318results about How to "Reduce transmission overhead" patented technology

A digital television broadcast system with transmission and / or reception of digital television signals for improved mobile reception. The communication layers in the transmit and receive portions of the transmission system can be dynamically modified, e.g., based on usage patterns or current channel characteristics. The transmission system also provides for cross layer control, whereby parameters in various of the communication layers are analyzed to determine appropriate updates to the system configuration.

Disclosed is a method for transmitting a reference signal, in a method for transmitting a Channel State Information-Reference Reference Signal (CSI-RS) for measuring a transmission channel according to each antenna and a data signal in a broadband wireless communication system based on a MIMO scheme through a plurality of antennas.

The present invention discloses parallel mass data transmitting middleware of Internet of things and a working method thereof. The invention includes: a data collection module, for forwarding data collected from different types of sensors to an application interaction module after analysis; the application interaction module, for achieving communication between the parallel mass data transmitting middleware of the Internet of things and an application system of the Internet of things, analyzing a control command of the application system of the Internet of things, transmitting to the data collection module, and further transmitting the analyzed sensor data to a data management module; the data management module, for performing data screening, fusion, conversion on the mass data analyzed by the application interaction module, and finally storing the calculated data into the application system of the Internet of things; and a developing regulation module, for setting out a protocol plug-in regulation, a communication channel plug-in regulation, a service field metadata plug-in regulation, etc. The present invention can meet high concurrency access and management of the large scale sensing apparatus of different application fields, various communication channels and various communication protocols.

The present invention relates to a device and a method for transmitting a reference signal in a multi-antenna system. The present specification discloses a method for receiving a reference signal, the method comprising the steps of: receiving, from a base station, first channel state information (CSI) reference signal (CSI-RS) configuration information including individual parameters necessary when a terminal receives a first CSI-RS from a horizontally adjacent horizontal representative antenna among the all of the transmission antennas of the base station and second CSI-RS configuration information including individual parameters necessary when the terminal receives a second CSI-RS from a vertically adjacent vertical representative antenna; and receiving the respective first and second CSI-RSs from the base station on the basis of the first CSI-RS configuration information and the second CSI-RS configuration information.

A CQI reporting method for a Dual-Cell HSDPA service of a mobile communication system is provided for reducing CQI reporting overhead. A user terminal transmits channel quality indicators for downlink channels in a mobile communication system, measures channel qualities of a first downlink channel and a second downlink channel, compares the channel qualities of the first and second downlink channels with each other, selects at least one channel quality of the first and second downlink channels, and transmits at least one channel quality indicator indicating the at least one channel quality.

The invention discloses a method, a device and a system for addressing a multi-dimensional address. The invention comprises that through establishing a standard of format, grammar and type of the multi-dimensional address data, an effective multi-dimensional address format, which is generated by a first resource, can be output, input, processed and stored by the first and the second resources. The invention also comprises that the multi-dimensional address is defined by a binary digit series identifier, and the length of the binary digit series identifier is an arbitrary digit number from 1 bit to 1536 bit. An information dimension part is included in the multi-dimensional address through the bit segment division; the invention comprises that the object and attribute data is constructed through the bit, the bit segment and the data in the information dimension part; a virtual space structural part is also included in the multi-dimensional address; the invention comprises that the space structure and relation data of the object and attribute data is constructed through the bit, and the bit segment and the data in the virtual space structural part. The invention also comprises that each bit segment is seperated by a symbol; each bit segment carries out an automatic conversion of carry counting system; a leading zero of each bit segment is compressed; and the zero of an all -zerocontinuous bit segment in the multi-dimensional address carries out zero compression.

A Web content fetch and delivery system is disclosed. The system comprises a proxy server configured for receiving requests for content from requesting end user browsers and fetching the content from content provider servers over at least one communication network. The proxy server is programmed for maintaining a log of all content fetched including a time of the fetch and the requesting end user browser, and storing associations between content fetched within a fixed time period by the same requesting end user browser. When subsequent requests for particular content are received by the proxy server, the proxy server will pre-fetch all content associated with that particular requested content.

A power management method, in which creation of deliver opportunities for a wireless station (STA) of a WLAN system is managed using a designated sub-field of the frame control field in a MAC header. In one embodiment, the STA is adapted (i) to use the power management sub-field to communicate its power state to the access point (AP) and (ii) to run a periodicity timer, which starts when the STA has transitioned to the doze state. The STA transitions to the awake state either when it has a data frame available for transmission to the AP or when the periodicity timer runs out. In another embodiment, the AP and STA create deliver opportunities by entering a new mode of operation referred to as interactive traffic power management (ITPM) mode, during which the power management sub-field is ignored and the more data sub-field is used to communicate the power state and manage transitions of the STA between the awake and doze states. Embodiments of the invention improve WLAN system performance when the traffic load is such that data frames become available for transmission both at the STA and AP at relatively regular intervals, which is typically the case for interactive voice-over-WLAN applications.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A terminal in a wireless communication system and method thereof are provided for receiving a channel state information reference signal (CSI-RS). The method includes receiving configuration information on a CSI-RS, the configuration information including information on a transmission bandwidth of the CSI-RS; identifying a transmission bandwidth of a synchronization signal block (SSB); and receiving the SSB and the CSI-RS. When the SSB and the CSI-RS are configured to be allocated in an orthogonal frequency division multiplexing (OFDM symbol), the transmission bandwidth of the SSB and the transmission bandwidth of the CSI-RS are not overlapped.

The correlating network transactions techniques include a method, an apparatus, and / or a computer program product. In some embodiments of these techniques, the method includes receiving, at a first monitor server, a first plurality of network transmissions from a first plurality of communication networks and correlating, at the first monitor server, the first plurality of network transmissions based on information associated with the first plurality of network transmissions to form a first correlated network transaction. The method further includes transmitting the first correlated network transaction from the first monitor server to a second monitor server based on a first correlation flag and correlating, at the second monitor server, the first correlated network transaction with a second network transmission based on at least one of the first correlation flag, information associated with the second network transmission, and information associated with the first correlated network transaction to form a second correlated network transaction.

An apparatus and method for configuring a subframe to support multiple links by grouping multiple hops in a multi-hop relay cellular network are provided. A BS collects information about RSs forming relay links to a destination and groups the relay links according to the collected RS information. The BS allocates different resources to the relay link groups and sends information about the allocated resources to the RSs.

The invention relates to encapsulating partitioned timed media data to be streamed to a client's device, the partitioned timed media data comprising timed samples, each comprising a plurality of subsamples. After having grouped several of the subsamples to form at least one group so that at least part of the subsamples belongs to a group of subsamples, at least two subsamples of the same group are selected from amongst the plurality of subsamples of one of the timed samples and at least one track comprising the selected subsamples is created. Next, for the at least one created track, one sub-track box is created for each of the subsamples selected to create the at least one track, at least one of the created sub-track boxes comprising definitions and properties that are common to the selected sub-samples. Each of the created tracks is independently encapsulated in at least one media file.

A Web content fetch and delivery system is disclosed. The system comprises a proxy server configured for receiving requests for content from requesting end user browsers and fetching the content from content provider servers over at least one communication network. The proxy server is programmed for maintaining a log of all content fetched including a time of the fetch and the requesting end user browser, and storing associations between content fetched within a fixed time period by the same requesting end user browser. When subsequent requests for particular content are received by the proxy server, the proxy server will pre-fetch all content associated with that particular requested content.

The invention provides a heterogeneous database platform data synchronization method. The heterogeneous database platform data synchronization method includes the following steps that a first external data exchange module and a second external data exchange module which correspond to a source database and a target database respectively are installed in a PostgreSQL database, and a first external data exchange module extender, a first external server, a second external data exchange module extender and a second server are built, wherein the source database and the target database are heterogeneous databases; a first external data table and a second external data table which are in mapping relation with the source database and the target database respectively are built, and triggers for capturing data changes are built. The PostgreSQL database and the corresponding data exchange modules serve as media innovatively to achieve data synchronization / copying between external multi-source heterogeneous databases.

The invention provides for an improved method and system of registration and hand-off procedures for a mobile node in a packet-based communication network. The present invention obtains expanded addresses over past systems. The invention can also use serving mobility managers to obtain a care-of address to route data-packets while on the foreign sub-network. The invention improves efficiency and reduces message overhead during registration and hand-off.

The present invention discloses a method, a device and a system for constructing a multidimensional address. The multidimensional address built is an identifier, and a data which can be input to the computational resource and can be processed by the computer program. The multidimensional address is used to identify the resources used or transmitted through network. The data contained in the multidimensional address comprises data used for constructing transaction and attribute, and the resources which can be used or transmitted through network are identified by the multidimensional address, to make the resources have the data of transaction and attribute constructed by the multidimensional address; the procedure comprises that a multidimensional address is automatically generated, the multidimensional address comprises data used for constructing transaction and attribute; all kinds of resources which can be used or transmitted through network are identified by the multidimensional address; the data of the corresponding transaction and attribute can be automatically constructed through the data contained in the multidimensional address and used for constructing transaction and attribute; when identifies resources, the multidimensional address constructs a data of the corresponding transaction and attribute for the resources identified through the data in the multidimensional address.

A digital television broadcast system with transmission and / or reception of digital television signals for improved mobile reception. The communication layers in the transmit and receive portions of the transmission system can be dynamically modified, e.g., based on usage patterns or current channel characteristics. The transmission system also provides for cross layer control, whereby parameters in various of the communication layers are analyzed to determine appropriate updates to the system configuration.

The invention relates to encapsulating partitioned timed media data in a server, the partitioned timed media data comprising timed samples, each timed sample comprising a plurality of subsamples. After having selected at least one subsample from amongst the plurality of subsamples of one of the timed samples, one partition track comprising the selected subsample and one corresponding subsample of each of the other timed samples is created for each selected subsample. Next, at least one dependency box is created, each dependency box being related to a partition track and comprising at least one reference to one or more of the other created partition tracks, the at least one reference representing a decoding order dependency in relation to the one or more of the other partition tracks. Each of the partition tracks is independently encapsulated in at least one media file.

The embodiment of the invention discloses a data transmission method, communication equipment and a communication system. The method comprises: packing the data to a plurality of GTP-U data packets; compressing a IP head, a UDP head and a GTP-U head in some GTP-U data packets in the GTP-U data packets to form the compressed GTP-U data packet; sending the uncompressed GTP-U data packets in the GTP data packets and the compressed GTP-U data packets to a receiving device. The compressed GTP-U data packets at least comprises a compression head which is formed by compressing the IP head, the UDP head and GTP-U head, and the compression head at least comprises a context identification CID, wherein, the CID is same with the CID in the uncompressed GTP-U data packet which comprises the same IP head, the same UDP head and the same GTP-U head. The embodiment of the invention can save the transmission cost and promote the transmission efficiency.

A switch queue predictive protocol (SQPP) includes a packet switching system including: a switch fabric having a cross-point switch, and a plurality of line cards, each coupled to the switch fabric. A cross-point buffer is located at each cross-point of the cross-point switch. The switch fabric also includes a plurality of actual available queue space tables (AAQSTs), each identifying the actual queue space available in a row of the cross-point buffers. Each of the line cards includes an input buffer, an output buffer, and a predicted available queue space table (PAQST) identifying predicted queue space available in a corresponding row of the cross-point buffers. Packet information is transmitted from a source line card to the switch fabric only if available queue space is predicted by the corresponding PAQST. The switch fabric uses the AAQST to update the PAQST after packet information is transmitted to a destination line card.

An apparatus and method for reducing transmission overhead in a broadband wireless communication system are provided. In a transmitter in a broadband wireless communication system where total time resources are divided according to lengths of transmission data and the transmission data are allocated to the divided time resources, a header generator generates a header including data allocation information and control information for a frame to be transmitted, and a traffic channel constructer constructs a traffic channel by combining the header with a burst.

A power management method, in which duration of deliver opportunities for a wireless station (STA) of a WLAN system is managed using a designated sub-field of the frame control field in a MAC header. Either the STA or the access point (AP) can terminate the deliver opportunity, e.g., based on the amount traffic. In one embodiment, the STA is adapted (i) to use the power management sub-field to communicate its power state to the AP and (ii) to run a maximum-wait timer, which starts when the AP is informed that the STA is in the awake state. The STA transitions to the doze state either when it has received a data frame from the AP or when the maximum-wait timer runs out. In another embodiment, the AP and STA manage deliver opportunities by entering a new mode of operation referred to as interactive traffic power management (ITPM) mode. During this mode the power management sub-field is ignored and the more data sub-field is used to communicate the availability of data and to manage transitions of the STA between the awake and doze states. Embodiments of the invention improve WLAN system performance when the traffic load is such that data frames become available for transmission both at the STA and AP at relatively regular intervals, which is typically the case for interactive voice-over-WLAN applications.

The present invention relates to a method for signaling image information and to a decoding method using same. The method for signaling image information according to the present invention comprises: a step of performing inter-prediction for a current picture; and a step of signaling information including the result of said inter-prediction and reference picture information indicating reference pictures usable in said inter prediction, wherein said reference picture information contains pieces of picture order count (POC) information of said usable reference pictures. The POC information of said usable reference pictures in said reference picture information is configured such that POCs for the pictures existing before said current picture in terms of a POC sequence are located at the front, and POCs for the pictures existing after said current picture in terms of a POC sequence are located following the POCs located at the front.

The invention discloses a mobile station positioning method which combines a TDOA (Time Difference of Arrival) algorithm and a TOA (Time of Arrival) / RSSI (Received Signal Strength Indication) algorithm; when the distance difference between the distance obtained by using the TDOA algorithm and the distance obtained by using the TOA / RSSI algorithm is not within a preset range, the reliability of the positioning result obtained from the TDOA algorithm is deemed to be not high, and at the moment, the position of an MS (Mobile Station) can be reestimated according to the distance obtained from the TOA / RSSI algorithm and the angle obtained from the TDOA algorithm, therefore, the positioning precision is improved. The invention also discloses a mobile station positioning system and a positioning calculation unit, both of which can improve the positioning precision.

The invention relates to a data center energy saving method based on a central processing unit (CPU) dynamic frequency modulation technology. The method includes two stages of initialization arrangement and dynamic management of a virtual machine. The method is different from methods in the prior art, a virtual machine arrangement technology used by energy saving of a data center is divided into the two stages of initialization arrangement and dynamic management. The initialization arrangement is applicable to the occasions of operation beginning and regular integral adjustment of the data center. The adopted method achieves the overall effect and the long-term effect due to time permission. The dynamic management is used for local management or moving facing different tasks during data center operation. The adopted method relates to local resource and ensures real-time performance.

The invention discloses a deep neural network multi-path reasoning acceleration method for edge intelligent application, comprising the following steps of: firstly analyzing the classification capability and calculation cost of quitting a branch outlet in advance of each layer of a deep neural network, and selecting an outlet combination with the maximum reasoning benefit to be added to an original model; setting a threshold unit between the exit and a trunk layer, training, and judging whether the task can exit from the current exit or not; compressing intermediate feature data for a task which cannot exit in advance at a terminal layer but must be transmitted to an edge layer; and finally, monitoring and analyzing the network load and the computing capabilities of the terminal and the edge equipment on line in an edge computing environment, cutting a multi-path model by taking the minimized reasoning time delay as a target, and respectively deploying model blocks in a terminal layerand an edge layer to finally form a multi-path reasoning acceleration framework. According to the method, the reasoning flexibility can be improved, the accuracy is ensured, the total reasoning time delay is reduced, and the real-time and high-precision requirements of edge intelligent application are met.

An apparatus and method for configuring a subframe to support multiple links by grouping multiple hops in a multi-hop relay cellular network are provided. A BS collects information about RSs forming relay links to a destination and groups the relay links according to the collected RS information. The BS allocates different resources to the relay link groups and sends information about the allocated resources to the RSs.

The invention relates to a cookbook determining method and device, and a device for determining a cookbook. The cookbook determining method comprises the following steps of: obtaining food material information of food materials to be cooked; according to the food material information, determining a cookbook matched with the food material information; and presenting the cookbook to users. The cookbook determining method is convenient for users to use, and matched with current food materials.

The invention discloses a cluster rendering method based on image decoding and decoding and parallel transmission. According to the invention, a task is divided into independent sub-tasks; calculated quantity between different cluster nodes is effectively balanced; a machine with weak calculation ability also can be added to the cluster system; the expansibility of the system is effectively improved; and the time consumption for image processing can be effectively reduced by a sub-task rendering and parallel transmission mode, and the network transmission expenses are effectively reduced by combining with encoding and decoding of the image. Compared with the traditional method, the FPS (frame per second) disclosed by the invention is higher, a display interface is smoother, and the system performance is effectively improved.