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Interface circuit and communication device

A technology of interface circuit and communication device, which is applied in the field of communication, can solve the problems of unable to meet the power consumption requirements of mobile phone communication chips, high power consumption, etc., and achieve the effect of high bandwidth, low power consumption and improved bandwidth

Active Publication Date: 2021-11-30
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

This will generate a large power consumption, which cannot meet the power consumption requirements of mobile phone communication chips.

Method used

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  • Interface circuit and communication device
  • Interface circuit and communication device

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Embodiment Construction

[0027] As mentioned in the background, the existing mobile phone communication chip usually separates the application processor and the modem into two independent chips, which are coupled through a serial bus and exchange information through a high-speed SERDES circuit.

[0028] Due to the high bandwidth requirements of 5G applications, SERDES circuits usually need to maintain multiple working channels at the same time to meet the bandwidth requirements. However, the more channels in operation, the greater the power consumption of the interface circuit. If a large number of channels are always working at the same time, a large amount of power consumption is bound to be generated.

[0029] In the prior art, a dynamic voltage and frequency scaling (Dynamic Voltage and Frequency Scaling, DVFS for short) solution is adopted to solve the demands of high bandwidth and low power consumption. Specifically, it is beneficial to the characteristic that the higher the operating frequency...

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Abstract

An interface circuit and a communication device, the interface circuit includes: a channel module, used to provide multiple channels, wherein the working state of at least one channel can be switched between an idle state and an active state; a dynamic adjustment module, in response to receiving A channel number adjustment instruction, the dynamic adjustment module adjusts the working state of the at least one channel, so as to adjust the number of active channels among the plurality of channels to the target channel number indicated by the channel number adjustment instruction. The scheme of the present invention is based on hardware to automatically increase or decrease the number of working channels of the interface circuit according to the bandwidth requirement, the state change speed of the whole process is fast, the impact on the data transmission of the chip is small, and the high bandwidth and low power consumption of the mobile phone communication chip can be better satisfied. consume demand.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an interface circuit and a communication device. Background technique [0002] In the Fifth-Generation mobile communications (5G for short) communication mobile phone, the application processor (Application Processor, AP for short) and the modem (modem) are usually divided into different chips, and the two are coupled through an interface circuit. connection for data transmission and information exchange. For example, the interface circuit may be a high-speed serializer / deserializer (SERializer DESerializer, SERDES for short). [0003] Due to the high bandwidth requirements of 5G applications, SERDES circuits generally have a high operating frequency, and often multiple lanes (Lane) work at the same time. This will generate relatively large power consumption, which cannot meet the power consumption requirements of the mobile phone communication chip. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B1/401
CPCH04B1/40H04B1/401
Inventor 谢克文王贵波金玮闫飞利
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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