WO2021007729A1 - 一种信息反馈方法、设备及存储介质 - Google Patents

一种信息反馈方法、设备及存储介质 Download PDF

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Publication number
WO2021007729A1
WO2021007729A1 PCT/CN2019/095879 CN2019095879W WO2021007729A1 WO 2021007729 A1 WO2021007729 A1 WO 2021007729A1 CN 2019095879 W CN2019095879 W CN 2019095879W WO 2021007729 A1 WO2021007729 A1 WO 2021007729A1
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WIPO (PCT)
Prior art keywords
terminal device
information
idle state
cell
network device
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PCT/CN2019/095879
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English (en)
French (fr)
Inventor
杨宁
王淑坤
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2019/095879 priority Critical patent/WO2021007729A1/zh
Priority to EP19937818.3A priority patent/EP3986085A4/en
Priority to CN201980093981.XA priority patent/CN113574959B/zh
Publication of WO2021007729A1 publication Critical patent/WO2021007729A1/zh
Priority to US17/647,365 priority patent/US20220132618A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • H04W36/0038—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information of security context information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305—Handover due to radio link failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular to an information feedback method, equipment and storage medium.
  • the state of the terminal device includes the IDLE state, the inactive (INACTIVE) state and the connected (CONNECTED) state; the terminal device is performing the connection re-establishment process, or the terminal device is in INACTIVE In the state, the terminal device may return to IDLE state due to abnormal reasons, which is also called abnormal return to IDLE state. Therefore, how to optimize the network system parameters to prevent the terminal device from returning to the IDLE state due to abnormal reasons is an urgent problem to be solved.
  • embodiments of the present invention provide an information feedback method, device, and storage medium, which can prevent the terminal device from returning to the IDLE state due to abnormal reasons.
  • an embodiment of the present invention provides an information feedback method, including: in a case where a terminal device abnormally returns to an idle state, the terminal device obtains relevant information about an abnormal return to an idle state;
  • the terminal device When the terminal device re-establishes a connection with the network device, the relevant information is sent to the network device.
  • an embodiment of the present invention provides an information feedback method, including: a network device receives information related to an abnormal return to an idle state sent by a terminal device;
  • the related information is acquired by the terminal device when the terminal device abnormally returns to an idle state, and is sent when the connection with the network device is established again.
  • an embodiment of the present invention provides a terminal device, including: a processing unit, configured to obtain information about the abnormal return to the idle state when the terminal device abnormally returns to the idle state;
  • the first sending unit is configured to send the related information to the network device when the terminal device re-establishes a connection with the network device.
  • an embodiment of the present invention provides a network device, the network device includes: a second receiving unit configured to receive related information sent by a terminal device that abnormally returns to an idle state;
  • the related information is acquired by the terminal device when the terminal device abnormally returns to an idle state, and is sent when the connection with the network device is established again.
  • an embodiment of the present invention 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 when the computer program is running. The steps of the information feedback method performed by the device.
  • an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the above-mentioned information feedback method executed by the network device is implemented.
  • the information feedback method provided by the embodiment of the present invention includes: when the terminal device abnormally returns to the idle state, the terminal device obtains relevant information about the abnormal return to the idle state; and when the terminal device re-establishes a connection with the network device , Sending the related information to the network device. In this way, the terminal device reports information related to the abnormal return to the idle state to the network device, so that the network device can optimize the network system parameters and prevent the terminal device from returning to the idle state abnormally again due to the same reason.
  • Figure 1 is a schematic diagram of information reporting of the first category and the second category of the present invention.
  • Fig. 2 is a schematic diagram of the information reporting process of the third category of the present invention.
  • Figure 3 is a schematic diagram of the relationship among the inactive state, the idle state and the connected state of the present invention.
  • FIG. 4 is a schematic diagram of the terminal device of the present invention entering the inactive state from the connected state
  • Fig. 5 is a schematic diagram of the processing flow for the terminal device of the present invention to restore the connection with the network device
  • FIG. 6 is a schematic diagram of the composition structure of a communication system according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an optional processing flow of an information feedback method applied to a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a process of performing reconstruction on a terminal device according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of the relationship between the state of T311 and the terminal device according to the embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the relationship between the state of T301 and the terminal device according to the embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the composition structure of a terminal device according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of the composition structure of a network device according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of the hardware composition structure of an electronic device according to an embodiment of the present invention.
  • the terminal equipment operates in accordance with the network configuration regardless of whether it is in the idle state, inactive state, or link state. For example, when the terminal device is in the idle state, the terminal device performs cell selection and cell reselection according to the network configuration; when in the inactive state, the terminal device updates the RAN Notification Area (RNA) according to the network configuration; in the connected state , The terminal equipment performs operations such as bearer establishment, data transmission and cell handover according to the network configuration. For each operation, the terminal device needs to report information to the network device. The information reported by the terminal device to the network device is roughly divided into the following three categories.
  • the first category is reporting based on terminal equipment.
  • the information that the terminal device reports to the network device is: the information that the terminal device needs to report to complete the basic operation. For example, the terminal device expects the network device to give a measurement report of the handover command in time, and the terminal device expects the network device to give a scheduling request for uplink data scheduling and/or a storage status report (BSR) in time.
  • BSR storage status report
  • MDT Minimization of Drive Tests
  • RLF Radio Link Failure
  • CEF Connection Establishment Failure
  • the terminal equipment reports information for different scenarios, which can assist the network equipment to determine the cause of the problem and optimize the network by adjusting parameters.
  • MDT focuses on coverage issues such as network coverage holes, weak coverage, pilot pollution, over coverage, overlapping coverage, and uplink coverage. Collect information from two aspects of network equipment and terminal equipment, make problem judgments, adjust network parameters, and optimize network configuration.
  • the main information reported by the terminal equipment includes: cell reference signal receiving power (Reference Signal Receiving Power, RSRP), reference signal receiving quality (Reference Signal Receiving Quality, RSRQ), beam RSRP or beam RSRQ, position information, time information, etc.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • beam RSRP or beam RSRQ position information, time information, etc.
  • RLFReport is mainly for reporting the situation when wireless link failure and handover failure related problems occur, so that network equipment can determine the cause of the wireless link failure or handover failure problem, and optimize network parameters.
  • the information to be reported by the main terminal equipment includes the RSRP or RSRQ of the serving cell, location information, and so on.
  • the CEF Report mainly reports the situation when problems related to connection establishment failure occur, so that network devices can determine the cause of the connection establishment failure problem and optimize terminal device access.
  • the main reported information includes the identity of the cell where the failure occurred (Identifier, ID), the RSRP or RSRQ of the serving cell, location information, timestamp, the number of random access preambles (Preamble) attempted, and the maximum transmission power.
  • the terminal device will complete the connection establishment message (RRC Connection Establishment Complete) carries indication information, which indicates that the terminal device stores MDT, RLF, or CEF data.
  • the network device After receiving the instruction information, the network device will send a terminal information request (UE Information Request) message to the terminal device to trigger the terminal device to report the stored data; after the terminal device receives the UE Information Request message, it will pass the terminal
  • the information report (UE Information Response) message reports the stored data to the network device.
  • the reports of the first category and the second category are reports optimized for network parameters, that is, all measurements and reports of the terminal equipment are for making the network more optimized.
  • UE Assistance Information reporting there is also a report for the status of the terminal device, which is called UE Assistance Information reporting, that is, the third type of information reporting.
  • the third type of information reporting process is shown in Figure 2.
  • the network device configures the terminal device to report through the reconfiguration message, and the terminal device completes the UE Assistance Information report to the network device.
  • terminal equipment introduces three types of UE Assistance Information reporting, which are:
  • the power optimization configuration of terminal equipment tends to be mainly used when the power of the terminal equipment is low.
  • the terminal device overheating indication whose main function is that when the terminal device is overheated, through the indication and the given preference parameters, it is expected that the network device can configure the terminal device according to the parameters, thereby reducing the heat of the terminal device.
  • the terminal device in addition to the idle state and the connected state existing in the LTE system, the terminal device also introduces a new state—the inactive state.
  • the inactive state is a state between the idle state and the connected state.
  • the main functions of inactive terminal equipment include: public land mobile network (Public Land Mobile Network, PLMN) selection, cell selection, receiving system information, receiving RAN paging messages, etc.; inactive terminal equipment can be
  • PLMN Public Land Mobile Network
  • inactive terminal equipment can be The network side retains the context of the terminal device. When the terminal device has data transmission, it can not only restore the connection as soon as possible, but also reduce the frequency of measurement and reporting by the terminal device, and reduce the power consumption of the terminal device.
  • the schematic diagram of the relationship between the inactive state, the idle state and the connected state is shown in Figure 3:
  • the terminal device enters the connected state from the idle state through connection establishment, and enters the idle state from the connected state through connection release;
  • the connected state enters the inactive state, and the inactive state enters the connected state through the connection recovery;
  • the terminal device can also enter the idle state from the inactive state.
  • a schematic diagram of a terminal device entering an inactive state from a connected state as shown in FIG. 4, a network device sends a radio resource control (Radio Resource Control, RRC) release (Release) message to the terminal device to make the terminal device enter the inactive state.
  • RRC Radio Resource Control
  • the terminal device When the terminal device needs to perform data transmission, the terminal device restores the connection with the network device through the recovery process, thereby performing data transmission, and the terminal device restores the connection with the network device.
  • the processing flow diagram is shown in Figure 5, which is in an inactive state.
  • the terminal device sends an RRC recovery request to the network device, and the network device sends a request to obtain the UE context to the network device that served the terminal device last; the network device initiates connection recovery to the network device after obtaining the UE context; after the UE is in the connected state, Initiate an RRC recovery complete message to the network device.
  • the network device sends a path switch request to an Authentication Management Function (AMF) entity, and after receiving the path switch request response, the network device requests the network device last served by the terminal device to release the UE context.
  • AMF Authentication Management Function
  • the reporting of abnormal information performed by the terminal device is mainly for coverage problems, wireless link failure problems, and abnormal connection establishment problems; but in wireless networks, the terminal device is in the process of establishing a connection, reestablishing the connection, or inactive. In the state, the terminal device abnormally returns to the idle state due to various reasons, and the abnormal return of the terminal device to the idle state is an abnormal event.
  • the reporting of abnormal events has not yet been defined.
  • the present invention provides an information feedback method.
  • the information feedback method in the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communications (GSM) system, Code Division Multiple Access (GSM) Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), LTE system, LTE Frequency Division Duplex (Frequency Division Duplex) , FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc. .
  • GSM Global System of Mobile Communications
  • GSM Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE system LTE Frequency Division Duplex (Frequency Division Duplex)
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication
  • 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.
  • 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.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches
  • 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 lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections ; 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.
  • PSTN public switched telephone networks
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL
  • 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”.
  • mobile terminals include, but are not limited to, satellites 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 phone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • 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.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • Figure 6 exemplarily shows one network device and two terminal devices.
  • 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.
  • 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.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 with communication functions 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 other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
  • An optional processing flow diagram of an information feedback method applied to a terminal device according to an embodiment of the present invention, as shown in FIG. 7, includes the following steps:
  • Step S201 In the case that the terminal device abnormally returns to the idle state, the terminal device obtains relevant information about the abnormal return to the idle state.
  • Step S202 When the terminal device establishes a connection with the network device again, send the relevant information to the network device.
  • step S201 there are at least two situations in which the terminal device abnormally returns to the idle state, which are:
  • the terminal device returns to the idle state due to failure to perform reconstruction, and the terminal device returns to the idle state directly from the inactive state.
  • the terminal device obtains relevant information about returning to the idle state.
  • the terminal device will perform the Re-establishment process in the following situations:
  • the terminal device When RLF is detected, the terminal device will perform the reconstruction process; when HOF is detected, the terminal device will perform the reconstruction process; when the synchronization reconfiguration failure is detected, the terminal device will perform the reconstruction process; when an asynchronous reconfiguration is detected When the configuration fails, the terminal device will perform the reconstruction process; when the integrity check of the reconstruction message is detected to be failed, the terminal device will perform the reconstruction process.
  • FIG. 8 A schematic diagram of the process of the terminal device performing reconstruction. As shown in FIG. 8, the terminal device sends a reconstruction request message to the network device, the network device instructs the terminal device to perform cell reconstruction, and the terminal device sends a reconstruction complete message to the network device. However, the terminal device may fail to rebuild in the following situations during the reconstruction process:
  • the RRC security is not started; in the second case, the reestablishment timer (T311) has timed out, indicating that the terminal device has no way to select the cell for re-establishment; in the third case, the reestablishment message reception timer (T301) has timed out , It means that the terminal device cannot receive the RRC re-establishment message during the re-establishment; in the fourth case, the integrity protection of the RRC re-establishment message fails.
  • RRC security is not activated. It may be because the network equipment does not want terminal equipment to access during the reconstruction process, so RRC security is not activated; it may also be for pure signaling-related procedures, and the network equipment thinks that it does not need to be activated. RRC rebuilds safely. Therefore, RRC security does not initiate the normal behavior of network equipment.
  • T311 failure indicates that the terminal device failed to select a suitable cell for reconstruction during the reconstruction process.
  • the terminal device records at least one of the following abnormal return to idle state related information: the reason for the failure of the reconstruction timer is that the reconstruction timer expires, the location information when the reconstruction timer expires, The time stamp information when the reconstruction timer expires, the measurement information of the serving cell, and the measurement information of the neighboring cell.
  • the measurement information includes measurement parameters for the cell and/or measurement parameters for the strongest beam of the cell; the measurement parameters include at least one of the following: Reference Signal Receiving Power (RSRP), reference Signal receiving quality (Reference Signal Receiving Quality, RSRQ) and signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR). Therefore, the measurement information of the serving cell includes at least: RSRP, RSRQ, and SINR of the serving cell, and at least one of the RSRP, RSRQ, and SINR of the strongest beam of the serving cell.
  • the measurement information of the neighboring cell includes at least: RSRP, RSRQ, and SINR of the neighboring cell, and at least one of the RSRP, RSRQ, and SINR of the strongest beam of the neighboring cell.
  • the terminal device starts T301 when sending a reestablishment request message (RRC Reestablishment Request) to the network device, if the terminal device receives the message before T301 fails
  • RRC Reestablishment Request a reestablishment request message
  • the reestablishment message (RRC Reestablishment) sent by the network device terminates T301; if the terminal device does not receive the RRC Reestablishment sent by the network device before T301 fails or times out, the terminal device enters an idle state.
  • the terminal device does not receive the RRC Reestablishment: one is that the network device receives the RRC Reestablishment Request sent by the terminal device, but the network device does not feed back the RRC Reestablishment to the terminal device. The other is that the network device fails to receive the RRC Reestablishment Request sent by the terminal device due to some reasons.
  • the terminal device records at least one of the following information related to abnormal return to idle state:
  • the identification of the rebuilt cell, the reason why the terminal device returned to the idle state, the preamble used by the terminal device to send the rebuild request message to the network device, and the reason why the terminal device sends the rebuild request message to the network device The used synchronization signal block (Synchronization Signal Block, SSB), the maximum transmit power used by the terminal device to send a reconstruction request message to the network device, and the number of attempts of the preamble on the SSB.
  • the reason why the terminal device returns to the idle state includes: T301 timeout, or the terminal device does not receive RRC Reestablishment.
  • the cell needs to obtain the context information of the terminal device in the original serving cell of the terminal device; wherein the context information includes integrity protection information.
  • the integrity protection key needs to be calculated; if the calculated integrity key does not match the integrity key of the terminal device, the RRC fails to rebuild the message integrity protection and the terminal device returns to an idle state.
  • the terminal device Since the integrity protection failure of the RRC reconstruction message involves the integrity protection key stored by the terminal device and various information about the reconstruction cell, if the integrity protection of the RRC reconstruction message fails, the terminal device records the following abnormal return to idle state. At least one item in the information:
  • the reason why the terminal device returns to the idle state is the failure of the integrity protection of the reestablishment message, the reestablishment cell ID (Cell ID) of the failed integrity protection, the physical cell ID (Physical Cell ID, PCI) and/or the frequency (Absolute) of the reestablished cell. Radio Frequency Channel Number, ARFCN), the integrity protection key that the terminal device has stored, and the Next Hop Chaining Count (NCC). Among them, NCC is used to update the key used by the terminal device.
  • the following describes the case where the terminal device returns to the idle state directly from the inactive state, and the terminal device obtains relevant information about returning to the idle state.
  • the terminal device when the terminal device is in the inactive state, there is usually no strong reason to return to the idle state. Unless the terminal device is reselected to another access system, the terminal device returns to the idle state; or the network device actively releases the terminal device to the idle state after the terminal device resumes the connection state.
  • the situation that the terminal device returns to the idle state from the inactive state due to an abnormal event may include:
  • the terminal device when the terminal device initiates an RRC Resume Request message (RRC Resume Request), T319 is started, but T319 times out or fails.
  • RRC Resume Request RRC Resume Request
  • the terminal device receives the paging message of the core network.
  • the integrity protection verification of the RRC Resume sent by the network device fails.
  • the T319 timeout indicates that the terminal device did not receive the RRC Resume after sending the RRC Resume Request; the terminal device can record one of the number of random access by the terminal device, the maximum transmission power, whether a collision occurred or other information Multiple.
  • the terminal device when the terminal device is in the inactive state, if the network device sends data to the terminal device, it should first find the terminal device through Radio Access Network (RAN) paging; only in RAN paging In the case of failure to find the terminal device, the network device falls back to the core network paging mode to find the terminal device in a wider range. Therefore, when the terminal device receives the core network paging in the inactive state, the terminal device can record at least one of the following related information about abnormal return to the idle state:
  • RAN Radio Access Network
  • the serving cell information of the terminal device may be the current serving cell information of the terminal device, such as a serving cell ID; the serving cell ID includes a physical cell ID and/or a global cell ID.
  • the RNA information in the inactive state includes: RNA ID and/or cell ID included.
  • the measurement information includes measurement parameters for the cell, and/or measurement parameters for the strongest beam of the cell; the measurement parameters include at least one of the following: RSRP, RSRQ, and SINR. Therefore, the measurement information of the serving cell includes at least: RSRP, RSRQ, and SINR of the serving cell, and at least one of the RSRP, RSRQ, and SINR of the strongest beam of the serving cell.
  • the measurement information of the neighboring cell includes at least: RSRP, RSRQ, and SINR of the neighboring cell, and at least one of the RSRP, RSRQ, and SINR of the strongest beam of the neighboring cell.
  • the cell needs to calculate an integrity protection key based on the context information of the terminal device; if the calculated integrity key does not match the integrity key of the terminal device, Then the RRC connection restoration message integrity protection fails, and the terminal device returns to an idle state.
  • the terminal device Since the integrity protection failure of the RRC connection recovery message involves the integrity protection key stored by the terminal device and various information of the recovery cell, if the integrity protection of the RRC connection recovery message fails, the terminal device records the following exception and returns to the idle state At least one item of related information:
  • the reason for the terminal device returning to the idle state is the failure of the integrity protection of the connection recovery message, the recovery cell ID (Cell ID) where the integrity protection failed, the PCI and/or ARFCN of the recovery cell, and the integrity protection that the terminal device has stored Key, NCC.
  • NCC is used to update the key used by the terminal device.
  • the terminal device when the terminal device sends the related information to the network device, the terminal device may carry the related information that abnormally returns to the idle state when the terminal device reports the terminal information to the network device.
  • the terminal device receives the reconfiguration message sent by the network device before sending the information related to the abnormal return to the idle state to the network device, the reconfiguration message indicating whether the terminal can send related abnormal information or abnormal indication Information; the terminal device may send terminal auxiliary information to the network device based on the reconfiguration message; the terminal auxiliary information carries abnormal indication information or abnormal information, and the abnormal indication information indicates that the terminal device stores The exception returns information related to the idle state.
  • the terminal device can also report the information related to the abnormal return to the idle state to the network device according to the reporting methods of RLF, CEF, and MDT in the prior art; that is, according to the processing flow shown in FIG.
  • the establishment request message or the connection establishment completion message carries indication information indicating that the terminal device stores the relevant information of the abnormal return to idle state; and reports in the subsequent terminal information report that the terminal device stores the abnormal return to idle state Information about the status.
  • the information feedback method provided by the embodiment of the present invention clarifies the information that the terminal device needs to record and how to record the event when the terminal device is in the inactive state or the terminal device returns to the idle state due to abnormal reasons.
  • the information is reported to the network device, so that the terminal device can report the relevant information that the terminal device returns to the idle state due to abnormal reasons to the network device, so that the network device can further optimize the system parameters and avoid such events from happening again.
  • an embodiment of the present invention provides a terminal device.
  • the composition structure of the terminal device 400 as shown in FIG. 11, includes:
  • the processing unit 401 is configured to obtain related information about the abnormal return to the idle state when the terminal device abnormally returns to the idle state;
  • the first sending unit 402 is configured to send the relevant information to the network device when the terminal device re-establishes a connection with the network device.
  • the abnormal return to the idle state includes: the terminal device returns to the idle state due to failure to perform reconstruction.
  • the related information includes at least one of the following: the reason for the failure of the reconstruction timer is that the reconstruction timer expires, and the reconstruction timer The location information when the timeout expires, the time stamp information when the reconstruction timer expires, and the measurement information of the serving cell and/or neighboring cells.
  • the related information includes at least one of the following: the identity of the reestablished cell, the reason why the terminal device returns to an idle state, the preamble used by the terminal device to send the reestablishment request message to the network device, the The SSB used by the terminal device to send the reconstruction request message to the network device, the maximum transmit power used by the terminal device to send the reconstruction request message to the network device, and the number of attempts of the preamble on the SSB; wherein, the Reasons for the terminal device to return to the idle state include: the rebuild message receiving timer expires, or the terminal device does not receive the rebuild message.
  • the related information includes at least one of the following: the reason for the terminal device returning to the idle state is the failure of the integrity protection of the reestablishment message, the identity of the reestablished cell where the integrity protection failed, the PCI and/or ARFCN, and the terminal The integrity protection key that the device has stored, and the NCC.
  • the abnormal return to the idle state includes: the terminal device returns to the idle state directly from the inactive state.
  • the related information includes at least one of the following: the reason for the terminal device returning to the idle state is the integrity of the connection recovery message The protection failure, the identity of the reconstructed cell where the integrity protection failed, the PCI and/or ARFCN, the integrity protection key stored by the terminal device, and the NCC.
  • the related information includes at least one of the following: serving cell information of the terminal device, wireless area information in the inactive state, Measurement information of the serving cell and/or neighboring cells.
  • the current serving cell information of the terminal device includes: the current serving cell identity of the terminal device.
  • the wireless area information includes: a wireless area identifier, and/or a cell identifier included in the wireless area.
  • the measurement information includes: measurement parameters for the cell, and/or measurement parameters for the strongest beam of the cell.
  • the measurement parameter includes at least one of the following: RSRP, RSRQ, and SINR.
  • the first sending unit 402 is configured to report terminal information to the network device, and the terminal information carries the related information.
  • the terminal device further includes a first receiving unit 403 configured to receive a reconfiguration message sent by the network device;
  • the first sending unit 402 is configured to send terminal auxiliary information to the network device based on the reconfiguration message; the terminal auxiliary information carries indication information, and the indication information indicates that the terminal device stores the Related Information.
  • an embodiment of the present invention also provides a network device.
  • the composition structure of the network device 500 includes:
  • the second receiving unit 501 is configured to receive related information sent by a terminal device that abnormally returns to an idle state;
  • the related information is acquired by the terminal device when the terminal device abnormally returns to an idle state, and is sent when the connection with the network device is established again.
  • the abnormal return to the idle state includes: the terminal device returns to the idle state due to failure to perform reconstruction.
  • the related information includes at least one of the following: the reason for the failure of the reconstruction timer is that the reconstruction timer expires, and the reconstruction timer The location information when the timeout expires, the time stamp information when the reconstruction timer expires, and the measurement information of the serving cell and/or neighboring cells.
  • the related information includes at least one of the following: the identity of the reestablished cell, the reason why the terminal device returns to an idle state, the preamble used by the terminal device to send the reestablishment request message to the network device, the The SSB used by the terminal device to send the reconstruction request message to the network device, the maximum transmit power used by the terminal device to send the reconstruction request message to the network device, and the number of attempts of the preamble on the SSB; wherein, the Reasons for the terminal device to return to the idle state include: the rebuild message receiving timer expires, or the terminal device does not receive the rebuild message.
  • the related information includes at least one of the following: the reason for the terminal device returning to the idle state is the failure of the integrity protection of the reestablishment message, the identity of the reestablished cell where the integrity protection failed, the PCI and/or ARFCN, and the terminal The integrity protection key that the device has stored, and the NCC.
  • the related information further includes at least one of the following: the reason for the terminal device returning to the idle state is the failure of the integrity protection of the connection recovery message, the identity of the recovery cell whose integrity protection has failed, the PCI of the recovery cell and/or ARFCN, the integrity protection key that the terminal device has stored, and the NCC.
  • the abnormal return to the idle state includes: the terminal device returns to the idle state directly from the inactive state.
  • the related information includes at least one of the following: the reason for the terminal device returning to the idle state is the integrity of the connection recovery message The protection failure, the identity of the reconstructed cell where the integrity protection failed, the PCI and/or ARFCN, the integrity protection key stored by the terminal device, and the NCC.
  • the related information includes at least one of the following: serving cell information of the terminal device, wireless area information in the inactive state, Measurement information of the serving cell and/or neighboring cells.
  • the related information further includes at least one of the following: the reason for the terminal device returning to the idle state is the failure of the integrity protection of the connection recovery message, the identity of the recovery cell whose integrity protection has failed, the PCI of the recovery cell and/or ARFCN, the integrity protection key that the terminal device has stored, and the NCC.
  • the current serving cell information of the terminal device includes: the current serving cell identity of the terminal device.
  • the wireless area information includes: a wireless area identifier, and/or a cell identifier included in the wireless area.
  • the measurement information includes: measurement parameters for the cell, and/or measurement parameters for the strongest beam of the cell.
  • the measurement parameter includes at least one of the following: RSRP, RSRQ, and SINR.
  • the second receiving unit 501 is configured to receive terminal information reported by the terminal device, and the terminal information carries the related information.
  • the network device 500 further includes: a second sending unit 502 configured to send a reconfiguration message to the terminal device;
  • the second receiving unit is further configured to receive terminal auxiliary information
  • the terminal auxiliary information carries indication information, which is sent by the terminal device based on the reconfiguration message, and the indication information indicates that the terminal device stores the related information.
  • An embodiment of the present invention also provides a terminal 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 terminal device when the computer program is running. The steps of the information feedback method.
  • An embodiment of the present invention 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. The steps of the information feedback method.
  • 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.
  • the bus system 705 is used to implement connection and communication between these components.
  • the bus system 705 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 705 in FIG. 13.
  • the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory may 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 -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage.
  • the volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • SSRAM synchronous static random access memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhanced -Type synchronous dynamic random access memory
  • SLDRAM SyncLink Dynamic Random Access Memory
  • direct memory bus random access memory DRRAM, Direct Rambus Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiment of the present invention 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 invention 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.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 7022.
  • the method disclosed in the foregoing embodiment of the present invention 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 capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits 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, etc.
  • the processor 701 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention 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.
  • the electronic device 700 may be used 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 methods.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • CPLD complex programmable logic device
  • FPGA field-programmable Logic Device
  • controller MCU
  • MPU MPU
  • the embodiment of the present application also provides a storage medium for storing computer programs.
  • 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.
  • the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • 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 functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Abstract

本发明公开了一种信息反馈方法，包括：在终端设备异常返回空闲状态的情况下，所述终端设备获取异常返回空闲状态的相关信息；所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。本发明还公开了另一种信息反馈方法、设备及存储介质。

Description

一种信息反馈方法、设备及存储介质 技术领域
本发明涉及无线通信技术领域，尤其涉及一种信息反馈方法、设备及存储介质。
背景技术
在新无线(New Radio，NR)系统中，终端设备的状态包括空闲(IDLE)状态、非激活(INACTIVE)状态和连接(CONNECTED)状态；终端设备在执行连接重建过程时，或者终端设备处于INACTIVE状态时，终端设备均可能会由于异常原因返回IDLE状态，也称为异常返回IDLE状态。因此，如何进行网络系统参数优化，避免终端设备由于异常原因返回IDLE状态是亟需解决的问题。
发明内容
为解决上述技术问题，本发明实施例提供一种信息反馈方法、设备及存储介质，能够避免终端设备由于异常原因返回IDLE状态。
第一方面，本发明实施例提供一种信息反馈方法，包括：在终端设备异常返回空闲状态的情况下，所述终端设备获取异常返回空闲状态的相关信息；
所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。
第二方面，本发明实施例提供一种信息反馈方法，包括：网络设备接收终端设备发送的异常返回空闲状态的相关信息；
所述相关信息在所述终端设备异常返回空闲状态的情况下，由所述终端设备获取，并在与所述网络设备再次建立连接时发送。
第三方面，本发明实施例提供一种终端设备，包括：处理单元，配置为在终端设备异常返回空闲状态的情况下，获取异常返回空闲状态的相关信息；
第一发送单元，配置为所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。
第四方面，本发明实施例提供一种网络设备，所述网络设备包括：第二接收单元，配置为接收终端设备发送的异常返回空闲状态的相关信息；
所述相关信息在所述终端设备异常返回空闲状态的情况下，由所述终端设备获取，并在与所述网络设备再次建立连接时发送。
第五方面，本发明实施例提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的信息反馈方法的步骤。
第六方面，本发明实施例提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述网络设备执行的信息反馈方法。
本发明实施例提供的信息反馈方法，包括：在终端设备异常返回空闲状态的情况下，所述终端设备获取异常返回空闲状态的相关信息；并在所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。如此，终端设备通过将异常返回空闲状态的相关信息上报至网络设备，使得网络设备能够对网络系统参数进行优化，避免终端设备再次由于相同的原因异常返回空闲状态。
附图说明
图1为本发明第一种类别和第二种类别的信息上报示意图；
图2为本发明第三种类别的信息上报流程示意图；
图3为本发明非激活状态、空闲态与连接态三者的关系示意图；
图4为本发明终端设备由连接状态进入非激活状态的示意图；
图5为本发明终端设备恢复与网络设备的连接的处理流程示意图
图6为本发明实施例通信系统的组成结构示意图；
图7为本发明实施例提供的应用于终端设备的信息反馈方法的可选处理流程示意图；
图8为本发明实施例终端设备执行重建的流程示意图
图9为本发明实施例T311与终端设备的状态的关系示意图；
图10为本发明实施例T301与终端设备的状态的关系示意图；
图11为本发明实施例终端设备的组成结构示意图；
图12为本发明实施例网络设备的组成结构示意图；
图13为本发明实施例电子设备的硬件组成结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点和技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
在对本发明实施例提供的信息反馈方法进行详细说明之前，先对相关技术中终端设备向网络设备上报信息进行简要说明。
在长期演进(Long Term Evolution，LTE)和NR等蜂窝网络中，终端设备无论在空闲状态、非激活状态、或者链接状态时，均按照网络配置进行操作。如终端设备在空闲状态时，终端设备按照网络配置进行小区选择和小区重选；在非激活状态时，终端设备按照网络配置进行无线识别区域(RAN Notification Area，RNA)的更新；在连接态时，终端设备按照网络配置进行承载建立、数据传输和小区切换等操作。针对每种操作，终端设备均需要向网络设备上报信息，终端设备向网络设备上报信息大体恶意分为如下三种类别。
第一种类别，终端设备的基础上报。
终端设备基础上报中，终端设备向网络设备上报的信息为：终端设备完成基本操作所需要上报的信息。例如，终端设备希望网络设备及时给出切换命令的测量上报，终端设备希望网络设备及时给出上行数据调度的调度请求和/或存储状态上报(Buffer Status Report，BSR)。
第二种类别，终端设备辅助网络设备优化的上报
当前无线网络中，由于网络参数成千上万，因此在网络参数配置过程中，会存在参数配置复杂，部分参数较难协调或者容易配错的问题。基于该问题，在LTE和NR的研究过程中，运营商提出了自优化网络(Self-Optimization Network，SON)的概念，希望能够通过终端的参数上报和网络的统计信息使得网络能够基于这些信息自动针对网络参数进行规划和优化。
为了网络进行优化，在LTE和NR网络中引入了最小化路测(Minimization of Drive Tests，MDT)、无线链路失败(Radio Link Failure，RLF)上报(Report)、连接建立失败(Connection Establishment Failure，CEF)上报(Report)等方式。终端设备针对不同场景进行信息上报，能够辅助网络设备判断问题发送的原因，通过调整参数的方式进行 网络优化。
其中，MDT重点针对网络覆盖空洞、弱覆盖、导频污染、过覆盖、覆盖重叠、以及上行覆盖等覆盖问题。从网络设备和终端设备两个方面收集信息，进行问题判断，并调整网络参数，优化网络配置。终端设备主要上报的信息包括：小区参考信号接收功率(Reference Signal Receiving Power，RSRP)、参考信号接收质量(Reference Signal Receiving Quality，RSRQ)、波束RSRP或波束RSRQ、位置信息、时间信息等。
RLF Report主要针对无线链路失败和切换失败相关问题产生时的情况进行上报，从而使得网络设备能够判断造成的无线链路失败或切换失败问题的原因，并且进行网络参数优化。主终端设备要上报的信息包括服务小区的RSRP或RSRQ、位置信息等内容。
CEF Report主要针对连接建立失败相关问题产生时的情况进行上报，从而使得网络设备能够判断造成的连接建立失败问题的原因，并且进行终端设备接入优化。主要上报的信息包括发生失败的小区标识(Identifier，ID)、服务小区的RSRP或RSRQ、位置信息、时间戳、尝试的随机接入前导码(Preamble)数量、最大的发射功率等内容。
上述信息上报中记录MDT、RLF Report和CEF Report的基本流程较为类似，第一中类别和第二种类别的信息上报流程，如图1所示，终端设备会在连接建立完成消息中(RRC Connection Establishment Complete)携带指示信息，所述指示信息指示所述终端设备存储了MDT、RLF或者CEF的数据。网络设备在收到该指示信息之后，会向终端设备发送终端信息请求(UE Information Request)消息，以触发终端设备上报所存储的数据；终端设备在收到UE Information Request消息后，则会通过终端信息上报(UE Information Response)消息向网络设备上报所存储的数据。
第三种类别，终端设备体验优化上报
第一种类别和第二种类别的上报均是针对网络参数进行优化的上报，即终端设备所有的测量和上报均是为了使网络更加优化。在协议设计中，还存在一种针对终端设备的状况进行的上报，称为终端设备辅助信息(UE Assistance Information)上报，即第三种类别的信息上报。第三种类别的信息上报流程，如图2所示，网络设备通过重配置消息配置终端设备进行上报，终端设备向网络设备完成UE Assistance Information上报。
在LTE系统中，终端设备引入三种UE Assistance Information上报，分别是：
1)终端设备倾向的功率优化配置，主要作用是在终端设备电量较低时，期望网络设备能够为终端设备配置较为省电的网络配置。
2)终端设备倾向的最大物理下行共享信道(Physical Downlink Shared Channel，PDSCH)或物理上行共享信道(Physical Uplink Shared Channel，PUSCH)的带宽，主要作用是针对机器型通信(Machine-Type Communication，MTC)终端设备数据量较小且希望省电的情况下，期望网络设备能够按照终端设备实际期望的小带宽进行数据传输。
3)终端设备过热指示，主要作用是在终端设备发生过热时，通过该指示以及给出的倾向性的参数，期望网络设备能够按照参数对终端设备进行配置，从而降低终端设备的热量。
在NR系统中，也引入了与上述UE Assistance Information类似的辅助信息。并且，在NR网络中，终端设备除了具有LTE系统中存在的空闲状态和连接状态，还引入了新的状态—非激活状态。非激活状态为介于空闲状态和连接状态中间内的一种状态。处于非激活状态的终端设备的主要功能包括：公共陆地移动网络(Public Land Mobile Network，PLMN)选择、小区选择、接收系统信息、接收RAN寻呼消息等；处于非激活状态的终端设备既可以在网络侧保留终端设备的上下文，在终端设备有数据传输时不仅能够尽快恢复连接，还能够降低终端设备进行测量和上报的频率，降低终端设备的功 耗。非激活状态、空闲态与连接态的三者关系示意图，如图3所示：终端设备通过连接建立从空闲状态进入连接状态，通过连接释放从连接状态进入空闲状态；终端设备通过连接挂起从连接状态进入非激活状态，通过连接恢复从非激活状态进入连接状态；终端设备还可以从非激活状态进入空闲状态。其中，终端设备由连接状态进入非激活状态的示意图，如图4所示，网络设备向终端设备发送无线资源控制(Radio Resource Control，RRC)释放(Release)消息，使终端设备进入非激活状态。
当终端设备需要进行数据传输时，终端设备通过恢复流程恢复与网络设备的连接，从而进行数据传输，终端设备恢复与网络设备的连接的处理流程示意图，如图5所示，处于非激活状态的终端设备向网络设备发送RRC恢复请求，网络设备向为终端设备最后服务的网络设备发送获取UE上下文的请求；网络设备在获取到UE上下文之后，向网络设备发起连接恢复；UE处于连接状态后，向网络设备发起RRC恢复完成消息。网络设备向认证管理功能(Authentication Management Function，AMF)实体发送路径切换请求，在接收到路径切换请求响应之后，网络设备请求为终端设备最后服务的网络设备释放UE上下文。
相关技术中，终端设备进行的异常信息的上报主要针对覆盖问题、无线链路失败问题以及连接建立异常问题；但是在无线网络中，终端设备在连接建立、或连接重建、或终端设备处于非激活状态时，会由于种种原因导致终端设备异常返回空闲状态，终端设备异常返回空闲状态属于异常事件。然而，针对异常事件的上报目前尚未定义。
基于上述问题，本发明提供一种信息反馈方法，本申请实施例的信息反馈方法可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、LTE系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统或5G系统等。
示例性的，本申请实施例应用的通信系统100如图6所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动 终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图6示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图6示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
本发明实施例提供的应用于终端设备的信息反馈方法的可选处理流程示意图，如图7所示，包括以下步骤：
步骤S201，在终端设备异常返回空闲状态的情况下，所述终端设备获取异常返回空闲状态的相关信息。
步骤S202，所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。
在上述步骤S201中，终端设备异常返回空闲状态的情况至少包括两种，分别是：
终端设备由于执行重建失败而返回空闲状态，以及终端设备由非激活状态直接返回空闲状态。
下面针对终端设备由于执行重建失败而返回空闲状态的情况下，终端设备获取返回空闲状态的相关信息进行说明。
终端设备在下述几种情况下会执行重建(Re-establishment)流程：
当检测到RLF发生时，终端设备会执行重建流程；当检测到HOF发生时，终端设备会执行重建流程；当检测到同步重配置失败时，终端设备会执行重建流程；当检测到非同步重配置失败时，终端设备会执行重建流程；当检测到重建消息完整性保护(Integrity Check)失败时，终端设备会执行重建流程。
终端设备执行重建的流程示意图，如图8所示，终端设备向网络设备发送重建请求消息，网络设备指示终端设备进行小区重建，终端设备向网络设备发送重建完成消息。但是，终端设备在执行重建的过程中，可能在以下情况下重建失败：
第一种情况，RRC安全没有启动；第二种情况，重建定时器(T311)超时，表征 终端设备重建是没有办法选择到小区进行重建；第三种情况，重建消息接收定时器(T301)超时，表征终端设备重建时没有办法接收到RRC重建消息；第四种情况，RRC重建消息完整性保护失败。
针对第一种情况，RRC安全没有启动，可能是由于网络设备在重建过程中不希望终端设备接入，从而不启动RRC安全；也可能是针对纯信令相关的流程，网络设备认为不需要启动RRC安全进行重建。因此，在RRC安全没有启动属于网络设备的正常行为。
针对第二种情况，T311与终端设备的状态的关系示意图，如图9所示，终端设备在启动小区重建时启动T311，如果终端设备在重建过程中选择到合适的小区进行重建，则终止T311；否则，直至T311超时或T311失效，终端设备进入空闲状态。T311失效表征终端设备在重建过程中并未能选择到合适的小区进行重建。
在T311超时或失效的情况下，终端设备记录下述异常返回空闲状态的相关信息中的至少一项：重建定时器失效的原因为重建定时器超时、所述重建定时器超时时的位置信息、所述重建定时器超时时的时间戳信息、服务小区的测量信息、以及相邻小区的测量信息。
其中，测量信息包括针对小区的测量参数，和/或针对小区最强波束的测量参数；所述测量参数包括下述中的至少一项：参考信号接收功率(Reference Signal Receiving Power，RSRP)、参考信号接收质量(Reference Signal Receiving Quality，RSRQ)和信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)。因此，服务小区的测量信息至少包括：服务小区的RSRP、RSRQ和SINR，以及服务小区最强波束的RSRP、RSRQ和SINR中的至少一项。相邻小区的测量信息至少包括：相邻小区的RSRP、RSRQ和SINR，以及相邻小区最强波束的RSRP、RSRQ和SINR中的至少一项。
针对第三种情况，T301与终端设备的状态的关系示意图，如图10所示，终端设备在向网络设备发送重建请求消息(RRC Reestablishment Request)时启动T301，如果终端设备在T301失效前接收到网络设备发送的重建消息(RRC Reestablishment)，则终止T301；如果终端设备在T301失效或超时前，未接收到网络设备发送的RRC Reestablishment，终端设备进入空闲状态。终端设备未接收到RRC Reestablishment的原因至少包括两种：一种是网络设备接收到终端设备发送的RRC Reestablishment Request，但是网络设备未向终端设备反馈RRC Reestablishment。另一种是网络设备由于一些原因未能接收到终端设备发送的RRC Reestablishment Request。
在T301超时或失效的情况下，终端设备记录下述异常返回空闲状态的相关信息中的至少一项：
重建小区标识、所述终端设备返回空闲状态的原因、所述终端设备向所述网络设备发送重建请求消息所使用的前导码(Preamble)、所述终端设备向所述网络设备发送重建请求消息所使用的同步信号块(Synchronization Signal Block，SSB)、所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率、以及所述SSB上前导码的尝试次数。其中，所述终端设备返回空闲状态的原因包括：T301超时，或所述终端设备未接收到RRC Reestablishment。
针对第四种情况，终端设备在重建到某一小区后，若重建成功，该小区需要在终端设备原来的服务小区获取终端设备的上下文信息；其中，上下文信息包括完整性保护信息。并且，还需要计算出完整性保护密钥；如果计算出的完整性密钥与终端设备的完整性密钥不匹配，则RRC重建消息完整性保护失败，终端设备返回空闲状态。
由于RRC重建消息完整性保护失败涉及终端设备已存储的完整性保护密钥以及重建小区的多种信息，因此RRC重建消息完整性保护失败的情况下，终端设备记录下述 异常返回空闲状态的相关信息中的至少一项：
所述终端设备返回空闲状态的原因为重建消息完整性保护失败、完整性保护失败的重建小区标识(Cell ID)、重建小区的物理小区标识(Physical Cell ID，PCI)和/或频点(Absolute Radio Frequency Channel Number，ARFCN)、所述终端设备已存储的完整性保护密钥、下一跳链数(Next Hop Chaining Count，NCC)。其中，NCC用于更新终端设备使用的密钥。
下面针对终端设备由非激活状态直接返回空闲状态的情况下，终端设备获取返回空闲状态的相关信息进行说明。
在NR系统中，终端设备处于非激活状态时，通常不会有太强的理由回到空闲状态。除非终端设备重选到其他接入系统，终端设备返回空闲状态；或者终端设备在恢复连接状态之后，由网络设备主动将终端设备释放为空闲状态。
终端设备由于异常事件由非激活状态返回空闲状态(即终端设备异常返回空闲状态)的情况可以包括：
第一种情况，终端设备发起RRC恢复请求消息(RRC Resume Request)时，启动T319，但是T319超时或失效。第二种情况，终端设备接收到核心网的寻呼消息。第三种情况，终端设备发送RRC Resume Request之后，网络设备发送的RRC Resume完整性保护验证失败。
针对第一种情况，T319超时表征终端设备在发送RRC Resume Request之后，未收到RRC Resume；终端设备可以记录终端设备随机接入的个数、最大发射功率、是否发生碰撞等信息中的一个或多个。
针对第二种情况，终端设备处于非激活状态时，如果网络设备向终端设备发送数据，则应首先通过无线接入网(Radio Access Network，RAN)寻呼来寻找终端设备；只有在RAN寻呼失败未能寻找到终端设备的情况下，网络设备回退到核心网寻呼的方式，以在更广的范围内寻找终端设备。因此，终端设备在非激活状态下接收到核心网寻呼时，终端设备可以记录下述异常返回空闲状态的相关信息中的至少一项：
所述终端设备的服务小区信息、非激活状态下的无线区域信息(RAN Notification Area，RNA)、服务小区的测量信息、以及相邻小区的测量信息。其中，所述终端设备的服务小区信息可以为终端设备当前的服务小区信息，如服务小区ID；服务小区ID包括物理小区ID和/或全局小区ID。非激活状态下的RNA信息包括：RNA ID和/或包含的小区ID。
其中，测量信息包括针对小区的测量参数，和/或针对小区最强波束的测量参数；所述测量参数包括下述中的至少一项：RSRP、RSRQ和SINR。因此，服务小区的测量信息至少包括：服务小区的RSRP、RSRQ和SINR，以及服务小区最强波束的RSRP、RSRQ和SINR中的至少一项。相邻小区的测量信息至少包括：相邻小区的RSRP、RSRQ和SINR，以及相邻小区最强波束的RSRP、RSRQ和SINR中的至少一项。
针对第三种情况，终端设备在某小区恢复时，该小区需要基于终端设备的上下文信息计算出完整性保护密钥；如果计算出的完整性密钥与终端设备的完整性密钥不匹配，则RRC连接恢复消息完整性保护失败，终端设备返回空闲状态。
由于RRC连接恢复消息完整性保护失败涉及终端设备已存储的完整性保护密钥以及恢复小区的多种信息，因此RRC连接恢复消息完整性保护失败的情况下，终端设备记录下述异常返回空闲状态的相关信息中的至少一项：
所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败、完整性保护失败的恢复小区标识(Cell ID)、恢复小区的PCI和/或ARFCN、所述终端设备已存储的完整性保护密钥、NCC。其中，NCC用于更新终端设备使用的密钥。
在上述步骤S202中，终端设备发送所述相关信息至网络设备时，可以在终端设备向网络设备上报终端信息时，携带异常返回空闲状态的相关信息。
在一些实施例中，终端设备在向网络设备发送异常返回空闲状态的相关信息之前，接收所述网络设备发送的重配置消息，所述重配置消息指示终端是否可以发送相关的异常信息或者异常指示信息；所述终端设备可以基于所述重配置消息，向所述网络设备发送终端辅助信息；所述终端辅助信息中携带异常指示信息或者异常信息，所述异常指示信息指示所述终端设备存储有所述异常返回空闲状态的相关信息。
在另一些实施例中，终端设备也可以按照现有技术中RLF、CEF、和MDT的上报方式，向网络设备上报异常返回空闲状态的相关信息；即按照图1所示的处理流程，在连接建立请求消息或者连接建立完成消息中携带指示信息，指示所述终端设备存储有所述异常返回空闲状态的相关信息；并在后续的终端信息上报中上报所述终端设备存储有所述异常返回空闲状态的相关信息。
本发明实施例提供的信息反馈方法，针对终端设备在执行连接重建、或者终端设备在非激活状态时由于异常原因返回空闲态的事件的情况，明确了终端设备需要记录的信息以及如何将记录的信息上报至网络设备，使得终端设备能够将终端设备由于异常原因返回空闲状态的相关信息上报至网络设备，从而使得网络设备能够进一步优化系统参数，避免此类事件再次发生。
为实现上述信息反馈方法，本发明实施例提供一种终端设备，所述终端设备400的组成结构，如图11所示，包括：
处理单元401，配置为在终端设备异常返回空闲状态的情况下，获取异常返回空闲状态的相关信息；
第一发送单元402，配置为所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。
在一些实施例中，所述异常返回空闲状态包括：所述终端设备由于执行重建失败返回空闲状态。
在异常返回空闲状态为所述终端设备由于执行重建失败返回空闲状态情况下，所述相关信息包括下述中的至少一项：重建定时器失效的原因为重建定时器超时、所述重建定时器超时时的位置信息、所述重建定时器超时时的时间戳信息、以及服务小区和/或相邻小区的测量信息。或者，所述相关信息包括下述中的至少一项：重建小区标识、所述终端设备返回空闲状态的原因、所述终端设备向所述网络设备发送重建请求消息所使用的前导码、所述终端设备向所述网络设备发送重建请求消息所使用的SSB、所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率、所述SSB上前导码的尝试次数；其中，所述终端设备返回空闲状态的原因包括：重建消息接收定时器超时，或所述终端设备未接收到重建消息。或者，所述相关信息包括下述中的至少一项：所述终端设备返回空闲状态的原因为重建消息完整性保护失败、完整性保护失败的重建小区标识、PCI和/或ARFCN、所述终端设备已存储的完整性保护密钥、以及NCC。
在另一些实施例中，所述异常返回空闲状态包括：所述终端设备由非激活状态直接返回空闲状态。
在所述异常返回空闲状态为所述终端设备由非激活状态直接返回空闲状态时，所述相关信息包括下述中的至少一项：所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败、完整性保护失败的重建小区标识、PCI和/或ARFCN、所述终端设备已存储的完整性保护密钥、以及NCC。或者，所述终端设备在非激活状态下接收到核心网寻呼时，所述相关信息包括下述中的至少一项：所述终端设备的服务小区信息、非激活状态下的无线区域信息、服务小区和/或相邻小区的测量信息。
本发明实施例中，所述终端设备当前的服务小区信息包括：所述终端设备当前的服务小区标识。
本发明实施例中，所述无线区域信息包括：无线区域标识，和/或无线区域包含的小区标识。
本发明实施例中，所述测量信息包括：针对小区的测量参数，和/或针对小区最强波束的测量参数。其中，所述测量参数包括下述中的至少一项：RSRP、RSRQ和SINR。
本发明实施例中，所述第一发送单元402，配置为向所述网络设备上报终端信息，所述终端信息中携带所述相关信息。
本发明实施例中，所述终端设备还包括第一接收单元403，配置为接收所述网络设备发送的重配置消息；
所述第一发送单元402，配置为基于所述重配置消息，向所述网络设备发送终端辅助信息；所述终端辅助信息中携带指示信息，所述指示信息指示所述终端设备存储有所述相关信息。
为实现上述信息反馈方法，本发明实施例还提供一种网络设备，所述网络设备500的组成结构，如图12所示，包括：
第二接收单元501，配置为接收终端设备发送的异常返回空闲状态的相关信息；
所述相关信息在所述终端设备异常返回空闲状态的情况下，由所述终端设备获取，并在与所述网络设备再次建立连接时发送。
在一些实施例中，所述异常返回空闲状态包括：所述终端设备由于执行重建失败返回空闲状态。
在异常返回空闲状态为所述终端设备由于执行重建失败返回空闲状态情况下，所述相关信息包括下述中的至少一项：重建定时器失效的原因为重建定时器超时、所述重建定时器超时时的位置信息、所述重建定时器超时时的时间戳信息、以及服务小区和/或相邻小区的测量信息。或者，所述相关信息包括下述中的至少一项：重建小区标识、所述终端设备返回空闲状态的原因、所述终端设备向所述网络设备发送重建请求消息所使用的前导码、所述终端设备向所述网络设备发送重建请求消息所使用的SSB、所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率、所述SSB上前导码的尝试次数；其中，所述终端设备返回空闲状态的原因包括：重建消息接收定时器超时，或所述终端设备未接收到重建消息。或者，所述相关信息包括下述中的至少一项：所述终端设备返回空闲状态的原因为重建消息完整性保护失败、完整性保护失败的重建小区标识、PCI和/或ARFCN、所述终端设备已存储的完整性保护密钥、以及NCC。或者，所述相关信息还包括下述中的至少一项：所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败、完整性保护失败的恢复小区标识、恢复小区的PCI和/或ARFCN、所述终端设备已存储的完整性保护密钥、和NCC。
在另一些实施例中，所述异常返回空闲状态包括：所述终端设备由非激活状态直接返回空闲状态。
在所述异常返回空闲状态为所述终端设备由非激活状态直接返回空闲状态时，所述相关信息包括下述中的至少一项：所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败、完整性保护失败的重建小区标识、PCI和/或ARFCN、所述终端设备已存储的完整性保护密钥、以及NCC。或者，所述终端设备在非激活状态下接收到核心网寻呼时，所述相关信息包括下述中的至少一项：所述终端设备的服务小区信息、非激活状态下的无线区域信息、服务小区和/或相邻小区的测量信息。或者，所述相关信息还包括下述中的至少一项：所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败、完整性保护失败的恢复小区标识、恢复小区的PCI和/或ARFCN、所述终端设备 已存储的完整性保护密钥、和NCC。
本发明实施例中，所述终端设备当前的服务小区信息包括：所述终端设备当前的服务小区标识。
本发明实施例中，所述无线区域信息包括：无线区域标识，和/或无线区域包含的小区标识。
本发明实施例中，所述测量信息包括：针对小区的测量参数，和/或针对小区最强波束的测量参数。其中，所述测量参数包括下述中的至少一项：RSRP、RSRQ和SINR。
本发明实施例中，所述第二接收单元501，配置为接收所述终端设备上报的终端信息，所述终端信息中携带所述相关信息。
本发明实施例中，所述网络设备500还包括：第二发送单元502，配置为向所述终端设备发送重配置消息；
所述第二接收单元，还配置为接收终端辅助信息；
所述终端辅助信息中携带指示信息，由所述终端设备基于所述重配置消息发送，所述指示信息指示所述终端设备存储有所述相关信息。
本发明实施例还提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的信息反馈方法的步骤。
本发明实施例还提供一种网络设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述网络设备执行的信息反馈方法的步骤。
图13是本发明实施例的电子设备(终端设备和网络设备)的硬件组成结构示意图，电子设备700包括：至少一个处理器701、存储器702和至少一个网络接口704。电子设备700中的各个组件通过总线系统705耦合在一起。可理解，总线系统705用于实现这些组件之间的连接通信。总线系统705除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图13中将各种总线都标为总线系统705。
可以理解，存储器702可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是ROM、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本发明实施例描述的存储器702旨在包括但不限于这些和任意其它适合类型 的存储器。
本发明实施例中的存储器702用于存储各种类型的数据以支持电子设备700的操作。这些数据的示例包括：用于在电子设备700上操作的任何计算机程序，如应用程序7022。实现本发明实施例方法的程序可以包含在应用程序7022中。
上述本发明实施例揭示的方法可以应用于处理器701中，或者由处理器701实现。处理器701可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器701可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器701可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器702，处理器701读取存储器702中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，电子设备700可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、MPU、或其他电子元件实现，用于执行前述方法。
本申请实施例还提供了一种存储介质，用于存储计算机程序。
可选的，该存储介质可应用于本申请实施例中的终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中的相应流程，为了简洁，在此不再赘述。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (60)

  1. 一种信息反馈方法，所述方法包括：
    在终端设备异常返回空闲状态的情况下，所述终端设备获取异常返回空闲状态的相关信息；
    所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。
  2. 根据权利要求1所述的方法，其中，所述异常返回空闲状态包括：
    所述终端设备由于执行重建失败返回空闲状态。
  3. 根据权利要求1所述的方法，其中，所述异常返回空闲状态包括：
    所述终端设备由非激活状态直接返回空闲状态。
  4. 根据权利要求1或2所述的方法，其中，所述相关信息包括下述中的至少一项：
    重建定时器失效的原因为重建定时器超时；
    所述重建定时器超时时的位置信息；
    所述重建定时器超时时的时间戳信息；
    服务小区和/或相邻小区的测量信息。
  5. 根据权利要求1或2所述的方法，其中，所述相关信息包括下述中的至少一项：
    重建小区标识；
    所述终端设备返回空闲状态的原因；
    所述终端设备向所述网络设备发送重建请求消息所使用的前导码；
    所述终端设备向所述网络设备发送重建请求消息所使用的同步信号块SSB；
    所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率；
    所述SSB上前导码的尝试次数；
    所述终端设备返回空闲状态的原因包括：重建消息接收定时器超时，或所述终端设备未接收到重建消息。
  6. 根据权利要求1或2所述的方法，其中，所述相关信息还包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为重建消息完整性保护失败；
    完整性保护失败的重建小区标识；
    重建小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    下一跳链数NCC。
  7. 根据权利要求1或3所述的方法，其中，所述相关信息还包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败；
    完整性保护失败的恢复小区标识；
    恢复小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    NCC。
  8. 根据权利要求1或3所述的方法，其中，所述终端设备在非激活状态下接收到核心网寻呼时，所述相关信息包括下述中的至少一项：
    所述终端设备的服务小区信息；
    非激活状态下的无线区域信息；
    服务小区和/或相邻小区的测量信息。
  9. 根据权利要求8所述的方法，其中，所述终端设备当前的服务小区信息包括：
    所述终端设备当前的服务小区标识。
  10. 根据权利要求8或9所述的方法，其中，所述无线区域信息包括：
    无线区域标识，和/或无线区域包含的小区标识。
  11. 根据权利要求4、8至10任一项所述的方法，其中，所述测量信息包括：
    针对小区的测量参数，和/或针对小区最强波束的测量参数。
  12. 根据权利要求11所述的方法，其中，所述测量参数包括下述中的至少一项：
    参考信号接收功率RSRP、参考信号接收质量RSRQ和信号与干扰加噪声比SINR。
  13. 根据权利要求1至12任一项所述的方法，其中，所述终端设备发送所述相关信息至网络设备，包括：
    所述终端设备向所述网络设备上报终端信息，所述终端信息中携带所述相关信息。
  14. 根据权利要求13所述的方法，其中，所述方法还包括：
    所述终端设备接收所述网络设备发送的重配置消息；
    所述终端设备基于所述重配置消息，向所述网络设备发送终端辅助信息；所述终端辅助信息中携带指示信息，所述指示信息指示所述终端设备存储有所述相关信息。
  15. 一种信息反馈方法，所述方法包括：
    网络设备接收终端设备发送的异常返回空闲状态的相关信息；
    所述相关信息在所述终端设备异常返回空闲状态的情况下，由所述终端设备获取，并在与所述网络设备再次建立连接时发送。
  16. 根据权利要求15所述的方法，其中，所述异常返回空闲状态包括：
    所述终端设备由于执行重建失败返回空闲状态。
  17. 根据权利要求15所述的方法，其中，所述异常返回空闲状态包括：
    所述终端设备由非激活状态直接返回空闲状态。
  18. 根据权利要求15或16所述的方法，其中，所述相关信息包括下述中的至少一项：
    重建定时器失效的原因为重建定时器超时；
    所述重建定时器超时时的位置信息；
    所述重建定时器超时时的时间戳信息；
    服务小区和/或相邻小区的测量信息。
  19. 根据权利要求15或16所述的方法，其中，所述相关信息包括下述中的至少一项：
    重建小区标识；
    所述终端设备返回空闲状态的原因；
    所述终端设备向所述网络设备发送重建请求消息所使用的前导码；
    所述终端设备向所述网络设备发送重建请求消息所使用的同步信号块SSB；
    所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率；
    所述SSB上前导码的尝试次数；
    所述终端设备返回空闲状态的原因包括：重建消息接收定时器超时，或所述终端设备未接收到重建消息。
  20. 根据权利要求15或16所述的方法，其中，所述相关信息还包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为重建消息完整性保护失败；
    完整性保护失败的重建小区标识；
    重建小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    下一跳链数NCC。
  21. 根据权利要求15或17所述的方法，其中，所述相关信息还包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败；
    完整性保护失败的恢复小区标识；
    恢复小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    NCC。
  22. 根据权利要求15或17所述的方法，其中，所述终端设备在非激活状态下接收到核心网寻呼时，所述相关信息包括下述中的至少一项：
    所述终端设备当前的服务小区信息；
    非激活状态下的无线区域信息；
    服务小区和/或相邻小区的测量信息。
  23. 根据权利要求22所述的方法，其中，所述终端设备当前的服务小区信息包括：
    所述终端设备当前的服务小区标识。
  24. 根据权利要求22或23所述的方法，其中，所述无线区域信息包括：
    无线区域标识，和/或无线区域包含的小区标识。
  25. 根据权利要求18、22至24任一项所述的方法，其中，所述测量信息包括：
    针对小区的测量参数，和/或针对小区最强波束的测量参数。
  26. 根据权利要求25所述的方法，其中，所述测量参数包括下述中的至少一项：
    参考信号接收功率RSRP、参考信号接收质量RSRQ和信号与干扰加噪声比SINR。
  27. 根据权利要求15至26任一项所述的方法，其中，所述网络设备接收终端设备发送的返回空闲状态的相关信息，包括：
    所述网络设备接收所述终端设备上报的终端信息，所述终端信息中携带所述相关信息。
  28. 根据权利要求27所述的方法，其中，所述方法还包括：
    所述网络设备向所述终端设备发送重配置消息；
    所述网络设备接收终端辅助信息；
    所述终端辅助信息中携带指示信息，由所述终端设备基于所述重配置消息发送，所述指示信息指示所述终端设备存储有所述相关信息。
  29. 一种终端设备，所述终端设备包括：
    处理单元，配置为在终端设备异常返回空闲状态的情况下，获取异常返回空闲状态的相关信息；
    第一发送单元，配置为所述终端设备在与网络设备再次建立连接时，发送所述相关信息至网络设备。
  30. 根据权利要求29所述的终端设备，其中，所述异常返回空闲状态包括：
    所述终端设备由于执行重建失败返回空闲状态。
  31. 根据权利要求29所述的终端设备，其中，所述异常返回空闲状态包括：
    所述终端设备由非激活状态直接返回空闲状态。
  32. 根据权利要求29或30所述的终端设备，其中，所述相关信息包括下述中的至少一项：
    重建定时器失效的原因为重建定时器超时；
    所述重建定时器超时时的位置信息；
    所述重建定时器超时时的时间戳信息；
    服务小区和/或相邻小区的测量信息。
  33. 根据权利要求29或30所述的终端设备，其中，所述相关信息包括下述中的至少一项：
    重建小区标识；
    所述终端设备返回空闲状态的原因；
    所述终端设备向所述网络设备发送重建请求消息所使用的前导码；
    所述终端设备向所述网络设备发送重建请求消息所使用的同步信号块SSB；
    所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率；
    所述SSB上前导码的尝试次数；
    所述终端设备返回空闲状态的原因包括：重建消息接收定时器超时，或所述终端设备未接收到重建消息。
  34. 根据权利要求29或30所述的终端设备，其中，所述相关信息包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为重建消息完整性保护失败；
    完整性保护失败的重建小区标识；
    重建小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    下一跳链数NCC。
  35. 根据权利要求29或31所述的终端设备，其中，所述相关信息包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败；
    完整性保护失败的恢复小区标识；
    恢复小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    NCC。
  36. 根据权利要求29或31所述的终端设备，其中，所述终端设备在非激活状态下接收到核心网寻呼时，所述相关信息包括下述中的至少一项：
    所述终端设备的服务小区信息；
    非激活状态下的无线区域信息；
    服务小区和/或相邻小区的测量信息。
  37. 根据权利要求36所述的终端设备，其中，所述终端设备当前的服务小区信息包括：
    所述终端设备当前的服务小区标识。
  38. 根据权利要求36或37所述的终端设备，其中，所述无线区域信息包括：
    无线区域标识，和/或无线区域包含的小区标识。
  39. 根据权利要求32、36至38任一项所述的终端设备，其中，所述测量信息包括：
    针对小区的测量参数，和/或针对小区最强波束的测量参数。
  40. 根据权利要求39所述的终端设备，其中，所述测量参数包括下述中的至少一项：
    参考信号接收功率RSRP、参考信号接收质量RSRQ和信号与干扰加噪声比SINR。
  41. 根据权利要求29至40任一项所述的终端设备，其中，所述第一发送单元，配置为向所述网络设备上报终端信息，所述终端信息中携带所述相关信息。
  42. 根据权利要求41所述的终端设备，其中，所述终端设备还包括第一接收单元，配置为接收所述网络设备发送的重配置消息；
    所述第一发送单元，配置为基于所述重配置消息，向所述网络设备发送终端辅助信息；所述终端辅助信息中携带指示信息，所述指示信息指示所述终端设备存储有所述相关信息。
  43. 一种网络设备，所述网络设备包括：
    第二接收单元，配置为接收终端设备发送的异常返回空闲状态的相关信息；
    所述相关信息在所述终端设备异常返回空闲状态的情况下，由所述终端设备获取，并在与所述网络设备再次建立连接时发送。
  44. 根据权利要求43所述的网络设备，其中，所述异常返回空闲状态包括：
    所述终端设备由于执行重建失败返回空闲状态。
  45. 根据权利要求43所述的网络设备，其中，所述异常返回空闲状态包括：
    所述终端设备由非激活状态直接返回空闲状态。
  46. 根据权利要求43或44所述的网络设备，其中，所述相关信息包括下述中的至少一项：
    重建定时器失效的原因为重建定时器超时；
    所述重建定时器超时时的位置信息；
    所述重建定时器超时时的时间戳信息；
    服务小区和/或相邻小区的测量信息。
  47. 根据权利要求43或44所述的网络设备，其中，所述相关信息包括下述中的至少一项：
    重建小区标识；
    所述终端设备返回空闲状态的原因；
    所述终端设备向所述网络设备发送重建请求消息所使用的前导码；
    所述终端设备向所述网络设备发送重建请求消息所使用的同步信号块SSB；
    所述终端设备向所述网络设备发送重建请求消息所使用的最大发射功率；
    所述SSB上前导码的尝试次数；
    所述终端设备返回空闲状态的原因包括：重建消息接收定时器超时，或所述终端设备未接收到重建消息。
  48. 根据权利要求43或44所述的网络设备，其中，所述相关信息包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为重建消息完整性保护失败；
    完整性保护失败的重建小区标识；
    重建小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    下一跳链数NCC。
  49. 根据权利要求43或45所述的网络设备，其中，所述相关信息包括下述中的至少一项：
    所述终端设备返回空闲状态的原因为连接恢复消息完整性保护失败；
    完整性保护失败的恢复小区标识；
    恢复小区的物理小区标识PCI和/或频点ARFCN；
    所述终端设备已存储的完整性保护密钥；
    NCC。
  50. 根据权利要求43或45所述的网络设备，其中，所述终端设备在非激活状态下接收到核心网寻呼时，所述相关信息包括下述中的至少一项：
    所述终端设备当前的服务小区信息；
    非激活状态下的无线区域信息；
    服务小区和/或相邻小区的测量信息。
  51. 根据权利要求50所述的网络设备，其中，所述终端设备当前的服务小区信息包括：
    所述终端设备当前的服务小区标识。
  52. 根据权利要求50或51所述的网络设备，其中，所述无线区域信息包括：
    无线区域标识，和/或无线区域包含的小区标识。
  53. 根据权利要求46、50至52任一项所述的网络设备，其中，所述测量信息包括：
    针对小区的测量参数，和/或针对小区最强波束的测量参数。
  54. 根据权利要求53所述的网络设备，其中，所述测量参数包括下述中的至少一项：
    参考信号接收功率RSRP、参考信号接收质量RSRQ和信号与干扰加噪声比SINR。
  55. 根据权利要求43至54任一项所述的网络设备，其中，所述第二接收单元，配置为接收所述终端设备上报的终端信息，所述终端信息中携带所述相关信息。
  56. 根据权利要求55所述的网络设备，其中，所述网络设备还包括：
    第二发送单元，配置为向所述终端设备发送重配置消息；
    所述第二接收单元，还配置为接收终端辅助信息；
    所述终端辅助信息中携带指示信息，由所述终端设备基于所述重配置消息发送，所述指示信息指示所述终端设备存储有所述相关信息。
  57. 一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，
    所述处理器用于运行所述计算机程序时，执行权利要求1至14任一项所述的信息反馈方法的步骤。
  58. 一种网络设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，
    所述处理器用于运行所述计算机程序时，执行权利要求15至28任一项所述的信息反馈方法的步骤。
  59. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现权利要求1至14任一项所述的信息反馈方法。
  60. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现权利要求15至28任一项所述的信息反馈方法。
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