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Scheduling method and device for reducing inter-cell interference

A technology of inter-cell interference and scheduling method, applied in the direction of electrical components, wireless communication, etc., can solve the problems of not considering inter-cell interference factors, resource occupation, interference, etc.

Inactive Publication Date: 2011-11-23
POTEVIO INFORMATION TECH
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Problems solved by technology

[0005] Currently, the ordering of scheduling priorities in the LTE system does not consider the interference factors between cells. In this way, when there is already an interfering UE in the cell, if the scheduling priority of the interfering UE is low, the eNode B cannot reschedule the UE as soon as possible. The interference source UE will not allocate other resources for the interference source UE, so that the interference source UE occupies the interfered resources for a long time, which will cause repeated interference

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Embodiment Construction

[0021] The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

[0022] figure 1 It is a flow chart of the scheduling method for reducing inter-cell interference in the present invention, and the process includes:

[0023] Step 11: The eNode B receives the OI sent by the neighboring cell, and analyzes the interference source UE and the interfered PRB reported by the OI.

[0024] In this step, after receiving the OI sent by the neighboring cell, the eNode B may save the OI first, and analyze the saved OI after a processing cycle. The processing cycle mentioned here refers to a fixed time window. When the eNode B continuously receives the OI sent by the neighboring cell, it can continuously save the rec...

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Abstract

The invention provides a scheduling method and a scheduling method device for reducing inter-cell interference. The method comprises the following steps of: analyzing overload indication transmitted by neighbor cells through a base station to obtain interference source user equipment and a corresponding interfered physical resource block thereof; setting a scheduling priority of the interference source user equipment to be higher than those of other user equipment; and selecting other physical resource blocks except the corresponding interfered physical resource block in the process of scheduling the interference source user equipment. By the method, the interference source user equipment causing interference can be timely scheduled, so that the interference source user equipment timely departs from the interfered physical resource block, and repeated interference is avoided.

Description

technical field [0001] The present invention relates to the field of Long Term Evolution (LTE) of Universal Mobile Telecommunications System (Universal Mobile Telecommunication System, UMTS), and in particular to a scheduling method and device for reducing inter-cell interference in the LTE system. Background technique [0002] In order to improve resource utilization, the resource scheduling technology is adopted in the LTE system, so that multiple user equipments (User Equipment, UE) in multiple cells can share wireless resources. (PRB). [0003] At present, in the LTE system, scheduling is performed according to scheduling priorities, and the ranking of scheduling priorities is determined by calculating priority factors, which include user throughput, data packet delay, and the like. [0004] Interference between cells is an inherent problem in cellular mobile communication systems, and LTE systems are no exception. Currently, the LTE system adopts a scheme based on Hig...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
Inventor 洪伟姜春霞
Owner POTEVIO INFORMATION TECH
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