CN110087253A - The judgment method and terminal of coverage enhancement grade - Google Patents
The judgment method and terminal of coverage enhancement grade Download PDFInfo
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- CN110087253A CN110087253A CN201810078415.9A CN201810078415A CN110087253A CN 110087253 A CN110087253 A CN 110087253A CN 201810078415 A CN201810078415 A CN 201810078415A CN 110087253 A CN110087253 A CN 110087253A
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- coverage enhancement
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- threshold
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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
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The present invention provides the judgment methods and terminal of a kind of coverage enhancement grade, belong to wireless technical field.Wherein, the judgment method of coverage enhancement grade is applied to terminal, comprising: the signal quality that the terminal is measured according to own demodulation ability and terminal judges coverage enhancement grade locating for terminal.Technical solution of the present invention can be avoided the problem that different terminals demodulation ability difference causes scheduling downlink resource inaccurate.
Description
Technical field
The present invention relates to wireless technical fields, particularly relate to the judgment method and terminal of a kind of coverage enhancement grade.
Background technique
The covering of current NB-IoT (Narrow Band Internet of Things is based on cellular narrowband Internet of Things)
The judgement for enhancing grade is based on reference signal strength and base station broadcast " RSRP-ThresholdsNPRACH-InfoList-
NB-r13 " threshold parameter is judged.When initial random access, terminal be according to the coverage enhancement hierarchical selection locating for itself with
Machine access parameter (such as number of repetition, frequency domain resource position, these information all issue in broadcast message), passes through NPRACH
Frequency domain position where (Narrow Band Physical Random Access Channel, narrowband Physical Random Access Channel)
It sets, base station obtains the coverage enhancement grade that UE is presently in.
Coverage enhancement grade of the base station based on the present position UE carries out uplink and downlink scheduling of resource.
According to existing 3GPP R13, the agreement TS36.331 of R14 version, for NB-IoT, at most settable two
RSRP (Reference Signal Receiving Power, Reference Signal Received Power) thresholding, i.e. three coverage enhancements etc.
Grade.For eMTC (application scenarios of Internet of Things), most settable three RSRP thresholdings, i.e. four coverage enhancement grades.
Existing scheme has the disadvantage in that (1) uplink and downlink coverage enhancement grade is bound, the coverage enhancement grade of user's instruction
True downlink signal quality can not be reacted.After accessing terminal to network, network increases according to the covering indicated in random access procedure
Strong grade carries out downlink resource configuration and scheduling, such as NPDCCH (Narrow Band Physical Downlink Control
Channel, narrowband Physical Downlink Control Channel) maximum number of repetitions.And coverage enhancement level threshold is according to downlink signal
What intensity divided, under network environment, network belongs to interference limiting system, and signal strength is closed with signal quality without directly corresponding
System；(2) base station exists according to the coverage enhancement grade indicated in user's random access procedure, dispatching downlink physical channel resources
The inaccurate problem of resource allocation, such as the number of repetition of distribution are excessive, cause time delay excessive, and distribution is very few, and covering performance can not
Guarantee.
Summary of the invention
The technical problem to be solved in the present invention is to provide the judgment methods and terminal of a kind of coverage enhancement grade, can be avoided
The problem that different terminals demodulation ability difference causes scheduling downlink resource inaccurate.
In order to solve the above technical problems, the embodiment of the present invention offer technical solution is as follows:
On the one hand, a kind of judgment method of coverage enhancement grade is provided, applied to the terminal of mobile communication technology field, packet
It includes:
The signal quality that the terminal is measured according to own demodulation ability and terminal, judges coverage enhancement locating for terminal etc.
Grade.
Further, the signal quality that the terminal is measured according to own demodulation ability and terminal, judges to cover locating for terminal
Before lid enhancing grade, the method also includes:
The terminal obtains the first coverage enhancement level threshold；
The signal quality that the terminal is measured according to own demodulation ability and terminal judges itself locating coverage enhancement grade
It specifically includes:
The terminal according to demodulation ability of itself down physical channel under the first coverage enhancement level threshold and
The signal quality of terminal measurement, determines coverage enhancement grade.
Further, the first coverage enhancement level threshold of the terminal acquisition includes:
The terminal receives the system broadcast message that network side equipment is sent, and carries first in the system broadcast message and covers
Lid enhancing level threshold list, including m-1 value R_0, R_1 ... R_m-2, be respectively coverage enhancement grade 1,2 ... m-1
The first coverage enhancement level threshold, wherein m be coverage enhancement grade number and m be not less than 2.
Further, the first coverage enhancement level threshold of the terminal acquisition includes:
The terminal and network side equipment the first coverage enhancement level threshold list of agreement, including m_max-1 value R_0,
R_1 ... R_m_max-2, be respectively coverage enhancement grade 1,2 ... the first coverage enhancement level threshold of m_max-1,
In, m_max is that maximal cover enhances number of levels, and m_max is not less than 2；Or
The terminal receives the system broadcast message that network side equipment is sent, and carries covering in the system broadcast message
Enhance number of levels m, m≤m_max, the first coverage enhancement level threshold, take R_0, R_1 ... the preceding m- of R_m_max-2
1 value；Or
The coverage enhancement number of levels m is equal to be covered according to what Physical Random Access Channel selection threshold information list determined
Lid enhancing number of levels, or be equal to uplink coverage enhancement number of levels, the first coverage enhancement level threshold list, take R_0,
R_1 ... the preceding m-1 value of R_m_max-2.
Further, the first coverage enhancement level threshold is the number of repetition of down physical channel.
Further, the down physical channel be Physical Downlink Control Channel or narrowband Physical Downlink Control Channel or
MTC Physical Downlink Control Channel or Physical Downlink Shared Channel or narrowband Physical Downlink Shared Channel；
The demodulation ability is that down physical channel block error rate BLER under the conditions of preset channel reaches letter required by N%
Road quality, N are the value less than 100；
The signal quality is reference signal and interference plus noise ratio SINR or reference signal and noise ratio SNR or reference
Signal receiving quality RSRQ.
Further, demodulation energy of the terminal according to down physical channel under the first coverage enhancement level threshold
The signal quality of power and terminal measurement, determines that coverage enhancement grade includes:
The terminal is based on simulation result or test assessment result, obtains down physical channel in number of repetition R_0, R_
1 ... the demodulation threshold of R_m-2 is Thresholds_0, Threshold_1 ... Threshold_m-2 respectively, and second covers
Lid enhancing level threshold list, including Thresholds_0, Threshold_1 ... Threshold_m-2 are that covering increases respectively
Strong grade 1,2 ... the second coverage enhancement level threshold of m-1；
The terminal is by the signal quality Q of measurement, with Thresholds_0, Threshold_1 ... Threshold_m-2
Compare, determines coverage enhancement grade locating for terminal.
Further, coverage enhancement grade locating for the determining terminal includes:
If the signal quality Q that terminal measures is less than the coverage enhancement in the second coverage enhancement level threshold list
The corresponding threshold value of grade N, and terminal supports coverage enhancement grade N, then it is assumed that and terminal is in coverage enhancement grade N.
Further, the signal quality that the terminal is measured according to own demodulation ability and terminal judges to cover locating for itself
After lid enhancing grade, the method also includes:
The terminal reports coverage enhancement grade locating for itself to network side equipment in MSG1 or MSG3.
Further, the method also includes:
The signal quality and down physical channel demodulation ability that the terminal is measured according to terminal, determine down physical channel
It is expected that number of repetition or minimum number of repetition；
The terminal reports down physical channel expectation number of repetition or minimum number of repetition to network side equipment.
Further, the signal quality and down physical channel demodulation ability that the terminal is measured according to terminal, under determining
Row physical channel expectation number of repetition or minimum number of repetition include:
The terminal obtains down physical channel m_max typical repetition according to simulation result or test assessment result
Number R_0, R_1 ... corresponding demodulation threshold Thresholds_0, Threshold_1 ... the Threshold_ of R_m_max-2
m_max-2；Down physical channel number of repetition list, including R_0, R_1 ... R_m_max-2；Second coverage enhancement grade door
Limit list, including Thresholds_0, Threshold_1 ... Threshold_m_max-2；
The signal quality of measurement is determined down physical channel compared with the second coverage enhancement level threshold by the terminal
Desired number of repetition or minimum number of repetition.
Further, the terminal determines down physical channel expectation number of repetition or minimum number of repetition includes:
If the signal quality Q that terminal measures is greater than number of repetition R in the second coverage enhancement level threshold list
Corresponding demodulation threshold value, and terminal supports number of repetition R, it is determined that the desired number of repetition of terminal or minimum repetition time
Number is R.
Further, the terminal reports down physical channel expectation number of repetition or minimum repetition to network side equipment
Number includes:
The terminal reports down physical channel expectation number of repetition or minimum to network side equipment in MSG1 or MSG3
Number of repetition.
Further, the down physical channel expectation number of repetition or minimum number of repetition are derived from default Candidate Set
It closes, the candidate collection is that network side equipment and terminal arrange in advance or be the network side equipment by under system broadcast message
Issue the terminal.
The embodiment of the invention also provides a kind of terminal, it is applied in mobile communication technology field, including processor and receipts
Device is sent out,
The processor is used for the signal quality measured according to terminal demodulation ability and terminal, judges that the locating covering of terminal increases
Strong grade.
Further, the processor is specifically used for obtaining the first coverage enhancement level threshold, according to user equipment downlink physics
The signal quality of demodulation ability and terminal measurement of the channel under the first coverage enhancement level threshold, determines and covers locating for terminal
Lid enhancing grade.
Further, the transceiver is used to receive the system broadcast message of network side equipment transmission, the system broadcasts
Carry the first coverage enhancement level threshold list in message, including m-1 first coverage enhancement level threshold R_0, R_1 ...
R_m-2, be respectively coverage enhancement grade 1,2 ... the first coverage enhancement level threshold of m-1, wherein m is coverage enhancement etc.
The number and m of grade are not less than 2.
Further, the transceiver is used to arrange the first coverage enhancement level threshold list with network side equipment, including
M_max-1 coverage enhancement level threshold R_0, R_1 ... R_m_max-2, be respectively coverage enhancement grade 1,2 ... m_
The first coverage enhancement level threshold of max-1, wherein m_max is that maximal cover enhances number of levels, and m_max is not less than 2；
Or
The transceiver is also used to receive the system broadcast message of network side equipment transmission, takes in the system broadcast message
With coverage enhancement number of levels m, m≤m_max, the first coverage enhancement level threshold, take R_0, R_1 ... R_m_
The preceding m-1 value of max-2；Or
The coverage enhancement number of levels m is equal to be covered according to what Physical Random Access Channel selection threshold information list determined
Lid enhancing number of levels, or be equal to uplink coverage enhancement number of levels, the first coverage enhancement level threshold list, take R_0,
R_1 ... the preceding m-1 value of R_m_max-2.
Further, the first coverage enhancement level threshold is the number of repetition of down physical channel.
Further, the down physical channel be Physical Downlink Control Channel or narrowband Physical Downlink Control Channel or
MTC Physical Downlink Control Channel or Physical Downlink Shared Channel or narrowband Physical Downlink Shared Channel；
The demodulation ability is that down physical channel block error rate BLER under the conditions of preset channel reaches letter required by N%
Road quality, N are the value less than 100；
The signal quality is reference signal and interference plus noise ratio SINR or reference signal and noise ratio SNR or reference
Signal receiving quality RSRQ.
Further, the processor is specifically used for obtaining downlink physical based on simulation result or test assessment result
Channel number of repetition R_0, R_1 ... the demodulation threshold of R_m-2 is Thresholds_0, Threshold_1 ... respectively
Threshold_m-2, the second coverage enhancement level threshold list, including Thresholds_0, Threshold_1 ...
Threshold_m-2, be respectively coverage enhancement grade 1,2 ... the second coverage enhancement level threshold of m-1；
The processor is used for the signal quality Q that will be measured, with Thresholds_0, Threshold_1 ...
Threshold_m-2 compares, and determines coverage enhancement grade locating for terminal.
Further, the processor is specifically used for judging coverage enhancement grade, if the signal quality Q that terminal measures
Less than the corresponding threshold value of coverage enhancement grade N in the second coverage enhancement level threshold list, and terminal support is covered
Lid enhancing grade N, then it is assumed that terminal is in coverage enhancement grade N.
Further, the transceiver is also used in MSG1 or MSG3 to report to network side equipment locating for itself cover and increase
Strong grade.
Further, the signal quality and down physical channel demodulation energy that the processor is also used to be measured according to terminal
Power determines down physical channel expectation number of repetition or minimum number of repetition；
The transceiver is also used to report down physical channel expectation number of repetition or minimum repetition to network side equipment
Number.
Further, the processor obtains down physical channel m_max according to simulation result or test assessment result
A typical case's number of repetition R_0, R_1 ... R_m_max-2 corresponding demodulation threshold Thresholds_0, Threshold_1 ...
Threshold_m_max-2；Down physical channel number of repetition list, including R_0, R_1 ... R_m_max-2；Second covering
Enhance level threshold list, including Thresholds_0, Threshold_1 ... Threshold_m_max-2；
The processor is also used to the signal quality that will be measured, and compared with the second coverage enhancement level threshold, determines downlink
The desired number of repetition of physical channel or minimum number of repetition.
Further, the terminal determines down physical channel expectation number of repetition or minimum number of repetition includes:
If the processor is specifically used for the signal quality Q that terminal measures and is greater than the second coverage enhancement grade door
The corresponding demodulation threshold value of number of repetition R in list is limited, and terminal supports number of repetition R, it is determined that terminal is desired heavy
Again several or minimum number of repetition is R.
Further, the transceiver is specifically used for reporting down physical channel to network side equipment in MSG1 or MSG3
It is expected that number of repetition or minimum number of repetition.
Further, the down physical channel expectation number of repetition or minimum number of repetition are derived from default Candidate Set
It closes, the candidate collection is that network side equipment and terminal arrange in advance or be the network side equipment by under system broadcast message
Issue the terminal.
The embodiment of the invention also provides a kind of terminal, including memory, processor and it is stored on the memory simultaneously
The computer program that can be run on the processor；The processor realizes that covering as described above increases when executing described program
The judgment method of strong grade.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
The step in the judgment method of coverage enhancement grade as described above is realized when sequence is executed by processor.
The embodiment of the present invention has the advantages that
In above scheme, the signal quality that terminal is measured according to the demodulation ability and terminal of itself down physical channel is sentenced
Break itself locating coverage enhancement grade, the coverage enhancement grade of such terminal instruction can actual response downlink signal quality, keep away
Exempt from the problem that different terminals demodulation ability difference causes scheduling downlink resource inaccurate.
Detailed description of the invention
Fig. 1 is the flow diagram of the judgment method of coverage enhancement of embodiment of the present invention grade；
Fig. 2 be the terminal of that embodiment of the invention according to the signal quality that terminal measures determine itself locating for coverage enhancement grade
Schematic diagram；
Fig. 3 is the structural schematic diagram of the terminal of that embodiment of the invention.
Specific embodiment
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
The embodiment of the present invention provides the judgment method and terminal of a kind of coverage enhancement grade, can be avoided different terminals solution
The problem that tune ability difference causes scheduling downlink resource inaccurate.
The embodiment of the present invention provides a kind of judgment method of coverage enhancement grade, applied to mobile communication technology field
Terminal, as shown in Figure 1, comprising:
Step 101: the signal quality that the terminal is measured according to own demodulation ability and terminal judges itself locating covering
Enhance grade.
In the present embodiment, the signal quality that terminal is measured according to own demodulation ability and terminal judges itself locating covering
Enhance grade, the coverage enhancement grade of such terminal instruction can actual response downlink signal quality, avoid different terminals from demodulating
The problem that ability difference causes scheduling downlink resource inaccurate.
Further, the signal quality that the terminal is measured according to own demodulation ability and terminal judges to cover locating for itself
Before lid enhancing grade, the method also includes:
The terminal obtains the first coverage enhancement level threshold；
The signal quality that the terminal is measured according to own demodulation ability and terminal judges itself locating coverage enhancement grade
It specifically includes:
The terminal according to demodulation ability of itself down physical channel under the first coverage enhancement level threshold and
The signal quality of terminal measurement, determines coverage enhancement grade locating for terminal.
Further, the first coverage enhancement level threshold of the terminal acquisition includes:
The terminal receives the system broadcast message that network side equipment is sent, and carries first in the system broadcast message and covers
Lid enhancing level threshold list, including m-1 value R_0, R_1 ... R_m-2, be respectively coverage enhancement grade 1,2 ... m-1
The first coverage enhancement level threshold, wherein m be coverage enhancement grade number and m be not less than 2.
Further, the first coverage enhancement level threshold of the terminal acquisition includes:
The terminal and network side equipment the first coverage enhancement level threshold list of agreement, including m_max-1 value R_0,
R_1 ... R_m_max-2, be respectively coverage enhancement grade 1,2 ... the first coverage enhancement level threshold of m_max-1,
In, m_max is that maximal cover enhances number of levels, and m_max is not less than 2；Or
The terminal receives the system broadcast message that network side equipment is sent, and carries covering in the system broadcast message
Enhance number of levels m, m≤m_max, the first coverage enhancement level threshold, take R_0, R_1 ... the preceding m- of R_m_max-2
1 value；Or
The coverage enhancement number of levels m is equal to be covered according to what Physical Random Access Channel selection threshold information list determined
Lid enhancing number of levels, or be equal to uplink coverage enhancement number of levels, the first coverage enhancement level threshold list, take R_0,
R_1 ... the preceding m-1 value of R_m_max-2.
Further, the first coverage enhancement level threshold is the number of repetition of down physical channel.
Further, the down physical channel be Physical Downlink Control Channel or narrowband Physical Downlink Control Channel or
MTC Physical Downlink Control Channel or Physical Downlink Shared Channel or narrowband Physical Downlink Shared Channel；
The demodulation ability is that down physical channel block error rate BLER under the conditions of preset channel reaches letter required by N%
Road quality, N are the value less than 100；
The signal quality is reference signal and interference plus noise ratio SINR or reference signal and noise ratio SNR or reference
Signal receiving quality RSRQ.
Further, solution of the terminal according to itself down physical channel under the first coverage enhancement level threshold
The signal quality of tune ability and terminal measurement, determines that coverage enhancement grade locating for terminal includes:
The terminal is based on simulation result or test assessment result, obtains down physical channel in number of repetition R_0, R_
1 ... the demodulation threshold of R_m-2 is Thresholds_0, Threshold_1 ... Threshold_m-2 respectively, and second covers
Lid enhancing level threshold list, including Thresholds_0, Threshold_1 ... Threshold_m-2 are that covering increases respectively
Strong grade 1,2 ... the second coverage enhancement level threshold of m-1；
The terminal is by the signal quality Q of measurement, with Thresholds_0, Threshold_1 ... Threshold_m-2
Compare, determines coverage enhancement grade locating for terminal.
Further, coverage enhancement grade locating for the determining terminal includes:
If the signal quality Q that terminal measures is less than the coverage enhancement in the second coverage enhancement level threshold list
The corresponding threshold value of grade N, and terminal supports coverage enhancement grade N, then it is assumed that and terminal is in coverage enhancement grade N.
Further, the signal quality that the terminal is measured according to own demodulation ability and terminal judges to cover locating for itself
After lid enhancing grade, the method also includes:
The terminal reports coverage enhancement grade locating for itself to network side equipment in MSG1 or MSG3.
Further, the method also includes:
The signal quality and down physical channel demodulation ability that the terminal is measured according to terminal, determine down physical channel
It is expected that number of repetition or minimum number of repetition；
The terminal reports down physical channel expectation number of repetition or minimum number of repetition to network side equipment.
Further, the signal quality and down physical channel demodulation ability that the terminal is measured according to terminal, under determining
Row physical channel expectation number of repetition or minimum number of repetition include:
The terminal obtains down physical channel m_max typical repetition according to simulation result or test assessment result
Number R_0, R_1 ... corresponding demodulation threshold Thresholds_0, Threshold_1 ... the Threshold_ of R_m_max-2
m_max-2；Down physical channel number of repetition list, including R_0, R_1 ... R_m_max-2；Second coverage enhancement grade door
Limit list, including Thresholds_0, Threshold_1 ... Threshold_m_max-2；
The signal quality of measurement is determined down physical channel compared with the second coverage enhancement level threshold by the terminal
Desired number of repetition or minimum number of repetition.
The terminal determines down physical channel expectation number of repetition or minimum number of repetition includes:
If the signal quality Q that terminal measures is greater than number of repetition R in the second coverage enhancement level threshold list
Corresponding demodulation threshold value, and terminal supports number of repetition R, it is determined that the desired number of repetition of terminal or minimum repetition time
Number is R.
Further, the terminal reports down physical channel expectation number of repetition or minimum repetition to network side equipment
Number includes:
The terminal reports down physical channel expectation number of repetition or minimum to network side equipment in MSG1 or MSG3
Number of repetition.
Further, the down physical channel expectation number of repetition or minimum number of repetition are derived from default Candidate Set
It closes, the candidate collection is that network side equipment and terminal arrange in advance or be the network side equipment by under system broadcast message
Issue the terminal.
Technical solution of the present invention propose it is a kind of using number of repetition setting coverage enhancement level threshold method, terminal according to
According to demodulation ability and channel condition of itself down physical channel under the number of repetition, coverage enhancement locating for terminal etc. is determined
Grade, and coverage enhancement class information is reported to network.
Wherein, the setting method of coverage enhancement level threshold (i.e. number of repetition) is as follows
A. network settings: network side equipment sends m-1 (m >=2) a number of repetition, R_0, R_ in system broadcast message
1 ... R_m-2, respectively correspond coverage enhancement grade 0 and 1,1 and 2 ... the division thresholding of (m-2) and m-1.Wherein m is to cover
Lid enhancing number of levels, if only 1 coverage enhancement grade, m=1, then without broadcasting coverage enhancement level threshold.It is optional
, m (coverage enhancement number of levels) is sent in system broadcast message.
B. network and terminal agreement setting: network side equipment and terminal arrange the repetition time of each coverage enhancement level threshold
Number, R_0, R_1 ... R_m_max-2, respectively correspond coverage enhancement grade 0 and 1,1 and 2 ... (m_max-2) and m_max-1
Division thresholding.Wherein m_max (m_max >=2) is that maximal cover enhances number of levels.M is that the covering that current area defines increases
Strong grade number, m≤m_max, if only 1 coverage enhancement grade, m=1, then without dividing coverage enhancement grade.M's obtains
Take mode as follows:
Mode 1: network side equipment broadcasts coverage enhancement number of levels m in system message.Take R_0, R_1 ... R_m_
The preceding m-1 value of max-2 is used as m coverage enhancement level threshold (number of repetition).
Mode 2:m is equal to uplink coverage enhancement number of levels, increases equal to the covering divided according to cell reference signals intensity
Strong grade number is equal to uplink coverage enhancement number of levels, the i.e. list length of PRACH-ParametersListCE-r13.
The corresponding coverage enhancement thresholding of the coverage enhancement number of levels m, take R_0, R_1 ... the preceding m-1 value of R_m_max-2 is made
For m coverage enhancement level threshold (number of repetition).
If it is network settings coverage enhancement level threshold, terminal judges that coverage enhancement hierarchical manner is as follows: terminal is read
System broadcast message, acquisition coverage enhancement level threshold (number of repetition) R_0, R_1 ... R_m-2；Terminal is based on simulation result
Or test assessment result, obtain down physical channel (such as NPDCCH polymerization grade 2) number of repetition R_0, R_1 ...
The demodulation threshold of R_m-2, respectively Thresholds_0, Threshold_1 ... Threshold_m-2.Demodulation threshold is root
It is obtained according to terminal emulation or test, under difficult channel conditions difference, such as EPA (Extended Pedestrian
A extends pedestrian channel), the solution under ETU (Extended Typical Urban, extend typical urban channel) channel condition
Pitch limit is different.Terminal measures signal quality Q, as shown in Fig. 2, with Thresholds_0, Threshold_1 ...
Threshold_m-2 compares, and sees which section current signal quality Q falls into, and obtains corresponding coverage enhancement grade.
If it is network and terminal agreement setting coverage enhancement level threshold, terminal judges coverage enhancement hierarchical manner such as
Under: terminal is based on simulation result or test assessment result, obtains down physical channel (such as NPDCCH polymerization grade 2) in weight
Again count R_0, R_1 ... the demodulation threshold of R_m-2, respectively Thresholds_0, Threshold_1 ...
Threshold_m-2.Demodulation threshold is obtained according to terminal emulation or test, under difficult channel conditions difference, example
As the demodulation threshold under EPA, ETU channel condition is different.Terminal measuring signal quality Q, as shown in Fig. 2, with Thresholds_0,
Threshold_1 ... Threshold_m-2 compares, and sees which section current signal quality Q falls into, and obtains covering increasing accordingly
Strong grade.
Wherein, the method that terminal reports coverage enhancement class information to network is taken in MSG1 with code point or frequency division manner
Band, or carried in MSG3.
Down physical channel described in the present embodiment can be NPDCCH；Demodulation threshold can be NPDCCH (polymerization grade
2) bit error rate is SINR (Signal to Interference plus required by 1% or 10% under specific number of repetition
Noise Ratio, Signal to Interference plus Noise Ratio).
In one specific embodiment, the judgment method of coverage enhancement grade of the invention the following steps are included:
1, Web broadcast downlink coverage enhancement number of levels m=3, and R_0=1, R_1=16 are broadcasted, as coverage enhancement
Level threshold.Alternatively, not broadcasting any value, network and terminal arrange coverage enhancement level threshold R_0=1, R_1=16, in this way
One shares 3 coverage enhancement grades；
2, terminal obtains the transmission of NPDCCH (polymerization grade 2) channel 1 time and (does not weigh according to simulation result or test result
Again), NPDCCH channel sends 16 times (being repeated 15 times) corresponding demodulation thresholds；
NPDCCH is sent 1 time, the corresponding demodulation threshold Thresholds_0 of BLER 1%；
NPDCCH is sent 16 times, the corresponding demodulation threshold Thresholds_1 of BLER 1%；
Second coverage enhancement level threshold list, including Thresholds_0, Thresholds_1, are coverage enhancement respectively
The coverage enhancement level threshold of grade 1,2.
3, terminal measuring signal quality SINR judges the relationship of SINR and the second coverage enhancement level threshold, is covered
Enhance class information N；
If SINR is less than Thresholds_1 (the second coverage enhancement level threshold of coverage enhancement grade 2), and terminal
Support coverage enhancement grade 2, then coverage enhancement grade is judged as 2；
Otherwise, if SINR is less than Thresholds_0 (the second coverage enhancement level threshold of coverage enhancement grade 1), and
Terminal supports coverage enhancement grade 1, then coverage enhancement grade is judged as 1；
Otherwise, coverage enhancement grade is judged as 0.
4, terminal reports coverage enhancement class information M to network side in MSG1 or MSG3.
Further, the present invention also proposes that a kind of signal quality that terminal is measured according to terminal and down physical channel demodulate
Ability, judge down physical channel expectation number of repetition or minimum number of repetition requirement, and to network report expectation or most
The technical solution that low number of repetition requires.
Wherein, terminal judges the mode packet that down physical channel expectation number of repetition or minimum number of repetition require
It includes:
A. terminal obtains the solution pitch under down physical channel typical case's number of repetition according to simulation result or test result
Limit；
B. terminal measuring signal quality, and compared with the demodulation threshold under down physical channel typical case's number of repetition, it determines
Which section the signal quality of terminal measurement falls into, and takes corresponding number of repetition upwards.
Terminal can report number of repetition to network side in MSG1 or MSG3.
Wherein, the number of repetition that typical number of repetition or terminal report selects, Candidate Set from specific candidate collection
It closes and is issued in system broadcast message in network and terminal side agreement or network.Such as following manner
npdcch-NumRepetitions-r13ENUMERATED{r1,r2,r4,r8,r16,r32,r64,r128,
r256,r512,r1024,r2048,spare4,spare3,spare2,spare1},
In one specific embodiment, the signal quality and down physical channel demodulation ability that terminal is measured according to terminal are determined
Down physical channel it is expected number of repetition or minimum number of repetition, and reports down physical channel expectation weight to network side equipment
Again several or minimum number of repetition the following steps are included:
1, terminal obtains the typical down physical channel weight of NPDCCH (polymerization grade 2) according to simulation result or test result
Again corresponding demodulation threshold is counted, typical number of repetition: 1,2,4,8,16,32,128 etc., the corresponding demodulation threshold of the terminal, example
As Thresholds_0, Thresholds_1, Thresholds_2, Thresholds_3, Thresholds_4,
Thresholds_5, Thresholds_6 etc..
2, terminal measuring signal quality SINR judges the relationship of SINR demodulation threshold corresponding from different numbers of repetition.
If SINR is greater than Thresholds_0 (demodulation threshold of number of repetition 1), it is expected that number of repetition or minimum heavy
It is again 1；
Otherwise, if SINR is greater than Thresholds_1 (demodulation threshold of number of repetition 2), and terminal supports number of repetition
2, then it is expected to repeat or minimum number of repetition is 2；
Otherwise, if SINR is greater than Thresholds_2 (demodulation threshold of number of repetition 4), and terminal supports number of repetition
4, then it is expected to repeat or minimum number of repetition is 4；
Otherwise, if SINR is greater than Thresholds_3 (demodulation threshold of number of repetition 8), and terminal supports number of repetition
8, then it is expected to repeat or minimum number of repetition is 8；
Otherwise, if SINR is greater than Thresholds_4 (demodulation threshold of number of repetition 16), and terminal supports repetition time
Number 16 then it is expected to repeat or minimum number of repetition is 16；
Otherwise, if SINR is greater than Thresholds_5 (demodulation threshold of number of repetition 32), and terminal supports repetition time
Number 32 then it is expected to repeat or minimum number of repetition is 32；
Otherwise, if SINR is greater than Thresholds_6 (demodulation threshold of number of repetition 128), and terminal supports repetition time
Number 128 then it is expected to repeat or minimum number of repetition is 128；
Otherwise, it is expected that repetition or minimum number of repetition are some maximum number of repetitions of agreement.
3, terminal reports number of repetition 4 in MSG1 or MSG3, specifically, the instruction bit of candidate collection can be reported to believe
Breath.
The embodiment of the invention also provides a kind of terminals, are applied in mobile communication technology field, as shown in figure 3, including
Processor 21 and transceiver 22,
The processor 21 is used for the signal quality measured according to terminal demodulation ability and terminal, judges the locating covering of terminal
Enhance grade.
In the present embodiment, the signal quality that terminal is measured according to own demodulation ability and terminal judges itself locating covering
Enhance grade, the coverage enhancement grade of such terminal instruction can actual response downlink signal quality, avoid different terminals from demodulating
The problem that ability difference causes scheduling downlink resource inaccurate.
Further, the processor 21 is specifically used for obtaining the first coverage enhancement level threshold, according to user equipment downlink object
The signal quality for managing demodulation ability and terminal measurement of the channel under the first coverage enhancement level threshold, determines locating for terminal
Coverage enhancement grade.
Further, the transceiver 22 is used to receive the system broadcast message of network side equipment transmission, and the system is wide
It broadcasts and carries the first coverage enhancement level threshold list in message, including m-1 first coverage enhancement level threshold R_0, R_
1 ... R_m-2, be respectively coverage enhancement grade 1,2 ... the first coverage enhancement level threshold of m-1, wherein m is covering
Enhance the number of grade and m is not less than 2.
Further, the transceiver 22 is used to arrange the first coverage enhancement level threshold list, packet with network side equipment
Include m_max-1 coverage enhancement level threshold R_0, R_1 ... R_m_max-2, be respectively coverage enhancement grade 1,2 ... m_
The first coverage enhancement level threshold of max-1, wherein m_max is that maximal cover enhances number of levels, and m_max is not less than 2；
Or
The transceiver 22 is also used to receive the system broadcast message of network side equipment transmission, in the system broadcast message
Carry coverage enhancement number of levels m, m≤m_max, the first coverage enhancement level threshold, take R_0, R_1 ... R_m_
The preceding m-1 value of max-2；Or the coverage enhancement number of levels m is equal to according to Physical Random Access Channel selection threshold information
The coverage enhancement number of levels that list determines, or it is equal to uplink coverage enhancement number of levels, the first coverage enhancement grade door
Limit list, take R_0, R_1 ... the preceding m-1 value of R_m_max-2.
Further, the first coverage enhancement level threshold is the number of repetition of down physical channel.
Further, the down physical channel be Physical Downlink Control Channel or narrowband Physical Downlink Control Channel or
MTC Physical Downlink Control Channel or Physical Downlink Shared Channel or narrowband Physical Downlink Shared Channel；
The demodulation ability is that down physical channel block error rate BLER under the conditions of preset channel reaches letter required by N%
Road quality, N are the value less than 100；
The signal quality is reference signal and interference plus noise ratio SINR or reference signal and noise ratio SNR or reference
Signal receiving quality RSRQ.
Further, the processor 21 is specifically used for obtaining downlink object based on simulation result or test assessment result
Manage channel number of repetition R_0, R_1 ... the demodulation threshold of R_m-2 is Thresholds_0, Threshold_ respectively
1 ... Threshold_m-2, the second coverage enhancement level threshold list, including Thresholds_0, Threshold_1 ...
Threshold_m-2, be respectively coverage enhancement grade 1,2 ... the second coverage enhancement level threshold of m-1；
The processor 21 is also used to the signal quality Q that will be measured, with Thresholds_0, Threshold_1 ...
Threshold_m-2 compares, and determines coverage enhancement grade locating for terminal.
Further, the processor 21 is specifically used for judging coverage enhancement grade, if the signal matter that terminal measures
The corresponding threshold value of coverage enhancement grade N that Q is less than in the second coverage enhancement level threshold list is measured, and terminal is supported
Coverage enhancement grade N, then it is assumed that terminal is in coverage enhancement grade N.
Further, the transceiver 22 is also used in MSG1 or MSG3 to report covering locating for itself to network side equipment
Enhance grade.
Further, the signal quality and down physical channel demodulation energy that the processor 21 is also used to be measured according to terminal
Power determines down physical channel expectation number of repetition or minimum number of repetition；
The transceiver 22 is also used to report down physical channel expectation number of repetition or minimum weight to network side equipment
Again it counts.
Further, the processor 21 is specifically used for obtaining downlink physical according to simulation result or test assessment result
Channel m_max typical number of repetition R_0, R_1 ... the corresponding demodulation threshold Thresholds_0 of R_m_max-2,
Threshold_1……Threshold_m_max-2；Down physical channel number of repetition list, including R_0, R_1 ... R_
m_max-2；Second coverage enhancement level threshold list, including Thresholds_0, Threshold_1 ... Threshold_m_
max-2；
The signal quality that the processor 21 is also used to measure, compared with the second coverage enhancement level threshold, under determining
The desired number of repetition of row physical channel or minimum number of repetition.
If the processor 21 is specifically used for the signal quality Q that terminal measures and is greater than the second coverage enhancement grade
The corresponding demodulation threshold value of number of repetition R in thresholding list, and terminal supports number of repetition R, it is determined that and terminal is desired
Number of repetition or minimum number of repetition are R.
Further, the transceiver 22 is specifically used for reporting downlink physical to believe to network side equipment in MSG1 or MSG3
It is expected number of repetition or minimum number of repetition in road.
Further, the down physical channel expectation number of repetition or minimum number of repetition are derived from default Candidate Set
It closes, the candidate collection is that network side equipment and terminal arrange in advance or be the network side equipment by under system broadcast message
Issue the terminal.
The embodiment of the invention also provides a kind of terminal, including memory, processor and it is stored on the memory simultaneously
The computer program that can be run on the processor；The processor realizes that covering as described above increases when executing described program
The judgment method of strong grade.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
The step in the judgment method of coverage enhancement grade as described above is realized when sequence is executed by processor.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (30)
1. a kind of judgment method of coverage enhancement grade, the terminal applied to mobile communication technology field, which is characterized in that packet
It includes:
The signal quality that the terminal is measured according to own demodulation ability and terminal, judges coverage enhancement grade locating for terminal.
2. the judgment method of coverage enhancement grade according to claim 1, which is characterized in that the terminal is solved according to itself
The signal quality of tune ability and terminal measurement, before judging coverage enhancement grade locating for terminal, the method also includes:
The terminal obtains the first coverage enhancement level threshold；
The signal quality that the terminal is measured according to own demodulation ability and terminal judges that itself locating coverage enhancement grade is specific
Include:
Demodulation ability and terminal of the terminal according to itself down physical channel under the first coverage enhancement level threshold
The signal quality of measurement determines coverage enhancement grade.
3. the judgment method of coverage enhancement grade according to claim 2, which is characterized in that the terminal obtains first and covers
Lid enhances level threshold
The terminal receives the system broadcast message that network side equipment is sent, and the first covering is carried in the system broadcast message and is increased
Strong grade thresholding list, including m-1 value R_0, R_1 ... R_m-2, be respectively coverage enhancement grade 1,2 ... the of m-1
One coverage enhancement level threshold, wherein m is the number of coverage enhancement grade and m is not less than 2.
4. the judgment method of coverage enhancement grade according to claim 2, which is characterized in that the terminal obtains first and covers
Lid enhances level threshold
The terminal and network side equipment arrange the first coverage enhancement level threshold list, including m_max-1 value R_0, R_
1 ... R_m_max-2, be respectively coverage enhancement grade 1,2 ... the first coverage enhancement level threshold of m_max-1, wherein
M_max is that maximal cover enhances number of levels, and m_max is not less than 2；Or
The terminal receives the system broadcast message that network side equipment is sent, and carries coverage enhancement in the system broadcast message
Number of levels m, m≤m_max, the first coverage enhancement level threshold, take R_0, R_1 ... the preceding m-1 of R_m_max-2
Value；Or
The coverage enhancement number of levels m is equal to be increased according to the covering that Physical Random Access Channel selection threshold information list determines
Strong grade number, or it is equal to uplink coverage enhancement number of levels, the first coverage enhancement level threshold list takes R_0, R_
1 ... the preceding m-1 value of R_m_max-2.
5. the judgment method of coverage enhancement grade according to claim 3 or 4, which is characterized in that first covering increases
Strong grade thresholding is the number of repetition of down physical channel.
6. the judgment method of coverage enhancement grade according to claim 2, which is characterized in that
The down physical channel is Physical Downlink Control Channel or narrowband Physical Downlink Control Channel or MTC physical down control
Channel or Physical Downlink Shared Channel or narrowband Physical Downlink Shared Channel processed；
The demodulation ability is that down physical channel block error rate BLER under the conditions of preset channel reaches channel matter required by N%
Amount, N are the value less than 100；
The signal quality is reference signal and interference plus noise ratio SINR or reference signal and noise ratio SNR or reference signal
Quality of reception RSRQ.
7. the judgment method of coverage enhancement grade according to claim 3 or 4, which is characterized in that the terminal is under
The signal quality of demodulation ability and terminal measurement of the row physical channel under the first coverage enhancement level threshold, determines covering
Enhancing grade includes:
The terminal is based on simulation result or test assessment result, obtains down physical channel in number of repetition R_0, R_
1 ... the demodulation threshold of R_m-2 is Thresholds_0, Threshold_1 ... Threshold_m-2 respectively, and second covers
Lid enhancing level threshold list includes Thresholds_0, Threshold_1 ... Threshold_m-2, is that covering increases respectively
Strong grade 1,2 ... the second coverage enhancement level threshold of m-1；
The terminal is by the signal quality Q of measurement, with Thresholds_0, Threshold_1 ... Threshold_m-2 ratio
Compared with determining coverage enhancement grade locating for terminal.
8. the judgment method of coverage enhancement grade according to claim 7, which is characterized in that covered locating for the determining terminal
Lid enhances grade
If the signal quality Q that terminal measures is less than the coverage enhancement grade in the second coverage enhancement level threshold list
The corresponding threshold value of N, and terminal supports coverage enhancement grade N, then it is assumed that and terminal is in coverage enhancement grade N.
9. the judgment method of coverage enhancement grade according to claim 1, which is characterized in that the terminal is solved according to itself
The signal quality of tune ability and terminal measurement, after judging itself locating coverage enhancement grade, the method also includes:
The terminal reports coverage enhancement grade locating for itself to network side equipment in MSG1 or MSG3.
10. the judgment method of coverage enhancement grade according to claim 7, which is characterized in that the method also includes:
The signal quality and down physical channel demodulation ability that the terminal is measured according to terminal determine that down physical channel it is expected
Number of repetition or minimum number of repetition；
The terminal reports down physical channel expectation number of repetition or minimum number of repetition to network side equipment.
11. the judgment method of coverage enhancement grade according to claim 10, which is characterized in that the terminal is according to terminal
The signal quality and down physical channel demodulation ability of measurement determine down physical channel expectation number of repetition or minimum repetition
Number includes:
The terminal obtains down physical channel m_max typical number of repetition according to simulation result or test assessment result
R_0, R_1 ... corresponding demodulation threshold Thresholds_0, Threshold_1 ... the Threshold_m_ of R_m_max-2
max-2；Down physical channel number of repetition list, including R_0, R_1 ... R_m_max-2；Second coverage enhancement level threshold
List, including Thresholds_0, Threshold_1 ... Threshold_m_max-2；
The terminal is by the signal quality of measurement, compared with the second coverage enhancement level threshold, determines that down physical channel it is expected
Number of repetition or minimum number of repetition.
12. the judgment method of coverage enhancement grade according to claim 11, which is characterized in that the terminal determines downlink
Physical channel expectation number of repetition or minimum number of repetition include:
If it is corresponding that the signal quality Q that terminal measures is greater than number of repetition R in the second coverage enhancement level threshold list
Demodulation threshold value, and terminal support number of repetition R, it is determined that the desired number of repetition of terminal or minimum number of repetition are
R。
13. the judgment method of coverage enhancement grade according to claim 10, which is characterized in that the terminal is to network side
Equipment reports down physical channel expectation number of repetition or minimum number of repetition includes:
The terminal reports down physical channel expectation number of repetition or minimum weight to network side equipment in MSG1 or MSG3
Again it counts.
14. the judgment method of coverage enhancement grade according to claim 10, which is characterized in that
The down physical channel expectation number of repetition or minimum number of repetition are derived from default candidate collection, the candidate collection
Arrange in advance for network side equipment and terminal or is that the network side equipment by system broadcast message is handed down to the terminal.
15. a kind of terminal, it is applied in mobile communication technology field, which is characterized in that including processor and transceiver,
The processor is used for the signal quality measured according to terminal demodulation ability and terminal, judges coverage enhancement locating for terminal etc.
Grade.
16. terminal according to claim 15, which is characterized in that
The processor is specifically used for obtaining the first coverage enhancement level threshold, according to user equipment downlink physical channel described first
The signal quality of demodulation ability and terminal measurement under coverage enhancement level threshold, determines coverage enhancement grade locating for terminal.
17. terminal according to claim 16, which is characterized in that
The transceiver is used to receive the system broadcast message of network side equipment transmission, carries first in the system broadcast message
Coverage enhancement level threshold list, including m-1 first coverage enhancement level threshold R_0, R_1 ... R_m-2 covers respectively
Lid enhancing grade 1,2 ... the first coverage enhancement level threshold of m-1, wherein m is the number of coverage enhancement grade and m is not small
In 2.
18. terminal according to claim 16, which is characterized in that
The transceiver is used to arrange with network side equipment the first coverage enhancement level threshold list, including m_max-1 covering
Enhance level threshold R_0, R_1 ... R_m_max-2, be respectively coverage enhancement grade 1,2 ... the first covering of m_max-1
Enhance level threshold, wherein m_max is that maximal cover enhances number of levels, and m_max is not less than 2；Or
The transceiver is also used to receive the system broadcast message of network side equipment transmission, carries in the system broadcast message
Coverage enhancement number of levels m, m≤m_max, the first coverage enhancement level threshold, take R_0, R_1 ... R_m_max-2's
Preceding m-1 value；Or
The coverage enhancement number of levels m is equal to be increased according to the covering that Physical Random Access Channel selection threshold information list determines
Strong grade number, or it is equal to uplink coverage enhancement number of levels, the first coverage enhancement level threshold list takes R_0, R_
1 ... the preceding m-1 value of R_m_max-2.
19. terminal described in 7 or 18 according to claim 1, which is characterized in that the first coverage enhancement level threshold is downlink
The number of repetition of physical channel.
20. terminal according to claim 16, which is characterized in that
The down physical channel is Physical Downlink Control Channel or narrowband Physical Downlink Control Channel or MTC physical down control
Channel or Physical Downlink Shared Channel or narrowband Physical Downlink Shared Channel processed；
The demodulation ability is that down physical channel block error rate BLER under the conditions of preset channel reaches channel matter required by N%
Amount, N are the value less than 100；
The signal quality is reference signal and interference plus noise ratio SINR or reference signal and noise ratio SNR or reference signal
Quality of reception RSRQ.
21. terminal described in 7 or 18 according to claim 1, which is characterized in that
The processor is specifically used for obtaining down physical channel in number of repetition based on simulation result or test assessment result
R_0, R_1 ... the demodulation threshold of R_m-2 is Thresholds_0, Threshold_1 ... Threshold_m-2 respectively,
Second coverage enhancement level threshold list includes Thresholds_0, Threshold_1 ... Threshold_m-2, is respectively
Coverage enhancement grade 1,2 ... the second coverage enhancement level threshold of m-1；
The processor is used for the signal quality Q that will be measured, with Thresholds_0, Threshold_1 ... Threshold_
M-2 compares, and determines coverage enhancement grade locating for terminal.
22. terminal according to claim 21, which is characterized in that
The processor is specifically used for judging coverage enhancement grade, if the signal quality Q that terminal measures is less than described second
The corresponding threshold value of coverage enhancement grade N in coverage enhancement level threshold list, and terminal supports coverage enhancement grade N,
Then think that terminal is in coverage enhancement grade N.
23. terminal according to claim 15, which is characterized in that
The transceiver is also used in MSG1 or MSG3 to report coverage enhancement grade locating for itself to network side equipment.
24. terminal according to claim 21, which is characterized in that
The signal quality and down physical channel demodulation ability that the processor is also used to be measured according to terminal, determine downlink physical
Channel it is expected number of repetition or minimum number of repetition；
The transceiver is also used to report down physical channel expectation number of repetition or minimum number of repetition to network side equipment.
25. terminal according to claim 24, which is characterized in that
The processor obtains down physical channel m_max typical repetition time according to simulation result or test assessment result
Number R_0, R_1 ... corresponding demodulation threshold Thresholds_0, Threshold_1 ... the Threshold_m_ of R_m_max-2
max-2；Down physical channel number of repetition list, including R_0, R_1 ... R_m_max-2；Second coverage enhancement level threshold
List, including Thresholds_0, Threshold_1 ... Threshold_m_max-2；
The processor is also used to the signal quality that will be measured, and compared with the second coverage enhancement level threshold, determines downlink physical
The desired number of repetition of channel or minimum number of repetition.
26. terminal according to claim 25, which is characterized in that it is secondary that the terminal determines that down physical channel expectation repeats
Several or minimum numbers of repetition include:
It is arranged if the processor is specifically used for the signal quality Q that terminal measures greater than the second coverage enhancement level threshold
The corresponding demodulation threshold value of number of repetition R in table, and terminal supports number of repetition R, it is determined that terminal desired repetition time
Several or minimum numbers of repetition is R.
27. terminal according to claim 24, which is characterized in that
The transceiver is specifically used for reporting down physical channel it is expected number of repetition to network side equipment in MSG1 or MSG3
Or minimum number of repetition.
28. terminal according to claim 24, which is characterized in that
The down physical channel expectation number of repetition or minimum number of repetition are derived from default candidate collection, the candidate collection
Arrange in advance for network side equipment and terminal or is that the network side equipment by system broadcast message is handed down to the terminal.
29. a kind of terminal, including memory, processor and it is stored on the memory and can runs on the processor
Computer program；It is characterized in that, the processor is realized when executing described program as claim 1-14 is described in any item
The judgment method of coverage enhancement grade.
30. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step in the judgment method such as the described in any item coverage enhancement grades of claim 1-14 is realized when execution.
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