CN116648965A

CN116648965A - RRC state conversion method and device and terminal equipment

Info

Publication number: CN116648965A
Application number: CN202080105095.7A
Authority: CN
Inventors: 王淑坤
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2023-08-25
Also published as: WO2022094810A1

Abstract

The embodiment of the application provides a method and a device for switching RRC states, and terminal equipment, wherein the method comprises the following steps: after receiving the paging message sent by the first network, the terminal equipment enters an RRC idle state or is kept in an RRC inactive state; the first network is a network corresponding to a first communication card of the terminal equipment; the paging message carries the I-RNTI of the terminal equipment.

Description

RRC state conversion method and device and terminal equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a method and a device for switching radio resource control (Radio Resource Control, RRC) states and terminal equipment.

Background

A double-card mobile phone means that one mobile phone can simultaneously hold two communication cards. Currently, if one communication card in a dual-card mobile phone is in service, the other communication card needs to perform service, for example, the other communication card receives the service that the paging needs to be received, how to process the paging is a problem to be solved.

Currently, for a communication card (hereinafter also referred to as a terminal device) in an RRC inactive state, if a radio access Network (Radio Access Network, RAN) issues a RAN-level page (RAN-level page), but the terminal device does not respond to the page, the RAN notifies a Core Network (CN) to trigger a CN-level page (CN-level page), at this time, the Network side releases the RRC inactive context of the terminal device, and the terminal device in the RRC inactive state enters an RRC idle state after receiving the CN-level page. Because the paging in this way triggers the CN-level paging, a complex interaction flow between the access network and the core network is brought, and the RRC state of the terminal device cannot be managed efficiently.

Disclosure of Invention

The embodiment of the application provides a method and a device for RRC state transition and terminal equipment.

The method for switching the RRC state provided by the embodiment of the application comprises the following steps:

after receiving the paging message sent by the first network, the terminal equipment enters an RRC idle state or is kept in an RRC inactive state;

the first network is a network corresponding to a first communication card of the terminal equipment; the paging message carries an Inactive radio network temporary identity (I-RNTI) of the terminal device.

The device for switching the RRC state provided by the embodiment of the application is applied to the terminal equipment and comprises the following components:

a receiving unit, configured to receive a paging message sent by a first network;

the processing unit is used for entering an RRC idle state or keeping in an RRC inactive state after the receiving unit receives the paging message sent by the first network;

the first network is a network corresponding to a first communication card of the terminal equipment; the paging message carries the I-RNTI of the terminal equipment.

The terminal equipment provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method for switching the RRC state.

The chip provided by the embodiment of the application is used for realizing the method for switching the RRC state.

Specifically, the chip includes: and a processor for calling and running the computer program from the memory, so that the device mounted with the chip executes the method of the RRC state transition.

The computer readable storage medium provided by the embodiment of the application is used for storing a computer program, and the computer program enables a computer to execute the method for switching the RRC state.

The computer program product provided by the embodiment of the application comprises computer program instructions, wherein the computer program instructions enable a computer to execute the method for switching the RRC state.

The computer program provided by the embodiment of the application, when running on a computer, causes the computer to execute the method for switching the RRC state.

According to the technical scheme of the embodiment of the application, the RRC state of the terminal equipment after the terminal equipment receives the paging message sent by the network corresponding to the first communication card is clarified, so that the RRC state of the terminal equipment can be clarified without intervention of a core network, the interaction flow of a network side is saved, and the RRC state of the terminal equipment is managed more efficiently on the other hand.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a flowchart of a method for RRC state transition according to an embodiment of the present application;

fig. 3 is a schematic diagram of a dual communication card according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an apparatus for RRC state transition according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 6 is a schematic block diagram of a chip of an embodiment of the application;

fig. 7 is a schematic block diagram of a communication system provided in an embodiment of the present application.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), systems, 5G communication systems, future communication systems, or the like.

An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Alternatively, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in the LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system, etc.

The communication system 100 further includes at least one terminal 120 located within the coverage area of the network device 110. "terminal" as used herein includes, but is not limited to, connection via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Alternatively, direct to Device (D2D) communication may be performed between the terminals 120.

Alternatively, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 illustrates one network device and two terminals, alternatively, the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within its coverage area, which is not limited by the embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.

It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 with communication functions, where the network device 110 and the terminal 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the technical solutions related to the embodiments of the present application.

With the pursuit of speed, delay, high speed mobility, energy efficiency and diversity and complexity of future life business, the third generation partnership project (3 ^rd Generation Partnership Project,3 GPP) international standards organization began developing 5G. The main application scenario of 5G is: enhanced mobile Ultra-wideband (enhanced Mobile Broadband, emmbb), low latency high reliability communication (URLLC), large-scale Machine-based communication (mctc).

On the one hand, embbs still target users to obtain multimedia content, services and data, and their demand is growing very rapidly. On the other hand, since an eMBB may be deployed in different scenarios, such as indoors, urban, rural, etc., its capabilities and requirements are also quite different, so that detailed analysis must be performed in connection with a specific deployment scenario, not in general. Typical applications of URLLC include: industrial automation, electric power automation, remote medical operation (surgery), traffic safety guarantee and the like. Typical characteristics of mctc include: high connection density, small data volume, delay insensitive traffic, low cost and long service life of the module, etc.

RRC state

5G for the purposes of reducing air interface signaling and fast recovery of radio connections, fast recovery of data traffic, a new radio resource control (Radio Resource Control, RRC) state, namely an RRC INACTIVE (RRC_INACTIVE) state, is defined. This state is different from the RRC IDLE (rrc_idle) state and the RRC ACTIVE (rrc_active) state. Wherein,

1) Rrc_idle state (simply referred to as IDLE state): mobility is cell selection reselection based on terminal equipment, paging is initiated by a Core Network (CN), and paging areas are configured by the CN. The base station side has no terminal equipment context and no RRC connection.

2) Rrc_connected state (CONNECTED state for short): there is an RRC connection and there is a terminal device context at the base station side and the terminal device side. The network side knows that the location of the terminal device is cell specific. Mobility is network-side controlled mobility. Unicast data may be transmitted between the terminal device and the base station.

3) Rrc_inactive state (simply referred to as INACTIVE state): mobility is cell selection reselection based on terminal equipment, there is a connection between the access network and the core network, the context of the terminal equipment is present on a certain base station, paging is triggered by the radio access network (Radio Access Network, RAN), the paging area based on the RAN is managed by the RAN, and the network side knows that the location of the terminal equipment is based on the paging area level of the RAN. The network side need not be notified when the terminal device moves within the radio access network notification area (Radio Access Network Notification Area, RNA) configured by the RAN, but when the RNA is moved out.

The three RRC states can be mutually switched, wherein some RRC parameters of the terminal equipment side in the RRC inactive state are configured through an RRC release message, and the main RRC parameters are as follows:

and the non-activated RNTI (I-RNTI) is used for identifying the non-activated context of the terminal equipment at the base station side and is unique in the base station.

The RAN notification area (RAN Notification Area, RNA) is an area for controlling the terminal device to perform cell selection reselection in the RRC inactive state, and is also an area of the RAN initial paging range.

RAN Paging cycle (RAN Paging cycle), i.e., RAN DRX cycle, is used to calculate Paging occasions for initial Paging of the RAN.

The periodic RAN informs the timer of the area update, i.e., the periodic location update timer T380.

A next hop chain count (Next hop Chaining Counter, NCC) for determining a key used in the RRC connection recovery procedure.

When the terminal equipment moves in the RNA area, the network side is not informed, and the mobility behavior in the RRC idle state, namely the cell selection reselection principle is followed. When the terminal device moves out of the RAN configured paging area, the terminal device triggers a resume RRC connection procedure (i.e., RRC resume procedure) and reacquires the RAN configured paging area. When the network side needs to transmit data to the terminal equipment, that is, when downlink data arrives, the base station storing the context of the terminal equipment triggers all cells in the RAN paging area to send paging messages to the terminal equipment, so that the terminal equipment in the RRC inactive state can recover RRC connection and receive the data. In addition, the terminal equipment in the RRC inactive state configures a RAN paging area in which the terminal equipment needs to perform periodic location update according to a network configuration period in order to ensure reachability of the terminal equipment. The scenario triggering the terminal device to perform RNA update has the RNAU timer to timeout or the terminal device moves to an area outside the RNA.

Double-card double-standby/double-net double-standby

The double-card double-standby mobile phone means that one mobile phone can simultaneously hold two communication cards, and the two communication cards are in a standby state. The dual-card dual-standby generally refers to dual-card dual-standby of the same network system, such as dual-card dual-standby of a GSM network, dual-card dual-standby of a CDMA network, dual-card dual-standby of a PHS network.

The dual-network dual-standby means that a mobile phone can be inserted into two communication cards of different networks at the same time and is in a starting state at the same time, and a user can dial, answer and send and receive short messages at will without switching the networks.

At present, a mobile phone generally does not support pure dual-transmission dual-reception (called dual-pass for short), and the dual-transmission dual-reception refers to that the mobile phone performs uplink transmission and downlink reception of data on two networks through two communication cards at the same time. In general, most mobile phones only support single-shot or single-shot double-shot, which means that the mobile phone can only execute services on one communication card at a time. However, implementing two-way is a trend in future cell phone development. In 5G, for two communication cards supporting a dual-card dual-standby or dual-network dual-standby handset, one communication card may reside in an LTE cell and the other communication card may reside in an NR cell; alternatively, both communication cards reside in NR cells. On the other hand, the two communication cards may be communication cards of the same operator or communication cards of different operators.

For a dual card handset, if one communication card is doing business and the other communication card gets a page, how to handle the page is a matter of certainty. Generally, after a communication card of the terminal device receives the paging message, it directly enters an RRC connected state to receive service data. However, when for a communication card in an RRC inactive state, if the RAN issues a RAN-level paging, but the communication card does not respond to the page, the RAN notifies the CN (e.g., AMF) to trigger the CN-level paging, and at this time, the network side releases the RRC inactive context of the terminal device. The terminal equipment in the RRC inactive state enters the RRC idle state after receiving the CN-level paging.

However, the communication card of the terminal device is not necessarily responsive to the paging message in some cases, and thus there is a need to correctly manage the RRC state after the terminal device receives the paging message. For this reason, the following technical solutions of the embodiments of the present application are provided.

It should be noted that, in the embodiment of the present application, the "terminal device" may be a mobile phone, a tablet computer, a wearable device, etc., where the terminal device may have one communication card (i.e. applied to a single-card scenario), and the terminal device may also have multiple communication cards (i.e. applied to a multi-card scenario), for example, the terminal device may have 2 communication cards or 3 communication cards, etc. The following embodiments are described by taking the first communication card of the terminal device as an example, but are not limited thereto, and the schemes of two or more communication cards are equally applicable to the technical schemes of the embodiments of the present application.

In the embodiment of the application, the terminal equipment is provided with at least a first communication card, and for a multi-card scene, the terminal equipment can be also provided with a second communication card, wherein the network corresponding to the first communication card is a first network, the network corresponding to the second communication card is a second network, the first communication card is registered on the first network, and the second communication card is registered on the second network.

It should be noted that, the embodiments of the present application do not limit the types of the first communication card and the second communication card. For example, the first communication card and the second communication card are both subscriber identity module (Subscriber Identity Module, SIM) cards. For example, the first communication card and the second communication card are both universal subscriber identity module (Universal Subscriber Identity Module, USIM) cards. For example, the first communication card is a SIM card and the second communication card is a USIM card. For example, the first communication card is a USIM card and the second communication card is a SIM card. On the other hand, the network types supported by the first communication card and the second communication card are not limited in the embodiment of the present application, for example, the first communication card supports an LTE network (i.e., the first base station corresponding to the first communication card is an LTE base station), and the second communication card supports an NR network (i.e., the second base station corresponding to the second communication card is an NR base station). For example, the first communication card and the second communication card both support an NR network (i.e., the second base stations corresponding to the first communication card and the second communication card are NR base stations). In still another aspect, the embodiments of the present application do not limit operators to which the first communication card and the second communication card belong, for example, the first communication card and the second communication card may belong to the same operator, or may belong to different operators.

It should be noted that, the communication between the terminal device and the first network is implemented through the first communication card, and the communication between the terminal device and the second network is implemented through the second communication card. For example: twoUSIMcards,namelyaUSIM-AcardandaUSIM-Bcard,existintheterminalequipment. whereintheterminaldevicecancommunicatewiththefirstnetworkthroughaUSIM-Acard,andtheterminaldevicecancommunicatewiththesecondnetworkthroughaUSIM-Bcard.

Fig. 2 is a flowchart of a method for RRC state transition according to an embodiment of the present application, as shown in fig. 2, where the method for RRC state transition includes the following steps:

step 201: after receiving the paging message sent by the first network, the terminal equipment enters an RRC idle state or is kept in an RRC inactive state; the first network is a network corresponding to a first communication card of the terminal equipment; the paging message carries the I-RNTI of the terminal equipment.

In the embodiment of the application, the terminal equipment is provided with the first communication card, and the first communication card of the terminal equipment is in an RRC inactive state. Further optionally, the terminal device further has a second communication card, and the second communication card of the terminal device is in an RRC connected state.

In an application scenario, referring to fig. 3, a terminal device has a first communication card and a second communication card, where a network corresponding to the first communication card is a first network, and a network corresponding to the second communication card is a second network. In one aspect, the terminal device may access the first network through the first communication card, so as to implement a service on the first network. On the other hand, the terminal equipment can access to the second network through the second communication card, so that the service on the second network is realized. Here, the types of the first network and the second network may be the same or different. For example, the first network is an LTE network and the second network is an NR network. For another example, both the first network and the second network are NR networks. The first communication card of the terminal equipment is in an RRC inactive state, and the second communication card of the terminal equipment is in an RRC connection state. For example: twoUSIMcards,namelyaUSIM-AcardandaUSIM-Bcard,existintheterminalequipment. wherein,theUSIM-Acardhastheservice,whichisinRRCconnectionstate; the USIM-B card is in the RRC inactive state and receives the paging message. In this case, the terminal device receives a paging message sent by a first network corresponding to a first communication card, where the paging message is used to page the first communication card.

The following embodiments also refer to the first communication card as a terminal device, and it should be noted that the terminal device communicating with the first network hereinafter refers to the terminal device substantially as a first communication card.

In the embodiment of the application, after receiving the paging message sent by the first network, the terminal equipment in the RRC inactive state enters the RRC idle state or remains in the RRC inactive state. Here, the paging message carries an I-RNTI of the terminal device.

It should be noted that the I-RNTI is a UE identity of the RRC inactive state configured by the RAN to the terminal device. When the RAN pages the terminal equipment in the RRC inactive state, the I-RNTI of the terminal equipment is added in the paging message.

● In an alternative manner, after receiving the paging message sent by the first network, if the terminal device determines that the paging message is not responded or ignores the paging message, the terminal device enters an RRC idle state. Further optionally, the terminal device deletes the RRC inactivity context.

In the embodiment of the application, after receiving the paging message sent by the first network, the first communication card of the terminal equipment autonomously enters an RRC inactive state and deletes the RRC inactive context if the paging message is determined not to be responded or ignored.

Here, it should be noted that the first communication card of the terminal device does not send a busy indication (busy indication) to the first network.

● In an alternative manner, after receiving the paging message sent by the first network, if the terminal device determines not to respond to the paging message and the terminal device sends a busy indication to the first network, the terminal device is kept in an RRC inactive state.

Specifically, after receiving a paging message sent by a first network, a terminal device sends an RRC recovery request (RRCResumeRequest) message to the first network, where the RRC recovery request message carries a busy indication; and after receiving an RRC release message (RRCRelease) sent by the first network, the terminal equipment is kept in an RRC inactive state.

Here, it should be noted that, after the terminal device receives the RRC release message, the terminal device will remain in the RRC inactive state, regardless of whether the RRC release message carries a suspension configuration (suspension configuration).

In the embodiment of the present application, the suspension configuration is used for determining configuration parameters of the RRC inactive state, and mainly includes:

and the I-RNTI is used for identifying the terminal equipment non-activation context of the terminal equipment at the base station side and is unique in the base station.

The RNA, which is used to control the terminal device to perform cell selection reselection in the RRC inactive state, is also the area of the paging range of the RAN.

NCC for determining a key used in the RRC connection recovery procedure.

In an optional manner of the present application, when the RRC release message carries a first suspension configuration, the terminal device determines a configuration parameter of an RRC inactive state based on the first suspension configuration; or if the RRC release message does not carry the first suspension configuration, the terminal device determines configuration parameters of an RRC inactive state based on a second suspension configuration, where the second suspension configuration is a suspension configuration used by the terminal device before sending the busy indication.

In an optional manner of the present application, the RRC release message carries first indication information, where the first indication information is used to indicate whether the terminal device uses a second suspension configuration and/or whether the terminal device uses a first suspension configuration, where the second suspension configuration is a suspension configuration that the terminal device uses before sending the busy indication.

In the above solution, the first suspension configuration may also be understood as a new suspension configuration of the network side configuration. The second suspension configuration may also be understood as the old suspension configuration of the network side previous configuration.

In the embodiment of the application, the terminal equipment determines not to respond to the paging message according to the paging reason in the paging message.

In the embodiment of the application, a non-access (NAS) layer or an Access (AS) layer of the terminal equipment determines whether to respond to the paging message according to the paging reason.

Here, optionally, the paging message is triggered by an anchor base station, and a paging cause in the paging message is notified to the anchor base station by a core network control plane network element. For example: when the downlink data of the terminal equipment reaches the anchor base station, the anchor base station triggers paging aiming at the terminal equipment, and informs base stations (such as base stations corresponding to a first network) in the range of RNA to send paging messages to the terminal equipment. Here, the paging cause in the paging message is notified to the anchor base station by the core network control plane network element. Optionally, the core network control plane network element is an AMF, and before the anchor base station notifies the first base station to send the paging message carrying the paging cause, the AMF notifies the anchor base station of the paging cause.

Here, the paging message carries a paging reason, where the paging reason is used to indicate a service type or a service identifier or a reason for triggering the paging message, for example, the paging reason is used to indicate that the paging message is triggered by a voice call service or a video call service. The terminal device may decide whether to respond to the paging message according to the paging cause. For example, the terminal device may choose not to respond to the paging message for traffic that is not of interest or of low priority.

Fig. 4 is a schematic structural diagram of an apparatus for RRC state transition according to an embodiment of the present application, which is applied to a terminal device, as shown in fig. 4, where the apparatus for RRC state transition includes:

a receiving unit 401, configured to receive a paging message sent by a first network;

a processing unit 402, configured to enter an RRC idle state or remain in an RRC inactive state after the receiving unit 401 receives a paging message sent by the first network;

In an alternative manner, the processing unit 402 is configured to enter an RRC idle state after the receiving unit 401 receives the paging message sent by the first network, if the terminal device determines not to respond to the paging message or ignore the paging message.

In an alternative manner, the processing unit 402 is further configured to delete the RRC inactivity context.

In an alternative manner, the processing unit 402 is configured to, after the receiving unit 401 receives the paging message sent by the first network, maintain the RRC inactive state if the terminal device determines not to respond to the paging message and the terminal device sends a busy indication to the first network.

In an alternative, the apparatus further comprises a transmitting unit (not shown in the figure);

the sending unit is configured to send an RRC restoration request message to the first network, where the RRC restoration request message carries a busy indication;

the receiving unit 401 is further configured to receive an RRC release message sent by the first network;

the processing unit 402 is configured to maintain an RRC inactive state after the receiving unit 401 receives the RRC release message sent by the first network.

In an alternative manner, in a case that the RRC release message carries a first suspension configuration, the terminal device determines a configuration parameter of an RRC inactive state based on the first suspension configuration; or,

and if the RRC release message does not carry the first suspension configuration, the terminal equipment determines configuration parameters of an RRC inactive state based on a second suspension configuration, wherein the second suspension configuration is used by the terminal equipment before sending the busy indication.

In an alternative manner, the RRC release message carries first indication information, where the first indication information is used to indicate whether the terminal device uses a second suspension configuration, and the second suspension configuration is a suspension configuration that the terminal device uses before sending the busy indication.

In an alternative manner, the processing unit 402 is further configured to determine, according to a paging cause in the paging message, not to respond to the paging message.

In an alternative manner, the paging message is triggered by the anchor base station, and the paging reason in the paging message is notified to the anchor base station by the core network control plane network element.

In an alternative manner, the receiving unit 401 is configured to receive the paging message sent by the first network in the RRC inactive state.

Those skilled in the art will appreciate that the above description of the apparatus for RRC state transition according to the embodiments of the present application may be understood with reference to the description of the method for RRC state transition according to the embodiments of the present application.

Fig. 5 is a schematic block diagram of a communication device 500 according to an embodiment of the present application. The communication device may be a terminal device or a network device (such as a base station corresponding to the first network), and the communication device 500 shown in fig. 5 includes a processor 510, where the processor 510 may call and execute a computer program from a memory to implement a method in an embodiment of the present application.

Optionally, as shown in fig. 5, the communication device 500 may also include a memory 520. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the method in an embodiment of the application.

Wherein the memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

Optionally, as shown in fig. 5, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Wherein the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, the number of which may be one or more.

Optionally, the communication device 500 may be specifically a network device in the embodiment of the present application, and the communication device 500 may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 500 may be specifically a mobile terminal/terminal device according to the embodiment of the present application, and the communication device 500 may implement corresponding processes implemented by the mobile terminal/terminal device in each method according to the embodiment of the present application, which are not described herein for brevity.

Fig. 6 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 600 shown in fig. 6 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 6, the chip 600 may further include a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the method in an embodiment of the application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

Optionally, the chip 600 may also include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may acquire information or data sent by the other devices or chips.

Optionally, the chip 600 may further include an output interface 640. Wherein the processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 7 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in fig. 7, the communication system 700 includes a terminal device 710 and a network device 720.

The terminal device 710 may be configured to implement the corresponding functions implemented by the terminal device in the above method, and the network device 720 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of radio resource control, RRC, state transitions, the method comprising:

after receiving the paging message sent by the first network, the terminal equipment enters an RRC idle state or is kept in an RRC inactive state;

the first network is a network corresponding to a first communication card of the terminal equipment; the paging message carries an inactive radio network temporary identifier I-RNTI of the terminal equipment.
The method of claim 1, wherein the terminal device enters an RRC idle state after receiving the paging message sent by the first network, comprising:

after receiving the paging message sent by the first network, if the terminal equipment determines not to respond to the paging message or ignores the paging message, the terminal equipment enters an RRC idle state.
The method of claim 2, wherein the method further comprises:

the terminal device deletes the RRC inactive context.
The method of claim 1, wherein the terminal device remains in the RRC inactive state after receiving the paging message sent by the first network, comprising:

after receiving the paging message sent by the first network, if the terminal equipment determines not to respond to the paging message and the terminal equipment sends a busy indication to the first network, the terminal equipment is kept in an RRC inactive state.
The method of claim 4, wherein the terminal device remains in the RRC inactive state after receiving the paging message sent by the first network, comprising:

after receiving paging information sent by a first network, terminal equipment sends RRC recovery request information to the first network, wherein the RRC recovery request information carries a busy indication;

and the terminal equipment is kept in an RRC inactive state after receiving the RRC release message sent by the first network.
The method of claim 5, wherein the method further comprises:

under the condition that the RRC release message carries a first suspension configuration, the terminal equipment determines configuration parameters of an RRC inactive state based on the first suspension configuration; or,

And if the RRC release message does not carry the first suspension configuration, the terminal equipment determines configuration parameters of an RRC inactive state based on a second suspension configuration, wherein the second suspension configuration is used by the terminal equipment before sending the busy indication.
The method of claim 5 or 6, wherein the RRC release message carries first indication information indicating whether the terminal device uses a second suspension configuration, the second suspension configuration being a suspension configuration used by the terminal device before sending the busy indication.
The method of any of claims 2 to 7, wherein the terminal device determining not to respond to the paging message comprises:

and the terminal equipment determines not to respond to the paging message according to the paging reason in the paging message.
The method of claim 8, wherein the paging message is triggered by an anchor base station, the paging cause in the paging message being notified to the anchor base station by a core network control plane network element.
The method according to any of claims 1 to 9, wherein the terminal device receiving the paging message sent by the first network comprises:

The terminal equipment in the RRC inactive state receives the paging message sent by the first network.
An apparatus for RRC state transition, applied to a terminal device, the apparatus comprising:

a receiving unit, configured to receive a paging message sent by a first network;

the processing unit is used for entering an RRC idle state or keeping in an RRC inactive state after the receiving unit receives the paging message sent by the first network;

the first network is a network corresponding to a first communication card of the terminal equipment; the paging message carries the I-RNTI of the terminal equipment.
The apparatus of claim 11, wherein the processing unit is configured to enter an RRC idle state after the receiving unit receives a paging message sent by a first network, if the terminal device determines not to respond to the paging message or ignore the paging message.
The apparatus of claim 12, wherein the processing unit is further configured to delete an RRC non-active context.
The apparatus of claim 11, wherein the processing unit is configured to remain in an RRC inactive state after the receiving unit receives a paging message sent by a first network, if the terminal device determines not to respond to the paging message and the terminal device sent a busy indication to the first network.
The apparatus of claim 14, wherein the apparatus further comprises a transmitting unit;

the sending unit is configured to send an RRC restoration request message to the first network, where the RRC restoration request message carries a busy indication;

the receiving unit is further configured to receive an RRC release message sent by the first network;

the processing unit is configured to keep in an RRC inactive state after the receiving unit receives the RRC release message sent by the first network.
The apparatus of claim 15, wherein,

under the condition that the RRC release message carries a first suspension configuration, the terminal equipment determines configuration parameters of an RRC inactive state based on the first suspension configuration; or,

and if the RRC release message does not carry the first suspension configuration, the terminal equipment determines configuration parameters of an RRC inactive state based on a second suspension configuration, wherein the second suspension configuration is used by the terminal equipment before sending the busy indication.
The apparatus of claim 15 or 16, wherein the RRC release message carries first indication information indicating whether the terminal device uses a second suspension configuration, the second suspension configuration being a suspension configuration used by the terminal device before sending the busy indication.
The apparatus of any of claims 12 to 17, wherein the processing unit is further configured to determine not to respond to the paging message based on a paging cause in the paging message.
The apparatus of claim 18, wherein the paging message is triggered by an anchor base station, the anchor base station being notified of a paging cause in the paging message by a core network control plane network element.
The apparatus according to any one of claims 11 to 19, wherein the receiving unit is configured to receive the paging message sent by the first network in an RRC inactive state.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method according to any of claims 1 to 10.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 10.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 10.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 10.
A computer program which causes a computer to perform the method of any one of claims 1 to 10.