WO2021056465A1

WO2021056465A1 - Method for determining connection status of radio link, and electronic device and storage medium

Info

Publication number: WO2021056465A1
Application number: PCT/CN2019/108715
Authority: WO
Inventors: 王淑坤
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2021-04-01
Also published as: CN113711638B; CN113711638A

Abstract

Disclosed is a method for determining a connection status of a radio link. The method comprises: when a second timer corresponding to a serving cell is running and a terminal device triggers a measurement event on a measurement object, if a first timer corresponding to the serving cell and the measurement object is not started, the terminal device starting the first timer corresponding to the serving cell and the measurement object; or, if a first timer corresponding to the serving cell is not started, the terminal device starting the first timer corresponding to the serving cell; and the terminal device determining the connection status of a radio link of the serving cell on the basis of the first timer, wherein the second timer is started when the radio link of the serving cell is abnormal. Further disclosed are another method for determining the connection status of a radio link, and an electronic device and a storage medium.

Description

Method, electronic equipment and storage medium for determining wireless link connection state

Technical field

This application relates to the field of wireless communication technologies, and in particular to a method, electronic equipment, and storage medium for determining the connection status of a wireless link.

Background technique

In the primary cell (Primary Cell, PCell) in the Long Term Evolution (LTE) system and the New Radio (NR) system, how to quickly determine the primary cell group (Master Cell Group) where the PCell or PCell is located, MCG) wireless link connection status is a problem to be solved. Moreover, in the primary and secondary cells (PSCell) of the LTE and NR systems, how to quickly determine the radio link connection status of the PSCell or the secondary cell group (SCG) in which the PSCell is located has not been clarified.

Summary of the invention

The embodiment of the application provides a method, electronic device and storage medium for determining the wireless link connection status, so that the terminal device can quickly determine the PCell or the MCG wireless link connection status of the PCell, and clarify how the terminal device quickly determines The wireless link connection status of the PSCell or the SCG where the PSCell is located.

In the first aspect, an embodiment of the present application provides a method for determining the connection status of a wireless link, the method includes: when a second timer corresponding to a serving cell is running and a terminal device triggers a measurement event on a measurement object under,

If the first timer corresponding to the serving cell and the measurement object is not started, the terminal device starts the first timer corresponding to the serving cell and the measurement object; or, if it is related to the serving cell The corresponding first timer is not started, and the terminal device starts the first timer corresponding to the serving cell;

Determining, by the terminal device, the radio link connection status of the serving cell based on the first timer;

Wherein, the second timer is started when an abnormality occurs in the radio link of the serving cell.

In a second aspect, an embodiment of the present application provides a method for determining a wireless link connection state, the method includes: a network device sends configuration parameters for a first timer to a terminal device, and the first timer is used for the terminal The device determines the wireless link connection status.

In a third aspect, an embodiment of the present application provides a terminal device, the terminal device includes: a processing unit configured to: when a second timer corresponding to a serving cell is running and the terminal device triggers a measurement event on a measurement object under,

If the first timer corresponding to the serving cell and the measurement object is not started, start the first timer corresponding to the serving cell and the measurement object; or, if the first timer corresponding to the serving cell If the timer is not started, start the first timer corresponding to the serving cell;

Determining the radio link connection status of the serving cell based on the first timer;

In a fourth aspect, an embodiment of the present application provides a network device, the network device includes: a sending unit configured to send configuration parameters for a first timer to a terminal device, and the first timer is used by the terminal device to determine Wireless link connection status.

In a fifth aspect, an embodiment of the present application provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where:

When the processor is used to run the computer program, it executes the steps of the method for determining the connection state of a wireless link executed by the terminal device described above.

In a sixth aspect, an embodiment of the present application provides a network device, including a processor and a memory for storing a computer program that can run on the processor, where:

The processor is configured to execute the steps of the method for determining the connection state of the wireless link executed by the network device when running the computer program.

In a seventh aspect, an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that a terminal device installed with the chip executes the above-mentioned method for determining a wireless link connection state.

In an eighth aspect, an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that a network device installed with the chip executes the above-mentioned method for determining a wireless link connection state.

In a ninth aspect, an embodiment of the present application provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the method for determining a wireless link connection state executed by the above-mentioned terminal device is implemented.

In a tenth aspect, an embodiment of the present application provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the method for determining a wireless link connection state executed by the above-mentioned network device is implemented.

In an eleventh aspect, an embodiment of the present application provides a computer program product, including computer program instructions that cause a computer to execute the above-mentioned method for determining a wireless link connection status performed by a terminal device.

In a twelfth aspect, an embodiment of the present application provides a computer program product, including computer program instructions that cause a computer to execute the method for determining a wireless link connection state executed by the above-mentioned network device.

In a thirteenth aspect, an embodiment of the present application provides a computer program that enables a computer to execute the method for determining a wireless link connection state executed by the above terminal device.

In a fourteenth aspect, an embodiment of the present application provides a computer program that enables a computer to execute the method for determining a wireless link connection state executed by the above-mentioned network device.

The method, electronic device, and storage medium for determining the wireless link connection state provided by the embodiments of the present application, when the second timer corresponding to the serving cell is running, and the terminal device triggers a measurement event on the measurement object, if the If the first timer corresponding to the serving cell and the measurement object is not started, the terminal device starts the first timer corresponding to the serving cell and the measurement object; or, if the first timer corresponding to the serving cell The first timer is not started, and the terminal device starts the first timer corresponding to the serving cell. The terminal device determines the radio link connection status of the serving cell based on the first timer; wherein, the second timer is started when an abnormality occurs in the radio link of the serving cell. In this way, the terminal device can quickly determine the connection state of the wireless link of the PCell or the MCG where the PCell is located, and clarify how the terminal device determines the connection state of the wireless link of the SCG where the PSCell or the PSCell is located. In addition, in the embodiment of the present application, the terminal device can trigger the start of the first timer by the measurement report related to the cell change when the radio resource link connection of the serving cell is abnormal, and shorten the waiting time of the cell change instruction, so as to realize the rapid determination of the service. The purpose of the wireless link connection status of the cell; the embodiment of the application uses the measurement object as the dimension to determine the wireless link connection status, and starts the first timer corresponding to each measurement object for multiple measurement objects, and can control the connection status of each measurement object. The service cell handover preparation process allows the terminal equipment to accurately determine the wireless link connection status of the serving cell.

Description of the drawings

Figure 1 is a schematic diagram of the network deployment and networking architecture of the EN-DC application;

Figure 2 is a schematic diagram of the EN-DC application scenario;

Figure 3 is a schematic diagram of the network architecture of the EN-DC application;

Figure 4 is a schematic diagram of the network architecture of the NE-DC or NR-DC of the application;

Figure 5 is a schematic diagram of the network architecture of the NGEN-DC of the application;

FIG. 6 is a schematic diagram of the composition structure of a communication system according to an embodiment of the application;

FIG. 7 is a schematic diagram of an optional processing flow of the method for determining a wireless link connection state provided by an embodiment of the application;

FIG. 8 is a schematic diagram of the terminal device starting T312 according to an embodiment of this application;

FIG. 9 is another schematic diagram of the terminal device starting T312 according to an embodiment of the application;

FIG. 10 is a schematic diagram of the composition structure of a terminal device according to an embodiment of the application;

FIG. 11 is a schematic diagram of the composition structure of a network device according to an embodiment of the application;

FIG. 12 is a schematic diagram of the hardware composition structure of an electronic device according to an embodiment of the application.

detailed description

In order to have a more detailed understanding of the characteristics and technical content of the embodiments of the present application, the implementation of the embodiments of the present application will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and explanation purposes only, and are not used to limit the embodiments of the present application.

Before describing in detail the method for determining the connection state of a wireless link provided by the embodiment of the present application, a brief description of the NR system is first given.

With people's pursuit of speed, delay, high-speed mobility, energy efficiency, and the diversity and complexity of services in future life, the 3GPP International Standards Organization began to develop 5G. The main application scenarios of 5G are: Enhance Mobile Broadband (eMBB), Ultra Reliable Low Latency Communications (URLLC), and Massive Machine Type Communication (mMTC).

eMBB still aims for users to obtain multimedia content, services and data, and its demand is growing very rapidly. On the other hand, because eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., its capabilities and requirements are also quite different, so it cannot be generalized, and must be analyzed in detail in conjunction with specific deployment scenarios. Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc. The typical characteristics of mMTC include: high connection density, small data volume, delay-insensitive services, low cost and long service life of the module.

In order to realize the deployment and commercial application of 5G networks as soon as possible, 3GPP will first complete the first 5G version before the end of December 2017, namely LTE-NR Dual Connectivity (EN-DC). The schematic diagram of the EN-DC network deployment and networking architecture is shown in Figure 1: The network equipment of the LTE system serves as the master node (Master Node, MN), and the network equipment of the NR system serves as the secondary node (Secondary Node, SN).

In the EN-DC scenario shown in Figure 2, MN (LTE eNB) is mainly used to implement the radio resource control (Radio Resource Control, RRC) function and the control plane leading to the core network (Core Network, CN), SN (gNB) ) Auxiliary signaling can be configured, such as signaling bearer 3 (Signalling Radio Bearer 3, SRB3), which mainly provides data transmission functions.

In addition to EN-DC, terminal equipment also supports other DC forms, such as NE-DC, 5GC-EN-DC, and NR-DC. The network architecture of EN-DC is shown in Figure 3. The core network connected to the access network is EPC. The network architecture of NE-DC or NR-DC is shown in Figure 4, and the network architecture of NGEN-DC is shown in Figure 5. The core network connected to the access network is 5GC.

The following is a brief description of Radio Link Monitoring (RLM):

RLM refers to monitoring the downlink channel quality of the serving cell. The physical layer evaluates the radio link quality within a specified time and compares the Signal to Interference plus Noise Ratio (SINR) with the Qin threshold and Qout threshold If the SINR is lower than the Qout threshold, the physical layer reports an out-of-sync indication to the upper layer. If the SINR is higher than the Qin threshold, the physical layer reports an in-sync indication to the upper layer.

The Qout threshold and Qin threshold are determined by detecting the block error rate (The radio block error ratio of Radio Link Control, BLER) of the Physical Downlink Control Channel (PDCCH) format 1-0. The BLER values corresponding to the Qin threshold and Qout threshold are configured through RRC signaling per cell. The corresponding relationship between the Qin threshold and the Qout threshold and the BLER is shown in the following Table 1. The default default value is for the Qout threshold, and the BLER corresponding to the PDCCH is 10%; the default default value is for the Qin threshold, and the BLER corresponding to the PDCCH is 2%.

配置Configuration	BLERoutBLERout	BLERinBLERin
00	10％10%	2％2%
11	TBDTBD	TBDTBD

Table 1

In the RLF process, the downlink out-of-synchronization determination of the terminal equipment on the network side involves the following timers (RLF-Timers) and constants (IE): N310, T310, N311. Among them, the involved timers and constant parameters can be configured to the terminal device through dedicated signaling; if not configured to the terminal device through dedicated signaling, the parameters in the system broadcast (SIB1) are used to configure the terminal device.

When the terminal device is in the RRC_CONNECTED state and receives N310 consecutive "out_of_Sync" and T310, T301, T304, and T311 are not running, the timer T310 is started. If N311 consecutive "in_Sync" are received before the timer expires, the timer T310 is stopped, and it appears that the terminal device has resumed downlink synchronization. Otherwise, T310 times out and the terminal device is in a downlink out-of-synchronization state, that is, RLF.

If RLF occurs in the MCG, the terminal device performs the RRC connection re-establishment process; if the SCG occurs in the RLF, the terminal device reports an SCG failure information (SCG Failure Information) to the MN, but the RRC connection re-establishment process is not triggered.

The method for determining the connection status of the wireless link provided by the embodiments of the application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) System, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), LTE system, LTE Frequency Division Duplex (FDD) system, LTE time division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application is shown in FIG. 6. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The "terminal equipment" used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment. A terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

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

Figure 6 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

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

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 6 as an example, the communication device may include a network device 110 having a communication function and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.

An optional processing procedure of the method for determining the connection status of a wireless link provided by the embodiment of the present application, as shown in FIG. 7, includes the following steps:

Step S201: In the case that the second timer corresponding to the serving cell is running and the terminal device triggers a measurement event on the measurement object, if the first timer corresponding to the serving cell and the measurement object is not started, The terminal device starts the first timer corresponding to the serving cell and the measurement object; or, if the first timer corresponding to the serving cell is not started, the terminal device starts corresponding to the serving cell The first timer.

In some embodiments, the serving cell may be a PCell in an LTE system, or a PCell in an NR system, or a PSCell in an LTE system, or a PSCell in an NR system.

In some embodiments, the second timer is T310, and the second timer is running, indicating that the serving cell has a radio link problem (Radio Link Problem), that is, the radio link of the serving cell is abnormal. The first timer is T312.

In some embodiments, the measurement object may be a measurement frequency point; correspondingly, the terminal device triggering a measurement event on the measurement object includes: the terminal device triggers a measurement event on the measurement frequency point; the measurement event may be an A3 event or A5 event.

It can be understood that, in the embodiment of the present application, when the second timer corresponding to the serving cell is running and the terminal device triggers a measurement event on the measurement object, starting the first timer by the terminal device includes the following two possible implementations: the way:

The first possible implementation manner is: if the first timer corresponding to the serving cell and the measurement object is not started, the terminal device starts the first timer corresponding to the serving cell and the measurement object.

In this embodiment, each measurement object corresponding to the serving cell starts a first timer. If the terminal device triggers a measurement event on the measurement object configured by the network device, the measurement object is configured with the first timer, the measurement event triggered by the terminal device is configured with the application first timer, and the corresponding target of the serving cell The first timer of the measurement object of the measurement event is not running, and the terminal device starts the first timer corresponding to the serving cell and the measurement object.

The second possible implementation manner is: if the first timer corresponding to the serving cell is not started, the terminal device starts the first timer corresponding to the serving cell.

In this embodiment, all measurement objects corresponding to the serving cell only start one first timer; for example, if the first timer corresponding to the first measurement object has been started, and the first timer is The first timer corresponding to the measurement object does not expire, even if the terminal device triggers a measurement event on the second measurement object, and the second measurement object is configured with the first timer, then the second measurement object corresponding to the second measurement object is not started anymore. A timer. In specific implementation, if the terminal device triggers a measurement event on the measurement object configured by the network device, the measurement object is configured with the first timer, and the measurement event triggered by the terminal device is configured with the application first timer. The first timer corresponding to the serving cell is not started, and the terminal device starts the first timer corresponding to the serving cell.

In the above two implementation manners, the value of the started first timer is the first timer parameter corresponding to the measurement object, and the first timer parameter can be configured by the network device.

Step S202: The terminal device determines the wireless link connection status of the serving cell based on the first timer.

In some embodiments, the terminal device determines the radio link connection status of the serving cell based on whether the first timer expires.

In specific implementation, if before the first timer of all measurement objects corresponding to the network device expires, or before the first timer corresponding to the network device expires, the terminal device receives the In the case of an RRC message for a serving cell change (such as PSCell change or PCell handover), the terminal device performs the serving cell change. In addition, the terminal device stops the first timer running on all measurement objects corresponding to the serving cell and the second timer corresponding to the serving cell; or, the terminal device stops corresponding to the serving cell The first timer of and the second timer corresponding to the serving cell.

For the first optional implementation manner of starting the first timer in step S201, if the first timers running on all measurement objects corresponding to the serving cell expire, the terminal device determines the serving cell And/or the radio link connection of the cell group where the serving cell is located fails. For example, the first timer corresponding to N measurement objects is started, and the terminal device determines the serving cell and/or the cell where the serving cell is located only when the N first timers are all timed out The wireless link connection of the group failed.

In the embodiment of this application, the serving cell maintains multiple first timers corresponding to multiple measurement objects. The length of each first timer can be flexibly configured, and the reporting time of different measurement objects can also be flexibly configured. The terminal equipment accurately judges the wireless link connection status of the serving cell.

The following examples illustrate the beneficial effects of determining the wireless link connection state provided by the embodiments of the present application. If the measurement report is triggered on the first measurement object and the first timer A is started, and the remaining time of the first timer A is short and will expire, the measurement report is triggered on the second measurement object and start The first timer B. In the solution for determining the connection status of the wireless link in the related art, if the first timer A expires, it is directly determined that the wireless link connection fails; however, before the second timer expires, the terminal device may still receive the second timer The cell change instruction of the measurement object; at this time, if the wireless link connection failure is determined directly according to the timeout of the first timer A, the wireless link connection status determined by the terminal device will be wrong. However, in the embodiment of the present application, if the first timer A times out, it does not directly determine that the wireless link connection fails, but continues to determine the wireless link connection status according to whether the running first timer B times out; During the operation of a timer B, when the terminal device receives a cell change instruction for the second measurement object, the terminal device executes a serving cell change. In the embodiment of the present application, the measurement object is used as the dimension to determine the wireless link connection status, and the first timer corresponding to each measurement object is started for a plurality of measurement objects, so as to control the serving cell handover preparation process on each measurement object.

For the second optional implementation manner of starting the second timer in step S201, if the first timer corresponding to the serving cell times out, the terminal device determines the serving cell and/or the serving cell The wireless link connection of the cell group in which it is located failed. In the first optional implementation manner, only one first timer is started. Therefore, when the timer expires, the terminal device determines the status of the serving cell and/or the cell group in which the serving cell is located. The wireless link connection failed.

Wherein, when the serving cell is PCell, the cell group where the serving cell is located is MCG; when the serving cell is PSCell, the cell group where the serving cell is located is SCG.

The embodiments of this application also include:

Step S200: The terminal device receives the configuration parameters sent by the network device corresponding to the serving cell.

In some embodiments, the configuration parameter includes at least one of the following: a first timer parameter independently configured for different measurement objects and whether to apply the first timer is configured for one or more measurement events.

Wherein, the configuration parameters are carried in RRC messages.

In the embodiment of this application, the network device configures T312 parameters to the terminal device through the RRC message, and associates the measurement report event configured by the network device with the monitoring of the wireless link connection status of the serving cell, so that the terminal device can access the wireless resources of the serving cell. When the link connection is abnormal, the measurement report related to the cell change triggers T312 to start, which reduces the waiting time of the cell change command and realizes the purpose of quickly determining the wireless link connection status of the serving cell, and then triggers the MN or SN to replace the available ones as soon as possible. Service area.

The method for determining the connection state of a radio resource link involved in the embodiment of the present application will be described in detail below for different serving cells.

If the serving cell is a PSCell in an LTE or NR system, and all measurement objects corresponding to the PSCell only start one T312, the process for the terminal equipment to determine the radio link connection status is:

In step S301, the SN corresponding to the PSCell configures the T312 parameter for the terminal device through the RRC message.

In some embodiments, T312 parameters can be configured on one or more measurement objects, and the length of T312 corresponding to each measurement object can be configured separately; the length of T312 corresponding to different measurement objects can be the same or different.

In some embodiments, the T312 parameter may indicate whether T312 is applied for one or more measurement event configurations; that is, the T312 parameter indicates whether T312 is applied for the measurement event; wherein, the measurement event configuration may be a report configuration.

In some embodiments, the RRC message may be: an RRC reconfiguration message directly sent by the SN to the terminal device, and the RRC message may be carried by SRB3.

In other embodiments, the RRC message may be: an RRC reconfiguration message sent by the SN to the terminal device through the MN, and the RRC message may be carried by SRB1. For example, the SN sends the measurement configuration including T312 to the MN via the inter-interface message CG-Config, and the MN sends the measurement configuration in the form of a container to the terminal device via the RRC reconfiguration message on the SRB1.

Step S302, when the T310 corresponding to the PSCell is running, if the terminal device triggers a measurement event on the measurement frequency point 1 configured by the SN; the measurement frequency point 1 is configured with T312, the measurement event is configured with the application T312, and the PSCell corresponds to If the T312 is not running, the terminal device starts the T312 corresponding to the PSCell and performs measurement and report. Among them, the length of T312 is the value of T312 configured at the measurement frequency point. A schematic diagram of the terminal device starting T312, as shown in Figure 8, if the terminal device triggers a measurement event at the measurement frequency point 2 configured by the SN; the measurement frequency point 2 is configured with T312, and the measurement event is configured with the application T312. One T312 corresponding to the PSCell is already running, and the terminal device does not operate on T312.

Step S303: If the RRC message containing PSCell change is received before the T312 timer corresponding to the PSCell expires, the terminal device stops T312 corresponding to the PSCell and executes the PSCell change process. If the T312 timer corresponding to the PSCell expires, the terminal device determines that the wireless link connection of the PSCell fails, and reports SCG failure information to the MN.

If the serving cell is a PSCell in an LTE or NR system, and each measurement object corresponding to the PSCell only activates one T312, the process for the terminal device to determine the radio link connection status is:

In step S401, the SN corresponding to the PSCell configures the T312 parameter for the terminal device through the RRC message.

Step S402, when the T310 corresponding to the PSCell is running, if the terminal device triggers a measurement event on the measurement frequency point 1 configured by the SN; the measurement frequency point 1 is configured with T312, the measurement event is configured with the application T312, and the PSCell and The T312 corresponding to the measurement frequency point 1 is not running, and the terminal device starts the PSCell and the T312 corresponding to the measurement frequency point 1, and performs a measurement report. Among them, the length of T312 is the value of T312 configured for frequency point 1 of the measurement. Another schematic diagram of the terminal device starting T312, as shown in Figure 9, if the terminal device triggers a measurement event at the measurement frequency point 2 configured by the SN; the measurement frequency point 2 is configured with T312, and the measurement event is configured with application T312. The T312 corresponding to the measurement frequency point 2 is not running, and the terminal device starts the T312 corresponding to the measurement frequency point 2.

Step S403: If an RRC message containing PSCell change is received before any T312 timer corresponding to the PSCell expires, the terminal device stops all T312s corresponding to the PSCell and executes the PSCell change process. If all T312 timers corresponding to the PSCell expire, the terminal device determines that the wireless link connection of the PSCell fails, and reports SCG failure information to the MN.

If the serving cell is a PCell in an LTE or NR system, only one T312 is activated for each measurement object corresponding to the PCell, and the process for the terminal device to determine the radio link connection status is:

In step S501, the SN corresponding to the PCell configures the T312 parameter for the terminal device through the RRC message.

In some embodiments, the T312 parameter may indicate whether to apply T312 for one or more measurement event configurations; that is, the T312 parameter indicates whether the measurement event applies T312; wherein, the measurement event configuration may be report configuration.

Step S502: When the T310 corresponding to the PCell is running, if the terminal device triggers a measurement event on the measurement frequency point 1 configured by the SN; the measurement frequency point 1 is configured with T312, the measurement event is configured with the application T312, and the PCell and The T312 corresponding to the measurement frequency point 1 is not running, and the terminal device starts the PCell and the T312 corresponding to the measurement frequency point 1, and performs a measurement report. Among them, the length of T312 is the value of T312 configured for frequency point 1 of the measurement.

Step S503: If an RRC message including PCell switching is received before any T312 timer corresponding to the PCell expires, the terminal device stops all T312s corresponding to the PCell and executes the PCell switching process. If all T312 timers corresponding to the PSCell expire, the terminal device determines that the radio link connection of the PCell fails, and triggers the RRC connection re-establishment process.

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

In order to implement the above method for determining the connection status of a wireless link, an embodiment of the present application provides a terminal device. The composition structure of the terminal device 600, as shown in FIG. 10, includes:

The processing unit 601 is configured to, when the second timer corresponding to the serving cell is running and the terminal device triggers a measurement event on the measurement object,

In some embodiments, the terminal device 600 further includes:

The receiving unit 602 is configured to receive configuration parameters sent by the network device corresponding to the serving cell.

In some embodiments, the configuration parameters are carried in RRC messages.

In some embodiments, the value of the first timer is a first timer parameter corresponding to the measurement object.

In some embodiments, the processing unit 601 is configured to determine the radio link connection status of the serving cell based on whether the first timer expires.

In some embodiments, when the terminal device 600 receives the RRC message including the serving cell change, the processing unit 601 is configured to perform the serving cell change.

In some embodiments, the processing unit 601 is configured to stop a first timer running on all measurement objects corresponding to the serving cell and a second timer corresponding to the serving cell;

Alternatively, the processing unit 601 is configured to stop the first timer corresponding to the serving cell and the second timer corresponding to the serving cell.

In some embodiments, if the first timers running on all measurement objects corresponding to the serving cell expire, the processing unit 601 is configured to determine the serving cell and/or the cell where the serving cell is located The wireless link connection of the group failed.

In some embodiments, if the first timer corresponding to the serving cell expires, the processing unit 601 is configured to determine that the radio link connection of the serving cell and/or the cell group in which the serving cell is located fails .

In some embodiments, the serving cell includes at least one of the following: PSCell and PCell.

In some embodiments, the first timer is T312, and the second timer is T310.

In order to implement the foregoing method for determining the connection status of a wireless link, an embodiment of the present application provides a network device. The composition structure of the network device 800, as shown in FIG. 11, includes:

The sending unit 801 is configured to send configuration parameters for a first timer to a terminal device, where the first timer is used for the terminal device to determine a wireless link connection state.

In some embodiments, the configuration parameters are carried in RRC messages.

In some embodiments, the network device 800 includes at least one of the following: an SN corresponding to the PSCell, and an MN corresponding to the PCell.

In some embodiments, the first timer is T312.

An embodiment of the present application also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal device when the computer program is running. Steps of the method for determining the connection status of the wireless link.

An embodiment of the present application also provides a network device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the above-mentioned network device when the computer program is running. Steps of the method for determining the connection status of the wireless link.

An embodiment of the present application also provides a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method for determining a wireless link connection state performed by the terminal device.

An embodiment of the present application also provides a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method for determining a wireless link connection state executed by the above-mentioned network device.

The embodiment of the present application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the method for determining a wireless link connection state executed by the above-mentioned terminal device is implemented.

The embodiment of the present application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the method for determining a wireless link connection state executed by the above-mentioned network device is implemented.

An embodiment of the present application also provides a computer program product, including computer program instructions, which cause a computer to execute the method for determining a wireless link connection state executed by the above-mentioned terminal device.

An embodiment of the present application also provides a computer program product, including computer program instructions, which cause a computer to execute the above-mentioned method for determining a wireless link connection state.

An embodiment of the present application also provides a computer program that enables a computer to execute the method for determining a wireless link connection state executed by the above-mentioned terminal device.

An embodiment of the present application also provides a computer program that enables a computer to execute the method for determining a wireless link connection state executed by the above-mentioned network device.

12 is a schematic diagram of the hardware composition structure of an electronic device (terminal device and network device) according to an embodiment of the present application. The electronic device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704. The various components in the electronic device 700 are coupled together through the bus system 705. It can be understood that the bus system 705 is used to implement connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 705 in FIG. 12.

It can be understood that the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory. Among them, non-volatile memory can be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM (CD) -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage. The volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (SRAM, Static Random Access Memory), synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), and dynamic random access memory. Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced Type synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous connection dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory) ). The memory 702 described in the embodiment of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

The memory 702 in the embodiment of the present application is used to store various types of data to support the operation of the electronic device 700. Examples of these data include: any computer program used to operate on the electronic device 700, such as the application program 7022. A program for implementing the method of the embodiment of the present application may be included in the application program 7022.

The method disclosed in the foregoing embodiments of the present application may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The processor 701 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the electronic device 700 may be configured by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.

The embodiment of the present application also provides a storage medium for storing computer programs.

Optionally, the storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application. For brevity, details are not described herein again.

This application is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

The above are only the preferred embodiments of this application and are not used to limit the scope of protection of this application. Any modification, equivalent replacement and improvement made within the spirit and principle of this application shall be included in Within the scope of protection of this application.

Claims

A method for determining the connection status of a wireless link, the method comprising:

In the case that the second timer corresponding to the serving cell is running and the terminal device triggers a measurement event on the measurement object,

If the first timer corresponding to the serving cell and the measurement object is not started, the terminal device starts the first timer corresponding to the serving cell and the measurement object; or, if it is related to the serving cell The corresponding first timer is not started, and the terminal device starts the first timer corresponding to the serving cell;

Determining, by the terminal device, the radio link connection status of the serving cell based on the first timer;

Wherein, the second timer is started when an abnormality occurs in the radio link of the serving cell.
The method according to claim 1, wherein the method further comprises:

The terminal device receives the configuration parameters sent by the network device corresponding to the serving cell.
The method according to claim 2, wherein the configuration parameter includes at least one of the following:

First timer parameters independently configured for different measurement objects;

Whether to apply the first timer is configured for one or more measurement events.
The method according to claim 2 or 3, wherein the configuration parameter is carried in a radio resource control RRC message.
The method according to any one of claims 1 to 4, wherein the value of the first timer is a first timer parameter corresponding to the measurement object.
The method according to any one of claims 1 to 5, wherein the terminal device determining the radio link connection status of the serving cell based on the first timer comprises:

The terminal device determines the radio link connection status of the serving cell based on whether the first timer expires.
The method according to any one of claims 1 to 6, wherein the terminal device determining the radio link connection status of the serving cell based on the first timer comprises:

When the terminal device receives the RRC message including the serving cell change, the terminal device executes the serving cell change.
The method according to claim 7, wherein the method further comprises:

Stopping, by the terminal device, the first timers running on all measurement objects corresponding to the serving cell and the second timers corresponding to the serving cell;

Alternatively, the terminal device stops the first timer corresponding to the serving cell and the second timer corresponding to the serving cell.
The method according to any one of claims 1 to 6, wherein the terminal device determining the radio link connection status of the serving cell based on the first timer comprises:

If the first timers running on all measurement objects corresponding to the serving cell expire, the terminal device determines that the radio link connection of the serving cell and/or the cell group in which the serving cell is located has failed.
The method according to any one of claims 1 to 6, wherein the terminal device determining the radio link connection status of the serving cell based on the first timer comprises:

If the first timer corresponding to the serving cell times out, the terminal device determines that the radio link connection of the serving cell and/or the cell group in which the serving cell is located fails.
The method according to any one of claims 1 to 10, wherein the serving cell includes at least one of the following:

PSCell of primary and secondary cell;

Primary cell PCell.
The method according to any one of claims 1 to 11, wherein:

The first timer is T312;

And/or, the second timer is T310.
A method for determining the connection status of a wireless link, the method comprising:

The network device sends the configuration parameter for the first timer to the terminal device, where the first timer is used for the terminal device to determine the wireless link connection state.
The method according to claim 13, wherein the configuration parameters include at least one of the following:

First timer parameters independently configured for different measurement objects;

Whether to apply the first timer is configured for one or more measurement events.
The method according to claim 13 or 14, wherein the configuration parameter is carried in a radio resource control RRC message.
The method according to any one of claims 13 to 15, wherein the network device includes at least one of the following:

The secondary node SN corresponding to the PSCell of the primary and secondary cell;

The primary node MN corresponding to the primary cell PCell.
The method according to any one of claims 13 to 16, wherein the first timer is T312.
A terminal device, the terminal device includes:

The processing unit is configured to, when the second timer corresponding to the serving cell is running and the terminal device triggers a measurement event on the measurement object,

If the first timer corresponding to the serving cell and the measurement object is not started, start the first timer corresponding to the serving cell and the measurement object; or, if the first timer corresponding to the serving cell If the timer is not started, start the first timer corresponding to the serving cell;

Determining the radio link connection status of the serving cell based on the first timer;

Wherein, the second timer is started when an abnormality occurs in the radio link of the serving cell.
The terminal device according to claim 18, wherein the terminal device further comprises:

The receiving unit is configured to receive configuration parameters sent by the network device corresponding to the serving cell.
The terminal device according to claim 19, wherein the configuration parameter includes at least one of the following:

First timer parameters independently configured for different measurement objects;

Whether to apply the first timer is configured for one or more measurement events.
The terminal device according to claim 19 or 20, wherein the configuration parameter is carried in a radio resource control RRC message.
The terminal device according to any one of claims 18 to 21, wherein the value of the first timer is a first timer parameter corresponding to the measurement object.
The terminal device according to any one of claims 18 to 22, wherein the processing unit is configured to determine the radio link connection status of the serving cell based on whether the first timer expires.
The terminal device according to any one of claims 18 to 23, wherein, in a case where the terminal device receives an RRC message including the serving cell change, the processing unit is configured to execute the serving cell change.
The terminal device according to claim 24, wherein the processing unit is configured to stop a first timer running on all measurement objects corresponding to the serving cell and a second timer corresponding to the serving cell;

Alternatively, the processing unit is configured to stop the first timer corresponding to the serving cell and the second timer corresponding to the serving cell.
The terminal device according to any one of claims 18 to 23, wherein, if the first timers running on all measurement objects corresponding to the serving cell expire, the processing unit is configured to determine the serving cell And/or the radio link connection of the cell group where the serving cell is located fails.
The terminal device according to any one of claims 18 to 23, wherein, if the first timer corresponding to the serving cell times out, the processing unit is configured to determine the serving cell and/or the serving cell The wireless link connection of the cell group in which it is located has failed.
The terminal device according to any one of claims 18 to 27, wherein the serving cell includes at least one of the following:

PSCell of primary and secondary cell;

Primary cell PCell.
The terminal device according to any one of claims 18 to 28, wherein the first timer is T312;

And/or, the second timer is T310.
A network device, the network device includes:

The sending unit is configured to send configuration parameters for a first timer to a terminal device, where the first timer is used for the terminal device to determine a wireless link connection state.
The network device according to claim 30, wherein the configuration parameter includes at least one of the following:

First timer parameters independently configured for different measurement objects;

Whether to apply the first timer is configured for one or more measurement events.
The network device according to claim 30 or 31, wherein the configuration parameter is carried in a radio resource control RRC message.
The network device according to any one of claims 30 to 32, wherein the network device comprises at least one of the following:

The secondary node SN corresponding to the PSCell of the primary and secondary cell;

The primary node MN corresponding to the primary cell PCell.
The network device according to any one of claims 30 to 33, wherein the first timer is T312.
A terminal device includes a processor and a memory for storing a computer program that can run on the processor, wherein:

When the processor is used to run the computer program, it executes the steps of the method for determining a wireless link connection state according to any one of claims 1 to 12.
A network device including a processor and a memory for storing a computer program that can run on the processor, wherein:

When the processor is used to run the computer program, it executes the steps of the method for determining a wireless link connection state according to any one of claims 13 to 17.
A storage medium storing an executable program, and when the executable program is executed by a processor, the method for determining a wireless link connection state according to any one of claims 1 to 12 is implemented.
A storage medium storing an executable program, and when the executable program is executed by a processor, the method for determining a wireless link connection state according to any one of claims 13 to 17 is implemented.
A computer program product, comprising computer program instructions that cause a computer to execute the method for determining a wireless link connection state according to any one of claims 1 to 12.
A computer program product comprising computer program instructions that cause a computer to execute the method for determining a wireless link connection state according to any one of claims 13 to 17.
A computer program that enables a computer to execute the above-mentioned terminal device to execute the method for determining the connection status of a wireless link according to any one of claims 1 to 12.
A computer program that enables a computer to execute the above-mentioned network device to execute the method for determining the connection status of a wireless link according to any one of claims 13 to 17.