CN114222357A - Terminal device, power saving method, non-transitory storage medium, and program product - Google Patents

Terminal device, power saving method, non-transitory storage medium, and program product Download PDF

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Publication number
CN114222357A
CN114222357A CN202111533323.3A CN202111533323A CN114222357A CN 114222357 A CN114222357 A CN 114222357A CN 202111533323 A CN202111533323 A CN 202111533323A CN 114222357 A CN114222357 A CN 114222357A
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China
Prior art keywords
terminal device
terminal
ssb
rsrp
downlinks
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CN202111533323.3A
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CN114222357B (en
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黄韬
陈晓冬
魏垚
李鹏翔
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present disclosure relates to a terminal device, a power saving method, a non-transitory storage medium, and a program product. A method of saving power for a terminal device, comprising: receiving a Radio Resource Control (RRC) message, the RRC message including Maximum Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI) including antenna port information indicating a number of downlinks; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum number of MIMO layers with the number of downlinks; further comparing the SSB-RSRP with a predetermined range under the condition that the downlink number is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameters if the SSB-RSRP falls within the predetermined range.

Description

Terminal device, power saving method, non-transitory storage medium, and program product
Technical Field
The present disclosure relates generally to wireless communication systems, and more particularly to power saving techniques for terminal devices.
Background
Because of the large bandwidth and multi-antenna operation characteristics of 5G communication, how to reduce the power consumption of 5G terminal devices becomes a problem that those skilled in the art are interested in. The 3GPP defines various methods for reducing the power consumption of the terminal device, such as limiting the bandwidth size of a bandwidth part (hereinafter referred to as BWP), and limiting the maximum number of multiple input multiple output (hereinafter referred to as MIMO) layers in BWP, so that the terminal device can turn off part of the bandwidth and transmit/receive antennas for the purpose of power saving.
At present, the purpose of energy saving is usually achieved by two techniques, one is direct setting by the base station, and the terminal device sets the network configuration parameters according to a radio resource control (hereinafter referred to as RRC) message sent by the base station, and then the network configuration parameters are always effective; another is to feed back user equipment assistance control information (hereinafter referred to as UAI) to the base station to adjust network configuration parameters (e.g., BWP size or maximum MIMO layer number) in case the terminal device detects a problem such as a need to modify discontinuous reception (hereinafter referred to as DRX) parameters (in this case, it is generally detected that power consumption is excessive for a certain period of time) or overheating.
Therefore, there is a need for an improved power-saving feedback technique for a terminal device.
Disclosure of Invention
The following presents a simplified summary of the disclosure in order to provide a basic understanding of some aspects of the disclosure. However, it should be understood that this summary is not an exhaustive overview of the disclosure. It is not intended to identify key or critical elements of the disclosure or to delineate the scope of the disclosure. Its sole purpose is to present some concepts of the disclosure in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of the present disclosure, there is provided a power saving method of a terminal device, including: receiving a Radio Resource Control (RRC) message, the RRC message including Maximum Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI) including antenna port information indicating a number of downlinks; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum number of MIMO layers with the number of downlinks; further comparing the SSB-RSRP with a predetermined range under the condition that the downlink number is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameters if the SSB-RSRP falls within the predetermined range.
According to another aspect of the present disclosure, there is provided a terminal apparatus including: a memory having instructions stored thereon, and a processor configured to execute the instructions stored on the memory to perform the steps of: receiving a Radio Resource Control (RRC) message, the RRC message including Maximum Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI) including antenna port information indicating a number of downlinks; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum number of MIMO layers with the number of downlinks; further comparing the SSB-RSRP with a predetermined range under the condition that the downlink number is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameters if the SSB-RSRP falls within the predetermined range.
According to yet another aspect of the present disclosure, there is provided one or more non-transitory storage media storing instructions that, when executed by one or more hardware processors, cause performance of the method according to the above-described aspect of the present disclosure.
According to yet another aspect of the present disclosure, there is provided a program product comprising instructions which, when executed by one or more hardware processors, cause the performance of the method according to the above-mentioned aspect of the present disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:
fig. 1 is a flowchart showing an example of a power-saving feedback process of a conventional terminal apparatus;
fig. 2 is a timing chart showing a series of operations of a power saving feedback process of a conventional terminal apparatus;
fig. 3 shows a flowchart of an energy saving process of a terminal device according to an embodiment of the present disclosure;
fig. 4 is a timing chart showing a series of operations of the power saving process of the terminal apparatus according to the embodiment of the present disclosure;
fig. 5 shows an exemplary configuration of a terminal apparatus in which an embodiment according to the present disclosure can be implemented.
Detailed Description
The following detailed description is made with reference to the accompanying drawings and is provided to assist in a comprehensive understanding of various exemplary embodiments of the disclosure. The following description includes various details to aid understanding, but these details are to be regarded as examples only and are not intended to limit the disclosure, which is defined by the appended claims and their equivalents. The words and phrases used in the following description are used only to provide a clear and consistent understanding of the disclosure. In addition, descriptions of well-known structures, functions, and configurations may be omitted for clarity and conciseness. Those of ordinary skill in the art will recognize that various changes and modifications of the examples described herein can be made without departing from the spirit and scope of the disclosure.
At present, the purpose of energy saving of a terminal device is mainly realized through two technologies, one is that the energy saving is directly set through a base station, the terminal device sets network configuration parameters according to RRC messages sent by the base station, and then the network configuration parameters take effect all the time; another is to transmit, for example, a UAI to the base station to adjust, for example, the BWP size or the maximum MIMO layer number in the case where the terminal device detects that a problem such as excessive power consumption or overheating occurs by the power saving feedback technique of the terminal device.
The technique directly set by the base station may cause a decrease in downlink efficiency of the terminal because of the constant parameters. The maximum MIMO layer number is issued by the base station through RRC message, and is semi-static configuration.
In some embodiments, if a terminal device with a terminal capability of 4 downlinks is set to operate in 2 downlinks in consideration of energy saving, the terminal device can only operate in 2 downlinks even if the terminal device is located at a position closer to a base station in a cell (hereinafter referred to as a near point), which results in that the downlink rate can only reach half of the peak value, which may reduce the performance of the terminal device when performing downlink high-capacity service, and affect the user experience.
In some embodiments, a terminal device whose terminal capability is 4 downlinks is set to operate in 4 downlinks without considering power saving, and even if the terminal device is at a location in a cell that is far from a base station (hereinafter, referred to as a middle-far point) and can operate only in 1 or 2 downlinks, the terminal device will turn on 4 reception antennas, resulting in a large amount of power consumption. Therefore, in the case where the terminal apparatus is in a moving state, the technique of directly setting by the base station has a certain limitation.
The energy-saving feedback technology of the terminal device sets network configuration parameters of the terminal device by the following steps: when a terminal device requests to access a base station for service, the base station requires the terminal device to feed back terminal capability, wherein the terminal capability comprises bandwidth supported by the terminal device, the maximum MIMO layer number and the like; the base station performs scheduling (i.e., sending RRC messages) according to the terminal capabilities reported by the terminal device; the terminal device sets network parameters to perform service according to the RRC message; when the terminal device performs a service, only in the case where it is detected that a problem such as excessive power consumption or overheating occurs for a certain period of time, the terminal device transmits, for example, a UAI to the base station, and the base station performs RRC configuration again according to the received UAI, so that the terminal device adjusts, for example, the BWP size or the maximum MIMO layer number.
Fig. 1 shows a flowchart of an example of a power saving feedback process of a conventional terminal apparatus. When the terminal device accesses the base station to perform a service, the network configuration parameters are further set through a conventional energy-saving feedback process of the terminal device. The power saving process of the conventional terminal apparatus can be performed by, for example, a terminal apparatus (hereinafter simply referred to as a terminal).
At S101, the terminal receives an RRC message transmitted from the base station. The RRC message is set and transmitted by the base station according to the terminal capabilities reported by the terminal (such as BWP supported by the terminal and the maximum MIMO layer number). Then, the process proceeds to S102.
At S102, the terminal sets network configuration parameters according to the RRC message sent by the base station and performs a service. The network configuration parameters set here correspond to terminal capabilities. The terminal cannot adjust, for example, BWP or the maximum MIMO layer number without being instructed to modify the network configuration parameters. Then, the process proceeds to S103.
At S103, after the terminal performs the service operation for a period of time, it is detected whether to modify the DRX parameter (at this time, it is generally detected that the power consumption is too large for a period of time) or to cause overheating, and the like. In the case where excessive power consumption or overheating is detected, the process proceeds to S104. Otherwise, the process ends.
At S104, the terminal sends, for example, a UAI to the base station. The base station may modify the RRC message according to the received UAI.
Then, the process returns to S101. The terminal will reset the network configuration parameters according to the modified RRC message to perform the service while achieving the purpose of energy saving.
Fig. 2 is a timing chart showing a series of operations of the power saving feedback process of the conventional terminal apparatus. Fig. 2 will be further described in conjunction with elements in fig. 1 to further explain operations between a terminal and a base station in a conventional power-saving feedback process of a terminal apparatus. Operation may proceed from S201 to S206.
At S201, the terminal receives an RRC message transmitted from the base station.
In some embodiments, when the terminal needs to perform a service, the terminal sends an access request to the base station. Upon receiving the access request, the base station asks the terminal to report terminal capabilities, which may include, but are not limited to, BWP and maximum MIMO layer number (e.g., 100M bandwidth and 2 uplinks and 4 downlinks). The terminal then reports the terminal capabilities in response to the base station's requirements. And the base station configures and sends RRC messages according to the terminal capability reported by the terminal.
At S202, the terminal sets network configuration parameters according to the received RRC message and performs a service. Then, the operation proceeds to S203.
At S203, after the service is performed for a certain period of time, in the case where it is detected that excessive power consumption or overheating occurs, the process proceeds to S204.
At S204, the terminal sends the UAI to the base station for feedback. Then, the operation proceeds to S205.
At S205, the base station performs RRC reconfiguration again according to the received UAI and transmits the generated modified RRC message to the terminal. Then, the operation proceeds to S206.
At S206, the terminal will reset the network configuration parameters according to the received modified RRC message and perform a service.
Note that in the case where the occurrence of excessive power consumption or overheating is not detected at S203, the subsequent operation will be omitted, and the terminal will continue the relevant service with the network configuration parameters set at S202.
However, as can be seen from fig. 1 and fig. 2, the energy saving process of the conventional terminal device has a certain time delay, and when the terminal has generated a large amount of energy consumption, the network configuration parameters of the terminal are reset, which cannot achieve the effect of saving energy as much as possible.
The technology of combining the technology of direct setting of the base station and the energy-saving feedback technology of the terminal device cannot achieve the ideal effect of saving energy as much as possible while ensuring the performance of the terminal device. In addition, it is not suitable for a scenario in which the terminal device is in a moving state.
In view of the limitations of the direct base station setup and the energy-saving feedback technology of the conventional terminal device, the present disclosure proposes a new energy-saving technology of the terminal device to be applied to a scenario in which the terminal device is in a mobile state, which can simultaneously consider the performance and energy saving of the terminal device.
The power saving method of a terminal device proposed by the present disclosure utilizes a new power saving processing method by comparing the maximum MIMO layer number in an RRC message with the downlink number in DCI, and comparing SSB-RSRP with a predetermined range, and then setting a network configuration parameter according to the result of the comparison. The details of the power saving method of the terminal apparatus proposed by the present disclosure will be further described in conjunction with fig. 3 and 4.
Fig. 3 shows a flowchart of a power saving process of a terminal device according to an embodiment of the present disclosure. In the case where the terminal device is in a mobile state and performs a service, the terminal device accesses the base station to perform the service, and will set network configuration parameters through an improved power saving process of the terminal device. The power saving process of the improved terminal apparatus can be performed by, for example, a terminal apparatus (hereinafter simply referred to as a terminal).
At S301, the terminal receives an RRC message transmitted from the base station. The RRC message is set and transmitted by the base station according to the terminal capabilities reported by the terminal (such as BWP supported by the terminal and the maximum MIMO layer number). Then, the process proceeds to S302.
At S302, the terminal receives DCI transmitted from the base station, the DCI including antenna port information indicating the number of downlinks. Then, the process proceeds to S303.
In some embodiments, when the terminal moves from a near point to a cell edge, the base station cannot schedule 4 downlinks when scheduling the terminal due to poor channel quality. The information of the downlink number is contained in an antenna port (antenna ports) field in the DCI message.
Note that it takes a long time for the base station to configure and transmit the RRC message, and the base station generally transmits the RRC message to the terminal when the terminal requests to access the base station for a service. However, compared to the RRC message, it takes a short time for the base station to configure and transmit DCI, and the base station continues to transmit DCI during a period in which the terminal continues to perform traffic.
At S303, the terminal measures the obtained SSB-RSRP by known methods, e.g., as defined by the 3GPP standard. Then, the process proceeds to S304.
At S304, the terminal compares, by for example but not limited to a processor (such as a power saving decision maker of the terminal), the number of downlinks in the DCI with the maximum number of MIMO layers in the RRC message.
In some embodiments, the power saving decision maker of the terminal compares the number of downlinks indicated by the antenna port field in the DCI with the maximum number of MIMO layers in the RRC message.
If the number of downlinks in the DCI is less than the maximum MIMO layer number in the RRC message, the process proceeds to S305. Otherwise, the process proceeds to S307.
At S305, the terminal determines, by, for example and without limitation, a processor (such as a power saving decision maker of the terminal), whether the SSB-RSRP obtained at S303 is within a predetermined range, which may be determined by one skilled in the art according to actual circumstances. The predetermined range may be equal to or greater than a threshold value 1 and equal to or less than a threshold value 2 (i.e., [ threshold value 1, threshold value 2]), where the threshold value may be freely set, for example, [ -110, -95] dBm. In the case where the obtained SSB-RSRP is within the predetermined range, the process proceeds to S306. Otherwise, the process proceeds to S307.
At S306, the terminal sets network configuration parameters (e.g., adjusts the number of receiving antennas) according to the received DCI and performs a service. Then, the process ends.
At S307, the terminal sets network configuration parameters according to the RRC message received at S301 and performs a service. Then, the process ends.
In some embodiments, in the case that the number of downlinks in the DCI is not less than the maximum MIMO layer number in the RRC message, the maximum MIMO layer number in the RRC message continues to be in effect (i.e., the terminal sets the network configuration parameters according to the received RRC message and performs the service). For example, if the maximum MIMO layer number in the RRC message is 4, and the number of downlinks indicated by the antenna port in the DCI received by the terminal at the cell near point is also 4, the terminal will set the network configuration parameters according to the maximum MIMO layer number in the RRC message without adjusting the number of receiving antennas (e.g., without turning off the antennas).
In some embodiments, in the event that the number of downlinks in the DCI is less than the maximum number of MIMO layers in the RRC message, the terminal will further set the network configuration parameters in accordance with a determination of whether the obtained SSB-RSRP is within a predetermined range (e.g., [ -110, -95] dBm). For example, if the maximum number of MIMO layers in the RRC message is 4 and the number of downlinks indicated by the DCI is 2, the terminal will behave differently according to the comparison between the measured SSB-RSRP and the predetermined range.
In some embodiments, if the SSB-RSRP is greater than-95 dBm, and the channel quality is good but all links of the terminal are not scheduled, which indicates that there may be severe interference in the communication, the maximum MIMO layer number configured in the RRC message is still valid, and the terminal does not turn off the additional receiving antenna, and diversity reception, for example, to compensate for fading channel loss, is used to improve reliability.
In some embodiments, if the SSB-RSRP is within [ -110, -95] dBm, the channel quality is still acceptable, and the terminal does not need to use diversity reception. The terminal will turn off the remaining 2 receive antennas as indicated by the antenna port field in the DCI.
In some embodiments, if the SSB-RSRP value is less than-110 dBm, and the channel quality is poor, the terminal may use diversity reception to reduce the error rate of transmission, and the maximum MIMO layer number configured in the RRC message still works.
Fig. 4 shows a sequence diagram of a series of operations of the power saving process of the terminal apparatus according to the embodiment of the present disclosure. Fig. 4 will be further described in conjunction with elements in fig. 3 to further explain operations between the terminal and the base station in the power saving process of the terminal apparatus of the present disclosure. The terminal may be in a mobile state. Operation may proceed from S401 to S405.
At S401, the terminal receives an RRC message transmitted from the base station. Then, the operation proceeds to S402.
In some embodiments, when the terminal needs to perform a service, the terminal sends an access request to the base station. Upon receiving the access request, the base station asks the terminal to report terminal capabilities, which may include, but are not limited to, BWP and maximum MIMO layer number (e.g., 100M bandwidth and 2 uplinks and 4 downlinks). The terminal then reports the terminal capabilities in response to the base station's requirements. And the base station configures and sends RRC messages according to the terminal capability reported by the terminal.
At S402, the terminal receives DCI transmitted from the base station, the DCI including antenna port information indicating the number of downlinks. Then, the operation proceeds to S403.
In some embodiments, when the terminal moves from a near point to a cell edge, the base station cannot schedule 4 downlinks when scheduling the terminal due to poor channel quality. The information of the number of downlinks is contained in an antenna port (antenna ports) field in the DCI message.
Note that it takes a long time for the base station to configure and transmit the RRC message, and the base station generally transmits the RRC message to the terminal when the terminal requests access to the base station for a service. However, compared to the RRC message, it takes a short time for the base station to configure and transmit DCI, and the base station continues to transmit DCI during a period in which the terminal performs a service.
At S403, the terminal measures the obtained SSB-RSRP by a known method, e.g., as defined by the 3GPP standard. Then, the operation proceeds to S404.
At S404, the terminal compares the number of downlinks in the DCI with the maximum MIMO layer number in the RRC message, and further determines whether the SSB-RSRP is within a predetermined range (e.g., [ -110, -95] dBm) in the case that the number of downlinks is less than the maximum MIMO layer number. Then the operation proceeds to S405.
At S405, the terminal determines to set network configuration parameters based on the RRC message or based on the DCI according to the result at S404 and performs a service.
In some embodiments, in the case that the downlink number of the DCI is not less than the maximum MIMO layer number in the RRC message, the terminal sets a network configuration parameter according to the RRC message and performs a service.
In some embodiments, in the case that the downlink number of the DCI is less than the maximum MIMO layer number in the RRC message and the SSB-RSRP is not within a predetermined range, the terminal sets a network configuration parameter according to the RRC message and performs a service.
In some embodiments, in the case where the downlink number of the DCI is less than the maximum MIMO layer number in the RRC message and the SSB-RSRP is within a predetermined range, the terminal sets network configuration parameters (e.g., turns off part of the receive antennas to save energy) according to the DCI and performs traffic.
As can be seen from fig. 3 and 4, in the energy saving process of the terminal device of the present disclosure, the terminal device may perform a relevant judgment according to a processor (such as an energy saving decision maker of the terminal) disposed thereon to determine how to set the network parameter, and therefore, the energy saving method of the terminal device proposed by the present disclosure can be applied to a scenario in which the terminal device is in a moving state, and simultaneously take into account performance and energy saving of the terminal device.
The energy-saving method of the terminal device is flexible, time delay is reduced, and the terminal device can judge and adjust the network configuration parameters in time. In addition, the application scene is wider, and the terminal device can be well represented in a scene in which the terminal device is in a moving state. In addition, the related algorithm has clear input conditions, is easy to realize, and does not need to increase extra terminal overhead
Fig. 5 shows an exemplary configuration of a terminal apparatus in which an embodiment according to the present disclosure can be implemented.
Computing device 500 is an example of a hardware device to which the above-described aspects of the disclosure can be applied. Computing device 500 may be any machine configured to perform processing and/or computing. Computing device 500 may be, but is not limited to, a workstation, a server, a desktop computer, a laptop computer, a tablet computer, a Personal Data Assistant (PDA), a smart phone, an in-vehicle computer, or a combination thereof.
As shown in fig. 5, computing device 500 may include one or more elements that may be connected to or in communication with bus 501 via one or more interfaces.
The bus 501 may include, but is not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, an enhanced ISA (eisa) bus, a Video Electronics Standards Association (VESA) local bus, a Peripheral Component Interconnect (PCI) bus, and the like.
Computing device 500 may include, for example, one or more processors 502, one or more input devices 503, and one or more output devices 504. The one or more processors 502 may be any kind of processor and may include, but are not limited to, one or more general purpose processors or special purpose processors (such as special purpose processing chips).
The processor 502 may for example be configured to carry out the following steps: receiving a Radio Resource Control (RRC) message, the RRC message including Maximum Input Multiple Output (MIMO) layer number information; receiving Downlink Control Information (DCI) including antenna port information indicating a number of downlinks; measuring a synchronization signal and a physical broadcast channel block reference signal received power (SSB-RSRP); comparing the maximum number of MIMO layers with the number of downlinks; further comparing the SSB-RSRP with a predetermined range under the condition that the downlink number is less than the maximum MIMO layer number; and causing the terminal device to reset the network configuration parameters if the SSB-RSRP falls within the predetermined range.
Input device 503 may be any type of input device capable of inputting information to a computing device and may include, but is not limited to, a mouse, a keyboard, a touch screen, a microphone, and/or a remote controller.
Output device 504 may be any type of device capable of presenting information and may include, but is not limited to, a display, speakers, a video/audio output terminal, a vibrator, and/or a printer.
Computing device 500 may also include or be connected to a non-transitory storage device 507, which non-transitory storage device 1214 may be any non-transitory and may implement a storage device for data storage, and may include, but is not limited to, a disk drive, an optical storage device, a solid state memory, a floppy disk, a flexible disk, a hard disk, a magnetic tape, or any other magnetic medium, a compact disk, or any other optical medium, a cache memory, and/or any other memory chip or module, and/or any other medium from which a computer may read data, instructions, and/or code.
Computing device 500 may also include Random Access Memory (RAM)505 and Read Only Memory (ROM) 506. The ROM 506 may store programs, utilities or processes to be executed in a nonvolatile manner. The RAM 505 may provide volatile data storage and store instructions related to the operation of the computing device 500.
The computing device 500 may also include a network/bus interface 508 coupled to a data link 509. The network/bus interface 508 may be any kind of device or system capable of enabling communication with external devices and/or networks and may include, but is not limited to, a modem, a network card, an infrared communication device, a wireless communication device, and/or a chipset (such as bluetooth)TMDevices, 802.11 devices, WiFi devices, WiMax devices, cellular communications facilities, etc.).
The present disclosure may be implemented as any combination of apparatus, systems, integrated circuits, and computer programs on non-transitory computer readable media. One or more processors may be implemented as an Integrated Circuit (IC), an Application Specific Integrated Circuit (ASIC), or a large scale integrated circuit (LSI), a system LSI, or a super LSI, or as an ultra LSI package that performs some or all of the functions described in this disclosure.
Aiming at the limitation of the conventional technology, a new energy-saving technology of the terminal device is provided, which is applied to the scene that the terminal device is in a moving state and simultaneously considers the performance and the energy saving of the terminal device.
The energy-saving technology of the terminal device is flexible, time delay is reduced, and the terminal device can judge and adjust network configuration parameters in time. In addition, the application scene is wider, and the terminal device can be well represented in a scene in which the terminal device is in a moving state. In addition, the related algorithm has clear input conditions and is easy to realize without adding extra terminal expense.
The present disclosure includes the use of software, applications, computer programs or algorithms. Software, applications, computer programs, or algorithms may be stored on a non-transitory computer readable medium to cause a computer, such as one or more processors, to perform the steps described above and depicted in the figures. For example, one or more memories store software or algorithms in executable instructions and one or more processors may associate a set of instructions to execute the software or algorithms to provide various functionality in accordance with embodiments described in this disclosure.
Software and computer programs (which may also be referred to as programs, software applications, components, or code) include machine instructions for a programmable processor, and may be implemented in a high-level procedural, object-oriented, functional, logical, or assembly or machine language. The term "computer-readable medium" refers to any computer program product, apparatus or device, such as magnetic disks, optical disks, solid state storage devices, memories, and Programmable Logic Devices (PLDs), used to provide machine instructions or data to a programmable data processor, including a computer-readable medium that receives machine instructions as a computer-readable signal.
By way of example, computer-readable media can comprise Dynamic Random Access Memory (DRAM), Random Access Memory (RAM), Read Only Memory (ROM), electrically erasable read only memory (EEPROM), compact disk read only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to carry or store desired computer-readable program code in the form of instructions or data structures and which can be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Disk or disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
The subject matter of the present disclosure is provided as examples of apparatus, systems, methods, and programs for performing the features described in the present disclosure. However, other features or variations are contemplated in addition to the features described above. It is contemplated that the implementation of the components and functions of the present disclosure may be accomplished with any emerging technology that may replace the technology of any of the implementations described above.
Additionally, the above description provides examples, and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various embodiments may omit, substitute, or add various procedures or components as appropriate. For example, features described with respect to certain embodiments may be combined in other embodiments.
In addition, in the description of the present disclosure, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or order.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous.

Claims (12)

1. A method of saving power for a terminal device, comprising:
receiving a Radio Resource Control (RRC) message, wherein the RRC message comprises information of the maximum MIMO layer number;
receiving downlink control information, DCI, the DCI including antenna port information indicating a number of downlinks;
measuring the receiving power SSB-RSRP of the synchronization signal and the reference signal of the physical broadcast channel block;
comparing the maximum number of MIMO layers to the number of downlinks;
further comparing the SSB-RSRP to a predetermined range if the number of downlink layers is less than the maximum number of MIMO layers; and
causing the terminal device to reset network configuration parameters if the SSB-RSRP falls within the predetermined range.
2. The energy saving method according to claim 1, wherein
The predetermined range is equal to or greater than-110 dBm and equal to or less than-95 dBm.
3. The energy saving method according to claim 1, wherein
The network configuration parameters include the number of MIMO layers.
4. Energy saving method according to claims 1-3, wherein
The terminal device does not need to reset the network configuration parameter when the number of downlinks is equal to or greater than the maximum number of MIMO layers.
5. Energy saving method according to claims 1-3, wherein
The terminal device need not reset the network configuration parameters if the number of downlinks is less than the maximum number of MIMO layers and the SSB-RSRP is not within the predetermined range.
6. A terminal apparatus, comprising:
a memory having instructions stored thereon; and
a processor configured to execute instructions stored on the memory to perform the steps of:
receiving a Radio Resource Control (RRC) message, wherein the RRC message comprises information of the maximum MIMO layer number;
receiving Downlink Control Information (DCI), wherein the DCI comprises downlink number information;
measuring the receiving power SSB-RSRP of the synchronization signal and the reference signal of the physical broadcast channel block;
comparing the maximum number of MIMO layers to the number of downlinks;
further comparing the SSB-RSRP to a predetermined range if the number of downlink layers is less than the maximum number of MIMO layers; and
causing the terminal device to reset network configuration parameters if the SSB-RSRP falls within the predetermined range.
7. A terminal device according to claim 6, wherein
The predetermined range is equal to or greater than-110 dBm and equal to or less than-95 dBm.
8. A terminal device according to claim 6, wherein
The network configuration parameters include the number of MIMO layers.
9. A terminal device according to claims 6-8, wherein
And when the number of downlinks is greater than or equal to the maximum number of MIMO layers, the terminal device does not need to reset the network configuration parameter.
10. A terminal device according to claims 6-8, wherein
The terminal device need not reset the network configuration parameters if the number of downlinks is less than the maximum number of MIMO layers and the SSB-RSRP is not within the predetermined range.
11. A non-transitory storage medium storing instructions that, when executed by one or more processors, cause performance of the method recited in any one of claims 1-5.
12. A program product comprising instructions which, when executed by one or more processors, cause performance of the method recited in any one of claims 1-5.
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