PROCEDIMIENTO Y APARATO PARA PROPORCIONAR INTEGRIDAD EN EL RECUENTO DE BITS Y TRANSFERENCIA SINCRONICA DE DATOS A TRAVES DE UN CANAL QUE NO MANTIENE LA SINCRONIZACION.

    公开(公告)号:ES2245001T3

    公开(公告)日:2005-12-16

    申请号:ES97929979

    申请日:1997-06-11

    Applicant: QUALCOMM INC

    Abstract: LA SINCRONIZACION E INTEGRIDAD DE CONTEO DE BITS DE UN TREN DE DATOS SINCRONOS SE MANTIENE DE UN EXTREMO A OTRO INCLUSO CUANDO SE TRANSMITE A TRAVES DE UN MEDIO QUE NO MANTIENE LA NATURALEZA SINCRONA DEL TREN DE DATOS SINCRONOS. UNA UNIDAD DE EQUIPO TERMINAL (100) GENERA UN TREN DE BITS DE VELOCIDAD DE TRAFICO CONSTANTE QUE ES ENVIADO A UNA UNIDAD DE TELECOMUNICACIONES (110). LA UNIDAD DE TELECOMUNICACIONES (110) GENERA UNA PRIMERA SECUENCIA DE DATOS QUE COMPRENDE UN PRIMER GRUPO DE LOS BITS DEL TREN DE BITS DE VELOCIDAD TRAFICO CONSTANTE Y UN PRIMER VALOR DE CAMPO DE LONGITUD. GENERA UNA SEGUNDA SECUENCIA DE DATOS QUE COMPRENDE UN SEGUNDO GRUPO DE LOS BITS DEL TREN DE BITS DE VELOCIDAD DE TRAFICO CONSTANTE Y UN SEGUNDO CAMPO DE LONGITUD. GENERA UNA TERCERA SECUENCIA DE DATOS QUE COMPRENDE UN TERCER GRUPO DE LOS BITS DEL TREN DE BITS DE VELOCIDAD DE TRAFICO CONSTANTE Y UN TERCER VALOR DE CAMPO DE LONGITUD. LA PRIMERA, SEGUNDA Y TERCERA SECUENCIAS DE DATOS SE TRANSMITEN A UNA UNIDAD BASE (118) QUE COLOCA EL PRIMER GRUPO DE BITS DE LA PRIMERA SECUENCIA EN UNA COLA (150). A CONTINUACION SE COLOCA EN LA COLA (150) UN GRUPO DE BITS DE RELLENO IGUAL AL NUMERO DE BITS PRESENTE EN CUALQUIERA DE LAS SECUENCIAS. LA UNIDAD BASE (118) DETERMINA ENTONCES EL NUMERO DE BITS DEL SEGUNDO GRUPO DE BITS DE LA TERCERA SECUENCIA DE DATOS EN BASE AL PRIMER VALOR DE CAMPO DE LONGITUD Y AL TERCER VALOR DE CAMPO DE LONGITUD. LA UNIDAD BASE (118) SOBRESCRIBE LOS BITS DE RELLENO EN EXCESO DE LA COLA (150) CON EL TERCER GRUPO DE BITS. EL NUMERO DE BITS DE RELLENO EN EXCESO ES IGUAL A LA DIFERENCIA ENTRE EL NUMERO MAXIMO POSIBLE DE BITS QUE PUEDE CONTENER CUALQUIER SECUENCIA Y EL NUMERO DE BITS DEL SEGUNDO GRUPO DE BITS.

    112.
    发明专利
    未知

    公开(公告)号:DK0906675T3

    公开(公告)日:2005-10-24

    申请号:DK97929979

    申请日:1997-06-11

    Applicant: QUALCOMM INC

    Abstract: Synchronization and bit count integrity of a synchronous data stream is preserved end to end even as it is transmitted via a medium which does not preserve the synchronous nature of the synchronous data stream. A terminal equipment unit produces a constant rate bit stream which is provided to a communications unit. The communications unit produces first, second, and third data frames comprising, respectively, first, second, and third set of bits from the constant rate bit stream and first, second, and third length fields. The first, second, and third data frames are transmitted to a base unit which places the first set of bits from the first frame into a queue. A set of fill bits equal to the maximum number of bits contained in any frame is then placed into the queue. The base unit then determines the number of bits in the second set of bits of the third data frame, based on the first length field value and the third length field value. The base unit overwrites excess fill bits in the queue with the third set of bits. The number of excess fill bits is equal to the difference between the maximum possible number of bits which may be contained in any frame and the number of bits in the second set of bits.

    113.
    发明专利
    未知

    公开(公告)号:AT301908T

    公开(公告)日:2005-08-15

    申请号:AT95901241

    申请日:1994-11-14

    Applicant: QUALCOMM INC

    Abstract: An apparatus and method of providing communications between standard unmodified terminal equipment over a telephone link that includes a digital wireless link. The digital wireless link introduces substantial time variable delay. In order to pass time sensitive messages over the link, time sensitive messages are recognized and translated into time insensitive messages for transmission over the wireless link. The time insensitive messages indicate the information contained in the time sensitive messages and in the timing of the time sensitive messages. At the receiving end, the time insensitive messages are recognized and the time sensitive messages reconstructed with the appropriate timing.

    114.
    发明专利
    未知

    公开(公告)号:AT301355T

    公开(公告)日:2005-08-15

    申请号:AT97929979

    申请日:1997-06-11

    Applicant: QUALCOMM INC

    Abstract: Synchronization and bit count integrity of a synchronous data stream is preserved end to end even as it is transmitted via a medium which does not preserve the synchronous nature of the synchronous data stream. A terminal equipment unit produces a constant rate bit stream which is provided to a communications unit. The communications unit produces first, second, and third data frames comprising, respectively, first, second, and third set of bits from the constant rate bit stream and first, second, and third length fields. The first, second, and third data frames are transmitted to a base unit which places the first set of bits from the first frame into a queue. A set of fill bits equal to the maximum number of bits contained in any frame is then placed into the queue. The base unit then determines the number of bits in the second set of bits of the third data frame, based on the first length field value and the third length field value. The base unit overwrites excess fill bits in the queue with the third set of bits. The number of excess fill bits is equal to the difference between the maximum possible number of bits which may be contained in any frame and the number of bits in the second set of bits.

    SYNCHRONIZED BROADCAST/MULTICAST COMMUNICATION

    公开(公告)号:CA2525239A1

    公开(公告)日:2005-08-04

    申请号:CA2525239

    申请日:2005-01-20

    Applicant: QUALCOMM INC

    Abstract: Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreadin g code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchroniz ed broadcast. An OFDM receiver is then used to process the received synchronize d broadcast transmission. An alternate embodiment implements a broadcast Pseud o- random Noise (PN) code for use by multiple transmitters. An equalizer is the n employed to estimate the synchronized broadcast transmission.

    117.
    发明专利
    未知

    公开(公告)号:BR0307640A

    公开(公告)日:2005-02-22

    申请号:BR0307640

    申请日:2003-02-13

    Applicant: QUALCOMM INC

    Abstract: For efficient communications of data across various protocol layers in a communication system (100), a base station (101) receives radio link protocol (RLP) packets (509) of data over a physical layer protocol (505). A processor (401) assembles received RLP packets (509) of data. The processor (401) is configured for determining whether a received RLP packet (509) of data is received out of sequence in a series of RLP packet (509) of data, starting an abort timer associated with a transmitted negative acknowledgment for measuring an elapsed time of the abort timer, determining whether the elapsed time of said abort timer exceeds an abort period of time dynamic threshold that is based on statistical data of periods of time measured for previously received successful retransmissions of RLP packet (509) of data.

    118.
    发明专利
    未知

    公开(公告)号:FI114776B

    公开(公告)日:2004-12-15

    申请号:FI962035

    申请日:1996-05-13

    Applicant: QUALCOMM INC

    Abstract: A method of invoking and canceling voice and data service between a mobile unit and a base station. Using a standard telephone system, the connection for a voice service and a data service is the same. With the introduction of the digital wireless link, the voice connection and the data connection are different. Therefore new dialing commands which indicate the intent of the connection are created. These commands can also be used to designate the intent of the call from a mobile unit capable of data and voice service but not capable of simultaneous voice and data service. They can also be used to invoke simultaneous voice and data services.

    METHOD AND APPARATUS FOR PROVIDING A PRIVATE COMMUNICATION SYSTEM IN A PUBLIC SWITCHED TELEPHONE NETWORK

    公开(公告)号:CA2244929C

    公开(公告)日:2004-12-07

    申请号:CA2244929

    申请日:1997-01-29

    Applicant: QUALCOMM INC

    Abstract: A private communication network through which a plurality of member users communicate using the public switched telephone network (PSTN) (10) is disclosed herein. Each member user utilizes either a modified land line telephone (48) directly connected to PSTN (10), or uses a modified mobile telephone (22) operatively coupled to the PS TN through a wireless communication system (14). The private communication network includes network call manager (40) having a telephone network interface (92) for establishing a telephone connection with each of a plurality of telephone lines (44) of the PSTN (20) . Each of the plurality of telephone lines (44) is associated with one of the plurality of member users. The network call manager (40) further includes a switch matrix (110), coupled to the telephone network interface, for providing an information signal received from an acti ve member user over a selected telephone line to the remaining non-active member users.

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