Abstract: A wireless communication device performance, such as standby time, is improved by adaptively allocating surplus system resources to change quick paging channel parameters at the system, such a system being for example, a base station. Adaptively adjusting the quick paging channel parameters allows available base station resources to be allocated to the quick paging channel, thereby enabling the wireless communication device to demodulate the quick paging channel more reliably. Parameters such as the number of quick paging channels, the data rate used by the paging channel, and the quick paging channel transmit power level are weighed and adjusted.

Abstract: Wireless communications mobile terminals demodulate incoming signals according to two different demodulation algorithms. The first algorithm is the primary algorithm used by the mobile terminal to prepare the signals for higher protocol level processing, called the enhanced algorithm. The second algorithm is a secondary algorithm used primarily to determine error rates to be reported back to the base station, called the basic, or conventional, algorithm. The enhanced algorithm provides improved performance as compared to the basic algorithm. The mobile terminal reports signal quality measurements to the wireless communications system based on the demodulation using the basic algorithm, rather than those based on the enhanced algorithm. In alternate embodiments, the mobile terminal does not actually demodulate according to the basic algorithm, but instead maps the results from the enhanced algorithm to what the expected results would be with the basic algorithm.

Abstract: A transmission and reception system includes a transmission apparatus 1 and reception apparatuses 21 and 22. The transmission apparatus 1 transmits a storage identifier for identifying a storage medium and data. The reception apparatuses 21 and 22 each include a receiving section for receiving the storage identifier for identifying the storage medium and the data, and a storage control section for storing the data received by the receiving section on the storage medium identified by the storage identifier received by the receiving section. Hence, automatic storage of data conforming to personal taste and simultaneous automatic storage of data for plural persons are realized.

Abstract: A frequency offset correction value estimation section (21) receives a signal including a predetermined fixed pattern from a transmission side, thereafter, selects a combination of fixed patterns used in a process of estimating a frequency offset is selected depending on the state of a channel, and an estimation result of the frequency offset calculated by the combination of the fixed patterns is output as a correction value of a determined frequency offset. A frequency offset correction section (22) receives the received signal obtained after the correction is performed for correcting a frequency offset of the received signal on the basis of the correction value, and an equalizer (23) demodulates the received signal by using a predetermined algorithm.

Abstract: A method for eliminating the disturbance caused by a mobile station (MS) situated within a certain area 1. In order to be able to prevent disturbance caused by a mobile station reliably, the mobile station (MS) is provided with control means for the muting of the mobile station as a response to a predetermined message (S1) transmitted to the mobile station, and transmitting means (BTS) are arranged in said certain area 1 for the transmitting of said predetermined message to a mobile station situated in the area 1 in order to mute the mobile station.

Abstract: In a wireless communications system, a base station transmits power control signals (e.g., the power control bits of a power control sub-channel) to a mobile using a forward-link channel that is decoupled from all other signals transmitted from that base station to that mobile. For example, the decoupled forward-link channel may be a common power control channel. The mobile then uses the power control signals received in the decoupled forward-link channel to control its power level for transmitting one or more reverse-link channels to the base station. The ability of base stations to use decoupled forward-link channels in order to transmit their power control signals to a mobile enables a mobile to operate with different active sets for the forward and reverse links. This enables forward-link data traffic to be implemented using a simplex mode, even when the mobile is operating in soft handoff in the reverse link.

Abstract: A transmitter uses adaptive array weights to modify a gain and a phase of a communication signal to produce a plurality of element communication signals coupled to antenna elements in an adaptive array antenna. The communication signal is transmitted along with an element pilot signal that is coupled to one of the elements in the adaptive array antenna. In a receiver, the communication signal is received, and the element pilot signal is received. Thereafter, the adaptive array weights used at the transmitter are estimated in response to comparing characteristics of the received element pilot signal to characteristics of the received communication signal.

Abstract: A synchroniser for use in a receiver which receives signals, said synchroniser comprising means for providing a digital control signal, said control signal defining a plurality of different levels; means for controlling the level provided by successive ones of said control signals, successive ones of said control signal defining different values; and means for estimating the difference between the levels of successive ones of said control signals.

Abstract: In a TCP/IP network, congestion control techniques such as slow start and congestion avoidance are employed. Such networks include wired and wireless links. However, normal operation of the wireless links exhibit different latencies than those exhibited over the wired link. The protocols employed in the wired network do not lend themselves well to efficient communication over wireless connections, and can cause slow start to be triggered.

Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) is converted into a transmission data signal having a faster rate M(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.

Abstract: Systems and methods for transmitting signals concerning the location of an emergency vehicle to other cars traveling in the vicinity of the emergency vehicle alert the other vehicles to the presence of the emergency vehicle. A transmitter unit which is desirably automatically switched on whenever the flashing lights and sirens of the emergency vehicle are activated. transmits a signal preferably only within a limited range adjacent or near the emergency vehicle. The transmitted signal preferably identifies the present location and direction of the emergency vehicle. The location and direction information of the emergency vehicle is preferably provided by GPS data generated by a GPS system associated with the emergency vehicle. Automobiles and other vehicles are outfitted with receivers for receiving the signals transmitted by emergency vehicles as described above.

Abstract: A method and apparatus for generating an optimum recording power before recording user data in a recordable optical recording medium is disclosed. According to the method and apparatus, an optimum power calibration (OPC) is performed in the unit of a sector, and the start position of the respective physical sector can be synchronized. Thus, the optimum recording power can be determined even in a DVD-R/RW in which a PCA area exists but no OPC method is prescribed. Also, the degree of OPC can be heightened, and the limitation of the PCA area can be overcome. The method and apparatus also enables an easy and accurate search of the start position even in an odd sector where LPP data is recorded in odd positions.

Abstract: A selective Global Service Redirection mechanism allows a service provider, for instance, to instruct only CDMA2000 (MOB_P_REV=6) mobiles to access specific carrier that is deployed to support advanced services known as 3G services. In another embodiment, data-only CDMA2000 mobiles are instructed to access specific carrier that is optimized to support high speed data services. Additionally, data-only CDMA2000 mobiles may be instructed to access a specific carrier that is optimized to support high speed data services. Pre-CDMA2000 mobiles (MOB_P_REV<6) are redirected by a conventional Global Service Redirection Message to another carrier, while CDMA2000 mobiles are instructed to ignore this redirection.

Abstract: A method (100) for amplitude equalization in transmit and receive levels in a base station wideband transceiver (50) includes the step of assigning (102) a plurality of transmit and receive carrier frequencies to the base station wideband transceiver and the step of flattening (104) the power in the plurality of transmit and receive carrier frequencies in the plurality of base wideband transceivers using software amplitude pre-distortion.

Abstract: A user terminal (16) includes an RF transceiver (30) for transmitting modulated RF signals to a gateway (14) and for receiving modulated RF signals from the gateway via at least one satellite (112). The satellite may be a GEO or a non-GEO satellite. The user terminal further includes a signal processor (32) coupled to the RF transceiver for demodulating received RF signals to digital signals, an audio unit (90,92,94) for transponding speech signals with a user, and a plurality of encoders/decoders (2A,2B) and/or vocoders (82,84,86) between the signal processor and the audio unit for encoding and decoding speech signals passing to and from the audio unit. A first vocoder can be a variable rate vocoder, a second vocoder can be a fixed rate vocoder, where the fixed rate vocoder operates at an average data rate that differs from, e.g., is less than, an average data rate of the variable rate vocoder.

Abstract: A device for detecting a signal of a wireless local area network comprising a portable entity for being taken by a user to find a strength of the signal at a point in the wireless local area network; a wireless transceiver located in the portable entity for receiving the signal; a controller located in the portable entity and electrically connected to the wireless transceiver for processing the signal and producing a result; and a controllable panel located on the portable entity and electrically connected to the controller for displaying a message about a distribution status of the signal to the user according the result.

Abstract: The transmission power control apparatus of the present invention detects a data quality after a smaller number of iterations and based on the detected result, performs transmission power control when high quality data transmissions are performed using error correcting codes with iterative decoding performed.

Abstract: A pager which includes, in addition to a message receiving function, a data generation program responsive to an operation for generating and storing data in the memory; and optical communication circuit for generating and transmitting a first optical signal indicative of the message or the generated data in accordance with a data selection command to another pager and for directly receiving a second optical signal including second data from the other pager and outputting the received data; and a receiving control program for storing the received data in the memory in response to a receiving command. It may further comprise: an ID code generation program for generating a first ID code according to the data selection command; a data attaching program for attaching the ID code to the data to be transmitted to another pager. The received data is stored according to the received ID code. A light intensity changing circuit may change an intensity of the first optical signal.

Abstract: A method and apparatus for dynamically controlling signal power levels in a bi-directional backhaul communication link between a base station and a repeater station is provided. The signal power level of a signal transmitted between a base station and a repeater station is measured at the receiver of the signal. Once the received signal power level has been measured, the power level data based on the received signal power level is automatically transmitted from the receiving station back to the source of the measured signal over the backhaul link. Upon receipt at the source, the power level data is extracted and analyzed to determine if the source needs to alter its transmitted power. Once the power level data is analyzed to determine if a change in the transmitted power is required, the source can automatically respond by increasing, decreasing, or maintaining the transmitted power.

Abstract: Method and apparatus for estimating reverse link loading in a wireless communication system. In the present invention, the reverse link signals are passed through notch filters such that no energy (or energy of negligible amounts) is transmitted in these areas of the reverse link frequency band. At the base station, the unloaded cell energy is estimated by measuring the energy in the areas where the reverse link signals are notched. The in band energy is then compared to the energy in the notched portions of the reverse link band and based on this ratio cell capacity is determined.

Abstract: The present invention provides a wire-less communication device including: a main circuit capable of at least one operation of writing, reading and erasing data, and browsing and displaying informations as well hearing voice informations; a radio unit having at least a first function block of transmitting a radio wave; and a power supply selector electrically coupled to the radio unit and the main circuit separately, wherein, in a first operational mode, the power supply selector supplies a power to both the radio unit and the main circuit, so as to place the radio unit and the main circuit in operable-state, and wherein, in a second operational mode, the power supply selector inhibits a power supply to at least the first function block of the radio unit, so as to place at least the first function block of the radio unit in inoperable-state and place the main circuit in operable-state.

Abstract: The invention relates notably to a method for clipping a wideband signal in order to eliminate signal overshots having an amplitude above a predefined threshold before submitting the wideband signal to a power amplifier.

Abstract: The invention relates to a method for minimizing the effect of interference in a radio system, and to a radio system. The radio system comprises a measuring means which is adapted to measure the transmission frequency of the power control requests transmitted by a base transceiver station to each subscriber terminal. The radio system comprises an attenuation means which is adapted to alter the attenuation of the signals arriving at the reception band of the base transceiver station and which are transmitted by the subscriber terminal, the transmission frequency of power control requests transmitted to which has exceeded a predefined transmission frequency of power control requests.

Abstract: Wireless service option number assignments are divided into related groups. One group comprises voice service options: #1 (TIA/EIA-96-C “basic” 8k), #3 (IS-127 EVRC 8k), and #17 (IS-733 13k) which refer to different voice rates. Other groups may include data services; however, several subgroupings are possible, and may be used to keep the size of each group at a manageable level. The TIA/EIA-96-C is hereby incorporated by reference. Definitions for each related group of service options (i.e., bitmap) would be maintained in a standard such as TSB58. The TSB58 standard is hereby incorporated by reference.

Abstract: In a device for communicating data between a base station having at least two transmit antennas, and a mobile station having at least one receive antenna in a mobile communication system, the device includes: a transmitter at the base station, for inserting power control bit (PCB) patterns into the data and sending the data with the PCB patterns inserted therein, the PCB patterns indicating one transmit antenna being used to transmit the data; and a receiver at the mobile station, for receiving the data, detecting the PCB patterns from the received data and determining the one transmit antenna from the detected PCB patterns.

Abstract: The present invention relates generally to satellite communication systems, and more particularly to a method and system for stabilizing transmission frequencies in a mobile satellite communication system. The preferred embodiment of the invention involves adjusting the transmit frequency of the gateway to account for a frequency shift from the reference frequency on the link between the gateway and the satellite. The preferred method of stabilizing the transmission frequency of a mobile terminal in a mobile satellite communication system involves receiving frequency offset information transmitted by a gateway in the mobile satellite system, and adjusting a reference oscillator in a mobile terminal based on the frequency offset information. The preferred embodiment of the system includes a plurality of mobile terminals, a satellite adapted to communicate with the mobile terminals, and a gateway in communication with the satellite.

Abstract: In a mobile communication device having a first wireless section for a portable phone and a second wireless section for short range wireless data communication, the second wireless section is controlled by a control section so that it is intermittently put into an on-state under control of a control section in a standby state so as to reduce power consumption of the second wireless section. Such intermittent on-state is established by intermittently turning a battery of the second wireless section in the on-state by the control section. The second wireless section may be controlled individually from or dependently on the first wireless section.

Abstract: An optimum weight estimating apparatus and method of a mobile station for a mobile communication system in which a base station uses closed transmit diversity technology. Conventionally, all weight vectors stored in a lookup table should be applied to an optimum weight estimator to calculate receiving power, so that the amount of calculation considerably increases when there are many antennas. To overcome this problem, the weights of the lookup table are appropriately adjusted so that the variation of the differences between two adjacent vectors can be minimized. An optimum weight is obtained using the difference vector between weight vectors, thereby simplifying the calculation of receiving power. Therefore, the power loss of the mobile station can be minimized.

Abstract: An error rate of received signal is measured by a received signal error measuring unit 32, and a target SIR is changed by a target SIR decision unit using the error rate. It is also possible to detect error rate of received signal in an unit of frame using a CRC signal of a frame. It is further possible to detect error rate of received signal by detecting errors of known pilot signals inserted in a constant interval.

Abstract: The present invention relates to a wireless, voice-activated remote control device for controlling an electronic device having voice control circuitry. A short-range range wireless data and voice communication link, for example using Bluetooth technology, is established between the remote control device and the electronic device. To activate voice control circuitry in the electronic device, a user supplies an input to the remote control device. In response to the user input, wireless link circuitry within the remote control device sends a control signal, for example an AT command, to the electronic device. The electronic device receives the control signal and transmits a control signal indicating the status of the electronic device. Once the voice control circuitry is activated, the user provides a voice command to the remote control device. The remote control device transmits the voice signal to the electronic device over the wireless communication link.

Abstract: A method of signaling compressed mode parameters to a mobile station from a mobile radiocommunications network, wherein said compressed mode parameters are signaled by said network to said mobile station together with control parameters for radio measurements to be performed by said mobile station.

Abstract: A method for improving performances of a mobile radiocommunication system using a power control algorithm and being subject to transmission interruptions, wherein a recovery period is provided following a transmission interruption to compensate for the effects of the transmission interruption on the power control algorithm, and wherein the recovery period includes different parts wherein different types of compensation are successively carried out, these types being determined so as to ensure that a minimum compensation can first be obtained and that compensation is not higher than necessary thereafter.

Abstract: A method for improving performances of a mobile radiocommunication system using a power control algorithm for controlling a transmit power according to a transmission quality target value. Upon the occurrence of a significant change in the required transmit power, the power control algorithm is bypassed by changing the transmit power according to a corresponding change in the required transmission quality target value.

Abstract: A method for improving performances of a mobile radiocommunication system using a power control algorithm, wherein the system may be subject to transmission interruptions. The method uses the steps of: determining a preferred form in which the power control algorithm should better be implemented, when transmission is resumed after a transmission interruption, to better compensate for the effects of the transmission interruption on power control; and implementing the power control algorithm in the thus determined form.

Abstract: In a method of controlling power in a mobile radiocommunication system, upon detection of an interruption in communications transmission, a power control algorithm is implemented with at least one modified parameter, for a given duration, and the modified parameter and the given duration are determined so as to compensate for the effects of the transmission interruption on power control.

Abstract: An antenna alignment method for example for application to transmit/receive band satellite ground terminals, and a peak search tool for the realization of this method. In the method, from the antenna, a test signal is transmitted over an uplink channel to the satellite. Over a downlink channel from the satellite is received a sequence of alignment accuracy indications for the test signal. On the basis of the sequence of alignment accuracy indications, adjustments to the antenna's orientation for the alignment parameter are made.

Abstract: An optimum combiner that reduces the amount of interference imposed upon a first base station by transmissions of other base stations within the same communication system. Two antennas are used to receive transmissions within a receiving station. A rake receiver is coupled to each antenna. By optimally combining the signals that are received by each independent finger of the rake receiver, interference that is correlated between a finger associated with the first antenna and a finger associated with the second antenna can be minimized with respect to the desired signal. Optimum combining requires determination of optimum combining coefficients.

Abstract: The invention consist in a simulation method for the resolution of the power control convergence problem.

Abstract: An approach for synchronizing operation of a first communications terminal with operation of a second communications terminal involves establishing a communications link between the first communications terminal and the second communications terminal, the communications link being defined by a communication standard; and synchronizing a first clock coupled to the first communications terminal with a second clock coupled to the second communications terminal by receiving a time standard signal into the first communications terminal independently of the communication standard. This approach can be implemented using a first clock; a first communications terminal coupled to the first clock; a second clock; a second communications terminal coupled to the second clock; a communications link defined by a communication standard; and a transmitter transmitting a time standard signal independently of the communication standard to the first clock and setting the first clock in response to the time standard signal.

Abstract: Disclosed is a transmission power controller to prevent a transmission power from being excessive in mobile communication terminal equipment that requires a precise transmission power control. Branching filter 11, detector 12 and smoothing circuit 13 in combination generate a detected voltage corresponding to an average transmission power from the mobile communication terminal equipment. Threshold setting circuit 14 generates a threshold voltage corresponding to an allowable maximum average transmission power. Voltage comparator 15 decides if the average transmission power from the mobile communication terminal equipment is higher or lower than the allowable maximum average transmission power by comparing the detected voltage with the threshold voltage. Controller 16 varies a control voltage so as to lower a gain of a variable gain amplifier 4 if the average transmission power is decided to be higher than the allowable maximum average transmission power.

Abstract: A method, apparatus, article of manufacture, and propagated signal, for setting up a call by receiving a value representing a power level for a cell, adjusting the value representing the power level for the cell based on congestion to produce an adjusted value, and setting up the call based on the adjusted value.

Abstract: To detect and/or prevent the use of radio communication equipment in situations or places in which such use is undesirable, according to the invention a short-range radio communication unit may be used to detect portable radio communications unit in the vicinity and transmit to any such units that are turned on, either a command to turn them off or a message to the bearer of the phone. The telephone also comprises a short-range radio communications unit for this purpose.

Abstract: A communication system such as a telephone system has at least a base station and a communication device to communicate with the base station, the communication device comprises an RF power amplifier having an RF output for coupling to an antenna and an RF output power control input, a power supply having a power supply terminal, a control input and a supply output coupled to the RF output power control input for controlling an RF output power on the RF output in dependence on a signal on the control input of the power supply, a data receiver means for coupling to the antenna, the data receiver means having a data output for providing data received from the base station which represents information about said RF output power, and a table means containing a listing of possible power supply control input values related to possible RF output power values, the table means having a table selection input coupled to the data output of the data receiver means and a table output coupled to the control input of the pow

Abstract: The system transmits data between terminals of a wireless network. In the system, a base station/central controller (“BS/CC”) controls transmission of data from a transmitting terminal to plural receiving terminals, where the data is ordered in slots of a control data frame (“CDF”), and where each slot is reserved for a data transmission between the transmitting terminal and a specific receiving terminal. Specifically, the BS/CC divides the plural receiving terminals into a set of power-saving terminals and a set of non-power-saving terminals, and then reserves a set of slots in the CDF for data transmission between the transmitting terminal and the power-saving terminals, and another set of slots in the CDF for data transmission between the transmitting terminal and the non-power-saving terminals.

Abstract: A mobile station is transitioned between control states in a telecommunications system based on available power at the mobile station. In an embodiment, a mobile station signals the system to indicate that power available to the mobile station is less than or greater than a predetermined threshold and that timers for controlling transitions between packet data service control states are adjusted accordingly. If power is below the predetermined threshold, the time period durations of transition timers for control states that require higher mobile station power can be reduced. The mobile station will then spend less time in those control states, thereby conserving battery power.

Abstract: The invention relates to a method and an arrangement for controlling the total transmitted power in a mobile telephony system with a multiplicity of carrier waves, a multi-carrier system, in which system each carrier wave included has a defined output power at certain known points in time. The invention is characterized in that it comprises measuring the mean power (Pm) of the combined transmitted signal of the carrier waves in the system at points in time when the respective output power of the carrier waves is defined, calculating the desired mean power of the combined transmitted signal of the carrier waves in the system, and controlling the power of the combined transmitted signal to a desired mean power.

Abstract: A wireless communication apparatus includes a variable power amplifier (19) and a power amplifier (20). A variable power amplifier control unit (24) controls the gain of the variable power amplifier (19) for controlling transmission power of the own apparatus. At this time, a condition change detecting unit (28) detects changes in conditions of the own station and a counter station. Based upon the detected condition changes, a transmission power control bit controlling unit (26) and a transmission power control period controlling unit (27) change a control period of a transmission power control bit and a transmission power control range. This transmission power control bit is inserted into a transmission signal, then, the transmission signal is transmitted to the counter station. The condition changes are detected based upon reception power, transmission power, the transmission power control bit, a change amount of control conditions, and a change speed of the control conditions.

Abstract: An approach for synchronizing operation of a first communications terminal with operation of a second communications terminal involves establishing a communications link between the first communications terminal and the second communications terminal, the communications link being defined by a communication standard; and synchronizing a first clock coupled to the first communications terminal with a second clock coupled to the second communications terminal by receiving a time standard signal into the first communications terminal independently of the communication standard. This approach can be implemented using a first clock; a first communications terminal coupled to the first clock; a second clock; a second communications terminal coupled to the second clock; a communications link defined by a communication standard; and a transmitter transmitting a time standard signal independently of the communication standard to the first clock and setting the first clock in response to the time standard signal.

Abstract: A method and apparatus for controlling transmit power levels of a plurality of different data streams transmitted from at least one base station to a mobile station in a mobile radio communication system is described. A stream of power control commands is formed at the mobile station in accordance with either the first or second received data stream. A power control signal is formed at the mobile station from the first stream of power control commands and transmitted to the base station.

Abstract: The disconnection ratio of calls of a mobile terminal is reduced when the mobile terminal during communication is located far from a base station and the propagation loss of a radio line increases. In the mobile terminal when a transmission-power value from a transmission power control unit becomes maximum, a transmission data control unit inputs power control bits “0” and “1” read by a power control bit reading unit and a counter counts the power control bit “0”. If a counted value of the counter exceeds a threshold, the transmission data control unit stops transmission of data through a reverse supplemental channel and switches data transmission to data transmission only through a reverse fundamental channel.