China Academy of Telecommunications Technology

Datang Mobile Communications Equipment Co., Ltd.

Other

Rakesh Tamrakar

Qiubin Gao

Runhua Chen

Hui Li

Xin Su

Qiuping Huang

Wenhong Chen

Mengjun Wang

Chuanjun Li

Ranran Zhang

Meifang Jing

Shaohui Sun

Xueming Pan

Deshan Miao

Yang Song

Yu Yang

Zukang Shen

Rui Zhao

Guojun Xiao

Shanzhi Chen

Xuejuan Gao

Li Liu

Fangchen Cheng

Fei Qin

Yu Chan Yang

Jinbo Zhao

Deshan Miu

Chun Luo

A signal processing method and device are provided. The method includes indicating a first uplink sounding reference signal resource to a terminal, wherein the first uplink sounding reference signal resource is used for uplink beam scanning; receiving a uplink sounding reference signal transmitted by the terminal by using the first uplink sounding reference signal resource; determining a target uplink sounding reference signal based on the uplink sounding reference signal transmitted by the terminal, and transmitting an identifier of the target uplink sounding reference signal to the terminal; indicating a second uplink sounding reference signal resource to the terminal, the second uplink sounding reference signal resource being used to cause the terminal to transmit an uplink sounding reference signal for channel measurement based on the identifier of the target uplink sounding reference signal and the second uplink sounding reference signal resource.

Signal processing method and device

A method for determining a bundling size, user equipment and a network-side device are provided The method includes: reporting, by user equipment, capability information to a network-side device, where the capability information is used to indicate whether the user equipment supports one-physical resource block bundling, and receiving a bundling size set configured by the network-side device for the user equipment according to the capability information, where supporting the one-physical resource block bundling indicates that a turn-off of a physical resource block bundling function is supported; and/or using, by the user equipment, a default bundling size or a bundling size configured via a higher-layer signaling to transmit data if the network-side device turns off a function of dynamic bundling size adjustment.

Method for determining bundling size, user equipment and network-side device

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.

Method and device for accessing system information area or network area

The present disclosure provides an interference measurement method, a UE and a network side device. The interference measurement method includes: receiving, by the UE, configuration information about an interference measurement reference signal resource and an interference measurement parameter from a network side device; receiving, by the UE, an interference measurement reference signal on the interference measurement reference signal resource based on the configuration information; and calculating, by the UE, an interference estimation value of an interference signal based on the interference measurement parameter and the interference measurement reference signal.

Interference measurement method, user equipment and network side device

A method and a device for transmitting downlink reception beam training signals are provided. The method at the second device side includes: receiving a downlink reception beam training trigger notification message sent by a first device; receiving downlink reception beam training signals sent by the first device, based on the downlink reception beam training trigger notification message; and performing a downlink reception beam training based on the downlink reception beam training signals. The method at the first device side includes: sending a downlink reception beam training trigger notification message to a second device when determining that a downlink reception beam training is to be performed for the second device, and sending downlink reception beam training signals to the second device after the downlink reception beam training trigger notification message is sent to the second device.

Method and device for training downlink beams

The present disclosure provides an indication method, including: determining first transmission resources related to a transmission channel for a large-scale channel parameter or a group of large-scale channel parameters, and transmitting configuration information about the first transmission resources to a terminal device via first signaling, the first transmission resources being transmission resources for K downlink reference signals, K being a positive integer; and selecting second transmission resources from the first transmission resources in accordance with a transmission parameter used by the transmission channel, and transmitting indication information about the second transmission resources to the terminal device via second signaling, the second transmission resources being transmission resources for L downlink reference signals, L being a positive integer, and K being greater than or equal to L.

Methods for indicating and determination large-scale channel parameter, base station and terminal device

A method and an apparatus for determining an uplink transmission beam are provided. The method includes: a base station transmitting uplink transmission beam indication information to a terminal; where the uplink transmission beam indication information includes beam type indication information, the beam type indication information is used to indicate that the uplink transmission beam for the terminal is obtained based on uplink reference signals, or the beam type indication information is used to indicate that the uplink transmission beam for the terminal is obtained based on downlink reference signals, so as to ensure that the base station is capable of selecting an uplink transmission beam for the terminal.

Method and apparatus for determining uplink transmission beam

A data transmission method and a data transmission device are provided. The method includes: receiving first indication information sent by a network side device, the first indication information is used to instruct the UE to send a first signal; and determining actual first uplink transmission characteristic of the first signal when valid first uplink transmission characteristic of the first signal is not obtained, and sending the first signal through the actual first uplink transmission characteristic, or not sending the first signal when valid first uplink transmission characteristic of the first signal is not obtained.

Data transmission method and data transmission device

The present disclosure provides a reference signal transmission method, a reference signal transmission device, a base station and a user equipment. The transmission method of the present disclosure includes: implicitly or explicitly indicating to a user equipment (UE), position information of a target subcarrier for mapping a target phase tracking reference signal (PTRS) port, among subcarriers occupied by a target demodulation reference signal (DMRS) port. The target DMRS port is a DMRS port associated with the target PTRS port.

Reference signal transmission method, reference signal transmission device, base station and user equipment

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.

Methods for acquiring and transmitting system information, terminal, network reception and transmission node and storage medium

Provided in the present disclosure are a precoding matrix indication method, a terminal, and a network device, the method includes: receiving, by a terminal, a control signaling transmitted from a network side device, wherein the control signaling includes N bits of precoding information, and the N is a positive integer; determining, by the terminal, a quantity of precoding granules according to a scheduling resource, and determining, by the terminal, bits of the precoding information of each of the precoding granules in the N bits of precoding information according to the quantity of the precoding granules, wherein each of the precoding granules includes at least one subband, and each of the at least one subband includes at least one PRB; and acquiring, by the terminal, a precoding matrix indicated by the bits of the precoding information of each of the precoding granules.

Precoding matrix indication method, terminal, and network side device

A CSI feedback method and a CSI feedback device are provided. The CSI feedback method includes: determining a first precoding matrix in a set of first precoding matrices, and determining a first precoding matrix index value corresponding to the first precoding matrix; determining a second precoding matrix in a set of second precoding matrices, and determining a second precoding matrix index value corresponding to the second precoding matrix, the second precoding matrix including a beam selection section for selecting beams from the beam groups for each antenna group and a phase adjustment section for adjusting phases among the plurality of antenna groups; and feeding back the first precoding matrix index value and the second precoding matrix index value to an access device, so as to enable the access device to select corresponding precoding matrices from the set of first precoding matrices and the set of second precoding matrix in accordance with the first precoding matrix index value and the second precoding matrix index value, and implement calculation on the selected precoding matrices to obtain a precoding matrix for data transmission.

Channel state information feedback method and device

A triggering method and a transmitting method for an uplink reference signal in a communication system, apparatuses thereof, and a storage medium are provided. The communication system includes at least two different signal parameters. The triggering method applied to a network side includes: generating, by the network side, a trigger signaling for triggering a terminal to transmit the uplink reference signal to the network side for one or more times; and transmitting, by the network side, the trigger signaling to the terminal.

Triggering method and transmitting method for uplink reference signal in communication system, apparatuses thereof, and storage medium

Embodiments of the present disclosure provide a signal processing method and a signal processing device, which relate to the field of communication technology and used for the purpose of saving signaling resources. The signal processing method provided by embodiments of the present disclosure includes: transmitting a first indication message to a terminal device, wherein the first indication message is to trigger the terminal device to transmit feedback information on pilot signals; transmitting N downlink pilot signals to the terminal device, where N is an integer greater than or equal to 2, and the transmission manner of the N downlink pilot signals is semi-persistent transmission or aperiodic transmission, so that the terminal device, according to an acquired precoding manner of the downlink pilot signals and the first indication message, determines a feedback manner of the feedback information on the N downlink pilot signals and performs feedback, and wherein the feedback manner includes not feeding back or one-time feeding back of the feedback information on the N downlink pilot signals. In the embodiments of the present disclosure, the base station or the terminal device may not transmit feedback information on a plurality of pilot signals, or may one-time transmit feedback information on a plurality of pilot signals, thereby effectively saving signaling resources.

Embodiments of the present disclosure provide a data transmission method, a data transmission device, a network side device and UE. The data transmission method is applied to a first device and includes: transmitting Uplink (UL) Sounding Reference Signal (SRS) resource configuration information to a second device, where the SRS resource configuration information indicates K SRS resources; receiving an SRS signal transmitted from the second device according to the SRS resource configuration information; determining an SRS Resource Indicator (SRI), where the SRI indicates L SRS resources in the K SRS resources, L is an integer that is larger than or equals 1 and L is less than or equals K; and transmitting the SRI to the second device.

Growing community of inventors

Beijing, China

Rakesh Tamrakar