136 results about "Covering code" patented technology

The invention discloses an invalid code automatic elimination method and device, a medium and a product, and the method comprises the steps: carrying out compiling analysis processing on each program file in a to-be-processed target program item, generating a syntax tree model, and testing the compiled program file to obtain a program test result; unused variables in all the variables are identified through a syntax tree model, and uncovered code lines are positioned in combination with a test result; analyzing logic judgment conditions of uncovered code lines based on the syntax tree structure, and judging the code lines which cannot be triggered as unreachable codes; unused variables and unreachable codes in the program files are removed, new program items are obtained, and when the new program items are correctly compiled and executed, the new program items are used for replacing the target program items. Program redundancy is reduced, and execution efficiency is improved.

A method (1500) is performed by a User Equipment, UE, (1912, 2000) for performing an uplink transmission that is spread using an Orthogonal Cover Code, OCC, in a Non-Terrestrial Network, NTN. The method includes transmitting (1502) an uplink transmission using Narrowband Physical Uplink Shared Channel, NPUSCH, Format1 with 3.75 kHz subcarrier spacing, SCS. The uplink transmission includes at least one data symbol, at least one Demodulation Reference Signal, DMRS, symbol, and at least one guard period. The location of the guard period within each of the slots comprising the uplink transmission is preserved after OCC spreading is applied to the uplink transmission.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling that indicates an orthogonal cover coding (OCC) codeword assigned to the UE and an OCC factor. The UE may receive an uplink grant that allocates, to the UE, uplink resources over a series of uplink time units for a quantity of repetitions of a transmission block. The UE may subsequently use the assigned OCC codeword to transmit each repetition of the quantity of repetitions of the transmission block over a quantity of uplink time units of the series of uplink time units, where a function of the quantity of uplink time units and the quantity of repetitions satisfies a threshold, and where the quantity of uplink time units is greater than or equal to the OCC factor.

Sounding Reference Signal (SRS) capacity is increased by introducing Time Domain Orthogonal Cover Codes (TD-OCC) over multiple SRS repetitions. A UE may indicate to the network a capability to support TD-OCC for SRS. In response, the network provides configurations controlling the content and format of the SRS. An SRS resource configuration may include at least an SRS Repetition Factor≥2. A TD-OCC configuration may include at least one of a TD-OCC length and a TD-OCC code. The UE C indication may indicate a maximum TD-OCC length that is supported for an SRS resource; all TD-OCC lengths that are supported; that supported TD-OCC lengths are 2n for positive integers n; that different TD-OCC codes are supported for different SRS ports of an SRS resource; or that the TD-OCC length maybe different than the SRS Repetition Factor. Techniques are disclosed herein for implementing all of these variations.

Disclosed are methods, systems, and computer-readable medium to perform operations including: generating a mapping pattern that comprises a length-4 frequency division orthogonal cover code (FD-OCC4), the mapping pattern for mapping demodulation reference signals (DMRS) in frequency to a plurality of resource elements in at least one orthogonal frequency-division multiplexing (OFDM) symbol, wherein the DMRS are associated with a plurality of DMRS ports; mapping, using the FD-OCC4, the DMRS to the plurality of resource elements in the at least one OFDM symbol; and transmitting a transmission comprising the at least one OFDM symbol.

The invention discloses a method and a system for evaluating a test coverage rate based on a Java call link, and relates to the field of software testing. The method comprises the following steps: identifying a difference function according to a first comparison result, and constructing a call chain tree structure by taking the difference function as a root node based on a code call relation graph; analyzing the difference function to obtain a direct code change line of the difference function, based on a call chain tree structure, identifying a related code line on a call chain where each call point is located as a call point code line, and summarizing the direct code change line and the call point code line; and analyzing the code coverage rate data to obtain an actually covered code line, comparing the to-be-tested code line with the actually covered code line, determining coverage rate index data based on a call chain according to a second comparison result, and determining a test coverage rate evaluation result according to the coverage rate index data. The test coverage rate can be evaluated more comprehensively and accurately.

Provided in the present application are a method and apparatus for uplink capacity enhancement in an NR NTN system. The method comprises: receiving at least one of the following pieces of information: first information, which is used for determining an orthogonal cover code (OCC) scheme for a physical uplink shared channel (PUSCH); second information, which is used for determining an OCC sequence table used for the PUSCH; and third information, which is used for determining an OCC sequence from the OCC sequence table; and sending the PUSCH.

Embodiments herein provide sounding reference signals (SRS) enhancements to support flexible mapping of multiple SRS ports to multiple symbols. In some embodiments, a network node may send, to a user equipment (UE), a sounding reference signal (SRS) configuration that maps multiple SRS ports across multiple symbols using a time domain orthogonal cover code (TD-OCC) codebook. The UE may transmit a SRS from each SRS port using the multiple symbols. The network node may provide feedback based on the SRS from each SRS port.

Methods, systems, and devices for wireless communications are described. A UE may select coded information bits based on an orthogonal cover code (OCC) multiplexing order and / or a type of OCC multiplexing. For example, the UE may receive a control message that indicates the OCC multiplexing order and / or the type of OCC multiplexing. The UE may select encoded bits from a buffer for an uplink transmission, where a quantity of encoded bits selected for each slot of the uplink transmission may be scaled based on a total quantity of bits per slot and the OCC multiplexing order. Additionally, or alternatively, the UE may scale the bit selection based on a unit (e.g., a slot, cluster, symbol, resource element) of the transmission, where, for each unit of a set of units, the UE may select bits from the buffer a quantity of times that corresponds to the OCC multiplexing order.

This terminal includes: a control unit for determining at least one of an intra-symbol orthogonal cover code (OCC) spreading in the frequency domain and an inter-symbol OCC spreading in the time domain, applied to a physical uplink shared channel (PUSCH) modulated by discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) or OFDM; and a transmission unit for transmitting the PUSCH to which the OCC is applied to a base station. The control unit multiplexes uplink control information (UCI) before executing spreading for OCC application.

Disclosed are a method and apparatus for wireless communication. One example method includes: determining a first orthogonal cover code (OCC) sequence; determining, based on first information, a start time-domain position for an uplink transmission based on the first OCC sequence; and performing, an uplink transmission by using the first OCC sequence, wherein the first OCC sequence is an OCC sequence in an OCC sequence set that is received from a network device, and the first information is associated with timing of at least one of the OCC sequence set or the uplink transmission.

Example embodiments of the present disclosure relate to an effective mechanism for handing the scenario of discontinuous coverage. In this solution, a terminal device receives a demodulation reference signal (DMRS) indication indicating at least one of at least one DMRS port index or a first length of frequency domain orthogonal cover code (FD-OCC) to be used by the terminal device; and determining, based on the DMRS indication, the number of code domain multiplexing (CDM) groups without data is a default value if at least one of the following: the first length of FD-OCC is longer than a second FD-OCC length, at least one of the at least one DMRS port index is comprised in a first port index set, or at least one of the at least one DMRS port index corresponds to the first length of FD-OCC. In this way, in signalling overhead is reduced.

Disclosed in the embodiments of the present disclosure are uplink communication methods and an apparatus. A method comprises: determining a time-domain position or a frequency-domain position at which a terminal sends a demodulation reference signal (DMRS); determining a sequence value of the DMRS sent at each time-domain position or frequency-domain position; and on a physical uplink shared channel (PUSCH) with orthogonal cover code (OCC)-based multi-user multiplexing, sending the DMRS to a network device. Therefore, the terminal can process the sequence value of a DMRS corresponding to a time-domain position which is originally configured for DMRS transmission but is silenced due to OCC multiplexing, thus ensuring DMRS orthogonality between different users performing OCC multi-user multiplexing, reducing interference between users, improving the accuracy of channel estimation, effectively improving the communication efficiency of systems, and improving spectrum and resource utilization rates.

The present application relates to devices and components including apparatus, systems, and methods that support multiple demodulation reference signal (DMRS) ports per code division multiplexing (CDM) group. In an example, a frequency domain orthogonal cover code (FD-OCC) of length three or six is used, thereby allowing at least six DMRS ports for DMRS configuration type 1 with a single symbol DMRS, at least twelve DMRS ports for DMRS configuration type 1 with a double symbol DMRS, at least nine DMRS ports for DMRS configuration type 2 with a single symbol DMRS, and at least eighteen DMRS ports for DMRS configuration type 2 with a double symbol DMRS.

The present disclosure is for updating timing advance for applying an orthogonal covering code for a non-terrestrial network uplink channel in a wireless communication system, and an operation method of a terminal may comprise: receiving configuration information on application of an orthogonal covering code (OCC) in an uplink (UL); generating UL data; applying the OCC for signals in a plurality of slots including symbols including the UL data; transmitting the signals on the basis of a timing advance (TA) value; and updating a UE-specific TA included in the TA value.

The invention discloses a test case generation method and device and a readable storage medium, and belongs to the technical field of automatic software testing. The method comprises the following steps: performing method call analysis on a to-be-tested program to generate a method call set; inputting the test case and a program code into a large language model to generate an initial test case; and evaluating the coverage rate, and if the saturation condition is not met, identifying an uncovered code line and feeding back the uncovered code line to the model to iteratively generate a new case until the coverage rate is saturated. According to the method, the high-coverage test case can be automatically and efficiently generated, and the method is particularly suitable for a scientific calculation program.

The invention discloses an uplink transmission method and device and a terminal, and belongs to the technical field of communication, and the uplink transmission method comprises the steps that the terminal carries out first uplink transmission in at least one target block based on a target orthogonal cover code (OCC) sequence; wherein the at least one target block is obtained by dividing the resource of the first uplink transmission according to a first length, and the first length is a resource length corresponding to one target block.

Examples of the disclosure relate to power control for uplink signals with orthogonal cover codes. In examples of the disclosure a UE obtains an orthogonal cover code (OCC) configuration for an uplink transmission and determines an uplink transmit power based at least in part on the OCC configuration. The UE can then transmit an uplink transmission with OCC based on the determined uplink transmit power.

Various solutions for orthogonal cover code based uplink transmission with respect to user equipment and network node are described. An apparatus may receive an apparatus, an orthogonal cover code (OCC) configuration for an inter-slot time-domain OCC with a physical uplink shared channel (PUSCH) repetition Type A from a network node. The apparatus may apply the inter-slot time-domain OCC on a PUSCH with a Type A repetition according to the OCC configuration. The apparatus may transmit the PUSCH with the Type A repetition to the network node.

A wireless transmit / receive unit (WTRU) is configured to report to a network the WTRU capability for physical downlink control channel (PDCCH) decoding including supported number of discrete fourier transform (DFT) modules and sizes and receive from the network a PDCCH configuration as a search space and control resource set (CORESET) configurations having a spreading factor or an orthogonal code length, a number of frequency resource groups (FRGs) and associated sizes, an indication of code domain multiplexing, and a CORESET format. The WTRU determines resource groups (RG) size and a number of RGs per control channel elements (CCE) based on configured spreading factor and FRG size, and determines an association between RGs and orthogonal cover codes (OCCs) per FRG and orthogonal frequency division multiplexing (OFDM) symbol based on, among other things, the configured spreading factor.

The invention provides an information processing method and device, and the method comprises the steps: an access network device can carry out the line-column transformation of a matrix formed by a current orthogonal coverage code, and obtains a first matrix; the access network device can also send indication information of an orthogonal cover code to the terminal, wherein the orthogonal cover code is obtained according to one row of the first matrix. Analysis is carried out on the first matrix, and it can be known that if Doppler frequency shift exists, the frequency offset resistance of the first matrix is superior to that of a current matrix (such as a Walsh matrix and / or a DFT matrix) formed by orthogonal cover codes. Therefore, the new orthogonal cover code obtained based on the first matrix has high anti-frequency offset capability.

The invention provides a communication method, communication equipment, a communication system and a storage medium, and the method comprises the steps: when multi-user multiplexing transmission is carried out on a physical uplink shared channel (PUSCH) based on an orthogonal cover code (OCC) sequence, the repeated transmission type of the PUSCH is PUSCH reset type B, and the PUSCH is transmitted based on a first transmission mode or a second transmission mode; wherein the first sending mode comprises that a time domain unit boundary is not used for dividing one nominal repeated transmission into two actual repeated transmissions; the second sending mode comprises that any repeated transmission of the PUSCH does not cross a time domain unit. According to the method disclosed by the invention, the orthogonality during OCC mapping can be ensured not to be damaged, and the transmission performance of the PUSCH is ensured.

The present application provides an information processing method and apparatus. The method comprises: an access network device performs row and column transformation on a matrix formed by a current orthogonal cover code, so as to obtain a first matrix; and the access network device further sends indication information of the orthogonal cover code to a terminal, the orthogonal cover code being obtained on the basis of one row of the first matrix. It can be learned from the analysis on the first matrix that if a Doppler frequency shift occurs, the anti-frequency shift performance of the first matrix is better than that of a matrix (e.g., a Walsh matrix and / or a DFT matrix) formed by the current orthogonal cover code. Therefore, a new orthogonal cover code obtained on the basis of the first matrix has a higher anti-frequency shift capability.

Example embodiments of the disclosure relate to methods, apparatuses, and computer readable storage mediumfor demodulation reference signal (DMRS) sequence shift for Narrowband Physical Uplink Shared Channel (NPUSCH) with Orthogonal Cover Code (OCC). In a method, a first apparatus determines a DMRS sequence to be used in an uplink transmission at least based on a first offset, the first offset comprising at least one of: an OCC index for the uplink transmission, or an OCC offset indicating an offset of the DMRS sequence. The first apparatus transmits, to a second apparatus, the uplink transmission and the DMRS sequence. In this way, the DMRS does not need to spread in time, while orthogonality is maintained.

Various aspects of the present disclosure relate to a user equipment (UE) and method for wireless communication by the user equipment that enables application of orthogonal cover code (OCC) within physical uplink shared channel (PUSCH) transmission. The method includes receiving, from a base station, a configuration that includes a set of one or more parameters associated with mapping at least one OCC sequence to a set of one or more symbols. The method includes applying the at least one OCC sequence to a PUSCH transmission based on the received configuration. The method includes performing the PUSCH transmission with the applied at least one OCC sequence. The configuration includes an indication of a type of OCC from among intra-slot, inter-slot, and across symbol OCC.

The present disclosure relates to a transmission method, a communication device, a communication system, and a storage medium. The method comprises: when orthogonal cover code (OCC) multiplexing has been enabled, a terminal determining, on the basis of a first parameter value, a transmission power used for physical uplink shared channel (PUSCH) transmission; and, on the basis of the transmission power, transmitting the PUSCH. Thus, in OCC multi-user multiplexing, the transmission power used for PUSCH transmission can be accurately determined, and a PUSCH transmission effect is improved.