WO2014190464A1 - 一种用户设备切换的方法及相关设备 - Google Patents

一种用户设备切换的方法及相关设备 Download PDF

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Publication number
WO2014190464A1
WO2014190464A1 PCT/CN2013/076246 CN2013076246W WO2014190464A1 WO 2014190464 A1 WO2014190464 A1 WO 2014190464A1 CN 2013076246 W CN2013076246 W CN 2013076246W WO 2014190464 A1 WO2014190464 A1 WO 2014190464A1
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WIPO (PCT)
Prior art keywords
control node
wireless network
network control
target wireless
target
Prior art date
Application number
PCT/CN2013/076246
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English (en)
French (fr)
Inventor
支玉亮
陈燕燕
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380000634.0A priority Critical patent/CN104429119A/zh
Priority to PCT/CN2013/076246 priority patent/WO2014190464A1/zh
Publication of WO2014190464A1 publication Critical patent/WO2014190464A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0079Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0215Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices

Definitions

  • the present invention relates to the field of user equipment communication, and in particular, to a method for user equipment handover and related equipment. Background technique
  • Machine Type Communications (MTC) business between Machine and Machine (M2M) is developing rapidly.
  • MTC services include smart meter reading, intelligent transportation, and intelligent medical treatment.
  • MTC services are realized through traditional sensor networks, the sensor network can be combined with the mobile communication network because the amount of communication information that the sensor network can carry and the communication network that can be built are very limited.
  • the information exchange between the MTC devices is added to the mobile communication network to implement the MTC service, which becomes an inevitable trend of the implementation of the MTC service.
  • Mobile communication network realizes both MTC business and ordinary people (Human To
  • the user equipment (UE) of the access network has the MTC service of the MTC service and the non-MTC device of the H2H service.
  • RRC Radio Resource Control
  • the wireless network control node when the UE initiates the service, the wireless network control node may implement preferential access to the non-network when the wireless network control node is in the network congestion according to the RRC setup request message sent by the UE. MTC device.
  • the UE after accessing the network, the UE often needs to be handed over by the source radio network control node to another different target radio network control node due to the location change of the UE, insufficient resources of the source radio network control node, and the like. And because when the handover is performed, the communication mechanism between the device such as the radio network control node and the UE is different from that when the UE initiates the service.
  • the target radio network control node cannot refuse the handover of the MTC device when the network is congested, thereby causing the non-MTC device.
  • the resources of the target radio network control node cannot be preferentially obtained, resulting in a time delay in the transmission of data of the H2H service.
  • the technical problem to be solved by the embodiments of the present invention is to provide a method for user equipment handover and related equipment, so as to solve the problem in the prior art that the target wireless network control node cannot implement the switch of rejecting the MTC device when the network is congested.
  • the MTC device cannot preferentially acquire the resources of the target radio network control node, and the resulting data of the H2H service has a time delay in transmission.
  • an embodiment of the present invention provides a method for user equipment handover, where the method includes: In a first aspect, an embodiment of the present invention provides a method for user equipment handover, where the user equipment is used to The network control node switches to the target wireless network control node, and the method includes: the source network device querying the service type information of the user equipment;
  • the target wireless network control node determines, by the source network device, the service type information indicating the MTC service to the target network device, when the service type information indicates the machine type communication MTC service, so that the target wireless network control node receives the Determining whether the target wireless network control node is in network congestion when the service type information is delayed, and rejecting the user equipment to switch to the target wireless network if the target wireless network control node is in network congestion Control node.
  • the source network device is a source core network server where the source wireless network control node is located, and the service type information is the delayable access information
  • the target network device is the target wireless network control node
  • the source network device querying the service type information of the user equipment the method includes: the source core network server querying device attribute information of the user equipment, and the device is in the device The attribute information indicates the delayable access information of the user equipment when the MTC service is generated.
  • the source network device is a source core network server where the source wireless network node is located, and the service type information is device attribute information of the user equipment,
  • the target network device controls the target core network where the target wireless network control node is located
  • the delayable access information is information generated by the target core network server according to the device attribute information and sent to the target wireless network control node.
  • the source network device is the source wireless network control node
  • the service type information is deferred access information
  • the target network device is the target wireless device.
  • Network control node is the source wireless network control node
  • the delayable access information is loaded in the relocation requirement message and controlled by the source wireless network Sending the node to the source core network server, and the delayable access information is loaded in the relocation request message sent by the source core network server to the target wireless network control node, where the source The core network server is a core network server where the source wireless network control node is located.
  • the delayable access information is loaded in the relocation request message by the source core network server And being sent to the target wireless network control node by the target core network server, where the target core network server is a core network server where the target wireless network control node is located.
  • the delayable access information is loaded in the enhanced relocation request message by the source wireless
  • the network control node sends to the target wireless network control node.
  • the delayable access information is encapsulated in the source wireless network control node Sent to the transparent container of the target wireless network control node.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target radio network control node is The current cell load level is lower than the load threshold indicating that the target radio network control node is not in network congestion.
  • the embodiment of the present invention further provides another method for user equipment handover, which is used to switch a user equipment from a source radio network control node to a target radio network control node, where the method includes: Determining, by the source wireless network control node, a handover instruction message, switching the radio resource control connection to the target radio network control node;
  • the user equipment queries the delayable access information when the RRC connection is completed, and sends the delayable access information to the target wireless network control when the delayable access information is queried a node, so that when the target wireless network control node receives the delayable access information of the user equipment, determining whether the target wireless network control node is in network congestion, if the target wireless network control node is in network congestion Sending a connection release message to the user equipment;
  • the user equipment releases a radio resource control connection with the target radio network control node according to the connection release message.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target radio network control node is The current cell load level is lower than the load threshold indicating that the target radio network control node is not in network congestion.
  • the delayable access information is loaded by the user equipment to the target wireless network control node in a handover complete message.
  • the embodiment of the present invention further provides a user equipment switching method, configured to switch a user equipment from a source wireless network control node to a target wireless network control node, where the method includes: the target wireless network control The node receives the deferrable access information obtained based on the service type information of the user equipment; the service type information is queried by the source network device and sent to the target network device when determining that the service type information indicates the MTC service;
  • the target wireless network control node determines whether the target wireless network node is in network congestion, and rejects the user equipment handover to the target wireless network control node if the target wireless network control node is in network congestion.
  • the determining whether the target wireless network node is in network congestion includes: determining, by the target wireless network control node, whether a current cell load level is higher than a load threshold; If the target radio network control node determines that the current cell load level is higher than the load threshold, determining that the target radio network control node is in network congestion; if the target radio network control node determines that the current cell load level is lower than the load threshold And determining that the target wireless network control node is not in network congestion.
  • the target radio network control node receives the delayable access information by using a relocation request message.
  • the target radio network control node receives the delayable access information by using an enhanced relocation request message.
  • the embodiment of the present invention further provides a method for user equipment handover, which is used to switch a user equipment from a source radio network control node to a target radio network control node, where the method includes: the target radio network control The node receives the delayable access information of the user equipment, where the delayable access information is queried by the user equipment when completing the handover of the radio resource control connection to the target radio network control node, and is queried And sent to the target wireless network control node;
  • the target radio network control node determines whether the target radio network control node is in network congestion, and sends a connection release message to the user equipment if the target radio network control node is in network congestion, so that the user equipment is configured according to the A connection release message releases a radio resource control connection with the target wireless network control node.
  • the determining whether the target wireless network node is in network congestion includes: determining, by the target wireless network control node, whether a current cell load level is higher than a load threshold; If the target radio network control node determines that the current cell load level is higher than the load threshold, determining that the target radio network control node is in network congestion; if the target radio network control node determines that the current cell load level is lower than the load threshold And determining that the target wireless network control node is not in network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the embodiment of the present invention further provides a source network device for user equipment switching, where the source network device includes:
  • a first query module configured to query service type information of the user equipment
  • a first sending module configured to: when the service type information indicates a machine type communication MTC service, send the service type information indicating the MTC service to the target network device, so that the target wireless network control node receives the service based on the service Judging when delaying access information obtained by type information Whether the target wireless network control node is in network congestion, and if the target wireless network control node is in network congestion, the user equipment is rejected from switching to the target wireless network control node.
  • the source network device is a source core network server where the source wireless network control node is located, and the service type information is the delayable access information, the target network The device is the target wireless network control node;
  • the first query module includes: an attribute query sub-module, configured to query device attribute information of the user equipment;
  • an information generating submodule configured to generate delayable access information of the user equipment when the device attribute information indicates an MTC service.
  • the source network device is a source core network server where the source wireless network node is located, the service type information is device attribute information of the user equipment, and the target network is The device is a target core network controller where the target wireless network control node is located; the delayable access information is information generated by the target core network server according to the device attribute information and sent to the target wireless network control node.
  • the source network device is a source wireless network control node
  • the service type information is delayable access information
  • the target network device is controlled by the target wireless network node.
  • the delayable access information is loaded in the relocation requirement message and controlled by the source wireless network Sending the node to the source core network server, and the delayable access information is loaded in the relocation request message sent by the source core network server to the target wireless network control node, where the source The core network server is a core network server where the source wireless network control node is located.
  • the delayable access information is loaded in the relocation request message by the source core network server And being sent to the target wireless network control node by the target core network server, where the target core network server is a core network server where the target wireless network control node is located.
  • the delayable access information is loaded in the enhanced relocation request message by the source wireless The network control node sends to the target wireless network control node.
  • the delayable access information is encapsulated in the source wireless network control node to the target The wireless network control node is sent in a transparent container.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target radio network control node is The current cell load level is lower than the load threshold indicating that the target radio network control node is not in network congestion.
  • the embodiment of the present invention further provides a user equipment, where the user equipment includes: a handover instruction receiving module, configured to receive a handover instruction message sent by a source wireless network control node; and a handover module, configured to control a radio resource The connection is switched to the target wireless network control node; the second query module is configured to query the delayable access information when the RRC connection is completed;
  • a second sending module configured to send the delayable access information to the target wireless network control node when the delayable access information is queried, so that the target wireless network control node receives the user
  • the device may delay the access information, determine whether the target wireless network control node is in network congestion, and send a connection release message to the user equipment if the target wireless network control node is in network congestion;
  • connection release module configured to release a radio resource control connection with the target wireless network control node according to the connection release message.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target radio network control node is The current cell load level is lower than the load threshold indicating that the target radio network control node is not in network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the embodiment of the present invention further provides a target radio network control node for user equipment handover, where the target radio network control node includes:
  • a first receiving module configured to receive a deferrable based on service type information of the user equipment Late access information; the service type information is queried by the source network device and sent to the target network device when determining that the service type information indicates the MTC service;
  • a first determining module configured to determine whether the target wireless network node is in network congestion; and rejecting a switching module, where the determining result of the first determining module is that the target wireless network control node is in network congestion, The user equipment is rejected from switching to the target wireless network control node.
  • the first determining module includes: a load determining submodule, configured to determine whether a current cell load level is higher than a load threshold; and a congestion determining submodule, configured to The determination result of the load judging sub-module is that the target radio network control node determines that the current cell load level is higher than the load threshold, and determines that the target radio network control node is in network congestion;
  • a non-congestion determination sub-module configured to determine, in a case that the determination result of the load determination sub-module is that the target radio network control node determines that a current cell load level is lower than the load threshold, determining that the target radio network control node is not In network congestion.
  • the target radio network control node receives the delayable access information by using a relocation request message.
  • the target radio network control node receives the delayable access information by using an enhanced relocation request message.
  • the embodiment of the present invention further provides another target wireless network control node for user equipment handover, where the target wireless network control node includes:
  • a second receiving module configured to receive delayable access information of the user equipment, where the delayable access information is that the user equipment completes switching the radio resource control connection to the target wireless network control node Querying and sending to the target wireless network control node when the query is received;
  • the second determining module is configured to determine whether the target wireless network control node is in network congestion, and if yes, send a connection release message to the user equipment ;
  • a message sending module configured to send a connection release message to the user equipment if the result of the second determining module is that the target wireless network control node is in network congestion, so that the user terminal is configured according to the a connection release message release with the target wireless network control node Wireless resource control connection between.
  • the second determining module includes: a load determining submodule, configured to determine whether a current cell load level is higher than a load threshold; and a congestion determining submodule, configured to The determination result of the load judging sub-module is that the target radio network control node determines that the current cell load level is higher than the load threshold, and determines that the target radio network control node is in network congestion;
  • a non-congestion determination sub-module configured to determine, in a case that the determination result of the load determination sub-module is that the target radio network control node determines that a current cell load level is lower than the load threshold, determining that the target radio network control node is not In network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the ninth aspect, the embodiment of the present invention further provides another source network device for user equipment switching, where the source network device includes:
  • a processor configured to query service type information of the user equipment
  • a transmitter configured to: when the service type information indicates a machine type communication MTC service, send the service type information indicating the MTC service to the target network device, so that the target wireless network control node receives the service based on the service Determining whether the target wireless network control node is in network congestion when the type information is delayed, and rejecting the user equipment to switch to the target wireless network control if the target wireless network control node is in network congestion node.
  • the source network device is a source core network server where the source wireless network control node is located, and the service type information is the delayable access information
  • the target network is a target wireless network control node
  • the processor is specifically configured to query device attribute information of the user equipment, and generate delayed access information of the user equipment when the device attribute information indicates an MTC service.
  • the source network device is a source core network server where the source wireless network node is located, the service type information is device attribute information of the user equipment, and the target network is The device is a target core network controller where the target wireless network control node is located; the delayable access information is generated by the target core network server according to the device attribute information And sending information to the target wireless network control node.
  • the source network device is a source wireless network control node
  • the service type information is delayable access information
  • the target network device is controlled by the target wireless network. node.
  • the delayable access information is loaded in a relocation requirement message and is controlled by the source wireless network Sending the node to the source core network server, and the delayable access information is loaded in the relocation request message sent by the source core network server to the target wireless network control node, where the source The core network server is a core network server where the source wireless network control node is located.
  • the delayable access information is loaded in the relocation request message by the source core network server And being sent to the target wireless network control node by the target core network server, where the target core network server is a core network server where the target wireless network control node is located.
  • the delayable access information is loaded in the enhanced relocation request message by the source wireless
  • the network control node sends to the target wireless network control node.
  • the delayable access information is encapsulated in the source wireless network control node Sent to the transparent container of the target wireless network control node.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target radio network control node is The current cell load level is lower than the load threshold indicating that the target radio network control node is not in network congestion.
  • the embodiment of the present invention further provides another user equipment, where the user equipment includes: a receiver, configured to receive a handover instruction message sent by a source wireless network control node;
  • a processor configured to switch the radio resource control connection to the target radio network control node, and query the deferrable access information when the radio resource control connection completes the handover, and to release the target wireless according to the connection release message
  • a transmitter configured to send the delayable access information to the target wireless network control node when the delayable access information is queried, so that the target wireless network control node receives the user equipment
  • the access information is delayed, it is determined whether the target wireless network control node is in network congestion, and if the target wireless network control node is in network congestion, a connection release message is sent to the user equipment.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target radio network control node is The current cell load level is lower than the load threshold indicating that the target radio network control node is not in network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the embodiment of the present invention further provides a target wireless network control node for user equipment handover, where the target wireless network control node includes:
  • a receiver configured to receive delayable access information obtained based on service type information of the user equipment; the service type information is queried by the source network device and sent to the target when determining that the service type information indicates the MTC service Network equipment
  • a processor configured to determine whether the target wireless network node is in network congestion, and if the target wireless network control node is in network congestion, rejecting the user equipment to switch to the target wireless network to the control node.
  • the processor is specifically configured to determine whether a current cell load level is higher than a load threshold, if the target radio network control node determines that a current cell load level is higher than a
  • the load threshold determines that the target radio network control node is in network congestion, and determines that the target radio network control node is not in network congestion if the target radio network control node determines that the current cell load level is lower than the load threshold.
  • the target radio network control node receives the delayable access information by using a relocation request message.
  • the target radio network control node receives the delayable access information by using an enhanced relocation request message.
  • the embodiment of the present invention further provides a target wireless network control node for user equipment handover, where the target wireless network control node includes:
  • a receiver configured to receive delayable access information of the user equipment, where the delayable access information is queried by the user equipment when completing a handover of a radio resource control connection to the target wireless network control node And sending to the target wireless network control node when the query is received;
  • a processor configured to determine whether the target wireless network control node is in network congestion, and a transmitter, configured to send a connection release message to the user equipment when the target wireless network control node is in network congestion, so that the user equipment And releasing a radio resource control connection with the target radio network control node according to the connection release message.
  • the processor is specifically configured to determine whether a current cell load level is higher than a load threshold, if the target radio network control node determines that a current cell load level is higher than a
  • the load threshold determines that the target radio network control node is in network congestion, and determines that the target radio network control node is not in network congestion if the target radio network control node determines that the current cell load level is lower than the load threshold.
  • the delayable access information is loaded by the user equipment to the target radio network control node in a handover complete message.
  • the user equipment switching method and the related device in the embodiment of the present invention when the source network device or the user equipment queries the service type information of the UE, sends the service type information to the target network device, so that the target wireless network control node Receiving the delayable access information obtained based on the service type information, and the delayable access information is information that the MTC device does not have the MTC device, so the target wireless network control node receives the delayable access information. , it can be determined that the UE requesting handover is an MTC device.
  • the MTC device having the deferrable access information can be rejected in the device switched by the other radio network control node, so that the target radio network control node is only connected when it is congested.
  • the non-MTC device is added to prevent the H2H service of the non-MTC device from generating a time delay in the transmission.
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for user equipment handover in an embodiment of the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a method for user equipment handover according to an embodiment of the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a method for user equipment handover in an embodiment of the present invention
  • Embodiment 4 is a flowchart of Embodiment 4 of a method for user equipment handover in an embodiment of the present invention
  • FIG. 5 is a flowchart of Embodiment 5 of a method for user equipment handover according to an embodiment of the present invention
  • FIG. 6 is a flowchart of Embodiment 6 of a method for user equipment handover according to an embodiment of the present invention
  • FIG. 7 is a flowchart of Embodiment 7 of a method for user equipment handover according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of Embodiment 1 of a scenario of a method for user equipment handover according to an embodiment of the present invention
  • FIG. 9 is a flowchart of Embodiment 2 of a method for user equipment handover according to an embodiment of the present invention
  • FIG. 11 is a flowchart of a scenario embodiment 4 of a method for user equipment handover according to an embodiment of the present invention
  • FIG. 12 is a flowchart of a user equipment handover according to an embodiment of the present invention
  • FIG. 13 is a structural diagram of Embodiment 1 of a source network device for user equipment handover according to an embodiment of the present invention
  • FIG. 14 is a structural diagram of an implementation manner of a first query module in Embodiment 1 of a source network device according to an embodiment of the present invention.
  • FIG. 15 is a structural diagram of Embodiment 1 of a user equipment according to an embodiment of the present invention.
  • Embodiment 16 is a structural diagram of Embodiment 1 of a target radio network control node device for user equipment handover according to an embodiment of the present invention
  • FIG. 17 is a structural diagram of an embodiment of a first determining module in Embodiment 1 of a target wireless network control node device according to an embodiment of the present invention
  • FIG. 18 is a structural diagram of Embodiment 2 of a target radio network control node apparatus for user equipment handover according to an embodiment of the present invention
  • FIG. 19 is a structural diagram of an embodiment of a second determining module in Embodiment 2 of a target wireless network control node device according to an embodiment of the present invention
  • FIG. 20 is a structural diagram of Embodiment 2 of a source network device for user equipment switching according to an embodiment of the present invention
  • Figure 21 is a structural diagram of Embodiment 2 of a user equipment device according to an embodiment of the present invention.
  • FIG. 22 is a structural diagram of Embodiment 3 of a target radio network control node apparatus for user equipment handover according to an embodiment of the present invention
  • FIG. 23 is a structural diagram of Embodiment 4 of a target radio network control node apparatus for user equipment handover according to an embodiment of the present invention. detailed description
  • the user equipment switching in the embodiment of the present invention is applicable to the switching of the device across the wireless network control node, for example, may be an inter-RNC (Radio Network Controller) handover, or may be an inter-eNB (Evolved Node B, evolved). Base station) handover, cross-BSC (Base Station Controler) handover, and inter-system handover, etc.
  • the core network server may be an MME (Mobility Management Entity, Mobile Management Entity), SGSN (Serving GPRS Support Node, Serving GPRS support node).
  • the inventor has found through long-term research that when the UE needs to switch from the source radio network control node to the target radio network control node, the device that initiates the handover process is not the UE but the source radio network control node.
  • the specific process of handover is that the source radio network control node sends a request to the target radio network control node to handover the UE to the target radio network control node, and then the target radio network control node replies to the source radio network control node to confirm the request or reject the request. Then, the source radio network control node instructs the UE to establish an RRC connection with the target radio network control node upon receiving the acknowledgment reply.
  • the UE since the UE needs to maintain the RRC connection with the source radio network control node when the handover is required, the UE cannot directly send a request to the target radio network control node during the handover process. Therefore, when the UE switches the radio network control node, the target radio network control node can no longer use the request sent by the UE to identify whether the UE is an MTC device, and thus cannot further realize that the target radio network control node cannot be in a network congestion state. Only the handover of the MTC device is denied and the access of the non-MTC device is allowed, which makes it impossible to achieve priority access to the non-MTC device when the target wireless control node is congested.
  • the main idea of the embodiment of the present invention is: when the UE needs to be handed over, if the UE is an MTC device, the network device or user that stores the delayable access information or device attribute information of the UE is utilized.
  • the device sends the delayable access information of the UE to the target radio network control node. Since the deferred access information indicates that the requested service is a service that can accept time delay, the information is only available to the MTC device, not the MTC.
  • the device does not have, therefore, the target radio network control node can determine, according to the delayable access information, that the UE that requests the handover is an MTC device, so that the target radio network control node can reject the handover of the MTC device when in a congested state.
  • Priority access does not include non-MTC devices that can delay access information.
  • the MTC device in the embodiment of the present invention represents an attribute information of the user equipment.
  • it is mainly realized by device attribute information and delayable access information. That is to say, the network device can recognize that the MTC device is based on the delayable access information or the device attribute information reported by the user equipment.
  • the network device identifies the delayable access information, and identifies whether the network device has the delayable access information of the user equipment, and if yes, identifies the user equipment as an MTC device;
  • the device attribute information is identified by identifying the service attribute information of the user equipment on the network device, and if the MTC service is indicated, identifying the user equipment as an MTC device.
  • Embodiment 1 of a method for user equipment handover in an embodiment of the present invention is shown. This embodiment is for switching a user equipment from a source radio network control node to a target radio network control node.
  • the source network device queries the service type information of the user equipment.
  • the service type information stored in the source network device may be Delay Tolerant Access or Device properties of the user equipment, where MTC
  • the device attribute information of the device may be used by the source network device to generate deferrable access information of the user device.
  • the user equipment originally sends the delayable access information to the source wireless network control node when accessing the source wireless network control node, so the source wireless network control node stores the delayable access information
  • the source network device may be The source wireless network control node, the corresponding service type information is delayable access information; for example, when the user equipment originally accesses the source wireless network control node, the device attribute information is saved in the source network where the source wireless network control node is located. Therefore, the source network device may also be a source core network server, and the corresponding service type information is device attribute information or delayable access information.
  • the process of implementing the device attribute information of the MTC device in the source core network server may include: the MTC device sends a NAS (Non-Access Stratum, non-access stratum) to the source core network server.
  • the device attribute information may be carried in the NAS message, and then the source core network server stores the device attribute information.
  • the service type information queried and sent by the source core network server may be delay-access information or may be device attribute information.
  • the method may include: when the handover is initiated, the source core network server queries the device attribute information of the user equipment, and generates the location when the device attribute information indicates the MTC service. Deferred access information of the user equipment.
  • the service type information is the device attribute information
  • the device attribute information queried in 101 may be sent to the target core network service server in 102, so that the target core network server generates the delayable access information according to the device attribute information and sends the information to the target network server.
  • Target wireless network control node when the handover is initiated, the source core network server queries the device attribute information of the user equipment, and generates the location when the device attribute information indicates the MTC service. Deferred access information of the user equipment.
  • the device attribute information queried in 101 may be sent to the target core network service server in 102, so that the target core network server generates the delayable access information according to the device attribute information and sends the information to the target network server.
  • Target wireless network control node may include: when the handover is initiated, the source core network server queries
  • the source wireless network control node stores
  • the implementation process of the delayable access information of the MTC device may include: when accessing the source wireless network control node, the MTC device sends the delayable access information to the source wireless network control node source wireless network in the wireless resource connection establishment request message. Store this delayable access information save. When the handover is initiated, the source wireless network control node can directly query the saved delayable access information of the user equipment.
  • the user equipment that needs to be switched is not necessarily the MTC device. If the user equipment to be switched when the handover is initiated is not the MTC device, the source network device is not queried. The service type information indicating the MTC service of the user equipment is not performed on the user equipment of the non-MTC device.
  • the radio network control node in this embodiment may be a radio network controller RNC, or may be a network device such as an evolved base station eNB or a base station controller BSC; the core network server may be a mobility management entity MME or a serving GPRS support node. SGSN and so on.
  • the source network device sends, when the service type information indicates the machine type communication MTC service, the service type information indicating the MTC service to the target network device, so that the target wireless network control node receives the Determining whether the target wireless network control node is in network congestion when the service type information is delayed, and rejecting the user equipment to switch to the network if the target wireless network control node is in network congestion
  • the target wireless network is given to the control node.
  • the target wireless network control node When the target wireless network control node receives the delayable information, it can be determined that the switched user equipment is an MTC device, and its service is not sensitive to delay. Then, the target wireless network control node determines whether it is in network congestion at the current time. The determining may be based on the current load level of the target radio network control node. Specifically, the current cell load level of the target radio network control node is higher than the load threshold, indicating that the target radio network control node is in network congestion. The current cell load level of the target radio network control node being lower than the load threshold indicates that the target radio network control node is not in network congestion. The load level may be the number of devices currently accessed by the target radio network control node, and/or its radio resource usage status, such as device power.
  • the process of rejecting the handover of the user equipment to the target radio network control node includes: the target radio network control node sends a relocation failure message (Relocation Failure) to the source core network server, the source The core network server sends a relocation preparation failure message to the source radio network control node according to the relocation failure message, and the source radio network control node terminates the handover operation instruction to the user equipment when receiving the relocation preparation failure message.
  • a relocation failure message Relocation Failure
  • the message, so that the user equipment does not establish an RRC connection with the target radio network control node; another possible implementation manner includes: the target radio network control node directly sends an enhanced relocation loss The Enhanced Relocation Failure is sent to the source radio network control node, and the source radio network control node terminates the handover operation to the user equipment when receiving the enhanced relocation failure message, so that the user equipment does not interact with the target radio network control node. Establish an RRC connection.
  • the handover of the user equipment may be permitted by the target radio network control node, and the user equipment may establish an RRC connection with the target radio network control node.
  • the process of allowing the user equipment to switch to the target radio network control node includes: the target radio network control node sends a Relocation Request Acknowledge message to the source core network server.
  • the source core network server sends a relocation command message (Relocation Command) to the source radio network control node according to the relocation request acknowledgement message, and the source radio network control node sends a handover instruction message to the user equipment when receiving the relocation command message ( Handover Command), so that the user equipment establishes an RRC connection with the target radio network control node; another possible implementation manner includes: the target radio network control node directly sends an enhanced relocation response message (Enhanced Relocation Response) to the source radio.
  • the network control node sends a handover instruction message to the user equipment when receiving the enhanced handover failure message, so that the user equipment establishes an RRC connection with the target radio network control node.
  • the source network device may be a source wireless network control node or a source core network server
  • the service type information sent may be delayed access information or device attribute information
  • the target wireless network control is implemented in 102.
  • the node receives the delayable access information of the MTC device. Since different source network devices use different service type information and the communication mechanism between the target wireless network control nodes is different, the implementation of the delayable access information in the 102 to the target wireless network control node may be different. process.
  • the source core network server may send the delayable access information loading relocation request message (Relocation Request) to the target wireless network control node.
  • the source core network server may send the device attribute information to the target core network server, and the target core network service, when the source network device is the source core network server and the service type information is the device attribute information.
  • the device may generate delayable access information according to the device attribute information and send a relocation request message to the target wireless network control node when the device attribute information indicates the MTC service.
  • the source core network server sends the device attribute information to the target core network server, which may be sent when the handover is triggered, or may be sent at some time after the trigger is triggered.
  • the service type information is delayable access information
  • the target network device may be the target wireless network control node.
  • the possible transmission manner of the delayable access information may be first loaded in a relocation required message (Relocation Required) sent by the source wireless network control node to the source core network server, and then loaded in the relocation.
  • the request message is sent by the source core network server to the target wireless network control node, where the source core network server is the core network server where the source wireless network control node is located; the source core network server is different from the target core network server.
  • the delayable access information is loaded in the relocation request message, and the source core network server may send the target wireless network control node to the target wireless network control node by using the target core network server, where
  • the target core network server is a core network server where the target wireless network control node is located; when the source core network server and the target core network server are the same core network server, the delayable access information is sent by the source core network server.
  • the delayable access information is sent by the source core network server.
  • another possible transmission manner of the delayable access information when the source network device is the source wireless network control node may be that the source wireless network control node loads the delayable access information in an enhanced type.
  • the enhanced relocation request message is sent to the target radio network control node.
  • the delayable access information may be encapsulated in the source wireless network control node to the target wireless network control node.
  • a transparent container Transparent Container
  • a transparent container allows information in it to be resolved only in the target device, leaving other transit devices not parsing the information.
  • S101 may be triggered again to continue to request the target wireless network control node to switch the user equipment, so that the target wireless
  • the network control node accesses the user equipment when it is not in a congested state; or, it may trigger the S101 to request another target wireless network control node that meets the handover requirement to switch the user equipment, so that the other target wireless network is not in a congested state.
  • the control node accesses the user equipment.
  • the source network device when the source wireless network control node initiates the handover, sends the service type information of the user equipment indicating the MTC service to the target network device, so that the target wireless network control node receives the service type information.
  • the obtained delayable access information since the delayable access information is information that the MTC device has not the MTC device does not have, the target wireless network control node can recognize that the user equipment is when receiving the delayable access information
  • the MTC device in this way, the target wireless control node can reject the access of the MTC device when it is in a congestion state, thereby realizing that the target wireless network control node refuses to access the MTC device switched from the other wireless network control node when the network is in congestion.
  • the source network device refers to the source core network server where the source wireless network control node is located
  • the target core network server refers to the core network server where the target wireless network control node is located, which will not be described below.
  • Embodiment 2 of a method for user equipment handover in an embodiment of the present invention is shown.
  • This embodiment is a specific implementation manner when the source network device is the source core network server in the foregoing method embodiment 1, where the core network server is a source core network server and/or a target core network server.
  • the core network server receives the relocation requirement message of the user equipment sent by the source radio network control node.
  • the source radio network control node When the user equipment needs to switch from the source radio network control node to the target radio network control node, the source radio network control node sends a relocation requirement message to the core network server.
  • the core network server queries device attribute information of the user equipment.
  • the core network server queries the device attribute information to indicate the MTC service, Generating delayed access information of the user equipment, and transmitting the delayable access information to the target wireless network control node by using a relocation request message, so that the target wireless network control node receives the
  • the access information is delayed, it is determined whether the target target wireless network control node is in network congestion, and if not, sending a relocation request acknowledgement message to the core network server and proceeding to S204, and if yes, to the core network server A relocation failure message is sent and the process proceeds to S206.
  • the core network server that generates the delayable access information according to the device attribute information of the MTC service may be the source core network server, or may be the target core network server.
  • the delayable access information is service type information sent by the source core network server.
  • the query for delaying the access information in the S202 may include: the source core network server querying the device attribute information of the user equipment, and generating the delay of the user equipment when the device attribute information indicates the MTC service Access information.
  • the delayable access information may be that the source core network server transmits to the target wireless network control node via the target core network server through the relocation request message.
  • the device attribute information is the service type information sent by the source core network server, and the target core network server needs to first receive the device attribute information of the user equipment sent by the source core network server. Then, the deferred access information can be generated based on the device attribute information.
  • the embodiment provides an implementation manner of two possible target core network server receiving device attribute information.
  • a possible implementation manner is: after the source core network server receives the relocation requirement message, the source core network server queries the device attribute information of the user equipment, and sends the queried device attribute information to the target core network server, where the target core is When the network server queries that the device attribute information indicates the MTC service, generates the delayable access information and sends the information to the target wireless network control node.
  • the source core network server may be used regardless of whether the UE belongs to the MTC device.
  • the device attribute information is sent to the target core network server, and the target core network server determines whether to generate the delayable access information according to the service type indicated by the device attribute information.
  • the source core network server queries the device attribute information of the user equipment at a certain time before receiving the relocation requirement message (for example, when the source core network server receives the device attribute information of the user equipment) And sending the queried device attribute information to the target core network server, and when the source core network server receives the relocation requirement message, it may forward the message to the target core network service.
  • the target core network server queries the device attribute information of the user equipment, and when the device attribute information is queried to indicate the MTC service, generates delayable access information and sends the information to the target wireless network control node; wherein, the source core The network server sends the device attribute information to the target core network server before the UE handover, and the source core network server does not need the source core network server to query the device attribute information when the UE switches, but is queried by the target core network server.
  • the target core network server generates the delayable access information
  • the foregoing S202 ⁇ S203 are performed by the target core network server, but before S202, the source core network server queries the user equipment.
  • Device attribute information, and the device attribute information is sent to the target core network server when the device attribute information indicates the MTC service.
  • the device attribute information indicating the non-MTC service may be sent by the source core network server to the target core network server, and then the target core network server may query the service indicated by the device attribute information.
  • the core network server receives the relocation request acknowledgement message and generates a relocation instruction message.
  • the relocation command message is used to control the source radio network control node to send a handover instruction message to the user equipment, to complete the handover of the user equipment to the target radio network control node.
  • the core network server sends the relocation command message to the source radio network control node, so that the source radio network control node controls the user equipment to establish an RRC connection with a cell of the target radio network control node. .
  • the source radio network control node controls the user equipment to establish an RRC connection, which can be implemented by sending the foregoing handover instruction to the user equipment.
  • the core network server receives the relocation failure message and generates a relocation preparation failure message.
  • the relocation preparation failure message is used by the core network server to control the source radio network control node not to send a handover instruction to the user equipment, so that the user equipment does not perform handover, so that no RRC connection is established with the target radio network control node.
  • the core network server sends the relocation preparation failure message to the source radio network control node, so that the source radio network control node controls the user equipment not to be in a cell with the target radio network control node. Establish an RRC connection.
  • the core network server in this embodiment may be a source core network server or a target core network server.
  • the target core network server and the source core network server are different, the source core network server and the target wireless network.
  • the information exchange between the control nodes needs to be transited through the target core network server, and the information interaction between the target core network server and the source wireless network control node needs to be transited through the target core network server.
  • the core network server in this embodiment may also include the source core network server and the target core network server, and in the foregoing, perform with the source wireless network control node.
  • the information exchange is the source core network server
  • the information exchange with the target wireless network control node is the target core network server.
  • the source core network server sends the delayable access information or device attribute information of the user equipment to the target core network server, and then the target core network server receives the delayable access information or according to the received
  • the delayable access information generated by the device attribute information is sent to the target wireless network control node, so that the target wireless network control node can identify the handed over MTC device, so that the target wireless network control node rejects the request for MTC device handover when congestion occurs. Therefore, the target wireless network control node preferentially accesses the non-MTC device when congestion occurs, and avoids time delay of data transmission of the H2H service.
  • Embodiment 3 a flowchart of Embodiment 3 of a method for user equipment handover in an embodiment of the present invention is shown.
  • This embodiment is a specific implementation manner when the source network device is a source wireless network control node in the foregoing method embodiment 1, where the interaction between the source wireless network control node and the target wireless network control node is transited through the core network server. get on.
  • the source wireless network control node queries the delayable access information of the user equipment.
  • the source wireless network control node queries the delayable access information, sends the delayable access information to the core network server by using the relocation requirement information, so that the core network server may
  • the delayed access information is sent to the target wireless network control node by using the relocation request information, and the target wireless network control node determines, when receiving the delayable access information, whether the target target wireless network control node is in the network. Congestion, if not, send a relocation request acknowledgement message to the core network server and proceed to S303, and if yes, send a relocation failure message to the core network server and proceed to S305.
  • the core network server in this embodiment includes a source core network server and a target core network server.
  • the source core network server and the target core network server are different core network servers, information is performed with the source wireless network control node.
  • the interaction is the source core network server, and the information exchange with the target wireless network control node is the target core network server. Since the final receiving target of the delayable access information is the target wireless network control node, only the target wireless network control node needs to apply the delayable access information, thereby identifying the switched MTC device, so that the delayable access information can be
  • the package is sent to a transparent container in the source wireless network control node to the target wireless network control node.
  • the relay device such as the core network server can be prevented from parsing the delayable access information, thereby saving the Delay the process and time during the transmission of information.
  • the source radio network control node receives a relocation command message sent by the core network server, where the relocation command message is a relocation request acknowledgement message sent by the core network server according to the target radio network control node. And generated.
  • the source generates a handover instruction message after receiving the relocation instruction message.
  • the source radio network control node controls an establishment of an RRC connection between the user equipment and the target radio network control node.
  • the source radio network control node sends a handover command message to the user equipment, so that the user equipment establishes an RRC connection with the target RNC cell.
  • the source radio network control node receives a relocation preparation failure message sent by the core network server, where the relocation preparation failure message is a relocation failure sent by the core network server according to the target radio network control node. Generated from the message.
  • the source radio network control node does not generate a handover instruction message after receiving the relocation preparation message, so that the control user equipment does not currently establish an RRC connection with the target radio network control node.
  • the source radio network control node controls the user equipment not to establish an RRC connection with the target radio network control node.
  • the delayable access information may be pre-stored in the source wireless network control node, and when the handover is required, the source wireless network control node may delay the access information through the core network.
  • the server sends the target radio network control node, so that the target radio network control node can identify the MTC device that is handed over, thereby rejecting the MTC device handover request when congestion, so that the target radio network control node preferentially accesses the non-MTC device when congested.
  • FIG. 4 a flowchart of Embodiment 4 of a method for user equipment handover in an embodiment of the present invention is shown.
  • This embodiment is another specific implementation manner when the source network device is the source wireless network control node in the foregoing method embodiment 1, where the interaction between the source wireless network control node and the target wireless network control node passes the enhanced message. Directly.
  • the source radio network control node queries the delayable access information of the user equipment.
  • the source wireless network control node sends the delayable access information to the target wireless network control node by using an enhanced relocation request message when the delayed access information is queried, so that the target
  • the target wireless network control node determines, when receiving the delayable access information, whether the target target wireless network control node is in network congestion, if If no, the relocation request acknowledgement message is sent to the core network server and the process proceeds to S403. If yes, the relocation failure message is sent to the core network server and the process proceeds to S404.
  • the enhanced relocation request message may be directly sent by the source radio network control node to the target radio network control node, instead of parsing the message through the core network server, and regenerating the new message. Sending, so you can save time in information transmission.
  • the delayable access information in this embodiment can also be embedded in the transparent container of the source wireless network control node to the target wireless network control node, thereby further saving information transmission time.
  • the source radio network control node receives an enhanced relocation response message directly sent by the target radio network control node, and controls the user equipment to establish an RRC connection with a cell of the target radio network control node.
  • the source radio network control node may control the establishment of the RRC connection between the MTC device and the target radio network control node by sending a handover instruction message to the user equipment.
  • the source radio network control node receives the increase sent by the target radio network control node.
  • a strong relocation failure message and controlling the user equipment not to establish an RRC connection with the target radio network control node.
  • the source radio network control node may implement, by not transmitting the handover instruction message to the user equipment, that the control user equipment does not establish an RRC connection with the target radio network control node.
  • the delayable access information may be pre-stored in the source wireless network control node.
  • the source wireless network control node sends the delayable access information directly to the target wireless through the enhanced signal.
  • the network control node can not only achieve priority access to the non-MTC device when the target wireless network control node is congested, but also avoid the time delay of the data transmission of the H2H service, save the information transmission time, and save the network resources of the core network server.
  • the foregoing embodiment is implemented in such a manner that the target radio network control node performs congestion control when the target radio network control node receives the handover request and rejects the request for user equipment handover when congestion occurs.
  • an implementation manner of implementing congestion control by a target radio network control node may be provided, that is, the target radio network control node first accepts the handed over MTC device, and after establishing an RRC connection with the MTC device, This is achieved by performing congestion control and controlling the MTC device to release the RRC connection during congestion.
  • Embodiment 5 of a method for user equipment handover in an embodiment of the present invention is shown.
  • the embodiment is for switching a user equipment from a source radio network control node to a target radio network control node, wherein the delayable access information is stored in the user equipment.
  • the user equipment receives a handover instruction message sent by the source radio network control node, and switches a radio resource control connection to the target radio network control node.
  • the handover command message is generated by the source radio network control node after the target radio network control node confirms that the handover request of the user equipment is accepted.
  • the source radio network control node needs to first send the handover request of the user equipment to the target radio network control node, and then the target radio network control node confirms the request, and then the source radio network control node regenerates the handover instruction message. , issued to The user device.
  • the user equipment queries, when the RRC connection is complete, to delay access information, and sends the delayable access information to the target wireless when querying the delayable access information.
  • a network control node so that the target wireless network control node determines, according to the delayable access information, whether the target wireless network control node is in network congestion, and sends a connection release message if the target wireless network control node is in network congestion Give the user equipment and go to S503.
  • the user equipment next needs to send a handover complete message to the target radio network control node to notify the target radio network control node that the user equipment has been accessed, so that the user equipment is connected to the radio resource control connection (RRC connection).
  • the delayable information may be loaded in the handover complete message and sent by the user equipment to the target wireless network control node.
  • the user equipment queries the user equipment itself for delaying access information. If the user equipment belongs to the MTC service, the user equipment can query the delayable access information. If the user equipment does not belong to the MTC service, the user equipment The above is the query can not delay access information.
  • the target radio network control node can directly communicate with the user equipment by using the established RRC connection when it is not in a congested state, and does not need to reply to the acknowledgement message of the consent access.
  • determining the network congestion of the target radio network control node may be based on the current load level of the target radio network control node. Specifically, the current cell load level of the target radio network control node is higher than the load threshold to indicate the target. The wireless network control node is in network congestion, and the current cell load level of the target wireless network control node is lower than the load threshold, indicating that the target wireless network control node is not in network congestion.
  • the user equipment releases a radio resource control connection with the target radio network control node according to the connection release message.
  • the user equipment When receiving the connection release message (RRC Connection Release), the user equipment releases the RRC connection between itself and the target radio network control node, thereby releasing an available RRC connected resource of the target radio network control node.
  • RRC Connection Release When receiving the connection release message (RRC Connection Release), the user equipment releases the RRC connection between itself and the target radio network control node, thereby releasing an available RRC connected resource of the target radio network control node.
  • the first embodiment is to first confirm the switching user equipment between the source wireless network control node and the target wireless network control node, and switch the user equipment to The target radio network control node, and then the user equipment sends the delayable access information to the target radio network control node, so that the target radio network control node controls the user equipment to release the established RRC connection when it is in the congestion state. Thereby, the MTC device that is switched is not accessed when the target wireless network control node is congested.
  • the foregoing method embodiments are described in terms of a transmission device that can delay access to information. In order to make the technical solutions of the present invention more comprehensively understood in the art, the method embodiments corresponding to the foregoing will be described in the perspective of a target wireless network control node, which is a receiving device that can delay access information.
  • Embodiment 6 of a method for user equipment handover in an embodiment of the present invention is shown.
  • the embodiment is used to switch the user equipment from the source wireless network control node to the target wireless network control node, where the service type information of the user equipment is sent by the source network device to the target wireless network control node when the handover request is made.
  • the target radio network control node receives delayable access information obtained based on service type information of the user equipment, where the service type information is queried by the source network device and determines that the service type information indicates an MTC service. When sent to the target network device.
  • the source network device is a source wireless network control node or a source core network server, and the service type information is device attribute information or delayable access information.
  • the target network device may be the target wireless network control node; when the service type information is the device attribute information, the target network device may be the target core network server, and the delayable access information is The target core network server generates and sends to the target wireless network control node according to the device attribute information.
  • the target radio network control node may receive the relocation request message sent by the target core network server when receiving the delayable access information, or may also receive the enhanced relocation request sent by the source radio network control node. Message reception.
  • the target radio network control node determines whether the target radio network node is in network congestion. If the target radio network node is in network congestion, the process proceeds to S603.
  • the determining, by the target wireless network control node, the basis of the load level of the current time of the target wireless network control node, the S602 may specifically include: determining, by the target wireless network control node, Whether the pre-cell load level is higher than the load threshold; if the target radio network control node determines that the current cell load level is higher than the load threshold, determining that the target radio network control node is in network congestion; if the target radio network control The node determines that the current cell load level is lower than the load threshold, and determines that the target radio network control node is not in network congestion.
  • determining the load level may be implemented by using a plurality of different factors, for example, determining the number of devices and/or device power currently accessed by the target wireless network control node. The judgment of the load level may determine only the number of access devices or the sum of the powers of the access devices, and may also determine both the number and the power.
  • the load level threshold can be set by a set ratio value that the target wireless network control node can withstand the load level.
  • the threshold of the maximum load tolerance is considered to be the threshold of the load level
  • the threshold of the number of access devices may be 80% of the maximum number of access devices of the target wireless network control node
  • the threshold of the power of the corresponding access device may be The target wireless network control node has a maximum access device power of 80%.
  • the target radio network control node denies the user equipment from switching to the target radio network to the control node.
  • the target radio network control node may identify the MTC device that is switched based on the delayable access information generated based on the service type information of the MTC service sent by the source network device, so that when the congestion is in progress, The switch access request of the MTC device is rejected, and the access to the non-MTC device is preferentially accessed, so that the data transmission of the H2H service is not delayed.
  • FIG. 7 a flowchart of Embodiment 7 of a method for user equipment handover in an embodiment of the present invention is shown. The embodiment is for switching the user equipment from the source radio network control node to the target radio network control node, wherein the delayable access information is sent by the user equipment to the target radio network control node when the handover is completed.
  • the target radio network control node receives the delayable access information of the user equipment, where the delayable access information is that the user equipment completes switching the radio resource control connection to the target wireless network.
  • the control node queries and sends to the target wireless network control node when the query arrives.
  • the delayable access information may be, after the user equipment is finished according to the handover instruction message After the connection is established between the target wireless network control nodes, the loading is sent by the user equipment to the target wireless network control node in the handover complete message.
  • the target radio network control node needs to confirm the handover request of the source radio network control node to the user equipment, and after the handover request is confirmed by the target radio network control node, the source radio network control node A handover instruction message is generated and the handover instruction message is sent to the user equipment.
  • the first confirmation process specifically includes: the target radio network control node receives a relocation request message sent by the source radio network control node by the core network server, where the core network server includes a source core network where the source radio network controller is located a target core network server where the server and the target wireless network control node are located; the target wireless network control node sends a relocation request confirmation message to the core network server, so that the core network server sends a relocation command message to the source wireless
  • the network control node causes the source wireless network control node to generate the handover instruction message and send the handover instruction message to the source device.
  • the second confirmation process specifically includes: the target wireless network control node receiving an enhanced relocation request message directly sent by the source wireless network control node, and directly transmitting the enhanced relocation response message to the source wireless network And controlling the node, so that the source wireless network control node generates a handover instruction message and sends the handover instruction message to the user equipment.
  • the target radio network control node cannot identify the MTC device that is handed over, and the target radio network control node can directly confirm the handover request as long as the target radio network control node can also access the user equipment.
  • the handover control of the target radio network control node to the MTC device is performed when the delayable access information is received after the handover is completed.
  • the target radio network control node determines whether the target radio network control node is in network congestion. If the target radio network control node is in network congestion, the process proceeds to S703.
  • the determining process may include: the target radio network control node determining whether the current cell load level is higher than a load threshold; if the target radio network control node determining the current cell load If the level is higher than the load threshold, determining that the target radio network control node is in network congestion; and if the target radio network control node determines that the current cell load level is lower than the load threshold, determining the target radio network control node. Not in network congestion.
  • the target radio network control node sends a connection release message to the user terminal, so that the user terminal releases a radio resource control connection with the target radio network control node according to the connection release message.
  • the target wireless network control node may receive the delayable access information sent by the user equipment in the handover complete message, and identify the handover by using the The MTC device, in the case of congestion, rejects the handover access request of the MTC device, and implements preferential access to the non-MTC device, thereby ensuring that the H2H service data transmission does not delay.
  • the foregoing method embodiments are described in terms of the same device. In order to enable a person skilled in the art to more fully understand the technical solution of the present invention, the following will be described in terms of signal transmission in accordance with the foregoing method embodiments, in combination with specific scenarios.
  • the user equipment is an MTC device
  • the source wireless control network control node and the target wireless network control node are both a wireless network controller RNC
  • the core network server is a serving GPRS support node SGSN.
  • the source network device is a source RNC
  • the service type information is deferred access information.
  • the information exchanged between the source RNC and the target RNC needs to be performed by using the SGSN.
  • the source RNC sends a relocation requirement message to the SGSN, where the relocation requirement message includes the delayable access information of the MTC device.
  • the source RNC queries the deferred access information pre-stored in itself and embeds the information into the relocation requirement message.
  • the deferrable access information may be encapsulated in a transparent container of the source RNC to the target RNC, and then the relocation requirement message is embedded.
  • the SGSN sends a relocation request message to the target RNC.
  • the SGSN Before transmitting the relocation request message, the SGSN extracts the delayable access information from the received relocation requirement message, and then embeds the delayable access information into the relocation request message. Delayed access information encapsulation In the transparent container, the information is not parsed, and the transparent container is extracted to embed the relocation request message.
  • the target RNC determines whether the load level is higher than the load threshold. If yes, go to S804, if no, go to S806.
  • the process of determining may specifically be whether the number and/or power of the access device at the current time of the target RNC reaches a preset load state threshold.
  • the target RNC sends a relocation request acknowledgement message to the SGSN.
  • the SGSN Upon receiving the relocation request acknowledgement message, the SGSN generates a relocation command message.
  • the SGSN sends a relocation instruction message to the source RNC.
  • the source RNC After receiving the relocation command message, the source RNC sends a handover command message to the MTC device, so that the MTC device establishes an RRC connection with the target RNC.
  • the target RNC sends a relocation failure message to the SGSN.
  • the SGSN Upon receiving the relocation failure message, the SGSN generates a relocation preparation failure message.
  • the target RNC sends a relocation preparation failure message to the source RNC.
  • the source RNC After receiving the relocation command message, the source RNC does not send an instruction message to the MTC device to switch to the target RNC.
  • the source RNC can wait for a certain period of time and then return to S801 to request to switch the MTC device again to the same target RNC, or directly return to S801 to request the switching of the MTC device to other target RNCs that meet the handover request.
  • the target RNC can preferentially access the non-MTC device when the congestion occurs, so that the data transmission of the H2H service does not generate a time delay.
  • the source network device is a source RNC
  • the service type information is deferred access information
  • the information exchanged between the source RNC and the target RNC is directly transmitted through the enhanced message.
  • the source RNC sends an enhanced relocation request message to the target RNC, where the enhanced relocation request message includes delayable access information of the MTC device.
  • the enhanced relocation request message is a relocation request message sent by the source RNC through the enhanced message.
  • the delayable access message of the MTC device is embedded in the enhanced relocation request message.
  • the deferrable access information may be encapsulated in a transparent container from the source RNC to the target RNC, and then Embed an enhanced relocation request message.
  • the target RNC determines whether the load level is higher than the load threshold. If yes, go to S903. If no, go to S904.
  • the process of judgment can be the same as the process judged in S803.
  • the target RNC sends an enhanced relocation response message to the source RNC.
  • the enhanced relocation response message is a relocation request acknowledgement message sent by the target RNC through the enhanced message.
  • the source RNC After receiving the enhanced relocation response message, the source RNC sends a handover command message to the MTC device, so that the MTC device establishes an RRC connection with the target RNC.
  • the target RNC sends an enhanced relocation failure message to the source RNC.
  • An enhanced relocation failure message is a relocation failure message sent by the target RNC through an enhanced message. After receiving the enhanced relocation failure message, the source RNC does not send an instruction message to the MTC device to switch to the target RNC.
  • the source RNC may wait for a certain time and then return to S901 to request to switch the MTC device again to the same target RNC, or may directly return to S901 to request to switch the MTC device to other target RNCs that meet the handover request.
  • the target RNC can preferentially access the non-MTC device during the congestion to ensure that the data transmission of the H2H service does not generate a time delay.
  • the difference between the embodiment and the scenario embodiment 1 is that the source RNC and the source RNC The interactive message between the target RNCs is directly transmitted by the enhanced message, and the SGSN is no longer used as an intermediate device to extract and embed information in the message, so that the flow of the information interaction process can be reduced, thereby saving transmission. time.
  • the source network device is the source SGSN
  • the service type information is the device attribute information or the delayable access information
  • the information exchanged between the source RNC and the target RNC needs to be performed by using the SGSN.
  • the source RNC sends a relocation requirement message to the SGSN.
  • the source RNC sends a relocation requirement message when the MTC device needs to be switched, and the relocation request message does not include the delayable access information of the MTC device.
  • the SGSN sends a relocation request message to the target RNC.
  • the SGSN After receiving the relocation request message, the SGSN according to the pre-stored device of the MTC device The attribute information generation may delay the access information, embed the delayable access information into the relocation request message, and then send the relocation request message.
  • the device that generates the delayable access information may be the source SGSN or the target SGSN.
  • the service type information is delayable access information, which is sent by the source SGSN to the target SGSN, and then sent by the target SGSN to the target RNC.
  • the service type information is device attribute information, and the device attribute information may be sent by the source SGSN to the target SGSN after receiving the relocation request message, or may be the source SGSN at 1002. Any previous time is sent to the target SGSN and saved by the target SGSN.
  • the target RNC determines whether the load level is higher than the load threshold. If yes, go to S1004. If no, go to S1006.
  • the target RNC sends a relocation request acknowledgement message to the SGSN.
  • the SGSN Upon receiving the relocation request message, the SGSN generates a relocation instruction message.
  • the SGSN sends a relocation command message to the source RNC.
  • the source RNC After receiving the relocation command message, the source RNC sends a handover command message to the MTC device, so that the MTC device establishes an RRC connection with the target RNC.
  • the target RNC sends a relocation failure message to the SGSN.
  • the SGSN Upon receiving the relocation failure message, the SGSN generates a relocation preparation failure message.
  • Target The RNC sends a relocation preparation failure message to the source RNC.
  • the source RNC After receiving the relocation command message, the source RNC does not send the switch to the target to the MTC device.
  • the source RNC can wait for a certain period of time and then return to S1001 to request the MTC device to be switched again to the same target RNC. Alternatively, it can directly return to S1001 to request the switching of the MTC device to other target RNCs that meet the switching requirements.
  • the target RNC can preferentially access the non-MTC device during the congestion to ensure that the data transmission of the H2H service does not generate a time delay.
  • the difference between this embodiment and the scenario embodiments 1 and 2 above is that The delayable access information is generated by the SGSN according to the saved device attribute information, and the source RNC is no longer required to send the delayable access information, thereby reducing the need for the source RNC to perform. The operation saves the network resources of the source RNC.
  • the delayable access information is sent by the MTC device to the target RNC, and the information exchanged between the source RNC and the target RNC needs to be performed by the SGSN.
  • the source RNC sends a relocation requirement message to the SGSN.
  • the SGSN sends a relocation request message to the target RNC.
  • the target RNC sends a relocation request acknowledgement message to the SGSN.
  • the SGSN sends a relocation instruction message to the source RNC.
  • the source RNC sends a handover instruction message to the MTC device.
  • the MTC device When the MTC device receives the handover command message, it establishes an RRC connection with the target RNC.
  • the MTC device sends a handover complete message to the target RRC, where the handover complete message includes the delayable access information queried by the MTC device.
  • the handover complete message is sent over the established RRC connection after the MTC device has established an RRC connection with the target RNC.
  • the target RNC determines whether the load level is higher than the load threshold. If yes, enter S1108: The process of determining may also adopt the judgment process of S804.
  • the target RNC sends an RRC connection release message to the MTC device.
  • the MTC device After receiving the RRC Connection Release message, the MTC device releases the RRC connection with the target RNC.
  • the MTC device can wait for a certain time to send an access request to the target RNC to request access to the target RNC again, or directly send an access request to other RNCs to access other RNCs that meet the requirements.
  • the difference between this embodiment and the scenario embodiments 1, 2, and 3 is that the target RNC first accesses the switched MTC device, so that an RRC connection is established between the MTC device and the target RNC, and then the MTC can be in the handover complete message.
  • the delayed access information is sent to the target RNC, so that the target RNC preferentially accesses the non-MTC device during congestion to ensure that the data transmission of the H2H service does not generate a time delay, so that there is no need to change between the existing source RNC and the target RNC.
  • the implementation of the handover UE reduces the number of devices that need to be modified in the network transformation to reduce the cost of the transformation. Referring to FIG.
  • a flowchart of a scenario embodiment 5 of a method for user equipment handover in an embodiment of the present invention is shown.
  • the delayable access information is sent by the MTC device to the target RNC, and the information exchanged between the source RNC and the target RNC is directly transmitted through the enhanced message.
  • S1201 The source RNC sends an enhanced relocation request message to the target RNC.
  • the target RNC sends an enhanced relocation response message to the source RNC.
  • the source RNC sends a handover instruction message to the MTC device.
  • the MTC device When the MTC device receives the handover command message, it establishes an RRC connection with the target RNC.
  • the MTC device sends a handover complete message to the target RNC, where the handover complete message includes delayable access information of the MTC device.
  • the handover complete message is sent over the established RRC connection after the MTC device has established an RRC connection with the target RNC.
  • the target RNC determines whether the load level is higher than the load threshold. If yes, the process proceeds to S1206: The process of determining may also adopt the judgment process of S804.
  • the target RNC sends an RRC connection release message to the MTC device.
  • the MTC device After receiving the RRC Connection Release message, the MTC device releases the RRC connection with the target RNC.
  • the MTC device may wait for a certain time to send an access request to the target RNC to request access to the target RNC again, or directly send an access request to other RNCs to access other RNCs that meet the requirements.
  • the technical solution of the scenario embodiment 4 can be implemented to ensure that the target RNC preferentially accesses the non-MTC device during congestion without changing the implementation manner of the handover UE between the existing source RNC and the target RNC.
  • the data transmission of the H2H service does not cause a time delay.
  • the difference between this embodiment and the scenario embodiment 4 is that the interaction message between the source RNC and the target RNC is directly transmitted by using an enhanced message, so that the flow of the information interaction process can be reduced, thereby saving transmission time.
  • the SGSN includes a source SGSN and a target SGSN. If the SGSN and the RNC exchange data, if the source RNC and the target RNC are located in different SGSNs, the source SGSN is the message that interacts with the source RNC, and the target SGSN is the message with the target SGSN, and the source SGSN and the target RNC. The interactive message needs to be forwarded through the target SGSN, correspondingly, the target The message exchanged between the SGSN and the source RNC also needs to be forwarded through the source SGSN.
  • the embodiment of the present invention further provides a source network device for user equipment switching. Referring to Fig.
  • the source network device of this embodiment is configured to switch the user equipment from the source wireless network control node to the target wireless network control node, where the source network device includes: a first query module 1301, configured to query the service of the user equipment
  • the first sending module 1302 is configured to: when the service type information indicates the machine type communication MTC service, send the service type information indicating the MTC service to the target network device, so that the target wireless network control node receives the Determining whether the target wireless network control node is in network congestion, and rejecting the user equipment to switch to the network if the target wireless network control node is in network congestion when the access information is delayed based on the service type information.
  • the target wireless network control node is configured to switch the user equipment from the source wireless network control node to the target wireless network control node, where the source network device includes: a first query module 1301, configured to query the service of the user equipment
  • the first sending module 1302 is configured to: when the service type information indicates the machine type communication MTC service, send the service type information indicating the M
  • the source network device is a source core network server where the source wireless network control node is located, and the service type information is the delayable access
  • the target network device is the target wireless network control node.
  • the first query module 1301 may include: an attribute query sub-module 1401, configured to query device attributes of the user equipment.
  • the information generating sub-module 1402 is configured to generate a delayable access message of the user equipment when the device attribute information represents the MTC service.
  • the source network device is a source core network server where the source wireless network node is located, and the service type information is a device attribute of the user equipment.
  • the target network device is a target core network controller where the target wireless network control node is located; the delayable access information is generated by the target core network server according to the device attribute information and sent to the target Wireless network control node information
  • the source network device is a source radio network control node
  • the service type information is deferred access information
  • the target network device is Target wireless network control node.
  • the delayable access information is loaded in the relocation requirement message, based on the foregoing third possible implementation manner of the foregoing embodiment.
  • the source core network server is a core network server where the source wireless network control node is located.
  • the delayable access information is loaded in the relocation request message, based on the fourth possible implementation manner of the foregoing embodiment. And being sent by the source core network server to the target wireless network control node by the target core network server, where the target core network server is a core network server where the target wireless network control node is located.
  • the delayable access information is loaded in the enhanced relocation based on the foregoing third possible implementation manner of the foregoing embodiment.
  • the request message is sent by the source radio network control node to the target radio network control node.
  • the delayable access information may be encapsulated in the source wireless network, according to any one of the foregoing third to sixth possible implementation manners.
  • the control node sends to the transparent container of the target wireless network control node.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target wireless The current cell load level of the network control node being lower than the load threshold indicates that the target radio network control node is not in network congestion.
  • the source network device sends the service type information of the user equipment to the target network device when the source wireless network control node initiates the handover, so that the target wireless network control node receives the service type information.
  • the delayable access information can realize that the target wireless network control node refuses to access the MTC device switched from the other wireless network control node when the network is congested, so as to preferentially access the non-MTC device when the network is congested, thereby avoiding the non-MTC.
  • the H2H service of the device generates a time delay in transmission.
  • the embodiment of the present invention further provides a user equipment, which is used to implement that the user equipment itself switches the user equipment from the source wireless network control node to the target wireless network control section.
  • a user equipment which is used to implement that the user equipment itself switches the user equipment from the source wireless network control node to the target wireless network control section.
  • Point Referring to FIG. 15, a structural diagram of Embodiment 1 of a user equipment device in an embodiment of the present invention is shown.
  • the user equipment of this embodiment may include: a handover instruction receiving module 1501, configured to receive a handover instruction message sent by a source radio network control node; a handover module 1502, configured to switch a radio resource control connection to a target radio network control node;
  • the querying module 1503 is configured to query the delayable access information when the RRC connection is completed, and the second sending module 1504 is configured to: when the queried access information is queried, the delayable access Sending information to the target wireless network control node, so that when the target wireless network control node receives the delayable access information of the user equipment, determining whether the target wireless network control node is in network congestion, if
  • the target radio network control node sends a connection release message to the user equipment when the network is congested, and the connection release module 1505 is configured to release the radio resource control connection with the target radio network control node according to the connection release message.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target wireless The current cell load level of the network control node being lower than the load threshold indicates that the target radio network control node is not in network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • an embodiment of the present invention further provides a target radio network control node for user equipment handover.
  • a structural diagram of Embodiment 1 of a target radio network control node apparatus for user equipment handover in an embodiment of the present invention is shown.
  • the target radio network control node of this embodiment may be configured to switch a user equipment from a source radio network control node to the target radio network control node, where the target radio network control node may
  • the first receiving module 1601 is configured to delay the access information obtained based on the service type information of the user equipment; the service type information is queried by the source network device, and determining that the service type information indicates the MTC service
  • the first determining module 1602 is configured to determine whether the target wireless network node is in network congestion; the rejecting switch module 1603 is configured to determine, at the first determining module 1602, the target When the wireless network control node is in a network congestion, the user equipment is rejected from switching to the target wireless network control node.
  • the first determining module 1602 may include: a load determining sub-module 1701, configured to determine whether a current cell load level is higher than a load threshold; the congestion determining sub-module 1702, configured to determine, when the determination result of the load determining sub-module 1701 is that the target radio network control node determines that the current cell load level is higher than the load threshold, The network control node is in network congestion; the non-congestion determination sub-module 1703 is configured to: when the determination result of the load determination sub-module 1701 is that the target radio network control node determines that the current cell load level is lower than the load threshold, It is determined that the target wireless network control node is not in network congestion.
  • the target radio network control node receives the delayable access information by using a relocation request message.
  • the target radio network control node receives the delayable access information by using an enhanced handover request message.
  • Embodiment 2 of a target radio network control node apparatus for user equipment handover in the embodiment of the present invention is shown.
  • the target radio network control node of the embodiment may be configured to switch the user equipment from the source radio network control node to the target radio network control node, where the target radio network control node may include: a second receiving module 1801, configured to receive Delayable access information of the user equipment; wherein, the delayable access information is queried by the user equipment when completing the handover of the radio resource control connection to the target radio network control node, and is sent when the query is received
  • the second determining module 1802 is configured to determine whether the target wireless network control node is in network congestion; and the release message sending module 1803 is configured to determine the result in the second determining module 1802. Sending a connection release message to the target if the target wireless network control node is in network congestion And the user equipment, so that the user terminal releases the radio resource control connection with the target radio network control node according to the connection release message.
  • the second determining module 1802 includes: a load determining sub-module 1701, configured to determine whether a current cell load level is higher than a load threshold;
  • the congestion determining sub-module 1702 is configured to determine, in a case where the determination result of the load determining sub-module 1701 is that the target radio network control node determines that the current cell loading level is higher than the load threshold, determining the target radio network control node.
  • the non-congestion determination sub-module 1703 is configured to determine, when the determination result of the load determination sub-module 1701 is that the target radio network control node determines that the current cell load level is lower than the load threshold.
  • the target radio network control node is not in network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the target wireless network control node may send the delayed access information or the user equipment according to the service type information indicating the MTC service sent according to the source network device.
  • the MTC device can be delayed by the access information, so that the handover access request of the MTC device is rejected when the communication is congested, and the access to the non-MTC device is preferentially accessed, so that the H2H service data transmission is not delayed.
  • the embodiment of the present invention further provides a source network device for user equipment switching. Referring to FIG. 20, a structural diagram of Embodiment 2 of a source network device for user equipment switching in the embodiment of the present invention is shown.
  • the source network device may include: a processor 2001, configured to query a service type of the user equipment.
  • the transmitter 2002 is configured to: when the service type information indicates a machine type communication MTC service, send the service type information indicating the MTC service to the target network device, so that the target wireless network control node receives the When the access type information obtained by the service type information is delayed, it is determined whether the target wireless network control node is in network congestion, and if yes, the user equipment is rejected from switching to the target wireless network control node.
  • the source network device is a source core network server where a source wireless network control node is located, and the service type information is the delayable access Information
  • the target network device is a target wireless network control node
  • the processor 2001 is specifically configured to query device attribute information of the user equipment, and generate the user equipment when the device attribute information indicates an MTC service Delay access information.
  • the source network device is a source core network server where the source wireless network node is located, and the service type information is device attribute information of the user equipment
  • the target network device is a target core network controller where the target wireless network control node is located; the delayable access information is generated by the target core network server according to the device attribute information and sent to the target wireless network. Control node information.
  • the source network device is a source radio network control node
  • the service type information is deferred access information
  • the target network device is Target wireless network control node.
  • the delayable access information is loaded in the relocation requirement message, based on the foregoing third possible implementation manner of the foregoing embodiment. And being sent by the source radio network control node to the source core network server, and the delayable access information is loaded in the relocation request message and sent by the source core network server to the target radio network control node.
  • the source core network server is a core network server where the source wireless network control node is located.
  • the delayable access information is loaded in the relocation request message, based on the fourth possible implementation manner of the foregoing embodiment. And being sent by the source core network server to the target wireless network control node by the target core network server, where the target core network server is a core network server where the target wireless network control node is located.
  • the delayable access information is loaded in the enhanced relocation based on the foregoing third possible implementation manner of the foregoing embodiment.
  • the request message is sent by the source radio network control node to the target radio network control node.
  • the delayable access information may be encapsulated in the source according to any one of the foregoing third to sixth possible implementation manners.
  • the wireless network control node transmits to the transparent container of the target wireless network control node.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target wireless The current cell load level of the network control node being lower than the load threshold indicates that the target radio network control node is not in network congestion.
  • the target wireless network control node may refuse to access the MTC device switched from the other wireless network control node when the network is in congestion, so as to preferentially access the non-MTC device when the network is in congestion. Therefore, the H2H service of the non-MTC device is prevented from generating a time delay in transmission.
  • the embodiment of the present invention further provides another user equipment, which is used to implement the user equipment handover. Referring to FIG. 21, a structural diagram of Embodiment 2 of a user equipment device in an embodiment of the present invention is shown.
  • the user equipment includes: a receiver 2101, configured to receive a handover instruction message sent by a source wireless network control node; and a processor 2102, And configured to switch the radio resource control connection to the target radio network control node, and query the deferrable access information when the radio resource control connection completes the handover, and to release the target radio network control node according to the connection release message A wireless resource control connection between.
  • the transmitter 2103 is configured to send the delayable access information to the target wireless network control node when the delayable access information is queried, so that the target wireless network control node receives the user equipment
  • the access information is delayed, it is determined whether the target wireless network control node is in network congestion, and if the target wireless network control node is in network congestion, a connection release message is sent to the user equipment.
  • the current cell load level of the target radio network control node is higher than a load threshold, indicating that the target radio network control node is in network congestion, and the target wireless The current cell load level of the network control node being lower than the load threshold indicates that the target radio network control node is not in network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the target wireless network can be controlled When the node is in a congested state, the user equipment is controlled to release the established RRC connection, so that the MTC device that is not switched when the target radio network control node is congested can be prevented.
  • another embodiment of the present invention provides a target wireless network control node for user equipment handover. Referring to FIG.
  • the target radio network control node includes: a receiver 2201, configured to receive Deferred access information obtained by the service type information of the user equipment; the service type information is queried by the source network device and sent to the target network device when determining that the service type information indicates the MTC service; the processor 2202, Determining whether the target wireless network node is in network congestion, and rejecting the user equipment handover to the target wireless network control node if the target wireless network control node is in network congestion.
  • the processor 2202 is specifically configured to determine whether a current cell load level is higher than a load threshold, if the target radio network control node determines a current cell load. If the level is higher than the load threshold, determining that the target radio network control node is in network congestion, and determining that the target radio network control node is not in the network if the target radio network control node determines that the current cell load level is lower than the load threshold. Network congestion.
  • the target radio network control node receives the delayable access information by using a relocation request message.
  • the target radio network control node receives the delayable access information by using an enhanced relocation request message.
  • the target radio network control node includes: a receiver 2301, configured to receive the user. Delayable access information of the device; wherein the delayable access information is queried by the user equipment when completing the handover of the radio resource control connection to the target radio network control node, and is sent to the a processor 2302, configured to determine whether the target wireless network control node is in network congestion, and a transmitter 2303, configured to send a connection release message to the network when the target wireless network control node is in network congestion User equipment, such that the user equipment is released from the target wireless network control node according to the connection release message Wireless resource control connection.
  • the processor 2302 is specifically configured to determine whether a current cell load level is higher than a load threshold, if the target radio network control node determines a current cell load. If the level is higher than the load threshold, determining that the target radio network control node is in network congestion, and determining that the target radio network control node is not in the network if the target radio network control node determines that the current cell load level is lower than the load threshold. Network congestion.
  • the delayable access information is sent by the user equipment to the target wireless network control node in a handover complete message.
  • the technical solution of the embodiment of the target wireless network control node device of the present invention can reject the handover access request of the MTC device when the congestion is in progress, and realize the preferential access to the non-MTC device, so as to ensure that the H2H service data transmission does not delay.
  • the above functional assignments may be completed by different functional modules as needed.
  • the internal structure of the device is divided into different functional modules to perform all or part of the functions described above.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例公开了一种用户设备切换的方法及相关设备。所述方法包括:源网络设备查询所述用户设备的业务类型信息;所述源网络设备在确定所述业务类型信息表示MTC业务时,将所述表示MTC业务的业务类型信息发送给目标网络设备,以便所述目标无线网络控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时,判断所述目标无线网络控制节点是否处于处于网络拥塞,如果是则拒绝所述用户设备切换至所述目标无线网络控制节点。通过本发明实施例的技术方案,目标无线网络控制节点在拥塞时可以通过拒绝接入切换来的MTC设备而保证优先接入非MTC设备,从而避免H2H业务的数据传输产生时间延迟。

Description

一种用户设备切换的方法及相关设备
技术领域
本发明涉及用户设备通信领域,特别是涉及一种用户设备切换的方法及相 关设备。 背景技术
目前, 机器与机器之间 ( Machine To Machine, M2M )所进行的机器类通 信( Machine Type Communications, MTC )业务发展迅速, 常见的 MTC业务 有智能抄表、 智能交通、 智能医疗等。 虽然当前 MTC业务大多是通过传统的 传感器网络来实现通信的,但是, 由于传感器网络所能承载的通信信息量及所 能搭建的通信网络都十分有限, 所以, 将传感器网络与移动通信网络相结合, 使 MTC设备之间的信息交互加入移动通信网络来实现 MTC业务, 就成为了 MTC业务实现的一种必然趋势。
移动通信网络在同时实现 MTC 业务和普通的人与人之间 (Human To
Human , Η2Η ) 所进行的通信业务的过程中, 接入网络的用户设备( User Equipment, UE )有 MTC业务的 MTC设备和 H2H业务的非 MTC设备。 这 些设备在发起业务时, 都需要先与无线网络控制节点之间建立无线资源控制 ( Radio Resource Control, RRC )连接, 完成之后才能与该无线网络控制节点 对应的核心网进行信息交互。
在移动通信网络中, 相比 H2H业务, MTC业务中数据在交互时往往可以 接受一定的时间延迟。 因此, 如果移动通信网络出现拥塞、 网络资源的分配受 到限制的情况下, 网络侧需要优先将非 MTC设备接入网络, 而暂时拒绝 MTC 设备的接入请求,从而避免非 MTC设备的 H2H业务产生数据传输的时间延迟。
现有技术中, 对于网络侧的无线网络控制节点, UE在发起业务时, 无线 网络控制节点可以根据 UE所发送的 RRC建立请求消息来实现在无线网络控 制节点发生网络拥塞的时候优先接入非 MTC设备。 但是, 在接入网络以后, 由于 UE的位置变更、 源无线网络控制节点资源不足等原因, UE经常需要由 源无线网络控制节点切换到另一个不同的目标无线网络控制节点下。而由于在 切换时, 无线网络控制节点、 UE等设备之间的通信机制与 UE发起业务时不 同, 现有技术中无法实现目标无线网络控制节点在处于网络拥塞时拒绝 MTC 设备的切换, 从而导致非 MTC设备无法优先获取目标无线网络控制节点的资 源, 导致 H2H业务的数据在传输上产生时间延迟。 发明内容
本发明实施例所要解决的技术问题是,提供一种用户设备切换的方法及相 关设备,以解决现有技术中由于目标无线网络控制节点在处于网络拥塞时无法 实现拒绝 MTC设备的切换而导致非 MTC设备无法优先获取目标无线网络控制 节点的资源, 以及由此导致的 H2H业务的数据在传输上产生时间延迟的问题。
第一方面, 本发明实施例提供了一种用户设备切换的方法, 该方法包括: 第一方面, 本发明实施例提供了一种用户设备切换的方法, 用于将所述用 户设备从源无线网络控制节点切换到目标无线网络控制节点, 该方法包括: 源网络设备查询所述用户设备的业务类型信息;
所述源网络设备在确定所述业务类型信息表示机器类通信 MTC业务时, 将所述表示 MTC业务的业务类型信息发送给目标网络设备, 以便所述目标无 线网络控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时, 判断所述目标无线网络控制节点是否处于网络拥塞 ,如果所述目标无线网络控 制节点处于网络拥塞则拒绝所述用户设备切换至所述目标无线网络控制节点。
在第一方面的第一种可能的实现方式中,所述源网络设备为所述源无线网 络控制节点所在的源核心网服务器, 所述业务类型信息为所述可延迟接入信 息, 所述目标网络设备为所述目标无线网络控制节点; 所述源网络设备查询所 述用户设备的业务类型信息, 包括: 所述源核心网服务器查询所述用户设备的 设备属性信息, 并在所述设备属性信息表示 MTC业务时生成所述用户设备的 可延迟接入信息。
在第一方面的第二种可能的实现方式中,所述源网络设备为所述源无线网 络节点所在的源核心网服务器,所述业务类型信息为所述用户设备的设备属性 信息,所述目标网络设备为所述目标无线网络控制节点所在的目标核心网控制 器;所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息生成 并发送给所述目标无线网络控制节点的信息。
在第一方面的第三种可能的实现方式中,所述源网络设备为所述源无线网 络控制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设备为所述 目标无线网络控制节点。
在第一方面的第四种可能的实现方式中,结合第一方面的第三种可能的实 现方式,所述可延迟接入信息是载入在重定位需求消息中由所述源无线网络控 制节点发送至源核心网服务器的, 并且, 所述可延迟接入信息是载入在重定位 请求消息中由所述源核心网服务器发送至所述目标无线网络控制节点的, 其 中, 所述源核心网服务器为所述源无线网络控制节点所在的核心网服务器。
在第一方面的第五种可能的实现方式中,结合第一方面的第四种可能的实 现方式,所述可延迟接入信息是载入在重定位请求消息中由所述源核心网服务 器经目标核心网服务器发送至所述目标无线网络控制节点的, 其中, 所述目标 核心网服务器为目标无线网络控制节点所在的核心网服务器。
在第一方面的第六种可能的实现方式中,结合第一方面的第三种可能的实 现方式,所述可延迟接入信息是载入在增强型重定位请求消息中由所述源无线 网络控制节点发送至所述目标无线网络控制节点的。
在第一方面的第七种可能的实现方式中,结合第一方面的第三至六种可能 的实现方式中的任意一种,所述可延迟接入信息封装在所述源无线网络控制节 点至所述目标无线网络控制节点的透明容器中发送。
在第一方面的第八种可能的实现方式中,所述目标无线网络控制节点的当 前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞, 所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标 无线网络控制节点未处于网络拥塞。
第二方面, 本发明实施例还提供了另一种用户设备切换的方法, 用于将用 户设备从源无线网络控制节点切换到目标无线网络控制节点, 所述方法包括: 所述用户设备接收所述源无线网络控制节点发送的切换指令消息,将无线 资源控制连接切换至所述目标无线网络控制节点; 所述用户设备在所述无线资源控制连接完成切换时, 查询可延迟接入信 息,并在查询到所述可延迟接入信息时将所述可延迟接入信息发送给所述目标 无线网络控制节点,以便所述目标无线网络控制节点在接收到所述用户设备的 可延迟接入信息时, 判断所述目标无线网络控制节点是否处于网络拥塞,如果 所述目标无线网络控制节点处于网络拥塞则发送连接释放消息给所述用户设 备;
所述用户设备根据所述连接释放消息释放与所述目标无线网络控制节点 之间的无线资源控制连接。
在第二方面的第一种可能的实现方式中,所述目标无线网络控制节点的当 前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞, 所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标 无线网络控制节点未处于网络拥塞。
在第二方面的第二种可能的实现方式中,所述可延迟接入信息是载入在切 换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
第三方面, 本发明实施例还提供了又一种用户设备切换的方法, 用于将用 户设备从源无线网络控制节点切换到目标无线网络控制节点, 所述方法包括: 所述目标无线网络控制节点接收基于所述用户设备的业务类型信息而得 到的可延迟接入信息;所述业务类型信息是由源网络设备查询并在确定所述业 务类型信息表示 MTC业务时发送给目标网络设备的;
所述目标无线网络控制节点判断所述目标无线网络节点是否处于网络拥 塞,如果所述目标无线网络控制节点处于网络拥塞则拒绝所述用户设备切换至 所述目标无线网络控制节点。
在第三方面的第一种可能的实现方式中,所述判断所述目标无线网络节点 是否处于网络拥塞, 包括: 所述目标无线网络控制节点判断当前小区负载水平 是否高于负载门限;如果所述目标无线网络控制节点判断当前小区负载水平高 于所述负载门限, 则确定所述目标无线网络控制节点处于网络拥塞; 如果所述 目标无线网络控制节点判断当前小区负载水平低于所述负载门限,则确定所述 目标无线网络控制节点未处于网络拥塞。 在第三方面的第二种可能的实现方式中,所述目标无线网络控制节点通过 重定位请求消息接收所述可延迟接入信息。
在第三方面的第三种可能的实现方式中,所述目标无线网络控制节点通过 增强型重定位请求消息接收所述可延迟接入信息。
第四方面, 本发明实施例还提供了再一种用户设备切换的方法, 用于将用 户设备从源无线网络控制节点切换到目标无线网络控制节点, 所述方法包括: 所述目标无线网络控制节点接收所述用户设备的可延迟接入信息; 其中, 所述可延迟接入信息是由所述用户设备在完成将无线资源控制连接切换至所 述目标无线网络控制节点时查询并在查询到时发送给所述目标无线网络控制 节点的;
所述目标无线网络控制节点判断所述目标无线网络控制节点是否处于网 络拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消息给 所述用户设备,以便所述用户设备根据所述连接释放消息释放与所述目标无线 网络控制节点之间的无线资源控制连接。
在第四方面的第一种可能的实现方式中,所述判断所述目标无线网络节点 是否处于网络拥塞, 包括: 所述目标无线网络控制节点判断当前小区负载水平 是否高于负载门限;如果所述目标无线网络控制节点判断当前小区负载水平高 于所述负载门限, 则确定所述目标无线网络控制节点处于网络拥塞; 如果所述 目标无线网络控制节点判断当前小区负载水平低于所述负载门限,则确定所述 目标无线网络控制节点未处于网络拥塞。
在第四方面的第二种可能的实现方式中,所述可延迟接入信息是载入在切 换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
第五方面, 本发明实施例还提供了一种用于用户设备切换的源网络设备, 所述源网络设备包括:
第一查询模块, 用于查询所述用户设备的业务类型信息;
第一发送模块, 用于在所述业务类型信息表示机器类通信 MTC业务时, 将所述表示 MTC业务的业务类型信息发送给目标网络设备, 以便目标无线网 络控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时,判断 所述目标无线网络控制节点是否处于网络拥塞,如果所述目标无线网络控制节 点处于网络拥塞则拒绝所述用户设备切换至所述目标无线网络控制节点。
在第五方面的第一种可能的实现方式中,所述源网络设备为源无线网络控 制节点所在的源核心网服务器, 所述业务类型信息为所述可延迟接入信息, 所 述目标网络设备为所述目标无线网络控制节点; 所述第一查询模块包括: 属性查询子模块, 用于查询所述用户设备的设备属性信息;
信息生成子模块, 用于在所述设备属性信息表示 MTC业务时生成所述用 户设备的可延迟接入信息。
在第五方面的第二种可能的实现方式中,所述源网络设备为源无线网络节 点所在的源核心网服务器, 所述业务类型信息为所述用户设备的设备属性信 息, 所述目标网络设备为所述目标无线网络控制节点所在的目标核心网控制 器;所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息生成 并发送给所述目标无线网络控制节点的信息。
在第五方面的第三种可能的实现方式中,所述源网络设备为源无线网络控 制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设备为所述目标 无线网络控制节点。
在第五方面的第四种可能的实现方式中,结合第五方面的第三种可能的实 现方式,所述可延迟接入信息是载入在重定位需求消息中由所述源无线网络控 制节点发送至源核心网服务器的, 并且, 所述可延迟接入信息是载入在重定位 请求消息中由所述源核心网服务器发送至所述目标无线网络控制节点的, 其 中, 所述源核心网服务器为所述源无线网络控制节点所在的核心网服务器。
在第五方面的第五种可能的实现方式中,结合第五方面的第四种可能的实 现方式,所述可延迟接入信息是载入在重定位请求消息中由所述源核心网服务 器经目标核心网服务器发送至所述目标无线网络控制节点的, 其中, 所述目标 核心网服务器为目标无线网络控制节点所在的核心网服务器。
在第五方面的第六种可能的实现方式中,结合第五方面的第三种可能的实 现方式,所述可延迟接入信息是载入在增强型重定位请求消息中由所述源无线 网络控制节点发送至所述目标无线网络控制节点的。 在第五方面的第七种可能的实现方式中,结合第五方面的第三至六种可能 的实现方式中的任意一种,所述可延迟接入信息封装在源无线网络控制节点至 目标无线网络控制节点的透明容器中发送。
在第五方面的第八种可能的实现方式中,所述目标无线网络控制节点的当 前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞, 所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标 无线网络控制节点未处于网络拥塞。
第六方面, 本发明实施例还提供了一种用户设备, 所述用户设备包括: 切换指令接收模块, 用于接收源无线网络控制节点发送的切换指令消息; 切换模块, 用于将无线资源控制连接切换至目标无线网络控制节点; 第二查询模块, 用于在所述无线资源控制连接完成切换时, 查询可延迟接 入信息;
第二发送模块,用于在查询到所述可延迟接入信息时将所述可延迟接入信 息发送给所述目标无线网络控制节点,以便所述目标无线网络控制节点在接收 到所述用户设备的可延迟接入信息时,判断所述目标无线网络控制节点是否处 于网络拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消 息给所述用户设备;
连接释放模块,用于根据所述连接释放消息释放与所述目标无线网络控制 节点之间的无线资源控制连接。
在第六方面的第一种可能的实现方式中,所述目标无线网络控制节点的当 前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞, 所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标 无线网络控制节点未处于网络拥塞。
在第六方面的第二种可能的实现方式中,所述可延迟接入信息是载入在切 换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
第七方面,本发明实施例还提供了一种用于用户设备切换的目标无线网络 控制节点, 所述目标无线网络控制节点包括:
第一接收模块,用于接收基于所述用户设备的业务类型信息而得到的可延 迟接入信息;所述业务类型信息是由源网络设备查询并在确定所述业务类型信 息表示 MTC业务时发送给目标网络设备的;
第一判断模块, 用于判断所述目标无线网络节点是否处于网络拥塞; 拒绝切换模块,用于在所述第一判断模块的判断结果为所述目标无线网络 控制节点处于网络拥塞的情况下,拒绝所述用户设备切换至所述目标无线网络 控制节点。
在第七方面的第一种可能的实现方式中, 所述第一判断模块包括: 负载判断子模块, 用于判断当前小区负载水平是否高于负载门限; 拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无线 网络控制节点判断当前小区负载水平高于所述负载门限的情况下,确定所述目 标无线网络控制节点处于网络拥塞;
非拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无 线网络控制节点判断当前小区负载水平低于所述负载门限的情况下,确定所述 目标无线网络控制节点未处于网络拥塞。
在第七方面的第二种可能的实现方式中,所述目标无线网络控制节点通过 重定位请求消息接收所述可延迟接入信息。
在第七方面的第三种可能的实现方式中,所述目标无线网络控制节点通过 增强型重定位请求消息接收所述可延迟接入信息。
第八方面,本发明实施例还提供了另一种用于用户设备切换的目标无线网 络控制节点, 所述目标无线网络控制节点包括:
第二接收模块, 用于接收所述用户设备的可延迟接入信息; 其中, 所述可 延迟接入信息是由所述用户设备在完成将无线资源控制连接切换至所述目标 无线网络控制节点时查询并在查询到时发送给所述目标无线网络控制节点的; 第二判断模块, 用于判断所述目标无线网络控制节点是否处于网络拥塞, 如果是则发送连接释放消息给所述用户设备;
释放消息发送模块,用于在所述第二判断模块的判断结果为所述目标无线 网络控制节点处于网络拥塞的情况下,发送连接释放消息给所述用户设备, 以 便所述用户终端根据所述连接释放消息释放与所述目标无线网络控制节点之 间的无线资源控制连接。
在第八方面的第一种可能的实现方式中, 所述第二判断模块包括: 负载判断子模块, 用于判断当前小区负载水平是否高于负载门限; 拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无线 网络控制节点判断当前小区负载水平高于所述负载门限的情况下,确定所述目 标无线网络控制节点处于网络拥塞;
非拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无 线网络控制节点判断当前小区负载水平低于所述负载门限的情况下,确定所述 目标无线网络控制节点未处于网络拥塞。
在第八方面的第二种可能的实现方式中,所述可延迟接入信息是载入在切 换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
第九方面, 本发明实施例还提供了另一种用于用户设备切换的源网络设 备, 所述源网络设备包括:
处理器, 用于查询所述用户设备的业务类型信息;
发送器, 用于在所述业务类型信息表示机器类通信 MTC业务时, 将所述 表示 MTC业务的业务类型信息发送给目标网络设备, 以便所述目标无线网络 控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时,判断所 述目标无线网络控制节点是否处于网络拥塞 ,如果所述目标无线网络控制节点 处于网络拥塞则拒绝所述用户设备切换至所述目标无线网络控制节点。
在第九方面的第一种可能的实现方式中,所述源网络设备为源无线网络控 制节点所在的源核心网服务器, 所述业务类型信息为所述可延迟接入信息, 所 述目标网络设备为目标无线网络控制节点; 所述处理器, 具体用于查询所述用 户设备的设备属性信息, 在所述设备属性信息表示 MTC业务时生成所述用户 设备的可延迟接入信息。
在第九方面的第二种可能的实现方式中,所述源网络设备为源无线网络节 点所在的源核心网服务器, 所述业务类型信息为所述用户设备的设备属性信 息, 所述目标网络设备为所述目标无线网络控制节点所在的目标核心网控制 器;所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息生成 并发送给所述目标无线网络控制节点的信息。
在第九方面的第三种可能的实现方式中,所述源网络设备为源无线网络控 制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设备为所述目标 无线网络控制节点。
在第九方面的第四种可能的实现方式中,结合第九方面的第三种可能的实 现方式,所述可延迟接入信息是载入在重定位需求消息中由所述源无线网络控 制节点发送至源核心网服务器的, 并且, 所述可延迟接入信息是载入在重定位 请求消息中由所述源核心网服务器发送至所述目标无线网络控制节点的, 其 中, 所述源核心网服务器为所述源无线网络控制节点所在的核心网服务器。
在第九方面的第五种可能的实现方式中,结合第五方面的第四种可能的实 现方式,所述可延迟接入信息是载入在重定位请求消息中由所述源核心网服务 器经目标核心网服务器发送至所述目标无线网络控制节点的, 其中, 所述目标 核心网服务器为目标无线网络控制节点所在的核心网服务器。
在第九方面的第六种可能的实现方式中,结合第九方面的第三种可能的实 现方式,所述可延迟接入信息是载入在增强型重定位请求消息中由所述源无线 网络控制节点发送至所述目标无线网络控制节点的。
在第九方面的第七种可能的实现方式中,结合第九方面的第三至六种可能 的实现方式中的任意一种,所述可延迟接入信息封装在所述源无线网络控制节 点至所述目标无线网络控制节点的透明容器中发送。
在第九方面的第八种可能的实现方式中,所述目标无线网络控制节点的当 前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞, 所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标 无线网络控制节点未处于网络拥塞。
第十方面, 本发明实施例还提供了另一种用户设备, 所述用户设备包括: 接收器, 用于接收源无线网络控制节点发送的切换指令消息;
处理器, 用于将无线资源控制连接切换至目标无线网络控制节点, 并在所 述无线资源控制连接完成切换时查询可延迟接入信息, 以及, 用于根据连接释 放消息释放与所述目标无线网络控制节点之间的无线资源控制连接。 发送器,用于在查询到所述可延迟接入信息时将所述可延迟接入信息发送 给所述目标无线网络控制节点,以便所述目标无线网络控制节点在接收到所述 用户设备的可延迟接入信息时,判断所述目标无线网络控制节点是否处于网络 拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消息给所 述用户设备。
在第十方面的第一种可能的实现方式中,所述目标无线网络控制节点的当 前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞, 所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标 无线网络控制节点未处于网络拥塞。
在第十方面的第二种可能的实现方式中,所述可延迟接入信息是载入在切 换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
第十一方面,本发明实施例还提供了又一种用于用户设备切换的目标无线 网络控制节点, 所述目标无线网络控制节点包括:
接收器,用于接收基于所述用户设备的业务类型信息而得到的可延迟接入 信息;所述业务类型信息是由源网络设备查询并在确定所述业务类型信息表示 MTC业务时发送给目标网络设备的;
处理器, 用于判断所述目标无线网络节点是否处于网络拥塞,如果所述目 标无线网络控制节点处于网络拥塞则拒绝所述用户设备切换至所述目标无线 网给控制节点。
在第十一方面的第一种可能的实现方式中, 所述处理器, 具体用于判断当 前小区负载水平是否高于负载门限,如果所述目标无线网络控制节点判断当前 小区负载水平高于所述负载门限则确定所述目标无线网络控制节点处于网络 拥塞,如果所述目标无线网络控制节点判断当前小区负载水平低于所述负载门 限则确定所述目标无线网络控制节点未处于网络拥塞。
在第十一方面的第二种可能的实现方式中,所述目标无线网络控制节点通 过重定位请求消息接收所述可延迟接入信息。
在第十一方面的第三种可能的实现方式中, 其特征在于, 所述目标无线网 络控制节点通过增强型重定位请求消息接收所述可延迟接入信息。 第十二方面,本发明实施例还提供了再一种用于用户设备切换的目标无线 网络控制节点, 所述目标无线网络控制节点包括:
接收器, 用于接收所述用户设备的可延迟接入信息; 其中, 所述可延迟接 入信息是由所述用户设备在完成将无线资源控制连接切换至所述目标无线网 络控制节点时查询并在查询到时发送给所述目标无线网络控制节点的;
处理器, 用于判断所述目标无线网络控制节点是否处于网络拥塞; 发送器,用于在所述目标无线网络控制节点处于网络拥塞时发送连接释放 消息给所述用户设备,以便所述用户设备根据所述连接释放消息释放与所述目 标无线网络控制节点之间的无线资源控制连接。
在第十二方面的第一种可能的实现方式中, 所述处理器, 具体用于判断当 前小区负载水平是否高于负载门限,如果所述目标无线网络控制节点判断当前 小区负载水平高于所述负载门限则确定所述目标无线网络控制节点处于网络 拥塞,如果所述目标无线网络控制节点判断当前小区负载水平低于所述负载门 限则确定所述目标无线网络控制节点未处于网络拥塞。
在第十二方面的第二种可能的实现方式中,所述可延迟接入信息是载入在 切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
本发明实施例的用户设备切换的方法及相关设备,由于采用的是源网络设 备或用户设备在查询到 UE的业务类型信息时将该业务类型信息发送给目标网 络设备,以便目标无线网络控制节点接收基于该业务类型信息而得到的可延迟 接入信息, 而可延迟接入信息是 MTC设备具有而非 MTC设备不具有的信息, 所以, 目标无线网络控制节点在接收到可延迟接入信息时, 可以确定请求切换 的 UE是 MTC设备。 这样, 目标无线网络控制节点在处于拥塞状态时, 就可以 在其他无线网络控制节点切换来的设备中拒绝具有可延迟接入信息的 MTC设 备, 从而实现目标无线网络控制节点在处于拥塞时只接入非 MTC设备, 从而 避免非 MTC设备的 H2H业务在传输上产生时间延迟。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明中记载的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例中用户设备切换的方法实施例 1的流程图;
图 2为本发明实施例中用户设备切换的方法实施例 2的流程图;
图 3为本发明实施例中用户设备切换的方法实施例 3的流程图;
图 4为本发明实施例中用户设备切换的方法实施例 4的流程图;
图 5为本发明实施例中用户设备切换的方法实施例 5的流程图;
图 6为本发明实施例中用户设备切换的方法实施例 6的流程图;
图 7为本发明实施例中用户设备切换的方法实施例 7的流程图;
图 8为本发明实施例中用户设备切换的方法的场景实施例 1的流程图; 图 9为本发明实施例中用户设备切换的方法的场景实施例 2的流程图; 图 10为本发明实施例中用户设备切换的方法的场景实施例 3的流程图; 图 11为本发明实施例中用户设备切换的方法的场景实施例 4的流程图; 图 12为本发明实施例中用户设备切换的方法的场景实施例 5的流程图; 图 13为本发明实施例中用于用户设备切换的源网络设备装置实施例 1的结 构图;
图 14为本发明实施例中源网络设备装置实施例 1中第一查询模块的一实施 方式的结构图;
图 15为本发明实施例中用户设备装置实施例 1的结构图;
图 16为本发明实施例中用于用户设备切换的目标无线网络控制节点装置 实施例 1的结构图;
图 17为本发明实施例中目标无线网络控制节点装置实施例 1中第一判断模 块的一实施方式的结构图;
图 18为本发明实施例中用于用户设备切换的目标无线网络控制节点装置 实施例 2的结构图;
图 19为本发明实施例中目标无线网络控制节点装置实施例 2中第二判断模 块的一实施方式的结构图; 图 20为本发明实施例中用于用户设备切换的源网络设备装置实施例 2的结 构图;
图 21为本发明实施例中用户设备装置实施例 2的结构图;
图 22为本发明实施例中用于用户设备切换的目标无线网络控制节点装置 实施例 3的结构图;
图 23为本发明实施例中用于用户设备切换的目标无线网络控制节点装置 实施例 4的结构图。 具体实施方式
为了使本技术领域的人员更好地理解本方法方案,下面将结合本发明实施 例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所 描述的实施例仅是本发明一部分实施例, 而不是全部的实施例。基于本发明中 的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其 他实施例, 都属于本申请保护的范围。
本发明实施例中的用户设备切换适用于设备跨无线网络控制节点的切换, 例如, 可以是跨 RNC ( Radio Network Controller, 无线网络控制器)切换, 也可以是跨 eNB(Evolved Node B , 演进型基站)切换、 跨 BSC ( Base Station Controler, 基站控制器)切换, 异系统间切换等等, 相应的, 核心网服务器可 以为 MME( Mobility Management Entity,移动管理实体), SGSN( Serving GPRS Support Node, 服务 GPRS支持节点)。
发明人经过长期的研究发现, 当 UE需要从源无线网络控制节点切换到目 标无线网络控制节点时, 发起切换过程的设备并不是 UE, 而是源无线网络控 制节点。切换的具体过程是由源无线网络控制节点向目标无线网络控制节点发 出将 UE切换至目标无线网络控制节点的请求, 然后目标无线网络控制节点向 源无线网络控制节点回复确认该请求或拒绝该请求,然后源无线网络控制节点 在接收到确认的回复时指令 UE与目标无线网络控制节点之间建立 RRC连接。 在上述过程中, 由于 UE需要切换时是保持着与源无线网络控制节点之间的 RRC连接的,所以切换过程中 UE不能直接向目标无线网络控制节点发送请求, 所以 UE切换无线网络控制节点时, 目标无线网络控制节点就不能再通过 UE发 送的请求来识别该 UE是否是 MTC设备, 这样, 也就不能进一步实现无法实现 目标无线网络控制节点在处于网络拥塞时只拒绝 MTC设备的切换而允许非 MTC设备的接入, 从而导致无法实现目标无线控制节点在拥塞时优先接入非 MTC设备。
基于上述研究中的发现, 本发明实施例的主要思想是: 在 UE需要切换时, 如果该 UE是 MTC设备,则利用保存有该 UE的可延迟接入信息或设备属性信息 的网络设备或用户设备, 将该 UE的可延迟接入信息发送给目标无线网络控制 节点, 由于可延迟接入信息表示该请求的业务是可以接受时间延迟的业务, 所 以该信息只有 MTC设备才具有, 而非 MTC设备不具有, 因此, 目标无线网络 控制节点根据该可延迟接入信息可以确定该请求切换的 UE是 MTC设备,这样, 目标无线网络控制节点在处于拥塞状态时, 可以拒绝该 MTC设备的切换, 而 优先接入不包含可延迟接入信息的非 MTC设备。
需要说明的是, 本发明实施例中的所述 MTC设备, 表征的是用户设备的 一种属性信息。在标准规范中, 主要通过设备属性信息和可延迟接入信息来体 现。也就是说, 网络设备根据用户设备上报的可延迟接入信息或者设备属性信 息, 能够识别出, 这是一个 MTC设备。 本发明实施例中, 网络设备对可延迟 接入信息的识别, 是识别网络设备上是否具有该用户设备的可延迟接入信息, 如果具有则将该用户设备识别为一个 MTC设备; 网络设备对设备属性信息的 识别,是识别网络设备上该用户设备的设备属性信息表示何种业务,如果表示 的是 MTC业务, 则将该用户设备识别为一个 MTC设备。
下面结合附图,通过实施例来详细说明本发明用户设备切换的方法、 源网 络设备、 用户设备和目标无线网络控制节点。 参见图 1 , 示出了本发明实施例中用户设备切换的方法实施例 1的流程图。 本实施例用于将用户设备从源无线网络控制节点切换到目标无线网络控制节 点。
S 101、 源网络设备查询所述用户设备的业务类型信息。 在本实施例中, 如果用户设备是 MTC设备, 则源网络设备中保存的业务 类型信息可以是该用户设备的可延迟接入信息(Delay Tolerant Access )或者设 备属性信息(Device properties ), 其中 MTC设备的设备属性信息可用于源网络 设备生成该用户设备的可延迟接入信息。例如, 用户设备原先在接入源无线网 络控制节点时会发送可延迟接入信息给源无线网络控制节点,所以源无线网络 控制节点中保存有可延迟接入信息, 所以, 源网络设备可以是源无线网络控制 节点, 对应的业务类型信息是可延迟接入信息; 又如, 用户设备原先在接入源 无线网络控制节点时会在源无线网络控制节点所在的源网络中保存其设备属 性信息, 所以源网络设备也可以是源核心网络服务器,对应的业务类型信息是 设备属性信息或可延迟接入信息。
当所述源设备为源核心网服务器时, 源核心网服务器中存储 MTC设备的 设备属性信息的实现过程可以包括: MTC设备在向源核心网服务器发送 NAS ( Non- Access Stratum, 非接入层) 消息时, 可以在 NAS消息中携带设备属性 信息, 然后, 源核心网服务器存储该设备属性信息。 为了实现切换过程的 MTC 设备控制, 源核心网服务器查询并发送的业务类型信息可以是可延迟接入信 息,或者可以是设备属性信息。其中, 业务类型信息为可延迟接入信息时, 101 可以包括: 当发起切换时, 源核心网服务器, 查询所述用户设备的设备属性信 息, 并在所述设备属性信息表示 MTC业务时生成所述用户设备的可延迟接入 信息。 另外, 业务类型信息为设备属性信息时, 101中查询到的设备属性信息 可以在 102中发送给目标核心网服务服务器, 以便目标核心网服务器根据该设 备属性信息生成可延迟接入信息并发送给目标无线网络控制节点。
当所述源网络设备为源无线网络控制节点时, 源无线网络控制节点存储
MTC设备的可延迟接入信息的实现过程可以包括: MTC设备在接入源无线网 络控制节点时,将可延迟接入信息在无线资源连接建立请求消息中发送给源无 线网络控制节点源无线网络存储该可延迟接入信息保存。 当发起切换时, 源无 线网络控制节点可以直接查询到已保存的该用户设备的可延迟接入信息。
需要说明的是, 在实际中, 需要切换的用户设备并不一定是 MTC设备, 如果发起切换时所要切换的用户设备不是 MTC设备, 则源网络设备是查询不 到该用户设备的表示 MTC业务的业务类型信息的, 所以对于非 MTC设备的用 户设备, 也就不会执行本实施例中的流程。
另外, 本实施例中的无线网络控制节点, 可以是无线网络控制器 RNC, 也 可以是演进型基站 eNB或基站控制器 BSC等网络设备; 核心网服务器可以是移 动管理实体 MME或服务 GPRS支持节点 SGSN等。
S102、 所述源网络设备在确定所述业务类型信息表示机器类通信 MTC业 务时, 将所述表示 MTC业务的业务类型信息发送给目标网络设备, 以便所述 目标无线网络控制节点在接收到基于所述业务类型信息而得到的可延迟接入 信息时, 判断所述目标无线网络控制节点是否处于处于网络拥塞,如果所述目 标无线网络控制节点处于网络拥塞则拒绝所述用户设备切换至所述目标无线 网给控制节点。
目标无线网络控制节点在接收到可延迟信息时,可以确定切换来的用户设 备是 MTC设备, 其业务对时延不敏感。 然后, 目标无线网络控制节点判断当 前时刻自己是否处于网络拥塞。其中, 该判断的依据可以是目标无线网络控制 节点当前的负载水平, 具体地, 所述目标无线网络控制节点的当前小区负载水 平高于负载门限表示所述目标无线网络控制节点处于网络拥塞,所述目标无线 网络控制节点的当前小区负载水平低于负载门限表示所述目标无线网络控制 节点未处于网络拥塞。该负载水平可以是目标无线网络控制节点当前接入的设 备数量, 和 /或, 也可以是其无线资源使用状况, 比如设备功率。
当目标无线网络控制节点处于拥塞状态时,用户设备的切换将被目标无线 网络控制节点拒绝, 用户设备将不能与目标无线网络控制节点建立 RRC连接。 具体地,拒绝所述用户设备切换至所述目标无线网络控制节点的过程, 一种可 能的实现方式, 包括: 目标无线网络控制节点发送重定位失败消息(Relocation Failure )给源核心网服务器, 源核心网服务器根据该重定位失败消息向源无线 网络控制节点发送重定位准备失败消息( Relocation Preparation Failure ), 源无 线网络控制节点在接收到重定位准备失败消息时则终止对用户设备的切换操 作指令消息, 这样用户设备就不会与目标无线网络控制节点建立 RRC连接; 另 一种可能的实现方式, 包括: 目标无线网络控制节点直接发送增强型重定位失 败消息 ( Enhanced Relocation Failure )给源无线网络控制节点, 源无线网络控 制节点在接收到增强型重定位失败消息时则终止对用户设备的切换操作,这样 用户设备就不会与目标无线网络控制节点建立 RRC连接。
当目标无线网络控制节点未处于拥塞状态时,用户设备的切换可以被目标 无线网络控制节点允许,此时用户设备可以与目标无线网络控制节点建立 RRC 连接。 具体地, 允许所述用户设备切换至所述目标无线网络控制节点的过程, 一种可能的实现方式, 包括: 目标无线网络控制节点发送重定位请求确认消息 ( Relocation Request Acknowledge )给源核心网服务器, 源核心网服务器根据 该重定位请求确认消息向源无线网络控制节点发送重定位指令消息 ( Relocation Command ), 源无线网络控制节点在接收到重定位指令消息时则 向用户设备发送切换指令消息( Handover Command ), 这样用户设备就会与目 标无线网络控制节点建立 RRC连接; 另一种可能的实现方式, 包括: 目标无线 网络控制节点直接发送增强型重定位响应消息( Enhanced Relocation Response ) 给源无线网络控制节点,源无线网络控制节点在接收到增强型切换失败消息时 则向用户设备发送切换指令消息,这样用户设备就会与目标无线网络控制节点 建立 RRC连接。
需要说明的是,由于源网络设备可以是源无线网络控制节点或源核心网服 务器, 发送的业务类型信息可以是可延迟接入信息或设备属性信息, 而在 102 中都要实现目标无线网络控制节点接收到 MTC设备的可延迟接入信息。 由于 不同的源网络设备采用不同的业务类型信息与目标无线网络控制节点之间的 通信机制是不同的, 所以 102中实现可延迟接入信息发送至目标无线网络控制 节点时可以采用多种不同的过程。
当源网络设备为源核心网服务器且业务类型信息为可延迟接入信息时,源 核心网服务器可以将可延迟接入信息载入重定位请求消息 ( Relocation Request )发送给目标无线网络控制节点。 其中, 重定位请求信息在源核心网 当源网络设备为源核心网服务器时且业务类型信息为设备属性信息时,源 核心网服务器可以将设备属性信息发送给目标核心网服务器,目标核心网服务 器可以在所述设备属性信息表示 MTC业务时根据该设备属性信息生成可延迟 接入信息并载入重定位请求消息发送给目标无线网络控制节点。其中, 源核心 网服务器发送设备属性信息给目标核心网服务器可以是在触发切换时发送,或 者也可以是在触发切换之后的某个时刻发送。
当源网络设备为源无线网络控制节点时, 业务类型信息为可延迟接入信 息, 目标网络设备则可以为目标无线网络控制节点。 其中, 所述可延迟接入信 息的一种可能的发送方式可以是先载入在重定位需求消息 ( Relocation Required ) 中由源无线网络控制节点发送至源核心网服务器, 再载入在重定位 请求消息中由源核心网服务器发送至目标无线网络控制节点, 其中, 所述源核 心网服务器为所述源无线网络控制节点所在的核心网服务器;在源核心网服务 器与目标核心网服务器是不同的核心网服务器时,所述可延迟接入信息是载入 在重定位请求消息中由所述源核心网服务器可以经目标核心网服务器发送至 所述目标无线网络控制节点的, 其中, 所述目标核心网服务器为目标无线网络 控制节点所在的核心网服务器;在源核心网服务器与目标核心网服务器是同一 个核心网服务器时,所述可延迟接入信息在由所述源核心网服务器发送至所述 目标无线网络控制节点时可以是直接发送的。此外,在源网络设备为源无线网 络控制节点时所述可延迟接入信息的另一种可能的发送方式可以是所述源无 线网络控制节点将所述可延迟接入信息载入在增强型重定位请求消息 ( Enhanced Relocation Request ) 中发送给所述目标无线网络控制节点。
另外,在源无线网络控制节点发送可延迟接入信息给目标无线网络控制节 点时, 为了减少信息传输的时间, 可以将可延迟接入信息封装在源无线网络控 制节点至目标无线网络控制节点的透明容器(Transparent Container )中。 透明 容器可以使其中的信息只在目标设备中进行解析,而使其他中转设备不解析该 信息。
可以理解的是, S102执行完成之后,如果目标无线网络控制节点处于拥塞 状态, 则用户设备没有与目标无线网络控制节点之间建立 RRC连接, 这样就没 有完成用户设备的无线网络控制节点切换。 所以, 在 S102之后, 还可以再次触 发 S101继续向该目标无线网络控制节点请求切换该用户设备,以便该目标无线 网络控制节点在不处于拥塞状态时将该用户设备接入; 或者,还可以再次触发 S101向其他符合切换需求的目标无线网络控制节点请求切换该用户设备,以便 其他不处于拥塞状态的目标无线网络控制节点将该用户设备接入。
采用本实施例的技术方案,在源无线网络控制节点发起切换时, 源网络设 备将表示 MTC业务的用户设备的业务类型信息发送给目标网络设备, 以便目 标无线网络控制节点接收基于业务类型信息而得到的可延迟接入信息,由于可 延迟接入信息是 MTC设备具有而非 MTC设备不具有的信息, 目标无线网络控 制节点就可以在接收到可延迟接入信息时可以识别出该用户设备是 MTC设 备, 这样, 目标无线控制节点就可以在处于拥塞状态时候拒绝该 MTC设备的 接入,从而实现目标无线网络控制节点在处于拥塞时拒绝接入自其他无线网络 控制节点切换来的 MTC设备, 从而实现在处于拥塞时优先接入非 MTC设备, 从而避免非 MTC设备的 H2H业务在传输上产生时间延迟。 下面, 将通过不同的实施例分别说明前述方法实施例 1中源网络设备为源 核心网服务器以及源网络设备为源无线网络控制节点时的具体实现方式。在以 下实施例中,源核心网服务器是指所述源无线网络控制节点所在的核心网服务 器, 目标核心网服务器是指目标无线网络控制节点所在的核心网服务器, 以下 不再赘述。
参见图 2, 示出了本发明实施例中用户设备切换的方法实施例 2的流程图。 本实施例是在前述方法实施例 1中源网络设备为源核心网服务器时的一种具体 实施方式, 其中, 所述核心网服务器为源核心网服务器和 /或目标核心网服务 器。
S201、核心网服务器接收所述源无线网络控制节点发送的所述用户设备的 重定位需求消息。
在用户设备需要从源无线网络控制节点切换至目标无线网络控制节点时, 源无线网络控制节点向核心网服务器发送重定位需求消息。
5202、 所述核心网服务器查询所述用户设备的设备属性信息。
5203、 所述核心网服务器在查询到所述设备属性信息表示 MTC业务时, 生成所述用户设备的可延迟接入信息,并将所述可延迟接入信息通过重定位请 求消息发送给所述目标无线网络控制节点,以便所述目标无线网络控制节点在 接收到所述可延迟接入信息时,判断所述目标目标无线网络控制节点是否处于 网络拥塞, 如果否, 则向所述核心网服务器发送重定位请求确认消息并进入 S204, 如果是, 则向所述核心网服务器发送重定位失败消息并进入 S206。
在本实施例中, 根据 MTC业务的设备属性信息生成可延迟接入信息的核 心网服务器可以是源核心网服务器, 或者也可以是目标核心网服务器。
在源核心网服务器生成可延迟接入信息的实施方式中,该可延迟接入信息 为源核心网服务器发送的业务类型信息。其中, S202中可延迟接入信息的查询 可以宝包括: 所述源核心网服务器查询所述用户设备的设备属性信息, 并在所 述设备属性信息表示 MTC业务时生成所述用户设备的可延迟接入信息。 另夕卜, 可延迟接入信息可以是源核心网服务器通过重定位请求消息经由目标核心网 服务器发送给目标无线网络控制节点。
在目标核心网服务器生成可延迟接入信息的实施方式中,设备属性信息为 源核心网服务器发送的业务类型信息,目标核心网服务器需要先接收源核心网 服务器发送的该用户设备的设备属性信息,然后才能根据该设备属性信息生成 可延迟接入信息。其中, 本实施例提供了两种可能的目标核心网服务器接收设 备属性信息的实施方式。一种可能的实施方式为: 在源核心网服务器接收重定 位需求消息之后, 源核心网服务器查询用户设备的设备属性信息, 并将查询到 的设备属性信息发送给目标核心网服务器,当目标核心网服务器查询到该设备 属性信息表示 MTC业务时, 生成可延迟接入信息并发送给目标无线网络控制 节点; 其中, 当 UE需要切换时, 无论该 UE是否属于 MTC设备, 源核心网服务 器可以都将其设备属性信息发送给目标核心网服务器,而由目标核心网服务器 根据设备属性信息所表示的业务类型来决定是否生成可延迟接入信息。另一种 可能的实施方式为: 源核心网服务器在接收重定位需求消息之前的某一时刻 (比如源核心网服务器在接收到用户设备的设备属性信息的时候 ), 查询用户 设备的设备属性信息, 并将查询到的设备属性信息发送给目标核心网服务器, 当源核心网服务器在接收到重定位需求消息时, 可以转发给目标核心网服务 器, 这时, 目标核心网服务器再查询该用户设备的设备属性信息, 并在查询到 设备属性信息表示 MTC业务时, 生成可延迟接入信息并发送给目标无线网络 控制节点; 其中, 源核心网服务器在 UE切换之前就将设备属性信息发送给目 标核心网服务器, 而在 UE切换时源核心网服务器就不需要源核心网服务器再 去查询设备属性信息, 而是由目标核心网服务器来查询。
需要说明的是, 在目标核心网服务器生成可延迟接入信息的实施方式中, 前述 S202~S203虽然是由目标核心网服务器来完成的, 但是, 在 S202之前, 源 核心网服务器查询该用户设备的设备属性信息, 并在设备属性信息表示 MTC 业务时将该设备属性信息发送给目标核心网服务器。 另外, 对于表示非 MTC 业务的设备属性信息,在本实施方式中也可以由源核心网服务器发送给目标核 心网服务器, 然后再由目标核心网服务器查询设备属性信息表示的业务。
5204、所述核心网服务器接收所述重定位请求确认消息并生成重定位指令 消息。
其中,重定位指令消息用于控制源无线网络控制节点向用户设备发送切换 指令消息, 以完成用户设备切换到目标无线网络控制节点。
5205、所述核心网服务器将所述重定位指令消息发送给所述源无线网络控 制节点,以便所述源无线网络控制节点控制所述用户设备与所述目标无线网络 控制节点的小区建立 RRC连接。
其中,源无线网络控制节点控制用户设备建立 RRC连接可以通过向用户设 备发送前述切换指令实现。
5206、所述核心网服务器接收所述重定位失败消息并生成重定位准备失败 消息。
其中,重定位准备失败消息用于核心网服务器控制源无线网络控制节点不 向用户设备发送切换指令, 以便用户设备不执行切换,从而不与目标无线网络 控制节点之间建立 RRC连接。
5207、所述核心网服务器将所述重定位准备失败消息发送给所述源无线网 络控制节点,以便所述源无线网络控制节点控制所述用户设备不与所述目标无 线网络控制节点的小区之间建立 RRC连接。 需要说明的是,本实施例中的核心网服务器可以是源核心网服务器或目标 核心网服务器, 则在上述中, 如果目标核心网服务器和源核心网服务器不同, 源核心网服务器与目标无线网络控制节点之间的信息交互需要经过目标核心 网服务器中转,目标核心网服务器与源无线网络控制节点之间的信息交互需要 经过目标核心网服务器中转。 另外, 由于各个核心网服务器之间信息是可以直 接交互的,本实施例中的核心网服务器也可以是包括源核心网服务器和目标核 心网服务器, 则在上述中, 与源无线网络控制节点进行信息交互的是源核心网 服务器, 与目标无线网络控制节点进行信息交互的是目标核心网服务器。
采用本实施例的技术方案,源核心网服务器将用户设备的可延迟接入信息 或设备属性信息发送给目标核心网服务器,再由目标核心网服务器将接收的可 延迟接入信息或根据接收的设备属性信息生成的可延迟接入信息并发送给目 标无线网络控制节点, 从而使得目标无线网络控制节点可以识别切换来的 MTC设备, 从而使得目标无线网络控制节点在拥塞时拒绝 MTC设备切换的请 求,从而实现目标无线网络控制节点在拥塞时优先接入非 MTC设备,避免 H2H 业务的数据传输产生时间延迟。 参见图 3 , 示出了本发明实施例中用户设备切换的方法实施例 3的流程图。 本实施例是在前述方法实施例 1中源网络设备为源无线网络控制节点时的一种 具体实施方式, 其中, 源无线网络控制节点与目标无线网络控制节点之间的交 互通过核心网服务器中转进行。
5301、 所述源无线网络控制节点查询所述用户设备的可延迟接入信息。
5302、所述源无线网络控制节点在查询到所述可延迟接入信息时,将所述 可延迟接入信息通过重定位需求信息发送给核心网服务器,以便所述核心网服 务器将所述可延迟接入信息通过重定位请求信息发送给所述目标无线网络控 制节点, 所述目标无线网络控制节点在接收到所述可延迟接入信息时, 判断所 述目标目标无线网络控制节点是否处于网络拥塞,如果否, 则向所述核心网服 务器发送重定位请求确认消息并进入 S303 ,如果是, 则向所述核心网服务器发 送重定位失败消息并进入 S305。 需要说明的是,本实施例中的核心网服务器包括源核心网服务器和目标核 心网服务器, 如果源核心网服务器和目标核心网服务器是不同的核心网服务 器, 则与源无线网络控制节点进行信息交互的是源核心网服务器, 与目标无线 网络控制节点进行信息交互的是目标核心网服务器。由于可延迟接入信息的最 终接收目标是目标无线网络控制节点,也只有目标无线网络控制节点才需要应 用该可延迟接入信息, 进而识别切换的 MTC设备, 所以, 可以将可延迟接入 信息封装到在源无线网络控制节点至目标无线网络控制节点的透明容器中发 送。 由于透明容器中的信息只在透明容器的最终接收目标设备处解析, 其他中 途经过的设备都不会解析,这样可以避免核心网服务器等中转设备对可延迟接 入信息的解析, 从而节省了可延迟接入信息发送过程中的流程和时间。
303、 所述源无线网络控制节点接收所述核心网服务器发送的重定位指令 消息,所述重定位指令消息是由所述核心网服务器根据所述目标无线网络控制 节点发送的重定位请求确认消息而生成的。
其中, 源在接收重定位指令消息之后, 生成切换指令消息。
304、 所述源无线网络控制节点控制所述用户设备与所述目标无线网络控 制节点之间建立 RRC连接。
其中, 源无线网络控制节点将切换指令消息发送给用户设备, 以使用户设 备建立与目标 RNC小区的 RRC连接。
305、 所述源无线网络控制节点接收所述核心网服务器发送的重定位准备 失败消息,所述重定位准备失败消息是由所述核心网服务器根据所述目标无线 网络控制节点发送的重定位失败消息而生成的。
其中, 源无线网络控制节点在接收重定位准备消息之后, 不生成切换指令 消息,从而实现控制用户设备当前不建立与目标无线网络控制节点之间的 RRC 连接。
306、 所述源无线网络控制节点控制所述用户设备不与所述目标无线网络 控制节点之间建立 RRC连接。
采用本实施例的技术方案,可延迟接入信息可以预先保存在源无线网络控 制节点中,在需要切换时, 由源无线网络控制节点将可延迟接入信息经核心网 服务器发送给目标无线网络控制节点,从而目标无线网络控制节点可以识别切 换来的 MTC设备, 从而在拥塞时拒绝 MTC设备切换的请求, 从而实现目标无 线网络控制节点在拥塞时优先接入非 MTC设备,避免 H2H业务的数据传输产生 时间延迟。 参见图 4, 示出了本发明实施例中用户设备切换的方法实施例 4的流程图。 本实施例是在前述方法实施例 1中源网络设备为源无线网络控制节点时的又一 种具体实施方式, 其中, 源无线网络控制节点与目标无线网络控制节点之间的 交互通过增强型消息直接进行。
S401、 所述源无线网络控制节点查询所述用户设备的可延迟接入信息。
S402、所述源无线网络控制节点在查询到所述可延迟接入信息时,将所述 可延迟接入信息通过增强型重定位请求消息发送给所述目标无线网络控制节 点, 以便所述目标无线网络控制节点在接收到所述可延迟接入信息时, 所述目 标无线网络控制节点在接收到所述可延迟接入信息时,判断所述目标目标无线 网络控制节点是否处于网络拥塞,如果否, 则向所述核心网服务器发送重定位 请求确认消息并进入 S403,如果是,则向所述核心网服务器发送重定位失败消 息并进入 S404。
需要说明的是,增强型重定位请求消息可以在由源无线网络控制节点直接 发送给目标无线网络控制节点发送,而不再需要经由核心网服务器对该消息进 行解析提取信息再重新生成新的消息发送, 因此可以节省信息传输的时间。
另外,本实施例中的可延迟接入信息也可以嵌入源无线网络控制节点至目 标无线网络控制节点的透明容器中发送, 从而进一步节省信息传输的时间。
S403、所述源无线网络控制节点接收所述目标无线网络控制节点直接发送 的增强型重定位响应消息,并控制所述用户设备与所述目标无线网络控制节点 的小区建立 RRC连接。
其中,源无线网络控制节点可以通过向用户设备发送切换指令消息来实现 控制 MTC设备建立与目标无线网络控制节点之间的 RRC连接。
S404、所述源无线网络控制节点接收所述目标无线网络控制节点发送的增 强型重定位失败消息,并控制所述用户设备不与所述目标无线网络控制节点之 间建立 RRC连接。
其中,源无线网络控制节点可以通过不向用户设备发送切换指令消息来实 现控制用户设备不建立与目标无线网络控制节点之间的 RRC连接。
采用本实施例的技术方案,可延迟接入信息可以预先保存在源无线网络控 制节点中,在需要切换时, 由源无线网络控制节点将可延迟接入信息直接通过 增强型信号发送给目标无线网络控制节点,从而不仅能够实现目标无线网络控 制节点在拥塞时优先接入非 MTC设备而避免 H2H业务的数据传输产生时间延 迟, 还可以节省信息传输的时间, 并节省核心网服务器的网络资源。 前述实施例是采用在目标无线网络控制节点接收切换请求时目标无线网 络控制节点执行拥塞控制并在拥塞时拒绝用户设备切换的请求的方式来实现。 在本发明中,还可以提供了一种目标无线网络控制节点实现拥塞控制的实现方 式, 即是采用目标无线网络控制节点先接纳切换来的 MTC设备, 在与 MTC设 备之间建立 RRC连接之后再执行拥塞控制并在拥塞时控制 MTC设备释放 RRC 连接的方法来实现。
参见图 5, 示出了本发明实施例中用户设备切换的方法实施例 5的流程图。 本实施例用于将用户设备从源无线网络控制节点切换到目标无线网络控制节 点, 其中, 可延迟接入信息保存在所述用户设备中。
S501、 所述用户设备接收所述源无线网络控制节点发送的切换指令消息, 将无线资源控制连接切换至所述目标无线网络控制节点。
其中,所述切换指令消息为所述源无线网络控制节点在所述目标无线网络 控制节点确认接纳所述用户设备的切换请求之后而生成的。
由于本实施例是采用用户设备自己将可延迟接入信息发送给目标目标无 线网络控制节点,所以在发送可延迟接入数据之前需要用户设备与目标无线网 络控制节点之间建立 RRC连接。 因此, 在本实施例中, 源无线网络控制节点需 要先向目标无线网络控制节点发送该用户设备的切换请求,然后目标无线网络 控制节点确认该请求, 随后源无线网络控制节点再生成切换指令消息, 下发给 该用户设备。
S502、所述用户设备在所述无线资源控制连接完成切换时,查询可延迟接 入信息,并在查询到所述可延迟接入信息时将所述可延迟接入信息发送给所述 目标无线网络控制节点,以便所述目标无线网络控制节点根据所述可延迟接入 信息, 判断所述目标无线网络控制节点是否处于网络拥塞,如果所述目标无线 网络控制节点处于网络拥塞则发送连接释放消息给所述用户设备并进入 S503。
其中, 由于在所述无线资源控制连接(RRC连接)完成切换时用户设备接 下来需要向目标无线网络控制节点发送切换完成消息,以通知目标无线网络控 制节点该用户设备已经接入, 所以, 上述的可延迟信息可以载入在该切换完成 消息中发送由所述用户设备发送至所述目标无线网络控制节点。 另外, 用户设 备是在用户设备自身中查询可延迟接入信息, 如果用户设备属于 MTC业务, 则该用户设备上能够查询到可延迟接入信息, 如果用户设备不属于 MTC业务, 则该用户设备上是查询不到可延迟接入信息的。
可以理解的是,一般地,目标无线网络控制节点在不处于拥塞状态的时候, 可以直接利用已建立的 RRC连接与所述用户设备进行通信,而不需要再回复同 意接入的确认消息。
需要说明的是,判断目标无线网络控制节点网络拥塞的依据可以是目标无 线网络控制节点当前的负载水平, 具体地, 所述目标无线网络控制节点的当前 小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络拥塞,所 述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述目标无 线网络控制节点未处于网络拥塞。
S503、所述用户设备根据所述连接释放消息释放与所述目标无线网络控制 节点之间的无线资源控制连接。
所述用户设备在接收到连接释放消息 (RRC Connection Release ) 时, 是 将自己与目标无线网络控制节点之间的 RRC连接释放,从而释放目标无线网络 控制节点的一个可用 RRC连接的资源。
本实施例与前述方法实施例的区别在于,本实施例是首先由源无线网络控 制节点与目标无线网络控制节点之间确认切换用户设备,并将用户设备切换到 目标无线网络控制节点,之后再由用户设备将可延迟接入信息发送给目标无线 网络控制节点,从而使目标无线网络控制节点在处于拥塞状态的时候再控制用 户设备将已经建立的 RRC连接释放,从而实现在目标无线网络控制节点拥塞时 不接入切换来的 MTC设备。 前述的方法实施例, 是以可延迟接入信息的发送设备的角度进行的说明。 为了使本领域技术更全面地理解本发明的技术方案,下面将对应前述的方法实 施例,以目标无线网络控制节点这一可延迟接入信息的接收设备的角度进行说 明。
参见图 6, 示出了本发明实施例中用户设备切换的方法实施例 6的流程图。 本实施例用于将用户设备从源无线网络控制节点切换到目标无线网络控制节 点, 其中, 用户设备的业务类型信息由源网络设备在切换请求时发送给目标无 线网络控制节点中。
S601、所述目标无线网络控制节点接收基于所述用户设备的业务类型信息 而得到的可延迟接入信息;所述业务类型信息是由源网络设备查询并在确定所 述业务类型信息表示 MTC业务时发送给目标网络设备的。
其中, 源网络设备为源无线网络控制节点或源核心网服务器, 业务类型信 息为设备属性信息或可延迟接入信息。 当业务类型信息为可延迟接入信息时, 目标网络设备可以是目标无线网络控制节点;当业务类型信息为设备属性信息 时, 目标网络设备可以是目标核心网服务器, 可延迟接入信息则是目标核心网 服务器根据设备属性信息生成并发送给目标无线网络控制节点的。
另夕卜, 所述目标无线网络控制节点在接收可延迟接入信息时, 可以通过目 标核心网服务器发送的重定位请求消息接收,或者也可以通过源无线网络控制 节点发送的增强型重定位请求消息接收。
S602、所述目标无线网络控制节点判断所述目标无线网络节点是否处于网 络拥塞, 如果所述目标无线网络节点处于网络拥塞则进入 S603。
其中,目标无线网络控制节点判断的依据可以是目标无线网络控制节点当 前时刻的负载水平, 则 S602可以具体包括: 所述目标无线网络控制节点判断当 前小区负载水平是否高于负载门限;如果所述目标无线网络控制节点判断当前 小区负载水平高于所述负载门限,则确定所述目标无线网络控制节点处于网络 拥塞;如果所述目标无线网络控制节点判断当前小区负载水平低于所述负载门 限, 则确定所述目标无线网络控制节点未处于网络拥塞。
需要说明的是, 判断负载水平可以通过多种不同的因素来实现, 例如可以 判断所述目标无线网络控制节点当前接入的设备数量和 /或设备功率。 其中, 判断负载水平是可以只判断接入设备的数量或接入设备的功率总和,也可以数 量和功率两者都判断。 另外, 负载水平门限可以是目标无线网络控制节点所能 承受负载水平的设定比例值来设置。 如, 负载最大承受水平的 80%被认为是负 载水平的门限,则对应接入设备数量的阈值可以是目标无线网络控制节点最大 接入设备数量的 80%,对应接入设备功率的阈值可以是目标无线网络控制节点 最大接入设备功率的 80%。
S603、所述目标无线网络控制节点拒绝所述用户设备切换至所述目标无线 网给控制节点。
通过本实施例的技术方案,目标无线网络控制节点可以在接收到基于源网 络设备发送的表示 MTC业务的业务类型信息而生成的可延迟接入信息识别切 换来的 MTC设备, 从而在处于拥塞时拒绝 MTC设备的切换接入请求, 实现优 先接入非 MTC设备接入, 从而保证 H2H业务数据传输不发生延迟。 参见图 7, 示出了本发明实施例中用户设备切换的方法实施例 7的流程图。 本实施例用于将用户设备从源无线网络控制节点切换到目标无线网络控制节 点, 其中, 可延迟接入信息由用户设备在切换完成时发送给目标无线网络控制 节点。
S701、 所述目标无线网络控制节点接收所述用户设备的可延迟接入信息; 其中,所述可延迟接入信息是由所述用户设备在完成将无线资源控制连接切换 至所述目标无线网络控制节点时查询并在查询到时发送给所述目标无线网络 控制节点的。
其中, 可延迟接入信息可以是, 在用户设备在根据切换指令消息而完成与 目标无线网络控制节点之间建立连接之后,载入在切换完成消息中由所述用户 设备发送至所述目标无线网络控制节点的。
需要说明的是,在 S701执行之前, 目标无线网络控制节点需要先确认源无 线网络控制节点对所述用户设备的切换请求,在切换请求被目标无线网络控制 节点确认以后,源无线网络控制节点才会生成切换指令消息并将所述切换指令 消息发送给用户设备。
本实施例中提供了两种可能的目标无线网络控制节点确认切换请求的过 程。
第一种确认过程具体包括:所述目标无线网络控制节点接收所述源无线网 络控制节点经核心网服务器发送的重定位请求消息,所述核心网服务器包括源 无线网络控制器所在的源核心网服务器和目标无线网络控制节点所在的目标 核心网服务器;所述目标无线网络控制节点将重定位请求确认消息发送给核心 网服务器,以便所述核心网服务器将重定位指令消息发送给所述源无线网络控 制节点,以便源无线网络控制节点生成所述切换指令消息并将所述切换指令消 息发送给源设备。
第二中确认过程具体包括:所述目标无线网络控制节点接收由所述源无线 网络控制节点直接发送的增强型重定位请求消息,并将增强型重定位响应消息 直接发送至所述源无线网络控制节点,以便源无线网络控制节点生成切换指令 消息并将所述切换指令消息发送给用户设备。
可以理解的是,在上述确认切换过程中, 目标无线网络控制节点不能识别 切换来的 MTC设备, 只要目标无线网络控制节点还可以接入用户设备, 目标 无线网络控制节点就可以直接确认切换的请求,以便用户设备接入目标无线网 络控制节点。 而目标无线网络控制节点对于 MTC设备的切换控制, 是在切换 完成以后接收到可延迟接入信息时进行的。
S702、所述目标无线网络控制节点判断所述目标无线网络控制节点是否处 于网络拥塞, 如果所述目标无线网络控制节点处于网络拥塞则进入 S703。
其中, 判断的过程可以包括: 所述目标无线网络控制节点判断当前小区负 载水平是否高于负载门限;如果所述目标无线网络控制节点判断当前小区负载 水平高于所述负载门限, 则确定所述目标无线网络控制节点处于网络拥塞; 如 果所述目标无线网络控制节点判断当前小区负载水平低于所述负载门限,则确 定所述目标无线网络控制节点未处于网络拥塞。
S703、所述目标无线网络控制节点发送连接释放消息给所述用户终端, 以 便所述用户终端根据所述连接释放消息释放与所述目标无线网络控制节点之 间的无线资源控制连接。
通过本实施例的技术方案, 在用户设备切换到目标无线网络控制节点之 后,目标无线网络控制节点可以在切换完成消息中接收由用户设备发送来的可 延迟接入信息, 并以此识别切换来的 MTC设备, 从而在处于拥塞时拒绝 MTC 设备的切换接入请求, 实现优先接入非 MTC设备,从而保证 H2H业务数据传输 不发生延迟。 前述的方法实施例,是以同一个设备的角度进行的说明。 为了使本领域技 术人员更全面地理解本发明的技术方案, 下面将对应前述的方法实施例, 结合 具体的场景, 以信号传输的角度进行说明。 在以下的场景实施例中, 用户设备 为 MTC设备, 源无线控制网络控制节点与目标无线网络控制节点都为无线网 络控制器 RNC, 核心网服务器为服务 GPRS支持节点 SGSN。
参见图 8 ,示出了本发明实施例中用户设备切换的方法的场景实施例 1的流 程图。 本实施例中, 源网络设备为源 RNC, 业务类型信息为可延迟接入信息, 源 RNC与目标 RNC之间交互的信息需要通过 SGSN进行。
5801、 源 RNC将重定位需求消息发送至 SGSN, 所述重定位需求消息中包 含 MTC设备的可延迟接入信息。
源 RNC查询预先保存在自己内部的可延迟接入信息,将该信息嵌入重定位 需求消息。优选的,可以将可延迟接入信息封装在源 RNC至目标 RNC的透明容 器中, 然后再嵌入重定位需求消息。
5802、 SGSN发送重定位请求消息至目标 RNC。
发送重定位请求消息之前, SGSN从接收的重定位需求消息中提取可延迟 接入信息,再将可延迟接入信息嵌入重定位请求消息。如可延迟接入信息封装 在透明容器中, 则不解析该信息, 将透明容器提取出来嵌入重定位请求消息。
5803、 目标 RNC判断负载水平是否高于负载门限值, 如果是, 进入 S804, 如果否, 进入 S806。
判断的过程具体可以是目标 RNC当前时刻接入设备的数量和 /或功率是否 达到预设的负载状态阈值。
5804、 目标 RNC将重定位请求确认消息发送至 SGSN。
SGSN接收到重定位请求确认消息, 则生成重定位指令消息。
5805、 SGSN将重定位指令消息发送至源 RNC。
源 RNC接收到重定位指令消息之后, 生成切换指令消息下发给 MTC设备, 以便 MTC设备建立与目标 RNC之间的 RRC连接。
5806、 目标 RNC将重定位失败消息发送至 SGSN。
SGSN接收到重定位失败消息, 则生成重定位准备失败消息。
5807、 目标 RNC将重定位准备失败消息发送至源 RNC。
源 RNC接收到重定位指令消息之后, 则不向 MTC设备下发切换至目标 RNC的指令消息。
在 S807之后, 源 RNC可以等待一定的时间之后再返回 S801向同一个目标 RNC再次请求切换 MTC设备, 或者, 也可以直接返回 S801向其他符合切换要 求的目标 RNC请求切换 MTC设备。
通过本实施例的技术方案, 可以实现目标 RNC在拥塞时优先接入非 MTC 设备, 从而保证 H2H业务的数据传输不产生时间延迟。
参见图 9,示出了本发明实施例中用户设备切换的方法的场景实施例 2的流 程图。 本实施例中, 源网络设备为源 RNC, 业务类型信息为可延迟接入信息, 源 RNC与目标 RNC之间交互的信息通过增强型消息直接传输。
S901、 源 RNC将增强型重定位请求消息发送至目标 RNC, 所述增强型重 定位请求消息中包含有 MTC设备的可延迟接入信息。
增强型重定位请求消息, 是源 RNC通过增强型消息发送的重定位请求消 息。 其中, MTC设备的可延迟接入消息嵌入在增强型重定位请求消息中。 优 选的,可以将可延迟接入信息封装在源 RNC至目标 RNC的透明容器中,然后再 嵌入增强重定位请求消息。
S902、 目标 RNC判断负载水平是否高于负载门限值, 如果是, 进入 S903 , 如果否, 进入 S904。
判断的过程可以与 S803中判断的过程相同。
S903、 目标 RNC将增强型重定位响应消息发送至源 RNC。
增强型重定位响应消息,是目标 RNC通过增强型消息发送的重定位请求确 认消息。 源 RNC在接收到增强型重定位响应消息之后,生成切换指令消息下发 给 MTC设备, 以便 MTC设备建立与目标 RNC之间的 RRC连接。
S904、 目标 RNC将增强型重定位失败消息发送至源 RNC。
增强型重定位失败消息,是目标 RNC通过增强型消息发送的重定位失败消 息。 源 RNC在接收到增强型重定位失败消息之后, 则不向 MTC设备下发切换 至目标 RNC的指令消息。
在 S904之后, 源 RNC可以等待一定的时间之后再返回 S901向同一个目标 RNC再次请求切换 MTC设备, 或者, 也可以直接返回 S901向其他符合切换要 求的目标 RNC请求切换 MTC设备。
通过本实施例的技术方案, 可以实现目标 RNC在拥塞时优先接入非 MTC 设备而保证 H2H业务的数据传输不产生时间延迟, 而且, 本实施例与场景实施 例 1的区别在于, 源 RNC与目标 RNC之间交互消息采用增强型消息直接传输, 而不再由 SGSN作为中间设备对消息中的信息做提取和嵌入另一个消息中转 发, 这样, 可以减少信息交互过程的流程, 从而节省传输的时间。
参见图 10 , 示出了本发明实施例中用户设备切换的方法的场景实施例 3的 流程图。 本实施例中, 源网络设备为源 SGSN, 业务类型信息为设备属性信息 或可延迟接入信息, 源 RNC与目标 RNC之间交互的信息需要通过 SGSN进行。
51001、 源 RNC将重定位需求消息发送至 SGSN。
其中, 源 RNC在需要切换 MTC设备时发送重定位需求消息, 重定位需求 消息中不包含 MTC设备的可延迟接入信息。
51002、 SGSN将重定位请求消息发送至目标 RNC。
SGSN在接收到重定位请求消息之后, 根据预先保存的该 MTC设备的设备 属性信息生成可延迟接入信息,将可延迟接入信息嵌入重定位请求消息,再将 重定位请求消息发送。
需要说明的是, 生成可延迟接入信息的设备可以是源 SGSN或目标 SGSN。 当生成可延迟接入信息的是源 SGSN时, 业务类型信息为可延迟接入信息, 该 可延迟接入信息是由源 SGSN发送给目标 SGSN, 再由目标 SGSN发送给目标 RNC。 当生成可延迟接入信息的是目标 SGSN时, 业务类型信息为设备属性信 息, 该设备属性信息可以是源 SGSN在接收到重定位请求消息之后发送给目标 SGSN的, 或者可以是源 SGSN在 1002之前的任意时刻发送给目标 SGSN并由目 标 SGSN保存的。
S1003、目标 RNC判断负载水平是否高于负载门限值,如果是,进入 S1004, 如果否, 进入 S1006。
51004、 目标 RNC将重定位请求确认消息发送至 SGSN。
SGSN接收到重定位请求消息, 则生成重定位指令消息。
51005、 SGSN将重定位指令消息发送至源 RNC。
源 RNC接收到重定位指令消息之后, 生成切换指令消息下发给 MTC设备, 以便 MTC设备建立与目标 RNC之间的 RRC连接。
51006、 目标 RNC将重定位失败消息发送至 SGSN。
SGSN接收到重定位失败消息, 则生成重定位准备失败消息。
51007、 目标 RNC将重定位准备失败消息发送至源 RNC。
源 RNC接收到重定位指令消息之后, 则不向 MTC设备下发切换至目标
RNC的指令消息。
在 S1007之后, 源 RNC可以等待一定的时间之后再返回 S1001向同一个目 标 RNC再次请求切换 MTC设备, 或者, 也可以直接返回 S1001向其他符合切换 要求的目标 RNC请求切换 MTC设备。
通过本实施例的技术方案, 可以实现目标 RNC在拥塞时优先接入非 MTC 设备而保证 H2H业务的数据传输不产生时间延迟, 而且, 本实施例与上述场景 实施例 1和 2的区别在于, 可延迟接入信息是由 SGSN根据保存的设备属性信息 生成的,而不再需要源 RNC发送可延迟接入信息,从而减少了源 RNC需要执行 的操作, 从而节省了源 RNC的网络资源。
参见图 11 , 示出了本发明实施例中用户设备切换的方法的场景实施例 4的 流程图。 本实施例中, 可延迟接入信息由 MTC设备发送给目标 RNC, 源 RNC 与目标 RNC之间交互的信息需要通过 SGSN进行。
S1101、 源 RNC将重定位需求消息发送至 SGSN。
51102、 SGSN将重定位请求消息发送至目标 RNC。
51103、 目标 RNC将重定位请求确认消息发送至 SGSN。
51104、 SGSN将重定位指令消息发送至源 RNC。
51105、 源 RNC将切换指令消息发送至 MTC设备。
MTC设备接收到切换指令消息时, 建立与目标 RNC之间的 RRC连接。
51106、 MTC设备将切换完成消息发送至目标 RRC, 所述切换完成消息中 包含 MTC设备查询到的可延迟接入信息。
切换完成消息是在 MTC设备已经与目标 RNC之间建立 RRC连接之后, 通 过已建立的 RRC连接发送。
S1107、 目标 RNC判断负载水平是否高于负载门限值,如果是,进入 S1108: 判断的过程同样可以采用 S804的判断过程。
S1108、 目标 RNC将 RRC连接释放消息发送至 MTC设备。
MTC设备接收到 RRC连接释放消息之后, 释放与目标 RNC之间的 RRC连 接。
在 S1108之后, MTC设备可以等待一定的时间之后向目标 RNC发送接入请 求, 以再次请求接入目标 RNC, 或者, 直接向其他 RNC发送接入请求, 以接入 其他符合要求的 RNC。
本实施例与场景实施例 1、 2和 3的区别在于, 目标 RNC先接入切换来的 MTC设备, 使 MTC设备与目标 RNC之间建立 RRC连接, 然后再由 MTC在切换 完成消息中将可延迟接入信息发送给目标 RNC,以此实现目标 RNC在拥塞时优 先接入非 MTC设备而保证 H2H业务的数据传输不产生时间延迟,这样,就不需 要改变现有源 RNC与目标 RNC之间的切换 UE的实现方式, 使得网络改造中需 要改造的设备数量减少从而减少改造的成本。 参见图 12, 示出了本发明实施例中用户设备切换的方法的场景实施例 5的 流程图。 本实施例中, 可延迟接入信息由 MTC设备发送给目标 RNC, 源 RNC 与目标 RNC之间交互的信息通过增强型消息直接传输。
S1201、 源 RNC将增强型重定位请求消息发送至目标 RNC。
S1202、 目标 RNC将增强型重定位响应消息发送至源 RNC。
51203、 源 RNC将切换指令消息发送至 MTC设备。
MTC设备接收到切换指令消息时, 建立与目标 RNC之间的 RRC连接。
51204、 MTC设备将切换完成消息发送至目标 RNC, 所述切换完成消息中 包含 MTC设备的可延迟接入信息。
切换完成消息是在 MTC设备已经与目标 RNC之间建立 RRC连接之后, 通 过已建立的 RRC连接发送。
51205、目标 RNC判断负载水平是否高于负载门限值,如果是,进入 S1206: 判断的过程同样可以采用 S804的判断过程。
51206、 目标 RNC将 RRC连接释放消息发送至 MTC设备。
MTC设备接收到 RRC连接释放消息之后, 释放与目标 RNC之间的 RRC连 接。
在 S1206之后, MTC设备可以等待一定的时间之后向目标 RNC发送接入请 求, 以再次请求接入目标 RNC, 或者, 直接向其他 RNC发送接入请求, 以接入 其他符合要求的 RNC。
本实施例与场景实施例 4的技术方案, 同样可以在不需要改变现有源 RNC 与目标 RNC之间的切换 UE的实现方式的情况下实现目标 RNC在拥塞时优先接 入非 MTC设备而保证 H2H业务的数据传输不产生时间延迟。而本实施例与场景 实施例 4的区别在于, 源 RNC与目标 RNC之间交互消息采用增强型消息直接传 输, 这样, 可以减少信息交互过程的流程, 从而节省传输的时间。
需要说明的是, 上述场景实施例中, SGSN包括源 SGSN和目标 SGSN。 其 中, SGSN与 RNC交互数据时, 如果源 RNC和目标 RNC位于不同的 SGSN下, 则与源 RNC交互消息的是源 SGSN, 与目标 SGSN交互消息的是目标 SGSN, 而 源 SGSN与目标 RNC之间交互的消息需要通过目标 SGSN转发, 相应的, 目标 SGSN与源 RNC之间交互的消息也需要通过源 SGSN转发。 对应上述的方法实施例,本发明实施例中还提供了一种用于用户设备切换 的源网络设备。参见图 13, 示出了本发明中用于用户设备切换的源网络设备装 置实施例 1的结构图。 本实施例的源网络设备用于将所述用户设备从源无线网 络控制节点切换到目标无线网络控制节点, 所述源网络设备包括: 第一查询模 块 1301 , 用于查询所述用户设备的业务类型信息; 第一发送模块 1302, 用于在 所述业务类型信息表示机器类通信 MTC业务时, 将所述表示 MTC业务的业务 类型信息发送给目标网络设备,以便目标无线网络控制节点在接收到基于所述 业务类型信息而得到的可延迟接入信息时,判断所述目标无线网络控制节点是 否处于处于网络拥塞,如果所述目标无线网络控制节点处于网络拥塞则拒绝所 述用户设备切换至所述目标无线网络控制节点。
可选的,在本实施例的第一种可能的实施方式中, 所述源网络设备为所述 源无线网络控制节点所在的源核心网服务器,所述业务类型信息为所述可延迟 接入信息, 所述目标网络设备为所述目标无线网络控制节点; 其中, 参见图 14 所示, 所述第一查询模块 1301可以包括: 属性查询子模块 1401 , 用于查询所述 用户设备的设备属性信息; 信息生成子模块 1402, 用于在所述设备属性信息表 示 MTC业务时生成所述用户设备的可延迟接入信。
可选的,在本实施例的第二种可能的实施方式中, 所述源网络设备为所述 源无线网络节点所在的源核心网服务器,所述业务类型信息为所述用户设备的 设备属性信息,所述目标网络设备为所述目标无线网络控制节点所在的目标核 心网控制器;所述可延迟接入信息为所述目标核心网服务器根据所述设备属性 信息生成并发送给所述目标无线网络控制节点的信息
可选的,在本实施例的第三种可能的实施方式中, 所述源网络设备为源无 线网络控制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设备为 所述目标无线网络控制节点。
可选的,在本实施例的第四种可能的实施方式中,在上述本实施例的第三 种可能的实施方式的基础上,所述可延迟接入信息为载入在重定位需求消息中 由所述源无线网络控制节点发送至源核心网服务器的, 并且, 所述可延迟接入 信息为载入在重定位请求消息中由所述源核心网服务器发送至所述目标无线 网络控制节点的, 其中, 所述源核心网服务器为所述源无线网络控制节点所在 的核心网服务器。
可选的,在本实施例的第五种可能的实施方式中,在上述本实施例的第四 种可能的实施方式的基础上,所述可延迟接入信息为载入在重定位请求消息中 由所述源核心网服务器经目标核心网服务器发送至所述目标无线网络控制节 点的, 其中, 所述目标核心网服务器为目标无线网络控制节点所在的核心网服 务器。
可选的,在本实施例的第六种可能的实施方式中,在上述本实施例的第三 种可能的实施方式的基础上,所述可延迟接入信息是载入在增强型重定位请求 消息中由所述源无线网络控制节点发送至所述目标无线网络控制节点的。
可选的,在本实施例的第七种可能的实施方式中, 可以在上述第三至六种 可能的实施方式中任意一种的基础上,所述可延迟接入信息封装在源无线网络 控制节点至目标无线网络控制节点的透明容器中发送。
可选的,在本实施例的第八种可能的实施方式中, 所述目标无线网络控制 节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处于 网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表示 所述目标无线网络控制节点未处于网络拥塞。
通过本发明中源网络设备装置实施例,由于在源无线网络控制节点发起切 换时, 源网络设备将用户设备的业务类型信息发送给目标网络设备, 以便目标 无线网络控制节点接收基于业务类型信息得到的可延迟接入信息,可以实现目 标无线网络控制节点在处于拥塞时拒绝接入自其他无线网络控制节点切换来 的 MTC设备, 从而实现在处于拥塞时优先接入非 MTC设备, 从而避免非 MTC 设备的 H2H业务在传输上产生时间延迟。 对应于方法实施例, 本发明实施例还提供了一种用户设备, 用于实现将该 用户设备自身将用户设备从源无线网络控制节点切换到目标无线网络控制节 点。 参见图 15, 示出了本发明实施例中用户设备装置实施例 1的结构图。
本实施例的用户设备可以包括: 切换指令接收模块 1501 , 用于接收源无线 网络控制节点发送的切换指令消息; 切换模块 1502,用于将无线资源控制连接 切换至目标无线网络控制节点; 第二查询模块 1503 ,用于在所述无线资源控制 连接完成切换时, 查询可延迟接入信息; 第二发送模块 1504, 用于在查询到所 述可延迟接入信息时将所述可延迟接入信息发送给所述目标无线网络控制节 点,以便所述目标无线网络控制节点在接收到所述用户设备的可延迟接入信息 时, 判断所述目标无线网络控制节点是否处于网络拥塞,如果所述目标无线网 络控制节点处于网络拥塞则发送连接释放消息给所述用户设备;连接释放模块 1505 ,用于根据所述连接释放消息释放与所述目标无线网络控制节点之间的无 线资源控制连接。
可选的,在本实施例的第一种可能的实施方式中, 所述目标无线网络控制 节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处于 网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表示 所述目标无线网络控制节点未处于网络拥塞。
可选的,在本实施例的第二种可能的实施方式中, 所述可延迟接入信息为 载入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
通过本发明的用户设备装置实施例的技术方案,由于在源无线网络控制节 点将用户设备切换到目标无线网络控制节点之后再由用户设备将可延迟接入 信息发送给目标无线网络控制节点,从而使目标无线网络控制节点在处于拥塞 状态的时候再控制用户设备将已经建立的 RRC连接释放,从而可以实现在目标 无线网络控制节点拥塞时不接入切换来的 MTC设备。 对应于方法实施例,本发明实施例中还提供了一种用于用户设备切换的目 标无线网络控制节点。参见图 16, 示出了本发明实施例中用于用户设备切换的 目标无线网络控制节点装置实施例 1的结构图。
本实施例的目标无线网络控制节点可以用于将用户设备从源无线网络控 制节点切换到所述目标无线网络控制节点,所述目标无线网络控制节点可以包 括: 第一接收模块 1601 , 用于基于所述用户设备的业务类型信息而得到的可延 迟接入信息;所述业务类型信息是由源网络设备查询并在确定所述业务类型信 息表示 MTC业务时发送给目标网络设备的; 第一判断模块 1602, 用于判断所 述目标无线网络节点是否处于网络拥塞; 拒绝切换模块 1603, 用于在所述第一 判断模块 1602的判断结果为所述目标无线网络控制节点处于网络拥塞的情况 下, 拒绝所述用户设备切换至所述目标无线网络控制节点。
可选的, 在本实施例的第一种可能的实施方式中, 参见图 17所示, 所述第 一判断模块 1602可以包括: 负载判断子模块 1701 , 用于判断当前小区负载水平 是否高于负载门限; 拥塞确定子模块 1702, 用于在所述负载判断子模块 1701 的判断结果为所述目标无线网络控制节点判断当前小区负载水平高于所述负 载门限的情况下,确定所述目标无线网络控制节点处于网络拥塞; 非拥塞确定 子模块 1703 ,用于在所述负载判断子模块 1701的判断结果为所述目标无线网络 控制节点判断当前小区负载水平低于所述负载门限的情况下,确定所述目标无 线网络控制节点未处于网络拥塞。
可选的,在本实施例的第二种可能的实施方式中, 所述目标无线网络控制 节点通过重定位请求消息接收所述可延迟接入信息。
可选的,在本实施例的第三种可能的实施方式中, 所述目标无线网络控制 节点通过增强型切换请求消息接收所述可延迟接入信息。
参见图 18,示出了本发明实施例中用于用户设备切换的目标无线网络控制 节点装置实施例 2的结构图。
本实施例的目标无线网络控制节点可以用于将用户设备从源无线网络控 制节点切换到所述目标无线网络控制节点,所述目标无线网络控制节点可以包 括: 第二接收模块 1801 , 用于接收所述用户设备的可延迟接入信息; 其中, 所 述可延迟接入信息是由所述用户设备在完成将无线资源控制连接切换至所述 目标无线网络控制节点时查询并在查询到时发送给所述目标无线网络控制节 点的; 第二判断模块 1802, 用于判断所述目标无线网络控制节点是否处于网络 拥塞; 释放消息发送模块 1803 , 用于在所述第二判断模块 1802的判断结果为所 述目标无线网络控制节点处于网络拥塞的情况下,发送连接释放消息给所述用 户设备,以便所述用户终端根据所述连接释放消息释放与所述目标无线网络控 制节点之间的无线资源控制连接。
可选的, 参见图 19, 在本实施例的第一种可能的实施方式中, 所述第二判 断模块 1802包括: 负载判断子模块 1701 , 用于判断当前小区负载水平是否高于 负载门限; 拥塞确定子模块 1702, 用于在所述负载判断子模块 1701的判断结 果为所述目标无线网络控制节点判断当前小区负载水平高于所述负载门限的 情况下, 确定所述目标无线网络控制节点处于网络拥塞; 非拥塞确定子模块 1703,用于在所述负载判断子模块 1701的判断结果为所述目标无线网络控制节 点判断当前小区负载水平低于所述负载门限的情况下,确定所述目标无线网络 控制节点未处于网络拥塞。
可选的,在本实施例的第二种可能的实施方式中, 所述可延迟接入信息为 载入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
通过本发明目标无线网络控制节点装置实施例的技术方案,目标无线网络 控制节点可以根据由根据源网络设备发送的表示 MTC业务的业务类型信息而 得到的可延迟接入信息或用户设备发送来的可延迟接入信息识别切换来的 MTC设备, 从而在处于拥塞时拒绝 MTC设备的切换接入请求, 实现优先接入 非 MTC设备接入, 从而保证 H2H业务数据传输不发生延迟。 进一步地对应方法实施例,本发明实施例还提供了一种用于用户设备切换 的源网络设备。 参见图 20, 示出了本发明实施例中用于用户设备切换的源网 络设备实施例 2的结构图, 所述源网络设备可以包括: 处理器 2001 , 用于查 询所述用户设备的业务类型信息; 发送器 2002, 用于在所述业务类型信息表 示机器类通信 MTC业务时, 将所述表示 MTC业务的业务类型信息发送给目 标网络设备,以便所述目标无线网络控制节点在接收到基于所述业务类型信息 而得到的可延迟接入信息时,判断所述目标无线网络控制节点是否处于处于网 络拥塞, 如果是则拒绝所述用户设备切换至所述目标无线网络控制节点。
可选的,在本实施例的第一种可能的实施方式中, 所述源网络设备为源无 线网络控制节点所在的源核心网服务器,所述业务类型信息为所述可延迟接入 信息, 所述目标网络设备为目标无线网络控制节点; 所述处理器 2001 , 具体用 于查询所述用户设备的设备属性信息, 在所述设备属性信息表示 MTC业务时 生成所述用户设备的可延迟接入信息。
可选的,在本实施例的第二种可能的实施方式中, 所述源网络设备为源无 线网络节点所在的源核心网服务器,所述业务类型信息为所述用户设备的设备 属性信息,所述目标网络设备为所述目标无线网络控制节点所在的目标核心网 控制器;所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息 生成并发送给所述目标无线网络控制节点的信息。
可选的,在本实施例的第三种可能的实施方式中, 所述源网络设备为源无 线网络控制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设备为 所述目标无线网络控制节点。
可选的,在本实施例的第四种可能的实施方式中,在上述本实施例第三种 可能的实施方式的基础上,所述可延迟接入信息为载入在重定位需求消息中由 所述源无线网络控制节点发送至源核心网服务器的, 并且, 所述可延迟接入信 息是载入在重定位请求消息中由所述源核心网服务器发送至所述目标无线网 络控制节点的, 其中, 所述源核心网服务器为所述源无线网络控制节点所在的 核心网服务器。
可选的,在本实施例的第五种可能的实施方式中,在上述本实施例的第四 种可能的实施方式的基础上,所述可延迟接入信息是载入在重定位请求消息中 由所述源核心网服务器经目标核心网服务器发送至所述目标无线网络控制节 点的, 其中, 所述目标核心网服务器为目标无线网络控制节点所在的核心网服 务器。
可选的,在本实施例的第六种可能的实施方式中,在上述本实施例的第三 种可能的实施方式的基础上,所述可延迟接入信息是载入在增强型重定位请求 消息中由所述源无线网络控制节点发送至所述目标无线网络控制节点的。
可选的,在本实施例的第七种可能的实施方式中, 可以在上述第三至六种 可能的实施方式中任意一种的基础上,所述可延迟接入信息封装在所述源无线 网络控制节点至所述目标无线网络控制节点的透明容器中发送。 可选的,在本实施例的第八种可能的实施方式中, 所述目标无线网络控制 节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处于 网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表示 所述目标无线网络控制节点未处于网络拥塞。
通过本发明中源网络设备装置实施例,可以实现目标无线网络控制节点在 处于拥塞时拒绝接入自其他无线网络控制节点切换来的 MTC设备, 从而实现 在处于拥塞时优先接入非 MTC设备, 从而避免非 MTC设备的 H2H业务在传输 上产生时间延迟。 进一步地对应方法实施例, 本发明实施例还提供了另一种用户设备, 用于 实现该用户设备切换。参见图 21 , 示出了本发明实施例中用户设备装置实施例 2的结构图, 所述用户设备包括: 接收器 2101 , 用于接收源无线网络控制节点 发送的切换指令消息; 处理器 2102, 用于将无线资源控制连接切换至目标无线 网络控制节点, 并在所述无线资源控制连接完成切换时查询可延迟接入信息, 以及,用于根据连接释放消息释放与所述目标无线网络控制节点之间的无线资 源控制连接。
发送器 2103,用于在查询到所述可延迟接入信息时将所述可延迟接入信息 发送给所述目标无线网络控制节点,以便所述目标无线网络控制节点在接收到 所述用户设备的可延迟接入信息时,判断所述目标无线网络控制节点是否处于 网络拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消息 给所述用户设备。
可选的,在本实施例的第一种可能的实施方式中, 所述目标无线网络控制 节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处于 网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表示 所述目标无线网络控制节点未处于网络拥塞。
可选的,在本实施例的第二种可能的实施方式中, 所述可延迟接入信息为 载入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
通过本发明的用户设备装置实施例的技术方案,可以使目标无线网络控制 节点在处于拥塞状态的时候再控制用户设备将已经建立的 RRC连接释放,从而 可以实现在目标无线网络控制节点拥塞时不接入切换来的 MTC设备。 进一步地对应于方法实施例,本发明实施例中还提供了另一种用于用户设 备切换的目标无线网络控制节点。参见图 22, 示出了本发明实施例中用于用户 设备切换的目标无线网络控制节点装置实施例 3的结构图, 所述目标无线网络 控制节点包括: 接收器 2201 , 用于接收基于所述用户设备的业务类型信息而得 到的可延迟接入信息;所述业务类型信息是由源网络设备查询并在确定所述业 务类型信息表示 MTC业务时发送给目标网络设备的; 处理器 2202, 用于判断 所述目标无线网络节点是否处于网络拥塞,如果所述目标无线网络控制节点处 于网络拥塞则拒绝所述用户设备切换至所述目标无线网络控制节点。
可选的, 在本实施例的第一种可能的实施方式中, 所述处理器 2202, 具体 用于判断当前小区负载水平是否高于负载门限,如果所述目标无线网络控制节 点判断当前小区负载水平高于所述负载门限则确定所述目标无线网络控制节 点处于网络拥塞,如果所述目标无线网络控制节点判断当前小区负载水平低于 所述负载门限则确定所述目标无线网络控制节点未处于网络拥塞。
可选的,在本实施例的第二种可能的实施方式中, 所述目标无线网络控制 节点通过重定位请求消息接收所述可延迟接入信息。
可选的,在本实施例的第三种可能的实施方式中, 所述目标无线网络控制 节点通过增强型重定位请求消息接收所述可延迟接入信息。
参见图 23 ,示出了本发明实施例中用于用户设备切换的目标无线网络控制 节点装置实施例 4的结构图, 所述目标无线网络控制节点包括: 接收器 2301 , 用于接收所述用户设备的可延迟接入信息; 其中, 所述可延迟接入信息是由所 述用户设备在完成将无线资源控制连接切换至所述目标无线网络控制节点时 查询并在查询到时发送给所述目标无线网络控制节点的; 处理器 2302, 用于判 断所述目标无线网络控制节点是否处于网络拥塞; 发送器 2303 , 用于在所述目 标无线网络控制节点处于网络拥塞时发送连接释放消息给所述用户设备,以便 所述用户设备根据所述连接释放消息释放与所述目标无线网络控制节点之间 的无线资源控制连接。
可选的, 在本实施例的第一种可能的实施方式中, 所述处理器 2302, 具体 用于判断当前小区负载水平是否高于负载门限,如果所述目标无线网络控制节 点判断当前小区负载水平高于所述负载门限则确定所述目标无线网络控制节 点处于网络拥塞,如果所述目标无线网络控制节点判断当前小区负载水平低于 所述负载门限则确定所述目标无线网络控制节点未处于网络拥塞。
可选的,在本实施例的第二种可能的实施方式中, 所述可延迟接入信息为 载入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
通过本发明目标无线网络控制节点装置实施例的技术方案,可以在处于拥 塞时拒绝 MTC设备的切换接入请求, 实现优先接入非 MTC设备接入, 从而 保证 H2H业务数据传输不发生延迟。 所属领域的技术人员可以清楚地了解到, 为描述的方便和筒洁,仅以上述 各功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上述功能分 配由不同的功能模块完成, 即将装置的内部结构划分成不同的功能模块, 以完 成以上描述的全部或者部分功能。上述描述的系统, 装置和单元的具体工作过 程, 可以参考前述方法实施例中的对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置和方 法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性 的, 例如, 所述模块或单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系 统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间的耦 合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信 连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为 单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者 也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部 单元来实现本实施例方案的目的。 另外, 在本申请各个实施例中的各功能单元可以集成在一个处理单元中, 也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元 中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的 形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售 或使用时, 可以存储在一个计算机可读取存储介质中。基于这样的理解, 本申 请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全 部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储 介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器, 或者网络设备等)或处理器( processor )执行本申请各个实施例所述方法的全 部或部分步骤。 而前述的存储介质包括: U盘、移动硬盘、 只读存储器(ROM, Read-Only Memory ), 随机存取存储器(RAM, Random Access Memory ), 磁 碟或者光盘等各种可以存储程序代码的介质。
以上对本发明实施例所提供的用户设备切换的方法以及包括源网络设备、 用户设备和目标无线网络控制节点在内的装置进行了详细介绍,但以上实施例 的说明只是用于帮助理解本发明的方法及其核心思想,不应理解为对本发明的 限制。本技术领域的技术人员在本发明揭露的技术范围内, 可轻易想到的变化 或替换, 都应涵盖在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种用户设备切换的方法, 其特征在于, 用于将所述用户设备从源无 线网络控制节点切换到目标无线网络控制节点, 所述方法包括:
源网络设备查询所述用户设备的业务类型信息;
所述源网络设备在确定所述业务类型信息表示机器类通信 MTC业务时, 将所述表示 MTC业务的业务类型信息发送给目标网络设备, 以便所述目标无 线网络控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时, 判断所述目标无线网络控制节点是否处于网络拥塞 ,如果所述目标无线网络控 制节点处于网络拥塞则拒绝所述用户设备切换至所述目标无线网络控制节点。
2、 根据权利要求 1所述的方法, 其特征在于, 所述源网络设备为所述源无 线网络控制节点所在的源核心网服务器,所述业务类型信息为所述可延迟接入 信息, 所述目标网络设备为所述目标无线网络控制节点;
所述源网络设备查询所述用户设备的业务类型信息, 包括: 所述源核心网 服务器查询所述用户设备的设备属性信息, 并在所述设备属性信息表示 MTC 业务时生成所述用户设备的可延迟接入信息。
3、 根据权利要求 1所述的方法, 其特征在于, 所述源网络设备为所述源无 线网络节点所在的源核心网服务器,所述业务类型信息为所述用户设备的设备 属性信息,所述目标网络设备为所述目标无线网络控制节点所在的目标核心网 控制器;
所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息生 成并发送给所述目标无线网络控制节点的信息。
4、 根据权利要求 1所述的方法, 其特征在于, 所述源网络设备为所述源无 线网络控制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设备为 所述目标无线网络控制节点。
5、 根据权利要求 4所述的方法, 其特征在于, 所述可延迟接入信息为载入 在重定位需求消息中由所述源无线网络控制节点发送至源核心网服务器的,并 且,所述可延迟接入信息是载入在重定位请求消息中由所述源核心网服务器发 送至所述目标无线网络控制节点的, 其中, 所述源核心网服务器为所述源无线 网络控制节点所在的核心网服务器。
6、 根据权利要求 5所述的方法, 其特征在于, 所述可延迟接入信息是载入 在重定位请求消息中由所述源核心网服务器经目标核心网服务器发送至所述 目标无线网络控制节点的, 其中, 所述目标核心网服务器为目标无线网络控制 节点所在的核心网服务器。
7、 根据权利要求 4所述的方法, 其特征在于, 所述可延迟接入信息是载入 在增强型重定位请求消息中由所述源无线网络控制节点发送至所述目标无线 网给控制节点的。
8、根据权利要求 4~7任意一项所述的方法, 其特征在于, 所述可延迟接入 信息封装在所述源无线网络控制节点至所述目标无线网络控制节点的透明容 器中发送。
9、 根据权利要求 1所述的方法, 其特征在于, 所述目标无线网络控制节点 的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网络 拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所述 目标无线网络控制节点未处于网络拥塞。
10、 一种用户设备切换的方法, 其特征在于, 用于将用户设备从源无线网 络控制节点切换到目标无线网络控制节点, 所述方法包括:
所述用户设备接收所述源无线网络控制节点发送的切换指令消息,将无线 资源控制连接切换至所述目标无线网络控制节点;
所述用户设备在所述无线资源控制连接完成切换时, 查询可延迟接入信 息,并在查询到所述可延迟接入信息时将所述可延迟接入信息发送给所述目标 无线网络控制节点,以便所述目标无线网络控制节点在接收到所述用户设备的 可延迟接入信息时, 判断所述目标无线网络控制节点是否处于网络拥塞,如果 所述目标无线网络控制节点处于网络拥塞则发送连接释放消息给所述用户设 备;
所述用户设备根据所述连接释放消息释放与所述目标无线网络控制节点 之间的无线资源控制连接。
11、 根据权利要求 10所述的方法, 其特征在于, 所述目标无线网络控制节 点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处于网 络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表示所 述目标无线网络控制节点未处于网络拥塞。
12、 根据权利要求 10所述的方法, 其特征在于, 所述可延迟接入信息为载 入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
13、 一种用户设备切换的方法, 其特征在于, 用于将用户设备从源无线网 络控制节点切换到目标无线网络控制节点, 所述方法包括:
所述目标无线网络控制节点接收基于所述用户设备的业务类型信息而得 到的可延迟接入信息;所述业务类型信息是由源网络设备查询并在确定所述业 务类型信息表示 MTC业务时发送给目标网络设备的;
所述目标无线网络控制节点判断所述目标无线网络节点是否处于网络拥 塞,如果所述目标无线网络控制节点处于网络拥塞则拒绝所述用户设备切换至 所述目标无线网络控制节点。
14、 根据权利要求 13所述的方法, 其特征在于, 所述判断所述目标无线网 络节点是否处于网络拥塞, 包括:
所述目标无线网络控制节点判断当前小区负载水平是否高于负载门限; 如果所述目标无线网络控制节点判断当前小区负载水平高于所述负载门 限, 则确定所述目标无线网络控制节点处于网络拥塞; 如果所述目标无线网络 控制节点判断当前小区负载水平低于所述负载门限,则确定所述目标无线网络 控制节点未处于网络拥塞。
15、 根据权利要求 13所述的方法, 其特征在于, 所述目标无线网络控制节 点通过重定位请求消息接收所述可延迟接入信息。
16、 根据权利要求 13所述的方法, 其特征在于, 所述目标无线网络控制节 点通过增强型重定位请求消息接收所述可延迟接入信息。
17、 一种用户设备切换的方法, 其特征在于, 用于将用户设备从源无线网 络控制节点切换到目标无线网络控制节点, 所述方法包括:
所述目标无线网络控制节点接收所述用户设备的可延迟接入信息; 其中, 所述可延迟接入信息是由所述用户设备在完成将无线资源控制连接切换至所 述目标无线网络控制节点时查询并在查询到时发送给所述目标无线网络控制 节点的;
所述目标无线网络控制节点判断所述目标无线网络控制节点是否处于网 络拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消息给 所述用户设备,以便所述用户设备根据所述连接释放消息释放与所述目标无线 网络控制节点之间的无线资源控制连接。
18、 根据权利要求 17所述的方法, 其特征在于, 所述判断所述目标无线网 络节点是否处于网络拥塞, 包括:
所述目标无线网络控制节点判断当前小区负载水平是否高于负载门限; 如果所述目标无线网络控制节点判断当前小区负载水平高于所述负载门 限, 则确定所述目标无线网络控制节点处于网络拥塞; 如果所述目标无线网络 控制节点判断当前小区负载水平低于所述负载门限,则确定所述目标无线网络 控制节点未处于网络拥塞。
19、 根据权利要求 17所述的方法, 其特征在于, 所述可延迟接入信息为载 入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点的。
20、 一种用于用户设备切换的源网络设备, 其特征在于, 所述源网络设备 包括:
第一查询模块, 用于查询所述用户设备的业务类型信息;
第一发送模块, 用于在所述业务类型信息表示机器类通信 MTC业务时, 将所述表示 MTC业务的业务类型信息发送给目标网络设备, 以便目标无线网 络控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时,判断 所述目标无线网络控制节点是否处于处于网络拥塞,如果所述目标无线网络控 制节点处于网络拥塞则拒绝所述用户设备切换至所述目标无线网络控制节点。
21、 根据权利要求 20所述的源网络设备, 其特征在于, 所述源网络设备为 源无线网络控制节点所在的源核心网服务器,所述业务类型信息为所述可延迟 接入信息, 所述目标网络设备为所述目标无线网络控制节点;
所述第一查询模块包括:
属性查询子模块, 用于查询所述用户设备的设备属性信息; 信息生成子模块, 用于在所述设备属性信息表示 MTC业务时生成所述用 户设备的可延迟接入信息。
22、 根据权利要求 20所述的源网络设备, 其特征在于, 所述源网络设备为 源无线网络节点所在的源核心网服务器,所述业务类型信息为所述用户设备的 设备属性信息,所述目标网络设备为所述目标无线网络控制节点所在的目标核 心网控制器;
所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息生 成并发送给所述目标无线网络控制节点的信息。
23、 根据权利要求 20所述的源网络设备, 其特征在于, 所述源网络设备为 源无线网络控制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设 备为所述目标无线网络控制节点。
24、 根据权利要求 23所述的源网络设备, 其特征在于, 所述可延迟接入信 息为载入在重定位需求消息中由所述源无线网络控制节点发送至源核心网服 务器的, 并且, 所述可延迟接入信息为载入在重定位请求消息中由所述源核心 网服务器发送至所述目标无线网络控制节点的, 其中, 所述源核心网服务器为 所述源无线网络控制节点所在的核心网服务器。
25、 根据权利要求 24所述的源网络设备, 其特征在于, 所述可延迟接入信 息为载入在重定位请求消息中由所述源核心网服务器经目标核心网服务器发 送至所述目标无线网络控制节点的, 其中, 所述目标核心网服务器为目标无线 网络控制节点所在的核心网服务器。
26、 根据权利要求 23所述的源网络设备, 其特征在于, 所述可延迟接入信 息是载入在增强型重定位请求消息中由所述源无线网络控制节点发送至所述 目标无线网络控制节点的。
27、 根据权利要求 23~26任意一项所述的源网络设备, 其特征在于, 所述 可延迟接入信息封装在源无线网络控制节点至目标无线网络控制节点的透明 容器中发送。
28、 根据权利要求 20所述的源网络设备, 其特征在于, 所述目标无线网络 控制节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点 处于网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限 表示所述目标无线网络控制节点未处于网络拥塞。
29、 一种用户设备, 其特征在于, 所述用户设备包括:
切换指令接收模块, 用于接收源无线网络控制节点发送的切换指令消息; 切换模块, 用于将无线资源控制连接切换至目标无线网络控制节点; 第二查询模块, 用于在所述无线资源控制连接完成切换时, 查询可延迟接 入信息;
第二发送模块,用于在查询到所述可延迟接入信息时将所述可延迟接入信 息发送给所述目标无线网络控制节点,以便所述目标无线网络控制节点在接收 到所述用户设备的可延迟接入信息时,判断所述目标无线网络控制节点是否处 于网络拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消 息给所述用户设备;
连接释放模块,用于根据所述连接释放消息释放与所述目标无线网络控制 节点之间的无线资源控制连接。
30、 根据权利要求 29所述的用户设备, 其特征在于, 所述目标无线网络控 制节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处 于网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表 示所述目标无线网络控制节点未处于网络拥塞。
31、 根据权利要求 29所述的用户设备, 其特征在于, 所述可延迟接入信息 为载入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点 的。
32、 一种用于用户设备切换的目标无线网络控制节点, 其特征在于, 所述 目标无线网络控制节点包括:
第一接收模块,用于接收基于所述用户设备的业务类型信息而得到的可延 迟接入信息;所述业务类型信息是由源网络设备查询并在确定所述业务类型信 息表示 MTC业务时发送给目标网络设备的;
第一判断模块, 用于判断所述目标无线网络节点是否处于网络拥塞; 拒绝切换模块,用于在所述第一判断模块的判断结果为所述目标无线网络 控制节点处于网络拥塞的情况下,拒绝所述用户设备切换至所述目标无线网络 控制节点。
33、 根据权利要求 32所述的目标无线网络控制节点, 其特征在于, 所述第 一判断模块包括:
负载判断子模块, 用于判断当前小区负载水平是否高于负载门限; 拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无线 网络控制节点判断当前小区负载水平高于所述负载门限的情况下,确定所述目 标无线网络控制节点处于网络拥塞;
非拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无 线网络控制节点判断当前小区负载水平低于所述负载门限的情况下,确定所述 目标无线网络控制节点未处于网络拥塞。
34、 根据权利要求 32所述的目标无线网络控制节点, 其特征在于, 所述目 标无线网络控制节点通过重定位请求消息接收所述可延迟接入信息。
35、 根据权利要求 32所述的目标无线网络控制节点, 其特征在于, 所述目 标无线网络控制节点通过增强型重定位请求消息接收所述可延迟接入信息。
36、 一种用于用户设备切换的目标无线网络控制节点, 其特征在于, 所述 目标无线网络控制节点包括:
第二接收模块, 用于接收所述用户设备的可延迟接入信息; 其中, 所述可 延迟接入信息是由所述用户设备在完成将无线资源控制连接切换至所述目标 无线网络控制节点时查询并在查询到时发送给所述目标无线网络控制节点的; 第二判断模块, 用于判断所述目标无线网络控制节点是否处于网络拥塞, 如果是则发送连接释放消息给所述用户设备;
释放消息发送模块,用于在所述第二判断模块的判断结果为所述目标无线 网络控制节点处于网络拥塞的情况下,发送连接释放消息给所述用户设备, 以 便所述用户终端根据所述连接释放消息释放与所述目标无线网络控制节点之 间的无线资源控制连接。
37、 根据权利要求 36所述的目标无线网络控制节点, 其特征在于, 所述第 二判断模块包括: 负载判断子模块, 用于判断当前小区负载水平是否高于负载门限; 拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无线 网络控制节点判断当前小区负载水平高于所述负载门限的情况下,确定所述目 标无线网络控制节点处于网络拥塞;
非拥塞确定子模块,用于在所述负载判断子模块的判断结果为所述目标无 线网络控制节点判断当前小区负载水平低于所述负载门限的情况下,确定所述 目标无线网络控制节点未处于网络拥塞。
38、 根据权利要求 36所述的目标无线网络控制节点, 其特征在于, 所述可 延迟接入信息为载入在切换完成消息中由所述用户设备发送至所述目标无线 网络控制节点的。
39、 一种用于用户设备切换的源网络设备, 其特征在于, 所述源网络设备 包括:
处理器, 用于查询所述用户设备的业务类型信息;
发送器, 用于在所述业务类型信息表示机器类通信 MTC业务时, 将所述 表示 MTC业务的业务类型信息发送给目标网络设备, 以便所述目标无线网络 控制节点在接收到基于所述业务类型信息而得到的可延迟接入信息时,判断所 述目标无线网络控制节点是否处于处于网络拥塞,如果是则拒绝所述用户设备 切换至所述目标无线网络控制节点。
40、 根据权利要求 39所述的源网络设备, 其特征在于, 所述源网络设备为 源无线网络控制节点所在的源核心网服务器,所述业务类型信息为所述可延迟 接入信息, 所述目标网络设备为目标无线网络控制节点;
所述处理器, 具体用于查询所述用户设备的设备属性信息,在所述设备属 性信息表示 MTC业务时生成所述用户设备的可延迟接入信息。
41、 根据权利要求 39所述的源网络设备, 其特征在于, 所述源网络设备为 源无线网络节点所在的源核心网服务器,所述业务类型信息为所述用户设备的 设备属性信息,所述目标网络设备为所述目标无线网络控制节点所在的目标核 心网控制器;
所述可延迟接入信息为所述目标核心网服务器根据所述设备属性信息生 成并发送给所述目标无线网络控制节点的信息。
42、 根据权利要求 39所述的源网络设备, 其特征在于, 所述源网络设备为 源无线网络控制节点, 所述业务类型信息为可延迟接入信息, 所述目标网络设 备为所述目标无线网络控制节点。
43、 根据权利要求 42所述的源网络设备, 其特征在于, 所述可延迟接入信 息为载入在重定位需求消息中由所述源无线网络控制节点发送至源核心网服 务器的, 并且, 所述可延迟接入信息是载入在重定位请求消息中由所述源核心 网服务器发送至所述目标无线网络控制节点的, 其中, 所述源核心网服务器为 所述源无线网络控制节点所在的核心网服务器。
44、 根据权利要求 43所述的源网络设备, 其特征在于, 所述可延迟接入信 息是载入在重定位请求消息中由所述源核心网服务器经目标核心网服务器发 送至所述目标无线网络控制节点的, 其中, 所述目标核心网服务器为目标无线 网络控制节点所在的核心网服务器。
45、 根据权利要求 42所述的源网络设备, 其特征在于, 所述可延迟接入信 息是载入在增强型重定位请求消息中由所述源无线网络控制节点发送至所述 目标无线网络控制节点的。
46、 根据权利要求 42~45任意一项所述的源网络设备, 其特征在于, 所述 可延迟接入信息封装在所述源无线网络控制节点至所述目标无线网络控制节 点的透明容器中发送。
47、 根据权利要求 39所述的源网络设备, 其特征在于, 所述目标无线网络 控制节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点 处于网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限 表示所述目标无线网络控制节点未处于网络拥塞。
48、 一种用户设备, 其特征在于, 所述用户设备包括:
接收器, 用于接收源无线网络控制节点发送的切换指令消息;
处理器, 用于将无线资源控制连接切换至目标无线网络控制节点, 并在所 述无线资源控制连接完成切换时查询可延迟接入信息, 以及, 用于根据连接释 放消息释放与所述目标无线网络控制节点之间的无线资源控制连接。 发送器,用于在查询到所述可延迟接入信息时将所述可延迟接入信息发送 给所述目标无线网络控制节点,以便所述目标无线网络控制节点在接收到所述 用户设备的可延迟接入信息时,判断所述目标无线网络控制节点是否处于网络 拥塞,如果所述目标无线网络控制节点处于网络拥塞则发送连接释放消息给所 述用户设备。
49、 根据权利要求 48所述的用户设备, 其特征在于, 所述目标无线网络控 制节点的当前小区负载水平高于负载门限表示所述目标无线网络控制节点处 于网络拥塞,所述目标无线网络控制节点的当前小区负载水平低于负载门限表 示所述目标无线网络控制节点未处于网络拥塞。
50、 根据权利要求 48所述的用户设备, 其特征在于, 所述可延迟接入信息 为载入在切换完成消息中由所述用户设备发送至所述目标无线网络控制节点 的。
51、 一种用于用户设备切换的目标无线网络控制节点, 其特征在于, 所述 目标无线网络控制节点包括:
接收器,用于接收基于所述用户设备的业务类型信息而得到的可延迟接入 信息;所述业务类型信息是由源网络设备查询并在确定所述业务类型信息表示 MTC业务时发送给目标网络设备的;
处理器, 用于判断所述目标无线网络节点是否处于网络拥塞,如果所述目 标无线网络控制节点处于网络拥塞则拒绝所述用户设备切换至所述目标无线 网络控制节点。
52、 根据权利要求 51所述的目标无线网络控制节点, 其特征在于, 所述处 理器, 具体用于判断当前小区负载水平是否高于负载门限,如果所述目标无线 网络控制节点判断当前小区负载水平高于所述负载门限则确定所述目标无线 网络控制节点处于网络拥塞,如果所述目标无线网络控制节点判断当前小区负 载水平低于所述负载门限则确定所述目标无线网络控制节点未处于网络拥塞。
53、 根据权利要求 51所述的目标无线网络控制节点, 其特征在于, 所述目 标无线网络控制节点通过重定位请求消息接收所述可延迟接入信息。
54、 根据权利要求 51所述的目标无线网络控制节点, 其特征在于, 所述目 标无线网络控制节点通过增强型重定位请求消息接收所述可延迟接入信息。
55、 一种用于用户设备切换的目标无线网络控制节点, 其特征在于, 所述 目标无线网络控制节点包括:
接收器, 用于接收所述用户设备的可延迟接入信息; 其中, 所述可延迟接 入信息是由所述用户设备在完成将无线资源控制连接切换至所述目标无线网 络控制节点时查询并在查询到时发送给所述目标无线网络控制节点的;
处理器, 用于判断所述目标无线网络控制节点是否处于网络拥塞; 发送器,用于在所述目标无线网络控制节点处于网络拥塞时发送连接释放 消息给所述用户设备,以便所述用户设备根据所述连接释放消息释放与所述目 标无线网络控制节点之间的无线资源控制连接。
56、 根据权利要求 55所述的目标无线网络控制节点, 其特征在于, 所述处 理器, 具体用于判断当前小区负载水平是否高于负载门限,如果所述目标无线 网络控制节点判断当前小区负载水平高于所述负载门限则确定所述目标无线 网络控制节点处于网络拥塞,如果所述目标无线网络控制节点判断当前小区负 载水平低于所述负载门限则确定所述目标无线网络控制节点未处于网络拥塞。
57、 根据权利要求 55所述的目标无线网络控制节点, 其特征在于, 所述可 延迟接入信息为载入在切换完成消息中由所述用户设备发送至所述目标无线 网给控制节点的。
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