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公开(公告)号：US20180131540A1
公开(公告)日：2018-05-10
申请号：US15343852
申请日：2016-11-04
Applicant: QUALCOMM Incorporated
Inventor： Rahul Malik , Bin Tian , Hemanth Sampath
CPC classification number: H04L69/22 , H04L25/022 , H04L25/0226 , H04L27/2613 , H04L27/2628 , H04L27/2663 , H04L27/2692 , H04L27/2695 , H04W84/12
Abstract: This disclosure provides systems, methods and apparatuses for estimating angular information of a received wireless signal. In some implementations, a receiving device may receive a wireless signal from a transmitting device, and estimate channel conditions, based on a number of sounding sequences, to determine a channel frequency response of the received wireless signal. The receiving device may determine a channel impulse response based an inverse discrete Fourier transfer (DFT) function or a partial inverse DFT function of the channel frequency response, and then select a portion of the channel impulse response. The receiving device may estimate an angle of arrival of the received wireless signal based on the selected portion of the channel impulse response.
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公开(公告)号：US09839025B2
公开(公告)日：2017-12-05
申请号：US15203655
申请日：2016-07-06
Applicant: QUALCOMM Incorporated
Inventor： Hemanth Sampath , Bin Tian , Rahul Tandra , Gwendolyn Denise Barriac , Yan Zhou , Sameer Vermani , Simone Merlin
CPC classification number: H04W72/042 , H04W16/10 , H04W16/14 , H04W72/04 , H04W72/0453 , H04W72/082 , H04W74/0816 , H04W74/085 , H04W84/12 , H04W88/08
Abstract: Systems, methods, and devices for transmitting data are described herein. In some aspects, a method comprises generating a first message. The first message may comprise an allocation of a first station to a first frequency channel and a second station to a second frequency channel. The method further comprises transmitting the first message over the first frequency channel and the second frequency channel. The method further comprises transmitting, after transmission of the first message, a second message to the first station using the first frequency channel. The method further comprises transmitting, after transmission of the first message, a third message to the second station using the second frequency channel.
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13.发明申请公开(公告)号：US20170230214A1
公开(公告)日：2017-08-10
申请号：US15480643
申请日：2017-04-06
Applicant: QUALCOMM Incorporated
Inventor： Lin YANG , Didier Johannes Richard Van Nee , Hemanth Sampath
CPC classification number: H04L27/262 , H04B7/0413 , H04L27/2613 , H04L27/2618 , H04L27/2621 , H04W28/065 , H04W52/325 , H04W84/12
Abstract: Techniques are provided for constructing or determining a training sequence as a part of transmission preamble to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node. In one example, a long training field (LTF) sequence of a preamble is determined that combines a set of interpolating sequences with LTF tone values. The LTF tone values may cover at least a portion of bandwidth of a first size, with each of the LTF tone values repeated for different subcarriers. The phases of tones of the LTF sequence may be rotated per bandwidth of the first size and certain tones of the LTF sequence may have a stream of values at pilot locations. For example, the phases of tones of the LTF sequence may be rotated in an effort to reduce PAPR during a transmission of the LTF sequence.
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公开(公告)号：US09699086B2
公开(公告)日：2017-07-04
申请号：US14469400
申请日：2014-08-26
Applicant: QUALCOMM Incorporated
Inventor： Simone Merlin , Gwendolyn Denise Barriac , Hemanth Sampath , Sameer Vermani
IPC: H04J3/16 , H04L12/801 , H04L12/851 , H04B7/26 , H04L5/00 , H04W72/04 , H04B7/0452 , H04W52/14 , H04L1/18 , H04W72/12 , H04W74/00 , H04W74/04 , H04L1/16 , H04L1/00 , H04W28/24 , H04W74/08 , H04W28/06
CPC classification number: H04L47/12 , H04B7/0452 , H04B7/2621 , H04L1/0008 , H04L1/1607 , H04L1/1854 , H04L1/1858 , H04L1/1861 , H04L5/0005 , H04L5/0007 , H04L5/003 , H04L5/0037 , H04L5/0055 , H04L47/14 , H04L47/24 , H04L2001/0093 , H04N7/17309 , H04W28/06 , H04W28/24 , H04W52/146 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/12 , H04W72/121 , H04W72/1284 , H04W72/1289 , H04W74/006 , H04W74/008 , H04W74/04 , H04W74/08 , H04W74/085
Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method for wireless communication includes generating a first wireless message granting permission for a first station to transmit during a transmission opportunity, generating a second wireless message granting permission for a second station to transmit during the transmission opportunity; and transmitting the first wireless message to the first station at least partially concurrently with transmission of the second wireless message to the second station.
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公开(公告)号：US09692123B2
公开(公告)日：2017-06-27
申请号：US14024520
申请日：2013-09-11
Applicant: QUALCOMM Incorporated
Inventor： Sameer Vermani , Didier Johannes Richard Van Nee , Sanaz Barghi , Hemanth Sampath , Vincent Knowles Jones, IV
IPC: H04B7/02 , H01Q3/24 , H04B7/0408 , H04B7/0426 , H01Q3/26 , H04B7/06
CPC classification number: H01Q3/24 , H01Q3/26 , H04B7/02 , H04B7/0408 , H04B7/0426 , H04B7/0613 , H04B7/0669 , H04B7/0671 , H04B7/068 , H04B7/0682
Abstract: In a particular embodiment, a method of controlling a radiation pattern includes selecting a signal processing characteristic to vary based on a radiation pattern to be emitted by an antenna array of a wireless device, wherein the antenna array includes a plurality of antennas, wherein the signal processing characteristic provides a target resultant radiation pattern, and wherein the signal processing characteristic is applies to less than all elements of the antenna array, and varying the signal processing characteristic across time, frequency, or a combination thereof.
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Patent Agency Ranking
公开(公告)号：US09642040B2
公开(公告)日：2017-05-02
申请号：US14857498
申请日：2015-09-17
Applicant: QUALCOMM Incorporated
CPC classification number: H04W28/085 , H04L43/08 , H04W24/02 , H04W24/10 , H04W28/08 , H04W36/0083 , H04W36/08 , H04W36/22 , H04W40/12 , H04W40/22 , H04W88/08
Abstract: With multiple communication channels available and range extenders, a number of paths may be available for communicating traffic in a wireless network. Traffic on paths in the wireless network may be load balanced to improve channel utilization and/or relieve an overloaded communication channel. To load balance the traffic, a first AP may determine candidate paths between a first AP and a client device, wherein at least one of the candidate paths traverses a second AP. The AP may determine available bandwidths of the candidate paths based, at least in part, on availability of communication channels of the candidate paths. The AP may steer a portion of the wireless network traffic of the client device to a first of the candidate paths based, at least in part, on the available bandwidths.
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公开(公告)号：US09629100B2
公开(公告)日：2017-04-18
申请号：US14690656
申请日：2015-04-20
Applicant: QUALCOMM Incorporated
CPC classification number: H04W52/241 , H04W52/08 , H04W52/146 , H04W52/243 , H04W52/36 , H04W84/12 , Y02D70/00
Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.
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公开(公告)号：US09510292B2
公开(公告)日：2016-11-29
申请号：US13763521
申请日：2013-02-08
Applicant: QUALCOMM Incorporated
Inventor： Santosh Paul Abraham , George Cherian , Hemanth Sampath , Rolf De Vegt , Simone Merlin , Alireza Raissinia , Vinay Sridhara
CPC classification number: H04W52/04 , H04W8/005 , H04W28/021 , H04W48/12 , H04W64/006 , H04W84/18
Abstract: Systems and methods of limiting wireless discovery range. A transmitting device may limit wireless discovery range by adjusting one or more transmission attributes of a discovery message, measuring inter-device distance based on range determination messages, or any combination thereof. A receiving device may limit wireless discovery range based on one or more attributes of a received discovery message, measuring inter-device distance based on range determination messages, or any combination thereof. Discovery messages may include a range adaptation bit indicating whether range adaptation is to be performed.
Abstract translation: 限制无线发现范围的系统和方法。 发送设备可以通过调整发现消息的一个或多个传输属性，基于范围确定消息来测量设备间距离或其任何组合来限制无线发现范围。 接收设备可以基于接收到的发现消息的一个或多个属性来限制无线发现范围，基于范围确定消息来测量设备间距离，或其任何组合。 发现消息可以包括指示是否要执行范围适配的范围适配位。
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公开(公告)号：US20160316476A1
公开(公告)日：2016-10-27
申请号：US15203655
申请日：2016-07-06
Applicant: QUALCOMM Incorporated
Inventor： Hemanth Sampath , Bin Tian , Rahul Tandra , Gwendolyn Denise Barriac , Yan Zhou , Sameer Vermani , Simone Merlin
CPC classification number: H04W72/042 , H04W16/10 , H04W16/14 , H04W72/04 , H04W72/0453 , H04W72/082 , H04W74/0816 , H04W74/085 , H04W84/12 , H04W88/08
Abstract: Systems, methods, and devices for transmitting data are described herein. In some aspects, a method comprises generating a first message. The first message may comprise an allocation of a first station to a first frequency channel and a second station to a second frequency channel. The method further comprises transmitting the first message over the first frequency channel and the second frequency channel. The method further comprises transmitting, after transmission of the first message, a second message to the first station using the first frequency channel. The method further comprises transmitting, after transmission of the first message, a third message to the second station using the second frequency channel.
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公开(公告)号：US09451590B2
公开(公告)日：2016-09-20
申请号：US14165390
申请日：2014-01-27
Applicant: QUALCOMM Incorporated
Inventor： Hemanth Sampath , Vincent Knowles Jones, IV , Sameer Vermani , Didier Johannes Richard Van Nee , Gwendolyn Denise Barriac
CPC classification number: H04W72/04 , H04L1/004 , H04L1/0078 , H04L1/1692 , H04L1/1861 , H04L27/2613 , H04W28/065
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for extending range and delay spread in 2.4 and 5 GHz bands, and potentially frequency multiplexing users. An apparatus is provided for wireless communications. The apparatus generally includes a processing system configured to generate a packet comprising a first preamble decodable by a first type of device and a second type of device, a second preamble that is decodable by the second type of device, but not the first type of device, and data and a transmitter configured to transmit the packet, wherein the first preamble is transmitted using a first channel bandwidth and the second preamble and data are transmitted using only a portion of the first channel bandwidth.
Abstract translation: 本公开的某些方面涉及用于在2.4GHz和5GHz频带以及潜在的频率复用用户中扩展范围和延迟扩展的方法和装置。 提供了一种用于无线通信的装置。 该装置通常包括处理系统，其被配置为生成包括可由第一类型的设备解码的第一前同步码和第二类型的设备的分组，可由第二类型的设备解码的第二前导码，而不是第一类型的设备 以及数据和被配置为发送分组的发射机，其中使用第一信道带宽发送第一前同步码，并且仅使用第一信道带宽的一部分来发送第二前同步码和数据。
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