公开(公告)号：US20210100016A1

公开(公告)日：2021-04-01

申请号：US17119442

申请日：2020-12-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Juan ZHENG ,  Chaojun LI

IPC: H04W72/12 ,  H04W72/04

Abstract: This application provides an information transmission method. The method is applied to a communications system including a request transmission resource and a feedback transmission resource that both have M overlapping time units in time domain. The method includes: when duration between an initial time unit in the M time units and a time unit that is determined by the terminal device and that is used to transmit an SR is less than preset duration, sending, by the terminal device, both the SR and the feedback information in each of the M time units; or when a time unit that is determined by the terminal device and that is used to transmit an SR is a time unit in the M time units other than an initial time unit in the M time units, sending, by the terminal device, only feedback information in each of the M time units.

公开(公告)号：US20210007126A1

公开(公告)日：2021-01-07

申请号：US16988963

申请日：2020-08-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liyan SU ,  Chaojun LI ,  Jinhuan XIA

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18

Abstract: In the communication method disclosed herein, a terminal device first receives downlink control information (DCI) from a base station, where the DCI is used to schedule a transport block (TB) to be transmitted on a downlink channel. When the DCI meets a first condition, the terminal device skips sending back a positive acknowledgement (ACK) or a negative acknowledgement (NACK), where an ACK indicates that the TB is correctly received and a NACK indicates that the TB is incorrectly received.

公开(公告)号：US20190246384A1

公开(公告)日：2019-08-08

申请号：US16270677

申请日：2019-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiafeng SHAO ,  Chaojun LI ,  Sha MA

IPC: H04W72/04

Abstract: A method for sending control information includes: determining, by a network device based on a first time-frequency domain resource for sending first control information, at least one information field included in the first control information; determining, by the network device, a quantity of bits of the first control information based on the at least one information field; and sending, by the network device, the first control information to a user terminal on the first time-frequency domain resource based on the quantity of bits of the first control information. The present application can improve data transmission efficiency.

公开(公告)号：US20190174515A1

公开(公告)日：2019-06-06

申请号：US16272093

申请日：2019-02-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chaojun LI ,  Jiafeng SHAO

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

Abstract: This application provides example physical channel sending methods and receiving methods, terminal devices, and network devices. An example physical channel sending method includes generating, by a terminal device, a physical channel, where the physical channel includes N physical channel units and N is a positive integer. The terminal device can then send the physical channel in a first time domain resource that includes M time intervals, and where the N physical channel units are located in N time intervals of the M time intervals, where M is a positive integer greater than or equal to N.

公开(公告)号：US20190082430A1

公开(公告)日：2019-03-14

申请号：US16189718

申请日：2018-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chaojun LI

IPC: H04W72/04 ,  H04L1/00 ,  H04W48/16

Abstract: The present invention provides a downlink control information sending method, a downlink control information detection method, and a device. The method includes: receiving, by a terminal device, first signaling, where the first signaling includes configuration information of search space; determining, by the terminal device based on the configuration information, a frequency domain resource or a CCE resource occupied by the search space; and detecting, by the terminal device, downlink control information in the search space. A network device may configure the search space to occupy any frequency domain resource or CCE resource. The terminal device determines, based on the first signaling, the search space configured by the network device, and obtains the downlink control information in a timely manner. This effectively improves data transmission efficiency, and in particular, resolves a problem that downlink control information of duration less than 1 ms cannot be obtained in a timely manner.

公开(公告)号：US20180343099A1

公开(公告)日：2018-11-29

申请号：US16053266

申请日：2018-08-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chaojun LI ,  Yongxia LYU

IPC: H04L5/00 ,  H04W72/12 ,  H04W28/04 ,  H04L1/18

Abstract: A data transmission method, including: receiving, by a terminal device on a first time domain resource, at least one piece of downlink data sent by a network device; and sending receiving status information to the network device on a second time domain resource. A transmission time interval of any piece of downlink data is less than a transmission time interval of the receiving status information, and the transmission time interval of the any piece of downlink data is less than 1 ms. According to the data transmission method, a transmission time interval of downlink data and a time interval between a sending time of the receiving status information and a receiving time of the at least one piece of downlink data are shortened, thereby reducing a latency.

公开(公告)号：US20180213548A1

公开(公告)日：2018-07-26

申请号：US15933633

申请日：2018-03-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chaojun LI ,  Sha MA

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18

CPC classification number: H04W72/1242 ,  H04L1/1812 ,  H04L5/0053 ,  H04W16/10 ,  H04W72/0446

Abstract: The present disclosure relates to the mobile communications field, and in particular, to a transmission resource determining technology in a wireless communications system. In a data transmission method, a network device determines a transmission resource used for data transmission, and performs data transmission with a terminal device on the determined transmission resource. A time domain resource occupied by the transmission resource in a time domain is one of N types of time domain resources, and a time length of any type of time domain resource in the N types of time domain resources is less than 1 ms. According to this method, a data transmission latency can be effectively reduced, thereby meeting a requirement for a low-latency service.

公开(公告)号：US20180124758A1

公开(公告)日：2018-05-03

申请号：US15852507

申请日：2017-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiyu YAN ,  Yang LI ,  Lei WAN ,  Sha MA ,  Xiaotao REN ,  Chaojun LI

IPC: H04W72/04 ,  H04L5/00 ,  H04W84/04

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0094 ,  H04W84/042

Abstract: The present invention provides a method for sending and receiving control information, an apparatus and a communication system. The method for sending control information includes: setting respective control bits in a downlink control information (DCI) format to generate control information applied by a network side to a terminal, wherein indication information indicating whether to swap a corresponding relationship between a transmission block and a codeword is not carried in a control bit in the DCI format, if a dedicated demodulation reference signal used to demodulate data is preconfigured by the network side for the terminal and respective codewords correspond to the same number of layers; and the indication information is carried in a control bit in the DCI format, if the dedicated demodulation reference signal used to demodulate data is not preconfigured by the network side for the terminal; and sending the generated control information to the terminal.

公开(公告)号：US20160127999A1

公开(公告)日：2016-05-05

申请号：US14757677

申请日：2015-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chaojun LI

IPC: H04W52/14 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04W52/146 ,  H04L5/1469 ,  H04W52/16 ,  H04W52/54 ,  H04W72/042

Abstract: Embodiments of the present invention provide a wireless communication method, an apparatus, and a system. The method includes: receiving, by UE in a fixed downlink subframe whose subframe number is i-KUL, at least one TPC command sent by a base station, where the at least one TPC command is carried on a PDCCH whose format is a DCI format 3/3A, and the at least one TPC command includes a TPC command of an uplink signal that is sent in an uplink subframe whose subframe number is i; determining, by the UE according to the TPC command of the uplink signal that is sent in the uplink subframe whose subframe number is i, a problem that in a scenario in which a dynamic TDD uplink-downlink subframe configuration is applied, a base station fails to receive an uplink signal.

Abstract translation: 本发明的实施例提供一种无线通信方法，装置和系统。 该方法包括：UE在子帧号为i-KUL的固定下行链路子帧中接收由基站发送的至少一个TPC命令，其中至少一个TPC命令在其格式为DCI格式的PDCCH上承载 3 / 3A，并且所述至少一个TPC命令包括在子帧号为i的上行链路子帧中发送的上行链路信号的TPC命令; 由UE根据子帧号为i的上行链路子帧中发送的上行链路信号的TPC命令确定在应用了动态TDD上行链路 - 下行链路子帧配置的情况下，基站发生故障的问题 以接收上行链路信号。

公开(公告)号：US20140105162A1

公开(公告)日：2014-04-17

申请号：US14134932

申请日：2013-12-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chaojun LI ,  Yongxia WU ,  Qiang WU ,  Jianghua LIU

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04B7/0417 ,  H04L5/0091

Abstract: The present invention discloses a method and an apparatus for transmitting control signaling. The method includes: determining that a physical downlink shared channel PDSCH transmission scheme for a non-backward compatible component carrier is a user equipment-specific reference signal UE RS-based non-precoding matrix indicator Non-PMI feedback transmission scheme or a UE RS-based up to 8 layer transmission scheme; and sending downlink control information DCI to a UE, where the DCI is used to indicate the determined PDSCH transmission scheme. The apparatus includes a determining module and a first sending module. The method and apparatus in embodiments of the present invention can expand application scenarios of the non-backward compatible component carrier, increase spectrum utilization of the system, and avoid a system capacity decrease problem caused by limitations on the application scenarios of the non-backward compatible component carrier.

Abstract translation: 本发明公开了一种用于发送控制信令的方法和装置。 该方法包括：确定用于非向后兼容分量载波的物理下行链路共享信道PDSCH传输方案是基于用户设备的参考信号基于UE RS的非预编码矩阵指示符非PMI反馈传输方案或UE RS- 基于8层传输方案; 并向UE发送下行链路控制信息DCI，其中DCI用于指示所确定的PDSCH传输方案。 该装置包括确定模块和第一发送模块。 本发明的实施例中的方法和装置可以扩展非向后兼容分量载波的应用场景，增加系统的频谱利用率，并避免系统容量减少问题，这是由于对非向后兼容的应用场景的限制 分量载体。