WO2010066165A1 - 切换处理方法、家庭基站网关及网络系统 - Google Patents

切换处理方法、家庭基站网关及网络系统 Download PDF

Info

Publication number
WO2010066165A1
WO2010066165A1 PCT/CN2009/075215 CN2009075215W WO2010066165A1 WO 2010066165 A1 WO2010066165 A1 WO 2010066165A1 CN 2009075215 W CN2009075215 W CN 2009075215W WO 2010066165 A1 WO2010066165 A1 WO 2010066165A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
home base
macro cell
terminal
target home
Prior art date
Application number
PCT/CN2009/075215
Other languages
English (en)
French (fr)
Inventor
陈新
邓明毅
田煦
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CNA2008102045711A external-priority patent/CN101466125A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09831442.0A priority Critical patent/EP2375807B1/en
Publication of WO2010066165A1 publication Critical patent/WO2010066165A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00838Resource reservation for handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835Determination of neighbour cell lists
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26Resource reservation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/24Interfaces between hierarchically similar devices between backbone network devices

Definitions

  • Switch processing method home base station gateway, and network system
  • the present invention relates to the field of communications technologies, and in particular, to a handover processing method, a home base station gateway, and a network system.
  • a home base station also known as a home base station (hereinafter referred to as a convenient base station, collectively referred to as a home base station), is characterized by small size, low power, and plug-and-play.
  • the macro-cell system is composed of standard network
  • the component consists of a mobile switching center (MSC), a radio network controller (RNC), a Node B (B), and a user equipment (UE, User Equipment).
  • the home base station network system consists of The home base station access gateway (AG, Access Gateway), the home base station, and the UE, the AG can be regarded as a proxy of the RNC, and is connected to the MSC of the macro cell, and the home base station can be considered equivalent to the RNC and the Node B, including the Node B.
  • the function of RNC but currently does not have Iur interface.
  • the embodiment of the invention provides a handover processing method, a home base station gateway and a network system, which can implement handover of a terminal from a macro cell to a home base station.
  • a handover processing method including: receiving, by a home base station gateway, a migration request message sent by a mobile switching center, where the migration request message indicates that the terminal switches to a home base station; and the home base station gateway filters the candidate target home base station, indicating The selected candidate target home base station activates the reserved handover resource, where the candidate target home base station is at least one of all target home base stations; and one target home base station in the selected candidate target home base station passes the pre-predetermined After the left handover resource establishes a connection with the terminal, receiving a migration completion message returned by the target home base station establishing a connection with the terminal.
  • a home base station gateway including: a receiving unit, configured to receive a migration request message sent by a mobile switching center, where the migration request message indicates that the terminal switches to a home base station; and a processing unit, configured to be in the receiving unit After receiving the migration request message, screening the candidate target home base station, instructing the selected candidate target home base station to activate the reserved handover resource, where the candidate target home base station is at least one of all target home base stations; And after the one target home base station in the selected candidate target home base station establishes a connection with the terminal through the reserved handover resource, and receives a migration completion message returned by the target home base station that establishes a connection with the terminal.
  • a network system including: a mobile switching center, configured to send a migration request message, where the migration request message indicates that the terminal switches to the home base station; and the home base station gateway is configured to receive the migration sent by the mobile switching center a request message; screening the candidate target home base station, instructing the selected candidate target home base station to activate the reserved handover resource, and using one of the selected target target home base stations to reserve the handover resource and the After the terminal establishes a connection, receiving a migration completion message returned by the target home base station establishing a connection with the terminal; and the plurality of home base stations serving as the target home base station, for activating the reserved handover resource according to the indication of the home base station gateway And one of the target home base stations establishes a connection with the terminal by using the reserved handover resource, and sends a migration completion message to the home base station gateway.
  • the technical solution of the embodiment of the present invention filters out candidate target home base stations in all the home base stations of the home base station network, so that the target home base station has a large range.
  • the handover condition is such that the target home base station can establish a connection with the terminal through the reserved handover resource, thereby implementing handover of the terminal from the macro cell to the home base station.
  • FIG. 1 is a flow chart of an embodiment of a handover processing method in an embodiment of the present invention
  • FIG. 2 is a flowchart of another embodiment of a handover processing method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of another embodiment of a handover processing method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a gateway of a home base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the embodiment of the invention provides a handover processing method, which can implement handover of a terminal from a macro cell to a home base station.
  • Step 101 A home base station gateway receives a migration request message sent by a mobile switching center, where the migration request message indicates that the terminal switches to a home base station;
  • the migration request message sent by the mobile switching center carries the home base station cell identification code and the macro cell identifier.
  • Step 102 The home base station gateway filters the candidate target home base station, and instructs the selected candidate target home base station to activate the reserved handover resource.
  • the candidate target home base station is selected according to the preset correspondence between the home base station cell identifier, the scrambling code, the home base station device identifier, and the macro cell identifier, and the candidate target home base station is At least one selected from all target home base stations.
  • Step 103 Pass, by one target home base station in the selected candidate target home base station After the reserved handover resource establishes a connection with the terminal, it receives a migration completion message returned by the target home base station that establishes a connection with the terminal.
  • This step is specifically as follows:
  • the parameter information about the physical channel reconfiguration returned by the selected candidate target home base station is received, and is transmitted to the original originating handover through the core network.
  • Access Network
  • the target home base station Receiving a migration completion message returned by the target home base station that establishes a connection with the terminal, where the target home base station establishing a connection with the terminal is the only home base station that receives the physical channel reconfiguration complete message, and the physical channel reconfiguration complete message is And the terminal sends the physical channel reconfiguration message to the selected candidate target home base station according to the physical channel reconfiguration message sent by the original access network, where the migration completion message is the only received physical channel reconfiguration complete message.
  • the home base station sends a physical channel reconfiguration message to the terminal to instruct the terminal to perform physical channel reconfiguration and establish a connection with the terminal, and then sends the signal to the home base station gateway.
  • the candidate target home base station is selected by the home base station gateway in all the home base stations of the home base station network, so that the range of the target home base station is greatly reduced, and the selected candidate target home base station is activated.
  • the reserved handover resource is used for the connection that may be established with the terminal.
  • one of the target home base stations is in accordance with the handover condition of the terminal, so that the target home base station can pass the reserved
  • the handover resource establishes a connection with the terminal, thereby implementing handover of the terminal from the macro cell to the home base station.
  • FIG. 2 it is a flowchart of another embodiment of a handover processing method according to an embodiment of the present invention.
  • the application network architecture in this embodiment includes an RNC, an MSC in a macro cell, a home base station gateway AG in a home base station network, and a home base station Femtocdl.
  • the connection relationship of each network element in the above macro network is a standard connection.
  • the home base station is configured as a neighboring cell according to the method provided in the embodiment of the present invention.
  • the selection of the target home base station is implemented according to the setting algorithm, and the handover resource is reserved on the home base station.
  • Figure 2 specifically includes:
  • Step 201 The UE in the macro cell triggers a handover event, and sends a measurement report to the RNC.
  • a handover event for example, a 2D event that triggers an inter-frequency handover occurs, and sends a measurement report to the RNC, where the measurement report includes The scrambling code of the home base station requires switching to be a neighboring area Home base station.
  • the home base station Before the UE in the macro cell triggers the handover event, the home base station is pre-configured as a neighboring cell in the macro cell RNC.
  • the process of configuring a home base station as a neighbor in a macro cell RNC is as follows:
  • the home base station needs to be configured as a neighboring cell.
  • the number of the home base stations is very large, and in general, there are more than 32.
  • the embodiment of the present invention adopts a new method to solve the problem of the neighboring cell configuration of the home base station, as follows:
  • the home base station uses a limited number of scrambling codes, for example, generally less than 10, which can be determined after negotiation with the operator, and the scrambling code used by the home base station is different from the scrambling code used by the macro cell;
  • the neighboring areas of the home base station are uniformly configured according to the determined home base station cell identification code Femtocell_cell_ID, that is, in the same frequency and inter-frequency neighboring areas of the macro cell, the configurations are the same. See Table 1 for illustration, but not limited to, using 7 scrambling codes.
  • Table 1 Family base station cell identification code and scrambling code correspondence table configured in the macro cell
  • step 202 the RNC confirms that the handover target is the home base station, and sends a migration request message (Relocation Required) to the MSC, where the target cell is the home base station.
  • step 203 The MSC determines that the target cell is the home base station, and the AG Send a migration request message (Relocation Request);
  • the MSC determines, according to the received migration request message, that the target cell to be handed over by the UE is a home base station, and sends a migration request message (Relocation Request) to the AG, where the UE IMSI (International Mobile Subscriber Identity, International Mobile Subscriber Identity, Macro Cell Identity, Home Base Station Cell ID.
  • IMSI International Mobile Subscriber Identity, International Mobile Subscriber Identity, Macro Cell Identity, Home Base Station Cell ID.
  • Step 204 The AG filters the candidate target home base stations according to the setting algorithm, and forwards the migration request message to the selected candidate target home base stations.
  • the AG After receiving the migration request message, the AG filters out the candidate target home base station according to the setting algorithm, and obtains the target home base station in the minimum range.
  • a database for completing the search target home base station may be established on the AG, and a list of related information is established, including the following information:
  • Femtocell_cell_ID The home base station cell identification code is the same as the Femtocell-cell-ID configured on the macro cell.
  • SC Scrambling code used by each home base station.
  • N_cell_ID The macro cell identifier automatically configured by the home base station.
  • Femtocell EI The home base station equipment identification code used to uniquely determine the physical equipment of the home base station.
  • IMSI International Mobile Subscriber Identity
  • IMSI International Mobile Subscriber Identity
  • Table 2 is the correspondence table between the home base station cell identification code and the scrambling code configured in the AG.
  • Table 2 the correspondence between the home base station cell identification code and the scrambling code is established. Knowing the home base station cell identification code, the corresponding interference can be known. code.
  • Table 3 establishes which household base stations each scrambling code corresponds to.
  • the scrambling code can be used to find a specific home base station.
  • Table 4 establishes a macro cell neighbor list corresponding to each home base station. Each home base station automatically detects the neighbor cell (macro cell) when it is in the automatic network rule. Knowing the macro cell identity N_CELL_ID, you can know the corresponding home base station.
  • Table 5 records the mode of each home base station (Open or Closed, open or closed mode). When selecting the home base station, if it is working in the closed mode, the core alignment list is required. FemtocellEI mode Model
  • each home base station has an admission list.
  • For the closed mode home base station only the UEs on the admission list are allowed to cut into the home base station.
  • the AG receives a relocation request message (Relocation Request), which carries a UE IMSI, a macro cell identifier, and a home base station cell identifier. Based on these parameters, the AG searches in the database and quickly finds the target home base station.
  • relocation Request a relocation request message
  • the specific process is as follows:
  • the AG lookup table 2 obtains the scrambling code SC of the home base station according to the home base station cell identification code Femtocdl_cell_ID, and according to the scrambling code SC lookup table 3 (the home base station device identification code and The scrambling code allocation table) obtains a corresponding group of home base stations, and then looks up Table 4 (home base station neighboring area configuration table), and further filters the home base station obtained by the lookup table 3 according to the macro cell identifier N_CELL_ID, and obtains the minimum Target home base station within range.
  • Table 4 home base station neighboring area configuration table
  • the migration request message (Relocation Request) is forwarded to the selected candidate target home base stations.
  • Step 205 The selected candidate target home base station opens the transceiver according to the reserved handover resource.
  • the target home base station that has received the migration request message establishes a connection with the AG, activates the reserved handover resource according to the migration request message sent by the AG, and completes the establishment of the wireless link, the uplink and downlink synchronization, and the transmission and reception according to the reserved handover resource.
  • the machine then sends a Relocation request Acknowledge message to the AG.
  • the screening request is filtered by sending a migration request message, because a target home base station is required to prepare resources, and one of the target home base stations can be connected to the UE, and the home base station generally reserves the handover resource.
  • the candidate target home base station activates the reserved handover resources (resources required for establishing a radio link connection), and the resources include information required for the physical channel reconfiguration message (PHYSICAL CHANNEL RECONFIGURATION), such as frequency, timing, etc. , encapsulate this information in the migration request response message.
  • AMR Adaptive Multi-Rate
  • the AG After receiving the migration request response message returned by the home base station, the AG combines the information to generate a migration request response message that is finally sent to the core network.
  • Step 206 The AG returns a migration request response message to the MSC.
  • Step 207 The MSC sends a migration command (Relocation Cmd) to the RNC.
  • Step 208 The RNC sends a handover command (ie, a physical channel reconfiguration message) to the UE.
  • a handover command ie, a physical channel reconfiguration message
  • the RNC After receiving the migration command (Relocation Cmd), the RNC sends a Physical Channel Reconfiguration message to the UE.
  • Step 209 The UE performs physical channel reconfiguration according to the received physical channel reconfiguration message, establishes synchronization with the target home base station, and sends a physical channel reconfiguration complete message to the target home base station.
  • Step 210 The home base station and the UE that receive the physical channel reconfiguration complete message perform a physical channel reconfiguration process again, and send a migration completion message to the AG.
  • the physical channel reconfiguration complete message sent by the UE can be received only after the channel configuration of the one of the home base stations is met, and the physical channel reconfiguration complete message is received in the selected candidate target home base station.
  • the home base station retransmits the physical channel reconfiguration message to the UE, that is, the process of performing the physical channel reconfiguration again, for indicating that the UE releases the reserved reserved physical channel resource, and the home base station is the UE actually switching.
  • the target home base station whose physical channel resource is the current available physical channel resource. Therefore, through this interaction process, the unique target home base station is determined and a connection with the terminal is established.
  • the unique target home base station After receiving the physical channel reconfiguration complete message returned by the UE, the unique target home base station sends a migration complete message to the AG.
  • Step 211 The AG learns the unique target home base station according to the received migration completion message, sends a migration completion message to the MSC, and sends a message for releasing the connection with the AG to the target home base station that is not connected to the UE.
  • the AG may not issue a message for releasing the connection with the AG to other target home base stations that are not connected to the UE ((ie, equivalent to releasing the reserved handover resources)), but by these target families. After the base station does not receive the physical channel reconfiguration complete message after the set time, the base station automatically releases the connection with the AG.
  • Step 212 The MSC releases the macro cell resource according to the received migration complete message.
  • the MSC sends an Iu release message to the RNC, and the RNC returns an Iu Release Complete message to the MSC, and the entire handover process ends.
  • FIG. 3 is a flowchart of a handover processing method according to another embodiment of the present invention.
  • Step 301 The UE in the macro cell triggers a handover event, and sends a measurement report to the RNC, where the measurement report includes a difference between the system frame number SFN of the home base station that is the handover target and the SFN of the source macro cell where the terminal is located, where The home base station of the handover object is the home base station to be screened.
  • Step 302 The RNC confirms that the handover target is a home base station according to the content of the measurement report, and sends a migration request message (Relocation Required) to the MSC, where the message includes a difference between the SFN of the home base station that is the handover target and the SFN of the source macro cell.
  • a migration request message (Relocation Required)
  • Step 303 The MSC determines that the target cell is a home base station, and sends a migration request message to the AG. (Relocation Request).
  • the MSC determines, according to the received migration request message, that the target cell to be handed over by the UE is a home base station, and sends a relocation request message (Relocation Request) to the AG, where the SFN of the home base station that is the handover target and the SFN of the source macro cell are carried. value.
  • Relocation Request a relocation request message
  • Step 304 The AG filters the candidate target home base stations, and forwards the migration request message to the selected candidate target home base stations.
  • a list of information for completing the search target home base station may be established on the AG, which includes the following information:
  • Femtocell EI The home base station equipment identification code used to uniquely determine the physical equipment of the home base station.
  • the SFN offset of the home base station is the difference between the SFN of the home base station and the SFN of the neighboring macro cell.
  • the neighbor macro cell is a macro area having a neighbor relationship with the home base station.
  • a home base station has multiple macro cells (ie, neighboring macro cells) with its neighbor relationship.
  • the home base station or macro cell When the home base station or macro cell is initialized, reset, or reconfigured, the home base station performs SFN measurement on each neighboring macro cell. Then, the SFN_Offset of the home base station is calculated: the SFN_Offset of the home base station is the deviation value between the SFN of the home base station and the SFN of the neighboring macro cell, and the calculation result is reported to the AG. Since a home base station has multiple macro cells with its neighbor relationship, a group of SFN-Offsets of the home base station is reported to the AG.
  • the eNB performs the SFN and the locality of each neighboring macro cell.
  • the SFN of the home base station is reported to the AG, and the SFN of the home base station is calculated by the AG.
  • Offset The SFN of the home base station is the offset value of the SFN of the home base station and the SFN of each neighboring macro cell. Since a home base station has multiple macro cells with neighboring cell relationships, the AG calculates a set of SFN-Offsets of the home base station.
  • Another method is: configuring different SFN time starting points for each home base station covered by a macro cell, and calculating SFN of the home base station - Offset: SFN of the home base station - Offset is the SFN of the home base station and the SFN of each neighboring macro cell Deviation. Since each home base station has a plurality of macro cells having a neighbor relationship with it, the AG calculates a set of SFN_Offsets with respect to each home base station.
  • the method for the AG to screen the candidate target home base station is as follows:
  • the SFN_Offset of the home base station matching the difference between the SFN of the home base station and the SFN of the source macro cell, which is the target of the handover, is searched for, and the home base station device corresponding to the SFN_Offse of the matched home base station is targeted.
  • Home base station the SFN_Offset of the home base station matching the difference between the SFN of the home base station and the SFN of the source macro cell, which is the target of the handover.
  • the SFN_Offset of the home base station that matches the difference between the SFN of the home base station and the source SFN of the source macro cell in the embodiment of the present invention may be: SFN_Offset of the home base station having the smallest difference from the difference.
  • the associated information list can also be as shown in Table 8:
  • the migration request message received by the AG needs to include: a difference between the SFN of the home base station that is the handover target and the SFN of the source macro cell, and a cell ID of the source macro cell where the UE is currently located, and the AG selects candidates according to the information.
  • the target home base station the specific implementation is as follows:
  • the SFN_Offset of the home base station matching the difference between the SFN of the home base station as the handover target and the SFN of the source macro cell;
  • the home base station device corresponding to the source macro cell identifier and the matched SFN_Offset of the home base station is determined as the target home base station.
  • the associated information list can also be as shown in Table 9:
  • the migration request message received by the AG needs to include the difference between the SFN of the home base station that is the handover target and the SFN of the source macro cell, the Cell ID of the source macro cell where the UE is currently located, and the home base station cell identifier that is the handover target. Based on the information, the AG filters the candidate target home base stations.
  • the specific implementation is as follows:
  • the offset value of the SFN of the home base station and the SFN of the neighboring macro cell according to the identifier of the home base station device, the neighboring macro cell identifier, the home base station cell identifier, and the SFN offset value of the neighboring macro cell
  • the correspondence between the four types is determined as the target home base station with the source macro cell identifier, the matched SFN_Offset of the home base station, and the home base station device corresponding to the home base station cell identification code of the handover target.
  • Steps 305-312 are similar to steps 205-212 and are not mentioned here.
  • the candidate target home base station is selected, so that the range of the target home base station is greatly reduced, and the screening is activated through activation.
  • the candidate target home base station reserves the handover resources for the connection that may be established with the terminal.
  • one of the target home base stations is The handover condition of the terminal is met, so that the target home base station can establish a connection with the terminal through the reserved handover resource, thereby implementing handover of the terminal from the macro cell to the home base station.
  • the techniques for screening the candidate target home base station for the AG are applicable not only to the handover from the macro cell to the home base station, but also to other scenarios in which the candidate target home base station needs to be filtered.
  • the candidate target home base station by selecting the candidate target home base station according to the pre-configured parameter correspondence relationship in all the home base stations of the home base station, the range of the target home base station is greatly reduced, and the selected target base station is further filtered.
  • the candidate target home base station reserves the handover resource for the connection that may be established with the terminal.
  • one of the target home base stations is in accordance with the handover condition of the terminal, so that the target home base station can The connection is established with the terminal through the reserved handover resource, thereby realizing the handover of the terminal from the macro cell to the home base station.
  • the home base station gateway may send a message for releasing the connection with the home base station to the target home base station that is not connected to the UE, or the target home base station that has not completed the connection with the UE does not receive the physical channel after the set time.
  • the configuration completion message automatically releases the connection with the home base station gateway.
  • the embodiment of the present invention further provides a home base station gateway and a network system.
  • FIG. 4 is a schematic structural diagram of a gateway of a home base station according to an embodiment of the present invention.
  • the home base station gateway includes:
  • the receiving unit 401 is configured to receive a migration request message sent by the mobile switching center, where the migration request message indicates that the terminal switches to the home base station;
  • the processing unit 402 is configured to: after the receiving unit 401 receives the migration request message, filter the candidate target home base station, and instruct the selected candidate target home base station to activate the reserved handover resource; and complete unit 405, configured to After the selected target home base station establishes a connection with the terminal through the reserved handover resource, the selected target home base station receives the migration completion message returned by the target home base station that establishes the connection with the terminal.
  • the home base station gateway further includes: a storage unit 403.
  • the storage unit 403 is configured to store a correspondence between a home base station cell identifier, a scrambling code, a home base station cell identifier, and a macro cell identifier.
  • the migration request message received by the receiving unit 401 is carried.
  • the home base station cell identification code and the macro cell identifier when the processing unit 402 filters the candidate target home base station, according to the home base station cell identifier, the scrambling code, the home base station cell identifier, and the macro cell identifier stored by the storage unit 403 Correspondence, select the target home base station.
  • the processing unit 402 selects the target home base station according to the correspondence between the home base station cell identifier, the scrambling code, the home base station cell identifier, and the macro cell identifier stored in the storage unit 403, as follows:
  • Determining a corresponding scrambling code according to the home base station cell identifier, determining a corresponding home base station cell identification code according to the determined scrambling code, and selecting a corresponding home base station cell identifier according to the determined home base station cell identification code according to the macro cell identifier The code obtains the target home base station corresponding to the home base station cell identification code.
  • the method further includes: if the working mode of the target home base station corresponding to the obtained home base station cell identifier is the off mode, further permitting the access terminal according to the closed mode Filter candidate target home base stations.
  • the storage unit 403 is configured to save a correspondence between the SFN deviation value of the home base station device and the neighboring macro cell, and the identifier of the home base station device, where the migration request message received by the receiving unit 401 is included as a handover target.
  • the processing unit 402 is configured to search for the migration request message in the SFN offset value of the home base station device and the neighbor macro cell saved by the storage unit 403 Determining the SFN deviation value of the difference, according to the correspondence between the SFN deviation value of the home base station device and the neighboring macro cell, and the identification code of the home base station device, determining the matching SFN deviation value corresponding to The home base station device serves as a target home base station.
  • the SFN_Offset of the home base station that matches the difference between the SFN of the home base station and the source SFN of the source macro cell in the embodiment of the present invention may be: SFN_Offset of the home base station having the smallest difference from the difference.
  • the storage unit 403 may be configured to store an identifier of the home base station device, a neighboring macro cell identifier, and a correspondence between the home base station device and the SFN offset value of the neighboring macro cell.
  • the migration request message received by the receiving unit 401 includes the difference between the SFN of the home base station to be the handover target and the SFN of the source macro cell where the terminal is located, and the Cell ID of the source macro cell where the UE is currently located;
  • the home base station device saved in the storage unit 403 Finding, by the SFN offset value of the neighboring macro cell, an SFN offset value that matches the difference included in the migration request message, according to the identifier of the home base station device, the neighboring macro cell identifier, the home base station device, and the neighbor macro
  • the correspondence between the three SFN offset values of the cell determines the home base station device corresponding to the source macro cell identifier and the matched SFN_Offset of the home base station as the target home base station.
  • the storage unit 403 may be configured to store a correspondence between the identifier of the home base station device, the neighboring macro cell identifier, the home base station cell identifier, and the SFN offset value of the neighbor base station and the neighboring macro cell.
  • the migration request message received by the receiving unit 401 includes the difference between the SFN of the home base station to be the handover target and the SFN of the source macro cell where the terminal is located, the Cell ID of the source macro cell where the UE is currently located, and the home base station as the handover target.
  • the processing unit 402 is configured to search, in the SFN offset value of the home base station device and the neighboring macro cell that is stored in the storage unit 403, an SFN offset value that matches the difference included in the migration request message, according to the home base station. Determining the correspondence between the identifier of the device, the neighboring macro cell identifier, the home base station cell identifier, and the SFN offset value of the neighboring macro cell, and determining the source macro cell identifier and the matching home base station SFN_Offset, as the target of the home base station device corresponding to the home base station cell identification code of the handover target Chambers base station.
  • the home base station gateway further includes: a release unit 404.
  • the releasing unit 404 is configured to, after the completion unit 405 receives the migration completion message returned by the target home base station that establishes the connection with the terminal, to indicate that the target home base station that is not connected with the terminal in the selected candidate target home base station is released and The connection of the home base station gateway.
  • FIG. 5 is a schematic structural diagram of a network system according to an embodiment of the present invention.
  • the network system includes: a mobile switching center 501, a home base station gateway 502, and a home base station 503 (two examples are illustrated in the figure).
  • the home base station gateway 502 has the structure shown in Fig. 4 and will not be described again here.
  • the mobile switching center 501 is configured to send a migration request message, where the migration request message indicates that the terminal switches to the home base station;
  • the home base station gateway 502 is configured to receive the migration request message sent by the mobile switching center 501, and filter the candidate target home base station, and instruct the selected candidate target home base station to activate the reserved handover resource, where the selected candidate is selected. After the target home base station in the target home base station establishes a connection with the terminal through the reserved handover resource, the target home base station that has established the connection with the terminal returns the migration. Become a message;
  • a target home base station configured to act as a target home base station, and activate a reserved handover resource according to the indication of the home base station gateway 502, where a target home base station establishes a connection with the terminal through the reserved handover resource, and connects to the home base station Gateway 502 sends a migration complete message.
  • the migration request message sent by the mobile switching center 501 carries the home base station cell identification code and the macro cell identifier.
  • the home base station gateway 502 filters the candidate target home base station, it is based on the preset home base station cell identification code, scrambling code, and family. The correspondence between the base station cell identification code and the macro cell identifier is selected, and the target home base station is selected.
  • the migration request message sent by the mobile switching center 501 carries the difference between the system frame number SFN of the home base station that is the handover target and the SFN of the source macro cell where the terminal is located; when the home base station gateway 502 filters the candidate target home base station And searching for the SFN deviation value matching the difference included in the migration request message in the SFN deviation value of the pre-stored home base station device and the neighboring macro cell, according to the SFN deviation value of the home base station device and the neighboring macro cell, Determining a correspondence between the identification codes of the home base station devices, and determining, as the target home base station, the home base station device corresponding to the matched SFN offset value.
  • the migration request message sent by the mobile switching center 501 further carries the source macro cell identifier where the terminal is located; and when the home base station gateway 502 filters the candidate target home base station, the pre-stored home base station device and the neighbor macro are Finding, by the SFN offset value of the cell, an SFN offset value that matches the difference included in the migration request message, according to the identifier of the home base station device, the neighboring macro cell identifier, the SFN of the home base station device and the neighboring macro cell.
  • the correspondence between the three offset values determines that the home base station device corresponding to the source macro cell identifier and the matched SFN offset value of the terminal is the target home base station.
  • the migration request message sent by the mobile switching center 501 further carries the source macro cell identifier where the terminal is located and the home base station cell identification code that is the handover target; when the home base station gateway 502 filters the candidate target home base station, Finding, by the pre-stored SFN offset value of the home base station device and the neighboring macro cell, an SFN offset value that matches the difference included in the migration request message, according to the identifier of the home base station device, the neighboring macro cell identifier, and the home base station cell.
  • the base station equipment serves as the target home base station.
  • the home base station gateway 502 after the selected candidate target home base station activates the reserved handover resource, receives the parameter information about the physical channel reconfiguration returned by the selected candidate target home base station, and transmits the parameter information about the physical channel reconfiguration.
  • the connection of the base station after the selected candidate target home base station activates the reserved handover resource, receives the parameter information about the physical channel reconfiguration returned by the selected candidate target home base station, and transmits the parameter information about the physical channel reconfiguration.
  • the home base station gateway 502 After receiving the migration completion message returned by the target home base station that establishes the connection with the terminal, the home base station gateway 502 indicates that the target home base station that is not connected with the terminal in the selected candidate target home base station releases the connection with the home base station gateway. Or the target home base station that is not connected to the terminal in the selected candidate target home base station releases the connection with the home base station gateway after the set time is reached.
  • the technical solution of the embodiment of the present invention filters the candidate target home base station in all the home base stations of the home base station by using the home base station gateway, so that the range of the target home base station is greatly reduced, and the candidate target family selected by the activation is further activated.
  • the handover resource reserved by the base station is used for the connection that may be established with the terminal.
  • one of the target home base stations is in accordance with the handover condition of the terminal, so that the target home base station can reserve
  • the handover resource establishes a connection with the terminal, thereby implementing handover of the terminal from the macro cell to the home base station.
  • the technical solution of the embodiment of the present invention may send a message for releasing the connection with the home base station gateway to the target home base station that is not connected to the UE, or may not receive the target home base station that is not connected to the UE after the set time.
  • the connection to the home base station gateway is automatically released.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

切换处理方法、 家庭基站网关及网络系统
本申请要求于 2008 年 12 月 10 日提交中国专利局、 申请号为 200810204571.K 发明名称为 "切换处理方法、 家庭基站网关及网络系统" 的 中国专利申请, 以及于 2009 年 9 月 28 日提交中国专利局、 申请号为 200910177421.0、 发明名称为 "切换处理方法、 家庭基站网关及网络系统" 的 中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域,具体涉及一种切换处理方法、 家庭基站网关及 网络系统。
背景技术
在通信网络中, 在保证网络容量和质量的前提下, 提高网络覆盖, 是一个 比较重要的问题, 因此各种形态基站相继出现、 如宏基站、 微蜂窝基站、 分布 式基站等。 为了解决室内覆盖的薄弱环节, 目前出现了一种毫微微蜂窝基站
( Femtocell ), 也称为家庭基站(后续为描述的方便, 统称为家庭基站)这种 家庭基站的特点是体积小、 功率小、 即插即用。
如果在使用家庭基站的场景下, 室外存在第三代(3G, The 3rd Generation ) 通信系统宏网络的宏小区, 室内存在家庭基站网络, 在实际网络连接配置上, 宏小区系统是由标准网元组成, 即由移动交换中心 (MSC, Mobile Switching Centre )、无线网络控制器(RNC, Radio Network Controller )、节点 B ( Node B )、 用户终端( UE , User Equipment )组成, 家庭基站网络系统由家庭基站接入网 关(AG, Access Gateway )、 家庭基站、 UE组成, AG可以认为是 RNC的代 理, 其与宏小区的 MSC相连, 家庭基站可认为等效于 RNC和 Node B, 包括 了 Node B和 RNC的功能, 但目前不具备 Iur接口。
在使用家庭基站的场景下需要统一考虑服务一致性的问题, 提供终端 UE 的移动性管理, 实现宏小区和家庭基站之间的双向切换。 当 UE需要从家庭基 站切换到宏小区时, 由于家庭基站已经具备接收机功能, 能够实现相邻的宏小 区的自动配置, 因此已经可以实现这种切换过程。那么另外需要解决的就是宏 小区向家庭基站切换的问题。 UE从宏小区向家庭基站切换, 可以看成是不同 RNC间的切换。 现有技术暂时还无法实现终端从宏小区到家庭基站的切换。
发明内容
本发明实施例提供了一种切换处理方法、 家庭基站网关及网络系统, 能够 实现终端从宏小区到家庭基站的切换。
一方面, 提供了一种切换处理方法, 包括: 家庭基站网关接收移动交换中 心发送的迁移请求消息, 所述迁移请求消息表明终端向家庭基站切换; 所述家 庭基站网关筛选候选目标家庭基站,指示所述筛选出的候选目标家庭基站激活 预留的切换资源, 所述候选目标家庭基站为全部目标家庭基站中的至少一个; 在所述筛选出的候选目标家庭基站中的一个目标家庭基站通过预留的切换资 源与所述终端建立连接后,接收与所述终端建立连接的目标家庭基站返回的迁 移完成消息。
另一方面, 提供一种家庭基站网关, 包括: 接收单元, 用于接收移动交换 中心发送的迁移请求消息, 所述迁移请求消息表明终端向家庭基站切换; 处理 单元, 用于在所述接收单元接收到所述迁移请求消息后, 筛选候选目标家庭基 站,指示所述筛选出的候选目标家庭基站激活预留的切换资源, 所述候选目标 家庭基站为全部目标家庭基站中的至少一个; 完成单元,用于在所述筛选出的 候选目标家庭基站中的一个目标家庭基站通过预留的切换资源与所述终端建 立连接后, 接收与所述终端建立连接的目标家庭基站返回的迁移完成消息。
再一方面, 提供一种网络系统, 包括: 移动交换中心, 用于发送迁移请求 消息, 所述迁移请求消息表明终端向家庭基站切换; 家庭基站网关, 用于接收 所述移动交换中心发送的迁移请求消息; 筛选候选目标家庭基站,指示所述筛 选出的候选目标家庭基站激活预留的切换资源 ,在所述筛选出的候选目标家庭 基站中的一个目标家庭基站通过预留的切换资源与所述终端建立连接后,接收 与所述终端建立连接的目标家庭基站返回的迁移完成消息; 若干家庭基站,作 为目标家庭基站,用于^ ^据所述家庭基站网关的指示激活预留的切换资源,其 中一个目标家庭基站通过预留的切换资源与所述终端建立连接,并向所述家庭 基站网关发送迁移完成消息。
上述技术方案可以看出,本发明实施例技术方案通过 AG在家庭基站网络 的所有家庭基站中, 筛选出候选目标家庭基站, 就使得目标家庭基站的范围大 大缩小,另外通过激活筛选出的候选目标家庭基站所预留的切换资源以用于可 能与终端建立的连接,在初步筛选出的候选目标家庭基站中,其中有一个目标 家庭基站是符合终端的切换条件,这样该目标家庭基站就可以通过预留的切换 资源与终端建立连接 , 从而实现了终端从宏小区到家庭基站的切换。
附图说明
图 1是本发明实施例中切换处理方法一个实施例流程图;
图 2是本发明实施例中切换处理方法另一实施例流程图;
图 3是本发明实施例中切换处理方法另一实施例流程图;
图 4是本发明实施例家庭基站网关结构示意图;
图 5是本发明实施例网络系统结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提供一种切换处理方法,能够实现终端从宏小区到家庭基站 的切换。
请参阅图 1, 是本发明实施例中切换处理方法一个实施例流程图, 包括: 步骤 101、 家庭基站网关接收移动交换中心发送的迁移请求消息, 所述迁 移请求消息表明终端向家庭基站切换;
移动交换中心发送的迁移请求消息携带家庭基站小区识别码 、 宏小区标 识。
步骤 102、 家庭基站网关筛选候选目标家庭基站, 指示所述筛选出的候选 目标家庭基站激活预留的切换资源;
家庭基站网关筛选候选目标家庭基站时,是根据预设的家庭基站小区识别 码 、 扰码、 家庭基站设备识别码、 宏小区标识之间的对应关系, 选择候选目 标家庭基站 , 候选目标家庭基站为从全部的目标家庭基站中筛选出的至少一 个。
步骤 103、 在所述筛选出的候选目标家庭基站中的一个目标家庭基站通过 预留的切换资源与终端建立连接后,接收与终端建立连接的目标家庭基站返回 的迁移完成消息。
该步骤具体为:
在指示所述筛选出的候选目标家庭基站激活预留的切换资源后 ,接收所述 筛选出的候选目标家庭基站返回的关于物理信道重配置的参数信息,并通过核 心网传送到发起切换的原接入网;
接收与终端建立连接的目标家庭基站返回的迁移完成消息,所述与终端建 立连接的目标家庭基站是唯一接收到物理信道重配置完成消息的家庭基站,所 述物理信道重配置完成消息是所述终端根据原接入网发出的物理信道重配置 消息, 完成物理信道重配置后向所述筛选出的候选目标家庭基站发送, 所述迁 移完成消息是所述唯一接收到物理信道重配置完成消息的家庭基站通过再次 向所述终端发送物理信道重配置消息 ,指示所述终端再进行物理信道重配置而 建立起与所述终端的连接后, 向所述家庭基站网关发送。
从本实施例可以看出,通过家庭基站网关在家庭基站网络的所有家庭基站 中, 筛选出候选目标家庭基站, 就使得目标家庭基站的范围大大缩小, 另外通 过激活筛选出的候选目标家庭基站所预留的切换资源以用于可能与终端建立 的连接,在初步筛选出的候选目标家庭基站中,其中有一个目标家庭基站是符 合终端的切换条件,这样该目标家庭基站就可以通过预留的切换资源与终端建 立连接, 从而实现了终端从宏小区到家庭基站的切换。
以下更具体介绍本发明实施例技术方案。
请参阅图 2, 是本发明实施例中切换处理方法另一实施例流程图。
本实施例中的应用网络架构, 包括宏小区中的 RNC、 MSC, 家庭基站网 络中的家庭基站网关 AG、 家庭基站 Femtocdl。 上述宏网络中各网元的连接关 系, 是标准连接。 在宏小区中, 按照本发明实施例提出的方法配置家庭基站作 为邻区, 在 AG上, 根据设定算法实现目标家庭基站的选择, 在家庭基站上预 留切换资源。 图 2中具体包括:
步骤 201、 宏小区中的 UE触发切换事件, 并向 RNC发送测量报告; 当处于宏小区中的 UE触发切换事件, 例如发生触发异频切换的 2D事件, 向 RNC发送测量报告, 测量报告中含有家庭基站的扰码,要求切换到作为邻区 的家庭基站。
宏小区中的 UE触发切换事件之前, 在宏小区 RNC中已经预先配置家庭基 站作为邻区。 在宏小区 RNC中配置家庭基站作为邻区的过程如下:
在宏小区中, 需要将家庭基站配置为邻区。 由于家庭基站的数量非常多, 一般情况下,都会超过 32个,本发明实施例采用新的办法解决家庭基站邻区配 置问题, 具体如下:
1 ) 约定家庭基站使用有限个扰码, 例如一般情况下使用 10个以下, 这可 以与运营商协商后确定, 并且家庭基站使用的扰码与宏小区使用的扰码不相 同;
2 )确定每个扰码对应一个家庭基站小区识别码 Femtocell— cell— ID;
3 )在所有宏小区, 按照确定的家庭基站小区识别码 Femtocell— cell— ID, 统一配置家庭基站邻区, 即在宏小区同频、 异频邻区中, 配置相同。 参见表 1 所示, 以使用 7个扰码举例说明但不局限于此。
Figure imgf000007_0001
表 1 宏小区中配置的家庭基站小区识别码与扰码对应表
步骤 202、 RNC根据测量报告的内容, 确认切换对象为家庭基站, 向 MSC 发送迁移要求消息( Relocation Required ), 其中指示目标小区为家庭基站; 步骤 203、 MSC判断出目标小区为家庭基站, 向 AG发送迁移请求消息 ( Relocation Request );
MSC根据接收的迁移要求消息,判断出 UE要切换的目标小区为家庭基站, 向 AG发送迁移请求消息( Relocation Request ),其中携带 UE IMSI ( International Mobile Subscriber Identity, 国际移动用户识别码), 宏小区标识, 家庭基站小 区识别码 。
步骤 204、 AG根据设定算法筛选出候选目标家庭基站, 向这些筛选出的候 选目标家庭基站转发迁移请求消息;
AG接收迁移请求消息后, 根据设定算法筛选出候选目标家庭基站, 得到 最小范围内的目标家庭基站。
为了在 AG实现选择目标家庭基站,可以在 AG上建立用于完成搜索目标家 庭基站的数据库, 建立若干关联信息列表, 包括有如下信息:
Femtocell— cell— ID :家庭基站小区识别码,与配置在宏小区上的 Femtocell —cell— ID相同。
SC: 每个家庭基站使用的扰码。
N— cell— ID: 家庭基站自动配置的宏小区标识。
Femtocell EI: 家庭基站设备识别码, 用以唯一确定家庭基站物理设备。 IMSI ( International Mobile Subscriber Identity ): 国际移动用户识别码, 用 于唯一标识 UE。
数据库中相关列表具体如下:
请参阅表 2, 为 AG中配置的家庭基站小区识别码 与扰码对应表, 在表 2 建立了家庭基站小区识别码 与扰码的对应关系, 知道家庭基站小区识别码 , 就可以知道对应扰码。
Figure imgf000008_0001
请参阅表 3, 为家庭基站设备识别码与扰码分配表,表 3建立每个扰码对应 于哪些使用的家庭基站, 通过扰码, 可以查到具体的家庭基站。
Figure imgf000009_0001
表 3
请参阅表 4, 为家庭基站邻区配置表,表 4建立每个家庭基站对应的宏小区 邻区列表, 每个家庭基站在自动网规时, 都会自动检测产生邻区 (宏小区)。 知道宏小区标识 N— CELL— ID , 就可以知道对应的家庭基站。
Figure imgf000009_0002
表 4
请参阅表 5 , 为家庭基站模式列表,表 5记录了每个家庭基站的模式(Open 或 Closed, 打开或关闭模式), 在选择家庭基站时, 若是工作在 closed模式, 需 要核对准入列表。 FemtocellEI 模式 Model
FemtocellEI 1 Open或 Closed
FemtocellEI 2 Open或 Closed
··· ····
FemtocellEI N Open或 Closed 表 5
请参阅表 6, 为准入列表, 每个家庭基站都有一个准入列表, 对于 closed 模式的家庭基站 , 只有在准入列表上的 UE才被允许切入到该家庭基站。
Figure imgf000010_0002
Figure imgf000010_0001
AG接收迁移请求消息(Relocation Request ) , 其中携带有 UE IMSI, 宏小 区标识, 家庭基站小区识别码 。 AG根据这些参数, 在数据库中进行搜索, 快 速寻找目标家庭基站, 具体过程如下:
AG查找表 2 (家庭基站小区识别码 与扰码对应表), 根据家庭基站小区 识别码 Femtocdl—cell— ID得到家庭基站的扰码 SC, 根据扰码 SC查找表 3 (家 庭基站设备识别码与扰码分配表), 得到对应的一群家庭基站, 再查找表 4 (家 庭基站邻区配置表), 根据宏小区标识 N— CELL— ID对查找表 3所得到的家庭基 站再进行筛选, 得到最小范围内的目标家庭基站。
需要说明的是, 如果进一步查找表 5 (家庭基站模式列表) , 发现筛选出 的候选目标家庭基站中有工作在 closed模式,此时还需要进一步查找表 6 (准入 列表), 根据允许接入的 UE进一步缩小目标家庭基站的范围。
当 AG根据上述算法查找数据库, 确定较小范围的目标家庭基站后, 向这 些筛选出的候选目标家庭基站转发迁移请求消息 ( Relocation Request ) 。
步骤 205、 筛选出的候选目标家庭基站根据预留的切换资源, 打开收发信 机;
接收到迁移请求消息的目标家庭基站与 AG建立了连接,根据 AG发送的迁 移请求消息激活预留的切换资源, 据预留的切换资源, 内部完成无线链路的 建立、 上下行同步, 打开收发信机, 然后向 AG发送迁移请求应答消息 ( Relocation request Acknowledge )。
由于需要多个目标家庭基站准备好资源,保证其中有一个目标家庭基站可 以实现与 UE的连接, 而家庭基站一般都已预留了切换资源, 因此本发明实施 例中通过发送迁移请求消息指示筛选出的候选目标家庭基站激活所预留的切 换资源 (建立一个无线链路连接所需要的资源), 这些资源包括物理信道重配 置消息( PHYSICAL CHANNEL RECONFIGURATION )所需要的信息, 例如 频点、 时序等, 将这些信息封装在迁移请求应答消息中。
需要说明的是, 为了减少预留资源的开销, 可以是预留电路域 CS中的一 个自适应多速率 AMR ( Adaptive Multi-Rate )业务和一个可视电话 VP业务所需 的资源, 不考虑为分组域 PS业务预留资源。
AG接收到家庭基站返回的迁移请求应答消息后, 对这些信息进行合并, 生成最终向核心网发送的迁移请求应答消息。
步骤 206、 AG向 MSC返回迁移请求应答消息;
步骤 207、 MSC向 RNC发出迁移命令 ( Relocation Cmd );
步骤 208、 RNC向 UE发出切换命令(即物理信道重配置消息);
RNC收到迁移命令 ( Relocation Cmd )后, 向 UE发出物理信道重配置消息 ( Physical Channel Reconfiguration )。
步骤 209、 UE根据接收的物理信道重配置消息, 进行物理信道重配置, 建 立与目标家基站的同步, 向目标家庭基站发送物理信道重配置完成消息;
UE完成物理信道重配置后, 向已筛选出的候选目标家庭基站发出物理信 道重配置完成消息 ( Physical Channel Reconfiguration complete )。 步骤 210、接收到物理信道重配置完成消息的家庭基站与 UE再进行一次物 理信道重配置过程, 并向 AG发出迁移完成消息;
因为只有一个家庭基站的信道配置才符合与 UE建立连接的条件, 才能接 收到 UE发送的物理信道重配置完成消息, 那么, 在筛选出的候选目标家庭基 站中接收到物理信道重配置完成消息的家庭基站, 向 UE再发送物理信道重配 置消息, 即再进行一次物理信道重配置的过程, 用于指示 UE释放已经占用的 预留的物理信道资源, 而该家庭基站也就是 UE实际要切换的目标家庭基站, 其使用的物理信道资源是当前的可用物理信道资源。因此,通过这个交互过程, 则确定了唯一的目标家庭基站, 并建立了与终端的连接。
该唯一目标家庭基站再次接收到 UE返回的物理信道重配置完成消息后, 向 AG发出迁移完成消息。
步骤 211、 AG根据接收的迁移完成消息, 获知唯一的目标家庭基站, 向 MSC发出迁移完成消息,向没有完成与 UE连接的目标家庭基站发出释放与 AG 的连接的消息;
需要说明的是, AG也可以不向其他没有完成与 UE连接的目标家庭基站发 出释放与 AG的连接的消息((也就相当于释放了预留的切换资源)), 而是由这 些目标家庭基站在设定时间后没有收到物理信道重配置完成消息,则自动释放 与 AG的连接。
步骤 212、 MSC根据接收的迁移完成消息, 释放宏小区资源。
MSC向 RNC发出 Iu释放消息, RNC向 MSC返回 Iu释放完成消息,整个切换 过程结束。
请参阅图 3 , 是本发明另一实施例提供的切换处理方法流程图。
步骤 301、 宏小区中的 UE触发切换事件, 并向 RNC发送测量报告, 测量报 告中包含作为切换对象的家庭基站的系统帧号 SFN与终端所在的源宏小区的 SFN的差值, 其中, 作为切换对象的家庭基站为待筛选的家庭基站。
步骤 302、 RNC根据测量报告的内容, 确认切换对象为家庭基站, 向 MSC 发送迁移要求消息( Relocation Required ) , 该消息中包括作为切换对象的家庭 基站的 SFN与源宏小区的 SFN的差值。
步骤 303、 MSC判断出目标小区为家庭基站, 向 AG发送迁移请求消息 ( Relocation Request )。
MSC根据接收的迁移要求消息,判断出 UE要切换的目标小区为家庭基站, 向 AG发送迁移请求消息( Relocation Request ), 其中携带包含作为切换对象的 家庭基站的 SFN与源宏小区的 SFN的差值。
步骤 304、 AG筛选出候选目标家庭基站, 向这些筛选出的候选目标家庭基 站转发迁移请求消息。
为了在 AG实现选择目标家庭基站,可以在 AG上建立用于完成搜索目标家 庭基站的信息列表, 其包括有如下信息:
Femtocell EI: 家庭基站设备识别码, 用以唯一确定家庭基站物理设备。
Femtocell SFN— offset: 即家庭基站的 SFN— offset, 表示家庭基站的 SFN与 邻宏小区的 SFN的差值; 其中, 邻宏小区是与所述家庭基站有邻区关系的宏小 区。
关联信息列表如表 7所示:
Figure imgf000013_0002
Figure imgf000013_0001
上述关联信息列表可以通过如下方式建立:
一种方式: 一个家庭基站有多个与其有邻区关系的宏小区(即邻宏小区 ), 在家庭基站或者宏小区初始化、复位或参数重配置时, 家庭基站对各邻宏小区 进行 SFN测量, 然后计算本家庭基站的 SFN— Offset: 本家庭基站的 SFN— Offset 为本家庭基站的 SFN与邻宏小区的 SFN的偏差值,将计算结果上报给 AG。 由于 一个家庭基站有多个与其有邻区关系的宏小区, 因此会向 AG上报本家庭基站 的一组 SFN— Offset。
或者, 家庭基站对各邻宏小区进行 SFN测量后, 将各邻宏小区的 SFN和本 家庭基站的 SFN—起上报给 AG, 由 AG计算家庭基站的 SFN— Offset: 家庭基站 的 SFN— Offset为该家庭基站的 SFN与各邻宏小区的 SFN的偏差值。 由于一个家 庭基站有多个与有邻区关系的宏小区, 因此, AG计算得到本家庭基站的一组 SFN— Offset。
另一种方式: 为某宏小区覆盖下的各家庭基站配置不同的 SFN时间起始 点, 计算家庭基站的 SFN— Offset: 家庭基站的 SFN— Offset为家庭基站的 SFN与 各邻宏小区的 SFN的偏差值。 由于每个家庭基站有多个与其有邻区关系的宏小 区, 因此, AG相对于每个家庭基站计算得到一组 SFN— Offset。
该步骤中 AG筛选候选目标家庭基站的方式如下:
在表 7中查找与上述作为切换对象的家庭基站的 SFN与源宏小区的 SFN的 差值匹配的家庭基站的 SFN— Offset, 将匹配到的家庭基站的 SFN— Offse对应的 家庭基站设备作为目标家庭基站。
其中 , 本发明实施例中同作为切换对象的家庭基站的 SFN与源宏小区的 SFN的差值匹配的家庭基站的 SFN— Offset可以是: 与该差值相差最小的家庭基 站的 SFN— Offset。
为了更准确的锁定目标家庭基站, 关联信息列表还可以如表 8所示:
Figure imgf000014_0002
Figure imgf000014_0001
此时, AG接收到的迁移请求消息中需要包括: 作为切换对象的家庭基站 的 SFN与源宏小区的 SFN的差值, 和 UE当前所在的源宏小区的 Cell ID, AG根 据这些信息筛选候选目标家庭基站, 具体的实现方式如下:
在表 8中查找与上述作为切换对象的家庭基站的 SFN与源宏小区的 SFN的 差值匹配的家庭基站的 SFN— Offset; 根据家庭基站设备的识别码、邻宏小区标识、所述家庭基站设备与所述邻 宏小区的 SFN偏差值(即该家庭基站的 SFN与邻宏小区的 SFN的偏差值)三者 之间的对应关系, 确定与源宏小区标识和所述匹配的家庭基站的 SFN— Offset 对应的家庭基站设备作为目标家庭基站。
为了更准确的锁定目标家庭基站, 关联信息列表还可以如表 9所示:
Figure imgf000015_0002
Figure imgf000015_0001
此时 , AG接收到的迁移请求消息中需要包括作为切换对象的家庭基站的 SFN与源宏小区的 SFN的差值、 UE当前所在的源宏小区的 Cell ID和作为切换对 象的家庭基站小区识别码, AG根据这些信息, 筛选候选目标家庭基站, 具体 的实现方式如下:
在表 9中查找与上述作为切换对象的家庭基站的 SFN与源宏小区的 SFN的 差值匹配的家庭基站的 SFN— Offset;
根据家庭基站设备的识别码、邻宏小区标识、 家庭基站小区识别码、 所述 家庭基站设备与所述邻宏小区的 SFN偏差值(即该家庭基站的 SFN与邻宏小区 的 SFN的偏差值)四种之间的对应关系, 确定与源宏小区标识、 所述匹配的家 庭基站的 SFN— Offset,和作为切换对象的家庭基站小区识别码对应的家庭基站 设备作为目标家庭基站。
步骤 305— 312与步骤 205— 212相似, 在此不再赞述。
从本实施例三可以看出, 根据预先配置好的参数对应关系 (如表 7、 表 8 及表 9 ), 筛选出候选目标家庭基站, 就使得目标家庭基站的范围大大缩小, 另 外通过激活筛选出的候选目标家庭基站所预留切换资源以用于可能与终端建 立的连接,在初步筛选出的候选目标家庭基站中,其中有一个目标家庭基站是 符合终端的切换条件,这样该目标家庭基站就可以通过预留的切换资源与终端 建立连接, 从而实现了终端从宏小区到家庭基站的切换。
需要说明的是, 上述本发明各实施例所提出的 AG筛选候选目标家庭基站 的技术不仅适用于从宏小区向家庭基站的切换中,也适用于其他需要筛选候选 目标家庭基站的场景。
从本实施例可以看出,通过在家庭基站的所有家庭基站中,根据预先配置 好的参数对应关系, 筛选出候选目标家庭基站, 就使得目标家庭基站的范围大 大缩小,另外通过激活筛选出的候选目标家庭基站所预留切换资源以用于可能 与终端建立的连接,在初步筛选出的候选目标家庭基站中,其中有一个目标家 庭基站是符合终端的切换条件,这样该目标家庭基站就可以通过预留的切换资 源与终端建立连接, 从而实现了终端从宏小区到家庭基站的切换。
另外, 家庭基站网关可以向没有完成与 UE连接的目标家庭基站发出释放 与家庭基站的连接的消息, 或者是由这些没有完成与 UE连接的目标家庭基站 在设定时间后没有收到物理信道重配置完成消息,则自动释放与家庭基站网关 的连接。
上述内容伴细介绍了本发明实施例切换处理方法,相应的,本发明实施例 还提供一种家庭基站网关和网络系统。
请参阅图 4, 是本发明实施例家庭基站网关结构示意图。
如图 4所示, 家庭基站网关包括:
接收单元 401, 用于接收移动交换中心发送的迁移请求消息, 所述迁移请 求消息表明终端向家庭基站切换;
处理单元 402, 用于在所述接收单元 401接收所述迁移请求消息后, 筛选候 选目标家庭基站, 指示所述筛选出的候选目标家庭基站激活预留的切换资源; 完成单元 405, 用于在所述筛选出的候选目标家庭基站中的一个目标家庭 基站通过预留的切换资源与终端建立连接后,接收与终端建立连接的目标家庭 基站返回的迁移完成消息。
家庭基站网关还包括: 存储单元 403。
存储单元 403, 用于存储家庭基站小区识别码、 扰码、 家庭基站小区识别 码、 宏小区标识之间的对应关系; 所述接收单元 401接收的迁移请求消息携带 家庭基站小区识别码、 宏小区标识, 所述处理单元 402筛选候选目标家庭基站 时, 根据所述存储单元 403存储的家庭基站小区识别码、 扰码、 家庭基站小区 识别码、 宏小区标识之间的对应关系, 选择目标家庭基站。
所述处理单元 402根据所述存储单元 403存储的家庭基站小区识别码、 扰 码、 家庭基站小区识别码、宏小区标识之间的对应关系, 选择目标家庭基站具 体为:
根据家庭基站小区识别码确定对应的扰码,根据所述确定的扰码确定对应 的家庭基站小区识别码, 据宏小区标识在所述确定的家庭基站小区识别码 中选择对应的家庭基站小区识别码,得到家庭基站小区识别码对应的目标家庭 基站。
所述得到家庭基站小区识别码对应的目标家庭基站后还包括:若得到的家 庭基站小区识别码对应的目标家庭基站的工作模式为关闭模式,则根据所述关 闭模式下允许接入的终端进一步筛选候选目标家庭基站。
或者, 存储单元 403 , 用于保存家庭基站设备与邻宏小区的 SFN偏差值、 所述家庭基站设备的识别码两者之间的对应关系; 接收单元 401接收的迁移请 求消息中包含作为切换对象的家庭基站的 SFN与终端所在的源宏小区的 SFN 的差值;处理单元 402用于在所述存储单元 403保存的家庭基站设备与邻宏小区 的 SFN偏差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值, 根 据家庭基站设备与邻宏小区的 SFN偏差值、所述家庭基站设备的识别码两者之 间的对应关系,确定所述匹配的 SFN偏差值对应的家庭基站设备作为目标家庭 基站。
其中 , 本发明实施例中同作为切换对象的家庭基站的 SFN与源宏小区的 SFN的差值匹配的家庭基站的 SFN— Offset可以是: 与该差值相差最小的家庭基 站的 SFN— Offset。
为了更准确的锁定目标家庭基站, 存储单元 403可以用于存储家庭基站设 备的识别码、 邻宏小区标识、 所述家庭基站设备与所述邻宏小区的 SFN偏差值 三者之间的对应关系; 此时接收单元 401接收的迁移请求消息中包含作为切换 对象的家庭基站的 SFN与终端所在的源宏小区的 SFN的差值,和 UE当前所在的 源宏小区的 Cell ID;处理单元 402用于在所述存储单元 403保存的家庭基站设备 与邻宏小区的 SFN偏差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值, 根据家庭基站设备的识别码、 邻宏小区标识、 所述家庭基站设备 与所述邻宏小区的 SFN偏差值三者之间的对应关系,确定与源宏小区标识和所 匹配的家庭基站的 SFN— Offset ^应的家庭基站设备作为目标家庭基站。
或者,存储单元 403可以用于存储家庭基站设备的识别码、邻宏小区标识、 家庭基站小区识别码、所述家庭基站设备与所述邻宏小区的 SFN偏差值四者之 间的对应关系; 此时接收单元 401接收的迁移请求消息中包含作为切换对象的 家庭基站的 SFN与终端所在的源宏小区的 SFN的差值、 UE当前所在的源宏小区 的 Cell ID和作为切换对象的家庭基站小区识别码; 处理单元 402用于在所述存 储单元 403保存的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移请 求消息中包含的差值匹配的 SFN偏差值, 根据家庭基站设备的识别码、 邻宏小 区标识、 家庭基站小区识别码、 所述家庭基站设备与所述邻宏小区的 SFN偏差 值四者之间的对应关系,确定与源宏小区标识、匹配的家庭基站的 SFN— Offset, 和作为切换对象的家庭基站小区识别码对应的家庭基站设备作为目标家庭基 站。
家庭基站网关还包括: 释放单元 404。
释放单元 404,用于在所述完成单元 405接收与终端建立连接的目标家庭基 站返回的迁移完成消息后 ,指示所述筛选出的候选目标家庭基站中未与终端建 立连接的目标家庭基站释放与家庭基站网关的连接。
请参阅图 5, 是本发明实施例网络系统结构示意图。
如图 5所示, 网络系统包括: 移动交换中心 501、 家庭基站网关 502、 家庭 基站 503 (图中以 2个举例说明)。 家庭基站网关 502具有图 4所示的结构, 此处 不再另外叙述。
移动交换中心 501, 用于发送迁移请求消息, 所述迁移请求消息表明终端 向家庭基站切换;
家庭基站网关 502, 用于接收所述移动交换中心 501发送的迁移请求消息; 筛选候选目标家庭基站,指示所述筛选出的候选目标家庭基站激活预留的切换 资源 ,在所述筛选出的候选目标家庭基站中的一个目标家庭基站通过预留的切 换资源与终端建立连接后,接收与终端建立连接的目标家庭基站返回的迁移完 成消息;
若干家庭基站 503, 用于作为目标家庭基站, 根据所述家庭基站网关 502 的指示激活预留的切换资源,其中一个目标家庭基站通过预留的切换资源与终 端建立连接, 并向所述家庭基站网关 502发送迁移完成消息。
所述移动交换中心 501发送的迁移请求消息携带家庭基站小区识别码 、宏 小区标识; 所述家庭基站网关 502筛选候选目标家庭基站时, 是根据预设的家 庭基站小区识别码 、 扰码、 家庭基站小区识别码、 宏小区标识之间的对应关 系, 选择目标家庭基站。
或者, 所述移动交换中心 501发送的迁移请求消息携带作为切换对象的家 庭基站的系统帧号 SFN与终端所在的源宏小区的 SFN的差值; 所述家庭基站网 关 502筛选候选目标家庭基站时, 是在预先存储的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值, 根据 家庭基站设备与邻宏小区的 SFN偏差值、所述家庭基站设备的识别码两者之间 的对应关系,确定所述匹配的 SFN偏差值对应的家庭基站设备作为目标家庭基 站。
进一步的, 所述移动交换中心 501发送的迁移请求消息还携带所述终端所 在的源宏小区标识; 所述家庭基站网关 502筛选候选目标家庭基站时, 是在预 先存储的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移请求消息 中包含的差值匹配的 SFN偏差值,根据家庭基站设备的识别码、邻宏小区标识、 所述家庭基站设备与所述邻宏小区的 SFN偏差值三者之间的对应关系,确定与 所述终端所在的源宏小区标识及所述匹配的 SFN偏差值对应的家庭基站设备 为目标家庭基站。
进一步的, 所述移动交换中心 501发送的迁移请求消息还携带所述终端所 在的源宏小区标识和作为切换对象的家庭基站小区识别码;所述家庭基站网关 502筛选候选目标家庭基站时, 是在预先存储的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值, 根据 家庭基站设备的识别码、邻宏小区标识、 家庭基站小区识别码、 所述家庭基站 设备与所述邻宏小区的 SFN偏差值四者之间的对应关系, 确定与源宏小区标 识、 所述匹配的 SFN偏差值、 和作为切换对象的家庭基站小区识别码对应的家 庭基站设备作为目标家庭基站。
所述家庭基站网关 502指示所述筛选出的候选目标家庭基站激活预留的切 换资源后,接收所述筛选出的候选目标家庭基站返回的关于物理信道重配置的 参数信息, 并通过核心网传送到发起切换的原接入网; 所述筛选出的候选目标 家庭基站,接收终端在根据原接入网发出的物理信道重配置消息, 完成物理信 道重配置后所发送的物理信道重配置完成消息,并由符合接收条件的唯一目标 家庭基站接收所述物理信道重配置完成消息后,再次向所述终端发送物理信道 重配置消息,指示所述终端再进行物理信道重配置, 建立与唯一目标家庭基站 的连接。
所述家庭基站网关 502在接收与终端建立连接的目标家庭基站返回的迁移 完成消息后,指示所述筛选出的候选目标家庭基站中未与终端建立连接的目标 家庭基站释放与家庭基站网关的连接; 或者, 所述筛选出的候选目标家庭基站 中未与终端建立连接的目标家庭基站,在达到设定时间后,释放与家庭基站网 关的连接。
综上所述,本发明实施例技术方案通过家庭基站网关在家庭基站的所有家 庭基站中, 筛选出候选目标家庭基站, 就使得目标家庭基站的范围大大缩小, 另外通过激活筛选出的候选目标家庭基站所预留切换资源以用于可能与终端 建立的连接,在初步筛选出的候选目标家庭基站中,其中有一个目标家庭基站 是符合终端的切换条件,这样该目标家庭基站就可以通过预留的切换资源与终 端建立连接, 从而实现了终端从宏小区到家庭基站的切换。
进一步, 本发明实施例技术方案可以向没有完成与 UE连接的目标家庭基 站发出释放与家庭基站网关的连接的消息 , 或者是由这些没有完成与 UE连接 的目标家庭基站在设定时间后没有收到物理信道重配置完成消息,则自动释放 与家庭基站网关的连接。
以上对本发明实施例所提供的一种切换处理方法、家庭基站网关及网络系 阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想;同时, 对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围 上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种切换处理方法, 其特征在于, 包括:
家庭基站网关接收移动交换中心发送的迁移请求消息 ,所述迁移请求消息 表明终端向家庭基站切换;
所述家庭基站网关筛选候选目标家庭基站,指示所述筛选出的候选目标家 庭基站激活预留的切换资源,所述候选目标家庭基站为全部目标家庭基站中的 至少一个;
在所述筛选出的候选目标家庭基站中的一个目标家庭基站通过预留的切 换资源与所述终端建立连接后,接收与所述终端建立连接的目标家庭基站返回 的迁移完成消息。
2、根据权利要求 1所述的切换处理方法, 其特征在于, 所述迁移请求消息 携带家庭基站小区识别码、 宏小区标识;
所述家庭基站网关筛选候选目标家庭基站, 包括:
所述家庭基站网关根据预设的家庭基站小区识别码、扰码、 家庭基站设备 识别码、 宏小区标识之间的对应关系, 筛选候选目标家庭基站。
3、根据权利要求 2所述的切换处理方法, 其特征在于, 所述家庭基站网关 根据预设的家庭基站小区识别码、扰码、 家庭基站设备识别码、宏小区标识之 间的对应关系, 筛选候选目标家庭基站, 包括:
所述家庭基站网关根据所述家庭基站小区识别码确定对应的扰码; 根据所述确定的扰码确定对应的家庭基站设备识别码;
根据所述宏小区标识在所述确定的家庭基站设备识别码中选择对应的家 庭基站设备识别码,确定所述家庭基站设备识别码对应的目标家庭基站为候选 目标家庭基站。
4、根据权利要求 3所述的切换处理方法, 其特征在于, 所述确定所述家庭 基站设备识别码对应的目标家庭基站后, 还包括:
若所述家庭基站设备识别码对应的目标家庭基站的工作模式为关闭模式, 则根据所述关闭模式下允许接入的终端进一步筛选候选目标家庭基站。
5、 根据权利要求 1至 4任一项所述的切换处理方法, 其特征在于, 所述迁 移请求消息表明的所要切换的家庭基站为宏小区中预先配置的邻区家庭基站 , 所述宏小区中预先统一配置有家庭基站小区识别码和扰码的对应关系。
6、 根据权利要求 1所述的切换处理方法, 其特征在于:
所述迁移请求消息中包含作为切换对象的家庭基站的系统帧号 SFN与终 端所在的源宏小区的 SFN的差值;
所述家庭基站网关筛选候选目标家庭基站, 包括:
在预先存储的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移 请求消息中包含的差值匹配的 SFN偏差值, 根据家庭基站设备与邻宏小区的 SFN偏差值、 所述家庭基站设备的识别码两者之间的对应关系, 确定所述匹配 的 SFN偏差值对应的家庭基站设备作为候选目标家庭基站。
7、 根据权利要求 6所述的切换处理方法, 其特征在于:
所述迁移请求消息中还携带所述终端所在的源宏小区标识;
所述家庭基站网关筛选候选目标家庭基站, 包括:
在预先存储的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移 请求消息中包含的差值匹配的 SFN偏差值, 根据家庭基站设备的识别码、邻宏 小区标识、所述家庭基站设备与所述邻宏小区的 SFN偏差值三者之间的对应关 系,确定与所述终端所在的源宏小区标识及所述匹配的 SFN偏差值对应的家庭 基站设备为候选目标家庭基站。
8、 根据权利要求 6所述的切换处理方法, 其特征在于:
所述迁移请求消息中还携带所述终端所在的源宏小区标识和作为切换对 象的家庭基站小区识别码;
所述家庭基站网关筛选候选目标家庭基站, 包括:
在预先存储的家庭基站设备与邻宏小区的 SFN偏差值中寻找与所述迁移 请求消息中包含的差值匹配的 SFN偏差值, 根据家庭基站设备的识别码、邻宏 小区标识、 家庭基站小区识别码、 所述家庭基站设备与所述邻宏小区的 SFN偏 差值四者之间的对应关系, 确定与源宏小区标识、 所述匹配的 SFN偏差值、 和 作为切换对象的家庭基站小区识别码对应的家庭基站设备作为候选目标家庭 基站。
9、 根据权利要求 1至 4, 6至 8任一项所述的切换处理方法, 其特征在于, 所述在所述筛选出的候选目标家庭基站中的一个目标家庭基站通过预留的切 换资源与所述终端建立连接后,接收与所述终端建立连接的目标家庭基站返回 的迁移完成消息, 包括:
在指示所述筛选出的候选目标家庭基站激活预留的切换资源后 ,接收所述 筛选出的候选目标家庭基站返回的关于物理信道重配置的参数信息 ,并通过核 心网传送到发起切换的原接入网;
接收与所述终端建立连接的目标家庭基站返回的迁移完成消息,所述与终 端建立连接的目标家庭基站是唯一接收到物理信道重配置完成消息的家庭基 站,所述物理信道重配置完成消息由所述终端 据所述原接入网发出的物理信 道重配置消息, 完成物理信道重配置后向所述筛选出的候选目标家庭基站发 送,所述迁移完成消息是所述唯一接收到物理信道重配置完成消息的家庭基站 通过再次向所述终端发送物理信道重配置消息 ,指示所述终端再次进行物理信 道重配置而建立起与所述终端的连接后 , 向所述家庭基站网关发送。
10、 根据权利要求 1至 4, 6至 8任一项所述的切换处理方法, 其特征在于, 所述接收与所述终端建立连接的目标家庭基站返回的迁移完成消息后, 还包 括:
指示所述筛选出的候选目标家庭基站中未与所述终端建立连接的目标家 庭基站释放与所述家庭基站网关的连接;
或者,
由所述筛选出的候选目标家庭基站中未与所述终端建立连接的目标家庭 基站在达到设定时间后, 释放与所述家庭基站网关的连接。
11、 一种家庭基站网关, 其特征在于, 包括:
接收单元,用于接收移动交换中心发送的迁移请求消息, 所述迁移请求消 息表明终端向家庭基站切换;
处理单元,用于在所述接收单元接收到所述迁移请求消息后, 筛选候选目 标家庭基站,指示所述筛选出的候选目标家庭基站激活预留的切换资源, 所述 候选目标家庭基站为全部目标家庭基站中的至少一个;
完成单元,用于在所述筛选出的候选目标家庭基站中的一个目标家庭基站 通过预留的切换资源与所述终端建立连接后,接收与所述终端建立连接的目标 家庭基站返回的迁移完成消息。
12、根据权利要求 11所述的家庭基站网关, 其特征在于, 所述家庭基站网 关还包括:
存储单元, 用于存储家庭基站小区识别码 、扰码、 家庭基站设备识别码、 宏小区标识之间的对应关系;
所述接收单元接收的迁移请求消息携带家庭基站小区识别码、终端所在的 宏小区标识;
所述处理单元具体根据所述存储单元存储的家庭基站小区识别码、 扰码、 家庭基站设备识别码、 宏小区标识之间的对应关系, 选择候选目标家庭基站。
13、 根据权利要求 11所述的家庭基站网关, 其特征在于,
所述接收单元接收的迁移请求消息中包含作为切换对象的家庭基站的系 统帧号 SFN与终端所在的源宏小区的 SFN的差值;
所述家庭基站网关还包括:存储单元, 用于保存家庭基站设备与邻宏小区 的 SFN偏差值、 所述家庭基站设备的识别码两者之间的对应关系;
所述处理单元,用于在存储单元保存的家庭基站设备与邻宏小区的 SFN偏 差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值,根据家庭基 站设备与邻宏小区的 SFN偏差值、所述家庭基站设备的识别码两者之间的对应 关系, 确定所述匹配的 SFN偏差值对应的家庭基站设备作为候选目标家庭基 站。
14、 根据权利要求 13所述的家庭基站网关, 其特征在于,
所述接收单元接收的迁移请求消息中还包含所述终端所在的源宏小区标 识;
所述存储单元, 用于保存家庭基站设备的识别码、邻宏小区标识、 所述家 庭基站设备与所述邻宏小区的 SFN偏差值三者之间的对应关系;
所述处理单元,用于在存储单元保存的家庭基站设备与邻宏小区的 SFN偏 差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值,根据家庭基 站设备的识别码、 邻宏小区标识、 所述家庭基站设备与所述邻宏小区的 SFN偏 差值三者之间的对应关系,确定与所述终端所在的源宏小区标识及所述匹配的 SFN偏差值对应的家庭基站设备作为候选目标家庭基站。
15、 根据权利要求 13所述的家庭基站网关, 其特征在于, 所述接收单元接收的迁移请求消息中还包含所述终端所在的源宏小区标 识和作为切换对象的家庭基站小区识别码;
所述存储单元, 用于保存家庭基站设备的识别码、邻宏小区标识、 家庭基 站小区识别码、所述家庭基站设备与所述邻宏小区的 SFN偏差值四者之间的对 应关系;
所述处理单元,用于在存储单元保存的家庭基站设备与邻宏小区的 SFN偏 差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值,根据家庭基 站设备的识别码、邻宏小区标识、 家庭基站小区识别码、 所述家庭基站设备与 所述邻宏小区的 SFN偏差值四者之间的对应关系, 确定与源宏小区标识、 所述 匹配的 SFN偏差值、和作为切换对象的家庭基站小区识别码对应的家庭基站设 备作为候选目标家庭基站。
16、根据权利要求 11至 15中任一项所述的家庭基站网关, 其特征在于, 所 述家庭基站网关还包括:
释放单元,用于在所述完成单元接收到与所述终端建立连接的目标家庭基 站返回的迁移完成消息后,指示所述筛选出的候选目标家庭基站中未与所述终 端建立连接的目标家庭基站释放与家庭基站网关的连接。
17、 一种网络系统, 其特征在于, 包括:
移动交换中心, 用于发送迁移请求消息, 所述迁移请求消息表明终端向家 庭基站切换;
家庭基站网关, 用于接收所述移动交换中心发送的迁移请求消息; 筛选候 选目标家庭基站, 指示所述筛选出的候选目标家庭基站激活预留的切换资源 , 在所述筛选出的候选目标家庭基站中的一个目标家庭基站通过预留的切换资 源与所述终端建立连接后,接收与所述终端建立连接的目标家庭基站返回的迁 移完成消息;
若干家庭基站,作为目标家庭基站, 用于根据所述家庭基站网关的指示激 活预留的切换资源,其中一个目标家庭基站通过预留的切换资源与所述终端建 立连接, 并向所述家庭基站网关发送迁移完成消息。
18、 根据权利要求 17所述的网络系统, 其特征在于:
所述移动交换中心发送的迁移请求消息携带家庭基站小区识别码、终端所 在的宏小区标识;
所述家庭基站网关具体根据预设的家庭基站小区识别码、扰码、 家庭基站 设备识别码、 宏小区标识之间的对应关系, 选择候选目标家庭基站。
19、 根据权利要求 17所述的网络系统, 其特征在于:
所述移动交换中心发送的迁移请求消息携带作为切换对象的家庭基站的 系统帧号 SFN与终端所在的源宏小区的 SFN的差值;
所述家庭基站网关筛选候选目标家庭基站时 ,是在预先存储的家庭基站设 备与邻宏小区的 SFN偏差值中寻找与所述迁移请求消息中包含的差值匹配的 SFN偏差值, 根据家庭基站设备与邻宏小区的 SFN偏差值、 所述家庭基站设备 的识别码两者之间的对应关系,确定所述匹配的 SFN偏差值对应的家庭基站设 备作为候选目标家庭基站。
20、 根据权利要求 17至 19中任一项所述的网络系统, 其特征在于: 所述家庭基站网关还用于在指示所述筛选出的候选目标家庭基站激活预 留的切换资源后,接收所述筛选出的候选目标家庭基站返回的关于物理信道重 配置的参数信息, 并通过核心网传送到发起切换的原接入网;
所述筛选出的候选目标家庭基站中符合接收条件的唯一目标家庭基站接 收所述终端发送的物理信道重配置完成消息,所述物理信道重配置完成消息由 所述终端在根据所述原接入网发出的物理信道重配置消息完成物理信道重配 置后发送, 所述唯一目标家庭基站再次向所述终端发送物理信道重配置消息, 指示所述终端再进行物理信道重配置, 建立与所述唯一目标家庭基站的连接。
21、 根据权利要求 17至 19中任一项所述的网络系统, 其特征在于: 所述家庭基站网关还用于在接收与所述终端建立连接的目标家庭基站返 回的迁移完成消息后,指示所述筛选出的候选目标家庭基站中未与所述终端建 立连接的目标家庭基站释放与所述家庭基站网关的连接;
或者,
所述筛选出的候选目标家庭基站中未与终端建立连接的目标家庭基站 ,在 达到设定时间后, 释放与所述家庭基站网关的连接。
PCT/CN2009/075215 2008-12-10 2009-11-30 切换处理方法、家庭基站网关及网络系统 WO2010066165A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09831442.0A EP2375807B1 (en) 2008-12-10 2009-11-30 Handover processing method, home base station gateway and network system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CNA2008102045711A CN101466125A (zh) 2008-12-10 2008-12-10 切换处理方法、家庭基站网关及网络系统
CN200810204571.1 2008-12-10
CN2009101774210A CN101754306B (zh) 2008-12-10 2009-09-28 切换处理方法、家庭基站网关及网络系统
CN200910177421.0 2009-09-28

Publications (1)

Publication Number Publication Date
WO2010066165A1 true WO2010066165A1 (zh) 2010-06-17

Family

ID=42242344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/075215 WO2010066165A1 (zh) 2008-12-10 2009-11-30 切换处理方法、家庭基站网关及网络系统

Country Status (3)

Country Link
EP (1) EP2375807B1 (zh)
CN (1) CN101754306B (zh)
WO (1) WO2010066165A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612100A (zh) * 2011-01-19 2012-07-25 中兴通讯股份有限公司 一种终端向家庭基站切换的方法及系统
US8509794B2 (en) 2010-06-28 2013-08-13 Huawei Technologies Co., Ltd. Method and apparatus for controlling user equipments
US9137713B2 (en) 2010-09-16 2015-09-15 Qualcomm Incorporated Apparatus and methods of hand-in to a femto node
US9479978B2 (en) 2011-10-18 2016-10-25 Broadcom Corporation Method for determining a handover between a macrocell and a femtocell
US9603087B2 (en) 2011-10-18 2017-03-21 Broadcom Corporation Green femtocells and methods of implementing the same
US10694578B2 (en) 2010-09-16 2020-06-23 Qualcomm Incorporated Apparatus and methods for hand-in to a femto node

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8305966B2 (en) * 2010-06-29 2012-11-06 Intel Corporation Femto backhaul fault detection and recovery
CN102413493A (zh) 2010-09-21 2012-04-11 北京三星通信技术研究有限公司 决定重定位过程的方法和决定切换过程的方法
US20130143555A1 (en) * 2011-12-02 2013-06-06 Qualcomm Incorporated Managing access terminal handover in view of access point physical layer identifier confusion
CN102726101B (zh) * 2011-12-16 2014-07-09 华为技术有限公司 软切换方法及设备
KR20140033657A (ko) * 2012-09-10 2014-03-19 삼성전자주식회사 이동 통신 시스템에서 매크로 기지국과 소형 셀 기지국 간 협력 통신 서비스 제공 장치 및 방법
CN103687012B (zh) * 2012-09-14 2019-01-18 中兴通讯股份有限公司 认知无线电系统中频谱资源管理的方法及装置
CN104053202B (zh) * 2013-03-12 2018-10-23 南京中兴软件有限责任公司 小区主扰码冲突识别、软切换及邻区列表生成方法及装置
WO2018059859A1 (en) 2016-09-29 2018-04-05 British Telecommunications Public Limited Company Cellular telecommunications network
WO2018059860A1 (en) 2016-09-29 2018-04-05 British Telecommunications Public Limited Company Cellular telecommunications network
EP3656185A1 (en) 2017-07-18 2020-05-27 British Telecommunications Public Limited Company Cellular telecommunications network
EP3772227B1 (en) 2019-07-29 2022-07-13 British Telecommunications public limited company Cellular telecommunications network
WO2021018449A1 (en) 2019-07-29 2021-02-04 British Telecommunications Public Limited Company Initiation of transfer of user equipment to base station according to visual data
GB2596118B (en) 2020-06-18 2022-07-20 British Telecomm Cellular telecommunications network

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101123577A (zh) * 2007-08-24 2008-02-13 中兴通讯股份有限公司 一种全球微波接入互通终端进行基站切换的方法
US20080132239A1 (en) * 2006-10-31 2008-06-05 Amit Khetawat Method and apparatus to enable hand-in for femtocells
WO2008103084A1 (en) * 2007-02-20 2008-08-28 Telefonaktiebolaget Lm Ericsson (Publ) Handover from a macro cell back to a femto cell
CN101466125A (zh) * 2008-12-10 2009-06-24 上海华为技术有限公司 切换处理方法、家庭基站网关及网络系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7477920B2 (en) * 2002-10-25 2009-01-13 Intel Corporation System and method for automatically configuring and integrating a radio base station into an existing wireless cellular communication network with full bi-directional roaming and handover capability
GB0514438D0 (en) * 2005-07-15 2005-08-17 Ip Access Ltd Cellular radio tellecommunication handover system
GB2445987B (en) * 2007-01-19 2011-09-28 Motorola Inc Relocation in a cellular communication system
CN101166133B (zh) * 2007-09-26 2011-05-25 中兴通讯股份有限公司 家庭基站的位置限制方法及系统
CN101287294B (zh) * 2008-06-11 2012-07-04 中兴通讯股份有限公司 移动管理实体、终端转移方法和系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080132239A1 (en) * 2006-10-31 2008-06-05 Amit Khetawat Method and apparatus to enable hand-in for femtocells
WO2008103084A1 (en) * 2007-02-20 2008-08-28 Telefonaktiebolaget Lm Ericsson (Publ) Handover from a macro cell back to a femto cell
CN101123577A (zh) * 2007-08-24 2008-02-13 中兴通讯股份有限公司 一种全球微波接入互通终端进行基站切换的方法
CN101466125A (zh) * 2008-12-10 2009-06-24 上海华为技术有限公司 切换处理方法、家庭基站网关及网络系统

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8509794B2 (en) 2010-06-28 2013-08-13 Huawei Technologies Co., Ltd. Method and apparatus for controlling user equipments
RU2518166C1 (ru) * 2010-06-28 2014-06-10 Хуавэй Текнолоджиз Ко., Лтд. Способ и устройство для управления пользовательским оборудованием
US9137713B2 (en) 2010-09-16 2015-09-15 Qualcomm Incorporated Apparatus and methods of hand-in to a femto node
US10045322B2 (en) 2010-09-16 2018-08-07 Qualcomm Incorporated Apparatus and methods of hand-in to a femto node
US10694578B2 (en) 2010-09-16 2020-06-23 Qualcomm Incorporated Apparatus and methods for hand-in to a femto node
CN102612100A (zh) * 2011-01-19 2012-07-25 中兴通讯股份有限公司 一种终端向家庭基站切换的方法及系统
US9479978B2 (en) 2011-10-18 2016-10-25 Broadcom Corporation Method for determining a handover between a macrocell and a femtocell
US9603087B2 (en) 2011-10-18 2017-03-21 Broadcom Corporation Green femtocells and methods of implementing the same

Also Published As

Publication number Publication date
EP2375807A4 (en) 2011-11-09
CN101754306A (zh) 2010-06-23
EP2375807A1 (en) 2011-10-12
CN101754306B (zh) 2013-09-11
EP2375807B1 (en) 2018-10-31

Similar Documents

Publication Publication Date Title
WO2010066165A1 (zh) 切换处理方法、家庭基站网关及网络系统
JP6920443B2 (ja) 目標セルアクセス方法及び装置
US11134427B2 (en) Terminal, base station, cell access method, and data transmission method for reconfiguring a wireless connection to communicate with a secondary cell
EP2560454B1 (en) Method and system for implementing direct interface between access network nodes
EP3445086B1 (en) Method and device for switching user equipment
CN112654067B (zh) 一种数据传输的方法、通信设备及通信系统
CN101998468B (zh) 一种移动通信系统中自优化的实现方法、系统和基站
US20100093358A1 (en) Wireless communication system and handover method therein
CN105580427A (zh) 移动通信系统中的切换过程
CN106851750B (zh) 一种通信方法、基站及系统
EP2512179A1 (en) Method for determining reason for too late handover to home base station
CN104349394A (zh) 一种小小区架构中支持业务本地分流的方法、系统和设备
US8611308B2 (en) Method and apparatus for user handing over to home NodeB
JP6345336B2 (ja) 閉鎖加入者グループ身元状態のアップデート方法、システム及び基地局
CN111741496A (zh) 一种小区间定向切换的方法及装置
WO2014047890A1 (zh) 无线局域网接入方法、基站控制器和用户设备
CN111417110A (zh) 一种基于nsa的小区配置方法及装置
WO2012126383A1 (zh) 一种业务建立的方法、设备及系统
WO2011026366A1 (zh) 一种宏小区到家庭基站小区的切换方法及系统
WO2012155713A1 (zh) 一种切换操作方法和系统
WO2006074608A1 (fr) Interoperabilite mondiale pour systeme de reseau a acces micro-ondes et procede permettant d'acceder a un reseau central via le reseau d'acces
WO2012041023A1 (zh) 一种信息传输的方法及接入节点
WO2016058384A1 (zh) 承载处理方法及装置
WO2022205250A1 (zh) 无线链路失败的处理方法及装置
WO2014161152A1 (zh) 一种分流方法、终端设备及网络系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09831442

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009831442

Country of ref document: EP