Demodulation reference signal mode notifying method in long-term evolution system
A technology for demodulating reference signals and long-term evolution systems, applied in the field of 3GPP LTE systems, can solve problems such as no solutions, and achieve the effect of improving self-adaptive capabilities
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[0021] Such as image 3 As shown, the specific steps of the notification method of the demodulation reference signal mode are as follows:
[0022] Step 301, when the base station needs to notify the demodulation reference signal mode to the terminal, the base station sets the demodulation reference signal mode of the terminal in the L1 / L2 (physical layer / data link layer) control channel and sends the L1 / L2 control channel information to terminal;
[0023] In the 3GPP system, there are 8 or 9 symbol blocks (SB) in the uplink subframe, and the positions of the symbol blocks used in the demodulation reference signal mode are generally fixed. When the demodulation reference signal mode uses one symbol block, the terminal uses a symbol block in the middle of the uplink subframe to send data on the uplink channel; when the demodulation reference signal mode uses two symbol blocks, the terminal uses a symbol in the middle of the uplink subframe block and the first symbol block to s...
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