Connection control method and device, wireless communication system, storage medium, and device

Abstract

The present disclosure provides a connection control method for a radio resource control (RRC), a connection control device for a radio resource control (RRC), a wireless communication system, a computer-readable storage medium, and an electronic device, and relates to the field of communication technology. The connection control method comprises: when a radio resource control (RRC) connection is established between a user device and a 5G base station, a first timer is started; if before the first timer expires, it is detected that a signaling resource bearer related to network access is not established between the user device and the 5G core network, then the RRC connection between the user device and the 5G base station is released. The present disclosure can reduce the failure rate of voice calls and save wireless resources.

Description

Background Art

[0002] With the rapid development of the 5G industry, operators are currently carrying out large-scale 5G standalone (SA) network deployment. In 5G standalone (SA), the user equipment (UE) of the SA network can be connected to the 5G base station to download data resources at a high rate. However, when making a voice call, the evolved packet system (EPS) of the SA network needs to fall back to the voice over long-term evolution (VoLTE). Specifically, first, the UE of the SA network falls back to VoLTE for voice calls, and then, after the voice call ends, the UE of the SA network is switched from the 4G base station connection to the 5G base station through rapid fallback, so as to carry out other data resource download services, etc.

[0003] When the UE switches from a 4G base station to a 5G base station, the UE reports to the 5G core network that there is no uplink data and no remote access related signaling, and starts the T3540 timer so that the UE automatically releases the connection after the timer expires. However, the 5G core network does not send the command to release the Radio Resource Control (RRC) connection to the 5G base station, resulting in a different connection status between the UE and the 5G base station, which in turn causes the voice call to fail when the 5G base station calls the UE again.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The purpose of the present disclosure is to provide a connection control method for a wireless resource control (RRC), a connection control device for a wireless resource control (RRC), a wireless communication system, a computer-readable storage medium and an electronic device, thereby at least to a certain extent overcoming the problems of high voice call failure rate and large waste of wireless resources caused by the limitations and defects of related technologies.

[0006] According to the first aspect of the present disclosure, a connection control method for a wireless resource control (RRC) is provided, comprising: when a wireless resource control (RRC) connection is established between a user equipment and a 5G base station, starting a first timer; if before the first timer expires, it is monitored that no signaling resource bearer related to network access is established between the user equipment and the 5G core network, then releasing the RRC connection between the user equipment and the 5G base station.

[0007] Optionally, the connection control method of wireless resource control RRC also includes: when the data resource bearer is successfully established between the user equipment and the 5G base station, starting a third timer; if it is monitored that there is no data resource transmission between the user equipment and the 5G base station before the third timer expires, releasing the RRC connection between the user equipment and the 5G base station.

[0008] According to the second aspect of the present disclosure, another connection control method of wireless resource control (RRC) is provided, including: when establishing a wireless resource control (RRC) connection between a user equipment and a 5G base station, monitoring that the user equipment and the 5G base station establish a signaling resource bearer, then receiving an RRC connection switching request sent by a 4G base station; and establishing an RRC connection with the user equipment in response to the RRC connection switching request.

[0009] According to the third aspect of the present disclosure, a connection control device for a wireless resource control (RRC) is provided, comprising: a timing start module, for starting a first timer when a wireless resource control (RRC) connection is established between a user equipment and a 5G base station; and a signaling monitoring module, for releasing the RRC connection between the user equipment and the 5G base station if it is detected before the first timer expires that a signaling resource bearer related to network access is not established between the user equipment and the 5G core network.

[0010] According to the fourth aspect of the present disclosure, another connection control device of wireless resource control RRC is provided, including: a request receiving module, which is used to establish a wireless resource control RRC connection between a user equipment and a 5G base station, and when it is monitored that the user equipment and the 5G base station establish a signaling resource bearer, receive an RRC connection switching request sent by a 4G base station; a connection establishing module, which is used to respond to the RRC connection switching request and establish an RRC connection with the user equipment.

[0011] According to a fifth aspect of the present disclosure, a wireless communication system is provided, including: a 5G base station, configured to start a first timer when a wireless resource control (RRC) connection is established between a user equipment and the 5G base station; if before the first timer expires, it is monitored that no signaling resource bearer related to network access is established between the user equipment and the 5G core network, then the RRC connection between the user equipment and the 5G base station is released; the user equipment is configured to establish a data resource bearer and an RRC connection with the 5G base station; and the 5G core network is configured to establish a signaling resource bearer related to network access with the user equipment.

[0012] Optionally, if before the expiration of the first timer, it is monitored that a signaling resource bearer related to network access is established between the user equipment and the 5G core network, the 5G base station can be configured to execute: when a signaling resource bearer related to network access is established between the user equipment and the 5G core network, a second timer is started, and before the expiration of the second timer, whether the user equipment and the 5G base station re-establish the data resource bearer is monitored, a monitoring result is obtained, and based on the monitoring result, the RRC connection between the user equipment and the 5G base station is controlled.

[0013] Optionally, when the data resource bearer is successfully established between the user equipment and the 5G base station, the 5G base station can be configured to execute: starting a third timer, and if it is monitored that there is no data resource transmission between the user equipment and the 5G base station before the third timer expires, releasing the RRC connection between the user equipment and the 5G base station.

[0014] Optionally, the 5G core network also includes: an access and mobility control function node AMF, which can be configured to execute: receiving an RRC connection release request, and sending an RRC connection release instruction to a 5G base station.

[0015] Optionally, the wireless communication system also includes: a 4G base station, which can be configured to execute: sending an RRC connection switching request to the 5G base station so that the 5G base station establishes an RRC connection with the user equipment.

[0016] Optionally, when the signaling resource carrying related to network access between the user equipment and the 5G core network ends, the user equipment is used to start a fourth timer so that the user equipment controls the RRC connection between the user equipment and the 5G base station.

[0017] According to a sixth aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the connection control method of the radio resource control RRC as described above is implemented.

[0018] According to the seventh aspect of the present disclosure, an electronic device is provided, comprising: one or more processors; a storage device for storing one or more programs, which, when the one or more programs are executed by the one or more processors, enables the one or more processors to implement the connection control method of the wireless resource control RRC as described above.

[0019] The exemplary embodiments of the present disclosure have the following beneficial effects:

[0020] In the technical solutions provided in some embodiments of the present disclosure, first, when a radio resource control RRC connection is established between a user device and a 5G base station, a first timer is started; then, if it is detected that a signaling resource bearer related to network access is not established between the user device and the 5G core network before the first timer expires, the RRC connection between the user device and the 5G base station is released. On the one hand, the present disclosure obtains a monitoring result that a signaling resource bearer is not established between the user device and the 5G core network before the first timer expires, and based on the monitoring result, controls the release of the RRC connection between the user device and the 5G base station, so that the RRC connection state between the 5G base station and the user device UE remains consistent, avoiding the problem of voice call failure due to inconsistent connection state, reducing the voice call failure rate, and at the same time, avoiding the 5G base station from sending multiple session establishment requests with the user device to waste the system's wireless resources, saving wireless resources. On the other hand, based on the monitoring result that signaling resource bearer is not established between the user equipment and the 5G core network, the present invention releases the RRC connection between the 5G base station and the user equipment, avoids the 5G base station receiving erroneous connection information and processing erroneous services, improves the accuracy of the 5G base station controlling the RRC connection, uses the saved wireless resources to process demand tasks, and improves the utilization rate of wireless resources.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 A simplified schematic diagram schematically illustrates a wireless communication system according to an exemplary embodiment of the present disclosure;

[0024] Figure 2 The flowchart schematically shows a connection control method of a radio resource control RRC according to an exemplary embodiment of the present disclosure;

[0025] Figure 3 The flowchart schematically shows a connection control method of a radio resource control RRC according to another exemplary embodiment of the present disclosure;

[0026] Figure 4 The overall flow chart of the connection control method of the radio resource control RRC according to the exemplary embodiment of the present disclosure is schematically shown;

[0027] Figure 5 An interaction diagram schematically illustrates a connection control method of a radio resource control RRC according to an exemplary embodiment of the present disclosure;

[0028] Figure 6 A flowchart of a connection control method of a radio resource control RRC according to another exemplary embodiment of the present disclosure is schematically shown;

[0029] Figure 7 A block diagram schematically shows a connection control device of a radio resource control RRC according to an exemplary embodiment of the present disclosure;

[0030] Figure 8 A block diagram schematically shows a connection control device of a radio resource control RRC according to another exemplary embodiment of the present disclosure;

[0031] Fig. 9 A block diagram of an electronic device according to an exemplary embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present disclosure will be more comprehensive and complete, and the concepts of the example embodiments are fully conveyed to those skilled in the art. The described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known technical solutions are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0033] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0034] It should be noted that, in the present disclosure, the terms "include" and "comprising" are used to express an open-ended meaning of inclusion, and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first", "second", "third", and "fourth" used in the present disclosure are only for the purpose of distinction and should not be used as limitations of the present disclosure.

[0035] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the steps. For example, some steps may be decomposed, while some steps may be combined or partially combined, so the actual execution order may change according to the actual situation.

[0036] Currently, in the 5G SA network, user equipment can connect to the 5G base station through the RRC connection to download data resources from the 5G base station. However, when making a voice call, the EPS of the SA network first needs to fall back to the long-term evolution voice bearer, and then transmit the voice data. Subsequently, after the voice call ends, it is redirected from the 4G network to the 5G network through a fast fallback, that is, the user equipment is switched from the 4G base station to the 5G base station for other data resource transmission.

[0037] In the process of redirecting from the 4G network to the 5G network, the user equipment initiates a mobility registration to the 5G core network, reporting Follow-on request = 0, Uplink data status = 0. At the same time, the user equipment starts the T3540 timer and automatically releases the connection after the T3540 timer expires. However, the 5G core network will not reply to the 5G base station with the RRC connection release instruction. Based on the above solution, when the 5G base station calls the user equipment again, it will receive error information such as the user equipment is lost, resulting in paging failure.

[0038] To address this problem, the present disclosure proposes a wireless communication system.

[0039] like Figure 1 As shown, the wireless communication system of the present disclosure is included in the 5G SA network. The wireless communication system includes a 5G core network 102, a 5G base station 104, a user equipment 106 and a 4G base station 108. Figure 1 The dotted line of the bidirectional arrow represents the transmission process of the control signaling, and the solid line of the bidirectional arrow represents the transmission process of the user plane data. Figure 1 Only the 5G base station 104, the user equipment 106 and the 4G base station 108 are shown schematically. It should be noted that the number of 5G base stations 104, the user equipment 106 and the 4G base stations 108 is not limited and can be deployed based on actual scenarios.

[0040] In the wireless communication system of the present disclosure, the user equipment 106 can initiate registration with the 5G core network 102. Through the registration process, a signaling connection (e.g., N1 connection in 5G) between the 5G core network 102 and the user equipment 106, a communication connection (e.g., N2 connection in 5G) between the 5G core network 102 and the 5G base station 104, and a connection (e.g., RRC connection in 5G) between the user equipment 106 and the 5G base station 104 are established, and the user equipment 106 enters a connected state. In other words, the 5G core network 102 can establish a signaling resource bearer related to network access with the user equipment 106. The user equipment 106 can establish a data resource bearer with the 5G base station, and the user equipment 106 can establish an RRC connection with the 5G base station.

[0041] The 5G core network 102 includes an access and mobility management function node (core Access and Mobility Management Function, AMF). Figure 1 It is not given in the specification. The 5G base station 104 can establish a signaling resource bearer (SRB) with the AMF of the 5G core network 102, and send signaling information to the AMF of the 5G core network 102. The 5G base station 104 can send an RRC connection request related to the user equipment 106 to the AMF of the 5G core network 102, and can also receive an RRC connection control instruction sent by the AMF of the 5G core network 102. In other words, the AMF of the 5G core network 102 can be used to receive an RRC connection release request and can be used to send an RRC connection release instruction to the 5G base station.

[0042] The RRC connection control instruction may include an RRC connection release instruction and an RRC connection establishment instruction.

[0043] In an exemplary embodiment of the present disclosure, the 5G core network 102 may receive signaling related to remote access network access sent by the user equipment 106. The signaling related to remote access network access may be, for example, a network access server (NAS) signaling.

[0044] In the present disclosure, the user device 106 may include but is not limited to a mobile phone, a tablet or a device with a voice call function, etc. The user device 106 may include but is not limited to a T3540 timer. Figure 1 The T3540 timer can be set to 10 seconds.

[0045] When the user equipment 106 sends no uplink data and no signaling information to the 5G core network 102, the T3540 timer starts timing. When the timing ends, the user equipment releases the RRC connection between the user equipment 106 and the 5G base station 104.

[0046] The 5G base station 104 may transmit a data resource bearer (DRB) with the user equipment 106 via an RRC connection. In an exemplary embodiment of the present disclosure, the data resource bearer (DRB) may include voice communication data. The 5G base station 104 may include various forms of base stations, such as macro base stations, micro base stations, relay stations, access points, etc., which are not specifically limited in the embodiments of the present application. The 5G base station 104 may include, but is not limited to, at least one timer. Figure 1 The 5G base station 104 may control the RRC connection between the user equipment 106 and the 5G base station 104 based on a timer.

[0047] The 4G base station 108 can establish a radio resource control RRC connection between the 5G base station 104 and the user equipment 106, and when DRB is not established, send a connection switching request to the 5G base station 104 to switch the RRC connection to the 5G base station 104.

[0048] It should be noted that in the 5G SA network, the 5G base station 104 can directly send signaling information to the 5G core network 102, and the user equipment 106 can directly send signaling information to the 5G core network 102. There is no need to send the signaling information to the 4G base station 108 and then forward it to the 5G core network 102 by the 4G base station 108.

[0049] In an exemplary embodiment of the present disclosure, the connection control method of the wireless resource control RRC described below can generally be implemented by a 5G base station, that is, the various steps of the connection control method of the wireless resource control RRC can be performed by the 5G base station. In this case, the connection control device of the wireless resource control RRC can be configured in the 5G base station.

[0050] Below, each step of the connection control method of the radio resource control RRC in this example implementation will be described in more detail with reference to the accompanying drawings and embodiments.

[0051] Figure 2 The flowchart of the connection control method of the radio resource control RRC of the exemplary embodiment of the present disclosure is schematically shown. In the following example description, a 5G base station is used as the execution subject for example description. Figure 2 The connection control method of the radio resource control RRC may specifically include the following steps:

[0052] S201. When a radio resource control RRC connection is established between the user equipment and the 5G base station, start the first timer.

[0053] When a radio resource control RRC connection is established between the user equipment and the 5G base station, and before the 5G base station starts the first timer, it can monitor whether the user equipment and the 5G base station have established data bearer resources. The 5G base station can determine two results, the first of which may include that no data resource bearer is established between the user equipment and the 5G base station. The second may include that a data resource bearer is established between the user equipment and the 5G base station. Among them, Uplink data status = 0 may indicate that no data resource bearer is established between the user equipment and the 5G base station. Uplink data status = 1 may indicate that a data resource bearer is established between the user equipment and the 5G base station.

[0054] When no data resource bearer is established between the user equipment and the 5G base station, determine the time when the data bearer between the user equipment and the 5G base station ends.

[0055] According to another embodiment of the present disclosure, when a data resource bearer is established between a user equipment and a 5G base station, the 5G base station may first determine the moment when the data resource bearer between the user equipment and the 5G base station is successfully established, and start a third timer when the data resource bearer between the user equipment and the 5G base station is successfully established. If it is detected that there is no data resource transmission between the user equipment and the 5G base station before the third timer expires, the RRC connection between the user equipment and the 5G base station is released.

[0056] In an exemplary embodiment of the present disclosure, data resource transmission may be data resources uploaded or downloaded by a user equipment from a 5G base station.

[0057] After starting the third timer, the 5G base station monitors whether there is data resource transmission between the user equipment and the 5G base station. The 5G base station can determine two results. The first may include the 5G base station monitoring the existence of data resource transmission between the user equipment and the 5G base station, and the second may include the 5G base station monitoring the existence of data resource transmission between the user equipment and the 5G base station.

[0058] If the 5G base station detects that data resources are transmitted between the user equipment and the 5G base station, the RRC connection between the user equipment and the 5G base station can be maintained.

[0059] It should be noted that the 5G base station may include a third timer, and the third timer of the 5G base station starts timing from the moment when the data resource bearer between the user equipment and the 5G base station is successfully established. In other words, the third timer can be used to start timing when the data resource bearer between the user equipment and the 5G base station is successfully established.

[0060] The third timer may be a data inactivity timer.

[0061] S203. If it is monitored before the first timer expires that no signaling resource bearer related to network access is established between the user equipment and the 5G core network, the RRC connection between the user equipment and the 5G base station is released.

[0062] In an exemplary embodiment of the present disclosure, the timing time of the first timer (i.e., the time interval from startup to expiration) can be less than or equal to the timing time of the T3540 timer of the user equipment, that is, the timing time of the first timer can be set to a value less than or equal to 10 seconds.

[0063] The signaling resources of the Signal Radio Bearer (SRB) may include signaling related to network access, for example, signaling related to remote access network access, for example, network access server (NAS) signaling.

[0064] After starting the first timer, the 5G base station can monitor whether a signaling resource bearer related to network access is established between the user equipment and the 5G core network. The 5G base station can determine two results, the first of which may include the establishment of a signaling resource bearer related to network access between the user equipment and the 5G core network, and the second of which may include the failure to establish a signaling resource bearer related to network access between the user equipment and the 5G core network. Among them, Follow-on request = 1 may indicate that a signaling resource bearer related to network access is established between the user equipment and the 5G core network, and Follow-on request = 0 may indicate that a signaling resource bearer related to network access is not established between the user equipment and the 5G core network.

[0065] In an exemplary embodiment of the present disclosure, if the 5G base station detects that no signaling resource bearer related to network access is established between the user equipment and the 5G core network before the first timer expires, the RRC connection between the user equipment and the 5G base station is released.

[0066] It should be noted that the 5G base station may include a first timer, and when a radio resource control RRC connection is established between the user equipment and the 5G base station, the first timer of the 5G base station starts timing. In other words, the first timer can be used to start timing when a radio resource control RRC connection is established between the user equipment and the 5G base station.

[0067] According to another embodiment of the present disclosure, if it is monitored that a signaling resource bearer related to network access is established between the user equipment and the 5G core network before the first timer expires, then when the signaling resource bearer related to network access is established between the user equipment and the 5G core network, the second timer is started; before the second timer expires, it is monitored whether the user equipment and the 5G base station re-establish the data resource bearer to obtain a monitoring result; the 5G base station can control the RRC connection between the user equipment and the 5G base station based on the monitoring result.

[0068] In an exemplary embodiment of the present disclosure, the timing time of the second timer can be greater than the timing time of the first timer, and the timing time of the second timer can be greater than the timing time of the T3540 timer of the user equipment, that is, the timing time of the second timer can be set to a value greater than 10 seconds.

[0069] The monitoring results may include that the user equipment and the 5G base station re-establish data resource bearing, or the user equipment and the 5G base station do not re-establish data resource bearing.

[0070] According to another embodiment of the present disclosure, before the second timer expires, the 5G base station detects that the user equipment and the 5G base station have not re-established the data resource bearer, then receives an RRC connection switching request sent by the 4G base station; responds to the RRC connection switching request, and establishes an RRC connection with the user equipment.

[0071] Among them, the RRC connection switching request may include information of a user equipment that is connected to a 4G base station and needs to be switched to a 5G base station.

[0072] It should be noted that when a signaling resource bearer is established between the 5G base station and the user equipment, and a data resource bearer is not established, the 4G base station can send an RRC connection switching request to the 5G base station. When a signaling resource bearer is established between the 5G base station and the user equipment, and a data resource bearer is established, the 4G base station can send an RRC connection switching request to the 5G base station.

[0073] The present disclosure establishes a signaling resource bearer between the 5G base station and the user equipment, and when the data resource bearer is not established, the RRC connection can be switched from the 4G base station to the 5G base station, thereby avoiding the problem of failure of the voice call due to the inability to perform connection switching due to the lack of data resource bearer. The present disclosure improves the success rate of voice calls.

[0074] The 5G base station may include a second timer, and the second timer of the 5G base station restarts the timing from the time when the signaling resource bearer related to network access is established between the user equipment and the 5G core network. That is to say, if the second timer is used to monitor the establishment of a signaling resource bearer related to network access between the user equipment and the 5G core network before the first timer expires, the timing will start from the time when the signaling resource bearer related to network access is established between the user equipment and the 5G core network.

[0075] After obtaining the monitoring results, the 5G base station can control the RRC connection between the user equipment and the 5G base station based on the monitoring results.

[0076] In an exemplary embodiment of the present disclosure, the controlling of the RRC connection may include releasing the RRC connection, or may include maintaining the RRC connection.

[0077] Before the second timer expires, the 5G base station can monitor whether the user equipment and the 5G base station have re-established the data resource bearer to obtain a monitoring result. In another embodiment of the present disclosure, if the monitoring result includes that the user equipment and the 5G base station have re-established the data resource bearer, the RRC connection between the user equipment and the 5G base station is maintained; if the monitoring result includes that the user equipment and the 5G base station have not re-established the data resource bearer, the RRC connection between the user equipment and the 5G base station is released.

[0078] According to another embodiment of the present disclosure, the 5G core network may include an access and mobility control function node AMF. The 5G base station may first determine an RRC connection release request for the user equipment; then, the RRC connection release request may be sent to the AMF of the 5G core network, so that the AMF of the 5G core network sends an RRC connection release instruction to the 5G base station; subsequently, the RRC connection with the user equipment may be released in response to the RRC connection release instruction.

[0079] Among them, the AMF of the 5G core network is connected to the 5G base station through the 5G N2 connection.

[0080] The present disclosure obtains monitoring results through two timing tasks, and controls the RRC connection between the user equipment and the 5G base station based on the monitoring results, so that the RRC connection status between the 5G base station and the user equipment UE is kept consistent, avoiding the problem of failure of the 5G base station to page the user equipment due to inconsistent RRC connection status, reducing the voice call failure rate, and at the same time, avoiding the 5G base station from sending session establishment-related requests with the user equipment to the 5G core network or the user equipment multiple times, saving wireless resources.

[0081] Figure 3 The flowchart schematically shows a connection control method of a radio resource control RRC according to an exemplary embodiment of the present disclosure.

[0082] In step S302, when a radio resource control RRC connection is established between the user equipment and the 5G base station, the 5G base station may start a first timer; in step S304, before the first timer expires, the 5G base station may monitor whether a signaling resource bearer related to network access is established between the user equipment and the 5G core network. If it is detected that a signaling resource bearer related to network access is not established between the user equipment and the 5G core network, step S306 is executed, that is, the 5G base station may release the RRC connection between the user equipment and the 5G base station. If it is detected that a signaling resource bearer related to network access is established between the user equipment and the 5G core network, step S307 is executed. Step S308 is performed; in step S308, the 5G base station can start the second timer from the time when the signaling resource bearer related to the network access is established between the user equipment and the 5G core network; in step S310, before the second timer expires, the 5G base station can monitor whether the user equipment and the 5G base station have re-established the data resource bearer, if it is monitored that the user equipment and the 5G base station have re-established the data resource bearer, step S312 is performed, and if it is monitored that the user equipment and the 5G base station have not re-established the data resource bearer, step S306 is performed; in step S312, the 5G base station can maintain the RRC connection between the user equipment and the 5G base station.

[0083] Figure 4 The overall flow chart of a connection control method of a radio resource control (RRC) according to an exemplary embodiment of the present disclosure is schematically shown.

[0084] In step S401, when a radio resource control (RRC) connection is established between the user equipment and the 5G base station, the 5G base station monitors whether a data resource bearer is established between the user equipment and the 5G base station. If it is detected that no data resource bearer is established between the user equipment and the 5G base station, step S302 is executed. In step S302, the 5G base station may start a first timer. In step S304, before the first timer expires, the 5G base station may monitor whether a signaling resource bearer related to network access is established between the user equipment and the 5G core network. If it is detected that no signaling resource bearer related to network access is established between the user equipment and the 5G core network, step S306 is executed, that is, the 5G base station may release the RRC connection between the user equipment and the 5G base station. If it is detected that no signaling resource bearer related to network access is established between the user equipment and the 5G core network, step S307 is executed. If a signaling resource bearer related to network access is established between the user equipment and the 5G core network, step S308 is executed; in step S308, from the time when a signaling resource bearer related to network access is established between the user equipment and the 5G core network, the 5G base station can start a second timer; in step S310, before the second timer expires, the 5G base station can monitor whether the user equipment and the 5G base station have re-established a data resource bearer, if it is monitored that the user equipment and the 5G base station have re-established a data resource bearer, step S312 is executed, if it is monitored that the user equipment and the 5G base station have not re-established a data resource bearer, step S306 is executed, that is, the 5G base station can release the RRC connection between the user equipment and the 5G base station; in step S312, the 5G base station can maintain the RRC connection between the user equipment and the 5G base station.

[0085] If it is monitored that the user equipment and the 5G base station establish a data resource bearer, step S403 is executed; in step S403, when the data resource bearer between the user equipment and the 5G base station is successfully established, the 5G base station can start the third timer; in step S405, before the third timer expires, the 5G base station can monitor whether there is data resource transmission between the user equipment and the 5G base station. If it is monitored that there is no data resource transmission between the user equipment and the 5G base station, step S306 is executed, that is, the 5G base station can release the RRC connection between the user equipment and the 5G base station. If it is monitored that there is data resource transmission between the user equipment and the 5G base station, step S312 is executed, that is, the 5G base station can maintain the RRC connection between the user equipment and the 5G base station.

[0086] In the present disclosure, the 5G base station controls the RRC connection between the 5G base station and the user equipment through the monitoring results obtained after two timings, so as to avoid the 5G base station receiving wrong connection information and processing wrong services, improve the accuracy of the 5G base station controlling the RRC connection, use the saved wireless resources to process the required tasks, and improve the utilization rate of wireless resources.

[0087] Figure 5The interactive flow chart of the connection control method of the radio resource control RRC according to the exemplary embodiment of the present disclosure is schematically shown.

[0088] In step S502, when a radio resource control RRC connection is established between the user equipment and the 5G base station, the 5G base station may start a first timer; in step S504, the user equipment may send signaling related to network access; in step S506, before the first timer expires, the 5G base station may detect that the user equipment sends signaling related to network access to the 5G core network, that is, a signaling resource bearer related to network access is established between the user equipment and the 5G core network; in step S508, a signaling resource bearer related to network access is established between the user equipment and the 5G core network. The 5G base station may start a second timer from the start of the bearer; in step S510, before the second timer expires, the 5G base station may monitor that the user equipment and the 5G base station have not re-established the data resource bearer; in step S512, the 5G base station may determine an RRC connection release request for the user equipment; in step S514, the 5G base station may send an RRC connection release request to the 5G core network; in step S516, the 5G core network may send an RRC connection release instruction to the 5G base station; in step S518, the 5G base station may release the RRC connection with the user equipment.

[0089] It should be noted that before the first timer expires, the 5G base station can detect that the user equipment has not sent signaling related to network access to the 5G core network, that is, no signaling resource bearer related to network access is established between the user equipment and the 5G core network. When the signaling resource bearer related to network access between the user equipment and the 5G core network ends, the user equipment can start the fourth timer so that the user equipment can control the RRC connection between the user equipment and the 5G base station.

[0090] Specifically, if the user equipment detects that the data resource bearer has not been reestablished between the user equipment and the 5G base station before the fourth timer expires, the user equipment may release the RRC connection between the user equipment and the 5G base station, otherwise, the RRC connection between the user equipment and the 5G base station is maintained. The timing time of the fourth timer is greater than or equal to the timing time of the first timer.

[0091] The user equipment may include a fourth timer, and when the signaling resource bearer related to network access between the user equipment and the 5G core network ends, the fourth timer of the user equipment starts timing. The fourth timer may be a T3540 timer, and the timing time of the fourth timer may be set to 10 seconds.

[0092] The 5G base station of the present invention releases the RRC connection between the user equipment and the 5G base station when it detects that the signaling resource bearer related to network access has not been established between the user equipment and the 5G core network before the first timer expires. When the signaling resource bearer related to network access between the user equipment and the 5G core network ends, the user equipment starts timing and starts the fourth timer; if before the fourth timer expires, the user equipment detects that the data resource bearer has not been re-established between the user equipment and the 5G base station, the user equipment can release the RRC connection between the user equipment and the 5G base station. The present invention makes the RRC connection status of the user equipment and the 5G base station the same, avoiding the problem of voice call failure due to inconsistent connection status, reducing the voice call failure rate, and at the same time, avoiding the 5G base station from sending multiple session establishment requests with the user equipment to waste the system's wireless resources, saving wireless resources.

[0093] Furthermore, in an exemplary embodiment of the present disclosure, another connection control method of a radio resource control (RRC) is provided.

[0094] refer to Figure 6 Another method for controlling a connection of a radio resource control RRC may include the following steps:

[0095] S601. When a radio resource control RRC connection is established between the user equipment and the 5G base station, it is monitored that the user equipment and the 5G base station establish a signaling resource bearer, and then an RRC connection switching request sent by the 4G base station is received;

[0096] S603. Respond to the RRC connection switching request and establish an RRC connection with the user equipment.

[0097] Among them, the RRC connection switching request may include information of a user equipment that is connected to a 4G base station and needs to be switched to a 5G base station.

[0098] It should be noted that when a signaling resource bearer is established between the 5G base station and the user equipment, and a data resource bearer is not established, the 4G base station can send an RRC connection switching request to the 5G base station. When a signaling resource bearer is established between the 5G base station and the user equipment, and a data resource bearer is established, the 4G base station can send an RRC connection switching request to the 5G base station.

[0099] The present disclosure establishes a signaling resource bearer between the 5G base station and the user equipment, and when the data resource bearer is not established, the RRC connection can be switched from the 4G base station to the 5G base station, thereby avoiding the problem of failure of the voice call due to the inability to perform connection switching due to the lack of data resource bearer. The present disclosure improves the success rate of voice calls.

[0100] It should be noted that although the steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0101] Furthermore, in an exemplary embodiment of the present disclosure, a connection control device of a radio resource control RRC is also provided.

[0102] Figure 7 The block diagram schematically shows a connection control device of a radio resource control RRC according to an exemplary embodiment of the present disclosure. Figure 7 According to an exemplary embodiment of the present disclosure, a connection control device 700 of a radio resource control RRC may include a timing start module 701 and a signaling monitoring module 703 .

[0103] Specifically, the timing start module 701 can be used to start the first timer when a wireless resource control (RRC) connection is established between the user equipment and the 5G base station; the signaling monitoring module 703 can be used to release the RRC connection between the user equipment and the 5G base station if it is detected before the first timer expires that a signaling resource bearer related to network access is not established between the user equipment and the 5G core network.

[0104] According to an exemplary embodiment of the present disclosure, the signaling monitoring module 703 can also be used to start a second timer when a signaling resource bearer related to network access is established between the user equipment and the 5G core network if it is monitored before the first timer expires that a signaling resource bearer related to network access is established between the user equipment and the 5G core network; before the second timer expires, monitor whether the user equipment and the 5G base station re-establish a data resource bearer to obtain a monitoring result; and based on the monitoring result, control the RRC connection between the user equipment and the 5G base station.

[0105] According to an exemplary embodiment of the present disclosure, the process in which the signaling monitoring module 703 controls the RRC connection between the user equipment and the 5G base station based on the monitoring result can be configured to execute: if the monitoring result includes that the user equipment and the 5G base station re-establish data resource bearer, then the RRC connection between the user equipment and the 5G base station is maintained; if the monitoring result includes that the user equipment and the 5G base station do not re-establish data resource bearer, then the RRC connection between the user equipment and the 5G base station is released.

[0106] According to an exemplary embodiment of the present disclosure, the 5G core network includes an access and mobility control function node AMF. In this case, the process of releasing the RRC connection between the user equipment and the 5G base station by the signaling monitoring module 703 can be configured to execute: determining an RRC connection release request for the user equipment; sending the RRC connection release request to the AMF of the 5G core network so that the AMF of the 5G core network sends an RRC connection release instruction to the 5G base station; and releasing the RRC connection with the user equipment in response to the RRC connection release instruction.

[0107] According to an exemplary embodiment of the present disclosure, the timing start module 701 can also be configured to start a third timer when the data resource bearer is successfully established between the user equipment and the 5G base station; if it is monitored that there is no data resource transmission between the user equipment and the 5G base station before the third timer expires, the RRC connection between the user equipment and the 5G base station is released.

[0108] Furthermore, in an exemplary embodiment of the present disclosure, another connection control device of a radio resource control (RRC) is provided.

[0109] Figure 8 The block diagram schematically shows a connection control device of a radio resource control RRC according to an exemplary embodiment of the present disclosure. Figure 8 According to an exemplary embodiment of the present disclosure, a connection control device 800 of a radio resource control RRC may include a request receiving module 801 and a connection establishing module 803 .

[0110] Specifically, the request receiving module 801 can be used to monitor the establishment of a signaling resource bearer between the user equipment and the 5G base station when the data resource bearer between the user equipment and the 5G base station ends, and then receive the RRC connection switching request sent by the 4G base station; the connection establishment module 803 can be used to respond to the RRC connection switching request and establish an RRC connection with the user equipment.

[0111] The specific details of each module / unit in the above device have been described in detail in the embodiment of the method part, so they will not be repeated here.

[0112] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the above method of the present specification is stored. In some possible implementations, various aspects of the present invention may also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary embodiments of the present invention described in the above "Exemplary Method" section of the present specification.

[0113] In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.

[0114] It will be appreciated by those skilled in the art that various aspects of the present invention may be implemented as a system, method or program product. Therefore, various aspects of the present invention may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as a "circuit", "module" or "system".

[0115] Refer to the following Fig. 9 An electronic device 900 according to this embodiment of the present invention will be described. Fig. 9 The electronic device 900 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0116] like Fig. 9 As shown, the electronic device 900 is in the form of a general computing device. The components of the electronic device 900 may include, but are not limited to: the at least one processing unit 910, the at least one storage unit 920, a bus 930 connecting different system components (including the storage unit 920 and the processing unit 910), and a display unit 940.

[0117] The storage unit stores a program code, and the program code can be executed by the processing unit 910, so that the processing unit 910 performs the steps of various exemplary embodiments of the present invention described in the above "Exemplary Method" section of this specification. For example, the processing unit 910 can perform the above-mentioned connection control method of the radio resource control RRC.

[0118] The storage unit 920 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 9201 and / or a cache storage unit 9202 , and may further include a read-only storage unit (ROM) 9203 .

[0119] The storage unit 920 may also include a program / utility 9204 having a set (at least one) of program modules 9205, such program modules 9205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0120] Bus 930 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0121] The electronic device 900 may also communicate with one or more external devices 1000 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to communicate with the electronic device 900, and / or communicate with any device that enables the electronic device 900 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 950. Furthermore, the electronic device 900 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 960. As shown, the network adapter 960 communicates with other modules of the electronic device 900 via a bus 930. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 900, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0122] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0123] In addition, the above-mentioned figures are only schematic illustrations of the processes included in the method according to an exemplary embodiment of the present invention, and are not intended to be limiting. It is easy to understand that the processes shown in the above-mentioned figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0124] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0125] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0126] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A connection control method for radio resource control RRC, characterized in that: Configured in a 5G base station, the connection control method of the radio resource control RRC includes: When a radio resource control RRC connection is established between the user equipment and the 5G base station, starting a first timer; If, before the first timer expires, it is monitored that no signaling resource bearer related to network access is established between the user equipment and the 5G core network, the RRC connection between the user equipment and the 5G base station is released, including: determining an RRC connection release request for the user equipment; sending the RRC connection release request to an access and mobility control function node AMF of the 5G core network, so that the AMF of the 5G core network sends an RRC connection release instruction to the 5G base station; and responding to the RRC connection release instruction to release the RRC connection with the user equipment; If it is monitored before the first timer expires that a signaling resource bearer related to network access has been established between the user equipment and the 5G core network, then when the signaling resource bearer related to network access is established between the user equipment and the 5G core network, the second timer is started; before the second timer expires, whether the user equipment and the 5G base station re-establish a data resource bearer is monitored to obtain a monitoring result; based on the monitoring result, the RRC connection between the user equipment and the 5G base station is controlled.

2. The connection control method of radio resource control RRC according to claim 1, characterized in that: Based on the monitoring result, controlling the RRC connection between the user equipment and the 5G base station includes: If the monitoring result includes that the user equipment and the 5G base station re-establish a data resource bearer, maintaining the RRC connection between the user equipment and the 5G base station; If the monitoring result includes that the user equipment and the 5G base station have not re-established data resource bearing, the RRC connection between the user equipment and the 5G base station is released.

3. The connection control method of radio resource control RRC according to claim 2, characterized in that: The connection control method of the radio resource control RRC also includes: Before the second timer expires, if it is monitored that the user equipment and the 5G base station have not re-established the data resource bearer, an RRC connection switching request sent by the 4G base station is received; in response to the RRC connection switching request, an RRC connection with the user equipment is established.

4. A connection control device for a radio resource control RRC, characterized in that: Configured in a 5G base station, the connection control device of the radio resource control RRC includes: A timing start module, configured to start a first timer when a radio resource control RRC connection is established between the user equipment and the 5G base station; A signaling monitoring module, configured to release the RRC connection between the user equipment and the 5G base station if it is detected that no signaling resource bearer related to network access is established between the user equipment and the 5G core network before the first timer expires, including: determining an RRC connection release request for the user equipment; sending the RRC connection release request to an access and mobility control function node AMF of the 5G core network, so that the AMF of the 5G core network sends an RRC connection release instruction to the 5G base station; and releasing the RRC connection with the user equipment in response to the RRC connection release instruction; and If it is monitored before the first timer expires that a signaling resource bearer related to network access has been established between the user equipment and the 5G core network, then when the signaling resource bearer related to network access is established between the user equipment and the 5G core network, the second timer is started; before the second timer expires, whether the user equipment and the 5G base station re-establish a data resource bearer is monitored to obtain a monitoring result; based on the monitoring result, the RRC connection between the user equipment and the 5G base station is controlled.

5. The connection control device of the radio resource control RRC according to claim 4, characterized in that: The connection control device of the radio resource control RRC also includes: A request receiving module, configured to receive an RRC connection switching request sent by a 4G base station if it is detected that the user equipment and the 5G base station have not re-established a data resource bearer before the second timer expires; The connection establishment module is used to respond to the RRC connection switching request and establish an RRC connection with the user equipment.

6. A wireless communication system, characterized in that: include: A 5G base station, used to implement the connection control method of the radio resource control RRC according to any one of claims 1 to 3; A user equipment is used to establish a data resource bearer with the 5G base station and establish an RRC connection with the 5G base station; The 5G core network is used to establish signaling resource bearer related to network access with the user equipment.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the connection control method of the radio resource control RRC according to any one of claims 1 to 3 is implemented.

8. An electronic device, characterized in that: include: one or more processors; A storage device, used to store one or more programs, when the one or more programs are executed by the one or more processors, enables the one or more processors to implement the connection control method of the radio resource control RRC as described in any one of claims 1 to 3.

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