Abstract: The invention relates to a method for the automated analysis and appraisal of a mobile radio telephone system (1). Said method scans calls that are executed as part of a test phase, in accordance with internal and external system parameter values which flag error conditions (e.g. handover errors) or system performance deficiencies (e.g. poor voice quality during transmission). In a subsequent step, the parameters are evaluated in several modules (12.1–12.3) according to selectable grouping criteria, whereby for each module a multitude of relevant events or event sequences are examined and a module quality value (17.1–17.3) is determined with regard to a specific appraisal criterion. The system quality value (20) of the entire system is calculated as a weighted sum of the quality values from the individual modules and can be displayed graphically as a comparison of all groups, with regard to the chosen grouping criterion.

Abstract: Techniques to avoid interference with a frequency hopping signal that are of a periodic or quasi-periodic nature that may operate in the same frequency band and proximity with other devices. For example, the frequency hopping signals may be transmitted by Bluetooth devices operating in the same frequency band as IEEE 802.11 WLAN devices. When a frequency hopping interfering signal is detected, sufficient knowledge of the frequency hopping sequence is derived without obtaining state of a frequency hop sequence from information carried in the frequency hopping signal. This knowledge is used to predict or determine when future transmissions of the frequency hopping signal will be present in a particular frequency channel of concern.

Abstract: A high-frequency module includes first to fifth terminals, a high-pass filter, a high-frequency switch, a transmitter-side balun, and a receiver-side balun. The high-pass filter is connected to the high-frequency switch, and the high-frequency switch is also connected to the transmitter-side balun and to the receiver-side balun. The first terminal is connected to an antenna, the second and third terminals are connected to a transmitter circuit, and the fourth and fifth terminals are connected to a receiver circuit.

Abstract: A signalling system includes a plurality of active transponders (10), an interrogation station (12) and a source (14) of switching signals. Each of the transponders has a microcontroller (20), a radio transceiver (34) for responding to radio interrogation signals from the interrogation station, the radio transceiver being coupled to the controller by way of switching means (36) which switches the transceiver on or off whilst leaving the microcontroller active, and a passive receiver (38) for receiving switching signals from the source of switching signals which signals are used by the microcontroller for switching-on or -off the transceiver. Transducers (26, 28, 30) may be coupled to the microcontroller for monitoring environmental features, such as ambient temperature and humidity, and data relating to the features is stored in a RAM (32) in readiness to be relayed to storage means (56) in the interrogation station (12) as and when required.

Abstract: Describe herein is an apparatus for inclusion in a station of a wireless network, and a method implemented in a station of a wireless network. The method includes wirelessly receiving data via each of a plurality of antennas, the data corresponding to a packet of information transmitted from a remote station, sampling the received data corresponding to the received packet to form data samples for each of the antennas, and determining a measure of signal quality from samples of the received data for each of the antennas. The method further includes selecting one of the plurality of receive antennas as the antenna for receiving from the remote station according to the determined measure of signal quality.

Abstract: The present invention relates to a mobile agent system (1) for a communication unit (5, 6, 7) of a communication system, with at least one mobile agent (3) comprising an allocated agent policy (8), in which migration parameters of the respective mobile agent (3) are defined, migration control means (16) for controlling the migration behavior of a mobile agent (3) in the communication system on the basis of a current migration policy of the mobile agent (3) and current parameters of the communication system. The present invention further relates to a method for controlling such a mobile agent system (1) and allows a flexible way of controlling the migration behavior of mobile agents (3) depending on system parameters.

Abstract: A method and system for dynamic soft handoff resource allocation in a wireless communications network includes determining a wireless path characteristic individually for each path of a macro diversity connection between a mobile device and a plurality of wireless sites. Wireless resources are allocated for the macro diversity connection between the mobile device and the wireless sites based on the wireless path characteristic. The wireless path characteristic includes a location-based characteristic, a congestion-based characteristic, a subscriber-based characteristic and/or a performance-based characteristic.

Abstract: In a sectored cell of a cellular communication network, channels are dynamically reassigned from a first sector in the cell to a second sector in the same cell when the loading in the first sector reaches a predetermined threshold. The channels allocated to the cell are further subdivided into subgroups and assigned initially to respective sectors in the cell. During normal operation, the channels in each sector are allocated to users in that sector in the usual manner. When the number of channels allocated in a first sector of the cell reaches a predetermined threshold, the base station controller polls the remaining sectors for unused channels. If an unused channel is found, that channel may be reassigned to the first sector. In one embodiment, the base station controller polls the controller in the nearest co-channel cells before reassigning the channel to prevent co-channel interference.

Abstract: A propagation relay, attached to an enclosure, receives a wireless signal. The signal is sent from a base station over a downlink frequency. The propagation relay converts the downlink signal and transmits it wirelessly, using a different frequency, to mobile station interface ports located within the enclosure. The mobile station interface ports convert the signal back into one at the downlink frequency and send it, via a wireless link, to mobile stations inside the enclosure. Communication from the mobile stations to the base station occurs in the same manner.

Abstract: In a method for providing customized services to a person having a disability, a first message is transmitted by a wireless client device and is received by a server device. The client device is operable by the person with the disability. The first message is transmitted by using a close-range, standard-protocol radio signal. The server device sends a first response message to the client device by using the protocol. The first response identifies a contact phone number. The person with disability dials the contact phone number, thereby generating a second message that uniquely identifies the person. The server device receives the second message on the wireless carrier network. The server device performs a search on a database for a record matching the person. On finding a match, a second response is sent to the client device describing a list of customized services configured for the person with disabilities.

Abstract: Disclosed embodiments include a system and method for adapting a wireless device, such as a Bluetooth-enabled mobile device or other Bluetooth-enabled device to a hands-free car kit or similar system. The adapter module is physically configured so that it can be inserted directly into the cradle in place of the phone. Once inserted into the cradle, the adapter module makes electrical contact with the connector in the cradle with a matching connector on one side of the adapter module. The mated connectors provide power to the adapter module and bi-directional communications between the adapter module and the hands-free car kit. The adapter module includes circuitry for communicating with the Bluetooth-enabled mobile device and the hands-free car kit in order to exchange communications signals between the Bluetooth-enabled mobile device and the hands-free car kit.

Abstract: A method of providing wireless communication to a personal communication device in an rf restricted environment. The personal communication device has a radiative antenna. The method comprising: providing a personal communication device with a radiative antenna; providing a first coupler antenna within the rf restricted environment; connecting the first coupler antenna to a second antenna mounted on the outside of the rf restricted environment through a computer controlled circuit arranged therebetween; wirelessly connecting the first coupler antenna with the radiative antenna of the personal communication device within the rf restricted environment; monitoring communications of the personal communication device at any point between the first coupler antenna and the second antenna; and billing for use of the personal communication device within the rf restricted environment. The personal communication device may be a cellular telephone. The personal communication device may be a laptop computer.

Abstract: A novel integrated circuit incorporating a transmit/receive antenna switch capable of being integrated using silicon based RF CMOS semiconductor processes and a power amplifier on the same substrate. The switch circuit is constructed whereby the substrate (i.e. bulk) terminals of the FETs are left floating thus improving the isolation and reducing the insertion loss of the switch. Floating the substrate of the transistors eliminates most of the losses caused by leakage paths through parasitic capacitances internal to the transistor thus improving the isolation and reducing the insertion loss of the switch. Alternatively, the substrate can be connected to the source or to ground via a resistor of sufficiently high value to effectively float the substrate.

Abstract: In the context of a radio communications system that includes a core network coupled to a radio access network (RAN) and a plurality of mobile terminals, a connection may be established between the core network and one of the plurality of mobile terminals through the radio access network. A temporary RAN identifier is associated with the mobile terminal for the established connection. The temporary RAN identifier is used to assist in the transfer of information pertaining to the established connection or to the establishment of that connection through the radio access network. The radio access network includes a first RAN node associated with a first geographical coverage area and a second RAN node associated with a second geographical coverage area. When the mobile terminal moves from the first coverage area to the second coverage area, the connection is re-established through the RAN by way of the first and second RAN nodes using the temporary RAN identifier.

Abstract: A method of adapting the Orthogonal Channel Noise Source (OCNS) for optimization and acceptance testing of a CDMA based wireless network under load conditions is disclosed. According to an embodiment of the invention, a test loading level (for example, 80%) and performance requirements are established for a plurality of Base-station Transceiver Subsystems (BTS). The subsystems then transmit any required overhead power plus sufficient OCNS power such that the total output level of the BTS power amplifier is at the selected test level (e.g. 80%). As a mobile unit moves within range of a BTS and requests access, the unit's power requirement is determined based on the requested data rate. The OCNS power level of the new BTS is then adjusted or lowered by an amount equal to the detected power requirements to allow access to the mobile unit. The BTS then establishes a communication link with the mobile unit.

Abstract: Systems and methods for optimizing the efficiency of each of a plurality of power amplifiers that amplify a corresponding one of a plurality of radio frequency signals for transmission by a corresponding one of a plurality of antennas. Using transmit beamforming, the power of each amplified signal output by the power amplifiers may not be the same for all the power amplifiers, and may vary with changes in the communication channel between the transmitting device and receiving device. Each of the plurality of power amplifiers is controlled to operate with one or more operating parameters that optimize the efficiency for an output power level of corresponding ones of the radio frequency signals. By adjusting one or more operating parameters of each power amplifier according to changing requirements (e.g., the destination device and channel conditions), the efficiency of each power amplifier can be optimized.

Abstract: Power levels for transmitting Bluetooth paging signals are optimized by applying mapping rules dictating different power levels for different signal quality characteristics measured during an earlier, pre-paging inquiry process. A subject Bluetooth device initially receives responses to universally addressed, blind inquiry signals previously broadcast by the subject Bluetooth device. In response, the subject Bluetooth device measures signal quality characteristics of each device's response. When a Bluetooth device to be paged is identified, the subject Bluetooth device applies the mapping rules to the measured signal quality characteristics for the identified device to select an appropriate power level for use in paging that Bluetooth device.

Abstract: A method for generating channel quality feedback information in terms of quantized eigenvectors calculated from an eigenvalue decomposition that uses a channel matrix and an eigenvalue matrix to generate quantized and bounded eigenvectors. The channel correlation matrix and the eigenvalue matrix are obtained from a channel matrix formed from channel measurements of various signal parameters of signals transmitted over the communication channel. The eigenvalue decomposition uses the elements of the channel correlation matrix, the elements of the eigenvalue matrix and conditional relationships between elements of the channel correlation matrix to calculate the quantized and bounded eigenvectors. Because the elements of the quantized bounded eigenvectors can be expressed in terms of each other, not all elements of the quantized bounded vectors need be transmitted over the communication channel resulting in efficient use of the communication channel.

Abstract: A self configuring multiple element portable electronic device (100) and method is provided. The device comprises at least a first electronic element (104) and a second electronic element (106) and a joint (112) connecting the first electronic element and the second electronic element, with the joint allowing movement in more than one plane of the first electronic element in relation to the second electronic element, wherein the self configuring multiple element portable electronic device is capable of self configuring an operational mode based on a relative position of the first electronic element with respect to the second electronic element. The first housing has a first retaining member (1406) which is engageable to a second retaining member (1408) of the second housing. The method comprises the steps of detecting a relative position of the first electronic element relative to the second electronic element, and selecting an operational mode of the device based on the relative position.

Abstract: A method for locating a user in a wireless network is disclosed. A mobile computer seeking to determine its location within a building detects the signal strength of one or more wireless base stations placed at known locations throughout the building. The mobile computer uses this measured signal strength to determine its location via a signal-strength-to-location table look-up. A table of known locations within the building and the base station signal strength at those locations is searched to find the most similar stored signal strength to the signal strength detected. The location corresponding to the most similar stored signal strength is determined to be the current location of the mobile computer. Alternatively, a number of signal strengths from the table can be used and the corresponding locations can be spatially averaged to determine the location of the mobile computer.