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Packet ordering method and apparatus in a mobile communication network employing hierarchical routing with data packet forwarding

  • US 20040131040A1
  • Filed: 07/16/2003
  • Published: 07/08/2004
  • Est. Priority Date: 07/16/2002
  • Status: Active Grant
First Claim
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1. A data packet ordering method in a mobile communication network employing hierarchical routing with data packet forwarding comprising the following steps:

  • a) providing at least one data flow comprising a predefined sequence of data packets, b) forwarding at least one of said data packets of the sequence via a first network element (RNC_OLD) over a first transmission path to a user equipment, whereby a part of the data packets are temporarily buffered in the first network element (RNC_OLD) during transmission, c) establishing a second transmission path, while forwarding the data packet sequence, such that the remaining data packets of the sequence not yet transmitted over the first path are forwarded via a second network (RNC_NEW) element, d) forwarding of the data packets buffered in the first network element (RNC_OLD) to the second network (RNC_NEW) element for providing all data packets comprised by the data packet sequence to the user equipment, e) receiving and ordering of the data packets within said second network element (RNC_NEW) according to the packet data priority given by the data packet sequence, f) forwarding the ordered data packets to the user equipment (UE).

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