CN107801219A - Control method, processing method and processing device are initiated in switching - Google Patents

Abstract

The present invention provides one kind and has changed control method and device and switching handling method and device, in user terminal by the handoff procedure of the lateral Target cell side in cell-of-origin, cell-of-origin side obtains access parameter during user terminal access cell-of-origin, and determine user terminal for after resource priority type user terminal according to access parameter, the type identification parameter for characterizing the type of user terminal is issued into Target cell side, Target cell lateral root controls the user terminal to complete switching according to resource priority distribution control strategy corresponding to the type identification parameter use received, and it can make to be continuously obtained preferential resource allocation and service guarantee in the cell of the user terminal after handover.Pass through said process, resource priority type user terminal can preferentially complete switching and can be in its corresponding service that the whole process of access network obtains, also the distribution of lasting prioritized resources and service guarantee corresponding to can obtaining, so as to improve the satisfaction of Consumer's Experience.

Description

Handover initiation control method, processing method and device

technical field

The present invention relates to the field of wireless communication, in particular to a handover initiation control method, processing method and device.

Background technique

In the current mobile communication system such as LET (Long Term Evolution, long-term evolution), when UE (User Equipment, user terminal) accesses the network through RRC (Radio Resource Control, radio resource control) communication connection, it will carry in the connection request message One establishment reason, when eNB (evolved NodeB, base station) receives a connection request from UE, it will provide differentiated services to the UE according to the establishment reason carried in the connection request, especially in the state of system load congestion, for emergency calls , high-priority access and other establishment reasons, the eNB will prioritize the allocation of its network resources.

However, according to the current technology, emergency calls or high-priority access users can only obtain high-priority resources and service guarantees in the service cell that initially accesses the network. In practice, after users access the network, they often The cell that accesses the network will be changed for various reasons. Once the cell is changed, the new cell cannot recognize that the connected user is a high-priority user or an emergency call user, and thus cannot continue to provide priority services to the user. Resource allocation and service assurance.

Contents of the invention

The main technical problem to be solved by the handover initiation control method and device and the handover processing method and device provided by the embodiments of the present invention is that once the existing cell serving users is changed, the new cell cannot identify the type of user terminal to be accessed, resulting in When the user terminal type is a resource-priority terminal, it cannot obtain the problem of priority resource allocation and service guarantee.

In order to solve the above technical problems, an embodiment of the present invention provides a handover initiation control method, including:

During the handover process of the user terminal from the source cell side to the target cell side,

Acquire access parameters when the user terminal accesses the source cell;

When determining that the user terminal is a resource priority terminal according to the acquired access parameters, sending a type identification parameter representing the type of the user terminal to the target cell side.

The embodiment of the present invention also provides a handover processing method, including:

receiving the type identification parameter sent by the source cell side to indicate that the user terminal to be handed over is a resource priority terminal;

Controlling the user terminal to complete handover by adopting a resource priority allocation control strategy according to the type identification parameter.

The embodiment of the present invention also provides a handover initiation control device, including:

An access parameter acquisition module, configured to acquire access parameters when the user terminal accesses the source cell during the handover process of the user terminal from the source cell side to the target cell side;

A handover initiating module, configured to send a type identification parameter representing the type of the terminal to the target cell side when determining that the user terminal is a resource priority terminal according to the obtained access parameters.

An embodiment of the present invention also provides a switching processing device, including:

The receiving module is configured to receive a type identification parameter sent from the source cell side to indicate that the user terminal to be handed over is a resource priority terminal;

A handover processing module, configured to control the user terminal to complete handover by adopting a resource priority allocation control strategy according to the type identification parameter.

An embodiment of the present invention also provides a computer storage medium, where computer executable instructions are stored in the computer storage medium, and the computer executable instructions are used to execute the aforementioned handover initiation control method or handover processing method.

The beneficial effects of the present invention are:

According to the handover initiation control and handover processing method, the handover initiation control device, the handover processing device, and the storage medium provided by the embodiments of the present invention, during the cell handover process, the user terminal type obtained from the source cell side is a resource priority terminal The type identification parameter of the user terminal type is sent to the target cell side, and the target cell side uses the corresponding resource priority allocation control strategy to control the user terminal to complete the handover according to the received type identification parameter, so that the target cell side can also identify the type of the user terminal, thereby The resource-priority user terminal can be preferentially allocated to the network resources of the target cell and complete the handover.

Further, after the resource-priority user terminal in the embodiment of the present invention completes the handover, when initiating a new resource application request, the base station where the new cell is located will use the resource-priority invocation strategy corresponding to the resource-priority user terminal to preferentially allocate corresponding resources to the user. Therefore, during the whole process of user terminal access, resource-prioritized user terminals can obtain continuous priority resource allocation and service guarantee, so that the experience satisfaction of resource-priority terminal users can be higher.

Description of drawings

FIG. 1 is a schematic flowchart of a handover initiation control method in Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a handover processing method in Embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of a handover initiation control device in Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a switching processing device in Embodiment 4 of the present invention;

FIG. 5 is a schematic diagram of using RRC to access a network in Embodiment 5 of the present invention;

FIG. 6 is a schematic flow diagram of a high-priority access inter-terminal connecting to a network through RRC and performing handover in Embodiment 5 of the present invention;

7 is a schematic diagram of a high-priority access user switching between different base stations based on the X2 interface in Embodiment 5 of the present invention;

FIG. 8 is a schematic diagram of a source-side base station receiving a high-priority access user terminal measurement report message in Embodiment 5 of the present invention;

FIG. 9 is a schematic diagram of RRC cross-cell re-establishment in Embodiment 5 of the present invention;

10 is a schematic diagram of sending a radio link failure indication from the base station located on the target cell side to the base station located on the source cell side after RRC cross-cell re-establishment in Embodiment 5 of the present invention;

FIG. 11 is a schematic diagram of the process on the source cell side when switching based on the S1 port in Embodiment 5 of the present invention;

FIG. 12 is a schematic diagram of the process at the target cell side during handover based on the S1 port in Embodiment 5 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one:

Please refer to FIG. 1. In this embodiment, on the source cell side of the cell handover, the handover initiation control method includes:

During the handover process of the user terminal from the source cell side to the target cell side:

S101: Obtain access parameters when the user terminal accesses the source cell;

S102: When determining that the user terminal is a resource priority terminal according to the obtained access parameters, transfer a type identification parameter representing the type of the user terminal to the target cell side.

In this embodiment, the method for the user terminal to access the source cell side may be through an RRC communication connection, that is, the user terminal accesses the base station where the source cell is located through the RRC communication connection; and the access parameters in this embodiment Include a build reason parameter. For example, when the user terminal accesses the network through the RRC communication connection, the establishment cause parameter may be the cause parameter of the RRC communication connection establishment process. For example, if the user terminal is a high-priority access user terminal at this time, the establishment reason parameter indicates that the reason for the user terminal to access the network is high-priority access, and the user terminal accesses the source cell through an RRC communication connection, and the source The base station where the cell is located finds that the reason for the user terminal's access is "highPriorityAccess" (high priority access). For another example, if the user terminal accesses the user terminal for an emergency call at this time, the establishment reason parameter indicates that the reason for the user terminal to access the network is an emergency call, and the user terminal accesses the source cell through the RRC communication connection, and the source cell The base station where it is located finds that the reason for the access of the user terminal is "emergency" (emergency call).

In S102 of this embodiment, determining whether the user terminal is a resource priority terminal according to the obtained access parameters includes:

Judging whether the establishment reason parameter is a high-priority access, if so, judging that the user terminal is a resource-priority terminal;

Or determine whether the establishment cause parameter is an emergency call access, and if so, determine that the user terminal is a resource priority terminal.

In this embodiment, the type identification parameter may be any parameter that can uniquely characterize the type of the user terminal, for example, it may be the parameter of the establishment reason obtained directly when the user terminal accesses the source cell side through the RRC communication connection, or it may be set arbitrarily New parameter, for example "High Priority Indicator". When the type identification parameter representing the user terminal type is sent to the target cell side, the type identification parameter can be added to the handover request sent from the source cell side to the target cell side, and the type identification parameter and the handover request are sent to the target cell side at the same time . It is also possible to separate the type identification parameter from the handover request and send it to the target cell separately.

It should be understood that, in different application scenarios, the source cell side and the target cell side in this embodiment may belong to the same base station, or may belong to different base stations.

When the source cell side and the target cell side belong to the same base station, the handover of the user terminal from the source cell side to the target cell side belongs to the communication process between processes in the base station. When it is identified that the access user is a resource priority user terminal, the The type identification parameter is added to the handover request and sent to the target cell side, or the target cell is directly notified to query the above parameters of the source cell. Because the source cell and the target cell are on the same hardware board at this time, the target cell can directly query all parameters of the source cell. Therefore, the transfer of the type identification parameter representing the type of the user terminal to the target cell side in this embodiment is not limited to the source cell directly sending the type identification parameter to the target cell during the handover process.

When the source cell side and the target cell side belong to different base stations, there may or may not be an X2 port between the two base stations. Therefore, the network accessed by the user terminal can be switched through the X2 port when switching between different base stations. It can also be switched through the S1 port.

When there is an X2 port connection between the base station on the source cell side and the base station on the target cell side, you can switch over through the X2 port first, or randomly through any interface of the X2 port or the S1 port;

When there is no X2 interface connection between the base station where the source cell side is located and the base station where the target cell side is located, the user terminal is switched through the S1 interface.

It should be understood that when the handover process of the user terminal from the source cell side to the target cell side is based on the X2 interface handover, the type identification parameter can be added to the handover request and sent to the target cell side through the X2 interface, or the type identification parameter can be sent to the target cell side through the X2 interface. Parameters and handover requests are sent to the target cell side through the X2 port; when the handover process of the user terminal from the source cell side to the target cell side is based on the S1 port handover, the type identification parameter can be added to the handover request and sent to the target cell side through the S1 port MME (Mobile Management Entity, mobile management entity), and then the MME forwards it to the target cell side, or sends the type identification parameter and the handover request to the MME through the S1 interface, and then the MME forwards it to the target cell side.

In this embodiment, the reasons for triggering the handover of the user terminal from the source cell side to the target cell side include but not limited to: handover triggered by cell coverage and terminal mobility, handover triggered by cross-cell RRC re-establishment process, service bearer Type, switch triggered by load balancing.

When the source cell side and the target cell side belong to different base stations, and the handover of the resource priority terminal from the source cell side to the target cell side is initiated based on the X2 interface, including:

If the handover is triggered due to cell coverage and terminal movement, after the base station on the source cell side receives the measurement report message from the UE, it will send a type identification parameter representing the type of the user terminal to the base station on the target cell side;

If the handover is triggered due to cross-cell RRC re-establishment, after receiving the radio link failure indication message sent by the base station on the target cell side, the base station on the source cell side will send a message representing the user terminal type to the base station on the target cell side. It should be understood that the radio link failure indication message sent by the base station of the target cell side received by the base station of the source cell side is the RRC re-establishment request message of the UE received by the base station of the target cell side and completed Sent after RRC re-establishment;

If the handover is triggered by some functional reasons, for example, it is triggered by the type of service bearer or load balancing, etc., the base station at the source cell side can directly add the type identification parameter representing the type of user terminal to the handover request and send it to the host cell at the target cell side. base station.

When the source cell side and the target cell side belong to different base stations, and the handover of the resource priority terminal from the source cell side to the target cell side is initiated based on the S1 interface, including:

If the handover is triggered by cell coverage and terminal mobility or other functional reasons, such as service bearer type or load balancing, the base station on the source cell side will directly represent the user terminal type through the MME The identification parameter is added to the base station where the handover request is sent to the target cell side.

Embodiment two:

Referring to FIG. 2, in this embodiment, on the target cell side of the cell handover, the handover processing method provided includes:

S201: Receive the type identification parameter sent by the source cell side and used to indicate that the user terminal to be handed over is a resource priority terminal;

S202: Control the user terminal to complete the handover by using a resource priority allocation control policy according to the type identification parameter.

The resource-priority terminals in this embodiment include but are not limited to high-priority access user terminals and emergency call access user terminals. When the user terminal accesses the network through an RRC communication connection, the type identification parameter of the resource-priority terminal can be an establishment reason parameter, or a new parameter set arbitrarily, as long as it can represent the terminal as a resource-priority terminal. For example, if the user terminal is a high-priority access user terminal at this time, the establishment reason parameter indicates that the reason for the user terminal to access the network is high-priority access, and the user terminal accesses the source cell through an RRC communication connection, and the source The base station where the cell is located finds that the reason for user terminal access is "highPriorityAccess", then the type identification parameter at this time can be "highPriorityAccess"; if the user terminal is an emergency call access user terminal at this time, the establishment reason parameter represents the user The reason why the terminal accesses the network is an emergency call. The user terminal connects to the source cell through RRC communication. Can be "emergency".

In this embodiment, the type identification parameters that characterize the user terminal type all have a corresponding resource priority allocation control strategy, including: different type identification parameters correspond to different resource priority allocation control strategies, or different type identification parameters correspond to resource priority The distribution control strategies are at least partially the same.

It should be understood that in this embodiment, when the resource priority allocation control strategy is used to complete the handover process of the user terminal, when the resource priority terminal is ready to switch to the target cell side, the target cell side will receive the type identification parameter of the resource priority terminal , because the current target cell side determines that the current system resources can no longer accommodate this resource-prioritized terminal user according to the calculation, so the target cell side will adopt the control strategy corresponding to the type identification parameter to reject other non-resources currently requesting cut-in on the target cell side Priority users, so as to ensure that resource priority terminals complete this handover.

It should be understood that resource-priority terminal users can be given priority to complete this handover, especially in the state of network load congestion, but not limited to resource reservation or resource preemption, etc., to ensure that the resource-priority terminal users in this embodiment The end user switches successfully.

In order to enable resource-priority terminal users to enjoy their corresponding priority resource allocation and service guarantee during the whole access process, and improve the experience satisfaction of resource-priority terminal users, this embodiment also includes: When a new cell (that is, the target cell) initiates a new resource application request, the new cell will adopt a resource-priority invocation strategy, and preferentially allocate corresponding resources to resource-priority terminals.

The priority resource invocation strategy in this embodiment is also a resource priority allocation control strategy. The resource priority invocation strategy ensures that resource priority terminal users can continue to be preferentially allocated resources and guaranteed services in the new cell after the handover is completed.

In this embodiment, in S201, receiving the type identification parameter sent by the source cell side to indicate that the user terminal to be switched is a resource priority terminal includes directly receiving the type identification parameter sent by the source cell side to indicate that the user terminal to be switched is a resource priority terminal The type identification parameter also includes receiving the type identification parameter sent by the source cell side and forwarded by the MME to indicate that the user terminal to be handed over is a resource priority terminal.

In this embodiment, the type identification parameter used to indicate that the user terminal to be handed over is a resource priority terminal sent by the source cell side is directly received, including: the target cell side and the source cell side belong to the same base station, or the target cell side and the source cell side They belong to different base stations and are sent through the X2 port.

In this embodiment, receiving the type identification parameter sent by the source cell side and forwarded by the MME to indicate that the user terminal to be handed over is a resource priority terminal includes: the target cell side and the source cell side belong to different base stations and are sent through the S1 interface .

It should be understood that when the source cell side and the target cell side belong to different base stations, including:

When there is an X2 port connection between the base station on the source cell side and the base station on the target cell side, it can be switched through the X2 port preferentially, or can be switched randomly through any interface of the X2 port or the S1 port;

When there is no X2 interface connection between the base station on the source cell side and the base station on the target cell side, the user terminal is handed over through the S1 interface.

Embodiment three:

Referring to FIG. 3, the switching initiation control device provided in this embodiment includes:

The access parameter obtaining module 31 is used for obtaining the access parameters when the user terminal accesses the source cell during the handover process of the user terminal from the source cell side to the target cell side;

The handover initiating module 32 is configured to transmit the type identification parameter representing the type of the terminal to the target cell side when it is determined that the user terminal is a resource priority terminal according to the obtained access parameters.

In this embodiment, the method for the user terminal to access the source cell side includes accessing through an RRC communication connection, that is, the user terminal accesses the base station where the source cell side is located through the RRC communication connection establishment process. At this time, the type identification parameter can be Establish the reason parameter.

It should be understood that the handover initiating module 32 can also be used to determine whether the establishment cause parameter is high-priority access, and if so, determine that the user terminal is a resource-priority terminal;

Or it is used to determine whether the establishment cause parameter is an emergency call access, and if so, determine that the user terminal is a resource priority terminal.

In this embodiment, the source cell side sends the type identification parameter representing the user terminal type to the target cell side through the handover initiation module 32, including sending the type identification parameter and the handover request to the target cell side at the same time, that is, adding the type identification parameter to the source cell side. In the handover request sent from the cell side to the target side, or the type identification parameter and the handover request are respectively sent to the target cell side.

In this embodiment, during the handover process of the user terminal from the source cell side to the target cell side, the source cell side and the target cell side may belong to the same base station or may belong to different base stations.

When the source cell side and the target cell side belong to the same base station, the source cell side sends the type identification parameter representing the terminal type to the target cell side through the handover initiation module 32. This process belongs to the communication process between processes in the base station. When the access parameter obtained by the input parameter acquisition module 31 is determined by the handover initiation module 32 to be a resource priority user terminal, the handover initiation module 32 may add the type identification parameter to the handover request and send it to the target cell side, or The type identification parameter and the handover request may be sent to the target cell side respectively. Or the handover initiating module 32 directly notifies the target cell side to query the above parameters of the source cell.

When the source cell side and the target cell side belong to different base stations, including:

When there is an X2 port connection between the base station on the source cell side and the base station on the target cell side, the handover initiation module 32 can initiate handover via the X2 port preferentially, or randomly initiate a handover via any interface of the X2 port or the S1 port ;

When there is no X2 interface connection between the base station where the source cell side is located and the base station where the target cell side is located, the handover initiated by the handover initiation module 32 is performed through the S1 interface.

When the handover initiating module 32 initiates handover based on the X2 interface, the handover initiating module 32 can add the type identification parameter to the handover request and send it to the base station where the target cell side is located through the X2 interface, or the type identification parameter and the handover request through the X2 port to the base station where the target cell side is located; when the handover initiating module 32 initiates handover based on the S1 port, the type identification parameter can be added to the handover request and sent to the MME through the S1 port, and then forwarded to the target cell side through the MME The base station where it is located may also send the type identification parameter and the handover request to the MME through the S1 interface, and then forward them to the base station where the target cell side is located through the MME.

The reasons for the handover initiated by the handover initiation module 32 in this embodiment include but are not limited to: triggered by cell coverage and terminal mobility, triggered by cross-cell RRC re-establishment process, triggered by service bearer type or load balancing.

When the source cell side and the target cell side belong to different base stations respectively, the handover initiated by the base station where the source cell side is located through the handover initiation module 32 is initiated based on the X2 interface, including:

If the above-mentioned handover is triggered by cell coverage and terminal mobility, after the base station on the source cell side receives the measurement report message of the UE, the handover initiation module 32 will send a signal representing the user terminal to the base station on the target cell side through the X2 port. the type identification parameter of the type;

If the cross-cell RRC re-establishment process triggers the above handover, after the base station at the source cell side receives the wireless link failure indication message sent by the base station at the target cell side, it will pass the handover initiation module 32 to the target cell side through the X2 port. The base station where the base station is located sends the type identification parameter representing the type of the user terminal. It should be understood that the radio link failure indication message received by the base station where the source cell side is located and sent by the base station where the target cell side is located is received by the base station where the target cell side is located. RRC re-establishment request message, and sent after RRC re-establishment is completed.

If some functional reasons, such as service bearer type or load balancing, etc. trigger the above handover, the base station at the source cell side can directly add the type identification parameter representing the user terminal type to the handover request through the handover initiation module 32 and send it to the target through the X2 port The base station where the cell side is located.

When the source cell side and the target cell side belong to different base stations respectively, the handover initiated by the base station where the source cell side is located through the handover initiation module 32 is initiated based on the S1 interface, including:

If the above-mentioned handover is triggered by cell coverage and terminal mobility or some other functional reasons, for example, it is triggered by the type of service bearer or load balancing, then the base station where the source cell is located will represent the user terminal through the handover initiation module 32 through the S1 port The type identification parameter of the type is added to the handover request and sent to the MME, and then the MME sends the received type identification parameter to the base station where the target cell side is located.

Embodiment four:

Referring to FIG. 4, the switching processing device provided in this embodiment includes:

The receiving module 41 is configured to receive a type identification parameter sent from the source cell side to indicate that the user terminal to be handed over is a resource priority terminal;

The handover processing module 42 is configured to control the user terminal to complete the handover by adopting a resource priority allocation control strategy according to the type identification parameter.

In this embodiment, the target cell side receives the type identification parameter sent from the source cell side through the receiving module 42, which is used to indicate that the user terminal to be handed over is a resource-priority terminal. The resource-priority terminal includes but is not limited to high-priority access users The terminal and the emergency call access the user terminal, and the acquired type identification parameter of the resource-priority terminal can be an establishment reason parameter, or a new parameter set arbitrarily, as long as it can represent the terminal as a resource-priority terminal. For example, when the user terminal accesses the network through an RRC communication connection, the establishment cause parameter may be the cause parameter of the RRC communication connection establishment process. If the user terminal accesses the user terminal for an emergency call at this time, the establishment cause parameter represents the The reason for the terminal to access the network is an emergency call.

In this embodiment, the type identification parameters received by the receiving module 41 to indicate that the user terminal to be switched is a resource priority terminal all correspond to a resource priority allocation control strategy, including: different type identification parameters correspond to different resource priority allocation The control strategies, or the resource priority allocation control strategies corresponding to different type identification parameters are at least partially the same.

It should be understood that when the handover processing module 42 controls the user terminal to complete the handover by adopting the resource priority allocation control strategy according to the type identification parameter, it may ensure that the resource priority terminal user in this embodiment The switch was successful.

In order to enable resource-priority terminal users to enjoy their corresponding priority resource allocation and service guarantee during the whole access process, and improve the experience satisfaction of resource-priority terminal users, this embodiment also includes that the base station where the new cell is located, that is, After the base station where the target cell side is located before the handover completes the handover through the handover processing module 42, when the user terminal connected to the new cell initiates a new resource application request, the base station where the new cell is located will adopt a resource priority invocation strategy, and the priority is resource priority Type terminal allocates corresponding resources.

The resource priority invocation strategy in this embodiment is also a resource priority allocation control strategy. The resource priority invocation strategy ensures that after the base station where the target cell is located completes the handover through the handover processing module 42, the user terminal can continue to be preferentially allocated resources in the new cell and security services.

In this embodiment, the receiving module 41 receives the type identification parameter sent by the source cell side to indicate that the user terminal to be switched is a resource priority terminal, including directly receiving the type identification parameter sent by the source cell side to indicate that the user terminal to be switched is a resource priority terminal The type identification parameter of the terminal also includes receiving the type identification parameter sent by the source cell side and forwarded by the MME to indicate that the user terminal to be handed over is a resource priority terminal.

In this embodiment, the receiving module 41 directly receives the type identification parameter sent by the source cell side to indicate that the user terminal to be handed over is a resource priority terminal, including: the target cell side and the source cell side belong to the same base station, or the target cell side and the source cell side The source cells belong to different base stations and are sent through the X2 port;

In this embodiment, the receiving module 41 receives the type identification parameter sent by the source cell side and forwarded by the MME to indicate that the user terminal to be handed over is a resource priority terminal, including: the target cell side and the source cell side belong to different base stations and pass S1 port sends.

It should be understood that when the source cell side and the target cell side belong to different base stations, including:

When there is an X2 port connection between the base station on the source cell side and the base station on the target cell side, it can be switched through the X2 port preferentially, or can be switched randomly through any interface of the X2 port or the S1 port;

When there is no X2 interface connection between the base station on the source cell side and the base station on the target cell side, the user terminal is handed over through the S1 interface.

Embodiment five:

In order to better understand the present invention, the cell handover of resource-priority terminal users will be further described below in conjunction with a specific handover control system. In this embodiment, the user terminal is a high-priority access user terminal. The high-priority access users include but are not limited to network administrators, public utilities, and security department applications. High-priority access users access the network through the RRC communication connection establishment process, as shown in FIG. 5 . In this embodiment, the source cell side sends the type identification parameter indicating that the user terminal type is a high-priority access user terminal to the target cell side. The type identification parameter may be an establishment reason parameter, for example, the establishment reason parameter is "highPriorityAccess" , may also be a newly set parameter. In this embodiment, the type identification parameter representing the high-priority access user terminal is "High PriorityIndicator".

In this embodiment, the type identification parameter "High Priority Indicator" indicating that the user terminal type is a high priority access user terminal is sent to the target cell side, including: adding "High Priority Indicator" (high priority indication) to the target cell side In the handover request sent from the source cell side to the target cell side, the "High Priority Indicator" and the handover request are sent to the target cell side at the same time, or the "High Priority Indicator" and the handover request are sent to the target cell side separately.

In this embodiment, the type identification parameter is added to the handover request for the source cell side, and then sent to the target cell side at the same time as the handover request, and the target cell side obtains the "High Priority Indicator" type identification parameter, and uses the corresponding The resource priority allocation control strategy controls high-priority access user terminals to complete the handover, as shown in Figure 6 for details, including:

S601: The high-priority access user terminal accesses the source cell side through the RRC communication connection, and carries the RRC establishment reason parameter "highPriorityAccess" in the "RRC Connection Request" (radio resource control communication connection connection request) message sent through RRC

S602: The base station where the source cell is located obtains the access parameters sent by the high-priority access user terminal through the RRC communication connection;

S603: The base station at the source cell side determines that the access user terminal is a high-priority access user terminal according to the obtained access parameters, and sends a handover request to the target cell when the handover trigger condition is met, and a high priority is added to the handover request. The type identification parameter "High Priority Indicator" of the priority access user terminal;

S604: The target cell side receives the handover request message sent by the source cell side, and obtains that the type identification parameter of the high priority access user terminal is "High Priority Indicator";

S605: The target cell side controls the high-priority access user terminal to complete the handover by using a corresponding resource priority allocation control policy according to the received type identification parameter "High Priority Indicator".

In S601 of this embodiment, the high-priority access user terminal sends a radio resource control communication connection request message carrying "highPriorityAccess" to the source cell side through the RRC communication connection, and the ASN1 (Abstract Syntax Notation) of the radio resource control communication connection request message One, abstract syntax token) structure can be as follows:

In S601 of this embodiment, after the source cell side finds that the RRC establishment reason is "highPriorityAccess", before the handover, the admission control of the radio resource management of the base station where the source cell side is located can access the user terminal with high priority Prioritize the allocation of resources, especially in the state of network load congestion, the source cell side can also try to ensure that the RRC communication connection of the high-priority access user is successfully established through resource reservation or resource preemption. It should be understood that the base station where the source cell side is located can record the reason for establishing the RRC communication connection of the high-priority access user terminal, and then if it is necessary to switch the cell accessed by the high-priority access user terminal The type identification parameter characterizing the type of the user terminal is obtained directly.

In this embodiment, if the source cell side and the target cell side belong to the same base station, then this handover belongs to the communication process between processes in the base station. For the high-priority access user terminal in this embodiment, in the handover request of the target source side Add the type identification parameter "High Priority Indicator", and the target source side receives the handover request carrying "High Priority Indicator", and then controls the high priority user terminal according to the resource priority allocation control policy corresponding to the type identification parameter "High Priority Indicator" to complete this switching times.

In this embodiment, the source cell side and the target cell side may belong to different base stations, for example, the source cell side belongs to eNB1, and the target cell side belongs to eNB2.

If the handover is initiated based on the X2 interface, as shown in Figure 7, eNB1 will add "High Priority Indicator" to the HANDOVER REQUEST (handover request) message, and then send it to eNB2 through the X2 interface, eNB2's radio resource management acceptance Control the priority allocation of resources for the handover of the high-priority access user terminal, especially in the state of network load congestion, eNB2 guarantees the success of the handover of the high-priority access user terminal by means of resource reservation or resource preemption;

Table I

The handover based on the X2 interface initiated by eNB1 can be triggered by various reasons, such as

This handover is triggered by cell coverage and terminal mobility, then when eNB1 receives the measurement report of the high-priority access user terminal, as shown in Figure 8, it will add the "High Priority Indicator" HANDOVER REQUEST through the X2 interface The message is sent to eNB2;

The cross-cell RRC re-establishment process, as shown in Figure 9, triggers this handover, then when eNB2 receives the RRC re-establishment request message from the high-priority access user terminal and completes RRC re-establishment, it sends RLF INDICATION to eNB1 (Radio Link Failure Indication) message, as shown in Figure 10, and then eNB1 sends a HANDOVER REQUEST message added with "High PriorityIndicator" to eNB2;

If this handover is triggered by some other functional reasons, such as service bearer type or load balancing, eNB1 can directly send a HANDOVER REQUEST message with "High Priority Indicator" added to eNB2.

If the handover is initiated based on the S1 interface, eNB1 will add "High Priority Indicator" to the HANDOVER REQUEST message sent to the MME, as shown in Table 2 below:

Table II

The MME also adds the type identification parameter "High Priority Indicator" to the HANDOVER REQUEST message forwarded to eNB2 according to the received HANDOVER REQUEST message, as shown in Table 3 below:

Table three

The radio resource management and admission control of eNB2 gives priority to resource allocation for the handover of the high-priority access user terminal, especially in the state of network load congestion, eNB2 guarantees this high-priority access through resource reservation or resource preemption. The handover of the user terminal is successful;

The handover based on the S1 interface initiated by eNB1 can also be triggered by various reasons, such as: cell coverage and terminal mobility reasons or some other functional reasons, such as service bearer type or load balancing, which trigger this handover. The base station eNB1 where the source cell is located sends the HANDOVER REQUEST message with the "High Priority Indicator" added to the MME through the S1 port, as shown in Figure 11, and then the MME forwards the HANDOVER REQUEST message with the "High Priority Indicator" to the MME through the S1 port Refer to FIG. 12 for the base station where the target cell side is located.

It should be understood that the base station eNB2 where the target cell is located can record the "High Priority Indicator" in the HANDOVER REQUEST message, so that the eNB2 can later identify the high priority access user terminal.

In this embodiment, when the source cell side and the target cell side belong to different base stations, including:

When there is an X2 interface connection between the base station eNB1 on the source cell side and the base station eNB2 on the target cell side, switching can be performed preferentially through the X2 interface, or can be switched randomly through any interface of the X2 interface or the S1 interface;

When there is no X2 interface connection between the base station eNB1 on the source cell side and the base station eNB2 on the target cell side, the user terminal is handed over through the S1 interface.

It should be understood in this embodiment that, during the establishment and modification process of E-RAB (Evolved Radio Access Bearer, evolved radio access bearer) on the source cell side or the target cell side, the base station where the source cell side or the target cell side is located It can assign resources to identifiable high-priority access user terminals through its own corresponding RRM (Radio Resource Management) admission control, especially in the state of network load congestion, through resource reservation or resource preemption. , trying to ensure that the E-RAB of the RRC high-priority access user terminal is successfully established and modified.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned embodiments of the present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed across multiple computing devices. On the network, optionally, they can be implemented with executable program codes of computing devices, thus, they can be stored in computer storage media (ROM/RAM, magnetic disk, optical disk) to be executed by computing devices, and in some In some cases, the steps shown or described can be performed in a different order than here, or they can be fabricated into individual integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. . Therefore, the present invention is not limited to any specific combination of hardware and software.

The above content is a further detailed description of the embodiments of the present invention in conjunction with specific implementation modes, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (10)

1. A handover initiation control method, comprising: During the handover process of the user terminal from the source cell side to the target cell side: Acquire access parameters when the user terminal accesses the source cell; When it is determined that the user terminal is a resource priority terminal according to the obtained access parameters, the type identification parameter representing the type of the user terminal is transmitted to the target cell side. 2. The handover initiation control method according to claim 1, wherein the access parameters include: establishment cause parameters when the user terminal accesses the source cell side through a radio resource control communication connection. 3. The handover initiation control method according to claim 2, wherein determining whether the user terminal is a resource priority terminal according to the obtained access parameters comprises: Judging whether the establishment cause parameter is high-priority access, if so, judging that the user terminal is a resource-priority terminal; Or it is judged whether the establishment cause parameter is an emergency call access, and if so, it is judged that the user terminal is a resource priority terminal. 4. The handover initiation control method according to any one of claims 1-3, characterized in that, transferring the type identification parameter characterizing the type of the user terminal to the target cell side comprises: adding the type identification parameter to into the handover request sent from the source cell side to the target cell side. 5. The handover initiation control method according to claim 4, wherein the source cell side and the target cell side belong to different base stations, comprising: When there is an X2 interface connection between the base station on the source cell side and the base station on the target cell side, sending the handover request to the target cell side through the X2 interface; When there is no X2 interface connection between the base station on the source cell side and the base station on the target cell side, send the handover request to the mobility management entity through the S1 interface, and forward it to the target through the mobility management entity Residential side. 6. A handover processing method, comprising: receiving the type identification parameter sent by the source cell side to indicate that the user terminal to be handed over is a resource priority terminal; Controlling the user terminal to complete handover by adopting a resource priority allocation control policy according to the type identification parameter. 7. The handover processing method according to claim 6, wherein after the user terminal completes the handover, when the user terminal initiates a new resource application request, the resource priority invocation strategy is used to preferentially allocate resources to the user terminal. corresponding resources. 8. A handover initiation control device, comprising: An access parameter acquisition module, configured to acquire access parameters when the user terminal accesses the source cell during the handover process of the user terminal from the source cell side to the target cell side; A handover initiating module, configured to transmit a type identification parameter representing the type of the terminal to the target cell side when determining that the user terminal is a resource priority terminal according to the acquired access parameters. 9. The device for controlling handover initiation according to claim 8, wherein the access parameters include: an establishment cause parameter when the user terminal accesses the source cell through a radio resource control communication connection; The handover initiating module is used to determine whether the establishment cause parameter is high-priority access, and if so, determine that the user terminal is a resource-priority terminal; Or it is used to determine whether the establishment cause parameter is emergency call access, and if so, determine that the user terminal is a resource priority terminal. 10. A switching processing device, comprising: The receiving module is configured to receive a type identification parameter sent from the source cell side to indicate that the user terminal to be handed over is a resource priority terminal; A handover processing module, configured to control the user terminal to complete handover by adopting a resource priority allocation control strategy according to the type identification parameter.