1. An evolved Node B (eNB) for sending feedback information, comprising:
a processor;
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
determine configuration parameters related to an Enhanced Physical Hybrid-Automatic Repeat reQuest (ARQ) Indicator Channel (EPHICH);
send an uplink grant and an associated EPHICH resource indicator based on the configuration parameters, wherein a transmit power control (TPC) index is determined based on the EPHICH resource indicator;
receive data in a Physical Uplink Shared Channel (PUSCH); and
send Hybrid Automatic Repeat Request AcknowledgementNegative Acknowledgement (HARQ-ACK) information based on the configuration parameters.
2. The eNB of claim 1, wherein the EPHICH resource indicator comprises a field in downlink control information (DCI) corresponding to the uplink grant.
3. The eNB of claim 1, wherein an EPHICH group set index is determined based on the EPHICH resource indicator.
4. The eNB of claim 3, wherein at least one of a virtual cell ID (VCID) and the transmit power control (TPC) index are determined based on the EPHICH group set index.
5. The eNB of claim 1, wherein at least one of a virtual cell ID (VCID) and an EPHICH group set index are determined based on the TPC index.
6. The eNB of claim 1, wherein there are multiple virtual cell IDs (VCIDs) configured for demodulation reference signals (DMRS), and wherein a single VCID for generating a DMRS sequence is determined based on the EPHICH resource indicator.
7. The eNB of claim 6, wherein at least one of the transmit power control (TPC) index and an EPHICH group set index are determined based on the virtual cell ID (VCID).
8. The eNB of claim 1, wherein an EPHICH group index is determined based on the EPHICH resource indicator.
9. The eNB of claim 8, wherein the EPHICH resource indicator comprises at least one of a physical resource block (PRB) index and a cyclic shift index, and wherein the EPHICH group index is determined based on at least one of the PRB index and the cyclic shift index.
10. The eNB of claim 9, wherein a configuration set index is determined based on the EPHICH resource indicator.
11. A User Equipment (UE) for receiving feedback information, comprising:
a processor;
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
receive an uplink grant and an associated Enhanced Physical Hybrid-Automatic Repeat reQuest (ARQ) Indicator Channel (EPHICH) resource indicator;
determine configuration parameters based on the EPHICH resource indicator, wherein an EPHICH group set index is determined based on the EPHICH resource indicator, and wherein at least one of a virtual cell ID (VCID) and a transmit power control (TPC) index are determined based on the EPHICH group set index;
send data in a Physical Uplink Shared Channel (PUSCH); and
obtain Hybrid Automatic Repeat Request AcknowledgementNegative Acknowledgement (HARQ-ACK) information based on the configuration parameters.
12. The UE of claim 11, wherein the EPHICH resource indicator comprises a field in downlink control information (DCI) corresponding to the uplink grant.
13. The UE of claim 11, wherein an EPHICH group index is determined based on the EPHICH resource indicator.
14. A method for sending feedback information by an evolved Node B (eNB), comprising:
determining configuration parameters related to an Enhanced Physical Hybrid-Automatic Repeat reQuest (ARQ) Indicator Channel (EPHICH);
sending an uplink grant and an associated EPHICH resource indicator based on the configuration parameters, wherein a transmit power control (TPC) index is determined based on the EPHICH resource indicator;
receiving data in a Physical Uplink Shared Channel (PUSCH); and
sending Hybrid Automatic Repeat Request AcknowledgementNegative Acknowledgement (HARQ-ACK) information based on the configuration parameters.
15. The method of claim 14, wherein the EPHICH resource indicator comprises a field in downlink control information (DCI) corresponding to the uplink grant.
16. The method of claim 14, wherein an EPHICH group set index is determined based on the EPHICH resource indicator.
17. The method of claim 16, wherein at least one of a virtual cell ID (VCID) and the transmit power control (TPC) index are determined based on the EPHICH group set index.
18. The method of claim 14, wherein at least one of a virtual cell ID (VCID) and an EPHICH group set index are determined based on the TPC index.
19. The method of claim 14, wherein there are multiple virtual cell IDs (VCIDs) configured for demodulation reference signals (DMRS), and wherein a single VCID for generating a DMRS sequence is determined based on the EPHICH resource indicator.
20. The method of claim 19, wherein at least one of the transmit power control (TPC) index and an EPHICH group set index are determined based on the VCID.
21. The method of claim 14, wherein an EPHICH group index is determined based on the EPHICH resource indicator.
22. The method of claim 21, wherein the EPHICH resource indicator comprises at least one of a physical resource block (PRB) index and a cyclic shift index, and wherein the EPHICH group index is determined based on at least one of the PRB index and the cyclic shift index.
23. The method of claim 22, wherein a configuration set index is determined based on the EPHICH resource indicator.
24. A method for receiving feedback information by a User Equipment (UE), comprising:
receiving an uplink grant and an associated Enhanced Physical Hybrid-Automatic Repeat reQuest (ARQ) Indicator Channel (EPHICH) resource indicator;
determining configuration parameters based on the EPHICH resource indicator, wherein an EPHICH group set index is determined based on the EPHICH resource indicator, and wherein at least one of a virtual cell ID (VCID) and a transmit power control (TPC) index are determined based on the EPHICH group set index;
sending data in a Physical Uplink Shared Channel (PUSCH); and
obtaining Hybrid Automatic Repeat Request AcknowledgementNegative Acknowledgement (HARQ-ACK) information based on the configuration parameters.
25. The method of claim 24, wherein the EPHICH resource indicator comprises a field in downlink control information (DCI) corresponding to the uplink grant.
26. The method of claim 24, wherein an EPHICH group index is determined based on the EPHICH resource indicator.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for controlling an element that is part of a system so that for an instance in which it is necessary to reposition the element, the element is moved between a first position and a second position during a transition-time interval, and so that the element only moves during the transition-time interval and is precisely positioned both immediately before and after the transition-time interval, comprising the steps of:
(a) providing a model of the system;
(b) using the model for characterizing internal dynamics of the system in which energy applied to the system outside the transition-time interval is hidden so that the element does not move, other than during the transition-time interval;
(c) for a selected optimization criterion, determining optimal internal states at a beginning and an end of a movement of the element between the first position and the second position; and
(d) based upon the optimal internal states, determining an optimal control input signal for a transition-interval input, and at least one of a pre-actuation input and a post-actuation input acting on the element to cause the element to move from the first position to the second position so as to achieve the selected optimization criterion, wherein the pre-actuation input applies energy to the system before the transition-time interval, the post-actuation input applies energy to the system after the transition-time interval, and the transition-interval input applies energy to the system during the transition-time interval.
2. The method of claim 1, wherein the selected optimization criterion is to cause the element to move between the first position and the second position with substantially a minimum input energy.
3. The method of claim 1, wherein the selected optimization criterion is to cause the element to move between the first position and the second position in substantially a minimum transition-time interval.
4. The method of claim 1, wherein the pre-actuation input is uniquely specified in terms of an unstable internal state component.
5. The method of claim 4, wherein the post-actuation input is uniquely specified in terms of a stable internal state component, and wherein the unstable internal state component and the stable internal state component are the only components of boundary states for the first position and the second position that can be varied to ensure that the element does not move as a result of the energy applied to the system other than during the transition-time.
6. The method of claim 1, wherein the control input signal is defined as a function of a transition state difference related to the difference between the first position and the second position.
7. The method of claim 1, wherein at least one of the pre-actuation input, the post-actuation input, and the transition-interval input comprises a periodically varying signal at one or more frequencies selected to produce a force that acts on the element without causing the element to move prior to or after the transition-time interval.
8. The method of claim 1, wherein to move the element during the transition-time interval, further comprising the step of applying the transition-interval input signal during the transition-time interval, as well as applying the post-actuation input after the transition-time interval, but not applying the pre-actuation input before the transition-time interval.
9. The method of claim 1, wherein to move the element during the transition-time interval, further comprising the step of applying the transition-interval input signal during the transition-time interval, as well as applying the pre-actuation input before the transition-time interval, but not applying the post-actuation input after the transition-time interval.
10. The method of claim 1, wherein the element comprises a readwrite head of a nonvolatile memory device that is moved between the first position and the second position to provide access to different portions of a memory medium.
11. The method of claim 1, wherein the element is included in a nonlinear system.
12. The method of claim 1, wherein the element is moved between the first position and the second position to carry out a function, said function comprising one of:
(a) scanning a surface;
(b) reading data;
(c) writing data;
(d) positioning the element to implement a process;
(e) positioning the element to access a desired material;
(f) controlling a process as a function of a position to which the element is moved;
(g) fabricating a component by moving the element; and
(h) controlling operation of the system in which the element is included, as a function of a position to which the element is moved.
13. A memory medium storing machine readable instructions for controlling an element that is part of a system so that for an instance in which it is necessary to reposition the element, the element is moved between a first position and a second position during a transition-time interval, and so that the element only moves during the transition-time interval and is precisely positioned both immediately before and after the transition-time interval, the machine readable instructions, when executed by a computing device, carrying out the following steps:
(a) accessing a model of the system;
(b) using the model for characterizing internal dynamics of the system in which energy applied to the system outside the transition-time interval is hidden so that the element does not move, other than during the transition-time interval;
(c) for a selected optimization criterion, determining optimal internal states at a beginning and an end of a movement of the element between the first position and the second position; and
(d) based upon the optimal internal states, determining an optimal control input signal for a transition-interval input, and at least one of a pre-actuation input and a post-actuation input acting on the element to cause the element to move from the first position to the second position so as to achieve the selected optimization criterion, wherein the pre-actuation input applies energy to the system before the transition-time interval, the post-actuation input applies energy to the system after the transition-time interval, and the transition-interval input applies energy to the system during the transition-time interval.
14. A controller for moving an element that is part of a system during a transition-time interval, to achieve a selected optimization criterion, comprising:
(a) a memory in which machine instructions are stored; and
(b) a processor that is coupled to the memory, said processor executing the machine instructions to carry out a plurality of functions, including:
(i) accessing a model of the system;
(ii) using the model for characterizing internal dynamics of the system in which energy applied to the system outside the transition-time interval is hidden so that the element will not move other than during the transition-time interval;
(iii) for the selected optimization criterion, determining optimal internal states at a beginning and an end of a movement of the element between the first position and the second position; and
(iv) based upon the optimal internal states, determining an optimal control input signal for a transition-interval input and at least one of a pre-actuation input and a post-actuation input acting on the system to cause the element to move from the first position to the second position so as to achieve the selected optimization criterion, wherein the pre-actuation input applies energy to the system before the transition-time interval, the post-actuation input applies energy to the system after the transition-time interval, and the transition-interval input applies energy to the system during the transition-time interval.
15. The controller of claim 14, wherein the selected optimization criterion used causes the element to move between the first position and the second position with substantially a minimum input energy.
16. The controller of claim 14, wherein the selected optimization criterion used causes the element to move between the first position and the second position in substantially a minimum time.
17. The controller of claim 14, wherein the pre-actuation input is uniquely specified in terms of an unstable internal state component.
18. The controller of claim 17, wherein the post-actuation input is uniquely specified in terms of a stable internal state component, and wherein the unstable internal state component and the stable internal state component are the only components of boundary states for the first position and the second position that can be varied by the controller to ensure that the element does not move as a result of the energy applied to the system other than during the transition-time.
19. The controller of claim 14, wherein the control input signal is defined as a function of a transition state difference related to the difference between the first position and the second position.
20. The controller of claim 14, wherein at least one of the pre-actuation input, the post-actuation input, and the transition-interval input comprises a periodically varying signal at one or more frequencies selected to act on the element without causing the element to move prior to and after the predefined interval of time.
21. The controller of claim 14, wherein to move the element during the transition-time interval, the machine instructions further cause the processor to apply the transition-interval input signal during the transition-time interval, as well as applying the post-actuation input after the transition-time interval, but not applying the pre-actuation input before the transition-time interval.
22. The controller of claim 14, wherein to move the element during the transition-time interval, the machine instructions further cause the processor to apply the transition-interval input signal during the transition-time interval, as well as applying the pre-actuation input before the transition-time interval, but not applying the post-actuation input after the transition-time interval.
23. The controller of claim 14, wherein the processor produces an output signal adapted to drive a readwrite head of a nonvolatile memory device that is moved between the first position and the second position to provide access to different portions of a memory medium.
24. The controller of claim 14, wherein the processor is adapted to produce a non-linear output signal.
25. The controller of claim 14, wherein a control function implemented by the controller comprises one of:
(a) scanning a surface;
(b) reading data;
(c) writing data;
(d) positioning an element to implement a process;
(e) positioning an element to access a desired material;
(f) controlling a process;
(g) fabricating a component; and
(h) controlling operation of a system in which the element is moved from time-to-time.
26. A method for moving an element that is part of a system, between a first position and a second position during a transition-time interval, to achieve at least one of a minimum transition-time interval and a minimum energy for moving the element between the first position and the second position, comprising the steps of:
(a) determining a relative degree of the system;
(b) finding an inverse input for the system;
(c) selecting a transformation matrix to convert system equations that define the system, into an output tracking form;
(d) transforming the system equations into the output tracking form;
(e) decoupling internal dynamics of the system to produce decoupled internal dynamics;
(f) computing parameters for the decoupled internal dynamics; and
(g) determining an optimal output-transition solution as a function of the parameters, for defining an optimal control input for adding at least one of a pre-actuation energy and a post-actuation energy to the element, without causing movement of the element other than during the transition-time interval.