公开(公告)号：US08923432B2

公开(公告)日：2014-12-30

申请号：US13690481

申请日：2012-11-30

Applicant: QUALCOMM Incorporated

Inventor： Eugene J. Baik ,  Sameer Vermani ,  Lin Yang ,  Hemanth Sampath

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04L5/00 ,  H04B7/0413 ,  H04B7/0671

Abstract: Methods and devices for communicating in a communication system are described herein. One aspect provides a method of communicating over one or more space-time streams. The method includes transmitting a first stream with a bandwidth of 2 MHz or less. The method further includes transmitting, when there are at least two streams, a second stream with a cyclic shift delay relative to the first stream equal to half a period. The method further includes transmitting, when there are at least three streams, a third stream with a cyclic shift delay relative to one of the first and second stream equal to a quarter of the period. The method further includes transmitting, when there are at least four streams, a fourth stream with a cyclic shift delay relative to the other of the first and second stream equal to a quarter of the period.

Abstract translation: 本文描述了用于在通信系统中通信的方法和设备。 一方面提供了一种在一个或多个时空流上进行通信的方法。 该方法包括发送带宽为2MHz或更小的第一流。 该方法还包括：当存在至少两个流时，相对于第一流的循环移位延迟等于半个周期的第二流。 所述方法还包括：当存在至少三个流时，相对于所述第一和第二流中的一个等于所述周期的四分之一的循环移位延迟来发送第三流。 所述方法还包括：当存在至少四个流时，相对于所述第一和第二流中的另一个流具有循环移位延迟的第四流等于所述周期的四分之一。

公开(公告)号：US20130272282A1

公开(公告)日：2013-10-17

申请号：US13782780

申请日：2013-03-01

Applicant: Qualcomm Incorporated

Inventor： Eugene J. Baik ,  Sameer Vermani

IPC: H04W84/12

CPC classification number: H04W84/12 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0025 ,  H04L1/0083 ,  H04L27/2602 ,  H04L27/2614

Abstract: Systems and methods of controlling characteristics of messages in sub-1 GHz networks (e.g., IEEE 802.11ah networks) are disclosed. One or more data structures indicating tone scaling parameters may be stored at or accessible to transmitters and receivers. The data structures may be organized based on a frame format, a wireless network bandwidth, and/or the number of spatial streams in use at the wireless network. Information stored in the data structures may be used in generation and processing of messages communicated via the sub-1 GHz network.

Abstract translation: 公开了控制1GHz以下网络（例如，IEEE 802.11ah网络）消息特性的系统和方法。 指示音调缩放参数的一个或多个数据结构可以存储在发射机和接收机处或可访问。 可以基于帧格式，无线网络带宽和/或在无线网络使用的空间流的数量来组织数据结构。 存储在数据结构中的信息可以用于生成和处理通过sub-1GHz网络传送的消息。