摘要:
The present invention relates to a method for transmitting a synchronization channel for using a synchronization channel as a phase reference when decoding a broadcast channel, the method includes using a pre-decided shift value for each antenna, where the shift value is pre-decided with a user equipment, so as to apply circular shifts to sequences of the synchronization channel, and transmitting the sequences having the circular shifts applied thereto from a base station to the user equipment. In performing time/frequency domain synchronization in the synchronization channel, regardless of the number of transmission antennae used by the base station when transmitting signals, the synchronization process may be performed.
摘要:
A data transmission method in a wireless communication system is provided. The method includes allocating a plurality of pilot resources for supporting pilot transmission through a plurality of antennas, and if there are residue pilot resources not used in the pilot transmission among the plurality of pilot resources, transmitting data by using the residue pilot resources.
摘要:
The present invention provides a method of performing communication using a TDD (Time Division Duplex) mode, the method comprising receiving, from a second system, TDD frame configuration information of the second system, which comprises information on punctured symbol, the information on punctured symbol to be obtained based on TDD frame configuration information of a first system and operating based on the received TDD frame configuration information of the second system.
摘要:
A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.
摘要:
A method for transmitting and receiving signals using multi-band Radio Frequencies (RFs) is provided. The method includes transmitting/receiving control information identifying a subsidiary carrier frequency band for a user equipment via a primary carrier frequency band of the user equipment, wherein the control information includes information of a second ID assigned to a first ID of the subsidiary carrier frequency band among a plurality of first IDs, the first ID identifying the subsidiary carrier frequency band in the physical layer and the second ID identifying the subsidiary carrier frequency band in the specific layer.
摘要:
A method for uplink transmission in an OFDMA system is provided. The subcarrier transmission method includes arranging 4 pilot REs at different positions of a frequency axis in a basic unit when the basic unit includes 4 subcarriers on the frequency axis and 6 OFDM(A) symbols in a time axis, arranging data REs at remaining positions of the basic unit, and transmitting the basic unit to a receiving end.
摘要:
Described is a method for managing the identification information of a relay station/femtocell/picocell. It is suggested that the identification information of the relay station/femtocell/picocell inherits either a first or second partial cell ID of the identification information allocated to a region that covers the relay station/femtocell/picocell if the identification information of the relay station/femtocell/picocell comprises the first and second partial cell IDs. At this time, the inherited ID may be a sector ID. The first and second partial cell IDs may or may not have a hierarchical structure.
摘要:
The present invention provides a method of performing communication using a TDD (Time Division Duplex) mode, the method comprising receiving, from a second system, TDD frame configuration information of the second system, which comprises information on punctured symbol, the information on punctured symbol to be obtained based on TDD frame configuration information of a first system and operating based on the received TDD frame configuration information of the second system.
摘要:
A method for generating a preamble for a random access in a wireless communication system is provided. The method includes: dividing a preamble sequence into sequence subsets each corresponding to each of a plurality of antennas; and generating a preamble by using the sequence subsets corresponding to each of the plurality of antennas. A method for generating a preamble for a random access supporting multiple antennas in a wireless system can be provided.
摘要:
A method of performing communication in a wireless communication system is disclosed. In performing ranging, which is performed by a terminal in a wireless communication system supporting a normal scheme and a legacy scheme, the present invention includes selecting a specific ranging structure from a first ranging structure supporting the normal scheme and a second ranging structure supporting the legacy scheme, and transmitting a ranging signal using the specific ranging structure, wherein the first ranging structure and the second ranging structure are set to differ in at least one of a time resource, a frequency resource and a code resource.