Radio link monitoring for link-budget-limited devices
First Claim
1. An apparatus for facilitating radio link monitoring, the apparatus comprising:
- a processing element configured to cause a device to;
perform wireless communications with a cellular network;
receive, from the cellular network, a physical channel signaling with a specific modulation and coding scheme index value that falls within a specified range of modulation and coding scheme index values; and
adjust radio link monitoring of the UE in response to receiving the specific modulation and coding scheme index value.
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Abstract
A link-budget-limited wireless communication device (UE) may implement improved radio link monitoring procedures for enhancing the link-budget of the UE. The UE may monitor the radio link and may determine whether the radio link can support a lowest acceptable link quality according to a hysteresis-based comparison that uses threshold values to determine error rates associated with a physical control channel. The UE may also identify itself to the network as a link-budget-limited device, and the network may enable special link-budget enhancing features for the UE, including boosting the power of the resource elements (REs) carrying physical channel signaling/data to the UE. The UE may detect the presence of power boost and may estimate/determine the power boost level. The UE may modify the threshold values based on the power boost detection and/or results of the power boost level estimation/determination, and may use the modified threshold values for determining radio link quality during radio link monitoring.
25 Citations
20 Claims
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1. An apparatus for facilitating radio link monitoring, the apparatus comprising:
a processing element configured to cause a device to; perform wireless communications with a cellular network; receive, from the cellular network, a physical channel signaling with a specific modulation and coding scheme index value that falls within a specified range of modulation and coding scheme index values; and adjust radio link monitoring of the UE in response to receiving the specific modulation and coding scheme index value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising:
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radio circuitry comprising one or more antennas and configured to facilitate wireless communications of the device with a cellular network; and processing circuitry coupled to the radio circuitry and configured to interoperate with the radio circuitry to cause the device to; receive, from the cellular network, a physical channel signaling with a specific modulation and coding scheme index value that falls within a specified range of modulation and coding scheme index values; and adjust radio link monitoring of the device in response to receiving the specific modulation and coding scheme index value. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A non-transitory memory element storing instruction executable by a processing element to cause a device to:
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perform wireless communications with a cellular network; receive, from the cellular network, a physical channel signaling with a specific modulation and coding scheme index value that falls within a specified range of modulation and coding scheme index values; and adjust radio link monitoring of the UE in response to receiving the specific modulation and coding scheme index value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification