公开(公告)号：US20150230251A1

公开(公告)日：2015-08-13

申请号：US14609940

申请日：2015-01-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyeong Sook PARK ,  Jun Woo KIM ,  Youn Ok PARK

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04W74/0866

Abstract: The present invention relates to a data transmitting method using a bandwidth request channel and a user terminal and a base station conducting the same. The present invention provides a communication method by a user terminal which transmits data to a base station via a bandwidth request channel, including: generating a preamble for bandwidth request; determining whether a message for the bandwidth request is generated; generating a first signal value to be operated with the preamble when it is determined that the message is generated and generating a second signal value to be operated with the preamble when it is determined that the message is not generated; operating the preamble with the generated first signal value or second signal value; and transmitting a signal including the operated preamble to the base station, thereby reducing overhead occurring when the bandwidth request information is demodulated.

Abstract translation: 本发明涉及使用带宽请求信道的数据发送方法和用户终端以及进行该带宽请求信道的基站。 本发明提供了一种用户终端的通信方法，其通过带宽请求信道向基站发送数据，包括：生成带宽请求的前同步码; 确定是否生成用于所述带宽请求的消息; 当确定所述消息被产生时，产生要与所述前导码一起操作的第一信号值，并且当确定不生成所述消息时，生成要与所述前导码一起操作的第二信号值; 以所生成的第一信号值或第二信号值来操作前同步码; 以及将包括所操作的前导码的信号发送到所述基站，从而减少当所述带宽请求信息被解调时发生的开销。

公开(公告)号：US20220247604A1

公开(公告)日：2022-08-04

申请号：US17541143

申请日：2021-12-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyeong Sook PARK

IPC: H04L25/03 ,  H04L1/00

Abstract: An operation method of a receiving apparatus may comprise: receiving an N-th data block belonging to a frame including a plurality of data blocks from a transmitting apparatus, each of the plurality of data blocks including a data period and a UW period; storing a first UW received in a UW period of the N-th data block in a buffer; receiving an (N+1)-th data block belonging to the frame from the transmitting apparatus; estimating a phase noise in a time domain by combining the first UW with a second UW received in a UW period of the (N+1)-th data block; and applying time-domain compensation according to the estimated phase noise to the (N+1)-th data block, and demodulating data of the (N+1)-th data block, wherein the first UW and the second UW are configured with a same sequence.

公开(公告)号：US20170181193A1

公开(公告)日：2017-06-22

申请号：US15381960

申请日：2016-12-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyeong Sook PARK ,  IL GYU KIM ,  Jun-Woo KIM

IPC: H04W74/08 ,  H04W16/28 ,  H04B17/318

CPC classification number: H04B17/318 ,  H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04W74/004

Abstract: Disclosed herein are an apparatus and a method for receiving uplink data to determine whether to use a reception beam group in reception of the uplink data on the basis of a preamble for a random access or a CQI included in a feedback.

公开(公告)号：US20230217390A1

公开(公告)日：2023-07-06

申请号：US18092555

申请日：2023-01-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyeong Sook PARK

IPC: H04W56/00 ,  H04L5/00

CPC classification number: H04W56/0035 ,  H04L5/0051 ,  H04L5/0053

Abstract: A method for transmitting a PTRS by a transmitting node may include: identifying a time density and a frequency density of PTRS; identifying a first offset based on the frequency density of PTRS and a second offset based on N times the frequency density of PTRS, N being an integer equal to or greater than 2; determining a position of a subcarrier to transmit a first PTRS and a position of a subcarrier to transmit a second PTRS using the first offset and the second offset; determining a resource block (RB) to transmit each of the first PTRS and the second PTRS from resources allocated to a receiving node; configuring a data channel including data, demodulation reference signals (DMRSs) for demodulation of the data, the first PTRS, and the second PTRS; and transmitting the data channel to the receiving node.

公开(公告)号：US20160192329A1

公开(公告)日：2016-06-30

申请号：US14948554

申请日：2015-11-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyeong Sook PARK ,  Yong Su LEE ,  Youn Ok PARK

IPC: H04W72/02 ,  H04W72/08 ,  H04W56/00 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04W72/02 ,  H04B7/0404 ,  H04B7/0408 ,  H04B7/088 ,  H04B17/318 ,  H04B17/327 ,  H04B17/364 ,  H04W56/0065

Abstract: The exemplary embodiment of the present invention provides a beam selecting apparatus of a fixed beam terminal, including: a delay time measuring unit which measures delay times of a plurality of signals received through a plurality of beams; a beam selecting unit which compares a threshold value selected based on the measured delay time and a signal strength of each of the plurality of signals to select a beam; and a switching type beam former which operates the plurality of beams in accordance with the selected beam.

Abstract translation: 本发明的示例性实施例提供了一种固定波束终端的波束选择装置，包括：延迟时间测量单元，其测量通过多个波束接收的多个信号的延迟时间; 波束选择单元，其将基于所测量的延迟时间选择的阈值与所述多个信号中的每一个的信号强度进行比较以选择波束; 以及根据所选择的光束操作所述多个光束的开关型光束形成器。

公开(公告)号：US20150229396A1

公开(公告)日：2015-08-13

申请号：US14615454

申请日：2015-02-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoon LEE ,  Hyeong Sook PARK ,  Kyung Yeol SOHN ,  Youn Ok PARK

IPC: H04B10/2575 ,  H04W72/04

CPC classification number: H04J14/0272 ,  H04B10/25753 ,  H04B2210/07

Abstract: The present invention relates to a signal processing apparatus and method of a basestation. The apparatus according to the present invention includes a plurality of first processing units which allocates transmission data to a predetermined frequency band and transmits a transmission signal in which control information is allocated to a guard band in the predetermined frequency band; a plurality of second processing units which extracts the control information from the guard band in the predetermined frequency band for a reception signal to perform a corresponding operation and extracts the transmission data from the predetermined frequency band to transmit the transmission data through the antenna; and an optical transmitting unit which combines a plurality of transmission signals received from the plurality of first processing units into one signal to transmit the signal to the plurality of second processing units through the optical cable.

Abstract translation: 本发明涉及基站的信号处理装置和方法。 根据本发明的装置包括：多个第一处理单元，其向预定频带分配传输数据，并将控制信息分配给预定频带中的保护频带的发送信号; 多个第二处理单元，从接收信号的规定频带的保护频带中提取控制信息，进行相应的动作，从规定的频带取出发送数据，通过天线发送发送数据; 以及光发送单元，其将从所述多个第一处理单元接收的多个发送信号组合成一个信号，以通过所述光缆将所述信号发送到所述多个第二处理单元。