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AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsMichael Meyer, Magnus Stattin, Janne Peisa, Ghyslain Pelletier, Mats Fredrik Sägfors, Per Johan Torsner, Henning Wiemann
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In a wireless communication network where base stations receive protocol data units (PDUs) from mobile stations for decompression and deciphering for ordered, sequential transfer as service data units (SDUs) to an associated core network, the teachings presented herein provide a method of supporting seamless handover of a mobile station from a source base station to a target base station. By way of example, the teachings herein apply to a network based on the E-UTRA specifications, as promulgated by the 3GPP. However, that example is non-limiting, as the teachings herein apply to any network that employs in-sequence data delivery and duplicate data detection at handover. Broadly, the source base station forwards out-of-sequence SDUs and corresponding sequence number information to the target base station in support of seamless handover, and the target base station uses that information to request retransmissions as needed for packet reordering.
A method, in a wireless communication network where base stations receive protocol data units from mobile stations for ordered, sequential transfer as service data units to an associated core network, of supporting seamless handover of a mobile station from a source base station to a target base station, the method comprising:
A target base station supporting seamless handover of a mobile station from a source base station to the target base station, in a wireless communication network where base stations receive protocol data units from mobile stations for ordered, sequential transfer as service data units to an associated core network, the target base station comprising:
A method of supporting seamless handover of a mobile station from a source base station to a target base station, in a wireless communication network where base stations receive protocol data units from mobile stations for ordered, sequential transfer as service data units to an associated core network, the method comprising:
A method in a mobile station in a wireless communication network, wherein the mobile station transmits protocol data units to a base station and the base station transfers corresponding service data units to an associated core network, the mobile station configured to support seamless handover from a source base station to a target base station, the method comprising:
Dependencies are inferred from the claim text.