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US 12,114,388 B2Granted
Resume failure report for failed attempt to resume connected state from inactive state
AssigneeKYOCERA Corporation
InventorsHenry Chang, Masato Fujishiro
Life of this patent
Estimating the term…
Abstract
A mobile wireless communication user equipment device (mobile device) logs unsuccessful attempts to resume to the connected (e.g., RRC_CONNECTED) state from the inactive (e.g., RRC_INACTIVE) state. The mobile device maintains the resume failure log that includes the events and parameters related to the failed attempt to resume to the active state, reports the resume failure log availability, and provides the resume failure log when requested by a base station.
Claims18
A mobile wireless communication device comprising:
- a memory;
- a transmitter configured to transmit a resume request to a target base station while the mobile wireless communication device is in an inactive state, the resume request requesting establishment of a connected state, the inactive state comprising connection to a network in a connection management connected (CM_Connected) state without a capability of transmitting or receiving user data between the mobile wireless communication device and the network, the mobile wireless communication device considered to be in the CM_Connected state at least by the mobile wireless communication device and the network when the mobile wireless communication device is in the inactive state, the connected state comprising the capability to transmit and receive user data between the mobile wireless communication device and the network;
- and
- a controller configured to store a resume failure log in the memory, the resume failure log comprising failure log information associated with a failure to establish the connected state from the inactive state.
1 more element
A method performed at a mobile device, the method comprising:
- receiving, from a last serving base station connected to a network, a release to inactive message instructing the mobile device to enter an inactive state, the inactive state comprising a connection between the mobile device and an Access Management Function (AMF) of the network without a capability of transmitting or receiving user data between the mobile wireless communication device and the network, the mobile device considered to be in a connection management connected (CM_Connected) state at least by the mobile device and the network when the mobile device is in the inactive state;
- transmitting, to a target base station, resume request while the mobile device is in the inactive state, the resume request requesting establishment of a connected state, comprising the capability to transmit and receive user data between the mobile device and the network;
- and
- maintaining a resume failure log comprising failure log information associated with a failure to establish the connected state from the inactive state.
1 more element
Dependencies are inferred from the claim text.