公开(公告)号：US20130051350A1

公开(公告)日：2013-02-28

申请号：US13665590

申请日：2012-10-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Bin CHANG ,  Agiwal ANIL ,  Jung-Je SON ,  Young-Kyo BAEK

IPC: H04W72/04

CPC classification number: H04L1/1896 ,  H04L2212/00 ,  H04W28/04 ,  H04W28/065 ,  H04W80/02 ,  H04W80/04 ,  H04W80/12

Abstract: An apparatus and method for generating a Media Access Control (MAC) Protocol Data Unit (MPDU) in a wireless communication system are provided. The method includes reconstructing at least one MAC Service Data Unit (MSDU) according to scheduling information of the MAC layer and generating at least one MAC Protocol Data Unit (MPDU) data portion, adding control information to each MPDU data portion and generating at least one MPDU payload, the control information comprising MSDU information constituting each MPDU data portion, adding a General MAC Header (GMH) to each MPDU payload and generating at least one MPDU, the GMH including length information on the MPDU and Connection IDentifier (CID) information, and transmitting the MPDU to a receive end.

Abstract translation: 提供了一种用于在无线通信系统中生成媒体接入控制（MAC）协议数据单元（MPDU）的装置和方法。 该方法包括根据MAC层的调度信息重构至少一个MAC服务数据单元（MSDU），并生成至少一个MAC协议数据单元（MPDU）数据部分，将控制信息添加到每个MPDU数据部分，并产生至少一个 MPDU有效载荷，所述控制信息包括构成每个MPDU数据部分的MSDU信息，将通用MAC头（GMH）添加到每个MPDU有效载荷并生成至少一个MPDU，所述GMH包括关于MPDU和连接标识符（CID）信息的长度信息， 并将MPDU发送到接收端。

公开(公告)号：US20170111925A1

公开(公告)日：2017-04-20

申请号：US15317711

申请日：2015-06-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Anshuman NIGAM ,  Agiwal ANIL ,  Jungsoo JUNG

IPC: H04W72/12 ,  H04W72/04

Abstract: The present disclosure relates to a 5G or pre-5G communication system which will be provided in order to support a higher data transmission rate than a 4G communication system such as LTE. In addition, a method for transmitting and receiving signals in a terminal of a mobile communication system, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, control information including scheduling information about a plurality of subframes; transmitting data to the base station or receiving data from the base station through resources decided based on the control information; and receiving, from the base station, feedback information about the transmitted data, or transmitting, to the base station, feedback information about the received data. According to one embodiment of the present specification, there is an effect of reducing overhead of a base station, a resource and a channel according to resource allocation by performing, at one time, resource allocation for a plurality of transmission time intervals. In addition, communication efficiency is increased by performing, in one subframe, resource allocation for one or more transmission time intervals, and when feedback thereon is received, performing an operation for each of a plurality of processes.

公开(公告)号：US20170374549A1

公开(公告)日：2017-12-28

申请号：US15540714

申请日：2016-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Agiwal ANIL ,  Rajavelsamy RAJADURAI ,  Youngbin CHANG

IPC: H04W12/06 ,  H04W8/18 ,  H04L29/06 ,  H04W4/02 ,  H04W76/02 ,  H04W12/04

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The various embodiments of the present invention disclose a method of secured transmission and reception of discovery message in device to device (D2D) communication system. According to one embodiment, a transmitting user equipment (UE) receives a ProSe group key (PGK) from a Prose function to perform a D2D communication in a D2D public safety group. The transmitting UE then derives a ProSe traffic key (PTK) using the PGK for transmitting data packets in the D2D communication. Using the PTK, the transmitting UE further derives a Prose integrity protection key (PIK) for securing a discovery message to discover one or more receiving UEs. The transmitting UE transmits the integrity protected discovery message using the derived PIK to the receiving UE. In turn, the receiving UE transmits a response message in a secure manner by deriving a PIK using PGK configured for the receiving UE. The various embodiments of the present invention disclose a method of a terminal. According to one embodiment, the method comprises of deriving a first traffic key and a second traffic key based on a group key, deriving a first security key for securing a discovery message based on the first traffic key and a second security key for securing data packets based on the second traffic key, and transmitting the discovery message generated based on the first security key.

公开(公告)号：US20130279416A1

公开(公告)日：2013-10-24

申请号：US13920624

申请日：2013-06-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Bin CHANG ,  Taori RAKESH ,  Agiwal ANIL

IPC: H04W28/04

CPC classification number: H04L1/1848 ,  H04L1/1635 ,  H04L1/1883

Abstract: An apparatus and a method for Automatic Repeat reQuest (ARQ) feedback in a wireless communication system are provided. A method for the ARQ feedback at a receiving end includes when receiving an ARQ block from the transmitting end, checking for error in the ARQ block, when the ARQ block has no error, initializing and driving a timer used for determining whether to perform the ARQ feedback according to reception of a next ARQ block, when receiving the next ARQ block without error before the timer expires, initializing and driving the timer, and when the timer expires, performing the ARQ feedback in relation to at least one ARQ block received without error.

Abstract translation: 提供了一种用于无线通信系统中的自动重复请求（ARQ）反馈的装置和方法。 在接收端的ARQ反馈的方法包括当从发送端接收到ARQ块时，检查ARQ块中的错误，当ARQ块没有错误时，初始化和驱动用于确定是否执行ARQ的定时器 根据接收到下一个ARQ块的反馈，当在定时器到期之前无错误地接收到下一个ARQ块，初始化和驱动定时器，并且当定时器到期时，相对于接收到的至少一个ARQ块执行ARQ反馈，没有错误 。