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公开(公告)号：HK1037446A1
公开(公告)日：2002-02-08
申请号：HK01108139
申请日：2001-11-19
Applicant: ERICSSON TELEFON AB L M
Inventor： HAARTSEN JACOBUS
Abstract: An uncoordinated frequency hopping cellular system includes a mobile unit and a number of base stations. The mobile unit determines which base stations are in a geographical location defined by a location of the mobile unit. This determination is made by transmitting one or more inquiry messages, and receiving response information transmitted by responding base stations. The mobile unit then selects, for use by the mobile unit, one of the base stations from the set of base stations. Each of the base stations receives at least one of the inquiry messages, and transmits the response information to the mobile unit in response to the at least one received inquiry message. The mobile unit determines synchronization information from the response information, and uses this to establish communication with the selected base station.
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公开(公告)号：AU7056801A
公开(公告)日：2002-01-02
申请号：AU7056801
申请日：2001-06-12
Applicant: ERICSSON TELEFON AB L M
Inventor： WILHELMSSON LEIF , HAARTSEN JACOBUS , PERSSON JOAKIM , DELLIEN OLOF
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公开(公告)号：AU5689101A
公开(公告)日：2001-11-26
申请号：AU5689101
申请日：2001-04-26
Applicant: ERICSSON TELEFON AB L M
Inventor： MATTISSON SVEN , BRISTOW ROBERT , HAARTSEN JACOBUS
Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.
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公开(公告)号：TR200100973T2
公开(公告)日：2001-10-22
申请号：TR200100973
申请日：1999-10-01
Applicant: ERICSSON TELEFON AB L M
Inventor： HAARTSEN JACOBUS
Abstract: Establishing a connection between a paging unit and a standby unit in a channel hopping communications system includes activating the standby unit for an activation time period out of every standby time period. During each activation time period, the standby unit monitors a selected channel for receipt of a paging message. The selected channel is selected from a plurality of channels, and, for each subsequent activation time period, the selected channel is a subsequent one of the plurality of channels as specified by a hopping sequence and an internal clock. A page train is repeatedly transmitted from the paging unit to the standby unit, until a response is received from the standby unit. Each page train includes a plurality of paging messages, each paging message being transmitted on a different one of a subset of the plurality of channels. Selection of a page train for transmission by the paging unit may be based on an estimate of the standby unit's internal clock. The generation of page trains can be further optimized for those cases in which more than two page trains will be transmitted. The purpose of the optimization is to generate page trains that, when transmitted, are most likely to elicit an early response from the paged unit.
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公开(公告)号：BR9908969A
公开(公告)日：2000-12-19
申请号：BR9908969
申请日：1999-03-02
Applicant: ERICSSON TELEFON AB L M
Inventor： HAARTSEN JACOBUS , MATTISSON SVEN
Abstract: A short-range radio transmitter of a communication device comprising a short-range radio and a long-range radio is controlled to delay packets which are scheduled to be transmitted at the same time as a long-range transmitter of the long-range radio commences or discontinues to transmit. A frequency synthesizer of the short-range radio is thereby not affected by a change in the power supply voltage which otherwise occurs at these moments due to transmission with high power by the long-range transmitter.
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Patent Agency Ranking
公开(公告)号：BR9909054A
公开(公告)日：2000-12-05
申请号：BR9909054
申请日：1999-03-19
Applicant: ERICSSON TELEFON AB L M
Inventor： MATTISSON SVEN , HAARTSEN JACOBUS
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公开(公告)号：SE0001821D0
公开(公告)日：2000-05-18
申请号：SE0001821
申请日：2000-05-18
Applicant: ERICSSON TELEFON AB L M
Inventor： MATTISSON SVEN , HAARTSEN JACOBUS , BRISTOW ROBERT
Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.
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公开(公告)号：HK1018671A1
公开(公告)日：1999-12-30
申请号：HK99103603
申请日：1999-08-19
Applicant: ERICSSON TELEFON AB L M
Inventor： HAARTSEN JACOBUS
IPC: H04L20060101 , H04B1/7075 , H04L7/00 , H04L7/04
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公开(公告)号：AU3857099A
公开(公告)日：1999-10-25
申请号：AU3857099
申请日：1999-04-01
Applicant: ERICSSON TELEFON AB L M
Inventor： HAARTSEN JACOBUS
Abstract: An uncoordinated frequency hopping cellular system includes a mobile unit and a number of base stations. The mobile unit determines which base stations are in a geographical location defined by a location of the mobile unit. This determination is made by transmitting one or more inquiry messages, and receiving response information transmitted by responding base stations. The mobile unit then selects, for use by the mobile unit, one of the base stations from the set of base stations. Each of the base stations receives at least one of the inquiry messages, and transmits the response information to the mobile unit in response to the at least one received inquiry message. The mobile unit determines synchronization information from the response information, and uses this to establish communication with the selected base station.
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公开(公告)号：CA2327084A1
公开(公告)日：1999-10-14
申请号：CA2327084
申请日：1999-04-01
Applicant: ERICSSON TELEFON AB L M
Inventor： HAARTSEN JACOBUS
Abstract: An uncoordinated frequency hopping cellular system includes a mobile unit an d a number of base stations. The mobile unit determines which base stations ar e in a geographical location defined by a location of the mobile unit. This determination is made by transmitting one or more inquiry messages, and receiving response information transmitted by responding base stations. The mobile unit then selects, for use by the mobile unit, one of the base statio ns from the set of base stations. Each of the base stations receives at least o ne of the inquiry messages, and transmits the response information to the mobil e unit in response to the at least one received inquiry message. The mobile un it determines synchronization information from the response information, and us es this to establish communication with the selected base station.
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