公开(公告)号：US10256986B2

公开(公告)日：2019-04-09

申请号：US14821304

申请日：2015-08-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Balaji Srinivasan Thiruvenkatachari ,  Sivashankar Sekar

IPC: H04W28/04 ,  H04L12/18 ,  H04L1/22 ,  H04L1/00

Abstract: A system and method for recovering missed Multimedia Broadcast and Multicast Service (MBMS) data frames in a Multicast Broadcast Single Frequency Network (MBSFN) is provided. The method includes storing a first set of Service Data Units (SDUs) in a first Radio Link Control (RLC) buffer, wherein the first set of SDUs is broadcasted using a first set of MBMS data frames from a first eNB, storing a second set of SDUs in a second RLC buffer, wherein the second set of SDUs is broadcasted using a second set of MBMS data frames from a second eNB, and comparing the first set of MBMS data frames associated with the first set of SDUs with the second set of MBMS data frames associated with the second set of SDUs to recover the missed MBMS data frame in the first set of RLC SDUs received from the first eNB.

公开(公告)号：US10321513B2

公开(公告)日：2019-06-11

申请号：US15239496

申请日：2016-08-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vinay Kumar Shrivastava ,  Ankit Srivastav ,  Sivashankar Sekar

IPC: H04W76/28 ,  H04W28/02 ,  H04W76/15 ,  H04W28/08 ,  H04W72/14 ,  H04W36/00

Abstract: A user equipment (UE) configured with an uplink (UL) split bearer and method for packet data convergence protocol (PDCP) control protocol data unit (PDU) transmission by the UE are provided. The method includes triggering, by the UE, a PDCP control PDU; determining, by the UE, whether a UL grant is available for a master evolved node B (eNB); transmitting, by the UE, the PDCP control PDU on a link associated with the master eNB, if the UL grant is available for the master eNB; and transmitting, by the UE, the PDCP control PDU on a link associated with a secondary eNB, when the UL grant is unavailable for the master eNB.