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公开(公告)号:US20240172273A1
公开(公告)日:2024-05-23
申请号:US18509360
申请日:2023-11-15
Applicant: MediaTek Inc.
Inventor: Cheng-Yi Chang , Kun-Sheng Huang , Yi-Hsuan Chung , Chung-Kai Hsu , Chia-Hsiang Chang , Kai Ying Lu
IPC: H04W74/00 , H04W74/0816
CPC classification number: H04W74/006 , H04W74/0816
Abstract: Examples pertaining to preamble puncturing negotiation in wireless communications are described. A station (STA) may receive a control frame, and, in response, apply the MRU pattern for one or more transmissions or receptions in a transmission opportunity (TXOP). In the control frame, either a plurality of first reserved bits in a SERVICE field or a plurality of bits in a User Info field are set to indicate a multiple resource unit (MRU) pattern regarding preamble puncturing.
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公开(公告)号:US20240015828A1
公开(公告)日:2024-01-11
申请号:US18216589
申请日:2023-06-29
Applicant: MEDIATEK INC.
Inventor: Li-Tien Chang , Cheng-Yi Chang , Chun-Ting Lin
IPC: H04W76/15
Abstract: The present invention provides a wireless communication method of a multi-link device. The wireless communication method includes the steps of: establishing multiple links with an access point, wherein the multiple links have a current link mode; determining performance of a current link mode and at least one candidate link mode, wherein frequency band(s) corresponding to the current link mode and the at least one candidate link mode are not the same; and if the performance of one of the at least one candidate link mode is greater than the performance of the current link mode, switching the link mode of the multiple links, without reconnecting to the access point, so that the one of the at least one candidate link mode serves as the current link mode to communicate with the access point.
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3.
公开(公告)号:US20230261782A1
公开(公告)日:2023-08-17
申请号:US18136342
申请日:2023-04-19
Applicant: MEDIATEK INC.
Inventor: Chien-Fang Hsu , Cheng-Yi Chang , Hung-Tao Hsieh , Yongho Seok
CPC classification number: H04L1/0017 , H04B7/0632 , H04W80/02
Abstract: A multi-link device (MLD) includes a transmit (TX) circuit, a receive (RX) circuit, and a control circuit. The control circuit controls the RX circuit to receive a first frame under an operation mode parameter with a first setting, control the TX circuit to transmit a second frame responsive to the first frame under the operation mode parameter with the first setting, and after the second frame is transmitted, controls the RX circuit to receive at least one physical layer protocol data unit (PPDU) under the operation mode parameter with a second setting, wherein the second setting is different from the first setting. None of the first frame and the second frame carries indication of operation mode parameter change that specifies the use of the second setting, and the use of the second setting is indicated by transmission of the second frame.
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公开(公告)号:US20230120024A1
公开(公告)日:2023-04-20
申请号:US17963203
申请日:2022-10-11
Applicant: MEDIATEK INC.
Inventor: Cheng-Yi Chang , Meng-Hsiang Lai , Xingbo Zhao
Abstract: The present invention provides a wireless communication method performed by an AP, wherein the AP is an NSTR AP MLD, and the wireless communication method includes the steps of: establishing a primary link and an non-primary link with a first MLD; during a first period, transmitting data to the first MLD or receiving data from the first MLD via the primary link and the non-primary link; and during a second period following the first period, in response to a channel used by the non-primary link being busy, performing a dynamic radio chain switching mechanism to adjust an antenna configuration of the primary link, and using the primary link to communicate with the first MLD.
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公开(公告)号:US20230123499A1
公开(公告)日:2023-04-20
申请号:US17964045
申请日:2022-10-12
Applicant: MEDIATEK INC.
Inventor: Cheng-Yi Chang
IPC: H04W74/08 , H04W76/16 , H04W24/10 , H04B7/0408
Abstract: A control method employed by a wireless fidelity (Wi-Fi) multi-link device (MLD) includes: in response to gaining access of a first link at a first time point through channel contention, enabling a multi-link coherent operation mode on the first link for performing frame exchange process on the first link by using N spatial streams, wherein N is a positive integer not smaller than 2; and in response to gaining access of a second link at a second time point through channel contention, blocking the multi-link coherent operation mode from being enabled on the second link, wherein performance of the second link is lower than performance of the first link.
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公开(公告)号:US20210075569A1
公开(公告)日:2021-03-11
申请号:US17013683
申请日:2020-09-07
Applicant: MEDIATEK INC.
Inventor: Yu-Hsien Chang , Ying-You Lin , Kuan-I Li , Ping-Chen Lin , Po-Hsun Wei , Cheng-Yi Chang
Abstract: A multi-user downlink orthogonal frequency-division multiple access (OFDMA) configuration method includes: assigning contiguous resource units (RUs) included in a channel to a plurality of stations, respectively; and assigning, by an access point (AP), one modulation and coding scheme (MCS) to each of the plurality of stations. Data rates of modulation and coding schemes that are assigned to first stations and associated with contiguous first RUs assigned to the first stations are monotonic, where the first stations are included in the plurality of stations.
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公开(公告)号:US20240306204A1
公开(公告)日:2024-09-12
申请号:US18599165
申请日:2024-03-07
Applicant: MEDIATEK INC
Inventor: Cheng-Yi Chang
IPC: H04W74/0816 , H04W8/22 , H04W74/08
CPC classification number: H04W74/0816 , H04W8/22 , H04W74/0866
Abstract: A method for performing dynamic super-band operation (DSO) in a wireless communication system and associated apparatus are provided, where a plurality of non-access-point stations (non-AP STAs) are wirelessly linking to a first access point (AP) having a maximum clear channel assessment (CCA) bandwidth capability corresponding to a maximum CCA bandwidth, and the non-AP STAs are able to link to the first AP via a plurality of channels within the maximum CCA bandwidth, respectively. The method may include: providing a maximum transceiver bandwidth capability for at least one of the non-AP STAs smaller than the maximum CCA bandwidth capability of the first AP; and dynamically determining a first channel among the plurality of channels for data transmission of the first AP and the at least one of the non-AP STAs, based on channel utilization status of the plurality of channels within the maximum CCA bandwidth.
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公开(公告)号:US11737141B2
公开(公告)日:2023-08-22
申请号:US17353760
申请日:2021-06-21
Applicant: MEDIATEK INC.
Inventor: Cheng-Yi Chang , Chao-Wen Chou , Kun-Sheng Huang , Chin-Chi Chang
IPC: H04W74/08
CPC classification number: H04W74/0816
Abstract: One wireless communication device includes a transmitter circuit and a control circuit, wherein the control circuit sets a request to send (RTS) frame, and controls the transmitter circuit to transmit the RTS frame via at least one channel excluding a preamble punctured channel. Another wireless communication device includes a transmitter circuit and a control circuit, wherein the control circuit sets an RTS frame, and controls the transmitter circuit to transmit the RTS frame via a plurality of channels including the preamble punctured channel.
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9.
公开(公告)号:US11658768B2
公开(公告)日:2023-05-23
申请号:US17367437
申请日:2021-07-05
Applicant: MEDIATEK INC.
Inventor: Chien-Fang Hsu , Cheng-Yi Chang , Hung-Tao Hsieh , Yongho Seok
CPC classification number: H04L1/0017 , H04B7/0632 , H04W80/02 , H04W84/12
Abstract: A multi-link device (MLD) includes a transmit (TX) circuit, a receive (RX) circuit, and a control circuit. The control circuit controls the RX circuit to receive a first frame under an operation mode parameter with a first setting, control the TX circuit to transmit a second frame responsive to the first frame under the operation mode parameter with the first setting, and after the second frame is transmitted, controls the RX circuit to receive at least one physical layer protocol data unit (PPDU) under the operation mode parameter with a second setting, wherein the second setting is different from the first setting.
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公开(公告)号:US20230155784A1
公开(公告)日:2023-05-18
申请号:US17985842
申请日:2022-11-12
Applicant: MediaTek Inc.
Inventor: Cheng-Yi Chang
CPC classification number: H04L5/0053 , H04W76/14 , H04W76/15
Abstract: Techniques pertaining to performance enhancement between non-access point (non-AP) multi-link devices (MLDs) by enhanced multi-link single radio (EMLSR) in wireless communications are described. A first non-AP MLD exchanges EMLSR capability information with a second non-AP MLD in a handshake procedure on one of a plurality of links. The first non-AP MLD then establishes an EMLSR operation with the second non-AP MLD on one or more links of the plurality of links. Each of the first non-AP MLD and the second non-AP MLD listens on at least one of the plurality of links.
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