System and method for hybrid schemes of MIMO mode decision

1. A system for a hybrid scheme of mode decision in a network having a plurality of mobile stations (MS) communicably coupled to a base station (BS), the system comprising:

a mode decision module associated with the BS, the mode decision module comprising one or more processors configured to:

select a first mode configuration for use during transmission of a first communication from the base station; and

receive first feedback information comprising a first mode recommendation and first channel information from at least one of the plurality of mobile stations;

wherein the mode decision module includes:

a state identification sub-module comprising one or more processors to identity a first system state of the first communication based at least in part on the first channel information; and

a state transition sub-module comprising one or more processors to determine whether to transition from a prior system state to the first system state based on one or more transition conditions, and transition from the prior system state to the first system state,

wherein the one or more processors of the mode decision module are further configured to:

determine whether to use the first mode recommendation based at least in part on the first system state and satisfaction of at least one of the one or more transition conditions; and

responsive to the determination, configure a second communication using a second mode configuration selected between a BS-derived mode based upon system-level information and an MS-mode recommendation based upon channel information so as to adaptively change the system state as channel condition or network condition change over time.

2. The system of claim 1 , wherein the first mode configuration comprises one or more of: a Multiple-Input-Multiple-Output (MIMO) Mode or a Modulation Coding Scheme (MCS) level.

3. The system of claim 1 , wherein the one or more processors of the mode decision module are further configured to:

determine that the first mode recommendation is to be used; and

select the MS-mode recommendation to be used for the second mode configuration, wherein the first mode recommendation is same as the MS-mode recommendation.

4. The system of claim 1 , wherein the one or more processors of the mode decision module are further configured to:

determine that the first mode recommendation is not to be used; and

select the BS-derived mode configuration to be used for the second mode configuration.

5. The system of claim 1 , wherein the first channel information comprises at least two factors that are used to identify the first system state.

6. The system of claim 5 , wherein the at least two factors comprise a combination of at least two of: a Physical Carrier to Interference and Noise Ratio (PCINR), a Burst Error Rate (BuER), or a channel correlation (Corr).

7. The system of claim 1 , wherein the first channel information comprises a single factor that is used to identify the first system state.

8. The system of claim 7 , wherein the single factor is a channel correlation (Corr).

9. The system of claim 1 , wherein the one or more processors of the mode decision module are further configured to:

receive second feedback information comprising a second mode recommendation and second channel information;

identity a second system state of the second communication based at least in part on the second channel information;

determine whether to use the second mode recommendation for a third communication based at least in part on the second system state; and

configure the third communication using a third mode configuration based on the determination whether to use the second mode recommendation.

10. The system of claim 1 , wherein the state transition module comprising one or more processors is further configured to:

identity the one or more transition conditions corresponding to the prior system state for a prior communication before the first communication, wherein the one or more transition conditions comprise at least one transition rule that defines whether to transition the prior system state to the first system state.

11. The system of claim 10 , the one or more processors of the state transition module further configured to use the at least one transition rule to compare a prior channel information with the first channel information to determine whether the prior system state is to be transitioned to the first system state.

12. The system of claim 1 , wherein the network is a WIMAX network.

13. A base station for a hybrid scheme of mode decision in a network having a plurality of mobile stations (MS) communicably coupled to the base station (BS), the base station comprising:

a mode decision module associated with the BS, the mode decision module comprising one or more processors configured to:

select a first mode configuration for use during transmission of a first communication from the BS; and

receive first feedback information comprising a first mode recommendation and first channel information from at least one of the plurality of MS;

wherein the mode decision module includes:

a state identification sub-module comprising one or more processors to identity a first system state of the first communication based at least in part on the first channel information; and

a state transition sub-module comprising one or more processors to determine whether to transition from a prior system state to the first system state based on one or more transition conditions, and transition from the prior system state to the first system state,

wherein the one or more processors of the mode decision module are further configured to:

determine whether to use the first mode recommendation based at least in part on the first system state and satisfaction of at least one of the one or more transition conditions; and

responsive to the determination, configure a second communication using a second mode configuration selected between a BS-derived mode based upon system-level information and an MS-mode recommendation based upon channel information so as to adaptively change the system state as channel condition or network condition change over time.

14. A mode decision device for a hybrid scheme of mode decision in a network having a plurality of mobile stations (MS) communicably coupled to a base station (BS), the mode decision device comprising:

one or more processors configured to:

select a first mode configuration for use during transmission of a first communication from the BS; and

receive first feedback information comprising a first mode recommendation and first channel information from at least one of the plurality of MS;

a state identification sub-module comprising one or more processors to identity a first system state of the first communication based at least in part on the first channel information; and

a state transition sub-module comprising one or more processors to determine whether to transition from a prior system state to the first system state based on one or more transition conditions, and transition from the prior system state to the first system state,

wherein the one or more processors of the mode decision device are further configured to:

determine whether to use the first mode recommendation based at least in part on the first system state and satisfaction of at least one of the one or more transition conditions; and

responsive to the determination, configure a second communication using a second mode configuration selected between a BS-derived mode based upon system-level information and an MS-mode recommendation based upon channel information so as to adaptively change the system state as channel condition or network condition change over time.

15. A computer-implemented method for a hybrid scheme of mode decision in a network having a plurality of mobile stations (MS) communicably coupled to a base station (BS), the method comprising:

selecting, by the base station, a first mode configuration for use during transmission of a first communication from the base station;

receiving, by the base station, first feedback information comprising a first mode recommendation and first channel information from at least one of the plurality of MS;

identifying, by the base station, a first system state of the first communication based at least in part on the first channel information;

determining, by the base station, whether to transition from a prior system state to the first system state based on one or more transition conditions, and transitioning from the prior system state to the first system state;

determining, by the base station, whether to use the first mode recommendation based at least in part on the first system state and satisfaction of at least one of the one or more transition conditions; and

responsive to the determination, configuring, by the base station, a second communication using a second mode configuration selected between a BS-derived mode based upon system-level information and an MS-mode recommendation based upon channel information so as to adaptively change the system state as channel condition or network condition change over time.

16. The computer-implemented method of claim 15 , wherein the first mode configuration comprises one or more of: a Multiple-Input-Multiple-Output (MIMO) Mode or a Modulation Coding Scheme (MCS) level.

17. The computer-implemented method of claim 15 , the method further comprising:

determining, by the base station, that the first mode recommendation is to be used; and

selecting the MS-mode recommendation to be used for the second mode configuration, wherein the first mode recommendation is same as the MS-mode recommendation.

18. The computer-implemented method of claim 15 , the method further comprising

determining, by the base station, that the first mode recommendation is not to be used; and

selecting, by the base station, the BS-derived mode configuration to be used for the second mode configuration.

19. The computer-implemented method of claim 15 , wherein the first channel information comprises at least two factors that are used to identify the first system state.

20. The computer-implemented method of claim 19 , wherein the at least two factors comprise a combination of at least two of: a Physical Carrier to Interference and Noise Ratio (PCINR), a Burst Error Rate (BuER), or a channel correlation (Corr).

21. The computer-implemented method of claim 15 , wherein the first channel information comprises a single factor that is used to identify the first system state.

22. The computer-implemented method of claim 21 , wherein the single factor is a channel correlation (Corr).

23. The computer-implemented method of claim 15 , the method further comprising:

receiving, by the base station, second feedback information comprising a second mode recommendation and second channel information;

identifying, by the base station, a second system state of the second communication based at least in part on the second channel information;

determining, by the base station, whether to use the second mode recommendation for a third communication based at least in part on the second system state; and

configuring, by the base station, the third communication using a third mode configuration based on the determination whether to use the second mode recommendation.

24. The computer-implemented method of claim 15 , the method further comprising:

identifying, by one or more processors of a state transition module of the base station, the one or more transition conditions corresponding to the prior system state for a prior communication before the first communication, wherein the one or more transition conditions comprise at least one transition rule that defines whether to transition from the prior system state to the first system state.

25. The computer-implemented method of claim 15 , the method further comprising:

using, by the one or more processors of the state transition module, the at least one transition rule to compare a prior channel information with the first channel information to determine whether the prior system state is to be transitioned to the first system state.

26. The computer-implemented method of claim 15 , wherein the network is a WIMAX network.

27. A non-transitory computer readable medium storing computer executable instructions for a hybrid scheme of mode decision in a network having a plurality of mobile stations (MS) communicably coupled to a base station (BS), the instructions, when executed, configuring one or more processors to perform the operations of:

selecting, by the base station, a first mode configuration for use during transmission of a first communication from the base station;

receiving, by the base station, first feedback information comprising a first mode recommendation and first channel information from at least one of the plurality of MS;

identifying, by the base station, a first system state of the first communication based at least in part on the first channel information;

determining, by the base station, whether to transition from a prior system state to the first system state based on one or more transition conditions, and transitioning from the prior system state to the first system state;

determining, by the base station, whether to use the first mode recommendation based at least in part on the first system state and satisfaction of at least one of the one or more transition conditions; and

responsive to the determination, configuring, by the base station, a second communication using a second mode configuration selected between a BS-derived mode based upon system-level information and an MS-mode recommendation based upon channel information so as to adaptively change the system state as channel condition or network condition change over time.