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公开(公告)号:US20170034707A1
公开(公告)日:2017-02-02
申请号:US14810301
申请日:2015-07-27
Applicant: QUALCOMM Incorporated
Inventor: Michael Richard Green , Meriam Rezk , Youhan Kim , Mahboobul Alem
Abstract: Methods, systems, and apparatuses are described for wireless communications. More particularly, an access point may assign a channel weighting factor to each channel in a candidate channel list. The access point may identify an attribute of a radar signal detected on a current operating channel. The access point may adjust, based at least in part on the identified attribute, the channel weighting factor assigned to a channel of the candidate channel list adjacent to the current operating channel. The access point may select a new operating channel from the candidate channel list based at least in part on the assigned channel weighting factor.
Abstract translation: 为无线通信描述了方法,系统和装置。 更具体地,接入点可以向候选信道列表中的每个信道分配信道加权因子。 接入点可以识别在当前操作信道上检测到的雷达信号的属性。 接入点可以至少部分地基于所识别的属性来调整分配给与当前操作信道相邻的候选信道列表的信道的信道加权因子。 接入点可以至少部分地基于分配的信道加权因子从候选信道列表中选择新的操作信道。
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公开(公告)号:US20170303275A1
公开(公告)日:2017-10-19
申请号:US15486083
申请日:2017-04-12
Applicant: QUALCOMM Incorporated
Inventor: Raja Banerjea , Michael Richard Green , Bin Tian , Vincent Knowles Jones, IV , Youhan Kim , Sameer Vermani
CPC classification number: H04W72/0446 , H04B1/713 , H04L5/0007 , H04W84/12 , H04W88/08
Abstract: Method and systems are disclosed for qualifying a wireless device as frequency hopping device. In some aspects, an access point (AP) may determine a frequency hopping pattern for the wireless device, and then allocate a sequence of unique resource units to the wireless device based on the frequency hopping pattern. Each of the unique resource units include a different set of frequency subcarriers. The AP may receive a series of uplink orthogonal frequency-division multiple access (OFDMA) transmissions from the wireless device on the allocated sequence of unique resource units.
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公开(公告)号:US10356777B2
公开(公告)日:2019-07-16
申请号:US15486083
申请日:2017-04-12
Applicant: QUALCOMM Incorporated
Inventor: Raja Banerjea , Michael Richard Green , Bin Tian , Vincent Knowles Jones, IV , Youhan Kim , Sameer Vermani
Abstract: Method and systems are disclosed for qualifying a wireless device as frequency hopping device. In some aspects, an access point (AP) may determine a frequency hopping pattern for the wireless device, and then allocate a sequence of unique resource units to the wireless device based on the frequency hopping pattern. Each of the unique resource units include a different set of frequency subcarriers. The AP may receive a series of uplink orthogonal frequency-division multiple access (OFDMA) transmissions from the wireless device on the allocated sequence of unique resource units.
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公开(公告)号:US10200993B2
公开(公告)日:2019-02-05
申请号:US15143087
申请日:2016-04-29
Applicant: QUALCOMM Incorporated
Inventor: Michael Richard Green
Abstract: Techniques are described for wireless communication at a wireless communication device. One method includes determining an availability of a sub-band of a shared radio frequency spectrum band during a first portion of a distributed channel availability check (CAC); receiving at least one indication that the sub-band is available during remaining portions of the distributed CAC; and communicating over the sub-band based at least in part on determining the sub-band is available during the first portion of the distributed CAC and the at least one indication that the sub-band is available during remaining portions of the distributed CAC.
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公开(公告)号:US20180338244A1
公开(公告)日:2018-11-22
申请号:US15981608
申请日:2018-05-16
Applicant: QUALCOMM Incorporated
Inventor: Amar Singhal , Michael Richard Green , Tarik Isani , Jeffrey Thomas Johnson
Abstract: This disclosure may prevent unauthorized modification of country code information stored in a wireless device including a high-level operating system (HLOS) and a radio subsystem including at least a first radio and a second radio. The first radio may receive first country code information from the HLOS, and may receive a message from the second radio. The message may include second country code information and a digital signature. The first radio may verify the message based on the digital signature, and may determine a validity of the first country code information based on a comparison with the second country code information. Transmission parameters of the wireless device may be configured using either the first or second country code information in response to the verifying.
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公开(公告)号:US10986561B2
公开(公告)日:2021-04-20
申请号:US16135830
申请日:2018-09-19
Applicant: QUALCOMM Incorporated
Inventor: Hemish Parikh , Tevfik Yucek , Michael Richard Green
IPC: H04W48/06 , H04W72/04 , H04W24/10 , H04W72/08 , H04W76/18 , H04W16/14 , H04W84/12 , H04W48/16 , H04W36/20
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for managing wireless local area network (WLAN) density. The WLAN density is managed to limit how many APs can utilize a first portion of a first frequency band in a geographical area. A limit of APs may be based on an estimated amount of interference that would be caused by the APs to an incumbent system that also uses the first portion of the frequency band. The WLAN density control may prevent the estimated amount of interference caused by APs in a geographical area from exceeding a threshold interference level based on the presence of the incumbent system. WLAN density control may involve the AP configuration of a first AP or may involve the density of client devices associated with one or more APs in the geographical area.
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公开(公告)号:US20190124584A1
公开(公告)日:2019-04-25
申请号:US16135830
申请日:2018-09-19
Applicant: QUALCOMM Incorporated
Inventor: Hemish Parikh , Tevfik Yucek , Michael Richard Green
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for managing wireless local area network (WLAN) density. The WLAN density is managed to limit how many APs can utilize a first portion of a first frequency band in a geographical area. A limit of APs may be based on an estimated amount of interference that would be caused by the APs to an incumbent system that also uses the first portion of the frequency band. The WLAN density control may prevent the estimated amount of interference caused by APs in a geographical area from exceeding a threshold interference level based on the presence of the incumbent system. WLAN density control may involve the AP configuration of a first AP or may involve the density of client devices associated with one or more APs in the geographical area.
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公开(公告)号:US20180152918A1
公开(公告)日:2018-05-31
申请号:US15362495
申请日:2016-11-28
Applicant: QUALCOMM Incorporated
Inventor: Michael Richard Green , Albert van Zelst , Youhan Kim
CPC classification number: G01S7/021 , H04W72/0453 , H04W74/0808 , H04W84/12
Abstract: A method and apparatus are disclosed for transmitting, by a wireless device, wireless communication signals in the presence of one or more radar signals. For at least some embodiments, a wireless communication channel may be divided into a plurality of resource units. When a radar signal is detected within one or more of the resource units, wireless transmissions may be suppressed within those resource units. The resource units without radar signals may be used for wireless transmissions. In this manner, an entire wireless channel need not be vacated when a radar signal is detected, thereby preserving at least some communication bandwidth of the wireless communication channel.
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公开(公告)号:US09973969B2
公开(公告)日:2018-05-15
申请号:US14866595
申请日:2015-09-25
Applicant: QUALCOMM Incorporated
Inventor: Sandip HomChaudhuri , Pradeep Kumar Yenganti , Michael Richard Green , Alireza Raissinia , Srinivas Katar , Hoon Ki Lee
IPC: H04W28/06 , H04L12/801 , H04W48/16 , H04W84/12
Abstract: Methods, systems, and apparatuses are described for adaptive dwell time for scan procedures. A wireless station (STA) may identify a scan period during which a passive scan procedure is performed on a first channel. The STA may analyze a channel congestion metric during at least a portion of the scan period. The STA may transition from the passive scan procedure to an active scan procedure on the first channel during the scan period based at least in part on the analyzed channel congestion metric.
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10.
公开(公告)号:US09924519B2
公开(公告)日:2018-03-20
申请号:US14864763
申请日:2015-09-24
Applicant: QUALCOMM Incorporated
Inventor: Michael Richard Green , John Forrester
IPC: H04W72/04 , H04W72/12 , H04B7/212 , H04W4/02 , H04L12/26 , H04W16/14 , H04W74/00 , G01S7/02 , H04K3/00 , H04B17/382
CPC classification number: H04W72/048 , G01S7/021 , H04B7/2123 , H04B17/382 , H04K3/226 , H04L43/062 , H04W4/021 , H04W16/14 , H04W72/0453 , H04W72/12 , H04W74/002
Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to determine whether radar signals are present on one or more channels. The apparatus is configured to transmit a channel feedback report that includes channel information for each of the one or more channels based on the determination of whether radar signals are present on the one or more channels. The channel information for each of the one or more channels includes at least one of a time at which radar signal detection was attempted, a frequency range of a detected radar signal, a set of radar signal characteristics, a received radar vector, a geographical location of the wireless device when radar signal detection was attempted, or an indication of wireless activity.
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