公开(公告)号：EP3151445A1

公开(公告)日：2017-04-05

申请号：EP16192182.0

申请日：2016-10-04

申请人： MediaTek Inc.

发明人： LIU, Jianhan ,  FENG, Shuling ,  PARE JR., Thomas Edward ,  HSU, Yung-Ping

IPC分类号： H04B7/06 ,  H04L25/02

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.

摘要翻译： 提出了一种发送和接收HE PPDU并执行信道估计增强的方法。 HE PPDU包括传统前同步码，HE-STF，HE-LTF和数据。 波束变化指示指示预先乘法波束成形Q矩阵是否从传统前导码改变为H-SFT，HE-LTF和数据部分。 值1表示Q矩阵发生变化。 值为0表示Q矩阵不变，接收机应该是安全的组合L-LTF和HE-LTF。 波束变化指示可用于显着增强接收机的信道估计。 当没有波束变化时，接收机在HE-STF和HE-LTF期间不改变操作，使得信道估计可以依赖于L-LTF，L-SIG，RL-SIG，HE-SIGA和HE- LTF。

公开(公告)号：EP3139532A1

公开(公告)日：2017-03-08

申请号：EP16187569.5

申请日：2016-09-07

申请人： MediaTek Inc.

发明人： WU, Tianyu ,  HU, Shengquan ,  LIU, Jianhan ,  PARE JR., Thomas Edward

IPC分类号： H04L5/00 ,  H04B7/04

CPC分类号： H04W72/0453 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094

摘要： Methods and apparatus are provided for HE-SIG-B common field formats and indications. In one novel aspect, a fixed format is used for HE-SIG-B common field indicating resource allocations, hereinafter RA. In one embodiment, look-up tables, hereinafter LUT, are configured for the resource allocation and indicated in the HE-SIG-B common field. In one embodiment, one or more RA LUTs are used based on the operation bandwidth. The RA LUTs are placed in an order of channel indexes from lower channel to upper channel signaled in each corresponding RA LUT. In another novel aspect, MU-MIMO is used for operation bandwidth of 160 MHz and a compression indicator is set in the HE-SIG-A field indicating a saving of all RA LUTS in the HE-SIG-B common field. In yet another novel aspect, a one-bit middle-tone indicator is included in the HE-SIG-B common field indicating whether the one or more middle 26 tone is used.

摘要翻译： 提供HE-SIG-B常用字段格式和指示的方法和装置。 在一个新颖的方面，固定格式用于指示资源分配的HE-SIG-B公共字段，以下称为RA。 在一个实施例中，查找表（以下称为LUT）被配置用于资源分配并且在HE-SIG-B公共字段中指示。 在一个实施例中，基于操作带宽使用一个或多个RA LUT。 RA LUT按照每个对应的RA LUT中信号通道的从低通道到高通道的通道索引的顺序放置。 在另一个新颖的方面，MU-MIMO用于160MHz的操作带宽，并且在HE-SIG-A字段中设置压缩指示符，表示在HE-SIG-B公共字段中保存所有RA LUTS。 在另一新颖方面，在HE-SIG-B公共字段中包括一比特中音调指示符，指示是否使用一个或多个中间26音调。

公开(公告)号：EP4373024A1

公开(公告)日：2024-05-22

申请号：EP23210322.6

申请日：2023-11-16

申请人： MediaTek Inc.

发明人： HU, Shengquan ,  LIU, Jianhan ,  PARE, Jr., Thomas Edward

IPC分类号： H04L5/00

CPC分类号： H04L5/003

摘要： Techniques pertaining to narrow bandwidth transmission schemes in next-generation Enhanced Long Range, ELR, wireless local area networks, WLANs, are described. An apparatus, e.g., station, STA, generates a physical-layer protocol data unit, PPDU, comprising a spoofing preamble, an ELR preamble and an ELR data portion (3210). The apparatus transmits the PPDU in an ELR wireless communication such that at least a portion of the ELR preamble is transmitted on at least one narrow-bandwidth subchannel of a wider bandwidth (3220).

公开(公告)号：EP4266594A3

公开(公告)日：2024-05-15

申请号：EP23168762.5

申请日：2023-04-19

申请人： MediaTek Inc.

发明人： LIU, Jianhan ,  HU, Shengquan ,  SEOK, Yongho ,  PARE, Jr., Thomas Edward ,  HSU, YungPing

IPC分类号： H04B7/06

CPC分类号： H04B7/06954 ,  H04B7/06952

摘要： Techniques pertaining to multi-link operation, MLO, assisted 60GHz beamforming training and data transmission in wireless communications are described. An apparatus, e.g. as a 60GHz-capable MLO station, STA, performs MLO assisted 60GHz operations (810) by: -i- performing discovery and association (812); and -ii-performing either or both of beamforming training and data transmission in a 60GHz band (814).

公开(公告)号：EP4351066A1

公开(公告)日：2024-04-10

申请号：EP23199381.7

申请日：2023-09-25

申请人： MediaTek Inc.

发明人： CHEN, You-Wei ,  LIU, Jianhan ,  LU, Kai Ying ,  PARE, Jr. Thomas Edward

IPC分类号： H04L5/00

摘要： Techniques pertaining to efficient and flexible frequency domain (FD) aggregated physical-layer protocol data unit (FD-A-PPDU) with the same and/or mixed WiFi generations transmission are described. An apparatus (e.g., a station (STA)) performs (810) a wireless communication by: (i) transmitting (812) a FD-A-PPDU or (ii) receiving (814) the FD-A-PPDU. The wireless communication is performed in a 160MHz, 240MHz, 320MHz, 480MHz or 640MHz bandwidth with 80MHz being a minimum size of each of multiple PPDUs of the FD-A-PPDU. The FD-A-PPDU may be a 160MHz, 240MHz, 320MHz, 480MHz or640MHz FD-A-PPDU. The FD-A-PPDU may include PPDUs having a same PPDU format or different PPDU formats of different WiFi generations and utilizing a minimum size of 80MHz non-overlapping frequency subblocks as a base building block.

公开(公告)号：EP4340286A3

公开(公告)日：2024-04-10

申请号：EP23198029.3

申请日：2023-09-18

申请人： MediaTek Inc.

发明人： HU, Shengquan ,  LIU, Jianhan ,  PARE, Jr., Thomas Edward

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04W84/12

摘要： Techniques pertaining to performance enhancement of resource unit, RU, duplication with predefined interleaving patterns in wireless communications are described. An apparatus, e.g., station, STA, generates at least one RU (3110). The apparatus then performs a wireless communication with RU duplication in a frequency domain (3120) using either: -a- a same interleaving pattern applied across orthogonal frequency-division multiplexing, OFDM, symbols of each duplicated RU of the at least one RU; or -b- two or more interleaving patterns periodically or alternatively switched over OFDM symbols of two or more duplicated RUs of the at least one RU.

公开(公告)号：EP4344117A1

公开(公告)日：2024-03-27

申请号：EP23199063.1

申请日：2023-09-22

申请人： MediaTek Inc.

发明人： HU, Shengquan ,  LIU, Jianhan ,  PARE, Jr., Thomas Edward

IPC分类号： H04L5/00

摘要： Techniques pertaining to distributed-tone resource unit, RU, designs for wide distribution bandwidth 160MHz 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 (2910). The apparatus then performs a wireless communication in a 160MHz distribution bandwidth with the dRU (2920).

公开(公告)号：EP4344107A1

公开(公告)日：2024-03-27

申请号：EP23198758.7

申请日：2023-09-21

申请人： Mediatek Inc.

发明人： HU, Shengquan ,  LIU, Jianhan ,  PARE, Jr., Thomas Edward

IPC分类号： H04L1/00

摘要： Techniques pertaining to signaling and padding methods for probabilistic shaping quadrature amplitude modulation, QAM, transmission in wireless communications are described. An apparatus, e.g., station, STA, generates a packet using a probabilistic shaping, PS, 4096 quadrature amplitude modulation, 4096QAM, such that a length of the packet is extended (910). The apparatus then transmits the packet in a wireless communication (920).

公开(公告)号：EP4340309A1

公开(公告)日：2024-03-20

申请号：EP23196766.2

申请日：2023-09-12

申请人： MediaTek Inc.

发明人： HU, Shengquan ,  LIU, Jianhan ,  PARE, Jr., Thomas Edward

IPC分类号： H04L27/26

摘要： Various schemes pertaining to short training field, STF, sequence design for wide bandwidths in wireless communications are described. A processor of an apparatus generates an STF of a physical-layer protocol data unit, PPDU, by using a predefined STF base sequence (1010). The processor then performs a wireless communication in a 240MHz, 480MHz or 640MHz bandwidth with the PPDU (1020).

公开(公告)号：EP4319027A1

公开(公告)日：2024-02-07

申请号：EP23189013.8

申请日：2023-08-01

申请人： MediaTek Inc.

发明人： FENG, Shuling ,  LIU, Jianhan ,  PARE, Jr., Thomas Edward

IPC分类号： H04L5/00

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.