Patent ID: 9172449
Filing Date: 2015-10-27
Classification: H04B

Abstract:
1. A method in a transmitter for transmitting at least a first data burst and a second data burst to a receiver in a system, wherein the system is an Enhanced General Packet Radio Service/Enhanced General Packet Radio Service 2, EGPRS/EGRPS2, system, wherein the system applies closed loop codebook-based precoding Multiple Input Multiple Output, MIMO, and wherein the transmitter comprises at least a first transmission, Tx, antenna and a second Tx antenna, the method comprising: transmitting, to the receiver, the first data burst through the first Tx antenna and the second data burst through the second Tx antenna, wherein the first data burst comprises a first training sequence and the second data burst comprises a second training sequence when the first data burst and the second data burst are non-precoded, and wherein the first data burst comprises a third training sequence and the second data burst comprises a fourth training sequence when the first data burst and the second data burst are precoded.