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1. US20170215115 - Devices, methods and computer program products for an improved handover in inter-site carrier aggregation scenarios

Office
United States of America
Application Number 15480604
Application Date 06.04.2017
Publication Number 20170215115
Publication Date 27.07.2017
Grant Number 10588059
Grant Date 10.03.2020
Publication Kind B2
IPC
H04L 5/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04W 36/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
H04W 36/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
08Reselecting an access point
H04W 36/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
16Performing reselection for specific purposes
18for allowing seamless reselection, e.g. soft reselection
H04W 36/24
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
24Reselection being triggered by specific parameters
H04W 36/30
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
24Reselection being triggered by specific parameters
30by measured or perceived connection quality data
CPC
H04L 5/001
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0003Two-dimensional division
0005Time-frequency
0007the frequencies being orthogonal, e.g. OFDM(A), DMT
001the frequencies being arranged in component carriers
H04W 36/0072
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
0055Transmission and use of information for re-establishing the radio link
0072of resource information of target access point
H04L 5/0035
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
003Arrangements for allocating sub-channels of the transmission path
0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
0035Resource allocation in a cooperative multipoint environment
H04W 36/0005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
H04W 36/0061
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
0055Transmission and use of information for re-establishing the radio link
0061of neighbor cell information
H04W 36/0069
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
0005Control or signalling for completing the hand-off
0055Transmission and use of information for re-establishing the radio link
0069in case of dual connectivity, e.g. CoMP, decoupled uplink/downlink or carrier aggregation
Applicants Nokia Solutions and Networks Oy
Nokia Technologies Oy
Inventors Seppo Ilmari Vesterinen
Johanna Katariina Pekonen
Henri Markus Koskinen
Agents Harrington & Smith
Title
(EN) Devices, methods and computer program products for an improved handover in inter-site carrier aggregation scenarios
Abstract
(EN)

A device communicates with a terminal in association with at least a first other device, using at least two carriers, wherein at least a first carrier towards the terminal is established from the device and at least a second carrier is established towards the terminal from the first other device. The device receives a report indicative of a connection quality of the first carrier, responsive thereto issues a request for handover of the first carrier towards a second device, sends relocation information in relation to the first carrier towards the first other device, and only after sending that relocation information, commands the terminal to perform a handover of the first carrier to the second device. Such device, in cooperation with other devices, accomplishes an optimized handover in terms of a primary component carrier relocation from a serving eNB towards a target eNB, while a secondary component carrier is maintained.