Tech-invite  3GPPspace  IETFspace
21  22  23  24  25  26  27  28  29  31  32  33  34  35  36  37  38  4‑5x

Content for  TR 38.877  Word version:  18.1.0

Top   Top   Up   Prev   Next
1…   4…   5…   5.2.2…   5.2.3   5.3…   5.3.3   5.3.4   5.3.5   5.4   6…   7… 
6 Study on RF requirements  6.1 Definition of FR2 multi-band BS  6.2 Re-using FR1 multi-band methods  6.3 Re-using FR1 exceptions  6.4 FR2-1 specific multi-band requirements 

 

6  Study on RF requirements  p. 31

6.1  Definition of FR2 multi-band BS  p. 31

The existing definitions of single-band RIB and multi-band RIB for FR1 defined in TS 38.104 are shown as below:
  • multi-band RIB: operating band specific RIB associated with a transmitter or receiver that is characterized by the ability to process two or more carriers in common active RF components simultaneously, where at least one carrier is configured at a different operating band than the other carrier(s) and where this different operating band is not a sub-band or superseding-band of another supported operating band.
  • single-band RIB: operating band specific RIB supporting operation either in a single operating band only, or in multiple operating bands but does not meet the conditions for a multi-band RIB.
From definition of multi-band RIB for FR1, the transmitter or receiver of multi-band RIB dependent BS have the capability to process two or more carriers from the different bands in common active RF components simultaneously. For FR2-1, the existing multi-band RIB definition for FR1 can be reused.
As the same with FR1, the existing explanations on BS capable of supporting operation in multiple operating bands in TS 38.104 for FR1 are sufficient. The same descriptions can be applied to FR2-1, i.e.
  • BS type 2-O may be capable of supporting operation in multiple operating bands with one of the following implementations at the radiated interface boundary:
    • All RIBs are single-band RIBs.
    • All RIBs are multi-band RIBs.
    • A combination of single-band RIBs and multi-band RIBs provides support of the BS type 2-O capability of operation in multiple operating bands.
Up

6.2  Re-using FR1 multi-band methods  p. 32

On requirements of FR2-1 multi-band BS, the followings are agreed:
  • Existing definitions of Inter RF Bandwidth gap and Base Station RF Bandwidth for FR1 multi-band operation can be reused for FR2-1 multi-band operation.
  • The existing method for requirement for FR1 multi-band operation can be reused for that for FR2-1 multi-band operation.
The impacts on requirements of FR2-1 multi-band BS in TS 38.104 are summarized in Table 6.2-1.
OTA Clause Requirement Impacts
9.5.2Transmitter OFF powerExisting BS type 2-O requirements can be applied.
9.7.3.3ACLRSpecify ACLR and CACLR requirements inside the Inter RF Bandwidth gap for a BS type 2-O multi-band RIB.
9.7.4.3OBUESpecify cumulative OBUE limits the Inter RF Bandwidth gap for a BS type 2-O multi-band RIB.
9.7.5.3Transmitter spurious emissionsApply BS type 2-O requirements with the same BS type 1-O multi-band RIB exceptions to BS type 2-O multi-band RIB.
9.8.2Transmitter intermodulationNo transmitter intermodulation requirement for BS type 2-O.
10.5.1.3ACSSpecify ACS requirements the Inter RF Bandwidth gap for a BS type 2-O multi-band RIB.
10.5.2.3In-band blockingSpecify in-band blocking requirements the Inter RF Bandwidth gap for a BS type 2-O multi-band RIB.
10.6.3Out-of-band blockingApply BS type 2-O requirements with the same BS type 1-O multi-band RIB exceptions to BS type 2-O multi-band RIB.
10.7.3Receiver spurious emissionsApply BS type 2-O requirements with the same BS type 1-O multi-band RIB exceptions to BS type 2-O multi-band RIB.
10.8.3Receiver IntermodulationSpecify receiver intermodulation requirements the Inter RF Bandwidth gap for a BS type 2-O multi-band RIB.
Up

6.3  Re-using FR1 exceptions  p. 32

On requirement exceptions of FR2-1 multi-band BS, the followings are agreed:
  • The FR1 exceptions for spurious emissions, RX spurious emissions and out of band blocking could be applied in FR2-1, as well as all other multi-band considerations made for FR1 for transmit ON/OFF power, operating band unwanted emissions, transmitter/receiver intermodulation, in-band selectivity and blocking.
OTA Clause Requirement Impacts
9.7.5.3Transmitter spurious emissionsApply the same BS type 1-O multi-band RIB exceptions to BS type 2-O multi-band RIB.
10.6.3Out-of-band blockingApply the same BS type 1-O multi-band RIB exceptions to BS type 2-O multi-band RIB.
10.7.3Receiver spurious emissionsApply the same BS type 1-O multi-band RIB exceptions to BS type 2-O multi-band RIB.
Up

6.4  FR2-1 specific multi-band requirements  p. 33

FR2-1 specific multi-band requirements refer to requirements specific to FR2-1 compared to those currently applied to FR1. It was agreed that this study focuses on the multi-band RIB within the same frequency group meanwhile the study on multi-band RIB across different frequency groups not precluded. With this agreement, together with the agreements on re-using FR1 multi-band methods and exceptions, there is currently no need for new FR2-1 specific multi-band requirements as the current FR1 multi-band methods and exceptions can be applied to FR2-1 and are sufficient for FR2-1 multi-band RIB for all band combinations within the same frequency group. For multi-band RIB for band combinations across different frequency groups, the current FR1 multi-band methods and exceptions can also be applied, while FR2-1 specific multi-band requirements may be considered in the future taking into account the implementation challenges.
Up

Up   Top   ToC