Abstract: A teleservice server in a wireless network provides an interface between a mobile station and an Internet protocol network thereby facilitating data transfers between these elements. The server translates datagrams from the IP network into a format suitable for transmission over a wireless network that provides voice communication capabilities. The server also translates data messages received from the mobile station over the wireless network into a format suitable for appropriate transmission in the IP network.

Abstract: According to an aspect of the present invention one or more radio units of a wireless device are used to measure or detect clues about the radio propagation environment and type of space that surrounds a wireless device. From the measurements, the wireless device may determine the type of location that it is located within, whether that is simply a determination between inside and outside or a more complex determination of the type of building or space that the wireless device is located within. In either case, this determination can be used to automatically change/adjust the radio system operation parameters the wireless device operates in accordance with. With the type of location determined, a wireless device may then automatically select the appropriate radio system operation parameters for the type of location that it is in and the corresponding regulations that apply.

Abstract: A round of ammunition for firing from a gun having a rifled barrel, especially a small arms weapon. The projectile (1) forming a part of the round is of steel or other material having a Vickers Hardness value not less than 550, and has a coating (13) of copper or copper alloy. The projectile has a forward body portion (9) which has a diameter similar to that of the lands of the rifling, and a rearward body portion (3) having a diameter which is similar to the diameter defined by the roots of the rifling grooves. The coating (13) is of a thickness not less than the depth of the said rifling grooves, so that the rifling engraves the coating but does not significantly engrave the underlying steel or other hard material. The advantages associated with a hard projectile material are thus obtained without substantially increasing barrel wear.

Abstract: A round of ammunition for firing from a gun having a rifled barrel, especially a small arms weapon. The projectile (1) forming a part of the round is of steel or other material having a Vickers Hardness value not less than 550, and has a coating (13) of copper or copper alloy. The projectile has a forward body portion (9) which has a diameter similar to that of the lands of the rifling, and a rearward body portion (3) having a diameter which is similar to the diameter defined by the roots of the rifling grooves. The coating (13) is of a thickness not less than the depth of the said rifling grooves, so that the rifling engraves the coating but does not significantly engrave the underlying steel or other hard material. The advantages associated with a hard projectile material are thus obtained without substantially increasing barrel wear.

Abstract: A teleservice server in a wireless network provides an interface between a mobile station and an Internet protocol network thereby facilitating data transfers between these elements. The server translates datagrams from the IP network into a format suitable for transmission over a wireless network that provides voice communication capabilities. The server also translates data messages received from the mobile station over the wireless network into a format suitable for appropriate transmission in the IP network.

Abstract: According to an aspect of the present invention one or more radio units of a wireless device are used to measure or detect clues about the radio propagation environment and type of space that surrounds a wireless device. From the measurements, the wireless device may determine the type of location that it is located within, whether that is simply a determination between inside and outside or a more complex determination of the type of building or space that the wireless device is located within. In either case, this determination can be used to automatically change/adjust the radio system operation parameters the wireless device operates in accordance with. With the type of location determined, a wireless device may then automatically select the appropriate radio system operation parameters for the type of location that it is in and the corresponding regulations that apply.

Abstract: Systems and methods of operating an array antenna are disclosed. The array antenna has configurable beamwidth and is operable in any of multiple operating modes associated with respective beamwidths. For example, operating an array antenna at a wide beamwidth for detecting incoming communication signals reduces scan times associated with individually scanning directional antennas. Switching to narrow beamwidth operation for subsequent exchange of communication signals provides higher antenna gain and reduces interference. Steering of beams and nulls in a gain pattern of an array antenna further reduces interference on wireless communication links. The benefits of each beamwidth are thereby exploited for particular functions, while many of the drawbacks of each beamwidth for other functions are avoided.

Abstract: A method and apparatus provide location based filtering for searching for information in response to a request from a mobile handset. The handset detects location information from the mobile network with which the handset is in communication and forwards the location information as part of an information request to an information database. The location information is used as a filter for selecting a response to the information request.

Abstract: A teleservice server in a wireless network provides an interface between a mobile station and an Internet protocol network thereby facilitating data transfers between these elements. The server translates datagrams from the IP network into a format suitable for transmission over a wireless network that provides voice communication capabilities. The server also translates data messages received from the mobile station over the wireless network into a format suitable for appropriate transmission in the IP network.

Abstract: Methods and systems to communicate data to a mobile station. A request to transfer data from an internet Protocol (IP) network to a mobile station ca be received. Whether the mobile station is registered in a first network of a plurality of networks can be determined. The plurality of networks can include the first network operating under a first protocol and a second network operating under a second protocol, and the second protocol can be different than the first protocol. If the mobile station is registered in the first network, the data can be adapted to be transferred via first network and transferred to the mobile station via the first network.

Abstract: The present invention relates to antennas. One of the problems which arises during operation of antenna arrangements is that spurious signals are emitted from mounting apertures and other surface features associated with a rearwardly facing ground plane, for instance, mounting bolts which couple some of the radiated energy, and through coaxial cable connector ports. The effect of all these unwanted signals is that they will couple with other radiating elements to form intermodulation products. In receive mode these intermodulation signals can severely impair the received signal quality. The present invention provides an antenna assembly comprising a support frame 52 and individually mounted layered antennas 56, wherein an insulator-conductor sheet such as a metallized plastics film 54 is interposed between the antennas and the support frame. There is also provided a method of manufacturing such a layered antenna and of receiving and transmitting signals by means of a layered antenna of this construction.

Abstract: A method provides for the detection of the geographic location of a mobile station within a mobile network. The mobile station detects signal characteristics for signals generated by neighboring cells to create a report of signal characteristics corresponding to the location at which the mobile station resides. This report is then compared against the database of signal signatures identifying geographic locations within the cell in which the mobile station is known to be positioned. The signal signatures are then used to detect either an exact match or an approximate match to give position information of the mobile station within the cell.

Abstract: The present invention relates to antennas. One of the problems which arises during the operation of a linear array antenna with electrical downtilt is that cross-polar radiation currents are generated. These cross-polar radiation currents, if at the same frequency as the operating band of the antenna, interfere with the required gain of the antenna. The present invention provides a solution to cross-polar radiation currents with an antenna assembly comprising first and second apertured ground planes with an antenna probe feed network printed upon a dielectric substrate supported therebetween, the array of radiating elements having different phase input feeds, wherein an outwardly extending ground plane flange extends from one of the apertured ground planes. There is also provided a method of receiving and transmitting signals by means of a layered antenna of this construction.

Abstract: In accordance with the present invention, there is provided a linear antenna array comprising a number of antenna elements and a feed network, wherein the feed network is operable to apply the cumulative effect of a progressive phase shift across the antenna elements of the array and a stepped complex operator shift to selected groups of antenna elements of the array, whereby a down tilted and null-free coverage by a resulting radiation pattern can thereby be provided. The complex operator can be phase, amplitude or a combination of both. The antenna array can be a layered antenna and the phase shifts in the feed network can be provided by differing length transmission paths, whilst any amplitude shift can be provided by unequal power dividers. In order to provide no down tilt and just null fill-in, then the progressive phase shift can be specified to be zero.

Abstract: A coaxial connector arrangement for transferring high frequency microwave signals between a coaxial cable and a further device is disclosed. In many present systems, the connector arrangement whereby microwave signals are passed from a coaxial cable to a device or the like at high frequencies has a tendency of radiating. Not only do the radiative emissions lose power, but this radiation can combine with the desired signals to form intermodulation products which further lose signal power and also distort the signal. The mating faces of the connector provide a malleable raised line portion which is disposed about the central conductor whereby a continuous line contact is defined on the mating components about the inner conductor, thereby preventing emission of high frequency signals which may interact with the intended signals.