摘要:
Various schemes pertaining to long training field and short training field transmission for wide bandwidth 240MHz with more direct-current tones in wireless communications are described. A processor (1312, 1322) of an apparatus (1310, 1320) generates either or both of a long training field and a short training field of a physical-layer protocol data unit with a center 996-tone resource unit having more than a predetermined number of direct-current tones (1410). The processor (1312, 1322) then performs a wireless communication in a wide bandwidth (e.g., 240MHz) with the physical-layer protocol data unit (1420).
摘要:
Embodiments of the present invention provide methods and devices for performing wireless sensing operations that can accommodate different Rx frequency responses with minimum PHY changes to increase the performance and reliability of wireless sensing in wireless local area network, WLAN, networks. Rx frequency response information can be obtained as channel state information, CSI, in a loopback test and can further be normalized with the total gain in the receiver chain leading to CSI estimation. Moreover, different Rx frequency responses can be categorized into limited groups with underlying circuit conditions based on their frequency response variations. The different Rx frequency responses can be indicated in subfields of a CSI report transmitted to the sensing initiator for performing sensing operations with the sensing responder.
摘要:
Techniques pertaining to 80MHz distributed-tone resource unit, dRU, tone planbased dRU designs for wide distribution bandwidths 160MHz and 320MHz in wireless communications are described. An apparatus, e.g., station, STA, generates a distributed-tone resource unit, dRU, using a 80MHz dRU tone plan as a basic building block (3610). The apparatus then performs a wireless communication in a 160MHz or 320MHz distribution bandwidth with the dRU (3620).
摘要:
Techniques pertaining to transmission methods of resource unit, RU, distribution and tone repetition for Enhanced Long Range, ELR, communications are described. An apparatus, e.g., station, STA, generates (1810) a resource unit, RU, or multi-RU, MRU. The apparatus then performs (1820) 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.
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).
摘要:
Techniques pertaining to preamble designs for next-generation wireless local area networks, WLANs, in 60GHz band are described. A first apparatus communicates in a 60GHz band wirelessly with a second apparatus (910) by transmitting a first physical-layer protocol data unit, PPDU, to the second apparatus (912) and/or receiving a second PPDU from the second apparatus (914). Each of the first PPDU and the second PPDU and a respective preamble thereof are either with or without at least partial backward compatibility with one or more preexisting PPDU formats and preambles.
摘要:
Methods and apparatus are provided for structured resource allocation signaling. In one novel aspect, an 8-bit RU allocation filed is allocated in the HE-SIG-B common field for each 20MHz. The structured resource signaling supports more than four MU-MIMO users. In one embodiment, the STA decodes the 8-bit RU allocation signal following a structured resource unit (RU) allocation rule, and determines the RU. In one embodiment, the STA decodes the first two bits of the 8-bit RU allocation signal to determine a first category of the RU allocation. The categories of the RU allocation includes a large RU size category indicating larger than 20MHz RUs exist, a two 106-tone category indicating two 106-tone RUs exist, and a no-large-RU category indicating only smaller-than-242-tone RUs exist. The STA further decodes based on the category. A lookup table (LUT) for RU allocation is built and decoded based on a structured signaling rule.
摘要:
A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.