摘要:
A method of transmitting an ACK/NACK signal via an ACK/NACK channel including one or more tiles comprised of a plurality of OFDM symbols in a time domain and a plurality of subcarriers in a frequency domain in a wireless communication system includes generating a first codeword by applying a first spreading code to data symbols and pilot symbols, wherein the tile includes a plurality of data subcarriers and a plurality of pilot subcarriers, the data symbols are allocated to the plurality of data subcarriers and the pilot symbols are allocated to the plurality of pilot subcarriers, generating a second codeword by allocating data symbols applied a second spreading code to the plurality of data subcarriers, and transmitting the first and second codewords.
摘要:
A method of transmitting an ACK/NACK signal via an ACK/NACK channel including one or more tiles comprised of a plurality of OFDM symbols in a time domain and a plurality of subcarriers in a frequency domain in a wireless communication system includes generating a first codeword by applying a first spreading code to data symbols and pilot symbols, wherein the tile includes a plurality of data subcarriers and a plurality of pilot subcarriers, the data symbols are allocated to the plurality of data subcarriers and the pilot symbols are allocated to the plurality of pilot subcarriers, generating a second codeword by allocating data symbols applied a second spreading code to the plurality of data subcarriers, and transmitting the first and second codewords.
摘要:
A method and an apparatus for transmitting feedback of a mobile station (MS) in a wireless communication system supporting a multi-carrier operation are provided. The method includes transmitting feedback information to a base station, and in this case, the feedback information is transmitted through a MAC control message and the feedback information includes carrier information of an activation carrier related to the MAC control message.
摘要:
A method and an apparatus for transmitting feedback of a mobile station (MS) in a wireless communication system supporting a multi-carrier operation are provided. The method includes transmitting feedback information to a base station, and in this case, the feedback information is transmitted through a MAC control message and the feedback information includes carrier information of an activation carrier related to the MAC control message.
摘要:
A method for releasing resources allocated by persistent scheduling is described. A base station (BS) inserts a persistent allocation release indication message into a control channel, wherein the persistent allocation release indication message includes at least one resource index indicating persistent allocation resources to a mobile station (MS), broadcasts the control channel, and releases the persistent allocation resources corresponding to the resource index. Since a release message for persistent allocation, a channel quality indicator channel, feedback polling allocation, etc. is inserted for transmission into a control channel which can be received by all MSs, overhead which occurs during resource release can be minimized irrespective of transmission rates varying with MSs.
摘要:
A method for allocating a radio resource in a wireless communication system comprises defining a plurality of resource regions within a frame, a resource region comprising at least one orthogonal frequency division multiple access (OFDMA) symbol and at least one subchannel, configuring radio resource allocation information indicating which resource region selected from the plurality of resource regions is allocated to a UE, the radio resource allocation information comprising at least one resource region identifier (ID), a resource region ID indicating a resource region selected from the plurality of resource regions, and transmitting the radio resource allocation information to the UE.
摘要:
A method for allocating a radio resource in a wireless communication system comprises defining a plurality of resource regions within a frame, a resource region comprising at least one orthogonal frequency division multiple access (OFDMA) symbol and at least one subchannel, configuring radio resource allocation information indicating which resource region selected from the plurality of resource regions is allocated to a UE, the radio resource allocation information comprising at least one resource region identifier (ID), a resource region ID indicating a resource region selected from the plurality of resource regions, and transmitting the radio resource allocation information to the UE.
摘要:
A method for performing a bandwidth request procedure in a wireless communication system includes: transmitting a bandwidth request indicator and a bandwidth request message through a bandwidth request channel; receiving an uplink grant message indicating uplink radio resource in response to the bandwidth request indicator and the bandwidth request message; and transmitting uplink data after receiving the uplink grant message, wherein the uplink grant message includes information regarding the type of the uplink grant message. A bandwidth request procedure can be performed quickly and effectively.
摘要:
A method of performing a handover in a wireless communication system employing a macro base station and a femto base station is provided. The method comprising: monitoring an uplink signal transmitted from a user equipment to the macro base station; transmitting a handover initiation message to the macro base station on the basis of a result of comparing the uplink signal's strength obtained by the monitoring with a reference value; and performing a handover of the user equipment from the macro base station to the femto base station. According to the present invention, there is provided a method of initiating a handover by a femto base station by fining user equipments located in a cell coverage of the femto base station. In addition, a signaling overhead is reduced by utilizing previously existing information such as uplink transmit power.
摘要:
A method for supporting a handover on the basis of the distance from an intermediate access point to a user equipment includes receiving uplink message set information of the user equipment from a serving base station of the user equipment; receiving the uplink message transmitted by predetermined transmitting power from the user equipment, and detecting the user equipment which has sent the uplink message on the basis of the uplink message set information; determining the receiving power by which said uplink message is received; calculating the distance between the intermediate access point and the detected user equipment by using said predetermined transmitting power and said receiving power; and performing a subsequent handover based on the distance calculated in the previous step.