公开(公告)号：US20180338301A1

公开(公告)日：2018-11-22

申请号：US15776772

申请日：2017-01-11

Applicant: China Academy of Telecommunications Technology

Inventor： Xuejuan GAO ,  Xueming PAN ,  Fang-Chen CHENG

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L1/16 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0098 ,  H04L27/0006

Abstract: The present invention relates to the technical field of communications, and relates in particular to a downlink control information (DCI) transmission method and device, the DCI transmission method comprising: confirming information used indicating a bit number of a first indication field within DCI, the information comprising high layer signalling configuration information or information for whether to configure an unauthorized member carrier; according to the high layer signalling configuration information or the information for whether to configure an unauthorized member carrier, determining the bit number of the first indication field included in the DCI. The bit number of the first indication field included in the DCI is determined according to high layer signalling configuration or whether an unauthorized member carrier is configured, the bit number of the first indication field within the DCI is thereby set in a reasonable manner according to specific requirements, and a user device and a base station understand a dynamically determined ACK/NACK sequence of feedback information in a consistent manner within different scenarios.

公开(公告)号：US20180249508A1

公开(公告)日：2018-08-30

申请号：US15752889

申请日：2016-08-12

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Xuejuan GAO ,  Wijie XU ,  Yanping XING

IPC: H04W74/08 ,  H04L27/26 ,  H04W74/00 ,  H04W72/04

Abstract: Disclosed in the present application are a random access response (RAR) transmission method and device for ensuring independent transmission of RARs having different coverage enhancement levels, reducing a blind test of a physical downlink control channel performed by a terminal, and saving power consumption of the terminal. The present application provides an RAR transmission method, comprising: determining, by a network side and at least according to coverage enhancement levels corresponding to physical downlink control channels, frequency domain resources of the physical downlink control channels, wherein the frequency domain resources of the physical downlink control channels having different coverage enhancement levels are independently configured; and transmitting, by the network side, the physical downlink control channels on the frequency domain resources of the physical downlink control channels.

公开(公告)号：US20180083806A1

公开(公告)日：2018-03-22

申请号：US15564135

申请日：2016-03-16

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Yanping XING ,  Zukang SHEN ,  Xuejuan GAO

IPC: H04L25/03 ,  H04W28/04

CPC classification number: H04L25/03866 ,  H04L1/00 ,  H04L1/08 ,  H04L25/03 ,  H04W28/0236 ,  H04W28/04

Abstract: An information transmission method is provided, including steps of: in the case that a local end serves as a transmitting end and information for the local end needs to be repeatedly transmitted within a repetition time period containing a plurality of subframes, determining, by the local end, a scrambling code corresponding to each transmission time period of the repetition time period, each transmission time period corresponding to an identical scrambling code; and with respect to each transmission time period, scrambling, by the local end, a bit stream acquired after encoding the information transmitted within the transmission time period using the scrambling code corresponding to the transmission time period, and transmitting, by the local end, the scrambled bit stream to an opposite end.

公开(公告)号：US20160183195A1

公开(公告)日：2016-06-23

申请号：US14911048

申请日：2014-08-08

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Xuejuan GAO ,  Yanan LIN ,  Zukang SHEN ,  Xueming PAN

IPC: H04W52/14 ,  H04W72/04 ,  H04W52/24 ,  H04L25/02

CPC classification number: H04W52/146 ,  H04L25/0226 ,  H04W52/242 ,  H04W52/248 ,  H04W52/325 ,  H04W52/346 ,  H04W52/367 ,  H04W52/40 ,  H04W72/042

Abstract: Disclosed are a method and an apparatus for controlling uplink power, so as to solve a problem that in a scenario of double connections, when a terminal performs uplink transmission, there is no corresponding solution to control uplink power. The method in the present invention comprises: a terminal determining uplink information to be sent on an uplink carrier, the uplink information comprising uplink information corresponding to a first base station and uplink information corresponding to a second base station; and the terminal determining, according to at least one group of power control parameters pre-configured for calculating transmit power of an uplink channel bearing the uplink information, transmit power of at least one uplink channel bearing the uplink information, and sending corresponding uplink information on the at least one uplink channel of the uplink carrier according to the transmit power of the at least one uplink channel. It is ensured that the terminal uses more appropriate transmit power on the uplink carrier to send uplink information of different base stations, thereby avoiding power limitation and improving power utilization and transmission efficiency.

Abstract translation: 公开了一种用于控制上行链路功率的方法和装置，以解决在双重连接的情况下，当终端执行上行链路传输时，没有相应的解决方案来控制上行链路功率。 本发明的方法包括：确定要在上行链路载波上发送的上行链路信息的终端，所述上行链路信息包括对应于第一基站的上行链路信息和对应于第二基站的上行链路信息; 并且终端根据预先配置的用于计算携带上行链路信息的上行链路信道的发送功率的至少一组功率控制参数，确定具有上行链路信息的至少一个上行链路信道的发送功率，并且发送对应的上行链路信息 所述上行链路载波的所述至少一个上行链路信道根据所述至少一个上行链路信道的发射功率。 确保终端在上行载波上使用更合适的发射功率，发送不同基站的上行信息，避免功率限制，提高功率利用率和传输效率。