CN109151853A - A kind of dispatching method and device of LTE system - Google Patents
A kind of dispatching method and device of LTE system Download PDFInfo
- Publication number
- CN109151853A CN109151853A CN201710497973.4A CN201710497973A CN109151853A CN 109151853 A CN109151853 A CN 109151853A CN 201710497973 A CN201710497973 A CN 201710497973A CN 109151853 A CN109151853 A CN 109151853A
- Authority
- CN
- China
- Prior art keywords
- logical channel
- downlink logical
- mcs
- bsrx
- data volume
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of dispatching method of LTE system and devices.This method comprises: determining whether the corresponding initial modulation coding mode MCS of downlink logical channel of base station scheduler schedules meets the first preset condition；If meeting the first preset condition, the data volume BSRx dispatched is needed to determine the MCS finally dispatched according to determining transport block size TBSize and the downlink logical channel.The embodiment of the present invention reduces padding, improves the efficiency of transmission of interface-free resources, while also reducing the mistake packet probability of the data packet, thereby reduce propagation delay time by adjusting MCS.
Description
Technical field
The present embodiments relate to the dispatching methods and device of mobile communication technology field more particularly to a kind of LTE system.
Background technique
For the resource allocation of long evolving system (Long Term Evolution, LTE) downlink, 3GPP is defined
Type0, type1 and type2 three types, for the resource distribution mode of type0 and type1,3GPP regulation uses resource block
The granularity of group (Resource Block Group, RBG), the size of RBG are related to system bandwidth.
Downlink and the scheduling controlling of uplink service are all the tune in evolved base station (Evolved Node B) in LTE system
It spends device to realize, scheduling is primarily referred to as the buffer area according to the channel conditions of terminal, QoS and each logic channel or logic channel group
The information such as state report (Buffer Status Report, BSR), determine corresponding dispatching priority, then further determine that
Its modulation coding scheme (Modulation and Coding Scheme, MCS) and resource block (Resource Block, RB)
Number determines RBG quantity and the position of distribution further according to MCS and BSR.In practical applications, it there is BSR to be less than by MCS and RB
The determining transport block size (Transport Block Size, TBSize) of number can be in valid data back in group packet procedures
Zero padding (padding), so that final scheduling data are equal to TBSize.
In the resource distribution mode of type0 and type1, a large amount of padding will do it.Padding transmission is nothing
Information is imitated, transmission efficiency of air interface is reduced；Although the Packet Error Ratio that terminal receives the data packet is usually 10%, re-transmission still can band
Carry out the increase of interface-free resources expense；For delay sensitive business, due to accidentally wrapping brought re-transmission, transmission can be further increased
Time delay.
Summary of the invention
The present invention provides the dispatching method and device of a kind of LTE system, to realize by adjusting MCS, reduces padding,
The efficiency of transmission of interface-free resources is improved, while also reducing the mistake packet probability of the data packet, thereby reduces propagation delay time.
In a first aspect, the embodiment of the invention provides a kind of dispatching methods of LTE system, this method comprises:
Determine whether the corresponding initial modulation coding mode MCS of the downlink logical channel of base station scheduler schedules meets first
Preset condition；
If meeting the first preset condition, according to determining transport block size TBSize and the downlink logical channel needs
The data volume BSRx of scheduling determines the MCS finally dispatched.
Second aspect, the embodiment of the invention also provides a kind of dispatching device of LTE system, which includes:
Judgment module, the corresponding initial modulation coding mode of downlink logical channel for determining base station scheduler schedules
Whether MCS meets the first preset condition；
Determining module, if for meeting the first preset condition, according to determining transport block size TBSize and it is described under
Row logic channel needs the data volume BSRx dispatched to determine the MCS finally dispatched.
The embodiment of the present invention reduces padding, improves the efficiency of transmission of interface-free resources, while also reducing by adjusting MCS
The mistake packet probability of the data packet, thereby reduces propagation delay time.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the dispatching method for LTE system that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart of the dispatching method of LTE system provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow chart of the dispatching method for LTE system that the embodiment of the present invention three provides；
Fig. 4 is a kind of structure chart of the dispatching device for LTE system that the embodiment of the present invention four provides.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing to of the invention specific real
Example is applied to be described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention,
Rather than limitation of the invention.
It also should be noted that only the parts related to the present invention are shown for ease of description, in attached drawing rather than
Full content.It should be mentioned that some exemplary embodiments are described before exemplary embodiment is discussed in greater detail
At the processing or method described as flow chart.Although operations (or step) are described as the processing of sequence by flow chart,
It is that many of these operations can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of operations can be by again
It arranges.The processing can be terminated when its operations are completed, it is also possible to have the additional step being not included in attached drawing.
The processing can correspond to method, function, regulation, subroutine, subprogram etc..
Embodiment one
Fig. 1 is a kind of flow chart of the dispatching method for LTE system that the embodiment of the present invention one provides.The present embodiment is applicable
In the resource allocation to LTE system downlink is scheduled the case where, this method can be by LTE system provided in an embodiment of the present invention
Dispatching device execute, the mode which can be used software and/or hardware realizes.
As described in Figure 1, the method for the present embodiment specifically includes:
S110, determine whether the corresponding initial modulation coding mode MCS of the downlink logical channel of base station scheduler schedules is full
The first preset condition of foot.
Wherein, in LTE system downlink and the scheduling controlling of uplink service be all evolved base station scheduler realize, adjust
Degree is primarily referred to as according to the channel conditions of terminal, QoS and each logic channel or the Buffer Status Report of logic channel group etc.
Information, determines corresponding dispatching priority, then further determines that its modulation coding scheme MCS.
Wherein, first preset condition, as initial modulation coding mode MCS are greater than 0, MCS and correspond to different orders,
It is preferred that value is between 0 to 28, preferably the value of MCS is integer.
If S120, meeting the first preset condition, believed according to determining transport block size TBSize and the downlink logical
Road needs the data volume BSRx dispatched to determine the MCS finally dispatched.
A kind of achievable embodiment of this step is, will be described initial if the TBSize is less than or equal to BSRx
MCS is as the MCS finally dispatched；If the TBSize is greater than BSRx, the MCS-1 of the second preset condition will be met as initial
MCS repeats the judgement for whether meeting the first preset condition.
The technical solution of the present embodiment determines the MCS finally dispatched by adjusting MCS, to reach reduction padding, mention
The purpose of the efficiency of transmission of high interface-free resources, while the mistake packet probability of the data packet is also reduced, thereby reduce propagation delay time.
Embodiment two
Fig. 2 is a kind of flow chart of the dispatching method of LTE system provided by Embodiment 2 of the present invention.The present embodiment is with above-mentioned
It is optimized based on embodiment, in the present embodiment, the method further includes: according to downlink logical channel type and right
Media intervention control layer (Medium Access Control, MAC) the subheader expense answered, determines that the downlink logical channel needs
The data volume BSRx to be dispatched.
Correspondingly, the method for the present embodiment specifically includes:
S210, corresponding MAC subheader expense is determined according to downlink logical channel type.
Specifically, the expense of the MAC subheader according to downlink logical channel type definition.
Specifically, if the downlink logical channel be broadcast control channel (Broadcast Control Channel,
BCCH) or Paging Control Channel (Paging Control Channel, PCCH), then do not increase MAC subheader expense, otherwise increase
The MAC subheader expense of preset byte.
Wherein, for the BCCH and PCCH of MAC layer transparent transmission, MAC subheader expense is not increased；For other logic channels, such as
Dedicated Traffic Channel (Dedicated Traffic Channel, DTCH) etc., increases the MAC subheader of M byte predetermined
Expense；For MAC control element (Control Element, CE), need to increase the MAC subheader expense of N byte.
Wherein, M and N is according to statistics value predetermined, and M generally takes the value between 3 to 5, and N generally takes between 1 to 3
Value.
S220, the data volume being stored in buffer area that the downlink logical channel needs to dispatch is determined.
Wherein, the data volume being stored in buffer area that the determination downlink logical channel needs to dispatch is radio chains
Road control (Radio Link Control, RLC) notifies corresponding each logic channel BSR of downlink to need that dispatches to be stored in buffer area
In data volume.
S230, using the adduction of the MAC subheader expense and the data volume being stored in buffer area as the downlink
Logic channel needs the data volume BSRx dispatched.
S240, determine whether the corresponding initial modulation coding mode MCS of the downlink logical channel of base station scheduler schedules is full
The first preset condition of foot.
If S250, meeting the first preset condition, believed according to determining transport block size TBSize and the downlink logical
Road needs the data volume BSRx dispatched to determine the MCS finally dispatched.
The technical solution of the present embodiment is avoided by increasing the pretreatment of MAC subheader expense for downlink logical channel
MAC subheader expense bring packet fragmentation problem is not accounted for, has reached reduction padding, has improved the effect of efficiency of transmission.
Embodiment three
Fig. 3 is a kind of dispatching method for LTE system that the embodiment of the present invention three provides, and the present embodiment is with above-described embodiment
Basis optimizes, and in the present embodiment, step is further determined that transport block size TBSize optimizes are as follows: according to downlink logical
Channel type and the corresponding initial MCS distribute resource block RB number；Or, when downlink logical channel is multiple, it will be multiple
The RB number of logic channel sums it up, and will sum it up as the RB number for being finally scheduled to terminal；According to determining RB number and described
Initial MCS determines transport block size TBSize.
Correspondingly, the method for the present embodiment specifically includes:
S310, resource block RB number is distributed according to downlink logical channel type and the corresponding initial MCS；Or, instantly
When row logic channel is multiple, the RB number of multiple logic channels is summed it up, will be summed it up as the RB number for being finally scheduled to terminal
Mesh.
Wherein, the priority for determining downlink logical channel based on priority policy by base station dispatcher, then according to preferential
Grade determines MCS from high to low and distributes RB number.For BCCH and PCCH, is determined according to initial MCS and dispatch MCS, and according to
The BSR and MCS for needing to dispatch obtain RB number；For other downlink logical channels, according to channel condition and confirmation character
(Acknowledgement, ACK)/NACK feeds back the MCS dispatched, and the BSR dispatched as needed and MCS is distributed
RB number；Finally, merging to the RB number for the multiple logic channels for being scheduled to same terminal, it is finally scheduled to this
The RB number of terminal.
S320, transport block size TBSize is determined according to determining RB number and the initial MCS.
Wherein, it can be determined according to the RB number of the determination and the initial MCS by searching for the agreement of downlink business
Transport block size TBSize.
Specifically, the RB number of the determination is the integral multiple of resource block group RBG size predetermined.Wherein, LTE system
The resource allocation for downlink of uniting, 3GPP defines type0, type1 and type2 three types, for the resource of type0 and type1
The method of salary distribution, 3GPP provide the granularity using RBG.It is related to system bandwidth as shown in table 1 for the size of RBG.For
The scheduling of type0 and type1, the RB number for being finally scheduled to the terminal need be RBG size integral multiple；For type2
Scheduling, the RB number for being finally scheduled to the terminal need not to be the integral multiple of RBG size.
RGB size under 1 different bandwidth of table
S330, determine whether the corresponding initial modulation coding mode MCS of the downlink logical channel of base station scheduler schedules is full
The first preset condition of foot.
If S340, meeting the first preset condition, believed according to determining transport block size TBSize and the downlink logical
Road needs the data volume BSRx dispatched to determine the MCS finally dispatched.
The technical solution of the present embodiment determines MCS and RB number by base station dispatcher, and then according to determining RB number
Transport block size TBSize is determined with the initial MCS, is solved in the resource distribution mode of type0 and type1, be will do it
A large amount of padding, thus the problem of reducing transmission efficiency of air interface.Although the Packet Error Ratio that terminal receives the data packet is usually
10%, but retransmit the increase that can still bring interface-free resources expense；For delay sensitive business, due to accidentally wrapping brought weight
It passes, can further increase the time delay of transmission, reduce user experience.Meanwhile for type2 resource distribution mode, it is also reduced
Padding improves the effect of efficiency of transmission.
Example IV
Fig. 4 is a kind of structure chart of the dispatching device for LTE system that the embodiment of the present invention four provides, and the present embodiment is applicable
In the resource allocation to LTE system downlink is scheduled the case where, the mode which can be used software and/or hardware is realized.
As shown in figure 4, described device includes: judgment module 410 and determining module 420, in which:
Judgment module 410 is for determining the corresponding initial modulation coding mode of the downlink logical channel of base station scheduler schedules
Whether MCS meets the first preset condition.
If determining module 420 for meeting the first preset condition, according to determining transport block size TBSize and described
Downlink logical channel needs the data volume BSRx dispatched to determine the MCS finally dispatched.
The dispatching device of the LTE system of the present embodiment is used to execute the dispatching method of the LTE system of the various embodiments described above,
Technical principle is similar with the technical effect of generation, and which is not described herein again.
On the basis of the various embodiments described above, the determining module 420 is specifically used for: according to downlink logical channel type and
Corresponding media intervene control layer MAC subheader expense, determine the data volume BSRx that the downlink logical channel needs to dispatch.
On the basis of the various embodiments described above, the determining module 420 is also used to: according to downlink logical channel type definition
The expense of the MAC subheader.
On the basis of the various embodiments described above, the determining module 420 is specifically used for: if the downlink logical channel is wide
Broadcast Control BCCH channel or paging control channel (PCCH) do not increase MAC subheader expense then, otherwise increase MAC of preset byte
Header overhead.
On the basis of the various embodiments described above, the determining module 420 is specifically used for: true according to downlink logical channel type
Fixed corresponding MAC subheader expense；Determine the data volume being stored in buffer area that the downlink logical channel needs to dispatch；By institute
State what the adduction of MAC subheader expense and the data volume being stored in buffer area was dispatched as downlink logical channel needs
Data volume BSRx.
On the basis of the various embodiments described above, the determining module 420 is specifically used for: according to downlink logical channel type and
The corresponding initial MCS distributes resource block RB number；Or, when downlink logical channel is multiple, by multiple logic channels
RB number adduction will be summed it up as the RB number for being finally scheduled to terminal；It is determined according to determining RB number and the initial MCS
Transport block size TBSize.
The RB number of the determination is the integral multiple of resource block group RBG size predetermined.
The dispatching device of LTE system provided by the various embodiments described above can be performed provided by any embodiment of the invention
The dispatching method of LTE system has the corresponding functional module of dispatching method and beneficial effect for executing LTE system.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (16)
1. a kind of dispatching method of LTE system characterized by comprising
It is default to determine whether the corresponding initial modulation coding mode MCS of the downlink logical channel of base station scheduler schedules meets first
Condition；
If meeting the first preset condition, need to dispatch according to determining transport block size TBSize and the downlink logical channel
Data volume BSRx determine the MCS that finally dispatches.
2. the method according to claim 1, wherein determining the data volume that the downlink logical channel needs to dispatch
BSRx includes:
Control layer MAC subheader expense is intervened according to downlink logical channel type and corresponding media, determines the downlink logical letter
Road needs the data volume BSRx dispatched.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
According to the expense of MAC subheader described in downlink logical channel type definition.
4. according to the method described in claim 3, it is characterized in that, the MAC according to downlink logical channel type definition
The expense of subheader includes:
If the downlink logical channel is BCCH channel of broadcast control or paging control channel (PCCH), does not increase MAC subheader and open
Otherwise pin increases the MAC subheader expense of preset byte.
5. according to the method described in claim 4, it is characterized in that, described according to downlink logical channel type and corresponding media
Control layer MAC subheader expense is intervened, the data volume BSRx for determining that the downlink logical channel needs are dispatched includes:
Corresponding MAC subheader expense is determined according to downlink logical channel type；
Determine the data volume being stored in buffer area that the downlink logical channel needs to dispatch；
It is needed the adduction of the MAC subheader expense and the data volume being stored in buffer area as the downlink logical channel
The data volume BSRx to be dispatched.
6. the method according to claim 1, wherein determining that transport block size TBSize includes:
Resource block RB number is distributed according to downlink logical channel type and the corresponding initial MCS；Or, working as downlink logical channel
When being multiple, the RB number of multiple logic channels is summed it up, will be summed it up as the RB number for being finally scheduled to terminal；
Transport block size TBSize is determined according to determining RB number and the initial MCS.
7. according to the method described in claim 6, it is characterized in that, the RB number of the determination is resource block group predetermined
The integral multiple of RBG size.
8. method according to claim 1-7, which is characterized in that described according to determining transport block size
TBSize and the downlink logical channel need the data volume BSRx dispatched to determine that the MCS finally dispatched includes:
If the TBSize is less than or equal to BSRx, using the initial MCS as the MCS finally dispatched；
If the TBSize be greater than BSRx, using meet the second preset condition MCS-1 as initial MCS, repeat whether
Meet the judgement of the first preset condition.
9. a kind of dispatching device of LTE system characterized by comprising
Judgment module, the corresponding initial modulation coding mode MCS of downlink logical channel for determining base station scheduler schedules are
The first preset condition of no satisfaction；
Determining module, if being patrolled for meeting the first preset condition according to determining transport block size TBSize and the downlink
Collecting channel needs the data volume BSRx dispatched to determine the MCS finally dispatched.
10. device according to claim 9, which is characterized in that the determining module is specifically used for:
Control layer MAC subheader expense is intervened according to downlink logical channel type and corresponding media, determines the downlink logical letter
Road needs the data volume BSRx dispatched.
11. device according to claim 10, which is characterized in that the determining module is also used to:
According to the expense of MAC subheader described in downlink logical channel type definition.
12. device according to claim 11, which is characterized in that the determining module is specifically used for:
If the downlink logical channel is BCCH channel of broadcast control or paging control channel (PCCH), does not increase MAC subheader and open
Otherwise pin increases the MAC subheader expense of preset byte.
13. device according to claim 12, which is characterized in that the determining module is specifically used for:
Corresponding MAC subheader expense is determined according to downlink logical channel type；Determine what the downlink logical channel needed to dispatch
The data volume being stored in buffer area；The adduction of the MAC subheader expense and the data volume being stored in buffer area is made
The data volume BSRx dispatched is needed for the downlink logical channel.
14. device according to claim 9, which is characterized in that the determining module is specifically used for:
Resource block RB number is distributed according to downlink logical channel type and the corresponding initial MCS；Or, working as downlink logical channel
When being multiple, the RB number of multiple logic channels is summed it up, will be summed it up as the RB number for being finally scheduled to terminal；According to determination
RB number and the initial MCS determine transport block size TBSize.
15. device according to claim 14, which is characterized in that the RB number of the determination is resource block predetermined
The integral multiple of group RBG size.
16. according to the described in any item devices of claim 9-15, which is characterized in that the determining module is specifically used for:
If the TBSize is less than or equal to BSRx, using the initial MCS as the MCS finally dispatched；
If the TBSize be greater than BSRx, using meet the second preset condition MCS-1 as initial MCS, repeat whether
Meet the judgement of the first preset condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497973.4A CN109151853A (en) | 2017-06-27 | 2017-06-27 | A kind of dispatching method and device of LTE system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497973.4A CN109151853A (en) | 2017-06-27 | 2017-06-27 | A kind of dispatching method and device of LTE system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109151853A true CN109151853A (en) | 2019-01-04 |
Family
ID=64804764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710497973.4A Pending CN109151853A (en) | 2017-06-27 | 2017-06-27 | A kind of dispatching method and device of LTE system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109151853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112911636A (en) * | 2019-12-04 | 2021-06-04 | 华为技术有限公司 | Data processing method and related device |
| WO2023045903A1 (en) * | 2021-09-27 | 2023-03-30 | 华为技术有限公司 | Data transmission method and apparatus, and device |
-
2017
- 2017-06-27 CN CN201710497973.4A patent/CN109151853A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112911636A (en) * | 2019-12-04 | 2021-06-04 | 华为技术有限公司 | Data processing method and related device |
| WO2021109792A1 (en) * | 2019-12-04 | 2021-06-10 | 华为技术有限公司 | Data processing method and related apparatus |
| US12063542B2 (en) | 2019-12-04 | 2024-08-13 | Huawei Technologies Co., Ltd. | Data processing method and related apparatus |
| WO2023045903A1 (en) * | 2021-09-27 | 2023-03-30 | 华为技术有限公司 | Data transmission method and apparatus, and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110574325B (en) | Apparatus for determining priority order based on uplink transmission parameters and method thereof | |
| CN102917463B (en) | Method, base station and user equipment for transmitting dispatching information | |
| CN101902817B (en) | Uplink radio resource dispatching method and device for wireless communication system | |
| CN102149206B (en) | Uplink dispatch method | |
| CN102282896B (en) | Method and apparatus for scheduling data transmission on multiple carriers | |
| CN101621369B (en) | Method of performing packet transmission and priority, and relevant apparatus thereof | |
| CN102123512A (en) | Method and apparatus for logical channel prioritization for uplink carrier aggregation | |
| CN102291760B (en) | Method, system and equipment for reporting and confirming buffer memory state information | |
| CN102036390A (en) | Method for processing priority | |
| CN110402608A (en) | The system and method for enhancing scheduling request for 5G NR | |
| CN102104974A (en) | Method, device and system for carrying out uplink pre-scheduling processing | |
| CN110149661A (en) | Channel transmission method and device, the network equipment and computer readable storage medium | |
| CN105659683A (en) | System and Method for Setting Cyclic Prefix Length | |
| CN101340715A (en) | High-speed packet access method of multi-carrier time division synchronous code division multiple access system | |
| CN101335979A (en) | High-speed uplink packet access method of multi-carrier system | |
| CN110324902A (en) | Communication means, communication device and system | |
| CN102970763B (en) | Resource scheduling method and device based on service qualities | |
| CN102404862B (en) | Method for PDCCH (Physical Downlink Control Channel) resource allocation in LTE (Long Term Evolution) system | |
| US20120170526A1 (en) | Carrier aggregation method and device for LTE system | |
| CN101741707A (en) | Uplink data transmission method, device and communication system | |
| CN106561066A (en) | Method and device for reducing network delay in wireless communication | |
| CN101098295B (en) | High speed downlink packet accessing medium access controlled multi-queue transmission method and device | |
| CN109151853A (en) | A kind of dispatching method and device of LTE system | |
| CN104994588B (en) | A kind of GMR-1 3G terminal RLC/MAC data dispatching method | |
| CN112953749A (en) | Transmission rate configuration method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |