102 results about "Covering code" patented technology

A method and apparatus of a User Equipment (UE) to simultaneously transmit information of a first type and information of a second type over a number of transmission symbols, the information of the first type and the information of the second type being respectively associated with a first Orthogonal Cover Code (OCC) and a second OCC, wherein a length of each OCC is equal to the number of transmission symbols. The method includes multiplying, at each transmission symbol, the information of the first type with a respective element of the first OCC to obtain a first output; multiplying, at each transmission symbol, the information of the second type with a respective element of the second OCC to obtain a second output; summing the first output and the second output to obtain a combined output; and transmitting the combined output.

The present invention discloses a DMRS (demodulation reference signal) indication method. The method includes the following steps that: designated DMRS ports, layers and orthogonal cover code (OCC) lengths are assigned to user equipment (UE) according to a DMRS configuration parameter indication table; various kinds of DMRS configuration parameter indication entries of various kinds of OCC length combinations containing at least two OCC lengths are recorded in the DMRS configuration parameter indication table; and corresponding DMRS indication information is generated according to the DMRS configuration parameter information assigned to the UE, and the corresponding DMRS indication information is sent to the UE. The present invention also discloses a base station, UE (user equipment) and a DMRS (demodulation reference signal) indication system.

The invention provides a dynamic symbolic execution method and a device of the dynamic symbolic execution method based on an overall situation super block dominator graph and belongs to the field of computer software testing and software security. The method is as follows: a control flow diagram of a tested executable program is obtained, and the control flow diagram is transformed to a super block dominator graph according to relevant theories of a dominance relation. Each nodal point in the super block dominator graph is marked with 'weight' which is updated before symbolic execution at each time, and the 'weight' indicates the least number of basic blocks which can be covered when the nodal point is executed. When one dynamic symbolic execution is over, the nodal point with the largest 'weight' value is selected from the super block dominator graph, and corresponding forecasting path constraint conditions are generated, and then a new testing use case is generated by solving of a solver, so that the next execution is driven. Compared with the prior art, the dynamic symbolic execution method and the device of the dynamic symbolic execution method based on the overall situation super block dominator graph are capable of covering code blocks as many as possible with least testing use cases, so that the growth rate of the code coverage rate is effectively accelerated, and the problem of path explosion is relieved. The dynamic symbolic execution method and the device of the dynamic symbolic execution method based on the overall situation super block dominator graph is of great importance for the performance of testing large-scale utility software of the dynamic symbolic execution.

The embodiment of the invention discloses a resource allocation method of a dedicated demodulation reference signal and a relevant device, wherein the resource allocation method of the dedicated demodulation reference signal comprises the steps of: determining number of transmission layers on which UE (User Equipment) transmits uplink data; according to the determined number of the transmission layers, selecting to generate a combination allocation of CS (Cyclic Shift) and OCC (Orthogonal Cover Code) sequence resources required to be adopted by DMRS (Demodulation Reference Signals) of all transmission layers on which the UE transmits the uplink data from one combination allocation item of a plurality of preset combination allocation items of the CS and OCC sequence resources adopted by the DMRS sequences of all transmission layers and set aiming at the number of the maximum transmission layers supported by a system; and generating and sending a control signaling including allocation indication information to the UE. According to the scheme of the embodiment of the invention, the complexity of describing the DMRS resource allocation by a protocol can be simplified, and the DMRS interference among codons is favorably improved.

A Method of scrambling reference signals, device and user equipment using the method are provided. In the method, a plurality of layers of reference signals assigned on predetermined radio resource of a plurality of layers of resource blocks with the same time and frequency resources are scrambled, the method comprising: an orthogonalizing step of multiplying each layer of reference signal selectively by one of a plurality of orthogonal cover codes (OCCs) with the same length wherein the OCC multiplied to a first layer of reference signal can be configured as different from those multiplied to other layers of reference signals; and a scrambling step of multiplying all of symbols obtained from the OCC multiplied to each of the other layers of reference signals by a symbol-common scrambling sequence wherein the symbol-common scrambling sequences can be different from each other for reference signals multiplied by the same OCC.

Methods and User Equipment (UE) apparatuses are provided for transmitting Reference Signals (RSs). A method includes receiving a cell-specific sequence-hopping parameter; receiving a UE-specific sequence-hopping parameter; determining a reference signal sequence based on the UE-specific sequence-hopping parameter; and transmitting the reference signal based on the determined reference signal sequence. Sequence hopping does not apply to the reference signal sequence if the cell-specific sequence-hopping parameter indicates that the sequence hopping is enabled and the UE-specific sequence-hopping parameter indicates that the sequence hopping is disabled.

Methods and apparatuses are provided to enable User Equipments (UEs) to apply Orthogonal Covering Codes (OCC) to the transmission of Reference Signals (RS) generated from Constant Amplitude Zero Auto-Correlation (CAZAC) sequences, to enable hopping of these sequences in a communication system in conjunction with enabling the application of OCC, and to differentiate the application of sequence hopping between transmissions in data channels and transmissions in control channels.

The invention discloses a transmission method for a demodulation reference signal of a physical uplink shared channel and user equipment (UE). The method comprises the following steps that the UE receives signaling configuration information for the UE to determine the demodulation reference signal of the physical uplink shared channel; and the UE determines the demodulation reference signal of the physical uplink shared channel by using the signaling configuration information, and transmits the demodulation reference signal, wherein the signaling configuration information comprises at least one of parameters of UE-specific sequence group number offset, a UE-specific cell identification number, UE-specific cell identification offset, UE-specific sequence group pattern offset, UE-specific sequence shift pattern offset and UE-specific or cell-specific CS (cyclic shift) hopping-enabled signaling. According to the scheme, the problem that an OCC (orthogonal cover code) cannot be accurately decoded due to inconsistent CS hopping patterns and the problem of collision of a UE-specific sequence and a cell-specific sequence can be effectively solved, so that the performance of a CoMP (coordinated multiple point) system is improved, and the resource utilization rate of the CoMP system is increased.

A method is described for transmitting, by a user equipment (UE), a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH) in a wireless communication system. A cyclic shift field is received through a physical downlink control channel (PDCCH) from a base station. The cyclic shift field indicates first, second, third and fourth cyclic shifts, first orthogonal cover code (OCC) and a second OCC. A first DMRS sequences is generated by using the first cyclic shift and the first OCC. A second DMRS sequence is generated by using the second cyclic shift and the first OCC. A third DMRS sequence is generated by using the third cyclic shift and the second OCC. A fourth DMRS sequence is generated by using the fourth cyclic shift and the second OCC. The first, second, third and fourth DMRS sequences are transmitted to the base station.

A method of book production wherein a customer sends a computer file of a book to a producer whose computer book production program restructures the text and cover data to fit a standard / preferred size accommodated by the producer's book binding system. The program then calculates the spine dimensions, and this is sent to the customer for determining a layout and content for printing on the spine. The layout is sent to the producer who inserts it into the book production program with a job identification spine code. The producer inserts a code in the cover data identifying the corresponding text and spine. At the beginning of each day / production run, the producer simply enters the covers in the desired order into the production program. The program reads the cover code, which identifies the corresponding stack and spine and directs the printing and binding accordingly.

A method and device for transmitting a reference signal in a wireless communication system is provided. A base station maps each demodulation reference signal (DMRS) of each of a plurality of layers into a first resource element (RE) set and a second RE set including four REs over four orthogonal frequency division multiplexing (OFDM) symbols within a subframe, allocates first orthogonal cover codes (OCCs) having a length of 4 to each DMRS mapped into the first RE set, allocates second OCCs having a length of 4 to each DMRS mapped into the second resource element set and transmits each DMRS mapped into the first RE set and the second RE set. The subframe includes two slots and each slot includes six OFDM symbols. The second OCC are formed by swapping positions of bits that constitute the first OCCs.

A method of book production wherein a customer sends a computer file of a book to a producer whose computer book production program restructures the text and cover data to fit a standard / preferred size accommodated by the producer's book binding system. The program then calculates the spine dimensions, and this is sent to the customer for determining a layout and content for printing on the spine. The layout is sent to the producer who inserts it into the book production program with a job identification spine code. The producer inserts a code in the cover data identifying the corresponding text and spine. At the beginning of each day / production run, the producer simply enters the covers in the desired order into the production program. The program reads the cover code, which identifies the corresponding stack and spine and directs the printing and binding accordingly.

Provided in one disclosure of the present specification provides a method for transmitting a physical uplink control channel (PUCCH) including uplink control information (UCI), when more than five cells are used by a user equipment (UE) according to carrier aggregation. The method may comprise the steps of: encoding UCI of K bits, which exceeds 20 bits, and outputting encoded bits of N bits; and mapping on resource elements (RE) in an uplink subframe, without applying an orthogonal cover code (OCC) to the encoded N bits, wherein the uplink subframe may include two symbols, and wherein each symbol may include 12 subcarriers on a frequency axis and six or seven symbols on a time axis. The mapping step may be carried out according to a symbol index and from among symbols remaining after excluding symbols for a demodulation reference signal (DMRS) and a subcarrier index.

The invention provides an uplink reference signal transmission method executed by user equipment UE. The method comprises the following steps: determining one or a plurality of parameters, wherein the one or a plurality of parameters are used for generating a Demodulation Reference Signal DMRS of a Narrowband Internet of Things Physical Uplink Control Channel NB-PUCCH, wherein for single-tone uplink transmission, a parameter used for generating the DMRS comprises an orthogonal cover code OCC sequence and a basic sequence; for multi-tone uplink transmission, a parameter used for generating the DMRS comprises cyclic shift, the OCC sequence and the basic sequence; based on the determined parameters, generating the DMRS of the NB-PUCCH; and transmitting the generated DMRS of the NB-PUCCH to a base station. Correspondingly, the invention further provides an uplink reference signal receiving method executed by the base station, and the UE and the base station which respectively execute the above method.

The invention discloses a transmission method and a transmission device for a demodulation reference signal of a physical uplink control channel. The method comprises the following steps that user equipment (UE) receives UE-specific signaling configuration information from a base station; the UE determines the demodulation reference signal of the physical uplink control channel of the UE according to the UE-specific signaling configuration information; and the UE transmits the demodulation reference signal of the physical uplink control channel. According to the method and the device, the problems that inter-cell interference exists due to the fact that the demodulation reference signal of the physical uplink control channel of the UE can only be determined according to cell-specific signaling configuration information and that an OCC (orthogonal cover code) cannot be accurately decoded in the prior art can be solved, and the effects of improving the orthogonality of inter-cell physical uplink control channels, increasing the resource utilization rate of a CoMP (coordinated multiple point) system, reducing the inter-cell interference in the CoMP system and favorably improving the performance and the resource effectiveness of the CoMP system are further achieved.