Huawei Technologies Co., Limited

Intel Corporation

Chinese Academy of Sciences

Hon Hai Precision Industry Co., Ltd.

Future Wei Technologies, Inc.

Hong Fu Jin Precision Ind. (shenzhen) Co., Ltd.

Toray Industries, Inc.

Hauwei Technologies Co., Ltd.

Xin Zeng

Chen Chen Zheng

Xiaojian Liu

Junyuan Wang

Xiaoqiu Yang

Ned M Smith

Kapil Sood

Weigang Li

Xiaobin Shi

Cunming Liang

Ziying Xu

Zijuan Fan

Michael E Kounavis

Baiju V Patel

Yuejun Wei

Liang Ma

Carmela Cozzo

Ahmad Shawky Muhanna

Yao Huo

Chen Wang

Zongjie Wang

Ashok Raj

Hao Tang

Ziye Yang

Yongzhao Cao

Jie Xiong

Kaijie Guo

Yong Gen He

Namakkal N Venkatesan

Zhenfei Tang

Yuanzhou Hu

Ping Yu

Ting Wang

Changzheng Wei

Fan Zhang

Masatoshi Aoyama

Jing Lu

Yi Wang

Weiren Lin

Songwu Shen

Roger Keith Wiles

Junhua Hou

Tang He

Maksim Lukoshkov

Baoqian Li

Laurent Coquerel

Brian Will

Pujing Zuo

Zhaohua Sun

Osamu Tadai

Chuanhai Yu

Zinong Ye

Xiangqun Fan

Xiaji Dai

Bangqing Li

Qianjun Xie

Yuan Wang

Sanjay K Kumar

Junyan Wang

An embodiment of an integrated circuit may comprise memory to store respective resource control descriptors in correspondence with respective identifiers, and an input/output (IO) memory management unit (IOMMU) communicatively coupled to the memory, the IOMMU including circuitry to determine resource control information for an IO transaction based on a resource control descriptor stored in the memory that corresponds to an identifier associated with the IO transaction, and control utilization of one or more resources of the IOMMU based on the determined resource control information. Other embodiments are disclosed and claimed.

PASID granularity resource control for IOMMU

A low density parity check (LDPC) channel encoding method for use in a wireless communications system includes a communication device encoding an input bit sequence by using a LDPC matrix to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The encoding method can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Method and apparatus for low density parity check channel coding in wireless communication system

Techniques and mechanisms for determining an operation to be performed with a direct memory access (DMA) request. An inspection unit () is coupled between an input-output memory management unit (IOMMU) () and an endpoint device (). The inspection unit () stores a registry () comprising entries () which each correspond to a respective address, and a respective one or more resources of the endpoint device (). A given entry () of the registry () is created based on a message from the IOM MU () which indicates the successful completion of an address translation to facilitate a DMA request. The endpoint device () performs a search, based on a DMA request, to determine if any registry () entry () indicates a combination of an address and an endpoint resource, where said combination matches a corresponding combination indicated by the DMA request. Communication of the DMA request to the IOMMU () is contingent on a result of the search.

Device, system, and method for inspecting direct memory access requests

This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z≥K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.

Apparatus and method for channel coding in communication system

Embodiments of this disclosure provide techniques for communicating in a wireless communication system. In particular, a user equipment (UE) may receiving a security command message from a base station comprising an indication of an integrity protection algorithm and an indication of an encryption algorithm. The first security command message may trigger a radio resource control (RRC) traffic signaling protection procedure between the UE and the base station. The UE transmits a security command complete message to the base station. The security command complete message may trigger a packet data unit (PDU) session establishment procedure to establish a PDU session between the UE and the base station.

Method and device for negotiating security and integrity algorithms

This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z&#x2265;K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.

This application discloses a method and an apparatus for processing information, a communications device, and a communications system. The communications device is configured to obtain a starting position of an output bit sequence in a coded block in a circular buffer, and determine the output bit sequence in the coded block based on a length of the output bit sequence and the starting position. A value of the starting position is one of {p, p, p, . . . , p}, where 0&#x2264;p&#x3c;N, pis an integer, k is an integer, 0&#x2264;k&#x3c;k, Nis a size of the coded block, and kis an integer greater than or equal to 4.

Method and apparatus for processing information, communications device, and communications system

Embodiments include apparatuses, methods, and systems including one or more servers and one or more storage devices, coupled with each other, to provide virtual storage service to store a file and meta data of the file for a client computing device. The file and the meta data of the file may be encrypted by the client computing device before providing to the virtual storage service. The file may be encrypted with a secret key of the client computing device, and the meta data of the file may be encrypted with a shared session key between the client computing device and the virtual storage service. The encrypted file may be stored in the one or more storage devices, and the encrypted meta data of the file may be stored in one or more secured areas of the one or more servers. Other embodiments may also be described and claimed.

Virtual storage services for client computing devices

This application provides a data transmission method, a base station, and a terminal device. The method includes: determining, by a base station, a target base graph in N Raptor-like LDPC base graphs; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the terminal device to use the target base graph to perform LDPC encoding and decoding. Based on the foregoing technical solution, the base station may determine a target base graph in a plurality of Raptor-like LDPC base graphs that may be used to perform LDPC encoding and decoding, and indicate the target base graph to the terminal device. Further, for one code rate or one code length, the base station may select different base graphs as required.

Data transmission method, base station, and terminal device

This application discloses an information processing method and apparatus, a communications device, and a communications system. The method includes: encoding an input sequence by using a low-density parity-check (LDPC) matrix, to obtain a bit sequence D, where a base matrix of the LDPC matrix is represented as a matrix of m rows and n columns, each column corresponds to a group of Z consecutive bits in the bit sequence D, and n and Z are both integers greater than 0; and obtaining an output bit sequence based on a bit sequence V, where the bit sequence V is obtained by permuting two groups of bits corresponding to at least two parity check columns in the bit sequence D.

Information processing method and communications apparatus

This application discloses an information processing method. A communication device obtains an input sequence. The input sequence has a quantity B of bits. The communication devices transforms the input sequence into one or more code blocks. The communication device encodes each of the code blocks, to obtain one or more encoded code blocks. Each of the code blocks has a code block length less than or equal to a maximum code block length. Each of the code blocks includes a segment of the input sequence, one or more cyclic redundancy check (CRC) bits corresponding to the segment of the input sequence, and one or more filler bits. The encoded code blocks can meet various channel coding requirements.

Information processing method, device, and communications system

This application provides a data processing method and a communications device. The data processing method includes: determining, by a first communications device, N, based on a size of the circular buffer of the communications device and an information processing capability of a second communications device; and obtaining, by the first communications device, a second encoded bit segment from a first encoded bit segment having a length of N. According to the data processing method and the communications device provided in this application, decoding complexity of the communications device can be reduced and communication reliability can be improved.

Data processing method and communications device

Growing community of inventors

Shenzhen, China

Xin Zeng