Abstract:
Provided are a method and apparatus for occupying an unlicensed carrier to send a discovery signal, and an access point. The method includes the following steps. A parameter of a discovery signal sent on an unlicensed carrier by an access point is configured. The access point sends the discovery signal on the unlicensed carrier. The technical solution of the present disclosure can reduce the time for processing items other than data sending (such as synchronization) after each time the access point preempts a resource, and can improve the spectral efficiency of the unlicensed carrier.
Abstract:
A method and system for realizing notification of a state of a small cell are disclosed, herein the method includes: according to a carrier scenario in which cell state information for executing an ON/OFF operation is transmitted, determining corresponding members and transmission manners for transmitting the cell state information for executing an ON/OFF operation to a User Equipment (UE); and according to the determined members and transmission manners for transmitting the cell state information for executing an ON/OFF operation to the UE, transmitting the cell state information for executing an ON/OFF operation to complete the notification of the state of the small cell; herein the members for transmitting the cell state information for executing an ON/OFF operation are PCells, SCells or small cells. The cell state information for executing an ON/OFF operation is transmitted to the UE by using corresponding members and transmission manners in the different scenarios.
Abstract:
The present document discloses a method and a system for determining a delay difference, and a base station and UE, the method includes: a serving cell receiving information of time measured by a neighboring cell at which uplink channel/signal information of UE for determining a synchronization delay is received; and the serving cell determining a synchronization delay difference between the UE to the serving cell itself and the UE to the neighboring cell according to information of time which is measured by the serving cell at which the uplink channel/signal information of the UE for determining the synchronization delay is received, and the information of time measured by the neighboring cell and at which the uplink channel/signal information of the UE for determining the synchronization delay is received, wherein the uplink channel/signal information measured by the serving cell is the same as the uplink channel/signal information is measured by the neighboring cell.
Abstract:
A method and base station for coordinated multi point data transmission are disclosed. The method includes: a base station receiving a per-cell CQI value reported by a UE; looking up an SINR-CQI mapping table according to the per-cell CQI value, and acquiring a subband/broadband SINR value; performing CQI recalculation according to the subband/broadband SINR value, and acquiring a recalculated subband/broadband CQI value; and selecting modulation and coding according to the recalculated subband/broadband CQI value to schedule data transmission. With the method and base station of the embodiments of the present document, in a CoMP system, in a joint transmission scenario, the accuracy of the CQI value used by the BS for scheduling is improved, and the oscillation during an AMC process is reduced.