Method and Apparatus for Inter-Frequency Measurements in a Communication Network
First Claim
1. A method in a wireless device for performing measurements on inter-frequency layers in a wireless communication network, said method comprising:
- scanning a set of frequency layers that are candidates for subsequent, regular inter-frequency measurements by the wireless device;
selecting a subset of the frequency layers in the set, wherein the subset is determined based on said scanning; and
performing the regular inter-frequency measurements on the selected subset of the frequency layers.
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Abstract
In one aspect of the teachings herein, network-side and device-side methods and apparatus identify a subset of frequency layers on which a wireless device performs regular inter-frequency scanning. The subset is identified from among a set of frequency layers that are candidates for inter-frequency measurement by the device. In an example, the wireless device scans the set of frequency layers and the corresponding scan results are used to select the best frequency layers in the set. In turn, the wireless device performs regular inter-frequency measurements on the frequency layers in the selected subset. Scanning thus can be understood as a mechanism for intelligently selecting preferred ones among a number of frequency layers that are candidates for inter-frequency measurement by the device.
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Citations
34 Claims
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1. A method in a wireless device for performing measurements on inter-frequency layers in a wireless communication network, said method comprising:
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scanning a set of frequency layers that are candidates for subsequent, regular inter-frequency measurements by the wireless device; selecting a subset of the frequency layers in the set, wherein the subset is determined based on said scanning; and performing the regular inter-frequency measurements on the selected subset of the frequency layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wireless device configured to perform measurements on inter-frequency layers in a wireless communication network, said device comprising:
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a communication transceiver that is configured for transmitting signals to the network and receiving signals from the network; and one or more processing circuits that are operatively associated with the communication transceiver and configured to; scan a set of frequency layers that are candidates for subsequent, regular inter-frequency measurements by the wireless device; select a subset of the frequency layers in the set, wherein the subset is determined based on said scanning; and perform the regular inter-frequency measurements on the selected subset of the frequency layers. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method at a network node configured for operation in a wireless communication network, said method comprising:
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determining a set of frequency layers to be scanned by a wireless device as candidates for subsequent, regular inter-frequency measurements by the wireless device; initiating scanning of the set of the frequency layers by the wireless device, based on sending an inter-frequency scan configuration message to the wireless device, which message indicates the set of frequency layers; identifying a selected subset of the frequency layers in the set, wherein the subset is selected according to scan results obtained from said scanning by the wireless device; and receiving inter-frequency measurement reports from the wireless device, for the frequency layers in the selected subset. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A network node configured for operation in a wireless communication network, said network node comprising:
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a communication interface configured for sending signaling to a targeted wireless device; and one or more processing circuits that are operatively associated with the communication interface and configured to; determine a set of frequency layers to be scanned by the wireless device as candidates for subsequent, regular inter-frequency measurements by the targeted wireless device; initiate scanning of the set of the frequency layers by the wireless device, based on sending an inter-frequency scan configuration message to the wireless device, which message indicates the set of frequency layers; identify a selected subset of the frequency layers in the set, wherein the subset is selected according to scan results obtained from said scanning by the wireless device; and receive inter-frequency measurement reports from the wireless device, for the frequency layers in the selected subset. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification