Downlink Scheduling

最新推荐文章于 2025-03-31 14:47:37 发布

zero2100

最新推荐文章于 2025-03-31 14:47:37 发布

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Downlink Scheduling

Now let's look into a typical downlink scheduling (i.e, PDSCH scheduling). This process can be illustrated as follows, the process can be summarized as follows.

i) NW (Network) send DCI for PDSCH (PDSCH Grant)

ii) After K0 slots after the DCI, PDSCH is transmitted (K0 can be any value from 0 through 32, but as of Sep 2021, only K0 = 0 seems to be supported).

iii) After k1 slots after the PDSCH is transmitted, UE transmit Ack/Nack via UCI. The UCI can be carried by PUCCH or PUSCH depending on situations. The slot carrying the UCI can be utilized in various different form which can be examplified as Case 1,2,3,4 as shown below).

NOTE : The above illustration shows several typical forms of the UCI slot (the slot carrying the UCI). In this illustration, I just presented only 4 different cases but there can be more cases.