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公开(公告)号：JP2004104821A
公开(公告)日：2004-04-02
申请号：JP2003366104
申请日：2003-10-27
Applicant: Inmarsat Ltd , インマルサット リミテッド
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
CPC classification number: H04L1/1685 , H04B7/18523 , H04B7/18582 , H04L1/1809 , H04L1/187 , H04L1/1887 , H04L2001/0093
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for propagating data on a status of a user terminal in a mobile communication system from a central register to a plurality of local registers.
SOLUTION: Data on the status of a user 12 are simultaneously transmitted from a GLR-N 4 to a GLR-L 10 via a satellite 8 in an HDLC form. Each GLR-L 10 requests the retransmission of all HDLC frames which are not accurately received. The GLR-N 4 records a frame which is first transmitted among frames which are not confirmed by all the GLR-L 10 yet and when a new frame is corresponding to the outside of a range of a transmission window for the first transmitted frame, the transmission of the said frame is inhibited. The GLR-N 4 performs polling to the GLR-L 10 for the retransmission request, and the GLR-L 10 also transmits the request of no demand to the GLR-N 4. Even when a plurality of requests are transmitted for the same frame within predetermined time, the GLR-N 4 retransmits the frame just once.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：GB2357942A
公开(公告)日：2001-07-04
申请号：GB0106670
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4. The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period . When a new local register 10 enters the broadcast reception group, the network register 4 informs the new local register 10 which new frame will next be transmitted.
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公开(公告)号：GB2357941A
公开(公告)日：2001-07-04
申请号：GB0106667
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4. The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period.
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公开(公告)号：GB2357020A
公开(公告)日：2001-06-06
申请号：GB0106662
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4. The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period.
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公开(公告)号：GB2357942B
公开(公告)日：2001-08-22
申请号：GB0106670
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4 . The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period. When a new local register 10 enters the broadcast reception group, the network register 4 informs the new local register 10 which new frame will next be transmitted. The number of bits used for frame sequence numbers is greater than that defined in the HDLC protocols.
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Patent Agency Ranking
公开(公告)号：GB2357678B
公开(公告)日：2001-08-22
申请号：GB0106660
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4 . The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period. When a new local register 10 enters the broadcast reception group, the network register 4 informs the new local register 10 which new frame will next be transmitted. The number of bits used for frame sequence numbers is greater than that defined in the HDLC protocols.
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公开(公告)号：GB2357678A
公开(公告)日：2001-06-27
申请号：GB0106660
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4. The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period.
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公开(公告)号：GB2357940B
公开(公告)日：2001-08-22
申请号：GB0106664
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4 . The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period. When a new local register 10 enters the broadcast reception group, the network register 4 informs the new local register 10 which new frame will next be transmitted. The number of bits used for frame sequence numbers is greater than that defined in the HDLC protocols.
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公开(公告)号：GB2357941B
公开(公告)日：2001-08-22
申请号：GB0106667
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4 . The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period. When a new local register 10 enters the broadcast reception group, the network register 4 informs the new local register 10 which new frame will next be transmitted. The number of bits used for frame sequence numbers is greater than that defined in the HDLC protocols.
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公开(公告)号：GB2357020B
公开(公告)日：2001-08-22
申请号：GB0106662
申请日：1996-07-31
Applicant: INMARSAT LTD
Inventor： KAWAI NOBUYUKI , WONG HOK SHUEN , MCTIFFIN MICHAEL JOHN , RANDALL DAVID
Abstract: Data relating to the status of users 12 in a mobile communications system is broadcast via satellite 8 from a network register 4 to local registers 10 in an HDLC format. Each of the local registers 10 requests retransmission of any HDLC frames which are incorrectly received. The network register 4 records the earliest transmitted frame not yet acknowledged by all of the local registers and inhibits transmission of new frames if they fall outside a transmission window relative to the earliest transmitted frame. The network register 4 polls the local registers 10 for retransmission requests and the local registers 10 also send unsolicited requests to the network register 4 . The network register 4 only retransmits a frame once if multiple requests for that frame are transmitted within a predetermined period. When a new local register 10 enters the broadcast reception group, the network register 4 informs the new local register 10 which new frame will next be transmitted. The number of bits used for frame sequence numbers is greater than that defined in the HDLC protocols.
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