Method and system of improved resource allocation in wireless communication network
The present invention provides a method and system for improved Physical-layer processing for Physical uplink control channel (PDCCH) resource allocation mechanism for high speed wireless communication network. The method includes estimation of PDCCH resources with the default resource configuration; able to calculate the operational parameters dynamically; calculates the PDCCH candidates using the self-generated operation parameters; configure the system with the PDCCH resources to make it operational; and able to correct the estimation values of the PDCCH candidates using the feedback. Detailed methods for each of the above steps are also disclosed.
1. A system facilitating improved Physical downlink control channels (PDCCH) resource allocation in a wireless network, said system comprising:
one or more user equipment communicatively coupled to the wireless network, said wireless network comprising:
a plurality of base stations, one or more packet gateway nodes;
a scheduler, said scheduler is configured to determine a user traffic data queued in the system;
a radio resource control unit (RRC) operatively coupled to any or a combination of one or more said base stations, said one or more packet gateway nodes and the scheduler, said RRC comprising a processor that executes a set of executable instructions that are stored in a memory, upon which execution, the processor causes the system to:
initialise an improved PDCCH resource calculation (IPRC) unit operatively coupled to the RRC;
upon initialization, receive by the IPRC unit, from the one or more base stations, one or more data packets pertaining to parameters associated with one or more PDCCH resources that require allocation in the wireless network to the one or more user equipment getting registered with the system through the respective packet gateway node;
extract, by the IPRC unit, a first set of attributes pertaining to one or more parameters associated with the one or more PDCCH resources;
extract, by the IPRC unit, a second set of attributes from the scheduler, the second set of attributes pertaining to the user traffic data queued in the system that causes blocking of the one or more PDCCH resources;
calculate, by the IPRC unit, from the extracted first and second set of attributes, a plurality of operation parameters and the one or more PDCCH resources to be allocated; and
update, by the IPRC unit, the number of the one or more PDCCH resources to the RRC and the scheduler.
2. The system as claimed in claim 1 , wherein the IPRC unit receives a combination of periodic performance feedback from the scheduler and a constant usage periodic feedback from the RRC to update the IPRC unit, wherein the combination of periodic performance feedback from the scheduler and the constant usage periodic feedback from the RRC correct a plurality of estimated values during a steady state operation of the system.
3. The system as claimed in claim 1 , wherein the IPRC unit optimizes the calculation of the one or more PDCCH resources by a set of predefined instructions.
4. The system as claimed in claim 1 , wherein during the initialization of the IPRC unit, the IPRC unit interacts with a configuration database coupled to the system through a configuration interface to get default configuration parameters of the system during a start-up of the system.
5. The system as claimed in claim 1 , wherein the IPRC unit stores the operational parameters and the default configuration parameters of the system.
6. The system as claimed in claim 1 , wherein the IPRC is in a reconfiguration mode, when there is change in the default system configuration parameters, wherein upon change in the default system configuration parameters, the IPRC receives configuration information through a communication interface coupled to the system.
7. The system as claimed in claim 6 , wherein the IPRC in the reconfiguration mode is configured to:
take a plurality of latest configuration parameters from the configuration database;
configure the plurality of latest parameters in the IPRC unit; and
store the latest configuration parameters in a local copy in a memory unit coupled to the IPRC unit.
8. The system as claimed in claim 1 , wherein if the IPRC is not in the start-up mode or in the re-configuration mode, then the IPRC unit loads a local copy of the configuration parameters of the system into the memory unit.
9. The system as claimed in claim 1 , wherein depending on a geographical deployment area, the IPRC unit accepts the default configuration parameters of the system.
10. The system as claimed in claim 1 , wherein the IPRC unit dynamically generates the operational parameters for PDCCH resource calculation for a plurality of aggregation levels based on the system variables and conditions.
11. The system as claimed in claim 1 , wherein the IPRC unit considers a plurality of system level parameters and estimated user channel condition distribution in order to calculate the PDCCH resources during the start-up of the system.
12. The system as claimed in claim 1 , wherein the IPRC unit checks whether a maximum value of the PDCCH resources are crossed, wherein if the maximum value of the PDCCH resources are crossed, then the IPRC unit decreases a Control Channel Element (CCE) to fit into the maximum value of the PDCCH resources.
13. A method facilitating improved Physical downlink control channels (PDCCH) resource allocation in a wireless network, said method comprising:
initialising an improved PDCCH resource calculation (IPRC) unit operatively coupled to a radio resource control unit (RRC) operatively coupled to any or a combination of one or more said base stations, said one or more packet gateway nodes and the scheduler;
upon initialization, receiving by the IPRC unit, from one or more base stations, one or more data packets pertaining to parameters associated with one or more PDCCH resources that require allocation in the wireless network to one or more user equipment getting registered with the system through a respective packet gateway node;
extracting, by the IPRC unit, a first set of attributes pertaining to one or more parameters associated with the one or more PDCCH resources;
extracting, by the IPRC unit, a second set of attributes from the scheduler, the second set of attributes pertaining to the user traffic data queued in the system that causes blocking of the one or more PDCCH resources;
calculating, by the IPRC unit, from the extracted first and second set of attributes, a plurality of operation parameters and the one or more PDCCH resources to be allocated; and
updating, by the IPRC unit, the number of the one or more PDCCH resources to the RRC and the scheduler.
14. The method as claimed in claim 13 , wherein the method further comprises:
receiving by the IPRS unit, a combination of periodic performance feedback from the scheduler and a constant usage periodic feedback from the RRC to update the IPRC unit, wherein the combination of periodic performance feedback from the scheduler and the constant usage periodic feedback from the RRC correct a plurality of estimated values during a steady state operation of the system.
15. The method as claimed in claim 13 , wherein the method further comprises:
optimizing, by the IPRC unit, the calculation of the one or more PDCCH resources by a set of predefined instructions.
16. The method as claimed in claim 13 , wherein the method further comprises:
interacting, by the IPRC unit, with a configuration database coupled to the system through a configuration interface to get default configuration parameters of the system during a start-up of the system.
17. The method as claimed in claim 13 , wherein the method further comprises:
storing, by the IPRC unit, the operational parameters and the default configuration parameters of the system.
18. The method as claimed in claim 13 , wherein the method further comprises:
receiving by the IPRC unit, a configuration information through a communication interface coupled to the system upon change in the default system configuration parameters when the IPRC unit is in a reconfiguration mode and there is change in the default system configuration parameters.
19. The method as claimed in claim 18 , wherein the method in the reconfiguration mode further comprises:
taking a plurality of latest configuration parameters from the configuration database;
configuring the plurality of latest parameters in the IPRC unit; and
storing the latest configuration parameters in a local copy in a memory unit coupled to the IPRC unit.
20. The method as claimed in claim 13 , wherein the method further comprises:
loading, by the IPRC unit, a local copy of the configuration parameters of the system into the memory unit if the IPRC is not in the start-up mode or in the re-configuration mode.