CN103369644A - Terminal awakening method and device - Google Patents
Terminal awakening method and device Download PDFInfo
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- CN103369644A CN103369644A CN2013100901573A CN201310090157A CN103369644A CN 103369644 A CN103369644 A CN 103369644A CN 2013100901573 A CN2013100901573 A CN 2013100901573A CN 201310090157 A CN201310090157 A CN 201310090157A CN 103369644 A CN103369644 A CN 103369644A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
Embodiments of the present invention disclose a terminal awakening method and a device. The method comprises setting a time slot interruption at the last time slot of a previous subframe of a subframe that is under listening and paging; awakening the terminal during the time slot interruption so as to prepare for the monitoring and paging. According to one embodiment of the present invention, a wake-up point is disposed in the last time slot of the actually received previous subframe, so that the power consumed during a period from the first time slot to the last time slot is saved, and the terminal can at least sleep longer by a period of one subframe, and an aim for electric power saving is effectively fulfilled.
Description
The cross reference of related application
The application requires the priority of the 61/617th, No. 544 U.S. Provisional Application submitting on March 29th, 2012, and its disclosure mode by reference all is incorporated into this.
Technical field
The embodiments of the present invention relate to wireless communication technology field, and relate more specifically to the terminal wake-up method and apparatus.
Background technology
In TD SDMA (TD-SCDMA) system, when subscriber equipment (UE) rests on idle condition (IDLE), need to monitor paging in the cycle at each discontinuous reception (DRX), and when not needing to receive, the UE sleep is to save power consumption.Therefore, power consumption depends on the length of one's sleep in certain program.
Fig. 1 has shown the frame structure of TD-SCDMA system.As shown in Figure 1, constantly repeat take the 5ms subframe as cycle period on the time, and each subframe inside is divided into seven normal time slots (time slot 0 is to time slot 6) and three special time slots.
In the TD-SCDMA system, UE can go to monitor paging at each DRX cycle under IDLE, looks into the paging that sees if there is oneself, and idiographic flow as shown in Figure 2.
Under IDLE, UE at first goes out needs in the position that Page Indication Channel (PICH) and paging channel (PCH) receive according to the associated information calculation of this UE, is shown respectively PICH position and PCH position in Fig. 2.Then, receive according to respective rule at corresponding frame number.For example, if current frame number SFN is the PICH position, then receive at PICH.If listen to effective paging at PICH, then when current SFN is the PCH position, receive at PCH.The process that UE monitors paging circulates according to DRX cycle.Fig. 3 has shown that UE monitors the sequential of paging at each DRX cycle.
Usually, UE opens radio frequency, recovers to interrupt in the frame interruption position (namely this subframe begins the place) of the last subframe of the subframe of needs monitoring paging, to carry out the preparation of monitoring paging.And in the subframe of monitoring, UE does not often probably have other tasks in the time except carrying out PICH and PCH reception.In fact and be unfavorable for power saving at this moment, if in a subframe, all open radio frequency, open interruption.
Summary of the invention
For the defective of prior art, embodiments of the present invention provide a kind of terminal wake-up method and apparatus.
According to an aspect of the present invention, provide a kind of terminal wake-up method.The method comprises: at last time slot of the last subframe of the subframe that will monitor paging time slot is set and interrupts; And in interrupting, wakes up this time slot in order to prepare for monitoring paging.
In one embodiment, the paging that monitor is the paging on Page Indication Channel or the paging channel.
In one embodiment, interrupt will time slot being set at last time slot of last subframe that Page Indication Channel is monitored the subframe of paging; And in interrupting, wakes up this time slot in order to prepare for monitoring paging at Page Indication Channel.
In one embodiment, if listen to effective paging at Page Indication Channel, then determine and to monitor paging in paging channel; If satisfy the sleep condition in the time on the Page Indication Channel and between paging channel is monitored, then enter sleep, and interrupt will time slot being set at last time slot of last subframe that paging channel is monitored the subframe of paging; And in interrupting, wakes up this time slot in order to prepare for monitoring paging in paging channel.
According to another aspect of the present invention, provide a kind of terminal wake-up equipment.This equipment comprises: interrupt setting device, be configured to last time slot in the last subframe of the subframe that will monitor paging and time slot is set interrupts; And Rouser, be configured in this time slot interrupts, wake up in order to prepare for monitoring paging.
In one embodiment, interrupting setting device is configured to interrupt will time slot being set at last time slot of last subframe that Page Indication Channel is monitored the subframe of paging; And Rouser is configured to wake up in this time slot interrupts in order to prepare for monitoring paging at Page Indication Channel.
In one embodiment, this equipment also comprises definite device and sleeping apparatus.If determine that device is configured to listen to effective paging at Page Indication Channel, then determine and to monitor paging in paging channel; And if sleeping apparatus is configured to satisfy the sleep condition in the time on the Page Indication Channel and between paging channel is monitored, then enter sleep.
In one embodiment, interrupting setting device also is configured to interrupt will time slot being set at last time slot of last subframe that paging channel is monitored the subframe of paging; Rouser also is configured to wake up in this time slot interrupts in order to prepare for monitoring paging in paging channel.
According to the embodiment of the present invention, last time slot of the previous subframe that a little is arranged on actual reception of will waking up, can save the power of the time period internal consumption from first time slot to last time slot, thereby the time of the subframe of can sleeping at least reaches the power saving purpose effectively.
Description of drawings
Also with reference to following detailed description, the feature of each execution mode of the present invention, advantage and other aspects will become more obvious by reference to the accompanying drawings.In the accompanying drawings, same or analogous Reference numeral represents same or analogous element, wherein:
Fig. 1 has shown the frame structure of TD-SCDMA system;
Fig. 2 has shown that UE monitors the flow chart of paging at each DRX cycle;
Fig. 3 has shown that UE monitors the sequential of paging at each DRX cycle;
Fig. 4 has shown the flow chart according to the terminal wake-up method of an embodiment of the invention;
Fig. 5 has shown that UE interrupts waking up and monitoring the sequential of paging at the time slot 6 of the last subframe of carrying out PICH or PCH reception;
Fig. 6 has shown the block diagram according to the terminal wake-up equipment of an embodiment of the invention; And
Fig. 7 is the structural representation according to the UE of one embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are explained in more detail and illustrate.Should be understood that, drawings and the embodiments of the present invention only are used for exemplary effect, are not for restriction protection scope of the present invention.
Flow chart in the accompanying drawing and block diagram illustrate according to the method and apparatus of the various execution modes of the present invention architectural framework in the cards, function and operation.In this, each square frame in flow chart or the block diagram can represent the part of module, program segment or a code, and the part of this module, program segment or code comprises the executable instruction of one or more logic functions for realizing regulation.Also should be noted that some as alternative realization in, the function that marks in the square frame also can be according to being different from occurring in sequence of marking in the accompanying drawing.For example, in fact the square frame that two adjoining lands represent can be carried out substantially concurrently, and they also can be carried out by opposite order sometimes, and this decides according to related function.Also be noted that, each square frame in block diagram and/or the flow chart and the combination of the square frame in block diagram and/or the flow chart, can utilize the hardware based system of the special use of the function that puts rules into practice or operation to realize, perhaps can realize with the combination of specialized hardware and computer instruction.
Describe the embodiments of the present invention in detail referring to accompanying drawing.
Fig. 4 has shown the flow chart according to the terminal wake-up method 400 of an embodiment of the invention.
As shown in Figure 4, after method 400 beginning, at step S401, at last time slot of the last subframe of the subframe that will monitor paging time slot is set and interrupts.Then, at step S402, in interrupting, wakes up this time slot in order to prepare for monitoring paging.
In embodiments of the present invention, method 400 can be carried out in terminal (for example UE).
According to the embodiment of the present invention, for example in the TD-SCDMA system, UE arranges the time slot interruption at the time slot 6 of the last subframe of the subframe that the reception task is arranged.When system has task to receive, be arranged in time slot 6 interruptions of the last subframe of reception task shifting to an earlier date wake-up point.
In embodiments of the present invention, the paging that monitor for example is the paging on PICH or the PCH.
Fig. 5 has shown that UE interrupts waking up and monitoring the sequential of paging at the time slot 6 of the last subframe of carrying out PICH or PCH reception.
As shown in Figure 5, in time slot 6 positions of the last subframe of carrying out PICH or PCH reception a time slot 6 being set interrupts, in the front time slot 6 that a little is configured in the last subframe that next time receives subframe of will waking up when once sleeping interrupts, can wake up and carry out the preparation that next subframe receives in time slot 6 interruption position like this.This time point interrupts waking up having postponed 6 normal time slots and 3 special time slots than the frame that begins to locate in last subframe, nearly the time of a subframe (for example 5ms).
In embodiments of the present invention, UE arranges a time slot 6 in time slot 6 positions of the last subframe of carrying out the PICH reception and interrupts, and then these time slot 6 interruption position are waken up, and do at next frame and carry out the preparation that PICH receives.If UE listens to effective paging at PICH, then determine also will monitor paging at PCH.If current time and carry out the time of PCH between receiving and also satisfy the sleep condition, then the back to back time slot 6 that will carry out the last subframe of the subframe that follow-up PCH receives also arranges a time slot 6 and interrupts.Like this, UE wakes up and opens in advance RF, recover to interrupt having saved too the time of a subframe nearly in these time slot 6 interruption position.By that analogy, process equally at each DRX cycle, concrete sequential as shown in Figure 5.
Embodiments of the present invention are utilized the mode of waking up from sleep in time slot 6 interrupts under guaranteeing that sleep is waken up for the prerequisite of recovering the preparation reservation enough times such as radio frequency, the waken system in evening has prolonged the length of one's sleep as far as possible.Shorter or task is more and sleep chance when less, can reach the power saving purpose at the time of a subframe (for example 5ms) nearly of sleeping effectively in DRX configuration.
Fig. 6 has shown the block diagram according to the terminal wake-up equipment 600 of an embodiment of the invention.
In equipment 600, interruption setting device 601 is configured at last time slot of the last subframe of the subframe that will monitor paging the time slot interruption is set.Rouser 602 is configured to wake up in this time slot interrupts in order to prepare for monitoring paging.
In one embodiment, interrupting setting device 601 is configured to interrupt will time slot being set at last time slot of last subframe that PICH monitors the subframe of paging.Rouser 602 is configured to wake up in this time slot interrupts in order to prepare for monitoring paging at PICH.
In one embodiment, equipment 600 also comprises definite device 603 and sleeping apparatus 604.If determine that device 603 is configured to listen to effective paging at PICH, then determine and to monitor paging at PCH.If sleeping apparatus 604 is configured to satisfy the sleep condition in the time on the PICH and between PCH monitors, then enter sleep.And, interrupt setting device 601 and also be configured to interrupt will time slot being set at last time slot of last subframe that PCH monitors the subframe of paging.Rouser 602 also is configured to wake up in this time slot interrupts in order to prepare for monitoring paging at PCH.
Should be appreciated that each device in the equipment 600 is corresponding with each step in the method 400 of describing with reference to figure 4 respectively.Thus, the device that the operation of above describing for Fig. 4 and feature are equally applicable to equipment 600 and wherein comprise, detail repeats no more.
It is also understood that equipment 600 can realize in terminal, for example subscriber equipment (UE).
Although embodiments of the present invention as example, the invention is not restricted to this communication system with the TD-SCDMA system, but can be applied in any communication system of the time sleep that terminal can be outside receiving and dispatching operation.For example, can be applied in any communication system with the TD-SCDMA backward compatibility.
Fig. 7 is the structural representation according to the UE10 of one embodiment of the present invention.Yet, should be appreciated that as shown in the figure and mobile phone hereinafter described only is the example of the class UE that will be from exemplary embodiment of the invention be benefited, and be not used for limiting the scope of exemplary embodiment of the invention.Although illustrate several execution modes of UE10 for giving an example purpose, for example the voice of the mobile device of the other types of any combination of portable digital assistant (PDA), beep-pager, mobile TV, game station, laptop computer, camera, video tape recorder, audio/video player, broadcast receiver, GPS equipment or aforementioned means and so on and other types and text communication system can easily use exemplary embodiment of the invention.
In addition, although UE10 can use several execution modes of the inventive method, the device except UE also can use the method for exemplary embodiment of the invention.In addition, although mainly combine the method and apparatus that mobile communication application has been described exemplary embodiment of the invention, but, should be appreciated that and can in mobile communications industry and beyond mobile communications industry, should be used for utilizing the method and apparatus of exemplary embodiment of the invention in conjunction with various other.
UE10 can comprise an antenna 12 (perhaps a plurality of antennas) of operationally communicating by letter with reflector 14 and receiver 16.UE10 can also comprise respectively to reflector 14 to be provided signal and receives the device of signals from receiver 16, for example controller 20 or other processing units.Signal comprises the signaling information according to the applicable cellular system air-interface standard, also comprises the data of user speech, reception and/or the data that generated by the user.In this regard, UE10 can utilize one or more air-interface standard, communication protocol, modulation type and access style to operate.For example, UE10 can operate according to any communication protocol in the communication protocols such as a plurality of first generation, the second generation, the third generation and/or the 4th generation.For example, UE10 can be according to the second generation (2G) wireless communication protocol IS-136 (time division multiple access (TDMA)), GSM (global system for mobile communications) and IS-95 (code division multiple access (CDMA)) or according to for example Universal Mobile Telecommunications System (UMTS), CDMA2000, the third generation (3G) wireless communication protocol that wideband CDMA (WCDMA) and time-division-synchronization CDMA (TD-SCDMA) are such, according to the 3.9th generation (3.9G) wireless communication protocol such as evolved universal terrestrial radio access network (E-UTRAN), according to the 4th generation (4G) wireless communication protocol etc. operate.Replace (perhaps in addition), UE10 can operate according to non-cellular communication mechanisms.For example, UE10 can communicate by letter in WLAN (wireless local area network) (WLAN) or other communication networks.In addition, UE10 can for example communicate by letter according to following technology, and these technology are such as being any technology in radio frequency (RF), infrared ray (IrDA) or a plurality of different radio networking technology (comprising WLAN technology 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 broadband (UWB) and/or similar techniques).
Be appreciated that for example controller 20 such devices can comprise audio frequency and the required circuit of logic function of implementing UE10.For example, controller 20 can comprise digital signal processor device, micro processor device and various AD converter, digital-to-analog converter and other support circuit.
In one embodiment, micro processor device is one piece of double frequency or multifrequency CPU.Based on the start-up mode of user selection, this double frequency or multifrequency CPU can be operated on the corresponding frequency.In another embodiment, micro processor device is one piece of host CPU and one piece of auxiliary CPU that operating frequency is lower that operating frequency is higher.Based on the start-up mode of user selection, perhaps this host CPU work, perhaps this auxiliary CPU work.
The control of UE10 and the signal processing function respective capabilities according to them between these equipment is distributed.Therefore controller 20 also can comprise in order to before modulation and transmission message and data are carried out convolutional encoding and the function that interweaves.Controller 20 can also comprise internal voice coder and can comprise internal data modem.In addition, controller 20 can comprise the function that can be stored in one or more software program in the memory in order to operation.For example, controller 20 can operable communication program, for example conventional Web browser.Then connectivity program can allow UE10 for example to come the sending and receiving web content according to WAP (wireless application protocol) (WAP), HTTP (HTTP) and/or similar agreement, for example location-based content and/or other web page contents.
UE10 can also comprise user interface, and this user interface comprises output equipment such as conventional earphone or loud speaker 24, ringer 22, microphone 26, display 28 and the user input device that all is connected to controller 20.Allow user's input interface of UE10 receive data can comprise any equipment in a plurality of equipment that allow the UE10 receive data, for example input equipment (such as, keypad) 30, touch display (not shown) and other input equipments.In the execution mode that comprises keypad 30, other hardkeys and soft key that keypad 30 can comprise conventional numerical key (0-9) and key (#, *) be arranged and be used for operation UE10.Replace, keypad 30 can comprise conventional QWERTY arrangements of keypad.Keypad 30 also can comprise the various soft keys with correlation function.In addition or replace, UE10 can also comprise interface equipment such as joystick or other user input devices.UE10 also comprises for to the various circuit supplies of the needs in order to operate UE10 and the battery 34 of mechanical oscillation as detectable output, for example vibrating battery bag are provided alternatively.
UE10 can also comprise Subscriber Identity Module (UIM) 38.UIM38 is generally the memory devices with internal processor.UIM38 can be such as comprising Subscriber Identity Module (SIM), Universal Integrated Circuit Card (UICC), universal subscriber identity module (USIM), detachable Subscriber Identity Module (R-UIM) etc.UIM38 is the storage cell relevant with the mobile subscriber usually.Except UIM38, UE10 can also be equipped with memory.For example, UE10 can comprise volatile memory 40, for example comprises the volatile random access memory (RAM) for the cache area of temporary transient storage data.UE10 also can comprise and can embed and/or demountable other nonvolatile memories 42.In addition or the ground that replaces, nonvolatile memory 42 can also comprise Electrically Erasable Read Only Memory (EEPROM), flash memory etc., the nonvolatile memory that for example can obtain from the Lexar Media company in the SanDisk company in Sani Wei Er city, California or California Fei Limeng city.Memory can be stored by UE10 and be used for implementing many information of function of UE10 and any information and the data in the data.For example, memory can comprise the identifier that can identify uniquely UE10, International Mobile Station Equipment Identification (IMEI) code for example, and can be with the current time position of the adjacent UE that receives and this current moment unique identification association store with neighbouring device.Particularly, memory can be stored the application program of carrying out for by controller 20, and this controller is determined the current location of UE10.
UE10 can also comprise the alignment sensor 36 of communicating by letter with controller 20, for example global positioning system (GPS) module.Alignment sensor 36 can be for any device, equipment or the circuit that the location of UE10 are carried out location positioning.Alignment sensor 36 can comprise for all hardware that the location of UE10 is carried out location positioning.Alternatively or additionally, alignment sensor 36 can utilize the memory devices of UE10 to store the instruction of carrying out for controller 20, and its file layout is to determine the required software in position of UE10.Although the alignment sensor 36 of this example can be the GPS module, but alignment sensor 36 can comprise or alternatively be embodied as for example agps system (assistant GPS) transducer or positioning client terminal, and this assistant GPS transducer or positioning client terminal can communicate by letter to receive and/or send the information of using for when determining the location of UE10 with the network equipment such as aerial or ground transaucer.In this regard, the location of UE10 also can be by GPS, residential quarter ID, signal triangulation or other mechanism are determined as mentioned above.In an example embodiment, alignment sensor 36 comprises pedometer or inertial sensor.Like this, alignment sensor 36 can be determined for example position take the longitude of UE10 and dimension direction and short transverse as reference or with respect to the location of reference point such as impact point or starting point of UE10.Then in the future the information of self-align transducer 36 is sent to memory or another memory devices of UE10, in order to be stored as position history or positional information.In addition, alignment sensor 36 can utilize controller 20 via reflector 14/ receiver 16 sending/receiving positional informations, for example location of UE10.
UE10 can also comprise light sensor.
The described block diagram of Fig. 7 illustrates just to the purpose of example, is not to be limitation of the present invention.In some cases, can add as required or reduce wherein some equipment.
Need to prove, the disclosed method of embodiments of the present invention can realize in the combination of software, hardware or software and hardware.Hardware components can utilize special logic to realize; Software section can be stored in the memory, is carried out by suitable instruction execution system (for example microprocessor, personal computer or large-scale computer).In some embodiments, the present invention is embodied as software, and it includes but not limited to firmware, resident software, microcode etc.
And, embodiments of the present invention can also take can from computer can with or the form of the computer program of computer-readable medium access, these media provide program code to use or be combined with it for computer or any instruction execution system.For the purpose of description, computer can with or computer-readable mechanism can be any tangible device, it can comprise, storage, communication, propagation or transmission procedure to be to be used by instruction execution system, device or equipment or to be combined with it.
Medium can be electric, magnetic, light, electromagnetism, ultrared or semi-conductive system (or device or device) or propagation medium.The example of computer-readable medium comprises semiconductor or solid-state memory, tape, removable computer diskette, random access storage device (RAM), read-only memory (ROM), hard disk and CD.The example of CD comprises compact disk-read-only memory (CD-ROM), compact disk-read/write (CD-R/W) and DVD at present.
Should be noted that for embodiments of the present invention are more readily understood, top description has been omitted to be known for a person skilled in the art and may to be essential more specifically some ins and outs for the realization of embodiments of the present invention.It is in order to illustrate and to describe that specification of the present invention is provided, rather than is used for exhaustive or limits the invention to disclosed form.For those of ordinary skill in the art, many modifications and distortion all are fine.
Therefore; selecting and describing execution mode is in order to explain better principle of the present invention and practical application thereof; and those of ordinary skills are understood, under the prerequisite that does not break away from essence of the present invention, all modifications and distortion all fall within the protection range defined by the claims.
Claims (8)
1. terminal wake-up method comprises:
At last time slot of the last subframe of the subframe that will monitor paging time slot being set interrupts; And
In interrupting, wakes up described time slot in order to prepare for monitoring paging.
2. method according to claim 1, the paging that wherein will monitor is the paging on Page Indication Channel or the paging channel.
3. method according to claim 2 comprises:
Interrupt will time slot being set at last time slot of last subframe that described Page Indication Channel is monitored the subframe of paging; And
In interrupting, wakes up described time slot in order to prepare for monitoring paging at described Page Indication Channel.
4. method according to claim 3 comprises:
If listen to effective paging at described Page Indication Channel, then determine and to monitor paging in described paging channel;
If on the described Page Indication Channel and the time between described paging channel is monitored satisfy the sleep condition, then enter sleep, and interrupt will time slot being set at last time slot of last subframe that described paging channel is monitored the subframe of paging; And
In interrupting, wakes up described time slot in order to prepare for monitoring paging in described paging channel.
5. terminal wake-up equipment comprises:
Interrupt setting device, be configured to last time slot in the last subframe of the subframe that will monitor paging and time slot is set interrupts; And
Rouser is configured to wake up in described time slot interrupts in order to prepare for monitoring paging.
6. equipment according to claim 5, the paging that wherein will monitor is the paging on Page Indication Channel or the paging channel.
7. equipment according to claim 6, wherein,
Described interruption setting device is configured to interrupt will time slot being set at last time slot of last subframe that described Page Indication Channel is monitored the subframe of paging; And
Described Rouser is configured to wake up in described time slot interrupts in order to prepare for monitoring paging at described Page Indication Channel.
8. equipment according to claim 7 comprises:
Determine device, if be configured to listen to effective paging at described Page Indication Channel, then determine and to monitor paging in described paging channel; And
Sleeping apparatus, if be configured on the described Page Indication Channel and the time between described paging channel is monitored satisfy the sleep condition, then enter sleep; And wherein,
Described interruption setting device also is configured to interrupt will time slot being set at last time slot of last subframe that described paging channel is monitored the subframe of paging;
Described Rouser also is configured to wake up in described time slot interrupts in order to prepare for monitoring paging in described paging channel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261617544P | 2012-03-29 | 2012-03-29 | |
| US61/617,544 | 2012-03-29 |
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| CN103369644A true CN103369644A (en) | 2013-10-23 |
| CN103369644B CN103369644B (en) | 2018-08-28 |
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| CN201310090157.3A Expired - Fee Related CN103369644B (en) | 2012-03-29 | 2013-03-13 | Terminal awakening method and equipment |
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| CN103369644B (en) | 2018-08-28 |
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Effective date of registration: 20200424 Address after: Ford street, Grand Cayman, Cayman Islands Patentee after: Kaiwei international Co. Address before: Hamilton, Bermuda Patentee before: Marvell International Ltd. Effective date of registration: 20200424 Address after: Singapore City Patentee after: Marvell Asia Pte. Ltd. Address before: Ford street, Grand Cayman, Cayman Islands Patentee before: Kaiwei international Co. |
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