Abstract: Example channel feedback information transmission methods are disclosed. In one example method, a terminal performs channel estimation on a subcarrier on which a downlink pilot is located, and obtains first channel information. The terminal performs a channel interpolation calculation on a channel of a data subcarrier according to the first channel information, and obtains second channel information according to a result of the channel interpolation calculation. The terminal determines a feedback factor, and obtains third channel information from the second channel information according to the feedback factor, where an amount of the third channel information is less than an amount of the second channel information. The terminal feeds back the third channel information to a base station. Some channel information is selected and fed back by means of a feedback factor.

Abstract: A network communication method and a network communications apparatus where the method is applied to an over-the-air network system, and the over-the-air network system includes a service processing device and a level-1 over-the-air network node. The method includes generating, by the service processing device, a collection instruction, where the collection instruction includes a preset collection rule, the preset collection rule is used to instruct the level-1 over-the-air network node to collect, according to the preset collection rule, service data reported by a terminal in a target area, and the target area is an area covered by the level-1 over-the-air network node; sending, by the service processing device, the collection instruction to the level-1 over-the-air network node; and collecting, by the level-1 over-the-air network node according to the preset collection rule in the collection instruction, the service data reported by the terminal in the target area.

Abstract: Example channel feedback information transmission methods are disclosed. In one example method, a terminal performs channel estimation on a subcarrier on which a downlink pilot is located, and obtains first channel information. The terminal performs a channel interpolation calculation on a channel of a data subcarrier according to the first channel information, and obtains second channel information according to a result of the channel interpolation calculation. The terminal determines a feedback factor, and obtains third channel information from the second channel information according to the feedback factor, where an amount of the third channel information is less than an amount of the second channel information. The terminal feeds back the third channel information to a base station. Some channel information is selected and fed back by means of a feedback factor.

Abstract: A channel feedback information transmission method is disclosed. A terminal performs channel estimation on a subcarrier on which a downlink pilot is located, and obtains first channel information; the terminal performs a channel interpolation calculation on a channel of a data subcarrier according to the first channel information, and obtains second channel information according to a result of the channel interpolation calculation; the terminal determines a feedback factor; the terminal obtains third channel information from the second channel information according to the feedback factor, where an amount of the third channel information is less than an amount of the second channel information; and the terminal feeds back the third channel information to a base station. Some channel information is selected and fed back by means of a feedback factor.

Abstract: The present invention discloses a signal processing method, apparatus, and system. In M user equipments, an active set Ki and an interference set K?i of a user equipment i are determined according to power measurement values from the user equipment i to N sites; for the active set Ki of the user equipment i, superposition of sent signals of all other user equipments j of all active sites ki are cancelled out with each other, to obtain one constraint condition of a weight, and for the M user equipments, M constraint conditions are obtained, and a weight subspace T is determined; and one weight is determined in the weight subspace according to an interfering signal of another user equipment j for the user equipment i in the interference set K?i of the user equipment i and a wanted signal of the user equipment i in the active set Ki of the user equipment i.

Abstract: Embodiments of the present invention disclose a signal processing method, apparatus, and system, where the method includes: receiving a downlink signal that carries an uplink signal; and performing first interference cancellation on the uplink signal by using an estimated self-interference signal, so that a remaining amount of interference of the uplink signal is less than a first interference threshold, thereby minimizing out-of-band interference of the uplink signal on the downlink signal without using a plurality of radio frequency front-ends or without using a duplexer on a same radio frequency front-end. In the embodiments of the present invention, no duplexer is adopted, and therefore, difficulty and a cost of base station and system layout can be reduced, and extra energy consumption of a mobile terminal can also be reduced.

Abstract: The present disclosure relates to embodiments of a precoding method and systems for implementing those embodiments. The embodiments includes receiving, by a level 2 data center, level 1 channel information sent by at least two level 1 data centers, where the level 1 channel information includes a channel matrix between a terminal and the level 1 data center; performing, by the level 2 data center, calculation according to the channel matrix, to obtain a level 2 precoding matrix; and generating, by the level 2 data center, a level 2 signal according to a signal sent to the terminal and the level 2 precoding matrix, and sending the level 2 signal to the level 1 data center. The level 2 data center generates the level 2 signal according to the signal sent to the terminal and the level 2 precoding matrix.

Abstract: A network communication method and a network communications apparatus where the method is applied to an over-the-air network system, and the over-the-air network system includes a service processing device and a level-1 over-the-air network node. The method includes generating, by the service processing device, a collection instruction, where the collection instruction includes a preset collection rule, the preset collection rule is used to instruct the level-1 over-the-air network node to collect, according to the preset collection rule, service data reported by a terminal in a target area, and the target area is an area covered by the level-1 over-the-air network node; sending, by the service processing device, the collection instruction to the level-1 over-the-air network node; and collecting, by the level-1 over-the-air network node according to the preset collection rule in the collection instruction, the service data reported by the terminal in the target area.

Abstract: Embodiments of the present invention disclose a hierarchical network registration method. The method is applied to a hierarchical network formed by a terrestrial network and at least one layer of an air network, and the method includes: obtaining, by a radio network node, a registration result of an air network node, where the radio network node is located in the terrestrial network; the air network node is located in the air network, and covers the radio network node; and the registration result includes attribute information and beam information of the air network node; and broadcasting, by the radio network node, the registration result to a mobile user covered by the radio network node. The air network in the method of the present invention may be a satellite network, and the hierarchical network is a hierarchical network formed by the satellite network and the terrestrial radio network.

Abstract: The present invention discloses a self-interference signal cancellation device. The device includes a first self-interference cancellation unit, configured to: obtain a first analog signal by coupling a transmit signal output by an analog transmit processing module; perform analog-to-digital conversion on the first analog signal, to obtain a first digital signal; perform interference reconstruction according to the first digital signal, to obtain a first digital interference cancellation signal; and cancel, according to the first digital interference cancellation signal, a self-interference signal included in a digital signal output by a first analog-to-digital conversion module, to obtain a first output signal, and output the first output signal to a digital receive processing module.

Abstract: The present invention discloses a method for scheduling user equipment on a full-duplex cellular network, including: determining a pairing set for each piece of user equipment in a cell, where a pairing parameter of the piece of user equipment and any piece of user equipment that is in the pairing set of the piece of user equipment meets a preset threshold; and selecting, when a piece of user equipment is scheduled to perform data transmission, another piece of user equipment from a pairing set of the piece of user equipment to perform data transmission in an opposite direction. Embodiments of the present invention further provide a corresponding apparatus. According to the technical solution of the present invention, existing spectrum resources can be utilized more thoroughly and spectrum utilization efficiency of wireless access can be improved.

Abstract: The present disclosure relates to embodiments of a precoding method and systems for implementing those embodiments. The embodiments includes receiving, by a level 2 data center, level 1 channel information sent by at least two level 1 data centers, where the level 1 channel information includes a channel matrix between a terminal and the level 1 data center; performing, by the level 2 data center, calculation according to the channel matrix, to obtain a level 2 precoding matrix; and generating, by the level 2 data center, a level 2 signal according to a signal sent to the terminal and the level 2 precoding matrix, and sending the level 2 signal to the level 1 data center. The level 2 data center generates the level 2 signal according to the signal sent to the terminal and the level 2 precoding matrix.

Abstract: Embodiments of the present invention relate to a method and an apparatus for processing signal interference, including: splitting a first self-interference signal into at least two same sub self-interference signals, adjusting amplitudes and phases of the sub self-interference signals to obtain adjusted sub-signals, superposing the adjusted sub-signals and received signals, to obtain superposed sub-signals, filtering the superposed sub-signals by using filters of corresponding channels, to obtain wanted sub-signals, and merging each of the wanted sub-signals to obtain a complete wanted signal. Because received signals are separately filtered by using n different channels, it can be implemented that a self-interference signal can be effectively filtered out on each frequency band.

Abstract: A channel feedback information transmission method is disclosed. A terminal performs channel estimation on a subcarrier on which a downlink pilot is located, and obtains first channel information; the terminal performs a channel interpolation calculation on a channel of a data subcarrier according to the first channel information, and obtains second channel information according to a result of the channel interpolation calculation; the terminal determines a feedback factor; the terminal obtains third channel information from the second channel information according to the feedback factor, where an amount of the third channel information is less than an amount of the second channel information; and the terminal feeds back the third channel information to a base station. Some channel information is selected and fed back by means of a feedback factor.

Abstract: The present invention discloses a signal processing method, apparatus, and system. In M user equipments, an active set Ki and an interference set K?i of a user equipment i are determined according to power measurement values from the user equipment i to N sites; for the active set Ki of the user equipment i, superposition of sent signals of all other user equipments j of all active sites ki are cancelled out with each other, to obtain one constraint condition of a weight, and for the M user equipments, M constraint conditions are obtained, and a weight subspace T is determined; and one weight is determined in the weight subspace according to an interfering signal of another user equipment j for the user equipment i in the interference set K?i of the user equipment i and a wanted signal of the user equipment i in the active set Ki of the user equipment i.

Abstract: Embodiments of the present invention relate to a method and an apparatus for processing signal interference, including: splitting a first self-interference signal into at least two same sub self-interference signals, adjusting amplitudes and phases of the sub self-interference signals to obtain adjusted sub-signals, superposing the adjusted sub-signals and received signals, to obtain superposed sub-signals, filtering the superposed sub-signals by using filters of corresponding channels, to obtain wanted sub-signals, and merging each of the wanted sub-signals to obtain a complete wanted signal. Because received signals are separately filtered by using n different channels, it can be implemented that a self-interference signal can be effectively filtered out on each frequency band.

Abstract: The present invention discloses a self-interference signal cancellation device. The device includes a first self-interference cancellation unit, configured to: obtain a first analog signal by coupling a transmit signal output by an analog transmit processing module; perform analog-to-digital conversion on the first analog signal, to obtain a first digital signal; perform interference reconstruction according to the first digital signal, to obtain a first digital interference cancellation signal; and cancel, according to the first digital interference cancellation signal, a self-interference signal included in a digital signal output by a first analog-to-digital conversion module, to obtain a first output signal, and output the first output signal to a digital receive processing module.

Abstract: Embodiments of the present invention relate to a method and an apparatus for processing signal interference, including: splitting a first self-interference signal into at least two same sub self-interference signals, adjusting amplitudes and phases of the sub self-interference signals to obtain adjusted sub-signals, superposing the adjusted sub-signals and received signals, to obtain superposed sub-signals, filtering the superposed sub-signals by using filters of corresponding channels, to obtain wanted sub-signals, and merging each of the wanted sub-signals to obtain a complete wanted signal. Because received signals are separately filtered by using n different channels, it can be implemented that a self-interference signal can be effectively filtered out on each frequency band.

Abstract: The present invention discloses a method for scheduling user equipment on a full-duplex cellular network, including: determining a pairing set for each piece of user equipment in a cell, where a pairing parameter of the piece of user equipment and any piece of user equipment that is in the pairing set of the piece of user equipment meets a preset threshold; and selecting, when a piece of user equipment is scheduled to perform data transmission, another piece of user equipment from a pairing set of the piece of user equipment to perform data transmission in an opposite direction. Embodiments of the present invention further provide a corresponding apparatus. According to the technical solution of the present invention, existing spectrum resources can be utilized more thoroughly and spectrum utilization efficiency of wireless access can be improved.