Terminal DCI Processing for 5G Multicast Services

The patent applies parameter changes by reinterpreting existing DCI format parameters to serve MBS functions. Specifically, it redefines the purpose of certain DCI fields to indicate MBS-specific operations such as groupcast feedback timing, PTM/PTP switching, and MBS session management. This allows the system to handle MBS with modified parameter interpretations rather than introducing entirely new complex signaling structures.

The patent implements universality by enabling existing DCI formats to serve multiple functions - both traditional unicast scheduling and MBS groupcast scheduling. The same DCI structure is used for different purposes by changing how its fields are interpreted, allowing one signaling mechanism to handle multiple service types without requiring separate dedicated signaling for each function.

The patent introduces an intermediary mechanism in the form of specific DCI field interpretations that act as mediators between the physical layer signaling and higher layer MBS processing. Certain DCI fields serve as intermediaries carrying MBS-specific instructions (such as feedback timing indicators, transmission mode switches) that bridge the gap between raw signal transmission and sophisticated MBS service delivery, maintaining processing clarity through structured intermediate representations.

The patent applies segmentation by dividing MBS processing into distinct operational phases, each triggered by specific DCI field interpretations. The processing is segmented into: (1) DCI reception and MBS identification, (2) Parameter extraction for MBS operations, (3) Execution of specific MBS procedures (feedback, switching, session management). This segmentation maintains clarity by handling complex MBS functionality in discrete, manageable steps rather than monolithic processing.