US 8,798,100 B2 · Apparatus and method for supporting asymmetric carrier aggregation in wireless communication system

Abstract

An apparatus and a method for transmitting feedback information of an asymmetric frequency band in a wireless communication system supporting multiple bands are provided. The feedback information transmission method includes, when at least two frequency bands used by a mobile station includes at least one asymmetric frequency band, confirming feedback channel information for the asymmetric frequency band based on system channel information of the asymmetric frequency band, and transmitting feedback information for the asymmetric frequency band over the confirmed feedback channel. The feedback channel information includes feedback channel information for the asymmetric frequency band allocated to a symmetric frequency band.

Claims26

Dependent claims

An operating method for a Mobile Station (MS) operating in a Carrier Aggregation (CA) mode in a wireless communication system, the method comprising:

receiving system configuration information transmitted on at least one downlink (DL) only secondary carrier partially configured as an asymmetric frequency band from a base station (BS);
and
transmitting feedback information related to the at least one secondary carrier through a feedback channel at a feedback region of a primary carrier configured as a symmetric frequency band to the BS, wherein the feedback region is indicated in the system configuration information.

An apparatus for a Mobile Station (MS) operating in a Carrier Aggregation (CA) mode in a wireless communication system, the apparatus comprising:

a receiver configured to receive system configuration information transmitted on at least one downlink (DL) only secondary carrier partially configured as an asymmetric frequency band from a base station (BS);
and
a transmitter configured to transmit feedback information related to the at least one secondary carrier through a feedback channel at a feedback region of a primary carrier configured as a symmetric frequency band to the BS, wherein the feedback region is indicated in the system configuration information.

An operating method for a Base Station (BS) operating in a Carrier Aggregation (CA) mode in a wireless communication system, the method comprising:

transmitting system configuration information on at least one downlink (DL) only secondary carrier partially configured as an asymmetric frequency band to a Mobile Station (MS);
and
receiving feedback information related to the at least one secondary carrier through a feedback channel at a feedback region of a primary carrier configured as a symmetric frequency band from the MS,
wherein the feedback region is determined indicated in the system configuration information.

1 more element

Dependencies are inferred from the claim text.

Apparatus and method for supporting asymmetric carrier aggregation in wireless communication system

Life of this patent

Apparatus and method for supporting asymmetric carrier aggregation in wireless communication system

Life of this patent

Abstract

Claims26