摘要:
A method of allocating a radio resource for a relay station in a wireless communication system is disclosed. The method comprise allocating a relay zone to the relay station in a subframe and transmitting a relay control channel to the relay station by using the relay zone, wherein the subframe comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols in a time domain and a plurality of subcarriers in a frequency domain, wherein the subframe is divided into a user zone used by a user equipment in a cell and the relay zone used by the relay station, and wherein the relay zone comprises some of the plurality of subcarriers. According to the present invention, a subframe structure provides backward compatibility with a legacy wireless communication system. A relay station can effectively find a radio resource allocated to the relay station, thereby decreasing a decoding time.
摘要:
The present invention relates to an access method for solving ambiguity between an initial access mobile station and a base station, wherein the ambiguity occurs in a carrier aggregation environment. When a base station transmits a downlink message including different downlink ID information through plural downlink carriers, a base station obtains the corresponding downlink ID information through a downlink carrier used by the mobile station. The mobile station transmits an uplink message using the obtained downlink ID information, and the base station extracts the downlink ID information from the uplink message in order to confirm which downlink carrier the mobile station uses.
摘要:
A method for transmitting a signal to a UE by a BS in a wireless communication system is disclosed. The method includes determining a signal transmission scheme for transmitting a signal to the UE, dividing a basic resource allocation unit, if the signal transmission scheme is CoMP transmission, allocating transmission resources to the UE using the divided basic resource allocation unit, and transmitting the signal to the UE through the allocated transmission resources.
摘要:
A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.
摘要:
A method of transmitting a scheduling request which is used to request a radio resource for uplink transmission includes configuring an uplink control channel for transmission of a scheduling request in a subframe, the subframe comprising two consecutive slots, a slot comprising a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols, the scheduling request being carried by presence or absence of transmission of the uplink control channel, and transmitting the scheduling request on the uplink control channel.
摘要:
Disclosed in a method whereby a terminal sends an uplink control signal on a wireless communication system. More specifically, the present invention comprises the steps of generating an uplink control signal, allocating uplink sending resources to the uplink control signal, and sending the uplink control signal to a base station; a time resource in the uplink transmission resources is divided into sub-frame units divided into two slots; at least one of the two slots comprises one reference symbol for transmitting a reference signal; and in the slot comprising the one reference symbol, at least one of a plurality of data symbols for transmitting data signals is dropped.
摘要:
Disclosed is a method for transmitting a sounding reference signal from a terminal to a base station in a radio communication system. More specifically, the method comprises the steps of: receiving downlink control information from a base station; checking a flag bit included in said downlink control information; checking an interpretation bit is included in said downlink control information, when said flag bit indicates an uplink; and transmitting an additional sounding reference signal and/or an uplink common channel based on said interpretation bit.
摘要:
Disclosed is a communication method in a multi-carrier system, including: allocating radio resources for transmitting signals to a middle guard band; and transmitting the signals through the radio resources; wherein the middle guard band is a frequency band positioned between used bands of a plurality of carriers, respectively, within an aggregated carrier formed by aggregating the plurality of carriers and a unit allocating the radio resources of the middle guard band is different from a unit allocating the radio resources of the used bands. A multi-carrier system uses the guard bands between the carriers to improve channel estimation performance or increase efficiency of radio resources.
摘要:
Provided is a method and device for signal transmission having good PAPR/CM characteristics. With regard to one aspect of said method, the method for transmitting a reference signal in a wireless communication signal comprises a step wherein a reference signal sequence is generated, a step wherein said reference signal sequence is divided with respect to each of multiple sub-blocks, a step wherein each of said plurality of divided reference signal sequence is subject to circular shifting, and a step wherein said plurality of circular shifted reference signals are transmitted via said plurality of sub-blocks.
摘要:
The present invention relates to a radio communication system. More particularly, the present invention relates to a reference signal transmitting method in a radio communication system, comprising the steps of generating a subframe including a control area and a data area, allocating a reference signal to a control channel mapped in the control area, and transmitting the subframe.