公开(公告)号：US09686791B2

公开(公告)日：2017-06-20

申请号：US14469356

申请日：2014-08-26

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Avinash Jain ,  Stephen Shellhammer ,  Hemanth Sampath

IPC: H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04W88/06

CPC classification number: H04W72/0453 ,  H04L5/0096 ,  H04W16/14 ,  H04W88/06

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels.

公开(公告)号：US20140362817A1

公开(公告)日：2014-12-11

申请号：US14469326

申请日：2014-08-26

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Avinash Jain ,  Stephen Shellhammer ,  Hemanth Sampath

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L5/0096 ,  H04W16/14 ,  H04W88/06

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels.

Abstract translation: 本公开的某些方面提供了用于在电视空白（TVWS）网络中操作的技术和装置。 一个示例性方法通常包括在装置处接收具有指示未使用频谱图（例如，空白映射（WSM））的当前版本的字段的消息，该未使用频谱图指示可用于无线通信的信道; 确定当前版本的未使用频谱图是否与未使用的频谱图的先前版本不同; 以及基于该确定使用用于无线通信的信道。 另一示例性方法通常包括经由相邻便携式或固定的启用设备访问设备的当前位置的可用信道的数据库，并且使得一个或多个便携式依赖设备经由一个或多个可用信道实现无线通信。

公开(公告)号：US20140362819A1

公开(公告)日：2014-12-11

申请号：US14469356

申请日：2014-08-26

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Avinash Jain ,  Stephen Shellhammer ,  Hemanth Sampath

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L5/0096 ,  H04W16/14 ,  H04W88/06

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels.

公开(公告)号：US20170135050A1

公开(公告)日：2017-05-11

申请号：US15413016

申请日：2017-01-23

Applicant: QUALCOMM Incorporated

Inventor： Santosh ABRAHAM ,  Sameer Vermani ,  Hemanth Sampath ,  Stephen Shellhammer ,  Rahul Tandra

IPC: H04W52/32 ,  H04W16/14 ,  H04W74/08

CPC classification number: H04W52/04 ,  H04B7/12 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0027 ,  H04L1/06 ,  H04W16/14 ,  H04W52/325 ,  H04W52/367 ,  H04W74/0816

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for managing transmit power in a television white space (TVWS) network. One example method generally includes transmitting a sequence of request-to-send (RTS) messages at different transmit power levels to an apparatus and determining if a clear-to-send (CTS) message was received in response to at least one of the RTS messages corresponding to a particular one of the transmit power levels. Another example method generally includes receiving, at a first apparatus from a second apparatus, a packet that cannot be decoded by the first apparatus; determining at least one of a time or a duration corresponding to the packet; transmitting a query with an indication of the at least one of the time or the duration; and receiving a message from the second apparatus in response to the query, the message identifying the second apparatus as a source of the packet.