Abstract:
An embodiment of the present invention provides a method, comprising broadcasting base station (BS) channel allocation methods and supported interference mitigation techniques in a whole cell by the base station and reporting classification information by mobile stations (MSs) within the cell to said base station about their preferred interference mitigation (IM) techniques.
Abstract:
Techniques for protecting information elements transmitted to mobile stations from intruders. The technique can involve applying a randomized mask over an information element and then providing a scrambled cyclic redundancy check (CRC) value. A seed for the randomized mask can be different from a seed for the scrambled CRC value.
Abstract:
A method for setting and adjusting MAC fragmentation threshold for IEEE 802.11 networks operating at different data rates is presented. The fragmentation threshold is adjusted based on throughput performance, delay constraints and hidden node influence.
Abstract:
A method and apparatus for calculating an optimal sub-channel allocation of Orthogonal Frequency Division Multiple Access (OFDMA) from a first bipartite graph that may map users, to a second bipartite graph that may map additional users, including original users. A calculation of each bipartite graph may include a calculation of maximum weight paths and matchings. Using a bipartite graph method for OFDMA sub-channel allocation may improve the time and complexity when establishing an OFDMA wireless system.
Abstract:
Embodiments of a base station and method for mitigating interference in a sectorized wireless communication network are generally described herein. Other embodiments may be described and claimed. In some embodiments, some partitions of subchannels are configured in accordance with the distributed subcarrier permutation scheme for use within each sector of a base station, and one or more partitions of subchannels is configured in accordance with the contiguous subcarrier scheme for use within each sector of the base station.
Abstract:
Disclosed is a method for improving power efficiency of subscriber stations in a communication network. A subscriber station is uniquely identified by a base station using a connection Identifier (CID). The method includes splitting CIDs of subscriber stations to form a plurality of first parts and a plurality of second parts. The method includes generating an index including a plurality of entries and transmitting the index to a plurality of subscriber stations by the base station. One or more subscriber stations switch to a power-saving mode on absence of a match between each entry of the plurality of entries with an equivalent part of CIDs associated with the one or more subscriber stations, thereby conserving power and improving power efficiency of the subscriber station. Further, at least one information element in a sub-MAP message may be compressed to reduce overhead.
Abstract:
Machine-readable media, methods, apparatus and system for transmitting ACK/NACK signal in a wireless communication system are described. In some embodiments, a sequence corresponding to one of acknowledge (ACK) information and non-acknowledge (NACK) information may be determined. Then, the sequence may be mapped onto a transmission channel for later transmission from the mobile station to a base station. In some embodiments, the transmission channel may be allocated with at least a part of three feedback mini-tiles (FMTs), wherein each of the FMTs comprises two subcarriers contiguous in frequency domain by six orthogonal frequency division multiplexing (OFDM) symbols contiguous in time domain and the three FMTs being discontinuous in frequency domain.
Abstract:
An apparatus and method for HARQ timing control in wireless communication systems is disclosed. The apparatus and method provides one unified algorithm to determine HARQ timing, with consideration of the downlink-to-uplink ratio, the presence of legacy zones, support of relay zones, and variable transmission time interval length. The disclosed algorithm guarantees sufficient processing time, at both the transmit and receive sides. Further, retransmissions occur in a periodic manner, simplifying the implementation.
Abstract:
Embodiments of an apparatus and method for coding of wireless transmissions channel are generally described herein. Other embodiments may be described and claimed.
Abstract:
Embodiments of the present invention provide an acknowledgment channel design in which an acknowledgment sequence is scrambled with a station-specific scrambling sequence. Other embodiments may be described and claimed.