Huawei Technologies Co., Limited

Sinotech Energy Co., Ltd.

Jinlin Zhang

Jiang Li

Jie Ma

Jing Yang

Yi Cheng Zhang

Hebing Wu

Qi Ding

Jun Chen

Wei He

Zheng Zhou

Jie Ping Wu

Huawei Zhang

Xijun Xue

Xiaofei Ma

Chengyi Wang

Yajun Jiang

Ying Wei

Xuan Xiao

Yuzhong Wu

Kang Wang

Rui Cai

Xiangao Feng

Fangfang Lv

Ting Yin

Shijie Yang

Junfeng Guo

Disclosed are a corrugated plate having a smooth top surface and drawbeads, and a storage container. The corrugated plate includes a corrugated plate body, a longitudinal corrugation, a transverse corrugation, and an intersection portion. The intersection portion includes a smooth top surface and four drawbeads extending from the top surface to the corrugated plate body. The top surface transitions to the drawbeads smoothly. An overall extension direction of each of the drawbeads intersects a transverse direction, a longitudinal direction, and a height direction perpendicular to the corrugated plate body.

Corrugated plate having smooth top surface and drawbeads and storage container

Embodiments of the present disclosure provide a base station and a beam forming method. The method includes: determining, according to uplink sounding signals separately received using m beams, an uplink receive power of each beam in the m beams, where m is a positive integer greater than 2; selecting n beams from the m beams according to the uplink receive power of each beam in the m beams, where 2&#x2264;n&#x3c;m, and n is a positive integer; determining a beamforming BF weighted value according to uplink sounding signals separately received using the n beams; and weighting the n beams using the beamforming (BF) weighted value, so as to form optimized beams used for data transmission. According to some embodiments of the present invention, a BF technology can be effectively implemented in a multiple-input multiple-output (MIMO) system.

Base station and beam forming

A communication method, a base station, and user equipment are provided. The method includes: forming m beams by using a manner of antenna weighting, where m is a positive integer greater than 1; determining an uplink receive power of each beam according to an uplink sounding signal of UE; selecting n beams from the m beams according to the uplink receive power of each beam, where n is a positive integer, and n&#x3c;m; and sending pilot signals to the UE by using the n beams. In the method, n beams are selected from the m beams according to the uplink receive power of each beam, to send pilot signals to the UE, instead of sending the pilot signals by using all the beams, thereby improving the flexibility of configuring the pilot signals for the UE, and reducing the complexity of measuring the pilot signals by the UE.

Communication method, base station, and user equipment

Embodiments provide a signal transmission apparatus and a downlink signal transmission method. A downlink common channel signal that needs to be sent by using a wide beam is divided into multiple groups of grouped signals; for each group of grouped signals, signal weighting is separately performed on different radio frequency paths in a multi-antenna system; weighted grouped signals are combined to obtain a weighted downlink common channel signal; and the weighted downlink common channel signal is transmitted.

Signal transmission apparatus and downlink signal transmission method

Embodiments of the present invent provide a method for selecting a pre-coding matrix indication, an apparatus and a system. In embodiments the method includes sending, by a base station, indication information to a terminal, wherein the indication information is used to instruct the terminal to send uplink data without weighting the uplink data or after weighting the uplink data by using an identity matrix and receiving, by the base station, the uplink data sent by the terminal. The method further includes selecting, by the base station, a first pre-coding matrix indication (PMI) from a pre-coding matrix indication set of the base station according to the uplink data and sending the first PMI to the terminal.

Method for selecting precoding matrix indication, apparatus and system

Methods and apparatus are provided for controlling activation or deactivation of a carrier frequency in a multi-carrier/cell system. Activation or deactivation of a subsidiary carrier frequency is determined according to a parameter associated with the subsidiary carrier frequency. When the subsidiary carrier frequency is to be activated or deactivated, a message, such as an HS-SCCH order, is transmitted to a terminal to instruct the terminal to activate or deactivate the subsidiary carrier frequency. In this manner, a certain carrier frequency can be flexibly activated or deactivated in accordance with real-time assessment of multi-carrier/cell conditions.

Method and apparatus for controlling carrier frequency in multi-carrier/cell system

Embodiments of the present invention provide a signal transmission method, apparatus, and base station. The method includes: sending downlink signals through N sectors, where the N sectors are created by using M sectors used to receive uplink signals, and N&#x3e;M. In the embodiments of the present invention, the base station creates N sectors by using M sectors used to receive uplink signals and sends downlink signals through the N sectors, so that the multi-sector technology is mainly used in the downlink and the multi-antenna technology is mainly used in the uplink. This may resolve an existing conflict between the uplink and the downlink when system capacity is being improved, thereby improving system capacity of a wireless communication network.

Signal transmission method, apparatus, and base station

A method and an apparatus for balancing power between antennas, and a base station are provided. The method includes multiplying n virtual antenna signals by an orthogonal matrix to obtain n intermediate regulative signals; and using a corresponding rotary phase to rotate phases of m of the n intermediate regulative signals, so that a phase difference exists between at least two of n physical antenna signals output by antennas.

Method and apparatus for balancing power between antennas, and base station

The present invention relates to the field of communications technologies. A resource management method, apparatus, and system in a multi-carrier system are disclosed. The multi-carrier system includes at least one multi-carrier cell and the multi-carrier cell includes at least two single carrier establishing cooperation. The method includes the following steps: A base station measures the cooperative resource usage information of each cooperation established single carrier cell; the base station reports the cooperative resource usage information to a radio network controller for the radio network controller to perform resource management. The information measured and reported by the base station in the embodiment of the present invention can satisfy the needs of the multi-carrier performing resource management and make sure that the radio network controller can perform reasonable admission control over multi-carrier UEs.

Resource management method, apparatus and system in a multi-carrier system

A wireless data transmission method is disclosed, in which a transmitter buffers current RLC layer data. The method includes the following steps: the transmitter transmits the current RLC layer data to a receiver; receives a data-receiving packet indicating that the data is incorrectly received, the physical layer of the receiver generated and fed back by the physical layer of the receiver if a physical layer of the receiver determines that the data is incorrectly received; and transmits the buffered current RLC layer data to the receiver. A transmitting system and a receiving system are further disclosed. The method of the present disclosure may enhance the data transmission speed over the RLC layer.

Wireless data transmission method, transmitting system, and receiving system

The method obtains an interference detection result by detecting sampled digital signals in real time in a transform domain, then maps the interference detection result into an interference suppression pulse function on the basis of a unit noise pulse function, and carries out interference suppression filtering in the transform domain according to the interference suppression pulse function. The present invention is capable of detecting narrowband interference such as monotone, frequency modulation, and phase modulation interferences in a receive channel adaptively in real-time, and suppressing the interference adaptively according to the quantity, energy and bandwidth of the interference, so as to reduce the influence of the interference. Therefore, the present invention may enhance robustness of the communication system against interference. Moreover, the present invention does not need multiple notch devices, costs low and may be implemented simply and reliably.

Method and device for suppressing narrowband interference

An apparatus and method for down-link multiple-antenna transmission in a wireless communication system is provided wherein a base station section comprises: a down-link specific physical channel unit, a second common pilot channel unit, a beam weighting unit of common pilot channels, a multiplexing and summing unit, a down-link specific physical channel weighting unit, a specific physical channel and second common pilot channel multiplexing unit, an antenna array unit, a multiple-beam weight vector set unit, up-link specific physical channels, and a feedback bit information unit; and a service cell section or mobile station section comprises: an antenna unit, a channel evaluating unit, a beam selection unit, and a beam quantizing unit. The space characteristics of the physical channels are utilized reasonably. Accordingly, a beam gain is obtained, interference is suppressed effectively, and the apparatus is easy to operate.

Method and apparatus for down-link feedback multiple antenna transmission in wireless communication system

A spatial domain matched filtering method and an array receiver in a radio communication system are provided. The spatial domain matched filtering method includes the steps of receiving array digital signals; weighting the array digital signals to obtain digital beam output signals; evaluating power value of digital beam output signals and normalizing the digital beam output signals; evaluating a correlation coefficient reflecting the energy of an expected signal in each beam; wherein evaluating equations are:Coeff()=Coeff()+&#x3b1;Coeff(&#x2212;1);and outputting the digital beam output signal corresponding to the maximum correlation coefficient.

Growing community of inventors

Shanghai, China

Jinlin Zhang