CN113453313A - Method and device for quickly residing Internet of things equipment in and out of power saving mode - Google Patents
Method and device for quickly residing Internet of things equipment in and out of power saving mode Download PDFInfo
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- CN113453313A CN113453313A CN202110597796.3A CN202110597796A CN113453313A CN 113453313 A CN113453313 A CN 113453313A CN 202110597796 A CN202110597796 A CN 202110597796A CN 113453313 A CN113453313 A CN 113453313A
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- 230000004913 activation Effects 0.000 claims abstract description 36
- 101150096310 SIB1 gene Proteins 0.000 claims abstract description 9
- 101150039363 SIB2 gene Proteins 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims description 15
- 230000009849 deactivation Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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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
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
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- 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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Abstract
The application discloses a method for quickly residing an internet of things terminal in and out of a power saving mode, which comprises the following steps. Step S1: and when the UE is released to be in an idle state by the network, starting an activation timer and a TAU period timer. Step S2: and when the activation timer is overtime and enters a power saving mode, storing the frequency point, the cell ID and the system message of the current resident cell into a nonvolatile memory. Step S3: when the TAU period timer is overtime and exits the power saving mode, the frequency point, the cell ID and the system message of the resident cell which are stored before entering the power saving mode are recovered, and the related configuration and the paging configuration which are required by the resident cell are directly carried out according to the system information block I SIB1 and the system information block II SIB2 in the system message. According to the method and the device, the network searching residence time is shortened when the UE exits the power saving mode, and the power consumption of the UE is reduced.
Description
Technical Field
The application relates to a quick residing method for an internet of things device to enter and exit a power saving mode.
Background
The internet of things terminal has the characteristic of ultra-low Power consumption, and a Power Saving Mode (PSM) is introduced in the 3GPP R12 standard. In the power saving mode, the UE (user equipment) no longer receives a data page from the network, similar to powering off but does not make a detach (detach) request, so the UE is still registered in the network, the state information of the non-access stratum (NAS) is retained, and the Access Stratum (AS) no longer resides in the cell. Therefore, when the UE exits the power saving mode, the UE only needs to camp on the cell again and perform TAU (Tracking Area Update), and attachment (attach) and PDN (Packet Data Network) connection are omitted, so that the rapid access of the power saving mode is realized. However, the UE frequently enters and exits the power saving mode, and further frequently searches for a network to camp on, which still needs to consume much time and power.
Disclosure of Invention
The technical problem to be solved by the application is to reduce the network searching residence time and power consumption when entering and exiting the power saving mode.
In order to solve the technical problem, the application provides a method for quickly residing an internet of things terminal in and out of a power saving mode, which comprises the following steps. Step S1: and when the UE is released to be in an idle state by the network, starting an activation timer and a TAU period timer. Step S2: and when the activation timer is overtime and enters a power saving mode, storing the frequency point, the cell ID and the system message of the current resident cell into a nonvolatile memory. Step S3: when the TAU period timer is overtime and exits the power saving mode, the frequency point, the cell ID and the system message of the resident cell which are stored before entering the power saving mode are recovered, and the related configuration and the paging configuration which are required by the resident cell are directly carried out according to the system information block I SIB1 and the system information block II SIB2 in the system message.
Further, the activation timer is used to decide when the UE enters a power saving mode; after the UE processes the data, the RRC connection is released, and the UE enters an idle state, and meanwhile, an activation timer is started; when the activation timer expires, the UE enters a power saving mode.
Further, the TAU period timer is used to decide when the UE exits the power saving mode; when the TAU period timer expires or the UE actively exits after having the data reporting service to process, the UE exits the power saving mode, enters an idle state, and then enters a connected state to process the uplink and downlink services.
Further, in step S2, when the activation timer times out and enters the power saving mode, the non-access stratum notifies the access stratum to enter the power saving mode and sends out the activation request, and the access stratum stores the frequency point, the cell ID, the system message, and the like of the currently camped cell in the memory; and after the non-access layer receives the deactivation response of the access layer, entering a lower current process, backing up the data stored in the memory block of the access layer into the nonvolatile memory, informing the platform to power down the UE, and releasing the local memory of each module.
Further, in step S3, when the TAU period timer expires and exits the power saving mode, the UE is powered on, and the non-access stratum recovers data related to the power saving mode in the data of the nonvolatile memory to the newly applied memory block; after the platform initializes each module, the access layer recovers the frequency point, the cell ID, the system information and other data of the resident cell, which are stored before entering the power saving mode, into the access layer from the newly applied memory block; when receiving an activation request issued by a non-access layer, the access layer omits a command of sending a network searching request to a physical layer and a subsequent system message reading process, and directly carries out related configuration messages and paging configuration messages required by a resident cell for the physical layer according to SIB1 and SIB2 information in locally stored system messages.
Further, in step S3, after the platform initializes each module, the access layer restores, from the newly applied memory block, data such as the frequency point, the cell ID, and the system message of the resident cell that is stored before entering the power saving mode, to the data structure ErrcUeContext of the access layer for storing the resident cell information.
The application also provides a quick residence device of the internet of things terminal in and out of the power saving mode, which comprises a timer activating unit, a power saving mode entering processing unit and a power saving mode exiting processing unit. The timer activation unit is used for starting an activation timer and a TAU period timer when the UE is released to be in an idle state by the network. The power saving mode entering processing unit is used for saving the frequency point, the cell ID and the system message of the current resident cell into the nonvolatile memory when the activation timer is overtime and enters the power saving mode. And the exit power saving mode processing unit is used for recovering the frequency point, the cell ID and the system message of the resident cell stored before entering the power saving mode when the TAU period timer is overtime and exits the power saving mode, and directly performing relevant configuration and paging configuration required by the resident cell according to SIB1 and SIB2 information in the locally stored system message.
The method and the device have the advantages that the network searching residence time is shortened when the UE exits the power saving mode, and the power consumption of the UE is reduced.
Drawings
Fig. 1 is a schematic flow chart of a fast residing method of an internet of things terminal in and out of a power saving mode according to the present application.
Fig. 2 is a schematic structural diagram of a fast residence device of an internet of things terminal in and out of a power saving mode according to the present application.
The reference numbers in the figures illustrate: a timer activating unit 1, a power saving mode entering processing unit 2 and a power saving mode exiting processing unit 3.
Detailed Description
Referring to fig. 1, the method for quickly residing an internet of things terminal in and out of a power saving mode provided by the present application includes the following steps.
Step S1: when the UE is released to IDLE (IDLE) state by the network, an activation Timer (Active Timer) T3324 and a TAU period Timer (periodic Tracking Area Update Timer) T3412 are started.
The activation timer T3324 is used to decide when the UE enters the power saving mode. After the UE processes the data, RRC (Radio Resource Control) connection is released, and enters an idle state, and at the same time, an activation timer is started. When the activation timer expires, the UE enters a power saving mode.
The TAU period timer T3412 is used to decide when the UE exits the power saving mode. When the TAU period timer expires or the UE actively exits after having the data reporting service to process, the UE exits the power saving mode, enters an idle state, and then enters a connected state to process the uplink and downlink services.
Step S2: and when the activation timer is overtime and enters a power saving mode, storing the frequency point, the cell ID and the system message of the current resident cell into a nonvolatile memory.
Specifically, when the activation timer T3324 times out and wants to enter the power saving mode, the non-access stratum notifies the access stratum to enter the power saving mode and sends out an activation (deactivation) request, and the access stratum stores the frequency point, the cell ID, the system message, and the like of the currently camped cell in the memory. And after receiving the deactivation response of the access layer, the non-access layer enters a lower current process, backups the data stored in the memory block of the access layer into a nonvolatile memory (NVM), informs the platform to power down the UE and releases the local memory of each module. The platform is a platform for managing memory and program threads, and each module comprises an application software AP and each submodule of protocol stack software, such as a non-access layer and an access layer; a digital signal processor DSP, a radio frequency RF unit, etc.
Step S3: when the TAU periodic timer is overtime and exits the power saving mode, the frequency point, the cell ID and the System message of the resident cell which are saved before entering the power saving mode are recovered, and the related configuration and the paging configuration required by the resident cell are directly carried out according to a System Information Block (SIB 1) and a System Information Block (SIB 2) in the System message.
Specifically, when the TAU period timer T3412 times out, the UE is powered on, and the non-access stratum restores data related to the power saving mode (the frequency point, the cell ID, and the system message of the currently camped cell before entering the power saving mode) in the data of the nonvolatile memory to the newly applied memory block. After the platform initializes each module, the access layer restores the data such as the frequency point, the cell ID, the system message and the like of the resident cell, which are saved before entering the power saving mode, to the access layer from the newly applied memory block, specifically to the data structure ErrcUeContext of the protocol stack software access layer submodule used for saving the resident cell information. When receiving an activation request (activate) issued by a non-access layer, the access layer omits a command of sending a network searching request to a physical layer and a subsequent system message reading process, and directly performs related configuration messages and paging configuration messages required by a resident cell for the physical layer according to SIB1 and SIB2 information in locally stored system messages.
In the above method, two timers are protocol-specified, and only time nodes entering and exiting the power saving mode are determined. But the protocol does not specify how the information of the original resident cell is processed and how the information of the original resident cell is processed by the re-resident cell. The application provides a processing mode for residing in a cell more efficiently.
Referring to fig. 2, the fast parking apparatus for the internet of things terminal to enter and exit the power saving mode provided by the present application includes a timer activation unit 1, a processing unit 2 for entering the power saving mode, and a processing unit 3 for exiting the power saving mode. The apparatus shown in fig. 2 corresponds to the method shown in fig. 1.
The timer activation unit 1 is used for starting an activation timer and a TAU period timer when the UE is released to an idle state by the network.
The power saving mode entering processing unit 2 is used for saving the frequency point, the cell ID and the system message of the current resident cell into the nonvolatile memory when the activation timer is overtime and enters the power saving mode.
The exit power saving mode processing unit 3 is configured to, when the TAU period timer expires and exits the power saving mode, restore the frequency point, the cell ID, and the system message of the resident cell that are stored before entering the power saving mode, and directly perform related configuration and paging configuration required by the resident cell according to the SIB1 and SIB2 information in the locally stored system message.
Compared with the prior art, the method and the device have the following beneficial technical effects.
Firstly, the time consumed by network searching and residing after the UE is powered on is reduced. After the conventional UE is powered on, the cell residence can be completed only by performing a series of operations such as frequency point frequency sweeping, cell finding, and system message reading. According to the method and the device, the cell residence information before entering the power saving mode is reserved, and after the power saving mode is quitted and the power is on, the key residence information is directly obtained, so that the cell can rapidly and synchronously reside with the original cell without actions such as frequency sweeping and network searching, and the residence time is saved.
And secondly, high power consumption caused by network searching residence is effectively reduced. Just because the high power consumption actions of frequency sweeping and network searching after exiting the power saving mode are omitted, the power consumption of the UE is effectively reduced.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A quick resident method of an internet of things terminal in and out of a power saving mode is characterized by comprising the following steps;
step S1: when User Equipment (UE) is released by a network to be in an idle state, starting an activation timer and a TAU period timer;
step S2: when the activation timer is overtime and enters a power saving mode, storing the frequency point, the cell ID and the system message of the current resident cell into a nonvolatile memory;
step S3: when the TAU period timer is overtime and exits the power saving mode, the frequency point, the cell ID and the system message of the resident cell which are stored before entering the power saving mode are recovered, and the related configuration and the paging configuration which are required by the resident cell are directly carried out according to the system information block I SIB1 and the system information block II SIB2 in the system message.
2. The method for rapidly camping on an internet of things terminal in and out of a power saving mode according to claim 1, wherein the activation timer is used for deciding when the UE enters the power saving mode; after the UE processes the data, the RRC connection is released, and the UE enters an idle state, and meanwhile, an activation timer is started; when the activation timer expires, the UE enters a power saving mode.
3. The method as claimed in claim 1, wherein the TAU period timer is used to determine when the UE exits the power saving mode; when the TAU period timer expires or the UE actively exits after having the data reporting service to process, the UE exits the power saving mode, enters an idle state, and then enters a connected state to process the uplink and downlink services.
4. The method for rapidly residing in and out of a power saving mode of an internet of things terminal according to claim 1, wherein in step S2, when the activation timer is overtime and enters the power saving mode, the non-access stratum notifies the access stratum to enter the power saving mode and sends out an activation request, and the access stratum stores the frequency point, the cell ID, the system message and the like of the currently residing cell in a memory; and after the non-access layer receives the deactivation response of the access layer, entering a lower current process, backing up the data stored in the memory block of the access layer into the nonvolatile memory, informing the platform to power down the UE, and releasing the local memory of each module.
5. The method for an internet of things terminal to rapidly reside in a power saving mode according to claim 1, wherein in step S3, when the TAU period timer expires and exits the power saving mode, the UE is powered on, and the non-access stratum recovers data related to the power saving mode in the data of the non-volatile memory to a newly applied memory block; after the platform initializes each module, the access layer recovers the frequency point, the cell ID, the system information and other data of the resident cell, which are stored before entering the power saving mode, into the access layer from the newly applied memory block; when receiving an activation request issued by a non-access layer, the access layer omits a command of sending a network searching request to a physical layer and a subsequent system message reading process, and directly carries out related configuration messages and paging configuration messages required by a resident cell for the physical layer according to SIB1 and SIB2 information in locally stored system messages.
6. The method for quickly residing in and out of a power saving mode of an internet of things terminal as claimed in claim 5, wherein in step S3, after the platform initializes each module, the access layer restores, from the newly applied memory block, data such as the frequency point, cell ID, and system message of the resident cell stored before entering the power saving mode to a data structure ErrcUeContext of the access layer for storing resident cell information.
7. A quick resident device for an Internet of things terminal to enter and exit a power saving mode is characterized by comprising a timer activating unit, a power saving mode entering processing unit and a power saving mode exiting processing unit;
the timer activation unit is used for starting an activation timer and a TAU period timer when the UE is released to be in an idle state by the network;
the power saving mode entering processing unit is used for storing a frequency point, a cell ID and a system message of a current resident cell into the nonvolatile memory when the activation timer is overtime and enters a power saving mode;
and the exit power saving mode processing unit is used for recovering the frequency point, the cell ID and the system message of the resident cell stored before entering the power saving mode when the TAU period timer is overtime and exits the power saving mode, and directly performing relevant configuration and paging configuration required by the resident cell according to SIB1 and SIB2 information in the locally stored system message.
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| CN202110597796.3A CN113453313A (en) | 2021-05-31 | 2021-05-31 | Method and device for quickly residing Internet of things equipment in and out of power saving mode |
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| CN115623570A (en) * | 2022-12-06 | 2023-01-17 | 芯翼信息科技(上海)有限公司 | Method and device for recovering cell residence |
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