Method and apparatus for UL ACK allocation

摘要

Systems and methodologies are described that facilitate allocation of uplink acknowledgement (ACK) resources for a wireless communication system. Various aspects described herein facilitate explicit creation and transmission of a bundled assignment of downlink communication resources and uplink resources for ACK transmission, thereby facilitating overhead-efficient ACK allocation for users that can communicate pursuant to a persistent resource assignment without requiring scheduling information from an associated control channel. Additionally, indexing schemes for uplink ACK resources are provided herein to facilitate ACK allocation for systems in which both scheduled and persistent users can communicate at a common transmission time interval (TTI).

主权项

1. A method for assigning uplink acknowledgement (ACK) resources for a user equipment (UE) in a wireless communication system, comprising:
identifying a UE for which a persistent assignment of communication resources for a plurality of data transmissions is to be established; identifying uplink ACK resources of a shared uplink control channel for use by the identified UE; communicating an explicit assignment of the identified uplink ACK resources via Layer 3 (L3) signaling, or a downlink control channel, or both L3 signaling and the downlink control channel to the identified UE for the persistent assignment of communication resources to the UE, without sending an assignment of uplink ACK resources for each of the plurality of data transmissions pursuant to the persistent assignment, wherein the communicating comprises communicating an uplink ACK index corresponding to the identified uplink ACK resources on the downlink control channel via Layer 2 (L2) signaling; and receiving ACK feedback sent on the uplink ACK resources by the identified UE.