CN103313276B - The method and apparatus of cell blind Detecting - Google Patents
The method and apparatus of cell blind Detecting Download PDFInfo
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- CN103313276B CN103313276B CN201310090180.2A CN201310090180A CN103313276B CN 103313276 B CN103313276 B CN 103313276B CN 201310090180 A CN201310090180 A CN 201310090180A CN 103313276 B CN103313276 B CN 103313276B
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Abstract
The present invention proposes a kind of method and apparatus of cell blind Detecting, this method is included to one or more of broadcast frequency progress down link pilot timeslot DwPTS correlations, so as to obtain one or more DwPTSs of the strength of correlation more than a certain threshold value for each frequency；And each in one or more of DwPTS for being obtained, the most strong MA of selection signal quality in its training sequence included MA, using cell corresponding with the MA that the signal quality is most strong as candidate cell.By this method, the strong cell of these necessary beings in environment can be found out in time, so as to realize that co-channel interference eliminates and will improve the accuracy of the demodulation performance received and measurement.In addition, the strong inter-frequency interference cell found can also be configured to by the present invention in channel estimation, so as to improve the accuracy of cell measurement results.And the interfered cell of common signal channel reception is carried out using the cell detected, it is possible to increase the demodulation performance of the common signal channel such as BCH/FACH.
Description
The cross reference of related application
This application claims the priority for the 61/611st, No. 397 U.S. Provisional Application submitted on March 15th, 2012, its
Disclosure is fully incorporated in this by reference.
Technical field
Embodiments of the present invention are related to the communications field, more particularly, to the cell blind Detecting in TD-SCDMA
(DCM)。
Background technology
With the high speed development of the communication technology, especially mobile communication technology, the application of mobile device is more and more extensive, by
This causes cell detection problem also to have become the focus and focus of moving communicating field.In cell detection, due to outfield net
Network optimization problem, in some cases network may not by all strong co-frequency cells under some frequency be placed on system message or
Person is measured in control message.So, on TD-SCDMA TS0 will by from these not in network configuration cell list
The co-channel interference of cell；These interference can cause receiving signal demodulation degradation, while under corresponding frequency on cell measurement
Inaccuracy occurs.
The content of the invention
In order to solve the above problems, according to an aspect of the present invention, a kind of method of cell blind Detecting is proposed, including：
It is related that down link pilot timeslot DwPTS is carried out to one or more of broadcast frequency, so as to obtain phase for each frequency
Closing property intensity exceedes one or more DwPTS of a certain threshold value；For each in one or more of DwPTS for being obtained
It is individual, the most strong MA of selection signal quality in its training sequence included MA, by MA couples most strong with the signal quality
The cell answered is as candidate cell.
In the optional realization of the present invention, also included obtaining related timing according to the method for the cell blind Detecting of the present invention
The step of at least one of information and automatic growth control AGC information.
In the optional realization of the present invention, carried out automatically in physical layer according to the method for the cell blind Detecting of the present invention.
In the optional realization of the present invention, periodically carried out according to the method for the cell blind Detecting of the present invention.In the present invention
Further optional realization in, in addition to the length in the cycle determined according to the change of network environment.
According to another aspect of the invention, it is proposed that a kind of device of blind cell detection, including：Relevant apparatus, it is configured as
It is related that down link pilot timeslot DwPTS is carried out to one or more of broadcast frequency, so as to obtain phase for each frequency
Closing property intensity exceedes one or more DwPTS of a certain threshold value；Cell determining device, it is configured as being directed to described one obtained
Each in individual or multiple DwPTS, the most strong MA of selection signal quality in its training sequence included MA will be with institute
Cell corresponding to the most strong MA of signal quality is stated as candidate cell.
In the optional realization of the present invention, information acquisition device is also included according to the device of the cell blind Detecting of the present invention,
It is configured as obtaining at least one of related timing information and automatic growth control AGC information.
In the optional realization of the present invention, according to the device of the cell blind Detecting of the present invention in physical layer automatic running.
In the optional realization of the present invention, it is periodically run according to the device of the cell blind Detecting of the present invention.
In the optional realization of the present invention, cycle determination device is also included according to the device of the cell blind Detecting of the present invention,
It is configured as determining the length in the cycle according to the change of network environment.
According to various aspects of the invention, cell blind Detecting is periodically carried out by physical layer, to find out ring in time
The strong cell of these necessary beings in border, carry out co-channel interference elimination；So, the standard of the demodulation performance received and measurement will be improved
True property.In addition, also the strong inter-frequency interference cell found is configured in channel estimation according to each realization of the present invention, so as to
The accuracy of cell measurement results can be improved.Also, it is small to carry out the interference of common signal channel reception using the cell detected
Area, it is possible to increase the demodulation performance of the common signal channel such as BCH/FACH.
Brief description of the drawings
Fig. 1 is the physical layer frame structure of TD-SCDMA system；
Fig. 2 is the example format of DwPTS (Downlink Pilot Time Slot, down link pilot timeslot)；
Fig. 3 shows the method 300 that blind Detecting is carried out to cell according to one embodiment of the present invention；
Fig. 4 shows the block diagram of the device 400 that blind Detecting is carried out to cell according to an embodiment of the invention；With
And
Fig. 5 is the structural representation according to the mobile device (e.g., smart mobile phone) of one embodiment of the present invention.
Embodiment
For ease of understanding the present invention, illustrate the physical layer frame structure of TD-SCDMA system with reference to Fig. 1 and Fig. 2 first.Wherein,
Fig. 1 is the physical layer frame structure of TD-SCDMA system, and Fig. 2 is DwPTS example format.
The TDMA frame length that 3GPP is defined is 10ms.TD-SCDMA for realize fast power control and timing advance compared with
It is accurate and employ new technology (smart antenna etc.), 10ms frame is divided into two completely identical in structure subframes, the frame length of subframe
It is as shown in Figure 1 for 5ms, its structure：Each subframe is by three special time slots (DwPTS, GP, UpPTS) and 7 regular time slots
(TS0-TS6) form, DwPTS and UpPTS are used separately as down-going synchronous and uplink synchronous, do not carry user data.Such as Fig. 2 institutes
Show, DwPTS time slot includes two parts：64chips descending synchronous code SYNC_DL and 32chips protection interval GP.
DwPTS duration is 75us, the protection for downstream-to-upstream conversion.UpPTS time slot includes 128chips uplink synchronous
The protection interval of code and 32chips.GP is used as the propagation delay protection during uplink synchronous, common 96chips；Regular time slots
(TS0-TS6) it is used as transmission user data and control information, what TS0 was fixed believes as descending time slot transmission broadcast message with control
Breath, what TS1 was fixed is used as ascending time slot.Other regular time slots (TS2-TS6) can be configured to upstream or downstream according to demand
To support asymmetry business, the structure of time slot of regular time slots divide into four domains, two data fields, a training sequence
(midamble, referred to as " MA ") domain and a protection interval for being used as time slot protection.
No matter actually symmetry business or asymmetry business, DwPTS and UpPTS position are fixed, in
Between only protection interval GP (96chips), the transmission power that uplink synchronous is so carried out according to downlink synchronous signal intensity setting
It is proper to put, because the possibility very little of the change of signal intensity therebetween.
TD_SCDMA Physical Frame Structure and DwPTS example format are illustrated above, below in conjunction with shown in Fig. 3
Method 300 according to the cell blind Detecting DCM of the present invention come to being described.
After method 300 starts, step S302 is entered first, and DwPTS phases are carried out to one or more of broadcast frequency
Close, so as to obtain one or more DwPTSs of the strength of correlation more than a certain threshold value for each frequency.Those skilled in the art
, it should be understood that step 1) can for example be included by carrying out the related steps of DwPTS in step S202 to one or more of broadcast frequency
According to the frequency point information of Web broadcast, current DCM frequency point information tables are generated；Step 2) is to each in DCM frequency point information tables
Frequency does DwPTS correlations respectively, chooses top n DwPTS (this N number of DwPTS correlations that may be present according to certain algorithmic rule
Property intensity should generally exceed a certain threshold value, to ensure it as effective DwPTS.Threshold value can be empirical value, can also be by being
System or user's setting)；And step 3) obtains the information such as related timing (timing), AGC (Auto Gain Control).
Next, method 300 enters step S304, for each in one or more DwPTS for being obtained, at it
Comprising training sequence MA in the most strong MA of selection signal quality, cell corresponding with the MA that the signal quality is most strong is made
For candidate cell.
Specifically, due to corresponding to a DwPTS in TD-SCDMA system be 4 candidates MA, one kind is realized logical
Often include the 4*N MA found under each frequency corresponding to all DwPTS extracting one cell blind Detecting of generation
Candidate cell information table；Then MA421 mistakes are carried out in same frame to all MA for belonging to same frequency in candidate cell information table
Journey, Signal quality assessment then is carried out to belonging to lower 4 MA of same DL, most what a cell selected.Thus find out some
N number of cell is there may be under frequency.
So far, method 300 terminates.
It should be noted that abovementioned steps S302 to S304 is that each frequency is carried out, so as to complete frequency
The cell blind Detecting of all frequencies in point information table.In addition, in the preferred implementation of the present invention, method 300 is in physics
(automatic) progress of layer.
It is according to periodic schedule in DCM scheduling in the preferred implementation of the present invention.Because its arrangement also occupies
TSO, DwPTS resource, and the measurement in TD systems and timing synchronization process may be carried out on the two time slots.When with TD systems
When measurement arrangement has time slot collision in system, flexible strategy dynamic adjustment priority can be used under various scenes.It is and right
It can support dynamically to be adjusted in design dispatching cycle in DCM, mainly consider that user may move in a small range here
It is dynamic, it is also possible to the situation that High-speed Circumstance quickly moves.But generally speaking, because DCM measurement periods can be unlike in TD systems
Arrange local area or nearby region measurement arrangement so frequent.Therefore the change before and after local area signal receiving quality is for example may be referred to enter
Row is certainly adjudicated：
If 1) find that ambient network environmental change is violent, promptly start cell blind Detecting, while shorten its cycle.
2) if it find that ambient network environment is more stable, its cycle can be increased.
The advantages of above-mentioned variable cycle practice, is to be advantageous to standby lower power saving, because DCM arrangements after all can be to system band
Carry out extra expense.It will be understood by those skilled in the art that the practice of the variable cycle is only a preferred exemplary, and not as right
The limitation of various aspects of the present invention.
By the present invention, the strong inter-frequency interference cell found is configured in channel estimation, so as to improve cell
The accuracy of measurement result.Also, the interfered cell of common signal channel reception is carried out using the cell detected, it is possible to increase
The demodulation performance of the common signal channels such as BCH/FACH.
Further describe and shown according to an embodiment of the invention to cell progress blind check referring next to Fig. 4
The block diagram of the device 400 of survey.As shown in figure 4, device 400 includes：Relevant apparatus 401, be configured as to one in broadcast or
Multiple frequencies carry out down link pilot timeslot DwPTS correlations, a certain so as to exceed for each frequency acquisition strength of correlation
One or more DwPTS of threshold value, and cell determining device 402, it is configured as one or more of for being obtained
Each in DwPTS, the most strong MA of selection signal quality in its training sequence included MA will be with the signal matter
Cell is as candidate cell corresponding to the most strong MA of amount.
In the optional realization of the present invention, device 400 also includes information acquisition device 403, is configured as obtaining correlation
At least one of timing information and automatic growth control AGC information.
In the optional realization of the present invention, device 400 can be in physical layer automatic running.
In the optional realization of the present invention, device 400 is periodically run.
In the optional realization of the present invention, device 400 also includes cycle determination device 404, is configured as according to network rings
Border changes to determine the length in the cycle.
Fig. 5 is the structural representation according to the mobile device (e.g., smart mobile phone) of one embodiment of the present invention.However,
It should be appreciated that only it is the one kind that will be benefited from exemplary embodiment of the invention with mobile phone described below as shown in the figure
The example of mobile device, and it is not limited to the scope of exemplary embodiment of the invention.Although illustrate for example purposes
Several embodiments of mobile device 10, but for example portable digital assistant (PDA), pager, mobile TV, game are set
Standby, laptop computer, camera, video recorder, audio/video player, radio, GPS device or aforementioned means it is any
The other kinds of mobile device and other kinds of voice and text communications systems of combination etc can be easily with these
Invention illustrative embodiments.
In addition, although mobile device 10 can use several embodiments of the inventive method, but except mobile device
Outside device can also use exemplary embodiment of the invention method.In addition, though should mainly in combination with mobile communication
With the method and apparatus for describing exemplary embodiment of the invention, it is understood, however, that can in mobile communications industry and
Beyond mobile communications industry the method and apparatus of exemplary embodiment of the invention is utilized with reference to various other applications.
Mobile device 10 can include (or multiple with an antenna 12 of 16 operable communication of transmitter 14 and receiver
Antenna).Mobile device 10 can also include providing signal and the device from the reception signal of receiver 16, example to transmitter 14 respectively
Such as controller 20 or other processing units.Signal includes the signaling information according to applicable cellular system air-interface standard, also
Including user speech, the data received and/or the data generated by user.In this regard, mobile device 10 can utilize
One or more air-interface standard, communication protocol, modulation type and access style operate.For example, mobile device
10 can grasp according to any communication protocol in the communication protocols such as multiple first generation, the second generation, the third generation and/or forth generation
Make.For example, mobile device 10 can according to the second generation (2G) wireless communication protocol IS-136 (time division multiple acess (TDMA)),
GSM (global system for mobile communications) and IS-95 (CDMA (CDMA)) or according to such as Universal Mobile Telecommunications System
(UMTS), CDMA2000, wideband CDMA (WCDMA) and the third generation (3G) as time division-synchronous CDMA (TD-SCDMA) are wireless
Communication protocol, according to the 3.9th generation (3.9G) wireless communication protocol such as Evolved Universal Terrestrial radio access network (E-UTRAN),
Operated according to forth generation (4G) wireless communication protocol etc..Replace (or in addition), and mobile device 10 can
Operated according to non-cellular communication mechanisms.For example, mobile device 10 can be in WLAN (WLAN) or other are logical
Communicated in communication network.In addition, mobile device 10 for example can communicate according to following technology, these technologies are, for example, radio frequency
(RF), infrared ray (IrDA) or multiple different radio networking technologies (including WLAN technologies such as IEEE802.11 (such as
802.11a, 802.11b, 802.11g, 802.11n etc.), World Interoperability for Microwave Access, WiMax (WiMAX) technology such as
IEEE802.16 and/or wireless personal domain network (WPAN) technology such as IEEE802.15, bluetooth (BT), ultra wide band (UWB) and/
Or similar techniques) in any technology.
It is appreciated that device can include the audio and logic function for implementing mobile device 10 for example as controller 20
Required circuit.Arrived for example, controller 20 can include digital signal processor device, micro processor device and various simulations
Digital quantizer, digital-to-analog converter and other support circuits.
In one embodiment, micro processor device is one piece of double frequency or multifrequency CPU.Startup mould based on user's selection
Formula, the double frequency or multifrequency CPU can be operated in corresponding frequency.In another embodiment, micro processor device is one piece
The higher host CPU of working frequency and the relatively low auxiliary CPU of one piece of working frequency.Based on the start-up mode of user's selection, or the master
CPU works, or the auxiliary CPU work.
The control of mobile device 10 and signal processing function distribute according to their respective capabilities among these devices.
Therefore controller 20 can also be included to carry out convolutional encoding and the work(to interweave to message and data before modulation and transmission
Energy.Controller 20 can also include internal voice coder and can include internal data modem.In addition, controller
20 can be included to operate the function for one or more software program that can be stored in memory.For example, controller
20 can operable communication program, such as conventional web browsers.Connectivity program can then allow for such as root of mobile device 10
Web content is sent and received according to WAP (WAP), HTTP (HTTP) and/or similar agreement, such as
Location-based content and/or other web page contents.
Mobile device 10 can also include user interface, and the output that the user interface includes being all connected to controller 20 is set
Standby such as regular headset or loudspeaker 24, ringer 22, microphone 26, display 28 and user input equipment.Movement is allowed to set
Any in the multiple equipment that the user input interfaces of standby 10 reception data can include allowing mobile device 10 to receive data sets
It is standby, such as input equipment (e.g., keypad) 30, touch display (not shown) and other input equipments.Including keypad 30
Embodiment in, keypad 30 can include conventional numeric (0-9) and have key (#, *) and for operating mobile device
10 other hardkeys and soft key.Replace, keypad 30 can include conventional QWERTY keypad and arrange.Keypad 30 also may be used
With including the various soft keys with correlation function.Additionally or alternatively, mobile device 10 can also be set including interface
Standby such as control stick or other users input equipment.Mobile device 10 also includes being used to need in order to operate mobile device 10
The power supply of various circuits and optionally provide battery 34 of the mechanical oscillation as detectable output, such as vibrating battery bag.
Mobile device 10 can also include Subscriber Identity Module (UIM) 38.UIM38 is usually depositing with internal processor
Storage device.UIM38 can be for example including Subscriber Identity Module (SIM), Universal Integrated Circuit Card (UICC), Universal Subscriber Identity
Module (USIM), detachable Subscriber Identity Module (R-UIM) etc..UIM38 is commonly stored the cell relevant with mobile subscriber.Except
Outside UIM38, mobile device 10 may be fitted with memory.For example, mobile device 10 can include volatile memory 40,
Such as the volatile random access memory (RAM) including the cache area for temporary transient data storage.Mobile device 10
It can also include being embedded in and/or other demountable nonvolatile memories 42.Additionally or alternatively,
Nonvolatile memory 42 can also include Electrically Erasable Read Only Memory (EEPROM), flash memory etc., such as can be from adding
The non-volatile memories that the SanDisk Corporation in state Sani Wei Er cities or the Lexar Media companies in California Fei Limeng cities obtain
Device.Memory can be stored by mobile device 10 for any in a plurality of information and data of the function of implementing mobile device 10
Information and data.For example, memory can include the identifier that can uniquely identify mobile device 10, such as international movement is set
Standby mark (IMEI) code, and can also by the neighboring mobile of reception current time position and the current time with
The unique mark associated storage of neighbouring device.Specifically, memory can store the application journey for being performed by controller 20
Sequence, the controller determine the current location of mobile device 10.
Mobile device 10 can also include the alignment sensor 36 to be communicated with controller 20, such as global positioning system
(GPS) module.Alignment sensor 36 can be for putting any device of determination, equipment to the line position that is positioned into of mobile device 10
Or circuit.Alignment sensor 36 can include being used for all hardware for being positioned into line position and putting determination to mobile device 10.It is standby
Selection of land or additionally, alignment sensor 36 can store what is performed for controller 20 using the memory devices of mobile device 10
Instruction, its storage form are to determine the software needed for the position of mobile device 10.Although the alignment sensor 36 of this example can
To be GPS module, but alignment sensor 36 can include or be alternatively implemented as such as assisted global alignment system (auxiliary
GPS) sensor or location client end, the assistant GPS sensor or location client end can with the network equipment as aerial or
The communication of person's ground transaucer with receive and/or send for it is determined that mobile device 10 positioning when the information that uses.With regard to this
For point, the positioning of mobile device 10 can also be true by GPS as described above, cell ID, signal triangulation or other mechanism
It is fixed.In an example embodiment, alignment sensor 36 includes pedometer or inertial sensor.So, alignment sensor
36 may be able to determine that mobile device 10 for example using the longitude of mobile device 10 and dimension direction and short transverse as reference
Position is either relative to the positioning of reference point such as target point or starting point.Then the information that level sensor 36 can be made by oneself in the future passes
The memory of mobile device 10 or another memory devices are delivered to, to be stored as position history or positional information.In addition,
Alignment sensor 36 can send/receiving position information using controller 20 via the receiver 16 of transmitter 14/, such as
The positioning of mobile device 10.Mobile device 10 can also include light sensor.
Block diagram described in Fig. 5 shows just to the purpose of example, is not limitation of the present invention.
Under certain situation, some of which equipment can be added as needed on or reduced.
Although describe the present invention by reference to some embodiments, it should be appreciated that, the present invention is not limited to
Disclosed embodiment.It is contemplated that cover various modifications included in spirit and scope of the appended claims
And equivalent arrangements.Scope of the following claims meets broadest explanation, so as to include all such modifications and equivalent knot
Structure and function.
Claims (10)
1. a kind of method of cell blind Detecting, including：
It is related that down link pilot timeslot (DwPTS) is carried out to one or more of broadcast frequency, so as to be directed to each frequency
Obtain one or more DwPTS that strength of correlation exceedes a certain threshold value；
For each in one or more of DwPTS for being obtained, selected in the training sequence (MA) that it is included
The most strong MA of signal quality, using cell corresponding with the MA that the signal quality is most strong as candidate cell.
2. according to the method for claim 1, include the timing information and automatic growth control (AGC) information of acquisition correlation
At least one of.
3. according to the method for claim 1, wherein, methods described is carried out automatically in physical layer.
4. according to the method for claim 1, wherein, methods described is periodically carried out.
5. changing to determine the length in the cycle according to the method for claim 4, in addition to according to network environment.
6. a kind of device of cell blind Detecting, including：
Relevant apparatus, it is configured as carrying out one or more of broadcast frequency down link pilot timeslot DwPTS correlations, from
And obtain one or more DwPTSs of the strength of correlation more than a certain threshold value for each frequency；
Cell determining device, each being directed in the one or more of DwPTS obtained is configured as, is included at it
Training sequence MA in the most strong MA of selection signal quality, using cell corresponding with the MA that the signal quality is most strong as waiting
Select cell.
7. device according to claim 6, in addition to information acquisition device, be configured as obtaining related timing information and
At least one of automatic growth control AGC information.
8. device according to claim 6, wherein, described device is in physical layer automatic running.
9. device according to claim 6, wherein, described device is periodically run.
10. device according to claim 9, in addition to cycle determination device, are configured as the change according to network environment
To determine the length in the cycle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261611397P | 2012-03-15 | 2012-03-15 | |
| US61/611,397 | 2012-03-15 |
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| CN103313276A CN103313276A (en) | 2013-09-18 |
| CN103313276B true CN103313276B (en) | 2018-03-20 |
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| CN105338543B (en) * | 2014-08-08 | 2018-09-04 | 中国移动通信集团公司 | Method, apparatus, system and the relevant device of network assistance terminal blind examination |
| MX2018007565A (en) | 2016-01-22 | 2018-09-21 | Ericsson Telefon Ab L M | Methods and arrangements for managing information about signal quality and/or signal strength received by a wireless device in a downlink. |
| EP3577968B1 (en) * | 2017-01-31 | 2021-10-13 | Nokia Solutions and Networks Oy | Base station efficiency control based on load counters |
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| CN1578485A (en) * | 2003-07-28 | 2005-02-09 | 凯明信息科技股份有限公司 | Automatic correcting frequency method for time-division radio communication system and apparatus thereof |
| CN101056139A (en) * | 2007-05-24 | 2007-10-17 | 重庆重邮信科（集团）股份有限公司 | Method for realizing the downlink rough synchronization in the initial search process of TD-SCDMA system cell |
| CN101674103A (en) * | 2008-07-18 | 2010-03-17 | 俊茂微电子（上海）有限公司 | An automatic-frequency correction equipment, method and radio communication device |
| EP2259470A2 (en) * | 2005-08-26 | 2010-12-08 | Qualcomm Incorporated | Method and apparatus for reliable signalling in wireless communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8831119B2 (en) * | 2010-06-28 | 2014-09-09 | Lg Electronics Inc. | Method and apparatus for transmitting synchronization signal in multi-node system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1578485A (en) * | 2003-07-28 | 2005-02-09 | 凯明信息科技股份有限公司 | Automatic correcting frequency method for time-division radio communication system and apparatus thereof |
| EP2259470A2 (en) * | 2005-08-26 | 2010-12-08 | Qualcomm Incorporated | Method and apparatus for reliable signalling in wireless communication |
| CN101056139A (en) * | 2007-05-24 | 2007-10-17 | 重庆重邮信科（集团）股份有限公司 | Method for realizing the downlink rough synchronization in the initial search process of TD-SCDMA system cell |
| CN101674103A (en) * | 2008-07-18 | 2010-03-17 | 俊茂微电子（上海）有限公司 | An automatic-frequency correction equipment, method and radio communication device |
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Effective date of registration: 20200429 Address after: Singapore City Patentee after: Marvell Asia Pte. Ltd. Address before: Ford street, Grand Cayman, Cayman Islands Patentee before: Kaiwei international Co. Effective date of registration: 20200429 Address after: Ford street, Grand Cayman, Cayman Islands Patentee after: Kaiwei international Co. Address before: Hamilton, Bermuda Patentee before: Marvell International Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20210313 |