公开(公告)号：US20160352552A1

公开(公告)日：2016-12-01

申请号：US15164690

申请日：2016-05-25

Applicant: MEDIATEK INC.

Inventor： Jianhan Liu ,  Tianyu Wu ,  Thomas Edward PARE, JR. ,  YungPing Hsu

IPC: H04L27/26 ,  H04L5/00 ,  H04B1/7176

Abstract: Modulation schemes that use dual sub-carrier to reliably transmit physical layer related signaling information and/or data in high efficiency wireless local area network (HE WLAN) are proposed. The proposed schemes can be implemented with low complexity and provide better performance than existing modulation schemes used in WLAN that are based on IEEE 802.11/a/b/g/n/ac standards. The proposed schemes enhance the reliability of transmissions, especially under narrow band interferences. In accordance with a novel aspect, dual subcarrier modulation (DCM) is introduced in HE WLAN. DCM can introduce frequency diversity into OFDM systems by transmitting the same information on two subcarriers separated in frequency. A DCM indication scheme is used such that both encoding and decoding of DCM is really simple.

Abstract translation: 提出了使用双子载波在高效率无线局域网（HE WLAN）中可靠传输物理层相关信令信息和/或数据的调制方案。 所提出的方案可以以低复杂度实现，并且比基于IEEE 802.11 / a / b / g / n / ac标准的WLAN中使用的现有调制方案提供更好的性能。 所提出的方案增强了传输的可靠性，特别是在窄带干扰下。 根据一个新颖的方面，在HE WLAN中引入了双副载波调制（DCM）。 DCM可以通过在频率上分离的两个子载波上发送相同的信息来将频率分集引入OFDM系统。 使用DCM指示方案，使得DCM的编码和解码都非常简单。

公开(公告)号：US20160014763A1

公开(公告)日：2016-01-14

申请号：US14833072

申请日：2015-08-22

Applicant: MEDIATEK INC.

Inventor： Yuh-Ren Jauh ,  Jianhan Liu ,  Chao-Chun Wang ,  James June-Ming Wang ,  Thomas Edward PARE, JR.

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0007 ,  H04B7/0452 ,  H04L5/0055

Abstract: Methods and apparatus are provided for burst OFDMA support MU-MIMO in the WLAN network. In one novel aspect, pluralities of user channels are configured for a downlink wideband channel, wherein each user channel is associated with a user group selecting from a SU-SISO, or a SU-MIMO or a MU-MIMO. In one embodiment, the SIG1 and SIG2 signaling fields are independent for each user channel. In another embodiment, the SIG1 fields are duplicates for all user channels carrying common information. The SIG2 fields for each user group are different from each other carrying user group specific information. In another novel aspect, an uplink OFDMA frames contains ACK packets from multiple STAs concurrently using an uplink wideband channel. In one embodiment, one ACK packet is sent for a MU-MIMO user group. In another embodiment, the uplink ACK packet assignment is based on indications in the downlink PHY SIG field.

Abstract translation: 为WLAN网络中的突发OFDMA支持MU-MIMO提供了方法和装置。 在一个新颖的方面，为下行链路宽带信道配置多个用户信道，其中每个用户信道与从SU-SISO或SU-MIMO或MU-MIMO选择的用户组相关联。 在一个实施例中，SIG1和SIG2信令字段对于每个用户信道是独立的。 在另一个实施例中，SIG1字段是携带公共信息的所有用户信道的重复。 每个用户组的SIG2字段彼此不同，承载用户组的具体信息。 在另一个新颖的方面，上行链路OFDMA帧包含使用上行链路宽带信道同时来自多个STA的ACK分组。 在一个实施例中，为MU-MIMO用户组发送一个ACK分组。 在另一个实施例中，上行链路ACK分组分配基于下行链路PHY SIG字段中的指示。

公开(公告)号：US20240364445A1

公开(公告)日：2024-10-31

申请号：US18646838

申请日：2024-04-26

Applicant: MediaTek Inc.

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

IPC: H04L1/00

CPC classification number: H04L1/0003 ,  H04L1/0033 ,  H04L1/0068

Abstract: Various schemes pertaining to proportional round robin segment parser designs for the wider bandwidths and corresponding multi-resource unit (MRU) combinations with either equal modulation (EQM) or unequal modulation (UEQM) in wireless communications are described. An apparatus (e.g., an access point (AP) or a non-AP station (STA)) generates a multi-resource unit (MRU) comprising an aggregate of a plurality of resource units (RUS). The apparatus then transmits the MRU with UEQM or EQM in a bandwidth of 480 MHz or greater.

公开(公告)号：US20240107381A1

公开(公告)日：2024-03-28

申请号：US18371657

申请日：2023-09-22

Applicant: MediaTek Inc.

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

IPC: H04W28/20 ,  H04L5/00 ,  H04W28/08

CPC classification number: H04W28/20 ,  H04L5/0041 ,  H04L5/0048 ,  H04W28/0983

Abstract: Various schemes pertaining to distributed-tone resource unit (dRU) operation for wide bandwidths next-generation wireless local area network (WLAN) systems are described. A communication entity generates at least one dRU or both the at least one dRU and at least one regular resource unit (rRU). The communication entity then communicates wirelessly using the at least one dRU or using the at least one dRU and the at least one rRU in a 160 MHz, 240 MHz, 320 MHz, 480 MHz or 640 MHz bandwidth.

公开(公告)号：US20240106615A1

公开(公告)日：2024-03-28

申请号：US18371168

申请日：2023-09-21

Applicant: MediaTek Inc.

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

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0046

Abstract: Techniques pertaining to distributed-tone resource unit (RU) designs for wide distribution bandwidth 160 MHz in wireless communications are described. An apparatus (e.g., station (STA)) generates a distributed-tone resource unit (dRU) of 52 tones or more using a 26-tone dRU as a building block. The apparatus then performs a wireless communication in a 160 MHz distribution bandwidth with the dRU.

公开(公告)号：US20240089157A1

公开(公告)日：2024-03-14

申请号：US18367435

申请日：2023-09-12

Applicant: MediaTek Inc.

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

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2602 ,  H04L1/0057 ,  H04L1/0071 ,  H04W84/12

Abstract: Techniques pertaining to physical-layer (PHY) parameter designs enabling resource unit (RU) duplication and tone repetition for next-generation wireless local area networks (WLANs) are described. An apparatus (e.g., station (STA)) generates an RU or multi-RU (MRU). The apparatus then performs a wireless communication with the RU or MRU. In generating the RU or MRU, the apparatus codes a spatial stream using a binary convolutional coding (BCC) interleaver or a low-density parity-check (LDPC) tone mapper. In performing the wireless communication, the apparatus performs the wireless communication with RU duplication or tone repetition in a frequency domain.

公开(公告)号：US20240049157A1

公开(公告)日：2024-02-08

申请号：US18210549

申请日：2023-06-15

Applicant: MEDIATEK INC.

Inventor： Shuling Feng ,  Jianhan Liu ,  Thomas Edward Pare, JR.

IPC: H04W56/00

CPC classification number: H04W56/0065 ,  H04W84/12

Abstract: 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.

公开(公告)号：US20240048418A1

公开(公告)日：2024-02-08

申请号：US18226828

申请日：2023-07-27

Applicant: MediaTek Inc.

Inventor： Shengquan Hu ,  Jianhan Liu ,  Tung Sheng Yang ,  Thomas Edward Pare, JR.

IPC: H04L27/26

CPC classification number: H04L27/2602

Abstract: Techniques pertaining to transmission methods of resource unit (RU) duplication and tone repetition for Enhanced Long Range (ELR) communications are described. An apparatus (e.g., station (STA)) generates a resource unit (RU) or multi-RU (MRU). The apparatus then performs an ELR communication wirelessly with either or both of: (a) duplication of the RU or MRU; and (b) repetition of tones of the RU or MRU.

公开(公告)号：US20230344480A1

公开(公告)日：2023-10-26

申请号：US18136323

申请日：2023-04-18

Applicant: MediaTek Inc.

Inventor： Jianhan Liu ,  Shengquan Hu ,  Yongho Seok ,  Thomas Edward Pare, JR. ,  Yungping Hsu

IPC: H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0626

Abstract: Techniques pertaining to multi-link operation (MLO) assisted 60 GHz beamforming training and data transmission in wireless communications are described. An apparatus (e.g., as a 60 GHz-capable MLO station (STA)) performs MLO assisted 60 GHz operations by: (i) performing discovery and association; and (ii) performing either or both of beamforming training and data transmission in a 60 GHz band.

公开(公告)号：US20230299931A1

公开(公告)日：2023-09-21

申请号：US18118310

申请日：2023-03-07

Applicant: MediaTek Inc.

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

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04W84/12

Abstract: Techniques pertaining to designs of channelization of the 60 GHz band for next-generation wireless local area networks (WLANs) are described. A first apparatus communicates in a 60 GHz band wirelessly with a second apparatus by communicating with a channelization design of the 60 GHz band having a channel center frequency being equal to (a channel starting frequency+ΔF)+ΔF*channelIndex, with ΔF denoting a half of a channel spacing and with channelIndex denoting a channel index value.