# US 10,694,572 B2 · Methods and devices for controlling states of user equipment

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- Number: US 10,694,572 B2
- Document ID: US10694572B2
- Status: Granted
- Kind: B2
- Application number: 15/869,446
- Filed: 2018-01-12
- Published: 2018-07-19
- Granted: 2020-06-23
- Earliest claimed: 2017-01-13
- Assignees: Beijing Xiaomi Mobile Software Co., Ltd.
- Applicants: Beijing Xiaomi Mobile Software Co., Ltd.
- Inventors: Xiaowei Jiang
- Web page: https://patentgrep.com/patent/US10694572B2

## CPC

- H04W 76/27: Transitions between radio resource control [RRC] states
- H04B 7/0417: Feedback systems
- H04B 17/27: for locating or positioning the transmitter
- H04B 17/328: {Reference signal received power [RSRP]; Reference signal received quality [RSRQ]}
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04W 24/02: Arrangements for optimising operational condition
- H04W 36/0027: {for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections}
- H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management
- H04W 64/003: {locating network equipment}
- G06N 20/00: Machine learning
- H04L 1/06: using space diversity
- H04L 1/0612: {Space-time modulation}
- H04L 1/0662: {Limited orthogonality systems}
- H04L 1/0668: {Orthogonal systems, e.g. using Alamouti codes}
- H04W 68/00: User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- 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)
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- 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 method for state control of a user equipment includes: when in an inactive state, sending, a state indication message for indicating that the UE needs to switch to a connection state, to a base station, upon detecting that a preset state switching event is triggered; switching to the connection state according to a state switching instruction returned by the base station. The preset state switching event includes at least one of: a bearer corresponding to traffic data to be sent or received by the UE does not belong to a designated bearer that is a bearer capable of transmitting the service data in the inactive state; a message to be sent by the UE is a NAS message; a data buffer size of the UE exceeds a first threshold; and an RSRP value of a reference signal sent by the base station is less than a second threshold.

## Claims

### Claim 1

A method for controlling states of a user equipment (UE), applied to the UE, the method comprising:
detecting whether a preset state switching event is triggered, wherein the UE is in an inactive state;
sending, a state indication message for indicating that the UE needs to switch to a connection state, to a base station, upon detecting that the preset state switching event is triggered, wherein a state switching instruction for instructing the UE to switch to the connection state is returned by the base station according to the state indication message;
switching from the inactive state to the connection state according to the state switching instruction;
wherein the preset state switching event comprises at least one of the followings:
a bearer corresponding to traffic data to be sent by the UE does not belong to a designated bearer that is a bearer capable of transmitting traffic data in the inactive state;
and
a bearer corresponding to traffic data to be received by the UE does not belong to the designated bearer;
wherein prior to the detecting whether the preset state switching event is triggered, the method further comprises:
receiving an inactive state instruction of the base station, wherein the inactive state instruction comprises configuration information of the designated bearer for indicating a traffic type of traffic data corresponding to the designated bearer;
entering the inactive state according to the inactive state instruction, and storing the configuration information of the designated bearer; and
performing the step of detecting whether the preset state switching event is triggered according to the configuration information of the designated bearer.

### Claim 2 (depends on 1)

The method of claim 1, wherein the preset state switching event comprises that the bearer corresponding to the traffic data to be received by the UE does not belong to the designated bearer, and wherein detecting that whether the preset state switching event is triggered comprises:
upon reception of a first paging message sent by the base station, determining that the preset state switching event is triggered, wherein the first paging message carries state switching information for indicating that the bearer corresponding to the traffic data to be received by the UE does not belong to the designated bearer; and
upon reception of a second paging message sent by the base station, determining whether the bearer corresponding to the traffic data to be received belongs to the designated bearer, according to a traffic type of the traffic data carried in the second paging message; upon determination that the bearer corresponding to the traffic data to be received does not belong to the designated bearer, determining that the preset state switching event is triggered.

### Claim 3 (depends on 1)

The method of claim 1, wherein sending the state indication message to the base station comprises:
generating switching reason information according to the triggered preset state switching event; and
sending the switching reason information carried in the state indication message to the base station, wherein the state switching instruction is returned by the base station according to the switching reason information.

### Claim 4

A user equipment (UE), comprising:
a processor;
a non-transitory storage configured to store processor executable instructions; wherein the instructions cause the processor to:
detect whether a preset state switching event is triggered, wherein the UE is in an inactive state; send, a state indication message for indicating that the UE needs to switch to the connection state, to a base station, upon detecting that the preset state switching event is triggered, wherein a state switching instruction for instructing the UE to switch to the connection state is returned by the base station according to the state indication message; switch from the inactive state to the connection state according to the state switching instruction;
wherein the preset state switching event comprises at least one of the followings:
a bearer corresponding to traffic data to be sent by the UE does not belong to a designated bearer that is a bearer capable of transmitting traffic data in the inactive state;
and
a bearer corresponding to traffic data to be received by the UE does not belong to the designated bearer;
wherein the processor is further configured to: prior to detecting whether the preset state switching event is triggered,
receive an inactive state instruction of the base station, wherein the inactive state instruction comprises configuration information of the designated bearer for indicating a traffic type of traffic data corresponding to the designated bearer;
enter the inactive state according to the inactive state instruction, and storing the configuration information of the designated bearer; and
perform the step of detecting whether the preset state switching event is triggered according to the configuration information of the designated bearer.

### Claim 5 (depends on 4)

The user equipment of claim 4, wherein the preset state switching event comprises that the bearer corresponding to the traffic data to be received by the UE does not belong to the designated bearer, and wherein the processor is further configured to:
upon reception of a first paging message sent by the base station, determine that the preset state switching event is triggered, wherein the first paging message carries state switching information for indicating that the bearer corresponding to the traffic data to be received by the UE does not belong to the designated bearer; and
upon reception of a second paging message sent by the base station, determine whether the bearer corresponding to the traffic data to be received belongs to the designated bearer, according to a traffic type of the traffic data carried in the second paging message; upon determination that the bearer corresponding to the traffic data to be received does not belong to the designated bearer, determine that the preset state switching event is triggered.

### Claim 6 (depends on 4)

The user equipment of claim 4, wherein the processor is further configured to:
generate switching reason information according to the triggered preset state switching event; and
send the switching reason information carried in the state indication message to the base station, wherein the state switching instruction is returned by the base station according to the switching reason information.