Mediatek Singapore Pte. Ltd.

Mediatek Corporation

Sibeam, Inc.

Liu, Jianhan

Wu, Tianyu

Jianhan Liu

Shengquan Hu

Thomas Edward Pare

Yongho Seok

Thomas Edward Pare, Jr

James Chih-Shi Yee

James June-Ming Wang

Chao-Chun Wang

Tianyu Wu

YungPing Hsu

Kai Ying Lu

Chih-Shi Yee

Gary Allen Anwyl

Gabor Bajko

Vishakan Ponnampalam

Huanchun Ye

Shuling Feng

Rongsheng Huang

Yungping Hsu

Po-Yuen Cheng

Hung-Tao Hsieh

Chung-Ta Ku

Yung-Ping Hsu

Kaiying Lu

Jeffrey M Gilbert

Chien-Fang Hsu

Chi-Shi Yee

Keangpo Ricky Ho

Chuen-Shen Bernard Shung

Hsuan-Yu Liu

Karim Nassiri Toussi

Guocong Song

Shihchieh Lee

Ching-Wen Hsiao

Yasantha N Rajakarunanayake

Kiran Uln

Ching-Hwa Yu

Cheng-Yi Chang

Yuh-Ren Jauh

Keng Leong Fong

George Chien

Karim Nassiri-Toussi

Kun-Chien Hung

Weisung Tsao

Stephen Pope

Dengwei Fu

Tom Hsiou-Cheng Kao

Keang-Po Ricky Ho

James Chi-Shi Yee

Li Ma

Dingchung Jann

Chih-Kai Chen

Tung Sheng Yang

Bajko Gabor

Thomas Edward Pare Jr

Jr Thomas Edward Pare

James Wang

Huanhun Ye

Various schemes pertaining to global cyclic shift delay (CSD) assignment for distributed-tone resource unit (dRU) transmissions in wireless communications are described. An apparatus applies a CSD index assignment in distributing a plurality of subcarriers of a resource unit (RU) over a bandwidth to generate an extremely-high-throughput short training field (EHT-STF) of a dRU. The apparatus then transmits symbols of the EHT-STF of the dRU. The CSD index assignment is based on a dRU hierarchical structure with one or more CSD indexes shared among multiple dRUs of different sizes but not among multiple dRUs of a same size.

Global CSD index assignment for distributed-tone resource unit transmissions

Various schemes pertaining to long training field (LTF) and short training field (STF) transmission for wide bandwidth 240 MHz with more direct-current (DC) tones in wireless communications are described. A processor of an apparatus generates either or both of an LTF and a STF of a physical-layer protocol data unit (PPDU) with a center 996-tone resource unit (RU) having more than a predetermined number of DC tones. The processor then performs a wireless communication in a wide bandwidth (e.g., 240 MHz) with the PPDU.

LTF and STF transmission for wide bandwidth 240MHz with more DC tones in wireless communications

Various schemes pertaining to pilot tone design for distributed-tone resource units (dRUs) in 6 GHz low-power indoor (LPI) systems are described. A communication entity generates a plurality of pilot tones of a dRU based on a hierarchical structure of pilot tones that is used for a regular RU (rRU). The communication entity then communicates with another communication entity using the dRU.

Pilot tone design for distributed-tone resource units in 6GHz low-power indoor systems

A method pertaining to enhanced resource unit (RU) allocation subfield design for extreme high-throughput (EHT) systems involves determining one or more RUs based on an RU allocation table. The method also involves performing wireless communications using the one or more RUs. The RU allocation table includes at least a combination of a plurality of aggregations of multiple RUs.

Enhanced resource unit allocation subfield design for extreme high-throughput systems

Various schemes pertaining to optimization of binary convolutionally encoded (BCC) interleaver and low-density parity-check (LDPC) tone mapper for distributed-tone resource units (RUs) and multi-resource units (MRUs) in 6 GHZ low-power indoor (LPI) systems are described. An apparatus processes a plurality of subcarriers of a RU to generate a distributed-tone RU (dRU) or a distributed-tone multi-RU (dMRU). The apparatus then transmits the dRU or the dMRU to another apparatus. In processing the plurality of subcarriers, the apparatus codes a plurality of information bits by either LDPC encoding or BCC encoding and transmitting the plurality of subcarriers with one or more optimization parameters using a LDPC tone mapper or a BCC interleaver.

Optimization of BCC interleaver and LDPC tone mapper for distributed-tone resource units and distributed-tone multi-resource units

Accordingly, embodiments of the present invention provide methods and devices for low power transmissions that provide improved wireless coverage for 6 GHz LPI transmissions using novel tone mapping techniques. Resource units (RUs) tones are distributed over larger bandwidths to achieve higher transmission power while operating within the PSD requirements of LPI. The tone distribution can include global tone mapping of smaller RUs distributed onto larger bandwidths, or group-based tone distribution methods, for example.

Methods and devices for tone distribution for low power transmissions in a wireless network

Embodiments of the present invention provide transmission schemes and methods that can assign multiple resource units (RUs) to a single wireless station using Aggregate Media Access Control Protocol Data Unit (A-MPDUs) in a flexible transmission scheme for the multi-RUs transmission. Embodiments of the present invention can send and receive data sing multiple resource units allocated to a single wireless STA. A 20 MHz segment and a 40 MHz segment on either side of a punctured portion of an 80 MHz segment can be treated as separate resource units (RUs), and the RUs can be assigned to the same wireless user/device. Each punctured 80 MHz segment can be interleaved separately. Different processes for encoding data and transmission schemes for transmitting the data are described herein according to embodiments of the present invention. Different transmission schemes can be used based on the size and number of the RUs allocated to an STA.

Aggregated resource unit transmission scheme for single station allocation in WLAN

Various schemes pertaining to optimization of distributed-tone resource unit (dRU) and distributed-tone multi-resource unit (dMRU) designs for transmission in a 6 GHz low-power indoor (LPI) system are described. An apparatus distributes a plurality of subcarriers of a resource unit (RU) to generate a dRU or a distributed-tone multi-RU (dMRU) on an 80 MHz frequency segment or subblock. The apparatus then communicates with a communication entity using the dRU or the dMRU.

Optimization of distributed-tone resource unit and multi-resource unit designs for transmission in 6GHz LPI system

Various schemes pertaining to optimization of distributed resource unit (RU) tone plans for peak-to-average power ratio (PAPR) reduction in 6 GHz low-power indoor (LPI) systems are described. An apparatus distributes a plurality of subcarriers of a RU over a bandwidth to generate a distributed-tone RU (dRU) or a distributed-tone multi-RU (dMRU). The apparatus then communicates with a communication entity using the dRU or the dMRU. In distributing the plurality of subcarriers of the RU to generate the dRU or the dMRU, the apparatus distributes the plurality of subcarriers of the RU with a predefined span over each 20 MHz frequency segment or subblock in the bandwidth and with a gap of at least a minimum size around a center direct-current (DC) tone in a distribution pattern of the plurality of subcarriers to result in reduction in a PAPR in communicating with the communication entity.

Distributed resource unit tone plan optimization for PAPR reduction

Various schemes pertaining to designs of distributed-tone resource units (dRUs) on a partial bandwidth in a 6 GHz low-power indoor (LPI) system are described. An apparatus distributes a plurality of subcarriers of a resource unit (RU) to generate a dRU over a partial bandwidth of a bandwidth. The apparatus then communicates with a communication entity using the dRU.

Designs of distributed-tone resource units on partial bandwidth

Various schemes pertaining to transmission power control (TPC) for distributed-tone resource units (dRUs) and distributed multi-resource units (dMRUs) in 6 GHz low-power indoor (LPI) systems are described. A communication entity distributes subcarriers of a resource unit (RU) and a multi-RU over a physical-layer protocol data unit (PPDU) bandwidth or a frequency subblock of a bandwidth to generate a dRU and a dMRU associated with an uplink (UL) trigger-based (TB) PPDU comprising at least an extremely-high-throughput (EHT) short training field (EHT-STF), an EHT long training field (EHT-LTF), and a payload of data. The communication entity then transmits the dRU or dMRU associated with the UL TB PPDU with transmission power control such that symbols associated with the EHT-STF are transmitted with a first power and symbols associated with the EHT-LTF and the payload are transmitted with a second power.

Transmission power control for distributed-tone resource units and multi-resource units in 6GHz low-power indoor systems

Systems and methods of transmitting and receiving a Wake-Up Radio (WUR) packet by using a simplified preamble structure that contains no training field. The preamble carries a signature sequence selected from a set of predefined sequences, each corresponding to a different data transmission rate. The preamble and the control information of the WUR packet are transmitted in the same rate as indicated by the selected sequence. Hence, a receiving WUR can determine the data transmission rate and locate the associated control information directly if a sequence that matches a predefined signature sequence is detected. The same sequence or in combination with an additional sequence in the preamble may also be used to indicate automatic gain control synchronization, packet type and other related information.

Efficient preamble design and modulation schemes for wake-up packets in WLAN with wake-up radio receivers

An encryption mechanism used on cooperative multi-band wireless STA architecture that enables full duplex operations. In encrypting a frame, an AAD can be constructed by using a selected MAC address, which may not be associated with a band to be used for transmitting the frame in an upcoming TXOP. An STA that supports simultaneous transmission in a multi-band operation uses the same MAC address to encrypt the frames to be transmitted on different bands. An AAD is constructed by using a same MAC address corresponding to one of the transceivers. A transmit STA may specify band information used for encryption in the MAC header, which serves to signal the receive STA to decrypt the frame by using the proper information.

Encryption mechanism used in multi-band channel access

Various schemes pertaining to designs of a distributed-tone resource unit (dRU) on a frequency subblock of a wide-bandwidth physical-layer protocol data unit (PPDU) in 6 GHz low-power indoor (LPI) systems are described. A communication entity generates a PPDU with subcarriers of a resource unit (RU) distributed on a frequency subblock of a plurality of frequency subblocks of a wide bandwidth. The communication entity then transmits the PPDU over the wide bandwidth. Each of the plurality of frequency subblocks includes a 20 MHz, 40 MHz or 80 MHz frequency subblock. The wide bandwidth includes an 80 MHz, 160 MHz or 320 MHz bandwidth. The subcarriers of the RU are distributed on the frequency block by applying a constant shift to a dRU on a 20 MHz, 40 MHz or 80 MHz bandwidth.

Distributed-tone RU on frequency subblock of wide-bandwidth PPDU

Various schemes pertaining to subcarrier indices for distributed-tone resource units (RUs) in 6 GHz low-power indoor (LPI) systems are described. A communication entity distributes frequency tones of a RU over a distribution bandwidth as a distributed-tone RU (dRU). The communication entity also generates generating a plurality of subcarrier indices for the distributed-tone RU such that a distribution of the distributed-tone RU is symmetric or asymmetric to a direct-current (DC) tone along an axis of subcarrier indices. The communication entity then communicates wirelessly using the distributed-tone RU in a 6 GHz LPI system.

Subcarrier indices for distributed-tone resource units in 6GHz low-power indoor systems

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San Jose, CA, United States of America

Jianhan Liu