30 results about "Physical Layer Convergence Protocol" patented technology

In an example embodiment, a method for speculative power saving. The beginning portion of a header (e.g. a physical layer convergence protocol “PLCP” header of a beacon) is processed to determine whether a predefined bit is set that indicates whether the frame contains any delivery traffic indication for buffered multicast and / or unicast frames. If the bit is set, indicating the frame contains no delivery traffic indication of buffered frames, receiving and processing of the frame stops (e.g. the remainder of the PPDU is not processed) and the receiver switches to a power save state. In an example embodiment, if a predefined NULL beacon frame is detected, receiving and processing of the frame (and PPDU) stops and the receiver switches to a power save state.

Systems and methods for wake up signaling in 802.11 DFS channels include enabling a primary connectivity radio of a device responsive to a wake up radio of the device receiving a composite radio signal transmitted by an access point in an 802.11 Dynamic Frequency Selection (DFS) channel, the composite radio signal comprising a wake up radio signal and a time-continuous signal, the time-continuous signal being substantially adjacent in frequency, but not necessarily contiguous in frequency, to the wake up radio signal; and exchanging data with the access point through the primary connectivity radio after the primary connectivity radio is enabled. The wake up radio signal may be an IEEE 802.11ba signal disposed in a center frequency band of a IEEE 802.11ax Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU). The time-continuous signal may be real or emulated data traffic disposed in at least one IEEE 802.11ax resource unit.

The invention provides a method and system for realizing wireless communication. The method comprises: related work, with a high real-time performance requirement, of a low-level protocol of a communication system is realized based on real-time extension (RTX), wherein the related work includes related work of a physical layer protocol and a physical layer convergence protocol layer state machine; relates work, with a low real-time performance requirement, of a high-level protocol of a communication system is realized based on windows, wherein the related work includes related work of an MAC layer protocol and a network layer protocol; and a shared memory and an event body are established, so that information synchronization and interaction between the low-level protocol of the communication system and the high-level protocol of the communication system are realized. According to the technical scheme, the real-time extension characteristic of the RTX is fully utilized; and the real-time performance and stability of the wireless communication system based on the Windows system can be enhanced substantially.

A method, wireless transmit / receive unit (WTRU), and base station are described for communicating small packets. A WTRU generates a packet with one or more of a Medium Access Control (MAC) or Physical Layer Convergence Protocol (PLCP) header that includes fields. Where the WTRU has data buffered for transmission, the WTRU includes in the field information indicating the time or transmission opportunity (TXOP) required to transmit at least one packet of data that the WTRU has buffered for transmission . The WTRU transmits the packet to another WTRU in the wireless network. The WTRU receives another packet with an authorized TXOP from another WTRU based on the time required to transmit at least one packet of data that the WTRU has buffered for transmission.

The invention provides a communication method and communication device of a wireless local area network, an access point and a site. The communication method of the wireless local area network comprises: generating physical layer convergence protocol unit data frames, wherein the physical header of the physical layer convergence protocol unit data frames comprise identifying bits for indicating the repeated emergence conditions of HE (High efficiency)-SIGA (Signal) fields; and sending the physical layer convergence protocol unit data frames to a receiving side. According to the technical solution of the invention, the repeated emergence conditions of the HE-SIGA fields can be rationally defined and indicated; further the repeated mode of the HE-SIGA is ensured to be applied so as to expand the coverage; and therefore, the regional throughput is indirectly improved.

Disclosed are method and device for indicating a PLCP header transmission mode. A method for generating a physical layer convergence protocol (PLCP) of a data frame can comprise the following steps: demodulating PLCP header mode information based on a scrambling sequence of the received frame or information elements included in the received frame; and generating a data frame including the PLCP header generated based on the PCLP header mode information. The PLCP header mode information comprises at least one indication from a space time block coding mode indication, a guard interval mode indication, and a repetition mode indication. The invention is capable of improving data transmission efficiency by adaptively determining a transmission mode of a PCLP header to a channel situation.