40results about How to "Save power overhead" patented technology

The invention discloses an analog / digital configurable variable-gain amplifier, which comprises a variable-gain amplifier module VGA and an analog / digital configurable control circuit. The variable-gain amplifier module is formed by a plurality of variable-gain amplifiers and a fixed-gain amplifier in concatenation connection. The analog / digital configurable control circuit comprises an analog mode control circuit and a digital mode control circuit. A comparator and a charge pump of the analog mode control circuit detect the size of amplitude of an output signal, output an appropriate control voltage and feed back the control voltage to the VGA so as to regulate the gain of the VGA. The digital mode control circuit controls an internal switch circuit by means of an external signal, generates the control voltage by means of a decoder and an I-V converter according to an input signal provided by a digital baseband processing module chip and feeds back the control voltage to the VGA so as to change the gain of the VGA. The analog / digital configurable variable-gain amplifier can flexibly switch between an analog mode and a digital mode and is especially suitable for a radio-frequency front end circuit for different baseband chips.

The invention provides a random access method. The method comprises the following steps: transmitting a randomly-selected random access preamble; and receiving a random access response message, and if a conflict indication area in the random access response message indicates that a conflict occurs, ending a current random access process, and retransmitting a randomly-reselected random access preamble; alternatively, if the conflict indication area in the random access response message indicates that the conflict occurs, judging the priority of current random access, and if the priority is high, sending a random access message 3, and continuing the current random access process, otherwise, ending the current random access process, and retransmitting the randomly-reselected random access preamble. Through adoption of the method, the random access delay can be reduced, and the power consumption of user equipment is saved.

The invention belongs to the technical field of the modulation carrier system, and discloses an iterative detection method of joint channel estimation in a FBMC system. The method comprises the following steps: eliminating interference in a first-order neighbor domain by using auxiliary pilot to accomplish a channel initial estimation value; estimating the interference out of the first-order neighbor domain by uniting the iterative detection, and feeding back the interference to modify the channel initial estimation value, thereby improving the estimation precision and acquiring an accurate detection result. Compared with the traditional orthogonal frequency division multiplexing technology, and the multi-carrier technology of a filter bank has higher spectrum use ratio, lower out-of-bandinterference and better synchronization robustness without using the cyclic prefix. Since the FBMC / OQAM system satisfies the orthogonality at the real-number field, and inherent imaginary part interference is existent in the complex field, and the great challenge is brought to the channel estimation. The simulated analysis result shows that the algorithm provided by the invention is fast in convergence rate and high in estimation precision.

An embodiment of the invention relates to the wireless communication technology field and especially relates to a cell reselection method, a system and equipment thereof. In the prior art, when a cell reselection process is applied in a CR system, user equipment cell reselection delay during CR system frequency spectrum switching is obviously increased and power cost of the cell reselection is increased too. By using the method, the system and the equipment of the invention, the above problems are solved. The method comprises the following steps that user equipment receives standby frequency point information from network side equipment, wherein the standby frequency point information comprises at least one standby frequency point, after the cell reselection is needed to be performed, according to a standby frequency point in the standby frequency point information, a target cell is determined; according to the determined target cell, the cell reselection is performed. The network side equipment notifies the standby frequency point information of the cell reselection during frequency spectrum switching the user equipment so that the user equipment carries out the cell reselection according to the standby frequency point information. Cell reselection delay and power cost of the cell reselection of idle state user equipment during the frequency spectrum switching are reduced.

The invention discloses a spatial domain and power domain joint multiple access method and system based on signal virtual decomposition, the system comprises a plurality of expected transmitters, a harmonic transmitter and a common receiver, and the common receiver and all transmitters share channel state information. A harmonic transmitter obtains an orthogonal basis through traversal to minimize harmonic power, shares the orthogonal basis to an expected transmitter and a common receiver, and solves harmonic signals by taking spatial features represented by basis vectors contained in the orthogonal basis as directions of multiple paths of expected signals, so as to obtain multiple paths of expected signals. The expected transmitter determines a matched filtering vector of the receiving end according to the orthogonal basis, calculates expected data gain and sends the expected data gain to the receiving end, the harmonic signal interacts with the actual sending signal at the receiving end, the common receiver filters the mixed signal, and then the expected data gain is divided by the filtering output to obtain expected data. Therefore, the common receiver recovers multiple paths of expected data from the received mixed signal without interference.

The invention discloses an interference guiding method in a wireless local area network, mainly used for solving the problem that in existing interference management technologies, a system is low in spectrum efficiency as an interference communication transmitter is large in power overhead for sending an interference management signal. The scheme of the method comprises the following steps: 1) each access point detects and shares channel state information and data information; 2) a target communication transmitter and the interference communication transmitter respectively compute pre-coding vector and a filtering vector for sending desired signals; 3) a control center computes the pre-coding vector and the power overhead of an interference guiding signal according to the pre-coding vector and the filtering vector; and 4) the access point sends the interference guiding signal according to the pre-coding vector and the power overhead acquired in the step 3), thus achieving interference guiding. According to the method provided by the invention, interference can be eliminated, power overhead of the target communication transmitter for sending the interference guiding signal can be reduced, spectrum efficiency of the system can be improved, and thus the method can be applied to wireless communication network systems.

The invention discloses a receiving method and a receiving device and provides the following proposal: a user terminal receives information from E-AGCH in a determined receiving mode, and a network side notifies the user terminal with the present E-AGCH receiving mode by high-layer signaling or information that is transmitted on a physical control channel; otherwise the network side and the user terminal preliminarily make an agreement on the E-AGCH receiving mode, and consequently the network side and the user terminal can implement corresponding processing and avoid the processing inconsistence that is caused by inconsistent understanding. The network side and the user terminal have unified and same acknowledge on E-AGCH sending and receiving times. The invention further provides a plurality of different notifying ways and receiving modes, thus having flexible configuration under different situations. Furthermore, the invention can greatly save power consumption of the user terminal and avoid unnecessary wasting under the situation that the user terminal does not need continuous receiving.

The application discloses and provides a control method of terminal channel quality measurement. According to the method, and in allusion to a low mobility characteristic of machine-to-machine (M2M), an M2M terminal is controlled to measure the channel quality of a district in a manner of prolonging a cycle, so that the M2M terminal does not need to measure the channel quality frequently. By the present invention, the power consumption of the channel quality measurement of the M2M terminal can be reduced, thereby optimizing the channel quality measurement of the M2M terminal.

The invention discloses a wireless distributed computing system and a resource allocation method, which are suitable for the technical field of mobile communication. The system comprises a plurality of main nodes and computing nodes, wherein the main nodes distribute computing tasks and collect computing results, the computing nodes execute the computing tasks and feed back the computing results, and the main nodes are connected with the computing nodes through wireless channels; the resource allocation method comprises a computing node scheduling method and a computing node power allocation method; according to the channel information of each computing node, the main node selects a computing node for executing a computing task for the main node; and the computing node distributes computing power and communication power according to the channel information and the computing power thereof, so that the computing rate of the system is maximized. Data collection and joint processing work is completed by using a large number of small devices, and the requirement for a large number of special computing hardware is avoided. According to the resource allocation method, limited power can be effectively utilized, and maximization of computing power is achieved.

The invention relates to a communication method, a communication device and a storage medium. The communication method is applied to the terminal and comprises the steps that a model used for mobilitymanagement is determined, and the model used for mobility management comprises one or more of a first model, a second model and a third model; the mobility management includes one or a combination ofpredicting an application scenario, configuring measurement parameters, and determining a cell for communication / residence. According to the invention, the frequency point, time and port measurementfrequency can be reduced, and the power overhead is reduced.

The embodiment of the invention discloses an information acquisition method comprising steps of: receiving first information transmitted by an eNB, wherein the first information includes a preset threshold that user equipment does not transmit data; and determining whether the number of times or the ratio that the user equipment does not transmit data exceeds the preset threshold according to the first information; sending a data resource usage indication to the eNB if yes in order that the eNB obtains the service condition of the data resources of the user equipment according to the data resource usage indication. The embodiment of the invention also discloses an information acquisition device.

A method, system and device for an electric generator comprising dynamically selectable number of generator disk assemblies.

The invention provides an information transmission method and device, communication equipment and a storage medium, and belongs to the technical field of wireless communication. The method comprises the steps that the state of an initial bandwidth part Initial BWP of light user equipment Redcap UE is acquired, and then a first system information block SIB which can be read by current general UE or a second SIB exclusive to the Redcap UE is sent according to the state of the Initial BWP. In the method, based on the state of the initial bandwidth part Initial BWP of the Redcap UE, whether the second SIB exclusive to the Redcap UE or the first system information block SIB which can be read by the general UE is sent is determined, unnecessary system message updating is avoided, and power overhead is reduced.

The invention discloses a wireless intelligent sound box, a wireless intelligent sound box interconnection system and a networking method thereof. The wireless intelligent sound box comprises a box body, a speaker arranged inside the box body and a PCBA board used for controlling wireless networking of the sound box, wherein the PCBA board is electrically connected with the speaker, the PCBA boardis internally provided with a control module, a wireless Wifi module electrically connected with the control module and a Strong Link module in direct ac coupling connection with the wireless Wifi module through an Ethernet interface, and the Strong Link module can actively establish a wireless connection with the other neighboring Strong Link modules. The intelligent sound box can be used as a connection node to automatically connect the other neighboring intelligent sound box devices to form a decentralized wireless intelligent sound box interconnection system, the sound box devices are inintelligent interconnection, the intelligent interconnection has no concern with a position of an interface center, and only the connection with nearby base stations needs to be considered; a bucketseffect is avoided, and power of the whole system is minimal; connection directions are judged intelligently, wireless connection can be realized through automatically adapting to the site where conditions are changed, and manual intervention is not needed

The invention discloses a dimension reduction multi-beam antenna system. The system is characterized in that: an N / n-in N-out (e.g., two-in eight-out) feed network is designed between radio frequency ports and an antenna, an antenna system architecture is optimally designed, based on the design, the number of the radio frequency ports can be reduced to 1 / n (e.g., 1 / 4) of an existing scheme, and antenna beam dimension reduction is correspondingly carried out, so that unnecessary channel resource waste is reduced through dimension reduction, and the formed beam direction can meet the predetermined space coverage requirement of the pitching surface. Therefore, the dimension reduction multi-beam antenna system greatly reduces the number of radio frequency links, correspondingly reduces the dimension of matrix operation in rear-end signal processing, and reduces the calculation power consumption. In addition, the power input state of each group of beams can be independently adjusted in real time according to user distribution, and the power expenses in a few-user or no-user scene within the coverage range of a certain beam cluster can be correspondingly reduced.

This invention discloses one digital television broadcast signal modulation method, which comprises the following steps: multiplying data signals, pre-generated frequency characters and synchronous wave load and zero wave load distributed symmetrically, wherein, the said guidance characters occupies one part wave load with each load wave not adjacent distributed; the time area signals adds protection isolation with zero filled to form one OFDM character by use of more than one OFDM character and one front frequency signal to generate base band send signals.

The invention belongs to the technical field of modulated carrier systems, and discloses an iterative detection method for joint channel estimation in an FBMC system, which uses auxiliary pilots to eliminate interference in the first-order neighborhood, and completes the initial channel estimation value; joint iterative detection estimates outside the first-order neighborhood interference, and feed it back to correct the initial channel estimate, improve the estimation accuracy, and obtain accurate detection results. Compared with the traditional orthogonal frequency division multiplexing technology, the filter bank multi-carrier technology of the present invention does not need a cyclic prefix, and has higher frequency spectrum utilization rate, lower out-of-band interference and better synchronization robustness. Since the FBMC / OQAM system is orthogonal in the real number domain, but there is inherent imaginary part interference in the complex number domain, it brings great challenges to channel estimation. Simulation analysis results show that the algorithm proposed by the invention has fast convergence speed and high estimation precision.

The embodiment of the present invention relates to the field of wireless communication technology, and in particular to a cell reselection method, system, and device, which are used to solve the problem that when the cell reselection process in the prior art is applied to the CR system, the spectrum switching of the CR system is obviously increased. When the cell reselection of the user equipment is delayed, the power overhead of the cell reselection is increased. The method in the embodiment of the present invention includes: the user equipment receives standby frequency point information from the network side equipment, wherein the standby frequency point information includes at least one standby frequency point, and after determining that cell reselection is required, according to the standby frequency point information in the standby frequency point information Frequency point, determine the target cell; perform cell reselection according to the determined target cell. Since the network side equipment notifies the user equipment of the standby frequency point information for cell reselection during spectrum switching, so that the user equipment performs cell reselection according to the standby frequency point information, thereby reducing the frequency of idle state user equipment during spectrum switching. Cell reselection delay and power overhead of cell reselection.

The embodiment of the present invention discloses a method for sending control information, a detection method, a base station, and user equipment. In the embodiment of the present invention, a method for sending control information includes: the base station determines target control information and features corresponding to the target control information information, the target control information is the information for the base station to schedule the target user equipment; according to preset rules and the feature information, in the resource block set corresponding to the target coverage level, determine the target resource corresponding to the target control information block subset, and arbitrarily select an available resource block from the target resource block subset as the target resource block, and use the target resource block to send the target control information. The embodiments of the present invention reduce the power overhead required by the user equipment to detect and receive the control information when the control information is sent to the user equipment.

The present invention discloses a receiving method and a device. In the scheme provided by the invention, after the receiving mode of user terminal on E-AGCH is confirmed, the user terminal receives information on the E-AGCH with a confirmed receiving mode so that the two sides of network side and user terminal can execute corresponding processing. The different processing caused by different understanding does not exist. Thus the perception of network side and user terminal to the E-AGCH transmitting and receiving time can be unified. Additionally, the invention provides a plurality of different informing modes and receiving modes. The receiving mode can be a continuous receiving mode, or a periodic non-continuous receiving mode, or a caching occupancy triggering mode. The receiving modecan be flexibly configured according to different conditions. Additionally, the power expenditure of user terminal can be greatly saved at the state that the continuous receiving of user terminal is not required.

The invention discloses a synchronization signal block position indication method, network equipment, terminal equipment and a computer storage medium. The method comprises the following steps: determining a transmission position of a synchronization signal block of at least one first type cell; sending the transmission position of the synchronization signal block of at least one first type cell to the terminal equipment through signaling, wherein the terminal equipment is located in the range of the second type of cells managed by the network equipment.

The invention discloses a signal modulation method for digital television broadcasting. The method comprises: multiplexing data signals, pre-generated pilot symbols and synchronous band symbols in the frequency domain, and performing orthogonal frequency division multiplexing on the multiplexed data Use (OFDM) modulation to obtain a time-domain signal; the synchronization band symbol includes a subcarrier that transmits a synchronization symbol and a zero-set subcarrier that does not transmit any information, and the zero-set subcarrier is symmetrical on both sides of the subcarrier that transmits a synchronization symbol Distribution; the pilot symbols occupy a part of subcarriers, and the occupied subcarriers are not adjacent to each other; add a guard interval before the time domain signal, and fill in 0 in the guard interval to form an OFDM symbol; use more than one OFDM symbol and a preamble pilot signal to generate a baseband transmit signal. At the same time, the invention also discloses a signal modulation device for data television broadcasting. The modulation method provided by the invention has the characteristics of low power consumption, fast synchronization and low peak-to-average ratio.

The invention discloses an interference guiding method in a wireless local area network, mainly used for solving the problem that in existing interference management technologies, a system is low in spectrum efficiency as an interference communication transmitter is large in power overhead for sending an interference management signal. The scheme of the method comprises the following steps: 1) each access point detects and shares channel state information and data information; 2) a target communication transmitter and the interference communication transmitter respectively compute pre-coding vector and a filtering vector for sending desired signals; 3) a control center computes the pre-coding vector and the power overhead of an interference guiding signal according to the pre-coding vector and the filtering vector; and 4) the access point sends the interference guiding signal according to the pre-coding vector and the power overhead acquired in the step 3), thus achieving interference guiding. According to the method provided by the invention, interference can be eliminated, power overhead of the target communication transmitter for sending the interference guiding signal can be reduced, spectrum efficiency of the system can be improved, and thus the method can be applied to wireless communication network systems.

Embodiments of the invention provide load balancing apparatuses and methods for ultra-dense network non-ideal Backhaul deployment. The load balancing apparatuses provided by the invention are arranged in a BS (Base Station) of a small cell, multiple BSs of the small cell are in a coverage area of a micro base station. The apparatus acquires the total throughput of users of the small cell through calculation, and compares the throughput with the non-ideal backhaul capacity of the small cell; if the throughput exceeds the backhaul capacity, the small cell does not adjust the power so as not to split users in the macro base station; if the throughput is less than the backhaul capacity, and the power of the small cell is less than the maximum transmit power, the small cell adjusts according to a determined power factor adjustment step length so as to split users in the macro base station. Base on the result of load balancing processing, the small cell splits users according to self backhaul capacity. Through adoption of the methods and apparatuses, the problem of dynamic user distribution by the small cell according to self backhaul capacity and power limitation in the existing non-ideal backhaul deployment scenario is solved.

Determine whether the number or ratio of the number or ratio of the data that the user's device is not sent exceeds the preset threshold; if the number or ratio of the number or ratio of the data of the user device is not sent,In order to facilitate the use of the use of the data resources of the base station to obtain the use of the data resources of the user device.Examples of the present invention also disclosed an information acquisition device at the same time.

The invention discloses a vehicle-mounted 4G active integrated gain antenna. The vehicle-mounted 4G active integrated gain antenna comprises a PCB antenna module, an active gain amplification module, and a terminal radio-frequency input RF IN module. According to the vehicle-mounted 4G active integrated gain antenna involved in the invention, the PCB antenna module and the active gain amplification antenna are arranged in an integrated structure, so that the gain is increased, the transmitting and receiving signal strength of the 4G communication network are improved, and the installation of the antenna becomes convenient; the problem of instable signal receiving of the vehicle-mounted 4G communication network is solved; and in addition, the signal receiving and sending of the 4G communication network can be strengthened in the vehicle-mounted environment, so that the vehicle-mounted 4G active integrated gain antenna has bright prospect.

A semiconductor device includes: a plurality of first cell rows extending in a first direction, each first cell row having a first row height; a plurality of second cell rows extending in the first direction, each second cell row having a second row height less than the first row height, wherein the first cell rows are interleaved with the second cell rows; a first cell arranged in a first row of the first cell rows; and at least one second cell arranged in at least one of the second cell rows, wherein the at least one second cell adjoins the first cell in a second direction different from the first direction, and the at least one second cell and the at least one circuit component included in the first cell have the same operational configuration. The embodiment of the invention also relates to an integrated circuit and a system for forming the layout of the integrated circuit.

The present invention proposes a multicast broadcast communication-aware optical network architecture on chip and a communication method, which are used to solve the technical problems of high power consumption and poor scalability of the optical network architecture existing in the prior art, and the communication method The existing technical problems of delay and power consumption are large. In the optical network architecture, the processor modules are divided into clusters arranged in arrays. Each cluster contains an array composed of 2×4 processor modules. Each The processor module is coupled and connected to a first active microring resonator through a coupling port, and the clusters arranged in the array are connected through a serpentine optical waveguide structure and expanded in units of clusters. At the same time, the first active microring resonator and The coupling distance distribution between optical waveguides is set by the power split system principle. In the communication method, the global control unit processes the communication request of the processor module, and sends the obtained control information to the multi-wavelength laser source and the first active microring resonator for network communication configuration.