China Academy of Telecommunications Technology

Baidu USA LLC

Datang Mobile Communications Equipment Co., Ltd.

Baidu Online Network Technology (beijing) Co., Ltd.

China Academy of Telecommunications Equipment Co., Ltd.

Baidu Online Network Technology Co., Ltd.

Yu Ding

Xueming Pan

Guojun Xiao

Shiqiang Suo

Shaohui Sun

Fei Qin

Shiyan Ren

Zukang Shen

Yanan Lin

Tao Wei

Yulong Zhang

Lei Mao

Deshan Miao

Xuelong Wang

Yingmin Wang

Xiaodong Yang

Yueqiang Cheng

Qiubin Gao

Haijing Hu

Ying Wang

Xuejuan Gao

Jing Min Xu

Jun Chen

Yi Zhao

Wenhong Chen

Libo Wang

Tamrakar Rakesh

Jiayi Fang

Yuemin Cai

Hai Bi

Guosheng Zhao

Hongyan Xu

Yuexia Song

Xunwei Zhao

Jiajun Yang

Qian Feng

Wenqing Wang

Junyun Yang

Jing Xu

Pei Wang

Zukang Sehn

According to one embodiment, in response to a request received at a host agent of a server from a user device of a user over a network to process user data, a data processing system launches a restricted operating environment within the server. The system transmits a token representing the request to a guest agent executed within the restricted operating environment, where an executor associated with the token is launched by the guest agent within the restricted operating environment, where the executor, when executed, is configured to process the user data to generate a processing result without accessing an external component external to the restricted operating environment. The system returns the processing result back to the user device.

Secure multiparty computing framework using a restricted operating environment with a guest agent

According to one embodiment, in response to a request received at a host agent of a server from a user device of a user over a network to process user data, a system transmits a token representing the request to an executor pool having a pool of a number of executors. The system receives by the host agent executable image(s) of an executor from the executor pool, where the executor pool allocated the executor from the pool of executors in response to successfully verifying the token. The system launches a restricted operating environment within the server, including providing the executable image(s) of the executor and the user data to the restricted operating environment. The system executes the executable image(s) of the executor within the restricted operating environment, where the executor, when executed, is to process the user data without accessing an external component external to the restricted operating environment.

Token based secure multiparty computing framework using a restricted operating environment

A method, apparatus, and system for using a verification substitute header file in a verification of an application that uses Protocol Buffers (Protobuf) for data communication is disclosed. The operations comprise: obtaining one or more Protobuf message types from a Protobuf definition file; generating the verification substitute header file based on the Protobuf message types; adding one or more verification stubs to the verification substitute header file; including the verification substitute header file in source code of the application; and performing the verification of the application including the verification substitute header file.

Generic verification approach for Protobuf based projects

Disclosed are a response information transmission method, system and device. A base station can configure at least two PUCCH transmission carriers for user equipment, accordingly, the user equipment can select at least one PUCCH transmission carrier from the at least two PUCCH transmission carriers which are configured by the base station to transmit response information fed back on a corresponding subframe, and accordingly, the base station can receive the response information which is fed back by the user equipment on at least one PUCCH transmission carrier. The technical solution increases the number of PUCCH transmission carriers, so that compared with the manner of only configuring one PUCCH transmission carrier in the prior art, the reconfiguration operations caused by the movement of user equipment can be reduced, thereby reducing the condition that UE cannot normally communicate in the process of reconfiguration, and reducing the signaling overhead caused by the reconfiguration operation.

Response information transmission method, system and device

The present disclosure discloses a method, an apparatus and a system for device identification. A specific implementation of the method comprises: receiving a device identification request sent from a terminal device, the device identification request comprising a current user identifier of a current user of the terminal device; acquiring a public key in a preset asymmetric key pair to serve as a first public key; sending the first public key and a randomly-generated first random number to the terminal device; receiving device characteristic information sent from the terminal device, the device characteristic information being generated by the terminal device based on the current user identifier, the first public key, the first random number and a device identifier of the terminal device; and identifying the terminal device based on the current user identifier, the first random number and the device characteristic information.

Method, apparatus and system for device identification

Provided are a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method comprises: a network side device confirming the value of an interference parameter of a target cell (); on the basis of the value of the interference parameter of the target cell, the network side device confirming whether or not the target cell is capable of conducting autonomously the uplink-downlink configuration (). Employment of the present invention allows for the normal operation of a dynamic uplink-downlink configuration, reduced interference between adjacent cells in a dynamic uplink-downlink configuration environment, and improved system efficiency.

Method, system, and device for confirming uplink-downlink configuration

The present invention discloses a method, system and device for determining a bandwidth of an uplink sounding reference signal SRS. The method for determining the bandwidth of the uplink SRS comprises the following steps: determining whether SRS is transmitted with the uplink pilot time slot if the SRS is transmitted with the largest bandwidth level; transmitting SRS with the non-extensive SRS bandwidth if SRS is determined to be transmitted with the uplink pilot time slot and the UE reaches the power limit. In the present invention, the signal-to-noise ratio detected on the bandwidth with which SRS transmitted can be maintained, and the accurate detection of the channel information is thereby realized.

Method, system and device for determining bandwidth of uplink sounding reference signal

Embodiments of the present invention relate to the technical field of wireless communication, and relate particularly to a method, a system, and a device for confirming an uplink-downlink configuration, for use in confirming via interference detection whether or not a cell is capable of conducting independently the uplink-downlink configuration. The method of the embodiments of the present invention comprises: a network side device confirming the receipt of a first RSRP value of a reference signal from a second cell by a first cell, the second cell being an adjacent cell of the first cell (); on the basis of the first RSRP value, the network side device confirming whether or not the first cell is capable of conducting autonomously the uplink-downlink configuration (). Measuring the RSRP value to determine whether or not the cell is capable of conducting independently the uplink-downlink configuration allows for the normal operation of a dynamic uplink-downlink configuration, reduced interference between adjacent cells in a dynamic uplink-downlink configuration environment, and improved system efficiency.

Various embodiments provide a method and apparatus for storing a code block. When the size of the buffer in the terminal device is smaller than the size of the buffer at the rate matching at the base station, the code block is stored in the buffer, which is used when the terminal device fails to decode the code block.

Method and apparatus for storing code block

Disclosed are a method and a device for transmitting an aperiodic SRS in a TDD system. In the technical solution of the present invention, a symbol is defined for the transmission of the aperiodic SRS in a special subframe in the TDD system. This avoids a scenario in which the transmission position of the aperiodic SRS is undefined when a plurality of symbols that can be used to transmit the aperiodic SRS are available in an uplink pilot time slot (UpPTS). The problem of transmitting aperiodic SRS in a TDD system special subframe is thus solved. The modification to corresponding instruction messages is not extensive, and there is no overuse of system resources.

Method and device for transmitting aperiodic SRS in TDD system

A method, apparatus and system for downlink pilot transmission solve the problem of power differences among OFDM symbols caused by Walsh Codes. The transmission method is that dedicated pilots are transmitted in the manner of code division multiplexing (CDM) or hybrid of CDM and frequency division multiplexing (FDM), wherein the dedicated pilots are configured with orthogonal sequence sets according to a preset frequency-domain granularity and rules on the resources for transmitting the dedicated pilots, and the same orthogonal sequence set is employed for the dedicated pilots in each frequency-domain granularity.

Method, system and device for transmitting downlink pilots

The present invention discloses a MBMS dedicated carrier configuration method, including: at least one of MBMS dedicated carriers in a cell is chose and assigned MBMS control information of all MBMS dedicated carriers and MBMS system information; and frequency information and scrambling code group ID information of at least one MBMS dedicated carriers assigned bundling information is assigned to conventional service carriers in the cell. The present invention also discloses a device for realizing said method and a MBMS transmission method based on dedicated carriers assigned the bundling information. The present invention realizes MBMS bundling on the dedicated carriers, and UE can receive services by directly sensing the carriers bearing control signaling, and thus it can reduce meaningless switching sense by the UE and save power.

Dedicated carrier configuration method and device and multimedia broadcast multicast service transmission method

The present invention discloses a transmission method with multi-carrier aggregation, which includes: performing uplink and downlink configurations for each of the component carriers aggregated in a cell and ensuring coexistence of at least one identical uplink sub-frame and at least one identical downlink sub-frame between at least two of the component carriers and compliance of the configuration of at least one of the component carriers with an uplink and downlink configuration of R8; and transmitting the uplink and downlink configuration of any one of the component carriers and those of the other component carriers aggregated with the any one component carrier to an LTE-A UE accessing the corresponding component carrier. The invention further provides a transmission device with multi-carrier aggregation. With the invention, uplink and downlink configurations in an LTE-A system can be performed to accommodate a demand of a TDD system.

Method and device for enabling multi-carriers aggregation transmission

An adaptive modulation and coding method includes selecting punctured Physical Resource Blocks (PRBs) to transmit downlink data for User Equipment (UE); determining Transport Block Size (TBS) and number of punctured PRB pairs for transmission to the UE based on the carried service; scheduling downlink data for the UE based on determined TBS, and transmitting the number of used punctured PRB pairs and a Modulation and Coding Scheme (MCS) sequence number to the UE; and the UE converting number of the punctured PRB pairs to number of normal PRB pairs, determining modulation scheme and TBS sequence number based on the MCS sequence number, and determining TBS of the downlink data based on number of normal PRB pairs and TBS sequence number.

Method, system and device for adaptive modulation and coding

Growing community of inventors

Beijing, China

Yu Ding