US 11,700,102 B2 · System and method for HARQ feedback in RRC inactive state

Abstract

Systems and methods for transmitting uplink control information, for example ACK/NACK, while in RRC_inactive state, are provided. Uplink control information is transmitted while in RRC_INACTIVE state by transmitting a sequence from a set of possible sequences to convey the uplink control information, the transmitted sequence associated with a value of the uplink control information. The sequence is asynchronously transmitted. Signalling may be used to configure a transmission resource within which to transmit the sequence, wherein the transmission resource has a time duration that is longer than a time duration to transmit the sequence. This has the effect of introducing a gap following sequence transmission that can ensure the sequence transmission does not interfere with a data transmission.

Claims20

Dependent claims

A method comprising:

receiving, by a user equipment (UE), a control message that releases the UE from the RRC_CONNECTED state, the control message comprising configuration information for conveying acknowledgment/negative acknowledgment (ACK/NACK) feedback in an RRC_INACTIVE state;
entering, by the UE, into the RRC_INACTIVE state from RRC_CONNECTED state;
transmitting, by the UE, in accordance with said configuration information,
a symbol sequence from a set of possible symbol sequences to convey the ACK/NACK feedback.

1 more element

Dependencies are inferred from the claim text.

System and method for HARQ feedback in RRC inactive state

Life of this patent

System and method for HARQ feedback in RRC inactive state

Life of this patent

Abstract

Claims20