Group scheduling method and system between base stations based on interference coordination

A technology of interference coordination and group scheduling, applied in electrical components, wireless communication, broadcast service allocation, etc., can solve problems such as insufficient utilization of time resources and low probability of edge user terminals competing for channels

Inactive Publication Date: 2016-07-27
SHANGHAI RES CENT FOR WIRELESS COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a group scheduling method and system based on interference coordination between base stations, which is used to solve the problem of grouping adjacent basic service sets based on time slices in the prior art. When edge user terminals allocate mutually orthogonal time slice resources to avoid co-channel interference, there will be problems such as low probability of edge user terminals competing for channels and insufficient utilization of time resources

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  • Group scheduling method and system between base stations based on interference coordination
  • Group scheduling method and system between base stations based on interference coordination
  • Group scheduling method and system between base stations based on interference coordination

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Embodiment 1

[0078] The group scheduling method based on interference coordination between base stations described in this embodiment is applied to a communication network composed of multiple adjacent basic service sets (BBS), and each basic service set (BBS) includes one base station (AP) and N user terminals (STAs) associated with the base station, where N is greater than or equal to 1. see Figure 7 , is shown as a schematic flowchart of a group scheduling method based on interference coordination between base stations. and see Figure 8 , is shown as a real scene diagram of an implementation manner of a group scheduling method based on interference coordination between base stations. In this embodiment, only downlink conditions are considered. Such as Figure 7 As shown, the group scheduling method based on interference coordination between base stations includes:

[0079] S1. Divide N user terminals under the basic service set into edge user terminals or non-edge user terminals....

Embodiment 2

[0099] The group scheduling system 1 based on interference coordination between base stations described in this embodiment is applied to a communication network composed of multiple adjacent basic service sets, and each basic service set includes one base station and N associated with the base station An edge user terminal, where N is greater than or equal to 1. see Figure 10 , is shown as a schematic structural diagram of a group scheduling system based on interference coordination between base stations. The group scheduling system 1 based on interference coordination between base stations includes: an initial division module 11, a predefined module 12, an acquisition module 13, a matrix creation module 14, a search Combining module 15 and calling module 16 .

[0100] The initial division module is configured to divide the N user terminals under the basic service set into edge user terminals or non-edge user terminals. . The predefinition module 12 connected to the initia...

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Abstract

The invention provides a group scheduling method between base stations based on interference coordination, and the method comprises the following steps: enabling N user terminals in a basic service set to serve as edge user terminals or non-edge user terminals; defining each base station and each edge user terminal correlated with the base station as a transmitting-receiving/receiving-transmitting pair; obtaining the emission performance requirements for each edge user terminal or base station serving as a transmitting end under the condition that each base station or edge user terminal serving as a receiving end is not affected by co-channel interference; building a compatibility matrix formed based on the transmitting-receiving/receiving-transmitting pair; searching the transmitting-receiving/receiving-transmitting pair with the emission performance requirements being able to coexist in the compatibility matrix according to the emission performance requirements of the receiving end for the transmitting end, and forming a scheduling group through the transmitting-receiving/receiving-transmitting pair; and carrying out the call of the scheduling group. According to the invention, the method carries out flexible group selection according to the demands for current business, does not need to divide an orthogonal time slice, makes the most of time resources for business interaction, improves the probability that an edge user obtains a channel, and improves the user experience of the edge user.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a scheduling method and system, in particular to a group scheduling method and system based on interference coordination between base stations. Background technique [0002] In densely deployed indoor WiFi scenarios, or in outdoor WiFi coverage scenarios that support sub-1G IEEE802.11ah, co-frequency coverage is more likely to cause co-channel interference. For example, 802.11n / 11ac that supports large bandwidth is dense Deployment scenarios, and outdoor macro coverage scenarios that support 802.11ah in the sub-1G frequency band. In the cellular mobile cellular networking technology, there are some relatively mature Inter-Cell Interference Coordination (ICIC) implementations for intra-frequency networking, some based on frequency partition and some based on time partition. But WiFi has its own particularity, for example, it does not support frequency domain scheduli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W4/08
Inventor 黄蕾闫剑龙钱骅
Owner SHANGHAI RES CENT FOR WIRELESS COMM
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