公开(公告)号：US11019500B2

公开(公告)日：2021-05-25

申请号：US14851771

申请日：2015-09-11

Applicant: APPLE INC.

Inventor： Jing Zhu ,  Jerome Parron ,  Nageen Himayat ,  Penny Efraim-Sagi ,  Martin Kolde

IPC: H04W16/14 ,  H04W8/08 ,  H04W28/08 ,  H04W84/12 ,  H04W84/04 ,  H04W88/06 ,  H04W88/10

Abstract: Systems and methods provide cross-layer bearer splitting and cross-RAT retransmission in a RAN-based WLAN/WWAN integrated network. A link aggregation transmitter is configured to receive, from a WLAN stack lower layer protocol, a WLAN transmission confirmation signal and a WLAN congestion status, and to receive, from a WWAN stack lower layer protocol, a WWAN transmission confirmation signal and a WWAN congestion status. The link aggregation transmitter dynamically splits the bearer traffic across the WWAN link and the WLAN link based at least in part on the WLAN transmission confirmation signal, the WLAN congestion status, and the WWAN congestion status.

公开(公告)号：US10904793B2

公开(公告)日：2021-01-26

申请号：US16067685

申请日：2016-06-27

Applicant: APPLE INC.

Inventor： Shadi Iskander ,  Nageen Himayat ,  Candy Yiu ,  Alexander Sirotkin ,  Jerome Parron ,  Ofer Hareuveni ,  Umesh Phuyal ,  Penny Efraim-Sagi

IPC: H04W28/08 ,  H04W76/16 ,  H04W28/02 ,  H04W28/06 ,  H04W88/06 ,  H04W80/08 ,  H04W84/12

Abstract: Uplink (UL) data splits between LTE and WLAN can be go supported in cellular networks. The split can be UE controlled or network controlled. Both UE and network controlled bearer split architectures can be supported. The reporting of Uplink Buffer Status (BSR) and the subsequent data allocation can depend on what option is supported by the network. For UE controlled UL data splits, the UE determines a traffic split ratio between LTE and WLAN. The split can be based on local link conditions. For network controlled UL data splits, the network (e.g. a Link Aggregation Scheduler at the eNB) is responsible for making bearer split decisions. The decisions can be based on link qualities, available traffic and quality of service (QoS) requirements of associated users. The split can be based on a per bearer threshold, an eNB configured ratio, or an implicit inference based on a UL grant.