WO2012022196A1 - 一种唤醒家庭基站小区的方法和系统 - Google Patents

一种唤醒家庭基站小区的方法和系统 Download PDF

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Publication number
WO2012022196A1
WO2012022196A1 PCT/CN2011/076214 CN2011076214W WO2012022196A1 WO 2012022196 A1 WO2012022196 A1 WO 2012022196A1 CN 2011076214 W CN2011076214 W CN 2011076214W WO 2012022196 A1 WO2012022196 A1 WO 2012022196A1
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Prior art keywords
base station
home base
cell
station cell
target home
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PCT/CN2011/076214
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English (en)
French (fr)
Inventor
韩立锋
奚进
高音
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中兴通讯股份有限公司
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Publication of WO2012022196A1 publication Critical patent/WO2012022196A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0203Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless cellular communications, and in particular, to a method and system for waking up a home base station cell. Background technique
  • HNB home base station
  • HeNB evolved home base station
  • H(e)NB is a small, low-power base station deployed in indoor locations such as homes and offices. Its main function is to provide users with higher service rates and lower the cost of using high-speed services. There is a shortage of coverage of distributed cellular wireless communication systems.
  • the advantages of H(e)NB are affordable, convenient, low power output, plug and play, and more.
  • FIG. 1 is a schematic diagram of a network structure of the HNB system in the prior art.
  • FIG. 2 is a schematic diagram of a network structure of a HeNB system in the prior art.
  • the H(e)NB AN is composed of H(e)NB and H(e)NB gateways (GW, Gateway).
  • the main functions of the H(e)NB GW are: Handling H(e)NB registration and connection Incoming control, verifying H(e)NB, responsible for exchanging data of core network and H(e)NB.
  • the H(e)MS (Home (e)NodeB Management System) system is a home base station management system that performs operation and maintenance management on the home base station, configures and controls the home base station according to the operator's requirements, and mostly implements configuration management for the H(e)NB. Function, including verification of location information, parameter configuration for H(e)NB, mainly related to parameter configuration at the core network (CN, Core Network) level, parameter configuration on the radio access network (RAN, Radio Access Network) side And RF (Radio Frequency) parameter configuration.
  • the HeNB may directly connect to the mobility management entity (MME, Mobile Management Entity) without passing through the HeNB GW.
  • MME Mobility Management Entity
  • the home base station introduced the concept of Close Subscriber Group (CSG).
  • CSG Close Subscriber Group
  • IMSI International Mobile Subscriber Identity
  • the home base station introduces the concept of the CSG access mode.
  • the home base station with the access mode of Open allows the subscription and non-subscription users to access, which is the same as the normal macro cell; the home base station with the access mode is Close, only the users who subscribe to the CSG are allowed to access;
  • the home base station of the Hybrid mode allows the subscription and non-subscription users to access at the same time, but the contracted user resources are better than the non-subscription users.
  • the home base station preferentially serves the contracted users, and may not sign the contract.
  • the user switches to another cell or releases its signaling connection.
  • the user equipment UE, User Equipment
  • the Allowed CSG list is a list of information of all CSGs subscribed by the UE, and is stored in the network side and the UE, respectively. If the CSG to which the UE is connected to the UE is in the Allowed CSG List of the UE, the UE enters as the CSG subscription user; otherwise, the UE access is entered as a non-CSG subscription identity.
  • the home base station cell information that it has camped on can be reserved, in particular,
  • the UE needs to retain the home base station cell information (including the closed mode home base station cell and the mixed mode home base station cell), for example: the physical cell identifier (PCI, Physical Cell Identity) of the cell can be recorded, and the evolved cell Evolved Cell Global Identifier (ECGI), Tracking Area Identity (TAI), CSG logo, location info, etc. These information is called footprint or fingerprint. information.
  • PCI physical cell identifier
  • ECGI evolved cell Evolved Cell Global Identifier
  • TAI Tracking Area Identity
  • CSG logo location info
  • the implementation of the cell energy saving function is mainly implemented by the closing and opening of the cell.
  • the eNB determines that the cell is closed, and notifies the neighboring eNB that the state of the serving cell has entered the energy-saving off state.
  • the cell is awakened by the neighboring eNB.
  • the cell activation command which is generally based on the load demand of the neighboring cell, wakes up the cell in the energy-saving state and provides network services for the user.
  • one of the existing methods is to use the PI report of the UE as a trigger mode for waking up the home base station cell.
  • the UE arrives at the area of the home cell that has been parked but does not search for the signal of the cell, the UE reports the PI information, and informs the network side that there should be a cell but no signal is received; the network side receives the PI information.
  • the network side may consider waking up the home base station cell to provide services for the UE.
  • this wake-up method has the following two problems:
  • the location of the home base station cell may change frequently, and in the existing wake-up mode, it is impossible to confirm whether the geographical location of the home base station cell changes, and thus the Home base station cell.
  • the main object of the present invention is to provide a method and system for waking up a home base station cell, so as to solve the problem that the prior art cannot avoid the counterfeit reporting of PI information by the UE, and cannot accurately wake up the home base station cell.
  • the present invention provides a method for waking up a home base station cell, the method comprising:
  • the user equipment (UE) located in the coverage of the source base station cell reports the proximity indication (PI) information to the network side when approaching the target home base station cell that has been camped on;
  • the network side After receiving the PI information reported by the UE, the network side performs closed subscriber group (CSG) verification and/or location information verification on the UE, and initiates a wakeup process of the target home base station cell when the verification succeeds.
  • CSG closed subscriber group
  • the PI information includes frequency point information of the target home base station cell, and further includes at least one of the following contents:
  • the evolved cell global identity ECGI
  • tracking area identity TAI
  • CSG identity location information
  • location information of the UE of the target home base station cell there should be a cell but no indication of the received signal.
  • the performing the location information verification on the UE includes: at least one of the following: the source base station verifies whether the location of the UE is near the target home base station cell according to the location information of the target home base station cell and the location information of the UE, and verifies Whether the target home base station cell is in the vicinity of the cell of the source base station where the UE currently camps; the gateway of the target home base station cell verifies the location information of the target home base station cell reported by the UE in the PI information, and the target home base station saved by the gateway Whether the location information of the cell is consistent; the target home base station verifies whether the location information of the target home base station cell stored in the gateway is correct.
  • the performing the location information verification on the UE includes: at least one of the following: the source base station verifies whether the location of the UE is near the target home base station cell according to the location information of the target home base station cell and the location information of the UE, and verifies Whether the target home base station cell is near the cell of the source base station where the UE currently camps; the network side mobility management entity (MME) and/or the target home base station cell gateway acquires the location information of the target home base station cell, and verifies that the UE is in the PI Whether the location information of the target home base station cell reported in the information is consistent with the location information of the target home base station cell acquired by the MME and/or the target home base station cell gateway.
  • MME network side mobility management entity
  • the performing CSG verification on the UE is specifically: After the CSG verification is passed by the MME of the network side and/or the gateway of the target home base station cell, the target home base station verifies the correctness of the CSG identity.
  • the MME on the network side obtains the CSG identity of the target home base station cell from the target home base station or the target home base station cell gateway, and verifies whether the CSG identity of the target home base station cell is in the CSG list of the UE.
  • the method further includes: if the CSG verification and/or location information verification fails, the target home base station returns the correct location information and/or CSG identity to the source base station; the source base station notifies the correct location information and/or CSG identity to UE.
  • the location information of the target home base station cell is a combination of one or more of the following: macro cell coverage information, geographic location, and home base station network information.
  • the present invention also provides a system for waking up a home base station cell, where the system includes: a network side and a UE located in a cell coverage of the source base station, where
  • the UE is configured to report PI information to the network side when approaching the target home base station cell that has been parked;
  • the network side is configured to perform CSG verification and/or location information verification on the UE after receiving the PI information reported by the UE, and initiate an awakening process of the target home base station cell when the verification is passed.
  • the PI information includes frequency point information of the target home base station cell, and further includes at least one of the following contents:
  • Performing location information verification on the UE including at least one of the following:
  • the source base station verifies according to the location information of the target home base station cell and the location information of the UE.
  • the gateway of the target home base station cell verifies whether the location information of the target home base station cell reported by the UE in the PI information is consistent with the location information of the target home base station cell saved by the gateway.
  • the target home base station verifies whether the location information of the target home base station cell stored in the gateway is correct.
  • the method further includes: at least one of the following: the source base station verifies whether the location of the UE is near the target home base station cell according to the location information of the target home base station cell and the location information of the UE, and verifies Whether the target home base station cell is in the vicinity of the cell of the source base station where the UE currently camps; the network side MME and/or the target home base station cell gateway acquires the location information of the target home base station cell, and verifies the target home reported by the UE in the PI information. Whether the location information of the base station cell is consistent with the location information of the target home base station cell acquired by the MME and/or the gateway of the target home base station cell.
  • the target home base station After the CSG verification is passed by the MME of the network side and/or the gateway of the target home base station cell, the target home base station verifies the correctness of the CSG identity.
  • the MME on the network side obtains the CSG identity of the target home base station cell from the target home base station or the target home base station cell gateway, and verifies whether the CSG identity of the target home base station cell is in the CSG list of the UE.
  • the target home base station If the CSG verification and/or location information verification fails, the target home base station returns the correct location information and/or CSG identity to the source base station; the source base station notifies the UE of the correct location information and/or CSG identity.
  • the location information of the target home base station cell is a combination of one or more of the following: macro cell coverage information, geographic location, and home base station network information.
  • the present invention provides a method and system for waking up a home base station cell, which performs CSG identity verification for the UE and location information check of the home base station cell during the wake-up of the home base station cell
  • the certificate not only avoids the problem of the UE counterfeiting the reported PI information, but also can accurately wake up the home base station in the energy-saving state, and provide the necessary network coverage for the user while reducing the wake-up of the unnecessary energy-saving base station, thereby achieving the energy-saving effect.
  • FIG. 1 is a schematic diagram of a network structure of an HNB system in the prior art
  • FIG. 2 is a schematic diagram of a network structure of a HeNB system in the prior art
  • FIG. 3 is a flowchart of a method for waking up a home base station cell according to the present invention
  • FIG. 4 is a flowchart of a method for waking up a home base station cell according to Embodiment 1 of the present invention
  • FIG. 5 is a flowchart of a method for waking up a home base station cell according to Embodiment 2 of the present invention.
  • FIG. 6 is a flowchart of a method for waking up a home base station cell according to Embodiment 3 of the present invention.
  • FIG. 7 is a flowchart of a method for waking up a home base station cell according to Embodiment 4 of the present invention. detailed description
  • the method for waking up a home base station cell provided by the present invention mainly includes the following steps:
  • Step 301 The UE that is located in the cell coverage of the source base station reports the PI information to the network side when it is close to the target home base station cell that has been parked.
  • Step 302 After receiving the PI information reported by the UE, the network side performs CSG verification and/or location information verification on the UE, and initiates a wake-up procedure of the target home base station cell when the verification succeeds.
  • the PI information reported by the UE includes the frequency point information of the target home base station cell, and further includes at least one of the following: an ECGI, a TAI, a CSG identifier, a location information of the target home base station cell, a location information of the UE, and a cell that should exist. However, there is no indication that a signal has been received.
  • Method 1 verifying at least one of the following: the source base station according to the target home base station cell Position information and location information of the UE, verifying whether the location of the UE is near the target home base station cell, and verifying whether the target home base station cell is near the cell of the source base station where the UE currently camps; the gateway of the target home base station cell verifying that the UE is in the PI information Whether the location information of the target home base station cell in the medium and the reported is consistent with the location information of the target home base station cell saved by the gateway; and the target home base station verifies whether the location information of the target home base station cell stored in the gateway is correct;
  • Manner 2 Verify at least one of the following: The source base station verifies whether the location of the UE is near the target home base station cell according to the location information of the target home base station cell and the location information of the UE, and verifies whether the target home base station cell is currently in the UE The neighboring cell of the source base station is located; the MME of the network side and/or the gateway of the target home base station cell acquires the location information of the target home base station cell, and verifies the location information of the target home base station cell reported by the UE in the PI information, and the MME and/or Whether the location information of the target home base station cell acquired by the gateway of the target home base station cell is consistent.
  • the MME and/or the GW perform CSG verification, that is, perform UE access control; and the target home base station performs correctness verification of the CSG identifier;
  • the MME obtains the CSG identity information from the target HeNB2 or the GW, and after the MME performs the CSG identity verification, the MME sends a message to activate the target home base station cell.
  • the target home base station can return the correct location information and/or CSG identity to the source base station, and the source base station can notify the UE of the correct location information and/or CSG identity.
  • the location information of the target home base station cell may be a combination of one or more of the following: Macro Coverage Information, Geographic Location, and Home Base Station Network Information (HeNB) Internet Information).
  • the Macro Coverage Information refers to the UMTS Terrestrial Radio Access Network (UTRAN) cell.
  • LAC Public Land Mobile-communication Network identity
  • LAC Routing Area Code
  • For GSM cell identity
  • LAC Public Land Mobile communication network identity
  • LAC Public Land mobile communication network identity
  • TAC cell identity
  • Geographic Location can be information such as latitude and longitude, altitude, direction, and so on.
  • HeNB Internet Information can be an IP address.
  • the location information verification mode 1 is used, that is, the UE reports the location information of the target cell and the location information of the UE to the source base station by using the PI information, and the source base station determines the location information of the target cell and the location of the UE according to the target cell.
  • the information is verified whether the location of the UE is in the vicinity of the target cell, and whether the target home base station cell is in the vicinity of the cell of the source base station where the UE is currently camped; the gateway (GW, GateWay) of the target cell also verifies the target cell reported by the UE in the PI information. Whether the location information is consistent with the location information of the target cell stored by the GW, and the home base station of the target cell verifies whether the location information of the target cell in the GW is correct.
  • the UE is located in the cell 1 and is in the connected state. It is learned by the method such as footprint that the UE is close to a home base station cell 2 that has been camped on, but the UE does not detect the signal of the cell (ie, cell 2).
  • the UE may notify the base station 1 (i.e., the source base station) that the information of the cell (i.e., cell 2) should be notified by the PI information.
  • the UE sends the PI information to the base station 1, that is, step 401.
  • the PI information includes one or more of the following contents: ECGI, TAI, CSG identifier, location info of the cell 2.
  • the location information of the UE there should be a cell but no indication information of the signal is received.
  • the location information can be verified, that is, step 402. If the location of the cell 2 reported by the UE is near the cell 1, the cell 2 can be opened.
  • the base station 1 sends a request to the MME to activate the cell 2 Information, that is, step 403, the request message includes the global identifier (Global id) and TAI of the target side, the global identifier (Global id) and TAI of the source side, and the ECGI, CSG identifier, location info, etc. of the cell 2 One or more.
  • the target side here refers to the home base station HeNB2 to which the cell 2 belongs, and the source side refers to the base station 1.
  • the base station 1 needs to determine
  • the request message for activating cell 2 is not sent to the MME.
  • the MME After receiving the request message for activating the cell 2, the MME sends the request message to the GW of the HeNB2, that is, step 404.
  • the GW can perform verification of the location information to verify whether the location information of the cell 2 reported by the UE is related to the GW. If the location information of the cell 2 is consistent, that is, step 405, if the location information is consistent, the request message for activating the cell 2 is forwarded to the target HeNB (ie, HeNB2), that is, step 406, otherwise the home base station cell wake-up process ends.
  • the target HeNB ie, HeNB2
  • the HeNB2 may perform the verification of the location info, that is, step 407, verifying that the location information of the cell 2 is correct, and if it is correct, enter the open state to provide normal network services, and The wake up response message is returned to the GW, step 408.
  • the GW returns the wakeup response message to the base station 1 via the MME 1, i.e., steps 409-410, so that the base station 1 knows that the cell 2 has awake. If the HeNB2 fails to verify the location information of the cell 2, the HeNB2 may return the correct location info to the base station 1.
  • the wakeup response message includes the Global id and TAI of the target side, the Global id and TAI of the source side, and the ECGI of the cell 2. , one or more of the CSG logo, location info, and more.
  • the base station 1 may send the message to the UE by using an air interface message, and the UE may perform the update of the footstep information, that is, step 411.
  • the base station 1 may also notify the UE of the location of the cell 2 reported by the UE. Error.
  • the base station 1 is a home base station that belongs to the same GW as the HeNB 2, the request message and the wake-up response message for activating the cell 2 are not transited by the MME. Further, if the HeNB2 is not connected to the GW but directly connected to the MME, the request message and the wakeup response message for activating the cell 2 are not relayed by the GW, and the GW does not perform location verification.
  • the source information base station verifies whether the location of the UE is located in the vicinity of the target cell, and verifies whether the target home base station cell is near the cell of the source base station where the UE is currently camped; Obtaining the location information of the target cell, and verifying whether the location information of the target cell reported by the UE in the PI information is consistent with the location information of the target cell returned by the target home base station.
  • the UE is located in the cell 1 and is in the connected state. It is learned by the method such as footprint that the UE is close to a home base station cell 2 that has been camped on, but the UE does not detect the signal of the cell (ie, cell 2).
  • the UE may notify the base station 1 (i.e., the source base station) that the information of the cell (i.e., cell 2) should be notified by the PI information.
  • the UE sends the PI information to the base station 1.
  • Step 501 in addition to the frequency information of the cell 2, the PI information includes one or more of the following contents: ECGI, TAI, CSG identifier, location info, UE of the cell 2
  • the location information there should be a cell but no indication of the signal is received.
  • the location information can be verified, that is, step 502. If the location of the cell 2 reported by the UE is near the cell 1, the cell can be opened. 2;
  • the base station 1 sends a request message for activating the cell 2 to the MME, that is, step 503, where the request message includes the Global id and TAI of the target side, the Global id and TAI of the source side, and the ECGI, CSG identifier, and location of the cell 2.
  • the target side here refers to the home base station HeNB2 to which the cell 2 belongs, and the source side refers to the base station 1.
  • the base station 1 needs to determine whether the current location of the UE is near the cell 2. If not, the base station 1 does not issue an activation to the MME. Cell 2 request message.
  • the MME After receiving the request message for activating the cell 2, the MME obtains the location information of the cell 2 from the target HeNB2, that is, steps 504-505; and performs the verification by using the location information of the cell 2 returned by the target HeNB2, that is, in step 506, the cell reported by the UE is verified. Whether the location information of 2 matches the location information of cell 2 returned by the target HeNB2, if yes, the request message for activating cell 2 is sent to the target HeNB2 to wake up, ie, steps 507-508, otherwise the wake-up procedure is terminated.
  • the location information verification may also be implemented in the GW, and the GW may acquire the location information of the cell 2 from the target HeNB2, and perform the verification by using the location information of the cell 2 returned by the target HeNB2. It is verified whether the location information of the cell 2 reported by the UE is consistent with the location information of the cell 2 returned by the target HeNB2. If they are consistent, the request message for activating the cell 2 is sent to the target HeNB2 to wake up.
  • the GW can also obtain the location information of the cell 2 from the network management.
  • the MME may send the correct location info to the base station 1 , and the base station 1 may send the message to the UE, where the UE may update the footprint information.
  • the base station 1 may only notify the UE that the location information of the cell 2 reported by the UE is incorrect.
  • the HeNB2 After receiving the request message for activating the cell 2, the HeNB2 enters an active state, and returns a wake-up response message to the base station 1, notifying that the activation is successful, that is, steps 509-511.
  • the wakeup response message includes one or more of the Global id and TAI of the target side, the Global id and TAI of the source side, and the ECGI, CSG identifier, and location info of the cell 2.
  • the base station 1 is a home base station that belongs to the same GW as the HeNB 2
  • the request message and the wake-up response message for activating the cell 2 are not transited by the MME, and only the GW needs to perform the location 3 full certificate, and the MME does not perform the location 3 full. certificate.
  • the request message and the wake-up response message for activating the cell 2 are not transited by the GW, and only the MME needs to perform the location 3 full certificate, and the GW does not perform the location 3 full. certificate.
  • the foregoing CSG verification method 1 MME and/or GW is used.
  • the CSG is verified, that is, the access control of the UE is performed; the target home base station performs the correctness verification of the CSG identifier.
  • This method only activates the home base station cell when the UE is a member of the home base station cell.
  • the UE is located in the cell 1 and is in the connected state. It is learned by the method such as footprint that the UE is close to a home base station cell 2 that has been camped on, but the UE does not detect the signal of the cell (ie, cell 2).
  • the UE may notify the base station 1 (i.e., the source base station) that the information of the cell (i.e., cell 2) should be notified by the PI information.
  • the UE sends the PI information to the base station 1, that is, step 601, in addition to the frequency information of the cell 2, the PI information includes one or more of the following contents: ECGI, TAI, CSG identifier, location info, UE of the cell 2
  • the location information there should be a cell but no indication of the signal is received.
  • the base station 1 may request to open the cell 2, and the base station 1 sends a request message for activating the cell 2 to the MME, that is, step 602, where the request message includes the target.
  • the request message includes the target.
  • the target side here refers to the home base station HeNB2 to which the cell 2 belongs, and the source side refers to the base station 1.
  • the MME After receiving the request message for activating the cell 2, the MME performs CSG verification on the UE, that is, step 603, that is, performs access control of the UE.
  • the verification indicates whether the CSG identifier of the cell 2 is in the CSG list of the UE. Then, the request message for activating cell 2 is sent to the GW, step 604.
  • the GW may perform a CSG verification, that is, step 605, that is, perform access control of the UE, and verify whether the CSG identifier of the cell 2 reported by the UE is the CSG identifier of the cell 2 saved in the GW, if the information of the CSG identifier is used. If yes, the request message for activating cell 2 is forwarded to target HeNB2, step 606, otherwise it ends.
  • a CSG verification that is, step 605
  • step 605 that is, perform access control of the UE
  • the HeNB2 may perform the correctness verification of the CSG identifier, that is, step 607, and verify whether the CSG identifier of the cell 2 in the request message is correct, such as If it is correct, it enters the open state, and returns a wakeup response message to the GW, step 608.
  • the GW returns the wakeup response message to the base station 1 via the MME, ie, steps 609-610. If the HeNB2 fails to verify, HeNB2 can return the correct location info to the base station 1.
  • the wakeup response message includes the Global id and TAI of the target side, the Global id and TAI of the source side, and the ECGI, CSG identifier, and location of the cell 2. One or more of the information such as info.
  • the base station 1 may send the message to the UE by using an air interface message, that is, step 611, the UE may update the footprint information; or the base station 1 may only notify the UE of the CSG of the cell 2 reported by the UE. The information identified is incorrect.
  • the base station 1 is a home base station that belongs to the same GW as the HeNB 2
  • the request message and the wake-up response message for activating the cell 2 are not transited by the MME, and only the GW is required to perform CSG verification, and the MME does not perform CSG verification.
  • the GW can only verify whether the CSG identifiers of cell 1 and cell 2 are consistent. If they are consistent, the CSG verification is passed.
  • the request message and the wake-up response message for activating the cell 2 are not transited by the GW, and only the MME is required to perform CSG verification, and the GW does not perform CSG verification.
  • the MME obtains the CSG identification information from the target HeNB2 or the GW by using the foregoing CSG authentication mode 2. After the MME performs the CSG identity verification, the MME activates the message to activate the target home base station cell. This method only activates the home base station cell when the UE is a member of the home base station cell.
  • the UE is located in the cell 1 and is in the connected state. It is learned by the method of the footprint and the like that the UE is close to a home base station cell 2 that has once camped on, but the UE does not detect the signal of the cell (ie, cell 2).
  • the UE may notify the base station 1 (ie, the source base station) that the information of the cell (ie, cell 2) should be reported by the PI information.
  • the UE sends the PI information to the base station 1, that is, step 701, in addition to the frequency information of the cell 2, the PI information includes one or more of the following contents: ECGI, TAI, CSG identifier, location info, UE of the cell 2 Location information, should exist
  • the cell does not receive an indication of the signal or the like.
  • the base station 1 After the base station 1 receives the PI information, if it is known that the cell 2 has been shut down due to power saving, it may request to open the cell 2, and the base station 1 sends a request message for activating the cell 2 to the MME, that is, step 702, where the request message includes the target.
  • the request message includes the target.
  • the target side here refers to the home base station HeNB2 to which the cell 2 belongs, and the source side refers to the base station 1.
  • the MME After receiving the message 1 of the activation request, the MME obtains the CSG identification information from the target HeNB2 or the GW, and the MME sends a request message of the CSG identification information to the HeNB or the GW, where the request message may carry the information such as the ECGI of the target cell 2, the HeNB or The GW may return a response message of the CSG identification information, where the request message may carry information such as the ECGI and the CSG identifier of the target cell 2, that is, steps 703-704.
  • the MME obtains the CSG identification information of the cell 2
  • the CSG information is verified, that is, step 705, that is, whether the CSG identifier of the cell 2 is in the CSG list of the UE, that is, the access control of the UE is performed, and if the verification is passed, the activation is sent.
  • the request message of cell 2 is awakened to target HeNB2, ie, steps 706-707; otherwise, the wake-up procedure is ended.
  • the MME may send the correct CSG identifier to the base station 1, and the base station 1 may send the message to the UE, where the UE may update the footprint information.
  • the base station 1 may only notify the UE that the CSG identifier information of the cell 2 reported by the UE is incorrect. .
  • the HeNB2 After receiving the request message for activating the cell 2, the HeNB2 enters an active state, and returns a wake-up response message to the base station 1, that is, steps 708-710, where the message includes the global id and TAI of the target side, and the global id and TAI of the source side. And one or more of the ECGI, CSG logo, location info, etc. of cell 2.
  • the base station 1 is a home base station that belongs to the same GW as the HeNB 2, the request message and the wake-up response message for activating the cell 2 are not transited by the MME, and only the GW is required to perform CSG verification, and the MME does not perform CSG verification. Further, the GW can only verify whether the CSG identifiers of the cell 1 and the cell 2 are consistent. If they are consistent, the CSG verification passes. Further, if the HeNB 2 is not connected to the GW, but is directly connected to the MME, the request message and the wake-up response message for activating the cell 2 are not transited by the GW, and only the MME is required to perform CSG verification, and the GW does not perform CSG verification.
  • the present invention further provides a system for waking up a home base station cell, including: a network side and a UE located at a source base station cell coverage.
  • the UE is configured to report the PI information to the network side when approaching the target home base station cell that has been parked; the network side is configured to perform CSG verification and/or location information on the UE after receiving the PI information reported by the UE. Verification, and when the verification is passed, initiate the wake-up process of the target home base station cell.
  • the specific CSG verification and location information verification operations are as described in the foregoing methods, and are not described here.
  • the present invention may use one or both of the CSG verification and the location information verification, or may be mutually conditional. Therefore, the targeting of the HeNB cell waking up in an energy-saving state can be improved, and energy saving can be achieved.

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Description

一种唤醒家庭基站小区的方法和系统 技术领域
本发明涉及无线蜂窝通信领域, 尤其涉及一种唤醒家庭基站小区的方 法和系统。 背景技术
随着无线通信技术的发展, 为了增大宏网络的覆盖范围以及为用户提 高高速数据服务,提出了家庭基站的概念。家庭基站是传统家庭基站( HNB, Home NodeB )和演进型家庭基站( HeNB, Home evolved NodeB ) 的统称, 简称为 H(e)NB。 H(e)NB是一种小型、 低功率的基站, 部署在家庭及办公 室等室内场所, 其主要作用是给用户提供更高的业务速率并降低使用高速 率服务所需要的费用, 同时弥补已有分布式蜂窝无线通信系统覆盖的不足。 H(e)NB的优点是实惠、 便捷、 低功率输出、 即插即用等。
家庭基站用户是通过 H(e)NB接入网(AN, Access Network )连接到核 心网网络的, 如图 1和图 2所示, 图 1为现有技术中 HNB系统的网络结构 示意图,图 2为现有技术中 HeNB系统的网络结构示意图。其中 H(e)NB AN 由 H(e)NB和 H(e)NB网关 (GW, Gateway )共同组成, H(e)NB GW主要 执行的功能为: 处理 H(e)NB的注册和接入控制, 对 H(e)NB进行验证, 负 责交换核心网和 H(e)NB 的数据。 H(e)MS ( Home (e)NodeB Management System ) 系统为家庭基站管理系统, 对家庭基站进行运行维护管理, 根据 运营商要求配置和控制家庭基站, 最主要为 H(e)NB实现配置管理功能, 其 中包括位置信息的核实、为 H(e)NB进行参数配置,主要涉及到核心网( CN, Core Network )级别的参数配置、无线接入网( RAN, Radio Access Network ) 侧的参数配置以及射频 (RF, Radio Frequency ) 的参数配置。 对于 HeNB 系统, HeNB可以不通过 HeNB GW而和移动性管理实体 ( MME , Mobile Management Entity )直接连接。
随着家庭基站技术的发展, 家用基站引入了封闭签约用户组 (CSG, Close Subscriber Group )的概念。 CSG用以对用户进行分组管理, 用户属于 某一 CSG的前提是其终端设备的国际移动用户识别码( IMSI, International Mobile Subscriber Identity )和该 CSG进行了签约。伴随着 CSG概念的引入, 家庭基站引入了针对 CSG接入模式的概念, 其中, 家庭基站接入模式有三 种,分别是开放( Open )接入模式、封闭( Close )接入模式和混合( Hybrid ) 接入模式。 接入模式为 Open的家庭基站, 允许签约和非签约用户接入, 与 正常的宏小区无异; 接入模式为 Close的家庭基站, 仅仅允许和该 CSG签 约的用户接入; 而对于接入模式为 Hybrid的家庭基站, 虽然同时允许签约 和非签约用户接入, 但是签约用户资源使用上优于非签约用户, 在资源紧 张的情况下, 家庭基站优先服务于签约用户, 有可能将非签约用户切换到 别的小区或者释放其信令连接。其中,判断用户设备( UE, User Equipment ) 是以何种身份接入网络时, 可以根据 UE的允许接入 CSG列表(Allowed CSG List )来完成。 Allowed CSG list是 UE签约的所有的 CSG的信息列表, 分别存储于网络侧和 UE。 如果 UE接入的家庭基站所属的 CSG在 UE的 Allowed CSG List中, 则 UE是以 CSG签约用户身份进入的; 否则, UE的 接入是以非 CSG签约身份进入的。
对于 UE而言,可以对其驻留过的家庭基站小区信息进行保留,特别的,
UE需要保留以成员身份接入的家庭基站小区信息(包括封闭模式的家庭基 站小区和混合模式的家庭基站小区), 例如: 可以记录小区的物理小区标识 ( PCI, Physical Cell Identity ), 演进的小区全球标识(ECGI, Evolved Cell Global Identifier )、跟踪区域标识( TAI, Tracking Area Identity )、 CSG标识、 位置信息 ( location info )等, 这些信息称为足迹 ( footprint或 fingerprint ) 信息。 当 UE在连接态再次接近该小区时, UE向网络侧上报一个接近指示 PI ( Proximity Indication ), 通知网络侧该 UE在地理位置上接近了一个曾经 驻留过的家庭基站小区。
在长期演进( LTE , Long Term Evolution ) 的宏小区中, 小区节能功能 的实现主要通过小区的关闭和打开来完成的。 当小区准备进入节能状态时, 由本 eNB决定小区关闭,并通知邻近 eNB该服务小区的状态是已经进入了 节能关闭状态。 而小区的开启由邻接 eNB来唤醒, 通过小区激活命令, 一 般是邻区基于负荷的需求等, 将位于节能状态的小区唤醒, 为用户提供网 络服务。
对于家庭基站的节能, 现有的一种方式是通过 UE的 PI上报, 作为唤 醒家庭基站小区的触发方式。 当 UE 到达一个驻留过的家庭基站小区的区 域, 但没有搜索到该小区的信号时, UE上报 PI信息, 告知网络侧这里应 该有一个小区但是没有收到信号; 网络侧收到该 PI信息后, 确定对应的小 区已经由于节能而关闭, 则网络侧可以考虑唤醒该家庭基站小区, 为 UE 提供服务。 然而, 这种唤醒方式存在以下两个问题:
一、 无法避免可能存在的 UE假冒上报 PI信息的情况;
二、 由于家庭基站是一种便携式设备, 家庭基站小区的位置可能会经 常发生变化, 而在现有的唤醒方式中无法确认家庭基站小区的地理位置是 否发生变化, 从而也就无法准确的唤醒该家庭基站小区。 发明内容
有鉴于此, 本发明的主要目的在于提供一种唤醒家庭基站小区的方法 和系统, 以解决现有技术无法避免 UE假冒上报 PI信息, 以及无法准确唤 醒家庭基站小区的问题。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种唤醒家庭基站小区的方法, 该方法包括: 位于源基站小区覆盖的用户设备 ( UE )在接近曾经驻留过的目标家庭 基站小区时, 向网络侧上报接近指示 (PI )信息;
所述网络侧收到 UE上报的 PI信息后, 对所述 UE进行封闭签约用户 组(CSG )验证和 /或位置信息验证, 并在验证通过时, 发起所述目标家庭 基站小区的唤醒过程。
所述 PI信息中包括目标家庭基站小区的频点信息, 还包括以下内容的 至少之一:
目标家庭基站小区的演进的小区全球标识 ( ECGI )、 跟踪区域标识 ( TAI )、 CSG标识、 位置信息, UE的位置信息, 应该存在小区但是没有接 收到信号的指示信息。
所述对 UE进行位置信息验证, 具体包括以下内容的至少一项: 所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近; 目标家庭基站小区的网关验证所述 UE 在 PI信息中上报的目标家庭基站小区的位置信息, 与所述网关保存的目标 家庭基站小区的位置信息是否一致; 目标家庭基站验证所述网关中保存的 目标家庭基站小区的位置信息是否正确。
所述对 UE进行位置信息验证, 具体包括以下内容的至少一项: 所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE 当前驻留的源基站的小区附近; 网络侧的移动性管理实体(MME )和 / 或目标家庭基站小区的网关获取目标家庭基站小区的位置信息, 并验证 UE 在 PI信息中上报的目标家庭基站小区的位置信息与所述 MME和 /或目标家 庭基站小区的网关获取的目标家庭基站小区的位置信息是否一致。
所述对 UE进行 CSG验证, 具体为: 网络侧的 MME和 /或目标家庭基站小区的网关在进行 CSG验证通过 后, 目标家庭基站验证所述 CSG标识的正确性。
所述对 UE进行 CSG验证, 具体为:
网络侧的 MME 向目标家庭基站或目标家庭基站小区的网关获取目标 家庭基站小区的 CSG标识, 并验证目标家庭基站小区的 CSG标识是否在 UE的 CSG列表中。
该方法进一步包括: 如果 CSG验证和 /或位置信息验证失败, 目标家庭 基站将正确的位置信息和 /或 CSG标识返回到源基站;所述源基站将正确的 位置信息和 /或 CSG标识通知给 UE。
所述目标家庭基站小区的位置信息为以下一种或多种的组合: 宏小区 覆盖信息、 地理位置、 家庭基站网络信息。
本发明还提供了一种唤醒家庭基站小区的系统, 该系统包括: 网络侧 和位于源基站小区覆盖的 UE, 其中,
所述 UE, 用于在接近曾经驻留过的目标家庭基站小区时, 向网络侧上 报 PI信息;
所述网络侧, 用于收到 UE上报的 PI信息后, 对所述 UE进行 CSG验 证和 /或位置信息验证, 并在验证通过时, 发起所述目标家庭基站小区的唤 醒过程。
所述 PI信息中包括目标家庭基站小区的频点信息, 还包括以下内容的 至少之一:
目标家庭基站小区的 ECGI、 TAI、 CSG标识、 位置信息, UE的位置 信息, 应该存在小区但是没有接收到信号的指示信息。
所述对 UE进行位置信息验证, 包括以下内容的至少一项:
所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证
UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近; 目标家庭基站小区的网关验证所述 UE 在 PI信息中上报的目标家庭基站小区的位置信息, 与所述网关保存的目标 家庭基站小区的位置信息是否一致; 目标家庭基站验证所述网关中保存的 目标家庭基站小区的位置信息是否正确。
所述对 UE进行位置信息验证,具体包括以下内容的至少一项: 所述源 基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证 UE的位置 是否在目标家庭基站小区附近,并验证目标家庭基站小区是否在 UE当前驻 留的源基站的小区附近; 网络侧的 MME和 /或目标家庭基站小区的网关获 取目标家庭基站小区的位置信息, 并验证 UE在 PI信息中上报的目标家庭 基站小区的位置信息与所述 MME和 /或目标家庭基站小区的网关获取的目 标家庭基站小区的位置信息是否一致。
所述对 UE进行 CSG验证, 具体为:
网络侧的 MME和 /或目标家庭基站小区的网关在进行 CSG验证通过 后, 目标家庭基站验证所述 CSG标识的正确性。
所述对 UE进行 CSG验证, 具体为:
网络侧的 MME 向目标家庭基站或目标家庭基站小区的网关获取目标 家庭基站小区的 CSG标识, 并验证目标家庭基站小区的 CSG标识是否在 UE的 CSG列表中。
如果 CSG验证和 /或位置信息验证失败, 目标家庭基站将正确的位置信 息和 /或 CSG标识返回到源基站; 所述源基站将正确的位置信息和 /或 CSG 标识通知给 UE。
所述目标家庭基站小区的位置信息为以下一种或多种的组合: 宏小区 覆盖信息、 地理位置、 家庭基站网络信息。
本发明所提供的一种唤醒家庭基站小区的方法和系统, 通过在家庭基 站小区唤醒过程中对 UE的 CSG身份验证和对家庭基站小区的位置信息验 证, 不仅避免了 UE假冒上报 PI信息的问题, 也能够准确的唤醒处于节能 状态的家庭基站, 在为用户提供必要的网络覆盖的同时减少不必要的节能 基站的唤醒, 从而达到节能的效果。 附图说明
图 1为现有技术中 HNB系统的网络结构示意图;
图 2为现有技术中 HeNB系统的网络结构示意图;
图 3为本发明一种唤醒家庭基站小区的方法流程图;
图 4为本发明实施例一的唤醒家庭基站小区的方法流程图;
图 5为本发明实施例二的唤醒家庭基站小区的方法流程图;
图 6为本发明实施例三的唤醒家庭基站小区的方法流程图
图 7为本发明实施例四的唤醒家庭基站小区的方法流程图。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明所提供的一种唤醒家庭基站小区的方法, 如图 3 所示, 主要包 括以下步骤:
步骤 301 ,位于源基站小区覆盖的 UE在接近曾经驻留过的目标家庭基 站小区时, 向网络侧上报 PI信息。
步骤 302 , 网络侧收到 UE上报的 PI信息后, 对 UE进行 CSG验证和 / 或位置信息验证, 并在验证通过时, 发起目标家庭基站小区的唤醒过程。
其中, UE上报的 PI信息中包括目标家庭基站小区的频点信息, 还包 括以下内容的至少之一: 目标家庭基站小区的 ECGI、 TAI、 CSG标识、 位 置信息, UE的位置信息, 应该存在小区但是没有接收到信号的指示信息。
对 UE的位置信息验证, 可以釆用以下两种方式:
方式一, 验证以下内容的至少一项: 源基站根据目标家庭基站小区的 位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近;目标家 庭基站小区的网关验证 UE在 PI信息中上报的目标家庭基站小区的位置信 息, 与网关保存的目标家庭基站小区的位置信息是否一致; 目标家庭基站 验证网关中保存的目标家庭基站小区的位置信息是否正确;
方式二, 验证以下内容的至少一项: 源基站根据目标家庭基站小区的 位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近;网络侧 的 MME 和 /或目标家庭基站小区的网关获取目标家庭基站小区的位置信 息, 并验证 UE在 PI信息中上报的目标家庭基站小区的位置信息与 MME 和 /或目标家庭基站小区的网关获取的目标家庭基站小区的位置信息是否一 致。
对 UE的 CSG验证, 可以釆用以下两种方式:
方式一, MME和 /或 GW进行 CSG的验证, 也就是进行 UE的接入控 制; 目标家庭基站进行 CSG标识的正确性验证;
方式二, MME向目标 HeNB2或 GW获取 CSG标识信息, MME进行 CSG标识验证通过后, 发送消息激活目标家庭基站小区。
进一步的, 如果位置信息验证和 /或 CSG验证失败, 目标家庭基站可以 将正确的位置信息和 /或 CSG标识返回到源基站,源基站可以将正确的位置 信息和 /或 CSG标识通知到 UE。
另外, 需要说明的是, 所述目标家庭基站小区的位置信息可以为以下 一种或多种的组合: 宏小区覆盖信息 (Macro Coverage Information )、 地理 位置 ( Geographic Location )、 家庭基站网络信息 ( HeNB Internet Information )。 其中, Macro Coverage Information对于 UMTS陆地无线接入 网 (UTRAN, UMTS Terrestrial Radio Access Network ) 小区是指, 小区标 识、 公众陆地移动通信网标识 ( Public Land Mobile-communication Network identity ), 位置区域码 ( LAC , Location Area Code )、 路由区域码 ( RAC, Routing Area Code ); 对于 GSM小区是指, 小区标识、公众陆地移动通信网 标识、 LAC; 对于 LTE是指小区标识、 TAC。 Geographic Location可以是经 纬度、 海拔、 方向等信息。 HeNB Internet Information可以是 IP地址。
下面结合具体实施例对上述唤醒家庭基站小区的方法进一步详细阐 述。
在本发明的实施例一中, 釆用上述位置信息验证方式一, 即 UE通过 PI信息上报目标小区的位置信息和 UE的位置信息至源基站, 源基站根据 目标小区的位置信息和 UE的位置信息验证 UE的位置是否在目标小区附 近,并验证目标家庭基站小区是否在 UE现在驻留的源基站的小区附近; 目 标小区的网关( GW, GateWay )也验证 UE在 PI信息中上报的目标小区的 位置信息与 GW保存的目标小区的位置信息是否一致, 目标小区的家庭基 站验证 GW中的目标小区的位置信息是否正确。
如图 4所示, 具体实现操作描述如下:
UE位于小区 cell 1中并处于连接态, 通过 footprint等方法获知 UE接 近了一个曾经驻留过的家庭基站小区 cell 2 ,但是 UE没有检测到该小区(即 cell 2 )的信号。 UE可以将此处应该有个小区 (即 cell 2 )的信息通过 PI信 息的方式通知到基站 1 (即源基站)。 UE发送 PI信息到基站 1、即步骤 401 , 在 PI信息中除了包含 cell 2的频点信息外,还包含有以下一项或多项内容: cell 2的 ECGI、 TAI、 CSG标识、 location info , UE的位置信息, 应该存在 小区但是没有接收到信号的指示信息等。
基站 1收到该 PI信息后, 如果获知小区 cell 2已经由于节能而关闭, 可以进行位置信息的验证、即步骤 402 ,如果 UE上报的 cell 2的位置在 cell 1的附近, 则可以打开 cell 2; 基站 1向 MME发出一个激活 cell 2的请求消 息、 即步骤 403 , 该请求消息中含有目标侧的全球标识( Global id )和 TAI , 源侧的全球标识( Global id )和 TAI,以及 cell 2的 ECGI、 CSG标识、 location info 等信息中的一项或多项。 这里的目标侧是指 cell 2 所属的家庭基站 HeNB2 , 源侧是指基站 1。
进一步的, 如果 PI信息中上报了 UE当前的位置, 则基站 1需要判断
UE当前的位置是否在 cell 2附近, 如果不在附近, 则不向 MME发出激活 cell 2的请求消息。
MME收到激活 cell 2的请求消息后,发送该请求消息至 HeNB2的 GW、 即步骤 404, 可选的, GW可以进行一次位置信息的验证, 验证 UE上报的 这个 cell 2的位置信息是否与 GW中保存的 cell 2的位置信息一致、 即步骤 405 , 如果位置信息一致, 则转发激活 cell 2的请求消息至目标 HeNB (即 HeNB2 )、 即步骤 406, 否则该家庭基站小区唤醒过程结束。
HeNB2收到该激活 cell 2的请求消息后, 可选的, 进行 location info的 验证、 即步骤 407, 验证 cell 2的位置信息是否正确, 如果正确则进入打开 状态,可以提供正常的网络服务,并返回唤醒响应消息到 GW、即步骤 408。
GW将唤醒响应消息经过 MME返回至基站 1、 即步骤 409-410, 从而基站 1得知 cell 2已经唤醒。 如果 HeNB2验证 cell 2的位置信息失败, HeNB2 可以将正确的 location info返回到基站 1 , 那么该唤醒响应消息中含有目标 侧的 Global id和 TAI、 源侧的 Global id和 TAI, 以及 cell 2的 ECGI、 CSG 标识、 location info等信息中的一项或多项。
可选的 , 基站 1收到正确的 location info后 , 可以通过空口消息发送到 UE , UE可以进行 footprint信息的更新、 即步骤 411 ; 或者, 基站 1也可以 只通知 UE其上报的 cell 2的位置信息错误。
进一步的, 如果基站 1是和 HeNB2属于同一 GW下的家庭基站, 则激 活 cell 2的请求消息和唤醒响应消息不用通过 MME来中转。 进一步的, 如果 HeNB2没有和 GW连接, 而是直接和 MME连接, 则 激活 cell 2的请求消息和唤醒响应消息不用通过 GW来中转, GW也不执行 位置验证。
在本发明的实施例二中, 釆用上述位置信息验证方式二, 源基站验证 UE的位置是否位于目标小区附近, 并验证目标家庭基站小区是否在 UE现 在驻留的源基站的小区附近; MME获取目标小区的位置信息, 并验证 UE 在 PI信息中上报的目标小区的位置信息与目标家庭基站返回的目标小区的 位置信息是否一致。
如图 5所示, 具体实现操作描述如下:
UE位于小区 cell 1中并处于连接态, 通过 footprint等方法获知 UE接 近了一个曾经驻留过的家庭基站小区 cell 2 ,但是 UE没有检测到该小区(即 cell 2 )的信号。 UE可以将此处应该有个小区 (即 cell 2 )的信息通过 PI信 息的方式通知到基站 1 (即源基站 )。 UE发送 PI信息到基站 1、即步骤 501 , 在 PI信息中除了包含 cell 2的频点信息外, 还含有以下一项或多项内容: cell 2的 ECGI、 TAI、 CSG标识、 location info , UE的位置信息, 应该存在 小区但是没有接收到信号的指示信息等。
基站 1收到该 PI信息后, 如果获知小区 cell 2已经由于节能而关闭, 则可以进行位置信息的验证、 即步骤 502, 如果 UE上报的 cell 2的位置在 cell 1的附近, 则可以打开 cell 2; 基站 1向 MME发出一个激活 cell 2的请 求消息、 即步骤 503 , 该请求消息中含有目标侧的 Global id和 TAI, 源侧的 Global id和 TAI, 以及 cell 2的 ECGI、 CSG标识、 location info等信息中的 一项或多项。 这里的目标侧是指 cell 2所属的家庭基站 HeNB2, 源侧是指 基站 1。
进一步的, 如果 PI信息中上报了 UE当前的位置, 则基站 1需要判断 UE当前的位置是否在 cell 2附近, 如果不在附近, 则不向 MME发出激活 cell 2的请求消息。
MME收到激活 cell 2的请求消息后, 向目标 HeNB2获取 cell 2的位置 信息、 即步骤 504~505; 并利用目标 HeNB2返回的 cell 2的位置信息进行 验证、 即步骤 506,验证 UE上报的 cell 2的位置信息与目标 HeNB2返回的 cell 2的位置信息是否一致, 如果一致, 则发送激活 cell 2的请求消息至目 标 HeNB2进行唤醒、 即步骤 507~508 , 否则结束唤醒流程。
进一步的 ,该位置信息验证也可以在 GW实现, GW可以向目标 HeNB2 获取 cell 2的位置信息, 利用目标 HeNB2返回的 cell 2的位置信息进行验 证。验证 UE上报的 cell 2的位置信息与目标 HeNB2返回的 cell 2的位置信 息是否一致, 如果一致, 则发送激活 cell 2的请求消息至目标 HeNB2进行 唤醒。 可选的, GW也可以从网管获取 cell 2的位置信息。
可选的, MME可以将正确的 location info发送到基站 1 , 基站 1可以 发送给 UE, UE可以进行 footprint信息的更新; 或者, 基站 1也可以只通 知 UE其上报的 cell 2的位置信息错误。
HeNB2收到该激活 cell 2的请求消息后, 进入激活状态, 并返回唤醒 响应消息至基站 1 , 通知激活成功、 即步骤 509~511。 唤醒响应消息中含有 目标侧的 Global id和 TAI, 源侧的 Global id和 TAI, 以及 cell 2的 ECGI、 CSG标识、 location info等信息中的一项或多项。
进一步的, 如果基站 1是和 HeNB2属于同一 GW下的家庭基站, 则激 活 cell 2的请求消息和唤醒响应消息不用通过 MME来中转, 可以只需要 GW进行位置 3全证, MME不执行位置 3全证。
进一步的, 如果 HeNB2没有和 GW连接, 而是直接和 MME连接, 则 激活 cell 2的请求消息和唤醒响应消息不用通过 GW来中转, 可以只需要 MME进行位置 3全证, GW不执行位置 3全证。
在本发明的实施例三中, 釆用上述 CSG验证方式一, MME和 /或 GW 进行 CSG的验证, 也就是进行 UE的接入控制; 目标家庭基站进行 CSG标 识的正确性验证。这种方式只是针对 UE是家庭基站小区的成员时, 才激活 家庭基站小区。
如图 6所示, 具体实现操作描述如下:
UE位于小区 cell 1中并处于连接态, 通过 footprint等方法获知 UE接 近了一个曾经驻留过的家庭基站小区 cell 2 ,但是 UE没有检测到该小区(即 cell 2 )的信号。 UE可以将此处应该有个小区 (即 cell 2 )的信息通过 PI信 息的方式通知到基站 1 (即源基站 )。 UE发送 PI信息到基站 1、即步骤 601 , 在 PI信息中除了包含 cell 2的频点信息外, 还含有以下一项或多项内容: cell 2的 ECGI、 TAI、 CSG标识、 location info , UE的位置信息, 应该存在 小区但是没有接收到信号的指示信息等。
基站 1收到该 PI信息后, 如果获知小区 cell 2已经由于节能而关闭, 则可以请求打开 cell 2, 基站 1向 MME发出一个激活 cell 2的请求消息、 即步骤 602 ,该请求消息中含有目标侧的 Global id和 TAI, 源侧的 Global id 和 TAI , 以及 cell 2的 ECGI、 CSG标识、 location info等信息中的一项或多 项。 这里的目标侧是指 cell 2所属的家庭基站 HeNB2 , 源侧是指基站 1。
MME收到激活 cell 2的请求消息后,对 UE进行 CSG验证、即步骤 603 , 也就是进行 UE的接入控制,这里验证是指 cell 2的 CSG标识是否在 UE的 CSG列表中,如果通过, 则发送激活 cell 2的请求消息至 GW、 即步骤 604。
可选的, GW可以进行一次 CSG验证、 即步骤 605 , 也就是进行 UE 的接入控制,验证 UE上报的 cell 2的 CSG标识是否是 GW中保存的 cell 2 的 CSG标识,如果 CSG标识的信息正确则转发激活 cell 2的请求消息至目 标 HeNB2、 即步骤 606, 否则结束。
HeNB2收到该激活 cell 2的请求消息后, 可选的, 进行 CSG标识的正 确性验证、 即步骤 607 ,验证请求消息中的 cell 2的 CSG标识是否正确, 如 果正确则进入打开状态, 并返回唤醒响应消息到 GW、 即步骤 608。 GW将 唤醒响应消息经过 MME返回至基站 1、 即步骤 609~610。 HeNB2如果验证 失败, HeNB2可以将正确的 location info返回到基站 1 , 那么该唤醒响应消 息中含有目标侧的 Global id和 TAI, 源侧的 Global id和 TAI, 以及 cell 2 的 ECGI、 CSG标识、 location info等信息中的一项或多项。
可选的, 基站 1 收到正确的 CSG标识后, 可以通过空口消息发送到 UE、 即步骤 611 , UE可以进行 footprint信息的更新; 或者, 基站 1也可以 只通知 UE其上报的 cell 2的 CSG标识的信息错误。
进一步的, 如果基站 1是和 HeNB2属于同一 GW下的家庭基站, 则激 活 cell 2的请求消息和唤醒响应消息不用通过 MME来中转, 可以只需要 GW进行 CSG验证, MME不执行 CSG验证。 更进一步的, GW可以只验 证 cell 1和 cell 2的 CSG标识是否一致, 如果一致, 则 CSG验证通过。
进一步的, 如果 HeNB2没有和 GW连接, 而是直接和 MME连接, 则 激活 cell 2的请求消息和唤醒响应消息不用通过 GW来中转, 可以只需要 MME进行 CSG验证, GW不执行 CSG验证。
在本发明的实施例四中, 釆用上述 CSG验证方式二, MME 向目标 HeNB2或 GW获取 CSG标识信息, MME进行 CSG标识验证通过后, 才 会发送消息激活目标家庭基站小区。这种方式只是针对 UE是家庭基站小区 的成员时, 才激活家庭基站小区。
UE位于小区 cell 1中并处于连接态, 通过 footprint等方法获知 UE接 近了一个曾经驻留过的家庭基站小区 cell 2 ,但是 UE没有检测到该小区(即 cell 2 )的信号。 UE可以将此处应该有个小区 (即 cell 2 )的信息通过 PI信 息的方式通知到基站 1 (即源基站)。 UE发送 PI信息到基站 1、即步骤 701 , 在 PI信息中除了包含 cell 2的频点信息外, 还含有以下一项或多项内容: cell 2的 ECGI、 TAI、 CSG标识、 location info , UE的位置信息, 应该存在 小区但是没有接收到信号的指示信息等。
基站 1收到该 PI信息后, 如果获知小区 cell 2已经由于节能而关闭, 则可以请求打开 cell 2, 基站 1向 MME发出一个激活 cell 2的请求消息、 即步骤 702 ,该请求消息中含有目标侧的 Global id和 TAI, 源侧的 Global id 和 TAI , 以及 cell 2的 ECGI、 CSG标识、 location info等信息中的一项或多 项。 这里的目标侧是指 cell 2所属的家庭基站 HeNB2 , 源侧是指基站 1。
MME收到激活请求的消息 1后,向目标 HeNB2或 GW获取 CSG标识 信息, MME发送 CSG标识信息的请求消息到 HeNB或 GW, 该请求消息 中可携带目标小区 cell 2的 ECGI等信息, HeNB或 GW可以返回 CSG标 识信息的响应消息, 该请求消息中可携带目标小区 cell 2的 ECGI、 CSG标 识等信息、 即步骤 703~704。 MME得到 cell 2的 CSG标识信息后进行 CSG 信息验证、 即步骤 705 , 即验证 cell 2的 CSG标识是否在该 UE的 CSG列 表中, 也就是进行 UE的接入控制, 如果验证通过, 则发送激活 cell 2的请 求消息至目标 HeNB2进行唤醒、 即步骤 706~707; 否则, 结束唤醒流程。
可选的, MME可以将正确的 CSG标识发送到基站 1 ,基站 1可以发送 给 UE , UE可以进行 footprint信息的更新; 或者, 基站 1也可以只通知 UE 其上报的 cell 2的 CSG标识信息错误。
HeNB2收到该激活 cell 2的请求消息后, 进入激活状态, 并返回唤醒 响应消息至基站 1、 即步骤 708~710, 该消息中含有目标侧的 Global id和 TAI, 源侧的 Global id和 TAI, 以及 cell 2的 ECGI、 CSG标识、 location info 等信息中的一项或多项。
进一步的, 如果基站 1是和 HeNB2属于同一 GW下的家庭基站, 则激 活 cell 2的请求消息和唤醒响应消息不用通过 MME来中转, 可以只需要 GW进行 CSG验证, MME不执行 CSG验证。 更进一步的, GW可以只验 证 cell 1和 cell 2的 CSG标识是否一致, 如果一致, 则 CSG验证通过。 进一步的, 如果 HeNB2没有和 GW连接, 而是直接和 MME连接, 则 激活 cell 2的请求消息和唤醒响应消息不用通过 GW来中转, 可以只需要 MME进行 CSG验证, GW不执行 CSG验证。
对应上述唤醒家庭基站小区的方法, 本发明还提供了一种唤醒家庭基 站小区的系统, 包括: 网络侧和位于源基站小区覆盖的 UE。 其中, UE, 用于在接近曾经驻留过的目标家庭基站小区时, 向网络侧上报 PI信息; 网 络侧, 用于收到 UE上报的 PI信息后,对 UE进行 CSG验证和 /或位置信息 验证, 并在验证通过时, 发起目标家庭基站小区的唤醒过程。 具体的 CSG 验证和位置信息验证操作如前述方法中所述, 此处不再赘述。
需要说明的是, 对于 HeNB的唤醒过程, 本发明可以釆用 CSG验证和 位置信息验证中一项或两项, 也可以互为条件。 从而可以提高出于节能状 态的 HeNB小区唤醒的针对性, 可以更好的节能。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种唤醒家庭基站小区的方法, 其特征在于, 该方法包括: 位于源基站小区覆盖的用户设备 ( UE )在接近曾经驻留过的目标家庭 基站小区时, 向网络侧上报接近指示 (PI )信息;
所述网络侧收到 UE上报的 PI信息后, 对所述 UE进行封闭签约用户 组(CSG )验证和 /或位置信息验证, 并在验证通过时, 发起所述目标家庭 基站小区的唤醒过程。
2、 根据权利要求 1所述唤醒家庭基站小区的方法, 其特征在于, 所述 PI信息中包括目标家庭基站小区的频点信息,还包括以下内容的至少之一: 目标家庭基站小区的演进的小区全球标识 ( ECGI )、 跟踪区域标识 ( TAI )、 CSG标识、 位置信息, UE的位置信息, 应该存在小区但是没有接 收到信号的指示信息。
3、 根据权利要求 2所述唤醒家庭基站小区的方法, 其特征在于, 所述 对 UE进行位置信息验证, 具体包括以下内容的至少一项:
所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近;
目标家庭基站小区的网关验证所述 UE在 PI信息中上报的目标家庭基 站小区的位置信息, 与所述网关保存的目标家庭基站小区的位置信息是否 一致;
目标家庭基站验证所述网关中保存的目标家庭基站小区的位置信息是 否正确。
4、 根据权利要求 2所述唤醒家庭基站小区的方法, 其特征在于, 所述 对 UE进行位置信息验证, 具体包括以下内容的至少一项:
所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近;
网络侧的移动性管理实体( MME )和 /或目标家庭基站小区的网关获取 目标家庭基站小区的位置信息, 并验证 UE在 PI信息中上报的目标家庭基 站小区的位置信息与所述 MME和 /或目标家庭基站小区的网关获取的目标 家庭基站小区的位置信息是否一致。
5、 根据权利要求 2所述唤醒家庭基站小区的方法, 其特征在于, 所述 对 UE进行 CSG验证, 具体为:
网络侧的 MME和 /或目标家庭基站小区的网关在进行 CSG验证通过 后, 目标家庭基站验证所述 CSG标识的正确性。
6、 根据权利要求 2所述唤醒家庭基站小区的方法, 其特征在于, 所述 对 UE进行 CSG验证, 具体为:
网络侧的 MME 向目标家庭基站或目标家庭基站小区的网关获取目标 家庭基站小区的 CSG标识, 并验证目标家庭基站小区的 CSG标识是否在 UE的 CSG列表中。
7、 根据权利要求 1至 6任一项所述唤醒家庭基站小区的方法, 其特征 在于, 该方法进一步包括: 如果 CSG验证和 /或位置信息验证失败, 目标家 庭基站将正确的位置信息和 /或 CSG标识返回到源基站;所述源基站将正确 的位置信息和 /或 CSG标识通知给 UE。
8、 根据权利要求 2至 6任一项所述唤醒家庭基站小区的方法, 其特征 在于, 所述目标家庭基站小区的位置信息为以下一种或多种的组合: 宏小 区覆盖信息、 地理位置、 家庭基站网络信息。
9、 一种唤醒家庭基站小区的系统, 其特征在于, 该系统包括: 网络侧 和位于源基站小区覆盖的 UE, 其中,
所述 UE, 用于在接近曾经驻留过的目标家庭基站小区时, 向网络侧上 报 PI信息;
所述网络侧, 用于收到 UE上报的 PI信息后, 对所述 UE进行 CSG验 证和 /或位置信息验证, 并在验证通过时, 发起所述目标家庭基站小区的唤 醒过程。
10、 根据权利要求 9所述唤醒家庭基站小区的系统, 其特征在于, 所 述 PI信息中包括目标家庭基站小区的频点信息, 还包括以下内容的至少之 目标家庭基站小区的 ECGI、 TAI、 CSG标识、 位置信息, UE的位置 信息, 应该存在小区但是没有接收到信号的指示信息。
11、 根据权利要求 10所述唤醒家庭基站小区的系统, 其特征在于, 所 述对 UE进行位置信息验证, 包括以下内容的至少一项:
所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证
UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在
UE当前驻留的源基站的小区附近;
目标家庭基站小区的网关验证所述 UE在 PI信息中上报的目标家庭基 站小区的位置信息, 与所述网关保存的目标家庭基站小区的位置信息是否 一致;
目标家庭基站验证所述网关中保存的目标家庭基站小区的位置信息是 否正确。
12、 根据权利要求 10所述唤醒家庭基站小区的系统, 其特征在于, 所 述对 UE进行位置信息验证, 具体包括以下内容的至少一项:
所述源基站根据目标家庭基站小区的位置信息和 UE的位置信息,验证 UE的位置是否在目标家庭基站小区附近, 并验证目标家庭基站小区是否在 UE当前驻留的源基站的小区附近;
网络侧的 MME和 /或目标家庭基站小区的网关获取目标家庭基站小区 的位置信息, 并验证 UE在 PI信息中上报的目标家庭基站小区的位置信息 与所述 MME和 /或目标家庭基站小区的网关获取的目标家庭基站小区的位 置信息是否一致。
13、 根据权利要求 10所述唤醒家庭基站小区的系统, 其特征在于, 所 述对 UE进行 CSG验证, 具体为:
网络侧的 MME和 /或目标家庭基站小区的网关在进行 CSG验证通过 后, 目标家庭基站验证所述 CSG标识的正确性。
14、 根据权利要求 10所述唤醒家庭基站小区的系统, 其特征在于, 所 述对 UE进行 CSG验证, 具体为:
网络侧的 MME 向目标家庭基站或目标家庭基站小区的网关获取目标 家庭基站小区的 CSG标识, 并验证目标家庭基站小区的 CSG标识是否在 UE的 CSG列表中。
15、 根据权利要求 9至 14任一项所述唤醒家庭基站小区的系统, 其特 征在于, 如果 CSG验证和 /或位置信息验证失败, 目标家庭基站将正确的位 置信息和 /或 CSG标识返回到源基站; 所述源基站将正确的位置信息和 /或 CSG标识通知给 UE。
16、 根据权利要求 10至 14任一项所述唤醒家庭基站小区的系统, 其 特征在于, 所述目标家庭基站小区的位置信息为以下一种或多种的组合: 宏小区覆盖信息、 地理位置、 家庭基站网络信息。
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