摘要:
The present invention provides user equipment that transmits an uplink signal in a multi-carrier supporting mobile communication system and a method therefor, and a base station device that transmits uplink transmission power information and a method therefor. In the user equipment according to the present invention, a receiving antenna receives uplink transmission power information on a particular uplink carrier from the base station via a plurality of downlink carriers. A processor determines the transmission power of a signal to be transmitted via the particular uplink carrier, based on the uplink transmission power information that has been received. A receiving antenna then transmits the signal via an uplink carrier at the transmission power determined by the processor.
摘要:
A method for transmitting a preamble for legacy support is provided. In a communication system for supporting at least one of a first system corresponding to a legacy system and a second system which corresponds to an evolved system and supports two or more scalable bandwidths, a method for transmitting a preamble for the second system is provided. A preamble sequence is generated on the basis of a smallest bandwidth of the two or more scalable bandwidths, the generated preamble sequence is mapped to a resource zone to have a repetition factor which is relatively prime to a repetition factor of a repetition factor of a preamble for the first system, and the preamble sequence mapped to the resource zone is transmitted as the preamble for the second system.
摘要:
Disclosed are a terminal device for controlling uplink transmission power and a method therefor. A receiving antenna receives uplink transmission mode change information from a base station. A processor determines a transmission power value to be used for the uplink transmission by means of an offset value corresponding to the uplink transmission mode change information. A transmitting antenna transmits an uplink signal with the determined transmission power value.
摘要:
A door protector for a vehicle is mounted on the external surface of a door of the vehicle to protect the coated layer on the door or a vehicle body from damages occurring by outside impacts or scratches. The door protector for a vehicle includes: a body having a shape of an elongated band having a length corresponding to the width of a vehicle door in left and right sides; hooks fixedly mounted on both ends of the body in such a manner as to be locked in a hook shape onto both ends of the door; cushions fixedly disposed on the body in the longitudinal direction of the body to conduct impact absorption; and a rubber magnet disposed in the longitudinal direction of the body to allow the body to be attached to the surface of the door by means of a magnetic force generated therefrom.
摘要:
A method for transmitting an information unit of a specific layer above a physical layer through a plurality of frequency allocation bands managed by the specific layer and transmitting control information identifying each of the plurality of frequency allocation bands. The control information includes a second ID into which a first ID has been converted, the first ID identifying each of the plurality of frequency allocation bands in the physical layer, the second ID identifying each of the plurality of frequency allocation bands managed by the specific layer in the specific layer. To accomplish this, a timing offset is applied to the entirety of a frame or to a preamble (synchronous channel) so that the timing offset is used as the ID. Applying a timing offset to the entirety of a frame or to a preamble (synchronous channel) can achieve an advantage of PAPR reduction.
摘要:
A method for generating/transmitting a transmission-unit symbol sequence is disclosed. In the case of transmission information, the information is modulated in time and frequency domains on the basis of a predetermined transmission unit (e.g., a transmission time interval TTI or slot), simultaneous transmission of the information is made, and then a transmission unit symbol is generated/transmitted. A transmission sequence is masked in each symbol contained in one transmission unit. Symbol-unit circular shift (cyclic shift) is applied to the masked result, so that transmission efficiency increases. A control signal transmission method for supporting a variety of formats and a signal transmission method based on a prime-length sequence are also provided.
摘要:
Provided are a method and apparatus for allocating resources for enhanced multicast broadcast service (E-MBS) data in a wireless communication system. A base station divides a frequency region into at least one frequency partition and allocates subbands of KSB,E-MBS number as the resources for the E-MBS data in the frequency partition. One sub-band includes sub-band logical resource units (SLRUs) of N1 number and the SLRUs of N1 number have continuous indexes among a plurality of physical resource units (PRUs) included in the frequency partition and are the PRUs to be allocated to contiguous resource units (CRUs).
摘要:
Disclosed is a method for configuring a ranging channel in various frame structures and using the same in a communication system. A ranging channel is effectively configured according to a data structure, namely, frame structure, transmitted and received between a mobile station (MS) and a base station (BS) in a wireless communication system, and ranging information is transmitted therethrough to thereby improve performance of a communication channel and resource efficiency. In the wireless communication system, a ranging channel is configured by using a time interval, such as an idle time, an idle symbol, an RTG, a TTG, and the like, not actually used for transmission of data or a signal in a data structure, namely, in a frame structure, transmitted and received between an MS and a BS, to transmit ranging information, so the channel performance and resource efficiency can be improved.
摘要:
A method of transmitting cyclic prefix length information when wireless access systems having different cyclic prefix lengths coexist is disclosed. The method of transmitting cyclic prefix length information comprises including the cyclic prefix length information in a preamble; and transmitting the preamble to a receiving end, whereby a transmitter can notify the receiving end of a current cyclic prefix length. Also, in a specific interval where a super frame header is defined, a single cyclic prefix length is used in a legacy support mode and a legacy disable mode, and cyclic prefix length information of other data or control channel is included in the super frame header and then transmitted to the receiving end. If different CP lengths are used in a legacy support mode of an evolved system, it is possible to solve a problem in detecting a control channel or a data channel, which may occur as the CP lengths are not distinguished from each other after preamble detection.
摘要:
A method for transmitting a control signal together with RACH transmission and a method for allocation a communication resource for the control signal transmission are disclosed. In allocating a communication resource for a control signal transmission within a transmission unit resource region for performing an RACH transmission, the present invention includes the steps of setting a resource region used for the RACH transmission to a portion of the transmission unit resource region and allocating the control signal transmission resource region unused for the RACH transmission within the transmission unit resource region.