Network coverage hole detection
First Claim
1. A user equipment (UE) operable to connect to a third generation partnership project (3GPP) long term evolution (LTE) cell in a cellular network, having computer circuitry configured to:
- record, at the UE, logged minimization of drive test (MDT) measurements at a selected rate when the UE is in a radio resource control (RRC) idle mode in a first LTE cell in a cellular network;
identify a change in a UE state of the RRC idle mode;
stop recording the Logged MDT measurements at the UE when the UE state changes from a camped normally UE state to another UE state of the RRC idle mode;
resume recording of the Logged MDT measurements when the UE state changes to the camped normally UE state of the RRC idle mode; and
communicate the Logged MDT measurements to the cellular network to enable the cellular network to derive spatial information about cell boundaries in the cellular network.
3 Assignments
0 Petitions
Accused Products
Abstract
A technology for a user equipment (UE) that is operable to connect to a third generation partnership project (3GPP) long term evolution (LTE) cell in a cellular network. Logged minimization of drive test (MDT) measurements can be recorded at the UE at a selected rate when the UE is in a radio resource control (RRC) idle mode in a first LTE cell in a cellular network. A change in a UE state of the RRC idle mode can be identified. The Logged MDT measurements can stop being recorded at the UE when the UE state changes from a camped normally UE state to another UE state of the RRC idle mode. The Logged MDT measurements can resume being recorded when the UE state changes to the camped normally UE state of the RRC idle mode.
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Citations
18 Claims
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1. A user equipment (UE) operable to connect to a third generation partnership project (3GPP) long term evolution (LTE) cell in a cellular network, having computer circuitry configured to:
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record, at the UE, logged minimization of drive test (MDT) measurements at a selected rate when the UE is in a radio resource control (RRC) idle mode in a first LTE cell in a cellular network; identify a change in a UE state of the RRC idle mode; stop recording the Logged MDT measurements at the UE when the UE state changes from a camped normally UE state to another UE state of the RRC idle mode; resume recording of the Logged MDT measurements when the UE state changes to the camped normally UE state of the RRC idle mode; and communicate the Logged MDT measurements to the cellular network to enable the cellular network to derive spatial information about cell boundaries in the cellular network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method to record minimization of drive test (MDT) measurements at a user equipment (UE) in a cellular network, comprising:
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recording, at the UE, logged minimization of drive test (MDT) measurements at a selected rate when the UE is in a radio resource control (RRC) idle mode in a first third generation partnership project (3GPP) long term evolution (LTE) cell in a cellular network; identifying a change in a UE state of the RRC idle mode; ceasing recording the Logged MDT measurements at the UE when the UE state changes from a camped normally UE state to another UE state of the RRC idle mode; connecting the UE to another LTE cell in the cellular network; and resuming recording of the MDT measurements when the UE state changes to the camped normally UE state of the RRC idle mode when the UE is connected to the other LTE cell, wherein the ceasing recording of the Logged MDT measurements and the resuming of the Logged MDT measurements is used by the cellular network to derive spatial information about cell boundaries in the cellular network. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification