CN103260234B

CN103260234B - Up sending control method, mobile communication system and movement station

Info

Publication number: CN103260234B
Application number: CN201310163756.3A
Authority: CN
Inventors: 太田好明; 田岛喜晴; 小林豊; 大渕央; 大渕一央
Original assignee: Fujitsu Ltd
Current assignee: Fujitsu Ltd
Priority date: 2008-06-02
Filing date: 2008-06-02
Publication date: 2016-08-03
Anticipated expiration: 2028-06-02
Also published as: CN103260234A

Abstract

The invention provides up sending control method, mobile communication system and movement station.Movement station (20) is in the case of carrying out the process of the connection to base station (10) according to the 1st transmission timing adjustment information (TA#1), during this connection processes, when receiving the 2nd transmission timing adjustment information (TA#2), process for the transmission before the expiry date of the 1st transmission timing adjustment information (TA#1), this information (TA#1) is applied to send the regulation of timing, process for the transmission after the expiry date of this information (TA#1), send timing adjustment information (TA#2) by the 2nd and be applied to send the regulation of timing.

Description

Up sending control method, mobile communication system and movement station

The application is application for a patent for invention (international application no: the PCT/JP2008/060151 of original bill Application No. No.200880129608.7, the applying date: on 06 02nd, 2008, denomination of invention: timing adjusting method, movement station, base station and mobile communication system) divisional application.

Technical field

The present invention relates to timing adjusting method, movement station, base station and mobile communication system.The present invention is occasionally used for up (up-link: UL) Control on Communication of wireless (movement) communication system.

Background technology

As comprising wireless (movement) communication systems of the wireless terminals such as mobile phone (movement station), currently provide the third generation mobile communications service using CDMA (CDMA:codedivisionmultipleaccess) mode.On the other hand, it is investigated the next generation mobile communication mode of more high-speed communication of can carrying out.In third generation partner program (3GPP:3rdGenerationPartnershipProject), carry out the research of next generation mobile communication mode as long-term evolution (LTE:LongTermEvolution).

In mobile communication system, when wireless base station (evolvedNodeB:eNB, enode b) starts to communicate with movement station (UserEquipment:UE, subscriber equipment), prepare the channel used when eNB is started to send by UE.In 3 gpp, this channel is referred to as RACH (RACH), and the communication process of beginning based on RACH is referred to as Stochastic accessing (RA).

Stochastic accessing in LTE designs according to SlottedAloha mode, and guarantees the time/frequency resource for sending RACH.The information identifying the transmission from UE for eNB is comprised in RACH.That is, in order to be used in conjunction with RACH in multiple UE, and the identifier being referred to as signature (or lead code) is comprised.

UE uses any signature in multiple signature candidate to be transmitted, even if thus different UE use identical temporal frequency resource to send signature via RACH, as long as each UE uses different signatures, eNB just can identify UE according to the signature received.

Additionally, start with RACH in communication, use dedicated channel (or common signal channel) later.

The opportunity of Stochastic accessing is performed, when sending (caller) the most for the first time, when eNB incoming call when when downlink (DL) data (produce), switching, when connecting the recovery after releasing (when restarting the communication interrupted) etc. as UE.Additionally, the wireless link from eNB to UE direction is downlink (DL), its rightabout wireless link is up-link (UL).

Here, first when sending or connect release after when recovering etc., sometimes cannot be to existing but the UE distribution that can not manage of eNB can the dedicated signatures of exclusive use.Such UE selects one from pre-prepd multiple (such as 64 kinds) sign and carries out Stochastic accessing.Therefore, although probability is low, it is likely that cause multiple UE to use same signature to carry out the situation of Stochastic accessing simultaneously.Such accidental access method is referred to as random access procedure (contentionbasedrandomaccessprocedure) based on competition.

Now, eNB solves the signature (UE) that (selection) competes, and responds to selected UE.UE, according to the above-mentioned response received from eNB, judges whether self is selected by eNB.The UE selected by eNB continues to communicate (random access procedure) with eNB, carries out the wireless channel setting etc. between eNB.The UE not selected by eNB performs Stochastic accessing the most again.

Additionally, in the case of the switching (handover) of UE execution switching connection destination eNB, when producing such signature conflict, connection moment disconnects or according to circumstances cuts off communication.Therefore, it is proposed to the UE switched over to be allocated in advance the scheme of dedicated signatures in LTE.Such accidental access method becomes the random access procedure (non-contentionbasedrandomaccessprocedure) being not based on competition.

[non-patent literature 1]: 3GPPTS36.321V8.1.0, " EvolvedUniversalTerrestrialRadioAccesss (E-UTRA)；MediumAccesControl (MAC) protocolspecification ", [online], on March 20th, 2008, [retrieval on May 22nd, 2008], the Internet < URL:http: //www.3gpp.org/ ftp/Specs/html-info/36321.htm>

In prior art, in the process (in execution on the way) of Stochastic accessing, sometimes due to the expiry date sending timing adjustment information expires, and sending the middle generation unfavorable conditions such as regulation regularly.

Summary of the invention

Therefore, present invention aim to address in regulation unfavorable condition sending the middle generations such as timing of (movement station) from base station to terminal.

As one of other purpose, reduce and be connected with base station at movement station and the delay time before communicating can be started.

Additionally, the present invention is not limited only to above-mentioned purpose, it is also possible to orientate following action effect one of as other purpose, i.e. as the action effect derived by each structure shown in aftermentioned embodiment, the action effect that prior art cannot obtain can be played.

Such as, following means are used.

(1) can use the timing adjusting method in mobile communication system, this mobile communication system possesses: according to sending the movement station that timing adjustment information is transmitted processing；And receive the base station sending the signal come from this movement station, wherein, above-mentioned movement station is in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when receiving the 2nd transmission timing adjustment information, process for the transmission before the above-mentioned 1st expiry date sending timing adjustment information, send timing adjustment information by the above-mentioned 1st and be applied to send the regulation of timing, process for the transmission after the above-mentioned 1st expiry date sending timing adjustment information, send timing adjustment information by the above-mentioned 2nd and be applied to send the regulation of timing.

(2) can use the timing adjusting method in mobile communication system, this mobile communication system possesses: according to sending the movement station that timing adjustment information is transmitted processing；And receive the base station sending the signal come from this movement station, wherein, in the case of above-mentioned movement station carries out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, send to this movement station, the identifications information that comprises this movement station signal from above-mentioned base station during above-mentioned connection processes, comprise the 2nd and send timing adjustment information.

(3) can use the timing adjusting method in mobile communication system, this mobile communication system possesses: according to sending the movement station that timing adjustment information is transmitted processing；And receive the base station sending the signal come from this movement station, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when receiving the 2nd transmission timing adjustment information, above-mentioned movement station does not apply the 2nd transmission timing adjustment information to continue to apply the above-mentioned 1st to send timing adjustment information, and extends the expiry date of the 1st transmission timing adjustment information.

(4) can use the timing adjusting method in mobile communication system, this mobile communication system possesses: according to sending the movement station that timing adjustment information is transmitted processing；And receive the base station sending the signal come from this movement station, wherein, above-mentioned movement station is in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when the 1st expiry date sending timing adjustment information arrived before the transmission of the signal of the identifications information carrying out comprising this movement station processes, above-mentioned movement station sends timing adjustment information according to the above-mentioned 1st and performs the transmission process of this signal.

(5) can use the timing adjusting method in mobile communication system, this mobile communication system possesses: according to sending the movement station that timing adjustment information is transmitted processing；And receive the base station sending the signal come from this movement station, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when the 1st expiry date sending timing adjustment information arrived before the transmission of the signal of the identifications information carrying out comprising this movement station processes, above-mentioned movement station stops above-mentioned connection process.

(6) can use the timing adjusting method in mobile communication system, this mobile communication system possesses: according to sending the movement station that timing adjustment information is transmitted processing；And receive the base station sending the signal come from this movement station, wherein, in the case of above-mentioned movement station carries out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, above-mentioned movement station sends the signal of the identification information comprising this movement station, when above-mentioned base station receives this signal, above-mentioned base station is received as opportunity with this signal, sends timing adjustment information by the 2nd and sends to above-mentioned movement station.

(7) can use the movement station in mobile communication system, this mobile communication system possesses: movement station；With the base station of the signal that reception comes from the transmission of this movement station, wherein, this movement station possesses: transmission process portion, and it carries out the process of the transmission to above-mentioned base station according to sending timing adjustment information；And control portion, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when receiving the 2nd transmission timing adjustment information, transmission for the above-mentioned transmission process portion before the above-mentioned 1st expiry date sending timing adjustment information processes, this control portion sends the above-mentioned 1st timing adjustment information and is applied to send the regulation of timing, transmission for the above-mentioned transmission process portion after the above-mentioned 1st expiry date sending timing adjustment information processes, this control portion sends the above-mentioned 2nd timing adjustment information and is applied to send the regulation of timing.

(8) can use the base station in mobile communication system, this mobile communication system possesses: be transmitted the movement station processed；With the base station receiving the signal come from the transmission of this movement station, wherein, this base station possesses control portion, in the case of above-mentioned movement station carries out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, in the signal of identification information that this control portion sends to above-mentioned movement station during above-mentioned connection processes, that comprise this movement station, comprise the 2nd transmission timing adjustment information.

(9) can use the movement station in mobile communication system, this mobile communication system possesses: movement station；With the base station of the signal that reception comes from the transmission of this movement station, wherein, this movement station possesses: transmission process portion, and it carries out the process of the transmission to above-mentioned base station according to sending timing adjustment information；And control portion, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when receiving the 2nd transmission timing adjustment information, this control portion does not apply the 2nd transmission timing adjustment information to continue to apply the above-mentioned 1st to send timing adjustment information, and extends the expiry date of the 1st transmission timing adjustment information.

(10) can use the movement station in mobile communication system, this mobile communication system possesses: movement station；With the base station of the signal that reception comes from the transmission of this movement station, wherein, this movement station possesses: transmission process portion, and it carries out the process of the transmission to above-mentioned base station according to sending timing adjustment information；And control portion, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when the 1st expiry date sending timing adjustment information arrived before the transmission of the signal of the identifications information carrying out comprising this movement station processes, this control portion sends timing adjustment information according to the above-mentioned 1st and performs the transmission process of this signal.

(11) can use the movement station in mobile communication system, this mobile communication system possesses: movement station；With the base station of the signal that reception comes from the transmission of this movement station, wherein, this movement station possesses: transmission process portion, and it carries out the process of the transmission to above-mentioned base station according to sending timing adjustment information；And control portion, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when the 1st expiry date sending timing adjustment information arrived before the transmission of the signal of the identifications information carrying out comprising this movement station processes, this control portion stops above-mentioned connection process.

(12) can use the base station in mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, its reception sends, from this movement station, the signal of coming, and wherein, this base station possesses: reception processing unit, and it receives and sends next signal from this movement station；And control portion, in the case of above-mentioned movement station carries out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when being received the signal of the identification information comprising this movement station by above-mentioned reception processing unit, this control portion is received as opportunity with this signal, sends timing adjustment information by the 2nd and sends to above-mentioned movement station.

(13) can use mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, it receives and sends, from this movement station, the signal of coming, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when receiving the 2nd transmission timing adjustment information, above-mentioned movement station processes for the transmission before the above-mentioned 1st expiry date sending timing adjustment information, send timing adjustment information by the above-mentioned 1st and be applied to send the regulation of timing, process for the transmission after the above-mentioned 1st expiry date sending timing adjustment information, send timing adjustment information by the above-mentioned 2nd and be applied to send the regulation of timing.

(14) can use mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, it receives and sends, from this movement station, the signal of coming, wherein, in the case of above-mentioned movement station carries out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, send to this movement station, the identifications information that comprises this movement station signal from above-mentioned base station during above-mentioned connection processes, comprise the 2nd and send timing adjustment information.

(15) can use mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, it receives and sends, from this movement station, the signal of coming, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when receiving the 2nd transmission timing adjustment information, above-mentioned movement station does not apply the 2nd transmission timing adjustment information to continue to apply the above-mentioned 1st to send timing adjustment information, and extends the expiry date of the 1st transmission timing adjustment information.

(16) can use mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, it receives and sends, from this movement station, the signal of coming, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when the 1st expiry date sending timing adjustment information arrived before the transmission of the signal of the identifications information carrying out comprising this movement station processes, above-mentioned movement station sends timing adjustment information according to the above-mentioned 1st and performs the transmission process of this signal.

(17) can use mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, it receives and sends, from this movement station, the signal of coming, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, when the 1st expiry date sending timing adjustment information arrived before the transmission of the signal of the identifications information carrying out comprising this movement station processes, above-mentioned movement station stops above-mentioned connection process.

(18) can use mobile communication system, this mobile communication system possesses: movement station, and it is transmitted processing according to sending timing adjustment information；And base station, it receives and sends, from this movement station, the signal of coming, wherein, in the case of carrying out the process of the connection to above-mentioned base station according to the 1st transmission timing adjustment information, during this connection processes, above-mentioned movement station sends the signal of the identification information comprising this movement station, when above-mentioned base station receives this signal, above-mentioned base station is received as opportunity with this signal, sends timing adjustment information by the 2nd and sends to above-mentioned movement station.

The present invention provides the up sending control method in a kind of mobile communication system, and this mobile communication system possesses movement station and base station, it is characterised in that described up sending control method has steps of:

In described movement station, based on up transmission control information, it is transmitted processing；

Between described movement station and base station, the multiple parameters relevant with physical uplink control channel resource that distribution transmission processes；

In described movement station, in the case of there is the 1st up transmission control information and carry out processing for the connection of described base station, during comprising this connection of reception of the 2nd up transmission control information process, when the expiry date of the 1st up transmission control information arrived before the transmission of the signal of the identification information carrying out comprising this movement station, do not carry out described transmission, and discharge the parameter relevant with detection reference signal SRS, with the parameter relevant with dispatch request SR in multiple parameters relevant with physical uplink control channel resource distributed, and the parameter relevant with channel quality information CQI,

Between described movement station and described base station, carry out Stochastic accessing.

The present invention also provides for a kind of mobile communication system possessing movement station and base station, it is characterised in that

Described movement station has:

Transmission process portion, it is based on up transmission control information, is transmitted processing；

nullControl portion，In the case of there is the 1st up transmission control information and carry out processing for the connection of described base station，During comprising this connection of reception of the 2nd up transmission control information process，When the expiry date of the 1st up transmission control information arrived before the transmission of the signal of the identification information carrying out comprising this movement station，Described control portion does not carry out described transmission，And for distribution between described movement station and base station、The multiple parameters relevant with physical uplink control channel resource that transmission processes，The parameter relevant with dispatch request SR in multiple parameters relevant with physical uplink control channel resource that release is distributed and the parameter relevant with channel quality information CQI、And the parameter relevant with detection reference signal SRS，And between described movement station and described base station，Carry out Stochastic accessing.

The present invention also provides for the described movement station in a kind of mobile communication system possessing movement station and base station, it is characterised in that

Described movement station has:

Effect as the present invention, it is possible to solve at middle undesirable conditions produced such as the regulations sending timing from base station to movement station.Can also reduce and be connected with base station at movement station and the delay time before communication can be started.

Accompanying drawing explanation

Fig. 1 is the block diagram of an example of wireless (movement) communication system illustrating the 1st embodiment.

Fig. 2 is the sequential chart of an example of the random access procedure being illustrated based on competition.

Fig. 3 is the flow chart being illustrated based on the UE action example in the random access procedure of competition.

Fig. 4 is the flow chart of the action example being illustrated based on the eNB in the random access procedure of competition.

Fig. 5 is the sequential chart of an example of the UL Control on Communication (method 1-1) illustrating the 1st embodiment.

Fig. 6 is the sequential chart of another example of the UL Control on Communication (method 1-1) illustrating the 1st embodiment.

Fig. 7 is the sequential chart of another example of the UL Control on Communication (method 1-1) illustrating the 1st embodiment.

Fig. 8 is the flow chart of an example of the UL Control on Communication (method 1-1) of the UE illustrating the 1st embodiment.

Fig. 9 is the sequential chart of an example of the UL Control on Communication (method 1-2) illustrating the 1st embodiment.

Figure 10 is the sequential chart of another example of the UL Control on Communication (method 1-2) illustrating the 1st embodiment.

Figure 11 is the sequential chart of another example of the UL Control on Communication (method 1-2) illustrating the 1st embodiment.

Figure 12 is the flow chart of an example of the UL Control on Communication (method 1-2) of the UE illustrating the 1st embodiment.

Figure 13 is the sequential chart of an example of the UL Control on Communication (method 1-3) illustrating the 1st embodiment.

Figure 14 is the sequential chart of another example of the UL Control on Communication (method 1-3) illustrating the 1st embodiment.

Figure 15 is the sequential chart of another example of the UL Control on Communication (method 1-3) illustrating the 1st embodiment.

Figure 16 is the flow chart of an example of the UL Control on Communication (method 1-3) of the UE illustrating the 1st embodiment.

Figure 17 is the sequential chart of an example of the UL Control on Communication (method 1-4) illustrating the 1st embodiment.

Figure 18 is the sequential chart of another example of the UL Control on Communication (method 1-4) illustrating the 1st embodiment.

Figure 19 is the sequential chart of another example of the UL Control on Communication (method 1-4) illustrating the 1st embodiment.

Figure 20 is the flow chart of an example of the UL Control on Communication (method 1-4) of the UE illustrating the 1st embodiment.

Figure 21 is the sequential chart of an example of the UL Control on Communication (method 2-1) illustrating the 2nd embodiment.

Figure 22 is the sequential chart of another example of the UL Control on Communication (method 2-1) illustrating the 2nd embodiment.

Figure 23 is the sequential chart of another example of the UL Control on Communication (method 2-1) illustrating the 2nd embodiment.

Figure 24 is the flow chart of an example of the UL Control on Communication (method 2-1) of the UE illustrating the 2nd embodiment.

Figure 25 is the sequential chart of an example of the UL Control on Communication (method 2-2,2-3) illustrating the 2nd embodiment.

Figure 26 is the sequential chart of another example of the UL Control on Communication (method 2-2,2-3) illustrating the 2nd embodiment.

Figure 27 is the sequential chart of another example of the UL Control on Communication (method 2-2,2-3) illustrating the 2nd embodiment.

Figure 28 is the flow chart of an example of the UL Control on Communication (method 2-2) of the UE illustrating the 2nd embodiment.

Figure 29 is the flow chart of an example of the UL Control on Communication (method 2-3) of the UE illustrating the 2nd embodiment.

Figure 30 is the sequential chart of an example of the UL Control on Communication (method 2-4) illustrating the 2nd embodiment.

Figure 31 is the sequential chart of another example of the UL Control on Communication (method 2-4) illustrating the 2nd embodiment.

Figure 32 is the sequential chart of another example of the UL Control on Communication (method 2-4) illustrating the 2nd embodiment.

Figure 33 is the flow chart of an example of the UL Control on Communication (method 2-4) of the UE illustrating the 2nd embodiment.

Figure 34 is the sequential chart of an example of the UL Control on Communication (method 3-3) illustrating the 3rd embodiment.

Figure 35 is the sequential chart of another example of the UL Control on Communication (method 3-3) illustrating the 3rd embodiment.

Figure 36 is the flow chart of an example of the UL Control on Communication (method 3-3) of the eNB10 illustrating the 3rd embodiment.

Figure 37 is the flow chart of an example of the UL Control on Communication (method 3-3) of the UE illustrating the 3rd embodiment.

Label declaration

10 wireless base stations (eNB)

11 dual-mode antennas

12 receiving and transmitting parts

13 buffer units

14UL synchronizes detection unit

15 timer management portions

151UL synchrotimer (TA timer)

16UL department of resource management

20 wireless terminals (UE)

21 dual-mode antennas

22 receiving and transmitting parts

23 buffer units

24UL synchronizes detection unit

25 timer management portions

251UL synchrotimer (TA timer)

252 memorizeies

26UL department of resource management

Detailed description of the invention

Hereinafter, referring to the drawings embodiment is illustrated.But, embodiments described below is to be only illustration, does not get rid of the following various deformation do not expressed of application and the meaning of technology.That is, present embodiment can implemented without departing from carrying out various deformation (combining each embodiment etc.) in the range of its purport.

(1) the 1st embodiment

Fig. 1 is the block diagram of an example of wireless (movement) communication system illustrating the 1st embodiment.System illustrated in this Fig. 1 possesses: the eNB10 as wireless base station one example and the UE20, this UE20 as wireless terminal (movement station) example communicates with eNB10 via wireless link in the wireless zone of eNB10.

In this Fig. 1, pay close attention to 1 eNB10 and 1 UE20, but multiple eNB10 and UE20 can be respectively present in above-mentioned wireless communication system.Containing DL (up-link) and the wireless channel of UL (downlink) in above-mentioned wireless link.Can comprise the common signal channel shared by multiple UE and each UE in the wireless channel of above-mentioned DL and UL respectively can the dedicated channel of exclusive use.

As long as it addition, not specified, the structure of eNB10 and UE20 illustrated in Fig. 1 the 2nd and the 3rd embodiment afterwards is also general.Additionally, be it is also assumed that wireless base station 10 in this example is the eNB in the LTE of part or all of function possessing radio network control apparatus (RNC), but can also be than LTE previous generation (not combining the function of RNC) base station.In addition to this it is possible to be the base station of other system defining random access procedure.

(1.1) explanation of eNB

Exemplarily, eNB10 possesses: dual-mode antenna 11, receiving and transmitting part 12, buffer 13, UL synchronize detection unit 14, department of resource management 16 of timer management portion 15 and UL.

Dual-mode antenna 11 is (following, the most only it is expressed as " antenna 11 ") send the DL wireless signal that the UE20 can being present in the wireless zone (community or sector) that eNB10 is provided receives, on the other hand, the UL wireless signal that UE20 is sent is received.

The transmission that the transmission data of UE20 to be sent to are implemented (comprise user data, control data etc.) regulation by receiving and transmitting part 12 processes, and generates the signal of wireless channel, and exports to dual-mode antenna 11.Exemplarily, above-mentioned transmission processes and can comprise: DL sends the coding of data, the modulation of coded data, modulated signal is mapped to predetermined channel frame, frame signal frequency is converted to wireless frequency (up-conversion), the power amplification etc. of radio frames.Above-mentioned radio frames such as can be applied based on OFDM (OrthogonalFrequencyDivisionMultiplexing, or the radio frames of OFDM (OrthogonalFrequencyDivisionMultipleAccess, OFDMA) OFDM).

It addition, the reception that the UL wireless signal (radio frames) that antenna 11 is received by receiving and transmitting part 12 implements regulation processes, obtain the UL data (comprise user data, control data etc.) that UE20 is sent.Exemplarily, above-mentioned reception processes and can comprise: receive signal low noise amplification, be baseband frequency (down coversion), gain-adjusted by frequency transformation, demodulate, decoding etc..Additionally, receiving and transmitting part 12 functionally can possess sending part and acceptance division respectively.

Buffer unit 13 preserves UL temporarily and receives data and/or DL transmission data.

Timer management portion 15 generate to the UE20 cycle send (notice) as send timing adjustment information one example TA (TimeAlignment: time alignment) value, to guarantee the synchronization of (maintenance) UL.For having carried out calling and setting and being assigned with the UE20 of the Radio Resource (UL resource) used when UE20 sends UL data, carry out the generation of this TA value, notice.

TA value is the one of control information used to make the UL data of UE20 send timing and the UL data receiver of eNB10 timing consistent (synchronization).That is, TA value is used the UL of UE20 is sent when timing is adjusted so that process can be received with suitable timing in receiving and transmitting part 12.Therefore, UE20 regulates UL according to the TA value received from eNB10 and sends timing, it is possible to guarantee that UL synchronizes.

UE20 is not limited to rest on same position, so TA value is distance (position of UE20) the corresponding variable value between eNB10 and UE20.Thus, guarantee that (maintenance) UL synchronizes for UE20, it is desirable to be updated periodically TA value.

As realizing an example of this renewal, eNB10 periodically generates TA value corresponding with the position of UE20 and notifies to UE20.The DL control signal being used for this notice is referred to as TA instruction.ENB10, in order to grasp the position of UE20, can use the UL control signal received from UE20.Control signal for this mensuration is known signal, such as SRS (SoundingReferenceSignal: detection reference signal).

It addition, timer management portion 15 has UL synchrotimer (TA timer) 151.This TA timer 151 is to start as opportunity UE20 transmission (notice) TA value.Timer management portion 15 monitors its timer value.UE20 moves along with it and changes position, so notifying that the TA value of UE20 is not the most effective.Therefore, TA timer 151 (timing alignment timer) is used to monitor the expiry date of the TA value notifying UE20.Whenever generating, notifying new TA value, restart TA timer 151.

UL synchronizes detection unit (control portion) 14 and monitors TA timer 151 (timer value), in order to, when receiving UL data or when sending DL data, be received by UL and confirm response, and determine whether to guarantee (maintenance) UL synchronization.Such as, when TA timer 151 full journey (overtime), even if ensure that (lower layer) UL synchronization that (maintain) is actual, also it is judged to that losing UL synchronizes.

UL department of resource management 16 manages in the UL resource (such as, channel frequency and time (transmitting-receiving timing) etc.) carrying out use in UL communication (also comprising communication during Stochastic accessing) with UE20 and distributes and release.When to the form of above-mentioned radio frames application OFDMA mode, the management of above-mentioned Radio Resource is equivalent to manage the configuration (mapping) in the 2 dimension transmitting-receiving regions (referred to as burst (burst)) specified by sub-channel frequencies and symbol time.

Exemplarily, above-mentioned UL resource can comprise for UL control channel (PUCCH:PhysicalUplinkControlChannel: Physical Uplink Control Channel) special for UE20 and for eNB10 estimation channel and the resource of the SRS measuring above-mentioned UE20 position etc..It addition, PUCCH resource can be included in the resource that UE20 used when eNB10 sends CQI (ChannelQualityInformation: channel quality information), SRI (SchedulingReqUEstIndicator: dispatch request index).

CQI resource is used for the reception state (quality) to eNB10 report UE20.ENB10 can suitably control the transmission (sending data volume, modulation system, encoding rate etc.) of DL according to the CQI received from UE20.

SRI resource is used in the case of ensure that UL synchronizes, and UE20 informs to eNB10 and creates UL data in UE20.The UE20 of unallocated SRI resource can perform Stochastic accessing and inform to eNB10 and create UL data.Additionally, for not guaranteeing the UE20 that UL synchronizes, in the case of creating UL data, Stochastic accessing can be performed and informs to eNB10 and create UL data.

UL department of resource management 16 is in the case of TA timer 151 time-out, it is allowed to PUCCH resource (CQI resource, SRI resource) and the distribution of SRS resource of UE20 has been distributed in release.

(1.2) explanation of UE

On the other hand, exemplarily, the UE20 shown in Fig. 1 possesses: dual-mode antenna 21, receiving and transmitting part 22, buffer 23, UL synchronize detection unit 24, department of resource management 26 of timer management portion 25 and UL.

Dual-mode antenna 21 (hreinafter referred to as " antenna 21 ") sends the UL wireless signal going to eNB10 in the wireless zone (community or sector) that eNB10 is provided, and on the other hand, receives the DL wireless signal that eNB10 is sent.

Receiving and transmitting part 22 processes the signal generating wireless channel to the transmission sending UL transmission data (comprise user data, control data etc.) the enforcement regulation to eNB10, and output is to dual-mode antenna 21.Exemplarily, above-mentioned transmission process can comprise: UL send the coding of data, the modulation of coded data, modulated signal is mapped to predetermined channel frame, frame signal frequency is transformed into wireless frequency (up-conversion) and amplify radio frames power etc..

It addition, the reception that the DL wireless signal (radio frames) that receiving and transmitting part 22 is to being received by antenna 21 implements regulation processes, obtain eNB10 and send the DL data (comprise user data, control data etc.) come.Exemplarily, above-mentioned reception processes and can comprise: receive signal low noise amplification, frequency is transformed into baseband frequency (down coversion), gain-adjusted, demodulate, decoding etc..Additionally, receiving and transmitting part 22 functionally can possess sending part and acceptance division respectively.

Buffer unit 23 preserves UL temporarily and sends data and/or DL reception data.

Timer management portion 25 has the UL synchrotimer (TA timer) 251 as eNB10, by management (supervision) its timer value, monitors the expiry date of TA value.In the case of receiving TA instruction from eNB10, TA timer 251 starts or restarts.But, in random access procedure (connection process) based on competition in the case of eNB10 receives new TA value, it is also possible to trust the TA value of the TA instruction received before above-mentioned random access procedure starts from eNB10.In this case, it is allowed to ignore the TA value received in the random access procedure, also allow for not restarting the control of TA timer 251.It addition, timer management portion 25 possesses memorizer 252, the TA value received from eNB10 in the random access procedure is stored in advance in this memorizer 252, in case use afterwards.

UL synchronizes detection unit (control portion) 24 and monitors TA timer 251 (timer value), when carrying out UL data and sending, it is determined whether guarantee (maintenance) UL synchronization.In the case of TA timer 251 has timed out, it is determined that synchronize for losing UL.Therefore, in the case of ignoring the TA value received in the random access procedure from eNB10, sometimes TA timer 251 time-out and be judged to lose UL in the way of random access procedure and synchronize.

UL department of resource management 26 manages the UL resource from eNB10 distribution and release thereof.In the case of TA timer 251 time-out, UL synchronization detection unit 24 are judged to that losing UL synchronizes, UL department of resource management 26 allows the UL resource that release is distributed.

(1.3) random access procedure based on competition

Hereinafter, being substantially connected between employing Fig. 2～Fig. 4 illustrates as above-mentioned eNB10 with UE20 processes the random access procedure based on competition of an example.Fig. 2 is the sequential chart of random access procedure one example being illustrated based on competition.Fig. 3 is the flow chart illustrating random access procedure one example based on competition in UE20, and Fig. 4 is the flow chart illustrating random access procedure one example based on competition in eNB10.

When creating UL data in UE20, (when sending for the first time of UE20) and the DL data that send to UE20 arrive eNB10 and when eNB10 receives the call-in reporting of DL data etc., perform random access procedure based on competition.The former situation of the flowchart illustration of Fig. 3, the situation of flowchart illustration the latter of Fig. 4.

As illustrated in fig. 3, when producing UL data in UE20, UE20 synchronizes detection unit 24 by UL and determines whether to ensure that UL synchronizes (process 1101～process 1103).

As result of determination, when not guaranteeing that UL synchronizes (being "No" processing in 1103), UE20 selects 1 by UL department of resource management 26 from pre-prepd multiple signatures (lead code).In order to reduce the probability selecting same signature between UE as far as possible, can use and carry out the various systems of selection such as selection according to produced random number.Selected signature packets is contained in message #1 (RA lead code), is sent to eNB10 (process 1104 of the process 1011 and Fig. 3 of Fig. 2) by RACH from receiving and transmitting part 22.

When eNB10 receives above-mentioned message #1, corresponding response message #2 (RA response) is sent to UE20 (process 1012 of Fig. 2).This RA response #2 can comprise: what eNB10 can receive the identifiers UL common signal channel corresponding with this signature of one or more signatures of (judgement) sends the identifier etc. permitted, distribute to identify later RA communication object (UE20) temporarily.This identifier is referred to as temporary-connectionradionetworktemporaryidentifier (T-CRNTI) (interim connection wireless network temporary indentification).

When UE20 receives (process 1105 of Fig. 3) when RA responds #2 from eNB10, it is confirmed whether to comprise the identifier of the signature sent by above-mentioned message #1 in this reception information.

In the case of comprising identifier, the transmission license corresponding with the signature that self sends that UE20 is comprised according to this RA response #2, carries out the transmission (ScheduledTransmission: scheduled transmission) (process 1106 of the process 1013 and Fig. 3 of Fig. 2) of message #3.This message #3 is to comprise the signal of the dispatch request to eNB10, systemarchitectureevolution (the SAE of identiflication number one example as UE20 can be comprised, system architecture evolution)-temporarymobilesubscriberidentity (S-TMSI, temporary mobile subscriber identity) etc..

Here, UE20 selects signature by above-mentioned message #1, but may produce multiple UE20 and use same signature to send the situation of message #1 to eNB10 simultaneously.

Which in this case, though eNB10 can not differentiate these UE20, but can identify between UE20, create signature competition by receiving the identification information (numbering) (S-TMSI) sent by above-mentioned message #3 by UE20.Therefore, eNB10 may select any one UE20 and solves competition.The standard of this selection can use the received electric field strength of message #1.Such as, the UE20 that the received electric field strength of eNB10 selection message #1 is bigger than other.

ENB10 sends message #4 (ContentionResolution: contention resolved) (process 1014 of Fig. 2) to the UE20 selected by contention resolved.The information of the S-TMSI etc. sent by message #3 can be comprised in this message #4.

When UE20 receives above-mentioned message #4 from eNB10 (process 1107 of Fig. 3), check whether and there is competition (checking whether the identification information comprising self) (process 1108 of Fig. 3) with other UE20, without producing competition, then terminate UL connection and process (the "No" path of the process 1108 of Fig. 3).After, UE20 uses the temporary indentification (T-CRNTI) of above-mentioned interim distribution to communicate with eNB10 as the identifier (C (cell)-RNTI) determined.

On the other hand, as the result receiving message #4, time (processing 1111) when there is competition (not comprising the identification information of self) between other UE20 (in the case of "Yes" in process 1108), specified by the standby rollback of this UE20 (backoff).So-called rollback is exactly the information specifying UE20 to retry timing (stand-by time) based on the random access procedure competed.

The parameter of rollback is notified by message #2, can thus reduce, by changing its rollback for each UE20, the probability again producing competition when retrying.Specifically, by the maximum Backoff time of message #2 notice, UE20 calculates Backoff time in this time range.Can use in this computation and such as use the various computational methods such as random number.

Then, UE20 checks retrying by random access procedure next time, and whether number of retries exceedes maximum times (processing 1112).Without exceeding (processing in 1112 as "No"), then UE20 performs the process that above-mentioned process 1103 is later, retries random access procedure (carrying out the transmission of message #1).In the case of exceeding (in the case of being "Yes" in process 1112), UE20 notifies this situation (processing 1113) to upper layer.Above-mentioned upper layer e.g. belongs to the radio resource of layer 3 and controls (radioresourcecontrol, RRC) layer.

The upper layer receiving above-mentioned notice starts the watchdog timer that the continuation (retrying) to Stochastic accessing monitors.When this watchdog timer time-out, what the upper layer of UE20 performed the eNB10 (community) to UL connection request (transmission of message #1) destination reelects controls (community selects control or community to reselect control).

Additionally, in above-mentioned process 1103, in the case of ensure that UL synchronization (in the case of being "Yes" in process 1103), UE20 checks that PUCCH resource (SRI resource) is assigned (processing 1109) the most.If be assigned (processing in 1109 as "Yes"), then UE20 uses SRI resource to be sent by SRI (UL data sending request) to eNB10 (processing 1110).

Without distribution SRI resource (being "No" processing in 1109), then UE20 sends message #1 to eNB10, and performs random access procedure.That is, even if in the case of being judged to establish synchronization in process 1103, when there is no SRPUCCH resource, there is also the situation performing random access procedure.

On the other hand, Fig. 4 exemplified be sent to UE20 DL data arrive eNB10 and from eNB10 to UE20 carry out DL data call-in reporting time, the random access procedure of eNB10.

That is, when the DL data being sent to UE20 arrive eNB10 (processing 1201), eNB10 synchronizes detection unit 14 by UL and determines whether to ensure that UL synchronizes (process 1202 and process 1203).Without guaranteeing that UL synchronizes (processing in 1203 as "No"), the then situation (processing 1204) that eNB10 arrives to UE20 notice DL data.

Can also comprise dedicated preamble in this notice (call-in reporting), but not comprise dedicated signatures (dedicated preamble) in UE20 in the present embodiment.Therefore, the UE20 receiving above-mentioned call-in reporting performs above-mentioned random access procedure based on competition.Now, before having in the case of the UL resource of distribution, discharge this UL resource, and after Stochastic accessing success, from the UL resource that eNB10 distribution is new.

When eNB10 receives message #1 (RA lead code) from the UE20 having had started to random access procedure based on competition (processing 1205), responded (message #2) and returned to UE20 (processing 1206).

Then, (1207 are processed) when receiving message #3 from UE20, eNB10 checks whether have message collision (processing 1208), without then message #4 being sent to UE20 (from the "No" path of process 1208 to processing 1209).If having message collision ("Yes" processing in 1208), then eNB10 does not carry out the transmission of message #4 and just terminates random access procedure.

It is above the basic process of Stochastic accessing based on competition.Here, suppose that eNB10 can not the situation of value (the TA timer 151 of eNB10 is asynchronous with the timer value of the TA timer 251 of UE20) of TA timer 251 in correct management UE20.

Exemplarily, it is considered to the TA timer 251 of UE20 continues timing, but owing to eNB10 cannot grasp this continuation timing, therefore eNB10 is mistakenly considered the situation of TA timer 251 time-out of UE20.

Fig. 5～Fig. 7 (Fig. 9～Figure 11, Figure 13～Figure 15, Figure 17～Figure 19) illustrates one example.When eNB10 carries out calling and setting and UL resource (such as, SRI resource #1, CQI resource #1, SRS resource #1) distribution to UE20 (processing 1008), periodically send TA instruction (processing 1009) to UE20.Receive this TA and instruct (TA value=TA#1；1st timing adjustment information) UE20 start TA timer 251.

UE20 according to carrying out the transmission of UL by the TA#1 of above-mentioned TA instruction notification, and after this transmission terminates, when the DL data being sent to UE20 arrive eNB10, eNB10 carries out call-in reporting (transmission of message #0) (processing 1010) to UE20.The UE20 receiving this call-in reporting #0 synchronizes and resource in order to ensure UL, starts based on the random access procedure of competition.

That is, message #1 comprising selected signature (random lead code) is sent to eNB10 (process 1011) by UE20, receives the eNB10 of this message #1 and RA responds #2 is back to UE20 (processing 1012).Now, eNB10 is by new TA value (TA#2；2nd timing adjustment information) it is included in RA response #2.

The UE20 receiving this RA response #2 can apply new TA#2 to restart TA timer 251, but can also allow as described above to ignore this TA#2.In the case of ignoring, message #3 sometimes after sends (processing 1013) and message #4 receives between (processing 1014), TA timer 251 time-out.

In this case, after UE20 being judged to lose whole UL resources that UL synchronizes and release is guaranteed so far, it is impossible to enough send the UL data beyond RACH.

Therefore, in this example, in the case of TA timer 251 time-out in random access procedure based on competition, guarantee that UL synchronizes and UL resource as follows.Additionally, in the accompanying drawing that explanation (also comprising other embodiment described later) is used afterwards, as long as not illustrating, be labelled with the process that the same process processing numbering represents same or like.

(1.4) situation of competition with other UE20 is not produced when receiving message #4

Show there is no generation with in the situation (the successful situation of Stochastic accessing) of the competition of other UE20, the UE20 performing Stochastic accessing can be guaranteed the situation of special UL resource.But, owing to TA timer 251 is in timeout mode, therefore can not be referred to as can ensure that UL synchronizes.

Therefore, any one during UE20 uses 4 methods 1-1 shown below～1-4 guarantees that UL synchronizes.

(1.4.1) method 1-1 (Fig. 5～Fig. 8)

As illustrated in Fig. 8, the TA value (TA#2) received by above-mentioned message #2 in random access procedure based on competition is prestored in the memorizer 252 in timer management portion 25 (processing 1105a) by UE20.

In addition, UE20 (UL department of resource management 26) loses in the case of UL synchronizes identifying, and discharges to process based on the transmission receiving TA#1 before starting Stochastic accessing based on competition and is used (before Stochastic accessing starts from eNB10 distribute) UL resource.

The most as shown in Figure 5, this release timing can be the timing (identifying the timing that the management of UL synchronization is inconsistent with eNB10) (processing 2001) receiving above-mentioned call-in reporting message #0, or as shown in Figure 6, this release timing can also be the timing (processing 2002) of TA timer 251 time-out.But, even if as it is shown in fig. 7, TA timer 251 is overtime, it is also possible to do not discharge this UL resource and keep the state (being continuing with) (processing 2003) guaranteed.

Then, UE20 continues random access procedure based on competition, when the reception success of message #4, the TA value (TA#2) that memorizer 252 is stored by UE20 is applied to UL and sends, and restarts TA timer 251 (from the "No" path of process 1108 to processing 1114).

That is, after TA timer 251 time-out, during Stochastic accessing, UE20 comprises message #2 (response signal) of the T-CRNTI as its own identification information one example as opportunity to receive, it is allowed to application TA#2.Additionally, so-called " application TA value " is exactly to control the transmission (execution of Stochastic accessing) of UL according to the timing that sends shown in TA value.Such as, this control (the most too) can be realized as a function of UL synchronization detection unit 24.

Now, the value of TA timer 251 can be setting, it is also possible to set according to the reception timing of message #2.For example, it is possible to make UL synchronize the success when the reception of message #2, deduct the time needed for the reception receiving message #4 of message #2 from setting, set the value of TA timer 251.This represents makes timer value (expiry date of timing adjustment information) in advance notify the time till notified Stochastic accessing result from received TA#2 by message #2.

The most in this example, in the case of UE20 carries out the Stochastic accessing to eNB10 according to TA#1, during this Stochastic accessing, when receiving TA#2, process in TA timer 251 time-out (expiry date of TA#1) former transmission, TA#1 is applied to send the regulation of timing.Process for transmission (after the expiry date of TA#1) after TA timer 251 time-out, TA#2 is applied to send the regulation of timing.

Thus, even if not carrying out the immediate updating sending timing based on TA#2, it is also possible to after more than the expiry date of TA#1 (after time-out), application TA#2 is transmitted controlling.

Then, the confirmation response message (ACK or NACK) for message #4 is returned to eNB10 (processing 1015) by UE20.If eNB10 receives ACK as the confirmation response message for message #4, then new UL resource (such as, SRI resource #2, CQI resource #2, SRS resource #2) is distributed to UE20 (processing 1016).

Additionally, as illustrated in Fig. 7, even if in the case of TA timer 251 time-out of UE20 does not the most discharge UL resource, UE20 can be continuing with guaranteed UL resource, it is also possible to replace the new UL resource (processing 1017) of this UL resource to eNB10 request distribution.

UE20 manages the UL resource distributed in UL department of resource management 26, after, use this UL resource to carry out the UL to eNB10 and send.

(1.4.2) method 1-2 (Fig. 9～Figure 12)

As the 2nd method, as illustrated in Fig. 9～Figure 12, the TA value (TA#2) received by message #2 is stored in advance in memorizer 252 (processing 1105a) by UE20.Then, it is assumed that from sending message #3 (processing 1013) to period TA timer 251 time-out receiving message #4 (processing 1014).

In the case, UE20 is not to wait for the reception of message #4, and the TA value (TA#2) stored by memorizer 252 is applied to UL and sends, and restarts TA timer 251 (from the "Yes" path of the process 1161 of Figure 12 to processing 1162).The opportunity restarted can with the time-out of TA timer 251 simultaneously.That is, when TA timer 251 time-out (expiry date of TA#1), it is allowed to the TA#2 that application is received by message #2.

Thus, even if not carrying out the immediate updating sending timing based on TA#2, it is also possible to when the expiry date more than TA#1 (during time-out), application TA#2 is transmitted controlling.

(1.4.3) method 1-3 (Figure 13～Figure 16)

As the 3rd method, as illustrated in Figure 13～Figure 16, it is assumed that comprise new TA value (TA#3) (the process 1107a processing 1014a, Figure 16 of Figure 13～Figure 15) when eNB10 sends message #4.

I.e., when UE20 carries out the Stochastic accessing to eNB10 according to TA#1 (the 1st sends timing adjustment information), during this Stochastic accessing, eNB10 comprises TA#3 (the 2nd sends timing adjustment information) in transmission to message #4 (signal of the S-TMSI comprising identification information one example as UE20) of UE20.

When UE20 receives this message #4 from eNB10, the TA value (TA#3) this message #4 comprised is applied to UL and sends, and starts TA timer 251 (process 1114 of Figure 16).

I.e., in message #4 comprising movement station identification information, generally do not comprise TA value, but in the present embodiment, by being contained within TA value in message #4, the UE20 that thus have ignored the TA#2 received by message #2 can be with the TA value of application message #4, as transmission timing adjustment information afterwards, and start TA timer 251.

The most in this example, the above-mentioned TA#2 ignored can also be stored in memorizer 252 by UE20.

(1.4.4) method 1-4 (Figure 17～Figure 20)

As the 4th method, as illustrated in Figure 17～Figure 20, UE20, with whether to store the TA value (TA#2) received from eNB10 by message #2 unrelated, is received as opportunity to restart TA timer 251 with message #2.

In this case, UE20 continues the Stochastic accessing (UL transmission) (the process 1105b of Figure 20) after the TA value (TA#1) received before starting random access procedure being applied to from eNB10.This be equivalent to control TA timer 251 so that extend during Stochastic accessing before Stochastic accessing starts from eNB10 by TA command reception to UL send timing expiry date.

That is, UE20 in the case of carrying out the Stochastic accessing to eNB10 according to TA#1, during this Stochastic accessing, when receiving TA#2, does not apply TA#2 to continue to apply TA#1, and extends the expiry date of TA#1.

Can be setting (for the value of TA timer 251 of TA#2) additionally, the period extended, it is also possible to be set according to the reception timing of message #2.For example, it is possible to synchronize to deduct from the time received needed for message #2 to TA#1 time-out from UL, set the value of TA timer 251.

According to this example, after TA#2 receives, it is also possible to continue to extend TA#1 and utilize, and can apply to send the regulation of timing.

(1.5) situation of the competition of generation and other UE20 when receiving message #4

In the case of producing the competition with other UE20 when receiving message #4, repeat with the UL resource used by other UE20, it is meant that the machine 20 can not be guaranteed special UL resource.

Therefore, UE20 does not carry out the UL data in addition to RACH and sends, so performing retrying of Stochastic accessing based on competition, attempts to ensure that UL synchronizes (the "Yes" path of the process 1108 of Fig. 3).

(2) the 2nd embodiments

In above-mentioned 1st embodiment, it is assumed that sending message #3 to the period from eNB10 reception message #4, the situation of TA timer 251 time-out of UE20 from UE20.In the present embodiment, it is assumed that receiving message #2 to the period to eNB10 transmission message #3, the situation of TA timer 251 time-out of UE20 from UE20 from eNB10.

Such as, as illustrated in Figure 21～Figure 23, Figure 25～Figure 27 and Figure 30～Figure 32, when the DL data being sent to UE20 arrive eNB10 and UE20 carries out call-in reporting (processing 1010), perform Stochastic accessing based on competition (transmission of message #1: process 1011).In the case, when from eNB10 by message #2 receive the UE20 of TA value (TA#2) ignore this TA#2 time, TA timer 251 time-out before sending message #3 (comprising the signal of the S-TMSI of identification information one example as UE20) sometimes.

In this case, UE20 (UL synchronizes detection unit 24) is judged to that losing UL synchronizes, and any one in 2-1～2-4 continues Stochastic accessing by the following method.

(2.1) method 2-1 (Figure 21～Figure 24)

In UE20 when being judged to that losing UL synchronizes, originally do not carry out the transmission of message #3.But, TA timer 251 is often set to the failure safe (failsafe) of the scope of the UL synchronization not losing in physical layer.Therefore, even if TA timer 251 is overtime, sometimes also ensure that (lower layer) UL of reality synchronizes.

Therefore, in this example, even if UE20 is TA timer 251 time-out after eNB10 receives message #2 (processing 1012), this UE20 still attempts to eNB10 sends message #3 (forcing to send) (Figure 21～Figure 23 processes the process 1105c of 1013a, Figure 24 and process 1106a).I.e., although have timed out, but TA#1 can be applied to send message #3.Additionally, TA#2 can be stored in advance in memorizer 252.

I.e., in the case of UE20 carries out the Stochastic accessing to eNB10 according to TA#1, during this Stochastic accessing, when arriving before the expiry date of TA#1 processes in the transmission carrying out message #3, even if having been received by TA#2 before the expiry date of TA#1 arrives, it is also possible to the transmission performing to send to eNB10 message #3 according to TA#1 processes.

Thus, if eNB10 can receive message #3, then UE20 from from the beginning of amendment Stochastic accessing based on competition, and can continue later random access procedure.That is, if as the response signal for message #3, UE20 has successfully received message #4 comprising its own identification information, then TA#2 can be applied to the transmission timing regulation that hereafter transmission processes, start TA timer 251.Therefore, it is possible to reduce UL data to send delaying before starting.

But, owing to eNB10 is capable of identify that UE20 forces the situation that the what is called sending message #3 violates the rules, therefore by message #4, connection refused message can also be sent to UE20.That is, eNB10 receives after more than the expiry date of TA#1 when UE20 sends, according to TA#1, message #3 come, can send refuse information to UE20.

Now, UE20 execution community selects/reselects or performs retrying of random access procedure.Or eNB10 can also not send message #4.In this case, the repeating transmission of UE20 continuation message #3, until arriving the sending times (common maximum number of retransmissions or the maximum number of retransmissions applied the most in this case) allowed.

(2.2) method 2-2 (Figure 25～Figure 28)

As illustrated in Figure 25～Figure 27, when before sending message #3 (processing 1013) after UE20 receives message #2 (TA#2) (processing 1012), to eNB10, TA timer 251 expires journey, cancel the transmission of message #3, stop (cancellation) executory random access procedure based on competition (processing 1018).

I.e., in the case of UE20 carries out the Stochastic accessing to eNB10 according to TA#1, during this Stochastic accessing, before processing in the transmission carrying out comprising the signal of the S-TMSI identifying information one example as UE20, when the expiry date of TA#1 arrives, even if receiving TA#2 before the expiry date of TA#1 arrives, also stop Stochastic accessing.

In this case, as illustrated in Figure 28, UE20 application rollback performs the retrying of Stochastic accessing based on competition (processing the "Yes" path of 1105d).That is, according to timing based on the Backoff time (standby time information) received from eNB10 in the random access procedure stopped, retrying of Stochastic accessing is performed.As illustrated in Figure 25～Figure 27, UE20 carries out the reception (processing 1012) etc. of the transmission (processing 1011) of message #1, message #2 (TA#3).

Here, when receiving message #2 (TA#2), TA timer 251 time-out (does not start).Therefore, the new TA#3 received by message #2 in the random access procedure retried can be applied to the transmission timing regulation that hereafter UL sends by UE20, starts TA timer 251.When recognizing random access failure (producing conflict) when receiving message #4, TA timer 251 can be forced to terminate (process 2004 of Figure 25～Figure 27).

As in this example, when TA timer 251 time-out, stop random access procedure and perform retrying of Stochastic accessing, thus with by residue process (such as, the transmission of message #3 and the reception of message #4) it is implemented into and finally compares, it is possible to reduce and send delaying before starting in UL data.

(2.3) method 2-3 (Figure 25～Figure 27, Figure 29)

Additionally, in the case of as mentioned above retrying Stochastic accessing based on competition in TA timer 251 time-out, as illustrated in Figure 29, UE20 can not apply rollback and carry out above-mentioned retrying (the "Yes" path processing 1105d).

That is, UE20 can not apply the Backoff time received in the random access procedure stopped from eNB10, and performs retrying of Stochastic accessing.Because not applying rollback, so compared with the situation of application rollback, reducing and send delaying before starting in UL data.

(2.4) method 2-4 (Figure 30～Figure 33)

Additionally, as illustrated in Figure 30～Figure 32, in the case of TA timer 251 has timed out, UE20 can carry out notifying (process 1021, from the "Yes" path of the processs 1105d of Figure 33 to process 1113) in spite of rollback to upper layer (such as, rrc layer).

Thus, the upper layer of UE20 starts the watchdog timer of Stochastic accessing, and monitors the continuation (retrying) of random access procedure.That is, UE20 carries out the supervision of Stochastic accessing according to the time-out (expiry date of TA#1 arrives) of TA timer 251.In the continuation of Stochastic accessing, when watchdog timer time-out, the upper layer of UE20 performs community selection or community reselects process (process 1022 of Figure 30～Figure 32).

Therefore, UE20 can start and the Stochastic accessing of other community (eNB10) in early days, it is possible to decrease sends delaying before starting in UL data.Additionally, monitor with the Stochastic accessing of the TA timer 251 corresponding upper layer of time-out and can be applicable to said method 2-1～2-3.

(3) the 3rd embodiments

Then, in the present embodiment, it is assumed that eNB10 can correctly manage the situation (situation that two TA timers 151,251 of eNB10 and UE20 synchronize) of the timer value of the TA timer 251 in UE20.In this case, eNB10 can recognize that the situation that the timing of the TA timer 251 of UE20 is continuing, so the believable TA value received from eNB10 of UE20.Additionally, different from the 1st embodiment and the 2nd embodiment, can expect to send TA value from eNB10.

Further, after UE20 finishes UL data based on the TA value arrived by TA command reception transmission, when the DL data being sent to UE20 arrive eNB10, eNB10 carries out call-in reporting (transmission of message #0) to this UE20.

Thus, the UE20 receiving this call-in reporting starts based on the random access procedure of competition.Then, when from receiving message #2 (processing 1012) period to transmission message #3 (processing 1013), when the TA timer 251 of UE20 is overtime, any one in UE20 3-1～3-3 by the following method guarantees that UL synchronizes.

(3.1) method 3-1

As method 1-2 (Fig. 9～Figure 12) described in the 1st embodiment, the TA value received by message #2 from eNB10 in the random access procedure is prestored in memorizer 252 by UE20.Further, before by message #3 transmission to eNB10 during TA timer 251 time-out, the TA value being stored in advance in memorizer 252 is applied to UL and sends, start TA timer 251.

(3.2) method 3-2

UE20 performs any one in method 2-1 that described of the 2nd embodiment～2-4.

(3.3) method 3-3 (Figure 34～Figure 37)

As illustrated in Figure 34 and Figure 35, in the case of UE20 carries out the Stochastic accessing to eNB10 according to TA#1, during this Stochastic accessing, send the signal (message #3) (processing 1013) comprising the S-TMSI identifying information one example as UE20.

Before TA timer 251 time-out of UE20, eNB10 (processes 1013) in the random access procedure when UE20 receives this message #3, using the reception of this message #3 as opportunity, sends to UE20 and comprises new TA value (TA#3；2nd timing adjustment information) the TA instruction process 1208a of 1009a, Figure 36 (process).

On the other hand, even if UE20 also monitors the reception that TA instructs in the execution of Stochastic accessing.Such as, after eNB10 be have sent message #3 (processing 1013), monitor the reception of the TA instruction from eNB10.In this supervision, (1009a is processed when receiving TA instruction from eNB10, the process 1161 of Figure 37), the TA value (TA#3) that the TA received instructs is applied to UL and sends by UE20 (timer management portion 25), and starts TA timer 251 (process 1162 of Figure 37).

Additionally, the management of the UL resource in UE20 can be identical with the 1st or the 2nd embodiment.For example, it is possible to when receiving call-in reporting (message #0) of DL data from eNB10, the UL resource that release is guaranteed so far, or this UL resource can also be discharged when TA timer 251 time-out.Even if it addition, the TA timer 251 time-out expiry date of the TA#1 (arrive) before receiving TA#3, it is also possible to do not discharge the UL resource guaranteed so far and maintain (being continuing with) (process 2005 of Figure 35).

It addition, in the case of transmission message #3 to the period TA timer expired of reception message #4, UE20 can be in the way of application be identical with the 1st embodiment (any one of method 1-1～method 1-4).

Claims

1. the up sending control method in mobile communication system, this mobile communication system possesses movement station and base station, it is characterised in that described up sending control method has steps of:

2. the mobile communication system possessing movement station and base station, it is characterised in that

Described movement station has:

Mobile communication system the most according to claim 2, it is characterised in that

Described base station has ascending resource management department, and this ascending resource management department, between described movement station and base station, distributes the multiple parameters relevant with physical uplink control channel resource that transmission processes.

4. the described movement station possessed in the mobile communication system of movement station and base station, it is characterised in that

Described movement station has: