WO2007116757A1 - 移動通信端末、該移動通信端末に用いられる同期判定回路、制御方法、及び同期判定制御プログラム - Google Patents
移動通信端末、該移動通信端末に用いられる同期判定回路、制御方法、及び同期判定制御プログラム Download PDFInfo
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- WO2007116757A1 WO2007116757A1 PCT/JP2007/056446 JP2007056446W WO2007116757A1 WO 2007116757 A1 WO2007116757 A1 WO 2007116757A1 JP 2007056446 W JP2007056446 W JP 2007056446W WO 2007116757 A1 WO2007116757 A1 WO 2007116757A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70755—Setting of lock conditions, e.g. threshold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70707—Efficiency-related aspects
- H04B2201/70709—Efficiency-related aspects with discontinuous detection
Definitions
- Mobile communication terminal synchronization determination circuit used in the mobile communication terminal, control method, and synchronization determination control program
- the present invention relates to a mobile communication terminal, a synchronization determination circuit, a control method, and a synchronization determination control program used for the mobile communication terminal, and in particular, to meet the specifications of a third generation mobile communication system.
- the present invention relates to a mobile communication terminal suitable for application to a mobile phone or the like conforming to the 3GPP (3rd Generation Partnership Project) standard, a synchronization determination circuit, a control method, and a synchronization determination control program used for the mobile communication terminal.
- a communication system using the W_CDMA (Wideband Code Division Multiple Access) system has been developed as a third-generation mobile communication means, and it has been developed for mobile communication terminals such as mobile phones. Therefore, services such as voice communication and packet communication are provided from mobile communication networks based on the SI (Open Systems Interconnection) protocol.
- SI Open Systems Interconnection
- SIR Signal to Interference R
- the SIR of the received signal falls below a preset fixed threshold for a predetermined number of frames, the received spread code and the local spread code are out of synchronization. Determined.
- this type of mobile phone has a common channel level measuring unit 1, a received data decoding unit 2, an individual channel level measuring unit 3, an RLF (Radio Link), for example, as shown in FIG. Failure) judgment control unit 4.
- a radio signal transmitted from a radio base station is received by a radio unit (not shown), and received data in is transmitted from the radio unit.
- the common channel level measurement unit 1 measures the level of the common channel (ie, pilot signal, Common Pilot Channel, CPICH), and the common channel level measurement unit 1 outputs the common channel level a.
- the received data in is despread by the received data decoding unit 2 using the local spreading code assigned to the own station, and the information signal (baseband signal) c of the dedicated channel is Demodulated.
- the level of the information signal c is measured by the individual channel level measurement unit 3, and SIR data d is output from the individual channel level measurement unit 3.
- a first threshold value corresponding to the synchronization state between the local spreading code and the reception spreading code and a second threshold value corresponding to the asynchronous state are set.
- the SIR data d is compared with the first threshold value and the second threshold value by the RLF determination control unit 4, so that the local spreading code and the received spreading code are The synchronization state / non-synchronization state is determined, and the determination signal e is output.
- the determination signal e is sent to an individual channel processing unit (not shown).
- the receiving apparatus and transmitting apparatus used in the spread spectrum communication system described in Patent Document 1 include a correlation determination unit that determines synchronization by correlation calculation between a received spread signal and a spread code, and a radio field intensity of the received signal. It includes an RSSI (Receive Signal Strength Indicator) value detection unit that detects BER and a BER measurement unit that measures the BER (Bit Error Rate) of the received signal. Based on the results obtained from these, the quality of the currently used communication channel is determined by the terminal interface. In determining the quality of the communication channel, BER is taken into consideration, so the presence or absence of interference or noise from other channels is determined. If the quality of the communication channel is poor, the communication quality is ensured by moving the communication channel.
- RSSI Receiveive Signal Strength Indicator
- the SIR measurement unit measures the SIR based on the received signal.
- the speed detector detects the moving speed of the mobile station.
- the synchronization determination processing unit determines whether or not the detected moving speed is greater than a speed detection threshold value. If it is determined that the value is larger than the speed detection threshold, the synchronization determination processing unit changes the SIR threshold to a higher value. If it is determined that the speed detection threshold value is not greater than the speed detection threshold value, the synchronization determination processing unit changes the SIR threshold value to a lower value.
- the synchronization determination processing unit performs synchronization determination based on the SIR measured with the changed SIR threshold as a reference.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-101006 (Abstract, Fig. 1)
- Patent Document 2 Japanese Patent Application Laid-Open No. 2005-253055 (Abstract, Figure 1)
- Non-Patent Document 1 3GPP standard [TS25.331 8.5.6 Radio link failure criteria and actions upon radio link failure]
- the conventional mobile phone has the following problems.
- the timer (in accordance with the 3GPP standard) The determination signal e corresponding to the synchronization state is output after the delay time by the time counting means; T313) has elapsed. Also, when it is determined that the level of the SIR data d is smaller than the second threshold value corresponding to the asynchronous state, the determination signal e corresponding to the asynchronous state is output after the delay time by the timer has elapsed.
- the timer T313 does not operate, so a long time elapses before the judgment signal e is output. There was a problem that wasteful power consumption occurred.
- the object of the present invention is similar to that of the present invention in the receiving device and the transmitting device described in Patent Document 1, the BER is considered in determining the quality of the communication channel, and the interference wave from other channels is used. Since the presence or absence of noise is determined, the configuration is different from the present invention.
- synchronization determination is performed by the synchronization determination processing unit based on the SIR measured using the changed SIR threshold as a reference. Different.
- the present invention has been made in view of the above circumstances, and even when the level of the SIR data is between the first threshold value and the second threshold value, the determination signal e is output in a short time. It is an object of the present invention to provide a mobile communication terminal that does not generate unnecessary power consumption, a synchronization determination circuit, a control method, and a synchronization determination control program used for the mobile communication terminal.
- the invention supports code division multiple access.
- the demodulating means for demodulating the information signal by despreading the received spread code of the received signal using the local spread code assigned to the local station, and the synchronization state of the local spread code and the received spread code / Synchronization determining means for determining a non-synchronized state and outputting a determination signal, wherein the synchronization determining means determines the level of the demodulated information signal corresponding to the first synchronization state.
- the synchronous state Z is configured to determine the asynchronous state, and when the level of the received signal falls below a predetermined third threshold value Threshold value change setting means for setting the first threshold value and the second threshold value to the same value is provided.
- the invention according to the second aspect relates to the mobile communication terminal of the first aspect, wherein the threshold value change setting means is configured to input a pilot signal transmitted from a radio base station as the received signal. It is characterized by that.
- the invention demodulates the information signal by despreading the received spreading code of the received signal using the local spreading code assigned to the own station corresponding to code division multiple access.
- a mobile communication terminal comprising: demodulation means; and synchronization determination means for determining a synchronization state / asynchronous state between the local spreading code and the reception spreading code and outputting a determination signal.
- Transmission status determination means for determining output / output stop of the synchronization, the synchronization determination means, the level of the demodulated information signal corresponding to the first threshold corresponding to the synchronization state and the asynchronous state By comparing with the second threshold value, it is configured to determine the synchronous state Z asynchronous state, and when the transmission status determination means determines the output stop of the transmission signal of the own station, the first threshold value And said second It has a feature that the threshold change setting means for setting a value to the same value are provided.
- the invention according to the fourth aspect relates to the first, second, or third mobile communication terminal, wherein the mobile communication terminal is configured to be wirelessly connected to a mobile communication network based on the OSI protocol.
- a transport format set determining unit for determining a transport format set corresponding to the transport layer of the OSI protocol from the information signal demodulated by the demodulating means; and a transport channel corresponding to the transport layer from the information signal number
- a transport channel number determination unit for determining the transport format set, and the threshold value change setting means is configured such that the determination condition of the transport format set corresponding to the transport layer and the number of transport channels are preset as start conditions,
- the system is configured to be activated when the activation condition is satisfied by the transport format set determination unit and the transport channel number determination unit.
- the invention demodulates the information signal by despreading the received spreading code of the received signal using the local spreading code assigned to the own station corresponding to code division multiple access.
- the present invention relates to a synchronization determination circuit that is used in a mobile communication terminal having a demodulation means and determines a synchronization state / asynchronization state between the local spreading code and the reception spreading code and outputs a determination signal.
- threshold change setting means for setting the first threshold value and the second threshold value to the same value is provided.
- the invention according to a sixth aspect relates to a synchronization determination circuit according to the fifth aspect, wherein the threshold value change setting means is configured to input a pilot signal transmitted from a radio base station as the received signal. It is characterized by that.
- the invention according to the seventh aspect demodulates the information signal by despreading the received spreading code of the received signal using the local spreading code assigned to the own station corresponding to code division multiple access.
- the present invention relates to a synchronization determination circuit that is used in a mobile communication terminal provided with a demodulating means and determines a synchronization state / asynchronous state between the local spreading code and the reception spreading code and outputs a determination signal.
- transmission status determination means for determining output Z output stop of the local station is provided, and the level of the demodulated information signal corresponds to the first threshold corresponding to the synchronous state and the asynchronous state. When the transmission status determination means determines that output of the transmission signal of the local station is stopped, the first threshold value is determined.
- Threshold change setting means for setting a second threshold to the same value is characterized by being provided.
- the invention according to an eighth aspect relates to the synchronization determination circuit according to the fifth, sixth or seventh aspect, wherein the mobile communication terminal is wirelessly connected to a mobile communication network based on the OSI protocol.
- a transport format set determining unit for determining a transport format set corresponding to the transport layer of the OSI protocol from the information signal demodulated by the demodulating means, and corresponding to the transport layer from the information signal
- a transport channel number determination unit for determining the number of transport channels, and the threshold value change setting means includes a determination condition of a transport format set corresponding to the transport layer and the number of transport channels as a start condition. Is set in advance and the activation condition is determined by the transport format set determination unit In addition, it is configured to start when it is satisfied by the transport channel number determination unit.
- the invention demodulates the information signal by despreading the received spreading code of the received signal using the local spreading code assigned to the own station corresponding to code division multiple access.
- the present invention relates to a control method for a mobile communication terminal, comprising: demodulation means; and synchronization determination means that determines a synchronization state / asynchronous state between the local spreading code and the reception spreading code and outputs a determination signal.
- the determining means compares the demodulated information signal level with the first threshold value corresponding to the synchronous state and the second threshold value corresponding to the asynchronous state, thereby determining the synchronous state / asynchronous state. And performing a threshold value change setting process for setting the first threshold value and the second threshold value to the same value when the level of the received signal falls below a predetermined third threshold value. It is said.
- the invention according to a tenth aspect relates to a control method according to the ninth aspect, wherein in the threshold value change setting process, a pilot signal transmitted from a radio base station is input as the received signal. It is said.
- the invention according to the eleventh aspect is a demodulator that demodulates an information signal by despreading the received spreading code of the received signal using a local spreading code assigned to the local station corresponding to code division multiple access. And a synchronization determination means for determining a synchronization state / non-synchronization state between the local spreading code and the reception spreading code and outputting a determination signal.
- Transmission signal output Z Performs transmission status determination processing for determining output stop, and the synchronization determination means sets the level of the demodulated information signal to the previous level.
- the synchronous state Z asynchronous state is determined, and the transmission of the local station is performed in the transmission status determination process.
- threshold change setting processing for setting the first threshold value and the second threshold value to the same value is performed.
- An invention according to a twelfth aspect relates to a control method according to the ninth, tenth or eleventh aspect, wherein the mobile communication terminal is configured to be wirelessly connected to a mobile communication network based on an OSI protocol,
- a transport format set determination process for determining a transport format set corresponding to the transport layer of the SI protocol from the information signal demodulated by the demodulating means, and corresponding to the transport layer from the information signal Transport channel number determination processing for determining the number of transport channels is performed.
- the transport format set determination condition corresponding to the transport layer and the number of transport channels are set in advance as start conditions.
- the start condition is the transport format set determination process. It is characterized in that to start when filled by the determination result of the constant results, and the number of transport channels determination process.
- An invention according to a thirteenth aspect relates to a synchronization determination control program, wherein
- the mobile communication terminal according to any one of the first to fourth aspects is controlled.
- the second threshold when it is determined that the level of the received signal is lower than the third threshold, the second threshold is set to the same value as the first threshold.
- the second threshold value is set to the same value as the first threshold value, so that the level of the demodulated information signal is equal to the second threshold value (When it is determined that the value is smaller than (the first threshold), a determination signal corresponding to the asynchronous state is output immediately after a predetermined delay time has elapsed. For this reason, power consumption can be reduced.
- FIG. 1 is a block diagram showing an electrical configuration of a main part of a mobile communication terminal according to a first embodiment of the present invention.
- FIG. 2 is a flowchart for explaining the operation of the mobile phone of FIG.
- FIG. 3 is a block diagram showing an electrical configuration of a mobile phone according to a second embodiment of the present invention.
- FIG. 4 is a flowchart for explaining the operation of the mobile phone of FIG. 3.
- FIG. 5 is a block diagram showing an electrical configuration of a conventional mobile phone.
- Received data decoding unit (demodulation means, part of mobile communication terminal)
- the first threshold corresponding to the synchronous state and the second threshold corresponding to the asynchronous state are set to the same value.
- a communication terminal a synchronization determination circuit, a control method, and a synchronization determination control program used for the mobile communication terminal.
- FIG. 1 is a block diagram showing the electrical configuration of the main part of the mobile communication terminal according to the first embodiment of the present invention.
- the mobile communication terminal in this example is a mobile phone wirelessly connected to a mobile communication network based on the SI protocol.
- the common channel level measuring unit 11 measures the level of a common channel (that is, pilot signal, Common Pilot Channel, CPICH) of received data in output from a radio unit (not shown) that receives a radio signal from a radio base station. , Output common channel level a.
- a common channel that is, pilot signal, Common Pilot Channel, CPICH
- Received data decoding section 12 despreads the received spread code with respect to received data in using a local spread code assigned to the own station, and generates an individual channel information signal (baseband signal) c. Demodulate.
- the reception data decoding unit 12 outputs the activation signal p to the RLF determination control unit 16.
- the individual channel level measurement unit 13 measures the level of the information signal c and outputs the SIR data d. On the basis of the information signal c, the individual channel level measurement unit 13 supports a transport format corresponding to the OSI protocol transport layer (layer 4). Outputs the set value f.
- the transport format set determination unit 14 determines the transport format set (TFS, a set of transport formats used for the transport channel) corresponding to the transport layer of the OS I protocol. Judgment and output parameter h corresponding to the judgment result g and the number of transport channels.
- the transport channel number determination unit 15 outputs the transport channel number j based on the parameter h.
- the RLF determination control unit 16 is a first unit corresponding to the synchronization state between the local spreading code and the received spreading code.
- a threshold value of 1 and a second threshold value corresponding to the asynchronous state are set, and the value of the transport format set and the number of transport channels corresponding to the transport layer are set in advance as start conditions. It is activated when it is satisfied by the port format set determination unit 14 and the transport channel number determination unit 15.
- the RLF determination control unit 16 compares the SIR data d with the first threshold and the second threshold when the common channel level a is equal to or higher than a predetermined third threshold (common channel level threshold).
- the synchronization state / asynchronous state between the local spreading code and the reception spreading code is determined, and a determination signal e is output.
- the RLF determination control unit 16 when the common channel level a falls below the third threshold value, the RLF determination control unit 16 sets the first threshold value and the second threshold value to the same value.
- the processing of the RLF determination control unit 16 is performed by a computer (not shown) constituting the mobile communication terminal. The function 'processing may be realized based on the synchronization determination control program executed above.
- the synchronization determination circuit of claim 1 corresponds to the configuration including the RLF determination control unit 16, the common channel level measurement unit 11, and the individual channel level measurement unit 13 of FIG.
- the demodulation means corresponds to the reception data decoding unit 12 (decoding unit).
- the fourth term of the claims corresponds to the configuration including the transport format set determination unit 14 and the transport channel number determination unit 15 of FIG.
- FIG. 2 is a flowchart for explaining the operation of the mobile phone shown in FIG. With reference to this figure, the processing content of the control method used for the mobile phone of this example will be described.
- the RLF determination control unit 16 determines that the common channel level a is equal to or higher than a predetermined third threshold (common channel level threshold)
- the SIR data d is stored in the first threshold and the second threshold.
- the determination signal e is output, and in particular, the common channel level a may fall below the third threshold.
- the first threshold value and the second threshold value are set to the same value (threshold change setting process).
- the RLF determination control unit 16 has, as start conditions, the determination conditions of the transport format set corresponding to the transport layer (for example, the transport format TF is SingleTF), the number of transport channels (for example, The number of channels is 1), and the common channel level threshold (third threshold, eg, CPICH standard power component—25 dB) is preset. Then, the activation signal P is output from the received data decoding unit 12 to the RLF determination control unit 16 to start the individual channel processing (step A1), and the RLF determination control unit 16 sets the transport format.
- the transport format set corresponding to the transport layer for example, the transport format TF is SingleTF
- the number of transport channels for example, The number of channels is 1
- the common channel level threshold third threshold, eg, CPICH standard power component—25 dB
- the activation condition of the RLF determination threshold value change control is It is determined whether or not the condition is satisfied (step A2).
- Step A3 When this activation condition is satisfied, the RLF determination control unit 16 is activated, and observation of the common channel level a from the common channel level measurement unit 11 is started (step A3), which is below the common channel level threshold.
- Step A4 when below, RLF half IJ
- the first threshold value and the second threshold value which are constant threshold values, are set to be the same value. In this case, for example, when the first threshold corresponding to the synchronous state is set to OdB and the second threshold corresponding to the out-of-sync state is set to 15 dB, the second threshold is It is changed to OdB, and there is no difference in level between the judgment condition of synchronous state and asynchronous state (Step A5).
- the determination signal e is output immediately.
- the determination signal e corresponding to is output.
- step A6 when the activation signal p from the received data decoding unit 12 becomes the non-active mode and the individual channel processing of the RLF determination control unit 16 is finished (stopped) (step A6), the second threshold value is changed from OdB to the original value. It returns to 5dB and the process ends.
- FIG. 3 is a block diagram showing the electrical configuration of the mobile phone according to the second embodiment of the present invention. Elements common to the elements in FIG. 1 showing the first embodiment are common. The code is attached.
- the common channel level measurement unit 11 in FIG. 1 is deleted, while a transmission status determination unit 17 is provided.
- RLF half IJ instead of the constant control unit 16, an RLF determination control unit 16A having a different function is provided.
- the transmission status determination unit 17 determines output Z output stop of its own station and outputs a determination signal n.
- the RLF determination control unit 16A replaces the function of determining the common channel level a of the RLF determination control unit 16 with the first threshold value and the second threshold value when the determination signal n indicates output stop of the transmission signal of the own station. Is set to the same value.
- the other configuration is the same as in FIG.
- FIG. 4 is a flowchart for explaining the operation of the mobile phone of FIG. With reference to this figure, the processing content of the control method used for the mobile phone of this example will be described.
- the transmission status determination unit 17 determines output / output stop of its own transmission signal (transmission status determination processing)
- the RLF determination control unit 16A By comparing the SIR data d with the first threshold value and the second threshold value, the synchronization state / asynchronous state between the local spreading code and the reception spreading code is determined, and the determination signal e is output. Further, when it is determined that the output of the transmission signal is stopped, the first threshold value and the second threshold value are set to the same value (threshold change setting process).
- RLF determination control unit 16A As a start condition, a determination condition of a transport format set corresponding to the transport layer (for example, transport format TF is SingleTF), the number of transport channels (for example, The number of channels 1) is preset. Then, an activation signal P is output from the received data decoding unit 12 to the RLF determination control unit 16A to activate individual channel processing (step B1), and the RLF determination control unit 16A performs the transport format set determination unit. Based on the determination result g by the transport format set determination process of 14 and the transport channel number j by the transport channel number determination process of the transport channel number determination unit 15, the activation condition of the RLF determination threshold value change control is satisfied. Is determined (step B2).
- the RLF determination control unit 16A is activated, and observation of the transmission stop status is started based on the determination signal n from the transmission status determination unit 17 (step B3). It is determined whether or not the transmission is stopped (step B4), and when the transmission is stopped, the first threshold value and the second threshold value that are RLF determination threshold values are set to be the same value. It is.
- Step B5 when the first threshold corresponding to the synchronous state is set to OdB and the second threshold corresponding to the asynchronous state (out-of_sync) is set to 15 dB, the second threshold force SOdB is set to As a result, there is no difference in level between the judgment conditions for synchronous and asynchronous conditions (Step B5).
- the second threshold value is the same as the first embodiment, as in the first embodiment. Since it is set to the same value as the threshold, when it is determined that the level of the SIR data d is smaller than the threshold, the determination signal e corresponding to the asynchronous state immediately after the delay time by the timer (T313) has elapsed. Is output. For this reason, power consumption is reduced.
- the present invention is not limited to mobile phones, and can be applied to all mobile communication terminals using CDMA and W_CDMA systems such as PDA (Personal Digital Assistants) and car navigation systems.
- CDMA and W_CDMA systems such as PDA (Personal Digital Assistants) and car navigation systems.
- the present invention can be applied to all mobile communication terminals using the CDMA system and the W-CDMA system, and is particularly effective when used in a place where degradation of the wireless communication environment with the wireless base station occurs.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2008509784A JP4826629B2 (ja) | 2006-03-31 | 2007-03-27 | 移動通信端末、該移動通信端末に用いられる同期判定回路、制御方法、及び同期判定制御プログラム |
US12/225,705 US8311080B2 (en) | 2006-03-31 | 2007-03-27 | Mobile communication terminal, synchronization judging circuit used in the mobile communication terminal, control method, synchronization judging control program |
EP07739884.0A EP2009945B1 (en) | 2006-03-31 | 2007-03-27 | Mobile communication terminal, synchronization judging circuit used in the mobile communication terminal, control method, and synchronization judging control program |
CN2007800123211A CN101416409B (zh) | 2006-03-31 | 2007-03-27 | 移动通信终端、用于该移动通信终端的同步判断电路、控制方法、以及同步判断控制程序 |
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JP2006-101261 | 2006-03-31 | ||
JP2006101261 | 2006-03-31 |
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EP (1) | EP2009945B1 (ja) |
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WO2010084688A1 (ja) * | 2009-01-20 | 2010-07-29 | シャープ株式会社 | 移動局装置、基地局装置、無線リンク同期判定方法 |
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KR101375451B1 (ko) * | 2010-12-22 | 2014-04-10 | 한국전자통신연구원 | 무선링크 실패 최소화를 위한 무선환경 최적화 방법 및 장치 |
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- 2007-03-27 CN CN2007800123211A patent/CN101416409B/zh not_active Expired - Fee Related
- 2007-03-27 JP JP2008509784A patent/JP4826629B2/ja not_active Expired - Fee Related
- 2007-03-27 EP EP07739884.0A patent/EP2009945B1/en not_active Expired - Fee Related
- 2007-03-27 US US12/225,705 patent/US8311080B2/en not_active Expired - Fee Related
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011530210A (ja) * | 2008-08-08 | 2011-12-15 | モトローラ モビリティ インコーポレイテッド | 無線リンクにおける障害および回復の検出のための方法 |
WO2010084688A1 (ja) * | 2009-01-20 | 2010-07-29 | シャープ株式会社 | 移動局装置、基地局装置、無線リンク同期判定方法 |
JP5222371B2 (ja) * | 2009-01-20 | 2013-06-26 | シャープ株式会社 | 移動局装置、基地局装置、無線リンク同期判定方法 |
US9351321B2 (en) | 2009-01-20 | 2016-05-24 | Sharp Kabushiki Kaisha | Mobile station apparatus, base station apparatus, and radio link synchronization determining method |
Also Published As
Publication number | Publication date |
---|---|
EP2009945A1 (en) | 2008-12-31 |
US8311080B2 (en) | 2012-11-13 |
EP2009945A4 (en) | 2012-12-12 |
CN101416409A (zh) | 2009-04-22 |
US20090268785A1 (en) | 2009-10-29 |
CN101416409B (zh) | 2013-05-22 |
EP2009945B1 (en) | 2014-10-01 |
JPWO2007116757A1 (ja) | 2009-08-20 |
JP4826629B2 (ja) | 2011-11-30 |
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