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131.
公开(公告)号:US20200344006A1
公开(公告)日:2020-10-29
申请号:US16852364
申请日:2020-04-17
Applicant: QUALCOMM Incorporated
Inventor: Stephen Jay Shellhammer , Jialing Li Chen , Dung Ngoc Doan , Bin Tian , Youhan Kim , Alfred Asterjadhi
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for implementing a retransmission protocol in a wireless local area network (WLAN). The retransmission protocol may be based on a hybrid automatic repeat request (HARQ) protocol that supports a delayed acknowledgement for a HARQ retransmission based on receiver processing capability. A first WLAN device may determine that a second WLAN device requires more time to process the HARQ retransmission and may transmit a different communication (interlaced within the HARQ process) to either the second WLAN device or a third WLAN device during the time that the second WLAN device is processing the HARQ retransmission.
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公开(公告)号:US20190327740A1
公开(公告)日:2019-10-24
申请号:US16387261
申请日:2019-04-17
Applicant: QUALCOMM Incorporated
Inventor: Lochan Verma , Bin Tian , Sameer Vermani , Lin Yang , Youhan Kim
IPC: H04W72/04
Abstract: An access point (AP) may signal management frames that include two operation information fields indicating two channel widths for different classes of wireless stations (STAs). STAs may identify one of the two operation information fields based on capabilities of the STA (e.g., whether or not the STA is capable of dual band channel bonding, resource unit or physical channel puncturing, etc.). In some cases, one operation information field may indicate a channel width within a first and second frequency band (e.g., within the 5 GHz band and the 6 GHz band), as well as a puncturing scheme associated with the channel width. In some cases, the operation information field may indicate a dual band channel bonding configuration, where two frequency segments associated with the channel bonding configuration are in two different frequency bands. In some cases, a tightened spectral mask may be used for such dual band channel bonding configurations.
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公开(公告)号:US20190261369A1
公开(公告)日:2019-08-22
申请号:US16276137
申请日:2019-02-14
Applicant: QUALCOMM Incorporated
Inventor: Lochan Verma , Bin Tian , Sameer Vermani , Lin Yang , Jialing Li Chen , Youhan Kim
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for partial bandwidth feedback based on punctured sounding. Punctured sounding is used by a transmitting device that omits portions of a channel bandwidth based on a puncturing pattern. The puncturing pattern may be based on an exclusion bandwidth zone to avoid transmissions on portions of channels that may interfere with an incumbent system transmission. The puncturing pattern may be indicated in a null data packet announcement (NDPA) to inform the receiving device that a subsequent NDP will be punctured. The receiving device may determine the feedback by measuring the portions of the NDP that are not punctured. Beamforming may be enhanced by using punctured sounding between two beamforming endpoints.
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公开(公告)号:US10270557B2
公开(公告)日:2019-04-23
申请号:US15890264
申请日:2018-02-06
Applicant: QUALCOMM Incorporated
Inventor: Lin Yang , Bin Tian , Gang Ding , Youhan Kim , Sameer Vermani
IPC: H03M13/00 , H04L1/00 , H03M13/11 , H03M13/23 , H04B7/0456 , H04L27/12 , H04L1/06 , H04B7/0452 , H04B7/06
Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a number of data symbols for transmitting a data payload. The apparatus is configured to determine a number of payload bits for transmitting the data payload based on the determined number of data symbols. The apparatus is configured to transmit a data frame. The data frame includes a signal field and data symbols encoded based on the data payload, the determined number of data symbols, and the determined number of payload bits, in which the data symbols are encoded using LDPC encoding or BCC encoding.
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公开(公告)号:US10158511B2
公开(公告)日:2018-12-18
申请号:US13887855
申请日:2013-05-06
Applicant: QUALCOMM Incorporated
Inventor: Lin Yang , Youhan Kim , Sameer Vermani , Tevfik Yucek , Hemanth Sampath
Abstract: Systems, methods, and devices for wireless communication are provided. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission over a bandwidth of 1 MHz using at least one orthogonal frequency-division multiplexing (OFDM) symbol. The apparatus further includes a transmitter configured to transmit the packet via the wireless signal having unique power spectral density characteristics.
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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:US20180098303A1
公开(公告)日:2018-04-05
申请号:US15835192
申请日:2017-12-07
Applicant: QUALCOMM Incorporated
Inventor: Xiaoxin Zhang , Ning Zhang , Carlos Horacio Aldana , Youhan Kim , Praveen Dua , Meghna Agrawal
CPC classification number: H04W64/00 , G01S1/00 , G01S13/74 , H04L5/0055 , H04L47/283 , H04W24/00 , H04W52/0209 , H04W84/12 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/22
Abstract: A ranging operation between an initiator device and a responder device may be performed by receiving, from the initiator device, a data frame including a request for the responder device to report its actual Short Interframe Space (SIFS) duration to the initiator device; creating a response frame; determining the actual SIFS duration based on the received data frame and the response frame; embedding SIFS information indicative of the actual SIFS duration of the responder device into the response frame; and sending the response frame to the initiator device.
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公开(公告)号:US09923666B2
公开(公告)日:2018-03-20
申请号:US14871892
申请日:2015-09-30
Applicant: QUALCOMM Incorporated
Inventor: Lin Yang , Bin Tian , Gang Ding , Youhan Kim , Sameer Vermani
IPC: H03M13/00 , H04L1/00 , H03M13/11 , H03M13/23 , H04B7/0456 , H04L27/12 , H04L1/06 , H04B7/0452 , H04B7/06
CPC classification number: H04L1/0041 , H03M13/1177 , H03M13/235 , H04B7/0452 , H04B7/0456 , H04B7/0669 , H04L1/0045 , H04L1/0057 , H04L1/0059 , H04L1/0075 , H04L1/0625 , H04L27/12
Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a number of data symbols for transmitting a data payload. The apparatus is configured to determine a number of payload bits for transmitting the data payload based on the determined number of data symbols. The apparatus is configured to transmit a data frame. The data frame includes a signal field and data symbols encoded based on the data payload, the determined number of data symbols, and the determined number of payload bits, in which the data symbols are encoded using LDPC encoding or BCC encoding.
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公开(公告)号:US20170353957A1
公开(公告)日:2017-12-07
申请号:US15683552
申请日:2017-08-22
Applicant: QUALCOMM Incorporated
Inventor: Youhan Kim , James S. Cho , Kai Shi , Ning Zhang
CPC classification number: H04W72/0453 , H04L1/0643 , H04L5/0023 , H04L5/0044 , H04L5/0053
Abstract: A first combination of frequency bands is selected for transmitting a first data packet, and a second, different combination of frequency bands is selected for transmitting a second data packet. A data stream is divided into a first set of data and a second set of data. The first set of data is allocated to the first combination of frequency bands, and the second set of data is allocated to the second combination of frequency bands.
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公开(公告)号:US20170261591A1
公开(公告)日:2017-09-14
申请号:US15457750
申请日:2017-03-13
Applicant: QUALCOMM Incorporated
Inventor: Ning Zhang , Xiaoxin Zhang , Youhan Kim , Carlos Horacio Aldana , Patrick Kelliher , Yen-Feng Lee
Abstract: This disclosure provides systems, methods and apparatuses for performing ranging operations between wireless devices. In some implementations, wireless devices can exchange ranging packets that include packet extensions containing a plurality of long training fields (LTFs). The wireless devices can use the LTFs in the ranging packets to obtain a plurality of round-trip time (RTT) values based on a single exchange of ranging packets. The wireless devices also can use the LTFs to estimate angle of arrival (AoA) and angle of departure (AoD) information of the exchanged ranging packets.
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