Abstract:
Briefly, in accordance with one embodiment of the invention, an access point may provide multiple access to a single medium by providing time division multiple access to the medium. During a first phase to communicate with devices of a first type, the access point may transmit a beacon to indicate to devices of a second type not to communicate during the first phase. During a second phase to communicate with devices of the second type, the access point may transmit a beacon to indicate to devices of the first type not to communicate during the second phase. In one particular embodiment, the access point may transmit a medium reservation packet to indicate reservation of the medium for affected devices. Phases may be adaptively extended by transmitting additional medium reservation packets until it is desired to end the present phase and transition to the second phase.
Abstract:
In a communications packet directed to multiple addresses and having a directory of the addresses in order of transmission, a device receiving the packet may use the directory to help determine when the last frame in which the device has an interest is received, and then enter a low power mode for the remainder of the packet reception. The device constructing the packet for transmission may arrange the frames in a manner that promotes overall power savings in the group of addressed devices.
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:
The method for a wireless network that utilizes adaptive modulation techniques and supports a short-NAV type wireless medium reservation scheme comprises the steps of : - receiving a first wireless frame from a remote network device, said first wireless frame having a medium reservation period associated with it to reserve a network medium for a subsequent transmission to said remote network device (122, 132) , - determining a data rate to use to transmit user data to said remote network device (124, 134) , and - when said data rate does not allow an entire data MAC protocol data unit (MPDU) to be transmitted in a data frame within said medium reservation period, fragmenting said data MPDU to identifiy a first fragment that can be transmitted in a data frame within said medium reservation period (126) .
Abstract:
According to some embodiments, a technique is provided that coordinates transmission of frames to reduce collisions. Frames are coordinated according to, for example, operation type, frame length, and solicited response. A bases station gains access to a wireless medium and transmits multiple coordinated frames to multiple communication units. The transmissions to the multiple communication units may be substantially simultaneous in that at least a portion of the different frames are transmitted at the same time. The different frames may be substantially back-end aligned where the maximum difference between the termination time instances of the frame transmissions is controlled to reduce collisions.
Abstract:
A method and device. The device is to use a first frequency segment of a wireless non-contiguous channel to monitor non-operating channels within an operating range of a wireless network; and use a second frequency segment of the wireless channel as a communication channel of the wireless network.
Abstract:
Technology for establishing a device to device (D2D) connection is disclosed. One device comprises a UE that includes a proximity discovery module configured to receive discovery information from at least one of a wireless wide area network (WWAN) and a wireless local area network (WLAN) to assist in establishing a D2D communication channel with at least one additional UE. A D2D communication module is configured to establish the D2D communication channel between the UE and the at least one additional UE using the discovery information. The D2D communication channel is established in a licensed radio frequency band and is managed by the WWAN.
Abstract:
A reliable multicast for a power saving protocol such as IEEE 801.11n is described. A TSPEC frame is modified to carry the multicast address, which address can be represented in a short-hand form with, for instance, and AID. During the downlink times, the AID may also be used to identify the multicast downlink allocation in a PSMP frame.