# US 11,310,759 B2 · Method and device for transmitting data and storage medium thereof

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- Number: US 11,310,759 B2
- Document ID: US11310759B2
- Status: Granted
- Kind: B2
- Application number: 17/058,083
- Filed: 2019-05-23
- Published: 2021-07-01
- Granted: 2022-04-19
- Earliest claimed: 2018-05-23
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Xiaoning Ma; Lixiang Xu
- Web page: https://patentgrep.com/patent/US11310759B2

## CPC

- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04W 60/04: using triggered events
- H04W 8/08: Mobility data transfer
- H04W 28/14: using intermediate storage
- H04W 48/18: Selecting a network or a communication service
- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 68/005: {Transmission of information for alerting of incoming communication}
- H04W 68/02: Arrangements for increasing efficiency of notification or paging channel
- H04W 76/27: Transitions between radio resource control [RRC] states
- Y02D 30/70: in wireless communication networks
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

The embodiments of the present disclosure propose a method performed at a first node for transmitting data, comprising: receiving downlink data to be transmitted to a User Equipment (UE) in a non-connected state; and determining whether to buffer the downlink data. The method further comprises: when it is determined that the downlink data is to be buffered, if the first node is a first type of node, determining that a paging procedure is not to be initiated for the UE in the non-connected state, or if the first node is a second type of node, notifying the second node that the downlink data has been buffered, so that the second node determines that the paging procedure is not to be initiated for the UE in the non-connected state. There are further provided a method performed at a second node and corresponding devices and storage media.

## Claims

### Claim 1

A method performed at a third network entity for transmitting data, comprising:
receiving, from a first network entity, a notification indicating that downlink data to be transmitted to a User Equipment (UE) in a non-connected state is buffered on the first network entity; and
transmitting, to a second network entity, a message comprising an information indicating that the downlink data has been buffered on the first network entity.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the second network entity determines not to initiate a paging procedure for the UE in the non-connected state based on the message.

### Claim 3 (depends on 1)

The method according to claim 1, wherein:
the first network entity is a User Plane Functional (UPF) entity,
the second network entity is an Access Mobility management Functional (AMF) entity, and
the third network entity is a Session Management Functional (SMF) entity.

### Claim 4 (depends on 1)

The method according to claim 1, further comprising:
when the UE returns to a connected state, performing a procedure to transmit the buffered data to the UE.

### Claim 5 (depends on 3)

The method according to claim 3, wherein the UE returning to a connected state comprises the UE entering to a new registration area.

### Claim 6 (depends on 4)

The method according to claim 4, wherein the performing the procedure to transmit the buffered data to the UE comprises:
when the UE is allocated to another third network entity, receiving, from the another third network entity, a message comprising an information indicating that a forwarding data channel address of the second network entity.

### Claim 7

A method performed at a second network entity for transmitting data, comprising:
receiving, from a third network entity, a message comprising an information indicating that downlink data to be transmitted to a User Equipment (UE) in a non-connected state is buffered by a first network entity; and
determining, based on the message, not to initiate a paging procedure for the UE in the non-connected state.

### Claim 8 (depends on 7)

The method according to claim 7, wherein:
the first network entity is a User Plane Functional (UPF) entity,
the second network entity is an Access Mobility management Functional (AMF) entity, and
the third network entity is a Session Management Functional (SMF) entity.

### Claim 9 (depends on 7)

The method according to claim 7, further comprising:
when the UE returns to a connected state, performing a procedure to transmit the buffered data to the UE.

### Claim 10

A third network entity in a wireless communication system, the third network entity comprising:
a transceiver; and
at least one processor configured to:
control the transceiver to receive, from a first network entity, a notification indicating that downlink data to be transmitted to a User Equipment (UE) in a non-connected state is buffered on the first network entity, and
control the transceiver to transmit, to a second network entity, a message comprising an information indicating that the downlink data has been buffered on the first network entity.

### Claim 11 (depends on 10)

The third network entity according to claim 10, wherein:
the first network entity is a User Plane Functional (UPF) entity,
the second network entity is an Access Mobility management Functional (AMF) entity, and
the third network entity is a Session Management Functional (SMF) entity.

### Claim 12 (depends on 10)

The third network entity according to claim 10, wherein the at least one processor is further configured to:
when the UE returns to a connected state, perform a procedure to transmit the buffered data to the UE.

### Claim 13 (depends on 12)

The third network entity according to claim 12, wherein the UE returning to a connected state comprises the UE entering to a new registration area.

### Claim 14 (depends on 13)

The third network entity according to claim 13, wherein the at least one processor is configured to:
when the UE is allocated to another third network entity, control the transceiver to receive, from the another third network entity, a message comprising an information indicating that a forwarding data channel address of the second network entity.

### Claim 15

A second network entity in a wireless communication system, the second network entity comprising:
a transceiver; and
at least one processor configured to:
control the transceiver to receive, from a third network entity, a message comprising an information indicating that downlink data to be transmitted to a User Equipment (UE) in a non-connected state is buffered by a first network entity, and
determine, based on the message, not to initiate a paging procedure for the UE in the non-connected state.