Abstract: Embodiments of the present disclosure provide methods and apparatus for performing Transmission Time Interval (TTI) bundling in a Time Division Duplex (TDD) system. One of the methods may comprise receiving a first TTI bundling packet containing a first part of a redundancy version of a transport block on a special subframe and a second TTI bundling packet containing a second part of the redundancy version on another special subframe; and combining the first TTI bundling packet and the second TTI bundling packet to obtain the redundancy version of the transport block in a complete form. With embodiments of the present disclosure, more configurations may be used in TTI bundling for enhancing coverage in the TDD system, and it may avoid additional interferences to legacy UEs.

Abstract: The present disclosure provides a method and an apparatus of resource sharing for D2D and cellular communications. The method may comprise: determining a cellular user set containing potential cellular users that may share resources with a D2D pair; and determining transmit power of the D2D pair on a frequency band of at least one cellular user in the cellular user set and transmit power of the at least one cellular user through maximizing throughput of the D2D pair with a quality of service (QoS) constraint and a power budget constraint of each of the potential cellular users and a transmit power constraint of the D2D pair. With embodiments of the present disclosure, it may provide a non-orthogonal resource sharing solution in which a D2D pair can reuse resources of the cellular users as more as possible while the QoS of all the cellular users are guaranteed, whereby the performance of the D2D user may be improved greatly.

Abstract: The invention provides a wireless communication system and a beamforming training method for a wireless communication system.

Abstract: The present disclosure provides a method and an apparatus for allocating resources for device-to-device communication. The method may comprise selecting, from device-to-device pairs that need to be allocated resources and are sorted based on channel condition in descending order, a device-to-device pair ranking first in the device-to-device pairs; determining system sum rates for channels if the device-to-device pair shares resources with respective potential cellular users; and allocating resources assigned to a cellular user to the device-to-device pair based on the determined system sum rates. With embodiments of the present disclosure, the performance of the D2D communication may be further improved and it may achieve a system performance optimization.

Abstract: A server interconnection system includes three switches each having n downlink ports and an uplink port, wherein n is an integer equal to or larger than 2; and m servers each having at least two network interface cards respectively connected to downlink ports of different switches, wherein m=3p/2, p is an even number equal to or larger than 2 but equal to or less than n, wherein every three servers form a group. A first server connects to a downlink port of a first switch and a downlink port of a second switch via two network interface cards. A second server connects to a downlink port of the first switch and a downlink port of a third switch via two network interface cards. A third server connects to a downlink port of the second switch and a downlink port of the third switch via two network interface cards.

Abstract: The present disclosure provides an addressing method, an addressing apparatus, a fabric manager, a switch, and a data routing method for data center networks. The addressing apparatus includes a tree creating unit for, sequentially with each of switches as a root, creating a tree containing all hosts by means of network topology discovery function, to obtain a plurality of trees; a tree selecting unit for selecting a tree having a minimum height among the created plurality of trees; and an address assigning unit for assigning addresses to each of switches and each of hosts in a network with respect to each selected tree having a minimum height. The present disclosure is adaptable to various topologies employed by the data center. The present disclosure can achieve aggregation of locator addresses so that a forwarding table can be shortened, and can achieve load balance of the network.

Abstract: Embodiments of the invention disclose a method and apparatus for detecting the statuses of energy source consumption devices, relate to the field of energy source auditing and are intended to improve the efficiency and accuracy of detecting the statuses of the energy source consumption devices.

Abstract: The present invention relates to method and apparatus for channel direction information feedback in a heterogeneous system. According to an embodiment of the present invention, a method for channel direction information feedback in a heterogeneous system comprises: determining, for a user equipment, total feedback bits for quantization of channel direction information, based on a trade off between accuracy of channel direction information quantization and reliability of uplink feedback transmission on a predetermined uplink feedback resource, wherein coordinated multi-point transmission between a local base station and a cross base station is performed for the user equipment in the heterogeneous system; and notifying said user equipment of said total feedback bits for quantization of channel direction information that will be conveyed on said predetermined uplink feedback resource.

Abstract: A device for constructing a hierarchical destination prediction mode includes an extracting unit configured to receive a user's historical location data and extract input data and output data from the user's historical location data. The input data includes a leaving location and associated time for the user and the output data includes an arriving location for the user. A determining unit is configured to determine the user's possible activities of each location and their original probabilities based on the input data and the output data, and to adjust the original activity probabilities based on the user's arriving patterns and leaving patterns. A prediction model obtaining unit is configured to obtain the hierarchical destination prediction model based on the input data and the adjusted probabilities. A high layer of the hierarchical destination prediction model represents activities and their transitions, and a low layer of the model represents locations of the activities.

Abstract: A method and a device for objects counting in image processing includes acquiring the depth image of any one frame; detecting objects according to the depth image; associating the identical object in different frames to form a trajectory; and determining the number of objects according to the number of trajectories. The devices include an acquisition module for acquiring the depth image of any one frame; a detection module for detecting objects according to the depth image; an association module for associating the identical object in different frames to form a trajectory; a determining module for determining the number of objects according to the number of trajectories. The objects are detected according to the depth image. The identical object in different frames is associated to form a trajectory and the number of objects is determined according to the number of trajectories.

Abstract: Embodiments of the disclosure provide methods and apparatuses for scheduling a UE in a communication system comprising D2D communication and cellular communication. The cellular communication is performed between a base station (BS) and at least one UE, and the D2D communication is performed between a D2D transmitter and a D2D receiver. According to the method of the present invention, an outage margin of the D2D communication is obtained, wherein the outage margin indicates the margin that the communication from the D2D transmitter to the D2D receiver is in outage; and a target transmission power of the at least one UE is determined based on the outage margin to perform cellular scheduling.

Abstract: Embodiments of the disclosure provide methods and apparatuses for performing D2D communication in a communication system. The communication system may at least comprise a base station (BS), a D2D transmitter and a D2D receiver. The D2D transmitter transmits D2D data to the D2D receiver in a D2D communication. According to the method of the present invention, D2D data may be received from the D2D transmitter; and the received D2D data may be transmitted to the D2D receiver in response to receiving a negative message from the D2D receiver, wherein the negative message indicates that the D2D receiver fails to receive the D2D data from the D2D transmitter.

Abstract: The present invention relates to method and apparatus for scheduling downlink transmission. According to an embodiment of the present invention, a method for scheduling downlink transmission in a wireless communication system is provided. The method comprises: scheduling, in a channel measurement sub-frame, user equipments in a cell according to feedback information that was most recently received from the user equipments, wherein in the channel measurement sub-frame, the user equipments calculate feedback information to be reported; and scheduling, in response to receipt of the feedback information, the user equipments based on a result of scheduling corresponding to the channel measurement sub-frame. According to an embodiment of the present invention, there is also provided a scheduling apparatus, base station device and corresponding computer program product.

Abstract: Embodiments of the disclosure provide a method and apparatus for obtaining a CQI in a communication system, wherein the communication system comprises a UE, a CoMP measurement set including more than one BS/point, and one or more outside BSs/points which is outside the CoMP measurement set, and wherein the UE is served by a serving BS/point in the CoMP measurement set and interfered by at least one interfering BS/point in the CoMP measurement set and the one or more outside BSs/points. In the method according to embodiments of the present invention, a first interference from at least one outside BS/point which is outside the CoMP measurement set to the UE is estimated; a second interference from at least one interfering BS/point in the CoMP measurement set to the UE is estimated; and a target CQI based on the first interference and the second interference is obtained.

Abstract: Embodiments of the invention relate to methods and apparatus for link adaptation in a preceded MIMO system. According to one embodiment, there is provided a method for link adaptation in a precoded MIMO system. The method comprises: receiving first channel quality information ?CQI; with respect to at least one layer r in a plurality of layers in a link; obtaining a Hybrid Automatic Repeat Request (HARQ) scaling factor ?r that is associated with a HARQ feedback; and interpreting the first channel quality information ?CQI into second channel quality information {circumflex over (?)}r based on at least the HARQ scaling factor ?r, wherein the second channel quality information {circumflex over (?)}r is for adapting the at least one layer r in the plurality of layers. According to another embodiment, there is provided an apparatus for link adaptation in a precoded MIMO system.

Abstract: Methods and apparatuses for interference control have been disclosed. A method for a base station in a wireless communication system, comprising: obtaining a system setting of the wireless communication system; selecting a transmission mode based at least in part on the system setting, wherein the transmission mode is one of an Interference Cancellation IC transmission mode and a Beamforming BF transmission mode; and configuring the selected transmission mode. The total system throughput may be maximized by dynamically switching the transmission mode between IC and BF at the base station. Further, the proposed switching mechanism may be applied to various communication networks where downlink interference may occur.

Abstract: Embodiments of the disclosure provide methods and apparatuses for three-dimensional beamforming. The method may comprise: mapping vertical virtual antenna ports to physical antenna ports based on vertical reference signals to obtain mapped vertical reference signals; transmitting the mapped vertical reference signals to a user equipment; receiving a tilting indicator from the user equipment, wherein the tilting indicator is obtained based on the mapped vertical reference signals at the user equipment; determining a tilting vector based on the received tilting indicator, wherein the tilting vector indicates adjustment for traffic data in antenna vertical tilting; and adjusting traffic data with the tilting vector.

Abstract: An apparatus and a method for Low-density parity-check (LDPC) decoding are provided. The apparatus for LDPC decoding comprises a post effective noise variance estimation unit for estimating a post effective noise variance based on a preamble in a received signal, an LLR calculation unit for calculating an LLR based on the estimated post effective noise variance, and a decoding unit for performing LDPC decoding based on the calculated LLR. The post effective noise variance estimation unit comprises a channel frequency response estimation unit for estimating a channel frequency response based on the preamble in the received signal, a noise variance estimation unit for estimating a noise variance based on the preamble in the received signal, and a post effective noise variance calculation unit for calculating the post effective noise variance based on the channel frequency response and the noise variance.

Abstract: A method and device for extracting color features, relating to the field of image processing includes converting an original image into sub-images corresponding to channels in a color space, dividing the sub-images into a plurality of cells with identical size, and calculating the color histograms of each of the plurality of cells. A cell and neighboring cells thereof are defined as the effective scope of the cell, and a feature vector of the cell is determined according to a degree of similarity of the color histograms of every two neighboring cells in the effective scope. The feature vectors of the cells in the sub-images are concatenated to obtain feature vectors of the sub-images, and a feature vector of the original image is obtained according to the feature vectors of the sub-images.

Abstract: A mobility pattern mining device includes: a data collecting unit configured to collect a user's historical data; a stay point obtaining unit configured to obtain stay points of the user from the historical data; an extracting unit configured to obtain a semantic tree for a certain topic and extract topic related stay points from the stay points of the user by using the semantic tree for the certain topic; a determining unit configured to determine a candidate mobility pattern of the user based on the topic related stay points; and a selecting unit configured to select a frequent mobility pattern which best matches the candidate mobility pattern of the user from a frequent mobility pattern database related to the certain topic, wherein the database is set in advance based on historical data for a plurality of users to obtain mobility patterns about topics for users.