RU2782338C1 - Method for processing the network connection, the appropriate device and computer media - Google Patents

Abstract

FIELD: communication technology.

SUBSTANCE: invention relates to the field of communication technologies, in particular to a method for processing a network connection, an appropriate device and a computer data carrier. The result is achieved by the fact that the network connection processing method is applied to user equipment on the UE side and relates to 5G NR and the field of communication with artificial intelligence. The method includes: connecting the UE to both a 4G base station and a 5G base station using LTE-NR dual connection technology; and, when the UE is in the off-screen state and the data transfer rate of the UE is less than or equal to the preset speed, releasing the connection between the UE and the 5G base station.

EFFECT: reducing the power consumption of user equipment and optimizing the use of network resources.

20 cl, 12 dwg

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority based on Chinese Patent Application No. 201910177518.5 entitled "POWER-SAVING METHOD FOR TERMINAL", filed with the National Intellectual Property Administration of China on March 9, 2019, and priority based on China's Patent Application No. 201910588602.6 entitled "NETWORK CONNECTION PROCESSING METHOD, RELATED DEVICE AND COMPUTER MEDIA", filed with the National Intellectual Property Administration of China on June 28, 2019, which are hereby incorporated by reference in their entirety.

The technical field to which the invention belongs

[0002] The present invention relates to the field of communication technologies and, in particular, to a method for processing a network connection, a corresponding apparatus, and a computer storage medium.

State of the art

[0003] The concept of dual connectivity is introduced in the LTE R12 standard. In particular, the user equipment (user equipment, UE) can use the independent physical resources of two base stations at the same time connected mode (connected mode) radio resource control (radio resource control, RRC) for transmission. LTE dual connectivity technology expands the scope of carrier aggregation and can effectively increase network capacity and improve capabilities such as network switching power.

[0004] LTE-NR dual connectivity, as an important application technology of LTE dual connectivity, is also referred to as 4G-5G dual connectivity (EUTRN-NR dual connectivity, EN-DC) and mainly includes 4G E- UTRAN. (also called the LTE access network) and the new 5G random access technology (NR) access network (NR access network for short). Therefore, 5G network deployment can use the existing 4G LTE coverage to avoid waste of network resources.

[0005] In the LTE dual connectivity technology, a UE can be connected to a 4G base station (which may be referred to as an eNB) and a 5G base station (which may be referred to as an En-gNB) at the same time, and obtain a high speed, low delay wireless transmission service based on tight 4G-5G compatibility. Compared to single access network operation mode, for example, for communication using only 4G LTE technology, LTE dual connection technology results in high power consumption of user equipment. In addition, in a scenario having low network usage requirements, the LTE access network can meet the network connection requirements of the user equipment. If LTE-NR dual connectivity technology is still used, waste of network resources inevitably occurs and energy consumption of user equipment increases.

The essence of the invention

[0006] Embodiments of the present invention disclose a network connection processing method, a corresponding device, and a computer storage medium for solving problems such as high device power consumption and waste of network resources in communication using LTE-NR dual connectivity technology in a low network speed scenario in normal technologies.

[0007] According to a first aspect, an embodiment of the present invention provides a method for processing a network connection. The method is applied to a UE side and includes: connecting the UE to both a 4G base station and a 5G base station using LTE-NR dual connection technology; and when the UE is in a low network rate usage scenario, releases the connection between the UE and the 4G base station or the 5G base station. The connection between the UE and the 4G base station is also called the LTE connection, and the connection between the UE and the 5G base station is also called the NR connection. Therefore, it can solve problems such as high device power consumption and waste of network resources in communication while continuing to use LTE-NR dual connection in a low network speed usage scenario in conventional technologies.

[0008] A low network rate use case is a use case in which a UE has low network usage requirements, and can be specifically indicated by a low UE data rate, a small data packet to be transmitted by the UE. , or the like. When the UE detects any one or combination of the following, it can be determined that the UE is in a low network rate usage scenario:

[0009] (1) The UE is in a screen-on state and operates at a low network speed. The low network speed means that the data rate of the UE is low. For example, in particular, this may mean that the UE's transmission rate for uplink data is less than a first preset rate, such as 50 kbps; or may mean that the UE's transmission rate for downlink data is less than a second preset rate, such as 60 kbps; or may mean that the UE's transmission rate for all data, including uplink data and downlink data, is less than a third preset threshold, eg, 100 kbps. In a real application, the UE operates at low network speed in a variety of scenarios, and the following three scenarios are used as examples. For example, in the first scenario, the UE has enabled the application launch function with a low network speed and the application launch function with a high network speed has been disabled. A low network rate application is an application that is deployed in a UE and has low data rate requirements, such as a requirement that the data rate be less than a preset rate. In contrast, a high network speed application is an application that is deployed in a UE and has a high data rate requirement, such as a video application. In the second scenario, the UE exchanges a heartbeat packet with another device to maintain a normal communication connection and the like. In the third scenario, the UE is in a low network speed operation scenario such as a game scenario or a navigation scenario. The game scenario makes high demands on the CPU load. The navigation scenario has high requirements for the heat dissipation performance of the device, but low requirements for network speed (i.e. data transfer rate).

[0010] (2) The UE is in the screen-on state, and the data packet size to be transmitted by the UE is less than or equal to the first preset threshold.

[0011] (3) The mobile data function of the UE is disabled.

[0012] (4) The overall temperature of the UE is greater than or equal to a preset temperature threshold. In a real application, the overall temperature of the UE can usually be replaced by the temperatures of some of the main devices in the UE, such as CPU temperature, SOC temperature, and battery temperature.

[0013] (5) The UE is in a screen off state and operates at a low network speed. In this embodiment, the UE is in a screen-off state and operates at a low network speed also in a variety of scenarios. For example, the UE still supports running an application in the background in a screen off state. In this case, in order to meet low network usage requirements, the low network speed application launch function can be enabled and the high network speed application launch function can be disabled. In another example, the UE does not transmit or receive data in the screen-off state, or only transmits a data packet, such as a test heartbeat packet or a monitoring data packet, to keep the application awake. This type of data packet is sent periodically, and the transmission rate and data packet size are usually small. In this case, the UE can be considered to be operating at a low network speed.

[0014] (6) The UE is in a screen-off state and the data packet size to be transmitted by the UE is less than or equal to the second preset threshold.

[0015] Optionally, regardless of the screen state the UE is in, when identifying the low network rate usage scenario via the UE's data rate, in order to ensure the accuracy of identifying the low network rate usage scenario, the UE may further limit the data rate. For example, the UE calculates an appropriate duration for which the UE's data rate is less than or equal to a preset rate. If the duration exceeds a specific threshold, it may be determined that the UE is in a low network rate usage scenario. Otherwise, it is determined that the UE is not in a low network rate usage scenario.

[0016] Optionally, when LTE can meet the UE's low network usage requirements (i.e., LTE can satisfy the low network speed usage scenario), the UE can be preferentially disconnected from the 5G base station, i.e., it is preferable to release the NR connection in the LTE dual connection mode -NR. For example, in the LTE-NR dual connection state, when the UE is in the screen-off state and the data rate of the UE is less than the preset rate, the connection between the UE and the 5G base station is released.

[0017] With reference to the first aspect, in some possible embodiments, the UE includes a non-access NAS layer and a radio resource control RRC layer. Upon determining that the UE is in a low network rate usage scenario, the UE AP application processor may send a first notification message to the NAS. The first notification message is used to notify that the UE is in a low network speed usage scenario, or is specifically used to notify a condition for identifying a low network speed usage scenario. After receiving the first notification message, the NAS may send a second notification message to the RRC layer to instruct the RRC layer to stop measuring the connection between the UE and the 4G base station or the 5G base station, that is, stop LTE. or NR measurement. Optionally, the second notification message is further used to indicate to the RRC layer not to keep the connection between the UE and the 4G base station or the 5G base station. Accordingly, after receiving the second notification message, the RRC layer may disable the connection and communication function between the UE and the 4G base station or the 5G base station and stop the measurement of the connection between the UE and the 4G base station or the 5G base station, thereby stopping the LTE or NR measurement. Thus, the RRC layer subsequently cannot send a corresponding measurement report to the network side (which may be, in particular, a 4G base station or a 5G base station on the network side).

[0018] Optionally, upon determining that the UE is in a low network speed usage scenario, the AP application processor may send a first notification message to the NAS via a private command message or an existing command message. When the AP sends the first notification message via the private command message, the UE side does not discover the radio access network used by the UE for communication. After the connection between the UE and the 4G base station or the 5G base station is released, the user cannot recognize through the icon displayed on the interface of the UE the base station or access network connected to the UE for communication. In this case, the icon displayed on the UE interface does not change. For example, the displayed icon is 4G-5G under dual LTE-NR connection, and the displayed icon is still 4G-5G after the LTE connection or NR connection is released.

[0019] When the AP sends the first notification message through the existing command message, the icon displayed on the interface of the UE changes, and the user can learn from the displayed icon about the base station or access network connected to the UE for communication. For example, the icon displayed is 4G-5G under LTE-NR dual connection, the icon displayed is 5G after the LTE connection is released, and the icon displayed is 4G after the NR connection is released.

[0020] Optionally, the first notification message and the second notification message carry respective indication flag bits to instruct the corresponding functional operation or functional notification to be performed. For example, when the first notification message carries "030201", it means that the UE does not support 5G communication, and the connection between the UE and the 5G base station can be released, that is, the NR connection can be released. When the first notification message carries "08030201", this means that the UE supports 5G communication and the connection between the UE and the 5G base station can be re-established, that is, the NR connection can be re-established.

[0021] With reference to the first aspect, in some possible embodiments, the RRC layer may send a signaling message to the network side to appropriately release the radio resource occupied on the base station side when the connection between the UE and the 4G base station or the 5G base station is configured to releasing the connection between the UE and the 4G base station or the 5G base station on the base station side, respectively. Specifically, at the time of releasing the connection between the UE and the 4G base station, the RRC layer may send a signaling message to the 4G base station to instruct the 4G base station to release the radio resource occupied on the side of the 4G base station when the connection between the UE and the 4G base station is configured, to respectively release the connection between the UE and the 4G base station on the side of the 4G base station.

[0022] During the release of the connection between the UE and the 5G base station, the RRC layer may send an SCG channel failure message to the 5G base station to release the radio resource occupied on the side of the 5G base station when the connection between the UE and the 5G base station is configured to release connections between the UE and the 5G base station on the side of the 5G base station. An SCG link failure message may have different specifications in different protocol versions. For example, in the R12 protocol version, the SCG link failure message could be the signaling message SCGFailureInformation-r12-IEs and include parameters such as failureType failureType-r12. The failure type includes any one or combination of the following parameters: timer delay (i.e., data transfer delay supported on the UE side and on the network side), random access problem randomAccessProblem, RLC maximum number of retries rlc-MaxNumRetx (allowed maximum number of retries RLC data packets), SCG channel change failure scg-ChangeFailure (i.e. SCG channel change is not supported), etc.

[0023] With reference to the first aspect, in some possible embodiments, the UE further includes a non-access NAS layer. The NAS may send a signaling message to the corresponding base station to indicate to the base station to release the radio resource occupied on the side of the base station when the connection between the UE and the 4G base station or the 5G base station is configured to release the connection between the UE and the 4G base station or the 5G base station on the side of the base station. For example, the connection between the UE and the 5G base station is released. The NAS may send the first TAU message to the 5G base station to tell the 5G base station not to support the 5G connection. Accordingly, after receiving the first TAU message, the 5G base station decides not to communicate using the 5G connection, and can further release the radio resource occupied on the side of the 5G base station when the connection between the UE and the 5G is configured to release the connection between the UE and the 5G base station on the side 5G base station.

[0024] Optionally, the first TAU message carries an indication parameter to indicate not to support the connection link function between the UE and the 4G base station or the 5G base station. The indication information may be in the form of a given character, a numeric value, a character string, or an array.

[0025] With reference to the first aspect, in some possible embodiments, after the connection between the UE and the base station (eg, 4G base station or 5G base station) is released, the base station side may send a first RRC reconfiguration message to the RRC layer. The first RRC reconfiguration message is used to direct the RRC layer to release the radio resource occupied on the UE side when the connection between the UE and the 4G base station or the 5G base station is configured to release the connection between the UE and the 4G base station or the 5G base station on the UE side. Accordingly, in response to the first RRC reconfiguration message, the RRC layer may release the radio resource occupied on the UE side when the connection between the UE and the 4G base station or the 5G base station is configured to release the connection between the UE and the 4G base station or the 5G base station on the U.E.

[0026] Optionally, the first RRC reconfiguration message carries a release field that is specifically used to instruct the RRC layer to release a configuration parameter on the UE side, such as a cell ID receiving a downlink channel or a frequency that is associated with a connection configuration between the UE and the base 4G station or 5G base station.

[0027] With reference to the first aspect, in some possible embodiments, after the RRC layer releases the connection between the UE and the 4G base station or the 5G base station on the UE side, the RRC layer may send a third notification message to the NAS to notify that that at present the connection between the UE and the 4G base station or the 5G base station is already released on the UE side.

[0028] With reference to the first aspect, in some possible embodiments, when the UE is not in a low network speed usage scenario, the connection between the UE and the 4G base station or the 5G base station can be re-established, i.e., reestablishing as a connection between the UEs and the 4G base station, and the connections between the UE and the 5G base station help to improve the data rate of the UE in the network.

[0029] Optionally, a specific implementation in which the UE is not in a low network rate usage scenario is not limited. For example, the UE does not satisfy the above six discovery conditions under which the UE is in a low network speed usage scenario. For example, the UE is in a screen-on state.

[0030] With reference to the first aspect, in some possible embodiments, the UE includes a NAS and an RRC layer. After determining that the UE is not in a low network speed use case, the UE AP may send a fourth notification message to the NAS to notify that the UE is not in a low network speed use case and the connection between UE and a 4G base station or a 5G base station. Accordingly, after receiving the fourth notification message, the NAS sends the fifth notification message to the RRC layer to instruct the RRC layer to keep the connection between the UE and the 4G base station or the 5G base station, and to restore or start measuring the connection between the UE and the 4G base station or the base station. 5G station, i.e. start measuring LTE or NR. Accordingly, the RRC layer triggers an LTE or NR measurement in response to the fifth notification message, so that the UE subsequently sends a measurement report to the corresponding base station.

[0031] With reference to the first aspect, in some possible embodiments, the RRC layer may send a sixth notification message to a 4G base station or a 5G base station to notify the radio resource to be occupied on the base station side when the connection between the UE and the base station 4G base station or 5G base station are reconfigured to respectively re-establish a connection between the UE and the 4G base station or 5G base station on the 4G base station side or on the 5G base station side. Accordingly, the base station side receives the sixth notification message and reconfigures the radio resource to be occupied on the base station side when the UE connects to the base station to re-establish a connection between the UE and the base station on the base station side.

[0032] With reference to the first aspect, in some possible embodiments, after receiving the first notification message, the NAS may send a signaling message to the 4G base station or the 5G base station to instruct the UE to currently maintain a connection between the UE and the 4G base station or the base station. 5G to re-establish a connection between a UE and a 4G base station or a 5G base station on the base station side. As an example, reconnection between a UE and a 5G base station is used. The NAS may send a second TAU message to the 5G base station to instruct the 5G base station to maintain a connection between the UE and the 5G base station. Accordingly, after receiving the second TAU message, the 5G base station can reconfigure the radio resource to be occupied on the 5G base station side when the UE is connected to the 5G base station to re-establish a connection between the UE and the 5G base station on the 5G base station side.

[0033] With reference to the first aspect, in some possible embodiments, after re-establishing a connection between a UE and a 4G base station or a 5G base station, the 4G base station or 5G base station may send a second RRC reconfiguration message to the RRC layer to instruct the RRC layer reconfigure the radio resource to be occupied on the UE side when the UE is connected to the 4G base station or the 5G base station to re-establish a connection between the UE and the 4G base station or the 5G base station on the UE side. Accordingly, in response to the second RRC reconfiguration message, the RRC layer reconfigures the radio resource to be occupied on the UE side when the UE is connected to a 4G base station or a 5G base station in order to re-establish a connection between the UE and a 4G base station or a 5G base station on UE side.

[0034] Optionally, the second RRC reconfiguration message carries the spCellConfig configuration field. The field contains a configuration parameter for re-establishing a connection between the UE and a 4G base station or a 5G base station. For example, the configuration parameter includes a downlink receiving channel, a frequency, and a cell ID.

[0035] According to a second aspect, an embodiment of the present invention provides a user equipment including functional blocks configured to perform the method according to the first aspect.

[0036] According to a third aspect, an embodiment of the present invention provides another user equipment including a memory and at least one processor associated with the memory. The memory is configured to store instructions, the processor is configured to execute instructions, and when the processor executes the instructions, the method according to the first aspect is executed.

[0037] In some possible implementations, the user equipment further includes a communication interface. The communication interface communicates with the processor, and the communication interface is configured to communicate with another device (eg, network device) under the control of the processor.

[0038] According to a fourth aspect, an embodiment of the present invention provides a wireless transceiver unit including a non-access NAS layer entity and a radio resource control RRC entity. The NAS entity is configured to perform the respective implementation steps performed by the NAS according to the first aspect, and the RRC entity is configured to perform the respective implementation steps performed by the RRC layer according to the first aspect. For example, a NAS object is configured to:

receiving the first RRC reconfiguration message sent by the 5G base station, where the first RRC reconfiguration message is used to direct the RRC layer to release the radio resource occupied on the UE side when the connection between the UE and the 5G base station is configured to release the connection between the UE and the 5G base station on the side UE; and

releasing, according to the instruction of the first RRC reconfiguration message, the radio resource occupied on the UE side when the connection between the UE and the 5G base station is configured to release the connection between the UE and the 5G base station on the UE side.

[0039] According to a fifth aspect, an embodiment of the present invention provides a system chip (eg, SOC chip) including an application processor AP and a baseband processor BP. The baseband processor includes a NAS and an RRC layer. The application processor is configured to determine if the UE is in a low network speed usage scenario. The baseband processor is configured to: when the UE is in a low network speed usage scenario, release the connection between the UE and the 4G base station or the 5G base station.

[0040] For example, the baseband processor is configured to connect a UE to both a 4G base station and a 5G base station using the LTE-NR dual connection technology of the radio access network.

[0041] The application processor is configured to determine that the UE is in a screen-off state and the UE's data rate is less than or equal to a preset rate.

[0042] The baseband processor is further configured to: when the UE is in a screen-off state and the data rate of the UE is less than or equal to a preset rate, release the connection between the UE and the 5G base station.

[0043] In embodiments of the present invention, for content that is not shown or described, reference may specifically refer to corresponding descriptions in the embodiments of the aforementioned first aspect. Details are not described here again.

[0044] According to a sixth aspect, a computer-readable storage medium is provided for storing program code for processing a network connection. The program code includes instructions for performing the method according to the first aspect.

[0045] In the present invention, based on the implementations in accordance with the above aspects, an additional combination can be performed to provide more implementations.

BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly describe the technical solutions of the embodiments of the present invention or the prior art, the accompanying drawings necessary to describe the embodiments or the prior art are briefly described below.

[0047] FIG. 1 is a schematic diagram of a network architecture of a system according to an embodiment of the present invention;

[0048] FIG. 2 is a schematic diagram of layered communication in a user equipment interface protocol according to an embodiment of the present invention;

[0049] FIG. 3 is a schematic diagram of communication channel determination by a user equipment according to an embodiment of the present invention;

[0050] FIG. 4 is a schematic diagram of a communication channel determination by a network side according to an embodiment of the present invention;

[0051] FIG. 5 is a schematic flowchart of a network connection processing method according to an embodiment of the present invention;

[0052] FIG. 6 is a schematic diagram of an interface in which a display icon is changed according to an embodiment of the present invention;

[0053] FIG. 7 - fig. 9 are schematic flowcharts of other network connection processing methods according to embodiments of the present invention;

[0054] FIG. 10 is a schematic block diagram of a system chip according to an embodiment of the present invention;

[0055] FIG. 11 is a schematic block diagram of a wireless transceiver unit according to an embodiment of the present invention; and

[0056] FIG. 12 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.

Description of Embodiments

[0057] The technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings of the present invention.

[0058] First, some of the technical knowledge of this application is described.

[0059] 1. LTE-NR dual connectivity technology

[0060] In LTE-NR dual connectivity technology, a UE is simultaneously connected to two base stations, which are called a master base station (master eNB, MeNB) and a secondary base station (secondary eNB, SeNB). Dual connectivity can implement carrier aggregation, and certain carrier aggregation channels are separated at the media access control (MAC) layer. The physical layer resources of the two base stations need to be scheduled synchronously at the MAC layer. Dual connectivity links are separated at the packet data convergence protocol (PDCP) layer, and two base stations can independently schedule physical layer resources without strict synchronization. The following will mainly describe in detail the LTE-NR dual connectivity technology in the user plane and the control plane.

[0061] 1.1 Control Plane

[0062] FIG. 1 is a schematic diagram of a network architecture of a system to which LTE-NR dual connectivity technology is applicable. The network architecture of the system shown in FIG. 1 includes a main base station MeNB, a secondary base station SeNB, a user equipment UE, a mobility management entity (MME), and a serving gateway (serving gateway, S-GW). The number of main base stations, secondary base stations and user equipment is not limited. Here, one main base station, one secondary base station, and one user equipment are used as an example and are not restrictive.

[0063] The base station (which may be, in particular, MeNB or SeNB) provides the user with an air interface, and the user equipment UE connects to the base station wirelessly. In addition, the base station is connected to the operator's core network by wire to implement intercom.

[0064] The user equipment UE is a device that supports a network connection and may include, but is not limited to, a mobile phone, a desktop personal computer (table personal computer), a personal digital assistant (personal digital assistant, PDA), a mobile Internet device. (mobile Internet device, MID), wearable device (wearable device) and other devices that communicate with the network.

[0065] The MME Mobility Management Entity is a core network network element and is mainly responsible for providing non-standalone (NSA) network signaling, user authentication, roaming control, and the like. The serving gateway S-GW is mainly responsible for processing user data in the local network, such as routing or forwarding packet data.

[0066] As shown in the drawing, the main base station MeNB and the mobility management entity MME are connected by an S1-C interface, and the main base station MeNB and the serving gateway S-GW are connected by an S1-U interface. The main base station MeNB and the secondary base station SeNB can be connected via the X2-C interface. The secondary base station SeNB can be connected to the S-GW via the S1-U interface according to the actual service requirements. In the communication process, the main base station MeNB can perform communication coordination with the secondary base station SeNB through the X2-C interface to generate an RRC message, and then forward the RRC message to the UE to perform functions such as broadcasting network system information, switching, measurement configuration and measurement reporting. This is not a limitation.

[0067] In a real application, an interface is a way of exchanging information between different network elements, and the interface protocols used for communication between different interfaces may be different. Currently, the interface protocol of the wireless communication standard is divided into three layers: the L1 physical layer (physical layer, PHY), the L2 data link layer, and the L3 network layer. For example, FIG. 2 is a schematic diagram of layered communication in a UE interface protocol. As shown in FIG. 2, the PHY L1 physical layer is located at the bottom and is mainly responsible for modulation and demodulation processing, antenna mapping, or other physical layer functions in telecommunications.

[0068] The L2 data link layer includes a PDCP layer, a radio link control (RLC) layer, and a MAC layer. The PDCP layer is primarily responsible for header compression to reduce the bit streams transmitted over the air interface. The RLC layer is mainly responsible for processing such as segmentation, connection, and higher layer data sequencing. The MAC layer is mainly responsible for hybrid automatic repeat request (HARQ) retransmission, uplink and downlink scheduling, and the like. In a real application in LTE-NR dual connectivity technology, the carrier aggregation channels can be specifically separated at the L2 link layer. As specifically described above, carrier aggregation channels are specifically separated at the medium access control (MAC) layer, and dual-connection channels are separated at the packet data convergence protocol (PDCP) layer.

[0069] The L3 network layer includes a non-access stratum (NAS) layer and an RRC layer. The non-access NAS layer may be configured to convey user information or control information, such as information about establishing, releasing, and managing mobility of a 4G/5G link or service. The protocol layer below the NAS may also be referred to as the Access Stratum (AS). The RRC layer supports multiple function signaling protocols between the UE and the eNB, broadcasts NAS and AS system messages, establishes, maintains and releases an RRC connection, establishes, changes and releases the end of an end-to-end radio bearer (for example, a radio access network link between a UE and a network) and performs mobility management, including functions such as UE measurement reporting, handover, and cell reselection. In an actual application, the UE may communicate with the network side via the L3 network layer to perform operations such as establishing and releasing 4G and 5G access networks. Details are described below in this application.

[0070] 1.2 User plane

[0071] LTE-NR dual connectivity technology defines a primary cell group (master cell group, MCG) and a secondary cell group (secondary cell group, SCG). According to different data splitting and forwarding methods, data links are classified into three types: MCG link, SCG link, and split link. The primary MCG cell group is a cell cluster in which at least one main base station MeNB is located, and the secondary cell group is a cell cluster in which at least one secondary base station SeNB is located.

[0072] In a real application, all data channels perceived by the UE and the network side are different. In particular, FIG. 3 and FIG. 4 shows UE data bearers and network side data bearers, respectively.

[0073] As shown in FIG. 3, the UE defines three types of data channels: MCG channel, SCG channel, and split channel. The MCG bearer means that the data is routed from the core network S-GW to the main base station MeNB, and the MeNB directly forwards the data to the UE. The SCG channel means that the data is routed from the core network S-GW to the secondary base station SeNB, and the SeNB directly forwards the data to the UE. Split channel means that data is separated on the base station side and may be sent by the main base station MeNB or the secondary base station SeNB to the UE, or may be transmitted by the main base station MeNB and the secondary base station SeNB. to the UE at the same time according to the preset split ratio to provide the service.

[0074] As shown in FIG. 3, when the UE determines that the data bearer is an MCG bearer, the bearer (also referred to as the MCG bearer) used in data transmission is: LTE PDCP/NR PDCP-LTE RLC-LTE MAC. When the UE determines that the data bearer is an SCG bearer, the bearer (also referred to as the SCG bearer) used in data transmission is: NR PDCP-NR RLC-NR MAC. When the UE determines that the data channel is a split channel, the communication channel (also called split channel) used in data transmission is NR PDCP-LTE RLC-LTE MAC or NR PDCP-NR RLC-LTE MAC. Because the SCG channel only uses the 5G NR network resource, this SCG channel can also be referred to as an NR channel. Because the MCG bearer uses the 4G LTE network resource, this MCG bearer may also be referred to as an LTE bearer.

[0075] FIG. 4 is a schematic diagram of the link definition of data communication channels on the network side. As shown in FIG. 4, the network side defines data links in six ways: MCG link ending at the master node (MN, which may specifically refer to the MeNB master base station), SCG link ending at MN, split data link ending at MN , an MCG channel terminating in a secondary node (secondary node, SN, which may specifically refer to a secondary base station SeNB), an SCG channel terminating in SN, and a split channel terminating in SN.

[0076] The channel ending in MN is a radio channel whose PDCP layer is on the main base station MeNB and not on the secondary base station SeNB. In contrast, the channel ending in SN is a radio channel whose PDCP layer is in the secondary base station SeNB and not in the main base station MeNB. As shown in FIG. 4, when the data bearer detected on the network side is an MCG bearer ending in MN, the bearer used in data transmission is: LTE PDCP/NR PDCP-LTE RLC-LTE MAC. When the data bearer sensed at the network side is a split bearer ending in MAN, the bearer used in data transmission is: NR PDCP-LTE RLC-LTE MAC or NR PDCP-NR RLC-LTE MAC. It can be specially selected according to actual requirements and is not limited. The communication channels corresponding to the communication channels detected on the network side are specifically shown in the drawing and are not described in detail here.

[0077] 2. Networks

[0078] Currently, the 3GPP standard defines two types of network deployment methods: standalone (standalone, SA) networks and non-standalone (NSA) networks. In an autonomous network, a new existing network is created, which includes a new base station (En-gNB), a link (NR link) and a core network. In non-autonomous networks, the existing 4G infrastructure is used to deploy the 5G network.

[0079] For 5G, a non-standalone NAS network based on LTE-NR dual connectivity technology can allow the phased deployment of the 5G core network and access network, which contributes to the rapid deployment and application of 5G. When 5G deployment enters the standalone SA network stage, LTE-NR dual connectivity technology can expand 5G network coverage and improve network performance. It can be seen that LTE-NR dual connectivity technology is an important use case in the non-standalone 5G NAS network scenario.

[0080] Next, some low network speed usage scenarios are described. A low network rate use case is a use case in which the user equipment has low network usage requirements, and may be specifically a use case in which the rate at which the UE transmits data (abbreviated as data rate) is low, or the data packet size to be transmitted by the UE is small. On the contrary, a use case in which the user equipment has high network usage requirements may be referred to as a high network speed use case. For example, below are the following possible use cases with low network speed:

[0081] 1. The UE is in a screen-on state and operates at a low network speed. That is, the data rate of the UE is less than or equal to the preset rate.

[0082] In this application, a low network rate means that the data rate of the UE is low, eg, less than or equal to a preset rate. In particular, a low network rate may mean that the UE's transmission rate for uplink data is low, eg, less than or equal to the first preset rate; may mean that the UE's transmission rate for downlink data is low, eg, less than or equal to the second preset rate; or may mean that the UE's transmission rate for all data including uplink data and downlink data is low, eg, less than or equal to the third preset rate. For ease of description, the uplink data rate, the downlink data rate, and the all data rate including uplink data and downlink data are collectively referred to as data rate in this application and are abbreviated as data rate. The data rate refers to the number of data bits supported by the UE per unit of time, such as 50 bps.

[0083] The preset rate may be configured in the system, for example, adjusted according to user preferences or actual requirements, or may be a value obtained through statistics of huge experimental data. The first preset speed, the second preset speed and the third preset speed in this application are set in the system and may be the same or different, and there are no restrictions.

[0084] In a real application, the UE operates at low network speed in many scenarios, and the following three scenarios are used as examples.

[0085] In the first scenario, the low network speed application launch function is enabled in the UE, and the high network speed application launch function is disabled. In particular, in order to meet the requirements of using the network at low network speed, the UE can set the application function in power saving mode as follows: allow the launch of the application with a low network speed and prohibit the launch of the application with a high network speed, that is, enable the application launch function with a low network speed and disable the function of launching the application with a high network speed. It is understood that after the high network speed application launch function is disabled in the UE, only the low network speed application is allowed to start in the UE. Because the data rate allowed in these low network speed applications is low, the UE may determine that the UE is operating at a low network speed. Optionally, when a plurality of low network speed applications are simultaneously running in the UE, the sum of the data rates of low network speed applications is also small, such as less than a preset rate, and the requirement to use a low network speed network can also be met. In this case, it is still determined that the UE is operating at a low network speed.

[0086] A low network rate application is an application that is deployed in a UE and has low data rate requirements, such as the requirement that the data rate to be transmitted in the application be less than the fourth preset rate. The low network speed application may be configured in the system or manually configured by the user, and may be, for example, an application such as a camera application, a call application, an SMS application, and a memo application.

[0087] Accordingly, a high network speed application is an application that is deployed in a UE and has high data rate requirements, such as a requirement that the data rate be greater than or equal to the fifth preset rate. The high speed network application may also be configured on the system or customized by the user according to personal preferences, and may be, for example, a music application or a video application.

[0088] Optionally, in order to exclude the case where the UE is temporarily running at a low speed, the case of incorrect determination, and the like, a longer duration determination condition is set for the UE. For example, the UE may obtain a duration during which the UE's data rate is less than or equal to a preset rate. When the duration is greater than or equal to a certain threshold (eg, 1 minute), it may be determined that the UE is operating at a low network speed. Otherwise, it is still determined that the UE is not operating at a low network speed. That is, the condition for identifying that the UE is in a low network rate usage scenario may be specifically: the UE is in a screen-on state and the UE's data rate is less than or equal to a preset rate for a certain period of time.

[0089] In the second scenario, the UE exchanges a heartbeat packet with another device in order to maintain a normal communication connection. In particular, when the UE is not performing service communication with another device (eg, a base station), that is, the UE does not need to transmit service data in order to maintain a communication connection between the UE and the other device, the UE can usually periodically send a heartbeat packet to the other device, to notify that the UE maintains a communication connection with another device. In a real application, the data rate of a heartbeat packet is usually low, such as a few kilobits per second. The size of a heartbeat packet is also small, for example, a few kilobits. As a rule, a heartbeat packet can be an empty packet with no overhead, that is, it carries only a header and no overhead.

[0090] In the third scenario, the UE is in a low speed operation scenario such as a game scenario or a navigation scenario. For example, in a game scenario, the UE launches a game application. In the actual application, the gaming application only has high requirements for the speed of the central processing unit (CPU) in the UE, and, in comparison, has a low requirement for the data rate (ie, network speed) of the UE. Therefore, when the UE is in a game scenario, it can be determined that the UE is operating at a low network speed.

[0091] Further, in this application, UE screen states can be classified into a variety of types: screen on state, screen off state, lock state, and unlock state. In an actual application, the UE may be in an unlocked-on-screen state or a locked-on-screen state, in particular. Typically, the UE is also in the locked state when the UE is in the screen off state. The screen state of the UE may be specifically identified using a software detection method or a hardware detection method. The programmatic detection method is used as an example. The UE may first determine the screen on or off state based on the on-screen isScreenOn value defined in the isInteractive HMI code in the power manager powermanager. For example, when isScreenOn is true, it means that the UE is in the screen-on state; or otherwise, it is determined that the UE is in a screen-off state. After determining that the UE is in the screen-on state, the UE may then detect, based on the isScreenLocked screen lock code, whether the UE is locked. If the UE is locked, the UE may be determined to be in a locked state, and specifically, the UE may be in a screen-on-locked state. Otherwise, it is determined that the UE is in the screen-on state, and specifically, the UE is in the unlocked-on-screen state.

[0092] Alternatively, the UE may determine the screen state of the UE based on the Android broadcast message sent by the UE system. In particular, when the Android broadcast message is used to indicate that the screen is on, it can be determined that the UE is in the screen-on state; when the Android broadcast message is used to indicate that the screen is off, it can be determined that the UE is in the screen off state; when the Android broadcast message is used to indicate that the screen is locked, it may be determined that the UE is in a locked state, and the like. There may be many ways to identify screen states of the UE, and these ways are not listed one by one in this document in the present invention.

[0093] 2. The UE is in the screen-on state and the data packet size to be transmitted by the UE is less than or equal to the first preset threshold.

[0094] In the screen-on state, in order to satisfy the low network rate usage scenario, the UE may consider not only the data rate, but also the amount of data to be transmitted by the UE (i.e., the size of the data packet to be transmitted). The size of the data packet to be transmitted by the UE may be, in particular, the size of all data packets to be transmitted by the UE in the application (i.e., the amount of data to be transmitted), or the size of the data packet to be transmitted by the UE in the application. unit of time.

[0095] In particular, when the UE is in the screen-on state, if the size of the data packet to be transmitted by the UE is large, such as larger than the first preset size threshold, the UE may consider that the current communication load on the UE is high, that is, the data packet or the amount of data to be transmitted is large, and the network usage requirements are high. Accordingly, the UE may consider that the UE is in a high network speed usage scenario. Otherwise, if the size of the data packet to be transmitted by the UE is small, the UE may consider that the communication load of the UE is low, that is, the size of the data packet or the amount of data to be transmitted is small, and the network usage requirement is not high. . Accordingly, the UE may consider that the UE is in a low network rate usage scenario.

[0096] 3. The UE is in the off state, that is, the mobile data function of the UE is disabled.

[0097] When the UE cannot be connected to the network (which may specifically refer to that the mobile data function or the mobile data function of the UE is disabled) in any screen state (e.g., screen on state or screen off state), you can directly determine that the UE is in a low network speed usage scenario. In other words, when the UE is in the disconnected state, it can be directly determined that the UE is in a low network speed usage scenario. The disabled state in this document does not mean a complete shutdown of the network, but instead refers to the fact that the mobile network used by the user equipment for communication is disabled, and the communication performed by the user equipment using other data networks is not affected. Specifically, only the mobile data function of the UE can be disabled, for example, the 2G, 3G, or 4G network access function of the UE is disabled, and the data network (eg, telephone network) between the UE and the base station eNB is maintained. At this time, the UE can still perform normal communication with the base station. Complete disconnection from the network means that the UE is not connected to the network and the UE exists as an idle UE. Since the UE is not connected to any network, the network side cannot determine the presence of the UE and therefore cannot perform network monitoring on the UE.

[0098] For example, the user equipment UE is a mobile phone. In this embodiment, the disconnected state of the mobile phone refers to the fact that the mobile data connection function of the mobile phone is disabled, that is, the network access function of 2G, 3G, 4G and 5G mobile networks is disabled, but the normal communication between the mobile phone and other data networks , for example, the normal communication between the mobile phone and the base station side (core network and telephone network) is not disabled. Accordingly, since the mobile phone is not disconnected from the telephone network at the base station side, communication between the mobile phone and the telephone network is not affected. Thus, the mobile phone can usually answer calls or make calls. However, if the mobile phone is completely disconnected, in this scenario, the mobile phone is disconnected from all communication networks (including the core network and the telephone network at the base station side, etc.) and does not communicate between the mobile phone communication networks. In this case, the data transfer function of the mobile phone is completely disabled. For example, in this case, the mobile phone cannot answer calls or make calls.

[0099] 4. The overall temperature of the UE is greater than or equal to a preset temperature threshold.

[00100] Regardless of whether the UE is in the screen-on state or the screen-off state, when the overall temperature of the UE is excessively high, such as the overall temperature is greater than or equal to a preset temperature threshold, the UEs are prone to network failure or disconnection, or even the UE may burn, and in particular, the central processing unit (CPU) of the UE may burn. In order to lower the overall temperature and protect the UE, the UE needs to automatically close the running application, for example, firstly close the application that has high power consumption and requires high network speed, such as a video application, and then close the low power application. power consumption and low network speed requirements, such as a weather app or a calendar app. Therefore, when the UE detects that the overall temperature of the UE is excessively high, it can be considered that the UE is currently already closing the high network speed application, that is, already closing the high network speed application in the UE. In this case, the UE is in a low network speed usage scenario.

[00101] The method for determining the overall temperature of the UE is not limited. For example, when a temperature sensor is installed in the UE, the temperature sensor may be configured to detect and view the overall temperature of the UE. Alternatively, when no temperature sensor is installed in the UE, third party software (a temperature measurement application such as Ludashi) installed in the UE can be configured to detect the overall temperature of the UE.

[00102] In a real application, the overall temperature of the UE is the sum of the temperatures of all components in the entire UE when the components are operating. Since the received temperature of each component may have a certain error, the received total temperature of the UE also has a large error, and the accuracy of the received temperature is poor. Therefore, in an actual application, the overall temperature of the UE can usually be replaced by the temperatures of some major components in the UE, such as CPU temperature, system on chip (SOC) temperature, and battery temperature.

[00103] For example, the CPU is the most important hardware for the overall performance of the UE, and the performance of the CPU directly affects the overall performance of the UE. Therefore, CPU temperature is used as an important indicator of overall temperature. For example, the overall temperature is the temperature of the CPU. The UE may log into the UE's basic input/output system (BIOS) to obtain the CPU temperature, or the UE may run a CPU temperature acquisition software (eg, a Python script file) to obtain the CPU temperature. This helps to subsequently determine whether the UE usage scenario is a high network speed usage scenario or a low network speed usage scenario based on the CPU temperature. Details are not described here.

[00104] 5. The UE is in a screen-off state and operates at a low network rate, that is, the UE's data rate is less than or equal to the preset rate.

[00105] In the screen off state, the UE operates with a low network speed in a variety of scenarios, and there may be the following two scenarios.

[00106] In the first scenario, in the screen off state, the UE supports running an application in the background, such as playing music. In order to meet the requirement of using a network with a low network speed, the UE can set the application function as follows: allow application launch with a low network speed and prohibit application launch with a high network speed, that is, the application launch function with a low network speed and disable the application launch function with a high network speed. It is understood that after the high network speed application launch function is disabled in the UE, only the low network speed application is allowed to start in the UE. Because the data rate allowed in these low network speed applications is low, the UE can determine that the UE is operating with a low network speed and is in a low network speed usage scenario. Optionally, when a plurality of low network speed applications are simultaneously running in the UE, the sum of data rates of low network speed applications is also small, such as less than a preset rate, and the requirement to use a low network speed network can also be met. In this case, it is still determined that the UE is operating at a low network speed.

[00107] In the second scenario, the user equipment does not transmit or receive data in the screen off state, or only transmits a data packet, such as a test heartbeat packet or a monitoring data packet, to keep the application program awake. This type of data packet is periodically received and sent, and the size of the data packet is small. In the above case, the user equipment can be considered to have low network parameter requirements and the like and have low network usage requirements, and the UE is considered to be operating in a low network speed, that is, in a low network speed usage scenario.

[00108] Optionally, after the UE enters the screen off state, the data rate of the UE typically becomes lower, eg, the data rate is less than the preset rate. Therefore, when the identification accuracy of the low network speed usage scenario is not considered when the UE detects that the UE is in the screen-off state, the UE can be directly considered to be in the low network speed usage scenario.

[00109] 6. The UE is in a screen-off state and the data packet size to be transmitted by the UE is less than or equal to the second preset threshold.

[00110] In the screen off state, the UE also receives and sends data. For example, the UE downloads data in the screen off state and transmits a heartbeat packet in the screen off state. In order to satisfy the requirement of using a network with a low network speed, the UE may not only consider the data rate, but also determine the amount of data to be transmitted by the UE (ie, the data packet size to be transmitted).

[00111] Particularly, when the UE is in the screen-off state in order to meet low network usage requirements in a low network speed usage scenario, the size of a data packet to be transmitted by the UE can be detected to determine whether or not the UE is in a use case with low network speed. Specifically, when the size of the data packet to be transmitted by the UE is smaller than the second preset size threshold, the UE may consider that the communication load of the UE is high and the network usage requirements are high, and determine that the UE is not in the use case. with low network speed. On the contrary, the UE's communication load is considered to be low and the network usage requirements are low, and it is determined that the UE is in a low network speed usage scenario.

[00112] For example, a low network speed use case is a heartbeat packet exchange use case. networks. Specifically, the UE may periodically send a heartbeat packet to the network side to notify that the UE currently has a communication connection with the network side in order to maintain a long-term connection between the UE and the network side. Accordingly, after receiving the heartbeat packet, the network side may also return a response packet to the UE to notify that the network side knows that there is a communication connection between the UE and the network side. In a real application, the size of a heartbeat packet is very small, typically a few kilobits, or a heartbeat packet can be an empty packet (that is, a data packet that carries no overhead and contains only a header). In this scenario, the UE is obviously in a low network speed usage scenario.

[00113] Then, in order to solve problems such as wastage of network resources and high power consumption of a device when communicating using LTE-NR dual connection technology in a low network speed usage scenario in conventional technologies, the respective network connection processing options in the embodiments of the present application described below.

[00114] FIG. 5 is a schematic flowchart of a network connection processing method according to an embodiment of the present invention. The method shown in FIG. 5 includes the following implementation steps.

[00115] S5101: Upon detecting that the UE is in a low network speed usage scenario, the UE's application processor (AP) sends a first signaling message to the non-access NAS layer. The first signaling message is used to notify that the UE is currently in a low network rate usage scenario and the access network connection in LTE-NR dual connection mode can be released. Accordingly, the NAS receives the first signaling message.

[00116] In this application, when the UE detects that the UE is in a low network speed usage scenario, for example, the AP application processor detects that the UE is in a low network speed usage scenario, a first signaling message may be sent to the NAS of the UE. The first signaling message is used to notify that the UE is in a low network rate usage scenario, and the connection of any of the access networks in the dual LTE-NR connection can be released. The first signaling message may also be referred to as the first notification message. This is not limited in the present invention. For a particular implementation in which the UE is in a low network speed usage scenario, reference can be made to the corresponding descriptions in the above embodiments. This is not described in detail here.

[00117] In particular, the first signaling message may be a private command message, such as an AT command (attention) message; or by a normal command message, such as the at^syscfgex command message, used to disable the link function of the NR connection (that is, disable the 5G link function). When the first signaling message is a private command message, such as an AT command message, the AP may send an AT command message to the NAS via the AT command interface to release the LTE connection or the NR connection. In this case, the UE does not detect the access network used for communication by the UE. After the UE releases the LTE connection or the NR connection in LTE-NR dual connection, the icon displayed on the UE interface does not change. The user cannot know, based on the displayed icon, the connection of the access network used in the current communication of the UE, and cannot know whether the UE is currently releasing an LTE connection or an NR connection in LTE-NR dual connection. The displayed icon is used to identify the radio access network or wireless communication technology such as LTE, NR or LTE-NR used in the network connection and communication of the UE.

[00118] When the first signaling message is a normal command message, the AP may send a normal command message to the NAS to release the LTE connection or the NR connection. For example, the AP may send an at^syscfgex command message to the NAS to disable the NR connection's link function and release the NR connection. In this case, after the UE releases the LTE connection or the NR connection in LTE-NR dual connection, the icon displayed on the UE interface changes. The user can know, based on the displayed icon, the connection of the access network used in the current communication of the UE, that is, know whether the UE releases the LTE connection or the NR connection in LTE-NR dual connection.

[00119] In an actual application, the displayed icon may be specifically configured in the system to distinguish between access networks connected to the UE. For example, when the UE uses 4G LTE for network connection and communications, the displayed icon may be the symbol "4G". For example, FIG. 6 is a schematic diagram of possible icon change when switching LTE-NR dual connection. As shown in FIG. 6(a) of fig. 6 shows that a UE connects to a network using LTE-NR dual connectivity technology to communicate with a 4G base station and a 5G base station on the network side. As shown in (a) of FIG. 6, the icon displayed to identify LTE-NR dual connection may be "4G-5G". In (b) of FIG. 6, after the UE releases the NR connection in the dual LTE-NR connection, only the LTE connection is retained for network access to communicate with the 4G base station. Specifically, as shown in the figure, the icon displayed to identify the LTE connection may be "4G". In (c) of FIG. 6, the UE releases the LTE connection in the LTE-NR dual connection mode and retains only the NR connection for network access to communicate with the 5G base station. As shown in the figure, the icon displayed to identify the NR connection may be "5G". The icons displayed in the three types of wireless communication technologies shown in FIG. 6 is just a possible example. This is not a limitation.

[00120] The first signaling message is used to indicate to release the connection of any of the access networks in LTE-NR dual connectivity, and any access network may be an access network configured in the UE system. For example, according to actual network usage requirements of the UE, an LTE access network connection or an NR access network connection used for communication between a UE and a network side is released and abbreviated as an LTE connection or an NR connection below. For example, when the current network usage requirements for the UE are high, such as the size of the data packet currently to be transmitted by the UE is greater than the preset second threshold and less than or equal to the preset first threshold, the system may release the LTE connection at by default. On the contrary, when the current network usage requirements of the UE are not high enough, for example, the size of the data packet currently to be transmitted by the UE is less than or equal to the preset third threshold, the system can release the default NR connection and keep the LTE connection to meet the low requirements for using the UE network. Preset first threshold, preset second threshold, and preset third threshold are configured in the system. The second preset threshold is less than the first preset threshold, and the second preset threshold and the third preset threshold may or may not be equal. In this application, it is expressly not limited.

[00121] In this application, the NR connection is the connection between the UE and the 5G base station, and the LTE connection is the connection between the UE and the 4G base station. Accordingly, in this application, the release of the NR connection releases the connection between the UE and the 5G base station, and the release of the LTE connection releases the connection between the UE and the 4G base station.

[00122] S5102: The NAS sends a second signaling message to the RRC layer. The second signaling message is used to indicate to the RRC layer not to communicate using an LTE connection or an NR connection. Accordingly, the RRC layer receives the second signaling message.

[00123] After receiving the first signaling message, the NAS may send a second signaling message (which may also be a second notification message) to the RRC layer to instruct the RRC layer to not currently communicate using an LTE connection or an NR connection, that is, the RRC layer cannot use an LTE connection or an NR connection for data transmission. Optionally, the second signaling message is further used to instruct the RRC layer to stop measuring the LTE or NR access network, which is abbreviated as stop measuring LTE or NR below.

[00124] In an actual application, the second signaling message includes at least one indication flag bit used to direct the RRC layer to perform the corresponding functional operation. The form of the indication flag bit is not limited, for example, it can be a character string, a numeric value, or an array. For example, when the bits of the indication flag are "00", this indicates an indication to the RRC layer not to communicate using dual LTE or NR connection; "01" means instructing the RRC layer to communicate using dual LTE or NR connectivity; "00" means to tell the RRC layer not to communicate using LTE or NR dual connection and disable the LTE or NR measurement function; and "11" means to tell the RRC layer to communicate using dual LTE or NR connection and activate the LTE or NR measurement function.

[00125] In a particular implementation, upon detecting that the UE is in a low network rate usage scenario, the UE AP may send a first signaling message to the UE's wireless modem module to command to release the connection of any of the access networks in the dual LTE-NR connection. The modem module may specifically be a baseband processor (BP) deployed in the UE and includes a NAS and an RRC layer. AP and BP are described in detail later in this application. Accordingly, after the modem module receives the first signaling message, the NAS may send a second signaling message to the RRC layer to notify that the UE does not communicate using an LTE connection or an NR connection, and LTE or NR measurements must be performed. has stopped.

[00126] Additionally, optionally, the second signaling message may also be used to instruct the RRC layer to disable the UE's uplink data transmission function and disable the LTE or NR Measurement Report reporting function, e.g., prohibit the UE from sending data or LTE or NR Measurement Report to side of the network.

[00127] S5103: The RRC layer disables communication using an LTE connection or an NR connection in accordance with the instruction of the second signaling message.

[00128] Accordingly, after receiving the second signaling message, the RRC layer may disable the communication function of the LTE connection or the NR connection according to the instruction of the second signaling message. Optionally, the RRC layer may also stop the measurement of LTE or NR of the RRC layer so that an LTE or NR measurement report, abbreviated as an LTE or NR measurement report, is not subsequently sent to the corresponding base station. That is, the RRC layer may disable the LTE or NR measurement report reporting function so that the network side (which may be a network side base station in particular) cannot receive the LTE or NR measurement report sent by the UE.

[00129] An LTE or NR measurement is specifically used to measure the signal quality of a link (i.e., an LTE or NR channel) of an LTE or NR access network, where the LTE or NR measurement is also an LTE or NR channel measurement. In some possible embodiments of the present application, "LTE" and "LTE channel" may be used interchangeably without being restrictive, and "NR" and "NR channel" may be used interchangeably without being restricted. Accordingly, the LTE or NR measurement report may include, but is not limited to, the measurement ID and the measurement result of the communication channel (LTE or NR channel) of the access network, for example, information about the strength of the received downlink reference signal (reference signal received power, RSRP) and the quality of the received downlink reference signal (reference signal received quality, RSRQ).

[00130] S5104: The RRC layer sends a third signaling message to the network (network, NW) side. The third signaling message is used to instruct the network side to release the radio resource occupied on the network side when the LTE connection or the NR connection is configured to release the LTE connection or the NR connection on the network side. Accordingly, the network side NW receives the third signaling message.

[00131] After receiving the second signaling message, the RRC layer may send a third signaling message to the network side via the access network that is not down. The third signaling message is used to instruct the network side to release the radio resource (or network resource) occupied by the LTE connection or the network side NR connection to release the LTE connection or the network side NR connection, that is, to release the network side connection between the UE and the 4G base station or a 5G base station on the side of the network.

[00132] In particular, at the time of release of the NR connection, the RRC layer may send a third signaling message to the network side via the LTE access network to command to release the radio resource occupied on the network side, when the NR connection is configured to release the NR connection on the network side, that is, release the connection between the UE and the 5G base station on the network side.

[00133] In an actual application, the third signaling message may be an SCG link failure message and is specifically used to release the radio resource occupied by the NR connection on the network side, such as the radio resource associated with each functional layer (e.g., PDCP NR, RLC NR, MAC NR, and NR PHY) included in the SCG channel used when communicating using an NR connection. For example, the radio resource associated with the NR PHY is released. Specifically, information such as the downlink receiving channel, frequency, and cell ID can be released.

[00134] In different versions of the 5G protocol, specific implementations of the SCG channel failure message may differ. For example, in the standard R12 protocol, the SCG link failure message may be specifically the signaling message SCGFailureInformation-r12-IEs and include parameters set by the protocol such as failureType failureType-r12. The failure type is used as an example. The failure type may specifically include any one or combination of the following parameters: timer delay (i.e., data transfer delay supported on the UE side and on the network side), random access problem randomAccessProblem, maximum number of RLC retransmissions rlc-MaxNumRetx ( allowed maximum number of retransmissions of RLC data packets), scg-ChangeFailure SCG channel change (i.e. SCG channel change is not supported), etc. In this application, it is expressly not limited.

[00135] Accordingly, at the time of release of the LTE connection, the RRC layer may send a third signaling message to the network side via the NR access network to specifically release the radio resource occupied by the LTE connection on the network side, for example, the radio resource related to each functional layer (for example, LTE PDCP, LTE RLC, LTE MAC and LTE PHY) included in the MCG channel used in data exchange using an LTE connection. In different versions of the protocol, specific implementations of the third signaling message are not limited. Accordingly, after receiving the third signaling message, the network side can release, according to the instruction of the third signaling message, the radio resource occupied by the network side LTE connection, for example, release information such as downlink receiving channel, frequency, and cell ID to release the LTE connection. on the network side, that is, release the connection between the UE and the 4G base station.

[00136] Optionally, the third signaling message can also be used to notify that the UE (which may be the RRC layer of the UE in particular) is already stopping the LTE or NR measurement and disables the LTE or NR measurement report reporting function. Accordingly, the network side cannot receive the LTE or NR measurement report sent by the UE side.

[00137] S5105: The network side sends a fourth signaling message to the RRC layer. The fourth signaling message is used to direct the RRC layer to release the radio resource occupied on the UE side when the LTE connection or the NR connection is configured to release the LTE connection or the NR connection on the UE side. Accordingly, the RRC layer receives the fourth signaling message.

[00138] S5106: The RRC layer releases the LTE connection or the NR connection on the UE side in accordance with the instruction of the fourth signaling message.

[00139] After releasing the LTE connection or NR connection on the network side, the network side may send a fourth signaling message to the RRC layer to instruct the RRC layer to release the radio resource occupied on the UE side when the LTE connection or NR connection is configured to release the LTE connection or NR connections on the UE side, that is, release on the UE side the connection between the UE and the 4G base station or the 5G base station on the network side.

[00140] In a real application, the fourth signaling message may be, in particular, the first RRC reconfiguration message used to instruct the RRC layer to release the radio resource, also called resource configuration information, occupied at the UE side, when an LTE connection or an NR connection is configured or established. Specifically, for example, the connection NR is released. The first RRC reconfiguration message carries a release field and is used to instruct the RRC layer to release the radio resource occupied on the UE side when an NR connection is configured, e.g. release the radio resource associated with the transmission functional layer such as NR PDCP, NR RLC, NR MAC and NR PHY. In particular, a configuration parameter such as a frequency and a cell ID that is associated when an NR connection is configured on the network side can be released.

[00141] In the actual application, when the LTE access network can meet the requirements of using the UE network in a low network speed usage scenario, the UE and the network side preferably release the NR connection to switch the dual LTE-NR connection to the LTE access network connection to realize transmission data over a single LTE connection. This will help you avoid problems such as wasteful use of network resources and high power consumption of devices when dual connected, as well as help save network resource and improve network efficiency.

[00142] For example, the NR connection is released. After the RRC layer receives the fourth signaling message (that is, the RRC reconfiguration message) sent by the network side, since the RRC layer of the UE specifically includes LTE RRC (abbreviated LRRC) and NR RRC (abbreviated NRRC), the fourth signaling message specifically used to instruct the NRRC layer to release the radio resource occupied by the NR connection on the UE side and not to release the radio resource belonging to the LRRC layer. Specifically, the network side may send the fourth signaling message to the LRRC, and the LRRC forwards the fourth signaling message to the NRRC, to release the NR connection on the UE side in response to the fourth signaling message; or the network side directly sends the fourth signaling message to the LRRC layer, so that the NRRC manages the release of the radio resource occupied by the UE side when an NR connection is set up.

[00143] Optionally, in response to the first RRC reconfiguration message, the RRC layer may send an appropriate RRC configuration response message to the network side to notify that the RRC layer is already releasing an LTE connection or an NR connection on the UE side.

[00144] S5107: The RRC layer may send a fifth signaling message to the NAS. The fifth signaling message is used to notify the NAS that the LTE connection or the NR connection on the UE side has already been released.

[00145] After the release of the LTE connection or the NR connection on the UE side, the RRC layer may send a fifth signaling message to the NAS. The fifth signaling message is used to notify the NAS that the radio resource occupied by the LTE connection or the NR connection on the UE side has already been released, that is, the LTE connection or the NR connection on the UE side has been released. That is, the UE and the network side may no longer communicate with each other via the released LTE or NR connection. The fifth signaling message may also be referred to as the third notification message to respectively notify that the LTE connection or the NR connection on the UE side has already been released.

[00146] In an actual application, the fifth signaling message also includes at least one indication flag bit used to direct the NAS to perform the corresponding functional operation. For detailed information about the indication flag bit, reference may be made to the corresponding descriptions in the above embodiments. This is not described in detail here. For example, the fifth signaling message carries an indication flag bit "0" used to indicate or notify that the RRC layer is already releasing the LTE connection on the UE side. The fifth signaling message carries an indication flag bit "1" used to indicate or notify that the RRC layer is already releasing the NR connection at the UE side. In this application, it is expressly not limited.

[00147] After the UE releases the communication connection of any of the access networks in the dual LTE-NR connection, if the UE is no longer in a low network speed use case (e.g., switches from a low network speed use case to a high network speed use case). network speed), the UE may re-establish communication with dual LTE-NR connection using the procedure steps of the method in FIG. 7. As shown in FIG. 7, the method includes the following implementation steps.

[00148] S5108: Upon detecting that the UE is not in a low network rate usage scenario, the UE AP sends a sixth signaling message to the NAS. The sixth signaling message is used to notify that the UE is not in a low network rate usage scenario and that the connection of any of the access networks (LTE or NR access network) that has already been released needs to be re-established or restored. Accordingly, the NAS receives the sixth signaling message.

[00149] In this application, there are many specific implementations in which the UE is not in a low network speed use case. For example, if the UE AP detects that the UE does not satisfy the above condition for determining a low network speed use scenario, it may be determined that the UE is not in a low network speed use scenario, or it may be directly considered that the UE is in a high network speed use scenario. network speed. For example, when the condition for determining that the UE is in a low network rate usage scenario is that the UE is in a screen-off state and the UE's data rate is less than or equal to a preset threshold, after the UE AP detects, that the UE switches from the screen-off state to the screen-on state, that is, the UE is in the screen-on state, it can be considered that the UE is not in a low network speed usage scenario.

[00150] In addition, the UE AP may send a sixth signaling message to the NAS. The sixth signaling message is used to notify that the UE is not currently in a low network rate usage scenario and it is necessary to re-establish the connection of any of the access networks in the already released dual LTE-NR connection, i.e., the corresponding LTE or NR connection. which is disabled in FIG. 5 needs to be restored. In the actual application, the fifth signaling message may also be referred to as the fourth notification message, and is used to notify that the UE is not in a low network speed use case, or is specifically used to notify a condition for determining that the UE is not in a low network speed use case. network speed, such as notification that the UE is in a screen-on state.

[00151] In particular, the sixth signaling message may also be a private command message, such as an AT command message; or a normal command message, such as the at^syscfgex command message, used to enable the NR connection and the link function (ie, NR connection re-establishment). When the sixth signaling message is an AT command message, the AP also sends an AT command message to the NAS via the AT command interface to re-establish an LTE connection or an NR connection. In this case, the UE does not detect the access network used for communication by the UE, and the icon displayed on the interface of the UE does not change.

[00152] In contrast, when the sixth signaling message is a normal signaling message, the AP sends a normal signaling message to the NAS to re-establish an LTE connection or an NR connection. For example, the at^syscfgex command message can be used to re-establish the NR connection and restart or restore the NR connection and communication function, i.e., restoring the 5G communication function. In this case, the icon displayed on the UE interface changes and the user can observe the displayed icon to learn about the access network or wireless connection and the communication technology used by the UE for the current communication, such as LTE-NR.

[00153] It should be noted that in both the private command message and the normal command message, the indication flag bit may be used to indicate to release or re-establish an LTE/NR connection. Alternatively, the UE may indicate, using various command messages (ie, signaling messages), to release the LTE/NR connection and re-establish the LTE/NR connection. For example, when the private command message or the normal command message carries the "030201" bits of the indication flag, the private command message or the normal command message is used to indicate to release the NR connection. In contrast, when the private command message or the normal command message carries the "08030201" bits of the indication flag, the private command message or the normal command message is used to indicate to re-establish or restore the NR connection. Alternatively, when the private command message or regular command message is a CLOSE command message, the private command message or regular command message is used to indicate to release the NR connection. In contrast, when the private command message or the regular command message is an OPEN command message, the private command message or the regular command message is used to indicate to re-establish the NR connection.

[00154] S5109: The NAS sends a seventh signaling message to the RRC layer. The seventh signaling message is used to instruct the RRC layer to communicate using an LTE connection or an NR connection and start measuring LTE or NR. Accordingly, the RRC layer receives the seventh signaling message.

[00155] S5110: The RRC layer allows communication using an LTE connection or an NR connection and starts measuring LTE or NR according to the instruction of the seventh signaling message.

[00156] In an actual application, the seventh signaling message may also be referred to as the fifth notification message and includes at least one bit of an indication flag used to direct the RRC layer to perform an appropriate functional operation, for example, to tell the RRC layer to re-establish communication using an LTE connection or a connection NR and restart LTE or NR measurement. For steps S5108 to S5110, reference can be made respectively to the descriptions of the related contents of steps S5101 to S5103 in FIG. 5, and the details are not repeated here.

[00157] S5111: The RRC layer communicates with the network side to instruct to reconfigure the LTE connection or the NR connection on the network side. For example, when an LTE or NR cell is detected, the RRC layer sends an LTE or NR measurement report to the network side. Accordingly, the network side receives the LTE or NR measurement report.

[00158] In this application, the RRC layer may send a sixth notification message (or signaling message) to the network side to instruct the network side to reconfigure the radio resource to be occupied by the LTE connection or the NR connection on the network side to re-establish the LTE connection or the connection NR on the network side. In an actual application, the sixth notification message may be, in particular, an LTE or NR measurement report. After starting the LTE or NR measurement, the RRC layer can perform the UE cell measurement and report the corresponding measurement report. Specifically, in this application, when an LTE or NR cell is detected, the RRC layer may send an LTE or NR measurement report to the network side (which is specifically a 4G base station or a 5G base station on the network side). Accordingly, after receiving the measurement report, the network side can know that the UE and the network side support an LTE connection or an NR connection. The network side may reconfigure the radio resource to be occupied by the LTE connection or the network side NR connection, for example, reconfigure the radio resource that is associated with the transmission functional layer such as NR PDCP, NR RLC, NR MAC and NR PHY and is to be used by the LTE connection, or NR connection for network side communication, to re-establish an LTE connection or a network side NR connection.

[00159] S5112: The network side sends an eighth signaling message to the RRC layer. The eighth signaling message is used to instruct the RRC layer to re-establish an LTE connection or an NR connection on the UE side. Accordingly, the RRC layer receives the eighth signaling message.

[00160] In addition, the network side may send an eighth signaling message to the RRC layer to instruct the RRC layer to re-establish an LTE connection or an NR connection on the UE side. In a real application, the eighth signaling message may in particular be a second RRC reconfiguration message used to instruct the RRC layer to reconfigure the radio resource to be occupied by the LTE connection or the NR connection on the UE side. In particular, NR connection re-establishment is used as an example. The second RRC reconfiguration message carries the spCellConfig configuration field. The field includes the NR configuration parameter. The NR configuration parameter is specifically a parameter related to a radio resource to be occupied by the NR connection on the UE side, such as a radio resource configuration parameter associated with a transmission functional layer such as PDCP NR, RLC NR, MAC NR, and PHY NR. Specifically, when the NR PHY is reconfigured, the NR configuration parameter includes a parameter such as a downlink receiving channel, a frequency, and a cell ID.

[00161] S5113: The RRC layer re-establishes the LTE connection or the NR connection on the UE side according to the instruction of the eighth signaling message.

[00162] After receiving the eighth signaling message (which may be, in particular, the second RRC reconfiguration message) sent by the network side, the RRC layer may reconfigure, in accordance with the instruction of the eighth signaling message, the radio resource to be occupied on the UE side when the LTE connection or the NR connection is configured to re-establish the LTE connection or the NR connection on the UE side. NR connection re-establishment is used as an example. The RRC layer may reconfigure, according to the instruction of the second RRC reconfiguration message, the radio resource that is associated with the transmission functional layer, such as NR PDCP, NR RLC, NR MAC, and NR PHY, and must be occupied by the NR connection at the UE side, to re-establish the NR connection. on the UE side. Thus, the UE may subsequently use the NR connection to communicate with the network side (which may in particular be a 5G base station on the network side).

[00163] Optionally, after re-establishing an LTE connection or an NR connection at the UE side in response to the second RRC reconfiguration message, the RRC layer may send an appropriate RRC reconfiguration response message to the network side to notify that the RRC layer is already re-establishing the LTE connection or an NR connection on the UE side.

[00164] S5114: The RRC layer sends a ninth signaling message to the NAS. The ninth signaling message is used to notify that the RRC layer is already re-establishing an LTE connection or an NR connection on the UE side.

[00165] After re-establishing an LTE connection or an NR connection on the UE side, the RRC layer may send a ninth signaling message (which may also be defined as a fourth notification message) to the NAS to notify that the RRC layer is already re-establishing an LTE connection or connection NR on the UE side. Subsequently, the UE and the network side can communicate using dual LTE-NR connection.

[00166] In implementing embodiments of the present invention, the signaling message may be used to communicate with the network side in a low network speed use case, any (such as an LTE or NR access network) of the access networks in LTE-NR dual connectivity may be released, and the LTE or NR measurement report function is disabled. This can reduce the additional power consumption of communications using an LTE connection or an NR connection, thereby reducing device power consumption and improving network utilization.

[00167] FIG. 8 is a schematic flowchart of another network connection processing method according to an embodiment of the present invention. As shown in FIG. 8, the method includes the following implementation steps.

[00168] S8101: Upon detecting that the UE is in a low network rate usage scenario, the UE AP sends a tenth signaling message to the NAS UE. The tenth signaling message is used to notify that the UE is in a low network rate usage scenario, and the connection of any of the access networks in the dual LTE-NR connection can be released. Accordingly, the NAS receives the tenth signaling message.

[00169] S8102: The NAS sends an eleventh signaling message to the RRC layer. The eleventh signaling message is used to indicate to the RRC layer not to communicate using the LTE connection or the NR connection and stop the LTE or NR measurement. Accordingly, the RRC layer receives the eleventh signaling message.

[00170] S8103: The RRC layer disconnects communication using the LTE connection or the NR connection and stops the LTE or NR measurement in accordance with the instruction of the eleventh signaling message. For steps S8101 to S8103, reference may be made to the related descriptions of steps S5101 to S5103, respectively, and the details will not be repeated here.

[00171] S8104: The NAS sends a twelfth signaling message to the network side to indicate to the network side not to communicate using an LTE connection or an NR connection. Accordingly, the network side receives the twelfth signaling message.

[00172] In this application, after determining according to the tenth signaling message that the LTE connection or the NR connection needs to be released, the NAS may send the twelfth signaling message to the network side (which may be, in particular, the base station on the network side) to respectively tell the 4G/5G base station on the network side not to communicate using an LTE connection or an NR connection. Accordingly, after receiving the twelfth signaling message, the network side can release the radio resource occupied by the LTE connection or the NR connection on the network side. For example, during the release of the NR connection after receiving the twelfth signaling message, the 5G base station on the network side may release the radio resource occupied by the NR connection on the network side. In particular, the 5G base station can release the radio resource associated with the transmission functional layer such as NR PDCP, NR RLC, NR MAC and NR PHY to release the NR connection on the network side, that is, release the connection between the UE and the 5G base station. In another example, during the release of the LTE connection after receiving the twelfth signaling message, the 4G base station on the network side may release the radio resource occupied by the LTE connection on the network side. Specifically, the 4G base station can release the radio resource associated with the transmission function layer such as LTE PDCP, LTE RLC, LTE MAC, and LTE PHY to release the LTE connection on the network side, that is, release the connection between the UE and the 4G base station.

[00173] In an actual application, the twelfth signaling message may be the first tracking area update (TAU) message in particular. The first TAU message carries a parameter configured in the system to indicate to the network side not to support the communication function of an LTE connection or an NR connection. For example, the first TAU message carries an indication parameter, and the indication parameter is used to indicate whether to currently support an NR connection in a dual LTE-NR connection. In a real application, an indication parameter may be represented by a specified character, a specified numeric value, or a specified character string. For example, when the indication parameter is "1", it means that the NR connection communication function is currently supported. On the contrary, when the indication parameter is "0", it means that the NR connection link function is not currently supported.

[00174] S8105: The network side sends the thirteenth signaling message to the RRC layer. The thirteenth signaling message is used to instruct the RRC layer to release the LTE connection or the NR connection on the UE side. Accordingly, the RRC layer receives the thirteenth signaling message.

[00175] S8106: The RRC layer releases the LTE connection or the NR connection on the UE side in accordance with the instruction of the thirteenth signaling message.

[00176] In an actual application, the thirteenth signaling message may be an RRC re-establishment message in particular, and is used to direct the RRC layer to release the radio resource occupied on the UE side when the LTE connection or NR connection is configured to release the LTE connection or NR connection on UE side. Optionally, after releasing the LTE connection or the NR connection of the UE, the RRC layer may also send a signaling message to the NAS to notify that the RRC layer is already releasing the LTE connection or the NR connection of the UE. For steps S8105 and S8106, reference can be made to the detailed descriptions of related content S5105 and S5106 in FIG. 5, and the details are not repeated here. For content not described in this embodiment of this application, reference may be made to the corresponding detailed descriptions in the embodiment of FIG. 5, and the details are not repeated here.

[00177] Optionally, after the UE releases the communication connection of any of the access networks in LTE-NR dual connectivity, if the UE is no longer in a low network rate usage scenario, the UE may re-establish the LTE-NR dual connectivity between the UE and network side using the procedure steps of the method shown in FIG. 9. As shown in FIG. 9, the method may specifically include the following implementation steps.

[00178] S8107: Upon detecting that the UE is not in a low network rate usage scenario, the UE AP sends a fourteenth signaling message to the NAS. The fourteenth signaling message is used to notify that the UE is not in a low network rate usage scenario and the connection of any of the already released access networks needs to be re-established or re-established (ie, an LTE connection or an NR connection is restored). Accordingly, the NAS receives the fourteenth signaling message.

[00179] S8108: The NAS sends the fifteenth signaling message to the RRC layer. The fifteenth signaling message is used to instruct the RRC layer to communicate using an LTE connection or an NR connection and start measuring LTE or NR. Accordingly, the RRC layer receives the fifteenth signaling message.

[00180] S8109: The RRC layer disconnects communication using the LTE connection or the NR connection and stops the LTE or NR measurement in accordance with the instruction of the fifteenth signaling message. For steps S8107 to S8109, reference can be respectively made to descriptions of the related contents of steps S5108 to S5110 in FIG. 7, and the details are not repeated here.

[00181] S8110: The NAS sends the sixteenth signaling message to the network side. The sixteenth signaling message is used to direct the network side to communicate using an LTE connection or an NR connection. Accordingly, the network side receives the sixteenth signaling message.

[00182] In an actual application, the sixteenth signaling message may be, in particular, the second TAU message, and the second TAU message is used to indicate the network side to currently support the communication function of the LTE connection or the NR connection, that is, the UE and the network side can communicate with each other. another using an LTE connection or an NR connection. Accordingly, after receiving the second TAU message, the network side can know that the network side supports an LTE connection or an NR connection. In addition, the network side can reconfigure the radio resource to be occupied by the LTE connection or the NR connection on the network side, for example, reconfigure the radio resource that is associated with the transmission functional layer such as NR PDCP, NR RLC , NR MAC and NR PHY and should be used. an LTE connection or an NR connection for network-side communication, to re-establish an LTE connection or a network-side NR connection.

[00183] S8111: The network side sends the seventeenth signaling message to the RRC layer. The seventeenth signaling message is used to instruct the RRC layer to re-establish an LTE connection or an NR connection on the UE side. Accordingly, the RRC layer receives the seventeenth signaling message.

[00184] S8112: The RRC layer re-establishes the LTE connection or the NR connection on the UE side according to the instruction of the seventeenth signaling message.

[00185] In an actual application, the seventeenth signaling message may be specifically an RRC reconfiguration message and is used to instruct the RRC layer to reconfigure the radio resource to be occupied by the LTE connection or the NR connection on the UE side in order to reconfigure the LTE connection or the NR connection on the UE side . For content not described in this embodiment of this application, reference may be made to the corresponding detailed descriptions in the embodiment of FIG. 7, and the details are not repeated here.

[00186] In implementing embodiments of the present invention, the TAU message may be used to negotiate and interact with the network side in a low network speed use case, and the communication function of any of them (e.g., LTE or NR access network) of access networks in LTE-NR is dual connection is disabled. This can reduce the device's power consumption and improve network efficiency.

[00187] Based on the respective descriptions of the embodiments in FIG. 1 - fig. 9 below describes related products such as chip, transceiver unit, machine and device that are applicable to this application. Fig. 10 is a schematic structural diagram of a system chip according to an embodiment of the present invention. The system chip 1000 shown in FIG. 10 includes an application processor 1002 (application processor, AP) and a baseband processor 1004 (baseband processor, BP).

[00188] Application Processor is short for Multimedia Application Processor (MAP) and is a very large integrated circuit that extends audio and video functions and dedicated interfaces based on a low power CPU CPU. The application processor is mainly divided into three types: general purpose processor, multimedia processor, and single media processor. The general purpose processor not only performs the function of an application multimedia processor, but can also run a complex operating system like Linux. A media processor is a processor that processes more than two types of media, such as images, sound, video, and 3D graphics. A dedicated media processor is a processor that processes one type of media and is typically configured to process images or sound only.

[00189] The baseband processor is an important component of the system chip, is equivalent to the protocol processor, is responsible for processing and storing data, and mainly includes blocks such as a digital signal processor (DSP), a microcontroller unit (micro controller unit , MCU) and memory (such as flash memory or flash memory). Accordingly, the baseband processor is mainly responsible for baseband encoding or decoding, audio encoding, voice encoding, and the like. At present, the baseband processor not only supports a variety of communication standards (eg, GSM, LTE, and CDMA), but also provides a multimedia function and provides a communication interface associated with a multimedia display, an image sensor, and an audio device.

[00190] In an actual application, the application processor AP supports the execution of software, where the software typically includes an operating system, a user interface, an application program, and the like. The baseband processor BP can be considered as a wireless modem module responsible for coordinating and controlling communication between the BP and the base station and data exchange between the BP and the AP. The baseband processor supports running software, the software including baseband modem communication and control software, and the like.

[00191] The application processor AP and the baseband processor BP may communicate with each other using a pre-established interface technology. Interface technology can be configured on the system, for example, includes but is not limited to serial peripheral interface (SPI), universal asynchronous receiver/transmitter (UART), universal serial bus (universal serial bus , USB), general purpose input/output (GPIO), etc. In particular, the application processor and the baseband processor may communicate with each other in a control command message format to perform functions such as call, SMS message, and mobile network access. The control command may include a normal AT (attention) command, a mobile broadband interface model (MBIM) command, or other protocol commands that support transmission between the AP and the BP.

[00192] Optionally, as shown in FIG. 10, the baseband processor BP supports the execution of protocol software related to the non-access NAS layer and the radio resource control RRC layer. In a real application, the application processor AP communicates with the NAS and the RRC layer in the baseband processor BP. For example, the AP's application processor in this application can send an appropriate signaling message to the NAS using a normal AT command to notify the NAS of information such as application status or device screen status that the AP is currently aware of.

[00193] Optionally, the NAS in the baseband BP processor supports the implementation of the method steps performed by the NAS in any of the method embodiments of FIG. 5 - fig. 9 and/or other technical content described in this specification. The RRC layer in the baseband BP processor supports the implementation of the method steps performed by the RRC layer in any of the method embodiments of FIG. 5 - fig. 9 and/or other technical content described in this specification.

[00194] In an actual application, the system chip 1000 is typically a very complex system chip, such as an SOC chip. In actual deployment, the system chip 1000 may be deployed within the device, or may be deployed external to the device and control the device via a wired or wireless connection. The device includes, but is not limited to, a user equipment UE or a terminal device, for example, may, in particular, include a smartphone, a mobile Internet device (MID), a wearable intelligent device, or other device that communicates with network. In particular, when the system chip 1000 is deployed within the user equipment, the system chip 1000 is directly configured to implement the method in any of the method embodiments of FIG. 5 - fig. 9. When the system chip 1000 is deployed outside the user equipment, communication is maintained between the system chip 1000 and the user equipment via a wired or wireless connection, and the user equipment calls or controls the system chip 1000 to implement the method described in any of the method embodiments of FIG. . 5 - fig. 9.

[00195] In implementing this embodiment of the present invention, it can solve problems such as high device power consumption and wastage of network resources in communication using LTE-NR dual connection technology in a low network speed scenario in conventional technologies.

[00196] Referring to FIG. 11, an embodiment of the present invention provides a wireless transceiver unit 1100 including a non-access NAS layer entity 1102 and a radio resource control RRC entity 1104. The NAS entity 1102 is configured to perform the respective steps performed by the NAS in any of the method embodiments of FIG. 5 - fig. 9, or the technical content described in this specification. The RRC entity 1104 is configured to perform the appropriate steps performed by the RRC layer in any of the method embodiments of FIG. 5 - fig. 9, or the technical content described in this specification.

[00197] For example, the NAS entity 1102 is configured to: after receiving the first notification message sent by the application side of the user equipment UE, send an NR disconnect message to the RRC entity. The first notification message is used to notify that the UE is in a screen-off state and that the data packet size to be received or sent by the UE is less than or equal to the first threshold. The NR release message is used to direct the RRC entity to release the radio resource occupied on the UE side when the NR connection is configured to release the NR connection on the UE side.

[00198] The RRC entity 1104 is configured to release, according to the NR release message instruction, the radio resource occupied on the UE side when the NR connection is configured to release the NR connection on the UE side.

[00199] In some possible embodiments, the RRC entity 1104 is further configured to send a secondary cell group SCG link failure message to the network side. The SCG Link Reject message is used to indicate to release the SCG radio resource that is occupied by the NR connection on the network side in order to release the NR connection on the network side. The UE and the network side establish an NR connection interconnection via the SCG channel.

[00200] In some possible embodiments, the RRC entity 1104 is further configured to send a second notification message to the NAS entity. The second notification message is used to notify that the NR connection on the UE side has already been released.

[00201] In some possible embodiments, the RRC entity 1104 is further configured to send a first tracking area update TAU message to the network side. The first TAU message is used to indicate to the network side not to communicate on the NR connection.

[00202] In some possible embodiments, the NAS entity 1102 is further configured to: after receiving the third notification message sent by the application side of the UE, send an NR reestablishment message to the RRC entity. The third notification message is used to notify that the UE is in a screen-on state. The NR re-establishment message is used to direct the RRC entity to reconfigure the radio resource to be occupied by the NR connection at the UE side to re-establish the NR connection at the UE side.

[00203] The RRC entity 1104 is further configured to reconfigure, in accordance with the NR reestablishment message instruction, the radio resource to be occupied by the NR connection on the UE side to reestablish the NR connection on the UE side.

[00204] In some possible embodiments, the RRC entity 1104 is further configured to send a fourth notification message to the NAS entity. The fourth notification message is used to notify that the UE-side NR connection has already been re-established.

[00205] In some possible embodiments, the RRC entity 1104 is further configured to send a secondary cell group SCG channel success message to the network side. The secondary cell group SCG success message is used to indicate to reconfigure the SCG radio resource that is occupied by the network side NR connection to re-establish the network side NR connection.

[00206] In some possible embodiments, the NAS entity 1102 is further configured to send a second tracking area update TAU message to the network side. The second TAU message is used to instruct the network side to communicate on the NR connection.

[00207] FIG. 12 is a schematic structural diagram of an exemplary UE. UE 100 may also be referred to as a network connection processor. UE 100 shown in FIG. 12 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charge control module 140, a power management unit 141, a battery 142, an antenna 1, an antenna 2, a module 150 mobile communication module 160 wireless and audio module 170, speaker 170A, handset 170B, microphone 170C, headset jack 170D, sensor module 180, key 190, motor 191, indicator 192, camera 193, display screen 194, map interface 195 Subscriber Identity Module (Subscriber Identity Module, SIM) and the like. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an atmospheric pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, an optical proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, and a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

[00208] It can be understood that the exemplary structure in this embodiment of the present invention is not a specific limitation for UE 100. In some other embodiments of the present application, UE 100 may include more or fewer components than shown in the drawing, or some components may be combined, or some components may be separated, or components may be arranged differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[00209] Processor 110 may include one or more processors. For example, processor 110 may include an application processor (AP), a baseband processor (which may also be referred to as a modem processor), a graphics processing unit (GPU), an image signal processor, ISP), controller, memory, video codec, digital signal processor (DSP), baseband processor, and/or neural network processing unit (NPU). The various processing units may be independent components or may be integrated into one or more processors.

[00210] The controller may be a control center and a command center of the user equipment 100. The controller may generate an operation control signal in accordance with the command operation code and the time sequence signal, and control the receipt and execution of commands.

[00211] Processor 110 may also include memory configured to store instructions and data. In some embodiments, the memory in processor 110 is a cache. Memory may store instructions or data that have been recently used or cycled by processor 110. If processor 110 needs to reuse instructions or data, instructions or data may be called directly from memory to avoid re-access and reduce processor 110 latency, thereby increasing system efficiency.

[00212] In some embodiments, processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous transceiver interface (universal asynchronous receiver/transmitter, UART), mobile industry processor interface (MIPI), general-purpose input/output (GPIO), a subscriber identity module interface, SIM) and/or universal serial bus (USB) interface, etc.

[00213] The I2C interface is a bidirectional synchronous serial bus and includes a data line (serial data line, SDA) and a clock line (serial clock line, SCL). In some embodiments, processor 110 may include multiple I2C buses. The processor 110 may be associated with the touch sensor 180K, charger, flash, camera 193, or the like. through various I2C bus interfaces. For example, processor 110 may be coupled to touch sensor 180K via an I2C interface such that processor 110 and touch sensor 180K communicate with each other via an I2C bus interface to perform the touch function of user equipment 100.

[00214] The I2S interface may be configured to perform audio communications. In some embodiments, processor 110 may include multiple I2S bus groups. The processor 110 may be connected to the audio module 170 via the I2S bus to implement communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit an audio signal to the wireless module 160 via the I2S interface to perform a call answering function via a Bluetooth headset.

[00215] The PCM interface can also be configured to perform audio communication, sampling, quantization, and coding of the analog signal. In some embodiments, audio module 170 may be coupled to wireless module 160 via a PCM bus interface. In some embodiments, the audio module 170 may also transmit an audio signal to the wireless communication module 160 via the PCM interface to perform a call answering function via a Bluetooth headset. Both the I2S interface and the PCM interface can be configured to perform audio communications.

[00216] The UART interface is a universal serial data bus and is configured to perform asynchronous communication. The bus may be a bi-directional communication bus. The bus converts the data to be transferred between serial and parallel communication. In some embodiments, the implementation of the UART interface is usually configured to connect the processor 110 to the module 160 wireless. For example, the processor 110 communicates with the Bluetooth module in the wireless module 160 via the UART interface to perform the Bluetooth function. In some embodiments, the audio module 170 may send an audio signal to the wireless communication module 160 via a UART interface to perform a music playback function through a Bluetooth headset.

[00217] MIPI can be configured to connect the processor 110 to a peripheral device such as a display screen 194 or a camera 193. MIPI includes a camera serial interface (CSI), a display serial interface (DSI), and etc. In some embodiments, the processor 110 and the camera 193 communicate with each other via the CSI to perform the photographing function of the user equipment 100. The processor 110 and the display screen 194 communicate with each other via the DSI to perform the display function of the user equipment 100.

[00218] The GPIO interface can be configured using software. The GPIO interface can be configured as a control signal or a data signal. In some embodiments, the GPIO interface may be configured to connect processor 110 to camera 193, display screen 194, wireless module 160, audio module 170, sensor module 180, and the like. The GPIO interface can also be configured as I2C interface, I2S interface, UART interface, MIPI, etc.

[00219] The USB interface 130 is an interface that conforms to the specification of the USB standard, and may be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like, among others. The USB interface 130 may be configured to connect to a charger to charge the user equipment 100, and may also be configured to transfer data between the user equipment 100 and peripheral devices. The USB interface 130 can also be configured to connect to a headset to play audio through the headset. The interface may also be configured to connect to another electronic device such as an AR device.

[00220] It can be understood that the interface connection relationship between modules in this embodiment of the present invention is merely an example for description and does not constitute a structural limitation for the user equipment 100. In some other embodiments of the present application, the user equipment 100 may also use various interface connection methods. in the above embodiments, or a combination of a plurality of interface connection methods.

[00221] The charging control module 140 is configured to receive a charging input signal from a charger. The charger can be wireless or wired. In some wired charging embodiments, charge control module 140 may receive wired charger charging input via USB interface 130. In some wireless charging embodiments, charge control module 140 may receive wireless charging input via the wireless charging coil of user equipment 100. While charge control module 140 is charging battery 142, power control module 141 may also supply power to an electronic device.

[00222] Power management module 141 is configured to connect to battery 142, charge control module 140, and processor 110. Power management module 141 receives input from battery 142 and/or charge control module 140 and supplies power to processor 110, internal memory 121, external memory, display screen 194, camera 193, wireless communication module. 160 and the like. The power management module 141 can also be configured to monitor parameters such as battery capacity, battery cycles, and battery health status (power leakage and impedance). In some other embodiments, power management module 141 may also be located in processor 110. In some other embodiments, power management module 141 and charge control module 140 may also be located in the same device.

[00223] The wireless communication function of UE 100 may be implemented using antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, modem processor, baseband processor, and the like.

[00224] Antenna 1 and antenna 2 are configured to transmit and receive an electromagnetic wave signal. Each UE 100 antenna may be configured to cover one or more communication frequency bands. Different antennas can also be multiplexed to improve antenna utilization. For example, antenna 1 may be multiplexed as a wireless LAN diversity antenna. In some other embodiments, the antenna may be used in conjunction with a tuning switch.

[00225] Mobile communication module 150 may provide a wireless communication solution such as 2G/3G/4G/5G applied to UE 100. Mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication unit 150 may receive the electromagnetic wave through the antenna 1, perform processing such as filtering and amplifying the received electromagnetic wave, and transmit the processed electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may further amplify the signal modulated by the modem processor and convert the signal into an electromagnetic wave for radiation through the antenna 1. In some embodiments, at least some functional modules of the mobile communication module 150 may be located in the processor 110. In some embodiments, implementation at least some of the functional modules of the mobile communication module 150 may be configured in the same device as at least some of the modules of the processor 110.

[00226] The modem processor may include a modulator and a demodulator. The modulator is configured to modulate the sent low frequency baseband signal into a mid-high frequency signal. The demodulator is configured to demodulate the received electromagnetic wave signal into a low frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transmitted to the application processor. The application processor outputs an audio signal through an audio device (which is not limited to speaker 170A, handset 170B, etc.) or displays an image or video through display screen 194. In some embodiments, the modem processor may be an independent device. In some other embodiments, the modem processor may be independent of the processor 110, and the modem processor and the mobile communications module 150 or other functional module may be located in the same component.

[00227] The wireless communication module 160 may provide a wireless communication solution applied to the UE 100, such as wireless local area networks (WLAN) (e.g., Wireless Fidelity, Wi-Fi), Bluetooth ( BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared (infrared, IR). The wireless communication module 160 may be one or more components into which at least one communication processing module is integrated. The wireless communication module 160 receives the electromagnetic wave through the antenna 2, performs frequency modulation and filtering of the electromagnetic wave signal, and sends the processed signal to the processor 110. Alternatively, the wireless communication module 160 may receive the signal to be sent from the processor 110, perform frequency modulation, and amplification for the signal to be sent, and convert the signal into an electromagnetic wave for radiation with antenna 2.

[00228] In some embodiments, antenna 1 and mobile module 150 of UE 100 are coupled, and antenna 2 and wireless module 160 of UE 100 are coupled so that UE 100 can communicate with a network and another device. using wireless technology. The wireless communication technology may include LTE-NR dual connection technology, LTE single connection technology, and the like. For example, the wireless communication technology may specifically include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access, CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long-term development (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, IR technology and/or the like. GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (quasi-zenith satellite system, QZSS) and/or satellite differential correction systems (satellite based augmentation systems, SBAS).

[00229] UE 100 implements a display function using a graphics processor, a display screen 194, an application processor, and the like. The graphics processor is an image processing microprocessor connected to the display screen 194 and the application processor. The GPU is configured to perform mathematical and geometric calculations and render graphics. The processor 110 may include one or more graphics processors and execute software instructions to generate or modify displayed information.

[00230] The display screen 194 is configured to display an image, video, or the like. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light emitting diode (AMOLED), a flexible LED (flex light -emitting diode, FLED), Miniled, Micro LED, Micro-OLED, quantum dot light emitting diodes (QLED) and the like. In some embodiments, UE 100 may include one or N display screens 194. N is a positive integer greater than 1.

[00231] UE 100 may implement a photographing function using an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

[00232] The ISP is configured to process the data returned by the camera 193. For example, the shutter is released when photographing. Light is transmitted to the photosensitive element of the camera through a lens, and the optical signal is converted into an electrical signal. The photosensitive element of the camera transmits an electrical signal to the ISP for processing, and therefore the electrical signal is converted into an image visible to the naked eye. The ISP can also optimize the noise point, brightness and skin tone algorithms. The ISP can also optimize parameters such as the exposure and color temperature of the photographed scene. In some embodiments, the ISP may be located in chamber 193.

[00233] The camera 193 is configured to capture a still image or video. An optical image of an object is formed through a lens and projected onto a photosensitive element. The photosensitive element can be a charge coupled device (CCD) or a phototransistor of a complementary metal-oxide-semiconductor (CMOS) structure. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to convert the electrical signal into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into a standard image signal in RGB and YUV formats. In some embodiments, UE 100 may include one or N cameras 193 and N is a positive integer greater than 1.

[00234] The digital signal processor is configured to process a digital signal and may further process another digital signal in addition to the digital image signal. For example, when UE 100 performs frequency selection, the digital signal processor is configured to perform a Fourier transform or the like. on frequency energy.

[00235] The video codec is configured to compress or decompress digital video. UE 100 may support one or more video codecs. Thus, UE 100 can play back or record video in a variety of coding formats, such as moving picture experts group (MPEG) 1, MPEG 2, MPEG 3, and MPEG 4.

[00236] An NPU is a neural-network (NN) computing processor that quickly processes input information by referring to the structure of a biological neural network, such as the transmission mode between neurons in the human brain, and can further continuously perform self-learning. The NPU may be used to implement an application such as intelligent recognition of the UE 100, such as image recognition, face recognition, voice recognition, and text understanding.

[00237] The external memory interface 120 can be configured to connect to an external memory card, such as a micro SD card, to expand the storage capabilities of the UE 100. The external memory card communicates with the processor 110 via the external memory interface 120 to implement a data storage function, such as saving a file such as music or video on an external memory card.

[00238] The internal memory 121 may be configured to store computer executable program code, and the executable program code includes an instruction. The processor 110 executes an instruction stored in the internal memory 121 to execute various functional applications and data processing of the UE 100. The internal memory 121 may include a program storage area and a data storage area. The program storage area may store an operating system, an application required for at least one function (for example, a voice playback function or a picture playback function), and the like. The data storage area may store data (eg, audio data and address book) and the like created by using the UE 100. In addition, the internal memory 121 may include a high-speed random access memory, or may include a non-volatile memory, such as at least one magnetic disk storage device, flash memory, or universal flash storage (UFS).

[00239] UE 100 may implement an audio function such as playing or recording music using audio module 170, speaker 170A, handset 170B, microphone 170C, headset jack 170D, application processor, and the like.

[00240] The audio module 170 is configured to convert digital audio information to an analog audio output signal, and is further configured to convert an analog audio input to a digital audio signal. The audio module 170 may be further configured to encode and decode the audio signal. In some embodiments, audio module 170 may be located in processor 110, or some functional modules of audio module 170 may be located in processor 110.

[00241] Loudspeaker 170A, also referred to as a "horn speaker", is configured to convert an audio electrical signal into an audio signal. UE 100 may be used to listen to music or answer a call hands-free using speaker 170A.

[00242] Handset 170B, also referred to as a "handset", is configured to convert an audio electrical signal into an audio signal. When the UE 100 is used to answer a call or receive voice information, the handset 170B may be brought close to the human ear to receive voice information.

[00243] The microphone 170C is configured to convert an audio signal into an electrical signal. When making a call or sending voice information, the user may speak while approaching the microphone 170C to input an audio signal into the microphone 170C. At least one microphone 170C may be located in UE 100. In some other embodiments, two microphones 170C may be located in UE 100 to collect the audio signal and implement the noise canceling function. In some other embodiments, three, four, or more microphones 170C may alternatively be placed in UE 100 for audio signal collection, noise reduction, audio source recognition, directional recording, and the like.

[00244] The headset connector 170D is configured to connect to a wired headset. The headset connector 170D may be a USB interface 130 or may be a standard 3.5 mm open mobile terminal platform (OMTP) or cellular telecommunications industry association of the USA (CTIA) interface. standard interface.

[00245] The pressure sensor 180A is configured to sense a pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, pressure sensor 180A may be located on display screen 194. There are many types of pressure sensors 180A, such as a resistive pressure sensor, an inductive pressure sensor, and a capacitive pressure sensor. The capacitive pressure sensor may include at least two parallel plates of conductive materials. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. UE 100 determines the force of pressure based on the capacitance change. When a touch operation is performed on the display screen 194, the UE 100 determines the strength of the touch operation using the pressure sensor 180A. UE 100 may further calculate the touch position based on the detection signal of the pressure sensor 180A. In some embodiments, touch operations that are performed at the same touch position but have different touch strengths may correspond to different operating instructions. For example, when a touch operation whose touch operation strength is less than the first pressure threshold is performed on the SMS message application icon, the SMS message checking instruction is executed. When a touch operation whose touch strength is greater than or equal to the first pressure threshold is performed on the SMS message application icon, an instruction to create a new SMS message is executed.

[00246] Gyro sensor 180B may be configured to determine the movement position of UE 100. In some embodiments, the angular velocity of UE 100 about three axes (i.e., x, y, and z axes) may be determined using gyro sensor 180B. The gyro sensor 180B can be used to stabilize the image during photography. For example, when the shutter button is pressed, the gyro sensor 180B detects the angle at which the UE 100 oscillates and calculates, based on the angle, the distance that the lens module must compensate and allows the lens to eliminate the shake. UE 100 by reverse movement, thereby realizing image stabilization. The gyro sensor 180B can also be used in navigation and motion detection game scenarios.

[00247] The atmospheric pressure sensor 180C is configured to measure atmospheric pressure. In some embodiments, UE 100 calculates altitude using the barometric pressure value measured by barometric pressure sensor 180C to assist in positioning and navigation.

[00248] The magnetic sensor 180D includes a Hall effect sensor. The UE 100 can detect the opening and closing of the flip leather case using the magnetic sensor 180D. In some embodiments, when UE 100 is a flip phone, UE 100 may detect flip cover opening and closing based on magnetic sensor 180D. In addition, based on the detected open or close state of the leather case or the detected open or close state of the flip cover, a function such as automatic release of the flip cover is set.

[00249] The acceleration sensor 180E may determine the acceleration value of the UE 100 in each direction (typically three axes). When the head-mounted UE 100 is stationary, the magnitude and direction of gravity can be determined. The acceleration sensor can be optionally configured to sense the position of the electronic device and can be used in applications such as landscape/portrait switching and pedometer.

[00250] The distance sensor 180F is configured to measure distance. UE 100 can measure distance via infrared or laser. In some embodiments, in a photography scenario, UE 100 may measure distance with distance sensor 180F to realize fast focusing.

[00251] The optical proximity sensor 180G may include, for example, a light emitting diode (LED) and an optical detector such as a photodiode. The light emitting diode may be an infrared light emitting diode. The UE 100 can emit infrared light using an LED. UE 100 detects infrared light reflected from a nearby object using a photodiode. Upon detecting sufficient reflected light, UE 100 may determine that there is an object near UE 100. Upon detecting sufficient reflected light, UE 100 may determine that there is an object near UE 100. The UE 100 can detect, using the optical proximity sensor 180G, that the user holds the UE 100 close to the ear for a call, so that automatic screen off is implemented to achieve power savings. The 180G optical proximity sensor can be optionally configured to automatically unlock and lock the screen in leather case mode and pocket mode.

[00252] The ambient light sensor 180L is configured to detect ambient light brightness. UE 100 may adaptively adjust the brightness of the display screen 194 in accordance with the perceived brightness of the ambient light. The ambient light sensor 180L can be further configured to automatically adjust the white balance during still photography. The ambient light sensor 180L may further cooperate with the optical proximity sensor 180G to determine whether the UE 100 is in a pocket to prevent accidental touching.

[00253] The fingerprint sensor 180H is configured to collect fingerprints. The UE 100 can realize fingerprint unlock, application lock access, fingerprint photography, fingerprint call answering, and the like using the collected fingerprint function.

[00254] Temperature sensor 180J is configured to detect temperature. In some embodiments, UE 100 executes a temperature processing policy using the temperature detected by temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the UE 100 reduces the performance of the processor near the temperature sensor 180J to reduce power consumption and implement thermal protection. In some other embodiments, when the temperature is below another threshold, UE 100 heats up battery 142 to avoid a low temperature crash of UE 100. In some other embodiments, when the temperature is lower than another threshold, UE 100 increases the output voltage of battery 142 to avoid abnormal shutdown caused by low temperature.

[00255] The touch sensor 180K is also referred to as a "touch pad". The touch sensor 180K may be located on the display screen 194 . The touch sensor 180K and the display screen 194 form a touch screen, which is also referred to as a "touch screen". The touch sensor 180K is configured to detect a touch operation performed on or near the touch sensor 180K. The touch sensor may communicate the detected touch operation to the application processor to determine the type of touch event. The touch sensor 180K may provide visual output associated with the touch operation using the display screen 194 . In some other embodiments, the touch sensor 180K may alternatively be located on the surface of the UE 100 and located at a position different from that of the display screen 194.

[00256] The bone conduction sensor 180M can receive a vibration signal. In some embodiments, the bone conduction sensor 180M may receive a bone vibration signal of a portion of the human vocal cords. Alternatively, the bone conduction sensor 180M may be in contact with a human pulse and receive a blood pressure beat signal. In some embodiments, the bone conduction sensor 180M may alternatively be placed in a headset to form a bone conduction headset. The audio module 170 can acquire the voice signal by analyzing, based on the vibration signal of the vibratory bone of the vocal cord part, which is obtained by the bone conduction sensor 180M, to realize the voice function. The application processor may analyze the heart rate information based on the pulsed blood pressure signal received by the bone conduction sensor 180M to realize a heart rate detection function.

[00257] The key 190 includes a power key, a volume key, and the like. The key 190 may be mechanical or touch sensitive. UE 100 may receive a key input and generate a key signal input related to user settings and function control of UE 100.

[00258] The electric motor 191 may generate a vibration prompt. Motor 191 may be configured to provide a vibration prompt for an incoming call and may be further configured to provide touch vibration feedback. For example, touch operations performed in different applications (such as taking photos and playing audio) may correspond to different vibration feedback effects. For touch operations performed in different areas of the display screen 194, the motor 191 may also correspond to different vibration feedback effects. Different usage scenarios (such as time prompt, getting information, alarm clock, and playing) can also correspond to different vibration feedback effects. The touch vibration feedback effect can be further customized.

[00259] The indicator 192 may be an indicator light, may be configured to indicate charging status and battery replacement, and may also be configured to indicate a message, missed call, notification, or the like.

[00260] The SIM card interface 195 is configured to connect to a SIM card. The SIM card may be inserted into the SIM card interface 195 or connected to the SIM card interface 195 to contact or be separated from the UE 100. UE 100 may support one or N SIM card interfaces. N is a positive integer greater than 1. The SIM card interface 195 may support a nano SIM card, a micro SIM card, a SIM card, and the like. A plurality of cards can be inserted into the same SIM interface 195. The plurality of cards may be of the same or different types. The SIM card interface 195 may further be compatible with various types of SIM cards. The SIM card interface 195 may also be compatible with an external memory card. UE 100 communicates with the network using a SIM card to implement functions such as calling and data transmission. In some embodiments, UE 100 uses an eSIM, ie an embedded SIM card. The eSIM card may be embedded in UE 100 and cannot be separated from UE 100.

[00261] Embodiments of the present invention further provide a chip system, the chip system includes at least one processor, a memory and an interface circuit, a memory, a transceiver, and said at least one processor are connected to each other via a line, and said at least at least one memory stores instructions; and when the instructions are being executed by the processor, the flowchart of any embodiment of the method in FIG. 5 - fig. 9 can be implemented.

[00262] Embodiments of the present invention further provide a computer-readable storage medium. The computer-readable storage medium stores instructions, instructions, as they are executed on the computer, which results in the flowchart of any embodiment of the method of FIG. 5 - FIG. 9.

[00263] Embodiments of the present invention further provide a computer program product. When the computer program product is running on the processor, the flowchart of any embodiment of the method in FIG. 5 - fig. 9 can be implemented.

[00264] In combination with the embodiments disclosed herein, the steps of a described method or algorithm may be implemented using hardware or a software instruction executable by a processor. The program instruction may be generated by the corresponding program module, and the program module may be stored in random access memory (RAM), flash memory, read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), register, hard disk, removable magnetic disk, CD-ROM, or any other form of storage media well known in the art. For example, a storage medium is coupled to the processor such that the processor can read information from, or write information to, the storage medium. Of course, the storage medium may be a component of the processor. The processor and storage medium may be located in an ASIC. In addition, the ASIC may be located in the computing device. Of course, the processor and the storage medium may be used as discrete assemblies existing in the computing device.

[00265] One skilled in the art can understand that all or some of the processes of the methods in the embodiments can be implemented by a computer program instructing the appropriate equipment. The program may be stored on a computer-readable storage medium. When the program is executed, the procedures of the above method embodiments are performed. The above-mentioned storage medium includes: a medium such as ROM, RAM, a magnetic disk, or an optical disk that can store program code.

Claims (56)

1. A method for processing a network connection, comprising: connection of the user equipment (UE) to both the 4G base station and the 5G base station using the LTE-NR dual connection technology of the radio access network; when the UE satisfies the predetermined condition in data transmission, sending a message to the network, the message being used to release the connection between the UE and the 5G base station; wherein the preset condition comprises at least one of: the UE is in the screen-on state and the data rate of the UE is less than or equal to the first preset rate; the UE is in the screen-on state and the data packet size to be transmitted by the UE is less than or equal to the first preset threshold; the UE is in a disabled state; the overall temperature of the UE is greater than or equal to a preset temperature threshold; the UE is in a screen-off state and the data rate of the UE is less than or equal to the second preset rate; or The UE is in a screen-off state and the data packet size to be transmitted by the UE is less than or equal to the second preset threshold. 2. The method of claim 1, wherein the LTE-NR dual connection technology is that the UE independently uses the physical resources of two base stations at the same time in an RRC radio resource control connection mode for transmission. 3. The method of claim 1, wherein the UE data rate comprises the UE data rate for the downlink data. 4. The method according to p. 1, while the method further comprises: The UE does not send a measurement report to the network when the UE satisfies a predetermined condition in data transmission. 5. The method of claim 4, wherein the measurement report contains at least one of: the ID, the power RSRP of the received reference signal, or the RSRQ quality of the received reference signal. 6. The method of claim 1, wherein the method further comprises: after releasing the connection between the UE and the 5G base station; the icon displayed on the UE interface does not change, and said icon is used to indicate a wireless access network or a wireless connection technology used by the UE during communication. 7. The method of claim 1, wherein the message contains an SCG channel failure message. 8. The method of claim 1, wherein the message contains a release field. 9. User equipment (UE), containing: non-short-term memory containing instructions; and a processor coupled to non-long-term memory, wherein the instructions, when executed by the processor, cause the UE to execute: connection to both a 4G base station and a 5G base station using the LTE-NR dual connection technology of the radio access network; when the UE satisfies the predetermined condition in data transmission, sending a message to the network, the message being used to release the connection between the UE and the 5G base station; wherein the preset condition comprises at least one of: the UE is in the screen-on state and the data rate of the UE is less than or equal to the first preset rate; the UE is in the screen-on state and the data packet size to be transmitted by the UE is less than or equal to the first preset threshold; the UE is in a disabled state; the overall temperature of the UE is greater than or equal to a preset temperature threshold; the UE is in a screen-off state and the data rate of the UE is less than or equal to the second preset rate; or The UE is in a screen-off state and the data packet size to be transmitted by the UE is less than or equal to the second preset threshold. 10. The UE of claim 9, wherein the LTE-NR dual connection technology is that the UE independently uses the physical resources of two base stations simultaneously in an RRC radio resource control connection mode for transmission. 11. The UE of claim 9, wherein the UE data rate comprises the UE data rate for the downlink data. 12. The UE of claim 9, wherein the instructions, when executed by the processor, cause the UE not to send a measurement report to the network when the UE satisfies a predetermined condition in data transmission. 13. The UE of claim 9, wherein the measurement report contains at least one of: the ID, the power RSRP of the received reference signal, or the RSRQ quality of the received reference signal. 14. The UE of claim 9, wherein the instructions, when executed by the processor, instruct the UE not to change an icon displayed on the interface of the UE after releasing the connection between the UE and the 5G base station, which icon is used to indicate the wireless access network or wireless connection technology used by the UE during communication. 15. The UE of claim 9, wherein the message contains an SCG channel failure message. 16. The UE of claim 9, wherein the message contains a release field. 17. A computer-readable storage medium containing instructions for storage on a non-transitory medium and which, when executed by a processor, causes a user equipment (UE) to perform: connection to both a 4G base station and a 5G base station using the LTE-NR dual connection technology of the radio access network; when the UE satisfies the predetermined condition, sending a message to the network, the message being used to release the connection between the UE and the 5G base station; wherein the preset condition comprises at least one of: the UE is in the screen-on state and the data rate of the UE is less than or equal to the first preset rate; the UE is in the screen-on state and the data packet size to be transmitted by the UE is less than or equal to the first preset threshold; the UE is in a disabled state; the overall temperature of the UE is greater than or equal to a preset temperature threshold; the UE is in a screen-off state and the data rate of the UE is less than or equal to the second preset rate; or The UE is in a screen-off state and the data packet size to be transmitted by the UE is less than or equal to the second preset threshold. 18. The computer-readable storage medium of claim 17, wherein the LTE-NR dual connection technology is that the UE independently uses the physical resources of two base stations simultaneously in an RRC radio resource control connection mode for transmission. 19. The computer-readable storage medium of claim 17, wherein the UE data rate comprises the UE data rate for the downlink data. 20. The computer-readable storage medium of claim 17, which, when executed by the processor, causes the UE to not send the measurement report to the network when the UE satisfies the predetermined condition when transmitting data.

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