Abstract: A system and method for locating mobile stations in a wireless communication system such as a cellular system based on at least one received wireless signal and a database of geographical information.

Abstract: A system and method for constructing a signal propagation model in a wireless communication system such as a cellular system based on at least one received wireless signal correlated to a geographic location.

Abstract: A system and method for constructing a signal propagation model in a wireless communication system such as a cellular system based on at least one received wireless signal correlated to a geographic location.

Abstract: A system and method for locating mobile stations in a wireless communication system such as a cellular system based on at least one received wireless signal and a database of geographical information.

Abstract: A system and method for estimating velocity of a mobile station in a wireless communication system using time-frequency signal processing and a geographical database. The geographical database is used for prediction of ray trajectory and ray power to provide an estimate of propagation delay associated with database points.

Abstract: Three or more nodes, each with a plurality of antennas, communicate by transmitting messages simultaneously to each other. One of the nodes transmits two messages to two different destination nodes using different sets of its antennas. A receiving node receives at least two of the messages as a received signal, and uses a spatial demultiplexing algorithm such as VBLAST to extract from the received signal at least one message for which the receiving node is a destination node. Before the messages are transmitted, it is decided how many of its antennas each node is allowed to use to transmit each of its messages. For that purpose, the nodes exchange RTSs (Request To Send messages) and CTSs (Clear To Send messages). Collisions among the nodes are resolved. A transmission power and a route are selected for each message.

Abstract: A routing method operative in a content delivery network (CDN) where the CDN includes a request routing mechanism for routing clients to subsets of edge servers within the CDN. According to the routing method, TCP connection data statistics are collected are edge servers located within a CDN region. The TCP connection data statistics are collected as connections are established between requesting clients and the CDN region and requests are serviced by those edge servers. Periodically, e.g., daily, the connection data statistics are provdied from the edge servers in a region back to the request routing mechanism. The TCP connection data statistics are then used by the request routing mechanism in subsequent routing decisions and, in particular, in the map generation processes. Thus, for example, the TCP connection data may be used to determine whether a given quality of service is being obtained by routing requesting clients to the CDN region.

Abstract: Three or more nodes, each with a plurality of antennas, communicate by transmitting messages simultaneously to each other. One of the nodes transmits two messages to two different destination nodes using different sets of its antennas. A receiving node receives at least two of the messages as a received signal, and uses a spatial demultiplexing algorithm such as VBLAST to extract from the received signal at least one message for which the receiving node is a destination node. Before the messages are transmitted, it is decided how many of its antennas each node is allowed to use to transmit each of its messages. For that purpose, the nodes exchange RTSs (Request To Send messages) and CTSs (Clear To Send messages). Collisions among the nodes are resolved. A transmission power and a route are selected for each message.

Abstract: A vehicle communication system including a combined radar and wireless communication system coupling a plurality of vehicles. Preferably, the system also includes a plurality of access points which are coupled for wireless communication to the vehicles. There is also shown a method for vehicle communication including coupling a plurality of vehicles by means of a combined radar and wireless communication system.

Abstract: A cellular system, in which frequency channels are allocated among transceivers which transmit to sectors of a cell, in which adjacent frequencies do not appear in adjacent sectors within the cell. A series of consecutive frequency channels is allocated to these transceivers, sequentially and alternately between opposing pairs of vertical sectors. Allocation is started from a first pair, and continued, each time, to the next pair which is adjacent to its preceding pair in clockwise or counterclockwise direction. Optionally, at least one frequency channel from the series of frequency channels is skipped, each time before continuing to allocate frequency channels to the next pair. By doing so, adjacent frequency channels are not allocated to adjacent sectors, and adjacent frequency channels do not appear in adjacent sectors even after moving allocated frequency channels from a sector to each of its adjacent sectors.

Abstract: A vehicle communication system including a combined radar and wireless communication system coupling a plurality of vehicles. Preferably, the system also includes a plurality of access points which are coupled for wireless communication to the vehicles. There is also shown a method for vehicle communication including coupling a plurality of vehicles by means of a combined radar and wireless communication system.