Apparatus and method for managing multi-carrier
AssigneesSamsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute
InventorsJuhee Kim, Eunkyung Kim, Sook Jin Lee, Kyung Soo Kim
Life of this patent
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Abstract
An apparatus for managing a multi-carrier in a communication system supporting the multi-carrier receives channel quality information of multi-carriers from a terminal and directs the terminal to change a primary carrier from a current primary carrier to one carrier of the multi-carriers on the basis of reference information including channel quality information.
Claims14
A method for managing a multi-carrier in a base station of a communication system supporting the multi-carrier, the method comprising:
- receiving channel quality information of the multi-carrier from a terminal;
- determining an average value of channel quality information of each carrier;
- determining a new primary carrier based on the average value of channel quality information of each carrier;
- and
- transmitting control information directing the terminal to change a primary carrier from a current primary carrier to the new primary carrier through the current primary carrier,
- wherein the control information includes information on the new primary carrier, and
- wherein the determining of the new primary carrier includes:
- averaging channel quality information of each carrier during a measurement window period;
- electing carriers having average values that are larger than an average value of the current primary carrier among average values of the channel quality information of the multi-carrier;
- and
- determining a primary carrier to be a carrier having a value that is smaller than the predetermined load distribution value as the new primary carrier.
An apparatus for managing a multi-carrier in a base station of a communication system supporting the multi-carrier, the apparatus comprising:
- a channel information receiver that receives channel quality information of each of the multi-carriers from a terminal;
- an average value calculator that determines an average value of the channel quality information of each carrier;
- and
- a primary carrier determiner that determines a new primary carrier based on the average value of channel quality information of each carrier;
- and
- a change requester that transmitting control information directing the terminal to change a primary carrier from a current primary carrier to the new primary carrier through the current primary carrier,
- wherein the control information includes information on the new primary carrier, and
- wherein the primary carrier determiner selects a carrier having average values of the channel quality information that are larger than an average value of channel quality information of the current primary carrier among the multi-carriers, and determines a carrier having a load distribution value that is smaller than a predetermined load distribution among the selected carriers as the one carrier as the new primary carrier.
A method for managing a multi-carrier in a base station of a communication system supporting the multi-carrier, the method comprising:
- receiving channel quality information of the multi-carriers from a terminal;
- determining an average value of channel quality information of each carrier;
- determining a new primary carrier based on the average value of channel quality information of each carrier and a load distribution value of the multi-carriers;
- and
- transmitting control information directing the terminal to change a primary carrier from a current primary carrier to the new primary carrier through the current primary carrier,
- wherein the control information includes information on the new primary carrier, and
- wherein the determining of the new primary carrier includes:
- averaging channel quality information of each carrier during a measurement window period;
- and
- determining a primary carrier to a carrier having a value that is smaller than the predetermined load distribution value as the new primary carrier.
A method for managing a multi-carrier in a communication system supporting the multi-carrier, the method comprising:
- assigning the carriers to a primary carrier or a secondary carrier;—re-assigning one of the carriers assigned to the secondary carrier to the primary carrier based on an average value of channel quality information of each carrier;
- and
- changing the primary carrier according to the re-assigning,
- wherein the determining of the new primary carrier includes:
- averaging channel quality information of each carrier during a measurement window period;
- selecting a carrier having an average value larger that is than an average value of the current primary carrier among average values of the channel quality information of the multi-carrier;
- and
- determining a primary carrier to a carrier having a value that is smaller than the predetermined load distribution value as the new primary carrier.
Dependencies are inferred from the claim text.