Abstract: This application provides example communication methods and apparatuses. Embodiments include a network device that determines a frequency band of a first radio on chip from a second frequency band and a third frequency band based on at least one of a first frequency band, uplink load, or an uplink resource. The first frequency band is a frequency band corresponding to a first component carrier of a terminal apparatus, the second frequency band is the same as a frequency band of a second radio on chip, and the uplink resource is used to carry a radio signal of the terminal apparatus. The network device may further receive the radio signal from the terminal apparatus through the first radio on chip and the second radio on chip.

Abstract: Embodiments of the present application relate to the communications field, and provide a subframe configuration method and apparatus. The method includes: classifying, by a base station, user equipments UEs in a first cell into N user groups, and determining an uplink-downlink subframe configuration required by each user group; determining a primary uplink-downlink subframe configuration of the first cell according to the uplink-downlink subframe configuration of each user group; determining configuration indication information of each user group according to the primary uplink-downlink subframe configuration and the uplink-downlink subframe configuration required by each user group; and sending, to each user group in the N user groups, the primary uplink-downlink subframe configuration and configuration indication information including at least the configuration indication information of the user group. The embodiments of the present application are applied to a full duplex scenario of a base station.

Abstract: This application relates to a scheduling method and a device. In the scheduling method, a base station sends, at a first moment, uplink grant (UL GRANT) information to a terminal that is to perform uplink data transmission; the base station sends, at a second moment, downlink data to a terminal that is determined by the base station and that is to perform downlink data transmission, where the second moment is a moment at which the terminal that is to perform uplink data transmission sends uplink data after receiving the uplink grant information at the first moment.

Abstract: Embodiments of the present invention disclose a correction signal transmission method, including: acquiring, by a base station of a first network, a transmit timeslot position that is in a guard period GP used for transmitting a correction signal, where the transmit timeslot position is a timeslot position that is determined based on a timeslot configuration of a second network and/or a signal transmitted by the second network, and interference suffered from a signal transmitted by the second network at the transmit timeslot position is less than a preset interference threshold; and the first network and the second network are comprised in hybrid networks; and transmitting, by the base station, a correction signal at the transmit timeslot position. Correspondingly, the embodiments of the present invention further disclose a base station. Interference to a correction signal in hybrid networks can be reduced in the embodiments of the present invention.

Abstract: The present disclosure relates to antennas, lighting systems, and communications systems. One example antenna includes a radiating element and a feeding unit. The antenna is integrated with a lighting system, where the lighting system includes a protective cover and a light source disposed inside the protective cover. Both the radiating element and the feeding unit of the antenna are integrated with the protective cover of the lighting system. The radiating element is attached to a surface of a cover body of the protective cover that is in a forward direction of the light source. One part of the feeding unit is integrated with the protective cover, and is electrically connected to the radiating element, and the other part of the feeding unit supports an electrical connection to a signal processing device.

Abstract: This application relates to a scheduling method and a device. In the scheduling method, a base station sends, at a first moment, uplink grant (UL GRANT) information to a terminal that is to perform uplink data transmission; the base station sends, at a second moment, downlink data to a terminal that is determined by the base station and that is to perform downlink data transmission, where the second moment is a moment at which the terminal that is to perform uplink data transmission sends uplink data after receiving the uplink grant information at the first moment.

Abstract: Embodiments of the present application relate to the communications field, and provide a subframe configuration method and apparatus. The method includes: classifying, by a base station, user equipments UEs in a first cell into N user groups, and determining an uplink-downlink subframe configuration required by each user group; determining a primary uplink-downlink subframe configuration of the first cell according to the uplink-downlink subframe configuration of each user group; determining configuration indication information of each user group according to the primary uplink-downlink subframe configuration and the uplink-downlink subframe configuration required by each user group; and sending, to each user group in the N user groups, the primary uplink-downlink subframe configuration and configuration indication information including at least the configuration indication information of the user group. The embodiments of the present application are applied to a full duplex scenario of a base station.

Abstract: The present disclosure relates to a remote radio unit (RRU), which is connected to a baseband unit (BBU) and an antenna, comprising: a service transmit channel configured to transmit a first correction signal through the antenna, and a standing wave detecting circuit associated with the service transmit channel, wherein: a working frequency of the standing wave detecting circuit is consistent with the service transmit channel, and the standing wave detecting circuit is capable of detecting a standing wave ratio of the service transmit channel and is configured to receive a correction signal looped back by the antenna, and send the correction signal looped back by the antenna to the BBU, wherein the correction signal looped back by the antenna comprises a portion of the first correction signal reflected by the antenna and is used for a calculation of a correction coefficient of the service transmit channel.

Abstract: The present invention discloses a method and an apparatus for channel calibration among multiple RRUs, and pertains to the field of communications technologies. The method includes self-calibrating two RRUs to obtain two self-calibration coefficient, exchanging calibration sequences between the two RRUs through an air interface, returning, by one RRU, the calibration sequence received from another RRU to the another RRU in the air interface, and acquiring a calibration coefficient of the another RRU according to the calibration sequences and the self-calibration coefficients.

Abstract: Embodiments of the present application disclose a CoMP JT communication method, used to implement CoMP JT communication in communication of LTE R9 and an earlier release. The method in the embodiments of the present application includes: configuring, by a serving base station, a JT serving subframe; sending, by the serving base station, coordination information to a coordinated base station, so that the coordinated base station configures a JT coordinated subframe according to the coordination information; and when UE in a serving cell needs to perform CoMP JT communication, sending, by the serving base station, the JT serving subframe to the UE in the serving cell to provide a CoMP JT communication service for the UE in the serving cell. The embodiments of the present application further provide a related base station.

Abstract: Embodiments of the present invention provide a joint channel correction method, a joint channel correction unit and a base station. The joint channel correction method can implement joint channel correction between base stations in a base station set. At least one base station in the base station set is connected to the joint channel correction unit, so that all base stations in the base station set share a common reference transmit end and a common reference receive end.

Abstract: Disclosed are a method, device and system for transmitting a Multi-user Multiple-Input-Multiple-Output (MU-MIMO) pilot and data. The method includes: when at least two terminals transmit a MU-MIMO pilot and data on one same time/frequency resource, constructing a k-stream SU-MIMO pilot and data; based on the configuration mode of the k-stream SU-MIMO pilot, modifying demodulation pilot port parameters of the at least two terminals; and based on the transmission mode of the k-stream SU-MIMO pilot and data, transmitting the k-stream SU-MIMO pilot and data to the at least two terminals, respectively. Further disclosed are a device and system for transmitting a MU-MIMO pilot and data.

Abstract: Embodiments of the present invention disclose a correction signal transmission method, including: acquiring, by a base station of a first network, a transmit timeslot position that is in a guard period GP used for transmitting a correction signal, where the transmit timeslot position is a timeslot position that is determined based on a timeslot configuration of a second network and/or a signal transmitted by the second network, and interference suffered from a signal transmitted by the second network at the transmit timeslot position is less than a preset interference threshold; and the first network and the second network are comprised in hybrid networks; and transmitting, by the base station, a correction signal at the transmit timeslot position. Correspondingly, the embodiments of the present invention further disclose a base station. Interference to a correction signal in hybrid networks can be reduced in the embodiments of the present invention.

Abstract: The present disclosure relates to a remote radio unit (RRU), which is connected to a baseband unit (BBU) and an antenna, comprising: a service transmit channel configured to transmit a first correction signal through the antenna, and a standing wave detecting circuit associated with the service transmit channel, wherein: a working frequency of the standing wave detecting circuit is consistent with the service transmit channel, and the standing wave detecting circuit is capable of detecting a standing wave ratio of the service transmit channel and is configured to receive a correction signal looped back by the antenna, and send the correction signal looped back by the antenna to the BBU, wherein the correction signal looped back by the antenna comprises a portion of the first correction signal reflected by the antenna and is used for a calculation of a correction coefficient of the service transmit channel.

Abstract: Embodiments of the present invention relate to a method and an apparatus for reducing transmit power. The method includes allocating initial bandwidth to all terminals scheduled in a current timeslot in a cell; calculating remaining bandwidth in the current timeslot and remaining system bandwidth; if the remaining system bandwidth is greater than preset threshold bandwidth, reducing transmit power or a frequency domain to calculate expanded bandwidth; calculating a transmit power reduction value corresponding to the terminal in a current scheduling timeslot, and a time domain system power reduction value, or a final frequency domain system power reduction value of each terminal; when the time domain system power reduction value is not less than a preset threshold, or when a final frequency domain transmit power reduction value of each terminal is not less than a preset threshold, reducing transmit power of a base station.

Abstract: The present invention discloses a method and an apparatus for channel calibration among multiple RRUs, and pertains to the field of communications technologies. The method includes self-calibrating two RRUs to obtain two self-calibration coefficient, exchanging calibration sequences between the two RRUs through an air interface, returning, by one RRU, the calibration sequence received from another RRU to the another RRU in the air interface, and acquiring a calibration coefficient of the another RRU according to the calibration sequences and the self-calibration coefficients.

Abstract: According to the present invention, a first self-correction coefficient and a second self-correction coefficient are acquired by performing a self-correction to an RRU0 and an RRU1 respectively, then a first compensation coefficient and a second compensation coefficient are acquired through transmitting and receiving correction signals to or from each other via any antenna of the RRU0 and any antenna of the RRU1, a first correction coefficient and a second correction coefficient are acquired according to the first self-correction coefficient, the first compensation coefficient, the second self-correction coefficient and the second compensation coefficient, and channel compensation is performed to the RRU0 and the RRU1 respectively, thus the joint channel correction among multiple RRUs are realized.

Abstract: Embodiments of the present invention relate to a method and an apparatus for reducing transmit power. The method includes allocating initial bandwidth to all terminals scheduled in a current timeslot in a cell; calculating remaining bandwidth in the current timeslot and remaining system bandwidth; if the remaining system bandwidth is greater than preset threshold bandwidth, reducing transmit power or a frequency domain to calculate expanded bandwidth; calculating a transmit power reduction value corresponding to the terminal in a current scheduling timeslot, and a time domain system power reduction value, or a final frequency domain system power reduction value of each terminal; when the time domain system power reduction value is not less than a preset threshold, or when a final frequency domain transmit power reduction value of each terminal is not less than a preset threshold, reducing transmit power of a base station.

Abstract: Disclosed are a method, device and system for transmitting a Multi-user Multiple-Input-Multiple-Output (MU-MIMO) pilot and data. The method includes: when at least two terminals transmit a MU-MIMO pilot and data on one same time/frequency resource, constructing a k-stream SU-MIMO pilot and data; based on the configuration mode of the k-stream SU-MIMO pilot, modifying demodulation pilot port parameters of the at least two terminals; and based on the transmission mode of the k-stream SU-MIMO pilot and data, transmitting the k-stream SU-MIMO pilot and data to the at least two terminals, respectively.

Abstract: Embodiments of the present invention provide a joint channel correction method, a joint channel correction unit and a base station. The joint channel correction method can implement joint channel correction between base stations in a base station set. At least one base station in the base station set is connected to the joint channel correction unit, so that all base stations in the base station set share a common reference transmit end and a common reference receive end.