9.6 Additional requirements for carrier aggregation

36.521-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Part 1: Conformance testingRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification

This clause includes requirements for the reporting of channel state information (CSI) with the UE configured for carrier aggregation. The purpose is to verify that the channel state for each cell is correctly reported with multiple cells configured for periodic reporting.

Unless otherwise stated, the logical carriers PCC / SCC are mapped on physical frequencies as defined in Table 9.6-1.

Table 9.6-1: PCC/SCCs frequency mapping

CA Configuration

PCC-SCC mapping


Intra-band CA



Inter-band CA (CA_x-y)

Bx-By (if not supported by the UE, then By-Bx)


Note 1: Notation CCi-CCj means PCC on component carrier CCi and SCC on component carrier CCj, with CCi/j frequencies defined in the corresponding intra-band contiguous / non-contiguous CA band in TS 36.508.

Note 2: Notation Bi–Bj means PCC on component Band i and SCC on component Band j, with single Band i/j frequencies defined in TS 36.508.