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Keeping the UE awake

專(zhuān)利號(hào)
US11611949B2
公開(kāi)日期
2023-03-21
申請(qǐng)人
IPLA HOLDINGS INC.（US NY New York）
發(fā)明人
Michael F. Starsinic; Catalina Mihaela Mladin; Rocco Di Girolamo; Hongkun Li; Chonggang Wang; Zhuo Chen; Dale N. Seed
IPC分類(lèi)
H04W8/02; H04W68/02; H04W52/02; H04W76/25; H04W4/70; H04W76/28; H04W76/27; H04W80/06; H04W88/02
技術(shù)領(lǐng)域
ue,scef,mcn,m2m,scs,may,psm,data,mme,in
地域： NY NY New York

摘要

When mobile terminated devices sleep, the devices might not be reachable when needed, for instance when the device is a recipient of data from a third party server. As described herein, a third party application server may inform the network that it has data to send to a particular UE or group of UEs. In an example, the mobile core network (MCN) may use information from the third party server to ensure that the UE is awake when it needs to be. For example, a given UE or group of UEs can be prevented from entering a sleep state before a data transfer is completed.

說(shuō)明書(shū)

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. patent application Ser. No. 16/385,021 filed Apr. 16, 2019, which is a divisional application of U.S. patent application Ser. No. 15/678,725 filed Aug. 16, 2017, now U.S. Pat. No. 10,306,591, which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/375,695 filed Aug. 16, 2016, the disclosures of which is hereby incorporated by reference as if set forth in their entirety herein.

BACKGROUND

3GPP supports several features that enable a user equipment (UE) to sleep for longer periods in order to conserve power. Power Savings Mode (PSM) and extended Idle Mode DRX (eDRX) are features that allow the UE to sleep for relatively long periods of time. While in a “Sleep” state, a given UE typically does not listen for pages from the network, and thus the UE is unreachable for mobile terminated (MT) communications. Extended S-GW buffering is a feature where MT data that targets a UE that is in a long sleep period can be buffered in the S-GW until the UE is listening to the network. Reachability Notifications is a feature that allows a service capability server or application server (SCS/AS) to be notified when the UE is available for MT communications.

Power Savings Mode (PSM) is a UE state that was introduced in 3GPP Release 12. The PSM feature is defined in 3GPP TS 23.682 (“Architecture enhancements to facilitate communications with packet data networks and applications”) and sections 4.3.22 and 4.3.5.2 of 3GPP TS 23.401 (“General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access”).

權(quán)利要求

1
What is claimed:1. A method performed by an apparatus connected to a network, the method comprising:receiving a first data delivery request message that indicates at least one user equipment (UE) that is to be a recipient of data during a data transfer from a third party server, wherein the first data delivery request message further indicates time window information for the data transfer; andbased on the first data delivery request message, performing an action to ensure that the at least one UE is prevented from entering a first sleep mode at a time when the third party server is scheduled to perform the data transfer, wherein paging occasions for the at least one UE are limited in the first sleep mode.2. The method of claim 1, wherein the apparatus is a virtualized network function.3. The method of claim 1, wherein the first sleep mode is a Power Savings Mode (PSM) in which the at least one UE does not listen to for pages.4. The method of claim 3, wherein the action to ensure that the at least one UE is prevented from entering the PSM at the time when the third party server is scheduled to perform the data transfer comprises adjusting one of a tracking area update timer or an active timer.5. The method of claim 3, wherein the action to ensure that the at least one UE is prevented from entering the PSM at the time when the third party server is scheduled to perform the data transfer comprises rejecting a timer value that is proposed by the at least one UE during a tracking area update.6. The method of claim 3, wherein the action to ensure that the at least one UE is prevented from entering the PSM at the time when the third party server is scheduled to perform the data transfer comprises sending the time window information to a mobility management function.7. The method of claim 1, wherein the first sleep mode is an extended idle mode discontinuous reception (eDRX) feature.8. The method of claim 7, wherein the action to ensure that the at least one UE is prevented from using the eDRX feature at the time when the third party server is scheduled to perform the data transfer comprises informing the at least one UE that the eDRX feature is disabled.9. The method of claim 7, wherein the action to ensure that the at least one UE is prevented from using the eDRX feature at the time when the third party server is scheduled to perform the data transfer comprises sending the time window information to a mobility management function.10. The method of claim 1, wherein the apparatus is a mobility management function.11. The method of claim 1, wherein the first data delivery request message is received from a subscriber server.12. The method of claim 1, wherein the apparatus is a subscriber server.13. The method of claim 1, wherein the first data delivery request message is received from an exposure function.14. A method performed by an apparatus connected to a network, the method comprising:receiving a first data delivery request message that indicates at least one user equipment (UE) that is to be a recipient of data during a data transfer from a third party server, wherein the first data delivery request message further indicates time window information for the data transfer; andbased on the first data delivery request message, performing an action to ensure that the at least one UE is prevented from releasing a radio resource control (RRC) Connection that is usable for the data transfer.15. The method of claim 14, wherein the apparatus is a virtualized network function.16. The method of claim 14, wherein the apparatus is a mobility management function.17. The method of claim 14, wherein the first data delivery request message is received from a subscriber server.18. The method of claim 14, wherein the action to ensure that the at least one UE is prevented from releasing the RRC Connection that is usable for the data transfer comprises sending a message to a base station that identifies the at least one UE and provides time information.19. The method of claim 18, wherein the message instructs the base station to maintain the RRC connection for a duration indicated in the time window information.20. The method of claim 14, wherein the apparatus is a subscriber server.21. The method of claim 14, wherein the first data delivery request message is received from an exposure function.22. The method of claim 14, wherein the action to ensure that the at least one UE is prevented from releasing the RRC Connection that is usable for the data transfer comprises sending the time window information to a mobility management function.
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