Abstract: Provided is a data processing method and apparatus. The method includes: performing an inverse fast Fourier transform (IFFT) on frequency-domain data of L consecutive symbols to obtain time-domain data of the L consecutive symbols, wherein the frequency-domain data of the L consecutive symbols have a subcarrier spacing of fsc, and L?2; and modulating the time-domain data of the L consecutive symbols with a preset function, where the modulated time-domain data of the L consecutive symbols have a symbol interval of 1/f1, and f1<fsc; where a length of a value interval of an independent variable of the preset function is N/f1, and N is a real number greater than or equal to 1.

Abstract: Provided are a system message transmission method and device, which relate to the field of wireless communications. According to the system message transmission method, a system message is transmitted at a preset resource location; and a physical downlink channel is transmitted according to the system message. The system message may include at least one of: frequency domain location information of a system, configuration information of a physical shared channel carrying a system message, configuration information of terminal access, available resource information of the physical downlink channel, and radio frame information.

Abstract: Provided are a method for realizing device-to-device communication relay selection, a network control node and a user equipment. The method includes: a network control node receiving relay-related information sent by user equipment and determining a relay node; and the network control node sending device-to-device communication relay configuration information to the determined relay node. In the technical solution, by sending relay-related information in a network to perform selection or configuration of a relay node, a corresponding solution is provided for a scenario for which relay selection is not provided, and thereby the selection of the relay node is realized.

Abstract: An in-band pseudolite wireless positioning method, system and device are provided. The system has a base station, a pseudolite and a terminal. The base station transmits identifier information to the pseudolite after correcting a transmission clock of the pseudolite and transmits a pseudolite array and positioning correction information to the terminal. The pseudolite generates a random positioning signal sequence according to the identifier information and transmits a positioning signal according to the transmission clock and the random positioning signal sequence. The terminal generates a random positioning signal sequence of the pseudolite according to the pseudolite array and the positioning correction information.

Abstract: The present document discloses a wireless synchronization method and a wireless synchronization system. The method includes: determining a synchronization path between a first node and a second node (S110); and using the synchronization path to synchronize the first node and the second node (S120), herein the synchronization path is composed of one or more segments of visible paths, and the visible path is a direct path which connects two nodes visible to each other. The present document further discloses a computer storage medium.

Abstract: A downlink pilot transmitting method and device, a downlink pilot detecting method and device, a terminal and an evolved Node B are provided. In the transmitting method, the evolved Node B divides resources for transmitting a downlink Channel State Information-Reference Signal (CSI-RS) into multiple resource groups, wherein the resources include any one or any combination of subframes, ports and Physical Resource Block (PRB) pairs; the evolved Node B respectively configures a pilot transmitting parameter of each resource group and/or respectively reaches an agreement with the terminal on the a pilot transmitting parameter of each resource group; and the evolved Node B respectively transmits the downlink CSI-RS in the multiple resource groups according to the pilot transmitting parameter configured and/or as agreed with the terminal for each resource group.

Abstract: Provided is a data processing method and apparatus. The method includes: performing an inverse fast Fourier transform (IFFT) on frequency-domain data of L consecutive symbols to obtain time-domain data of the L consecutive symbols, wherein the frequency-domain data of the L consecutive symbols have a subcarrier spacing of fsc, and L?2; and modulating the time-domain data of the L consecutive symbols with a preset function, where the modulated time-domain data of the L consecutive symbols have a symbol interval of 1/f1, and f1<fsc; where a length of a value interval of an independent variable of the preset function is N/f1, and N is a real number greater than or equal to 1.

Abstract: Provided is a data processing method and apparatus. The method includes: performing an inverse fast Fourier transform (IFFT) on data and processing the data with a preset function. The preset function is the product of a first function and a second function. The first function is a function in a time domain obtained by performing a Fourier transform on a root-raised cosine function in a frequency domain. The second function is in the time domain.

Abstract: Provided are a pilot signal transmission method and apparatus, and a transmitting terminal. The method includes: setting a first pilot signal, a second pilot signal, and a third pilot signal on a same subcarrier; and transmitting the first pilot signal, the second pilot signal, and the third pilot signal respectively on three continuous symbols on the same subcarrier. The first pilot signal, the second pilot signal, and the third pilot signal are all nonzero data, a phase difference between the first pilot signal and the second pilot signal is 90 degrees, a phase difference between the third pilot signal and the second pilot signal is 90 degrees, and a phase difference between the first pilot signal and the third pilot signal is 180 degrees.

Abstract: Provided are a virtual anchor point-based wireless positioning method and device, and terminal.

Abstract: Disclosed in the embodiments of the present application are a data modulating and demodulating method, a data transmission method and node for multi-carrier system. The data modulating method including: selecting, by a transmitting node, corresponding waveform functions based on values of a first parameter, wherein the first parameter includes K values corresponding to K different waveform functions, respectively, and K is an integer greater than 1; and performing, by the transmitting node, using the selected waveform functions, modulation on time domain data sequences processed by Inverse Fast Fourier Transform (IFFT) to obtain a modulated data sequence. The first parameter may be configured by a base station for a UE. Also provided by the embodiments of the present application are a corresponding demodulation method and data transmission method and node.

Abstract: Data modulation for use in a multi-carrier system, a demodulation method, a frame generation method, and a node. A transmitter node performs an inverse fast Fourier transform (IFFT) on successive L symbols of frequency domain data, wherein an inverse of an adjacent subcarrier interval of the frequency domain data is T0, and L?2. The transmitter node modulates, using a designated wave function, the successive L symbols of time domain data generated after the IFFT process, wherein an adjacent symbol interval of the L symbols after the modulation is T1, and T1>T0. A variable interval length of the designated wave function is N×T1, where N is a real number exceeding or equal to 2 or 3. The application also provides the corresponding demodulation method, frame generation method, and node. The application can better inhibit out-of-band power leakage, and maintain compatibility to LTE. Furthermore, an increased demodulation performance is provided at a receiver end.

Abstract: Disclosed are an uplink access method, device, and terminal and a base station. The method comprises: a terminal requests, according to obtained uplink access configuration information, uplink access to one or more first base stations; the terminal receives uplink access related information responded from the one or more first base stations, wherein the uplink access related information comprises downlink synchronization related information for performing downlink synchronization; and the terminal selects, according to the obtained uplink access related information, a first base station to perform uplink access. The technical solution of the present invention enables a terminal to accomplish downlink synchronization with one or more selected first base stations while accomplishing uplink access, and to obtain some system messages of the first base stations to which the terminal is connected.

Abstract: A method, device and a computer storage medium for wireless connection are provided. The method includes that: a main Transmission Point (TP) sends a connection indication to User Equipment (UE), the connection indication being used to indicate the UE to establish a connection with at least one sub TP on the premise of keeping a current connection with the main TP.

Abstract: The present invention embodiment discloses an ultra-large bandwidth data transmission method, device and computer storage medium, said method comprising: a data transmission device sending data in accordance with a sub-frame level approach at a specified bandwidth of a long term evolution (LTE) system; wherein, the sampling rate of the data transmission device is m/n times a sampling rate corresponding to said specified bandwidth LTE system, m and n being positive integers.

Abstract: Provided are message transmitting or receiving methods and devices, a base station, and a terminal. Uplink access signals are divided into a first pre-determined number of uplink access signal groups. An uplink access signal, which is transmitted in an uplink access beam form based on one or more uplink access signal groups, is received from a second communication node. An uplink access signal group to which the uplink access signal pertains is determined. One or more uplink access signals contained in the uplink access signal group are transmitted under at least one of the following restriction conditions: a restricted sequence transmitting order, a restricted transmitting occasion, and a restricted transmitting frequency domain position. An uplink access response message is transmitted to the second communication node over an uplink access response resource corresponding to the determined uplink access signal group.

Abstract: Provided are a method for realizing device-to-device communication relay selection, a network control node and a user equipment. The method includes: a network control node receiving relay-related information sent by user equipment and determining a relay node; and the network control node sending device-to-device communication relay configuration information to the determined relay node. In the technical solution, by sending relay-related information in a network to perform selection or configuration of a relay node, a corresponding solution is provided for a scenario for which relay selection is not provided, and thereby the selection of the relay node is realized.

Abstract: A method, device and a computer storage medium for wireless connection are provided. The method includes that: a main Transmission Point (TP) sends a connection indication to User Equipment (UE), the connection indication being used to indicate the UE to establish a connection with at least one sub TP on the premise of keeping a current connection with the main TP.

Abstract: A method, for realizing wireless link processing, a base station and a terminal are disclosed. The method includes: a first communication node receiving reference information from a second communication node and determining link information for performing wireless link communication; and the first communication node communicating with the second communication node according to the determined link information. In the technical solution of the present document, the link information for performing the wireless link communication is determined according to the reference information of the second communication node as a receiving party, to realize that the first communication node communicates with the second communication node according to the determined link information.

Abstract: The present invention discloses methods and apparatuses for quantizing, and feeding back channel information and precoding data. In the above methods, a channel measurement pilot signal is received from a base station. The channel information is acquired by performing channel measurement according to the channel measurement pilot signal. CMatrix1 and CMatrix2 are calculated using the channel information, herein CMatrix1 and CMatrix2 are used to quantize the channel information or indicate the base station to perform precoding. And first indication information of CMatrix1 and/or second indication information of CMatrix2 are fed back to the base station. According to the technical solutions of the present invention, as the influence of the polarization leakage is considered in the feedback design, a significant performance gain exists in a case that the polarization leakage actually occurs.