WO2008134982A1 - Procédé, système et dispositif de commande pour accéder à un nœud privé b - Google Patents

Procédé, système et dispositif de commande pour accéder à un nœud privé b Download PDF

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Publication number
WO2008134982A1
WO2008134982A1 PCT/CN2008/070853 CN2008070853W WO2008134982A1 WO 2008134982 A1 WO2008134982 A1 WO 2008134982A1 CN 2008070853 W CN2008070853 W CN 2008070853W WO 2008134982 A1 WO2008134982 A1 WO 2008134982A1
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WIPO (PCT)
Prior art keywords
base station
user equipment
private base
access
macro cell
Prior art date
Application number
PCT/CN2008/070853
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English (en)
Chinese (zh)
Inventor
Michael Roberts
Johan Johansson
Mingjiang Xie
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008134982A1 publication Critical patent/WO2008134982A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/105—PBS [Private Base Station] network
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a control method, system and apparatus for accessing a private base station.
  • a private base station refers to a small, small base station for home or office use. It may be completely private. It can also be opened to the public for use with different priorities and permissions. Its ownership is private, not government or Operator; its use may be a small range of users, but also a wide range of users.
  • hNB or AP as a private base station as an example, using hNB or AP to implement wireless access, can better utilize existing network resources, better protect the cost of network equipment operators, and integrate mobile access networks and fixed connections.
  • the respective advantages of entering the network a typical indoor access scenario is shown in Figure 1.
  • a UE User Equipment
  • an hNB or an AP as a private base station routes to an access gateway through an access network to enter a universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) or LTE Unified Territorial Radio Access Network (UTRAN).
  • the access network may be a fixed network IP local area network or a DSL access network. Therefore, compared with the traditional macro base station access mode, the access scenario shown in FIG. 1 is more flexible and can be fully utilized. Existing fixed network resources.
  • the UE searches for the AP by carrying the information of the AP in the broadcast message of the macro cell, and implements the access according to the search result.
  • the user is required to switch on and off once after entering the coverage of the indoor base station, so as to prompt the UE to perform cell selection to camp in the cell of the indoor base station, thereby implementing access as a private base station.
  • AP access point
  • the AP is used as a private network as an example.
  • the access technologies are as follows:
  • the UE can perform domestic roaming based on a Public Land Mobile Network (PLMN) identifier (ID), where the PLMN ID is changed by a mobile country code (Mobi) Le Country Code (MCC) and Mobi le Network Code (MNC) consist of 3 bytes and 6 digits.
  • PLMN ID can be used to implement the PLMN selection mechanism to achieve domestic roaming.
  • the definition of domestic roaming is as follows: The MCCs in the PLMN ID are the same, and the MNCs are different; the corresponding international roaming is defined as: The MCCs in the PLMN ID are different.
  • the UE has a corresponding mechanism: when the UE is in another PLMN area in the same country as the Home PLMN (HPLMN) (ie, when doing domestic roaming), It will periodically search for its HPLMN.
  • HPLMN Home PLMN
  • the UE in the automatic network selection mode, when the UE is in the visited PLMN (Vi sit PLMN, VPLMN), the UE always preferentially selects the PLMN with the highest priority, that is, the HPLMN, to access.
  • the definition of the HPLMN is based on the UE's International Mobile Subscriber Identity (IMSI). If the first MCC/MNC of the IMSI is consistent with the current PLMN ID, this is the UE's HPLMN.
  • IMSI International Mobile Subscriber Identity
  • the UE will frequently perform PLMN search.
  • the period for performing the search is 6 minutes to 8 hours, generally 6 minutes is the minimum search period, and 60 minutes is the default search period.
  • the fixed time value is used as the search period, and once fixed, the PLMN search is performed according to the search period, so that the search period cannot be reasonably adjusted in combination with the location of the UE.
  • the above-mentioned access technology based on domestic roaming for private networks does not take into account the problem of mobility restrictions, and cannot avoid the UE accessing the corresponding private network.
  • the technical problem to be solved by the embodiments of the present invention is to provide a control method, system and device for accessing a private base station, so as to provide a reasonable search period for the private base station, and avoid the UE consumption caused by the unreasonable search period.
  • an embodiment of the present invention provides a control method for accessing a private base station, where the method includes:
  • the network side device When the user equipment enters the location area RA/routing area LA where the first macro cell is located, the network side device receives the location update request initiated by the user equipment, where the first macro cell and the cell covered by the private base station are adjacent to each other. ;
  • Adjusting the public land mobile network PLMN search period of the user equipment according to the determination result And notifying the user equipment, so that the user equipment performs according to the adjusted search period.
  • the embodiment of the invention further provides a control system for accessing a private base station, the system comprising: a network side device, wherein:
  • the network side device is configured to: when the user equipment enters the location area RA/the routing area LA where the first macro cell is located, receive the location update request initiated by the user equipment, where the first macro cell and the private base station are covered Adjacent to the cell;
  • the network side device is further configured to determine a distance of the user equipment from the private base station; and, according to the determination result, adjust a public land mobile network PLMN search period of the user equipment, and notify the user equipment, The user equipment is caused to perform a PLMN search according to the adjusted search period.
  • the embodiment of the present invention further provides a control device for accessing a private base station, where the device includes: a receiving unit, configured to receive a location update request sent by the user equipment;
  • a determining unit configured to determine a distance from the private base station that the user equipment is allowed to access; an adjusting unit, configured to determine a determination result of the unit, and adjust a PLMN search period of the user equipment; and a notification unit, configured to adjust the The PLMN search period is notified to the user equipment.
  • An embodiment of the present invention provides a control method for accessing a private base station, where the method includes: a private base station receiving a connection request sent by a user equipment, where the connection request carries an identifier of the user equipment;
  • the embodiment of the present invention further provides a control system for accessing a private base station, where the system includes: a network side device, where: The network side device is used to:
  • the private base station After receiving the message sent by the private base station, the private base station sends a message to the network side device after receiving the connection request sent by the user equipment, and notifies the network side device to determine whether the user equipment is allowed to access the device.
  • Private base station and
  • the embodiment of the present invention further provides a control device for accessing a private base station, where the device includes: a determining unit, configured to: after receiving the message sent by the private base station, according to the user equipment identifier and the identity of the private base station itself, Obtaining subscription information of the user equipment and the private base station, determining, according to the subscription information, whether the user equipment is allowed to access the private base station, and notifying the private base station of the determination result.
  • a determining unit configured to: after receiving the message sent by the private base station, according to the user equipment identifier and the identity of the private base station itself, Obtaining subscription information of the user equipment and the private base station, determining, according to the subscription information, whether the user equipment is allowed to access the private base station, and notifying the private base station of the determination result.
  • the embodiment of the invention further provides a private base station, the base station comprising:
  • a receiving unit configured to receive a connection request sent by the user equipment
  • a determining unit configured to acquire, according to the user equipment identifier in the connection request, subscription information with the user equipment, to check whether the user equipment that is currently requested to access is a user equipment that is allowed to access, and the notification unit is configured to: The result of the judgment is notified to the user equipment.
  • the embodiment of the present invention further provides a control method for accessing a private base station, and determines whether the current state of the private base station is in a state of not being located in the 00S of the coverage of the macro cell or in the state of the IS within the coverage of the macro cell, or The IS/00S state of the part of the IS and the 00S, when determining that the private base station is in the 00S state, allocates a separate routing area code LAC or a routing area code RAC to the private base station; the method includes:
  • the user equipment When the user equipment requests access to the private base station, determining that the user equipment is not allowed to access the private base station, prompting the user equipment according to the state of the private base station
  • the reason for the limitation is to switch the user equipment to the macro cell.
  • the embodiment of the present invention further provides a control device for accessing a private base station, where the device includes: a state determining unit, configured to determine whether the private base station is not located within the coverage of the macro cell
  • the state of 00S is still in the state of IS in the coverage of the macro cell, or in the IS/00S state of part IS and part 00S;
  • An identifier allocation unit configured to allocate a separate routing area identifier to the private base station after the state determining unit determines that the private base station is currently in the 00S state;
  • the error cause prompting unit is configured to: after the private base station determines that the user equipment is not allowed to access, according to the state of the private base station, prompt the user equipment for the reason for the limited service.
  • the UE can flexibly adjust the search period of the PLMN search according to the current location of the UE, so as to ensure that the private base station can be found and accessed when the UE is close to the private base station, and when it is away from the private base station, The PLMN search is performed as little as possible, thereby saving the power consumption of the UE.
  • the embodiment of the present invention provides a corresponding control method for the problem of mobility limitation, so that the private base station can avoid the access of the user equipment that is not allowed, and can provide the user equipment when the user equipment is not allowed to access.
  • User equipment corresponding prompts to ensure network security and improve service quality.
  • Figure 1 is a schematic diagram of a typical indoor access scenario
  • FIG. 3 is a schematic diagram of a scenario in which the method shown in FIG. 2 can be specifically applied;
  • Embodiment 4 is a flowchart of a method provided by Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of a scenario in which the method shown in FIG. 4 can be specifically applied;
  • FIG. 7 is a flowchart of a method according to Embodiment 4 of the present invention.
  • 8 is a flowchart of a handover method according to Embodiment 4 of the present invention.
  • FIG. 10 is a schematic diagram showing a scenario in which an AP is located in a macro cell service coverage area
  • 11a and 1b are schematic diagrams of a scenario in which an AP is located in a service coverage area of a corresponding type of macro cell according to an embodiment of the present invention
  • FIG. 12 is a flowchart of a method provided in Embodiment 5 of the present invention.
  • the embodiment of the present invention provides a control method, system, and device for accessing a private base station, where the scenario is based on: the UE may select a PLMN based on domestic roaming between the cells covered by the macro cell and the private base station, thereby being idle.
  • the (Idle) state finds the network corresponding to the private base station and implements access to the private base station.
  • the AP is taken as a private base station as an example.
  • other private base stations including the hNB may of course be used without affecting the present invention. Implementation.
  • the following configuration for the AP network is performed:
  • the HPLMN of the UE used by the user is the PLMN of the AP network purchased by the user;
  • the PLMN that is separately allocated for the AP network is set to HPLMN, that is, with this setting, the PLMN of the macro cell opposite to the AP network is set to VPLMN, so that based on the setting, the UE will be based on the domestic Roaming PLMN search (search), and find the AP network and access in the idle (Idle) state.
  • search the domestic Roaming PLMN search
  • a method for controlling access to a private base station where First consider the following questions: If the search period is set to a short time, such as 6 minutes, a more frequent PLMN search will be performed, and each time a PLMN search is performed, a large amount of power in the UE will be consumed, thus causing the UE to leave the AP. After the network, the UE's power is consumed in a large amount due to continuous search for the HPLMN. Conversely, if the search period is set to be long, the AP may not be found in time when the UE enters the AP network coverage area, thereby affecting the quality of service.
  • the network side determines the proximity of the UE to the AP, and automatically adjusts the PLMN search period of the UE according to the determination result, so that when the UE moves away from the AP, the search period is adjusted. Long, until the maximum or closed PLMN search is reached; and when the UE is close to the AP, the search period is shortened.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the method provided in Embodiment 1 of the present invention specifically includes:
  • Step 201 When the UE enters a location area (RA)/routing area (LA) where the first macro cell is located, the UE initiates an RA/LA location update (RAU/LAU) request; where the first macro cell and the permission station The cells covered by the AP accessed by the UE are adjacent to each other;
  • RA location area
  • LA routing area
  • RAU/LAU RA/LA location update
  • Step 202 After receiving the RAU/LAU request, the network device (CN) on the network side determines that the UE is currently closer to the AP that is allowed to access the UE, and shortens the PLMN search period of the UE according to the determination result.
  • the network device (CN) on the network side determines that the UE is currently closer to the AP that is allowed to access the UE, and shortens the PLMN search period of the UE according to the determination result.
  • the network side has pre-stored the corresponding relationship between each AP and its neighboring macro cell. According to the corresponding relationship, the network side may implement the foregoing determining step, specifically: the network side obtains the current location of the UE. The RA/LA of the macro cell, and determining the AP corresponding to the UE, and determining the RA/LA of the macro cell adjacent to the AP corresponding to the UE according to the foregoing correspondence;
  • the foregoing manner may also be implemented to determine whether the UE is determined. Being judged close to the AP does not affect the implementation of the present invention
  • the degree of the PLMN search period is reduced according to the foregoing determination result, so that the closer the distance is to the AP, the smaller the search period is.
  • a fixed value may be used.
  • the target value of the search period is reduced, neither of which affects the implementation of the present invention.
  • Step 203 The CN notifies the UE of the modified PLMN search period, and the UE searches for the PLMN according to the PLMN search period, and searches for and accesses the AP when it is in the coverage of the AP as the HPLMN.
  • the CN may use the data downloading method, such as the short message mode, to notify the UE of the modified PLMN search period, and may also implement the notification by other means.
  • the data downloading method such as the short message mode
  • FIG. 3 the method shown in FIG. 2 can be specifically applied to the two scenarios shown in FIG. 3, specifically:
  • Scenario 1 The UE directly enters the AP from the macro cell that is adjacent to the AP.
  • the UE is configured to be in the AP network. Therefore, when the UE enters the AP from the macro cell, the UE is equivalent to the UE. Returning from the VPLMN to its HPLMN in domestic roaming;
  • Scenario 2 The UE returns from its neighboring hNB to its own hNB; such a scenario means that the UE has selected its own HPLMN, and the UE needs to do: to perform cell reselection to return its own HPLMN;
  • the scenario is based on the assumption that the neighboring hNB has added the UE's own hNB to its neighbor cell list, thereby enabling the UE to reselect its own mouse.
  • Embodiment 2 Referring to FIG. 4, when the network side determines that the UE is far away from the AP, the method provided by Embodiment 2 of the present invention specifically includes:
  • Step 401 The UE initiates a RAU/LAU request when the UE leaves the RA/LA where the first macro cell is located, where the first macro cell and the cell covered by the AP that the UE is allowed to access are adjacent to each other;
  • Step 402 After receiving the RAU/LAU request, the CN on the network side determines that the UE is currently far away from the AP that allows it to access, and according to the determination result, the PLMN search period of the UE is lengthened;
  • the determining process in step 402 can be implemented in a manner similar to that described in the first embodiment.
  • the PLMN search period is determined according to the determination result. The extent of the increase, so that the further away from the AP, the greater the search period; of course, only a fixed value can be used as the target value of the growth search period, neither of which affects the implementation of the present invention.
  • Step 403 The CN notifies the UE of the modified PLMN search period, and the UE searches for the PLMN according to the PLMN search period, and searches for and accesses the AP when it is in the coverage of the AP as the HPLMN.
  • the modified PLMN search period may be notified to the UE by using the data downloading manner described in the first embodiment or other manners.
  • FIG. 5 the method shown in FIG. 4 can be specifically applied to the two scenarios shown in FIG. 5, specifically:
  • Scenario 3 The UE leaves its hNB and enters its neighboring hNB, or the UE leaves its own HPLMN, but is still in the coverage of its neighboring macro cell or in the RA of the neighboring macro cell.
  • Scenario 4 The UE is not in the coverage of the LA/RA to which the neighboring macro cell belongs.
  • the embodiment of the present invention further provides a corresponding control system for accessing a private base station, including a network side device and a UE, where:
  • the UE When the UE is used to enter the RA/LA where the first macro cell is located, the UE initiates a location update request; where the first macro cell is adjacent to a cell covered by an AP that allows the UE to access;
  • the network side device is configured to: after receiving the location update request, determine, to obtain a near-far situation of the UE that is currently allowed to access the UE, and adjust a PLMN search period of the UE according to the determination result, and notify the UE Make the appropriate adjustments.
  • the network side device may be a CN, and the network side may determine, by determining whether the RA/LA of the macro cell where the UE is currently located is close to or overlapping with the RA/LA of the macro cell adjacent to the AP. The near and far situation with the AP.
  • the embodiment of the present invention also seeks to protect the network side device described in the above system.
  • the network side device further includes:
  • a receiving unit configured to receive a location update request sent by the UE
  • a determining unit configured to determine a far-and-close situation of the UE that is currently allowed to access the AP; the adjusting unit is configured to determine a determination result of the unit, and adjust a PLMN search period of the UE; and a notification unit, configured to: use the adjusted PLMN search period Notify the UE.
  • the unit described in the above network side device can also exist as a separate control device.
  • a control method for determining whether the UE is allowed to access the access private base station is provided.
  • the fourth embodiment describes the method in detail:
  • the CN device on the network side is used to determine whether the UE is an authorized user that is allowed to access. Therefore, the CN side needs to save the related subscription information of the UE and the AP.
  • the subscription information includes at least a private base station identifier/base station cell list, and private base station data, and a user equipment subscription information including at least a private base station identifier or a base station cell list, and a user identifier; or
  • the saved contract information may also include the contents as shown in Table 1 and Table 2;
  • the UE's subscription information informs the UE to allow access to or possess those APs.
  • AP Cell list A plurality of cells that an AP may have. Like the current base station, an AP may have multiple cells.
  • IMSI (or IMSI list) IMSI or IMSI list of the owner of the AP
  • IMSI list The IMSI list of UEs that can access the AP as a visitor.
  • the network identifier to which the PLMN ID AP belongs including the MCC + MNC two parts.
  • the RNC ID inherits the RNC ID of the UMTS and is used on the Iu interface.
  • IS OOS: IS/OOS (The environment in which the AP is located, if there is no macro cell coverage, it is OOS, if the AP coverage to macro layer) is IS with macro cell coverage, or only part of the AP has macro cell coverage. , then IS/OOS
  • AP Neighbour cell list AP neighbor cell list.
  • all the cells need to be configured with a list of neighboring cells, which are sent in the broadcast information of each cell, and tell the UE which neighboring cells can be reselected by the cell.
  • the subscription information may be saved on both the CN and the AP, and the implementation of the present invention is not affected.
  • Embodiment 3 After the above-mentioned contract information is saved, the methods provided in the third embodiment and the fourth embodiment of the present invention can be implemented. The two embodiments will be described in detail below with reference to the accompanying drawings. Embodiment 3:
  • the UE is a UE that is allowed to be accessed by the AP.
  • the method for controlling the accessing the private base station includes:
  • Step 601 The UE establishes RRC (Radio Resource Control) with the AP.
  • RRC Radio Resource Control
  • the UE sends its own identity, such as IMS I, to the AP.
  • the private base station may request the user equipment to camp on other carrier frequencies or other wireless access.
  • the technology performs measurement so that the private base station does not allow the user equipment that accesses the private base station to switch the user equipment to the adjacent macro cell or other private base station according to the measurement result.
  • Step 602 The AP sends an initial message to the CN to perform a service request.
  • the message carries the identifier of the UE and the identifier of the AP.
  • the AP sends an initial message to the CN in the embodiment of the present invention.
  • the step may also be implemented by sending other messages, without affecting the implementation of the present invention;
  • Step 603 The CN requests the database that holds the subscription information to obtain the subscription information of the UE and the AP according to the identifier of the UE and the identity of the AP.
  • the database may be a home location register (HLR), or may be other storage.
  • HLR home location register
  • Step 604 The database returns the obtained subscription information of the UE and the AP to the CN, and the CN determines, according to the subscription information, that the UE is allowed to access the AP.
  • Step 605 The CN informs the AP to allow the current UE to access; wherein, in the embodiment of the present invention, the CN uses the direct transmission message to inform the AP to allow the UE to access;
  • Step 606 The UE accesses the network through the AP to obtain a service.
  • Embodiment 4 In this embodiment, the UE is a UE that is not allowed to be accessed by the AP.
  • the method for controlling the accessing the private base station specifically includes:
  • Step 701 to step 703 are the same as steps 601 to 603;
  • Step 704 The database returns the obtained subscription information of the UE and the AP to the CN, and the CN determines, according to the subscription information, that the UE is not allowed to access the AP.
  • Step 705 The CN informs the AP that the current UE is not allowed to access.
  • the CN uses the direct transmission message to notify the AP that the UE is not allowed to access.
  • Step 706 The AP directly requests the UE to perform blind handover, to switch to the neighboring macro cell or other public that allows the user equipment to access. Private base station. Even if there is no measurement of the surrounding cell by the user equipment, the private base station can trigger the user equipment to perform blind handover by using the previously generated handover, or by installing the answering device on the private base station to learn the information of some cells existing around the private base station. .
  • the UE since the AP knows some information of the neighboring cell, the UE does not need to measure the neighboring macro cell to perform blind handover. If the blind handover is not used, the private base station may request the user equipment to surround the other. After the carrier frequency or other radio access technology performs measurement, according to the measurement result, the user equipment is switched to an adjacent macro cell or other private base station through a handover procedure.
  • Step 707 The AP initiates a handover, so that the UE switches to the neighboring macro cell, where the handover signaling process and the relocation process are performed, and the AP and the CN side node are required to interact;
  • Step 708 The AP notifies the UE to switch to the neighboring cell, and after receiving the notification, the UE switches to the neighboring cell.
  • the UE is switched to the neighboring macro cell by using the AP.
  • the UE when the UE establishes a connection with the macro cell, the following two are also provided.
  • the handover method is used to switch the UE to another AP through the macro cell if the current AP does not allow the UE to access, specifically:
  • the handover method is as follows: In this method, when the UE is in a macro cell, and the UE is close to the AP that allows itself to access (the AP is within the coverage of the macro cell), the macro cell switches the UE to the AP;
  • the UMTS RNC Radio Network Controller, Radio Network Controller
  • NB NodeB, Base Station
  • the AP to the CN SGSN (Serving GSN) or MSC (Mobi le Swi tching Center)
  • the interface of the Mobile Switching Center will be equivalent to the Iu interface.
  • the switching method specifically includes:
  • Step 800 The CN can obtain the (AP) subscription information of the UE in the active state from the CN database. This means that the UE-AP association information needs to be transmitted on the Iu interface of the macro cell (or the UE is allowed to connect).
  • Step 801 The macro cell sends the measurement control information to the UE, where the information about the AP that is allowed to access in the vicinity of the UE, the air interface wireless parameter configuration of the AP, such as a scrambling code, is conveniently included for the UE to search.
  • Step 802 The macro cell finds that the AP that is allowed to access is a good handover candidate cell, and confirms that the UE is allowed to access, and sends a relocation request to the CN; thereby starting the RNC relocation process of the UMTS standard;
  • Step 803 The CN sends a relocation request to the AP in step 802.
  • the request may need to span multiple CN nodes, such as multiple SGSNs, etc., for convenience of description, no description is made, but A CN node (such as SGSN) operates.
  • a CN node (such as SGSN) operates.
  • some special information needs to be transmitted to distinguish it from the general procedure of the UMTS.
  • the information may be some AP-related subscription information of the UE, and is used for the AP to check the visited UE. If it is not the UE that is allowed to access, the AP may Will refuse this switching process.
  • Step 804 The AP prepares a radio resource for the UE, and when it is ready, sends a relocation request to the AP.
  • Step 805 The CN sends a relocation command to the macro cell.
  • Step 806 The macro cell sends a physical channel reconfiguration to the UE.
  • Step 807 The UE switches to the AP, and the physical channel reconfiguration is completed to the AP.
  • the UE has completed the handover from the macro cell to the AP. It should be noted that the above process differs from the general handover process in that some UE ⁇ AP related subscription information is needed in these processes.
  • the Iu interface is the information that the AP ⁇ CN node needs to pass to the AP.
  • Switching method 2 In the method, for a UE that does not have a private AP to allow access, if there is a public AP in the current macro cell, the macro cell may switch the UE to the public AP; the public AP may be a small one. AP corresponding to the supermarket and office;
  • the CN may check whether the UE is allowed to access the AP, and the AP may also check whether the UE is allowed to access; because even if access is allowed, there may be a difference in priority, such as If the super user comes, that is, the AP owner comes, other users may have the risk of being preempted and excluded. Therefore, the switched UE also needs to check some subscription information related to the AP.
  • the handover method specifically includes:
  • Step 900 The macro cell informs the public AP information in the vicinity of the UE (that is, in the macro cell);
  • the macro cell performs the foregoing notification by using the broadcast information of the macro cell; if the number of the public APs is large, the broadcast information cannot carry the information of all the public APs, and may also be notified only by the broadcast information. Have the existence of a public AP, and inform the UE of some basic information common to these public APs, without telling the specific public APs;
  • Step 901 The macro cell filters out the public AP that allows the UE to access, sends the handover measurement control information to the UE, and the UE sends a measurement report to the macro cell. ;
  • Steps 902 to 907 are the same as steps 802 to 807.
  • performing access monitoring of the UE for the public AP may simplify the process.
  • the operator can use the public AP. Lower it to attract more users.
  • the content delivered and the content transmitted by the existing signaling are between the AP and the CN, that is, the Iu interface.
  • the AP needs to notify the CN to check whether the UE is allowed to access the AP through the initial message (Initial Message), and therefore, the identifier of the AP needs to be added in the initial message, so that the CN is based on the AP.
  • the identification implements the check.
  • an AP can be uniquely identified in a location area or a routing area based on PLMN + LAC ( + RAC ) + AP identity; see Table 3, after the original Ini t ia l UE Mes sage message After the AP identifier (AP ident i ty ), the format of the message is:
  • Table 5 shows how to identify the AP:
  • the CN needs to reply to the AP through the Iu interface to inform the AP of the corresponding check result: After the CN is checked, for example, the MSC or the SGSN obtains the subscription information of the UE in the HLR and judges whether the UE is allowed. Using the AP, the CN side needs to notify the AP of the result of the access check by using the direct transmission message of the Iu interface.
  • the direct transmission message is not changed; if the access is denied, the access check result is added to the direct transmission message to indicate that the access check fails;
  • the reason for the rejection may be further increased to indicate to the AP that the access is denied due to the failure of the access check; and the format of the direct transmission message that adds the check result and the reason for the rejection may refer to Table 6:
  • the CN is used as the network side device.
  • the other network side device may also be used to implement the present invention.
  • the embodiment of the present invention also provides a corresponding control system and apparatus for accessing a private base station, and the system and apparatus are separately introduced below.
  • the system includes: a network side device and a private base station; wherein, for convenience of description, the CN is used as the network side device and the AP is used as the private base station in the embodiment of the present invention:
  • the CN is used to:
  • the related subscription information of the UE and the AP is saved, and the contents of the subscription information are shown in Table 1 and Table 2;
  • the UE After receiving the initial message sent by the AP, the UE obtains the subscription information of the UE and the AP from the database that holds the subscription information according to the identifier of the UE and the identifier of the AP.
  • the CN determines whether the UE is allowed to be accessed according to the subscription information. Entering the AP, and notifying the AP of the judgment result;
  • the AP is configured to send an initial message to the CN after the UE establishes a connection with the UE, and notify the CN to determine whether the UE is allowed to access the AP.
  • the network side device is separately protected as a device for controlling the access to the private base station, and the device includes:
  • a storage unit configured to store related subscription information of the UE and the AP, and the contents included in the subscription information are shown in Table 1 and Table 2;
  • the determining unit is configured to: after receiving the initial message sent by the AP, obtain, according to the identifier of the UE and the identifier of the AP, the subscription information of the UE and the AP from the database that holds the subscription information, and determine, according to the subscription information, the UE. Whether access to the AP is allowed, and the judgment result is notified to the AP. In the above description, it is used by CN ⁇ to detect whether the UE is allowed to access the AP. In the third embodiment of the present invention, the determination as to whether or not the access is permitted may also be performed on the AP side.
  • the processing speed can be significantly improved.
  • some CN side information needs to be transmitted through the Iu interface, so that the AP decides how to handle the UE's call or handover. See Table 7 for the contents of the Iu interface.
  • the information about the APs and cells allowed by these UEs can be stored in the CN and AP.
  • the Iu interface (strictly speaking List of AP identities
  • the interface between the AP and the CN can be used to implement some inter-working by passing the identity of the AP or Cell.
  • the IMSI of the UE can be delivered.
  • many Iu interface processes of UMTS use it. Then through the UE
  • IMSI finds relevant information on the CN or AP, AP, Cell list, and so on.
  • Private Indication identifies whether certain cells of an AP or AP are completely private and are not open to the public.
  • Public Indication identifies whether certain cells of an AP or AP are open to the public.
  • IS This information can be sent from the AP to the CN, OOS: IS/OOS at the beginning or in the middle of the call origination) so that the CN can decide how to handle the UE's call.
  • OOS IS/OOS at the beginning or in the middle of the call origination
  • the AP can decide to process the UE's call based on its own knowledge of the wireless environment.
  • the list of the cells or APs that the UE is allowed to access may be stored in the CN or the AP, and the list of the cells or APs that the UE is allowed to access may be stored in the CN or the AP.
  • This information is sent to the macro cell or AP. If it is sent to the macro cell, the macro cell can be assisted to switch the UE to the corresponding AP/Cel l that the UE can go to; and to the AP, the AP-AP can be switched.
  • the AP can be implemented by the AP to detect whether the UE is allowed to access without CN participation.
  • the AP keeps some subscription information (such as IMSI, TMSI, P-TMSI, etc.) of the UEs that are allowed to access. If the UE is not allowed to access, the direct RRC relocation to the macro cell includes:
  • the UE sends an RRC connection request to the AP;
  • the AP compares the UE subscription information stored in the RRC request message to check whether the currently requested UE is an allowed UE, and if it is allowed to connect The incoming UE completes the normal access procedure. If it is not a UE that is allowed to access, transfer to (3);
  • a corresponding control device for accessing a private base station is provided, and the device may be implemented by using an AP, and the device includes:
  • a receiving unit configured to receive a connection request sent by the UE
  • a determining unit configured to determine, according to the UE identifier (IMSI or TMSI, PTMSI) in the connection request And so on, comparing the UE subscription information saved by the device itself, and checking whether the UE currently requesting access is a UE that is allowed to access;
  • the notification unit is configured to notify the UE of the judgment result of the judgment unit.
  • control apparatus for accessing the private base station may further include a relocation unit, configured to relocate the UE to the UE if the determining unit determines that the UE is a UE that is not allowed to access. Adjacent macro cell.
  • the above control method is for the search period and whether the AP allows the UE to access. In the following, whether the AP is in the service coverage (00S) or the service coverage (IS) state, and access control when accessing the private base station is performed. The method is described in detail:
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the AP when the AP is located in the macro cell service coverage, the AP is in the IS state; when the AP part is located in the macro cell service coverage, and the part is not located in the macro cell service coverage, The AP is in the IS state/00S state; when the AP is not located in the macro cell service coverage, the AP is in the 00S state;
  • the AP may also support UMTS or GSM, and even support both UMTS and GSM modes. For this case, see the figure.
  • the corresponding scenario is as follows:
  • the AP is in the UMTS mode, and is not in the coverage of the UMTS and the GSM macro cell. In this case, the AP is in the 00S state for the two macro cells.
  • the AP is in the UMTS mode, and is not in the coverage of the UMTS macro cell, but is in the coverage of the GSM macro cell.
  • the AP is in the 00S state for the medical TS macro cell, but The GSM macro cell is in the IS state;
  • the access control method includes the following steps: Step 1201: Determine the current state of the AP. Specifically, it is to determine whether the AP is in the 00S state or the IS state, or the 00S/IS state. More specifically, the AP may be judged respectively for different types of macro cells. , for example, the situation shown in Figure 11a and Figure ib;
  • Step 1202 If it is determined that the AP is currently in the 00S state, the AP is assigned a separate routing area code (LAC) or routing area code (RAC); wherein, a separate identifier is assigned, the purpose of which is to make the AP not and other APs The identity is shared, so that the AP that shares the identity with the AP also erroneously rejects the UE access when the current AP rejects the UE access.
  • LAC routing area code
  • RAC routing area code
  • the UE can only make restricted services such as emergency calls, which can display information to the user. For example, "Business is limited, only urgent", prompting the user to call elsewhere. Otherwise, there is no other reason to reject the UE access, and the user may not know why his UE cannot access the AP if the received signal is good.
  • restricted services such as emergency calls, which can display information to the user. For example, "Business is limited, only urgent", prompting the user to call elsewhere. Otherwise, there is no other reason to reject the UE access, and the user may not know why his UE cannot access the AP if the received signal is good.
  • Step 1203 When the UE requests to access the AP, if it is determined that the UE is not allowed to access the AP, according to the state of the AP itself, the UE is prompted for the reason for the limited service or the UE is switched to the corresponding Community.
  • the specific implementation of step 1203 is as follows, wherein the AP has been assigned a separate RAC:
  • the UE only supports the UMTS mode, if the AP does not allow the UE to access, information such as "LA not al lowed" is returned to the UE, thereby enabling the UE to display information such as "service limited, emergency only" To the user;
  • the AP has two solutions when the AP does not allow the UE to access:
  • Manner 1 Returning information such as "LA not a l lowed" to the UE, so that the UE can display information such as "service restricted, emergency only" to the user;
  • Manner 2 The UE is allowed to camp in the AP, and when the UE attempts to obtain a service from the AP, the UE is handed over to the GSM macro cell.
  • the above step 1201 can be implemented as follows: A capability detection device similar to the terminal that collects signals from other base stations is installed for the AP, so that the AP can find out whether it is in a certain RAT publ ic Macro Ce ll of 00S or IS.
  • the AP reports the indication to the CN.
  • the AP needs to send the service status information (see Table 7) of the AP to the CN on the Iu interface (or the interface between the AP and the CN).
  • CN can report according to the AP.
  • the information is given to the UE as a suitable process: whether to switch to the neighboring macro cell or directly reject the access of the UE (when the AP is in the 00S state).
  • AP-centric processing The AP obtains the subscription information of the UE and the AP from the CN through the Iu interface (or the interface between the AP and the CN). The AP directly decides whether the UE should be handed over to the neighboring macro cell, or if the AP is directly denied access (for example, when the AP is 00S), so that only the emergency call service can be accepted.
  • the embodiment of the present invention also provides a corresponding control device for accessing a private base station, and the device may be implemented by using a network side device.
  • the network side device is a CN.
  • the CN further includes:
  • the state judging unit is configured to determine whether the AP is currently in a state that is not located in the 00S of the macro cell coverage, or is in the state of the IS in the coverage of the macro cell, or is in the IS/00S state of the part IS and part 00S;
  • the identifier allocation unit is configured to allocate a separate routing area identifier to the AP after the status determining unit determines that the AP is currently in the 00S state;
  • the error reason prompting unit is configured to: after the AP determines that the UE is not allowed to access, according to The state in which the AP is located indicates the reason why the service is restricted to the UE.
  • the apparatus may further include a switching unit, configured to switch the UE to the corresponding cell after the AP determines that the UE is not allowed to access.
  • the other carrier frequency or other radio access technologies refer to technologies such as GSM, medical TS, and LTE.

Abstract

La présente invention concerne, dans des modes de réalisation, un procédé, un système et un dispositif de commande pour accéder à un nœud privé (B). Le procédé est le suivant : - l'appareil côté réseau détermine la distance entre un équipement utilisateur et le nœud privé (B) après avoir reçu une requête de mise à jour d'emplacement envoyée par l'équipement utilisateur, - selon le résultat de la détermination, ajustement de la période de recherche du PLMN de réseau de mobilité terrestre public de l'équipement utilisateur et sa notification à l'équipement utilisateur, de sorte que l'équipement utilisateur réalise la recherche PLMN en fonction de la période de recherche ajustée. Le procédé, le système et le dispositif peuvent ajuster de manière flexible la période de recherche pendant laquelle l'UE réalise la recherche PLMN en fonction de l'emplacement actuel de l'UE, s'assurant ainsi que l'UE puisse trouver un nœud (B) privé et y accéder à temps lorsqu'il est proche du nœud privé (B) et réaliser la recherche PLMN aussi peu que possible lorsqu'il est éloigné d'un nœud privé (B) de manière à économiser la consommation énergétique de l'UE. Les modes de réalisation de l'invention prévoient également le moyen de commande correspondant, axé sur la question de l'aspect de limitation de mobilité.
PCT/CN2008/070853 2007-04-30 2008-04-30 Procédé, système et dispositif de commande pour accéder à un nœud privé b WO2008134982A1 (fr)

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