WO2017084010A1 - 一种位置信息分配方法、装置及设备 - Google Patents

一种位置信息分配方法、装置及设备 Download PDF

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Publication number
WO2017084010A1
WO2017084010A1 PCT/CN2015/094694 CN2015094694W WO2017084010A1 WO 2017084010 A1 WO2017084010 A1 WO 2017084010A1 CN 2015094694 W CN2015094694 W CN 2015094694W WO 2017084010 A1 WO2017084010 A1 WO 2017084010A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
location
identifier list
location area
plane gateway
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PCT/CN2015/094694
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English (en)
French (fr)
Inventor
舒林
曹龙雨
张艳平
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.)
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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 PCT/CN2015/094694 priority Critical patent/WO2017084010A1/zh
Priority to CN201580083297.5A priority patent/CN108141795B/zh
Publication of WO2017084010A1 publication Critical patent/WO2017084010A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a location information distribution method, apparatus, and device.
  • the allocation of the location information of the user equipment mainly refers to the allocation of the Tracking Area Identity List (TAI List), and the network.
  • TAI List Tracking Area Identity List
  • the side manages the location of the UE by the network side by assigning an appropriate TAI List to the UE.
  • the allocation of the TAI List in the EPS network is as follows: the Mobility Management Entity (MME) in the attach or location update process, according to the last visited registration TAI (Last Visited Registered TAI) reported by the UE and the current UE
  • the actual TAI information is used to allocate an appropriate TAI List to the UE, and the TAs in the allocated TAI List are all in the service area of the MME and the Serving Gateway (S-GW), thereby minimizing the movement of the UE.
  • Tracking Area Update (TAU) signaling load The MME is mainly responsible for session management, identity authentication, and access control of the UE, and the S-GW is mainly responsible for data forwarding of the UE.
  • the above allocation method does not apply to the Distributed Gateway (D-GW) architecture.
  • the service area of the user plane gateway (U-GW) in the distributed gateway architecture is much smaller than the service area of the MME. Therefore, the TAI List allocated by the MME to the UE according to the existing allocation method may be larger than one U-GW.
  • the service area, which causes the UE to move within the TAI List does not initiate the TAU procedure, but the UE may actually have moved out of the service area of the current serving U-GW and entered the service area of another U-GW. Since the TAU process is not initiated, the user plane of the UE always transmits data through the original U-GW, causing problems such as extended transmission path and increased Round-Trip Time (RTT), thereby affecting the user experience.
  • RTT Round-Trip Time
  • the TAU process is not initiated.
  • the application provides a location information distribution method, device and device.
  • a location information distribution method comprising:
  • a location area identifier list allocated to the user equipment where the location area in the location area identifier list is in a service area serving a user plane gateway of the user equipment;
  • the control plane gateway allocates a location area identifier list to the user equipment in the foregoing manner.
  • the service area of the user plane gateway is not removed, and when the user equipment moves out of the service area of the user plane gateway, the location area in the location area identifier list must also be removed, so the location area update process is initiated;
  • the user equipment is moved in the location area identifier list, the user equipment is always in the service area of the user plane gateway of the service user equipment. Therefore, the user plane gateway of the service user equipment is the optimal user plane gateway of the user equipment, ensuring the user. Business experience.
  • the acquiring location information of the user equipment includes:
  • the request message carries location information of the user equipment, where the request message is a request to create a session or modify a bearer request or modify an access bearer request or a change notification request.
  • control plane gateway avoids the use of a new message for transmission by creating a session request or modifying a bearer request or modifying an access bearer request or a change notification request to receive location information of the user equipment sent by the control plane gateway, thereby saving Transfer resources.
  • the location information of the user equipment is a registration location area that the user equipment last accessed or the user equipment is currently The location area where you are.
  • the location information of the user equipment is the registration location area that the user equipment last accessed or the location area where the user equipment is currently located, and the location area identifier list that the control plane gateway assigns to the user equipment is based on the location where the user equipment appears (user).
  • the location area identifier list assigned to the user equipment which is allocated by the registration location area that the device last accessed or the location area where the user equipment is currently located. The precision is higher.
  • the determining, according to the location information of the user equipment, determining that the A list of location area identifiers for user devices including:
  • the control plane gateway first obtains the service area information of the user plane gateway, and then allocates a location area identifier list to the user equipment within the scope of the service area information of the user plane gateway, and ensures that the assigned location area identifier list allocated by the user equipment is in the user plane gateway. Within the service area.
  • the location area in the location area identifier list is in addition to the service area of the user plane gateway, and the location area in the location area identifier list is also the location area where the user equipment is currently located (or the user equipment last accessed) Registering a location area), or part or all of a location area within a set range around a location area where the user equipment is currently located (or a registration location area last accessed by the user equipment), such that the location area identifier assigned to the user equipment
  • the list is assigned based on the location where the user equipment has appeared, ensuring the accuracy of the list of location area identifiers assigned to the user equipment.
  • the acquiring the service area information of the user plane gateway includes:
  • the control plane gateway can obtain the service area information of the user plane gateway from the user plane gateway through the information request message in an instant, and can also find the pre-stored storage by storing the local configuration data. Service area information of the user plane gateway.
  • the location according to the user equipment Information before the acquiring the service area information of the user plane gateway, the location according to the user equipment Information, determining a list of location area identifiers assigned to the user equipment, further comprising:
  • the control plane gateway Before obtaining the service area information of the user plane gateway, the control plane gateway needs to determine a preferred user plane gateway according to the location of the user equipment, and then obtain the service area information of the preferred user plane gateway to ensure the location area identifier subsequently assigned to the user equipment. A list is also preferred.
  • the acquiring the user The service area information of the gateway including:
  • the service area information of the more than one user plane gateway is obtained from the configuration data.
  • the determining, according to the location information of the user equipment, the location area identifier list that is allocated to the user equipment, the method further includes:
  • the location area identifier is allocated to the user equipment in a range of service area information of the more than one user plane gateway List, including:
  • control plane gateway may first perform screening combination according to the service area information of more than one user plane gateway, and determine information of all the merged areas of the service area of more than one user plane gateway (or other areas in the foregoing implementation manner). And then assigning the location area identification list to the user equipment according to information of all the merged areas of the service area of more than one user plane gateway (or other areas in the above implementation manner).
  • a location information distribution method comprising:
  • the location area identifier list is processed according to the service area of the mobility management network element, and the processed location area identifier list is sent to the user equipment.
  • the mobile management network element allocates a location area identifier list to the user equipment in the foregoing manner.
  • the location area in the location area identifier list is in the service area of the user plane gateway of the service user equipment, the user equipment moves in the location area identifier list.
  • the service area of the user plane gateway is not removed, and when the user equipment moves out of the service area of the user plane gateway, the location area in the location area identifier list must also be removed, so the location area update process is initiated;
  • the user equipment is moved in the location area identifier list, the user equipment is always in the service area of the user plane gateway of the service user equipment. Therefore, the user plane gateway of the service user equipment is the optimal user plane gateway of the user equipment, which ensures User business experience.
  • the processing, by the service area of the mobile management network element, processing the location area identifier list, and sending the processed location area identifier list to the User equipment including:
  • the location area identifier list includes a location area that is not in the service area of the mobility management network element, the location area that is not in the service area of the mobility management network element is from the location area identifier list. Deleting, and transmitting the updated location area identifier list to the user equipment; or
  • the location area included in the location area identifier list is in the service area of the mobility management network element, send the location area identifier list to the user equipment.
  • the mobility management network element may receive the location area identifier list of the user equipment directly sent by the control plane gateway, and after receiving the location area identifier list of the user equipment directly sent by the control plane gateway, the mobility management network element determines the location area of the received user equipment. Whether the location area in the service area that does not belong to the mobility management network element exists in the identifier list, and if it exists, deletes it. This ensures that the location area identifier list sent to the user equipment is in the service area of the mobility management network element, which is convenient. Management of mobile management network elements.
  • the method before the obtaining the location area identifier list of the user equipment sent by the control plane gateway of the serving user equipment, the method also includes:
  • the mobility management network element Before acquiring the location area identifier list of the user equipment sent by the control plane gateway of the service user equipment, the mobility management network element needs to send the location information of the user equipment to the control plane gateway, so that the control plane gateway can determine the user according to the location information of the user equipment. The location area identification list of the device is then sent to the mobility management network element.
  • the location information of the user equipment is a registration location area that the user equipment last accessed or a location area where the user equipment is currently located.
  • the mobility management network element receives an attach request or a location update request sent by the user equipment, where the attach request or the location update request includes a registration location area identifier that is accessed by the user equipment last time;
  • the mobile management network element transmits the registration location area identifier that the user equipment last accessed through the attach request or the location update request sent by the user equipment, so as to avoid the transmission of the registration location area identifier that the user equipment last accessed by using the new message, thereby saving the transmission. Resources.
  • the mobility management network element receives the location information of the user equipment reported by the base station, and the mobility management network element obtains the location information of the user equipment by reporting by the base station.
  • a location information distribution apparatus comprising a plurality of units, such as an acquisition unit, a processing unit, and a transmission unit, the plurality of units being used to implement the method provided by the first aspect.
  • a location information distribution apparatus comprising a plurality of units, such as an acquisition unit, a processing unit and a transmission unit, the plurality of units being used to implement the method provided by the second aspect.
  • a location information distribution apparatus comprising a processor, a memory, and a communication interface; the memory is configured to store a software program and a module, the processor being stored or executed by the storage
  • a location area identifier list allocated to the user equipment where the location area in the location area identifier list is in a service area serving a user plane gateway of the user equipment;
  • the location area identifier list Sending, by the communication interface, the location area identifier list to the mobility management network element serving the user equipment, so that the mobility management network element sends the location area identifier list to the user equipment.
  • a location information distribution apparatus comprising a processor, a memory, and a communication interface; the memory is configured to store a software program and a module, the processor being stored or executed by the storage
  • the location area identifier list is processed according to the service area of the mobility management network element, and the processed location area identifier list is sent to the user equipment by using the communication interface.
  • a computer readable storage medium for storing program code executed by a processor when the location information is allocated.
  • the program code includes instructions for implementing the method provided by the first aspect.
  • FIG. 1 is a schematic diagram of a distributed gateway architecture provided by an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a C-GW according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for allocating location information according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of another method for allocating location information according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of another method for allocating location information according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of another method for allocating location information according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a location information distribution apparatus according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another location information distribution apparatus according to an embodiment of the present invention.
  • the distributed gateway architecture is first introduced in conjunction with FIG.
  • the distributed gateway architecture is based on the idea that the network function control plane is separated from the user plane, and an enhanced network architecture proposed in the existing EPS network architecture.
  • the distributed gateway architecture includes a Control Plane Gateway (C-GW) and a U-GW.
  • C-GW is a centralized control plane gateway that integrates the functions of the S-GW and Packet Data Network Gateway (P-GW) control planes in the existing EPS network to specifically handle the EPS network.
  • Control plane signaling including mobility management, session management, address management, path management, and billing management.
  • U-GW is a distributed user plane gateway that integrates the functions of S-GW and P-GW user planes in existing EPS networks to specifically handle user plane data in 3GPP EPS networks, including routing and forwarding, and data packets. Features such as inspection, packet statistics, and quality of service execution.
  • the C-GW implements control and management of user plane data processing through interaction with the U-GW, and the U-GW implements processing of user plane data under the control and management of the C-GW. It should be noted that, for a UE, only one C-GW serves it at any time, but multiple U-GWs can serve it at the same time.
  • the C-GW serving the UE may be referred to as a C-GW serving the UE. It may also be referred to as a serving C-GW of the UE; a U-GW serving the UE may be referred to as a U-GW serving the UE, and may also be referred to as a serving U-GW of the UE.
  • the U-GW and the C-GW can be connected by using an S18 interface, and the S18 interface can reuse an interface protocol between the S-GW and the P-GW, such as a General Packet Radio Service Tunneling Protocol (GTP), or Other interface protocols or newly defined protocols are not limited by the present invention.
  • GTP General Packet Radio Service Tunneling Protocol
  • the S18 interface is only a naming manner of the interface between the U-GW and the C-GW, and the interface may also be named as another name, such as S15 or S20, which is not limited by the present invention.
  • the distributed gateway architecture further includes a UE and an MME, and the UE is connected to the MME and the U-GW through an Evolved UMTS Territorial Radio Access Network (E-UTRAN).
  • the MME has functions such as session management, identity authentication, and access control.
  • the MME and the C-GW may also be used to be responsible for allocating the location information of the UE.
  • the UE involved in the present invention may include a handheld device having a wireless communication function, an in-vehicle device, A wearable device, a computing device, or other processing device connected to a wireless modem, and various forms of UE, mobile station (MS), terminal, terminal equipment, and the like.
  • UE mobile station
  • the distributed gateway architecture also includes network devices and networks in a common EPS network architecture, such as a Home Subscriber Server (HSS), and network devices and networks in the distributed gateway architecture may be used. Connect in the way of the existing EPS network.
  • a common EPS network architecture such as a Home Subscriber Server (HSS)
  • HSS Home Subscriber Server
  • the U-GW can perform on-demand distributed deployment according to service requirements, and implement local access of the UE, thereby shortening the RTT of the user plane data of the UE and improving the user experience.
  • the location of the U-GW is closer to the MAN or even the base station controller of the UE than the P-GW in the common EPS network architecture.
  • the service area is wider than the EPS.
  • the service area of the MME in the network architecture is much smaller, thereby increasing the probability of U-GW change during UE mobility.
  • the MME still uses the TAI information of the TA currently located by the UE to allocate the location area identifier list to the UE, regardless of the service area of the U-GW, then the location area identifier list allocated to the UE will likely exist to currently provide the UE.
  • a TA outside the service area of the serving U-GW in which case, if the UE moves out of the service area of the current serving U-GW into another TA, and the other TA exists in the location area identification list but belongs to another The service area of the U-GW (that is, the service area that does not belong to the U-GW currently serving the UE), then the UE will not initiate the TAU process, and still use the U-GW currently serving the UE to perform user plane data transmission.
  • the present invention provides a method for allocating location information, which can ensure that all TAs in the location area identifier list allocated to the UE are located within the service area of the U-GW currently serving the UE, so that once the UE moves out of the current
  • the service area of the U-GW serving the UE initiates a TAU procedure, and in this process, the U-GW is reselected, and the U-GW closer to the UE (ie, the other U-GW described above) is selected as the UE.
  • the location area identifier list is the tracking area identifier list TAI List.
  • FIG. 2 is a schematic diagram of a possible hardware structure of the C-GW shown in FIG. 1.
  • the C-GW includes a processor 10, a memory 20, and a communication interface 30.
  • the structure shown in FIG. 2 does not constitute a limitation on the C-GW and may include more or less than the illustration. Parts, or combinations of parts, or different parts. among them:
  • the processor 10 is a control center of the C-GW that connects various portions of the entire C-GW using various interfaces and lines, by running or executing software programs and/or modules stored in the memory 20, and by calling them stored in the memory 20.
  • the data performing various functions of the C-GW and processing data, thereby overall control of the C-GW.
  • the processor 10 can be implemented by a CPU or by a network processor (English: network processor, abbreviated as NP) having a control plane function.
  • the memory 20 can be used to store software programs as well as modules.
  • the processor 10 executes various functional applications and data processing by running software programs and modules stored in the memory 20.
  • the memory 20 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system 21, an acquisition module 22, a processing module 23, a sending module 24, and an application 25 required for at least one function (such as a location area identifier). List allocation, etc.); the storage data area can store data created according to the use of the C-GW (such as location information of the UE, etc.) and the like.
  • the memory 20 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (English: Static Random Access Memory, SRAM), electrically erasable programmable read only Memory (English: Electrically Erasable Programmable Read-Only Memory, EEPROM for short), Erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (English: Programmable Read- Only Memory (referred to as: PROM), read only memory (English: Read Only Memory, referred to as: ROM), magnetic memory, flash memory, disk or optical disk. Accordingly, memory 20 may also include a memory controller to provide processor 10 access to memory 20.
  • static random access memory English: Static Random Access Memory, SRAM
  • electrically erasable programmable read only Memory English: Electrically Erasable Programmable Read-Only Memory, EEPROM for short
  • EPROM Erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • magnetic memory magnetic memory
  • flash memory disk
  • the processor 20 performs the following functions by the operation obtaining module 22: acquiring location information of the UE; the processor 20 performs the following functions by using the processing module 23: determining a location area identifier list, a location area, allocated to the UE according to the location information of the UE.
  • the location area in the identification list is within the service area of the U-GW serving the UE; the processor 20 performs the following function by running the transmission module 24: transmitting the location area identification list to the MME serving the UE through the communication interface 30, so that the MME will The location area identification list is sent to the UE.
  • a possible hardware structure diagram of the MME shown in FIG. 1 may be the same as the structure of the C-GW shown in FIG. 2.
  • the processor 20 of the MME performs the following functions by the operation obtaining module 22: acquiring a location area identifier list of the UE that is sent by the C-GW of the serving UE, where the location area identifier list is determined by the C-GW according to the location information of the UE, and the location area The location area in the identification list is Serving within the service area of the U-GW of the UE; the processor 20 performs the following functions by the operation processing module 23: processing the location area identification list according to the service area of the MME; the processor 20 performs the following functions by running the transmission module 24: by communication
  • the interface 30 sends the processed location area identifier list to the UE.
  • FIG. 3 is a flowchart of a method for allocating location information according to an embodiment of the present invention.
  • the method can be performed by a C-GW in the foregoing distributed gateway architecture, as shown in FIG. 3, the method includes the following steps.
  • Step 201 Acquire location information of the UE.
  • Step 202 Determine, according to location information of the UE, a location area identifier list allocated to the UE, where the location area in the location area identifier list is in a service area of the U-GW serving the UE.
  • Step 203 Send the location area identifier list to the MME, so that the MME sends the location area identifier list to the UE.
  • the C-GW allocates a location area identifier list to the UE in the foregoing manner, and the location area in the location area identifier list is in the service area of the U-GW serving the UE, so that the UE is in the location area identifier list.
  • the service area of the U-GW is not removed, and when the UE moves out of the service area of the U-GW, the location area in the location area identification list must also be removed, so the TAU process is initiated;
  • the UE is in the location area identifier list, the UE is always in the service area of the U-GW serving the UE. Therefore, the U-GW of the serving UE is always the optimal U-GW of the current location of the UE, ensuring the user service experience. .
  • FIG. 4 is a flowchart of a method for allocating location information according to an embodiment of the present invention. The method can be performed by the MME in the foregoing distributed gateway architecture, as shown in FIG. 4, the method includes the following steps.
  • Step 301 Acquire a location area identifier list of the UE that is sent by the C-GW of the serving UE.
  • the location area identifier list is determined by the C-GW according to the location information of the UE, and the location area of the location area identifier list is in the U-GW of the serving UE. Within the service area.
  • Step 302 Process the location area identifier list according to the service area of the MME, and send the processed location area identifier list to the UE.
  • the MME allocates a location area identifier list to the UE in the foregoing manner, and the location area in the location area identifier list is in the service area of the U-GW serving the UE, so that the UE moves in the location area identifier list.
  • the service area of the U-GW is not removed, and when the UE moves out of the service area of the U-GW, the location area in the location area identification list must also be removed. Therefore, the TAU process is initiated.
  • the foregoing manner also ensures that when the UE moves in the location area identifier list, the UE is always in the service area of the U-GW serving the UE, and therefore the U-GW of the serving UE is always the current location of the UE.
  • the optimal U-GW ensures the user's service experience.
  • FIG. 5 is a flowchart of a method for allocating location information according to an embodiment of the present invention.
  • the location information allocation action of the UE in the method is performed by the C-GW. As shown in FIG. 5, the method includes the following steps.
  • Step 401 The UE sends an attach request or a location update request or a packet data network connection request to the MME, and the MME receives an attach request or a location update request or a Packet Data Network (PDN) connection request sent by the UE.
  • the MME receives the attach request or the location update request or the packet data network connection request, that is, the location information allocation process of the UE is started. This step is prior art.
  • the UE may include the last visited registration of the UE in the attach request or the location update request.
  • the location area identifier is sent to the MME.
  • the packet data network connection request may include an Access Point Name (APN).
  • API Access Point Name
  • Step 402 The MME sends the location information of the UE to the C-GW, and the C-GW receives the location information of the UE sent by the MME.
  • the location information of the UE is a registration location area that the UE last accessed or a location area where the UE is currently located.
  • the location area includes, but is not limited to, a TA, a Location Area (LA), and a Routing Area (RA).
  • the MME may send the location information of the UE to the C-GW by sending a request message, where the request message carries the location information of the UE.
  • the request message is a Create Session Request or a Modify Bearer Request or a Modify Access Bearers Request or a Change Notification Request.
  • the request message may also be other requests.
  • the C-GW receives the request message sent by the MME, where the request message carries the location information of the UE.
  • the method further includes: acquiring, by the MME, a location area where the UE is currently located.
  • the acquiring, by the MME, the location area where the UE is currently located may include: receiving the current access of the UE.
  • the obtaining, by the MME, the location information of the UE may further include: receiving an attach request or a location update request sent by the UE, and acquiring, from the attach request or the location update request, the registration location area that the UE accessed last time.
  • the MME obtains location information of the UE from the memory, and the location information may be stored in the memory after being received in advance.
  • the MME receives the packet data network connection request, the MME also sends the access point name APN in the packet data network connection request to the C-GW.
  • Step 403 The C-GW determines the U-GW serving the UE according to the location information of the UE.
  • the C-GW determines the U-GW of the serving UE according to the location information of the UE and the APN, if the APN is different from the APN of the existing PDN of the UE.
  • the serving U-GW determined by the MME may be different from the serving U-GW of the existing PDN of the UE, so that the UE has more than one serving U-GW at the same time, and the serving C-GW of the UE can learn the current service of the UE.
  • the number of U-GWs may be different from the serving U-GW of the existing PDN of the UE, so that the UE has more than one serving U-GW at the same time, and the serving C-GW of the UE can learn the current service of the UE. The number of U-GWs.
  • Step 404 The C-GW acquires service area information of the serving U-GW of the UE.
  • An optional implementation manner of the C-GW acquiring the service area information of the U-GW is that the service area information of the U-GW is obtained from the configuration data, and the C-GW does not need to send a request message to the serving U-GW.
  • the C-GW sends a request message to the U-GW, requesting the U-GW to send the service area information to the C-GW; and the service U-GW sends its own service area information according to the request message. It is sent to the C-GW in the response message.
  • the request message may be a Create Session Request or a Modify Bearer Request or a Modify Access Bearers Request, or may be another request message, which is not limited.
  • the response message may be a Create Session Response or a Modify Bearer Response or a Modify Access Bearers Response, or may be another response message, which is not limited.
  • the C-GW obtains the service area information of the U-GW, which may be the service area information of acquiring one U-GW, or the service area information of acquiring more than one U-GW.
  • an optional implementation manner in which the C-GW acquires service area information of more than one U-GW is that the service area information of more than one U-GW is obtained from the configuration data, and the C-GW does not need to send a request message to the C-GW.
  • Service U-GW is that the service area information of more than one U-GW is obtained from the configuration data, and the C-GW does not need to send a request message to the C-GW.
  • the C-GW sends a request message to each U-GW, requesting the U-GW to send the service area information to the C-GW; according to the request message, the service U-GW will Self The service area information of the body is sent to the C-GW in the response message.
  • the request message may be a Create Session Request or a Modify Bearer Request or a Modify Access Bearers Request.
  • the request message may also be other requests.
  • the response message may be a Create Session Response or a Modify Bearer Response or a Modify Access Bearers Response.
  • the reply message may also be another response.
  • the service area information of the U-GW may include one or more location area identifiers, for example, the service area of the U-GW may be ⁇ TA1, TA2, TA3 ⁇ .
  • Step 405 The C-GW allocates a location area identifier list to the UE within the range of the service area information of the U-GW according to the location information of the UE.
  • the C-GW determines that there is only one U-GW serving the UE, the C-GW directly allocates the location area identifier list to the UE within the range of the service area information of the one U-GW in step 405.
  • the C-GW determines that there is more than one U-GW serving the UE, in step 405, the C-GW allocates a location area identifier list to the UE within the range of service area information of more than one U-GW.
  • the UE is allocated a location area identifier list in a range of service area information of more than one U-GW, including:
  • the UE is assigned a location area identity list within a service area of any one of the more than one U-GW.
  • the C-GW may first determine a configuration policy, and filter and combine service area information of more than one U-GW according to the configuration policy to determine information of all the merged areas of the service area of more than one U-GW (or Other areas in the above implementation).
  • the configuration policy corresponds to the intersection or merged area of the service area of more than one U-GW, for example:
  • All merged areas of the service area of more than one U-GW correspond to a union of the set of location area identifiers in all U-GW service area information
  • intersection area of the service area of more than one U-GW corresponds to all U-GW service area information
  • Any merged area of the service area of more than one U-GW corresponds to a subset of the union of the set of location area identifiers in all U-GW service area information;
  • the service area of any one of the U-GWs of more than one U-GW corresponds to the location area identifier set of any one of the U-GW service area information.
  • the three U-GWs determined by the C-GW are respectively U-GW1, U-GW2, and U-GW3, and the service area information of the three U-GWs is: the service area information of the U-GW1 ⁇ TA1, TA2, TA3 ⁇ ; service area information of U-GW2 ⁇ TA2, TA3, TA4 ⁇ ; service area information of U-GW3 ⁇ TA2, TA3, TA5 ⁇ .
  • the configuration policy in the C-GW can be any of the following three types:
  • the service area information of the U-GW is ⁇ TA1, TA2, TA3, TA4, TA5 ⁇ ; according to the configuration policy (2), the service area information of the U-GW is ⁇ TA2, TA3 ⁇ ; Strategy (3), the service area information of the U-GW may be ⁇ TA1, TA2, TA3 ⁇ or ⁇ TA1, TA4, TA5 ⁇ .
  • the location area in the location area identifier list is not only in the service area of the U-GW, but the location area in the location area identifier list is also the location area where the UE is currently located (or the registered location of the last visited by the UE). Part or all of the location area within the set range around the location area where the UE is currently located (or the registration location area last accessed by the UE), such that the location area identifier list assigned to the UE appears according to the UE The assigned position is guaranteed to ensure the accuracy of the location area identification list assigned to the UE.
  • Step 406 The C-GW sends the location area identifier list of the UE to the MME, and the MME receives and acquires the location area identifier list of the UE sent by the C-GW.
  • the C-GW may send the location area identifier list of the UE to the MME by using a response message, where the response message carries the location area identifier list of the UE.
  • the response message is a Create Session Response or a Modify Bearer Response or a Modify Access Bearers Response or a change notification response (Change) Notification Response).
  • the reply message can also be another response.
  • the MME receives the response message sent by the C-GW, and the response message carries the location area identifier list of the UE.
  • Step 407 The MME processes the location area identifier list according to the service area of the MME.
  • the location area identifier list includes a location area that is not in the service area of the MME
  • the location area that is not in the service area of the MME is deleted from the location area identifier list, and the updated location area identifier list is sent.
  • the UE or,
  • the location area included in the location area identifier list is in the service area of the MME, the location area identifier list is directly sent to the UE.
  • Step 408 The MME sends the processed location area identifier list to the UE, and the UE receives and saves the location area identifier list sent by the MME.
  • the MME may send the location area identifier list to the UE by using an attach accept message or a location update accept message.
  • the MME may send the location area identifier list to the UE by using a Globally Unique Temporary Identity re-allocation message (GUTI Relocation Command).
  • GUI Relocation Command Globally Unique Temporary Identity re-allocation message
  • the embodiment of the present invention allocates a location area identifier list to the UE in the foregoing manner, and the location area in the location area identifier list is in the service area of the U-GW of the serving UE, so that the UE does not move within the location area identifier list.
  • the service area of the U-GW is removed, and when the UE moves out of the service area of the U-GW, the location area in the location area identifier list must also be removed, so the TAU procedure is initiated; in addition, the above manner also ensures that the UE is in the location.
  • the UE is always in the service area of the U-GW serving the UE. Therefore, the U-GW of the serving UE is always the optimal U-GW of the current location of the UE, and the user service experience is guaranteed.
  • FIG. 6 is a flowchart of a method for allocating location information according to an embodiment of the present invention.
  • the location information allocation action of the UE in the method is performed by the MME. As shown in FIG. 6, the method includes the following steps.
  • Step 501 The UE sends an attach request or a location update request or a packet data network connection request to the MME, and the MME receives an attach request or a location update request or a packet data network connection request sent by the UE.
  • the MME receives the attach request or the location update request or the packet data network connection request, and starts the location information allocation process of the UE.
  • step 501 can be the same as step 401 in the embodiment shown in FIG.
  • Step 502 The MME sends the location information of the UE to the C-GW, where the C-GW receives the location information of the UE sent by the MME.
  • step 502 can be the same as step 402 in the embodiment shown in FIG.
  • Step 503 The C-GW determines the U-GW serving the UE according to the location information of the UE.
  • Step 504 The C-GW acquires service area information of the serving U-GW of the UE.
  • the specific implementation of the step 503 is the same as the step 403 in the embodiment shown in FIG. 5.
  • the specific implementation of the step 504 can be the same as the step 404 in the embodiment shown in FIG.
  • Step 505 The C-GW sends the service area information of the U-GW to the MME, and the MME receives the service area information of the U-GW sent by the C-GW.
  • the C-GW may send the service area information of the U-GW to the MME by using a response message, where the response message carries the service area information of the U-GW.
  • the response message is a Create Session Response or a Modify Bearer Response or a Modify Access Bearers Response or a Change Notification Response.
  • the reply message can also be another response.
  • the MME receives the response message sent by the C-GW, and the response message carries the service area information of the U-GW.
  • the C-GW determines that there is only one U-GW serving the UE, the C-GW directly sends the service area information of the U-GW to the MME in step 505.
  • the C-GW may first process the service area information of more than one U-GW in step 505, and process the processed U-GW service area. The information is sent to the MME.
  • the C-GW processes the service area information of more than one U-GW in the following manner:
  • the service area information of more than one U-GW is processed according to the configuration policy.
  • the three U-GWs determined by the C-GW are respectively U-GW1, U-GW2, and U-GW3, and the service area information of the three U-GWs is: the service area information of the U-GW1 ⁇ TA1, TA2, TA3 ⁇ ; service area information of U-GW2 ⁇ TA2, TA3, TA4 ⁇ ; service area information of U-GW3 ⁇ TA2, TA3, TA5 ⁇ .
  • the configuration policy in the C-GW can be any of the following three types:
  • the service area information of the U-GW sent by the C-GW to the MME is ⁇ TA1, TA2, TA3, TA4, TA5 ⁇ ; according to the configuration policy (2), the C-GW sends the U- to the MME.
  • the service area information of the GW is ⁇ TA2, TA3 ⁇ ; according to the configuration policy (3), the service area information of the U-GW sent by the C-GW to the MME may be ⁇ TA1, TA2, TA3 ⁇ or ⁇ TA1, TA4, TA5 ⁇ .
  • the configuration policy is not limited to the above three types, and may be, for example, a location area identifier set in any one of the U-GW service area information.
  • the C-GW may directly send the service area information of more than one U-GW to the MME, and the MME processes the service area information of more than one U-GW. Then, the UE is assigned a location area identifier list according to the processed service area information of more than one U-GW.
  • the process of the MME processing the service area information of more than one U-GW may be the same as the process of the C-GW processing the service area information of more than one U-GW.
  • Step 506 The MME allocates a location area identifier list to the UE within the range of the service area information of the U-GW according to the location information of the UE.
  • the process in which the MME allocates the location area identifier list to the UE is the same as the C-GW allocates the location area identifier list to the UE in the embodiment shown in FIG. 5, and details are not described herein again.
  • Step 507 The MME sends the location area identifier list allocated to the UE to the UE, and the UE receives and saves the location area identifier list sent by the MME.
  • the MME may send the location area identifier list to the UE by using an attach accept message or a location update accept message.
  • the MME may send the location area identifier list to the UE by using a global unique temporary identifier re-allocation message.
  • the embodiment of the present invention allocates a location area identifier list to the UE in the foregoing manner, and the location area in the location area identifier list is in the service area of the U-GW of the serving UE, so that the UE does not move within the location area identifier list.
  • the service area of the U-GW is removed, and when the UE moves out of the service area of the U-GW, the location area in the location area identifier list must also be removed, so the TAU procedure is initiated; in addition, the above manner also ensures that the UE is in the location.
  • UE when moving in the area identification list It is always in the service area of the U-GW that serves the UE. Therefore, the U-GW of the serving UE is always the optimal U-GW of the current location of the UE, which ensures the user service experience.
  • FIG. 7 is a block diagram of a location information distribution apparatus according to an embodiment of the present invention.
  • the location information distribution apparatus can be implemented as all or part of the C-GW by software, hardware, or a combination of both.
  • the location information distribution apparatus may include an acquisition unit 601, a processing unit 602, and a transmission unit 603.
  • the obtaining unit 601 is configured to acquire location information of the UE.
  • the processing unit 602 is configured to determine, according to location information of the UE acquired by the acquiring unit, a location area identifier list allocated to the UE, where the location area in the location area identifier list is in a service area of the U-GW serving the UE;
  • the sending unit 603 is configured to send the location area identifier list determined by the processing unit to the MME of the serving UE, so that the MME sends the location area identifier list to the UE.
  • the embodiment of the present invention allocates a location area identifier list to the UE in the foregoing manner, and the location area in the location area identifier list is in the service area of the U-GW of the serving UE, so that the UE does not move within the location area identifier list.
  • the service area of the U-GW is removed, and when the UE moves out of the service area of the U-GW, the location area in the location area identifier list must also be removed, so the TAU procedure is initiated; in addition, the above manner also ensures that the UE is in the location.
  • the U-GW of the serving UE is the optimal U-GW of the UE, which ensures the user service experience.
  • the obtaining unit 601 is configured to:
  • the request message carries location information of the UE, and the request message is a request to create a session or modify a bearer request or modify an access bearer request or a change notification request.
  • the location information of the UE is a registration location area that the UE last accessed or a location area where the UE is currently located.
  • processing unit 602 is configured to:
  • the location area identifier list is allocated to the UE within the range of the service area information of the U-GW according to the location information of the UE.
  • processing unit 602 is configured to:
  • processing unit 602 is configured to:
  • the U-GW is determined according to the location information of the UE.
  • the processing unit 602 is further configured to:
  • the service area information of more than one U-GW is obtained from the configuration data.
  • processing unit 602 is further configured to:
  • the location area identifier list is allocated to the UE within the range of service area information of more than one U-GW according to the location information of the UE.
  • processing unit 602 is configured to:
  • the UE is assigned a location area identity list within a service area of any one of the more than one U-GW.
  • FIG. 8 is a block diagram of a location information distribution apparatus according to an embodiment of the present invention.
  • the location information distribution apparatus can be implemented as all or part of the MME by software, hardware, or a combination of both.
  • the location information distribution apparatus may include an acquisition unit 701, a processing unit 702, and a transmission unit 703.
  • the obtaining unit 701 is configured to obtain a location area identifier list of the UE that is sent by the C-GW of the serving UE, where the location area identifier list is determined by the C-GW according to the location information of the UE, and the location area in the location area identifier list is in the serving UE.
  • the location area identifier list is determined by the C-GW according to the location information of the UE, and the location area in the location area identifier list is in the serving UE.
  • the processing unit 702 is configured to process, according to the service area of the MME, the location area identifier list acquired by the obtaining unit 701;
  • the sending unit 703 is configured to send the location area identifier list processed by the processing unit 702 to the UE.
  • the embodiment of the present invention allocates a location area identifier list to the UE in the foregoing manner, and the location area in the location area identifier list is in the service area of the U-GW of the serving UE, so that the UE does not move within the location area identifier list.
  • the service area of the U-GW is removed, and when the UE moves out of the service area of the U-GW, the location area in the location area identifier list must also be removed, so the TAU procedure is initiated; in addition, the above manner also ensures that the UE is in the location.
  • the U-GW of the serving UE is the optimal U-GW of the UE, which ensures the user service experience.
  • processing unit 702 is configured to:
  • the location area identifier list includes a location area that is not in the service area of the MME, the location area that is not in the service area of the MME is deleted from the location area identifier list, and the updated location area identifier list is sent to the UE; or ,
  • the location area identifier list is sent to the UE.
  • the sending unit 703 is further configured to:
  • the location information of the UE is sent to the C-GW.
  • the location information of the UE is a registration location area that the UE last accessed or a location area where the UE is currently located.
  • the location information distribution apparatus provided in the foregoing embodiment is only exemplified by the division of each functional unit in the allocation of the location information. In actual applications, the functions may be allocated by different functional units as needed. Completion, that is, the internal structure of the device is divided into different functional units to complete all or part of the functions described above.
  • the location information distribution apparatus and the location information distribution method embodiment provided by the foregoing embodiments are in the same concept, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种位置信息分配方法、装置及设备,属于通信技术领域。所述方法包括:获取用户设备的位置信息;根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;将位置区域标识列表发送给移动管理网元,以使所述移动管理网元将所述位置区域标识列表发送给所述用户设备。采用上述方式分配给用户设备的位置区域标识列表,适用于分布式网关架构的网络。

Description

一种位置信息分配方法、装置及设备 技术领域
本发明涉及通信技术领域,特别涉及一种位置信息分配方法、装置及设备。
背景技术
在现有演进分组系统(Evolved Packet System,EPS)网络架构下,用户设备(User Equipment,UE)的位置信息的分配主要是指跟踪区域标识列表(Tracking Area Identity List,TAI List)的分配,网络侧通过给UE分配合适的TAI List,实现网络侧对UE的位置管理。
目前,EPS网络中TAI List的分配采用如下方式:移动管理实体(Mobility Management Entity,MME)在附着或位置更新过程中,根据UE上报的上次访问的注册TAI(Last Visited Registered TAI)以及UE当前实际所在的TAI信息来分配一个合适的TAI List给UE,分配的TAI List中的TA均在MME与服务网关(Serving Gateway,S-GW)的服务区域内,从而尽量减少因为UE的移动而产生的跟踪区域更新(Tracking Area Update,TAU)信令负荷。其中,MME主要负责UE的会话管理,身份认证,接入控制,S-GW则主要负责UE的数据转发。
但是,上述分配方式并不适用于分布式网关(Distributed Gateway,D-GW)架构。由于分布式网关架构中,用户面网关(User plane Gateway,U-GW)的服务区域会远小于MME的服务区域,故MME按照现有分配方法分配给UE的TAI List可能大于一个U-GW的服务区域,从而导致UE在TAI List内移动时,不会发起TAU流程,但是UE实际上可能已经移出了当前服务U-GW的服务区域,而进入了另一个U-GW的服务区域。由于没有发起TAU流程,UE的用户面始终通过原来的U-GW进行数据传输,造成传输路径延长,往返路由时间(Round-Trip Time,RTT)增加等问题,从而影响用户体验。
发明内容
为了解决现有位置信息分配方法在应用于分布式网关架构时,UE在TAI List内移动且移出了当前U-GW的服务区域时,不会发起TAU流程的问题, 本申请提供了一种位置信息分配方法、装置及设备。
第一方面,提供了一种位置信息分配方法,所述方法包括:
获取用户设备的位置信息;
根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
将所述位置区域标识列表发送给服务所述用户设备的移动管理网元,以使所述移动管理网元将所述位置区域标识列表发送给所述用户设备。
控制面网关通过上述方式为用户设备分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务用户设备的用户面网关的服务区域内,使得用户设备在该位置区域标识列表内移动时,不会移出用户面网关的服务区域,而当用户设备移出该用户面网关的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起位置区域更新流程;另外,上述方式还保证了用户设备在位置区域标识列表中移动时,用户设备一直处于服务用户设备的用户面网关的服务区域内,因此该服务用户设备的用户面网关为用户设备的最优用户面网关,保证了用户业务体验。
结合第一方面,在第一方面的第一实现方式中,所述获取用户设备的位置信息,包括:
接收所述移动管理网元发送的请求消息,所述请求消息携带所述用户设备的位置信息,所述请求消息为创建会话请求或修改承载请求或修改接入承载请求或改变通知请求。
在该实现方式中,控制面网关通过创建会话请求或修改承载请求或修改接入承载请求或改变通知请求接收控制面网关发送的用户设备的位置信息,避免了采用新的消息进行传输,节省了传输资源。
结合第一方面或第一方面的第一实现方式,在第一方面的第二实现方式中,所述用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域。
用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域,控制面网关分配给用户设备的位置区域标识列表是根据用户设备出现过的位置(用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域)分配的,使得为用户设备分配的位置区域标识列表 的精度更高。
结合第一方面或第一方面的第一实现方式或第一方面的第二实现方式,在第一方面的第三实现方式中,所述根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,包括:
获取所述用户面网关的服务区域信息;
根据所述用户设备的位置信息,在所述用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表。
控制面网关先获取用户面网关的服务区域信息,然后在用户面网关的服务区域信息的范围内为用户设备分配位置区域标识列表,保证分配到的用户设备分配的位置区域标识列表在用户面网关的服务区域内。
可选地,位置区域标识列表中的位置区域除了要在用户面网关的服务区域内之外,位置区域标识列表中的位置区域还要是用户设备当前所在的位置区域(或用户设备上次访问的注册位置区域),或者位于用户设备当前所在的位置区域(或用户设备上次访问的注册位置区域)周围的设定范围内的位置区域中的部分或全部,使得分配给用户设备的位置区域标识列表是根据用户设备出现过的位置分配的,保证了分配给用户设备的位置区域标识列表的精度。
结合第一方面的第三实现方式,在第一方面的第四实现方式中,所述获取所述用户面网关的服务区域信息,包括:
向所述用户面网关发送信息请求消息,并接收所述用户面网关根据所述信息请求消息发送的所述用户面网关的服务区域信息;或者,
从配置数据中获取所述用户面网关的服务区域信息。
控制面网关在获取用户面网关的服务区域信息时,既可以即时性地通过信息请求消息从用户面网关获得用户面网关的服务区域信息,还可以通过存储在本地的配置数据来查找事先存储的用户面网关的服务区域信息。
结合第一方面的第三实现方式或第四实现方式,在第一方面的第五实现方式中,在所述获取所述用户面网关的服务区域信息之前,所述根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,还包括:
根据所述用户设备的位置信息确定所述用户面网关。
控制面网关在获取用户面网关的服务区域信息前,需要根据用户设备的位置确定优选的用户面网关,然后获取该优选的用户面网关的服务区域信息,保证后续分配给用户设备的位置区域标识列表也是优选的。
结合第一方面的第三实现方式至第五实现方式的任意一个,在第一方面的第六实现方式中,当所述用户面网关包括多于一个用户面网关时,所述获取所述用户面网关的服务区域信息,还包括:
向所述多于一个用户面网关发送请求消息,并接收所述多于一个用户面网关根据所述请求消息发送的所述多于一个用户面网关的服务区域信息;或者
从配置数据中获取所述多于一个用户面网关的服务区域信息。
结合第一方面的第六实现方式,在第一方面的第七实现方式中,所述根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,还包括:
根据所述用户设备的位置信息,在所述多于一个用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表。
结合第一方面的第七实现方式,在第一方面的第八实现方式中,所述在所述多于一个用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表,包括:
在所述多于一个用户面网关的服务区域的所有合并区域内为所述用户设备分配所述位置区域标识列表;或者,
在所述多于一个用户面网关的服务区域的交叉区域内为所述用户设备分配所述位置区域标识列表;或者,
在所述多于一个用户面网关的服务区域的任一合并区域内为所述用户设备分配所述位置区域标识列表;或者,
在所述多于一个用户面网关中的任意一个用户面网关的服务区域内为所述用户设备分配所述位置区域标识列表。
可选地,控制面网关可以先根据多于一个用户面网关的服务区域信息进行筛选组合,确定多于一个用户面网关的服务区域的所有合并区域的信息(或者上述实现方式中的其他区域),然后根据多于一个用户面网关的服务区域的所有合并区域的信息(或者上述实现方式中的其他区域)为所述用户设备分配所述位置区域标识列表。
第二方面,提供了一种位置信息分配方法,所述方法包括:
获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表,所述位置区域标识列表是所述控制面网关根据所述用户设备的位置信息确 定的,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
根据移动管理网元的服务区域对所述位置区域标识列表进行处理,并将处理后的所述位置区域标识列表发送给所述用户设备。
移动管理网元通过上述方式为用户设备分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务用户设备的用户面网关的服务区域内,使得用户设备在该位置区域标识列表内移动时,不会移出用户面网关的服务区域,而当用户设备移出该用户面网关的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起位置区域更新流程;另外,上述方式还保证了用户设备在位置区域标识列表中移动时,用户设备一直处于服务用户设备的用户面网关的服务区域内,因此该服务用户设备的用户面网关为用户设备的最优用户面网关,保证了用户业务体验。
结合第二方面,在第二方面的第一实现方式中,所述根据移动管理网元的服务区域对所述位置区域标识列表进行处理,并将处理后的所述位置区域标识列表发送给所述用户设备,包括:
若所述位置区域标识列表中包含有不在所述移动管理网元的服务区域内的位置区域,将所述不在所述移动管理网元的服务区域内的位置区域从所述位置区域标识列表中删除,并将更新后的所述位置区域标识列表发送给所述用户设备;或者
若所述位置区域标识列表中包含的位置区域都在所述移动管理网元的服务区域内,将所述位置区域标识列表发送给所述用户设备。
移动管理网元可以接收控制面网关直接发送的用户设备的位置区域标识列表,在接收控制面网关直接发送的用户设备的位置区域标识列表后,移动管理网元确定接收到的用户设备的位置区域标识列表中是否存在不属于移动管理网元的服务区域内的位置区域,如果存在则删除掉,这样做可以确保发送给用户设备的位置区域标识列表均在移动管理网元的服务区域内,方便移动管理网元的管理。
结合第二方面或者第二方面的第一实现方式,在第二方面的第二实现方式中,在所述获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表之前,所述方法还包括:
将所述用户设备的位置信息发送给所述控制面网关。
移动管理网元在获取服务用户设备的控制面网关发送的用户设备的位置区域标识列表之前,需要向控制面网关发送用户设备的位置信息,使得控制面网关可以根据用户设备的位置信息,确定用户设备的位置区域标识列表,然后发送给移动管理网元。
结合第二方面的第二实现方式,在第二方面的第三实现方式中,所述用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域。
可选地,移动管理网元接收所述用户设备发送的附着请求或位置更新请求,所述附着请求或位置更新请求中包括所述用户设备上次访问的注册位置区域标识;
获取所述附着请求或位置更新请求中的所述用户设备上次访问的注册位置区域标识。
移动管理网元通过用户设备发送的附着请求或位置更新请求来传输用户设备上次访问的注册位置区域标识,避免采用新的消息获取用户设备上次访问的注册位置区域标识的传输,节省了传输资源。
可选地,移动管理网元接收基站上报的所述用户设备的位置信息,移动管理网元通过基站上报获得用户设备的位置信息。
第三方面,提供了一种位置信息分配装置,所述装置包括若干单元,比如获取单元、处理单元和发送单元,所述若干单元用于实现第一方面提供的方法。
第四方面,提供了一种位置信息分配装置,所述装置包括若干单元,比如获取单元、处理单元和发送单元,所述若干单元用于实现第二方面提供的方法。
第五方面,提供了一种位置信息分配设备,所述位置信息分配设备包括处理器、存储器以及通信接口;所述存储器用于存储软件程序以及模块,所述处理器通过运行或执行存储在所述存储器内的软件程序和/或模块实现:
获取用户设备的位置信息;
根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
将所述位置区域标识列表通过所述通信接口发送给服务所述用户设备的移动管理网元,以使所述移动管理网元将所述位置区域标识列表发送给所述用户设备。
第六方面,提供了一种位置信息分配设备,所述位置信息分配设备包括处理器、存储器以及通信接口;所述存储器用于存储软件程序以及模块,所述处理器通过运行或执行存储在所述存储器内的软件程序和/或模块实现:
获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表,所述位置区域标识列表是所述控制面网关根据所述用户设备的位置信息确定的,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
根据移动管理网元的服务区域对所述位置区域标识列表进行处理,并通过所述通信接口将处理后的所述位置区域标识列表发送给所述用户设备。
第七方面,提供了一种计算机可读存储介质,该计算机可读存储介质用于存储前述处理器在分配位置信息时所执行的程序代码。该程序代码包括用于实现第一方面提供的方法的指令。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,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是本发明实施例提供的分布式网关架构示意图;
图2是本发明实施例提供的C-GW的结构示意图;
图3是本发明实施例提供的一种位置信息分配方法的流程图;
图4是本发明实施例提供的另一种位置信息分配方法的流程图;
图5是本发明实施例提供的另一种位置信息分配方法的流程图;
图6是本发明实施例提供的另一种位置信息分配方法的流程图;
图7是本发明实施例提供的一种位置信息分配装置的结构示意图;
图8是本发明实施例提供的另一种位置信息分配装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明实施方式作进一步地详细描述。
为便于对本发明实施例提供的技术方案的理解,首先结合图1介绍一下分布式网关架构。分布式网关架构是基于网络功能控制面与用户面分离的思想,在已有的EPS网络架构上提出的一种增强网络架构。如图1所示,分布式网关架构中包括控制面网关(Control plane Gateway,C-GW)与U-GW。C-GW是一种集中式控制面网关,集成了现有EPS网络中S-GW与分组数据网络网关(Packet Data Network Gateway,P-GW)控制面的功能,用来专门处理EPS网络中的控制面信令,包括移动性管理,会话管理,地址管理,路径管理,计费管理等功能。U-GW是一种分布式用户面网关,集成了现有EPS网络中S-GW与P-GW用户面的功能,用来专门处理3GPP EPS网络中的用户面数据,包括路由转发、数据包检查、数据包统计以及服务质量执行等功能。C-GW通过与U-GW之间的交互实现对用户面数据处理的控制与管理,U-GW则在C-GW的控制管理下实现对用户面数据的处理。需要说明的是,对于一个UE,任何时刻只有一个C-GW为它服务,但是可以同时有多个U-GW为它服务,为UE服务的C-GW可以称为服务UE的C-GW,也可以称为UE的服务C-GW;为UE服务的U-GW可以称为服务UE的U-GW,也可以称为UE的服务U-GW。
U-GW与C-GW可以采用S18接口连接,S18接口可以重用S-GW与P-GW之间的接口协议,比如:通用分组无线服务技术隧道协议(GPRS Tunelling Protocol,GTP),也可以是其它接口协议或新定义的协议,本发明对此不做限定。需要说明的是,这里S18接口只是U-GW与C-GW之间接口的一种命名方式,该接口也可以命名为其它名称,例如S15或S20,本发明对此不做限定。
该分布式网关架构还包括UE和MME,UE通过演进的通用移动通信系统陆地无线接入网(Evolved UMTS Territorial Radio Access Network,E-UTRAN)与MME及U-GW连接。MME具有负责会话管理,身份认证,接入控制等功能。
本发明中,MME和C-GW还可以用于负责UE的位置信息的分配。
本发明所涉及到的UE可以包括具有无线通信功能的手持设备、车载设备、 可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备,以及各种形式的UE,移动台(Mobile station,简称MS),终端(terminal),终端设备(Terminal Equipment)等等。为方便描述,本发明中,简称为UE。
除此之外,该分布式网关架构中还包括常见EPS网络架构中的网络设备和网络,如归属签约用户服务器(Home Subscriber Server,HSS),该分布式网关架构中的网络设备及网络均可采用现有EPS网络中的方式进行连接。
在本发明的分布式网关架构中,U-GW可以根据业务需要进行按需分布式部署,实现UE的本地接入,从而缩短UE的用户面数据的RTT,提升用户体验。在部署时,U-GW的位置与常见EPS网络架构中的P-GW相比,位置更靠近UE的城域网甚至基站控制器,随着U-GW的位置的变化,其服务区域比EPS网络架构中的MME的服务区域要小很多,从而增大了UE移动过程中U-GW改变的概率。
若MME仍然采用根据UE当前所处的TA的TAI信息为UE分配位置区域标识列表,而不考虑U-GW的服务区域,那么分配给UE的位置区域标识列表中将很可能存在当前为UE提供服务的U-GW的服务区域以外的TA,在这种情况下,若UE移出当前服务U-GW的服务区域进入另一TA,且该另一TA存在于位置区域标识列表中但属于另一U-GW的服务区域(即不属于当前为UE提供服务的U-GW的服务区域),那么UE将不会发起TAU流程,仍然采用当前为UE提供服务的U-GW进行用户面的数据传输,而此时,该另一U-GW更靠近UE,可以为UE提供更好的服务,但是UE却无法使用。故此,本发明提供了一种位置信息的分配方法,能够确保分配给UE的位置区域标识列表中的所有TA都位于当前为UE提供服务的U-GW的服务区域以内,这样,一旦UE移出当前为UE提供服务的U-GW的服务区域,就会发起TAU流程,并在该流程中实现U-GW的重新选择,选择更靠近UE的U-GW(即前述另一U-GW)为UE提供服务,确保RTT的最优化,从而保证用户体验。需要说明的是,在基于EPS网络增强的分布式网关架构中,该位置区域标识列表即为跟踪区域标识列表TAI List。
图2为图1示出的C-GW的一种可能的硬件结构示意图。如图2所示,C-GW包括处理器10、存储器20以及通信接口30。本领域技术人员可以理解,图2中示出的结构并不构成对该C-GW的限定,可以包括比图示更多或更少的 部件,或者组合某些部件,或者不同的部件布置。其中:
处理器10是C-GW的控制中心,利用各种接口和线路连接整个C-GW的各个部分,通过运行或执行存储在存储器20内的软件程序和/或模块,以及调用存储在存储器20内的数据,执行C-GW的各种功能和处理数据,从而对C-GW进行整体控制。处理器10可以由CPU实现,也可以由有控制面功能的网络处理器(英文:network processor,缩写:NP)实现。
存储器20可用于存储软件程序以及模块。处理器10通过运行存储在存储器20的软件程序以及模块,从而执行各种功能应用以及数据处理。存储器20可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统21、获取模块22、处理模块23、发送模块24和至少一个功能所需的应用程序25(比如位置区域标识列表分配等)等;存储数据区可存储根据C-GW的使用所创建的数据(比如UE的位置信息等)等。存储器20可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(英文:Static Random Access Memory,简称:SRAM),电可擦除可编程只读存储器(英文:Electrically Erasable Programmable Read-Only Memory,简称:EEPROM),可擦除可编程只读存储器(英文:Erasable Programmable Read Only Memory,简称:EPROM),可编程只读存储器(英文:Programmable Read-Only Memory,简称:PROM),只读存储器(英文:Read Only Memory,简称:ROM),磁存储器,快闪存储器,磁盘或光盘。相应地,存储器20还可以包括存储器控制器,以提供处理器10对存储器20的访问。
其中,处理器20通过运行获取模块22执行以下功能:获取UE的位置信息;处理器20通过运行处理模块23执行以下功能:根据UE的位置信息,确定分配给UE的位置区域标识列表,位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内;处理器20通过运行发送模块24执行以下功能:通过通信接口30将位置区域标识列表发送给服务UE的MME,以使MME将位置区域标识列表发送给UE。
图1中示出的MME的一种可能的硬件结构示意图可以与图2示出的C-GW的结构相同。其中,MME的处理器20通过运行获取模块22执行以下功能:获取服务UE的C-GW发送的UE的位置区域标识列表,位置区域标识列表是C-GW根据UE的位置信息确定的,位置区域标识列表中的位置区域在 服务UE的U-GW的服务区域内;处理器20通过运行处理模块23执行以下功能:根据MME的服务区域对位置区域标识列表进行处理;处理器20通过运行发送模块24执行以下功能:通过通信接口30将处理后的位置区域标识列表发送给UE。
图3是本发明实施例提供的一种位置信息分配方法的流程图。该方法可以由前述分布式网关架构中的C-GW执行,如图3所示,该方法包括如下步骤。
步骤201:获取UE的位置信息。
步骤202:根据UE的位置信息,确定分配给UE的位置区域标识列表,位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内。
步骤203:将位置区域标识列表发送给MME,以使MME将位置区域标识列表发送给UE。
本发明实施例中,C-GW通过上述方式为UE分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内,使得UE在该位置区域标识列表内移动时,不会移出U-GW的服务区域,而当UE移出该U-GW的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起TAU流程;另外,上述方式还保证了UE在位置区域标识列表中移动时,UE一直处于服务UE的U-GW的服务区域内,因此该服务UE的U-GW始终为UE当前位置的最优U-GW,保证了用户业务体验。
图4是本发明实施例提供的一种位置信息分配方法的流程图。该方法可以由前述分布式网关架构中的MME执行,如图4所示,该方法包括如下步骤。
步骤301:获取服务UE的C-GW发送的UE的位置区域标识列表,位置区域标识列表是C-GW根据UE的位置信息确定的,位置区域标识列表的位置区域在服务UE的U-GW的服务区域内。
步骤302:根据MME的服务区域对位置区域标识列表进行处理,并将处理后的位置区域标识列表发送给UE。
本发明实施例中,MME通过上述方式为UE分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内,使得UE在该位置区域标识列表内移动时,不会移出U-GW的服务区域,而当UE移出该U-GW的服务区域时,必然也移出了位置区域标识列表中的位置区域, 所以会发起TAU流程;另外,上述方式还保证了UE在位置区域标识列表中移动时,UE一直处于服务UE的U-GW的服务区域内,因此该服务UE的U-GW始终为UE当前位置的最优U-GW,保证了用户业务体验。
图5是本发明实施例提供的一种位置信息分配方法的流程图。该方法中UE的位置信息分配动作由C-GW执行,如图5所示,该方法包括如下步骤。
步骤401:UE向MME发送附着请求或者位置更新请求或分组数据网络连接请求,MME接收UE发送的附着请求或者位置更新请求或分组数据网络(Packet Data Network,PDN)连接请求。MME接收到附着请求或者位置更新请求或分组数据网络连接请求,即开启UE的位置信息分配流程。该步骤为现有技术。
可选地,如果UE存储有上次访问的注册位置区域标识,例如:上次访问的注册TAI(Last Visited Registered TAI),则UE可以在附着请求或位置更新请求中包括UE上次访问的注册位置区域标识,发送给MME。
可选地,分组数据网络连接请求可以包括接入点名称(Access Point Name,APN)。
步骤402:MME将UE的位置信息发送给C-GW,C-GW接收MME发送的UE的位置信息。
可选地,UE的位置信息为UE上次访问的注册位置区域或UE当前所在的位置区域。其中,位置区域包括但不限于是TA、位置区域(Location Area,LA)、路由区域(Routing Area,RA)。
可选地,MME可以通过发送请求消息将UE的位置信息发送给C-GW,该请求消息携带UE的位置信息。可选地,请求消息为创建会话请求(Create Session Request)或修改承载请求(Modify Bearer Request)或修改接入承载请求(Modify Access Bearers Request)或改变通知请求(Change Notification Request)。可替换地,该请求消息也可以是其他请求。
对应地,C-GW接收MME发送的请求消息,请求消息携带UE的位置信息。
可选地,在步骤402之前,该方法还包括MME获取UE当前所在的位置区域。
可选地,MME获取UE当前所在的位置区域可以包括:接收UE当前接入 的基站上报的UE当前所在的位置区域。这个上报机制是现有技术。
MME获取UE的位置信息还可以包括:接收UE发送的附着请求或者位置更新请求,从附着请求或者位置更新请求中获取UE上次访问的注册位置区域。
或者,MME从存储器中获取UE的位置信息,该位置信息可以是事先接收后存储在存储器中的。
可选地,如果MME接收的是分组数据网络连接请求,MME还将分组数据网络连接请求中的接入点名称APN发送给C-GW。
步骤403:C-GW根据UE的位置信息确定服务UE的U-GW。
可选地,若步骤402中C-GW接收到MME发送的APN,则C-GW根据UE的位置信息和APN确定服务UE的U-GW,若该APN与UE已有的PDN连接的APN不同,则MME确定的服务U-GW与UE已有的PDN连接的服务U-GW可能不同,从而该UE同时有多于一个的服务U-GW,UE的服务C-GW可以获知该UE当前服务U-GW的数量。
步骤404:C-GW获取UE的服务U-GW的服务区域信息。
其中,C-GW获取该U-GW的服务区域信息的一种可选实施方式为,从配置数据中获取U-GW的服务区域信息,C-GW无需发送请求消息给服务U-GW。
另一种可选实施方式为,C-GW向该U-GW发送请求消息,请求U-GW将服务区域信息发送给C-GW;服务U-GW根据该请求消息,将自身的服务区域信息在应答消息中发送给C-GW。该请求消息可以为创建会话请求(Create Session Request)或修改承载请求(Modify Bearer Request)或修改接入承载请求(Modify Access Bearers Request),也可以是其它的请求消息,不做限定。对应地,该应答消息可以为创建会话应答(Create Session Response)或修改承载应答(Modify Bearer Response)或修改接入承载应答(Modify Access Bearers Response),也可以是其它的应答消息,不做限定。
可选地,上述C-GW获取U-GW的服务区域信息既可以是获取一个U-GW的服务区域信息,也可以是获取多于一个U-GW的服务区域信息。
类似地,C-GW获取多于一个U-GW的服务区域信息的一种可选实施方式为,从配置数据中获取多于一个U-GW的服务区域信息,C-GW无需发送请求消息给服务U-GW。
另一种可选实施方式如图5所示,C-GW向每个U-GW发送请求消息,请求U-GW将服务区域信息发送给C-GW;服务U-GW根据该请求消息,将自 身的服务区域信息在应答消息中发送给C-GW。该请求消息可以为创建会话请求(Create Session Request)或修改承载请求(Modify Bearer Request)或修改接入承载请求(Modify Access Bearers Request)。可替换地,该请求消息也可以是其他请求。对应地,该应答消息可以为创建会话应答(Create Session Response)或修改承载应答(Modify Bearer Response)或修改接入承载应答(Modify Access Bearers Response)。可替换地,该应答消息也可以是其他应答。
可选地,U-GW的服务区域信息可以包括一个或多个位置区域标识,例如U-GW的服务区域可以是{TA1、TA2、TA3}。
步骤405:C-GW根据UE的位置信息,在U-GW的服务区域信息的范围内为UE分配位置区域标识列表。
当C-GW确定只有一个服务UE的U-GW时,步骤405中C-GW直接在这一个U-GW的服务区域信息的范围内为UE分配位置区域标识列表即可。
而当C-GW确定有多于一个服务UE的U-GW时,步骤405中C-GW在多于一个U-GW的服务区域信息的范围内为UE分配位置区域标识列表。
可选地,在多于一个U-GW的服务区域信息的范围内为UE分配位置区域标识列表,包括:
在多于一个U-GW的服务区域的所有合并区域内为UE分配位置区域标识列表;或者,
在多于一个U-GW的服务区域的交叉区域内为UE分配位置区域标识列表;或者,
在多于一个U-GW的服务区域的任一合并区域内为UE分配位置区域标识列表;或者,
在多于一个U-GW中的任意一个U-GW的服务区域内为UE分配位置区域标识列表。
可选地,C-GW可以先确定配置策略,根据配置策略将多于一个U-GW的服务区域信息进行筛选组合,以确定多于一个U-GW的服务区域的所有合并区域的信息(或者上述实现方式中的其他区域)。配置策略与多于一个U-GW的服务区域的交叉或者合并区域对应,例如:
多于一个U-GW的服务区域的所有合并区域对应所有U-GW服务区域信息中位置区域标识集合的并集;
多于一个U-GW的服务区域的交叉区域对应所有U-GW服务区域信息中 位置区域标识集合的交集;
多于一个U-GW的服务区域的任一合并区域对应所有U-GW服务区域信息中位置区域标识集合的并集的子集;
多于一个U-GW中的任意一个U-GW的服务区域对应任意一个U-GW服务区域信息中位置区域标识集合。
下面通过举例对根据配置策略将多于一个U-GW的服务区域信息进行筛选组合进行说明:
例如,C-GW确定出的三个U-GW分别为U-GW1、U-GW2、U-GW3,这三个U-GW的服务区域信息分别为:U-GW1的服务区域信息{TA1,TA2,TA3};U-GW2的服务区域信息{TA2,TA3,TA4};U-GW3的服务区域信息{TA2,TA3,TA5}。
C-GW中的配置策略可以为如下三种中的任意一种:
(1)所有U-GW服务区域信息中位置区域标识集合的并集;
(2)所有U-GW服务区域信息中位置区域标识集合的交集;
(3)所有U-GW服务区域信息中位置区域标识集合的并集的子集。
根据配置策略(1),U-GW的服务区域信息为{TA1,TA2,TA3,TA4,TA5};根据配置策略(2),U-GW的服务区域信息为{TA2,TA3};根据配置策略(3),U-GW的服务区域信息可以为{TA1,TA2,TA3}或者{TA1,TA4,TA5}。
可选地,位置区域标识列表中的位置区域除了要在U-GW的服务区域内之外,位置区域标识列表中的位置区域还要是UE当前所在的位置区域(或UE上次访问的注册位置区域),或者位于UE当前所在的位置区域(或UE上次访问的注册位置区域)周围的设定范围内的位置区域中的部分或全部,使得分配给UE的位置区域标识列表是根据UE出现过的位置分配的,保证了分配给UE的位置区域标识列表的精度。
步骤406:C-GW将UE的位置区域标识列表发送给MME,MME接收并获取C-GW发送的UE的位置区域标识列表。
可选地,C-GW可以通过应答消息将UE的位置区域标识列表发送给MME,应答消息携带UE的位置区域标识列表。可选地,应答消息为创建会话应答(Create Session Response)或修改承载应答(Modify Bearer Response)或修改接入承载应答(Modify Access Bearers Response)或改变通知应答(Change  Notification Response)。可替换地,应答消息也可以是其他应答。
对应地,MME接收C-GW发送的应答消息,应答消息携带UE的位置区域标识列表。
步骤407:MME根据MME的服务区域对位置区域标识列表进行处理。
可选地,若位置区域标识列表中包含有不在MME的服务区域内的位置区域,将不在MME的服务区域内的位置区域从位置区域标识列表中删除,并将更新后的位置区域标识列表发送给UE;或者,
若位置区域标识列表中包含的位置区域都在MME的服务区域内,将位置区域标识列表直接发送给UE。
步骤408:MME将处理后的位置区域标识列表发送给UE,UE接收并保存MME发送的位置区域标识列表。
可选地,当步骤401中,MME接收到的是附着请求或者位置更新请求时,MME可以通过附着接受消息或者位置更新接受消息将位置区域标识列表发送给UE。
可选地,当步骤401中,MME接收到的是分组数据网络连接请求时,MME可以通过全局唯一临时标识(Globally Unique Temporary Identity)重分配消息(GUTI Relocation Command)将位置区域标识列表发送给UE。
本发明实施例通过上述方式为UE分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内,使得UE在该位置区域标识列表内移动时,不会移出U-GW的服务区域,而当UE移出该U-GW的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起TAU流程;另外,上述方式还保证了UE在位置区域标识列表中移动时,UE一直处于服务UE的U-GW的服务区域内,因此该服务UE的U-GW始终为UE当前位置的最优U-GW,保证了用户业务体验。
图6是本发明实施例提供的一种位置信息分配方法的流程图。该方法中UE的位置信息分配动作由MME执行,如图6所示,该方法包括如下步骤。
步骤501:UE向MME发送附着请求或者位置更新请求或分组数据网络连接请求,MME接收UE发送的附着请求或者位置更新请求或分组数据网络连接请求。MME接收到附着请求或者位置更新请求或分组数据网络连接请求,开启UE的位置信息分配流程。
步骤501的具体实现方式可以与图5所示实施例中步骤401相同。
步骤502:MME将UE的位置信息发送给C-GW,C-GW接收MME发送的UE的位置信息。
步骤502的具体实现方式可以与图5所示实施例中步骤402相同。
步骤503:C-GW根据UE的位置信息确定服务UE的U-GW。
步骤504:C-GW获取UE的服务U-GW的服务区域信息。
步骤503的具体实现方式可以与图5所示实施例中步骤403相同,步骤504的具体实现方式可以与图5所示实施例中步骤404相同。
步骤505:C-GW将U-GW的服务区域信息发送给MME,MME接收C-GW发送的U-GW的服务区域信息。
可选地,C-GW可以通过应答消息将U-GW的服务区域信息发送给MME,应答消息携带U-GW的服务区域信息。可选地,应答消息为创建会话应答(Create Session Response)或修改承载应答(Modify Bearer Response)或修改接入承载应答(Modify Access Bearers Response)或改变通知应答(Change Notification Response)。可替换地,应答消息也可以是其他应答。
对应地,MME接收C-GW发送的应答消息,应答消息携带U-GW的服务区域信息。
当C-GW确定只有一个服务UE的U-GW时,步骤505中C-GW直接将这一个U-GW的服务区域信息发送给MME即可。
而当C-GW确定有多于一个服务UE的U-GW时,步骤505中C-GW可以先对多于一个U-GW的服务区域信息进行处理,将处理后的U-GW的服务区域信息发送给MME。
可选地,C-GW采用如下方式处理多于一个U-GW的服务区域信息:
确定配置策略,配置策略用于将多于一个U-GW的服务区域信息进行筛选组合;
根据配置策略处理多于一个U-GW的服务区域信息。
例如,C-GW确定出的三个U-GW分别为U-GW1、U-GW2、U-GW3,这三个U-GW的服务区域信息分别为:U-GW1的服务区域信息{TA1,TA2,TA3};U-GW2的服务区域信息{TA2,TA3,TA4};U-GW3的服务区域信息{TA2,TA3,TA5}。
C-GW中的配置策略可以为如下三种中的任意一种:
(1)所有U-GW服务区域信息中位置区域标识集合的并集;
(2)所有U-GW服务区域信息中位置区域标识集合的交集;
(3)各个U-GW服务区域信息中位置区域标识集合的并集的子集。
根据配置策略(1),C-GW发送给MME的U-GW的服务区域信息为{TA1,TA2,TA3,TA4,TA5};根据配置策略(2),C-GW发送给MME的U-GW的服务区域信息为{TA2,TA3};根据配置策略(3),C-GW发送给MME的U-GW的服务区域信息可以为{TA1,TA2,TA3}或者{TA1,TA4,TA5}。
配置策略不限于上述三种,例如还可以是任意一个U-GW服务区域信息中位置区域标识集合。
可替换地,当多于一个U-GW时,C-GW还可以直接将多于一个U-GW的服务区域信息发送给MME,由MME对多于一个U-GW的服务区域信息进行处理,然后根据处理后的多于一个U-GW的服务区域信息为UE分配位置区域标识列表。
可选地,MME处理多于一个U-GW的服务区域信息的过程可以与C-GW处理多于一个U-GW的服务区域信息的过程相同。
步骤506:MME根据UE的位置信息,在U-GW的服务区域信息的范围内为UE分配位置区域标识列表。
MME为UE分配位置区域标识列表的过程与图5所示实施例中C-GW为UE分配位置区域标识列表相同,这里不再赘述。
步骤507:MME将分配给UE的位置区域标识列表发送给UE,UE接收并保存MME发送的位置区域标识列表。
可选地,当步骤501中,MME接收到的是附着请求或者位置更新请求时,MME可以通过附着接受消息或者位置更新接受消息将位置区域标识列表发送给UE。
可选地,当步骤501中,MME接收到的是分组数据网络连接请求时,MME可以通过全局唯一临时标识重分配消息将位置区域标识列表发送给UE。
本发明实施例通过上述方式为UE分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内,使得UE在该位置区域标识列表内移动时,不会移出U-GW的服务区域,而当UE移出该U-GW的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起TAU流程;另外,上述方式还保证了UE在位置区域标识列表中移动时,UE 一直处于服务UE的U-GW的服务区域内,因此该服务UE的U-GW始终为UE当前位置的最优U-GW,保证了用户业务体验。
图7是本发明实施例提供的一种位置信息分配装置的框图。该位置信息分配装置可以通过软件、硬件或者两者的结合实现成为C-GW的全部或者一部分。该位置信息分配装置可以包括:获取单元601、处理单元602和发送单元603。
获取单元601,用于获取UE的位置信息;
处理单元602,用于根据获取单元获取到的UE的位置信息,确定分配给UE的位置区域标识列表,位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内;
发送单元603,用于将处理单元确定出的位置区域标识列表发送给服务UE的MME,以使MME将位置区域标识列表发送给UE。
本发明实施例通过上述方式为UE分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内,使得UE在该位置区域标识列表内移动时,不会移出U-GW的服务区域,而当UE移出该U-GW的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起TAU流程;另外,上述方式还保证了UE在位置区域标识列表中移动时,UE一直处于服务UE的U-GW的服务区域内,因此该服务UE的U-GW为UE的最优U-GW,保证了用户业务体验。
可选地,获取单元601用于:
接收MME发送的请求消息,请求消息携带UE的位置信息,请求消息为创建会话请求或修改承载请求或修改接入承载请求或改变通知请求。
可选地,UE的位置信息为UE上次访问的注册位置区域或UE当前所在的位置区域。
可选地,处理单元602用于:
获取U-GW的服务区域信息;
根据UE的位置信息,在U-GW的服务区域信息的范围内为UE分配位置区域标识列表。
可选地,处理单元602用于:
向U-GW发送信息请求消息,并接收U-GW根据信息请求消息发送的 U-GW的服务区域信息;或者,
从配置数据中获取U-GW的服务区域信息。
可选地,处理单元602用于:
根据UE的位置信息确定U-GW。
可选地,当U-GW包括多于一个U-GW时,获取U-GW的服务区域信息,处理单元602还用于:
向多于一个U-GW发送请求消息,并接收多于一个U-GW根据请求消息发送的多于一个U-GW的服务区域信息;或者
从配置数据中获取多于一个U-GW的服务区域信息。
可选地,处理单元602还用于:
根据UE的位置信息,在多于一个U-GW的服务区域信息的范围内为UE分配位置区域标识列表。
可选地,处理单元602用于:
在多于一个U-GW的服务区域的所有合并区域内为UE分配位置区域标识列表;或者,
在多于一个U-GW的服务区域的交叉区域内为UE分配位置区域标识列表;或者,
在多于一个U-GW的服务区域的任一合并区域内为UE分配位置区域标识列表;或者,
在多于一个U-GW中的任意一个U-GW的服务区域内为UE分配位置区域标识列表。
图8是本发明实施例提供的一种位置信息分配装置的框图。该位置信息分配装置可以通过软件、硬件或者两者的结合实现成为MME的全部或者一部分。该位置信息分配装置可以包括:获取单元701、处理单元702和发送单元703。
获取单元701,用于获取服务UE的C-GW发送的UE的位置区域标识列表,位置区域标识列表是C-GW根据UE的位置信息确定的,位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内;
处理单元702,用于根据MME的服务区域对获取单元701获取到的位置区域标识列表进行处理;
发送单元703,用于将处理单元702处理后的位置区域标识列表发送给 UE。
本发明实施例通过上述方式为UE分配位置区域标识列表,由于位置区域标识列表中的位置区域在服务UE的U-GW的服务区域内,使得UE在该位置区域标识列表内移动时,不会移出U-GW的服务区域,而当UE移出该U-GW的服务区域时,必然也移出了位置区域标识列表中的位置区域,所以会发起TAU流程;另外,上述方式还保证了UE在位置区域标识列表中移动时,UE一直处于服务UE的U-GW的服务区域内,因此该服务UE的U-GW为UE的最优U-GW,保证了用户业务体验。
可选地,处理单元702用于:
若位置区域标识列表中包含有不在MME的服务区域内的位置区域,将不在MME的服务区域内的位置区域从位置区域标识列表中删除,并将更新后的位置区域标识列表发送给UE;或者,
若位置区域标识列表中包含的位置区域都在MME的服务区域内,将位置区域标识列表发送给UE。
可选地,发送单元703,还用于:
在获取服务UE的C-GW发送的UE的位置区域标识列表之前,将UE的位置信息发送给C-GW。
可选地,UE的位置信息为UE上次访问的注册位置区域或UE当前所在的位置区域。
需要说明的是:上述实施例提供的位置信息分配装置在分配位置信息分配时,仅以上述各功能单元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单元完成,即将设备的内部结构划分成不同的功能单元,以完成以上描述的全部或者部分功能。另外,上述实施例提供的位置信息分配装置与位置信息分配方法实施例属于同一构思,其具体实现过程详见方法实施例,这里不再赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本发明的较佳实施例,但本发明的保护范围并不局限于此,任何熟悉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。因此,本发明的保护范围应该以权利要求的保护范围为准。

Claims (28)

  1. 一种位置信息分配方法,其特征在于,所述方法包括:
    获取用户设备的位置信息;
    根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
    将所述位置区域标识列表发送给服务所述用户设备的移动管理网元,以使所述移动管理网元将所述位置区域标识列表发送给所述用户设备。
  2. 根据权利要求1所述的方法,其特征在于,所述获取用户设备的位置信息,包括:
    接收所述移动管理网元发送的请求消息,所述请求消息携带所述用户设备的位置信息,所述请求消息为创建会话请求或修改承载请求或修改接入承载请求或改变通知请求。
  3. 根据权利要求1或2所述的方法,其特征在于,所述用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域。
  4. 根据权利要求1至3任一项所述的方法,其特征在于,所述根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,包括:
    获取所述用户面网关的服务区域信息;
    根据所述用户设备的位置信息,在所述用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表。
  5. 根据权利要求4所述的方法,其特征在于,所述获取所述用户面网关的服务区域信息,包括:
    向所述用户面网关发送请求消息,并接收所述用户面网关根据所述请求消息发送的所述用户面网关的服务区域信息;或者,
    从配置数据中获取所述用户面网关的服务区域信息。
  6. 根据权利要求4或5所述的方法,其特征在于,在所述获取所述用户面网关的服务区域信息之前,所述根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,还包括:
    根据所述用户设备的位置信息确定所述用户面网关。
  7. 根据权利要求4至6任一项所述的方法,其特征在于,当所述用户面网 关包括多于一个用户面网关时,所述获取所述用户面网关的服务区域信息,还包括:
    向所述多于一个用户面网关发送请求消息,并接收所述多于一个用户面网关根据所述请求消息发送的所述多于一个用户面网关的服务区域信息;或者
    从配置数据中获取所述多于一个用户面网关的服务区域信息。
  8. 根据权利要求7所述的方法,其特征在于,所述根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,还包括:
    根据所述用户设备的位置信息,在所述多于一个用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表。
  9. 根据权利要求8所述的方法,其特征在于,所述在所述多于一个用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表,包括:
    在所述多于一个用户面网关的服务区域的所有合并区域内为所述用户设备分配所述位置区域标识列表;或者,
    在所述多于一个用户面网关的服务区域的交叉区域内为所述用户设备分配所述位置区域标识列表;或者,
    在所述多于一个用户面网关的服务区域的任一合并区域内为所述用户设备分配所述位置区域标识列表;或者,
    在所述多于一个用户面网关中的任意一个用户面网关的服务区域内为所述用户设备分配所述位置区域标识列表。
  10. 一种位置信息分配方法,其特征在于,所述方法包括:
    获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表,所述位置区域标识列表是所述控制面网关根据所述用户设备的位置信息确定的,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
    根据移动管理网元的服务区域对所述位置区域标识列表进行处理,并将处理后的所述位置区域标识列表发送给所述用户设备。
  11. 根据权利要求10所述的方法,其特征在于,所述根据移动管理网元的服务区域对所述位置区域标识列表进行处理,并将处理后的所述位置区域标识列表发送给所述用户设备,包括:
    若所述位置区域标识列表中包含有不在所述移动管理网元的服务区域内的位置区域,将所述不在所述移动管理网元的服务区域内的位置区域从所述位置区域标识列表中删除,并将更新后的所述位置区域标识列表发送给所述用户设备;或者,
    若所述位置区域标识列表中包含的位置区域都在所述移动管理网元的服务区域内,将所述位置区域标识列表发送给所述用户设备。
  12. 根据权利要求10或11所述的方法,其特征在于,在所述获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表之前,所述方法还包括:
    将所述用户设备的位置信息发送给所述控制面网关。
  13. 根据权利要求12所述的方法,其特征在于,所述用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域。
  14. 一种位置信息分配装置,其特征在于,所述装置包括:
    获取单元,用于获取用户设备的位置信息;
    处理单元,用于根据所述获取单元获取到的所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
    发送单元,用于将所述位置区域标识列表发送给服务所述用户设备的移动管理网元,以使所述移动管理网元将所述位置区域标识列表发送给所述用户设备。
  15. 根据权利要求14所述的装置,其特征在于,所述获取单元用于:
    接收所述移动管理网元发送的请求消息,所述请求消息携带所述用户设备的位置信息,所述请求消息为创建会话请求或修改承载请求或修改接入承载请求或改变通知请求。
  16. 根据权利要求14或15所述的装置,其特征在于,所述用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域。
  17. 根据权利要求14至16任一项所述的装置,其特征在于,所述处理单元用于:
    获取所述用户面网关的服务区域信息;
    根据所述用户设备的位置信息,在所述用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表。
  18. 根据权利要求17所述的装置,其特征在于,所述处理单元用于:
    向所述用户面网关发送请求消息,并接收所述用户面网关根据所述请求消息发送的所述用户面网关的服务区域信息;或者,
    从配置数据中获取所述用户面网关的服务区域信息。
  19. 根据权利要求17或18所述的装置,其特征在于,所述处理单元用于:
    根据所述用户设备的位置信息确定所述用户面网关。
  20. 根据权利要求17至19任一项所述的装置,其特征在于,当所述用户面网关包括多于一个用户面网关时,所述获取所述用户面网关的服务区域信息,所述处理单元还用于:
    向所述多于一个用户面网关发送请求消息,并接收所述多于一个用户面网关根据所述请求消息发送的所述多于一个用户面网关的服务区域信息;或者
    从配置数据中获取所述多于一个用户面网关的服务区域信息。
  21. 根据权利要求20所述的装置,其特征在于,所述处理单元还用于:
    根据所述用户设备的位置信息,在所述多于一个用户面网关的服务区域信息的范围内为所述用户设备分配所述位置区域标识列表。
  22. 根据权利要求21所述的装置,其特征在于,所述处理单元用于:
    在所述多于一个用户面网关的服务区域的所有合并区域内为所述用户设备分配所述位置区域标识列表;或者,
    在所述多于一个用户面网关的服务区域的交叉区域内为所述用户设备分配所述位置区域标识列表;或者,
    在所述多于一个用户面网关的服务区域的任一合并区域内为所述用户设备分配所述位置区域标识列表;或者,
    在所述多于一个用户面网关中的任意一个用户面网关的服务区域内为所述用户设备分配所述位置区域标识列表。
  23. 一种位置信息分配装置,其特征在于,所述装置包括:
    获取单元,用于获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表,所述位置区域标识列表是所述控制面网关根据所述用户设备 的位置信息确定的,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
    处理单元,用于根据移动管理网元的服务区域对所述获取单元获取到的所述位置区域标识列表进行处理;
    发送单元,用于将所述处理单元处理后的所述位置区域标识列表发送给所述用户设备。
  24. 根据权利要求23所述的装置,其特征在于,所述处理单元用于:
    若所述位置区域标识列表中包含有不在所述移动管理网元的服务区域内的位置区域,将所述不在所述移动管理网元的服务区域内的位置区域从所述位置区域标识列表中删除,并将更新后的所述位置区域标识列表发送给所述用户设备;或者,
    若所述位置区域标识列表中包含的位置区域都在所述移动管理网元的服务区域内,将所述位置区域标识列表发送给所述用户设备。
  25. 根据权利要求23所述的装置,其特征在于,所述发送单元,还用于:
    在所述获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表之前,将所述用户设备的位置信息发送给所述控制面网关。
  26. 根据权利要求25所述的装置,其特征在于,所述用户设备的位置信息为所述用户设备上次访问的注册位置区域或所述用户设备当前所在的位置区域。
  27. 一种位置信息分配设备,其特征在于,所述位置信息分配设备包括处理器、存储器以及通信接口;所述存储器用于存储软件程序以及模块,所述处理器通过运行或执行存储在所述存储器内的软件程序和/或模块实现:
    获取用户设备的位置信息;
    根据所述用户设备的位置信息,确定分配给所述用户设备的位置区域标识列表,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
    将所述位置区域标识列表通过所述通信接口发送给服务所述用户设备的移动管理网元,以使所述移动管理网元将所述位置区域标识列表发送给所述用户设备。
  28. 一种位置信息分配设备,其特征在于,所述位置信息分配设备包括处理器、存储器以及通信接口;所述存储器用于存储软件程序以及模块,所述处理器通过运行或执行存储在所述存储器内的软件程序和/或模块实现:
    获取服务用户设备的控制面网关发送的所述用户设备的位置区域标识列表,所述位置区域标识列表是所述控制面网关根据所述用户设备的位置信息确定的,所述位置区域标识列表中的位置区域在服务所述用户设备的用户面网关的服务区域内;
    根据移动管理网元的服务区域对所述位置区域标识列表进行处理,并通过所述通信接口将处理后的所述位置区域标识列表发送给所述用户设备。
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