SYSTEMS AND METHODS FOR SELECTING THE SIZE OF A CONTROL REGION OF A DOWNLINK SUBFRAME
First Claim
1. A method performed by a network node for setting the size of a control region of a subframe based on a set of one or more physical downlink control channels (PDCCHs), comprising:
- (a) selecting a first control region size from a set of control region sizes and determining a subset of the PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the first control region size;
(b) selecting a second control region size from the set of control region sizes and determining a subset of the PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the second control region size;
(c) after performing step (b), choosing a control region size for the subframe, wherein the control region size is chosen based, at least in part, on information pertaining to the subset of PDCCHs that can be assigned to a control region having a size equal to the chosen control region size; and
(d) setting the size of the control region of the subframe to the control region size chosen in step (c).
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Abstract
Disclosed herein are systems and methods for choosing the size of the control region of a downlink subframe. For example, an apparatus for selecting the size of the control region based on a set of one or more physical downlink control channels (PDCCHs) is disclosed. The apparatus, in some embodiments, includes: a module configured to determine, for each of at least two or more control region sizes included in a set of two or more control region sizes, a subset of PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the control region size; and control region size selector for selecting a control region size for the subframe, wherein the control region size selector is configured to make the selection based, at least in part, on information pertaining to the subset of PDCCHs that can be assigned to a control region having a size equal to the selected control region size.
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Citations
24 Claims
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1. A method performed by a network node for setting the size of a control region of a subframe based on a set of one or more physical downlink control channels (PDCCHs), comprising:
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(a) selecting a first control region size from a set of control region sizes and determining a subset of the PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the first control region size; (b) selecting a second control region size from the set of control region sizes and determining a subset of the PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the second control region size; (c) after performing step (b), choosing a control region size for the subframe, wherein the control region size is chosen based, at least in part, on information pertaining to the subset of PDCCHs that can be assigned to a control region having a size equal to the chosen control region size; and (d) setting the size of the control region of the subframe to the control region size chosen in step (c). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A base station, comprising:
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a scheduling module configured to schedule uplink and downlink resources and configured to produce information identifying a set of physical downlink control channels (PDCCHs) for transmission on a subframe; and a control region size selector configured to obtain the information identifying the set of PDCCHs, wherein the control region size selector is further configured to; (a) for each of at least two control region sizes included in a set of two or more control region sizes, determine a subset of PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the control region size, (b) choose a control region size for the subframe, wherein the control region size is chosen based, at least in part, on information pertaining to the subset of PDCCHs from the set of PDCCHs that can be assigned to a control region having a size equal to the chosen control region size, and (c) set the size of the control region of the subframe to the chosen control region size. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for selecting the size of a control region for a subframe based on a set of one or more physical downlink control channels (PDCCHs), comprising:
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a module configured to determine, for each of at least two or more control region sizes included in a set of two or more control region sizes, a subset of PDCCHs from said set of PDCCHs that can be assigned to a control region having a size equal to the control region size; and control region size selector configured to select a control region size for the subframe, wherein the control region size selector is configured to make the selection based, at least in part, on information pertaining to the subset of PDCCHs that can be assigned to a control region having a size equal to the selected control region size. - View Dependent Claims (21, 22, 23, 24)
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Specification