中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

213 records (took 0.029 seconds)

    41.
    发明专利
    未知

    公开(公告)号：DE602004010851D1

    公开(公告)日：2008-01-31

    申请号：DE602004010851

    申请日：2004-05-14

    Applicant: ERICSSON TELEFON AB L M

    Inventor： WIEMANN HENNING ,  SACHS JOACHIM ,  HERWONO IAN

    IPC: H04W36/02 ,  H04W36/18

    Abstract: A method and devices for performing a handover of a data unit based communication that involves a sequence of data units from a first connection (51) between a first sender (10) and a receiver (4) to a second connection (52) between a second sender (20) and said receiver (4), which comprises indicating to the receiver (4) a reference data unit among data units provided to both the first sender (10) and the second sender as a part of the handover, and where the receiver, based on the reference data unit, keeps a record for identifying such data units among those data units provided to both the first sender (10) and the second sender (20) that were sent over the first connection (51) and successfully received by the receiver (4), prior to the communication having been passed to the second communication (52).

    42.
    发明专利
    未知

    公开(公告)号：AT370603T

    公开(公告)日：2007-09-15

    申请号：AT04711368

    申请日：2004-02-16

    Applicant: ERICSSON TELEFON AB L M

    Inventor： MAGNUSSON PER ,  SACHS JOACHIM ,  VORWERK MARC

    IPC: H04L45/74

    Abstract: A data unit processing entity 4 is described, which has a decision part 41 for setting a forwarding address FA on the basis of an identifying address in a received data unit, by referring to decision data stored in a decision data memory 42. A management part 43 is provided, which is arranged to provide a network control function 51 with access to the decision data in the decision data memory 42, in order to change said decision data, independently of any access given to mobile nodes.

    43.
    发明专利
    未知

    公开(公告)号：DE60309566T2

    公开(公告)日：2007-09-06

    申请号：DE60309566

    申请日：2003-01-30

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LUDWIG REINER ,  MEYER MICHAEL ,  SACHS JOACHIM ,  WAGER STEFAN

    IPC: H04L1/16 ,  H04L1/18 ,  H04L1/00 ,  H04L29/08

    Abstract: A method and device for handling received data units at the receiving peer of a predetermined data unit exchange protocol at a given layer is described, where said method and device carry out a limited ARQ mechanism for received data units, and are characterized by providing the possibility of storing corrupted copies of received data units, and providing a data unit to an upward release handler on the basis of one or more stored corrupted copies of a given data unit after a triggering event terminating the operation of the retransmission request procedure for the given data unit.

    MEANS AND METHODS FOR IMPROVING THE HANDOVER CHARACTERISTICS OF RADIO ACCESS NETWORKS
    45.
    发明专利
    MEANS AND METHODS FOR IMPROVING THE HANDOVER CHARACTERISTICS OF RADIO ACCESS NETWORKS 未知

    公开(公告)号：CA2614287A1

    公开(公告)日：2007-02-01

    申请号：CA2614287

    申请日：2005-07-25

    Applicant: ERICSSON TELEFON AB L M

    Inventor： HERWONO IAN ,  SACHS JOACHIM

    IPC: H04L12/28 ,  H04W36/02 ,  H04W36/08

    Abstract: The invention provides a method for assisting handover of a communication session associated with a UT (240) from a first radio access point, AP1, (210) to a second radio access point, AP2, (220) in a radio access network, said method to be carried out by said AP1 (210) and comprising the steps of: - receiving a handover intention notify message comprising a session identifier identifying said session and indicating that said UT (240) intends to perform a session handover, - assigning said session a buffer memory space (213) in a memory (211) of said AP1 (210), - buffering downlink data packets addressed to said UT (240) in said buffer memory (213) as a response on receiving said handover intention notify message. The invention further provides a UT (240), an AP1, (210), AP2, (220), an AR, (250) and software program/s co-operating and/or realising the method according to the invention. The invention provides a smoother handover.

    47.
    发明专利
    未知

    公开(公告)号：DE60113263T2

    公开(公告)日：2006-06-14

    申请号：DE60113263

    申请日：2001-06-02

    Applicant: ERICSSON TELEFON AB L M

    Inventor： SACHS JOACHIM ,  WAGER STEFAN ,  RATHONYI BELA

    IPC: H04L29/06 ,  H04L12/56 ,  H04L29/08 ,  H04W28/04 ,  H04W28/14 ,  H04W72/12

    Abstract: In a method for improving the transmission efficiency in a communication system with a layered protocol stack, data packets are processed on an upper protocol layer. Data packets are forwarded to a lower protocol layer for transmission and the transmission is performed with variable channel access delays. The upper protocol layer is notified by the lower protocol layer when a transmission is started to allow a synchronization of timers in the upper protocol layer. If a layer performs a scheduling of data packets for the transmission, a rescheduling can be performed in addition during a channel access delay. Devices and software programs embodying the invention are also described.

Patent Agency Ranking