公开(公告)号：EP3197114A4

公开(公告)日：2017-08-09

申请号：EP14899104

申请日：2014-08-06

申请人： HUAWEI TECH CO LTD

发明人： LU WEISHAN ,  EZRI DORON ,  LIU LE

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L25/02

CPC分类号： H04L5/0048 ,  H04B7/0452 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04L27/2657 ,  H04W72/0453

摘要： The present invention discloses a method for transmitting information, a station, and an access point in a MU-MIMO system. The method includes: determining, by a first station, multiple to-be-sent first long training sequences, where the multiple first long training sequences include at least one pilot for phase tracking ; and sending, by the first station, the multiple first long training sequences to an access point on multiple symbols, where a second station sends multiple second long training sequences to the access point on the multiple symbols, the multiple second long training sequences include at least one pilot for phase tracking , and a first pilot for phase tracking and a second pilot for phase tracking occupy different time-frequency resources, where the at least one pilot for phase tracking included in the multiple first long training sequences includes the first pilot for phase tracking , and the at least one pilot for phase tracking included in the multiple second long training sequences includes the second pilot for phase tracking . By using the method for transmitting uplink information disclosed in the present invention, frequency offset parameters of stations can be determined.

摘要翻译： 本发明公开了一种MU-MIMO系统中的信息传输方法，站点和接入点。 该方法包括：第一站点确定多个待发送的第一长训练序列，其中，所述多个第一长训练序列包括至少一个用于相位跟踪的导频; 所述第一站点在多个符号上向所述接入点发送所述多个第一长训练序列，第二站点在所述多个符号上向所述接入点发送多个第二长训练序列，所述多个第二长训练序列至少包括 一个用于相位跟踪的导频，以及用于相位跟踪的第一导频和用于相位跟踪的第二导频占据不同的时间 - 频率资源，其中包括在多个第一长训练序列中的用于相位跟踪的至少一个导频包括用于相位的第一导频 跟踪，并且包括在多个第二长训练序列中的用于相位跟踪的至少一个导频包括用于相位跟踪的第二导频。 通过使用本发明公开的传输上行信息的方法，可以确定站点的频偏参数。

公开(公告)号：EP3282660A4

公开(公告)日：2018-04-18

申请号：EP15891129

申请日：2015-05-20

申请人： HUAWEI TECH CO LTD

发明人： LIN MEILU ,  LIU SHENG ,  LIN WEI ,  YU JIAN ,  LIU LE ,  YANG XUN ,  SHILO SHIMON ,  EZRI DORON ,  TSODIK GENADIY ,  REDLICH ODED

IPC分类号： H04L27/26 ,  H04L5/00

CPC分类号： H04L27/2626 ,  H04L5/0048 ,  H04L5/0091 ,  H04L27/26 ,  H04L27/2605 ,  H04L69/323 ,  H04W84/12

摘要： Embodiments of the present invention provide a method for transmitting a physical layer protocol data unit PPDU, including: some data subcarriers of a last orthogonal frequency division multiplexing OFDM symbol that carries useful information and that is in the PPDU carry a data symbol sequence, the other data subcarriers of the last OFDM symbol that carries useful information carry a feature signal sequence, and a starting position of the feature signal sequence is determined by parsing the PPDU. The embodiments of the present invention further provide a corresponding PPDU transmission apparatus. Application of the method and apparatus in the embodiments of the present invention enables a receive end to quickly determine the starting position of the feature signal sequence by means of blind detection, and ensures that the receive end quickly completes data processing and state switching.