Device supporting multichannel multiple-rate business reception

The device supporting multichannel and multiple-rate business reception consists of at least two base-band circuit boards with completely same demodulation module and decoding module. Received signals is first passed through the demodulation modules in the base-band circuit board and then passed through the decoding module in the base-band circuit board, with the number of demodulation modules ineach base-band circuit board depending on the condition in the communication system. Each base-band circuit board can process several low-speed services and several base-band circuit boards may be used to share the processing of high-speed service. The present invention realizes the optimal correspondence between the system resource and the radio resource while minimizing the sorts of base-band circuit boards.

Sewage treatment system and method of heavy oil catalytic pyrolysis DCC device

The invention discloses a sewage treatment system and method for a heavy oil catalytic pyrolysis DCC device, the heavy oil catalytic pyrolysis DCC device of the system is connected to a liquid inlet of a degassing tank, a liquid outlet of the degassing tank is connected to a liquid inlet of an oil removal tank through a sewage inlet pipe, and a liquid outlet of the oil removal tank is connected to a liquid inlet of a stable storage tank; a liquid outlet of the stable storage tank is connected to a sewage inlet in the top of the fixed bed through a sewage conveying pipe, and a first valve is arranged on the sewage conveying pipe; a release flare mechanism is arranged at an exhaust port of the fixed bed, and a second valve is arranged on the gas conveying pipe; a resin filler layer is arranged in the fixed bed; a sewage outlet at the bottom of the fixed bed is connected to the steam stripping system through a sewage outlet pipe; the organic matter content detection mechanism extends into ...

Cluster communication system

Cluster communication method for mobile network terminal

Composition of daidzein and secoisolariciresinol diglucoside, application of composition as GPR30 agonist in myocardial infarction and medicine

The invention discloses a daidzein and secoisolariciresinol diglucoside composition, application of the composition as a GPR30 agonist in myocardial infarction and a medicine, and belongs to the technical field of traditional Chinese medicine compositions. The mass ratio of daidzein to secoisolariciresinol diglucoside in the traditional Chinese medicine composition is 7: 3-9: 1, and according to experimental data of the invention, the composition can be used as a GPR30 agonist in myocardial infarction treatment.

Primary upload synchronizing method in TDMA system

Automatic gain control system in orthogonal frequency division multiplexing receiver and method

The invention belongs to the technical field of the wireless digital communication, particularly relates to an automatic gain control system in an orthogonal frequency division multiplexing receiver and a method. An antenna of the orthogonal frequency division multiplexing receiver system is sequentially connected with a band-pass filter, a radio-frequency amplifier, an orthogonal demodulator, an analog-to-digital converter, a time domain power processor, a gain controller, a baseband digital gain amplifier, a frame synchronic judger, a frequency domain balancer, a decoder, a frequency domain processor and a gain generator. The time domain power processor, the gain controller, the baseband digital gain amplifier, the frequency domain processor and the gain generator form an automatic gain control system. The frequency domain processor consists of a comparison judger and an energy estimator. The automatic gain control system can prevent the valid signal from being submerged by slowly-decreasing ...

Multi-standby or multi-pass mobile terminal and frequency deviation adjusting method thereof

The invention relates to a multi-standby or multi-pass mobile terminal which only adopts a single reference clock generator. The mobile terminal comprises a plurality of RFU (Radio Frequency Units), the reference clock generator, a plurality of measuring units, an adjusting unit and at least one digital frequency deviation adjusting unit, wherein the RFUs are applied to a plurality of networks respectively; the reference clock generator is used for generating clock signals with a reference frequency and providing the clock signals for all the RFUs; the measuring units are used for measuring the frequency deviations, under the networks, of the mobile terminal respectively; the adjusting unit is used for determining an adjustment frequency deviation on the basis of at least one of the frequency deviations, adjusting the reference frequency of the reference clock generator according to the adjustment frequency deviation, and calculating the residual frequency deviation of at least one of the ...

Wireless resource allocation of multi-carrier telecommunication system

Method and device for identifying base station identify code

The embodiment of the invention discloses a method and a device for identifying a BSIC (Base Station Identify Code). The method comprises the following steps of: receiving a GSM (Global System for Mobile Communication) signal in an idle time window; demodulating SB (Synchronous Burst) to realize identification of BSIC when the SB is searched in the received GSM signal; searching a synchronizing sequence of the SB in the GSM signal when the SB is not searched in the received GSM signal, obtaining the occurrence time of the SB of the next period according to the synchronizing sequence of the SB; and extracting the SB of the next period from the occurrence time of the next period, and demodulating the SB of the next period to realize identification of the BSIC. By adopting the embodiment of the invention, the service quality of high-speed data services can be improved.

Method for defining available signal by terminal under direct connection mode and communication method

一种支持多信道多速率业务接收的装置

... 一种支持多信道多速率业务接收的装置，由至少两块基带电路板构成，各基带电路板的配置包括完全相同的解调、译码两类模块，接收信号先经过各基带电路板上若干个解调模块，然后经过各基带电路板上的1个译码模块，各基带电路板上解调模块数取决于通信系统内的条件。每块基带电路板可以处理多个低速业务，高速业务可以由多块基带电路板分担处理，实现了系统资源与无线资源的良好对应，同时将基带电路板的种类降至最低。 ...

Path maintaining and wheel sideslip control method for four-wheel steering/driving vehicles

The invention discloses a path maintaining and wheel sideslip control method for four-wheel steering/driving vehicles. The path maintaining and wheel sideslip control method for the four-wheel steering/driving vehicles comprises (a), establishing a vehicle body dynamic equation; (b), establishing a wheel dynamic equation; (c), establishing a relational expression between the frictional force and the moment of force; (d), establishing a computational formula for the longitudinal slip ratio and the lateral slip ratio; (e), establishing a path maintaining equation; (f), establishing a control model by controlling the wheel slip ratio; (g), designing a state feedback controller, namely, (g-1), selecting a performance index; (g-2), working out a matrix sum constant and (g-3), designing the controller; (h), obtaining wheel moment of force and a steering angle for a controlled vehicle. The path maintaining and wheel sideslip control method for the four-wheel steering/driving vehicles has the advantages ...

Regeneration method of resin adsorption bed in sulfur-ammonia-containing sewage treatment process

The invention discloses a regeneration method of a resin adsorption bed in a sulfur-ammonia-containing sewage treatment process, which comprises the following steps: S1, opening an upper inlet and a lower outlet, injecting water from the upper inlet, and then collecting liquid flowing out from the lower outlet; s2, stopping injecting water, injecting methylbenzene from an upper inlet, standing and soaking after the methylbenzene fully infiltrates the resin particles, continuously injecting methylbenzene from the upper inlet, collecting liquid flowing out from a lower outlet, and stopping injecting methylbenzene until the liquid flowing out from the lower outlet is transparent; s3, nitrogen is injected from an upper inlet, and liquid flowing out from a lower outlet is collected; after no liquid flows out of the lower outlet, nitrogen injection is stopped, superheated water vapor is blown in from the upper inlet, and the liquid flowing out of the lower outlet is cooled and collected; and ...

Accident monitoring, warning and emergency management system and method

The invention relates to an accident monitoring, warning and emergency management system and method. The system comprises a hazard source on-site monitoring module, a hazard source management module, a map display and management module and an emergency plan judgment module, wherein the hazard source on-site monitoring module is used for monitoring actual running states of ground enterprises and transmitting the current running state of each ground enterprise to the hazard source management module; the hazard source management module is used for updating and storing information of the current running states of the ground enterprises in real time; the map display and management module can construct a map according to information of actual geographical positions of the ground enterprises; the emergency plan judgment module stores triggering conditions of various emergency plans and can judge whether the information in the hazard source management module is abnormal in accordance with the triggering ...

Narrow-band interference resisting method, eNodeB (evolved Node B)and communication system

The invention relates to the communication field, and discloses a narrow-band interference resisting method, eNodeB (evolved Node B) and communication system. The interference of the narrow-band interference to a synchronization channel and a PBCH (physical broadcast channel) channel can be resisted. The narrow-band interference resisting method comprises the following steps: searching a new cell center frequency band in a cell frequency band when an interference frequency band to which a frequency point in a narrow-band belongs is intersected with the cell center frequency band, wherein the cell center frequency band is the frequency band to which a wireless link resource RB (radio beacon) of the cell belongs; generating synchronization information according to a center frequency point of the new cell center frequency band; sending the synchronization information to a terminal so that the terminal can be used for synchronizing according to the synchronization information. The narrow-band ...

System and method for implementing PTT service in 3G mobile communication network

Up-link power controlling method of mobile terminal by time division-CDMA mode

For each up stream time slot n and each transmitting format combination j, the maximum weight value in all possible combination of Yn,j,i and Bj in the time slot is obtained. Yn,j,i is weighting factor of number n slot time corresponded by number j code channel at number j kind transmitting format combination. According to input range of full range of DAC, amplifies the Bj to Bn,j, to make utmost numeric area of DAC approach to full range of DAC. Bn,j presents number n up stream time slot, and number j TFC weighting factor. For each up stream time slot, the independent and initial simulation weighting gain factor is allocated to terminal in order to make each time slot transmitting power meet the requirement of network.

Method for reducing terminal power consumption using public physic channel information

Uplink synchronization method and device and network equipment

The invention discloses an uplink synchronization method, an uplink synchronization device and network equipment. The method comprises the following steps of: receiving a random access request initiated by a terminal; determining the arrival time range of an uplink synchronization signal according to the specific timing advance (TA) value and a signal propagation zero delay; searching the uplink synchronization signal in the arrival time range of the uplink synchronization signal according to the set detection window length; and if the uplink synchronization signal sent by the terminal according to the specific TA value is searched, continuing the random access process. The method can reduce the calculated amount of uplink synchronization detection by optimizing the uplink synchronizationprocess, so that a home base station which uses a cheap baseband processing chip with low processing capacity can complete uplink synchronization detection.