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公开(公告)号：WO2019045708A1
公开(公告)日：2019-03-07
申请号：PCT/US2017/049475
申请日：2017-08-30
Applicant: INTEL IP CORPORATION
Inventor： CHEN, Xiaogang , CARIOU, Laurent , LI, Qinghua , STACEY, Robert J. , JIANG, Feng , GHOSH, Chittabrata , GUREVITZ, Assaf
Abstract: Methods and systems for next generation Wi-Fi are disclosed. In one aspect, a method includes encoding, by an electronic device, a preamble, the preamble comprising: a green-field short training field, a first long training field, a second long training field, and a high efficiency signal A field following the short training field the first long training field and the second long training field. The method also includes encoding, by the electronic device, a frame comprising the preamble and data, and transmitting, by the electronic device, the frame over a wireless network. In some aspects, a relative polarity of the first and second training fields indicates whether the frame is a multi-user frame or a single user frame. In some other aspects, the high efficiency signal A field indicates, via an indicator having a predetermined value, whether the frame is a single user frame or a multi-user frame.
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公开(公告)号：WO2018182624A1
公开(公告)日：2018-10-04
申请号：PCT/US2017/025052
申请日：2017-03-30
Applicant: INTEL IP CORPORATION
Inventor： CHEN, Xiaogang , GUREVITZ, Assaf , LI, Qinghua , RESHEF, Ehud , AZIZI, Shahrnaz , GHOSH, Chittabrata
CPC classification number: H04L5/0044 , H04L5/0053
Abstract: This disclosure describes systems, methods, and apparatus related to narrowband tone allocation. A device may allocate a channel that includes one or more narrowband subchannels; determine a tone schedule having multiple tones associated with the channel, wherein the multiple tones comprise one or more channel guard tones, a direct current (DC) tone at about a center of each one of the one or more narrowband subchannels, and one or more subchannel guard tones, the one or more subchannel guard tones including a first subchannel guard tone at a first edge of a first narrowband subchannel, and a second subchannel guard tone at a second edge of a second narrowband subchannel. The device may cause to send a frame to one or more first devices using the one or more narrowband subchannels based on the tone schedule.
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公开(公告)号：WO2018160312A1
公开(公告)日：2018-09-07
申请号：PCT/US2018/016140
申请日：2018-01-31
Applicant: INTEL IP CORPORATION
Inventor： AVIVI, Rotem , KERNER, Michael , GUREVITZ, Assaf
Abstract: A spur cancelation system includes error circuitry, inverse spur circuitry, and injection circuitry. The error circuitry is configured to generate an error signal based at least on a first transceiver signal in a transceiver signal processing chain. The inverse spur circuitry is configured to, based at least on the error signal, determine a gain and a phase of a spur signal in the transceiver signal and generate an inverse spur signal based at least on the gain and the phase of the spur signal. The injection circuitry is configured to inject the inverse spur signal to cancel a spur in a second transceiver signal in the transceiver signal processing chain.
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公开(公告)号：WO2018118193A1
公开(公告)日：2018-06-28
申请号：PCT/US2017/056383
申请日：2017-10-12
Applicant: INTEL IP CORPORATION
Inventor： WEISMAN, Tzahi , VITURI, Shlomi , GUREVITZ, Assaf
Abstract: A wireless device configured to process Multiple-Input Multiple-Output (MIMO) data streams. The wireless device includes a Singular Value Decompostion (SVD) engine configured to diagonalize a channel matrix into a precoding matrix; an SVD rotation engine configured to phase-rotate the precoding matrix, such that the channel matrix is partially de-diagnalized; and a transmitter configured to transmit a data packet corresponding to the phase-rotated precoding matrix.
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Patent Agency Ranking5.发明申请
公开(公告)号：WO2017155649A2
公开(公告)日：2017-09-14
申请号：PCT/US2017/016709
申请日：2017-02-06
Applicant: INTEL IP CORPORATION , LI, Qinghua , GUREVITZ, Assaf , WEISMAN, Tzahi
Inventor： LI, Qinghua , GUREVITZ, Assaf , WEISMAN, Tzahi , CHEN, Xiaogang
Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.
Abstract translation: 本文一般描述接入点（AP），站（STA）和用于子载波缩放的方法的实施例。 AP可传输包括传统长训练字段（L-LTF），传统信号（L-SIG）字段和HE信号的高效率（HE）物理层会聚过程（PLCP）协议数据单元 （HE-SIG）领域。 HE-SIG可以基于被映射到包括传统子载波和HE扩展子载波的一组HE子载波的HE-SIG符号。 L-LTF可以基于映射到传统子载波的L-LTF导频符号。 L-SIG可基于映射到传统副载波的L-SIG传统符号和映射到HE扩展副载波的L-SIG扩展导频符号。 AP可以缩放L-SIG扩展导频符号的每个子载波功率以匹配L-LTF导频符号的每个子载波功率。
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公开(公告)号：WO2019190537A1
公开(公告)日：2019-10-03
申请号：PCT/US2018/025293
申请日：2018-03-29
Applicant: INTEL IP CORPORATION
Inventor： SADEGHI, Bahareh , GUREVITZ, Assaf , RESHEF, Ehud , HAREUVENI, Ofer , GINSBURG, Noam
Abstract: Methods and apparatus to facilitate configurable multi-channel communications in intelligent transportation systems for vehicular communications are disclosed. An example apparatus includes an interface to receive instructions to transmit a wideband transmission on two or more frequency channels of a frequency band; a digital processor to reserve a time slot for the wideband transmission; and a multi-channel communication determiner to configure the digital processor to transmit the wideband transmission using the two or more frequency channels; and ensure that the wideband transmission occurs concurrently on the two or more frequency channels by performing a wideband transmission synchronization.
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公开(公告)号：WO2018132261A1
公开(公告)日：2018-07-19
申请号：PCT/US2017/068589
申请日：2017-12-27
Applicant: INTEL IP CORPORATION
Inventor： CARIOU, Laurent , BRAVO, Daniel, F. , RESHEF, Ehud , GUREVITZ, Assaf , UNGER, Nir
CPC classification number: H04W16/14 , H04L5/0007 , H04L5/0037 , H04L5/0044 , H04L5/0048 , H04W84/12 , H04W84/18 , H04W88/06
Abstract: Disclosed are methods, devices, and computer readable storage mediums for allocations in a set of long training fields to provide a capability for a large number of stations to provide a short response to an access point in a highly efficient manner. One aspect is an apparatus of a high efficiency (HE) access point (AP) (HE AP) comprising memory; and processing circuitry coupled to the memory, the processing circuity configured to encode a trigger frame to indicate a range including a plurality of high efficiency (HE) station (STA) (HE STA) identifiers, the trigger frame further indicating that first HE STAs having a HE STA identifier in the range of HE STA identifiers are to transmit a response to trigger frame; and configure the HE AP to transmit the trigger frame.
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公开(公告)号：WO2018084900A1
公开(公告)日：2018-05-11
申请号：PCT/US2017/039987
申请日：2017-06-29
Applicant: INTEL IP CORPORATION
Inventor： LI, Qinghua , JIANG, Feng , CHEN, Xiaogang , NIU, Huaning , GUREVITZ, Assaf , AVITAL, Ziv
Abstract: An apparatus and related method of a wireless device are provided to encode or decode one or more indication bits in a high-efficiency signal A (HE-SIG-A) field in a preamble of a physical layer convergence protocol (PLCP) protocol data unit (PPDU) to indicate a backup mode that is a 4x long training field (LTF) with 0.8 µs cyclic prefix (CP) mode. One or more indication bits is selected from a Doppler bit, a dual carrier modulation (DCM) bit, a space-time block coding (STBC) bit, and a transmit beamforming (TxBF) bit. The PPDU is transmitted to or received from another wireless device.
Abstract translation: 提供了一种无线设备的装置和相关方法，用于对物理层的前导码中的高效信号A（HE-SIG-A）字段中的一个或多个指示比特进行编码或解码 汇聚协议（PLCP）协议数据单元（PPDU）以指示具有0.8微秒循环前缀（CP）模式的4x长训练字段（LTF）的备份模式。 从多普勒比特，双载波调制（DCM）比特，空时块编码（STBC）比特和发射波束成形（TxBF）比特中选择一个或多个指示比特。 PPDU被发送到另一个无线设备或从另一个无线设备接收。
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公开(公告)号：WO2017155649A3
公开(公告)日：2017-09-14
申请号：PCT/US2017/016709
申请日：2017-02-06
Applicant: INTEL IP CORPORATION , LI, Qinghua , GUREVITZ, Assaf , WEISMAN, Tzahi
Inventor： LI, Qinghua , GUREVITZ, Assaf , WEISMAN, Tzahi , CHEN, Xiaogang
Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.
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