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公开(公告)号：US20210266890A1
公开(公告)日：2021-08-26
申请号：US17182048
申请日：2021-02-22
Applicant: NXP USA, Inc.
Inventor： Liwen CHU , Rui CAO , Sudhir SRINIVASA , Hongyuan ZHANG , Huiling LOU , Young Hoon KWON
Abstract: A method and an apparatus for operating a Basic Service Set (BSS) are disclosed. A method involves announcing, by a first wireless device to a second wireless device, a BSS operating channel, wherein the first wireless device has at least one of a first transmission power capability and a first bandwidth capability, the second wireless device has at least one of a second transmission power capability that is less than the first transmission power capability and a second bandwidth capability that is narrower than the first bandwidth capability, and wherein the BSS operating channel is at least one of a punctured operating channel and an unpunctured operating channel, associating, by the second wireless device, with the first wireless device via the announcement of the BSS operating channel from the first wireless device, and exchanging frames between the first wireless device and the second wireless device in the BSS operating channel.
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公开(公告)号：US20210227529A1
公开(公告)日：2021-07-22
申请号：US17139656
申请日：2020-12-31
Applicant: NXP USA, Inc.
Inventor： Liwen CHU , Rui CAO , Sudhir SRINIVASA , Hongyuan ZHANG , Young Hoon KWON , Hui-Ling LOU
IPC: H04W72/04
Abstract: Embodiments of a method and an apparatus for multi-link data transmission are disclosed. In an embodiment, a method for communications involves at a first device, transmitting, to a second device, a trigger frame that solicits at least one Physical layer Protocol Data Unit (PPDU) for uplink transmission, wherein the trigger frame includes a standard-compatible common info field that includes a trigger type field and a standard-compatible user info list field that includes at least one user info field, wherein the trigger frame includes a solicited Trigger-Based (TB) type indicator in a field in the trigger frame other than the trigger type field, and receiving, at the first device, at least one PPDU from the second device in response to the solicited TB type indicator that was transmitted in the trigger frame by the first device.
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公开(公告)号：US20240365383A1
公开(公告)日：2024-10-31
申请号：US18644734
申请日：2024-04-24
Applicant: NXP USA, INC.
Inventor： Liwen CHU , Rui CAO , Kiseon RYU , Huizhao WANG , Hongyuan ZHANG
IPC: H04W74/0816 , H04L1/00 , H04W74/08
CPC classification number: H04W74/0816 , H04L1/0068 , H04W74/0866
Abstract: A method of method of dynamic channel switching by a station (STA), including: receiving a resource unit (RU) allocation in an initial frame exchange; determining that the STA cannot operate in its operating BW covering a primary channel based upon the RU allocation; switching to secondary channel(s) per an RU allocated to it to carry out communication by the STA during a transmit opportunity (TXOP); carrying out the communication during the TXOP; and switching back to the primary channel no later than an end of the TXOP if detecting that an AP will not do the initial frame exchange with it in the secondary channel(s) within the TXOP.
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公开(公告)号：US20240237103A9
公开(公告)日：2024-07-11
申请号：US18491451
申请日：2023-10-20
Applicant: NXP USA, INC.
Inventor： Liwen CHU , Rui CAO , Kiseon Ryu , Hongyuan ZHANG
Abstract: Roaming for an ultra-high reliability (UHR) non-access point (non-AP) device with a distributed access point (AP) multi-link device (MLD), wherein the distributed AP MLD includes a plurality of AP MLDs in different devices at different locations having one medium access control (MAC) service access point (SAP), includes: receiving, by the non-AP device, an announcement from the distributed AP MLD configured to indicate that the distributed AP MLD is a distributed AP MLD with the plurality of AP MLDs in different devices wherein the non-AP device is configured to roam among the plurality of AP MLDs in different devices; associating, by the non-AP device, with a first AP MLD of the plurality of AP MLDs in different devices; and roaming, by the non-AP device, to a second AP MLD of the plurality of AP MLDs in different devices without a reassociation.
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Patent Agency Ranking
公开(公告)号：US20240138007A1
公开(公告)日：2024-04-25
申请号：US18491451
申请日：2023-10-19
Applicant: NXP USA, INC.
Inventor： Liwen CHU , Rui CAO , Kiseon Ryu , Hongyuan ZHANG
Abstract: Roaming for an ultra-high reliability (UHR) non-access point (non-AP) device with a distributed access point (AP) multi-link device (MLD), wherein the distributed AP MLD includes a plurality of AP MLDs in different devices at different locations having one medium access control (MAC) service access point (SAP), includes: receiving, by the non-AP device, an announcement from the distributed AP MLD configured to indicate that the distributed AP MLD is a distributed AP MLD with the plurality of AP MLDs in different devices wherein the non-AP device is configured to roam among the plurality of AP MLDs in different devices; associating, by the non-AP device, with a first AP MLD of the plurality of AP MLDs in different devices; and roaming, by the non-AP device, to a second AP MLD of the plurality of AP MLDs in different devices without a reassociation.
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公开(公告)号：US20210391961A1
公开(公告)日：2021-12-16
申请号：US17349801
申请日：2021-06-16
Applicant: NXP USA, Inc.
Inventor： Rui CAO , Hongyuan ZHANG , Yan ZHANG , Liwen CHU
Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves encoding bits in a Physical Layer Protocol Data Unit (PPDU) using a basic bandwidth that is smaller than a signal bandwidth, wherein the bits are duplicated within the PPDU, and transmitting the PPDU with duplicated bits in accordance with a power spectrum density (PSD) limit.
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公开(公告)号：US20210211221A1
公开(公告)日：2021-07-08
申请号：US17139671
申请日：2020-12-31
Applicant: NXP USA, Inc.
Inventor： Rui CAO , Hongyuan ZHANG , Liwen CHU
IPC: H04L1/00 , H04W72/04 , H04B7/0413 , H04L5/00
Abstract: Embodiments of a method and apparatus for communications are disclosed. In an embodiment, a method for wireless communications involves, in a punctured transmission, encoding, bits in a non-legacy preamble portion of a packet to include bandwidth information and resource allocation information, and signaling, in the packet, the bandwidth information and resource allocation information for at least one of a single-user-multiple-input multiple-output (SU-MIMO) technique, a multiple-user-multiple-input multiple-output (MU-MIMO) technique, and an orthogonal frequency-division multiple access (OFDMA) technique.
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公开(公告)号：US20240205973A1
公开(公告)日：2024-06-20
申请号：US18538277
申请日：2023-12-13
Applicant: NXP USA, Inc.
Inventor： Kiseon RYU , Liwen CHU , Rui CAO , Huizhao WANG , Hongyuan ZHANG
IPC: H04W74/0816 , H04W72/12
CPC classification number: H04W74/0816 , H04W72/12
Abstract: A method and system including: transmitting, by an access point (AP), a multi-user request to send (MU-RTS) frame requesting a non-AP station (non-AP STA) to respond with a clear to send (CTS) frame on one or more 20 MHz non-primary subchannels; and receiving, by the AP, a CTS frame from the non-AP STA on the one or more 20 MHz non-primary subchannels.
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公开(公告)号：US20220116179A1
公开(公告)日：2022-04-14
申请号：US17495367
申请日：2021-10-06
Applicant: NXP USA, Inc.
Inventor： Rui CAO , Sudhir Srinivasa , Xiayu Zheng , Hongyuan Zhang
Abstract: Various embodiments relate to a method of sounding a plurality of stations (STAs) with mixed operating bandwidths using a null data packet (NDP), wherein the bandwidth of the NDP is wider than the bandwidth of one STA, including: grouping STAs of mixed operating bandwidth in one sounding sequence by a beamformer; transmitting a null data packet announcement (NDPA) to the STAs, wherein the NDPA indicates the requested partial bandwidth channel feedback for each STA by the beamformer; transmitting the wide-bandwidth NDP to the STAs by the beamformer; transmitting beamforming report poll (BFRP) frame to the STAs to trigger uplink transmission of channel feedback reports by the beamformer; and receiving by the beamformer a partial bandwidth channel feedback within the STA's operating bandwidth from the STAs; receiving and parsing channel feedback reports from the STAs used for following steered OFDMA transmissions by the beamformer.
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