Abstract: The present invention provides a method, apparatus and system for handling unreliable feedback information in a wireless network. The present invention adjusts one or more communications (202) with a receiving unit (272) in a wireless communication network by receiving feedback information (302) relating to the receiving unit (102), determining a feedback information offset for the receiving unit (272), and adjusting the one or more communications (202) with the receiving unit (272) based on the feedback information and the feedback information offset (306).

Abstract: A method of controlling packet flow through a network node in a packet-switched communication network. At least three measurements of instantaneous queue size are obtaining and utilized to determine a traffic pattern's relative shape, absolute level, and absolute context over a more extended time period. An initial estimate of a future level of congestion is made from the shape, level, and context of the traffic pattern, and is then utilized to establish initial settings for traffic control parameters. An auto-tuning process further optimizes the settings by periodically re-determining the shape, level, and context of the traffic pattern based on updated measurements of instantaneous queue size. Potential changes to the control parameters are tested at a dynamically determined interval, and are accepted only if the changes result in improvements in network performance.

Abstract: A method of authenticating a message (111) received via a transmission channel (108) using a Message Authentication Code (MAC). The message comprises a message body (114) and a tag (116) and the method comprises the steps of generating a second tag (115) according to a MAC function (112) on the basis of the received message body and a secret key (113), calculating a distance (117) between the received tag and generated second tag, and comparing (118) the calculated distance with a predetermined threshold value.

Abstract: A method of negotiating a call capability between signalling points in a telecommunications system. The method comprises sending a capability preference or prioritised list of preferences from an originating signalling point to a terminating signalling point or signalling transfer point, at the Call Control level. A capability acceptance is returned from the terminating signalling point or signalling transfer point to the originating signalling point at the Call Control level, if the terminating signalling point or signalling transfer point accepts a preference sent by the originating signalling point.

Abstract: A method of and apparatus for single antenna interference rejection (SAIR) relaxation. Interference in a received signal is reduced by performing synchronization and whitening of the received signal. The synchronization and whitening includes performing the following steps at least one time: 1) performing a synchronization and vector-noise-correlation estimation of an input signal to yield an interference model; and 2) performing a spatio-temporal whitening operation using the interference model and the input signal to yield an updated received signal. The input signal is the received signal when the step of performing the synchronization and vector-noise-correlation estimation is performed a first time. The input signal is the updated received signal when the step of performing the synchronization and vector-noise-correlation estimation is performed following the first time.

Abstract: A mobile multimedia system for a mobile terminal for a wireless telecommunications system and a method for enabling multimedia applications in a mobile terminal. The system includes a mobile multimedia engine having a software services component and a hardware component associated with and controlled by said software services component, and an interface component having at least one interface for providing access to the mobile multimedia engine. The system further includes multimedia application software loaded, installed and run in said mobile multimedia engine via the at least one interface in said interface component.

Abstract: A method of providing secure communications between a first and a second communications unit comprising a key exchange between the communications units resulting in a shared secret key, the key exchange including a user interaction. The method includes the steps of providing, at least partly by means of a user interaction, a passcode to the first and second communications units; generating a first contribution to the shared secret key by the first communications unit and a second contribution to the shared secret key by the second communications unit, and transmitting each generated contribution to the corresponding other communications unit; authenticating the transmitted first and second contributions by the corresponding receiving communications unit based on at least the passcode; and establishing said shared secret key by each of the communications units from at least the corresponding received first or second contribution, only if the corresponding received contribution is authenticated successfully.

Abstract: The combination of narrowband applications with broadband transport may be enabled with a communications architecture, in which one or more Media Gateways (MGs) that include broadband switching fabric are controlled by a Media Gateway Controller (MGC) that includes switching intelligence and narrowband switching fabric. A new data structure is provided in the MGC to identify bandwidth allocation on all traffic trunks interconnecting MGs controlled by the MGC. The new data structure can further maintain quality data representing the quality of packet transmissions in the broadband network data. The new data structure enables the MGC to monitor congestion in the broadband network and to allocate bandwidth more efficiently.

Abstract: A telecommunications system for improving quality of service (QoS) to users via the implementation of an extended outer loop power control algorithm. A radio resource manager (RRM) operates to determine the number of channels allotted to users within a network at a certain time. The RRM implements the extended outer loop power control algorithm for each allotted channel, thus determining SIR reference values for each allotted channel the RRM ensures that the SIR reference value for any channel does not fall bellow a predetermined minimum value. The SIR reference value to be used for all channels in use is determined as the highest of all the calculated SIR reference values. The extended outer loop power control algorithm can be implemented at a mobile station level, base station level or radio network controller level.

Abstract: A system for estimating the modulation index and frequency offset of a CPM signal. An estimator filters the received signal and utilizes a training sequence to determine the modulation index and frequency offset of the CPM signal. The estimator can also include a post-processing step to eliminate all or part of a bias that might be created by the estimator.

Abstract: An amplifier circuit comprising a transconductor device connected to a phase shifter section. The phase shifter section has an adjustable phase shift and an impedance at least partially dependent of the frequency of an input signal. In use, the adjustable phase shift is adjusted to have substantially the opposite value of a phase shift of the transconductor device. In an embodiment, the phase shifter section comprises a capacitor device and an adjustable resistor device which comprises an amplifier device with an input contact for receiving a resistance control signal; a first output contact connected to the capacitor devices and a second output contact connected to the transconductor device. The amplifier circuit further comprises a control device for providing said resistance control signal to the input contact of the amplifier device.

Abstract: A method of controlling output power in a power amplifier having a driver stage and an output stage. The driver current is measured and the output stage biased in dependence upon the measured driver current.

Abstract: The uplink transmission timing from a mobile communications device is defined with reference to the downlink reception timing of signals from a particular reference cell. When that reference cell is removed from the active set, there is defined a virtual reference cell, the timing of which is defined with reference to one or more of the cells remaining in the active set, such that the timing of this new virtual reference cell corresponds to the timing of the previous reference cell. The timing of the uplink transmission from the user equipment are then defined with reference to the new virtual reference cell, in the conventional way. This has the advantage that, following a soft handover, it is not necessary to adjust the timing of uplink transmissions from the user equipment.

Abstract: What is disclosed is a secure mailbox having at least a main compartment with a plurality of sides forming the enclosed main compartment, a front mailbox door hingedly coupled to the remainder of the main compartment, a locking and unlocking mechanism being adapted to lock the front mailbox door to the main compartment and an unlocking activation mechanism coupled to the locking and unlocking mechanism comprised of either a card key system, a FOB system or an RFID system.

Abstract: A method and apparatus for phase-domain semi-coherent demodulator including a receiver for receiving at least a phase component of an input signal. The phase domain semi-coherent demodulator may include a decision unit for forming a decision based on a delayed reference signal and the phase component of the input signal. In addition the phase domain semi-coherent demodulator may include a phase sum adder for subtracting the decision from the phase component of the input signal to form a rotated input phase, a second phase sum adder for subtracting the delayed reference signal from the rotated input phase to form a resulting signal, and a scaler for scaling the resulting signal to form an update signal. A third phase sum adder adds the update signal to the delayed reference signal to form a reference signal.

Abstract: Methods and apparatus are provided for establishing a connection between a scanner device and a pager device over a sequence of hop channels. The scanner device is repetitively activated and a hop channel is selected from the sequence of hop channels as a function of a present phase. A determination is made as to whether the selected hop channel is a forbidden hop channel. A substitute hop channel is selected from the sequence of hop channels as the selected hop channel if the selected hop channel is a forbidden hop channel. The selected hop channel is monitored for receipt of a paging message during the present phase.

Abstract: There is described a mobile cellular telephone system, in which channels can be reserved dynamically, in each cell of the system. A locating area can be defined for a specific class of customer, and a channel can be reserved for that customer in each cell covered by the locating area, for as long as the customer remains active in that area. For example the locating area can be a Virtual Mobile Locating Area (VMLA).

Abstract: A method for migrating between first and second service enablers in an open service architecture includes registering a second service enabler within open service architecture framework. The properties of the registered second service enabler are compared with the properties of at least one of first service enablers which determines if the second service is backward compatible to the first service enabler. Information concerning whether the second service enabler is backward compatible with the first service enabler is then forwarded to an application using the first service. Additional information that can be sent to the application in the same message includes, e.g., the fact that the second service enabler outdates a first one, a migration strategy and references to interfaces on the second service enabler that the application can already start using.

Abstract: A smart card and a smart card and security function system for a mobile terminal for a wireless telecommunications system. The smart card includes a software services component in which software is organized in at least one functional software unit and in a plurality of software layers arranged in order from software layers providing higher level services to software layers providing lower level services, and at least one software module in each software layer. The smart card further includes means for providing access to information and services provided by the smart card.

Abstract: A portable telecommunication apparatus has a user interface, a programmable controller, a memory coupled to the controller, and an information access program, such as a WAP browser, which is stored in the memory and is executable by the controller. The information access program provides access for a user to a global information network, such as Internet, through the user interface and a first wireless communication link. The apparatus also has an external device interface for connecting an external device to the portable telecommunication apparatus over a second communication link. The information access program allows the user to control the external device through the user interface, the external device interface and the second communication link.