CN-113316238-B - Apparatus and method for controlling power consumption in wireless communication

Abstract

The present disclosure relates to a wireless communication device and a method for wireless communication. The wireless communication device includes a baseband processor and a controller. The baseband processor is configured to generate status information regarding a channel of the wireless communication by processing the baseband signal. The controller is configured to enable low power operation in a first channel state having a reduced channel quality compared to a second channel state based on the state information.

Inventors

• Zheng Duohai
• Du Zhouxuan
• JIANG XINYOU
• Jin Fankun

Assignees

• 三星电子株式会社
• 三星电子株式会社

Dates

Publication Date

20260421

Application Date

20210118

Priority Date

20200226

Claims (19)

1. 1. An apparatus for wireless communication, the apparatus comprising: a baseband processor configured to receive a digital signal as a baseband signal and to generate status information regarding a channel of the wireless communication by processing the baseband signal, and A controller configured to generate a control signal enabling low power operation in a first channel state that is worse than a second channel state based on the state information, Wherein the controller is configured to adjust the number of valid bits of the digital signal based on the status information, the control signal enabling the low power operation comprises a control signal reducing the number of valid bits of the digital signal, The baseband processor is configured to omit processing of at least one least significant bit of the digital signal in response to a control signal that reduces the number of significant bits of the digital signal.
2. 2. The apparatus of claim 1, further comprising an analog-to-digital converter configured to convert an analog signal generated from a signal received over the channel to a digital signal.
3. 3. The apparatus of claim 2, wherein the analog-to-digital converter is configured to omit generating at least one least significant bit of the digital signal in response to a control signal that reduces the number of significant bits of the digital signal.
4. 4. The apparatus of claim 2, further comprising an interface circuit configured to send a digital signal from the analog-to-digital converter to the baseband processor, Wherein the interface circuit is configured to omit transmission of at least one least significant bit of the digital signal in response to a control signal that reduces the number of significant bits of the digital signal.
5. 5. The device of claim 4, wherein the interface circuit comprises: at least one signal line; A transmitting circuit configured to generate a first signal by removing the at least one least significant bit of the digital signal and transmit the first signal through the at least one signal line in response to a control signal that reduces the number of significant bits of the digital signal, and A receiving circuit configured to generate a second signal by concatenating at least one bit to the received signal and to provide the second signal to the baseband processor through the at least one signal line in response to a control signal that reduces the effective number of bits of the digital signal.
6. 6. The apparatus of claim 2, wherein the baseband processor further comprises clock gating circuitry configured to block a clock signal provided to circuitry configured to process at least one least significant bit of the baseband signal in response to the control signal reducing the number of significant bits of the digital signal.
7. 7. The apparatus of claim 2, wherein the baseband processor further comprises a fill circuit configured to set at least one least significant bit of the baseband signal to a particular value in response to a control signal that reduces the number of significant bits of the digital signal.
8. 8. The device of claim 2, wherein the controller is configured to obtain a first number of significant bits corresponding to the first channel state and to generate a control signal enabling the low power operation such that the number of significant bits of the digital signal matches a sum of the first number of significant bits and at least one additional number of bits.
9. 9. The device of claim 2, wherein the controller is configured to generate a control signal enabling generation of the status information such that a significant number of bits of the digital signal periodically reaches a maximum, and The baseband processor is configured to generate the state information in response to a control signal enabling generation of the state information.
10. 10. The device of claim 1, wherein the baseband processor is configured to process baseband signals based on a first algorithm instead of a second algorithm in response to a control signal enabling the low power operation, the first algorithm corresponding to a lower communication performance and power consumption than the second algorithm.
11. 11. The apparatus of claim 1, wherein the status information comprises at least one of a signal-to-noise ratio, a signal-to-interference-and-noise ratio, a reference signal received power, a channel quality indicator index, and a modulation coding scheme index.
12. 12. The device of claim 1, wherein the baseband processor is further configured to generate connection information regarding the connection of the wireless communication by processing the baseband signal, and The controller is configured to enable the low power operation at a first processing complexity of the baseband signal that is less than a second processing complexity of the baseband signal based on the connection information.
13. 13. The device of claim 12, wherein the connection information comprises information regarding at least one of a connection state, an idle state, a discontinuous reception state, and an initial access state.
14. 14. A method for wireless communication performed by a wireless communication device, the wireless communication device comprising a baseband processor and a controller, the method comprising: The baseband processor receives a digital signal as a baseband signal and generates status information regarding a channel of the wireless communication by processing the baseband signal; The controller generates a control signal enabling low power operation in a first channel state that is worse than a second channel state based on the state information, the control signal enabling the low power operation including a control signal that reduces a number of significant bits of the digital signal, and The baseband processor omits processing of at least one least significant bit of the digital signal in response to a control signal that reduces the number of significant bits of the digital signal.
15. 15. The method of claim 14, wherein the wireless communication device further comprises an analog-to-digital converter, the method further comprising converting an analog signal generated from a signal received over the channel to a digital signal.
16. 16. The method of claim 14, further comprising: the baseband processor generating connection information regarding the connection of the wireless communication by processing the baseband signal, and The controller enables the low power operation at a first processing complexity of the baseband signal that is less than a second processing complexity of the baseband signal based on the connection information.
17. 17. An apparatus for wireless communication, comprising: an analog-to-digital converter configured to convert an analog signal generated from a signal received through a channel of the wireless communication into a digital signal; A baseband processor configured to generate status information about the channel by processing the digital signal, and A controller configured to generate a control signal enabling low power operation in a first channel state that is worse than a second channel state based on the state information, Wherein the controller is configured to adjust the number of significant bits of the digital signal based on the state information, the control signal enabling the low power operation comprises a control signal reducing the number of significant bits of the digital signal, the baseband processor is configured to omit processing of at least one least significant bit of the digital signal in response to the control signal reducing the number of significant bits of the digital signal.
18. 18. The device of claim 17, wherein the baseband processor further generates connection information regarding the connection of the wireless communication by processing the digital signal, and The controller also adjusts the effective number of bits based on the connection information.
19. 19. The device of claim 18, wherein the controller is configured to generate a control signal based on the connection information at a first processing complexity of the digital signal that is less than a second processing complexity of the digital signal such that the number of valid bits is reduced.

Description

Apparatus and method for controlling power consumption in wireless communication Cross Reference to Related Applications The present application claims the benefit of korean patent application No.10-2020-0023840, filed 26 months 2 in 2020, to the korean intellectual property agency, the disclosure of which is incorporated herein by reference in its entirety. Technical Field The present inventive concept relates to wireless communication, and more particularly, to an apparatus and method of controlling power consumption in wireless communication. Background Wireless communication systems provide the ability to transmit information between a base station and a device without using a wired connection. In some cases, wireless communication systems use high frequency bands and/or high complexity protocols for high data throughput. An apparatus for wireless communication includes a high-performance device supporting a high-frequency band and a high-complexity protocol. As a result, the amount of power consumed by the high performance device increases. In some cases, when the signal quality of the device is reduced (e.g., accessing the system using a more basic communication standard), a low complexity communication method is used. However, the power consumption of the device may not be reduced correspondingly to the reduction of the signal quality, resulting in high power consumption compared to the performance level. Accordingly, there is a need in the art for systems and methods that enable more efficient power usage in high performance devices. Disclosure of Invention The present inventive concept provides an apparatus and method for reducing power consumption without sacrificing throughput in wireless communication and for controlling power consumption in wireless communication. According to an aspect of the inventive concept, there is provided an apparatus for wireless communication including a baseband processor configured to generate state information on a channel of wireless communication by processing a baseband signal, and a controller configured to enable low power operation in a first channel state that is worse than a second channel state based on the state information. According to another aspect of the inventive concept, there is provided a method for wireless communication performed by a wireless communication device, the method including generating state information about a channel of the wireless communication by processing a baseband signal, and enabling a low power operation in a first channel state that is worse than a second channel state based on the state information. According to another aspect of the inventive concept, there is provided an apparatus for wireless communication including an analog-to-digital converter configured to convert an analog signal generated from a signal received through a wireless communication channel into a digital signal, a baseband processor configured to generate state information about the channel by processing the digital signal, and a controller configured to adjust a significant number of bits of the digital signal based on the state information. According to another aspect of the inventive concept, a communication method includes communicating in a high performance mode, generating channel state information for a channel, determining that the channel state of the channel includes a low quality channel state based on the channel state information, and communicating in a low power mode on the channel based on the determination. Drawings Embodiments of the inventive concept will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which: fig. 1 is a diagram of a wireless communication system according to an example embodiment of the inventive concepts; fig. 2 is a flowchart illustrating an example of a method of controlling power consumption in wireless communication according to an example embodiment of the inventive concept; fig. 3A and 3B are block diagrams respectively illustrating examples of user equipment for wireless communication according to example embodiments of the inventive concepts; Fig. 4 is a flowchart illustrating an example of a wireless communication method according to an example embodiment of the inventive concept; Fig. 5A and 5B are diagrams illustrating examples of effective bit number data according to example embodiments of the inventive concept; Fig. 6 is a flowchart illustrating an example of a wireless communication method according to an example embodiment of the inventive concept; Fig. 7A and 7B are diagrams illustrating an example of an operation of reducing the number of effective bits according to an example embodiment of the inventive concept; fig. 8 is a flowchart illustrating an example of a wireless communication method according to an example embodiment of the inventive concept; Fig. 9A and 9B are block diagrams illustrating an operation of reducing