-
公开(公告)号：WO2022020610A1
公开(公告)日：2022-01-27
申请号：PCT/US2021/042805
申请日：2021-07-22
Applicant: QUALCOMM INCORPORATED
Inventor： YANG, Lin , TIAN, Bin , KIM, Youhan
IPC: H04W74/08
Abstract: This disclosure provides methods, devices and systems for clear channel assessment (CCA). In one aspect a device performs a first clear channel assessment (CCA) check on a primary subchannel of a channel having a total bandwidth greater than or equal to 40 megahertz (MHz), a plurality of subchannels of the channel collectively spanning the total bandwidth of the channel, the plurality of subchannels including the primary subchannel and one or more secondary subchannels, the primary subchannel and the one or more secondary subchannels each having a bandwidth of 20 MHz, performs, on each of the one or more secondary subchannels, a respective second CCA check, and transmits a communication on the channel based on a status of each of the primary subchannel and the one or more secondary subchannels that is based on the performance of the respective second CCA check or the first CCA check.
-
公开(公告)号：WO2021061911A1
公开(公告)日：2021-04-01
申请号：PCT/US2020/052391
申请日：2020-09-24
Applicant: QUALCOMM INCORPORATED
Inventor： CHO, James Simon , KIM, Youhan , NG, Tao-Fei Samuel , JONES, IV, Vincent Knowles
Abstract: This disclosure provides methods, devices and systems for acknowledgement and retransmission, and more specifically, to methods, devices and systems that enable a secondary wireless channel to provide acknowledgements of data transmitted on a primary wireless channel concurrently with the reception of additional data on the primary wireless channel. In some implementations, a transmitting device may transmit wireless packets including multiple codewords to a receiving device via a first wireless channel. The receiving device may attempt to decode the received codewords based on primary information in the codewords. The receiving device may then transmit to the transmitting device, via a second wireless channel, a codeword acknowledgement that identifies codewords that the receiving device did not successfully decode. The transmitting device may then transmit parity information to the receiving device via the first wireless channel that aids the receiving device in decoding the identified codewords.
-
公开(公告)号：WO2019204591A1
公开(公告)日：2019-10-24
申请号：PCT/US2019/028105
申请日：2019-04-18
Applicant: QUALCOMM INCORPORATED
Inventor： VERMA, Lochan , TIAN, Bin , VERMANI, Sameer , YANG, Lin , KIM, Youhan
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.
-
公开(公告)号：WO2017181046A3
公开(公告)日：2017-10-19
申请号：PCT/US2017/027681
申请日：2017-04-14
Applicant: QUALCOMM INCORPORATED
Inventor： CHENG, Chao , ZHANG, Ning , KIM, Youhan , CHEN, Chin-Hung
Abstract: The disclosure provides for rate adaptation based on channel power tracking in wireless communications. An Access Point (AP) may measure a full-band channel quality information (CQI) for a plurality of wireless stations associated with the AP and allocate a sub-band resource unit from the plurality of sub-band resource units to a wireless station based on the full-band CQI. Aspects of the disclosure also include techniques for adjusting a data rate associated with the wireless station based on a channel power of the sub-band resource unit.
-
公开(公告)号：WO2017083002A1
公开(公告)日：2017-05-18
申请号：PCT/US2016/051340
申请日：2016-09-12
Applicant: QUALCOMM INCORPORATED
Inventor： CHEN, Chin-Hung , ZHANG, Ning , KIM, Youhan
IPC: H04B7/06
CPC classification number: H04L25/0202 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04L27/2601 , H04W72/0413 , H04W72/042 , H04W84/12
Abstract: A method for determining uplink channel information includes sending a trigger frame from an access point of a wireless network to a plurality of stations in the wireless network. The method also includes receiving an uplink transmission from at least one station of the plurality of stations in response to sending the trigger frame. The method further includes determining uplink channel data based on the uplink transmission. The method also includes sending the uplink channel data to the at least one station. The uplink channel data is usable by the at least one station to send data to the access point.
Abstract translation: 用于确定上行链路信道信息的方法包括从无线网络的接入点向无线网络中的多个站发送触发帧。 该方法还包括响应于发送触发帧而从多个站中的至少一个站接收上行链路传输。 该方法还包括基于上行链路传输来确定上行链路信道数据。 该方法还包括将上行链路信道数据发送到至少一个站。 上行链路信道数据可由至少一个站点用来向接入点发送数据。
-
Patent Agency Ranking
公开(公告)号：WO2017083000A1
公开(公告)日：2017-05-18
申请号：PCT/US2016/050983
申请日：2016-09-09
Applicant: QUALCOMM INCORPORATED
Inventor： CHEN, Chin-Hung , ZHANG, Ning , KIM, Youhan
IPC: H04B7/06
CPC classification number: H04L25/0202 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04L27/2601 , H04W72/0413 , H04W72/042 , H04W84/12
Abstract: A method for sending data includes receiving, at a first station of a plurality of stations, a trigger frame from an access point of a wireless network. The method also includes determining a downlink channel estimation based on the trigger frame and sending the downlink channel estimation to the access point. The method further includes receiving uplink channel data from the access point in response to sending the downlink channel estimation. The method also includes sending data to the access point based on the uplink channel data.
Abstract translation: 一种用于发送数据的方法包括：在多个站的第一站处接收来自无线网络的接入点的触发帧。 该方法还包括基于触发帧确定下行链路信道估计并将下行链路信道估计发送到接入点。 该方法还包括响应于发送下行链路信道估计而从接入点接收上行链路信道数据。 该方法还包括基于上行链路信道数据向接入点发送数据。
-
公开(公告)号：WO2016164517A2
公开(公告)日：2016-10-13
申请号：PCT/US2016/026332
申请日：2016-04-07
Applicant: QUALCOMM INCORPORATED
Inventor： BHARADWAJ, Arjun , KIM, Youhan , PATI, Vishvabhusan , TIAN, Bin , VERMANI, Sameer
CPC classification number: H04W28/06 , H04L1/0042 , H04L1/1685
Abstract: A wireless device may selectively add padding to an end of a data transmission in order to provide adequate time for a receiving device to process the transmitted data and transmit feedback related to the transmitted data. A wireless device may identify a total amount of data capable of being transmitted in a transmission, and determine a number of data bits to be transmitted in the transmission. An amount of padding may be selected based on a proportion of the total amount of data capable of being transmitted and the number of data bits. In some examples, a preamble for a feedback transmission may be transmitted concurrently with processing of the received transmission.
Abstract translation: 无线设备可以选择性地将填充添加到数据传输的结尾，以便为接收设备提供足够的时间来处理传输的数据并传输与传输的数据相关的反馈。 无线设备可以识别能够在传输中传输的数据的总量，并且确定要在传输中传输的数据比特的数量。 可以基于能够传输的数据的总量和数据比特的数量的比例来选择填充量。 在一些示例中，用于反馈传输的前导码可以与接收到的传输的处理同时传输。
-
公开(公告)号：WO2016164279A1
公开(公告)日：2016-10-13
申请号：PCT/US2016/025782
申请日：2016-04-02
Applicant: QUALCOMM INCORPORATED
Inventor： BHARADWAJ, Arjun , TIAN, Bin , VERMANI, Sameer , KIM, Youhan , PATI, Vishvabhusan
CPC classification number: H04W72/0446 , H04B7/0452 , H04L1/0005 , H04L1/0008 , H04L1/0011 , H04L1/0042 , H04L1/1685 , H04L5/0044 , H04W84/12
Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to Wi-Fi systems including frame extensions in transmission frames. Lengths of frame extensions may be determined based on transmission bandwidths and transmission data rates of the frames. Lengths of frame extensions may also be determined based on an amount of useful data in a final symbol of the frame. An access point (AP) may determine frame extension lengths for use in transmitting to stations (STAs) based on reception capabilities of the STAs. An AP may determine frame extension lengths for STAs to use in transmitting frames.
Abstract translation: 本公开的某些方面通常涉及无线通信，更具体地涉及包括传输帧中的帧扩展的Wi-Fi系统。 可以基于帧的传输带宽和传输数据速率来确定帧扩展的长度。 帧扩展的长度还可以基于帧的最终符号中的有用数据的量来确定。 接入点（AP）可以基于STA的接收能力来确定用于向站（STA）发送的帧扩展长度。 AP可以确定STA在发送帧中使用的帧扩展长度。
-
公开(公告)号：WO2016054389A1
公开(公告)日：2016-04-07
申请号：PCT/US2015/053515
申请日：2015-10-01
Applicant: QUALCOMM INCORPORATED
Inventor： YANG, Lin , TIAN, Bin , DING, Gang , KIM, Youhan , VERMANI, Sameer
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.
Abstract translation: 提供了一种用于无线通信的方法，装置和计算机可读介质。 在一个方面，该装置被配置为确定用于发送数据有效载荷的多个数据符号。 该装置被配置为基于所确定的数据符号数量来确定用于发送数据有效载荷的有效载荷比特数。 该装置被配置为发送数据帧。 数据帧包括信号字段和基于数据有效载荷，所确定的数据符号数量以及确定的有效载荷比特数进行编码的数据符号，其中使用LDPC编码或BCC编码对数据符号进行编码。
-
10.发明申请APPARATUS AND METHOD FOR APPLYING SPECIAL SPECTRAL MASKS FOR TRANSMISSION SUB GIGAHERTZ BANDS 审中-公开用于传输SUB GIGAHERTZ BANDS的特殊光谱掩模的装置和方法
公开(公告)号：WO2013169750A1
公开(公告)日：2013-11-14
申请号：PCT/US2013/039917
申请日：2013-05-07
Applicant: QUALCOMM INCORPORATED
Inventor： YANG, Lin , KIM, Youhan , VERMANI, Sameer , YUCEK, Tevfik , SAMPATH, Hemanth
CPC classification number: H04B1/707 , H04B17/102 , H04B17/26 , H04B17/318 , H04L5/0066
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 a power spectral density. The power spectral density within ±0.45 MHz of a center frequency of the wireless signal is at a first power spectral density level. The power spectral density between 0.45 MHz and 0.6 MHz from the center frequency of the wireless signal and between -0.45 MHz and -0.6 MHz from the center frequency of the wireless signal is less than the first power spectral density level. The power spectral density between 0.6 MHz and 1 MHz from the center frequency of the wireless signal and between -0.6 MHz and -1 MHz from the center frequency of the wireless signal is less than -20 dBr with respect to the first power spectral density level. The power spectral density between 1 MHz and 1.5 MHz from the center frequency of the wireless signal and between -1 MHz and -1.5 MHz from the center frequency of the wireless signal is less than -28 dBr with respect to the first power spectral density level. The power spectral density of greater than ±1.5 MHz from the center frequency of the wireless signal is less than -40 dBr with respect to the first power spectral density level.
Abstract translation: 提供了用于无线通信的系统，方法和设备。 一方面，提供一种无线通信装置。 该装置包括处理器，其被配置为生成用于经由无线信号传输的分组。 使用至少一个正交频分复用（OFDM）符号，生成用于在1MHz的带宽上传输的分组。 所述装置还包括被配置为经由具有功率谱密度的无线信号发送分组的发射机。 无线信号的中心频率的±0.45MHz内的功率谱密度处于第一功率谱密度级。 从无线信号的中心频率和距无线信号的中心频率-0.45MHz与-0.6MHz之间的功率谱密度小于第一功率谱密度级。 与无线信号的中心频率相比，无线信号的中心频率在0.6MHz与1MHz之间的功率谱密度相对于第一功率谱密度等级小于-20dBr 。 从无线信号的中心频率和无线信号的中心频率-1MHz到-1.5MHz之间的1MHz和1.5MHz之间的功率谱密度相对于第一功率谱密度级小于-28dBr 。 与无线信号的中心频率相比大于±1.5MHz的功率谱密度相对于第一功率谱密度级小于-40dBr。
-
-
-
-
-
-
-
-
-
Search Results
160
records
(took 0.061 seconds)
