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Method and device of dynamic resource allocation in a wireless network

  • US 20050249114A1
  • Filed: 12/21/2004
  • Published: 11/10/2005
  • Est. Priority Date: 01/30/2004
  • Status: Active Grant
First Claim
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1. Method of dynamic transmission resource allocation in a wireless network comprising:

  • a plurality of Mobile Terminals or MTs each managing a given number of different data flows of Protocol Data Units or PDUs which are classified according to a set of predetermined flow types;

    a Radio Resource Management or RRM unit for allocating transmission resources on a per PDU basis;

    a plurality of schedulers, each being associated to a respective flow type and each carrying out a respective scheduling scheme according to a specific set of rules; and

    a selector for sharing said transmission resource among said MTs, said method comprising;

    said MTs or said RRM unit requesting transmission resource for transmission of pending PDUs by sending Request Resource or RR messages to said RRM unit each RR message including a flow type information;

    said RRM unit dispatching said RR messages to said associated schedulers based on said flow type information;

    each one of said associated schedulers electing one PDU of one data flow of said respective flow type as candidate for a next transmission resource allocation among said data flows of said respective flow type, independently from the other schedulers and based on said specific set of rules;

    said selector allocating transmission resource to one candidate chosen among said candidates as a function of a set of priority rules where a respective priority is assigned to each flow type;

    wherein the set of predetermined flow types comprises a first set of flow types assigned with comparatively higher priorities and a second set of flow types assigned with comparatively lower priorities;

    wherein the set of rules specific to a scheduler associated to a flow type belonging to said second set of flow types comprises a first subset of rules applied in case of error free transmission, and a second subset of rules, different from said first subset of rules applied in case of transmission errors;

    and wherein said second subset comprises a rule for reducing the bandwidth allocated to data flows belonging to said second set of flow types compared to the bandwidth allocated thereto according to said first subset of rules.

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