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A frequency planning method and device

A frequency planning and planning technology, applied in the field of communication applications, can solve problems such as downlink user interference and base station interference, and achieve the effect of solving the interference of communication between base stations

Active Publication Date: 2019-06-14
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a frequency planning method and device to solve the problem of interference between uplink users to downlink users in the same cell or adjacent cells and interference between base stations in the existing full-duplex communication system

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to specific embodiments and accompanying drawings.

[0035] For cellular systems with full-duplex base stations and half-duplex mobile phones, in addition to the uplink-to-uplink interference and downlink-to-downlink interference between same-frequency cells that exist in traditional half-duplex systems, full-duplex systems also exist: (1) Between base stations Interference; (2) Inter-user interference, that is, the uplink user interferes with the downlink user in the same cell or adjacent cell.

[0036] One of the problems faced by the full-duplex cellular system is how to solve the adverse effects of the above-mentioned interference on the communication system. The key to solving this problem is how to coordinate frequency resources, reduce co-channel interference, and ensure the utilization of f...

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Abstract

The invention provides a frequency planning method and device, for solving the interference problem between an uplink user in an existing full duplex communication system and a downlink user in the same cell / a neighbor cell and between base stations. The frequency planning method provided by the invention comprises the following steps: carrying out sector division on a first cell, setting an uplink frequency resource set and a downlink frequency resource set in each sector in the first cell, and making each sector in the first cell have different uplink frequency resource sets and downlink frequency resource sets; and carrying out sector division on a second cell adjacent to the first cell, setting the uplink frequency resource set and the downlink frequency resource set in each sector in the second cell, and making each sector in the second cell have different uplink frequency resource sets and downlink frequency resource sets, wherein the first sector of the first cell and the second sector of the second cell have the same uplink frequency resource set and the same downlink frequency resource set, and the first sector and the second sector are adjacent sectors.

Description

technical field [0001] The present invention relates to the technical field of communication applications, in particular to a frequency planning method and device. Background technique [0002] In cellular wireless communication systems, co-frequency multiplexing is a widely used technology, which will lead to co-frequency interference in adjacent cells, while co-frequency simultaneous full-duplex allows signal transmission and communication at the same time and at the same frequency. Reception will introduce more dimensions of co-channel interference. [0003] The existing co-channel interference coordination methods used in traditional half-duplex cellular systems can be divided into static frequency planning and dynamic scheduling: static frequency planning is to set the frequency range used by each cell in advance, and the system is simple; dynamic scheduling Certain interference measurement information needs to be reported by the mobile terminal, and the system perform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18
Inventor 潘成康马猛焦秉立冯程
Owner CHINA MOBILE COMM GRP CO LTD