CN103313276A - Blind detection method and device of cell - Google Patents

Blind detection method and device of cell Download PDF

Info

Publication number
CN103313276A
CN103313276A CN2013100901802A CN201310090180A CN103313276A CN 103313276 A CN103313276 A CN 103313276A CN 2013100901802 A CN2013100901802 A CN 2013100901802A CN 201310090180 A CN201310090180 A CN 201310090180A CN 103313276 A CN103313276 A CN 103313276A
Authority
CN
China
Prior art keywords
cell
dwpts
residential quarter
signal quality
mobile device
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.)
Granted
Application number
CN2013100901802A
Other languages
Chinese (zh)
Other versions
CN103313276B (en
Inventor
程永旺
吴大焰
朱仕轶
王彤欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaiwei International Co
Marvell Asia Pte Ltd
Original Assignee
Marvell International Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marvell International Ltd filed Critical Marvell International Ltd
Publication of CN103313276A publication Critical patent/CN103313276A/en
Application granted granted Critical
Publication of CN103313276B publication Critical patent/CN103313276B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a blind detection method and a device of a cell. The method comprises the following steps: performing downlink pilot time slot DwPTS correlation thereby obtaining one or a plurality of DwPTSs of which the correlation intensity exceeds a certain threshold; and aiming at each in the one or the plurality of obtained DwPTSs, selecting MA with strongest signal quality from the contained exercise sequence MA, and utilizing the cell which corresponds with the MA with strongest signal quality as a candidate cell. Through the method, a strong cell which truly exists in an environment can be found out in time, thereby realizing same-frequency interference elimination and improving receiving demodulation performance and measuring accuracy. Besides, the strong same-frequency interference cell can be found out through the method of the invention and is allocated in channel elimination, thereby improving accuracy of the cell measurement result. Furthermore the detected cell is used as interference cell in common channel receiving, thereby improving demodulation performance of the common channels such as BCH/FACH.

Description

The method and apparatus of residential quarter blind Detecting
The cross reference of related application
The application requires the priority of the 61/611st, No. 397 U.S. Provisional Application submitting on March 15th, 2012, and its disclosure mode by reference all is incorporated into this.
Technical field
Embodiments of the present invention relate to the communications field, more specifically, relate to the residential quarter blind Detecting (DCM) among the TD-SCDMA.
Background technology
Along with the high speed development of the communication technology, especially mobile communication technology, the application of mobile device is more and more extensive, thus so that the cell detection problem also becomes focus and the focus of moving communicating field day by day.In cell detection, because outfield network optimization problem, network may not be placed on all strong co-frequency cells under certain frequency system message or measure in the control message in some cases.Like this, on the TS0 of TD-SCDMA, will be subject to from these not in the co-channel interference of network configuration cell list small area; These interference can cause the receiving signal demodulation degradation, also can occur simultaneously inaccurate under the corresponding frequency on the cell measurement.
Summary of the invention
In order to address the above problem, according to an aspect of the present invention, the method of a kind of residential quarter blind Detecting is proposed, comprise: the one or more frequencies in the broadcasting are carried out down link pilot timeslot DwPTS be correlated with, thereby obtain one or more DwPTS that strength of correlation surpasses a certain threshold value for each frequency; For among the described one or more DwPTS that obtain each, in the training sequence MA that it comprises, select the strongest MA of signal quality, with residential quarter that will be corresponding with the strongest MA of described signal quality as candidate cell.
In optional realization of the present invention, also comprise at least a step of obtaining in relevant timing information and the automatic gain control AGC information according to the method for residential quarter of the present invention blind Detecting.
In optional realization of the present invention, automatically carry out in physical layer according to the method for residential quarter of the present invention blind Detecting.
In optional realization of the present invention, periodically carry out according to the method for residential quarter of the present invention blind Detecting.In further optional realization of the present invention, comprise that also variation according to network environment decides the length in described cycle.
According to a further aspect in the invention, a kind of device of blind cell detection is proposed, comprise: relevant apparatus, be configured to that the one or more frequencies in the broadcasting are carried out down link pilot timeslot DwPTS and be correlated with, thereby obtain one or more DwPTS that strength of correlation surpasses a certain threshold value for each frequency; Device is determined in the residential quarter, is configured to among the described one or more DwPTS that obtain each, selects the strongest MA of signal quality in the training sequence MA that it comprises, with residential quarter that will be corresponding with the strongest MA of described signal quality as candidate cell.
In optional realization of the present invention, also comprise information acquisition device according to the device of residential quarter of the present invention blind Detecting, be configured to obtain at least a in relevant timing information and the automatic gain control AGC information.
In optional realization of the present invention, automatically move in physical layer according to the device of residential quarter of the present invention blind Detecting.
In optional realization of the present invention, periodically move according to the device of residential quarter of the present invention blind Detecting.
In optional realization of the present invention, also comprise the cycle determination device according to the device of residential quarter of the present invention blind Detecting, be configured to decide according to the variation of network environment the length in described cycle.
According to various aspects of the present invention, periodically carry out the residential quarter blind Detecting by physical layer, in order in time find out the strong residential quarter of these necessary beings in the environment, carry out co-channel interference and eliminate; Like this, the demodulation performance of reception and the accuracy of measurement will be improved.In addition, realize that according to of the present invention each strong inter-frequency interference cell that also will find is configured in the channel estimating, thereby can improve the accuracy of cell measurement results.And, utilize the residential quarter detect to carry out the interfered cell that common signal channel receives, can improve the demodulation performance of the common signal channel such as BCH/FACH.
Description of 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 and according to one embodiment of the present invention the method 300 of blind Detecting is carried out in the residential quarter;
Fig. 4 shows and according to an embodiment of the invention the block diagram of the device 400 of blind Detecting is carried out in the residential quarter; And
Fig. 5 is the structural representation of the mobile device (such as, smart mobile phone) according to one embodiment of the present invention.
Embodiment
For ease of understanding the present invention, the physical layer frame structure of TD-SCDMA system is described in conjunction with Fig. 1 and Fig. 2 at first.Wherein, Fig. 1 is the physical layer frame structure of TD-SCDMA system, and Fig. 2 is the example format of DwPTS.
A tdma frame length of 3GPP definition is 10ms.TD-SCDMA is for realizing fast power control and timing advance standard and employ new technology (smart antenna etc.), the frame of 10ms is divided into two identical subframes of structure, the frame length of subframe is 5ms, its structure is as shown in Figure 1: each subframe is made of three special time slots (DwPTS, GP, UpPTS) and 7 conventional time slots (TS0-TS6), DwPTS and UpPTS are used separately as down-going synchronous and uplink synchronous, not carrying user data.As shown in Figure 2, the time slot of DwPTS comprises two parts: the protection interval GP of the descending synchronous code SYNC_DL of 64chips and 32chips.The duration of DwPTS is 75us, is used for the protection of downstream-to-upstream conversion.The time slot of UpPTS comprises the protection interval of uplink synchronous code and the 32chips of 128chips.GP is as the protection of the propagation delay in the uplink synchronous process, altogether 96chips; Conventional time slot (TS0-TS6) is as transmitting user data and control information, and what TS0 was fixing sends broadcast message and control information as descending time slot, TS1 fixing as ascending time slot.Other conventional time slot (TS2-TS6) can be configured to upstream or downstream according to demand to support asymmetry professional; the structure of time slot of conventional time slot has been divided into four territories; two data fields, training sequence (midamble is referred to as " MA ") territory and the protection interval as the time slot protection.
Symmetry is professional or asymmetry is professional no matter be actually; the position of DwPTS and UpPTS is fixed; the centre only has protection interval GP (96chips); the setting of carrying out the transmitting power of uplink synchronous according to downlink synchronous signal intensity like this is proper, because the possibility of the variation of signal strength signal intensity is very little therebetween.
More than illustrate the physical frame structure of TD_SCDMA and the example format of DwPTS, below in conjunction with method shown in Figure 3 300 residential quarter blind Detecting DCM according to the present invention is described.
After method 300 beginnings, at first enter step S302, the one or more frequencies in the broadcasting are carried out DwPTS be correlated with, thereby obtain one or more DwPTS that strength of correlation surpasses a certain threshold value for each frequency.Those skilled in the art should know, among the step S202 the one or more frequencies in the broadcasting are carried out the relevant step of DwPTS and for example can comprise step 1) according to the frequency point information of Web broadcast, generate current DCM frequency point information table; Step 2) each frequency in the DCM frequency point information table is respectively DwPTS relevant, (strength of correlation of this N DwPTS should surpass a certain threshold value usually, to guarantee that it is as effective DwPTS to choose the top n DwPTS that may exist according to certain algorithmic rule.Threshold value can be empirical value, also can be set by system or user); And step 3) obtains the relevant regularly information such as (timing), AGC (Auto Gain Control).
Next, method 300 enters step S304, among the one or more DwPTS that obtain each, selects the strongest MA of signal quality in the training sequence MA that it comprises, with residential quarter that will be corresponding with the strongest MA of this signal quality as candidate cell.
Particularly, since in the TD-SCDMA system DwPTS corresponding be 4 candidates' MA, a kind ofly realize generally including the candidate cell information table that will find the corresponding 4*N of all a DwPTS MA to extract a residential quarter blind Detecting of generation under each frequency; Then all MA that belong to same frequency in the candidate cell information table are carried out the MA421 process at same frame, then carry out Signal quality assessment to belonging to lower 4 MA of same DL, select what a residential quarter.So just find out and to have N residential quarter under certain frequency.
So far, method 300 finishes.
It should be noted that abovementioned steps S302 carries out each frequency to S304, thereby finally can finish the residential quarter blind Detecting of all frequencies in the frequency point information table.In addition, in preferred a realization of the present invention, method 300 is carried out in physical layer (automatically).
In preferred realization of the present invention, arrange according to periodicity in the DCM scheduling.Because its arrangement has also taken TSO, DwPTS resource, and may carry out the intrasystem measurement of TD and timing synchronization process on these two time slots.When with the TD system in when measure arranging there is time slot collision, under various scenes, can adopt flexibly strategy dynamically to adjust priority.And can support in design to adjust dynamically dispatching cycle for DCM, consider mainly that here the user may move among a small circle, also the situation of possible High-speed Circumstance fast moving.But generally speaking, because DCM measuring period can be unlike arranging local area or nearby region measurement arrangement so frequent in the TD system.Therefore for example can be with reference to the judgement of determining of the variation before and after the local area signal receiving quality:
1) if find that the ambient network environmental change is violent, then promptly starts the residential quarter blind Detecting, shorten simultaneously its cycle.
2) if find that the ambient network environment is more stable, can increase its cycle.
The advantage of the above-mentioned variable cycle practice is to be conducive to power saving under the standby, because DCM arranges can bring extra expense to system after all.The practice that it will be understood by those skilled in the art that this variable cycle only is a preferred exemplary, and not as the restriction to various aspects of the present invention.
By the present invention, the strong inter-frequency interference cell that finds is configured in the channel estimating, thereby can improves the accuracy of cell measurement results.And, utilize the residential quarter detect to carry out the interfered cell that common signal channel receives, can improve the demodulation performance of the common signal channel such as BCH/FACH.
Next further describe to show with reference to Fig. 4 and according to an embodiment of the invention the block diagram of the device 400 of blind Detecting is carried out in the residential quarter.As shown in Figure 4, device 400 comprises: relevant apparatus 401, being configured to that the one or more frequencies in the broadcasting are carried out down link pilot timeslot DwPTS is correlated with, thereby obtain one or more DwPTS that strength of correlation surpasses a certain threshold value for each frequency, and device 402 is determined in the residential quarter, be configured to among the described one or more DwPTS that obtain each, in the training sequence MA that it comprises, select the strongest MA of signal quality, with residential quarter that will be corresponding with the strongest MA of described signal quality as candidate cell.
In optional realization of the present invention, device 400 also comprises information acquisition device 403, is configured to obtain at least a in relevant timing information and the automatic gain control AGC information.
In optional realization of the present invention, device 400 can move automatically in physical layer.
In optional realization of the present invention, device 400 is operation periodically.
In optional realization of the present invention, device 400 also comprises cycle determination device 404, is configured to decide according to the variation of network environment the length in described cycle.
Fig. 5 is the structural representation of the mobile device (such as, smart mobile phone) according to 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 mobile device of will be from exemplary embodiment of the invention being benefited, and be not used for limiting the scope of exemplary embodiment of the invention.Although illustrate several execution modes of mobile device 10 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 mobile device 10 can use several execution modes of the inventive method, the device except mobile device 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.
But mobile device 10 can comprise the antenna 12 (perhaps a plurality of antennas) with reflector 14 and receiver 16 operation communications.Mobile device 10 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, mobile device 10 can utilize one or more air-interface standard, communication protocol, modulation type and access style to operate.For example, mobile device 10 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, mobile device 10 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), mobile device 10 can operate according to non-cellular communication mechanisms.For example, mobile device 10 can be communicated by letter in WLAN (wireless local area network) (WLAN) or other communication networks.In addition, mobile device 10 can for example be communicated 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 mobile device 10.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 mobile device 10 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 mobile device 10 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.
Mobile device 10 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.User's input interface of permission mobile device 10 receive datas can comprise any equipment in a plurality of equipment that allow mobile device 10 receive datas, 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 mobile device 10.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, mobile device 10 can also comprise interface equipment such as joystick or other user input devices.Mobile device 10 also comprises for to the various circuit supplies of the needs in order to operate mobile device 10 and the battery 34 of mechanical oscillation as detectable output is provided alternatively, for example the vibrating battery bag.
Mobile device 10 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, mobile device 10 can also be equipped with memory.For example, mobile device 10 can comprise volatile memory 40, for example comprises the volatile random access memory (RAM) for the cache area of temporary transient storage data.Mobile device 10 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 mobile device 10 and be used for implementing many information of function of mobile device 10 and any information and the data in the data.For example, memory can comprise the identifier that can identify uniquely mobile device 10, International Mobile Station Equipment Identification (IMEI) code for example, and can be with the current time position of the adjacent mobile device 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 mobile device 10.
Mobile device 10 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 mobile device 10 are carried out location positioning.Alignment sensor 36 can comprise for all hardware that the location of mobile device 10 is carried out location positioning.Alternatively or additionally, alignment sensor 36 can utilize the memory devices of mobile device 10 to store the instruction of carrying out for controller 20, and its file layout is to determine the required software in position of mobile device 10.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 mobile device 10 with the network equipment such as aerial or ground transaucer.In this regard, the location of mobile device 10 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 mobile device 10 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 mobile device 10.Then in the future the information of self-align transducer 36 is sent to memory or another memory devices of mobile device 10, 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 mobile device 10.Mobile device 10 can also comprise light sensor.
The described block diagram of Fig. 5 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.
Although described the present invention with reference to some embodiments, should be appreciated that, the present invention is not limited to disclosed embodiment.The present invention is intended to contain interior included various modifications and the equivalent arrangements of spirit and scope of claims.The scope of claims meets the most wide in range explanation, thereby comprises all such modifications and equivalent structure and function.

Claims (10)

1. the method for a residential quarter blind Detecting comprises:
One or more frequencies in the broadcasting are carried out down link pilot timeslot (DwPTS) be correlated with, thereby obtain one or more DwPTS that strength of correlation surpasses a certain threshold value for each frequency;
For among the described one or more DwPTS that obtain each, in its training sequence that comprises (MA), select the strongest MA of signal quality, with residential quarter that will be corresponding with the strongest MA of described signal quality as candidate cell.
2. method according to claim 1 also comprises and obtains at least a in relevant timing information and automatic gain control (AGC) information.
3. method according to claim 1, wherein, described method is carried out automatically in physical layer.
4. method according to claim 1, wherein, described method is periodically carried out.
5. method according to claim 4 comprises that also variation according to network environment decides the length in described cycle.
6. the device of a residential quarter blind Detecting comprises:
Relevant apparatus is configured to that the one or more frequencies in the broadcasting are carried out down link pilot timeslot DwPTS and is correlated with, thereby obtains one or more DwPTS that strength of correlation surpasses a certain threshold value for each frequency;
Device is determined in the residential quarter, is configured to among the described one or more DwPTS that obtain each, selects the strongest MA of signal quality in the training sequence MA that it comprises, with residential quarter that will be corresponding with the strongest MA of described signal quality as candidate cell.
7. device according to claim 6 also comprises information acquisition device, is configured to obtain at least a in relevant timing information and the automatic gain control AGC information.
8. device according to claim 6, wherein, described device moves automatically in physical layer.
9. device according to claim 6, wherein, described device periodically moves.
10. device according to claim 9 also comprises the cycle determination device, is configured to decide according to the variation of network environment the length in described cycle.
CN201310090180.2A 2012-03-15 2013-03-13 The method and apparatus of cell blind Detecting Expired - Fee Related CN103313276B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261611397P 2012-03-15 2012-03-15
US61/611,397 2012-03-15

Publications (2)

Publication Number Publication Date
CN103313276A true CN103313276A (en) 2013-09-18
CN103313276B CN103313276B (en) 2018-03-20

Family

ID=49137952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310090180.2A Expired - Fee Related CN103313276B (en) 2012-03-15 2013-03-13 The method and apparatus of cell blind Detecting

Country Status (1)

Country Link
CN (1) CN103313276B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016019750A1 (en) * 2014-08-08 2016-02-11 中国移动通信集团公司 Method, apparatus and system for network-assisted terminal blind detection, and related device
CN108604947A (en) * 2016-01-22 2018-09-28 瑞典爱立信有限公司 For managing in relation to the method and apparatus by the wireless device information of received signal quality and/or signal strength in the downlink
CN110463300A (en) * 2017-01-31 2019-11-15 诺基亚通信公司 Base station control from view of profit based on load counter

Citations (5)

* Cited by examiner, † Cited by third party
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
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
US20110317780A1 (en) * 2010-06-28 2011-12-29 Ji Won Kang Method and apparatus for transmitting synchronization signal in multi-node system

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
US20110317780A1 (en) * 2010-06-28 2011-12-29 Ji Won Kang Method and apparatus for transmitting synchronization signal in multi-node system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
3GPP: "《3GPP TS 25.224 V10.3.0》", 30 September 2011 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016019750A1 (en) * 2014-08-08 2016-02-11 中国移动通信集团公司 Method, apparatus and system for network-assisted terminal blind detection, and related device
CN108604947A (en) * 2016-01-22 2018-09-28 瑞典爱立信有限公司 For managing in relation to the method and apparatus by the wireless device information of received signal quality and/or signal strength in the downlink
CN108604947B (en) * 2016-01-22 2021-05-04 瑞典爱立信有限公司 Method and apparatus for managing information about signal quality and/or signal strength received by a wireless device in the downlink
US11044750B2 (en) 2016-01-22 2021-06-22 Telefonaktiebolaget Lm Ericsson (Publ) Methods and arrangements for managing information about signal quality and/or signal strength received by a wireless device in a downlink
CN110463300A (en) * 2017-01-31 2019-11-15 诺基亚通信公司 Base station control from view of profit based on load counter

Also Published As

Publication number Publication date
CN103313276B (en) 2018-03-20

Similar Documents

Publication Publication Date Title
KR101013273B1 (en) Mobile terminals and methods for performing fast initial frequency scans and cell searches
CN109474939B (en) Synchronous signal block measuring method, terminal and network equipment
CN104137631B (en) For the power saving method of the wireless device in discontinuous reception modes
CN104303551B (en) Measurement to the community arranged according to the group of different priorities
CN102224745A (en) Wireless system improvements based on location positioning by the user equipment
US8391799B2 (en) Mobile communication terminal performing cell search process
CN105873099B (en) Mobile terminal and communication method thereof
US10225790B2 (en) Method and apparatus for discovering WLAN
US11811576B2 (en) Methods and devices for narrowband communications
JP2007116561A (en) Cell search method and mobile communication terminal
WO2016129725A1 (en) Method and devices for hybrid scanning in wireless access system supporting millimeter waves
US8862128B2 (en) Integrated terminal using supplementary information and communicating method thereof
US20120003972A1 (en) Low-Cost Multimode GSM Monitoring from TD-SCDMA
CN112703806B (en) Measurement configuration method and device, and terminal
US8606278B2 (en) Mobile communication system, cell selection method, base station apparatus, and mobile station apparatus
CN103313276A (en) Blind detection method and device of cell
CN102144172A (en) Method and apparatus for UE-based position determination in TD-SCDMA multimode terminals
CN101015221A (en) Method and apparatus for associating with a communication system
CN115398952A (en) Measuring method and device, terminal equipment and network equipment
EP4240084A1 (en) Random access method and apparatus, and communication device
JP6251337B1 (en) Portable terminal, control method and control program
EP3667993A1 (en) User equipment, base station, and related method
RU2727529C1 (en) Method and apparatus for determining detection range of control channel in multibeam system
KR101159888B1 (en) Method and apparatus for discovering access system in multi accessable wireless/mobile system environment
CN110996354B (en) Cell reselection method with interference avoidance in mobile communication and device thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

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.

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