CN116828586B - Synchronization method and device for terminal in standby state - Google Patents
Synchronization method and device for terminal in standby state Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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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
Abstract
The disclosure relates to a synchronization method and device for a terminal in a standby state. Wherein the method comprises the following steps: and the long-term evolution terminal performs data receiving and processing strategy grading on a preset extended standby state discontinuous receiving period based on the clock time bias performance parameter and the time bias of the paging period when the preset sleep wakeup occurs, and generates a resynchronization grading table. And the long-term evolution terminal generates a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table. After the long-term evolution terminal wakes up from deep sleep, the data receiving time of the resynchronization process is preset based on the resynchronization hierarchical pre-arrangement model, so that the resynchronization of the long-term evolution terminal in a standby state is completed. The method and the device provide three-level resynchronization pre-arranging models, so that the terminal can ensure that the data quantity required to be received and processed in the resynchronization process after deep sleep awakening is minimum under the EDRX_IDLE configuration, and the purpose of saving power consumption is achieved.
Description
Technical Field
The disclosure relates to the field of synchronization methods of terminals, and in particular relates to a synchronization method and device of a terminal in a standby state.
Background
The terminal is generally in standby state (IDLE) and is in deep sleep for the rest of the time as long as it listens periodically to pages. The terminal wakes up after deep sleep, and larger time offset and frequency offset can be caused due to error accumulation of fast and slow clock switching, and if the terminal moves, the frequency offset problem of Doppler effect also exists. In addition, since Automatic Gain Control (AGC) of a signal is not tracked for a long time, there is also an AGC problem after a terminal moves; before the demodulation data is received, if the parameters such as time offset/frequency offset/AGC and the like are not estimated correctly and adjusted or compensated, the receiving and demodulation of the downlink demodulation data are directly affected. Generally, when the sleep time is not long and the maximum time offset does not exceed the CP, the terminal finds a downlink subframe containing more than 1 CRS to estimate parameters such as time offset, frequency offset, AGC and the like before receiving downlink demodulation data, and then starts receiving and demodulating the downlink demodulation data in a Paging subframe. However, when the deep sleep time is long (the slow clock error is estimated according to 5ppm generally), the time offset is too large when the time offset exceeds 1 CP, and the time offset and the frequency offset are too large under the scene, and the initial network searching of the terminal is almost similar, so that the conventional extension method of the terminal under the configuration of edrx_idle (Extended IDLE-mode DRX) is to perform cell synchronization in a mode of cell initial network searching, and insert a cell initial network searching process before the initial frame received by Paging.
In the existing method, the problem of resynchronization after deep sleep awakening under EDRX_IDLE configuration is solved by using a cell initial network searching mode when a terminal is started. This is not an ideal way from the power consumption saving point of view, because the cycle span of the edrx_idle configuration is from 5.12 seconds to the maximum of 43.7 minutes, the time span is too large, the actual time offset and the frequency offset are very different, the time offset is only a few CPs when small, and is 10 milliseconds when large, and it is not fine to cover all the time offset requirements with a uniform received data length.
Accordingly, there is a need for one or more approaches to address the above-described problems.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
It is an object of the present disclosure to provide a synchronization method, apparatus, electronic device, and computer-readable storage medium of a terminal in a standby state, which overcome, at least in part, one or more of the problems due to the limitations and disadvantages of the related art.
According to one aspect of the present disclosure, there is provided a synchronization method of a terminal in a standby state, including:
and the long-term evolution terminal performs data receiving and processing strategy grading on a preset extended standby state discontinuous receiving period based on the clock time bias performance parameter and the time bias of the paging period when the preset sleep wakeup occurs, and generates a resynchronization grading table.
And the long-term evolution terminal generates a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table.
And after the long-term evolution terminal wakes up from deep sleep, presetting the data receiving time of the resynchronization process based on the resynchronization hierarchical pre-arrangement model, and completing the resynchronization of the long-term evolution terminal in a standby state.
In an exemplary embodiment of the present disclosure, the synchronization method of a terminal in a standby state further includes:
acquiring a slow clock error parameter of a long-term evolution terminal during sleep based on a slow clock preset basic parameter;
calculating discontinuous reception configuration of a preset extended standby state based on the slow clock error parameter to generate a preset maximum theoretical time offset;
detecting the processing time length of the accelerator to the data based on the resynchronization signal, and generating a first grading threshold;
a second classification threshold is generated based on the link switching period.
In an exemplary embodiment of the present disclosure, the synchronization method of a terminal in a standby state further includes:
when the preset maximum theoretical time bias is smaller than a first grading threshold, dividing a discontinuous receiving cycle of a paging cycle into a subframe level, and generating a subframe level resynchronization strategy;
when the preset maximum theoretical time is larger than the first classification threshold and smaller than the second classification threshold, dividing discontinuous receiving circulation of the paging cycle into field level, and generating a field level resynchronization strategy;
when the preset maximum theoretical time is larger than a second classification threshold, dividing a discontinuous receiving cycle of a paging cycle into an ultra-long stage, and generating an ultra-long stage resynchronization strategy;
and generating a resynchronization hierarchical table based on the subframe-level resynchronization strategy, the field-level resynchronization strategy and the ultra-long-level resynchronization strategy.
In an exemplary embodiment of the present disclosure, the synchronization method of a terminal in a standby state further includes:
after the long-term evolution terminal receives the network-extended standby state discontinuous reception configuration, classifying the network-extended standby state discontinuous reception configuration based on the resynchronization classification table to generate subframe-level scheduling, field-level scheduling and ultra-long-level scheduling;
generating a re-synchronization subframe level pre-arrangement model based on the subframe level scheduling;
generating a resynchronization field level pre-arrangement model based on field level scheduling;
based on the ultra-long level scheduling, a re-synchronization ultra-long level pre-scheduling model is generated.
In an exemplary embodiment of the present disclosure, the synchronization method of a terminal in a standby state further includes:
based on the subframe level scheduling and the field level scheduling, generating a time frame level deviation value and a frame level large frequency deviation value of a boundary of a service cell by receiving and detecting a main synchronization signal/auxiliary synchronization signal of the service cell, and generating a frame level time deviation/frequency deviation parameter estimation value by carrying out preset adjustment on the frame level deviation value and the frame level large frequency deviation value;
generating a frame-level fine time-offset/frequency-offset parameter estimation value by carrying out data receiving and preset processing on the frame-level time-offset/frequency-offset parameter estimation value;
based on the frame-level fine time/frequency offset parameter estimation value, generating a resynchronization subframe-level pre-ranking model and a resynchronization field-level pre-ranking model through automatic gain control training of a service cell frequency point.
In an exemplary embodiment of the present disclosure, the synchronization method of a terminal in a standby state further includes:
receiving and demodulating the frame number information of the service cell through a main information demodulation module, generating a frame number deviation value of the service cell, and generating a time super-long grade deviation value and a super-long grade large frequency deviation value of the boundary of the service cell through receiving and detecting the main synchronization/auxiliary synchronization signals of the service cell based on the super-long grade scheduling and the frame number deviation value of the service cell;
generating a frame number adjustment deviation value by carrying out preset adjustment on a frame number deviation value of a serving cell, and generating an ultra-long time bias/frequency bias parameter estimation value by carrying out preset adjustment on the ultra-long level deviation value and the ultra-long level large frequency bias value based on the frame number adjustment deviation value;
generating an ultra-long fine time-offset/frequency-offset parameter estimation value by carrying out data receiving and preset processing on the ultra-long time-offset/frequency-offset parameter estimation value;
and generating a re-synchronization ultra-long stage pre-ranking model through automatic gain control training of the frequency points of the service cell based on the ultra-long stage fine time/frequency offset parameter estimation value.
In an exemplary embodiment of the present disclosure, the synchronization method of a terminal in a standby state further includes:
when the sleep module controls the long-term evolution terminal to wake up from sleep, the data receiving time of the resynchronization process is preset through the data receiving configuration module based on the resynchronization hierarchical pre-arrangement model, and preset data receiving configuration parameters are generated;
based on the preset data receiving configuration parameters, the resynchronization of the long-term evolution terminal in a standby state is completed through detecting the time offset/frequency offset estimation value of the primary synchronization/secondary synchronization signal of the service cell and decoding the frame number of the service cell.
In one aspect of the present disclosure, there is provided a synchronization apparatus of a terminal in a standby state, including:
the resynchronization grading module is used for grading the data receiving and processing strategies of the extended standby discontinuous receiving period and generating a resynchronization grading table;
the re-synchronization pre-arranging module is used for pre-arranging the data scheduling of the re-synchronization process through the re-synchronization hierarchical table;
the resynchronization service module comprises a data receiving configuration module, a sleep control module, a serving cell synchronization module, a MIB demodulation module, a parameter estimation module, a downlink service processing module and a data sending execution module, and is used for resynchronizing the data after the long-term evolution terminal is awakened.
In one aspect of the present disclosure, there is provided an electronic device comprising:
a processor; and
a memory having stored thereon computer readable instructions which, when executed by the processor, implement a method according to any of the above.
In one aspect of the present disclosure, a computer readable storage medium is provided, on which a computer program is stored, which when executed by a processor, implements a method according to any of the above.
A synchronization method of a terminal in a standby state in an exemplary embodiment of the present disclosure includes: and the long-term evolution terminal performs data receiving and processing strategy grading on a preset extended standby state discontinuous receiving period based on the clock time bias performance parameter and the time bias of the paging period when the preset sleep wakeup occurs, and generates a resynchronization grading table. And the long-term evolution terminal generates a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table. After the long-term evolution terminal wakes up from deep sleep, the data receiving time of the resynchronization process is preset based on the resynchronization hierarchical pre-arrangement model, so that the resynchronization of the long-term evolution terminal in a standby state is completed. The method and the device provide three-level resynchronization pre-arranging models, so that the terminal can ensure that the data quantity required to be received and processed in the resynchronization process after deep sleep awakening is minimum under the eDRX_IDLE configuration, and the purpose of saving power consumption is achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 illustrates a flowchart of a synchronization method of a terminal in a standby state according to an exemplary embodiment of the present disclosure;
fig. 2 is a schematic diagram of a first class scenario of a frequency division multiplexing serving cell of a synchronization method of a terminal in a standby state according to an exemplary embodiment of the present disclosure;
fig. 3 is a schematic diagram of a first type of scenario of a time division multiplexing serving cell of a synchronization method of a terminal in a standby state according to an exemplary embodiment of the present disclosure;
fig. 4 is a schematic diagram of a second class of frequency division multiplexing serving cell scenario of a synchronization method of a terminal in a standby state according to an exemplary embodiment of the present disclosure;
fig. 5 is a schematic diagram of a second class scenario of a time division multiplexing serving cell of a synchronization method of a terminal in a standby state according to an exemplary embodiment of the present disclosure;
fig. 6 shows a schematic block diagram of a synchronization apparatus of a terminal in a standby state according to an exemplary embodiment of the present disclosure;
FIG. 7 schematically illustrates a block diagram of an electronic device according to an exemplary embodiment of the present disclosure;
fig. 8 schematically illustrates a schematic diagram of a computer-readable storage medium according to an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, devices, steps, etc. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, or in one or more software-hardened modules, or in different networks and/or processor devices and/or microcontroller devices.
In this exemplary embodiment, there is provided a synchronization method of a terminal in a standby state first; in particular to a resynchronization method of a long-term evolution terminal in a standby state; referring to fig. 1, the synchronization method of a terminal in a standby state may include the steps of:
step S110, the long term evolution terminal performs data receiving and processing strategy grading on a preset extended standby state discontinuous receiving period based on clock time bias performance parameters and a time bias of a paging period when preset sleep awakening occurs, and generates a resynchronization grading table.
And step S120, the long-term evolution terminal generates a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table.
And step S130, after the long-term evolution terminal wakes up from deep sleep, presetting the data receiving time of the resynchronization process based on the resynchronization hierarchical pre-arrangement model, and finishing the resynchronization of the long-term evolution terminal in a standby state.
A synchronization method of a terminal in a standby state in an exemplary embodiment of the present disclosure includes: and the long-term evolution terminal performs data receiving and processing strategy grading on a preset extended standby state discontinuous receiving period based on the clock time bias performance parameter and the time bias of the paging period when the preset sleep wakeup occurs, and generates a resynchronization grading table. And the long-term evolution terminal generates a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table. After the long-term evolution terminal wakes up from deep sleep, the data receiving time of the resynchronization process is preset based on the resynchronization hierarchical pre-arrangement model, so that the resynchronization of the long-term evolution terminal in a standby state is completed. The method and the device provide three-level resynchronization pre-arranging models, so that the terminal can ensure that the data quantity required to be received and processed in the resynchronization process after deep sleep awakening is minimum under the eDRX_IDLE configuration, and the purpose of saving power consumption is achieved.
Next, a synchronization method of a terminal in a standby state in the present exemplary embodiment will be further described.
In the template configuration step S110, the long term evolution terminal may perform data reception and processing policy classification on the preset extended standby discontinuous reception period based on the clock time bias performance parameter and the time bias of the paging period when the preset sleep wakeup occurs, so as to generate a resynchronization classification table.
In the embodiment of the present example, based on the basic parameters preset by the slow clock hardware selection, triggering to receive and acquire the slow clock error parameter y (ppm) when the long term evolution terminal sleeps before the actual receiving edrx_idle configuration;
based on the slow clock error parameter, the slow clock error parameter is calculated according to the formula |delta_T|=M 10240×y×10 -3 (ms) calculating the maximum theoretical time offset delta_t for each configuration of edrx_idle. When the minimum paging cycle DRX cycle is 5.12 seconds, the value of M is 0.5, and the paging cycle DRX cycleWhen the maximum cycle is 256 x 10.24 seconds, the corresponding M values are 256, and the total M values are 257.
According to the formula resync_power=function (wakeup_befpo, rf_work_time, hwa _work_time, low_current_time), the data reception position at the sub-frame level and the data reception position at the half-frame level are determined in combination.
The advanced wake-up time length (wakeup_befpo) of the relative paging receiving point, the power consumption of radio frequency power on and the duration time (rf_work_time), the processing power consumption of an accelerator for receiving data and the time length (hwa _work_time), and the bottom current and the duration time (low_current_time) of the terminal without dormancy and without data receiving and processing are main influencing factors for the total power consumption of the whole resynchronization process.
After determining the data receiving position at the subframe level and the data receiving position at the field level, the subframe level of the PSS/SSS synchronization signal (primary synchronization/secondary synchronization signal), the received data length at the field level, and the corresponding radio frequency on time and accelerator processing time can be determined.
Based on this, a first rating threshold (thr_1) is determined, which is typically set relatively conservative in practice (so-called conservative, i.e. setting the threshold low).
Based on the link switching period, a second classification threshold (thr_2) of less than 5ms must be met. In practical applications, the threshold is generally set to be relatively conservative (i.e., conservative, i.e., the threshold is set to be low), for example, the threshold is simply rounded up to the delta_t corresponding to the M value configured in a certain paging cycle.
In the embodiment of the present example, when the preset maximum theoretical time offset is smaller than the first classification threshold, i.e., |delta_t| < thr_1, the discontinuous reception cycle of the paging cycle is divided and configured into a subframe level, and a subframe level resynchronization strategy is generated;
when the preset maximum theoretical time is larger than the first classification threshold and smaller than the second classification threshold, namely Thr_ ⩽ |Delta_T| < Thr_2, dividing the discontinuous receiving cycle of the paging cycle into a field level, and generating a field level resynchronization strategy;
when the preset maximum theoretical time is larger than a second classification threshold, namely Thr_ ⩽ |Delta_T|, dividing a discontinuous receiving cycle of a paging period into super-long stages, and generating a super-long stage resynchronization strategy;
and generating a resynchronization hierarchical table based on the subframe-level resynchronization strategy, the field-level resynchronization strategy and the ultra-long-level resynchronization strategy, storing the resynchronization hierarchical table, and scheduling the scheduled pre-arrangement use of subsequent software.
In the template configuration step S120, the long term evolution terminal may generate a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization procedure based on the resynchronization hierarchical table.
In this example embodiment, after the long term evolution terminal receives the edrx_idle configuration of the network actually, the network edrx_idle configuration is classified by querying a corresponding classification level based on the resynchronization classification table, so as to obtain a class setting of a pre-scheduling model, that is, generate subframe-level scheduling, field-level scheduling and ultra-long-level scheduling;
generating a re-synchronization subframe level pre-arrangement model based on the subframe level scheduling;
generating a resynchronization field level pre-arrangement model based on field level scheduling;
based on the ultra-long level scheduling, a re-synchronization ultra-long level pre-scheduling model is generated.
In the embodiment of the present example, as shown in fig. 2 to 3, based on the subframe level scheduling and the field level scheduling, a time frame level offset value and a frame level large frequency offset value of a 10ms boundary of a serving cell are obtained by receiving and detecting a primary (the serving cell may be frequency division multiplexing (FDD) and time division multiplexing (TDD)) synchronization/secondary synchronization signal of the serving cell, and AGC of a frequency point of the serving cell is primarily trained.
And then, the time frame level deviation value and the frame level large frequency deviation value of the 10ms boundary of the serving cell are subjected to preset adjustment to generate a frame level time deviation/frequency deviation parameter estimation value. The re-synchronized pre-rank model will output the PSS/SSS re-synchronization data reception length, the time interval between the PSS/SSS re-synchronization data start position and the PO subframe (paging subframe) header (the PO subframe of FDD is one of the set of 9,0,4,5 values, the PO subframe of TDD is one of the set of 0,1,5,6 values), and the sleep wakeup time point for the control terminal.
And generating a frame-level fine time-offset/frequency-offset parameter estimation value by carrying out data receiving and preset processing on the frame-level time-offset/frequency-offset parameter estimation value. The presynchronized preshaped model is output, the time-offset/frequency-offset parameter estimates the subframe number of data reception, and the time-offset/frequency-offset parameter estimates the advance of the subframe number of data reception relative to the time of the PO subframe head.
And based on the frame-level fine time/frequency offset parameter estimation value, re-training AGC of the frequency point of the service cell to generate a re-synchronization subframe-level pre-arrangement model and a re-synchronization field-level pre-arrangement model.
In the embodiment of the present example, as shown in fig. 4 to 5, when the time offset of the serving cell occurs for more than 5ms, it is impossible to know the time offset without demodulating the frame number, and demodulation and reception of downlink data of channels such as PDCCH and PDSCH cannot be performed, so that the master information demodulation Module (MIB) receives and demodulates the frame number information of the serving cell to generate a frame number offset value of the serving cell. The presynchronized preshared model is output, the subframe number received by the MIB and the advance of the subframe number received by the MIB relative to the time of the PO subframe head; the upper two nibs in fig. 4 represent 4 reception positions of the MIB within 40 ms.
And generating a time ultra-long level deviation value and an ultra-long level large frequency deviation value of a service cell boundary by receiving and detecting a main synchronization signal/auxiliary synchronization signal of the service cell based on the ultra-long level scheduling and the service cell frame number deviation value, and performing primary training on AGC of a frequency point of the service cell.
And generating a frame number adjustment deviation value by carrying out preset adjustment on the frame number deviation value of the serving cell, and generating an ultra-long time bias/frequency bias parameter estimation value by carrying out preset adjustment on the ultra-long level deviation value and the ultra-long level large frequency bias value based on the frame number adjustment deviation value. The re-synchronized pre-rank model will also output, the PSS/SSS re-synchronization data reception length, the time interval between the PSS/SSS re-synchronization data start position and the PO subframe (paging subframe) header (the PO subframe of FDD is one of the sets 9,0,4,5 values, the PO subframe of TDD is one of the sets 0,1,5,6 values), and the sleep wakeup time point for the control terminal.
And generating the ultra-long fine time-offset/frequency-offset parameter estimation value by carrying out data receiving and preset processing on the ultra-long time-offset/frequency-offset parameter estimation value. The presynchronized preshaped model is also output, the time-offset/frequency-offset parameter estimates the subframe number of the data reception, and the time-offset/frequency-offset parameter estimates the advance of the subframe number of the data reception relative to the time of the PO subframe head.
And based on the ultra-long fine time bias/frequency bias parameter estimation value, re-training AGC of the frequency point of the service cell to generate a re-synchronization ultra-long pre-ranking model.
Meanwhile, the re-synchronous scheduling pre-scheduling is only needed to be carried out once when the EDRX_IDLE configuration of the network is issued or updated, and then the network can be repeatedly used. With the pre-arranged model, repeated calculation is avoided, and the dynamic complex process is made static, so that system optimization and problem analysis are facilitated.
In the template configuration step S130, after the long term evolution terminal wakes up from deep sleep, the data receiving time of the resynchronization process is preset based on the resynchronization hierarchical pre-arrangement model, so that resynchronization of the long term evolution terminal in a standby state is completed.
In this example embodiment, after the above three pre-scheduling models are provided, when the sleep module controls the long term evolution terminal to wake up from sleep, a time position for starting to resynchronize at the next wake-up time may be set according to the pre-scheduling model, and after the terminal is in deep sleep wake-up, software may schedule data reception of each sub-process of resynchronization according to the pre-scheduling model. And generating preset data receiving configuration parameters.
Based on the preset data receiving configuration parameters, the correct time offset/frequency offset estimation value is obtained and proper AGC is trained through detecting the time offset/frequency offset estimation value of the main synchronization/auxiliary synchronization signals of the service cell and decoding the frame number of the service cell. Through the differential customization on the software scheduling strategy, the resynchronization of the long-term evolution terminal in the standby state ensures the downlink demodulation performance of the resynchronization and can minimize the power consumption of the whole process.
It should be noted that although the steps of the methods of the present disclosure are illustrated in the accompanying drawings in a particular order, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
In addition, in the present exemplary embodiment, a synchronization device of the terminal in a standby state is also provided; in particular to a resynchronization device of a long-term evolution terminal in a standby state. Referring to fig. 6, the synchronization apparatus 400 of a terminal in a standby state may include: a resynchronization ranking module 410, a resynchronization pre-ranking module 420, and a resynchronization traffic module 430. Wherein:
a resynchronization ranking module 410, configured to perform data reception and processing policy ranking on the extended standby discontinuous reception period, and generate a resynchronization ranking table;
a re-synchronization pre-arranging module 420, configured to pre-arrange data scheduling in a re-synchronization process according to the re-synchronization hierarchy table;
the resynchronization service module 430 includes a data receiving configuration module 431, a sleep control module 432, a serving cell synchronization module 433, a MIB demodulation module 434, a parameter estimation module 435, a downlink service processing module 436, and a data transmission execution module 437, which are configured to resynchronize data after the long term evolution terminal is awakened.
The specific details of the synchronization device module of each of the above terminals in the standby state are described in detail in the synchronization method of the corresponding one of the terminals in the standby state, so that the details are not repeated here.
It should be noted that although in the above detailed description, several modules or units of a synchronization device 400 of a terminal in a standby state are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
In addition, in an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.
Those skilled in the art will appreciate that the various aspects of the application may be implemented as a system, method, or program product. Accordingly, aspects of the application may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.
An electronic device 500 according to such an embodiment of the application is described below with reference to fig. 7. The electronic device 500 shown in fig. 5 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 7, the electronic device 500 is embodied in the form of a general purpose computing device. The components of electronic device 500 may include, but are not limited to: the at least one processing unit 510, the at least one memory unit 520, a bus 530 connecting the different system components (including the memory unit 520 and the processing unit 510), and a display unit 540.
Wherein the storage unit stores program code that is executable by the processing unit 510 such that the processing unit 510 performs steps according to various exemplary embodiments of the present application described in the above-mentioned "exemplary methods" section of the present specification. For example, the processing unit 510 may perform steps S110 to S130 as shown in fig. 1.
The storage unit 520 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 5201 and/or cache memory unit 5202, and may further include Read Only Memory (ROM) 5203.
The storage unit 520 may also include a program/utility 5204 having a set (at least one) of program modules 5203, such program modules 5205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 550 may be a local bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or using any of a variety of bus architectures.
The electronic device 500 may also communicate with one or more external devices 570 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any device (e.g., router, modem, etc.) that enables the electronic device 500 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 550. Also, electronic device 500 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 560. As shown, network adapter 560 communicates with other modules of electronic device 500 over bus 550. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 500, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.
In an exemplary embodiment of the present disclosure, a computer-readable storage medium having stored thereon a program product capable of implementing the method described above in the present specification is also provided. In some possible embodiments, the various aspects of the application may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the application as described in the "exemplary methods" section of this specification, when said program product is run on the terminal device.
Referring to fig. 8, a program product 600 for implementing the above-described method according to an embodiment of the present application is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
Furthermore, the above-described drawings are only schematic illustrations of processes included in the method according to the exemplary embodiment of the present application, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A method for synchronizing a terminal in a standby state, the method comprising:
the long-term evolution terminal performs data receiving and processing strategy grading on a preset extended standby state discontinuous receiving period based on clock time bias performance parameters and a paging period preset sleep wakeup occurrence time bias, and generates a resynchronization grading table;
the long-term evolution terminal generates a resynchronization hierarchical pre-arrangement model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table;
after the long-term evolution terminal wakes up from deep sleep, presetting the data receiving time of the resynchronization process based on the resynchronization hierarchical pre-arrangement model, and completing resynchronization of the long-term evolution terminal in a standby state;
the method further comprises the steps of:
acquiring a slow clock error parameter of a long-term evolution terminal during sleep based on a slow clock preset basic parameter;
calculating discontinuous reception configuration of a preset extended standby state based on the slow clock error parameter to generate a preset maximum theoretical time offset;
detecting the processing time length of the accelerator to the data based on the resynchronization signal, and generating a first grading threshold;
generating a second classification threshold based on the link switching period;
the method further comprises the steps of:
when the preset maximum theoretical time bias is smaller than a first grading threshold, dividing a discontinuous receiving cycle of a paging cycle into a subframe level, and generating a subframe level resynchronization strategy;
when the preset maximum theoretical time is larger than the first classification threshold and smaller than the second classification threshold, dividing discontinuous receiving circulation of the paging cycle into field level, and generating a field level resynchronization strategy;
when the preset maximum theoretical time is larger than a second classification threshold, dividing a discontinuous receiving cycle of a paging cycle into an ultra-long stage, and generating an ultra-long stage resynchronization strategy;
and generating a resynchronization hierarchical table based on the subframe-level resynchronization strategy, the field-level resynchronization strategy and the ultra-long-level resynchronization strategy.
2. The synchronization method of a terminal in a standby state according to claim 1, wherein the method further comprises:
after the long-term evolution terminal receives the network-extended standby state discontinuous reception configuration, classifying the network-extended standby state discontinuous reception configuration based on the resynchronization classification table to generate subframe-level scheduling, field-level scheduling and ultra-long-level scheduling;
generating a re-synchronization subframe level pre-arrangement model based on the subframe level scheduling;
generating a resynchronization field level pre-arrangement model based on field level scheduling;
based on the ultra-long level scheduling, a re-synchronization ultra-long level pre-scheduling model is generated.
3. The synchronization method of a terminal in a standby state according to claim 2, wherein the method further comprises:
based on the subframe level scheduling and the field level scheduling, generating a time frame level deviation value and a frame level large frequency deviation value of a boundary of a service cell by receiving and detecting a main synchronization signal/auxiliary synchronization signal of the service cell, and generating a frame level time deviation/frequency deviation parameter estimation value by carrying out preset adjustment on the frame level deviation value and the frame level large frequency deviation value;
generating a frame-level fine time-offset/frequency-offset parameter estimation value by carrying out data receiving and preset processing on the frame-level time-offset/frequency-offset parameter estimation value;
based on the frame-level fine time/frequency offset parameter estimation value, generating a resynchronization subframe-level pre-ranking model and a resynchronization field-level pre-ranking model through automatic gain control training of a service cell frequency point.
4. The synchronization method of a terminal in a standby state according to claim 2, wherein the method further comprises:
receiving and demodulating the frame number information of the service cell through a main information demodulation module, generating a frame number deviation value of the service cell, and generating a time super-long grade deviation value and a super-long grade large frequency deviation value of the boundary of the service cell through receiving and detecting the main synchronization/auxiliary synchronization signals of the service cell based on the super-long grade scheduling and the frame number deviation value of the service cell;
generating a frame number adjustment deviation value by carrying out preset adjustment on a frame number deviation value of a serving cell, and generating an ultra-long time bias/frequency bias parameter estimation value by carrying out preset adjustment on the ultra-long level deviation value and the ultra-long level large frequency bias value based on the frame number adjustment deviation value;
generating an ultra-long fine time-offset/frequency-offset parameter estimation value by carrying out data receiving and preset processing on the ultra-long time-offset/frequency-offset parameter estimation value;
and generating a re-synchronization ultra-long stage pre-ranking model through automatic gain control training of the frequency points of the service cell based on the ultra-long stage fine time/frequency offset parameter estimation value.
5. The synchronization method of a terminal in a standby state according to claim 1, wherein the method further comprises:
when the sleep module controls the long-term evolution terminal to wake up from sleep, the data receiving time of the resynchronization process is preset through the data receiving configuration module based on the resynchronization hierarchical pre-arrangement model, and preset data receiving configuration parameters are generated;
based on the preset data receiving configuration parameters, the resynchronization of the long-term evolution terminal in a standby state is completed through detecting the time offset/frequency offset estimation value of the primary synchronization/secondary synchronization signal of the service cell and decoding the frame number of the service cell.
6. A synchronization device for a terminal in a standby state, the device comprising:
the resynchronization grading module is used for grading the data receiving and processing strategies of the extended standby discontinuous receiving period and generating a resynchronization grading table; generating a resynchronization hierarchical pre-arranging model by pre-arranging data scheduling of a resynchronization process based on the resynchronization hierarchical table; after waking up from deep sleep, presetting the data receiving time of the resynchronization process based on the resynchronization hierarchical pre-arrangement model, and completing resynchronization in a standby state;
acquiring a slow clock error parameter of a long-term evolution terminal during sleep based on a slow clock preset basic parameter;
calculating discontinuous reception configuration of a preset extended standby state based on the slow clock error parameter to generate a preset maximum theoretical time offset;
detecting the processing time length of the accelerator to the data based on the resynchronization signal, and generating a first grading threshold;
generating a second classification threshold based on the link switching period;
when the preset maximum theoretical time bias is smaller than a first grading threshold, dividing a discontinuous receiving cycle of a paging cycle into a subframe level, and generating a subframe level resynchronization strategy;
when the preset maximum theoretical time is larger than the first classification threshold and smaller than the second classification threshold, dividing discontinuous receiving circulation of the paging cycle into field level, and generating a field level resynchronization strategy;
when the preset maximum theoretical time is larger than a second classification threshold, dividing a discontinuous receiving cycle of a paging cycle into an ultra-long stage, and generating an ultra-long stage resynchronization strategy;
generating a resynchronization hierarchical table based on the subframe-level resynchronization strategy, the field-level resynchronization strategy, and the ultra-long-level resynchronization strategy;
the re-synchronization pre-arranging module is used for pre-arranging the data scheduling of the re-synchronization process through the re-synchronization hierarchical table;
the resynchronization service module comprises a data receiving configuration module, a sleep control module, a serving cell synchronization module, a MIB demodulation module, a parameter estimation module, a downlink service processing module and a data sending execution module, and is used for resynchronizing the data after the long-term evolution terminal is awakened.
7. An electronic device comprising a processor and a memory having stored thereon computer readable instructions which, when executed by the processor, implement the method according to any one of claims 1 to 5.
8. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, implements the method according to any of claims 1 to 5.
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