WO2016000268A1 - 干扰协调方法、装置和系统 - Google Patents

干扰协调方法、装置和系统 Download PDF

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Publication number
WO2016000268A1
WO2016000268A1 PCT/CN2014/081687 CN2014081687W WO2016000268A1 WO 2016000268 A1 WO2016000268 A1 WO 2016000268A1 CN 2014081687 W CN2014081687 W CN 2014081687W WO 2016000268 A1 WO2016000268 A1 WO 2016000268A1
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WIPO (PCT)
Prior art keywords
channel
cluster
beacon
period
control node
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PCT/CN2014/081687
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English (en)
French (fr)
Inventor
范小菁
王昊
田军
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富士通株式会社
范小菁
王昊
田军
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Application filed by 富士通株式会社, 范小菁, 王昊, 田军 filed Critical 富士通株式会社
Priority to PCT/CN2014/081687 priority Critical patent/WO2016000268A1/zh
Priority to CN201480078462.3A priority patent/CN106464615B/zh
Publication of WO2016000268A1 publication Critical patent/WO2016000268A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks

Definitions

  • the present invention relates to the field of communications, and in particular, to an interference coordination method, apparatus, and system. Background technique
  • the IEEE Institute of Electrical and Electronics Engineers 802. Had standard and CWPAN (China Wireless Personal Access Network) propose communication in the 60 GHz band.
  • FIG. 1 is a schematic diagram of possible channel division in the 60 GHz band.
  • the channel division in the 60 GHz band may include two 2.16 GHz channels and four 1.08 GHz channels.
  • the 2.16 GHz channel is referred to as a Large Band (LB) channel, labeled 2 and 3
  • the 1.08 GHz channel is referred to as a Small Band (SB) channel, labeled 5, 6, 7, 8, wherein channels 5, 6 overlap channel 2, and channels 7, 8 overlap with channel 3.
  • LB Large Band
  • SB Small Band
  • each cluster has a synchronous control node.
  • a plurality of member control nodes which in addition to managing the network established by themselves, also manage the plurality of member control nodes.
  • an embodiment of the present invention provides an interference coordination method, apparatus, and system, to avoid interference between two clusters, and to achieve seamless switching between cluster fusion and cluster coordination.
  • a first aspect of the embodiments of the present invention provides an interference coordination method, where the method includes: a synchronization control node of a cluster on a first channel in an overlapping channel is added to a second channel in the overlapping channel After the cluster, the cluster fusion indication information is sent on the first channel, to indicate that the member control node on the first channel joins the cluster on the second channel;
  • the synchronization control node listens to a beacon service period on the first channel in a predetermined cluster listening period, where the predetermined cluster listening period includes a first listening period and a Second listening period;
  • the synchronization control node After the first listening period has elapsed, if at least one beacon service period is monitored in the second listening period is a non-idle state, the synchronization control node starts a cluster coordination mechanism on the first channel. .
  • a second aspect of the embodiments of the present invention provides an interference coordination apparatus, which is applied to a synchronization control node of a cluster on a first channel in an overlapping channel, where the apparatus includes:
  • a first sending unit after the synchronization control node joins a cluster on the second channel in the overlapping channel, sending cluster fusion indication information on the first channel to indicate the first channel a member control node joins a cluster on the second channel;
  • a first setting unit which sets a cluster listening period, where the cluster listening period includes a first listening period and a second listening period;
  • a first monitoring unit after the clustering indication information is sent by the first sending unit, listening to a beacon service period on the first channel in a cluster listening period set by the first setting unit ;
  • a first processing unit after the first listening period is passed, if the at least one beacon service period is in the non-idle state during the second listening period, the first processing unit is in the A cluster coordination mechanism is initiated on one channel.
  • a third aspect of the embodiments of the present invention provides an interference coordination apparatus, which is applied to a member control node of a cluster on a first channel of an overlapping channel, where the apparatus includes:
  • a first receiving unit that receives the cluster fusion indication signal sent by the synchronization control node of the cluster on the first channel.
  • a second setting unit which sets a first listening period and a second listening period
  • a first converging unit after the first receiving unit receives the cluster fusion indication information, in the Switching to the second channel of the overlapping channel during a listening period, attempting to join a cluster on the second channel of the overlapping channel, so that the synchronous control node after the first listening period passes
  • the cluster coordination mechanism is started on the first channel.
  • Figure 1 is a schematic diagram of channel division in the 60 GHz band
  • FIG. 2 is a schematic diagram of a scenario in which clusters on mutually different channels of different bandwidths coexist in the same network area
  • FIG. 3 is a schematic diagram of a cluster mechanism specified by the IEEE 802.11ad standard in the prior art
  • FIG. 5 is a flowchart of an implementation manner of an interference coordination method according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram showing the structure of an interference coordination apparatus in Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram showing the structure of an electronic device in Embodiment 3 of the present invention.
  • 8 is a flowchart of an interference coordination method in Embodiment 4 of the present invention.
  • Embodiment 9 is a schematic diagram showing the structure of an interference coordination device in Embodiment 5 of the present invention.
  • FIG. 10 is a block diagram showing the construction of an electronic device in Embodiment 6 of the present invention. detailed description
  • FIG. 3 is a schematic diagram of the cluster mechanism specified by the current IEEE 802.11ad standard. As shown in Figure 3, the concept of clusters is given in the 802.11ad standard.
  • a cluster consists of at least one control node. In the absence of a cluster, a control node with cluster support capability establishes a cluster, and the control node as a cluster's synchronous control node can determine the maximum number of cluster members (ClusterMaxMem, CMM) and beacon period (BIacon). And other synchronization related information.
  • Each beacon period is divided into multiple segments according to the number of cluster members, and the time interval of each segment is called a cluster time interval (CTI), which is also called a cluster interval, that is,
  • ClusterTimeInterval Beaconlnterval ⁇ ClusterMaxMem.
  • the beacon service period (beaconSP) is a period of time sufficient for a beacon frame transmission to complete after the cluster offset starts.
  • the synchronization control node may set its cluster offset time to be the first beacon service period in the BI, that is, ClusterTimeOffset(1).
  • the embodiment of the present invention provides an interference coordination method.
  • the principle of the cluster fusion scheme is that the node on the 1.08 GHz channel first attempts to join. A cluster on a 2.16 GHz channel.
  • the synchronous control node of the cluster on the 1.08 GHz channel continuously monitors the beacon service period on the 1.08 GHz channel.
  • the cluster fusion is completed. Otherwise, cluster fusion fails.
  • the synchronization control node of the cluster on the 1.08 GHz channel begins to perform the cluster coordination mechanism.
  • Embodiment 1 of the present invention provides an interference coordination method
  • FIG. 4 is a flowchart of the method, which is applied to a synchronization control node of a cluster on a first channel in an overlapping channel.
  • the method includes:
  • Step 401 After the synchronization control node of the cluster on the first channel in the overlapping channel joins the cluster on the second channel in the overlapping channel, the cluster fusion indication information is sent on the first channel to indicate the first a member control node on the channel joins the cluster on the second channel;
  • Step 402 After transmitting the cluster fusion indication information, the synchronization control node listens to a beacon service period on the first channel in a predetermined cluster listening period, where the predetermined cluster listening period includes a first listening period and a first Second listening period;
  • Step 403 After the first listening period is passed, if at least one beacon service period is monitored in the second listening period is a non-idle state, the synchronization control node starts a cluster coordination mechanism on the first channel.
  • the non-idle state means that if a beacon frame sent by the member control node is received in a beacon service period, the beacon service period is a non-idle state.
  • the cluster control fails or succeeds by detecting the monitoring of the member control node by the synchronization control node, and when the judgment result is that the cluster fusion fails, the cluster coordination mechanism is started, and two Interference between clusters, thereby achieving seamless switching between cluster fusion and cluster coordination.
  • step 401 the synchronization control node of the cluster on the first channel in the overlapping channel first joins the cluster on the second channel in the overlapping channel, and then sends the cluster fusion indication information on the first channel to indicate the first
  • the member control node on one channel also joins the cluster on the second channel.
  • the synchronization control node may first switch to the second channel, and then join the cluster on the second channel according to the cluster joining method of IEEE 802.11ad to complete the fusion of the synchronization control node to the cluster on the second channel.
  • the specific joining method can refer to IEEE 802.11ad, and details are not described herein again.
  • the beacon frame may include the foregoing cluster fusion indication information, that is, the cluster fusion indication information may be carried by the beacon frame, but the embodiment is not limited thereto.
  • the cluster fusion indication information may include: information indicating that the synchronization control node has joined the cluster on the second channel; and/or cluster control information on the second channel, for example: cluster ID, next beacon period
  • cluster ID cluster ID
  • next beacon period The information such as the start time, the length of the beacon period, and the like, is not limited by this embodiment.
  • the 1.08 GHz channel is the first channel
  • the 2.16 GHz channel is the second channel.
  • the synchronization control node of the cluster on the 1.08 GHz channel first switches to the 2.16 GHz channel, and then joins the cluster on the 2.16 GHz channel according to the IEEE 802.11ad cluster joining method, after which the synchronous control node is on the 2.16 GHz channel.
  • the rules of the cluster transmit and receive beacon frames on the 2.16 GHz channel, while the synchronization control node continuing to act as a cluster on the 1.08 GHz channel transmits a beacon frame containing the cluster fusion indication information at its beacon SP to indicate on the 1.08 GHz channel.
  • the member control node joins the cluster on the 2.16 GHz channel.
  • step 402 the embodiment of the present invention pre-sets a cluster listening period, and after transmitting the cluster fusion indication information, the synchronization control node may listen to the beacon SP on the first channel during the cluster listening period, Determining whether the member control node on the first channel has joined the cluster on the second channel.
  • the synchronization control node can still serve as a member of the cluster on the second channel, and send and receive a beacon frame on the second channel according to the cluster mechanism specified by IEEE 802.11ad, and serve as the first
  • the synchronization control node of the cluster on the channel transmits and receives a beacon frame on the first channel according to the cluster mechanism specified by IEEE 802.11ad to implement monitoring of the beacon service period on the first channel.
  • the letter sent on the first channel The frame frame may include the foregoing cluster fusion indication information, or may not include, and the embodiment is not limited thereto.
  • the synchronous control node works on the first channel and the second channel at the same time, by transmitting and receiving beacon frames on the second channel, it can be known which beacon SPs are occupied on the second channel, and which beacon SPs are Idle, and by transmitting and receiving beacon frames on the first channel, it is also known which beacon SPs are occupied on the first channel and which beacon SPs are idle. Therefore, if the synchronization control node finds that the beacon SP of the cluster on the first channel collides with any one of the beacon SPs of the cluster on the second channel, the synchronization control node may change the beacon of the cluster on the first channel. The start time of the SP to avoid interference.
  • the cluster listening period may be divided into two segments, that is, a first listening period and a second listening period, where the first listening period is used by the member control node of the cluster on the first channel to join the cluster on the second channel. , referred to herein as “fusion listening period”; the second listening period is used by the synchronization control node to determine whether the member control nodes of the cluster on the first channel all join the cluster on the second channel, here referred to as “coordination listening period" ".
  • the first listening period is an integer multiple of a maximum beacon period allowed by the network or an integer multiple of a beacon period of the cluster on the second channel, where the integer is not less than the second channel.
  • the synchronization control node of the cluster controls the number of minimum beacon periods that are separated every time the beacon frame is sent; the second listening period is the time required to determine whether a beacon service period is idle.
  • the cluster listening period can be calculated by referring to the following method:
  • aMinBTIPeriod is the integer, and the cluster synchronization control node needs to send a beacon frame at least once in aMinBTIPeriod beacon period, LBBI is a beacon period of the cluster on the second channel, and aMinChannelTime is a channel monitor required to determine that a beaconSP is idle. time.
  • the duration of the integrated listening period is aMinBTIPeriod x LBBI, and the duration of the coordinated listening period is aMinChannemme.
  • the cluster listening period can be calculated by referring to the following method:
  • the duration of the coordinated listening period is aMinChannelTime, where N is preferably an integer greater than or equal to 2.
  • step 403 after the first listening period after the member control node performs cluster fusion, if The synchronization control node monitors that at least one beacon SP is in a non-idle state during the second listening period, indicating that at least one member control node still sends a beacon frame on the first channel, that is, the member control nodes are not all added.
  • the cluster on the second channel determines that the cluster fusion fails, and thus, the cluster coordination mechanism can be started on the first channel to implement seamless switching between cluster fusion and cluster coordination.
  • the synchronization control node may continue to serve as the second on the second channel.
  • a member of the cluster on the channel transmits and receives a beacon frame
  • the synchronous control node that is the cluster of the first channel transmits and receives a beacon frame on the first channel, and starts a cluster coordination mechanism to avoid sending the beacon frame of the two clusters. Interfere with each other.
  • the embodiment of the present invention does not limit the specific cluster coordination mechanism, and may adopt the method proposed by the prior art, or may adopt other effective cluster coordination methods as the technology develops, as long as it can avoid overlapping on two channels.
  • the scheme in which the beacon frames of the clusters are transmitted to each other is included in the scope of the embodiment of the present invention, and details are not described herein again.
  • the cluster is successfully merged, that is, all the member control nodes are added to the cluster on the second channel, and no longer Transmitting a beacon frame on the first channel, the synchronization control node may leave the cluster on the first channel, stop transmitting and receiving a beacon frame on the first channel, and serve as the second channel on the second channel.
  • Members of the cluster send and receive beacon frames.
  • the channel with the first channel being 1.08 GHz and the second channel being 2.16 GHz is taken as an example.
  • the coordinated control node determines the cluster on the 1.08 GHz channel, all beacon SPs within one beacon period. If all are idle, the cluster integration is completed.
  • the synchronization control node leaves the 1.08 GHz channel cluster and stops the beacon SP of the cluster on the 1.08 GHz channel to transmit and receive beacon frames. If, during the coordinated listening period, the synchronization control node determines that at least one beacon SP in the beacon period of the cluster on the 1.08 GHz channel is in a non-idle state, the cluster fusion fails, and the synchronization control node continues on the 2.16 GHz channel.
  • the beacon frame is transmitted and received as a synchronous control node on the 1.08 GHz channel, and the cluster coordination mechanism is started.
  • the method of the present embodiment will be described below by taking the processing flow of the cluster synchronization control node on the 1.08 GHz channel as an example.
  • FIG. 5 is a flowchart of an embodiment of an interference coordination method according to the embodiment.
  • a channel with a first channel of 1.08 GHz and a second channel of 2.16 GHz is taken as an example, and clusters on a 1.08 GHz channel are used.
  • the two clusters preferentially perform cluster fusion, and the synchronization control node for the clusters on the 1.08 GHz channel includes:
  • Step 501 The synchronization control node of the cluster on the 1.08 GHz channel switches to the 2.16 GHz channel; Step 502, the synchronization control node of the cluster on the 1.08 GHz channel joins the cluster on the 2.16 GHz channel; wherein, the specific joining method and the prior art Similar, it will not be repeated here.
  • Step 503 after joining the cluster on the 2.16 GHz channel, transmitting and transmitting a beacon frame as a member of the cluster on the 2.16 GHz channel on the 2.16 GHz channel while continuing to be a cluster on the 1.08 GHz channel on the 1.08 GHz channel.
  • the synchronization control node sends a beacon frame;
  • the beacon frame sent on the 1.08 GHz channel includes cluster fusion indication information to indicate that the member control node on the 1.08 GHz channel also joins the cluster on the 2.16 GHz channel.
  • Step 504 it is determined whether the first listening period has elapsed. When the determination result is yes, step 505 is performed; otherwise, step 503 is continued;
  • Step 505 it is determined whether the beacon service period is non-idle state, when the determination result is yes, step 506 is performed, otherwise step 507 is performed;
  • Step 506 The synchronization control node starts a cluster coordination mechanism on the 1.08 GHz channel.
  • Step 507 it is determined whether the second listening period has elapsed. If the determination result is yes, step 508 is performed, otherwise, step 505 is returned;
  • Step 508 leaving the cluster on the 1.08 GHz channel, stopping transmitting and receiving beacon frames on the 1.08 GHz channel.
  • the synchronization control node can detect the failure or success of the cluster fusion by monitoring the member control node, and when the judgment result is that the cluster fusion fails, the cluster coordination mechanism is started to avoid the relationship between the two clusters. Interference, thus achieving seamless switching between cluster fusion and cluster coordination.
  • Example 2
  • An embodiment of the present invention further provides an interference coordination apparatus, where the apparatus is applied to a synchronization control node of a cluster on a first channel in an overlapping channel, and the principle of solving the problem by the interference coordination apparatus is similar to the method of Embodiment 1, For the specific implementation, reference may be made to the implementation of the method of Embodiment 1, and the description of the same portions will not be repeated.
  • the interference coordination apparatus includes: a first sending unit 601, where the synchronization control node joins a cluster on a second channel in the overlapping channel. Afterwards, the cluster fusion indication information is sent on the first channel, to indicate that the member control node on the first channel joins the cluster on the second channel;
  • a first setting unit 602 configured to set a cluster listening period, where the cluster listening period includes a first listening period and a second listening period;
  • the first processing unit 604 after the first listening period, if the at least one beacon service period is in the non-idle state during the second listening period, the first processing unit 604 is in the first channel. Start the cluster coordination mechanism.
  • the first intercepting unit 603 transmits and receives a beacon frame as a member of the cluster on the second channel on the second channel during the cluster listening period, and serves as the first channel on the first channel.
  • the synchronization control node of the cluster of one channel transmits and receives the beacon frame.
  • the apparatus further includes: a second processing unit 605, if the beacon service period of the cluster on the first channel conflicts with any one of the beacon service periods of the cluster on the second channel, The second processing unit 605 changes the start time of the beacon service period of the cluster on the first channel.
  • the first listening unit 603 continues to be the cluster on the second channel on the second channel.
  • the member transmits and receives a beacon frame, and transmits and receives a beacon frame as a synchronization control node of the cluster of the first channel on the first channel.
  • the first listening unit 603 stops transmitting and receiving beacon frames on the first channel, and in the second A beacon frame is transmitted and received as a member of the cluster on the second channel.
  • the first setting unit 602 sets the first listening period as an integer multiple of a maximum beacon period allowed by the network or an integer multiple of a beacon period of the cluster on the second channel, where The integer is not less than the minimum number of beacon periods that the synchronization control node of the cluster on the second channel sends every time the beacon frame is sent; the second listening period is the time required to determine whether a beacon service period is idle.
  • the specific setting method of the first listening period and the second listening period please refer to Embodiment 1, and the description is not repeated here.
  • the cluster fusion indication information includes: information indicating that the synchronization control node has joined the cluster on the second channel; and/or cluster control information on the second channel.
  • the monitoring of the member control node by the synchronization control node is performed.
  • the cluster fusion failure or success can be determined, and when the result of the cluster fusion fails, the cluster coordination mechanism is started to avoid interference between the two clusters, thereby achieving seamless switching between cluster fusion and cluster coordination.
  • Embodiment 3 of the present invention provides an electronic device comprising the interference coordination device as described in Embodiment 2, which can function as a synchronization control node of a cluster of the first channel in the overlapping channel.
  • FIG. 7 is a schematic diagram showing the structure of an electronic device according to an embodiment of the present invention.
  • the electronic device 700 can include: a central processing unit (CPU) 720 and a memory 710; the memory 710 is coupled to the central processing unit 720.
  • the memory 710 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 720, and stores clustering indication information, cluster monitoring period, and the like.
  • the functionality of the interference coordination device can be integrated into the central processor 720.
  • the central processing unit 720 may be configured to: after adding the cluster on the second channel in the overlapping channel, send cluster fusion indication information on the first channel to indicate a member control node on the first channel Adding a cluster on the second channel; after transmitting the cluster fusion indication information, listening to a beacon service period on the first channel during a predetermined cluster listening period, where the predetermined cluster listening period includes a first listening period and a second listening period; after the first listening period has elapsed, if at least one beacon service period is monitored to be in a non-idle state during the second listening period, a cluster coordination mechanism is initiated on the first channel.
  • the central processing unit 720 is further configured to: transmit, during the predetermined cluster listening period, a beacon frame as a member of the cluster on the second channel on the second channel, and serve as the first channel on the first channel.
  • the synchronization control node of the cluster of the first channel transmits and receives a beacon frame.
  • the central processing unit 720 may be further configured to: if the beacon service period of the cluster on the first channel conflicts with any one of the beacon service periods of the cluster on the second channel, change the first channel The start time of the cluster's beacon service period.
  • the central processing unit 720 can be further configured to: if it is monitored that the at least one beacon service period is a non-idle state during the second listening period, proceed to be the cluster on the second channel on the second channel.
  • the member transmits and receives a beacon frame, and transmits and receives a beacon frame as a synchronization control node of the cluster of the first channel on the first channel.
  • the central processing unit 720 may be further configured to: if all the beacon service periods are monitored to be in an idle state during the second listening period, leave the cluster on the first channel, and stop transmitting and receiving on the first channel. A beacon frame, and a beacon frame is transmitted and received as a member of the cluster on the second channel on the second channel.
  • the central processing unit 720 may be further configured to: the first listening period is an integer multiple of a maximum beacon period allowed by the network or an integer multiple of a beacon period of the cluster on the second channel, where the integer is not less than
  • the synchronization control node of the cluster on the second channel sends the number of minimum beacon periods separated by the beacon frame once; the second listening period is the time required to determine whether a beacon service period is idle.
  • the central processing unit 720 is further configured to: the cluster fusion indication information includes: information indicating that the synchronization control node has joined a cluster on the second channel; and/or cluster control information on the second channel.
  • the interference coordination device can be configured separately from the central processing unit 720.
  • the interference coordination device can be configured as a chip connected to the central processing unit 720, and the function of the interference coordination device can be implemented by the control of the central processing unit 720. .
  • the electronic device 700 may further include: a sensor 701, a transceiver 704, a power module 705, and the like; wherein the functions of the components are similar to those of the prior art, and details are not described herein again. It should be noted that the electronic device 700 does not necessarily have to include all the components shown in FIG. 7. In addition, the electronic device 700 may further include components not shown in FIG. 7, and reference may be made to the prior art.
  • the monitoring of the member control node by the electronic device in the foregoing embodiment of the present invention can determine that the cluster fusion fails or succeeds, and when the judgment result is that the cluster fusion fails, the cluster coordination mechanism is started to avoid interference between the two clusters. This enables seamless switching between cluster fusion and cluster coordination.
  • Embodiment 4 of the present invention provides an interference coordination method, which is a process of a cluster member control node side on a first channel of an overlapping channel corresponding to the method of Embodiment 1, wherein the same content as Embodiment 1 is no longer Repeat the instructions.
  • Figure 8 is a flow chart of the method. Referring to Figure 8, the method includes:
  • Step 801 After receiving the cluster fusion indication information sent by the synchronization control node of the cluster on the first channel, the member control node switches to the second channel of the overlapping channel in the first listening period, and attempts to join the overlap. a cluster on the second channel of the channel, so that after the first listening period, the synchronization control node monitors that at least one beacon service period on the first channel is non-idle state during the second listening period, A cluster coordination mechanism is initiated on the first channel.
  • the member control node receives the cluster fusion indication information sent by the synchronization control node of the cluster on the first channel, and the cluster fusion indication information is as described in Embodiment 1, and is not repeated here.
  • the cluster member controls the node root And according to the second channel control information in the cluster fusion indication information, switching to the second channel of the overlapping channel in the first listening period, attempting to join the cluster on the second channel of the overlapping channel, and starting cluster fusion. Therefore, the synchronization control node can determine whether the cluster fusion is successful in the second listening period, and start the cluster coordination mechanism on the first channel when the judgment result is that the cluster fusion fails.
  • the method of joining the cluster can refer to the IEEE 802.11ad standard, and is not repeated here.
  • the first listening period is used for the period in which the cluster member control node joins the cluster on the second channel, that is, the cluster convergence listening period.
  • the first listening period may be set to the maximum network allowed.
  • An integer multiple of a standard period or an integer multiple of a beacon period of a cluster on the second channel, wherein the integer is not less than a minimum beacon interval at which the synchronization control node of the cluster on the second channel transmits a beacon frame The number of cycles.
  • the specific implementation manner of the first listening period is the same as that of Embodiment 1, and is not repeated here.
  • the member control node if the member control node successfully joins the cluster on the second channel after the end of the first listening period, the member control node leaves the cluster on the first channel and stops at the first channel. Transmitting and transmitting a beacon frame, so that the synchronization control node does not listen to the beacon frame sent by the member control node on the first channel; if the member control node does not successfully join the first listening period a cluster on the second channel, the member control node switches back to the first channel, and continues to transmit and receive beacon frames as members of the cluster on the first channel, so that the synchronous control node can still listen on the first channel. This member controls the beacon frame sent by the node.
  • the interference coordination method of this embodiment will be described below by taking the first channel as the 1.08 GHz channel and the second channel as the 2.16 GHz channel as an example.
  • the member control node of the cluster on the 1.08 GHz channel switches to the 2.16 GHz channel, and attempts to join the 2.16 GHz channel cluster according to the IEEE 802.11ad cluster join method during the first listening period.
  • the member control node At the end of the first listening period, if the cluster on the 2.16 GHz channel is successfully added, the member control node periodically transmits and receives beacon frames on the 2.16 GHz channel according to the IEEE 802.11ad cluster mechanism, while leaving the 1.08 GHz channel. The cluster stops transmitting and receiving beacon frames on the 1.08 GHz channel.
  • the member control node switches back to the 1.08 GHz channel and continues to periodically transmit and receive beacon frames on the 1.08 GHz channel in accordance with the IEEE 802.1 lad cluster mechanism.
  • the synchronization control node on the 1.08 GHz channel can listen to the beacon frame sent by the member control node, and determine that the cluster fusion fails, and thus, the synchronization control node can start the cluster coordination mechanism to avoid interference.
  • An embodiment of the present invention further provides an interference coordination apparatus, where the apparatus is applied to a member control node of a cluster on a first channel of an overlapping channel, and the principle of solving the problem by the interference coordination apparatus is similar to the method of Embodiment 4, and therefore, For the specific implementation, reference may be made to the implementation of the method of Embodiment 4, and the description of the same portions will not be repeated.
  • FIG. 9 is a schematic diagram of the configuration of the interference coordination apparatus.
  • the interference coordination apparatus includes: a first receiving unit 901, which receives a cluster fusion indication sent by a synchronization control node of a cluster on the first channel;
  • a second setting unit 902 which sets a first listening period and a second listening period
  • a first converging unit 903 after receiving the cluster fusion indication information, the first receiving unit 901 switches to the second channel of the overlapping channel in the first listening period, and attempts to join the second channel of the overlapping channel.
  • a cluster so that the synchronization control node of the cluster on the first channel, after the first listening period has elapsed, during the second listening period, when at least one beacon service period on the first channel is monitored is non-idle state.
  • a cluster coordination mechanism is initiated on the first channel.
  • the apparatus further includes: a first processing unit 904;
  • the first processing unit 904 leaves the cluster on the first channel, and stops transmitting and receiving beacon frames on the first channel;
  • the first processing unit 904 switches back to the first channel, and transmits and receives a beacon on the first channel as the first channel cluster member. frame.
  • the second setting unit 902 sets the first listening period as an integer multiple of a maximum beacon period allowed by the network or an integer multiple of a beacon period of the cluster on the second channel, where The integer is not less than the minimum number of beacon periods in which the synchronization control node of the cluster on the second channel sends a beacon frame.
  • the specific setting manner of the first listening period is the same as that in Embodiment 1, and is not repeated here. .
  • the above-mentioned interference coordination apparatus of the present embodiment can determine cluster fusion failure or success, and when the judgment result is cluster fusion failure, start performing a cluster coordination mechanism to avoid interference between the two clusters, thereby implementing cluster fusion and cluster coordination. Seamless switching between.
  • Embodiment 6 of the present invention provides an electronic device comprising the interference coordination device as described in Embodiment 5, which can function as a member control node of a cluster of the first channel in the overlapping channel.
  • FIG. 10 is a schematic diagram showing the structure of an electronic device according to an embodiment of the present invention.
  • the electronic device 1000 can include: a central processing unit (CPU) 1020 and a memory 1010; the memory 1010 is coupled to the central processing unit 1020.
  • the memory 1010 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processor 1020, and stores information such as cluster fusion indication information, a first listening period, and the like.
  • the functionality of the interference coordination device can be integrated into the central processor 1020.
  • the central processing unit 1020 may be configured to: after receiving the cluster fusion indication information sent by the synchronization control node of the cluster on the first channel, switch to the second channel of the overlapping channel in the first listening period, Trying to join the cluster on the second channel of the overlapping channel, so that the synchronization control node of the cluster on the first channel listens to at least one of the first channel during the second listening period after the first listening period When the beacon service period is a non-idle state, the cluster coordination mechanism is started on the first channel.
  • the central processing unit 1020 may be further configured to: if the cluster on the second channel is successfully added after the end of the first listening period, leave the cluster on the first channel, and stop transmitting and receiving on the first channel. If the cluster on the second channel is not successfully joined after the end of the first listening period, the first channel is switched back, and the first channel cluster member transmits and receives a beacon frame on the first channel.
  • the central processing unit 1020 may be further configured to: the first listening period is an integer multiple of a maximum beacon period allowed by the network or an integer multiple of a beacon period of the cluster on the second channel, where the integer is not less than
  • the synchronization control node of the cluster on the second channel controls the number of minimum beacon periods that are separated by the beacon frame.
  • the interference coordination device can be configured separately from the central processing unit 1020.
  • the interference coordination device can be configured as a chip connected to the central processing unit 1020, and the function of the interference coordination device can be implemented by the control of the central processing unit 1020. .
  • the electronic device 1000 may further include: a sensor 1001, a transceiver 1004, a power module 1005, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It is to be noted that the electronic device 1000 does not necessarily have to include all of the components shown in FIG. 10; in addition, the electronic device 1000 may also include components not shown in FIG. 10, and reference may be made to the prior art.
  • the electronic device in the above embodiment of the present invention it is possible to determine that the cluster fusion fails or succeeds, and is judged As a result, when the cluster fusion fails, the cluster coordination mechanism is started to avoid the interference between the two clusters, thereby achieving seamless switching between cluster fusion and cluster coordination.
  • the embodiment of the present invention further provides a communication system, where the communication system includes a synchronization control node and a member control node, the synchronization control node and the member control node are located on a cluster on the first channel, and the first channel overlaps with the second channel. And there is interference between the cluster on the first channel and the cluster on the second channel, where
  • the synchronization control node is configured to: after adding the cluster on the second channel in the overlapping channel, send cluster fusion indication information on the first channel, to indicate that the member control node joins the cluster on the second channel After transmitting the cluster fusion indication information, monitoring a beacon service period on the first channel during a predetermined cluster listening period, where the predetermined cluster listening period includes a first listening period and a second listening period; After the first listening period, if at least one beacon service period is monitored in the second listening period is a non-idle state, a cluster coordination mechanism is initiated on the first channel.
  • the member control node is configured to: after receiving the cluster fusion indication information sent by the synchronization control node, switch to the second channel of the overlapping channel during the first listening period, and try to join the second channel of the overlapping channel. cluster.
  • the synchronization control node may be the electronic device described in Embodiment 3; the member control node may be the electronic device described in Embodiment 6. The content thereof is incorporated herein and will not be described again here.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to execute the embodiment 1 in the interference coordination device or the synchronization control node when the program is executed in an interference coordination device or a synchronization control node The interference coordination method described.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the interference coordination method described in Embodiment 1 in an interference coordination device or a synchronization control node.
  • An embodiment of the present invention further provides a computer readable program, wherein when the program is executed in an interference coordination device or a member control node, the program causes a computer to execute Embodiment 4 in the interference coordination device or member control node The interference coordination method described.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the interference coordination method described in Embodiment 4 in an interference coordination device or a member control node.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Abstract

本发明实施例提供一种干扰协调方法、装置和系统。该方法包括:重叠信道中的第一信道上的簇的同步控制节点在加入了该重叠信道中的第二信道上的簇之后,在该第一信道上发送簇融合指示信息,来指示该第一信道上的成员控制节点加入该第二信道上的簇;该同步控制节点在发送了该簇融合指示信息后,在预定的簇监听时期内监听该第一信道上的信标服务周期,该预定的簇监听时期包括第一监听时期和第二监听时期;在经过了该第一监听时期后,如果在该第二监听时期内监听到至少有一个信标服务周期是非空闲状态,则该同步控制节点在该第一信道上启动簇协调机制。通过本发明的实施例,能够确定簇融合失败或成功,并在判断结果为簇融合失败时,开始执行簇协调机制,避免两簇之间的干扰,由此实现簇融合和簇协调之间的无缝切换。

Description

干扰协调方法、 装置和系统 技术领域
本发明涉及通信领域, 特别涉及一种干扰协调方法、 装置和系统。 背景技术
IEEE (Institute of Electrical and Electronics Engineers, 电气和电子工程师协会) 802. Had标准以及 CWPAN (China Wireless Personal Access Network, 中国无线个域 网) 提出了 60GHz频段的通信。
在 60GHz频段中, 新的信道划分包含了多种带宽, 且不同带宽的信道可能相互 重叠。 图 1是 60GHz频段可能的信道划分示意图, 如图 1所示, 60GHz频段的信道 划分可能包括 2个 2.16GHz的信道以及 4个 1.08GHz的信道。 为了方便说明, 将 2.16GHz的信道称为大带宽 (Large Band, LB ) 信道, 标号为 2和 3, 将 1.08GHz的 信道称为小带宽 (Small Band, SB) 信道, 标号为 5、 6、 7、 8, 其中, 信道 5、 6与 信道 2重叠, 信道 7、 8与信道 3重叠。
在 802.11 ad标准中,为了对各个信道上的网络(也即各个基本服务集( BSS, Basic Service Set) 建立起来的网络) 进行管理, 提出了簇的概念, 每个簇都有一个同步控 制节点和多个成员控制节点, 该同步控制节点除了管理自己建立起来的网络以外,还 要对该多个成员控制节点进行管理。
对于互相重叠的两个信道, 如果这两个信道上的簇共存于同一个网络区域, 如图
2所示, 则这两个簇之间可能存在干扰, 如何避免这种干扰是业界的研究方向。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
目前, 可以通过簇融合或者簇协调的机制来避免上述干扰, 例如, 两簇优先进行 簇融合, 如果簇融合失败, 则开始执行簇协调。 然而, 如何判断簇融合失败, 以及何 时启动簇协调机制并没有被解决。 为了解决上述问题, 本发明实施例提供一种干扰协调方法、 装置和系统, 以避免 两簇之间的干扰, 实现簇融合和簇协调之间的无缝切换。
本发明实施例的第 1方面提供一种干扰协调方法, 其中, 所述方法包括: 重叠信道中的第一信道上的簇的同步控制节点在加入了所述重叠信道中的第二 信道上的簇之后, 在所述第一信道上发送簇融合指示信息,来指示所述第一信道上的 成员控制节点加入所述第二信道上的簇;
所述同步控制节点在发送了所述簇融合指示信息后,在预定的簇监听时期内监听 所述第一信道上的信标服务周期,所述预定的簇监听时期包括第一监听时期和第二监 听时期;
在经过了所述第一监听时期后,如果在所述第二监听时期内监听到至少有一个信 标服务周期是非空闲状态, 则所述同步控制节点在所述第一信道上启动簇协调机制。
本发明实施例的第 2方面提供一种干扰协调装置,应用于重叠信道中的第一信道 上的簇的同步控制节点, 其中, 所述装置包括:
第一发送单元,其在所述同步控制节点加入了所述重叠信道中的第二信道上的簇 之后,在所述第一信道上发送簇融合指示信息, 来指示所述第一信道上的成员控制节 点加入所述第二信道上的簇;
第一设定单元,其设定簇监听时期,所述簇监听时期包括第一监听时期和第二监 听时期;
第一监听单元,其在所述第一发送单元发送了所述簇融合指示信息后,在所述第 一设定单元设定的簇监听时期内监听所述第一信道上的信标服务周期;
第一处理单元,其在经过了所述第一监听时期后, 如果在所述第二监听时期内监 听到至少有一个信标服务周期是非空闲状态,则所述第一处理单元在所述第一信道上 启动簇协调机制。
本发明实施例的第 3方面提供一种干扰协调装置,应用于重叠信道的第一信道上 的簇的成员控制节点, 其中, 所述装置包括:
第一接收单元,其接收所述第一信道上的簇的同步控制节点发送的簇融合指示信 自 .
第二设定单元, 其设定第一监听时期和第二监听时期;
第一融合单元,其在所述第一接收单元接收到所述簇融合指示信息后,在所述第 一监听时期内切换到所述重叠信道的第二信道,尝试加入所述重叠信道的第二信道上 的簇, 以便所述同步控制节点在经过了所述第一监听时期后,在所述第二监听时期内 监听到所述第一信道上有至少一个信标服务周期是非空闲状态时,在所述第一信道上 启动簇协调机制。 本发明实施例的有益效果在于: 通过同步控制节点对成员控制节点进行监听, 能 够确定簇融合是否成功, 如果簇融合失败, 则开始执行簇协调机制, 由此避免了两簇 之间的干扰, 并实现了簇融合和簇协调之间的无缝切换。
参照后文的说明和附图,详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。应该理解, 本发明的实施方式在范围上并不因而受到限制。在 所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的 特征。
应该强调, 术语"包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
所包括的附图用来提供对本发明实施例的进一步的理解,其构成了说明书的一部 分, 用于例示本发明的实施方式, 并与文字描述一起来阐释本发明的原理。 显而易见 地, 下面描述中的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。 在附图中: 图 1是 60GHz频段的信道划分示意图;
图 2是互相重叠的不同带宽的信道上的簇共存于同一网络区域的场景示意图; 图 3为现有技术中 IEEE 802.11ad标准规定的簇机制的示意图;
图 4是本发明实施例 1中干扰协调方法流程图;
图 5是本发明实施例 1中干扰协调方法的一种实施方式流程图;
图 6是本发明实施例 2中干扰协调装置构成示意图;
图 7是本发明实施例 3中的电子设备构成示意图; 图 8是本发明实施例 4中干扰协调方法流程图;
图 9是本发明实施例 5中干扰协调装置构成示意图;
图 10是本发明实施例 6中的电子设备构成示意图。 具体实施方式
参照附图, 通过下面的说明书, 本发明的前述以及其它特征将变得明显。在说明 书和附图中, 具体公开了本发明的特定实施方式,其表明了其中可以采用本发明的原 则的部分实施方式, 在本实施例中, 仅以图 1所示的 60GHz频段上重叠的 1.08GHz 信道和 2.16GHz信道上的簇的干扰协调方法为例对发明实施例进行说明, 应了解的 是, 本发明不限于该场景以及后述的实施方式, 相反, 本发明包括落入所附权利要求 的范围内的全部修改、 变型以及等同物。
为了使本发明实施例的方法、装置和系统更加清楚易懂, 下面对本发明实施例涉 及到的一些术语进行简单说明。
图 3为当前 IEEE 802.11ad标准规定的簇机制的示意图,如图 3所示,在 802.11ad 标准中, 给出了簇的概念。 簇由至少一个控制节点组成。 在不存在簇的情况下, 具有 簇支持能力的控制节点建立一个簇,该控制节点作为簇的同步控制节点可以决定最多 容纳的簇成员数 (ClusterMaxMem, CMM) 以及信标周期 (Beaconlnterval, BI) 以 及其他同步相关信息。
其中,每个信标周期按照簇成员数被划分为多段,每一段的时间间隔称为簇时间 间隔 (ClusterTimelnterval, CTI) , 又称为簇间隔, 也即:
ClusterTimeInterval= Beaconlnterval ÷ ClusterMaxMem。
并且, 在一个信标周期内, 簇偏移时间分别为 ClusterTimeOffset(n), n=l,2 , .. ., ClusterMaxMem 。 从簇偏移 时 间 开始允许信标帧 的传输 , 其 中 , ClusterTimeOffset(n)=(n- 1 ) X ClusterTimelnterval。 信标月艮务周期 ( beacon Service Period, beaconSP ) 为簇偏移开始后足够完成一个信标帧传输的一段时间。
其中, 同步控制节点可以设置其簇偏移时间为 BI中的第一个信标服务周期, 即 ClusterTimeOffset(l)。 其它控制节点作为成员加入该同步控制节点建立的簇时, 首先 监听信道, 以接收该同步控制节点发送的信标帧, 获得信标周期、簇时间间隔等同步 信息。 与该同步控制节点完成同步之后, 再持续监听后续的信标服务周期, 也即 ClusterTimeOffset(n) (n= 2, 3 ...ClusterMaxMem), 并从这些信标服务周期内选择一个 空闲的, 作为自己的信标服务周期, 并将信标周期设置为与该同步控制节点的信标周 期一样。
为了实现簇融合和簇协调之间的无缝切换,本发明实施例提供了一种干扰协调方 法, 如图 1所示的场景中, 簇融合方案的原则是 1.08GHz信道上的节点优先尝试加 入 2.16GHz信道上的簇。在尝试加入过程中, 1.08GHz信道上的簇的同步控制节点持 续监听 1.08GHz信道上的信标服务周期。 当 1.08GHz信道上的簇的所有成员控制节 点都成功加入 2.16GHz信道上的簇, 即在 1.08GHz信道上的簇的 beaconSP不再接收 到信标帧时, 则簇融合完成。 否则, 簇融合失败, 此时, 1.08GHz信道上的簇的同步 控制节点开始执行簇协调机制。 以下结合附图对本发明实施例进行详细说明。 实施例 1
本发明实施例 1提供了一种干扰协调方法, 图 4是该方法的流程图, 该方法应用 于重叠信道中的第一信道上的簇的同步控制节点。 请参照图 4, 该方法包括:
步骤 401, 重叠信道中的第一信道上的簇的同步控制节点在加入了该重叠信道中 的第二信道上的簇之后,在该第一信道上发送簇融合指示信息, 来指示该第一信道上 的成员控制节点加入该第二信道上的簇;
步骤 402, 该同步控制节点在发送了该簇融合指示信息后, 在预定的簇监听时期 内监听该第一信道上的信标服务周期,所述预定的簇监听时期包括第一监听时期和第 二监听时期;
步骤 403, 在经过了该第一监听时期后, 如果在该第二监听时期内监听到至少有 一个信标服务周期是非空闲状态, 则该同步控制节点在该第一信道上启动簇协调机 制。
其中, 非空闲状态是指, 如果在一个信标服务周期收到成员控制节点发送的信标 帧, 则该信标服务周期为非空闲状态。
由上述实施例中的方法可知, 通过同步控制节点对成员控制节点的监听, 能够确 定簇融合失败或成功, 并在判断结果为簇融合失败时, 开始执行簇协调机制, 避免两 簇之间的干扰, 由此实现了簇融合和簇协调之间的无缝切换。
在步骤 401中,重叠信道中第一信道上的簇的同步控制节点先加入该重叠信道中 的第二信道上的簇, 然后, 在该第一信道上发送簇融合指示信息, 来指示该第一信道 上的成员控制节点也加入该第二信道上的簇。
其中, 该同步控制节点可以先切换到上述第二信道, 再按照 IEEE 802.11ad的簇 加入方法加入该第二信道上的簇, 完成该同步控制节点向该第二信道上的簇的融合。 具体的加入方法可以参考 IEEE 802.11ad, 在此不再赘述。
其中,在该同步控制节点加入第二信道上的簇之后,其可以在该第二信道上作为 该第二信道上的簇的成员, 按照该第二信道的簇的规则收发信标帧, 同时其可以继续 在第一信道上作为该第一信道上的簇的同步控制节点, 在自己的信标服务周期 (Beacon SP) 发送信标帧。 其中, 该信标帧可以包括前述簇融合指示信息, 也即, 前述簇融合指示信息可以通过信标帧来携带发送, 但本实施例并不以此作为限制。
其中, 该簇融合指示信息可以包括: 指示该同步控制节点已经加入该第二信道上 的簇的信息; 和 /或该第二信道上的簇控制信息, 例如: 簇 ID、 下一信标周期开始时 间、 信标周期长度等信息, 本实施例并不以此作为限制。
以 1.08GHz的信道上的簇融合到与其重叠的 2.16GHz的信道上的簇为例, 则该 1.08GHz 的信道为上述第一信道, 该 2.16GHz的信道为上述第二信道。 该 1.08GHz 信道上的簇的同步控制节点先切换到 2.16GHz的信道上, 然后按照 IEEE 802.11ad的 簇加入方法加入该 2.16GHz的信道上的簇, 之后, 该同步控制节点按照 2.16GHz信 道上的簇的规则在 2.16GHz信道收发信标帧, 同时继续作为 1.08GHz的信道上的簇 的同步控制节点在其 beacon SP 发送包含该簇融合指示信息的信标帧, 以指示 1.08GHz信道上的成员控制节点加入 2.16GHz信道上的簇。
在步骤 402中,本发明实施例预先设定了一个簇监听时期, 该同步控制节点在发 送了该簇融合指示信息后, 可以在该簇监听时期内监听该第一信道上的 beacon SP, 以判断该第一信道上的成员控制节点是否已经加入该第二信道上的簇。
其中,在该簇监听时期内, 该同步控制节点仍然可以作为该第二信道上的簇的成 员, 按照 IEEE 802.11ad规定的簇机制在该第二信道上收发信标帧, 同时作为该第一 信道上的簇的同步控制节点按照 IEEE 802.11ad规定的簇机制在该第一信道上收发信 标帧, 以实现对第一信道上的信标服务周期的监听。其中, 在该第一信道上发送的信 标帧可以包含前述簇融合指示信息, 也可以不包括, 本实施例并不以此作为限制。 其中, 由于该同步控制节点同时工作在该第一信道和该第二信道上,通过在第二 信道上收发信标帧,可以知道在该第二信道上哪些 beacon SP被占用,哪些 beacon SP 是空闲的,而通过在第一信道上收发信标帧,也可以知道在该第一信道上哪些 beacon SP被占用, 哪些 beacon SP是空闲的。 由此, 如果该同步控制节点发现该第一信道上 的簇的 beacon SP与该第二信道上的簇的任意一个 beacon SP冲突, 则该同步控制节 点可以改变该第一信道上的簇的 beacon SP的开始时间, 以避免干扰。
其中, 该簇监听时期可以分为两段, 也即第一监听时期和第二监听时期, 该第一 监听时期用于该第一信道上的簇的成员控制节点加入该第二信道上的簇,这里简称为 "融合监听时期"; 该第二监听时期用于该同步控制节点判断该第一信道上的簇的成 员控制节点是否全部加入该第二信道上簇, 这里简称为 "协调监听时期"。 通过上述 簇监听时期的设置, 使得同步控制节点能够更准确的确定簇融合是否成功。
在本实施例中,该第一监听时期为网络允许的最大信标周期的整数倍或该第二信 道上的簇的信标周期的整数倍, 其中, 该整数不小于该第二信道上的簇的同步控制节 点每发送一次信标帧所间隔的最小信标周期个数;该第二监听时期为判断一个信标服 务周期是否空闲所需要的时间。
在一个实施方式中, 簇监听时期可以参照如下方法计算:
aMinBTIPeriod xLBBI + aMin ChannelTime;
其中, aMinBTIPeriod为该整数, 簇同步控制节点至少需要在 aMinBTIPeriod个 信标周期内发送一次信标帧, LBBI为第二信道上簇的信标周期, aMinChannelTime为 判断一个 beaconSP 为空闲所需的信道监听时间。 其中, 融合监听时期的时长为 aMinBTIPeriod x LBBI, 协调监听时期的时长为 aMinChannemme。
在另一个实施方式中, 簇监听时期可以参照如下方法计算:
(aMinBTIPeriod + N) aMaxBIDuration + aMinChannelTime;
其中, a w / ¾/rariw7为网络允许的最大信标周期, 融合监听时期时长为
{aMinBTIPeriod + N) x aMaxBIDuration, 协调监听时期时长为 aMinChannelTime, 其 中 N优选为大于等于 2的整数。
以上参数的具体计算方法可以参考现有标准, 此处不再重复。
在步骤 403中,在经过了成员控制节点进行簇融合的该第一监听时期后, 如果该 同步控制节点在该第二监听时期内监听到至少有一个 beacon SP是非空闲状态, 则表 示至少有一个成员控制节点仍然在第一信道上发送信标帧, 也即, 成员控制节点并未 全部加入第二信道上的簇, 则该同步控制节点确定簇融合失败, 由此, 其可以在该第 一信道上启动簇协调机制, 实现簇融合和簇协调的无缝切换。
其中, 如果簇融合失败, 也即, 在该第二监听时期内, 该同步控制节点监听到至 少有一个 beacon SP是非空闲状态, 则该同步控制节点可以继续在该第二信道上作为 该第二信道上的簇的成员收发信标帧,并在该第一信道上作为该第一信道的簇的同步 控制节点收发信标帧, 并开始簇协调机制, 以避免两个簇的信标帧发送相互干扰。其 中, 本发明实施例并不限制具体的簇协调机制, 其可以采用现有技术提出的方法, 也 可以随着技术的发展采用其它有效的簇协调方法,只要是能够避免重叠的两个信道上 的簇的信标帧发送相互干扰的方案, 都包含在本发明实施例的范围之内,在此不再赘 述。
其中, 如果在该第二监听时期内, 该同步控制节点监听到所有 beacon SP都是空 闲状态, 则说明簇融合成功, 也即所有的成员控制节点都加入到了第二信道上的簇, 不再在第一信道上发送信标帧, 则该同步控制节点可以离开该第一信道上的簇,停止 在该第一信道上收发信标帧,并在该第二信道上作为该第二信道上的簇的成员收发信 标帧。
仍以第一信道为 1.08GHz的信道而第二信道为 2.16GHz的信道为例, 如果在协 调监听时期内, 该同步控制节点判断该 1.08GHz 的信道上的簇一个信标周期内所有 beacon SP都是空闲状态,则说明簇融合完成,该同步控制节点离开 1.08GHz信道簇, 停止在 1.08GHz信道上的簇的 beacon SP收发信标帧。 如果在协调监听期内, 该同步 控制节点判断该 1.08GHz的信道上的簇一个信标周期内至少有一个 beacon SP是非空 闲状态, 则说明簇融合失败, 该同步控制节点继续在 2.16GHz信道上作为成员收发 信标帧, 同时在 1.08GHz信道上作为同步控制节点收发信标帧, 并且开始簇协调机 制。
为了使本实施例的方法更加清楚易懂, 下面以 1.08GHz信道上的簇的同步控制 节点的处理流程为例, 对本实施例的方法进行说明。
图 5是本实施例一种干扰协调方法实施方式的流程图, 请参照图 5, 以第一信道 为 1.08GHz 的信道而第二信道为 2.16GHz 的信道为例, 1.08GHz 信道上的簇和 2.16GHz信道上的簇之间存在干扰时,两簇优先进行簇融合,针对 1.08GHz信道上簇 的同步控制节点, 该方法包括:
步骤 501, 1.08GHz信道上的簇的同步控制节点切换到 2.16GHz信道; 步骤 502, 1.08GHz信道上的簇的同步控制节点加入 2.16GHz信道上的簇; 其中, 具体的加入方法与现有技术类似, 此处不再重复。
步骤 503,在加入 2.16GHz信道上的簇之后,在该 2.16GHz信道上作为该 2.16GHz 信道上的簇的成员收发信标帧, 同时继续在 1.08GHz信道上作为该 1.08GHz信道上 的簇的同步控制节点发送信标帧;
其中, 在 1.08GHz 信道上发送的信标帧中包含簇融合指示信息, 来指示该 1.08GHz信道上的成员控制节点也加入该 2.16GHz信道上的簇。
步骤 504, 判断是否经过了第一监听时期, 在判断结果为是时, 执行步骤 505, 否则继续执行步骤 503 ;
步骤 505, 判断信标服务周期是否是非空闲状态, 在判断结果为是时, 执行步骤 506, 否则执行步骤 507;
步骤 506, 该同步控制节点在该 1.08GHz信道上启动簇协调机制;
步骤 507, 判断是否经过了第二监听时期, 在判断结果为是时, 执行步骤 508, 否则返回步骤 505 ;
步骤 508, 离开 1.08GHz信道上的簇, 停止在该 1.08GHz信道上收发信标帧。 通过本实施例的上述干扰协调方法, 通过同步控制节点对成员控制节点的监听, 能够确定簇融合失败或成功, 并在判断结果为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的干扰, 由此实现簇融合和簇协调之间的无缝切换。 实施例 2
本发明实施例还提供了一种干扰协调装置, 该装置应用于重叠信道中的第一信道 上的簇的同步控制节点, 由于该干扰协调装置解决问题的原理与实施例 1 的方法类 似, 因此, 其具体的实施可以参照实施例 1的方法的实施, 内容相同之处不再重复说 明。
图 6是该干扰协调装置的构成示意图, 请参照图 6, 该干扰协调装置包括: 第一发送单元 601, 其在该同步控制节点加入了该重叠信道中的第二信道上的簇 之后,在该第一信道上发送簇融合指示信息, 来指示该第一信道上的成员控制节点加 入该第二信道上的簇;
第一设定单元 602, 其设定簇监听时期, 该簇监听时期包括第一监听时期和第二 监听时期;
第一监听单元 603, 其在该第一发送单元 601发送了该簇融合指示信息后, 在该 第一设定单元 602设定的簇监听时期内监听该第一信道上的信标服务周期;
第一处理单元 604, 其在经过了该第一监听时期后, 如果在该第二监听时期内监 听到至少有一个信标服务周期是非空闲状态,则该第一处理单元 604在该第一信道上 启动簇协调机制。
在本实施例中, 该第一监听单元 603在该簇监听周期内,在该第二信道上作为该 第二信道上的簇的成员收发信标帧,并在该第一信道上作为该第一信道的簇的同步控 制节点收发信标帧。
在本实施例中, 该装置还包括: 第二处理单元 605, 如果该第一信道上的簇的信 标服务周期与该第二信道上的簇的任意一个信标服务周期冲突, 则该第二处理单 605 改变该第一信道上的簇的信标服务周期的开始时间。
在本实施例中,如果在该第二监听时期内监听到至少有一个信标服务周期是非空 闲状态,则该第一监听单元 603继续在该第二信道上作为该第二信道上的簇的成员收 发信标帧, 并在该第一信道上作为该第一信道的簇的同步控制节点收发信标帧。
在本实施例中, 如果在该第二监听时期内监听到所有信标服务周期都是空闲状 态, 则该第一监听单元 603停止在该第一信道上收发信标帧, 并在该第二信道上作为 该第二信道上的簇的成员收发信标帧。
在本实施例中,该第一设定单元 602将该第一监听时期设定为网络允许的最大信 标周期的整数倍或该第二信道上的簇的信标周期的整数倍, 其中, 该整数不小于该第 二信道上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数;将该第 二监听时期为判断一个信标服务周期是否空闲所需要的时间。其中,第一监听时期和 第二监听时期的具体设定方法请参照实施例 1, 此处不再重复。
在本实施例中, 该簇融合指示信息包括: 指示该同步控制节点已经加入该第二信 道上的簇的信息; 和 /或该第二信道上的簇控制信息。
通过本实施例的上述干扰协调装置, 通过同步控制节点对成员控制节点的监听, 能够确定簇融合失败或成功, 并在判断结果为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的干扰, 由此实现簇融合和簇协调之间的无缝切换。 实施例 3
本发明实施例 3提供一种电子设备,该电子设备包括如实施例 2所述的干扰协调 装置, 其可以作为重叠信道中的第一信道的簇的同步控制节点发挥作用。
图 7是本发明实施例的电子设备的构成示意图。 如图 7所示, 该电子设备 700 可以包括: 中央处理器(CPU) 720和存储器 710;存储器 710耦合到中央处理器 720。 其中该存储器 710可存储各种数据; 此外还存储信息处理的程序, 并且在中央处理器 720的控制下执行该程序, 并存储如簇融合指示信息, 簇监听时期等。
在一个实施方式中,干扰协调装置的功能可以被集成到中央处理器 720中。其中, 中央处理器 720可以被配置为: 在加入了该重叠信道中的第二信道上的簇之后,在该 第一信道上发送簇融合指示信息,来指示该第一信道上的成员控制节点加入该第二信 道上的簇; 在发送了该簇融合指示信息后, 在预定的簇监听时期内监听该第一信道上 的信标服务周期, 该预定的簇监听时期包括第一监听时期和第二监听时期; 在经过了 该第一监听时期后,如果在该第二监听时期内监听到至少有一个信标服务周期是非空 闲状态, 则在该第一信道上启动簇协调机制。
其中, 中央处理器 720还可以被配置为: 在该预定的簇监听周期内, 在该第二信 道上作为该第二信道上的簇的成员收发信标帧,并在该第一信道上作为该第一信道的 簇的同步控制节点收发信标帧。
其中, 中央处理器 720还可以被配置为: 如果该第一信道上的簇的信标服务周期 与该第二信道上的簇的任意一个信标服务周期冲突,则改变该第一信道上的簇的信标 服务周期的开始时间。
其中, 中央处理器 720还可以被配置为: 如果在该第二监听时期内监听到至少有 —个信标服务周期是非空闲状态,则继续在该第二信道上作为该第二信道上的簇的成 员收发信标帧, 并在该第一信道上作为该第一信道的簇的同步控制节点收发信标帧。
其中, 中央处理器 720还可以被配置为: 如果在该第二监听时期内监听到所有信 标服务周期都是空闲状态, 则离开该第一信道上的簇,停止在该第一信道上收发信标 帧, 并在该第二信道上作为该第二信道上的簇的成员收发信标帧。 其中, 中央处理器 720还可以被配置为: 该第一监听时期为网络允许的最大信标 周期的整数倍或该第二信道上的簇的信标周期的整数倍, 其中, 该整数不小于该第二 信道上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数;该第二监 听时期为判断一个信标服务周期是否空闲所需要的时间。
其中, 中央处理器 720还可以被配置为: 该簇融合指示信息包括: 指示该同步控 制节点已经加入该第二信道上的簇的信息; 和 /或该第二信道上的簇控制信息。
在另一个实施方式中,干扰协调装置可以与中央处理器 720分开配置,例如可以 将干扰协调装置配置为与中央处理器 720连接的芯片,通过中央处理器 720的控制来 实现干扰协调装置的功能。
此外, 如图 7所示, 该电子设备 700还可以包括: 传感器 701、 收发器 704和电 源模块 705等; 其中, 上述部件的功能与现有技术类似, 此处不再赘述。 值得注意的 是, 该电子设备 700也并不是必须要包括图 7中所示的所有部件; 此外, 电子设备 700还可以包括图 7中没有示出的部件, 可以参考现有技术。
通过本发明的上述实施例中的电子设备对成员控制节点的监听,能够确定簇融合 失败或成功, 并在判断结果为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的 干扰, 由此实现簇融合和簇协调之间的无缝切换。
实施例 4
本发明实施例 4提供了一种干扰协调方法,该方法是与实施例 1的方法对应的重 叠信道的第一信道上的簇成员控制节点侧的处理,其中与实施例 1相同的内容不再重 复说明。 图 8是该方法的流程图, 请参照图 8, 该方法包括:
步骤 801, 该成员控制节点在收到该第一信道上的簇的同步控制节点发送的簇融 合指示信息后, 在第一监听时期内切换到所述重叠信道的第二信道, 尝试加入该重叠 信道的第二信道上的簇, 以便该同步控制节点在经过了该第一监听时期后,在第二监 听时期内监听到该第一信道上有至少一个信标服务周期是非空闲状态时,在该第一信 道上启动簇协调机制。
在本实施例中,成员控制节点接收第一信道上的簇的同步控制节点发送的簇融合 指示信息, 该簇融合指示信息如实施例 1所述, 此处不再重复。该簇成员控制节点根 据该簇融合指示信息中的第二信道控制信息,在第一监听时期内切换到该重叠信道的 第二信道, 尝试加入该重叠信道的第二信道上的簇, 开始进行簇融合。 由此, 该同步 控制节点可以在第二监听时期内判断簇融合是否成功, 在判断结果为簇融合失败时, 在该第一信道上启动簇协调机制。 其中, 加入簇的方法可参考 IEEE 802.11ad标准, 此处不再重复。
在本实施例中,该第一监听时期用于该簇成员控制节点加入该第二信道上的簇的 时期, 即簇融合监听时期, 具体的, 第一监听时期可以设置为网络允许的最大信标周 期的整数倍或该第二信道上的簇的信标周期的整数倍, 其中, 该整数不小于该第二信 道上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数。第一监听时 期的具体实施方式与实施例 1相同, 此处不再重复。
在本实施例中, 如果在该第一监听时期结束后, 该成员控制节点成功加入该第二 信道上的簇, 则该成员控制节点离开该第一信道上的簇,停止在该第一信道上收发信 标帧, 由此该同步控制节点不会在该第一信道上监听到该成员控制节点发送的信标 帧;如果在该第一监听时期结束后,该成员控制节点没有成功加入该第二信道上的簇, 则该成员控制节点切换回该第一信道, 继续作为该第一信道上簇的成员收发信标帧, 由此该同步控制节点仍然能在该第一信道上监听到该成员控制节点发送的信标帧。
下面以第一信道为 1.08GHz信道, 第二信道为 2.16GHz信道为例, 对本实施例 的干扰协调方法进行说明。
例如, 1.08GHz 信道上的簇的成员控制节点在收到簇融合指示信息后, 切换到 2.16GHz信道,在第一监听时期内,按照 IEEE 802.11ad簇加入方法尝试加入 2.16GHz 信道簇。
在该第一监听时期结束时, 如果成功加入 2.16GHz信道上的簇, 则该成员控制 节点则按照 IEEE 802.11ad簇机制在 2.16GHz信道上周期性的收发信标帧, 同时离开 1.08GHz信道上的簇, 停止在 1.08GHz信道上收发信标帧。
在该第一监听时期结束时, 如果加入 2.16GHz信道上的簇失败, 则该成员控制 节点切换回 1.08GHz信道,继续按照 IEEE 802.1 lad簇机制在 1.08GHz信道上周期性 的收发信标帧。这时, 1.08GHz信道上的同步控制节点可以监听到该成员控制节点发 送的信标帧, 并判定为簇融合失败, 由此, 该同步控制节点可以启动簇协调机制实现 避免干扰。 通过本实施例的上述干扰协调方法, 能够确定簇融合失败或成功, 并在判断结果 为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的干扰, 由此实现簇融合和簇 协调之间的无缝切换。 实施例 5
本发明实施例还提供了一种干扰协调装置, 该装置应用于重叠信道的第一信道上 的簇的成员控制节点, 由于该干扰协调装置解决问题的原理与实施例 4的方法类似, 因此, 其具体的实施可以参照实施例 4的方法的实施, 内容相同之处不再重复说明。
图 9是该干扰协调装置的构成示意图, 请参照, 该干扰协调装置包括: 第一接收单元 901, 其接收该第一信道上的簇的同步控制节点发送的簇融合指示 in息;
第二设定单元 902, 其设定第一监听时期和第二监听时期;
第一融合单元 903, 其在该第一接收单元 901接收到该簇融合指示信息后, 在该 第一监听时期内切换到该重叠信道的第二信道,尝试加入该重叠信道的第二信道上的 簇, 以便该第一信道上簇的同步控制节点在经过了该第一监听时期后,在该第二监听 时期内监听到该第一信道上有至少一个信标服务周期是非空闲状态时,在该第一信道 上启动簇协调机制。
在本实施例中, 该装置还包括: 第一处理单元 904;
如果在该第一监听时期结束后成功加入该第二信道上的簇, 则该第一处理单元 904离开该第一信道上的簇, 停止在该第一信道上收发信标帧;
如果在该第一监听时期结束后没有成功加入该第二信道上的簇,则该第一处理单 元 904切换回该第一信道, 作为该第一信道簇成员在该第一信道上收发信标帧。
在本实施例中,该第二设定单元 902将该第一监听时期设定为网络允许的最大信 标周期的整数倍或该第二信道上的簇的信标周期的整数倍, 其中, 该整数不小于该第 二信道上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数,第一监 听时期的具体设置方式与实施例 1相同, 此处不再重复。
通过本实施例的上述干扰协调装置, 能够确定簇融合失败或成功, 并在判断结果 为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的干扰, 由此实现簇融合和簇 协调之间的无缝切换。 实施例 6
本发明实施例 6提供一种电子设备,该电子设备包括如实施例 5所述的干扰协调 装置, 其可以作为重叠信道中的第一信道的簇的成员控制节点发挥作用。
图 10是本发明实施例的电子设备一构成示意图。 如图 10所示, 电子设备 1000 可以包括: 中央处理器(CPU) 1020和存储器 1010; 存储器 1010耦合到中央处理器 1020。 其中该存储器 1010可存储各种数据; 此外还存储信息处理的程序, 并且在中 央处理器 1020的控制下执行该程序, 并存储如簇融合指示信息, 第一监听时期等。
在一个实施方式中, 干扰协调装置的功能可以被集成到中央处理器 1020中。 其 中, 中央处理器 1020可以被配置为: 在收到该第一信道上的簇的同步控制节点发送 的簇融合指示信息后,在该第一监听时期内切换到该重叠信道的第二信道, 尝试加入 该重叠信道的第二信道上的簇,以便该第一信道上簇的同步控制节点在经过了该第一 监听时期后,在第二监听时期内监听到该第一信道上有至少一个信标服务周期是非空 闲状态时, 在该第一信道上启动簇协调机制。
其中, 中央处理器 1020还可以被配置为: 如果在该第一监听时期结束后成功加 入该第二信道上的簇, 则离开该第一信道上的簇, 停止在该第一信道上收发信标帧; 如果在该第一监听时期结束后没有成功加入该第二信道上的簇,则切换回该第一 信道, 作为该第一信道簇成员在该第一信道上收发信标帧。
其中, 中央处理器 1020还可以被配置为: 该第一监听时期为网络允许的最大信 标周期的整数倍或该第二信道上的簇的信标周期的整数倍, 其中, 该整数不小于该第 二信道上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数。
在另一个实施方式中, 干扰协调装置可以与中央处理器 1020分开配置, 例如可 以将干扰协调装置配置为与中央处理器 1020连接的芯片,通过中央处理器 1020的控 制来实现干扰协调装置的功能。
此外, 如图 10所示, 电子设备 1000还可以包括: 传感器 1001、 收发器 1004和 电源模块 1005等; 其中, 上述部件的功能与现有技术类似, 此处不再赘述。 值得注 意的是, 电子设备 1000也并不是必须要包括图 10中所示的所有部件; 此外, 电子设 备 1000还可以包括图 10中没有示出的部件, 可以参考现有技术。
通过本发明的上述实施例中的电子设备, 能够确定簇融合失败或成功, 并在判断 结果为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的干扰, 由此实现簇融合 和簇协调之间的无缝切换。
实施例 7
本发明实施例还提供一种通信系统,该通信系统包括同步控制节点和成员控制节 点, 该同步控制节点和该成员控制节点位于第一信道上的簇, 该第一信道与第二信道 重叠, 且该第一信道上的簇与该第二信道上的簇之间存在干扰, 其中,
该同步控制节点被配置为: 在加入了该重叠信道中的第二信道上的簇之后,在该 第一信道上发送簇融合指示信息, 来指示该成员控制节点加入该第二信道上的簇; 在 发送了该簇融合指示信息后,在预定的簇监听时期内监听该第一信道上的信标服务周 期, 该预定的簇监听时期包括第一监听时期和第二监听时期; 在经过了该第一监听时 期后, 如果在该第二监听时期内监听到至少有一个信标服务周期是非空闲状态, 则在 该第一信道上启动簇协调机制。
该成员控制节点被配置为: 在收到该同步控制节点发送的簇融合指示信息后,在 第一监听时期内切换到该重叠信道的第二信道,尝试加入该重叠信道的第二信道上的 簇。
在本实施例中, 同步控制节点可以是实施例 3中所述的电子设备; 成员控制节点 可以是实施例 6所述的电子设备。 其内容被合并于此, 在此不再赘述。
通过本发明的上述实施例中的通信系统, 能够确定簇融合失败或成功, 并在判断 结果为簇融合失败时, 开始执行簇协调机制, 避免两簇之间的干扰, 由此实现簇融合 和簇协调之间的无缝切换。 本发明实施例还提供一种计算机可读程序,其中当在干扰协调装置或同步控制节 点中执行所述程序时,所述程序使得计算机在所述干扰协调装置或同步控制节点中执 行实施例 1所述的干扰协调方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在干扰协调装置或同步控制节点中执行实施例 1 所述的干扰协调 方法。 本发明实施例还提供一种计算机可读程序,其中当在干扰协调装置或成员控制节 点中执行所述程序时,所述程序使得计算机在所述干扰协调装置或成员控制节点中执 行实施例 4所述的干扰协调方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质,其中所述计算机可 读程序使得计算机在干扰协调装置或成员控制节点中执行实施例 4 所述的干扰协调 方法。 本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。逻辑 部件例如现场可编程逻辑部件、 微处理器、 计算机中使用的处理器等。本发明还涉及 用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器等。
以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚,这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

权 利 要 求 书
1、 一种干扰协调方法, 其中, 所述方法包括:
重叠信道中的第一信道上的簇的同步控制节点在加入了所述重叠信道中的第二 信道上的簇之后, 在所述第一信道上发送簇融合指示信息,来指示所述第一信道上的 成员控制节点加入所述第二信道上的簇;
所述同步控制节点在发送了所述簇融合指示信息后,在预定的簇监听时期内监听 所述第一信道上的信标服务周期,所述预定的簇监听时期包括第一监听时期和第二监 听时期;
在经过了所述第一监听时期后,如果在所述第二监听时期内监听到至少有一个信 标服务周期是非空闲状态, 则所述同步控制节点在所述第一信道上启动簇协调机制。
2、 根据权利要求 1所述的方法, 其中, 所述方法还包括:
所述同步控制节点在所述预定的簇监听周期内,在所述第二信道上作为所述第二 信道上的簇的成员收发信标帧,并在所述第一信道上作为所述第一信道的簇的同步控 制节点收发信标帧。
3、 根据权利要求 2所述的方法, 其中, 所述方法还包括:
如果所述第一信道上的簇的信标服务周期与所述第二信道上的簇的任意一个信 标服务周期冲突,则所述同步控制节点改变所述第一信道上的簇的信标服务周期的开 始时间。
4、 根据权利要求 1所述的方法, 其中, 如果在所述第二监听时期内监听到至少 有一个信标服务周期是非空闲状态,则所述同步控制节点继续在所述第二信道上作为 所述第二信道上的簇的成员收发信标帧,并在所述第一信道上作为所述第一信道的簇 的同步控制节点收发信标帧。
5、 根据权利要求 1所述的方法, 其中, 如果在所述第二监听时期内监听到所有 信标服务周期都是空闲状态, 则所述同步控制节点离开所述第一信道上的簇,停止在 所述第一信道上收发信标帧,并在所述第二信道上作为所述第二信道上的簇的成员收 发信标帧。
6、 根据权利要求 1所述的方法, 其中, 所述第一监听时期为网络允许的最大信标周期的整数倍或所述第二信道上的簇 的信标周期的整数倍,其中, 所述整数不小于所述第二信道上的簇的同步控制节点每 发送一次信标帧所间隔的最小信标周期个数;
所述第二监听时期为判断一个信标服务周期是否空闲所需要的时间。
7、 根据权利要求 1所述的方法, 其中, 所述簇融合指示信息包括:
指示所述同步控制节点已经加入所述第二信道上的簇的信息; 和 /或
所述第二信道上的簇控制信息。
8、 一种干扰协调装置, 应用于重叠信道中的第一信道上的簇的同步控制节点, 其中, 所述装置包括:
第一发送单元,其在所述同步控制节点加入了所述重叠信道中的第二信道上的簇 之后,在所述第一信道上发送簇融合指示信息, 来指示所述第一信道上的成员控制节 点加入所述第二信道上的簇;
第一设定单元,其设定簇监听时期,所述簇监听时期包括第一监听时期和第二监 听时期;
第一监听单元,其在所述第一发送单元发送了所述簇融合指示信息后,在所述第 一设定单元设定的簇监听时期内监听所述第一信道上的信标服务周期;
第一处理单元,其在经过了所述第一监听时期后, 如果在所述第二监听时期内监 听到至少有一个信标服务周期是非空闲状态,则所述第一处理单元在所述第一信道上 启动簇协调机制。
9、根据权利要求 8所述的装置, 其中, 所述第一监听单元在所述簇监听周期内, 在所述第二信道上作为所述第二信道上的簇的成员收发信标帧,并在所述第一信道上 作为所述第一信道的簇的同步控制节点收发信标帧。
10、 根据权利要求 9所述的装置, 其中, 所述装置还包括: 第二处理单元; 如 果所述第一信道上的簇的信标服务周期与所述第二信道上的簇的任意一个信标服务 周期冲突, 则所述第二处理单元改变所述第一信道上的簇的信标服务周期的开始时 间。
11、 根据权利要求 8所述的装置, 其中, 如果在所述第二监听时期内监听到至少 有一个信标服务周期是非空闲状态,则所述第一监听单元继续在所述第二信道上作为 所述第二信道上的簇的成员收发信标帧,并在所述第一信道上作为所述第一信道的簇 的同步控制节点收发信标帧。
12、根据权利要求 8所述的装置, 其中, 如果在所述第二监听时期内监听到所有 信标服务周期都是空闲状态, 则所述第一监听单元停止在所述第一信道上收发信标 帧, 并在所述第二信道上作为所述第二信道上的簇的成员收发信标帧。
13、 根据权利要求 8所述的装置, 其中,
所述第一设定单元将所述第一监听时期设定为网络允许的最大信标周期的整数 倍或所述第二信道上的簇的信标周期的整数倍,其中,所述整数不小于所述第二信道 上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数;
所述第一设定单元将所述第二监听时期设定为判断一个信标服务周期是否空闲 所需要的时间。
14、 根据权利要求 8所述的装置, 其中, 所述簇融合指示信息包括: 指示所述同步控制节点已经加入所述第二信道上的簇的信息; 和 /或
所述第二信道上的簇控制信息。
15、 一种干扰协调装置, 应用于重叠信道的第一信道上的簇的成员控制节点, 其 中, 所述装置包括:
第一接收单元,其接收所述第一信道上的簇的同步控制节点发送的簇融合指示信 自 .
第二设定单元, 其设定第一监听时期和第二监听时期;
第一融合单元,其在所述第一接收单元接收到所述簇融合指示信息后,在所述第 一监听时期内切换到所述重叠信道的第二信道,尝试加入所述重叠信道的第二信道上 的簇, 以便所述同步控制节点在经过了所述第一监听时期后,在所述第二监听时期内 监听到所述第一信道上有至少一个信标服务周期是非空闲状态时,在所述第一信道上 启动簇协调机制。
16、 根据权利要求 15所述的装置, 其中, 所述装置还包括: 第一处理单元; 如果在所述第一监听时期结束后成功加入所述第二信道上的簇,则所述第一处理 单元离开所述第一信道上的簇, 停止在所述第一信道上收发信标帧;
如果在所述第一监听时期结束后没有成功加入所述第二信道上的簇,则所述第一 处理单元切换回所述第一信道,作为所述第一信道簇成员在所述第一信道上收发信标 帧。
17、 根据权利要求 15所述的装置, 其中,
所述第二设定单元将所述第一监听时期设定为网络允许的最大信标周期的整数 倍或所述第二信道上的簇的信标周期的整数倍,其中,所述整数不小于所述第二信道 上的簇的同步控制节点每发送一次信标帧所间隔的最小信标周期个数。
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