TWI559790B - 在無線通訊網路中用於壅塞控制的設備及方法 - Google Patents

在無線通訊網路中用於壅塞控制的設備及方法 Download PDF

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TWI559790B
TWI559790B TW103113897A TW103113897A TWI559790B TW I559790 B TWI559790 B TW I559790B TW 103113897 A TW103113897 A TW 103113897A TW 103113897 A TW103113897 A TW 103113897A TW I559790 B TWI559790 B TW I559790B
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rrc
enodeb
network
notification
suspension
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TW103113897A
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TW201446026A (zh
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山吉薩Ｌ 班葛利
泰拉戴爾 馬汀茲
安娜Ｌ 平赫羅
潘尼特 傑恩
單長虹
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英特爾Ｉｐ公司
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Description

在無線通訊網路中用於壅塞控制的設備及方法 發明領域
實施例係關於無線通訊。一些實施例係關於無線電存取網路(RAN)壅塞。
發明背景
隨著智慧型電話及機器類型通訊(MTC)裝置之數目激增，網路壅塞已增加。此壅塞可引起服務品質之降級。
依據本發明之一實施例，係特地提出一種由一演進型節點B(eNodeB)執行以用於一網路中之壅塞控制的方法，該方法包含以下步驟：判定在該網路上存在一壅塞情況；以及在判定該壅塞情況存在時，將一暫止通知傳輸至一使用者裝備(UE)，以通知該UE在該網路中操作之一無線電承載者(RB)將被暫止，該UE正處於與該eNodeB之一RRC_CONNECTED狀態中。
100‧‧‧無線通訊網路
101‧‧‧行動管理實體(MME)
102、400‧‧‧演進型節點B(eNodeB)
104‧‧‧小區
111、500‧‧‧使用者裝備(UE)
201‧‧‧RRC訊息
202、203、204、301、302‧‧‧訊息
410、520‧‧‧處理器
420、530‧‧‧記憶體
430‧‧‧收發器
435、525‧‧‧指令
510‧‧‧天線
540‧‧‧通訊介面
圖1展示根據本文中所描述之一些實施例的無線 通訊網路。
圖2展示根據本文中所描述之一些實施例的在網路中之元件與裝置間的實例通訊。
圖3展示根據本文中所描述之一些實施例的在網路中之元件與裝置間的額外實例通訊。
圖4為展示根據本文中所描述之一些實施例的eNodeB之細節的方塊圖。
圖5展示根據本文中所描述之一些實施例的使用者裝備(UE)之實例方塊圖。
較佳實施例之詳細說明
以下描述及圖式充分說明特定實施例以使得熟習此項技術者能夠實踐該等實施例。其他實施例可併有結構、邏輯、電氣、程序及其他改變。一些實施例之部分及特徵可包括於彼等其他實施例中或替代彼等其他實施例。在技術方案中所陳述之實施例涵蓋彼等技術方案之所有可用等效物。
圖1展示根據本文中所描述之一些實施例的無線通訊網路100。無線通訊網路100可包括行動管理實體(MME)101、諸如演進型節點B(eNodeB)102之基地台及使用者裝備(UE)111。ENodeB 102及UE 111可操作以在無線通訊網路100中彼此無線地通訊。
無線通訊網路100之實例包括使用3GPP LTE標準以分時雙工(TDD)模式操作之演進型通用陸地無線電存 取網路(EUTRAN)。無線通訊網路100之另一實例包括使用3GPP-LTE標準以分頻雙工(FDD)模式操作之EUTRAN。無線通訊網路100之其他實例包括使用3GPP-UMTS標準以TDD、FDD或雙重模式操作而操作之UTRAN。無線通訊網路100之額外實例包括微波存取全球互通(WiMax)網路、第3代(3G)網路、Wi-Fi網路及其他無線資料通訊網路。
UE 111之實例包括蜂巢式電話(例如，智慧型電話)、平板電腦、電子閱讀器(例如，電子書閱讀器)、膝上型電腦、桌上型電腦、個人電腦、伺服器、個人數位助理(PDA)、網路器具、機上盒(STB)、網路路由器、網路交換器、網路橋接器、停車收費計、感測器及其他裝置。此等實例裝置當中之一些裝置(例如，停車收費計)可被視為延遲容忍裝置，其可包括機器類型通訊(MTC)裝置。MTC裝置可能不需要使用者互動來起始與網路(例如，無線通訊網路100)之通訊。此等實例裝置當中之一些其他裝置(例如，智慧型電話)可不被視為延遲容忍裝置(例如，非MTC裝置)。非MTC裝置(例如，諸如智慧型電話之使用者裝備(UE))可需要使用者互動來起始與網路(例如，無線通訊網路100)之通訊。
MME 101可為無線通訊網路100之主要控制節點。MME 101可與eNodeB 102通訊以追蹤並將訊息發送至UE 111。MME 101可經由類似於或相同於eNodeB 102之一或多個其他eNodeB來與除UE 111外之其他UE通訊。
ENodeB 102可作為地理區域(諸如，無線通訊網 路100中之小區104)中之伺服eNodeB來操作。ENodeB 102可經配置(例如，組配)以根據3GPP-LTE標準而作為eNodeB來操作，或根據3GPP UMTS標準而作為NodeB來操作。圖1展示僅包括一個eNodeB(例如，eNodeB 102)(作為實例)之無線通訊網路100。然而，無線通訊網路100可包括多個eNodeB(例如，類似於或相同於eNodeB 102之多個eNodeB)。多個eNodeB中之每一者可伺服無線通訊網路100中之特定小區，且可為或可不為eNodeB 102之相鄰者。
UE 111可由小區104中之eNodeB 102伺服。UE 111可經配置(例如，組配)以根據3GPP-LTE標準或其他標準操作。圖1展示僅包括由小區104中之eNodeB 102伺服的兩個UE(例如，UE 111)(作為實例)之無線通訊網路100。然而，無線通訊網路100可包括由eNodeB 102伺服之兩個以上UE。ENodeB 102及UE 111中之每一者可操作以使用正交分頻多重存取(OFDMA)技術來彼此通訊。
UE 111中之每一者可操作以根據OFDMA技術經由多載波通訊頻道來接收OFDMA通訊信號。OFDMA技術可按使用不同上行鏈路及下行鏈路頻譜之頻域雙工(FDD)模式或按對於上行鏈路及下行鏈路使用相同頻譜之時域雙工(TDD)模式來操作。OFDMA通訊信號可包含正交副載波。
隨著網路100中之UE 111的數目激增，無線電鏈路中之壅塞可引起當前使用者的體驗品質之降級，且新使用者可不能夠獲得無線電資源。在一些當前系統中，設置 了存取限制機制以用於對處於RRC IDLE中之UE 111及對新使用者的壅塞控制。
本文中之實施例提供用於在RRC_CONNECTED模式下之裝置的壅塞控制機制。實施例提供用以藉由允許RAN節點在UE 111處於連接模式時顯式地暫止特定資料無線電承載者(DRB)或傳信無線電承載者(SRB)來防止由無線電傳信或使用者訊務引起之無線電存取網路(RAN)壅塞的方法。
在根據(例如)3GPP TS 36.331操作之一些當前系統中，當存在失敗(例如，行動性失敗、無線電鏈路失敗或無線電資源控制(RRC)連接重新組配失敗等)時，暫止UE中之無線電承載者(RB)。系統可在啟動存取層(AS)安全性之後使用RRC連接重新建立程序來再繼續此等RB。舉例而言，當前系統可在AS安全性啟動之後使用RRC連接重新組配來再繼續RB。在實施於一些當前系統中之此程序中，所有RB被丟棄，且RB之重新建立可為具有高成本傳信額外負荷之相對較長程序。另外，可用系統不提供eNodeB 102在連接模式期間暫止特定RB，此暫止將有助於消除額外無線電鏈路壅塞情形。
各種實施例提供使eNodeB 102在連接模式期間暫止特定RB之不同方法。各種實施例可應用至在已建立至少一個DRB的情況下在連接模式中的UE 111的非保證位元速率(GBR)承載者。然而，諸實施例不限於此，且一些實施例可應用於SRB及GBR DRB或任何其他已定義的專用無線 電承載者(例如，小資料無線電承載者(SDRB))。
在各種實施例中，eNodeB 102將判定網路100上存在情況(例如，壅塞情況、超載情況或其他情況)。至少部分地基於此判定，eNodeB 102將傳輸暫止通知至UE 111，以便通知UE在網路100中操作之RB將被暫止。在各種實施例中，UE 111將處於與eNodeB 102之RRC_CONNECTED狀態中。本文中論述用於判定壅塞情況之存在的程序及準則以及用於通知UE 111暫止之程序。
一些實施例提供用以暫止及再繼續RB之擴展RRC連接重新組配訊息。在至少此等實施例中，eNodeB 102將發送具有暫止通知之RRC連接重新組配訊息至UE 111。暫止通知將至少包括待暫止之RB的識別資訊。UE 111將使用RRC連接重新組配完成訊息來應答：UE 111已將對應RB置於暫止狀態中。可在eNodeB 102與UE 111之間交換相同或類似訊息以再繼續RB。
在一些實施例中，除RRC連接重新組配訊息外之訊息可用以暫止或再繼續RB。圖2展示根據本文中所描述之一些實施例的在網路100中之元件與裝置間的實例通訊。然而，如一般熟習此項技術者將理解，可發生其他訊息及傳信。
在圖2中所說明之實施例中，eNodeB 102將RRC訊息201傳輸至UE 111。RRC訊息201可為(例如)根據LTE之3GPP標準系列中之標準的暫止無線電承載者訊息，但實施例不限於此。訊息201中之資訊元素(IE)可包括(例如)國際 行動用戶識別碼(IMSI)、UE 111之識別符、演進型封包系統(EPS)承載者識別碼及RB識別碼，但實施例不限於此。
在接收用於對應RB之訊息201(例如，暫止無線電承載者訊息)時，可禁止UE 111在彼RB上起始額外傳信。舉例而言，若UE 111處於連接不連續接收(DRX)模式下時，UE 111將不執行隨機存取(RA)程序或RRC重新組配，除非或直至UE 111自eNodeB 102接收到關於RB之顯式再繼續通知或諸如對RB之上行鏈路授予的隱式通知。
eNodeB 102亦可將回退計時器提供至UE 111，該回退計時器指示UE應在請求暫止RB、未暫止RB或暫止RB與未暫止RB兩者上之資源之前等待回退計時器之期滿。此類請求可包括(例如)起始或試圖起始對暫止RB或未暫止RB之RA或RRC重新組配。eNodeB 102可將回退計時器設定為可允許壅塞情形穩定之值。回退計時器可為當將暫止指示發送至UE 111時eNodeB 102發送至UE 111之參數。
暫止一些RB之決策可為實施相依的。在一些實施例中，網路觸發器及機制或其他準則(例如，包括RB之QoS特性)可界定何時及如何暫止某些RB。一些機制可包括基於儲存於eNodeB 102處或以其他方式可由eNodeB 102存取之RB壅塞資訊的決策。
在一些實施例中，eNodeB 102可自核心網路元件(例如，MME、存取網路發現及選擇功能(ANDSF)、策略及計費規則功能(PCRF)等)接收暫止指示。舉例而言，eNodeB 102可通知MME 101壅塞情況，且MME 101可基於(例如)UE 111訂用資訊來決定將暫止哪些RB。
網路100之業者或由網路業者實施之操作及維護功能(O&M)可歸因於不合需要之UE 111行為、訊務類型或在RB上傳輸之其他UE特定行為而判定暫止RB。網路100之業者或O&M功能可暫止RB以控制超載情形。
eNodeB 102或其他網路元件可考慮在釋放UE 111RRC連接(例如，將UE 111轉至RRCIdle)之前暫止由UE 111使用之哪些RB(若存在)。舉例而言，若eNodeB 102判定暫止RB為在UE 111中在作用中之僅有RB，則eNodeB 102上之用於釋放RRC連接的RRC非使用狀態計時器應被設定或作出回應，以使得不會歸因於非使用狀態而釋放UE 111連接。因此，在一些實施例中，可基於網路之壅塞狀態來調整此非使用狀態計時器，且可能相應地延遲或提前RRC連接釋放。
表1中展示用以暫止DRB之資訊元素(IE)之實例。實例IE可被稱作DRB-ToAddModSuspend，但實施例不限於此。表1之實例IE可包括實施於3GPP TS 36.331之IE DRB-ToAddMod中的額外欄位，例如，suspend-backoff-timer：
在訊息202中，UE 111將傳輸應答以應答暫止通知之接收。訊息202可包括UE 111已將對應RB置於暫止狀態中之應答。該應答可包括對應RB之識別資訊。
在壅塞情況已結束或計時器已期滿等之後，在訊息203中，eNodeB 102可告知UE 111：UE 111可再繼續對應RB上之操作。訊息203可為(例如)根據3GPP LTE標準系列中之標準的再繼續無線電承載者訊息，但實施例不限於此。
在訊息204中，UE 111將傳輸應答以應答再繼續通知之接收。訊息204可包括UE 111已再繼續使用或可稍後再繼續使用先前處於暫止狀態中之對應RB的應答。
根據一些實施例，UE 111可緩衝預期用於暫止RB之UE 111上行鏈路資料，而在下行鏈路中，eNodeB 102可緩衝資料直至對應RB得以再繼續。在一些實施例中，eNodeB 102可藉由告知MME 101暫止或再繼續RB之決策而在CN中起始至少與本文中所描述之暫止/再繼續程序稍微類似之暫止/再繼續程序。在一些實施例中，若暫止RB，則可修改PDCP捨棄計時器。在一些實施例中，UE 111可在對應計時器期滿時捨棄PDCP服務資料單元(SDU)。
在一些實施例中，上層可接收如本文中所描述之暫止及再繼續活動的指示，以使得此等層之實施可考慮到網路壅塞及無線電資源缺乏。
在一些當前系統中，網路100可根據(例如)3GPP TS 24.301在每存取點名稱(APN)基礎上於控制平面上執行 壅塞控制。網路100可拒絕向已壅塞之APN的任何新的對連接之請求。
一些實施例提供以下情形：網路100可暫止分配至APN之某些RB，以接納基於(例如)UE 111訂用或連接類型(例如，延遲容忍對非延遲容忍)而具有較高優先權的UE 111。在此等實施例中，網路100可基於APN壅塞指示而暫止某些RB。因此，根據一些實施例，壅塞控制可涉及在不釋放UE 111網路連接之情況下暫止使用者平面資源，且藉此避免歸因於連接建立之代價高昂的傳信額外負荷。根據一些實施例之壅塞控制可包括允許接納新請求之控制平面功能性。
因為當前系統可在MME中實施壅塞控制，所以實施例將來自MME之通知提供至(例如)eNodeB 102或無線電網路控制器(RNC)，以通知eNodeB將暫止RB。eNodeB 102可基於由MME 101提供之資訊來決定暫止哪些RB。當決定暫止RB時，MME資訊可考慮UE 111訂用資訊。eNodeB 102可傳輸應答訊息以應答該等訊息或自MME 101接收之關於RB暫止的其他資訊。
當處於壅塞情況下時，eNodeB 102可動態地暫止及再繼續來自不同UE 111之不同RB。用於此類決策之演算法可能為業者特定的或實施特定的。一些實施例可允許網路100之業者以在不同RB集束於相同EPS承載者中時可有用之更動態方式來管理資源。
一些實施例將訊息301及302添加至如下圖3中所 展示之S1介面(S1-AP)，或一些實施例可增強現有OVERLOAD START及OVERLOAD STOP訊息以攜載如本文中所描述之RB暫止資訊。
一旦APN壅塞得到管理，MME 101便通知eNodeB 102。eNodeB 102亦可在RAN超載情形中將壅塞通知提供至MME 101。MME 101可使用此資訊來起始暫止指示。
圖4為展示根據一些實施例的eNodeB 400之細節的方塊圖。eNodeB 400可適合用作eNodeB 102(圖1)。雖然一些實施例係關於根據3GPP LTE操作之eNodeB來加以描述，但其他實施例可包括用於實施根據3GPP UMTS標準之NodeB之功能的類似電路。eNodeB 400包括處理器410、記憶體420、收發器430及指令435。eNodeB 400可包括其他元件(未圖示)。
處理器410包含一或多個中央處理單元(CPU)、圖形處理單元(GPU)或其兩者。處理器410提供用於eNodeB 400之處理及控制功能性。記憶體420包含經組配以儲存用於eNodeB 400之指令435及資料的一或多個暫態及靜態記憶體單元。
收發器430包含一或多個收發器，該一或多個收發器包括多輸入及多輸出(MIMO)天線以支援MIMO通訊。收發器430尤其自UE 111(圖1)接收UL傳輸且傳輸DL傳輸至UE 111。
處理器410可判定網路上存在壅塞情況。處理器 410可基於本文中所描述之準則或演算法來判定壅塞指示之存在。舉例而言，處理器410可基於由eNodeB 400維持之RB壅塞資訊來判定壅塞情況存在。在一些實施例中，處理器410可基於自用於APN之MME 101接收的壅塞資訊來判定壅塞情況存在。
收發器430可將暫止通知傳輸至UE 111(其中UE 111處於與eNodeB 400之RRC_CONNECTED狀態中)，以通知UE 111在網路100(圖1)中操作之RB將被暫止。可在無線電資源控制(RRC)重新組配訊息中傳輸暫止通知，或可在根據LTE之3GPP標準系列中之標準的RRC暫止無線電承載者訊息中傳輸暫止通知，但實施例不限於此。RRC暫止無線電承載者訊息可包括如本文中所描述之回退計時器，其用以指示UE 111在請求對應RB上之資源之前應等待的持續時間。處理器410可基於回退計時器之值來修改PDCP捨棄計時器。
收發器430可在傳輸暫止通知之後的時點傳輸再繼續通知，以通知UE 111對應RB可供使用。收發器430可回應於通知UE 111至少一個RB將不可用或RB已再繼續而自UE 111接收應答訊息。該應答將包括對應RB之識別資訊。
指令435包含在計算裝置(或機器)上執行以使此計算裝置(或機器)執行本文中所論述之方法中之任一者的指令或軟體之一或多個集合。指令435(亦被稱為電腦或機器可執行指令)在其由eNodeB 400執行期間可完全或至少 部分地駐留於處理器410及/或記憶體420內。處理器410及記憶體420亦包含機器可讀媒體。
圖5為根據一些實施例之UE 500的基本組件之方塊圖。UE 500可適合用作UE 111(圖1)。UE 500可支援如本文中關於圖1至圖4所描述的用於壅塞控制之方法。
UE 500包括經配置以與NodeB、eNodeB 102(圖1)或其他類型之無線區域網路(WLAN)存取點通訊的一或多個天線510。UE 500進一步包括處理器520、指令525及記憶體530。UE 500可進一步包括通訊介面540。在一個實施例中，記憶體530包括(但不限於)隨機存取記憶體(RAM)、動態RAM(DRAM)、靜態RAM(SRAM)、同步DRAM(SDRAM)、雙資料速率(DDR)SDRAM(DDR-SDRAM)或能夠支援高速資料緩衝之任何裝置。
實例實施例允許UE 500進入與網路100之RRC_CONNECTED狀態。實例實施例允許UE 500使用通訊介面540且在UE處於RRC_CONNECTED狀態中時接收暫止通知，該暫止通知指示在網路100中操作之RB已被暫止。
實例實施例允許UE 500使用通訊介面540傳輸對暫止通知之應答。藉由使用通信介面540，UE 500可接收回退計時器之值，其指示UE 500不應請求資源的持續時間。UE 500接著將至少在該持續時間中不在RB上進行傳輸。
處理器520可包括用以使UE 500能夠處理經由天線510自網路接收之信號的邏輯或程式碼。處理器520可包括用以允許UE 500將用於上行鏈路傳輸之資料緩衝於記憶 體530中歷時至少該持續時間的程式碼或其他指令525。處理器520可配置以在回退計時器期滿時傳輸至少此經緩衝資料，或處理器520可在回退計時器期滿時捨棄緩衝資料。然而，實施例不限於關於經緩衝資料之此等兩個動作。
如一般熟習此項技術者將易於瞭解的，貫穿本發明所描述之各種態樣可擴展至其他電信系統、網路架構及通訊標準。藉由非限制性實例，各種態樣可擴展至其他通用行動電信系統(UMTS)系統。各種態樣可用於使用長期演進(LTE)(在FDD、TDD或兩種模式下)及進階LTE(LTE-A)(在FDD、TDD或兩種模式下)的系統中。
如本文中所描述之實例可包括邏輯或數個組件、組件或機制，或可對邏輯或數個組件、組件或機制進行操作。組件為能夠執行指定操作之有形實體，且可以某一方式來加以組配或配置。在一實例中，可以指定方式將電路配置(例如，在內部或關於諸如其他電路之外部實體)為組件。在一實例中，一或多個電腦系統(例如，獨立電腦系統、用戶端或伺服器電腦系統)或一或多個硬體處理器之全部或部分可由韌體或軟體(例如，指令、應用程式部分或應用程式)組配為進行操作以執行指定操作之組件。在一實例中，軟體可(1)駐留於非暫時性機器可讀媒體上或(2)駐留於傳輸信號中。在一實例中，軟體在由組件之基礎硬體執行時使硬體執行指定操作。
因此，詞「組件」及「組件」被理解為涵蓋有形實體，其為經實體建構、特定組配(例如，硬連線)或臨時(例 如，暫時性)組配(例如，程式化)而以指定方式操作或執行本文中所描述之任何操作的部分或全部的實體。考慮組件經臨時組配之實例，組件之一個例項可不與相同或不同組件之另一例項同時存在。舉例而言，在組件包含使用軟體組配之通用硬體處理器的情況下，通用硬體處理器可在不同時間被組配為各別不同組件。因此，軟體可組配硬體處理器，(例如)以在一個時間實例構成特定組件，且在不同時間實例構成不同組件。
目前描述之方法、系統及裝置實施例的額外實例包括以下非限制性組配。以下非限制性實例中之每一者可獨立，或可按任何排列或組合與下文或貫穿本發明提供之其他實例中之一或多者組合。先前描述及圖式充分說明特定實施例以使得一般熟習此項技術者能夠實踐該等實施例。其他實施例可併有結構、邏輯、電氣、程序及其他改變。一些實施例之部分及特徵可包括於彼等其他實施例中或替代彼等其他實施例。
遵照要求【發明摘要】之37 C.F.R.§1.72(b)來提供【發明摘要】，該【發明摘要】將允許讀者確定技術揭示內容之性質及主旨。在理解【發明摘要】將不用以限制或解譯申請專利範圍之範疇或意義之基礎上提交【發明摘要】。特此將以下技術方案併入至【實施方式】中，其中每一技術方案獨立作為單獨實施例。
100‧‧‧無線通訊網路
101‧‧‧行動管理實體(MME)
102‧‧‧演進型節點B(eNodeB)
104‧‧‧小區
111‧‧‧使用者裝備(UE)

Claims (16)

  1. 一種由演進型節點B(eNodeB)執行之用於在網路中之壅塞控制的方法，該方法包含下列步驟：判定出在該網路上存在一壅塞情況；以及在判定出該壅塞情況存在之後，將一暫止通知傳輸到一使用者裝備(UE)，以通知該UE在該網路中操作的一無線電承載者(RB)將被暫止，該UE正處於關聯於該eNodeB的一RRC_CONNECTED狀態中，其中，該eNodeB係基於由該eNodeB所維持的RB壅塞資訊來判定出該壅塞情況存在，並且其中，該RB壅塞資訊是針對一存取點名稱(APN)而從一行動性管理實體(MME)接收而來。
  2. 如請求項1之方法，其中，該暫止通知係在一無線電資源控制(RRC)重新組配訊息中被傳輸。
  3. 如請求項1之方法，其中，該暫止通知係根據用於長期演進(LTE)之第3代合作夥伴計劃(3GPP)標準系列中的一標準而在一無線電資源控制(RRC)暫止無線電承載者訊息中傳輸。
  4. 如請求項3之方法，其中，該RRC暫止無線電承載者訊息包括一回退計時器，該回退計時器係用於指示出該UE在請求所對應之該RB上之資源之前應等待的一持續時間。
  5. 如請求項4之方法，其進一步包含下列步驟： 基於該回退計時器的一值來修改一封包資料聚合協定(PDCP)捨棄計時器。
  6. 如請求項1之方法，其進一步包含下列步驟：在傳輸了該暫止通知隨後的一時點處傳輸一再繼續通知，以通知該UE所對應之該RB是可供使用的。
  7. 如請求項1之方法，其進一步包含下列步驟：反應於通知該UE至少一個RB將為不可取用的，而從該UE接收一應答訊息，該應答訊息包括所對應之該RB的識別資訊。
  8. 一種用於在無線通訊網路中操作的使用者裝備(UE)，該UE包含：實體層電路，其受配置為可進行下列操作：進入關聯於該網路的一RRC_CONNECTED狀態；在該UE處於一RRC_CONNECTED狀態中時從該網路接收用於通知操作於該網路中的一無線電承載者(RB)已被暫止的一暫止通知，其中，該暫止通知包括一無線電資源控制(RRC)暫止無線電承載者訊息，該RRC暫止無線電承載者訊息包括一回退計時器，該回退計時器係用於指示出該UE在請求所對應之該RB上之資源之前應等待的一持續時間，並且其中，一封包資料聚合協定(PDCP)捨棄計時器已基於該回退計時器之一值而被修改；以及傳輸對該暫止通知之一應答。
  9. 如請求項8之UE，其中，該實體層電路進一步受組配為可進行下列操作：接收針對一回退計時器的一值，該值指示出該UE不應請求該RB上之資源的一持續時間；以及至少在該持續時間內避免在該RB上進行傳輸。
  10. 如請求項9之UE，其進一步包含一記憶體及處理電路，並且其中，該處理電路受配置為可將用於上行鏈路傳輸的資料緩衝在該記憶體中達至少該持續時間。
  11. 如請求項10之UE，其中，該處理電路受配置為可在該回退計時器期滿之後傳輸所緩衝之該資料。
  12. 如請求項10之UE，其中，該處理電路受配置為可在該回退計時器期滿之後捨棄所緩衝之該資料。
  13. 一種在網路中操作的演進型節點B(eNodeB)，該eNodeB包含：處理電路，該處理電路受配置為可基於與在該網路中操作的一無線電承載者(RB)相關的壅塞資訊而判定出該RB的使用應被暫止；以及一收發器，該收發器受配置為可進行下列操作：在判定出該RB之使用應被暫止之後，傳輸一暫止通知，以通知一使用者裝備(UE)該RB將被暫止，該UE係關聯於該eNodeB的一RRC_CONNECTED狀態中，其中，該eNodeB係基於由該eNodeB所維持的RB壅塞資訊來判定出一壅塞情況存在，並且其中，該RB壅塞資訊是針對一 存取點名稱(APN)而從一行動性管理實體(MME)接收而來。
  14. 如請求項13之eNodeB，其中，該實體層電路進一步受配置為可在一無線電資源控制(RRC)重新組配訊息中傳輸該暫止通知、或根據用於長期演進(LTE)之第3代合作夥伴計劃(3GPP)標準系列中之一標準而在一RRC暫止無線電承載者訊息中傳輸該暫止通知。
  15. 一種受用於在無線通訊網路中操作的使用者裝備(UE)執行的方法，該方法包含下列步驟：進入關聯於該網路的一RRC_CONNECTED狀態；在該UE處於一RRC_CONNECTED狀態中時從該網路接收用於通知一無線電承載者(RB)已被暫止使用的一暫止通知，其中，該暫止通知包括一無線電資源控制(RRC)暫止無線電承載者訊息，該RRC暫止無線電承載者訊息包括一回退計時器，該回退計時器係用於指示出該UE在請求所對應之該RB上之資源之前應等待的一持續時間，並且其中，一封包資料聚合協定(PDCP)捨棄計時器已基於該回退計時器之一值而被修改；以及傳輸對該暫止通知的一應答；以及至少在於該暫止通知中所指定的一持續時間內避免在該RB上進行操作。
  16. 如請求項15之方法，其進一步包含下列步驟：將資料緩衝於一記憶體中達該持續時間；以及在接收到指示出該RB可供使用的一再繼續通知之 後傳輸該資料。
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