59results about How to "Reduce bit overhead" patented technology

The invention discloses expression methods and a device of a physical resource, wherein, one of the methods comprises the steps of utilizing continuous virtual resource blocks with limited length to express the physical resource position of semi-static dispatching data. By the technical proposal, the bit overhead of physical resource expression of semi-static dispatching data is reduced, and the saved bits are used for a virtual CRC, thus effectively improving the detection performance of physical downlink control channel.

The embodiment of the invention discloses a channel state information receiving method, a channel state information receiving device and a channel state information receiving system. The method comprises the following steps of: allocating a channel state information feedback particle size to user equipment, wherein the feedback particle size comprises a band part (BP) with a length greater than that of a sub-band (SB); and receiving channel state information fed back by the user equipment, wherein the channel state information is obtained according to the feedback particle size. By the technology provided by the embodiment of the invention, the channel state information bit overhead of the component aggregation user equipment in a long term evolution (LTE) system on an LTE-advanced (LTE-A) system can be reduced.

A downlink control signaling transmission method in wireless communication system is provided, which comprises following steps: base stations in public control signaling through transmitting downlink physical control channel distribution combination index indicates downlink physical control channel type and the number of downlink physical control channel in various types transmitted in current transmission time intervals; base stations transmitted various downlink physical control channels. The invention compared to other downlink control signaling transmission methods, reduces public control signaling bit cost, decreases time-frequency resources occupied by public control signaling, thus improving system spectrum utilization.

The invention discloses a demodulated reference signal DMRS port indication method, device and base station. A provided DMRS port indication table contains all cases for maximally supporting 8-layer transmission; in combination with existing standard single-codon transmission and double-codon transmission conditions, all the cases in the DMRS port indication table are indicated through 4 bits defined by DMRS port indication information; and thus, the bit overhead of the DMRS port indication information can be reduced.

The invention provides a data broadcasting method which is applied to a satellite communication system and can reduce the expenditure of physical resources when a satellite base station broadcasts data. The method comprises that: a satellite base station acquires a plurality of data needing to be broadcasted, wherein the multiple pieces of data are the same data in Doppler frequency offset compensation values, Doppler frequency offset change rates, transmission time delays, transmission time delay change rates, time advances TA, TA change rates and angles of the multiple beams respectively corresponding to the multiple beams generated by the satellite base station; the satellite base station determines reference data and offset of each datum in the plurality of data relative to the reference data according to the plurality of data; and the satellite base station sends first indication information and a plurality of pieces of second indication information to the terminal equipment, thefirst indication information is used for indicating the reference data, and each piece of second indication information is used for indicating offset of one piece of data in the plurality of pieces ofdata relative to the reference data.

The invention discloses an intra-frame prediction method, a video coding method, computer equipment and a storage device. The intra-frame prediction method comprises the steps of obtaining a search template of a current block; searching a reference pixel area by adopting a search template, wherein the reference pixel area is an encoded pixel area in the current frame; respectively obtaining the matching degrees of the search template and the blocks covered by the search template in the reference pixel area; determining a minimum value in the matching degree to obtain an image block corresponding to the minimum value as an optimal matching block of the current block; and if the rate distortion cost corresponding to the optimal matching block is minimum, enabling the block matching mode corresponding to the optimal matching block to be the optimal prediction mode. By adopting the search template to search the reference pixel region, the intra-frame prediction method provided by the invention can obtain the optimal matching block by combining the image content, the brightness and the chrominance signal of the current block, so that the bit overhead of subsequent residual coding is relatively low, the compression rate of intra-frame coding is improved, and the spatial redundancy can be further removed.

The invention relates to the field of mobile communication, in particular to technology for saving packet dedicated control channel (PDCCH) signaling cost during data retransmission and provides a data retransmission system and a data retransmission method. The method comprises the following steps that: a base station distributes data to be transmitted to a mobile terminal to each data stream for transmitting in a first distribution mode; and the base station transmits the data to each data stream for retransmitting in a second transmission mode and currently transmitted PDCCH signaling carries information for indicating the difference between the second distribution mode and the first distribution mode. Since the base station carries information on the difference between a retransmitted data distribution mode and a newly transmitted data distribution mode in the PDCCH signaling and does not need carry information which indicates a process group to which the data in each data stream belongs, the base station is allowed to flexibly dispatch the data among different data streams and the overhead bit of the PDCCH signaling is reduced.

The invention discloses an intelligent inter-viewpoint coding method. The method comprises the following steps: respectively obtaining a first prediction block obtained based on an adjacent block parallax vector mode and a second prediction block obtained based on a traditional parallax compensation prediction mode; constructing a residual learning convolutional neural network structure with a variable convolution kernel size; taking a result obtained by cascading the brightness component channels of the two prediction blocks as the input of a convolutional neural network, wherein the output of the network is an enhanced prediction block of the original image block; training four different network models according to the four different quantization parameters; extracting brightness components of the first prediction block and the second prediction block respectively, performing channel cascading, and calling a corresponding network model for a result after cascading according to the size of the current coding block and the quantization parameter value; and finally, calculating the rate distortion cost of the enhanced prediction block, comparing the rate distortion cost with the optimal mode cost of the current coding block; if the rate distortion cost is less than the optimal mode cost, selecting the method as the optimal coding mode, coding the corresponding mark, and transmitting the coded mark to a decoding end.

The invention relates to a an encoding and decoding method, device and appartus of an intra-frame prediction mode and a readable storage mediumcoding and decoding method and device for an intra-frameprediction mode, equipment and a readable storage medium. The coding method of the intra-frame prediction mode comprises the following steps: constructing a most probable prediction mode MPM candidatelist of a current data block according to an intra-frame prediction mode adopted by a plurality of adjacent data blocks of the current data block; wherein each intra-frame prediction mode in the MPMcandidate list is ranked according to the correlation between each adjacent data block and the current data block from large to small; determining an MPM set of the current data block according to theMPM candidate list of the current data block; obtaining a target intra-frame prediction mode of the current data block according to the MPM set of the current data block; and if the target intra-frame prediction mode exists in the MPM set of the current data block, encoding the target intra-frame prediction mode according to the sequence of the target intra-frame prediction mode in the MPM set, and determining a code word of the target intra-frame prediction mode. According to the method, the cCode word length of the target intra-frame prediction mode of the current data block is reduced, andthe bit cost is reduced.

The invention discloses a method for configuring a control resource set, a network device, and a terminal. The method includes: configuring the terminal with indication information of the time-frequency domain position information of the control resource set used to indicate data information; sending the indication information to the terminal . Wherein, the indication information includes: a first indication field used to indicate downlink numerical configuration information, and a second indication field used to indicate the configuration codebook of the control resource set. The present invention jointly indicates the time-frequency position of the control resource set of the data information through the first indication field and the second indication field, which can reduce the bit overhead of the system master information block MIB and improve resource utilization.

The invention discloses a reference signal indication method, network equipment and terminal equipment. The method comprises: configuring a target reference signal pattern used in the next transmission time interval for the terminal equipment; when the target reference signal pattern is a default reference signal pattern When the reference signal indication information is not sent to the terminal equipment; or, when the target reference signal pattern is the same as the reference signal pattern indicated by the reference signal indication information received last time, the reference signal indication information is not sent to the terminal equipment; the target reference signal The signal pattern is one selected from a plurality of preset reference signal patterns. When using the default reference signal pattern in the next transmission time interval or using the same reference signal pattern as in the previous transmission time interval, the present invention does not send reference signal indication information, and on the premise of ensuring that the reference signal pattern is accurately indicated, the system is reduced. The number of times information is sent, thereby saving the bit overhead of system information and improving the service transmission rate.

The present invention provides a method for decoding a video signal, comprising the steps of: acquiring a split flag from the video signal, wherein the split flag indicates whether a coding unit is split; acquiring split type information of the coding unit from the video signal if the coding unit is split according to the split flag, wherein the split type information includes embedded block type information and the embedded block type information indicates that a split block (EBP) is a block located at an arbitrary spatial location in the coding unit; and decoding the coding unit on the basis of the split type information of the coding unit.

The present application provides a non-contention random access resource configuration method and device, the method includes: based on a preset mapping relationship, sending target resource indication information to the terminal device; wherein the target resource indication information is used to determine the physical random access Incoming channel transmission opportunity RO resources, the target resource indication information includes: at least one of a physical random access control channel PRACH mask index and an RO resource index, and the preset mapping relationship is the value of the target resource indication information The corresponding relationship between scope and RO resources. Since the network device sends the target resource indication information with less content to the terminal device, the indication of the RO resource can be realized, so the bit overhead required for indicating the RO resource of the non-contention access process can be reduced.