CN106211246A

CN106211246A - A kind of reduce the method for channel-sounding signal transmission times, base station and terminal

Info

Publication number: CN106211246A
Application number: CN201610437247.9A
Authority: CN
Inventors: 王三新
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2016-06-17
Filing date: 2016-06-17
Publication date: 2016-12-07

Abstract

The embodiment of the invention discloses a kind of method reducing channel-sounding signal transmission times, base station and terminal, described method includes that base station obtains terminal community switching times within a period of time or cell reselection number of times, when described terminal community switching times within a period of time or cell reselection number of times are less than or equal to predetermined threshold value, change will be sent to the system information block SIB information of described terminal, when described terminal community switching times within a period of time or cell reselection number of times are more than predetermined threshold value, SRS information in the SIB information that will be sent to described terminal is not changed.Make the terminal being under some special scenes can reduce unnecessary SRS transmission times according to the instruction of base station, thus improve transmission stability and spectrum utilization efficiency.

Description

A kind of reduce the method for channel-sounding signal transmission times, base station and terminal

Technical field

The present invention relates to the communications field, be specifically related to a kind of reduce the method for channel-sounding signal transmission times, base station and Terminal.

Background technology

Along with sharply increasing of message volume, authorize frequency spectrum to seem and be increasingly not enough to provide higher network capacity. Therefore, third generation partner program (3rd Generation Partnership Project, 3GPP) introduces mandate frequency Spectrum auxiliary accesses the concept of (Licensed Assisted Access, LAA), i.e. uses in unauthorized frequency range unlicensed spectrum Long-term artistic skills (Long Term Evolution, LTE) network technology, framework based on carrier aggregation, made by authorizing frequency range carrier wave For main plot (Pcell), unauthorized frequency range unlicensed spectrum carrier wave is only as secondary cell (Scell).In order to avoid unauthorized Clashing between the equipment worked on frequency range unlicensed spectrum, LTE network have employed listem-before-talk (Listen Before Talk, LBT) channel competition access mechanism, i.e. user terminal (User Equipment, UE) only inspection on unlicensed spectrum Measure channel to be in idle condition and just can take this channel.

At present, (Sounding Reference Signal is called for short to use Sounding Reference Signal in LTE system SRS) assessing channel quality, the SRS information of UE can be configured by such as base station, so that what UE configured according to this SRS information letter carries out channel measurement and feedback.But channel is detected by terminal and corresponding SRS feedback needs to expend relatively The expense of many resources.Reduce above-mentioned resource overhead the most further to be just particularly important.

Summary of the invention

Embodiments provide and a kind of reduce the method for channel-sounding signal transmission times, base station and terminal, to The number of times of SRS can be sent with terminal, improve the availability of frequency spectrum.

First aspect, the embodiment of the present invention provides a kind of method reducing Sounding Reference Signal transmission times, including:

Base station obtains terminal community switching times within a period of time or cell reselection number of times, when described terminal is at one section When community switching times in time or cell reselection number of times are less than or equal to predetermined threshold value, change will be sent to described terminal System information block SIB information, described SIB information include for indicate described terminal need not send channel detection with reference to letter Number SRS information, wherein said base station operation is authorizing in frequency range or unauthorized frequency range；

When described terminal community switching times within a period of time or cell reselection number of times are more than predetermined threshold value, the most right The SRS information will being sent in the SIB information of described terminal is changed.

Second aspect, the embodiment of the present invention provides a kind of method reducing Sounding Reference Signal transmission times, including:

Terminal is authorizing the system information block SIB information that base station sends that receives in frequency range or unauthorized frequency range；

If described SIB information changes, and include for indicating described terminal to need not transmission channel detection with reference to letter Number SRS information, the most described terminal does not sends channel detection reference information SRS to described base station；

If described SIB information does not changes, then determine whether described base station sends described SRS based on described SIB information.

The third aspect, the embodiment of the present invention provides a kind of base station, including:

Change unit, for obtaining terminal community switching times within a period of time or cell reselection number of times, when described When terminal community switching times within a period of time or cell reselection number of times are less than or equal to predetermined threshold value, change will send To the system information block SIB information of described terminal, described SIB information includes for indicating described terminal to need not send channel Detection reference signal SRS information, wherein said base station operation is authorizing in frequency range or unauthorized frequency range；

Stick unit, when described terminal community switching times within a period of time or cell reselection number of times are more than presetting threshold During value, the SRS information in the SIB information that will be sent to described terminal is not changed.

Fourth aspect, the embodiment of the present invention provides a kind of terminal, including:

Receive unit, authorizing, for terminal, the system information block SIB receiving base station transmission in frequency range or unauthorized frequency range Information；

Transmitting element, if changing for described SIB information, and includes for indicating described terminal to need not send letter Road detection reference signal SRS information, the most described terminal does not send channel detection reference information SRS to described base station；

Described transmitting element, does not changes if being additionally operable to described SIB information, then determines to institute according to described SIB information State base station send or do not send described SRS.

It can be seen that by the embodiment of the present invention, be under special scenes (such as: under high-speed mobile scene) for some Terminal, base station can according to community switching times or cell reselection number of times determine the need for change SIB information, to indicate terminal The need of sending SRS.Make the terminal being under some special scenes can reduce unnecessary SRS according to the instruction of base station Transmission times, thus improve transmission stability and spectrum utilization efficiency.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1-a is the SRS configuration schematic diagram that the embodiment of the present invention provides；

Fig. 1-b is the 2nd SRS configuration schematic diagram that the embodiment of the present invention provides；

Fig. 1-c is the network structure shown in the embodiment of the present invention；

Fig. 1-d is the first of a kind of method reducing Sounding Reference Signal transmission times that the embodiment of the present invention provides Embodiment schematic flow sheet；

Fig. 1-e is the 3rd SRS configuration schematic diagram that the embodiment of the present invention provides；

Fig. 1-f is the 4th SRS configuration schematic diagram that the embodiment of the present invention provides；

Fig. 2 is the second reality of a kind of method reducing Sounding Reference Signal transmission times that the embodiment of the present invention provides Execute example schematic flow sheet；

Fig. 3 is the first embodiment structural representation of a kind of base station that the embodiment of the present invention provides；

Fig. 4 is the structural representation of the second embodiment of a kind of base station that the embodiment of the present invention provides；

Fig. 5 is the 3rd example structure schematic diagram of a kind of base station that the embodiment of the present invention provides；

Fig. 6 is the first embodiment structural representation of a kind of terminal that the embodiment of the present invention provides；

Fig. 7 is the structural representation of the second embodiment of a kind of terminal that the embodiment of the present invention provides.

Detailed description of the invention

Embodiments provide and a kind of reduce the method for channel-sounding signal transmission times, base station and terminal, To can send the number of times of SRS with terminal, improve the availability of frequency spectrum.

In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present invention Accompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only The embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people The every other embodiment that member is obtained under not making creative work premise, all should belong to the model of present invention protection Enclose.

Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second " and " the 3rd " etc. are For distinguishing different object, not for describing particular order.Additionally, term " includes " and they any deformation, it is intended that In covering non-exclusive comprising.Such as contain series of steps or the process of unit, method, system, product or equipment do not have It is defined in the step or unit listed, but the most also includes step or the unit do not listed, or the most also include Other step intrinsic for these processes, method, product or equipment or unit.

Technique described herein may be used for various cordless communication network, such as CDMA ((Code DivisionMultiple Access, CDMA) network, time division multiple acess (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), OFDM (Orthogonal Division Multiple Access, OFDMA) network, single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA) and other network.Term " network " and " system " are led to Often exchange use.Cdma network can realize such as general land wireless access (Universal Telecommunication Radio Access, UTRA), telecommunications industry association (Telecommunications Industry Association, TIA) Etc wireless technology.UTRA technology includes other modification of wideband CDMA (WCDMA) and CDMA.Technology includes from electronics IS-2000, IS-95 and IS-856 mark of TIA (Electronic Industries Association, EIA) and TIA Accurate.TDMA network can realize such as global system for mobile communications (Global System for Mobile Communication, GSM) etc wireless technology.OFDMA system can realize the most evolved UTRA (E-UTRA), super shifting Dynamic broadband (Ultra Mobile Broadband, UMB), IEEE802.11 (Wireless Fidelity, Wi-Fi), the IEEE802.16 (whole world Microwave interconnecting accesses Worldwide Interoperability for Microwave Access, WiMAX), The wireless technology of IEEE802.20, Flash-OFDMA etc.UTRA and E-UTRA technology is Universal Mobile Telecommunications System (UMTS) A part.3GPP Long Term Evolution (Long Term Evolution, LTE) and senior LTE (LTE-A) are to use E-UTRA The more recent version of UMTS.The document of the tissue from entitled " third generation partner program " (3GPP) describes UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM.Document at the tissue of call oneself " third generation partner program 2 " (3GPP2) In describe and UMB.Technology described herein may be used for wireless network mentioned above and wireless access technology, with And other wireless network and wireless access technology.For the sake of clarity, below some aspect of this technology be for LTE or LTE-A (or being generically and collectively referred to as " LTE/-A ") is described, and uses this LTE/-A term in following many descriptions.

ENodeB (eNB) can be the station communicated with UE, and is referred to as base station, node B, access point etc..Each ENB can provide communication overlay for specific geographic area.In 3 gpp, term " community " is according to using the upper and lower of this term Literary composition can refer to this specific geographical coverage area of eNB and/or serve eNB subsystem this specific of this overlay area Geographical coverage area.

ENB can provide communication overlay for macrocell, picocell, Femto cell and/or other type of community. Macrocell generally covers relatively large geographic area (such as, radius is the scope of a few km), and can allow by having The unconfined access of UE of the service signing with network provider.Picocell generally covers relatively small geographic area, and And can allow by the unconfined access of UE of the service signing having with network provider.Femto cell generally also covers phase To less geographic area (such as, family), and may be provided in addition to unconfined access by having and femto The limited access of the UE of cell association (such as, the UE in closed user group (Closed Subscriber Group, CSG), The UE etc. of the user in family).The eNB of macrocell is referred to alternatively as grand eNB.The eNB of picocell is referred to alternatively as slight eNB.With And, the eNB of Femto cell is referred to alternatively as femto eNB or family eNB.

In the lte networks, the SRS information of UE can be configured by base station, so that UE believes according to this SRS configured Breath carries out channel measurement and feedback.Such as, UE is carrying out Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) can report to base station before data transmission detection reference signal (Sounding Reference Signal, SRS), in order to base station uses SRS to assess uplink signal-channel quality.But channel is detected by terminal and corresponding SRS is anti- Feedback needs to expend the expense of more resource.Reduce above-mentioned resource overhead the most further to be just particularly important.

Research shows, is under special scenes the terminal of (such as: under high-speed mobile scene) due to channel matter for some It is poor to measure, and sends out SRS the most frequently and can cause the excess overhead of resource, reduces upstream rate and the availability of frequency spectrum of terminal.Examine Considering and need reasonably to take frequency range in unauthorized frequency range, the embodiment of the present invention proposes one and need not carry out channel too much Detection and the method and apparatus of feedback SRS, by the embodiment of the present invention, be under special scenes (such as: at a high speed for some Under mobile context) terminal, base station can according to community switching times or cell reselection number of times determine the need for change SIB letter Breath, to indicate terminal the need of sending SRS so that being in the terminal under some special scenes can subtract according to the instruction of base station Few unnecessary SRS transmission times, thus improve transmission stability and spectrum utilization efficiency.

Concrete, the method for a kind of Sounding Reference Signal transmission times of the embodiment of the present invention, including:

The most in the whole text it should be noted that base station can obtain terminal community switching time within a period of time at core net Number or cell reselection number of times.Exemplary, base station can obtain little within a period of time of terminal at moving exchanging center MSC District's switching times or cell reselection number of times.End community switching within a period of time can also be obtained at other core network elements Number of times or cell reselection number of times.The embodiment of the present invention does not limit at this.

The present embodiments relate to system information block SIB information, SIB (system information block, believe by system Breath block), it is the system information of a kind of cell level, in addition to SIB, system information also includes MIB (master Information block, Master Information Block).Currently mainly there is SIB1-SIB13, SIB type in 13, the most different SIB tools There is different effects, but be not that all of SIB must exist.Community is mainly by logic channel BCCH Xiang Gai community All terminals send system information.Wherein, SIB is to be sent by physical channel PDSCH, and MIB is sent by physical channel PBCH.

In the carrier aggregation scene of the embodiment of the present invention, UE only can obtain SIB letter on Pcell from broadcast Breath.

In embodiments of the present invention, the Resource Distribution and Schedule information of SRS is sent by SIB2, and i.e. one is passed through community The srs-SubframeConfig field of interior SoundingRS-UL-ConfigCommon configures.

The embodiment of the present invention further relates to Sounding Reference Signal (SRS, Sounding Reference Signal), needs It is noted that at cordless communication network (or referred to as wireless communication system, such as LTE system), base station (Evolved Node B, is called for short eNodeB) SRS can be used to assess the uplink signal-channel quality of different frequency range.Exemplary, the embodiment of the present invention can relate to And two kinds of SRS transmission: periodically SRS and aperiodic SRS.Wherein, periodically SRS can be assisted by wireless heterogeneous networks View (Radio Resource Control, be called for short RRC) configuration, it is preferred that configuration cycle be 2,5,10,20,40,80,160, 320}ms.In aperiodic SRS, eNodeB can pass through descending control information format (downlink control Information format, is called for short DCI format) transmission of 0/4/1A triggering terminal.A kind of possible reality as the present invention Existing mode, SRS can be allocated last single carrier CDMA (Single-carrier occupying certain subframe Frequency-Division Multiple Access, is called for short SC-FDMA) on symbol, if being assigned on the symbol of SRS, This community would be unavailable for Physical Uplink Shared Channel (Physical Uplink Shared Channel, the letter of all terminals Claim PUSCH) transmission.In the scene of carrier aggregation, base station can configure, so that terminal can be the least in different services Sending SRS in district, a terminal can be configured cycle SRS and SRS aperiodic on each Serving cell simultaneously.The most different The SRS of terminal can be at same subframe and identical Physical Resource Block (physical Resource Block is called for short PRB) collection Close transmission, but each other by using different " comb " to distinguish, in view of the reference signal sequence of SRS carries every a son Ripple maps, thus defines the frequency spectrum of " comb " structure.

In order to carry out ascending channel detecting, when base station is terminal distribution SRS resource, therefore, to assure that the SRS of each terminal sends Signal is mutually orthogonal directions.Such as, base station is by the time resource (subframe) different for terminal distribution each in community and/or not The means such as same frequency resource (PRB) and/or different code resources (cyclic shift), available SRS resource in carrying out community Divide, thus ensure that the SRS that each terminal sends does not disturbs.

In embodiments of the present invention, base station is by configuring the transmission time parameter of SRS resource, time-domain position parameter for terminal And frequency domain position parameter thus each terminal distribution is different in being embodied as community time resource and/or different frequency resources, And/or different code resources.

WithSpecify the length of SRS reference sequences, the PRB that namely SRS takies on frequency domain.Its expression formula is:

M_{S C, b}^{R S} = m_{S R S, b} \times N_{S C}^{R B} / 2.

Wherein,Can be found in Fig. 1-a and Fig. 1-b, Fig. 1-a is the SRS configuration signal that the embodiment of the present invention provides Figure, Fig. 1-b is the 2nd SRS configuration schematic diagram that the embodiment of the present invention provides.Wherein, Fig. 1-a and Fig. 1-a is TR36.211's Table 5.5.3.2-1 to Table 5.5.3.2-4, is divided into two kinds of situations according to the size of upstream bandwidth, and Fig. 1-b is to work asTime SRS reference sequences length, Fig. 1-b be work asTime SRS reference sequences length, its In,Refer to each up PRB number.In the figure, C_SRSAnd B_SRSTogether decide on the size of SRS bandwidth and frequency domain point The number become；Refer to the number of each PRB sub-carriers, be fixed value 12 herein.From above-mentioned expression formula it can be seen that SRS Sequence maps every a subcarrier, " comb " structure.

In embodiments of the present invention, in system-frame 10ms, the set that can be used for sending the subframe numbers of SRS needs full Foot:

Wherein,For subframe numbers.

This formula represents which subframe can send SRS, and the system-frame of a 10ms can be divided into 10/T by this formula_SFCPart, Δ_SFCFor the sub-frame offset in every portion.Under FDD, as shown in fig 1-c, Fig. 1-c is that the present invention implements to its span The SRS configuration schematic diagram that example provides, from Fig. 1-c it can be seen that there is T_SFCAnd Δ_SFCValue be reserved, now use Need not send SRS in the terminal represented under this community, such as, under the scene of high-speed mobile, now, community serves primarily in The terminal that adjustment moves on to, or under this community, there is the terminal of high-speed mobile, in the case of this, part terminal is without sending SRS.

The embodiment of the present invention further relate to Physical Downlink Control Channel (Physical Downlink Control Channel, Be called for short PDCCH) in carrier wave instructions field (carrier indicator field, be called for short CIF) field, in carrier aggregation, nothing Opinion is main plot (Primary Cell is called for short Pcell) or secondary cell (secondary cell is called for short Scell), can Carry out PDCCH transmission, and by CIF field in order to determine whether to dispatch the Physical Uplink Shared Channel of other Scell (Physical Uplink Shared Channel is called for short PUSCH) or Physical Downlink Shared Channel (Physical Downlink Shared Channel, is called for short PDSCH).

In embodiments of the present invention, this CIF includes two parameters:

PhysicalConfigDedicated-cif-Presence-r10, for represent Pcell corresponding to this parameter or Whether Scell supports across carrier dispatching, when PhysicalConfigDedicated-cif-Presence-r10 is true, table Show that this Pcell supports across carrier dispatching, when PhysicalConfigDedicated-cif-Presence-r10 is false, Represent that this Pcell does not support across carrier dispatching.

CrossCarrierSchedulingConfig-r10-schedulingCellId-r10, is used for representing this parameter Whether corresponding Scell allows to be dispatched by other Pcell, works as CrossCarrierSchedulingConfig-r10- When schedulingCellId-r10 is 0, represent that this Scell allows to be dispatched by other Pcell, when When CrossCarrierSchedulingConfig-r10-schedulingCellId-r10 is 1, represent that this Scell does not allows Dispatched by other Pcell.

See one that Fig. 1-d, Fig. 1-d provides for the embodiment of the present invention across carrier dispatching schematic diagram, in this example, PhysicalConfigDedicated-cif-Presence-r10 in Pcell is set to True, and in Scell1 CrossCarrierSchedulingConfig-r10-schedulingCellId-r10 is set to 0, it is meant that this cell's PDCCH sends on Pcell, and the PhysicalConfigDedicated-cif-Presence-r10 in Scell2 is set to False, or be not configured.

Being described embodiments herein below in conjunction with the accompanying drawings, wherein, the channel that the embodiment of the present invention is provided is visited Surveying reference signal frequency-hopping method and being based on Fig. 1-c, Fig. 1-c is the network structure shown in the embodiment of the present invention, such as Fig. 1-c institute Showing, this network structure includes base station 110 and terminal 120, wherein, all can pass through wireless network between base station 110 and terminal 120 Set up communication connection, to realize the signal transmission between base station and terminal.

Seeing Fig. 1-d, Fig. 1-d is that a kind of of embodiment of the present invention offer reduces Sounding Reference Signal transmission times The first embodiment schematic flow sheet of method.As shown in Fig. 1-d, the minimizing Sounding Reference Signal that the embodiment of the present invention provides The method of transmission times comprises the following steps:

S101, base station obtain terminal community switching times within a period of time or cell reselection number of times, when described terminal When community switching times within a period of time or cell reselection number of times are less than or equal to predetermined threshold value, change will be sent to institute Stating the system information block SIB information of terminal, described SIB information includes for indicating described terminal to need not send channel detection Reference signal SRS information, wherein said base station operation is authorizing in frequency range or unauthorized frequency range.

In embodiments of the present invention, change the SIB information that will be sent to terminal in base station after, terminal will authorize frequency The SIB information that base station sends is received in section or unauthorized frequency range.

In embodiments of the present invention, when terminal is in high-speed mobile scene, understand the saving communication resource, will the most not Configurating terminal sends SRS.

In embodiments of the present invention, when terminal is in high-speed mobile scene, terminal will constantly switch and to be accessed Community, it is possible to judge whether community is located by terminal community switching times within a period of time or cell reselection number of times In high-speed mobile scene.

Preferably, in embodiments of the present invention, base station operation is in unauthorized frequency range.

S102, when described terminal community switching times within a period of time or cell reselection number of times are more than predetermined threshold value Time, the SRS information in the SIB information that will be sent to described terminal is not changed.

When being appreciated that if community switching times or cell reselection number of times are bigger, now represent that terminal is at a high speed The scene of movement, so now sending SRS by the terminal not configured under this scene.

In embodiments of the present invention, may indicate that terminal does not send SRS due to the SRS information in SIB information, it is possible to Terminal is indicated not send SRS by the SIB information changing terminal.

For terminal, after terminal receives this SIB information, terminal will determine that whether this SIB information changes, Namely whether the SRS information in this SIB information indicates terminal to need not send SRS.

It is appreciated that terminal can carry out respective handling based on this SIB information, if the instruction of this SIB information does not sends SRS, then terminal does not retransmit SRS, and SIB information does not changes, and is now transmitted according to configuration before, namely SIB information Before change, SIB information represents and need not send SRS, then terminal does not send SRS, and SIB information represents before changing and needs to send out Send SRS, then terminal sends SRS.

It can be seen that in the scheme of the present embodiment, under terminal is in special scenes (under the scene of such as high-speed mobile), Community switching times or cell reselection number of times will be caused relatively big, thus base station can be according to community switching times or cell reselection number of times Determine the need for changing SIB information, to indicate terminal the need of sending SRS.Make the end being under some special scenes End can reduce unnecessary SRS transmission times according to the instruction of base station, thus improves transmission stability and spectrum utilization Efficiency.

Alternatively, in some possible embodiments of the present invention, described SIB is SIB2.

Alternatively, in some possible embodiments of the present invention, described method also includes:

Described base station receives the described SRS that terminal sends in described unauthorized frequency range；

When described terminal community switching times within a period of time or cell reselection number of times are more than or equal to predetermined threshold value Time, judge whether the first communication channel quality between described base station and described terminal meets first and preset always according to described SRS Channel quality requirement；

If the first communication channel quality between described base station and described terminal is unsatisfactory for presetting the first channel quality requirement, Then changing the system information block SIB information that will be sent to described terminal, described SIB information includes for indicating described terminal Need not send Sounding Reference Signal SRS information；

If the first communication channel quality between described base station and described terminal meets presets the first channel quality requirement, then SRS information in the SIB information that will be sent to described terminal is not changed.

Wherein, preset channel prescription refers to that the speed of the communication channel between base station and terminal needs to reach certain Other singal reporting code of communication speed or communication channel needs to reach certain indicator conditions, thus ensures between base station and terminal Communication stable.

In embodiments of the present invention, the communication channel quality between terminal and base station be unsatisfactory for preset channel prescription can During to represent terminal by SRS feedback channel quality, difference in channel quality is relatively big, specifically, can be that terminal is in fortune at a high speed In rotating ring border.

In embodiments of the present invention, terminal can be utilized further to be sent to the SRS of base station to judge base station before And whether the communication channel quality between terminal meets preset channel prescription, judges whether this terminal is in high-speed motion Scene.

It is appreciated that at terminal community switching times within a period of time or cell reselection number of times more than or equal to presetting During threshold value, being yet further sent to, by terminal, the communication channel quality that the SRS of base station judges between terminal and base station is No meet the requirements, thus determine whether terminal sends SRS further, and indicate whether terminal is sent out by changing SIB information Send SRS.So that the configuration to terminal SRS is the most accurate.

For terminal, terminal sends described SRS to described base station；

Receive the system information block SIB information that described base station sends；

After base station determines that terminal need not send SRS, then indicate whether terminal sends SRS by SIB information, thus Terminal is after receiving SIB information, and terminal can carry out respective handling based on this SIB information, if this SIB information indicates not Send SRS, then terminal does not retransmit SRS, and SIB information does not changes, and is now transmitted according to configuration before, namely SIB Before information changes, SIB information represents and need not send SRS, then terminal does not send SRS, and SIB information represents before changing and needs SRS to be sent, then terminal sends SRS.

Alternatively, in some possible embodiments of the present invention, what described change will be sent to described terminal is System chunk SIB information, described SIB information includes for indicating described terminal to need not send Sounding Reference Signal SRS information, including:

Change the configuration index of described SRS, send Sounding Reference Signal SRS letter to indicate described terminal need not Breath.

Specifically, it is set to configuration index preset index value, Parameter Map 1-e, configuration index can be set to 637- Between 1023, thus the transmission cycle parameter and sub-frame offset parameter corresponding to SRS is respectively retention reserved, is now Represent that terminal need not send SRS.

After being appreciated that owing to being set to the configuration index of SRS preset index value, terminal now will not send SRS, institute Terminal can be indicated not send SRS in particular by this collocation method with base station.

Alternatively, base station can also indicate terminal not send SRS otherwise.

Accordingly, terminal receive the concrete configuration in base station SRS configuration index after, SRS will not be retransmited.

To be specifically described with entire flow below.

Seeing Fig. 2, Fig. 2 is a kind of method reducing Sounding Reference Signal transmission times that the embodiment of the present invention provides The second embodiment schematic flow sheet.In method shown in Fig. 2, can join with the same or similar content of method shown in Fig. 1-d Examining the detailed description in Fig. 1-d, here is omitted.As in figure 2 it is shown, the minimizing channel detection reference that the embodiment of the present invention provides The method of signal transmission times comprises the following steps:

Terminal SRS is configured by S201, base station.

In embodiments of the present invention, terminal configures according to the SRS of base station and sends SRS to base station, so in terminal to base Standing before transmission SRS, base station configures SRS configuration parameter by high-level signaling or PDCCH signaling to terminal, and is believed by broadcast ((broadcast channel is called for short BCH) broadcasts the subframe for SRS transmission in this community in road.

In embodiments of the present invention, for periodicity SRS, base station carries out SRS parameter configuration by RRC to terminal, for Aperiodicity SRS, by Physical Downlink Control Channel, (Physical Downlink Control Channel is called for short in base station PDCCH) DCI in carries out SRS parameter configuration to terminal.

Specifically, for aperiodicity SRS, at FDD, (Frequency Division Duplexing is called for short FDD), in pattern, base station sends SRS aperiodic by the SRS request field triggering terminal in DCI format0/4/1A； For aperiodicity SRS, in time division duplex (Time Division Duplexing is called for short TDD) pattern, DCI is passed through in base station SRS request field triggering terminal in format0/4/1A/2B/2C sends SRS aperiodic.

In embodiments of the present invention, base station includes sub-frame configuration and frequency domain configuration to the parameter configuration of terminal SRS, and base station The sub-frame configuration parameter of terminal SRS is included that terminal sends the time of SRS, i.e. sends time parameter, and terminal is in time domain The position of upper transmission SRS, namely time-domain position parameter.

Specifically, in embodiments of the present invention, the base station transmission time to the sub-frame configuration of terminal SRS under FDD scene Parameter T_SRSWhen configuring, the subframe sending periodically SRS sends time T_SRSNeed to meet:

(10×n_f+k_SRS-T_offset)modT_SRS=0；

The subframe sending aperiodicity SRS sends time T_SRSNeed to meet:

(10×n_f+k_SRS-T_offset,1)modT_SRS,1=0.

Wherein, n_fRepresent System Frame Number, k_SRSRepresent the subframe numbers in each system-frame, k ∈ 0,1 ... 9}.Periodically The T that SRS sends_offsetAnd T_SRSTaking figure as shown in Fig. 1-e, wherein, aperiodicity SRS sends T_offsetAnd T_SRSTake figure such as Fig. 1-f Shown in, wherein, Fig. 1-e is the 3rd SRS configuration schematic diagram that the embodiment of the present invention provides, and Fig. 1-f is that the embodiment of the present invention provides The 4th SRS configuration schematic diagram.

Specifically, in embodiments of the present invention, when base station sends SRS signal, that can send is " broadband SRS ", it is possible to Being by sending multiple " arrowband SRS ", and each " arrowband SRS " frequency hopping on frequency domain, finally combine each " arrowband SRS " Obtain band information interested.

Specifically, during the configuration frequency domain parameter of base station, arranging should " arrowband SRS " position on frequency domainExpression formula is:

Wherein,Wherein, m_SRS,bAnd B_SRSValue can See shown in Fig. 1-b and Fig. 1-c.

Generally, in normal upstream subframe:

Wherein,Value be 0 or 1.

And work as n_bExpression formula be:

I.e. representing should " arrowband SRS " frequency hopping.

Wherein, b_hop∈ 0,1,2,3}, belong to the other parameter of terminating stage, F_b(n_SRS) represent SRS frequency hopping time frequency domain inclined Move, n_SRSIt is the parameter of a cell level, represents SRS frequency domain position index, it can be seen that because of the n of different terminals_SRSDifference, So SRS transmission frequency domain position does not conflicts each other, it does not interfere with each other mutually.

In embodiments of the present invention, terminal, after the configuration signal receiving SRS, performs listem-before-talk to destination channel (Listen Before Talk is called for short LBT) mechanism, the most idle to detect channel, after channel idle being detected, according to Sub-frame configuration and frequency domain configuration channel carry out SRS transmission.

Specifically, this SRS sends and includes that periodically SRS sends, and also includes that aperiodic, SRS sent, and both can be only to send SRS, it is also possible to send together with SRS with PUSCH.

S202, described terminal send described SRS in described unauthorized frequency range to described base station.

Accordingly, base station will receive the SRS that terminal sends, and now SRS sends according to normal configuration.

S203, base station obtain terminal community switching times within a period of time or cell reselection number of times, when described terminal When community switching times within a period of time or cell reselection number of times are less than or equal to predetermined threshold value, change will be sent to institute State the system information block SIB information of terminal.

Wherein, described SIB information includes for indicating described terminal to need not transmission Sounding Reference Signal SRS letter Breath, wherein said base station operation is authorizing in frequency range or unauthorized frequency range.

S204, when described terminal community switching times within a period of time or cell reselection number of times are more than predetermined threshold value Time, judge whether the first communication channel quality between described base station and described terminal meets first and preset letter according to described SRS Road prescription.

If the first communication channel quality between the described base station of S205 and described terminal is unsatisfactory for presetting the first channel quality Requirement, then change the system information block SIB information that will be sent to described terminal, and described SIB information includes for indicating State terminal to need not send Sounding Reference Signal SRS information.

In another embodiment, if the first communication channel quality between described base station and described terminal meets presets first Channel quality requirement, is not changed the SRS information in the SIB information that will be sent to described terminal.

S206, receive described base station send system information block SIB information；

If S207 described SIB information changes, and include for indicating described terminal to need not transmission channel detection ginseng Examining signal SRS information, the most described terminal does not send channel detection reference information SRS to described base station；

In another embodiment, if described SIB information does not changes, then determine described base station based on described SIB information Whether send described SRS.

It can be seen that in the scheme of the present embodiment, it can be seen that in the scheme of the present embodiment, it is in specific field in terminal Under scape (under the scene of such as high-speed mobile), community switching times or cell reselection number of times will be caused relatively big, thus base station can root Determine the need for changing SIB information, to indicate terminal the need of transmission according to community switching times or cell reselection number of times SRS.Make the terminal being under some special scenes can reduce unnecessary SRS transmission times according to the instruction of base station, from And improve transmission stability and spectrum utilization efficiency.

The embodiment of the present invention also provides for a kind of base station, including:

Specifically, the first embodiment structural representation that Fig. 3, Fig. 3 are a kind of base stations that the embodiment of the present invention provides is referred to Figure, for realizing the disclosed method reducing Sounding Reference Signal transmission times of the embodiment of the present invention.Wherein, such as Fig. 3 institute Showing, a kind of base station 300 that the embodiment of the present invention provides may include that

Change unit 310 and stick unit 320.

Wherein, change unit 310 and be used for obtaining terminal community switching times within a period of time or cell reselection number of times, When described terminal community switching times within a period of time or cell reselection number of times are less than or equal to predetermined threshold value, changing will Being sent to the system information block SIB information of described terminal, described SIB information includes for indicating described terminal to need not send out Channels detection reference signal SRS information, wherein said base station operation is authorizing in frequency range or unauthorized frequency range.

Stick unit 320, when described terminal community switching times within a period of time or cell reselection number of times are more than pre- If during threshold value, the SRS information in the SIB information that will be sent to described terminal is not changed.

It can be seen that in the scheme of the present embodiment, be in terminal under the special scenes such as high-speed mobile, community will be caused to cut Change number of times or cell reselection number of times is relatively big, thus base station 300 can determine whether according to community switching times or cell reselection number of times Need to change SIB information, to indicate terminal the need of sending SRS.Achieve so that being in the terminal under some special scenes Unnecessary SRS transmission times can be reduced according to the instruction of base station, thus improve transmission stability and imitate with spectrum utilization Rate.

In the present embodiment, base station 300 is to present with the form of unit.Here " unit " can refer to application-specific collection Become circuit (application-specific integrated circuit, ASIC), perform one or more software or firmware The processor of program and memorizer, integrated logic circuit, and/or other can provide the device of above-mentioned functions.

It is understood that the function of each functional unit of the base station 300 of the present embodiment can be according to said method embodiment In method implement, it implements process and is referred to the associated description of said method embodiment, and here is omitted.

See the structural representation that Fig. 4, Fig. 4 are the second embodiments of a kind of base station that the embodiment of the present invention provides, be used for Realize Sounding Reference Signal frequency-hopping method disclosed in the embodiment of the present invention.Wherein, terminal as shown in Figure 4 is by Fig. 4 institute The base station that shows is optimized and obtains.Base station shown in Fig. 4 in addition to including the unit of the base station shown in Fig. 4, also have below Extension:

Alternatively, in some possible embodiments of the present invention, described base station 400 also includes:

Receive unit 330, for receiving the described SRS that terminal sends in described unauthorized frequency range；

Judging unit 340, for when described terminal community switching times within a period of time or cell reselection number of times big In or equal to predetermined threshold value time, judge the first communication channel quality between described base station and described terminal always according to described SRS Whether meet the first preset channel prescription；

Described change unit 310, if the first communication channel quality being additionally operable between described base station and described terminal is discontented with Foot presets the first channel quality requirement, then change the system information block SIB information that will be sent to described terminal, and described SIB believes Breath includes for indicating described terminal to need not send Sounding Reference Signal SRS information；

Described stick unit 320, if the first communication channel quality being additionally operable between described base station and described terminal meets Preset the first channel quality requirement, the SRS information in the SIB information that will be sent to described terminal is not changed.

Alternatively, in some possible embodiments of the present invention, described change unit 310, it is additionally operable to:

It can be seen that in the scheme of the present embodiment, be in terminal under the special scenes such as high-speed mobile, community will be caused to cut Change number of times or cell reselection number of times is relatively big, thus base station 400 can determine whether according to community switching times or cell reselection number of times Need to change SIB information, to indicate terminal the need of sending SRS.Achieve so that being in the terminal under some special scenes Unnecessary SRS transmission times can be reduced according to the instruction of base station, thus improve transmission stability and imitate with spectrum utilization Rate.

In the present embodiment, base station 400 is to present with the form of unit.Here " unit " can refer to application-specific collection Become circuit (application-specific integrated circuit, ASIC), perform one or more software or firmware The processor of program and memorizer, integrated logic circuit, and/or other can provide the device of above-mentioned functions.

It is understood that the function of each functional unit of the base station 400 of the present embodiment can be according to said method embodiment In method implement, it implements process and is referred to the associated description of said method embodiment, and here is omitted.

See the structural representation that Fig. 5, Fig. 5 are the 3rd embodiments of a kind of base station that the embodiment of the present invention provides, be used for Realize the disclosed method reducing Sounding Reference Signal transmission times of the embodiment of the present invention.Wherein, this base station 500 can be wrapped Include: at least one bus 301, at least one processor 302 being connected with bus 301 and be connected with bus 301 at least one Individual memorizer 303.

Wherein, processor 302, by bus 301, calls the code of storage in memorizer and exists for base station acquisition terminal Community switching times in a period of time or cell reselection number of times, when described terminal community switching times within a period of time or When cell reselection number of times is less than or equal to predetermined threshold value, change the system information block SIB information that will be sent to described terminal, institute State SIB information to include for indicating described terminal to need not send Sounding Reference Signal SRS information, wherein said base station It is operated in mandate frequency range or unauthorized frequency range；When described terminal community switching times within a period of time or cell reselection When number is more than predetermined threshold value, the SRS information in the SIB information that will be sent to described terminal is not changed.

Alternatively, in some possible embodiments of the present invention, described processor 502 is additionally operable to described base station in institute State and in unauthorized frequency range, receive the described SRS that terminal sends；

Alternatively, in some possible embodiments of the present invention, described processor 502 will be sent to for change The system information block SIB information of described terminal, described SIB information includes for indicating described terminal to need not transmission channel spy Survey reference signal SRS information, including:

It can be seen that in the scheme of the present embodiment, be in terminal under the special scenes such as high-speed mobile, community will be caused to cut Change number of times or cell reselection number of times is relatively big, thus base station 500 can determine whether according to community switching times or cell reselection number of times Need to change SIB information, to indicate terminal the need of sending SRS.Achieve so that being in the terminal under some special scenes Unnecessary SRS transmission times can be reduced according to the instruction of base station, thus improve transmission stability and imitate with spectrum utilization Rate.

In the present embodiment, base station 500 is to present with the form of unit.Here " unit " can refer to application-specific collection Become circuit (application-specific integrated circuit, ASIC), perform one or more software or firmware The processor of program and memorizer, integrated logic circuit, and/or other can provide the device of above-mentioned functions.

It is understood that the function of each functional unit of the base station 500 of the present embodiment can be according to said method embodiment In method implement, it implements process and is referred to the associated description of said method embodiment, and here is omitted.

The embodiment of the present invention also provides for a kind of terminal, including:

Specifically, the first embodiment structural representation that Fig. 6, Fig. 6 are a kind of terminals that the embodiment of the present invention provides is referred to Figure, for realizing the disclosed method reducing Sounding Reference Signal transmission times of the embodiment of the present invention.Wherein, such as Fig. 6 institute Showing, a kind of terminal 600 that the embodiment of the present invention provides may include that

Receive unit 610 and transmitting element 620.

Wherein, receive unit 610, authorizing, for terminal, the system letter receiving base station transmission in frequency range or unauthorized frequency range Breath block SIB information；

Transmitting element 620, if changing for described SIB information, and includes for indicating described terminal to need not send out Channels detection reference signal SRS information, the most described terminal does not send channel detection reference information SRS to described base station；

Described transmitting element 620, does not changes if being additionally operable to described SIB information, then according to described SIB information determine to Described base station sends or does not send described SRS.

Alternatively, in some possible embodiments of the present invention, described transmitting element 620 is additionally operable to:

Described terminal sends described SRS in described unauthorized frequency range to described base station；

Described reception unit 610 is additionally operable to: receive the system information block SIB information that described base station sends；

Described transmitting element 620 is additionally operable to: if described SIB information changes, and include for indicating described terminal not Needing to send Sounding Reference Signal SRS information, the most described terminal does not send channel detection reference information to described base station SRS；

Described transmitting element 620 is additionally operable to: if described SIB information does not changes, then determine institute based on described SIB information State whether base station sends described SRS.

Alternatively, in some possible embodiments of the present invention, described SIB information changes, and include for Described terminal is indicated to need not send Sounding Reference Signal SRS information, including:

After the configuration index of described SRS changes into default index value, send channel detection to indicate described terminal need not Reference signal SRS information.

It can be seen that in the scheme of the present embodiment, be under the special scenes such as high-speed mobile in terminal 600, will cause little District's switching times or cell reselection number of times are relatively big, thus base station can determine whether according to community switching times or cell reselection number of times Need to change SIB information, to indicate terminal 600 the need of sending SRS.Achieve so that being in the end under some special scenes End can reduce unnecessary SRS transmission times according to the instruction of base station, thus improves transmission stability and spectrum utilization Efficiency.

In the present embodiment, terminal 600 is to present with the form of unit.Here " unit " can refer to application-specific collection Become circuit (application-specific integrated circuit, ASIC), perform one or more software or firmware The processor of program and memorizer, integrated logic circuit, and/or other can provide the device of above-mentioned functions.

It is understood that the function of each functional unit of the terminal 600 of the present embodiment can be according to said method embodiment In method implement, it implements process and is referred to the associated description of said method embodiment, and here is omitted.

See the structural representation that Fig. 7, Fig. 7 are the second embodiments of a kind of terminal that the embodiment of the present invention provides, be used for Realize the disclosed method reducing Sounding Reference Signal transmission times of the embodiment of the present invention.Wherein, this terminal 700 can be wrapped Include: at least one bus 701, at least one processor 702 being connected with bus 701 and be connected with bus 701 at least one Individual memorizer 703.

Wherein, processor 702, by bus 701, calls the code of storage in memorizer and is authorizing frequency range for terminal Or in unauthorized frequency range, receive the system information block SIB information that base station sends；If described SIB information changes, and include using Sending Sounding Reference Signal SRS information in indicating described terminal need not, the most described terminal does not send letter to described base station Road detection reference information SRS；If described SIB information does not changes, then determine whether described base station is sent out based on described SIB information Send described SRS.

Alternatively, in some possible embodiments of the present invention, described processor 702 is additionally operable to:

The configuration index of described SRS, for presetting index value, sends channel detection with reference to letter to indicate described terminal need not Number SRS information.

It can be seen that in the scheme of the present embodiment, be under the special scenes such as high-speed mobile in terminal 700, will cause little District's switching times or cell reselection number of times are relatively big, thus base station can determine whether according to community switching times or cell reselection number of times Need to change SIB information, to indicate terminal 700 the need of sending SRS.Achieve so that being in the end under some special scenes End can reduce unnecessary SRS transmission times according to the instruction of base station, thus improves transmission stability and spectrum utilization Efficiency.

In the present embodiment, terminal 700 is to present with the form of unit.Here " unit " can refer to application-specific collection Become circuit (application-specific integrated circuit, ASIC), perform one or more software or firmware The processor of program and memorizer, integrated logic circuit, and/or other can provide the device of above-mentioned functions.

It is understood that the function of each functional unit of the terminal 700 of the present embodiment can be according to said method embodiment In method implement, it implements process and is referred to the associated description of said method embodiment, and here is omitted.

The embodiment of the present invention also provides for a kind of computer-readable storage medium, and wherein, this computer-readable storage medium can store journey Sequence, this program includes the method reducing Sounding Reference Signal transmission times described in said method embodiment when performing Partly or entirely step.

It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as a series of Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement because According to the present invention, some step can use other orders or carry out simultaneously.Secondly, those skilled in the art also should know Knowing, embodiment described in this description belongs to preferred embodiment, involved action and the module not necessarily present invention Necessary.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has the portion described in detail in certain embodiment Point, may refer to the associated description of other embodiments.

In several embodiments provided herein, it should be understood that disclosed device, can be by another way Realize.Such as, device embodiment described above is only schematically, and the division of the most described unit is only one Logic function divides, actual can have when realizing other dividing mode, the most multiple unit or assembly can in conjunction with or can To be integrated into another system, or some features can be ignored, or does not performs.Another point, shown or discussed each other Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit or communication connection, Can be being electrical or other form.

The described unit illustrated as separating component can be or may not be physically separate, shows as unit The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme 's.

It addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, it is possible to Being that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.

If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit Time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product Embodying, this computer software product is stored in a storage medium, including some instructions with so that a computer Equipment (can be for personal computer, server or the network equipment etc.) perform the whole of method described in each embodiment of the present invention or Part steps.And aforesaid storage medium includes: USB flash disk, read only memory (ROM, Read-Only Memory), random access memory are deposited Reservoir (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. are various can store program code Medium.

The above, above example only in order to technical scheme to be described, is not intended to limit；Although with reference to front State embodiment the present invention has been described in detail, it will be understood by those within the art that: it still can be to front State the technical scheme described in each embodiment to modify, or wherein portion of techniques feature is carried out equivalent；And these Amendment or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims

1. the method reducing Sounding Reference Signal transmission times, it is characterised in that described method includes:

Base station obtains terminal community switching times within a period of time or cell reselection number of times, when described terminal is in a period of time When interior community switching times or cell reselection number of times are less than or equal to predetermined threshold value, what change will be sent to described terminal is System chunk SIB information, described SIB information includes for indicating described terminal to need not send Sounding Reference Signal SRS information, wherein said base station operation is authorizing in frequency range or unauthorized frequency range；

When described terminal community switching times within a period of time or cell reselection number of times are more than predetermined threshold value, not to will The SRS information being sent in the SIB information of described terminal is changed.

Method the most according to claim 1, it is characterised in that described SIB is SIB2.

Method the most according to claim 1 and 2, it is characterised in that described method also includes:

When described terminal community switching times within a period of time or cell reselection number of times are more than or equal to predetermined threshold value, also Judge whether the first communication channel quality between described base station and described terminal meets the first preset channel matter according to described SRS Amount requirement；

If the first communication channel quality between described base station and described terminal is unsatisfactory for presetting the first channel quality requirement, then change Change will be sent to the system information block SIB information of described terminal, and described SIB information includes for indicating described terminal to be not required to Sounding Reference Signal SRS information to be sent；

If the first communication channel quality between described base station and described terminal meets presets the first channel quality requirement, the most right The SRS information will being sent in the SIB information of described terminal is changed.

Method the most according to claim 1, it is characterised in that described change will be sent to the system information of described terminal Block SIB information, described SIB information includes for indicating described terminal to need not send Sounding Reference Signal SRS information, Including:

Change the configuration index of described SRS, send Sounding Reference Signal SRS information to indicate described terminal need not.

5. the method reducing Sounding Reference Signal transmission times, it is characterised in that described method includes:

If described SIB information changes, and include for indicating described terminal to need not send Sounding Reference Signal SRS Information, the most described terminal does not send channel detection reference information SRS to described base station；

Method the most according to claim 5, it is characterised in that described SIB is SIB2.

7. according to the method described in claim 5 or 6, it is characterised in that described method also includes:

If described SIB information does not changes, then determine according to described SIB information described in sending to described base station or not sending SRS。

Method the most according to claim 5, it is characterised in that described SIB information changes, and includes for indicating State terminal to need not send Sounding Reference Signal SRS information, including:

The configuration index of described SRS, for presetting index value, sends Sounding Reference Signal SRS to indicate described terminal need not Information.

9. a base station, it is characterised in that described base station includes:

Change unit, for obtaining terminal community switching times within a period of time or cell reselection number of times, when described terminal When community switching times within a period of time or cell reselection number of times are less than or equal to predetermined threshold value, change will be sent to institute Stating the system information block SIB information of terminal, described SIB information includes for indicating described terminal to need not send channel detection Reference signal SRS information, wherein said base station operation is authorizing in frequency range or unauthorized frequency range；

Stick unit, when described terminal community switching times within a period of time or cell reselection number of times are more than predetermined threshold value Time, the SRS information in the SIB information that will be sent to described terminal is not changed.

Base station the most according to claim 9, it is characterised in that described SIB is SIB2.

11. according to the base station described in claim 9 or 10, it is characterised in that described base station also includes:

Receive unit, for receiving the described SRS that terminal sends in described unauthorized frequency range；

Judging unit, for being more than or equal to when described terminal community switching times within a period of time or cell reselection number of times During predetermined threshold value, judge whether the first communication channel quality between described base station and described terminal meets always according to described SRS First preset channel prescription；

Described change unit, if the first communication channel quality being additionally operable between described base station and described terminal is unsatisfactory for presetting the One channel quality requirement, then change the system information block SIB information that will be sent to described terminal, and described SIB information includes Sounding Reference Signal SRS information is sent for indicating described terminal need not；

Described stick unit, if the first communication channel quality being additionally operable between described base station and described terminal meets presets first Channel quality requirement, is not changed the SRS information in the SIB information that will be sent to described terminal.

12. base stations according to claim 9, it is characterised in that described change unit, are additionally operable to:

13. 1 kinds of terminals, it is characterised in that described terminal includes:

Receive unit, authorizing, for terminal, the system information block SIB information that base station sends that receives in frequency range or unauthorized frequency range；

Transmitting element, if changing for described SIB information, and includes for indicating described terminal to need not transmission channel spy Surveying reference signal SRS information, the most described terminal does not send channel detection reference information SRS to described base station；

Described transmitting element, does not changes if being additionally operable to described SIB information, then determines to described base according to described SIB information Stand and send or do not send described SRS.

14. according to terminal described in claim 13, it is characterised in that described SIB is SIB2.

15. according to terminal described in claim 13 or 14, it is characterised in that described transmitting element is additionally operable to:

Described reception unit is additionally operable to: receive the system information block SIB information that described base station sends；

Described transmitting element is additionally operable to: if described SIB information changes, and includes for indicating described terminal to need not send Sounding Reference Signal SRS information, the most described terminal does not send channel detection reference information SRS to described base station；

Described transmitting element is additionally operable to: if described SIB information does not changes, then determine described base station based on described SIB information Whether send described SRS.

16. terminals according to claim 13, it is characterised in that described SIB information changes, and includes for indicating Described terminal need not send Sounding Reference Signal SRS information, including: