Wireless communication method, wireless communication system and substation environment monitoring system using wireless communication system
A wireless communication and environmental monitoring technology, applied in the field of wireless communication methods, systems, and substation environmental monitoring systems, can solve problems such as data not being received correctly, uplink control information not being able to be sent, and unable to be sent.
Active Publication Date: 2021-11-12
诺比侃人工智能科技(成都)股份有限公司
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Problems solved by technology
However, this method was quickly rejected by the industry, because PUCCH resources are limited, and spending precious 4 bits dedicated to sending ACK or NACK to the base station will result in the inability to send more important uplink control information, such as PHR, SR and CQI, etc. unable to send
To solve this problem, some existing technologies propose to feed back ACK or NACK in a bundling manner. This type of technology refers to feeding back a bound ACK to the base station when the data on all carriers is received correctly. The base station feeds back a NACK. Although this technology ensures that the base station can know the status of HARQ in time, the base station cannot know which carrier data is not received correctly because the bound NACK is only 1 bit long.
Therefore, under this technology, the base station will blindly retransmit the data on all downlink carriers to the mobile terminal, resulting in waste of resources
Method used
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[0048] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0049] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0050] figure 1 is a schematic structural diagram of the system according to the first embodiment of the present invention.
[0051] figure 2 is a schematic structural diagram of the system according to the second embodiment of the present invention.
[0052] The first embodiment of the present application is described below. The first embodiment of the present application operates in the form of multi-beams. For a sche...
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The invention discloses a wireless communication method, comprising the following steps: a mobile terminal monitors a plurality of pieces of downlink control information sent by a base station on a plurality of downlink carriers; the mobile terminal responds to the situation that the substation environment monitoring command on the first downlink carrier wave is not correctly decoded, the substation environment monitoring command on the second downlink carrier wave is correctly decoded, and the substation environment monitoring command on the third downlink carrier wave is correctly decoded; anda substation environment monitoring command on the fourth downlink carrier is correctly decoded, a NACK message is sent to the base station in a first resource of a PUCCH channel of the first uplink carrier, and an ACK message is sent to the base station in a PUSCH channel of the first uplink carrier. The method provided by the invention can effectively use the resources of the physical uplink control channel (PUCCH).
Description
technical field [0001] The invention relates to the technical field of substation monitoring, in particular to a wireless communication method, system and a substation environment monitoring system using the system. Background technique [0002] A substation is a place in a power system that transforms voltage and current, receives electric energy and distributes electric energy. At present, the monitoring of substations requires the application of wireless communication technology. [0003] Carrier aggregation is a new technology proposed in the standard of the LTE-advanced version. At present, in actual deployment, multiple carriers are generally deployed in the downlink direction (in LTE, two downlink carriers may be configured, and downlink four carriers may be configured), while in the uplink direction, generally only one uplink is configured. carrier. In the carrier aggregation technology, there is a technical problem of how to effectively feedback whether the data ...
Claims
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IPC IPC(8): H04L5/00H04L1/16H04W72/04
CPCH04L5/0055H04L5/0053H04L1/1607H04W72/0453H04W72/046H04W72/20
Inventor 王威林仁辉苏茂才唐泰可廖峪
Owner 诺比侃人工智能科技(成都)股份有限公司