signal quality/intensity in a short period of time. Therefore, when the user leaves the service range of cell A, the wireless connection of the cell A, D, and E in the active set ASET is both It will not be able to continue, resulting in a disruption of the call.
由上述可知,網路端會面臨二個量測回報訊息的競爭情況(race condition),如第一個量測回報訊息指示細胞B或C以細胞D來取代,而第二個量測回報訊息卻指示細胞B或C以細胞E來取代,在此情況下,由於細胞C可能已被細胞D取代,因此細胞取代程序可能會造成通訊中斷。另一方面,網路端錯誤假設量測回報訊息內所指示用來進行細胞取代的細胞都存在於活動集中,然而,由於網路端已更新過活動集,因此量測回報訊息內所指示的細胞可能不存在於活動集中,因而造成通訊中斷。As can be seen from the above, the network will face two race conditions for measuring the return message, such as the first measurement report message indicating that cell B or C is replaced by cell D, and the second measurement report message. It indicates that cell B or C is replaced by cell E. In this case, since cell C may have been replaced by cell D, the cell replacement program may cause communication disruption. On the other hand, the network side error assumes that the cells indicated in the measurement report message for cell replacement are present in the active set. However, since the network has updated the active set, the measurement report indicates Cells may not be present in the active set, causing communication disruptions.
因此,本發明提供用於一無線通訊系統用來處理量測回報程序的方法及相關通訊裝置,以降低通話中斷的機率。Accordingly, the present invention provides a method and associated communication device for a wireless communication system for processing a measurement reward program to reduce the probability of a call interruption.
本發明揭呫一種處理量測回報程序的方法,用於一無線通訊系統的一網路端,該網路端包含一活動集,用來記錄可提供一服務給該無線通訊系統的一行動裝置的細胞的細胞識別,該方法包含有:接收從該行動裝置所傳送的一量測回報訊息,其中該量測回報訊息用來通知一細胞取代程序,並包含有一第一細胞的第一細胞識別;判斷該第一細胞的第一細胞識別是否存在於該活動集,以及該活動集記錄的細胞識別數量是否超過一預設數量,用以產生一判斷結果;以及根據該判斷結果,進行該細胞取代程序。The present invention discloses a method for processing a measurement reporting program for a network of a wireless communication system, the network comprising an activity set for recording a mobile device capable of providing a service to the wireless communication system Cell identification of the cell, the method comprising: receiving a measurement report message transmitted from the mobile device, wherein the measurement report message is used to notify a cell replacement program and includes a first cell identification of the first cell Determining whether the first cell identification of the first cell is present in the active set, and whether the number of cell identifications recorded in the active set exceeds a predetermined number for generating a determination result; and performing the cell according to the determination result Replace the program.
本發明另揭露一種用於一無線通訊系統之一網路端,用來處理量測回報程序,該網路端包含一活動集,用來記錄可提供一服務給該無線通訊系統的一行動裝置的細胞的細胞識別且包含有:一裝置,用來接收從該行動裝置所傳送的一量測回報訊息,其中該量測回報訊息用來通知一細胞取代程序,並包含有一第一細胞的第一細胞識別;一裝置,用來判斷該第一細胞的第一細胞識別是否存在於該活動集,以及該活動集記錄的細胞識別數量是否超過一預設數量,用以產生一判斷結果;一裝置,用來根據該判斷結果,進行該細胞取代程序。The invention further discloses a network for a wireless communication system for processing a measurement report program, the network end comprising an activity set for recording a mobile device capable of providing a service to the wireless communication system The cell of the cell is identified and includes: a device for receiving a measurement report message transmitted from the mobile device, wherein the measurement report message is used to notify a cell replacement program and includes a first cell a cell identification device for determining whether the first cell identification of the first cell is present in the active set, and whether the number of cell identifications recorded in the activity set exceeds a predetermined number to generate a determination result; And means for performing the cell replacement procedure based on the result of the determination.
請參考第2圖,第2圖為本發明實施例一無線通訊系統10之示意圖。無線通訊系統10可為一通用移動通信系統(Universal Mobile Telecommunications System,UMTS)或任何其他相似的網路系統,其簡略地係由一網路端及複數個行動裝置所組成。在通用移動通信系統中,網路端可為一通用陸地全球無線存取網路(Universal Terrestrial Radio Access Network,UTRAN),而行動裝置可視作用戶端(UEs),如行動電話、電腦系統等裝置。此外,根據傳輸方向,網路端及用戶端可視為一傳送器及一接收器。舉例來說,對於一上鏈路(uplink,UL)傳輸,用戶端為傳送端而網路端為接收端;對於一下鏈路(downlink,DL)傳輸,網路端為傳送端而用戶端為接收端。Please refer to FIG. 2, which is a schematic diagram of a wireless communication system 10 according to an embodiment of the present invention. The wireless communication system 10 can be a Universal Mobile Telecommunications System (UMTS) or any other similar network system, which is composed of a network and a plurality of mobile devices. In a universal mobile communication system, the network can be a Universal Terrestrial Radio Access Network (UTRAN), and the mobile devices can be regarded as user terminals (UEs), such as mobile phones, computer systems, and the like. . In addition, according to the transmission direction, the network end and the user end can be regarded as a transmitter and a receiver. For example, for an uplink (UL) transmission, the UE is the transmitter and the network is the receiver; for the downlink (DL) transmission, the network is the transmitter and the client is the client. Receiving end.
請參考第3圖,第3圖為本發明實施例一通訊裝置20之示意圖。通訊裝置20可為第2圖中的網路端,其包含一處理裝置200、一儲存單元210以及一通訊介面單元220。處理裝置200可為一微處理器或一特殊應用積體電路(application-specific integrated circuit,ASIC)。儲存單元210可為任一資料儲存裝置,用來儲存一程式碼214,並透過處理裝置200讀取及執行程式碼214。舉例來說,儲存單元210可為用戶識別模組(subscriber identity module,SIM)、唯讀式記憶體(read-only memory,ROM)、隨機存取記憶體(random-access memory,RAM)、光碟唯讀記憶體(CD-ROMs)、磁帶(magnetic tapes)、軟碟(floppy disks)、光學資料儲存裝置(optical data storage devices)等等,而不限於此。控制通訊介面單元220可為一無線收發器,其根據處理裝置200的處理結果用來與用戶端進行無線通訊。Please refer to FIG. 3, which is a schematic diagram of a communication device 20 according to an embodiment of the present invention. The communication device 20 can be the network terminal in FIG. 2, and includes a processing device 200, a storage unit 210, and a communication interface unit 220. Processing device 200 can be a microprocessor or an application-specific integrated circuit (ASIC). The storage unit 210 can be any data storage device for storing a code 214 and reading and executing the code 214 through the processing device 200. For example, the storage unit 210 can be a subscriber identity module (SIM), a read-only memory (ROM), a random access memory (RAM), a compact disc. CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like are not limited thereto. The control communication interface unit 220 can be a wireless transceiver for wirelessly communicating with the user terminal according to the processing result of the processing device 200.
請參考第4圖,其為本發明實施例一流程40之示意圖。流程40用於一網路端中,用來處理量測回報程序。網路端具有一活動集(active set),用來記錄可提供一服務給用戶端之細胞的細胞識別(cell identity)。流程40可編譯為程式碼214,並包含有以下步驟:Please refer to FIG. 4 , which is a schematic diagram of a process 40 according to an embodiment of the present invention. The process 40 is used in a network to process the measurement report program. The network has an active set for recording cell identity that provides a service to the cells of the client. The process 40 can be compiled into the code 214 and includes the following steps:
步驟400:開始。Step 400: Start.
步驟410:接收從用戶端所傳送的一量測回報訊息,其中量測回報訊息用來通知一細胞取代程序,並包含有一第一細胞的第一細胞識別。Step 410: Receive a measurement report message transmitted from the user end, wherein the measurement report message is used to notify a cell replacement program and includes a first cell identification of the first cell.
步驟420:判斷第一細胞的第一細胞識別是否存在於活動集,以及活動集記錄的細胞識別數量是否超過一預設數量,用以產生一判斷結果。Step 420: Determine whether the first cell identification of the first cell exists in the active set, and whether the number of cell identification records recorded in the active set exceeds a predetermined number to generate a determination result.
步驟430:根據判斷結果,進行細胞取代程序。Step 430: Perform a cell replacement procedure according to the judgment result.
步驟440:結束。Step 440: End.
根據流程40,當網路端接收到量測回報訊息時,網路端首先判斷量測回報訊息中的第一細胞識別(即欲被取代的細胞)是否存在於活動集中,接著判斷活動集中的細胞識別數量是否超過細胞取代臨界值(replacement activation threshold),即在活動集中允許細胞的最小數量。當判斷第一細胞識別不存在於活動集中且該活動集中的細胞識別數量超過細胞取代臨界值時,不觸發細胞取代程序,以及當第一細胞識別不存在於活動集中而活動集記錄的細胞識別數量未超過細胞取代臨界值時,新增第一細胞識別於活動集且不移除於活動集中的任何細胞,藉以避免細胞取代程序的競爭情況(例如:網路端分別接收到二個量測回報訊息,但二個量測回報訊息皆指示取代相同的細胞)造成通訊中斷。詳細說明可參考上述,在此不再贅述。另一方面,若第一細胞識別存在於活動集中且活動集中的細胞識別數量超過細胞取代臨界值時,則進行一般的細胞取代程序。According to the process 40, when the network receives the measurement report message, the network first determines whether the first cell identification (ie, the cell to be replaced) in the measurement report message exists in the activity set, and then determines the activity concentration. Whether the number of cell recognition exceeds the replacement activation threshold, that is, the minimum number of cells allowed in the active set. When it is determined that the first cell recognition does not exist in the active set and the number of cell recognitions in the active set exceeds the cell replacement threshold, the cell replacement procedure is not triggered, and the cell identification of the active set is recorded when the first cell identification does not exist in the active set When the number does not exceed the cell replacement threshold, the newly added first cell is identified in the active set and is not removed from any cells in the active set to avoid competition in the cell replacement process (eg, the network receives two measurements separately) The message is returned, but both measurement reports indicate that the same cell is replaced by the same cell). For detailed description, reference may be made to the above, and details are not described herein again. On the other hand, if the first cell recognition is present in the active concentration and the number of cell recognitions in the active concentration exceeds the cell replacement threshold, then a general cell replacement procedure is performed.
根據流程40的概念,舉例說明如下,並請參考第5圖。用戶端傳送由1c類型事件所觸發的第一量測回報訊息至網路端,其中第一量測回報訊息通知網路端將細胞B或C以細胞D所取代,即對應於細胞D的主要共用領航通道(common pilot channel,CPICH)上的訊號品質優於對應於細胞B、C的主要共用領航通道,詳細說明可參考3GPP通訊協定TS 25.331。假設細胞C為活動集ASET中訊號品質最弱的細胞,因此,網路端會以細胞D來取代細胞C,並傳送第一活動集更新訊息通知用戶端。此時,活動集ASET中的細胞資訊被更新為細胞A、B、D。然而,網路端在傳送第一活動集更新訊息之前,又收到從用戶端傳送的第二量測回報訊息(其滿足觸發時間TTT或週期性回報時間間隔(Periodic Reporting Interval)的條件,詳細定義可參考上述,在此不再贅述),其中,第二量測回報訊息通知網路端將細胞B或C以細胞E來取代。在此情況下,網路端首先判斷細胞B、C的細胞識別是否存在於活動集中。由於活動集已被更新為包含細胞A、B、D的識別,因此細胞C的細胞識別不在活動集中。網路端接著判斷活動集中的細胞識別數量是否超過細胞取代臨界值。當判斷細胞識別數量小於細胞取代臨界值時,網路端將細胞E細增至活動集中;當判斷細胞識別數量大於細包取代臨界值時,則不觸發細胞取代程序,藉以避免不必要的取代/移除活動集中的細胞,造成通話服務中斷。According to the concept of the process 40, an example is as follows, and please refer to FIG. The UE transmits the first measurement report message triggered by the 1c type event to the network end, wherein the first measurement report message informs the network end that the cell B or C is replaced by the cell D, that is, the main corresponding to the cell D The signal quality on the common pilot channel (CPICH) is superior to the main shared pilot channel corresponding to cells B and C. For details, refer to the 3GPP protocol TS 25.331. Assume that cell C is the cell with the weakest signal quality in the active set ASET. Therefore, the network will replace cell C with cell D, and send the first active set update message to inform the user. At this time, the cell information in the active set ASET is updated to cells A, B, and D. However, before transmitting the first active set update message, the network end receives the second measurement report message transmitted from the user end (which satisfies the condition of the trigger time TTT or the periodic report interval (Periodic Reporting Interval), detailed For definition, refer to the above, and no further details are provided herein, wherein the second measurement report message informs the network end that the cell B or C is replaced by the cell E. In this case, the network first determines whether the cell identification of cells B and C exists in the active concentration. Since the active set has been updated to include the identification of cells A, B, and D, cell recognition of cell C is not in the active set. The network then determines if the number of cell recognitions in the active set exceeds the cell replacement threshold. When it is judged that the number of cell recognition is less than the cell replacement threshold, the network end increases the cell E to the active concentration; when it is judged that the cell identification number is greater than the fine packet replacement threshold, the cell replacement procedure is not triggered to avoid unnecessary substitution. /Remove cells in the active set, causing the call service to be interrupted.
值得注意的是,上述所有步驟,包含所建議的步驟,可透過硬體、軔體(即硬體裝置與電腦指令的組合,硬體裝置中的資料為唯讀軟體資料)或電子系統等方式實現。硬體可包含類比、數位及混合電路(即微電路、微晶片或矽晶片)。電子系統可包含系統單晶片(system on chip,SOC)、系統封裝(system in package,Sip)、電腦模組(computer on module,COM)及通訊裝置20。It is worth noting that all the above steps, including the suggested steps, can be through hardware, carcass (ie, the combination of hardware devices and computer commands, the data in the hardware device is read-only software) or electronic systems. achieve. The hardware can include analog, digital, and hybrid circuits (ie, microcircuits, microchips, or germanium wafers). The electronic system may include a system on chip (SOC), a system in package (Sip), a computer on module (COM), and a communication device 20.
綜上所述,本發明提供用來正確處理量測回報程序的方法及裝置,以降低通話服務的中斷機率。In summary, the present invention provides a method and apparatus for correctly processing a measurement return procedure to reduce the probability of interruption of a call service.
以上所述僅為本發明之較佳實施例,凡依本發明申請專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範圍。The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.
ASET...活動集ASET. . . Activity set
TTT...觸發時間TTT. . . Trigger time
A、B、C、D、E...細胞A, B, C, D, E. . . cell
10...無線通訊系統10. . . Wireless communication system
20...通訊裝置20. . . Communication device
200...處理裝置200. . . Processing device
210...儲存單元210. . . Storage unit
214...程式碼214. . . Code
220...通訊介面單元220. . . Communication interface unit
40...流程40. . . Process
400、410、420、430、440...步驟400, 410, 420, 430, 440. . . step
第1圖為習知一量測回報程序之示意圖。Figure 1 is a schematic diagram of a conventional measurement and return procedure.
第2圖為本發明實施例一無線通訊系統之示意圖。FIG. 2 is a schematic diagram of a wireless communication system according to an embodiment of the present invention.
第3圖為本發明實施例一通訊裝置之示意圖。FIG. 3 is a schematic diagram of a communication device according to an embodiment of the present invention.
第4圖為本發明實施例的流程圖。Figure 4 is a flow chart of an embodiment of the present invention.
第5圖為本發明實施例一量測回報程序的示意圖。FIG. 5 is a schematic diagram of a measurement and return procedure according to an embodiment of the present invention.
40...流程40. . . Process
400、410、420、430、440...步驟400, 410, 420, 430, 440. . . step
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US20040032845A1 (en) * | 2002-08-13 | 2004-02-19 | Rex Huan-Yueh Chen | Autonomous updating of a virtual active set for a wireless device |
US20060089142A1 (en) * | 2004-09-29 | 2006-04-27 | Nokia Corporation | Active set update (ASU) with high speed downlink shared channel (HS-DSCH) information |
EP1708523A1 (en) * | 2005-04-01 | 2006-10-04 | Matsushita Electric Industrial Co., Ltd. | Scheduling of mobile terminals in a mobile communication system |
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US8249580B2 (en) * | 2009-04-22 | 2012-08-21 | Intel Mobile Communication GmbH | Method of measurement reporting, method of handling measurement reports, cellular radio terminal and cellular radio network unit |
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US20040032845A1 (en) * | 2002-08-13 | 2004-02-19 | Rex Huan-Yueh Chen | Autonomous updating of a virtual active set for a wireless device |
US20060089142A1 (en) * | 2004-09-29 | 2006-04-27 | Nokia Corporation | Active set update (ASU) with high speed downlink shared channel (HS-DSCH) information |
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