WO2012106961A1 - 建立业务承载的方法及系统 - Google Patents

建立业务承载的方法及系统 Download PDF

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Publication number
WO2012106961A1
WO2012106961A1 PCT/CN2011/082052 CN2011082052W WO2012106961A1 WO 2012106961 A1 WO2012106961 A1 WO 2012106961A1 CN 2011082052 W CN2011082052 W CN 2011082052W WO 2012106961 A1 WO2012106961 A1 WO 2012106961A1
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WIPO (PCT)
Prior art keywords
bearer
secondary cell
setup request
user terminal
bearer setup
Prior art date
Application number
PCT/CN2011/082052
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English (en)
French (fr)
Inventor
李磊
Original Assignee
中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012106961A1 publication Critical patent/WO2012106961A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/086Load balancing or load distribution among access entities
    • H04W28/0861Load balancing or load distribution among access entities between base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for establishing a service bearer. Background technique
  • LTE-A Long Term Evolution-Advanced
  • a service bearer is established between the cell and the user terminal. How to assign different bearers to different secondary cells is a problem that needs to be solved.
  • the main purpose of the present invention is to provide a method and system for establishing a service bearer, so as to solve the problem that a plurality of cells cannot be served by one user terminal in the LTE-A system in the prior art.
  • a method of establishing a service bearer is provided.
  • the method for establishing a service bearer according to the present invention includes:
  • the user terminal sends one or more first bearer setup requests
  • the primary cell selects to forward the first bearer setup request to one or more of the secondary cells according to the load data of the secondary cell.
  • the secondary cell obtains bearer data by sending a second bearer setup request to the core network, and the user terminal establishes a service bearer with the secondary cell according to the first bearer setup request, Obtain the bearer data.
  • the secondary cell obtains the bearer data by sending a second bearer setup request to the core network, and the user terminal establishes a service bearer with the secondary cell according to the first bearer setup request, and acquires the bearer data, including :
  • the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message;
  • the user terminal sends a third acknowledgement message to the secondary cell
  • the secondary cell sends the data to the user terminal.
  • the secondary cell obtains the bearer data by sending a second bearer setup request to the core network, and the user terminal establishes a service bearer with the secondary cell according to the first bearer setup request, and acquires the bearer data, including :
  • the user terminal sends a third acknowledgement message to the secondary cell
  • the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message;
  • the secondary cell sends the data to the user terminal.
  • the auxiliary cell obtains the bearer data by sending the second bearer setup request to the core network, and the step of the user terminal establishing the service bearer with the secondary cell according to the first bearer setup request, and acquiring the bearer data.
  • the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message;
  • the user terminal sends a third acknowledgement message to the secondary cell
  • the secondary cell sends the data to the user terminal.
  • the secondary cell obtains the bearer data by sending a second bearer setup request to the core network, and the user terminal establishes a service bearer with the secondary cell according to the first bearer setup request, and acquires the bearer data, including :
  • the user terminal sends a third acknowledgement message to the secondary cell
  • the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message;
  • the secondary cell sends the data to the user terminal.
  • the secondary cell obtains the bearer data by sending a second bearer setup request to the core network, and the user terminal establishes a service bearer with the secondary cell according to the first bearer setup request, and acquires the bearer data, including :
  • the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message;
  • the user terminal sends a third acknowledgement message to the secondary cell;
  • the secondary cell sends the data to the user terminal.
  • the secondary cell obtains the bearer data by sending a second bearer setup request to the core network, and the user terminal establishes a service bearer with the secondary cell according to the first bearer setup request, and acquires the bearer data, including :
  • the user terminal sends a third acknowledgement message to the secondary cell
  • the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message;
  • the secondary cell sends the data to the user terminal.
  • the method further includes:
  • the primary cell acquires the load data of the secondary cell in real time by means of load reporting.
  • the method further includes:
  • the secondary cell feeds back a fourth acknowledgement message to the primary cell, where the fourth acknowledgement message includes: an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the method further includes:
  • the core network Determining whether the second bearer setup request is valid. When the second bearer setup request is valid, the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message. When the second bearer setup request is invalid, the core network returns The first failure message.
  • a system for establishing a service bearer is provided.
  • the system for establishing a service bearer includes: a user terminal, a primary cell, an auxiliary cell, and a core network;
  • a user terminal configured to send one or more first bearer setup requests, and establish a service bearer with the secondary cell according to the first bearer setup request, to obtain bearer data;
  • a primary cell configured to: forward, according to load data of the secondary cell, the first bearer setup request to one or more of the secondary cells;
  • the secondary cell is configured to send a second bearer setup request to the core network by using the secondary cell to obtain bearer data.
  • the method and system for establishing a service bearer according to the present invention can solve the problem that a plurality of cells cannot be served by one user terminal in the LTE-A system in the prior art, thereby achieving the service of implementing multiple cells as one user terminal, thereby improving The throughput at the cell edge, or the effect of increasing system throughput.
  • FIG. 1 is a schematic structural diagram of a system for establishing a service bearer according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for establishing a service bearer according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for establishing a service bearer according to Embodiments 1 to 6 of the present invention.
  • FIG. 4 is a flowchart of a method for establishing a service bearer according to Embodiment 7 of the present invention. detailed description
  • the invention provides a method and system for establishing a service bearer.
  • FIG. 1 is a schematic structural diagram of a system for establishing a service bearer according to an embodiment of the present invention.
  • the system for establishing a service includes: a user terminal 1, a primary cell 2, a secondary cell 3, and a core network 4; wherein, the user terminal 1 is configured to send one or more first bearer establishment requests; a cell 2, configured to: according to the load data of the secondary cell 3, select to forward the first bearer setup request to the one or more secondary cells 3; the secondary cell 3, configured to send the second bearer setup request to the core network, to obtain the bearer data; The user terminal 1 establishes a service bearer with the secondary cell 3 according to the first bearer setup request to obtain bearer data.
  • the above embodiments of the present invention further improve the LTE system's edge user throughput, edge user frequency utilization, and overall system performance by adopting CoMP (Coordinated Multi-point transmission/reception) technology.
  • the primary cell has the CoMP, so that the load information of all the cells is centralized. Therefore, when the service bearer is established, the bearer may be allocated according to the resources required by the bearer, the resource information of each cell in the CoMP, and the characteristics of the bearer. In a certain cell, not every cell has the bearer, and the data about a bearer sent from the core network can be directly sent to the evolved Node B (eNB, eNodeB), that is, the cell node. Avoid the eNB entering a state of excessive load.
  • the first bearer setup request in this embodiment may be a radio bearer setup request
  • the second bearer setup request is an E-RAB bearer setup request.
  • LTE-A is designated as an important element in its technical framework, and in the process of wireless communication, a plurality of geographically separated transmission points cooperate to participate in one user terminal UE transmission and / Receive data to improve the quality of the edge user's received signal the amount.
  • the system can increase the coverage of high-speed data rates through CoMP transmission and reception techniques, thereby increasing the throughput at the cell edge or increasing system throughput.
  • FIG. 2 is a flow chart of a method for establishing a service bearer according to an embodiment of the present invention. As shown in FIG. 2, and in conjunction with FIG. 1, the method includes the following steps:
  • Step S202 The user terminal 1 sends one or more first bearer setup requests.
  • Step S204 The primary cell 2 may select to forward the first bearer setup request to one of the upper secondary cells 3 according to the load data of the secondary cell 3.
  • the secondary cell 3 can obtain the bearer data by sending the second bearer setup request to the core network 4, and the user terminal 1 can establish a service bearer with the auxiliary cell 3 according to the first bearer setup request to obtain the bearer data.
  • the primary cell owns the CoMP, so that the load information of all the cells is centralized. Therefore, when the service bearer is established, the resource required by the bearer, the resource information of each cell in the CoMP, and the characteristics of the bearer may be used.
  • the bearer is allocated in a certain cell, and not every cell has the bearer.
  • the data about the bearer sent from the core network can be directly sent to the eNB that accepts the bearer, that is, each cell node, to prevent the eNB from entering.
  • the overloaded state so that the cell network communication system can increase the coverage of the high-speed data rate through the CoMP transmission and reception technology, thereby improving the throughput of the cell edge or increasing the system throughput.
  • the foregoing embodiment of the present invention relates to an eNB of an LTE-A system, that is, a cell and a user terminal (UE), that is, an evolving terminal, and a method for establishing a hybrid bearer based on multiple cells of the CoMP.
  • CoMP technology can be used to implement multiple cells serving one UE.
  • the first bearer setup request in the embodiment of the present invention may be a radio bearer setup request, and the second bearer setup request is an E-RAB bearer setup request.
  • the method may further include: the secondary cell feeding back a fourth acknowledgement message to the primary cell, where the fourth acknowledgement message includes: an identifier of the first bearer setup request and the second bearer Establish the identifier of the request.
  • the method may further include: Step S201: The primary cell 2 and the secondary cell 3 perform load information interaction, and the primary cell 2 passes the load on the method. The load data of the auxiliary cell 3 is acquired in real time.
  • FIG. 3 is a flowchart of a method for establishing a service bearer according to Embodiments 1 through 6 of the present invention.
  • the primary cell 2 establishes the service bearer on the appropriate secondary cell 3.
  • the UE has data interaction with the core network 4, the data directly interacts with the corresponding bearer of the cell.
  • the primary cell 2 since the neighboring cells are mutually adjacent, the primary cell 2 has already learned the auxiliary status of the secondary cell 3 by means of load reporting.
  • the working process of the primary cell 2 includes the following embodiments.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the first embodiment includes the following steps:
  • Step S301 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Step S302 The primary cell 2 may select to forward the first bearer setup request to one or more secondary cells 3 according to the load data of the secondary cell 3.
  • the primary cell 2 selects a secondary cell 3 to initiate a bearer setup request through the load condition of the existing secondary cell 3.
  • the request carries the ID information of the user terminal 1, and the first bearer setup request may be a radio bearer setup request.
  • Step S303 After receiving the first bearer setup request of the primary cell 2, the secondary cell 3 sends a second bearer setup request to the core network 4.
  • the second bearer setup request may be an E-RAB bearer setup request.
  • Step S304 the core network 4 responds to the second bearer setup request of the secondary cell 3, and returns the bearer data and the first acknowledgement message.
  • the second bearer setup request of the core network 4 in response to the secondary cell 3 may be: sending a response E-RAB bearer setup request to the secondary serving cell 3, and returning the first acknowledgement message at the same time. Can be a success message.
  • Step S305 the secondary cell 3 accepts the first bearer setup request, and returns a second acknowledgement message to the user terminal 1.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1, and the message carries the radio bearer identifier that the user terminal 1 initiates to the primary cell 2.
  • Step S306 the user terminal 1 sends a third acknowledgement message to the secondary cell 3, and the secondary cell 3 can send bearer data to the user terminal 1.
  • the third acknowledgement message is used to confirm that the subscriber terminal 1 has successfully established a radio bearer with the secondary serving cell 3.
  • Step S307 the secondary cell 3 feeds back a fourth acknowledgement message to the primary cell 2.
  • the fourth confirmation message includes: an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the purpose of this step is as follows: The secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer successfully established message.
  • the fourth acknowledgement message further carries an identifier of the radio bearer and an identifier of the E-RAB bearer.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the E-RAB connection process between the auxiliary cell 3 and the core network 4 and the establishment of the radio bearer by the auxiliary cell 3 and the user terminal 1 may be a parallel process. Therefore, the present invention can The present invention is implemented as follows. With reference to FIG. 1, the specific steps of the second embodiment are as follows:
  • Step S301 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Step S302 The primary cell 2 may select to forward the first bearer setup request to one or more secondary cells 3 according to the load data of the secondary cell 3.
  • the primary cell 2 selects a secondary cell 3 to initiate a bearer setup request by using the load status of the existing secondary cell 3.
  • the message carries the ID information of the user terminal 1, the first bearing
  • the bearer setup request may be a radio bearer setup request.
  • Step S305 the secondary cell 3 accepts the first bearer setup request, and returns a second acknowledgement message to the user terminal 1.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1, and the message carries the radio bearer identifier that the user terminal 1 initiates to the primary cell 2.
  • Step S306 the user terminal 1 sends a third acknowledgement message to the secondary cell 3, and the secondary cell 3 can send bearer data to the user terminal 1.
  • the third acknowledgement message is used to confirm that the subscriber terminal 1 has successfully established a radio bearer with the secondary serving cell 3.
  • Step S303 After receiving the first bearer setup request of the primary cell 2, the secondary cell 3 sends a second bearer setup request to the core network 4.
  • the second bearer setup request may be an E-RAB bearer setup request.
  • Step S304 the core network 4 responds to the second bearer setup request of the secondary cell 3, and returns the bearer data and the first acknowledgement message.
  • the second bearer setup request of the core network 4 in response to the secondary cell 3 may be: sending a response E-RAB bearer setup request to the secondary serving cell 3, and the first acknowledgement message returned at the same time may be a success message.
  • Step S307 the secondary cell 3 feeds back a fourth acknowledgement message to the primary cell 2.
  • the fourth confirmation message includes: an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the purpose of this step is as follows: The secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer successfully established message.
  • the fourth acknowledgement message further carries an identifier of the radio bearer and an identifier of the E-RAB bearer.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the secondary cell 3 establishes an E-RAB with the core network 4.
  • the connection process and the establishment of the radio bearer by the auxiliary cell 3 and the user terminal 1 can be a parallel process. Therefore, the present invention can implement the present invention according to the following steps. Referring to FIG. 1, the specific steps of the third embodiment are as follows:
  • Step S301 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Step S302 The primary cell 2 may select to forward the first bearer setup request to one or more secondary cells 3 according to the load data of the secondary cell 3.
  • the primary cell 2 selects a secondary cell 3 to initiate a bearer setup request through the load condition of the existing secondary cell 3.
  • the message carries the ID information of the user terminal 1, and the first bearer setup request may be a radio bearer setup request.
  • Step S305 the secondary cell 3 accepts the first bearer setup request, and returns a second acknowledgement message to the user terminal 1.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1, and the message carries the first radio bearer identifier initiated by the user terminal 1 to the primary cell 2.
  • Step S303 After receiving the first bearer setup request of the primary cell 2, the secondary cell 3 sends a second bearer setup request to the core network 4.
  • the second bearer setup request may be an E-RAB bearer setup request.
  • Step S304 the core network 4 responds to the second bearer setup request of the secondary cell 3, and returns the bearer data and the first acknowledgement message.
  • the second bearer setup request of the core network 4 in response to the secondary cell 3 may be: sending a response E-RAB bearer setup request to the secondary serving cell 3, and the first acknowledgement message returned may be a success message.
  • Step S306 the user terminal 1 sends a third acknowledgement message to the secondary cell 3, and the secondary cell 3 can send bearer data to the user terminal 1.
  • the third confirmation message is used to confirm that the user terminal 1 has succeeded and assisted.
  • the serving cell 3 establishes a radio bearer.
  • Step S307 the secondary cell 3 feeds back a fourth acknowledgement message to the primary cell 2.
  • the fourth acknowledgement message includes an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the purpose of this step is as follows:
  • the secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer successfully established message.
  • the fourth acknowledgement message further carries an identifier of the radio bearer and an identifier of the E-RAB bearer.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the E-RAB connection process between the auxiliary cell 3 and the core network 4 and the establishment of the radio bearer by the auxiliary cell 3 and the user terminal 1 may be a parallel process. Therefore, the present invention can The present invention is implemented as follows. With reference to FIG. 1, the specific steps of the fourth embodiment are as follows:
  • Step S301 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Step S302 The primary cell 2 may select to forward the first bearer setup request to one or more secondary cells 3 according to the load data of the secondary cell 3.
  • the primary cell 2 selects a secondary cell 3 to initiate a bearer setup request through the load condition of the existing secondary cell 3.
  • the request carries the ID information of the UE, and the first bearer setup request may be a radio bearer setup request.
  • Step S305 the secondary cell 3 accepts the first bearer setup request, and returns a second acknowledgement message to the user terminal 1.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1, and the message carries the radio bearer identifier that the user terminal 1 initiates to the primary cell 2.
  • Step S303 After receiving the first bearer setup request of the primary cell 2, the secondary cell 3 sends a second bearer setup request to the core network 4.
  • the second bearer setup request may be an E-RAB bearer setup request.
  • the user terminal 1 sends a third acknowledgement message to the secondary cell 3, and the secondary cell 3 can deliver bearer data to the user terminal 1.
  • the third acknowledgement message is used to confirm that the subscriber terminal 1 has successfully established a radio bearer with the secondary serving cell 3.
  • Step S304 the core network 4 responds to the second bearer setup request of the secondary cell 3, and returns the bearer data and the first acknowledgement message.
  • the second bearer setup request of the core network 4 in response to the secondary cell 3 may be: sending a response E-RAB bearer setup request to the secondary serving cell 3, and the first acknowledgement message returned may be a success message.
  • Step S307 the secondary cell 3 feeds back a fourth acknowledgement message to the primary cell 2.
  • the fourth confirmation message includes: an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the purpose of this step is as follows: The secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer successfully established message.
  • the fourth acknowledgement message further carries an identifier of the radio bearer and an identifier of the E-RAB bearer.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the E-RAB connection process between the auxiliary cell 3 and the core network 4 and the establishment of the radio bearer by the auxiliary cell 3 and the user terminal 1 may be a parallel process. Therefore, the present invention can The present invention is implemented as follows. With reference to FIG. 1, the specific steps of the fifth embodiment are as follows:
  • Step S301 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Step S302 The primary cell 2 may select to forward the first bearer setup request to one or more secondary cells 3 according to the load data of the secondary cell 3.
  • the primary cell 2 selects a secondary cell 3 to initiate a bearer setup request by using the load status of the existing secondary cell 3.
  • the request carries the ID information of the user terminal 1, and the first bearer setup request may be a radio bearer setup request.
  • Step S303 After the secondary cell 3 receives the first bearer setup request of the primary cell 2, the secondary cell 3 sends a second bearer setup request to the core network 4.
  • the second bearer setup request may be an E-RAB bearer setup request.
  • Step S305 the secondary cell 3 accepts the first bearer setup request, and returns a second acknowledgement message to the user terminal 1.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1, and the message carries the radio bearer identifier that the user terminal 1 initiates to the primary cell 2.
  • Step S304 the core network 4 responds to the second bearer setup request of the secondary cell 3, and returns the bearer data and the first acknowledgement message.
  • the second bearer setup request of the core network 4 in response to the secondary cell 3 may be: sending a response E-RAB bearer setup request to the secondary serving cell 3, and the first acknowledgement message returned may be a success message.
  • Step S306 the user terminal 1 sends a third acknowledgement message to the secondary cell 3, and the secondary cell 3 can send bearer data to the user terminal 1.
  • the third acknowledgement message is used to confirm that the subscriber terminal 1 has successfully established a radio bearer with the secondary serving cell 3.
  • Step S307 the secondary cell 3 feeds back a fourth acknowledgement message to the primary cell 2.
  • the fourth confirmation message includes: an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the purpose of this step is as follows: The secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer successfully established message.
  • the fourth acknowledgement message further carries an identifier of the radio bearer and an identifier of the E-RAB bearer.
  • the process of establishing the E-RAB connection between the secondary cell 3 and the core network 4 and the establishment of the radio bearer by the secondary cell 3 and the user terminal 1 may be a parallel process. Therefore, the present invention can be implemented in accordance with the following steps. In conjunction with FIG. 1, the specific steps of the sixth embodiment are as follows:
  • Step S301 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Step S302 The primary cell 2 may select to forward the first bearer setup request to one or more secondary cells 3 according to the load data of the secondary cell 3.
  • the primary cell 2 selects a secondary cell 3 to initiate a bearer setup request through the load condition of the existing secondary cell 3.
  • the request carries the ID information of the user terminal 1, and the first bearer setup request may be a radio bearer setup request.
  • Step S303 After receiving the first bearer setup request of the primary cell 2, the secondary cell 3 sends a second bearer setup request to the core network 4.
  • the second bearer setup request may be an E-RAB bearer setup request.
  • Step S305 the secondary cell 3 accepts the first bearer setup request, and returns a second acknowledgement message to the user terminal 1.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1, and the message carries the radio bearer identifier that the user terminal 1 initiates to the primary cell 2.
  • Step S306 the user terminal 1 sends a third acknowledgement message to the secondary cell 3, and the secondary cell 3 can send bearer data to the user terminal 1.
  • the third acknowledgement message is used to confirm that the subscriber terminal 1 UE has successfully established a radio bearer with the auxiliary service cell 3.
  • Step S304 the core network 4 responds to the second bearer setup request of the secondary cell 3, and returns the bearer data and the first acknowledgement message.
  • the second bearer setup request of the core network 4 in response to the secondary cell 3 may be: sending a response E-RAB bearer setup request to the secondary serving cell 3, and the first acknowledgement message returned may be a success message.
  • Step S307 the secondary cell 3 feeds back a fourth acknowledgement message to the primary cell 2.
  • the fourth confirmation message includes: an identifier of the first bearer setup request and an identifier of the second bearer setup request.
  • the purpose of this step is as follows: The secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer successfully established message.
  • the fourth acknowledgement message further carries an identifier of the radio bearer and an identifier of the E-RAB bearer.
  • FIG. 4 is a flowchart of a method for establishing a service bearer according to Embodiment 7 of the present invention.
  • the primary cell 2 establishes each service bearer on the appropriate secondary cell 3.
  • any A service bearer data will interact directly on the corresponding bearer of the cell.
  • the primary cell has already learned the auxiliary status of the secondary cell in the manner of the load reporting, and the E-RAB bearer established by each secondary cell in the seventh embodiment of the present invention
  • Both the radio bearer and the radio bearer are parallel processes. If the bearer establishment of a certain secondary cell has a result, the result is fed back to the primary cell.
  • Embodiment 7 of the present invention As shown in FIG. 4, and in conjunction with FIG. 1, when the UE needs to establish multiple service bearers, the implementation steps of Embodiment 7 of the present invention are as follows:
  • Step S401 The user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • the request carries a list that needs to establish a bearer.
  • Step S402 the primary cell 2 selects a plurality of suitable secondary cells 3 to initiate a bearer setup request by using the load status of the existing secondary cell 3.
  • Step S403 After receiving the bearer setup request of the primary cell 2, each secondary cell 3 initiates an E-RAB bearer setup request to the core network 4.
  • Step S404 After the core network 4 responds to the E-RAB bearer setup success message, each secondary cell 3 responds to the bearer setup success message to the primary cell 2 through the X2 interface.
  • Step S405 Each secondary cell 3 actively initiates a radio bearer setup request message with the user terminal 1, and the message carries the radio bearer identifier initiated by the user terminal 1 to the primary cell.
  • Step S406 the user terminal 1 sends a radio bearer setup success confirmation message to each of the secondary cells 3;
  • the confirmation message confirms that the terminal has successfully established a wireless bearer with the secondary serving cell.
  • Step S407 Each secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer success message.
  • the message carries the bearer establishment success list of the secondary cell 3.
  • the process of establishing the E-RAB connection between the secondary cell 3 and the core network 4 and the process of establishing the radio bearer between the secondary cell 3 and the user terminal 1 may be a parallel process. Therefore, the present invention is in the user.
  • the terminal 1 When the terminal 1 establishes a plurality of services at the same time, it also has the same embodiment as the second to sixth embodiments when establishing a service carrier.
  • the method may further include: determining whether the second bearer setup request is valid, where the second bearer is established. When the request is valid, the core network responds to the second bearer setup request of the secondary cell, and returns the bearer data and the first acknowledgement message. Otherwise, the core network returns the first failure message.
  • the method may further include: determining whether the first bearer setup request is valid, when When the first bearer setup request is valid, the user terminal sends a third acknowledgement message to the secondary cell, and the secondary cell sends the bearer data to the user terminal. Otherwise, the user terminal sends the second failure message to the secondary cell.
  • Embodiments 1 to 7 may further include the following implementation steps:
  • the user terminal 1 initiates a radio bearer setup request command to the primary cell 2.
  • Zone 3 initiates a bearer setup request.
  • the message carries the ID information of the user terminal 1.
  • the secondary cell 3 initiates an E-RAB 7 bearer setup request to the core network 4.
  • the core network 4 transmits a response E-RAB bearer setup failure message to the secondary cell 3.
  • the failure message carries the reason for the failure.
  • the secondary cell 3 actively initiates a radio bearer setup request success message with the user terminal 1.
  • the message carries the radio bearer identifier initiated by the UE to the primary cell.
  • the user terminal 1 sends a radio bearer setup failure message to the secondary cell 3, and the user terminal 1 feeds back the reason for the radio bearer failure.
  • the secondary cell 3 may not receive the feedback message of the UE.
  • the secondary cell 3 sends a radio bearer request, it starts the timer, and the timer has not received a response when it times out.
  • the secondary cell 3 can also be considered as a failure to establish a wireless bearer.
  • the secondary cell 3 feeds back to the primary cell 2 that the user terminal 1 establishes a radio bearer and an E-RAB bearer response message, where the message carries the identifier of the failed radio bearer, the reason for the failure, and the identifier of the E-RAB bearer failure.
  • the reason for the failure If the timer is too high, the feedback timer expires. If a failure message is received, the reason for the failure is carried.
  • the establishment of the radio bearer and the E-RAB bearer may not fail at the same time, and the auxiliary cell 3 shall feed back to the main cell 2 according to the feedback result of the core network 4 and the user terminal 1.
  • the feedback mode is the same.
  • the present invention implements that the requested bearer of the user terminal is established on a suitable cell, when the user terminal and the core When the network has data interaction, the data is directly exchanged on the corresponding bearers of the cell, and the data exchange of multiple bearers established in each cell is required to be forwarded by the primary cell through the X2 interface.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device, or distributed among multiple computing devices.
  • they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into a plurality of integrated circuit modules, or , implementing multiple modules or steps in them as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

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Abstract

本发明提供了一种建立业务承载的方法,包括:用户终端发送一条以上第一承载建立请求;主小区根据辅助小区的负载数据,选择向一个以上所述辅助小区转发所述第一承载建立请求;所述辅助小区通过发送第二承载建立请求至核心网,获取承载数据;所述用户终端根据所述第一承载建立请求与所述辅助小区建立业务承载,获取所述承载数据。本发明还提供了一种建立业务承载的系统。通过本发明的方法及系统,可以解决现有技术的长期演进LTE系统中无法实现多个小区为一个用户终端服务的问题。

Description

建立业务承载的方法及系统 技术领域
本发明涉及通信领域, 具体而言, 尤其涉及一种建立业务承载的方法 及系统。 背景技术
演进的长期演进( LTE-A, Long Term Evolution-Advanced )系统中, 在 同一时间内, 只有一个小区为某个用户终端服务, 在这种情况下, 在小区 与用户终端之间建立业务承载时, 如何将不同的承载分配到不同的辅助小 区中是需要解决的问题。
针对上述现有技术的 LET-A系统中无法实现多个小区为一个用户终端 服务的问题, 目前没有有效的解决方案。 发明内容
本发明的主要目的在于提供一种建立业务承载的方法及系统, 以解决 现有技术的 LTE-A系统中无法实现多个小区为一个用户终端服务的问题。
为了实现上述目的, 根据本发明的一方面, 提供了一种建立业务承载 的方法。
根据本发明的建立业务承载的方法, 包括:
用户终端发送一条以上第一承载建立请求;
主小区根据辅助小区的负载数据, 选择向一个以上所述辅助小区转发 所述第一承载建立请求;
所述辅助小区通过发送第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据。
进一步地, 所述辅助小区通过发送第二承载建立请求至核心网, 获取 承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立 业务承载, 获取所述承载数据, 包括:
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区下发所述^载数据至所述用户终端。
进一步地, 所述辅助小区通过发送第二承载建立请求至核心网, 获取 承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立 业务承载, 获取所述承载数据, 包括:
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区下发所述^载数据至所述用户终端。
进一步地, 所述辅助小区通过发送第二承载建立请求至核心网, 获取 承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立 业务承载, 获取所述承载数据的步驟包括:
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区下发所述^载数据至所述用户终端。
进一步地, 所述辅助小区通过发送第二承载建立请求至核心网, 获取 承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立 业务承载, 获取所述承载数据, 包括:
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述用户终端发送第三确认消息至所述辅助小区;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区下发所述^载数据至所述用户终端。
进一步地, 所述辅助小区通过发送第二承载建立请求至核心网, 获取 承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立 业务承载, 获取所述承载数据, 包括:
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述用户终端发送第三确认消息至所述辅助小区; 所述辅助小区下发所述^载数据至所述用户终端。
进一步地, 所述辅助小区通过发送第二承载建立请求至核心网, 获取 承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立 业务承载, 获取所述承载数据, 包括:
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述用户终端发送第三确认消息至所述辅助小区;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区下发所述^载数据至所述用户终端。
进一步地, 在用户终端发送一条以上第一承载建立请求之前, 该方法 还包括:
所述主小区通过负载上报的方式, 实时获取所述辅助小区的所述负载 数据。
进一步地, 在所述辅助小区下发所述^载数据至所述用户终端后, 该 方法还包括:
所述辅助小区向所述主小区反馈第四确认消息; 其中, 所述第四确认 消息包括: 所述第一承载建立请求的标识符和所述第二承载建立请求的标 识符。
进一步地, 在所述辅助小区发送所述第二承载建立请求到所述核心网 之后, 该方法还包括:
判断所述第二承载建立请求是否有效, 当所述第二承载建立请求有效 时, 所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息, 当所述第二承载建立请求无效时, 所述核心网返回 第一失败消息。
为了实现上述目的, 根据本发明的另一个方面, 提供了一种建立业务 承载的系统。
根据本发明的建立业务承载的系统包括: 用户终端、 主小区、 辅助小 区、 以及核心网; 其中,
用户终端, 用于发送一条以上第一承载建立请求, 并根据所述第一承 载建立请求与所述辅助小区建立业务承载, 获取承载数据;
主小区, 用于根据辅助小区的负载数据, 选择向一个或多个所述辅助 小区转发所述第一承载建立请求;
辅助小区, 用于通过所述辅助小区发送第二承载建立请求至核心网, 获取承载数据。
通过本发明建立业务承载的方法及系统, 可以解决现有技术的 LTE-A 系统中无法实现多个小区为一个用户终端服务的问题, 进而达到了实现多 个小区为一个用户终端服务, 从而提高小区边缘的吞吐量、 或增加系统吞 吐量的效果。 附图说明
此处所说明的附图用来提供对本发明的进一步理解, 构成本发明的一 部分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发 明的不当限定。 在附图中:
图 1为根据本发明实施例的建立业务承载的系统的结构示意图; 图 2为根据本发明实施例的建立业务承载的方法的流程图;
图 3为根据本发明实施例一至六的建立业务承载的方法的工作流程图; 图 4为根据本发明实施例七的建立业务承载的方法的工作流程图。 具体实施方式
为了使本发明所要解决的技术问题、 技术方案及有益效果更加清楚、 明白, 以下结合附图和实施例, 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体实施例仅仅用以解释本发明, 并不用于限定本发明。
本发明提供了一种建立业务承载的方法及系统。
图 1为根据本发明实施例的建立业务承载的系统的结构示意图。如图 1 所示, 该建立业务^载的系统包括: 用户终端 1 , 主小区 2、 辅助小区 3、 以及核心网 4; 其中, 用户终端 1 , 用于发送一条以上第一承载建立请求; 主小区 2, 用于根据辅助小区 3的负载数据,选择向一个以上辅助小区 3转 发第一承载建立请求; 辅助小区 3 , 用于通过发送第二承载建立请求至核心 网, 以获取承载数据; 其中, 用户终端 1 根据第一承载建立请求与辅助小 区 3建立业务承载, 以获取承载数据。
本发明上述实施例通过采用多点协作传输及接收(CoMP, Coordinated Multi-point transmission/reception )技术, 进一步提高了 LTE系统对于边缘 用户吞吐量、 边缘用户的频率利用率、 以及系统的整体性能。 该实施例实 现主小区拥有 CoMP, 从而集中所有小区的负荷信息, 因此, 在建立业务承 载时, 可以根据承载所需要的资源、 CoMP中各小区的资源信息、 以及承载 的特性, 将承载分配在某一个小区中, 而不是每个小区都拥有这个承载, 而从核心网下发的关于某承载的数据, 可以直接发给接纳该承载的演进的 节点 B ( eNB, eNodeB ), 即小区节点。 避免 eNB进入到负荷过重的状态。 该实施例中的第一承载建立请求可以是无线承载建立请求, 第二承载建立 请求是 E-RAB承载建立请求。
在上述实施例中, 作为 LTE系统的后继者, LTE-A指定为其技术框架 中重要的元素, 实现在无线通讯过程中, 地理位置上分离的多个传输点协 同参与一个用户终端 UE传输和 /接收数据, 以提高边缘用户接收信号的质 量。 系统可以通过 CoMP的发送和接收技术来增加高速数据速率的覆盖, 从而提高小区边缘的吞吐量、 或增加系统吞吐量。
图 2为根据本发明实施例的建立业务承载的方法的流程图。 如图 2所 示, 并结合图 1 , 该方法包括如下步驟:
步驟 S202, 用户终端 1发送一条以上第一承载建立请求;
步驟 S204, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求;
步驟 S206, 辅助小区 3可以通过发送第二承载建立请求至核心网 4, 以获取承载数据, 同时, 用户终端 1 可以根据第一承载建立请求与辅助小 区 3建立业务承载, 以获取承载数据。
本发明上述实施例中,主小区拥有 CoMP,从而集中所有小区的负荷信 息, 因此, 在建立业务承载时, 可根据承载所需要的资源、 CoMP中各小区 的资源信息、 以及承载的特性, 将承载分配在某一个小区中, 而不是每个 小区都拥有这个承载, 而从核心网下发的关于某承载的数据, 可以直接发 给接纳该承载的 eNB, 即各个小区节点,避免 eNB进入到负荷过重的状态, 从而实现小区网络通信系统中可以通过 CoMP的发送和接收技术来增加高 速数据速率的覆盖, 进而提高小区边缘的吞吐量、 或增加系统吞吐量。
本发明上述实施例涉及无线通信系统是一种 LTE-A系统的 eNB , 即: 各个小区和用户终端 (UE ), 即演进中的终端, 基于 CoMP 的多个小区建 立混合承载的接纳方法。 在 LTE-A系统中, 采用 CoMP技术可以实现多个 小区为一个 UE服务。其中,本发明实施例中的第一承载建立请求可以是无 线承载建立请求, 第二承载建立请求是 E-RAB承载建立请求。
优选地, 在辅助小区下发承载数据至用户终端之后, 该方法还可以包 括: 辅助小区向主小区反馈第四确认消息, 第四确认消息包括: 第一承载 建立请求的标识符及第二承载建立请求的标识符。 优选地, 在用户终端发送一条以上第一承载建立请求之前, 该方法还 可以包括: 步驟 S201 , 主小区 2与辅助小区 3进行负载信息的交互过程, 主小区 2通过负载上 ·^艮的方式, 实时获取辅助小区 3的负载数据。
图 3为根据本发明实施例一至六的建立业务承载的方法的工作流程图。 当 UE建立一条业务承载时,主小区 2将该业务承载建立在合适的辅助小区 3上, 当 UE与核心网 4有数据交互时, 数据直接在小区相应的承载上进行 交互。
如图 3 所示, 由于互为相邻小区, 因此, 通过负载上报的方式, 主小 区 2已经获知辅助小区 3的辅助状况。 当用户终端 1需要建立一条业务承 载时, 主小区 2的工作处理流程包括如下几种实施例。
实施例一:
如图 3所示, 并结合图 1 , 该实施例一包括如下步驟:
步驟 S301 , 用户终端 1向主小区 2发起无线承载建立请求命令。
步驟 S302, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求。
该步驟中, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅 助小区 3发起承载建立请求。 该请求中携带用户终端 1的 ID信息, 第一承 载建立请求可以是无线承载建立请求。
步驟 S303 , 辅助小区 3收到主小区 2的第一承载建立请求后, 辅助小 区 3发送第二承载建立请求到核心网 4。
这里, 第二承载建立请求可以为 E-RAB承载建立请求。
步驟 S304, 核心网 4响应辅助小区 3的第二承载建立请求, 并返回承 载数据和第一确认消息。
该步驟中, 核心网 4响应辅助小区 3的第二承载建立请求可以是: 向 辅助服务小区 3发送响应 E-RAB承载建立请求, 同时返回的第一确认消息 可以为成功消息。
步驟 S305 , 辅助小区 3接受第一承载建立请求, 并返回第二确认消息 至用户终端 1。
该步驟中, 辅助小区 3主动发起与该用户终端 1 的无线承载建立请求 成功消息, 并且该消息中携带用户终端 1向主小区 2发起的无线承载标识 付。
步驟 S306, 用户终端 1发送第三确认消息至辅助小区 3 ,且辅助小区 3 可以下发承载数据至用户终端 1。
该步驟中, 所述第三确认消息用于确认户终端 1 已经成功与辅助服务 小区 3建立了无线承载。
步驟 S307, 辅助小区 3向主小区 2反馈第四确认消息。
这里, 所述第四确认消息包括: 第一承载建立请求的标识符及第二承 载建立请求的标识符。 该步驟实现的目的为: 辅助小区 3向主小区 2反馈 用户终端 1建立无线承载和 E-RAB承载成功建立消息。 所述第四确认消息 中还携带有无线承载的标识符和 E-RAB承载的标识符。
实施例二:
如图 3所示,由于本发明实施例中,辅助小区 3建立与核心网 4的 E-RAB 连接过程和辅助小区 3与用户终端 1建立无线承载可以是一个并行的过程, 因此, 本发明可以按照如下步驟实施本发明, 结合图 1 , 实施例二的具体步 驟如下:
步驟 S301 , 用户终端 1向主小区 2发起无线承载建立请求命令。
步驟 S302, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求。
该步驟中, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅 助小区 3发起承载建立请求。 该消息中携带用户终端 1的 ID信息, 第一承 载建立请求可以是无线承载建立请求。
步驟 S305 , 辅助小区 3接受第一承载建立请求, 并返回第二确认消息 至用户终端 1。
该步驟中, 辅助小区 3主动发起与该用户终端 1 的无线承载建立请求 成功消息, 并且该消息中携带用户终端 1向主小区 2发起的无线承载标识 付。
步驟 S306, 用户终端 1发送第三确认消息至辅助小区 3 ,且辅助小区 3 可以下发承载数据至用户终端 1。
该步驟中, 所述第三确认消息用于确认户终端 1 已经成功与辅助服务 小区 3建立了无线承载。
步驟 S303 , 辅助小区 3收到主小区 2的第一承载建立请求后, 辅助小 区 3发送第二承载建立请求到核心网 4。
这里, 第二承载建立请求可以为 E-RAB承载建立请求。
步驟 S304, 核心网 4响应辅助小区 3的第二承载建立请求, 并返回承 载数据和第一确认消息。
该步驟中, 核心网 4响应辅助小区 3的第二承载建立请求可以是:向辅 助服务小区 3发送响应 E-RAB承载建立请求, 同时返回的第一确认消息可 以为成功消息。
步驟 S307, 辅助小区 3向主小区 2反馈第四确认消息。
这里, 所述第四确认消息包括: 第一承载建立请求的标识符及第二承 载建立请求的标识符。 该步驟实现的目的为: 辅助小区 3向主小区 2反馈 用户终端 1建立无线承载和 E-RAB承载成功建立消息。 所述第四确认消息 中还携带有无线承载的标识符和 E-RAB承载的标识符。
实施例三:
如图 3所示,由于本发明实施例中,辅助小区 3建立与核心网 4的 E-RAB 连接过程和辅助小区 3与用户终端 1建立无线承载可以是一个并行的过程, 因此, 本发明可以按照如下步驟实施本发明, 结合图 1 , 实施例三的具体步 驟如下:
步驟 S301 , 用户终端 1向主小区 2发起无线承载建立请求命令。
步驟 S302, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求。
该步驟中, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅 助小区 3发起承载建立请求。 该消息中携带用户终端 1的 ID信息, 第一承 载建立请求可以是无线承载建立请求。
步驟 S305 , 辅助小区 3接受第一承载建立请求, 并返回第二确认消息 至用户终端 1。
该步驟中, 辅助小区 3主动发起与该用户终端 1 的无线承载建立请求 成功消息, 并且该消息中携带用户终端 1向主小区 2发起的第一无线承载 标识符。
步驟 S303 , 辅助小区 3收到主小区 2的第一承载建立请求后, 辅助小 区 3发送第二承载建立请求到核心网 4。
这里, 第二承载建立请求可以为 E-RAB承载建立请求。
步驟 S304, 核心网 4响应辅助小区 3的第二承载建立请求, 并返回承 载数据和第一确认消息。
该步驟中, 核心网 4响应辅助小区 3的第二承载建立请求可以是: 向 辅助服务小区 3发送响应 E-RAB承载建立请求, 同时返回的第一确认消息 可以为成功消息。
步驟 S306, 用户终端 1发送第三确认消息至辅助小区 3 ,且辅助小区 3 可以下发承载数据至用户终端 1。
该步驟中实现, 所述第三确认消息用于确认户终端 1 已经成功与辅助 服务小区 3建立了无线承载。
步驟 S307, 辅助小区 3向主小区 2反馈第四确认消息。
这里, 所述第四确认消息中包括第一承载建立请求的标识符及第二承 载建立请求的标识符。 该步驟实现的目的为: 辅助小区 3向主小区 2反馈 用户终端 1建立无线承载和 E-RAB承载成功建立消息。 所述第四确认消息 中还携带有无线承载的标识符和 E-RAB承载的标识符。
实施例四:
如图 3所示,由于本发明实施例中,辅助小区 3建立与核心网 4的 E-RAB 连接过程和辅助小区 3与用户终端 1建立无线承载可以是一个并行的过程, 因此, 本发明可以按照如下步驟实施本发明, 结合图 1 , 实施例四的具体步 驟如下:
步驟 S301 , 用户终端 1向主小区 2发起无线承载建立请求命令。
步驟 S302, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求。
该步驟中, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅 助小区 3发起承载建立请求。 该请求中携带 UE的 ID信息, 第一承载建立 请求可以是无线承载建立请求。
步驟 S305 , 辅助小区 3接受第一承载建立请求, 并返回第二确认消息 至用户终端 1。
该步驟中, 辅助小区 3主动发起与该用户终端 1 的无线承载建立请求 成功消息, 并且该消息中携带用户终端 1向主小区 2发起的无线承载标识 付。
步驟 S303 , 辅助小区 3收到主小区 2的第一承载建立请求后, 辅助小 区 3发送第二承载建立请求到核心网 4。
这里, 第二承载建立请求可以为 E-RAB承载建立请求。 步驟 S306, 用户终端 1发送第三确认消息至辅助小区 3 ,且辅助小区 3 可以下发承载数据至用户终端 1。
该步驟中, 所述第三确认消息用于确认户终端 1 已经成功与辅助服务 小区 3建立了无线承载。
步驟 S304, 核心网 4响应辅助小区 3的第二承载建立请求, 并返回承 载数据和第一确认消息。
该步驟中, 核心网 4响应辅助小区 3的第二承载建立请求可以是: 向 辅助服务小区 3发送响应 E-RAB承载建立请求, 同时返回的第一确认消息 可以为成功消息。
步驟 S307, 辅助小区 3向主小区 2反馈第四确认消息。
这里, 所述第四确认消息包括: 第一承载建立请求的标识符及第二承 载建立请求的标识符。 该步驟实现的目的为: 辅助小区 3向主小区 2反馈 用户终端 1建立无线承载和 E-RAB承载成功建立消息。 所述第四确认消息 中还携带有无线承载的标识符和 E-RAB承载的标识符。
实施例五:
如图 3所示,由于本发明实施例中,辅助小区 3建立与核心网 4的 E-RAB 连接过程和辅助小区 3与用户终端 1建立无线承载可以是一个并行的过程, 因此, 本发明可以按照如下步驟实施本发明, 结合图 1 , 实施例五的具体步 驟如下:
步驟 S301 , 用户终端 1向主小区 2发起无线承载建立请求命令。
步驟 S302, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求。
该步驟中, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅 助小区 3发起承载建立请求。 该请求中携带用户终端 1的 ID信息, 第一承 载建立请求可以是无线承载建立请求。 步驟 S303 , 辅助小区 3收到主小区 2的第一承载建立请求后, 辅助小 区 3发送第二承载建立请求到核心网 4。
这里, 第二承载建立请求可以为 E-RAB承载建立请求。
步驟 S305 , 辅助小区 3接受第一承载建立请求, 并返回第二确认消息 至用户终端 1。
该步驟中, 辅助小区 3主动发起与该用户终端 1的无线承载建立请求 成功消息, 并且该消息中携带用户终端 1向主小区 2发起的无线承载标识 付。
步驟 S304, 核心网 4响应辅助小区 3的第二承载建立请求, 并返回承 载数据和第一确认消息。
该步驟中, 核心网 4响应辅助小区 3的第二承载建立请求可以是: 向 辅助服务小区 3发送响应 E-RAB承载建立请求, 同时返回的第一确认消息 可以为成功消息。
步驟 S306, 用户终端 1发送第三确认消息至辅助小区 3 ,且辅助小区 3 可以下发承载数据至用户终端 1。
该步驟中实现, 所述第三确认消息用于确认户终端 1 已经成功与辅助 服务小区 3建立了无线承载。
步驟 S307, 辅助小区 3向主小区 2反馈第四确认消息。
这里, 所述第四确认消息包括: 第一承载建立请求的标识符及第二承 载建立请求的标识符。 该步驟实现的目的为: 辅助小区 3向主小区 2反馈 用户终端 1建立无线承载和 E-RAB承载成功建立消息。 所述第四确认消息 中还携带有无线承载的标识符和 E-RAB承载的标识符。
实施例六:
如图 3所示,由于本发明实施例中,辅助小区 3建立与核心网 4的 E-RAB 连接过程和辅助小区 3与用户终端 1建立无线承载可以是一个并行的过程, 因此, 本发明可以按照如下步驟实施本发明, 结合图 1 , 实施例六的具体步 驟如下:
步驟 S301 , 用户终端 1向主小区 2发起无线承载建立请求命令。
步驟 S302, 主小区 2可以根据辅助小区 3的负载数据, 选择向一个以 上辅助小区 3转发第一承载建立请求。
该步驟中, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅 助小区 3发起承载建立请求。 该请求中携带用户终端 1的 ID信息, 第一承 载建立请求可以是无线承载建立请求。
步驟 S303 , 辅助小区 3收到主小区 2的第一承载建立请求后, 辅助小 区 3发送第二承载建立请求到核心网 4。
这里, 第二承载建立请求可以为 E-RAB承载建立请求。
步驟 S305 , 辅助小区 3接受第一承载建立请求, 并返回第二确认消息 至用户终端 1。
该步驟中, 辅助小区 3主动发起与该用户终端 1 的无线承载建立请求 成功消息, 并且该消息中携带用户终端 1向主小区 2发起的无线承载标识 付。
步驟 S306, 用户终端 1发送第三确认消息至辅助小区 3 ,且辅助小区 3 可以下发承载数据至用户终端 1。
该步驟中, 所述第三确认消息用于确认户终端 1UE已经成功与辅助服 务小区 3建立了无线承载。
步驟 S304, 核心网 4响应辅助小区 3的第二承载建立请求, 并返回承 载数据和第一确认消息。
该步驟中, 核心网 4响应辅助小区 3的第二承载建立请求可以是: 向 辅助服务小区 3发送响应 E-RAB承载建立请求, 同时返回的第一确认消息 可以为成功消息。 步驟 S307, 辅助小区 3向主小区 2反馈第四确认消息。
这里, 所述第四确认消息包括: 第一承载建立请求的标识符及第二承 载建立请求的标识符。 该步驟实现的目的为: 辅助小区 3向主小区 2反馈 用户终端 1建立无线承载和 E-RAB承载成功建立消息。 所述第四确认消息 中还携带有无线承载的标识符和 E-RAB承载的标识符。
图 4是根据本发明实施例七的建立业务承载的方法的工作流程图。 如 图 4所示, 本发明用户终端 1 同时建立多条业务承载时, 主小区 2将每个 业务承载建立在合适的辅助小区 3上, 当用户终端 1与核心网 4有数据交 互时, 任意一个业务承载数据将直接在小区相应的承载上进行交互。
如图 4 中所示, 由于互为相邻小区, 因此, 通过负载上报的方式, 主 小区已经获知辅助小区的辅助状况, 且本发明实施例七中的每个辅助小区 建立的 E-RAB承载和无线承载都是并行过程, 如果当某一个辅助小区的承 载建立有了结果, 就将结果反馈给主小区。
如图 4所示, 并结合图 1 , 当 UE需要建立多条业务承载时, 本发明实 施例七的实施步驟如下:
步驟 S401 , 用户终端 1向主小区 2发起无线承载建立请求命令。
这里, 该请求中携带需要建立承载的列表。
步驟 S402, 主小区 2通过已有的辅助小区 3的负载状况, 选择多个合 适的辅助小区 3发起承载建立请求。
步驟 S403 , 每个辅助小区 3收到主小区 2的承载建立请求后, 向核心 网 4发起 E-RAB承载建立请求。
步驟 S404,核心网 4响应 E-RAB承载建立成功消息后,每个辅助小区 3通过 X2接口向主小区 2响应承载建立成功消息。
步驟 S405 , 每个辅助小区 3都主动发起与该用户终端 1的无线承载建 立请求消息, 该消息中携带用户终端 1向主小区发起的无线承载标识符。 步驟 S406, 用户终端 1向每个辅助小区 3发送无线承载建立成功确认 消息;
这里, 通过该确认消息来确认终端已经成功与辅助服务小区建立了无 线承载。
步驟 S407, 每个辅助小区 3向主小区 2反馈用户终端 1建立无线承载 成功消息。
这里, 该消息中携带那些辅助小区 3的承载建立成功列表。
同理, 由于本发明实施例中, 辅助小区 3与核心网 4建立 E-RAB连接 的过程和辅助小区 3与用户终端 1建立无线承载的过程可以是一个并行的 过程, 因此, 本发明在用户终端 1 同时建立多条业务^载时, 也与建立一 条业务 载时一样具有如实施例二至六一样的实施方式。
如图 2至 4所示的实施例中, 优选地, 在辅助小区发送第二承载建立 请求到核心网之后, 方法还可以包括: 判断第二承载建立请求是否有效, 其中, 当第二承载建立请求有效时, 核心网响应辅助小区的第二承载建立 请求, 并返回承载数据和第一确认消息, 否则, 核心网返回第一失败消息。
本发明综上所述的实施例中, 优选地, 在辅助小区接受第一承载建立 请求, 并返回第二确认消息至用户终端之后, 方法还可以包括: 判断第一 承载建立请求是否有效, 当第一承载建立请求有效时, 用户终端发送第三 确认消息至辅助小区, 且辅助小区下发承载数据至用户终端, 否则, 用户 终端发送第二失败消息至辅助小区。
如图 2-4所示的实施例一至七中, 当用户终端 1建立一条业务 载时, 如果主小区 2将该承载建立在某个辅助小区 3失败的过程中, 那么该无线 ^^载建立失败。 实施例一至七还可以包括如下实施步驟:
首先, 用户终端 1向主小区 2发起无线承载建立请求命令。
其次, 主小区 2通过已有的辅助小区 3的负载状况, 选择一个辅助小 区 3发起承载建立请求。 该消息中携带用户终端 1的 ID信息。
再次, 辅助小区 3收到主小区 2的承载建立请求后, 向核心网 4发起 E-RAB 7|载建立请求。
然后 , 此时 , 核心网 4向辅助小区 3发送响应 E-RAB承载建立失败消 息。 该失败消息中携带失败的原因。
同时, 辅助小区 3主动发起与该用户终端 1 的无线承载建立请求成功 消息。 该消息中携带 UE向主小区发起的无线承载标识符。
此时, 用户终端 1收到消息后, 向该辅助小区 3发送无线承载建立失 败消息, 且用户终端 1 反馈建立无线承载失败的原因。 此时, 辅助小区 3 有可能收不到 UE的反馈消息。当辅助小区 3下发建立无线承载请求时就启 动定时器, 当定时器超时还未收到响应。 辅助小区 3也可以认为是建立无 线承载失败。
最后, 辅助小区 3向主小区 2反馈用户终端 1建立无线^载和 E-RAB 承载响应消息, 该消息中携带失败建立无线承载的标识符、 失败原因、 以 及 E-RAB承载失败的标识符、 失败原因。 如果定时器超, 则反馈定时器超 时。 如果收到失败消息, 就携带该失败的原因。
本发明上述实施例中, 无线承载与 E-RAB承载的建立有可能不是同时 失败, 辅助小区 3要根据核心网 4和用户终端 1的反馈结果来进行反馈给 主小区 2。 当用户终端 1发起的多条无线承载时, 反馈方式相同。
需要说明的是: 本发明实施例在附图的流程图示出的步驟可以在诸如 一组计算机可执行指令的计算机系统中执行, 并且, 虽然在流程图中示出 了逻辑顺序, 但是在某些情况下, 可以以不同于此处的顺序执行所示出或 描述的步驟。
从以上描述的实施例中, 可以看出, 本发明实现了如下技术效果: 本 发明实现将用户终端的请求的承载建立在合适的小区上, 当用户终端与核 心网有数据交互时, 数据直接在小区相应的承载上进行交互, 避免了建立 在各个小区的多个承载的数据交互需要主小区通过 X2接口进行转发。
显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步驟 可以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者, 分布在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执 行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来 执行, 或者, 将它们分别制作成多个集成电路模块, 或者, 将它们中的多 个模块或步驟制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。
上述说明示出并描述了本发明的一个优选实施例, 但如前所述, 应当 理解本发明并非局限于本文所披露的形式, 不应看作是对其它实施例的排 除, 而可用于各种其它组合、 修改和环境, 并能够在本文所述发明构想范 围内, 通过上述教导或相关领域的技术或知识进行改动。 而本领域人员所 进行的改动和变化不脱离本发明的精神和范围, 则都应在本发明所附权利 要求的保护范围内。

Claims

权利要求书
1、 一种建立业务承载的方法, 其特征在于, 该方法包括:
用户终端发送一条以上第一承载建立请求;
主小区根据辅助小区的负载数据, 选择向一个以上所述辅助小区转发 所述第一承载建立请求;
所述辅助小区通过发送第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据。
2、 根据权利要求 1所述的方法, 其特征在于, 所述辅助小区通过发送 第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一 承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据, 包括: 所述辅助小区发送所述第二承载建立请求到所述核心网;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区下发所述^载数据至所述用户终端。
3、 根据权利要求 1所述的方法, 其特征在于, 所述辅助小区通过发送 第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一 承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据, 包括: 所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区发送所述第二承载建立请求到所述核心网; 所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区下发所述^载数据至所述用户终端。
4、 根据权利要求 1所述的方法, 其特征在于, 所述辅助小区通过发送 第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一 承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据, 包括: 所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区下发所述^载数据至所述用户终端。
5、 根据权利要求 1所述的方法, 其特征在于, 所述辅助小区通过发送 第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一 承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据, 包括: 所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述辅助小区发送所述第二承载建立请求到所述核心网;
所述用户终端发送第三确认消息至所述辅助小区;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区下发所述^载数据至所述用户终端。
6、 根据权利要求 1所述的方法, 其特征在于, 所述辅助小区通过发送 第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一 承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据, 包括: 所述辅助小区发送所述第二承载建立请求到所述核心网;
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述用户终端发送第三确认消息至所述辅助小区;
所述辅助小区下发所述^载数据至所述用户终端。
7、 根据权利要求 1所述的方法, 其特征在于, 所述辅助小区通过发送 第二承载建立请求至核心网, 获取承载数据; 所述用户终端根据所述第一 承载建立请求与所述辅助小区建立业务承载, 获取所述承载数据, 包括: 所述辅助小区发送所述第二承载建立请求到所述核心网;
所述辅助小区接收所述第一承载建立请求, 并返回第二确认消息至所 述用户终端;
所述用户终端发送第三确认消息至所述辅助小区;
所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息;
所述辅助小区下发所述^载数据至所述用户终端。
8、 根据权利要求 1至 7任一项所述的方法, 其特征在于, 在用户终端 发送一条以上第一承载建立请求之前, 该方法还包括:
所述主小区通过负载上报的方式, 实时获取所述辅助小区的所述负载 数据。
9、 根据权利要求 8所述的方法, 其特征在于, 在所述辅助小区下发所 述承载数据至所述用户终端后, 该方法还包括:
所述辅助小区向所述主小区反馈第四确认消息; 其中, 所述第四确认消息包括: 所述第一承载建立请求的标识符和所述第二 载建立请求的标识符。
10、 根据权利要求 1至 7任一项所述的方法, 其特征在于, 在所述辅 助小区发送所述第二承载建立请求到所述核心网之后, 该方法还包括: 判断所述第二承载建立请求是否有效, 当所述第二承载建立请求有效 时, 所述核心网响应所述辅助小区的第二承载建立请求, 并返回所述承载 数据和第一确认消息, 当所述第二承载建立请求无效时, 所述核心网返回 第一失败消息。
11、 一种建立业务承载的系统, 其特征在于, 该系统包括: 用户终端、 主小区、 辅助小区、 以及核心网; 其中,
用户终端, 用于发送一条以上第一承载建立请求, 并根据所述第一承 载建立请求与所述辅助小区建立业务承载, 获取承载数据;
主小区, 用于根据辅助小区的负载数据, 选择向一个以上所述辅助小 区转发所述第一承载建立请求;
辅助小区, 用于通过发送第二承载建立请求至核心网, 获取所述承载 数据。
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