APPARATUS AND METHOD FOR CONTROL OF HARQ-ACK CODEBOOK SELECTION FOR WIRELESS COMMUNICATION

Disclosed techniques provide for selection of the codebook type used by a User Equipment (UE) (12), for Hybrid Automatic Repeat reQuest (HARQ) feedback to a wireless communication network (10) in multi-connectivity scenarios. The particular HARQ-ACK codebook type selected for use by the UE (12) depe...

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Bibliographische Detailangaben
Hauptverfasser:	MCHARDY, Geoffrey, YU, Ping, ATAWIA, Ramy
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	Disclosed techniques provide for selection of the codebook type used by a User Equipment (UE) (12), for Hybrid Automatic Repeat reQuest (HARQ) feedback to a wireless communication network (10) in multi-connectivity scenarios. The particular HARQ-ACK codebook type selected for use by the UE (12) depends on a delay associated with transferring HARQ feedback received from the UE (12) for a secondary cell (34) to the processing entity (42) that is responsible for downlink transmission control in the secondary cell (34). For example, the HARQ feedback is received via a first or primary cell (34) and then transferred from there to a radio network node or other geographically-remote circuitry that performs the downlink transmission control for the secondary cell (34).