摘要:
An access point diagnosis unit 201 controls a radio access terminal portion 213 included in the access point 100, to execute a test of connection with the access point 100. A switch within the access point selectively connects the radio access terminal portion 213, with any of an antenna and radio reception parts of the own access point 100. In accordance with a failing part, the failure information which contains the failing part and/or a failure content is transmitted from the radio access terminal portion 213 to the radio access terminal 108 (1) along a first path tracing the radio reception part connected by the switch, etc. of the access point 100, or (2) along a second path tracing the antenna connected by the switch and the other access point 101.
摘要:
There is disclosed a handoff control method for registering a CDMA mobile station in such a way that battery power wastage is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.
摘要:
The number of oscillators required to construct a digital radiocommunication terminal can be reduced and a circuit used for the digital radiocommunication terminal can be reduced in size. For this purpose, the digital radiocommunication terminal for effecting information transmission using an N (integer)-phase-shift-keyed signal (identification symbol number N=4 upon .pi./4 shifted QPSK modulation), is constructed such that an oscillation frequency generated from a reference oscillator employed with a frequency synthesizer is selected to have a common multiple of a second intermediate frequency and an identification symbol phase N and is supplied to a detector for outputting received data therefrom.
摘要:
A .pi./4 shift QPSK modulator for receiving digital signals and for outputting a modulated signal therefrom in accordance with each of the inputted digital signals. The .pi./4 QPSK modulator is utilized in a communication apparatus and includes a counter for counting the number of the inputted digital signals, a phase information arithmetic unit for receiving a value of an output from the counter and a value of each of the inputted digital signals for outputting phase information of the signal to be modulated, an arithmetic unit for performing an arithmetic operation on values representing an impulse response of the output phase information from the phase information arithmetic unit and outputting impulse response values in accordance therewith, and an accumulating unit for accumulating impulse response values outputted from the arithmetic unit and for performing an arithmetic operation for enabling generation of a .pi./4 shift QPSK modulated signal.
摘要翻译:一种用于接收数字信号并根据每个输入的数字信号从其输出调制信号的π/ 4移位QPSK调制器。 pi / 4QPSK调制器用于通信设备中,并且包括用于对输入的数字信号的数量进行计数的计数器,用于接收来自计数器的输出值的相位信息运算单元和输入的数字信号的每一个的值 用于输出要调制的信号的相位信息的信号,用于对表示来自相位信息运算单元的输出相位信息的脉冲响应的值执行运算的运算单元,并输出与之相应的脉冲响应值;以及累积单元 用于累积从运算单元输出的脉冲响应值,并执行用于实现pi / 4移位QPSK调制信号的产生的算术运算。
摘要:
Location positioning setting information is read from a setting storage section when the user depressed a power key. The location positioning setting information comprises setting information, such as the maximum duration time of the location positioning operation and the operation timing when a power-off event has been generated. A control section turns off the power of a display section, a speaker, a microphone, etc., excluding a communication function for transmitting location positioning and positioning results. In this state, a location positioning section acquires the positional information of the mobile communication terminal. Then, a wireless communication section transmits the location positioning information of the positioned mobile communication terminal to a predetermined monitoring server which manages the positional information of the mobile communication terminal.
摘要:
There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of battery power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108 and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108 times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.
摘要:
A speech message recording and reproducing method and apparatus wherein a speech message associated with a facsimile transmission is stored in a communication apparatus having an automatic answering telephone apparatus associated with a facsimile apparatus. Information of the speech apparatus including at least a storage address thereof is converted to an optical pattern for printing on a recording paper. The printed optical pattern is optically detected, interpreted and transmitted by radio communication to the communication apparatus and the speech message stored at the storage address is reproduced. The optical pattern is read by a reader forming part of a portable telephone unit.
摘要:
A mobile communications equipment which communicates with another equipment through a base station, and in which the state change of the mobile communications equipment based on the movement thereof, such as the movement from outside a service area into the service area, is detected and is notified to the user of the mobile communications equipment. The notification is given by a method comprising the steps of accepting an instruction as to whether or not the user is to be notified that the state change has occurred between a state in which the equipment is communicable and a state in which it is incommunicable; analyzing if the communications are possible, on the basis of a signal sent from the base station, subject to the instruction of giving the notification; detecting the state change from the incommunicable state into the communicable state on the basis of the analyzed result; and notifying the user of the occurrence of the state change into the communicable state in response to the detection of the state change, by at least one notifying expedient selected from among production of a voice message, a notifying sound, a notifying light, and vibrations.
摘要:
A .pi./4 shift QPSK modulator for receiving digital signals and for outputting a modulated signal therefrom in accordance with each of the inputted digital signals. The .pi./4 QPSK modulator is utilized in a communication apparatus and includes a counter for counting the number of the inputted digital signals, a phase information arithmetic unit for receiving a value of an output from the counter and a value of each of the inputted digital signals for outputting phase information of the signal to be modulated, an arithmetic unit for performing an arithmetic operation on values representing an impulse response of the output phase information from the phase information arithmetic unit and outputting impulse response values in accordance therewith, and an accumulating unit for accumulating impulse response values outputted from the arithmetic unit and for performing an arithmetic operation for enabling generation of a .pi./4 shift QPSK modulated signal.
摘要翻译:一种用于接收数字信号并根据每个输入的数字信号从其输出调制信号的π/ 4移位QPSK调制器。 pi / 4QPSK调制器用于通信设备中,并且包括用于对输入的数字信号的数量进行计数的计数器,用于接收来自计数器的输出值的相位信息运算单元和输入的数字信号的每一个的值 用于输出要调制的信号的相位信息的信号,用于对表示来自相位信息运算单元的输出相位信息的脉冲响应的值执行运算的运算单元,并输出与之相应的脉冲响应值;以及累积单元 用于累积从运算单元输出的脉冲响应值,并执行用于实现pi / 4移位QPSK调制信号的产生的算术运算。