Mediatek Singapore Pte. Ltd.

Mediatek Corporation

Spreadtrum Communications Corporation

Shengquan Hu

Jianhan Liu

Thomas Edward Pare

Thomas Edward Pare, Jr

Tianyu Wu

Yongho Seok

Gary Allen Anwyl

Yungping Hsu

Hung-Tao Hsieh

Shuling Feng

Hsuan-Yu Liu

Ching-Wen Hsiao

Chih-Shi Yee

Datong Chen

Kai Ying Lu

YungPing Hsu

Jingdong Lin

Kun-Chien Hung

Yung-Ping Hsu

Jin Ji

Ying Tian

Tung Sheng Yang

Thomas Edward Pare Jr

Jr Thomas Edward Pare

Techniques pertaining to transmission methods of probabilistic shaping (PS) modulation in wireless communications are described. An apparatus (e.g., station (STA)) processes each subblock of a plurality of subblocks of a data unit by padding each subblock after scrambling and PS mapping each subblock to result in each subblock having a fixed length before further processing including encoding and modulation. The apparatus then transmits the plurality of processed subblocks.

Transmission methods of probabilistic shaping modulation in wireless communications

Techniques pertaining to scalable waveform and numerology designs for next-generation wireless local area networks (WLANs) in 60 GHz frequency band are described. A first apparatus communicates in a 60 GHz frequency band wirelessly with a second apparatus based on a scalable waveform and numerology design with at least one of: (i) selection of a specific subcarrier spacing (SCS); (ii) selection of a specific guard interval (GI) design; and (iii) reuse of a preexisting channelization or tone plan.

Scalable waveform and numerology designs for next-generation WLAN in 60GHz frequency band

Techniques pertaining to scalable waveform and numerology designs for next-generation wireless local area networks (WLANs) in 60 GHz are described. A first apparatus communicates in a 60 GHz band wirelessly with a second apparatus based on a specific numerology design with at least one of: (i) selection of a specific subcarrier frequency spacing; (ii) selection of a specific guard interval (GI) design; and (iii) reuse of a preexisting channelization or tone plan.

Scalable waveform and numerology designs for next-generation WLAN in 60GHz band

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

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.

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San Jose, CA, United States of America

Shengquan Hu