Method and base station for eliminating paging interference in heterogeneous network

A method for eliminating paging interference in a heterogeneous network, comprising:

• receiving, by a first base station, a paging parameter nB sent by a second base station;
• calculating, by the first base station according to the nB, a subframe for the second base station to send paging information and a paging frame to which the subframe belongs;
• obtaining, by the first base station, a set period;
• and
• within the set period, sending, by the first base station, the paging information on the subframe in the paging frame;
• and within a next set period, stopping, by the first base station, sending information on the subframe in the paging frame, wherein the calculating, by the first base station according to the nB, a subframe for the second base station to send paging information and a paging frame to which the subframe belongs comprises:
• calculating, by the first base station according to the nB, a paging opportunity i_s for the second base station to send the paging information, wherein i_s satisfies i_s=floor (UE_ID/N) mod Ns, wherein floor (*) represents integer rounding, UE_ID represents an equivalent identifier of the user equipment served by the second base station, N is a minimum value between T and nB, Ns is a maximum value between 1 and nB/T, and mod represents a modulo operation;
• obtaining the subframe for the second base station to send the paging information from stored correspondence between i_s and the subframe according to the calculated i_s;
• and
• calculating according to the nB a paging frame SFN to which the subframe for the second base station to send the paging information belongs, wherein the SFN satisfies SFN mod T=(T/N)×(UE_ID mod N).