Abstract:
Example communications methods and apparatus are described. One example method includes generating a first signal by a base station. The base station performs cyclic delay diversity (CDD) weighted processing on the first signal to obtain a second signal, and performs densified beam weighted processing on the second signal to obtain a third signal. The third signal is sent by the base station via an antenna. According to the foregoing method, the CDD weighted processing is performed on the first signal generated by the base station, so that time diversity can be obtained when the first signal is transmitted. In addition, the densified beam weighted processing is performed on the second signal obtained after the CDD weighted processing, so that a quantity of beams scanned by the base station can be increased.
Abstract:
A method includes: an RRU selection decision cycle of a current RRU shared cell arriving; and determining, according to a current downlink measurement item of a user terminal and an uplink measurement item of each RRU, that at least one RRU among the RRUs transmits a downlink carrier signal; or, determining, according to the current downlink measurement item of the user terminal, the uplink measurement item of each RRU, and power specification of each RRU, that at least one RRU among the RRUs transmits a downlink carrier signal, where a downlink channel includes: a traffic channel and a stand-alone dedicated control channel.
Abstract:
Embodiments of this application provide an EIRP control method and a communications apparatus. In this solution, an EIRP threshold of a spatial grid may be determined, where the EIRP threshold of the spatial grid is related to a safety distance of the spatial grid; and a plurality of beams are controlled, so that a total EIRP of the plurality of beams in the spatial grid is less than or equal to the EIRP threshold. According to the foregoing solution, a total EIRP of each spatial grid may be controlled, at a granularity of a spatial grid, to not exceed an EIRP threshold of the spatial grid, so that deployment of a MIMO access network device satisfies an EMF strength requirement specified by each country/region.
Abstract:
The present invention relates to the field of communications technologies and discloses a multi-site cell communication method, a base station controller, a base station, and a communication system thereof to increase cell capacity of a base station based on a multi-site cell technology. A multi-site cell communication method includes: when the terminals that respectively access different subsites occupy different logical channels, handing over terminals, which access different subsites respectively, to a same logical channel. A multi-site cell communication method includes: using a same logical channel to modulate and send downlink data to terminals that access different subsites respectively; and/or receiving and demodulating uplink data that is sent through the same logical channel by the terminals that access different subsites respectively.
Abstract:
The present disclosure relates to equivalent isotropically radiated power (EIRP) control methods and communications apparatus. In one example method, an EIRP threshold of a spatial grid is determined, where the EIRP threshold of the spatial grid is related to a safety distance of the spatial grid, and a plurality of beams are controlled, so that a total EIRP of the plurality of beams in the spatial grid is less than or equal to the EIRP threshold.
Abstract:
Embodiments of the present invention provide a networking method applied to a multi-site cell, a base band unit, a remote RF unit and a system. The method includes: connecting at least one RRU of one or more remote end remote units RRUs under a base station of a local cell to at least two base stations. The at least two base stations include the base station of the local cell and at least one other base station. Communication, is continued by using the at least one other base station when the communication between the one RRU of the one or more RRUs and the base station of the local cell fails.