Abstract: The present disclosure provides a method and apparatus for self-interference processing. The method being applied to a base station, and including: determining that a terminal has a self-interference processing capability, wherein the self-interference processing capability is achieved through an autonomous denial functionality; configuring a first autonomous denial parameter for achieving the self-interference processing capability for the terminal; and sending the first autonomous denial parameter to the terminal, so that the terminal performs a corresponding self-interference processing according to the first autonomous denial parameter.

Abstract: A device includes a first interface to receive a signal from a first communication link, wherein the receive signal includes out-of-band (OOB) information. A detector coupled to the first interface detects the OOB information. An encoder coupled to the detector encodes the OOB information into one or more symbols (e.g., control characters). A second interface is coupled to the encoder and a second communication link (e.g., a serial transport path). The second interface transmits the symbols on the second communication link. The device also includes mechanisms for preventing false presence detection of terminating devices.

Abstract: Optimizing a power level for a transmission so that the transmission is receivable at or near a destination, but no farther, is useful for reduced-power transmissions. Taking into account known distance for the transmission as determined by onboard GPS and geographic databases, a power level may be set more precisely. Accounting for atmospheric conditions which may impact transmission as determined by onboard or received measurements of temperature, solar or other conditions may also permit a power level to be set more precisely. An obstruction database may be consulted to determine whether transmissions will degrade due to objects in between the transmitter and receiver, permitting power level, frequency, bandwidth or transmit/receive location to be adjusted accordingly.

Abstract: Techniques for detecting discontinuous transmission (DTX) are disclosed. In an example method, given a sequence of bits that is known by a wireless receiver to be included in transmission bursts targeted to the wireless receiver and given a series of received signal samples corresponding to an expected transmission burst for the wireless receiver, the wireless receiver estimates a channel response and a location for the sequence within the series. The wireless receiver generates a plurality of bit estimates from the subset of received signal samples, based on the estimated channel response, compares the bit estimates to bits in the sequence of bits, and determines whether a valid burst for the wireless receiver is present, based on said comparing. The disclosed techniques are particularly suitable for use in detecting DTX in VAMOS scenarios.

Abstract: A method of providing audio transmissions from an electronic device having internal audio multiplexing is disclosed. The method comprises combining a plurality of received audio input signals for output as a first mode of operation for the electronic device, where the electronic device is configured to output the plurality of audio input signals on at least one audio channel. When a priority audio signal is detected from one of the received audio input signals in the first mode of operation, the method interrupts playback of the remaining audio input signals with the priority audio signal as a second mode of operation for the electronic device and transfers, within the electronic device, the priority audio signal to the at least one audio channel once the priority audio signal is detected.

Abstract: Apparatus, and an associated method, for companding communication data. Companding is provided for a two-way radio communication station operable pursuant to a coded squelch scheme, such as an MURS or FRS radio. A baseband processor invokes compression operations upon originating communication data that is originated at the communication station. And, the processor invokes operation of expansion operations when the communication data comprises terminating data.

Abstract: Embodiments of the present invention can be used to enhance signals in a peer-to-peer radio system, such as a two-way radio system. In one embodiment, the invention includes receiving a communications signal on a channel from a remote radio at a radio using a plurality of antenna elements, such as an antenna array. The received communications signal includes a squelch code. The radio detects the squelch code, and enhances the received communications signal using the squelch code.

Abstract: A method of providing audio transmissions from an electronic device having internal audio multiplexing is disclosed. The method comprises combining a plurality of received audio input signals for output as a first mode of operation for the electronic device, where the electronic device is configured to output the plurality of audio input signals on at least one audio channel. When a priority audio signal is detected from one of the received audio input signals in the first mode of operation, the method interrupts playback of the remaining audio input signals with the priority audio signal as a second mode of operation for the electronic device and transfers, within the electronic device, the priority audio signal to the at least one audio channel once the priority audio signal is detected.

Abstract: Techniques are presented herein to provide tandem-free operation between two wireless terminals through two otherwise incompatible wireless networks. Specifically, embodiments provide tandem-free operation between a wireless terminal communicating through a continuous transmission (CTX) wireless channel to a wireless terminal communicating through a discontinuous transmission (DTX) wireless channel. In a first aspect, inactive speech frames are translated between DTX and CTX formats. In a second aspect, each wireless terminal includes an active speech decoder that is compatible with the active speech encoder on the opposite end of the mobile-to-mobile connection.

Abstract: Embodiments of the present invention can be used to enhance signals in a peer-to-peer radio system, such as a two-way radio system. In one embodiment, the invention includes receiving a communications signal on a channel from a remote radio at a radio using a plurality of antenna elements, such as an antenna array. The received communications signal includes a squelch code. The radio detects the squelch code, and enhances the received communications signal using the squelch code.

Abstract: A method for estimating a transmission channel from a multicarrier signal transmitted through said transmission channel, comprising real pilot symbols and so-called pure imaginary pilot symbols, consists in selecting one or several values zk of the received signal corresponding respectively to one or several real pilot symbols, and one or several values zl of the received signal corresponding respectively to one or several pure imaginary pilot symbols. The pilot symbols are sufficiently close both in frequency and in time such that it can be assumed that the fading of the signal through the transmission channel has a complex value ? substantially identical for the symbols. An estimated value {circumflex over (?)} of ? for the pilot symbols concerned is then determined by minimizing a least square equation involving the values zk and the values zl.

Abstract: A method for developing a personalized music based (preferably blues-music based) ring-tone for a mobile telephone based upon characters and length of a full name of a user of the mobile telephone.

Abstract: A squelch circuit for operating at high speed and at high frequencies includes a squelch input unit, a low swing pre-amplifier and a sampling and decision circuit. The squelch input unit pre-processes the positive and negative signals of an input signal to generate four pre-processed signals that are paired and sent to the low swing pre-amplifier. The outputs of the low-swing pre-amplifier are then over-sampled by the sampling and decision circuit. Multi-phase clocks are used to control the over-sampling in the sampling and decision circuit. A logic circuit then determines if the state of the input signal based on multiple samples.

Abstract: A portable GPS/radio unit (10) communicates over a wireless radio network (12) with at least one other such unit. The unit (10) may transmit radio signals over the network (12) indicative of the unit's location. The unit (10) includes a single, push-to-talk button (38) that may be pressed to both transmit a voice communication and to initiate transmission of location data. The unit (10) also includes a “polling” function that requests location data from other units, an auxiliary coding system that codes or encrypts all transmitted data, and an emergency message feature that facilities the transmission and receipt of emergency messages.

Abstract: A DMT modem (40) is disclosed, in which a combined time domain equalizer and per-tone equalizer is applied to a received DMT signal. The combined equalizer includes a first FFT function (44) that is applied to a set of samples in a time-domain signal after the application of a time domain equalizer (42). The first FFT function (44) produces an initial FFT result, that is accumulated with a sliding FFT (46) performed upon difference values in the time domain samples. The sliding FFT results are applied to a per-ton equalizer (48) which applies a set of complex coefficients determined in training of the modem. A simple 1-tap FEQ (50) then can recover the signal. The combined equalizer enables per-tone equalization, in a manner that is compatible with conventional DSL training standards. According to a second embodiment, the per-tone equalization is performed only on selected tones of the multitone signal.

Abstract: Embodiments of the present invention can be used to enhance signals in a peer-to-peer radio system, such as a two-way radio system. In one embodiment, the invention includes receiving a communications signal on a channel from a remote radio at a radio using a plurality of antenna elements, such as an antenna array. The received communications signal includes a squelch code. The radio detects the squelch code, and enhances the received communications signal using the squelch code.

Abstract: A method for selectively shunting an acoustic driver within an electronic device detects the presence of a squelch signal from a local emitter and automatically shunts the acoustic driver in response to the detection, free of any communication back to the emitter. The squelch signal originates from an emitter which is positioned extrinsic to the device, and can be broadcast so as to define a zone of influence within which the acoustic drivers of electronic devices will be squelched. In lieu of an acoustic driver, a vibrator can be activated to quietly alert the user of the incoming message while the squelch signal is present. As a result, the invention enables a proprietor to a greater degree of control over ringing and beeping noises generated by such devices when positioned within a designated space. A broadcast system for defining the zone of influence and electronic devices that include circuitry that implement the method are also disclosed.

Abstract: A USB-based wireless transmitting/receiving system includes a transmitting portion connected to at least one USB-based peripheral device for receiving a signal from the peripheral device and a receiving portion connected to a computer host and coupled to the transmitting portion in a wireless fashion for receiving and applying the signal from the transmitting portion to the computer host whereby a wireless communication is established between the computer host and the USB-based peripheral device. Both the transmitting portion and the receiving portion include a central processing unit for processing signals received, a receiving unit for receiving signals, a transmitting unit for transmitting signals and a power supply system for powering the transmitting portion or the receiving portion. The power supply system includes a regulation circuit adapted to connect to an electric main.

Abstract: A pulse data coding method for wireless signal transmitting and receiving devices includes the steps of using a transmitter to transmit a signal of pulse data to be transmitted, transmitting at least one identification code pulse signal after a predetermined time interval from the transmission of the pulse data signal, and transmitting a check code pulse signal after another predetermined time interval from the transmission of the identification code pulse signal. The check code pulse signal is obtained by coding the pulse data signal and the identification code pulse signal according to a predetermined coding process. When a corresponding receiver receives the signal from the transmitter, it determines a correctness of the received signal according to the predetermined coding process, which may be an algorithm of addition, subtraction, multiplication, division, and/or a ratio operation.

Abstract: A method for transmitting a unique signal pattern on a serial bus to indicate the need for processing to re-establish synchronous communications on said bus, especially at power up, awaken from sleep or upon a fault such as loss of synchronization. The method comprises sending one or more silent intervals on a bus which normally requires transmission of data or fill characters at all times to maintain synchronization. The silent interval(s) have a predetermined duration and a predetermined sequence of durations if the durations of each interval are different and more than one interval is used. The predetermined pattern is known to all transceivers coupled to the bus. A long silent interval of a predetermined duration which is also known to all transceivers is sent at the end of the unique pattern to indicate the end of transmission thereof. A low power receiver monitors the bus at all times and listens for silent intervals and measures the durations thereof.

Abstract: A pager unit that can receive a message when it is turned off. A power supply of the pager unit is turned on by a control unit prior to the time scheduled to receive a message, and then turned of f after the message has been received. Accordingly, the pager can receive a message during the time it is scheduled to be turned off, conserving battery power while allowing it to receive scheduled messages. The receiving time for receiving messages can be arbitrarily set via a time-setting changing message received while the pager is turned on.

Abstract: A method and apparatus for transmitting and receiving data using a continuous tone control squelch system (CTCSS), which can transmit and receive data simultaneously with voice communication using the CTCSS. The apparatus is capable of transmitting and receiving a global positioning system (GPS) data signal containing a position value together with a voice signal using the CTCSS by a wireless communication terminal. Therefore, a user of the terminal can notify another party of his or her current position while conducting a voice conversation therewith. The method comprises dividing an effective frequency band of the CTCSS into regular intervals, setting the divided intervals as channels and assigning data code values respectively to the set channels. For data transmission, CTCSS frequency signals corresponding respectively to code values of specific data are successively transmitted.

Abstract: A method and apparatus in a selective call communication system is used for transmitting a message of a message type selected from non-maildrop and maildrop (504), wherein the message of maildrop type includes one of a plurality of categories of information. The controller (112) of the system is used for identifying the one of the plurality of categories of information to a user. The controller (112) transmits the message with an identifier (412, 414) for identifying one of a plurality of icons corresponding to the one of the plurality of categories of information. A selective call receiver (122) receives and decodes the message and the identifier (412, 414). The display (324) of the selective call receiver (122) is used for displaying the one of the plurality of icons, in response to receiving the identifier (412, 414).