A kind of pmch transmission method and equipment
A transmission method and a technology for transmitting subframes, which are applied in transmission systems, digital transmission systems, and multiple uses of transmission paths, and can solve problems such as inability to support MBMS transmission and reduce transmission efficiency
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Embodiment 1
[0054] like image 3 As indicated, the process may include:
[0055] Step 301: The base station sends PMCH subframe configuration signaling to the UE, the configuration signaling indicates the PMCH transmission subframe; wherein, the PMCH transmission subframe includes a first time slot and a second time slot, and the first time slot is used for transmission PMCH, the second time slot is used to transmit unicast channel or / and signal.
[0056] Step 302: the base station sends a PMCH subframe to the UE.
[0057] Specifically, the base station maps the EPDCCH to the first time slot of the subframe for transmission, and maps the PMCH to the second time slot of the subframe for transmission, so that the EPDCCH and PMCH are time-division multiplexed and transmitted in the subframe, further Yes, in the time slot for transmitting EPDCCH, EPDCCH and PDSCH are transmitted by frequency division multiplexing.
[0058] like Figure 4 As shown in , EPDCCH and PDSCH use the first time s...
Embodiment 2
[0062] The flow of this embodiment is the same as that of Embodiment 1, but the transmission positions of PMCH and EPDCCH are different, specifically:
[0063] like Figure 5 As shown in , the PMCH uses the first slot of the subframe for transmission, and the PMCH demodulation pilot is mapped according to the mapping method of the existing MBSFN pilot in the second slot, and mapped to the first slot of the current slot. On the first and fifth OFDM symbols, when calculating the TB size of the PMCH, the corresponding number of PRBs is: the number of PRBs corresponding to the downlink bandwidth multiplied by a coefficient of 0.6.
[0064] EPDCCH / PDSCH (ie EPDCCH, or EPDCCH and PDSCH) is transmitted in the second slot of the subframe, and the DMRS structure in this slot uses the DMRS in the second slot of the ordinary subframe under the extended CP structure, if there is PDSCH transmission, when calculating the TB size of PDSCH, let the corresponding number of PRBs be: the number...
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