Content for TR 38.899 Word version: 18.0.0

3.1 Terms 3.2 Symbols 3.3 Abbreviations 4.1 TR Maintenance
...

1 Scope p. 19

The present document is a technical report for high power UE for NR inter-band Carrier Aggregation or Dual Connection and NR SUL band combinations with y (1 < y ≤ 6) bands downlink and x (x = 1, 2) bands uplink under Rel-18 time-frame. The purpose is to gather the relevant background information and studies in order to complete the band-combination specific requirements for the newly requested band combinations for power class 2 and power class 1.5 UE. Table 1-1 lists the three types of band combinations covered by this TR.

Table 1-1: High power UE inter-band CA/DC and SUL band combinations

#	Band combination	Power class for uplink
1	Power class 2 NR Inter-band CA/DC for y bands DL with x bands UL (x=1, 2)	1UL(TDD): PC2 on TDD band 2UL (FDD+TDD, TDD+FDD, TDD+TDD): PC3 on FDD band, PC2 or PC3 on TDD band
2	Power class 1.5 NR Inter-band CA for y bands DL with 1 band UL	1UL (TDD): PC1.5 on TDD band
3	Power class 2 SUL band combinations with or without CA for y bands DL with 2 bands UL	SUL: PC3 on SUL band NUL(TDD): PC2 on TDD band NUL = Normal Uplink in contrast to SUL.

2 References p. 19

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1]

TR 21.905: "Vocabulary for 3GPP Specifications".

[2]

3GPP RP-222623: "New WID: High power UE for FR1 NR inter-band CA/DC or NR SUL (supplementary uplink) band combination with y bands downlink (1<y<=6) and x bands uplink (x=1,2) and power class m (m<3) and high power on TDD band(s)".

[3]

TS 38.101-1: "NR; User Equipment (UE) radio transmission and reception; Part 1: Range 1 Standalone".

[4]

TR 37.865-01-01: "NR Carrier Aggregation for intra-band (m Down Link (DL) / 1 Up Link (UL) bands) and inter-band (n Down Link (DL) / 1 Up Link (UL) bands)".

[5]

TR 38.717-02-01: V17.0.0 "Rel-17 NR inter-band Carrier Aggregation/Dual connectivity for 2 bands DL with x bands UL (x=1, 2) (Release 17)".

[6]

TR 38.716-02-00: V16.0.0 "NR inter-band Carrier Aggregation/Dual connectivity for 2 bands DL with x bands UL (x=1, 2) (Release 16)".

[7]

R4-2321924 AdHoc report [109][104] NR_Baskets_Part_1, RAN4#109.

3 Definitions of terms, symbols and abbreviations p. 20

3.1 Terms p. 20

For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.

3.2 Symbols p. 20

For the purposes of the present document, the following symbols apply:

ΔR_IB,c

Allowed reference sensitivity relaxation due to support for inter-band CA operation, for serving cell c.

ΔT_B,cI

Allowed maximum configured output power relaxation due to support for inter-band CA operation, for serving cell c.

3.3 Abbreviations p. 20

For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.

Base Station

BCS

Bandwidth Combination Set

Carrier Aggregation

Component Carriers

Dual Connectivity

Downlink

FDD

Frequency Division Duplex

MPR

Allowed maximum power reduction

MSD

Maximum Sensitivity Degradation

REFSENS

Reference Sensitivity power level

SCS

Subcarrier spacing

TDD

Time Division Duplex

User Equipment

Uplink

4 Background p. 20

At 3GPP RAN4#97-e meeting, a basket Work Item on "High power UE for FR1 NR inter-band CA/DC or NR SUL (supplementary uplink) band combination with y bands downlink (1 < y ≤ 6) and x bands uplink (x = 1,2) and power class m (m < 3) and high power on TDD band(s)" [2] was approved for Rel-18. The objectives of the core part are as follows:

Specify the band-combination specific RF requirements for all listed band combinations as defined in attached excel file of this WI.

The requirements that need to analyse and specify include

Maximum output power.
Analysing combinations that have self-desensitization, applicable ΔTIB, c and ΔRIB, c and reference sensitivity exceptions including MSD test cases.
Other additional impact to the requirements due to the high power on UL, if necessary.

The present document is a technical report for this basket Work Item.

4.1 TR Maintenance p. 21

A single company is responsible for introducing all approved TPs in the current TR, i.e. TR editor. However, it is the responsibility of the contact person of each band/band combination to ensure that the TPs related to the band/band combination have been implemented.