Abstract: Method and device for configuring a waveform at a transmitter are provided. The method includes: receiving at least one input signal, each input signal corresponding to a subcarrier spacing setting; performing IDFT pre-processing to each input signal, the IDFT pre-processing including DFT pre-coding or offset modulation; performing IDFT to each input signal which is subjected to the IDFT pre-processing, the IDFT including an IDFT with parameters including resource mapping and a corresponding IDFT size; performing IDFT post-processing to each input signal which is subjected to the IDFT to obtain at least one output signal, the IDFT post-processing including cyclic extension and time-domain windowing; adding the at least one output signal in time domain; and transmitting the added signal through a corresponding antenna port.

Abstract: The present disclosure provides a communication device for wireless communication systems and a communication method for the communication device. The communication device includes: one or more processors, configured to determine information of a reference geographical location used for the communication device, and generate, based on the information of the reference geographical location and a current absolute geographical location of the communication device, information of a relative geographical location of the communication device with respect to the reference geographical location; and a communication unit, configured to transmit the information of the relative geographical location to a predetermined communication object.

Abstract: A device and method for wireless communications. The device includes: an information acquisition unit, configured to acquire channel information about a transmission object and a non-transmission object for wireless communications, wherein the transmission of the transmission object is controlled by the device and transmission of the non-transmission object is not controlled by the device; and an interference reducing unit, configured to reduce interference with the non-transmission object based on the channel information about the transmission object and the non-transmission object.

Abstract: A wireless communication device and a wireless communication method. The wireless communication device participates in wireless communication involving an antenna array, includes: a communication unit, configured to receive a signal including antenna array geometric information about a target communication device from the target communication device of the wireless communication device; and an antenna array geometric information parsing unit, configured to determine an antenna array geometric configuration of the target communication device according to the signal, wherein the antenna array geometric information indicates at least one of a geometric arrangement way of antenna elements in the antenna array, an antenna element interval and an antenna polarization direction.

Abstract: An apparatus and method for use in radio communication, an electronic device, and a method for use with the electronic device. The apparatus includes: a location determination unit, configured to determine a cell subdivision corresponding to the geographic location of a communication device, wherein each cell includes multiple cell subdivisions; and, a pilot determination unit, configured to determine an uplink pilot sequence corresponding to the cell subdivision as the uplink pilot sequence of the communication device.

Abstract: The present disclosure provides an assisting communication device and method, a wireless access node and a method for a wireless access node. The assisting communication device includes: an adjacent access nodes information acquiring unit, configured to detect, based on configuration information from a wireless access node assisted by the assisting communication device, at least one adjacent access node, to acquire working parameters of the adjacent access nodes, the configuration information including an indication about at least one of a detecting type, a detecting object and a detecting result report; and a notification unit, configured to report the acquired working parameters of the adjacent access nodes to the wireless access node assisted by the assisting communication device, to be served as a configuration reference of the wireless access node so as to avoid conflict with the adjacent access nodes.

Abstract: An LED packaging structure comprises a silicon-based body and an LED chip. Discontinuous metal reflective layers are disposed on the obverse surface of the silicon-based body. A metal layer I and a metal layer II that are discontinuous are disposed in a silicon through hole. An LED chip electrode, a metal block/post, the metal reflective layer and the metal layer I are electrically connected. An LED chip electrode, a metal block/post, the metal reflective layer and the metal layer II are electrically connected. A metal layer III is located on a surface of an insulation layer II at the back of the silicon-based body and is located between the metal layer I and the metal layer II.

Abstract: The disclosure involves wireless communication device and method. The device includes a communication unit configured to perform a first feedback operation corresponding to a first feedback configuration and to perform a second feedback operation based on a second feedback configuration. The first and second feedback configurations each include a selection for sub-table of a CQI table, and the second feedback configuration is determined based on result of the first feedback operation.

Abstract: The present disclosure provides a communication device for wireless communication systems and a communication method for the communication device. The communication device includes: one or more processors, configured to determine information of a reference geographical location used for the communication device, and generate, based on the information of the reference geographical location and a current absolute geographical location of the communication device, information of a relative geographical location of the communication device with respect to the reference geographical location; and a communication unit, configured to transmit the information of the relative geographical location to a predetermined communication object.

Abstract: A device and method for use in a Multi-Input Multi-Output MIMO wireless communication system are provided. The device used in the MIMO wireless communication system comprises: a matching unit configured to determine a matching degree of channel estimation information of a communication device to be scheduled with one or more reference vectors included in a reference vector group, wherein the reference vector group depends on an antenna array configuration of the MIMO wireless communication system; and a channel characteristic determining unit configured to determine correlation information of the one or more reference vectors with the matching degree satisfying a predetermined condition as one or more parameters reflecting channel characteristic(s) associated with the communication device.

Abstract: The present invention provides a method for transmitting signals in a transmitter of a filter band multi-carrier system, comprising steps of: modulating data to obtain modulated data; obtaining a to-be-transmitted signal by framing a pilot preamble symbol with the modulated data; transmitting the to-be-transmitted signal; the pilot preamble symbol consisting of preamble elements, wherein the pilot preamble symbol corresponding to each transmit antenna occupies one filter band multi-carrier modulation symbol. The present invention further provides an apparatus for implementing the method, and a method and apparatus for channel estimation corresponding to the method for transmitting signals.

Abstract: The present disclosure provides a management apparatus and a method for wireless communication as well as an apparatus and a method for wireless communication. The management apparatus includes: a determining module, configured to select a communication unit satisfying a predetermined condition from among a communication unit cluster managed by the management apparatus, and determine interference information or load information of at least part of resource blocks corresponding to the communication unit.

Abstract: A device and method for managing spectrum resources and a wireless communication device and method are provided. The method for managing spectrum resources of a wireless communication system according to the disclosure includes: acquiring resource utilization parameter information of a communication device to be managed, the resource utilization parameter information including the number of antennas; and determining spectrum resource allocation to the communication device based on the resource utilization parameter information. The method for managing spectrum resources enriches contents of signaling interaction between a communication device and a device for managing spectrum resources in a wireless communication system, thereby making it possible to sufficiently utilize a possible spatial freedom degree of a communication device in a multi-antenna system, and to efficiently reduce interference between communication devices or communication systems.

Abstract: Methods and apparatuses for information feedback and precoding have been provided. A method for processing communication data at a user equipment in a wireless communication system may comprise: deriving a spatial correlation matrix R of multiple transmit antennas of a base station based on an obtained downlink channel transmission matrix H; transforming a precoding codebook F according to the spatial correlation matrix R; selecting a precoding matrix Fs based on the transformed precoding codebook; and feeding back information about the spatial correlation matrix R and information about the selected precoding matrix Fs to the base station.

Abstract: The present invention provides a transformation apparatus for transforming a long-term wideband channel property feedback. The transformation apparatus comprises: a first transformation unit for constructing an estimation Restimation of a long-term wideband transmit spatial correlation matrix with a long-term wideband beamforming matrix u1 as fed back from a receiver, wherein Restimation=u1u1H, wherein H indicates the conjugate transposition of a matrix; and/or a second transformation unit for directly obtaining a long-term wideband beamforming matrix or a precoding matrix by using a long-term wideband transmit spatial correlation matrix as fed back from a receiver. According to the technical solution of the present invention, a corresponding transformation method and apparatus is also provided.

Abstract: Provided is a method for packaging a low-k chip, comprising: attaching onto a carrier wafer a layer of temporary strippable film; arranging inversely a chip (2-1) onto the carrier wafer via the temporary strippable film; attaching thin film layer I (2-4) onto the carrier wafer for packaging; bonding a support wafer (2-5) onto the thin film layer I (2-4) and solidifying; forming a reconstructed wafer consisting of the chip (2-1), thin film layer I (2-4), and the support wafer; detaching the reconstructed wafer from the carrier wafer; completing a rewired metal wiring (2-6) on thin film layer I (2-4); forming a metal column (2-7) at an end of the rewired metal wiring (2-6); attaching thin film layer II (2-8) onto a surface of the metal column (2-7), packaging, and solidifying; coating a metal layer (2-9) on the top of the metal column (2-7), forming BGA solder balls (2-10) on the metal layer (2-9) by means of printing or ball planting; and finally slicing into individual BGA packages the reconstructed wafer hav

Abstract: The present invention provides a correlation-matrix feedback method and system for an antenna array. The method comprises steps of: selecting, at a receiving end, a codeword from a predetermined correlation-matrix codebook comprising a plurality of codewords according to a predetermined criterion to represent a correlation matrix to be fed back (300); and feeding back an index of the selected codeword in the predetermined correlation-matrix codebook to a transmitting end (302); wherein each codeword is a codeword matrix for approximating a correlation matrix of an antenna array at the transmitting end. According to the present invention, it is possible to take good advantage of the characteristics of closely-spaced ULA antennas and spatial correlation thereof, design a corresponding codebook for quantization and feedback, and reduce feedback overhead and computational complexity so as to improve the system performance of a spatial correlation aided system, such as a MIMO system.

Abstract: In order to improve the performance of the precoding scheme for closely-spaced cross-polarized CLA antennas, the invention proposes a new precoding codebook and precoding matrix. The invention also proposes a method for determining precoding matrix based on the new precoding codebook, and corresponding method and device for communicating by using this precoding matrix. The precoding codebook and matrix proposed in the invention has better performance.

Abstract: The present invention provides a method for transmitting signals in a transmitter of a filter band multi-carrier system, comprising steps of: modulating data to obtain modulated data; obtaining a to-be-transmitted signal by framing a pilot preamble symbol with the modulated data; transmitting the to-be-transmitted signal; the pilot preamble symbol consisting of preamble elements, wherein the pilot preamble symbol corresponding to each transmit antenna occupies one filter band multi-carrier modulation symbol. The present invention further provides an apparatus for implementing the method, and a method and apparatus for channel estimation corresponding to the method for transmitting signals.

Abstract: The present invention provides a precoding method for a cross-polarized antenna array, the cross-polarized antenna array comprising a first group of coplanar polarized antennas and a second group of coplanar polarized antennas, the method comprising the following steps: generating, for at least one layer of data stream, a feedback codebook comprising a plurality of codewords; receiving a selection of the codeword in the feedback codebook; determining a corresponding codeword from the feedback codebook according to the received selection; generating a precoding matrix based on the determined codeword to precode the at least one layer of data stream; wherein each codeword in the feedback codebook comprises a first coefficient portion corresponding to a first group of coplanar polarized antennas and a second coefficient portion corresponding to the second group of coplanar polarized antennas, and there is a complex scaling relation between the coefficients in the first coefficient portion and the second coeffici