US 2023/0156815 A1 · USER EQUIPMENT DIRECT TRANSMISSION WHILE INACTIVE

Abstract

Systems, methods, and circuitries are provided for direct transmission of uplink data by an INACTIVE UE using a contention free random access (CFRA) process. In one example, a method, includes, receiving, from a network, configuration of a dedicated physical random access channel (PRACH) resource or a dedicated preamble resource (dedicated PRACH/preamble resource); and while in a radio resource control (RRC) INACTIVE state, without entering an RRC CONNECTED state, using a contention-free random access (CFRA) process to transmit uplink data to a base station using the dedicated PRACH/preamble resource.

Claims23

Dependent claims

An apparatus, comprising one or more processors configured to:

receive, from a network, configuration of a dedicated physical random access channel (PRACH) resource or a dedicated preamble resource (dedicated PRACH/preamble resource);
and
while in a radio resource control (RRC) INACTIVE state, without entering an RRC CONNECTED state, use a contention-free random access (CFRA) process to transmit uplink data to a base station using the dedicated PRACH/preamble resource.

Dependencies are inferred from the claim text.

Facts

Application

17/441,326Filed 6 Aug 2020

Published

18 May 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 74/0841
Random access procedures, e.g. with 4-step access: with collision treatment
H04W 74/04
Wireless channel access: scheduled access
H04W 74/0838
Random access procedures, e.g. with 4-step access: using contention-free random access [CFRA]
H04W 76/20
Connection management: manipulation of established connections

User equipment direct transmission while inactive

Life of this patent

User equipment direct transmission while inactive

Life of this patent

Abstract

Claims23