WO2016169216A1 - 一种多连接通信的分布式协调方法和装置 - Google Patents

一种多连接通信的分布式协调方法和装置 Download PDF

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Publication number
WO2016169216A1
WO2016169216A1 PCT/CN2015/091303 CN2015091303W WO2016169216A1 WO 2016169216 A1 WO2016169216 A1 WO 2016169216A1 CN 2015091303 W CN2015091303 W CN 2015091303W WO 2016169216 A1 WO2016169216 A1 WO 2016169216A1
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connection
base station
connected base
information
user
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PCT/CN2015/091303
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English (en)
French (fr)
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邹伟
刘旭
谢峰
戴谦
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • This paper relates to the field of multi-connection communication technologies, and in particular, to a distributed coordination method and apparatus for multi-connection communication.
  • inter-machine communication MTC
  • ultra-dense network UDN
  • CRS common reference signals
  • the inter-cell coordination switch is often required in the UDN, that is, the partial cell base station is turned off at a certain time to reduce interference, and the other part of the cell base station is turned off at another time.
  • an ideal backhaul link can be used to interact with the traffic information in real time, and centralized control of each cell switch is performed according to the service traffic information.
  • the ideal backhaul link greatly increases the deployment cost of the backhaul network. It is difficult to achieve ideal backhaul in all coverage scenarios in actual network deployment.
  • the interference coordination mode of the cell switch according to the pattern (hereinafter referred to as the pattern switch mode) is often adopted, that is, each cell performs the cell signal according to a certain pattern. Switch, Thereby reducing interference between cells.
  • the specific switch pattern may be uniformly allocated by the central node, or may be generated by each cell and its neighboring cells through negotiation according to the detected interference condition.
  • Each unit time period in which the cell switch is performed in the pattern may be from one wireless subframe to multiple wireless subframes, and the control duration of the entire pattern (ie, the entire switch pattern period) depends on the actual length of the switch pattern used, and may be from several Ms to tens, hundreds, thousands of ms, or even longer. In this way, the interaction of the relevant control information between the cells can be performed according to the actual delay condition of the backhaul link, and a non-periodic or periodic switch control pattern of a corresponding length is generated.
  • the unit time granularity of performing the cell switch once is referred to as a unit time period of the pattern switch, and the length thereof may be one or more subframes.
  • the subframe length is 1 ms in the legacy LTE system and less than 1 ms in the future 5G system.
  • the present invention uses one subframe as the unit time period of the pattern switch in the following description, the subframe in the open state is referred to as the ON subframe, and the subframe in the closed state is referred to as the OFF subframe.
  • the pattern switching mode can effectively perform interference coordination in the case where the backhaul link is not ideal, it also limits the peak rate of the user to some extent. This is because the cell is in an OFF state in a part of the subframe segment, and the user cannot use this portion of the subframe for data transmission.
  • a multi-connection data transmission scheme can be sampled, that is, the user simultaneously establishes multiple connections with a plurality of adjacent cell base stations, and uses different connections for data transmission at different switch unit times. In this way, the user can use all the sub-frames for data transmission, which greatly increases the peak rate of transmission.
  • the multi-connection communication method can be implemented only by using one set of wireless devices, without increasing the cost of the user terminal, and the inter-frequency dual connection discussed with 3GPP The solution is completely different.
  • the multi-connection scheme can keep the user and multiple access points connected. Even if a single wireless link is suddenly interrupted, the user can still use other links for data transmission, which improves the reliability of user service transmission.
  • the previously discussed multi-connection data transmission method does not consider the specific implementation method in the pattern switch mode. Moreover, since the user has only one set of wireless transceiver devices, data communication can only be performed with one base station or a transmission point (TP) in a single time, so it is necessary to coordinate the operation of each connection of the multi-connection user in the pattern switch mode.
  • TP transmission point
  • the technical problem to be solved by the present invention is to provide a distributed coordination method and apparatus for multi-connection communication to coordinate the operation of a multi-connection user on each connection in a pattern switch mode.
  • the present invention provides the following technical solutions:
  • a distributed coordination method for multi-connection communication comprising:
  • the main connection control point acquires a switch pattern of a plurality of connected base stations of the multi-connection user, and determines, according to the acquired switch patterns of the plurality of connected base stations, a subframe configuration corresponding to each connection of the multi-connection user And notifying all connected base stations of the multi-connection user of the subframe configuration information corresponding to each connection of the multi-connection user.
  • the method further includes:
  • the primary connection control point is determined as follows:
  • connection information of each connected base station from a plurality of the connected base stations of the multi-connection user;
  • a plurality of the connected base stations select one of the base stations as the primary connection control point according to the obtained connection information.
  • connection information includes at least one of the following information:
  • the channel quality information of the connection The channel quality information of the connection, the stability information of the connected channel, and the characteristic information of the base station.
  • the feature information of the base station includes at least one of the following information:
  • the quality information of the base station backhaul link The quality information of the base station backhaul link, the bandwidth information of the base station backhaul link, the mobility information of the base station, the power information of the base station, and the processing capability information of the base station.
  • the step of obtaining connection information of each connected base station from the plurality of connected base stations of the multi-connection user includes:
  • connection information of each connected base station from a plurality of the connected base stations of the multi-connection user;
  • connection information of each connected base station from a plurality of the connected base stations of the multi-connection user.
  • the step of acquiring, by one of the plurality of connected base stations of the multi-connection user, the connection information of each connected base station from the plurality of connected base stations of the multi-connection user comprises:
  • the step of selecting, by the plurality of connected base stations, one of the base stations as the primary connection control point according to the obtained connection information includes:
  • a plurality of the connected base stations make a decision according to the obtained connection information, and determine one of the base stations as the primary connection control point.
  • the method further includes:
  • the primary connection control point sends the subframe configuration information to the multi-connection user.
  • a distributed coordination method for multi-connection communication comprising:
  • a connected base station of the multi-connection user acquires the local subframe configuration information of the multi-connection user, and schedules the service of the multi-connection user according to the obtained subframe configuration information.
  • the step of the connected base station acquiring the subframe configuration information of the multi-connection user locally includes:
  • the connected base station receives the local subframe configuration information of the multi-connection user sent by the primary connection control point; or
  • the connected base station acquires connection information of other connected base stations of the multi-connection user, and determines subframe configuration information of the multi-connection user locally according to the connection information.
  • connection information includes at least one of the following information:
  • the channel quality information of the connection The channel quality information of the connection, the stability information of the connected channel, and the characteristic information of the base station.
  • the feature information of the base station includes at least one of the following information: quality information of a base station backhaul link, bandwidth information of a base station backhaul link, mobility information of the base station, power information of the base station, and processing of the base station. Capability information.
  • the step of the connected base station acquiring the connection information of the other connected base stations of the multi-connection user includes:
  • the connected base station periodically acquires connection information of other connected base stations of the multi-connection user;
  • the connected base station actively triggers, or accepts triggering by any connected base station of the other connected base stations, and acquires connection information of other connected base stations of the multi-connection user.
  • the step of the connected base station actively triggering, or accepting the trigger of any connected base station of the other connected base station, and acquiring the connection information of the other connected base stations of the multi-connection user includes:
  • the switch pattern of the connected base station or any connected base station of the connected base station changes;
  • the variation value of the characteristic value of the connected base station or any connected base station of the connected base station exceeds a preset threshold
  • the method further includes:
  • the connected base station acquires subframe configuration information of all connected base stations of the multi-connection user, and sends subframe configuration information of all connected base stations to the multi-connection user.
  • the method further includes:
  • the connected base station receives a subframe allocation acknowledgement message of the multi-connection user.
  • a distributed coordination device for multi-connection communication which is located in a connected base station of a multi-connection user, comprising a first acquisition module, a determination module and a first transmission module, wherein:
  • the first obtaining module is configured to: acquire a switch pattern of a plurality of connected base stations of a multi-connected user;
  • the determining module is configured to: determine, according to a switch pattern of the plurality of connected base stations, subframe configuration information corresponding to each connection of the multi-connection user;
  • the first sending module is configured to: notify all connected base stations of the multi-connection user of subframe configuration information corresponding to each connection of the multi-connection user.
  • the first acquiring module is configured to: obtain connection information of each connected base station from a plurality of the connected base stations of the multi-connection user;
  • the determining module is further configured to select one of the base stations as a primary connection control point according to the acquired connection information, together with other base stations other than the base station where the coordination device is located.
  • connection information includes at least one of the following information:
  • the channel quality information of the connection The channel quality information of the connection, the stability information of the connected channel, and the characteristic information of the base station.
  • the feature information of the base station includes at least one of the following information:
  • the quality information of the base station backhaul link The quality information of the base station backhaul link, the bandwidth information of the base station backhaul link, the mobility information of the base station, the power information of the base station, and the processing capability information of the base station.
  • the first obtaining module is configured to obtain connection information of each connected base station from a plurality of the connected base stations of the multi-connection user as follows:
  • connection information of each connected base station from a plurality of the connected base stations of the multi-connection user;
  • connection information of each connected base station from a plurality of the connected base stations of the multi-connection user.
  • the first obtaining module is configured to trigger, by one of the plurality of connected base stations of the multi-connection user, to acquire each of the plurality of connected base stations of the multi-connection user according to the following manner Connection information of connected base stations:
  • connection information of each connected base station from a plurality of the connected base stations of the multi-connection user.
  • the determining module is configured to select one of the base stations as the primary connection control point according to the acquired connection information, together with other base stations other than the base station where the coordination device is located, as follows:
  • a plurality of the connected base stations make a decision according to the obtained connection information, and determine one of the base stations as the primary connection control point.
  • the device further includes a second sending module, where:
  • the second sending module is configured to: send the subframe configuration information to the multi-connection user.
  • a distributed coordination device for multi-connection communication located in a connected base station of a multi-connection user, comprising a second acquisition module and a scheduling module, wherein:
  • the second obtaining module is configured to: acquire subframe configuration information that is locally local to the multi-connection user;
  • the scheduling module is configured to: schedule, according to the obtained subframe configuration information, the service of the multi-connection user.
  • the second obtaining module is configured to obtain, according to the manner, the subframe configuration information of the multi-connection user locally:
  • connection information of other connected base stations of the multi-connection user and according to the connection information, Determining the subframe configuration information of the multi-connection user locally.
  • connection information includes at least one of the following information:
  • the channel quality information of the connection The channel quality information of the connection, the stability information of the connected channel, and the characteristic information of the base station.
  • the feature information of the base station includes at least one of the following information:
  • the quality information of the base station backhaul link The quality information of the base station backhaul link, the bandwidth information of the base station backhaul link, the mobility information of the base station, the power information of the base station, and the processing capability information of the base station.
  • the second obtaining module is configured to obtain connection information of other connected base stations of the multi-connection user according to the following manner:
  • the acquiring module actively acquires, or accepts triggers of any connected base stations of other connected base stations, and acquires connection information of other connected base stations of the multi-connection user.
  • the acquiring module is configured to actively acquire, or accept triggering by any connected base station of the connected base station, to obtain connection information of other connected base stations of the multi-connection user:
  • the acquiring module actively acquires, or accepts triggers of any connected base stations of other connected base stations, and acquires connection information of other connected base stations of the multi-connection user.
  • the device further includes a third sending module, where:
  • the third sending module is configured to: send local subframe configuration information to the multi-connection user; or send the obtained subframe configuration information of all connected base stations of the multi-connection user to the multi-connection user.
  • the device further includes a receiving module, wherein:
  • the receiving module is configured to: receive a subframe allocation confirmation message of the multi-connection user.
  • the embodiment provided by the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point communication to improve the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user.
  • FIG. 1 is a flowchart of a distributed coordination method for multi-connection communication according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another method for distributed coordination of multi-connection communication according to an embodiment of the present invention
  • UDN ultra-dense network
  • FIG. 4 is a schematic diagram of a user performing multi-connection communication in the network shown in FIG. 3 according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for master-slave coordination of multi-connection communication according to an embodiment of the present disclosure
  • FIG. 6 is a flowchart of a distributed coordination method for multi-connection communication according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of another distributed coordination method of multi-connection communication according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of a distributed coordination apparatus for multi-connection communication according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of another distributed coordination apparatus for multi-connection communication according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for distributed coordination of multi-connection communication according to an embodiment of the present invention. As shown in FIG. 1 , the method includes:
  • Step 101 The primary connection control point acquires a switch pattern of each connected base station of the same multi-connection user
  • Step 102 The primary connection control point determines, according to a switch pattern of the multiple connected base stations, subframe configuration information corresponding to the connection of the multi-connection user at each connected base station;
  • Step 103 The primary connection control point notifies all connected base stations of subframe configuration information corresponding to the connection of each connected base station.
  • the method provided by the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point to communicate, thereby improving the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user.
  • FIG. 2 is a flowchart of another method for distributed coordination of multi-connection communication according to an embodiment of the present invention. As shown in FIG. 2, the method includes:
  • Step 201 The connected base station of the multi-connection user acquires the subframe configuration information corresponding to the multi-connection user locally;
  • Step 202 The connected base station schedules services of the multi-connection user according to the obtained subframe configuration information.
  • the method provided by the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point to communicate, thereby improving the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user.
  • FIG. 3 is an ultra-dense network (Ultra-Dense) of a working mode of a pattern switch according to an embodiment of the present invention; Schematic diagram of Network, UDN).
  • UDN Ultra-dense network
  • the macro base station coverage can provide a wide range of radio link support, but the quality of the link is affected by the long transmission distance; each small base station provides a better wireless link for the terminal, and is used to enhance the network. capacity.
  • the interference coordination mode of the cell switch according to the pattern is often adopted.
  • a pattern switching mode that is, each cell performs cell signal switching according to a certain pattern, thereby reducing interference between cells.
  • the right side of the figure shows an example of the switch pattern for each small cell.
  • the switch patterns of different small cells are different, but they are synchronous in time and are composed of multiple unit time segments.
  • each cell can determine its own switching state according to the pattern.
  • the specific switch pattern may be uniformly allocated by the central node, or may be generated by each cell and its neighboring cells through negotiation according to the detected interference condition.
  • the unit time period for performing the cell switch in the pattern may be from one millisecond (ms) subframe to multiple 10 ms radio frames, and the control duration of the entire pattern (ie, the entire switch pattern period) depends on the actual length of the switch pattern, and may be from several Ms to tens, hundreds, thousands of ms, or even longer. In this way, the interaction of the relevant control information between the cells can be performed according to the actual delay condition of the backhaul link, and a non-periodic or periodic switch control pattern of a corresponding length is generated.
  • FIG. 4 is a schematic diagram of a user performing multi-connection communication in the network shown in FIG. 3 according to an embodiment of the present invention.
  • the pattern switching mode can effectively perform interference coordination in the case where the backhaul link is not ideal, the peak rate of the user is also limited to some extent. This is because each cell is in an OFF state in a part of the sub-frame segments, and the user cannot use this sub-frame for data transmission.
  • a multi-connection data transmission scheme can be adopted, that is, the user establishes multiple connections simultaneously with a plurality of adjacent cell base stations, and uses different connections for data transmission at different switch unit times.
  • user A establishes multiple connections with base stations 2, 3, and 4 at the same time.
  • the user A can use different connections for data transmission at different times. In this way, the user can perform data transmission in all subframes, which greatly increases the peak rate of single-user transmission.
  • user A communicates with subframes #1, #3, #5 and base station 2; communicates with subframes #1, #2, #4, #6 and base station 3; in subframes #2, #4, #6 communicates with base station 4.
  • each cell of the UDN uses a channel of the same frequency point, this multi-connection is The communication method of the sub-network can be realized only by using one set of wireless devices without increasing the cost of the user terminal.
  • FIG. 5 is a flow chart of a master-slave coordination method for multi-connection communication provided by the present invention.
  • the master-slave coordination method of multi-connection communication one and only one node of each connected base station is a primary connection control point, and the other connected base stations are slave connection control points.
  • the master-slave coordination method for multi-connection communication in the pattern switch mode provided in the embodiment of the present invention is implemented as follows:
  • Step 1 A plurality of connected base stations of a user exchange mutual switch patterns and multi-connection related information
  • the multi-connection related information may include at least one of: channel quality information of each connection, stability information of each connection channel, and feature information of each connected base station;
  • the feature information of each connected base station includes at least one of: quality information of a base station backhaul link, bandwidth information of a base station backhaul link, mobility information of the base station, power information of the base station, and processing capability information of the base station. .
  • the interaction process may be performed periodically or triggered by one of the connected base stations.
  • the switch pattern of a connected base station changes; or the variation value of the eigenvalue of a connected base station exceeds a preset threshold; or the eigenvalue of a connected base station satisfies a preset condition
  • the switch pattern of a connected base station changes; or the variation value of the eigenvalue of a connected base station exceeds a preset threshold; or the eigenvalue of a connected base station satisfies a preset condition
  • Step 2 The plurality of connected base stations complete selection of a primary connection control point by negotiation or local decision.
  • the connected base stations may be sorted according to the information exchanged in step 1 (such as channel quality or channel stability of each connection, etc.), and the optimal node is selected as the primary connection control point of the multi-connection user, and other nodes are set to From the connection control point.
  • the selecting process may select, according to the connection information, a predetermined connected base station in at least two connected base stations to determine one of the base stations as a primary connection control point; or the at least two connected base stations according to the The connection information is respectively determined at each connected base station, and one of the base stations is determined as a primary connection control point.
  • Step 3 The main connection control point (such as the connected base station A in Figure 5) is connected according to the switch pattern.
  • Subframe allocation that is, determining the subframe number that the user belongs to each connection, and notifying the plurality of connected base stations of related information.
  • each connection subframe allocation may further be based on the foregoing multi-connection related information, including at least one of: channel quality information of each connection, stability information of each connection channel, and feature information of each connected base station;
  • the feature information of each connected base station includes at least one of: quality information of a base station backhaul link, bandwidth information of a base station backhaul link, mobility information of the base station, power information of the base station, and processing capability information of the base station. .
  • Step 4 The primary connection control point (such as the connected base station A in FIG. 5) sends the updated subframe configuration information to the multi-connection user, so that the user performs subsequent communication of each connection according to the relevant configuration information.
  • the primary connection control point such as the connected base station A in FIG. 5
  • the user can conveniently utilize the frame resources according to the subframe configuration information, thereby improving the resource utilization.
  • the method further includes: the connected base station receiving the multi-connection user subframe allocation confirmation message.
  • the connected base station sends the subframe configuration to the multi-connection user by sending a “multi-connection user subframe allocation” message, and confirms the message by determining whether the “multi-connection user subframe allocation acknowledgement” message fed back by the user is received. Correct reception.
  • RRC Radio Resource Control
  • RRC Radio Resource Control
  • Step 5 The plurality of connected base stations perform service scheduling of the user according to the allocated subframe number. Then, the user performs data communication according to the scheduling information of the connected base station.
  • the method provided in the first embodiment of the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point to communicate, and improve the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user.
  • the master-slave mode is used for coordinated management, which facilitates the management of multiple connected base stations as a whole.
  • FIG. 6 is a flow chart of a distributed coordination method for multi-connection communication provided by the present invention. Such as shown in the figure, in the distributed coordination method, the status of each connected base station is equal.
  • the distributed coordination method of multi-connection communication in the pattern switch mode provided in the embodiment of the present invention is implemented as follows:
  • Step 1 A connected base station of a user interacts with each other's switch pattern and multi-connection related information
  • the multi-connection related information may include at least one of: channel quality information of each connection, stability information of each connection channel, and feature information of each connected base station;
  • the feature information of each connected base station includes at least one of: quality information of a base station backhaul link, bandwidth information of a base station backhaul link, mobility information of the base station, power information of the base station, and processing capability information of the base station. .
  • the interaction process may be performed periodically or triggered by one of the connected base stations.
  • the switch pattern of a connected base station changes; or the variation value of the eigenvalue of a connected base station exceeds a preset threshold; or the eigenvalue of a connected base station satisfies a preset condition
  • the switch pattern of a connected base station changes; or the variation value of the eigenvalue of a connected base station exceeds a preset threshold; or the eigenvalue of a connected base station satisfies a preset condition
  • Step 2 Each connected base station directly performs local subframe self-configuration according to a unified algorithm according to the information obtained by the interaction.
  • Step 3 Each connected base station sends the updated subframe configuration information to the multi-connection user, so that the user performs subsequent communication of each connection according to the relevant configuration information.
  • Step 4 Each connected base station performs service scheduling of the user according to the self-configured subframe number. The user then performs data communication according to the scheduling information of the connected base station.
  • the method provided in the second embodiment of the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point to communicate, and improve the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user. Each connected base station determines the subframe configuration information itself to implement coordinated management of the multi-connection communication.
  • FIG. 7 is a flow chart of another distributed coordination method of multi-connection communication provided by the present invention.
  • the base station configuration information base station that each base station determines is connected to the connected base station A, and then uniformly sent by the connected base station A to the multi-connection user, where steps 1, 2, and 4 are performed.
  • steps 1, 2, and 4 are performed.
  • the method provided in the third embodiment of the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point to communicate, and improve the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user. Each connected base station determines the subframe configuration information itself to implement coordinated management of the multi-connection communication.
  • the connected base station may also send the local subframe configuration information to the multi-connection user; or the connected base station acquires the subframe of each connected base station of the multi-connection user.
  • the configuration information is sent to the multi-connection user of the subframe configuration information of each connected base station.
  • sending the subframe configuration information to the multi-connection user can facilitate the user to fully utilize the frame resource according to the subframe configuration information, thereby improving the resource utilization.
  • the method further includes:
  • the connected base station receives the multi-connection user subframe allocation acknowledgement message.
  • the connected base station sends the subframe configuration to the multi-connection user by sending a “multi-connection user subframe allocation” message, and confirms the message by determining whether the “multi-connection user subframe allocation acknowledgement” message fed back by the user is received. Correct reception.
  • RRC Radio Resource Control
  • RRC Radio Resource Control
  • FIG. 8 is a structural diagram of a distributed coordination apparatus for multi-connection communication according to an embodiment of the present invention.
  • the structure shown in Figure 8 includes:
  • the first obtaining module 801 is configured to: acquire a switch pattern of each connected base station of the same multi-connection user;
  • the determining module 802 is configured to: determine, according to the switch pattern of each connected base station, subframe configuration information corresponding to the connection of the multi-connection user at each connected base station;
  • the first sending module 803 is configured to notify each connected base station of the subframe configuration information corresponding to the connection of each connected base station.
  • the device is obtained by the following methods, including:
  • the at least two connected base stations select one of the base stations as a primary connection control point according to the connection information.
  • the connection information includes at least one of: channel quality information of each connection, stability information of each connection channel, and feature information of each connected base station.
  • the feature information of each connected base station includes at least one of: quality information of a base station backhaul link, bandwidth information of a base station backhaul link, mobility information of the base station, power information of the base station, and processing capability information of the base station. .
  • connection information of the other connected base stations of the multi-connected user in each connected base station of the same multi-connection user is performed periodically; or, by the at least two connected base stations One of the triggers.
  • connection information of the other connected base stations of the multi-connection user in each connected base station of the same multi-connection user including:
  • the switch pattern of a connected base station changes; or,
  • the variation of the characteristic value of a connected base station exceeds a preset threshold
  • the eigenvalue of a connected base station satisfies the pre-set condition.
  • the at least two connected base stations select one of the base stations as the primary connection control point according to the connection information, and the method includes:
  • the at least two connected base stations respectively perform determinations at the respective connected base stations according to the connection information, and determine one of the base stations as a primary connection control point.
  • the device further comprises:
  • the second sending module is configured to: send the subframe configuration information to the multi-connection user.
  • the device provided by the embodiment of the invention coordinates the operation of multiple connections in the pattern switch mode, and uses Users can make full use of their multiple connections with multiple points to communicate, increasing the gain of multiple connections. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user.
  • FIG. 9 is a structural diagram of another distributed coordination apparatus for multi-connection communication according to an embodiment of the present invention.
  • the device shown in Figure 9 includes:
  • the second obtaining module 901 is configured to: obtain subframe configuration information corresponding to the multi-connection user locally;
  • the scheduling module 902 is configured to: schedule, according to the obtained subframe configuration information, the service of the multi-connection user.
  • the second acquiring module is specifically configured to:
  • the connection information includes at least one of: channel quality information of each connection, stability information of each connection channel, and feature information of each connected base station.
  • the feature information of each connected base station includes at least one of: quality information of a base station backhaul link, bandwidth information of a base station backhaul link, mobility information of the base station, power information of the base station, and processing capability information of the base station. .
  • connection information of the other connected base stations of the multi-connected user in each connected base station of the same multi-connection user is performed periodically; or, by the at least two connected base stations One of the triggers.
  • connection information of the other connected base stations of the multi-connection user in each connected base station of the same multi-connection user including:
  • the switch pattern of a connected base station changes; or,
  • the variation of the characteristic value of a connected base station exceeds a preset threshold
  • the eigenvalue of a connected base station satisfies the pre-set condition.
  • the device further comprises:
  • the third sending module is configured to: send the local subframe configuration information to the multi-connection user; or obtain the subframe configuration information of each connected base station of the multi-connection user, and send the subframe configuration information of each connected base station Give multiple connected users.
  • the device further comprises:
  • the receiving module is configured to: receive the multi-connection user subframe allocation confirmation message after transmitting the subframe configuration information to the multi-connection user.
  • the device provided by the embodiment of the invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point to communicate, and improve the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user.
  • the apparatus shown in Figs. 8 and 9 is a device having a multi-connection control function.
  • the control architecture of the multi-connection communication of the device in the pattern switch mode adds a multi-connection control module to the functional entity of the base station to perform multi-connection coordinated communication-related control.
  • the device is responsible for the scheduling control of the multi-connection communication and the associated signaling interaction between the base stations for this purpose.
  • the multi-connection control module may exist independently of other control modules of the base station, or may be included in other control modules.
  • the embodiment of the invention also discloses a computer program, comprising program instructions, when the program instruction is executed by a base station, so that the base station can perform the distributed coordination method of any of the above multi-connection communication.
  • the embodiment of the invention also discloses a carrier carrying the computer program.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the invention is not limited to any particular hard The combination of software and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment provided by the present invention coordinates the operation of the multi-connection in the pattern switching mode, so that the user can fully utilize the multiple connections established by the multi-point communication to improve the gain brought by the multi-connection. Since each connection can flexibly adjust the number of occupied subframes according to channel conditions, a single user can fully utilize the connections with good quality of each channel for data communication, thereby further increasing the peak rate of the user. Therefore, the present invention has strong industrial applicability.

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Abstract

一种多连接通信的分布式协调方法和装置,所述方法包括:主连接控制点获取同一多连接用户的每个已连基站的开关图样,并根据各个已连基站的开关图样,确定所述多连接用户在每个已连基站的连接对应的子帧配置信息,并将所述在每个已连基站的连接对应的子帧配置信息通知各个已连基站。

Description

一种多连接通信的分布式协调方法和装置 技术领域
本文涉及多连接通信技术领域,尤其涉及一种多连接通信的分布式协调方法和装置。
背景技术
移动互联网、物联网、以及其他业务应用的迅猛发展已经成为推动第五代移动通信技术(5G)发展的主要驱动力。他们迫切要求5G具有媲美光纤的接入速率、千亿设备的连接能力、完美的实时体验、以及随时随地的无线宽带接入能力。此外,能耗效率、频谱效率和峰值速率等重要指标也需要在5G系统设计时综合考虑。中国在2013年成立了IMT-2020(5G)推进组来推动5G技术的发展。根据国际整体情况,预计2015年将形成5G愿景、关键能力需求及频谱规划,之后将启动5G标准化工作,并在2020年后开始商用。国际标准方面,LTE-Advanced的技术标准主要在3GPP国际标准化组织制订。业界初步认为在3GPP R14阶段(预计于2016年)将启动面向5G的标准研究工作。
在未来的移动网络中,业务量需求会不断提高、终端数目和种类也不断爆发式增长。作为5G的重要场景和技术手段之一,机器间通信(MTC)和超密集网络(UDN)正受到越来越多的关注。当相关技术的LTE-A技术应用于超密集网络中,各小区公共参考信号(CRS)间的干扰随着小区数量的增加越来越严重。为了避开这个干扰,UDN中经常需要进行小区间的协调开关,即在某段时间关闭部分小区基站来减少干扰,而在另一段时间关闭另一部分小区基站。为了协调和降低各小区的干扰,可以使用理想的回传链路来实时交互业务流量信息,并根据业务流量信息进行各小区开关的集中控制。但是,理想的回传链路大大增加了回传网络的部署成本,所有在实际的网络部署中很难在所有覆盖场景下全部实现理想回传。为了在回传链路非理想的情况下协调各个小区之间的干扰,经常采用按图样进行小区开关的干扰协调模式(以下简称为图样开关模式),即每个小区按照一定的图样进行小区信号的开关, 从而降低各小区之间的干扰。具体的开关图样可以由中心节点统一分配,也可以由各小区和其相邻小区根据检测到的干扰状况通过协商产生。图样中进行小区开关的每个单位时间段可以从一个无线子帧到多个无线子帧,整个图样的控制时长(即整个开关图样周期)取决于所采用的开关图样的实际长度,可以从几ms到几十、几百、几千ms、甚至更长。这样,各个小区间的相关控制信息的交互可以根据回传链路的实际时延状况来进行,并产生相应长度的非周期性的或周期性的开关控制图样。本发明中,进行一次小区开关的单位时间粒度称为图样开关的单位时间段,其长度可以是一个或多个子帧。其中,子帧长度在传统LTE系统中为1ms,在未来的5G系统中可以小于1ms。为了简单,本发明在以下的描述中以一个子帧为图样开关的单位时间段,处于打开状态的子帧称为ON子帧,处于关闭状态的子帧称为OFF子帧。
虽然图样开关模式能够在回传链路非理想的情况下有效的进行干扰协调,但也在一定程度上限制了用户的峰值速率。这是因为小区在一部分子帧段内处于关闭(OFF)状态,用户无法利用这部分子帧进行数据传送。为了克服这个缺点,可以采样多连接的数据传送方案,即用户同时和相邻的多个小区基站建立多个连接,在不同的开关单位时间使用不同的连接进行数据传输。这样,该用户就可以利用所有子帧进行数据传输,大大提高了传输的峰值速率。并且,由于UDN的各小区使用的是相同频点的信道,这种多连接的通信方式只需要使用一套无线设备就可以实现,没有增加用户终端的成本,这和3GPP讨论的异频双连接方案完全不同。除了增加峰值速率,多连接方案可以使用户和多个接入点保持连接,即使单个无线链路突然中断,用户仍然可以利用其他链路进行数据传输,提高了用户业务传输的可靠性,这对于某些需要高可靠通信的MTC场景是十分有用的。
然而,以前讨论的多连接数据传输方法并没有考虑在图样开关模式下的具体实现方法。并且,由于用户只有一套无线收发设备,单一时间只能和一个基站或传送点(TP)进行数据通信,因此需要协调多连接用户各个连接在图样开关模式下的运行。
发明内容
本发明要解决的技术问题是提供一种多连接通信的分布式协调方法和装置,以在图样开关模式下协调多连接用户在各个连接上的运行。
为解决上述技术问题,本发明提供了如下技术方案:
一种多连接通信的分布式协调方法,包括:
主连接控制点获取一多连接用户的多个已连基站的开关图样,并根据所获取的多个所述已连基站的开关图样,确定所述多连接用户的每个连接对应的子帧配置信息,并将所述多连接用户的每个连接对应的子帧配置信息通知所述多连接用户的所有已连基站。
可选地,该方法还包括:
按照如下方式确定所述主连接控制点:
从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;
多个所述已连基站根据所获得的连接信息,选择其中一个基站作为所述主连接控制点。
可选地,所述连接信息包括如下信息中的至少一个:
连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
可选地,所述基站的特征信息包括如下信息中的至少一个:
基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
可选地,所述从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息的步骤包括:
周期性地从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;或者,
由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
可选地,由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息的步骤包括:
所述多连接用户的多个所述已连基站中的某个已连基站的开关图样发生变化;或者,
所述多连接用户的多个所述已连基站中的某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,
所述多连接用户的多个所述已连基站中的某个已连基站的特征值满足预先设置的条件时,
触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
可选地,所述多个所述已连基站根据所获得的连接信息,选择其中一个基站作为所述主连接控制点的步骤包括:
由预先确定的已连基站根据所获得的连接信息进行选择,确定其中一个基站作为所述主连接控制点;或者,
多个所述已连基站根据所获得的连接信息进行判决,确定其中一个基站作为所述主连接控制点。
可选地,该方法还包括:
所述主连接控制点将所述子帧配置信息发送给所述多连接用户。
一种多连接通信的分布式协调方法,包括:
多连接用户的一已连基站获取该多连接用户在本地的子帧配置信息,并按照获取得到的子帧配置信息对所述多连接用户的业务进行调度。
可选地,所述已连基站获取该多连接用户在本地的子帧配置信息的步骤包括:
所述已连基站接收主连接控制点发送的所述多连接用户在本地的子帧配置信息;或者,
所述已连基站获取所述多连接用户的其他已连基站的连接信息,并根据所述连接信息,确定所述多连接用户在本地的子帧配置信息。
可选地,所述连接信息包括如下信息中的至少一个:
连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
可选地,所述基站的特征信息包括如下信息中的至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
可选地,所述已连基站获取所述多连接用户的其他已连基站的连接信息的步骤包括:
所述已连基站周期性地获取所述多连接用户的其他已连基站的连接信息;或者,
所述已连基站主动触发,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息。
可选地,所述已连基站主动触发,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息的步骤包括:
所述已连基站,或者其他已连基站中任一已连基站的开关图样发生变化;或者,
所述已连基站,或者其他已连基站中任一已连基站的特征值的变化幅度超过预先设置的阈值;或者,
所述已连基站,或者其他已连基站中任一已连基站的特征值满足预先设置的条件时,
触发获取所述多连接用户的其他已连基站的连接信息。
可选地,所述方法还包括:
所述已连基站将本地的子帧配置信息发送给所述多连接用户;或者,
所述已连基站获取所述多连接用户的所有已连基站的子帧配置信息,并将所有已连基站的子帧配置信息发送给所述多连接用户。
可选地,所述已连基站将本地的子帧配置信息发送给所述多连接用户的步骤之后,或者,所述已连基站将所有已连基站的子帧配置信息发送给所述多连接用户的步骤之后,所述方法还包括:
所述已连基站接收所述多连接用户的子帧分配确认消息。
一种多连接通信的分布式协调装置,位于多连接用户的一个已连基站中,包括第一获取模块、确定模块和第一发送模块,其中:
所述第一获取模块设置成:获取一多连接用户的多个已连基站的开关图样;
所述确定模块设置成:根据多个所述已连基站的开关图样,确定所述多连接用户的每个连接对应的子帧配置信息;
所述第一发送模块设置成:将所述多连接用户的每个连接对应的子帧配置信息通知所述多连接用户的所有已连基站。
可选地,所述第一获取模块设置成:从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;
所述确定模块还设置成:与除所述协调装置所处的基站外的其他基站一起,根据所获取的连接信息,选择其中一个基站作为主连接控制点。
可选地,所述连接信息包括如下信息中的至少一个:
连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
可选地,所述基站的特征信息包括如下信息中的至少一个:
基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
可选地,所述第一获取模块设置成按照如下方式从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息:
周期性地从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;或者,
由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
可选地,所述第一获取模块设置成按照如下方式由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息:
所述多连接用户的多个所述已连基站中的某个已连基站的开关图样发生变化;或者,
所述多连接用户的多个所述已连基站中的某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,
所述多连接用户的多个所述已连基站中的某个已连基站的特征值满足预先设置的条件,
从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
可选地,所述确定模块设置成按照如下方式与除所述协调装置所处的基站外的其他基站一起,根据所获取的连接信息,选择其中一个基站作为主连接控制点:
由预先确定的已连基站根据所获得的连接信息进行选择,确定其中一个基站作为所述主连接控制点;或者,
多个所述已连基站根据所获得的连接信息进行判决,确定其中一个基站作为所述主连接控制点。
可选地,所述装置还包括第二发送模块,其中:
所述第二发送模块设置成:将所述子帧配置信息发送给所述多连接用户。
一种多连接通信的分布式协调装置,位于多连接用户的一已连基站中,包括第二获取模块和调度模块,其中:
所述第二获取模块设置成:获取所述多连接用户在本地的子帧配置信息;
所述调度模块设置成:按照获取得到的子帧配置信息对所述多连接用户的业务进行调度。
可选地,所述第二获取模块设置成按照如下方式获取所述多连接用户在本地的子帧配置信息:
接收主连接控制点发送的所述多连接用户在本地的子帧配置信息;或者,
获取所述多连接用户的其他已连基站的连接信息,并根据所述连接信息, 确定所述多连接用户在本地的子帧配置信息。
可选地,所述连接信息包括如下信息中的至少一个:
连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
可选地,所述基站的特征信息包括如下信息中的至少一个:
基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
可选地,所述第二获取模块设置成按照如下方式获取所述多连接用户的其他已连基站的连接信息:
周期性地获取所述多连接用户的其他已连基站的连接信息;或者,
所述获取模块主动获取,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息。
可选地,所述获取模块设置成按照如下方式主动获取,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息:
该分布式协调装置所在的已连基站,或者其他已连基站中任一已连基站的开关图样发生变化;或者,
该分布式协调装置所在的已连基站,或者其他已连基站中任一已连基站的特征值的变化幅度超过预先设置的阈值;或者,
该分布式协调装置所在的已连基站,或者其他已连基站中任一已连基站的特征值满足预先设置的条件,
所述获取模块主动获取,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息。
可选地,所述装置还包括第三发送模块,其中:
所述第三发送模块设置成:将本地的子帧配置信息发送给所述多连接用户;或者,将获取的所述多连接用户的所有已连基站的子帧配置信息发送给所述多连接用户。
可选地,所述装置还包括接收模块,其中:
所述接收模块设置成:接收所述多连接用户的子帧分配确认消息。
本发明提供的实施例,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。
附图概述
图1为本发明实施例提供的多连接通信的分布式协调方法的流程图;
图2为本发明实施例提供的另一种多连接通信的分布式协调方法的流程图;
图3为本发明实施例提供的图样开关工作模式的超密集网络(UDN)的示意图;
图4为本发明实施例提供的在图3所示网络中用户进行多连接通信的示意图;
图5为本发明实施例提供的多连接通信的主从式协调方法流程实施例;
图6为本发明实施例提供的多连接通信的一种分布式协调方法流程实施例;
图7为本发明实施例提供的多连接通信的另一种分布式协调方法流程实施例;
图8为本发明实施例提供的一种多连接通信的分布式协调装置的结构图;
图9为本发明实施例提供的另一种多连接通信的分布式协调装置的结构图。
本发明的较佳实施方式
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求 的保护范围。
下面将结合附图及具体实施例对本发明作进一步的详细描述。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
图1为本发明实施例提供的多连接通信的分布式协调方法的流程图,如图1所示,该方法包括:
步骤101、主连接控制点获取同一多连接用户的每个已连基站的开关图样;
步骤102、所述主连接控制点根据多个已连基站的开关图样,确定所述多连接用户在每个已连基站的连接对应的子帧配置信息;
步骤103、所述主连接控制点将在每个已连基站的连接对应的子帧配置信息通知至所有的已连基站。
本发明提供的方法实施例,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。
图2为本发明实施例提供的另一种多连接通信的分布式协调方法的流程图,如图2所示,该方法包括:
步骤201、多连接用户的已连基站获取多连接用户在本地对应的子帧配置信息;
步骤202、所述已连基站按照获取得到的子帧配置信息对所述多连接用户的业务进行调度。
本发明提供的方法实施例,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。
下面对本发明实施例提供的方法作进一步说明:
图3为本发明实施例提供的图样开关工作模式的超密集网络(Ultra-Dense  Network,UDN)的示意图。如图3所示,随着未来5G无线网络的发展和无线宽带应用的普及,超密集网络(UDN)的场景将会越来越多。其中,宏基站覆盖可以提供较大范围的无线链路支持,但由于传输距离较远导致链路的质量受到一定的影响;各小基站为终端提供更加优良的无线链路,用于增强网络的容量。但是,随着小小区覆盖的密集化,小基站的分布更加密集和无序,小小区间的干扰变得十分复杂,产生了更多的边缘用户,严重限制了整个UDN网络的整体吞吐量。为了在回传链路非理想的情况下协调各个小区之间的干扰,经常采用按图样进行小区开关的干扰协调模式。以下简称为图样开关模式,即每个小区按照一定的图样进行小区信号的开关,从而降低各小区之间的干扰。本图右侧显示了各小小区的开关图样示例。不同小小区的开关图样是不同的,但它们在时间上是同步的,且都由多个单位时间段组成。在每个单位时间段,各小区可以根据图样决定自己的开关状态。具体的开关图样可以由中心节点统一分配,也可以由各小区和其相邻小区根据检测到的干扰状况通过协商产生。图样中进行小区开关的单位时间段可以从一个1毫秒(ms)子帧到多个10ms的无线帧,整个图样的控制时长(即整个开关图样周期)取决于开关图样的实际长度,可以从几ms到几十、几百、几千ms、甚至更长。这样,各个小区间的相关控制信息的交互可以根据回传链路的实际时延状况来进行,并产生相应长度的非周期性或周期性的开关控制图样。
图4为本发明实施例提供的在图3所示网络中用户进行多连接通信的示意图。如图4所示,虽然图样开关模式能够在回传链路非理想的情况下有效的进行干扰协调,但也在一定程度上限制了用户的峰值速率。这是因为每个小区都在一部分子帧段内处于关闭(OFF)状态,用户无法利用这部分子帧进行数据传送。为了克服这个缺点,可以采用多连接的数据传送方案,即用户同时和相邻的多个小区基站建立多个连接,在不同的开关单位时间使用不同的连接进行数据传输。图中用户A同时和基站2、3、4建立了多个连接。由于基站2,3,4在相同时间段开关状态不同,用户A可以在不同时间利用不同的连接进行数据传输。这样,该用户在所有子帧内都可以进行数据传输,大大提高了单用户传输的峰值速率。图2中,用户A在子帧#1、#3、#5和基站2通信;在子帧#1、#2、#4、#6和基站3通信;在子帧#2、#4、#6和基站4通信。并且,由于UDN的各小区使用的是相同频点的信道,这种多连接时 分的通信方式只需要使用一套无线设备就可以实现,没有增加用户终端的成本。
实施例一
图5为本发明提供的多连接通信的主从式协调方法流程实施例。在多连接通信的主从式协调方法中,各已连基站中有且只有一个节点为主连接控制点,其他已连基站为从连接控制点。本发明实施例中提供的图样开关模式下的多连接通信的主从式协调方法是这样实现的:
步骤1、某用户的多个已连基站之间交互彼此的开关图样和多连接相关信息;
其中,多连接相关信息可以包括如下至少一个:各个连接的信道质量信息、各个连接信道的稳定性信息和各个已连基站的特征信息;
其中,所述各个已连基站的特征信息包括如下至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
可选的,该交互过程可以周期性的进行,也可以由已连基站之一触发进行。可选的,当某个已连基站的开关图样发生变化;或者,某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,某个已连基站的特征值满足预先设置的条件时,触发上述信息交互。
步骤2、多个所述已连基站通过协商或本地判决完成主连接控制点的选择。
可选的,可以根据步骤1中交互的信息(比如各连接的信道质量或信道稳定性等)对已连基站进行排序,选择最优节点作为多连接用户的主连接控制点,其他节点设为从连接控制点。
该选择过程可以在至少两个已连基站中由预先确定的已连基站根据所述连接信息进行选择,确定其中一个基站作为主连接控制点;或者,所述至少两个已连基站根据所述连接信息,分别在各个已连基站进行判决,确定其中一个基站作为主连接控制点。
步骤3、由主连接控制点(如图5的已连基站A)根据开关图样进行各连 接子帧分配,即确定该用户归属于各个连接的子帧号码,并将相关信息通知多个所述已连基站。
可选的,各连接子帧分配还可以基于上述的多连接相关信息,包括如下至少一个:各个连接的信道质量信息、各个连接信道的稳定性信息和各个已连基站的特征信息;
其中,所述各个已连基站的特征信息包括如下至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
步骤4、主连接控制点(如图5的已连基站A)将更新的子帧配置信息发送给多连接用户,以便用户根据相关的配置信息进行后续的各连接的通信。
通过将子帧配置信息发送给多连接用户,可以方便用户按照子帧配置信息充分利用帧资源,提高资源的利用率。
为了保证消息的准确接收,在向多连接用户发送子帧配置信息之后,所述方法还包括:已连基站接收多连接用户子帧分配确认消息。
具体的,已连基站通过发送“多连接用户子帧分配”消息将子帧配置发送给多连接用户,通过判断是否接收到用户反馈的“多连接用户子帧分配确认”消息来确认对该消息的正确接收。这两条消息可以通过新的无线资源控制(Radio Resource Control,RRC)信令进行传递,也可以将其内容包含在已有的无线资源控制(RRC)信令中进行传递。
步骤5、多个所述已连基站按所分配的子帧号进行该用户的业务调度。然后,用户按已连基站的调度信息进行数据通信。
本发明实施例一提供的方法,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。利用主从模式进行协调管理,方便从整体上管理多个已连基站。
实施例二
图6为本发明提供的多连接通信的一种分布式协调方法流程实施例。如 图所示,在分布式协调方法中,各已连基站的地位是平等的。本发明实施例中提供的图样开关模式下的多连接通信的分布式协调方法是这样实现的:
步骤1、某用户的已连基站交互彼此的开关图样和多连接相关信息;
其中,多连接相关信息可以包括如下至少一个:各个连接的信道质量信息、各个连接信道的稳定性信息和各个已连基站的特征信息;
其中,所述各个已连基站的特征信息包括如下至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
可选的,该交互过程可以周期性的进行,也可以由已连基站之一触发进行。
可选的,当某个已连基站的开关图样发生变化;或者,某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,某个已连基站的特征值满足预先设置的条件时,触发上述信息交互。
步骤2、各个已连基站根据交互得到的信息,按照统一的算法直接进行本地子帧自配置。
步骤3、各个已连基站将更新的子帧配置信息发送给多连接用户,以便用户根据相关的配置信息进行后续的各连接的通信。
步骤4、各已连基站按自配置的子帧号进行该用户的业务调度。然后用户按已连基站的调度信息进行数据通信。
本发明实施例二提供的方法,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。各个已连基站自身确定子帧配置信息,实现在多连接通信的协调管理。
实施例三
图7为本发明提供的多连接通信的另一种分布式协调方法流程实施例。与实施例二不同的是,本实施例是各基站将决定的子帧配置信息基站到已连基站A后,然后由已连基站A统一发送给多连接用户,其中步骤1、2和4 和图5的实施例相同。
本发明实施例三提供的方法,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。各个已连基站自身确定子帧配置信息,实现在多连接通信的协调管理。
需要说明的是,在实施例二和实施例三中,已连基站还可以将本地的子帧配置信息发送给多连接用户;或者,已连基站获取多连接用户的各个已连基站的子帧配置信息,并将各个已连基站的子帧配置信息发送给多连接用户。
由上可以看出,将子帧配置信息发送给多连接用户,可以方便用户按照子帧配置信息充分利用帧资源,提高资源的利用率。
为了保证消息的准确接收,在向多连接用户发送子帧配置信息之后,所述方法还包括:
已连基站接收多连接用户子帧分配确认消息。
具体的,已连基站通过发送“多连接用户子帧分配”消息将子帧配置发送给多连接用户,通过判断是否接收到用户反馈的“多连接用户子帧分配确认”消息来确认对该消息的正确接收。这两条消息可以通过新的无线资源控制(Radio Resource Control,RRC)信令进行传递,也可以将其内容包含在已有的无线资源控制(RRC)信令中进行传递。
图8为本发明实施例提供的一种多连接通信的分布式协调装置的结构图。图8所示结构,包括:
第一获取模块801,设置成:获取同一多连接用户的每个已连基站的开关图样;
确定模块802,设置成:根据各个已连基站的开关图样,确定所述多连接用户在每个已连基站的连接对应的子帧配置信息;
第一发送模块803,设置成:将所述在每个已连基站的连接对应的子帧配置信息通知各个已连基站。
其中,所述装置是通过如下方式获取的,包括:
同一多连接用户的每个已连基站中获取所述多连接用户的其他已连基站的连接信息;
所述至少两个已连基站根据所述连接信息,选择其中一个基站作为主连接控制点。
其中,所述连接信息包括如下至少一个:各个连接的信道质量信息、各个连接信道的稳定性信息和各个已连基站的特征信息。
其中,所述各个已连基站的特征信息包括如下至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
其中,所述同一多连接用户的每个已连基站中获取所述多连接用户的其他已连基站的连接信息是以周期性的进行的;或者,由所述至少两个已连基站中的一个触发的。
其中,由所述至少两个已连基站中的一个触发所述同一多连接用户的每个已连基站中获取所述多连接用户的其他已连基站的连接信息,包括:
某个已连基站的开关图样发生变化;或者,
某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,
某个已连基站的特征值满足预先设置的条件。
其中,所述至少两个已连基站根据所述连接信息,选择其中一个基站作为主连接控制点,包括:
所述至少两个已连基站中由预先确定的已连基站根据所述连接信息进行选择,确定其中一个基站作为主连接控制点;或者,
所述至少两个已连基站根据所述连接信息,分别在各个已连基站进行判决,确定其中一个基站作为主连接控制点。
其中,所述装置还包括:
第二发送模块,设置成:将所述子帧配置信息发送给所述多连接用户。
本发明实施例提供的装置,在图样开关模式下协调多连接的运行,使用 户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。
图9为本发明实施例提供的另一种多连接通信的分布式协调装置的结构图。图9所示装置包括:
第二获取模块901,设置成:获取多连接用户在本地对应的子帧配置信息;
调度模块902,设置成:按照获取得到的子帧配置信息对所述多连接用户的业务进行调度。
其中,所述第二获取模块具体设置成:
接收主连接控制点发送的子帧配置信息,确定多连接用户在本地对应的子帧配置信息;或者,获取所述多连接用户的其他已连基站的连接信息,并根据所述连接信息,确定多连接用户在本地对应的子帧配置信息。
其中,所述连接信息包括如下至少一个:各个连接的信道质量信息、各个连接信道的稳定性信息和各个已连基站的特征信息。
其中,所述各个已连基站的特征信息包括如下至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
其中,所述同一多连接用户的每个已连基站中获取所述多连接用户的其他已连基站的连接信息是以周期性的进行的;或者,由所述至少两个已连基站中的一个触发的。
其中,由所述至少两个已连基站中的一个触发所述同一多连接用户的每个已连基站中获取所述多连接用户的其他已连基站的连接信息,包括:
某个已连基站的开关图样发生变化;或者,
某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,
某个已连基站的特征值满足预先设置的条件。
其中,所述装置还包括:
第三发送模块,设置成:将本地的子帧配置信息发送给多连接用户;或者,获取多连接用户的各个已连基站的子帧配置信息,并将各个已连基站的子帧配置信息发送给多连接用户。
其中,所述装置还包括:
接收模块,设置成:在向多连接用户发送子帧配置信息之后接收多连接用户子帧分配确认消息。
本发明实施例提供的装置,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。
需要说明的是,图8和图9所示装置是具有多连接控制功能的装置。该装置在图样开关模式下的多连接通信的控制架构在基站的功能实体中增加了多连接控制模块进行多连接协调通信相关的控制。该装置负责多连接通信的调度控制以及以此为目的进行的基站之间的相关的信令交互。可选的,该多连接控制模块可以独立于基站的其他控制模块单独存在,也可以包含在其他控制模块中。
本发明实施例还公开了一种计算机程序,包括程序指令,当该程序指令被基站执行时,使得该基站可执行上述任意的多连接通信的分布式协调方法。
本发明实施例还公开了一种载有所述的计算机程序的载体。
在阅读并理解了附图和详细描述后,可以明白其他方面。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤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。
上述实施例中的各装置/功能模块/功能单元可以采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,也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求所述的保护范围为准。
工业实用性
本发明提供的实施例,在图样开关模式下协调多连接的运行,使用户能充分利用其和多点建立的多个连接进行通信,提高多连接带来的增益。由于各个连接可以根据信道状况灵活调整所占用的子帧数,使得单用户能充分利用各信道质量好的连接进行数据通信,进一步提高了用户的峰值速率。因此本发明具有很强的工业实用性。

Claims (32)

  1. 一种多连接通信的分布式协调方法,包括:
    主连接控制点获取一多连接用户的多个已连基站的开关图样,并根据所获取的多个所述已连基站的开关图样,确定所述多连接用户的每个连接对应的子帧配置信息,并将所述多连接用户的每个连接对应的子帧配置信息通知所述多连接用户的所有已连基站。
  2. 根据权利要求1所述的多连接通信的分布式协调方法,该方法还包括:
    按照如下方式确定所述主连接控制点:
    从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;
    多个所述已连基站根据所获得的连接信息,选择其中一个基站作为所述主连接控制点。
  3. 根据权利要求1或2所述的多连接通信的分布式协调方法,其中,所述连接信息包括如下信息中的至少一个:
    连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
  4. 根据权利要求3所述的多连接通信的分布式协调方法,其中,所述基站的特征信息包括如下信息中的至少一个:
    基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
  5. 根据权利要求2所述的多连接通信的分布式协调方法,其中,所述从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息的步骤包括:
    周期性地从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;或者,
    由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
  6. 根据权利要求5所述的多连接通信的分布式协调方法,其中,由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息的步骤包括:
    所述多连接用户的多个所述已连基站中的某个已连基站的开关图样发生变化;或者,
    所述多连接用户的多个所述已连基站中的某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,
    所述多连接用户的多个所述已连基站中的某个已连基站的特征值满足预先设置的条件时,
    触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
  7. 根据权利要求2所述的多连接通信的分布式协调方法,其中,所述多个所述已连基站根据所获得的连接信息,选择其中一个基站作为所述主连接控制点的步骤包括:
    由预先确定的已连基站根据所获得的连接信息进行选择,确定其中一个基站作为所述主连接控制点;或者,
    多个所述已连基站根据所获得的连接信息进行判决,确定其中一个基站作为所述主连接控制点。
  8. 根据权利要求1所述的多连接通信的分布式协调方法,其中,该方法还包括:
    所述主连接控制点将所述子帧配置信息发送给所述多连接用户。
  9. 一种多连接通信的分布式协调方法,包括:
    多连接用户的一已连基站获取该多连接用户在本地的子帧配置信息,并按照获取得到的子帧配置信息对所述多连接用户的业务进行调度。
  10. 根据权利要求9所述的多连接通信的分布式协调方法,其中,所述已连基站获取该多连接用户在本地的子帧配置信息的步骤包括:
    所述已连基站接收主连接控制点发送的所述多连接用户在本地的子帧配置信息;或者,
    所述已连基站获取所述多连接用户的其他已连基站的连接信息,并根据所述连接信息,确定所述多连接用户在本地的子帧配置信息。
  11. 根据权利要求9或10所述的多连接通信的分布式协调方法,其中,所述连接信息包括如下信息中的至少一个:
    连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
  12. 根据权利要求11所述的多连接通信的分布式协调方法,其中,所述基站的特征信息包括如下信息中的至少一个:基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
  13. 根据权利要求10所述的多连接通信的分布式协调方法,其中,所述已连基站获取所述多连接用户的其他已连基站的连接信息的步骤包括:
    所述已连基站周期性地获取所述多连接用户的其他已连基站的连接信息;或者,
    所述已连基站主动触发,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息。
  14. 根据权利要求13所述的多连接通信的分布式协调方法,其中,所述已连基站主动触发,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息的步骤包括:
    所述已连基站,或者其他已连基站中任一已连基站的开关图样发生变化;或者,
    所述已连基站,或者其他已连基站中任一已连基站的特征值的变化幅度 超过预先设置的阈值;或者,
    所述已连基站,或者其他已连基站中任一已连基站的特征值满足预先设置的条件时,
    触发获取所述多连接用户的其他已连基站的连接信息。
  15. 根据权利要求9所述的多连接通信的分布式协调方法,所述方法还包括:
    所述已连基站将本地的子帧配置信息发送给所述多连接用户;或者,
    所述已连基站获取所述多连接用户的所有已连基站的子帧配置信息,并将所有已连基站的子帧配置信息发送给所述多连接用户。
  16. 根据权利要求15所述的多连接通信的分布式协调方法,其中,所述已连基站将本地的子帧配置信息发送给所述多连接用户的步骤之后,或者,所述已连基站将所有已连基站的子帧配置信息发送给所述多连接用户的步骤之后,所述方法还包括:
    所述已连基站接收所述多连接用户的子帧分配确认消息。
  17. 一种多连接通信的分布式协调装置,位于多连接用户的一个已连基站中,包括第一获取模块、确定模块和第一发送模块,其中:
    所述第一获取模块设置成:获取一多连接用户的多个已连基站的开关图样;
    所述确定模块设置成:根据多个所述已连基站的开关图样,确定所述多连接用户的每个连接对应的子帧配置信息;
    所述第一发送模块设置成:将所述多连接用户的每个连接对应的子帧配置信息通知所述多连接用户的所有已连基站。
  18. 根据权利要求17所述的多连接通信的分布式协调装置,其中,
    所述第一获取模块设置成:从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;
    所述确定模块还设置成:与除所述协调装置所处的基站外的其他基站一起,根据所获取的连接信息,选择其中一个基站作为主连接控制点。
  19. 根据权利要求17或18所述的多连接通信的分布式协调装置,其中,所述连接信息包括如下信息中的至少一个:
    连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
  20. 根据权利要求19所述的多连接通信的分布式协调装置,其中,所述基站的特征信息包括如下信息中的至少一个:
    基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
  21. 根据权利要求18所述的多连接通信的分布式协调装置,其中,所述第一获取模块设置成按照如下方式从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息:
    周期性地从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息;或者,
    由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
  22. 根据权利要求21所述的多连接通信的分布式协调装置,其中,所述第一获取模块设置成按照如下方式由所述多连接用户的多个所述已连基站中的一个触发从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息:
    所述多连接用户的多个所述已连基站中的某个已连基站的开关图样发生变化;或者,
    所述多连接用户的多个所述已连基站中的某个已连基站的特征值的变化幅度超过预先设置的阈值;或者,
    所述多连接用户的多个所述已连基站中的某个已连基站的特征值满足预 先设置的条件,
    从所述多连接用户的多个所述已连基站中获取每个已连基站的连接信息。
  23. 根据权利要求18所述的多连接通信的分布式协调装置,其中,所述确定模块设置成按照如下方式与除所述协调装置所处的基站外的其他基站一起,根据所获取的连接信息,选择其中一个基站作为主连接控制点:
    由预先确定的已连基站根据所获得的连接信息进行选择,确定其中一个基站作为所述主连接控制点;或者,
    多个所述已连基站根据所获得的连接信息进行判决,确定其中一个基站作为所述主连接控制点。
  24. 根据权利要求17所述的多连接通信的分布式协调装置,所述装置还包括第二发送模块,其中:
    所述第二发送模块设置成:将所述子帧配置信息发送给所述多连接用户。
  25. 一种多连接通信的分布式协调装置,位于多连接用户的一已连基站中,包括第二获取模块和调度模块,其中:
    所述第二获取模块设置成:获取所述多连接用户在本地的子帧配置信息;
    所述调度模块设置成:按照获取得到的子帧配置信息对所述多连接用户的业务进行调度。
  26. 根据权利要求25所述的多连接通信的分布式协调装置,其中,所述第二获取模块设置成按照如下方式获取所述多连接用户在本地的子帧配置信息:
    接收主连接控制点发送的所述多连接用户在本地的子帧配置信息;或者,
    获取所述多连接用户的其他已连基站的连接信息,并根据所述连接信息,确定所述多连接用户在本地的子帧配置信息。
  27. 根据权利要求25或26所述的多连接通信的分布式协调装置,其中, 所述连接信息包括如下信息中的至少一个:
    连接的信道质量信息、连接信道的稳定性信息和基站的特征信息。
  28. 根据权利要求27所述的多连接通信的分布式协调装置,其中,所述基站的特征信息包括如下信息中的至少一个:
    基站回传链路的质量信息、基站回传链路的带宽信息、基站的移动性信息,基站的电量信息和基站的处理能力信息。
  29. 根据权利要求26所述的多连接通信的分布式协调装置,其中,所述第二获取模块设置成按照如下方式获取所述多连接用户的其他已连基站的连接信息:
    周期性地获取所述多连接用户的其他已连基站的连接信息;或者,
    所述获取模块主动获取,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息。
  30. 根据权利要求29所述的多连接通信的分布式协调装置,其中,所述获取模块设置成按照如下方式主动获取,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息:
    该分布式协调装置所在的已连基站,或者其他已连基站中任一已连基站的开关图样发生变化;或者,
    该分布式协调装置所在的已连基站,或者其他已连基站中任一已连基站的特征值的变化幅度超过预先设置的阈值;或者,
    该分布式协调装置所在的已连基站,或者其他已连基站中任一已连基站的特征值满足预先设置的条件,
    所述获取模块主动获取,或者接受其他已连基站中任一已连基站的触发,获取所述多连接用户的其他已连基站的连接信息。
  31. 根据权利要求25所述的多连接通信的分布式协调装置,所述装置还包括第三发送模块,其中:
    所述第三发送模块设置成:将本地的子帧配置信息发送给所述多连接用户;或者,将获取的所述多连接用户的所有已连基站的子帧配置信息发送给所述多连接用户。
  32. 根据权利要求31所述的多连接通信的分布式协调装置,所述装置还包括接收模块,其中:
    所述接收模块设置成:接收所述多连接用户的子帧分配确认消息。
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