公开(公告)号：US20240137836A1

公开(公告)日：2024-04-25

申请号：US18382457

申请日：2023-10-19

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Rui Cao ,  Kiseon Ryu ,  Hongyuan Zhang

IPC: H04W40/22

CPC classification number: H04W40/22 ,  H04W84/12

Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a controller configured to select a wireless relay device from multiple wireless relay devices for data exchanges between the wireless device and a second wireless device and a wireless transceiver configured to exchange data with the second wireless device through the selected wireless relay device.

公开(公告)号：US11937230B2

公开(公告)日：2024-03-19

申请号：US17349809

申请日：2021-06-16

Applicant: NXP USA, Inc.

Inventor： Rui Cao ,  Hongyuan Zhang ,  Yan Zhang ,  Liwen Chu ,  Hari Ram Balakrishnan ,  Sudhir Srinivasa

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/1263

CPC classification number: H04W72/1263 ,  H04L5/001 ,  H04W72/0453

Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves generating a Physical Layer Protocol Data Unit (PPDU) that includes a resource unit (RU), wherein a size of the RU is less than a signal bandwidth and wherein data corresponding to the RU is distributed onto a disjoint set of subcarriers included in a frequency unit, and transmitting the PPDU using the disjoint set of subcarriers in accordance with a power spectrum density (PSD) limit.

公开(公告)号：US11924668B2

公开(公告)日：2024-03-05

申请号：US17203383

申请日：2021-03-16

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Young Hoon Kwon ,  Hongyuan Zhang ,  Huiling Lou ,  Rui Cao

IPC: H04W28/02

CPC classification number: H04W28/0215

Abstract: Various embodiments relate to a method performed by a first wireless device for announcing operating capabilities to a second wireless device, wherein the first wireless device and second wireless device support a first protocol and a second protocol, including: announcing by the first device original capabilities to the second device; receiving an announcement of capabilities from the second device; receiving frames from the second device in PHY Protocol Data Units (PPDUs) following the first protocol and the second protocol; announcing by the first device a change in its capabilities to the second device; and receiving frames from the second device in PPDUs transmitted using the changed capabilities following the first protocol and the second protocol, wherein the change in the capabilities includes a change in a one of a puncture parameter, bandwidth parameter, mode and coding scheme (MCS) parameter, and a number of simultaneous streams (Nss) parameter.

公开(公告)号：US20240072924A1

公开(公告)日：2024-02-29

申请号：US18240308

申请日：2023-08-30

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Rui Cao ,  Kiseon Ryu ,  Hongyuan Zhang

IPC: H04L1/00 ,  H04W74/08

CPC classification number: H04L1/0003 ,  H04W74/0816

Abstract: Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless relay device includes a wireless transceiver configured to receive, from a first wireless device, communications data, and a controller configured to determine whether to forward the received communications data to a second wireless device.

公开(公告)号：US20240015059A1

公开(公告)日：2024-01-11

申请号：US18347769

申请日：2023-07-06

Applicant: NXP USA, Inc.

Inventor： Hari Ram Balakrishnan ,  Sudhir Srinivasa ,  Rui Cao ,  Hongyuan Zhang ,  Sergey Timofeev ,  Rong Zhang ,  Priyanka Bansal

IPC: H04L27/26 ,  H04L27/20 ,  H04L5/00

CPC classification number: H04L27/26132 ,  H04L27/2085 ,  H04L5/0007

Abstract: A method and system for generating an extended range (ER) physical layer protocol data unit (PPDU) is disclosed. The PPDU has a legacy portion of the ER PPDU which comprises one or more of a legacy short training field (L-STF), a legacy long training field (L-LTF), and a universal signaling (U-SIG) field and an ER portion of the ER PPDU which is appended to the legacy portion. The ER portion comprises one or more repetitions of a ER short training field (ER-STF), a ER long training field (ER-LTF), a ER-signal (ER-SIG) field, and a ER data field. In an example, signals indicative of the one or more repetitions for a same field are combined by a receiver to increase a signal to noise ratio of a field.

公开(公告)号：US20240008082A1

公开(公告)日：2024-01-04

申请号：US18216500

申请日：2023-06-29

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Rui Cao ,  Hongyuan Zhang ,  Kiseon Ryu ,  Huizhao Wang

IPC: H04W74/08 ,  H04W48/12

CPC classification number: H04W74/0816 ,  H04W48/12

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.

公开(公告)号：US11751191B2

公开(公告)日：2023-09-05

申请号：US17323811

申请日：2021-05-18

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Yi-Ling Chao ,  Hongyuan Zhang ,  Huiling Lou ,  Young Hoon Kwon ,  Rui Cao

IPC: H04W72/044 ,  H04W72/0453 ,  H04W52/36 ,  H04W52/54 ,  H04B7/0426 ,  H04B7/0452

CPC classification number: H04W72/0473 ,  H04W52/365 ,  H04W52/367 ,  H04W52/54 ,  H04W72/0453 ,  H04B7/0426 ,  H04B7/0452

Abstract: Various embodiments relate to a method performed by a station to identify the maximum allowed transmit power spectral density (PSD) of a basic service set (BSS), including: receiving, by the station, a first field from an access point (AP) of the BSS, wherein the first field indicates that the BSS bandwidth is set to M times a unit channel bandwidth; receiving, by the station, a set of second fields from the AP, wherein the set of second fields includes K fields corresponding to K channels and wherein each of the K second fields indicates the maximum allowed transmit PSD for the K channels and the bandwidth of the channel is the unit channel bandwidth; and identifying, by the station, the maximum allowed transmit PSD of the M channels of the BSS bandwidth from the first M consecutive second fields.

公开(公告)号：US11722354B2

公开(公告)日：2023-08-08

申请号：US17386242

申请日：2021-07-27

Applicant: NXP USA, Inc.

Inventor： Rui Cao ,  Sudhir Srinivasa ,  Hongyuan Zhang ,  Liwen Chu

IPC: H04L27/34 ,  H04W28/06

CPC classification number: H04L27/3461 ,  H04W28/06

Abstract: In an 802.11be wireless system, a receiving station device signals a packet padding capability in a wireless area network in accordance with an Extremely High Throughput (EHT) communication protocol by constructing a MAC control management frame to include an EHT capability element indicating whether a packet extension value longer than 16 μs is supported by the receiving station device, where one or more fields in the EHT capability element include (1) a common nominal packet padding field having a plurality of values to signal different packet extension values for use with all transmission constellations, spatial streams Nss, and resource unit (RU) allocations supported by the first STA device, including at least one packet extension value longer than 16 μs; and/or (2) a PHY packet extension threshold (PPET) field comprising a plurality of PPET values to signal packet extension values including at least one packet extension value longer than 16 μs.

公开(公告)号：US11716770B2

公开(公告)日：2023-08-01

申请号：US17523805

申请日：2021-11-10

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Young Hoon Kwon ,  Hongyuan Zhang ,  Huiling Lou ,  Rui Cao

IPC: H04W74/08 ,  H04W72/12 ,  H04W84/12 ,  H04W80/02

CPC classification number: H04W74/085 ,  H04W72/12 ,  H04W74/0866 ,  H04W80/02 ,  H04W84/12

Abstract: Embodiments of a device and a method for multi-link operations are disclosed. In an embodiment, a device includes a processor configured to perform a first backoff operation on a first link and a second backoff operation on a second link of a multi-link device (MLD) that has a non-simultaneous transmission and reception capability (NSTR MLD), and transmit a first Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU) on the first link at a first start time after the first backoff operation and a second PPDU on the second link at a second start time after the second backoff operation.

公开(公告)号：US11711828B2

公开(公告)日：2023-07-25

申请号：US17229340

申请日：2021-04-13

Applicant: NXP USA, INC.

Inventor： Young Hoon Kwon ,  Liwen Chu ,  Sudhir Srinivasa ,  Hongyuan Zhang ,  Rui Cao

IPC: H04W72/02 ,  H04W72/51 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04W72/51 ,  H04L5/0092 ,  H04W72/23

Abstract: Communications may be effected in a communications environment involving a plurality channels having disparate bandwidth and channel center frequency indexes. Communications are effected using first communications type with a first channel bandwidth and first channel center frequency index. Communications are also effected via a second communications type using a separate set of fields indicating a second channel bandwidth and a second channel center frequency index, the second channel bandwidth being different than the first channel bandwidth and the second channel center frequency index being different than the first channel center frequency index. The channel center frequency index and bandwidth communicated in each communication may utilize separate subfields.