CN101626267B - Method and device for synchronous detection - Google Patents

Method and device for synchronous detection Download PDF

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Publication number
CN101626267B
CN101626267B CN2008101165646A CN200810116564A CN101626267B CN 101626267 B CN101626267 B CN 101626267B CN 2008101165646 A CN2008101165646 A CN 2008101165646A CN 200810116564 A CN200810116564 A CN 200810116564A CN 101626267 B CN101626267 B CN 101626267B
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sync
uplink
uplink data
channel
synchro timer
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CN101626267A (en
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贾民丽
张英
许芳丽
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN2008101165646A priority Critical patent/CN101626267B/en
Priority to MX2011000339A priority patent/MX2011000339A/en
Priority to KR1020117003327A priority patent/KR101218137B1/en
Priority to PCT/CN2009/072715 priority patent/WO2010003383A1/en
Publication of CN101626267A publication Critical patent/CN101626267A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • 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

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a device for uplink synchronous detection. The method comprises the following steps that: a synchronous timer is operated according to the following rules and comprises a preset timeout time: when a base station receives uplink data and decodes the data correctly, or receives an indication from a wireless network controller, the synchronous timer is started, in the running process of the halted state of the synchronous timer, when the base station receives the uplink data and decodes the data correctly, the synchronous timer is restarted, and when the base station does not receive the expected uplink data for continuous preset times or decodes the received uplink data incorrectly for the continuous preset times, the synchronous timer is stopped; and the base station detects the state of the synchronous timer to judge the uplink synchronous or uplink desynchronizing state currently. By using the synchronous detection method and the device, the uplink synchronous detection can be achieved.

Description

Synchronization detecting method and device
Technical field
The present invention relates to wireless communication technology field, particularly a kind of uplink synchronous detection and device.
Background technology
Uplink synchronous is an important feature of synchronous CDMA (Code Division Multiple Access) of time-division (Time Division-Synchronous CodeDivision Multiple Access, TD-SCDMA) system.Because uplink downlink all adopts orthogonal code spread spectrum in the TD-SCDMA system, the spreading code that only has accurate uplink synchronous guarantee to receive keeps quadrature, thereby reduce disturbance effectively improves power system capacity.
At high speed downlink packet access (High Speed Downlink Packet Access, HSDPA) and high speed uplink packet access (High Speed Uplink Packet Access, HSUPA) in, because the discontinuous characteristic of shared channel transfer of data, generally can dispose following special physical channel (Dedicated PhysicalChannel, DPCH) assist control, such as Synchronization Control or power control etc.Among HSDPA and the HSUPA, the synchronous desynchronizing state of up link mainly is based on the up DPCH of following channel and judges at present.After high level thinks that the DPCH channel has been set up, just can begin to detect the uplink synchronous state, from setting up each later section of beginning in the period, burst quality and CRC (Cyclical Redundancy Check according to up DPCH, CRC) result judges, and report to high level by synchronization primitives, indicate synchronous regime or the desynchronizing state of up link.
In existing system, whether connect with network according to terminal, the connection status of terminal is divided into two large classes: idle (Idle) pattern is connected Connected with connection) pattern.Wherein connection mode is divided into cell private channel (CELL_DCH) state, cell forward access channel (CELL_FACH) state, cell paging channel (CELL_PCH) state, UTRAN Acceditation Area sign paging channel (URA_PCH) state etc. according to the difference of the physical channel kind of using, measurement etc. again.Descending and the uplink data transmission that HSDPA technology and HSUPA technology are mainly used in the CELL_DCH state at first strengthens, yet the research at present HSPA+, in order to improve the up-downgoing transfer of data peak rate under the CELL_FACH state, and the transit time that lowers chain of command and user plane time delay and be reduced to CELL_DCH, have been proposed in the CELL_FACH state and use HSDPA and HSUPA technology, and the CELL_FACH state of citing approvingly into this specific character is enhancing CELL_FACH state.
Simultaneously, in order to improve resource utilization ratio, the CELL_FACH enhanced situation allows the maintenance uplink synchronous that do not continue, namely allow long-time countless when sending uplink loss, uplink data or uplink feedback ought be arranged so, and (for example E-DCH accesses ascending control channel (E-DCH Random AccessUplink Control Channel at random, E-RUCCH), E-DCH physical uplink channel (E-DCH PhysicalUplink Channel, E-PUCH), HS-DSCH shares information channel (Shared InformationChannel for HS-DSCH, when HS-SICH)) needing transmission, must guarantee that terminal is in the uplink synchronous state, otherwise data or the feedback of terminal possibly can't correctly be received in the base station.
Yet in strengthening the CELL_FACH state, prior art has been removed and has been followed DPCH.
In addition, in the research of HSPA+, in order to improve grouping user number, saving terminal (the User Equipment under the CELL_DCH state, UE) electric weight and better must utilize HSDPA and HSUPA technical support Voice over IP (Voice Over IP, VOIP) business that this class delay requirement is high, data rate is little, propose lasting grouping and connected (CPC, Continuous Packet Connectivity) technology.This technology has also been removed and has been followed the DPCH channel.
In the research and practice process to prior art, the inventor finds to exist in the prior art following problem:
Strengthen CELL_FACH and introduced HSDPA technology and HSUPA technology to improve the descending and uplink data transmission peak rate of CELL_FACH state.The CELL_FACH state can allow uplink loss, so, when having uplink data or uplink feedback (for example E-RUCCH, E-PUCH, HS-SICH) to need transmission, must guarantee that terminal is in the uplink synchronous state.But, follow DPCH owing in strengthening the CELL_FACH state, removed in the prior art, so, utilize follow DPCH to carry out mode that uplink synchronous detects will be no longer applicable.
And, following DPCH owing to also removed in the CPC technology introduced under the CELL_DCH state, it is also no longer applicable that original DPCH of utilization carries out the mode that uplink synchronous detects.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of uplink synchronous detection and device, detects to realize uplink synchronisation.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of uplink synchronous detection and device to be achieved in that
A kind of uplink synchronous detection comprises:
Synchro timer is set, and described synchro timer moves according to following rule, and comprises default time-out time:
Setup rule: when the base station receives uplink data and correct to described data decode, or receive the corresponding indication of radio network controller, start synchro timer,
Restart rule: in the synchro timer running or under halted state, when the base station receives uplink data and correct to described data decode, restart described synchro timer,
Stopping rule: the continuous preset times in base station does not receive the uplink data of expectation or preset times is incorrect to the uplink data decoding that receives continuously, stops described synchro timer;
The base station judges that by the state that detects described synchro timer current is uplink synchronous or uplink loss state.
Preferably, in the described method,
The base station receives uplink data packet and draws together in the described setup rule: the base station is by E-RUCCH, arbitrary channel receiving uplink data in PRACH, the E-PUCH channel;
Describedly restart in the rule base station and receive uplink data packet and draw together: the base station is by E-RUCCH, E-PUCH, PRACH, arbitrary channel receiving uplink data in the HS-SICH channel;
The base station receives uplink data packet and draws together in the described stopping rule: the base station is by E-PUCH, arbitrary channel receiving uplink data in the HS-SICH channel.
Preferably, in the described method, described correct or mistake comprises to the decoding of the uplink data that receives:
When passing through E-RUCCH, E-PUCH, the arbitrary channel receiving uplink data among the PRACH, the correct or mistake of the data decode of adopting the CRC judgement to receive.
Preferably, in the described method, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel.
Preferably, in the described method, described correct or mistake comprises to the decoding of the uplink data that receives:
When by HS-SICH channel receiving uplink data, judge the correct or mistake of decoding according to ACK/NACK in this channel.
Preferably, in the described method, describedly judge that according to ACK/NACK in this channel the correct or mistake of decoding comprises:
With each the bit addition of the representative ACK/NACK in the described channel, by with absolute value whether judge the correct or mistake of decoding less than default thresholding.
Preferably, in the described method, described base station is judged by the state that detects described synchro timer and is currently comprised for uplink synchronous or uplink loss state:
If the state that described synchro timer is detected in the base station is judged the current uplink synchronous state that is for not stopping and not overtime;
If described synchro timer is overtime or stop, judging the current uplink loss state that is.
Preferably, in the described method, also comprise:
Synchronous state machine is set, and it comprises IN_SYNC and OUT_OF_SYNC two states;
When starting or restarting described synchro timer, the IN_SYNC of described synchronous state machine is set to 1, OUT_OF_SYNC is set to 0, represent that current is the uplink synchronous state;
When stopping described synchro timer, the IN_SYNC of described synchronous state machine is set to 0, OUT_OF_SYNC is set to 1, represent that current is the uplink loss state.
Preferably, in the described method, also comprise:
Synchronous state machine is set, and it comprises the IN_SYNC state;
When starting or restarting described synchro timer, the IN_SYNC of described synchronous state machine is set to 1, represent that current is the uplink synchronous state;
When stopping described synchro timer, the IN_SYNC of described synchronous state machine is set to 0, represent that current is the uplink loss state.
Preferably, in the described method, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.
Preferably, in the described method, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
A kind of uplink synchronisation checkout gear comprises:
Decoding unit is used for judging the correct or mistake of data decode to receiving;
Synchro timer according to following rule operation, and comprises default time-out time:
Setup rule: when the base station receives uplink data and described decoding unit judges that described data decode is correct, or receive the corresponding indication of radio network controller, start synchro timer,
Restart rule: in the synchro timer running or under halted state, when the base station receives uplink data and described decoding unit is judged that described data decode is correct, restart described synchro timer,
Stopping rule: the continuous preset times in base station does not receive the uplink data of expectation or the described decoding unit judgement of preset times is incorrect to the uplink data decoding that receives continuously, stops described synchro timer;
Detecting unit is used for judging that by the state that detects described synchro timer current is uplink synchronous or uplink loss state.
Preferably, in the described device,
The base station receives uplink data packet and draws together in the described setup rule: the base station is by E-RUCCH, PRACH, arbitrary channel receiving uplink data in the E-PUCH channel;
Describedly restart in the rule base station and receive uplink data packet and draw together: the base station is by E-RUCCH, E-PUCH, PRACH, arbitrary channel receiving uplink data in the HS-SICH channel;
The base station receives uplink data packet and draws together in the described stopping rule: the base station is by E-PUCH, arbitrary channel receiving uplink data in the HS-SICH channel.
Preferably, in the described device, described decoding unit is for passing through E-RUCCH, E-PUCH, the arbitrary channel receiving uplink data among the PRACH, the correct or mistake of the data decode of adopting the CRC judgement to receive.
Preferably, in the described device, described decoding unit for by HS-SICH channel receiving uplink data, is judged the correct or mistake of decoding according to ACK/NACK in this channel.
Preferably, in the described device, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel.
Preferably, in the described device, described decoding unit, for by HS-SICH channel receiving uplink data, with each the bit addition of the representative ACK/NACK in this channel, by with absolute value whether judge decoding correctly or mistake less than default thresholding.
Preferably, in the described device, described detecting unit,
If the state that detects described synchro timer is judged the current uplink synchronous state that is for not stopping and not overtime;
If it is overtime or stop to detect described synchro timer, judge the current uplink loss state that is.
Preferably, in the described device, also comprise:
Synchronous state machine comprises IN_SYNC and OUT_OF_SYNC two states;
When described synchro timer started or restarts, described synchronous state machine was set to 1 with IN_SYNC, and OUT_OF_SYNC is set to 0, represents that current is the uplink synchronous state;
When described synchro timer stopped, described synchronous state machine was set to 0 with IN_SYNC, and OUT_OF_SYNC is set to 1, represented that current is the uplink loss state.
Preferably, in the described device, also comprise:
Synchronous state machine comprises the IN_SYNC state;
When described synchro timer starts or restarts, the IN_SYNC of described synchronous state machine is set to 1, represent that current is the uplink synchronous state;
When described synchro timer stops, the IN_SYNC of described synchronous state machine is set to 0, represent that current is the uplink loss state.
Preferably, in the described device, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.
Preferably, in the described device, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
The technical scheme that is provided by the above embodiment of the invention as seen, synchro timer is set, described synchro timer is according to following rule operation, and comprise default time-out time: when the base station receives uplink data and correct to described data decode, or receive the corresponding indication of radio network controller, start synchro timer, in the synchro timer running or under halted state, when the base station receives uplink data and correct to described data decode, restart described synchro timer, the continuous preset times in base station do not receive the uplink data of expectation or uplink data decoding that continuous preset times is received incorrect, stop described synchro timer; It is uplink synchronous or uplink loss state that the base station is judged current by the state of the described synchro timer of inquiry, can realize that uplink synchronisation detects.
Description of drawings
Fig. 1 is the flow chart of the inventive method embodiment;
Fig. 2 is the flow chart of a specific embodiment of the inventive method;
Fig. 3 is the block diagram of apparatus of the present invention embodiment.
Embodiment
The embodiment of the invention provides a kind of uplink synchronous detection and device.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with drawings and embodiments the embodiment of the invention is described in further detail.
Fig. 1 shows the flow chart of synchronization detecting method embodiment of the present invention, such as Fig. 1, comprising:
S101: when the base station receives uplink data and correct to described data decode, or receive the indication of radio network controller (Radio Network Controller, RNC), start synchro timer, and mark uplink synchronous state.
Here, uplink data can be by E-RUCCH, Physical Random Access Channel (PhysicalRandom Access Channel, PRACH), the data that arbitrary channel receives in the channels such as E-PUCH.
The situation of the up transmission of UE E-RUCCH for example, the base station is after receiving the uplink data of E-RUCCH, to this data decode, if CRC check decoding is correct, it is synchronous then can illustrating up, thereby can start timer (referred to herein as Tsync), and the mark synchronous regime.
Described mark synchronous regime, a synchronous state machine for example can be set, it comprises two states, one is synchronous regime (IN_SYNC), one is desynchronizing state (OUT_OF_SYNC), when synchronous regime, IN_SYNC can be put 1, and OUT_OF_SYNC set to 0, current as synchronous regime to represent.
Certainly, shown in synchronous state machine also can include only IN_SYNC, its value is to represent in 1 o'clock synchronously, is 0 to be the expression step-out.Below similar.
For the corresponding indication that receives RNC, for example can be when the transition that occurs from the CELL_DCH state to the CELL_FACH state, RNC can send " continuing synchronously " indication to the base station by FP (frameprotocol) frame of Iub interface user face, and the base station starts Tsync after receiving this indication.
When the base station receives uplink data and correct to described data decode, or receive the corresponding indication of RNC, can judge and be synchronous regime this moment, therefore at this moment can start synchro timer, for judging the synchronous regime timing in lower a period of time, and IN_SYNC in the synchronous state machine is put 1, and OUT_OF_SYNC is set to 0.
S102: in the synchro timer running or under halted state, when the base station receives uplink data and correct to described data decode, restart described synchro timer, the mark synchronous regime.
Here, uplink data can be by E-RUCCH, E-PUCH, PRACH, the data that arbitrary channel receives in the channels such as HS-SICH.For E-RUCCH, E-PUCH, and PRACH and HS-SICH are uplink transport channel.If the base station is received the data of these up links and is decoded correctly, can restart synchro timer, be to judge the synchronous regime timing in lower a period of time.
Common channel has all adopted CRC (Cyclical Redundancy Check, CRC), can judge the data correctness, above-mentioned E-RUCCH for example, E-PUCH, PRACH channel.
And HS-SICH does not use the CRC coding checkout, but the data of transmitting in the HS-SICH channel comprise ACK/NACK.ACK represents that data correctly receive, and NACK represents that data correctly do not receive.When by HS-SICH channel receiving uplink data, judge the correct or mistake of decoding according to ACK/NACK in this channel.
Concrete, ACK/NACK has used repeated encoding 36 times in the HS-SICH channel.Utilize this coding characteristic, can judge HS-SICH decoding correctness by following mode:
ACK/NACK data before the HS-SICH channel decoding that detects by base station activation are sued for peace, compare with default thresholding (thresholding can be made as Pan), surpass thresholding, think that decoding data is correct, be lower than thresholding, think that decoding data is incorrect.Concrete, the ACK/NACK data of establishing in the front HS-SICH channel of receiving terminal decoding are c 1, c 2..., c 36, representing ACK with+1 in these data ,-1 expression NACK will
Figure S2008101165646D00091
Pan compares with thresholding, draws court verdict, if | &Sigma; i = 1 36 c i | < Pan , It is incorrect then to adjudicate the HS-SICH decoding, otherwise judgement is correct for decoding.
Describedly restart synchro timer, be about to synchro timer and reset and restart timing.Described mark synchronous regime, similar with the front, can be that IN_SYNC is put 1, and OUT_OF_SYNC is set to 0.
Need to prove that after synchro timer Tsync started, the base station may have the situation that repeatedly receives uplink and be correctly decoded.In this situation, correct receiving uplink data and being correctly decoded all will be restarted described synchro timer, the mark synchronous regime each time.
S103: the base station continuous N time does not receive that the uplink data of expectation or continuous N are time incorrect to the uplink data decoding that receives, and stops described synchro timer, the mark desynchronizing state.
Uplink data can be by E-PUCH, the data that arbitrary channel receives in the channels such as HS-SICH.
If it is time incorrect to the uplink data decoding that receives that the base station continuous N time is not received the uplink data of expectation or continuous N, then exist very large probability explanation up no longer synchronous, also be the uplink loss state.M can be a preset value.
For example the HS-SICH of continuous N time expectation does not receive, and perhaps for example continuous N time E-PUCH channel data decoding is incorrect, can stop synchro timer and mark uplink loss state.
With top similar, for the channel that has adopted CRC check, can judge the data correctness by CRC result, for example above-mentioned E-PUCH channel.
Similarly, for the HS-SICH channel, can sue for peace to the ACK/NACK data before the HS-SICH channel decoding that detects by base station activation, compare with default thresholding (thresholding can be made as Pan), surpass thresholding, think that decoding data is correct, be lower than thresholding, think that decoding data is incorrect.Concrete and aforementioned similar.
The mark desynchronizing state as previously mentioned, can be that IN_SYNC in the synchronous state machine is set to 0, and OUT_OF_SYNC is put 1.
In fact, in the embodiment of the invention, be to be provided with a synchro timer, according to above-mentioned S101, the operation of the rule of S102 and S103.S101 can be called setup rule, and S102 can be called restarts rule, and S103 can be called stopping rule.According to above-mentioned rule, synchro timer will start, restart, stop according to RNC indication or uplink data triggering, and correspondingly, synchronous state machine also will be set up.
The operation rule of the synchro timer that S101, S102, S103 can be considered as arranging.The characteristics of the data that this rule receives according to base station side are for the startup of synchro timer, restart and stop and overtime the setting.
Need to prove that the synchro timer in the embodiment of the invention all is synchro timer and the synchronous state machine relevant with same particular terminal with synchronous state machine.
And in above-mentioned each rule, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel.Correspondingly, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.
Described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier (E-DCH RadioNetwork Temporary Identity, E-RNTI) and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell RadioNetwork Temporary Identity, C-RNTI) and/or high speed descending sharing channel Radio Network Temporary Identifier (HS-DSCH Radio Network Temporary Identity, H-RNTI).
S104: the base station judges that by the state that detects described synchro timer current is uplink synchronous or uplink loss.
Need to prove that synchro timer also comprises the time-out time that presets.Surpass described time-out time when synchro timer moves, then synchro timer is timeout mode.
Then, when the base station need to be detected the uplink synchronisation step-out, if detect that synchro timer does not stop and not overtime, then the current uplink synchronous state that is can be judged in the base station, at this moment, IN_SYNC can be put 1, OUT_OF_SYNC and set to 0;
If synchro timer is overtime or stop, then the current uplink loss state that is can be judged in the base station, IN_SYNC can be set to 0, and OUT_OF_SYNC puts 1.
Need to prove that above-mentioned synchronous state machine can only help out, can not have described synchronous state machine, and only have synchro timer.
Below exemplify a specific embodiment of the present invention and be illustrated, Fig. 2 shows the flow process of specific embodiment, comprises such as figure:
S201: the base station receives " continuing synchronously " indication of RNC.
S202: base station initiated synchro timer, the mark synchronous regime is put 1, OUT_OF_SYNC with IN_SYNC and is set to 0.Mark moment this moment is the T among the figure 1Afterwards take the HSDPA process as example.
S203:Node B sends schedule information to UE by HS-SCCH, the information such as the employed time-slot code channel of HS-PDSCH that the schedule information indication sends subsequently.
S204:Node B sends data to UE by HS-PDSCH.UE concerns according to predefined transmit timing, determines the time point that HS-PDSCH occurs, and receives HS-PDSCH, carries out channel quality estimation according to the HS-PDSCH that receives simultaneously, obtains CQI (channel quality indication); And UE obtains feedback information ACK/NACK (determining information/NACK messages) according to the result of HS-PDSCH decoding.
S205:UE in HS-SICH channel feedback CQI and ACK/NACK information to Node B.
S206:S205 meets the rule of aforementioned S102, be that the base station receives uplink data (HS-SICH channel data) and correct to described data decode in the synchro timer running, restart described synchro timer, the mark synchronous regime, IN_SYNC is put 1, OUT_OF_SYNC to be set to 0.Mark moment this moment is the T among the figure 2
S207: in the synchro timer running, surpass the overtime moment, enter timeout mode and continue operation.The overtime moment of mark is the T among the figure 3
The data of the request scheduling resource of the E-RUCCH that S208:Node B reception UE sends, and correct to described data decode.
From this step take the HSUPA process as example.
S209:S208 meets the rule of aforementioned S102, be that the base station receives uplink data (E-RUCCH channel data) and correct to described data decode in the synchro timer running (overrun), restart described synchro timer, the mark synchronous regime, IN_SYNC is put 1, OUT_OF_SYNC to be set to 0.Mark moment this moment is the T among the figure 4
Here, by E-RUCCH channel receiving uplink data and correct to described data decode, therefore, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel, correspondingly, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.Described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
S210:Node B carries out scheduling of resource according to the dispatch request information of receiving, and sends resource license information at E-AGCH.
S211:UE is according to the resource scheduling information of receiving, strengthen transformat combination (E-TFC) and select, select suitable transmission block size (Transport Block Size, TBS) and modulation system, encode afterwards, modulate, send uplink strengthening data at E-PUCH.
S212:S211 meets the rule of aforementioned S102, be that the base station receives uplink data (E-PUCH channel data) and correct to described data decode in the synchro timer running, restart described synchro timer, the mark synchronous regime, IN_SYNC is put 1, OUT_OF_SYNC to be set to 0.Mark moment this moment is the T among the figure 5
Node B receives after the E-PUCH that the processing of decoding obtains ACK/NACK information according to CRC check, is mapped to after the coding to feed back to this UE on the E-HICH.
S213:UE receives the ACK/NACK information of feedback.
S214: continuous N time does not receive that the uplink data of expectation or continuous N are time incorrect to the uplink data decoding that receives, and stops described synchro timer, the mark desynchronizing state.If be T constantly this moment 6
Then take said process as example, if the base station is respectively at T 1～T 2Time period, T 2～T 3Time period, T 4～T 5Time period, T 5～T 6Time period is detected the synchro timer state, because synchro timer does not stop and be not overtime, then the current uplink synchronous state that is can be judged in the base station, at this moment, IN_SYNC can be put 1, OUT_OF_SYNC and set to 0.
If the base station is at T 3～T 4Detect the synchro timer state in time period, because synchro timer is timeout mode, then the current uplink loss state that is can be judged in the base station, at this moment, IN_SYNC can be set to 0, and OUT_OF_SYNC puts 1.
If the base station is at T 6Inquiry synchro timer state in the later time period, because synchro timer is halted state, then the current uplink loss state that is can be judged in the base station, at this moment, IN_SYNC can be set to 0, OUT_OF_SYNC puts 1.
Below introduce device embodiment of the present invention, Fig. 4 shows the block diagram of this device embodiment, such as Fig. 4, comprising:
Decoding unit 301 is used for judging the correct or mistake of data decode to receiving;
Synchro timer 302 according to following rule operation, and comprises default time-out time:
Setup rule: when the base station receives uplink data and described decoding unit judges that described data decode is correct, or receive the corresponding indication of radio network controller, start synchro timer,
Restart rule: in the synchro timer running or under halted state, when the base station receives uplink data and described decoding unit is judged that described data decode is correct, restart described synchro timer,
Stopping rule: the continuous preset times in base station does not receive the uplink data of expectation or the described decoding unit judgement of preset times is incorrect to the uplink data decoding that receives continuously, stops described synchro timer;
Detecting unit 303 is used for judging that by the state that detects described synchro timer current is uplink synchronous or uplink loss state.
Preferably, the base station receives uplink data packet and draws together in the described setup rule: the base station is by E-RUCCH, PRACH, arbitrary channel receiving uplink data in the E-PUCH channel;
Describedly restart in the rule base station and receive uplink data packet and draw together: the base station is by E-RUCCH, E-PUCH, PRACH, arbitrary channel receiving uplink data in the HS-SICH channel;
The base station receives uplink data packet and draws together in the described stopping rule: the base station is by E-PUCH, arbitrary channel receiving uplink data in the HS-SICH channel.
Preferably, described decoding unit,
For passing through E-RUCCH, E-PUCH, the arbitrary channel receiving uplink data among the PRACH, the correct or mistake of the data decode of adopting the CRC judgement to receive;
Preferably, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel.
Preferably, described decoding unit for by HS-SICH channel receiving uplink data, is judged the correct or mistake of decoding according to ACK/NACK in this channel.
Preferably, described decoding unit,
For by HS-SICH channel receiving uplink data, with each the bit addition of the representative ACK/NACK in this channel, by with absolute value whether judge decoding correctly or mistake less than default thresholding.
Preferably, described detecting unit,
If the state that detects described synchro timer is judged the current uplink synchronous state that is for not stopping and not overtime;
If it is overtime or stop to detect described synchro timer, judge the current uplink loss state that is.
Preferably, described device can also comprise:
Synchronous state machine comprises IN_SYNC and OUT_OF_SYNC two states;
When described synchro timer started or restarts, described synchronous state machine was set to 1 with IN_SYNC, and OUT_OF_SYNC is set to 0, represents that current is the uplink synchronous state;
When described synchro timer stopped, described synchronous state machine was set to 0 with IN_SYNC, and OUT_OF_SYNC is set to 1, represented that current is the uplink loss state.
Preferably, described device can also comprise:
Synchronous state machine comprises the IN_SYNC state;
When described synchro timer starts or restarts, the IN_SYNC of described synchronous state machine is set to 1, represent that current is the uplink synchronous state;
When described synchro timer stops, the IN_SYNC of described synchronous state machine is set to 0, represent that current is the uplink loss state.
Need to prove that the synchro timer in the embodiment of the invention all is synchro timer and the synchronous state machine relevant with same particular terminal with synchronous state machine.
Preferably, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.
Preferably, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
By above embodiment as seen, synchro timer is set, described synchro timer moves according to aforementioned rule, and it is synchronous or desynchronizing state that the base station is judged current by the state of the described synchro timer of inquiry, can realize that uplink synchronisation detects.
Although described the embodiment of the invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.

Claims (30)

1. a uplink synchronous detection is characterized in that, comprising:
Synchro timer is set, and described synchro timer moves according to following rule, and comprises default time-out time:
Setup rule: when the base station receives uplink data and correct to described data decode, or receive the corresponding indication of radio network controller, start synchro timer,
Restart rule: in the synchro timer running or under halted state, when the base station receives uplink data and correct to described data decode, restart described synchro timer,
Wherein, the base station receives uplink data packet and draws together in the described setup rule: the base station is by E-RUCCH, PRACH, arbitrary channel receiving uplink data in the E-PUCH channel;
Describedly restart in the rule base station and receive uplink data packet and draw together: the base station is by E-RUCCH, E-PUCH, PRACH, arbitrary channel receiving uplink data in the HS-SICH channel;
The base station judges that by the state that detects described synchro timer current is uplink synchronous or uplink loss state.
2. the method for claim 1, it is characterized in that, also comprise stopping rule, described stopping rule comprises: the continuous preset times in base station does not receive the uplink data of expectation or preset times is incorrect to the uplink data decoding that receives continuously, stops described synchro timer.
3. method as claimed in claim 2 is characterized in that, the base station receives uplink data packet and draws together in the described stopping rule: the base station is by E-PUCH, arbitrary channel receiving uplink data in the HS-SICH channel.
4. method as claimed in claim 1 or 2 is characterized in that, described correct or incorrect comprising of uplink data decoding to receiving:
When by E-RUCCH, E-PUCH, the arbitrary channel receiving uplink data among the PRACH adopt CRC to judge that the data decode that receives is correct or incorrect.
5. the method for claim 1, it is characterized in that, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel.
6. method as claimed in claim 1 or 2 is characterized in that, described correct or incorrect comprising of uplink data decoding to receiving:
When by HS-SICH channel receiving uplink data, judge that according to ACK/NACK in this channel decoding is correct or incorrect.
7. method as claimed in claim 6 is characterized in that, describedly judges decoding correct or incorrect comprising according to ACK/NACK in this channel:
With each the bit addition of the representative ACK/NACK in the described channel, when with absolute value during less than default thresholding, judge that decoding is incorrect; Otherwise, judge that decoding is correct.
8. the method for claim 1 is characterized in that, described base station is judged by the state that detects described synchro timer and currently comprised for uplink synchronous or uplink loss state:
If the state that described synchro timer is detected in the base station is judged the current uplink synchronous state that is for not stopping and not overtime;
If described synchro timer is overtime or stop, judging the current uplink loss state that is.
9. the method for claim 1 is characterized in that, also comprises:
Synchronous state machine is set, and it comprises IN_SYNC and OUT_OF_SYNC two states;
When starting or restarting described synchro timer, the IN_SYNC of described synchronous state machine is set to 1, OUT_OF_SYNC is set to 0, represent that current is the uplink synchronous state.
10. method as claimed in claim 2 is characterized in that, also comprises:
Synchronous state machine is set, and it comprises IN_SYNC and OUT_OF_SYNC two states;
When stopping described synchro timer, the IN_SYNC of described synchronous state machine is set to 0, OUT_OF_SYNC is set to 1, represent that current is the uplink loss state.
11. the method for claim 1 is characterized in that, also comprises:
Synchronous state machine is set, and it comprises the IN_SYNC state;
When starting or restarting described synchro timer, the IN_SYNC of described synchronous state machine is set to 1, represent that current is the uplink synchronous state.
12. method as claimed in claim 2 is characterized in that, also comprises:
Synchronous state machine is set, and it comprises IN_SYNC and OUT_OF_SYNC two states;
When stopping described synchro timer, the IN_SYNC of described synchronous state machine is set to 0, represent that current is the uplink loss state.
13. such as each described method in the claim 9 to 12, it is characterized in that, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.
14. method as claimed in claim 5 is characterized in that, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
15. method as claimed in claim 13 is characterized in that, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
16. a uplink synchronisation checkout gear is characterized in that, comprising:
Decoding unit is used for judging that the data decode to receiving is correct or incorrect;
Synchro timer according to following rule operation, and comprises default time-out time:
Setup rule: when the base station receives uplink data and described decoding unit judges that described data decode is correct, or receive the corresponding indication of radio network controller, start synchro timer,
Restart rule: in the synchro timer running or under halted state, when the base station receives uplink data and described decoding unit is judged that described data decode is correct, restart described synchro timer,
Wherein, the base station receives uplink data packet and draws together in the described setup rule: the base station is by E-RUCCH, PRACH, arbitrary channel receiving uplink data in the E-PUCH channel;
Describedly restart in the rule base station and receive uplink data packet and draw together: the base station is by E-RUCCH, E-PUCH, PRACH, arbitrary channel receiving uplink data in the HS-SICH channel;
Detecting unit is used for judging that by the state that detects described synchro timer current is uplink synchronous or uplink loss state.
17. device as claimed in claim 16, it is characterized in that, also comprise stopping rule, described stopping rule comprises: the continuous preset times in base station does not receive the uplink data of expectation or preset times is incorrect to the uplink data decoding that receives continuously, stops described synchro timer.
18. device as claimed in claim 17 is characterized in that, the base station receives uplink data packet and draws together in the described stopping rule: the base station is by E-PUCH, arbitrary channel receiving uplink data in the HS-SICH channel.
19. such as claim 16 or 17 described devices, it is characterized in that described decoding unit, for passing through E-RUCCH, E-PUCH, the arbitrary channel receiving uplink data among the PRACH adopt CRC to judge that the data decode that receives is correct or incorrect.
20. device as claimed in claim 16, it is characterized in that, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the synchro timer of restarting comprise the synchro timer relevant with the terminal iidentification that carries on the respective channel.
21. device as claimed in claim 16 is characterized in that, described decoding unit for by HS-SICH channel receiving uplink data, judges that according to ACK/NACK in this channel decoding is correct or incorrect.
22. device as claimed in claim 21 is characterized in that, described decoding unit, for passing through HS-SICH channel receiving uplink data, with each the bit addition of the representative ACK/NACK in this channel, when with absolute value during less than default thresholding, judge that decoding is incorrect; Otherwise, judge that decoding is correct.
23. device as claimed in claim 16 is characterized in that, described detecting unit,
If the state that detects described synchro timer is judged the current uplink synchronous state that is for not stopping and not overtime;
If it is overtime or stop to detect described synchro timer, judge the current uplink loss state that is.
24. device as claimed in claim 16 is characterized in that, also comprises:
Synchronous state machine comprises IN_SYNC and OUT_OF_SYNC two states;
When described synchro timer started or restarts, described synchronous state machine was set to 1 with IN_SYNC, and OUT_OF_SYNC is set to 0, represents that current is the uplink synchronous state.
25. device as claimed in claim 17 is characterized in that: also comprise:
Synchronous state machine comprises IN_SYNC and OUT_OF_SYNC two states;
When described synchro timer stopped, described synchronous state machine was set to 0 with IN_SYNC, and OUT_OF_SYNC is set to 1, represented that current is the uplink loss state.
26. device as claimed in claim 16 is characterized in that, also comprises:
Synchronous state machine comprises the IN_SYNC state;
When described synchro timer starts or restarts, the IN_SYNC of described synchronous state machine is set to 1, represent that current is the uplink synchronous state.
27. device as claimed in claim 17 is characterized in that, also comprises:
Synchronous state machine comprises IN_SYNC and OUT_OF_SYNC two states;
When described synchro timer stops, the IN_SYNC of described synchronous state machine is set to 0, represent that current is the uplink loss state.
28. such as each described device in the claim 24 to 27, it is characterized in that, when by E-RUCCH or PRACH channel receiving uplink data and correct to described data decode, described startup, the corresponding synchronous state machine that arranges comprises the synchronous state machine relevant with the terminal iidentification that carries on the respective channel when restarting synchro timer.
29. device as claimed in claim 20 is characterized in that, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
30. device as claimed in claim 28 is characterized in that, described terminal iidentification comprises enhancing dedicated channel Radio Network Temporary Identifier and/or Cell Radio Network Temporary Identifier/Identity, Cell-RNTI and/or high speed descending sharing channel Radio Network Temporary Identifier.
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MX2011000339A MX2011000339A (en) 2008-07-11 2009-07-10 Synchronization detection method and device.
KR1020117003327A KR101218137B1 (en) 2008-07-11 2009-07-10 Synchronization Detection Method and Device
PCT/CN2009/072715 WO2010003383A1 (en) 2008-07-11 2009-07-10 Synchronization detection method and device

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CN107295624B (en) * 2016-03-30 2021-11-26 日本电气株式会社 Node synchronization method and node adopting same
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