Handover measurement control method and apparatus
First Claim
1. An apparatus on a first device side in a wireless communication system, the first device being configured to provide data forwarding service to one or more second devices in the wireless communication system, the apparatus comprising processing circuitry configured to:
- monitor a predetermined trigger event regarding variation in status of the first device;
control handover pre-measurement for the one or more second devices in response to the predetermined trigger event;
control handover measurement for the one or more second devices according to a result of the handover pre-measurement;
transmit a handover pre-measurement request to the target second device;
acquire handover pre-measurement data based on a response of the target second device to the handover pre-measurement request, the handover pre-measurement data being acquired by performing statistical analysis on a relationship between a movement range of the target second device and a signal coverage of the first device;
determine whether the target second device is to perform handover from the first device to at least one of another device and a candidate handover target set for the target second device, according to the acquired handover pre-measurement data; and
control the handover measurement for the target second device according to a determination result.
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Abstract
An apparatus and a method in a wireless communication system. In the wireless communication system, a master device provides a data forwarding service for one or plural slave devices, a master device side apparatus including: a monitoring unit, configured to monitor a predetermined trigger event relating to a change in state of the master device; a handover pre-measurement control unit, configured to respond to the predetermined trigger event by controlling the handover pre-measurement of the one or plural slave devices; and a handover measurement control unit, configured to control, based on the handover pre-measurement results, the handover measurement of the one or plural slave devices. The apparatus and method can accelerate start time of effective link handover in a dynamic network, reduce unnecessary link handover, and reduce delays and data loss caused by link failure.
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Citations
20 Claims
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1. An apparatus on a first device side in a wireless communication system, the first device being configured to provide data forwarding service to one or more second devices in the wireless communication system, the apparatus comprising processing circuitry configured to:
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monitor a predetermined trigger event regarding variation in status of the first device; control handover pre-measurement for the one or more second devices in response to the predetermined trigger event; control handover measurement for the one or more second devices according to a result of the handover pre-measurement; transmit a handover pre-measurement request to the target second device; acquire handover pre-measurement data based on a response of the target second device to the handover pre-measurement request, the handover pre-measurement data being acquired by performing statistical analysis on a relationship between a movement range of the target second device and a signal coverage of the first device; determine whether the target second device is to perform handover from the first device to at least one of another device and a candidate handover target set for the target second device, according to the acquired handover pre-measurement data; and control the handover measurement for the target second device according to a determination result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus on a second device side in a wireless communication system, a first device being configured to provide data forwarding service to the second device in the wireless communication system, the apparatus comprising processing circuitry configured to:
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receive a handover pre-measurement request transmitted by the first device in response to a predetermined trigger event regarding variation in status of the first device; receive a handover measurement request transmitted by the first device according to handover pre-measurement data, the handover pre-measurement data being acquired by performing statistical analysis on relationship between a movement range of the second device and a signal coverage of the first device based on a response of the second device to the handover pre-measurement request; and control handover measurement according to the handover measurement request, wherein it is determined whether the second device is to perform handover from the first device to at least one of another device and a candidate handover target set for the second device, according to the handover pre-measurement data. - View Dependent Claims (18, 19)
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20. An apparatus on a first device side in a wireless communication system, the first device being configured to provide data forwarding service to one or more second devices in the wireless communication system, the apparatus comprising processing circuitry configured to:
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monitor a predetermined trigger event regarding variation in status of the first device; control handover pre-measurement for the one or more second devices in response to the predetermined trigger event; control handover measurement for the one or more second devices according to a result of the handover pre-measurement; acquire handover pre-measurement data by performing statistical analysis on a channel condition feedback parameter regarding a channel between the first device and the target second device; and control the handover measurement for the target second device according to the handover pre-measurement data.
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Specification