摘要:
Embodiments of a system and method for communicating over an extended range in a wireless network are generally described herein. Other embodiments may be described and claimed. In some embodiments, a packet is generated to include an extended range header if the mobile station is identified as an extended range mobile station. The extended range header and a data portion of the packet have a lower data rate than packets for regular range mobile stations and are encoded to correspond to rates for un-encoded transmissions to the regular range mobile stations.
摘要:
Some embodiments of the invention provide devices, systems and methods of clock synchronization. For example, a system in accordance with an embodiment of the invention includes a wireless access point to transmit a signal instructing a plurality of wireless communication stations to substantially simultaneously transmit wireless signals at a pre-defined time; and a wireless communication station including a synchronizer to synchronize, at a non allocated time slot, a clock of the wireless communication station to a clock of the wireless access point based on an estimated frequency offset of a data packet received from the wireless access point.
摘要:
Apparatus and systems, as well as methods and articles, may operate to maintain a wireless local area network (WLAN) association using a first receive chain in a multi-chain WLAN node, and to passively scan for one or more access point(s) while maintaining the association. The passive scan may be performed using a second receive chain collocated with the first receive chain in the WLAN node, wherein the second receive chain is unassigned to participate in the WLAN association.
摘要:
Embodiments of the present invention provide a method, apparatus and system for. The method according to some exemplary embodiments of the invention may include determining whether an acquired packet is erroneous by determining whether an address sequence of the acquired packet is erroneous. Other embodiments are described and claimed.
摘要:
A frequency-hopped spread-spectrum multiple-access (FHSS-MA) wideband transceiver may support frequency-division multiple-access (FDMA) functionality by including a plurality of digital chains corresponding to FHSS-MA physical channels, individually and dynamically compensated for in-phase/quadrature imbalance in the transmit and/or receive portion. A FHSS-MA transceiver supporting FDMA functionality may coordinate FH sequence selection among FHSS physical channels to minimize inter-channel interference while also supporting legacy FHSS-enabled devices (e.g., Bluetooth®). The FHSS-MA transceiver may be incorporated into a wireless bridge device to facilitate low-latency communications over wireless local-area networks (WLANs), wireless wide-area networks (WWANs) or broadcast, with multiple FHSS-enabled devices that may be paired with the wireless bridge device using FHSS-MA channels. The wireless bridge device may enable a FHSS-enabled device to re-pair with a personal device. Such wireless bridge devices may be networked into a wireless bridge network that may increase the number of FHSS-enabled devices that may be accommodated and/or increase coverage range.
摘要:
Embodiments of methods for coordinating communications among wireless networks and a co-located wireless communication device are generally described herein. Other embodiments may be described and claimed. In some embodiments, frame-timing parameters are reported by a broadband wireless access (BWA) network node to a node of a wireless local area network (WLAN), and the WLAN node may transmit the frame-timing parameters to an access point ad the WLAN. The BWA network node and the WLAN node may be co-located within the wireless communication device. The transmission time of downlink transmissions for receipt by the WLAN node may be selected by the access point based on the frame-timing parameters to reduce interference caused by concurrent uplink transmissions by the BWA network node.
摘要:
Embodiments of a mobile station and a method for channel sounding in a wireless network are generally described herein. Other embodiments may be described and claimed. In some embodiments, channel sounding is performed using a single radio frequency transmitter chain in a multiple-input multiple-output (MIMO) system. In some embodiments, portions of a channel sounding preamble are serially transmitted on several transmit mobile-station antennas to enable MIMO beamforming by an access point.
摘要:
A wireless wideband transceiver may be able to communicate with multiple frequency-hopped spread-spectrum (FHSS) devices concurrently over multiple frequencies over a short range by including a plurality of digital chains corresponding to the FHSS physical channels, individually and dynamically compensated for in-phase/quadrature imbalance in the transmit and/or receive portion. To further improve communications the transceiver may also mitigate cross interference between adjacent channel signals that are received and/or transmitted simultaneously, avoid false reception and/or transmission of co-channel signals, delay respective FHSS channels transmissions relative to other channels transmissions, speed up connection to FHSS devices and coordinate Time Division Duplexing (TDD) operation according to application dependent TX/RX binary pattern. A device that includes such a transceiver (FHSS-hotspot) may enable the concurrent usage of multiple commercially available FHSS peripheral devices without the need for additional personal host devices to be carried along with them, and in addition enable the concurrent usage of multiple commercially available FHSS personal data devices while reducing their radiation and/or latency and/or usage cost and/or power, to establish a localized multi-device multimedia session, and/or to interface with a communications network to communicate with remote parties, and/or to interface with broadcast devices to stream contents.
摘要:
Some embodiments of the invention provide devices, systems and methods of coexistence mode switching among collocated transceivers. For example, a method in accordance with an embodiment of the invention includes monitoring reception reliability of a first transceiver in relation to concurrent transmission activity of a second, collocated, transceiver; and based on the monitoring, setting a flag indicating a request by the first transceiver that the second transceiver modify its coexistence mode.
摘要:
Embodiments of the present invention provide a method, apparatus and system for acquiring, by a communication device, an address sequence of an acquired packet transmitted over a communication channel and determining whether to receive the acquired packet. The method involves comparing the address sequence with one or more address sequences of previously-acquired packets stored in an address list. Then, if the address sequence does not appear in the address list, the address sequence is stored in the list. If the address sequence of the packet, match an address sequence stored in the address list, the packet is received and the and further checked to determine whether the address sequence of the packet is erroneous. Other embodiments are described and claimed.