# US 12,015,994 B2 · Paging false alarm mitigation at a user equipment

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- Number: US 12,015,994 B2
- Document ID: US12015994B2
- Status: Granted
- Kind: B2
- Application number: 17/593,678
- Filed: 2020-07-21
- Published: 2022-09-29
- Granted: 2024-06-18
- Earliest claimed: 2020-07-21
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Fangli Xu; Dawei Zhang; Haijing Hu; Murtaza A. Shikari; Sarma V. Vangala; Sethuraman Gurumoorthy; Srirang A. Lovlekar; Wei Zeng; Yuchul Kim; Yuqin Chen; Zhibin Wu
- Web page: https://patentgrep.com/patent/US12015994B2

## CPC

- H04W 68/02: Arrangements for increasing efficiency of notification or paging channel
- H04W 68/06: using multi-step notification by changing the notification area
- H04W 76/27: Transitions between radio resource control [RRC] states
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A user equipment (UE) operates in a network. The UE receives, from the network, a paging area comprising a plurality of cells of the network. When the UE is in one of a radio resource control (RRC) inactive state or RRC idle state with respect to the network, the UE transmits a message to a first cell of the paging area based on the UE moving into a first coverage area of the first cell from a second coverage area of a second cell of the paging area. The UE then monitors the first cell for a page from the network.

## Claims

### Claim 1

A method, comprising:
at a user equipment (UE) operating in a network:
receiving, from the network, a paging area comprising a plurality of cells of the network;
when the UE is in one of a radio resource control (RRC) inactive state or RRC idle state with respect to the network, transmitting a message to a first cell of the paging area based on the UE moving into a first coverage area of the first cell from a second coverage area of a second cell of the paging area, wherein the message is transmitted by the UE for every predetermined number of cell coverage area changes; and
monitoring the first cell for a page from the network.

### Claim 2 (depends on 1)

The method of claim 1, wherein the message is transmitted by the UE each time the UE moves to a coverage area of a different cell.

### Claim 3 (depends on 1)

The method of claim 1, wherein the predetermined number is configured by the network.

### Claim 4 (depends on 1)

The method of claim 1, wherein the message comprises one of a UE-specific scheduling request (SR) or a UE-triggered random access channel (RACH) procedure.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
receiving an RRC message comprising the predetermined number of cell coverage area changes.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
receiving a non-access stratum (NAS) message comprising the predetermined number of cell coverage area changes.

### Claim 7 (depends on 1)

The method of claim 1, wherein the predetermined number of cell coverage area changes is 2.

### Claim 8

A user equipment (UE), comprising:
a transceiver; and
a processor configured to:
receive, from a network, a paging area comprising a plurality of cells of the network;
when the UE is in one of a radio resource control (RRC) inactive state or RRC idle state with respect to the network, generate a message to be transmitted a first cell of the paging area based on the UE moving into a first coverage area of the first cell from a second coverage area of a second cell of the paging area, wherein the message is transmitted by the UE for every predetermined number of cell coverage area changes,
wherein the transceiver transmits the message to the first cell.

### Claim 9 (depends on 8)

The UE of claim 8, wherein the message is transmitted by the UE each time the UE moves to a coverage area of a different cell.

### Claim 10 (depends on 8)

The UE of claim 8, wherein the predetermined number is configured by the network.

### Claim 11 (depends on 8)

The UE of claim 8, wherein the message comprises one of a UE-specific scheduling request (SR) or a UE-triggered random access channel (RACH) procedure.

### Claim 12 (depends on 8)

The UE of claim 8, further comprising:
receiving an RRC message comprising the predetermined number of cell coverage area changes.

### Claim 13 (depends on 8)

The UE of claim 8, further comprising:
receiving a non-access stratum (NAS) message comprising the predetermined number of cell coverage area changes.

### Claim 14 (depends on 8)

The UE of claim 8, wherein the predetermined number of cell coverage area changes is 2.

### Claim 15

A user equipment (UE), comprising:
a transceiver configured to connect to one or more cells of a network; and
a processor configured to:
generate, when the UE is in a radio resource control (RRC) connected state with the network, a message including a mobility state of the UE, wherein the mobility state comprises one of a moving state or a stationary state;
when the mobility state comprises the moving state, generate movement information for the UE that is transmitted to the network, wherein the movement information comprises a projected path of the UE;
transition the UE to one of a RRC Inactive state or an RRC Idle state with respect to the network; and
monitoring one or more cells of the network for a page.

### Claim 16 (depends on 15)

The UE of claim 15, wherein the message is transmitted as part of one of an access stratum (AS) procedure or a non-access stratum (NAS) procedure.