Abstract: An arrangement, method, and access point (AP) in a wireless telecommunication network for providing a user terminal (UT) with access to the network utilizing a contention-based, multi-access uplink channel. The AP includes Nrx receive antennas, where Nrx>1, for receiving simultaneous uplink transmissions from a number of UTs, wherein the number of UTs transmitting on a given slot is less than or equal to Nrx. The AP sends power-control commands to the UTs to control the transmit power of each of the UTs to provide received signals of equal average power at the AP. The AP also instructs each UT to select its transmission data rate based on a noise level at the AP, so as to achieve a desired level of reliability. An MMSE receiver without successive interference cancellation receives the packets transmitted from the UTs and separately demodulates and decodes the packets received from each user terminal.

Abstract: A transceiver for transmitting and receiving signals includes a transmitter operative to up-convert baseband signals from a baseband frequency into RF signals at a radio frequency (RF) frequency and output the RF signals, a receiver operative to receive RF signals and down-convert the RF signals into baseband signals having the baseband frequency, and a plurality of calibration paths coupling the transmitter to the receiver. Any of the calibration paths can be selected to be active when calibrating components of the transceiver. Tunable components can use calibration information to optimize transceiver performance.

Abstract: In a radio system for transmitting information channels A1, A2, A3 to radio receivers, the information channels A1, A2, A3 are transmitted in parallel over a number of data channels, each using different transmission standards. A radio receiver selects a transmission standard based on the type of its energy supply.

Abstract: The present invention relates to a communications apparatus and method, a storage medium and a program that make it possible for the user to select a device to be made a communications partner more quickly and reliably. The searcher device 21 performs a search so as to detect only one device. If the response message from the searchee device 32 is obtained by the searcher device 21, on the display section of the searcher device 21 is displayed a selection screen for selecting whether or not to make the searchee device 32 a communications partner. If the searchee device 32 is not selected as a communications partner, the searcher device 21 performs another search so as to detect two devices.

Abstract: According to one embodiment, an electronic apparatus comprises a wireless communication device configured to conduct wireless communication with an external apparatus, a switch connected to a radio frequency circuit of the wireless communication device, and configured to couple an RF signal input and output port of the radio frequency circuit to one of a wireless communication antenna and a cable connected to the external apparatus, and a control module configured to control the switch to switch a mode of conducting communication with the external apparatus between a wireless communication mode and a wired communication mode, a wireless signal being transmitted and received between the external apparatus and the wireless communication device through the wireless communication antenna in the wireless communication mode, the wireless signal being transmitted and received between the external apparatus and the wireless communication device through the cable in the wired communication mode.

Abstract: An apparatus and method provides for controlling communications from multiple base stations to a mobile station in a communication system. A mobile station transmitter transmits from the mobile station channel quality indicator data of a first base station. The data is covered with Walsh code assigned to the first base station. A base station receiver receives the transmission of the channel quality indicator data of the first base station. The mobile station transmitter punctures the transmission of the channel quality indicator data of the first base station with null channel quality indicator data, and covers the null channel quality data with Walsh code assigned to a second base station of the multiple base stations to indicate a desire to switch a source of transmission of traffic data from the first base station to the second base station.

Abstract: Subject to user's setting in PoC group communication, the user address of that user is set to non notification against other users. In case of starting PoC group communication, a PoC subscriber selects non notification subjects and transmits a PoC session commencement request. At that time, the caller sets his own address and/or address/addresses of all or a part of users to non notification. On a user designated as a non notification subject due to the caller's setting, PoC terminal apparatuses in receipt of a PoC session commencement request or PoC communication service controlling apparatuses undergo non notification setting processing. On a called party not selected as non notification subject users, if he/she sets his/her own user address to non notification in advance, likewise non notification processing is implemented. Even after a PoC session is established, each user can set his/her own user address to non notification and non notification service complying with user's intention is providable.

Abstract: A method of sampling a frequency difference in an integrated circuit is disclosed. The method comprises the steps of receiving a clock signal in a first clock domain; comparing a count of the clock signal in the first clock domain to a predetermined value N; converting the result of the comparison to a second clock domain; and generating an error signal representing the difference between the count of the first clock signal and the count of a second clock signal in the second clock domain. A circuit for sampling a frequency difference in an integrated circuit is also disclosed.

Abstract: A cellular communications system comprising a space based system comprising a first set of cells, and a ground based system comprising a second set of cells. The space and ground systems can optionally function substantially autonomously, with each using spectrum from at least one predetermined frequency band.

Abstract: A handheld communication device capable of transmitting and receiving at least voice and text communication. The device has a body assembly including a front face arranged to be directed toward an operator of the device when held in a text communicating orientation. A display screen and a text-input keyboard are included and are each exposed at the front face of the body assembly. The keyboard has a plurality of keys that include a set of alphabetic keys with which either QWERTY-, QWERTZ- AZERTY- or Dvorak-arranged alphabetic characters are associated. An integrated camera assembly is also included that is configured for taking photographs and the communication device enabled to wirelessly communicate photographs taken with the camera assembly to a remote receiver. The camera assembly includes a photo-initiating actuator having an actuated position and an unactuated position and at least one of a selective enablement device or a selective disablement device.

Abstract: A communication module capable of simultaneously providing communication and positioning information is provided. The communication module includes a processor with an integrated positioning receiver. The processor transmits and receives communication information, such as interconnect voice, dispatch voice, or data, using a first transceiver. The integrated positioning receiver is coupled to a second transceiver to transmit positioning information.

Abstract: Disclosed is an enhanced system and method for bridging calls across telecommunications networks, including an illustrative application of the invention as it relates to international roaming among prepaid wireless subscribers. For instance, whenever wireless subscribers roam internationally they may invoke the system by keying in an Unstructured Supplementary Service Data (USSD) short code followed by the number to be dialed. Said subscriber's prepaid account is then decremented in real-time (until such account is fully depleted). A key feature of the disclosure generally is the bridging of the call legs between the wireless subscriber initiating the telephone communication and that of the receiving party through a series of general purpose databases and computers without requiring modifications to existing core network or handset infrastructure.

Abstract: Techniques to quickly adjust an SIR target toward a final value needed to achieve a specified target BLER for a data transmission. The outer loop may be implemented with multiple modes. The SIR target may be maintained fixed in a hold mode, adjusted in large down steps to speed up convergence in an acquisition mode, and adjusted by a small down step and a large up step for good and erased blocks, respectively, in a tracking mode. Various schemes may be used to adjust the SIR target by larger down steps in the acquisition mode. These schemes may be used even if data is transmitted intermittently, the target BLER is set to a low value, and/or one or multiple transport channels are used for data transmission. The SIR target may be boosted by a particular amount upon transitioning from the acquisition mode to the tracking mode.

Abstract: The jitter reduction circuit to reduce phase noise in a pulse train, comprises: —a resettable integrator (70) to integrate the pulse train, —a comparator (72) to compare the integrated pulse train with a reference level and to generate a modified pulse train with reduced phase noise, —a crossing time interval detector (94) configured to determine a discrete time interval during which the integrated pulse train crosses the reference level and to reset the integrator between two discrete time intervals determined consecutively.

Abstract: A method includes controlling a mixer gain to provide a range of selected power output levels from the mixer using a first control scheme for a low portion of the range and using a second control scheme for a high portion of the range. Using the selected mixer gain, incoming baseband signals may be upconverted in the mixer to a transmission frequency and output from the mixer at the selected power output level.

Abstract: A self-learning geographically aware handoff method and system is disclosed. The system includes a handoff manager (108), which receives information about a position and movement of the mobile nodes (102a, 102b, 102c and 102d) present in the mobile network (100). The handoff manager learns the coverage capabilities of the access points (104a, 104b, 104c and 104d) in the mobile network. It then determines a second access point, to which a mobile node will handoff to, based on the learned coverage capabilities. The handoff manager then informs the mobile node about the second access point.

Abstract: A wireless multi-hop network of a communication system is structured with a number of the communication devices and the collecting communication device. Transmission information from each communication devices is sequentially relayed to reach the collecting communication device. Each communication device features a function for on/off control of a transmission/reception processing section.

Abstract: A cradle apparatus and a portable device are interconnected employing reflected wave transmission without interfering with an adjacent wireless system or impairing ease of use of the portable device. The cradle is provided with a function of a reflected wave reader and a digital camera is provided with a function of a reflector, whereby communication between the cradle and the digital camera is performed in a non-contact manner. The digital camera modulates a reflected wave of an unmodulated carrier transmitted from the cradle by varying the antenna load impedance in accordance with picked up image data, thereby performing reflected wave transmission. Communication is possible even while the portable device is somewhat apart from the cradle, and the ease of use of the portable device is not impaired even while communication is being performed.

Abstract: The invention proposes an upgradable product capable of covering two sub-bands. An outdoor unit comprises, on the uplink, a switchable oscillator coupled to a waveguide featuring a removable cover enabling the said waveguide to be converted into a band rejector filter.

Abstract: An apparatus for outputting data may be provided. The apparatus may include a DMB module for receiving a digital multimedia broadcasting (DMB) signal and processing the received DMB signal, a navigation module, and an output unit for outputting data according to at least one of operations of the DMB module and the navigation unit. The apparatus may further include a controller for controlling the DMB module and the navigation module, and controlling a switching operation for switching data to be outputted according to a broadcasting signal received through the DMB module. A method for outputting data may also be provided.