Question: In 3GPP specifications, what does the notation [TDD - …] indicate about the enclosed text?
Option 1: It applies to both FDD and TDD modes for all chip rates.
Option 2: It applies only to FDD mode with a specific chip rate (e.g., 3.84 Mcps).
Option 3: It applies only to TDD, including all specified chip rates (7.68 Mcps, 3.84 Mcps, and 1.28 Mcps).
Option 4: It is used for common paragraphs that apply to both FDD and TDD modes without specifying chip rates.
Explanation: According to the notation conventions outlined in the specification, [TDD - …] indicates that the enclosed text applies specifically to Time Division Duplexing (TDD) mode, encompassing all mentioned TDD chip rates (7.68 Mcps, 3.84 Mcps, and 1.28 Mcps). This notation allows for the separation of TDD-specific content from both FDD (Frequency Division Duplexing) content and common content applicable to both modes.