Abstract: Wireless routers having an ADSL or cable connection to content data available via the Internet, a wired connection for connecting local clients in a LAN and a wireless controller for connecting to other wireless routers and clients in a wireless local area networks (WLANs). The WLANs often intersect and therefore it is possible to communicate between wireless routers in order to exchange content data via the wireless LAN in addition to the ADSL or cable connection. Further, each wireless routers has a cache data store to cache content data requested by the user, or any other information sent to the wireless router from another wireless router.

Abstract: A system for transmitting data via a core portion of a computer network to a mobile device is described. The network includes a plurality of access points wherein each access point includes a memory where data for onward transmission to the mobile device may be cached and is operable to communicate with the mobile device over a short-range wireless connection, when the mobile device is in range thereof, and with the core portion of the network over a backhaul connection on a substantially continuous basis.

Abstract: A light-weight relay selection mechanism selects the most likely “best” relay station for data transmission from a given source station S to an access point AP using the Initial Receive Signal Strength (IRSS) to infer the future data transmission rate. In the initialization stage, the access point AP constructs a table mapping the IRSSs of receivers to eight levels of transmission rate. In the relay selection stage, relay candidates R measure the IRSSs for the source station S and access point AP and report their IRSS levels to the AP. A contention-based mechanism is dedicated to enabling the candidate with higher IRSS levels to report earlier. With this mechanism, the access point AP is able to select the station with the highest estimated data transmission rate.

Abstract: Authenticated propagation of adverts to multiple mobile recipient devices, each having both wireless and mobile telephony capability, employs message generation platforms each having a content creation engine, a metadata inserter and a signature generator, for the wireless broadcast of the generated messages. A client application on each recipient device controls viewing of the message, with authentication being provided through mobile telephony communication with a trusted authority which is in turn in secure communication with the message generation platform to hold signature information. According to an incentive policy, a device may wirelessly re-broadcast any message.

Abstract: Wireless routers having an ADSL or cable connection to content data available via the Internet, a wired connection for connecting local clients in a LAN and a wireless controller for connecting to other wireless routers and clients in a wireless local area networks (WLANs). The WLANs often intersect and therefore it is possible to communicate between wireless routers in order to exchange content data via the wireless LAN in addition to the ADSL or cable connection. Further, each wireless routers has a cache data store to cache content data requested by the user, or any other information sent to the wireless router from another wireless router.

Abstract: A system for transmitting data via a core portion of a computer network to a mobile device is described. The network includes a plurality of access points wherein each access point includes a memory where data for onward transmission to the mobile device may be cached and is operable to communicate with the mobile device over a short-range wireless connection, when the mobile device is in range thereof, and with the core portion of the network over a backhaul connection on a substantially continuous basis.

Abstract: A light-weight relay selection mechanism for selecting the most-likely “best” relay station for data transmission from a given source station S to an access point AP uses the Initial Receive Signal Strength (IRSS) to infer the future data transmission rate. In the initialisation stage, the access point AP constructs a table mapping the IRSSs of receivers to eight levels of transmission rate. In the relay selection stage, relay candidates R measure the IRSSs for the source station S and access point AP and report their IRSS levels to the AP. A contention-based mechanism is dedicated to enabling the candidates with higher IRSS levels to report earlier. With this mechanism, the access point AP is able to select the station with the highest estimated data transmission rate.

Abstract: Authenticated propagation of adverts to multiple mobile recipient devices, each having both wireless and mobile telephony capability, employs message generation platforms each having a content creation engine, a metadata inserter and a signature generator, for the wireless broadcast of the generated messages. A client application on each recipient device controls viewing of the message, with authentication being provided through mobile telephony communication with a trusted authority which is in turn in secure communication with the message generation platform to hold signature information. According to an incentive policy, a device may wirelessly re-broadcast any message.

Abstract: An 802.11 wireless network is disclosed which operates as an asymmetric two-hop cellular network. Relaying from one wireless node (18) via another wireless node (14) to an access point is enabled. The relays are limited so that a maximum of two-hops are used in uplink communications between the nodes (14, 16, 18, 19) and the access point (12). Each node requiring a relay service advertises this to nodes close to it, other nodes respond if prepared to offer a relay service. The access point (12) receives those responses which are useful and selects a relay node (14) on the basis of data it holds about its links to the wireless devices (14, 16, 18, 19) in the network.

Abstract: A Component-based Software Distribution Channel allows Component Service Providers (10) to advertise component services via a Service Directory (12) to service developers. The component services are advertised in a format which encapsulates a legally binding contract which must be accepted before the components may be incorporated into a client service. The service developer may combine together a number of different component services to create a combined client service. That service may be announced in a Session Directory (16) in an encapsulated format which incorporates a legally binding agreement which must be accepted by a client before the resultant session may be accessed.