WO2020182016A1 - 网络连接的处理方法、相关设备及计算机存储介质 - Google Patents

网络连接的处理方法、相关设备及计算机存储介质 Download PDF

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Publication number
WO2020182016A1
WO2020182016A1 PCT/CN2020/077554 CN2020077554W WO2020182016A1 WO 2020182016 A1 WO2020182016 A1 WO 2020182016A1 CN 2020077554 W CN2020077554 W CN 2020077554W WO 2020182016 A1 WO2020182016 A1 WO 2020182016A1
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Prior art keywords
base station
connection
message
rrc
rrc layer
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PCT/CN2020/077554
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English (en)
French (fr)
Inventor
袁锴
何彦召
连超峰
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CA3132893A priority Critical patent/CA3132893A1/en
Priority to EP20770805.8A priority patent/EP3923636B1/en
Priority to KR1020217032433A priority patent/KR102623159B1/ko
Priority to JP2021553329A priority patent/JP7293386B2/ja
Priority to US17/437,526 priority patent/US11895583B2/en
Priority to AU2020238420A priority patent/AU2020238420C1/en
Priority to BR112021017737A priority patent/BR112021017737A2/pt
Priority to EP22210426.7A priority patent/EP4178275A1/en
Publication of WO2020182016A1 publication Critical patent/WO2020182016A1/zh
Priority to US18/543,754 priority patent/US20240236851A9/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
    • H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communication technology, in particular to a processing method of network connection, related equipment and computer storage medium.
  • LTE introduces the concept of dual connectivity in the R12 standard, that is, user equipment (UE) in a radio resource control (radio resource control, RRC) connection state can simultaneously use the independent physical resources of two base stations for transmission.
  • LTE dual-connection technology expands the application of carrier aggregation, which can effectively increase network capacity and improve network switching power capabilities.
  • LTE-NR dual connectivity is an important application technology in LTE dual connectivity, which is also called 4G-5G wireless access dual connectivity (EUTRN-NR dual connectivity, EN-DC), which mainly involves 4G E-UTRAN Access network (also known as LTE access network) and 5G’s new random access technology (NR) access network (referred to as NR access network), so that 5G networks can be deployed There is 4G LTE coverage to avoid waste of network resources.
  • EUTRN-NR dual connectivity EN-DC
  • 4G E-UTRAN Access network also known as LTE access network
  • 5G’s new random access technology (NR) access network referred to as NR access network
  • the UE can connect to a 4G base station (which can be called eNB) and a 5G base station (which can be called En-gNB) at the same time, and obtain high-rate and low-latency under the close interoperability of 4G and 5G. Wireless transmission service.
  • a 4G base station which can be called eNB
  • a 5G base station which can be called En-gNB
  • Wireless transmission service Compared with the single-access network working mode, for example, only 4G LTE technology is used for communication, the LTE dual-connection technology will cause higher power consumption of user equipment. And for some scenarios with low-use network requirements, the LTE access network can guarantee the networking requirements of user equipment. If the LTE-NR dual connection technology is still used, it will undoubtedly cause a waste of network resources and increase power consumption of user equipment.
  • the embodiment of the present invention discloses a network connection processing method, related equipment and computer storage medium, which can solve the problems of high power consumption of equipment and waste of network resources in the traditional technology in the low-speed network speed scene using LTE-NR dual-connection technology communication. .
  • the embodiment of the present invention discloses a network connection processing method, which is applied to the UE side of the user equipment.
  • the method includes: the UE connects to the 4G base station and the 5G base station through the LTE-NR dual connection technology.
  • the connection between the UE and the 4G base station or 5G base station is released.
  • the connection between the UE and the 4G base station is also called LTE connection
  • the connection between the UE and the 5G base station is also called NR connection.
  • the low network speed application scenario refers to the application scenario where the UE has a low network demand, which can be specifically reflected in the low data transmission rate of the UE or the small size of the data packet that the UE needs to transmit.
  • the UE detects any one or a combination of the following, it can determine that the UE is in a low network speed application scenario:
  • the UE is in a bright screen state and running at a low network speed.
  • Low network speed means that the UE's data transmission rate is low.
  • the UE's transmission rate for uplink data is less than the first preset rate, such as 50 kbit/s; it can also mean that the UE's transmission rate for downlink data is less than the second preset rate.
  • Set the rate such as 60 kbit/s; it can also mean that the transmission rate of the UE for all data including uplink data and downlink data is less than a third preset threshold, such as 100 kbit/s.
  • a third preset threshold such as 100 kbit/s.
  • the first type is to enable the function of running low-speed applications in the UE, and turn off the function of running high-speed applications in the UE.
  • Low-speed applications refer to applications deployed in UEs that require lower data transmission rates, such as requiring data transmission rates to be less than a preset rate, and high-speed applications refer to those deployed in UEs that require higher data transmission rates. Applications, such as video applications, etc.
  • the UE and other devices exchange heartbeat packets to maintain normal communication connections.
  • the third type is scenarios where the UE is running at a low network speed, such as game scenes or navigation scenes. This game scene requires high CPU usage. The navigation scene requires high heat dissipation performance of the device, but it has a higher network speed (ie data transmission rate). ) The requirements are relatively low.
  • the UE is in a bright screen state, and the size of the data packet that the UE needs to transmit is less than or equal to the first preset threshold.
  • the overall temperature of the UE is greater than or equal to the preset temperature threshold.
  • the overall temperature of the UE can usually be replaced by the temperature of some core devices in the UE, such as CPU temperature, SOC temperature, and battery temperature.
  • the UE is in the off-screen state and running at a low network speed.
  • the UE is running at a low speed when the screen is off.
  • the screen when the screen is off, it still supports the operation of background applications.
  • Function turn off the function of running high-speed applications.
  • the UE when the screen is off, the UE does not send or receive data, or only transmits data packets that keep the application in an awake state, such as heartbeat test packets or monitoring data packets. This type of data packet is sent periodically, and the data packet
  • the transmission rate and packet size are usually small. In this case, it can be considered that the UE is running at a low network speed.
  • the UE is in the off-screen state, and the size of the data packet that the UE needs to transmit is less than or equal to the second preset threshold.
  • the UE may further limit the data transmission rate. For example, the UE will make statistics that the data transmission rate of the UE is less than or equal to the duration corresponding to the preset rate. If the duration exceeds a certain threshold, it can be determined that the UE is in a low network speed application scenario; otherwise, it is determined that the UE is not in a low network speed Application scenarios.
  • the UE can preferentially disconnect the UE and the 5G base station, that is, prioritize the LTE-NR dual connection NR connection. For example, when the UE is in the LTE-NR dual connection state, when the UE is in the off-screen state and the data transmission rate of the UE is less than the preset rate, the connection between the UE and the 5G base station is released.
  • the UE includes a non-access NAS layer and a radio resource control RRC layer.
  • the application processor AP of the UE may send a first notification message to the NAS layer.
  • the first notification message is used to notify the UE that the UE is in a low-speed application scenario, or specifically used to notify the Identification conditions for low-speed application scenarios.
  • the NAS layer may send a second notification message to the RRC layer to notify the RRC layer to close the measurement of the connection between the UE and the 4G base station or 5G base station, that is, to close the LTE or NR measurement.
  • the RRC layer can turn off the connection communication function of the UE and the 4G base station or 5G base station, and turn off the measurement of the connection between the UE and the 4G base station or 5G base station, thereby turning off the LTE or NR measurement. It is convenient for the RRC layer to subsequently fail to send corresponding measurement reports to the network side (specifically, it may be a 4G base station or a 5G base station on the network side).
  • the application processor AP may send the first notification message to the NAS layer through a private command message or an existing command message.
  • the AP uses a private command message to send the first notification message, in this case, the UE side does not perceive the radio access network used by the UE for communication.
  • the display icon on the UE interface does not change at this time.
  • the display icon in LTE-NR dual connection is 4G-5G, and the icon is still displayed after releasing the LTE or NR connection. For 4G-5G.
  • the display icon in the UE interface will change, and the user can learn the base station or access network the UE is connected to through the display icon. For example, when the LTE-NR dual connection is connected, the display icon is 4G-5G, the display icon is 5G after the LTE connection is released, and the display icon is 4G after the NR connection is released.
  • the first notification message and the second notification message carry corresponding indication flags for indicating corresponding function operations or function notifications.
  • the first notification message carries "030201", which means that the UE does not support 5G communication, and can release the connection between the UE and the 5G base station, that is, releases the NR connection; when the first notification message carries "08030201", it means that the UE supports 5G communication and can Reestablish the connection between the UE and the 5G base station, that is, reestablish the NR connection.
  • the RRC layer can send a signaling message to the network side to correspondingly release the radio resources occupied on the base station side when the UE and the 4G or 5G base station are configured to connect, so as to correspond to the base station side. Release the connection between the UE and the 4G or 5G 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 base station occupied by the 4G base station when the UE and the 4G base station are configured to connect to the 4G base station.
  • the 4G base station side releases the connection between the UE and the 4G base station.
  • the RRC layer can send an SCG link failure message to the 5G base station to release the radio resources occupied on the 5G base station side during the configuration of the connection between the UE and the 5G base station, so as to release the UE on the 5G base station side Connection with 5G base station.
  • the SCG link failure message may have different specifications in different protocol versions. For example, in the R12 protocol version, it may be a SCGFailureInformation-r12-IEs signaling message, which includes parameters such as failure type failureType-r12.
  • This failure type includes any one or a combination of the following parameters: timer delay (that is, the delay between the UE and the network side to support data transmission), random access problem randomAccessProblem, the maximum number of RLC retransmissions rlc-MaxNumRetx( The maximum number of RLC retransmissions allowed), SCG link change failure scg-ChangeFailure (that is, SCG link switching is not supported), etc.
  • the UE also includes a non-access NAS layer.
  • the NAS layer may send a signaling message to the corresponding base station to notify the base station to release the connection configuration between the UE and the 4G or 5G base station.
  • the occupied radio resources are used to release the connection between the UE and the 4G or 5G base station on the base station side.
  • the NAS layer may send the first TAU message to the 5G base station for notifying that the 5G base station cannot support 5G connections.
  • the 5G base station determines that it does not support 5G connection communication, and can further release the radio resources occupied on the 5G base station side when the UE and 5G connection are configured to release the connection between the UE and the 5G base station on the 5G base station side .
  • the first TAU message carries an indication parameter for notifying that the communication function of the UE connecting with the 4G or 5G base station is not supported.
  • the indication information can be embodied in the form of designated characters, numeric values, character strings, or arrays.
  • the base station side may send a first RRC reconfiguration message to the RRC layer after releasing the connection between the UE and the base station (for example, a 4G or 5G base station), and the first RRC reconfiguration The message is used to instruct the RRC layer to release the radio resources occupied on the UE side during the configuration of the connection between the UE and the 4G or 5G base station, so as to release the connection between the UE and the 4G or 5G base station on the UE side.
  • the base station side for example, a 4G or 5G base station
  • the RRC layer can respond to the first RRC reconfiguration message to release the radio resources occupied on the UE side during the connection configuration of the UE and the 4G or 5G base station, so as to release the connection between the UE and the 4G or 5G base station on the UE side.
  • the first RRC reconfiguration message carries the release reeast field, which is specifically used to instruct the RRC layer to release the UE and 4G or 5G base station connection configuration related configuration parameters on the UE side, such as cell ID, downlink receive channel, frequency Wait.
  • the RRC layer may send a third notification message to the NAS layer to notify that the UE has been released currently
  • the connection between UE and 4G or 5G base station is improved.
  • the connection between the UE and the 4G or 5G base station can be reestablished, that is, the connection between the UE and the 4G base station and the 5G base station can be restored, which is beneficial to Improve the UE's network speed.
  • the specific implementation manner in which the UE is not in a low-speed application scenario is not limited.
  • the UE does not meet the 6 detection conditions of the above-mentioned UE in a low-speed application scenario, and the UE is in a bright screen state by way of example.
  • the UE includes a NAS layer and an RRC layer.
  • the UE's application processor AP determines that the UE is not in a low-speed application scenario, it can send a fourth notification message to the NAS layer to notify the UE that the UE is not in a low-speed application scenario and the connection between the UE and the 4G or 5G base station needs to be re-established .
  • the NAS layer sends a fifth notification message to the RRC layer to notify the RRC layer to support the connection between the UE and the 4G or 5G base station, and resume or start the measurement for the connection between the UE and the 4G or 5G base station. , That is, start LTE or NR measurement.
  • the RRC layer responds to the fifth notification message to start LTE or NR measurement, so that the subsequent UE can send a measurement report to the corresponding base station.
  • the RRC layer may send a sixth notification message to the 4G or 5G base station to notify the reconfiguration of the radio resources that the UE needs to occupy on the side of the 4G or 5G base station when the 4G or 5G base station is connected , To reestablish the connection between the UE and the 4G or 5G base station on the 4G or 5G base station side.
  • the base station side receives the sixth notification message and reconfigures the radio resources required to be occupied on the base station side when the UE is connected to the base station, so as to reestablish the connection between the UE and the base station on the base station side.
  • the NAS layer may send a signaling message to the 4G or 5G base station to notify the current support for the connection between the UE and the 4G or 5G base station to focus on the base station Establish a connection between the UE and a 4G or 5G base station.
  • the NAS layer can send a second TAU message to the 5G base station to notify the 5G base station to support the connection between the UE and the 5G base station.
  • the 5G base station after the 5G base station receives the second TAU message, it can reconfigure the radio resources required on the 5G base station side when the UE is connected to the 5G base station, so as to reestablish the connection between the UE and the 5G base station on the 5G base station side.
  • the 4G or 5G base station may send a second RRC reconfiguration message to the RRC layer to instruct the RRC layer to reconfigure the UE and 4G Or the radio resources that need to be occupied on the UE side when the 5G base station is connected to reestablish the connection between the UE and the 4G or 5G base station on the UE side.
  • the RRC layer in response to the second RRC reconfiguration message, reconfigures the radio resources required on the UE side when the UE is connected to the 4G or 5G base station, so as to reestablish the connection between the UE and the 4G or 5G base station on the UE side.
  • the second RRC reconfiguration message carries a spCellConfig configuration field, which carries configuration parameters to realize the re-establishment of the connection between the UE and the 4G or 5G base station.
  • the configuration parameters include the downlink receiving channel, frequency, and cell. Identification ID, etc.
  • an embodiment of the present invention provides a user equipment, and the computing device includes a functional unit for executing the method described in the first aspect.
  • an embodiment of the present invention provides yet another user equipment, including a memory and at least one processor coupled with the memory; the memory is used to store instructions, and the processor is used to execute the instructions; wherein, When the processor executes the instruction, the method described in the first aspect is executed.
  • the user equipment further includes a communication interface that communicates with the processor, and the communication interface is used to communicate with other devices (such as network devices, etc.) under the control of the processor. ) To communicate.
  • an embodiment of the present invention provides a wireless transceiver unit, including a non-access NAS entity and a radio resource control RRC entity.
  • the NAS entity is used to perform related implementation steps with the NAS layer as the execution subject in the above first aspect
  • the RRC entity is used to perform related implementation steps with the RRC layer as the execution subject in the first aspect above.
  • the NAS entity is used to:
  • the instructions of the first RRC reconfiguration message release the radio resources occupied on the UE side during the configuration of the connection between the UE and the 5G base station, so as to release the UE and the 5G base station on the UE side Connection.
  • an embodiment of the present invention provides a system chip (such as an SOC chip), including an application processor AP and a baseband processor BP.
  • the baseband processor includes the NAS layer and the RRC layer.
  • the application processor is used to determine whether the UE is in a low network speed application scenario, and the baseband processor is used to release the connection between the UE and a 4G or 5G base station when the UE is in a low network speed application scenario.
  • the baseband processor is used to connect the user equipment UE to the 4G base station and the 5G base station through the wireless access network LTE-NR dual connection technology;
  • the application processor is configured to determine that the UE is in an off-screen state, and the data transmission rate of the UE is less than or equal to a preset rate;
  • the baseband processor is also used to release the connection between the UE and the 5G base station when the UE is in the off-screen state and the data transmission rate of the UE is less than or equal to the preset rate.
  • a computer-readable storage medium stores program codes for network connection processing.
  • the program code includes instructions for executing the method described in the first aspect above.
  • Figure 1 is a schematic diagram of a system network framework provided by an embodiment of the present invention.
  • Fig. 2 is a schematic diagram of layered communication of a user equipment interface protocol provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of communication in which a user equipment perceives a data bearer according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of communication for sensing data bearer at the network side according to an embodiment of the present invention.
  • Fig. 5 is a schematic flowchart of a network connection processing method provided by an embodiment of the present invention.
  • Fig. 6 is a schematic diagram of an interface for displaying icon changes provided by an embodiment of the present invention.
  • FIGS 7-9 are schematic flowcharts of other network connection processing methods provided by embodiments of the present invention.
  • FIG. 10 is a schematic structural diagram of a system chip provided by an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a wireless transceiver unit provided by an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a user equipment provided by an embodiment of the present invention.
  • the UE is connected to two base stations at the same time, which are called a master base station (master eNB, MeNB) and a secondary base station (secondary eNB, SeNB).
  • Dual connectivity can implement carrier aggregation.
  • Carrier aggregation is specifically carried at the media access control (MAC) layer separation, and the MAC layer is required to synchronize the physical layer resources of the two base stations.
  • the bearer separation of dual connectivity is carried out at the packet data convergence protocol (PDCP) layer, and the two base stations can independently schedule physical layer resources without strict synchronization.
  • PDCP packet data convergence protocol
  • FIG. 1 shows a schematic diagram of a system network framework applicable to LTE-NR dual connectivity technology.
  • the system network framework shown in FIG. 1 includes a primary base station MeNB, a secondary base station SeNB, a user equipment UE, a mobility management entity (MME), and a serving-gateway (S-GW).
  • the respective numbers of the primary base station, secondary base station, and user equipment are not limited, and one is taken as an example here, which does not constitute a limitation.
  • the base station (specifically, MeNB or SeNB) provides an air interface for users, and the user equipment UE is wirelessly connected to the base station. Further, the base station is connected to the operator's core network through a wire to realize business communication.
  • User equipment UE refers to equipment that supports networking, which may include but is not limited to mobile phones, tablet computers (table personal computers), personal digital assistants (personal digital assistants, PDAs), mobile internet devices (mobile internet devices, MID), Wearable devices (wearable devices) and other devices that support network communication.
  • networking may include but is not limited to mobile phones, tablet computers (table personal computers), personal digital assistants (personal digital assistants, PDAs), mobile internet devices (mobile internet devices, MID), Wearable devices (wearable devices) and other devices that support network communication.
  • the mobility management entity MME a network element of the core network, is mainly responsible for providing non-standalone (NSA) networking signaling transmission, user authentication, and roaming management.
  • the service gateway S-GW is mainly responsible for the processing of local network user data, such as the routing or forwarding of packet data.
  • the primary base station MeNB and the mobility management entity MME are connected through the S1-C interface, and the primary base station MeNB and the serving gateway S-GW are connected through the S1-U interface.
  • the primary base station MeNB and the secondary base station SeNB can be connected through the X2-C interface, and the secondary base station SeNB can also be connected to the S-GW through the S1-U interface according to actual service requirements.
  • the primary base station MeNB can generate an RRC message after performing communication coordination with the secondary base station SeNB through the X2-C interface, and then forward it to the UE.
  • an interface refers to the way of information exchange between different network elements, and the interface protocols used for communication between different interfaces may be different.
  • the interface protocol of the wireless standard is divided into three layers: L1 physical layer (PHY), L2 data link layer, and L3 network layer.
  • Fig. 2 exemplarily shows a schematic diagram of hierarchical communication of the interface protocol of the user equipment UE.
  • the L1 physical layer PHY is located at the bottom layer and is mainly responsible for processing modulation and demodulation, antenna mapping or other telecom physical layer functions.
  • the L2 data link layer includes a PDCP layer, a radio link control (radio link control, RLC) layer, and a MAC layer.
  • the PDCP layer is mainly responsible for performing packet header compression to reduce the bit traffic transmitted by the wireless interface.
  • the RLC layer is mainly responsible for processing such as segmentation and connection, and sequence control of high-level data.
  • the MAC layer is mainly responsible for hybrid automatic repeat request (HARQ) retransmission and uplink and downlink scheduling.
  • HARQ hybrid automatic repeat request
  • the LTE-NR dual connectivity technology can specifically implement carrier aggregation and separation at the L2 data link layer. Specifically, as described above, carrier aggregation is specifically carried at the medium access control (MAC) layer separation.
  • the bearer separation of dual connectivity is implemented at the Packet Data Convergence Protocol (PDCP) layer.
  • PDCP Packet Data Convergence Protocol
  • the L3 network layer includes the non-access stratum (NAS) and the RRC layer.
  • the non-access layer NAS can be used to transmit user information or control information, such as 4G/5G communication link or service establishment, release, and mobility management information.
  • the protocol layer below the NAS layer may also be referred to as an access stratum (AS).
  • the RRC layer supports the signaling protocol of multiple functions between the user equipment UE and the base station eNB, broadcasts system messages of the NAS layer and AS layer, RRC connection establishment, maintenance and release, and end-to-end radio bearers (such as the wireless connection between the UE and the network side).
  • the establishment, modification and release of network access links, and mobile management including UE measurement reports, cell switching and reselection functions.
  • the UE can communicate with the network side through the L3 network layer to implement operations such as the establishment and release of 4G and 5G access networks, which are described in detail below in this application.
  • the LTE-NR dual connection technology defines a master cell group (MCG) and a secondary cell group (SCG), and according to different data separation and forwarding methods, data bearers are divided into three categories: MCG bearer , SCG bearer and split bearer.
  • MCG master cell group
  • SCG secondary cell group
  • split bearer a category of data bearers
  • the primary cell group MCG refers to a cluster of cells where at least one primary base station MeNB is located
  • a secondary cell group refers to a cluster of cells where at least one secondary base station SeNB is located.
  • FIG. 3 and FIG. 4 respectively show the communication links of the respective data bearers of the UE and the network side.
  • the UE senses three types of data bearers, namely: MCG bearer, SCG bearer, and split bearer.
  • MCG bearer means that data is routed from the S-GW of the core network to the main base station MeNB, and is directly forwarded by the MeNB to the UE.
  • SCG bearer means that data is routed from the S-GW of the core network to the secondary base station SeNB, and is directly forwarded by the SeNB to the UE.
  • Split bearer means that data is separated on the base station side and can be forwarded by the primary base station MeNB or secondary base station SeNB to the UE, or the primary base station MeNB or secondary base station SeNB can simultaneously transmit data and provide services for the UE according to a preset separation ratio.
  • the communication link (also called MCG link) used for data communication is: LTE PDCP/NR PDCP-LTE RLC-LTE MAC.
  • the communication link (also referred to as an SCG link) used for data communication is: NR PDCP-NR RLC-NR MAC.
  • the communication link (also called a Split link) used for data communication is: NR PDCP-LTE RLC-LTE MAC, or NR PDCP-NR RLC-LTE MAC.
  • the SCG link since the SCG link only uses 5G and NR network resources, the SCG link can also be called an NR link.
  • the MCG link uses 4G LTE network resources, and the MCG link may also be called an LTE link.
  • FIG. 4 for a schematic diagram of communication of the network side sensing data bearer.
  • MCG bearer terminated by master node (MN, specifically, MeNB) SCG bearer terminated by MN
  • Split terminated by MN The bearer, the secondary node (secondary node, SN, which may specifically refer to the MCG bearer terminated by the secondary base station SeNB), the SN terminated SCG bearer, and the SN terminated separate Split bearer.
  • the bearer terminated by the MN refers to the radio bearer of the PDCP layer at the primary base station MeNB, but not the radio bearer at the secondary base station SeNB.
  • the SN-terminated bearer refers to the radio bearer of the PDCP layer in the secondary base station SeNB, but not the radio bearer of the primary base station MeNB.
  • the communication link for data communication is: LTE PDCP/NR PDCP-LTE RLC-LTE MAC.
  • the communication link for data communication is: NR PDCP-LTE RLC-LTE MAC, or NR PDCP-NR RLC-LTE MAC.
  • the details can be selected according to actual needs without limitation.
  • the details are shown in the figure, and will not be repeated here.
  • SA standalone
  • NSA non-standalone
  • independent networking refers to building an existing network, including a new base station (En-gNB), a communication link (NR link), and a core network.
  • Non-independent networking refers to the deployment of 5G networks using existing 4G infrastructure.
  • the non-independent networking NAS based on LTE-NR dual-connection technology enables the 5G core network and access network to be deployed step by step, which is conducive to the rapid deployment and application of 5G.
  • LTE-NR dual-connection technology can expand the coverage of 5G networks and improve network performance. It can be seen that the LTE-NR dual-connection technology is an important application scenario in the 5G non-independent networking NAS scenario.
  • the low network speed application scenario refers to the application scenario where the user equipment has a low network demand. Specifically, it can refer to the data transmission rate of the user equipment UE (referred to as the data transmission rate) is small, or the data packet that the UE needs to transmit Smaller application scenarios. Conversely, application scenarios where the user equipment has a high network demand can be referred to as high-speed application scenarios. Illustratively, the following possible low-speed application scenarios are given below:
  • the UE is in a bright screen state and running at a low network speed, that is, the data transmission rate of the UE is less than or equal to the preset rate.
  • low network speed means that the data transmission rate of the UE is small, for example, less than or equal to the preset rate.
  • the low network speed may specifically mean that the transmission rate of the UE's uplink data is small, for example, less than or equal to the first preset rate; it may also refer to that the transmission rate of the UE's downlink data is small, for example, less than or equal to the second preset rate Set rate; it can also mean that the transmission rate of all data including the UE's uplink data and downlink data is relatively small, for example, less than or equal to the third preset rate.
  • the data transmission rate refers to the number of bits that the UE supports to transmit data in a unit time, for example, 50 bits per second bit/s.
  • the preset rate can be customized by the system, for example, customized according to user preferences or actual needs, or a value obtained by statistics based on a large amount of experimental data.
  • the first preset rate, the second preset rate, and the third preset rate involved in this application are all customized settings of the system, and they may be the same or different, and are not limited.
  • the first is to enable the function of running low-speed applications and turn off the function of running high-speed applications in the UE.
  • the UE can set the following application functions in the power saving mode: allow low-speed applications to run, prohibit high-speed applications from running, that is, enable the function of running low-speed applications , Turn off the function of running high-speed applications. Understandably, after turning off the function of running high-speed applications in the UE, only low-speed applications are allowed to run in the UE. Since the allowable data transmission rate in these low-speed applications is relatively small, the UE can determine that the UE is in low-speed operation at this time.
  • the sum of their data transmission rates is also relatively small, for example, less than the preset rate, which can also meet the needs of low-speed network use.
  • a low-speed application refers to an application installed in the UE that requires a relatively low data transmission rate, for example, the transmission rate of the data to be transmitted in the application is required to be less than the fourth preset rate.
  • the low-speed application can be customized by the system or manually customized by the user, such as applications such as camera, phone, text message, and memo.
  • a high-speed application refers to an application installed in the UE that requires a higher data transmission rate, for example, the data transmission rate is required to be greater than or equal to the fifth preset rate.
  • the high-speed application can also be customized by the system, or customized by the user according to personal preferences, such as music applications and video applications.
  • the UE in order to rule out that the UE is operating at a short-term low network speed, or to rule out misjudgment, the UE increases the duration judgment condition. Specifically, the UE can obtain the duration of the UE's data transmission rate being less than or equal to the preset rate. When the duration is greater than or equal to a certain threshold (for example, 1 minute), etc., it can be determined that the UE is in low network speed operation at this time. Otherwise, it is still determined that the UE is not operating at a low network speed. That is, the identification condition for the UE in a low network speed application scenario may specifically be: the UE is in a bright screen state, and the data transmission rate of the UE within a period of time is less than or equal to the preset rate.
  • a certain threshold for example, 1 minute
  • the UE and other devices exchange heartbeat packets to maintain a normal communication connection.
  • the UE when the UE is not in business communication with other devices (for example, base stations), that is, the UE does not need to transmit service data.
  • the UE In order to maintain the communication connection between the UE and other devices, usually the UE can periodically send heartbeat packets to other devices. To notify the UE to maintain a communication connection with other devices.
  • the data transmission rate of the heartbeat packet is usually relatively small, such as a few kb/s.
  • the size of the heartbeat packet is also relatively small, for example, a few kb.
  • the heartbeat packet can be an empty packet, that is, it only carries the header and does not carry the service data.
  • the third type is scenarios where the UE is operating at a low network speed, such as game scenarios and navigation scenarios.
  • the UE in a game scenario, the UE is running a game application.
  • game applications only require a higher operating rate of a central processing unit (CPU) in the UE, and in comparison, require a lower data transmission rate (ie, network rate) 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.
  • CPU central processing unit
  • the screen state of the UE can be divided into a variety of states, which can be a bright screen state, a screen off state, a locked screen state, and an unlocked state.
  • the UE can be in a bright screen unlocked state and a bright screen locked screen state.
  • the UE is also in the locked screen state when the screen is off.
  • the screen state of the UE can be specifically identified through a software program or a hardware detection method. Taking the software program detection method as an example, the UE can first determine the on-off state of the screen through the screen display value isScreenOn defined in the human-computer interaction isInteractive code under the powermanager powermanager.
  • the UE when isScreenOn is true, the UE is in the on-screen state; Otherwise, it is determined that the UE is in the off-screen state. After determining that the UE is in the on-screen state, the UE can then use the screen lock isScreenLocked code to detect whether the UE is further locked. If it is locked, it can be determined that the UE is in the locked-screen state. Specifically, the UE can be in the on-screen locked state; otherwise, It is determined that the UE is in the on-screen state, specifically the UE is in the on-screen unlocked state.
  • the UE may determine the screen status of the UE through an Android broadcast message sent by its own system. Specifically, when the Android broadcast message is used to indicate that the screen is turned on, it can be determined that the UE is in the on-screen state; when it is used to indicate that the screen is off, it can be determined that the UE is in the off-screen state; when it is used to indicate that the screen is locked, it can be Make sure that the UE is in a locked screen state and so on. There may be multiple ways of identifying the screen state of the UE, which are not listed here in the present invention.
  • the UE is in a bright screen state, and the size of the data packet that the UE needs to transmit is less than or equal to the first preset threshold.
  • the UE can not only consider the data transmission rate but also the amount of data that the UE needs to transmit (that is, the size of the data packet that needs to be transmitted).
  • the size of the data packet that the UE needs to transmit may specifically refer to the size of all data packets that the UE needs to transmit in the application (that is, the amount of data that needs to be transmitted), or the size of the data packet that the UE needs to transmit in a unit time.
  • the UE when the UE is in the bright screen state, if the size of the data packet that the UE needs to transmit is large, for example, greater than the first preset size threshold, the UE may consider that the current communication load of its own is large, that is, the size of the data packet that needs to be transmitted is large. The data packet or data volume is relatively large, and the network demand is relatively high. Accordingly, the UE may consider itself to be in a high network speed application scenario. Conversely, if the size of the data packet that the UE needs to transmit is small, the UE can think that its own communication load is small, that is, the data packet or the amount of data that needs to be transmitted is small, and the network demand is not high. Accordingly, the UE can think that I am in a low-speed application scenario at this time.
  • the UE is in a disconnected state, that is, the mobile data communication function of the UE is turned off.
  • the UE is in any screen state (such as the screen on or off, etc.), when the UE cannot connect to the network (specifically, it can refer to disconnecting the UE’s mobile data communication function or mobile data connection function), it can be directly determined that the UE is in a low network Fast application scenarios.
  • the disconnected state here does not mean that the network is completely and strictly disconnected in a true sense, but refers to disconnecting the mobile network used by the user equipment for communication, and does not affect the user equipment for communicating with other data networks.
  • the mobile data communication function of the UE may be turned off, for example, the 2G, 3G, or 4G Internet access function of the UE may be turned off, and the data network (such as the telephone network, etc.) between the UE and the base station eNB may be reserved.
  • the UE can still perform normal data communication with the base station.
  • complete disconnection means that the UE has no communication with all networks, and the UE exists as a crash. Since the UE does not enter any network, the network side cannot perceive the existence of the UE, and thus cannot perform network monitoring or monitoring on the UE.
  • the disconnected state of the mobile phone refers to turning off the mobile data connection function of the mobile phone, that is, turning off the Internet access function of the mobile network such as 2G, 3G, 4G, and 5G, but does not disconnect the normal communication between the mobile phone and other data networks , Such as the normal communication between the mobile phone and the base station side (core network, telephone network).
  • the mobile phone since the mobile phone is not disconnected from the telephone network on the base station side, and data communication between the mobile phone and the telephone network is not hindered, the mobile phone can normally answer or make calls.
  • the mobile phone is completely disconnected in the strict sense, the mobile phone is disconnected from all communication networks (including the core network on the base station side and the telephone network, etc.) in this scenario, and does not support mutual communication. At this time, it is completely disconnected
  • the data transmission function of the mobile phone for example, the mobile phone cannot answer or make calls at this time.
  • the overall temperature of the UE is greater than or equal to the preset temperature threshold.
  • the UE Regardless of whether the UE is in the on-screen or off-screen state, when the overall temperature of the UE is too high, for example, when the overall temperature is greater than or equal to the preset temperature threshold, it is easy to cause crashes, network disconnection, and severely burn the UE equipment, which can be burned.
  • the central processing unit (CPU) of the UE In order to reduce the temperature of the whole machine and protect the device itself, the UE needs to automatically shut down the running applications, for example, first shut down applications with high power consumption and high network speed requirements, such as video applications, and then shut down low power consumption and network speed requirements Lower applications, such as weather applications, calendar applications, etc.
  • the UE detects that the temperature of its entire machine is too high, it can be considered that the UE has currently closed applications with high network speed requirements, that is, closed high-speed applications in the UE, and the UE is in a low-speed application scenario.
  • the method of detecting the temperature of the UE is not limited.
  • the temperature of the UE can be detected and checked through the temperature sensor; or, when the temperature sensor is not installed in the UE , The temperature of the UE can be detected through third-party software installed in the UE (such as a temperature measurement application such as Master Lu).
  • the overall temperature of the UE refers to the sum of the temperatures of all components in the entire UE during operation. Since the temperature acquisition of each component has a certain error, this will cause the acquisition of the overall temperature of the UE to also be relatively slow. The accuracy or precision of the geodetic error is low. Therefore, in practical applications, the overall temperature of the UE is usually replaced by the temperature of some core components in the UE device, such as the CPU temperature of the central processing unit, the system on chip (SOC) temperature, and the battery temperature.
  • SOC system on chip
  • the CPU is the most important hardware for the overall performance of the UE, and its performance directly affects the performance of the entire UE. Therefore, the CPU temperature will be an important manifestation of the overall temperature. Taking the temperature of the whole machine as the CPU temperature as an example, the UE device can enter its own input and output system (basic input output system, BIOS) to obtain the CPU temperature; or the UE device can run CPU temperature obtaining software (such as Python script files, etc.), To get the CPU temperature. It is convenient to identify whether the application scenario where the UE is located is a high network speed application scenario or a low network speed application scenario based on the CPU temperature, which will not be repeated here.
  • BIOS basic input output system
  • the UE is in the off-screen state and running at a low network speed, that is, the data transmission rate of the UE is less than or equal to the preset rate.
  • the first is that in the off-screen state, the UE supports the operation of background applications, such as playing music.
  • UE can set the following application functions: allow low-speed applications to run, prohibit high-speed applications from running, that is, enable the function of running low-speed applications, and turn off the running of high-speed applications.
  • the sum of their data transmission rates is also relatively small, for example, less than the preset rate, which can also meet the needs of low-speed network use.
  • the user equipment when the UE is in the off-screen state, the user equipment usually does not send or receive data, or only maintains necessary data packets to ensure that the application is in the awake state, such as heartbeat test packets or monitoring data packets, etc.
  • this type of data Packets are sent and received periodically and the size of data packets is relatively small.
  • the user equipment has low requirements for network parameters and other network requirements, and the UE is considered to be operating at a low network speed, that is, in a low network speed application scenario.
  • the data transmission rate usually becomes relatively slow, for example, the data transmission rate is less than a preset rate. Therefore, without considering the recognition accuracy of low-speed application scenarios, when the UE detects that it is in the off-screen state, it can be directly considered that the UE is in a low-speed application scenario.
  • the UE is in the off-screen state, and the size of the data packet that the UE needs to transmit is less than or equal to the second preset threshold.
  • the UE In the off-screen state, the UE also has data transmission and reception, for example, the UE off-screen downloads data, and the off-screen transmits heartbeat packets.
  • the UE In order to meet the network demand of low network speed, in addition to considering the data transmission rate, the UE can also identify from the dimension of the amount of data that the UE needs to transmit (that is, the size of the data packet that needs to be transmitted).
  • the size of the data packet that the UE needs to transmit may be detected to determine whether the UE is in the low-speed application scenario. Specifically, when the size of the data packet that the UE needs to transmit is less than the second preset size threshold, the UE may consider that its own communication load is large and the network demand is high, and it is determined that the UE is not in a low network speed application scenario. Conversely, it is considered that the communication load of the UE is small and the network demand is low, and it is determined that the UE is in a low network speed application scenario.
  • a low network application scenario is an interactive heartbeat packet as an example.
  • the heartbeat packet mechanism is usually used to maintain the connection between the UE and the network side.
  • the UE may periodically send a heartbeat packet to the network side to notify the UE that there is currently a communication connection with the network side, so as to maintain a long connection between the UE and the network side.
  • the network side can also return a response packet to the UE to notify the network side that there is a communication connection between the UE and the network side.
  • the size of the heartbeat packet is very small, usually a few kb, or it can be an empty packet (that is, it does not carry any business data, but only carries the packet header data packet), etc.
  • the UE is obviously in a low-speed application scenario.
  • FIG. 5 is a schematic flowchart of a network connection processing method according to an embodiment of the present invention.
  • the method shown in Figure 5 includes the following implementation steps:
  • the application processor application processor, AP
  • the first signaling message is used to inform the UE that it is currently in a low-speed application scenario and can disconnect a certain access network connection in the LTE-NR dual connection.
  • the NAS layer receives the first signaling message.
  • the UE when the UE detects that it is in a low-speed application scenario, for example, when the application processor AP detects that the UE is in a low-speed application scenario, it may send the first signaling message to the NAS layer of the UE.
  • the first signaling message is used to notify the UE that it is in a low network application scenario and can release any access network connection in the LTE-NR dual connection.
  • the first signaling message may also be referred to as the first notification message, which is not limited in the present invention.
  • the specific implementation manner of the UE in the low network speed application scenario reference may be made to the relevant description in the foregoing embodiment, which is not repeated here.
  • the first signaling message may be a private command message, such as an attention (AT) command message; it may also be a traditional command message, such as an at ⁇ used to close the NR connection communication function (that is, close the 5G communication function). syscfgex command messages, etc.
  • the AP can send an AT command message to the NAS layer through the AT command interface to release the LTE or NR connection. In this case, the UE does not perceive the access network used in its own communication. After the UE releases the LTE or NR connection in the LTE-NR dual connection, the display icon on the UE interface will not change.
  • the user cannot know the access network connection used by the UE for current communication through the display icon, and cannot know whether the UE is currently releasing the LTE connection in the LTE-NR dual connection or the NR connection.
  • the display icon is used to identify the wireless access network or wireless connection communication technology used when the UE is connected to the network, such as LTE, NR, or LTE-NR.
  • the AP can send a traditional command message to the NAS layer to release the LTE or NR connection.
  • the AP can send an at ⁇ syscfgex command message to the NAS layer to close the NR connection communication function and release the NR connection.
  • the display icon on the UE interface will change. The user can learn the access network connection used by the UE for current communication through the display icon, that is, learn that the UE specifically releases the LTE connection or the NR connection in the LTE-NR dual connection.
  • the display icon can be customized by the system to distinguish the access network used by the UE to connect to the network.
  • the display icon can be the characters 4G, etc. .
  • FIG. 6 for a schematic diagram of a possible icon change of LTE-NR dual-connection handover.
  • (a) in Figure 6 shows that the UE uses LTE-NR dual connectivity technology to connect to the network to communicate with the 4G base station and 5G base station on the network side respectively, where (a) in Figure 6 is used to identify
  • the display icon of LTE-NR dual connection can be 4G-5G.
  • the first signaling message is used to notify the release of any access network connection in the LTE-NR dual connection, and the any access network can be an access network customized by the UE system.
  • the LTE or NR access network connection used for communication between the UE and the network side is released according to the actual network demand of the UE, which is hereinafter referred to as the LTE or NR connection.
  • the system can release the LTE connection by default; Conversely, when the current network demand of the UE is not high enough, for example, the size of the data packet that the UE currently needs to transmit is less than or equal to the preset third threshold, etc., the system can release the NR connection by default and reserve the LTE connection to ensure the UE’s Low-use network demand.
  • the preset first threshold, preset second threshold, and preset third threshold are all customized by the system, wherein the preset second threshold is less than the preset first threshold, and the preset second threshold and preset third threshold They can be equal or unequal, and this application is not limited.
  • the NR connection mentioned in this application refers to the connection between the UE and the 5G base station
  • the LTE connection refers to the connection between the UE and the 4G base station.
  • releasing the NR connection mentioned in this application refers to releasing the connection between the UE and the 5G base station
  • releasing the LTE connection refers to releasing the connection between the UE and the 4G base station.
  • the NAS layer sends a second signaling message to the RRC layer, where the second signaling message is used to notify the RRC layer that the LTE or NR connection communication is not supported.
  • the RRC layer receives the second signaling message.
  • the NAS layer can send a second signaling message (or a second notification message) to the RRC layer to notify that the RRC layer does not currently support LTE or NR connection communication, that is, the RRC layer cannot use LTE Or NR connection for data communication.
  • the second signaling message is also used to notify the RRC layer to close the measurement for the LTE or NR access network, which is hereinafter referred to as closing the LTE or NR measurement.
  • the second signaling message contains at least one indication flag, which is used to notify the RRC layer to perform corresponding functional operations.
  • the implementation form of the indication flag is not limited, for example, it can be a string, a numeric value, or an array.
  • the indicator bit is "00" it means that the RRC layer does not support dual connectivity communication using LTE or NR; "01” means that the RRC layer supports dual connectivity communication using LTE or NR; "00” means that the RRC layer does not support dual connectivity communication.
  • Use LTE or NR dual connectivity communication and turn off the LTE or NR measurement function; "11" indicates that the RRC layer supports the use of LTE or NR dual connectivity communication, and the LTE or NR measurement function is enabled.
  • the UE's AP when the UE's AP detects that the UE is in a low-speed application scenario, it can send the first signaling message to the UE's wireless modem modem module to notify the release of any of the LTE-NR dual connections. Inbound connection.
  • the modem module may specifically be a baseband processor (baseband processor, BP) deployed in the UE, which includes a NAS layer and an RRC layer.
  • baseband processor baseband processor
  • BP baseband processor
  • the modem module after the modem module introduces the first signaling message, it can send a second signaling message to the notification RRC layer through the NAS layer to notify the UE that it does not support LTE or NR connection communication, and close the LTE or NR measurement.
  • the second signaling message may also be used to notify the RRC layer to turn off the uplink data transmission function of the UE, turn off the reporting function of the LTE or NR measurement report, etc., for example, prohibit the UE from sending data to the network side, or sending LTE or NR measurement report etc.
  • the RRC layer closes the LTE or NR connection communication according to the indication of the second signaling message.
  • the RRC layer can close any communication function of the LTE or NR connection according to the indication of the second signaling message.
  • it can also turn off its own LTE or NR measurement to avoid sending the LTE or NR measurement report to the corresponding base station subsequently, referred to as the LTE or NR measurement report for short. That is, the RRC layer can turn off the reporting function of the LTE or NR measurement report, so that the network side (specifically, the base station on the network side) cannot receive the LTE or NR measurement report sent by the UE.
  • the LTE or NR measurement is specifically used to measure the signal quality of the communication link (ie, the LTE or NR link) of the LTE or NR access network, and the LTE or NR measurement also refers to the LTE or NR link measurement.
  • LTE and LTE link can be used interchangeably in this application, and are not limited.
  • the LTE or NR measurement report may include, but is not limited to, the measurement identification ID, the measurement result of the access network communication link (LTE or NR link), such as the received power of the downlink reference signal (reference signal received power, RSRP) , Information such as the received quality of the downlink reference signal (reference signal received quality, RSRQ).
  • the measurement identification ID such as the received power of the downlink reference signal (reference signal received power, RSRP)
  • RSRP reference signal received power
  • RSRQ received quality of the downlink reference signal
  • the RRC layer sends a third signaling message to the network side (network, NW).
  • NW network side
  • the third signaling message is used to notify the network side to release the radio resources occupied on the network side during the LTE or NR connection configuration, so as to release the network side. LTE or NR connection.
  • the network side NW receives the third signaling message.
  • the RRC layer may send the third signaling message to the network side through the undisconnected access network.
  • the third signaling message is used to notify the network side to release the radio resources (or network resources) occupied by the LTE or NR connection on the network side, so as to release the LTE or NR connection on the network side, that is, release the UE and the network side on the network side. 4G base station or 5G base station connection.
  • the RRC layer can send a third signaling message to the network side through the LTE access network to notify the radio resources occupied on the network side when the NR connection configuration is released, so as to release the NR on the network side.
  • Connect that is, release the connection between the UE and the 5G base station on the network side.
  • the third signaling message may be an SCG link failure message, which is specifically used to release the radio resources occupied by the NR connection on the network side, such as various functional layers included in the SCG link used for NR connection communication (such as NR PDCP, NR RLC, NR MAC and NR PHY) related radio resources, etc.
  • SCG link failure message which is specifically used to release the radio resources occupied by the NR connection on the network side, such as various functional layers included in the SCG link used for NR connection communication (such as NR PDCP, NR RLC, NR MAC and NR PHY) related radio resources, etc.
  • NR PHY-related radio resources Taking the release of NR PHY-related radio resources as an example, it can specifically release information such as the downlink receiving channel, frequency point, and cell identification ID.
  • the specific implementation of the SCG link failure message may be different.
  • the SCG link failure message may specifically be the SCGFailureInformation-r12-IEs signaling message, which includes parameters customized in the protocol, such as failureType-r12.
  • the failure type can specifically include any one or a combination of the following parameters: timer delay (that is, the delay for the UE and the network side to support data transmission), random access problem randomAccessProblem, RLC retransmission
  • timer delay that is, the delay for the UE and the network side to support data transmission
  • random access problem randomAccessProblem random access problem randomAccessProblem
  • RLC retransmission The maximum number of times rlc-MaxNumRetx (the maximum number of times the RLC is allowed to retransmit data packets), the SCG link change failure scg-ChangeFailure (that is, the switching of the SCG link is not supported), etc., are not limited by this application.
  • the RRC layer can send a third signaling message to the network side through the NR access network, which is specifically used to release the radio resources occupied by the LTE connection on the network side, such as the MCG link used for LTE connection communication It includes radio resources related to each functional layer (such as LTE PDCP, LTE RLC, LTE MAC, and LTE PHY).
  • the specific implementation of the third signaling message is not limited.
  • the network side can release the radio resources occupied by the LTE connection on the network side according to the instructions of the third signaling message, such as releasing the downlink receiving channel, frequency point, cell ID, etc. Information to release the LTE connection on the network side, that is, the connection between the UE and the 4G base station.
  • the third signaling message may also be used to notify the UE (specifically, the RRC layer of the UE) that the LTE or NR measurement has been turned off, and the reporting function of the LTE or NR measurement report is turned off. Accordingly, the network side cannot receive the LTE or NR measurement report sent by the UE side.
  • the network side sends a fourth signaling message to the RRC layer.
  • the fourth signaling message is used to notify the RRC layer to release the radio resources occupied on the UE side during the LTE or NR connection configuration, so as to release the LTE or NR connection on the UE side.
  • the RRC layer receives the fourth signaling message.
  • the RRC layer releases the LTE or NR connection on the UE side according to the indication of the fourth signaling message.
  • the network side can send a fourth signaling message to the RRC layer to notify the RRC layer to release the radio resources occupied by the UE side when the LTE or NR connection is configured to release the UE side LTE or NR connection, that is, release the connection between the UE and the 4G base station or 5G base station on the network side on the UE side.
  • the fourth signaling message may specifically be the first RRC reconfiguration message, used to notify the RRC layer to release the radio resources occupied on the UE side when the LTE or NR connection is configured or established. It may also be called resource configuration. information.
  • the first RRC reconfiguration message carries a release reeast field, which is used to indicate that the RRC layer releases the radio resources occupied on the UE side when the NR connection is configured, such as releasing NR PDCP, NR RLC, NR MAC As well as the radio resources related to the transmission function layer such as NR PHY, etc., it can specifically release the related configuration parameters involved in the network side configuration of the NR connection, such as parameters such as frequency point and cell identity.
  • the UE and the network side will release the NR connection first to switch the LTE-NR dual connection to the LTE access network connection.
  • Realize data communication under a single LTE connection which can avoid the problems of waste of network resources and high power consumption of equipment in the case of dual connections, which is conducive to saving network resources and improving the efficiency of network utilization.
  • 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 resources occupied on the UE side when the NR connection is released, and not to release the radio resources related to the LRRC layer.
  • the network side may send the fourth signaling message to the LRRC, and the LRRC forwards the fourth signaling message to the NRRC in response to the fourth signaling message to release the NR connection on the UE side; or the network side directly sends the fourth signaling message to the LRRC layer.
  • the signaling message is used to control the radio resources occupied on the UE side when the NR connection configuration is released through the NRRC.
  • the RRC layer may send a corresponding RRC configuration response message to the network side to notify the RRC layer that the LTE or NR connection on the UE side has been released.
  • the RRC layer may send a fifth signaling message to the NAS layer, where the fifth signaling message is used to notify the NAS layer that the LTE or NR connection on the UE side has been released.
  • the fifth signaling message may be sent to the NAS layer.
  • the fifth signaling message is used to notify the NAS layer that the radio resources occupied by the LTE or NR connection on the UE side have been released, and the LTE or NR connection on the UE side has been released. That is, the UE and the network can no longer communicate with each other using the released LTE or NR connection.
  • the fifth signaling message may also be called a third notification message, which is used to notify the UE that the LTE or NR connection has been released.
  • the fifth signaling message also includes at least one indicator flag, and the indicator flag is used to instruct the NAS layer to perform corresponding functional operations.
  • the indication flag For details of the indication flag, reference may be made to the relevant description in the foregoing embodiment, which is not repeated here.
  • the fifth signaling message carries the indication flag "0", which is used to indicate or notify the RRC layer that the LTE connection on the UE side has been released.
  • the fifth signaling message carries the indication flag "1", which is used to indicate or notify the RRC layer that the NR connection on the UE side has been released, which is not limited in this application.
  • the process steps of the method described in Fig. 7 are used to restore LTE-NR dual-connection communication.
  • the method shown in Figure 7 includes the following implementation steps:
  • S5108 When the UE's AP detects that the UE is not in a low-speed application scenario, it sends a sixth signaling message to the NAS layer.
  • the sixth signaling message is used to notify the UE that the UE is not in a low-speed application scenario and needs to be rebuilt or restored.
  • the NAS layer receives the sixth signaling message.
  • the UE there are many specific implementation methods for the UE not in a low-speed application scenario. For example, if the UE detects through the AP that the UE does not meet the judgment conditions of the low-speed application scenario mentioned above, it can be determined that the UE is not in a low-speed application scenario. High-speed application scenarios, or directly think that the UE is in a high-speed application scenario.
  • the judgment condition is: the UE is in the off-screen state, and the data transmission rate of the UE is less than or equal to the preset threshold, then when the UE's AP detects that the UE enters the off-screen state as After the bright screen state, that is, the UE is in the bright screen state, it can be considered that the UE is not in a low network speed application scenario.
  • the AP of the UE can send a sixth signaling message to the NAS layer.
  • the sixth signaling message is used to inform the UE that it is not currently in a low-speed application scenario and needs to restore any disconnected access in the LTE-NR dual connection.
  • Network connection that is, the corresponding disconnected LTE or NR connection in Figure 5 needs to be restored.
  • the fifth signaling message can also be called the fourth notification message, which is used to notify the UE that the UE is not in a low-speed application scenario, or specifically used to notify the UE that it is not in a low-speed application scenario, for example, Notify the UE that the screen is on, etc.
  • the sixth signaling message can also be a private command message, such as an AT command message; or, it can also be a traditional command message, such as an at ⁇ syscfgex command message for opening the NR connection communication function (including rebuilding the NR connection) Wait.
  • the AP also sends an AT command message to the NAS layer through the AT command interface to reestablish the LTE or NR connection. In this case, the UE does not perceive the access network used for its own communication, and the display icon on the UE interface will not change.
  • the AP sends a traditional signaling message to the NAS layer to reestablish the LTE or NR connection.
  • the at ⁇ syscfgex command message can rebuild the NR connection, restart or restore the NR connection communication function, that is, restore the 5G communication function.
  • the display icon in the UE interface will change, and the user can learn the access network or wireless connection communication technology used by the UE for current communication by observing the display icon, such as LTE-NR.
  • the indication flag can be used to notify the release or re-establishment of the LTE/NR connection; or the UE can use different command messages (ie signaling messages) to notify Release or re-establish LTE/NR connection.
  • the private command message or the traditional command message carries the indication flag "030201", which is used to notify the release of the NR connection; on the contrary, when the private command message or the traditional command message carries the indication flag "08030201", its specific use At the notification to rebuild or restore the NR connection.
  • the private command message or the traditional command message is a CLOSE command message, it is used to notify the release of the NR connection; conversely, when the private command message or the traditional command message is an OPEN command message, it is used to notify the reestablishment of the NR connection, etc.
  • the NAS layer sends a seventh signaling message to the RRC layer, where the seventh signaling message is used to notify the RRC layer to support communication using LTE or NR connections, and to enable LTE or NR measurement.
  • the RRC layer receives the seventh signaling message.
  • the RRC layer allows LTE or NR connection communication and starts LTE or NR measurement according to the indication of the seventh signaling message.
  • the seventh signaling message can also be called the fifth notification message, which contains at least one indicator bit for notifying the RRC layer to perform corresponding functional operations, for example, notifying the RRC layer to resume LTE or NR connection communication , Restart LTE or NR measurement, etc.
  • the fifth notification message contains at least one indicator bit for notifying the RRC layer to perform corresponding functional operations, for example, notifying the RRC layer to resume LTE or NR connection communication , Restart LTE or NR measurement, etc.
  • the RRC layer interacts with the network side to notify the reconfiguration of the LTE or NR connection on the network side. For example, when the RRC layer detects an LTE or NR cell, it sends an LTE or NR measurement report to the network side. Correspondingly, the network side receives the LTE or NR measurement report.
  • the RRC layer can send a sixth notification message (or signaling message) to the network side to notify the network side to reconfigure the radio resources required for the LTE or NR connection on the network side to rebuild the LTE or NR connection.
  • the sixth notification message may specifically be a measurement report of LTE or NR.
  • the RRC layer After the RRC layer starts LTE or NR measurement, it can perform cell measurement of the UE and report the corresponding measurement report.
  • the RRC layer detects an LTE or NR cell, it may send the LTE or NR measurement report to the network side (specifically, a 4G or 5G base station on the network side).
  • the network side can learn that the UE and the network side support LTE or NR connections.
  • the network side can reconfigure the radio resources that the LTE or NR connection needs to occupy on the network side, for example, reconfigure the transmission function layers such as NR PDCP, NR RLC, NR MAC, and NR PHY that are required to communicate with the LTE or NR connection on the network side.
  • the network side sends an eighth signaling message to the RRC layer, where the eighth signaling message is used to instruct the RRC layer to reestablish the LTE or NR connection on the UE side.
  • the RRC layer receives the eighth signaling message.
  • the network side may also send an eighth signaling message to the RRC layer to notify the RRC layer to reestablish the LTE or NR connection on the UE side.
  • the eighth signaling message may specifically be a second RRC reconfiguration message, which is used to notify the RRC layer to reconfigure the radio resources required on the UE side for the LTE or NR connection.
  • the second RRC reconfiguration message carries the spCellConfig configuration field, which includes NR configuration parameters, and the NR configuration parameters are specifically the radio resources occupied by the NR connection on the UE side.
  • the NR configuration parameters include parameters such as the downlink receiving channel, frequency point, and cell identification ID.
  • the RRC layer re-establishes the LTE or NR connection on the UE side according to the instructions of the eighth signaling message.
  • the RRC layer After the RRC layer receives the eighth signaling message (specifically, the second RRC reconfiguration message) sent by the network side, it can rebuild the occupied information on the UE side when configuring the LTE or NR connection according to the instructions of the eighth signaling message.
  • Radio resources to reestablish the LTE or NR connection on the UE side Exemplarily, taking the re-establishment of the NR connection as an example, the RRC layer can respond to the instructions of the second RRC reconfiguration message.
  • the RRC layer When reconfiguring the NR connection, it needs to occupy the transmission function layers such as NR PDCP, NR RLC, NR MAC, and NR PHY on the UE side. Relevant radio resources are used to reestablish the NR connection on the UE side, so that subsequent UEs can use the NR connection to communicate with the network side (specifically, a 5G base station on the network side).
  • the RRC layer may send a corresponding RRC reconfiguration response message to the network side after completing the re-establishment of the LTE or NR connection on the UE side to notify the RRC layer that the UE side has rebuilt LTE or NR connection.
  • the RRC layer sends a ninth signaling message to the NAS layer, where the ninth signaling message is used to notify the RRC layer that the LTE or NR connection on the UE side has been re-established.
  • the RRC layer can send a ninth signaling message (also specifically called the fourth notification message) to the NAS layer to notify the RRC layer that LTE or NR on the UE side has been restored
  • a ninth signaling message also specifically called the fourth notification message
  • LTE-NR dual-connection communication can be adopted between the UE and the network side.
  • the embodiments of the present invention it is possible to interact with the network side through signaling messages in low-speed application scenarios, disconnect any access network (such as LTE or NR access network) in the LTE-NR dual connection, and close
  • the reporting function of the LTE or NR measurement report can reduce the additional power consumption of the LTE or NR connection communication, thereby saving device power consumption, and also improving the efficiency of network utilization.
  • FIG. 8 is a schematic flowchart of another network connection processing method provided by an embodiment of the present invention.
  • the method shown in Figure 8 includes the following implementation steps:
  • the AP of the UE detects that the UE is in a low-speed application scenario, it sends a tenth signaling message to the NAS layer of the UE.
  • the tenth signaling message is used to notify the UE that it is in a low network speed application scenario and can release any access network connection in the LTE-NR dual connection.
  • the NAS layer receives the tenth signaling message.
  • the NAS layer sends an eleventh signaling message to the RRC layer, where the eleventh signaling message is used to notify the RRC layer that the LTE or NR connection communication is not supported, and the LTE or NR measurement is closed.
  • the RRC layer receives the eleventh signaling message.
  • the RRC layer closes the LTE or NR connection communication, and closes the LTE or NR measurement according to the indication of the eleventh signaling message.
  • steps S8101-S8103 please refer to the above-mentioned related descriptions about steps S5103-S5103, which will not be repeated here.
  • the NAS layer sends a twelfth signaling message to the network side to notify the network side that it does not support LTE or NR connection communication.
  • the network side receives the twelfth signaling message.
  • the NAS layer after the NAS layer determines through the tenth signaling message that the LTE or NR connection needs to be released, it can send a twelfth signaling message to the network side (specifically, the base station on the network side) to notify the network side 4G/5G base stations do not support LTE or NR connection communication.
  • the network side after receiving the twelfth signaling message, the network side can release the radio resources occupied by the LTE or NR connection on the network side. For example, releasing the NR connection.
  • the 5G base station on the network side can release the radio resources occupied by the NR connection on the network side.
  • the 4G base station on the network side can release the radio resources occupied by the LTE connection on the network side.
  • LTE PDCP, LTE RLC, LTE MAC, and LTE PHY transmission functions can release the LTE connection on the network side and release the connection between the UE and the 4G base station.
  • the twelfth signaling message may specifically be a first tracking area update (tracking area update, TAU) message.
  • the first TAU message carries parameters customized by the system and is used to notify the network side that it cannot support any communication function of the LTE or NR connection.
  • the first TAU message carries an indication parameter, which is used to indicate whether the NR connection in the LTE-NR dual connection is currently supported.
  • the indicator parameter can be represented by a specified character, a specified value, or a specified string. For example, when the indicator parameter is "1", it means that the communication function of the NR connection is currently supported; on the contrary, when the indicator parameter is "0" , Which means that the communication function of NR connection is not currently supported.
  • the network side sends a thirteenth signaling message to the RRC layer, where the thirteenth signaling message is used to notify the RRC layer to release the LTE or NR connection on the UE side.
  • the RRC layer receives the thirteenth signaling message.
  • the RRC layer releases the LTE or NR connection on the UE side according to the instructions of the thirteenth signaling message.
  • the thirteenth signaling message may specifically be an RRC re-establishment message, which is used to notify the RRC layer to release the radio resources occupied on the UE side during the LTE or NR connection configuration, so as to release the LTE or NR connection on the UE side.
  • the RRC layer can also send a signaling message to the NAS layer to notify the RRC layer that the LTENR connection of the UE has been released.
  • steps S8105-S8106 reference may be made to the relevant descriptions of S5105-S5106 in FIG. 5, which will not be repeated here.
  • the UE can use the process steps of the method as shown in Figure 9 to recover LTE-NR dual connection communication between UE and network side.
  • the method shown in FIG. 9 may specifically include the following implementation steps:
  • S8107 When the AP of the UE detects that the UE is not in a low-speed application scenario, it sends a fourteenth signaling message to the NAS layer.
  • the fourteenth signaling message is used to notify the UE that it is not in a low network speed application scenario and needs to reestablish or restore any disconnected access network connection (ie, restore LTE or NR connection).
  • the NAS layer receives the fourteenth signaling message.
  • the NAS layer sends a fifteenth signaling message to the RRC layer, where the fifteenth signaling message is used to notify the RRC layer to support LTE or NR connection communication, and to enable LTE or NR measurement.
  • the RRC layer receives the fifteenth signaling message.
  • the RRC layer closes the LTE or NR connection communication, and closes the LTE or NR measurement according to the instructions of the fifteenth signaling message.
  • steps S8107-S8109 please refer to the descriptions of S5108-S5110 in the aforementioned FIG. 7, which will not be repeated here.
  • the NAS layer sends a sixteenth signaling message to the network side, where the sixteenth signaling message is used to notify the network side to support LTE or NR connection communication.
  • the network side receives the sixteenth signaling message.
  • the sixteenth signaling message may specifically be a second TAU message, and the second TAU message is used to inform the network that the communication function of the TLE or NR connection is currently supported, that is, the LTE can be used between the UE and the network. Or NR connection to communicate with each other.
  • the network side can learn that the network side supports LTE or NR connections.
  • the network side can reconfigure the radio resources that the LTE or NR connection needs to occupy on the network side, such as reconfiguring the NR PDCP, NR RLC, NR MAC, and NR PHY transmission functions required for the LTE or NR connection to communicate on the network side. Layer-related radio resources, etc., to rebuild the LTE or NR connection on the network side.
  • the network side sends a seventeenth signaling message to the RRC layer, where the seventeenth signaling message is used to notify the RRC layer to reestablish the LTE or NR connection on the UE side.
  • the RRC layer receives the seventeenth signaling message.
  • the RRC layer re-establishes the LTE or NR connection on the UE side according to the indication of the seventeenth signaling message.
  • the seventeenth signaling message may specifically be an RRC reconfiguration message, which is used to notify the RRC layer to reconfigure the radio resources required by the LTE or NR connection on the UE side to reconfigure the LTE or NR connection on the UE side.
  • RRC reconfiguration message is used to notify the RRC layer to reconfigure the radio resources required by the LTE or NR connection on the UE side to reconfigure the LTE or NR connection on the UE side.
  • FIG. 10 is a schematic structural diagram of a system chip according to an embodiment of the present invention.
  • the system chip 1000 shown in FIG. 10 includes an application processor 1002 (application processor, AP) and a baseband processor 1004 (baseband processor, BP). among them,
  • the full name of the application processor is the multimedia application processor (MAP), which refers to the ultra-large-scale integrated circuit that expands audio and video functions and dedicated interfaces on the basis of the low-power central processing unit CPU.
  • MAP multimedia application processor
  • Application processors are mainly divided into three categories, which can include comprehensive processors, multimedia processors, and single media processors.
  • a comprehensive processor must not only have the functions of a multimedia application processor, but also be able to run complex operating systems such as linux.
  • the multimedia processor refers to a processor with more than two processing media, such as image, sound, video and 3D Graphics and other media.
  • a single multimedia processor refers to a processor that processes one medium, usually only for processing images or sounds.
  • the baseband processor is an important component in the system chip, equivalent to a protocol processor, responsible for data processing and storage, mainly composed of digital signal processor (digital signal processor, DSP), microcontroller (microcontroller unit, MCU) It is composed of memory (such as flash, flash memory) and other units, and its corresponding main function is responsible for baseband encoding or decoding, sound encoding, and voice encoding.
  • DSP digital signal processor
  • MCU microcontroller unit
  • memory such as flash, flash memory
  • baseband processors not only support multiple communication standards (such as GSM, LTE, CDMA, etc.), but also provide multimedia functions and provide communication interfaces for multimedia displays, image sensors, and audio equipment.
  • the software supported by the application processor AP includes an operating system, a user interface, and an application program.
  • the baseband processor BP can be regarded as a wireless modem modem module, which is responsible for coordinating and controlling the communication between the BP and the base station and AP.
  • the software that it supports includes the communication control software of the baseband modem baseband modem.
  • the application processor AP and the baseband processor BP support the use of a preset interface technology to realize mutual communication.
  • the interface technology can be customized by the system. For example, it includes but is not limited to serial peripheral interface (SPI). ), universal asynchronous receiver/transmitter (UART), universal serial bus (USB), general purpose input/output (GPIO) and other interface technologies.
  • SPI serial peripheral interface
  • UART universal asynchronous receiver/transmitter
  • USB universal serial bus
  • GPIO general purpose input/output
  • the application processor and the baseband processor can communicate with each other in a message format through control commands to complete functions such as calls, short messages, and mobile Internet access.
  • the control command may include traditional AT (attention) commands, mobile broadband interface model (MBIM) commands, or other protocol commands that support mutual transmission between AP and BP.
  • MBIM mobile broadband interface model
  • the baseband processor BP supports the operation of protocol software related to the non-access NAS layer and the radio resource control RRC layer.
  • the application processor AP supports communication with the NAS layer and the RRC layer in the baseband processor BP.
  • the application processor AP in this application may use traditional AT commands to send corresponding signaling messages to the NAS layer to notify the NAS layer of information such as application status or device screen status that the AP currently knows.
  • the NAS layer in the baseband processor BP supports the execution of the method steps described with the NAS layer as the execution subject in any of the method embodiments described in FIG. 5 to FIG. 9, and/or other technical content described in this article .
  • the RRC layer in the baseband processor BP supports the execution of the method steps described with the RRC layer as the execution subject in any of the method embodiments described in FIGS. 5-9 above, and/or other technical content described in this document.
  • the system chip 1000 usually refers to a highly complex system chip, such as an SOC chip. In actual deployment, it can be deployed inside the device or outside the device, and the device can be controlled through a wired connection or a wireless connection.
  • the device includes, but is not limited to, user equipment UE or terminal device. For example, it may specifically include a smart phone, mobile internet devices (MID), wearable smart devices, or other devices that support network communication.
  • the system chip 1000 when the system chip 1000 is deployed inside the user equipment, the system chip 1000 is directly used to implement the method described in any of the method embodiments described in FIGS. 5 to 9 above.
  • the system chip 1000 When the system chip 1000 is deployed outside the user equipment and supports the establishment of communication between the system chip 1000 and the user equipment through a wired or wireless connection, the user equipment can call or control the system chip 1000 to achieve any of the above Figure 5-9 The method described in the method embodiment.
  • FIG. 11 is a wireless transceiver unit 1100 provided by an embodiment of the present invention, including: a non-access stratum NAS entity 1102 and a radio resource control layer RRC entity 1104.
  • the NAS entity 1102 is used to execute the relevant steps with the NAS layer as the execution subject in any of the method embodiments described in FIGS. 5 to 9 above, or the technical content described in the text.
  • the RRC entity 1104 is used to execute the relevant steps with the RRC layer as the execution subject in any of the method embodiments described in FIGS. 5 to 9 above, or the technical content described in the text.
  • the NAS entity 1102 is used to execute the relevant steps with the NAS layer as the execution subject in any of the method embodiments described in FIGS. 5 to 9 above, or the technical content described in the text.
  • the NAS entity 1102 is configured to receive the first notification message sent by the application side of the user equipment UE, and then send an NR disconnect message to the RRC entity, where the first notification message is used to notify the UE that the screen is off, And the size of the data packet that the UE needs to receive or send is less than or equal to the first threshold, and the NR disconnect message is used to instruct the RRC entity to release the NR connection configuration on the UE side. Resources to disconnect the NR connection on the UE side;
  • the RRC entity 1104 is configured to release the radio resources on the UE side during the NR connection configuration according to the indication of the NR disconnection message, so as to disconnect the NR connection on the UE side.
  • the RRC entity 1104 is further configured to send a secondary cell group SCG link failure message to the network side, and the SCG link failure message is used to instruct the release of the NR connection on the network side.
  • the radio resources of the SCG link are occupied to disconnect the NR connection on the network side; wherein, the UE and the network side respectively establish mutual communication of the NR connection through the SCG link.
  • the RRC entity 1104 is further configured to send a second notification message to the NAS entity, and the second notification message is used to notify the UE that the NR connection has been disconnected.
  • the RRC entity 1104 is further configured to send a first tracking area update TAU message to the network side, and the first TAU message is used to notify the network side that communication of the NR connection is not supported.
  • the NAS entity 1102 is further configured to send an NR reestablishment message to the RRC entity after receiving a third notification message sent by the application side of the UE, and the third notification message is used to notify The UE is in a bright screen state, and the NR reestablishment message is used to instruct the RRC entity to reconfigure the radio resources required by the NR connection on the UE side to reestablish the NR connection on the UE side;
  • the RRC entity 1104 is further configured to reconfigure the radio resources that need to be occupied on the UE side during the NR connection according to the instructions of the NR reestablishment message, so as to reestablish the NR connection on the UE side.
  • the RRC entity 1104 is further configured to send a fourth notification message to the NAS entity, where the fourth notification message is used to notify the UE that the NR connection has been reestablished.
  • the RRC entity 1104 is further configured to send a secondary cell group SCG link success message to the network side, and the secondary cell group SCG link success message is used to indicate that the NR connection is reconfigured at all The radio resources of the SCG link occupied by the network side are used to reestablish the NR connection on the network side.
  • the NAS entity 1102 is further configured to send a second tracking area update TAU message to the network side, and the second TAU message is used to notify the network side to support the communication of the NR connection.
  • the user equipment 100 may also be referred to as a network-connected processing device.
  • the user equipment 100 may include a processor 110, an external memory interface 120, an internal memory 121, and a universal serial bus (USB) interface 130, charging management module 140, power management module 141, battery 142, antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone interface 170D, sensor module 180, button 190, motor 191, indicator 192, camera 193, display screen 194, subscriber identification module (SIM) card interface 195, and so on.
  • SIM subscriber identification module
  • the sensor module 180 may include pressure sensor 180A, gyroscope sensor 180B, air pressure sensor 180C, magnetic sensor 180D, acceleration sensor 180E, distance sensor 180F, proximity light sensor 180G, fingerprint sensor 180H, temperature sensor 180J, touch sensor 180K, ambient light Sensor 180L, bone conduction sensor 180M, etc.
  • the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the user equipment 100.
  • the user equipment 100 may include more or fewer components than shown, or combine certain components, or split certain components, or arrange different components.
  • the illustrated components can be implemented in hardware, software, or a combination of software and hardware.
  • the processor 110 may include one or more processing units.
  • the processor 110 may include an application processor (AP), and the baseband processor may also be called a modem processor, or a graphics processing unit (graphics processing unit, GPU), image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural network processor) -network processing unit, NPU), etc.
  • the different processing units may be independent devices or integrated in one or more processors.
  • the controller may be the nerve center and command center of the user equipment 100.
  • the controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching and executing instructions.
  • a memory may also be provided in the processor 110 to store instructions and data.
  • the memory in the processor 110 is a cache memory.
  • the memory can store instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 110 is reduced, and the efficiency of the system is improved.
  • the processor 110 may include one or more interfaces.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, and a universal asynchronous transmitter (universal asynchronous transmitter) interface.
  • I2C integrated circuit
  • I2S integrated circuit built-in audio
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous transmitter
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • USB Universal Serial Bus
  • the I2C interface is a two-way synchronous serial bus, including a serial data line (SDA) and a serial clock line (SCL).
  • the processor 110 may include multiple sets of I2C buses.
  • the processor 110 may be coupled to the touch sensor 180K, charger, flash, camera 193, etc., through different I2C bus interfaces.
  • the processor 110 may couple the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through an I2C bus interface to implement the touch function of the user equipment 100.
  • the I2S interface can be used for audio communication.
  • the processor 110 may include multiple sets of I2S buses.
  • the processor 110 may be coupled with the audio module 170 through an I2S bus to realize communication between the processor 110 and the audio module 170.
  • the audio module 170 may transmit audio signals to the wireless communication module 160 through an I2S interface, so as to realize the function of answering calls through a Bluetooth headset.
  • the PCM interface can also be used for audio communication to sample, quantize and encode analog signals.
  • the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface.
  • the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.
  • the UART interface is a universal serial data bus used for asynchronous communication.
  • the bus can be a two-way communication bus. It converts the data to be transmitted between serial communication and parallel communication.
  • the UART interface is generally used to connect the processor 110 and the wireless communication module 160.
  • the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to implement the Bluetooth function.
  • the audio module 170 may transmit audio signals to the wireless communication module 160 through a UART interface, so as to realize the function of playing music through a Bluetooth headset.
  • the MIPI interface can be used to connect the processor 110 with the display screen 194, the camera 193 and other peripheral devices.
  • the MIPI interface includes camera serial interface (camera serial interface, CSI), display serial interface (display serial interface, DSI), etc.
  • the processor 110 and the camera 193 communicate through a CSI interface to implement the shooting function of the user equipment 100.
  • the processor 110 and the display screen 194 communicate through a DSI interface to implement the display function of the user equipment 100.
  • the GPIO interface can be configured through software.
  • the GPIO interface can be configured as a control signal or as a data signal.
  • the GPIO interface can be used to connect the processor 110 with the camera 193, the display screen 194, the wireless communication module 160, the audio module 170, the sensor module 180, and so on.
  • GPIO interface can also be configured as I2C interface, I2S interface, UART interface, MIPI interface, etc.
  • the USB interface 130 is an interface that complies with the USB standard specification, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on.
  • the USB interface 130 may be used to connect a charger to charge the user equipment 100, and may also be used to transfer data between the user equipment 100 and peripheral devices. It can also be used to connect headphones and play audio through the headphones. This interface can also be used to connect other electronic devices, such as AR devices.
  • the interface connection relationship between the modules illustrated in the embodiment of the present invention is merely illustrative, and does not constitute a structural limitation of the user equipment 100.
  • the user equipment 100 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.
  • the charging management module 140 is used to receive charging input from the charger.
  • the charger can be a wireless charger or a wired charger.
  • the charging management module 140 may receive the charging input of the wired charger through the USB interface 130.
  • the charging management module 140 may receive the wireless charging input through the wireless charging coil of the user equipment 100. While the charging management module 140 charges the battery 142, it can also supply power to the electronic device through the power management module 141.
  • the power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110.
  • the power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen 194, the camera 193, and the wireless communication module 160.
  • the power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance).
  • the power management module 141 may also be provided in the processor 110.
  • the power management module 141 and the charging management module 140 may also be provided in the same device.
  • the wireless communication function of the user equipment 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor.
  • the antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in the user equipment 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • antenna 1 can be multiplexed as a diversity antenna of a wireless local area network.
  • the antenna can be used in combination with a tuning switch.
  • the mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G and the like applied on the user equipment 100.
  • the mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc.
  • the mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation.
  • the mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic waves for radiation via the antenna 1.
  • at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110.
  • at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.
  • the modem processor may include a modulator and a demodulator.
  • the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal.
  • the demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. Then the demodulator transmits 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 passed to the application processor.
  • the application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays an image or video through the display screen 194.
  • the modem processor may be an independent device.
  • the modem processor may be independent of the processor 110 and be provided in the same device as the mobile communication module 150 or other functional modules.
  • the wireless communication module 160 can provide applications on the user equipment 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (bluetooth, BT), and global navigation satellites.
  • WLAN wireless local area networks
  • WiFi wireless fidelity
  • BT Bluetooth
  • global navigation satellites System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions.
  • the wireless communication module 160 may be one or more devices integrating at least one communication processing module.
  • the wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110.
  • the wireless communication module 160 can also receive the signal to be sent from the processor 110, perform frequency modulation, amplify it, and convert it into electromagnetic wave radiation via the antenna 2.
  • the antenna 1 of the user equipment 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the user equipment 100 can communicate with the network and other devices through wireless communication technology.
  • the wireless communication technology may include LTE-NR dual-connection technology, LTE single-connection technology, NR single-connection technology, etc., for example, it may specifically include global system for mobile communications (GSM), general packet radio service ( general packet radio service, GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (time-division code division multiple access) access, TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc.
  • GSM global system for mobile communications
  • general packet radio service general packet radio service
  • WCDMA wideband code division multiple access
  • time-division code division multiple access time-division code division multiple access
  • TD-SCDMA long term evolution
  • the GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).
  • GPS global positioning system
  • GLONASS global navigation satellite system
  • BDS Beidou navigation satellite system
  • QZSS quasi-zenith satellite system
  • SBAS satellite-based augmentation systems
  • the user equipment 100 implements a display function through a GPU, a display screen 194, and an application processor.
  • the GPU is a microprocessor for image processing, connected to the display 194 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations for graphics rendering.
  • the processor 110 may include one or more GPUs, which execute program instructions to generate or change display information.
  • the display screen 194 is used to display images, videos, etc.
  • the display screen 194 includes a display panel.
  • the display panel can adopt liquid crystal display (LCD), organic light-emitting diode (OLED), active-matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode).
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • active-matrix organic light-emitting diode active-matrix organic light-emitting diode
  • AMOLED flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc.
  • the user equipment 100 may include one or N display screens 194, and N is a positive integer greater than one.
  • the user equipment 100 may implement a shooting function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, and an application processor.
  • the ISP is used to process the data fed back from the camera 193. For example, when taking a picture, the shutter is opened, the light is transmitted to the photosensitive element of the camera through the lens, the light signal is converted into an electrical signal, and the photosensitive element of the camera transfers the electrical signal to the ISP for processing and is converted into an image visible to the naked eye.
  • ISP can also optimize the image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene.
  • the ISP may be provided in the camera 193.
  • the camera 193 is used to capture still images or videos.
  • the object generates an optical image through the lens and projects it to the photosensitive element.
  • the photosensitive element can be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor.
  • CMOS complementary metal-oxide-semiconductor
  • the photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP to convert it into a digital image signal.
  • ISP outputs digital image signals to DSP for processing.
  • DSP converts digital image signals into standard RGB, YUV and other formats.
  • the user equipment 100 may include 1 or N cameras 193, and N is a positive integer greater than 1.
  • Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the user equipment 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.
  • Video codecs are used to compress or decompress digital video.
  • the user equipment 100 may support one or more video codecs.
  • the user equipment 100 can play or record videos in a variety of encoding formats, for example: moving picture experts group (MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.
  • MPEG moving picture experts group
  • NPU is a neural-network (NN) computing processor.
  • NN neural-network
  • applications such as intelligent cognition of the user equipment 100 can be implemented, such as image recognition, face recognition, voice recognition, text understanding, etc.
  • the external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the user equipment 100.
  • the external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example, save music, video and other files in an external memory card.
  • the internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions.
  • the processor 110 executes various functional applications and data processing of the user equipment 100 by running instructions stored in the internal memory 121.
  • the internal memory 121 may include a storage program area and a storage data area.
  • the storage program area can store an operating system, at least one application program (such as a sound playback function, an image playback function, etc.) required by at least one function.
  • the data storage area can store data (such as audio data, phone book, etc.) created during the use of the user equipment 100.
  • the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), etc.
  • UFS universal flash storage
  • the user equipment 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. For example, music playback, recording, etc.
  • the audio module 170 is used to convert digital audio information into an analog audio signal for output, and is also used to convert an analog audio input into a digital audio signal.
  • the audio module 170 can also be used to encode and decode audio signals.
  • the audio module 170 may be provided in the processor 110, or part of the functional modules of the audio module 170 may be provided in the processor 110.
  • the speaker 170A also called a “speaker” is used to convert audio electrical signals into sound signals.
  • the user equipment 100 can listen to music through the speaker 170A, or listen to a hands-free call.
  • the receiver 170B also called “earpiece” is used to convert audio electrical signals into sound signals.
  • the user equipment 100 answers a call or voice message, it can receive the voice by bringing the receiver 170B close to the human ear.
  • the microphone 170C also called “microphone”, “microphone”, is used to convert sound signals into electrical signals.
  • the user can approach the microphone 170C through the mouth to make a sound, and input the sound signal to the microphone 170C.
  • the user equipment 100 may be provided with at least one microphone 170C. In other embodiments, the user equipment 100 may be provided with two microphones 170C, which can implement noise reduction functions in addition to collecting sound signals. In other embodiments, the user equipment 100 may also be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions.
  • the earphone interface 170D is used to connect wired earphones.
  • the earphone interface 170D may be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, and a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.
  • OMTP open mobile terminal platform
  • CTIA cellular telecommunications industry association of the USA, CTIA
  • the pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal.
  • the pressure sensor 180A may be provided on the display screen 194.
  • the capacitive pressure sensor may include at least two parallel plates with conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes.
  • the user equipment 100 determines the intensity of the pressure according to the change in capacitance.
  • the user equipment 100 detects the intensity of the touch operation according to the pressure sensor 180A.
  • the user equipment 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A.
  • touch operations that act on the same touch location but have different touch operation strengths may correspond to different operation instructions. For example: when a touch operation whose intensity of the touch operation is less than the first pressure threshold is applied to the short message application icon, an instruction to view the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, an instruction to create a new short message is executed.
  • the gyro sensor 180B may be used to determine the movement posture of the user equipment 100.
  • the angular velocity of the user equipment 100 around three axes ie, x, y, and z axes
  • the gyro sensor 180B can be used for image stabilization.
  • the gyroscope sensor 180B detects the jitter angle of the user equipment 100, calculates the distance that the lens module needs to compensate according to the angle, and allows the lens to counteract the jitter of the user equipment 100 through a reverse movement to achieve anti-shake.
  • the gyro sensor 180B can also be used for navigation and somatosensory game scenes.
  • the air pressure sensor 180C is used to measure air pressure.
  • the user equipment 100 calculates the altitude based on the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.
  • the magnetic sensor 180D includes a Hall sensor.
  • the user equipment 100 may use the magnetic sensor 180D to detect the opening and closing of the flip holster.
  • the user equipment 100 may detect the opening and closing of the flip according to the magnetic sensor 180D.
  • features such as automatic unlocking of the flip cover are set.
  • the acceleration sensor 180E can detect the magnitude of the acceleration of the user equipment 100 in various directions (generally three axes). When the user equipment 100 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices, and used in applications such as horizontal and vertical screen switching, pedometers, etc.
  • the user equipment 100 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the user equipment 100 may use the distance sensor 180F to measure the distance to achieve fast focusing.
  • the proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector such as a photodiode.
  • the light emitting diode may be an infrared light emitting diode.
  • the user equipment 100 emits infrared light to the outside through the light emitting diode.
  • the user equipment 100 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the user equipment 100. When insufficient reflected light is detected, the user equipment 100 may determine that there is no object near the user equipment 100.
  • the user equipment 100 may use the proximity light sensor 180G to detect that the user holds the user equipment 100 close to the ear to talk, so as to automatically turn off the screen to save power.
  • the proximity light sensor 180G can also be used in leather case mode, and the pocket mode will automatically unlock and lock the screen.
  • the ambient light sensor 180L is used to sense the brightness of the ambient light.
  • the user equipment 100 can adaptively adjust the brightness of the display screen 194 according to the perceived brightness of the ambient light.
  • the ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures.
  • the ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the user equipment 100 is in a pocket to prevent accidental touch.
  • the fingerprint sensor 180H is used to collect fingerprints.
  • the user equipment 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.
  • the temperature sensor 180J is used to detect temperature.
  • the user equipment 100 uses the temperature detected by the temperature sensor 180J to execute the temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold value, the user equipment 100 performs a reduction in the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection.
  • the temperature when the temperature is lower than another threshold, the user equipment 100 heats the battery 142 to avoid abnormal shutdown of the user equipment 100 due to low temperature.
  • the user equipment 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.
  • Touch sensor 180K also called “touch panel”.
  • the touch sensor 180K may be disposed on the display screen 194, and the touch screen is composed of the touch sensor 180K and the display screen 194, which is also called a “touch screen”.
  • the touch sensor 180K is used to detect touch operations acting on or near it.
  • the touch sensor can pass the detected touch operation to the application processor to determine the type of touch event.
  • the visual output related to the touch operation can be provided through the display screen 194.
  • the touch sensor 180K may also be disposed on the surface of the user equipment 100, which is different from the position of the display screen 194.
  • the bone conduction sensor 180M can acquire vibration signals.
  • the bone conduction sensor 180M can obtain the vibration signal of the vibrating bone mass of the human voice.
  • the bone conduction sensor 180M can also contact the human pulse and receive the blood pressure pulse signal.
  • the bone conduction sensor 180M may also be provided in the earphone, combined with the bone conduction earphone.
  • the audio module 170 can parse the voice signal based on the vibration signal of the vibrating bone block of the voice obtained by the bone conduction sensor 180M, and realize the voice function.
  • the application processor may analyze the heart rate information based on the blood pressure beat signal obtained by the bone conduction sensor 180M, and realize the heart rate detection function.
  • the button 190 includes a power button, a volume button, and so on.
  • the button 190 may be a mechanical button. It can also be a touch button.
  • the user equipment 100 may receive key input, and generate key signal input related to user settings and function control of the user equipment 100.
  • the motor 191 can generate vibration prompts.
  • the motor 191 can be used for incoming call vibration notification, and can also be used for touch vibration feedback.
  • touch operations applied to different applications can correspond to different vibration feedback effects.
  • Acting on touch operations in different areas of the display screen 194, the motor 191 can also correspond to different vibration feedback effects.
  • Different application scenarios for example: time reminder, receiving information, alarm clock, game, etc.
  • the touch vibration feedback effect can also support customization.
  • the indicator 192 may be an indicator light, which may be used to indicate the charging status, power change, or to indicate messages, missed calls, notifications, and so on.
  • the SIM card interface 195 is used to connect to the SIM card.
  • the SIM card can be connected to and separated from the user equipment 100 by inserting into the SIM card interface 195 or pulling out from the SIM card interface 195.
  • the user equipment 100 may support 1 or N SIM card interfaces, and N is a positive integer greater than 1.
  • the SIM card interface 195 can support Nano SIM cards, Micro SIM cards, SIM cards, etc.
  • the same SIM card interface 195 can insert multiple cards at the same time. The types of the multiple cards can be the same or different.
  • the SIM card interface 195 can also be compatible with different types of SIM cards.
  • the SIM card interface 195 may also be compatible with external memory cards.
  • the user equipment 100 interacts with the network through the SIM card to implement functions such as call and data communication.
  • the user equipment 100 uses an eSIM, that is, an embedded SIM card.
  • the eSIM card can be embedded in the user equipment 100 and cannot be separated from the user equipment 100.
  • An embodiment of the present invention also provides a chip system, the chip system includes at least one processor, a memory, and an interface circuit.
  • the memory, the transceiver, and the at least one processor are interconnected by wires, and the at least one memory Instructions are stored in the processor; when the instructions are executed by the processor, the process of any one of the method embodiments described in FIGS. 5 to 9 can be implemented.
  • the embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores instructions, and when it runs on a processor, the process of any one of the method embodiments shown in FIGS. 5 to 9 can be Achieved.
  • the embodiment of the present invention also provides a computer program product.
  • the computer program product runs on a processor, the process of any one of the method embodiments described in FIGS. 5 to 9 can be implemented.
  • the steps of the method or algorithm described in combination with the disclosure of the embodiments of the present invention may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (English: Random Access Memory, RAM), flash memory, read-only memory (English: Read Only Memory, ROM), erasable and programmable Read-only memory (English: Erasable Programmable ROM, EPROM), electrically erasable programmable read-only memory (English: Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or well-known in the art Any other form of storage medium.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in the computing device.
  • the processor and the storage medium may also exist as discrete components in the computing device.
  • the program can be stored in a computer readable storage medium. When executed, it may include the processes of the above-mentioned method embodiments.
  • the aforementioned storage media include: ROM, RAM, magnetic disks or optical disks and other media that can store program codes.

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Abstract

本发明实施例公开了一种网络连接的处理方法、装置以及无线收发单元，所述方法应用于用户设备UE侧，涉及5GNR、人工智能通信领域，包括：UE通过LTE-NR双连接技术分别连接至4G基站和5G基站；在UE处于灭屏状态下，且UE的数据传输速率小于或等于预设速率，则释放UE和5G基站的连接。采用本发明实施例，能够解决LTE-NR双连接技术带来的设备功耗较高、网络资源浪费等问题。

Description

网络连接的处理方法、相关设备及计算机存储介质
本申请要求在2019年3月9日提交中国国家知识产权局、申请号为201910177518.5、发明名称为“一种终端的省电方法”的中国专利申请的优先权，在2019年6月28日提交中国国家知识产权局、申请号为201910588602.6、发明名称为“网络连接的处理方法、相关设备及计算机存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及网络连接的处理方法、相关设备及计算机存储介质。
背景技术
LTE在R12标准中引入双连接的概念，即用户设备(user equipment，UE)在无线资源控制(radio resource control，RRC)连接状态下可同时利用两个基站独立的物理资源进行传输。LTE双连接技术拓展了载波聚合的应用，能有效提升网络容量，提高网络切换功率等能力。
其中，LTE-NR双连接作为LTE双连接中的一种重要应用技术，其也称为4G-5G无线接入双连接(EUTRN-NR dual connectivity，EN-DC)，主要涉及4G的E-UTRAN接入网(也称为LTE接入网)和5G的新随机接入制式(new random access technology，NR)接入网(简称为NR接入网)，从而使得5G网络在部署时可借助已有4G的LTE覆盖，避免网络资源的浪费。
在LTE双连接技术中，UE可同时与一个4G基站(可称为eNB)和一个5G基站(可称为En-gNB)连接，在4G和5G的紧密互操作下获得高速率、低延迟的无线传输服务。相比于单接入网工作模式而言，例如仅利用4G的LTE技术通信，LTE双连接技术将导致用户设备功耗较大。且对于一些低用网需求的场景而言，LTE接入网即可保证用户设备的连网需求，如果仍采用LTE-NR双连接技术无疑会造成网络资源的浪费、用户设备功耗的增加。
发明内容
本发明实施例公开了网络连接的处理方法、相关设备及计算机存储介质，能够解决传统技术中低网速场景下采用LTE-NR双连接技术通信存在的设备功耗较大、网络资源浪费等问题。
第一方面，本发明实施例公开提供了一种网络连接的处理方法，应用于用户设备UE侧，所述方法包括：UE通过LTE-NR双连接技术分别与4G基站和5G基站连接，当UE处于低网速应用场景时，则释放UE和4G基站或5G基站的连接。其中，UE和4G基站的连接也称为LTE连接，UE和5G基站的连接也称为NR连接。从而能解决传统技术中低网速应用场景下仍采用LTE-NR双连接通信带来的设备功耗较大、网络资源浪费等问题。
其中，低网速应用场景是指UE用网需求较低的应用场景，具体可体现在UE的数据传输速率较低或UE所需传输的数据包的大小较小等方面。UE在检测到以下中的任一项或多项的组合时，可确定UE处于低网速应用场景：
1)UE处于亮屏状态，且低网速运行。低网速是指UE的数据传输速率较低，例如具体可指UE针对上行数据的传输速率小于第一预设速率，例如50kbit/s；也可指UE针对下行数 据的传输速率小于第二预设速率，例如60kbit/s；还可指UE针对包括上行数据和下行数据在内的所有数据的传输速率小于第三预设阈值，例如100kbit/s等。在实际应用中，UE低网速运行的场景有多种，示例性给出如下三种。例如第一种，在UE中开启低网速应用运行的功能，关闭高网速应用运行的功能。低网速应用是指UE中部署的对数据传输速率要求较低的应用，例如要求数据传输速率小于预设速率等，反之高网速应用是指UE中部署的对数据传输速率要求较高的应用，例如视频应用等。第二种，UE和其他设备交互心跳包，以维持正常的通信连接等。第三种，UE处于低网速运行的场景，例如游戏场景或导航场景等，该游戏场景对CPU占用要求较高，导航场景对设备散热性能要求较高，但对网速(即数据传输速率)要求相对较低。
2)UE处于亮屏状态，且UE所需传输的数据包的大小小于或等于第一预设阈值。
3)关闭UE的移动数据通信功能。
4)UE的整机温度大于或等于预设温度阈值。在实际应用中，UE的整机温度通常可用UE中一些核心器件的温度替代，例如CPU温度、SOC温度以及电池温度等。
5)UE处于灭屏状态，且低网速运行。本实施例中，灭屏状态下UE处于低网速运行的场景也有多种，例如灭屏状态下仍然支持后台应用的运行，此时为满足低用网需求，可开启低网速应用运行的功能、关闭高网速应用运行的功能。又如，灭屏状态下UE没有数据收发，或仅传输保持应用程序处于唤醒状态的数据包，例如心跳测试包或监听数据包等，这一类数据包是周期性发的，且数据包的传输速率以及数据包大小通常较小。此情况下，可认为UE低网速运行。
6)UE处于灭屏状态，且UE所需传输的数据包的大小小于或等于第二预设阈值。
可选地，不论UE处于哪种屏幕状态，在通过UE的数据传输速率识别低网速应用场景时，为保证低网速应用场景识别的准确性，UE还可对数据传输速率进行进一步限定。例如，UE将统计UE的数据传输速率小于或等于预设速率所对应的持续时长，若该持续时长超过一定阈值，则可确定UE处于低网速应用场景；否则，确定UE不处于低网速应用场景。
可选地，在LTE能满足UE的低用网需求(即LTE能满足低网速应用场景)的情况下，UE可优先断开UE和5G基站的连接，即优先LTE-NR双连接中的NR连接。例如，UE在LTE-NR双连接状态下，当UE处于灭屏状态下，且UE的数据传输速率小于预设速率时，则释放UE和5G基站的连接。
结合第一方面，在一些可能的实施例中，UE包括非接入NAS层和无线资源控制RRC层。UE的应用处理器AP在确定到UE处于低网速应用场景时，可向NAS层发送第一通知消息，该第一通知消息用于通知UE处于低网速应用场景，或具体用于通知该低网速应用场景的识别条件。NAS层接收第一通知消息后，可向RRC层发送第二通知消息，用于通知RRC层关闭UE和4G基站或5G基站的连接的测量，即关闭LTE或NR测量。可选地，还用于通知RRC层不支持UE与4G基站或5G基站的连接。相应地，RRC层接收第二通知消息后，可关闭UE和4G基站或5G基站的连接通信功能，关闭UE和4G基站或5G基站的连接的测量，从而关闭LTE或NR测量。便于RRC层后续无法向网络侧(具体可为网络侧的4G基站或5G基站)发送相应地测量报告。
可选地，应用处理器AP在确定到UE处于低网速应用场景时，可通过私有命令消息或现有命令消息向NAS层发送第一通知消息。其中，AP采用私有命令消息发第一通知消息时，此情况下，UE侧并不感知UE通信所采用的无线接入网，当释放UE和4G或5G基站的连 接后，用户无法通过UE界面中的显示图标来获知UE通信连接的基站或接入网，此时UE界面的显示图标不发生变化，例如LTE-NR双连接时显示图标为4G-5G，释放LTE或NR连接后显示图标仍然为4G-5G。
当AP采用现有命令消息发第一通知消息时，UE界面中的显示图标将发生变化，用户通过该显示图标可获知UE通信所连接的基站或接入网。例如LTE-NR双连接时显示图标为4G-5G，释放LTE连接后显示图标为5G，释放NR连接后显示图标为4G等。
可选地，第一通知消息和第二通知消息中携带有相应地指示标识位，用于指示进行相应地功能操作或功能通知。例如第一通知消息中携带“030201”，表示UE不支持5G通信，可释放UE和5G基站的连接，即释放NR连接；当第一通知消息中携带“08030201”，表示UE支持5G通信，可重建UE和5G基站的连接，即重建NR连接。
结合第一方面，在一些可能的实施例中，RRC层可向网络侧发送信令消息，以对应释放UE和4G或5G基站连接配置时在基站侧所占用的无线资源，以在基站侧对应释放UE和4G或5G基站的连接。具体地，当释放UE和4G基站的连接时，RRC层可向4G基站发送信令消息，以用于指示4G基站释放UE和4G基站连接配置时在4G基站侧所占用的无线基站，以在4G基站侧释放UE和4G基站的连接。
当释放UE和5G基站的连接时，RRC层可向5G基站发送SCG链路失败消息，用于释放UE和5G基站连接配置时在5G基站侧所占用的无线资源，以在5G基站侧释放UE和5G基站的连接。该SCG链路失败消息在不同协议版本中的规定可不同，例如在R12协议版本中，其可为SCGFailureInformation-r12-IEs信令消息，其包括失败类型failureType-r12等参数。该失败类型包括以下中的任一项或多项参数的组合：定时器时延(即UE和网络侧支持数据传输的时延)、随机接入问题randomAccessProblem、RLC重传最大次数rlc-MaxNumRetx(允许RLC重传数据包的最大次数)、SCG链路变化失败scg-ChangeFailure(即不支持SCG链路的切换)等。
结合第一方面，在一些可能的实施例中，UE还包括非接入NAS层，NAS层可向对应基站发送信令消息，以通知基站释放UE和4G或5G基站连接配置时在该基站侧所占用的无线资源，以在基站侧释放UE和4G或5G基站的连接。例如，以释放UE和5G基站的连接为例，NAS层可向5G基站发送第一TAU消息，用于通知5G基站无法支持5G连接。相应地，5G基站接收第一TAU消息后，确定不支持5G连接通信，进一步可释放UE和5G连接配置时在5G基站侧所占用的无线资源，以在5G基站侧释放UE和5G基站的连接。
可选地，第一TAU消息中携带指示参数，用于通知不支持UE与4G或5G基站连接的通信功能。该指示信息可用指定字符、数值、字符串或数组等形式体现。
结合第一方面，在一些可能的实施例中，基站侧在释放UE和该基站(例如4G或5G基站)的连接后，可向RRC层发送第一RRC重配消息，该第一RRC重配消息用于指示RRC层释放UE和4G或5G基站连接配置时在UE侧所占用的无线资源，以在UE侧释放UE和4G或5G基站的连接。相应地，RRC层可响应该第一RRC重配消息，释放UE和4G或5G基站连接配置时在UE侧所占的无线资源，以在UE侧释放UE和4G或5G基站的连接。
可选地，第一RRC重配消息中携带有释放releast字段，具体用于指示RRC层释放UE和4G或5G基站连接配置时在UE侧相关的配置参数，例如小区ID、下行接收信道、频点等。
结合第一方面，在一些可能的实施例中，在RRC层在UE侧释放UE和4G或5G的连接后，RRC层可向NAS层发送第三通知消息，用于通知当前已在UE侧释放了UE和4G或5G基站的连接。
结合第一方面，在一些可能的实施例中，当UE不处于低网速应用场景时，可重建UE和4G或5G基站的连接，即恢复UE同时与4G基站和5G基站的连接，有利于提升UE的网络速率。
可选地，UE不处于低网速应用场景的具体实施方式不做限定，如UE不满足上述UE处于低网速应用场景的6个检测条件，示例性地UE处于亮屏状态等等。
结合第一方面，在一些可能的实施例中，UE包括NAS层和RRC层。UE的应用处理器AP确定到UE不处于低网速应用场景后，可向NAS层发送第四通知消息，用于通知UE不处于低网速应用场景，需重建UE和4G或5G基站的连接。相应地，NAS层接收第四通知消息后，向RRC层发送第五通知消息，用于通知RRC层支持UE和4G或5G基站的连接，恢复或开启针对UE和4G或5G基站的连接的测量，即开启LTE或NR测量。相应地，RRC层响应第五通知消息，开启LTE或NR测量，便于后续UE向对应基站发送测量报告。
结合第一方面，在一些可能的实施例中，RRC层可向4G或5G基站发第六通知消息，用于通知重配UE和4G或5G基站连接时在该基站侧所需占用的无线资源，以在4G或5G基站侧对应重建UE和4G或5G基站的连接。相应地基站侧接收第六通知消息，重新配置UE和基站连接时在基站侧所需占用的无线资源，以在基站侧重建UE和该基站的连接。
结合第一方面，在一些可能的实施例中，NAS层接收第一通知消息后，可向4G或5G基站发送信令消息，以通知当前支持UE和4G或5G基站的连接，以在基站侧重建UE和4G或5G基站的连接。以重建UE和5G基站的连接为例，NAS层可向5G基站发送第二TAU消息，用于通知5G基站支持UE和5G基站的连接。相应地，5G基站接收第二TAU消息后，可重配UE和5G基站连接时在5G基站侧所需占用的无线资源，以在5G基站侧重建UE和5G基站的连接。
结合第一方面，在一些可能的实施例中，在重建UE和4G或5G基站的连接后，4G或5G基站可向RRC层发送第二RRC重配消息，以指示RRC层重配UE和4G或5G基站连接时在UE侧所需占用的无线资源，以在UE侧重建UE和4G或5G基站的连接。相应地，RRC层响应第二RRC重配消息，重配UE和4G或5G基站连接时在UE侧所需占用的无线资源，以在UE侧重建UE和4G或5G基站的连接。
可选地，第二RRC重配消息中携带spCellConfig配置字段，该字段中携带有配置参数，以实现UE和4G或5G基站的连接的重建，例如该配置参数包括下行接收信道、频点、小区标识ID等。
第二方面，本发明实施例提供了一种用户设备，所述计算设备包括用于执行如上第一方面所述方法的功能单元。
第三方面，本发明实施例提供了又一种用户设备，包括存储器及与所述存储器耦合的至少一个处理器；所述存储器用于存储指令，所述处理器用于执行所述指令；其中，所述处理器执行所述指令时执行上述第一方面所描述的方法。
在一些可能的实施方式中，所述用户设备还包括通信接口，所述通信接口与所述处理器通信，所述通信接口用于在所述处理器的控制下与其他设备(如网络设备等)进行通信。
第四方面，本发明实施例提供了一种无线收发单元，包括非接入NAS实体和无线资源控制RRC实体。其中，所述NAS实体用于执行如上第一方面中以NAS层为执行主体的相关实施步骤，所述RRC实体用于执行如上第一方面中以RRC层为执行主体的相关实施步骤。例如，所述NAS实体用于：
接收5G基站发送的第一RRC重配消息，所述第一RRC重配消息用于指示所述RRC层释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接；
根据所述第一RRC重配消息的指示，释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接。
第五方面，本发明实施例提供了一种系统芯片(例如SOC芯片)，包括应用处理器AP和基带处理器BP。该基带处理器中包括NAS层和RRC层。所述应用处理器用于确定UE是否处于低网速应用场景，所述基带处理器用于在UE处于低网速应用场景下，释放UE和4G或5G基站的连接。例如：
所述基带处理器用于通过无线接入网LTE-NR双连接技术将用户设备UE分别连接至4G基站和5G基站；
所述应用处理器用于确定UE处于灭屏状态，且所述UE的数据传输速率小于或等于预设速率；
所述基带处理器还用于在UE处于灭屏状态且UE的数据传输速率小于或等于预设速率，则释放UE和5G基站的连接。
关于本发明实施例中，未示出或未描述的内容具体可参见前述第一方面所述实施例中的相关描述，这里不再赘述。
第六方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储了用于网络连接处理的程序代码。所述程序代码包括用于执行上述第一方面所描述的方法的指令。
本发明在上述各方面提供的实现方式的基础上，还可以进行进一步组合以提供更多实现方式。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本发明实施例提供的一种系统网络框架示意图。
图2是本发明实施例提供的一种用户设备接口协议分层通信的示意图。
图3是本发明实施例提供的一种用户设备感知数据承载的通信示意图。
图4是本发明实施例提供的一种网络侧感知数据承载的通信示意图。
图5是本发明实施例提供的一种网络连接处理方法的流程示意图。
图6是本发明实施例提供的一种显示图标变化的界面示意图。
图7-图9是本发明实施例提供的另几种网络连接处理方法的流程示意图。
图10是本发明实施例提供的一种系统芯片的结构示意图。
图11是本发明实施例提供的一种无线收发单元的结构示意图。
图12是本发明实施例提供的一种用户设备的结构示意图。
具体实施方式
下面将结合本发明的附图，对本发明实施例中的技术方案进行详细描述。
首先，介绍本申请涉及的一些技术知识。
一、LTE-NR双连接技术
LTE-NR双连接技术中，UE同时与两个基站连接，分别称为主基站(master eNB，MeNB)和辅基站(secondary eNB，SeNB)。双连接可实现载波聚合，载波聚合具体承载在媒体访问控制(medium access control，MAC)层分离，需要MAC层对两个基站的物理层资源进行同步调度。双连接的承载分离在分组数据汇聚协议(packet data convergence protocol，PDCP)层进行，两个基站可独立进行物理层资源的调度，无需严格同步。下面主要从用户面和控制面对LTE-NR双连接技术进行详细阐述。
1.1控制面
参见图1示出一种LTE-NR双连接技术适用的系统网络框架示意图。如图1所示的系统网络框架中，包括主基站MeNB、辅基站SeNB、用户设备UE、移动管理实体(mobility management entity，MME)以及服务网关(serving-gateway，S-GW)。其中，主基站、辅基站和用户设备各自的数量并不做限定，这里以一个作为示例，并不构成限定。
基站(具体可为MeNB或SeNB)，为用户提供空中接口，用户设备UE通过无线连接到基站。进一步基站通过有线连接到运营商的核心网，实现业务通信。
用户设备UE，指支持连网的设备，其可包括但不限于手机、平板电脑(table personal computer)、个人数字助理(personal digital assistant，PDA)、移动上网装置(mobile internet device，MID)、可穿戴式设备(wearable device)以及其他支持和网络通信的设备。
移动管理实体MME，属于核心网的网元，主要负责提供非独立(non-standalone，NSA)组网信令传输、用户鉴权和漫游管理等。服务网关S-GW，主要负责本地网络用户数据的处理，例如分组数据的路由或转发等。
如图，主基站MeNB和移动管理实体MME之间通过S1-C接口连接，主基站MeNB和服务网关S-GW之间通过S1-U接口连接。主基站MeNB和辅基站SeNB之间可通过X2-C接口连接，辅基站SeNB还可根据实际业务需求通过S1-U接口与S-GW连接。在通信过程中，主基站MeNB通过X2-C接口与辅基站SeNB进行通信协调后可产生RRC消息，然后转发给UE。以实现网络系统信息的广播、切换、测量配置和测量报告的上报等功能，不做限定。
在实际应用中，接口是指不同网元之间的信息交互方式，不同接口之间通信时采用的接口协议可不相同。目前，无线制式的接口协议分为三层：L1物理层(physical layer，PHY)、L2数据链路层和L3网络层。如图2示例性给出一种用户设备UE的接口协议分层通信的示意图。如图2中，L1物理层PHY位于最底层，主要负责处理调制解调、天线映射或其他电信物理层功能。
L2数据链路层包括PDCP层、无线链路控制(radio link control，RLC)层和MAC层。其中，PDCP层主要负责执行包头压缩，以减少无线接口传输的比特流量。RLC层主要负责分段和连接、高层数据的顺序控制等处理。MAC层主要负责混合自动重传请求(hybrid automatic repeat request，HARQ)重传和上下行调度等。在实际应用中，LTE-NR双连接技术具体可在L2数据链路层实现载波聚合的承载和分离，具体如上文所述载波聚合具体承载在媒体访问控制(medium access control，MAC)层分离，双连接的承载分离位于分组数据汇聚协议(packet data convergence protocol，PDCP)层实现。
L3网络层包括非接入层(non-access stratum，NAS)和RRC层。其中，非接入层NAS可用于传输用户信息或控制信息，例如4G/5G通信链路或业务的建立、释放以及移动性管理信 息等。NAS层以下的协议层也可称为接入层(access stratum，AS)。RRC层支持用户设备UE和基站eNB间多种功能的信令协议，广播NAS层和AS层的系统消息，RRC连接建立、保持和释放，端到端无线承载(例如UE到网络侧间无线接入网链路)的建立、修改和释放，包括UE测量报告、小区切换和重选等功能在内的移动管理等。在实际应用中，UE可通过L3网络层与网络侧通信，以实现4G和5G接入网的建立、释放等操作，具体在本申请下文进行详述。
1.2用户面
LTE-NR双连接技术中定义有主小区群(master cell group，MCG)和辅小区群(secondary cell group，SCG)，并根据数据分离和转发方式不同，将数据承载分为三类：MCG承载、SCG承载和分离Split承载。其中，主小区群MCG是指至少一个主基站MeNB所在小区的集群，辅小区群是指至少一个辅基站SeNB所在小区的集群。
在实际应用中，UE和网络侧各自感知到的数据承载均不相同。具体如图3和图4分别示出UE和网络侧各自数据承载的通信链路。
如图3中，UE感知三种数据承载，分别为：MCG承载、SCG承载和分离Split承载。其中，MCG承载指数据从核心网的S-GW路由到主基站MeNB，并由MeNB直接转发给UE。SCG承载指数据从核心网的S-GW路由到辅基站SeNB，并由SeNB直接转发给UE。Split承载指数据在基站侧分离，可由主基站MeNB或辅基站SeNB向UE转发，也可由主基站MeNB或辅基站SeNB按预设的分离比例同时为UE传输数据，提供服务。
如图3中，当UE感知数据承载为MCG承载时，数据通信时所用的通信链路(也可称MCG链路)为：LTE PDCP/NR PDCP-LTE RLC-LTE MAC。当UE感知数据承载为SCG承载时，数据通信时所用的通信链路(也可称为SCG链路)为：NR PDCP-NR RLC-NR MAC。当UE感知数据承载为Split承载时，数据通信时所用的通信链路(也可称为Split链路)为：NR PDCP-LTE RLC-LTE MAC，或者NR PDCP-NR RLC-LTE MAC。其中，由于SCG链路仅使用到5G NR的网络资源，该SCG链路也可称为NR链路。MCG链路使用到4G LTE的网络资源，该MCG链路也可称为LTE链路。
请参见图4示出网络侧感知数据承载的通信示意图。如图4中，网络侧感知数据承载的方式有6种，分别为：主节点(master node，MN，具体可指主基站MeNB)终止的MCG承载、MN终止的SCG承载、MN终止的分离Split承载、辅节点(secondary node，SN，具体可指辅基站SeNB)终止的MCG承载、SN终止的SCG承载和SN终止的分离Split承载。
其中，MN终止的承载是指PDCP层在主基站MeNB的无线承载，不在辅基站SeNB的无线承载。反之，SN终止的承载是指PDCP层在辅基站SeNB的无线承载，不在主基站MeNB的无线承载。如图4所示，当网络侧感知的数据承载为MN终止的MCG承载时，数据通信时的通信链路为：LTE PDCP/NR PDCP-LTE RLC-LTE MAC。当网络侧感知的数据承载为MAN终止的Split承载时，数据通信时的通信链路为：NR PDCP-LTE RLC-LTE MAC，或者NR PDCP-NR RLC-LTE MAC。具体可根据实际需求选择，不做限定。关于网络侧感知的各种数据承载对应的通信链路，具体如图所示，这里不再赘述。
二、网络组网
目前，3GPP标准中定义了独立(standalone，SA)组网和非独立(non-standalone，NSA)组网两类网络部署方式。其中，独立组网是指新建一个现有的网络，包括新基站(En-gNB)、通信链路(NR链路)和核心网。非独立组网是指使用现有的4G基础设施，进行5G网络的部署。
对于5G来说，基于LTE-NR双连接技术的非独立组网NAS可使5G核心网和接入网分步部署，有利于5G的快速部署和应用。当5G部署进入独立组网SA阶段，LTE-NR双连接技术可拓展5G网络的覆盖，提升网络性能。由此可知，LTE-NR双连接技术是5G非独立组网NAS场景下的一个重要应用场景。
其次，介绍一些低网速应用场景。其中，低网速应用场景是指用户设备的用网需求较低的应用场景，具体可指用户设备UE进行数据传输的速率(简称为数据传输速率)较小，或UE所需传输的数据包的大小较小的应用场景。反之，用户设备的用网需求较高的应用场景可称为高网速应用场景。示例性地下面给出如下几种可能的低网速应用场景：
1、UE处于亮屏状态，且低网速运行，即UE的数据传输速率小于或等于预设速率。
本申请中，低网速是指UE的数据传输速率较小，例如小于或等于预设速率。具体地，该低网速具体可指UE的上行数据的传输速率较小，例如小于或等于第一预设速率；也可指UE的下行数据的传输速率较小，例如小于或等于第二预设速率；还可指包括UE的上行数据和下行数据在内的所有数据的传输速率较小，例如小于或等于第三预设速率等。为方便描述，不论是上行数据的传输速率还是下行数据的传输速率，亦或是包括上行数据和下行数据在内的所有数据的传输速率，本申请均统称为数据的传输速率，简称为数据传输速率。该数据传输速率是指单位时间内UE支持传输数据的比特数，例如50比特每秒bit/s。
该预设速率可为系统自定义设置的，例如根据用户喜欢或实际需求自定义设置的，或者根据大量实验数据统计获得的数值等。本申请涉及的第一预设速率、第二预设速率以及第三预设速率均为系统自定义设置的，它们可以相同、也可不相同，不做限定。
在实际应用中，UE低网速运行的场景有很多，下面示例性给出三种。
第一种，在UE中开启低网速应用运行的功能、关闭高网速应用运行的功能。具体地，为满足低网速的用网需求，UE可在省电模式中进行如下应用的功能设置：允许低网速应用运行、禁止高网速应用运行，即开启低网速应用运行的功能、关闭高网速应用运行的功能。可理解地，在关闭UE中高网速应用运行的功能后，UE中只允许低网速应用运行。由于这些低网速应用中允许的数据传输速率较小，此时UE可确定UE处于低网速运行中。可选地，当UE中同时运行多个低网速应用时，它们的数据传输速率总和也比较小，例如小于预设速率，同样可满足低网速用网需求，此时仍确定UE处于低网速运行中。
其中，低网速应用是指UE中安装的对数据传输速率要求较低的应用，例如要求应用中待传输数据的传输速率小于第四预设速率等。该低网速应用具体可为系统自定义设置的，也可为用户手工自定义设置的，例如照相机、电话、短信、备忘录等应用。
相应地，高网速应用是指UE中安装的对数据传输速率要求较高的应用，例如要求数据传输速率大于或等于第五预设速率。该高网速应用同样也可为系统自定义设置的，或用户根据个人偏好自定义设置的，例如音乐应用和视频应用等。
可选地，为排除UE是短暂低网速运行、或排除误判等情况，UE增加时长判断条件。具体地，UE可获取UE的数据传输速率小于或等于预设速率的持续时长，当该持续时长大于或 等于一定阈值(例如1分钟)等，此时可确定UE处于低网速运行中。否则，仍然确定UE不处于低网速运行。即是，UE处于低网速应用场景的识别条件具体可为：UE处于亮屏状态下，且UE在一段时长内的数据传输速率均小于或等于预设速率。
第二种，UE和其他设备交互心跳包，以维持正常的通信连接。具体地，当UEUE不与其他设备(例如基站)进行业务通信时，即UE无需传输业务数据，为维持UE和其他设备之间的通信连接，通常UE可周期性地向其他设备发送心跳包，以通知UE与其他设备保持通信连接。在实际应用中，该心跳包的数据传输速率通常比较小，例如几kb/s。该心跳包的大小也比较小，例如几kb。通常在不携带业务数据的情况下，该心跳包可为空包，即仅携带包头、不携带业务数据。
第三种，UE处于低网速运行的场景，例如游戏场景、导航场景。示例性地，在游戏场景中，UE正在运行游戏应用。在实际应用中，游戏应用仅对UE中中央处理器(central processing unit，CPU)的运行速率要求较高，相比而言对UE的数据传输速率(即网络速率)要求较低。因此，当UE处于游戏场景中，可确定UE处于低网速运行中。
且本申请中，UE的屏幕状态可分为多种，可以为亮屏状态、灭屏状态、锁屏状态以及解锁状态，在实际应用中UE具体可以处于亮屏解锁状态、亮屏锁屏状态，通常UE处于灭屏状态时也是处于锁屏状态。其中，UE的屏幕状态具体可通过软件程序或硬件检测方式识别。以软件程序检测方式为例，UE可通过电源管理powermanager下的人机交互isInteractive代码中定义的屏幕显示值isScreenOn先确定屏幕的亮灭状态，例如当isScreenOn为true时，表示UE处于亮屏状态；反之，确定UE处于灭屏状态。在确定到UE处于亮屏状态后，UE可再通过屏幕锁定isScreenLocked代码检测获知UE是否进一步被锁定，如果锁定则可确定UE处于锁屏状态，具体地UE可处于亮屏锁屏状态；否则，确定UE处于亮屏状态，具体地UE处于亮屏解锁状态。
或者，UE可通过自身系统发送的安卓Android广播消息，确定UE的屏幕状态。具体地，当Android广播消息用于指示屏幕亮屏时，可确定UE处于亮屏状态；当用于指示屏幕灭屏时，可确定UE处于灭屏状态；当用于指示屏幕锁屏时，可确定UE处于锁屏状态等等。关于UE屏幕状态的识别方式可有多种，本发明这里不做一一列举。
2、UE处于亮屏状态，且UE所需传输的数据包的大小小于或等于第一预设阈值。
在亮屏状态下，为满足低网速应用场景，UE除了从数据传输速率这一维度考虑外，还可从UE所需传输的数据量(即所需传输的数据包的大小)进行考虑。其中，UE所需传输数据包的大小具体可指应用中UE所需传输的所有数据包的大小(即所需传输的数据量)，或者指单位时间内UE所需传输的数据包的大小。
具体地，在UE处于亮屏状态下，若UE所需传输的数据包的大小较大，例如大于第一预设大小阈值，则UE可认为当前自身的通信负载较大，即所需传输的数据包或数据量较大，用网需求较高，相应地UE可认为自身处于高网速应用场景。反之，若UE所需传输的数据包的大小较小，则UE可认为自身的通信负载较小，即所需传输的数据包或数据量较小，用网需求不高，相应地UE可认为自身此时处于低网速应用场景。
3、UE处于断网状态，即关闭UE的移动数据通信功能。
不论UE处于任何屏幕状态(例如亮屏状态或灭屏状态等)下，当UE无法连网(具体可指断开UE的移动数据通信功能或移动数据连接功能)，可直接确定UE处于低网速应用场景。 换句话说，当UE处于断网状态，可确定UE处于低网速应用场景。其中，这里的断网状态并不是指真正意义上地、严格地完全断网，而是指断开用户设备通信所用的移动网络，并不影响用户设备使用其他数据网络进行通信。具体地可仅关闭UE的移动数据通信功能，例如关闭UE的2G、3G或4G上网功能，保留UE与基站eNB之间的数据网络(例如电话网络等)。此时，UE还能和基站之间进行正常地数据通信。而严格意义上的完全断网是指UE与所有网络均无通信，UE作为一台死机存在。由于UE没有进入任何网络，网络侧无法感知UE的存在，进而无法对该UE进行网络监测或监控。
举例来说，以用户设备UE为手机为例。本实施例中，手机的断网状态是指关闭手机的移动数据连接功能，即关闭手机的2G、3G、4G以及5G等移动网络的上网功能，但并不断开手机与其他数据网络的正常通信，例如手机和基站侧(核心网、电话网)间的正常通信。相应地，由于手机与基站侧的电话网络并未断开，并不妨碍手机与电话网络的数据通信，因此手机能正常接听或拨打电话。然而如果手机在严格意义上的完全断网状态下，该场景下手机与所有的通信网络(包括基站侧的核心网以及电话网等)均断开、不支持相互通信，此时已完全断开手机的数据传输功能，例如手机此时也无法接听电话或拨打电话。
4、UE的整机温度大于或等于预设温度阈值。
无论在UE处于亮屏状态还是灭屏状态，当UE的整机温度过高，例如整机温度大于或等于预设温度阈值时，容易导致死机、断网，严重可以烧毁UE设备，具体可烧毁UE设备的中央处理器(central processing unit，CPU)。为降低整机温度、保护设备自身，UE需自动关闭正在运行的应用，例如首先关闭功耗较高、网速要求较高的应用，如视频应用等，其次关闭功耗较低、网速要求较低的应用等，如天气应用、日历应用等。因此，当UE检测到自身整机温度过高，可认为UE当前已关闭网速要求较高的应用，即关闭UE中的高网速应用，此时UE处于低网速应用场景。
其中，UE整机温度的检测方式并不做限定，例如当UE中安装有温度感应器时，可通过温度感应器检测并查看UE的整机温度；或者，当UE中没有安装温度感应器时，可通过UE中安装的第三方软件(例如鲁大师等温度测量应用)来检测UE的整机温度。
在实际应用中，UE整机温度是指整个UE设备中所有部件各自运行时的温度的总和，由于每个部件的温度获取均存在一定的误差，这样将导致UE整机温度的获取同样存在较大地误差，其获取的准确度或精确度较低。因此在实际应用中，UE整机温度通常用UE设备中一些核心部件的温度替代，例如中央处理器CPU温度、片上系统芯片(system on chip，SOC)温度和电池温度等等。
例如，CPU作为UE整机性能的最重要的硬件，其性能表现直接影响UE整机的性能，因此CPU温度将作为整机温度的一个重要体现温度。以整机温度为CPU温度为例，UE设备可进入自身的输入输出系统(basic input output system，BIOS)中获取CPU温度；或者，UE设备可运行CPU温度获取软件(例如Python脚本文件等)，以获取CPU温度。便于后续基于该CPU温度来识别UE所处的应用场景为高网速应用场景还是低网速应用场景，这里不再赘述。
5、UE处于灭屏状态，且低网速运行，即UE的数据传输速率小于或等于预设速率。
灭屏状态下，UE处于低网速运行的场景有多种，可以有如下两种。
第一种，灭屏状态下，UE支持后台应用的运行，例如播放音乐等。为满足低网速的用网需求，UE可进行如下应用的功能设置：允许低网速应用运行、禁止高网速应用运行，即开启低网速应用运行的功能、关闭高网速应用运行的功能。可理解地，在关闭UE中高网速应用运行的功能后，UE中只允许低网速应用运行。由于这些低网速应用中允许的数据传输速率较小，此时UE可确定UE处于低网速运行中，UE处于低网速应用场景。可选地，当UE中同时运行多个低网速应用时，它们的数据传输速率总和也比较小，例如小于预设速率，同样可满足低网速用网需求，此时仍确定UE处于低网速运行中。
第二种，当UE处于灭屏状态时，用户设备通常没有数据收发，或者仅保持必要的保证应用程序处于唤醒状态的数据包，例如心跳测试包或者监听数据包等，通常这一类型的数据包是周期性的收发并且数据包的大小也比较小。在上述情况下，可以视为用户设备对网络参数等要求较低，用网需求较低，认为UE处于低网速运行，即处于低网速应用场景。
可选地，在UE灭屏后，其数据传输速率通常会变得比较缓慢，例如数据传输速率小于预设速率。因此在不考虑低网速应用场景识别准确度的情况下，当UE检测到自身处于灭屏状态时，可直接认为UE处于低网速应用场景。
6、UE处于灭屏状态，且UE所需传输的数据包的大小小于或等于第二预设阈值。
灭屏状态下，UE同样存在数据的收发，例如UE灭屏下载数据、灭屏传输心跳包等。为满足低网速的用网需求，UE除了考虑数据传输速率外，还可从UE所需传输的数据量(即所需传输的数据包的大小)这一维度进行识别。
具体地，在UE处于灭屏状态下，为满足低网速应用场景的低用网需求，可检测UE所需传输的数据包的大小来确定UE是否处于低网速应用场景。具体的当UE所需传输的数据包的大小小于第二预设大小阈值，则UE可认为自身的通信负载较大，用网需求较高，确定UE不处于低网速应用场景。反之，认为UE的通信负载较小，用网需求较低，确定UE处于低网速应用场景。
举例来说，以低网络应用场景为交互心跳包的应用场景为例。在UE设备无需进行业务通信时，为了维持UE和网络侧间的通信连接，通常采用心跳包机制来实现UE和网络侧之间连接的维护。具体地，UE可周期性地向网络侧发送心跳包，以通知UE当前与网络侧存在通信连接，以保持UE和网络侧之间的长连接。相应地，网络侧接收该心跳包后，同样可向UE返回响应包，以通知网络侧获知UE与网络侧存在通信连接。在实际应用中，该心跳包的大小很小，通常为几kb，也可为空包(即不携带任何业务数据，仅携带包头的数据包)等。在该场景下，UE显然处于低网速应用场景。
接着，为解决传统技术在低网速应用场景中采用LTE-NR双连接技术通信时存在的网络资源浪费、设备功耗较高等问题，下面阐述本申请实施例涉及的网络连接处理相关实施例。
请参见图5，是本发明实施例提供的一种网络连接处理方法的流程示意图。如图5所示的方法包括如下实施步骤：
S5101、用户设备UE的应用处理器(application processor，AP)检测到UE处于低网速应用场景时，向非接入NAS层发送第一信令消息。该第一信令消息用于通知UE当前处于低网速应用场景，可断开LTE-NR双连接中的某一接入网连接。相应地，NAS层接收第一信令消息。
本申请中，UE检测到自身处于低网速应用场景时，例如通过应用处理器AP检测到UE处于低网速应用场景，则可向UE的NAS层发送第一信令消息。该第一信令消息用于通知UE处于低网络应用场景，可释放LTE-NR双连接中的任一接入网连接。其中，该第一信令消息也可称为第一通知消息，本发明不做限定。关于UE处于低网速应用场景的具体实施方式，可参见前述实施例中的相关阐述，这里不再赘述。
具体地，该第一信令消息可为私有命令消息，例如注意(attention，AT)命令消息；也可为传统命令消息，例如用于关闭NR连接通信功能(即关闭5G通信功能)的at^syscfgex命令消息等。当第一信令消息为私有命令消息时，例如AT命令消息，AP可通过AT命令接口向NAS层发送AT命令消息，以释放LTE或NR连接。此情况下，UE不感知自身通信时所采用的接入网，在UE释放LTE-NR双连接中的LTE或NR连接后，UE界面中的显示图标不会发生变化。用户无法通过显示图标获知UE当前通信所采用的接入网连接，以及无法获知UE当前具体是释放LTE-NR双连接中的LTE连接，还是释放NR连接。其中，该显示图标用于标识UE连网通信时所采用的无线接入网或无线连接通信技术，例如LTE、NR或LTE-NR等。
当第一信令消息为传统命令消息时，AP可向NAS层发送传统命令消息，以释放LTE或NR连接。例如AP可向NAS层发送at^syscfgex命令消息，以关闭NR连接通信功能，释放NR连接。此情况下，在UE释放LTE-NR双连接中的LTE或NR连接后，UE界面中的显示图标将发生变化。用户通过该显示图标可获知UE当前通信所采用的接入网连接，即获知UE具体释放LTE-NR双连接中的LTE连接或者NR连接。
在实际应用中，该显示图标具体可为系统自定义设置的，用于区分UE连网所采用的接入网，例如当UE采用4G LTE连网通信时，该显示图标可为字符4G等等。举例来说，请参见图6示出一种可能的LTE-NR双连接切换的图标变化示意图。如图6，图6中的(a)示出UE采用LTE-NR双连接技术连网，以分别与网络侧的4G基站和5G基站相互通信，其中如图6中的(a)用于标识LTE-NR双连接的显示图标可为4G-5G。图6中的(b)，UE释放LTE-NR双连接中的NR连接后，仅保留LTE连接入网与4G基站通信，具体如图用于标识LTE连接的显示图标可为4G。图6中的(c)，UE释放LTE-NR双连接中的LTE连接，保留NR连接入网与5G基站相互通信，如图用于标识NR连接的显示图标可为5G。其中，图6示出的三种无线连接通信技术的显示图标仅为一种可能的示例，并不构成限定。
第一信令消息用于通知释放LTE-NR双连接中的任一接入网连接，该任一接入网可为UE系统自定义设置的接入网。例如根据UE实际用网需求释放UE和网络侧之间通信所用的LTE或NR接入网连接，下文简称LTE或NR连接。示例性地，当UE当前的用网需求较高，例如UE当前所需传输的数据包的大小大于预设第二阈值，且小于或等于预设第一阈值，则系统可默认释放LTE连接；反之，当UE当前的用网需求不够高，例如UE当前所需传输的数据包的大小小于或等于预设第三阈值等，则系统可默认释放NR连接，保留LTE连接，即可保证UE的低用网需求。该预设第一阈值、预设第二阈值以及预设第三阈值均为系统自定义设置的，其中预设第二阈值小于预设第一阈值，预设第二阈值和预设第三阈值它们可以相等，也可不等，本申请不做限定。
本申请中涉及的NR连接是指UE和5G基站之间的连接，LTE连接是指UE和4G基站的连接。相应地本申请中涉及的释放NR连接是指释放UE和5G基站的连接，释放LTE连接是指释放UE和4G基站的连接。
S5102、NAS层向RRC层发送第二信令消息，该第二信令消息用于通知RRC层不支持使用LTE或NR连接通信。相应地，RRC层接收该第二信令消息。
NAS层接收第一信令消息后，可向RRC层发送第二信令消息(也可为第二通知消息)，用于通知RRC层当前不支持LTE或NR连接通信，即RRC层无法使用LTE或NR连接进行数据通信。可选地，该第二信令消息还用于通知RRC层关闭针对该LTE或NR接入网的测量，以下简称关闭LTE或NR测量。
在实际应用中，该第二信令消息中包含有至少一个指示标识位，用于通知RRC层进行相应地功能操作。该指示标识位的实现形式不做限定，例如其可为字符串、数值或数组等。例如，当指示标识位为“00”时，表示通知RRC层不支持使用LTE或NR双连接通信；“01”表示通知RRC层支持使用LTE或NR双连接通信；“00”表示RRC层不支持使用LTE或NR双连接通信，且关闭LTE或NR测量的功能；“11”表示RRC层支持使用LTE或NR双连接通信，且开启LTE或NR测量的功能。
具体实现时，当UE的AP检测到UE处于低网速应用场景时，可向UE的无线调制解调modem模块发送第一信令消息，用以通知释放LTE-NR双连接中的任一接入网连接。该modem模块具体可为UE中部署的基带处理器(baseband processor，BP)，其包括有NAS层和RRC层。关于AP和BP的介绍，具体在本申请下文详述。相应地，modem模块介绍第一信令消息后，可通过NAS层向通知RRC层发送第二信令消息，以通知UE不支持LTE或NR连接通信，关闭LTE或NR测量。
进一步可选地，该第二信令消息还可用于通知RRC层关闭UE的上行数据传输功能、关闭该LTE或NR测量报告的上报功能等，例如禁止UE向网络侧发送数据，或发送LTE或NR测量报告等。
S5103、RRC层根据第二信令消息的指示，关闭LTE或NR连接通信。
相应地，RRC层接收该第二信令消息后，可根据第二信令消息的指示关闭LTE或NR连接的任何通信功能。可选地，还可关闭自身的LTE或NR测量，避免后续向相应地基站发送该LTE或NR测量的报告，简称为LTE或NR测量报告。即，RRC层可关闭该LTE或NR测量报告的上报功能，这样网络侧(具体可为网络侧的基站)无法接收到UE发送的该LTE或NR测量报告。
其中，LTE或NR测量具体用于测量LTE或NR接入网的通信链路(即LTE或NR链路)的信号质量，该LTE或NR测量也是指LTE或NR链路测量。在一些可能的实施例本申请中“LTE”和“LTE链路”、“NR”和“NR链路”可以相互替换使用，不做限定。相应地，该LTE或NR测量报告可包括但不限于测量标识ID、接入网通信链路(LTE或NR链路)的测量结果，例如下行参考信号的接收功率(reference signal received power，RSRP)、下行参考信号的接收质量(reference signal received quality，RSRQ)等信息。
S5104、RRC层向网络侧(network，NW)发送第三信令消息，该第三信令消息用于通知网络侧释放LTE或NR连接配置时在网络侧所占的无线资源，以释放网络侧的LTE或NR连接。相应地，网络侧NW接收第三信令消息。
RRC层接收第二信令消息后，可通过未断开的接入网向网络侧发送第三信令消息。该第三信令消息用于通知网络侧释放LTE或NR连接在网络侧所占用的无线资源(或网络资源)，以释放网络侧的LTE或NR连接，即在网络侧释放UE和网络侧的4G基站或5G基站的连接。
具体地，当释放NR连接时，RRC层可通过LTE接入网向网络侧发送第三信令消息，用于通知释放NR连接配置时在网络侧所占用的无线资源，以释放网络侧的NR连接，即释放UE和网络侧的5G基站的连接。
在实际应用中，该第三信令消息可为SCG链路失败消息，具体用于释放NR连接在网络侧所占的无线资源，例如NR连接通信所用SCG链路中包含的各功能层(如NR PDCP、NR RLC、NR MAC以及NR PHY)相关的无线资源等。以释放NR PHY相关的无线资源为例，具体可释放下行接收信道、频点、小区标识ID等信息。
在5G的不同协议版本中，该SCG链路失败消息的具体实施方式可以不相同。例如，在R12标准协议中，该SCG链路失败消息具体可为SCGFailureInformation-r12-IEs信令消息，其包括有协议中自定义设置的参数，例如失败类型failureType-r12等。以失败类型为例，其具体可包括以下中的任一项或多项参数的组合：定时器时延(即UE和网络侧支持数据传输的时延)、随机接入问题randomAccessProblem、RLC重传最大次数rlc-MaxNumRetx(允许RLC重传数据包的最大次数)、SCG链路变化失败scg-ChangeFailure(即不支持SCG链路的切换)等，本申请不做限定。
相应地当释放LTE连接时，RRC层可通过NR接入网向网络侧发送第三信令消息，具体用于释放LTE连接在网络侧所占的无线资源，例如LTE连接通信所用MCG链路中包含的各功能层(如LTE PDCP、LTE RLC、LTE MAC以及LTE PHY)相关的无线资源等。在不同协议版本中，该第三信令消息的具体实现并不做限定。相应地，网络侧接收该第三信令消息后，可根据该第三信令消息的指示，释放LTE连接在网络侧所占的无线资源，例如释放下行接收信道、频点、小区标识ID等信息，从而释放网络侧的LTE连接，即释放UE和4G基站的连接。
可选地，该第三信令消息还可用于通知UE(具体可为UE的RRC层)已关闭LTE或NR测量，关闭该LTE或NR测量报告的上报功能。相应地，网络侧无法接收到UE侧发送的该LTE或NR测量报告。
S5105、网络侧向RRC层发送第四信令消息，该第四信令消息用于通知RRC层释放LTE或NR连接配置时在UE侧所占的无线资源，以释放UE侧的LTE或NR连接。相应地，RRC层接收第四信令消息。
S5106、RRC层根据第四信令消息的指示，释放UE侧的LTE或NR连接。
网络侧在释放网络侧的LTE或NR连接后，可向RRC层发送第四信令消息，用于通知RRC层释放该LTE或NR连接配置时在UE侧所占的无线资源，以释放UE侧的LTE或NR连接，即在UE侧释放UE和网络侧的4G基站或5G基站的连接。
在实际应用中，该第四信令消息具体可为第一RRC重配消息，用于通知RRC层释放LTE或NR连接配置或建立时在UE侧所占用的无线资源，也可称为资源配置信息。具体地以释放NR连接为例，第一RRC重配消息中携带释放releast字段，用于指示RRC层释放NR连接配置时在UE侧所占用的无线资源，例如释放NR PDCP、NR RLC、NR MAC以及NR PHY等传输功能层相关的无线资源等等，具体可释放NR连接在网络侧配置时涉及的相关配置参数，例如频点、小区标识等参数。
在实际应用中，在LTE接入网能满足低网速应用场景下UE的用网需求时，UE和网络侧会优先释放NR连接，以将LTE-NR双连接切换为LTE接入网连接，实现单LTE连接下的数据通信，这样可避免双连接情况下存在的网络资源浪费、设备功耗较多等问题，有利于节省网络资源，提升网络利用的效率。
以释放NR连接为例，RRC层接收到网络侧发送的第四信令消息(即RRC重配消息)后，由于UE的RRC层具体包括LTE RRC(简称为LRRC)和NR RRC(简称为NRRC)。该第四信令消息具体用于指示NRRC层释放NR连接时在UE侧所占的无线资源，不释放LRRC层相关的无线资源。具体地，网络侧可向LRRC发送第四信令消息，LRRC将第四信令消息转发给NRRC，以响应第四信令消息释放UE侧的NR连接；或者网络侧直接向LRRC层发送第四信令消息，以通过NRRC来控制释放NR连接配置时在UE侧所占的无线资源。
可选地，在RRC层响应第一RRC重配消息后，可向网络侧发送相应地RRC配置响应消息，以通知RRC层已释放UE侧的LTE或NR连接。
S5107、RRC层可向NAS层发送第五信令消息，该第五信令消息用于通知NAS层已释放UE侧的LTE或NR连接。
在RRC层释放UE侧的LTE或NR连接后，可向NAS层发送第五信令消息。该第五信令消息用于通知NAS层已释放LTE或NR连接在UE侧所占用的无线资源，释放了UE侧的LTE或NR连接。即，UE和网络侧之间无法再使用释放的LTE或NR连接相互通信。该第五信令消息也可称为第三通知消息，用于对应通知UE侧的LTE或NR连接已释放。
在实际应用中，该第五信令消息中同样包含至少一个指示标识位，该指示标识位用于指示NAS层进行相应地功能操作。关于该指示标识位具体可参见前述实施例中的相关阐述，这里不再赘述。例如，第五信令消息中携带指示标识位“0”，用于表示或通知RRC层已释放UE侧的LTE连接。第五信令消息中携带指示标识位“1”，用于表示或通知RRC层已释放UE侧的NR连接等等，本申请不做限定。
在UE断开LTE-NR双连接中任一接入网的通信连接后，若UE不再处于低网速应用场景(例如从低网速应用场景迁移至高网速应用场景)，则UE可采用如图7所述方法的流程步骤来恢复LTE-NR双连接通信。如图7所示的方法包括如下实施步骤：
S5108、UE的AP检测到UE不处于低网速应用场景时，向NAS层发送第六信令消息，该第六信令消息用于通知UE不处于低网速应用场景，需重建或恢复已断开的该任一接入网(LTE或NR接入网)连接。相应地，NAS层接收该第六信令消息。
本申请中，UE不处于低网速应用场景的具体实现方式有多种，例如UE通过AP检测到UE不满足上文提及低网速应用场景的判断条件，则可确定UE不处于低网速应用场景，或直接认为UE处于高网速应用场景。示例性地，当UE处于低网速应用场景的判断条件为：UE处于灭屏状态，且UE的数据传输速率小于或等于预设阈值，则当UE的AP检测到UE从灭屏状态进入为亮屏状态后，即UE处于亮屏状态，则可认为UE不处于低网速应用场景。
进一步UE的AP可向NAS层发送第六信令消息，该第六信令消息用于通知UE当前不处于低网速应用场景，需恢复LTE-NR双连接中已断开的任一接入网连接，即需恢复图5中对应断开的LTE或NR连接。在实际应用中，该第五信令消息也可称为第四通知消息，用于通知UE不处于低网速应用场景，或具体用于通知UE不处于低网速应用场景的判断条件，例如通知UE处于亮屏状态等。
具体地，该第六信令消息同样可为私有命令消息，如AT命令消息；或者，也可为传统命令消息，例如用于开启NR连接通信功能(包含重建NR连接)的at^syscfgex命令消息等。当第六信令消息为AT命令消息时，AP同样通过AT命令接口向NAS层发送AT命令消息，以重建LTE 或NR连接。此情况下，UE不感知自身通信所采用的接入网，UE界面中的显示图标不会发生变化。
反之，当第六信令消息为传统信令消息时，AP向NAS层发送传统信令消息，以重建LTE或NR连接。例如at^syscfgex命令消息，可重建NR连接，重启或恢复NR连接通信功能，即恢复5G通信功能。此情况下，UE界面中的显示图标会发生变化，用户通过观察该显示图标可获知UE当前通信所采用的接入网或无线连接通信技术，如LTE-NR等。
需要说明的是，不论是私有命令消息还是传统命令消息，均可采用指示标识位的方式来通知释放或重建LTE/NR连接；或者，UE可采用不同的命令消息(即信令消息)来通知释放或重建LTE/NR连接。例如，私有命令消息或传统命令消息中携带有指示标识位“030201”，其用于通知释放NR连接；反之，当私有命令消息或传统命令消息中携带有指示标识位“08030201”，其具体用于通知重建或恢复NR连接。或者，当私有命令消息或传统命令消息为CLOSE命令消息时，其用于通知释放NR连接；反之，当私有命令消息或传统命令消息为OPEN命令消息时，其用于通知重建NR连接等。
S5109、NAS层向RRC层发送第七信令消息，该第七信令消息用于通知RRC层支持使用LTE或NR连接通信，开启LTE或NR测量。相应地，RRC层接收第七信令消息。
S5110、RRC层根据第七信令消息的指示，允许LTE或NR连接通信，开启LTE或NR测量。
在实际应用中，该第七信令消息也可称为第五通知消息，其中包含有至少一个指示标识位，用于通知RRC层进行相应地功能操作，例如通知RRC层恢复LTE或NR连接通信，重启LTE或NR测量等等。关于步骤S5108-S5110对应可参考前述图5中关于步骤S5101-S5103的相关内容阐述，这里不做赘述。
S5111、RRC层与网络侧交互，以通知重配网络侧的LTE或NR连接。例如，RRC层在检测到LTE或NR小区时，向网络侧发送LTE或NR测量报告。相应地，网络侧接收该LTE或NR测量报告。
本申请中，RRC层可向网络侧发送第六通知消息(或信令消息)，用于通知网络侧重新配置LTE或NR连接在网络侧所需占用的无线资源，以重建网络侧的LTE或NR连接。在实际应用中，该第六通知消息具体可为LTE或NR的测量报告。RRC层在开启LTE或NR测量后，可进行UE的小区测量以及上报相应地测量报告。具体地本申请中，RRC层在检测到LTE或NR小区时，可向网络侧(具体为网络侧的4G或5G基站)发送该LTE或NR的测量报告。相应地，网络侧接收该测量报告后，可获知UE和网络侧支持LTE或NR连接。网络侧可重配该LTE或NR连接在网络侧所需占用的无线资源，例如重配LTE或NR连接在网络侧通信所需使用的NR PDCP、NR RLC、NR MAC以及NR PHY等传输功能层相关的无线资源等，以重建网络侧的LTE或NR连接。
S5112、网络侧向RRC层发送第八信令消息，该第八信令消息用于指示RRC层重建UE侧的LTE或NR连接。相应地，RRC层接收第八信令消息。
进一步网络侧还可向RRC层发送第八信令消息，用以通知RRC层重建UE侧的LTE或NR连接。在实际应用中，该第八信令消息具体可为第二RRC重配消息，用于通知RRC层重配LTE或NR连接需在UE侧所占用的无线资源。具体地以重建NR连接为例，该第二RRC重配消息中携带有spCellConfig配置字段，该字段中包括有NR配置参数，该NR配置参数具体为NR连接在UE侧所需占用的无线资源的相关参数，例如NR PDCP、NR RLC、NR MAC以及NR PHY等传 输功能层相关的无线资源配置参数等。具体地在重配NR PHY时，NR配置参数包括下行接收信道、频点、小区标识ID等参数。
S5113、RRC层根据第八信令消息的指示，重建UE侧的LTE或NR连接。
RRC层接收网络侧发送的第八信令消息(具体可为第二RRC重配消息)后，可根据该第八信令消息的指示，重建配置LTE或NR连接时在UE侧所需占用的无线资源，以重建UE侧的LTE或NR连接。示例性地，以重建NR连接为例，RRC层可响应第二RRC重配消息的指示，重新配置NR连接时需在UE侧占用诸如NR PDCP、NR RLC、NR MAC以及NR PHY等传输功能层相关的无线资源，以重建UE侧的NR连接，便于后续UE使用该NR连接与网络侧(具体可为网络侧的5G基站)相互通信。
可选地，RRC层响应该第二RRC重配消息，完成UE侧的LTE或NR连接的重建后，可向网络侧发送相应地RRC重配响应消息，用以通知RRC层已重建UE侧的LTE或NR连接。
S5114、RRC层向NAS层发送第九信令消息，该第九信令消息用于通知RRC层已重建UE侧的LTE或NR连接。
RRC层在重建UE侧的LTE或NR连接之后，RRC层可向NAS层发送第九信令消息(具体也可称为第四通知消息)，用以通知RRC层已恢复UE侧的LTE或NR连接的重建，后续UE和网络侧之间可采用LTE-NR双连接通信。
通过实施本发明实施例，能够在低网速应用场景中通过信令消息与网络侧交互，断开LTE-NR双连接中的任一接入网(如LTE或NR接入网)连接，关闭该LTE或NR测量报告的上报功能，以减少该LTE或NR连接通信的额外耗电，从而节省设备功耗，同时也提升了网络利用的效率。
请参见图8，是本发明实施例提供的另一种网络连接处理方法的流程示意图。如图8所示的方法包括如下实施步骤：
S8101、UE的AP检测到UE处于低网速应用场景时，向UE的NAS层发送第十信令消息。该第十信令消息用于通知UE处于低网速应用场景，可释放LTE-NR双连接中的任一接入网连接。相应地，NAS层接收第十信令消息。
S8102、NAS层向RRC层发送第十一信令消息，该第十一信令消息用于通知RRC层不支持LTE或NR连接通信，关闭LTE或NR测量。相应地，RRC层接收第十一信令消息。
S8103、RRC层根据第十一信令消息的指示，关闭LTE或NR连接通信，关闭LTE或NR测量。关于步骤S8101-S8103对应可参考前述关于步骤S5103-S5103的相关阐述，这里不再赘述。
S8104、NAS层向网络侧发送第十二信令消息，用于通知网络侧不支持LTE或NR连接通信。相应地，网络侧接收第十二信令消息。
本申请中，NAS层在通过第十信令消息确定到需释放LTE或NR连接后，可向网络侧(具体可为网络侧的基站)发送第十二信令消息，以对应通知网络侧的4G/5G基站不支持LTE或NR连接通信。相应地，网络侧接收第十二信令消息后，可释放该LTE或NR连接在网络侧所占的无线资源。例如释放NR连接，网络侧的5G基站接收第十二信令消息后，可释放NR连接在网络侧所占的无线资源，具体可释放诸如NR PDCP、NR RLC、NR MAC以及NR PHY等传输功能层相关的无线资源，以释放网络侧的NR连接，释放UE和5G基站之间的连接。又如释放LTE连接，网络侧的4G基站接收第十二信令消息后，可释放LTE连接在网络侧所占的无线资 源，具体可释放LTE PDCP、LTE RLC、LTE MAC以及LTE PHY等传输功能层相关的无线资源，以释放网络侧的LTE连接，释放UE和4G基站之间的连接。
在实际应用中，该第十二信令消息具体可为第一跟踪区更新(tracking area update，TAU)消息。该第一TAU消息中携带有系统自定义设置的参数，用于通知网络侧无法支持LTE或NR连接的任何通信功能。例如，第一TAU消息中携带有指示参数，该指示参数用于指示当前是否支持LTE-NR双连接中的NR连接。在实际应用中，该指示参数可用指定字符、指定数值或指定字符串表示，例如该指示参数为“1”时，表示当前支持NR连接的通信功能；反之，当该指示参数为“0”时，表示当前不支持NR连接的通信功能。
S8105、网络侧向RRC层发送第十三信令消息，该第十三信令消息用于通知RRC层释放UE侧的LTE或NR连接。相应地，RRC层接收第十三信令消息。
S8106、RRC层根据第十三信令消息的指示，释放UE侧的LTE或NR连接。
在实际应用中，第十三信令消息具体可为RRC重建消息，用于通知RRC层释放LTE或NR连接配置时在UE侧所占的无线资源，以释放UE侧的LTE或NR连接。可选地，RRC层释放UE的LTENR连接后，同样可向NAS层发送信令消息通知RRC层已释放UE的LTENR连接。关于步骤S8105-S8106具体可对应参考前述图5中S5105-S5106的相关内容阐述，这里不再赘述。关于本申请实施例中未示出或未描述的内容，具体可对应参考前述图5所述实施例中的相关介绍，这里不再赘述。
可选地，在UE断开LTE-NR双连接中任一接入网的通信连接后，若UE不再处于低网速应用场景，则UE可采用如图9所述方法的流程步骤来恢复UE和网络侧之间的LTE-NR双连接通信。如图9所示的方法具体可包括如下实施步骤：
S8107、UE的AP检测到UE不处于低网速应用场景时，向NAS层发送第十四信令消息。该第十四信令消息用于通知UE不处于低网速应用场景，需重建或恢复已断开的该任一接入网连接(即恢复LTE或NR连接)。相应地，NAS层接收该第十四信令消息。
S8108、NAS层向RRC层发送第十五信令消息，该第十五信令消息用于通知RRC层支持LTE或NR连接通信，开启LTE或NR测量。相应地，RRC层接收第十五信令消息。
S8109、RRC层根据第十五信令消息的指示，关闭LTE或NR连接通信，关闭LTE或NR测量。关于步骤S8107-S8109对应可参考前述图7中S5108-S5110相关内容阐述，这里不再赘述。
S8110、NAS层向网络侧发送第十六信令消息，该第十六信令消息用于通知网络侧支持LTE或NR连接通信。相应地，网络侧接收第十六信令消息。
在实际应用中，该第十六信令消息具体可为第二TAU消息，该第二TAU消息用于通知网络侧当前支持TLE或NR连接的通信功能，即UE和网络侧之间可利用LTE或NR连接相互通信。相应地，网络侧接收第二TAU消息后，可获知网络侧支持LTE或NR连接。进一步网络侧可重配该LTE或NR连接在网络侧所需占用的无线资源，例如重配LTE或NR连接在网络侧通信所需使用的NR PDCP、NR RLC、NR MAC以及NR PHY等传输功能层相关的无线资源等，以重建网络侧的LTE或NR连接。
S8111、网络侧向RRC层发送第十七信令消息，该第十七信令消息用于通知RRC层重建UE侧的LTE或NR连接。相应地，RRC层接收第十七信令消息。
S8112、RRC层根据第十七信令消息的指示，重建UE侧的LTE或NR连接。
在实际应用中，第十七信令消息具体可为RRC重配消息，用于通知RRC层重新配置LTE或NR连接在UE侧所需占用的无线资源，以重配UE侧的LTE或NR连接。关于本申请实施例中未示出或未描述的内容，具体可对应参考前述图7所述实施例中的相关介绍，这里不再赘述。
通过实施本发明实施例，能够在低网速应用场景中通过TAU消息与网络侧协商、交互，关闭LTE-NR双连接中的任一接入网(如LTE或NR接入网)的通信功能，以节省设备功耗，同时也提升网络利用的效率。
基于图1-图9所述实施例中的相关阐述，下面阐述本申请适用的相关产品，例如芯片、收发单元、装置以及设备等。请参见图10，是本发明实施例提供的一种系统芯片的结构示意图。如图10所示的系统芯片1000包括应用处理器1002(application processor，AP)和基带处理器1004(baseband processor，BP)。其中，
应用处理器的全称为多媒体应用处理器(multimedia application processor，MAP)，指在低功耗中央处理器CPU的基础上拓展了音视频功能和专用接口的超大规模集成电路。应用处理器主要分为三类，可以包括全面型处理器、多媒体型处理器和单一媒体型处理器。全面型处理器既要有多媒体应用处理器的功能，同时也能运行复杂的类似linux之类的操作系统，多媒体型处理器指处理媒介超过两种的处理器，例如图像、声音、视频以及3D图形等媒介。单一多媒体型处理器是指处理一种媒介的处理器，通常仅用于处理图像或声音。
基带处理器是系统芯片中的一个重要部件，相当于一个协议处理器，负责数据的处理和存储，主要由数字信号处理器(digital signal processor，DSP)、微控制器(micro controller unit，MCU)和内存(如flash、闪存)等单元组成，其对应主要功能为负责基带编码或译码、声音编码和语音编码等。目前，基带处理器不仅支持多种通信标准(例如GSM、LTE、CDMA等)，还提供多媒体功能以及提供用于多媒体显示器、图像传感器和音频设备相关的通信接口。
在实际应用中，通常应用处理器AP支持运行的软件包括操作系统、用户界面以及应用程序等。基带处理器BP可以视为一个无线调制解调modem模块，负责协调控制BP与基站和AP之间的通信，其支持运行的软件包括基带调制解调baseband modem的通信控制软件等。
应用处理器AP和基带处理器BP之间支持采用预设的接口技术实现相互通信，该接口技术可为系统自定义设置的，例如其包括但不限于串行外围设备接口(serial peripheral interface，SPI)、通用异步接收/发送装置(universal asynchronous receiver/transmitter，UART)、通用串行总线(universal serial bus，USB)、通用输入输出控制线(general purpose input/output，GPIO)等接口技术。具体地，应用处理器和基带处理器之间可通过控制命令以消息的格式实现相互间的通信传输，以完成通话、短消息、移动上网等功能。该控制命令可以包括传统AT(attention)命令、移动宽带接口模式(mobile broadband interface model，MBIM)命令或其他支持AP和BP相互传输的协议命令等。
可选地，如图10所示基带处理器BP支持运行非接入NAS层和无线资源控制RRC层相关的协议软件。在实际应用中，应用处理器AP支持与基带处理器BP中NAS层和RRC层的通信。例如，本申请中应用处理器AP可采用传统AT命令向NAS层发送相应地信令消息，以通知NAS层当前AP所获知的应用状态或设备屏幕状态等信息。
可选地，基带处理器BP中的NAS层支持执行如上图5-图9任一所述方法实施例中以NAS层为执行主体所描述的方法步骤，和/或本文中描述的其他技术内容。基带处理器BP中的RRC 层支持执行执行如上图5-图9任一所述方法实施例中以RRC层为执行主体所描述的方法步骤，和/或本文中描述的其他技术内容。
在实际应用中，系统芯片1000通常指一种高度复杂系统芯片，例如SOC芯片等。在实际部署时，其可部署在设备内部，也可部署在设备外部，通过有线连接或无线连接实现设备的控制。所述设备包括但不限于用户设备UE或终端设备，例如其具体可包括智能手机、移动互联网设备(mobile internet devices，MID)、穿戴式智能设备或其他支持网络通信的设备等。具体地，当系统芯片1000部署在用户设备内部时，系统芯片1000直接用于实现如上图5-图9中任一所述方法实施例中所描述的方法。当系统芯片1000部署在用户设备外部，支持通过有线或无线连接的方式建立系统芯片1000与用户设备之间的通信，则用户设备通过调用或控制系统芯片1000实现如上图5-图9中任一所述方法实施例所描述的方法。
通过实施本发明实施例，能够解决传统技术中低网速场景下采用LTE-NR双连接技术通信存在的设备功耗较大、网络资源浪费等问题。
请参见图11，是本发明实施例提供的一种无线收发单元1100，包括：非接入层NAS实体1102和无线资源控制层RRC实体1104。其中，NAS实体1102用于执行如上图5-图9任一所述方法实施例中以NAS层为执行主体的相关步骤，或文本中描述的技术内容。RRC实体1104用于执行如上图5-图9中任一所述方法实施例中以RRC层为执行主体的相关步骤，或文本中描述的技术内容。示例性地，
所述NAS实体1102用于接收用户设备UE的应用侧发送的第一通知消息后，向所述RRC实体发送NR断开消息，所述第一通知消息用于通知所述UE处于灭屏状态，且所述UE所需接收或发送的数据包的大小小于或等于第一阈值，所述NR断开消息用于指示所述RRC实体释放所述NR连接配置时在所述UE侧所占的无线资源，以断开所述UE侧的NR连接；
所述RRC实体1104用于根据所述NR断开消息的指示，释放所述NR连接配置时在所述UE侧的无线资源，以断开所述UE侧的NR连接。
在一些可能的实施例中，所述RRC实体1104还用于向网络侧发送辅小区群SCG链路失败消息，所述SCG链路失败消息用于指示释放所述NR连接在所述网络侧所占的SCG链路的无线资源，以断开所述网络侧的NR连接；其中，所述UE与所述网络侧分别通过所述SCG链路建立所述NR连接的相互通信。
在一些可能的实施例中，所述RRC实体1104还用于向所述NAS实体发送第二通知消息，所述第二通知消息用于通知所述UE侧的NR连接已断开。
在一些可能的实施例中，所述RRC实体1104还用于向网络侧发送第一跟踪区更新TAU消息，所述第一TAU消息用于通知所述网络侧不支持所述NR连接的通信。
在一些可能的实施例中，所述NAS实体1102还用于接收所述UE的应用侧发送的第三通知消息后，向所述RRC实体发送NR重建消息，所述第三通知消息用于通知所述UE处于亮屏状态，所述NR重建消息用于指示所述RRC实体重配所述NR连接在所述UE侧所需占用的无线资源，以重建所述UE侧的NR连接；
所述RRC实体1104还用于根据所述NR重建消息的指示，重配所述NR连接时在所述UE侧所需占用的无线资源，以重建所述UE侧的NR连接。
在一些可能的实施例中，所述RRC实体1104还用于向所述NAS实体发送第四通知消息，所述第四通知消息用于通知所述UE侧的NR连接已重建。
在一些可能的实施例中，所述RRC实体1104还用于向网络侧发送辅小区群SCG链路成功消息，所述辅小区群SCG链路成功消息用于指示重配所述NR连接在所述网络侧所占的SCG链路的无线资源，以重建所述网络侧的NR连接。
在一些可能的实施例中，所述NAS实体1102还用于向网络侧发送第二跟踪区更新TAU消息，所述第二TAU消息用于通知所述网络侧支持所述NR连接的通信。
请参见图12示出一种可能的用户设备的结构示意图。该用户设备100也可称为网络连接的处理装置，如图12所示的用户设备100可以包括处理器110，外部存储器接口120，内部存储器121，通用串行总线(universal serial bus，USB)接口130，充电管理模块140，电源管理模块141，电池142，天线1，天线2，移动通信模块150，无线通信模块160，音频模块170，扬声器170A，受话器170B，麦克风170C，耳机接口170D，传感器模块180，按键190，马达191，指示器192，摄像头193，显示屏194，以及用户标识模块(subscriber identification module，SIM)卡接口195等。其中传感器模块180可以包括压力传感器180A，陀螺仪传感器180B，气压传感器180C，磁传感器180D，加速度传感器180E，距离传感器180F，接近光传感器180G，指纹传感器180H，温度传感器180J，触摸传感器180K，环境光传感器180L，骨传导传感器180M等。
可以理解的是，本发明实施例示意的结构并不构成对用户设备100的具体限定。在本申请另一些实施例中，用户设备100可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。
处理器110可以包括一个或多个处理单元，例如：处理器110可以包括应用处理器(application processor，AP)，基带处理器也可称为调制解调处理器，图形处理器(graphics processing unit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，存储器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的器件，也可以集成在一个或多个处理器中。
其中，控制器可以是用户设备100的神经中枢和指挥中心。控制器可以根据指令操作码和时序信号，产生操作控制信号，完成取指令和执行指令的控制。
处理器110中还可以设置存储器，用于存储指令和数据。在一些实施例中，处理器110中的存储器为高速缓冲存储器。该存储器可以保存处理器110刚用过或循环使用的指令或数据。如果处理器110需要再次使用该指令或数据，可从所述存储器中直接调用。避免了重复存取，减少了处理器110的等待时间，因而提高了系统的效率。
在一些实施例中，处理器110可以包括一个或多个接口。接口可以包括集成电路(inter-integrated circuit，I2C)接口，集成电路内置音频(inter-integrated circuit sound，I2S)接口，脉冲编码调制(pulse code modulation，PCM)接口，通用异步收发传输器(universal asynchronous receiver/transmitter，UART)接口，移动产业处理器接口(mobile industry processor interface，MIPI)，通用输入输出(general-purpose input/output，GPIO)接口，用户标识模块(subscriber identity module，SIM)接口，和/或通用串行总线(universal serial bus，USB)接口等。
I2C接口是一种双向同步串行总线，包括一根串行数据线(serial data line，SDA)和一根串行时钟线(derail clock line，SCL)。在一些实施例中，处理器110可以包含多组I2C总线。处 理器110可以通过不同的I2C总线接口分别耦合触摸传感器180K，充电器，闪光灯，摄像头193等。例如：处理器110可以通过I2C接口耦合触摸传感器180K，使处理器110与触摸传感器180K通过I2C总线接口通信，实现用户设备100的触摸功能。
I2S接口可以用于音频通信。在一些实施例中，处理器110可以包含多组I2S总线。处理器110可以通过I2S总线与音频模块170耦合，实现处理器110与音频模块170之间的通信。在一些实施例中，音频模块170可以通过I2S接口向无线通信模块160传递音频信号，实现通过蓝牙耳机接听电话的功能。
PCM接口也可以用于音频通信，将模拟信号抽样，量化和编码。在一些实施例中，音频模块170与无线通信模块160可以通过PCM总线接口耦合。在一些实施例中，音频模块170也可以通过PCM接口向无线通信模块160传递音频信号，实现通过蓝牙耳机接听电话的功能。所述I2S接口和所述PCM接口都可以用于音频通信。
UART接口是一种通用串行数据总线，用于异步通信。该总线可以为双向通信总线。它将要传输的数据在串行通信与并行通信之间转换。在一些实施例中，UART接口通常被用于连接处理器110与无线通信模块160。例如：处理器110通过UART接口与无线通信模块160中的蓝牙模块通信，实现蓝牙功能。在一些实施例中，音频模块170可以通过UART接口向无线通信模块160传递音频信号，实现通过蓝牙耳机播放音乐的功能。
MIPI接口可以被用于连接处理器110与显示屏194，摄像头193等外围器件。MIPI接口包括摄像头串行接口(camera serial interface，CSI)，显示屏串行接口(display serial interface，DSI)等。在一些实施例中，处理器110和摄像头193通过CSI接口通信，实现用户设备100的拍摄功能。处理器110和显示屏194通过DSI接口通信，实现用户设备100的显示功能。
GPIO接口可以通过软件配置。GPIO接口可以被配置为控制信号，也可被配置为数据信号。在一些实施例中，GPIO接口可以用于连接处理器110与摄像头193，显示屏194，无线通信模块160，音频模块170，传感器模块180等。GPIO接口还可以被配置为I2C接口，I2S接口，UART接口，MIPI接口等。
USB接口130是符合USB标准规范的接口，具体可以是Mini USB接口，Micro USB接口，USB Type C接口等。USB接口130可以用于连接充电器为用户设备100充电，也可以用于用户设备100与外围设备之间传输数据。也可以用于连接耳机，通过耳机播放音频。该接口还可以用于连接其他电子设备，例如AR设备等。
可以理解的是，本发明实施例示意的各模块间的接口连接关系，只是示意性说明，并不构成对用户设备100的结构限定。在本申请另一些实施例中，用户设备100也可以采用上述实施例中不同的接口连接方式，或多种接口连接方式的组合。
充电管理模块140用于从充电器接收充电输入。其中，充电器可以是无线充电器，也可以是有线充电器。在一些有线充电的实施例中，充电管理模块140可以通过USB接口130接收有线充电器的充电输入。在一些无线充电的实施例中，充电管理模块140可以通过用户设备100的无线充电线圈接收无线充电输入。充电管理模块140为电池142充电的同时，还可以通过电源管理模块141为电子设备供电。
电源管理模块141用于连接电池142，充电管理模块140与处理器110。电源管理模块141接收电池142和/或充电管理模块140的输入，为处理器110，内部存储器121，外部存储器，显示屏194，摄像头193，和无线通信模块160等供电。电源管理模块141还可以用于监测电池容量，电池循环次数，电池健康状态(漏电，阻抗)等参数。在其他一些实施例中，电 源管理模块141也可以设置于处理器110中。在另一些实施例中，电源管理模块141和充电管理模块140也可以设置于同一个器件中。
用户设备100的无线通信功能可以通过天线1，天线2，移动通信模块150，无线通信模块160，调制解调处理器以及基带处理器等实现。
天线1和天线2用于发射和接收电磁波信号。用户设备100中的每个天线可用于覆盖单个或多个通信频带。不同的天线还可以复用，以提高天线的利用率。例如：可以将天线1复用为无线局域网的分集天线。在另外一些实施例中，天线可以和调谐开关结合使用。
移动通信模块150可以提供应用在用户设备100上的包括2G/3G/4G/5G等无线通信的解决方案。移动通信模块150可以包括至少一个滤波器，开关，功率放大器，低噪声放大器(low noise amplifier，LNA)等。移动通信模块150可以由天线1接收电磁波，并对接收的电磁波进行滤波，放大等处理，传送至调制解调处理器进行解调。移动通信模块150还可以对经调制解调处理器调制后的信号放大，经天线1转为电磁波辐射出去。在一些实施例中，移动通信模块150的至少部分功能模块可以被设置于处理器110中。在一些实施例中，移动通信模块150的至少部分功能模块可以与处理器110的至少部分模块被设置在同一个器件中。
调制解调处理器可以包括调制器和解调器。其中，调制器用于将待发送的低频基带信号调制成中高频信号。解调器用于将接收的电磁波信号解调为低频基带信号。随后解调器将解调得到的低频基带信号传送至基带处理器处理。低频基带信号经基带处理器处理后，被传递给应用处理器。应用处理器通过音频设备(不限于扬声器170A，受话器170B等)输出声音信号，或通过显示屏194显示图像或视频。在一些实施例中，调制解调处理器可以是独立的器件。在另一些实施例中，调制解调处理器可以独立于处理器110，与移动通信模块150或其他功能模块设置在同一个器件中。
无线通信模块160可以提供应用在用户设备100上的包括无线局域网(wireless local area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，蓝牙(bluetooth，BT)，全球导航卫星系统(global navigation satellite system，GNSS)，调频(frequency modulation，FM)，近距离无线通信技术(near field communication，NFC)，红外技术(infrared，IR)等无线通信的解决方案。无线通信模块160可以是集成至少一个通信处理模块的一个或多个器件。无线通信模块160经由天线2接收电磁波，将电磁波信号调频以及滤波处理，将处理后的信号发送到处理器110。无线通信模块160还可以从处理器110接收待发送的信号，对其进行调频，放大，经天线2转为电磁波辐射出去。
在一些实施例中，用户设备100的天线1和移动通信模块150耦合，天线2和无线通信模块160耦合，使得用户设备100可以通过无线通信技术与网络以及其他设备通信。所述无线通信技术可包括LTE-NR双连接技术，LTE单连接技术、NR单连接技术等等，例如其具体可以包括全球移动通讯系统(global system for mobile communications，GSM)，通用分组无线服务(general packet radio service，GPRS)，码分多址接入(code division multiple access，CDMA)，宽带码分多址(wideband code division multiple access，WCDMA)，时分码分多址(time-division code division multiple access，TD-SCDMA)，长期演进(long term evolution，LTE)，BT，GNSS，WLAN，NFC，FM，和/或IR技术等。所述GNSS可以包括全球卫星定位系统(global positioning system，GPS)，全球导航卫星系统(global navigation satellite system，GLONASS)，北斗卫星导航系统(beidou navigation satellite system，BDS)，准天顶卫星系统(quasi-zenith satellite system，QZSS)和/或星基增强系统(satellite based augmentation systems，SBAS)。
用户设备100通过GPU，显示屏194，以及应用处理器等实现显示功能。GPU为图像处理的微处理器，连接显示屏194和应用处理器。GPU用于执行数学和几何计算，用于图形渲染。处理器110可包括一个或多个GPU，其执行程序指令以生成或改变显示信息。
显示屏194用于显示图像，视频等。显示屏194包括显示面板。显示面板可以采用液晶显示屏(liquid crystal display，LCD)，有机发光二极管(organic light-emitting diode，OLED)，有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light emitting diode的，AMOLED)，柔性发光二极管(flex light-emitting diode，FLED)，Miniled，MicroLed，Micro-oLed，量子点发光二极管(quantum dot light emitting diodes，QLED)等。在一些实施例中，用户设备100可以包括1个或N个显示屏194，N为大于1的正整数。
用户设备100可以通过ISP，摄像头193，视频编解码器，GPU，显示屏194以及应用处理器等实现拍摄功能。
ISP用于处理摄像头193反馈的数据。例如，拍照时，打开快门，光线通过镜头被传递到摄像头感光元件上，光信号转换为电信号，摄像头感光元件将所述电信号传递给ISP处理，转化为肉眼可见的图像。ISP还可以对图像的噪点，亮度，肤色进行算法优化。ISP还可以对拍摄场景的曝光，色温等参数优化。在一些实施例中，ISP可以设置在摄像头193中。
摄像头193用于捕获静态图像或视频。物体通过镜头生成光学图像投射到感光元件。感光元件可以是电荷耦合器件(charge coupled device，CCD)或互补金属氧化物半导体(complementary metal-oxide-semiconductor，CMOS)光电晶体管。感光元件把光信号转换成电信号，之后将电信号传递给ISP转换成数字图像信号。ISP将数字图像信号输出到DSP加工处理。DSP将数字图像信号转换成标准的RGB，YUV等格式的图像信号。在一些实施例中，用户设备100可以包括1个或N个摄像头193，N为大于1的正整数。
数字信号处理器用于处理数字信号，除了可以处理数字图像信号，还可以处理其他数字信号。例如，当用户设备100在频点选择时，数字信号处理器用于对频点能量进行傅里叶变换等。
视频编解码器用于对数字视频压缩或解压缩。用户设备100可以支持一种或多种视频编解码器。这样，用户设备100可以播放或录制多种编码格式的视频，例如：动态图像专家组(moving picture experts group，MPEG)1，MPEG2，MPEG3，MPEG4等。
NPU为神经网络(neural-network，NN)计算处理器，通过借鉴生物神经网络结构，例如借鉴人脑神经元之间传递模式，对输入信息快速处理，还可以不断的自学习。通过NPU可以实现用户设备100的智能认知等应用，例如：图像识别，人脸识别，语音识别，文本理解等。
外部存储器接口120可以用于连接外部存储卡，例如Micro SD卡，实现扩展用户设备100的存储能力。外部存储卡通过外部存储器接口120与处理器110通信，实现数据存储功能。例如将音乐，视频等文件保存在外部存储卡中。
内部存储器121可以用于存储计算机可执行程序代码，所述可执行程序代码包括指令。处理器110通过运行存储在内部存储器121的指令，从而执行用户设备100的各种功能应用以及数据处理。内部存储器121可以包括存储程序区和存储数据区。其中，存储程序区可存储操作系统，至少一个功能所需的应用程序(比如声音播放功能，图像播放功能等)等。存储数据区可存储用户设备100使用过程中所创建的数据(比如音频数据，电话本等)等。此外，内部存储器121可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件，闪存器件，通用闪存存储器(universal flash storage，UFS)等。
用户设备100可以通过音频模块170，扬声器170A，受话器170B，麦克风170C，耳机接口170D，以及应用处理器等实现音频功能。例如音乐播放，录音等。
音频模块170用于将数字音频信息转换成模拟音频信号输出，也用于将模拟音频输入转换为数字音频信号。音频模块170还可以用于对音频信号编码和解码。在一些实施例中，音频模块170可以设置于处理器110中，或将音频模块170的部分功能模块设置于处理器110中。
扬声器170A，也称“喇叭”，用于将音频电信号转换为声音信号。用户设备100可以通过扬声器170A收听音乐，或收听免提通话。
受话器170B，也称“听筒”，用于将音频电信号转换成声音信号。当用户设备100接听电话或语音信息时，可以通过将受话器170B靠近人耳接听语音。
麦克风170C，也称“话筒”，“传声器”，用于将声音信号转换为电信号。当拨打电话或发送语音信息时，用户可以通过人嘴靠近麦克风170C发声，将声音信号输入到麦克风170C。用户设备100可以设置至少一个麦克风170C。在另一些实施例中，用户设备100可以设置两个麦克风170C，除了采集声音信号，还可以实现降噪功能。在另一些实施例中，用户设备100还可以设置三个，四个或更多麦克风170C，实现采集声音信号，降噪，还可以识别声音来源，实现定向录音功能等。
耳机接口170D用于连接有线耳机。耳机接口170D可以是USB接口130，也可以是3.5mm的开放移动电子设备平台(open mobile terminal platform，OMTP)标准接口，美国蜂窝电信工业协会(cellular telecommunications industry association of the USA，CTIA)标准接口。
压力传感器180A用于感受压力信号，可以将压力信号转换成电信号。在一些实施例中，压力传感器180A可以设置于显示屏194。压力传感器180A的种类很多，如电阻式压力传感器，电感式压力传感器，电容式压力传感器等。电容式压力传感器可以是包括至少两个具有导电材料的平行板。当有力作用于压力传感器180A，电极之间的电容改变。用户设备100根据电容的变化确定压力的强度。当有触摸操作作用于显示屏194，用户设备100根据压力传感器180A检测所述触摸操作强度。用户设备100也可以根据压力传感器180A的检测信号计算触摸的位置。在一些实施例中，作用于相同触摸位置，但不同触摸操作强度的触摸操作，可以对应不同的操作指令。例如：当有触摸操作强度小于第一压力阈值的触摸操作作用于短消息应用图标时，执行查看短消息的指令。当有触摸操作强度大于或等于第一压力阈值的触摸操作作用于短消息应用图标时，执行新建短消息的指令。
陀螺仪传感器180B可以用于确定用户设备100的运动姿态。在一些实施例中，可以通过陀螺仪传感器180B确定用户设备100围绕三个轴(即，x，y和z轴)的角速度。陀螺仪传感器180B可以用于拍摄防抖。示例性的，当按下快门，陀螺仪传感器180B检测用户设备100抖动的角度，根据角度计算出镜头模组需要补偿的距离，让镜头通过反向运动抵消用户设备100的抖动，实现防抖。陀螺仪传感器180B还可以用于导航，体感游戏场景。
气压传感器180C用于测量气压。在一些实施例中，用户设备100通过气压传感器180C测得的气压值计算海拔高度，辅助定位和导航。
磁传感器180D包括霍尔传感器。用户设备100可以利用磁传感器180D检测翻盖皮套的开合。在一些实施例中，当用户设备100是翻盖机时，用户设备100可以根据磁传感器180D检测翻盖的开合。进而根据检测到的皮套的开合状态或翻盖的开合状态，设置翻盖自动解锁等特性。
加速度传感器180E可检测用户设备100在各个方向上(一般为三轴)加速度的大小。当用户设备100静止时可检测出重力的大小及方向。还可以用于识别电子设备姿态，应用于横竖屏切换，计步器等应用。
距离传感器180F，用于测量距离。用户设备100可以通过红外或激光测量距离。在一些实施例中，拍摄场景，用户设备100可以利用距离传感器180F测距以实现快速对焦。
接近光传感器180G可以包括例如发光二极管(LED)和光检测器，例如光电二极管。发光二极管可以是红外发光二极管。用户设备100通过发光二极管向外发射红外光。用户设备100使用光电二极管检测来自附近物体的红外反射光。当检测到充分的反射光时，可以确定用户设备100附近有物体。当检测到不充分的反射光时，用户设备100可以确定用户设备100附近没有物体。用户设备100可以利用接近光传感器180G检测用户手持用户设备100贴近耳朵通话，以便自动熄灭屏幕达到省电的目的。接近光传感器180G也可用于皮套模式，口袋模式自动解锁与锁屏。
环境光传感器180L用于感知环境光亮度。用户设备100可以根据感知的环境光亮度自适应调节显示屏194亮度。环境光传感器180L也可用于拍照时自动调节白平衡。环境光传感器180L还可以与接近光传感器180G配合，检测用户设备100是否在口袋里，以防误触。
指纹传感器180H用于采集指纹。用户设备100可以利用采集的指纹特性实现指纹解锁，访问应用锁，指纹拍照，指纹接听来电等。
温度传感器180J用于检测温度。在一些实施例中，用户设备100利用温度传感器180J检测的温度，执行温度处理策略。例如，当温度传感器180J上报的温度超过阈值，用户设备100执行降低位于温度传感器180J附近的处理器的性能，以便降低功耗实施热保护。在另一些实施例中，当温度低于另一阈值时，用户设备100对电池142加热，以避免低温导致用户设备100异常关机。在其他一些实施例中，当温度低于又一阈值时，用户设备100对电池142的输出电压执行升压，以避免低温导致的异常关机。
触摸传感器180K，也称“触控面板”。触摸传感器180K可以设置于显示屏194，由触摸传感器180K与显示屏194组成触摸屏，也称“触控屏”。触摸传感器180K用于检测作用于其上或附近的触摸操作。触摸传感器可以将检测到的触摸操作传递给应用处理器，以确定触摸事件类型。可以通过显示屏194提供与触摸操作相关的视觉输出。在另一些实施例中，触摸传感器180K也可以设置于用户设备100的表面，与显示屏194所处的位置不同。
骨传导传感器180M可以获取振动信号。在一些实施例中，骨传导传感器180M可以获取人体声部振动骨块的振动信号。骨传导传感器180M也可以接触人体脉搏，接收血压跳动信号。在一些实施例中，骨传导传感器180M也可以设置于耳机中，结合成骨传导耳机。音频模块170可以基于所述骨传导传感器180M获取的声部振动骨块的振动信号，解析出语音信号，实现语音功能。应用处理器可以基于所述骨传导传感器180M获取的血压跳动信号解析心率信息，实现心率检测功能。
按键190包括开机键，音量键等。按键190可以是机械按键。也可以是触摸式按键。用户设备100可以接收按键输入，产生与用户设备100的用户设置以及功能控制有关的键信号输入。
马达191可以产生振动提示。马达191可以用于来电振动提示，也可以用于触摸振动反馈。例如，作用于不同应用(例如拍照，音频播放等)的触摸操作，可以对应不同的振动反馈效果。作用于显示屏194不同区域的触摸操作，马达191也可对应不同的振动反馈效果。不 同的应用场景(例如：时间提醒，接收信息，闹钟，游戏等)也可以对应不同的振动反馈效果。触摸振动反馈效果还可以支持自定义。
指示器192可以是指示灯，可以用于指示充电状态，电量变化，也可以用于指示消息，未接来电，通知等。
SIM卡接口195用于连接SIM卡。SIM卡可以通过插入SIM卡接口195，或从SIM卡接口195拔出，实现和用户设备100的接触和分离。用户设备100可以支持1个或N个SIM卡接口，N为大于1的正整数。SIM卡接口195可以支持Nano SIM卡，Micro SIM卡，SIM卡等。同一个SIM卡接口195可以同时插入多张卡。所述多张卡的类型可以相同，也可以不同。SIM卡接口195也可以兼容不同类型的SIM卡。SIM卡接口195也可以兼容外部存储卡。用户设备100通过SIM卡和网络交互，实现通话以及数据通信等功能。在一些实施例中，用户设备100采用eSIM，即：嵌入式SIM卡。eSIM卡可以嵌在用户设备100中，不能和用户设备100分离。
本发明实施例还提供一种芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有指令；所述指令被所述处理器执行时，图5-图9任一所述方法实施例的流程可得以实现。
本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在处理器上运行时，图5-图9任一所述方法实施例的流程可得以实现。
本发明实施例还提供一种计算机程序产品，当所述计算机程序产品在处理器上运行时，图5-图9任一所述方法实施例的流程可得以实现。
结合本发明实施例公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(英文：Random Access Memory，RAM)、闪存、只读存储器(英文：Read Only Memory，ROM)、可擦除可编程只读存储器(英文：Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(英文：Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于计算设备中。当然，处理器和存储介质也可以作为分立组件存在于计算设备中。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (29)

  1. 一种网络连接的处理方法，应用于用户设备UE侧，其特征在于，
    所述UE通过无线接入网LTE-NR双连接技术分别连接至4G基站和5G基站；
    当所述UE处于灭屏状态，且所述UE的数据传输速率小于或等于预设速率时，释放所述UE与所述5G基站的连接。
  2. 根据权利要求1所述的方法，其特征在于，所述UE包括无线资源控制RRC层，所述释放所述UE与所述5G基站的连接包括：
    所述RRC层接收所述5G基站发送的第一RRC重配消息，所述第一RRC重配消息用于指示所述RRC层释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接；
    所述RRC层根据所述第一RRC重配消息的指示，释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接。
  3. 根据权利要求2所述的方法，其特征在于，所述UE还包括非接入NAS层，所述RRC层接收所述5G基站发送的第一RRC重配消息之前，所述方法还包括：
    所述NAS层接收所述UE的应用处理器AP发送的第一通知消息后，向所述UE的RRC层发送第二通知消息，所述第一通知消息用于通知所述UE处于灭屏状态，其所述UE的数据传输速率小于或等于预设速率，所述第二通知消息用于通知所述RRC层关闭针对所述UE和所述5G基站的连接的测量；
    所述RRC层响应所述第二通知消息，关闭针对所述UE和所述5G基站的连接的测量。
  4. 根据权利要求3所述的方法，其特征在于，所述释放所述UE与所述5G基站的连接还包括：
    所述RRC层向所述5G基站发送SCG链路失败消息，所述SCG链路失败消息用于指示释放所述UE与所述5G基站连接配置时在所述5G基站侧所占的无线资源，以在所述5G基站侧释放所述UE与所述5G基站的连接。
  5. 根据权利要求3所述的方法，其特征在于，所述释放所述UE与所述5G基站的连接还包括：
    所述NAS层向所述5G基站发送第一跟踪区更新TAU消息，所述第一TAU消息用于通知所述5G基站不支持所述UE和所述5G基站的连接，以在所述5G基站侧释放所述UE和所述5G基站的连接。
  6. 根据权利要求2-5中任一项所述的方法，其特征在于，所述UE包括非接入NAS层，所述RRC层在所述UE侧释放所述UE与所述5G基站的连接之后，还包括：
    所述RRC层向所述NAS层发送第三通知消息，所述第三通知消息用于通知已在所述UE侧释放所述UE和所述5G基站的连接。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，所述方法还包括：
    当所述UE处于亮屏状态，重建所述UE和所述5G基站的连接。
  8. 根据权利要求7所述的方法，其特征在于，所述UE包括无线资源控制RRC层，所述重建所述UE和所述5G基站的连接包括：
    所述RRC层接收所述5G基站发送的第二RRC重配消息，所述第二RRC重配消息用于指示所述RRC层重配所述UE与所述5G基站连接时在所述UE侧所需占用的无线资源，以在所述UE侧重建所述UE与所述5G基站的连接；
    所述RRC层根据所述第二RRC重配消息的指示，重配所述UE与所述5G基站连接时在所述UE侧所需占用的无线资源，以在所述UE侧重建所述UE与所述5G基站的连接。
  9. 根据权利要求8所述的方法，其特征在于，所述UE还包括非接入NAS层，所述RRC层接收所述5G基站发送的第二RRC重配消息之前，所述方法还包括：
    所述NAS层接收所述UE的应用处理器AP发送的第四通知消息后，向所述UE的RRC层发送第五通知消息，所述第四通知消息用于通知所述UE处于亮屏状态，其所述UE的数据传输速率小于或等于预设速率，所述第五通知消息用于通知所述RRC层开启针对所述UE和所述5G基站的连接的测量；
    所述RRC响应所述第五通知消息，开启针对所述UE和所述5G基站的连接的测量。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    所述RRC向所述5G基站发送第六通知消息，所述第六通知消息用于通知重配所述UE与所述5G基站连接时在所述5G基站侧所需占用的无线资源，以在所述5G基站侧重建所述UE与所述5G基站的连接。
  11. 根据权利要求9所述的方法，其特征在于，所述释放所述UE与所述5G基站的连接还包括：
    所述NAS层向所述5G基站发送第二跟踪区更新TAU消息，所述第二TAU消息用于通知所述5G基站支持所述UE和所述5G基站的连接，以在所述5G基站侧重建所述UE和所述5G基站的连接。
  12. 一种用户设备，其特征在于，包括存储器及与所述存储器耦合的至少一个处理器；所述存储器用于存储指令，所述至少一个处理器用于执行所述指令；其中，所述至少一个处理器执行所述指令时使得所述用户设备UE执行如下动作：
    通过无线接入网LTE-NR双连接技术分别连接至4G基站和5G基站；
    当所述UE处于灭屏状态，且所述UE的数据传输速率小于或等于预设速率时，释放所述UE与所述5G基站的连接。
  13. 根据权利要求12所述的设备，其特征在于，所述UE包括无线资源控制RRC层，所述释放所述UE与所述5G基站的连接包括：
    所述RRC层接收所述5G基站发送的第一RRC重配消息，所述第一RRC重配消息用于指示所述RRC层释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接；
    所述RRC层根据所述第一RRC重配消息的指示，释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接。
  14. 根据权利要求13所述的设备，其特征在于，所述释放所述UE与所述5G基站的连接还包括：
    所述RRC层向所述5G基站发送SCG链路失败消息，所述SCG链路失败消息用于指示释放所述UE与所述5G基站连接配置时在所述5G基站侧所占的无线资源，以在所述5G基站侧释放所述UE与所述5G基站的连接。
  15. 根据权利要求13所述的设备，其特征在于，所述UE还包括非接入NAS层，所述释放所述UE与所述5G基站的连接还包括：
    所述NAS层向所述5G基站发送第一跟踪区更新TAU消息，所述第一TAU消息用于通知所述5G基站不支持所述UE和所述5G基站的连接，以在所述5G基站侧释放所述UE和所述5G基站的连接。
  16. 根据权利要求13-15中任一项所述的设备，其特征在于，所述用户设备还执行如下动作：
    当所述UE处于亮屏状态，重建所述UE和所述5G基站的连接。
  17. 根据权利要求16所述的设备，其特征在于，所述UE包括无线资源控制RRC层，所述重建所述UE和所述5G基站的连接包括：
    所述RRC层接收所述5G基站发送的第二RRC重配消息，所述第二RRC重配消息用于指示所述RRC层重配所述UE与所述5G基站连接时在所述UE侧所需占用的无线资源，以在所述UE侧重建所述UE与所述5G基站的连接；
    所述RRC层根据所述第二RRC重配消息的指示，重配所述UE与所述5G基站连接时在所述UE侧所需占用的无线资源，以在所述UE侧重建所述UE与所述5G基站的连接。
  18. 根据权利要求17所述的设备，其特征在于，所述用户设备还执行如下动作：
    所述RRC向所述5G基站发送第六通知消息，所述第六通知消息用于通知重配所述UE与所述5G基站连接时在所述5G基站侧所需占用的无线资源，以在所述5G基站侧重建所述UE与所述5G基站的连接。
  19. 根据权利要求17所述的设备，其特征在于，所述UE还包括非接入NAS层，所述释放所述UE与所述5G基站的连接还包括：
    所述NAS层向所述5G基站发送第二跟踪区更新TAU消息，所述第二TAU消息用于通知所述5G基站支持所述UE和所述5G基站的连接，以在所述5G基站侧重建所述UE和所述5G基站的连接。
  20. 一种系统芯片，其特征在于，包括应用处理器和基带处理器，其中，
    所述基带处理器，用于通过无线接入网LTE-NR双连接技术将用户设备UE分别连接至4G基站和5G基站；
    所述应用处理器，用于确定UE处于灭屏状态，且所述UE的数据传输速率小于或等于预设速率；
    所述基带处理器，还用于在所述应用处理器确定到所述UE处于灭屏状态，且所述UE的数据传输速率小于或等于预设速率时，释放所述UE与所述5G基站的连接。
  21. 根据权利要求20所述的芯片，其特征在于，所述基带处理器包括无线资源控制RRC层，所述基带处理器用于释放所述UE与所述5G基站的连接包括：
    所述RRC层具体用于：
    接收所述5G基站发送的第一RRC重配消息，所述第一RRC重配消息用于指示所述RRC层释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接；
    根据所述第一RRC重配消息的指示，释放所述UE与所述5G基站连接配置时在所述UE侧所占的无线资源，以在所述UE侧释放所述UE与所述5G基站的连接。
  22. 根据权利要求21所述的芯片，其特征在于，所述基带处理器还包括非接入NAS层，所述RRC层用于接收所述5G基站发送的第一RRC重配消息之前，
    所述NAS层，还用于接收所述应用处理器AP发送的第一通知消息后，向所述UE的RRC层发送第二通知消息，所述第一通知消息用于通知所述UE处于灭屏状态，其所述UE的数据传输速率小于或等于预设速率，所述第二通知消息用于通知所述RRC层关闭针对所述UE和所述5G基站的连接的测量；
    所述RRC层，还用于响应所述第二通知消息，关闭针对所述UE和所述5G基站的连接的测量。
  23. 根据权利要求22所述的芯片，其特征在于，所述基带处理器用于释放所述UE与所述5G基站的连接还包括：
    所述RRC层还用于向所述5G基站发送SCG链路失败消息，所述SCG链路失败消息用于指示释放所述UE与所述5G基站连接配置时在所述5G基站侧所占的无线资源，以在所述5G基站侧释放所述UE与所述5G基站的连接。
  24. 根据权利要求22所述的芯片，其特征在于，所述基带处理器用于释放所述UE与所述5G基站的连接还包括：
    所述NAS层还用于向所述5G基站发送第一跟踪区更新TAU消息，所述第一TAU消息用于通知所述5G基站不支持所述UE和所述5G基站的连接，以在所述5G基站侧释放所述UE和所述5G基站的连接。
  25. 根据权利要求20-24中任一项所述的芯片，其特征在于，
    所述应用处理器，还用于确定所述UE处于亮屏状态；
    所述基带处理器，还用于在所述应用处理器确定所述UE处于亮屏状态时，重建所述UE和所述5G基站的连接。
  26. 根据权利要求25所述的芯片，其特征在于，所述基带处理器包括无线资源控制RRC层，所述基带处理器用于重建所述UE和所述5G基站的连接包括：
    所述RRC层具体用于：
    接收所述5G基站发送的第二RRC重配消息，所述第二RRC重配消息用于指示所述RRC层重配所述UE与所述5G基站连接时在所述UE侧所需占用的无线资源，以在所述UE侧重建所述UE与所述5G基站的连接；
    根据所述第二RRC重配消息的指示，重配所述UE与所述5G基站连接时在所述UE侧所需占用的无线资源，以在所述UE侧重建所述UE与所述5G基站的连接。
  27. 根据权利要求26所述的芯片，其特征在于，所述基带处理器还包括非接入NAS层，所述RRC层用于接收所述5G基站发送的第二RRC重配消息之前，
    所述NAS层，还用于接收所述应用处理器AP发送的第四通知消息后，向所述UE的RRC层发送第五通知消息，所述第四通知消息用于通知所述UE处于亮屏状态，其所 述UE的数据传输速率小于或等于预设速率，所述第五通知消息用于通知所述RRC层开启针对所述UE和所述5G基站的连接的测量；
    所述RRC层，还用于响应所述第五通知消息，开启针对所述UE和所述5G基站的连接的测量。
  28. 根据权利要求27所述的芯片，其特征在于，
    所述RRC，还用于向所述5G基站发送第六通知消息，所述第六通知消息用于通知重配所述UE与所述5G基站连接时在所述5G基站侧所需占用的无线资源，以在所述5G基站侧重建所述UE与所述5G基站的连接。
  29. 根据权利要求27所述的芯片，其特征在于，所述基带处理器用于释放所述UE与所述5G基站的连接还包括：
    所述NAS，还用于向所述5G基站发送第二跟踪区更新TAU消息，所述第二TAU消息用于通知所述5G基站支持所述UE和所述5G基站的连接，以在所述5G基站侧重建所述UE和所述5G基站的连接。
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