CN107040282A

CN107040282A - Repeat the method and its device of transmitting/receiving system information

Info

Publication number: CN107040282A
Application number: CN201610947131.XA
Authority: CN
Inventors: 姜承显; 崔宇辰
Original assignee: KT Corp
Current assignee: KT Corp
Priority date: 2015-11-04
Filing date: 2016-10-26
Publication date: 2017-08-11
Anticipated expiration: 2036-10-26
Also published as: KR101884978B1; KR20170053101A; CN107040282B

Abstract

The invention discloses the method and apparatus for sending system information for MTC UE, the method and apparatus for the frequency hopping for MTC UE execution system information are more particularly disclosed.BS based on physical district ID and depending on system bandwidth arrowband number determine first send system information arrowband index, and the index based on the first arrowband, depending on system bandwidth arrowband number and for frequency hopping arrowband number configure frequency-hopping mode.In accordance with the invention it is possible to MTC UE be sent or be repeatedly sent to by system information, while interference will not be produced by adjacent BS.

Description

Repeat the method and its device of transmitting/receiving system information

The cross reference of related application

This application claims the korean patent application the 10-2015-0154785th submitted on November 4th, 2015,2015 years 11 The korean patent application that the korean patent application 10-2015-0157314 that submits for 10th of the moon, on November 12nd, 2015 submit the Korean patent application 10-2015-01650705 that 10-2015-0159232, on November 16th, 2015 submit, in November, 2015 The korean patent application that the korean patent application submitted for 18th the 10-2015-0161483rd and on March 8th, 2016 submit 10-2016-0027589 priority, and they are incorporated herein for all purposes and by quoting herein, as herein In fully illustrate.

Technical field

The present invention relates to the method and apparatus for sending system information for MTC terminal.More particularly it relates to Method and apparatus for configuring the transfer resource of system information for MTC terminal and performing frequency hopping.

Background technology

Machine type communication (Machine Type Communication, MTC) is defined as the state being not involved in people Under the communication that occurs between equipment and object.From the point of view of 3GPP, " machine " refers to that control or people need not be guided dry Pre- entity, and " MTC " is defined to include a type of the data communication of one or more machines.

Although equipped with mobile communication module intelligence instrument or automatic vending machine as the typical case of machine Be mentioned, but from it is nearest release smart mobile phone since have MTC functions portable user (User Equipment, UE it is considered as) a type of machine, the smart mobile phone automatically accesses network and led to according to the position or situation of user Believe any control or intervention without user.

In order to support the MTC UE of the coverage with extension, should repeatedly it send over multiple subframes in the time domain System information (System Information, SI).When for the UE of the coverage with extension, in each transmission cycle When repeatedly sending SI by most of descending sub frames, for Dedicated Traffic Channel (Dedicated Traffic CHannel, DTCH) Physical Downlink Shared Channel (Physical Downlink Shared CHannel, PDSCH) transfer resource of transmission becomes Obtain relative lack.In order to solve the above problems, it is proposed that intermittence repeats sending method, with it, only in specific sub-frame Or only repeat to send SI with specific transmission cycle.

Accordingly, it would be desirable to designed for SI is repeatedly sent into MTC UE and avoided from adjacent base station (Base Station, BS) transmitted by SI interference frequency-hopping mode.

The content of the invention

Made according to the demand the present invention is provided to the biography of Transmission system information is provided for for MTC UE Defeated resource and the method and apparatus that system information is sent and received by using the transfer resource.

In addition, the present invention is provided is configured to the frequency-hopping mode of Transmission system information and for MTC UE weights for MTC UE Method and apparatus of transmitting/receiving system information again.

According to an aspect of the present invention system information is repeatedly sent there is provided a kind of base station (Base Station, BS) Method.Methods described includes：Determine to be used to configure to jump based on physical district ID and depending on the number of the arrowband of system bandwidth The index of first arrowband of frequency pattern；Number and use based on the physical district ID, the arrowband depending on system bandwidth Number in the arrowband of frequency hopping determines the index of the remaining arrowband for configuring the frequency-hopping mode；And by with for The corresponding arrowband of index for putting the arrowband of the frequency-hopping mode repeatedly sends the system information.

Repeatedly received there is provided a kind of user equipment (User Equipment, UE) according to another aspect of the present invention The method of system information.Methods described includes：Pass through the number with the arrowband based on physical district ID and depending on system bandwidth The arrowband for the index that mesh is determined receives the system information first；By with based on the physical district ID, described depend on The number of the arrowband of system bandwidth and for frequency hopping arrowband number determine index narrow-band reception described in system information.

There is provided a kind of base station BS for being used to repeatedly send system information according to another aspect of the invention.The BS Including：Controller, the controller is used to determine to be used for based on physical district ID and depending on the number of the arrowband of system bandwidth The index of the first arrowband of frequency-hopping mode is configured, and based on the physical district ID, the arrowband depending on system bandwidth Number and number for the arrowband of frequency hopping determine the index of the remaining arrowband of the configuration frequency-hopping mode；And emitter, The emitter is used to send system information by arrowband corresponding with the index of the arrowband for configuring the frequency-hopping mode.

It is used for the user equipment (UE) of repeatedly reception system information there is provided a kind of according to another aspect of the invention.Institute State UE be used for pass through with based on physical district ID and depending on system bandwidth arrowband number determine index arrowband head First reception system information, and by with the number based on the physical district ID, the arrowband depending on system bandwidth System information described in the narrow-band reception of the index determined with the number of the arrowband for frequency hopping.

According to the present invention it is possible to be provided for the transfer resource of Transmission system information for MTC UE and correspondence can be used Transfer resource transmitting/receiving system information.

Further it is provided that for repeatedly sending system information to MTC UE frequency-hopping method, thus adjacent BS can System information is repeatedly sent by using different resources with respect to the subframe of frequency hopping repetition transmission.

Brief description of the drawings

According to the following detailed description carried out with reference to accompanying drawing, above-mentioned and other objects, features and advantages of the invention It will be apparent, in the accompanying drawings：

Fig. 1 shows the example of UE initial cell access procedure；

Fig. 2 shows MIB configuration；

Fig. 3 shows the example of PDCCH coding methods；

Fig. 4 shows to send PBCH resource；

Fig. 5 is the figure for describing domain scheduling during system information；

Fig. 6 is the figure for describing the change of system information；

Fig. 7 be show according to the embodiment of the present invention, BS repeatedly send system information method flow chart；

Fig. 8 be show according to the embodiment of the present invention, the flow charts of UE repeatedly methods of reception system information；

Fig. 9 shows the configuration of the BS according to another embodiment of the present invention；And

Figure 10 shows the configuration of the UE according to another embodiment of the invention.

Embodiment

Hereafter, embodiments of the present invention be will be described in detail with reference to the accompanying drawings.In the group being added to reference in each figure During into part, identical part will be specified (if possible) by identical reference, although the identical composition portion Divide and show in various figures.In addition, in the description below of the present invention, when it is determined that the known function being incorporated herein and configuration Detailed description when may make the subject of the present invention not know quite, the detailed description will be omitted.

In this manual, MTC UE can refer to the UE for supporting inexpensive (or low-complexity), the UE for supporting coverage enhancement Deng.Alternatively, in this manual, MTC UE, which can refer to, is defined for supporting inexpensive (low-complexity) and/or covers Cover the enhanced other UE of predetermined class.

In other words, in this manual, MTC UE can refer to the 3GPP Release (issue) -13 that newly define it is low into UE classifications/the type of this (or low-complexity), the UE classifications/type performs the operation relevant with MTC based on LTE.Alternatively, In this manual, MTC UE can refer to support with existing LTE cover compared to it is enhanced covering or support low-power consumption, UE classifications/type defined in 3GPP Release-12 or version before, or MTC UE can refer to the Release- newly defined UE classifications/type of 13 low cost (or low-complexity).

Widely it is arranged to provide various communication services, such as voice, packet according to the wireless communication system of the present invention Data etc..

Fig. 1 shows the example of UE initial cell access procedure.

Reference picture 1, wireless communication system includes user equipment 10 and base station 20, and the base station 20 performs up logical with UE 10 Letter is (for example, Physical Uplink Shared Channel (Physical Uplink Shared CHannel, PUSCH), physical uplink control letter Road (Physical Uplink Control CHannel, PUCCH), Physical Random Access Channel (Physical Random Access CHannel, PRACH) etc.) and downlink communication (for example, Physical Downlink Shared Channel (Physical Downlink Shared CHannel, PDSCH), Physical Downlink Control Channel (Physical Downlink Control CHannel, PDCCH), enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control CHannel, EPDCCH), physics HARQ (hybrid automatic repeat-request) information channel (Physical HARQ Information CHannel, PHICH), physical control format information channel (Physical Control Format Information CHannel, PCFICH), Physical Broadcast Channel (Physical Broadcast CHannel, PBCH) etc.).

Throughout the specification, UE 10 is the UE wide in range concept for indicating to utilize in wireless communications, and should be explained To be included in all UE in WCDMA, LTE, HSPA etc. and movement station in gsm (Mobile station, MS), user The concept of terminal (User Terminal, UT), subscriber station (Subscriber Station, SS), wireless device etc..

BS 20 or cell can generally refer to the station communicated with UE 10, and can be referred to as another term, such as Node B (3G Mobile base station), eNodeB (evolved Node B), sector, website, base station transceiver system (Base Transceiver System, BTS), access point, via node, remote radio-frequency heads (Remote Radio Head, RRH), radio unit (Radio Unit, RU), cell etc..

In addition, BS 20 should be interpreted to indicate some by base station controller (the Base Station in CDMA Controller, BSC), the width of the region that the eNB in Node B, LTE in WCDMA or sector (website) are covered or function General implication, it includes all various overlay areas, and such as big cell, macrocell, Microcell, picocell, millimicro are small The communication range in area, RRH and via node.

Above-mentioned various cells are respectively provided with the BS for controlling corresponding cell, therefore, and BS can be explained in the following two kinds mode. I) BS, which can refer to, provides the big cell related to wireless zone, macrocell, Microcell, picocell, Femto cell or slight The equipment in area in itself, or ii) wireless zone is in itself.In i), the predetermined wireless zone of offer is set to be controlled or be led to by same entity Cross interactive and all devices of collaborative configuration wireless zone are referred to as BS.Configuration Type based on wireless zone, eNB, RRH, day Line, RU, low power nodes (Low Power Node, LPN), point, transmission/receiving point, sending point, receiving point etc. can be BS Embodiment.In ii) in, the wireless zone of angular acceptance or transmission signal from UE or adjacent BS can be represented as in itself BS。

Therefore, big cell, macrocell, Microcell, picocell, Femto cell, cell, RRH, antenna, RU, LPN, Point, eNB, transmission/receiving point, sending point and receiving point are commonly known as BS.

In the description, UE and BS is used as two wide in range transmitting-receiving main bodys, with realize the technology that describes in the description and Technical concept, and can not be limited by predetermined term or word.In the description, UE and BS is used as two (up-links Or downlink) wide in range transmitting-receiving main body, to realize the technology and technical concept that describe in the description, and can not be by predetermined Term or word limitation.Here, up-link (UL) refers to transmitting data to BS and BS from UE reception numbers for UE According to scheme, and downlink (DL) refer to for BS transmit data to UE and UE from BS receive data scheme.

Multiple Access scheme applied to wireless communication system is not limited.Various Multiple Access schemes, such as code division can be used Multiple access (Code Division Multiple Access, CDMA), time division multiple acess (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), OFDM (Orthogonal Frequency Division Multiple Access, OFDMA), OFDM-FDMA, OFDM-TDMA, OFDM-CDMA etc..Embodiments of the present invention can apply to evolving to LTE and LTE- via GSM, WCDMA and HSPA Resource allocation in Advanced (evolution version) asynchronous wireless communication field, and can apply to evolve to CDMA, CDMA- Resource allocation in 2000 and UMB sychronous wireless communication field.The present invention should not be construed as limited to or be limited to spy Fixed wireless communication field, and should be interpreted as including can using the present invention technical concept all technical fields.

Uplink and downlink transfer can use the time division duplex (Time being transmitted based on the different time Division Duplex, TDD) scheme or use the FDD (Frequency that is transmitted based on different frequencies Division Duplex, FDD) scheme.

In addition, in such as LTE and LTE-A system, can be by based on single carrier wave or a pair of carrier wave collocating uplinks Link and downlink develop standard.In uplink and downlink, by control channel transmission control information, the control Channel processed such as Physical Downlink Control Channel (Physical Downlink Control CHannel, PDCCH), physical control Under format indicator channel (Physical Control Format Indicator CHannel, PCFICH), enhanced physics Row control channel (Enhanced Physical Downlink Control CHannel, EPDCCH) etc..Up-link is with Line link can also be configured to transmit data by data channel, the data channel such as PDSCH and PUSCH.

Further, it is also possible to transmit control information using enhanced PDCCH or the PDCCH of extension (EPDCCH).

In this manual, cell can refer to the coverage of the signal sent from transmission/receiving point, with from from hair Give/receiving point (sending point or transmission/receiving point) send signal coverage member carrier or transmission/receiving point sheet Body.

The wireless communication system of application implementation mode can be multipoint cooperative transmission system (CoMP system), multi-antenna cooperative Transmission system or coordinating multi-cell communication system, in multipoint cooperative transmission system, two or more transmission/receiving points are each other Cooperate to transmit signal.The CoMP system may include transmission/receiving point and UE more than at least two.

Many transmission/receiving points can be BS or macrocell (hereafter, being referred to as " eNB ") and at least one RRH, this at least one RRH is connected to eNB and controlled in a wired fashion by optical cable or optical fiber, and in macrocell area have large transmission power or Low transmission power.

Hereafter, downlink refers to the communication from many transmission/receiving points to UE or communication path, and up-link refers to It is from UE to the communication of many transmission/receiving points or communication path.In the downlink, emitter can send/receiving point to be multiple A part and receiver can be UE a part.In the uplink, emitter can be a UE part and receiver / the part of receiving point can be sent to be multiple.

Hereafter, situation about being sent and received signal by channels such as PUCCH, PUSCH, PDCCH, EPDCCH, PDSCH Can " sending or receive PUCCH, PUSCH, PDCCH, EPDCCH or PDSCH " describes by statement.

In addition, hereafter, statement " send or receive PDCCH or signal is sent or received by PDCCH " can be used as statement " send or receive EPDCCH or signal is sent or received by EPDCCH " and uses.

That is, Physical Downlink Control Channel used herein can refer to PDCCH or EPDCCH, and can be simultaneously Including PDCCH and EPDCCH.

In addition, for convenience of description, EPDCCH according to the embodiment of the present invention can apply to describe using PDCCH Part and PDCCH according to the embodiment of the present invention can apply to the part that is described using EPDCCH.

In addition, high-level signaling described below includes the RRC signaling that transmission includes the rrc message of RRC parameters.

BS 20 performs downlink transfer to UE.ENB can transmit PDSCH, and the PDSCH is the primary physical for unicast transmission Channel, eNB can transmit PDCCH, and the PDCCH is used to transmit Downlink Control Information, such as receive scheduling needed for PDSCH and Scheduling authorization (grant) information for transmitting uplink data channels (for example, PUSCH).In the following description, by each Signal transmission/reception of channel is represented by the transmission or reception of channel itself.

In addition, from the angle that downlink communication is sent to UE 10, BS 20 is properly termed as sending point (Transmission Point, TP), and from the angle for receiving the uplink communication from UE 10, BS 20 is properly termed as receiving point (Reception Point, RP), or BS 20 is properly termed as a little or sends and receives a little.

MTC is defined as the communication occurred in the state of people is not involved between equipment and object.From 3GPP angle, " machine " refers to the entity that control or people need not be guided to intervene, and " MTC " is defined to include one or more machines One type of data communication.Although equipped with mobile communication module intelligence instrument or automatic vending machine as machine Typical case and be mentioned, but from it is nearest release smart mobile phone since there is the portable terminals of MTC functions to be considered as one The machine of type, the smart mobile phone automatically accesses network and communicated according to the position or situation of user without user's Any control or intervention.

As LTE network extends, mobile communication service provider is expected to minimize radio access terminal (Radio Access Terminal, RAT) quantity, to reduce the maintenance cost of network.However, based on conventional GSM/GPRS networks MTC products have increased, and can MTC of the low cost offer with low data transmission rate.Therefore, mobile communication service provider pin Using LTE network and GSM/GPRS networks are used for MTC to Common data transmission, so that asking for two PRT should be managed by producing Topic, this causes less efficiently service band and reduces the profit of mobile communication service provider.

In order to solve the above problems, it should be replaced by using the cheap of LTE network using the MTC UE of GSM/EGPRS networks MTC UE, therefore discussed in 3GPP RAN WG1 standards meetings for reducing the various requirement of LTE MTC UE prices.This Outside, in standards meetings, write-in can provide the various functions for meeting above-mentioned requirements in file (TR 36.888).

Support cheap LTE MTC UE physical layer standard changes main on being used for of currently discussing in 3 gpp Project may, for example, be such as arrowband support/mono- RF chains/long discontinuous receptions of half-duplex FDD/ (Long DRX (Discontinued Reception)) technology.However, compared to conventional LTE UE, for this for reducing that cost considers A little methods may reduce MTC UE performance.

In addition, 20% MTC UE of support MTC services (such as intelligent measure) are installed in " deep indoor ", environment is (such as Basement) in so that for the transmission of successful execution MTC data, compared to conventional LTE UE coverage, LTE MTC UE's Coverage should be enhanced 15dB.

The link budget of each physical channel is expressed as maximum coupling loss (Maximum Coupling by table 1 below Loss, MCL) value.Because MCL values are minimum in the case of FDD PUSCH, the target MCL values that thus be accordingly used in raising 15dB are 140.7+15=155.7dB.

[table 1]

Physical channel title	PUCCH(1A)	PRACH	PUSCH	PDSCH	PBCH	SCH	PUCCH(1A)
								MCL(FDD)[dB]	147.2	141.7	140.7	145.4	149.0	149.3	146.1
MCL(FDD)[dB]	149.4	146.7	147.4	148.1	149.0	149.3	146.9

Table 2 below shows the improvement for the coverage for meeting the required each physical channel of target MCL values.

[table 2]

Physical channel title	PUCCH(1a)	PRACH	PUSCH	PDSCH	PBCH	SCH	PUCCH(1A)
								Required improvement [dB]	8.5	14.0	15.0	10.3	6.7	6.4	9.6

As described above, in order to improve coverage while LTE MTC UE cost is reduced, believing for each physics Road considers the various methods for sane (Robust) transmission, such as PSD (power spectral density) carry high or low encoding rate and when Domain is repeated.

The MTC UE of low price based on LTE requirement is as follows.

- data transmission rate should at least meet the data transmission rate provided by the MTC UE based on EGPRS, that is to say, that Descending 118.4kbps and up 59.2kbps.

- compared to GSM/EGPRS MTC UE, frequency efficiency should be improved by innovative.

- the coverage provided should not be less than the region provided by GSM/EGPRS MTC UE.

- power consumption should not be greater than GSM/EGPRS MTC UE power consumption.

- traditional LTE UE and LTE MTC UE should be used in identical frequency.

- reuse existing LTE/SAE networks.

- perform optimization in tdd mode and fdd mode.

The LTE MTC UE of-low price should support limited mobility and low-power consumption module.

BS can distribute the resource of such as maximum 6 PRB pairs, and available maximum transmitted in a subframe to MTC UE Block size (Transport Block Size, TBS) is 1000 bits.

Reference picture 1, in UE initial cell access procedure, UE 10 receives master sync signal (Primary Synchronization Signal, PSS) and auxiliary synchronous signal (Secondary Synchronization Signal, SSS), the PSS and SSS are the synchronizing signals sent in step s 102 by BS 20.In fdd, can be in a radio frames Send PSS in the last symbol (#n) of the subframe #0 and subframe #5 of (10ms) the first time slot, and can in subframe #0 and SSS is sent in the previous symbol (#n-1) of the last symbol (#n) of subframe #5 the first time slot., can in LTE TDD To send PSS/SSS at the position different from the position in FDD.

Obtain slot timing and SSS scramblers by obtaining PSS and obtain frame timing and small district's groups ID by obtaining SSS Sequence.

When UE 10 detects PSS and SSS, UE 10 can obtain cell ID and down-going synchronous information and can be by using Cell specific reference signal (Cell-specific Reference Signal, CRS) is based on the information obtained by PSS/SSS Perform additional synchronization and the decoding of existing control channel.

UE 10 receives signal by the PBCH based on CRS in step S104 from BS 20, and extracts in step s 106 The Master Information Block (Master Information Block, MIB) transmitted by PBCH.Referring below to described by Fig. 2, MIB The information of the bandwidth of indicating cell can be included, the information of PHICH configurations is indicated and indicate the information of System Frame Number.UE 10 can To know the resource for distributing to PDCCH based on the information included in MIB.

UE 10 receives signal by the PDCCH based on CRS in step S108 from BS 20, and extracts in step s 110 The Downlink Control Information (Downlink Control Information, DCI) sent by PDCCH.DCI can be for passing Defeated SIB PDSCH control information and it can be transmitted by common search space.In other words, decoding PCFICH and detection How many symbols are assigned to PDCCH.The DCI for SIB1 is decoded from PDCCH.Decoding SIB1 and obtain for other SIB when Domain scheduling information.

UE 10 receives signal by the PDSCH based on DL RS based on DCI in step S112 from BS, and in step S114 The middle another SIB extracted by PDSCH transmission.The DCI for the SIB in addition to SIB1 is decoded from PDCCH.Decoding is other SIB。

Hereafter, in step S116, UE 10 and BS 20 can perform random access procedure, and UE 10 can be empty from RRC Not busy state is changed into RRC connection status.

BS 20 is referred to as MIB by the system information transmitted by PBCH.

Fig. 2 shows MIB configuration.

Reference picture 2, MIB can include " DL- bandwidth (dl-Bandwidth) " field (BW), " PHICH- configures (phich- Config) " field (PHICH), " System Frame Number (systemFrameNumber) " field (SFN) and " standby (spare) " word Section (standby).

" dl-Bandwidth " field can serve to indicate that cell with resource block (Resource Block, RB) be unit Bandwidth.In LTE and lte-a system, cell can include 6 RB, 15 RB, 25 RB, 50 RB, 75 RB, Or 100 RB, and " dl-Bandwidth " field of 3 bits can serve to indicate that the value of one of them.

" phich-Config " field can serve to indicate that PHICH resource, and agreeing for PUSCH is transmitted by PHICH Determine ack/nack (Acknowledgement/Negative Acknowledgement, A/N).“phich-Config” Field can include 3 bits, and 3 bit includes 1 bit for indicating the PHICH duration and 2 bits for indicating PHICH resource. The PHICH duration can indicate to distribute to PHICH OFDM (Orthogonal Frequency Division Multiplex, OFDM) symbol quantity.When the value of PHICH duration is 0, (commonly), PHICH can be located at subframe First OFDM symbol at, and when the value is 1, the first two for the subframe that (extension) PHICH can be located at or three At OFDM symbol.PHICH resource can indicate PHICH resource occupation or indicated value 1/6,1/2,1 or 2.

" systemFrameNumber " field can serve to indicate that System Frame Number (the System Frame of 10 bits Number, SFN).Herein, SFN have from 0 to 1023 value, i.e. with 1024 frame periods repeatedly from 0 to 1023 value.Can be with 8 bits in 10 bit SFN are indicated by " systemFrameNumber " field, it is possible to corresponding to 4 radio frames It is implicit in the PBCH in the cycle of (40ms) decoding to obtain 2 bits.Therefore, " systemFrameNumber " field can include 8 bits of the highest significant position (Most Significant Bit, MSB) in SFN.

In addition, " standby " field of reserved 10 bits.

With total 24 bit configuration MIB.For the PBCH transmission including MIB, cataloged procedure as shown in Figure 1 is performed.

Fig. 3 shows the example of PDCCH coding methods.

Reference picture 3, first by the CRC of MIB (a0, a1 ... and aA-1) 16 bits of generation of 24 bits Code (Cyclic Redundancy Check, CRC).Now, in the CRC of 16 bits of generation, according to the quantity of transmitting antenna And the CRC masks of 16 bits set are scrambled.In step S310, the CRC of 16 bits of scrambling is added in the MIB of 24 bits Generate below and thus the block of information bits (i0, i1 ... iK-1) of 40 bits altogether.

In step s 320 using tail-biting convolutional code (Tail Biting Convolutional Code, TBCC) to 40 ratios Special information bit is encoded.

Mother (mother) code word of TBCC codingsLength be 120 bits.In step S330 Through-rate matching treatment to female code repeat and obtain the code word (e0, e1 ..., eE-1) of 1920 bits.

Fig. 4 shows to send PBCH resource.

Reference picture 4, PBCH can be located at 6 resource blocks at the first subframe of every frame on time shaft and on frequency axis (RB) or at 72 subcarriers.On the code word for 1920 bits being transmitted, passed respectively in the first subframe of corresponding 4 frames Defeated 480 bit.Therefore, as SFN mod 4=0, it is changed by the PBCH MIB transmitted, and using only 0 work song in every frame Frame (SF#0) transmits the MIB.In addition, using only in SF#0 14 OFDM symbols OFDM symbol index i (i=0,1, 2 ..., 13) it is 7,8,9 and 10 4 OFDM symbols to transmit the MIB.

The code word of 480 bits transmitted is made up of the code word that can be decoded.UE can be by combining in four frames The reception value of the code word of transmission decodes the PBCH code words transmitted in respective cycle in cycle.

Therefore, when the channel status between BS and UE is good, the code word transmitted in a frame can be used only Reception value be successfully decoded.Otherwise, just have can for pole during the reception value for the code word only transmitted when combination in most 4 frames It can be successfully decoded.

Except being referred to as system information by the other systems information transmitted by PDSCH by the MIB transmitted by PBCH, BS Block (System Information Block, SIB).According to the type for the information transmitted, SIB has a variety of SIB types, such as Shown in table 3 below.

[table 3]

In the SIB of 16 types, SIB1 uses the set time domain scheduling similar with MIB.First, SIB1 biography The defeated cycle is 8 frames (80ms) and performs transmission by 4 frames corresponding to SFN mod 2=0.In transmission SIB1 frame, only SF# 5, which are used for SIB1, transmits.In addition, the DCI for the PDCCH that UE is transmitted by decoding on SF#5 obtains the SIB1 on being transmitted Frequency domain dispatching information.

Then, the dispatching method of other SIB (SIB2 to SIB16) by description in addition to SIB1.By SIB1 by its His SIB time domain schedule information is sent to UE.

When obtaining SI message, UE 10 determines the starting point (beginning of SI message) of the SI windows for related SI message. That is, in the schedule information list by system information block type 1 (SystemInformationBlockType1) (schedulingInfoList) in the list of the SI message of configuration, it is determined that number n corresponding to the exponent number of entry and relative to Related SI message determines integer (integer value) x=(n -1) * w.Now, w represents window length (si- window length (si- WindowLength))。

SI windows start from the subframe #a of SFN mod T=FLOOR (x/10) radio frames.Now, a=x mod10 and T is The cycle ((si- cycles) si-Periodicity) of related SI message.

When dispatching SI blocks only before the subframe #5 in the frame in SFN mod 2=0,1ms SI windows are configured.

The starting point of UE from SI windows, which is begun through, to be received PDSCH using SI-RNTI and continues to until with si- Untill the last time point of the SI windows of WindowLength absolute time or untill receiving SI message.However, In SFN mod 2=0 frame, on all in subframe #5, all MBSFN (multicast/multicast single-frequency network network) subframes and TDD Row subframe is left out.

When no reception SI message is untill the last time point of SI windows, for related SI message, next Individual SI windows, repeat to receive.

In the above-mentioned methods, for the SIB2 to SIB16 transmitted in SI windows, UE is transmitting corresponding SIB by decoding Subframe in the PDCCH DCI that is transmitted obtain frequency domain dispatching information.Further, since SIB1 corresponds to the pass SI windows W notices UE time domain schedule information, thus can UE successfully to DCI carry out blind decoding when acquisition on transmission SIB2 to SIB16's The information of subframe,

Table 4 below and table 5 show the beginning subframe numbers (SI windows start from subframe #a) of SI windows and on as described above every Position (the position SFN of transmission SI frame of the SIB of transmission transmission SIB frame is repeated on individual cycle (si-Periodicity) T Mod T=FLOOR (x/10)).

[table 4]

[table 5]

For each SIB (SIB2 to SIB16) or multiple SIB blocks, cycle (si-Periodicity) T value is arranged to 8th, the identical value in 16,32,64,128,256 and 512, and refer to multiframe.

For example, when showing to be sent to UE SIB schedule informations in such as table 6 below by SIB1, transmitting SIB position as schemed Shown in 5.Fig. 5 is the figure for describing domain scheduling during system information.

[table 6]

W=10ms
	SIB2:N=1, T=8, a=0, SFN mod T=0
SIB13:N=2, T=8, a=0, SFN mod T=1
	SIB14:N=3, T=16, a=0, SFN mod T=2

Next, the method that change system information will be described.

Fig. 6 is the figure for describing the change of system information.

The change of system information is occurred over just in specific radio frames.That is, being occurred using the change of system information The concept in the modification cycle in specific radio frames.Can be multiple within according to the modification cycle by dispatching the definition made Send the system information with identical content.Modification cycle boundary can be defined by SFN mod m=0 SFN values.M refers to The number for the radio frames that the modification cycle is included.Pass through the system information configuration modification cycle.

When BS 20 changes system information, BS 20 notifies this changes of UE 10 first.That is, this can pass through The modification cycle performs.In next modification cycle, BS 20 can transmit the system information of renewal.Different face in figure 6 Color indicates different system information blocks.UE 10 is obtained since next modification cycle immediately after change notice is received New modification information.UE 10 can be using the system information previously obtained until UE 10 obtains new system information.

The UE that beep-page message can be used for UE the and RRC_CONNECTED states to RRC_IDLE states notifies system information Change.Include seeking for special parameter (such as system information modification (systemInfoModification)) when UE 10 is received When exhaling message, UE 10 in next modification cycle boundary it will be seen that change system information.Although UE 10 understands system letter The change of breath, but the further details of the change of system information can not be provided.

Whether special parameter (such as SystemInformationBlockType1) can include sending out in notifying system message The raw value label systemInfoValueTag changed.For example, UE 10 can utilize value mark when being returned outside coverage SystemInfoValueTag is signed to verify whether previously stored system information is still effective.In addition, unless from being Specified at the time of information of uniting is effective after 3 hours, otherwise UE 10 is it is contemplated that stored system information is invalid.

UE 10 can combine the reception value for the PBCH code words transmitted in 4 frames corresponding to PBCH transmission cycles, and can be with The reception value for the code word transmitted on other PBCH transmission cycles is not combined.

BS 10 should repeatedly transmit PBCH36 times to 95 times of normal transmissions, so that the coverage with extension MTC UE receive PBCH and successfully carry out blind decoding.In other words, it should using 144 subframes to 384 subframes repeatedly 4 subframes transmitted in 4 conventional frames upload defeated PBCH code words.In the case of FDD, when assuming that a frame is by 10 subframe structures Into and be present in all subframes in a frame and transmitted for PBCH, then for the MTC UE of the coverage with extension, 15 to 39 frames should be used for PBCH transmission.

As described above, when substantial amounts of transfer resource is used for the MTC UE of the coverage with extension, distribution is extremely present In the relative reduction of the amount of other UE of same cells transfer resource.In addition, the feature of the PBCH based on cyclical transmission, when with It is too short or when continuously transmitting PBCH on continuous frame in the MTC UE of the coverage with extension PBCH transmission cycle, In the worst case, other UE possibly can not receive transfer resource., can be with for other physical channels in addition to PBCH Distribution to the MTC UE of the coverage with extension transfer resource is also reduced relatively.

When most DL transfer resources are used for the terminal of the coverage with extension on each transmission cycle, by In system information, relative shortage is become for transmitting DTCH PDSCH transmission resource to each UE.

Invention to solve this problem, it is proposed that intermittently repeating the method for Transmission system information.More specifically, for having The UE of the coverage of extension, intermittently repeats Transmission system information, and be specifically only on specific transmission cycle Unite the information period beyond cycle on by with conventional method identical method Transmission system information.This is referred to as " interval Property repetition system information transmission method " or " intermittent repeat PBCH transmission methods ".

The maximum number that can be distributed in a frequency domain to MTC UE PRB pair is 6, and 6 continuous PRB (or PRB pair) The arrowband (Narrow Band, NB) used referred to as MTC UE.Table 7 shows to be included in the transmission of frequency domain for each system BW The number of PRB in resource.

[table 7]

BW	1.4MHz	3MHz	5MHz	10MHz	15MHz	20MHz
							N_PRB	6	15	25	50	75	100

As the SI for being transferred to MTC UE, the transfer resource of frequency domain is distributed in units of NB.Table 8 is shown, when continuous with 6 PRB be unit configuration frequency resource NB when, NB number and the remaining PRB not being included in NB number.

[table 8]

BW	N_NB	The remaining PRB of #
			1.4MHz	1	0
3MHz	2	3
			5MHz	4	1
10MHz	8	2
			15MHz	12	3
20MHz	16	4

First, MTC SIB1 are the MTC SI that MTC UE are received first after MIB is received.In the present invention, MTC SIB1 Fixed when domain scheduling is used by the method identical method with conventional SIB1.In other words, predefine wireless frame period and The single or multiple subframes of MTC SIB1 transmission are ready to use within the cycle.BS transmits MTC SIB1 in predefined subframe. MTC SIB1 repetition is needed to transmit for the MTC UE, BS of the coverage with extension.MTC SIB1 transmission cycle T_SIB1bisIt is defined as 8 radio frames.

When system BW is more than or equal to 5MHz and repeats transmission MTC SIB1, using by using two according to system BW Or four NB carried out in different subframes frequency transmission resources frequency hopping and use different NB frequency-hopping method.

- for 12-50 RB system BW, frequency hopping NB quantity N_FH=2

- for 51-110 RB system BW, frequency hopping NB quantity N_FH=4

Accordingly, it would be desirable to can be used for the frequency-hopping method of MTC SIB1 repetition transmission.

The present invention relates to the method for the MTC UE Transmission system information for the coverage with extension, and more specifically Ground, is related to the method and frequency-hopping method for the transfer resource for being provided for Transmission system information.

The present invention proposes that the MTC UE for being directed to the coverage with extension repeatedly transmit MTC SIB1 frequency-hopping method.

As shown in table 8, according to system BW, it can be used for the NB of MTC SIB1 repetition transmission number N_NB=4,8, 12 or 16.Therefore, N_NBIndividual adjacent BS cells can transmit MTC SIB1 by using different NB in identical subframe. In other words, in order to avoid by the interference between the MTC SIB1 of adjacent BS cell transmissions, adjacent BS cells can not Overlappingly use NB.

However, frequency-hopping mode should be designed such that N_NBIndividual adjacent BS cells can be to carrying out repeating biography by frequency hopping MTC SIB1 are repeatedly transmitted by using different NB in defeated subframe.

[embodiment 1：The NB indexes of first subframe]

In the present invention, the physical district ID (PCID) of each cell and the number of the NB depending on system BW can be used N_NBThe NB used in the first subframe that MTC SIB1 are transmitted on each transmission cycle to determine to stay in MTC SIB1.Can be as follows It is determined that the NB indexes NBidx used in the first subframe_1st。

Embodiment 1-1

The NB indexes NBidx used in the first subframe_1stThe number N of NB using PCID and for each system BW_NBIt Between modular arithmetic result, as shown in equation (1).

NBidx_1st=PCID mod N_NB(1)

Embodiment 1-2

In the case of CRS, when the PCID mod 3 of neighbor cell operation result is different, different resource elements (Resource Element, RE) is transmitted for CRS.Therefore, it is determined that during PCID, PCID be determined to be so that, relative to phase The PCID of adjacent cell, PCID mod 3 result has different values.Now, in embodiment 1-1, PCID mod 3 fortune Calculating result has different value or NBidx_1stWith identical value.Therefore, between the CRS by adjacent cell transmission not Interference is produced, and interference is produced between MTC SIB1.

[table 9]

PCID	PCID mod 3	NBidx_1st
			0	0	0
4	1	0
			8	2	0
12	0	0
			16	1	0
20	2	0

In order to solve the problem, in embodiment 1-2, come using the result of the modular arithmetic between PCID and 3 multiple Determine NBidx_1st.Following equation (2) corresponds to the maximum of embodiment 1-2 embodiment and the multiple using PCID and 3 Value (is equal to or less than N_NB) between the result of modular arithmetic be used as NBidx_lst。

Embodiment 1-3

Consider according to PCID value to be in the time domain even number or odd number and situation about being transmitted by different subframes, Floor (PCID/2) and NB for each system BW number N_NBBetween modular arithmetic result be used as NBidx_1st, such as under Shown in the equation (3) in face.

[equation 3]

Embodiment 1-4

Consider according to PCID value to be in the time domain even number or odd number and situation about being transmitted by different subframes, Floor (PCID/2) and such as in embodiment 1-2 be equal to or less than N_NB3 multiple maximum between modular arithmetic As a result it is used as NBidx_1st, as shown in following equation (4).

[embodiment 2：The NB indexes used in frequency hopping]

Next, the method that description determines the NB indexes used in the subframe for repeating transmission MTC SIB1.In the present invention In, the first NBidx for including using during MTC SIB1 are transmitted of frequency hopping is ready to use in MTC SIB1 transmission cycles_1stNB ropes SFN n can be defined as by drawing_f, subframe index n in radio frames_sf(here,And n_sIndicate in radio frames Time slot is indexed) and hop period Y_CHFunction.

Embodiment 2-1

Following equation (5) is starting from NBidx_1stEach hop period on pass through N_NB/N_FHDefine NB frequency hoppings.

In embodiment 2-1, when hop period corresponds to a radio frames, i.e. Y_CH, can be as following when=10 Equation (6) represents equation (5).

Embodiment 2-1 frequency-hopping mode is as shown in table 10 to table 13.

[table 10]

N_NB=4,

[table 11]

N_NB=8,

[table 12]

N_NB=12,

[table 13]

N_NBB=16,

Embodiment 2-2

In N_FHWhen=4, frequency hopping can be defined as making N_NB/ 2 and N_NB/ 4 alternatings, as shown in following equation (7).

If N_FH=2, then

α=0

Otherwise,

Embodiment 2-2 frequency-hopping mode is as shown in table 14 below and table 15.

[table 14]

N_NB=12,

[table 15]

N_NB=16,

Embodiment 2-3

In N_FHWhen=4, in embodiment 2-1 and embodiment 2-2, identical frequency hopping is repeated on four hop periods Pattern.Embodiment 2-3 is extended to repeat identical frequency hopping mould on the hop period of 8 repetitions of frequency-hopping mode Formula, and embodiment 2-3 can be expressed as following equation (8).

If N_FH=2, then

α=0

Otherwise,

Embodiment 2-3 frequency-hopping mode is as shown in table 16 below and table 17.

[table 16]

N_NB=12,

[table 17]

N_NB=16,

Embodiment 2-4

6 PRB at system BW center, which are used for PBCH and PSS/SSS, to be transmitted.When the son in transmission PBCH and PSS/SSS When transmission MTC SIB1 are repeated on frame, relative to the transfer resource for PBCH and PSS/SSS transmission, with identical with conventional method Method, can be punctured by MTC SIB1 transmission data and transmit.

In another method, the NB overlapping with PBCH and PSS/SSS transmission can be not used in MTC SIB1 transmission.This In the case of, for the MTC SIB1 transmission repeated and the NB of frequency hopping number N_NBAs shown in table 18 below.

[table 18]

BW	N’_NB
		5MHz	2
10MHz	6
		i5MHz	10
20MHz	14

Table 19 below is shown for configuring the new NB index NBindex ' of frequency-hopping mode and for actual MTC SIB1 Relation between the NB indexes NBindex of transmission.Therefore, in embodiment 2-4, by using NBindex ' configuration frequency hopping moulds Formula and the NB indexes that frequency-hopping mode is mapped into table 19 below to find and transmit using the MTC SIB1 for reality.

[table 19]

In embodiment 2-4, as N ' as shown in table 19_NBPass through vague generalization embodiment 2-2 when not being 4 multiple N obtained from equation_FHIn the case of=4, frequency hopping can be defined as making N'_NB/ 2 and β NB replace, and it can be represented as down The equation (9) in face.

If N_FH=2, then

α=0

Otherwise,

In equation (9), β scope is 0<β<N'_NB.In order to realize the jump similar with embodiment 2-2 frequency-hopping mode Frequency mode, can be usedOr

In this specification, equationRepresent downward rounding operation (floor) andExpression rounds up computing (ceil)。

Embodiment 2-5

In embodiment 2-5, on N ' as shown in table 19_NBIt is not the situation of 4 multiple, can be such as following Make embodiment 2-1 equation (5) vague generalization in formula (10) and use

As transmission cycle T_SIB1bisCorresponding to the NB of frequency hopping number N_FHMultiple when, such as can make in equation (11) Formula (10) vague generalization is simultaneously used.

In addition, when hop period corresponds to a radio frames, i.e. Y_CH, can be such as in following equation (12) when=10 Middle expression equation (11).

Work as T_SIB1bis=8, depending on system BW N_NB=4,8,12,16, and N_FHWhen=2 or 4, such as in embodiment 2-1 In, embodiment 2-5 frequency-hopping mode has the identical result of table 10 with embodiment 2-1.

Embodiment 2-6

Describe embodiment 2-1 to 2-5 for system information transmissions above.

Embodiment 2-6 is described using and is used embodiment 2-1 to embodiment 2-5 frequency-hopping method to pass The method of defeated such as general PDSCH/PUSCH/MPDCCH physical channel.

First, NBidx_1stIt is included in DCI and is sent to UE.It can be used in the first hop period NBidx_1st, physical channel, such as PDSCH/PUSCH/MPDCCH are transmitted on the first hop period, can be implemented by changing Mode 2-5 equation (10) and equation (13) calculates NBidx and in the subsequent hop period.Herein, n_{sf_1st}Correspond to The index of the first subframe used in the first hop period, transmitting physical channel, such as PDSCH/ in the first hop period PUSCH/MPDCCH。N_FHValue can be fixed to 2 or 4, without guard system BW.

Alternatively, it is contemplated that the index n of the first radio frames used in the first hop period_{f_1st}With the first subframe Index n_{sf_1st}, following equation (14) can be set up, transmits such as PDSCH/PUSCH/MPDCCH's in the first hop period Physical channel.

Alternatively, it is contemplated that the index n of the first radio frames used in the first hop period_{f_1st}, first subframe Index n_{sf_1st}And corresponding to the 1023 of maximum wireless frame number, following equation (15) can be set up, thereby while in radio frames Configuration hop period does not change the NB in identical hop period yet in number 0 subframe, and the subframe of radio frame number 0 continues to radio frames Numbers 1023 subframe, transmits such as PDSCH/PUSCH/MPDCCH physical channel in the first hop period.

Fig. 7 shows the method that BS according to the embodiment of the present invention repeatedly sends system information.

Reference picture 7, in step S700, BS determines the arrowband being ready to use in the first subframe being transmitted to MTC UE Index.

BS can determine Transmission system information based on physical district ID and depending on the number of the arrowband of system bandwidth The index of first arrowband.For example, the first system information can be by with physical district ID and depending on the narrow of system bandwidth The arrowband of the corresponding index of value of modular arithmetic between the number of band is transmitted.

In step S720, BS is based on the index of the arrowband of Transmission system information first, the arrowband depending on system bandwidth Number and configure frequency-hopping mode for the number of the arrowband of frequency hopping.

BS can be by using the index of the arrowband of Transmission system information first and by by depending on the narrow of system bandwidth The number of band is except between the value generated for the number of the arrowband of frequency hopping the and number with the arrowband depending on system bandwidth The value of modular arithmetic between mesh, to configure frequency-hopping mode.

At this point it is possible to by by depending on the number of the arrowband of system bandwidth remove for frequency hopping arrowband number and The value of generation performs downward rounding operation.

, can be by repeating above-mentioned frequency-hopping mode collocation method when the number of the arrowband for frequency hopping is more than or equal to 3 To configure frequency-hopping mode.

That is, with the index with the arrowband of the second Transmission system information and by by depending on the narrow of system bandwidth The number of band removes the narrow of the corresponding index of value of the modular arithmetic of the sum between the value generated for the number of the arrowband of frequency hopping Band can be determined that the arrowband of next subframe of Transmission system information.

When configuring frequency-hopping mode by said process, BS passes through by indexing the arrowband indicated by system according to frequency-hopping mode Information is repeatedly transmitted to MTC UE.

The method that Fig. 8 shows UE according to the embodiment of the present invention repeatedly reception system information.

Reference picture 8, in step S800, narrow-band reception system informations of the UE first by being determined by BS.

Arrowband first in the subframe of reception system information can be had with physical district ID and depending on system bandwidth Arrowband number between modular arithmetic the corresponding index of value arrowband.

After system information is received from BS, UE by repeat Transmission system information next subframe in by BS roots The arrowband determined according to frequency-hopping mode carrys out reception system information.

The arrowband of Transmission system information can be had with the index of the arrowband of Transmission system information first and by that will take Certainly the number in the arrowband of system bandwidth remove it is between the value that is generated for the number of the arrowband of frequency hopping and with depending on being The arrowband of the corresponding index of value of modular arithmetic between the number of the wide arrowband of regiment commander.

Thus UE avoids the system sent from neighbor bss according to the frequency-hopping mode determined by BS repeatedly reception system information The interference of information.

Fig. 9 shows the configuration of the BS according to another embodiment of the present invention.

Reference picture 9, includes controller 910, emitter 920 and receiver 930 according to the BS 900 of another embodiment.

Controller 910 is provided for transmission system for performing the MTC UE of the required coverage with extension of the present invention Unite information transfer resource and according to frequency hopping control BS general operation.

Controller 910 is by with physical district ID and depending on the modular arithmetic between the number of the arrowband of system bandwidth The arrowband for being worth corresponding index is defined as the arrowband of Transmission system information first.

In addition, controller will be by using the index of the arrowband of Transmission system information first and by that will depend on system bandwidth The number of arrowband remove between the value that is generated for the number of the arrowband of the frequency hopping and number with the arrowband for frequency hopping Between the value of modular arithmetic configure frequency-hopping mode.

That is, BS determines the rope of the first arrowband based on physical district ID and depending on the number of the arrowband of system bandwidth Draw and the index based on the first arrowband, depending on system bandwidth arrowband number and determine for the number of the arrowband of frequency hopping The index of the arrowband of Transmission system information, to configure frequency-hopping mode.

Emitter 920 is used to performing required signal, message and the data of the present invention and sent to UE and receiver 930 and is used for Received from UE and perform the present invention required signal, message and data, emitter 920 is according to the frequency hopping mould determined by controller 910 System information is repeatedly sent to UE by formula.

Figure 10 shows the configuration of the UE according to another embodiment of the present invention.

Reference picture 10, includes controller 1010, emitter 1020 and receiver according to the UE 1000 of another embodiment 1030。

Receiver 1030 from base station can receive Downlink Control Information, data and message by corresponding channel.

In addition, controller 1010 is provided for for performing the MTC UE of the required coverage with extension of the present invention The transfer resource of Transmission system information and according to frequency hopping control UE general operation.

Emitter 1020 is sent ascending control information, data and message to BS by corresponding channel.

The system information that UE 1000 is received or repeatedly received from BS is that basis is received by the BS frequency-hopping modes determined.

The index for sending the arrowband of the subframe of system information first is confirmed as BS physical district ID and depending on system The value of modular arithmetic between the number of the arrowband of bandwidth.

Based on the index of the arrowband of the subframe of Transmission system information first, depending on system bandwidth arrowband number and use The index of the remaining arrowband for configuring frequency-hopping mode is determined in the number of the arrowband of frequency hopping.

UE passes through the corresponding narrow-band reception system information of the index of the arrowband with being included in frequency-hopping mode.

The standard content or normative document mentioned in the above-described embodiment are omitted with the description of simplified specification, and Constitute a part for specification.Therefore, some contents of standard content or normative document are added to specification or it is being weighed Description during profit is required should be interpreted the scope of the present invention.

Although describing the preferred embodiment of the present invention for illustration purposes, those skilled in the art It will be appreciated that, various modifications, addition can be carried out and replaced, without departing from of the invention as disclosed in the dependent claims Scope and spirit.Therefore, illustrative aspect of the invention is not described for limitation mesh.Appended claims should be based on Book explains the scope of the present invention so that is included in all technology technical concepts being equal in the range of claims and belongs to this Invention.

Claims

1. a kind of base station BS repeats the method for sending system information, methods described includes：

The first arrowband for configuring frequency-hopping mode is determined based on physical district ID and depending on the arrowband number of system bandwidth Index；

Based on the physical district ID, described depending on the arrowband number of system bandwidth and the number of the arrowband for frequency hopping, really The fixed index for being used to configure the remaining arrowband of frequency-hopping mode；And

Repeat to send the system information by arrowband corresponding with the index of the arrowband for configuring the frequency-hopping mode.

2. according to the method described in claim 1, wherein it is determined that the index of first arrowband includes：By using the thing The value of the modular arithmetic between cell ID and the number of the arrowband depending on system bandwidth is managed, the rope of first arrowband is determined Draw.

3. according to the method described in claim 1, wherein it is determined that the index of the remaining arrowband includes：By using described The value of modular arithmetic between physical district ID and the number of the arrowband depending on system bandwidth and by depending on described The value generated in the number of the arrowband of system bandwidth divided by the number of the arrowband for frequency hopping performs downward rounding operation And the value of modular arithmetic between the multiple of the value generated and between the number of the arrowband depending on system bandwidth comes true The index of the fixed remaining arrowband.

4. according to the method described in claim 1, wherein, when the system bandwidth be more than or equal to 12 resource blocks and be equal to or During less than 50 resource blocks, the number of the arrowband for frequency hopping is 2, and when the system bandwidth is more than 50 resource blocks When, the number of the arrowband for frequency hopping is 4.

5. according to the method described in claim 1, wherein, the frequency-hopping mode is configured to from each subframe included narrow Two arrowbands are excluded in band.

6. a kind of method of user equipment (UE) repeatedly reception system information, methods described includes：

By with being connect first based on physical district ID and depending on the arrowband of index that determines of number of the arrowband of system bandwidth Receive the system information；

By with the arrowband based on the physical district ID, the number of the arrowband depending on system bandwidth and for frequency hopping Number determine index narrow-band reception described in system information.

7. method according to claim 6, wherein, it is described to receive the system information first including passing through with by making The rope determined with the value of the modular arithmetic between the physical district ID and the number of the arrowband depending on system bandwidth The arrowband drawn receives the system information first.

8. method according to claim 6, wherein, the reception system information includes：By with the thing The value of modular arithmetic between reason cell ID and the arrowband number depending on system bandwidth with by by described depending on being The wide arrowband number of regiment commander divided by the number of the arrowband for frequency hopping and the downward rounding operation of value execution that generates and generate Value multiple between and, the value of modular arithmetic between the arrowband number depending on system bandwidth corresponding index Arrowband, receives the system information.

9. method according to claim 6, wherein, when the system bandwidth is more than or equal to 12 resource blocks and be equal to or During less than 50 resource blocks, the number of the arrowband for frequency hopping is 2, and when the system bandwidth is more than 50 resource blocks When, the number of the arrowband for frequency hopping is 4.

10. method according to claim 6, wherein, by arrowband included in each subframe except two narrow System information described in other narrow-band receptions outside band.

11. a kind of base station BS, including：

Controller, the controller is used to determine to be used to match somebody with somebody based on physical district ID and depending on the number of the arrowband of system bandwidth Put the index of the first arrowband of frequency-hopping mode, and the number based on the physical district ID, the arrowband depending on system bandwidth Mesh and number for the arrowband of frequency hopping determine the index of the remaining arrowband of the configuration frequency-hopping mode；And

Emitter, the emitter is used to send by arrowband corresponding with the index of the arrowband for configuring the frequency-hopping mode System information.

12. BS according to claim 11, wherein, the controller is by using the physical district ID and described depends on The value of modular arithmetic between the number of the arrowband of system bandwidth determines the index of first arrowband.

13. BS according to claim 11, wherein, the controller is by using the physical district ID and described depends on The value of modular arithmetic between the number of the arrowband of system bandwidth and by by the number of the arrowband depending on system bandwidth The number of mesh divided by the arrowband for frequency hopping and between the multiple of value that the value that generates performs downward rounding operation and generated And the value of modular arithmetic between the number of the arrowband depending on system bandwidth determine the institute of the remaining arrowband State index.

14. BS according to claim 11, wherein, when the system bandwidth is more than or equal to 12 resource blocks and be equal to or During less than 50 resource blocks, the number of the arrowband for frequency hopping is 2, and when the system bandwidth is more than 50 resource blocks When, the number of the arrowband for frequency hopping is 4.

15. BS according to claim 11, wherein, the frequency-hopping mode is configured to from each subframe by the controller Two arrowbands are excluded in included arrowband.

16. a kind of user equipment (UE), the user equipment, which is used to pass through, to be had based on physical district ID and depending on system bandwidth Arrowband number determine index arrowband reception system information first, and by with based on the physical district ID, The number of the arrowband depending on system bandwidth and for frequency hopping arrowband number determine index narrow-band reception described in System information.

17. method according to claim 16, wherein, the UE passes through with by using the physical district ID and institute The arrowband for stating the index of the value determination of the modular arithmetic between the number depending on the arrowband of system bandwidth is received first The system information.

18. method according to claim 16, wherein, the UE passes through with the physical district ID and described depending on The value of modular arithmetic between the number of the arrowband of system bandwidth and by by the number of the arrowband depending on system bandwidth The number of mesh divided by the arrowband for frequency hopping and between the multiple of value that the value that generates performs downward rounding operation and generated And, described in the narrow-band reception of the corresponding index of the value of modular arithmetic between the number of the arrowband depending on system bandwidth System information.

19. method according to claim 16, wherein, when the system bandwidth is more than or equal to 12 resource blocks and is equal to Or during less than 50 resource blocks, the number of the arrowband for frequency hopping is 2, and when the system bandwidth is more than 50 resource blocks When, the number of the arrowband for frequency hopping is 4.

20. method according to claim 16, wherein, the UE by arrowband included in each subframe except System information described in other narrow-band receptions outside two arrowbands.