TWI603643B - 行動網路中之回復封包服務 - Google Patents
行動網路中之回復封包服務 Download PDFInfo
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- TWI603643B TWI603643B TW105119738A TW105119738A TWI603643B TW I603643 B TWI603643 B TW I603643B TW 105119738 A TW105119738 A TW 105119738A TW 105119738 A TW105119738 A TW 105119738A TW I603643 B TWI603643 B TW I603643B
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Classifications
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- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- 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
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Databases & Information Systems (AREA)
- Mathematical Physics (AREA)
- Computer Security & Cryptography (AREA)
- Probability & Statistics with Applications (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Time-Division Multiplex Systems (AREA)
Description
此處之揭示大致上關於用於回復行動網路中之封包服務的裝置、系統、及/或方法。
在例如根據第3代合夥專案(3GPP)等習知的公眾地面行動網路(PLMN)中,例如通用封包無線電系統演進無線電接取網路(GERAN)、全球行動電信系統陸面無線電接取網路(UTRAN)、及演進的UTRAN(E-UTRAN)等各式各樣的無線電接取網路(RAN)可以連接至共同核心網路及提供各式各樣不同的服務。舉例而言,GERAN或UTRAN可以單獨地或部份地提供語音服務。相對地,E-UTRAN可以單獨地或部份地提供封包服務。
100‧‧‧行動網路
102‧‧‧使用者設備
110‧‧‧行動管理實體
114‧‧‧服務閘道器
118‧‧‧服務一般封包無線電子系統支援節點
126‧‧‧高速串列介面節點
136‧‧‧公眾資料網路閘道器
140‧‧‧策略及改變規則功能節點
200‧‧‧架構
208‧‧‧行動交換中心伺服器
210‧‧‧收發器
212‧‧‧處理器
214‧‧‧記憶體
800‧‧‧機器
圖1是舉例說明的實施例中行動網路的方塊圖。
圖2是舉例說明的實施例中用於電路切換後降的行動
網路架構的方塊圖。
圖3是資料流程,顯示舉例說明的實施例中經由MME之資料封包的回復。
圖4是資料流程,顯示舉例說明的實施例中用於SGSN內通訊的暫停及回復程式。
圖5是舉例說明的實施例中用於服務GERAN胞及UTRAN胞的結合2G/3G SGSN的資料流程。
圖6是在舉例說明的實施例中用於分別服務GERAN胞及UTRAN胞之專用的2G SGSN及專用的3G SGSN之訊息流程。
圖7是在舉例說明的實施例中用於儲存無線電接取技術資訊的流程圖。
圖8是顯示根據某些舉例說明的實施例之機器的組件的方塊圖。
下述說明及圖式充份地顯示具體實施例,以使習於此技藝者能夠實施它們。其它實施例可以將結構的、邏輯的、電性的、程序及其它改變併入。其它實施例中部份及特點可以包含或替代某些實施例的部份及特點。申請專利範圍中揭示的實施例涵蓋這些申請專利範圍項所有可取得的均等範圍。
圖1是舉例說明的實施例中行動網路100的方塊圖。在各種實例中,行動網路100是演進的封包核心網路,支
援但非限於GERAN、UTRAN、及/或E-UTRAN。須瞭解,雖然各式各樣的組件可為所示的特定元件,但是,這些組件可因各種相關的行動網路及行動網路環境而由類似的或適當的組件取代。
使用者設備102(如同所知,也稱為行動台(MS))經由無線電介面104(例如,長程演進(LTE-Uu)而通訊地耦合至E-UTRAN 106系統。E-UTRAN 106經由S1-MME(行動管理實體)鏈路108而通訊地耦合至行動管理實體(MME)110以及經由S1-U鏈路112而通訊地耦合至服務閘道器114。MME 110可以經由S11鏈路115而直接連接至服務閘道器114以及經由S3鏈路116而連接至服務一般封包無線電子系統支援節點(SGSN)118,服務一般封包無線電子系統支援節點(SGSN)118本身經由S4鏈路120而連接至服務閘道器114。MME 110包含通至高速串列(HSS)介面節點126之內部S10鏈路122以及S6a鏈路124。
服務閘道器114經由S12鏈路128而連接至一或更多UTRAN 130及GERAN 132網路。服務閘道器114又經由S5鏈路134而連接至公眾資料網路(PDN)閘道器136。PDN閘道器136可以經由鏈路138而連接至策略及改變規則功能(PCRF)節點140及經由SGi鏈路142而連接至例如IP多媒體子系統(IMS)等操作者的IP服務144。PCRF節點140經由鏈路146而連接至操作者的IP服務144。
圖2是舉例說明的實施例中用於電路切換後降的行動網路架構200的方塊圖。架構200與行動網路100或任何適當的行動網路相關地操作。
UE 102通訊上耦合至或可耦合至UTRAN胞202、GERAN胞204、及E-UTRAN胞206。UTRAN胞202及GERAN胞204耦合至或可耦合至SGSN 118以及行動交換中心(MSC)伺服器208。E-UTRAN胞206耦合至或可耦合至MME 110。MME 110耦合至或可耦合至SGSN 118及MSC伺服器208。
GERAN 132及UTRAN 130 RANs可以連接至網路100的電路切換(CS)域,例如具體實施於架構200中。對於當用戶要設立CS語音呼叫時UE 102在E-UTRAN 206胞中或是經由E-UTRAN 206胞而通訊的情形,行動網路100包含CS後降(CSFB)。在CSFB中,E-UTRAN 206胞中的UE 102可以發訊通知核心網路100,其要建立CS呼叫或UE 102要回應CS呼叫之播叫。例如經由封包切換(PS)交接、經由「藉由改向而釋放」程序、或是經由網路輔助胞轉換(CCO),行動網路100及/或架構200可以將UE 102改向至GERAN 204或是UTRAN 202胞。在這些實例中,經由MSC伺服器208,UE 102建立行動發起呼叫或接收行動終止呼叫。一旦在GERAN 204及/或UTRAN 202胞中釋放CS呼叫時,UE 102依靠它自己(例如經由胞重選)或是在GERAN及/或UTRAN的幫助之下(舉例而言,假使在用於CS呼叫的無線電連接釋放
期間,GERAN 204及/或UTRAN 202胞命令UE 102立即選取特定的E-UTRAN胞206),返回至E-UTRAN胞206。
在CS呼叫期間,假使UE 102是在GERAN胞204中以及UE 102或GERAN胞204不支援CS服務以及封包服務的同時使用(例如,由於雙傳送模式(DTM)特點未出現或未受支援),則網路100及/或架構200可以暫停用於UE 102的封包服務。在此情形中,下行鏈路封包無法遞送給UE 102但是可以由封包資料網路閘道器(PDN-GW)朝向UE 102遞送,可能不必消耗網路100及/或架構200的資源。在實例中,UE 102及/或核心網路節點(例如,適當地為MME 110及/或SGSN 118)中之一可以通知服務閘道器(S-GW)及/或PDN-GW:閘道器應該不再從UE 102遞送下行鏈路使用者封包。增加地或替代地,MME 110或SGSN 118可以使用於即時服務之專用的封包承載不活躍。這些服務可以要求使用者資料封包在相當短的時間內遞送。
當CS呼叫被釋放時或是當CS呼叫期間UE 102移交給CS服務及封包服務被同時使用的胞時,UE 102或是網路100及/或架構200可以將下述訊息發訊給S-GW及/或PDN-GW:閘道器可以回復封包服務(例如,閘道器可以回復從使用者裝置102遞送下行鏈路使用者平面封包)。
在各式各樣的實例中,當UE 102在GERAN胞204中時,為了發訊以暫停封包服務,則例如3GPP標準等用
於行動網路100的標準可以提供二程序:由MME 10起始暫停以及由UE 102(例如,經由SGSN 118)起始暫停。程序包含取決於是否對GERAN 204或是UTRAN 202目標胞執行CSFB、是否經由PS移交或是經由改向而釋放或是CCO以執行CSFB、在CSFB之前閒置模式發訊縮減(ISR)是否被致動、以及服務GERAN胞204及/或UTRAN胞202的SGSN 118是否為UE 102登錄的SGSN 118之變異。
對應地,當UE 102返回至E-UTRAN胞206時,有二種不同的程序以回復封包服務,一程序是使用經由MME 110的發訊以及另一程序是使用經由SGSN 118的發訊。但是,導因於重新連接可能藉以發生之多個可能的情境,有些情形是3GPP標準的主回復程序在回復封包服務時失敗。在這些情形中,封包服務維持暫停以及UE 102維持無法達到行動終止封包服務。舉例而言,假使UE 102為了例如在網際網路協定(IP)上之IMS發訊或是短訊服務(SMS)等VoLTE以外的IP多媒體子系統(IMS)而登錄時,則由於用於這些服務的發訊可以利用對話啟動協定(SIP)以及用以傳送Sip發訊訊息的封包承載已被暫停止,所以,行動終止的即時訊息或是短訊不會遞送給UE 102。
UE 102包含無線收發器210、處理器212、及包含暫存器的電子記憶體214。收發器配置成與UTRAN胞202、GERAN胞204、及E-UTRAN胞206通訊。處理器
212配置成至少部份地控制一般UE 102以及其組件210、214的操作。處理器212可為此技藝中所知的微處理器、控制器、或其它專用硬體。電子記憶體214可為或是包含根據各種電子記憶體中的任何記憶體或其它適合實施此技藝中習知的資料暫存器的技術而實施的暫存器。
圖3是資料流程300,顯示舉例說明的實施例中經由MME 110而回復資料封包。如上所述,封包服務的回復可以經由MME 110而發生。當UE 102返回至E-UTRAN 206及封包服務在CS呼叫期間暫停時,則UE 102藉由傳送追蹤區更新(TAU)請求訊息302給MME 110而執行結合的追蹤區更新程序(請參見例如TS 23.272子條款6.5及7.6以及TS 24.301子條款5.5.3.2.2)。在給MME 110之TAU請求訊號啟始回復/修改承載訊息304朝向S-GW 306的情形中,S-GW可以將此解譯為不明確的回復以及據此通知PDN-GW(請參見例如TS 23.401子條款5.3.3.2,步驟9及13)。
在各種情形中,在MME 110中的UE 102內容未被標誌為「暫停」及MME 110也未啟始任何朝向S-GW 306或SGSN 118之TAU有關的發訊。在某些實例中,假使以及在某些情形中僅假使經由改向釋放或CCO(例如,未經由PS移交)而執行CSFB,以及演進節點B(eNode-B)308對MME 110標示,在目標胞中UE 102對於封包服務是無法利用的,則MME 110將UE 102內容標誌為「暫停」。在這些情形中,用於CSFB的目標胞可為GERAN
胞204以及UE 102及GERAN胞204中之一或更多正未支援雙傳模式(DTM)。結果,假使經由PS移交而執行CSFB時或是假使目標胞是UTRAN胞202時,則MME 110將不會將UE 102內容標誌為暫停。
在實例中,假使ISR被致動且UE 102將TAU請求訊息302傳送給UE 102已經向其登錄的MME 110,則MME 110不會起始任何朝向S-GW 306及/或SGSN 118之TAU有關的發訊。整體而言,假使經由PS移交而執行CSFB或僅假使目標胞是UTRAN胞202,且假使在CS呼叫期間ISR維持致動以及在呼叫釋放之後UE 102返回至相同的MME 110,則經由MME 110的回復不會根據傳統的行動網路100協定而工作。
在實例中,行動網路100包含協定,以致於在各種實例中,當UE返回至E-UTRAN及封包服務在CS呼叫期間暫停時,則UE藉由傳送TAU請求訊息給MME 110而執行合併的TAU程序(圖3;也請參見TS 232.272子條款6.5及7.6以及TS 24.301子條款5.5.3.2.2)。在實例中,在UE起始合併的TAU程序(例如,在UE 102格式化TAU請求訊息之前)之前,UE 102可以局部地不致動ISR,舉例而言,假使在下一更新(TIN)中使用的UE 102內部控制參數暫時識別的值是「RAT有關」時,則UE 102可以將值改變至「P-暫時行動用戶識別」(P-TMSI)。
在各式各樣的實例中,假使TIN設定於P-TMSI,則
UE 102聚集TAU請求訊息的內容以致促使MME 110起始朝向SGSN 118及S-GW 306的TAU有關的發訊,因而回復封包服務。在實例中,假使UE 102回復UE 102內容中標誌為暫停的MME 110,例如假使CSFB程序的目標胞是GERAN胞204及藉由改向釋放或CCO而執行CSFB時,則UE 102未執行ISR的局部不致動(例如,為了回復封包服務)。
參考封包流程300,假使在傳送TAU請求訊息302之前,UE 102將TIN設定於P-TMSI,則根據從P-TMSI及有關的RAI映射的GUIT,UE 102將全區獨特暫時識別(GUTI)資訊要件聚集在TAU請求訊息302中。這將促使或強制MME 110與SGSN 118交換發訊訊息(舉例而言,例如此處揭示的3G SGSN等「老」SGSN 118;也請參見TS 23.401子條款5.3.3.2,步驟4、5、及7;內容請求、內容響應、及內容確認)、以及與S-GW 306交換訊息(Id,步驟9及13,修改承載請求及修改承載響應)。當S-GW 306接收修改承載請求或是修改接取承載請求訊息時,則S-GW 306將這些請求解譯為不明確請求回復封包服務以及據此通知PDN-GW。在TAU發訊期間,MME 110立即重建與UE 102、老SGSN 118(例如,3G SGSN)、及S-GW 306的ISR。
在各種實例中,不會為了為CSFB而登錄的UE 102而致動ISR。在各種實例中,可以修改基地台控制器(BSC)的行為。在此實例中,假使GPRS回復不成功
能,則BSC可以避免在通道釋放訊息(此處已揭示)中包含至E-UTRAN的改向資訊。UE 102維持在GERAN胞204上以及有機會執行路由區更新程序以回復封包服務。在實例中,MME 110行為可以被修改,舉例而言,在支援GERAN的網路中,當UE 102執行CSFB時,MME 110將UE 102標誌為暫停。
在各式各樣的實例中,雖然UE 102可以執行TAU程序,但是,行動網路100仍可以避免封包服務不會回復之其它網路情形。行動網路100可以包含根據傳統標準及某些傳統協定操作的傳統網路之元件。行動網路100可以包含在MME 110與SGSN 118之間交換的三(3)增加的訊息。但是,增加的訊息限於UE 102在CSFB期間真實地暫停封包服務之情形以及IRS被致動的情形(例如,假使沒有連接至核心網路的GERAN或假使PLMN未致動ISR,則封包服務無論如何不會暫停)。增加的訊號又受限於MME 110未將UE 102內容標誌為暫停的情形。
圖4是資料流程400,顯示在舉例說明的實施例中,用於SGSN 118內通訊的暫停及回復程序。可以藉由網路100或是藉由不一定包含此處與網路100相關說明之協定的網路,以實施資料流程400。
可以在UE 102、基地台子系統(BSS)404、SGSN 118、及MSC 208之間建立專用模式402。UE 102將暫停訊息406傳送給BSS 404。BSS 404將暫停訊息408傳送給SGSN 118。SGSN 118以暫停確認訊息410回覆。在回
復程序初始時,BSS 404將回復訊息412傳送給SGSN 118。SGSN 118以回復確認訊息414回覆。BSS 404將通道釋放訊息416傳送給UE 102,UE 102接著將路由區更新請求418傳送給SGSN 118。
假使用於CSFB的目標胞是GERAN胞204以及UE 102及GERAN胞204未支援DTM時,如上詳述般,UE 102可以對SGSN 118起始暫停程序。假使ISR被致動時,則從BSS 404接收暫停訊息408的SGSN 118初始朝向S-GW及/或PDN-GW 306的暫停程序,或者,假使UE 102登錄至不同的SGSN 118時(例如,先前登錄的SGSN 118),則SGSN 118將暫停請求遞送至先前的SGSN 118,接著,朝向S-GW及/或PDN-GW 306起始暫停程序(舉例而言,請參見TS 23.272子條款6.2,步驟3c,以及子條款6.3,步驟7及8)。在各式各樣的實例中,當ISR被致動時,MME 110未由SGSN 118或S-GW 306通知分封承載已被暫停。而且,假使稍後在CSFB呼叫期間,UE 102執行移交給GERAN胞204以及UE 102或GERAN胞204未支援DTM時,則如上詳述般,UE 102朝向SGSN 118啟始暫停程序。
在各種實例中,在CS呼叫終止之後,UE 102回復PS服務(例如,根據TS 23.060)。在各種實例中,假使在CS語音呼叫終止之後,UE 102維持在UTRAN/GERAN上時,則UE 102執行正常行動管理程序(例如,如TS 23.060[3]及TS 24.008[21]中界定般)。在某些實例中,
回復PS服務不會根據BSS-SGSN發訊而發生以及UE不會在GERAN/UTRAN中啟始正常行動管理程序。
舉例而言,假使導因於CS系統間移交(例如,在CSFB經由PS移交而從E-UTRAN至UTRAN之後,CS呼叫從UTRAN移交至GERAN)而暫停SGSN內部時,則導因於無線電系統的改變(請參見例如TS 23.060子條款16.2.1.2.1),經由BSS-SGSN發訊的回復不會發生,或者,在某些情形中是不可能的。
圖5是舉例說明的實施例中用於服務GERAN胞204及UTRAN胞202等二者的結合2G/3G SGSN 502的資料流程500。可以藉由網路100或是藉由不一定包含此處與網路100相關說明之協定的網路,以實施資料流程500。
在UE 102、BSS 404、2G/3G SGSN 502、服務無線電網路子系統504(SRNS,例如對於UTRAN是等同的基地台子系統)與MSC 208之間,交換系統間移交訊息504。UE 102將暫停訊息506傳送至BSS 404。BSS 404將暫停訊息508傳送至2G/3G SGSN 502。SGSN 502將SRNS內容請求510遞送至SRNS 504。SRNS 504傳送SRNS內容響應512給SGSN 502。SGSN 502傳送暫停確認訊息514給BSS 404。BSS 404傳送回復訊息516給SGSN 502。在顯示的實例中,SGSN 502以回復未確認訊息518回覆。BSS 404傳送通道釋放訊息520給UE 102。UE 102傳送路由區更新請求522給SGSN 502。
因此,回復訊息516及回復未確認訊息518促使UE
102啟始路由區更新請求程序以回復封包服務。但是,在某些情形中,當某些或所有命令UE 102選取E-UTRAN胞之TCH及SDCCH資訊元件釋放之後,通道釋放訊息包含胞選取標示符時,則即使通道釋放訊息520未包含一般封包無線電子系統(GPRS)回復成功之標示,UE 102仍然不能夠啟始路由區更新程序以回復封包服務。
圖6是在舉例說明的實施例中用於分別服務GERAN胞204及UTRAN胞202之專用的2G SGSN 602及專用的3G SGSN 604之訊息流程600。因此,當圖5的訊息流程500可應用於合併的2G/3G SGSN 502時,訊息流程600可以應用至分開的及專用的SGSN 118(舉例而言,請參見TS 23.060子條款16.2.1.2.2)。可以藉由網路100或是藉由不一定包含此處與網路100相關說明之協定的網路,以實施資料流程600。
在所示的實例中,UE 102、BSS 404、2G SGSN 602、3G SGSN 604、SRNS 504、及MSC 208根據系統間移交訊息606而通訊。UE 102傳送暫停訊息608給BSS 404。BSS 404傳送暫停訊息610給2G SGSN 602。2G SGSN 602傳送暫停請求訊息612給3G SGSN 604。3G SGSN 604傳送SRNS內容請求訊息614給SRNS 504。SRNS 504傳送SRNS內容響應訊息616給3G SGNS 604。3G SGSN 604傳送暫停響應訊息618給2G SGSN 602。2G SGSN 602傳送暫停確認訊息620給BSS 404。BSS 404接著傳送回復訊息622給2G SGSN 602。2G
SGSN 602傳送暫停非確認訊息624給BSS 404。BSS 404傳送通道釋放訊息626給UE 102。UE 102傳送路由區更新請求628給2G SGSN 602。
在上述實例中,3G SGSN 604可以是被建立的或是第一SGSN 118,舉例而言,UE 102登錄至3G SGSN 604及MME 110(例如,當ISR被致動時),以及,CSFB目標胞是由3G SGSN 604服務之UTRAN胞202。在CS呼叫期間,UE 102執行從UTRAN至GERAN的CS系統間移交以及暫停訊息608、610可由2G SGSN 602接收。在各式各樣的實例中,假使經由SGSN 118的回復涉及RAT間改變或是假使涉及一個以上的SGSN 118時,以及,假使網路100以立即改向至E-UTRAN而執行釋放時,則經由SGSN 118的回復不會工作。
在參考圖2及根據訊息流程300、400、500、600中之一或更多的舉例說明的情境中,UE 102是在E-UTRAIN胞206中。登錄至MME 110及登錄至SGSN 118和ISR的UE 102被致動。UE 102送出擴充服務請求訊息給MME 110,以啟始CSFB呼叫或是回應用於CSFB呼叫的傳呼。網路100及/或架構200對UTRAN目標胞202執行CSFB。對於UTRAN目標胞202中的PS服務,UE 102可供利用。在此情形中,MME 110不會將UE 102內容標誌為暫停。
UTRAN目標胞202由SGSN 118服務以及在登錄的路由區識別(RAI)之下。在此實例中,UE 102不會啟始
路由區更新程序。ISR維持致動。在各式各樣的實例中,假使RAI因CSFB而改變,則即使操作的網路模式(NMO)是NMO I,UE 102仍然執行正常的路由區更新;在此實例中,假使SGSN 118未改變,則ISR維持致動。
在CS呼叫期間,UE執行未CS移交給未支援DTM的GERAN胞204。UE 102啟始暫停程序。假使GERAN胞204由2G/3G SGSN 502服務時,2G/3G SGSN 502啟始朝向S-GW/PDN-GW 306之封包承載的暫停。假使GERAN胞204由不同的SGSN 118(例如,2G SGSN 602)服務時,SGSN 118將暫停請求遞送給2G/3G SGSN 502,2G/3G SGSN 502啟始朝向S-GW/PDN-GW 306之封包承載的暫停。在此情形中,MME 1120不會被告知暫停。
當CS呼叫被釋放時,MSC伺服器208通知BSS 404的BSC:例如藉由提供CSFB標示而將呼叫啟始化為CSFB呼叫。BSC利用此資訊及在通道釋放訊息中包含標示以選取E-UTRAN胞206。標示是立即選取E-UTRAN胞206。在傳送通道釋放訊息給UE 102之前,BSC可以傳送回復訊息給SGSN 118,但是,由於RAT間的改變(例如,在PS移交給UTRAN目標胞202之後),所以,回覆是不可能的且SGSN 118以回復未確認訊息回應。因此,BSC也在通道釋放訊息中啟始GPRS回復未成功。在各式各樣的實例中,假使GERAN胞204由不同於3G SGSN 604之2G SGSN 602服務,則2G SGSN 602不會遞
送暫停請求給3G SGSN 604,但以回復未確認訊息來回應。
UE 102接收通道釋放訊息。UE 102的無線電資源(RR)控制對胞選取資訊反應以及觸發E-UTRAN胞206的選取。此外,RR通知UE 102中的GPRS行動管理器(GMM):GPRS回復不成功。由於UE 102不在UTRAN/GERAN胞202、204中,所以,GMM不會啟始路由區更新程序以回復封包服務。取代地,UE 102可以啟始追蹤區更新程序。ISR在UE 102中仍然被致動。
TAU請求訊息由UE 102向其登錄之相同的MME 110接收。由於ISR仍然被致動及UE 102內容未被標誌為暫停,所以,MME 110僅傳送TAU接受訊息給UE 102但未啟始任何或實質上任何朝向3G SGSN 604或S-GW 306的發訊。封包服務因而維持暫停。週期追蹤區更新或其它追蹤區更新未造成封包服務的回復,在週期追蹤區更新或其它追蹤區更新期間IRS維持被致動。在這些情形中,UE 102維持較長時間的不可達到。相反地,舉例而言,假使UE 102要傳送上行鏈路使用者資料時,經由E-UTRAN的服務請求或路由區更新會造成封包服務的回復。
此處詳述之封包服務回復的失敗不可應用至實施此處所述的協定(例如,上述有關圖3的說明)之行動網路100。特別地,行動網路100包含此處所述之使ISR局部地不致動的協定。因此,在網路100或根據此處所述的協
定而使ISR不致動之其它網路無法回復封包服務的此處所述的情形中,行動網路100回復封包服務。
圖7是在舉例說明的實施例中用於儲存無線電接取技術資訊的流程圖。與行動網路100或任何其它適當的網路或系統有關地使用流程圖。
在700,例如使用者設備的收發器等使用者設備從與第一無線電接取網路通訊切換至與第二無線電接取網路通訊。
在702,以使用者設備的處理器設定使用者設備的暫存器,而啟始藉由第一無線電接取網路之封包服務。在實例中,暫存器是暫時的識別暫存器,配置成提供使用者設備的識別以用於與第一無線電存取網路重連接。在實例中,將暫存器設定成啟始封包服務是至少部份地根據暫存器的初始設定,暫存器的初始設定是根據無線電接取技術。在實例中,使用者設備及第一無線電接取網路配置成根據無線電接取技術而通訊。在實例中,假使第二無線電接取網路是全球行動通訊系統(GSM)無線電接取網路中至少之一與切換是藉由改向釋放及胞改變次序中至少之一時,則不執行設定暫存器以啟始封包服務。
在704,使用者設備的處理器根據暫存器及協定而規劃請求。
在706,以使用者設備傳送請求給第一無線電接取網路的核心網路節點,以至少部份地根據暫存器而回復與第一無線電接取網路的通訊。在實例中,請求是至少部份地
根據行動網路的地理特徵。在實例中,行動網路的地理特徵是網路的追蹤區以及其中請求是以第一無線電接取網路執行追蹤區更新程序的請求。
在708,以第一無線電接取網路回復通訊至少部份地根據封包服務。在實例中,回復與第一無線電接取網路的通訊至少部份地根據封包服務。
圖8是方塊圖,顯示根據某些舉例說明的實施例之機器800的組件,機器800能夠從機器可讀取的媒體(例如,機器可讀取的儲存媒體)讀取指令及執行此處所述的任一或更多方法。具體而言,圖8顯示以電腦系統的形式為例之機器800的圖形表示,在機器800內,用於促使機器800執行此處所述的任一或更多方法之指令824(例如軟體)被執行。在替代實施例中,機器800作為單獨裝置操作或是可連接(例如網路連接)至其它機器。在網路化部署中,機器800以主從網路環境中的伺服器機器或是客戶機器容量操作,或是在點對點(或分散式)網路環境中作為點機器。機器800可為伺服器電腦、客戶端電腦、個人電腦(PC)、平板電腦、膝上型電腦、筆記型電腦、機上盒(STB)、個人數位助理(PDA)、行動電話、智慧型手機、網路設備、網路路由器、網路交換機、網路橋接器、或是任何能夠順序地執行指令824或是指定由機器採取的動作之機器。此外,雖然僅顯示單一機器,但是,「機器」一詞將被視為包含個別地或聯合地執行指令824以執行此處所述的任一或更多方法之機器的集合。
機器800包含配置成經由匯流排808而彼此通訊之處理器802(例如,中央處理單元(CPU)、圖形處理單元(GPU)、數位訊號處理器(DSP)、特定應用積體電路(ASIC)、射頻積體電路(RFIC)、或是其任何適當結合)、主記憶體804、及靜態記憶體806。機器800又包含圖形顯示器810(例如,電漿顯示面板(PDP)、發光二極體(LED)顯示器、液晶顯示器(LCD)、投影機、或是陰極射線管(CRT))。機器800也包含文數字輸入裝置812(例如,鍵盤)、游標控制裝置814(例如,滑鼠、觸控面板、軌跡球、搖桿、動作感測器、或其它指向設備)、儲存單元816、訊號產生裝置818(例如,揚音器)、及網路介面裝置820。
儲存單元816包含機器可讀取的媒體822,在機器可讀取的媒體822上,儲存有具體實施任一或更多此處所述的方法或功能之指令824(例如,軟體)。在指令824由機器800執行期間,指令824也完全地或至少部份地駐於主記憶體804內、處理器802內(例如,在處理器皂快取記憶體內)、或是二者。因此,主記憶體804及處理器802被視為機器可讀取的媒體。指令824可經由網路介面裝置820而在網路826上被傳送或接收。網路介面裝置820可以是有線的收發器或是無線收發器,包含例如行動網路100等蜂巢式或行動網路中使用的一或更多收發器。
如此處所使用般,「記憶體」一詞意指能夠暫時地或永久地儲存資料之機器可讀取的媒體,以及可被視為包含
但不限於隨機存取記憶體(RAM)、唯讀記憶體(ROM)、緩衝器記憶體、快閃記憶體、及快取記憶體。雖然機器可讀取的媒體722在舉例說明的實施例中顯示為單一媒體,但是,「機器可讀取的媒體」一詞應視為包含能夠儲存指令的單一媒體或多個媒體(例如,集中式或分散式資料庫,或是相關連的快取記憶體及伺服器)。「機器可讀取的媒體」一詞也被用以包含任何能夠儲存由機器(例如機器700)執行的指令(例如軟體)之媒體或多個媒體的組合,以致於當由機器之一或更多處理器(例如,處理器702)執行指令時,指令促使機器執行此處所述的任一或更多方法。因此,「機器可讀取的媒體」一詞意指單一儲存設備或裝置、以及包含多個儲存設備或裝置之「雲端為基礎的」儲存系統或儲存網路。「機器可讀取的媒體」一詞因而將被視為包含但不限於固態記憶體、光學媒體、磁性媒體、或其任何適當的組合之形式的一或更多資料貯存器。
在本說明書中,複數實例可以實施說明成單數實例之複數組件、操作、或結構。雖然一或更多方法的個別操作顯示成及說明成分別的操作,但是,可以同時執行一或更多個別的操作,以及,並未要求操作依所示的次序執行。在配置實例中呈現為分別的組件之結構及功能可以實施成結合的結構或組件。類似地,呈現為單一組件的結構及功能可以實施成分別的組件。這些及其它變異、修改、添加、及改進都落在此處之標的之範圍內。
某些實施例於此說明成包含邏輯或是一些組件、模組、或機構。模組可以構成軟體模組(例如,具體實施於機器可讀取的媒體上或是傳送訊號中的碼)或是硬體模組。「硬體模組」是能夠執行某些操作的實體單元以及可以以某實體方式規劃或配置。在各式各樣舉例說明的實施例中,一或更多電腦系統(例如,單機電腦系統、客戶端電腦系統、或伺服器電腦系統)或電腦系統的一或更多硬體模組(例如,處理器或處理器組)可以由軟體(例如,應用或應用部份)規劃為運轉而執行此處所述的某些操作之硬體模組。
在某些實施例中,可以以機械方式、電子方式、或其任何適當的組合,實施硬體模組。舉例而言,硬體模組包含永久地配置成執行某些操作的專用電路或邏輯。舉例而言,硬體模組可為特別用途處理器,例如場可編程閘陣列(FPGA)或是ASIC。硬體模組也包含由軟體暫時配置成執行某些操作之可編程邏輯或電路。舉例而言,硬體模組包含包涵在一般用途處理器或其它可編程處理器內的軟體。將瞭解,依成本及時間考量而決定以機械方式、以專用及永久配置的電路、或是以暫時配置的電路(例如,由軟體規劃)來實施硬體模組。
因此,「硬體模組」之詞句應被視為涵蓋有形實體,其為實體構造成、永久配置成(例如硬接線成)、或是暫時配置成(例如,被編程成)以某方式操作或是執行此處所述的某些操作。如同此處所使用般,「硬體實施的模
組」意指硬體模組。考慮硬體模組被暫時配置(例如被編程)的實施例,各硬體模組無需在任一時刻被配置或是舉例說明。舉例而言,在硬體模組包括由軟體配置成變成特定用途的處理器之一般用途處理器的情形中,一般用途處理器可以在不同時間配置成分別不同的特定用途處理器(例如,包括不同的硬體模組)。軟體因而將處理器規劃成例如在一時刻構成特定的硬體模組以及在不同的時刻構成不同的硬體模組。
硬體模組對其它模組提供資訊及接收資訊。因此,所述的硬體模組應被視為通訊上耦合。在多個硬體模組同時存在的情形中,經由二或更多硬體模組之間的訊號傳輸(例如,在適當的電路及匯流排上),取得通訊。在多個體模組在不同時間被配置或舉例說明的實施例中,舉例而言,經由儲存及取出多個硬體模組存取的記憶體結構中的資訊,可以取得這些硬體模組之間的通訊。舉例而言,一硬體模組執行操作及將該操作的輸出儲存在其通訊上耦合的記憶體裝置中。另外的硬體模組接著在稍後的時間存取記憶體裝置以取出及處理儲存的輸出。硬體模組也開始與輸入或輸出裝置的通訊,以及,在資源上操作(例如,資訊收集)。
至少部份地藉由被暫時配置(例如由軟體)或永久配置成執行相關操作之一或更多處理器,執行此處所述的方法實例之各種操作。無論是暫時或永久地配置,這些處理器都構成可以運作而執行此處所述的一或更多操作或功能
之處理器實施模組。如此處所使用般,「處理器實施模組」意指使用一或更多處理器實施的硬體模組。
類似地,此處所述的方法至少部份地由處理器實施,處理器是硬體的實例。舉例而言,方法的至少某些操作可以由一或更多處理器或處理器實施模組執行。此外,一或更多處理器也可運作以支援「雲端計算」環境中相關的操作之性能或是作為「軟體即服務(SaaS)」。舉例而言,以電腦組(以包含多個處理器的多個機器為例)執行至少某些操作,而這些操作是可經由網路(例如網際網路)及經由一或更多適當的介面(例如,應用程式介面(API))接取的。
某些操作的性能可以分散在一或更多處理器中,而不是僅駐於單一機器內,而是部署於多個機器中。在某些舉例說明的實施例中,一或更多處理器或是處理器實施模組可以位於單一地理位置(例如,在住家環境中、在辦公室環境中、或是在伺服器場中)。在其它舉例說明的實施例中,一或更多處理器或處理器實施模組可以散佈於多個地理位置。
上述詳細說明包含參考形成詳細說明的一部份之附圖。圖式係藉由圖示以顯示實施發明之具體實施例。這些實施例於此也稱為「實例」。這些實例包含所示或所述的元件以外的元件。但是,本發明人也想到僅設置那些顯示或說明的元件之實例。此外,參考此處所示或所述之特定實例(或是其一或更多態樣)、或是其它實例有關(或是
其一或更多態樣),本發明人也思及使用所示或所述(或是其一或更多態樣)的那些元件之任何組合或變更之實例。
在本文獻中,如專利文獻中常用般,使用「一(a或an)」一詞以包含一或一個以上,而與「至少之一」或是「一或更多」的任何例子或使用是相獨立的。在本文獻中,除非另外指明,否者「或(or)」一詞是用以意指非排它的,或是,使得「A或B」包含「A但無B」、「B但無A」、及「A及B」。在本文獻中,「包含(including)」及「在其中(in which)」等詞與分別的詞「包括(comprising)」及「其中(wherein)」是一般英文上同義的。而且,在後述的申請專利範圍中,「包含(including)」及「包括(comprising)」是開放式的,亦即,包含申請專利範圍請求項中此詞之後列出的那些元件之外的元件之系統、裝置、物件、成分、公式、或處理,仍然被視為落在該申請專利範圍請求項的範圍內。此外,在後述的申請專利範圍中,「第一」、「第二」、及「第三」等等僅作為標示,而非要對它們的物件施加數字要求。
上述說明是說明性的而非限制性的。舉例而言,上述實例(或是其一或更多態樣)可以彼此結合地使用。舉例而言,具有此技藝的一般技術者在審視上述說明之後,可以使用其它實施例。提供摘要以符合37 C.F.R.§1.72(b),以使讀者能夠快速地確定技術揭示的本質。須瞭解,摘要不應用以解釋或限定申請專利範圍的範圍或意
義。而且,在上述詳細說明中,各式各樣的特點可以分組在一起以使揭示流暢。這不應被解釋為未請求的揭示特點對任何請求項是必要的。反而,發明的標的在於少於特定揭示的實施例之所有特點。因此,後附的申請專利範圍於此併入詳細說明中,以各請求項基於其本身各它自己分別的實施例,以及,可以思及這些實施例以不同的結合或更換而彼此結合。應參考後附的申請專利範圍、及伴隨這些請求項的全均等範圍,而決定發明的範圍。
100‧‧‧行動網路
102‧‧‧使用者設備
104‧‧‧無線電介面
106‧‧‧演進的全球行動電信系統陸面無線電接取網路
108‧‧‧S1-MME(行動管理實體)鏈路
110‧‧‧行動管理實體
112‧‧‧S1-U鏈路
114‧‧‧服務閘道器
116‧‧‧S3鏈路
118‧‧‧服務一般封包無線電子系統支援節點
120‧‧‧S4鏈路
122‧‧‧S10鏈路
124‧‧‧S6a鏈路
126‧‧‧高速串列介面節點
128‧‧‧S12鏈路
130‧‧‧全球行動電信系統陸面無線電接取網路
132‧‧‧通用封包無線電系統演進無線電接取網路
134‧‧‧S5鏈路
136‧‧‧公眾資料網路閘道器
138、146‧‧‧鏈路
140‧‧‧策略及改變規則功能節點
142‧‧‧SGi鏈路
144‧‧‧操作者的IP服務
Claims (21)
- 一種配置於inter-RAT行動之使用者設備(UE),該使用者設備包括:收發器與處理電路,配置以:當該使用者設備在閒置模式中時,接收發訊以致動閒置模式發訊縮減(ISR)於inter-RAT胞重選期間之隨後使用;當ISR為致動時,依據ISR而執行inter-RAT胞重選,當目標胞為非E-UTRAN胞時,該inter-RAT胞重選用以建立電路切換(CS)無線發訊連接於該目標胞中;傳送發訊以暫停封包切換(PS)服務,該使用者設備具有連接非E-UTRAN胞發訊;當該使用者設備返回E-UTRAN胞時,於ISR被致動以回復PS服務時,傳送發訊以啟始追蹤區更新(TAU)程序;以及基於PS服務之不成功回復,在返回至該E-UTRAN胞之後,啟始另一TAU程序之前不致動ISR以回復PS服務。
- 如申請專利範圍第1項之使用者設備,其中該使用者設備係配置成在啟始該TAU程序前,藉由設定使用於該使用者設備的下一更新(TIN)參數中的暫時識別暫存器為標示P-暫時行動用戶識別(P-TMSI)的值,而局部不致動ISR,其中,該P-TMSI參考該inter-RAT胞重選前所建立 之RAT。
- 如申請專利範圍第2項之使用者設備,更包含一暫存器,其中,該暫存器係配置成儲存該P-TMSI。
- 如申請專利範圍第2項之使用者設備,其中用以依據ISR執行該inter-RAT胞重選,該使用者設備係配置成當重選對應於在最後RAU程序藉由該使用者設備所儲存之路由區識別之路由區的GERAN胞,以及使用於該使用者設備的下一更新(TIN)參數中的暫時識別被設定為標示RAT相關暫時行動用戶識別(P-TMSI)的值時,制止啟始路由區更新(RAU)程序。
- 如申請專利範圍第4項之使用者設備,其中用以致動ISR的該發訊係於部分之RAU或TAU程序的RAU或TAU接收訊息中被接收。
- 如申請專利範圍第5項之使用者設備,其中,當返回至E-UTRAN胞之該使用者設備藉由發送至MME(行動管理實體)的TAU請求訊息而被啟始時,該發訊用以回復該PS服務。
- 如申請專利範圍第4項之使用者設備,其中,當該非E-UTRAN目標胞為GERAN胞時,該使用者設備係配置成,該使用者設備更配置成於該GERAN胞中啟始CS呼叫,其中,當該使用者設備不支援包含CS服務與PS服務的同時使用的雙傳送模式(DTM)時,該使用者設備更配置成傳送發訊以暫停對該使用者設備的PS服務。
- 如申請專利範圍第4項之使用者設備,其中,於該使用者設備具有連接非E-UTRAN胞發訊之用以暫停PS服務的該發訊包含暫停請求,其中,於該暫停請求之傳送前,該使用者設備係配置成傳送E-UTRAN胞中的擴展服務請求訊息以啟始CS後降(CSFB)呼叫,其中,該暫停請求之傳送依據是否該CSFB被執行至GERAN或UTRAN目標胞,以及藉由該暫停請求傳達之資訊依據該ISR是否於該CSFB呼叫前被致動。
- 如申請專利範圍第4項之使用者設備,其中,該使用者設備係配置成當PS服務於啟始TAU程序之前不成功地回復時,在返回至該E-UTRAN胞之後,不致動ISR以回復PS服務。
- 如申請專利範圍第2項之使用者設備,其中,該非E-UTRAN目標胞為UTRAN胞或GERAN胞。
- 如申請專利範圍第10項之使用者設備,其中,當該非E-UTRAN目標胞為GERAN胞時,該使用者設備係配置成傳送發訊以暫停該PS服務,該使用者設備係在專用模式中且具有連接該GERAN胞無線電資源(RR)發訊。
- 如申請專利範圍第2項之使用者設備,其中,該非E-UTRAN目標胞以及與該使用者設備具有發訊連接之該非E-UTRAN胞為不同之非E-UTRAN胞。
- 如申請專利範圍第2項之使用者設備,其中,該非E-UTRAN目標胞以及與該使用者設備具有發訊連接之該非E-UTRAN胞為相同之非E-UTRAN胞。
- 如申請專利範圍第2項之使用者設備,其中,當該ISR於CSFB呼叫前被致動時,該使用者設備係配置成接收來自行動管理實體的發訊以暫停該PS服務。
- 如申請專利範圍第2項之使用者設備,更包含二或更多個天線,係配置成與提供該使用者設備發訊連接之胞的eNBs通訊。
- 一種非暫態電腦可讀取儲存媒體,儲存用於藉由使用者設備(UE)的一或多個處理器執行之指令,以配置該使用者設備以執行用於inter-RAT胞重選之操作,該操作用以配置該一或多個處理器以配置該使用者設備以:當該使用者設備在閒置模式中時,接收發訊以致動閒置模式發訊縮減(ISR)於inter-RAT胞重選期間之隨後使用;當ISR為致動時,依據ISR而執行inter-RAT胞重選,當目標胞為非E-UTRAN胞時,該inter-RAT胞重選用以建立電路切換(CS)無線發訊連接於該目標胞中;傳送發訊以暫停封包切換(PS)服務,該使用者設備具有連接非E-UTRAN胞發訊;當該使用者設備返回E-UTRAN胞時,於ISR被致動以回復PS服務時,傳送發訊以啟始追蹤區更新(TAU)程序;以及 基於PS服務之不成功回復,在返回至該E-UTRAN胞之後,啟始另一TAU程序之前不致動ISR以回復PS服務。
- 如申請專利範圍第16項之非暫態電腦可讀取儲存媒體,其中該使用者設備係配置成在啟始該TAU程序前,藉由設定使用於該使用者設備的下一更新(TIN)參數中的暫時識別暫存器為標示P-暫時行動用戶識別(P-TMSI)的值,而局部不致動ISR,其中,該P-TMSI參考該inter-RAT胞重選前所建立之RAT。
- 如申請專利範圍第17項之非暫態電腦可讀取儲存媒體,其中用以依據ISR執行該inter-RAT胞重選,該使用者設備係配置成當重選對應於在最後RAU程序藉由該使用者設備所儲存之路由區識別之路由區的GERAN胞,以及使用於該使用者設備的下一更新(TIN)參數中的暫時識別被設定為標示RAT相關暫時行動用戶識別(P-TMSI)的值時,制止啟始路由區更新(RAU)程序。
- 一種配置於inter-RAT胞重選之使用者設備(UE),該使用者設備包括:收發器與處理電路,配置以:於inter-RAT胞重選之後,傳送發訊以暫停封包切換(PS)服務,該使用者設備具有連接非E-UTRAN胞發訊;當該使用者設備返回E-UTRAN胞時,於閒置模式發 訊縮減(ISR)被致動以回復PS服務時,啟始追蹤區更新(TAU)程序;以及基於當該使用者設備返回該E-UTRAN胞時,PS服務不被回復,該使用者設備係配置成在返回至該E-UTRAN胞之後不致動ISR,並在啟始另一TAU程序前,藉由設定使用於該使用者設備的下一更新(TIN)參數中的暫時識別暫存器為標示P-暫時行動用戶識別(P-TMSI)的值,而回復PS服務。
- 如申請專利範圍第19項之使用者設備,更包含用以儲存該P-TMSI的記憶體,其中該P-TMSI參考該inter-RAT胞重選前所建立之RAT。
- 如申請專利範圍第20項之使用者設備,於inter-RAT胞重選前係配置以:當該使用者設備在閒置模式中時,接收發訊以致動ISR於inter-RAT胞重選期間之隨後使用;當ISR為致動時,依據ISR而執行inter-RAT胞重選,當目標胞為非E-UTRAN胞時,該inter-RAT胞重選用以建立電路切換(CS)無線發訊連接於該目標胞中。
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