WO2012009989A1 - 多基站协作方法、系统及移动终端、主服务基站 - Google Patents

多基站协作方法、系统及移动终端、主服务基站 Download PDF

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Publication number
WO2012009989A1
WO2012009989A1 PCT/CN2011/072920 CN2011072920W WO2012009989A1 WO 2012009989 A1 WO2012009989 A1 WO 2012009989A1 CN 2011072920 W CN2011072920 W CN 2011072920W WO 2012009989 A1 WO2012009989 A1 WO 2012009989A1
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WO
WIPO (PCT)
Prior art keywords
base station
auxiliary
serving base
link connection
mobile terminal
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Application number
PCT/CN2011/072920
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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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Filing date
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 WO2012009989A1 publication Critical patent/WO2012009989A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/005—Interference mitigation or co-ordination of intercell interference
    • H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception

Definitions

  • Multi-base station cooperation method system and mobile terminal, main service base station
  • the present invention relates to the field of mobile communications, and in particular to a multi-base station cooperation method, system, mobile terminal, and primary serving base station. Background technique
  • FIG. 1 is a schematic diagram of an architecture of an LTE mobile communication system.
  • the LTE mobile communication system mainly includes: a core network (Core Network, CN) and an access network (Evolved Universal Terrestrial Radio Access Network, E_UTRAN), and the core network mainly includes a mobility management entity. (Mobile Management Entity, MME) and the Servicing Gateway (S-GW), the access network is composed of an Evolved Node B (eNodeb), and the S1 interface is adopted between the core network and the access network. Interconnection and intercommunication between different eNodebs in the access network through the X2 interface.
  • MME Mobile Management Entity
  • S-GW Serviced Gateway
  • the biggest change introduced by the multipoint coordinated transmission and reception technology is that the user terminal will simultaneously perform data receiving and transmitting operations with a plurality of base stations adjacent to each other in the spatial position. In this case, it is very important to coordinate the cooperative work between multiple separated and independent base stations, but no specific workflow has been proposed in the prior art. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a multi-base station cooperation method and system, a mobile terminal, and a primary serving base station, which can implement coordinated work between multiple base stations.
  • a multi-base station collaboration method including:
  • the mobile terminal uses the currently camping base station as a primary serving base station, and establishes a primary radio link connection with the primary serving base station;
  • the mobile terminal measures signal quality of all neighboring base stations, and uses a neighboring base station whose signal quality exceeds a preset value as a secondary serving base station;
  • the mobile terminal establishes a secondary radio link connection with the secondary serving base station.
  • the establishing, by the mobile terminal, the auxiliary wireless link connection with the auxiliary serving base station includes:
  • the mobile terminal sends a setup request message for the auxiliary radio link connection to the auxiliary serving base station via the primary serving base station, where the setup request message of the auxiliary radio link carries the auxiliary service base station identifier, the terminal identifier, and the request Service quality parameters of service data and configuration parameters of traffic channels;
  • the mobile terminal after establishing the auxiliary wireless link connection with the auxiliary serving base station, further includes:
  • the mobile terminal processes a secondary wireless link connection established with the secondary serving base station;
  • the mobile terminal processing the secondary wireless link connection established with the secondary serving base station includes: Transmitting, by the mobile service terminal, a processing request message for assisting a radio link connection to the auxiliary serving base station by the primary serving base station;
  • the mobile terminal receives a processing confirmation message of the secondary radio link connection returned by the primary serving base station.
  • the embodiment of the invention further provides a multi-base station cooperation method, including:
  • the method further includes:
  • the primary serving base station Receiving, by the primary serving base station, a processing request message of the auxiliary wireless link connection sent by the mobile terminal, and forwarding the processing request message of the auxiliary wireless link connection to the auxiliary serving base station; the primary serving base station receiving the assistance Processing a confirmation message of the secondary radio link connection returned by the serving base station, and forwarding a processing acknowledgement message of the auxiliary radio link connection to the mobile terminal, so that the mobile terminal processes the auxiliary wireless with the auxiliary serving base station Link connection.
  • the processing request message of the auxiliary radio link connection includes a modification request message of the auxiliary radio link connection
  • the main serving base station receives an establishment confirmation message of the auxiliary radio link connection returned by the auxiliary serving base station, and After forwarding the setup confirmation message of the auxiliary wireless link connection to the mobile terminal, the method further includes:
  • the primary serving base station Receiving, by the primary serving base station, a modification request message of the auxiliary wireless link connection sent by the mobile terminal, and forwarding the modification request message of the auxiliary wireless link connection to the auxiliary serving base station; the primary serving base station receiving the assistance Repair of the auxiliary wireless link connection returned by the serving base station And confirming the confirmation message, and forwarding the modification confirmation message of the auxiliary wireless link connection to the mobile terminal, so that the mobile terminal modifies the auxiliary wireless link connection with the auxiliary serving base station.
  • the processing request message of the auxiliary radio link connection includes a release request message of the auxiliary radio link connection, and the main serving base station receives an establishment confirmation message of the auxiliary radio link connection returned by the auxiliary serving base station, and After forwarding the setup confirmation message of the auxiliary wireless link connection to the mobile terminal, the method further includes:
  • the primary serving base station Receiving, by the primary serving base station, a release request message of the auxiliary wireless link connection sent by the mobile terminal, and forwarding the release request message of the auxiliary wireless link connection to the auxiliary serving base station; the primary serving base station receiving the auxiliary And a release confirmation message of the auxiliary wireless link connection returned by the serving base station, and forwarding the release confirmation message of the auxiliary wireless link connection to the mobile terminal, so that the mobile terminal releases the auxiliary wireless with the auxiliary serving base station Link connection.
  • the processing request message of the auxiliary wireless link connection includes a reconfiguration request message of the auxiliary radio link connection, and the main serving base station receives a release confirmation message of the auxiliary radio link connection returned by the auxiliary serving base station, and After forwarding the release confirmation message of the auxiliary wireless link connection to the mobile terminal, the method further includes:
  • the primary serving base station Receiving, by the primary serving base station, a reestablishment request message of the auxiliary radio link connection sent by the mobile terminal, and forwarding the reconfiguration request message of the auxiliary radio link connection to the auxiliary serving base station; the primary serving base station receiving the auxiliary Reconfirming a confirmation message of the secondary radio link connected by the serving base station, and forwarding the re-establishment confirmation message of the auxiliary radio link connection to the mobile terminal, so that the mobile terminal re-establishes the auxiliary wireless with the auxiliary serving base station Link connection.
  • the processing request message of the auxiliary radio link connection includes a modification request message of the auxiliary radio link connection
  • the main serving base station receives an establishment confirmation message of the auxiliary radio link connection returned by the auxiliary serving base station, and After forwarding the setup confirmation message of the auxiliary wireless link connection to the mobile terminal, the method further includes:
  • the modification request message of the auxiliary wireless link connection is forwarded to the auxiliary service base station, where the modification request message of the auxiliary wireless link carries the auxiliary service base station identifier, the terminal identifier, and the configuration parameter of the control channel.
  • the embodiment of the invention further provides a mobile terminal, including:
  • a selection module configured to use the currently camping base station as a primary serving base station
  • a measurement module configured to measure signal quality of all neighboring base stations
  • the selecting module is further configured to use, as an auxiliary serving base station, a neighboring base station whose signal quality exceeds a preset value;
  • the setup module is further configured to establish a secondary wireless link connection with the secondary serving base station.
  • the establishing module includes:
  • a sending submodule configured to send, by the primary serving base station, an establishment request message of the auxiliary wireless link connection to the auxiliary serving base station, where the establishment request message of the auxiliary wireless link carries the auxiliary service base station identifier and the terminal identifier And requesting the service quality parameter of the service data and the configuration parameter of the service channel;
  • a receiving submodule configured to receive a setup confirmation message of the auxiliary radio link connection returned by the primary serving base station, where the auxiliary radio link connection establishment confirmation message is that the auxiliary serving base station receives the auxiliary radio link A message sent to the primary serving base station after the connection setup request message.
  • the establishing module is further configured to process an auxiliary wireless link connection established with the auxiliary serving base station;
  • the sending submodule is further configured to send, by the primary serving base station, a processing request message for assisting a wireless link connection to the secondary serving base station;
  • the receiving submodule is further configured to receive a processing acknowledgement message of the secondary radio link connection returned by the primary serving base station.
  • An embodiment of the present invention further provides a primary serving base station, including:
  • a receiving module configured to receive an establishment request message of the auxiliary wireless link connection sent by the mobile terminal
  • a sending module configured to forward the setup request message of the auxiliary radio link connection to the auxiliary serving base station
  • the receiving module is further configured to receive a setup confirmation message of the auxiliary radio link connection returned by the auxiliary serving base station;
  • the sending module is further configured to forward the establishment confirmation message of the auxiliary radio link connection to the mobile terminal, so that the mobile terminal establishes an auxiliary wireless link connection with the auxiliary serving base station.
  • the receiving module is further configured to receive a processing request message of the auxiliary wireless link connection sent by the mobile terminal;
  • the sending module is further configured to forward the processing request message of the auxiliary radio link connection to the auxiliary serving base station;
  • the receiving module is further configured to receive a processing confirmation message of the auxiliary wireless link connection returned by the auxiliary serving base station;
  • the transmitting module is further configured to forward the processing acknowledgement message of the secondary radio link connection to the mobile terminal, so that the mobile terminal processes the auxiliary wireless link with the auxiliary serving base station.
  • the embodiment of the invention further provides a multi-base station cooperation system, including:
  • a mobile terminal configured to use the current camping base station as a primary serving base station, and establish the same with the main service
  • the primary radio link of the base station is connected, and the signal quality of all neighboring base stations is measured, and the neighboring base station whose signal quality exceeds the preset value is used as the auxiliary serving base station;
  • the primary serving base station is configured to establish a primary radio link connection with the mobile terminal, and forward the received setup request message of the secondary radio link connection sent by the mobile terminal to the auxiliary serving base station, and then receive the And establishing, by the auxiliary serving base station, a setup confirmation message of the auxiliary radio link connection to the mobile terminal, so that the mobile terminal establishes a connection with the auxiliary radio base station of the auxiliary serving base station;
  • auxiliary serving base station is configured to receive an establishment request message of the auxiliary wireless link connection sent by the primary serving base station, and return an establishment confirmation message of the auxiliary wireless link connection to the primary serving base station.
  • the primary serving base station is further configured to forward the received processing request message of the secondary wireless link connection sent by the mobile terminal to the secondary serving base station, and then receive the secondary wireless returned by the secondary serving base station.
  • a link acknowledgement acknowledgement message is forwarded to the mobile terminal to cause the mobile terminal to handle a secondary radio link connection with the secondary serving base station.
  • the mobile terminal increases the auxiliary wireless link connection mode, enables multiple base stations to simultaneously serve the mobile terminal, improves the utilization rate of the mobile terminal for the air interface radio resource, and the mobile terminal can use more system radio resources to increase the mobility. End user experience. DRAWINGS
  • FIG. 1A is a schematic flowchart of a multi-base station cooperation method according to an embodiment of the present invention
  • FIG. 1B is a schematic flowchart of a multi-base station cooperation method according to another embodiment of the present invention
  • FIG. 2A is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2B is a schematic structural diagram of a mobile terminal of a primary serving base station according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a multi-base station cooperation system according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a mobile terminal successfully establishing an auxiliary wireless with an auxiliary serving base station according to an embodiment of the present invention. Schematic diagram of the link connection process;
  • FIG. 5 is a schematic flowchart of a mobile terminal not successfully establishing an auxiliary wireless link connection with a secondary serving base station according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a mobile terminal successfully modifying a secondary wireless link connection with a secondary serving base station according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a mobile terminal not successfully modifying an auxiliary wireless link connection with a secondary serving base station according to an embodiment of the present invention
  • FIG. 8 is a schematic flowchart of a mobile terminal releasing an auxiliary wireless link connection with a secondary serving base station according to an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method for successfully reestablishing a secondary wireless link of a mobile terminal with a secondary serving base station according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of a mobile terminal not successfully reestablishing an auxiliary wireless link connection with a secondary serving base station according to an embodiment of the present invention
  • FIG. 11 is a schematic flowchart of a mobile terminal converting an auxiliary wireless link connection into a primary wireless link connection according to an embodiment of the present invention. detailed description
  • Embodiments of the present invention provide a multi-base station cooperation method, system, and mobile terminal, which can implement coordinated work between multiple base stations.
  • FIG. 1A is a schematic flowchart of a multi-base station cooperation method according to an embodiment of the present invention. As shown in FIG. 1A, the method includes:
  • Step 101A The mobile terminal uses the currently camped base station as a primary serving base station, and establishes a primary wireless link connection with the primary serving base station;
  • Step 102A The mobile terminal measures signal quality of all neighboring base stations, and the signal quality is exceeded.
  • a neighboring base station that exceeds a preset value serves as a secondary serving base station;
  • Step 103A The mobile terminal establishes a secondary radio link connection with the secondary serving base station.
  • the mobile terminal may specifically measure the reference signal receiving power of all neighboring base stations, and use the neighboring base station whose reference signal receiving power exceeds a preset value as the auxiliary serving base station.
  • the establishing, by the mobile terminal, the auxiliary wireless link connection with the auxiliary serving base station includes: the mobile terminal transmitting, by the primary serving base station, the establishment request message of the auxiliary wireless link connection to the auxiliary serving base station, where the setup request message of the auxiliary wireless link connection is carried A secondary service base station identifier, a terminal identifier, a quality of service parameter requesting service data, and a configuration parameter of the traffic channel; the mobile terminal receives a setup confirmation message of the secondary wireless link connection returned by the primary serving base station, and the establishment confirmation message of the secondary wireless link connection is A message sent by the secondary serving base station to the primary serving base station after receiving the setup request message for the secondary wireless link connection.
  • the method further includes: the mobile terminal processing the auxiliary wireless link connection established with the auxiliary serving base station;
  • the mobile terminal processing the auxiliary wireless link connection established with the auxiliary service base station includes: the mobile terminal transmitting, by the primary serving base station, a processing request message for assisting the wireless link connection to the secondary serving base station;
  • the mobile terminal receives a processing acknowledgement message for the secondary radio link connection returned by the primary serving base station. Thereafter, the mobile terminal processes the secondary wireless link connection.
  • the processing of the secondary radio link by the mobile terminal may include modification, release, reconstruction, and conversion.
  • the mobile terminal increases the auxiliary wireless link connection mode, enables multiple base stations to simultaneously serve the mobile terminal, and improves the utilization ratio of the mobile terminal to the air interface radio resource.
  • Mobile terminals are able to use more system radio resources, increasing the experience of mobile terminal users.
  • FIG. 1B is a schematic flowchart of a multi-base station cooperation method according to another embodiment of the present invention.
  • the method includes: Step 101B: The primary serving base station receives the establishment request message of the secondary wireless link connection sent by the mobile terminal, and forwards the establishment request message of the auxiliary wireless link connection to the auxiliary serving base station; the setup request message of the auxiliary wireless link connection carries Auxiliary service base station identity, terminal identity, quality of service parameters for requesting service data, and configuration parameters of the traffic channel;
  • Step 102B The primary serving base station receives a setup confirmation message of the secondary radio link connection returned by the secondary serving base station, and forwards the setup confirmation message of the secondary wireless link connection to the mobile terminal, so that the mobile terminal establishes auxiliary wireless with the secondary serving base station. Link connection.
  • the primary serving base station After the primary serving base station forwards the setup confirmation message of the secondary radio link to the mobile terminal, the primary serving base station receives the processing request message of the auxiliary wireless link connection sent by the mobile terminal, and connects the auxiliary wireless link. Processing the request message to be forwarded to the auxiliary service base station;
  • the primary serving base station receives the processing acknowledgement message of the secondary radio link connection returned by the secondary serving base station, and forwards the processing acknowledgement message of the secondary wireless link connection to the mobile terminal, so that the mobile terminal processes the secondary wireless link with the secondary serving base station. Road connection.
  • the processing request message of the auxiliary wireless link connection includes a modification request message for the auxiliary wireless link connection, a release request message for the auxiliary wireless link connection, and a reconstruction request message for the auxiliary wireless link connection.
  • the primary serving base station receives the establishment confirmation message of the secondary wireless link connection returned by the auxiliary serving base station, and establishes the establishment of the auxiliary wireless link connection.
  • the confirmation message is forwarded to the mobile terminal, it also includes:
  • the primary serving base station receives the modification request message of the auxiliary wireless link connection sent by the mobile terminal, and forwards the modification request message of the auxiliary wireless link connection to the auxiliary serving base station;
  • the primary serving base station receives the modification confirmation message of the secondary radio link connection returned by the secondary serving base station, and forwards the modification confirmation message of the secondary wireless link connection to the mobile terminal, so that the mobile terminal modifies the auxiliary wireless link with the secondary serving base station. Road connection.
  • the processing request message of the auxiliary wireless link connection is a release request message of the auxiliary wireless link connection
  • the primary serving base station receives the establishment confirmation message of the secondary wireless link connection returned by the secondary serving base station, and establishes the establishment of the secondary wireless link connection. After the confirmation message is forwarded to the mobile terminal, it also includes:
  • the primary serving base station receives the release request message of the secondary wireless link connection sent by the mobile terminal, and forwards the release request message of the secondary wireless link connection to the secondary serving base station;
  • the primary serving base station receives the release confirmation message of the secondary wireless link connection returned by the secondary serving base station, and forwards the release confirmation message of the secondary wireless link connection to the mobile terminal, so that the mobile terminal releases the secondary wireless link with the secondary serving base station. Road connection.
  • the main serving base station receives the release confirmation message of the auxiliary radio link connection returned by the auxiliary serving base station, and releases the auxiliary radio link connection After the confirmation message is forwarded to the mobile terminal, it also includes:
  • the primary serving base station receives the reestablishment request message of the auxiliary radio link connection sent by the mobile terminal, and forwards the reconfiguration request message of the auxiliary radio link connection to the auxiliary serving base station;
  • the primary serving base station receives the re-establishment confirmation message of the secondary radio link connection returned by the secondary serving base station, and forwards the re-establishment confirmation message of the secondary radio link connection to the mobile terminal, so that the mobile terminal re-establishes the auxiliary wireless link with the auxiliary serving base station. Road connection.
  • the primary serving base station receives the establishment confirmation message of the secondary wireless link connection returned by the auxiliary serving base station, and establishes the establishment of the auxiliary wireless link connection.
  • the confirmation message is forwarded to the mobile terminal, it also includes:
  • the primary serving base station receives the modification request message of the auxiliary wireless link connection sent by the mobile terminal, and forwards the modification request message of the auxiliary wireless link connection to the auxiliary serving base station, and the modification request message of the auxiliary wireless link connection carries the assistance Service base station identification, terminal identification, control
  • the primary serving base station receives a modification confirmation message of the secondary radio link connection returned by the secondary serving base station, and forwards the modification confirmation message of the secondary wireless link connection to the mobile terminal, so that the mobile terminal establishes a primary wireless chain with the secondary serving base station. Road connection.
  • the primary serving base station provides a signaling forwarding service for the mobile terminal, so that the mobile terminal increases the auxiliary wireless link connection manner, so that multiple base stations simultaneously serve the mobile terminal, and the mobile terminal is improved.
  • Utilization of wireless resources Mobile terminals can use more system radio resources and increase the experience of mobile terminal users.
  • FIG. 2A is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 2A, the mobile terminal of this embodiment includes:
  • the selecting module 20A is configured to use the current camping base station as a primary serving base station
  • the establishing module 21A is configured to establish a primary radio link connection with the primary serving base station
  • a measuring module 22A configured to measure signal quality of all neighboring base stations
  • the selecting module 20A is further configured to use a neighboring base station whose signal quality exceeds a preset value as an auxiliary serving base station;
  • the setup module 21A is also used to establish a secondary radio link connection with the secondary serving base station.
  • the establishing module 21 A includes:
  • the sending sub-module 23A is configured to send, by the primary serving base station, a setup request message for the auxiliary radio link connection to the auxiliary serving base station, where the setup request message of the auxiliary radio link includes the auxiliary service base station identifier, the terminal identifier, and the request service data.
  • the receiving sub-module 24A is configured to receive a setup confirmation message of the auxiliary radio link connection returned by the main serving base station, and the setup confirmation message of the auxiliary radio link is sent by the auxiliary serving base station after receiving the setup request message of the auxiliary radio link connection Message to the primary serving base station.
  • the establishing module 21A is further configured to process the auxiliary wireless link connection established with the auxiliary serving base station, including: modifying the auxiliary wireless link connection established with the auxiliary serving base station, releasing the auxiliary wireless link connection established with the auxiliary serving base station, and reconstructing A secondary radio link connection established with the secondary serving base station to translate the secondary wireless link established with the secondary serving base station.
  • the establishing module 21A is configured to modify the auxiliary wireless link connection established with the auxiliary serving base station;
  • the sending sub-module 23A is further configured to send, by the primary serving base station, a modification request message of the auxiliary wireless link connection to the auxiliary serving base station, where the modification request message of the auxiliary wireless link connection carries the auxiliary service base station identifier, the terminal identifier, and the modified service.
  • the receiving sub-module 24A is further configured to receive a modification confirmation message of the auxiliary wireless link connection returned by the primary serving base station, and the modification confirmation message of the auxiliary wireless link connection is sent by the secondary serving base station after receiving the modification request message of the auxiliary wireless link connection. Message to the primary serving base station.
  • the establishing module 21A is configured to release the auxiliary wireless link established with the auxiliary serving base station;
  • the sending sub-module 23A is further configured to send, by the primary serving base station, a release request message of the auxiliary wireless link connection to the auxiliary serving base station, where the release request message of the auxiliary wireless link connection carries the auxiliary service base station identifier and the terminal identifier;
  • the receiving sub-module 24A is further configured to receive a release confirmation message of the auxiliary wireless link connection returned by the primary serving base station, and the release confirmation message of the auxiliary wireless link connection is sent by the secondary serving base station after receiving the release request message of the secondary wireless link connection. Message to the primary serving base station.
  • the establishing module 21A is configured to re-establish a secondary radio link connection with the auxiliary serving base station; the sending sub-module 23A is further configured to send, by the primary serving base station, a re-establishment request message for the auxiliary radio link connection to the auxiliary serving base station, to assist the radio link connection.
  • the reconfiguration request message carries the auxiliary service base station identifier, the terminal identifier, the quality of service parameters of the reconstructed service data, and the service channel.
  • the receiving sub-module 24A is further configured to receive a re-establishment confirmation message of the auxiliary radio link connection returned by the main serving base station, and the re-establishment confirmation message of the auxiliary radio link is sent by the auxiliary serving base station after receiving the re-establishment request message of the auxiliary radio link connection. Message to the primary serving base station.
  • the establishing module 21A is configured to convert the auxiliary wireless link connection established with the auxiliary serving base station into a primary wireless link connection;
  • the sending sub-module 23A is further configured to send, by the primary serving base station, a modification request message of the auxiliary wireless link connection to the auxiliary serving base station, where the modification request message of the auxiliary wireless link connection carries the configuration of the secondary service base station identifier, the terminal identifier, and the control channel.
  • the parameters, the configuration parameters of the traffic channel, the quality of service parameters of the service data, and the auxiliary wireless link connection are converted into parameters of the primary wireless link connection;
  • the receiving sub-module 24A is further configured to receive the modification of the secondary wireless link connection returned by the primary serving base station.
  • the acknowledgment message, the modification acknowledgment message of the secondary radio link is a message sent by the secondary serving base station to the primary serving base station after receiving the modification request message of the secondary wireless link connection.
  • the mobile terminal increases the auxiliary wireless link connection mode, enables multiple base stations to simultaneously serve the mobile terminal, and improves the utilization rate of the mobile terminal for the air interface radio resource.
  • Mobile terminals are able to use more system radio resources, increasing the experience of mobile terminal users.
  • FIG. 2B is a schematic structural diagram of a mobile terminal of a primary serving base station according to an embodiment of the present invention. As shown in FIG. 2B, this embodiment includes:
  • the receiving module 20B is configured to receive a setup request message of the auxiliary radio link that is sent by the mobile terminal, where the setup request message of the auxiliary radio link carries the auxiliary service base station identifier, the terminal identifier, the service quality parameter and the service for requesting the service data.
  • Channel configuration parameters ;
  • a sending module 21B configured to forward an establishment request message of the auxiliary wireless link connection to the auxiliary serving base station
  • the receiving module 20B is further configured to receive a setup confirmation message of the auxiliary wireless link connection returned by the secondary serving base station;
  • the sending module 21B is further configured to forward the setup confirmation message of the auxiliary radio link connection to the mobile terminal, so that the mobile terminal establishes a secondary radio link connection with the auxiliary serving base station.
  • the receiving module 20B is further configured to receive a processing request message of the auxiliary wireless link connection sent by the mobile terminal;
  • the sending module 21B is further configured to forward the processing request message of the auxiliary wireless link connection to the auxiliary serving base station;
  • the receiving module 20B is further configured to receive a processing confirmation message of the auxiliary wireless link connection returned by the auxiliary serving base station;
  • the transmitting module 21B is further configured to forward the processing acknowledgement message of the secondary radio link connection to the mobile terminal to cause the mobile terminal to handle the secondary radio link connection with the secondary serving base station.
  • the processing request message of the auxiliary wireless link connection includes a modification request message for the auxiliary wireless link connection, a release request message for the auxiliary wireless link connection, and a reconstruction request message for the auxiliary wireless link connection.
  • the primary serving base station in this embodiment provides a signaling forwarding service for the mobile terminal, so that the mobile terminal increases the auxiliary wireless link connection manner, so that multiple base stations simultaneously serve the mobile terminal, thereby improving the utilization rate of the mobile terminal for the air interface wireless resource. .
  • Mobile terminals are able to use more system wireless resources, increasing the experience of mobile terminal users.
  • FIG. 3 is a schematic structural diagram of a multi-base station cooperation system according to an embodiment of the present invention. As shown in FIG. 3, this embodiment includes:
  • the mobile terminal 30 is configured to use the current camping base station as a primary serving base station, establish a primary radio link with the primary serving base station 31, measure signal quality of all neighboring base stations, and measure the signal quality beyond a preset value.
  • the base station serves as the auxiliary service base station 32;
  • the primary serving base station 31 is configured to establish a primary radio link connection with the mobile terminal 30, and forward the setup request message of the assisted radio link connection sent by the received mobile terminal 30 to the auxiliary serving base station 32, and then receive the auxiliary service. Confirmation of establishment of the secondary radio link connection returned by the base station 32 The message is forwarded to the mobile terminal 30 to cause the mobile terminal 30 to establish a secondary radio link connection with the secondary serving base station 32;
  • the secondary service base station 32 is configured to receive a setup request message for the secondary radio link connection sent by the primary serving base station 31, and return a setup confirmation message of the secondary radio link connection to the primary serving base station 31.
  • the primary serving base station 31 is further configured to forward the received processing request message of the secondary wireless link connection sent by the mobile terminal 30 to the secondary serving base station 32, and then connect the received secondary wireless link that is returned by the secondary serving base station 32.
  • the processing acknowledgement message is forwarded to the mobile terminal 30 to cause the mobile terminal 30 to handle the secondary radio link connection with the secondary serving base station 32.
  • the mobile terminal increases the auxiliary wireless link connection mode, enables multiple base stations to simultaneously serve the mobile terminal, and improves the utilization ratio of the mobile terminal to the air interface wireless resource.
  • the mobile terminal can use more system radio resources and increase the mobile terminal users' full body.
  • the multi-base station cooperation method in the embodiment of the present invention is further described in detail below in conjunction with the multi-base station cooperation system shown in FIG. 3:
  • the embodiments of the present invention divide the base stations participating in the collaboration into two categories: a primary serving base station and an auxiliary service base station.
  • the wireless connection between the mobile terminal and all participating cooperative base stations is divided into two categories: primary wireless link connection and secondary wireless link connection.
  • the primary serving base station can only be one serving base station, generally the mobile terminal currently camps on the base station, and the secondary serving base station can be zero or more base stations.
  • the primary serving base station and the secondary serving base station are geographically adjacent or identically covered, and the primary serving base station and the auxiliary service There must be logical link connections between the base stations, including the X2 interface and the eNodeB internal interface.
  • the wireless connection established between the mobile terminal and the primary serving base station is referred to as the primary wireless link connection
  • the wireless connection established with the secondary serving base station is referred to as the secondary wireless link connection.
  • Modifications to the secondary wireless link connection are established, modified, released, and re-established through the primary wireless link connection.
  • the main wireless link connection and the auxiliary wireless link can be converted, and the signaling process in the conversion process is passed through the main The wireless link is connected for conversion.
  • the primary wireless link connection is a relatively stable and long-term maintenance wireless link.
  • the auxiliary radio link of the auxiliary serving base station farther from the terminal may be configured to have only the downlink traffic channel data connection. If the secondary service base station can receive a better uplink signal from the mobile terminal, the secondary service base station can be configured as an uplink and downlink wireless link connection at the same time.
  • FIG. 4 is a schematic diagram of a process for a mobile terminal successfully establishing a secondary wireless link connection with a secondary serving base station. As shown in FIG. 4, the process includes:
  • Step 401 The mobile terminal establishes a primary radio link connection with the primary serving base station.
  • the mobile terminal uses the currently camping base station as the primary serving base station and establishes a primary wireless link connection with the primary serving base station, and the step of establishing a primary wireless link connection is the same as the process of establishing a wireless link connection in LTE;
  • Step 402 The mobile terminal sends an establishment request message of the auxiliary wireless link connection on the primary wireless link connection.
  • the message includes a secondary service base station identifier, a terminal identifier, a quality of service (QoS) parameter for requesting service data, and a configuration parameter of the traffic channel.
  • the mobile terminal measures the reference signal received power of all neighboring base stations, and uses the neighboring base station whose reference signal received power exceeds a preset value as the secondary serving base station.
  • the auxiliary radio link of the auxiliary service base station may be configured to connect only the downlink traffic channel data, and only the parameters of the downlink traffic channel are configured in the configuration parameters of the traffic channel, and the uplink traffic channel is not included.
  • the parameter, the uplink traffic channel is not configured, and the control channel parameter may not be configured for the auxiliary radio link, that is, the uplink service channel parameter and the control channel parameter are not carried in the setup request message of the auxiliary radio link connection;
  • Step 403 The primary serving base station sends an auxiliary wireless link connection to the secondary serving base station. Ask for news;
  • the message includes an auxiliary service base station identifier, a terminal identifier, a QoS parameter for requesting service data, and a configuration parameter of the service channel;
  • Step 404 The auxiliary serving base station sends an establishment confirmation message of the auxiliary wireless link connection to the primary serving base station.
  • the auxiliary serving base station may respond to the primary serving base station according to the current load status and the usage of the wireless resource. If it is confirmed that the mobile terminal can accept the service establishment, the secondary serving base station sends an establishment confirmation message of the secondary wireless link connection. ;
  • Step 405 The primary serving base station sends a setup confirmation message of the secondary wireless link connection to the mobile terminal.
  • the primary serving base station marks the secondary serving base station as a secondary serving base station, and sends a setup confirmation message for the secondary wireless link connection to the mobile terminal;
  • Step 406 The mobile terminal establishes a secondary wireless link connection with the secondary serving base station.
  • the mobile terminal then begins receiving downlink traffic data from the secondary serving base station.
  • FIG. 5 is a schematic flowchart of a mobile terminal not successfully establishing a secondary wireless link connection with a secondary serving base station, where the process includes:
  • Step 501 The mobile terminal establishes a primary radio link connection with the primary serving base station.
  • the mobile terminal uses the currently camping base station as the primary serving base station and establishes a primary wireless link connection with the primary serving base station, and the step of establishing a primary wireless link connection is the same as the process of establishing a wireless link connection in LTE;
  • Step 502 The mobile terminal sends an establishment request message of the auxiliary wireless link connection on the primary wireless link connection.
  • the message includes the auxiliary service base station identifier, the terminal identifier, the quality of service (QoS) parameter of the requested service data, and the configuration parameter of the service channel.
  • the mobile terminal measures the reference signal received power of all neighboring base stations, and the reference signal received power exceeds a preset value.
  • the neighboring base stations serve as secondary service base stations.
  • the auxiliary radio link of the auxiliary service base station may be configured to connect only the downlink traffic channel data, and only the parameters of the downlink traffic channel are configured in the configuration parameters of the traffic channel, and the uplink traffic channel is not included.
  • the parameter, the uplink traffic channel is not configured, and the control channel parameter may not be configured for the auxiliary radio link, that is, the uplink service channel parameter and the control channel parameter are not carried in the setup request message of the auxiliary radio link connection;
  • Step 503 The primary serving base station sends a setup request message of the secondary wireless link connection to the secondary serving base station.
  • the message includes an auxiliary service base station identifier, a terminal identifier, a QoS parameter for requesting service data, and a configuration parameter of the service channel;
  • Step 504 The auxiliary serving base station sends a setup rejection message of the auxiliary wireless link connection to the primary serving base station.
  • the auxiliary serving base station may respond to the primary serving base station according to the current load status and the usage of the wireless resource. If it is confirmed that the mobile terminal cannot be accepted for service establishment, the secondary serving base station sends a setup reject message of the secondary wireless link connection. ;
  • Step 505 The primary serving base station sends a setup reject message of the secondary wireless link connection to the mobile terminal.
  • FIG. 6 is a schematic diagram of a process for a mobile terminal to successfully modify a secondary wireless link connection with a secondary serving base station, where the process includes:
  • Step 601 The mobile terminal sends a modification request message of the auxiliary wireless link connection on the primary wireless link connection.
  • the message includes an auxiliary serving base station identifier, a terminal identifier, a QoS parameter for requesting service data, a configuration parameter of the control channel, and a configuration parameter of the traffic channel. If the mobile terminal does not need to configure the control channel, the configuration parameters of the control channel will not be included in the message.
  • the traffic channel configuration parameters need to describe the rate of the corresponding uplink or downlink traffic data. If the traffic channel is only configured The traffic channel can be described in the configuration parameters of the traffic channel.
  • the mobile terminal may calculate the path loss of the auxiliary wireless link according to the channel quality of the received auxiliary wireless link connection, and if the path loss is less than a threshold, the mobile terminal may configure the corresponding uplink service channel; 602: The primary serving base station sends a modification request message of the secondary wireless link connection to the secondary serving base station.
  • the message includes the auxiliary service base station identifier, the terminal identifier, and the service data that is expected to be modified.
  • QoS parameters configuration parameters of the control channel desired to be modified, configuration parameters of the traffic channel desired to be modified;
  • Step 603 The auxiliary serving base station sends a modification confirmation message of the auxiliary wireless link connection to the primary serving base station.
  • the auxiliary serving base station may respond to the primary serving base station according to the current load status and the usage of the wireless resource. If it is confirmed that the mobile terminal can accept the service modification, the secondary serving base station sends a modification confirmation message of the secondary wireless link connection.
  • the message includes the auxiliary service base station identifier, the terminal identifier, the QoS parameter for confirming the acceptable service data, the configuration parameter for confirming the configurable control channel, and the configuration parameter for confirming the configurable traffic channel.
  • Step 604 The primary serving base station The mobile terminal sends a modification confirmation message of the auxiliary wireless link connection;
  • the primary serving base station sends a modification confirmation message of the secondary radio link connection to the mobile terminal, where the message includes the secondary service base station identifier, the terminal identifier, the QoS parameter for confirming the acceptable service data, the configuration parameter of the control channel that can be configured, and the confirmation.
  • Step 605 The mobile terminal modifies the auxiliary wireless link connection established with the secondary serving base station.
  • the mobile terminal performs a corresponding auxiliary radio link modification operation with the auxiliary serving base station.
  • FIG. 7 is a schematic flowchart of a mobile terminal not successfully modifying a secondary wireless link connection with a secondary serving base station, where the process includes: Step 701: The mobile terminal sends a modification request message of the auxiliary wireless link connection on the primary wireless link connection.
  • the message includes the secondary service base station identifier, the terminal identifier, the QoS parameters of the requested service data, the configuration parameters of the control channel, and the configuration parameters of the traffic channel. If the mobile terminal does not need to configure the control channel, the configuration parameters of the control channel will not be included in the message.
  • the traffic channel configuration parameters need to describe the rate of the corresponding uplink or downlink traffic data. If the traffic channel is only configured with the downlink traffic channel, it can be described in the configuration parameters of the traffic channel.
  • the mobile terminal may calculate the path loss of the auxiliary wireless link according to the channel quality of the received auxiliary wireless link connection, and if the path loss is less than a threshold, the mobile terminal may configure the corresponding uplink service channel; 702: The primary serving base station sends a modification request message for the secondary wireless link connection to the secondary serving base station.
  • the message includes a secondary service base station identifier, a terminal identifier, a QoS parameter of the service data that is expected to be modified, a configuration parameter of the control channel that is expected to be modified, and a configuration parameter of the traffic channel that is expected to be modified;
  • Step 703 The auxiliary serving base station sends a modification rejection message of the auxiliary wireless link connection to the primary serving base station.
  • the auxiliary serving base station may respond to the primary serving base station according to the current load status and the usage of the wireless resource. If it is confirmed that the mobile terminal cannot accept the service modification, the secondary serving base station sends a modification reject message of the secondary wireless link connection.
  • the message includes the auxiliary service base station identifier and the terminal identifier.
  • Step 704 The primary serving base station sends a modification reject message of the secondary wireless link connection to the mobile terminal.
  • the primary serving base station sends a modification reject message of the auxiliary wireless link connection to the mobile terminal, where the message includes the secondary service base station identifier and the terminal identifier;
  • Step 705 The mobile terminal maintains the original auxiliary wireless link established with the auxiliary serving base station. Pick up.
  • FIG. 8 is a schematic diagram of a process for a mobile terminal to release a secondary wireless link connection with a secondary serving base station, where the process includes:
  • Step 801 The mobile terminal sends a release request message of the auxiliary wireless link connection on the primary wireless link connection.
  • the message includes the auxiliary service base station identifier and the terminal identifier.
  • Step 802 The primary serving base station sends a release request message for the secondary wireless link connection to the secondary serving base station.
  • the message includes an auxiliary service base station identifier
  • Step 803 The secondary serving base station terminates the secondary wireless link connection with the mobile terminal.
  • Step 804 The secondary serving base station sends a release confirmation message of the secondary wireless link connection to the primary serving base station.
  • FIG. 9 is a schematic flowchart of the mobile terminal successfully reestablishing the auxiliary wireless link connection with the auxiliary serving base station, and the process includes:
  • Step 901 The mobile terminal sends a reconfiguration request message of the auxiliary radio link connection on the primary radio link connection.
  • the message includes the auxiliary service base station identifier, the terminal identifier, the QoS parameter of the reconstruction request service data, the configuration parameter of the control channel, and the configuration parameter of the service channel. If the mobile terminal does not need to configure the control channel, the configuration parameters of the control channel will not be included in the message.
  • the traffic channel configuration parameter needs to describe the rate of the corresponding uplink or downlink traffic data. If the traffic channel is only configured with a downlink traffic channel, it can be described in the configuration parameters of the traffic channel.
  • Step 902 The primary serving base station sends a re-establishment request message of the auxiliary radio link connection to the auxiliary serving base station.
  • the message includes the auxiliary service base station identifier, the terminal identifier, and the service data that needs to be reconstructed.
  • Step 903 The auxiliary serving base station sends a reestablishment confirmation message of the auxiliary radio link connection to the primary serving base station.
  • the auxiliary serving base station may respond to the primary serving base station according to the current load status and the usage of the wireless resource. If it is confirmed that the mobile terminal can accept the service reconstruction, the secondary serving base station sends a reestablishment confirmation message of the secondary wireless link connection.
  • the message includes a secondary service base station identifier, a terminal identifier, a QoS parameter for confirming the reconstructed service data, a configuration parameter for confirming the reconstructed control channel, and a configuration parameter for confirming the reconstructed traffic channel;
  • Step 904 The primary serving base station sends a re-establishment confirmation message of the auxiliary radio link connection to the mobile terminal.
  • the primary serving base station sends a re-establishment confirmation message of the auxiliary radio link connection to the mobile terminal, where the message includes the auxiliary serving base station identifier, the terminal identifier, the QoS parameter of the reconstructed service data, the configuration parameter of the reconfigured control channel, and the service for reestablishing the configuration.
  • Channel configuration parameters include the auxiliary serving base station identifier, the terminal identifier, the QoS parameter of the reconstructed service data, the configuration parameter of the reconfigured control channel, and the service for reestablishing the configuration.
  • Step 905 The mobile terminal performs corresponding auxiliary wireless link connection re-establishment operation with the auxiliary serving base station;
  • Step 906 The auxiliary serving base station sends a re-establishment completion message of the auxiliary radio link connection to the primary serving base station.
  • the message carries the auxiliary service base station identifier and the terminal identifier.
  • FIG. 10 is a schematic flowchart of a mobile terminal not successfully re-establishing a secondary wireless link connection with a secondary serving base station, where the process includes:
  • Step 1001 The mobile terminal sends a re-establishment request message of the auxiliary radio link connection on the primary radio link connection;
  • the message includes the auxiliary service base station identifier, the terminal identifier, the QoS parameter of the reconstruction request service data, the configuration parameter of the control channel, and the configuration parameter of the service channel. If the mobile terminal does not need If the control channel is configured, the configuration parameters of the control channel will not be included in the message.
  • the traffic channel configuration parameters need to describe the rate of the corresponding uplink or downlink traffic data. If the traffic channel is only configured with a downlink traffic channel, it can be described in the configuration parameters of the traffic channel;
  • Step 1002 The primary serving base station sends a reconfiguration request message of the auxiliary radio link connection to the auxiliary serving base station.
  • the message includes the auxiliary service base station identifier, the terminal identifier, the QoS parameters of the service data to be reconstructed, the configuration parameters of the control channel to be reconstructed, and the configuration parameters of the service channel to be reconstructed;
  • Step 1003 The secondary service base station sends a reestablishment reject message of the secondary radio link connection to the primary serving base station.
  • the auxiliary serving base station may respond to the primary serving base station according to the current load status and the usage of the wireless resource. If it is confirmed that the mobile terminal cannot be accepted for service reconstruction, the secondary serving base station sends a reestablishment reject message of the secondary wireless link connection.
  • the message includes the auxiliary service base station identifier and the terminal identifier.
  • Step 1004 The primary serving base station sends a re-establishment rejection message of the secondary radio link connection to the mobile terminal.
  • the primary serving base station sends a reconfiguration reject message of the auxiliary radio link connection to the mobile terminal, where the message includes the auxiliary service base station identifier and the terminal identifier;
  • Step 1005 The mobile terminal cancels the auxiliary wireless link connection with the auxiliary serving base station. After the mobile terminal has established a primary radio link connection with the current primary serving base station, and after establishing an auxiliary wireless link connection with the secondary serving base station, if the channel quality of the mobile terminal and the secondary serving base station is better than the quality of service of the primary serving base station For example, if the mobile terminal measures that the reference signal received power of the secondary base station is greater than a preset threshold, the mobile terminal needs to convert the auxiliary wireless link connection with the secondary serving base station into a primary wireless link connection.
  • FIG. 11 is a schematic flowchart of a mobile terminal converting a secondary wireless link to a primary wireless link. Includes:
  • Step 1101 The mobile terminal sends a modification request message for the auxiliary wireless link connection on the primary wireless link connection.
  • the message needs to carry the secondary service base station identifier, the terminal identifier, the configuration parameters of the control channel, the configuration parameters of the traffic channel, and the QoS parameters of the service data.
  • parameters including the auxiliary wireless link connection converted to the primary wireless link connection are included;
  • Step 1102 The primary serving base station sends a modification request message for the secondary wireless link connection to the secondary serving base station.
  • Step 1103 The auxiliary serving base station sends a modification confirmation message of the auxiliary wireless link connection to the primary serving base station.
  • the secondary service base station performs a confirmation response based on the current load status and the usage of the radio resources.
  • the auxiliary serving base station sends a modification confirmation message of the auxiliary wireless link connection to the primary serving base station, where the message carries the configuration parameters of the control channel, the configuration parameters of the traffic channel, and the QoS of the service data according to the parameter configuration that can be received by the secondary serving base station. Parameters are fed back.
  • the secondary service base station determines the parameters of the primary radio link connection based on the secondary radio link connection, and carries the acknowledgement parameter in the message. After transmitting the message, the secondary service base station marks itself as the primary serving base station, and marks the secondary wireless link connection as the primary wireless link connection;
  • Step 1104 The primary serving base station sends a modification confirmation message of the auxiliary wireless link connection to the mobile terminal.
  • the message carries the modified control channel configuration parameter and the service channel configuration parameter of the auxiliary wireless link connection.
  • the primary serving base station marks itself as the secondary serving base station.
  • the message also has configuration parameters that modify the primary radio link connection, modify the previous primary radio link to the parameters of the auxiliary radio link connection, and control channel parameters and traffic channel parameters of the previous main radio link connection reconfiguration. ;
  • Step 1105 The mobile terminal simultaneously performs primary wireless link connection and auxiliary wireless link connection repair. Change the process.
  • the technical solution provided by the embodiment of the present invention can coordinate multiple location separation, cooperative work between independently operating base stations, introduce a concept of centralized management, and divide the participating base stations into a primary serving base station and an auxiliary serving base station, the former being responsible for all Collaborative work of base station selection, state collection, analysis, scheduling assignments, etc., while interacting with user data, the function is more complex; while the latter is mainly responsible for the interaction of its own state and interaction with user data, the function is relatively simple. Moreover, the roles of the two can be interchanged under certain conditions. For different users, the same base station may play two different roles at the same time.
  • the auxiliary wireless link connection mode is added to the mobile terminal, so that multiple base stations can simultaneously serve the mobile terminal, and the utilization ratio of the mobile terminal to the air interface wireless resource is improved.
  • Mobile terminals can use more system radio resources, increasing the experience of mobile terminal users.
  • the method embodiment is corresponding to the device embodiment, and the portion not described in detail in the method embodiment may refer to the description of the relevant part in the device embodiment, and the partial reference method not described in detail in the device embodiment.
  • the description of the relevant parts in the embodiment can be.
  • the steps of the foregoing embodiments may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium.
  • the method includes the steps of the foregoing method embodiment, such as: a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM). Wait.
  • sequence numbers of the steps are not used to limit the sequence of the steps.
  • the steps of the steps are changed without any creative work. It is also within the scope of the invention.

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Abstract

本发明提供一种多基站协作方法、系统及移动终端、主服务基站，涉及移动通信领域。其中，该多基站协作方法包括：移动终端将当前驻留基站作为主服务基站，并建立与所述主服务基站的主无线链路连接；所述移动终端测量所有相邻基站的信号质量，并将信号质量超过预设值的相邻基站作为辅助服务基站；所述移动终端建立与所述辅助服务基站的辅助无线链路连接。本发明的技术方案适用于长期演进移动通信系统中，能够实现多个基站间的协同工作。

Description

多基站协作方法、 系统及移动终端、 主服务基站 技术领域
本发明涉及移动通信领域， 特别是指一种多基站协作方法、 系统及移 动终端、 主服务基站。 背景技术
多点协作传输及接收 ( Coordinated Multiple Point Transmission and Reception )技术是为了进一步满足长期演进（ Long Term Evolution, LTE ) 系统对于边缘用户吞吐量、 边缘用户频率利用率以及系统整体性能而提出 的 , 并被第三代合作伙伴计戈 ( 3rd generation partnership project )作为 LTE 系统的后继者 LTE-advanced指定为其技术框架中重要的元素。 该技术的核 心思想是通过具有空间位置相邻性的多个传输点同时对一个用户或多个用 户服务。 图 1所示为 LTE移动通信系统架构示意图， LTE移动通信系统主 要包括：核心网（ Core Network , CN )和接入网（ Evolved Universal Terrestrial Radio Access Network, E_UTRAN ) , 核心网主要包括移动性管理实体 ( Mobile Management Entity , MME )和月良务网关 （Serving Gateway , S-GW ), 接入网由演进型节点 B ( Evolved Node B, eNodeb )构成， 核心网 和接入网之间通过 S 1接口互联互通， 接入网内部不同的 eNodeb之间通过 X2接口互联互通。
相较于现有的 LTE网络框架和设计理念， 多点协作传输及接收技术引 入的最大变化在于用户终端将同时与多个空间位置上相邻的基站进行数据 接收与发送的操作， 在这种情况下协调多个位置分离、 独立运行的基站之 间的协同工作就显得十分重要， 但是现有技术中还没有提出具体的工作流 程。 发明内容
本发明要解决的技术问题是提供一种多基站协作方法、 系统及移动终 端、 主服务基站， 能够实现多个基站间的协同工作。
为解决上述技术问题， 本发明的实施例提供技术方案如下：
一方面， 提供一种多基站协作方法， 包括：
移动终端将当前驻留基站作为主服务基站， 并建立与所述主服务基站 的主无线链路连接；
所述移动终端测量所有相邻基站的信号质量， 并将信号质量超过预设 值的相邻基站作为辅助服务基站；
所述移动终端建立与所述辅助服务基站的辅助无线链路连接。
其中， 所述移动终端建立与所述辅助服务基站的辅助无线链路连接包 括：
所述移动终端经所述主服务基站向所述辅助服务基站发送辅助无线链 路连接的建立请求消息， 所述辅助无线链路连接的建立请求消息中携带有 辅助服务基站标识、 终端标识、 请求业务数据的服务质量参数和业务信道 的配置参数；
所述移动终端接收所述主服务基站返回的辅助无线链路连接的建立确 认消息， 所述辅助无线链路连接的建立确认消息为所述辅助服务基站在接 收到所述辅助无线链路连接的建立请求消息后发送至所述主服务基站的消 息。
其中， 所述移动终端建立与所述辅助服务基站的辅助无线链路连接之 后还包括：
所述移动终端处理与所述辅助服务基站建立的辅助无线链路连接； 所述移动终端处理与所述辅助服务基站建立的辅助无线链路连接包 括： 所述移动终端经所述主服务基站向所述辅助服务基站发送辅助无线链 路连接的处理请求消息；
所述移动终端接收所述主服务基站返回的辅助无线链路连接的处理确 认消息。
本发明实施例还提供了一种多基站协作方法， 包括：
主服务基站接收移动终端发送的辅助无线链路连接的建立请求消息， 并将所述辅助无线链路连接的建立请求消息转发给辅助服务基站；
所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的建 立确认消息， 并将所述辅助无线链路连接的建立确认消息转发给所述移动 终端， 以使所述移动终端建立与所述辅助服务基站的辅助无线链路连接。
其中， 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连 接的建立确认消息， 并将所述辅助无线链路连接的建立确认消息转发给所 述移动终端之后还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的处理请求消 息， 并将所述辅助无线链路连接的处理请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的处 理确认消息， 并将所述辅助无线链路连接的处理确认消息转发给所述移动 终端， 以使所述移动终端处理与所述辅助服务基站的辅助无线链路连接。
其中， 所述辅助无线链路连接的处理请求消息包括所述辅助无线链路 连接的修改请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助 无线链路连接的建立确认消息， 并将所述辅助无线链路连接的建立确认消 息转发给所述移动终端之后还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的修改请求消 息， 并将所述辅助无线链路连接的修改请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的修 改确认消息， 并将所述辅助无线链路连接的修改确认消息转发给所述移动 终端， 以使所述移动终端修改与所述辅助服务基站的辅助无线链路连接。
其中， 所述辅助无线链路连接的处理请求消息包括所述辅助无线链路 连接的释放请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助 无线链路连接的建立确认消息， 并将所述辅助无线链路连接的建立确认消 息转发给所述移动终端之后还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的释放请求消 息， 并将所述辅助无线链路连接的释放请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的释 放确认消息， 并将所述辅助无线链路连接的释放确认消息转发给所述移动 终端， 以使所述移动终端释放与所述辅助服务基站的辅助无线链路连接。
其中， 所述辅助无线链路连接的处理请求消息包括所述辅助无线链路 连接的重建请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助 无线链路连接的释放确认消息， 并将所述辅助无线链路连接的释放确认消 息转发给所述移动终端之后还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的重建请求消 息， 并将所述辅助无线链路连接的重建请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的重 建确认消息， 并将所述辅助无线链路连接的重建确认消息转发给所述移动 终端， 以使所述移动终端重建与所述辅助服务基站的辅助无线链路连接。
其中， 所述辅助无线链路连接的处理请求消息包括所述辅助无线链路 连接的修改请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助 无线链路连接的建立确认消息， 并将所述辅助无线链路连接的建立确认消 息转发给所述移动终端之后还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的修改请求消 息， 并将所述辅助无线链路连接的修改请求消息转发给所述辅助服务基站， 所述辅助无线链路连接的修改请求消息中携带有辅助服务基站标识、 终端 标识、 控制信道的配置参数、 业务信道的配置参数、 业务数据的服务质量 参数和辅助无线链路连接转换为主无线链路连接的参数；
所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的修 改确认消息， 并将所述辅助无线链路连接的修改确认消息转发给所述移动 终端， 以使所述移动终端建立与所述辅助服务基站的主无线链路连接。
本发明实施例还提供了一种移动终端， 包括：
选择模块， 用于将当前驻留基站作为主服务基站；
建立模块， 用于与所述主服务基站建立主无线链路连接；
测量模块， 用于测量所有相邻基站的信号质量；
所述选择模块还用于将信号质量超过预设值的相邻基站作为辅助服务 基站；
所述建立模块还用于建立与所述辅助服务基站的辅助无线链路连接。 其中， 所述建立模块包括：
发送子模块， 用于经所述主服务基站向所述辅助服务基站发送辅助无 线链路连接的建立请求消息， 所述辅助无线链路连接的建立请求消息中携 带有辅助服务基站标识、 终端标识、 请求业务数据的服务质量参数和业务 信道的配置参数；
接收子模块， 用于接收所述主服务基站返回的辅助无线链路连接的建 立确认消息， 所述辅助无线链路连接的建立确认消息为所述辅助服务基站 在接收到所述辅助无线链路连接的建立请求消息后发送至所述主服务基站 的消息。
其中， 所述建立模块还用于处理与所述辅助服务基站建立的辅助无线 链路连接； 所述发送子模块还用于经所述主服务基站向所述辅助服务基站发送辅 助无线链路连接的处理请求消息；
所述接收子模块还用于接收所述主服务基站返回的辅助无线链路连接 的处理确认消息。
本发明实施例还提供了一种主服务基站， 包括：
接收模块， 用于接收移动终端发送的辅助无线链路连接的建立请求消 息；
发送模块， 用于将所述辅助无线链路连接的建立请求消息转发给辅助 服务基站；
所述接收模块还用于接收所述辅助服务基站返回的辅助无线链路连接 的建立确认消息；
所述发送模块还用于将所述辅助无线链路连接的建立确认消息转发给 所述移动终端， 以使所述移动终端建立与所述辅助服务基站的辅助无线链 路连接。
其中， 所述接收模块还用于接收移动终端发送的辅助无线链路连接的 处理请求消息；
所述发送模块还用于将所述辅助无线链路连接的处理请求消息转发给 所述辅助服务基站；
所述接收模块还用于接收所述辅助服务基站返回的辅助无线链路连接 的处理确认消息；
所述发送模块还用于将所述辅助无线链路连接的处理确认消息转发给 所述移动终端， 以使所述移动终端处理与所述辅助服务基站的辅助无线链 路连接。
本发明实施例还提供了一种多基站协作系统， 包括：
移动终端， 用于将当前驻留基站作为主服务基站， 并建立与所述主服 务基站的主无线链路连接， 测量所有相邻基站的信号质量， 并将信号质量 超过预设值的相邻基站作为辅助服务基站；
所述主服务基站， 用于建立与移动终端的主无线链路连接， 将接收到 的所述移动终端发送的辅助无线链路连接的建立请求消息转发给所述辅助 服务基站， 之后将接收到所述辅助服务基站返回的辅助无线链路连接的建 立确认消息转发给所述移动终端， 以使所述移动终端建立与所述辅助服务 基站的辅助无线链路连接；
所述辅助服务基站， 用于接收所述主服务基站发送的辅助无线链路连 接的建立请求消息， 并向所述主服务基站返回辅助无线链路连接的建立确 认消息。
其中， 所述主服务基站还用于将接收到的所述移动终端发送的辅助无 线链路连接的处理请求消息转发给所述辅助服务基站， 之后将接收到所述 辅助服务基站返回的辅助无线链路连接的处理确认消息转发给所述移动终 端， 以使所述移动终端处理与所述辅助服务基站的辅助无线链路连接。
本发明的实施例具有以下有益效果：
移动终端增加了辅助无线链路连接方式， 能够使多个基站同时服务于 移动终端， 提高了移动终端对空口无线资源的利用率， 并且， 移动终端能 够使用更多的系统无线资源， 增加了移动终端用户的体验。 附图说明
图 1A为本发明的实施例一种多基站协作方法的流程示意图； 图 1B为本发明另一实施例多基站协作方法的流程示意图；
图 2A为本发明的实施例移动终端的结构示意图；
图 2B为本发明的实施例主服务基站移动终端的结构示意图； 图 3为本发明的实施例多基站协作系统的结构示意图；
图 4为本发明的实施例移动终端成功建立与辅助服务基站的辅助无线 链路连接的流程示意图；
图 5 为本发明的实施例移动终端未成功建立与辅助服务基站的辅助无 线链路连接的流程示意图；
图 6为本发明的实施例移动终端成功修改与辅助服务基站的辅助无线 链路连接的流程示意图；
图 7为本发明的实施例移动终端未成功修改与辅助服务基站的辅助无 线链路连接的流程示意图；
图 8为本发明的实施例移动终端释放与辅助服务基站的辅助无线链路 连接的流程示意图；
图 9为本发明的实施例移动终端成功重建与辅助服务基站的辅助无线 链路连接的流程示意图；
图 10为本发明的实施例移动终端未成功重建与辅助服务基站的辅助无 线链路连接的流程示意图；
图 11为本发明的实施例移动终端将辅助无线链路连接转换为主无线链 路连接的流程示意图。 具体实施方式
为使本发明的实施例要解决的技术问题、 技术方案和优点更加清楚， 下面将结合附图及具体实施例进行详细描述。
本发明的实施例提供一种多基站协作方法、 系统及移动终端， 能够实 现多个基站间的协同工作。
图 1A为本发明的实施例一种多基站协作方法的流程示意图， 如图 1A 所示， 该方法包括：
步骤 101A: 移动终端将当前驻留基站作为主服务基站， 并建立与主服 务基站的主无线链路连接；
步骤 102A: 移动终端测量所有相邻基站的信号质量， 并将信号质量超 过预设值的相邻基站作为辅助服务基站；
步骤 103A: 移动终端建立与辅助服务基站的辅助无线链路连接。
其中， 移动终端可以具体测量所有相邻基站的参考信号接收功率， 并 将参考信号接收功率超过预设值的相邻基站作为辅助服务基站。
其中， 移动终端建立与辅助服务基站的辅助无线链路连接包括： 移动 终端经主服务基站向辅助服务基站发送辅助无线链路连接的建立请求消 息， 辅助无线链路连接的建立请求消息中携带有辅助服务基站标识、 终端 标识、 请求业务数据的服务质量参数和业务信道的配置参数； 移动终端接 收主服务基站返回的辅助无线链路连接的建立确认消息， 辅助无线链路连 接的建立确认消息为辅助服务基站在接收到辅助无线链路连接的建立请求 消息后发送至主服务基站的消息。
移动终端建立与辅助服务基站的辅助无线链路连接之后还包括： 移动终端处理与辅助服务基站建立的辅助无线链路连接；
移动终端处理与辅助服务基站建立的辅助无线链路连接包括： 移动终端经主服务基站向辅助服务基站发送辅助无线链路连接的处理 请求消息；
移动终端接收主服务基站返回的辅助无线链路连接的处理确认消息。 之后， 移动终端对辅助无线链路连接进行处理。 移动终端对辅助无线 链路连接的处理可以包括修改、 释放、 重建和转换。
本实施例的多基站协作方法， 移动终端增加了辅助无线链路连接方式， 能够使多个基站同时服务于移动终端， 提高了移动终端对空口无线资源的 利用率。 移动终端能够使用更多的系统无线资源， 增加了移动终端用户的 体验。
图 1B为本发明另一实施例多基站协作方法的流程示意图， 如图 1B所 示， 该方法包括： 步骤 101B: 主服务基站接收移动终端发送的辅助无线链路连接的建立 请求消息， 并将辅助无线链路连接的建立请求消息转发给辅助服务基站； 辅助无线链路连接的建立请求消息中携带有辅助服务基站标识、 终端 标识、 请求业务数据的服务质量参数和业务信道的配置参数；
步骤 102B: 主服务基站接收辅助服务基站返回的辅助无线链路连接的 建立确认消息， 并将辅助无线链路连接的建立确认消息转发给移动终端， 以使移动终端建立与辅助服务基站的辅助无线链路连接。
其中， 主服务基站将辅助无线链路连接的建立确认消息转发给移动终 端之后包括： 1、 主服务基站接收移动终端发送的辅助无线链路连接的处理 请求消息， 并将辅助无线链路连接的处理请求消息转发给辅助服务基站；
2、 主服务基站接收辅助服务基站返回的辅助无线链路连接的处理确认 消息， 并将辅助无线链路连接的处理确认消息转发给移动终端， 以使移动 终端处理与辅助服务基站的辅助无线链路连接。
其中， 辅助无线链路连接的处理请求消息包括辅助无线链路连接的修 改请求消息、 辅助无线链路连接的释放请求消息、 辅助无线链路连接的重 建请求消息。
当辅助无线链路连接的处理请求消息为辅助无线链路连接的修改请求 消息时， 主服务基站接收辅助服务基站返回的辅助无线链路连接的建立确 认消息， 并将辅助无线链路连接的建立确认消息转发给移动终端之后还包 括：
1、 主服务基站接收移动终端发送的辅助无线链路连接的修改请求消 息， 并将辅助无线链路连接的修改请求消息转发给辅助服务基站；
2、 主服务基站接收辅助服务基站返回的辅助无线链路连接的修改确认 消息， 并将辅助无线链路连接的修改确认消息转发给移动终端， 以使移动 终端修改与辅助服务基站的辅助无线链路连接。 当辅助无线链路连接的处理请求消息为辅助无线链路连接的释放请求 消息时， 主服务基站接收辅助服务基站返回的辅助无线链路连接的建立确 认消息， 并将辅助无线链路连接的建立确认消息转发给移动终端之后还包 括：
1、 主服务基站接收移动终端发送的辅助无线链路连接的释放请求消 息， 并将辅助无线链路连接的释放请求消息转发给辅助服务基站；
2、 主服务基站接收辅助服务基站返回的辅助无线链路连接的释放确认 消息， 并将辅助无线链路连接的释放确认消息转发给移动终端， 以使移动 终端释放与辅助服务基站的辅助无线链路连接。
当辅助无线链路连接的处理请求消息为辅助无线链路连接的重建请求 消息时， 主服务基站接收辅助服务基站返回的辅助无线链路连接的释放确 认消息， 并将辅助无线链路连接的释放确认消息转发给移动终端之后还包 括：
1、 主服务基站接收移动终端发送的辅助无线链路连接的重建请求消 息， 并将辅助无线链路连接的重建请求消息转发给辅助服务基站；
2、 主服务基站接收辅助服务基站返回的辅助无线链路连接的重建确认 消息， 并将辅助无线链路连接的重建确认消息转发给移动终端， 以使移动 终端重建与辅助服务基站的辅助无线链路连接。
当辅助无线链路连接的处理请求消息为辅助无线链路连接的修改请求 消息时， 主服务基站接收辅助服务基站返回的辅助无线链路连接的建立确 认消息， 并将辅助无线链路连接的建立确认消息转发给移动终端之后还包 括：
1、 主服务基站接收移动终端发送的辅助无线链路连接的修改请求消 息， 并将辅助无线链路连接的修改请求消息转发给辅助服务基站， 辅助无 线链路连接的修改请求消息中携带有辅助服务基站标识、 终端标识、 控制 信道的配置参数、 业务信道的配置参数、 业务数据的服务质量参数和辅助 无线链路连接转换为主无线链路连接的参数；
2、 主服务基站接收辅助服务基站返回的辅助无线链路连接的修改确认 消息， 并将辅助无线链路连接的修改确认消息转发给移动终端， 以使移动 终端建立与辅助服务基站的主无线链路连接。
本实施例的多基站协作方法， 主服务基站为移动终端提供信令转发服 务， 使移动终端增加了辅助无线链路连接方式， 从而使多个基站同时服务 于移动终端， 提高了移动终端对空口无线资源的利用率。 移动终端能够使 用更多的系统无线资源， 增加了移动终端用户的体验。
图 2A为本发明的实施例移动终端的结构示意图， 如图 2A所示， 本实 施例移动终端包括：
选择模块 20A, 用于将当前驻留基站作为主服务基站；
建立模块 21A, 用于与主服务基站建立主无线链路连接；
测量模块 22A, 用于测量所有相邻基站的信号质量；
选择模块 20A还用于将信号质量超过预设值的相邻基站作为辅助服务 基站；
建立模块 21A还用于建立与辅助服务基站的辅助无线链路连接。
其中， 建立模块 21 A包括：
发送子模块 23A, 用于经主服务基站向辅助服务基站发送辅助无线链 路连接的建立请求消息， 辅助无线链路连接的建立请求消息中携带有辅助 服务基站标识、 终端标识、 请求业务数据的服务质量参数和业务信道的配 置参数；
接收子模块 24A, 用于接收主服务基站返回的辅助无线链路连接的建 立确认消息， 辅助无线链路连接的建立确认消息为辅助服务基站在接收到 辅助无线链路连接的建立请求消息后发送至主服务基站的消息。 其中， 建立模块 21A还用于处理与辅助服务基站建立的辅助无线链路 连接， 包括： 修改与辅助服务基站建立的辅助无线链路连接， 释放与辅助 服务基站建立的辅助无线链路连接， 重建与辅助服务基站建立的辅助无线 链路连接， 转换与辅助服务基站建立的辅助无线链路连接。
其中， 建立模块 21A用于修改与辅助服务基站建立的辅助无线链路连 接；
发送子模块 23A还用于经主服务基站向辅助服务基站发送辅助无线链 路连接的修改请求消息， 辅助无线链路连接的修改请求消息中携带有辅助 服务基站标识、 终端标识、 修改后的业务数据的服务质量参数和业务信道 的配置参数；
接收子模块 24A还用于接收主服务基站返回的辅助无线链路连接的修 改确认消息， 辅助无线链路连接的修改确认消息为辅助服务基站在接收到 辅助无线链路连接的修改请求消息后发送至主服务基站的消息。
其中， 建立模块 21A用于释放与辅助服务基站建立的辅助无线链路连 接；
发送子模块 23A还用于经主服务基站向辅助服务基站发送辅助无线链 路连接的释放请求消息， 辅助无线链路连接的释放请求消息中携带有辅助 服务基站标识和终端标识；
接收子模块 24A还用于接收主服务基站返回的辅助无线链路连接的释 放确认消息， 辅助无线链路连接的释放确认消息为辅助服务基站在接收到 辅助无线链路连接的释放请求消息后发送至主服务基站的消息。
其中， 建立模块 21A用于重建与辅助服务基站的辅助无线链路连接； 发送子模块 23A还用于经主服务基站向辅助服务基站发送辅助无线链 路连接的重建请求消息， 辅助无线链路连接的重建请求消息中携带有辅助 服务基站标识、 终端标识、 重建的业务数据的服务质量参数和业务信道的 配置参数；
接收子模块 24A还用于接收主服务基站返回的辅助无线链路连接的重 建确认消息， 辅助无线链路连接的重建确认消息为辅助服务基站在接收到 辅助无线链路连接的重建请求消息后发送至主服务基站的消息。
其中， 建立模块 21A用于将与辅助服务基站建立的辅助无线链路连接 转换为主无线链路连接；
发送子模块 23A还用于经主服务基站向辅助服务基站发送辅助无线链 路连接的修改请求消息， 辅助无线链路连接的修改请求消息中携带有辅助服 务基站标识、 终端标识、 控制信道的配置参数、 业务信道的配置参数、 业务 数据的服务质量参数和辅助无线链路连接转换为主无线链路连接的参数； 接收子模块 24A还用于接收主服务基站返回的辅助无线链路连接的修 改确认消息， 辅助无线链路连接的修改确认消息为辅助服务基站在接收到 辅助无线链路连接的修改请求消息后发送至主服务基站的消息。
本实施例的移动终端， 移动终端增加了辅助无线链路连接方式， 能够 使多个基站同时服务于移动终端， 提高了移动终端对空口无线资源的利用 率。 移动终端能够使用更多的系统无线资源， 增加了移动终端用户的体验。
图 2B为本发明的实施例主服务基站移动终端的结构示意图， 如图 2B 所示， 本实施例包括：
接收模块 20B , 用于接收移动终端发送的辅助无线链路连接的建立请 求消息， 辅助无线链路连接的建立请求消息中携带有辅助服务基站标识、 终端标识、 请求业务数据的服务质量参数和业务信道的配置参数；
发送模块 21B , 用于将辅助无线链路连接的建立请求消息转发给辅助 服务基站；
接收模块 20B还用于接收辅助服务基站返回的辅助无线链路连接的建 立确认消息； 发送模块 21B还用于将辅助无线链路连接的建立确认消息转发给移动 终端， 以使移动终端建立与辅助服务基站的辅助无线链路连接。
其中， 接收模块 20B还用于接收移动终端发送的辅助无线链路连接的 处理请求消息；
发送模块 21B还用于将辅助无线链路连接的处理请求消息转发给辅助 服务基站；
接收模块 20B还用于接收辅助服务基站返回的辅助无线链路连接的处 理确认消息；
发送模块 21B还用于将辅助无线链路连接的处理确认消息转发给移动 终端， 以使移动终端处理与辅助服务基站的辅助无线链路连接。
其中， 辅助无线链路连接的处理请求消息包括辅助无线链路连接的修 改请求消息、 辅助无线链路连接的释放请求消息、 辅助无线链路连接的重 建请求消息。
本实施例的主服务基站为移动终端提供信令转发服务， 使移动终端增 加了辅助无线链路连接方式， 从而使多个基站同时服务于移动终端， 提高 了移动终端对空口无线资源的利用率。 移动终端能够使用更多的系统无线 资源， 增加了移动终端用户的体验。
图 3为本发明的实施例多基站协作系统的结构示意图， 如图 3所示， 本实施例包括：
移动终端 30, 用于将当前驻留基站作为主服务基站， 并建立与主服务 基站 31的主无线链路连接， 测量所有相邻基站的信号质量， 并将信号质量 超过预设值的相邻基站作为辅助服务基站 32;
主服务基站 31 , 用于建立与移动终端 30的主无线链路连接， 将接收到 的移动终端 30发送的辅助无线链路连接的建立请求消息转发给辅助服务基 站 32,之后将接收到辅助服务基站 32返回的辅助无线链路连接的建立确认 消息转发给移动终端 30, 以使移动终端 30建立与辅助服务基站 32的辅助 无线链路连接；
辅助服务基站 32,用于接收主服务基站 31发送的辅助无线链路连接的 建立请求消息，并向主服务基站 31返回辅助无线链路连接的建立确认消息。
其中， 主服务基站 31还用于将接收到的移动终端 30发送的辅助无线 链路连接的处理请求消息转发给辅助服务基站 32, 之后将接收到的辅助服 务基站 32返回的辅助无线链路连接的处理确认消息转发给移动终端 30,以 使移动终端 30处理与辅助服务基站 32的辅助无线链路连接。
本实施例的多基站协作系统中， 移动终端增加了辅助无线链路连接方 式， 能够使多个基站同时服务于移动终端， 提高了移动终端对空口无线资 源的利用率。 移动终端能够使用更多的系统无线资源， 增加了移动终端用 户的体马全。
下面结合图 3 所示的多基站协作系统， 对本发明实施例的多基站协作 方法作进一步的详细描述：
本发明实施例将参与协作的基站分为两类： 主服务基站与辅助服务基 站。 将移动终端与所有参与协作基站的无线连接分为两类： 主无线链路连 接和辅助无线链路连接。 主服务基站只能是一个服务基站， 一般为移动终 端当前驻留基站， 辅助服务基站可以是大于等于零个基站。 对于移动终端 来讲只要接入到网络中就必须要有一个主服务基站， 主服务基站与辅助服 务基站之间在地理位置上是相邻的或是同覆盖的， 而且主服务基站与辅助 服务基站之间要有逻辑链路连接， 包括 X2接口和 eNodeB内部接口。
移动终端与主服务基站建立的无线连接链路称为主无线链路连接， 与 辅助服务基站建立的无线连接称为辅助无线链路连接。 辅助无线链路连接 的修改要通过主无线链路连接进行建立、 修改、 释放和重建。 主无线链路 连接与辅助无线链路之间可以进行转换， 转换过程中的信令流程要通过主 无线链路连接进行转换。 主无线链路连接是较为稳定和长期维护的无线链 路， 当移动终端从主服务基站移动到辅助服务基站时， 终端先前与辅助服 务基站建立的辅助无线链路连接将转换为主无线链路连接。
为了节约移动终端的上行发射功率， 可以将距离终端较远的辅助服务 基站的辅助无线链路配置成只有下行业务信道数据连接。 如果辅助服务基 站能够接收到移动终端上行较好的信号， 辅助服务基站可以同时配置成上 下行无线链路连接。
图 4所示为移动终端成功建立与辅助服务基站的辅助无线链路连接的 流程示意图， 如图 4所示， 该流程包括：
步骤 401 : 移动终端与主服务基站建立主无线链路连接；
移动终端将当前驻留基站作为主服务基站， 并与主服务基站建立主无 线链路连接， 建立主无线链路连接的步骤与 LTE中的建立无线链路连接的 过程相同；
步骤 402:移动终端在主无线链路连接上发送辅助无线链路连接的建立 请求消息；
该消息中包含辅助服务基站标识、 终端标识、 请求业务数据的服务质 量（Quality of Service, QoS )参数、 业务信道的配置参数。 移动终端测量 所有相邻基站的参考信号接收功率， 并将参考信号接收功率超过预设值的 相邻基站作为辅助服务基站。 为了节约移动终端的上行发射功率， 可以将 辅助服务基站的辅助无线链路配置成只有下行业务信道数据连接， 在业务 信道的配置参数中只配置下行业务信道的参数， 不包含配置上行业务信道 的参数， 不对上行业务信道进行配置， 同时也可以不为辅助无线链路配置 控制信道参数， 也就是在辅助无线链路连接的建立请求消息中不携带有上 行业务信道参数和控制信道参数；
步骤 403:主服务基站向辅助服务基站发送辅助无线链路连接的建立请 求消息；
该消息中包含辅助服务基站标识、 终端标识、 请求业务数据的 QoS参 数、 业务信道的配置参数；
步骤 404:辅助服务基站向主服务基站发送辅助无线链路连接的建立确 认消息；
辅助服务基站可以根据当前的负载状况、 无线资源的使用情况来向主 服务基站进行响应， 如果是确认可以接受该移动终端进行业务建立， 则辅 助服务基站就发送辅助无线链路连接的建立确认消息；
步骤 405:主服务基站向移动终端发送辅助无线链路连接的建立确认消 息；
主服务基站将该辅助服务基站标记为辅助服务基站， 并向移动终端发 送辅助无线链路连接的建立确认消息；
步骤 406: 移动终端与辅助服务基站建立辅助无线链路连接。
之后移动终端开始接收来自于该辅助服务基站的下行业务数据。
图 5 所示为移动终端未成功建立与辅助服务基站的辅助无线链路连接 的流程示意图， 该流程包括：
步骤 501 : 移动终端与主服务基站建立主无线链路连接；
移动终端将当前驻留基站作为主服务基站， 并与主服务基站建立主无 线链路连接， 建立主无线链路连接的步骤与 LTE中的建立无线链路连接的 过程相同；
步骤 502:移动终端在主无线链路连接上发送辅助无线链路连接的建立 请求消息；
该消息中包含辅助服务基站标识、 终端标识、 请求业务数据的服务质 量（Quality of Service, QoS )参数、 业务信道的配置参数。 移动终端测量 所有相邻基站的参考信号接收功率， 并将参考信号接收功率超过预设值的 相邻基站作为辅助服务基站。 为了节约移动终端的上行发射功率， 可以将 辅助服务基站的辅助无线链路配置成只有下行业务信道数据连接， 在业务 信道的配置参数中只配置下行业务信道的参数， 不包含配置上行业务信道 的参数， 不对上行业务信道进行配置， 同时也可以不为辅助无线链路配置 控制信道参数， 也就是在辅助无线链路连接的建立请求消息中不携带有上 行业务信道参数和控制信道参数；
步骤 503:主服务基站向辅助服务基站发送辅助无线链路连接的建立请 求消息；
该消息中包含辅助服务基站标识、 终端标识、 请求业务数据的 QoS参 数、 业务信道的配置参数；
步骤 504:辅助服务基站向主服务基站发送辅助无线链路连接的建立拒 绝消息；
辅助服务基站可以根据当前的负载状况、 无线资源的使用情况来向主 服务基站进行响应， 如果是确认不能接受该移动终端进行业务建立， 则辅 助服务基站就发送辅助无线链路连接的建立拒绝消息；
步骤 505:主服务基站向移动终端发送辅助无线链路连接的建立拒绝消 息。
图 6所示为移动终端成功修改与辅助服务基站的辅助无线链路连接的 流程示意图， 该流程包括：
步骤 601 :移动终端在主无线链路连接上发送辅助无线链路连接的修改 请求消息；
该消息中包含辅助服务基站标识、 终端标识、 请求业务数据的 QoS参 数、 控制信道的配置参数、 业务信道的配置参数。 如果移动终端不需要配 置控制信道， 则该消息中将不包含控制信道的配置参数。 业务信道配置参 数需要描述相应的上行或下行业务数据的速率。 如果业务信道只配置了下 行业务信道， 可以在业务信道的配置参数中进行描述。 移动终端可以根据 接收到的辅助无线链路连接的信道质量， 推算出辅助无线链路的路损， 如 果该路损小于一个门限值， 则移动终端就可以来配置相应的上行业务信道； 步骤 602:主服务基站向辅助服务基站发送辅助无线链路连接的修改请 求 消息；
该消息中包含辅助服务基站标识、 终端标识、 期望修改的业务数据的
QoS 参数、 期望修改的控制信道的配置参数、 期望修改的业务信道的配置 参数；
步骤 603:辅助服务基站向主服务基站发送辅助无线链路连接的修改确 认消息；
辅助服务基站可以根据当前的负载状况、 无线资源的使用情况来向主 服务基站进行响应， 如果是确认可以接受该移动终端进行业务修改， 则辅 助服务基站就发送辅助无线链路连接的修改确认消息， 该消息中包含辅助 服务基站标识、 终端标识、 确认能够接受的业务数据的 QoS参数、 确认能 够配置的控制信道的配置参数、 确认能够配置的业务信道的配置参数； 步骤 604:主服务基站向移动终端发送辅助无线链路连接的修改确认消 息；
主服务基站向移动终端发送辅助无线链路连接的修改确认消息， 该消 息中包含辅助服务基站标识、 终端标识、 确认能够接受的业务数据的 QoS 参数、 确认能够配置的控制信道的配置参数、 确认能够配置的业务信道的 配置参数；
步骤 605: 移动终端修改与辅助服务基站建立的辅助无线链路连接。 移动终端与该辅助服务基站进行相应的辅助无线链路修改操作。
图 7所示为移动终端未成功修改与辅助服务基站的辅助无线链路连接 的流程示意图， 该流程包括： 步骤 701 :移动终端在主无线链路连接上发送辅助无线链路连接的修改 请求消息；
该消息中包含辅助服务基站标识、 终端标识、 请求业务数据的 QoS参 数、 控制信道的配置参数、 业务信道的配置参数。 如果移动终端不需要配 置控制信道， 则该消息中将不包含控制信道的配置参数。 业务信道配置参 数需要描述相应的上行或下行业务数据的速率。 如果业务信道只配置了下 行业务信道， 可以在业务信道的配置参数中进行描述。 移动终端可以根据 接收到的辅助无线链路连接的信道质量， 推算出辅助无线链路的路损， 如 果该路损小于一个门限值， 则移动终端就可以来配置相应的上行业务信道； 步骤 702:主服务基站向辅助服务基站发送辅助无线链路连接的修改请 求消息；
该消息中包含辅助服务基站标识、 终端标识、 期望修改的业务数据的 QoS 参数、 期望修改的控制信道的配置参数、 期望修改的业务信道的配置 参数；
步骤 703:辅助服务基站向主服务基站发送辅助无线链路连接的修改拒 绝消息；
辅助服务基站可以根据当前的负载状况、 无线资源的使用情况来向主 服务基站进行响应， 如果是确认不能接受该移动终端进行业务修改， 则辅 助服务基站就发送辅助无线链路连接的修改拒绝消息， 该消息中包含辅助 服务基站标识、 终端标识；
步骤 704:主服务基站向移动终端发送辅助无线链路连接的修改拒绝消 息；
主服务基站向移动终端发送辅助无线链路连接的修改拒绝消息， 该消 息中包含辅助服务基站标识、 终端标识；
步骤 705: 移动终端保持与辅助服务基站建立的原有辅助无线链路连 接。
图 8所示为移动终端释放与辅助服务基站的辅助无线链路连接的流程 示意图， 该流程包括：
步骤 801 :移动终端在主无线链路连接上发送辅助无线链路连接的释放 请求消息；
该消息中包含辅助服务基站标识、 终端标识；
步骤 802:主服务基站向辅助服务基站发送辅助无线链路连接的释放请 求消息；
该消息中包含辅助服务基站标识；
步骤 803: 辅助服务基站与移动终端终止辅助无线链路连接； 步骤 804:辅助服务基站向主服务基站发送辅助无线链路连接的释放确 认消息。
在移动终端释放与辅助服务基站的辅助无线链路连接后， 图 9 所示为 移动终端成功重建与辅助服务基站的辅助无线链路连接的流程示意图， 该 流程包括：
步骤 901 :移动终端在主无线链路连接上发送辅助无线链路连接的重建 请求消息；
该消息中包含辅助服务基站标识、终端标识、重建请求业务数据的 QoS 参数、 控制信道的配置参数、 业务信道的配置参数。 如果移动终端不需要 配置控制信道， 则该消息中将不包含控制信道的配置参数。 业务信道配置 参数需要描述相应的上行或下行业务数据的速率。 如果业务信道只配置了 下行业务信道， 可以在业务信道的配置参数中进行描述；
步骤 902:主服务基站向辅助服务基站发送辅助无线链路连接的重建请 求消息；
该消息中包含辅助服务基站标识、 终端标识、 需要重建的业务数据的 QoS 参数、 需要重建的控制信道的配置参数、 需要重建的业务信道的配置 参数；
步骤 903:辅助服务基站向主服务基站发送辅助无线链路连接的重建确 认消息；
辅助服务基站可以根据当前的负载状况、 无线资源的使用情况来向主 服务基站进行响应， 如果是确认可以接受该移动终端进行业务重建， 则辅 助服务基站就发送辅助无线链路连接的重建确认消息， 该消息中包含辅助 服务基站标识、 终端标识、 确认重建的业务数据的 QoS参数、 确认重建的 控制信道的配置参数、 确认重建的业务信道的配置参数；
步骤 904:主服务基站向移动终端发送辅助无线链路连接的重建确认消 息；
主服务基站向移动终端发送辅助无线链路连接的重建确认消息， 该消 息中包含辅助服务基站标识、 终端标识、 重建的业务数据的 QoS参数、 重 建配置的控制信道的配置参数、 重建配置的业务信道的配置参数；
步骤 905:移动终端与该辅助服务基站进行相应的辅助无线链路连接重 建操作；
步骤 906:辅助服务基站向主服务基站发送辅助无线链路连接的重建完 成消息。
该消息中携带辅助服务基站标识、 终端标识。
图 10所示为移动终端未成功重建与辅助服务基站的辅助无线链路连接 的流程示意图， 该流程包括：
步骤 1001 : 移动终端在主无线链路连接上发送辅助无线链路连接的重 建请求消息；
该消息中包含辅助服务基站标识、终端标识、重建请求业务数据的 QoS 参数、 控制信道的配置参数、 业务信道的配置参数。 如果移动终端不需要 配置控制信道， 则该消息中将不包含控制信道的配置参数。 业务信道配置 参数需要描述相应的上行或下行业务数据的速率。 如果业务信道只配置了 下行业务信道， 可以在业务信道的配置参数中进行描述；
步骤 1002: 主服务基站向辅助服务基站发送辅助无线链路连接的重建 请求消息；
该消息中包含辅助服务基站标识、 终端标识、 需要重建的业务数据的 QoS 参数、 需要重建的控制信道的配置参数、 需要重建的业务信道的配置 参数；
步骤 1003: 辅助服务基站向主服务基站发送辅助无线链路连接的重建 拒绝消息；
辅助服务基站可以根据当前的负载状况、 无线资源的使用情况来向主 服务基站进行响应， 如果是确认不能接受该移动终端进行业务重建， 则辅 助服务基站就发送辅助无线链路连接的重建拒绝消息， 该消息中包含辅助 服务基站标识、 终端标识；
步骤 1004: 主服务基站向移动终端发送辅助无线链路连接的重建拒绝 消息；
主服务基站向移动终端发送辅助无线链路连接的重建拒绝消息， 该消 息中包含辅助服务基站标识、 终端标识；
步骤 1005:移动终端取消与该辅助服务基站之间的辅助无线链路连接。 在移动终端已经建立了与当前主服务基站的主无线链路连接， 与辅助 服务基站建立了辅助无线链路连接之后， 如果当移动终端与辅助服务基站 的信道质量好于主服务基站的服务质量时， 比如移动终端测量到辅助基站 的参考信号接收功率大于预设的门限值， 那么移动终端就需要将与辅助服 务基站之间的辅助无线链路连接转换为主无线链路连接。 图 11所示为移动 终端将辅助无线链路连接转换为主无线链路连接的流程示意图， 该流程包 括：
步骤 1101 : 移动终端在主无线链路连接上发送辅助无线链路连接的修 改请求消息；
该消息中需要携带辅助服务基站标识、 终端标识、 控制信道的配置参 数、 业务信道的配置参数、 业务数据的 QoS参数。 除此之外， 还包含有辅 助无线链路连接转换为主无线链路连接的参数；
步骤 1102: 主服务基站向辅助服务基站发送辅助无线链路连接的修改 请求消息；
步骤 1103: 辅助服务基站向主服务基站发送辅助无线链路连接的修改 确认消息；
由辅助服务基站根据当前的负载状况、 以及无线资源的使用情况进行 确认响应。 辅助服务基站向主服务基站发送辅助无线链路连接的修改确认 消息， 该消息中携带辅助服务基站根据能够接收到的参数配置， 对控制信 道的配置参数、 业务信道的配置参数、 业务数据的 QoS参数进行反馈。 辅 助服务基站根据辅助无线链路连接转换为主无线链路连接的参数进行确 认， 在该消息中携带确认参数。 发送完该消息后， 辅助服务基站将自己标 记为主服务基站， 将该辅助无线链路连接标记为主无线链路连接；
步骤 1104: 主服务基站向移动终端发送辅助无线链路连接的修改确认 消息；
该消息中携带辅助无线链路连接修改后的控制信道配置参数、 业务信 道配置参数。 这时主服务基站将自己标记为辅助服务基站。 同时该消息中 还有携带主无线链路连接修改的配置参数， 将先前的主无线链路修改为辅 助无线链路连接的参数， 先前主无线链路连接重新配置的控制信道参数和 业务信道参数；
步骤 1105: 移动终端同时进行主无线链路连接与辅助无线链路连接修 改过程。
本发明实施例提供的技术方案能够协调多个位置分离， 独立运行的基 站之间的协同工作， 引入集中式管理的概念， 将参与协作的基站分为主服 务基站和辅助服务基站， 前者负责所有协同工作的基站的选择、 状态收集、 分析、 调度的指配等内容， 同时进行与用户数据交互， 功能较为复杂； 而 后者主要负责自身状态的交互以及与用户数据交互等内容， 功能较为简单。 而且两者在一定的条件下角色可以互换， 对于不同的用户而言， 同一个基 站可能同时担当两种不同的角色。
本发明实施例为移动终端增加了辅助无线链路连接方式， 能够使多个 基站同时服务于移动终端， 提高了移动终端对空口无线资源的利用率。 移 动终端能够使用更多的系统无线资源， 增加了移动终端用户的体验。
所述方法实施例是与所述装置实施例相对应的， 在方法实施例中未详 细描述的部分参照装置实施例中相关部分的描述即可， 在装置实施例中未 详细描述的部分参照方法实施例中相关部分的描述即可。
本领域普通技术人员可以理解， 实现上述实施例方法中的全部或部分 步骤是可以通过程序来指令相关的硬件来完成， 所述的程序可以存储于一 计算机可读取存储介质中， 该程序在执行时， 包括如上述方法实施例的步 骤，所述的存储介质，如：磁碟、光盘、只读存储记忆体（Read-Only Memory, ROM )或随机存储记忆体 ( Random Access Memory, RAM )等。
在本发明各方法实施例中， 所述各步骤的序号并不能用于限定各步骤 的先后顺序， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提 下， 对各步骤的先后变化也在本发明的保护范围之内。
以上所述是本发明的优选实施方式， 应当指出， 对于本技术领域的普 通技术人员来说， 在不脱离本发明所述原理的前提下， 还可以作出若干改 进和润饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

权利要求书
1. 一种多基站协作方法， 其特征在于， 该方法包括：
移动终端将当前驻留基站作为主服务基站， 并建立与所述主服务基站 的主无线链路连接；
所述移动终端测量所有相邻基站的信号质量， 并将信号质量超过预设 值的相邻基站作为辅助服务基站；
所述移动终端建立与所述辅助服务基站的辅助无线链路连接。
2. 根据权利要求 1所述的多基站协作方法， 其特征在于， 所述移动终 端建立与所述辅助服务基站的辅助无线链路连接包括：
所述移动终端经所述主服务基站向所述辅助服务基站发送辅助无线链 路连接的建立请求消息， 所述辅助无线链路连接的建立请求消息中携带辅 助服务基站标识、 终端标识、 请求业务数据的服务质量参数和业务信道的 配置参数；
所述移动终端接收所述主服务基站返回的辅助无线链路连接的建立确 认消息， 所述辅助无线链路连接的建立确认消息为所述辅助服务基站在接 收到所述辅助无线链路连接的建立请求消息后发送至所述主服务基站的消 息。
3. 根据权利要求 1所述的多基站协作方法， 其特征在于， 所述移动终 端建立与所述辅助服务基站的辅助无线链路连接之后， 该方法还包括： 所述移动终端处理与所述辅助服务基站建立的辅助无线链路连接； 所述移动终端处理与所述辅助服务基站建立的辅助无线链路连接包 括：
所述移动终端经所述主服务基站向所述辅助服务基站发送辅助无线链 路连接的处理请求消息；
所述移动终端接收所述主服务基站返回的辅助无线链路连接的处理确 认消息。
4. 一种多基站协作方法， 其特征在于， 该方法包括：
主服务基站接收移动终端发送的辅助无线链路连接的建立请求消息， 并将所述辅助无线链路连接的建立请求消息转发给辅助服务基站；
所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的建 立确认消息， 并将所述辅助无线链路连接的建立确认消息转发给所述移动 终端， 以使所述移动终端建立与所述辅助服务基站的辅助无线链路连接。
5. 根据权利要求 4所述的多基站协作方法， 其特征在于， 所述主服务 基站接收所述辅助服务基站返回的辅助无线链路连接的建立确认消息， 并 将所述辅助无线链路连接的建立确认消息转发给所述移动终端之后， 该方 法还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的处理请求消 息， 并将所述辅助无线链路连接的处理请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的处 理确认消息， 并将所述辅助无线链路连接的处理确认消息转发给所述移动 终端， 以使所述移动终端处理与所述辅助服务基站的辅助无线链路连接。
6. 根据权利要求 5所述的多基站协作方法， 其特征在于， 所述辅助无 线链路连接的处理请求消息包括所述辅助无线链路连接的修改请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的建立确 认消息， 并将所述辅助无线链路连接的建立确认消息转发给所述移动终端 之后还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的修改请求消 息， 并将所述辅助无线链路连接的修改请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的修 改确认消息， 并将所述辅助无线链路连接的修改确认消息转发给所述移动 终端， 以使所述移动终端修改与所述辅助服务基站的辅助无线链路连接。
7. 根据权利要求 5所述的多基站协作方法， 其特征在于， 所述辅助无 线链路连接的处理请求消息包括所述辅助无线链路连接的释放请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的建立确 认消息， 并将所述辅助无线链路连接的建立确认消息转发给所述移动终端 之后， 该方法还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的释放请求消 息， 并将所述辅助无线链路连接的释放请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的释 放确认消息， 并将所述辅助无线链路连接的释放确认消息转发给所述移动 终端， 以使所述移动终端释放与所述辅助服务基站的辅助无线链路连接。
8. 根据权利要求 7所述的多基站协作方法， 其特征在于， 所述辅助无 线链路连接的处理请求消息包括所述辅助无线链路连接的重建请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的释放确 认消息， 并将所述辅助无线链路连接的释放确认消息转发给所述移动终端 之后， 该方法还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的重建请求消 息， 并将所述辅助无线链路连接的重建请求消息转发给所述辅助服务基站； 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的重 建确认消息， 并将所述辅助无线链路连接的重建确认消息转发给所述移动 终端， 以使所述移动终端重建与所述辅助服务基站的辅助无线链路连接。
9. 根据权利要求 5所述的多基站协作方法， 其特征在于， 所述辅助无 线链路连接的处理请求消息包括所述辅助无线链路连接的修改请求消息， 所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的建立确 认消息， 并将所述辅助无线链路连接的建立确认消息转发给所述移动终端 之后， 该方法还包括：
所述主服务基站接收移动终端发送的辅助无线链路连接的修改请求消 息， 并将所述辅助无线链路连接的修改请求消息转发给所述辅助服务基站， 所述辅助无线链路连接的修改请求消息中携带有辅助服务基站标识、 终端 标识、 控制信道的配置参数、 业务信道的配置参数、 业务数据的服务质量 参数和辅助无线链路连接转换为主无线链路连接的参数；
所述主服务基站接收所述辅助服务基站返回的辅助无线链路连接的修 改确认消息， 并将所述辅助无线链路连接的修改确认消息转发给所述移动 终端， 以使所述移动终端建立与所述辅助服务基站的主无线链路连接。
10. 一种移动终端， 其特征在于， 该移动终端包括： 选择模块、 建立 模块和测量模块； 其中，
所述选择模块， 用于将当前驻留基站作为主服务基站；
所述建立模块， 用于与所述主服务基站建立主无线链路连接； 所述测量模块， 用于测量所有相邻基站的信号质量；
所述选择模块还用于将信号质量超过预设值的相邻基站作为辅助服务 基站；
所述建立模块还用于建立与所述辅助服务基站的辅助无线链路连接。
11. 根据权利要求 10所述的移动终端， 其特征在于， 所述建立模块包 括： 发送子模块和接收子模块； 其中，
所述发送子模块， 用于经所述主服务基站向所述辅助服务基站发送辅 助无线链路连接的建立请求消息， 所述辅助无线链路连接的建立请求消息 中携带有辅助服务基站标识、 终端标识、 请求业务数据的服务质量参数和 业务信道的配置参数；
所述接收子模块， 用于接收所述主服务基站返回的辅助无线链路连接 的建立确认消息， 所述辅助无线链路连接的建立确认消息为所述辅助服务 基站在接收到所述辅助无线链路连接的建立请求消息后发送至所述主服务 基站的消息。
12. 根据权利要求 10所述的移动终端， 其特征在于，
所述建立模块， 还用于处理与所述辅助服务基站建立的辅助无线链路 连接；
所述发送子模块， 还用于经所述主服务基站向所述辅助服务基站发送 辅助无线链路连接的处理请求消息；
所述接收子模块， 还用于接收所述主服务基站返回的辅助无线链路连 接的处理确认消息。
13. 一种主服务基站， 其特征在于， 该主服务基站包括： 接收模块和 发送模块； 其中，
所述接收模块， 用于接收移动终端发送的辅助无线链路连接的建立请 求消息；
所述发送模块， 用于将所述辅助无线链路连接的建立请求消息转发给 辅助服务基站；
所述接收模块， 还用于接收所述辅助服务基站返回的辅助无线链路连 接的建立确认消息；
所述发送模块， 还用于将所述辅助无线链路连接的建立确认消息转发 给所述移动终端， 以使所述移动终端建立与所述辅助服务基站的辅助无线 链路连接。
14. 根据权利要求 13所述的主服务基站， 其特征在于，
所述接收模块， 还用于接收移动终端发送的辅助无线链路连接的处理 请求消息；
所述发送模块， 还用于将所述辅助无线链路连接的处理请求消息转发 给所述辅助服务基站； 所述接收模块， 还用于接收所述辅助服务基站返回的辅助无线链路连 接的处理确认消息；
所述发送模块， 还用于将所述辅助无线链路连接的处理确认消息转发 给所述移动终端， 以使所述移动终端处理与所述辅助服务基站的辅助无线 链路连接。
15. 一种多基站协作系统， 其特征在于， 该系统包括： 移动终端、 主 服务基站和辅助服务基站； 其中，
所述移动终端， 用于将当前驻留基站作为主服务基站， 并建立与所述 主服务基站的主无线链路连接， 测量所有相邻基站的信号质量， 并将信号 质量超过预设值的相邻基站作为辅助服务基站；
所述主服务基站， 用于建立与移动终端的主无线链路连接， 将接收到 的所述移动终端发送的辅助无线链路连接的建立请求消息转发给所述辅助 服务基站， 之后将接收到所述辅助服务基站返回的辅助无线链路连接的建 立确认消息转发给所述移动终端， 以使所述移动终端建立与所述辅助服务 基站的辅助无线链路连接；
所述辅助服务基站， 用于接收所述主服务基站发送的辅助无线链路连 接的建立请求消息， 并向所述主服务基站返回辅助无线链路连接的建立确 认消息。
16. 根据权利要求 15所述的多基站协作系统， 其特征在于， 所述主服务基站， 还用于将接收到的所述移动终端发送的辅助无线链 路连接的处理请求消息转发给所述辅助服务基站， 之后将接收到所述辅助 服务基站返回的辅助无线链路连接的处理确认消息转发给所述移动终端， 以使所述移动终端处理与所述辅助服务基站的辅助无线链路连接。
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