公开(公告)号：US20160135084A1

公开(公告)日：2016-05-12

申请号：US14816968

申请日：2015-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Seungjune YI ,  Sunyoung LEE

IPC: H04W28/06 ,  H04W76/02

CPC classification number: H04W76/023 ,  H04W12/02 ,  H04W76/14 ,  H04W92/18

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for indicating a ciphering indication for a sidelink radio bearer in a D2D communication system, the method comprising: receiving a PDCP SDU when the UE is configured to communicate with one or more other UEs directly; deciding whether to apply ciphering or not for the received PDCP SDU; generating a PDCP data PDU including the received PDCP SDU and a PDCP PDU header including one or more fields for ciphering parameters; and transmitting the PDCP data PDU to the one or more other UEs over PC5 interface, wherein at least one of the one or more fields for ciphering parameters is set to a fixed value when the ciphering is not applied for the received PDCP SDU.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统。 更具体地说，本发明涉及一种用于指示D2D通信系统中的侧向无线承载的加密指示的方法和装置，该方法包括：当UE被配置为与一个或多个其他UE进行通信时，接收PDCP SDU 直; 决定是否对接收到的PDCP SDU应用加密; 生成包括接收到的PDCP SDU的PDCP数据PDU和包括用于加密参数的一个或多个字段的PDCP PDU报头; 以及通过PC5接口将所述PDCP数据PDU发送到所述一个或多个其他UE，其中，当对所接收的PDCP SDU不应用加密时，用于加密参数的所述一个或多个字段中的至少一个被设置为固定值。

公开(公告)号：US20160128093A1

公开(公告)日：2016-05-05

申请号：US14818112

申请日：2015-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Sunyoung LEE ,  Seungjune YI

IPC: H04W72/14 ,  H04W28/06

CPC classification number: H04W72/14 ,  H04W28/065

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for avoiding padding only MAC PDU in a D2D communication system, the method comprising: receiving a sidelink grant from a base station (BS) when the TX UE communicates with a receiving UE (RX UE) directly; checking size of the received sidelink grant; and transmitting a Medium Access Control Protocol Data Unit (MAC PDU) including at least one byte of Radio Link Control Service Data Unit (RLC SDU) if the size of received sidelink grant is larger than a minimum size of MAC PDU including only MAC header and Radio Link Control (RLC) header for Sidelink Traffic Channel (STCH).

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统。 更具体地说，本发明涉及一种用于在D2D通信系统中避免仅填充MAC PDU的方法和装置，所述方法包括：当所述TX UE与接收UE进行通信时，从基站（BS）接收边界准许 RX UE） 检查接收到的边界授权的大小; 以及如果所接收的侧向链路授权的大小大于仅包括MAC报头的MAC PDU的最小大小，则发送包括无线电链路控制业务数据单元（RLC SDU）的至少一个字节的媒体接入控制协议数据单元（MAC PDU） 用于Sidelink业务信道（STCH）的无线链路控制（RLC）报头。

公开(公告)号：US20160065700A1

公开(公告)日：2016-03-03

申请号：US14473316

申请日：2014-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Seungjune YI ,  Sunyoung LEE

IPC: H04L29/06

CPC classification number: H04L69/04 ,  H04L1/1841 ,  H04L69/14 ,  H04W12/00 ,  H04W12/02 ,  H04W80/00 ,  H04W80/02

Abstract: PDCP operations in a wireless communication system supporting dual connectivity are disclosed. According to this scheme, when the PDCP of the UE receives PDCP PDU from two RLCs, the PDCP reordering is performed first on the received PDCP PDU. Then, deciphering and decompressing are performed after the PDCP reordering.

Abstract translation: 公开了支持双连接的无线通信系统中的PDCP操作。 根据该方案，当UE的PDCP从两个RLC接收到PDCP PDU时，首先在接收的PDCP PDU上执行PDCP重新排序。 然后，在PDCP重新排序之后执行解密和解压缩。