Uplink frequency band conversion method and device in SUL mode

A frequency band conversion and frequency band technology, applied in the field of uplink frequency band conversion methods and devices in SUL mode, can solve the problem of no clear SUL scenario uplink frequency band selection strategy, etc., and achieve the effect of improving uplink perception

Pending Publication Date: 2020-04-28
CHINA MOBILE GROUP DESIGN INST +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the 5G network, the uplink frequency band selection strategy in the SUL scenario has not been clarified

Method used

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  • Uplink frequency band conversion method and device in SUL mode
  • Uplink frequency band conversion method and device in SUL mode
  • Uplink frequency band conversion method and device in SUL mode

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] In 2 / 3 / 4G networks, due to the balance or approximate balance of the uplink and downlink coverage, the cell coverage is mainly evaluated based on the level of the downlink signal. If the downlink reference signal strength is used to indirectly evaluate the uplink coverage level in the 5G network, it may be effective for communication system...

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Abstract

The embodiment of the invention provides an uplink frequency band conversion method and device in an SUL mode. The method comprises the following steps: acquiring a terminal transmitting power marginand downlink reference signal strength; selecting a high frequency band or an SUL frequency band as an uplink use frequency band according to the terminal transmitting power margin and the downlink reference signal intensity; and notifying the terminal to convert the uplink use frequency band between the high frequency band and the SUL frequency band according to a selection result. According to the embodiment of the present invention, the uplink coverage level is evaluated by using the terminal transmission power margin and the downlink reference signal intensity, so that a user in a high-frequency band edge region can perform conversion between a high-frequency band and a low-frequency band in time, and the uplink perception of the user is effectively improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a method and device for converting uplink frequency bands in SUL mode. Background technique [0002] With the continuous development of mobile networks and the continuous increase of business requirements, 5G network standardization and experimental work continue to advance. At present, the 5G network frequency band is mainly defined in the high frequency band. In order to cope with the impact of high transmission loss caused by the high frequency band, measures such as large-scale antenna technology and increased transmission power are adopted on the base station side. Correspondingly, the terminal side adopts measures to enhance coverage, but due to the influence of the battery and volume, the enhanced coverage method adopted by the terminal side has certain limitations in the uplink. Therefore, the 5G network introduces the low-frequency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W36/00H04B17/318H04B17/382
CPCH04W24/08H04W36/0016H04W36/0033H04W36/0088H04B17/318H04B17/382
Inventor 王建张羽杨健赵昌盛王康冯延钊刘方森
Owner CHINA MOBILE GROUP DESIGN INST
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