公开(公告)号：US20190174439A1

公开(公告)日：2019-06-06

申请号：US16323242

申请日：2017-07-17

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Rakesh TAMRAKAR ,  Runhua CHEN ,  Qiubin GAO ,  Gaping HUANG ,  Hui LI ,  Chuanjun LI ,  Yang SONG ,  Xin SU ,  Yu YANG ,  Mengjun WANG

IPC: H04W56/00 ,  H04W72/04

Abstract: A method for acquiring system information, a method for transmitting system information, a terminal, a network reception and transmission node and a storage medium are provided. The method for acquiring the system information includes: receiving a synchronization signal transmitted from a network reception and transmission node, and acquiring feature information of the synchronization signal, node information of the network reception and transmission node and a correspondence between the feature information and a transmitting position of the system information; acquiring the transmitting position of the system information corresponding to the node information based on the feature information and the correspondence: and receiving, at the transmitting position of the system information, the system information transmitted from the network reception and transmission node.

公开(公告)号：US20210083754A1

公开(公告)日：2021-03-18

申请号：US16324902

申请日：2017-06-07

Applicant: China Academy of Telecommunications Technology

Inventor： Yang SONG ,  Qiubin GAO ,  Runhua CHEN ,  Tamrakar RAKESH ,  Xin SU ,  Chuanjun LI ,  Mengjun WANG ,  Yu YANG ,  Hui LI ,  Qiuping HUANG

IPC: H04B7/08 ,  H04B7/0417 ,  H04B7/06

Abstract: The present invention relates to the technical field of wireless communications, and in particular, to a beam training method and device, for use in resolving the problems in the prior art of excessive time-consuming of a beam training process, large overhead of training signals, and relatively low efficiency. According to embodiments of the present invention, a transmit device sends beam training signals in two times. The first sending of a transmit beam training signal is for a receive device to select a transmit beam using a selected receive beam and report the transmit beam. The second sending is that the transmit device sends a receive beam training signal according to the transmit beam information report of the receive device, so as to train the received beam of the receive device. According to the embodiments of the present invention, an interactive beam training method is used to gradually search for the best transmit beam and receive beam, thereby avoiding completing beam training all at once, reducing beam training time and overhead, and improving efficiency.

公开(公告)号：US20200028549A1

公开(公告)日：2020-01-23

申请号：US16338322

申请日：2017-07-25

Applicant: China Academy of Telecommunications Technology

Inventor： Xin SU ,  Qiubin GAO ,  Runhua CHEN ,  Tamrakar RAKESH ,  Chuanjun LI ,  Mengjun WANG ,  Hui LI ,  Qiuping HUANG

IPC: H04B7/0452 ,  H04W72/04 ,  H04B7/0408 ,  H04B7/06 ,  H04L5/00

Abstract: Disclosed are a beam scanning method and a related device, used for solving the problem that, during the existing process of determining the optimal transceiving beam by performing traversal search on a combination of potential transceiving beams, a large amount of system overhead needs to be occupied, thus reducing the system efficiency and the adaptability to a time-varying channel. The method comprises: a first communication node determines at least one transmitted beam according to the optimal receiving beam group between a receiver of the first communication node and a transmitter of a second communication node; the first communication node sequentially sends a signal to the second communication node by means of the transmitter according to the determined at least one transmitted beam until the optimal transmitted beam is determined.

公开(公告)号：US20190245728A1

公开(公告)日：2019-08-08

申请号：US16331934

申请日：2017-07-24

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Hui LI ,  Qiubin GAO ,  Xin SU ,  Runhua CHEN ,  Rakesh TAMRAKAR ,  Qiuping HUANG ,  Chuanjun LI ,  Mengjun WANG

IPC: H04L27/26 ,  H04L1/00

CPC classification number: H04L27/2613 ,  H04L1/0003 ,  H04L1/0009 ,  H04L27/26

Abstract: A method for transmitting a phase noise compensation reference signal, a transmission device and a reception device are provided. The method includes: determining one or more configurations from N configurations for a transmission resource of the phase noise compensation reference signal; and transmitting the phase noise compensation reference signal according to the one or more configurations. The N configurations have different time-domain densities or different frequency-domain densities, or a plurality of configurations of the N configurations has a same time-domain density and a same frequency-domain density, where N is an integer greater than or equal to 2.

公开(公告)号：US20190166545A1

公开(公告)日：2019-05-30

申请号：US16317945

申请日：2017-07-11

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Hui LI ,  Qiubin GAO ,  Runhua CHEN ,  Chuanjun LI ,  Xin SU ,  Yang SONG ,  Rakesh TAMRAKAR ,  Yu YANG ,  Qiuping HUANG ,  Mengjun WANG

IPC: H04W48/08 ,  H04L5/00 ,  H04L27/26

Abstract: A method and a device for accessing a system information area or a network area are provided. The method includes: receiving, by a terminal, at least one initial access signal (IAS) transmitted from the system information area or the network area; and obtaining, by the terminal, one or more of a subframe boundary, a system bandwidth, a starting frequency and an ending frequency of the system information area or the network area based on the received IAS.