User equipment and methods for handover enhancement using reference signal received quality (RSRQ)
First Claim
1. An apparatus for User Equipment (UE) configured for speed-dependent cell reselection, the apparatus comprising:
- processing circuitry to select a threshold for handover based on a mobility state of the UE and to determine a reference signal received quality (RSRQ) of a serving cell and an RSRQ of a target cell from a ratio of a reference signal received power (RSRP) to a received signal strength indicator (RSSI) for resource blocks (RBs) containing reference signals; and
physical layer circuitry to transmit a measurement report to a serving eNB for handover from the serving cell to the target cell based on the selected threshold when the target cell RSRQ exceeds the serving cell RSRQ by at least an A3offset value for a time-to-trigger (TTT).
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Accused Products
Abstract
Embodiments of user equipment (UE) and method for handover enhancement using reference signal received quality (RSRQ) in a wireless network are generally described herein. In some embodiments, a UE adaptively selects handover initiation parameters based, at least in part, on a velocity of the UE. The UE may determine an RSRQ of a serving cell and an RSRQ of a target cell and may transmit a measurement report to a serving eNB for handover from the serving cell to the target cell when the target cell RSRQ exceeds the serving cell RSRQ in accordance with the selected handover initiation parameters. In some of these embodiments, the handover initiation parameters may include an offset value, such as an A3offset value, and a time-to-trigger (TTT) that comprise an A3offset-TTT pair.
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Citations
13 Claims
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1. An apparatus for User Equipment (UE) configured for speed-dependent cell reselection, the apparatus comprising:
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processing circuitry to select a threshold for handover based on a mobility state of the UE and to determine a reference signal received quality (RSRQ) of a serving cell and an RSRQ of a target cell from a ratio of a reference signal received power (RSRP) to a received signal strength indicator (RSSI) for resource blocks (RBs) containing reference signals; and physical layer circuitry to transmit a measurement report to a serving eNB for handover from the serving cell to the target cell based on the selected threshold when the target cell RSRQ exceeds the serving cell RSRQ by at least an A3offset value for a time-to-trigger (TTT). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a User Equipment (UE) to configure the UE to perform operations to:
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select a threshold for handover based on a mobility state of the UE; determine a reference signal received quality (RSRQ) of a serving cell and an RSRQ of a target cell from a ratio of a reference signal received power (RSRP) to a received signal strength indicator (RSSI) for resource blocks (RBs) containing reference signals; and encode a measurement report for transmission to a serving eNB for handover from the serving cell to the target cell based on the selected threshold when the target cell RSRQ exceeds the serving cell RSRQ by at least an A3offset value for a time-to-trigger (TIT). - View Dependent Claims (13)
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Specification