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Signal processing method and base station

A signal processing and signal technology, applied in the field of communication, can solve problems such as insufficient power, and achieve the effect of reducing power damage

Active Publication Date: 2021-03-30
SHANGHAI HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If 4T4R is used, the transmission power of each T is 5W, occupying more than half of the transmission power of AAU single channel, and the power of this channel is not enough for high standard

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  • Signal processing method and base station
  • Signal processing method and base station
  • Signal processing method and base station

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Embodiment Construction

[0033] Embodiments of the present application are described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Those skilled in the art know that, with the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0034] In the case of higher-order MIMO, such as the case of 32T32R, due to the sharp increase of transmission channels, the passive RRU+antenna architecture is adopted, not only the hardware cost is high, but the antenna does not necessarily have the installation space, obviously the cost is huge of. Higher-order MIMO uses the AAU architecture, which integrates the RRU and antenna design, which can reduce equipment costs and reduce antenna space requirements. However, limited by the channel power of the AAU itself, in the prio...

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Abstract

The invention discloses a signal processing method which is applied to a base station comprising a BBU and an AAU, and the AAU comprises an RU and an antenna array corresponding to N transmitting channels and N receiving channels. The RU receives a first downlink signal sent by the BBU, the first downlink signal is one of a first signal, N paths of second signals and M paths of third signals, thefirst signal is a to-be-transmitted downlink signal used for downlink scheduling, and the N paths of second signals are obtained by beam forming of the to-be-transmitted downlink signal by the BBU; the M paths of third signals are obtained by performing resource mapping processing on a downlink signal to be transmitted by the BBU; and the RU determines N paths of second downlink signals with different amplitudes and phases sent on the N transmitting channels according to the first downlink signal. According to the technical scheme, the method can be adapted to a high-order MIMO AAU hardware module, signal transmission of the UMTS through more transmission channels is realized, a normal cell is formed, power damage is reduced, and enough power is reserved for a high system.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a signal processing method and a base station. Background technique [0002] In order to improve and avoid the problem of network congestion, current main methods for improving network capacity include site encryption, spread spectrum, multi-sector and high-order multiple-input multiple-output (MIMO) technology. Among them, the high-order MIMO technology of 4 Tx4 Rx (4T4R) has been widely deployed in the network, and the higher-order 8T8R MIMO and the combination of space division and MIMO also have hardware support. As a further evolution in this direction, 32T32R can double the system capacity. The main impetus of the 32T32R hardware comes from high-standard LTE and new radio (new radio, NR), but it also has demands for universal mobile telecommunications system (UMTS). [0003] The current UMTS multi-antenna transmission technology is realized by connecting an...

Claims

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Application Information

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IPC IPC(8): H04B7/0413H04B7/0426H04B7/06H04B7/08H04B17/12H04B17/21
CPCH04B7/0413H04B7/043H04B7/0617H04B7/086H04B17/12H04B17/21Y02D30/70
Inventor 黄忠
Owner SHANGHAI HUAWEI TECH CO LTD