Zte Corporation

Sanechips Technology Co., Ltd.

Ning Qiu

Li Chen

Qiang Li

Zhongwei Liu

Nanshan Cao

Yannan Xing

Lihong Liang

Wenqi Zeng

Tao Zhang

Feng Lin

Liwen Li

Yueyi You

Yu Wei Chen

Jian Mg Cheng

Xi Wang

Yangzhong Yao

Jintao Chu

Tiankun Yu

Fanping Du

Xuehong Tian

Haiyong Xiao

Jiwen Wang

Qinxin Li

Qianchao Gan

Haifeng Ni

Min Bi

Xiaolong Ran

Disclosed are a multipath selection method and device, and a storage medium. The method includes that: a correlation sequence between a received signal and a local reference signal is acquired by means of a correlation calculation method; a power spectrum of the correlation sequence and an average noise power of the received signal are acquired; according to the average noise power of the received signal, the power spectrum of the correlation sequence is divided into at least one first multipath component area and a second multipath component area according to a pre-set dividing rule; the at least one first multipath component area is searched according to a pre-set first noise threshold, so as to acquire a valid multipath component signal in the at least one first multipath component area; and the second multipath component area is searched according to a pre-set second noise threshold, so as to acquire a valid multipath component signal in the second multipath component area.

Multipath selection method and device, and storage medium

The present disclosure discloses a method and device for determining a position, and a computer storage medium. The method includes that a first power value for a SYNC-NL segment within a DwPTS, a second power value for a first GP segment which precedes the SYNC-NL segment, a third power value for a second GP segment which follows the SYNC-NL segment, and a fourth power value for a time slotare acquired; an eigenvalue of the DwPTS is calculated according to the first power value, the second power value, the third power value and the fourth power value; and the position of the DwPTS is determined according to the eigenvalue.

Position determination method and device, and computer storage medium

An MAP algorithm-based Turbo decoding method and apparatus. The method includes: iteratively estimating an information symbol by using an MAP algorithm, acquiring an &#x3b1; and &#x3b2; window boundary values of each sliding window by means of window boundary value inheritance, acquiring an &#x3b1; block boundary value and &#x3b2; block boundary value of each sub-block by means of block boundary value inheritance, and recursively calculating posterior probability Log Likelihood Ratio (LLR) values of a whole window and a whole block according to the &#x3b1; boundary values and the &#x3b2; boundary values (); and performing decoding decision according to the LLR values ().

Map algorithm-based turbo decoding method and apparatus, and computer storage medium

Disclosed are a signal gain control method and device for a TD-HSPA+ terminal device. The method comprises the following steps: when a terminal device is in a continuous packet transmission mode, it is determined whether the terminal device receives a signal from a high speed packet channel for the first time, and if not, it is determined whether a reception interval between two successively received signals is smaller than a preset interval; if the reception interval is not smaller than the preset interval, a gain AGCat a main frequency point of a primary common control physical channel (PCCPCH) of a cell is obtained, and the AGCis used to control a gain of a signal currently received by the terminal device.

Gain control method and device for TD-HSPA+terminal device

The invention provides a method and an apparatus for estimating frequency deviation, the method comprising: after receiving a sub-frame, transforming a downlink synchronized code of the sub-frame to a frequency domain, and performing a correlation operation between the transformed downlink synchronized code and a local frequency domain synchronized code to obtain a conjugate downlink synchronized code sequence; judging a location of a maximum value in the conjugate downlink synchronized code sequence, and calculating a frequency deviation value according to the location of the maximum value. The estimating method provided in the invention can realize a stable work with no need of a precise sampling value location, an accurate timing synchronization, or even obtaining the information for the multi-path distribution and locations.

Method and apparatus for estimating frequency deviation

The present invention discloses a multi-frame synchronization method, the method comprises: for each received sub-frame, a receiver determining a probability that the received sub-frame is each of sub-frames in a multi-frame, a sub-frame with maximum probability being a state of the currently received sub-frame after N sub-frames are received. The present invention further discloses a receiving apparatus for multi-frame synchronization comprising a calculation module; wherein the calculation module is configured to calculate a probability that a received sub-frame is each of sub-frames in a multi-frame, and determine a state of the currently received sub-frame based on a sub-frame with maximum probability after N sub-frames are received. The present invention effectively achieves a position for multi-frame synchronization and low calculation complexity.

Receiving apparatus and method for multi-frame synchronization

A method for configuring a service and a method and apparatus for rate matching in a TD-SCDMA system, this method for configuring the service includes: taking that a check bit puncturing ratio should be more than 7i+a or less than 7i&#x2212;a as a newly added constraint condition, and the check bit puncturing ratios of each configured service being outside a range of [7i+a, 7i&#x2212;a], the method for rate matching includes: when puncturing each path of check bits of the current data block, if a difference between a position Pof kreserved check bit calculated according to a method defined by the service and a previously determined position NPof k&#x2212;1reserved check bit is a positive integral multiple of 7, determining a position NPof kreserved check bit as Pplus 1 or Pminus 1, and Pplus 1 and Pminus 1 requiring carrying out alternately.

Method and apparatus for service configuration and rate matching of time division-synchronous code division multiple access system

A synchronization method is disclosed, including: obtaining a synchronization symbol position {circumflex over (d)}of one time slot of an initial update period; taking Nframes as an update period to adjust the synchronization symbol position, and the step of adjusting the synchronization symbol position including: obtaining a synchronization symbol position {circumflex over ({circumflex over (d)}=d+N{circumflex over (T)}of a corresponding time slot of a (k+1)update period according to a synchronization symbol position {circumflex over (d)}of a corresponding time slot of a kupdate period and an inter-frame sampling derivation estimation value {circumflex over (T)}of said kupdate period; obtaining synchronization symbol positions of other time slots in said kupdate period according to the synchronization symbol position {circumflex over (d)}of the corresponding time slot of the kupdate period and the inter-frame sampling derivation estimation value {circumflex over (T)}of said kupdate period. A synchronization apparatus is also disclosed. The method and apparatus reduces synchronization calculation amount.

Synchronization method and device

The embodiments of the invention disclose a method and a device for decoding an RS code, the method comprising: receiving bit reliability information of the RS code output by a channel, performing a hard decision on the bit reliability information to obtain a hard-decision result value sequence; determining a type of an error of the hard-decision result value sequence according to an initial check array corresponding to an encoding mode of the RS code; according to preset corresponding relationships between types of errors of the hard-decision result value sequence and error-correcting modes capable of correcting the errors, determining an error-correcting mode corresponding to the type of the error of the hard-decision result value sequence, and performing a bit error correction on the hard-decision result value sequence according to the determined error-correcting mode; outputting the hard-decision result value sequence after the bit error correction as a decoding result.

Method and device for decoding Reed-Solomon (RS) code

The present invention discloses an OFDM signal demodulation method and device thereof. The method comprises: adding a pre-obtained timing offset estimation value of an OFDM signal demodulation device to the initial position of an OFDM symbol of a received signal to obtain a window deviation value of the OFDM symbol; adding a channel time delay extension to the window deviation value to obtain a combined prefix initial position; calculating the combined OFDM signal value starting from the prefix initial position; processing the Fast Fourier Transform (FFT) for the combined OFDM signal value to obtain a frequency domain data subcarrier signal; calculating the frequency domain original channel estimation value processing the channel estimation based on the original channel estimation value phase modification of the OFDM symbol according to the channel estimation compensation indication value; and processing equalization and detection for the frequency domain data subcarrier signal according to the channel estimation result. The present invention uses the cycle prefix of the received signals to promote the demodulation performance of the OFDM signal demodulation device.

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Shenzhen, China

Ning Qiu