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PDCCH scheduling method, base station and storage medium

A scheduling method and storage medium technology, applied in the field of communication, can solve problems such as affecting the scheduling of base station terminals, interfering with PDCCH, etc., to achieve the effect of avoiding interference

Pending Publication Date: 2021-05-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The PDCCH scheduling method, base station, and storage medium provided by the embodiments of the present invention mainly solve the technical problem of how to solve the problem that GSM and other communication systems interfere with the PDCCH in the LTE communication system and affect the scheduling of terminals by the base station in the spectrum sharing and coexistence scenario

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  • PDCCH scheduling method, base station and storage medium
  • PDCCH scheduling method, base station and storage medium
  • PDCCH scheduling method, base station and storage medium

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Embodiment 1

[0027] Spectrum sharing and coexistence can improve spectrum utilization, for example, Magic Radio technology, non-standard bandwidth technology, etc. In addition to spectrum sharing between LTE and GSM or UMTS, with the advent of 5G, there will also be a large number of different forms of 4G and 5G joint networking at different stages of 5G network development. In the scenario where these different systems coexist, how to share? Maximizing the use of spectrum resources is a topic of great concern to both communication operators and equipment manufacturers. To fully carry out spectrum sharing or coexistence, the first thing is to solve the problem of spectrum resource conflict, that is, how to separate channels under different systems in terms of physical resources, and to minimize waste. For this, this embodiment provides a PDCCH scheduling method, please refer to figure 1 A flowchart of the PDCCH scheduling method shown:

[0028] S102: The base station determines a mapping...

Embodiment 2

[0071] In order to make those skilled in the art more aware of the advantages and details of the PDCCH scheduling method provided by the embodiment of the present invention, this embodiment will continue to illustrate the PDCCH scheduling method in the foregoing embodiments with examples:

example 1

[0072] Example 1——Application of PDCCH scheduling method in spectrum sharing scenarios of LTE communication system and GSM communication system:

[0073] In the spectrum sharing scenario of the LTE communication system and the GSM communication system, since the mapping from CCE to REG in the LTE communication system is interleaved in the full bandwidth, the PDCCH channel cannot avoid the frequency spectrum where the GSM carrier is located, so the GSM communication system will The PDCCH at the frequency spectrum produces strong interference, which causes DCI parsing failure. A common practice at this time is that the LTE communication system performs a blind attempt by increasing the CCE aggregation degree. However, this solution wastes system resources and lacks effectiveness. Moreover, if there are many carriers in the shared GSM communication system, the number of blind attempts will also increase accordingly, and the system performance will deteriorate sharply. As a resu...

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Abstract

The embodiment of the invention provides a PDCCH scheduling method, a base station and a storage medium. The base station determines that the target PDCCH does not have spectrum resource conflict with spectrum resources occupied by other communication systems for the target terminal in a spectrum sharing coexistence scene, and the target terminal is scheduled according to the target PDCCH. According to the invention, the target terminal can detect and analyze the corresponding DCI information more accurately, and then make a response according to the indication of the base station. According to the PDCCH scheduling scheme, because the CCE aggregation degree of the target terminal does not need to be improved, spectrum resources do not need to be additionally occupied for PDCCH scheduling, and because the spectrum resource units which are not suitable for PDCCH scheduling of the target terminal are eliminated as much as possible when the target PDCCH is determined, compared with a blind attempt scheme in the related technology, the interference of communication systems such as GSM and the like on the PDCCH in the LTE communication system can be effectively avoided.

Description

technical field [0001] The present invention relates to the communication field, in particular to a PDCCH scheduling method, a base station and a storage medium. Background technique [0002] Spectrum is a valuable resource in wireless communication. Since the birth of LTE (Long Term Evolution, long-term evolution), there have been LTE and GSM (Global System for Mobile communication, Global System for Mobile Communications) or LTE and UMTS (Universal Mobile Telecommunications System, universal Spectrum sharing and coexistence for mobile communication systems). [0003] However, in spectrum sharing and coexistence scenarios, GSM or UMTS is very likely to cause strong interference to the PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) in the LTE communication system, resulting in terminal interference to DCI (Downlink Control Information, Downlink Control Information) parsing failed. For this problem, the solution in the related art is: the LTE c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04B17/382
CPCH04W72/1263H04B17/382H04W72/23H04W72/12
Inventor 张元博
Owner ZTE CORP