摘要:
Discloses is a gateway, base station, communication network and synchronization method thereof. The method comprises: at time T1, sending from the gateway to the base stations a synchronization request signal; at time T2, receiving by the base stations the synchronization request signal; at time T3, sending from the base stations to the gateway the synchronization response comprising the times T2 and T3; at time T4, receiving by the gateway the synchronization response signals; and calculating for the base stations a mapping relationship between the time system of the gateway and the time system of the base station is calculated based on the times T1, T2, T3 and T4. With the configuration and method proposed in present invention, it can be avoided the problem that accurate synchronization between the gateway and the base stations can not be reached for MBMS data packets in LTE because of path delay and jitter error, so that every base station can specify the same transmitting time for MBMS data packets to guarantee that UE could implement correct RF combining.
摘要:
Systems, methods, devices, and media are described to facilitate the training and employing of a three-class classifier for post-execution search query reformulation. In some embodiments, the classification is trained through a supervised learning process, based on a training set of queries mined from a query log. Query reformulation candidates are determined for each query in the training set, and searches are performed using each reformulation candidate and the un-reformulated training query. The resulting documents lists are analyzed to determine ranking and topic drift features, and to calculate a quality classification. The features and classification for each reformulation candidate are used to train the classifier in an offline mode. In some embodiments, the classifier is employed in an online mode to dynamically perform query reformulation on user-submitted queries.
摘要:
A non-linear element is formed on a flexible substrate by securing the substrate to a rigid carrier, forming the non-linear element, and then separating the flexible substrate from the carrier. The process allows flexible substrates to be processed in a conventional fab intended to process rigid substrates. In a second method, a transistor is formed on a insulating substrate by forming gate electrodes, depositing a dielectric layer, a semiconductor layer and a conductive layer, patterning the conductive layer to form source, drain and pixel electrodes, covering the channel region of the resultant transistor with an etch-resistant material and etching using the etch-resistant material and the conductive layer as a mask, the etching extending substantially through the semiconductor layer between adjacent transistors. The invention also provides a process for forming a diode on a substrate by depositing on the substrate a first conductive layer, and a second patterned conductive layer and a patterned dielectric layer over parts of the first conductive layer, and etching the first conductive layer using the second conductive layer and dielectric layer as an etch mask. Finally, the invention provides a process for driving an impulse-sensitive electro-optic display.
摘要:
A method and apparatus for measuring parameters of a receiver having a mixer for generating an I signal and a Q signal using an input signal, an I channel circuit for processing the I signal, and a Q channel circuit for processing the Q signal. The method includes feeding the receiver a first testing signal before the mixer. The method includes feeding the receiver a second testing signal on the I channel circuit. The method includes feeding the receiver a third testing signal on the Q channel circuit. The method includes measuring I/Q quadrature deviation and I/Q delay imbalance of the receiver using the first, the second, and the third testing signals. This separates the I/Q quadrature deviation and I/Q delay imbalance.
摘要:
A video/image encoding/decoding system based on spatial prediction, in which at least one spatial prediciton mode is used to predict for encoding or decoding. At least one prediction mode acts on at least one pixel in the region to be encoded or decoded to generate the predictive values, using a prediction filter based on one or more reference pixels; furthermore, at least one of the spatial prediction modes has one or a combination of the following characteristics: the prediction filter which is content adaptively calculated through maximizing or minimizing the optimization objective in a specific region is used to generate the predictive values. The information of at least one spatial prediction filter of a specific spatial prediction mode is coded and written into the bit stream. The encoding/decoding system of this disclosure can better capture the dynamics of different video and image contents with improved precision of spatial prediction, and better coding performance is achieved.
摘要:
The present invention provides a method of trimming traffic in an e-MBMS system and BM-SC for implementing the method. The method comprises: determining, by a BM-SC, an ABBR of the multiplexing; allocating, by an MCE, resources based on the determined ABBR; determining, by the BM-SC, whether data amount to be transmitted in a synchronization period exceeds resources allocated in the synchronization period; and dropping, by the BM-SC, tail data packets that cannot be sent in the synchronization period in the multiplexed service if it is determined to exceed. Further, the method also comprises; before the step of determining, voluntarily dropping, by the BM-SC, some data packets in the multiplexed service.
摘要:
A method and device for realizing MBMS control signaling transmission in MBSFN manner are provided in the present invention. Wherein, a base station transmits multimedia broadcast multicast service MBMS control signaling in MBSFN manner, preferably, the base station multiplexes MBMS control signaling and MBMS service data in a same MBSFN subframe, and transmits them according to an adjustment period and/or a repetition period. Then, a mobile station receives the MBMS control signaling at the corresponding MBSFN subframe according to the adjustment period and/or the repetition period. With the solution of the present invention, MBMS control signaling transmission in MBSFN manner is realized.
摘要:
Disposable units in current use for performing PCR are limited by their heat block ramping rates and by the thermal diffusion delay time through the plastic wall as well as by the sample itself. This limitation has been overcome by forming a disposable plastic chip using a simple deformation process wherein one or more plastic sheets are caused, through hydrostatic pressure, to conform to the surface of a suitable mold. After a given disposable chip has been filled with liquid samples, it is brought into close contact with an array of heating blocks that seals each sample within its own chamber, allowing each sample to then be heat treated as desired.
摘要:
An improved system and method for flexible object placement and soft-state indexing of objects in a distributed object store is provided. A distributed object store may be provided by a large number of system nodes operably coupled to a network. A system node provided may include an access module for communicating with a client, an index module for building an index of a replicated data object, a data module for storing a data object on a computer readable medium, and a membership and routing module for detecting the configuration of operable nodes in the distributed system. Upon failure of an index node, the failure may be detected at other nodes, including those nodes that store the replicas of the object. These nodes may then send new index rebuilding requests to a different node that may rebuild the index for servicing any access request to the object.
摘要:
A backplane for use in an electro-optic display comprises a patterned metal foil having a plurality of apertures extending therethrough, coated on at least side with an insulating polymeric material and having a plurality of thin film electronic devices provided on the insulating polymeric material.