CN103561459A - Mobile communication system, mobile station, base station and timing adjustment method - Google Patents
Mobile communication system, mobile station, base station and timing adjustment method Download PDFInfo
- Publication number
- CN103561459A CN103561459A CN201310499625.2A CN201310499625A CN103561459A CN 103561459 A CN103561459 A CN 103561459A CN 201310499625 A CN201310499625 A CN 201310499625A CN 103561459 A CN103561459 A CN 103561459A
- Authority
- CN
- China
- Prior art keywords
- mobile radio
- radio station
- mentioned
- transmission
- regularly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a mobile communication system, a mobile station, a base station and a timing adjustment method. The mobile station (20) conducts connection processing on the base station (10) according to first sending timing adjustment information (TA#1); in a connection processing procedure, when second sending timing adjustment information (TA#2) is received, the information (TA#1) is applied to sending timing adjustment as for sending processing before the valid period of the first sending timing adjustment information (TA#1), and the second sending timing adjustment information (TA#2) is applied to sending timing adjustment as for sending processing after the valid period of the information (TA#1).
Description
The application is that application number is 200880129608.7 application for a patent for invention (international application no: PCT/JP2008/060151, the dividing an application applying date: on 06 02nd, 2008, denomination of invention: timing adjusting method, mobile radio station, base station and mobile communication system).
Technical field
The present invention relates to timing adjusting method, mobile radio station, base station and mobile communication system.The present invention is sometimes for the up (up link: UL) Control on Communication of wireless (movement) communication system.
Background technology
As wireless (movement) communication system that comprises the wireless terminals such as mobile phone (mobile radio station), provide at present the 3rd third-generation mobile communication service of employing Code Division Multiple Access (CDMA) (CDMA:code division multiple access) mode.On the other hand, also studied the next generation mobile communication mode that can carry out more high-speed communication.In third generation partner program (3GPP:3rd Generation Partnership Project), as long-term evolution (LTE:Long Term Evolution), carry out the research of next generation mobile communication mode.
In mobile communication system, when wireless base station (evolved Node B:eNB, enode b) and mobile radio station (User Equipment:UE, subscriber equipment) start to communicate by letter, prepare the channel using when UE starts to send to eNB.In 3GPP, this channel is called Random Access Channel (RACH), and the communication beginning process based on RACH is called random access (RA).
Random access in LTE designs according to Slotted Aloha mode, and guarantees for sending the time/frequency resource of RACH.In RACH, comprise the information from the transmission of UE for eNB identification.That is, in order jointly to use RACH in a plurality of UE, and comprise the identifier that is called as signature (or lead code).
UE adopts the arbitrary signature in a plurality of signature candidates to send, even if different UEs is used same time frequency resource to send signature via RACH thus, as long as each UE adopts different signatures, eNB just can identify UE according to the signature receiving.
In addition, when communication starts, use RACH, use dedicated channel (or common signal channel) later.
As UE, carry out the opportunity of random access, (while producing down link (DL) data) in the time of when being first transmission (caller), from eNB incoming call, while switching, while connecting the recovery removing when communication (restart to have interrupted) etc.In addition, the wireless link from eNB to UE direction is down link (DL), and its rightabout wireless link is up link (UL).
Here, while recovering while sending for the first time or after connect removing etc., sometimes cannot be to existing but the UE that eNB can not manage distribute can exclusive use dedicated signatures.Such UE for example, selects one to access at random from pre-prepd a plurality of (64 kinds) signature.Therefore,, although probability is low, likely cause that a plurality of UE are used same signature to carry out the situation of random access simultaneously.Such accidental access method is called the random access procedure (contention based random access procedure) based on competition.
Now, eNB solves the signature (UE) of (selection) competition, and responds to selected UE.UE, according to the above-mentioned response receiving from eNB, judges whether self is selected by eNB.The UE that selected by eNB continues to communicate (random access procedure) with eNB, carry out and eNB between wireless channel setting etc.The UE not selected by eNB is accessing through after certain hour, execution is random again.
In addition,, in the situation that UE carries out the switching (handover) that switching connects destination eNB, when producing such signature conflict, connect moment disconnection or according to circumstances cut off communication.Therefore, proposed in LTE, the UE switching to be allocated in advance the scheme of dedicated signatures.Such accidental access method becomes the non-random access procedure (non-contention based random access procedure) based on competition.
[non-patent literature 1]: 3GPP TS36.321V8.1.0, " Evolved Universal Terrestrial Radio Accesss(E-UTRA); Medium Acces Control(MAC) protocol specification "; [online]; on March 20th, 2008; [retrieval on May 22nd, 2008], the Internet <URL:http: //www.3gpp.org/ftp/Specs/html-info/36321.htmGreatT.GreaT.G T
In prior art, in the process (carrying out in way) of random access, sometimes owing to sending, regularly regulate valid expiration date of information to expire etc., and in sending adjusting regularly etc. generation unfavorable condition.
Summary of the invention
Therefore, the object of the invention is to solve the unfavorable condition of generation in the transmission that regulates from base station to terminal (mobile radio station) regularly etc.
As one of other object, be reduced in mobile radio station and be connected with base station and can start the communication delay time before.
In addition, the present invention is not limited only to above-mentioned purpose, can also orientate following action effect one of as other object, that is, the action effect as being derived by each structure shown in aftermentioned execution mode, can play the action effect that prior art cannot obtain.
For example, adopt following means.
(1) can adopt the timing adjusting method in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing according to transmission timing adjusting information, and the base station that receives the signal sending from this mobile radio station, wherein, above-mentioned mobile radio station carries out the connection processing to above-mentioned base station in the situation that send regularly adjusting information according to the 1st, at this, connect in the process of processing, when receiving the 2nd, send while regularly regulating information, for the above-mentioned the 1st, send the former transmission processing of valid expiration date that regularly regulates information, by the above-mentioned the 1st, send regularly adjusting information and be applied to send adjusting regularly, for the above-mentioned the 1st transmission processing sending after the valid expiration date that regularly regulates information, by the above-mentioned the 2nd, send regularly adjusting information and be applied to send adjusting regularly.
(2) can adopt the timing adjusting method in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing according to transmission timing adjusting information; And the base station that receives the signal sending from this mobile radio station, wherein, in the situation that sending regularly adjusting information according to the 1st, above-mentioned mobile radio station carries out the connection of above-mentioned base station to process, in above-mentioned connection processing procedure, from above-mentioned base station, be sent to the signal of identifying information this mobile radio station, that comprise this mobile radio station, comprise the 2nd and send regularly adjusting information.
(3) can adopt the timing adjusting method in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing according to transmission timing adjusting information; And the base station that receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, when receiving the 2nd, send while regularly regulating information, above-mentioned mobile radio station is not applied the 2nd transmission timing adjusting information and is continued to apply regularly adjusting information of above-mentioned the 1st transmission, and extends the valid expiration date that the 1st transmission timing regulates information.
(4) can adopt the timing adjusting method in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing according to transmission timing adjusting information; And the base station that receives the signal sending from this mobile radio station, wherein, above-mentioned mobile radio station carries out the connection processing to above-mentioned base station in the situation that send regularly adjusting information according to the 1st, at this, connect in the process of processing, while arriving before the 1st sends the transmission processing of the signal that regularly regulates the identifying information that valid expiration date of information comprising this mobile radio station, above-mentioned mobile radio station sends according to the above-mentioned the 1st the transmission processing that regularly regulates this signal of information and executing.
(5) can adopt the timing adjusting method in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing according to transmission timing adjusting information; And the base station that receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, while arriving before the 1st sends the transmission processing of the signal that regularly regulates the identifying information that valid expiration date of information comprising this mobile radio station, above-mentioned mobile radio station is ended above-mentioned connection and is processed.
(6) can adopt the timing adjusting method in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing according to transmission timing adjusting information; And the base station that receives the signal sending from this mobile radio station, wherein, in the situation that sending regularly adjusting information according to the 1st, above-mentioned mobile radio station carries out the connection of above-mentioned base station to process, at this, connect in the process of processing, above-mentioned mobile radio station sends the signal of the identifying information that comprises this mobile radio station, when above-mentioned base station receives this signal, above-mentioned base station, with the opportunity that is received as of this signal, sends regularly adjusting information by the 2nd and is sent to above-mentioned mobile radio station.
(7) can adopt the mobile radio station in mobile communication system, this mobile communication system possesses: mobile radio station, with the base station that receives the signal sending from this mobile radio station, wherein, this mobile radio station possesses: transmission processing portion, and it carries out the transmission processing to above-mentioned base station according to sending regularly adjusting information, and control part, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, when receiving the 2nd, send while regularly regulating information, for the above-mentioned the 1st transmission processing that sends the above-mentioned transmission processing portion before the valid expiration date that regularly regulates information, this control part sends regularly adjusting information by the above-mentioned the 1st and is applied to send adjusting regularly, for the above-mentioned the 1st transmission processing that sends the above-mentioned transmission processing portion after the valid expiration date that regularly regulates information, this control part sends regularly adjusting information by the above-mentioned the 2nd and is applied to send adjusting regularly.
(8) can adopt the base station in mobile communication system, this mobile communication system possesses: the mobile radio station that carries out transmission processing; With the base station that receives the signal sending from this mobile radio station, wherein, this base station possesses control part, in the situation that sending regularly adjusting information according to the 1st, above-mentioned mobile radio station carries out the connection of above-mentioned base station to process, in the process that this control part is processed in above-mentioned connection, to above-mentioned mobile radio station, in the signal of identifying information that send, that comprise this mobile radio station, comprise the 2nd and send regularly adjusting information.
(9) can adopt the mobile radio station in mobile communication system, this mobile communication system possesses: mobile radio station; With the base station that receives the signal sending from this mobile radio station, wherein, this mobile radio station possesses: transmission processing portion, and it carries out the transmission processing to above-mentioned base station according to sending regularly adjusting information; And control part, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, when receiving the 2nd, send while regularly regulating information, this control part is not applied the 2nd transmission timing adjusting information and is continued to apply regularly adjusting information of above-mentioned the 1st transmission, and extends the valid expiration date that the 1st transmission timing regulates information.
(10) can adopt the mobile radio station in mobile communication system, this mobile communication system possesses: mobile radio station; With the base station that receives the signal sending from this mobile radio station, wherein, this mobile radio station possesses: transmission processing portion, and it carries out the transmission processing to above-mentioned base station according to sending regularly adjusting information; And control part, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, while arriving before the 1st sends the transmission processing of the signal that regularly regulates the identifying information that valid expiration date of information comprising this mobile radio station, this control part sends according to the above-mentioned the 1st the transmission processing that regularly regulates this signal of information and executing.
(11) can adopt the mobile radio station in mobile communication system, this mobile communication system possesses: mobile radio station; With the base station that receives the signal sending from this mobile radio station, wherein, this mobile radio station possesses: transmission processing portion, and it carries out the transmission processing to above-mentioned base station according to sending regularly adjusting information; And control part, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, while arriving before the 1st sends the transmission processing of the signal that regularly regulates the identifying information that valid expiration date of information comprising this mobile radio station, this control part is ended above-mentioned connection and is processed.
(12) can adopt the base station in mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information; And base station, it receives the signal sending from this mobile radio station, and wherein, this base station possesses: Return Reception Dept., it receives the signal sending from this mobile radio station; And control part, in the situation that sending regularly adjusting information according to the 1st, above-mentioned mobile radio station carries out the connection of above-mentioned base station to process, at this, connect in the process of processing, when receiving the signal of the identifying information that comprises this mobile radio station by above-mentioned Return Reception Dept., this control part, with the opportunity that is received as of this signal, sends regularly adjusting information by the 2nd and is sent to above-mentioned mobile radio station.
(13) can adopt mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information, and base station, it receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, when receiving the 2nd, send while regularly regulating information, above-mentioned mobile radio station sends for the above-mentioned the 1st the former transmission processing of valid expiration date that regularly regulates information, by the above-mentioned the 1st, send regularly adjusting information and be applied to send adjusting regularly, for the above-mentioned the 1st transmission processing sending after the valid expiration date that regularly regulates information, by the above-mentioned the 2nd, send regularly adjusting information and be applied to send adjusting regularly.
(14) can adopt mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information; And base station, it receives the signal sending from this mobile radio station, wherein, in the situation that sending regularly adjusting information according to the 1st, above-mentioned mobile radio station carries out the connection of above-mentioned base station to process, in above-mentioned connection processing procedure, from above-mentioned base station, be sent to the signal of identifying information this mobile radio station, that comprise this mobile radio station, comprise the 2nd and send regularly adjusting information.
(15) can adopt mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information; And base station, it receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, when receiving the 2nd, send while regularly regulating information, above-mentioned mobile radio station is not applied the 2nd and is sent regularly adjusting information and continue to apply the above-mentioned the 1st and send regularly adjusting information, and extends the 1st and send the valid expiration date that regularly regulates information.
(16) can adopt mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information; And base station, it receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, while arriving before the 1st sends the transmission processing of the signal that regularly regulates the identifying information that valid expiration date of information comprising this mobile radio station, above-mentioned mobile radio station sends according to the above-mentioned the 1st the transmission processing that regularly regulates this signal of information and executing.
(17) can adopt mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information; And base station, it receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, while arriving before the 1st sends the transmission processing of the signal that regularly regulates the identifying information that valid expiration date of information comprising this mobile radio station, above-mentioned mobile radio station is ended above-mentioned connection and is processed.
(18) can adopt mobile communication system, this mobile communication system possesses: mobile radio station, and it carries out transmission processing according to sending regularly adjusting information; And base station, it receives the signal sending from this mobile radio station, wherein, in the situation that send regularly adjusting information according to the 1st, carry out the connection of above-mentioned base station to process, at this, connect in the process of processing, above-mentioned mobile radio station sends the signal of the identifying information that comprises this mobile radio station, when above-mentioned base station receives this signal, above-mentioned base station, with the opportunity that is received as of this signal, sends regularly adjusting information by the 2nd and is sent to above-mentioned mobile radio station.
As effect of the present invention, can solve the undesirable condition of generation in transmission from base station to mobile radio station adjusting regularly etc.Can also be reduced in mobile radio station is connected with base station and can starts the communication delay time before.
Accompanying drawing explanation
Fig. 1 is the block diagram of an example that wireless (movement) communication system of the 1st execution mode is shown.
Fig. 2 is the sequential chart that an example of the random access procedure based on competition is shown.
Fig. 3 is the flow chart of the UE action case in the random access procedure illustrating based on competition.
Fig. 4 is the flow chart of the action case of the eNB in the random access procedure illustrating based on competition.
Fig. 5 is the sequential chart of an example that the UL Control on Communication (method 1-1) of the 1st execution mode is shown.
Fig. 6 is another routine sequential chart that the UL Control on Communication (method 1-1) of the 1st execution mode is shown.
Fig. 7 is another routine sequential chart that the UL Control on Communication (method 1-1) of the 1st execution mode is shown.
Fig. 8 is the flow chart of an example of UL Control on Communication (method 1-1) that the UE of the 1st execution mode is shown.
Fig. 9 is the sequential chart of an example that the UL Control on Communication (method 1-2) of the 1st execution mode is shown.
Figure 10 is another routine sequential chart that the UL Control on Communication (method 1-2) of the 1st execution mode is shown.
Figure 11 is another routine sequential chart that the UL Control on Communication (method 1-2) of the 1st execution mode is shown.
Figure 12 is the flow chart of an example of UL Control on Communication (method 1-2) that the UE of the 1st execution mode is shown.
Figure 13 is the sequential chart of an example that the UL Control on Communication (method 1-3) of the 1st execution mode is shown.
Figure 14 is another routine sequential chart that the UL Control on Communication (method 1-3) of the 1st execution mode is shown.
Figure 15 is another routine sequential chart that the UL Control on Communication (method 1-3) of the 1st execution mode is shown.
Figure 16 is the flow chart of an example of UL Control on Communication (method 1-3) that the UE of the 1st execution mode is shown.
Figure 17 is the sequential chart of an example that the UL Control on Communication (method 1-4) of the 1st execution mode is shown.
Figure 18 is another routine sequential chart that the UL Control on Communication (method 1-4) of the 1st execution mode is shown.
Figure 19 is another routine sequential chart that the UL Control on Communication (method 1-4) of the 1st execution mode is shown.
Figure 20 is the flow chart of an example of UL Control on Communication (method 1-4) that the UE of the 1st execution mode is shown.
Figure 21 is the sequential chart of an example that the UL Control on Communication (method 2-1) of the 2nd execution mode is shown.
Figure 22 is another routine sequential chart that the UL Control on Communication (method 2-1) of the 2nd execution mode is shown.
Figure 23 is another routine sequential chart that the UL Control on Communication (method 2-1) of the 2nd execution mode is shown.
Figure 24 is the flow chart of an example of UL Control on Communication (method 2-1) that the UE of the 2nd execution mode is shown.
Figure 25 is the sequential chart of an example of UL Control on Communication (method 2-2,2-3) that the 2nd execution mode is shown.
Figure 26 is another routine sequential chart of UL Control on Communication (method 2-2,2-3) that the 2nd execution mode is shown.
Figure 27 is another routine sequential chart of UL Control on Communication (method 2-2,2-3) that the 2nd execution mode is shown.
Figure 28 is the flow chart of an example of UL Control on Communication (method 2-2) that the UE of the 2nd execution mode is shown.
Figure 29 is the flow chart of an example of UL Control on Communication (method 2-3) that the UE of the 2nd execution mode is shown.
Figure 30 is the sequential chart of an example that the UL Control on Communication (method 2-4) of the 2nd execution mode is shown.
Figure 31 is another routine sequential chart that the UL Control on Communication (method 2-4) of the 2nd execution mode is shown.
Figure 32 is another routine sequential chart that the UL Control on Communication (method 2-4) of the 2nd execution mode is shown.
Figure 33 is the flow chart of an example of UL Control on Communication (method 2-4) that the UE of the 2nd execution mode is shown.
Figure 34 is the sequential chart of an example that the UL Control on Communication (method 3-3) of the 3rd execution mode is shown.
Figure 35 is another routine sequential chart that the UL Control on Communication (method 3-3) of the 3rd execution mode is shown.
Figure 36 is the flow chart of an example of UL Control on Communication (method 3-3) that the eNB10 of the 3rd execution mode is shown.
Figure 37 is the flow chart of an example of UL Control on Communication (method 3-3) that the UE of the 3rd execution mode is shown.
Label declaration
10 wireless base stations (eNB)
11 dual-mode antennas
12 receiving and transmitting parts
13 buffer units
The synchronous detection unit of 14UL
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
The synchronous detection unit of 24UL
25 timer management portions
251UL synchrotimer (TA timer)
252 memories
26UL department of resource management
Embodiment
Below, with reference to accompanying drawing, execution mode is described.But below the execution mode of explanation is to be only illustration, does not get rid of the following various distortion of not expressing of application and the meaning of technology.That is, present embodiment can be carried out various distortion (combining each embodiment etc.) and implemented in the scope that does not depart from its purport.
(1) the 1st execution mode
Fig. 1 is the block diagram of an example that wireless (movement) communication system of the 1st execution mode is shown.The illustrated system of this Fig. 1 possesses: as the eNB10 of wireless base station one example with as the UE20 of wireless terminal (mobile radio station) example, this UE20 communicates by letter 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 can have respectively a plurality of eNB10 and UE20 in above-mentioned wireless communication system.In above-mentioned wireless link, contain DL(up link) and UL(down link) wireless channel.In the wireless channel of above-mentioned DL and UL, can comprise respectively the dedicated channel that the common signal channel that shared by a plurality of UE and each UE can exclusive uses.
In addition, if not specified, in Fig. 1, in the structure of illustrative eNB10 and UE20 the 2nd and the 3rd execution mode afterwards, be also general.In addition, also suppose that wireless base station 10 in this example is the eNB that possess in the LTE of part or all function of radio network control apparatus (RNC), but also can be than LTE previous generation (not combining the function of RNC) base station.In addition, can also be the base station of having stipulated other system of random access procedure.
(1.1) explanation of eNB
Exemplarily, eNB10 possesses: dual-mode antenna 11, receiving and transmitting part 12, buffer 13, the synchronous detection unit 14 of UL, timer management Bu15He UL department of resource management 16.
Below dual-mode antenna 11(, be sometimes only expressed as " antenna 11 ") send and can be present in the DL wireless signal that the UE20 in the wireless zone (community or sector) that eNB10 provides receives, on the other hand, receive the UL wireless signal that UE20 sends.
12 pairs of receiving and transmitting parts will send to the transmission data of UE20 to implement (comprise user data, control data etc.) transmission processing of regulation, generate the signal of wireless channel, and export dual-mode antenna 11 to.Exemplarily, above-mentioned transmission processing can comprise: DL sends the coding of data, the modulation of coded data, modulation signal is mapped to predetermined channel frame, is the power amplification etc. of wireless frequency (up-conversion), radio frames by frame signal frequency inverted.Above-mentioned radio frames for example can be applied based on OFDM (Orthogonal Frequency Division Multiplexing, OFDM) or the radio frames of OFDM (Orthogonal Frequency Division Multiple Access, OFDMA).
In addition, the UL wireless signal (radio frames) that 12 pairs of antennas 11 of receiving and transmitting part receive is implemented the reception & disposal of regulation, obtains the UL data (comprise user data, control data etc.) that UE20 sends.Exemplarily, above-mentioned reception & disposal can comprise: receive signal low noise amplification, by frequency translation, be base band frequency (down-conversion), gain-adjusted, demodulation, decoding etc.In addition, receiving and transmitting part 12 can possess respectively sending part and acceptance division in function.
The interim UL of preservation of buffer unit 13 receives data and/or DL sends data.
TA value is for the UL data of UE20 being sent regularly and the UL data receiver of eNB10 control information a kind of of consistent (synchronously) and employing regularly.That is, at the UL to UE20, send when timing regulates and use TA value, make can carry out reception & disposal with suitable timing in receiving and transmitting part 12.Therefore, UE20 regulates UL to send regularly according to the TA value receiving from eNB10, can guarantee that thus UL is synchronous.
UE20 is not limited to rest on same position, thus TA value is and eNB10 and UE20 between the corresponding variable value of distance (position of UE20).Thus, for UE20 guarantees that (maintaining) UL is synchronous, expectational cycle ground upgrades TA value.
As an example that realizes this renewal, eNB10 generates with the corresponding TA value in position of UE20 notice periodically to UE20.DL control signal for this notice is called to TA instruction.ENB10, in order to grasp the position of UE20, can be used the UL control signal receiving from UE20.Control signal for this mensuration is known signal, for example SRS(Sounding Reference Signal: detection reference signal).
In addition, timer management portion 15 has UL synchrotimer (TA timer) 151.This TA timer 151 be take and UE20 is sent to (notice) TA value started as opportunity.Timer management portion 15 monitors its timer value.UE20, along with it moves and changes position, is not effective all the time so notify the TA value of UE20.Therefore, adopt TA timer 151(regularly to aim at timer) monitor that notice is to the valid expiration date of the TA value of UE20.Whenever generating, while notifying new TA value, restart TA timer 151.
The synchronous detection unit of UL (control part) 14 monitors TA timer 151(timer values), for when receiving UL data or while sending DL data, by UL confirmation of receipt, respond, and determine whether that to guarantee (to have maintained) UL synchronous.For example, when the full journey (overtime) of TA timer 151, even if guaranteed that (maintaining) actual (lower layer) UL is synchronous, be also judged to be that to have lost UL synchronous.
UL department of resource management 16 management is being carried out communicate by letter UL resource (for example, channel frequency and time (transmitting-receiving regularly) etc.) of using in (communication while also comprising random access) and distribute and discharge of UL with UE20.When form to above-mentioned radio frames application OFDMA mode, the management of above-mentioned Radio Resource is equivalent to management by the configuration (mapping) in 2 dimension transmitting-receiving regions (being called burst (burst)) of sub-channel frequencies and symbol time regulation.
Exemplarily, above-mentioned UL resource can comprise UL control channel for UE20 special use (PUCCH:Physical Uplink Control Channel: Physical Uplink Control Channel) and for eNB10 estimate channel and measure the resource of the SRS of above-mentioned UE20 position etc.Channel quality information), SRI(Scheduling ReqUEst Indicator in addition, PUCCH resource can be included in UE20 and send CQI(Channel Quality Information to eNB10:: the resource of using in the time of dispatch request index).
CQI resource is used for to the accepting state (quality) of eNB10 report UE20.ENB10 can suitably control according to the CQI receiving from UE20 the transmission (sending data volume, modulation system, encoding rate etc.) of DL.
SRI resource is used in the situation that having guaranteed that UL is synchronous, and UE20 informs and in UE20, produced UL data to eNB10.The UE20 of unallocated SRI resource can carry out random access and inform and produced UL data to eNB10.In addition,, for the UE20 that does not guarantee that UL is synchronous, in the situation that having produced UL data, can carry out random access and inform and produced UL data to eNB10.
UL department of resource management 16, in the situation that TA timer 151 is overtime, allows to discharge and has distributed to the PUCCH resource (CQI resource, SRI resource) of UE20 and the distribution of SRS resource.
(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, the synchronous detection unit 24 of UL, timer management Bu25He UL department of resource management 26.
Below dual-mode antenna 21(, referred to as " antenna 21 ") send the UL wireless signal of going to eNB10 in the wireless zone (community or sector) that provides at eNB10, on the other hand, receive the DL wireless signal that eNB10 sends.
The transmission processing that 22 pairs of receiving and transmitting parts are sent to UL transmission data (comprise user data, control data etc.) the enforcement regulation of eNB10 generates the signal of wireless channel, and outputs to dual-mode antenna 21.Exemplarily, above-mentioned transmission processing can comprise: UL sends the coding of data, the modulation of coded data, by modulation signal be mapped to predetermined channel frame, by frame signal frequency inverted to wireless frequency (up-conversion) and the power etc. that amplifies radio frames.
In addition, the DL wireless signal (radio frames) that 22 pairs of receiving and transmitting parts are received by antenna 21 is implemented the reception & disposal of regulation, obtains the DL data (comprise user data, control data etc.) that eNB10 sends.Exemplarily, above-mentioned reception & disposal can comprise: receive the low noise amplification of signal, by frequency inverted to base band frequency (down-conversion), gain-adjusted, demodulation, decoding etc.In addition, receiving and transmitting part 22 can possess respectively sending part and acceptance division in function.
The interim UL of preservation of buffer unit 23 sends data and/or DL receives data.
The synchronous detection unit of UL (control part) 24 monitors TA timer 251(timer values), carrying out UL data while sending, determine whether that to guarantee (to have maintained) UL synchronous.In the situation that TA timer 251 is overtime, be judged to be that to have lost UL synchronous.Therefore, ignoring in the situation that the TA value receiving from eNB10 in random access procedure, TA timer 251 is overtime and be judged to be that in the way of random access procedure, to have lost UL synchronous sometimes.
UL resource and release thereof that 26 management of UL department of resource management distribute from eNB10.The synchronous detection unit 24 of, UL overtime at TA timer 251 is judged to be and has lost the UL resource that the synchronous situation Xia， UL department of resource management 26 of UL allows release to distribute.
(1.3) random access procedure based on competition
Below, adopt Fig. 2～Fig. 4 to illustrate as being substantially connected the random access procedure based on competition of processing an example between above-mentioned eNB10 and UE20.Fig. 2 is the sequential chart that random access procedure one example based on competition is shown.Fig. 3 is the flow chart that random access procedure one example based on competition in UE20 is shown, and Fig. 4 is the flow chart that random access procedure one example based on competition in eNB10 is shown.
When while sending (UE20 first) and the DL data that are sent to UE20 arrive eNB10 and receive the call-in reporting of DL data from eNB10 while having produced UL data in UE20 etc., carry out the random access procedure based on competition.The former situation of flow chart illustration of Fig. 3, flow chart illustration the latter's of Fig. 4 situation.
As illustrated in Figure 3, when producing UL data in UE20, UE20 is determined whether and has been guaranteed UL synchronous (process 1101～process 1103) by the synchronous detection unit 24 of UL.
As result of determination, when not guaranteeing that UL is synchronous (being "No" in processing 1103), UE20 selects 1 by UL department of resource management 26 from pre-prepd a plurality of signatures (lead code).In order to reduce the possibility of selecting same signature between UE as far as possible, can adopt according to produced random number and the various systems of selection such as select.Selected signature packets is contained in message #1(RA lead code) in, by RACH, from receiving and transmitting part 22, send to the processing 1011 of eNB10(Fig. 2 and the processing 1104 of Fig. 3).
When eNB10 receives above-mentioned message # 1, by the response message #2(RA corresponding with it response) be sent to the processing 1012 of UE20(Fig. 2).In this RA response # 2, can comprise: eNB10 can receive one or more signatures of (judgement) identifier, sign with this transmission license of UL common signal channel corresponding, the identifier of distribution etc. temporarily in order to identify later RA communication object (UE20).This identifier is called as temporary-connection radio network temporary identifier(T-CRNTI) (interim connecting wireless network temporary indentification).
When UE20 receives RA response # 2 from eNB10 (processing 1105 of Fig. 3), be confirmed whether to comprise the identifier of the signature sending by above-mentioned message # 1 in this reception information.
In the situation that comprising identifier, UE20, according to this RA response # 2 transmission license that comprise, corresponding with the signature self sending, carries out transmission (the Scheduled Transmission: scheduled transmission) (processing 1013 of Fig. 2 and the processing 1106 of Fig. 3) of message #3.This message # 3 is the signal comprising the dispatch request of eNB10, can comprise the system architecture evolution(SAE as identiflication number one example of UE20, system architecture evolution)-temporary mobile subscriber identity(S-TMSI, temporary mobile subscriber identity) etc.
Here, UE20 selects signature by above-mentioned message # 1, but may produce a plurality of UE20, adopts same signature to eNB10, to send the situation of message # 1 simultaneously.
In this case, though eNB10 can not differentiate these UE20, can be by receiving the identifying information (numbering) that sent by above-mentioned message # 3 by UE20 (S-TMSI), be identified in to have produced to sign between which UE20 and compete.Therefore, eNB10 can select any one UE20 to solve competition.The standard of this selection can adopt the received electric field strength of message #1.For example, eNB10 selects the received electric field strength of message # 1 than other large UE20.
ENB10 sends message #4(Contention Resolution to solve the UE20 selecting by competition: competition solves) (processing 1014 of Fig. 2).The information that can comprise S-TMSI of sending by message # 3 etc. in this message # 4.
When UE20 receives above-mentioned message # 4 from eNB10 (processing 1107 of Fig. 3), check and whether have competition (checking the identifying information that whether comprises self) (processing 1108 of Fig. 3) with other UE20, if do not competed, finish UL and connect processing (the "No" path of the processing 1108 of Fig. 3).After, UE20 is used the temporary indentification (T-CRNTI) of above-mentioned interim distribution as definite identifier (C(cell)-RNTI) communicate with eNB10.
On the other hand, as the result that receives message # 4, and other UE20 between while there is competition (identifying information that does not comprise self) (in processing 1108 for "Yes" in the situation that), the time (processing 1111) that this UE20 standby rollback (backoff) is specified.So-called rollback is exactly the information of specifying the timing (stand-by time) of the random access procedure of UE20 retry based on competition.
The parameter of rollback is notified by message # 2, can be by changing its rollback for each UE20, and the probability of again competing while being reduced in retry thus.Specifically, by message # 2, notify the maximum rollback time, UE20 calculates the rollback time in this time range.In this calculating, can adopt such as using the various computational methods such as random number.
Then, UE20 inspection is by the retry of next random access procedure, and whether number of retries surpasses maximum times (processing 1112).If do not surpass (being "No") in processing 1112, UE20 carries out the later processing of above-mentioned processing 1103, retry random access procedure (carrying out the transmission of message # 1).In the situation that surpassing (in the situation that of being "Yes" in processing 1112), UE20 notifies this situation (processing 1113) to upper layer.Above-mentioned upper layer is for example that the radio resource that belongs to layer 3 is controlled (radio resource control, RRC) layer.
The upper layer that receives above-mentioned notice starts the watchdog timer that the continuation of random access (retry) is monitored.When this watchdog timer is overtime, the upper layer of UE20 is carried out the eNB10(community to UL connection request (transmission of message #1) destination) reelect controls (community selects control or community to reselect control).
In addition,, in above-mentioned processing 1103, in the situation that having guaranteed that UL is synchronous (in the situation that of being "Yes" in processing 1103), UE20 checks whether PUCCH resource (SRI resource) is assigned (processing 1109).If be assigned (being "Yes") in processing 1109, UE20 adopts SRI resource by SRI(UL data sending request) be sent to eNB10(and process 1110).
If do not distribute SRI resource (being "No") in processing 1109, UE20 sends message # 1 to eNB10, and carries out random access procedure.That is,, even set up synchronous in the situation that processing to be judged to be in 1103, when there is no SR PUCCH resource, also there is the situation of carrying out random access procedure.
Random access procedure when on the other hand, Fig. 4 arrives eNB10 and carries out DL data call-in reporting from eNB10 to UE20 exemplified with the DL data that send to UE20, eNB10.
That is,, when sending to the DL data of UE20 to arrive eNB10 (processing 1201), eNB10 is determined whether and has been guaranteed UL synchronous (process 1202 and process 1203) by the synchronous detection unit 14 of UL.If do not guarantee UL synchronous (being "No") in processing 1203, the situation (processing 1204) that eNB10 arrives to UE20 notice DL data.
In this notice (call-in reporting), can also comprise dedicated preamble, but in UE20, not comprise dedicated signatures (dedicated preamble) in the present embodiment.Therefore the UE20 that, receives above-mentioned call-in reporting carries out the above-mentioned random access procedure based on competition.Now, in the situation that the UL resource of distributing before having discharges this UL resource, and after accessing successfully at random, from eNB10, distribute new UL resource.
When eNB10 receives message #1(RA lead code from the UE20 of random access procedure having started based on competition) time (processing 1205), respond (message #2) and is returned to UE20(processing 1206).
Then, when receiving message # 3 from UE20, (process 1207), eNB10 checks whether to have message collision (processing 1208), if not have, message # 4 is sent to UE20(from processing 1208 "No" path to processing 1209).If have message collision ("Yes" in processing 1208), the transmission that eNB10 does not carry out message # 4 just finishes random access procedure.
More than the basic process of the random access based on competition.Here, suppose the situation of the value (the TA timer 151 of eNB10 is asynchronous with the timer value of the TA timer 251 of UE20) of the TA timer 251 of eNB10 in can not correct management UE20.
Exemplarily, consider that the TA timer 251 of UE20 continues timing, but because eNB10 cannot grasp this continuation timing, so eNB10 thinks the overtime situation of TA timer 251 of UE20 mistakenly.
Fig. 5～Fig. 7 (Fig. 9～Figure 11, Figure 13～Figure 15, Figure 17～Figure 19) illustrates one example.For example, when eNB10 carries out calling and setting and UL resource (, SRI resource # 1, CQI resource # 1, SRS resource #1) minute timing (processing 1008) to UE20, periodically to UE20, send TA instruction (processing 1009).Receive this TA instruction (TA value=TA# 1; The 1st timing adjusting information) UE20 starts TA timer 251.
UE20 carries out the transmission of UL according to the TA# 1 by above-mentioned TA instruction notification, and after this transmission finishes, when sending to the DL data of UE20 to arrive eNB10, eNB10 carries out call-in reporting (transmission of message #0) (processing 1010) to UE20.The UE20 that receives this call-in reporting # 0 is synchronous and resource in order to ensure UL, starts the random access procedure based on competition.
That is, UE20 is sent to eNB10(by the message # 1 that comprises selected signature (random lead code) and processes 1011), the eNB10 that receives this message # 1 responds #2 by RA and is back to UE20(processing 1012).Now, eNB10 is by new TA value (TA# 2; The 2nd timing adjusting information) be included in RA response # 2.
The UE20 that receives this RA response # 2 can apply new TA# 2 and restart TA timer 251, but also can allow as described above to ignore this TA#2.In the situation that ignoring, sometimes after message # 3 send between (processing 1013) and message # 4 reception (processing 1014), TA timer 251 is overtime.
In this case, in UE20, be judged to be that to have lost UL synchronous and after discharging whole UL resources of guaranteeing so far, can not send the UL data beyond RACH.
Therefore, in this example, when in the situation that in the random access procedure based on competition TA timer 251 overtime, guarantee as follows the synchronous and UL resource of UL.In addition, afterwards in the accompanying drawing that uses of explanation (also comprising other execution mode described later), only otherwise special instruction, the processing that has marked same processing numbering represents identical or same processing.
(1.4) when receipt message # 4, there is no the situation of the competition of generation and other UE20
Show in the situation (accessing at random successful situation) of competition that there is no generation and other UE20, can guarantee to having carried out the UE20 of random access the situation of special-purpose UL resource.But, because TA timer 251 is in timeout mode, therefore can not be called and can guarantees that UL is synchronous.
Therefore, UE20 adopts any one in 4 method 1-1～1-4 shown below to guarantee that UL is synchronous.
(1.4.1) method 1-1(Fig. 5～Fig. 8)
As illustrated in Fig. 8, UE20 is pre-stored in the memory 252 of timer management portion 25 (processing 1105a) by the TA value (TA#2) receiving by above-mentioned message # 2 in the random access procedure based on competition.
In addition, UE20(UL department of resource management 26) lost UL synchronous in the situation that identifying, discharged the transmission processing that receives TA# 1 before the random access based on starting based on competition and use (before random access starts from eNB10 distribution) UL resource.
For example as shown in Figure 5, this release can be regularly the timing (identifying the synchronous management of UL and the inconsistent timing of eNB10) (processing 2001) that receives above-mentioned call-in reporting message # 0, or as shown in Figure 6, this release can be regularly also the overtime timing of TA timer 251 (processing 2002).But, as shown in Figure 7, even if TA timer 251 is overtime, also can not discharge this UL resource and the state that keeps guaranteeing (continuing to use) (processing 2003).
Then, UE20 continues the random access procedure based on competition, when reception when success of message # 4, the TA value (TA#2) that UE20 stores memory 252 is applied to UL and sends, and restarts TA timer 251(from processing 1108 "No" path to processing 1114).
That is, after TA timer 251 is overtime, in the process of random access, UE20 take receive the message #2(response signal comprising as the T-CRNTI of self identifying information one example) be opportunity, allow to apply TA#2.In addition, so-called " application TA value " is exactly according to the transmission shown in TA value, regularly to control the transmission (execution of random access) of UL.For example, a function that can be used as the synchronous detection unit 24 of UL realizes this control (hereinafter too).
Now, the value of TA timer 251 can be setting, also can regularly set according to the reception of message #2.For example, can make synchronously success when the reception of message # 2 of UL, from setting, deduct from the required time of the reception that receives message # 4 of message # 2, set the value of TA timer 251.This expression makes timer value (regularly regulating the valid expiration date of information) in advance from the notice that receives TA# 2 by message # 2 till the time of notified random access result.
So in this example, in the situation that UE20 carries out the random access to eNB10 according to TA# 1, in the process of this random access, when receiving TA# 2, for the transmission processing before TA timer 251 overtime (valid expiration date of TA#1), TA# 1 is applied to send adjusting regularly.The transmission processing of (after the valid expiration date of TA#1) after overtime for TA timer 251, is applied to send adjusting regularly by TA# 2.
Thus, even if do not carry out the immediate updating of the transmission timing based on TA# 2, also can be after surpassing the valid expiration date of TA#1 (after overtime), application TA# 2 sends control.
Then, UE20 returns to eNB10(by the confirmation response message for message #4 (ACK or NACK) and processes 1015).If eNB10 receives ACK as the confirmation response message for message # 4, new UL resource (for example, SRI resource # 2, CQI resource # 2, SRS resource #2) is distributed to UE20(and processed 1016).
In addition, as illustrated in Fig. 7, even in the situation that the overtime UL resource that also do not discharge of the TA timer 251 of UE20, UE20 can continue to use the UL resource of guaranteeing, also can distribute the new UL resource (processing 1017) that replaces this UL resource to eNB10 request.
The UL resource that 26Zhong administrative institute of UE20 UL department of resource management distributes, after, adopt this UL resource to carry out the UL of eNB10 to send.
(1.4.2) method 1-2(Fig. 9～Figure 12)
As the 2nd method, as illustrated in Fig. 9～Figure 12, UE20 is pre-stored in memory 252 (processing 1105a) by the TA value (TA#2) receiving by message #2.Then, suppose processing 1013 from sending message #3() to receipt message #4(processing 1014) during TA timer 251 overtime.
In the case, the do not wait for the arrival of news reception of #4 of UE20, the TA value (TA#2) that memory 252 is stored is applied to UL and sends, and restarts TA timer 251(from the "Yes" path of the processing 1161 of Figure 12 to processing 1162).The opportunity of restarting can with the overtime while of TA timer 251.That is, in TA timer 251 moment of overtime (valid expiration date of TA#1), the TA# 2 that allows application to receive by message # 2.
Thus, even if do not carry out transmission based on TA# 2 immediate updating regularly, also can be when surpassing the valid expiration date of TA# 1 when overtime (), application TA# 2 sends control.
(1.4.3) method 1-3(Figure 13～Figure 16)
As the 3rd method, as illustrated in Figure 13～Figure 16, suppose to comprise new TA value (TA#3) (the processing 1107a of processing 1014a, Figure 16 of Figure 13～Figure 15) when eNB10 sends message # 4.
; at UE20, according to TA#1(the 1st, send regularly adjusting information) while carrying out the random access to eNB10; in process of this random access, eNB10 comprises the signal as the S-TMSI of identifying information one example of UE20 at the message #4(that is sent to UE20) in comprise TA#3(the 2nd and send regularly adjusting information).
When UE20 receives this message # 4 from eNB10, the TA value (TA#3) that this message # 4 is comprised is applied to UL and sends, and starts the processing 1114 of TA timer 251(Figure 16).
; conventionally in the message # 4 that comprises mobile radio station identifying information, do not comprise TA value; but in the present embodiment; by containing TA value at message # 4; ignored thus the TA value that the UE20 of the TA# 2 receiving by message # 2 can application message # 4; as transmission afterwards, regularly regulate information, and start TA timer 251.
In addition in this example, UE20 also can be stored in the above-mentioned TA# 2 ignoring in memory 252.
(1.4.4) method 1-4(Figure 17～Figure 20)
As the 4th method, as illustrated in Figure 17～Figure 20, UE20 with whether store the TA value (TA#2) receiving by message # 2 from eNB10 and have nothing to do, all the opportunity that is received as with message # 2 restarts TA timer 251.
In this case, the random access (UL transmission) (the processing 1105b of Figure 20) of UE20 after continuing the TA value (TA#1) starting to receive from eNB10 before random access procedure to be applied to.This is equivalent to control TA timer 251 so that in the process of random access, extended before random access starts from eNB10 by TA command reception to UL send valid expiration date regularly.
That is, UE20 is in the situation that carry out the random access to eNB10 according to TA# 1, in process of this random access, when receiving TA# 2, do not apply TA# 2 and continues to apply TA# 1, and extend the valid expiration date of TA# 1.
In addition, during extending, (for the value of the TA timer 251 of TA#2) can be setting, also can regularly set according to the reception of message #2.For example, can synchronously deduct from receiving message # 2 to the overtime required time of TA# 1 from UL, set the value of TA timer 251.
According to this example, after TA# 2 receives, also can continue to extend TA# 1 and utilize, and can be applied to send adjusting regularly.
(1.5) situation of the competition of generation and other UE20 when receiving message # 4
In the situation that produce the competition with other UE20 while receiving message # 4, the UL resource used with other UE20 repeats, and means and can not guarantee special-purpose UL resource to the machine 20.
Therefore, the UE20 not UL data except RACH sends, so carry out the retry of the random access based on competition, attempts guaranteeing UL synchronous (the "Yes" path of the processing 1108 of Fig. 3).
(2) the 2nd execution modes
In above-mentioned the 1st execution mode, suppose from UE20, sending message # 3 to during eNB10 receipt message # 4, the overtime situation of TA timer 251 of UE20.In the present embodiment, suppose from UE20 from eNB10, receiving message # 2 to during eNB10 transmission message # 3, the overtime situation of TA timer 251 of UE20.
For example, as illustrated in Figure 21～Figure 23, Figure 25～Figure 27 and Figure 30～Figure 32, while UE20 being carried out to call-in reporting (processing 1010) when sending to the DL data of UE20 to arrive eNB10, carry out the random access (transmission of message #1: process 1011) based on competition.In the case, when the UE20 that receives TA value (TA#2) by message # 2 from eNB10 ignores this TA# 2, sometimes comprising the signal as the S-TMSI of identifying information one example of UE20 sending message #3() TA timer 251 is overtime before.
In this case, the synchronous detection unit 24 of UE20(UL) be judged to be that to have lost UL synchronous, any one in 2-1～2-4 continues random access by the following method.
(2.1) method 2-1(Figure 21～Figure 24)
In UE20, when being judged to be, lose UL when synchronous, do not carried out the transmission of message # 3 originally.But TA timer 251 is often set to the failure safe (fail safe) of the synchronous scope of the UL that do not lose in physical layer.Therefore,, even if TA timer 251 is overtime, sometimes can also guarantee that actual (lower layer) UL is synchronous.
Therefore, in this example, even if UE20 receives message #2(from eNB10 and processes 1012) TA timer 251 is overtime afterwards, this UE20 still attempts that eNB10 is sent to message #3(to be forced to send) (the processing 1105c of processing 1013a, Figure 24 of Figure 21～Figure 23 and processing 1106a).That is, although overtime, can apply TA# 1 and send message #3.In addition, TA# 2 can be pre-stored in memory 252.
; in the situation that UE20 carries out the random access to eNB10 according to TA# 1; in the process of this random access; while arriving before the valid expiration date of TA# 1 is being carried out the transmission processing of message # 3; even if received TA# 2 before the valid expiration date of TA# 1 arrives, also can carry out the transmission processing that sends message # 3 to eNB10 according to TA# 1.
Thus, if eNB10 can receive message # 3, UE20 can be from from the beginning of the random access of revising based on competition, and continues later random access procedure.That is,, if as for the response signal of message # 3, UE20 successfully receives the message # 4 that comprises self identifying information, TA# 2 can be applied to the after this transmission of transmission processing and regularly regulate, and starts TA timer 251.Therefore, can reduce UL data and send delaying before starting.
But, because eNB10 can identify the situation that what is called that UE20 force to send message # 3 violates the rules, therefore can also connection refused message be sent to UE20 by message #4.That is, eNB10, surpassing while receiving the message # 3 sending according to TA# 1 from UE20 after the valid expiration date of TA# 1, can be sent to UE20 by refuse information.
Now, UE20 carries out the retry that random access procedure was selected/reselect or carried out in community.Or eNB10 can also not send message # 4 wittingly.In this case, the repeating transmission of UE20 continuation message # 3, until arrive the sending times (common maximum number of retransmissions or the maximum number of retransmissions of only applying in this case) allowing.
(2.2) method 2-2(Figure 25～Figure 28)
As illustrated in Figure 25～Figure 27, at UE20, receive message #2(TA#2) (processing 1012) afterwards, to eNB10, send message #3(and process 1013) TA timer 251 completely during journey before, cancel the transmission of message # 3, end (cancellation) executory random access procedure (processing 1018) based on competition.
; in the situation that UE20 carries out the random access to eNB10 according to TA# 1; in the process of this random access; before the transmission processing comprising as the signal of the S-TMSI of UE20 identifying information one example; the valid expiration date of TA# 1 is when arrive; even if received TA# 2 before the valid expiration date of TA# 1 arrives, also end random access.
In this case, as illustrated in Figure 28, UE20 application rollback is carried out the retry (processing the "Yes" path of 1105d) of the random access based on competition.That is,, according to the timing of the rollback time receiving from eNB10 in the random access procedure based on ended (stand-by time information), carry out the retry of random access.As illustrated in Figure 25～Figure 27, UE20 carries out transmission (processing 1011), the message #2(TA# 3 of message #1) reception (processing 1012) etc.
Here, receiving message #2(TA#2) the moment, TA timer 251 overtime (being not activated).Therefore, UE20 can be applied to the new TA# 3 receiving by message # 2 in the random access procedure of retry the transmission that after this UL sends and regularly regulate, and starts TA timer 251.While recognizing random access failure (producing conflict) when receipt message # 4, TA timer 251 can force to finish (processing 2004 of Figure 25～Figure 27).
As in this example, in the overtime moment of TA timer 251, end random access procedure and carry out the retry of random access, thus with (for example will remain process, the reception of the transmission of message # 3 and message #4) be implemented into finally and compare, can be reduced in UL data and send delaying before starting.
(2.3) method 2-3(Figure 25～Figure 27, Figure 29)
In addition, the random access of retry based on competition in the situation that TA timer 251 is overtime as mentioned above, as illustrated in Figure 29, UE20 can not apply rollback and carry out above-mentioned retry (processing the "Yes" path of 1105d).
That is, UE20 can not be applied in the rollback time receiving from eNB10 in the random access procedure of termination, and carries out the retry of random access.Because do not apply rollback, so compare with the situation of application rollback, can be reduced in UL data and send delaying before starting.
(2.4) method 2-4(Figure 30～Figure 33)
In addition, as illustrated in Figure 30～Figure 32, in the situation that TA timer 251 is overtime, UE20 can regardless of whether rollback all for example, to upper layer (, rrc layer), notify (process 1021, from the "Yes" path of the processing 1105d of Figure 33 to processing 1113).
Thus, the upper layer of UE20 starts the watchdog timer of random access, and monitors the continuation (retry) of random access procedure.That is, UE20 carries out the supervision of random access according to overtime (valid expiration date of TA# 1 arrives) of TA timer 251.In the continuation of random access, when watchdog timer is overtime, the upper layer of UE20 carries out community selection or community reselects processing (processing 1022 of Figure 30～Figure 32).
Therefore, UE20 can start the random access with other community (eNB10) in early days, can be reduced in UL data and send delaying before starting.In addition, can be applicable to said method 2-1～2-3 with the random access supervision of the overtime corresponding upper layer of TA timer 251.
(3) the 3rd execution modes
Then, in the present embodiment, suppose that eNB10 can correctly manage the situation of the timer value of the TA timer 251 in UE20 (the synchronous situation of two TA timers 151,251 of eNB10 and UE20).In this case, eNB10 can identify the situation that the timing of the TA timer 251 of UE20 is continuing, so the believable TA value receiving from eNB10 of UE20.In addition, different from the 1st execution mode and the 2nd execution mode, can expect to send TA value from eNB10.
And, at UE20, be through with after the UL data of the TA value based on arriving by TA command reception send, when sending to the DL data of UE20 to arrive eNB10, eNB10 carries out call-in reporting (transmission of message #0) to this UE20.
Thus, the UE20 that receives this call-in reporting starts the random access procedure based on competition.Then, when processing 1012 from receiving message #2() to sending message #3(processing 1013) during, when the TA timer 251 of UE20 is overtime, UE20 by the following method any one in 3-1～3-3 guarantees that UL is synchronous.
(3.1) method 3-1
With the method 1-2(Fig. 9～Figure 12 describing in the 1st execution mode) same, UE20 is pre-stored in memory 252 by the TA value receiving by message # 2 from eNB10 in random access procedure.And, when TA timer 251 is overtime before message # 3 is sent to eNB10, pre-stored TA value in memory 252 is applied to UL and sends, start TA timer 251.
(3.2) method 3-2
Any one in method 2-1～2-4 that UE20 execution the 2nd execution mode is described.
(3.3) method 3-3(Figure 34～Figure 37)
As illustrated in Figure 34 and Figure 35, in the situation that UE20 carries out the random access to eNB10 according to TA# 1, in the process of this random access, send and comprise the signal (message #3) (processing 1013) as the S-TMSI of UE20 identifying information one example.
Before the TA of UE20 timer 251 is overtime, when eNB10 receives this message # 3 from UE20 in random access procedure (processing 1013), using the reception of this message # 3 as opportunity, to UE20, send and comprise new TA value (TA# 3; The 2nd timing adjusting information) TA instruction (processing 1009a, the processing 1208a of Figure 36).
On the other hand, even if UE20 also monitors the reception of TA instruction in the execution of random access.For example, eNB10 is being sent to message #3(processing 1013) afterwards, monitor the reception from the TA instruction of eNB10.In this monitors, when (process 1009a when eNB10 receives TA instruction, the processing 1161 of Figure 37), UE20(timer management portion 25) the TA value (TA#3) of received TA instruction is applied to UL transmission, and start the processing 1162 of TA timer 251(Figure 37).
In addition, the management of the UL resource in UE20 can be identical with the 1st or the 2nd execution mode.For example, can, in the moment that receives the call-in reporting (message #0) of DL data from eNB10, discharge the UL resource guaranteed so far, or also can, in the overtime moment of TA timer 251, discharge this UL resource.In addition, even if TA timer 251 overtime before receiving TA#3 (TA# 1 valid expiration date arrive) also can not discharge the UL resource guaranteed so far and maintains (continuing to use) (processing 2005 of Figure 35).
In addition, in the situation that TA timer expired during from transmission message # 3 to receipt message # 4, UE20 can apply the mode (any one of method 1-1～method 1-4) identical with the 1st execution mode.
Claims (4)
1. a mobile communication system, this mobile communication system possesses: have the mobile radio station that sends regularly adjusting information and carry out transmission processing; And the base station that receives the signal sending from this mobile radio station, it is characterized in that,
Above-mentioned base station has the control part of the transmission timing that regulates above-mentioned mobile radio station;
Above-mentioned mobile radio station has:
Transmission processing portion, it has the 1st transmission timing adjusting information and carries out the Connection Step to above-mentioned base station,
Control part, it makes in the process of this Connection Step, when for control the 1st send the transmission of the signal that regularly regulates the identifying information that the timer of the Applicative time of information comprising this mobile radio station before and receiving the 2nd while arriving after sending regularly adjusting information, do not carry out above-mentioned transmission.
2. the mobile radio station in mobile communication system, this mobile communication system possesses: have the above-mentioned mobile radio station that sends regularly adjusting information and carry out transmission processing; And receive the signal sending from this mobile radio station and the transmission that regulates above-mentioned mobile radio station base station regularly, it is characterized in that,
Above-mentioned mobile radio station has:
Transmission processing portion, it has the 1st transmission timing adjusting information and carries out the Connection Step for above-mentioned base station,
Control part, it makes in the process of this Connection Step, when for control the 1st send the transmission of the signal that regularly regulates the identifying information that the timer of the Applicative time of information comprising this mobile radio station before and receiving the 2nd while arriving after sending regularly adjusting information, do not carry out above-mentioned transmission.
3. the base station in mobile communication system, this mobile communication system possesses: have the mobile radio station that sends regularly adjusting information and carry out transmission processing; And the above-mentioned base station that receives the signal sending from this mobile radio station, it is characterized in that,
Above-mentioned base station has:
Control part, it regulates the transmission timing of above-mentioned mobile radio station;
Acceptance division, it receives the signal sending from above-mentioned mobile radio station, and wherein, this mobile radio station has:
Transmission processing portion, it has the 1st and sends regularly adjusting information and carry out the Connection Step for above-mentioned base station;
Control part, it makes in the process of this Connection Step, when for control the 1st send the transmission of the signal that regularly regulates the identifying information that the timer of the Applicative time of information comprising this mobile radio station before and receiving the 2nd while arriving after sending regularly adjusting information, do not carry out above-mentioned transmission.
4. the timing adjusting method in mobile communication system, this mobile communication system possesses: have the mobile radio station that sends regularly adjusting information and carry out transmission processing; And the base station that receives the signal sending from this mobile radio station, it is characterized in that,
Above-mentioned base station regulates the transmission timing of above-mentioned mobile radio station;
Above-mentioned mobile radio station has the 1st and sends regularly adjusting information and carry out the Connection Step for above-mentioned base station,
In the process of this Connection Step, when for control the 1st send the transmission of the signal that regularly regulates the identifying information that the timer of the Applicative time of information comprising this mobile radio station before and receiving the 2nd while arriving after sending regularly adjusting information, do not carry out above-mentioned transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499625.2A CN103561459B (en) | 2008-06-02 | 2008-06-02 | Mobile communication system, movement station, base station and timing adjusting method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499625.2A CN103561459B (en) | 2008-06-02 | 2008-06-02 | Mobile communication system, movement station, base station and timing adjusting method |
| CN200880129608.7A CN102047737B (en) | 2008-06-02 | 2008-06-02 | Method for timing adjustment, mobile station, base station, and mobile communication system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880129608.7A Division CN102047737B (en) | 2008-06-02 | 2008-06-02 | Method for timing adjustment, mobile station, base station, and mobile communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103561459A true CN103561459A (en) | 2014-02-05 |
| CN103561459B CN103561459B (en) | 2016-11-16 |
Family
ID=50015565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310499625.2A Active CN103561459B (en) | 2008-06-02 | 2008-06-02 | Mobile communication system, movement station, base station and timing adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103561459B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478366A (en) * | 2000-12-11 | 2004-02-25 | ������������ʽ���� | Radio communication system |
-
2008
- 2008-06-02 CN CN201310499625.2A patent/CN103561459B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478366A (en) * | 2000-12-11 | 2004-02-25 | ������������ʽ���� | Radio communication system |
Non-Patent Citations (2)
| Title |
|---|
| 3GPP: "Medium Access Control (MAC) protocol specification", 《3GPP TS 36.321 VERSION 8.2.0 RELEASE 8》 * |
| ERICSSON: "Handling of Timing Advance during RA", 《3GPP RAN WG2 MEETING #62, R2-082736》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103561459B (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102047737B (en) | Method for timing adjustment, mobile station, base station, and mobile communication system | |
| US10111256B2 (en) | Communications device and method for improving the transmission of random access messages | |
| US10499438B2 (en) | Methods and apparatuses for performing preamble assignment for random access in a telecommunications system | |
| US9215729B2 (en) | Method and arrangement in a telecommunications system | |
| JP5396466B2 (en) | Fast feedback competitive ranging procedure in wireless communication system | |
| EP3007511B1 (en) | Method for random access and user equipment | |
| KR20120071229A (en) | Method for transmitting data for mobile communication systems | |
| EP2651174B1 (en) | Method, apparatus, and system for communication information transmission | |
| US8428652B2 (en) | User apparatus, base station, and method in mobile communication system | |
| CN102131283B (en) | Timing regulation method, mobile station, base station and mobile communication system | |
| CN111713168B (en) | Improved user equipment and base station for prioritized random access | |
| CN103260234B (en) | Up sending control method, mobile communication system and movement station | |
| CN103228038B (en) | Timing adjustment method, mobile station, base station and mobile communication system | |
| EP3739802A1 (en) | Base station and search space allocation method thereof | |
| CN103561459B (en) | Mobile communication system, movement station, base station and timing adjusting method | |
| CN103260235B (en) | Timing adjusting method, movement station, base station and mobile communication system | |
| CN114793366A (en) | Method, device and system for indicating information in random access process | |
| EP1892977A1 (en) | Method for controlling a handover in a radio communications system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |