摘要:
The invention relates to a method for the reconfiguration of an information processing unit of a terminal (1), said terminal being/arranged in such a way as to receive information from a communication system (2, 3). The inventive method comprises the following steps: a reconfiguration phase of the information processing unit is initiated; and an information message signalling the initiation of the reconfiguration phase of the information processing unit is transmitted from the terminal to the communication system.
摘要:
A method for the synchronization of a radio receiver, comprising an estimation of the moment when a pulse (11, 17) is received (11, 17), performed from the moment when a previous pulse was received. The estimated moment is compared with the real moment when the pulse (21, 27) is received in order to validate an association of pulses with values of a code recorded in the receiver (31, 37). A moment for the beginning of transmission of a symbol is thus deduced, enabling the receiver to be synchronized in relation to the transmitted radio pulse sequence.
摘要:
For the reconfiguration of a radiotelephone unit including components programmable in configuration modes, the invention provides a removable electronic device having stored data defining a plurality of configuration modes which is connected to the apparatus. A configuration mode is selected from the apparatus in the device. The programmable components are programmed by the device and reconfigured in accordance with the selected configuration mode data under the control of the device. The data of the configuration modes can be downloaded from a server into the device through a downloader terminal.
摘要:
A method for the synchronization of a radio receiver, comprising an estimation of the moment when a pulse (11, 17) is received (11, 17), performed from the moment when a previous pulse was received. The estimated moment is compared with the real moment when the pulse (21, 27) is received in order to validate an association of pulses with values of a code recorded in the receiver (31, 37). A moment for the beginning of transmission of a symbol is thus deduced, enabling the receiver to be synchronized in relation to the transmitted radio pulse sequence.
摘要:
A method and a system for receiving an ultra-wideband signal with a self-adapting number of propagation paths. The transmitted signal includes, over a symbol time, a series of direct successive modulated pulses which propagate along a direct propagation path and secondary pulses which are associated with each direct pulse and which each propagate along a secondary propagation path. The method includes: receiving the series of direct and secondary pulses on the same receiver circuit; creating a composite correlation pattern, including a series of elementary patterns which are time-shifted in relation to a first elementary correlation pattern; calculating the value of the global correlation coefficient between each direct pulse which is associated with the plurality of secondary pulses and the composite correlation pattern, in order to obtain a global correlation value of the symbol, sum of the cross-correlation coefficients of each of the direct and secondary pulses.
摘要:
One element in one of several orthogonal OVSF codes with at most 2BM elements is generated dynamically by deriving an intermediate word having (1) B least significant bits identical to the least significant bits in the reverse order of a word representing a code number SF=2B and (2) BM−B most significant bits having predetermined state. An AND circuit multiplies the bit in the intermediate word and a word representing a determined position of the element in the code produces a BM-bit product word. An EXCLUSIVE-OR operation on the bits of the product word generates the code element.
摘要:
A method and a system for receiving an ultra-wideband signal with a self-adapting number of propagation paths. The transmitted signal includes, over a symbol time, a series of direct successive modulated pulses which propagate along a direct propagation path and secondary pulses which are associated with each direct pulse and which each propagate along a secondary propagation path. The method includes: receiving the series of direct and secondary pulses on the same receiver circuit; creating a composite correlation pattern, including a series of elementary patterns which are time-shifted in relation to a first elementary correlation pattern; calculating the value of the global correlation coefficient between each direct pulse which is associated with the plurality of secondary pulses and the composite correlation pattern, in order to obtain a global correlation value of the symbol, sum of the cross-correlation coefficients of each of the direct and secondary pulses.
摘要:
For the reconfiguration of a radiotelephone unit including components programmable in configuration modes, the invention provides a removable electronic device having stored data defining a plurality of configuration modes which is connected to the apparatus. A configuration mode is selected from the apparatus in the device. The programmable components are programmed by the device and reconfigured in accordance with the selected configuration mode data under the control of the device. The data of the configuration modes can be downloaded from a server into the device through a downloader terminal.