CN113826425B

CN113826425B - Link detection method, device and related equipment

Info

Publication number: CN113826425B
Application number: CN201980096409.9A
Authority: CN
Inventors: 李秉肇; 程型清
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2023-07-18
Anticipated expiration: 2039-05-29
Also published as: WO2020237530A1; CN113826425A

Abstract

The embodiment of the application discloses a link detection method, a device and related equipment. The link detection method provided by the embodiment of the application can be executed by the terminal equipment, and the terminal equipment can judge whether the paging channel is abnormally received or not by receiving the paging beacon information and detecting the receiving state of the paging channel according to the paging beacon information. The method provided by the embodiment of the application can be applied to a communication system, such as V2X, LTE-V, V2V, internet of vehicles, MTC, ioT, LTE-M, M2M and the like.

Description

Link detection method, device and related equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for link detection, and related devices.

Background

At present, different methods are generally adopted for link detection of the terminal equipment according to different states of the terminal equipment, for example, when the terminal equipment is in a connected state, the terminal equipment can continuously measure signal quality and trigger radio link failure after a certain time of signal degradation; for another example, the terminal device may continue to make cell signal measurements while the terminal device is in an idle state, and determine that the cell is not available if the cell signal is poor to some extent. The link detection methods are all based on the detection of the signal quality, and the abnormal processing of the terminal equipment is not triggered as long as the signal quality is normal. However, in a practical system, besides the signal quality problem, the problem of the terminal device itself may also cause abnormal data reception. For example, when the terminal device is in an idle state, the paging listening of the terminal device is abnormal (if the paging message is not received), but the signal quality is not problematic, and at this time, the abnormal processing of the terminal device is not triggered, so that the problem of the paging listening abnormality of the terminal device cannot be solved. How to detect the data reception abnormality of the terminal device becomes a problem to be solved.

Disclosure of Invention

The method, the device and the related equipment for detecting the link can enable the terminal equipment to timely find out the link abnormality, are favorable for enabling the terminal equipment to timely process the link abnormality, and ensure normal receiving of data.

In a first aspect, an embodiment of the present application provides a link detection method, which may detect a data reception state of a terminal device, where the method may be performed by the terminal device, and the terminal device detects a reception state of a paging channel according to paging beacon information by receiving the paging beacon information. In this scheme, the terminal device determines whether the receiving state of the paging channel is in an abnormal state by detecting whether the received data includes the periodically transmitted paging beacon information.

In one possible design, the paging beacon information may be periodically sent to the terminal device, where the terminal device determines that the paging channel reception is in an abnormal state if the second paging beacon information is not received within a period of time after the terminal device receives the first paging beacon information. Therefore, in the scheme, the terminal equipment periodically detects whether the paging beacon information is received or not, and if the paging beacon information is not received in a certain period, the terminal equipment can timely find that the receiving state of the paging channel is in an abnormal state.

In one possible design, the paging beacon detection timer is started or restarted after the terminal device receives the first paging beacon information; if the paging beacon detection timer is overtime, the terminal equipment determines that the paging channel reception is in an abnormal state. Therefore, the scheme adopts the paging beacon detection timer, and can detect whether the paging beacon information is received or not in a preset time period, so that the terminal equipment can timely find whether the receiving state of the paging channel is in an abnormal state or not.

In one possible design, a terminal device receives paging beacon configuration information including at least one of: the transmission period of the paging beacon information, the transmission duration of the paging beacon and the initial transmission moment of the paging beacon. Therefore, the terminal equipment can detect whether the paging beacon information is received according to the sending period of the paging beacon information by acquiring the paging beacon configuration information, so that whether the receiving state of the paging channel is in an abnormal state or not can be found timely.

In one possible design, the timeout period of the paging beacon detection timer may be set according to the transmission period of the paging beacon information. By adopting the design, the time-out time of the paging beacon detection timer can be set to be longer than or equal to the sending period of the paging beacon, which is beneficial to the terminal equipment to timely find whether the receiving state of the paging channel is in an abnormal state or not.

In one possible design, the paging beacon information is predefined information or the paging beacon information is information determined from a terminal device identification of the terminal device. By adopting the design, the terminal equipment can read the paging beacon information more accurately.

In one possible design, the terminal device determines a paging beacon detection value according to a terminal device identifier of the terminal device; if the paging beacon detection value is different from the value indicated by the paging beacon information, the terminal equipment determines that the paging channel reception is in an abnormal state. The design is beneficial to the terminal equipment to judge whether the receiving state of the paging channel is in an abnormal state or not more accurately.

In one possible design, the terminal device receives a paging message at a paging occasion, the paging message including paging beacon information.

In a second aspect, an embodiment of the present application provides a link detection method, which may be executed by a network device, where the network device sets a transmission period of a paging beacon and a transmission duration of the paging beacon, determines an initial transmission time of the paging beacon according to the transmission period of the paging beacon and the transmission duration of the paging beacon, and transmits paging beacon information to a terminal device at the initial transmission time of the paging beacon. Therefore, the scheme is beneficial to the terminal equipment to receive the paging beacon information at the appointed moment so as to judge whether the paging channel is abnormal or not in time.

In one possible design, the network device determines a transmission duration of a corresponding paging beacon within a transmission period of each paging beacon; and the network equipment transmits the paging beacon information at the moment corresponding to the paging occasion contained in the paging beacon transmission duration. By adopting the design, the terminal equipment can judge whether the paging beacon information is received at a specific moment, so that whether the receiving state of the paging channel is in an abnormal state or not can be found timely.

In one possible design, the network device sends the paging beacon information to the terminal device carried in a paging message. By adopting the design, the terminal equipment can judge whether the receiving state of the paging channel is in an abnormal state or not by detecting whether the paging message carries the paging beacon information or not.

In one possible design, the network device transmits paging beacon configuration information at a paging beacon transmission time, the paging beacon configuration information including at least one or a combination of the following: the transmission period of the paging beacon, the transmission duration of the paging beacon, and the initial transmission time of the paging beacon.

In one possible design, the paging beacon information is generated according to a preset fixed value or determined according to the time at which the paging beacon is located.

In one possible design, the corresponding paging beacon information is determined according to the time at which the paging beacon is located, and the corresponding paging beacon information is calculated according to the terminal device identifier of the terminal device.

In one possible design, the transmission duration of the paging beacon is determined according to the maximum value of the paging cycle of each terminal device in the target cell. By adopting the design, each terminal device in the target cell covered by the network device can receive the paging beacon information.

In a third aspect, an embodiment of the present application provides a link detection method, where the method may be executed by a network device, where the network device may perform link detection on an access terminal device, and if a link abnormality of the access terminal device is detected, generate radio resource control release information for indicating the link abnormality, and send the radio resource control release information to the terminal device with the link abnormality. Therefore, by adopting the scheme, if the network equipment detects the link abnormality of the accessed terminal equipment, the link abnormality information can be reported to the terminal equipment, so that the terminal equipment can find the link abnormality in time.

In one possible design, the network device sends first information to the accessed terminal device in a preset period, where the first information is used to indicate whether the radio bearer of the accessed terminal device is abnormal; if the first information of the accessed terminal equipment is not detected in the preset period, the network equipment generates wireless resource control release information, wherein the wireless resource control release information indicates that the first information of the terminal equipment is not detected in the preset period. By adopting the design, the network equipment can send the wireless resource control release information to the terminal equipment with abnormal link, and the wireless resource control release information can contain the reason of the abnormal link, thereby being beneficial to the terminal equipment to determine the reason of the abnormal link.

In one possible design, the network device sends second information to the accessed terminal device, the second information being used to request a status report of the accessed terminal device; if the status report of the accessed terminal equipment is not received within the preset time length, the network equipment generates wireless resource control release information which indicates that the status report of the accessed terminal equipment is not received within the preset time length. By adopting the design, the network equipment can send the wireless resource control release information to the terminal equipment with abnormal link, and the wireless resource control release information can contain the reason of the abnormal link, thereby being beneficial to the terminal equipment to determine the reason of the abnormal link.

In one possible design, the network device performs an integrity protection check on the terminal device, where the integrity protection check includes counting the number of check failures; if the number of check failures exceeds the threshold, the network device generates radio resource control release information, and the radio resource control release information indicates that the integrity check protection of the accessed terminal device fails. By adopting the design, the network equipment can send the wireless resource control release information to the terminal equipment with abnormal link, and the wireless resource control release information can contain the reason of the abnormal link, thereby being beneficial to the terminal equipment to determine the reason of the abnormal link.

In one possible design, the radio resource control release information also indicates an abnormal radio bearer identity. With this design, the terminal device can determine abnormal radio bearer sequence numbers, to facilitate handling of the abnormal radio bearer.

In a fourth aspect, an embodiment of the present application provides a link detection method, where the method may be performed by a terminal device, where the terminal device receives radio resource control release information sent by a network device and used to indicate link abnormality, and determines that the link abnormality is abnormal according to the radio resource control release information. By adopting the scheme, the terminal equipment can timely find out the abnormal condition of the link.

In one possible design, the radio resource control release information indicates at least one of: detecting the abnormal radio bearer of the terminal equipment in a preset period, and not receiving a state report of the terminal equipment in a preset time period, wherein the integrity check protection of the terminal equipment fails, and the abnormal radio bearer is identified. With the adoption of the design, the terminal equipment can determine the reason of the link abnormality.

In one possible design, after receiving the radio resource control release information, the access layer of the terminal device may send the radio resource control release information to a communication higher layer; and then the modem chip is processed according to the processing instruction information of the modem chip sent by the communication high layer. By adopting the design, the terminal equipment is beneficial to timely processing the link abnormality.

In a fifth aspect, embodiments of the present application provide a link detection apparatus, which has a function of implementing the link detection method provided in the first aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a sixth aspect, embodiments of the present application provide a link detection apparatus, which has a function of implementing the link detection method provided in the second aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a seventh aspect, embodiments of the present application provide a link detection apparatus, which has a function of implementing the link detection method provided in the third aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In an eighth aspect, an embodiment of the present application provides a link detection apparatus, which has a function of implementing the link detection method provided in the fourth aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a ninth aspect, embodiments of the present application provide a terminal device, where the terminal device includes a processor and a memory; the memory is for storing a computer program, the processor executing the computer program stored in the memory to cause the terminal device to perform the method of the first aspect or any one of the possible implementations of the first aspect.

In a tenth aspect, embodiments of the present application provide a network device comprising a processor and a memory; the memory is for storing a computer program, the processor executing the computer program stored in the memory to cause the network device to perform the method of the second aspect or any one of the possible implementations of the second aspect.

In an eleventh aspect, embodiments of the present application provide a network device that includes a processor and a memory; the memory is for storing a computer program, the processor executing the computer program stored in the memory to cause the network device to perform the method of the third aspect or any one of the possible implementations of the third aspect.

In a twelfth aspect, embodiments of the present application provide a terminal device, including a processor and a memory; the memory is for storing a computer program, and the processor executes the computer program stored in the memory to cause the terminal device to perform the method of the fourth aspect or any one of the possible implementations of the fourth aspect.

In a thirteenth aspect, an embodiment of the present application provides a communication system, which includes the terminal device provided in the ninth aspect and the twelfth aspect and the network device provided in the tenth aspect and the eleventh aspect.

In a fourteenth aspect, embodiments of the present application provide a processor comprising at least one circuit for performing the method of the first aspect or any one of the possible implementations of the first aspect.

In a fifteenth aspect, embodiments of the present application provide a processor comprising at least one circuit for performing the method of the second aspect or any one of the possible implementations of the second aspect.

In a sixteenth aspect, embodiments of the present application provide a processor comprising at least one circuit for performing the method of the third aspect or any one of the possible implementations of the third aspect.

In a seventeenth aspect, embodiments of the present application provide a processor comprising at least one circuit for performing the method of the fourth aspect or any one of the possible implementations of the fourth aspect.

In an eighteenth aspect, embodiments of the present application provide a computer program product comprising a program or instructions which, when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect.

In a nineteenth aspect, embodiments of the present application provide a computer program product comprising a program or instructions which, when run on a computer, cause the computer to perform the method of the second aspect or any one of the possible implementations of the second aspect.

In a twentieth aspect, embodiments of the present application provide a computer program product comprising a program or instructions which, when run on a computer, cause the computer to perform the method of the third aspect or any one of the possible implementations of the third aspect.

In a twenty-first aspect, embodiments of the present application provide a computer program product comprising a program or instructions which, when run on a computer, cause the computer to perform the method of the fourth aspect or any one of the possible implementations of the fourth aspect.

In a twenty-second aspect, embodiments of the present application provide a chip system, where the chip system includes a processor, for example, applied in a link detection device, for implementing the functions or methods related to the first aspect. In a possible implementation manner, the chip system further includes a memory, where the memory is configured to store program instructions and data necessary to implement the functions of the method described in the first aspect. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a twenty-third aspect, embodiments of the present application provide a chip system, which includes a processor, for example, applied in a link detection device, for implementing the functions or methods related in the second aspect. In a possible implementation manner, the chip system further includes a memory, where the memory is used to store program instructions and data necessary to implement the functions of the method described in the second aspect. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a twenty-fourth aspect, embodiments of the present application provide a chip system, which includes a processor, for example, applied in a link detection device, for implementing the functions or methods related in the third aspect. In a possible implementation manner, the chip system further includes a memory, where the memory is used to store program instructions and data necessary to implement the functions of the method described in the third aspect. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a twenty-fifth aspect, embodiments of the present application provide a chip system, where the chip system includes a processor, for example, applied in a link detection device, for implementing the function or method referred to in the fourth aspect. In a possible implementation manner, the chip system further includes a memory, where the memory is used to store program instructions and data necessary to implement the functions of the method described in the fourth aspect. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

Drawings

Fig. 1 is a schematic diagram of a communication system suitable for use in the link detection method of an embodiment of the present application;

fig. 2 is a flow chart of a link detection method according to an embodiment of the present application;

fig. 3 is a schematic diagram of paging beacon information provided in an embodiment of the present application;

fig. 4 is a flow chart of another link detection method according to an embodiment of the present application;

fig. 5 is a flowchart of a method for performing link detection on an accessed terminal device by a network device according to an embodiment of the present application;

FIGS. 6a and 6b are schematic diagrams of keep-alive information provided by embodiments of the present application;

fig. 7 is a flowchart of another method for performing link detection on an accessed terminal device by a network device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a link detection device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another link detection device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another link detection device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of another link detection device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of another link detection device according to an embodiment of the present application;

Fig. 13 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 14 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

The present application will present various aspects, embodiments, or features about a system that may include multiple devices, components, modules, etc. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, combinations of these schemes may also be used.

In the embodiments of the present application, "at least one" is used to indicate that one or more items are included, or a combination of multiple items. For example, at least one of A, B, C represents any one of 7 cases of A, B, C, A and B, A and C, B and C, A and B and C.

Prior to the description of the embodiments of the present application, related background art will be first described.

The embodiment of the application can be applied to various types of communication systems, such as: long term evolution (long term evolution, LTE) systems, future fifth generation (5th Generation,5G) systems, such as new generation radio access technologies (new radio access technology, NR), and future communication systems, such as 6G systems, etc.; it can also be applied in future UE-centric networks; the method can also be applied to information exchange (Vehicle to everything, V2X) systems of vehicles to the outside, internet of vehicles (LTE Vehicle, LTE-V) systems based on cellular technology, inter-Vehicle communication (Vehicle to Vehicle, V2V) systems, internet of vehicles (internet of Vehicle, ioV), machine type communication (machine type communications, MTC) systems, internet of things (LTE machine to machine, LTE-M) systems based on cellular technology, inter-object communication (machine to machine, M2M) systems, internet of things (internet of things, ioT) and the like.

In LTE or NR, paging (paging) is used to notify a UE in an idle state or a connected (inactive) state to establish a service (i.e., called), or notify the UE that a system message is changed, and the UE needs to re-read a changed system broadcast message, or notify the UE to receive information of an earthquake tsunami warning system (earthquake and tsunami warning system, ETWS).

In LTE, in a period of discontinuous reception (discontinuous reception, DRX), a terminal device may monitor whether a physical downlink control channel (physical downlink control channel, PDCCH) carries a temporary paging identifier (paging radio network temporary identity, P-RNTI) only on a Paging Occasion (PO) in a corresponding Paging Frame (PF), and if so, the terminal device may receive data on a PDSCH according to parameters of a physical downlink shared channel (physical downlink shared channel, PDSCH) indicated on the PDCCH; wherein, in a DRX cycle, the terminal device may only receive the paging message at the moment when the PO appears, and the calculation of the paging includes the calculation of the PF and the calculation of the PO, so as to determine which PO the terminal device monitors. Specifically, the calculation formula of PF is as follows: SFN mod t= (tdiv N) (ue_id mod N), wherein SFN is the number of the system frame, and all SFN values satisfying the calculation formula of PF are PF values; t is a paging cycle; the ue_id is a user identifier, and a specific calculation formula may be: ue_id = IMSI mod 1024; n is the number of PFs in a paging cycle, and a specific calculation formula may be: n=min (T, nB), nB being paging message configuration parameters, may represent the total number of POs in one paging cycle.

The calculation formula of PO is as follows: i_s=floor (ue_id div N) mod Ns, where i_s is an index of a PO of a user, indicating on which PO the user listens for paging messages; ns is the number of POs in a PF, and a specific calculation formula may be: ns=max (1, nb/T). According to the parameters and the calculation formula, i_s of a certain user can be calculated, and then the subframe number of PO can be inquired according to the table 1; table 1 shows the mapping relationship between i_s and PO in TDD mode, as follows:

table 1: mapping relation table of i_s and PO

Ns	PO (when i_s=0)	PO (when i_s=1)	PO (when i_s=2)	PO (when i_s=3)
					1	0	N/A	N/A	N/A
2	0	5	N/A	N/A
					4	0	1	5	6

In NR, the calculation of paging also includes two-stage setting of PF and PO, and the basic principle is similar to LTE, and the calculation formula of PF is as follows: (sfn+pf_offset) mod t= (tdiv N) (ue_id mod N), wherein, unlike LTE, NR is increased by a parameter pf_offset, which can adjust the position of the PF, making the configuration of the PF more flexible. The calculation formula of PO is as follows: i_s=floor (ue_id div N) mod Ns, the same formula as PO in LTE. According to the information, the time at which the paging message is sent can be calculated, so that the corresponding time can be monitored to acquire the paging message.

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

In order to facilitate understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application is first described by taking the communication system shown in fig. 1 as an example. As shown in fig. 1, the communication system 100 includes a network device 101 and a terminal device 102, wherein the network device 101 may be configured with a plurality of antennas, and the terminal device 102 may be configured with a plurality of antennas; it should be appreciated that the network device 101 or the terminal device 102 may also include a plurality of components (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, etc.) related to the transmission and reception of signals.

The network device 101 is a device with a wireless transceiver function or a chip that can be disposed on the device, and includes, but is not limited to: an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), etc.; it may also be 5G, e.g. a gNB in an NR system, or a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or a network node, e.g. a baseband unit (BBU), or a Distributed Unit (DU), etc. constituting the gNB or transmission point.

The terminal device 102 may be a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile network (public land mobile network, PLMN) network, etc. It can be understood that, in the present application, a terminal device having a wireless transceiver function and a chip that can be disposed on the terminal device are collectively referred to as a terminal device.

It will be appreciated that the network device 101 shown in fig. 1 may be in communication with the terminal device 102, where the network device 101 may be in communication with the terminal device 102 and the terminal device 102 may be in communication with the network device 101, but this is merely illustrative of one possible scenario, in which a network device may be in communication with multiple terminal devices, and the present application is not limited in this regard. Fig. 1 is a simplified schematic diagram that is merely illustrated for ease of understanding, and other network devices or other terminal devices may be included in the communication system, which are not shown in fig. 1.

The network equipment and the terminal equipment need to carry out link detection in the communication process, and if any side of the network equipment and the terminal equipment detects that a link has a problem, the communication between the network equipment and the terminal equipment enters an abnormal processing flow. In the communication system shown in fig. 1, link detection of terminal devices can be divided into processing in two states, a connected state and an idle state. In the connected state, the terminal device can continuously measure the signal quality and trigger the radio link failure after the signal is degraded for a certain time. Triggering cell selection after the radio link of the UE fails, and then reestablishing connection according to the selected cell; in idle state, the UE may continue to perform cell signal measurements and may notify higher cells that are not available if the cell signal is poor to some extent. However, the above method can only detect a problem of signal quality, and besides a problem of signal quality, the terminal device itself may also have a problem of data reception, for example: the abnormal paging channel reception of the terminal device may be that abnormal behavior (such as memory boundary crossing, process suspension and the like) occurs in the operation process due to design defects of the terminal device, and thus, some functional modules of the terminal device fail, for example: abnormal reception of the paging channel may cause the terminal device to fail to receive the paging message. However, since the paging message is not sent regularly, the terminal device may not receive the paging message, or the network device may not send the paging message, or the terminal device may not receive the paging message sent by the network device, which may not distinguish the two scenarios in the prior art. In order to solve the above-mentioned problems, an embodiment of the present invention provides a link detection method, in which link detection is implemented by detecting periodically transmitted information and determining a receiving state of a link according to the periodically transmitted information. The method can enable the terminal equipment to timely find out the link abnormality, is favorable for the terminal equipment to perform corresponding processing according to the abnormality condition, and ensures the normal receiving of the data.

The following description will be made with reference to specific embodiments.

The embodiment of the present application provides a link detection method, by detecting whether received data includes paging beacon information, thereby implementing link detection, referring to fig. 2, the method may be implemented by interaction between a terminal device and a network device shown in fig. 1, and specifically includes the following steps:

s201, the network device determines a transmission period of paging beacon information and a transmission duration of the paging beacon.

When the terminal equipment is in an idle state, in order to detect the receiving state of the paging channel of the terminal equipment, the embodiment of the application provides paging beacon information, wherein the paging beacon information is information which is sent regularly, and if the terminal equipment can not receive the paging beacon information, the terminal equipment can judge that the paging channel is abnormally received according to the paging beacon information. The transmission period of the paging beacon information means that the paging beacon information is transmitted at a certain period, and the transmission period of the paging beacon information may be a preset value, for example: the transmission period of the paging beacon is set to 5 minutes. The transmission duration of the paging beacon means a duration of transmitting the paging beacon in the transmission period of the paging beacon information, and for example, the transmission duration of the paging beacon is set to 1 minute in the transmission period of the paging beacon. The following describes in detail the transmission period of the paging beacon information and the transmission duration of the paging beacon, taking fig. 3 as an example, wherein the transmission period of the paging beacon information may include a plurality of POs as shown in fig. 3; the transmission duration of the paging beacon is shown as a shaded set of POs in fig. 3, where the shaded set of POs is included in a plurality of POs included in the transmission period of the paging beacon information, as shown in fig. 3. In one possible implementation, the paging beacon may be carried on a shaded set of POs corresponding to the duration of transmission of the paging beacon shown in fig. 3, and transmitted at a time corresponding to each PO.

In one example, the transmission duration of the paging beacon is determined according to the maximum value of the paging cycle of each terminal device in the target cell, and may include the steps of: the network device transmits the default paging cycle of the cell in the cell broadcast, and all the terminal devices in the cell set the paging cycle of the terminal device according to the default paging cycle of the cell, for example, the paging cycle set by the terminal device is smaller than or equal to the default paging cycle of the cell, so that the network device transmits the paging beacon according to the default paging cycle of the cell, and all the terminals in the cell can be ensured to receive the paging beacon information.

And S202, the network equipment determines the initial sending moment of the paging beacon according to the sending period of the paging beacon and the sending duration of the paging beacon.

The starting transmission time of the paging beacon indicates from which specific time the paging beacon starts to be transmitted, and specifically, the network device determining the starting transmission time of the paging beacon may include the steps of: the network equipment determines the transmission duration of the corresponding paging beacon in the transmission period of each paging beacon; the network equipment transmits the paging beacon information at the moment corresponding to the paging occasion contained in the transmission duration of the paging beacon; for example, the transmission period of the paging beacon is as shown in fig. 3, and includes 9 POs; the transmission duration of the paging beacon is shown in fig. 3, including 4 shaded POs; the network device may set the starting transmission time of the paging beacon to be the first of the 4 shaded POs from the left in fig. 3, as shown in fig. 3.

And S203, the network equipment transmits paging beacon information to the terminal equipment at the initial transmission moment of the paging beacon.

The paging beacon information is used for checking the receiving state of the paging channel of the terminal device, wherein if the terminal device cannot receive the paging beacon information according to a preset period (such as a transmission period of the paging beacon information), or the received paging beacon information does not conform to an expected value, the receiving state of the paging channel can be determined to be an abnormal state. The paging beacon information may be sent by the network device to the terminal device, and the network device sends the paging beacon to the terminal device on a set of POs during a transmission period of the paging beacon information; preferably, the network device sets a paging cycle, so that all the POs monitored by the terminal device can be included in the group of POs, thereby ensuring that all the terminal devices that need to receive the paging beacon information can receive the paging beacon information.

In one example, the paging beacon information may be predefined information, such as: the paging beacon may be a fixed indication or value (e.g., paging beacon value of 1); alternatively, the paging beacon information may be information determined according to a terminal device identification of the terminal device, for example: different terminal devices can monitor different PFs and corresponding POs in the PFs in a scattered manner, wherein all UE IDs with the same value of the UE ID mode N and the UE ID/N are mapped to the same PF and the corresponding POs in the PF; the present embodiments define two PO-related parameters F1 and F2, where f1=ue ID mode N, f2=ue ID/N, the values of F1 and F2 will determine which ue_ids are associated with the PO. In one possible implementation, the paging beacon information may be derived from F1 and F2, for example: the paging beacon information is F1 cascade F2, or the paging beacon information is f1+f2. In another possible implementation, the paging beacon information may also be obtained according to F1, F2, and pf_offset, which is not limited by this embodiment.

In one example, a network device transmits paging beacon configuration information to a terminal device, wherein the paging beacon configuration information is used for enabling the terminal device to determine a transmission period of the paging beacon information and a receiving moment of the paging beacon information; the paging beacon configuration information may include, but is not limited to, a transmission period of the paging beacon information, a transmission duration of the paging beacon, a starting transmission time of the paging beacon, and the like. In a possible embodiment, according to the paging beacon configuration information, the paging beacon included in the paging beacon information starts to be transmitted at the initial transmission time of the paging beacon and keeps being transmitted in the transmission duration of the paging beacon, and once the transmission duration of the paging beacon is finished, the paging beacon is transmitted, that is, the paging beacon is transmitted only in a specified duration in the transmission period of the paging beacon information.

In one example, the paging beacon information may be included in a paging message, and the network device may send the paging message including the paging beacon information to the terminal device. Wherein paging beacon information may be sent in a paging message together with the paged ue_id, for example: the paging message includes UE ID1, UE ID2 and paging beacon information; paging beacon information may also be sent separately in paging messages, such as: the paging message includes paging beacon information.

S204, the terminal equipment receives the paging beacon information.

The terminal equipment can monitor the paging channel to monitor the corresponding PO, if the monitored PO comprises the paging beacon information, the terminal equipment receives the paging beacon information at the moment corresponding to the PO.

In one example, the terminal device may determine a reception time of the paging beacon information according to the paging beacon configuration information, for example: the network device sends paging beacon configuration information to the terminal device, the terminal device determines the receiving time of the paging beacon information according to the initial sending time of the paging beacon information in the received paging beacon configuration information, specifically, the terminal device determines the receiving period and the receiving time of the paging beacon information according to the sending period of the paging beacon information and the initial sending time of the paging beacon, and receives the paging beacon information at the receiving time of the corresponding paging beacon information in the receiving period of each paging beacon.

S205, the terminal equipment detects the receiving state of the paging channel according to the paging beacon information.

In one example, the detecting, by the terminal device, the reception state of the paging channel according to the paging beacon information specifically includes: if the terminal device does not receive the paging beacon information within a time period (at least one paging beacon period), the terminal device determines that the paging channel is in an abnormal state, for example, after the terminal device resides in a cell, receives configuration information of the paging beacon, determines a sending period of the paging beacon, determines a time period according to the period, and if the paging beacon information is not received within the time period, considers that the paging beacon is received abnormally, and further determines that the paging channel is received abnormally.

In one example, the detecting, by the terminal device, the reception state of the paging channel according to the paging beacon information specifically includes: if the terminal equipment does not receive the paging beacon information any more within a time period (at least one paging beacon period) after receiving the paging beacon information, the terminal equipment determines that the reception of the paging channel is in an abnormal state; for example: the terminal device detects and receives the paging beacon information at the PO corresponding to the initial transmission time of the paging beacon shown in fig. 3, but does not detect the paging beacon information at the initial transmission time of the next paging beacon shown in fig. 3, the terminal device may determine that the reception of the paging channel is in an abnormal state.

In one example, the detecting, by the terminal device, the reception state of the paging channel according to the paging beacon information specifically includes: if the terminal device does not receive paging beacon information (including paging messages sent to the terminal or paging messages sent to the terminal) in a time period (at least one paging beacon period), the terminal device determines that the paging channel is in an abnormal state, for example, if the paging messages can be received in a time period, or if the paging beacons can be received, the paging channel is considered to be normally received, otherwise, the paging channel is considered to be in an abnormal state.

In one example, the detecting, by the terminal device, the reception state of the paging channel according to the paging beacon information specifically includes: if the terminal equipment receives paging beacon information or after the terminal resides in a cell, the terminal equipment starts or restarts a paging beacon detection timer, and if the paging beacon detection timer is overtime, the terminal equipment determines that the paging channel reception is in an abnormal state. The paging beacon detection timer is used for judging whether the terminal equipment receives the paging beacon information again within a preset time length, and the working principle is as follows: after receiving the paging beacon information, the terminal device starts or restarts a paging beacon detection timer, wherein the timeout period of the timer may be determined according to the paging beacon configuration information, for example: the sending period of the paging beacon information in the configuration information of the paging beacon is 2 minutes, and the timeout duration of the timer can be set to be more than or equal to 2 minutes (such as 4 minutes); if the paging beacon detection timer is overtime, for example, the timeout duration of the timer is set to be 4 minutes, and the timer overtime indicates that no paging beacon is detected in two paging beacon periods, the terminal equipment determines that the paging channel reception is in an abnormal state.

In one example, the detecting, by the terminal device, the reception state of the paging channel according to the paging beacon information specifically includes: the terminal equipment determines the position of the PO to be monitored according to F1 and F2, after the terminal equipment receives the paging beacon information on the corresponding PO, the terminal equipment can check after the paging beacon calculated according to F1 and F2, if the PO position of the terminal is calculated in error, the paging beacon read by the terminal from the PO is different from the paging beacon expected by the terminal equipment, so that the paging channel monitoring is judged to be abnormal.

In one example, the detecting, by the terminal device, the reception state of the paging channel according to the paging beacon information specifically includes: determining a paging beacon detection value according to the terminal equipment identifier of the terminal equipment; if the paging beacon detection value is different from the value indicated by the paging beacon information, the terminal equipment determines that the paging channel reception is in an abnormal state; for example: the terminal equipment can read the paging beacon detection value in the paging beacon information, if the paging beacon detection value comprises F1 and F2, the terminal equipment calculates corresponding F1 'and F2' according to the UE_ID of the terminal equipment, compares the F1 and the F1', and compares the F2 and the F2'; if f1=f1 ', f2=f2', the terminal device determines that the receiving state of the paging channel is a normal state; if f1+.f1 ', and/or f2+.f2', the terminal device determines that the paging channel reception is in an abnormal state.

It can be seen that the embodiment of the present application provides a link detection method, which is interactively executed by a network device and a terminal device, where the network device determines an initial transmission time of a paging beacon according to a transmission period of the paging beacon and a transmission duration of the paging beacon by setting the transmission period of the paging beacon and the transmission duration of the paging beacon, and transmits paging beacon information to the terminal device at the initial transmission time of the paging beacon; the terminal device detects the reception state of the paging channel by receiving the paging beacon information and based on the paging beacon information. Therefore, in the scheme, the network equipment can send the paging beacon information to the terminal equipment according to the sending period of the paging beacon, so that the terminal equipment is facilitated to receive the paging beacon information at the appointed moment; the terminal equipment judges whether the receiving state of the paging channel is in a normal state or not by detecting whether the received data comprises the paging beacon information or not, so that the terminal equipment can timely find whether the link is in an abnormal state or not.

An embodiment of the present application provides a link detection method, referring to fig. 4, where the method may be implemented by interaction between a network device and a terminal device shown in fig. 1, and may include the following steps:

S401, the network device performs link detection on the accessed terminal device.

The network device may perform link detection on the accessed terminal device when the terminal device is in a connected state, where the method of performing link detection by the network device when the terminal device is in a connected state may include, but is not limited to: detecting first information sent by terminal equipment, wherein the first information is used for indicating that a radio bearer of the accessed terminal equipment is in a normal state; sending second information to the accessed terminal equipment, and judging whether a link is normal or not according to a state report of the terminal equipment on the second information; carrying out integrity protection check and the like on the terminal equipment; the following is a detailed description of various embodiments.

In one example, referring to fig. 5, the network device performing link detection on the accessed terminal device specifically includes the following steps:

s11, the network device detects first information sent by the accessed terminal device, wherein the first information is used for indicating that the wireless bearer of the accessed terminal device is normal;

and s12, if the first information of the accessed terminal equipment is not detected in a preset period, the network equipment determines that the link is abnormal.

The first information provided in the embodiment of the present application is keep-alive information sent by the terminal device, where the keep-alive information is generated by the terminal device and is used to indicate that a radio bearer of the terminal device is normal. The keep-alive information may include a transmission period of the keep-alive information and a length of the keep-alive information, where the terminal device transmits a keep-alive indication to the network device in the transmission period of the keep-alive information, where the keep-alive indication may be a separate data packet or may be embedded in a packet data convergence protocol (Packet Data Convergence Protocol, PCDP) data packet; the keep-alive indication may be a bit or a sequence. The length of the keep-alive information may be a frame length of the keep-alive indication, and when the keep-alive indication is one bit, the length of the keep-alive information is 1; when the keep-alive indication is a sequence, the length of the keep-alive information is the maximum value of the sequence. The keep-alive information is schematically shown in fig. 6a and 6b, where fig. 6a is a schematic view of keep-alive information when the keep-alive indicator is embedded in a PDCP packet, and fig. 6b is a schematic view of keep-alive information when the keep-alive indicator is a separate packet. Because the first information is sent to the network device by the terminal device according to a certain period (such as the period of the keep-alive frame), if the network device receives the first information in a time period (at least one period of the keep-alive frame), the network device can determine that the link is normal; otherwise, if the network device does not receive the first information within a period of time, the network device may determine that the link is abnormal.

In one example, referring to fig. 7, the network device performing link detection on the accessed terminal device specifically includes the following steps:

s21, the network device sends second information to the accessed terminal device, wherein the second information is used for requesting a status report of the accessed terminal device;

s22, if the status report of the accessed terminal equipment is not received within the preset time, the network equipment determines that the link is abnormal.

The second information provided in the embodiment of the present application is a radio link control protocol (Radio Link Control, RLC) data packet, where the network device may send the RLC data packet to the terminal device to request a status report of the terminal device, and then determine whether the link is abnormal by detecting whether the terminal device feeds back the status report; for example, the network device sends an RLC data packet to the terminal device, the terminal feeds back a status report to the RLC data packet, and if the status report is received in a preset time period, the network device determines that the link is in a normal state; otherwise, if the network equipment does not receive the status report fed back by the terminal equipment within the preset time period, the network equipment determines that the link is in an abnormal state.

In one example, the network device performing link detection on the accessed terminal device specifically includes the following steps: and the network equipment performs integrity protection check on the terminal equipment, wherein the integrity protection check comprises counting the times of check failure. The embodiment may employ PDCP integrity protection verification, for example, the network device detects the received PDCP data packet of the terminal device, and counts the number of failure times of the received PDCP data packet integrity protection verification of the terminal device; if the number of times of failure of the integrity protection check of the PDCP data packet of the terminal equipment does not exceed a preset threshold value in a certain time period, the network equipment determines that the link is in a normal state; otherwise, if the number of failure times of the integrity protection check of the PDCP data packet of the terminal equipment exceeds a preset threshold value, the network equipment determines that the link is in an abnormal state.

In one example, the network device performing link detection on the accessed terminal may further include the steps of: the network device may send third information to the accessed terminal device in a preset period, where the third information is used to indicate that a radio bearer of the accessed terminal device is normal, where the third information sent by the network device may also be keep-alive information, where the keep-alive information is generated by the network device, and the terminal device determines whether a link of the radio bearer is abnormal by detecting whether the keep-alive information sent by the network device is received. It may be appreciated that the keep-alive information sent by the network device may also include a sending period of the keep-alive information and a length of the keep-alive information, and the detailed description will refer to the description of the embodiment of fig. 5, which is not repeated herein.

And S402, if the link detection result is that the link is abnormal, the network equipment generates wireless resource control release information, wherein the wireless resource control release information is used for indicating the link abnormality.

The radio resource control release information may indicate a link abnormality, and may further indicate a cause of the link abnormality or a radio bearer identification of the abnormality (such as which radio bearer of a sequence number is in an abnormal state), where the cause of the link abnormality may include, but is not limited to: the method comprises the steps that first information of the terminal equipment is not detected in a preset period, a status report of the accessed terminal equipment is not received in a preset time period, integrity check protection of the accessed terminal equipment fails, and the like.

In one example, if the first information of the accessed terminal device is not detected within a preset period, the network device generates radio resource control release information, wherein the radio resource control release information indicates that the first information of the terminal device is not detected within the preset period; for example, if the network device does not detect the keep-alive instruction of the terminal device in the transmission period of the keep-alive information, it is determined that the link is in an abnormal state, and radio resource control release information is generated, where the radio resource control release information may indicate that the keep-alive instruction of the terminal device is not detected in the transmission period of the keep-alive information.

In one example, if the status report of the accessed terminal device is not received within a preset time period, the network device generates radio resource control release information, wherein the radio resource control release information indicates that the status report of the accessed terminal device is not received within the preset time period; for example, the network device sends an RLC data packet to the terminal device, and starts a status report timer, if the status report timer times out and the network device does not receive a status report fed back by the terminal device, it determines that the link is in an abnormal state, and generates radio resource control release information, where the radio resource control release information may indicate that the status report of the accessed terminal device is not received within a preset duration.

In one example, if the number of check failures exceeds a threshold, the network device generates radio resource control release information, where the radio resource control release information indicates that the access terminal device fails to perform integrity check protection; for example, the network device counts the number of times of failure of integrity protection check of the received PDCP data packet of the terminal device, if the number of times of failure of integrity protection check of the PDCP data packet of the terminal device exceeds a preset threshold, determines that the link is in an abnormal state, and generates radio resource control release information, where the radio resource control release information may indicate failure of integrity protection check of the accessed terminal device.

And S403, the network equipment sends the wireless resource control release information to the terminal equipment.

After the network device generates the radio resource control release information, the radio resource control release information may be sent to the terminal device to notify the terminal device of the link abnormality, where the radio resource control release information may include a cause of the link abnormality, and the terminal device may process the abnormality according to the cause of the link abnormality.

S404, the terminal equipment receives the wireless resource control release information sent by the network equipment, wherein the wireless resource control release information is used for indicating abnormal link.

The radio resource control release information is used for indicating the link abnormality and also can indicate the reason of the link abnormality, wherein the radio resource control release information can indicate at least one of the following: detecting the abnormal radio bearer of the terminal equipment in a preset period, and not receiving a state report of the terminal equipment in a preset time period, wherein the integrity check protection of the terminal equipment fails, and the abnormal radio bearer is identified. It can be appreciated that the terminal device receives the radio resource control release information and can timely acquire the link abnormality information for further processing.

Optionally, before the terminal device receives the radio resource control release information sent by the network device, the terminal device receives a first information sending period configured by the network device, and sends the first information to the network device according to the first information sending period, so that the network device determines whether the link is abnormal according to the first information. Alternatively, the first information sending period may be associated with a bearer, for example, different bearers may configure the same sending period or different sending periods, which is not limited in this application.

Optionally, before the terminal device receives the radio resource control release information sent by the network device, the terminal device receives a third information sending period configured by the network device, and the terminal device receives the third information sent by the network device according to the third information sending period, where the third information is used to indicate that a radio bearer of the accessed terminal device is normal; if the terminal device does not receive the third information within a certain period of time (for example, within a transmission period of the third information), the terminal device may determine that the link is abnormal. Further, the terminal device may report the abnormal information to the network device, so that the network device releases the connection of the terminal device according to the abnormal information; the report information may indicate a link abnormality, and may further indicate a cause of the link abnormality or indicate an abnormal radio bearer identifier (e.g., which radio bearer of a sequence number is in an abnormal state).

S405, the terminal equipment determines the abnormal link according to the wireless resource control release information.

After receiving the radio resource control release information, the terminal device can determine the link abnormality and also can acquire the reason of the link abnormality, for example, the radio resource control release information received by the terminal device indicates that the radio bearer of the terminal device is detected to be abnormal in a preset period, and the abnormal radio bearer sequence number is 1, so that the terminal device can determine that the radio bearer of the terminal device is abnormal and further process the corresponding radio bearer.

In one example, after determining that the link is abnormal, the terminal device may further perform the following steps: transmitting radio resource control release information to a communication high layer, wherein the communication high layer comprises a non-access layer and an application layer; receiving the modem chip processing instruction information sent by the communication high layer, and processing the modem chip according to the modem chip processing instruction information; for example, the access layer of the terminal device sends the radio resource control release information carrying the link abnormality information to a communication higher layer (such as a non-access layer), and the communication higher layer determines to process the abnormality according to the link abnormality information (such as detecting that the radio bearer of the terminal device is abnormal in a preset period, and the abnormal radio bearer sequence number is 1), so that the modem chip of the terminal device can be restarted.

It can be seen that the embodiments of the present application provide a link detection method, where the method may be interactively performed by a network device and a terminal device, where the network device performs link detection on an accessed terminal device, and if a link abnormality of the accessed terminal device is detected, generates radio resource control release information for indicating the link abnormality, and sends the radio resource control release information to the terminal device; and the terminal equipment receives the radio resource control release information and determines the abnormal link according to the radio resource control release information. By adopting the scheme, the terminal equipment can timely find out the abnormal condition of the link.

The following describes the related devices of the embodiments of the present application in detail with reference to fig. 8 to 11.

An embodiment of the present application provides a schematic structure diagram of a link detection apparatus, as shown in fig. 8, and the link detection apparatus 800 may be used to implement a link detection method performed by a terminal device in fig. 2. The link detection apparatus 800 may include:

a receiving unit 801 for receiving paging beacon information;

a detecting unit 802, configured to detect a reception state of a paging channel according to the paging beacon information.

In one implementation, the detection unit 802 may specifically be configured to: and when the paging beacon information received by the receiving unit is first paging beacon information and the second paging beacon information is not received in a time period after the receiving unit receives the first paging beacon information, determining that the paging channel is in an abnormal state.

In one implementation, the detection unit 802 may specifically be configured to: after the receiving unit receives the first paging beacon information, starting or restarting a paging beacon detection timer; and if the paging beacon detection timer is overtime, determining that the paging channel reception is in an abnormal state.

In one implementation, the receiving unit 801 may specifically be configured to: receiving paging beacon configuration information, the paging beacon configuration information including at least one of:

the transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

In one implementation, a timeout period for determining whether the paging beacon detection timer times out is determined based on a transmission period of paging beacon information.

In one implementation, the paging beacon information is predefined information, or the paging beacon information is information determined according to a terminal device identifier of the terminal device.

In one implementation, the detection unit 802 may specifically be configured to: when detecting the receiving state of the paging channel according to the paging beacon information, determining a paging beacon detection value according to the terminal equipment identifier;

And if the paging beacon detection value is different from the value indicated by the paging beacon information, determining that the paging channel reception is in an abnormal state.

In one implementation, the receiving unit 801 may specifically be configured to: and receiving a paging message at a paging moment, wherein the paging message comprises paging beacon information.

An embodiment of the present application provides a schematic structure diagram of a link detection apparatus, as shown in fig. 9, where the link detection apparatus 900 may be used to implement a link detection method performed by a network device in fig. 2. The link detection apparatus 900 may include:

a determining unit 901 for determining a transmission period of paging beacon information and a transmission duration of a paging beacon;

the determining unit 901 is further configured to determine an initial transmission time of a paging beacon according to a transmission period of the paging beacon information and a transmission duration of the paging beacon;

a transmitting unit 902, configured to transmit paging beacon information at a starting transmission time of the paging beacon.

In one implementation, the determining unit 901 may specifically be configured to: determining the transmission duration of the paging beacon corresponding to each paging beacon in the transmission period of the paging beacon when determining the initial transmission moment of the paging beacon according to the transmission period of the paging beacon and the transmission duration of the paging beacon;

And transmitting the paging beacon information at the moment corresponding to the paging occasion contained in the paging beacon transmission duration.

In one implementation, the sending unit 902 may specifically be configured to: and when the paging beacon information is sent at the sending moment of the paging beacon, the paging beacon information is carried in the paging message and is sent to the terminal equipment.

In one implementation, the sending unit 902 may specifically be configured to: transmitting paging beacon configuration information at the paging beacon transmission time, the paging beacon configuration information including at least one or a combination of the following:

the transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

In one implementation, the paging beacon information is generated according to a preset fixed value or is determined according to the time at which the paging beacon is located.

In one implementation, the determining unit 901 may specifically be configured to: and determining corresponding paging beacon information according to the moment of the paging beacon, wherein the corresponding paging beacon information is obtained by calculating according to the terminal equipment identifier.

In one implementation, the duration of sending the paging beacon is determined according to the maximum value of paging cycles of each terminal device in the target cell.

An embodiment of the present application provides a schematic structure diagram of a link detection apparatus, as shown in fig. 10, where the link detection apparatus 1000 may be used to implement a link detection method performed by a network device as shown in fig. 4. The link detection apparatus 1000 may include:

a detection unit 1001, configured to perform link detection on an accessed terminal device;

a generating unit 1002, configured to generate radio resource control release information if the link detection result is that the link is abnormal, where the radio resource control release information is used to indicate that the link is abnormal;

a transmitting unit 1003, configured to transmit the radio resource control release information to a terminal device.

In one implementation, the detection unit 1001 may specifically be configured to: and detecting first information sent by the accessed terminal equipment when the link detection is carried out on the accessed terminal equipment, wherein the first information is used for indicating that the radio bearer of the accessed terminal equipment is in a normal state.

In one implementation, the generating unit 1002 may specifically be configured to: and if the first information of the accessed terminal equipment is not detected in the preset period, generating radio resource control release information, wherein the radio resource control release information indicates that the first information of the terminal equipment is not detected in the preset period.

In one implementation, the detection unit 1001 may specifically be configured to: and when the link detection is carried out on the accessed terminal equipment, sending second information to the accessed terminal equipment, wherein the second information is used for requesting the status report of the accessed terminal equipment.

In one implementation, the generating unit 1002 may specifically be configured to: and if the status report of the accessed terminal equipment is not received within the preset time length, generating wireless resource control release information, wherein the wireless resource control release information indicates that the status report of the accessed terminal equipment is not received within the preset time length.

In one implementation, the detection unit 1001 may specifically be configured to: and when the link detection is carried out on the accessed terminal equipment, carrying out integrity protection check on the accessed terminal equipment, wherein the integrity protection check comprises counting the times of check failure.

In one implementation, the generating unit 1002 may specifically be configured to: and if the number of times of verification failure exceeds a threshold value, generating radio resource control release information, wherein the radio resource control release information indicates that the integrity verification protection of the accessed terminal equipment fails.

In one implementation, the radio resource control release information further indicates an abnormal radio bearer identity.

An embodiment of the present application provides a schematic structure diagram of a link detection apparatus, as shown in fig. 11, where the link detection apparatus 1100 may be used to implement a link detection method performed by a terminal device as shown in fig. 4. The link detection apparatus 1100 may include:

a receiving unit 1101, configured to receive radio resource control release information sent by a network device, where the radio resource control release information is used to indicate a link abnormality;

a determining unit 1102, configured to determine a link abnormality according to the radio resource control release information.

In one implementation, the radio resource control release information indicates at least one of:

the radio bearer abnormality of the terminal device is detected within a preset period,

the status report of the terminal device is not received within a preset time period,

the integrity check protection of the terminal device fails,

abnormal radio bearer identification.

In one implementation, the link detection apparatus 1100 further includes a processing unit 1103; the processing unit 1103 may be specifically configured to: transmitting the radio resource control release information to a communication high layer, wherein the communication high layer comprises a non-access layer and an application layer;

And receiving the modem chip processing instruction information sent by the communication high layer, and processing the modem chip according to the modem chip processing instruction information.

The embodiment of the present application further provides a link detection apparatus, as shown in fig. 12, where the apparatus 1200 may include a processor 1201 and a transceiver 1202, and the processor 1201 and the transceiver 1202 may be connected to each other by one or more communication buses, or may be connected by other manners. The related functions implemented by the detection unit 802 shown in fig. 8 may be implemented by the same processor 1201, or may be implemented by a plurality of different processors 1201; similarly, the functions of the determining unit 1102 and the processing unit 1103 shown in fig. 11 may be implemented by the same processor 1201 or may be implemented by a plurality of different processors 1201. The processor 1201 may include one or more processors, for example, the processor 1201 may be one or more central processing units (central processing unit, CPU), network processors (network processor, NP), hardware chips, or any combination thereof. In the case where the processor 1201 is one CPU, the CPU may be a single core CPU or a multi-core CPU.

The transceiver 1202 may also be referred to as a transceiver, transceiving means, etc.; alternatively, a device for implementing a receiving function in the transceiver 1202 may be regarded as a receiver, which may also be referred to as a receiver, an input port, a receiving circuit, or the like; the device for implementing the transmitting function in the transceiver 1202 is regarded as a transmitter, which may be referred to as a transmitter, a transmitting circuit, or the like; wherein the related functions implemented by the receiving unit 801 shown in fig. 8 can be implemented by the transceiver 1202; also, the relevant functions implemented by the receiving unit 1101 shown in fig. 11 can be implemented by the transceiver 1202.

The apparatus 1200 may further comprise a memory 1203, the memory 1203 being for storing program codes or the like. Memory 1203 may include volatile memory, such as random access memory (random access memory, RAM); the memory 1203 may also include a nonvolatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD) or a Solid State Drive (SSD); the memory 1203 may also include a combination of the above types of memories.

In one example, the processor 1201 and transceiver 1202 described above may be used to implement a link detection method as performed by the terminal device in fig. 2, wherein the transceiver 1202 is used to receive paging beacon information; processor 1201 is configured to detect a reception status of a paging channel based on the paging beacon information.

In one implementation, the processor 1201 is specifically configured to: and when the paging beacon information received by the transceiver is first paging beacon information and the second paging beacon information is not received within a time period after the transceiver receives the first paging beacon information, determining that the paging channel reception is in an abnormal state.

In one implementation, the processor 1201 is specifically configured to: starting or restarting a paging beacon detection timer after the transceiver receives the first paging beacon information; and if the paging beacon detection timer is overtime, determining that the paging channel reception is in an abnormal state.

In one implementation, the transceiver 1202 is specifically configured to: receiving paging beacon configuration information, the paging beacon configuration information including at least one of:

the transmission period of the paging beacon information,

The duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

In one implementation, the processor 1201 is specifically configured to: when detecting the receiving state of the paging channel according to the paging beacon information, determining a paging beacon detection value according to the terminal equipment identifier;

In one implementation, the transceiver 1202 is specifically configured to: and receiving a paging message at a paging moment, wherein the paging message comprises paging beacon information.

In one example, the processor 1201 and transceiver 1202 described above may be used to implement a link detection method as performed by the network device in fig. 2, wherein the processor 1201 is configured to determine a transmission period of paging beacon information and a transmission duration of a paging beacon; the method is also used for determining the initial sending moment of the paging beacon according to the sending period of the paging beacon information and the sending duration of the paging beacon; a transceiver 1202 for transmitting paging beacon information at a starting transmission time of the paging beacon.

In one implementation, the processor 1201 is specifically configured to: determining the transmission duration of the paging beacon corresponding to each paging beacon in the transmission period of the paging beacon when determining the initial transmission moment of the paging beacon according to the transmission period of the paging beacon and the transmission duration of the paging beacon;

In one implementation, the transceiver 1202 is specifically configured to: and when the paging beacon information is sent at the sending moment of the paging beacon, the paging beacon information is carried in the paging message and is sent to the terminal equipment.

In one implementation, the transceiver 1202 is specifically configured to: transmitting paging beacon configuration information at the paging beacon transmission time, the paging beacon configuration information including at least one or a combination of the following:

the transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

In one implementation, the processor 1201 is specifically configured to: and determining corresponding paging beacon information according to the moment of the paging beacon, wherein the corresponding paging beacon information is obtained by calculating according to the terminal equipment identifier.

In one example, the processor 1201 and the transceiver 1202 described above may be used to implement a link detection method as performed by the network device in fig. 4, where the processor 1201 is used to perform link detection for an accessed terminal device; the method is also used for generating wireless resource control release information if the link detection result is abnormal, wherein the wireless resource control release information is used for indicating the abnormal link; a transceiver 1202 for transmitting the radio resource control release information to a terminal device.

In one implementation, the processor 1201 is specifically configured to: and detecting first information sent by the accessed terminal equipment when the link detection is carried out on the accessed terminal equipment, wherein the first information is used for indicating that the radio bearer of the accessed terminal equipment is in a normal state.

In one implementation, the processor 1201 is specifically configured to: and if the first information of the accessed terminal equipment is not detected in the preset period, generating radio resource control release information, wherein the radio resource control release information indicates that the first information of the terminal equipment is not detected in the preset period.

In one implementation, the processor 1201 is specifically configured to: and when the link detection is carried out on the accessed terminal equipment, sending second information to the accessed terminal equipment, wherein the second information is used for requesting the status report of the accessed terminal equipment.

In one implementation, the processor 1201 is specifically configured to: and if the status report of the accessed terminal equipment is not received within the preset time length, generating wireless resource control release information, wherein the wireless resource control release information indicates that the status report of the accessed terminal equipment is not received within the preset time length.

In one implementation, the processor 1201 is specifically configured to: and the integrity protection check is used for carrying out integrity protection check on the accessed terminal equipment when the link detection is carried out on the accessed terminal equipment, and the integrity protection check comprises counting the times of check failure.

In one implementation, the processor 1201 is specifically configured to: and if the number of times of verification failure exceeds a threshold value, generating radio resource control release information, wherein the radio resource control release information indicates that the integrity verification protection of the accessed terminal equipment fails.

In one example, the processor 1201 and the transceiver 1202 may be configured to implement a link detection method as performed by the terminal device in fig. 4, where the transceiver 1202 is configured to receive radio resource control release information sent by a network device, where the radio resource control release information is used to indicate a link abnormality; a processor 1201 is configured to determine a link abnormality according to the radio resource control release information.

the integrity check protection of the terminal device fails,

abnormal radio bearer identification.

In one implementation, the processor 1201 is specifically configured to: transmitting the radio resource control release information to a communication high layer, wherein the communication high layer comprises a non-access layer and an application layer;

Related devices according to embodiments of the present application are described in detail below with reference to fig. 13 and 14.

Fig. 13 is a schematic structural diagram of a terminal device provided in an embodiment of the present application, and as shown in fig. 13, the terminal device may be applied to the communication system shown in fig. 1, and perform the functions of the terminal device in the foregoing method embodiment. For convenience of explanation, fig. 13 shows only major components of the terminal device. As shown in fig. 13, the terminal apparatus 1300 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The processor is mainly configured to process the communication protocol and the communication data, control the entire terminal device, execute a software program, process the data of the software program, for example, support the terminal device to perform the actions described in the above method embodiments, for example, receive paging beacon information, detect the receiving state of the paging channel according to the paging beacon information, and so on. The memory is mainly used for storing software programs and data, such as storing paging beacon information in the above embodiments, or storing operation instructions for the paging beacon information in the above embodiments, and the like. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit together with the antenna, which may also be called a transceiver, is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user.

When the terminal device is started, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data is required to be transmitted wirelessly, the processor carries out baseband processing on the data to be transmitted and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit carries out radio frequency processing on the baseband signal and then transmits the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that for ease of illustration, fig. 13 shows only one memory and one processor. In an actual terminal device, there may be multiple processors and multiple memories. The memory may also be referred to as a storage medium or a storage device, and embodiments of the present application are not limited.

In one implementation, the processor may include a baseband processor, which is mainly used to process the communication protocol and the communication data, and/or a central processor, which is mainly used to control the entire terminal device, execute the software program, and process the data of the software program. The processors in fig. 13 may integrate the functions of the baseband processor and the central processor, and those skilled in the art will appreciate that the baseband processor and the central processor may also be separate processors, interconnected by bus technology, etc. Those skilled in the art will appreciate that the terminal device may include multiple baseband processors to accommodate different network formats, and that the terminal device may include multiple central processors to enhance its processing capabilities, and that the various components of the terminal device may be connected by various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, which is executed by the processor to realize the baseband processing function.

The processor may be configured to execute the instructions stored in the memory, so as to control the transceiver to receive signals and/or transmit signals, thereby completing the functions of the terminal device in the foregoing method embodiment. As an implementation, the functions of the transceiver may be considered to be implemented by a transceiver circuit or a dedicated chip for transceiving.

Fig. 14 is a schematic structural diagram of a network device provided in the embodiment of the present application, and as shown in fig. 14, the network device may be applied to the system shown in fig. 1 to perform the functions of the network device in the embodiment of the method described above. The network device 1400 may include one or more radio frequency units, such as a remote radio frequency unit (remote radio unit, RRU) 1401, and one or more baseband units (BBU) 1402.RRU1401 may be referred to as a transceiver unit, transceiver circuitry, or transceiver, etc., which may include at least one antenna and a radio frequency unit. The RRU1401 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals, for example, for transmitting paging beacon information described in the above embodiments to a terminal device. The BBU1402 is mainly used for baseband processing, control of network devices, and the like. The RRU and BBU may be physically located together or may be physically separate, i.e. distributed base stations.

In one example, the BBU 1402 may be formed of one or more single boards, where the multiple single boards may support a single access indicated radio access network (e.g., an LTE network) together, or may support different access schemes of radio access networks (e.g., an LTE network, a 5G network, or other networks) respectively. The BBU 1402 also includes a memory and a processor, wherein the memory is configured to store necessary instructions and data, such as paging beacon information and paging beacon configuration information, etc., in the above-described embodiments; the processor is configured to control the network device to perform corresponding operations, for example, to control the network device to perform relevant operations in the above method embodiments. The memory and processor may serve one or more boards, that is, the memory and processor may be provided separately on each board; the same memory and processor may be shared by multiple boards, which is not limited in this application.

The embodiment of the application also provides a processor, which comprises at least one circuit for executing the link detection method according to any of the above method embodiments. The processor may be a chip, and may execute instructions or programs designed for implementing the terminal device in the above embodiment.

The embodiment of the application also provides a processor, which comprises at least one circuit for executing the link detection method according to any of the above method embodiments. The processor may be a chip, and may execute instructions or programs designed to implement the network device in the above embodiments.

The present application also provides a computer program product, which includes a program or instructions, which when executed on a computer, cause the computer to perform the link detection method according to any one of the method embodiments.

The embodiment of the application also provides a chip system, which comprises a processor, wherein the processor is used for realizing the link detection method of any one of the method embodiments. In a possible implementation, the chip system further comprises a memory for holding program instructions and data necessary for implementing the functions of the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

The embodiment of the application also provides a chip system, which comprises a processor, wherein the processor is used for realizing the link detection method of any one of the method embodiments. In one possible implementation, the chip system further includes a memory for holding program instructions and data necessary to implement the functions of the network device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

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

Claims

1. A method of link detection, comprising:

receiving paging beacon information; the paging beacon information is predefined information or determined according to the terminal equipment identifier of the terminal equipment;

And detecting the receiving state of the paging channel according to the paging beacon information.

2. The method according to claim 1, wherein the paging beacon information received is first paging beacon information, and the detecting the reception state of the paging channel according to the paging beacon information includes:

and in a time period after receiving the first paging beacon information, if the second paging beacon information is not received, determining that the paging channel is in an abnormal state.

3. The method of claim 2, wherein the determining that the paging channel reception is in an abnormal state if no second paging beacon information is received within a period of time after receiving the first paging beacon information comprises:

after receiving the first paging beacon information, starting or restarting a paging beacon detection timer;

and if the paging beacon detection timer is overtime, determining that the paging channel reception is in an abnormal state.

4. A method according to any one of claims 1-3, wherein the method further comprises:

receiving paging beacon configuration information, the paging beacon configuration information including at least one of:

The transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

5. The method of claim 4, wherein the timeout period for determining whether the paging beacon detection timer expires is determined based on a transmission period of paging beacon information.

6. The method of claim 1, wherein said detecting the reception state of the paging channel based on the paging beacon information comprises:

determining a paging beacon detection value according to the identification of the terminal equipment;

7. A method according to any of claims 1-3, wherein said receiving paging beacon information comprises:

and receiving a paging message at a paging moment, wherein the paging message comprises paging beacon information.

8. A method of link detection, comprising:

determining a transmission period of paging beacon information and a transmission duration of a paging beacon;

determining the initial sending moment of the paging beacon according to the sending period of the paging beacon information and the sending duration of the paging beacon;

And sending paging beacon information at the initial sending moment of the paging beacon, wherein the paging beacon information is generated according to a preset fixed value or is determined according to the moment of the paging beacon.

9. The method of claim 8, wherein the determining the starting transmission time of the paging beacon based on the transmission period of the paging beacon and the transmission duration of the paging beacon comprises:

determining the transmission duration of the corresponding paging beacon in the transmission period of each paging beacon;

10. The method of claim 8, wherein said transmitting paging beacon information at the time of the initial transmission of the paging beacon comprises:

and sending the paging beacon information carried in the paging message to the terminal equipment.

11. The method according to any one of claims 8-10, further comprising:

transmitting paging beacon configuration information at a starting transmission time of the paging beacon, the paging beacon configuration information including at least one or a combination of the following:

The transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

12. The method of claim 8, wherein the paging beacon information is determined based on a time at which the paging beacon is located, comprising:

and determining corresponding paging beacon information according to the moment of the paging beacon, wherein the corresponding paging beacon information is obtained by calculating according to the identification of the terminal equipment.

13. The method according to any of claims 8-10, characterized in that the transmission duration of the paging beacon is determined based on the maximum value of the paging cycle of the respective terminal device in the target cell.

14. A link detection apparatus, comprising: a processor and a transceiver;

the transceiver is used for receiving paging beacon information; the paging beacon information is predefined information or determined according to the terminal equipment identifier of the terminal equipment;

the processor is configured to detect a reception state of a paging channel according to the paging beacon information.

15. The apparatus of claim 14, wherein the processor is configured to determine that the paging channel reception is in an abnormal state when the paging beacon information received by the transceiver is first paging beacon information and no second paging beacon information is received by the transceiver within a time period after the first paging beacon information is received by the transceiver.

16. The apparatus of claim 15, wherein the processor is configured to start or restart a paging beacon detection timer after the transceiver receives the first paging beacon information; and if the paging beacon detection timer is overtime, determining that the paging channel reception is in an abnormal state.

17. The apparatus of any of claims 14-16, wherein the transceiver is further configured to receive paging beacon configuration information, the paging beacon configuration information comprising at least one of:

the transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

18. The apparatus of claim 17, wherein a timeout period for determining whether the paging beacon detection timer times out is determined based on a transmission period of paging beacon information.

19. The apparatus of claim 14, wherein the processor is configured to determine a paging beacon detection value based on an identification of the terminal device when detecting a reception state of a paging channel based on the paging beacon information;

20. The apparatus according to any of claims 14-16, wherein the transceiver is configured to receive a paging message at a paging occasion, the paging message including paging beacon information.

21. A link detection apparatus, comprising: a processor and a transceiver;

the processor is used for determining the transmission period of the paging beacon information and the transmission duration of the paging beacon;

the processor is further used for determining the initial sending moment of the paging beacon according to the sending period of the paging beacon information and the sending duration of the paging beacon;

the transceiver is configured to send paging beacon information at a starting sending time of the paging beacon, where the paging beacon information is generated according to a preset fixed value or is determined according to a time at which the paging beacon is located.

22. The apparatus of claim 21, wherein the processor is configured to determine a transmission duration of a corresponding paging beacon within each transmission period of the paging beacon when determining a starting transmission time of a paging beacon based on the transmission period of the paging beacon and the transmission duration of the paging beacon;

23. The apparatus of claim 21, wherein the transceiver is configured to send paging beacon information to a terminal device in a paging message carried by the paging beacon information when sending the paging beacon information at the paging beacon sending time.

24. The apparatus of any of claims 21-23, wherein the transceiver is further configured to transmit paging beacon configuration information at the paging beacon transmission time, the paging beacon configuration information including at least one or a combination of:

the transmission period of the paging beacon information,

the duration of the transmission of the paging beacon,

the starting transmission time of the paging beacon.

25. The apparatus of claim 21, wherein the processor is configured to determine corresponding paging beacon information based on a time at which the paging beacon is located, the corresponding paging beacon information being calculated based on an identity of a terminal device.

26. The apparatus according to any of claims 21-23, wherein the duration of transmission of the paging beacon is determined based on a maximum value of paging cycles of respective terminal devices within the target cell.

27. A terminal device, comprising: a processor and a memory;

the memory is used for storing a computer program;

the processor configured to execute a computer program stored in the memory to cause the terminal device to perform the method according to any one of claims 1-7.

28. A network device, comprising: a processor and a memory;

the memory is used for storing a computer program;

the processor configured to execute a computer program stored in the memory to cause the network device to perform the method of any one of claims 8-13.

29. A processor, the processor comprising: at least one circuit for performing the method of any of claims 1-7.

30. A processor, the processor comprising: at least one circuit for performing the method of any of claims 8-13.

31. A computer readable storage medium, characterized in that a computer program is stored in the computer readable storage medium, which, when being executed, implements the method according to any of claims 1-7.

32. A computer readable storage medium, characterized in that a computer program is stored in the computer readable storage medium, which, when being run, implements the method according to any one of claims 8 to 13.