46results about How to "Support transmission" patented technology

The invention discloses a method for distributing dynamic frame structures of a TDD system. The method comprises the following steps: an evolution base station (eNB) sends an RRC (Radio Resource Control) command of entering into a dynamic configuration frame structure state to UE (User Equipment), and sends the frame structure configuration information in PDCCH (Physical Downlink Control Channel); and after receiving the command, the UE detects the frame structure configuration information in PDCCH, and configures a frame structure adopted in the next configuration period according to the detected configuration information. Meanwhile, the invention further discloses a system distributing the dynamic frame structures of the TDD system as well as the eNB. Due to the adoption of the scheme, the variation period of the frame structures of the TDD system can be shortened, and the unsymmetrical transmission is supported better.

This invention discloses one multi-media appendix send method and system, which comprises the following steps: a, send part receives multi-media mail orders and sends appendix mail label and network address to receive part and storing on self position; b, receive part establishes connection according to mail network address and send one and sends appendix send requires with multi-media appendix; c, send part finds self stored appendix and sends it to receive part for an end.

The invention relates to a communication circuit and method of an electronic detonator. The communication circuit comprises a communication interface, a filtering circuit, a first switch circuit, a second switch circuit, a single-chip microcomputer, a rectifying circuit and a voltage stabilizing circuit; an exploder modulates carrier waves through a modulation signal; a carrier wave signal is generated and sent to the communication circuit of the electronic detonator through a bus; the communication circuit demodulates the carrier wave signal and performs treatment; then a signal is sent to the exploder; and the communication process is completed. According to the communication circuit and method of the electronic detonator, communication is performed by means of a power line network, rewiring is not needed, the beneficial effects that the occupied space is small and the constructing and running cost is low are achieved, and transmission of a high-frequency signal and a lower-frequency signal is supported at the same time.

The present invention provides a method and a device for controlling a time-division duplex repeater, and the time-division duplex repeater. The method comprises the steps of determining frequency bands synchronized with a base station, and uplink time slots and downlink time slots corresponding to the frequency bands; selecting one frequency band best in signal quality out of all frequency bands synchronized with the base station; receiving the signals of corresponding time slots during the uplink and downlink time slots; processing the signals within a channel corresponding to the above selected frequency band best in signal quality; and sending out the processed signals. According to the technical scheme of the invention, signals are transmitted within the selected frequency band best in signal quality through the hand-over selection among a plurality of frequency bands. Compared with the prior art, the defect that only one frequency band among the plurality of frequency bands is available in the prior art can be overcome.

The invention discloses a communication control method for achieving the communication interconnection of equipment, and a communication protocol that is followed between the equipment employs a question-answer mechanism. After a transmitting side transmits one data packet each time, a receiving side has to transmit one answer packet, and transmits an answer result to the transmitting side; the transmitting side determines the transmission of a next transmitted packet according to the answer result. The control method implemented based on the built communication protocol can support the transmission of various types of data, and can facilitate the expanding of fields and transmission of contents. The control method achieves the compatibility between new and old equipment and also achievesthe data transmission between different equipment.

The invention relates to the technical field of data exchange, in particular to a device for data exchange among multiple systems on the basis of rule customization. The device for data exchange among the systems on the basis of rule customization comprises an application server and a network support platform. The application server and the network support platform are connected with a system and application software service platform through a network. The system and application software service platform is connected with a data exchange center through the network, and the data exchange center is provided with an external data interface and connected with an enterprise application integrated platform through the network. A plurality of adapters are arranged in the data exchange center, each adapter is connected with a corresponding database through data exchange application service to meet the requirement for data exchange and processing among the systems. A rule engine used for analysis and processing according to an exchange rule is provided, and a method and system used for corresponding data conversion, processing, synchronization and interaction according to the set exchange rule are obtained.

Provided are a method of supporting Single Cell Point-to-Multi-point (SC-PTM) for a Bandwidth reduced Low complexity / Coverage Enhancement (BL / CE) terminal or an NB-IoT terminal, which are for a Machine Type Communication (MTC) application defined in a 3GPP LTE / LTE-A system. The method may include receiving configuration information relating to an NPDCCH search space from a base station wherein theNPDCCH search space is separately configured to receive scheduling control information for the multicasting control channel; receiving the scheduling control information for the multicasting controlchannel through the NPDCCH search space configured based on the configuration information; and receiving the multicasting control channel based on the scheduling control information, wherein the configuration information is received through higher layer signaling.

The embodiment of the invention provides a data transmission method, device and terminal. The data transmission method comprises that: a first terminal generates first application data of a first application, and the first application data are packaged by utilizing an expansion protocol so that the first application data after packaging are obtained; the first terminal sends the first application data after packaging to multiple target terminals; and the first terminal receives feedback information of the first target terminal corresponding to the first application data in the multiple target terminals, and a situation that the expansion protocol is supported by the first target terminal is confirmed according to the feedback information. Transmission of the application data by utilizing the expansion protocol is supported by the embodiment of the invention.

The invention provides a method for designing optical fiber network structure, and a structure capable of flexible extension. The method is characterized in that a first-level network structure is taken as a center; by connecting every edge node of the center with a three-port basic network unit with internal intercommunication function, the network structure is extended outwards to realize the multiplication of the number of the network edge nodes and the interconnection-intercommunication among all the edge nodes and to form a second-level network structure; and by analogy, every edge node of a formed i-level network continues to be connected with one basic network having three ports, so that the outward radiation-extension of the network structure and the multiplication of the number of the network edge nodes are realized so as to form an i+1 level network structure till the number of the network edge nodes of a formed M-level network structure meets design requirements. The network structure is characterized in reliability, high flexibility and extensibility, and has the advantages of low complexity, low cost and realization easiness.

The invention discloses a method for encoding and modulating a logical frame signaling channel in an NGB-W system. The method comprises the following steps of: adding CRC (cyclic redundancy code) bits to logical frame signaling and dividing the logical frame signaling into blocks; scrambling the logical frame signaling block; mapping the scrambled logical frame signaling block into BCH (Broadcast Channel) code information bits; performing forward error correction coding to the BCH code information bits; generating the coding block of the logical frame signaling block; generating logical frame signaling coding bit sequences; generating bit interleaving blocks; performing constellation mapping to the bit interleaving blocks to generate BICM (Bit Interleaved Coded Modulation) blocks. According to the method, the logical frame signaling with any length can be transmitted, so that the different-length logical frame signaling is basically uniform in transmission reliability; four levels of transmission reliability and transmission efficiency are selected under each modulating method.

The invention relates to a communication circuit and method of an electronic detonator. The communication circuit comprises a communication interface, a filtering circuit, a first switch circuit, a second switch circuit, a single-chip microcomputer, a rectifying circuit and a voltage stabilizing circuit; an exploder modulates carrier waves through a modulation signal; a carrier wave signal is generated and sent to the communication circuit of the electronic detonator through a bus; the communication circuit demodulates the carrier wave signal and performs treatment; then a signal is sent to the exploder; and the communication process is completed. According to the communication circuit and method of the electronic detonator, communication is performed by means of a power line network, rewiring is not needed, the beneficial effects that the occupied space is small and the constructing and running cost is low are achieved, and transmission of a high-frequency signal and a lower-frequency signal is supported at the same time.

The invention relates to a system for supporting multithread streaming media dynamic transmission. The system comprise a multithread streaming media dynamic sending module, a multithread streaming media dynamic transmission module and a multithread streaming media dynamic receiving module, wherein the multithread streaming media dynamic sending module can be used for carrying out transmission configuration on sent media in a transmission process, selecting a media channel for sending, and sending each media channel for sending, which is preprocessed and encoded according to an encoding standard in the transmission configuration; the multithread streaming media dynamic transmission module is used for obtaining and storing the dynamically updated transmission configuration information, and storing and transmitting multithread streaming media data simultaneously in real time; and the multithread streaming media dynamic receiving module is used for obtaining a subset of the multithread streaming media data sent by a transmission configuration information obtaining and sending module, and then playing the multithread streaming media data after decoding, pre-treating and synchronizing the multithread streaming media data. Compared with the prior art, the system provided by the invention has the advantages of supporting multithread streaming media transmission, carrying out the dynamic transmission configuration in the transmission process, and the like.

This disclosure proposes a method for supporting Single Cell Point-to-Multipoint (SC-PTM) for Bandwidth Reduced Low Complexity / Coverage Enhancement (BL / CE) terminals or NB‑IoT terminals, which is used in 3GPP LTE / Machine Type Communication (MTC) applications defined in LTE‑A systems. In particular, the present disclosure provides a method for allocating resources for transmitting PDSCH of SC-MTCH as multicast data information for a single-cell group terminal.

The invention discloses a method, a device and a system for transmitting and receiving service data. A transmitting terminal encapsulates service data to be transmitted into GEM frames in a passive optical network encapsulating mode and transmit the encapsulated GEM frames to optical fibers for transmission, wherein the GEM frames comprise service type identifiers which indicate the types of service data; accordingly, a receiving terminal receives the GEM frames and decapsulates the GEM frames to obtain the service data and the service type identifiers of the service data; and the receiving terminal identifies the service types of the service data according to the service type identifiers and carries out service processing corresponding to the service types. The method for encapsulating the service data comprises the steps: allocating the service data to be transmitted into a payload field; adding an internal field carrying port identifiers on the basis of the payload field; and addingexternal GEM frame headers carrying port identifiers on the basis of the internal field, thus the port identifiers carried by the external GEM frame headers and the port identifiers carried by the internal field together identify the port information of the service data.

The invention discloses a communication control method for realizing communication interconnection between devices. The communication protocol followed by the devices adopts a question-and-answer mechanism. After each data packet is sent by the sender, the receiver must send a response packet, and the response result Send it back to the sender, and the sender decides to send the next sending packet according to the response result. The control method realized based on the established communication protocol of the present invention can firstly support the transmission of various data types, and can conveniently expand fields and transmission content. The control method realizes compatibility between new and old devices, and also realizes data transmission between different devices.

The invention discloses a method and equipment for supporting over-long transmission distance of a distance-enhanced Ethernet device. The method includes the following steps: electrifying an LRE (Long Reach Ethernet) device; conducting link negotiation with a link end-to-end device by using an LDS (Local Distribution Service) auto-negotiation mode; if discovering that the LDS auto-negotiation fails, conducting link negotiation with the link end-to-end device by using a preset work mode supporting over-long transmission distance; and if not, communicating with the end-to-end device by using the work mode supporting over-long transmission distance. With the invention, the LRE device can support the over-long distance transmission.

The invention discloses a method for realizing data links of unmanned aerial vehicle for multilevel orthogonal coding spectrum spread. The method comprises the following: step 1, utilizing a spectrum-spreading code generator to obtain a group of spectrum-spreading codes with good autocorrelation and orthogonality; step 2, performing serial-to-parallel conversion on binary baseband digital information to turn the information into parallel data; step 3, choosing one of m paths of parallel data in N paths of spectrum-spreading sequences generated by the spectrum-spreading code generator and forming N-level spectrum-spreading information; and step 4, performing digital modulation on the obtained N-level spectrum-spreading information, modulating the information into radio frequency and emitting the radio frequency out. The method enables each spectrum-spreading sequence to transmit a plurality of information bits, thereby improving transmission efficiency. Under the same system bandwidth,multilevel spectrum spread has stronger anti-interference ability than the prior direct sequence spectrum spread. Multilevel spectrum spread can realize the spectrum spread with variable rate or variable processing gain under the condition that chip rate is unchanged, thereby helping to improve the anti-interference ability of systems and supporting the transmission of integrated services.