WO2011113210A1 - Procédé et dispositif permettant une commutation locale entre plusieurs stations de base - Google Patents

Procédé et dispositif permettant une commutation locale entre plusieurs stations de base Download PDF

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Publication number
WO2011113210A1
WO2011113210A1 PCT/CN2010/071163 CN2010071163W WO2011113210A1 WO 2011113210 A1 WO2011113210 A1 WO 2011113210A1 CN 2010071163 W CN2010071163 W CN 2010071163W WO 2011113210 A1 WO2011113210 A1 WO 2011113210A1
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WIPO (PCT)
Prior art keywords
base station
user equipment
interface
calling party
called party
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PCT/CN2010/071163
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English (en)
Chinese (zh)
Inventor
钱荣福
徐浩
孔令山
吕平宝
韦宇
汪云华
马红
Original Assignee
上海贝尔股份有限公司
阿尔卡特朗讯
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 上海贝尔股份有限公司, 阿尔卡特朗讯 filed Critical 上海贝尔股份有限公司
Priority to CN201080059706.5A priority Critical patent/CN102687558B/zh
Priority to PCT/CN2010/071163 priority patent/WO2011113210A1/fr
Publication of WO2011113210A1 publication Critical patent/WO2011113210A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to wireless communication technologies, and more particularly to a method and apparatus for local exchange of base stations. Background technique
  • LTE Long Term Evolution
  • SGW Serving Gateway
  • GSM Global System for Mobile Communications
  • BSC base station controller
  • the present invention proposes a method and apparatus for realizing local exchange between multiple base stations by using an X2 interface.
  • a method for implementing local switching in a base station, wherein a called party accesses the base station comprising the steps of: receiving a message carrying a local exchange information from a serving gateway,
  • the local exchange information includes: a calling party identifier, an enhanced wireless access information corresponding to the calling party and the called party; and determining, by the local exchange information, the base station and the calling party Whether there is an available X2 interface-based connection between the accessed base stations; if there is an available X2 interface-based connection between the base station and the base station to which the calling party is connected, initiate establishment and the calling An X2-interface based connection between base stations to which the party is connected.
  • a method for implementing local switching in a base station comprising the steps of: receiving X2 based on a base station accessed by the called party A connection establishment request for local exchange of the interface; and a connection establishment response for local exchange based on the X2 interface is sent to the base station accessed by the called party.
  • a method for implementing local switching in a serving gateway including the steps of: determining whether a base station accessed by a calling party and a base station accessed by a called party access the same The serving gateway, if yes, sends a message carrying local exchange information to the base station accessed by the called party; the local exchange information includes: a calling party identifier, an enhanced wireless corresponding to the calling party and the called party ID of the access bearer.
  • a method for implementing handover in a base station comprising the steps of: receiving a handover request regarding communication between a first user equipment and a second user equipment; determining the base station and the Whether there is an available X2 interface-based connection between the base stations to which the second user equipment is connected; if there is an available X2 interface-based connection between the base station and the base station to which the second user equipment is connected, Initiating a connection based on the ⁇ 2 interface between the base station to which the second user equipment is connected, the connection is used to carry the communication between the first user equipment and the second user equipment.
  • a method for implementing handover in a base station comprising the steps of: transmitting, to another base station, about the first user a handover request for communication between the device and the second user equipment; receiving a handover request acknowledgement from the another base station; stopping transmitting data of the first user equipment to the second user equipment.
  • a first switching device that implements local switching in a base station
  • the first switching device includes: a first receiving device, configured to receive a message carrying the local exchange information from the serving gateway, where the local exchange information includes: a calling party identifier, an identifier of the enhanced radio access bearer corresponding to the calling party and the called party, and a first determining device, configured to Determining, by the local exchange information, whether there is an available X2 interface-based connection between the base station and the base station to which the calling party is connected; the first processing device is configured to: if the base station and the calling party If there is an available X2 interface-based connection between the connected base stations, then Establishing an X2-interface based connection with the base station to which the calling party is connected.
  • a second switching device for implementing local switching in a base station
  • the second switching device includes: a second receiving device, configured to receive The X2 interface-based connection establishment request for the local exchange from the base station to which the called party is connected; the first response device, configured to send the X2 interface based on the X2 interface to the base station accessed by the called party for local exchange The connection establishes a response.
  • a first switching apparatus for implementing handover in a base station including: a third receiving apparatus, configured to receive a handover related to communication between a first user equipment and a second user equipment And a second determining means, configured to determine whether there is an available X2 interface-based connection between the base station and the base station to which the second user equipment is connected; An X2 interface-based connection between the base stations accessed by the second user equipment is established, and an X2 interface-based connection between the base station and the base station accessed by the second user equipment is initiated, and the connection is used for The communication between the first user equipment and the second user equipment is carried.
  • a second switching apparatus that implements handover in a base station
  • the second switching apparatus includes: a first sending apparatus, configured to Another base station sends a handover request for communication between the first user equipment and the second user equipment; a fourth receiving device, configured to receive a handover request acknowledgement from the another base station; and a fourth processing device, Stop sending data of the first user equipment to the second user equipment.
  • the X2 interface implements local data exchange and handover, which generally saves backhaul link resources in the wireless communication system, reduces data transmission delay, and reduces the average between users.
  • the network transmission cost of communication DRAWINGS
  • FIG. 1 shows a flow chart of a method for implementing local switching in a mobile communication network in accordance with one embodiment of the present invention
  • FIG. 2 shows a flow chart of a method for implementing handover in a mobile communication network in accordance with an embodiment of the present invention
  • FIG. 3 is a flow chart showing a method of implementing handover in a mobile communication network in accordance with an embodiment of the present invention
  • FIG. 4 is a block diagram showing the structure of a first switching device that implements local switching in a base station according to an embodiment of the present invention
  • FIG. 5 is a block diagram showing the structure of a second switching device that implements local switching in a base station according to an embodiment of the present invention
  • FIG. 6 is a block diagram showing the structure of a third switching device that implements local switching in a serving gateway according to an embodiment of the present invention
  • FIG. 7 is a block diagram showing the structure of a first switching device that implements handover in a base station according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing the structure of a second switching device that implements handover in a base station according to an embodiment of the present invention. detailed description
  • the mobile communication system of this embodiment includes: a serving gateway 10, a base station 1 1 , a base station 12, a calling party (user equipment) 15, and a called party.
  • Party (User Equipment) 16 The specific scenario is as follows: The base station 11 and the base station 12 both access the serving gateway 10, the calling party 16 accesses the base station 12, the called party 15 accesses the base station 11, and the calling party 16 initiates a communication connection to the called party 15.
  • the method flow in this embodiment is described in detail below.
  • step S101 non-access stratum signaling message transmission is performed between the serving gateway 10, the base station 12, and the calling party 16.
  • step S102 the serving gateway 10 acquires the information of the called party 15 from the base station 12 and the calling party 16.
  • step S103 the serving gateway 10 pages to the called party 15.
  • step S104 the called party 15 and the base station 11 enter a random access procedure.
  • step S105 radio resource control is established between the called party 15 and the base station 11.
  • the method includes: the called party 15 sends a RRC connection request message to the base station 11; the base station 11 sends a RRC connection establishment message to the called party 15; the called party 15 sends the RRC connection establishment to the base station 11 Message.
  • RRC Radio Resource Control
  • step S106 the base station 11 transmits initial user information to the serving gateway 10.
  • the serving gateway 10 acquires the information of the called party 15 and the base station 11 to which it is accessed. Alternatively, the serving gateway 10 will be at the calling party 16 and the called party 15 This information is saved during this communication.
  • step S107 the serving gateway 10, the base station 11, and the called party 15 perform non-access stratum signaling message transmission.
  • step S108 the serving gateway 10 transmits an initial context setup request message to the base station 11.
  • step S109 the called party 15 and the base station 11 perform radio resource control layer connection reconfiguration.
  • the method includes: the base station 11 sends a RRC connection reconfiguration message to the called party 15; the called party 15 sends a RRC connection reconfiguration completion message to the base station 11.
  • step S110 the non-access stratum signaling message transmission is performed between the serving gateway 10, the base station 11, and the called party 15.
  • step S111 the base station 11 transmits an initial context setup response message to the serving gateway 10.
  • the foregoing steps S101 to S111 may be consistent with the existing LTE protocol specifications to improve compatibility of the technical solutions in the present invention.
  • the following steps are mainly performed by the serving gateway 10, the base station 11 accessed by the called party 15, and the base station 12 accessed by the calling party 16, respectively, to implement local exchange of communication between the calling party 16 and the called party 15. .
  • the serving gateway 10 determines whether the base station 12 to which the calling party 16 is connected and the base station 11 to which the called party 15 is connected access the serving gateway 10; if yes, in step S113, the serving gateway The message that carries the local exchange information is sent to the base station 11 that is accessed by the called party 15; wherein, the local exchange information includes: the calling party identifier, the enhanced wireless access bearer corresponding to the calling party and the called party. Identification (E-RAB ID).
  • base stations accessing the same serving gateway are neighbors to each other on the network topology, even in actual distribution, so that there is a possibility of establishing an X2-interface based connection between the base stations to communicate with each other. Therefore, when the serving gateway 10 determines that both the base station 11 and the base station 12 access the serving gateway 10, the above message carrying the local exchange information may be sent to attempt to establish an X2-interface based connection between the base station 11 and the base station 12 for carrying Communication between the calling party 16 and the called party 15. If the calling party and the called party access the same base station, the base station can directly exchange each other's data.
  • the message carrying the local exchange information sent by the serving gateway 10 further includes: an identifier of the base station to which the calling party accesses. If the base station 11 and the base station 12 do not both access the serving gateway 10, the solution in the prior art can still be employed, and the serving gateway 10 exchanges data between the calling party 16 and the called party 15 as an intermediate node.
  • the message carrying the local exchange information is implemented by a modified enhanced radio access bearer setup request (E-RAB SETUP REQUEST) message, and the specific content is defined as follows:
  • the Local Switching UE Info and the Local Switching E-RAB Info are newly added fields.
  • the Global eNB ID indicates the identity of the base station to which the calling party accesses, and the eNB UE SIAP ID indicates that the calling party is on the Global eNB ID.
  • the E-RAB ID represents the enhanced radio access bearer of the calling party that can be locally exchanged with the enhanced wireless access bearer of the called party.
  • the remaining fields can be consistent with existing LTE protocol specifications to improve the compatibility of the message.
  • the base station 11 accessed by the called party 15 will receive a message carrying the local exchange information from the serving gateway 10;
  • the local exchange information includes: a calling party identifier, a calling party, and a called party.
  • the message carrying the local exchange information may also include: the identifier of the base station to which the calling party is connected.
  • step S114 the base station 11 will determine whether there is an available X2 interface based connection between itself (base station 1 1 ) and the base station 12 to which the calling party 16 is connected based on the local exchange information.
  • step S115 the RRC connection reconfiguration is performed between the called party 15 and the base station 11, and the method includes: the base station 1 1 sends a RRC Connection Reconfiguration (RRC Connection Reconfiguration) message to the called party 15, and then By the called party 15 A RRC Connection Reconfiguration Complete message is transmitted to the base station 11.
  • RRC Connection Reconfiguration RRC Connection Reconfiguration
  • the two messages may be consistent with existing LTE protocol specifications to improve the compatibility of the schemes of the present invention.
  • step S1151 the base station 11 will initiate an X2 based interface connection with the base station 12 to which the calling party 16 is connected.
  • step S1 151 is implemented by the base station 11 sending a local switch setup request (X2AP: Local Switching SETUP REQ) message to the base station 12 through the X2 interface, and the specific content of the message is defined as shown in the following table. :
  • X2AP Local Switching SETUP REQ
  • the eNB UE X2AP ID represents the X2 application protocol identifier of the called party; the Local Switching eNB UE S1AP ID indicates the SI identity of the calling party in the base station to which the calling party accesses; E-RAB to be Local Switching List indicates the called party An enhanced radio access bearer for the local data exchange through the X2 interface; the E-RAB ID represents an enhanced radio access bearer associated with the called party that can be locally exchanged with the enhanced radio access bearer of the calling party;
  • the GTP Tunnel Endpoint indicates the GTP (GPRS Tunneling Protocol) endpoint of the X2 transport bearer, and is used to transmit the locally exchanged Protocol Data Unit (PDU); the Local Switching E-RAB ID indicates the identity of the enhanced enhanced radio access bearer of the calling party.
  • step S1152 After receiving the X2 interface-based connection establishment request for local exchange from the base station 11 to which the called party 15 is connected, in step S1152, the base station 12 to which the calling party 16 accesses will transmit to the base station 11 based on Connection establishment for local exchange on the X2 interface
  • step S1 152 is passed by the base station 12.
  • the X2 interface sends a Local Switching SETUP (SP2) message to the base station 11, and the specific content of the message is defined as follows:
  • the eNB UE X2AP ID represents the X2 application protocol identifier of the calling party; the Requiring eNB UE X2AP ID represents the X2 application protocol identifier of the called party; and the E-RAB successfully to be Local Switching List indicates that the X2 connection and the called party are successfully connected.
  • Related enhanced radio access bearers of the calling party that enhances the radio access bearer for local data exchange; the E-RAB ID represents the calling party that can be locally exchanged with the called party's enhanced radio access bearer
  • the GTP Tunnel Endpoint represents the GTP endpoint of the X2 transport bearer; the E-RAB failed to be Local Switching List indicates that the enhanced radio access bearer associated with the called party through the X2 connection fails to perform local data exchange.
  • the party's related enhanced wireless access bearer is the X2 application protocol identifier of the calling party; the Requiring eNB UE X2AP ID represents the X2 application protocol identifier of the called party; and the
  • the method further includes a step S116, the base station 11 accessed by the called party 15 sends a message to the serving gateway 10, where the message carries whether the connection based on the X2 interface is established.
  • the message may be implemented by a modified E-RAB SETUP RESPONSE message; specifically, an optional field may be added to the existing enhanced radio access bearer setup response message.
  • E-RAB Setup Item Enhanced Radio Access Bearer Setup Items
  • the base station 11 and the base station 12 mutually transmit the called party 15 and the calling party through the connection. Data for communication between 16.
  • the serving gateway 10 retains user plane information of the associated enhanced radio access bearers assigned to the calling party 16 and the called party 15 even if the base station indicates that the local switched data path is successfully established.
  • the data path between the calling party 16 and the serving gateway 10 and the data path between the called party 15 and the monthly gateway 10 are still valid.
  • the base station reserves the user plane information of the serving gateway for the calling party 16 and the called party 15 respectively. Therefore, during the communication between the calling party 16 and the called party 15, the local switched data path based on the X2 interface can be suspended at any time, and the data path based on the S1 interface exchanged through the serving gateway 10 is used instead.
  • the local switched data path based on the X2 interface may be affected.
  • the original X2 interface-based local switched data path can remain unchanged.
  • the mobile communication system of this embodiment includes: a serving gateway 20, a base station 21, a base station 22, a base station 23, a user equipment 25, and a user equipment 26.
  • the specific scenario is as follows: The base stations 21, 22, and 23 are all connected to the serving gateway 20.
  • the first user equipment 25 and the second user equipment 26 are communicating with each other, and the second user equipment 26 is connected to the base station 21 and the first user equipment 25 is accessed. It is preparing to switch from base station 22 to base station 23.
  • the method flow in this embodiment will be described in detail below.
  • step S201 the user equipment 25 transmits a measurement report to the base station 22.
  • the base station 22 Based on the measurement report and instructions from the core network (eg, to the service gateway 20), The base station 22 is aware that the base station 23 will take over itself (the base station 22) to provide the access service of the user equipment 25.
  • step S202 the base station 22 to which the first user equipment 25 is connected will send a handover request to the base station 23 regarding the communication between the user equipment 25 and the user equipment 26.
  • step S202 is implemented by the base station 22 transmitting a handover request message based on the S1 interface to the service gateway 20.
  • the serving gateway 20 will forward the handover request to the base station 23.
  • X2AP there is an X2 interface connection between the base station 22 and the base station 23, and the base station 22 accessed by the first user equipment 25 sends a modified handover to the base station 23 through the X2 interface.
  • the Global eNB ID indicates the identity of the base station to which the communicating party is connected, that is, the base station 21 to which the second user equipment 26 accesses; the eNB UE X2AP ID indicates the counterpart of the communication, that is, the second user equipment 26 is in the above Global The X2 application protocol identifier on the eNB ID; the Local Switching E-RAB ID indicates the enhanced wireless connection of the other party (the second user equipment 26) that can be locally exchanged with the enhanced radio access bearer of the own party (the first user equipment 25) Incoming bearers; all three fields are new. The remaining fields can be consistent with existing LTE protocol specifications to improve the compatibility of the message.
  • the base station 23 will receive a message with a handover request regarding communication between the first user equipment 25 and the second user equipment 26.
  • the handover request message may be based on an X2 interface or based on an S1 interface.
  • the base station 23 will determine if there is an available X2 interface based connection between itself and the base station 21 to which the second user equipment 26 is connected.
  • the base station 23 will also allocate a number of GTP endpoint resources: one of which is based on the X2 interface for the base station 22 to forward data; the other is for a conventional data exchange path based on the S1 interface; wherein the other is based on the X2 interface Used for local exchange of data paths between the base station 21 and the base station 23.
  • step S205 the base station 23 initiates an X2-based interface connection with the base station 21 to which the second user equipment 26 is connected, and the connection is used to carry the first user equipment. Communication with the second user device 26 is 25.
  • step S205 is implemented by the base station 23 sending a local switched handover request (X2AP: Local Switching HO REQ) message to the base station 21 through the X2 interface, and the specific content of the message is defined as follows:
  • X2AP Local Switching HO REQ
  • the eNB UE X2AP ID indicates the X2 application protocol identifier of the first user equipment 25; the Local Switching eNB UE X2AP ID indicates the X2 application protocol identifier of the first user equipment 26 in the base station 21 to which the user equipment 26 is accessed, and the field may be Local.
  • the Switching eNB UE S IAP ID field is substituted, depending on whether the handover request message in step S202 is based on an X2 interface or an S1 interface; the E-RAB to be Local Switching List indicates that the first user equipment 25 wishes to exchange local data through the X2 interface.
  • the associated enhanced radio access bearer represents an enhanced radio access bearer associated with the first user equipment 25 that can be locally exchanged with the enhanced radio access bearer of the second user equipment 26;
  • the GTP Tunnel Endpoint represents X2
  • the GTP endpoint of the transport bearer is used to transmit the locally exchanged protocol data unit;
  • the Local Switching E-RAB ID represents the identity of the associated enhanced radio access bearer of the second user equipment 26.
  • step S206 the base station 21 accessed by the second user equipment 26 stops transmitting data of the second user equipment 26 to the first user equipment 25 to the base station 22, and allocates an X2 interface based between the base station 21 and the base station 23. Resources are used for local exchange.
  • step S207 the base station 21 connects the establishment initiated in response to the base station 23 based on the X2 interface. Specifically, step S207 is implemented by the base station 21 sending a local switched handover response (X2AP: Local Switching HO RSP) message to the base station 23 through the X2 interface, and the specific content of the message is defined as follows:
  • X2AP Local Switching HO RSP
  • the eNB UE X2AP ID represents the X2 application protocol identifier of the second user equipment 26; the Requiring eNB UE X2AP ID represents the X2 application protocol identifier of the first user equipment 25; and the E-RAB successfully to be Local Switching List indicates that the connection is successfully performed through the X2
  • the related enhanced radio access bearer of the second user equipment 26 that performs local exchange; the GTP Tunnel Endpoint represents the GTP endpoint of the X2 transport bearer; and the E-RAB failed to be Local Switching List indicates that the first user equipment 25 is connected through the X2 connection.
  • the local exchange handover request message in step S205 may be respectively in content with the foregoing embodiment.
  • the local exchange establishment request message in step S1151 and the local interaction establishment response message in step S1152 are consistent.
  • step S208 the base station 21 to which the second user equipment 26 is connected will transmit data (of the second user equipment 26 to the first user equipment 25) to the base station 23.
  • step S209 the base station 23 transmits a handover request acknowledgement (HANDOVER REQUEST ACKNOWLEDGE) message to the base station 22.
  • HANDOVER REQUEST ACKNOWLEDGE handover request acknowledgement
  • the handover request message in step S202 is based on the S1 interface; and accordingly, in step S209, the base station 23 sends a handover request acknowledgement message based on the S1 interface to the service gateway 20.
  • the serving gateway 20 will forward the handover request acknowledgement to the base station 22.
  • the handover request message in step S202 is based on the X2 interface; and correspondingly, in step S209, the base station 23 sends an X2 interface-based handover request acknowledgement message to the base station 22,
  • the specific content of the message is defined as the following table:
  • the Local Switching Setup Success Flag is a new optional field used as an indication of whether the X2 interface-based connection between the base station 23 and the base station 21 accessed by the second user equipment 26 is successfully established; This field does not exist in the Enhanced Radio Access Bearer Item (E-RAB Admitted Item), which means that the base station does not support the local switching function. If the value of this field is false, it means that the base station has The enhanced enhanced radio access bearer fails to establish a local switched data path; if the value of this field is true, it means that the base station successfully establishes a local switched data path for the associated enhanced radio access bearer.
  • the remaining fields can be consistent with existing LTE protocol specifications to improve the compatibility of the message.
  • the base station 21 After receiving the handover confirmation request message from the base station 23, the base station 21 will stop transmitting the data of the first user equipment 25 to the second user equipment 26 in step S210.
  • step S21 1 the first user equipment 25 and the base station 22 and the base station 23 accessed by the user equipment 25 will perform radio resource control layer connection reconfiguration and data forwarding.
  • the base station 22 sends a radio resource control layer connection reconfiguration (RRC Connection Reconfiguration) message to the first user equipment 25; the base station 22 sends an X2 interface based serial number status transmission (SN Status Transfer) message to the base station 23;
  • the base station 23 forwards the data buffered by the handover operation; the first user equipment 25 transmits a radio resource control layer connection reconfiguration complete (RRC Connection Reconfiguration Complete) message to the base station 23.
  • RRC Connection Reconfiguration radio resource control layer connection reconfiguration
  • step S212 the base station 23 will send a path exchange request to the serving gateway 20.
  • the access service of the first user equipment 25 is switched from the base station 22 to the base station 23, and the data communication between the first user equipment 25 and the second user equipment 26 is through the X2 interface based connection between the base station 21 and the base station 23.
  • Local exchange can still be implemented.
  • the mobile communication system of this embodiment includes: a serving gateway 30, a base station 31, a base station 32, a base station 33, a user equipment 35, and a user equipment 36.
  • the specific scenario is as follows: The base stations 31, 32, and 33 are all connected to the serving gateway 30, and the first user equipment 35 and the second user equipment 36 are communicating with each other through the X2 interface between the base station 31 and the base station 32, and the second user equipment 36 is connected.
  • the access of the first user equipment 35 is preparing to switch from the base station 32 to the base station 33, and there is no X2 interface based connection between the base station 31 and the base station 33.
  • the method flow in this embodiment is described in detail below.
  • step S301 the base station 32 receives the measurement report from the first user equipment 35, and determines that the base station 33 takes over itself (the base station 32) to provide the access device of the user equipment 35. Business.
  • step S302 the base station 32 transmits a handover request message regarding communication between the user equipment 35 and the user equipment 36 to the base station 33.
  • step S303 the base station 33 transmits a handover request acknowledgement message to the base station 32.
  • the handover request message and the handover request acknowledgement message may be based on the X2 interface.
  • step S304 the base station 32 will stop transmitting the data of the first user equipment 35 to the second user equipment 36 to the base station 31, and buffer the data based on the X2 interface, ready to receive data from the serving gateway 30.
  • step S305 the base station 32 will transmit a radio resource control layer connection reconfiguration message to the first user equipment 35.
  • step S306 the base station 32 will send an X2 interface based Local Switching HO Indication message to the base station 31.
  • step S307 the base station 31 will stop transmitting the data of the second user equipment 36 to the first user equipment 35 to the base station 32, and then transmit such data to the serving gateway 30. At the same time, the base station 31 will also transmit to the base station 32 GDP data carrying an end marker (End Marker) for indicating to the base station 32 the last data packet transmitted via the X2 interface based connection.
  • End Marker End Marker
  • step S308 the base station 32 terminates the buffering based on the receipt of the cutoff flag.
  • step S309 the base station 32 receives the data from the serving gateway 30 and buffers the data.
  • step S310 the base station 32 will transmit a sequence number status transmission (SN Status Transfer) message based on the X2 interface to the base station 33. At the same time, the base station 32 will forward the buffered data (of the second user equipment 36 to the first user equipment 35) to the base station 33.
  • SN Status Transfer sequence number status transmission
  • step S31 the first user equipment 35 will transmit a RRC Connection Reconfiguration Complete (RRC Connection Reconfiguration Complete) message to the base station 33.
  • step S312 the base station 33 will send a Path Switch Request (PATH SWITCH REQUEST) message to the Serving Gateway 30.
  • PATH SWITCH REQUEST Path Switch Request
  • the access service of the first user equipment 35 is switched from the base station 32 to the base station 33, and the data communication between the first user equipment 35 and the second user equipment 36 is implemented through the service gateway 30 and the connection based on the traditional S1 interface. exchange.
  • step S306 only the local exchange switching indication message in step S306 is added to the X2 interface.
  • the first switching device 100 includes: a first receiving device 101, a first determining device 102, and a first processing device 103.
  • the first switching device 100 is typically disposed in the base station 1 1 to which the called party 15 is connected in the embodiment shown in FIG.
  • the first receiving device 101 is configured to receive a message carrying the local exchange information from the serving gateway, where the local exchange information includes: a calling party identifier, an identifier of the enhanced radio access bearer corresponding to the calling party and the called party.
  • the first determining means 102 is configured to determine, based on the local exchange information, whether there is an available X2-interface based connection between the base station and a base station to which the calling party is connected.
  • the first processing device 103 is configured to initiate establishment of a connection with the base station to which the calling party is connected if there is an available X2 interface-based connection between the base station and the base station accessed by the calling party. Connection based on the X2 interface.
  • the first receiving device 101 is configured to complete step S113, and the first determining device 102 is configured to perform step S1 14.
  • the first processing device 103 is configured to perform step S1 151.
  • FIG. 5 is a block diagram showing the structure of a second switching device that implements local switching in a base station in accordance with one embodiment of the present invention.
  • the second switching device 200 includes: a second receiving device 201, and a first responding device 202.
  • the second switching device 200 is typically disposed in the base station 12 to which the calling party 16 is connected in the embodiment of FIG.
  • the second receiving device 201 is configured to receive a base station based on the base station accessed by the called party A connection establishment request for local exchange on the X2 interface.
  • the first responding device 202 is configured to send a connection establishment response for the local exchange based on the X2 interface to the base station accessed by the called party.
  • the second receiving device 201 is configured to complete step S1 151, and the first responding device 202 is configured to perform step S1152.
  • FIG. 6 is a block diagram showing the structure of a third switching device that implements local switching in a serving gateway, in accordance with one embodiment of the present invention.
  • the third switching device 300 includes a second processing device 301.
  • the third switching device 300 is typically disposed in the Serving Gateway 10 in the embodiment of Figure 1.
  • the second processing device 301 is configured to: determine whether the base station accessed by the calling party and the base station accessed by the called party access the serving gateway, and if yes, send to the base station accessed by the called party
  • the message carrying the local exchange information includes: the identity of the calling party, the identity of the enhanced wireless access corresponding to the calling party and the called party.
  • the third switching device 300 is operative to perform steps S1 12 and S113.
  • FIG. 7 is a block diagram showing the structure of a first switching device that implements handover in a base station according to an embodiment of the present invention.
  • the first switching device 400 includes: a third receiving device 401, a second determining device 402, and a third processing device 403.
  • the first change device 400 is typically disposed in the base station 23 in the embodiment shown in FIG.
  • the third receiving device 401 is configured to receive a handover request regarding communication between the first user equipment and the second user equipment.
  • the second determining means 402 is configured to determine whether there is an available X2 interface based connection between the base station and the base station to which the second user equipment is connected.
  • the third processing device 403 is configured to: if there is an available X2 interface-based connection between the base station and the base station accessed by the second user equipment, initiate establishment of a base station connected to the second user equipment An X2 interface based connection between the first user equipment and the second user equipment.
  • FIG. 8 is a block diagram showing the structure of a second switching device that implements handover in a base station according to an embodiment of the present invention.
  • the second switching device 500 includes: a first transmitting device 501, a fourth receiving device 502, and a fourth processing device 503.
  • the second switching device 500 is typically disposed in the base station 22 to which the first user equipment 25 is connected in the embodiment shown in FIG.
  • the first transmitting device 501 is configured to send, to another base station, a handover request regarding communication between the first user equipment and the second user equipment.
  • the fourth receiving device 502 is configured to receive a handover request acknowledgement from the another base station.
  • the fourth processing device 503 is configured to stop sending data of the first user equipment to the second user equipment.
  • the first transmitting device 501 is configured to perform step S202
  • the fourth receiving device 502 is configured to complete step S209
  • the fourth processing device 503 is configured to perform step S210.
  • the device referred to in the present invention may be implemented by a software function module, may also be implemented by a hardware module, or may be implemented by a combination of hardware and software.

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

Abstract

Un procédé et un dispositif permettant une commutation locale entre plusieurs stations de base sont décrits dans la présente invention. Selon un des modes de réalisation de la présente invention, un procédé permettant de réaliser une commutation locale dans la station de base est fourni, dans lequel l'abonné appelé accède à la station de base, le procédé incluant les étapes suivantes consistant à : (S113) recevoir un message contenant des informations de commutation locale à partir d'une passerelle de desserte ; (S114) selon les informations de commutation locale, déterminer s'il existe une connexion disponible basée sur une interface X2 entre la station de base et la station de base à laquelle l'abonné appelant accède ; (S115) s'il existe une connexion disponible basée sur l'interface X2 entre la station de base et la station de base à laquelle l'abonné appelant accède, alors initialiser pour établir la connexion basée sur l'interface X2 avec la station de base à laquelle l'abonné appelant accède. Grâce à l'application du procédé et du dispositif selon la présente invention, l'interface X2 entre les stations de base peut être utilisée de manière effective pour réaliser la commutation locale de données et le transfert intercellulaire, économisant ainsi la ressource de liaison terrestre de l'ensemble du système de radiocommunication, et réduisant significativement le coût de transmission réseau de la communication entre les utilisateurs.
PCT/CN2010/071163 2010-03-19 2010-03-19 Procédé et dispositif permettant une commutation locale entre plusieurs stations de base WO2011113210A1 (fr)

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CN201080059706.5A CN102687558B (zh) 2010-03-19 2010-03-19 多基站间本地交换的方法及装置
PCT/CN2010/071163 WO2011113210A1 (fr) 2010-03-19 2010-03-19 Procédé et dispositif permettant une commutation locale entre plusieurs stations de base

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220815A (zh) * 2012-01-18 2013-07-24 中兴通讯股份有限公司 一种基站间接口连接建立方法及装置
CN103228016A (zh) * 2013-05-02 2013-07-31 中国联合网络通信集团有限公司 基于小区切换的数据处理方法、设备和系统
WO2013185542A1 (fr) * 2012-06-12 2013-12-19 中兴通讯股份有限公司 Procédé de mise en œuvre et dispositif d'élément de réseau pour une intercommunication locale
CN105264962A (zh) * 2014-05-08 2016-01-20 华为技术有限公司 一种ip语音交换的方法以及相关设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159905A (zh) * 2007-11-07 2008-04-09 华为技术有限公司 基站控制器内实现本地交换方法、核心网设备及网络系统
WO2008057359A1 (fr) * 2006-11-01 2008-05-15 Interdigital Technology Corporation Cellules uniquement resélectionnables vers le réseau lte et liste d'informations de cellules pour transfert
CN101374355A (zh) * 2008-10-24 2009-02-25 华为技术有限公司 一种实现本地交换的方法和装置
WO2009066337A1 (fr) * 2007-11-19 2009-05-28 Fujitsu Limited Système de communication
CN101494885A (zh) * 2008-01-21 2009-07-29 中兴通讯股份有限公司 一种多承载共享的ambr切换控制方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1884090B1 (fr) * 2005-05-27 2014-08-13 Telefonaktiebolaget L M Ericsson (publ) Commutation locale dans des reseaux d'acces radio

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008057359A1 (fr) * 2006-11-01 2008-05-15 Interdigital Technology Corporation Cellules uniquement resélectionnables vers le réseau lte et liste d'informations de cellules pour transfert
CN101159905A (zh) * 2007-11-07 2008-04-09 华为技术有限公司 基站控制器内实现本地交换方法、核心网设备及网络系统
WO2009066337A1 (fr) * 2007-11-19 2009-05-28 Fujitsu Limited Système de communication
CN101494885A (zh) * 2008-01-21 2009-07-29 中兴通讯股份有限公司 一种多承载共享的ambr切换控制方法
CN101374355A (zh) * 2008-10-24 2009-02-25 华为技术有限公司 一种实现本地交换的方法和装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103220815A (zh) * 2012-01-18 2013-07-24 中兴通讯股份有限公司 一种基站间接口连接建立方法及装置
CN103220815B (zh) * 2012-01-18 2019-02-15 中兴通讯股份有限公司 一种基站间接口连接建立方法及装置
WO2013185542A1 (fr) * 2012-06-12 2013-12-19 中兴通讯股份有限公司 Procédé de mise en œuvre et dispositif d'élément de réseau pour une intercommunication locale
CN103491584A (zh) * 2012-06-12 2014-01-01 中兴通讯股份有限公司 一种本地互通的实现方法及网元设备
CN103228016A (zh) * 2013-05-02 2013-07-31 中国联合网络通信集团有限公司 基于小区切换的数据处理方法、设备和系统
CN105264962A (zh) * 2014-05-08 2016-01-20 华为技术有限公司 一种ip语音交换的方法以及相关设备

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