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    12.
    发明专利
    未知

    公开(公告)号：BR0101093A

    公开(公告)日：2001-11-06

    申请号：BR0101093

    申请日：2001-03-19

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： DEMETRESCU CRISTIAN ,  SAMARAS KONSTANTINOS ,  SAMUEL LOUIS GWYN ,  WU JIAN JUN ,  YAN RAN-HONG ,  SANDELL MAGNUS

    IPC: H04L12/28 ,  H04B7/26 ,  H04B14/04 ,  H04L12/56

    Abstract: In the GPRS, a method of decoding uplink status having reduced interleaving depth in a RLC/MAC block is proposed; for RT-EGPRS users, all of the uplink flag bits are provided in the first burst of the four bursts; and for EGPRS users, nine bits of the uplink status flags are provided in the first burst of the RLC/MAC block and the remaining bits in the next three bursts. On receiving the first nine bits, a mobile performs an autocorrelation to identify the USF whether it belongs to the EGPRS or to the RT-EGPRS group.

    14.
    发明专利
    未知

    公开(公告)号：DE602005005122T2

    公开(公告)日：2009-02-19

    申请号：DE602005005122

    申请日：2005-08-18

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： BATTAGLIA FREDERICK ,  SAMUEL LOUIS GWYN ,  SIZER THEODORE

    IPC: H04L12/28 ,  H04W36/14 ,  H04W76/02 ,  H04W76/06 ,  H04W80/00

    Abstract: The present invention provides a method is provided for soft vertical handovers. The method includes requesting a handover from a first wireless network that operates according to a first protocol to a second wireless network that operates according to a second protocol, the first protocol being different than the second protocol, via a first wireless telecommunication link that operates according to the first protocol. The method also includes forming, in response to the handover request, a second wireless telecommunications link according to the first and second protocols, the second wireless telecommunications link being concurrent with the first wireless telecommunication link. The method further includes dropping the first wireless telecommunications link after forming the second wireless telecommunications link.

    IMPROVEMENTS IN AND RELATING TO DATA TRANSMISSION
    19.
    发明专利
    IMPROVEMENTS IN AND RELATING TO DATA TRANSMISSION 未知

    公开(公告)号：CA2325129A1

    公开(公告)日：2001-06-10

    申请号：CA2325129

    申请日：2000-11-06

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： YAN RAN-HONG ,  ILAS CONSTANTIN ,  SAMARAS KONSTANTINOS ,  SOMERVILLE FIONA CLARE ANGHARA ,  SAMUEL LOUIS GWYN ,  WU JIAN JUN ,  DEMETRESCU CRISTIAN

    IPC: H04B7/26 ,  H04B7/15 ,  H04L12/28 ,  H04L12/56 ,  H04Q7/20 ,  H04Q7/22 ,  H04Q7/30 ,  H04Q7/38

    Abstract: A mobile telephone network operating general packet radio service includes a base station (2) and a group of mobile telephones (M1 to M4). The base station (2) includes a control unit (8) which generates a successio n of data packets which are transmitted along a common downlink to all the mobiles (Ml to M8). Each data packet includes a header section containing an uplink state fl ag identifying a first selected mobile, to poll that mobile and cause it to return a packet of data to the base station along a common uplink channel. The header also includes an uplink state flag identifying a second selected mobile and is accompanied by the identity of and time slot for a second auxiliary uplink channel for polling the second mobil e to cause the second mobile to return a packet of data to the base station along said auxiliary uplink channel thereby enabling the polling of at least two mobiles using the same data packet. The polling sequence produced by the control unit (8) ensures that each mobi le is polled twice during each polling cycle, once accompanied with the identity o f and time slot for a secondary auxiliary uplink channel and once without.

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