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Reducing automatic gain control process in time division duplex communication mode

An automatic gain, time division duplex technology, applied in wireless communication, power management, electrical components, etc., can solve the problem that the gain control cannot respond quickly enough

Active Publication Date: 2017-06-13
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This means that for TDD systems, the existing gain control cannot react fast enough to control the gain during any one of the allocated subframes or slots where UL communication takes place

Method used

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  • Reducing automatic gain control process in time division duplex communication mode
  • Reducing automatic gain control process in time division duplex communication mode
  • Reducing automatic gain control process in time division duplex communication mode

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Embodiment Construction

[0031] In the following description, for the purpose of explanation and not limitation, specific details are stated, such as a specific architecture, interface, technology, etc., in order to provide a thorough understanding of the present invention. However, those skilled in the art will understand that the present invention may be practiced in other embodiments that depart from these specific details. That is to say, those skilled in the art will be able to design various arrangements, although these arrangements are not explicitly described or shown herein, but will contain the principle of the present invention and be included in the spirit and scope thereof. In some cases, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary details. All statements and specific examples describing the principles, aspects and embodiments of the present invention herein are intended to cov...

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Abstract

In TDD mobile networks, an incoming signal is received during a time period where no uplink communication takes place. The incoming signal is measured and analyzed to determine a noise level. Based on the noise level and on an uplink signal level from expected in a future uplink time slot, a gain for the automatic gain controller (510) is set for use in future uplink communications. The gain is set to optimize the operation of an analog-to-digital converter (520).

Description

Technical field [0001] The technical field of the present disclosure mainly relates to shortening the delay in setting the gain for the automatic gain control process in a mobile broadband network. More specifically, the present disclosure relates to a method and apparatus for shortening the reaction time for setting an appropriate gain for automatic gain control in a mobile broadband network operating in a time division duplex mode. Background technique [0002] WCDMA (Wideband Code Division Multiple Access) provides communication capabilities in both FDD (Frequency Division Duplex) mode and TDD (Time Division Duplex) mode. In the TDD mode, the system capacity reaches the maximum when the base stations (Node B) in the deployment area of ​​the UTRA (UMTS Terrestrial Radio Access) TDD mode are operating at the same time. But this may not be the case, and there are other possible deployment scenarios in areas used for mobile communications. Multi-operator, single-operator, asynch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/52
CPCH04W52/52
Inventor A.尼贾琴
Owner TELEFON AB LM ERICSSON (PUBL)