Abstract:
Systems and methods for scalable discovery in contention-based peer-to-peer (P2P) networks are described herein. A method for managing access to a contention- based broadcast channel in a P2P wireless communication network as described herein includes obtaining one or more system timing parameters, the system timing parameters including at least a collision probability tolerance; and configuring a time structure for access to the contention-based broadcast channel using the system timing parameters, wherein the wakeup intervals are allocated between a contention period and a non- contention period and configuring the time structure comprises setting an upper-bound backoff counter value associated with the contention period as a function of at least the collision probability tolerance.
Abstract:
A collaborative method for a node includes forming a local network with at least one other node using a lower power subsystem; selecting a master node from among the local network based on a first set of criteria; and communicating with a back end server over a wireless wide area network (WWAN) using a higher power subsystem. An apparatus may include a first subsystem for communicating with a local network; and a second subsystem having an active mode and an inactive mode, the second subsystem for communicating with a wireless wide area network (WWAN) when in the active mode, the apparatus selecting the active mode or inactive mode based on a set of criteria.
Abstract:
Methods and apparatus for multiple user uplink are provided. In one aspect, method for wireless communication includes receiving a message comprising a request for two or more stations to concurrently transmit an uplink transmission. The method further includes determining a status of a medium at a station based on a clear channel assessment (CCA) or a network allocation vector (NAV). The method further includes selectively transmitting the uplink transmission based on the indication of the status of the medium.
Abstract:
A method, an apparatus, and a computer-readable medium for wireless communication are provided. In an aspect, an apparatus may be configured to transmit a first frame that includes a delay indicator. The apparatus may be configured to receive a second frame from a station based on the transmitted first frame. The apparatus may be configured to determine when to transmit a third frame based on the received second frame. In this aspect, the delay indicator may indicate whether the access point will delay transmitting the third frame after receiving the second frame during multi-user uplink operation.
Abstract:
The present disclosure provides techniques for configuring the utilization of request-to-send/clear-to-send (RTS/CTS) protocol procedures based on varying conditions at the STA. For example, an AP may identify one or more conditions, when satisfied, may trigger the STA to either enable or disable uplink (UL) transmissions associated with a RTS/CTS protocol procedure. In some aspects, an AP may determine a transmit opportunity (TXOP) threshold for an STA and may determine whether to broadcast a message having the TXOP threshold to multiple STAs including the STA or unicast the message to the STA. An STA may receive a message from an AP having a TXOP threshold and may replace, based on an indication in the received message, a current TXOP threshold in the STA with the TXOP threshold in the received message. The STA may transmit an UL RTS frame in response to a determination that a planned TXOP duration satisfies the TXOP threshold.
Abstract:
A wireless device may utilize enhanced OBSS identification techniques to determine whether an interfering transmission is associated with an OBSS. In an example, a wireless device may receive a WLAN packet that includes a preamble and a data region. The wireless device may analyze the preamble to determine whether the WLAN packet is an OBSS packet. If the wireless device determines there is insufficient information in the preamble to identify the WLAN packet as an OBSS packet, the wireless device may decode a portion of the data region (e.g., a MAC header) to determine if the WLAN packet is an OBSS packet. Prior to declaring a successful decoding of the MAC header, the wireless device may confirm the MAC header has been received reliably. Additionally or alternatively, BSS identifiers may be included in the data region and used to determine if the WLAN packet is associated with an OBSS.
Abstract:
Systems, methods, and devices for multiple users sharing common wireless resources are disclosed. A method includes receiving a frame from one or more wireless devices on one or more channels selected from a set of wireless channels. The frame includes a pre-association identifier.
Abstract:
Methods, systems, and devices are described for wireless communication at a receiving device. A receiving device may receive a first physical layer header of a first wireless local area network (WLAN) protocol data unit over a shared radio frequency spectrum band. The first physical layer header may include at least a first basic service set (BSS) identifier and a first device association identifier (AID). The receiving device may perform, based at least in part on the first BSS identifier and the first device AID, an intra-frame operation including a power saving operation and/or a receive filtering operation.