US 10,374,684 B2 · Transport block retransmission method and base station

Abstract

A transport block retransmission method and a base station are described. In the method, for first m retransmissions of a transmission block (TB), a closed-loop spatial multiplexing transmit manner for initial transmission of the TB is maintained. The method may also include, for last N-m retransmissions of the TB, a transmit manner is changed into an open-loop transmit manner when a transmission mode remains unchanged. Retransmission of the TB in the open-loop transmit manner can improve reliability of data transmission, reduce a quantity of retransmissions of the TB, reduce a residual block error rate and a voice packet loss rate, and ensure that a closed-loop gain can be effectively obtained.

Claims18

Dependent claims

A transport block retransmission method, comprising:

transmitting, by a base station in an initial transmission, a transport block (TB) to user equipment (UE) using closed-loop spatial multiplexing;
when transmission of the TB fails, retransmitting, by the base station, the TB using the closed-loop spatial multiplexing for a first m retransmissions of the TB, wherein m is an integer greater than or equal to 0;
and
for a last N-m retransmissions of the TB, retransmitting, by the base station, the TB using open-loop spatial multiplexing having a transmission mode (TM) to which the closed-loop spatial multiplexing belongs, wherein N is a maximum quantity of retransmissions of the TB and N is an integer greater than or equal to 1.

1 more element

Dependencies are inferred from the claim text.

Transport block retransmission method and base station

Life of this patent

Transport block retransmission method and base station

Life of this patent

Abstract

Claims18