CN104936257A - Mobile communication system, mobile communication apparatus, and radio communication apparatus and method - Google Patents

Abstract

The invention provides a mobile communication system, a mobile communication apparatus, and a radio communication apparatus and method. In the radio communication apparatus (1), a first generation part (1a) generates a first broadcast message used in processing of first and second mobile stations; a second generation part (1b) generates a second broadcast message used in processing of the second mobile station. A sending part (1c) utilizes a first broadcast channel (4a) to send a first broadcast message, and utilizes a second broadcast channel (4b) to send a second broadcast message. In the mobile communication apparatus (2) as the second mobile station, a receiving part (2a) receives the first broadcast message sent by the first broadcast channel (4a) and the second broadcast message sent by the second broadcast channel (4b). A control part (2b) utilizes the first and second broadcast messages to control communication between the mobile communication apparatus and the radio communication apparatus (1).

Description

Mobile communication system, mobile communications device, radio communication device and method

The application to be application number be 201080061003.6 application for a patent for invention (international application no: PCT/JP2010/050192, the applying date: on January 12nd, 2010, denomination of invention: mobile communication system, radio communication device, mobile communications device and wireless communications method) divisional application.

Technical field

The present invention relates to mobile communication system, radio communication device, mobile communications device and wireless communications method.

Background technology

At present, the mobile communication system such as mobile telephone system, wireless MAN (Metropolitan Area Network: metropolitan area network) is used widely.In addition, in order to realize the high speed/high capacity of further radio communication, the discussion about next generation mobile communication technology is actively being carried out constantly.

Such as, as in the 3GPP (3rd Generation Partnership Project: third generation partner program) of one of standardization body, propose the communication standard (for example, referring to non-patent literature 1) being called LTE (Long TermEvolution: Long Term Evolution) that can use maximum 20MHz band communication.And, as the next generation communication standard of LTE, propose and the frequency band of 5 maximum 20MHz (that is, the frequency band of 100MHz) can be used to carry out the communication standard (for example, referring to non-patent literature 2) being called LTE-A (LTE-Advanced) communicated.

This next generation mobile communication system, is not that the mobile communication system being different from the previous generation defines sometimes, but defines as the expansion of the mobile communication system to the previous generation.In this situation, likely requiring that the base station corresponding with next generation communication standard and relay station have can the such backwards compatibility of the compatibility travelling carriage corresponding with the communication standard of the previous generation.Such as, above-mentioned LTE-A proposes as the communication standard expanded LTE.Therefore, may require to correspond to the base station of LTE-A and relay station can the compatible LTE of corresponding to travelling carriage and correspond to these both sides of travelling carriage of LTE-A.

In addition, propose when base station sends dedicated control signal to the terminal of subordinate, the radio resource zone of expansion can be used as Dedicated Control Channel and send the communication system (for example, referring to patent documentation 1) of dedicated control signal.In addition, propose following technology: in LTE system, use by the Access Barring Information (access barred information) of the SIB (System Information Block: system information block) of broadcast (Reported knows) channels broadcast, the access (6.3.1 for example, referring to non-patent literature 1 saves) from all travelling carriages can be forbidden in base station thus.

At first technical literature

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2009-218813 publication

Non-patent literature

Non-patent literature 1:3GPP (3rd Generation Partnership Project, third generation partner program), " Evolved Universal Terrestrial Radio Access (E-UTRA; evolved universal terrestrial wireless access) RadioResource Control (RRC, wireless heterogeneous networks); Protocol specification (protocol specification) ", 3GPP TS36.331 V9.0.0,2009-09.

Non-patent literature 2:3GPP (3rd Generation Partnership Project, third generation partner program), " Feasibility study for Further Advancements for E-UTRA (LTE-Advanced) (E-UTRA will improve feasibility study future) ", 3GPP TR 36.912 V9.0.0,2009-09.

Summary of the invention

Invent problem to be solved

But, sometimes there is following situation: the radio communication devices such as the base station corresponding with next generation communication standard and/or relay station are wanted not to be included in the Cell Broadcast CB of the information in the broadcast message of previous generation's communication standard to subordinate.Such as, LTE uses 1 frequency band (such as, 20MHz), and on the other hand, LTE-A can use multiple frequency band (such as, 20MHz × 5).Therefore, can think that the information about multiple frequency band to not broadcast in LTE is broadcasted corresponding to the base station of LTE-A and/or relay station.

But, the travelling carriage of the compatible previous generation and the radio communication device of these both sides of travelling carriage of future generation how broadcast can be carried out to the information be not included in the broadcast message of previous generation's communication standard and becomes problem.In addition, the above-mentioned problem about broadcast message is not limited only to the situation that radio communication device compatibility corresponds to the travelling carriage of LTE and the travelling carriage corresponding to LTE-A, also usually can produce this problem when the multiple travelling carriage of compatibility.

The present invention completes in view of such problem just, and its object is to provides mobile communication system, radio communication device, mobile communications device and the wireless communications method that can realize the Control on Communication of the existence considering multiple travelling carriage efficiently.

The means of dealing with problems

In order to solve above-mentioned problem, provide a kind of mobile communication system with radio communication device and mobile communications device.Radio communication device possesses the 1st generating unit, the 2nd generating unit and sending part.1st generating unit is created on the 1st broadcast message used in the 1st kind of travelling carriage and the 2nd kind of process that travelling carriage carries out.2nd generating unit is created on the 2nd broadcast message used in the 2nd kind of process that travelling carriage carries out.Sending part utilizes the 1st broadcast channel to send the 1st broadcast message, utilizes the 2nd broadcast channel to send the 2nd broadcast message.Mobile communications device as the 2nd kind of travelling carriage possesses acceptance division and control part.Acceptance division receives the 1st broadcast message utilizing the 1st broadcast channel to send and the 2nd broadcast message utilizing the 2nd broadcast channel to send.The communication that control part uses the 1st and the 2nd broadcast message received to control between radio communication device.

In addition, in order to solve above-mentioned problem, a kind of wireless communications method comprising the mobile communication system of radio communication device and mobile communications device is provided.In this wireless communications method, radio communication device is created on the 1st broadcast message used in the 1st kind of travelling carriage and the 2nd kind of process that travelling carriage carries out, and is created on the 2nd broadcast message used in the 2nd kind of process that travelling carriage carries out.Radio communication device utilizes the 1st broadcast channel to send the 1st broadcast message, utilizes the 2nd broadcast channel to send the 2nd broadcast message.Mobile communications device as the 2nd kind of travelling carriage receives the 1st broadcast message utilizing the 1st broadcast channel to send and the 2nd broadcast message utilizing the 2nd broadcast channel to send.Mobile communications device uses the 1st and the 2nd broadcast message received to control the communication between itself and radio communication device.

The effect of invention

According to above-mentioned mobile communication system, radio communication device, mobile communications device and wireless communications method, the Control on Communication of the existence considering multiple travelling carriage can be realized efficiently.

By illustrating accompanying drawing as the preferred implementation of example of the present invention and the following explanation that is associated, above-mentioned and other objects, features and advantages of the present invention will become clearly.

Accompanying drawing explanation

Fig. 1 is the figure of the mobile communication system that the 1st execution mode is shown.

Fig. 2 is the figure of the mobile communication system that the 2nd execution mode is shown.

Fig. 3 is the figure of the setting example that component carrier is shown.

Fig. 4 is the figure of the 1st example that carrier aggregation is shown.

Fig. 5 is the figure of the 2nd example that carrier aggregation is shown.

Fig. 6 is the figure of the example that spectrum aggregating is shown.

Fig. 7 is the figure of the relation illustrated between travelling carriage and component carrier.

Fig. 8 illustrates that the 1st of component carrier identifying information the distributes routine figure.

Fig. 9 illustrates that the 2nd of component carrier identifying information the distributes routine figure.

Figure 10 is the figure of the structure example that radio frames is shown.

Figure 11 illustrates that the 1st of expansion Physical Broadcast Channel the distributes routine figure.

Figure 12 illustrates that the 2nd of expansion Physical Broadcast Channel the distributes routine figure.

Figure 13 illustrates that the 3rd of expansion Physical Broadcast Channel the distributes routine figure.

Figure 14 be illustrate expansion Physical Broadcast Channel the 4th the figure of distribution example.

Figure 15 be illustrate expansion Physical Broadcast Channel the 5th the figure of distribution example.

Figure 16 be illustrate expansion Physical Broadcast Channel the 6th the figure of distribution example.

Figure 17 is the block diagram that base station is shown.

Figure 18 is the block diagram that relay station is shown.

Figure 19 is the block diagram that travelling carriage is shown.

Figure 20 is the sequence chart of the 1st connection example illustrated from travelling carriage to base station.

Figure 21 is the sequence chart of the 2nd connection example illustrated from travelling carriage to base station.

Figure 22 is the figure of the 1st sending/receiving example that expansion broadcast message is shown.

Figure 23 is the figure of the 2nd sending/receiving example that expansion broadcast message is shown.

Figure 24 is the figure of the 3rd sending/receiving example that expansion broadcast message is shown.

Embodiment

Below, with reference to accompanying drawing, present embodiment is described in detail.

[the 1st execution mode]

Fig. 1 is the figure of the mobile communication system that the 1st execution mode is shown.The mobile communication system of the 1st execution mode comprises radio communication device 1 and mobile communications device 2,3.

Radio communication device 1 can carry out radio communication with the 1st kind and the 2nd kind of travelling carriage.Radio communication device 1 is such as base station or the relay station between the base station and mobile station radio communication being carried out to relaying.Mobile communications device 2 is the 2nd kind of travelling carriages, and mobile communications device 3 is the 1st kind of travelling carriages.Mobile communications device 2,3 is such as the wireless terminal device such as portable phone or mobile information terminal apparatus.

Radio communication device 1 has the 1st generating unit 1a, the 2nd generating unit 1b and sending part 1c.1st generating unit 1a generates the 1st broadcast message of the 1st kind and the 2nd kind these two kinds of travelling carriage references.2nd generating unit 1b generate the 1st kind of travelling carriage not with reference to and the 2nd broadcast message of the 2nd kind of travelling carriage reference.The 1st broadcast message that 1st generating unit 1a generates by sending part 1c is undertaken sending (broadcast) by the 1st broadcast channel 4a.In addition, the 2nd broadcast message that the 2nd generating unit 1b generates by sending part 1c is undertaken sending (broadcast) by the 2nd broadcast channel 4b being different from the 1st broadcast channel 4a.

Mobile communications device 2 has acceptance division 2a and control part 2b.Acceptance division 2a receives the 1st broadcast message sent by the 1st broadcast channel 4a from radio communication device 1.In addition, acceptance division 2a receives the 2nd broadcast message sent by the 2nd broadcast channel 4b.The the 1st and the 2nd these both sides of broadcast message that control part 2b receives with reference to acceptance division 2a, control the communication between radio communication device 1.On the other hand, mobile communications device 3 receives the 1st broadcast message, but does not receive the 2nd broadcast message.That is, mobile communications device 3 is not with reference to the 2nd broadcast message, controls the communication between radio communication device 1.

Herein, radio communication device 1 also can use multiple frequency band to carry out radio communication.In this situation, the information (such as, the information of the bandwidth of frequency band is shown) being used for using this frequency band and radio communication device 1 to carry out being connected about each frequency band can be contained in the 1st broadcast message and send by radio communication device 1.And, the packets of information of the relation illustrated between multiple frequency band and the kind of travelling carriage can be contained in the 2nd broadcast message and send.

On the other hand, mobile communications device 2 based on the 2nd broadcast message, can judge the 2nd kind of operable frequency band of travelling carriage in multiple frequency band.Then, can, according to about the 1st broadcast message being judged as operable frequency band, this frequency band be utilized to be connected with radio communication device 1.Illustrate that the information of the relation between multiple frequency band and the kind of travelling carriage such as can be defined as the information with following meaning.

1) information of the 2nd kind of operable frequency band of travelling carriage is specified

2) information of the 2nd kind of non-serviceable frequency band of travelling carriage is specified

3) represent that the frequency band of the transmission being used for this information is the information of the 2nd kind of operable frequency band of travelling carriage

4) represent that the frequency band of the transmission being used for this information is the information of the 2nd kind of non-serviceable frequency band of travelling carriage

In addition, radio communication device 1 can give identifying information to multiple frequency band respectively.Identifying information can for illustrating the relation between multiple frequency band and the kind of travelling carriage in the 2nd broadcast message.Such as, community ID or numbering unique in same community etc. can be used as identifying information.When using community ID as identifying information, to 1 multiple community ID of cell allocation.In addition, multiple frequency band may be identified as (imaginary) different community by travelling carriage respectively.

1st broadcast channel 4a such as sets respectively in multiple frequency band.2nd broadcast channel 4b can set respectively in multiple frequency band, also can only set in the frequency band of a part.When the latter, consider the method having setting in the frequency band (such as, being in the frequency band of central authorities at frequency axis) of regulation or the method set in the 2nd kind of operable frequency band of travelling carriage.In addition, in the radio resource zone of specifying according to frequency and time, the 2nd broadcast channel 4b can be set as adjoining with the 1st broadcast channel 4a.In addition, also the 2nd broadcast channel 4b can be set as adjoining with the synchronizing channel being used for sending synchronizing signal.

In addition, this mobile communication system such as can be embodied as lte-a system.In this situation, can using the 1st kind of travelling carriage as correspond to LTE travelling carriage, using the 2nd kind of travelling carriage as correspond to LTE-A travelling carriage and realize.In addition, can using the 1st broadcast channel 4a as definition common in LTE and LTE-A broadcast channel, the 2nd broadcast channel 4b is realized as the expansion broadcast channel do not defined in LTE.In addition, in LTE-A, sometimes above-mentioned multiple frequency band is called component carrier (CC:Component Carrier) or carrier component (CC:Carrier Component) respectively.

In the mobile communications device of this 1st execution mode, by radio communication device 1, the 1st broadcast message used in the process of generation the 1st and the 2nd kind of travelling carriage, generates the 2nd broadcast message used in the process of the 2nd kind of travelling carriage.Send the 1st broadcast message by the 1st broadcast channel 4a, send the 2nd broadcast message by the 2nd broadcast channel 4b.In addition, the 1st broadcast message sent by the 1st broadcast channel 4a and the 2nd broadcast message sent by the 2nd broadcast channel 4b is received by mobile communications device 2.Based on the receive the 1st and the 2nd broadcast message, control the communication between radio communication device 1 and mobile communications device 2.

That is, by the 1st kind of travelling carriage, with reference to (or can not with reference to), the broadcast message of the 2nd kind of travelling carriage reference not be broadcasted by the broadcast channel of the broadcast message being different from the 1st kind and the 2nd kind common reference of travelling carriage.Thereby, it is possible to realize the Control on Communication considering the existence of multiple travelling carriage efficiently.

Such as, when realizing as lte-a system, considering the broadcast message defined by LTE to be broadcasted by broadcast channel in the past, in addition, the broadcast message added by LTE-A being broadcasted by expansion broadcast channel.In this situation, the travelling carriage (not corresponding to the travelling carriage of LTE-A) corresponding to LTE can receive broadcast message in the past, and the travelling carriage corresponding to LTE-A can receive additional broadcast message.That is, the efficient lte-a system with backwards compatibility can be realized.

Further, in the 2nd broadcast message, comprise the information of the relation illustrated between multiple frequency band and the kind of travelling carriage and broadcast, thereby, it is possible to the distribution easily carrying out Radio Resource controls.That is, specify in advance in the 2nd kind of travelling carriage and want use the frequency band of (or not wanting to use) and broadcast, thereby, it is possible to easily the 2nd kind of travelling carriage to be directed to the frequency band of a part.Particularly when lte-a system, the travelling carriage corresponding to LTE only uses 1 frequency band, and on the other hand, the travelling carriage corresponding to LTE-A can use multiple frequency band, and therefore above-mentioned guiding is useful on this aspect of utilization ratio realizing raising Radio Resource.

In the 2nd following execution mode, consider that the wireless communications method by the 1st execution mode is applied to the situation of lte-a system.But, above-mentioned wireless communications method can certainly be applied to the mobile communication system of other kinds.

[the 2nd execution mode]

Fig. 2 is the figure of the mobile communication system that the 2nd execution mode is shown.The mobile communication system of the 2nd execution mode has base station 100, relay station 200 and travelling carriage 300,400.This mobile communication system is corresponding with the communication standard of LTE-A.

Base station 100 is direct or can carries out the radio communication device of radio communication with travelling carriage 300,400 via relay station 200.Base station 100 is connected with wired upper network (not shown), between upper network and travelling carriage 300,400, transmit data.Base station 100 manages 3 communities (sometimes also referred to as sector) of subordinate.Base station 100 uses 5 component carriers (hereinafter referred to as CC) in wireless communications.

Relay station 200, when having travelling carriage 300,400 in the community of subordinate, radio communication is carried out to the radio communication device of relaying between base station 100 and travelling carriage 300,400.Relay station 200 is also referred to as relay station.Relay station 200 5 CC that service band is identical with base station 100 in wireless communications.

Travelling carriage 300,400 is connected with base station 100 or relay station 200 and carries out the wireless terminal device of radio communication, such as, is portable phone or mobile information terminal apparatus etc.Travelling carriage 300 is down link (from base station 100 or relay station 200 to the wireless link of travelling carriage 300), 5 CC can be used to receive data at most simultaneously, up link (from travelling carriage 300 to the wireless link of base station 100 or relay station 200), 2 CC can be used to send data at most simultaneously.On the other hand, travelling carriage 400 only uses arbitrary 1 CC send/receive data in down link and up link.

Herein, in the present embodiment, using the travelling carriage of multiple CC to be called LTE travelling carriage by not integrating, can integrate and use the travelling carriage of multiple CC to be called LTE-A travelling carriage.Travelling carriage 300 is LTE-A travelling carriages, and travelling carriage 400 is LTE travelling carriages.LTE-A travelling carriage can be connected with base station 100 and relay station 200 with these both sides of LTE travelling carriage.

In addition, in 3 gpp, the communication standard of LTE is defined by the specification of version 8 (release 8), and the communication standard of LTE-A is defined by the specification of version 10 (release 10).But the travelling carriage corresponding to version 10 may not be all to integrate the travelling carriage (LTE-A travelling carriage) using multiple CC.That is, the LTE travelling carriage corresponding with version 10 may also be there is.In addition, in the present embodiment, using correspond to version 9 travelling carriage with corresponding to version 8 travelling carriage in the same manner as the process of LTE travelling carriage.

Fig. 3 is the figure of the setting example that component carrier is shown.As shown in Figure 3, base station 100 and relay station 200 use 5 CC.When using Frequency Division Duplexing (FDD) (FDD:Frequency Division Duplex) in order to two-way communication, respectively for down link (DL:DownLink) and up link (UL:UpLink), guarantee the frequency band of CC#1 ~ #5.Below, the group of the frequency band of DL and the frequency band of UL is referred to when being only called CC#1 ~ #5.The CC bandwidth separately of DL and UL is 20MHz, and all bandwidth are 100MHz.Base station 100 and relay station 200 carry out the distribution (scheduling) of Radio Resource respectively for CC#1 ~ #5.

In addition, in the example in figure 3, achieve two-way communication by FDD, but also can pass through time division duplex (TDD:Time Division Duplex) and realize two-way communication.In this situation, on the frequency axis, do not distinguish DL and UL and 5 CC are set.In addition, in the example in figure 3, by the setting of the bandwidth of whole CC in order to 20MHz, but other bandwidth (such as, 5MHz, 10MHz, 15MHz etc.) can be also set as.In addition, also can not the bandwidth of whole CC be set as identical.

In addition, in the example in figure 3, UL Radio Resource is arranged on lower frequency side, DL Radio Resource is arranged on high frequency side.The transmission loss of the signal that frequency is low is less, therefore by UL Radio Resource is arranged on lower frequency side, the transmitted power of travelling carriage 300,400 can be suppressed for lower.But, also the configuration of UL Radio Resource and DL Radio Resource can be put upside down.

Thus, the multiple CC in travelling carriage 300 couples of CC#1 ~ #5 integrate, and can send/receive the data employing the bandwidth (such as, 40MHz, 60MHz, 80MHz, 100MHz etc.) wider than the bandwidth (such as, 20MHz) of 1 CC.

Herein, CC#1 ~ #5 all can be set to any 1 in the frequency bands such as 800MHz frequency band, 2.5GHz frequency band, 3.5GHz frequency band, can scattering device be also different multiple frequency bands.Carry out integration be called carrier aggregation (Carrier Aggregation) by belonging to the multiple continuous of same frequency band or discontinuous CC.On the other hand, spectrum aggregating (Spectrum Aggregation) is called by carrying out integration to the CC belonging to different frequency band.

Fig. 4 is the figure of the 1st example that carrier aggregation is shown.In the example in fig. 4, in 3.5GHz frequency band, as operable frequency band in wireless communications, the frequency band of 4 discontinuous 5MHz width and the frequency band of 3 discontinuous 20MHz width are prepared.And, the frequency band of 4 5MHz is integrated, thus form the CC#2 of 20MHz width.In addition, the frequency band of 1 20MHz width is defined as CC#3.

CC#2, CC#3 such as can be used as the frequency band (being 1 frequency band in logic) of 40MHz by carrier aggregation by travelling carriage 300.In this situation, in fact, travelling carriage 300 uses and belongs to the frequency band of 4 5MHz width of 3.5GHz frequency band and the frequency band of 1 20MHz width.In addition, list the example belonging to 3.5GHz frequency band in the diagram, even if but other the frequency band such as 800MHz frequency band, also can the integrating frequency width frequency band less than 20MHz and utilizing.

Fig. 5 is the figure of the 2nd example that carrier aggregation is shown.In the example of Fig. 5, in 3.5GHz frequency band, as operable frequency band in wireless communications, prepare the frequency band of continuous print 80MHz width.And the frequency band of this 80MHz width is divided into 4, is defined as the CC#2 ~ #5 of 20MHz width respectively.

CC#2, CC#3 such as can be used as the frequency band (being 1 frequency band in logic) of 40MHz by carrier aggregation by travelling carriage 300.In this case, in fact travelling carriage 300 uses the part belonged in the frequency band of the continuous print 80MHz width of 3.5GHz frequency band.

Fig. 6 is the figure of the example that spectrum aggregating is shown.In the example of fig. 6, in 2GHz frequency band, as in wireless communications can service band, prepare the frequency band of continuous print 20MHz width.In addition, in 3.5GHz frequency band, as operable frequency band in wireless communications, the frequency band of continuous print 80MHz width has been prepared.And the frequency band of the 20MHz width of 2GHz frequency band is defined as CC#1, and the frequency band of the 80MHz width of 3.5GHz frequency band is split into 4, is defined as the CC#2 ~ #5 of 20MHz width respectively.

CC#1 ~ #5 such as can be used as the frequency band (being 1 frequency band in logic) of 100MHz by spectrum aggregating by travelling carriage 300.In this case, in fact travelling carriage 300 uses the frequency band of the frequency band belonging to the 20MHz width of 2GHz frequency band and the continuous print 80MHz width belonging to 3.5GHz frequency band.In addition, as shown in Figure 4, the multiple frequency bands being less than the band width of 20MHz belonging to 2GHz frequency band can be integrated and form CC#1.

Fig. 7 is the figure of the relation illustrated between travelling carriage and component carrier.Travelling carriage 400 is LTE travelling carriage as mentioned above.Therefore, travelling carriage 400 does not apply carrier aggregation or spectrum aggregating, but uses the some sending/receivings of carrying out data in CC#1 ~ #5.That is, the frequency band of maximum use 20MHz width.

On the other hand, travelling carriage 300 is LTE-A travelling carriages.Therefore, travelling carriage 300 applies carrier aggregation and spectrum aggregating, thus, the multiple CC in CC#1 ~ #5 can be used to carry out the sending/receiving of data.That is, the transmission (uplink communication) of the data of the frequency band employing 20MHz width or 40MHz width can be carried out.In addition, the reception (downlink communication) of the data of the frequency band employing 20MHz width, 40MHz width, 60MHz width, 80MHz width or 100MHz width can be carried out.

In addition, base station 100 and relay station 200, in the community of subordinate, in order to identify CC#1 ~ #5, distribute ID to each CC.Such as, the distribution method of following methods as ID can be considered.

1) each CC is distributed to the method for community ID

Usually in LTE system, to each cell allocation 1 community ID.On the other hand, to each cell allocation 5 community ID.So, by 5 community ID and CC#1 ~ #5 is corresponding, each CC can be identified.

2) each CC is distributed to the method for Extended Cell ID

Usually in LTE system, prepare 504 community ID, travelling carriage uses community ID to identify peripheral cell respectively.If to each cell allocation 5 community ID, be then envisioned that in the design of mobile communication system, there is the situation of the problem of community ID exhaustion.In this situation, the Extended Cell ID that definition sum is more than the community ID defined by LTE, to each cell allocation 5 Extended Cell ID.So, by 5 Extended Cell ID and CC#1 ~ #5 is corresponding, each CC can be identified thus.

3) each CC is distributed in the method for numbering unique in community

At least unique in community numbering is distributed to CC#1 ~ #5 as CC numbering.Such as, to each community, give that CC#1 is " 1 ", CC#2 is " 2 ", CC#3 is " 3 ", CC#4 is " 4 ", CC#5 is " 5 " such numbering.In addition, if cell number at least in community uniquely, but also can give continuous print numbering to the CC of multiple community.Such as, continuous print numbering can be given to the CC of multiple communities that identical base station or relay station manage.

Fig. 8 illustrates that the 1st of component carrier identifying information the distributes routine figure.Have employed the above-mentioned 1st or the 2nd method in the example of fig. 8.Community ID (or Extended Cell ID) " 1 " ~ " 5 " are distributed to the CC#1 ~ #5 of the 1st community that base station 100 manages.Community ID (or Extended Cell ID) " 6 " ~ " 10 " are distributed to the CC#1 ~ #5 of the 2nd community.Community ID (or Extended Cell ID) " 11 " ~ " 15 " are distributed to the CC#1 ~ #5 of the 3rd community.In addition, community ID (or Extended Cell ID) " 16 " ~ " 20 " are distributed to the CC#1 ~ #5 of the community that relay station 200 manages.

Fig. 9 illustrates that the 2nd of component carrier identifying information the distributes routine figure.Above-mentioned 3rd method is have employed in the example of Fig. 9.Distribute cell number " 1 " ~ " 5 " to the CC#1 ~ #5 of the 1st community that base station 100 manages, distribute cell number " 6 " ~ " 10 " to the CC#1 ~ #5 of the 2nd community, distribute cell number " 11 " ~ " 15 " to the CC#1 ~ #5 of the 3rd community.In addition, cell number " 1 " ~ " 5 " are distributed to the CC#1 ~ #5 of the community that relay station 200 manages.

Figure 10 is the figure of the structure example that radio frames is shown.Respectively in CC#1 ~ #5, radio frames as shown in Figure 10 between base station 100 and travelling carriage 300,400, and is transmitted/received between relay station 200 and travelling carriage 300,400.But the structure shown in Figure 10 is an example, and the structure of radio frames is not limited thereto.

In this embodiment, in the radio frames in 10ms cycle, comprise the subframe (subframe #0 ~ #9) of 10 1ms width.The time slot of 2 0.5ms width is comprised in each subframe.That is, in the radio frames in 10ms cycle, comprise 20 time slots (time slot #0 ~ #19).

In DL radio frames, will be used for sending the primary synchronization channel (P-SCH:PrimarySynchronization CHannel) of synchronizing signal and be assigned to time slot #0, #10 from synchronizing channel (S-SCH:Secondary SynchronizationCHannel).In addition, time slot #1 is distributed by the Physical Broadcast Channel (PBCH:Physical Broadcast CHannel) and expansion Physical Broadcast Channel (E-PBCH:ExtendedPhysical Broadcast CHannel) that are used for transmission (broadcast) broadcast message.

Radio Resource in radio frames is segmented on time orientation and frequency direction and manages.OFDMA (Orthogonal Frequency Division Multiple Access: orthogonal frequency-time multiple access) is used to DL frame, SC-FDMA (Single-Carrier Frequency Division Multiple Access: single-carrier frequency division multiple access accesses) is used to UL frame.By time × allocation of radio resources in region of frequency is to various channel.

About time orientation, time slot comprises 7 or 6 symbols.The blank signal being called CP (Cyclic Prefix: Cyclic Prefix) is inserted with in symbol.In CP, exist and be called as the common CP 2 kind CPs different with the length of expansion CP.When common CP, in 1 time slot, comprising 7 symbols, when expanding CP, in 1 time slot, comprising 6 symbols.About frequency direction, CC comprises multiple subcarrier.

Figure 11 illustrates that the 1st of expansion Physical Broadcast Channel the distributes routine figure.In fig. 11, being longitudinally time shaft, is laterally frequency axis.In addition, the example of Figure 11 shows and uses common CP as the situation of CP, namely comprises the situation of 7 symbols in 1 time slot.

In DL frame, PCFICH (Physical Control Format Indicator CHannel: Physical Control Format Indicator Channel) and PHICH (Physical Hybrid automatic repeat request Indicator CHannel: physical hybrid automatic repeat request indicator channel) is assigned to the 1st symbol of time slot #0.PCIFH is the channel of the quantity for notifying the symbol that Downlink Physical control channel (PDCCH:Physical Downlink Control CHannel) distributes.PHICH is the channel that ACK (ACKnowledgement: response) replys or NACK (Negative ACKnowledgement: negative response) replys for returning data receiver.PHICH is also assigned to the 3rd symbol sometimes.

In addition, above-mentioned PDCCH is assigned to the 1st symbol of time slot #0.PDCCH is the channel of the control information for sending L1/L2 (Layer1/Layer 2 (1/ layer 2, layer)).PDCCH is also assigned to the 2nd symbol and the 3rd symbol sometimes.The symbolic number of PDCCH can change between 1 ~ 3.

In addition, aforesaid S-SCH is assigned to the 6th symbol of time slot #0, aforesaid P-SCH is assigned to the 7th symbol.P-SCH sends the channel of any one in the master sync signal sequence of specified quantity (such as 3).S-SCH is the channel from any one synchronous signal sequence sending specified quantity (such as 168).The combination (such as, 3 × 168=504 kinds are combined) of P-SCH sequence and S-SCH sequence is corresponding with community ID.

When adopting aforesaid 1st method as ID distribution method to CC, that is, when by mutually different cell ID allocation to CC#1 ~ #5, P-SCH sequence and S-SCH sequence are different according to CC.In addition, as previously mentioned, also P-SCH and S-SCH is assigned to time slot #10.But although the P-SCH sequence sent by time slot #10 is identical with the content sent by time slot #0, the S-SCH sequence sent by time slot #10 is different from the content sent by time slot #0.

In addition, aforesaid PBCH is assigned to the 1st ~ 4th symbol of time slot #1, aforesaid E-PBCH is assigned to the 5th ~ 7th symbol.On radio resource zone, E-PBCH and PBCH is adjacent on time orientation.PBCH is the broadcast channel jointly defined by LTE and LTE-A.E-PBCH is the broadcast channel added by LTE-A.That is, the travelling carriage 300 as LTE-A travelling carriage can detect these both sides of PBCH and E-PBCH.On the other hand, the travelling carriage 400 as LTE travelling carriage can detect PBCH, but can not detect E-PBCH.

In the broadcast message sent by PBCH, comprise the information be connected with the CC being provided with this PBCH for travelling carriage 300,400.Such as, the information that bandwidth (such as, 5MHz, 10MHz, 15MHz, 20MHz etc.) are shown is comprised in the broadcast message of PBCH.This is because in LTE and LTE-A, bandwidth is variable.

In the broadcast message sent by E-PBCH (expansion broadcast message), the information about being provided with multiple CC can be comprised.Such as, in order to easily dispatch, also consider that base station 100 or relay station 200 limit the CC that can connect LTE travelling carriage and the CC that can connect LTE-A travelling carriage.In this situation, consider the packets of information of the corresponding relation illustrated between CC#1 ~ #5 and the kind of travelling carriage to be contained in expansion broadcast message and send.Thus, the travelling carriage 300 as LTE-A travelling carriage can know the CC allowing to connect before the access to base station 100 or relay station 200, can make connection handling high efficiency.

As the method for the corresponding relation represented between CC#1 ~ #5 and the kind of travelling carriage, consider to have specify can connect the CC of LTE-A travelling carriage method, specify can not connect the CC of LTE-A travelling carriage method, specify and can connect the method for the CC of LTE travelling carriage, specify the method etc. that can not connect the CC of LTE travelling carriage.In expansion broadcast message, in order to represent CC, the ID that each CC is given can be used.But expansion broadcast message is not limited only to the information of the corresponding relation illustrated between CC#1 ~ #5 and the kind of travelling carriage, also can comprise other various information.

As shown in figure 11, the frequency (subcarrier) that S-SCH, P-SCH, PBCH and E-PBCH can not be assigned to 1 CC is all, and is only assigned to the frequency (subcarrier) of a part.Such as, the central authorities being assigned to CC pay near frequency.The border not being assigned to CC is paid near but is assigned to central authorities to pay near frequency be Channel Detection for the ease of travelling carriage 300,400.The frequency being assigned to E-PBCH can be identical with the frequency being assigned to PBCH, also can be different.

In addition, in DL frame, be used in a part for the resource beyond the Radio Resource that uses in above-mentioned channel, send the contrast signal (RS:Reference Signal) as known pilot signal.Travelling carriage 300,400 can use contrast signal to measure received power and the quality of reception.

Figure 12 illustrates that the 2nd of expansion Physical Broadcast Channel the distributes routine figure.The distribution example of Figure 12 is except the desired location of E-PBCH, identical with the example shown in Figure 11.In the example in figure 12, E-PBCH is assigned to the 4th ~ 5th symbol of time slot #0.On radio resource zone, E-PBCH and S-SCH is adjacent on time orientation.The frequency being assigned to E-PBCH can be identical with the frequency being assigned to S-SCH, also can be different.

Figure 13 illustrates that the 3rd of expansion Physical Broadcast Channel the distributes routine figure.The distribution example of Figure 13 is except the desired location of E-PBCH, identical with the example shown in Figure 11,12.In the example of Figure 13, E-PBCH is assigned to the 4th ~ 5th symbol of time slot #0 and the 5th ~ 7th these both sides of symbol of time slot #1.On radio resource zone, E-PBCH and S-SCH and PBCH is adjacent on time orientation.The frequency being assigned to E-PBCH can be identical with the frequency being assigned to S-SCH and PBCH, also can be different.

Thus, by increasing the amount being assigned to the Radio Resource of E-PBCH, can send and more expand broadcast message.Also can change according to the amount of the expansion broadcast message that will send the Radio Resource being assigned to E-PBCH.In addition, as shown in Figure 11 ~ 13, make at least one party of E-PBCH and synchronizing channel and PBCH adjacent on time orientation, thus, the detection of the E-PBCH that travelling carriage 300 carries out becomes easy.But, also can be set as not on time orientation, but adjoin in a frequency direction.In addition, any one that also can be set as making in E-PBCH and synchronizing channel and PBCH does not all adjoin.

Figure 14 illustrates that the 4th of expansion Physical Broadcast Channel the distributes routine figure.The distribution example of Figure 14 is except the desired location of E-PBCH, identical with the example shown in Figure 11 ~ 13.In the example of Figure 14, E-PBCH is assigned to the 7th symbol of time slot #1.On radio resource zone, E-PBCH does not adjoin with PBCH.The frequency being assigned to E-PBCH can be identical with the frequency being assigned to PBCH, also can be different.

Figure 15 illustrates that the 5th of expansion Physical Broadcast Channel the distributes routine figure.The distribution example of Figure 15 is except the desired location of E-PBCH, identical with the example shown in Figure 11 ~ 14.In the example of Figure 15, E-PBCH is assigned to the 4th symbol of time slot #0.On radio resource zone, E-PBCH does not adjoin with S-SCH.The frequency being assigned to E-PBCH can be identical with the frequency being assigned to S-SCH, also can be different.

Figure 16 illustrates that the 6th of expansion Physical Broadcast Channel the distributes routine figure.The distribution example of Figure 16 is except the desired location of E-PBCH, identical with the example shown in Figure 11 ~ 15.In the example of Figure 16, E-PBCH is assigned to the 6th symbol of time slot #1.On radio resource zone, E-PBCH does not adjoin with PBCH.The frequency being assigned to E-PBCH can be identical with the frequency being assigned to PBCH, also can be different.

Above, in Figure 11 ~ 16, enumerate and used common CP as the example of the situation (when comprising 7 symbols in 1 time slot) of CP, but same consideration method also can have been adopted to set E-PBCH in use expansion CP is as the situation (comprising the situation of 6 symbols in 1 time slot) of CP.In this case, such as, in the method for Figure 11, E-PBCH is assigned to the 5th ~ 6th symbol of time slot #1, in the method for Figure 12, E-PBCH is assigned to the 4th symbol of time slot #0, in the method for Figure 13, E-PBCH is assigned to the 4th symbol of time slot #0 and the 5th ~ 6th symbol of time slot #1, in the method for Figure 14, E-PBCH is assigned to the 6th symbol of time slot #1.

Figure 17 is the block diagram that base station is shown.Base station 100 has send/receive antenna 111, wireless receiving section 112, demodulating and decoding portion 113, quality information extraction unit 114, scheduler 115, RA control signal extraction unit 116, RA control part 117, RA control signal generating unit 118, broadcast message generating unit 119, expansion broadcast message generating unit 120, control information generating unit 121, synchronizing signal generating unit 122, RS generating unit 123, mapping portion 124, coded modulation portion 125 and wireless transmission part 126.

Send/receive antenna 111 receives the wireless signal of relay station 200 and travelling carriage 300,400 transmission, and outputs to wireless receiving section 112.In addition, the transmission signal wireless obtained from wireless transmission part 126 exports by send/receive antenna 111.In addition, may not be the antenna of sending/receiving dual-purpose, and transmission antenna and antenna for receiving are set respectively in base station 100.In addition, multiple send/receive antenna can be used, carry out diversity transmission.

Wireless receiving section 112 carries out wireless signal process to the signal obtained from send/receive antenna 111, carries out the conversion (frequency reducing conversion) from the wireless signal of high frequency to the baseband signal of low frequency.Wireless receiving section 112 possesses such as low noise amplifier (LNA:Low Noise Amplifier), frequency converter, band pass filter (BPF:Band PassFilter), A/D (Analog to Digital: modulus) transducer etc., to carry out wireless signal process.The frequency band receiving object is indicated by scheduler 115.

Demodulating and decoding portion 113 carries out demodulation and error correction decoding to the baseband signal obtained from wireless receiving section 112, and the data obtained (comprising user data and control information) is exported.Demodulation and decoding is carried out with the method corresponding with the modulation coding mode (MCS:Modulation and Coding Scheme) specified or the modulation coding mode indicated by scheduler 115.The candidate of modulation system comprises the digital modulation mode of QPSK (Quadrature Phase Shift Keying: Quadrature Phase Shift Keying) and 16QAM (Quadrature Amplitude Modulation: quadrature amplitude modulation) etc.The candidate of coded system comprises Turbo coding and low-density checksum (LDPC:LowDensity Parity Check) coding.The user data extracted is converted into block form, and is sent to upper network.

Quality information extraction unit 114 extracts the control information that travelling carriage 300,400 sends, i.e. mensuration report (Measurement Report) of wireless quality.Further, quality information extraction unit 114 by the mensuration report output that extracts to scheduler 115.

Scheduler 115, based on the mensuration report obtained from quality information extraction unit 114, carries out the distribution of the Radio Resource to travelling carriage 300,400.Then, the distribution condition of Radio Resource is informed to wireless receiving section 112, demodulating and decoding portion 113, RA control signal generating unit 118, coded modulation portion 125 and wireless transmission part 126.In addition, scheduler 115, based on mensuration report, suitably selects modulation coding mode.Then, selected modulation coding mode is informed to demodulating and decoding portion 113 and coded modulation portion 125.

When travelling carriage 300,400 Stochastic accessing (RA), RA control signal extraction unit 116 extracts the control signal being sent to base station 100.Stochastic accessing is when travelling carriage 300,400 is connected with base station 100, the process of carrying out between.In the control signal that RA control signal extraction unit 116 is extracted, comprise the Stochastic accessing preamble that sends of Physical Random Access Channel (PRACH:Physical Random Access CHannel) that utilizes and UL radio frames is arranged and utilize uplink physical to have channel (PUSCH:Physical Uplink SharedCHannel) the scheduled transmission signal sent.

RA control part 117, based on the control signal extracted by RA control signal extraction unit 116, controls Stochastic accessing.Specifically, when Stochastic accessing preamble being detected, RA control part 117 judges that whether the CC of the transmission being used for this signal is corresponding with the kind (LTE travelling carriage or LTE-A travelling carriage) as the travelling carriage sending starting point, determines to accept.Then, determination result is informed to RA control signal generating unit 118.In addition, when scheduled transmission signal correctly being detected, this situation is informed to RA control signal generating unit 118 by RA control part 117.

RA control signal generating unit 118, based on the notice coming child scheduler 115 and RA control part 117, sends to the control signal of travelling carriage 300,400 when being created on Stochastic accessing.Specifically, RA control signal generating unit 118 generates and represents that the accidental access response signal that could accept is as the response to Stochastic accessing preamble.In addition, contention resolved (contention resolution) signal is generated as the response to scheduling signal transmission.

Broadcast message generating unit 119 generates the broadcast message being sent (broadcast) by PBCH by each CC.This broadcast message comprises the information etc. of the bandwidth that this CC is shown.Expansion broadcast message generating unit 120 generates the expansion broadcast message being sent (broadcast) by E-PBCH.Expansion broadcast message comprises the information illustrating that CC#1 ~ #5 is corresponding with the kind of travelling carriage.Control information generating unit 121 generates the control information of the L1/L2 sent by PDCCH.This control information comprises the information etc. of the allocation result that UL Radio Resource is shown and/or the modulation coding mode applied.Synchronizing signal generating unit 122 generates P-SCH sequence and S-SCH sequence by each CC.RS generating unit 123 generates the contrast signal as known signal.

Mapping portion 124 by from upper network reception to user data and control information/control signal of generating of RA control signal generating unit 118, broadcast message generating unit 119, expansion broadcast message generating unit 120, control information generating unit 121, synchronizing signal generating unit 122 and RS generating unit 123 be mapped to DL radio frames.Then, successively the data after mapping are outputted to coded modulation portion 125.

Coded modulation portion 125 carries out error correction coding and modulation to the data obtained from mapping portion 124, generates the baseband signal as sending signal, and outputs to wireless transmission part 126.The modulation coding mode that coding and modulation use regulation or the modulation coding mode indicated by scheduler 115.The candidate of modulation system comprises the digital modulation modes such as QPSK and 16QAM.The candidate of coded system comprises Turbo coding and LDPC coding.

Wireless signal process is carried out to the transmission signal obtained from coded modulation portion 125 in wireless transmission part 126, carries out the conversion (up-conversion) from the baseband signal of low frequency to the wireless signal of high frequency.Wireless transmission part 126 such as possesses D/A (Digital to Analog: digital-to-analogue) transducer, frequency converter, band pass filter, power amplifier etc., to carry out the process of wireless signal.The frequency band of sending object is indicated by scheduler 115.

Figure 18 is the block diagram that relay station is shown.Relay station 200 has send/receive antenna 211, send/receive antenna 228, wireless receiving section 212, demodulating and decoding portion 213, quality information extraction unit 214, scheduler 215, RA control signal extraction unit 216, RA control part 217, RA control signal generating unit 218, broadcast message generating unit 219, expansion broadcast message generating unit 220, control information generating unit 221, synchronizing signal generating unit 222, RS generating unit 223, mapping portion 224, coded modulation portion 225, wireless transmission part 226 and base station side Department of Communication Force 227.

The process identical with module of the same name the base station 100 shown in Figure 18 is performed from send/receive antenna 211 to the module of wireless transmission part 226.These modules carry out the wireless communication process between relay station 200 and travelling carriage 300,400.

Base station side Department of Communication Force 227 carries out the wireless communication process between relay station 200 and base station 100.Base station side Department of Communication Force 227 carries out error correction coding, modulation and raising frequency to the user data obtained from demodulating and decoding portion 213 (the transmission data of travelling carriage 300,400), and the transmission signal obtained is outputted to send/receive antenna 228.In addition, base station side Department of Communication Force 227 carries out frequency reducing, demodulation and error correction decoding to the wireless signal obtained from send/receive antenna 228, and the user data extracted (the transmission data of base station 100) is outputted to mapping portion 224.

Send/receive antenna 228 receives the wireless signal that base station 100 sends, and outputs to base station side Department of Communication Force 227.In addition, send/receive antenna 228 carries out wireless output to the transmission signal obtained from base station side Department of Communication Force 227.In addition, also send/receive antenna 211 and send/receive antenna 228 can not be set respectively, and base station 100 and these both sides of travelling carriage 300,400 are set can walk abreast and carry out the send/receive antenna of radio communication.

Figure 19 is the block diagram that travelling carriage is shown.Travelling carriage 300 has send/receive antenna 311, wireless receiving section 312, demodulating and decoding portion 313, control information extraction unit 314, broadcast message extraction unit 315, expansion broadcast message extraction unit 316, synchronizing signal extraction unit 317, Synchronization Control portion 318, terminal control portion 319, RS extraction unit 320, quality determination portion 321, quality information generating unit 322, received power determination part 323, community selection portion 324, RA control signal extraction unit 325, RA control part 326, RA control signal generating unit 327, coded modulation portion 328 and wireless transmission part 329.

Send/receive antenna 311 receives the wireless signal of base station 100 and relay station 200 transmission, and outputs to wireless receiving section 312.In addition, send/receive antenna 311 carries out wireless output to the transmission signal obtained from wireless transmission part 329.In addition, also transmission antenna and antenna for receiving can be set in addition on travelling carriage 300, instead of the antenna of sending/receiving dual-purpose.In addition, multiple send/receive antenna can be used, carry out diversity transmission.

Wireless receiving section 312 carries out wireless signal process to the signal obtained from send/receive antenna 311, carries out the conversion (frequency reducing) from the wireless signal of high frequency to the baseband signal of low frequency.Wireless receiving section 312 possesses such as low noise amplifier, frequency converter, band pass filter, A/D converter etc., to carry out wireless signal process.The frequency band receiving object is indicated by terminal control portion 319.

Demodulating and decoding portion 313 carries out demodulation and error correction decoding to the baseband signal obtained from wireless receiving section 312, and the data obtained (comprising user data and control information) is exported.Demodulation and decoding is carried out with the method corresponding with the modulation coding mode specified or the modulation coding mode indicated by terminal control portion 319.

The control information of the L1/L2 that control information extraction unit 314 pairs of base stations 100 or relay station 200 utilize PDCCH to send is extracted.This control information comprises the information etc. of the distribution that UL Radio Resource is shown and/or the modulation coding mode applied.Then, the control information extracted is outputted to terminal control portion 319 by control information extraction unit 314.

Broadcast message extraction unit 315 is extracted the broadcast message that base station 100 or relay station 200 are broadcasted by PBCH by each CC.This broadcast message comprises the information etc. of the bandwidth that the CC sending this broadcast message is shown.The broadcast message extracted is outputted to terminal control portion 319 by broadcast message extraction unit 315.

The expansion broadcast message that expansion broadcast message extraction unit 316 pairs of base stations 100 or relay station 200 are broadcasted by E-PBCH is extracted.E-PBCH is at least arranged in 1 CC.This expansion broadcast message comprises the corresponding information illustrated between CC#1 ~ #5 and the kind of travelling carriage.The expansion broadcast message extracted is outputted to Synchronization Control portion 318, terminal control portion 319, quality determination portion 321, received power determination part 323 and community selection portion 324 by expansion broadcast message extraction unit 316.

Synchronizing signal that synchronizing signal extraction unit 317 utilizes P-SCH and S-SCH to send by each CC to base station 100 or relay station 200 (master sync signal and from synchronizing signal) is extracted.Then, synchronizing signal is outputted to Synchronization Control portion 318 by synchronizing signal extraction unit 317.

The timing of the radio frames in 10ms cycle, based on the synchronizing signal extracted by synchronizing signal extraction unit 317, detects in Synchronization Control portion 318.In addition, the timing of the time slot in 0.5ms cycle is detected.And, the timing of the radio frames detected and time slot is informed to wireless receiving section 312, demodulating and decoding portion 313, RS extraction unit 320, coded modulation portion 328 and wireless transmission part 329, and feeds back to synchronizing signal extraction unit 317.In addition, Synchronization Control portion 318 determines the P-SCH sequence that base station 100 or relay station 200 use and S-SCH sequence, determines community ID according to both combinations.Then, the community ID determined is informed to community selection portion 324.

Terminal control portion 319 carries out reference to the expansion broadcast message extracted by expansion broadcast message extraction unit 316, judges the CC that LTE-A travelling carriage can use.In addition, reference is carried out to the broadcast message extracted by broadcast message extraction unit 315, control the access to base station 100 or relay station 200.In addition, reference is carried out to the control information extracted by control information extraction unit 314, judge the Radio Resource being assigned to travelling carriage 300, and, judge the modulation coding mode applied.And the action of 319 pairs, terminal control portion wireless receiving section 312, demodulating and decoding portion 313, coded modulation portion 328 and wireless transmission part 329 controls.

RS extraction unit 320, based on the timing of the radio frames detected by Synchronization Control portion 318 and/or time slot, extracts the contrast signal that base station 100 or relay station 200 send.Then, the contrast signal extracted is outputted to quality determination portion 321 and received power determination part 323.

Quality determination portion 321 uses the contrast signal extracted by RS extraction unit 320, measures by the quality of reception expanding the CC shown in broadcast message, LTE-A travelling carriage can use.The quality of reception of the non-serviceable CC of LTE-A travelling carriage can not measure.Then, measurement result is informed to quality information generating unit 322 by quality determination portion 321.In addition, measurement result is fed back to RS extraction unit 320 by quality determination portion 321.Such as, SINR (Signal to Interference and Noise Ratio: Signal to Interference plus Noise Ratio) can be used as the index that the quality of reception is shown.

Quality information generating unit 322 generates control information (measuring report), and this control information illustrates the quality of reception determined by this quality determination portion 321.Such as, use and represent that the CQI (Channel QualityIndication: channel quality indicate) of the quality of reception reports as measuring using centrifugal pump.

Received power determination part 323 uses the contrast signal extracted by RS extraction unit 320 to measure CC#1 ~ #5 received power separately (received electric field strength).When measuring, the expansion broadcast message by being extracted by expansion broadcast message extraction unit 316, when determining the CC that LTE-A travelling carriage can use, also can not measure the received power of the non-serviceable CC of LTE-A travelling carriage.Then, measurement result is informed to community selection portion 324 by received power determination part 323.

Community selection portion 324, based on the community ID of the peripheral cell determined by Synchronization Control portion 318 and the received power that determined by received power determination part 323, comes the community that optional m igration platform 300 connects.Preferably, the community selecting received power maximum.In addition, based on the received power of the expansion broadcast message extracted by expansion broadcast message extraction unit 316 and each CC, the CC for Stochastic accessing is selected.Preferably, in the CC that can connect, select received power maximum.Then, connection destination community and use CC are informed to RA control part 326 by community selection portion 324.

RA control signal extraction unit 325 is extracted the control signal that the base station 100 when Stochastic accessing or relay station 200 are sent by PDSCH.This control signal comprises accidental access response signal and/or contention resolved signal.Then, the control signal extracted is outputted to RA control part 326 by RA control signal extraction unit 325.

When being notified of the CC of connection destination community and use by community selection portion 324, RA control part 326 uses the CC notified, instruction RA control signal generating unit 327 sends Stochastic accessing preamble, and instruction RA control signal extraction unit 325 extracts control over answer signal.When being extracted accidental access response signal by RA control signal extraction unit 325, RA control part 326 indicates RA control signal generating unit 327 to send scheduled transmission signal.

RA control signal generating unit 327, according to the instruction from RA control part 326, generates the Stochastic accessing preamble sent by PRACH.In addition, RA control signal generating unit 327, according to the instruction from RA control part 326, generates the scheduled transmission signal sent by PUSCH.

Coded modulation portion 328 carries out error correction coding and modulation to the user data being sent to base station 100 or relay station 200, the mensuration report generated by quality information generating unit 322 and the control signal that generated by RA control signal generating unit 327, further, the UL Radio Resource distributing to travelling carriage 300 is mapped to.The modulation coding mode that coding and modulation use regulation or the modulation coding mode indicated by terminal control portion 319.Then, wireless transmission part 329 is outputted to using as the baseband signal sending signal.

Wireless signal process is carried out to the transmission signal obtained from coded modulation portion 328 in wireless transmission part 329, carries out the conversion (raising frequency) from the baseband signal of low frequency to the wireless signal of high frequency.Wireless transmission part 329 possesses such as D/A converter, frequency converter, band pass filter, power amplifier etc., to carry out wireless signal process.The frequency band of sending object is indicated by terminal control portion 319.

Figure 20 is the sequence chart of the 1st connection example illustrated from travelling carriage to base station.This sequence illustrates the situation that the travelling carriage 300 as LTE-A travelling carriage is connected with base station 100.The situation that travelling carriage 300 and relay station 200 connect also is same sequence.

(step S11) base station 100 sends synchronizing signal by CC#1 ~ #5 P-SCH and S-SCH separately.When the ID using community ID as CC#1 ~ #5, each CC sends different synchronizing signals.In addition, when base station 100 manages multiple community, synchronizing signal is sent by each community.Similarly, relay station 200 also sends synchronizing signal.

The synchronizing signal that (step S12) travelling carriage 300 sends based on base station 100, according to the timing of each cell detection radio frames, what obtain with base station 100 is synchronous.When the timing of the radio frames of CC#1 ~ #5 is consistent, timing can not be carried out whole CC and detect.Similarly, what travelling carriage 300 obtained with relay station 200 is synchronous.

(step S13) base station 100 sends the contrast signal as pilot signal respectively by CC#1 ~ #5.The contrast signal sent by CC#1 ~ #5 can be all identical signal.Similarly, relay station 200 also sends contrast signal.

The contrast signal that (step S14) travelling carriage 300 sends based on base station 100, according to the received power of each cell measurement from base station 100.Received power can be measured for any 1 CC, also can measure received power for multiple CC.The former when, the frequency band of determination object can be pre-determined.When the latter, can be the received power from base station 100 by the maximum of the received power of multiple CC or mean value definition.Similarly, travelling carriage 300 measures the received power from relay station 200.

(step S15) travelling carriage 300 based on the received power measured in step S14, optional m igration platform 300 connect community.Preferably, travelling carriage 300 community of selecting received power maximum.Herein, the community of the subordinate selecting base station 100 is set to.

(step S16) base station 100 sends (broadcast) broadcast message by CC#1 ~ #5 PBCH separately.In addition, (broadcast) expansion broadcast message is sent by the E-PBCH arranged at least 1 of CC#1 ~ #5.

(step S17) travelling carriage 300 sends the expansion broadcast message of (broadcast) based on base station 100, confirms the CC that LTE-A travelling carriage can connect in CC#1 ~ #5.

The CC for Stochastic accessing selected by (step S18) travelling carriage 300 from the operable CC of LTE-A travelling carriage confirmed among step S17.When there is the candidate of multiple CC, can select any 1, also optionally connected receipts are prominent.

In addition, in the flow process example of Figure 20, the CC of choice for use after have selected the community of connection, but also can select community and CC simultaneously.Such as, the scope of community can not be reduced, and received powers are measured to the whole CC of the peripheral cell detected, from these CC, select LTE-A travelling carriage to connect and the larger CC of received power.In addition, also before selection community, can confirm to measure received power to those CC by the CC that LTE-A travelling carriage can connect for each peripheral cell, select the CC that received power is larger.

(step S19) travelling carriage 300 to comprise in the broadcast message corresponding with the CC selected in step S18, confirm for the information (such as, the information of bandwidth is shown) be connected with this CC.Then, by the PRACH arranged the UL radio frames of the CC selected, Stochastic accessing preamble is sent to base station 100.

(step S20) is the CC that LTE-A travelling carriage can connect at the CC that have received Stochastic accessing preamble, and when there is the free time of the Radio Resource of compatible travelling carriage 300, base station 100 allows the connection of travelling carriage 300.When allow for connection, base station 100 is sent the accidental access response representing and allow to connect by the PDSCH arranged the DL radio frames of the CC receiving Stochastic accessing preamble.Now, base station 100 will be used for the UL allocation of radio resources of step S21 to travelling carriage 300.

(step S21) travelling carriage 300 can normally communicate to be confirmed whether, by the UL Radio Resource (PUSCH) distributed in step S20, the message of regulation and scheduled transmission is sent to base station 100.

(step S22) base station 100 is confirmed whether normally to have received scheduled transmission.Then, as response message, by illustrate receive could contention resolved be sent to travelling carriage 300 by PDSCH.

Thus, the travelling carriage 300 as LTE-A travelling carriage receives and with reference to expansion broadcast message, thereby, it is possible to before Stochastic accessing, confirms the CC that LTE-A travelling carriage can use.Thus, can not attempt being connected with the non-serviceable CC of LTE-A travelling carriage, useless random access procedure can be suppressed.In addition, by confirming the CC that LTE-A travelling carriage can use in advance, the scope of the CC that will measure received power can be reduced.Thus, the load of the process of travelling carriage 300 is alleviated.

On the other hand, the travelling carriage 400 as LTE travelling carriage can not with reference to expansion broadcast message.Therefore, even if when base station 100 or relay station 200 couples of non-serviceable CC of LTE travelling carriage limit, also cannot confirm before Stochastic accessing which CC is the CC that LTE travelling carriage can use.Therefore, Stochastic accessing may be failed.

Figure 21 is the sequence chart of the 2nd connection example illustrated from travelling carriage to base station.This sequence shows the situation that the travelling carriage 400 as LTE travelling carriage is connected with base station 100.The situation that travelling carriage 400 and relay station 200 connect is same sequence.

(step S31) base station 100 sends synchronizing signal by CC#1 ~ #5 P-SCH and S-SCH separately.When base station 100 manages multiple community, send synchronizing signal according to each community.Similarly, relay station 200 also sends synchronizing signal.

The synchronizing signal that (step S32) travelling carriage 400 sends based on base station 100, according to the timing of each cell detection radio frames, what obtain with base station 100 is synchronous.When the ID using community ID as CC, CC#1 ~ #5 (imaginary) is identified as mutually different community by travelling carriage 400 sometimes.Similarly, what travelling carriage 400 obtained with relay station 200 is synchronous.

(step S33) base station 100 sends the contrast signal as pilot signal respectively by CC#1 ~ #5.Similarly, relay station 200 also sends contrast signal.

The contrast signal that (step S34) travelling carriage 400 sends based on base station 100, according to each community and each CC, measures the received power from base station 100.Similarly, travelling carriage 300 measures the received power from relay station 200.

(step S35) travelling carriage 400 based on the received power determined in step S34, optional m igration platform 400 connect community.Preferably, travelling carriage 400 community of selecting received power maximum.Herein, the community of base station 100 subordinate is selected.

(step S36) base station 100 sends (broadcast) broadcast message by CC#1 ~ #5 PBCH separately.

The CC for Stochastic accessing selected by (step S37) travelling carriage 400 from the CC#1 ~ #5 of the community selected in step s 35.In CC#1 ~ #5, arbitrary 1 can be selected, received power also can be selected maximum.In addition, when CC#1 ~ #5 (imaginary) is identified as mutually different community by travelling carriage 400, also can consider the received power based on each CC, carry out the selection of community and the selection of CC simultaneously.

(step S38) travelling carriage 400 to comprise in the broadcast message corresponding with the CC selected in step S37, confirm for the information (such as, representing the information of bandwidth) be connected with this CC.Then, by the PRACH arranged the UL radio frames of the CC selected, Stochastic accessing preamble is sent to base station 100.But herein, the CC being set to selection is the CC that LTE travelling carriage can not connect.

(step S39) when the CC that have received Stochastic accessing preamble be LTE travelling carriage can not connect CC, the connection of travelling carriage 400 is refused in base station 100.When have rejected connection, base station 100, by the PDSCH arranged the DL radio frames of the CC receiving Stochastic accessing preamble, sends the accidental access response representing that refusal connects.In addition, base station 100 is not replied Stochastic accessing preamble.

(step S40) travelling carriage 400 receives the accidental access response representing that refusal connects, or, if not response within the stipulated time from transmission Stochastic accessing preamble, be then judged as random access failure.Then, other CC of the community selected in step s 35 selected by travelling carriage 400.

(step S41) travelling carriage 400 to comprise in the broadcast message corresponding with the CC selected in step s 40, confirm for the information be connected with this CC.Then, by the PRACH arranged the UL radio frames of the CC selected, Stochastic accessing preamble is sent to base station 100.Herein, the CC being set to selection is the CC that LTE travelling carriage can connect.

(step S42) is the CC that LTE travelling carriage can connect at the CC receiving Stochastic accessing preamble, and when there is the free time of the Radio Resource of compatible travelling carriage 400, base station 100 allows the connection of travelling carriage 400.When allow for connection, base station 100, by the PDSCH arranged the DL radio frames of the CC receiving Stochastic accessing preamble, sends the accidental access response representing and allow to connect.Now, base station 100 will be used for the UL allocation of radio resources of step S43 to travelling carriage 400.

(step S43) travelling carriage 400 can normally communicate to be confirmed whether, by the UL Radio Resource (PUSCH) distributed in step S42, scheduled transmission is sent to base station 100.

(step S44) base station 100 is confirmed whether normally to have received scheduled transmission.Then, as response message, by represent receive could contention resolved be sent to travelling carriage 400 by PDSCH.

Thus, the travelling carriage 400 as LTE travelling carriage with reference to expansion broadcast message, therefore, can not can not confirm the CC that LTE travelling carriage can use before Stochastic accessing.Thus, Stochastic accessing may be failed.In addition, due to the CC that LTE travelling carriage can use can not be confirmed, the scope of the CC that will measure received power can not therefore be reduced in advance.

Then, the relation between CC#1 ~ #5 and E-PBCH is described.

Figure 22 is the figure of the 1st sending/receiving example that expansion broadcast message is shown.In the example of Figure 22, base station 100 or relay station 200 control, to make LTE travelling carriage use CC#1 ~ #3, make LTE-A travelling carriage use CC#4, #5.

In addition, base station 100 or relay station 200 arrange PBCH and E-PBCH to whole CC#1 ~ #5.In the PBCH of each CC, send the broadcast message comprised for the information be connected with this CC.The broadcast message sent by PBCH is sometimes different because of the difference of CC.In each E-PBCH, send the expansion broadcast message comprising the information of the relation illustrated between CC#1 ~ #5 and the kind of travelling carriage.The expansion broadcast message sent by E-PBCH can be identical in whole CC.

In this situation, the travelling carriage 300 as LTE-A travelling carriage receives the expansion broadcast message sent by E-PBCH arbitrary in CC#1 ~ #5.Expansion broadcast message known CC#4, #5 according to receiving are the CC that LTE-A travelling carriage can use.Then, the side in selection CC#4, #5 is as the CC used in Stochastic accessing.Can based on the measurement result of received power judge to select in CC#4, #5 which.In the example of Figure 22, travelling carriage 300 with reference to the expansion broadcast message broadcasted by CC#4, and selects CC#4.

When selecting CC#4 as the CC used in Stochastic accessing, the broadcast message that travelling carriage 300 sends with reference to the PBCH by CC#4, sends Stochastic accessing preamble by the PRACH arranged the UL radio frames of CC#4.Thus, the process of base station 100 or the Stochastic accessing between relay station 200 and travelling carriage 300 is started.Thus, in the example of Figure 22, E-PBCH is provided with to whole CC, as long as therefore with reference to arbitrary 1 CC, the CC that LTE-A travelling carriage can use just can be known.

In addition, travelling carriage 300 is LTE-A travelling carriages, therefore CC#4, #5 can also be integrated and use in data sending/receiving.Even if in this case, when Stochastic accessing, 1 CC (CC#4) coming also first is used to carry out process.Then, connect in base station 100 or between relay station 200 and travelling carriage 300, on the basis of the control based on base station 100 or relay station 200, other the CC (CC#5) that LTE-A travelling carriage can use can also be used.

In addition, base station 100 or relay station 200 can dynamically change according to signal intelligence the CC that LTE-A travelling carriage can use in CC#1 ~ #5.In this situation, base station 100 or relay station 200 dynamically change the content of the expansion broadcast message sent by E-PBCH.

Figure 23 is the figure of the 2nd sending/receiving example that expansion broadcast message is shown.In the example of Figure 23, base station 100 or relay station 200 arrange PBCH in whole CC#1 ~ #5, only can use in CC#4, #5 at LTE-A travelling carriage and arrange E-PBCH.In the PBCH of each CC, send the broadcast message comprised for the information be connected with this CC.In the E-PBCH of CC#4, #5, send the expansion broadcast message comprising the information of the relation illustrated between CC#1 ~ #5 and the kind of travelling carriage.

In this situation, the travelling carriage 300 as LTE-A travelling carriage receives the expansion broadcast message sent by the E-PBCH of the side in CC#4, #5.Expansion broadcast message known CC#4, #5 according to receiving are the CC that LTE-A travelling carriage can use.Then, the side in selection CC#4, #5 is as the CC used in Stochastic accessing.Thus, in the example of Figure 23, in the CC that only can use at LTE-A travelling carriage, E-PBCH is set, therefore, it is possible to saving Radio Resource.

In addition, arrange E-PBCH as long as pre-determine in the CC that only can use at LTE-A travelling carriage, travelling carriage 300 just can will detect that the CC of E-PBCH is judged as the CC that LTE-A travelling carriage can use.In this situation, in the expansion broadcast message that the E-PBCH by CC#4, #5 sends, the information about other CC can not be comprised.

In addition, base station 100 or relay station 200 also only can arrange E-PBCH to the side in CC#4, #5.That is, as long as arrange E-PBCH at least one in the CC that can use at LTE-A travelling carriage.In addition, also the CC being provided with E-PBCH main CC or main band be can be called, expansion CC or extending bandwidth other CC are called.

Figure 24 is the figure of the 3rd sending/receiving example that expansion broadcast message is shown.In the example of Figure 24, base station 100 or relay station 200 arrange PBCH in whole CC#1 ~ #5, and the CC#3 being only arranged in the center of CC#1 ~ #5 on the frequency axis arranges E-PBCH.In the PBCH of each CC, send the broadcast message comprised for the information be connected with this CC.In the E-PBCH of CC#3, send the expansion broadcast message comprising the information of the relation illustrated between CC#1 ~ #5 and the kind of travelling carriage.

In this situation, the travelling carriage 300 as LTE-A travelling carriage receives the expansion broadcast message sent by the E-PBCH of CC#3.Expansion broadcast message known CC#4, #5 according to receiving are the CC that LTE-A travelling carriage can use.Then, the side in selection CC#4, #5 is as the CC used in Stochastic accessing.Thus, in the example of Figure 24, only E-PBCH is set in the CC of regulation, therefore, it is possible to save Radio Resource.In addition, travelling carriage 300, with reference to the CC (such as, being positioned at the CC at CC#1 ~ #5 center on the frequency axis) of regulation, can make the process simplicity of travelling carriage 300, can lower processing load.

According to the mobile communication system of this 2nd execution mode, base station 100 and relay station 200 can limit the CC that can connect according to the kind of travelling carriage.Therefore, the scheduling under LTE-A travelling carriage and the simultaneous environment of LTE travelling carriage becomes easy.And, be easy to wide band allocation of radio resources to LTE-A travelling carriage.

In addition, LTE-A travelling carriage, by referring to expansion broadcast message, before connecting with base station 100 or relay station 200, can know operable CC.Thus, even if when limiting the CC that can connect in the kind because of travelling carriage, also successfully connection handling can be carried out.In addition, LTE-A travelling carriage can reduce the scope of the CC measuring received power when selecting community or selection CC, alleviate processing load.In addition, the processing time of when selecting community (when comprising switching) can be shortened.

Such as, suppose that LTE-A travelling carriage detects 3 peripheral cells, in each community, 2 in 5 CC are assigned to LTE-A travelling carriage.In this case, if do not select with reference to expansion broadcast message the CC that received power is larger as far as possible, then become and measure received power for 5 × 3=15 CC.On the other hand, if eliminate the non-serviceable CC of LTE-A travelling carriage with reference to expansion broadcast message, as long as then measure received power for 2 × 3=6 CC.That is, the process of LTE-A travelling carriage is relieved to about 2/5ths.

Certainly, expansion broadcast channel, except the information of the corresponding relation illustrated between multiple CC and the kind of travelling carriage, can also be used for sending to LTE-A travelling carriage the various information that will broadcast.In addition, also new broadcast channel undefined in LTE can be called the title beyond " expansion broadcast channel ".Such as, the side in broadcast channel in the past and expansion broadcast channel can be called the 1st broadcast channel, the opposing party be called the 2nd broadcast channel.

More than illustrate only principle of the present invention.To those skilled in the art, various distortion and change can be carried out, the invention is not restricted to the above-mentioned precision architecture that illustrates and illustrate and application examples, corresponding whole variation and equivalent all fall in the scope of the present invention by claims and equivalents thereof.

Label declaration

1: radio communication device

1a: the 1 generating unit

1b: the 2 generating unit

1c: sending part

2,3: mobile communications device

2a: acceptance division

2b: control part

4a: the 1 broadcast channel

4b: the 2 broadcast channel

Claims (4)

1. a mobile communication system, is characterized in that, this mobile communication system has:

Radio communication device, it possesses: the 1st generating unit, and it is created on the 1st broadcast message used publicly in the process of whole 1st kind of travelling carriages and the 2nd kind of travelling carriage; 2nd generating unit, it generates the control information relevant with the frequency that can use publicly in whole described 2nd kind of travelling carriages, as the 2nd broadcast message; And sending part, it utilizes the 1st Physical Broadcast Channel to send described 1st broadcast message and utilizes the 2nd Physical Broadcast Channel to send described 2nd broadcast message; And

As the mobile communications device of described 2nd kind of travelling carriage, it possesses: acceptance division, and it receives described 1st broadcast message utilizing described 1st Physical Broadcast Channel to send and described 2nd broadcast message utilizing described 2nd Physical Broadcast Channel to send; And control part, it at least uses described 2nd broadcast message received, the communication between the described radio communication device of the frequency that can use described in controlling and make use of.

2. a radio communication device, is characterized in that, this radio communication device has:

1st generating unit, it is created on the 1st broadcast message used publicly in the process of whole 1st kind of travelling carriages and the 2nd kind of travelling carriage;

2nd generating unit, it generates the control information relevant with the frequency that can use publicly in whole described 2nd kind of travelling carriages, as the 2nd broadcast message; And

Sending part, it utilizes the 1st Physical Broadcast Channel to send described 1st broadcast message and utilizes the 2nd Physical Broadcast Channel to send described 2nd broadcast message,

At least according to described 2nd broadcast message, control the communication between described 2nd kind of travelling carriage.

3. a mobile communications device, is characterized in that, this mobile communications device has:

Acceptance division, it utilizes the 1st Physical Broadcast Channel to be received in from the radio communication device that can carry out radio communication with the 1st kind of travelling carriage and the 2nd kind of travelling carriage the 1st broadcast message used publicly the process of all described 1st kind of travelling carriage and described 2nd kind of travelling carriage, the 2nd Physical Broadcast Channel is utilized to receive the control information relevant with the frequency that can use publicly whole described 2nd kind of travelling carriages, as the 2nd broadcast message from described radio communication device; And

Control part, it at least uses described 2nd broadcast message received, the communication between the described radio communication device of the frequency that can use described in controlling and make use of,

This mobile communications device is as described 2nd kind of operating mobile station.

4. comprise a wireless communications method for the mobile communication system of radio communication device and mobile communications device, the feature of this wireless communications method is,

Described radio communication device is created on the 1st broadcast message used publicly in the process of whole 1st kind of travelling carriages and the 2nd kind of travelling carriage, generate the control information relevant with the frequency that can use publicly in whole described 2nd kind of travelling carriages, as the 2nd broadcast message

Described radio communication device utilizes the 1st Physical Broadcast Channel to send described 1st broadcast message and utilizes the 2nd Physical Broadcast Channel to send described 2nd broadcast message,

Described mobile communications device as described 2nd kind of travelling carriage receives described 1st broadcast message utilizing described 1st Physical Broadcast Channel to send and described 2nd broadcast message utilizing described 2nd Physical Broadcast Channel to send,

Described mobile communications device at least uses described 2nd broadcast message received, the communication between the described radio communication device of the frequency that can use described in controlling and make use of.