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11.发明授权公开(公告)号：US09577728B1
公开(公告)日：2017-02-21
申请号：US14866224
申请日：2015-09-25
Applicant: QUALCOMM Incorporated
Inventor： Didier Johannes Richard van Nee , Ahmed Ragab Elsherif , Albert van Zelst , Qinghai Gao , Vincent Knowles Jones, IV
CPC classification number: H04B7/0452 , H04B7/0658 , H04L1/0015 , H04L1/0019 , H04L43/16 , H04W16/28
Abstract: Methods, systems, and devices are described for wireless communication. An access point (AP) may determine a single user bias for a wireless device based on a feedback signal-to-noise ratio (SNR) and an SNR based on a modulation and coding scheme (MCS). The AP may also determine a multi-user SNR for the wireless device based on the feedback SNR, the single user bias, a multi user loss, and a group bias. The AP may then select an updated MCS based on the multi-user SNR. In some cases, the AP may transmit a reference signal to the wireless device and receive a compressed beamforming feedback report from the wireless device based on the reference signal. The feedback SNR may be based on the compressed beamforming feedback report. The AP may also maintain a blacklist of groups with channel correlation that satisfies a threshold, and refrain from scheduling those groups together.
Abstract translation: 描述了用于无线通信的方法，系统和设备。 接入点（AP）可以基于反馈信噪比（SNR）和基于调制和编码方案（MCS）的SNR来确定无线设备的单个用户偏倚。 AP还可以基于反馈SNR，单用户偏好，多用户丢失和组偏差来确定无线设备的多用户SNR。 然后，AP可以基于多用户SNR来选择更新的MCS。 在一些情况下，AP可以向无线设备发送参考信号，并且基于参考信号从无线设备接收压缩的波束形成反馈报告。 反馈SNR可以基于压缩波束成形反馈报告。 AP还可以维护具有满足阈值的信道相关性的组的黑名单，并且避免将这些组一起调度。
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12.发明申请公开(公告)号：US20160080043A1
公开(公告)日：2016-03-17
申请号：US14853872
申请日：2015-09-14
Applicant: QUALCOMM Incorporated
Inventor： Bin Tian , Lin Yang , Jialing Li Chen , Sameer Vermani , Rahul Tandra , Youhan Kim , Didier Johannes Richard van Nee
CPC classification number: H04B7/022 , H04L1/0071 , H04L1/06 , H04L5/0007 , H04L5/0037 , H04L5/0044 , H04L5/0053 , H04L27/2601 , H04W48/12
Abstract: Methods and apparatuses for communicating over a wireless communication network are disclosed herein. One method includes forming a message that includes a plurality of data tones and one or more direct current (DC) protection tones. The method further includes setting a value for a data tone of the plurality of data tones to carry a data portion of the message. The method further includes setting a value for a DC protection tone of the one or more DC protection tones by repeating the value for the data tone as the value for the DC protection tone. The method further includes transmitting the message to one or more wireless communication devices utilizing the plurality of data tones and the one or more DC protection tones.
Abstract translation: 本文公开了通过无线通信网络进行通信的方法和装置。 一种方法包括形成包括多个数据音调和一个或多个直流（DC）保护音调的消息。 该方法还包括设置多个数据音调的数据音调的值以携带该消息的数据部分。 该方法还包括通过将数据音调的值重复为DC保护音的值来设置一个或多个DC保护音调的直流保护音的值。 该方法还包括利用多个数据音调和一个或多个DC保护音调将消息发送到一个或多个无线通信设备。
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Patent Agency Ranking
公开(公告)号：US20160072689A1
公开(公告)日：2016-03-10
申请号：US14812975
申请日：2015-07-29
Applicant: QUALCOMM Incorporated
Abstract: Round trip time (RTT) measurements may be obtained from downlink (DL) trigger frame and uplink (UL) Multiple-Input Multiple-Output (MIMO) frame transactions, which can replace and/or complement separate RTT measurements. By implementing such techniques, wireless systems can make access to RTT measurements, and consequently, location determination of access points (APs) within the system, more easily accessible to navigation and/or other applications benefitting from such measurements and determinations.
Abstract translation: 可以从下行链路（DL）触发帧和上行链路（UL）多输入多输出（MIMO）帧事务获得往返时间（RTT）测量，其可以替代和/或补充分离的RTT测量。 通过实施这样的技术，无线系统可以访问RTT测量，并因此访问系统内的接入点（AP）的位置确定，更容易被导航和/或受益于这种测量和确定的其它应用程序访问。
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公开(公告)号：US20150230187A1
公开(公告)日：2015-08-13
申请号：US14690656
申请日：2015-04-20
Applicant: QUALCOMM Incorporated
IPC: H04W52/24
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：US10129060B2
公开(公告)日：2018-11-13
申请号：US14659384
申请日：2015-03-16
Applicant: QUALCOMM Incorporated
Abstract: A communication device for allocating tones is described that includes a processor and instructions in memory in electronic communication with the processor. The communication device determines whether a bandwidth for signal transmission is 20, 40, 80 or 160 megahertz (MHz). The communication device respectively allocates tones for 20, 40, 80 or 160 MHz as follows: for a very high throughput (VHT) signal A1 (VHT-SIG-A1): 52, 104, 208, 416; a VHT signal A2 (VHT-SIG-A2): 52, 104, 208, 416; a VHT short training field (VHT-STF): 12, 24, 48, 48; one or more VHT long training field(s) (VHT-LTF(s)): 56, 114, 242, 484; a VHT signal B (VHT-SIG-B): 56, 114, 242, 484; and a data field (DATA): 56, 114, 242, 484. The communication device also transmits the signal.
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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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17.发明申请公开(公告)号：US20170063438A1
公开(公告)日：2017-03-02
申请号：US14842592
申请日：2015-09-01
Applicant: QUALCOMM Incorporated
Inventor： Eugene Baik , Ahmed Ragab Elsherif , Qinghai Gao , Gregory Steele , Srinivas Katar , Didier Johannes Richard van Nee , Ehab Tahir
CPC classification number: H04L5/006 , H04B7/0452 , H04B7/0617 , H04B7/0632 , H04L5/0023 , H04L5/0037
Abstract: Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a first wireless device, compressed beamforming information from each of a plurality of stations, the compressed beamforming information including a feedback signal-to-noise ratio (SNR) value and compressed feedback matrix. The method also includes determining a multi-user signal-to-interference-plus noise ratio (SINR) metric for each of the plurality of stations based at least in part on the received feedback SNR values and the received compressed feedback matrices.
Abstract translation: 描述了用于无线通信的方法，系统和设备。 一方面，一种无线通信方法包括：由第一无线设备从多个站中的每一个接收压缩波束成形信息，所述压缩波束成形信息包括反馈信噪比（SNR）值和压缩反馈矩阵 。 该方法还包括至少部分地基于所接收的反馈SNR值和接收的压缩反馈矩阵来确定多个站中的每一个的多用户信号与干扰加噪声比（SINR）度量。
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