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 Software reconfiguration of communications apparatus

Details
Inventors: Bucknell, Paul; Pitchers, Stephen M.;
Assignee: Koninklijke Philips Electronics N.V. (Eindhoven, NL)
Primary Examiner: Kincaid; Lester G.
Assistant Examiner: Cho; Un C
Attorney, Agent or Firm: Halajian; Dicran

A method of reconfiguring the software interface in software defined radios in which when a transmitting station (PS) sends a reconfiguration software message to a receiving station (SS), the receiving station responds with a message giving an estimated time duration for carrying-out the reconfiguration of its software. The transmitting station listens for the estimated time duration for a message which confirms that the receiving station has been successfully reconfigured and commences normal communications using the new configuration. The estimated time duration may be computed using indicia present in the reconfiguration software message.

DETAILED DESCRIPTION What is claimed is: 1.
A method of reconfiguring software in a communications system, the method comprising: a first communications station transmitting a software reconfiguration message to a second communications station; the software reconfiguration message including indicia which is useable by the second station to estimate how long it will take to reconfigure itself; the second station receiving the message and using the indicia estimates its reconfiguration time; the second station sending a message giving an indication of the reconfiguration time to the first station; and the first station, in response to determining the reconfiguration time, waiting until after the time has elapsed before using the reconfigured software in communication with the second station.
2.
The method as claimed in claim 1, further comprising: the second station storing the maximum time required for reconfiguration, wherein the indicia sent in the software reconfiguration message is used to determine what proportion of that time will be required to implement the reconfiguration.
3.
The method as claimed in claim 2, wherein the maximum reconfiguration time of the second station and fractions of the maximum reconfiguration time are stored in a ROM and the indicia in the software reconfiguration message are used to provide a ROM address.
4.
The method as claimed in claim 1, further comprising: the second station storing estimates of reconfiguration times of each software layer of a plurality of software layers, wherein the indicia in the software reconfiguration message relate to a particular software layer to be reconfigured.
5.
The method as claimed in any one of claims 1 to 4, wherein, for a plurality of second stations, at least two second stations have different maximum reconfiguration times.
6.
The method as claimed in any one of claims 1 to 4, further comprising: the first station reconfiguring its configuration software relating to the software reconfiguration message by the expiry of the reconfiguration time


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