CLAIMS
What is claimed is:
1. An evolved node B (eNode B) operable to release a licensed shared access (LSA)
spectrum allocation in a communications network, the eNode B having circuitry
configured to:
receive, from a spectrum release module located in an evolved packet core (EPC) of the communications network, a spectrum release message requesting the eNode B release one or more selected segments of an LSA spectrum;
evaluate LSA spectrum release parameters for releasing the one or more selected segments of the LSA spectrum;
determine an LSA spectrum release schedule based on the LSA spectrum release parameters; and
deactivate selected secondary cells (SCells) in the communications network based on the LSA spectrum release schedule to release the one or more selected segments of the LSA spectrum.
2. The circuitry of claim 1, further configured to communicate an enhanced broadcast message to selected user equipment (UEs) in a cell of the eNode B indicating a schedule to deactivate one or more SCells.
3. The circuitry of claim 1, further configured to communicate, to each UE in the cell of the eNode B, a radio resource control (RRC) command to release the one or more selected SCells to fully release the LSA spectrum allocation.
4. The circuitry of claim 1, wherein the LSA spectrum release parameters include: TR, where TR is a time period for the eNode B to fully release the selected segments of the LSA spectrum; T where Tg is a starting time of the LSA spectrum release schedule; T where Tc is aperiodic time interval of when a sharing ratio between the LTE network and the incumbent is updated starting from Ts until TR; and T;, where T; is an amount of time that the eNB decreases a time sharing with the incumbent at every Tc time interval.

5. The circuitry of claim 4, wherein the LSA spectrum release parameters are negotiated in real time or substantially real time with an incumbent communications network.
6. The circuitry of claim l, further configured to use one or more of the selected secondary cells (SCells) for the period of time Tc -T; in every Tc time interval until time instant TR.
7. A user equipment (UE) operable to release a licensed shared access (LSA) spectrum allocation in a communications network, the UE having circuitry configured to:
receive, from an evolved Node B (eNode B), a broadcast message indicating a schedule to deactivate a secondary cell (SCell);
determine when to release the SCell based on the schedule; and release the SCell in the communications network, wherein releasing the SCell releases LSA spectrum allocation to an incumbent communications network.
8. The circuitry of claim 7, further configured to release the SCell at a selected time indicated in the schedule.
9. The circuitry of claim 8, further configured to initiate releasing the SCell 8 subframes before the selected release time indicated in the schedule.
10. The circuitry of claim 7, wherein an enhanced system information message is broadcasted from the eNode B.
11. The circuitry of claim 7, further configured to receive a handover command when the eNode B is not capable of providing a quality of service (QoS) level used by the UE due to the LSA release schedule.

12. A product including anon-transitory storage medium having stored thereon
instructions that are adapted to be executed to implement a method of releasing a
licensed shared access (LSA) spectrum allocation in a communications network,
the method comprising:
receiving, from an evolved packet core (EPC) module, a spectrum release message requesting the eNode B release an LSA spectrum;
determining an LSA spectrum release schedule based on LSA spectrum release parameters; and
releasing selected secondary cells (SCells) in the communications network based on the LSA spectrum release schedule to release the LSA spectrum.
13. The product of claim 12, wherein the spectrum release message indicates a time instance (T ) indicating when the LSA spectrum release schedule will begin.
14. The product of claim 12, wherein the LSA spectrum release parameters include: TR, where TR is a time period for the eNode B to fully release the selected segments of the LSA spectrum; T where Ts is a starting time of the LSA spectrum release schedule; T where Tc is aperiodic time interval when the sharing ratio between the eNode B and an incumbent is updated starting from Ts until TR; and T;, where T; is a time amount by which the eNB decreases the time sharing with the incumbent at every Tc time interval.
15. The product of claim 14, wherein the LSA spectrum release parameters are predetermined parameters.
16. The product of claim 14, wherein the LSA spectrum release parameters are negotiated in real time or substantially real time with an incumbent communications network.
17. The product of claim 12, wherein the method further comprises restricting aUE from communicating, using the LSA spectrum, selected datatypes that use a quality of service (QoS) that exceeds a QoS threshold value.

18. The product of claim 12, wherein the method further comprises coordinating with other eNode Bs in the communications network to receive data traffic from one or more UEs using the LSA spectrum.
19. The product of claim 12, wherein the method further comprises adjusting a quality of service (QoS) level provided to UEs transferring data.
20. The product of claim 12, wherein the method further comprises adjusting a quality of service (QoS) level of aUEby scheduling resources for the UE based on the LSA spectrum release schedule.