11.
    发明专利
    未知

    公开(公告)号:BR9510001A

    公开(公告)日:1998-01-13

    申请号:BR9510001

    申请日:1995-11-29

    Applicant: QUALCOMM INC

    Abstract: The invention provides a system and method for testing signal transmission quality within a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.

    METHOD AND APPARATUS FOR MOBILE UNIT ASSISTED CDMA TO ALTERNATIVE SYSTEM HARD HANDOFF

    公开(公告)号:CA2216635A1

    公开(公告)日:1996-10-03

    申请号:CA2216635

    申请日:1996-03-19

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for providing a reliable means to perform handoff from a code division multiple access (CDMA) system using a pilot signal to an alternative access technique system. Simple pilot box circuitry (350) is added to a set of border base stations (C2A - C2R). The border base stations (C2A C2R) are base stations which operate only in the alternative access technique and which have coverage areas which are contiguous with coverage areas of CDMA operation base stations. The mobile unit monitors for the pilot signal from the border base stations (C2A - C2R) in the same manner as it monitors for pilot signals from the CDMA operation base stations (C1A - C1s). When the mobile unit detects the pilot signal corresponding to a border base station (C2A - C2R), it notifies a system controller (202) in accordance with standard operation. The system controller (202) is aware that the pilot signal corresponds to a border base station (C2A - C2R) and thus triggers a hard handoff process to the alternative access technique system in response thereto.

    METHOD AND APPARATUS FOR TESTING A DIGITAL COMMUNICATION CHANNEL AT VARIABLE OR FIXED DATA RATES

    公开(公告)号:CA2206251A1

    公开(公告)日:1996-06-06

    申请号:CA2206251

    申请日:1995-11-29

    Applicant: QUALCOMM INC

    Abstract: The invention provides a system and method for testing signal transmission quality wihin a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.

    15.
    发明专利
    未知

    公开(公告)号:FI962035A0

    公开(公告)日:1996-05-13

    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.

    PRIORITIZATION OF SEARCHING BY A REMOTE UNIT IN A WIRELESS COMMUNICATION SYSTEM
    16.
    发明申请
    PRIORITIZATION OF SEARCHING BY A REMOTE UNIT IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    在无线通信系统中由远程单元搜索的优先级

    公开(公告)号:WO0176311A3

    公开(公告)日:2002-02-21

    申请号:PCT/US0110468

    申请日:2001-03-30

    Applicant: QUALCOMM INC

    CPC classification number: H04W48/20

    Abstract: A method and apparatus for improving searching in a remote unit of a slotted mode, wireless, communication system. In a slotted mode communication system, the remote unit enters an "active state" during its assigned slot. While in the active state, a controller in the remote unit passes selected sets of search parameters to a search engine. The order that the searches are performed is based on the measured signal strength and the age of the measurement. The search engine performs searches using the selected sets of search parameters. Searching continues as long as the remote unit is in the active state. When the remote unit enters the inactive state, searching ceases. While in the inactive stage, the controller evaluates the results of the searches performed during the previous active state. During the next active state, the next sequence of searching is performed based on measured signal strength and the measurement age corresponding to the measurements made during the previous active state.

    Abstract translation: 一种用于改进在时隙模式,无线,通信系统的远程单元中的搜索的方法和装置。 在时隙模式通信系统中,远程单元在其分配的时隙期间进入“活动状态”。 在处于活动状态时,远程单元中的控制器将所选择的一组搜索参数传递给搜索引擎。 执行搜索的顺序是基于测量的信号强度和测量的年龄。 搜索引擎使用所选择的搜索参数集执行搜索。 只要远程单元处于活动状态,搜索继续。 当远程单元进入非活动状态时,搜索停止。 在非活动阶段,控制器评估在先前激活状态下执行的搜索结果。 在下一活动状态期间,基于测量信号强度和对应于在先前活动状态期间进行的测量的测量年龄来执行下一个搜索序列。

    EFFICIENT DETECTION OF GENERAL PAGING MESSAGES IN POOR SIGNAL TO NOISE ENVIRONMENTS

    公开(公告)号:CA2403996C

    公开(公告)日:2009-08-04

    申请号:CA2403996

    申请日:2001-03-30

    Applicant: QUALCOMM INC

    Inventor: BAYLEY GWAIN

    Abstract: A method of and an apparatus for reduc-ing the average power consumption in a remote unit in a wireless communication system. When a remote unit in a slotted mode communication system enters an ac-tive state, it receives a sequence of messages. One ele-ment of this sequence is a general paging message that command the remote unit to return to the inactive state immediately, thus conserving battery power. The gen-eral paging message is followed by several additional el-ements in the sequence. When the remote unit operates in a poor signal-to-noise ratio environment, for example, it may not receive the general paging message and may, thus, unnecessarily remain in the active state until the end of its assigned slot, wasting battery power. The invention determines whether the element received by the remote unit is a general paging message. If so, the remote unit enters the inactive mode. If not, the invention determines whether the element occurs after a general paging mes-sage in the sequence of messages. If so, the remote unit enters the inactive mode without waiting for the end of the assigned slot.

    PROCEDIMIENTO Y APARATO DE ENSAYO DE UN CANAL DE COMUNICACION DIGITAL CON TASAS DE TRANSMISION DE DATOS FIJAS O VARIABLES.

    公开(公告)号:ES2282996T3

    公开(公告)日:2007-10-16

    申请号:ES95942506

    申请日:1995-11-29

    Applicant: QUALCOMM INC

    Abstract: LA INVENCION SUMINISTRA UN SISTEMA Y UN METODO PARA COMPROBAR LA CALIDAD DE TRANSMISION DE LAS SEÑALES DENTRO DE UN SISTEMA DE COMUNICACIONES DIGITALES Y PUEDE INCORPORARSE DENTRO DE UN SISTEMA DE COMUNICACIONES DIGITALES, CELULARES EN EL CUAL LA INFORMACION ES INTERCAMBIADA SOBRE CANALES DE COMUNICACION DE ESPECTRO EXTENDIDO. UNA SECUENCIA DE PRUEBA DE LOS DATOS DIGITALES TRANSMITIDOS SOBRE EL CANAL DE COMUNICACION ES RECIBIDA EN LA ESTACION RECEPTORA, DENTRO DE LA CUAL TAMBIEN SE GENERA UNA REPLICA DE LA SECUENCIA DE PRUEBA DE LOS DATOS DIGITALES. ENTONCES SE DETERMINA LA EXACTITUD DE LA TRANSMISION SOBRE EL CANAL DE COMUNICACIONES COMPARANDO LA REPLICA DE LA SECUENCIA DE PRUEBA DE LOS DATOS DIGITALES CON LA SECUENCIA DE PRUEBA DE LOS DATOS RECIBIDOS SOBRE EL CANAL DE COMUNICACIONES. LA INVENCION PERMITE QUE LA SECUENCIA DE PRUEBA DE LOS DATOS DIGITALES SEA TRANSMITIDA A UNA DE UN CONJUNTO DE VELOCIDADES CONOCIDAS, ESTANDO DISPUESTA LA ESTACION RECEPTORA PARA IDENTIFICAR LA VELOCIDAD DE LOS DATOS ASOCIADA CON CADA SECUENCIA DE PRUEBA DE DATOS DIGITALES. PARA SIMULAR LA TRANSMISION DE, POR EJEMPLO, DATOS DE VOZ, EL SISTEMA PUEDA CONFIGURARSE DE MANERA QUE LA SECUENCIA DE PRUEBA DE DATOS DIGITALES SE GENERE DE ACUERDO CON UN PROCESO PSEUDO-ALEATORIO.

    19.
    发明专利
    未知

    公开(公告)号:AT322131T

    公开(公告)日:2006-04-15

    申请号:AT95901242

    申请日:1994-11-14

    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.

    Efficient detection of general paging massages in poor signal to noise environments

    公开(公告)号:HK1053567A1

    公开(公告)日:2003-10-24

    申请号:HK03105797

    申请日:2003-08-13

    Applicant: QUALCOMM INC

    Inventor: BAYLEY GWAIN

    Abstract: A method of and an apparatus for reducing the average power consumption in a remote unit in a wireless communication system. When a remote unit in a slotted mode communication system enters an active state, it receives a sequence of messages. One element of this sequence is a general paging message that command the remote unit to return to the inactive state immediately, thus conserving battery power. The general paging message is followed by several additional elements in the sequence. When the remote unit operates in a poor signal-to-noise ratio environment, for example, it may not receive the general paging message and may, thus, unnecessarily remain in the active state until the end of its assigned slot, wasting battery power. The invention determines whether the element received by the remote unit is a general paging message. If so, the remote unit enters the inactive mode. If not, the invention determines whether the element occurs after a general paging message in the sequence of messages. If so, the remote unit enters the inactive mode without waiting for the end of the assigned slot.

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