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A power detection circuit and terminal

A technology of power detection circuit and circuit, which is applied in the field of communication, can solve problems such as higher and higher layout design requirements and failure to meet application requirements, and achieve the effect of ensuring accuracy

Active Publication Date: 2021-05-07
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, with the trend of smaller and smaller terminal sizes, the layout design requirements for signal detection and power detection are getting higher and higher, and the existing designs can no longer meet the application requirements.

Method used

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  • A power detection circuit and terminal
  • A power detection circuit and terminal
  • A power detection circuit and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Figure 4 It is a first circuit structure diagram of a power detection circuit provided by an embodiment of the present invention.

[0058] like Figure 4 As shown, taking the NR frequency band as an example, 1 transmission and 4 receptions are realized through 4 antennas. The power detection circuit includes: a radio frequency transceiver module and a detection module; the detection module includes a first radio frequency front-end module and a first switch module; a radio frequency transceiver module Through the connection between the first radio frequency front-end module and the first switch module; the first switch module is connected to the four antennas of the terminal (for example: ANT1, ANT2, ANT3 and ANT4).

[0059] Among them, the first radio frequency front-end module includes 1 transceiver sub-module (for example: NR TRx module) and 3 receiving sub-modules (for example: NR Rx module), here, the description on the naming of TRx module is as follows: TRx mod...

Embodiment 2

[0072] Similarly, the scheme of 1 transmission and 4 reception in LTE is as follows: Figure 5 shown, where, with Figure 4 The only difference is that the LTE frequency band is taken as an example, and the NR TRx module and NR Rx module in the radio frequency transceiver module in the first radio frequency front-end module are replaced with the corresponding LTE TRx module and LTE Rx module. For the specific connection method and the implementation method of the power detection circuit, please refer to Figure 4 The description in , will not be repeated here.

Embodiment 3

[0074] Image 6 It is a third circuit structure diagram of a power detection circuit provided by an embodiment of the present invention.

[0075] like Image 6 As shown, through the first switch module (for example: 6P4T switch module, that is, the P port of 1-6 and the port of 7-10T), the three NR Tx signals are respectively switched between the four NR antennas, that is, the SRS antenna Rotation technique.

[0076] The structure of the specific power detection circuit is as follows:

[0077] A radio frequency transceiver module and a detection module; the detection module includes a first radio frequency front-end module and a first switch module; the radio frequency transceiver module is connected to the first switch module through the first radio frequency front-end module; the first switch module and the four terminals of the terminal Antenna connection.

[0078] Wherein, the first radio frequency front-end module includes 3 transceiver sub-modules and 3 receiving sub...

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Abstract

The embodiment of the present invention discloses a power detection circuit and a terminal, including: the radio frequency transceiver module is connected to the first switch module through the first radio frequency front-end module, and the first switch module is connected to at least two antennas; the first switch module The group includes a first branch provided with a first directional coupler and a plurality of second branches; the first directional coupler is connected to the radio frequency transceiver module; the first radio frequency front-end module includes a transmitting submodule and a receiving submodule; One end of the first branch is used to be connected to one transmitting submodule; or, switchably connected to multiple transmitting submodules; the other end of the first branch is used to switchably connect to at least two antennas; the second branch One end of the branch is used to be connected to one receiving submodule, or to be switchably connected to multiple receiving submodules; the other end of the second branch is used to be switchably connected to at least two antennas. The layout area of ​​the power detection circuit can be reduced by using the embodiments of the present invention.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a power detection circuit and a terminal. Background technique [0002] In recent years, multiple-input multiple-output system (Multiple-Input Multiple-Output, MIMO) has become one of the important means of guaranteeing the performance of wireless communication systems, and is widely used in various wireless communication systems and communication standards, especially in the fifth generation mobile Communication technology (5th-Generation, 5G) and various types of communication terminals. [0003] At present, in the power detection scenario in the non-standalone (NSA) of the 5G network, in order to ensure the normal use of the user, the terminal needs to perform power detection on the transmission power. The main implementation method is to connect to each antenna A signal detection module is set on the path to measure the signal transmissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/10H04B1/401H04B7/0404
CPCH04B1/401H04B7/0404H04B17/102
Inventor 韦仁杰陈观文
Owner VIVO MOBILE COMM CO LTD