Content for TR 38.850 Word version: 18.0.0

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1 Scope p. 9

The present document is a technical report for Rel-18 High power UE (power class 2) for FR1 NR FDD band in UL of NR inter-band CA/DC combinations with y bands downlink (y=2,3,4,5,6) and x bands uplink (x=1) 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.

2 References p. 9

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]

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

3 Definitions of terms, symbols and abbreviations p. 9

3.1 Terms p. 9

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. 9

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

3.3 Abbreviations p. 9

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.

Downlink

FDD

Frequency Division Duplex

MPR

Allowed maximum power reduction

MSD

Maximum Sensitivity Degradation

REFSENS

Reference Sensitivity power level

User Equipment

Uplink

4 Background p. 10

At 3GPP RAN4#97-e meeting, a basket Work Item on "Rel-18 High power UE (power class 2) for FR1 NR FDD band in UL of NR inter-band CA/DC combinations with y bands downlink (y=2,3,4,5,6) and x bands uplink (x=1)" was approved for Rel-18. The objectives of the core part are as follows:

The objectives of the core part are as follows:

Specify the band-combination specific RF requirements for cases in the table below, including
1. Maximum output power and Tx power tolerance.
2. Self-desensitization, applicable ΔTIB, c and ΔRIB, c and reference sensitivity exceptions including MSD test cases.
3. Other additional impact on the requirements, if identified.

4.1 TR Maintenance p. 10

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.