Power control in a wireless communication system

An inter-radio-access-technology device comprising:

• an interface for communicating over a wireless cellular network;
• first storage means storing code for performing operations handling communications via said interface according to a plurality of different radio access technologies;
• second storage means storing definitions of plurality of different instruction sets, each set being configured for performing operations according to a respective one of the radio access technologies;
• a processor arranged to execute said code, the processor being operable to execute code using any selected one of said instruction sets by reference to said second storage means;
• and
• selection means operable to dynamically switch between said radio access technologies, by selecting corresponding code for execution by the processor and selecting the corresponding instruction set for use in execution of the selected code.

A method of dynamically switching between radio access technologies in a processor, the method comprising:

• selecting a first instruction set corresponding to the first radio access technology;
• executing code on a processor using said first instruction set, to perform operations handling communications over a wireless cellular network according to the first radio access technology;
• switching to a second radio access technology;
• selecting a second instruction set corresponding to the second radio access technology;
• and
• executing code on said processor using said second instruction set, to perform operations handling communications over a wireless cellular network according to the second radio access technology.

A computer program product for dynamically switching between radio access technologies, the program comprising code which when executed by a processor performs the steps of:

• selecting a first instruction set corresponding to the first radio access technology;
• executing code using said first instruction set, to perform operations handling communications over a wireless cellular network according to the first radio access technology;
• switching to a second radio access technology;
• selecting a second instruction set corresponding to the second radio access technology;
• and
• executing code using said second instruction set, to perform operations handling communications over a wireless cellular network according to the second radio access technology.

An inter-radio-access-technology device comprising:

• an interface for communicating over a wireless cellular network;
• and
• a processor arranged to execute code for performing operations handling communications via said interface according to a plurality of different radio access technologies, the processor being operable to execute code using any selected one of a plurality of different instruction sets, each set being configured for performing operations according to a respective one of the radio access technologies;
• wherein the device is operable to dynamically switch between said radio access technologies, by selecting corresponding code for execution by the processor and selecting the corresponding instruction set for use in execution of the selected code.