WO2016115868A1

WO2016115868A1 - Method for adjusting network resources between access technology networks, and terminal

Info

Publication number: WO2016115868A1
Application number: PCT/CN2015/086128
Authority: WO
Inventors: 贺美芳; 黄河
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-01-23
Filing date: 2015-08-05
Publication date: 2016-07-28
Also published as: CN105873115A; CN105873115B

Abstract

A method for adjusting network resources between access technology networks, and a terminal. The terminal accesses a wireless local area network and at least one 3GPP network (which may be an LTE) network or a UMTS network) simultaneously, and shunting is achieved by utilizing the wireless local area network; the terminal detects a wireless link of at least one accessed network; and when it is detected that the wireless link of at least one network has failed, the terminal triggers adjustment of network resources (for example, performing network anomaly reporting, backoff or link reconstruction) in time. Severe data delay and packet loss are avoided, the service quality of a user plane is guaranteed, and the satisfaction degree of the user experience can be improved.

Description

Network resource adjustment method and terminal between access technology networks

Technical field

The present application relates to, but is not limited to, the field of communications, and in particular, to a network resource adjustment method and terminal between access technology networks.

Background technique

With the continuous evolution of wireless communication technologies and standards, mobile packet services have been greatly developed, and the data throughput capability of single terminals has been continuously improved. Taking the Long Term Evolution (LTE) system as an example, the downlink maximum rate of 100 Mbps data transmission can be supported in the 20 M bandwidth. In the subsequent enhanced LTE (LTE Advanced) system, the data transmission rate will be further improved, and even 1Gbps.

The inflated growth of terminal data traffic has made existing network resources incapable, especially in the case that next-generation communication technologies (such as 3G and LTE) cannot be widely deployed, followed by user rates and traffic. The demand cannot be met and the user experience is getting worse. How to prevent and change this situation is an issue that operators must consider. On the one hand, it is necessary to speed up the promotion of new technologies and network deployment. On the other hand, it is hoped that the existing networks and technologies can be enhanced to achieve rapid improvement of network performance. purpose. As we all know, in addition to the wireless network technology provided by The 3rd Generation Partnership Project (3GPP), the wireless local area network (WLAN), which is currently widely used, especially based on the Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11 standard wireless local area networks have been widely used in hotspot access coverage in homes, businesses, and even the Internet. Among them, the technical specifications proposed by the Wi-Fi Alliance are the most widely used, so in actual applications, the WiFi network is often equated with the WLAN network based on the IEEE 802.11 standard.

Under this premise, some operators and companies have proposed to combine WLAN with existing 3GPP networks to achieve joint transmission to achieve load shunting and improve network performance. The 3GPP SA2 adopts an Access Network Discovery and Selection Functions (ANDSF) scheme, and provides a mode for selecting a target access network for a terminal according to an operator policy.

The 3GPP R10 defines the ANDSF standard. The ANDSF acts as an access anchor to implement intelligent network selection. Through the interaction between the network and the terminal, the network access is effectively offloaded, which is in line with the future multi-network coordinated operation direction. The ANDSF formulates policies based on information such as network load, terminal capabilities, and user subscriptions to help end users select the best access network standard and implement coordinated operation of multiple access modes. ANDSF can be deployed separately or in combination with other network elements. At present, the mainstream view of the industry believes that ANDSF can be deployed on PCC devices.

ANDSF is a WLAN interworking scheme based on the core network, and does not consider the impact on the access network. In addition, because the ANDSF is a relatively static scheme, it can not adapt to the dynamic changes of network load and channel quality. The 3GPP access network group also conducted a WLAN interworking discussion. In R12 WLAN/3GPP wireless interoperation, a mechanism for performing WLAN offloading rules and triggering is introduced.

However, the core network mechanism and the auxiliary information mechanism from the radio access network cannot provide the network side with real-time use of load and channel conditions to consolidate the use of radio resources. In addition, data from the same bearer cannot be served on both 3GPP and WLAN links. Therefore, the need for WLAN integration with 3GPP networks was reintroduced at the RAN65 subliminal.

Compared with the WLAN offloading scheme that has been studied and relies on policy and triggering, the RAN hierarchically aggregated WLAN is integrated with the 3GPP network, and the WLAN and the 3GPP network are closely coupled, similar to carrier aggregation and dual connectivity, providing a better double for the overall system. Control and utilization of resources on the connection. Tight integration and aggregation at the wireless layer allows for more real-time joint scheduling of WLANs and radio resources of the 3GPP network, thus increasing user QoS and overall system capacity. By better managing the wireless resources between users, it is possible to increase the collective throughput of all users and provide the entire system capacity. Based on real-time channel conditions and system usage, each link scheduling decision can be made to the level of each packet. The user plane is anchored to a reliable LTE network and can be improved by rolling back to the LTE network.

WLAN and 3GPP network tight coupling can be applied to the co-location scenario (Enb and AP (Wireless Access Point)) through the internal interface to complete the RAN layer integration operation) and non-same collaboration scenario (between Enb and AP) The RAN layer integration operation is completed through an external interface, which is essentially similar to 3gpp carrier aggregation and dual connectivity, respectively. The same-ground collaboration method is applied to the WLAN and 3GPP integrated base station sites as shown in Figure 1, or the ideal loop-connected WLAN and 3GPP network are shown in Figure 2. The non-co-located cooperation scheme is applied to the independent WLAN in most cases. The scene of the AP layout is shown in Figure 3.

There are four types of WLAN offloading schemes that are closely coupled to the WLAN and the 3GPP network: the simplified packet PDCP (Packet Data Convergence Protocol) layer splitting, the PDCP layer splitting of the dual connectivity architecture, and the RLC (Radio Link Control) The layer protocol is layered and the MAC (Media Access Control) layer is offloaded.

The simplified architecture PDCP layer is offloaded, and the WLAN offload of the downlink data stream is completed in the PDCP layer of the 3GPP access network, and then transmitted to the PDCP adapter, which completes the conversion of the 3gpp PDCP protocol data unit to the WLAN MAC protocol data unit. The wireless air interface of the WLAN is sent to the MAC layer of the WLAN of the terminal, and then sent to the PDCP adapter of the terminal, and the PDCP adapter of the terminal completes the conversion of the WLAN MAC protocol data unit to the PDCP protocol data unit, and then sends the PDCP to the UE. The entity, the last PDCP entity sends the service data unit of the PDCP to the corresponding application service. The upstream data stream is a PDCP entity that is sent from the PDCP entity of the terminal to the 3GPP access network, similar to the downlink process, but with the opposite direction.

The so-called dual-connection architecture PDCP layer is offloaded, and the data is divided twice. First, the PDCP layer of the 3GPP access network distributes the data stream to the radio link control layer of the nano cell of the secondary base station, and then in the MAC of the micro cell. The secondary downlink data stream is offloaded, that is, the WLAN is offloaded to the MAC adapter, and the adapter completes the conversion of the protocol data unit of the 3gpp MAC to the MAC protocol data unit of the WLAN, and sends the wireless air interface of the WLAN to the MAC layer of the WLAN of the terminal, and then The adapter of the MAC sent to the terminal, the adapter of the terminal completes the conversion of the MAC protocol data unit of the WLAN to the protocol data unit of the MAC, and then sends the MAC entity to the UE, and the user data unit is sent to the corresponding application service according to the 3GPP air interface protocol. . The upstream data flow is similar to the downstream process, but in the opposite direction.

The so-called RLC layer is offloaded, and the WLAN offload of the downlink data stream is completed at the RLC layer of the 3GPP access network, and then transmitted to the RLC adapter, which completes the conversion of the protocol data unit of the 3Gpp RLC protocol data unit to the WLAN MAC protocol data unit, through the WLAN. The wireless air interface is sent to the MAC layer of the WLAN of the terminal, and then sent to the adapter of the RLC of the terminal, and the adapter of the terminal completes the conversion of the WLAN MAC protocol data unit to the protocol data unit of the RLC, and then sends the signal to the PDCP entity of the UE, and finally The PDCP entity sends the service data unit of the PDCP to the corresponding application service. The upstream data stream is sent from the PDCP entity of the terminal to the PDCP of the 3GPP access network. Entity, similar to the down process, but in the opposite direction.

The so-called MAC layer offloading, the WLAN offload of the downlink data stream is completed at the MAC layer of the 3GPP access network, and then transmitted to the MAC adapter, which completes the conversion of the protocol data unit of the 3gpp MAC to the MAC protocol data unit of the WLAN, through the WLAN The wireless air interface is sent to the MAC layer of the WLAN of the terminal, and then sent to the adapter of the MAC of the terminal, and the adapter of the terminal completes the conversion of the protocol data unit of the WLAN to the protocol data unit of the MAC, and then sends the signal to the PDCP entity of the UE, and finally The PDCP entity sends the service data unit of the PDCP to the corresponding application service. The upstream data stream is a PDCP entity that is sent from the PDCP entity of the terminal to the 3GPP access network, similar to the downlink process, but with the opposite direction.

The WLAN network is a time-sharing network. There is no mechanism to report the WLAN wireless link status mechanism. When the WLAN side network is unstable and the signal quality is poor, the network link fails. The adjustment will result in severe data delay and packet loss, and the quality of the user's service cannot be guaranteed.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a network resource adjustment method and a terminal between access technology networks, so as to solve the problem that the related access technology network cannot adjust the network resources in time according to the network link condition, causing serious delay and loss of data. Package problem.

According to an aspect of the present invention, an embodiment of the present invention provides a network resource adjustment method between access technology networks, including:

The terminal simultaneously accesses the wireless local area network and the at least one 3GPP network;

When the terminal detects that the wireless link of the accessed at least one network fails, the network resource adjustment process is triggered.

Optionally, where the terminal accesses the WLAN and a 3GPP network at the same time, and the terminal detects that the wireless link of one of the accessed networks fails, the network resource adjustment is performed. The whole network includes: abnormal network reporting or wireless link re-establishment; wherein the network that fails the wireless link is a faulty network, and the normal network is the reported target network;

The abnormal reporting of the network includes:

The terminal reports a radio link failure message of the faulty network to the reporting target network;

The wireless link reconstruction includes:

Transmitting, by the terminal, a radio link reestablishment request message to the faulty network;

Receiving, by the terminal, the radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The terminal performs radio link reestablishment of the faulty network according to the radio link reestablishment message.

Optionally, when the terminal accesses the WLAN and the at least two 3GPP networks, and the terminal detects that the wireless link of the accessed one of the networks fails, the performing network resource adjustment includes: abnormal network reporting Or wireless link reconstruction; wherein the network that fails the wireless link is a faulty network, and the other network is a normal network;

The abnormal reporting of the network includes:

The terminal selects one of the plurality of normal networks as the reporting target network;

The wireless link reconstruction includes:

Optionally, wherein, when performing network abnormal reporting, the terminal selecting one of the multiple normal networks as the reporting target network includes:

When the LTE network is included in the multiple normal networks, the LTE network is selected as the reporting target network;

When the LTE network is not included in the multiple normal networks but includes the UMTS network, the UMTS network is selected as the reporting target network;

or,

The network with the highest priority is selected as the reporting target network from the plurality of normal networks; the reporting priority of the multiple networks is pre-configured.

Optionally, after the network abnormality reporting, the terminal reports the wireless link failure message of the faulty network to the reporting target network, and further includes a network fallback process, including:

Receiving, by the terminal, the radio control resource reconfiguration message fed back by the reporting target network according to the WLAN radio link failure message, where the radio control resource reconfiguration message only includes the reported target network resource information;

The terminal completes resource reconfiguration according to the radio control resource reconfiguration message, and falls back to the reporting target network.

Optionally, wherein, when performing network back-off, after the terminal completes resource re-configuration according to the radio control resource re-configuration message, the terminal further includes releasing tightly coupled resources with the faulty network; and/or reporting After the terminal completes resource reconfiguration according to the radio control resource reconfiguration message, the target network further includes releasing tightly coupled resources with the faulty network.

Optionally, after the terminal reports the radio link failure message of the faulty network to the reporting target network, or after the terminal completes resource reconfiguration according to the radio control resource reconfiguration message, the terminal further performs the following operations. At least one operation:

Stop uplink data transmission in the faulty network;

Stopping downlink data reception in the faulty network;

Performing a deregistration operation from the faulty network;

Releasing resources in the faulty network;

Deleting configuration information received from the faulty network;

The event measurement evaluation and trigger reporting of the cell or the wireless access point used when the radio link fails in the faulty network is stopped.

Optionally, the terminal accesses the WLAN and the at least one 3GPP network at the same time, where the primary network exists in the multiple accessed networks, and the network resource is detected when the wireless link of the primary network fails. Adjustments include wireless link re-establishment;

The wireless link reconstruction includes:

The terminal sends a radio link reestablishment request message to the primary network that fails the radio link;

Receiving, by the terminal, a radio link reestablishment message fed back by the primary network according to the radio link reestablishment request message;

The terminal performs radio link reestablishment of the primary network according to the radio link reestablishment message.

Optionally, where the terminal accesses the WLAN and the at least one 3GPP network at the same time, and detects that the radio link of each network accessed by the terminal fails, the performing network resource adjustment includes radio link reestablishment. ;

The wireless link reconstruction includes:

The terminal selects one of the multiple networks that are accessed as the reconstruction target network;

Transmitting, by the terminal, a radio link reestablishment request message to the reestablishment target network;

Receiving, by the terminal, a radio link reestablishment message fed back by the reestablishment target network according to the radio link reestablishment request message;

The terminal performs radio link reestablishment of the reestablishment target network according to the radio link reestablishment message.

Optionally, the selecting, by the terminal, one of the multiple networks that are accessed as the reconfiguration target network includes:

When the network connected to the terminal includes the LTE network, the LTE network is selected as the reconstruction target network;

When the network accessed by the terminal does not include the LTE network but includes the UMTS network, the UMTS network is selected as the reconstruction target network;

or,

The network with the highest reconstruction priority is selected from the plurality of accessed networks as the reconstruction target network; the reconstruction priorities of the multiple networks are pre-configured.

Optionally, where the terminal detects that one of the following conditions or at least two combinations of the network to which the terminal is connected determines that the wireless link fails in the network:

The wireless signal strength measurement result under the network is lower than the preset signal strength threshold in the first preset time period;

Detecting that the synchronization is lost under the network, and there is no reply within the second preset time period;

A successful data transmission is not completed within the third preset time period;

The RLC entity corresponding to the service transmitted by the network is retransmitted to the maximum number of times;

When there is a data transmission requirement in the network, no resource transmission opportunity is obtained in the fourth preset time period;

The data transmission time delay in the network is greater than the preset delay time threshold.

According to another aspect of the present invention, an embodiment of the present invention further provides a terminal, including an access module, a detection module, and a processing module:

The access module is configured to simultaneously access a wireless local area network and at least one 3GPP network;

The detecting module is configured to detect whether the wireless link fails in the at least one network accessed by the access module;

The processing module is configured to trigger a network resource adjustment process when the detecting module detects that the at least one network radio link accessed by the access module fails.

Optionally, the processing module includes a first network abnormality processing submodule or a first reconstruction submodule; the access module simultaneously accesses a wireless local area network and a 3GPP network, and the detecting module detects the When the radio link of one of the networks connected to the access module fails, the first network abnormality processing sub-module performs network abnormal reporting, or the first re-establishment sub-module performs radio link reconstruction; wherein the radio link fails The network is a faulty network, and the normal network is a reported target network;

The first network exception processing submodule includes a first sending subunit;

The first sending subunit is configured to report a radio link failure message of the faulty network to the reporting target network;

The first reconstruction sub-module includes a second transmission sub-unit, a second reception sub-unit, and a first reconstruction sub-unit;

The second sending subunit is configured to send a radio link reestablishment request message to the faulty network;

The second receiving subunit is configured to receive a radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The first reconstruction subunit is configured to perform radio link reestablishment of the faulty network according to the radio link reestablishment message.

Optionally, the first network exception processing sub-module further includes a first receiving sub-unit and a first re-matching sub-unit;

The first receiving subunit is configured to receive a radio control resource reconfiguration message fed back by the reporting target network according to the WLAN radio link failure message, where the radio control resource reconfiguration message only includes the reporting target network Resource information

The first reconfiguration subunit is configured to complete resource reconfiguration according to the radio control resource reconfiguration message, and roll back to the reporting target network.

Optionally, the processing module includes a second network abnormality processing submodule or a second rebuilding submodule; and when the access module simultaneously accesses a wireless local area network and at least two 3GPP networks, and the detecting module The second network abnormality processing sub-module performs network abnormal reporting or the second reconstruction sub-module wireless link reconstruction when detecting that the wireless link of the network accessed by the access module fails; wherein, the wireless The network with failed links is a faulty network, and the other networks are normal networks.

The second network exception processing sub-module includes a first selection sub-unit and a third transmission sub-unit;

The first selection subunit is configured to select one of the plurality of normal networks as the reporting target network;

The third sending subunit is configured to report a radio link failure message of the faulty network to the reporting target network;

The second reconstruction sub-module includes a fourth transmission sub-unit, a fourth reception sub-unit, and a second reconstruction sub-unit;

The fourth sending subunit is configured to send a radio link reestablishment request message to the faulty network;

The fourth receiving subunit is configured to receive a radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The second reconstruction subunit is configured to perform radio link reestablishment of the faulty network according to the radio link reestablishment message.

Optionally, wherein the second network exception processing submodule further includes a third receiving subunit and Third reassortment unit;

The third receiving subunit is configured to receive a radio control resource reconfiguration message fed back by the reporting target network according to the WLAN radio link failure message, where the radio control resource reconfiguration message includes only the reporting target network Resource information

The third reconfiguration subunit is configured to complete resource reconfiguration according to the radio control resource reconfiguration message, and roll back to the reporting target network.

Optionally, the processing module includes a third re-establishment sub-module; the access module simultaneously accesses a wireless local area network and at least one 3GPP network, and a main network exists in the accessed multiple networks, When the detecting module detects that the radio link of the primary network fails, the third reestablishing submodule is configured to perform radio link reestablishment;

The third reconstruction sub-module includes a fifth transmission sub-unit, a fifth reception sub-unit, and a third reconstruction sub-unit;

The fifth sending subunit is configured to send a radio link reestablishment request message to the primary network that fails the radio link;

The fifth receiving subunit is configured to receive a radio link reestablishment message fed back by the primary network according to the radio link reestablishment request message;

The third reconstruction subunit is configured to perform radio link reestablishment of the primary network according to the radio link reestablishment message.

Optionally, the processing module includes a fourth re-establishment sub-module; the access module simultaneously accesses a WLAN and at least one 3GPP network, and the detection module detects that the access module is connected The fourth re-establishment sub-module is configured to perform radio link re-establishment when the radio link of each network fails;

The fourth reconstruction sub-module includes a second selection sub-unit, a sixth transmission sub-unit, a sixth receiving sub-unit, and a fourth re-establishing sub-unit;

The second selection subunit is configured to select one of the accessed multiple networks as a reconstruction target network;

The sixth sending subunit is configured to send a radio link reestablishment request message to the reestablishment target network;

The sixth receiving subunit is configured to receive a radio link reestablishment message fed back by the reestablishment target network according to the radio link reestablishment request message;

The fourth reconstruction subunit is configured to perform radio link reconstruction of the reestablishment target network according to the radio link reestablishment message.

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the network resource adjustment method between the access technology networks.

The beneficial effects of the embodiments of the present invention are:

The method for adjusting network resources between access technology networks and the terminal provided by the embodiment of the present invention, the terminal simultaneously accesses the wireless local area network and at least one 3GPP network (which may be an LTE network or a UMTS network), and implements offloading by using a wireless local area network; The wireless link of the at least one network that is connected is detected, and when the wireless link of the at least one network fails, the network resource adjustment is triggered in time (for example, abnormal network reporting, network back-off, link re-establishment, etc.) To avoid serious data delay and packet loss, to ensure the quality of the user's service, and to improve the satisfaction of the user experience.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a schematic diagram of a WLAN and 3GPP integrated base station site;

2 is a schematic diagram of an ideal loop connected WLAN and 3GPP network;

3 is a schematic diagram of a scenario of an independent WLAN AP layout;

4 is a schematic flowchart of a network resource adjustment method between access technology networks according to Embodiment 1 of the present invention;

FIG. 5 is a schematic flowchart of a network fallback processing process according to Embodiment 1 of the present invention; FIG.

FIG. 6 is a schematic flowchart of a radio link reestablishment according to Embodiment 1 of the present invention;

FIG. 7 is a schematic flowchart of another network fallback processing process according to Embodiment 1 of the present invention; FIG.

FIG. 8 is a schematic flowchart of another wireless link reestablishment according to Embodiment 1 of the present invention; FIG.

9 is a schematic structural diagram of a terminal in Embodiment 2 of the present invention;

10 is a schematic flowchart of a network resource adjustment method in scenario 1 according to Embodiment 3 of the present invention;

11 is a schematic flowchart of a network resource adjustment method in scenario 2 in Embodiment 3 of the present invention;

FIG. 12 is a schematic flowchart of a network resource adjustment method in scenario 3 according to Embodiment 3 of the present invention;

FIG. 13 is a schematic flowchart of a network resource adjustment method in scenario 4 according to Embodiment 3 of the present invention;

FIG. 14 is a schematic flowchart of a network resource adjustment method in scenario 5 in Embodiment 3 of the present invention.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other. Additionally, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

Embodiment 1:

Referring to FIG. 4, the network resource adjustment method between the access technology networks shown in this embodiment includes:

Step 401: The terminal accesses the wireless local area network (WLAN network) and the at least one 3GPP network (for example, an LTE network or a UMTS (Universal Mobile Telecommunications System) network, etc.), and uses the WLAN network for offloading;

Step 402: The terminal detects a wireless link of the accessed at least one network.

Step 403: When the terminal detects that the radio link of the at least one network fails, the network resource is adjusted. The network resource adjustment is performed according to the specific application scenario, including network abnormal reporting (network fallback processing after reporting) or link reestablishment. Processing and so on.

In this embodiment, when the terminal detects that one of the following conditions or a combination of at least two of the following occurs, the terminal determines that the wireless link fails in the network:

The wireless signal strength measurement result under the network is lower than the preset signal in the first preset time period Intensity threshold

A successful data transmission is not completed within the third preset time period under the network;

The preset time and the specific setting of each threshold may be flexibly selected according to factors such as the type of the detected network and the specific application scenario.

In this embodiment, when the terminal accesses the WLAN and the 3GPP network at the same time, and the terminal detects that the wireless link of the accessed one of the networks fails, the network resource adjustment at this time includes the network abnormal report or the wireless link. Reconstruction; and in this embodiment, after performing network abnormal reporting, in order to ensure normal transmission of service data, network fallback processing may be performed immediately. The network that fails the wireless link is the faulty network (the faulty network is the wireless local area network), and the other normal network is the reported target network (the network is the LTE network);

For the network abnormal report and network rollback processing, see Figure 5, including:

Step 501: The terminal reports the radio link failure message of the faulty network to the target network, which may be sent by using an uplink air interface message.

Step 502: After receiving the radio link failure message, the target network sends a radio control resource reconfiguration message to the terminal, where the radio control resource reconfiguration message only includes the report target network resource information, and is used to notify the terminal to roll back to the report. Target network

Step 503: The terminal receives the radio control resource reconfiguration message that is reported by the target network, and completes the resource reconfiguration according to the radio control resource reconfiguration message, and falls back to the reporting target network; because the reporting target network (LTE network) at this time is It is normal and reliable, so rolling back to the network can avoid serious data delay and packet loss, and ensure the quality of the user's service.

In addition to the network fallback processing described above, wireless link re-establishment can be performed to avoid severe data delay and packet loss. For the process, see Figure 6, which includes:

Step 601: The terminal sends a radio link reestablishment request message to the faulty network (for example, if the LTE network fails, the WLAN is normal);

Step 602: After receiving the radio link reestablishment request message sent by the terminal, the faulty network (LTE network) feeds back a radio link reestablishment message to the terminal.

Step 603: The terminal receives a radio link reestablishment message fed back by the faulty network (for example, an LTE network), and performs radio link reestablishment of the faulty network according to the radio link reestablishment message.

In this embodiment, when the terminal accesses the WLAN and the at least two 3GPP networks at the same time, and the terminal detects that the wireless link of the accessed one network fails, the network resource adjustment includes the network fallback or the wireless chain. In the embodiment, after the network abnormality report is performed, in order to ensure the normal transmission of the service data, the network fallback processing may also be performed. Hereinafter, the network that fails the wireless link is a faulty network, and the other network is a normal network;

For the network abnormal report and network rollback processing, see Figure 7, including:

Step 701: The terminal selects one of the multiple normal networks that are accessed as the reporting target network (for example, selecting an LTE network as the reporting target network);

Step 702: The terminal reports the radio link failure message of the faulty network to the target network, which may be sent by using an uplink air interface message.

Step 703: After receiving the radio link failure message, the target network sends a radio control resource reconfiguration message to the terminal, where the radio control resource reconfiguration message only includes the report target network resource information, and is used to notify the terminal to fall back to the report. Target network

Step 704: The terminal receives the radio control resource reconfiguration message that is reported by the target network, and completes the resource reconfiguration according to the radio control resource reconfiguration message, and falls back to the reporting target network. The reporting target network (LTE network) at this time is It is normal and reliable, so rolling back to the network can avoid serious data delay and packet loss, and ensure the quality of the user's service.

The process of reestablishing the radio link at this time is the same as that shown in FIG. 6, and details are not described herein again.

In the foregoing step 701, when performing network fallback, the terminal selects one of the multiple normal networks as the reporting target network, including:

UMTS is selected when the plurality of normal networks do not include an LTE network but include a UMTS network The network acts as a reporting target network;

or,

The network with the highest priority is selected as the reporting target network from the plurality of normal networks; the reporting priority of each network is pre-configured, and the pre-configuration may be a protocol agreement or configured by the eNB.

The above rules in this embodiment may be built in the terminal in advance, or may be dynamically configured by the system.

In this embodiment, when the reporting target network is an LTE network or a UMTS network, the terminal may specifically select one or more of the following messages to send a radio link failure message of the faulty network:

●Measurement report

●Wireless link failure indication

● A radio link reconfiguration request (for requesting reporting to the target network to reconfigure the service from the failed network back to the reporting target network).

In this embodiment, when the terminal reports the radio link failure message of the faulty network, the radio link failure message may include a specific cause value of the failure and/or a measurement result of the faulty network by the terminal; specifically, the radio link failure message may be Contains a combination of one or more of the following information:

●Wireless link failure indication

● Reason for failure

●SSID

●BSSID

●RB ID

●UE ID

●MAC

●AID

The reason for the failure matches the rule that the terminal detects whether the wireless link of the network has failed.

In this embodiment, when the terminal reports the abnormality of the network, the terminal may report the radio link failure message of the faulty network to the target network, and the terminal may perform at least one of the following operations:

● stopping uplink data transmission in the faulty network;

Stopping downlink data reception in the faulty network;

● performing a deregistration operation from the faulty network;

Dissolving resources in the faulty network;

Deleting configuration information received from the faulty network;

Stop the event measurement evaluation and trigger reporting of the cell or the wireless access point used when the radio link fails in the faulty network;

● No additional operations are performed, waiting to be reported to the target network for reconfiguration.

When the terminal performs the network fallback, after the terminal reports the radio link failure message of the faulty network to the target network, the terminal may not perform additional operations. After the terminal completes the resource reconfiguration according to the radio control resource reconfiguration message, the terminal performs the following operations. At least one operation in the operation:

● stopping uplink data transmission in the faulty network;

Stopping downlink data reception in the faulty network;

● performing a deregistration operation from the faulty network;

Dissolving resources in the faulty network;

Deleting configuration information received from the faulty network;

- Stop the event measurement evaluation and trigger reporting of the cell or the wireless access point used when the radio link fails in the faulty network.

In this embodiment, when the terminal performs network rewinding, the terminal completes resource reconfiguration according to the radio control resource reconfiguration message, and further includes tightly coupling resources between the terminal release and the faulty network (for example, when the faulty network is a wireless local area network) The tightly coupled resource includes the IP address bundling; and/or the reported target network (for example, the LTE network) after the terminal completes the resource reconfiguration according to the radio control resource reconfiguration message (specifically, the resource reconfiguration is completed by receiving the feedback from the terminal). The message judgment) further includes releasing the tight coupling resource between the failed network and the faulty network (the tightly coupled resource includes IP and/or MAC address and/or AID bundle when the reported target network is an LTE network).

In this embodiment, when the terminal simultaneously accesses the wireless local area network and the at least one 3GPP network, and the plurality of connected networks are divided into the primary network, the terminal detects the wireless link of the primary network. In case of failure, the network resource adjustment includes wireless link reconstruction, and the reconstruction process includes:

In this embodiment, the terminal accesses the WLAN and the at least one 3GPP network at the same time. At this time, the primary and secondary networks are not divided between the multiple access networks, and the terminal detects the networks accessed by the terminal. When the wireless link fails, the network resource adjustment includes wireless link re-establishment. The reconstruction process is shown in Figure 8, including:

Step 801: The terminal selects one of the multiple networks that are accessed as the reconstruction target network.

Step 802: The terminal sends a radio link reestablishment request message to the reestablishment target network.

Step 803: The terminal receives a radio link reestablishment message that is returned by the reestablishment target network according to the radio link reestablishment request message.

Step 804: The terminal performs radio link reconstruction of the reestablishment target network according to the radio link reestablishment message.

In the foregoing step 801, the terminal selects one of the multiple networks that are accessed as the reconstruction target network, including:

or,

The network with the highest re-establishment priority is selected as the re-establishment target network from the multiple access networks; the re-establishment priority of each network is pre-configured, and the pre-configuration may be a protocol agreement or configured by the eNB.

It should be understood that the network fallback and link re-establishment scheme shown in this embodiment is applicable to all WLAN offloading schemes in which the WLAN is tightly coupled to the 3GPP network, and specifically, it is suitable for simplifying the PDCP layer of the PDCP layer offload and the dual connectivity architecture. Split, RLC layer split, and MAC layer split.

It should be understood that those skilled in the art can understand that all or part of the steps of implementing the foregoing embodiments may be performed by a program to instruct related hardware, and the program may also be stored in a computer readable storage medium. The storage medium is, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

Embodiment 2:

As shown in FIG. 9, the embodiment further provides a terminal, where the terminal includes a processor and a program storage device, and further includes an access module 1, a detection module 2, and a processing module 3:

The access module 1 is adapted to simultaneously access a wireless local area network (WLAN network) and at least one 3GPP network (for example, may be an LTE network or a UMTS network, etc.), and use the WLAN network for offloading;

The detecting module 2 is adapted to detect whether the wireless link fails in the at least one network accessed by the access module 1;

The processing module 3 is adapted to trigger network resource adjustment when the detecting module 2 detects that the at least one network radio link accessed by the access module 1 fails. The network resource adjustment here includes network abnormal reporting or link reestablishment processing according to specific application scenarios. After the network abnormal report processing is performed, the network fallback processing can also be performed to find the normal transmission of the data.

In this embodiment, when the detecting module 2 detects that one of the following conditions or a combination of at least two occurs in a network accessed by the access module, the wireless link fails:

Each of the preset times and the specific settings of the thresholds may be combined with the detected network type and Flexible selection of factors such as the application scenario.

In an example of the embodiment, the processing module 3 includes a first network abnormality processing submodule or a first reconstruction submodule; the access module 1 simultaneously accesses a wireless local area network and a 3GPP network, and the detection module 2 detects the access. When the radio link of one of the networks connected to the module 1 fails, the first network abnormality processing sub-module performs network abnormality reporting and may perform network fallback processing after the report or the first reconstruction sub-module wireless link reconstruction; The network that the wireless link fails is called the faulty network, and the other normal network is the reported target network;

The first network exception processing submodule includes a first sending subunit, a first receiving subunit, and a first reconfigurable subunit;

The first sending subunit is adapted to report the radio link failure message of the faulty network to the target network, and may be sent by using an uplink air interface message;

The first receiving subunit is configured to receive the radio control resource reconfiguration message that is reported by the reporting target network according to the WLAN radio link failure message, and the radio control resource reconfiguration message only includes the reporting target network resource information, and is used for notifying the terminal to retreat. To report to the target network;

The first reconfiguration sub-unit is adapted to complete the resource reconfiguration and roll back to the reporting target network according to the radio control resource reconfiguration message. Since the reporting target network is normal and reliable at this time, the fallback to the network can avoid serious data delay and Loss of packets to ensure the quality of the user's business.

The second sending subunit is adapted to send a radio link reestablishment request message to the faulty network (for example, if the LTE network fails, the WLAN is normal);

The second receiving subunit is adapted to receive a radio link reestablishment message fed back by the faulty network (LTE network) according to the radio link reestablishment request message;

The first reconstruction subunit is adapted to perform radio link reconstruction of the faulty network (LTE network) according to the radio link reestablishment message.

In another example of the embodiment, the processing module 3 includes a second network abnormality processing submodule or a second reconstruction submodule; when the access module 1 simultaneously accesses the wireless local area network and at least two 3GPP networks, and the detection module 2 When detecting that the wireless link of a network accessed by the access module 1 fails, The second network abnormality processing sub-module performs network back-off processing after the network abnormality is reported or reported, or the second reconstruction sub-module performs wireless link reconstruction; the network that the wireless link fails is hereinafter referred to as the faulty network, and the other network is the normal network;

The second network exception processing submodule includes a first selection subunit, a third transmission subunit, a third receiving subunit, and a third reconfiguration subunit;

The first selection subunit is adapted to select one of the plurality of normal networks as the reporting target network;

The third sending subunit is adapted to report the radio link failure message reported by the target network to the faulty network;

The third receiving subunit is adapted to receive the radio control resource reconfiguration message that is reported by the reporting target network according to the WLAN radio link failure message, and the radio control resource reconfiguration message only includes reporting the target network resource information;

The third reconfiguration subunit is adapted to complete the resource reconfiguration back to the reporting target network according to the radio control resource reconfiguration message.

The first selection subunit selects one of the plurality of normal networks as the reporting target network, including:

or,

The fourth sending subunit is adapted to send a radio link reestablishment request message to the faulty network;

The fourth receiving subunit is adapted to receive a radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The second reconstruction subunit is adapted to perform radio link reestablishment of the faulty network based on the radio link reestablishment message.

In this embodiment, when the reporting target network is an LTE network or a UMTS network, the radio link failure message may be specifically sent by using any one or more of the following messages:

●Measurement report

●Wireless link failure indication

In this embodiment, the reported radio link failure message may include a specific cause value of the failure and/or a measurement result of the terminal to the faulty network; specifically, the radio link failure message may include one or more of the following information. combination:

●Wireless link failure indication

● Reason for failure

●SSID

●BSSID

●RB ID

●UE ID

●MAC

●AID

In this embodiment, when the terminal reports the abnormality of the network, after reporting the radio link failure message of the faulty network to the target network, the terminal may perform at least one of the following operations:

● stopping uplink data transmission in the faulty network;

Stopping downlink data reception in the faulty network;

● performing a deregistration operation from the faulty network;

Dissolving resources in the faulty network;

Deleting configuration information received from the faulty network;

After performing the network rollback, the terminal may report the radio link failure message of the faulty network to the target network, and may perform no additional operations. After the terminal completes the resource reconfiguration according to the radio control resource reconfiguration message, the terminal performs the following operations. At least one operation:

● stopping uplink data transmission in the faulty network;

Stopping downlink data reception in the faulty network;

● performing a deregistration operation from the faulty network;

Dissolving resources in the faulty network;

Deleting configuration information received from the faulty network;

In this embodiment, when the terminal performs the network fallback, the processing module 3 of the terminal completes the resource reconfiguration according to the radio control resource reconfiguration message, and further includes releasing the tight coupling resource between the faulty network (for example, when the faulty network is In the WLAN, the tightly coupled resource includes the IP address bundling; and/or the reported target network (for example, the LTE network) after the terminal completes the resource reconfiguration according to the radio control resource reconfiguration message (specifically, the resource fed back by the terminal) Reconfiguration complete message determination), further comprising releasing tightly coupled resources between the failed network and the failed network (the tightly coupled resources include IP and/or MAC address and/or AID bundling when the reported target network is an LTE network).

In an example of the embodiment, the processing module 3 includes a third re-establishment sub-module; the access module 1 simultaneously accesses the WLAN and the at least one 3GPP network, and the main network exists in the accessed multiple networks. When the detecting module 2 detects that the radio link of the primary network fails, the third re-establishing sub-module is suitable for radio link re-establishment;

The fifth sending subunit is adapted to send a radio link reestablishment request message to the primary network that fails the radio link;

The fifth receiving subunit is adapted to receive a radio link reestablishment message fed back by the primary network according to the radio link reestablishment request message;

The third reconstruction subunit is adapted to perform radio link reestablishment of the primary network based on the radio link reestablishment message.

In an example of the embodiment, the processing module 3 includes a fourth re-establishment sub-module; the access module 1 simultaneously accesses the WLAN and the at least one 3GPP network, and the multiple networks connected are not divided at this time. The primary and secondary networks, when the detecting module 2 detects that the wireless links of the networks accessed by the access module 1 fail, the fourth rebuilding submodule is applicable to the radio link reconstruction;

Specifically, the fourth reconstruction submodule includes a second selection subunit, a sixth transmission subunit, a sixth receiving subunit, and a fourth rebuilding subunit;

The second selection subunit is adapted to select one of the plurality of connected networks as the reconstruction target network;

The sixth sending subunit is adapted to send a radio link reestablishment request message to the reestablishment target network;

The sixth receiving subunit is adapted to receive a radio link reestablishment message fed back by the reestablishment target network according to the radio link reestablishment request message;

The fourth reconstruction subunit is adapted to reestablish the radio link reconstruction of the target network according to the radio link reestablishment message.

The second selection subunit selects one of the multiple networks accessed by the access module 1 as the reconstruction target network, including:

When the network connected to the access module 1 includes an LTE network, the LTE network is selected as the reconstruction target network;

When the network accessed by the access module 1 does not include the LTE network but includes the UMTS network, the UMTS network is selected as the reconstruction target network;

or,

The network with the highest re-establishment priority is selected from the multiple access networks of the access module 1 as the re-establishment target network; where the re-establishment priority of each network is pre-configured, the pre-configuration may be a protocol agreement or configured by the eNB.

It should be understood that the network fallback and link re-establishment scheme shown in this embodiment is applicable to all WLAN offloading schemes in which the WLAN is tightly coupled to the 3GPP network, and is specifically applicable to the PDCP layer of the simplified PDCP layer shunting and dual connectivity architecture. Split, RLC layer split, and MAC layer split.

Obviously, those skilled in the art should understand that the above modules, units or steps can be implemented by a general computing device, which can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by a computing device such that they may be stored in a storage device by a computing device and, in some cases, may be executed in a different order than herein. The steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Therefore, the invention is not limited to any particular combination of hardware and software.

Embodiment 3:

The LTE (Long Term Evolution) system is closely coupled with the WLAN as an example. The technical solutions provided by the embodiments of the present invention are the same.

In the embodiment of the present invention, the terminal UE is in a WLAN/LTE integrated base station, and both the UE and the integrated base station support the WLAN and WLAN tightly coupled WLAN offloading scheme. It is also used for scenarios where the WLAN and the 3GPP network are ideally connected and the dual-connected microcells are tightly coupled to the WLAN.

Depending on the WLAN offloading location of the 3GPP access network and the WLAN, the following is a description of the embodiments of the present invention.

scene one:

The scenario uses a simplified architecture PDCP layer offloading scheme, and the UE maintains a connection with RAT1 (WLAN network) and RAT2 (LTE network) at the same time. The radio link failure reporting and backoff processing process of the self-released resource of the tightly coupled system is as shown in FIG. Show, including:

Step 1001: The UE determines, according to a certain determination rule, that the radio link fails under RAT1.

The determination rule includes a combination of one or more of the following rules:

The wireless signal strength measurement result under RAT1 is lower than the preset signal strength threshold in the first preset time period;

It is detected that the synchronization loss state is under RAT1, and there is no reply within the second preset time period;

A successful data transmission is not completed within the third preset time period under RAT1;

The RLC entity corresponding to the service transmitted by RAT1 is retransmitted to the maximum number of times;

When there is a data transmission requirement in RAT1, no resource transmission opportunity is obtained in the fourth preset time period;

The data transmission time delay in RAT1 is greater than the preset delay time threshold.

Step 1002: The radio resource control layer of the UE sends a RAT2 uplink air interface message including its own radio link failure message to the RAT2 side.

The radio link failure message includes a combination of one or more of the following information:

●Wireless link failure indication

● Reason for failure

●SSID

●BSSID

●RB ID

●UE ID

●MAC

●AID

The reason for the failure is consistent with the judgment.

The RAT2 uplink air interface message in this example may specifically be a radio link failure indication, a measurement report, or a new radio link reconfiguration request.

Step 1003: After the UE reports the radio link failure message in RAT2, the UE adopts one or more combinations of the following operations in RAT1:

Stop uplink data transmission in RAT1;

Stop downlink data reception in RAT1;

The UE performs a deregistration operation from RAT1;

The UE releases the resources in the RAT1;

The UE deletes related configuration information received from the RAT1;

The UE stops the event measurement evaluation and trigger reporting of the cell or AP used when the radio link fails in RAT1;

Step 1004: After the RAT2 side (such as the LTE network) receives the radio link failure message from the UE, the RRC of the RAT2 sends a radio control resource reconfiguration message to the UE;

The radio control resource reconfiguration message mainly causes the UE to fall back to the RAT2, and the specific operation only carries the RAT2 network resource.

Step 1005: The UE receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the network side.

Among them, resource reconfiguration takes the following actions:

The RRC2 network configuration information is included in the radio control resource reconfiguration message, and the UE performs RAT2 network resource configuration.

Step 1006: The RAT2 network side sends an unloading release indication to the RAT1 side.

The RAT2 network side releases the resources related to the tight coupling of the UE, or releases the resources related to the tight coupling of the UE after receiving the response message of the RAT1 side.

Step 1007: The RAT1 side receives the unloading release indication, and the RAT1 side releases some resources, such as an IP address, which are closely coupled with the UE, and then the RAT1 side returns the unloading release complete message to the RAT2 network side.

Scene 2:

In this scenario, the dual-connection architecture PDCP layer is used as the application scenario, and the UE is connected to the RAT1 (WLAN network) and the RAT 2 (LTE network) at the same time. The radio link failure reporting and retreating processing of the self-released resource of the tightly coupled system is as follows: As shown in Figure 11, it includes:

Step 1101: The UE determines, according to a certain determination rule, that the radio link fails under RAT1.

The determination rule refers to the rule of step 1001 above;

Step 1102: The radio resource control layer of the UE sends the radio link failure message including the UE to the RAT2 network side by using the uplink air interface message of the RAT2.

The content included in the radio link failure message refers to scenario one;

The RAT2 uplink air interface message in this example may also specifically be a radio link failure indication, a measurement report, or a new radio link reconfiguration request.

After the UE reports the radio link failure message to the network side, the UE does not perform additional operations, and waits for the RAT2 network side to perform reconfiguration.

Step 1103: The RAT2 network side RRC sends a radio control resource reconfiguration message to the UE;

The radio control resource reconfiguration message mainly causes the UE to fall back to the RAT2 network, and the specific operation may carry the RAT2 network resource and remove the WLAN network resource indication;

Step 1104: The UE receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the RAT2 network side.

Among them, resource reconfiguration takes the following actions:

The radio control resource reconfiguration message includes 3GPP network configuration information, and the UE performs configuration of the 3GPP network resource.

The radio control resource reconfiguration message further includes removing the WLAN network resource indication, and the UE releases the resources in the WLAN, and specifically releasing the WLAN resources to adopt one or more combinations of the following operations:

Stop uplink data transmission in RAT1;

Stop downlink data reception in RAT1;

The UE releases the resources in the RAT1;

The UE deletes related configuration information received from the RAT1;

Step 1105: The UE sends a deregistration indication to the RAT1 side.

Step 1106: The RAT1 side returns to the UE side to complete the registration.

Step 1107: The RAT2 network side sends an unloading release indication to the RAT1 side.

Step 1108: The RAT1 network side returns the unload release completion to the RAT2 network side.

Scene 3:

This scenario uses a MAC layer offloading scheme when the UE is simultaneously connected to RAT1 (WLAN network) and RAT2 (LTE network) and RAT3 (UMTS network). The process of reporting and retreating the failure of the radio link that is released by the resource of the tightly coupled system is as shown in FIG. 12, and includes:

Step 1201: The UE determines that the radio link in the RAT1 fails according to a certain judgment rule. For the specific determination rule, refer to step 1001.

Step 1202: The UE selects, according to a preset rule, a RAT used for reporting a RAT1 radio link failure message, where RAT2 is selected, and then transmits a RAT1 radio link failure message to the RAT2 network side through the RAT2 network uplink air interface message;

Wherein, the above rule may be one or a combination of the following rules:

When LTE is included in a RAT other than RAT1, LTE is reported.

When LTE is not included in the RAT used except RAT1 but UMTS is included, UMTS reporting is used.

The above rules may be built in the UE in advance or configured by the system.

Step 1203: The radio resource control layer of the UE sends the RAT2 uplink air interface message including its own radio link failure message to the RAT2 side.

●Wireless link failure indication

● Reason for failure

●SSID

●BSSID

●RB ID

●UE ID

●MAC

●AID

The reason for the failure is consistent with the judgment.

Step 1204: After the UE reports the radio link failure message in RAT2, the UE adopts one or more combinations of the following operations in RAT1:

Stop uplink data transmission in RAT1;

Stop downlink data reception in RAT1;

The UE performs a deregistration operation from RAT1;

The UE releases the resources in the RAT1;

The UE deletes related configuration information received from the RAT1;

Step 1205: After the RAT2 side (such as the LTE network) receives the radio link failure message from the UE, the RRC of the RAT2 sends a radio control resource reconfiguration message to the UE;

Step 1206: The UE receives the radio control resource reconfiguration message, performs resource reconfiguration, and then sends a radio control resource reconfiguration complete message to the network side.

Among them, resource reconfiguration takes the following actions:

Step 1207: The RAT2 network side sends an unloading release indication to the RAT1 side.

Step 1208: The RAT1 side receives the unloading release indication, and the RAT1 side releases some resources, such as an IP address, which are closely coupled with the UE, and then the RAT1 side returns the unloading release to the RAT2 network side. Complete the message.

Scene 4:

The scenario uses a simplified architecture RLC layer offloading scheme, and the UE maintains connection with RAT1 (WLAN network) and RAT2 (LTE network) at the same time, that is, the UE is attached to the coupled system of RAT1 and RAT2, and RAT1 and RAT2 have no primary or secondary points; The UE detects that both the RAT1 and the RAT2 have failed the radio link. For the process, see Figure 13:

Step 1301: The UE determines that the radio link of the RAT1 and the RAT2 fails according to a certain rule, and the determining rule refers to the rule of the foregoing step 1001.

Step 1302: The UE selects RAT2 as a RAT for radio link reestablishment;

Among them, the rule is as follows:

When the RAT used by the UE includes LTE, the LTE wireless link is reconstructed.

The UMTS radio link is reconstructed when the RAT used by the UE does not include LTE but includes UMTS.

Step 1303: The UE sends a radio link reestablishment request message to the RAT2 network side.

Step 1304: The RAT2 network side feeds back a radio link reestablishment message to the UE.

Step 1305: The UE receives a radio link reestablishment message fed back by the RAT2 network, and performs radio link reestablishment of the RAT2 network according to the radio link reestablishment message.

Scene 5:

The scenario also uses a simplified architecture RLC layer offloading scheme. The UE remains connected to both RAT1 (WLAN network) and RAT2 (LTE network), that is, the UE is attached to the coupled system of RAT1 and RAT2, and RAT2 is the primary RAT; the UE detects When the radio link fails on RAT2, the process at this time is shown in Figure 14.

Step 1401: The UE determines, according to a certain rule, that the radio link of the RAT2 fails, and the determining rule refers to the rule of step 1001.

Step 1402: The UE stops data transmission in RAT1 and RAT2 at the same time;

Step 1403: The UE sends a radio link reestablishment request message to the RAT2 network side.

Step 1404: The RAT2 network side feeds back a radio link reestablishment message to the UE.

Step 1405: The UE receives a radio link reestablishment message fed back by the RAT2 network, and performs radio link reestablishment of the RAT2 network according to the radio link reestablishment message.

Industrial applicability

The network resource adjustment method and the terminal between the access technology networks provided by the embodiments of the present invention trigger network resource adjustment (such as performing network wire abnormal reporting, network fallback, or when the wireless link of the at least one network fails to be detected). Link rebuilding, etc., to avoid serious data delay and packet loss, to ensure the quality of the user's service, and to improve the satisfaction of the user experience.

Claims

A method for adjusting network resources between access technology networks, comprising:

The terminal simultaneously accesses the wireless local area network and the at least one 3GPP network;

When the terminal detects that the wireless link of the accessed at least one network fails, the network resource adjustment process is triggered.
The method of claim 1, wherein when the terminal simultaneously accesses the WLAN and a 3GPP network, and the terminal detects that the wireless link of the accessed one of the networks fails, the performing network resource adjustment includes : network abnormal reporting or wireless link re-establishment; wherein the network that fails the radio link is a faulty network, and the normal network is reported to the target network;

The abnormal reporting of the network includes:

The terminal reports a radio link failure message of the faulty network to the reporting target network;

The wireless link reconstruction includes:

Transmitting, by the terminal, a radio link reestablishment request message to the faulty network;

Receiving, by the terminal, the radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The terminal performs radio link reestablishment of the faulty network according to the radio link reestablishment message.
The method according to claim 1, wherein when the terminal simultaneously accesses the WLAN and the at least two 3GPP networks, and the terminal detects that the wireless link of the accessed one of the networks fails, the network resource adjustment is performed. Including: network abnormal reporting or wireless link re-establishment; wherein the network that fails the wireless link is a faulty network, and the other networks are normal networks;

The abnormal reporting of the network includes:

The terminal selects one of the plurality of normal networks as the reporting target network;

The terminal reports a radio link failure message of the faulty network to the reporting target network;

The wireless link reconstruction includes:

Transmitting, by the terminal, a radio link reestablishment request message to the faulty network;

Receiving, by the terminal, the wireless link fed back by the faulty network according to the radio link reestablishment request message Rebuilding the message;

The terminal performs radio link reestablishment of the faulty network according to the radio link reestablishment message.
The method of claim 3, wherein, when performing network abnormal reporting, the terminal selecting one of the plurality of normal networks as the reporting target network comprises:

When the LTE network is included in the multiple normal networks, the LTE network is selected as the reporting target network;

When the LTE network is not included in the multiple normal networks but includes the UMTS network, the UMTS network is selected as the reporting target network;

or,

The network with the highest priority is selected as the reporting target network from the plurality of normal networks; the reporting priority of the multiple networks is pre-configured.
The method according to any one of claims 2 to 4, wherein, when the network abnormality reporting is performed, the terminal reports the wireless link failure message of the faulty network to the reporting target network, and further includes a network fallback process, including:

Receiving, by the terminal, the radio control resource reconfiguration message fed back by the reporting target network according to the WLAN radio link failure message, where the radio control resource reconfiguration message only includes the reported target network resource information;

The terminal completes resource reconfiguration according to the radio control resource reconfiguration message, and falls back to the reporting target network.
The method according to claim 5, wherein, when performing network fallback, after the terminal completes resource reconfiguration according to the radio control resource reconfiguration message, the terminal further includes releasing tightly coupled resources with the faulty network; and And after the terminal completes resource reconfiguration according to the radio control resource reconfiguration message, the reporting target network further includes releasing a tight coupling resource with the faulty network.
The method of claim 5, wherein after the terminal reports the radio link failure message of the faulty network to the reporting target network, or after the terminal completes resource reconfiguration according to the radio control resource reconfiguration message, the terminal further Do at least one of the following:

Stop uplink data transmission in the faulty network;

Stopping downlink data reception in the faulty network;

Performing a deregistration operation from the faulty network;

Releasing resources in the faulty network;

Deleting configuration information received from the faulty network;

The event measurement evaluation and trigger reporting of the cell or the wireless access point used when the radio link fails in the faulty network is stopped.
The method of claim 1, wherein the terminal simultaneously accesses the WLAN and the at least one 3GPP network, and the primary network exists in the plurality of accessed networks, and when the wireless link of the primary network fails, Performing network resource adjustment includes wireless link reconstruction;

The wireless link reconstruction includes:

The terminal sends a radio link reestablishment request message to the primary network that fails the radio link;

Receiving, by the terminal, a radio link reestablishment message fed back by the primary network according to the radio link reestablishment request message;

The terminal performs radio link reestablishment of the primary network according to the radio link reestablishment message.
The method of claim 1, wherein the terminal simultaneously accesses the WLAN and the at least one 3GPP network, and detects that the wireless link of each network accessed by the terminal fails, the network resource adjustment Including wireless link reconstruction;

The wireless link reconstruction includes:

The terminal selects one of the multiple networks that are accessed as the reconstruction target network;

Transmitting, by the terminal, a radio link reestablishment request message to the reestablishment target network;

Receiving, by the terminal, a radio link reestablishment message fed back by the reestablishment target network according to the radio link reestablishment request message;

The terminal performs radio link reestablishment of the reestablishment target network according to the radio link reestablishment message.
The method of claim 9, wherein the selecting, by the terminal, one of the plurality of connected networks as the reconstruction target network comprises:

When the network connected to the terminal includes the LTE network, the LTE network is selected as the reconstruction target network;

When the network accessed by the terminal does not include the LTE network but includes the UMTS network, the UMTS network is selected as the reconstruction target network;

or,

The network with the highest reconstruction priority is selected from the plurality of accessed networks as the reconstruction target network; the reconstruction priorities of the multiple networks are pre-configured.
The method according to any one of claims 1-4, 8-10, wherein the terminal detects that one of the following conditions or at least two combinations of the network to which the terminal is connected determines that the wireless link fails in the network. :

The wireless signal strength measurement result under the network is lower than the preset signal strength threshold in the first preset time period;

Detecting that the synchronization is lost under the network, and there is no reply within the second preset time period;

A successful data transmission is not completed within the third preset time period;

The RLC entity corresponding to the service transmitted by the network is retransmitted to the maximum number of times;

When there is a data transmission requirement in the network, no resource transmission opportunity is obtained in the fourth preset time period;

The data transmission time delay in the network is greater than the preset delay time threshold.
A terminal includes an access module, a detection module, and a processing module:

The access module is configured to simultaneously access a wireless local area network and at least one 3GPP network;

The detecting module is configured to detect whether the wireless link fails in the at least one network accessed by the access module;

The processing module is configured to trigger a network resource adjustment process when the detecting module detects that the at least one network radio link accessed by the access module fails.
The terminal according to claim 12, wherein the processing module comprises a first network exception processing sub-module or a first reconstruction sub-module; the access module simultaneously accesses a wireless local area network and a 3GPP network, and the detecting When the module detects that the wireless link of one of the networks accessed by the access module fails, the first network abnormality processing sub-module performs network abnormal reporting, or the first reconstruction sub-module performs wireless link reconstruction; The wireless link failed network is a faulty network, normal The network is reported to the target network;

The first network exception processing submodule includes a first sending subunit;

The first sending subunit is configured to report a radio link failure message of the faulty network to the reporting target network;

The first reconstruction sub-module includes a second transmission sub-unit, a second reception sub-unit, and a first reconstruction sub-unit;

The second sending subunit is configured to send a radio link reestablishment request message to the faulty network;

The second receiving subunit is configured to receive a radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The first reconstruction subunit is configured to perform radio link reestablishment of the faulty network according to the radio link reestablishment message.
The terminal according to claim 13, wherein the first network exception processing sub-module further comprises a first receiving sub-unit and a first re-matching sub-unit;

The first receiving subunit is configured to receive a radio control resource reconfiguration message fed back by the reporting target network according to the WLAN radio link failure message, where the radio control resource reconfiguration message only includes the reporting target network Resource information

The first reconfiguration subunit is configured to complete resource reconfiguration according to the radio control resource reconfiguration message, and roll back to the reporting target network.
The terminal according to claim 12, wherein the processing module comprises a second network abnormality processing submodule or a second reconstruction submodule; when the access module simultaneously accesses a wireless local area network and at least two 3GPP networks, And the detecting module detects that the wireless link of the network accessed by the access module fails, the second network abnormality processing sub-module performs network abnormal reporting, or the second reconstruction sub-module wireless link Reconstruction; wherein the network that fails the wireless link is a faulty network, and the other network is a normal network;

The second network exception processing sub-module includes a first selection sub-unit and a third transmission sub-unit;

The first selection subunit is configured to select one of the plurality of normal networks as the reporting target network;

The third sending subunit is configured to report a radio link failure message of the faulty network to the reporting target network;

The second reconstruction sub-module includes a fourth transmission sub-unit, a fourth reception sub-unit, and a second reconstruction sub-unit;

The fourth sending subunit is configured to send a radio link reestablishment request message to the faulty network;

The fourth receiving subunit is configured to receive a radio link reestablishment message fed back by the faulty network according to the radio link reestablishment request message;

The second reconstructor is configured to perform radio link reestablishment of the faulty network according to the radio link reestablishment message.
The terminal according to claim 15, wherein the second network exception processing sub-module further comprises a third receiving sub-unit and a third re-matching sub-unit;

The third receiving subunit is configured to receive a radio control resource reconfiguration message fed back by the reporting target network according to the WLAN radio link failure message, where the radio control resource reconfiguration message includes only the reporting target network Resource information

The third reconfiguration subunit is configured to complete resource reconfiguration according to the radio control resource reconfiguration message, and roll back to the reporting target network.
The terminal according to claim 12, wherein the processing module comprises a third re-establishment sub-module; the access module simultaneously accesses a WLAN and at least one 3GPP network, and exists in the accessed multiple networks a primary network, where the detecting module detects that the wireless link of the primary network fails, the third reestablishing submodule is configured to perform radio link reestablishment;

The third reconstruction sub-module includes a fifth transmission sub-unit, a fifth reception sub-unit, and a third reconstruction sub-unit;

The fifth sending subunit is configured to send a radio link reestablishment request message to the primary network that fails the radio link;

The fifth receiving subunit is configured to receive a radio link reestablishment message fed back by the primary network according to the radio link reestablishment request message;

The third reconstruction subunit is configured to perform the primary network according to the wireless link reestablishment message Wireless link reconstruction.
The terminal according to claim 12, wherein the processing module comprises a fourth reconstruction sub-module; the access module simultaneously accesses a wireless local area network and at least one 3GPP network, and the detection module detects the access The fourth re-establishment sub-module is configured to perform radio link re-establishment when the radio link of each network accessed by the module fails.

The fourth reconstruction sub-module includes a second selection sub-unit, a sixth transmission sub-unit, a sixth receiving sub-unit, and a fourth re-establishing sub-unit;

The second selection subunit is configured to select one of the accessed multiple networks as a reconstruction target network;

The sixth sending subunit is configured to send a radio link reestablishment request message to the reestablishment target network;

The sixth receiving subunit is configured to receive a radio link reestablishment message fed back by the reestablishment target network according to the radio link reestablishment request message;

The fourth reconstruction subunit is configured to perform radio link reconstruction of the reestablishment target network according to the radio link reestablishment message.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-11.