Samsung Electronics Co., Ltd.

University of Utah Research Foundation

Wake Forest University

Cnpc USA Corporation

China National Petroleum Corporation

Beijing Huamei Inc.

Chuang Zhang

Chen Qian

Di Su

Peng Lin

Bin Yu

Qi Xiong

Yingjie Zhang

Zeev Valentine Vardeny

Chengjun Sun

Hyun Woo Koo

Ohyun Kwon

Byoungki Choi

Xu Wang

Bo Zhou

Jiaqing Yu

Chris X Cheng

Xiongwen Yang

Youngjae Park

Jianhua Guo

Oana Diana Jurchescu

Chi Ma

Dali Sun

Yaochuan Mei

Zhiyong Pang

Shijun Qiao

For supporting higher data rates, resource configuration includes: acquiring, by a terminal, a configuration of physical resources; and performing, by the terminal, transmission according to the configured physical resources, wherein performing, by the terminal, transmission according to the configured physical resources comprises one of: neither performing, by the terminal, uplink transmission nor performing downlink reception on the configured physical resources; performing, by the terminal, only downlink reception on the configured physical resources; and performing, by the terminal, only uplink transmission on the configured physical resources.

Configuring physical resources for interference cancellation

There is provided a power headroom report method, a configuring method, a power control method, a data transmission method, a terminal, a base station and an apparatus of the same. The data transmission method may include: acquiring configuration information for uplink or downlink data transmission; determining whether a front loaded reference signal is transmitted according to the acquired configuration information; in response to determining that the reference signal is transmitted, transmitting the reference signal before the data transmission or at the same time when the data transmission starts and performing uplink data transmission or downlink data reception; and in response to determining that the reference signal is not transmitted, directly performing the uplink data transmission or the downlink data reception.

Power headroom report, configuring, power control, and data transmission method, apparatus, terminal, and base station

A method includes performing blind detection on a PDCCH in at least one subframe or slot to acquire first downlink control information and second downlink control information; and performing uplink data transmission and downlink data transmission with a base station according to the acquired first downlink control information and second downlink control information, wherein the first downlink control information is one of downlink control information for uplink scheduling grant and downlink control information for downlink scheduling, and the second downlink control information is the other one of the downlink control information for uplink scheduling grant and the downlink control information for downlink scheduling, and wherein a location where a PDCCH carrying the second downlink control information is detected is associated with related information of the first downlink control information, or the first downlink control information and the second downlink control information are carried on the same PDCCH.

Detecting method and transmitting method of physical downlink control channel, and corresponding equipments

A terminal device and a method for measuring cross-link interference. The method includes receiving time-frequency resource configuration information from a base station, wherein the time-frequency resource configuration information includes configuration information of measurement time-frequency resources for measuring the cross-link interference. The method also includes determining measurement time-frequency resources for measuring the cross-link interference according to the time-frequency resource configuration information. The method further includes measuring the cross-link interference on the measured time-frequency resources and feeding back the measurement result of the cross-link interference to the base station.

Method, terminal device, base station, computer readable medium for measuring cross-link interference, and methods and apparatuses for random access preamble allocation, determination, and data transmission

The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). The disclosure provides a remote interference management method, a gNB, an electronic device, a readable storage medium, and a base station for performing inter-base station interference coordination. The method includes steps of: determining, by a gNB, a mapping relationship between a gNB set ID and a RIM-RS according to received configuration information; transmitting, by the gNB, the RIM-RS according to the allocated gNB set ID and the mapping relationship; and/or performing RIM-RS detection, by the gNB, determining gNB set ID information through the detected RIM-RS according to the mapping relationship, and reporting the determined gNB set ID information. The present disclosure determines the mapping relationship between the gNB set ID and the RIM-RS according to the received configuration information, and further transmits and/or detects the RIM-RS based on the mapping relationship, thus simplifying signaling interaction information and improving the communication flexibility of the RIM-RS with multiple functions. The base station includes: a transceiver, configured to transmit signals and/or receive signals; and a processor, configured to: control the transceiver to receive a physical signal transmitted by a second base station and perform interference measurement based on the received physical signal; and control the transceiver to report an interference measurement result to the second base station or a management center, to cause the second base station to perform interference coordination for at least the first base station based on the interference measurement result reported by the first base station or configuration by the management center.

Remote interference management method, gNB, electronic device, and readable storage medium

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method of measuring interference and a corresponding device. The method of measuring interference includes: receiving a downlink reference signal from abase station; based on a received downlink reference signal of a first category, acquiring interference strength information of co-channel interference or self-interference caused by a user equipment (UE), which performs uplink transmission on a time frequency resource where the received downlink reference signal of the first category is transmitted, to a current user equipment, or information for the base station to acquire the interference strength information of the co-channel interference or the self-interference; and reporting the acquired interference strength information or the acquired information for the base station to acquire the interference strength information to the base station, wherein the downlink reference signal of the first category is: a downlink reference signal transmitted on a time frequency resource with scheduled uplink transmission. According to the method of measuring interference and the corresponding device, interference strength of co-channel interference between UEs or self-interference of a user equipment can be measured accurately. The present disclosure provides a method and apparatus for a first terminal to transmit information on demodulation failure to a base station in a wireless communication system, and a method and apparatus for a base station to schedule uplink transmission based on the fed back information on demodulation failure. The method for the first terminal includes: receiving and demodulating data from the base station; determining at least one demodulation failure reason respectively associated with at least one second terminal causing inter-terminal interference to the first terminal, when demodulation of the data fails; generating information on demodulation failure based on the determined at least one demodulation failure reason; and transmitting the information on demodulation failure to the base station. The application relates to a method, a base station (BS), a user equipment (UE) and a system thereof for channel switching. The method includes: receiving, from the UE, information indicating that the UE has a full-duplex communication capability; transmitting, to the UE, control signaling notifying the UE to activate the full-duplex communication capability; and scheduling full-duplex transmission for the UE after the UE completes initialization of a self-interference cancellation module, wherein, the base station further configures a full-duplex mode timer and notifies the UE of configuration of the full-duplex mode timer. The present disclosure provides a base station, an apparatus and operation methods thereof for performing interference processing in a wireless communication system. The base station is configured to allocate resources for a plurality of apparatuses communicating with the base station based on a level of inter-apparatus interference among the plurality of apparatuses; and to indicate the allocated resources to the plurality of apparatuses. The apparatus is configured to acquire, from a base station, resources allocated for the apparatus by the base station based on a level of inter-apparatus interference among a plurality of apparatuses communicating with the base station; and to communicate based on the allocated resources.

Method and apparatus for measuring interference, feeding back demodulation related information and scheduling terminals, channel switching, and interference processing

The present disclosure provides a method and an apparatus for self-interference cancellation, a terminal and a base station are disclosed. The method includes truncating a signal based on a detection window, where the signal comprises a receive signal and a self-interference signal which is associated with a transmit signal, and a length of the detection window is less than a symbol length, performing self-interference channel estimation to obtain an estimation of a self-interference channel, based on the truncated signal and a first reference signal which is carried by the transmit signal and used for self-interference channel estimation, where the first reference signal has a comb structure in frequency domain, and performing self-interference cancellation based on the transmit signal and the estimation of the self-interference channel. The method can reduce the influence on the accuracy of self-interference channel estimation due to inter-symbol interference caused by timing misalignment. And, the present disclosure provides a method and device for transmitting a first physical signal in a wireless communication system, the method including: mapping a sequence of each antenna port for the first physical signal to a same plurality of subcarriers on same one or more OFDM symbols based on a frequency-domain mapping pattern of the first physical signal; and transmitting the first physical signal.

Method and apparatus for processing signals in a communication system

The present disclosure provides a method of scheduling for a UE. The method includes dividing M UEs into N groups, wherein a distance metric between each UE in a group and the center of the group does not exceed a first predetermined threshold, where M and N are positive integers; pairing the N groups, wherein a distance metric between centers of the two paired groups is greater than a second predetermined threshold; and in a case where there is a group paired with a group to which a first UE for which scheduling is to be performed belongs, scheduling transmissions in different directions respectively for the first UE and the second UE from the paired group on the same time-frequency resource. The present disclosure also provides a signal transmission method, a base station, a UE and a computer readable medium.

Method and apparatus for performing communication in wireless communication system

A transmission method of a physical signal, a terminal, and a base station are provided. The transmission method may include receiving first configuration information, determining a measurement time-frequency resource for a residual self-interference measurement based on the first configuration information, performing the residual self-interference measurement on the measurement time-frequency resource to obtain a measurement result, transmitting feedback information determined according to the measurement result, receiving second configuration information determined according to the feedback information and determining a duplex mode of a terminal based on the second configuration information. According to the present disclosure, interference during a signal transmission procedure may be reduced.

Transmission method of physical signal, terminal and base station

A multiple access method, a multiple access transmitter, and a multiple access receiver includes performing, by a transmitter, channel coding on a bit sequence to determine a coded sequence. The method also includes interleaving and/or scrambling the coded sequence, and performing multidimensional constellation modulation on the interleaved and/or scrambled sequence; performing grid mapping on the modulated symbol sequence to determine a mapped sequence, and transmitting the mapped sequence. The method also includes receiving, by a receiver, mixed signals from multiple transmitters, the mixed signals are obtained by performing, by each of the multiple transmitters, interleaving and/or scrambling, multidimensional constellation modulation and grid mapping on data. The method further includes decoding, by the receiver, mixed information according to interleaver information and/or scrambler information, multidimensional constellation information and grid mapping pattern information corresponding to each transmitter to obtain data corresponding to each transmitter.

Apparatus and method for in multiple access in wireless communication

A drill bit for cutting formation comprises a bit body, a plurality of cutters, a plurality of blades with pockets to accommodate the cutters respectively. Each of the plurality of cutters has an ultra-hard layer, two side facets extending obliquely inward from the substrate to a top surface of the ultra-hard layer, a convex portion between the two side facets. The convex portion comprises a transition surface and the transitional surface is convex as it extends between adjacent the two side facets. The curvature of the transitional surface varies along the cutter axis with the curvature at the cutting edge larger than the curvature of the cutter circumferential surface.

Cutting elements with increased curvature cutting edges

In one aspect, field effect transistors are described herein employing channels formed of hybrid halide perovskite materials. For example, a field effect transistor comprises a source terminal, a drain terminal and a gate terminal wherein a dielectric layer is positioned between the gate terminal and the source and drain terminals. A channel layer is in electrical communication with the source terminal and the drain terminal, the channel layer comprising an organic-inorganic perovskite in contact with a polymeric surface of the dielectric layer.

Hybrid halide perovskite-based field effect transistors

An organic light-emitting device including a magnetoresistive element including a first magnetic layer, a second magnetic layer, and a separation layer disposed between the first magnetic layer and the second magnetic layer, an organic light-emitting element electrically connected to the magnetoresistive element, wherein the organic light-emitting element comprises a first electrode, a second electrode, and an organic light-emission layer disposed between the first electrode and the second electrode, a magnetic field applying unit configured to apply a magnetic field to at least the magnetoresistive element, and optionally, to the organic light-emitting element, a power source configured to supply a current between the magnetoresistive element and the organic light-emitting element, and a current source configured to apply a current between both terminals of the organic light-emitting element, wherein light-emission characteristics of the organic light-emitting device are changed depending on a direction and intensity of a current passing through the magnetoresistive element due to the power source and a direction and intensity of a current passing through the organic light-emitting element due to the power source and the current source.

Growing community of inventors

Beijing, China

Chuang Zhang