公开(公告)号：US09402239B2

公开(公告)日：2016-07-26

申请号：US14943361

申请日：2015-11-17

Applicant: LG Electronics Inc.

Inventor： Eun Sun Kim ,  Yong Ho Seok

IPC: H04W4/00 ,  H04B7/216 ,  H04W72/00 ,  H04W52/34 ,  H04W52/24 ,  H04W52/36 ,  H04W16/14 ,  H04W52/38

CPC classification number: H04W52/346 ,  H04W16/14 ,  H04W52/146 ,  H04W52/243 ,  H04W52/36 ,  H04W52/367 ,  H04W52/38 ,  H04W52/52

Abstract: A method and apparatus of controlling a transmit power in a wireless local area network is provided. A wireless device operated in a TV White Space transmits a white space map indicating a list of available channels, and transmits an extended power constraint indicating a plurality of transmission channels and a plurality of maximum transmit powers, wherein the plurality of transmission channels are selected among the list of available channels and each of the plurality of maximum transmit powers corresponds to a maximum transmit power for each of the plurality of transmission channels. Interference can be mitigated between wireless devices operated in the TV White Space.

公开(公告)号：US09197415B2

公开(公告)日：2015-11-24

申请号：US14555360

申请日：2014-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Eun Sun Kim ,  Yong Ho Seok

IPC: H04L29/06 ,  H04L9/32 ,  H04W12/02 ,  H04W12/06 ,  H04W84/12 ,  H04W72/08

CPC classification number: H04L9/3228 ,  H04L9/0637 ,  H04L9/32 ,  H04L2209/08 ,  H04L2209/42 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/06 ,  H04W72/087 ,  H04W84/12

Abstract: A method and apparatus are described for performing cipher communication in a wireless local area network system. A pseudo noise (PN) code sequence for a plaintext Medium Access Control (MAC) protocol data unit (MPDU) is obtained. An additional authentication data (AAD) is constructed by using at least one field in a header of the plaintext MPDU. A Nonce is constructed from the PN code sequence, an Address 2 field in the header of the plaintext MPDU and a Priority field in the header of the plaintext MPDU. A counter mode (CTR) is generated with cipher block chaining (CBC)-MAC Protocol (CCMP) header. Encrypted data and Message Integrity Code (MIC) are generated by using a temporal key, the AAD, and the Nonce. An encrypted MPDU is generated to be transmitted to a peer station by combining the plaintext MPDU header, the CCMP header, the encrypted data and the MIC.

Abstract translation: 描述了一种用于在无线局域网系统中执行密码通信的方法和装置。 获得明文媒体访问控制（MAC）协议数据单元（MPDU）的伪噪声（PN）码序列。 通过使用明文MPDU的报头中的至少一个字段来构造附加认证数据（AAD）。 随机数由PN码序列，明文MPDU的报头中的地址2字段和明文MPDU的报头中的优先级字段构成。 使用密码块链接（CBC）-MAC协议（CCMP）头部生成计数器模式（CTR）。 加密数据和消息完整性代码（MIC）是通过使用临时密钥，AAD和随机数生成的。 通过组合明文MPDU报头，CCMP报头，加密数据和MIC，生成经加密的MPDU以发送到对等站。

公开(公告)号：USRE44928E1

公开(公告)日：2014-06-03

申请号：US13941277

申请日：2013-07-12

Applicant: LG Electronics Inc.

Inventor： Joon Kui Ahn ,  Young Woo Yun ,  Ki Jun Kim ,  Eun Sun Kim ,  Dae Won Lee ,  Dong Youn Seo ,  Suk Hyon Yoon

IPC: H04L27/00 ,  H04B7/216

CPC classification number: H04J11/0036 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2601

Abstract: The present invention relates to receiving control information in an orthogonal frequency division multiplexing (OFDM) system of a mobile communication system. The present invention includes receiving information related to a number of OFDM symbols in a subframe for receiving first control information, receiving information related to a number of OFDM symbols in the subframe for receiving second control information, decoding the first control information according to the received information related to the number of OFDM symbols in the subframe for receiving the first control information, and decoding the second control information according to the received information related to the number of OFDM symbols in the subframe for receiving the second control information, wherein the number of OFDM symbols for receiving the first control information is less than or equal to the number of OFDM symbols for receiving the second control information.

Abstract translation: 本发明涉及在移动通信系统的正交频分复用（OFDM）系统中接收控制信息。 本发明包括接收与用于接收第一控制信息的子帧中的多个OFDM符号有关的信息，接收与用于接收第二控制信息的子帧中的多个OFDM符号有关的信息，根据接收到的信息对第一控制信息进行解码 与用于接收第一控制信息的子帧中的OFDM符号的数量相关，以及根据与用于接收第二控制信息的子帧中的OFDM符号的数量相关的接收信息对第二控制信息进行解码，其中OFDM的数量 用于接收第一控制信息的符号小于或等于用于接收第二控制信息的OFDM符号的数量。