# US 2026/0101404 A1 · Enhanced UE Processing Logic of RRC Reconfiguration

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- Number: US 2026/0101404 A1
- Document ID: US20260101404A1
- Status: Published application
- Kind: A1
- Application number: 19/103,985
- Filed: 2022-08-17
- Published: 2026-04-09
- Earliest claimed: 2022-08-17
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Zhiwei WANG; Fangli XU; Junzhen QIN; Lijie ZHANG; Shuang WANG; Yuqin CHEN
- Web page: https://patentgrep.com/patent/US20260101404A1

## CPC

- H04W 36/305: {Handover due to radio link failure (control signalling for hand-off failure H04W36/0079)}
- H04W 76/20: Manipulation of established connections
- H04W 76/19: Connection re-establishment
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A user equipment configured to receive a first Radio Resource Control (RRC) Reconfiguration message comprising a full configuration from a currently camped cell, transmit a RRC Reconfiguration Complete message to the currently camped cell, receive, prior to sending the RRC Reconfiguration Complete message, a second RRC Reconfiguration message and ignore the second RRC Reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.

## Claims

### Claim 1

A processor of user equipment configured to:
receive a first Radio Resource Control (RRC) Reconfiguration message comprising a full configuration from a currently camped cell;
transmit a RRC Reconfiguration Complete message to the currently camped cell;
receive, prior to sending the RRC Reconfiguration Complete message, a second RRC Reconfiguration message; and
ignore the second RRC Reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.

### Claim 2 (depends on 1)

The processor of claim 1, further configured to:
process the full configuration in the first RRC Reconfiguration message prior to sending the RRC Reconfiguration Complete message.

### Claim 3 (depends on 2)

The processor of claim 2, wherein the full configuration resets a radio link control (RLC) signaling radio bearer (SRB) for a secondary node (SN).

### Claim 4 (depends on 1)

The processor of claim 1, further configured to:
receive, prior to sending the RRC Reconfiguration Complete message, a third RRC Reconfiguration message; and
ignore the third RRC Reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.

### Claim 5

A user equipment (UE), comprising:
a transceiver configured to communicate with a currently camped cell; and
a processor configured to:
receive a first Radio Resource Control (RRC) Reconfiguration message comprising a full configuration from the currently camped cell;
transmit a RRC Reconfiguration Complete message to the currently camped cell;
receive, prior to sending the RRC Reconfiguration Complete message, a second RRC Reconfiguration message; and
ignore the second RRC Reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.

### Claim 6 (depends on 5)

The UE of claim 5, further configured to:
process the full configuration in the first RRC Reconfiguration message prior to sending the RRC Reconfiguration Complete message.

### Claim 7 (depends on 6)

The UE of claim 6, wherein the full configuration resets a radio link control (RLC) signaling radio bearer (SRB) for a secondary node (SN).

### Claim 8 (depends on 5)

The UE of claim 5, further configured to:
receive, prior to sending the RRC Reconfiguration Complete message, a third RRC Reconfiguration message; and
ignore the third RRC Reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.

### Claim 9

A processor of a user equipment (UE), configured to:
receive a first Radio Resource Control (RRC) Resume message comprising a full configuration from a currently camped cell;
transmit a RRC Reconfiguration Complete message to the currently camped cell;
receive, prior to sending the RRC Reconfiguration Complete message, an RRC reconfiguration message; and
ignore the RRC reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.

### Claim 10 (depends on 9)

The processor of claim 9, further configured to:
process the full configuration in the RRC Resume message prior to sending the RRC Reconfiguration Complete message.

### Claim 11 (depends on 10)

The processor of claim 10, wherein the full configuration resets a radio link control (RLC) signaling radio bearer (SRB) for a Secondary node (SN).

### Claim 12 (depends on 9)

The processor of claim 9, further configured to:
receive, prior to sending the RRC Reconfiguration Complete message, a second RRC reconfiguration message; and
ignore the second RRC Reconfiguration message received from the currently camped cell that was received prior to sending the RRC Reconfiguration Complete message.