公开(公告)号：US11882062B2

公开(公告)日：2024-01-23

申请号：US17349801

申请日：2021-06-16

Applicant: NXP USA, Inc.

Inventor： Rui Cao ,  Hongyuan Zhang ,  Yan Zhang ,  Liwen Chu

IPC: H04B7/00 ,  H04W72/12 ,  H04L5/00 ,  H04L1/24 ,  H04W76/15

CPC classification number: H04L5/0007 ,  H04L1/246 ,  H04L5/0048 ,  H04W76/15

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.

公开(公告)号：US11831423B2

公开(公告)日：2023-11-28

申请号：US17139671

申请日：2020-12-31

Applicant: NXP USA, Inc.

Inventor： Rui Cao ,  Hongyuan Zhang ,  Liwen Chu

IPC: H04L1/00 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/04 ,  H04W72/044

CPC classification number: H04L1/0013 ,  H04B7/0413 ,  H04L5/0007 ,  H04W72/044

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.

公开(公告)号：US11743016B2

公开(公告)日：2023-08-29

申请号：US17239363

申请日：2021-04-23

Applicant: NXP USA, Inc.

Inventor： Young Hoon Kwon ,  Rui Cao ,  Liwen Chu ,  Hongyuan Zhang ,  Hari Ram Balakrishnan ,  Sudhir Srinivasa ,  Sayak Roy ,  Xiayu Zheng

IPC: H04L5/00 ,  H04L1/1867 ,  H04L1/00 ,  H04L25/02 ,  H04W72/0453 ,  H04W72/044 ,  H04W74/08

CPC classification number: H04L5/0094 ,  H04L1/0026 ,  H04L1/0068 ,  H04L1/1896 ,  H04L25/0226 ,  H04L5/0053 ,  H04W72/046 ,  H04W72/0453 ,  H04W74/0816

Abstract: Embodiments of a method and an apparatus for wireless communications are disclosed. In an embodiment, a method for wireless communications involves operating an Access Point (AP) using feedback subcarrier indices for a bandwidth up to 320 MHz, signaling, by the AP, to a client, a subcarrier location set on which a feedback report is solicited, signaling, by the AP, to a client, a feedback type solicited on the subcarrier location, and indicating, by the client, feedback subcarrier indices for the subcarrier location set via the feedback report solicited by the AP.

公开(公告)号：US11638238B2

公开(公告)日：2023-04-25

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: H04W4/00 ,  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.

公开(公告)号：US11533209B2

公开(公告)日：2022-12-20

申请号：US16907848

申请日：2020-06-22

Applicant: NXP USA, INC.

Inventor： Yan Zhang ,  Hongyuan Zhang ,  Rui Cao

IPC: H04W24/04 ,  H04W72/02 ,  H04W80/02 ,  H04L27/26 ,  H04L5/00 ,  H04W24/08

Abstract: A communication device receives a physical layer (PHY) protocol data unit (PPDU). The PPDU includes i) a PHY preamble and ii) PHY data portion that includes one or more PHY midambles, and the PHY preamble includes i) an indication of a length of the PPDU, and ii) an indication of a periodicity of PHY midambles in the PHY data portion. The communication device calculates a number of PHY midambles in the PPDU using i) the indication of the length of the PPDU, and ii) the indication of the periodicity of PHY midambles. The communication device calculates a reception time for the PPDU using the calculated number of PHY midambles, and processes the PPDU using the calculated reception time.

公开(公告)号：US11343026B1

公开(公告)日：2022-05-24

申请号：US16689107

申请日：2019-11-20

Applicant: NXP USA, Inc.

Inventor： Liwen Chu ,  Rui Cao ,  Hongyuan Zhang ,  Hui-Ling Lou ,  Yan Zhang

IPC: H04W84/12 ,  H04L1/18

Abstract: A method for Wireless Local-Area Network (WLAN) communication in a WLAN device includes receiving from a remote WLAN device an announcement of a maximal Hybrid Automatic Repeat Request (HARQ) buffering capability of a receiver of the remote WLAN device. A HARQ Physical-layer Protocol Data Unit (HARQ PPDU), which includes one or more HARQ coding units, is constructed in the WLAN device in response to the announcement. The HARQ PPDU is transmitted from the WLAN device to the remote WLAN device. One or more of the HARQ coding units are retransmitted in response to a request from the remote WLAN device.

公开(公告)号：US20220029872A1

公开(公告)日：2022-01-27

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

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：US20210360472A1

公开(公告)日：2021-11-18

申请号：US17319060

申请日：2021-05-12

Applicant: NXP USA, Inc.

Inventor： Rui Cao ,  Sudhir Srinivasa ,  Hongyuan Zhang ,  Mao Yu

IPC: H04W28/06 ,  H04W72/04 ,  H04L29/06 ,  H04L27/26

Abstract: In an 802.11be wireless system, data units are generated for transmission by configuring a transmitting device to process encoding parameters, including a first encoding parameter NSD and a second encoding parameter NSD,short, to select a padding boundary from pre-defined padding boundaries in the last symbol that will most closely include the number of information bits NEXCESS in the last symbol and to append padding bits to the number of information bits NEXCESS to fill up to the selected padding boundary in the last symbol, thereby generating pre-encoded data bits which are encoded for data transmission, where at least the first encoding parameter NSD is specified for an aggregated resource unit size that is allowed under the 802.11be protocol as a sum of NSD values for at two other resource units.

公开(公告)号：US10944502B2

公开(公告)日：2021-03-09

申请号：US16295499

申请日：2019-03-07

Applicant: NXP USA, Inc.

Inventor： Yakun Sun ,  Hongyuan Zhang ,  Rui Cao ,  Sudhir Srinivasa

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/26

Abstract: Systems, apparatuses and methods described herein provide a method for padding a signal extension of orthogonal frequency-division multiplexing (OFDM) symbols. A transceiver may obtain a plurality of data symbols for transmission, and determine that a number of information bits for a last symbol of the plurality of data symbols is not an integer value. A special padding rule may be applied to add padding bits to the last symbol. A number of coded bits for the last symbol may be determined when the number of information bits for the last symbol has changed, and the plurality of data symbols for data transmission may be encoded based on the determined number of coded bits for the last symbol.

公开(公告)号：US10904058B2

公开(公告)日：2021-01-26

申请号：US16673523

申请日：2019-11-04

Applicant: NXP USA, Inc.

Inventor： Hongyuan Zhang ,  Xiayu Zheng ,  Rui Cao ,  Mingguang Xu ,  Sudhir Srinivasa ,  Jie Huang

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04B7/06

Abstract: A boundary within a last orthogonal frequency division multiplexing (OFDM) symbol of a PHY data unit is determined. Pre-encoder padding bits are added to a set of information bits to generate a set of padded information bits such that the set of padded information bits, after being encoded, fill one or more OFDM symbols up to the boundary within the last OFDM symbol. The set of padded information bits are encoded to generate a set of coded bits. A PHY preamble is generated to include a subfield that indicates the boundary. The one or more OFDM symbols are generated to include (i) the set of coded information bits in the one or more OFDM symbols up to the boundary to allow a receiving device to stop decoding the one or more OFDM symbols at the boundary, and (ii) post-encoder padding bits in the last OFDM symbol following the boundary.