Abstract:
Embodiments of the present invention provide a method and an apparatus for coordinated multi-node transmission The method includes: acquiring, by a user equipment, channel state indicator information of each coordinating node; feeding back, by the user equipment, all information or a part of information in the acquired channel state indicator information to a base station, so that each coordinating node performs, according to the channel state indicator information that has been fed back, scheduling on the user equipment and/or one or more other user equipments served by each coordinating node; and if the user equipment is scheduled, receiving, by the user equipment, scheduling result notification information sent by the base station, and receiving, by the user equipment according to the scheduling result notification information, data transmitted by a base station that corresponds to a coordinating node serving the user equipment. The present invention is applicable to a radio communications system.
Abstract:
The present invention provide a synchronization method and base station, and the method includes: determining, by a base station, a synchronization status of the base station itself, where the synchronization status includes: a synchronized base station, or, a synchronization source base station; and configuring, by the base station, according to the determined synchronization status of the base station itself, a synchronization reference signal of the base station, in order that a first time is different from a second time, where the first time is a time when the synchronization reference signal of the base station is transmitted, and the second time is a time when an inter-station synchronization reference signal of the base station's synchronization source base station is transmitted. The embodiments of the present invention can improve the synchronization performance.
Abstract:
The present invention provides a method of processing reference signal configuration information, a base station and a terminal. The method includes: sending, by a base station, first reference signal configuration information and at least one piece of second reference signal configuration information to a terminal, such that the terminal performs detection of downlink channel state information according to the first reference signal configuration information and the at least one piece of second reference signal configuration information, wherein the first reference signal configuration information includes configuration information of a reference signal sent by antenna port(s) identified by a first number of ports, and the second reference signal configuration information includes configuration information of a reference signal sent by at least one antenna port of other antenna ports than the antenna port(s) identified by the first number of ports among the antenna ports configured by the base station.
Abstract:
A method for determining codebook generation mode is disclosed by the present disclosure, comprising: A: grouping M kinds of ranks among N kinds of ranks supported by a user equipment (UE) into Z sets of rank, and for each set, respectively selecting a codebook generation mode from at least two preset codebook generation modes, where N, M and Z are integers greater than or equal to 1, M is less than or equal to N, and Z is less than or equal to M; B: informing the UE or a serving cell thereof of the selection. The present disclosure also discloses a UE and a base station. The system performance can be improved by adopting the method and devices of the present disclosure.
Abstract:
Embodiments of the present invention provide a data transmission method, a user equipment, and a base station. The method includes: obtaining a resource element RE configuration, where an RE indicated by the RE configuration is a subset of the RE available for sending a channel state information reference signal CSI-RS and is the RE onto which a data symbol can be mapped; and receiving, according to the RE configuration, the data symbol that is sent by a base station on the RE indicated by the RE configuration. In the embodiments of the present invention, a data symbol can be mapped onto the RE that is used for sending the CSI-RS, so that a UE can receive the data symbol on the RE that is used for sending the CSI-RS, thereby improving the utilization efficiency of the RE.
Abstract:
Embodiments of the present invention provide a method for mapping control channel resources, a base station, and a user equipment. The method for mapping control channel resources includes: determining, by a base station, the number of E-CCEs multiplexed in one resource set, where the E-CCEs are borne over REs for transmission in the resource set, and the E-CCEs constitute an E-PDCCH; sending the E-PDCCH to a user equipment according to the determined number of E-CCEs multiplexed in one resource set; and receiving, by the user equipment, the E-PDCCH, and obtaining the number of E-CCEs multiplexed in one resource set. The embodiments of the present invention apply to a resource mapping.
Abstract:
Embodiments of the present invention provide a signal processing method and a terminal. The method includes: receiving a control signal. Channel state information between a coordinated base station and the terminal and between the serving base station and the terminal is determined. Information is about determined time difference or information about a phase difference of arrival between signals sent by the coordinated base station and the serving base station at the terminal according to the channel state information. Adjustment information is sent to the serving base station so that the serving base station adjusts the sending time, phase, or pre-coding manner of the signal according to the adjustment information.
Abstract:
Embodiments of the present invention disclose a method, terminal, and base station for feeding back channel information. The method includes determining that channel information between access points needs to be fed back and sending feedback content to a base station on a resource configured by the base station, wherein the feedback content includes at least channel adjustment information between a reference access point and a non-reference access point. The resource configured by the base station includes a dedicated resource used to feed back the channel adjustment information and configured by the base station, or all or a part of resources used for periodic feedback and configured by the base station, or all or a part of resources used for aperiodic feedback and configured by the base station.
Abstract:
Embodiments of the present invention disclose a method and a device for notifying reference signal configuration information, and relate to the field of communications technologies. The method includes: coding, according to channel state information-reference signal (CSI-RS) configuration information, the CSI-RS configuration information, to obtain a CSI-RS configuration information code; storing a mapping relation between the CSI-RS configuration information code and the CSI-RS configuration information, and sending the mapping relation to a UE for storage; searching, in the stored mapping relation between the CSI-RS configuration information code and the CSI-RS configuration information, for a CSI-RS configuration information code corresponding to CSI-RS configuration information to be notified; and sending the found CSI-RS configuration information code to the UE, so that the UE determines CSI-RS configuration information according to the received CSI-RS configuration information code and the mapping relation between the CSI-RS configuration information code and the CSI-RS configuration information.