Abstract: An apparatus and a system, as well as a method and article, may operate to reserve access to one or more overlapping channels having a resource allocation (e.g., a frequency range) overlapping a resource allocation of at least two overlapped channels by reserving access to the overlapped channels. Reservation of the overlapped channels may occur in a substantially simultaneous, serial, or semi-serial fashion.

Abstract: Embodiments of a high-throughput (HT) communication station (STA) and method for communicating over a primary and a secondary channel are generally described herein. In some embodiments, the high-throughput (HT) communication station (STA) comprises a physical layer (PHY) and a media-access control (MAC) layer to provide a data unit to the physical layer. The PHY layer may be configured to transmit a packet that includes the data unit over a channel bandwidth comprising a first channel and an additional channel in accordance with an OFDM communication technique. The packet may have a frame structure that includes a channel bandwidth parameter to indicate the channel bandwidth used, a modulation and coding parameter to indicate a modulation and coding scheme of the packet as transmitted over the channel bandwidth.

Abstract: A frame format provides for wideband wireless local area network communications and informs narrower-band communication units when the channels are occupied by wider-band communication units. In some embodiments, the frame format includes a channelization field identifying channels that are used for communicating subsequent wideband fields of a packet, and a wideband-header field communicated on the identified channels. The wideband-header field may identify sub-fields that may be present in the wideband-header field, and may identify the presence of a wideband-data field. A long-compatibility field may be present that provides protection at the MAC level. The long-compatibility field may transport MAC frames that may include medium-reservation information compatible with narrower-band communication units.

Abstract: Various embodiments are described for a trained data transmission for communication systems.

Abstract: An embodiment of the present invention provides an apparatus including a transceiver operable for broadcast/multicast traffic delivery in a wireless network, wherein the transceiver is adapted to identify local broadcast traffic and limit a broadcast domain to a basic service set (BSS) servicing the local broadcast traffic.

Abstract: An embodiment of the present invention provides an apparatus, comprising a transmitter capable of compressing header information in an aggregate of Media Access Control Service Data Units (MSDUs) by using one or more flags fields to describe which address fields are present in said aggregate.

Abstract: A base station may organize poll groups into groups having similar predicted durations of subsequent responses. In one embodiment predicted durations may be provided by the devices that are to be polled. In another embodiment the predicted durations may be based on past responses from the devices that are to be polled.

Abstract: Various embodiments are described for a trained data transmission for communication systems.

Abstract: A frame format provides for wideband wireless local area network communications and informs narrower-band communication units when the channels are occupied by wider-band communication units. In some embodiments, the frame format includes a channelization field identifying channels that are used for communicating subsequent wideband fields of a packet, and a wideband-header field communicated on the identified channels. The wideband-header field may identify sub-fields that may be present in the wideband-header field, and may identify the presence of a wideband-data field. A long-compatibility field may be present that provides protection at the MAC level. The long-compatibility field may transport MAC frames that may include medium-reservation information compatible with narrower-band communication units.

Abstract: Schemes are disclosed for efficiently training MIMO channels in wireless networks. In at least one embodiment, multiple STAs in a network may share a single channel sounding packet to develop corresponding beamforming matrices or CSI.

Abstract: Methods and structures are disclosed for use in implementing downlink spatial division multiple access (SDMA) in a wireless network. In at least one embodiment, a number of orthogonal sets of user devices are first identified within a coverage area. One of the identified orthogonal sets may then be selected based on a predetermined selection criterion. An SDMA exchange may then be initiated for the selected orthogonal set.

Abstract: Various embodiments are described to adaptively use a transmit opportunity.

Abstract: Techniques and structures are provided to support a short-NAV type wireless medium reservation scheme in a network that utilizes adaptive modulation techniques. The conventional long-NAV medium reservation technique uses a medium reservation period that reserves a wireless medium until the end of a present frame exchange. The short-NAV medium reservation technique, on the other hand, uses a medium reservation period that reserves the wireless medium until the end of the next transmission of the other communicating node involved in a frame exchange. In some embodiments, a short-NAV technique is provided where a medium reservation period is determined based upon a suggested data rate. If a device decides not to use the suggested data rate, the device may utilize packet fragmentation techniques to ensure that a subsequent data transmission does not exceed the specified medium reservation period.

Abstract: Apparatuses, systems, methods, and computer program products to save power in peer-to-peer communication devices associated with wireless communication networks are disclosed. Embodiments generally comprise wireless communications devices. A device may associate or connect with an access point and communicate with another device also connected to the access point. The devices may establish a direct link as part of a tunneled direct link system (TDLS) network. After establishing the direct link, the devices may negotiate a wakeup schedule, enabling both devices to enter power saving modes to conserve power. The devices may maintain the direct link while in power saving modes, enabling the devices to periodically exit the power saving modes and transfer buffered data.

Abstract: A method and mobile communication station for communicating orthogonal frequency division multiplexed (OFDM) symbols uses two or more antennas. The antenna parameters are set for beamforming, a transmit power level is initially set, and subcarrier modulation assignments are selected after the antenna parameters and the transmit power level are set to achieve a quality-of-service level for a particular application and data type of a service flow. The transmit power level may also be set based on a desired cell size.

Abstract: Apparatus and methods for selecting a transmit power level and subcarrier modulation assignments based on measured channel conditions to achieve a performance level for communications over a symbol-modulated subcarrier communication channel are provided. In some embodiments, the transmit power level may be changed depending on whether a desired packet error rate and/or a desired link data rate can be achieved based on selected subcarrier modulation assignments and a selected transmit power level.

Abstract: An apparatus and a system, as well as a method and article, may operate to send a selected data type without self-definition information to a receiver if a state capable of interpreting the selected data type has been maintained by the receiver, and to send the selected data type with the self-definition information to the receiver if the state capable of interpreting the selected data type has not been maintained by the receiver.

Abstract: In a wireless network communications device, transmit power levels may be interactively adjusted to dynamically maintain a desired level of network loading and/or data throughput within the network in a changing network environment.

Abstract: An apparatus and a system, as well as a method and article, may operate to send a selected data type without self-definition information to a receiver if a state capable of interpreting the selected data type has been maintained by the receiver, and to send the selected data type with the self-definition information to the receiver if the state capable of interpreting the selected data type has not been maintained by the receiver.

Abstract: Various embodiments are disclosed for techniques to perform channel access decisions and to select a transmit queue. These decisions may be performed, for example, based upon the age and number of packets in a queue. These techniques may allow a node to improve the length of data bursts transmitted by the node, although the invention is not limited thereto.