CN111491325B - Method and device for using secondary cell data, receiver and storage medium - Google Patents
Method and device for using secondary cell data, receiver and storage medium Download PDFInfo
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- CN111491325B CN111491325B CN202010259886.7A CN202010259886A CN111491325B CN 111491325 B CN111491325 B CN 111491325B CN 202010259886 A CN202010259886 A CN 202010259886A CN 111491325 B CN111491325 B CN 111491325B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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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
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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 embodiment of the application discloses a method, a device, a receiver and a storage medium for using secondary cell data, which belong to the technical field of communication, wherein the receiver can receive a downlink signal of a target secondary cell, and enter a monitoring mode aiming at the target secondary cell when the receiving quality of the downlink signal is smaller than a target threshold value, and in the monitoring mode, when the moment of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, the receiver stops executing preset processing on the downlink signal. The application can automatically determine whether to enter the monitoring mode according to the receiving quality of the downlink signal of the target auxiliary cell, so that the receiver can automatically stop processing the downlink signal sent by the auxiliary cell with poor quality, and the energy consumption of the receiver is saved on the premise of ensuring the performance of the receiver.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a method and a device for using auxiliary cell data, a receiver and a storage medium.
Background
With the development of communication technology, the same receiver can perform information interaction with a Primary Cell (abbreviated as Pcell) and a Secondary Cell (abbreviated as Scell) at the same time, so as to obtain higher communication rate and communication quality.
In some possible application scenarios, a scenario may occur where the signal quality of the primary cell is better but the signal quality of the secondary cell is not good. In this scenario, the receiver will still perform preset processing on the signal sent by the secondary cell in the original manner, but the obtained signal has poor quality and wastes the power of the receiver.
Disclosure of Invention
The embodiment of the application provides a method and a device for using secondary cell data, a receiver and a storage medium. The technical scheme is as follows:
according to an aspect of the present application, there is provided a method for using secondary cell data, the method comprising:
receiving a downlink signal of a target auxiliary cell;
when the receiving quality of the downlink signal is smaller than a target threshold value, entering a monitoring mode aiming at the target auxiliary cell;
in the monitoring mode, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, stopping executing preset processing on the downlink signal.
According to another aspect of the present application, there is provided an apparatus for using secondary cell data, the apparatus comprising:
the signal receiving module is used for receiving the downlink signal of the target auxiliary cell;
the monitoring entry module is used for entering a monitoring mode aiming at the target auxiliary cell when the receiving quality of the downlink signal is smaller than a target threshold value;
and the operation stopping module is used for stopping executing preset processing on the downlink signal when the moment of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range in the monitoring mode.
According to another aspect of the present application, there is provided a receiver comprising a processor and a memory, the memory having stored therein at least one instruction which is loaded and executed by the processor to implement a method of using secondary cell data as provided by an implementation of the present application.
According to another aspect of the present application, there is provided a computer readable storage medium having stored therein at least one instruction loaded and executed by a processor to implement a method of using secondary cell data as provided by an implementation of the present application.
The technical scheme provided by the embodiment of the application has the beneficial effects that:
the receiver may receive a downlink signal of the target secondary cell, and enter a monitoring mode for the target secondary cell when the reception quality of the downlink signal is less than a target threshold value, where in the monitoring mode, when a time of receiving the downlink signal is in a preset time domain range or a signal quality of the downlink signal is in a preset signal quality range, the performing of the preset processing on the downlink signal is stopped. The receiver can automatically determine whether to enter the monitoring mode according to the receiving quality of the downlink signal of the target auxiliary cell or the moment of receiving the downlink signal, so that the receiver can automatically stop processing the downlink signal transmitted by the auxiliary cell with poor quality, and the energy consumption of the receiver is saved on the premise of ensuring the performance of the receiver.
Drawings
In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a block diagram of a receiver according to an exemplary embodiment of the present application;
fig. 2 is a flowchart of a method for using secondary cell data according to an exemplary embodiment of the present application;
fig. 3 is a flowchart of a method for using secondary cell data according to another exemplary embodiment of the present application;
FIG. 4 is a schematic diagram of a scenario of cross-carrier scheduling provided based on the embodiment shown in FIG. 3;
fig. 5 is a block diagram of a secondary cell data usage apparatus according to an exemplary embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
In order that the scheme shown in the embodiment of the present application can be easily understood, several terms appearing in the embodiment of the present application are described below.
3GPP (3 rd Generation Partnership Project, third generation partnership project): an organization that formulates standardized communication rules.
NR (New Radio, fifth generation Mobile communication New air interface).
CA (Carrier Aggregation ).
MAC (Media Access, media Access layer).
CE (Control Element).
PDCCH (Physical Data Control Channel ).
PDSCH (Physical Data Shared Channel ).
CSI (Channel State Information ).
DRX (Discontinuous Receiving, discontinuous reception).
In an application scenario according to an embodiment of the present application, a receiver may be capable of simultaneously performing communication connection with a plurality of CAs. Illustratively, the plurality of CAs may include both Pcell and Scell.
In one possible way, among the multiple scenarios supported by CA, there is a scenario where the signal quality of Pcell is strong and the signal quality of Scell is weak. If the signal quality of the Scell is weak, there are two ways to validate the signal of the Scell (english: enabled Scell) or invalidate the signal of the Scell (english: disabled Scell).
In one possible manner of enabling scells, either an enabled Scell or a disabled Scell may be enabled by setting an inactivity timer (english).
In another possible manner of enabling scells, the enable command and disable command may be sent to the Pcell or Scell via a media access layer control element (english: MAC CE).
In the application scenario of the outfield, the inactivity timer is always set to infinity (english: INFINIT). In this case, the Scell can be enabled only by means of the medium access layer control element. When the signal quality of the Scell is very poor and the signal of the downlink MAC CE cannot be received, for CA of non-cross carrier scheduling, the Pcell cannot send a disable command to the Scell with weak signal quality. In this scenario, i.e. in the scenario where the Scell signal command is weak, the UE (User Equipment, chinese) still needs to transmit SRS (english: sounding Reference Signal, chinese: channel sounding reference signal), CSI (english: channel State Information, channel state information) and decode PDCCH on the Pcell.
However, in the scenario where the Scell signal quality is poor, the UE will receive and process the Scell signal. Since the UE cannot receive a valid signal from the Scell, it cannot transmit a valid signal to the Scell. Thus, the UE will consume unnecessary power and processing resources on the Scell.
In the embodiment of the present application, a method for using Scell data will be described. In the method, the concept of the monitoring mode of the Scell is introduced, so that the UE has the capability of actively disabling the Scell.
The method for using the secondary cell data in the embodiment of the application can be applied to a receiver. The receiver may include a microcomputer, a cell phone, a tablet computer, a laptop computer, a desktop computer, a computer all-in-one, a server, a workstation, a television, or the like. In one possible approach, the receiver may be a UE.
Referring to fig. 1, fig. 1 is a block diagram of a receiver according to an exemplary embodiment of the present application, where, as shown in fig. 1, the receiver includes a processor 120, a memory 140 and a radio frequency antenna 160, where at least one instruction is stored in the memory 140, and the instruction is loaded and executed by the processor 120 to implement a method for using secondary cell data according to various method embodiments of the present application. The radio frequency antenna 160 is used for receiving and transmitting wireless signals.
In the present application, the receiver 100 is an electronic device having a function of using secondary cell data. When the receiver 100 receives a downlink signal of a target secondary cell and the reception quality of the downlink signal is smaller than a target threshold value, the receiver 100 can enter a monitoring mode for the target secondary cell; in the monitoring mode, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, stopping executing preset processing on the downlink signal.
Processor 120 may include one or more processing cores. The processor 120 utilizes various interfaces and lines to connect various portions of the overall receiver 100, perform various functions of the receiver 100 and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 140, and invoking data stored in the memory 140. Alternatively, the processor 120 may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 120 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 120 and may be implemented by a single chip.
The Memory 140 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (ROM). Optionally, the memory 140 includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 140 may be used to store instructions, programs, code sets, or instruction sets. The memory 140 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described below, etc.; the storage data area may store data and the like referred to in the following respective method embodiments.
The rf antenna 160 is used to receive signals transmitted by the transmitter and to process the signals within the receiver. In one possible processing mode, the rf antenna 160 transmits the signal to the rf front end, which performs the target processing and then transmits the signal to the baseband. Alternatively, the target process may be a downsampling process.
Referring to fig. 2, fig. 2 is a flowchart of a method for using secondary cell data according to an exemplary embodiment of the present application. The method for using the secondary cell data may be applied to the receiver shown in fig. 1. In fig. 2, the method for using the secondary cell data includes:
step 210, receiving the downlink signal of the target secondary cell.
In an embodiment of the application, the receiver may use multiple CAs. In one possible approach, the plurality of CAs may be 1 Pcell and 1 Scell. In another possible approach, the plurality of CAs may also be 1 Pcell and at least 2 scells.
That is, if the plurality of CAs are 1 Pcell and 1 Scell, the downlink signal of the target secondary cell received by the receiver is a signal of the Scell among the plurality of CAs. If the plurality of CAs are 1 Pcell and at least 2 scells, the downlink signal of the target secondary cell received by the receiver is the downlink signal of the target secondary cell received in the at least 2 scells.
For example, if the receiver uses Pcell, scell1, and Scell2, the target secondary cell is Scell1. In this scenario, the receiver receives the Scell1 signal.
For another example, if the receiver uses Pcell, scell1, and Scell2, the target secondary cells are Scell1 and Scell2. In this scenario, the receiver receives the downlink signals of Scell1 and Scell2, respectively. In this scenario, the receiver can calculate the reception quality of the downlink signal of Scell1, and the receiver can also calculate the reception quality of the downlink signal of Scell2.
That is, the receiver can receive the downlink signals of n target secondary cells respectively, where n is a positive integer not less than 2; and calculating the receiving quality of each downlink signal in the downlink signals of the n target auxiliary cells.
Step 220, when the reception quality of the downlink signal is less than the target threshold value, entering a monitoring mode for the target secondary cell.
Illustratively, the receiver is capable of entering a monitoring mode for a target secondary cell when the reception quality of the downlink signal is less than a target threshold. The receiving quality of the downlink receiving signal can be represented by the signal-to-noise ratio of the target auxiliary cell or the error number of the cyclic redundancy check.
In one possible manner, when the reception quality of the downlink reception signal is represented by the signal-to-noise ratio of the target secondary cell, the receiver can enter a monitoring mode for the target secondary cell when the signal-to-noise ratio of the target secondary cell is less than the signal-to-noise ratio threshold. Illustratively, the SNR of the target secondary cell in this scenario may be identified by a parameter scell_snr, and the SNR threshold may be represented by a parameter off_snr_thres.
In another possible manner, when the reception quality of the downlink reception signal is represented by the number of errors of the cyclic redundancy check of the target secondary cell, the receiver can enter the monitoring mode for the target secondary cell when the number of errors of the cyclic redundancy check is greater than the threshold value of the number of errors. Illustratively, the number of errors in the cyclic redundancy check of the target secondary cell may be represented by a parameter crc_error, and the threshold number of errors may be represented by a parameter off_crc_thres.
In step 230, in the monitoring mode, when the time of receiving the downlink signal is within the preset time domain range or the signal quality of the downlink signal is within the preset signal quality range, the preset processing is stopped.
In the embodiment of the application, the receiver can comprise two states, namely an active state and a sleep state in the monitoring mode.
When the receiver is in the active state of the monitoring mode, the receiver can calculate a time offset (english) estimation result, a frequency offset (english) estimation result and a signal to noise ratio estimation result for the signal of the synchronization channel.
While the receiver is in the sleep state in the monitor mode, the receiver will enter the sleep state for the target secondary cell. In the monitoring mode, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, the preset processing is stopped.
Alternatively, the preset time domain range may be a time domain range of a sleep interval, and the preset signal quality range may be a range with poor signal quality of the downlink signal.
Optionally, in one possible application, in the monitoring mode, the time offset estimation result and the frequency offset estimation result are only used for calculating the signal to noise ratio of the synchronization channel, and are not used for adjusting time (english) information and frequency (english) information of the target secondary cell.
Illustratively, the synchronization channel may be a SYNC channel.
Optionally, the preset process includes demodulating data in the physical data control channel. In one possible manner, the preset process further includes calculating a time offset estimation result, a frequency offset estimation result, and a signal to noise ratio estimation result for the signal of the synchronization channel.
Optionally, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, the receiver can also control the radio frequency front end to stop down-sampling the downlink signal sent by the target secondary cell. Schematically, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, the signal quality transmitted by the target auxiliary cell is poor, and the receiver can achieve the maximum power saving effect by indicating the radio frequency front end to stop downsampling the signal, and realize the synchronous power saving capability of the radio frequency front end and the baseband.
In summary, the method for using secondary cell data provided in this embodiment can enable a receiver to receive a downlink signal of a target secondary cell, and enter a monitoring mode for the target secondary cell when the reception quality of the downlink signal is less than a target threshold value, where in the monitoring mode, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, the performing of the preset processing on the downlink signal is stopped. The application can automatically determine whether to enter the monitoring mode according to the receiving quality of the downlink signal of the target auxiliary cell, and determine whether to stop executing the preset processing on the downlink signal in the monitoring mode, so that the receiver can automatically stop processing the downlink signal sent by the auxiliary cell with poor quality, and the energy consumption of the receiver is saved on the premise of ensuring the performance of the receiver.
Based on the scheme disclosed in the previous embodiment, the receiver can also autonomously adjust the period of the monitoring mode and determine the sleep condition in the monitoring mode, so as to improve the control capability of the receiver on the downlink signal of the target secondary cell, please refer to the following embodiment.
Referring to fig. 3, fig. 3 is a flowchart of a method for using secondary cell data according to another exemplary embodiment of the present application. The method of using the secondary cell data may be applied to the receiver shown above. In fig. 3, the method for using the secondary cell data includes:
step 311, receiving the downlink signal of the target secondary cell.
Illustratively, the execution of step 311 is the same as that of step 210, and will not be described in detail herein.
Step 312, it is determined whether the snr of the target secondary cell is less than an snr threshold or whether the number of errors in the crc is greater than an error count threshold.
If step 312 passes the determination, step 320 is performed. If step 312 fails, the end flow is executed.
Step 320, when the reception quality of the downlink signal is less than the target threshold value, entering a monitoring mode for the target secondary cell.
Illustratively, the execution of step 320 is the same as that of step 220, and will not be described in detail herein.
Optionally, the receiver is further capable of receiving the downlink signal in a discontinuous reception (english: discontinuous Reception, abbreviated: DRX) mode in the monitoring mode, where a period of the discontinuous reception is less than or equal to a period of a synchronization channel of the downlink signal.
When the receiver enters an MDRX (English: monitor DRX) state, the receiver only receives signals of the synchronous channel. Illustratively, the signals of the synchronization channel may be PSS (English: primary Synchronization Signal, chinese: primary synchronization signal) and SSS (English: secondary Synchronization Signal, chinese: secondary synchronization signal) in the SYNC channel signal.
Alternatively, the period of DRX will be designed to be short enough to enable fast monitoring of the timing when the signal quality of the target secondary cell is good. In the design of the application, the period of discontinuous reception is less than or equal to the period of the synchronous channel of the downlink signal, so that the signals of the synchronous signal can be sampled.
Illustratively, the method for using the secondary cell data provided by the application can adjust the DRX period of the receiver for the target secondary cell according to the period of the corresponding synchronous channel in a 4G FDD (English: frequency Division Duplexing, chinese: frequency division duplex) mode, a TDD (English: time Division Duplexing, chinese: time division duplex) mode or a 5G NR (English: new Radio, chinese: new air interface) mode.
In step 331, in the monitoring mode, when the time of receiving the downlink signal is in the sleep interval, the preset processing is stopped for the downlink signal.
Optionally, the embodiment of the application can judge whether the system time is in sleep time or not by executing expiration (English: expire) judgment through a wake-up Timer (English: wakeup).
Illustratively, in the monitoring mode, the receiver can determine whether to perform the preset processing on the downlink signal according to the time when the downlink signal is received. After the receiver obtains the time of receiving the downlink signal, the receiver can determine whether the time of receiving the downlink signal belongs to the sleep interval.
It should be noted that the sleep interval may be a specified period within a target period, and the target period further includes a wake-up interval. The length of the target period and the signal-to-noise ratio of the downlink signal form a negative correlation.
For example, when the target period is 300 milliseconds, the sleep interval may be 1 st to 100 th milliseconds, and the wake-up interval may be 100 th to 300 th milliseconds.
On the one hand, when the signal-to-noise ratio of the downlink signal is high, the signal quality of the downlink signal of the target auxiliary cell is good, and the receiver needs to wake up from the sleep interval as soon as possible. At this time, the length of the target period can be set to be shorter, so that the receiver is awakened from the sleep interval at a faster speed, and preset processing is performed on the downlink signal of the target secondary cell.
On the other hand, when the signal-to-noise ratio of the downlink signal is low, the signal quality of the downlink signal of the target auxiliary cell is poor, and the receiver is required to keep the sleep state, and the receiver does not need to wake up from the sleep interval. At this time, the length of the target period can be set longer, so that the receiver is not awakened frequently, and electric energy is saved.
Illustratively, the initial value of the target Period may be selected from the Period set n_mole_period, and the minimum value in the Period set n_mole_period is determined as the initial value of the target Period. When the target period needs to be updated, the corresponding target period can be selected according to the value of the parameter scell_sync_chan_corr_snr.
In order to improve the usage performance and the power saving capability of the secondary cell data, the Period set n_mole_period may be set with a Period value as different as possible.
In step 332, in the monitoring mode, when the time of receiving the downlink signal is in the wake-up interval, the active state is entered.
Step 333, the synchronization channel quality is calculated.
Illustratively, in the embodiment of the present application, the receiver can calculate the channel quality of the SYNC channel, and uses the channel quality of the SYNC channel as the synchronization channel quality. In one possible way, the channel quality of this SYNC channel will be represented by the parameter sync_chan_corr.
Optionally, the calculation of the parameter sync_chan_corr includes an application scenario of 4G or an application scenario of 5G. When calculating the parameter sync_chan_corr, a set of parameters meeting the standard (such as SNR) can be found in a set of time (english: timing) or frequency (english: frequency) to calculate, where the parameters may be parameters of the primary cell corresponding to the target secondary cell.
In step 334, in the monitoring mode, if the synchronization channel quality is smaller than the quality threshold, the performing of the preset processing on the downlink signal is stopped.
Illustratively, the quality threshold value may be represented by the parameter ON_Corr_SNR_Thres.
In contrast, in the monitoring mode, if the quality of the synchronization channel is greater than or equal to the quality threshold value, the cross-carrier scheduling state is obtained.
Step 340, determining whether the downlink signal is cross-carrier scheduled.
In another implementation manner of the present application, the receiver may determine whether the downlink signal is cross-carrier scheduled according to the cross-carrier scheduling state.
Schematically, if the cross-carrier scheduling state indicates that the downlink signal is not cross-carrier scheduled, the decoding error state of the physical downlink control channel is obtained.
Schematically, if the cross-carrier scheduling state indicates that the downlink signal performs cross-carrier scheduling, the number of decoding errors of the physical downlink shared channel is obtained. In the embodiment of the application, the step can be performed by judging the number of the cyclic redundancy check errors of the physical downlink shared channel.
In step 350, if the downlink signal is not cross-carrier scheduled, the decoding result of the physical downlink control channel of the downlink signal is determined.
In another implementation of the present application, the receiver may determine whether the decoding of the downlink signal is correct or incorrect based on the physical downlink control channel decoding error status.
Illustratively, if the decoding error status of the physical downlink control channel indicates a decoding error of the downlink signal, stopping performing the preset processing on the downlink signal.
Schematically, if the decoding error state of the physical downlink control channel indicates that the decoding of the downlink signal is correct, marking the downlink signal as an available state; and executing preset processing on the downlink signal marked as the available state.
Illustratively, in the embodiment of the present application, the receiver enters the sleep mode for the target secondary cell, that is, stops performing the preset processing on the downlink signal.
Step 360, determining whether the number of cyclic redundancy check errors of the physical downlink shared channel is greater than the threshold number of errors.
Illustratively, step 360 may be implemented by having the receiver determine whether PDSCH CRC error is greater than Threshold.
Illustratively, when the number of cyclic redundancy check errors of the physical downlink shared channel is greater than the threshold number of error codes, stopping executing the preset processing on the downlink signal.
Schematically, if the number of decoding errors of the physical downlink shared channel is less than or equal to the threshold number, marking the downlink signal as an available state; and executing preset processing on the downlink signal marked as the available state.
In the embodiment of the application, the receiver can mark the time domain information of the downlink signal as an available state. Alternatively, the receiver can mark the frequency domain information of the downlink signal as available. Alternatively, the receiver can mark the frequency domain information and the time domain information of the downlink signal as available states.
Illustratively, when time domain information or frequency domain information of a downlink signal of a target secondary cell is marked as an available state, the information is processed according to a preset processing manner.
Step 370, save time domain information and/or frequency domain information.
Step 380, exit the monitoring mode for the target secondary cell.
Illustratively, a scenario of cross-carrier scheduling to which embodiments of the present application may be applied is described below. Referring to fig. 4, fig. 4 is a schematic diagram of a scenario of cross-carrier scheduling provided based on the embodiment shown in fig. 3. In fig. 4, a Macro Cell (english: macro Cell) 410 includes a carrier element 1 (abbreviated as CC 1) 411 of high power and a carrier element 2 (abbreviated as CC 2) 412 of low power. The microcell 420 includes a low-power carrier element 1 (abbreviated as CC 1) 421 and a low-power carrier element 2 (abbreviated as CC 2) 422.
In one aspect, in the macro cell scenario, carrier element 411 is a Pcell and carrier element 412 is a Scell. The PDCCH in carrier element 411 will control the PDSCH in carrier element 411 and the PDSCH in carrier element 412.
On the other hand, in the case of a microcell, carrier element 421 is Scell and carrier element 422 is Pcell. The PDCCH in carrier element 422 will control the PDSCH in carrier element 421 and the PDSCH in carrier element 422.
In summary, in the newly added monitoring mode, the embodiment can effectively use the measurement result of the synchronization channel to enable the receiver to intelligently identify the state of the target secondary cell at the local end, so as to select to enter the monitoring mode or exit the monitoring mode, and no invalid data of the target secondary cell need to be processed, thereby achieving the purpose of effectively saving electricity on the premise of ensuring the performance of the receiver.
The following are examples of the apparatus of the present application that may be used to perform the method embodiments of the present application. For details not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the method of the present application.
Referring to fig. 5, fig. 5 is a block diagram illustrating a secondary cell data usage apparatus according to an exemplary embodiment of the present application. The means for using secondary cell data may be implemented as all or part of the receiver by software, hardware or a combination of both. The device comprises:
a signal receiving module 510, configured to receive a downlink signal of a target secondary cell;
a monitor entry module 520, configured to enter a monitor mode for the target secondary cell when the reception quality of the downlink signal is less than a target threshold value;
an operation stopping module 530, configured to stop performing a preset process on the downlink signal when the time of receiving the downlink signal is within a preset time domain range or the signal quality of the downlink signal is within a preset signal quality range in the monitoring mode.
In an alternative embodiment, the operation stopping module 530 is configured to stop performing the preset process on the downlink signal when the time of receiving the downlink signal is in the sleep interval in the monitoring mode.
In an alternative embodiment, the sleep interval involved in the apparatus belongs to a specified period within a target period, the target period further comprising a wake-up interval; the length of the target period and the signal-to-noise ratio of the downlink signal form a negative correlation.
In an alternative embodiment, the operation stopping module 530 is configured to stop performing the preset processing on the downlink signal if the synchronization channel quality is less than a quality threshold in the monitoring mode.
In an alternative embodiment, the synchronization channel quality referred to in the apparatus is synchronization channel correlation.
In an optional embodiment, the operation stopping module 530 is configured to obtain, in the monitoring mode, the cross-carrier scheduling state if the synchronization channel quality is greater than or equal to a quality threshold value; if the cross-carrier scheduling state indicates that the downlink signal is not subjected to cross-carrier scheduling, acquiring the decoding error state of the physical downlink control channel; and if the decoding error state of the physical downlink control channel indicates the decoding error of the downlink signal, stopping executing the preset processing on the downlink signal.
In an optional embodiment, the apparatus further includes a first state labeling module, where the first state labeling module is configured to label the downlink signal as an available state if the decoding error status of the physical downlink control channel indicates that the decoding of the downlink signal is correct; the operation stopping module 530 is configured to perform the preset process on the downlink signal marked as being in the available state.
In an optional embodiment, the operation stopping module 530 is configured to obtain, in the monitoring mode, a cross-carrier scheduling state if the synchronization channel quality is greater than or equal to a quality threshold value; if the cross-carrier scheduling state indicates that the downlink signal carries out cross-carrier scheduling, acquiring the decoding error number of the physical downlink shared channel; and if the decoding error number of the physical downlink shared channel is greater than the error code threshold number, stopping executing the preset processing on the downlink signal.
In an optional embodiment, the apparatus further includes a second state labeling module, where the second state labeling module is configured to label the downlink signal as an available state if the number of decoding errors of the physical downlink shared channel is less than or equal to the threshold number; the operation stopping module 530 is configured to perform the preset process on the downlink signal marked as being in the available state.
In an optional embodiment, the second state labeling module is configured to label at least one of time domain information or frequency domain information of the downlink signal as an available state.
In an alternative embodiment, the apparatus further comprises an exit module for exiting the monitoring mode for the target secondary cell.
In an alternative embodiment, the apparatus receives the downlink signal in the monitoring mode by adopting a discontinuous reception mode, and the period of the discontinuous reception is less than or equal to the period of a synchronization channel of the downlink signal.
In an alternative embodiment, the preset process to which the apparatus relates includes demodulating data in a physical data control channel.
In an optional embodiment, the signal receiving module 510 is configured to receive downlink signals of n target secondary cells, where n is a positive integer not less than 2; and calculating the receiving quality of each downlink signal in the downlink signals of the n target auxiliary cells.
In an optional embodiment, the apparatus further includes a front-end control module, configured to control, in the monitoring mode, the radio frequency front-end to stop downsampling the downlink signal when a time of receiving the downlink signal is within a preset time domain range or a signal quality of the downlink signal is within a preset signal quality range.
In summary, in the newly added monitoring mode, the embodiment can effectively use the measurement result of the synchronization channel to enable the receiver to intelligently identify the state of the target secondary cell at the local end, so as to select to enter the monitoring mode or exit the monitoring mode, and no invalid data of the target secondary cell need to be processed, thereby achieving the purpose of effectively saving electricity on the premise of ensuring the performance of the receiver.
Embodiments of the present application also provide a computer readable medium storing at least one instruction that is loaded and executed by the processor to implement the method for using secondary cell data according to the above embodiments.
It should be noted that: the apparatus for using secondary cell data provided in the foregoing embodiment is only exemplified by the division of the foregoing functional modules when executing the method for using secondary cell data, and in practical application, the foregoing functional allocation may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the device for using the secondary cell data provided in the foregoing embodiment and the method embodiment for using the secondary cell data belong to the same concept, and the specific implementation process of the device is detailed in the method embodiment and will not be described herein.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the present application, and any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present application should be included in the scope of the present application.
Claims (14)
1. A method for using secondary cell data, the method comprising:
receiving a downlink signal of a target auxiliary cell;
when the receiving quality of the downlink signal is smaller than a target threshold value, entering a monitoring mode aiming at the target auxiliary cell;
in the monitoring mode, stopping performing preset processing on the downlink signal when the moment of receiving the downlink signal is in a sleep interval;
in the monitoring mode, when the moment of receiving the downlink signal is in a wake-up interval, if the quality of the synchronous channel is smaller than a quality threshold value, stopping executing the preset processing on the downlink signal;
in the monitoring mode, when the moment of receiving the downlink signal is in the wake-up interval, if the quality of the synchronous channel is greater than or equal to the quality threshold value, acquiring a cross-carrier scheduling state;
if the cross-carrier scheduling state indicates that the downlink signal is not subjected to cross-carrier scheduling, acquiring a decoding error state of a physical downlink control channel; if the decoding error state of the physical downlink control channel indicates the decoding error of the downlink signal, stopping executing the preset processing on the downlink signal;
if the cross-carrier scheduling state indicates that the downlink signal carries out cross-carrier scheduling, acquiring the decoding error number of the physical downlink shared channel; and if the decoding error number of the physical downlink shared channel is greater than the error code threshold number, stopping executing the preset processing on the downlink signal.
2. The method of claim 1, wherein the sleep interval and the wake interval belong to different specified periods within one target period;
the length of the target period and the signal-to-noise ratio of the downlink signal form a negative correlation.
3. The method of claim 1, wherein the synchronization channel quality is synchronization channel correlation.
4. The method according to claim 1, wherein the method further comprises:
if the decoding error state of the physical downlink control channel indicates that the decoding of the downlink signal is correct, marking the downlink signal as an available state;
and executing the preset processing on the downlink signal marked as the available state.
5. The method according to claim 1, wherein the method further comprises:
if the number of decoding errors of the physical downlink shared channel is smaller than or equal to the threshold number, marking the downlink signal as an available state;
and executing the preset processing on the downlink signal marked as the available state.
6. The method according to claim 4 or 5, wherein said marking the downstream signal as available comprises:
and marking at least one of time domain information or frequency domain information of the downlink signal as an available state.
7. The method according to claim 4 or 5, characterized in that after said performing of said preset processing on said downstream signal marked as available, said method further comprises:
and exiting the monitoring mode aiming at the target auxiliary cell.
8. The method according to claim 1, wherein in the monitoring mode, the downlink signal is received in a discontinuous reception manner, and a period of the discontinuous reception is less than or equal to a period of a synchronization channel of the downlink signal.
9. The method of claim 1, wherein the pre-set processing comprises demodulating data in a physical data control channel.
10. The method of claim 1, wherein the receiving the downlink signal of the target secondary cell comprises:
respectively receiving downlink signals of n target auxiliary cells, wherein n is a positive integer not less than 2;
and calculating the receiving quality of each downlink signal in the downlink signals of the n target auxiliary cells.
11. The method according to claim 1, wherein the method further comprises:
in the monitoring mode, when the time of receiving the downlink signal is in a preset time domain range or the signal quality of the downlink signal is in a preset signal quality range, the radio frequency front end is controlled to stop downsampling the downlink signal.
12. An apparatus for using secondary cell data, the apparatus comprising:
the signal receiving module is used for receiving the downlink signal of the target auxiliary cell;
the monitoring entry module is used for entering a monitoring mode aiming at the target auxiliary cell when the receiving quality of the downlink signal is smaller than a target threshold value;
an operation stopping module, configured to stop performing preset processing on the downlink signal when the time of receiving the downlink signal is in a sleep interval in the monitoring mode;
the operation stopping module is further configured to stop performing the preset processing on the downlink signal if the quality of the synchronization channel is less than a quality threshold value when the time of receiving the downlink signal is in a wake-up interval in the monitoring mode; in the monitoring mode, when the moment of receiving the downlink signal is in the wake-up interval, if the quality of the synchronous channel is greater than or equal to the quality threshold value, acquiring a cross-carrier scheduling state; if the cross-carrier scheduling state indicates that the downlink signal is not subjected to cross-carrier scheduling, acquiring a decoding error state of a physical downlink control channel; if the decoding error state of the physical downlink control channel indicates the decoding error of the downlink signal, stopping executing the preset processing on the downlink signal; if the cross-carrier scheduling state indicates that the downlink signal carries out cross-carrier scheduling, acquiring the decoding error number of the physical downlink shared channel; and if the decoding error number of the physical downlink shared channel is greater than the error code threshold number, stopping executing the preset processing on the downlink signal.
13. A receiver comprising a processor, and a memory coupled to the processor, and program instructions stored on the memory, which when executed by the processor, implement a method of using secondary cell data according to any one of claims 1 to 11.
14. A computer readable storage medium having stored therein program instructions, which when executed by a processor, implement a method of using secondary cell data according to any of claims 1 to 11.
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| CN202010259886.7A CN111491325B (en) | 2020-04-03 | 2020-04-03 | Method and device for using secondary cell data, receiver and storage medium |
| PCT/CN2021/076950 WO2021196910A1 (en) | 2020-04-03 | 2021-02-19 | Method, device and receiver for using secondary cell data, and storage medium |
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| CN202010259886.7A CN111491325B (en) | 2020-04-03 | 2020-04-03 | Method and device for using secondary cell data, receiver and storage medium |
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| WO2021196910A1 (en) | 2021-10-07 |
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