CN112423317B - Different network switching processing method, information configuration method, user equipment and network equipment - Google Patents
Different network switching processing method, information configuration method, user equipment and network equipment Download PDFInfo
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- CN112423317B CN112423317B CN201910783983.3A CN201910783983A CN112423317B CN 112423317 B CN112423317 B CN 112423317B CN 201910783983 A CN201910783983 A CN 201910783983A CN 112423317 B CN112423317 B CN 112423317B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
Abstract
The invention provides a different network switching processing method, an information configuration method, user equipment and network equipment, and solves the problems of large time delay and large signaling overhead when UE in an inactive state moves between different networks and enters a connected state. The method comprises the following steps: obtaining RNA configured for user equipment by a first network, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different RATs; under the condition that the user equipment is in an inactive state and moves from a first network to a first cell of a second network, the user equipment switches the self state from the inactive state to an idle state, forbids to initiate a TAU process and keeps user context information when the user equipment is in the inactive state in the first network; wherein the first cell is a cell within the RNA. The invention can shorten the connection recovery time delay and reduce the signaling overhead of the user equipment entering the connection state when the user equipment in the non-activated state moves among different networks.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method for processing heterogeneous network handover, a method for configuring information, a user equipment, and a network device.
Background
With the development of wireless communication systems, terminal types and service types are diversified, and the terminal saves power, saves network resources, and meets the requirements of various service types. In order to ensure power saving and fast data transmission of a terminal at the same time, a terminal state "inactive state" is introduced into a New Radio (NR) system of a 5G (5th generation mobile communication technology), and in this state, a UE (User Equipment) keeps a core Network connection but does not perform conventional operations (such as handover, uplink timing update, Radio link monitoring, and the like) in an air interface connection state, and does not allocate a terminal Identifier (such as a C-RNTI (Radio Network Temporary Identifier)) directly used for air interface transmission, and therefore cannot directly perform air interface scheduling transmission. In the inactive state, the UE needs to monitor the paging message to ensure that the call from the network side can be received.
When the inactive UE moves from the NR system to another system (e.g., LTE (Long Term Evolution)/LTE (enhanced Long Term Evolution), the UE enters an idle state (i.e., idle state) and releases the NR inactive context information held by the terminal. In this way, when the UE returns to NR from another system, the UE can only enter the NR idle state and cannot directly return to the inactive state, which causes a delay of the subsequent UE entering the connected state to be increased, and the network also needs to establish a connection for the UE again, which results in a large signaling overhead.
Disclosure of Invention
The invention aims to provide a method for processing heterogeneous network switching, a method for configuring information, user equipment and network equipment, which are used for solving the problems of large time delay and large signaling overhead when inactive UE moves between heterogeneous networks in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a method for processing a handover between different networks, where the method is applied to a user equipment, and the method includes:
acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network;
wherein the first cell is a cell within the RNA.
Wherein, when the ue is in an inactive state and moves from the first network to a first cell of the second network, the ue switches its own state from the inactive state to an idle state, prohibits initiating a tracking area update TAU procedure, and retains user context information of the ue in the inactive state in the first network, and the method further comprises:
under the condition that the user equipment moves from the second network to a second cell of the first network again, the user equipment restores the self state to the non-activated state and continues to monitor a Radio Access Network (RAN) paging message sent by the first network;
wherein the second cell is a cell within the RNA.
Wherein, when the ue is in an inactive state and moves from the first network to a first cell of the second network, the ue switches its own state from the inactive state to an idle state, prohibits initiating a tracking area update TAU procedure, and retains user context information of the ue in the inactive state in the first network, and the method further comprises:
and deleting the user context information when the user equipment is in an inactive state in the first network under the condition that the user equipment receives a paging message or actively initiates a connection establishment process with the second network.
After obtaining the access network notification region RNA configured by the first network for the user equipment in the inactive state, the method further includes:
under the condition that the user equipment is in an inactive state and moves from the first network to a third cell of the second network, the user equipment switches the self state from the inactive state to an idle state; initiating a TAU process; deleting the user context information of the user equipment in an inactive state in the first network;
wherein the third cell is a cell other than the RNA.
Wherein the method further comprises:
updating the RNA in the event that the user equipment moves from the second network to a fourth cell of the first network anew, the fourth cell being a cell other than the RNA.
Wherein the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Wherein the cell of the second network comprises: the cells in the area list are tracked.
In order to achieve the above object, an embodiment of the present invention further provides an information configuration method, which is applied to a network device, where the network device is a network device in a first network, and the method includes:
configuring an access network notification region RNA for a user equipment, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
Wherein the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Wherein the cell of the second network comprises: the cells in the area list are tracked.
In order to achieve the above object, an embodiment of the present invention further provides a user equipment, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor implements the following steps when executing the program:
acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network;
wherein the first cell is a cell within the RNA.
Wherein the processor, when executing the program, further implements the steps of:
under the condition that the user equipment moves from the second network to a second cell of the first network again, the user equipment restores the self state to the non-activated state and continues to monitor a Radio Access Network (RAN) paging message sent by the first network;
wherein the second cell is a cell within the RNA.
Wherein the processor, when executing the program, further implements the steps of:
and deleting the user context information when the user equipment is in an inactive state in the first network under the condition that the user equipment receives a paging message or actively initiates a connection establishment process with the second network.
Wherein the processor, when executing the program, further implements the steps of:
under the condition that the user equipment is in an inactive state and moves from the first network to a third cell of the second network, the user equipment switches the self state from the inactive state to an idle state; initiating a TAU process; deleting the user context information of the user equipment in an inactive state in the first network;
wherein the third cell is a cell other than the RNA.
Wherein the processor, when executing the program, further implements the steps of: updating the RNA in the case that the user equipment moves from the second network to a fourth cell of the first network again, wherein the fourth cell is a cell other than the RNA.
Wherein the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Wherein the cell of the second network comprises: the cells in the area list are tracked.
In order to achieve the above object, an embodiment of the present invention further provides a user equipment, including:
an obtaining module, configured to obtain an access network notification area RNA configured by a first network for a user equipment, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
a first processing module, configured to switch a self state from an inactive state to an idle state, prohibit initiating a tracking area update TAU procedure, and reserve user context information when the user equipment is in the inactive state in the first network, when the user equipment is in the inactive state and moves from the first network to a first cell of the second network;
wherein the first cell is a cell within the RNA.
In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for processing the handover between different networks as described above.
In order to achieve the above object, an embodiment of the present invention further provides a network device, where the network device is a network device in a first network, and the network device includes: a transceiver, a memory, a processor and a program stored on the memory and executable on the processor, the processor for reading the program in the memory and performing the following processes:
configuring an access network notification region RNA for a user equipment, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
Wherein the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Wherein the cell of the second network comprises: the cells in the area list are tracked.
In order to achieve the above object, an embodiment of the present invention further provides a network device, where the network device is a network device in a first network, and the network device includes:
a configuration module configured to configure an access network notification area RNA for a user equipment, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the information configuring method as described above.
The technical scheme of the invention at least has the following beneficial effects:
in the above technical solution of the embodiment of the present invention, an access network notification area RNA configured for a user equipment by a first network is obtained, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs; when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network; the first cell is a cell in the RNA, so that when the user equipment in the non-activated state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering the connected state is reduced.
Drawings
FIG. 1 is a schematic diagram of inter-RAT network architecture for eLTE and NR of the prior art;
FIG. 2 is a schematic diagram of an inter-RAT network architecture for LTE and NR of the prior art;
fig. 3 is a schematic flow chart of a method for processing a handover between different networks according to an embodiment of the present invention;
FIG. 4 is a schematic view of a scenario in which inactive UE enters an eLTE/LTE network from an NR network according to an embodiment of the present invention;
FIG. 5 is a schematic view of a scenario in which a UE moves back from an eLTE/LTE network to an NR network according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating an information configuring method according to an embodiment of the present invention;
fig. 7 is a block diagram of a user equipment according to an embodiment of the present invention;
fig. 8 is a block diagram of a ue according to an embodiment of the present invention;
fig. 9 is a block diagram of a network device according to an embodiment of the present invention;
fig. 10 is a block diagram of a network device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
First, before describing the implementation of the method of the present invention, it should be noted that the method of the present invention can be applied to the NR and LTE/LTE cross radio access technology (inter-RAT) network architecture as shown in fig. 1 and as shown in fig. 2.
Specifically, as shown in fig. 1, the inter-RAT network architecture of the lte and NR is shown, wherein the NR base station gNB and the lte base station lte eNB are both connected to a 5G NGC (NextGen Core, next generation Core network). As can be seen, the gNB and the eNB are both connected to the NGC through a UP (User Plane) interface and a CP (Control Plane) interface.
As shown in fig. 2, for the inter-RAT network architecture of LTE and NR, the NR base station gNB is connected to the 5G NGC, while the LTE base station LTE eNB is connected to the 4G EPC (Evolved Packet Core).
Here, both of the above-described architectures provided in fig. 1 and 2 are inter-RAT network architectures. When an inactive UE moves from an NR network to an LTE/LTE network, it is the mobility performed under the two network architectures. The following is a detailed description of the process of the invention with reference to FIG. 3.
As shown in fig. 3, a schematic flowchart of a method for processing handover between different networks according to an embodiment of the present invention is applied to a user equipment, and includes:
step 301: acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
in this step, preferably, the RNA configured by the base station of the first network for the user equipment is obtained.
Here, optionally, the first network is an NR network and the second network is an LTE/LTE network.
Optionally, the cell of the first network comprises at least one of:
cells in a cell list;
the access network notifies the cells in the area list RNA list;
the cells in the area list TA list are tracked.
Optionally, the cell of the second network includes: the cells in the area list TA list are tracked.
The core network level (CN level) location Area, that is, the UE location Area controlled by the core network, is referred to as a Tracking Area (TA). The existing core network always configures a TA list for the UE through a NAS (Non Access Stratum) message. The UE stores a TA List configured by a core network, when residing (in an idle state) or accessing (in a connected state) a cell, reads a system message broadcasted by a cell air interface, obtains information from the TA, if the TA is not stored in a TA List, the UE initiates a TAU (Tracking Area Update) process, and acquires a new TA List through interaction with NAS signaling of the core network.
Before the inactive state is not introduced, the UE only has an idle state and a connected state, the position area of the UE in the idle state is TA, and the position area in the connected state is a cell. After the inactive state is introduced, a radio access network level (RAN level) location Area RNA (RAN Notification Area, access network Notification Area list) is introduced for the UE, and the RNA may include a plurality of cells. A RAN network side node (gNB) may send notification messages to find UEs in multiple cells within an RNA region. When the UE moves out of an RNA, RNA update is needed so that the RAN network side node can find the UE.
The TA and RNA are UE location areas maintained by the core network node and the RAN node, respectively, and function to enable the core network node and the RAN node to track the location areas of the UE, respectively. When the UE is in an idle state, the core network searches the UE by sending paging messages in all cells under a TA list area of the UE; when the UE is in an inactive state, the RAN node gNB searches the UE by sending a notification message notification in all cells in an RNA region.
Step 302: when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network; wherein the first cell is a cell within the RNA.
In this step, that is, when the ue is in an inactive state, and moves from the first network to the second network, and the entering cell is in an RNA configured by the first network for the ue, here, if the first network is an NR network and the second network is an LTE/LTE network, the entering cell is in a TA list of the LTE/LTE, the ue enters an idle state, does not make a TAU, and still maintains the user context information when the ue is in the inactive state in the first network.
Here, the user context information in the inactive state specifically refers to AS (Access Stratum) context information of the UE in the inactive state, and may include: storing an inactive phase included in a Radio Resource Control (RRC) release messageConfiguration information, configuration parameters in RRC reconfiguration message or RRC recovery message, current secret key K gNB And K RRCint The Cell Identifier is set to be in a state of Robust Header Compression (ROHC), a state of ROHC (Robust Header Compression), a PCI (Physical Cell Identifier)/Cell Identifier of a primary serving Cell before entering an inactive state, and a C-RNTI used before entering the inactive state.
It should be noted that, after the ue is in the inactive state, the RNA configured by the base station in the first network (e.g. NR network) for the ue is reserved.
It should be noted that the ue enters an idle state, does not perform TAU, but still monitors a paging message sent by the core network device. Here, the core network device is a core network device in the second network.
The execution of the above steps will be described in detail with reference to fig. 4.
Example I, inactive state UE enters eLTE/LTE network from NR network
Firstly, the UE enters an inactive state in an NR network, and the gNB configures an RNA region including a cell of the NR network and a cell of an eLTE/LTE network for the inactive state UE; then, the UE in the inactive state moves from the NR network to the LTE/LTE network, and the cell where the UE enters is in the RNA area configured by the gNB for the inactive state UE (i.e. in the cell of the LTE/LTE network, specifically, in the TA list of the LTE/LTE network), the UE enters the idle state, prohibits initiating the TAU procedure, monitors the paging message sent by the core network, and retains the user context information when the UE is in the inactive state in the NR network.
It should be noted that this example is applicable to the network architectures shown in fig. 1 and 2.
In the method for processing inter-network handover according to the embodiment of the present invention, an access network notification area RNA configured for a user equipment by a first network is obtained, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs; when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network; the first cell is a cell in the RNA, so that when the user equipment in the non-activated state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering the connected state is reduced.
Based on the embodiment shown in fig. 3, as an optional implementation manner, after step 302, the method further includes:
under the condition that the user equipment moves from the second network to a second cell of the first network again, the user equipment restores the self state to the non-activated state and continues to monitor a Radio Access Network (RAN) paging message sent by the first network; wherein the second cell is a cell within the RNA.
In this step, since the ue retains the user context information when the ue is in the inactive state in the first network under the condition that the second network is in the idle state, when the ue moves from the second network to the second cell of the first network again and the second cell is in the RNA configured for the ue by the first network, the state of the ue can directly and quickly recover to the inactive state, and the RAN paging message sent by the first network is monitored continuously, so that the time delay of the ue entering the connected state can be shortened, and the signaling overhead of the ue entering the connected state can be reduced.
The execution of the above steps will be described in detail with reference to fig. 5.
Example two, UE moves from eLTE/LTE network back to NR network
First, the aforementioned behavior of the UE is the same as that of the example one, and the UE keeps idle state (not entering connected state) in the LTE/LTE network all the time and still keeps the UE context information when the UE is in inactive state in the NR network, then when the UE moves back to a cell in the NR network from the LTE/LTE network and the cell entered by the UE is within the RNA area configured for the UE by the previous gNB (i.e. in the cell of the NR network, specifically, in the cell list of the NR network), the UE resumes inactive state and continues to listen to the RAN paging of the NR network.
It should be noted that this example is applicable to the network architectures shown in fig. 1 and 2.
Based on the embodiment shown in fig. 3, as an optional implementation manner, after step 302, the method further includes:
and deleting the user context information when the user equipment is in an inactive state in the first network under the condition that the user equipment receives a paging message or actively initiates a connection establishment process with the second network.
Here, the example one may be continued, that is, after the UE enters an idle state, prohibits initiating a TAU procedure, monitors a paging message sent by the core network, and retains user context information when the UE is in an inactive state in the NR network, and subsequently, if the UE receives a paging of the core network, or the UE actively initiates a connection establishment procedure with the LTE/LTE network, the UE deletes the user context information in the inactive state obtained in the NR.
Based on the embodiment shown in fig. 3, as an optional implementation manner, after step 301, the method further includes:
under the condition that the user equipment is in an inactive state and moves from the first network to a third cell of the second network, the user equipment switches the self state from the inactive state to an idle state; initiating a TAU process; deleting the user context information of the user equipment in an inactive state in the first network; wherein the third cell is a cell other than the RNA.
The following proceeds to the specific description of the execution of the above steps with respect to fig. 4.
Example three, inactive state UE enters eLTE/LTE network from NR network
Firstly, the UE enters an inactive state in an NR network, and the gNB configures an RNA region including a cell of the NR network and a cell of an eLTE/LTE network for the inactive state UE; then, the UE in the inactive state moves from the NR network to the LTE/LTE network, but the cell where the UE enters is outside the RNA region configured by the gNB for the inactive state UE (i.e. not in the cell of the LTE/LTE network, specifically not in the TA list of the LTE/LTE network), the UE enters the idle state, initiates the TAU procedure, and deletes the user context information in the inactive state obtained by the UE in the NR.
It should be noted that this example is applicable to the network architectures shown in fig. 1 and 2.
Based on the embodiment shown in fig. 3, as an optional implementation manner, after step 302, the method further includes:
updating the RNA in the case that the user equipment moves from the second network to a fourth cell of the first network again, wherein the fourth cell is a cell other than the RNA.
The following proceeds to a detailed description of the execution of the above steps with respect to fig. 5.
Example four, UE moves from eLTE/LTE network back to NR network
First, the aforementioned behavior of the UE is the same as in the first example, and the UE keeps idle state (not entering connected state) in the LTE/LTE network all the time and still keeps the user context information when the UE is in inactive state in the NR network, then when the UE moves back to a cell in the NR network from the LTE/LTE network, but the cell where the UE enters is outside the RNA region configured for the UE by the previous gNB (i.e. not in the cell of the NR network), the UE performs the RNA update process.
In the method for processing inter-network handover according to the embodiment of the present invention, an access network notification area RNA configured for a user equipment by a first network is obtained, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs; when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network; the first cell is a cell in the RNA, so that when the user equipment in the non-activated state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering the connected state is reduced.
As shown in fig. 6, a schematic flow chart of the information configuration method provided in the embodiment of the present invention is applied to a network device, where the network device is a network device in a first network, and the method includes:
step 601: configuring an access network notification region RNA for a user equipment, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
In this step, preferably, the network device is a base station in the first network.
Here, optionally, the first network is an NR network and the second network is an LTE/LTE network.
In the information configuration method of the embodiment of the invention, the user equipment is configured with the RNA of the access network notification area, and the RNA comprises: the network comprises a cell of a first network and a cell of a second network, wherein the first network and the second network are based on different Radio Access Technologies (RAT), so that when user equipment in an inactive state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering a connected state is reduced.
Optionally, the cell of the first network comprises at least one of:
cells in a cell list;
the access network notifies the cells in the area list RNA list;
the cells in the area list TA list are tracked.
Optionally, the cell of the second network includes: the cells in the area list TA list are tracked.
In the information configuration method of the embodiment of the invention, the user equipment is configured with the RNA of the access network notification area, and the RNA comprises: the method comprises the steps that a first network cell and a second network cell are based on different Radio Access Technologies (RAT), so that connection recovery time delay can be shortened and signaling overhead of user equipment entering a connection state can be reduced when the user equipment in an inactive state moves between different networks.
As shown in fig. 7, an embodiment of the present invention further provides a user equipment, which includes a memory 720, a processor 700, a transceiver 710, a bus interface, and a program stored on the memory 720 and operable on the processor 700, where the processor 700 is configured to read the program in the memory 720 and execute the following processes:
acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network;
wherein the first cell is a cell within the RNA.
Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 730 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
Optionally, the processor 700 further implements the following steps when executing the program:
under the condition that the user equipment moves from the second network to a second cell of the first network again, the user equipment restores the self state to the non-activated state and continues to monitor a Radio Access Network (RAN) paging message sent by the first network; wherein the second cell is a cell within the RNA.
Optionally, the processor 700 further implements the following steps when executing the program:
and deleting the user context information when the user equipment is in an inactive state in the first network under the condition that the user equipment receives a paging message or actively initiates a connection establishment process with the second network.
Optionally, the processor 700 further implements the following steps when executing the program:
under the condition that the user equipment is in an inactive state and moves from the first network to a third cell of the second network, the user equipment switches the self state from the inactive state to an idle state; initiating a TAU process; deleting the user context information of the user equipment in an inactive state in the first network; wherein the third cell is a cell other than the RNA.
Optionally, the processor 700 further implements the following steps when executing the program:
updating the RNA in the case that the user equipment moves from the second network to a fourth cell of the first network again, wherein the fourth cell is a cell other than the RNA.
Optionally, the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Optionally, the cell of the second network includes: tracking cells in the area list.
The embodiment of the present invention further provides a ue, and as the principle of the ue for solving the problem is similar to the method for processing the inter-network handover in the embodiment of the present invention, the implementation of the ue may refer to the implementation of the method, and the repeated parts are not described again.
In the ue of the embodiment of the present invention, the RNA of the access network notification area configured for the ue by the first network is acquired, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs; when the user equipment is in an inactive state and moves from the first network to a first cell of the second network, the first processing module switches the self state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the user equipment is in the inactive state in the first network; the first cell is a cell in the RNA, so that when the user equipment in the non-activated state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering the connected state is reduced.
It should be noted that, the ue provided in the embodiment of the present invention is a ue capable of executing the method for processing handover between different networks, and all embodiments of the method for processing handover between different networks are applicable to the ue and all can achieve the same or similar beneficial effects.
As shown in fig. 8, an embodiment of the present invention further provides a user equipment, including:
an obtaining module 801, configured to obtain an access network notification area RNA configured by a first network for a user equipment, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
a first processing module 802, configured to, when the ue is in an inactive state and moves from the first network to a first cell of the second network, switch a state of the ue from the inactive state to an idle state, prohibit initiating a tracking area update TAU procedure, and keep user context information of the ue when the ue is in the inactive state in the first network; wherein the first cell is a cell within the RNA.
The user equipment of the embodiment of the invention further comprises:
a second processing module, configured to, when the ue moves from the second network to a second cell of the first network again, restore the ue's own state to the inactive state, and continue to monitor a radio access network RAN paging message sent by the first network; wherein the second cell is a cell within the RNA.
The user equipment of the embodiment of the invention further comprises:
a third processing module, configured to delete the user context information when the ue is in an inactive state in the first network when the ue receives a paging message or actively initiates a connection establishment procedure with the second network.
The user equipment of the embodiment of the invention further comprises:
a fourth processing module, configured to switch a self state of the ue from an inactive state to an idle state when the ue is in the inactive state and moves from the first network to a third cell of the second network; initiating a TAU process; deleting the user context information of the user equipment in an inactive state in the first network; wherein the third cell is a cell other than the RNA.
The user equipment of the embodiment of the invention further comprises:
a fifth processing module, configured to update the RNA when the user equipment moves from the second network to a fourth cell of the first network again, where the fourth cell is a cell other than the RNA.
Optionally, the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Optionally, the cell of the second network includes: the cells in the area list are tracked.
The embodiment of the present invention further provides a ue, and as the principle of the ue for solving the problem is similar to the method for processing the inter-network handover in the embodiment of the present invention, the implementation of the ue may refer to the implementation of the method, and the repeated parts are not described again.
In the ue of the embodiment of the present invention, an obtaining module obtains an access network notification area RNA configured for the ue by a first network, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs; when the user equipment is in an inactive state and moves from the first network to a first cell of the second network, the first processing module switches the self state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the user equipment is in the inactive state in the first network; the first cell is a cell in the RNA, so that when the user equipment in the non-activated state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering the connected state is reduced.
It should be noted that, the ue provided in the embodiment of the present invention is a ue capable of executing the method for processing handover between different networks, and all embodiments of the method for processing handover between different networks are applicable to the ue and all can achieve the same or similar beneficial effects.
In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiating a Tracking Area Update (TAU) process, and retains user context information when the UE is in the inactive state in the first network;
wherein the first cell is a cell within the RNA.
When executed by the processor, the program can implement all the implementation manners applied to the method embodiments of the ue side shown in fig. 1 to fig. 5, and for avoiding repetition, the details are not described here again.
As shown in fig. 9, an embodiment of the present invention further provides a network device, including: a transceiver 910, a memory 920, a processor 900 and a program stored on the memory and executable on the processor, the processor 900 being configured to read the program in the memory 920 and execute the following processes:
configuring an access network notification region RNA for a user equipment, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
In fig. 9, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 900, and various circuits, represented by memory 920, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 910 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.
Optionally, the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
Optionally, the cell of the second network includes: the cells in the area list are tracked.
The embodiment of the invention also provides a network device, and as the principle of solving the problem of the network device is similar to the information configuration method in the embodiment of the invention, the implementation of the network device can refer to the implementation of the method, and the repeated parts are not repeated.
In the network device of the embodiment of the present invention, the user equipment is configured with an access network notification area RNA, where the RNA includes: the network comprises a cell of a first network and a cell of a second network, wherein the first network and the second network are based on different Radio Access Technologies (RAT), so that when user equipment in an inactive state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering a connected state is reduced.
It should be noted that, the network device provided in the embodiments of the present invention is a network device capable of executing the information configuration method, and all embodiments of the information configuration method are applicable to the network device and can achieve the same or similar beneficial effects.
As shown in fig. 10, the present invention further provides a network device, where the network device is a network device in a first network, and includes:
a configuring module 1001, configured to configure an access network notification area RNA for a user equipment, where the RNA includes: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
Optionally, the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
tracking cells in the area list.
Optionally, the cell of the second network includes: the cells in the area list are tracked.
The embodiment of the invention also provides a network device, and as the principle of solving the problem of the network device is similar to the information configuration method in the embodiment of the invention, the implementation of the network device can refer to the implementation of the method, and the repeated parts are not repeated.
In the network device of the embodiment of the present invention, the configuration module configures an access network notification area RNA for the user equipment, where the RNA includes: the network comprises a cell of a first network and a cell of a second network, wherein the first network and the second network are based on different Radio Access Technologies (RAT), so that when user equipment in an inactive state moves among different networks, the connection recovery time delay is shortened, and the signaling overhead of the user equipment entering a connected state is reduced.
It should be noted that, the network device provided in the embodiments of the present invention is a network device capable of executing the information configuration method, and all embodiments of the information configuration method are applicable to the network device and can achieve the same or similar beneficial effects.
In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
configuring an access network notification region RNA for a user equipment, the RNA comprising: a cell of a first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs.
When executed by the processor, the program can implement all the implementation manners in the method embodiment applied to the network device side shown in fig. 6, and details are not described here for avoiding repetition.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A method for processing heterogeneous network handover is applied to user equipment, and is characterized by comprising the following steps:
acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiation of a Tracking Area Update (TAU) process, and retains user context information of the UE in the inactive state in the first network, wherein the first cell is a cell in the RNA;
under the condition that the user equipment is in an inactive state and moves from the first network to a third cell of the second network, switching the self state of the user equipment from the inactive state to an idle state; initiating a TAU process, and deleting user context information of the user equipment in an inactive state in the first network, wherein the third cell is a cell other than the RNA.
2. The method according to claim 1, wherein in a case where the ue is in an inactive state and moves from the first network to a first cell of the second network, the ue switches its own state from the inactive state to an idle state, prohibits initiation of a Tracking Area Update (TAU) procedure, and retains user context information when the ue is in an inactive state in the first network, and the method further comprises:
under the condition that the user equipment moves from the second network to a second cell of the first network again, the user equipment restores the self state to the non-activated state and continues to monitor a Radio Access Network (RAN) paging message sent by the first network;
wherein the second cell is a cell within the RNA.
3. The method according to claim 1, wherein in a case where the ue is in an inactive state and moves from the first network to a first cell of the second network, the ue switches its own state from the inactive state to an idle state, prohibits initiation of a Tracking Area Update (TAU) procedure, and retains user context information when the ue is in an inactive state in the first network, and the method further comprises:
and deleting the user context information when the user equipment is in an inactive state in the first network under the condition that the user equipment receives a paging message or actively initiates a connection establishment process with the second network.
4. The method according to claim 1, wherein in a case where the ue is in an inactive state and moves from the first network to a first cell of the second network, the ue switches its own state from the inactive state to an idle state, prohibits initiation of a Tracking Area Update (TAU) procedure, and retains user context information when the ue is in an inactive state in the first network, and the method further comprises:
updating the RNA in the case that the user equipment moves from the second network to a fourth cell of the first network again, wherein the fourth cell is a cell other than the RNA.
5. The method of claim 1, wherein the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
6. The method of claim 1, wherein the cell of the second network comprises: the cells in the area list are tracked.
7. A user equipment, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:
acquiring an access network notification region RNA configured for user equipment by a first network, wherein the RNA comprises: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
when the UE is in an inactive state and moves from the first network to a first cell of the second network, the UE switches its own state from the inactive state to an idle state, prohibits initiation of a Tracking Area Update (TAU) process, and retains user context information of the UE in the inactive state in the first network, wherein the first cell is a cell in the RNA;
under the condition that the user equipment is in an inactive state and moves from the first network to a third cell of the second network, switching the self state of the user equipment from the inactive state to an idle state; initiating a TAU process, and deleting user context information of the user equipment in an inactive state in the first network, wherein the third cell is a cell other than the RNA.
8. The UE of claim 7, wherein the processor, when executing the program, further performs the steps of:
under the condition that the user equipment moves from the second network to a second cell of the first network again, the user equipment restores the self state to the non-activated state and continues to monitor a Radio Access Network (RAN) paging message sent by the first network;
wherein the second cell is a cell within the RNA.
9. The UE of claim 7, wherein the processor, when executing the program, further performs the steps of:
and deleting the user context information when the user equipment is in an inactive state in the first network under the condition that the user equipment receives a paging message or actively initiates a connection establishment process with the second network.
10. The UE of claim 7, wherein the processor, when executing the program, further performs the steps of: updating the RNA in the case that the user equipment moves from the second network to a fourth cell of the first network again, wherein the fourth cell is a cell other than the RNA.
11. The UE of claim 7, wherein the cell of the first network comprises at least one of:
a cell in a cell list;
the access network notifies the cells in the area list;
the cells in the area list are tracked.
12. The UE of claim 7, wherein the cell of the second network comprises: the cells in the area list are tracked.
13. A user device, comprising:
an obtaining module, configured to obtain an access network notification area RNA configured by a first network for a user equipment, where the RNA includes: a cell of the first network and a cell of a second network, the first network and the second network being networks based on different radio access technologies, RATs;
a first processing module, configured to, when the ue is in an inactive state and moves from the first network to a first cell of the second network, switch a state of the ue from the inactive state to an idle state, prohibit initiation of a tracking area update TAU procedure, and keep user context information of the ue when the ue is in the inactive state in the first network, where the first cell is a cell in the RNA;
a fourth processing module, configured to switch a self state of the ue from an inactive state to an idle state when the ue is in the inactive state and moves from the first network to a third cell of the second network; initiating a TAU process, and deleting user context information of the user equipment in an inactive state in the first network, wherein the third cell is a cell other than the RNA.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for handling a handover between different networks according to any one of claims 1 to 6.
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