CN106375047B - A kind of detection method of detectable signal, base station and user equipment - Google Patents
A kind of detection method of detectable signal, base station and user equipment Download PDFInfo
- Publication number
- CN106375047B CN106375047B CN201510428958.5A CN201510428958A CN106375047B CN 106375047 B CN106375047 B CN 106375047B CN 201510428958 A CN201510428958 A CN 201510428958A CN 106375047 B CN106375047 B CN 106375047B
- Authority
- CN
- China
- Prior art keywords
- detectable signal
- base station
- frequency point
- dci
- frame number
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of detection method of detectable signal, base station and user equipmenies, and this approach includes the following steps：Base station sends detectable signal Downlink Control Information DCI in the radio frames of preset authorization frequency point to the user equipment (UE) for meeting preset condition, so that the UE carries out the reception of perception frequency point detectable signal according to the DCI, and by Physical Uplink Shared Channel PUSCH to the intensity of the base station feedback detectable signal；The base station receives the intensity for the detectable signal that the UE is sent；Wherein, the UE of the compound preset condition is the UE under discontinuous reception DRX states on the mandate frequency point.The above method by a radio frames be preset authorization frequency point radio frames on to terminal send detectable signal DCI, UE is set to carry out the reception of detectable signal according to DCI, the resource for authorizing frequency point is saved compared with the existing technology, effectively increases the utilization rate for authorizing frequency spectrum resource.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of detection method of detectable signal, base station and user equipment.
Background technology
With the rapid development of wireless communication technique, frequency spectrum resource becomes more and more nervous.Especially with wireless local
Net (Wireless Local Area Networks, abbreviation WLAN) technology, wireless personal area network (Wireless
Personal Area Network Communication Technologies, abbreviation WPAN) technology development, it is more and more
People wirelessly access internet by these technologies.These network technologies use unauthorized band operation mostly.
Due to the fast development of WLAN, WRAN radio communication service, the unauthorized frequency range that these networks are worked gradually is saturated.And
Other communication service (such as visual broadcast service) needs communication network to provide certain protection, keeps them logical from other
The interference of communication service.In order to provide good protection, the specific authorized spectrum band of frequency management department specific assigned is for specific
Communication service uses.Compared with authorized spectrum band, the frequency spectrum resource of unauthorized frequency range will lack very much (most frequency spectrum resource quilts
For doing authorized spectrum band use).And the utilization rate of a considerable amount of mandate frequency spectrum resources is very low.Then there have been certain
Partial frequency spectrum resource is relatively fewer but the portfolio that carries thereon is very big, and the frequency spectrum resource utilization rate that other has authorized
But very low.Therefore, based on current frequency spectrum resource allocation method, there is the utilization rate of quite a few frequency spectrum resource very low.
Cognitive radio technology is to solve the wireless communication of frequency spectrum resource anxiety caused by wireless data service increases
New technology.It is obtained by frequency spectrum perception and authorizes frequency spectrum state, if be in idle condition, cognitive system can re-use this
Frequency range meets broadband services transmission demand to improve frequency spectrum service efficiency.
The uplink and downlink interference water that the base station of cellular network is subject to terminal on frequency point when cellular network uses frequency spectrum perception
Flat different, the frequency spectrum perception result that simple base station frequency spectrum perception result or terminal report can not correctly reflect frequency point
Service condition.Current cognitive radio technology can not correctly reflect the service condition of frequency point using unidirectional cognition technology.
The coverage area of the characteristics of additionally, due to beehive net, base station and the respective wireless signal transmitting-receiving of terminal has intersection but has not been
Full weight is closed, so the disturbed condition perceived between base station and terminal and each terminal is not fully.So for bee
Nest group frequency spectrum share off the net, there are a large amount of hidden node problem, (i.e. transmitting terminal perceives the presence less than interference, but it is logical
The influence that the receiving terminal of letter can be interfered), communication interaction between base station and terminal it is reliable, need receiving-transmitting sides respective
Interference is all not present in transceiving range can just reach.For the perception side of shared frequency spectrum, base station or the respective sense of terminal are depended merely on
Hidden node problem can not be solved by knowing, and for the user of shared frequency spectrum, perception is only the first step, how to be existed greatly
In the environment of measuring concealed nodes, effective occupy shares frequency spectrum, declares itself right to use to the frequency spectrum, and need to solve
Problem.
A kind of method solving a large amount of concealed nodes is before terminal carries out business data transmission, and base station is in user equipment
It notifies UE that some unauthorized frequency point is gone to receive detectable signal on the residence sub-band of (User Experience, abbreviation UE), and is adjusting
N detectable signal is continuously transmitted on the unauthorized frequency point of degree.UE carries out the reception of detectable signal, and feedback detection signal strength.
It works to unauthorized frequency point if necessary to dispatch multiple terminals simultaneously, then needing to occupy a large amount of mandate frequency point money
Source notice UE goes respective unauthorized frequency point to receive detectable signal, and waste authorizes frequency point resource.
Invention content
For the defects in the prior art, the present invention provides a kind of detection method of detectable signal, base station and users to set
It is standby, effectively increase the utilization rate for authorizing frequency spectrum resource.
In a first aspect, the present invention provides a kind of detection method of detectable signal, including：
Base station is sent to the user equipment (UE) for meeting preset condition under detectable signal in the radio frames of preset authorization frequency point
Row control information DCI, so that the UE carries out the reception of perception frequency point detectable signal according to the DCI, and passes through physical uplink
Shared intensity of the channel PUSCH to the base station feedback detectable signal；
The base station receives the intensity for the detectable signal that the UE is sent；
Wherein, the UE of the compound preset condition is to be under discontinuous reception DRX states on the mandate frequency point
UE。
Optionally, the radio frames of the position for authorizing the radio frames of frequency point to be equal to 1 for radio frame number mould 20.
Optionally, the DCI includes the band information of the detectable signal or the information of detectable signal sending duration.
Second aspect, the present invention also provides a kind of detection methods of detectable signal, including：
User equipment (UE) receives the detectable signal Downlink Control Information that base station is sent in the radio frames of preset authorization frequency point
DCI；
The UE determines the position of frequency range to be detected according to the DCI, and is obtained on the position of the frequency range to be detected
It is the positive integer more than or equal to 1 to take the quantity N, N of detection wireless frame number；
The UE carries out the reception of the detectable signal of perception frequency point in N number of radio frame number, and shared by physical uplink
Intensity of the channel PUSCH to the base station feedback detectable signal.
Optionally, the quantity N of the detection wireless frame number does not include position of the radio frame number mould 20 equal to 1 and radio frame number
Mould 40 is equal to 0 position.
The third aspect, the present invention also provides a kind of base stations, including：
Sending module is visited for being sent to the user equipment (UE) for meeting preset condition in the radio frames of preset authorization frequency point
Survey signal downlink control information DCI；
Receiving module, the intensity for receiving the detectable signal that the UE is sent；
Wherein, the UE of the compound preset condition is to be under discontinuous reception DRX states on the mandate frequency point
UE。
Optionally, the radio frames for authorizing the radio frames of frequency point to be equal to 1 for radio frame number mould 20.
Optionally, the DCI includes the band information of the detectable signal or the information of detectable signal sending duration.
Fourth aspect, the present invention also provides a kind of user equipmenies, including：
First receiving module, the detectable signal downlink control sent in the radio frames of preset authorization frequency point for receiving base station
Information DCI processed；
Acquisition module, the position for determining frequency range to be detected according to the DCI, and in the position of the frequency range to be detected
It is the positive integer more than or equal to 1 to set and obtain the quantity N, N of detection wireless frame number；
Second receiving module, the reception of the detectable signal for carrying out perception frequency point in N number of radio frame number；
Sending module, it is described for the detectable signal of perception to be sent to by Physical Uplink Shared Channel PUSCH
Base station.
Optionally, the quantity N of the detection wireless frame number does not include position of the radio frame number mould 20 equal to 1 and radio frame number
Mould 40 is equal to 0 position.
As shown from the above technical solution, detection method, base station and the user equipment of a kind of detectable signal provided by the invention,
By in a radio frames be preset authorization frequency point radio frames on to terminal send detectable signal DCI, make UE according to DCI
The reception for carrying out detectable signal saves the resource for authorizing frequency point, effectively increases mandate frequency spectrum resource compared with the existing technology
Utilization rate.
Description of the drawings
Fig. 1 is a kind of flow diagram of the detection method for detectable signal that one embodiment of the invention provides；
Fig. 2 is a kind of flow diagram of the detection method for detectable signal that another embodiment of the present invention provides；
Fig. 3 is a kind of structural schematic diagram for base station that one embodiment of the invention provides；
Fig. 4 is a kind of structural schematic diagram for user equipment that one embodiment of the invention provides.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of invention is further described.Following embodiment is only used for more clear
Illustrate to Chu technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
Fig. 1 shows a kind of flow diagram of the detection method for detectable signal that one embodiment of the invention provides, such as Fig. 1
Shown, this method comprises the following steps：
101, base station sends detection letter in the radio frames of preset authorization frequency point to the user equipment (UE) for meeting preset condition
Number Downlink Control Information DCI so that the UE carries out the reception of perception frequency point detectable signal according to the DCI, and passes through physics
Intensity of the Uplink Shared Channel PUSCH to the base station feedback detectable signal.
Wherein, the radio frames of the position for authorizing the radio frames of frequency point to be equal to 1 for radio frame number mould 20；It is described compound pre-
If the UE of condition is the UE under discontinuous reception DRX states on the mandate frequency point；The DCI includes the detection letter
Number band information or detectable signal sending duration information.
102, the base station receives the intensity for the detectable signal that the UE is sent.
Base station notifies institute on authorizing radio frames of the frequency point mould 20 equal to 1 by sending detectable signal DCI in the above method
Have the mandate frequency point be resident under discontinuous reception (Discontinuous Reception, abbreviation DRX) state
UE makes the signal quality detection for accordingly being perceived frequency range.By notifying all terminals to carry out detection letter in a radio frames
Number quality testing can save and authorize frequency point resource, effectively improve mandate frequency spectrum resource utilization rate.
Fig. 2 shows a kind of flow diagram of the detection method of detectable signal of one embodiment of the invention offer, such as Fig. 2
Shown, this approach includes the following steps：
201, user equipment (UE) receives the detectable signal downlink control that base station is sent in the radio frames of preset authorization frequency point
Information DCI.
202, the UE determines the position of frequency range to be detected according to the DCI, and in the position of the frequency range to be detected
The upper quantity N, N for obtaining detection wireless frame number is the positive integer more than or equal to 1.
Wherein, the quantity N of the detection wireless frame number does not include position of the radio frame number mould 20 equal to 1 and radio frame number mould
40 are equal to 0 position.
203, the UE carries out the reception of the detectable signal of perception frequency point in N number of radio frame number, and passes through physical uplink
Shared intensity of the channel PUSCH to the base station feedback detectable signal.
The above method is described in detail below.
UE can mark the detectable signal of reception and the subzone network of the UE temporarily after the DCI for receiving base station transmission
It is associated to know (Cell Radio Network Temporary Identifier, abbreviation C_RNTI).
Specific base station can be sent out in position of the radio frame number mould 20 equal to 1 on PCFICH channels when sending DCI to UE
CFI=3 is sent, and sends detectable signal DCI on corresponding PDCCH channels, at this moment UE is according to the instruction information of CFI=3, surface
M radio frames after receiving the information send detectable signal, and UE can go corresponding frequency range to carry out according to certain rule
The reception of detectable signal.
Wherein, the content that detectable signal DCI includes is as follows：
start_pos：4bits, 1MHz wide frequency point initial position, represent in 12M which million.
assign_mode：1bits, 1MHz bandwidth allocation mode, (0 represents the detection of 1MHz full bandwidths, and 1 represents 500kHz bands
Width detection)
detect_pos：1bits, UE, according to the corresponding method of salary distribution, carry out the inspection of which frequency range under 1MHz bandwidth
It surveys.For example check that the preceding 500kHz of 1MHz full bandwidths or rear 500kHz are detected in 500kHz bandwidth detections.
detect_duration：3bits, detectable signal sending duration information amount to 9 bits, with SI-RNTI plus
It disturbs.
The rule for receiving detectable signal to UE below is described in detail.
(1) calculated according to the content of detectable signal DCI need the position for detecting frequency range detect the initial position of frequency range with
Include how many perception frequency points altogether on final position and the frequency range.Perceive the absolute frequency point call number calculation formula of frequency point such as
Under：
The maximum number of user that can be accommodated on (2) residence sub-bands is MAX_USER_NUM.
(3) each user carries out the reception of NUM_DETECT radio frames detectable signal.
(4) each user has unique C_RNTI values.
(5) each user proceeds by detection wireless frame number after receiving detection DCI and counts, and corresponds to N=
DETECT_COUNT.Radio frame number mould 20 equal to 1 position and radio frame number mould 40 equal to 0 position without counting.
(6) on the DETECT_COUNT detection wireless frame, the detectable signal for carrying out perception frequency point receives each user,
The absolute frequency point call number of corresponding perception frequency point calculates as follows：
Fig. 3 also shows a kind of structural schematic diagram of base station of one embodiment of the invention offer, as shown in figure 3, the base station
Including：
Sending module 31, for being sent to the user equipment (UE) for meeting preset condition in the radio frames of preset authorization frequency point
Detectable signal Downlink Control Information DCI.
Wherein, the radio frames for authorizing the radio frames of frequency point to be equal to 1 for radio frame number mould 20；The DCI includes described
The band information of detectable signal or the information of detectable signal sending duration.
Receiving module 32, the intensity for receiving the detectable signal that the UE is sent；
Wherein, the UE of the compound preset condition is to be under discontinuous reception DRX states on the mandate frequency point
UE。
Fig. 4 shows a kind of structural schematic diagram for user equipment that one embodiment of the invention provides, as shown in figure 4, the use
Family equipment includes：
First receiving module 41, the detectable signal downlink sent in the radio frames of preset authorization frequency point for receiving base station
Control information DCI；
Acquisition module 42, the position for determining frequency range to be detected according to the DCI, and in the frequency range to be detected
The quantity N, N that detection wireless frame number is obtained on position are the positive integer more than or equal to 1；
Wherein, the quantity N of the detection wireless frame number does not include position of the radio frame number mould 20 equal to 1 and radio frame number mould
40 are equal to 0 position.
Second receiving module 43, the reception of the detectable signal for carrying out perception frequency point in N number of radio frame number；
Sending module 44, for the detectable signal of perception to be sent to institute by Physical Uplink Shared Channel PUSCH
State base station.
Base station in above-mentioned Fig. 3 and the method in above-mentioned Fig. 1, the user equipment in above-mentioned Fig. 4 and the method in above-mentioned Fig. 2
It is one-to-one relationship, specific implementation detail all same, as a result, not to the base station in above-mentioned Fig. 3 and the use in Fig. 4
The specific implementation details of family equipment are described in detail.
In the specification of the present invention, numerous specific details are set forth.It is to be appreciated, however, that the embodiment of the present invention can be with
It puts into practice without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (10)
1. a kind of detection method of detectable signal, which is characterized in that including：
Base station sends detectable signal downlink control in the radio frames of preset authorization frequency point to the user equipment (UE) for meeting preset condition
Information DCI processed, so that the UE carries out the reception of perception frequency point detectable signal according to the DCI, and it is shared by physical uplink
Intensity of the channel PUSCH to the base station feedback detectable signal；
The base station receives the intensity for the detectable signal that the UE is sent；
Wherein, the UE for meeting preset condition is the UE under discontinuous reception DRX states on the mandate frequency point.
2. according to the method described in claim 1, it is characterized in that, described authorize the radio frames of frequency point for radio frame number mould 20 etc.
Radio frames in 1 position.
3. according to the method described in claim 1, it is characterized in that, the DCI include the detectable signal band information or
The information of detectable signal sending duration.
4. a kind of detection method of detectable signal, which is characterized in that including：
User equipment (UE) receives the detectable signal Downlink Control Information DCI that base station is sent in the radio frames of preset authorization frequency point；
The UE determines the position of frequency range to be detected according to the DCI, and obtains and visit on the position of the frequency range to be detected
The quantity N, N for surveying radio frame number are the positive integer more than or equal to 1；
The UE carries out the reception of the detectable signal of perception frequency point in N number of radio frame number, and passes through Physical Uplink Shared Channel
Intensity of the PUSCH to the base station feedback detectable signal.
5. according to the method described in claim 4, it is characterized in that, the quantity N of the detection wireless frame number does not include radio frames
The position of number mould 20 equal to 1 and radio frame number mould 40 are equal to 0 position.
6. a kind of base station, which is characterized in that including：
Sending module, for sending detection letter to the user equipment (UE) for meeting preset condition in the radio frames of preset authorization frequency point
Number Downlink Control Information DCI so that the UE carries out the reception of perception frequency point detectable signal according to the DCI, and passes through physics
Intensity of the Uplink Shared Channel PUSCH to the base station feedback detectable signal；
Receiving module, the intensity for receiving the detectable signal that the UE is sent；
Wherein, the UE for meeting preset condition is the UE under discontinuous reception DRX states on the mandate frequency point.
7. base station according to claim 6, which is characterized in that described to authorize the radio frames of frequency point for radio frame number mould 20 etc.
In 1 radio frames.
8. base station according to claim 6, which is characterized in that the DCI include the detectable signal band information or
The information of detectable signal sending duration.
9. a kind of user equipment, which is characterized in that including：
First receiving module controls letter for receiving the detectable signal downlink that base station is sent in the radio frames of preset authorization frequency point
Cease DCI；
Acquisition module, the position for determining frequency range to be detected according to the DCI, and on the position of the frequency range to be detected
The quantity N, N for obtaining detection wireless frame number are the positive integer more than or equal to 1；
Second receiving module, the reception of the detectable signal for carrying out perception frequency point in N number of radio frame number；
Sending module, for the detectable signal of perception to be sent to the base station by Physical Uplink Shared Channel PUSCH.
10. user equipment according to claim 9, which is characterized in that the quantity N of the detection wireless frame number does not include nothing
Position of the line frame number mould 20 equal to 1 and radio frame number mould 40 are equal to 0 position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428958.5A CN106375047B (en) | 2015-07-20 | 2015-07-20 | A kind of detection method of detectable signal, base station and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510428958.5A CN106375047B (en) | 2015-07-20 | 2015-07-20 | A kind of detection method of detectable signal, base station and user equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106375047A CN106375047A (en) | 2017-02-01 |
| CN106375047B true CN106375047B (en) | 2018-09-04 |
Family
ID=57880705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510428958.5A Expired - Fee Related CN106375047B (en) | 2015-07-20 | 2015-07-20 | A kind of detection method of detectable signal, base station and user equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106375047B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105513B (en) * | 2017-04-28 | 2020-11-13 | 国网浙江省电力公司宁波供电公司 | Detection signal detection method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790190A (en) * | 2010-01-08 | 2010-07-28 | 中兴通讯股份有限公司 | Method and device for detecting downlink control information |
| CN102625432A (en) * | 2011-01-28 | 2012-08-01 | 华为技术有限公司 | Discontinuous reception method and device for the same |
| CN103327615A (en) * | 2012-03-20 | 2013-09-25 | 华为技术有限公司 | Resource allocation indicating method, resource allocation method and equipment |
| CN103517392A (en) * | 2012-06-18 | 2014-01-15 | 电信科学技术研究院 | Method and equipment for TPC command determining |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101615987B1 (en) * | 2011-12-22 | 2016-05-11 | 엘지전자 주식회사 | Method for measuring a wireless communication state in a wireless access system, and apparatus therefor |
-
2015
- 2015-07-20 CN CN201510428958.5A patent/CN106375047B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790190A (en) * | 2010-01-08 | 2010-07-28 | 中兴通讯股份有限公司 | Method and device for detecting downlink control information |
| CN102625432A (en) * | 2011-01-28 | 2012-08-01 | 华为技术有限公司 | Discontinuous reception method and device for the same |
| CN103327615A (en) * | 2012-03-20 | 2013-09-25 | 华为技术有限公司 | Resource allocation indicating method, resource allocation method and equipment |
| CN103517392A (en) * | 2012-06-18 | 2014-01-15 | 电信科学技术研究院 | Method and equipment for TPC command determining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106375047A (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9001717B2 (en) | Method and apparatus of transmitting and receiving signal in a distributed antenna system | |
| CN104754763B (en) | For adjusting method, base station and the user equipment of terminal-to-terminal service resource allocation | |
| CN103716917B (en) | Base station equipment, terminal device and communication system | |
| US10178679B2 (en) | Signaling designs for network assisted interference cancellation and suppression | |
| US20180103459A1 (en) | Physical downlink control channel resource allocation method, and base station and user equipment | |
| US20150305014A1 (en) | Random access method and apparatus and system | |
| EP2896259B1 (en) | Network node and method for managing radio resources dedicated to beacon signalling for d2d discovery | |
| WO2016107518A1 (en) | Method for receiving/sending paging message and related network and user equipment | |
| CN105099612B (en) | A kind of method and apparatus transmitted using unlicensed spectrum | |
| CN105515721A (en) | Bit digit indication method and device | |
| CN104066194A (en) | Data transmission scheduling and data transmission method and equipment | |
| CN107889236A (en) | Parameter determination method, base station and user equipment | |
| US20210410193A1 (en) | Channel access method, access point and station | |
| CN104935396A (en) | Signaling notification method and system for interference elimination or suppression, and receiving method and device | |
| CN105530604B (en) | Communication control method and system based on location information | |
| CN116848916A (en) | Beam-based measurement and resource management techniques for wireless communication systems | |
| CN109756314A (en) | A kind of sending method and system of random access response | |
| US9031021B2 (en) | Method and apparatus for indicating physical resource block pairs for EPDCCH | |
| US20210185636A1 (en) | Method and device for controlling uplink interference of terminal information-collecting device in wireless communication system | |
| CN104469785B (en) | The method, system and device of collaboration communication between a kind of micro- station | |
| CN102457912B (en) | Method and device for sending load instruction information | |
| CN106375047B (en) | A kind of detection method of detectable signal, base station and user equipment | |
| CN107302423B (en) | A kind of method and apparatus of narrowband cellular communication | |
| CN118104366A (en) | Side link assisted cross link interference determination | |
| WO2017028684A1 (en) | Node selection method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |