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11. 发明授权

EP3146689B1 CSI FEEDBACK MODES AND INDICATION FOR SUB-CHANNEL FEEDBACK IN OFDMA SYSTEMS 有权
公开(公告)号：EP3146689B1
公开(公告)日：2019-03-06
申请号：EP15808883.1
申请日：2015-06-18
申请人： MediaTek Singapore Pte. Ltd.
发明人： WU, Tianyu , LIU, Jianhan , PARE JR., Thomas Edward
IPC分类号： H04L5/00

12. 发明授权

EP3008843B1 INCREASED NETWORK THROUGHPUT WITH CCA LEVEL ENHANCEMENT 有权
标题翻译：通过CCA级别增强提高网络吞吐量
公开(公告)号：EP3008843B1
公开(公告)日：2017-09-06
申请号：EP14818206.6
申请日：2014-06-24
申请人： MediaTek Singapore Pte. Ltd.
发明人： WANG, James June-Ming , LIU, Jianhan , HSU, Yung-Ping
IPC分类号： H04J3/16 , H04W24/02
CPC分类号： H04W72/1257 , H04W74/0808
摘要： A method of channel contention procedure with CCA level enhancement is proposed. A wireless device initiates an EDCA channel contention procedure to gain access to the wireless medium. The device determines an intended TX channel width and performs primary channel CCA using a set of CCA levels based on the intended TX channel width for determining channel idle or busy condition in the EDCA procedure. Upon gaining access, the device performs secondary channel CCA and thereby determining a final TX channel width. The device transmits radio signals using the final TX channel width and a TX spectral power density, which is adjusted to be corresponding to the intended TX channel width. By raising CCA levels to be based on the intended transmission channel width, the likelihood of wide channel width transmission is increased. As a result, significant network throughput increase can be accomplished in dense deployment scenarios.
摘要翻译：提出了一种具有CCA等级增强的信道竞争过程的方法。无线设备启动EDCA信道争用程序以获得对无线介质的访问。该设备基于用于确定EDCA过程中的信道空闲或繁忙条件的预期TX信道宽度来确定预期的TX信道宽度并使用一组CCA级别来执行主信道CCA。在获得访问权限后，该设备执行辅助信道CCA并由此确定最终的TX信道宽度。该设备使用最终的TX信道宽度和TX频谱功率密度来发射无线电信号，该TX频谱功率密度被调整为对应于预期的TX信道宽度。通过将CCA水平提高到基于预期的传输通道宽度，宽通道宽度传输的可能性增加。因此，在密集部署方案中可以实现显着的网络吞吐量增长。

13. 发明公开

EP4236580A2 METHOD AND APPARATUS FOR ENHANCED PREAMBLE PUNCTURED PPDU IN A WIRELESS NETWORK 审中-实审
公开(公告)号：EP4236580A2
公开(公告)日：2023-08-30
申请号：EP23173400.5
申请日：2020-02-25
申请人： MediaTek Singapore Pte. Ltd.
发明人： SEOK, Yongho , LIU, Jianhan , WANG, Chao-Chun , YEE, James Chih-Shi
IPC分类号： H04W74/08
摘要： Embodiments of the present invention provide a punctured preamble enabling wireless devices to efficiently use a channel (e.g., an 80 or 160 MHz channel) where a primary service is operating. A Wideband Channel Access Mechanism for 20 MHz/80 MHz operating STAs is provided so that a 20 MHz/80 MHz operating STA can dynamically move to a secondary channel to improve wireless performance of the STA. An AP coordinates the operating channel switch of the 20 MHz/80 MHz operating STA. An EHT cooperative multi-band operation can be applied to the preamble punctured PPDU for simultaneous multi-band operation.

14. 发明公开

EP4040708A1 SIGNALING FOR UL TB PPDU WITH DISTRIBUTED-TONE RESOURCE UNITS IN 6GHZ LOW-POWER INDOOR SYSTEMS 审中-实审
公开(公告)号：EP4040708A1
公开(公告)日：2022-08-10
申请号：EP22154165.9
申请日：2022-01-31
申请人： MediaTek Singapore Pte. Ltd.
发明人： HU, Shengquan , LIU, Jianhan , PARE, Jr., Thomas Edward
IPC分类号： H04L5/00 , H04L27/26 , H04W72/00
摘要： Techniques pertaining to signaling for uplink, UL, transport block, TB, physical-layer protocol data unit, PPDU, with distributed-tone resource unit, dRUs, in 6GHz low-power indoor, LPI, systems are described. A station, STA, receives a trigger frame (2710) and, in response to the trigger frame signaling an indication of a RU type and that a dRU operation is enabled, the STA generates and transmits a PPDU with a dRU (2720).

15. 发明公开

EP4037239A1 TONE ALIGNMENT FOR DISTRIBUTED-TONE RESOURCE UNITS IN 6GHZ LOW-POWER INDOOR SYSTEMS 审中-实审
公开(公告)号：EP4037239A1
公开(公告)日：2022-08-03
申请号：EP22153682.4
申请日：2022-01-27
申请人： MediaTek Singapore Pte. Ltd.
发明人： HU, Shengquan , LIU, Jianhan , PARE, Jr., Thomas Edward
IPC分类号： H04L5/00
摘要： Various schemes pertaining to tone alignment for distributed-tone resource units, dRUs, in 6GHz low-power indoor, LPI, systems are described. A communication entity distributes subcarriers of a resource unit, RU, over a bandwidth to generate a dRU with tone alignment (1710). The communication entity then communicates wirelessly using the dRU in a 6GHz LPI system (1720).

16. 发明公开

EP3945693A1 DESIGN SIMPLIFICATION FOR DISTRIBUTED-TONE RESOURCE UNITS IN 6HGZ LOW-POWER INDOOR SYSTEMS 审中-实审
公开(公告)号：EP3945693A1
公开(公告)日：2022-02-02
申请号：EP21188219.6
申请日：2021-07-28
申请人： MediaTek Singapore Pte. Ltd.
发明人： HU, Shengquan , LIU, Jianhan , PARE, Jr., Thomas Edward
IPC分类号： H04L5/00 , H04L27/00 , H04L27/26 , H04W72/04 , H04W84/12
摘要： Various schemes pertaining to design simplification for distributed-tone resource units, RUs, in 6GHz low-power indoor, LPI, systems are described. A communication entity performs tone distribution with a logical RU size over a bandwidth to generate a distributed-tone RU (1510). The communication entity then communicates wirelessly using the distributed-tone RU in a 6GHz low-power indoor, LPI, system (1520).

17. 发明公开

EP3800814A1 JOINT ENCODING SCHEMES WITH INTERLEAVER AND TONE MAPPER FOR MULTI-RU OPERATION 有权
公开(公告)号：EP3800814A1
公开(公告)日：2021-04-07
申请号：EP20197994.5
申请日：2020-09-24
申请人： MediaTek Singapore Pte. Ltd.
发明人： HU, Shengquan , LIU, Jianhan , FENG, Shuling , PARE, Jr., Thomas Edward
IPC分类号： H04L1/00 , H04L5/00
摘要： A method of joint encoding schemes with interleaver and tone mapper for multiple-resource unit (multi-RU) operation involves performing joint encoding of a plurality of information bits to generate a plurality of encoded bit sequences (1410). The method also involves processing the plurality of encoded bit sequences by interleaving and tone mapping the encoded bit sequences with respect to a plurality of resource units, (RUs, on either or both of an aggregate-RU basis and an individual-RU basis to generate a plurality of processed bit sequences (1420). The method further involves transmitting the plurality of processed bit sequences over the plurality of RUs (1430).

18. 发明公开

EP3764727A1 ENHANCED HIGH-THROUGHPUT SYNCHRONOUS AND CONSTRAINED MULTI-LINK TRANSMISSION IN WLAN 有权
公开(公告)号：EP3764727A1
公开(公告)日：2021-01-13
申请号：EP20184683.9
申请日：2020-07-08
申请人： MediaTek Singapore Pte. Ltd.
发明人： SEOK, Yongho , LIU, Jianhan , YEE, James Chih-Shi , PARE, Jr. Thomas Edward
IPC分类号： H04W74/08 , H04W84/12
摘要： A first apparatus communicates with a second apparatus via a first link in a first frequency band and via a second link in a second frequency band different than the first frequency band by performing operations (1710). For example, the first apparatus performs an independent enhanced distributed channel access, EDCA, on each of the first link and the second link (1712). Then, the first apparatus obtains a transmit opportunity, TXOP, (1714). Next, the first apparatus synchronizes a starting time and/or an ending time of a transmission and a reception on the first link and the second link to avoid causing an in-device coexistence, IDC, interference due to the transmission and the reception occurring simultaneously (1716). Alternatively, the first apparatus refrains from transmitting and receiving on the first link and the second link simultaneously to avoid causing the IDC interference.

19. 发明公开

EP3697009A3 METHOD AND APPARATUS FOR HYBRID ARQ ACKNOWLEDGEMENT IN A WIRELESS NETWORK 审中-实审
公开(公告)号：EP3697009A3
公开(公告)日：2020-11-04
申请号：EP20156356.6
申请日：2020-02-10
申请人： MediaTek Singapore Pte. Ltd.
发明人： SEOK, Yongho , LIU, Jianhan , YEE, James Chih-Shi , PARE, JR., Thomas Edward
IPC分类号： H04L1/18
摘要： Embodiments of the present invention provide a method and apparatus for hybrid ARQ acknowledgement and retransmission requests for decoding failed MPDUs of an A-MPDU received by an STA. The source address and receiver address of a failed MPDU can be verified according to a MAC header CRC that can be included in an A-Control frame, for example (1705). For verifying the source address and the receiver address in MAC header, according to some embodiments, the MAC header CRC is jointly calculated over the first two octets of the MPDU delimiter of an A-MPDU subframe.
Moreover, a Hybrid ARQ frame is defined to include Block Ack Bitmap subfield representing the received status of a plurality of MPDUs according to starting sequence control number, for example.

20. 发明公开

EP3716495A1 SECTORIZED BEAM OPERATION FOR WIRELESS NETWORKS 有权
公开(公告)号：EP3716495A1
公开(公告)日：2020-09-30
申请号：EP20176018.8
申请日：2013-07-10
申请人： MediaTek Singapore Pte. Ltd.
发明人： WANG, James , LIU, Jianhan , HSU, Yung-Ping , YEE, Chi-Shi , WANG, Chao-Chun , PONNAMPALAM, Vishakan
IPC分类号： H04B7/04 , H04W16/28 , H04B7/06
摘要： A communication method for a wireless network is disclosed. The wireless network comprises a plurality of wireless devices. The method comprises transmitting one or multiple packets with an omni-beam by a first wireless device to a second wireless device in a packet exchange during an omni-beam duration to indicate a sectorized-beam duration, receiving the packet(s) by a third wireless device, transmitting/receiving data by the first wireless device using a sectorized beam in a packet exchange with the second wireless device during the sectorized beam duration, and detecting by the third wireless device the sectorized beam packet(s) from the first wireless device and packet(s) from the second wireless device, if no sectorized beam packet(s)from the first wireless device and packet(s) from the second wireless device is detected, the third wireless device starting to communicating with a fourth wireless device.

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