Method and apparatus for performing communication in a wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsSoeng-Hun Kim, Gert Jan Van Lieshout, Kyeong-In Jeong
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Abstract
A method and apparatus for performing communication in a wireless communication system are provided. The method includes identifying a transmission mode configured for a serving cell by a Base Station (BS), by a User Equipment (UE), identifying an antenna configuration of the BS by the UE, determining the number of bits for a Rank Indication (RI) representing the number of layers based on the transmission mode and the antenna configuration, and generating an RI using the determined number of bits and transmitting the RI in transmission resources of the serving cell to the BS.
Claims20
A method for performing communication in a base station (BS) of a wireless communication system, the method comprising:
- transmitting, to a user equipment (UE), information about an antenna configuration of the BS;
- transmitting, to the UE, control information indicating a transmission mode for a serving cell;
- and
- receiving, from the UE, information about a rank indication (RI) based on a number of bits for the RI,
- wherein the number of bits for the RI is determined based on a Multiple Input Multiple Output (MIMO) capability reported to the BS by the UE, if the identified transmission mode is a first transmission mode, and
- wherein the number of bits for the RI is determined based on the antenna configuration, if the identified transmission mode is a second transmission mode.
An apparatus of a base station (BS) for performing communication in a wireless communication system, the apparatus comprising:
- a transmitter configured to transmit, to a user equipment (UE), information about an antenna configuration of the BS and control information indicating a transmission mode for a serving cell;
- and
- a receiver configured to receive, from the UE, information about a rank indication (RI) based on a number of bits for the RI,
- wherein the number of bits for the RI is determined based on a Multiple Input Multiple Output (MIMO) capability reported to the BS by the UE, if the identified transmission mode is a first transmission mode, and
- wherein the number of bits for the RI is determined based on the antenna configuration, if the identified transmission mode is a second transmission mode.
A method for performing communication in a user equipment (UE) of a wireless communication system, the method comprising:
- receiving, from a base station (BS), information about an antenna configuration of the BS;
- receiving, from the BS, control information indicating a transmission mode for a serving cell;
- and
- transmitting, to the BS, information about a rank indication (RI) based on a number of bits for the RI,
- wherein the number of bits for the RI is determined based on a Multiple Input Multiple Output (MIMO) capability reported to the BS by the UE, if the identified transmission mode is a first transmission mode, and
- wherein the number of bits for the RI is determined based on the antenna configuration, if the identified transmission mode is a second transmission mode.
An apparatus of a user equipment (UE) for performing communication in a wireless communication system, the apparatus comprising:
- a receiver configured to receive, from a base station (BS), information about an antenna configuration of the BS and control information indicating a transmission mode for a serving cell;
- and
- a transmitter configured to transmit, to the BS, information about a rank indication (RI) based on a number of bits for the RI,
- wherein the number of bits for the RI is determined based on a Multiple Input Multiple Output (MIMO) capability reported to the BS by the UE, if the identified transmission mode is a first transmission mode, and
- wherein the number of bits for the RI is determined based on the antenna configuration, if the identified transmission mode is a second transmission mode.
Dependencies are inferred from the claim text.