公开(公告)号：US20190174351A1

公开(公告)日：2019-06-06

申请号：US16205232

申请日：2018-11-30

Applicant: MEDIATEK INC.

Inventor： Wei-Ping Chuang ,  Hsuan-Yu Liu ,  Hung-Tao Hsieh ,  Wen-Hsien Chiu ,  Ching-Chia Cheng ,  Hsin-Yi Lee

IPC: H04W28/06

Abstract: A data unit processing method performed by a first communication device, comprising: configuring a data unit by the first communication device, the data unit comprising: a specific format preamble following a first packet format; and a symbol part, comprising at least one symbol and following a Wi-Fi long range packet format. The specific format preamble can be decoded according to a first communication standard and the symbol can be decoded according to a Wi-Fi long range mode. The symbol part can be identified according to the specific format preamble. A method can decode the above-mentioned data unit and a communication device can perform the methods are also disclosed.

公开(公告)号：US11265049B2

公开(公告)日：2022-03-01

申请号：US16583180

申请日：2019-09-25

Applicant: MEDIATEK INC.

Inventor： Hsuan-Yu Liu ,  Hung-Tao Hsieh ,  Tung-Sheng Yang ,  Pu-Hsuan Lin ,  Wen-Hsien Chiu

IPC: H04B7/0456 ,  H04L5/00 ,  H04B7/0452 ,  H04W84/12

Abstract: A wireless communications method includes: obtaining a plurality of stream inputs, wherein the stream inputs include a first stream input complying with a first packet format and a second stream input complying with a second packet format, and the second packet format is different from the first packet format; applying pre-coding to the stream inputs to generate a plurality of pre-coded stream outputs, respectively; and performing wireless transmission upon the pre-coded stream outputs, wherein downlink Multi-User Multiple-Input Multiple-Output (MU-MIMO) transmission is involved in the wireless transmission of the pre-coded stream outputs.

公开(公告)号：US11601156B2

公开(公告)日：2023-03-07

申请号：US17353351

申请日：2021-06-21

Applicant: MediaTek Inc.

Inventor： Yu-Hsien Chang ,  Po-Chun Huang ,  Pi-An Wu ,  Wen-Hsien Chiu ,  Tzu-Wen Sung

IPC: H04B1/403 ,  H03L7/089 ,  H03L7/099 ,  H04L7/033

Abstract: Disclosed herein are devices and methods to reduce unwanted CIM3 emission in a wireless communication device, such that the transmit (TX) power level applied in a RU can be increased without exceeding a regulatory emission requirement. In some aspects, unwanted emission may be reduced by shifting or changing local oscillator (LO) frequencies during TX operation. Some embodiments are directed to a fast-locking PLL with adjustable bandwidth that can be controlled to increase the PLL bandwidth during the RX to TX transition to provide a fast locking to a new LO frequency. Some aspects are directed to configuring an LO frequency shift amount for different RUs when multiple RUs are allocated within a frequency band.

公开(公告)号：US20230397235A1

公开(公告)日：2023-12-07

申请号：US18197087

申请日：2023-05-14

Applicant: MediaTek Inc.

Inventor： Yen-Wen Yang ,  Ting-Che Tseng ,  Tzu-Hsuan Liu ,  Wen-Hsien Chiu

IPC: H04W72/53 ,  H04B17/10

CPC classification number: H04W72/53 ,  H04B17/102

Abstract: Techniques pertaining to dynamic band selection in multi-link operation (MLO) with time averaged specific absorption rate (TA-SAR) information in wireless communications are described. An apparatus determines a resource allocation regarding one or more multi-link operation (MLO) bands. The apparatus then allocates at least one of a transmit (TX) power, a TX duty cycle and a modulation and coding scheme (MCS) rate in wirelessly transmitting in the one or more MLO bands to result in a TA-SAR that is no greater than a predefined limit.

公开(公告)号：US20220014227A1

公开(公告)日：2022-01-13

申请号：US17353351

申请日：2021-06-21

Applicant: MediaTek Inc.

Inventor： Yu-Hsien Chang ,  Po-Chun Huang ,  Pi-An Wu ,  Wen-Hsien Chiu ,  Tzu-Wen Sung

IPC: H04B1/403 ,  H04L7/033 ,  H03L7/089 ,  H03L7/099

Abstract: Disclosed herein are devices and methods to reduce unwanted CIMS emission in a wireless communication device, such that the transmit (TX) power level applied in a RU can be increased without exceeding a regulatory emission requirement. In some aspects, unwanted emission may be reduced by shifting or changing local oscillator (LO) frequencies during TX operation. Some embodiments are directed to a fast-locking PLL with adjustable bandwidth that can be controlled to increase the PLL bandwidth during the RX to TX transition to provide a fast locking to a new LO frequency. Some aspects are directed to configuring an LO frequency shift amount for different RUs when multiple RUs are allocated within a frequency band.

公开(公告)号：US10785682B2

公开(公告)日：2020-09-22

申请号：US16205232

申请日：2018-11-30

Applicant: MEDIATEK INC.

Inventor： Wei-Ping Chuang ,  Hsuan-Yu Liu ,  Hung-Tao Hsieh ,  Wen-Hsien Chiu ,  Ching-Chia Cheng ,  Hsin-Yi Lee

IPC: H04W4/00 ,  H04W28/06 ,  H04L27/26 ,  H04W16/14 ,  H04W84/12

Abstract: A data unit processing method performed by a first communication device, comprising: configuring a data unit by the first communication device, the data unit comprising: a specific format preamble following a first packet format; and a symbol part, comprising at least one symbol and following a Wi-Fi long range packet format. The specific format preamble can be decoded according to a first communication standard and the symbol can be decoded according to a Wi-Fi long range mode. The symbol part can be identified according to the specific format preamble. A method can decode the above-mentioned data unit and a communication device can perform the methods are also disclosed.