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Methods and apparatus for uplink macro-diversity in packet-switched cellular networks

  • US 8,665,734 B2
  • Filed: 05/05/2003
  • Issued: 03/04/2014
  • Est. Priority Date: 05/06/2002
  • Status: Expired due to Fees
First Claim
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1. A method of operating a wireless terminal, comprising:

  • maintaining a plurality of communications connections between said wireless terminal and at least two different receivers connected to a single network node, wherein the single network node is an Internet Protocol (IP) node, and wherein a communication connection exists between said wireless terminal and each receiver;

    monitoring channel conditions on the plurality of communications connections;

    dynamically determining a packet size to be used as a function of the monitored channel conditions;

    changing the length of at least one packet using IP fragmentation to generate portions of packets of a first application in response to a change in the monitored channel conditions, the portions of packets being transmitted over at least one of the plurality of communications connections;

    selecting a first communications connection for transmitting at least some of the portions of packets of the first application, as a function of said monitored channel conditions, from said plurality of communications;

    selecting a second communications connection for transmitting at least some of the portions of packets of the first application, as a function of said monitored channel conditions, from said plurality of communications connections;

    transmitting a first portion of the at least one packet of the first application using the first selected communications connection; and

    transmitting a second portion of the at least one packet of the first application using the second selected communications connection.

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