Abstract: A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations.

Abstract: Particular embodiments provide techniques for controlling power in a channel. The power being consumed in a channel may not always be fully used. For example, bursty or Aloha traffic may limit the power being used to transmit data in a channel. Thus, particular embodiments allow transceivers to increase the power used to transmit data in a channel. For example, many transceivers may be allowed to send data in a channel. If all transceivers were transmitting at once at an increased power level, the aggregate power level may be exceeded for the channel. All the transceivers may be allotted a fixed percentage of the aggregate power so as to guarantee not exceeding the power limit. However, not all transceivers may be using their allotted power at the same time. Thus, when the allotted aggregate power in the channel is not fully utilized, a transceiver may increase its traffic beyond its normal portion. For example, the transceiver may use a power-demanding high order modulation scheme to send data.

Abstract: Mobile user equipment for use in a cellular communications environment performs an improved cell selection on transitions out of a connected mode state. The transitions might be from one connected mode state to another or from a connected mode state to idle mode. The improvement in cell selection lies in assembling the list of candidate cells prior to cell selection. In the prior art, the list of candidate cells would usually be restricted to the serving cell or active cells supporting communication between the equipment and the network prior to transition. In embodiments of the invention, the list might comprise cells which are not the serving cell or which are outside the active set, for example a network-preferred cell or cells neighbouring the serving cell or cells of the active set.

Abstract: A network having distribution of access point loading includes access points to which mobile stations can associate themselves based upon access point beacon signal levels and loading levels for the various access points. A mobile station receives beacon signals from various access points and determines a signal strength for the received beacon signals. The mobile station also receives access point loading information from the access points. The mobile station associates with an access point based upon the access point beacon signal strengths and the access point loading information.

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 semiconductor device interconnecting unit configured to input/output a high-frequency signal having a millimeter wave band to/from a semiconductor device is provided. The semiconductor or device interconnecting unit includes a part of a band pass filter configured to pass therethrough the high-frequency signal having a millimeter wave band by using an LC resonance circuit, and a remainder of the band pass filter, wherein the part and the remainder are separated from each other. The part is provided inside the semiconductor device, and the remainder is provided outside the semiconductor device. The part and the remainder include capacitors having variable capacitors added thereto, respectively. A pass band for the high-frequency signal having a millimeter wave band is changed by changing capacitance values of the variable capacitors.

Abstract: A transparent commodity trading network facilitates transactions among parties. A plurality of mobile communications devices are each configured to broadcast product/service needs and/or product/service offerings of a party associated with the respective mobile communications device. Each mobile communications device is configured to receive product/service needs and/or product/service offerings broadcast by other mobile communications devices when respective mobile communications devices pass within a predetermined distance of each other. Each mobile communications device is configured to identify when a product/service need or product/service offering broadcast by another mobile communications device matches a corresponding product/service offering or broadcast product/service need broadcast by the respective mobile communications device.

Abstract: A system and method for dynamically instantiating a communication interface between a requesting entity and a client entity. A requesting entity transmits a trigger signal to a control point, where the trigger signal includes a preferred communication configuration. The control point inspects the preferred communication configuration and, if possible, instantiates a communication link that complies with the requested configuration. The communication link is deactivated either in response to a timing function, upon determining that the requesting and client entities have completed their data exchanges, or determining that an amount of time provided for the communication has expired.

Abstract: Disclosed is an apparatus and method for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising: a plurality of sub-arrays for beamforming, which are geographically distributed and each of which comprises a plurality of distributed antennas placed in random groups; and a central processing unit for identifying performances of subsets by applying a predetermined power allocation scheme according to subsets which can be obtained by combining the sub-arrays, by means of a Nakagami fading parameter and information about large-scale fading of each of the sub-arrays, fed back from a receiving party, for determining a subset having a best performance as an optimal subset according to the identified performances, and for performing power allocation based on the subset set as the optimal subset.

Abstract: A phase detector includes a plurality of phase detectors located in a phase correction loop, each phase detector configured to receive as input a radio frequency (RF) input signal and an RF reference signal, each of the plurality of phase detectors also configured to provide a signal representing a different phase offset based on the phase difference between the RE input signal and the RF reference signal; and a switch configured to receive an output of each of the plurality of phase detectors and configured to select the output representing the phase offset, that is closest to a phase of an output of an amplifier.

Abstract: Systems and methods for multi-band amplification. In an exemplary embodiment of the present invention, the multi-band amplification device has an uplink amplifier with a first port and a second port and a downlink amplifier with a first port and a second port. Furthermore, the multi-band amplification device has a first duplexer device in communication with the first port of the downlink amplifier and the second port of the uplink amplifier and a second duplexer device in communication with the first port of the uplink amplifier and the second port of the downlink amplifier. The first duplexer device is enabled to receive and transmit at least a downlink signal and an uplink signal of a first frequency band, a downlink signal and an uplink signal of a second frequency band, and a downlink signal and an uplink signal of a third frequency band.

Abstract: A dual-mode mobile terminal, which can access synchronous and asynchronous mobile communication systems, includes a key input panel and a controller. The key input panel includes a call switching key for switching between calls from the two systems and a call end key for ending calls from the two systems. While the terminal performs communication of one call received from one of the two systems in a general communication mode over a communication channel currently established by the one system, the controller determines whether an incoming call is received from the other system. If the incoming call is received, the controller notifies the user of receipt of the incoming call. If the call switching key is pressed, the controller prepares a communication environment for communication of the incoming call, allowing the user to perform the communication of the incoming call while maintaining the currently established communication channel.

Abstract: On transition of a 1x system from a standby state in which standby processing is performed to out of service state in an SHDR mode, the standby processing for the 1x system using a receiver unit (RX1) is halted and, when an instruction to switch from a call through an EVDO system using a transmitter-receiver unit (RX0/TX) and/or the receiver unit (RX1) to a call through the 1x system using the transmitter-receiver unit (RX0/TX) during the halt state is detected, a system detection process for detecting the 1x system is performed by using the receiver unit (RX1).

Abstract: A method and system for performing distributed outer loop power control in a wireless communication network are disclosed. The method includes the steps of determining a transmit power for a plurality of transmitting nodes such that signals sent from each of the transmitting nodes are received at a receiver associated with a receiving node at a predetermined signal-to-interference plus noise ratio (SINR) set point, increasing the SINR at the receiving node of one or more transmitting nodes of the plurality of transmitting nodes if a saturation value for a front end of the receiver associated with the receiving node is not near a predetermined saturation value, and decreasing the SINR at the receiving node of the one or more transmitting nodes of the plurality of transmitting nodes if the saturation value for the front end of the receiver associated with the receiving node is near the predetermined saturation value.

Abstract: The present invention relates to a communication device (28) adapted to communicate with at least one second communication device (26) in a half-duplex near-field communication scheme, and to a method of near-field communication. According to the invention the first communication device (28) receives a first request message (30) from the second communication device (26) which is supposed to be answered within a first response waiting time span (bRWT), and which contains an amount of request data. The first communication device (28) sends within the first response waiting time span (bRWT) a second request message (34) to the second communication device (26), the second request message (34) representing a request for a second response waiting time span (RWT(m)) for providing a first response message (32) in reply to the first request message (30).

Abstract: Disclosed is an apparatus in a diversity system of a mobile terminal having a main receiving unit and a sub-receiving unit, which includes a sub-antenna for receiving an input signal and a part of a transmitted signal of a transmitting unit, a band-pass filter (BPF) designed to greatly attenuate a low-band frequency of the part of the transmitted signal received through the sub-antenna, a high-pass filter (HPF) for additionally attenuating the part of the transmitted signal attenuated through the BPF, a low-noise amplifier for minimizing a noise of an output value of the HPF, an HPF for passing therethrough only a high-frequency component of an output value of the low-noise amplifier, and a mixer for mixing output values of the HPF and outputting a baseband signal. One of two BPFs in the sub-receiving unit is replaced by one HPF, and thus the HPF can be fabricated on chip with the terminal receiving unit.

Abstract: A relaying method and system in a communication system having a Base Station (BS), a Mobile Station (MS) for communicating with the BS, and a Relay Station (RS) for relaying signals between the BS and the MS are provided. In the relaying method and system, the BS generates a BS pilot sequence and transmits the generated BS pilot sequence to the RS. wherein a partial cross correlation between the BS pilot sequence and an RS pilot sequence, being the BS pilot sequence relayed by the RS is always ‘0’. Accordingly, system capacity is more efficiently utilized.

Abstract: A portable terminal includes a first housing and a second housing combined with the first housing while facing the first housing. The second housing translates about an axis perpendicular to a top face of the first housing while facing the first housing, thereby sequentially opening portions of the first housing and sequentially closing already opened portions of the first housing, thereby increasing diversification in use of the portable terminal. Portions of the first housing are sequentially opened or closed, thereby allowing a user to select a position of the second housing according to a desired function such as voice communication, mail writing, or broadcasting watching.

Abstract: An apparatus for transmitting and receiving multiple radio frequencies simultaneously over a single antenna is provided. The apparatus comprises a transmitter signal combining apparatus configured to communicatively couple with a plurality of transmitters, wherein the transmitter signal combining apparatus is configured to output a transmission signal based on any signals received from the plurality of transmitters. The apparatus also includes at least one transmit/receive signal duplexer coupled to the transmitter signal combining apparatus and configured to provide the transmission signal to an antenna, wherein the antenna receives an incoming radio frequency (RF) signal. Additionally, the apparatus includes a signal separation apparatus coupled to the at least one transmit/receive signal duplexer and configured to receive the incoming RF signal and provide the incoming RF signal to at least one receiver.

Abstract: Disconnection of communication is prevented and a connecting relation is maintained between radio devices even when a communication channel is dynamically switched. Accordingly, when a first radio device switches a communication channel used for radio communication with a second radio device, the first radio device firstly switches to a simultaneously-connectable channel capable of a simultaneous communication with an original channel, and then switches to a destination channel.