Abstract: Input sound spectra are acquired. The input sound spectra include sound spectra corresponding to multiple sound sources. Predicted sound spectra are isolated from the input sound spectra by performing spectrum isolation processing on the input sound spectra. Updated input sound spectra are acquired by removing the predicted sound spectra from the input sound spectra. Next isolated predicted sound spectra continue to be acquired through the updated input sound spectra, until the updated input sound spectra include no sound spectrum.

Abstract: Provided are a terminal energy-saving method, a base station and a terminal. One method includes: determining, by a base station, a first parameter of a user equipment (UE), where the first parameter includes at least one of a paging enhanced discontinuous reception (eDRX) parameter in an idle state or a deep sleep parameter in the idle state; and sending the first parameter.

Abstract: Provided are a method and device for sending and processing access control signaling. The method for sending access control signaling includes: sending, by a base station, indication information to User Equipment (UE) via a downlink control channel in a search space, wherein the indication information is used for indicating to trigger a contention-based random access procedure or a non-contention-based random access procedure.

Abstract: Provided are a method and device for determining precoding, a method and device for detecting data, a storage medium and an electronic device. The method for determining precoding includes: receiving, by a first communication node, a precoding matrix indicator (PMI) sent by a second communication node; and determining a precoding matrix used on a control channel according to the PMI and a precoding parameter; where the precoding parameter includes at least one of: a PMI delay, the number of repetitions of the control channel, an aggregation level of the control channel, a candidate resource of the control channel, a starting physical resource block (PRB) sequence number of the control channel, a repetition resource group of the control channel, or a PRB set of the control channel.

Abstract: A method for fabricating a fly-eye lens comprises the following steps: preparing a fly-eye mold (1) and a fly-eye base (2), wherein the fly-eye mold (1) is provided with a hemispherical recess that matches the fly-eye base (2), the bottom of the hemispherical recess is provided with a number of arrayed concave surfaces, the fly-eye base (2) has a hemispherical structure, mini-channels (3) penetrating through a spherical surface and a flat surface of the fly-eye base (2) are arranged inside the fly-eye base, and the arrangement of openings of the mini-channels (3) at the spherical surface is in consistency with that of the concave surfaces inside the fly-eye mold (1); and installing the fly-eye base (2) in the fly-eye mold (1) in a fitted manner, injecting polydimethylsiloxane through the mini-channels (3) of the fly-eye base (2), curing the polydimethylsiloxane, and removing the fly-eye base (2) from the fly-eye mold (1) to obtain the fly-eye lens.

Abstract: Provided are a method and device for sending and receiving a Wake Up Signal (WUS), and an electronic device. The sending method includes: negotiating, by a communication node, with a terminal about a service type of the terminal; and sending, by the communication node, a WUS according to the service type.

Abstract: Provided are a search space optimization method and apparatus, and a storage medium. The search space optimization method includes that the UE receives a plurality of common search spaces configured by a base station; and in a case where a preset condition is satisfied, the UE switches between the plurality of common search spaces.

Abstract: Provided are a method and a device for processing a timing advance (TA), and a method and a device for sending indication information. One of the methods includes: in response to a first condition being satisfied, determining that a TA of a terminal is in an invalid state; where the first condition includes at least one of the followings: in response to the terminal being a stationary terminal, a TA timer times out and a change amount of a first measurement value exceeds a first threshold; or in response to the terminal being a non-stationary terminal, the TA timer times out, or the change amount of the first measurement value exceeds the first threshold, or the TA timer times out and the change amount of the first measurement value exceeds the first threshold.

Abstract: Embodiments of the disclosed technologies provide a carrier frequency selecting method and apparatus. The method comprises: determining, by UE, whether information of a service carrier frequency sent by a base station is received, wherein the service carrier frequency is the carrier frequency to carry traffic selected by the base station when a target cell carrying the UE is a multi-carrier cell; residing, by the UE, at a carrier frequency corresponding to the information for a service carrier frequency, if so; and, otherwise, residing, by the UE, at an original camped carrier frequency. With the embodiments of the disclosed technologies, the problem that a service carrier frequency selecting strategy in related techniques is to perform selection passively and lacks initiative is solved, and a technical basis for balancing loads on carrier frequencies carrying traffic is provided and further system efficiency is enhanced for an NB-IoT system, which is mainly to transmit small data.

Abstract: Provided are signal sending method and apparatus, and a computer storage medium. The method includes: sending a reference signal on an invalid subframe. The method further includes: in a guard band mode, if a downlink timeslot of a special subframe includes N downlink symbols, determining to send the reference signal on the N downlink symbols. The method further includes: mapping and spreading a code word on a preset number of subframes or resource units for sending the mapped and spread code word. The method further includes: sending the reference signal on an orthogonal frequency division multiplexing (OFDM) symbol, where a resource element other than a resource element where the reference signal is located on the OFDM symbol is a muting resource element, and no data is mapped or sent on the muting resource element.

Abstract: Provided are an information transmission method, a base station, a terminal and a computer-readable storage medium. The information transmission method includes: a base station sending a first message. The first message includes at least one of: at least one set of channel quality threshold values, where each of the at least one set of channel quality threshold values includes at least one channel quality threshold value; or a deviation value relative to the at least one channel quality threshold value. The at least one channel quality threshold value is set according to at least one following type of channel quality: reference signal receiving power, a reference signal receiving quality, a downlink signal to interference plus noise ratio, a downlink signal to noise ratio, an uplink signal to interference plus noise ratio, an uplink signal to noise ratio, a downlink path loss, or an uplink path loss.

Abstract: Disclosed are a resource scheduling method and apparatus, and a computer-readable storage medium. The method includes: an interleaving granularity of scheduled physical shared channels is determined according to a preset rule; and the scheduled physical shared channels are interleaved according to the interleaving granularity.

Abstract: Provided are a terminal waking method and device, and a storage medium. The method includes: determining a traffic group where target terminals are located according to a traffic type of the target terminals; determining a sequence index corresponding to the target terminals at least according to the traffic group; and sending a wake up signal (WUS) corresponding to the sequence index to the target terminals.

Abstract: Provided are a method and device for sending a group Wake-Up Signal (WUS). The method includes: configuring, by a base station, indication information corresponding to a group WUS via higher-layer signalling; determining, by the base station, a first parameter according to the indication information; and sending, by the base station, the group WUS to a terminal according to the first parameter, wherein the group WUS is a WUS corresponding to a group of terminals; the indication information includes at least one of: the number of groups, a location parameter, multiplexing information, a threshold, signal set information, a group index set, and a sequence set index; and the first parameter includes at least one of: a resource location corresponding to a group WUS, an all-wake-up signal corresponding to each group, and a sending sequence corresponding to the group WUS.

Abstract: The present disclosure provides a precoding processing method and apparatus for data, and a storage medium. The method includes: determining a precoding mode according to a type of a control channel, wherein the precoding mode at least includes one of: a predefined precoding mode or a feedback precoding mode; and performing precoding processing on data of the control channel according to the precoding mode.

Abstract: A system and method for transmitting a signal are disclosed herein. In one embodiment, the system and method are configured to perform: broadcasting at least one signal via a broadcast channel within a first cell using an anchor carrier, wherein the broadcast channel is associated with the anchor carrier, and wherein the at least one signal indicates information about a plurality of non-anchor carriers that are respectively used in a plurality of second cells.

Abstract: Methods, systems, and devices related to data transmission and management for positioning User Equipment (UE) in a network are described. In one representative aspect, a method for wireless communication includes receiving, at a wireless communication node, a first paging message from a network node, wherein the first paging message includes information that facilitate positioning a mobile device in a wireless network. The method also includes transmitting, from the wireless communication node, a second paging message to the mobile device, wherein the second paging message includes the information that facilitate positioning the mobile device in the first paging message.

Abstract: A data transmission method and device are described. The method includes: a first transmission node determines that a resource in a second predefined time window is available according to a detection value obtained by detection on a resource in a first predefined time window, and/or determines that the resource in the second predefined time window is available according to first feedback information or second feedback information from a second transmission node; and the first transmission node transmits data to the second transmission node by using the resource in the second predefined time window.

Abstract: Provided are a method, apparatus and system for processing feedback information. The method includes, the first transmission node receiving a signal of a data shared channel, and determining data transmission level indication information of a transport block according to the signal; and the first transmission node transmitting the data transmission level indication information corresponding to the transport block to a second transmission node.

Abstract: Provided are a signal transmission method and system, which relates to wireless communications. The method includes: transmitting, by a first node, a first signal. The first signal comprises at least one of: at least one first structure, or at least one second structure. The first structure includes at least one symbol group, and the symbol group of the first structure includes a cyclic prefix and at least one symbol or includes a cyclic prefix, at least one symbol and a guard period. Each symbol group of the first structure occupies a same subcarrier or a same frequency resource in a frequency domain. The second structure includes at least one symbol group, and the symbol group of the second structure comprises a cyclic prefix and at least one symbol or includes a cyclic prefix, at least one symbol and a guard period. Each symbol group of the second structure occupies a same subcarrier or a same frequency resource in the frequency domain.