40results about How to "Increase multiplexing capacity" patented technology

The invention discloses a resource allocation method and a resource allocation system for uplink demodulation reference signals (DMRSs). The method comprises the following steps: a base station allocates N resources or N parameter sets which are used for sending the uplink DMRSs for a user terminal through high-level signaling, and indicates that one of the N resources or one of the N parameter sets is used for the user terminal to send the uplink DMRSs through K bits in downlink control information; and the user terminal sends the uplink DMRSs by using a source or a parameter set indicated by the K bits, wherein both N and K are positive integers. The scheme saves the consumption of singling and dynamically allocates the resources or the parameter sets for the DMRSs for UE (User Equipment) among cells, so that the orthogonality of the DMRSs of the UE among different cells can be realized, the scheduling restrictions are overcome, the multiplexing capacity of the DMRSs is strengthened, and the problems in related technologies that the orthogonality of the DMRSs of the UE among the different cells cannot be realized, the scheduling restrictions exist, the multiplexing capacity of the DMRSs is insufficient are solved, thereby improving the transmission performance of a system.

The invention discloses a method and a system for sending an SRS (survey reference signal); the method comprises the following steps: user equipment (UE) transmits the SRS to a base station on a time domain resource, a frequency domain resource and/or a code domain resource, wherein the time domain resource comprises the last time domain sign, the first time domain sign or the last but one time domain sign of a sub-frame of an SRS cycle; the frequency domain resource comprises a frequency domain location of the SRS or a sending frequency comb of the SRS, the code domain resource is obtained by the following method: a sequence group number of the SRS is generated by the UE according to a parameter which is configured for the UE by the base station through a high level signaling and is proprietary by users, and the code domain resource which is needed for sending the SRS is determined according to the generated sequence group number of the SRS. The available resource of the SRS is increased, the user multiplexing capacity of the SRS is improved, and the channel estimation quality of the base station to the SRS is improved, therefore, the application of the coordinated multi-point transmission technology to the system is supported effectively.

The invention provides a method and a system for sending a measuring reference signal. The method comprises the following steps: issuing configuration information sending a survey reference signal (SRS) to a user by a base station, wherein the configuration information comprises precoding enabling indication information used for indicting whether the SRS is precoded or not; receiving configuration information by a user terminal; when the precoding enabling indication information indicates and enables, precoding the SRS to be sent and sending a precoded SRS to the base station by the user terminal; and when the precoding enabling indication information does not indicate and enable, sending the SRS which is not precoded to the base station. According to the technical means provided by the invention, the technical problems of insufficient user multiplexing capacity of the SRS in the relevant technology is solved so as to save SRS resource and effectively improve the SRS resource use rate, thereby improving the user multiplexing capacity of the SRS.

The invention relates to a micro-structure fiber optic Fabry-Perot cavity quasi based quasi-distributed sensor, which comprises a broadband light source (1), a fiber optic circular (2), a plurality of sensor units (3), a sensor-based optical fiber (4), an optical spectrum analyzer (5) and a data processor (6), wherein each sensor unit (3) is a micro-structure fiber optic Fabry-Perot cavity, and the sensor units are connected in series and are integrated on the sensor-based optical fiber (4); and three ports of the fiber optic ring device (2) are respectively connected with the broadband light source (1), the sensor-based optical fiber (4) integrating all sensor units, and the optical spectrum analyzer (5), and the optical spectrum analyzer (5) is connected with the data processor (6). The micro-structure fiber optic Fabry-Perot cavity quasi based quasi-distributed sensor has the advantages of large sensing capacity, simple structure, low cost, wide application prospect and the like.

The invention discloses a method and device for interference processing and signal notification among nonorthogonal user equipment, and the signal notification method comprises the steps: notifying target user equipment of at least one piece of the following information for interference removing: paired user equipment information of the target user equipment, data transmission related configuration parameter information of the paired user equipment, and demodulation pilot frequency related configuration parameter information related with the data transmission of the paired user equipment. The same time frequency resources or partly identical time frequency resources and different transmission powers are configured for the data transmission of the target user equipment and the data transmission of the paired user equipment. Moreover, nonorthogonal demodulation pilot frequency resources are configured for the demodulation pilot frequency related with the data transmission of the paired user equipment and the demodulation pilot frequency related with the data transmission of the target user equipment.

The invention provides a sounding reference signal transmission method, network side equipment and user equipment, and belongs to the field of communication. The sounding reference signal transmission method used for the network side equipment comprises the steps that parameter configuration information of the user equipment UE used for transmitting SRS is determined; and the determined parameter configuration information is indicated to the UE so that the UE is enabled to use the unused DMRS resources to transmit the SRS according to the parameter configuration information. According to the technical scheme, the influence on the DMRS can be reduced as much as possible when the unused DMRS are reused for SRS transmission so that the multiplexing capacity can be enhanced and the great orthogonal performance can be maintained.

The invention discloses a double-core FBG (fiber bragg grating) array sensing network. The output end of a scanning laser is connected with a semiconductor amplifier, and the output end of the semiconductor amplifier is connected with an optical circulator. An optical connector is connected with the optical circulator, and the optical circulator is connected a first FBG array and a second FBG array in a double-core FBG array. The optical circulator is connected with the input end of a photoelectric detector, and the output end of the photoelectric detector is connected with a grid wavelength detection electric signal input end of a demodulator. A semiconductor light amplification drive signal output end of a pulse function generator is connected with a drive signal input end of the photoelectric detector. A demodulation control signal output end of the pulse function generator is connected with the demodulation control signal input end of the demodulator. A pulse function generator drive signal output end of the demodulator is connected with a drive signal input end of the pulse function generator. The network is high in stability, is low in loss, and has no temperature interference.

The invention provides a fiber Bragg grating sensing device. A resonant cavity of the fiber Bragg grating sensing device consists of different sensors and a reflection-type semiconductor optical amplifier driven by pulse signals with different frequencies, so that different sensor signals can be read. The problem that the quantity of sensors in the traditional fiber Bragg grating wavelength division multiplexing technology is limited by the bandwidth of a light source is solved by a time division sensor access mode. Owing to a resonant cavity technology, sensing signals can be amplified in the cavity, so that the problem of low signal-to-noise ratio of sensing signals in the traditional time division multiplexing technology is solved. Time division multiplexing and wavelength division multiplexing are combined in a mixed multiplexing technology, so that the sensors are grouped, sensor groups are accessed in a parallel-serial matched mode, and sensor multiplexing capacity a system is greatly improved.

The invention provides a signalling configuration method and apparatus. The method comprises: a base station notifies user equipment of the first special subframe configuration and the second special subframe configuration through a first signalling and a second signalling, wherein the base station and the user equipment determine the first special subframe configuration according to the first signalling, and determine the second special subframe configuration according to the first signalling and the second signalling, or determine the second special subframe configuration according to the second signalling. The signalling configuration method and apparatus solve the problem of low multiplexing capacity of a SRS, and improves the multiplexing capacity of the SRS.

The invention discloses a battery temperature monitoring and alarming system for an electric automobile. The battery temperature monitoring and alarming system comprises a light source, a first coupler, a same-wavelength fiber grating sensor array, a dense wavelength division multiplexer, a photoelectric detector, a monitoring and alarming circuit, a second coupler and a narrow-band filter. According to the technical scheme, the relative variation and absolute value of the working temperature of the battery can be monitored at the same time, and the purpose of alarming is achieved; and high-density point temperature health monitoring of the battery pack is realized, the complexity of a temperature measurement system is reduced, the cost is reduced, and commercialization is facilitated.

Methods and compositions for the detection and quantification of nucleic acids are provided. In certain embodiments, methods involve the use of cleavable probes capable of forming double-stranded structures, such as hairpin structures, which probes can be distinguished from one another on the basis of reporter signal, melt properties, or both.