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21.
公开(公告)号:US20180070349A1
公开(公告)日:2018-03-08
申请号:US15549071
申请日:2016-03-03
Applicant: Intel IP Corporation
Inventor: Po-Kai Huang , Shahrnaz Azizi , Thomas J. Kenney , Chittabrata Ghosh , Robert J. Stacey
CPC classification number: H04W72/048 , H04L5/0007 , H04L5/0037 , H04L5/0053 , H04L67/12 , H04L69/18 , H04W72/0413 , H04W72/042 , H04W74/006 , H04W74/04 , H04W84/12
Abstract: Apparatus, computer readable medium, and method for sensing and deferral for orthogonal frequency division multiple access in a wireless local-area networks are disclosed. An apparatus of an access point is disclosed. The apparatus comprising memory and processing circuitry coupled to the memory. The processing circuitry may configured to configure the access point to sense a plurality of channels of a bandwidth, and determine a resource allocation for one or more stations for an uplink (UL) orthogonal frequency division multiple access (OFDMA) transmission opportunity. The resource allocation may include one or more channels of the plurality of channels that are sensed as not being busy. The processing circuitry may be further configured to encode a trigger frame comprising the resource allocation to initiate the UL OFDMA transmission opportunity and configure the access point to transmit the trigger fame to the one or more stations.
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22.
公开(公告)号:US20180041967A1
公开(公告)日:2018-02-08
申请号:US15675475
申请日:2017-08-11
Applicant: Intel IP Corporation
Inventor: Po-Kai Huang , Robert J. Stacey , Qinghua Li , Rongzhen Yang
CPC classification number: H04W52/18 , H04L69/22 , H04W52/247 , H04W52/248 , H04W74/002 , H04W74/0816 , H04W84/12
Abstract: Apparatus, computer readable medium, and method for generating and receiving signal fields in a high efficiency wireless local-area network (WLAN) are disclosed. A high-efficiency wireless local-area network (HEW) device including circuitry is disclosed. The circuitry may be configured to: receive a physical (PHY) header or media access control (MAC) header from a second HEW station, wherein the PHY header or MAC header comprises an indication of a spatial reuse opportunity and a defer duration; adjust one or more parameters to determine whether or not the wireless medium is in use; and determine whether to transmit within the spatial reuse opportunity based on the adjusted one or more parameters. The circuitry may be configured to adjust one or more parameters to determine whether or not the wireless medium is in use in where the parameters are signal detect (SD) threshold, a mid-packet detection (MPD) threshold, and an energy detection (ED) threshold.
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公开(公告)号:US09882695B2
公开(公告)日:2018-01-30
申请号:US15394069
申请日:2016-12-29
Applicant: Intel IP Corporation
Inventor: Shahrnaz Azizi , Thomas J. Kenney , Guoqing C. Li , Eldad Perahia , Robert J. Stacey
CPC classification number: H04L5/0053 , H04B7/0452 , H04L1/0003 , H04L1/0006 , H04L5/003 , H04L5/0048 , H04L27/2601 , H04W72/1278 , H04W84/12
Abstract: Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.
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公开(公告)号:US09867210B2
公开(公告)日:2018-01-09
申请号:US15280782
申请日:2016-09-29
Applicant: Intel IP Corporation
Inventor: Shahrnaz Azizi , Thomas J. Kenney , Guoqing C. Li , Eldad Perahia , Robert J. Stacey
CPC classification number: H04L5/0053 , H04B7/0452 , H04L1/0003 , H04L1/0006 , H04L5/003 , H04L5/0048 , H04L27/2601 , H04W72/1278 , H04W84/12
Abstract: Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.
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公开(公告)号:US09847896B2
公开(公告)日:2017-12-19
申请号:US14747191
申请日:2015-06-23
Applicant: Intel IP Corporation
Inventor: Shahrnaz Azizi , Robert J. Stacey , Thomas J. Kenney , Eldad Perahia
CPC classification number: H04L27/2613 , H04L1/00 , H04L1/08 , H04W84/12
Abstract: A high-efficiency (HE) wireless local area network (HEW) device including circuitry is disclosed. The circuitry may be configured generate a HE packet comprising a legacy signal field (L-SIG) followed by one or more HE signal fields, where the one or more HE signal fields include a HE-SIG-A field, and where a modulation and coding scheme (MCS) sub-field of the HE-SIG-A field jointly signals a MCS and one or more other sub-fields. The one or more other sub-fields may be a low-density parity check (LDPC) or a space-time block coding (STBC). The circuitry may be configured to generate the L-SIG to signal to the one or more HEW devices either a first packet format of the HE packet or a second packet format of the HE packet, where a length of the L-SIG modulo 3 is used to signal the first packet format or the second packet format.
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公开(公告)号:US09832792B2
公开(公告)日:2017-11-28
申请号:US14862197
申请日:2015-09-23
Applicant: Intel IP Corporation
Inventor: Chittabrata Ghosh , Robert J. Stacey
CPC classification number: H04W74/0833 , H04L5/0007 , H04W84/12
Abstract: Methods, apparatuses, and computer readable media for pre-association frame exchange using random access are disclosed. An apparatus of a high-efficiency wireless local-area network (HEW) master station is disclosed. The apparatus includes transceiver circuitry and processing circuitry which may be configured to generate a trigger frame for uplink random access (TF-R), and transmit the TF-R. The transceiver circuitry and processing circuitry may be further configured to receive one or more responses in accordance with orthogonal frequency division multiple-access (OFDMA) to the trigger frame from one or more pre-association stations where the responses comprise pre-association identifiers corresponding to the one or more pre-association stations. Moreover, the transceiver circuitry and processing circuitry may be further configured to generate one or more acknowledgements to the one or more pre-association stations, and transmit the acknowledgements in accordance with OFDMA to the one or more pre-association stations.
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27.
公开(公告)号:US09729284B2
公开(公告)日:2017-08-08
申请号:US14669150
申请日:2015-03-26
Applicant: Intel IP Corporation
Inventor: Chittabrata Ghosh , Robert J. Stacey
CPC classification number: H04L5/0023 , H04L5/0007 , H04W72/0453 , H04W84/12
Abstract: Embodiments of a high-efficiency Wi-Fi (HEW) station, access point (AP), and method for communication in a wireless network are generally described herein. In some embodiments, the HEW AP may transmit a resource allocation message to indicate an allocation of sub-channels to one or more HEW stations for uplink data transmissions. Information included in the resource allocation message may include various indicators related to full or partial allocation of the sub-channels and whether equal allocations are made for each of the HEW stations. A sub-channel mapping block may also be included to indicate how the sub-channels are assigned to the HEW stations. In some cases, the length of the sub-channel mapping block may vary based at least partly on the indicators included in the message.
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28.
公开(公告)号:US20170201359A1
公开(公告)日:2017-07-13
申请号:US15315218
申请日:2014-12-22
Applicant: Intel IP Corporation
Inventor: Qinghua Li , Xiaogang Chen , Yuan Zhu , Xintian E. Lin , Honggang Li , Robert J. Stacey
CPC classification number: H04L5/0048 , H04L27/2611 , H04W72/0453 , H04W84/12
Abstract: Methods, apparatuses, and computer-readable media for a wireless communication device for transmitting pilots in a wireless local area network are disclosed. The method on a wireless communication device includes receiving one or more packets in a transmit opportunity (TXOP), wherein the one or more packets indicate a schedule for the wireless communications device to transmit. The method further includes transmitting a first pilot carrier in a lower subcarrier of a frequency allocation, and transmitting a second pilot carrier in a higher subcarrier of the frequency allocation. The first pilot and the second pilot may be transmitted simultaneously or in alternative time periods. The lower subcarrier may be the lower one-third of the frequency allocation, and the higher subcarrier may be the higher one-third of the frequency allocation. The wireless communication device may transmit and receive in accordance with OFDMA and 802.11.
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公开(公告)号:US09705643B2
公开(公告)日:2017-07-11
申请号:US14563406
申请日:2014-12-08
Applicant: Intel IP Corporation
Inventor: Guoqing C. Li , Robert J. Stacey
CPC classification number: H04L1/1854 , H04L1/1685 , H04L5/0023 , H04L5/0037 , H04L5/0055 , H04L5/0094 , H04W72/1289 , H04W84/12
Abstract: Embodiments of a system and method for acknowledging frames in a wireless network are generally described herein. In some embodiments, a wireless communication device may include a transmit/receive unit configured to receive data from a sender. In some embodiments, the transmit/receive unit may be configured to receive a schedule. The transmit/receive unit may be further configured to acknowledge (ACK) the data in a first scheduled transmission to the sender. The first scheduled transmission to the sender may be determined based on the schedule. In some embodiments, the acknowledgement may be an acknowledgement frame or a block acknowledgment frame. The scheduled transmission to the sender may be determined based on the schedule.
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公开(公告)号:US20170005709A1
公开(公告)日:2017-01-05
申请号:US15113214
申请日:2014-06-30
Applicant: INTEL IP CORPORATION
Inventor: Guoqing C. Li , Robert J. Stacey , Hujun Yin
CPC classification number: H04B7/0452 , H04L1/00 , H04W28/06 , H04W72/1284 , H04W72/1289
Abstract: Generally discussed herein are systems and apparatuses that may include UL or DL using Multiple User (MU) Multiple Input Multiple Output (MIMO) or frequency multiplexing. The disclosure also includes techniques of using the systems and apparatuses. According to an example, a technique may include transmitting, using a plurality of spatial streams or sub-channels, a Schedule frame (SCH) to a plurality of Stations (STAs) to schedule an Uplink (UL) transmission, or transmitting, using the plurality of spatial streams or sub-channels, a Block Acknowledge (BA) to the plurality of STAs, in response to receiving a Downlink (DL) transmission from the plurality of STAs.
Abstract translation: 这里通常讨论的是可以包括使用多用户(MU)多输入多输出(MIMO)或频率复用的UL或DL的系统和装置。 本公开还包括使用系统和设备的技术。 根据示例,技术可以包括使用多个空间流或子信道向多个站(STA)发送调度帧(SCH)以调度上行链路(UL)传输,或者使用 响应于从多个STA接收到下行链路(DL)传输,多个空间流或子信道,到多个STA的块确认(BA)。
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