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A resource scheduling and allocation method and system in an orthogonal frequency division multiplexing system

A technology of orthogonal frequency division and resource scheduling, applied in the field of communication to achieve the effect of increasing traffic

Inactive Publication Date: 2018-02-23
北京享阅教育科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the above problems, the present invention is proposed. The present invention provides a resource scheduling and allocation method and system in an OFDM system to solve the problem of realizing sector traffic without adding additional signaling overhead and ensuring sector traffic as much as possible. Coordination of inter-zone interference to improve the flow of edge terminals

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  • A resource scheduling and allocation method and system in an orthogonal frequency division multiplexing system
  • A resource scheduling and allocation method and system in an orthogonal frequency division multiplexing system
  • A resource scheduling and allocation method and system in an orthogonal frequency division multiplexing system

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Embodiment 1

[0082] Embodiment 1 provides a method and process for inter-sector interference coordination scheduling in an OFDM distributed antenna system. In the distributed antenna system, RRUs (Radio Remote Units) of each sector are located in different geographic locations, and each sector The BBU (Baseband Unit) of the zone is in the same geographical location, and the information of each sector can be processed independently by its own BBU. At the same time, there is a CU (Central Processing Unit), which can conveniently read the data of each sector and perform unified processing , the BBUs and CUs of the various sectors gathered together are collectively referred to as a super base station. This embodiment provides a method and process for inter-sector interference coordination scheduling, as shown in figure 1 As shown, the following steps may be included:

[0083] Step S101, the terminal periodically reports RSRQ measurement information;

[0084] Wherein, the measurement informati...

Embodiment 2

[0116] This embodiment provides a method and process for inter-sector interference coordination scheduling in OFDM systems other than distributed antenna systems. In this system, information is interactively transmitted between sectors through optical fibers. The information is independently processed by their respective BBUs, and there is a CU (Central Processing Unit), which can be located in a certain sector entity, or an independent entity, and is connected to the adjacent sector base station through optical fiber for information exchange , the central processing unit is called a super base station, and all the sectors connected to it are called the adjacent sectors of the super base station, all of which can be controlled by the super base station. This embodiment provides a specific inter-sector interference coordination scheduling method and process, which can include the following steps:

[0117] Step S101, the terminal periodically reports RSRQ measurement information...

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Abstract

The present invention provides a method and system for resource scheduling and allocation in an OFDM system. The method includes: the super base station or each base station under the super base station determines the coordination sector set of the terminal, and the center of each sector or each base station The processing unit pre-allocates resources for the terminal, and the super base station adjusts the allocation result so that edge terminals with the same set of coordinated sectors are allocated to different resource blocks. The technical scheme of the invention is adopted to solve the problem of realizing inter-sector interference coordination and improving the flow rate of edge terminals without increasing additional signaling overhead and ensuring sector flow as much as possible.

Description

technical field [0001] The present invention relates to the communication field, in particular to a resource scheduling and allocation method and system for multi-sector joint processing in an Orthogonal Frequency Division Multiplexing (abbreviated as OFDM) system. Background technique [0002] The distributed antenna system is a new type of network architecture, which is also called Coordinative Multiple Point (COMP) transmission in the LTE-A (Long term evaluation-Advanced) system. In this new architecture, the relative The baseband units of several adjacent base stations are concentrated in a super base station to form a centralized BBU (Baseband Unit, baseband unit). The intermediate frequency or radio frequency signal generated by the BBU is transmitted to each wireless remote unit (Radio Remote Unit, RRU) through the RoF fiber. ), the antenna station. The antenna stations in the distributed antenna system can be regarded as multiple sectors of the super base station, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W72/12H04L27/26H04W72/54
Inventor 赵梓淳
Owner 北京享阅教育科技有限公司
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