公开(公告)号：US20180288625A1

公开(公告)日：2018-10-04

申请号：US15991155

申请日：2018-05-29

Applicant: Cisco Technology, Inc.

Inventor： Vikram Chandrasekhar ,  Kedar Shirali ,  Qing Zhao ,  Rajesh Pazhyannur

IPC: H04W16/14 ,  H04L1/18 ,  H04W74/08

CPC classification number: H04W16/14 ,  H04L1/1812 ,  H04L1/1896 ,  H04W74/0816

Abstract: A mobile device transmits data over a shared spectrum in an uplink channel to a base station in a contention-based access scheme. The mobile device obtains data to be wirelessly transmitted over the shared spectrum in the uplink channel to the base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a listen before transmit procedure. When the shared spectrum is free for transmission, the mobile device contends with other mobile device to gain access to the uplink channel. After gaining access to the uplink channel, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.

公开(公告)号：US20170041805A1

公开(公告)日：2017-02-09

申请号：US15227099

申请日：2016-08-03

Applicant: Cisco Technology, Inc.

Inventor： Vikram Chandrasekhar ,  Kedar Shirali ,  Qing Zhao ,  Rajesh Pazhyannur

IPC: H04W16/14 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04L1/1812 ,  H04L1/1896 ,  H04W74/0816

Abstract: A mobile device obtains data to be wirelessly transmitted over a shared spectrum in an uplink channel to a base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a Listen Before Transmit procedure. When the shared spectrum is free for transmission, the mobile device selects a start time in the uplink channel that mitigates interference from other mobile devices in proximity to the mobile device. Beginning at the start time, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.

Abstract translation: 移动设备获取在上行链路信道中通过共享频谱无线发送的数据到基站。 上行链路信道用预定定时的帧/子帧结构格式化。 移动设备根据“在侦听之前”过程确定共享频谱是否可用于传输。 当共享频谱不需要传输时，移动设备选择上行链路信道中的起始时间，以减轻来自移动设备附近的其他移动设备的干扰。 从开始时开始，移动设备通过上行链路信道中的共享频谱将数据发送到基站。

公开(公告)号：US10028151B2

公开(公告)日：2018-07-17

申请号：US15227099

申请日：2016-08-03

Applicant: Cisco Technology, Inc.

Inventor： Vikram Chandrasekhar ,  Kedar Shirali ,  Qing Zhao ,  Rajesh Pazhyannur

IPC: H04W72/00 ,  H04W16/14 ,  H04W74/08 ,  H04L1/18

Abstract: A mobile device obtains data to be wirelessly transmitted over a shared spectrum in an uplink channel to a base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a Listen Before Transmit procedure. When the shared spectrum is free for transmission, the mobile device selects a start time in the uplink channel that mitigates interference from other mobile devices in proximity to the mobile device. Beginning at the start time, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.

公开(公告)号：US10375582B2

公开(公告)日：2019-08-06

申请号：US15991155

申请日：2018-05-29

Applicant: Cisco Technology, Inc.

Inventor： Vikram Chandrasekhar ,  Kedar Shirali ,  Qing Zhao ,  Rajesh Pazhyannur

IPC: H04W72/00 ,  H04W16/14 ,  H04W74/08 ,  H04L1/18

Abstract: A mobile device transmits data over a shared spectrum in an uplink channel to a base station in a contention-based access scheme. The mobile device obtains data to be wirelessly transmitted over the shared spectrum in the uplink channel to the base station. The uplink channel is formatted with a frame/subframe structure with a predetermined timing. The mobile device determines whether the shared spectrum is free for transmission according to a listen before transmit procedure. When the shared spectrum is free for transmission, the mobile device contends with other mobile device to gain access to the uplink channel. After gaining access to the uplink channel, the mobile device transmits the data over the shared spectrum in the uplink channel to the base station.