Abstract:
In this disclosure, methods for pre-compensation of the phase shifting error, and apparatuses for the same are disclosed. In one example, a device performs precoding of a digital signal, while acquiring information on an error caused by a phase shifting of the precoding. Then, the device performs phase compensation on the digital signal based on the acquired information. Here, the phase compensation may compensate different amount of phase based on an amount of the phase shifting of the precoding. This phase compensated-digital signal is converted to an analogue signal, and is transmitted to a receiver.
Abstract:
In this disclosure, methods and apparatus for managing interference are disclosed. In one example, the first station receives the first signal from the base station. The first station acquires information on a specific processing scheme of a second station for processing the first signal to be transmitted to a third station at the second station. The first station receives a second signal from the base station while the second station transmits the first signal to the third station. Here, since the first station has knowledge on the first signal and the information on the specific processing scheme, it can manage interference caused by the first signal from the second station.
Abstract:
The present invention provides hierarchical modulation methods for robust symbol transmission and reception in a wireless access system, and devices supporting same. A method for transmitting a hierarchically modulated (HM) symbol in a wireless access system, according to an embodiment of the present invention, comprises the steps of: generating a first symbol; generating a second symbol; generating an HM symbol by combining the first symbol and the second symbol; and transmitting the HM symbol, wherein the first symbol can be generated by means of a spatial multiplexing (SM) technique, a beam-forming technique, or a space-time coding technique and the second symbol can be generated by means of a spatial multiplexing (SM) technique, a beam-forming technique, or a space-time coding technique.
Abstract:
A method for transmitting data by a user equipment (UE), includes configuring a Physical Uplink Shared Channel (PUSCH) configuration related to a physical random access channel (PRACH), wherein the PUSCH configuration includes parameters fora time interval for allocating PUSCH zones and a number of contiguous PUSCH zones in time domain, and transmitting the PRACH and a PUSCH based on the PUSCH configuration.
Abstract:
There is provided a method for receiving, by a user equipment, data using a 2-dimensional (2-D) channel-based transmission scheme, the method comprising: receiving information about allocation of a resource from a base station, wherein the 2D channel-based transmission scheme is applied to the resource; and receiving data on the resource according to the 2D channel-based transmission scheme and based on the resource allocation information.
Abstract:
In a wireless communication system, a transmission device inputs, in some of N input bit positions of a polar code having the size N, input bits including D-bit information and X-bit user equipment (UE) ID according to a predetermined bit allocation sequence. The transmission device encodes the input bits by using the polar code. The transmission device transmits an encoded output sequence.
Abstract:
A method for a communication apparatus selectively operating a duplex mode in a wireless communication system may comprise the steps of: operating in a half-duplex radio (HDR) mode in a resource including a physical channel or a signal used for initial access prior to radio resource control (RRC) connection; and operating in a full duplex radio (FDR) mode after the initial access.
Abstract:
In a wireless communication system, a transmission device generates (K+J) bits by adding J cyclic redundancy check (CRC) bits to K information bits, and interleaves the (K+J) bits according to a seed value-based interleaving pattern. The transmission device encodes the bits interleaved according to the interleaving pattern, using a polar code. The seed value permutates the CRC bits, and a value previously determined according to K is used as the seed value.
Abstract:
Disclosed is an encoding method of a spatially coupled-low density parity Check (SC-LDPC) code of a terminal. The encoding method of the SC-LDPC code of the present disclosure can comprise: a step of generating a plurality of decomposition matrices by decomposing a base matrix of a preset LDPC block code. a step of generating a base matrix of the SC-LDPC code by spatially coupling the plurality of decomposition matrices in accordance with the termination length. a step of generating a circulant shift value matrix from the base matrix of the SC-LDPC code. a step of generating a plurality of lifting values for the base matrix of the SC-LDPC code. and a step for encoding an input signal by using a generator matrix defined by means of the base matrix of the SC-LDPC code, the circulant shift value matrix, and the plurality of lifting values. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.
Abstract:
Disclosed are a method for dividing a transport block of a low density parity check (LDPC) code and an apparatus therefor. A method for dividing a transport block of an LDPC code according to the present disclosure can improve the performance of the LDPC code by dividing the transport block using a minimum number of code blocks. In addition, it is possible to minimize shortening bits by making the size of some of the code blocks smaller than the size of the other code blocks. Further, it is possible to prevent performance degradation due to a minimum size code block by minimizing the number of the code blocks and performing shortening on a large size code block.