Method and apparatus for radio power allocation to a channel during channel assignment based on current system conditions
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMartin Nyström, Kjell Klasson
Life of this patent
Estimating the term…
Abstract
In a method and apparatus for power allocation used by a BTS in a mobile telephone system, an available radio power is distributed between a plurality of carriers, a request for a channel for communication (201a,201b,201c) is received. A required amount of power is requested from a power bank (202), and a check if the required amount of power is available (203) is performed. If the power is available it is allocated (204, 205), and the connection is established (206).
Claims11
A method of power allocation among carriers within a Multiple Carrier Power Amplifier (MCPA), the method comprising the steps of:
- receiving channel requests for establishing channels over a plurality of carriers in a mobile telephone system;
- requesting from a power bank a respective amount of power for establishing each of the channels, the power bank representing a maximum amount of power available in the MCPA on a time slot basis;
- determining for each channel request if the respective amount of power is available in the power bank by
- determining if the respective amount of power is available in any of a number of time slots and, if not;
- determining if it is possible to perform at least one handover of at least one established channel between said time slots for making available said respective amount of power in a time slot, and if so;
- performing said at least one handover between the time slots, wherein corresponding power release and allocation in the power bank for the time slots are performed;
- allocating the respective amount of power from the power bank to each of the channels, and
- establishing the channels using the respectively allocated channel powers, wherein the mobile system uses time division multiple access (TDMA) technology and the power bank is maintained on a time slot basis.
A radio frequency Multiple Carrier Power Amplifier (MCPA) apparatus comprising:
- means for receiving a plurality of channel requests;
- defining
- means for requesting from a power bank a respective amount of power for establishing channels over a plurality of carriers in a mobile telephone system for each of the plurality of channel requests, the power bank representing a maximum amount of power available in the MCPA on a time slot basis;
- means for determining for each of the plurality of channel requests if the respective amount of power Is available in the power bank to establish the channels, including
- means for determining if the required amount of power is available in any of a number of time slots;
- means for determining if it is possible to perform at least one handover of at least one established channel between said time slots for making available said required amount of power in a time slot when it is determined that the required amount of power is not available in any of the number of time slots;
- and
- means for performing said at least one handover between the time slots when it is determined that it is possible to perform at least one handover to make available said required amount of power, wherein corresponding power release and allocation to and from the power bank for the time slots are performed;
- means for allocating the respective amount of power from the power bank to each of the channels;
- and
- means for establishing the channels using the respectively allocated channel powers.
Dependencies are inferred from the claim text.