If only one CSI report, then use the corresponding PUCCH resource to send CSI.
Disposed in the corresponding PUCCH resource reportConfigType , since the CSI-ReportConfig is independent BWP arranged outside, and therefore PUCCH-CSI-Resource respectively indicate different PUCCH-ResourceId in the BWP.
If there are multiple CSI report, you can use the Multi-CSI-PUCCH-resourceList , but also depends on whether the scene to send CSI report.
If only one PUCCH resource set, then the time PUCHC resource set only for resources inside the feedback HARQ-ACK, should not be configured simultaneousHARQ-ACK-CSI.
PUCCH format 2, PUCCH format 3, PUCCH format 4 will be arranged at a maximum bit rate maxCodeRate.
The following distinction transmitting HARQ-ACK, SR, CSI scene process will be described.
Scene One: If there is one or more CSI report, and / or HARQ-ACK / transmit the SR bit, if HARQ-ACK, the HARQ-ACK for scheduling a PDSCH without DCI HARQ-ACK feedback.
Under conditions of a scene, the following condition is satisfied if a Select PUCCH Resource in multi-CSI-PUCCH-ResourceList in.
Condition a: There are overlapping and if the CSI configured multi-CSI-PUCCH-ResourceList
In the multi-CSI-PUCCHResourceList selection resource transmitting HARQ-ACK / SR / CSI in. Overall, the number of selected resources in accordance with the number of bits transmitted bits can carry resources.
Select several steps, analogous to the containers put things.
1. First calculate the total number of UCI bits to be transmitted - calculating the size of the article to be contained in the container.
2. Calculate the size of the container - the total number of bits is calculated Resource PUCCH resource can carry, according to the number of PUCCH symbols, RB number, modulation scheme, code rate calculation.
The actual rate will be appreciated that utilization of a container, such as Code rate r below the figure, if it is 0.08, if the volume of the container V, the actual installed only 0.08V big thing, it is easy to go into this thing, for the comparison after such processed data to the network, the network side can correctly receive the UE greater probability of transmitting data. If 0.8V (more transmission of information), then something more loaded, the network side can compared the probability of correctly receiving a smaller front. Efficiency and accuracy can not have both.
Analogy diagram below. If you want to put something greater than the maximum vessel, then in the above HARQ-ACK / SR / CSI scene, only to cram a.
In other cases other than a condition of a scene, referring to the process in 38.213 section 9.2.5. Behind will continue to study summarizes this chapter.
Scene 2: If the HARQ-ACK, SR transmission, wideband / sub-band CSI reports 2 or if the transmitting HARQ-ACK, SR transmitting wideband CSI reports PUCCH format 3 or transmitted using PUCCH format 4 using PUCCH format.
Then use the HARQ-ACK feedback PUCCH resource indicator field corresponding to the last downlink window, the DCI to select a resource selection method ResourceSet selection method with the 'bit HARQ-ACK.
Representative following cylinder HARQ-ACK, SR et al., Noted that the size of the actual number of bits does not represent much.
In a scenario of two conditions, a first select the smallest RB PUCCH resource selection, so that it can accommodate the transmitted information.
If the number has reached RB PUCCH resource configured fit also, it is necessary to discard part of CSI-Part I.
Scene three: If HARQ-ACK, SR transmission, sub-band CSI reports transmitted using PUCCH format 3/4.
Then use the HARQ-ACK feedback PUCCH resource indicator field corresponding to the last downlink window, the DCI to select a resource selection method with the ResourceSet xxx.
First, select a minimum RB in selected PUCCH resource, so that it can accommodate the transmitted information.
If the number has reached RB PUCCH resource configured fit also, it is necessary to try the disposable portion CSI-Part II.
If you drop all CSI-Part II still is not satisfied, then continue to try to discard CSI Part I.
For the concept of CSI part I and CSI part II, that still has much to learn some ......
