CN106304171A - Method and apparatus for the channel quality measurement of MTC UE - Google Patents
Method and apparatus for the channel quality measurement of MTC UE Download PDFInfo
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- CN106304171A CN106304171A CN201510250757.0A CN201510250757A CN106304171A CN 106304171 A CN106304171 A CN 106304171A CN 201510250757 A CN201510250757 A CN 201510250757A CN 106304171 A CN106304171 A CN 106304171A
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
Abstract
The method and apparatus that the invention provides a kind of channel quality measurement for MTC UE.Wherein, the method performed at MTC UE includes: the subband obtaining the multiple subbands about described MTC UE channel quality measurement to be carried out measures the information of sequence；In the measurement cycle, measure sequence according to described subband and perform the channel quality measurement of the plurality of subband.
Description
Technical field
The present invention generally relates to wireless communication field, more specifically, relates to MTC
The method and apparatus of the channel quality measurement of UE.
Background technology
Machine type communication (Machine Type Communication, MTC) subscriber equipment
(UE) it is a kind of UE special by machine.A pass is had finished in 3GPP R12
In the job of low complex degree MTC (Low Complexity MTC, LC-MTC) UE,
Wherein the complexity (cost) of MTC UE is lowered by about 50%.In R13, separately
One job is further intended to reduce the complexity of MTC UE, to strengthen MTC UE
Covering and reduce power consumption.The technology that a kind of complexity reduces is by low complex degree MTC UE
Radio frequency bandwidth be reduced to 1.4MHz (that is, operation in 6 Physical Resource Block (PRB),
Resource allocation unit during wherein PRB is frequency domain).Wish that LC-MTC UE is operable to
Any system bandwidth and can with tradition UE coexist.Also wanting to LC-MTC UE can
By its frequency tuning to operation difference (such as 1.4MHz) in (bigger) system bandwidth
Enable in subband between LC-MTC UE and in LC-MTC UE and tradition
Channeling is carried out between UE.
It is appreciated that depending on the scheduling of frequency channels can bring huge gain, and because of
This is during the discussion of 3GPP RAN1 meeting, and most companies support to enter with normal covering pattern
Row channel condition information (CSI) report.But, LC-MTC UE can only measure 6 PRB
Wide arrowband, and after one-shot measurement completes, need at most one subframe to be switched to
Need on another subband of measurement.Therefore measuring process should be very different with common UE.
Here, channel quality information (CQI) reporting process of common UE can be briefly described as follows:
CQI can be only fitted in wireless heterogeneous networks (RRC) message, such as RRC even
Connect foundation (RRCConnectionSetup) message (i.e. msg4), RRC connection reconstruction
(RRCConnectionReestablishment) message and RRC connection reconfigure
(RRCConnectionReconfiguration) in message.
In Current standards, base station (eNB) can configure UE to carry out channel status reporting,
One including in three types:
Option one. broadband is reported
The subband report of option 2.eNB configuration
The subband report that option 3.UE selects
Non-MIMO operation will not use broadband to report (option one).Due to LC-MTC UE
Generally only have individual antenna for cost consideration, therefore it will not be configured into line width band
Report.Therefore, LC-MTC UE can consider to use the subband report (option of eNB configuration
2) or UE select subband report (option 3).
For subband report (option 2) of eNB configuration, depend on system bandwidth, subband
Size is 4-8 PRB.UE report broadband CQI and a small amount of subband of being specified by eNB
CQI value.The CQI of each subband, with 2 bits of encoded, represents the difference with broadband CQI.
Subband report (option 3) selected for UE, UE selects M best subband (its
Middle M depends on system bandwidth), and calculate an average cqi value and by this average CQI
Value (form with the difference of broadband CQI) and selected subband are reported to eNB.Week
The CQI of phase property uses PUCCH, and acyclic CQI is carried by PUSCH.
Summary of the invention
But, the current above-mentioned channel quality measurement scheme for normal UE is not all suitable for
LC-MTC UE, because following reason:
1.LC-MTC UE only has individual antenna, and it can not be measured all measurement options and all need
The broadband CQI wanted.
2. the subband measured by is more than 6 PRB.If subband is defined as 6
PRB, then the quantity of subband will exceed current definition.
3.LC-MTC UE measures the measurement result being only provided that a subband every time.
4.LC-MTC UE only supports minority transmission mode, it is therefore possible to be greatly simplified measurement
Control.
5.LC-MTC UE needs to consider coverage enhancement, and does not accounts for during pre-test
Coverage enhancement.
Additionally, usually assume that LC-MTC UE is fixing, channel matter the most frequently
Measurement is sufficient to.And after a subband is measured, LC-MTC UE needs
Being switched to other frequencies measure, this process is more complicated compared with common UE, therefore surveys
Amount process needs carefully to design and avoid any unnecessary measurement.To this end, in this article
Pay close attention to aperiodicity to measure, i.e. only measure when needed.
Thus, it will be seen that the channel quality measurement of LC-MTC UE can not directly use biography
The measurement process for common UE of system, but need to re-start design, and currently also do not have
There is the ripe scheme of the channel quality measurement being specifically designed to LC-MTC UE.
For problem above, the invention provides a kind of for MTC UE (more specifically, low
Complexity MTC UE) signal channel quality measuring method and device.
According to the first aspect of the invention, it is provided that a kind of channel matter for MTC UE
The method of measurement, the method performed at MTC UE includes: obtain about described MTC
The subband of multiple subbands of UE channel quality measurement to be carried out measures the information of sequence；Measuring
In cycle, measure sequence according to described subband and perform the channel quality measurement of the plurality of subband.
According to another aspect of the present invention, it is provided that a kind of channel matter for MTC UE
The device of measurement, described device is positioned in described MTC UE, including: acquiring unit,
It is configured to obtain the multiple subbands about described MTC UE channel quality measurement to be carried out
Subband measure sequence information；Measuring unit, it is configured in the measurement cycle, root
Measure sequence according to described subband and perform the channel quality measurement of the plurality of subband.
Accompanying drawing explanation
Description by the detailed description of the invention below with reference to the present invention given by drawings below
Afterwards, it is better understood with the present invention, and other objects of the present invention, details, feature
Will become apparent from advantage.In the accompanying drawings:
Fig. 1 shows that the channel quality for MTC UE according to embodiment of the present invention is surveyed
The flow chart of the method for amount；
Fig. 2 shows that the channel quality for MTC UE according to embodiment of the present invention is surveyed
The schematic diagram of the device of amount；
Fig. 3 shows the analogous diagram of the channel quality measurement scheme according to the present invention.
Detailed description of the invention
It is more fully described the preferred embodiment of the present invention below with reference to accompanying drawings.Although it is attached
Figure shows the preferred embodiment of the present invention, however, it is to be appreciated that can be with various shapes
Formula realizes the present invention and should not limited by embodiments set forth herein.On the contrary, it is provided that this
A little embodiments are to make the present invention more thorough and complete, and can be by the present invention's
What scope was complete conveys to those skilled in the art.
But the feature of LC-MTC business is data volume, and little join domain is big.Therefore, eNB
Generally specific LC-MTC UE will not be dispatched to other subbands, because a LC-MTC
UE will not bring the biggest burden.By multiplexing between user, each subband can balance well,
It is therefore possible to that configured by eNB and UE configuration channel quality measurement is merged into a choosing
Xiang Zhong.This will make configure simpler and reduce expense.
The basic thought of the present invention is for being in the normal and LC-MTC UE of coverage enhancement pattern
Definition subband measures sequence, and eNB starts one to MTC UE and measures the cycle, in this measurement
During cycle, MTC UE measures, according to this subband, the letter that sequence performs the subband of predetermined number
(such as CQI measures or Reference Signal Received Power (RSRP) is measured) is measured in road.
Fig. 1 shows that the channel quality for MTC UE according to embodiment of the present invention is surveyed
The flow chart of the method 100 of amount.Wherein, method 100 perform in MTC UE or by
MTC UE performs.
As shown in fig. 1, in step 110, MTC UE obtains about its channel matter to be carried out
The subband of one or more subbands of measurement measures the information of sequence.
In one implementation, subband measures sequence by the serving BS (eNB) of MTC UE
Specify.
Such as, this subband measurement sequence can be passed through system message to MTC UE by serving BS
Indicate.One example of this sequence is golden sequence.
Can also define in a system specification additionally, this subband measures sequence.
In another implementation, subband measurement sequence can be by MTC UE according to specific function
Relation derivation obtains.
For example, it is possible to indicated by system message by base station or advise the most in advance
A fixed functional relationship measuring sequence about subband.MTC UE can be according to this functional relationships
System is derived by subband and measures sequence.
Subband is measured sequence and is configured such that next subband to be measured is pre-test therewith
The maximum subband of the quadratic sum of N number of frequency distance surveyed between subband.Such as, if
There is subband { S1,S2,S3,…,Sk, the subband of the pre-test of the sum currently taken be respectively Sn and
Sm, next subband S to be measurediDetermined by following equation (1):
Wherein SiBelong to set { S1,S2,Sm-1,Sm+1,…,Sn-1,Sn+1,…,Sk, N=2.
By so determining that subband measures sequence, it is ensured that the subband of the measurement in report to the greatest extent may be used continuously
Can be uncorrelated, wherein N is specified by base station.
It follows that in step 120, in the measurement cycle, MTC UE is according to acquired son
Band is measured sequence and is performed the channel quality measurement of one or more subbands.
The channel quality measurement of subband can be by the physical downlink control channel of evolution
(EPDCCH) initiate.When subband is measured sequence and is opened a period of time (measurement cycle),
ENB can ask MTC UE to perform these RRMs (RRM) measurement.MTC
UE will perform during this measurement cycle measure and as required provide measurement report or
If measurement result triggers some measurement event being pre-configured with, then provide measurement report.
In one implementation, MTC UE also receives about subband to be measured from its serving BS
The instruction information of quantity, and in the measurement cycle, the subband of indicated quantity is performed
Channel quality measurement.
Owing to MTC UE is usually fixed, so eNB such as can be at the channel measured
Decline change starts to measure for starting time negative.In this case, the number of subband to be measured
Amount such as can be determined by following equation (2):
Min (Max (1 ,-W), Ns-1) (2)
Wherein Ns is the sum of MTC subband, and W is measured channel fading change.And want
The order of the subband measured is measured sequence by subband and is determined.
In one implementation, MTC UE can be by measuring the demodulated reference signal that base station sends
(DMRS) perform down channel quality to measure.
In one implementation, according to the configuration of eNB, subband measures sequence can only include system
The subset of the subband of bandwidth.This is in order to avoid some subband such as seriously may be made by normal UE
With (being such as used for the PRB of the EPDCCH of tradition UE).
Additionally, method 100 can also include: when MTC UE is in coverage enhancement pattern,
For each subband to be measured, multiple subframes repeat the channel matter of described subband
Measurement.
This thought is applicable to layer 1 and measures, and such as CSI, and also is applicable to wireless heterogeneous networks
(RRC) measure, such as RSRP.
In one implementation, eNB may indicate that the persistent period in measurement cycle, and UE can lead to
Spending this persistent period show that needing to perform how many times measures, or directly can also be referred to by eNB
Show the number of times of measurement.This can be semi-statically configured by higher signaling or dedicated signaling,
Can also indicate in EPDCCH and enable to dynamically configure.
In another implementation, number of repetition can be covered according to set in advance by MTC UE
Lid strengthens rank and determines.MTC UE should measure son as much as possible during the measurement cycle
Band.
Additionally, when the number of repetition of channel quality measurement exceedes predetermined threshold value, MTC
Automatic pause is measured by UE.This is that the LC-MTC UE covered in order to avoid being in the degree of depth will
Power dissipation is performing the measurement of multiple subbands.
For coverage enhancement pattern, realizing according to one, base station can also be joined to MTC UE
Put a time threshold so that MTC UE enter after coverage enhancement pattern through time
Between when reaching this time threshold, the channel quality information of the pre-test of this MTC UE no longer by
Use.
In the method 100, in one implementation, measuring the cycle can be with the number of MTC UE
It is associated according to transmission.For example, it is possible to start at the end of each frequency-hopping transmissions of MTC UE
Measure.The subband measured can partly or entirely be overlapped by base station with frequency hopping pattern, thus
While frequency-hopping transmissions, complete channel quality measurement.
In another implementation, the measurement cycle can not be associated with data transmission.Namely
Saying, during the measurement cycle, MTC UE does not perform the transmission of any data.
In another implementation, eNB can also send out in MTC UE performs the subband measured
Send EPDCCH/PDSCH.This is possible, the LC-MTC UE because eNB knows for sure
Measuring which subband.
Additionally, MTC UE can not perform periodically to measure, but seek in the system of receiving
When exhaling message, the subband at system paging message place is performed channel quality measurement.
Additionally, MTC UE performed channel quality measurement before performing channel access in advance, and
And just to measured by base station repeats in access procedure or at the end of channel quality measurement
Channel quality information.
Further, method 100 also includes: MTC UE according to the result of channel quality measurement,
Each subband or the channel quality information of optimal sub-band is reported to serving BS.
In this case, without subband more preferable than current sub-band time, MTC UE also may be used
Not report any channel quality information.
In another implementation, base station can configure a predetermined threshold to MTC UE, makes
Must be only when the quality of subband measured be not less than this predetermined threshold, MTC UE is just to base
Stand report measured by channel quality information.
In this article, channel quality information is the channel matter of measured subband and current sub-band
Difference between amount or and a upper sub-band channel quality measured between difference, this with work as
Broadband CQI in front standard 3GPP TS 23.213 is different.
Additionally, in one implementation, the size of measured each subband is fixed with MTC subband
Justice is corresponding.It is to say, the size measuring subband can be come really according to the definition of MTC subband
Fixed.In this way, foundation pass between the size of subband and the definition of MTC subband is being measured
Connection, without the size explicitly indicating measurement subband, (this is different from for normal UE's
The subband of 4-8 PRB is measured).
Additionally, according to the design of the present invention, the request from eNB can be used for triggering multiple MTC
The channel quality measurement of UE.This can come by sending public-measurement configuration in system message
Realize or realize by having the EPDCCH of public RNTI.Please receiving this
When asking, each MTC UE will start disposable measurement.
Above the downlink quality measurement scheme of base station to MTC UE is described.Another
Aspect, for uplink signal-channel quality is measured, base station can ask MTC UE to this base
Stand transmission high-level signaling (such as layer 2 or layer 3 signaling) so that this base station can according to
Reference signal in the physical channel carrying this high-level signaling realizes uplink signal-channel quality and surveys
Amount.
Fig. 2 shows that the channel quality for MTC UE according to embodiment of the present invention is surveyed
The schematic diagram of the device 200 of amount.Device 200 is such as positioned in MTC UE or by MTC UE
Realize.
As shown in Figure 2, device 200 includes acquiring unit 210, and it is configured to obtain pass
Subband in multiple subbands of described MTC UE channel quality measurement to be carried out measures sequence
Information；And measuring unit 220, it was configured in the measurement cycle, according to described subband
Measure sequence and perform the channel quality measurement of the plurality of subband.
In one implementation, subband measure sequence by MTC UE serving BS specify or
According to specific function relation derivation.
In one implementation, subband is measured sequence and is configured such that next subband to be measured
The subband that the quadratic sum of the frequency distance between the subband being and measured is maximum.
In one implementation, device 200 also includes: receive unit 230, its be configured to from
The serving BS of MTC UE receives the instruction information about number of sub-bands to be measured, and
Measuring unit 220, in this measurement cycle, performs channel matter to the subband of indicated quantity
Measurement.
In one implementation, when MTC UE is in coverage enhancement pattern, for measure
Each subband, measuring unit 220 repeats the channel matter of this subband in multiple subframes
Measurement.
In one implementation, repeat described subband channel quality measurement number of times by
The serving BS of MTC UE indicates or by MTC UE according to coverage enhancement set in advance
Rank determines.
In one implementation, when indicated or determined by number of repetition exceed predetermined threshold
Time, MTC UE suspends channel quality measurement.
In one implementation, the measurement cycle is associated with the data transfer cycle of MTC UE.
In one implementation, during the measurement cycle, MTC UE does not perform the transmission of any data.
In one implementation, device 200 also includes transmitting element 240, and it is configured to basis
The result of channel quality measurement, to the serving BS of MTC UE report in multiple subbands every
Individual subband or the channel quality information of optimal sub-band.
In one implementation, the size of each subband in multiple subbands defines with MTC subband
Corresponding.
An instantiation of such scheme is given below.
Assuming that LC-MTC UE works in normal covering pattern, its current sub-band is 10, and
And one have 17 subbands.ENB is arranged in 2 subbands of each measurement period measurement, and
UE measures a subframe of each subband, and it is golden sequence that subband measures sequence, and skew is
Specific to UE's, i.e. determined by the public wireless network temporary mark (RNTI) of UE,
And counted by number of sub frames.
Assuming (to be expressed as subframe N) in subframe, eNB indicates LC-MTC by EPDCCH
UE reports CSI, then LC-MTC UE such as calculates son to be measured according to golden sequence
Band is subband 2 and 15.
In subframe N+1, LC-MTC UE is switched to subframe 2, and in subframe N+2, its
Measure the channel quality of this subband.
In subframe N+3, LC-MTC UE is switched to subframe 15, and in subframe N+4, its
Measure the channel quality of subframe 15.
In subframe N+5, it switches back into current sub-band 10, and reports CSI in subframe N+6.
Therefore, it is subframe N+6 that the resource for PUSCH is distributed, and this is different from the row of current UE
For.
CSI measurement report in this example is:
| The CQI value of subband 2 |
| The CQI value of subband 15 |
CQI value is determined by the difference of the CQI between measured subband and current sub-band, as
Shown in following table:
| The coded-bit of CQI | Deviant (dB) |
| 00 | ≤ 1 |
| 01 | 2 |
| 10 | 3 |
| 11 | >=4 |
Then eNB can select between measured subband and current sub-band, and
Instruction MTC UE is switched to more preferable subband.
Fig. 3 shows the analogous diagram of the channel quality measurement scheme according to the present invention.
In the simulation, example is selected to assess proposed channel quality based on a subband
The performance of measurement scheme.Assume that system bandwidth is 20MHZ, be configured with 16 subbands, often
50ms performs one-shot measurement, and the quantity of subband to be measured is by above formula (2)
Determine.Simulation result is as shown in Figure 3.It illustrates experienced channel fading profiles.
Initial subband is subband 1, and its channel situation is illustrated by the curve of lower section in Fig. 3.It can be seen that
Occur in that twice deep fading.But, proposed scheme can be prevented effectively from this phenomenon,
And in most time, it demonstrates higher gain than the scheme selected without subband.
Utilize the solution of the present invention, it would be preferable to support arrowband MTC UE (especially low complex degree
MTC UE) measure different sub-band, this has for carrying out according to the scheduling of frequency very much
With.Proposed scheme is more more efficient than conventional scheme and expense is lower.
In one or more exemplary design, can use hardware, software, firmware or they
Combination in any realize function described herein.If realized with software, the most permissible
Described function is stored on a computer-readable medium as one or more instructions or code,
Or transmit as the one or more instructions on computer-readable medium or code.Calculate
Machine computer-readable recording medium includes computer-readable storage medium and communication media, and wherein communication media includes
Help computer program and be delivered to the arbitrary medium of another place from a place.Storage is situated between
Matter can be the addressable any usable medium of universal or special computer.This computer can
Read medium and can include, for example, but not limited to, RAM, ROM, EEPROM, CD-ROM
Or other optical disc memory apparatus, disk storage equipment or other magnetic storage apparatus, or available
In with universal or special computer or the addressable instruction of universal or special processor or data
Other medium any of desired code modules is carried or stored to the form of structure.And
And, arbitrarily connect computer-readable medium of can also being known as.Such as, if software is
Use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (DSL) or the reddest
The wireless technology of outside line, radio and microwave etc is come from website, server or other is long-range
Source transmission, then coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray,
The wireless technology of radio and microwave etc is also included within the definition of medium.
General processor, digital signal processor (DSP), special IC can be used
(ASIC), field programmable gate array (FPGA) or other PLD, point
Found door or transistor logic, discrete hardware components or be used for performing function as herein described
Combination in any realize or perform combining the various exemplary logical block described by the disclosure,
Module and circuit.General processor can be microprocessor, or, processor can also be
Any common processor, controller, microcontroller or state machine.Processor can also
It is embodied as the combination of calculating equipment, such as, DSP and the combination of microprocessor, multiple micro-place
Reason device, one or more microprocessor and the combination of DSP core, or other this kind any
Structure.
Those of ordinary skill in the art it is also understood that and combine what embodiments herein described
Various exemplary logical blocks, module, circuit and algorithm steps can be implemented as electronic hardware,
Computer software or combination.This in order to clearly show that between hardware and software
Interchangeability, all encloses various exemplary parts, block, module, circuit and step above
General description has been carried out around its function.It is implemented as hardware as this function still to realize
Become software, depend on specifically applying and apply design constraint over the whole system.
Those skilled in the art can realize described for every kind of application-specific in the way of flexible
Function, but, this realize decision-making and should not be interpreted as causing a departure from the scope of this disclosure.
The above description of the disclosure is for making any those of ordinary skill of this area be capable of
Or the use present invention.To those skilled in the art, the various amendments of the disclosure
Will be apparent from, and general principle defined herein can also be without departing from this
Other deformation it is applied in the case of bright spirit and scope.Therefore, the present invention is not
Be limited to example as herein described and design, but with principle disclosed herein and novel features
The widest scope consistent.
Claims (15)
1. the method being used for the channel quality measurement of MTC UE, described method is described
Perform at MTC UE, including:
Obtain the subband of the multiple subbands about described MTC UE channel quality measurement to be carried out
Measure the information of sequence；
In the measurement cycle, measure sequence according to described subband and perform the channel of the plurality of subband
Mass measurement.
2. the method for claim 1, wherein said subband measures sequence by described
The serving BS of MTC UE is specified or according to specific function relation derivation.
3. the method for claim 1, wherein said subband is measured sequence and is configured to
Make the next subband that must measure be frequency distance between the subband measured square
With maximum subband.
4. the method for claim 1, also includes:
The instruction about number of sub-bands to be measured is received from the serving BS of described MTC UE
Information, and
In the described measurement cycle, the subband of indicated quantity is performed channel quality measurement.
5. the method for claim 1, when described MTC UE is in coverage enhancement mould
During formula, described method also includes:
For each subband to be measured, multiple subframes repeat the channel of described subband
Mass measurement.
6. method as claimed in claim 5, wherein repeats the channel matter of described subband
The number of times of measurement is indicated or by described MTC UE by the serving BS of described MTC UE
Determine according to coverage enhancement rank set in advance.
7. method as claimed in claim 6, also includes:
When indicated or determined by number of repetition exceed predetermined threshold time, suspend described letter
Road mass measurement.
8. the method for claim 1, wherein said measurement cycle and described MTC UE
Data transfer cycle be associated.
9. the method for claim 1, wherein during the described measurement cycle, described
MTC UE does not perform the transmission of any data.
10. the method for claim 1, also includes:
According to the result of channel quality measurement, report institute to the serving BS of described MTC UE
State each subband in multiple subband or the channel quality information of optimal sub-band.
11. the method for claim 1, each subband in wherein said multiple subbands
The definition of size and MTC subband corresponding.
12. 1 kinds of devices for the channel quality measurement of MTC UE, described device is positioned at
In described MTC UE, including:
Acquiring unit, it is configured to obtain about described MTC UE channel quality to be carried out
The subband of the multiple subbands measured measures the information of sequence；
Measuring unit, it was configured in the measurement cycle, measures sequence according to described subband and holds
The channel quality measurement of the plurality of subband of row.
13. devices as claimed in claim 12, wherein said subband is measured sequence and is configured
For making the next subband that must measure be the flat of frequency distance between the subband measured
Side and maximum subband.
14. devices as claimed in claim 12, also include:
Receiving unit, it is configured to receive about wanting from the serving BS of described MTC UE
The instruction information of the number of sub-bands measured, and
The subband of indicated quantity, in the described measurement cycle, is held by wherein said measuring unit
Row channel quality measurement.
15. methods as claimed in claim 12, when described MTC UE is in coverage enhancement
During pattern, for each subband to be measured, described measuring unit repeats in multiple subframes
Perform the channel quality measurement of described subband.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510250757.0A CN106304171B (en) | 2015-05-15 | 2015-05-15 | The method and apparatus of channel quality measurement for MTC UE |
| TW105114001A TW201644216A (en) | 2015-05-15 | 2016-05-05 | Method and apparatus for channel quality measurement for mtc ue |
| PCT/IB2016/000768 WO2016185280A1 (en) | 2015-05-15 | 2016-05-11 | Method and apparatus for channel quality measurement for mtc ue |
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|---|---|---|---|
| CN201510250757.0A CN106304171B (en) | 2015-05-15 | 2015-05-15 | The method and apparatus of channel quality measurement for MTC UE |
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| CN106304171B CN106304171B (en) | 2019-07-23 |
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| WO2015062887A2 (en) * | 2013-10-31 | 2015-05-07 | Sony Corporation | Telecommunications apparatus and methods |
| CN105340316A (en) * | 2013-07-25 | 2016-02-17 | Lg电子株式会社 | Method of reporting channel state information and apparatus thereof |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105340316A (en) * | 2013-07-25 | 2016-02-17 | Lg电子株式会社 | Method of reporting channel state information and apparatus thereof |
| WO2015062887A2 (en) * | 2013-10-31 | 2015-05-07 | Sony Corporation | Telecommunications apparatus and methods |
Non-Patent Citations (1)
| Title |
|---|
| NTT DOCOMO: "Remaining issues on PDSCH for low complexity MTC", 《3GPP TSG RAN WG1 MEETING #80BIS R1-152053》 * |
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| Publication number | Publication date |
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| TW201644216A (en) | 2016-12-16 |
| CN106304171B (en) | 2019-07-23 |
| WO2016185280A1 (en) | 2016-11-24 |
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