International Business Machines Corporation

Chinese Academy of Sciences

Institue of Genetics and Developmental Biology, Chinese Adacemy of Sciences

Zhen Bo Zhu

Qing Fa Wang

Rong Yan

Yonghua Lin

Jianbin Tang

Jun Song Wang

Hai Zhan

Chao Zhu

Yong Hua Lin

Jian Ye Chen

Lin Chen

Kun Wang

Yi Ge

Ravinder Kumar Sabhikhi

Rui Hou

Jian Wen Chen

Fan Yang

Hang Liu

Xinhao Cheng

Yule Liu

Yingqiu Xie

Dejiang Feng

Xian Wei Yi

Provided is a hardware accelerator and method, central processing unit, and computing device. A hardware accelerating method includes, in response to a request for a new task issued by a hardware thread, accelerating processing of the new task and producing a processing result for the task. A predicting step predicts total waiting time of the new task for returning to a specified address associated with the hardware thread.

Hardware acceleration wait time awareness in central processing units with multi-thread architectures

Provided is a hardware accelerator, central processing unit, and computing device. A hardware accelerator includes a task accelerating unit configured to, in response to a request for a new task issued by a hardware thread, accelerate the processing of the new task and produce a processing result for the task; a task time prediction unit configured to predict the total waiting time of the new task for returning to a specified address associated with the hardware thread. One aspect of this disclosure makes the hardware thread aware of the time to be waited for before getting a processing result, facilitating its task planning accordingly.

An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.

Sharing frequencies in an OFDM-based wireless communication system

This invention relates to wireless signal process, and discloses a method for interference process of an interference signal in an OFDM based wireless communication system, comprising: receiving an interference signal; performing time domain and frequency domain analyses on the interference signal to obtain interference characteristics of the interference signal; determining an interference category of the interference signal according to the interference characteristics of the interference signal; and performing interference process on the interference signal in view of the interference category of the interference signal. The method for interference signal process of this invention is effective to both homogeneous network interference and heterogeneous network interference, so that frequency spectrum sharing of homogeneous networks and existing heterogeneous networks can be realized.

Interference process of interference signal

A method and apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.

A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information. Therefore, the interference of inter-wireless networks is reduced or even avoided through such overall management that the coordinating apparatus allocates corresponding spectrum resources to a plurality of wireless networks capable of sharing spectrum resources.

Reducing spectrum interference between wireless networks

The present invention relates to a software radio system and a decoding apparatus and method thereof. According to an embodiment of the present invention, there is provided a forward error correction decoding apparatus for a software radio system, including: a receiving module for receiving decoding tasks from a plurality of uplink channels; and a decoder matrix for executing the decoding tasks, wherein the decoder matrix is shared by the plurality of uplink channels. The decoding apparatus and method as well as the software radio system according to the embodiments of the present invention can be well adapted to the high computing capabilities, sufficient flexibility and scalability as required by base station systems for next-generation wireless communication systems.

Software radio system, decoding apparatus and method thereof

A base station apparatus, methods of receiving and sending data, and a computer readable article of manufacture. A computer implemented method includes the following for receiving and sending data: receiving the data by an RF header module; grouping data received; transferring the grouped data to a data processing apparatus; distributing the grouped data into an uplink sub-channel; merging the distributed data using at least one downlink sub-channel; transferring the merged data to a transceiving apparatus; degrouping the merged data; and sending the merged data by RF header module. A method of receiving data, a method of sending data, and computer readable non-transitory articles of manufacture are also provided.

Transceiving apparatus and data processing system for communication base stations

A wireless communication system base station, and a remote radio head (RRH) and a computer-implemented synchronization method for the wireless communication system base station. The RRH is communicably coupled to a baseband unit (BBU) of the wireless communication system base station through a network, and the BBU processes and transmits downlink data to the RRH. The RRH includes: a time-delay measurement unit for measuring a time-delay for the downlink data to arrive at the RRH from the BBU; and a time-delay notification unit for notifying from the RRH to the BBU of time-delay data on the time-delay measured by the time-delay measurement unit, wherein the time-delay data is used to advance the starting time for the BBU to process and transmit the downlink data by an amount of time obtained based on the time-delay data.

Wireless communication system

A wireless communication transceiver and a mode switch device thereof. The transceiver includes: a first band transmission path; a first band reception path; a second band transmission path; a second band reception path; a path switch and a control unit. In a dual band time division duplexing mode, the control unit controls the path switch so that the path switch connects a received radio frequency signal from an antenna to the first band reception path, and connects a transmitted radio frequency signal from the second band transmission path to the antenna in an odd cycle or an even cycle; and controls the path switch so that the path switch connects a received radio frequency signal from the antenna to the second band reception path, and connects a transmitted radio frequency signal from the first band transmission path to the antenna in another odd cycle or another even cycle.

Wireless communication transceiver and mode-switch device thereof

A base station apparatus adaptive for antenna arrays including at least one radio frequency (RF) header module, at least one data processing apparatus, and transceiving apparatus for transceiving data between the at least one radio frequency (RF) header module and the at least one data processing apparatus. The transceiving apparatus includes an uplink module to group data received by the RF header module according to grouping configuration information, and to transfer the grouped data to the data processing apparatus; and a downlink module to degroup the data from the data processing apparatus according to the grouping configuration information, and to transfer the degrouped data to the RF header module. Also provided are methods of receiving and sending data, and a computer readable article of manufacture tangibly embodying computer readable instructions for executing a computer implemented method of sending and receiving data for a base station.

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Beijing, China

Zhen Bo Zhu