RU2805992C2 - Method of processing network connection, corresponding device and computer media - Google Patents

Abstract

FIELD: communication technologies.

SUBSTANCE: invention is aimed to reduce the power consumption of the device and increase the efficiency of the use of network resources. It is achieved in that the network connection processing method is applied to the user equipment on the UE side and relates to 5G NR and the field of artificial intelligence communications. The method includes: connecting the UE to both a 4G base station and a 5G base station using dual connection technology; and, when the UE is in a screen-off state and the UE's data rate is less than or equal to a preset rate, releasing the connection between the UE and the 5G base station.

EFFECT: reduced power consumption of the device and increased efficiency of the use of network resources.

27 cl, 12 dwg

Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority based on Chinese Patent Application No. 201910177518.5, entitled “ENERGY SAVING METHOD FOR TERMINAL”, filed with the National Intellectual Property Administration of China on March 9, 2019, and has priority based on Chinese 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 incorporated herein by reference in their entirety.

Field of technology to which the invention relates

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

State of the art

[0003] The concept of dual connectivity is introduced in the LTE R12 standard. In particular, user equipment (UE) can use the independent physical resources of two base stations simultaneously in connected mode radio resource control (RRC) for transmission. LTE dual connectivity technology expands the application field 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 (EN-DC) and mainly includes 4G E-access network UTRAN. (also called LTE access network) and 5G new random access technology (NR) access network (abbreviated as NR access network). In this way, 5G network deployment can leverage existing 4G LTE coverage to avoid wastage of network resources.

[0005] In LTE dual connectivity technology, a UE can be connected to a 4G base station (which may be called eNB) and a 5G base station (which may be called En-gNB) simultaneously, and receive high speed and low latency wireless transmission service based on close 4G-5G compatibility. Compared with the single access network mode of operation, for example, for communication using only 4G LTE technology, dual-connection LTE technology results in high power consumption of user equipment. Moreover, in a scenario having low network utilization requirements, the LTE access network can provide the network connection requirements of user equipment. If LTE-NR dual connection technology is still used, waste of network resources will inevitably occur and energy consumption of user equipment will increase.

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 to solve problems such as high device power consumption and wastage of network resources when communicating using LTE-NR dual connection technology in a low network speed scenario in conventional technologies.

[0007] According to a first aspect, an embodiment of the present invention provides a method for processing a network connection. The method applies to the 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 speed use case, releases the connection between the UE and the 4G base station or 5G base station. The connection between a UE and a 4G base station is also called an LTE connection, and the connection between a UE and a 5G base station is also called an NR connection. Therefore, it can solve problems such as high device power consumption and wastage of network resources in communication while continuing to use LTE-NR dual connection in the low network speed use case of conventional technologies.

[0008] A low network rate use case is a use case in which the UE has low network usage requirements, and can be specifically referred to as a low UE data rate, a small data packet that must 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 speed use case:

[0009] (1) The UE is in screen-on state and operating at low network speed. Low network speed means that the UE's data rate 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, for example 50 kbit/s; or may mean that the UE transmission rate for downlink data is less than a second preset rate, for example 60 kbps; or may mean that the UE transmission rate for all data, including uplink data and downlink data, is less than a third preset threshold, for example, 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 the feature to run an application at low network speeds enabled and the feature to launch an application at high network speeds is disabled. A low network speed application is an application that is deployed to the 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 to the UE and has high data rate requirements, such as a video application. In the second scenario, the UE exchanges a heartbeat packet with another device to maintain a normal communication connection, etc. In the third scenario, the UE is in a low network speed scenario, such as a game scenario or a navigation scenario. The game scenario places high demands on the CPU load. The navigation scenario has high requirements on the device's heat dissipation performance, but low requirements on network speed (i.e., data transfer speed).

[0010] (2) The UE is in a screen-on state, and the size of a data packet to be transmitted by the UE is less than or equal to a 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 real application, the overall temperature of the UE can usually be replaced by the temperatures of some major devices in the UE, such as CPU temperature, SOC temperature, and battery temperature.

[0013] (5) The UE is in screen off state and operating at low network speed. In this embodiment, the UE is in a screen off state and operates at low network speed also in a variety of scenarios. For example, the UE still keeps the application running in the background when the screen is off. In this case, to meet low network usage requirements, the function of running an application at low network speed can be enabled, and the function of launching an application at high network speed can be disabled. In another example, the UE does not transmit or receive data in the screen off state, or transmits only a data packet, such as a test heartbeat packet or a monitoring data packet, to keep the application program in the active state. This type of data packet is sent periodically, and the transmission speed 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 size of a data packet to be transmitted by the UE is less than or equal to a second preset threshold.

[0015] Optionally, regardless of the screen state in which the UE is located, when identifying a low network speed use case through the UE's data rate, to ensure the accuracy of identifying the low network speed use case, the UE may further limit the data rate. For example, the UE calculates a corresponding 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 speed use case. Otherwise, it is determined that the UE is not in a low network speed use case.

[0016] Optionally, when LTE can satisfy the low network usage requirements of the UE (that is, LTE can satisfy the low network speed usage scenario), the UE can preferably be disconnected from the 5G base station, that is, it is preferable to release the NR connection in 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 UE's data rate 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 exemplary embodiments, the UE includes a non-access NAS layer and a radio resource control RRC layer. When determining that the UE is in a low network speed use case, the UE's 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 use case, or is specifically used to notify a condition to identify a low network speed use case. 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 5G base station, that is, stop LTE. or NR measurement. Optionally, the second notification message is further used to instruct the RRC layer not to support the connection between the UE and the 4G base station or 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 the 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, when determining that the UE is in a low network speed use case, 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 a private command message, the UE side does not detect the radio access network used by the UE for communication. Once the connection between the UE and the 4G base station or 5G base station is released, the user cannot recognize, through the icon displayed on the UE interface, the base station or access network connected to the UE for communication. In this case, the icon displayed in the UE interface does not change. For example, the displayed icon is 4G-5G when 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 an 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 displayed icon is 4G-5G when dual LTE-NR connection, the displayed icon is 5G after LTE connection is released, and the displayed icon is 4G after NR connection is released.

[0020] Optionally, the first notification message and the second notification message carry corresponding 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 may be released, that is, the NR connection may be released. When the first notification message carries "08030201", it 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 accordingly release a radio resource occupied at the base station side when the connection between the UE and the 4G base station or 5G base station is configured to accordingly release the connection between the UE and the 4G base station or 5G base station on the base station side. 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 4G base station side when the connection between the UE and the 4G base station is configured. to accordingly release the connection between the UE and the 4G base station on the 4G base station side.

[0022] During 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 at the 5G base station side 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 5G base station side. The SCG link failure message may have different specifications in different protocol versions. For example, in protocol version R12, the SCG link failure message may be a signaling message SCGFailureInformation-r12-IEs and include parameters such as failure type failureType-r12. The failure type includes any one or combination of the following: timer delay (that is, the data transmission delay supported at the UE side and at the network side), random access problem randomAccessProblem, RLC maximum number of retransmissions rlc-MaxNumRetx (maximum number of retransmissions allowed) RLC data packets), SCG channel change failure scg-ChangeFailure (i.e. SCG channel switching is not supported), etc.

[0023] With reference to the first aspect, in some exemplary embodiments, the UE further includes a non-access NAS layer. The NAS may send a signaling message to the corresponding base station to instruct the base station to release a radio resource occupied on the base station side when a connection between the UE and a 4G base station or a 5G base station is configured to release a connection between the UE and a 4G base station or a 5G base station on the base station side. 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 instruct the 5G base station not to support the 5G connection. Accordingly, after receiving the first TAU message, the 5G base station decides not to maintain communication using the 5G connection and may further release the radio resource occupied on the 5G base station side 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 communication function of the connection between the UE and the 4G base station or 5G base station. The indication information can be in the form of a specified 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, a 4G base station or a 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 instruct the RRC layer to release a radio resource occupied at the UE side when a connection between the UE and a 4G base station or a 5G base station is configured to release a connection between the UE and a 4G base station or a 5G base station at the UE side. Accordingly, in response to the first RRC reconfiguration message, the RRC layer may release a radio resource occupied at the UE side when the connection between the UE and the 4G base station or 5G base station is configured to release the connection between the UE and the 4G base station or 5G base station at the U.E.

[0026] Optionally, the first RRC reconfiguration message carries a release field, which is specifically used to instruct the RRC layer to release a configuration parameter on the UE side, such as the cell ID of the receiving downlink channel or frequency, which is associated with the 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 5G base station on the UE side, the RRC layer may send a third notification message to the NAS to notify that that currently the connection between the UE and the 4G base station or 5G base station is already released at the UE side.

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

[0029] Optionally, a specific implementation in which the UE is not in a low network speed use case is not limited. For example, the UE does not satisfy the above six detection conditions in which the UE is in a low network speed use case. For example, the UE is in a screen-on state.

[0030] With reference to the first aspect, in some exemplary 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's AP application processor may send a fourth notification message to the NAS to notify that the UE is not in a low network speed use case and needs to re-establish the connection between UE and a 4G base station or a 5G base station. Accordingly, after receiving the fourth notification message, the NAS sends a fifth notification message to the RRC layer to instruct the RRC layer to maintain the connection between the UE and the 4G base station or 5G base station, and to restore or start measuring the connection between the UE and the 4G base station or base station. 5G station, that is, starting LTE or NR measurements. Accordingly, the RRC layer triggers an LTE or NR measurement in response to the fifth notification message, such 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 a radio resource that should be occupied at the base station side when the connection between the UE and the base station The 4G or 5G base station is reconfigured to respectively re-establish the connection between the UE and the 4G base station or the 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 a radio resource to be occupied at the base station side when the UE connects to the base station to re-establish a connection between the UE and the base station at 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 5G base station to indicate that a connection is currently being maintained between the UE and the 4G base station or base station 5G, to re-establish a connection between the UE and a 4G base station or a 5G base station on the base station side. The example used is connection re-establishment between a UE and a 5G base station. 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 may reconfigure a 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 the 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 a radio resource to be occupied at the UE side when the UE is connected to a 4G base station or a 5G base station to re-establish a connection between the UE and a 4G base station or a 5G base station at the UE side. Accordingly, in response to the second RRC reconfiguration message, the RRC layer reconfigures a radio resource to be occupied at the UE side when the UE is connected to a 4G base station or a 5G base station to re-establish a connection between the UE and the 4G base station or 5G base station at UE side.

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

[0035] According to a second aspect, an embodiment of the present invention provides 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 other 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 the 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 communications interface. The communication interface communicates with the processor, and the communication interface is configured to communicate with another device (eg, a network device) under 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 corresponding implementation steps performed by the NAS according to the first aspect, and the RRC entity is configured to perform the corresponding 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 instruct the RRC layer to release a radio resource occupied at 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 at the side UE; And

releasing, according to the instruction of the first RRC reconfiguration message, a radio resource occupied at 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 at the UE side.

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

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

[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 UE's data rate 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 contents not shown or described, reference may specifically refer to the corresponding descriptions in embodiments of the above-mentioned first aspect. The details are not described here again.

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

[0045] In the present invention, based on implementations in accordance with the above aspects, further combination may 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 will be 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 multi-layer communication in a user equipment interface protocol according to an embodiment of the present invention;

[0049] FIG. 3 is a schematic diagram of a communication link for determining data transmission channels by a user equipment according to an embodiment of the present invention;

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

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

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

[0053] FIG. 7-9 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 structure 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 background of this application is described.

[0059] 1. LTE-NR dual connection technology

[0060] In LTE-NR dual connection 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 synchronously scheduled at the MAC layer. Dual connection channels are separated at the packet data convergence protocol (PDCP) layer, and the two base stations can independently schedule physical layer resources without strict synchronization. The following mainly describes the LTE-NR dual connectivity technology on user plane and control plane in detail.

[0061] 1.1 Control plane

[0062] FIG. 1 is a schematic diagram of the network architecture of the 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 (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 do not constitute a limitation.

[0063] The base station (which may be, in particular, MeNB or SeNB) provides a radio interface to the user, 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 service communications.

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

[0065] The mobility management entity MME is a network element of the core network and is primarily 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 on 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 through 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 real-life applications, 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 wireless standard interface protocol is divided into three layers: physical layer L1 (physical layer, PHY), data link layer L2, and network layer L3. For example, FIG. 2 is a schematic diagram of multilayer communication in a UE user equipment 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, joining and sequencing of higher layer data. The MAC layer is mainly responsible for hybrid automatic repeat request (HARQ) retransmission, uplink and downlink scheduling, etc. In actual application in LTE-NR dual connection technology, 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-connected channels are separated at the packet data convergence protocol (PDCP) layer.

[0069] The L3 network layer includes a non-access stratum (NAS) and an RRC layer. The non-access NAS layer may be configured to convey user information or control information, such as information about establishment, release and mobility management of a 4G/5G communication channel or service. The protocol layer below the NAS may also be called 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, modifies and releases an end-to-end radio channel (e.g. a radio access network channel between the UE and a party network) and performs mobility management, including functions such as UE measurement reporting, handover, and cell reselection. In actual application, the UE can communicate with the network side through the L3 network layer to perform operations such as creation and release of 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 (MCG) and a secondary cell group (SCG). According to the different methods of dividing and forwarding data, data channels are divided into three types: MCG channel, SCG channel and divided transmission channel. The primary MCG cell group is a cluster of cells in which at least one main base station MeNB is located, and the secondary group of cells is a cluster of cells in which at least one secondary base station SeNB is located.

[0072] In actual application, all data channels perceived by the UE and the network side are different. In particular, FIG. 3 and fig. 4 shows the UE data bearer links and the network side data bearer links, respectively.

[0073] As shown in FIG. 3, the UE defines three types of data channels: MCG channel, SCG channel and split channel. The MCG 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. Divided channel means that the data is divided at the base station side and can be sent by the main base station MeNB or the secondary base station SeNB to the UE or can be transmitted by the main base station MeNB and the secondary base station SeNB. to the UE at the same time according to a predetermined split ratio to provide the service.

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

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

[0076] A channel ending in MN is a radio channel whose PDCP layer is located in the main base station MeNB and not in the secondary base station SeNB. In contrast, a channel ending in SN is a radio channel whose PDCP layer is located in the secondary base station SeNB rather than in the main base station MeNB. As shown in FIG. 4, when the data channel detected on the network side is an MCG transmission channel terminating in MN, the communication channel used in data transmission is: LTE PDCP/NR PDCP-LTE RLC-LTE MAC. When the data channel perceived on the network side is a split channel terminating in MAN, the communication channel used in data transmission is: NR PDCP-LTE RLC-LTE MAC or NR PDCP-NR RLC-LTE MAC. This can be specially selected according to actual requirements and is not limited. Communication channels corresponding to data 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 (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 communication link (NR link) and a core network. In non-standalone networks, existing 4G infrastructure is used to deploy a 5G network.

[0079] For 5G, a non-standalone NAS network based on LTE-NR dual-connection technology can enable the phased deployment of the 5G core network and access network, which promotes the rapid deployment and application of 5G. As 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 5G non-standalone NAS network scenario.

[0080] Some low network speed use cases are then described. A low network speed use case is a use case in which the user equipment has low network usage requirements, and can be particularly a use case in which the rate at which the user equipment UE transmits data (abbreviated as data rate) is low, or the size of the data packet to be transmitted by the UE is small. In contrast, 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, the following are possible use cases with low network speeds:

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

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

[0083] The preset speed 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 is no limitation.

[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 UE has the low network speed application launch function enabled and the high network speed application launch function disabled. In particular, to meet the requirements of network usage at low network speed, the UE can set the application function in power saving mode as follows: allow the application to run at low network speed and prohibit the application to launch at high network speed, that is, enable the function to launch the application at low network speed and disable the feature to launch the application with high network speed. It is understood that after the function of running an application with high network speed is disabled in the UE, only the application with low network speed is allowed to run in the UE. Since 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 running in the UE at the same time, the sum of data rates of the low network speed applications is also small, for example, less than a preset speed, and the requirement of using a low network speed network can also be satisfied. In this case, the UE is still determined to be operating at a low network speed.

[0086] A low network speed application is an application that is deployed in a UE and has low data rate requirements, for example, a requirement that the data rate to be transmitted in the application be less than a 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, for example, a requirement that the data rate be greater than or equal to the fifth preset rate. A high-speed network application can also be configured on the system or customized by the user according to personal preferences and could be, for example, a music application or a video application.

[0088] Optionally, in order to eliminate the case where the UE temporarily operates at a low speed, the case of incorrect determination, etc., 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), the UE may be determined to be operating at a low network speed. Otherwise, it is still determined that the UE is not operating at low network speed. That is, the condition for identifying that the UE is in a low network speed usage scenario may be, in particular: the UE is in a screen-on state, and the UE's data transmission 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 to maintain a normal communication connection. In particular, when the UE is not performing overhead communication with another device (e.g., a base station), that is, the UE does not need to transmit overhead data in order to maintain a communication connection between the UE and the other device, the UE can typically periodically send a heartbeat packet to the other device. to notify that the UE maintains a communication connection with another device. In real applications, the data transfer rate of a heartbeat packet is usually low, for example, a few kilobits per second. The heartbeat packet size is also small, for example, a few kilobits. Typically, 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 operating scenario, such as a game scenario or a navigation scenario. For example, in a game scenario, the UE launches a game application. In a real-life application, a gaming application only places high demands on the speed of the central processing unit (CPU) in the UE and, in comparison, has low requirements on the data transfer speed (i.e., 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] In addition, herein, UE screen states can be classified into multiple types: screen on state, screen off state, locked state, and unlocked state. In an actual application, the UE may be in an unlocked screen-on state or a locked screen-on state, among others. Typically the UE is also in a locked state when the UE is in a screen off state. The screen state of the UE may be specifically identified using a software detection method or a hardware detection method. The software detection method is used as an example. The UE may first determine the screen on or off state based on the screen-displayed isScreenOn value defined in the isInteractive HCI code in powermanager. For example, when isScreenOn is true, it means that the UE is in screen-on state; or otherwise it is determined that the UE is in a screen off state. After determining that the UE is in a screen-on state, the UE may then detect based on the screen lock code isScreenLocked whether the UE is locked. If the UE is locked, it may be determined that the UE is in a locked state, and in particular, the UE may be in a locked screen-on state. Otherwise, it is determined that the UE is in a screen-on state, and in particular, the UE is in an unlocked screen-on state.

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

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

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

[0095] In particular, when the UE is in a screen-on state, if the size of a data packet to be transmitted by the UE is large, for example, larger than a first preset size threshold, the UE may consider that the current communication load on the UE is high. that is, the data packet or 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 use case. 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 utilization requirements are not high . Accordingly, the UE may consider that the UE is in a low network speed use case.

[0096] 3. The UE is in a disabled 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 the fact that the mobile data function or the mobile data function of the UE is disabled) in any screen state (for example, in a screen on state or a screen off state), you can directly determine that the UE is in a low network speed use case. In other words, when the UE is in a disabled state, it can be directly determined that the UE is in a low network speed use case. The disconnected state in this document does not mean a complete network shutdown, but instead refers to the fact that the mobile network used by the user equipment for communication is disabled, and communications carried out by the user equipment using other data networks are not affected. In particular, only the mobile data function of the UE may 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 carry out normal communication with the base station. A complete network disconnect means that the UE has no communication with the network and the UE exists as a dead UE. Since the UE is not connected to any network, the network side cannot detect the presence of the UE and hence cannot perform network monitoring on the UE.

[0098] For example, the user equipment UE is a mobile phone. In this embodiment, the disabled 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 cut off. Accordingly, since the mobile phone is not disconnected from the telephone network at the base station side, the communication between the mobile phone and the telephone network is not affected. Thus, a mobile phone can usually answer or make calls. However, if the mobile phone is completely disabled, 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 support communication between the mobile phone and communication networks. In this case, the mobile phone's data function is completely disabled. For example, in this case, the mobile phone cannot answer 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 a screen-on state or in a screen-off state, when the overall temperature of the UE is excessively high, for example, the overall temperature is greater than or equal to a preset temperature threshold, the UEs are susceptible to network failures or disconnections, or even the UE may burn out, and, in particular, the central processing unit (CPU) of the UE may burn out. To reduce the overall temperature and protect the UE, the UE needs to automatically close the running application, for example, first close the application that has high power consumption and requires high network speed, such as a video application, and then close the application with low power consumption. power consumption and low network speed requirements, such as a weather app or 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 application requiring high network speed, that is, already closing the high network speed application in the UE. In this case, the UE is in a low network speed use case.

[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 the UE does not have a temperature sensor installed, third-party software (temperature measurement application such as Ludashi) installed in the UE can be configured to determine the overall temperature of the UE.

[00102] In an actual 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. Because the obtained temperature of each component may have a certain error, the obtained overall temperature of the UE also has a large error, and the accuracy of the obtained temperature is low. Therefore, in a real application, the overall temperature of the UE can usually be replaced by the temperatures of some major components in the UE, such as the CPU temperature of the central processing unit, the system on chip (SOC) temperature, and the 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 CPU temperature. The UE may enter the UE's basic input output system (BIOS) to obtain the CPU temperature, or the UE may run CPU temperature software (such as a Python script file) to obtain the CPU temperature. This helps subsequently determine whether the UE's use case is a high network speed use case or a low network speed use case based on the CPU temperature. The details are not described here.

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

[00105] In the screen off state, the UE operates at 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 an application running in the background, such as playing music. To meet the requirement of using a network with a low network speed, the UE can set the application function as follows: allow the application to run with a low network speed and prohibit the application to run with a high network speed, that is, the function of running an application with a low network speed and disable the function of launching an application with a high speed network speed. It is understood that after the function of running an application with high network speed is disabled in the UE, only the application with low network speed is allowed to run in the UE. Since the data rate allowed in these low network speed applications is small, the UE may determine that the UE is operating at low network speed and is in a low network speed use case. Optionally, when a plurality of low network speed applications are running in the UE at the same time, the sum of data rates of the low network speed applications is also small, for example, less than a preset speed, and the requirement of using a low network speed network can also be satisfied. In this case, the UE is still determined to be 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 in the active state. This type of data packet is received and sent periodically, and the size of the data packet is small. In the above case, it can be considered that the user equipment has low network parameter requirements and the like and has low network usage requirements, and the UE is considered to operate at a low network speed, that is, in a low network speed usage scenario.

[00108] Optionally, after the UE enters the screen off state, the UE's data rate typically becomes lower, for example, the data rate is less than a preset rate. Therefore, when the identification accuracy of a low network speed use case is not considered, when the UE detects that the UE is in a screen off state, the UE can be directly considered to be in a low network speed use case.

[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 a 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. To meet the requirement of using a low network speed network, the UE may not only consider the data transmission rate, but also determine the amount of data to be transmitted by the UE (that is, the size of the data packet to be transmitted).

[00111] In particular, when the UE is in a 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 the UE is in a low network speed use case. Specifically, when the size of a data packet to be transmitted by the UE is smaller than the second preset size threshold, the UE may consider that the UE's communication load is high and the network usage requirements are high, and determine that the UE is not in a use case with low network speed. In contrast, the UE's communication load is considered to be low and the network usage requirements are low, and the UE is determined to be in a low network speed usage scenario.

[00112] For example, a low network speed use case is a heartbeat exchange use case. When the UE does not need to perform service communication to maintain the communication connection between the UE and the network side, the heartbeat mechanism is usually used to maintain the connection between the UE and the side networks. In particular, 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, so as to maintain a long-lasting 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 a communication connection exists between the UE and the network side. In real-life applications, the size of a heartbeat packet is very small, typically a few kilobits, or a heartbeat packet may 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 use case.

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

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

[00115] S5101: When detecting that the UE is in a low network speed use case, the application processor (AP) of the UE 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 speed 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 use case, for example, the AP application processor detects that the UE is in a low network speed use case, a first signaling message may be sent to the UE's NAS. The first signaling message is used to notify that the UE is in a low network speed usage scenario and the connection of any of the access networks in the LTE-NR dual 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 use case, reference may be made to the corresponding descriptions in the above-mentioned 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 a normal command message, such as the at^syscfgex command message used to disable the NR connection communication function (that is, disable the 5G communication function). When the first signaling message is a private command message, such as an AT command message, the AP may send the AT command message to the NAS via the AT command interface to release the LTE connection or NR connection. In this case, the UE does not detect the access network used for communication by the UE. After the UE releases an LTE connection or an NR connection in a dual LTE-NR connection, the icon displayed on the UE interface does not change. The user cannot know, based on the displayed icon, the access network connection used in the UE's current communication, and cannot know whether the UE is currently releasing an LTE connection or an NR connection in an LTE-NR dual connection. The icon displayed 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 UE communication.

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

[00119] In an actual application, the displayed icon may be specifically configured in the system to distinguish the access networks connected to the UE. For example, when the UE uses 4G LTE for network connection and communication, the displayed icon may be the symbol "4G". For example, FIG. 6 is a schematic diagram of possible icon changes when switching dual LTE-NR connections. As shown in FIG. 6, (a) fig. 6 shows that the UE connects to the network using LTE-NR dual connection 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 can be "4G-5G". In (b) FIG. 6, after the UE releases the NR connection in LTE-NR dual 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) FIG. 6, The UE releases the LTE connection in LTE-NR dual connection mode and retains only the NR connection to access the network for communication with the 5G base station. As shown in the figure, the icon displayed to identify the NR connection may be "5G". 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 the LTE-NR dual connection, and any access network may be an access network configured in the UE system. For example, according to the actual network usage requirements of the UE, the LTE access network connection or the NR access network connection used for communication between the UE and the network side is released and abbreviated as the LTE connection or NR connection below. For example, when the current network usage requirements for the UE are high, for example, the data packet size that currently needs to be transmitted by the UE is larger than the preset second threshold and less than or equal to the preset first threshold, the system may release the LTE connection by default. On the contrary, when the current network utilization 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 may release the default NR connection and retain the LTE connection to satisfy the low requirements for using the UE network. The preset first threshold, preset second threshold and preset third threshold are configured in the system. The preset second threshold is less than the preset first threshold, and the preset second threshold and the preset third threshold may or may not be equal. This is definitely not limited in this application.

[00121] In this application, an NR connection is a connection between a UE and a 5G base station, and an LTE connection is a connection between a UE and a 4G base station. Accordingly, in this application, releasing the NR connection releases the connection between the UE and the 5G base station, and releasing 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 instruct the RRC layer not to communicate using the LTE connection or the NR connection. Accordingly, the RRC layer receives the second signaling message.

[00123] Upon 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 not to currently communicate using the LTE connection or the NR connection, i.e., the RRC layer cannot use LTE connection or 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 below as stop LTE or NR measurement.

[00124] In an actual application, the second signaling message includes at least one indication flag bit used to instruct 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 indication flag bits are "00", it means instructing the RRC layer not to support communication using LTE or NR dual connection; “01” means instructing the RRC layer to communicate using LTE or NR dual connection; “00” means instructing the RRC layer not to support communication using LTE or NR dual connection and disable the LTE or NR measurement function; and “11” means instructing the RRC layer to support communication using LTE or NR dual connection and enable LTE or NR metering function.

[00125] In a specific implementation, upon detecting that the UE is in a low network speed use case, the UE AP may send a first signaling message to the UE's wireless modem module to command the release of the connection of any of the access networks in the dual LTE-NR connection. The modem module may be, in particular, a baseband processor (BP) deployed in the UE, and includes a NAS and an RRC layer. AP and BP are described in detail below 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 is not communicating using an LTE connection or an NR connection, and LTE or NR measurements should 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 message function, e.g., prohibit the UE from sending data or LTE or NR Measurement Report to network side.

[00127] S5103: The RRC layer disables communication using the LTE connection or the NR connection according to 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 LTE or NR measurement of the RRC layer so that a measurement report regarding LTE or NR, abbreviated as 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, in particular, a base station on the network side) 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 communication channel (i.e., an LTE or NR channel) of an LTE or NR access network, wherein an LTE or NR measurement is also a measurement of an LTE or NR channel. In some exemplary embodiments of the present application, "LTE" and "LTE channel" may be used interchangeably without being limiting, and "NR" and "NR channel" may be used interchangeably without being limiting. Accordingly, the LTE or NR measurement report may include, but is not limited to, a measurement ID and a measurement result of the communication channel (LTE or NR channel) of the access network, for example, information about the strength of the reference signal received power, RSRP) and reference signal received quality (RSRQ).

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

[00131] Upon 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 NR connection on the network side, to release the LTE connection or the NR connection on the network side, that is, to release on the network side the connection between the UE and the 4G base station or a 5G base station on the network side.

[00132] In particular, at the time of releasing the NR connection, the RRC layer may send a third signaling message to the network side via the LTE access network to command the release of the radio resource occupied at the network side when the NR connection is configured to release the NR connection at 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 channel failure message and is specifically used to release a radio resource occupied by an NR connection on the network side, such as the radio resource associated with each functional layer (e.g., NR PDCP, NR RLC, NR MAC, and NR PHY) included in the SCG channel used when exchanging data using an NR connection. For example, the radio resource associated with the NR PHY is released. In particular, information such as the downlink receiving channel, frequency, and cell ID may be released.

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

[00135] Accordingly, at the time of releasing 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, radio resources related to each functional layer (e.g. LTE PDCP, LTE RLC, LTE MAC and LTE PHY) included in the MCG channel used when exchanging data using an LTE connection. The specific implementations of the third signaling message are not limited across protocol versions. Accordingly, after receiving the third signaling message, the network side may release, according to the instruction of the third signaling message, the radio resource occupied by the LTE connection on the network side, for example, release information such as downlink receiving channel, frequency and cell ID to release the LTE connection on the network side, that is, to release the connection between the UE and the 4G base station.

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

[00137] S5105: The network side sends the fourth signaling message to the RRC layer. The fourth signaling message is used to instruct the RRC layer to release the radio resource occupied at the UE side when the LTE connection or NR connection is configured to release the LTE connection or NR connection at 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 at the UE side according to the instruction of the fourth signaling message.

[00139] After releasing the LTE connection or NR connection at 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 at 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 5G base station on the network side.

[00140] In an actual application, the fourth signaling message may be, in particular, a first RRC reconfiguration message used to instruct the RRC layer to release a radio resource, also called resource configuration information, occupied at the UE side when an LTE connection or an NR connection is configured or established. In particular, for example, the NR connection 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 at the UE side when the NR connection is configured, for example, 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 frequency and cell ID, which is associated when an NR connection is configured on the network side, can be released.

[00141] In actual application, when the LTE access network can meet the network usage requirements of the UE in a low network speed use scenario, the UE and the network side preferably release the NR connection to switch the LTE-NR dual connection to the LTE access network connection to realize the handover data over one LTE connection. This will help avoid problems such as wastage of network resources and high power consumption of devices when connected twice, and will also help save network resources 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 as LRRC) and NR RRC (abbreviated as NRRC), the fourth signaling message is specifically used to instruct the NRRC layer to release the radio resource occupied by the NR connection at the UE side and not to release the radio resource belonging to the LRRC layer. Specifically, the network side may send a fourth signaling message to the LRRC, and the LRRC forwards the fourth signaling message to the NRRC, to release the NR connection at 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 controls the release of the radio resource occupied at the UE side when the NR connection is configured.

[00143] Optionally, in response to the first RRC reconfiguration message, the RRC layer may send a corresponding RRC configuration response message to the network side to notify that the RRC layer has already released the LTE connection or the NR connection at 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 NR connection at the UE side has already been released.

[00145] After releasing the LTE connection or NR connection at 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 at the UE side has already been released, that is, the LTE connection or the NR connection at 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 called a third notification message to respectively notify that the LTE connection or the NR connection at 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 instruct 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-mentioned embodiments. This is not described in detail here. For example, the fifth signaling message carries a "0" bit of an indication flag used to indicate or notify that the RRC layer is already releasing the LTE connection at the UE side. The fifth signaling message carries a "1" bit of the indication flag used to indicate or notify that the RRC layer has already released the NR connection at the UE side. This is definitely not limited in this application.

[00147] After the UE releases the communication connection of any of the access networks in a 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 can restore the 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: After detecting that the UE is not in a low network speed use case, 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 speed use case 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's AP detects that the UE does not satisfy the above condition for determining a low network speed use case, it may be determined that the UE is not in a low network speed use case, or the UE is directly considered to be in a high network speed use case. network speed. For example, when the condition for determining that the UE is in a low network speed 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's 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, the UE can be considered not to be in a low network speed use case.

[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 speed use case and it is necessary to reconnect any of the access networks in the already released LTE-NR dual connection, i.e., the corresponding LTE or NR connection. which is disabled in Fig. 5 needs to be restored. In actual application, the fifth signaling message may also be called 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 to determine that the UE is not in a low network speed use case. network speed, such as notifications 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 communication function (ie, re-establish the NR connection). 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 the LTE connection or 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 UE interface 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 the LTE connection or 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, that is, restore the 5G communication function. In this case, the icon displayed on the UE interface changes, and the user can observe the displayed icon to know 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 regular command message, the indication flag bit may be used to indicate to release or re-establish the 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 regular command message carries the "030201" bits of the indication flag, the private command message or the regular command message is used to indicate to release the NR connection. In contrast, when the private command message or the regular command message carries the "08030201" bits of the indication flag, the private command message or the regular command message is used to indicate to re-establish or restore the NR connection. Alternatively, when the private command message or the regular command message is a CLOSE command message, the private command message or the 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 the 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 begin LTE or NR measurement. Accordingly, the RRC layer receives the seventh signaling message.

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

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

[00157] S5111: The RRC layer interacts with the network side to command the reconfiguration of the LTE connection or the NR connection at 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 a radio resource that should be occupied by an LTE connection or an NR connection on the network side to re-establish the LTE connection or 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 LTE or NR measurement, the RRC layer can perform a measurement of the UE cell 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 particularly 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 that should be occupied by the LTE connection or the NR connection on the network side, for example, reconfigure the radio resource that is associated with a functional transmission layer such as NR PDCP, NR RLC, NR MAC and NR PHY and should be used by the LTE connection or NR connection for network side communication, for LTE connection re-establishment or network side NR connection.

[00159] S5112: The network side sends the eighth signaling message to the RRC layer. The eighth signaling message is used to instruct the RRC layer to re-establish the LTE connection or NR connection at 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 the LTE connection or NR connection at the UE side. In an actual application, the eighth signaling message may be, in particular, a second RRC reconfiguration message used to instruct the RRC layer to reconfigure a radio resource to be occupied by an LTE connection or an 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. An NR configuration parameter is, in particular, a parameter related to a radio resource to be occupied by an NR connection at the UE side, for example, a radio resource configuration parameter associated with a transmission functional layer such as NR PDCP, NR RLC, NR MAC and NR PHY. Specifically, when the NR PHY is reconfigured, the NR configuration parameter includes a parameter such as a downlink receiving channel, frequency, and cell ID.

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

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

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

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

[00165] After re-establishing the LTE connection or 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 the LTE connection or connection NR on the UE side. Subsequently, the UE and the network side can communicate using LTE-NR dual 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 LTE or NR access network) of the access networks in the LTE-NR dual connection may be released, and LTE or NR measurement reporting feature is disabled. This can reduce the additional communication power consumption using an LTE connection or an NR connection, thereby reducing device power consumption and improving network efficiency.

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

[00168] S8101: When detecting that the UE is in a low network speed usage scenario, the UE AP sends a tenth signaling message to the UE NAS. The tenth signaling message is used to notify that the UE is in a low network speed 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 the eleventh signaling message to the RRC layer. The eleventh signaling message is used to instruct the RRC layer not to communicate using an LTE connection or an NR connection and to stop measuring the LTE or NR. Accordingly, the RRC layer receives the eleventh signaling message.

[00170] S8103: The RRC layer disables communication using the LTE connection or the NR connection and stops the LTE or NR measurement according to the instruction of the eleventh signaling message. For steps S8101 to S8103, reference may accordingly be made to related descriptions of steps S5101 to S5103, and the details are not 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 an LTE connection or an NR connection needs to be released, the NAS may send a twelfth signaling message to the network side (which may be, in particular, a base station on the network side) to accordingly instruct the 4G/5G base station on the network side not to communicate using LTE connection or 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, at the time of releasing 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 a radio resource occupied by the LTE connection on the network side. In particular, the 4G base station can release the radio resource associated with the transmission functional 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, in particular, the first tracking area update (TAU) message. 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 an LTE-NR dual connection. In an actual application, the indication parameter may be represented by a specified character, a specified numeric value, or a specified string of characters. 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 communication function of the NR connection 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 NR connection at the UE side. Accordingly, the RRC layer receives the thirteenth signaling message.

[00175] S8106: The RRC layer releases the LTE connection or NR connection at the UE side according to the instruction of the thirteenth signaling message.

[00176] In an actual application, the thirteenth signaling message may be, in particular, an RRC re-establishment message and is used to instruct the RRC layer to release a radio resource occupied at 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 NR connection of the UE, the RRC layer may also send a signaling message to the NAS to notify that the RRC layer has already released the LTE connection or NR connection of the UE. For steps S8105 and S8106, reference may be made, respectively, to detailed descriptions of related contents S5105 and S5106 in FIG. 5, and the details are not repeated here. For contents 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 the LTE-NR dual connection, if the UE is no longer in a low network speed use case, the UE may re-establish LTE-NR dual connection communication 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 in particular include the following implementation steps.

[00178] S8107: When detecting that the UE is not in a low network speed use case, 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 speed use case and the connection of any of the already released access networks needs to be re-established or restored (ie, the LTE connection or the 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 begin LTE or NR measurement. Accordingly, the RRC layer receives the fifteenth signaling message.

[00180] S8109: The RRC layer disables communication using the LTE connection or the NR connection and stops the LTE or NR measurement according to the instruction of the fifteenth signaling message. For steps S8107 to S8109, reference may accordingly be made to descriptions of 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 instruct 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, a second TAU message, and the second TAU message is used to indicate the network side to currently support the communication function of an LTE connection or an NR connection, that is, the UE and the network side can communicate with each other other 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 that should 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 LTE connection or NR connection for network side communication, to re-establish an LTE connection or NR connection on the network side.

[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 the LTE connection or NR connection at the UE side. Accordingly, the RRC layer receives the seventeenth signaling message.

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

[00185] In an actual application, the seventeenth signaling message may be, in particular, an RRC reconfiguration message and is used to instruct the RRC layer to reconfigure a radio resource that should be occupied by an LTE connection or an NR connection on the UE side to reconfigure the LTE connection or an NR connection on the UE side . For contents 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 can 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 (for example, LTE or NR access network) access networks in LTE-NR is dual connection is disabled. This can reduce device power consumption and improve network efficiency.

[00187] Based on the respective descriptions of the embodiments in FIGS. 1 - fig. 9 below describes related products such as chip, transceiver unit, apparatus and device that are applicable to this application. Fig. 10 is a schematic block 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 (AP) 1002 and a baseband processor (BP) 1004.

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

[00189] The baseband processor is an important component of the system chip, equivalent to a protocol processor, responsible for processing and storing data, and mainly includes units 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. Nowadays, the baseband processor not only supports many communication standards (such as GSM, LTE and CDMA), but also provides the multimedia function and provides the communication interface associated with the multimedia display, image sensor and audio device.

[00190] In an actual application, the application processor AP supports the execution of software, the software typically including 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 managing 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 communications and control software for the baseband modem and the like.

[00191] The application processor AP and the baseband processor BP may communicate with each other using a pre-installed interface technology. The interface technology may be configured on the system, such as, but not limited to, serial peripheral interface (SPI), universal asynchronous receiver/transmitter (UART), 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 calling, SMS messaging, and mobile network access. The control command may include a regular 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 an actual application, the AP application processor communicates with the NAS and the RRC layer in the baseband processor BP. For example, the application processor AP in this application may send a corresponding 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 processor BP supports 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 herein. The RRC layer in the baseband processor BP 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 herein.

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

[00195] In the implementation of this embodiment of the present invention, it can solve problems such as high power consumption of the device and wastage of network resources when communicating 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 corresponding steps performed by the NAS in any of the method embodiments of FIG. 5 - fig. 9, or the technical content described herein. The RRC entity 1104 is configured to perform the corresponding steps performed by the RRC layer in any of the method embodiments of FIG. 5 - fig. 9, or the technical content described herein.

[00197] For example, the NAS entity 1102 is configured to: upon receiving the first notification message sent by the UE application side, send an NR shutdown 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 size of a data packet to be received or sent by the UE is less than or equal to the first threshold. The NR Release message is used to instruct the RRC entity to release the radio resource occupied at the UE side when the NR connection is configured to release the NR connection at the UE side.

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

[00199] In some exemplary embodiments, the RRC entity 1104 is further configured to send a secondary cell group SCG channel failure message to the network side. The SCG Channel Failure message is used to indicate to release the radio resource of the SCG channel 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 mutual NR connection communication via the SCG channel.

[00200] In some exemplary 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 UE side NR connection has already been released.

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

[00202] In some exemplary embodiments, the NAS entity 1102 is further configured to: upon receiving the third notification message sent by the UE application side, send an NR re-establishment 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 instruct the RRC entity to reconfigure the radio resource to be occupied by the UE-side NR connection to re-establish the UE-side NR connection.

[00203] The RRC entity 1104 is further configured to reconfigure, in accordance with the NR re-establishment message instruction, a radio resource to be occupied by the UE-side NR connection to re-establish the UE-side NR connection.

[00204] In some exemplary 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 exemplary embodiments, the RRC entity 1104 is further configured to send a secondary cell group SCG success message to the network side. The SCG success message of the secondary cell group is used to indicate to reconfigure the radio resource of the SCG that is occupied by the network side NR connection to re-establish the network side NR connection.

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

[00207] FIG. 12 is a schematic block diagram of a possible UE. The UE 100 may also be referred to as a network connection processing device. The 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 charging control module 140, a power management unit 141, a battery 142, an antenna 1, an antenna 2, a module mobile communication module 150, wireless communication module 160 and audio module 170, loudspeaker 170A, handset 170B, microphone 170C, headset jack 170D, sensor module 180, key 190, electric motor 191, indicator 192, camera 193, display screen 194, card interface 195 subscriber identification module (subscriber identification module, SIM), etc. The sensor module 180 may include a pressure sensor 180A, a gyroscopic 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. ambient light sensor 180L, bone conduction sensor 180M, etc.

[00208] It may be understood that the exemplary structure in this embodiment of the present invention is not a particular limitation to the UE 100. In some other embodiments of the present application, the 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 according to 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. The memory may store instructions or data that have recently been used or cyclically accessed by the processor 110. If the processor 110 needs to use the instructions or data again, the instructions or data may be recalled directly from memory to avoid re-access and reduce latency of the processor 110, 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 interface (USB), etc.

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

[00214] The I2S interface may be configured to perform audio communications. In some embodiments, processor 110 may include multiple groups of I2S buses. The processor 110 may be coupled to the audio module 170 via an 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 call answering functionality through a Bluetooth headset.

[00215] The PCM interface may also be configured to perform audio communication, sampling, quantization, and encoding 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, audio module 170 may also transmit audio to wireless module 160 via the PCM interface to perform call answering functionality 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 bidirectional communication bus. The bus converts the data to be transmitted between serial and parallel communications. In some embodiments, a UART interface is typically configured to connect processor 110 to wireless module 160. For example, processor 110 communicates with the Bluetooth module in wireless communication module 160 via a UART interface to perform Bluetooth functionality. In some embodiments, audio module 170 may transmit an audio signal to wireless module 160 via a UART interface to perform music playback functionality through a Bluetooth headset.

[00217] MIPI may be configured to connect processor 110 to a peripheral device, such as display screen 194 or 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 CSI to perform the function of photographing 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, or the like. The GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI, etc.

[00219] The USB interface 130 is an interface that conforms to the USB standard specification, and may be, in particular, a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 may be configured to connect to a charger for charging the user equipment 100 and may also be configured to transfer data between the user equipment 100 and peripheral devices. The USB interface 130 may also be configured to connect to a headset to play audio through the headset. The interface can 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 to 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 multiple interface connection methods.

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

[00222] Power management module 141 is configured to connect to battery 142, charging management module 140, and processor 110. Power management module 141 receives input from battery 142 and/or charging management 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. Power management module 141 may also be configured to monitor parameters such as battery capacity, battery cycle count, and battery health status (power leakage and impedance). In some other embodiments, the power management module 141 may also be located in the processor 110. In some other embodiments, the power management module 141 and the charging control module 140 may also be located in the same device.

[00223] The wireless communication function of the 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 antenna UE 100 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 combination 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 an electromagnetic wave through the antenna 1, perform processing such as filtering and amplifying the received electromagnetic wave, and transmit the processed electromagnetic wave to a processor of the modem 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 of the functional modules of the mobile communication module 150 may be located in the processor 110. In some embodiments, the mobile communication module 150 may be located in the processor 110. at least some functional modules of the mobile communication module 150 may be configured in the same device as at least some 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, or the like) or displays an image or video through the 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 communication module 150 or other functional module may be located in a single 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) network), Bluetooth ( BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC) and 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 using 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 gain for the signal to be sent and convert the signal into an electromagnetic wave for radiation using antenna 2.

[00228] In some embodiments, antenna 1 and mobile communications module 150 of UE 100 are coupled, and antenna 2 and wireless communications 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, etc. For example, a wireless communications technology may include, but is not limited to, global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access access, CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long-term development term evolution, LTE), BT, GNSS, WLAN, NFC, FM, IR technology and/or the like. GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system system, QZSS) and/or satellite based augmentation systems (SBAS).

[00229] The UE 100 implements the display function using a graphics processor, display screen 194, application processor, or the like. The GPU 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 graphics rendering. Processor 110 may include one or more graphics processors and execute software instructions to generate or modify display 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), organic light-emitting diode (OLED), active-matrix organic light emitting diode (AMOLED), flexible LED (flex light -emitting diode, FLED), Miniled, Micro LED, Micro-OLED, light emitting diodes with quantum dots (quantum dot light emitting diodes, QLED) and the like. In some embodiments, the UE 100 may include one or N display screens 194. N is a positive integer greater than 1.

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

[00232] The ISP is configured to process data returned by camera 193. For example, when a photograph is taken, the shutter is released. Light is transmitted to the camera's photosensitive element through the lens, and the optical signal is converted into an electrical signal. The photosensitive element of the camera transmits the 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 exposure and color temperature of the photographed scene. In some embodiments, the ISP may be located in camera 193.

[00233] 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 complementary metal-oxide-semiconductor (CMOS) phototransistor. 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. DSP converts the digital image signal into a standard image signal in RGB and YUV formats. In some embodiments, the 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 the digital signal and may further process another digital signal in addition to the digital image signal. For example, when the 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. The UE 100 may support one or more video codecs. Thus, the UE 100 can play back or record video in a variety of encoding 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 may 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 to 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 perform various functional applications and process data 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 an image playback function), and the like. The data storage area may store data (eg, audio data and address book) and the like created when using the UE 100. In addition, the internal memory 121 may include high-speed random access memory or may include 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] Audio module 170 is configured to convert digital audio information to an output analog audio signal and is further configured to convert an analog audio input to a digital audio signal. Audio module 170 may be further configured to encode and decode an audio signal. In some embodiments, the audio module 170 may be located in the processor 110, or some functional modules of the audio module 170 are located in the processor 110.

[00241] Loudspeaker 170A, also referred to as a “horn loudspeaker,” is configured to convert an audio electrical signal into an audio signal. The UE 100 can be used to listen to music or answer a call in hands-free mode using the speaker 170A.

[00242] The 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 can be brought close to a human ear to receive the 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 moving closer to the microphone 170C to input an audio signal into the microphone 170C. At least one microphone 170C may be located in the UE 100. In some other embodiments, two microphones 170C may be located in the UE 100 to collect the audio signal and implement the noise reduction function. In some other embodiments, three, four, or more microphones 170C may alternatively be placed in the UE 100 to collect an audio signal, implement noise reduction, recognize an audio source, implement a directional recording function, or 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, the pressure sensor 180A may be located on the 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. The UE 100 determines the pressure force based on the change in capacitance. 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. The 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 verification instruction is executed. When a touch operation whose touch force is greater than or equal to the first pressure threshold is performed on the SMS message application icon, the instruction to create a new SMS message is executed.

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

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

[00249] The acceleration sensor 180E can 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 further configured to sense the position of an electronic device and can be used in applications such as landscape/portrait mode switching and pedometer.

[00250] Distance sensor 180F is configured to measure distance. The UE 100 can measure distance via infrared or laser. In some embodiments, in a photography scenario, the UE 100 may measure a distance using the 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. The UE 100 detects infrared light reflected from a nearby object using a photodiode. When sufficient reflected light is detected, the UE 100 may determine that there is an object near the UE 100. When sufficient reflected light is detected, the UE 100 may determine that there is an object near the UE 100. The UE 100 can detect, using the optical proximity sensor 180G, that the user is holding the UE 100 close to the ear for a call, so that automatic screen shutdown is implemented to achieve power saving. The 180G optical proximity sensor can be further 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 the brightness of the ambient light. The UE 100 may adaptively adjust the brightness of the display screen 194 in accordance with the perceived brightness of ambient light. The 180L ambient light sensor can be optionally configured to automatically adjust white balance during 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 unlocking, application lock access, fingerprint photography, fingerprint-based call answering, etc. using the fingerprint collected 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 temperature sensor 180J exceeds a threshold, UE 100 reduces the performance of the processor adjacent to temperature sensor 180J to reduce power consumption and implement thermal protection. In some other embodiments, when the temperature is below another threshold, the UE 100 heats the battery 142 to avoid a low temperature-induced shutdown of the UE 100. In some other embodiments, when the temperature is lower than another threshold, the UE 100 increases the output voltage of the battery 142 to avoid abnormal shutdown caused by the low temperature.

[00255] The 180K touch sensor is also called 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 adjacent to the touch sensor 180K. The touch sensor may transmit the detected touch operation to an application processor to determine the type of touch event. The touch sensor 180K may provide visual output associated with a touch operation using the display screen 194 . In some other embodiments, the touch sensor 180K may be alternatively located on the surface of the UE 100 and located in a position different from the position of the display screen 194.

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

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

[00258] The electric motor 191 may generate a vibration prompt. Motor 191 may be configured to provide a vibration cue for an incoming call and may be further configured to provide touch vibration feedback. For example, touch operations performed in different applications (such as photography and audio playback) may correspond to different vibration feedback effects. For touch operations performed on different areas of the display screen 194, the motor 191 may also correspond to different vibration feedback effects. Different use scenarios (such as time prompt, information acquisition, alarm clock and game) 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 battery charging and replacement status, and may be configured to indicate a message, missed call, notification, or the like.

[00260] 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. The 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. Multiple cards may be inserted into the same SIM card interface 195. Multiple cards can be of the same or different types. The SIM card interface 195 may further be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with an external memory card. The UE 100 communicates with the network using a SIM card to implement functions such as calling and data transfer. In some embodiments, the UE 100 uses an eSIM, that is, an embedded SIM card. The eSIM card may be embedded in the UE 100 and cannot be separated from the UE 100.

[00261] Embodiments of the present invention further provide a system of chips, the system of chips includes at least one processor, a memory and an interface circuit, the memory, a transceiver and said at least one processor are connected to each other by a line, and said at least at least one memory stores instructions; and when the instructions are 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 when they are executed on the computer, resulting in the implementation of the flowchart of any embodiment of the method in Fig.5 - Fig. 9.

[00263] Embodiments of the present invention further provide a computer program product. When the computer program product is running on a processor, the flowchart of any method embodiment 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 executed by a processor. The program instruction may be generated by a 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 drive disk, removable magnetic disk, CD-ROM, or any other form of storage medium well known in the art. For example, a storage medium is coupled to a 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 media may be located in an ASIC. In addition, the ASIC may be located in the computing device. Of course, the processor and storage medium may be used as discrete assemblies existing in a computing device.

[00265] One of ordinary skill in the art may appreciate that all or some of the processes of the methods in the embodiments may be implemented by a computer program instructing the corresponding 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 executed. The above-mentioned storage medium includes: a medium such as ROM, RAM, magnetic disk or optical disk, which can store program code.

Claims (71)

1. A method for processing a network connection, comprising: connecting the UE to both a 4G base station and a 5G base station using dual radio access network connectivity technology; when the UE satisfies the preset condition, sending a message to the network, wherein the message is used to release a connection between the UE and the 4G base station or 5G base station; wherein the preset condition contains at least one of: The UE is in a screen-on state and the UE's data rate is less than or equal to the first preset rate; The UE is in a screen-on state and the size of a data packet to be transmitted by the UE is less than or equal to a first preset threshold; UE mobile data function is disabled; 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 UE's data rate is less than or equal to the second preset rate; or The UE is in a screen-off state and the size of a data packet to be transmitted by the UE is less than or equal to a second preset threshold. 2. The method according to claim 1, in which the dual connection technology is that the UE independently uses the physical resources of two base stations simultaneously in the RRC radio resource control connection mode for transmission. 3. The method as claimed in claim 1 or 2, wherein the UE data rate comprises the UE data rate for downlink data. 4. Method according to any one of paragraphs. 1-3, wherein the method additionally contains: after the connection between the UE and the 4G base station or 5G base station is released, the UE does not send an LTE or NR measurement report to the network. 5. Method according to any one of paragraphs. 1-4, wherein the method additionally contains: The UE disables the LTE or NR measurement function or disables the function of sending an LTE or NR measurement report to the network when the UE satisfies a preset condition. 6. The method according to claim 4 or 5, wherein the measurement report contains at least one of: ID, received reference signal power RSRP, or received reference signal quality RSRQ. 7. Method according to any one of paragraphs. 1-6, wherein the method additionally contains: after the connection between the UE and the 4G base station or 5G base station is released, the icon displayed on the UE interface is not changed, and the icon is used to indicate the wireless access network or wireless connection technology used by the UE during communication. 8. Method according to any one of paragraphs. 1-7, in which the LTE-NR dual connectivity technology determines a primary MCG cell group and a secondary SCG cell group, and the message includes an SCG channel failure message. 9. The method of claim 8, wherein the SCG channel failure message comprises a SCGFailureInformation signaling message including a failureType parameter of the failure. 10. The method of claim 9, wherein the failureType is a timer-related parameter. 11. The method according to any one of claims 1 to 10, wherein sending a message to the network, wherein the message is used to release a connection between the UE and a 4G base station or a 5G base station, includes: sending a message to the 5G base station to cause the 5G base station to issue an instruction to release the connection between the UE and the 4G base station, or sending a message to the 4G base station to cause the 4G base station to issue an instruction to release the connection between the UE and the 5G base station. 12. The method according to any one of claims 1 to 11, wherein releasing the connection between the UE and the 4G base station or 5G base station includes releasing a radio resource occupied at the base station side when the connection between the UE and the 4G base station or 5G base station is configured. 13. Method according to any one of paragraphs. 1-12, wherein the method additionally contains: after sending the message to the network, receiving a first RRC reconfiguration message sent from the network, wherein the first RRC reconfiguration message is used to instruct the UE to release a connection between the UE and the 4G base station or 5G base station. 14. The method of claim 13, wherein the first RRC reconfiguration message contains a release field. 15. Method according to any one of paragraphs. 1-14, wherein the method additionally contains: sending an RRC reconfiguration response message to the network, wherein the RRC reconfiguration response message is used to notify that the connection between the UE and the 4G base station or 5G base station has already been released at the UE side. 16. Method according to any one of paragraphs. 1-15, wherein the method additionally contains: After releasing the connection between the UE and the 4G base station or 5G base station, when the UE does not satisfy the preset condition, the UE sends an LTE or NR measurement report to the network. 17. The method according to claim 16, wherein the method additionally contains: after the UE sends an LTE or NR measurement report to the network, the UE receives a signaling message from the network, where the signaling message is a second RRC reconfiguration message used to re-establish the connection between the UE and the 4G base station or 5G base station. 18. Method according to any one of paragraphs. 1-17, wherein the network includes a 5G base station or a 4G base station. 19. Method according to any one of paragraphs. 1-18, in which the network deployment type is a non-standalone NSA network. 20. An electronic device for processing a network connection, comprising: non-short-term memory containing instructions; And a processor coupled to a non-short-term memory, wherein the instructions, when executed by the processor, cause the electronic device to perform the method of any one of claims. 1-19. 21. A computer storage medium containing instructions that, when executed by a processor, cause a device to perform the method of any one of claims. 1-19. 22. A system chip for processing a network connection, comprising an application processor and a baseband processor, wherein the baseband processor is configured to connect the user equipment UE to both the 4G base station and the 5G base station using dual radio access network connectivity technology; the application processor is configured to determine that the UE satisfies a preset condition; And the baseband processor is further configured to: when the application processor determines that the UE satisfies the preset condition, release the connection between the UE and the 4G base station or the 5G base station; wherein the preset condition contains at least one of: The UE is in a screen-on state and the UE's data rate is less than or equal to the first preset rate; The UE is in a screen-on state and the size of a data packet to be transmitted by the UE is less than or equal to a first preset threshold; UE mobile data function is disabled; 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 UE's data rate is less than or equal to the preset rate; or The UE is in a screen-off state and the size of a data packet to be transmitted by the UE is less than or equal to a second preset threshold. 23. The microcircuit according to claim 22, wherein the microcircuit contains an application processor and a baseband processor configured to perform the method according to any one of claims. 1-19. 24. A network connection processing chip used in a user equipment UE, comprising an application processor, wherein the application processor is configured to: determining that the UE satisfies a predetermined condition when the UE is connected to both the first base station and the second base station using a radio access network dual connection technology; sending a first message to a baseband processor at the UE when it is determined that the UE satisfies a preset condition to instruct to release a connection between the UE and the first base station or the second base station; wherein the preset condition contains at least one of: The UE is in a screen-on state and the UE's data rate is less than or equal to the first preset rate; The UE is in a screen-on state and the size of a data packet to be transmitted by the UE is less than or equal to a first preset threshold; UE mobile data function is disabled; 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 UE's data rate is less than or equal to the second preset rate; or The UE is in a screen-off state and the size of a data packet to be transmitted by the UE is less than or equal to a second preset threshold. 25. The chip of claim 24, wherein the application processor is configured to send a first signaling message to the baseband processor to instruct the release of a connection between the UE and the first base station or the second base station, including: the application processor is configured to send a first signaling message to the baseband processor to instruct the baseband processor to send an SCG channel failure message to the second base station or to the first base station to instruct to release the connection between the UE and the first base station or the second base station station. 26. The chip of claim 24 or 25, wherein the application processor is further configured to: determining that the UE does not satisfy a preset condition after releasing the connection; And sending a second message to the baseband processor when it is determined that the UE does not satisfy a preset condition to give an order to establish a connection. 27. The chip according to claim 24, or 25, or 26, wherein the first base station is a 5G base station and the second base station is a 4G base station.

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