A network connection method, system and related device

Abstract

The present application discloses a network connection method, system and related devices. An electronic device exchanges data with a network side device via a long-term evolution LTE link. When the electronic device meets a first preset condition, the electronic device actively sends a first UE auxiliary information to the network side device. Among them, the first user equipment UE auxiliary information includes a first field, and the number of uplink auxiliary carriers of the sub-element reducedCCsUL carried in the first field is a first value or the first field does not carry any sub-element, and the first value is greater than 0. The network side device establishes a new air interface NR link with the electronic device in response to the first UE auxiliary information. The electronic device exchanges data with the network side device simultaneously through the LTE link and the NR link. The network side can be quickly triggered to add an NR link to quickly restore the LTE‑NR dual connection and increase the data transmission rate.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a network connection method, system and related devices. Background Art

[0002] LTE introduced the concept of dual connectivity in the R12 standard, which means that the user equipment (UE) can use two independent physical resources of base stations for transmission at the same time in the radio resource control (RRC) connection state. LTE dual connectivity technology expands the application of carrier aggregation, which can effectively increase network capacity and improve network switching power and other capabilities.

[0003] In the early stage of the deployment of the new radio (NR) network of the fifth generation mobile communication network (5G), non-standalone networking will be the networking method chosen by most operators around the world.

[0004] The NSA networking mode is also called 4G-5G wireless access dual connection (EUTRN-NR dual connectivity, EN-DC), which mainly involves the 4G E-UTRAN access network (also known as the LTE access network) and the 5G new random access technology (NR) access network (referred to as the NR access network). This allows the 5G network to use the existing 4G LTE coverage when deployed, avoiding the waste of network resources.

[0005] In the EN-DC networking mode, the UE can be connected to the 4G base station (which can be called eNB) and the 5G base station (which can be called En-gNB) at the same time, and obtain high-speed, low-latency wireless transmission services under the close interoperation of 4G and 5G. Compared with the single access network working mode (for example, only using 4G LTE technology to communicate), the dual access network working mode of electronic equipment (for example, using 4G LTE technology and 5G technology to communicate at the same time) will cause the UE to consume more power. And for some scenarios with low network demand, the LTE access network can guarantee the networking needs of electronic devices. For electronic devices such as smartphones, they often switch between scenarios with high network speed requirements and scenarios with low network speed requirements. If the LTE-NR dual connection technology is still used, it will undoubtedly cause a waste of network resources and increase the power consumption of electronic equipment. Summary of the invention

[0006] The present application provides a network connection method and related devices, which can instruct the network side to quickly establish an NR link connection or release an NR link connection through an overheating protection field or a maximum secondary carrier (maxCC) field in UE auxiliary information.

[0007] In the first aspect, the present application provides a network connection system, including: an electronic device and a network side device; wherein the electronic device is used to interact with the network side device through a long term evolution LTE link for data; the electronic device is also used to actively send first UE auxiliary information to the network side device when the electronic device meets a first preset condition; wherein the first user equipment UE auxiliary information includes a first field, and the number of sub-information elements uplink auxiliary carriers reducedCCsUL carried in the first field is a first value or the first field does not carry any sub-information elements, and the first value is greater than 0; the network side device is used to establish a new air interface NR link with the electronic device in response to the first UE auxiliary information; the electronic device is also used to interact with the network side device through an LTE link and an NR link at the same time.

[0008] Through a network connection system provided by the present application, an electronic device can trigger the network side to quickly establish an NR link connection or release the NR link connection with the electronic device by sending UE auxiliary information to the network side. Specifically, the overheating protection field or the maximum auxiliary carrier (maxCC) and other fields in the UE auxiliary information can be used to instruct the network side to establish an NR link connection or release the NR link connection. In this way, when the electronic device needs to release the NR connection in the case of LTE-NR dual connection, it quickly triggers the network side to release the NR SCG to reduce power consumption. When the electronic device needs to establish an LTE-NR dual connection in the case of a single LTE connection, the electronic device can quickly trigger the network side to add an NR SCG to quickly restore the LTE-NR dual connection and increase the data transmission rate.

[0009] Among them, 1. When the protocol version of the first UE auxiliary information can be the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, the first field is the overheating protection overheating field. 2. When the protocol type of the first UE auxiliary information can be the 3GPP technical protocol specification R16 version, the first field is the maximum number of auxiliary carriers maxCC field.

[0010] In one possible implementation, the network side device is also used to activate N uplink auxiliary carriers of the electronic device in response to the first UE auxiliary information, where N is a first value; the electronic device is specifically used to simultaneously send data to the network side device through the uplink main carrier on the LTE link and the N uplink auxiliary carriers on the NR link.

[0011] In one possible implementation, the electronic device is further used to: before interacting data with the network side through the LTE link, interact data with the network side device through the LTE link and the NR link at the same time; when the electronic device meets the second preset condition, actively send the secondary cell group failure SCG failure signaling to the network side device; the network side device is further used to release the NR link with the electronic device in response to the SCG failure signaling; the electronic device is also used to turn off NR measurement after releasing the NR link.

[0012] In this way, when the electronic device has established an LTE-NR dual connection, if the electronic device detects that the NR link needs to be released, the electronic device can trigger the network side to release the NR link by reporting the SCG failure signaling to the network side. When the NR link has been disconnected and a single connection with the LTE access network device is established, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-zero or the overheating field does not carry any sub-information elements. In this way, the electronic device can switch from an LTE single connection to an LTE-NR dual connection in a timely manner without interrupting data services, thereby reducing the risk of lost paging.

[0013] In one possible implementation, the electronic device is further used to: before interacting data with the network side through the LTE link, interact data with the network side device through the LTE link and the NR link at the same time; when the electronic device meets the second preset condition, actively send second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes an overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-element carried in the overheating field in the second UE auxiliary information is 0; the network side device is further used to release the NR link with the electronic device in response to the second UE auxiliary information; the electronic device is also used to turn off NR measurement after releasing the NR link.

[0014] In this way, when the electronic device has established an LTE-NR dual connection, if the electronic device detects that the NR link needs to be released, the electronic device can trigger the network side to release the NR link by reporting the second UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the second UE auxiliary information is 0. When the NR link has been disconnected and a single connection with the LTE access network device is established, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-0 or the overheating field does not carry any sub-information elements. In this way, the electronic device can be switched from a LTE single connection to a LTE-NR dual connection in a timely manner without interrupting data services, reducing the risk of lost paging.

[0015] In one possible implementation, the electronic device is further used to: before interacting data with the network side through the LTE link, interact data with the network side device through the LTE link and the NR link at the same time; when the electronic device meets the second preset condition, actively send second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes a maxCC field, and the number of uplink auxiliary carriers reducedCCsUL sub-element carried in the maxCC field in the second UE auxiliary information is 0; the network side device is further used to release the NR link with the electronic device in response to the second UE auxiliary information.

[0016] In this way, when the electronic device has established an LTE-NR dual connection, if the electronic device detects that the NR link needs to be released, the electronic device can trigger the network side to release the NR link by reporting the second UE auxiliary information to the network side. Among them, the number of sub-information element uplink carriers (reducedCCsUL) carried by the maxCC field in the second UE auxiliary information is 0. When the NR link has been disconnected and a single connection with the LTE access network device is established, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information element uplink carriers (reducedCCsUL) carried by the maxCC field in the first UE auxiliary information is non-0 or the maxCC field does not carry any sub-information element. In this way, the electronic device can be switched from a LTE single connection to a LTE-NR dual connection in a timely manner without interrupting data services, reducing the risk of lost paging.

[0017] In one possible implementation, the network side device is further used to send a UE capability query request to the electronic device before receiving the first UE auxiliary information; the electronic device is further used to send UE capability information to the network side device in response to the UE capability query request, wherein the UE capability information is used to characterize that the electronic device supports the overheating mechanism; the network side device is further used to send network reconfiguration information to the electronic device after receiving the UE capability information, wherein the network reconfiguration information includes overheating configuration information; the electronic device is further used to execute the configuration content in the overheating configuration information in response to the network reconfiguration information.

[0018] In one possible implementation, the electronic device is also used to send a wireless resource control RRC connection release signaling to the network side device before actively sending the first UE auxiliary information to the network side device when it is detected that the electronic device has no data service; the network side device is also used to disconnect the RRC connection with the electronic device in response to the RRC connection release signaling; the electronic device is also used to send an RRC connection establishment signaling to the network side device when the electronic device meets a second preset condition and detects that the electronic device has a data service; the network side device is also used to establish an RRC connection with the electronic device in response to the RRC connection establishment signaling; the electronic device is also used to turn off NR measurement and send second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-element in the second UE auxiliary information is 0; the network side device is also used to interact data with the electronic device through an LTE link in response to the second UE auxiliary information.

[0019] In this way, when the electronic device has disconnected the RRC connection with the network side, if the electronic device detects that the NR link is not needed, when the electronic device resumes establishing the RRC connection, the electronic device can turn off the NR measurement and send the second UE auxiliary information to the network side, instructing the network side not to trigger the establishment of the NR link. Afterwards, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-zero or the overheating field does not carry any sub-information elements. In this way, when the electronic device detects the release of the NR link, the network side can no longer trigger the establishment of an NR link with the electronic device; when the electronic device detects the establishment of an LTE-NR dual connection, it can switch from a LTE single connection to an LTE-NR dual connection in a timely manner without interrupting data services, thereby reducing the risk of lost paging.

[0020] The above-mentioned first preset condition may include any one of the following: 1. The screen of the electronic device is on; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet required to be transmitted by the electronic device is greater than the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is greater than the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold, and so on.

[0021] The above-mentioned second preset condition may include any one of the following: 1. The screen of the electronic device is off; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is less than or equal to the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet to be transmitted by the electronic device is less than or equal to the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is less than or equal to the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold.

[0022] In the second aspect, the present application provides an electronic device, including: one or more processors; a computer storage medium, the computer storage medium including computer instructions, when the one or more processors execute the computer instructions, the electronic device performs the following actions: data interaction with a network side device through a long term evolution LTE link; when the electronic device meets a first preset condition, actively sends first UE auxiliary information to the network side device; wherein the first user equipment UE auxiliary information includes a first field, and the number of uplink auxiliary carriers reducedCCsUL carried by the sub-information element in the first field is a first value or the first field does not carry any sub-information element, and the first value is greater than 0; establish a new air interface NR link with the network side device; and interact with the network side device through the LTE link and the NR link at the same time.

[0023] Through an electronic device provided by the present application, the electronic device can trigger the network side to quickly establish an NR link connection or release the NR link connection with the electronic device by sending UE auxiliary information to the network side. Specifically, the overheating protection field or the maximum auxiliary carrier (maxCC) and other fields in the UE auxiliary information can be used to instruct the network side to establish an NR link connection or release the NR link connection. In this way, when the electronic device needs to release the NR connection in the case of LTE-NR dual connection, it quickly triggers the network side to release the NR SCG to reduce power consumption. When the electronic device needs to establish an LTE-NR dual connection in the case of a single LTE connection, the electronic device can quickly trigger the network side to add an NR SCG to quickly restore the LTE-NR dual connection and increase the data transmission rate.

[0024] Among them, 1. When the protocol version of the first UE auxiliary information can be the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, the first field is the overheating protection overheating field. 2. When the protocol type of the first UE auxiliary information can be the 3GPP technical protocol specification R16 version, the first field is the maximum number of auxiliary carriers maxCC field.

[0025] In one possible implementation, the electronic device interacts with the network side device through the LTE link and the NR link at the same time, specifically including: the electronic device sends data to the network side device through the uplink main carrier on the LTE link and N uplink auxiliary carriers activated by the network side device on the NR link at the same time, where N is a first value.

[0026] In a possible implementation, the electronic device can interact with the network side device through the LTE link and the NR link at the same time before interacting with the network side through the LTE link. When the electronic device meets the second preset condition, the electronic device actively sends the secondary cell group failure SCG failure signaling to the network side device. The electronic device releases the NR link with the network side device and turns off the NR measurement.

[0027] In a possible implementation, before the electronic device interacts with the network side through the LTE link, it interacts with the network side device through the LTE link and the NR link at the same time. When the electronic device meets the second preset condition, the electronic device actively sends the second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes an overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the overheating field in the second UE auxiliary information is 0. The electronic device and the network side device release the NR link and turn off the NR measurement.

[0028] In a possible implementation, before the electronic device interacts with the network side through the LTE link, it interacts with the network side device through the LTE link and the NR link at the same time. When the electronic device meets the second preset condition, the electronic device actively sends the second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes the maxCC field, and the uplink auxiliary carrier number reducedCCsUL sub-information element carried in the maxCC field in the second UE auxiliary information is 0. The electronic device releases the NR link with the network side device and turns off the NR measurement.

[0029] In a possible implementation, before sending the first UE auxiliary information to the network side device, the electronic device receives a UE capability query request sent by the network side device. In response to the UE capability query request, the electronic device sends UE capability information to the network side device, wherein the UE capability information is used to characterize that the electronic device supports the overheating mechanism. The electronic device receives network reconfiguration information sent by the network side device, and the network reconfiguration information includes overheating configuration information. In response to the network reconfiguration information, the electronic device executes the configuration content in the overheating configuration information.

[0030] In one possible implementation, before actively sending the first UE auxiliary information to the network side device, the electronic device sends a wireless resource control RRC connection release signaling to the network side device when it is detected that the electronic device has no data service, and the RRC connection release signaling is used to instruct the network side device to disconnect the RRC connection with the electronic device. The electronic device disconnects the RRC connection with the network side device. When the electronic device meets the second preset condition and detects that the electronic device has a data service, the electronic device sends an RRC connection establishment signaling to the network side device, and the RRC establishment signaling is used to instruct the network side device to establish an RRC connection with the electronic device. The electronic device establishes an RRC connection with the network side device. The electronic device turns off NR measurement and sends the second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-element in the second UE auxiliary information is 0. The electronic device and the network side device interact with data through an LTE link.

[0031] Among them, the above-mentioned first preset condition may include any one of the following: 1. The screen of the electronic device is on; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet required to be transmitted by the electronic device is greater than the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is greater than the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold, and so on.

[0032] The above-mentioned second preset condition may include any one of the following: 1. The screen of the electronic device is off; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is less than or equal to the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet to be transmitted by the electronic device is less than or equal to the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is less than or equal to the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold.

[0033] In a third aspect, the present application provides a chip system, which is applied to electronic equipment, including: an application processor AP and a baseband processor BP; wherein:

[0034] Baseband processor, used for data exchange with network-side devices through Long Term Evolution LTE link;

[0035] The application processor is further configured to send a first instruction to the baseband processor when the electronic device meets a first preset condition;

[0036] The baseband processor is further used to actively send the first UE auxiliary information to the network side device in response to the first instruction; wherein the first user equipment UE auxiliary information includes a first field, the number of uplink auxiliary carriers of the sub-information element reducedCCsUL carried in the first field is a first value or the first field does not carry any sub-information element, and the first value is greater than 0;

[0037] The baseband processor is also used to establish a new air interface NR link with the network side equipment;

[0038] The baseband processor is also used to exchange data with network-side devices through LTE links and NR links at the same time.

[0039] Through a chip system provided by the present application, the baseband processor can trigger the network side to quickly establish an NR link connection or release the NR link connection with the baseband processor by sending UE auxiliary information to the network side. Specifically, the overheating protection field or the maximum auxiliary carrier (maxCC) and other fields in the UE auxiliary information can be used to instruct the network side to establish an NR link connection or release the NR link connection. In this way, when the baseband processor needs to release the NR connection in the case of LTE-NR dual connection, it quickly triggers the network side to release the NR SCG to reduce power consumption. When the baseband processor needs to establish an LTE-NR dual connection in the case of a single LTE connection, the baseband processor can quickly trigger the network side to add an NR SCG to quickly restore the LTE-NR dual connection and increase the data transmission rate.

[0040] Among them, 1. When the protocol version of the first UE auxiliary information can be the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, the first field is the overheating protection overheating field. 2. When the protocol type of the first UE auxiliary information can be the 3GPP technical protocol specification R16 version, the first field is the maximum number of auxiliary carriers maxCC field.

[0041] In one possible implementation, the baseband processor is specifically used to simultaneously send data to the network side device through the uplink main carrier on the LTE link and N uplink auxiliary carriers activated by the network side device on the NR link, where N is a first value.

[0042] In a possible implementation, the baseband processor is further used to simultaneously interact with the network side device through the LTE link and the NR link before interacting with the network side through the LTE link. The application processor is also used to send a second instruction to the baseband processor when the electronic device meets the second preset condition. The baseband processor is also used to actively send a secondary cell group failure SCG failure signaling to the network side device in response to the second instruction. The baseband processor is also used to release the NR link with the network side device and turn off the NR measurement.

[0043] In one possible implementation, the baseband processor is further used to simultaneously interact with the network side device through the LTE link and the NR link before interacting with the network side through the LTE link. The application processor is also used to send a second instruction to the baseband processor when the electronic device meets the second preset condition. The baseband processor is also used to actively send the second UE auxiliary information to the network side device in response to the second instruction, wherein the second UE auxiliary information includes an overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the overheating field in the second UE auxiliary information is 0. The baseband processor releases the NR link with the network side device and turns off the NR measurement.

[0044] In one possible implementation, the baseband processor is also used to simultaneously interact with the network side device through the LTE link and the NR link before interacting with the network side through the LTE link. The application processor is also used to send a second instruction to the baseband processor when the electronic device meets the second preset condition. The baseband processor is also used to actively send the second UE auxiliary information to the network side device in response to the second instruction, wherein the second UE auxiliary information includes a maxCC field, and the number of uplink auxiliary carriers reducedCCsUL sub-element carried in the maxCC field in the second UE auxiliary information is 0. The baseband processor releases the NR link with the network side device and turns off the NR measurement.

[0045] In a possible implementation, the baseband processor is further used to receive a UE capability query request sent by the network side device before sending the first UE auxiliary information to the network side device. The baseband processor is further used to send UE capability information to the network side device in response to the UE capability query request, wherein the UE capability information is used to characterize that the electronic device supports the overheating mechanism. The baseband processor is further used to receive network reconfiguration information sent by the network side device, wherein the network reconfiguration information includes overheating configuration information. The baseband processor is further used to execute the configuration content in the overheating configuration information in response to the network reconfiguration information.

[0046] In a possible implementation, the application processor is further used to send a third instruction to the baseband processor when it is detected that the electronic device has no data service before sending the first instruction to the baseband processor. The baseband processor is also used to send a radio resource control RRC connection release signaling to the network side device in response to the third instruction, and the RRC connection release signaling is used to instruct the network side device to disconnect the RRC connection with the electronic device. The baseband processor is also used to disconnect the RRC connection with the network side device. The application processor is also used to send a second instruction to the baseband processor when the electronic device meets the second preset condition. The application processor is also used to send a fourth instruction to the baseband processor when it is detected that the electronic device has data service. The baseband processor is also used to send an RRC connection establishment signaling to the network side device in response to the fourth instruction, and the RRC establishment signaling is used to instruct the network side device to establish an RRC connection with the electronic device. The baseband processor is also used to establish an RRC connection with the network side device. The baseband processor is also used to close the NR measurement in response to the second instruction, and send the second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-information element in the second UE auxiliary information is 0. The baseband processor is also used to exchange data with network-side devices through the LTE link.

[0047] Among them, the above-mentioned first preset condition may include any one of the following: 1. The screen of the electronic device is on; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet required to be transmitted by the electronic device is greater than the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is greater than the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold, and so on.

[0048] The above-mentioned second preset condition may include any one of the following: 1. The screen of the electronic device is off; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is less than or equal to the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet to be transmitted by the electronic device is less than or equal to the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is less than or equal to the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold.

[0049] In a fourth aspect, the present application provides a network connection method, the method comprising: an electronic device interacting with a network side device through a long term evolution LTE link; when the electronic device meets a first preset condition, actively sending first UE auxiliary information to the network side device; wherein the first user equipment UE auxiliary information includes a first field, and the number of uplink auxiliary carriers of the sub-information element reducedCCsUL carried in the first field is a first value or the first field does not carry any sub-information element, and the first value is greater than 0. The electronic device establishes a new air interface NR link with the network side device. The electronic device interacts with the network side device through the LTE link and the NR link at the same time.

[0050] Through a network connection method provided by the present application, an electronic device can trigger the network side to quickly establish an NR link connection or release the NR link connection with the electronic device by sending UE auxiliary information to the network side. Specifically, the overheating protection field or the maximum auxiliary carrier (maxCC) and other fields in the UE auxiliary information can be used to instruct the network side to establish an NR link connection or release the NR link connection. In this way, when the electronic device needs to release the NR connection in the case of LTE-NR dual connection, it quickly triggers the network side to release the NR SCG to reduce power consumption. When the electronic device needs to establish an LTE-NR dual connection in the case of a single LTE connection, the electronic device can quickly trigger the network side to add an NR SCG to quickly restore the LTE-NR dual connection and increase the data transmission rate.

[0051] Among them, 1. When the protocol version of the first UE auxiliary information can be the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, the first field is the overheating protection overheating field. 2. When the protocol type of the first UE auxiliary information can be the 3GPP technical protocol specification R16 version, the first field is the maximum number of auxiliary carriers maxCC field.

[0052] In one possible implementation, the electronic device interacts with the network side device through the LTE link and the NR link at the same time, specifically including: the electronic device sends data to the network side device through the uplink main carrier on the LTE link and N uplink auxiliary carriers activated by the network side device on the NR link at the same time, where N is a first value.

[0053] In a possible implementation, the electronic device can interact with the network side device through the LTE link and the NR link at the same time before interacting with the network side through the LTE link. When the electronic device meets the second preset condition, the electronic device actively sends the secondary cell group failure SCG failure signaling to the network side device. The electronic device releases the NR link with the network side device and turns off the NR measurement.

[0054] In a possible implementation, before the electronic device interacts with the network side through the LTE link, it interacts with the network side device through the LTE link and the NR link at the same time. When the electronic device meets the second preset condition, the electronic device actively sends the second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes an overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the overheating field in the second UE auxiliary information is 0. The electronic device and the network side device release the NR link and turn off the NR measurement.

[0055] In a possible implementation, before the electronic device interacts with the network side through the LTE link, it interacts with the network side device through the LTE link and the NR link at the same time. When the electronic device meets the second preset condition, the electronic device actively sends the second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes the maxCC field, and the uplink auxiliary carrier number reducedCCsUL sub-information element carried in the maxCC field in the second UE auxiliary information is 0. The electronic device releases the NR link with the network side device and turns off the NR measurement.

[0056] In a possible implementation, before sending the first UE auxiliary information to the network side device, the electronic device receives a UE capability query request sent by the network side device. In response to the UE capability query request, the electronic device sends UE capability information to the network side device, wherein the UE capability information is used to characterize that the electronic device supports the overheating mechanism. The electronic device receives network reconfiguration information sent by the network side device, and the network reconfiguration information includes overheating configuration information. In response to the network reconfiguration information, the electronic device executes the configuration content in the overheating configuration information.

[0057] In one possible implementation, before actively sending the first UE auxiliary information to the network side device, the electronic device sends a wireless resource control RRC connection release signaling to the network side device when it is detected that the electronic device has no data service, and the RRC connection release signaling is used to instruct the network side device to disconnect the RRC connection with the electronic device. The electronic device disconnects the RRC connection with the network side device. When the electronic device meets the second preset condition and detects that the electronic device has a data service, the electronic device sends an RRC connection establishment signaling to the network side device, and the RRC establishment signaling is used to instruct the network side device to establish an RRC connection with the electronic device. The electronic device establishes an RRC connection with the network side device. The electronic device turns off NR measurement and sends the second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-element in the second UE auxiliary information is 0. The electronic device and the network side device interact with data through an LTE link.

[0058] Among them, the above-mentioned first preset condition may include any one of the following: 1. The screen of the electronic device is on; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet required to be transmitted by the electronic device is greater than the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is greater than the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold, and so on.

[0059] The above-mentioned second preset condition may include any one of the following: 1. The screen of the electronic device is off; 2. The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is less than or equal to the first preset rate; 3. The screen of the electronic device is on, and the size of the data packet to be transmitted by the electronic device is less than or equal to the first preset threshold; 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold; 5. The screen of the electronic device is off, and the data transmission rate between the electronic device and the network side device is less than or equal to the second preset rate; 6. The screen of the electronic device is off, and the size of the data packet transmitted between the electronic device and the network side device is greater than the second preset threshold.

[0060] In a fifth aspect, an embodiment of the present application provides a computer storage medium, including computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the network connection method in any possible implementation of any of the above aspects.

[0061] In a sixth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer, enables the computer to execute a network connection method in any possible implementation of any of the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 A schematic diagram of an EN-DC network architecture provided in an embodiment of the present application;

[0063] Figure 2 A schematic diagram of layered communication of an interface protocol of an electronic device provided in an embodiment of the present application;

[0064] Figure 3 A communication diagram of a data bearer link on a UE side provided in an embodiment of the present application;

[0065] Figure 4 A communication schematic diagram of a data bearer link on the network side provided in an embodiment of the present application;

[0066] Figure 5 A schematic diagram of a process for triggering the network to release an NR connection provided in an embodiment of the present application;

[0067] Figure 6 A schematic diagram of a process for triggering a network to establish an NR connection provided in an embodiment of the present application;

[0068] Figure 7 A schematic diagram of another process of triggering a network to establish an NR connection provided in an embodiment of the present application;

[0069] Figure 8 A schematic diagram of the network configuration and reporting process of the overheating field in the UE auxiliary information provided in an embodiment of the present application;

[0070] Fig. 9 A schematic diagram of a network connection method provided in an embodiment of the present application;

[0071] Fig.10 A schematic diagram of a network connection method provided by another embodiment of the present application;

[0072] Fig.11 A schematic diagram of a network connection method provided by another embodiment of the present application;

[0073] Fig.12 A schematic diagram of a network connection method provided by another embodiment of the present application;

[0074] Fig.13 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0075] Fig.14 A schematic diagram of the structure of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0076] The following will be combined with the accompanying drawings to clearly and thoroughly describe the technical solutions in the embodiments of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0077] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0078] The following introduces an EN-DC network architecture involved in this application.

[0079] Figure 1 An EN-DC network architecture involved in this application is shown.

[0080] like Figure 1 As shown, the EN-DC network architecture includes a main base station MeNB (a base station in a 4G LTE access network), a secondary base station SgNB (a base station in a 5G NR), an electronic device (which may be referred to as a UE), a mobility management entity (MME), and a serving gateway (S-GW). The number of main base stations, secondary base stations, and electronic devices is not limited, and one is used as an example here, which does not constitute a limitation.

[0081] The base station (specifically MeNB or SgNB) provides an air interface for users, and the electronic device UE is connected to the base station wirelessly. The base station is further connected to the operator's core network via a wired connection to achieve business communications.

[0082] Electronic equipment UE refers to a device that supports Internet connection, which may include but is not limited to mobile phones, tablet computers (tablepersonal computers), personal digital assistants (PDAs), mobile internet devices (MIDs), wearable devices, and other devices that support network communication.

[0083] MME, a network element belonging to the core network, is mainly responsible for providing signaling transmission, user authentication and roaming management for NSA networking.

[0084] The serving gateway (S-GW) is mainly responsible for processing local network user data, such as routing or forwarding packet data.

[0085] like Figure 1 As shown, the main base station MeNB and the mobile management entity MME are connected through the S1-C interface, and the main base station MeNB and the service gateway S-GW are connected through the S1-U interface. The main base station MeNB and the secondary base station SeNB can be connected through the X2 interface, and the secondary base station SeNB can also be connected to the S-GW through the S1-U interface according to actual business needs. During the communication process, the main base station MeNB can generate an RRC message after coordinating communication with the secondary base station SeNB through the X2 interface, and then forward it to the UE to realize the functions of broadcasting network system information, switching, measurement configuration, and reporting of measurement reports, etc., without limitation.

[0086] The following introduces the interface protocol layering of the electronic device involved in this application.

[0087] Figure 2 The following is a schematic diagram of the layered communication of the interface protocol of an electronic device provided by an embodiment of the present application. In practical applications, an interface refers to the information exchange mode between different network elements, and the interface protocols used for communication between different interfaces may be different. At present, the interface protocol of the wireless standard is divided into three layers: physical layer (PHY), data link layer and network layer.

[0088] like Figure 2 As shown, the physical layer PHY is located at the bottom layer and is mainly responsible for processing modulation and demodulation, antenna mapping or other telecommunication physical layer functions.

[0089] The data link layer includes the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer and the media access control (MAC) layer. Among them, the PDCP layer is mainly responsible for performing header compression to reduce the bit flow of wireless interface transmission. The RLC layer is mainly responsible for segmentation and connection, sequence control of high-level data, etc. The MAC layer is mainly responsible for hybrid automatic repeat request (HARQ) retransmission and uplink and downlink scheduling. In practical applications, the LTE-NR dual connection technology can specifically realize the carrier aggregation bearing and separation at the L2 data link layer. As mentioned above, the carrier aggregation is specifically carried and separated at the medium access control (MAC) layer, and the dual connection bearing separation is implemented at the packet data convergence protocol (PDCP) layer.

[0090] The network layer includes the non-access stratum (NAS) and the RRC layer. Among them, the non-access stratum NAS can be used to transmit user information or control information, such as the establishment and release of 4G / 5G communication links or services, and mobility management information. The protocol layer below the NAS layer can also be called the access stratum (AS). The RRC layer supports signaling protocols for various functions between electronic devices UE and base stations eNB, broadcasts system messages of the NAS layer and AS layer, establishes, maintains and releases RRC connections, establishes, modifies and releases end-to-end wireless bearers (such as wireless access network links between UE and the network side), and includes UE measurement reports, cell switching and reselection. Mobile management including functions such as reselection. In actual applications, 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 will be described in detail below in this application.

[0091] The following introduces the user plane protocol stack architecture in the EN-DC networking technology involved in this application.

[0092] The EN-DC networking technology defines a master cell group (MCG) and a secondary cell group (SCG), and divides data bearers into three categories according to different data separation and forwarding methods: MCG bearers, SCG bearers, and Split bearers. The master cell group MCG refers to the cluster of cells where the master base station MeNB of at least one 4G LTE access network is located, and the secondary cell group refers to the cluster of cells where the secondary base station SgNB of at least one 5G NR is located.

[0093] Figure 3 A communication schematic diagram of a data bearer link on the UE side provided in an embodiment of the present application is shown.

[0094] like Figure 3 As shown, the UE side can perceive three types of data bearers, namely: MCG bearer, SCG bearer and split bearer. Among them, MCG bearer refers to data routed from the S-GW of the core network to the main base station MeNB, and forwarded directly to the UE by the MeNB. SCG bearer refers to data routed from the S-GW of the core network to the secondary base station SeNB, and forwarded directly to the UE by the SeNB. Split bearer means that data is separated on the base station side, and can be forwarded to the UE by the main base station MeNB or the secondary base station SeNB, or the main base station MeNB or the secondary base station SeNB can simultaneously transmit data to the UE according to the preset separation ratio to provide services.

[0095] When the UE perceives that the data bearer is an MCG bearer, the communication link used for data communication (also called MCG link) is: LTE PDCP / NR PDCP-LTE RLC-LTE MAC. When the UE perceives that the data bearer is an SCG bearer, the communication link used for data communication (also called SCG link) is: NR PDCP-NR RLC-NR MAC. When the UE perceives that the data bearer is a Split bearer, the communication link used for data communication (also called Split link) is: NR PDCP-LTE RLC-LTE MAC, or NR PDCP-NR RLC-LTE MAC. Among them, since the SCG link only uses the network resources of 5G NR, the SCG link can also be called an NR link. The MCG link uses the network resources of 4G LTE, and the MCG link can also be called an LTE link.

[0096] Figure 4 A communication schematic diagram of a data bearer link on the network side provided in an embodiment of the present application is shown.

[0097] like Figure 4As shown, there are 6 ways of perceiving data bearer on the network side, namely: MCG bearer terminated by the master node (MN, specifically referring to the main base station MeNB), SCG bearer terminated by the MN, separated Split bearer terminated by the MN, MCG bearer terminated by the secondary node (SN, specifically referring to the secondary base station SeNB), SCG bearer terminated by the SN and separated Split bearer terminated by the SN.

[0098] Among them, the MN terminated bearer refers to the wireless bearer of the PDCP layer in the main base station MeNB, not the wireless bearer of the secondary base station SeNB. Conversely, the SN terminated bearer refers to the wireless bearer of the PDCP layer in the secondary base station SeNB, not the wireless bearer of the main base station MeNB. When the data bearer perceived by the network side is the MCG bearer terminated by the MN, the communication link during data communication is: LTEPDCP / NR PDCP-LTE RLC-LTE MAC. When the data bearer perceived by the network side is the Split bearer terminated by the MN, the communication link during data communication is: NR PDCP-LTE RLC-LTE MAC, or NR PDCP-NR RLC-NRMAC. The specific selection can be made according to actual needs and is not limited. Regarding the communication links corresponding to various data bearers perceived by the network side, as follows Figure 4 As shown, no further description is given here.

[0099] EN-DC is an important usage scenario under 5G NSA networking. Electronic devices communicate data through the LTE and NR access domain network sides, send and receive service data packets on the two access networks, and significantly improve the user data experience. In EN-DC mode, when electronic devices work in LTE and NR standards at the same time, the related devices of the two standards need to work at the same time. Compared with single-mode operation, electronic devices consume more power and are prone to temperature rise.

[0100] In some scenarios, such as when the screen is off, or when low-rate applications are used, or when there is no data traffic, or when power saving mode is turned on, the electronic device can meet the service needs in LTE, and it is necessary to give priority to power consumption factors and release the NR connection. In addition, due to the high temperature of the electronic device, the NRSCG also needs to be released for the protection of the electronic device and the user of the electronic device.

[0101] Figure 5 A schematic diagram of a process of triggering the network to release an NR connection provided in this application is shown.

[0102] like Figure 5As shown, the electronic device UE may include an application processor AP, a NAS layer, and an RRC layer. The RRC layer specifically includes an LTE RRC (abbreviated as LRRC) and an NR RRC (abbreviated as NRRC). The process of releasing the NR SCG by the electronic device may be as follows:

[0103] 1. When the application processor AP of the electronic device detects that the NR SCG needs to be released, it can instruct the NAS layer to release the SCG.

[0104] 2. The NAS layer can notify the RRC layer to release the access stratum (AS) resources of NR.

[0105] 3. The RRC layer can send an SCG failure message to the network side device, which can be used to notify the network side device to release the SCG.

[0106] 4. After the network side device receives the SCG failure message sent by the RRC layer of the electronic device, the network side device can disconnect the NR link with the RRC layer of the electronic device. The RRC layer can turn off the NR measurement.

[0107] 5. After the RRC layer of the electronic device disconnects the NR link and closes the NR measurement, it can notify the NAS layer that the NR link is deleted and the LRRC connection is not released.

[0108] By reporting the SCG failure message to the network side device, the network side device can be triggered to release the NR SCG. However, if the electronic device frequently reports the SCG failure message to the network side device, the abnormal index on the network side will increase, and the network will not be able to determine the cause of the network abnormality. At the same time, there is also a situation in the existing network where the terminal reports the SCG failure and the network does not release the SCG.

[0109] In some scenarios, electronic devices have released the NR SCG, but when the electronic devices need to use 5G services, the electronic devices need to restore and establish 5G connections as soon as possible to ensure the application's network speed requirements and user experience.

[0110] Figure 6 A schematic diagram of a process of triggering a network to establish an NR connection provided in this application is shown.

[0111] like Figure 6 As shown, the process of establishing an NR connection by an electronic device may be as follows:

[0112] 1. Electronic devices can start high-traffic applications and interact with the main base station MeNB for high-traffic data.

[0113] 2. The main base station can determine that the electronic device needs to add a secondary base station SgNB based on the data traffic information of the electronic device.

[0114] 3. The primary base station may determine whether the interval for adding the secondary base station has timed out (for example, exceeds 60 seconds).

[0115] 4. If the interval for adding the secondary base station times out (for example, exceeds 60 seconds), the primary base station may send a B1 event measurement signaling to the electronic device.

[0116] 5. After receiving the B1 event measurement signaling, the electronic device can send a B1 event measurement report to the master base station when the signal of the heterogeneous system neighboring cell is greater than the specified threshold. The B1 event measurement report includes the heterogeneous system neighboring cell whose signal measured by the electronic device is greater than the specified threshold.

[0117] 6. The primary base station can select a suitable 5G neighboring cell for the electronic device based on the B1 event measurement report.

[0118] 7. After the primary base station selects a suitable 5G neighboring cell for the electronic device, it can send a secondary base station addition request to the secondary base station.

[0119] 8. After receiving the secondary base station adding request sent by the primary base station, the secondary base station may return a secondary base station adding response to the primary base station.

[0120] 9. The primary base station may send a secondary base station adding instruction to the electronic device.

[0121] 10. The electronic device can add a 5G base station as a secondary base station according to the secondary base station adding instruction.

[0122] When establishing an NR connection in the above manner, the electronic device needs to passively wait for the main base station to start the NR SCG addition process. Among them, the main base station starts the NR SCG addition periodically. Even if the electronic device has met the NR SCG addition conditions, the main base station will wait until the next addition interval times out before adding the NR SCG for the electronic device. For example, the NRSCG addition interval of the main base station can be 60s, and the electronic device will wait for up to 60s to connect to the 5G network. In some possible scenarios, for example, the electronic device triggers the main base station on the network side to release the NR SCG due to low traffic. Afterwards, the electronic device starts the speed measurement application to measure the mobile network speed, but because the NR SCG addition interval has not arrived, the main base station on the network side does not start the NR SCG addition process at this time, resulting in the electronic device measuring the speed only at the LTE rate. In some other possible scenarios, the video software of the electronic device uses a segmented buffering mechanism to download videos from the network. For example, a 1-gigabyte (GB) video is divided into 5 data slices for buffering, and the data volume of each data slice is 200 megabytes (MB). After the electronic device completes the buffering of the first 200MB data slice, it will pause buffering or small traffic buffering, so that the electronic device will release the NRSCG. After the first 200MB data slice is played, the electronic device starts to download the second 200MB data slice. At this time, since the NR SCG addition interval has not timed out, the main base station on the network side does not start the NR SCG addition process. The electronic device can only download using the LTE network. The network speed is not fast enough, which will cause the video playback to freeze. Therefore, restoring the connection to NR in the above way will cause the electronic device to be unable to connect to the 5G network in time when it needs to use the 5G network.

[0123] Figure 7 A schematic diagram of another process of triggering a network to establish an NR connection provided in the present application is shown.

[0124] like Figure 7 As shown, the process of establishing an NR connection by an electronic device may be as follows:

[0125] 1. The auxiliary base station of the electronic device is released.

[0126] 2. The electronic device determines that an auxiliary base station needs to be added.

[0127] 3. The electronic device releases the RRC connection with the primary base station.

[0128] 4. The electronic device triggers a service request process to the primary base station.

[0129] 5. The primary base station establishes an RRC connection with the electronic device and adds a secondary base station for the electronic device.

[0130] In the above-mentioned method of establishing an NR connection, the electronic device needs to actively release the RRC connection locally, and then re-establish the RRC connection with the main base station to trigger the network configuration to add the NR SCG. Among them, after the electronic device releases the RRC connection locally, it will cause the electronic device to disconnect from the network for a certain period of time, and the application will not be able to obtain network data, causing user-perceivable freezes, affecting the user experience, and may also cause the electronic device to lose paging. Frequent triggering of this process may also cause the network to believe that the electronic device is abnormal, leading to other compatibility issues.

[0131] Therefore, an embodiment of the present application provides a network connection method, and the electronic device can trigger the network side to quickly establish an NR link connection or release the NR link connection with the electronic device by sending UE auxiliary information to the network side. Specifically, the overheating protection field or the maximum auxiliary carrier (maxCC) and other fields in the UE auxiliary information can be used to instruct the network side to establish an NR link connection or release the NR link connection. In this way, when the electronic device needs to release the NR connection in the case of LTE-NR dual connection, it quickly triggers the network side to release the NR SCG to reduce power consumption. When the electronic device needs to establish an LTE-NR dual connection in the case of a single LTE connection, the electronic device can quickly trigger the network side to add an NR SCG to quickly restore the LTE-NR dual connection and increase the data transmission rate.

[0132] In low-speed application scenarios, electronic devices can meet the network speed requirements by using only the LTE network. In order to reduce power consumption, it is necessary to release the NR link established with the network side. In high-speed application scenarios, electronic devices cannot meet the network speed requirements when they are only connected to the LTE network, and the electronic devices need to establish an LTE-NR dual connection with the network side. Among them, low-speed application scenarios may refer to application scenarios in which electronic devices have low network requirements, specifically application scenarios in which the rate at which electronic devices transmit data (referred to as data transmission rate) is low, or the size of the data packets that the electronic devices need to transmit is small. Conversely, application scenarios in which electronic devices have high network requirements can be referred to as high-speed application scenarios.

[0133] In the embodiment of the present application, when the electronic device is in a low network speed application scenario, it can be said that the electronic device meets the first preset condition; when the electronic device is in a high network speed application scenario, it can be said that the electronic device meets the second preset condition.

[0134] The following are some possible low-speed application scenarios:

[0135] 1. The electronic device is in the off state.

[0136] In this application, the screen state of the electronic device can be divided into a screen-on state and a screen-off state. In actual applications, the screen-on state can specifically include a screen-on unlock state and a screen-on lock state.

[0137] Among them, the screen state of the electronic device can be specifically identified by software program or hardware detection method. Taking the software program detection method as an example, the electronic device can first determine the on and off state of the screen through the screen display value (isScreenOn) defined in the human-computer interaction (isInteractive) code under the power management (powermanager). For example, when isScreenOn is true, it means that the electronic device is in the on-screen state; otherwise, it is determined that the electronic device is in the off-screen state. After determining that the electronic device is in the on-screen state, the electronic device can further detect whether the electronic device is further locked through the screen lock code (isScreenLocked). If locked, it can be determined that the electronic device is in the locked screen state, specifically, the electronic device can be in the on-screen locked screen state; otherwise, it is determined that the electronic device is in the on-screen state, specifically, the electronic device is in the on-screen unlocked state.

[0138] Alternatively, the electronic device can determine the screen status of the electronic device through an Android broadcast message sent by its own system. Specifically, when the Android broadcast message is used to indicate that the screen is on, it can be determined that the electronic device is in the screen-on state; when it is used to indicate that the screen is off, it can be determined that the electronic device is in the screen-off state; when it is used to indicate that the screen is locked, it can be determined that the electronic device is in the screen-locked state, and so on. There are many ways to identify the screen status of an electronic device, and the present invention does not list them one by one here.

[0139] When the screen of an electronic device is off, the electronic device usually does not send or receive data, or only maintains the necessary data packets to ensure that the application is in the awake state, such as heartbeat test packets or monitoring data packets, etc. Usually this type of data packet is periodically sent and received and the size of the data packet is relatively small. In the above case, it can be regarded as that the electronic device has low requirements for network parameters, low network demand, and low requirements for network speed. In some cases, electronic devices can also support the running of background applications, but the requirements for network speed are not high. For example, the music application background downloads music from the network and plays it. A single connection of an electronic device to an LTE network can meet the needs of background applications.

[0140] 2. The electronic device is in the screen-on state and is running at a low network speed, that is, the data transmission rate of the electronic device is less than or equal to the preset rate.

[0141] In the present application, low network speed refers to a relatively low data transmission rate of an electronic device, for example, less than or equal to a preset rate. Specifically, the low network speed may specifically refer to a relatively low transmission rate of uplink data of an electronic device, for example, less than or equal to a first preset rate; it may also refer to a relatively low transmission rate of downlink data of an electronic device, for example, less than or equal to a second preset rate; it may also refer to a relatively low transmission rate of all data including uplink data and downlink data of the electronic device, for example, less than or equal to a third preset rate, etc. For the convenience of description, whether it is the transmission rate of uplink data or the transmission rate of downlink data, or the transmission rate of all data including uplink data and downlink data, the present application collectively refers to the transmission rate of data, referred to as the data transmission rate for short. The data transmission rate refers to the number of bits that an electronic device supports for data transmission per unit time, for example, 50 bits per second (bit / s).

[0142] The preset rate may be a system-defined setting, such as a user-defined setting based on user preferences or actual needs, or a value obtained based on a large amount of experimental data statistics, etc. The first preset rate, the second preset rate, and the third preset rate involved in this application are all system-defined settings, and they may be the same or different, without limitation.

[0143] In actual applications, there are many scenarios where electronic devices run at low network speeds. Three examples are given below.

[0144] First, the electronic device can turn on the function of running low-speed applications or turn off the function of running high-speed applications. Specifically, in order to meet the demand for low-speed network use, the electronic device can perform the following application function settings in the power saving mode: allow low-speed applications to run or prohibit high-speed applications from running, that is, turn on the function of running low-speed applications or turn off the function of running high-speed applications. It can be understood that after turning off the function of running high-speed applications in the electronic device, only low-speed applications are allowed to run in the electronic device. Since the data transmission rate allowed in these low-speed applications is small, the electronic device can determine that the electronic device is in low-speed operation at this time. Optionally, when multiple low-speed applications are running simultaneously in the electronic device, the sum of their data transmission rates is also relatively small, for example, less than the preset rate, which can also meet the demand for low-speed network use. At this time, it is still determined that the electronic device is in low-speed operation.

[0145] Among them, the low-speed application refers to an application installed in the electronic device that has a low data transmission rate requirement, for example, requiring the transmission rate of the data to be transmitted in the application to be less than the fourth preset rate, etc. The low-speed application can be a system-defined setting or a user-defined setting, such as a camera, phone, text message, memo, and other applications.

[0146] Accordingly, a high-speed application refers to an application installed in an electronic device that has a high data transmission rate requirement, such as requiring a data transmission rate greater than or equal to a fifth preset rate. The high-speed application may also be a system-defined setting or a user-defined setting based on personal preferences, such as a music application and a video application.

[0147] Optionally, in order to exclude the situation that the electronic device is temporarily running at a low network speed, or to exclude the situation of misjudgment, the electronic device adds a duration judgment condition. Specifically, the electronic device can obtain the duration of the data transmission rate of the electronic device 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), it can be determined that the electronic device is running at a low network speed. Otherwise, it is still determined that the electronic device is not running at a low network speed. That is, the identification condition of the electronic device in a low network speed application scenario can be specifically: the electronic device is in a bright screen state, and the data transmission rate of the electronic device for a period of time is less than or equal to the preset rate.

[0148] The second type is that electronic devices and other devices exchange heartbeat packets to maintain normal communication connections. Specifically, when an electronic device does not conduct business communications with other devices (such as a base station), that is, the electronic device does not need to transmit business data, in order to maintain the communication connection between the electronic device and the other device, the electronic device can usually periodically send heartbeat packets to other devices to notify the electronic device to maintain a communication connection with other devices. In practical applications, 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, such as a few kb. Usually, when no business data is carried, the heartbeat packet can be an empty packet, that is, it only carries a packet header and does not carry business data.

[0149] The third type is a scenario where the electronic device is running at a low network speed, such as a game scenario or a navigation scenario. For example, in a game scenario, the electronic device is running a game application. In actual applications, the game application only requires a higher operating speed of the application processor (AP) of the electronic device, and relatively speaking, requires a lower data transmission rate (ie, network rate) of the electronic device. Therefore, when the electronic device is in a game scenario, it can be determined that the electronic device is running at a low network speed.

[0150] 3. The electronic device is in a screen-on state, and the size of the data packet that the electronic device needs to transmit is less than or equal to a first preset threshold.

[0151] In the bright screen state, in order to meet the low network speed application scenario, electronic devices can consider not only the data transmission rate, but also the amount of data that the electronic device needs to transmit (that is, the size of the data packet to be transmitted). Among them, the size of the data packet that the electronic device needs to transmit can specifically refer to the size of all data packets that the electronic device needs to transmit in the application (that is, the amount of data required to be transmitted), or the size of the data packet that the electronic device needs to transmit per unit time.

[0152] Specifically, when the electronic device is in the screen-on state, if the size of the data packet that the electronic device needs to transmit is large, for example, greater than the first preset size threshold, the electronic device may consider that its current communication load is large, that is, the data packet or data volume that needs to be transmitted is large, and the network demand is high. Accordingly, the electronic device may consider that it is in a high-speed network application scenario. Conversely, if the size of the data packet that the electronic device needs to transmit is small, the electronic device may consider that its communication load is small, that is, the data packet or data volume that needs to be transmitted is small, and the network demand is not high. Accordingly, the electronic device may consider that it is in a low-speed network application scenario at this time.

[0153] 4. The device temperature of the electronic device is greater than or equal to the preset temperature threshold.

[0154] Regardless of whether the electronic device is in the screen-on state or the screen-off state, when the device temperature of the electronic device is too high, for example, when the device temperature is greater than or equal to the preset temperature threshold, it is easy to cause a freeze or disconnection from the network, and in severe cases, the electronic device may be burned, specifically, the application processor, baseband processor and other components of the electronic device may be burned. In order to reduce the temperature of the entire device and protect the device itself, the electronic device needs to automatically shut down 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 applications with low power consumption and low network speed requirements, such as weather applications and calendar applications. Therefore, when an electronic device detects that its entire device temperature is too high, it can be considered that the electronic device has currently shut down applications with high network speed requirements, that is, shut down high-speed applications in the electronic device. At this time, the electronic device is in a low-speed application scenario.

[0155] Among them, the detection method of the device temperature of the electronic device is not limited. For example, when a temperature sensor is installed in the electronic device, the device temperature of the electronic device or the temperature of a component on the electronic device (such as an application processor or a baseband processor, etc.) can be detected and checked through the temperature sensor.

[0156] In practical applications, the device temperature of an electronic device refers to the sum of the temperatures of all components in the entire electronic device when they are running. Since the temperature acquisition of each component has a certain error, this will lead to a large error in the acquisition of the device temperature of the electronic device, and the accuracy or precision of the acquisition is low. Therefore, in practical applications, the device temperature of an electronic device can be replaced by the temperature of some core components in the electronic device, such as the temperature of the application processor (AP), the temperature of the system on chip (SOC), the battery temperature, etc.

[0157] For example, the application processor (AP) is the most important hardware for the overall performance of an electronic device, and its performance directly affects the performance of the entire electronic device. Therefore, the temperature of the application processor will be an important manifestation of the device temperature. Taking the device temperature as the temperature of the application processor as an example, the electronic device can enter its own input and output system (basic input output system, BIOS) to obtain the temperature of the application processor; or, the electronic device can run the application processor temperature acquisition software (such as a Python script file, etc.) to obtain the temperature of the application processor. It is convenient to identify whether the application scenario of the electronic device is a high-speed application scenario or a low-speed application scenario based on the temperature of the application processor in the future, which will not be repeated here.

[0158] 5. The electronic device is in the screen-off state and is running at a low network speed, that is, the data transmission rate of the electronic device is less than or equal to the second preset rate.

[0159] When the screen is off, there are many scenarios where electronic devices are running at low network speed, which can be the following two.

[0160] The first is that in the screen-off state, the electronic device supports the running of background applications, such as playing music. In order to meet the demand for low network speed, the electronic device can set the following application functions: allow low network speed applications to run or prohibit high network speed applications from running, that is, turn on the function of running low network speed applications or turn off the function of running high network speed applications. Understandably, after turning off the function of running high network speed applications in the electronic device, only low network speed applications are allowed to run in the electronic device. Since the data transmission rate allowed in these low network speed applications is small, the electronic device can determine that the electronic device is in low network speed operation and the electronic device is in a low network speed application scenario. Optionally, when multiple low network speed applications are running simultaneously in the electronic device, the sum of their data transmission rates is also relatively small, for example, less than the second preset rate, which can also meet the demand for low network speed network use. At this time, it is still determined that the electronic device is in low network speed operation.

[0161] The second type is that when the electronic device is in the off state, the electronic device usually does not send or receive data, or only keeps the necessary data packets to ensure that the application is in the awake state, such as heartbeat test packets or monitoring data packets, etc. Usually this type of data packet is periodically sent and received and the size of the data packet is relatively small. In the above case, it can be regarded that the electronic device has low requirements for network parameters and low network demand, and it is considered that the electronic device is running at a low network speed, that is, it is in a low network speed application scenario.

[0162] Optionally, after the screen of the electronic device is turned off, its data transmission rate usually becomes slower, for example, the data transmission rate is less than a preset rate. Therefore, without considering the accuracy of identifying low-speed network application scenarios, when the electronic device detects that it is in a screen-off state, it can be directly considered that the electronic device is in a low-speed network application scenario.

[0163] 6. The electronic device is in a screen-off state, and the size of the data packet that the electronic device needs to transmit is less than or equal to a second preset threshold.

[0164] When the screen is off, electronic devices still send and receive data, such as downloading data or transmitting heartbeat packets. In order to meet the needs of low-speed Internet access, electronic devices can be identified from the dimension of the amount of data that the UE needs to transmit (i.e., the size of the data packet to be transmitted) in addition to the data transmission rate.

[0165] Specifically, when the electronic device is in the screen-off state, in order to meet the low network demand of the low network speed application scenario, the size of the data packet required to be transmitted by the electronic device can be detected to determine whether the electronic device is in a low network speed application scenario. Specifically, when the size of the data packet required to be transmitted by the electronic device is less than the second preset size threshold, the electronic device may consider that its own communication load is large and the network demand is high, and determine that the electronic device is not in a low network speed application scenario. On the contrary, it is considered that the communication load of the electronic device is small and the network demand is low, and it is determined that the electronic device is in a low network speed application scenario.

[0166] For example, take the application scenario of interactive heartbeat packets in low network speed application scenarios as an example. When the electronic device does not need to perform business communication, in order to maintain the communication connection between the electronic device and the network side, a heartbeat packet mechanism is usually used to maintain the connection between the electronic device and the network side. Specifically, the electronic device can periodically send a heartbeat packet to the network side to notify the electronic device that there is currently a communication connection with the network side to maintain a long connection between the electronic device and the network side. Correspondingly, after the network side receives the heartbeat packet, it can also return a response packet to the electronic device to notify the network side that there is a communication connection between the electronic device and the network side. In actual applications, the size of the heartbeat packet is very small, usually a few kb, or it can be an empty packet (that is, a data packet that does not carry any business data and only carries a header), etc. In this scenario, the electronic device is obviously in a low network speed application scenario.

[0167] 7. Turn off 5G network communication function of electronic devices.

[0168] The electronic device can shut down the 5G network communication function in response to receiving the user's input operation. In this scenario, the electronic device determines that the 5G network does not need to be used according to the user's needs. In this scenario, the electronic device is in a low network speed application scenario.

[0169] Figure 8 The network configuration of the overheating protection field in the UE auxiliary information and the UE auxiliary information reporting process of the electronic device are shown.

[0170] like Figure 8 As shown, when the electronic device on the UE side performs RRC connection reconfiguration (RRC connection reconfiguration) with the LTE access network (E-UTRAN) device, the LTE access network (E-UTRAN) device can send network reconfiguration information to the electronic device, wherein the network reconfiguration information includes overheating protection configuration (overheating setup) information.

[0171] The overheating setup information may be as follows:

[0172] "Overheating Assistance Config-r14 CHOICE{

[0173] release NULL,

[0174] setup SEQUENCE{

[0175] Overheating Indication Prohibit Timer-r14 ENUMERATED{s0, s0dot5, s1, s2, s5, s10, s20, s30, s60, s90, s120, s300, s600, spare3, spare2, spare1}

[0176] }

[0177] }OPTIONAL--Need ON”

[0178] The candidate value of the time interval for the electronic device to report overheating indicated in the above overheating setup information may be 0, 0.5 seconds, 1 second, 2 seconds, 5 seconds, 10 seconds, 20 seconds, 30 seconds, 60 seconds, 90 seconds, 120 seconds, 300 seconds, 600 seconds or other alternative values ​​(spare3, spare2 or spare1). Among them, it is optional for the electronic device to carry the overheating field in the UE auxiliary information reported by the electronic device, and the electronic device may add the overheating field to the reported UE auxiliary information when necessary.

[0179] It should be noted that the overheating setup information may be based on the 3GPP R14 protocol version, but is not limited to the 3GPP R14 protocol version, and may also be based on other protocol versions (for example, 3GPP R15 protocol version, 3GPP R16 protocol version, etc.).

[0180] After the network configuration is completed, the electronic device on the UE side can report the UE assistance information (UE Assistance Information) carrying the overheating field after completing the overheating setup with the LTE access network device. The information element content of the overheating field in the UE assistance information can be as follows:

[0181]

[0182] The overheating field of the above-mentioned UE auxiliary information may include a transmission rate level (reducedUE-Category) information element and a maximum number of auxiliary carriers (reducedMaxCCs) information element. Among them, the transmission rate level information element may include a downlink transmission rate level (reducedUE-CategoryDL) sub-information element and an uplink transmission rate level (reducedUE-CategoryUL) sub-information element. Among them, the value of the downlink transmission rate level (reducedUE-CategoryDL) sub-information element may be an integer from 0 to 19. The value of the uplink transmission rate level (reducedUE-CategoryUL) sub-information element may be an integer from 0 to 21. The maximum number of auxiliary carriers (reducedMaxCCs) information element may include a downlink auxiliary carrier number (reducedCCsDL) sub-information element and an uplink auxiliary carrier number (reducedCCsUL) sub-information element. The value of the downlink auxiliary carrier number (reducedCCsDL) sub-information element may be an integer from 0 to 31, and the value of the uplink auxiliary carrier number (reducedCCsUL) sub-information element may be an integer from 0 to 31.

[0183] When the value of the uplink auxiliary carrier number (reducedCCsUL) sub-element in the overheating field of the UE auxiliary information reported by the electronic device to the network side device is a, a is greater than or equal to 0. The network side device can activate a uplink auxiliary carrier for the electronic device. The electronic device can send data and an uplink reference signal on the physical uplink shared channel (physical uplink shared channel, PUSCH) on the activated a uplink auxiliary carrier. The electronic device may not send data or an uplink reference signal on the physical uplink shared channel (physical uplink shared channel, PUSCH) on other unactivated uplink auxiliary carriers.

[0184] It should be noted that the overheating field may be based on the 3rd generation partner project (3GPP) R14 or R15 protocol version, but is not limited to the 3GPP R14 or R15 protocol version, and may also be based on other versions of the protocol. In some protocol versions, the overheating field may only include the maximum number of auxiliary carriers (reducedMaxCCs) information element, and the maximum number of auxiliary carriers (reducedMaxCCs) information element may include the downlink auxiliary carrier number (reducedCCsDL) sub-information element and the uplink auxiliary carrier number (reducedCCsUL) sub-information element. In some protocol versions, the overheating field may also include other information elements.

[0185] A network connection method provided in an embodiment of the present application is introduced below.

[0186] In some network connection scenarios, the electronic device has disconnected the NR link and the single connection with the LTE access network device. If the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information cells uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-zero or the overheating field does not carry any sub-information cells. In this way, the electronic device can be switched from a single LTE connection to a dual LTE-NR connection in a timely manner without interrupting data services and without the risk of lost paging.

[0187] Fig. 9 FIG. 1 is a schematic diagram showing a network connection method provided by an embodiment of the present application. Fig. 9As shown, the electronic device (UE) 100 may include an application processor (AP) 101 and a baseband processor (BP) 102, and the baseband processor 102 may include a modem. The network side device 200 includes an LTE access network (E-UTRAN) device 201 and a 5G access network (NR) device 202. Among them, the LTE access network device 201 may refer to the MeNB in ​​the above embodiment, and the 5G access network (NR) device 202 may refer to the SgNB in ​​the above embodiment.

[0188] like Fig. 9 As shown, the network connection method may include:

[0189] S901 : The LTE access network device 201 sends a UE capability query request to the baseband processor 102 of the electronic device 100 .

[0190] S902: In response to the UE capability query request, the baseband processor 102 sends UE capability information to the LTE access network device 201. The UE capability information may be used to indicate that the electronic device 100 supports an overheating protection mechanism.

[0191] S903 . After receiving the UE capability information sent by the baseband processor 102 , the LTE access network device 201 may send network reconfiguration information to the baseband processor 102 , wherein the network reconfiguration information includes overheating protection configuration information.

[0192] Specifically, after receiving the UE capability information sent by the baseband processor 102, the LTE access network device 201 can determine that the electronic device 100 supports the overheating protection mechanism. Therefore, the LTE access network device 201 can send network reconfiguration information (e.g., RRC connection reconfiguration information) to the baseband processor 102 of the electronic device 100 on the signaling bearer SRB1 through a downlink dedicated control channel (download dedicated channel, DL_DCCH). After the baseband processor 102 receives the network reconfiguration information, it can obtain the overheating setup information from the network reconfiguration information and complete the overheating protection configuration. After executing the content in the network reconfiguration information, the baseband processor 102 can return the configuration completion information (e.g., RRC connection configuration completion (RRC connection reconfiguration complete) information) to the LTE access network device 201 on the signaling bearer SRB1 through an uplink dedicated control channel (upload dedicated channel, UL_DCCH).

[0193] In one possible implementation, when the electronic device 100 cannot complete the overheating setup in the network reconfiguration information, the electronic device 100 can initiate an RRC connection reestablishment process, reconnect the RRC connection with the LTE access network device 201, and complete the above-mentioned overheating protection configuration.

[0194] S904: After completing the overheat protection configuration, the application processor 101 may detect that the electronic device 100 needs to establish an LTE-NR dual connection.

[0195] Among them, the situation where the electronic device 100 needs to establish an LTE-NR dual connection can refer to the description of the high-speed scenario in the previous embodiment, which will not be repeated here.

[0196] S905. When the application processor 101 detects that the electronic device 100 needs to establish an NR link, it can send a first instruction to the baseband processor 102. The first instruction can be used to instruct the baseband processor 102 to establish an NR link with the network side device.

[0197] Specifically, the first instruction may be a private command message, such as an attention (AT) command message; the first instruction may also be a traditional command message, such as an at^syscfgex command message for establishing an NR link, or an at^errccap command message for restoring an NR link.

[0198] S906: The baseband processor 102 may respond to the first instruction and send first UE auxiliary information to the LTE access network device 201. The first UE auxiliary information includes an overheating field, and the number of uplink carriers of the sub-information cells carried in the overheating field is non-zero or does not carry any sub-information cells.

[0199] In one possible implementation, the overheating field of the first UE auxiliary information may include a transmission rate level (reducedUE-Category) information element and a maximum number of auxiliary carriers (reducedMaxCCs) information element. The transmission rate level information element may include a downlink transmission rate level (reducedUE-CategoryDL) sub-information element and an uplink transmission rate level (reducedUE-CategoryUL) sub-information element. The maximum number of auxiliary carriers (reducedMaxCCs) information element may include a downlink auxiliary carrier number (reducedCCsDL) sub-information element and an uplink auxiliary carrier number (reducedCCsUL) sub-information element. After receiving the first instruction, the baseband processor 102 may set the sub-information element uplink carrier number (reducedCCsUL) of the overheating field in the first UE auxiliary information to a first value, and the first value is not 0. For example, the baseband processor 102 can support two uplink auxiliary carriers. After receiving the first instruction, the baseband processor 102 can set the number of sub-element uplink auxiliary carriers (reducedCCsUL) in the overheating field in the first UE auxiliary information to 2, and send the first UE auxiliary information to the LTE access network device 201.

[0200] In a possible implementation, after receiving the first instruction, the baseband processor 102 may delete the sub-information element of the overheating field in the first UE auxiliary information (ie, the overheating field does not carry any sub-information element), and send the first UE auxiliary information to the LTE access network device 201.

[0201] S907. After receiving the first UE auxiliary information, the LTE access network device 201 can initiate a NR connection establishment process with the electronic device 100.

[0202] In one possible implementation, after receiving the first UE auxiliary information, the LTE access network 201 can parse from the first UE auxiliary information that the number of sub-cell uplink auxiliary carriers (reducedCCsUL) carried in the overheating field is not 0, then the LTE access network device 201 can initiate the NR connection establishment process between the 5G access network device and the electronic device 100.

[0203] In one possible implementation, after receiving the first UE auxiliary information, the LTE access network 201 can parse from the first UE auxiliary information that the overheating field does not carry any sub-information element, then the LTE access network device 201 can initiate the NR link establishment process between the 5G access network device and the electronic device 100.

[0204] Specifically, when the LTE access network device 201 parses the number of uplink auxiliary carriers (reducedCCsUL) of the sub-information element carried in the overheating field from the first UE auxiliary information and finds that it is not 0 or the overheating field does not carry any sub-information element, the LTE access network device 201 can send measurement signaling (for example, B1 event measurement signaling) to the electronic device 100. The baseband processor 102 of the electronic device 100 can respond to the measurement signaling, measure multiple 5G cells, and report the measurement report (measurement report) (for example, B1 event measurement report) of the 5G cell that meets the conditions to the LTE access network device 201. For example, the condition can be that the signal strength of the cell measured by the electronic device 100 meets the specified threshold, etc., and the LTE access network device 201 can send the measurement report of the 5G cell that meets the conditions to the 5G access network device 202. The 5G access network device 202 can configure a 5G cell for the electronic device 100 according to the measurement report, and send the 5G cell configuration information to the electronic device 100 through the LTE access network device 201. For example, the 5G cell configuration information may be RRC connection reconfiguration information, which is used to configure the 5G cell accessed by the electronic device 100, and may also be recorded as NR SCG configuration (SCG configuration). The electronic device 100 may access the 5G cell configured for the electronic device 100 by the 5G access network device 202 according to the 5G cell configuration information to complete the establishment of the NR link.

[0205] A network connection method provided in another embodiment of the present application is introduced below.

[0206] In some network connection scenarios, when an electronic device has established an LTE-NR dual connection, if the electronic device detects that the NR link needs to be released, the electronic device can trigger the network side to release the NR link by reporting SCGfailure signaling to the network side. When the NR link has been disconnected and a single connection with the LTE access network device is established, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-zero or the overheating field does not carry any sub-information elements. In this way, the electronic device can be switched from a LTE single connection to a LTE-NR dual connection in a timely manner without interrupting data services, reducing the risk of lost paging.

[0207] Fig.10 FIG. 1 is a schematic diagram showing a network connection method provided by another embodiment of the present application. Fig.10 As shown, the electronic device (UE) 100 may include an application processor (AP) 101 and a baseband processor (BP) 102, and the baseband processor 102 may include a modem. The network side device 200 includes an LTE access network (E-UTRAN) device 201 and a 5G access network (NR) device 202. Among them, the LTE access network device 201 may refer to the MeNB in ​​the above embodiment, and the 5G access network (NR) device 202 may refer to the SgNB in ​​the above embodiment.

[0208] like Fig.10 As shown, the network connection method may include:

[0209] S1001 : The LTE access network device 201 sends a UE capability query request to the baseband processor 102 of the electronic device 100 .

[0210] S1002: In response to the UE capability query request, the baseband processor 102 sends UE capability information to the LTE access network device 201. The UE capability information may be used to indicate that the electronic device 100 supports an overheating protection mechanism.

[0211] S1003 . After receiving the UE capability information sent by the baseband processor 102 , the LTE access network device 201 may send network reconfiguration information to the baseband processor 102 , wherein the network reconfiguration information includes overheating protection configuration information.

[0212] For details, please refer to the above Fig. 9 Step S903 in the illustrated embodiment will not be described in detail here.

[0213] S1004. The LTE access network device 201 initiates the NR link establishment process.

[0214] Among them, the LTE access network device 201 can actively initiate the NR link establishment process. For example, when the LTE access network device 201 determines that the addition interval of the NR SCG exceeds the specified time, the LTE access network device 201 can send measurement signaling (for example, B1 event measurement signaling) to the electronic device 100. The baseband processor 102 of the electronic device 100 can respond to the measurement signaling, measure the multiple 5G cells, and report the measurement report (measurementreport) (for example, B1 event measurement report) of the 5G cell that meets the conditions to the LTE access network device 201. For example, the condition can be that the signal strength of the cell measured by the electronic device 100 meets the specified threshold, etc., and the LTE access network device 201 can send the measurement report of the 5G cell that meets the conditions to the 5G access network device 202. The 5G access network device 202 can configure a 5G cell for the electronic device 100 according to the measurement report, and send the 5G cell configuration information to the electronic device 100 through the LTE access network device 201. For example, the 5G cell configuration information may be RRC connection reconfiguration information, which is used to configure the 5G cell accessed by the electronic device 100, and may also be recorded as NR SCG configuration (SCG configuration). The electronic device 100 may access the 5G cell configured for the electronic device 100 by the 5G access network device 202 according to the 5G cell configuration information to complete the establishment of the NR link.

[0215] S1005. The application processor 101 of the electronic device 100 detects that the electronic device 100 needs to release the NR link.

[0216] Among them, the situation where the electronic device 100 needs to release the NR link can refer to the description of the low network speed scenario in the previous embodiment, which will not be repeated here.

[0217] S1006. When the application processor 101 detects that the NR link needs to be released, the application processor 101 may send a second instruction to the baseband processor 102, where the second instruction may be used to instruct the baseband processor 102 to release the NR link.

[0218] Specifically, the second instruction may be a private command message, such as an attention (AT) command message; the second instruction may also be a traditional command message, such as an at^syscfgex command message for removing NR capability, or an aterrccap command message for releasing an NR link.

[0219] S1007. The baseband processor 102 may send a secondary cell group failure (SCG failure) signaling to the LTE access network device 201 in response to the second instruction, triggering the LTE access network device 201 to release the NR link.

[0220] The SCG failure signaling is specifically used to release the wireless resources occupied by the NR connection on the network side, such as the wireless resources related to each functional layer (such as NR PDCP, NR RLC, NR MAC and NR PHY) contained in the SCG link used for NR connection communication. Taking the release of NR PHY-related wireless resources as an example, the downlink receiving channel, frequency, cell identification ID and other information can be released.

[0221] The SCG failure signaling may be specified differently 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. The failure type includes any one or a combination of multiple parameters in the following: timer delay (i.e., the delay for UE and network side to support data transmission), random access problem randomAccessProblem, maximum number of RLC retransmissions rlc-MaxNumRetx (the maximum number of times RLC is allowed to retransmit data packets), SCG link change failure scg-ChangeFailure (i.e., SCG link switching is not supported), etc.

[0222] S1008. In response to the SCG failure signaling, the LTE access network device 201 initiates the NR link release process.

[0223] Specifically, the LTE access network device 201 can respond to the received SCG failure signaling and instruct the 5G access network device 202 to release the wireless resources occupied by the electronic device 100 when accessing the 5G access network device 202, such as the wireless resources related to each functional layer (such as NR PDCP, NR RLC, NR MAC and NR PHY) contained in the SCG link used for NR connection communication. Taking the release of NR PHY-related wireless resources as an example, the downlink receiving channel, frequency, cell identification ID and other information can be released.

[0224] S1009. The baseband processor 102 releases the NR link and turns off the NR measurement.

[0225] Specifically, after the 5G access network device 202 releases the wireless resources occupied by the electronic device 100, the LTE access network device 201 can notify the baseband processor 102 of the electronic device 100 to release the wireless resources occupied on the UE side when the NR link is configured, such as releasing the wireless resources related to the transmission function layer such as NR PDCP, NR RLC, NR MAC and NR PHY, etc. Specifically, it can release the relevant configuration parameters involved in the configuration of the NR connection on the network side, such as frequency, cell identification and other parameters.

[0226] After the baseband processor 202 releases the NR link, the baseband processor 202 may not perform NR measurement. Accordingly, the network side cannot receive the NR measurement report sent by the UE side.

[0227] In a possible implementation, after the baseband processor 202 releases the NR link, the baseband processor 202 performs NR measurement, but does not report the NR measurement report to the LTE access device 202.

[0228] S1010. The application processor 101 detects that the electronic device 100 needs to establish an LTE-NR dual connection.

[0229] Among them, the situation where the electronic device 100 needs to establish an LTE-NR dual connection can refer to the description of the high-speed scenario in the previous embodiment, which will not be repeated here.

[0230] S1011. When the application processor 101 detects that an LTE-NR dual connection needs to be established, the application processor 101 may send a first instruction to the baseband processor 102. The first instruction may be used to instruct the baseband processor 102 to establish an NR link with the network side device.

[0231] Specifically, the first instruction may be a private command message, such as an attention (AT) command message; the first instruction may also be a traditional command message, such as an at^syscfgex command message for establishing an NR link, or an at^errccap command message for restoring an NR link.

[0232] S1012. The baseband processor 102 may turn on NR measurement in response to the first instruction.

[0233] Specifically, the baseband processor 102 can measure multiple 5G cells in which the electronic device 100 is located in response to the first instruction.

[0234] S1013: The baseband processor 102 may send first UE auxiliary information to the LTE access network device 201. The first UE auxiliary information includes an overheating field, and the number of sub-information cells uplink carriers (reducedCCsUL) carried in the overheating field is non-zero or does not carry any sub-information cells.

[0235] For details, please refer to the above Fig. 9 Step S906 in the illustrated embodiment will not be described in detail here.

[0236] S1014. After receiving the first UE auxiliary information, the LTE access network device 201 can initiate a NR connection establishment process with the electronic device 100.

[0237] For details, please refer to the above Fig. 9 Step S907 in the illustrated embodiment will not be described in detail here.

[0238] In some network connection scenarios, when an electronic device has established an LTE-NR dual connection, if the electronic device detects that the NR link needs to be released, the electronic device can trigger the network side to release the NR link by reporting the second UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the second UE auxiliary information is 0. When the NR link has been disconnected and a single connection with the LTE access network device is established, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-0 or the overheating field does not carry any sub-information elements. In this way, the electronic device can be switched from a single LTE connection to a dual LTE-NR connection in a timely manner without interrupting data services, reducing the risk of lost paging.

[0239] Fig.11 FIG. 1 is a schematic diagram showing a network connection method provided by another embodiment of the present application. Fig.11As shown, the electronic device (UE) 100 may include an application processor (AP) 101 and a baseband processor (BP) 102, and the baseband processor 102 may include a modem. The network side device 200 includes an LTE access network (E-UTRAN) device 201 and a 5G access network (NR) device 202. Among them, the LTE access network device 201 may refer to the MeNB in ​​the above embodiment, and the 5G access network (NR) device 202 may refer to the SgNB in ​​the above embodiment.

[0240] like Fig.11 As shown, the electronic device (UE) 100 may include an application processor (AP) 101 and a baseband processor (BP) 102, and the baseband processor 102 may include a modem. The network side device 200 includes an LTE access network (E-UTRAN) device 201 and a 5G access network (NR) device 202. Among them, the LTE access network device 201 may refer to the MeNB in ​​the above embodiment, and the 5G access network (NR) device 202 may refer to the SgNB in ​​the above embodiment.

[0241] like Fig.11 As shown, the network connection method may include:

[0242] S1101 : The LTE access network device 201 sends a UE capability query request to the baseband processor 102 of the electronic device 100 .

[0243] S1102: In response to the UE capability query request, the baseband processor 102 sends UE capability information to the LTE access network device 201. The UE capability information may be used to indicate that the electronic device 100 supports an overheating protection mechanism.

[0244] S1103 . After receiving the UE capability information sent by the baseband processor 102 , the LTE access network device 201 may send network reconfiguration information to the baseband processor 102 , wherein the network reconfiguration information includes overheating protection configuration information.

[0245] For details, please refer to the above Fig. 9 Step S903 in the illustrated embodiment will not be described in detail here.

[0246] S1104. The LTE access network device 201 initiates the NR link establishment process.

[0247] For details, please refer to the above Fig.10 Step S1004 in the illustrated embodiment will not be described in detail here.

[0248] S1105. The application processor 101 of the electronic device 100 detects that the NR link needs to be released.

[0249] Among them, the situation where the electronic device 100 needs to release the NR link can refer to the description of the low network speed scenario in the previous embodiment, which will not be repeated here.

[0250] S1106. When the application processor 101 detects that the NR link needs to be released, it can send a second instruction to the baseband processor 102, and the second instruction can be used to instruct the baseband processor 102 to release the NR link.

[0251] Specifically, the second instruction may be a private command message, such as an attention (AT) command message; the second instruction may also be a traditional command message, such as an at^syscfgex command message for removing NR capability, or an aterrccap command message for releasing an NR link.

[0252] S1107: The baseband processor 102 may send second UE auxiliary information to the LTE access network device 201 in response to the second instruction. The number of sub-cell uplink auxiliary carriers (reducedCCsUL) carried in the overheating field in the second UE auxiliary information is 0.

[0253] The overheating field of the second UE auxiliary information may include a transmission rate level (reducedUE-Category) information element and a maximum number of auxiliary carriers (reducedMaxCCs) information element. Among them, the transmission rate level information element may include a downlink transmission rate level (reducedUE-CategoryDL) sub-information element and an uplink transmission rate level (reducedUE-CategoryUL) sub-information element. The maximum number of auxiliary carriers (reducedMaxCCs) information element may include a downlink auxiliary carrier number (reducedCCsDL) sub-information element and an uplink auxiliary carrier number (reducedCCsUL) sub-information element. After receiving the second instruction, the baseband processor 102 may set the uplink auxiliary carrier number (reducedCCsUL) sub-information element of the overheating field in the first UE auxiliary information to 0. For example, even if the baseband processor 102 can support two uplink auxiliary carriers, after receiving the second instruction, the baseband processor 102 will set the number of sub-element uplink auxiliary carriers (reducedCCsUL) in the overheating field in the second UE auxiliary information to 0, and send the second UE auxiliary information to the LTE access network device 201.

[0254] S1108. The LTE access network device 201 can initiate an NR link release process in response to the second UE auxiliary information.

[0255] Specifically, after receiving the second UE auxiliary information sent by the electronic device 100, the LTE access network device 201 can parse out from the second UE auxiliary information that the number of uplink carriers (reducedCCsUL) of the sub-element of the overheating field is 0. The LTE access network device 201 can send NR release signaling to the 5G access network device 202 in response to the received second auxiliary information. The NR release signaling can be used to instruct the 5G access network device 202 to release the wireless resources occupied by the electronic device 100 when accessing the 5G access network device 202, such as the wireless resources related to each functional layer (such as NR PDCP, NR RLC, NR MAC and NR PHY) contained in the SCG link used for NR connection communication. Taking the release of wireless resources related to NR PHY as an example, the downlink receiving channel, frequency point, cell identification ID and other information can be released.

[0256] S1109. The baseband processor 102 releases the NR link and turns off the NR measurement.

[0257] Specifically, after the 5G access network device 202 releases the wireless resources occupied by the electronic device 100, the LTE access network device 201 can notify the baseband processor 102 of the electronic device 100 to release the wireless resources occupied on the UE side when the NR link is configured, such as releasing the wireless resources related to the transmission function layer such as NR PDCP, NR RLC, NR MAC and NR PHY, etc. Specifically, it can release the relevant configuration parameters involved in the configuration of the NR connection on the network side, such as frequency, cell identification and other parameters.

[0258] After the baseband processor 202 releases the NR link, the baseband processor 202 may not perform NR measurement. Accordingly, the network side cannot receive the NR measurement report sent by the UE side.

[0259] In a possible implementation, after the baseband processor 202 releases the NR link, the baseband processor 202 performs NR measurement, but does not report the NR measurement report to the LTE access device 202.

[0260] S1110. The application processor 101 detects that the electronic device 100 needs to establish an LTE-NR dual connection.

[0261] Among them, the situation where the electronic device 100 needs to establish an LTE-NR dual connection can refer to the description of the high-speed scenario in the previous embodiment, which will not be repeated here.

[0262] S1111. When the application processor 101 detects that the electronic device 100 needs to establish an LTE-NR dual connection, it can send a first instruction to the baseband processor 102. The first instruction can be used to instruct the baseband processor 102 to establish an NR link with the network side device.

[0263] Specifically, the first instruction may be a private command message, such as an attention (AT) command message; the first instruction may also be a traditional command message, such as an at^syscfgex command message for opening an NR connection, or an at^errccap command for restoring an NR link.

[0264] S1112. The baseband processor 102 may start NR measurement.

[0265] Specifically, the baseband processor 102 can measure multiple 5G cells in which the electronic device 100 is located in response to the first instruction.

[0266] S1113: The baseband processor 102 may send first UE assistance information to the LTE access network device 201. The first UE assistance information includes an overheating field, and the number of sub-cell uplink auxiliary carriers (reducedCCsUL) carried in the overheating field is non-zero or does not carry any sub-cell.

[0267] For details, please refer to the above Fig. 9 Step S906 in the illustrated embodiment will not be described in detail here.

[0268] S1114. After receiving the first UE auxiliary information, the LTE access network device 201 can initiate a NR connection establishment process with the electronic device 100.

[0269] For details, please refer to the signature Fig. 9 Step S907 in the illustrated embodiment will not be described in detail here.

[0270] In some network connection scenarios, when the electronic device has disconnected the RRC connection with the network side, if the electronic device detects that the NR link is not needed, when the electronic device resumes establishing the RRC connection, the electronic device can turn off the NR measurement and send the second UE auxiliary information to the network side, instructing the network side not to trigger the establishment of the NR link. Afterwards, if the electronic device detects that an LTE-NR dual connection needs to be established, the electronic device can trigger the network side to quickly establish an NR link with the electronic device by reporting the first UE auxiliary information to the network side. Among them, the number of sub-information elements uplink carriers (reducedCCsUL) carried by the overheating field in the first UE auxiliary information is non-zero or the overheating field does not carry any sub-information elements. In this way, when the electronic device detects the release of the NR link, the network side can no longer trigger the establishment of an NR link with the electronic device; when the electronic device detects the establishment of an LTE-NR dual connection, it can switch from a single LTE connection to a dual LTE-NR connection in a timely manner without interrupting data services, thereby reducing the risk of lost paging.

[0271] Fig.12 FIG. 1 is a schematic diagram showing a network connection method provided by another embodiment of the present application. Fig.12 As shown, the electronic device (UE) 100 may include an application processor (AP) 101 and a baseband processor (BP) 102, and the baseband processor 102 may include a modem. The network side device 200 includes an LTE access network (E-UTRAN) device 201 and a 5G access network (NR) device 202. Among them, the LTE access network device 201 may refer to the MeNB in ​​the above embodiment, and the 5G access network (NR) device 202 may refer to the SgNB in ​​the above embodiment.

[0272] like Fig.12 As shown, the electronic device (UE) 100 may include an application processor (AP) 101 and a baseband processor (BP) 102, and the baseband processor 102 may include a modem. The network side device 200 includes an LTE access network (E-UTRAN) device 201 and a 5G access network (NR) device 202. Among them, the LTE access network device 201 may refer to the MeNB in ​​the above embodiment, and the 5G access network (NR) device 202 may refer to the SgNB in ​​the above embodiment.

[0273] like Fig.12 As shown, the network connection method may include:

[0274] S1201 : The LTE access network device 201 sends a UE capability query request to the baseband processor 102 of the electronic device 100 .

[0275] S1202: In response to the UE capability query request, the baseband processor 102 sends UE capability information to the LTE access network device 201. The UE capability information may be used to indicate that the electronic device 100 supports an overheating protection mechanism.

[0276] S1203 : The application processor 201 detects that the electronic device 100 has no data service.

[0277] Among them, the electronic device 100 having no data service may include any of the following: 1. The mobile data function of the electronic device 100 is turned off; 2. The electronic device 100 has no data service for a period of time (for example, 60s); 3. There is no application running on the electronic device 100, and so on.

[0278] S1204: When the application processor 201 detects that the electronic device 100 has no data service, it sends a third instruction to the baseband processor 102. The third instruction is used to instruct the baseband processor 102 to disconnect the RRC connection with the network side device 200.

[0279] Specifically, the third instruction may be a private command message, such as an attention (AT) command message; the third instruction may also be a traditional command message, such as an at^syscfgex command message for disconnecting the RRC connection, or an at^errccap command message for disconnecting the RRC connection, and the like.

[0280] In one possible case, before the electronic device 100 releases the RRC connection, the electronic device 100 is in LTE-NR dual connection with the network side device 200. In another possible case, before the network side device 200 releases the RRC connection with the electronic device 100, the electronic device 100 is in LTE single connection with the network side device 200.

[0281] S1205. The baseband processor 102 triggers the disconnection of the RRC connection with the network side device 200 in response to the third instruction.

[0282] In a possible implementation, when the network-side device 200 detects that the electronic device 100 has no data service, the network-side device 200 may trigger the release of the RRC connection with the electronic device 100 .

[0283] In a possible implementation, when the application processor 201 detects that the electronic device 100 has no data service, it sends a third instruction to the baseband processor 102. The baseband processor 102 may send an RRC release request to the network side device 200 in response to the third instruction. After receiving the RRC release request, the network side device 200 may respond to the RRC release request to trigger the release of the RRC connection between the network side device 200 and the electronic device 100.

[0284] After the baseband processor 102 disconnects the RRC connection with the network side device, the electronic device 100 enters an idle state.

[0285] S1206. The application processor 101 of the electronic device 100 detects that the NR link needs to be released.

[0286] Among them, the situation where the electronic device 100 needs to release the NR link can refer to the description of the low network speed scenario in the previous embodiment, which will not be repeated here.

[0287] S1207. When the application processor 101 detects that the NR link needs to be released, it may send a second instruction to the baseband processor 102. The second instruction may be used to instruct the baseband processor 102 to release the NR link.

[0288] Specifically, the second instruction may be a private command message, such as an attention (AT) command message; the second instruction may also be a traditional command message, such as an at^syscfgex command message for removing NR capability, or an at^errccap command message for releasing an NR link.

[0289] S1208 : The application processor 201 detects that the electronic device 100 has a data service.

[0290] The electronic device 100 having no data service may include any of the following: 1. The mobile data function of the electronic device 100 is turned on; 2. The mobile data function of the electronic device 100 is turned on and the electronic device 100 has no data service for a period of time (for example, 60 seconds); 3. The mobile data function of the electronic device 100 is turned on and there is an application running on the electronic device 100, etc.

[0291] S1209: When the application processor 201 detects that the electronic device 100 has no data service, it sends a fourth instruction to the baseband processor 102. The fourth instruction is used to instruct the baseband processor 102 to establish an RRC connection with the network side device 200.

[0292] Specifically, the fourth instruction may be a private command message, such as an attention (AT) command message; the fourth instruction may also be a traditional command message, such as an at^syscfgex command message for establishing an RRC connection, or an at^errccap command message for establishing an RRC connection.

[0293] S1210 : The baseband processor 102 establishes an RRC connection with the network side device 200 in response to the fourth instruction.

[0294] S1211. After the baseband processor 102 establishes an RRC connection with the network side device 200, network reconfiguration information may be sent to the baseband processor 102, wherein the network reconfiguration information includes overheating protection configuration (overheating setup) information.

[0295] For details, please refer to the above Fig. 9 Step S903 in the illustrated embodiment will not be described in detail here.

[0296] S1212: The baseband processor 102 may turn off NR measurement and send second UE auxiliary information to the LTE access network device 201. The number of sub-cell uplink carriers (reducedCCsUL) carried in the overheating field in the second UE auxiliary information is 0.

[0297] Because the baseband processor 102 receives the second instruction sent by the application processor 101 before establishing the RRC connection with the network side device 200, and the second instruction is used to instruct the baseband processor 102 to release the NR link. Therefore, after establishing the RRC connection with the network side device 200, the baseband processor 102 can turn off the NR measurement and send the second UE auxiliary information to the LTE access network device 201.

[0298] The overheating field of the second UE auxiliary information may include a transmission rate level (reducedUE-Category) information element and a maximum number of carriers (reducedMaxCCs) information element. Among them, the transmission rate level information element may include a downlink transmission rate level (reducedUE-CategoryDL) sub-information element and an uplink transmission rate level (reducedUE-CategoryUL) sub-information element. The maximum number of carriers (reducedMaxCCs) information element may include a downlink carrier number (reducedCCsDL) sub-information element and an uplink carrier number (reducedCCsUL) sub-information element. After receiving the second instruction, the baseband processor 102 may set the uplink carrier number (reducedCCsUL) sub-information element of the overheating field in the first UE auxiliary information to 0. For example, even if the baseband processor 102 can measure 2 uplink carrier numbers, after receiving the second instruction, the baseband processor 102 will set the sub-element uplink carrier number (reducedCCsUL) of the overheating field in the second UE auxiliary information to 0, and send the second UE auxiliary information to the LTE access network device 201.

[0299] S1213. After receiving the second UE auxiliary information, the LTE access network device 201 does not initiate the NR link establishment process and does not configure NR measurement for the electronic device 100.

[0300] In this way, after receiving the second UE auxiliary information, the network side device 200 may no longer attempt to establish a NR link with the electronic device 100, thereby saving network resources and preventing the network side device 200 from actively establishing a NR link with the electronic device 100.

[0301] S1214. The application processor 101 detects that the electronic device 100 needs to establish an LTE-NR dual connection.

[0302] Among them, the situation where the electronic device 100 needs to establish an LTE-NR dual connection can refer to the description of the high-speed scenario in the previous embodiment, which will not be repeated here.

[0303] S1215. When the application processor 101 detects that the electronic device 100 needs to establish an LTE-NR dual connection, the application processor 101 can send a first instruction to the baseband processor 102, and the first instruction can be used to instruct the baseband processor 102 to restore the NR link.

[0304] Specifically, the first instruction may be a private command message, such as an attention (AT) command message; the first instruction may also be a traditional command message, such as an at^syscfgex command message for opening an NR connection, an at^errccap command message for restoring an NR link, etc.

[0305] S1216. The baseband processor 102 may start NR measurement.

[0306] Specifically, the baseband processor 102 can measure multiple 5G cells in which the electronic device 100 is located in response to the first instruction.

[0307] S1217: The baseband processor 102 may send first UE assistance information to the LTE access network device 201. The first UE assistance information includes an overheating field, and the number of sub-cell uplink auxiliary carriers (reducedCCsUL) carried in the overheating field is non-zero or does not carry any sub-cell.

[0308] For details, please refer to the above Fig. 9 Step S906 in the illustrated embodiment will not be described in detail here.

[0309] S1218. After receiving the first UE auxiliary information, the LTE access network device 201 can initiate a NR connection establishment process with the electronic device 100.

[0310] For details, please refer to the signature Fig. 9 Step S907 in the illustrated embodiment will not be described in detail here.

[0311] It should be noted that in the above embodiments of the present application, the baseband processor 102 may also instruct the network side device 200 to release the NR link or instruct the network side device 200 to establish an LTE-NR dual connection through other signaling.

[0312] In one possible implementation, the baseband processor 102 may also instruct the network side device 200 to release the NR link or instruct the network side device 200 to establish an LTE-NR dual connection through the maximum carrier (maxCC) field in the UE auxiliary information.

[0313] The UE assistance information may be different in different protocol versions. For example, in the R16 protocol version, the information element content of the UE assistance information with the maxCC field may be as follows:

[0314]

[0315] The above-mentioned UE auxiliary information may include the maximum number of secondary carriers (maxCC) field and other fields, such as the idc field, the discontinuous reception (drx) field, the maximum bandwidth (maxBW) field, the maximum MIMO number (maxMIMO) field, the minSchedulingOffset field, the release field, and the sl-UE-Assistance InformationNR field. Among them, the "preference" in the maxCC field name indicates that the maxCC field can be a preference setting on the UE side, and the network side is not required to accept the secondary carrier setting indicated by the maxCC field. For example, after receiving the UE auxiliary information, the network side can set the corresponding secondary carrier for the UE side according to the number of secondary carriers indicated by the maxCC field, or ignore the maxCC field.

[0316] The information element content of the overheating field in the UE assistance information may be as follows:

[0317] "MaxCC-preference-r16::=SEQUENCE{

[0318] reducedCCsDL-r16INTEGER{0..31},

[0319] reducedCCsUL-r16 INTEGER{0..31},

[0320] }”

[0321] The maxCC field of the above UE auxiliary information may include a downlink auxiliary carrier number (reducedCCsDL) sub-information element and an uplink auxiliary carrier number (reducedCCsUL) sub-information element. The value of the downlink auxiliary carrier number (reducedCCsDL) sub-information element may be an integer from 0 to 31, and the value of the uplink auxiliary carrier number (reducedCCsUL) sub-information element may be an integer from 0 to 31.

[0322] It should be noted that the maxCC field may be based on the 3GPP R16 protocol version, but is not limited to the 3GPP R16 protocol version, and may also be based on other version protocols.

[0323] When the value of the uplink auxiliary carrier number (reducedCCsUL) sub-element in the maxCC field in the UE auxiliary information reported by the electronic device to the network side device is a, a is greater than or equal to 0. The network side device can activate a uplink auxiliary carrier for the electronic device. The electronic device can send data and an uplink reference signal on the physical uplink shared channel (physical uplink shared channel, PUSCH) on the activated a uplink auxiliary carrier. The electronic device may not send data or an uplink reference signal on the physical uplink shared channel (physical uplink shared channel, PUSCH) on other unactivated uplink auxiliary carriers.

[0324] Exemplarily, when the application processor 101 detects that the electronic device 100 needs to establish an LTE-NR dual connection, the application processor 101 may send a first instruction to the baseband processor 102, and the first instruction may be used to instruct the baseband processor 102 to establish an NR link with the network side device 200. The baseband processor 102 may send third UE auxiliary information to the network side device 200 in response to the first instruction. The number of sub-information elements uplink carriers (reducedCCsUL) of the maxCC field in the third UE auxiliary information is non-zero, or the third UE auxiliary information does not carry any sub-information elements.

[0325] When the application processor 101 detects that the electronic device 100 needs to release the NR link, the application processor 101 may send a second instruction to the baseband processor 102, and the second instruction may be used to instruct the baseband processor 102 to release the NR link established with the network side device 200. In response to the second instruction, the baseband processor 102 may send fourth UE auxiliary information to the network side device 200. The number of sub-information element uplink carriers (reducedCCsUL) of the maxCC field in the fourth UE auxiliary information is 0.

[0326] In a possible implementation, the baseband processor 102 may also instruct the network side device 200 to release the NR link or to establish an LTE-NR dual connection by setting a special field in the UE auxiliary information. The special field occupies one bit.

[0327] Exemplarily, when the value of the special field in the UE auxiliary information is 1, the UE auxiliary information can be used to instruct the network side device 200 to establish an LTE-NR dual connection. When the value of the special field in the UE auxiliary information is 0, the UE auxiliary information can be used to instruct the network side device 200 to release the NR link.

[0328] In a possible implementation, the baseband processor 102 may also instruct the network side device 200 to release the NR link or instruct the network side device 200 to establish an LTE-NR dual connection through other RRC signaling.

[0329] The following is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of the present application.

[0330] Fig.13 A schematic structural diagram of an electronic device 100 is shown.

[0331] The following is a detailed description of the embodiment using the electronic device 100 as an example. It should be understood that: Fig.13 The electronic device 100 shown is only an example, and the electronic device 100 may have more Fig.13 More or fewer components may be shown, two or more components may be combined, or there may be a different configuration of components. Fig.13 The various components shown in the EMBODIMENTS 2000 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated circuits.

[0332] The electronic device 100 may include: a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc. The sensor module 180 may include one or more of a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

[0333] It is to be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figure, or combine some components, or separate some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0334] The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0335] The controller may be the nerve center and command center of the electronic device 100. The controller may generate an operation control signal according to the instruction operation code and the timing signal to complete the control of fetching and executing instructions.

[0336] The processor 110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may store instructions or data that the processor 110 has just used or cyclically used. If the processor 110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 110, and thus improves the efficiency of the system.

[0337] In some embodiments, the processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0338] The charging management module 140 is used to receive charging input from a charger.

[0339] The wireless communication function of the electronic device 100 can be implemented through the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor and the baseband processor.

[0340] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve the utilization of antennas. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In some other embodiments, the antenna can be used in combination with a tuning switch.

[0341] The mobile communication module 150 can provide solutions for wireless communications including 2G / 3G / 4G / 5G, etc., applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the same device as at least some of the modules of the processor 110.

[0342] The modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low-frequency baseband signal to be sent into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to a speaker 170A, a receiver 170B, etc.), or displays an image or video through a display screen 194. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 110 and be set in the same device as the mobile communication module 150 or other functional modules.

[0343] The wireless communication module 160 can provide wireless communication solutions including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR), etc., which are applied to the electronic device 100. The wireless communication module 160 can be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the frequency of the electromagnetic wave signal and performs filtering, and sends the processed signal to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, modulate the frequency of it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2.

[0344] In some embodiments, the antenna 1 of the electronic device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology. The GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS) and / or a satellite based augmentation system (SBAS).

[0345] The electronic device 100 implements the display function through a GPU, a display screen 194, and an application processor. The GPU is a microprocessor for image processing, which connects the display screen 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 that execute program instructions to generate or change display information.

[0346] The display screen 194 is used to display images, videos, etc. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, a quantum dot light-emitting diode (QLED), etc. In some embodiments, the electronic device 100 may include 1 or N display screens 194, where N is a positive integer greater than 1.

[0347] The electronic device 100 can realize the shooting function through ISP, camera 193, video codec, GPU, display screen 194 and application processor.

[0348] The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 100. The internal memory 121 can be used to store computer executable program codes, which include instructions. The processor 110 executes various functional applications and data processing of the electronic device 100 by running the instructions stored in the internal memory 121. The internal memory 121 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area may store data created during the use of the electronic device 100 (such as audio data, a phone book, etc.), etc. In addition, 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 disk storage device, a flash memory device, a universal flash storage (UFS), etc.

[0349] The electronic device 100 can implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor. The audio module 170 is used to convert digital audio information into an analog audio signal output, and is also used to convert analog audio input into a digital audio signal. The speaker 170A, also known as a "speaker", is used to convert an audio electrical signal into a sound signal. The electronic device 100 can listen to music or listen to a hands-free call through the speaker 170A. The receiver 170B, also known as a "earpiece", is used to convert an audio electrical signal into a sound signal. The microphone 170C, also known as a "microphone" or a "microphone", is used to convert a sound signal into an electrical signal. The earphone interface 170D is used to connect a wired headset. The pressure sensor 180A is used to sense a pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A can be set on the display screen 194. The gyroscope sensor 180B can be used to determine the motion posture of the electronic device 100. The air pressure sensor 180C is used to measure air pressure. The magnetic sensor 180D includes a Hall sensor. The acceleration sensor 180E can detect the magnitude of the acceleration of the electronic device 100 in various directions (generally three axes). The distance sensor 180F is used to measure the distance. The electronic device 100 can measure the distance by infrared or laser. The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The ambient light sensor 180L is used to sense the brightness of the ambient light. The fingerprint sensor 180H is used to collect fingerprints. The temperature sensor 180J is used to detect the temperature. The touch sensor 180K, also known as a "touch panel". The touch sensor 180K can be set on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also known as a "touch screen". The touch sensor 180K is used to detect a touch operation 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. Visual output related to the touch operation can be provided through the display screen 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100, which is different from the position of the display screen 194. The bone conduction sensor 180M may obtain a vibration signal. The button 190 includes a power button, a volume button, etc. The motor 191 may generate a vibration prompt. The indicator 192 may be an indicator light, which may be used to indicate the charging status, the change in power, or may be used to indicate messages, missed calls, notifications, etc. The SIM card interface 195 is used to connect a SIM card.

[0350] Fig.14A chip system 1400 provided in an embodiment of the present application is shown, wherein the chip system 1400 may include an application processor (application processor, AP) 101 and a baseband processor (baseband processor, BP) 102.

[0351] In practical applications, the software supported by the application processor 101 usually includes an operating system, a user interface, and application programs, etc. The baseband processor 102 can be regarded as a wireless modulation and demodulation modem module, which is responsible for coordinating and controlling the communication between 102 and the base station 101, and the software supported by it includes the communication control software of the baseband modem, etc.

[0352] The application processor 101 and the baseband processor 102 support mutual communication by using a preset interface technology, which can be customized by the system, for example, including but 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. Specifically, the application processor and the baseband processor can communicate with each other in the form of messages through control commands to complete functions such as calls, short messages, and mobile Internet access. The control command may include a traditional AT (attention) command, a mobile broadband interface model (MBIM) command, or other protocol commands that support mutual transmission between 101 and 102.

[0353] The baseband processor 102 supports running protocol software related to the non-access NAS layer and the radio resource control RRC layer. In actual applications, the application processor 101 supports communication with the NAS layer and the RRC layer in the baseband processor 102. For example, in this application, the application processor 101 can use traditional AT commands to send corresponding signaling messages to the NAS layer to notify the NAS layer of information such as the application status or device screen status currently known by 101.

[0354] The method flow executed by the application processor 101 and the baseband processor 102 in the embodiment of the present application can refer to the aforementioned Figure 9-12 The method embodiments shown will not be described in detail here.

[0355] In practical applications, the chip system 1400 generally refers to a highly complex system chip, such as a SOC chip. In actual deployment, it can be deployed inside 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 a user equipment UE or a terminal device, for example, it may specifically include a smart phone, a mobile internet device (MID), a wearable smart device or other device that supports network communication.

[0356] The present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, which, when executed on a processor, Figure 9-12 The process of any of the method embodiments can be implemented.

[0357] The present application also provides a computer program product. When the computer program product is run on a processor, Figure 9-12 The process of any of the method embodiments can be implemented.

[0358] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A network connection system, characterized in that: include: Electronic equipment and network side equipment; among which, The electronic device is used to interact with the network side device through a long term evolution LTE link but disconnect the new air interface NR link between the network side device and the network side device; The electronic device is further configured to actively send first user equipment UE auxiliary information to the network side device when the electronic device meets a first preset condition; wherein the first UE auxiliary information includes a first field, and the uplink auxiliary carrier number reducedCCsUL sub-information element carried in the first field is a first value or the first field does not carry any sub-information element, and the first value is greater than 0; The network side device is used to establish the NR link with the electronic device in response to the first UE auxiliary information; The electronic device is also used to simultaneously interact with the network side device through the LTE link and the NR link.

2. The system according to claim 1, characterized in that The protocol version of the first UE auxiliary information is the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, and the first field is an overheating protection overheating field.

3. The system according to claim 1, characterized in that The protocol version of the first UE auxiliary information is the 3rd Generation Partnership Project 3GPP technical protocol specification R16 version, and the first field is the maximum number of secondary carriers maxCC field.

4. The system according to claim 1, characterized in that The network side device is further used to activate N uplink auxiliary carriers of the electronic device in response to the first UE auxiliary information, where N is the first value; The electronic device is specifically used for: Data is simultaneously sent to the network side device through the uplink main carrier on the LTE link and the N uplink auxiliary carriers on the NR link.

5. The system according to any one of claims 1 to 4, characterized in that: The electronic device is further used for: Before exchanging data with the network side device through the LTE link, exchanging data with the network side device through the LTE link and the NR link at the same time; When the electronic device meets the second preset condition, actively sends a secondary cell group failure SCG failure signaling to the network side device; The network side device is further configured to release the NR link with the electronic device in response to the SCG failure signaling; The electronic device is also used to turn off NR measurement after releasing the NR link.

6. The system according to claim 2, characterized in that The electronic device is further used for: Before performing data interaction with the network side through the LTE link, performing data interaction with the network side device through the LTE link and the NR link at the same time; When the electronic device meets the second preset condition, actively sends second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes the overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the overheating field in the second UE auxiliary information is 0; The network side device is further configured to release the NR link with the electronic device in response to the second UE auxiliary information; The electronic device is also used to turn off NR measurement after releasing the NR link.

7. The system according to claim 3, characterized in that The electronic device is further used for: Before performing data interaction with the network side through the LTE link, performing data interaction with the network side device through the LTE link and the NR link at the same time; When the electronic device meets the second preset condition, actively sends second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes the maxCC field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the maxCC field in the second UE auxiliary information is 0; The network side device is also used to release the NR link with the electronic device in response to the second UE auxiliary information.

8. The system according to claim 2, characterized in that The network side device is further configured to send a UE capability query request to the electronic device before receiving the first UE auxiliary information; The electronic device is further configured to send UE capability information to the network side device in response to the UE capability query request, wherein the UE capability information is used to indicate that the electronic device supports an overheating mechanism; The network side device is further used to send network reconfiguration information to the electronic device after receiving the UE capability information, wherein the network reconfiguration information includes overheating configuration information; The electronic device is further configured to execute configuration content in the overheating configuration information in response to the network reconfiguration information.

9. The system according to claim 1, characterized in that The electronic device is further configured to send a radio resource control RRC connection release signaling to the network side device before actively sending the first UE auxiliary information to the network side device when it is detected that the electronic device has no data service; The network side device is further configured to disconnect the RRC connection with the electronic device in response to the RRC connection release signaling; The electronic device is further configured to send an RRC connection establishment signaling to the network side device when the electronic device meets a second preset condition and detects that the electronic device has a data service; The network side device is further configured to establish an RRC connection with the electronic device in response to the RRC connection establishment signaling; The electronic device is further used to turn off NR measurement and send second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-information element in the second UE auxiliary information is 0; The network side device is further used to interact with the electronic device through the LTE link in response to the second UE auxiliary information.

10. The system according to claim 1, characterized in that The first preset condition includes: The electronic device lights up the screen; or, The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is greater than a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is greater than a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

11. The system according to claim 5, characterized in that The second preset condition includes: The electronic device turns off the screen; or, The screen of the electronic device is turned on, and the data transmission rate between the electronic device and the network side device is less than or equal to a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is less than or equal to a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is less than or equal to a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

12. An electronic device, characterized in that: include: one or more processors; A computer storage medium, wherein the computer storage medium includes computer instructions, and when the one or more processors execute the computer instructions, the electronic device performs the following actions: Data is exchanged with a network-side device through a long-term evolution LTE link, but a new air interface NR link with the network-side device is disconnected; when the electronic device meets a first preset condition, first UE auxiliary information is actively sent to the network-side device; wherein the first UE auxiliary information includes a first field, the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the first field is a first value or the first field does not carry any sub-information element, the first value is greater than 0, and the first UE auxiliary information is used to instruct the network-side device to establish the NR link with the electronic device; Establishing the NR link with the network side device; Data is exchanged with the network side device simultaneously through the LTE link and the NR link.

13. The electronic device according to claim 12, characterized in that: The protocol version of the first UE auxiliary information is the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, and the first field is an overheating protection overheating field.

14. The electronic device according to claim 12, characterized in that: The protocol version of the first UE auxiliary information is the 3GPP technical protocol specification R16 version, and the first field is the maximum number of auxiliary carriers maxCC field.

15. The electronic device according to claim 12, characterized in that: The simultaneously performing data interaction with the network side device through the LTE link and the NR link specifically includes: Data is sent to the network side device simultaneously through the uplink main carrier on the LTE link and N uplink auxiliary carriers activated by the network side device on the NR link, where N is the first value.

16. The electronic device according to any one of claims 12 to 15, characterized in that: When the one or more processors execute the computer instructions, the electronic device further performs the following actions: Before exchanging data with the network side device through the LTE link, exchanging data with the network side device through the LTE link and the NR link at the same time; When the electronic device meets the second preset condition, actively sends a secondary cell group failure SCG failure signaling to the network side device; Release the NR link with the network side device and close the NR measurement.

17. The electronic device according to claim 13, characterized in that: When the one or more processors execute the computer instructions, the electronic device further performs the following actions: Before performing data interaction with the network side through the LTE link, performing data interaction with the network side device through the LTE link and the NR link at the same time; When the electronic device meets the second preset condition, actively sends second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes the overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the overheating field in the second UE auxiliary information is 0; Release the NR link with the network side device and close the NR measurement.

18. The electronic device according to claim 14, characterized in that: When the one or more processors execute the computer instructions, the electronic device further performs the following actions: Before performing data interaction with the network side through the LTE link, performing data interaction with the network side device through the LTE link and the NR link at the same time; When the electronic device meets the second preset condition, actively sends second UE auxiliary information to the network side device, wherein the second UE auxiliary information includes the maxCC field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the maxCC field in the second UE auxiliary information is 0; Release the NR link with the network side device and close the NR measurement.

19. The electronic device according to claim 13, characterized in that: When the one or more processors execute the computer instructions, the electronic device further performs the following actions: Before sending the first UE auxiliary information to the network side device, receiving a UE capability query request sent by the network side device; In response to the UE capability query request, sending UE capability information to the network side device, wherein the UE capability information is used to indicate that the electronic device supports an overheating mechanism; receiving network reconfiguration information sent by the network side device, wherein the network reconfiguration information includes overheating configuration information; In response to the network reconfiguration information, the configuration content in the overheating configuration information is executed.

20. The electronic device according to claim 13, characterized in that: When the one or more processors execute the computer instructions, the electronic device further performs the following actions: Before actively sending the first UE auxiliary information to the network side device, when detecting that the electronic device has no data service, sending a radio resource control RRC connection release signaling to the network side device, the RRC connection release signaling is used to instruct the network side device to disconnect the RRC connection with the electronic device; Disconnecting the RRC connection from the network side device; When the electronic device meets the second preset condition and detects that the electronic device has a data service, sending an RRC connection establishment signaling to the network side device, wherein the RRC establishment signaling is used to instruct the network side device to establish the RRC connection with the electronic device; Establishing the RRC connection with the network side device; Turn off NR measurement, and send second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-information element in the second UE auxiliary information is 0; The device interacts with the network side device via the LTE link.

21. The electronic device according to claim 12, characterized in that: The first preset condition includes: The electronic device lights up the screen; or, The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is greater than a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is greater than a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

22. The electronic device according to claim 16, characterized in that: The second preset condition includes: The electronic device turns off the screen; or, The screen of the electronic device is turned on, and the data transmission rate between the electronic device and the network side device is less than or equal to a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is less than or equal to a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is less than or equal to a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

23. A chip system, characterized in that: Applied to electronic equipment, the chip system includes: an application processor AP and a baseband processor BP; wherein, The baseband processor is used to interact with the network side device through the long term evolution LTE link but disconnect the new air interface NR link between the network side device; The application processor is further configured to send a first instruction to the baseband processor when the electronic device meets a first preset condition; The baseband processor is further used to actively send first UE auxiliary information to the network side device in response to the first instruction; wherein the first UE auxiliary information includes a first field, the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the first field is a first value or the first field does not carry any sub-information element, the first value is greater than 0, and the first UE auxiliary information is used to instruct the network side device to establish the NR link with the electronic device; The baseband processor is further used to establish the NR link with the network side device; The baseband processor is also used to simultaneously interact with the network side device through the LTE link and the NR link.

24. The chip system according to claim 23, characterized in that: The protocol version of the first UE auxiliary information is the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, and the first field is an overheating protection overheating field.

25. The chip system according to claim 23, characterized in that: The protocol version of the first UE auxiliary information is the 3GPP technical protocol specification R16 version, and the first field is the maximum number of auxiliary carriers maxCC field.

26. The chip system according to claim 23, characterized in that: The baseband processor is specifically used to simultaneously send data to the network side device through the uplink main carrier on the LTE link and N uplink auxiliary carriers activated by the network side device on the NR link, where N is the first value.

27. The chip system according to any one of claims 23 to 26, characterized in that: The baseband processor is further configured to simultaneously interact with the network side device through the LTE link and the NR link before interacting with the network side through the LTE link; The application processor is further configured to send a second instruction to the baseband processor when the electronic device meets a second preset condition; The baseband processor is further configured to actively send a secondary cell group failure SCG failure signaling to the network side device in response to the second instruction; The baseband processor is also used to release the NR link with the network side device and close the NR measurement.

28. The chip system according to claim 24, characterized in that: The baseband processor is further configured to simultaneously interact with the network side device through the LTE link and the NR link before interacting with the network side through the LTE link; The application processor is further configured to send a second instruction to the baseband processor when the electronic device meets a second preset condition; The baseband processor is further configured to actively send second UE auxiliary information to the network side device in response to the second instruction, wherein the second UE auxiliary information includes the overheating field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the overheating field in the second UE auxiliary information is 0; The baseband processor and the network side device release the NR link and turn off the NR measurement.

29. The chip system according to claim 25, characterized in that: The baseband processor is further configured to simultaneously interact with the network side device through the LTE link and the NR link before interacting with the network side through the LTE link; The application processor is further configured to send a second instruction to the baseband processor when the electronic device meets a second preset condition; The baseband processor is further configured to actively send second UE auxiliary information to the network side device in response to the second instruction, wherein the second UE auxiliary information includes the maxCC field, and the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the maxCC field in the second UE auxiliary information is 0; The baseband processor and the network side device release the NR link and turn off the NR measurement.

30. The chip system according to claim 24, characterized in that: The baseband processor is further configured to receive a UE capability query request sent by the network side device before sending the first UE auxiliary information to the network side device; The baseband processor is further configured to send UE capability information to the network side device in response to the UE capability query request, wherein the UE capability information is used to indicate that the electronic device supports an overheating mechanism; The baseband processor is further configured to receive network reconfiguration information sent by the network side device, wherein the network reconfiguration information includes overheating configuration information; The baseband processor is further configured to execute configuration content in the overheating configuration information in response to the network reconfiguration information.

31. The chip system according to claim 24, characterized in that: The application processor is further configured to, before sending the first instruction to the baseband processor, send a third instruction to the baseband processor when detecting that the electronic device has no data service; The baseband processor is further used to send a radio resource control RRC connection release signaling to the network side device in response to the third instruction, wherein the RRC connection release signaling is used to instruct the network side device to disconnect the RRC connection with the electronic device; The baseband processor is further used to disconnect the RRC connection with the network side device; The application processor is further configured to send a second instruction to the baseband processor when the electronic device meets a second preset condition; The application processor is further configured to send a fourth instruction to the baseband processor when detecting that the electronic device has a data service; The baseband processor is further configured to send an RRC connection establishment signaling to the network side device in response to the fourth instruction, wherein the RRC establishment signaling is used to instruct the network side device to establish the RRC connection with the electronic device; The baseband processor is further used to establish the RRC connection with the network side device; The baseband processor is further configured to, in response to the second instruction, turn off NR measurement and send second UE auxiliary information to the network side device, wherein the reduced CCsUL sub-information element in the second UE auxiliary information is 0; The baseband processor is also used to perform data interaction with the network side device through the LTE link.

32. The chip system according to claim 23, characterized in that: The first preset condition includes: The electronic device lights up the screen; or, The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is greater than a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is greater than a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

33. The chip system according to claim 27, characterized in that: The second preset condition includes: The electronic device turns off the screen; or, The screen of the electronic device is turned on, and the data transmission rate between the electronic device and the network side device is less than or equal to a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is less than or equal to a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is less than or equal to a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

34. A network connection method, characterized in that: The method comprises: The electronic device exchanges data with the network side device through the long-term evolution LTE link but disconnects the new air interface NR link between the electronic device and the network side device; when the electronic device meets the first preset condition, it actively sends the first UE auxiliary information to the network side device; wherein the first UE auxiliary information includes a first field, the number of uplink auxiliary carriers reducedCCsUL sub-information element carried in the first field is a first value or the first field does not carry any sub-information element, the first value is greater than 0, and the first UE auxiliary information is used to instruct the network side device to establish the NR link with the electronic device; The electronic device establishes the NR link with the network side device; The electronic device exchanges data with the network side device simultaneously through the LTE link and the NR link.

35. The method according to claim 34, characterized in that The protocol version of the first UE auxiliary information is the 3rd Generation Partnership Project 3GPP technical protocol specification R14 version or R15 version, and the first field is an overheating protection overheating field.

36. The method according to claim 34, characterized in that The protocol version of the first UE auxiliary information is 3GPP technical protocol specification R16 version, and the first field is the maximum number of secondary carriers maxCC field.

37. The method according to any one of claims 34 to 36, characterized in that: Before the electronic device exchanges data with the network side device through the LTE link, the electronic device further includes: The electronic device simultaneously exchanges data with the network side device through the LTE link and the NR link; When the electronic device meets the second preset condition, the electronic device actively sends a secondary cell group failure SCGfailure signaling to the network side device; The electronic device and the network side device release the NR link and turn off the NR measurement.

38. The method according to claim 34, characterized in that The first preset condition includes: The electronic device lights up the screen; or, The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is greater than a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is greater than a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

39. The method according to claim 37, characterized in that The second preset condition includes: The electronic device lights up the screen; or, The screen of the electronic device is on, and the data transmission rate between the electronic device and the network side device is greater than a first preset rate; or, The screen of the electronic device is turned on, and the size of the data packet to be transmitted by the electronic device is greater than a first preset threshold; or, The device temperature of the electronic device is greater than or equal to a preset temperature threshold; or, The screen of the electronic device is turned off, and the data transmission rate between the electronic device and the network side device is greater than a second preset rate; or, The screen of the electronic device is turned off, and the size of the data packet transmitted between the electronic device and the network side device is greater than a second preset threshold.

40. A computer storage medium, characterized in that The method comprises computer instructions, which, when executed on an electronic device, cause the electronic device to execute the method as claimed in any one of claims 34 to 39.

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