公开(公告)号：US20240106691A1

公开(公告)日：2024-03-28

申请号：US18370863

申请日：2023-09-20

Applicant: MediaTek Inc.

Inventor： Shengquan Hu ,  Jianhan Liu ,  Thomas Edward Pare, Jr.

IPC: H04L27/36

CPC classification number: H04L27/362

Abstract: Techniques pertaining to signaling and padding methods for probabilistic shaping quadrature amplitude modulation (QAM) transmission in wireless communications are described. An apparatus (e.g., station (STA)) generates a packet using a probabilistic shaping (PS) 4096 quadrature amplitude modulation (4096QAM) such that a length of the packet is extended. The apparatus then transmits the packet in a wireless communication.

公开(公告)号：US11019559B2

公开(公告)日：2021-05-25

申请号：US15372983

申请日：2016-12-08

Applicant: MEDIATEK INC.

Inventor： Tianyu Wu ,  Chao-Chun Wang ,  Chien-Fang Hsu ,  James June-Ming Wang ,  Jianhan Liu ,  Thomas Edward Pare, Jr.

IPC: H04W48/10 ,  H04W48/16 ,  H04W84/12 ,  H04W72/02

Abstract: A method of very high throughput (VHT) operation information subfields design for IEEE 802.11 WLAN is proposed. The VHT operation information subfields comprise a channel width, a channel center frequency segment 0 (CCFS0), and a channel center frequency segment 1 (CCFS1). Multiple definitions of the VHT operation information subfields have been adopted by different access points (AP)s and wireless stations (STAs). In accordance with one novel aspect, upon receiving the VHT operation information element broadcasted by an AP, an STA will first check the channel width indicated by the AP. The STA then follows different definitions under different channel widths. Under such method, the STA can support up to 160 MHz operation mode with APs following different definitions and operating up to 160 MHz mode.

公开(公告)号：US10211948B2

公开(公告)日：2019-02-19

申请号：US15290135

申请日：2016-10-11

Applicant: MEDIATEK INC.

Inventor： Jianhan Liu ,  Shengquan Hu ,  Tianyu Wu ,  Thomas Edward Pare, Jr.

IPC: H04L1/00 ,  H04L27/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12

Abstract: A new lower density parity check (LDPC) tone mapper is proposed when DCM is applied for a given resource unit (RU) when LDPC is used as the channel control coding. For HE PPDU transmission with DCM, LDPC encoded streams are first modulated by a DCM constellation mapper. The modulated symbols of the lower half of the frequency segment and the modulated symbols of the upper half of the frequency segment are modulated using the same LDPC encoded bits using DCM mapping. The modulated symbols of the lower half of the frequency segment are mapped to lower half of the data subcarriers using DCM LDPC tone mapper. The modulated symbols of the upper half of the frequency segment are mapped to upper half of the data subcarriers using the same DCM LDPC tone mapper. Maximum frequency diversity for DCM can be achieved.

公开(公告)号：US09590745B2

公开(公告)日：2017-03-07

申请号：US14923445

申请日：2015-10-27

Applicant: MEDIATEK INC.

Inventor： Yen-Lin Huang ,  Hsiang-Hui Chang ,  Hung-Tao Hsieh ,  Gary A. Anwyl ,  Thomas Edward Pare, Jr.

IPC: H04B7/06 ,  H04B17/14 ,  H04B7/04 ,  H04L25/02

CPC classification number: H04B17/14 ,  H04B7/0413 ,  H04B7/0617 ,  H04L25/0202

Abstract: A method operative on a wireless transceiver device for performing beamforming calibration includes: measuring at least one joint signal response of at least one circuit loopback between a transmitter of the wireless transceiver device and a receiver of the wireless transceiver device to determine the measurement result; and calibrating joint signal path mismatch according to the measurement result for s multiple antenna beamforming system operating on the wireless transceiver device.

Abstract translation: 一种在用于执行波束成形校准的无线收发器设备上操作的方法包括：测量无线收发器设备的发射机与无线收发器设备的接收机之间的至少一个电路环回的至少一个联合信号响应，以确定测量结果; 并且根据在无线收发器设备上操作的多天线波束成形系统的测量结果来校准联合信号路径失配。