利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

97 条记录 (耗时 0.025 秒)

    METHOD OF PERFORMING CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM
    72.
    发明公开
    METHOD OF PERFORMING CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：EP3979528A1

    公开(公告)日：2022-04-06

    申请号：EP21188382.2

    申请日：2008-07-03

    申请人： LG Electronics, Inc.

    发明人： HAN, Seung Hee ,  NOH, Min Seok ,  KWON, Yeong Hyeon ,  LEE, Hyun Woo ,  KIM, Dong Cheol ,  KWAK, Jin Sam

    IPC分类号： H04J11/00 ,  H04B1/7083 ,  H04B1/7073 ,  H04B7/212 ,  H04J13/10 ,  H04W48/16 ,  H04L25/03 ,  H04W56/00

    摘要： A base station for a wireless communication system is proposed, which comprises a processor configured for: transmitting a primary synchronization signal, PSS, the PSS comprising a primary synchronization code PSC; transmitting a first secondary synchronization signal, SSS, the first SSS comprising a first secondary synchronization code, SSC, and a second SSC; and transmitting a second SSS, the second SSS comprising the first SSC and the second SSC, wherein the first SSC of the first SSS is scrambled by using a first scrambling code, the second SSC of the first SSS is scrambled by using a second scrambling code, the first SSC of the second SSS is scrambled by using the second scrambling code, and the second SSC of the second SSS is scrambled by using the first scrambling code, and wherein the first scrambling code and the second scrambling code are associated with the PSC.

    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET
    73.
    发明公开
    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET 审中-公开

    公开(公告)号：EP3767908A1

    公开(公告)日：2021-01-20

    申请号：EP20194968.2

    申请日：2008-01-04

    申请人： LG Electronics Inc.

    发明人： HAN, Seung Hee ,  NOH, Min Seok ,  KWON, Yeong Hyeon ,  LEE, Hyun Woo ,  KIM, Dong Cheol ,  KWAK, Jin Sam ,  VUJCIC, Dragan

    IPC分类号： H04L27/26 ,  H04J13/00

    摘要： A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)- applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

    METHOD OF PERFORMING CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM
    74.
    发明公开
    METHOD OF PERFORMING CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：EP3734861A1

    公开(公告)日：2020-11-04

    申请号：EP20175532.9

    申请日：2008-07-03

    申请人： LG Electronics Inc.

    发明人： HAN, Seung Hee ,  NOH, Min Seok ,  KWON, Yeong Hyeon ,  LEE, Hyun Woo ,  KIM, Dong Cheol ,  KWAK, Jin Sam

    IPC分类号： H04B7/26 ,  H04J11/00 ,  H04B1/707

    摘要： A method of performing cell search in a wireless communication system, performed by a user equipment is proposed. The method comprises: searching for (S310) a primary synchronization code, PSC; searching for (S320) a first secondary synchronization signal, SSS, comprising a first sequence and a second sequence; searching for (S320) a second SSS comprising the first sequence and the second sequence; and acquiring a cell identity based on the PSC, the first SSS and the second SSS, wherein the first sequence of the first SSS is scrambled by using a first scrambling code, the second sequence of the first SSS is scrambled by using a second scrambling code, the first sequence of the second SSS is scrambled by using the second scrambling code, and the second sequence of the second SSS is scrambled by using the first scrambling code, and wherein the first scrambling code and the second scrambling code are associated with the PSC.

    METHOD OF PERFORMING CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM
    76.
    发明公开
    METHOD OF PERFORMING CELL SEARCH IN WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：EP3496297A1

    公开(公告)日：2019-06-12

    申请号：EP19154352.9

    申请日：2008-07-03

    申请人： LG ELECTRONICS INC.

    发明人： HAN, Seung Hee ,  NOH, Min Seok ,  KWON, Yeong Hyeon ,  LEE, Hyun Woo ,  KIM, Dong Cheol ,  KWAK, Jin Sam

    IPC分类号： H04B7/26 ,  H04J11/00 ,  H04B1/707

    摘要： A method of performing cell search in a wireless communication system, performed by a user equipment is proposed. The method comprises: receiving (S310) a primary synchronization code, PSC; receiving (S320) a first secondary synchronization signal, SSS, comprising a first sequence and a second sequence; and receiving (S320) a second SSS comprising the first sequence and the second sequence; wherein the first sequence of the first SSS is scrambled by using a first scrambling code, the second sequence of the first SSS is scrambled by using a second scrambling code, the first sequence of the second SSS is scrambled by using the second scrambling code, and the second sequence of the second SSS is scrambled by using the first scrambling code, and wherein the first scrambling code and the second scrambling code are associated with the PSC.

    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET
    78.
    发明公开
    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET 审中-公开

    公开(公告)号：EP3393098A1

    公开(公告)日：2018-10-24

    申请号：EP18176019.0

    申请日：2008-01-04

    申请人： LG Electronics Inc.

    发明人： HAN, Seung Hee ,  NOH, Min Seok ,  KWON, Yeong Hyeon ,  LEE, Hyun Woo ,  KIM, Dong Cheol ,  KWAK, Jin Sam ,  VUJCIC, Dragan

    IPC分类号： H04L27/26 ,  H04J13/00

    CPC分类号： H04L27/2607 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/22 ,  H04L27/2613 ,  H04L27/2657

    摘要： A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)- applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.