Paging enhancement for extended DRX in cellular systems

    公开(公告)号:US10455505B2

    公开(公告)日:2019-10-22

    申请号:US15566201

    申请日:2015-12-24

    IPC分类号: H04W52/02 H04W76/28 H04W68/02

    摘要: Technology described herein relates to systems, methods, and computer readable media to implement extended Discontinuous Reception (eDRX) for user equipments (UEs). A Mobility Management Entity (MME) can be aware of the starting time and length of an eDRX cycle of a UE so that the MME can send a paging message for the UE to an evolved Node B (eNB) shortly ahead of a Paging Occasion (PO). In some examples, more than one PO can be included within an eDRX cycle. An eDRX timer can be used to control the duration of waking times and, if desired, to maintain legacy compatibility. Additional examples provide a way for the MME to update calculations regarding the starting time and length of eDRX cycle of the UE such that the MME will continue to be apprised of when the UE will be reachable when the UE moves between cells.

    Access control mechanisms for D2D discovery and communication

    公开(公告)号:US10681525B2

    公开(公告)日:2020-06-09

    申请号:US15507199

    申请日:2015-06-30

    摘要: Technology to support access-class-barring (ACB) skipping for commercial and public-safety user equipments (UEs) is disclosed. A cellular mobile network experiencing congestion at the core network level can be configured to send a communication to UEs indicating that ACB may be skipped by UEs seeking to establish device-to-device (D2D) communication using a first mode of D2D resource allocation wherein D2D resources are allocated by the network. In addition, the network can be configured to send a communication indicating that a second mode of D2D resource allocation wherein D2D resources are allocated by the UEs may be used as an alternative to the first mode. The network may also indicate that the second mode can be used as a fallback when current ACB parameters indicate that use of the first mode is not currently permitted.