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1. 发明公开

US20240244468A1 WLAN Sensing Measurement Report Regarding Receiver SNR 审中-公开
公开(公告)号：US20240244468A1
公开(公告)日：2024-07-18
申请号：US18409854
申请日：2024-01-11
申请人： MediaTek Inc.
发明人： Shuling Feng , Tsung-Han Tsai , Jianhan Liu , Thomas Edward Pare, Jr.
IPC分类号： H04W24/10 , H04B17/309
CPC分类号： H04W24/10 , H04B17/346
摘要： Techniques pertaining to wireless local area network (WLAN) sensing measurement report regarding receive (Rx) signal-to-noise ratio (SNR) in wireless communications are described. A sensing receiver is configured to perform a sensing measurement and generate a sensing measurement report. The sensing measurement report includes an Rx_SNR subfield indicating a Rx signal quality used in a channel state information (CSI) estimation.

2. 发明公开

US20240155402A1 WIRELESS SENSING METHOD FOR REQUESTING PHASE REPORT FROM SENSING RESPONDER AND SENDING REQUESTED PHASE REPORT TO SENSING INITIATOR AND RELATED WIRELESS COMMUNICATION DEVICE 审中-公开
公开(公告)号：US20240155402A1
公开(公告)日：2024-05-09
申请号：US18501047
申请日：2023-11-03
申请人： MEDIATEK INC.
发明人： Tsung-Han Tsai , Hsuan-Yu Liu , Shuling Feng
IPC分类号： H04W24/10 , H04L5/00 , H04W48/16
CPC分类号： H04W24/10 , H04L5/0048 , H04W48/16
摘要： One wireless sensing method includes: generating a measurement request frame, wherein the measurement request frame is configured to carry indication information for phase report from a sensing responder, and sending the measurement request frame to the sensing responder. Another wireless sensing method includes: generating a measurement report frame, wherein the measurement report frame is configured to carry phase information, and sending the measurement report frame to a sensing initiator.

3. 发明公开

US20240049157A1 WIRELESS RANGING WITH BW320 BASED ON EHT FORMAT 审中-公开
公开(公告)号：US20240049157A1
公开(公告)日：2024-02-08
申请号：US18210549
申请日：2023-06-15
申请人： MEDIATEK INC.
发明人： Shuling Feng , Jianhan Liu , Thomas Edward Pare, JR.
IPC分类号： H04W56/00
CPC分类号： H04W56/0065 , H04W84/12
摘要： Embodiments of the present invention are drawn to systems, apparatus and methods that perform wireless ranging procedures using EHT frames supporting large bandwidth transmission. Moreover, ranging specifications are expanded for the EHT frame format in order to support BW320 ranging with improved performance and accuracy. Embodiments of the present invention support high-bandwidth BW320 and BW240 wireless ranging using a EHT frame format and support 802.11az ranging using a high efficiency (HE) for 802.11be devices. Long training field (LTF) repetition features and security features are also described for EHT-LTFs, and signaling of preamble puncturing patterns are defined for 320 MHz physical layer protocol data units (PPDUs) carried in the U-SIG field and in Trigger Frames to improve spectrum efficiency and reduce interference, according to embodiments.

4. 发明申请

US20170099089A1 Beam-Change Indication for Channel Estimation Enahncement 审中-公开
公开(公告)号：US20170099089A1
公开(公告)日：2017-04-06
申请号：US15283168
申请日：2016-09-30
申请人： MEDIATEK INC.
发明人： Jianhan Liu , Shuling Feng , Thomas Edward Pare, JR. , YungPing Hsu
IPC分类号： H04B7/02 , H04L27/26 , H04L25/02
CPC分类号： H04B7/028 , H04B7/0617 , H04L25/0202 , H04L25/0204 , H04L25/022 , H04L25/0228 , H04L25/0242 , H04L27/2601 , H04W84/12
摘要： A method of transmitting and receiving a HE PPDU and perform channel estimation enhancement is proposed. The HE PPDU comprises legacy preamble, HE-STF, HE-LTF, and data. A beam-change indication indicates if the pre-multiplied beamforming Q-matrix is changed from legacy preamble to H-SFT, HE-LTF, and data portion. A value of 1 indicates that Q matrix is changed. A value of 0 indicates that Q matrix is unchanged and receiver should be safe to combine L-LTF and HE-LTF. The beam-change indication can be used to significantly enhance channel estimation at receiver. When there is no beam-change, receiver does not change operation during HE-STF and HE-LTF such that the channel estimations can rely on the combination of L-LTFs, L-SIG, RL-SIG, HE-SIGAs and HE-LTF.

5. 发明申请

US20160006632A1 COMMUNICATION UNIT AND METHOD FOR DETERMINING AND/OR COMPENSATING FOR FREQUENCY DEPENDENT QUADRATURE MISMATCH 有权
标题翻译：通信单元和用于确定和/或补偿频率依赖正交错误的通信单元和方法
公开(公告)号：US20160006632A1
公开(公告)日：2016-01-07
申请号：US14324258
申请日：2014-07-07
申请人： Mediatek Inc.
发明人： Kuo-Hao Chen , Chun-Hao Liao , KIRAN ULN , Shuling Feng
IPC分类号： H04L12/26
CPC分类号： H04L27/2089 , H04L5/0023 , H04L27/2646 , H04L27/364
摘要： A communication unit includes: a quadrature transmitter having analog transmit filter(s) for filtering a first quadrature test signal. An analog feedback loopback path selectively first routes the filtered quadrature first test signal to a quadrature receiver. The quadrature receiver has: at least one analog receive filter for further filtering the filtered quadrature first test signal; and a quadrature receive baseband circuit arranged to receive and decode the further filtered quadrature first test signal. The quadrature transmitter is arranged to receive a second quadrature test signal and the analog feedback loopback path selectively routes a filtered quadrature second test signal to the quadrature receiver via a second route such that the quadrature receive baseband circuit is arranged to determine a frequency-dependent quadrature imbalance of at least one component in the transmitter/receiver based on the decoded further filtered first quadrature test signal and the decoded further filtered second quadrature test signal.
摘要翻译：通信单元包括：具有用于对第一正交测试信号进行滤波的模拟发射滤波器的正交发射机。模拟反馈环回路径选择性地首先将滤波的正交第一测试信号路由到正交接收机。正交接收机具有：至少一个模拟接收滤波器，用于进一步滤波滤波的正交第一测试信号; 以及正交接收基带电路，被布置为接收和解码进一步滤波的正交第一测试信号。正交发射器被布置成接收第二正交测试信号，并且模拟反馈环回路径经由第二路径选择性地将滤波的正交第二测试信号路由到正交接收机，使得正交接收基带电路被布置成确定频率相关的正交基于解码的进一步滤波的第一正交测试信号和解码的进一步滤波的第二正交测试信号，发射机/接收机中的至少一个分量的不平衡。

6. 发明公开

US20240298305A1 METHOD AND APPARATUS FOR IMPROVING STANDARD-POWER FREQUENCY BAND UTILIZATION IN WI-FI COMMUNICATIONS 审中-公开
公开(公告)号：US20240298305A1
公开(公告)日：2024-09-05
申请号：US18592546
申请日：2024-03-01
申请人： MEDIATEK INC.
发明人： You-Wei Chen , Jianhan Liu , Shuling Feng , Yongho Seok , Yu-Hsien Chang , Thomas Edward Pare Jr.
IPC分类号： H04W72/0453 , H04L5/00 , H04W84/12
CPC分类号： H04W72/0453 , H04L5/0007 , H04W84/12
摘要： A Wi-Fi communication method includes: performing resource allocation for multi-user transmission orthogonal frequency division multiple access (OFDMA) according to a regulated frequency band boundary and a resource unit (RU) type, and sending information indicative of the resource allocation, where the RU type includes at least one of regular RU (rRU) and distributed-tone RU (dRU), the resource allocation indicates RUs or multiple RUs (MRUs) allocated in a channel, the channel is across the regulated frequency band boundary, and an RU or MRU allocated per user in the channel is not across the regulated frequency band boundary when using rRU.

7. 发明公开

US20240172278A1 LINK PROTECTION USING RTS/CTS IN ENHANCED LONG RANGE (ELR) COMMUNICATION 审中-公开
公开(公告)号：US20240172278A1
公开(公告)日：2024-05-23
申请号：US18509559
申请日：2023-11-15
申请人： MEDIATEK INC.
发明人： You-Wei Chen , Jianhan Liu , Kai ying Lu , Shuling Feng , Tsung-Hsuan Wu , Thomas Edward Pare, JR.
IPC分类号： H04W74/08
CPC分类号： H04W74/0808
摘要： In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a station (STA). In certain configurations, the STA transmits a request-to-send (RTS) frame in an enhanced long range (ELR) format for obtaining a transmission opportunity (TXOP). The STA receives a first clear-to-send (CTS) frame in the ELR format or a non-ELR format responding to the RTS frame. In response to receiving the first CTS frame, the STA transmits data in the ELR format in the TXOP. In certain configurations, the STA further receives an acknowledgement in the same format as the first CTS frame for responding to the data being transmitted. In certain configurations, prior to transmitting the RTS frame, the STA transmits a CTS-to-Self frame in the non-ELR format.

8. 发明公开

US20240151845A1 SYSTEM AND METHOD FOR IMPROVED WLAN SENSING MEASUREMENT REPORT 审中-公开
公开(公告)号：US20240151845A1
公开(公告)日：2024-05-09
申请号：US18226616
申请日：2023-07-26
申请人： MEDIATEK INC.
发明人： Shuling Feng , Jianhan Liu , Thomas Edward Pare, JR. , Tsung-Han Tsai
IPC分类号： G01S13/76 , H04L25/02 , H04W24/10
CPC分类号： G01S13/765 , H04L25/022 , H04W24/10 , H04W84/12
摘要： Embodiments of the present invention provide methods and devices for performing wireless sensing operations that can accommodate different Rx frequency responses with minimum PHY changes to increase the performance and reliability of wireless sensing in wireless local area network (WLAN) networks. Rx frequency response information can be obtained as channel state information (CSI) in a loopback test and can further be normalized with the total gain in the receiver chain leading to CSI estimation. Moreover, different Rx frequency responses can be categorized into limited groups with underlying circuit conditions based on their frequency response variations. The different Rx frequency responses can be indicated in subfields of a CSI report transmitted to the sensing initiator for performing sensing operations with the sensing responder.

9. 发明公开

US20230422070A1 Further Indication For WLAN Sensing Measurement Report 审中-公开
公开(公告)号：US20230422070A1
公开(公告)日：2023-12-28
申请号：US18211749
申请日：2023-06-20
申请人： MediaTek Inc.
发明人： Shuling Feng , Jianhan Liu , Thomas Edward Pare, JR. , Tsung-Han Tsai
IPC分类号： H04W24/10
CPC分类号： H04W24/10 , H04W84/12
摘要： Techniques pertaining to further indication for WLAN sensing measurement report in wireless communications are described. A sensing receiver is configured to perform a sensing measurement and generate a sensing measurement report indicating channel state information (CSI) according to the sensing measurement. The sensing measurement report further indicates one or more categories of a frequency response of the sensing receiver without indicating any gain setting of the sensing receiver. The sensing receiver is also configured to transmit, as a sensing responder, the sensing measurement report to a sensing initiator.

10. 发明授权

US09231839B1 Communication unit and method for determining and/or compensating for frequency dependent quadrature mismatch 有权
标题翻译：用于确定和/或补偿频率相关的正交失配的通信单元和方法
公开(公告)号：US09231839B1
公开(公告)日：2016-01-05
申请号：US14324258
申请日：2014-07-07
申请人： MEDIATEK INC.
发明人： Kuo-Hao Chen , Chun-Hao Liao , Kiran Uln , Shuling Feng
IPC分类号： H04L12/26 , H04L27/00
CPC分类号： H04L27/2089 , H04L5/0023 , H04L27/2646 , H04L27/364
摘要： A communication unit includes: a quadrature transmitter having analog transmit filter(s) for filtering a first quadrature test signal. An analog feedback loopback path selectively first routes the filtered quadrature first test signal to a quadrature receiver. The quadrature receiver has: at least one analog receive filter for further filtering the filtered quadrature first test signal; and a quadrature receive baseband circuit arranged to receive and decode the further filtered quadrature first test signal. The quadrature transmitter is arranged to receive a second quadrature test signal and the analog feedback loopback path selectively routes a filtered quadrature second test signal to the quadrature receiver via a second route such that the quadrature receive baseband circuit is arranged to determine a frequency-dependent quadrature imbalance of at least one component in the transmitter/receiver based on the decoded further filtered first quadrature test signal and the decoded further filtered second quadrature test signal.
摘要翻译：通信单元包括：具有用于对第一正交测试信号进行滤波的模拟发射滤波器的正交发射机。模拟反馈环回路径选择性地首先将滤波的正交第一测试信号路由到正交接收机。正交接收机具有：至少一个模拟接收滤波器，用于进一步滤波滤波的正交第一测试信号; 以及正交接收基带电路，被布置为接收和解码进一步滤波的正交第一测试信号。正交发射器被布置成接收第二正交测试信号，并且模拟反馈环回路径经由第二路径选择性地将经滤波的正交第二测试信号路由到正交接收机，使得正交接收基带电路被布置成确定频率相关的正交基于解码的进一步滤波的第一正交测试信号和解码的进一步滤波的第二正交测试信号，发射机/接收机中的至少一个分量的不平衡。

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