Relay station and method of operating relay station in multi-hop communication system
First Claim
Patent Images
1. A relay station of a multi-hop communication system, comprising:
- a delay monitoring unit configured to monitor a delay of the relay station;
a decision unit configured to determine whether the monitored delay exceeds a predetermined threshold; and
a handover controller configured to control and select the relay station or at least one lower relay station connecting with the relay station to be handed over to a connection target relay station where the monitored delay exceeds the threshold,wherein the handover controller comprisesa relative delay calculator configured to calculate a relative delay of each of the at least one lower relay station based on a bandwidth allocation ratio of each of the at least one lower relay station, anda selector configured to select, from the at least one lower relay station, a lower relay station to be handed over to the connection target relay station based on the calculated relative delay.
1 Assignment
0 Petitions
Accused Products
Abstract
A replay station and a method of operating the relay station in a multi-hop communication system are provided. A method of operating a relay station of a multi-hop communication system includes monitoring a delay of the relay station, determining whether the monitored delay exceeds a predetermined threshold, and controlling the relay station to be handed over to another upper relay station that is different from a connecting upper relay station.
-
Citations
9 Claims
-
1. A relay station of a multi-hop communication system, comprising:
-
a delay monitoring unit configured to monitor a delay of the relay station; a decision unit configured to determine whether the monitored delay exceeds a predetermined threshold; and a handover controller configured to control and select the relay station or at least one lower relay station connecting with the relay station to be handed over to a connection target relay station where the monitored delay exceeds the threshold, wherein the handover controller comprises a relative delay calculator configured to calculate a relative delay of each of the at least one lower relay station based on a bandwidth allocation ratio of each of the at least one lower relay station, and a selector configured to select, from the at least one lower relay station, a lower relay station to be handed over to the connection target relay station based on the calculated relative delay. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method of operating a relay station of a multi-hop communication system, the method comprising:
-
monitoring a delay of the relay station; determining whether the monitored delay exceeds a predetermined threshold; and in response to the monitored delay exceeding the threshold, controlling and selecting at least one lower relay station connecting with the relay station to be handed over to another relay station, wherein the controlling and the selecting of the at least one lower relay station comprises calculating a relative delay of each of the at least one lower relay station based on a bandwidth allocation ratio of each of the at least one lower relay station, and selecting, from the at least one lower relay station, a lower relay station to be handed over to the other relay station based on the calculated relative delay. - View Dependent Claims (7, 8, 9)
-
Specification