Method and apparatus for mobility management
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJinhua Liu, Rui Fan
Life of this patent
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Abstract
Method for a communication device switching among a plurality of sub-bands in a wireless network. The method comprises measuring a signal quality for an operation sub-band, comparing the signal quality with a signal quality threshold, determining a switch action according to the comparison of the signal quality with the signal quality threshold, and switching from the operation sub-band according to the determined switch action. The communication device and access node thereof are also disclosed.
Claims10
A method for an access node in a wireless network, wherein a system carrier of the wireless network comprises a plurality of sub-bands, and reference signals for mobility measurement are transmitted in at least one of the plurality of sub-bands, the method comprising:
- determining whether a switch condition is satisfied for a communication device operating in a sub-band in which the reference signals are not transmitted;
- and
- configuring the communication device with a switch action, in response to determining the switch condition being satisfied for the communication device, to switch from the operating sub-band to a sub-band in which the reference signals are transmitted periodically.
A communication device in a wireless network, wherein a system carrier of the wireless network comprising a plurality of sub-bands, and reference signals for mobility measurement being transmitted in at least one of the plurality of sub-bands, the communication device comprising:
- a memory storing instructions;
- and
- a processing system configured to execute the instructions to cause the communication device, operating in an operation sub-band in which the reference signals are not transmitted, to:
- measure a signal quality for the operation sub-band;
- compare the signal quality with a signal quality threshold;
- determine a switch action according to a comparison of the signal quality with the signal quality threshold;
- and
- switch from the operation sub-band to a sub-band in which the reference signals are transmitted periodically according to the determined switch action.
An access node in a wireless network, wherein a system carrier of the wireless network comprising a plurality of sub-bands, and reference signals for mobility measurement being transmitted in at least one of the plurality of sub-bands, the access node comprising:
- a memory storing instructions;
- and
- a processing system configured to execute the instructions to cause the access node to:
- determine whether a switch condition is satisfied for a communication device operating in a sub-band in which the reference signals are not transmitted;
- and
- configure the communication device with a switch action, in response to determining the switch condition being satisfied for the communication device, to switch from the operating sub-band to a sub-band in which the reference signals are transmitted periodically.
Dependencies are inferred from the claim text.