CN103974342A - Method and equipment for SRS (sounding reference signal) network parameter determination - Google Patents

Abstract

The invention discloses a method and equipment for SRS (sounding reference signal) network parameter determination. The method includes: determining an SRS period TSRS according to a user uplink average scheduling period T and channel coherence time T'; according to the SRS period TSRS, SRS uplink transmitting antenna number N and situation of antenna switch opening or closing, determining a period SRS_Period of user SRS traverse system bandwidth; according to the period SRS_Period of the user SRS traverse system bandwidth, uplink user number Uu and SRS equivalent available OFDM (orthogonal frequency division multiplexing) symbolic number, determining SRS code division multiplexing user number x. A determination method for the period of the user SRS traverse system bandwidth and the SRS code division multiplexing user number is provided, and when the period of the user SRS traverse system bandwidth and the SRS code division multiplexing user number which are determined are utilized to compute overhead of uplink resources, accuracy of computed results is high.

Description

A kind of SRS network parameter is determined method and apparatus

Technical field

The present invention relates to communication technical field, especially related to a kind of SRS(Sounding ReferenceSignal, detection reference signal) network parameter determines method and apparatus.

Background technology

In prior art, by the cycle of user SRS Ergodic Theory bandwidth, SRS code division multiplexing number of users, system bandwidth and up every subframe take symbolic number and calculate SRS expense as input, and for TD-LTE(TimeDivision-Long Time Evolution, time-division Long Term Evolution) iterative estimation of system uplink capacity.

Realizing in process of the present invention, inventor finds at least to exist in prior art following problem:

In prior art, the cycle of user SRS Ergodic Theory bandwidth and SRS code division multiplexing number of users are calculated to SRS expense as input, calculate the up-link capacity of TD-LTE system, but do not provide the cycle of user SRS Ergodic Theory bandwidth and the physical planning method of SRS code division multiplexing number of users.

Summary of the invention

The embodiment of the present invention provides a kind of SRS network parameter to determine method and apparatus, to provide the cycle of user SRS Ergodic Theory bandwidth and definite method of SRS code division multiplexing number of users.In order to achieve the above object,

The embodiment of the present invention provides a kind of detection reference signal SRS network parameter to determine method, comprising:

Determine SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS;

According to described SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth;

Determine SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number.

The embodiment of the present invention provides a kind of detection reference signal SRS network parameter to determine equipment, comprising:

The first determination module, for determining SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS;

The second determination module, for according to described SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth;

The 3rd determination module, for determining SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number.

Compared with prior art, the embodiment of the present invention at least has the following advantages: in the embodiment of the present invention, provide the cycle of user SRS Ergodic Theory bandwidth and definite method of SRS code division multiplexing number of users, to configure suitable SRS network parameter; And in the time utilizing the cycle of definite SRS Ergodic Theory bandwidth and the ascending resource expense of SRS code division multiplexing number of users calculating SRS, the accuracy of result of calculation is higher.

Brief description of the drawings

In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is that a kind of SRS network parameter that the embodiment of the present invention one provides is determined method flow schematic diagram;

Fig. 2 is that a kind of SRS network parameter that the embodiment of the present invention two provides is determined device structure schematic diagram.

Embodiment

Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment mono-

In TD-LTE system, uplink SRS reference signal is estimated each user's up channel matrix for base station, due to TDD(Time Division Duplexing, time division duplex) system up-downgoing channel has good reciprocity, and uplink channel estimation value can be used for the each user's of descending calculating wave beam forming vector; Base station can be according to the SRS Signal estimation user's who receives up CQI(Channel Quality Indicator simultaneously, channel quality instruction) value.But due to uplink SRS resource-constrained, the multiplexing SRS resource of mode that certain customers adopt code to divide, have inter-user interference, and the more interference of multiplexing number of users is larger; In addition, user's SRS sends the size in cycle and the selection of running time-frequency resource all will have influence on user's service transmission performance.Therefore for configuring suitable SRS network parameter, the user in current area just seems particularly important.

For this reason, the embodiment of the present invention one provides a kind of SRS network parameter to determine method, and the method can be applied in TD-LTE system, and for determining suitable SRS network parameter; Wherein, this SRS network parameter is specially cycle SRS_Period and the SRS code division multiplexing number of users x of user SRS Ergodic Theory bandwidth.As shown in Figure 1, this SRS network parameter determines that method comprises the following steps:

Step 101, can know based on typical services ratio estimation according to user uplink average dispatching cycle of T() and channel T ' coherence time (can know based on link simulation) determine SRS cycle T _sRS.

In the embodiment of the present invention, determine SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS, specifically include but not limited to following mode: in the time that user uplink average dispatching cycle of T is more than or equal to channel T ' coherence time, think that user does not have business scheduling in channel T ' coherence time, therefore also just there is no SRS demand, now determine SRS cycle T _sRSfor user uplink average dispatching cycle of T; In the time that user uplink average dispatching cycle of T is less than channel T ' coherence time, think that channel variation is slower in channel T ' coherence time, now determine SRS cycle T _sRSfor channel T ' coherence time.

Further, definite mode of user uplink average dispatching cycle of T, specifically comprises: utilizing following formula to calculate user uplink average dispatching cycle of T(unit is ms):

T=Uu/(Num_ULScheduledUsers_Frame/10)；

Wherein, Uu represents up number of users (the up number of users Uu holding obtaining according to up-link capacity estimation), Num_ULScheduledUsers_Frame represents the number of users of single radio frames uplink scheduling, and utilizes following formula to calculate the number of users of single radio frames uplink scheduling:

Num_ULScheduledUsers_Frame=

Num_Schedu ledUsers_ULsubf×Num_Subframe_UL；

Wherein, Num_ScheduledUsers_ULsubf represents that the number of users of single uplink subframe scheduling (is under typical business proportion, the number of users of single uplink subframe scheduling), Num_Subframe_UL represents the sub-frame of uplink number in single radio frames under current configuration (the sub-frame of uplink number under the current configuration that configuration obtains according to ascending-descending subframes in single radio frames).

Describe as an example of typical services model example, the number of users (being Num_ScheduledUsers_ULsubf) that can suppose single uplink subframe scheduling is 12, when ascending-descending subframes configuration ratio is 2:2, sub-frame of uplink number under current configuration in single radio frames is 4 sub-frame of uplink, and the number of users (Num_ULScheduledUsers_Frame) that therefore can obtain single radio frames uplink scheduling is 12*4=48; Further, suppose that the up up number of users Uu holding in current area is 220, can obtain user uplink average dispatching cycle of T is 220/(48/10)=45.83ms.

Further, definite mode of channel T ' coherence time, specifically comprises: determine the channel T ' coherence time under the different translational speeds of user by link simulation.

Concrete, can determine the channel T ' coherence time of terminal up channel under different translational speeds by link simulation, and the correlation of channel can judge by following formula, if following formula meets, can think that channel is within coherence time.

$\frac{E\left({\left|\right|H-H_{\mathrm{avg}}\left|\right|}_F^2\right)}{E\left({\left|\right|H_{\mathrm{avg}}\left|\right|}_F^2\right)}<Q_{\mathrm{Th}};$

In above-mentioned formula, Q _thfor channel relevancy threshold value, it can be determined by empirical value; for the norm (F-norm) of current channel matrix, after matrix element delivery square, be added; H is the channel matrix in a certain moment, H _avgfor initial time is to current time channel mean matrix before.

Step 102, according to SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth.

In the embodiment of the present invention, according to SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth, specifically include but not limited to following mode: if antenna switches unlatching or the situation of closing is that antenna switches unlatching, determine that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is SRS cycle T _sRSthe up number of transmit antennas N of/SRS; If antenna switches unlatching or the situation of closing is that antenna switching is closed, determine that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is SRS cycle T _sRS.

Taking terminal two antennas (the up number of transmit antennas N=2 of SRS) as example, if switching, opens by antenna, the cycle SRS_Period of user SRS Ergodic Theory bandwidth is SRS cycle T _sRS/ 2; Close if antenna switches, the cycle SRS_Period of user SRS Ergodic Theory bandwidth is SRS cycle T _sRS.

Step 103, according to the available OFDM(Orthogonal Frequency Division Multiplexing of the cycle SRS_Period of user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence, OFDM) symbolic number determines SRS code division multiplexing number of users x.

In the embodiment of the present invention, represent the available OFDM symbolic number of single radio frames SRS equivalence by Num_SRS_OFDMSymbol, and Num_SRS_OFDMSymbol configures definite SRS by uplink-downlink configuration and special subframe can use OFDM symbolic number, deduct UpPTS(ascending pilot frequency) upper PRACH(Physical RandomAccess Channel, Physical Random Access Channel) resource that takies obtains.

It should be noted that, in prior art, the UpPTS of the special subframe of regulation TD-LTE system is not used in and sends SRS, and it will cause the part UpPTS resource free time, cause the wasting of resources; And in the embodiment of the present invention, in the time determining SRS code division multiplexing number of users x according to the available OFDM symbolic number of SRS equivalence, can consider the UpPTS of special subframe for sending SRS, configure definite SRS by uplink-downlink configuration and special subframe and can use OFDM symbolic number, deduct the UpPTS resource that above PRACH takies and obtain the available OFDM symbolic number of single radio frames SRS equivalence, thereby in the time of planning SRS network parameter, consider the UpPTS resource of special subframe, make the precision of SRS network parameter higher, avoid the wasting of resources.

In the embodiment of the present invention, determine SRS code division multiplexing number of users x according to the cycle SRS_Period of user SRS Ergodic Theory bandwidth, the available OFDM symbolic number of up number of users Uu, SRS equivalence, specifically include but not limited to following mode: utilize following formula to calculate SRS code division multiplexing number of users x:

Wherein, represent a to round up, x value need to round up.

Concrete, supposing that SRS code division multiplexing number of users is x, can obtain according to the cycle SRS_Period of user SRS Ergodic Theory bandwidth, the available OFDM symbolic number of up number of users Uu, SRS equivalence:

$\frac{1}{2x}\&times;\frac{10}{\mathrm{SRS}\_\mathrm{Period}}\&times;\mathrm{Uu}\&le;\mathrm{Num}\_\mathrm{SRS}\_\mathrm{OFDMSymbol};$

The SRS total resources that are Uu CU should be less than or equal to the resource that can be used for sending SRS in system in a radio frames, wherein 2 represent that SRS odd even sends, and 10 represent the time 10ms that the each radio frames of TDD takies; Further, SRS code division multiplexing number of users x meets following formula:

$x\&GreaterEqual;\frac{5\&times;\mathrm{Uu}}{\mathrm{SRS}\_\mathrm{Period}\&times;\mathrm{Num}\_\mathrm{SRS}\_\mathrm{OFDMSymbol}};$

The minimum value of further, getting SRS code division multiplexing number of users x gets final product:

It should be noted that, because SRS code division multiplexing number of users x is the integer of 1 ~ 8, be greater than 8 if therefore obtain SRS code division multiplexing number of users x, the SRS demand that proves user in community is now large, current wireless frame cannot meet, therefore need to add the cycle SRS_Period of large user SRS Ergodic Theory bandwidth, until till SRS code division multiplexing number of users x=8.

Describe as an example of typical services model example, the cycle SRS_Period that supposes user SRS Ergodic Theory bandwidth is 45.83ms, the up number of users Uu that current area holds is 220, single uplink subframe scheduling number of users is 12, ratio of uplink subframe to downlink subframe is 2:2, an OFDM symbol of special subframe configuration is used for sending UpPTS, it is 1 OFDM symbol that PRACH takies number of resources, can calculate the available OFDM symbolic number Num_SRS_OFDMSymbol of single radio frames SRS equivalence is 5, and utilize above-mentioned formula to calculate SRS code division multiplexing number of users x for to (5*220)/(45.83*5) round up, utilize above-mentioned formula can calculate SRS code division multiplexing number of users x=5.

Step 104, utilizes the cycle SRS_Period of user SRS Ergodic Theory bandwidth and SRS code division multiplexing number of users x to calculate the ascending resource expense of SRS.

In a kind of preferred implementation of the embodiment of the present invention, because being not used in, UpPTS sends PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel) and PUCCH(PhysicalUplink Control Channel, Physical Uplink Control Channel), therefore the upper SRS sending of UpPTS does not affect up-link capacity; Based on this, the cycle SRS_Period of the above-mentioned user of utilization SRS Ergodic Theory bandwidth and SRS code division multiplexing number of users x calculate the ascending resource expense (not comprising UpPTS) of SRS, specifically comprise following mode: utilize following formula to calculate the ascending resource expense of SRS:

Wherein, represent a to round up, the ascending resource expense that R is SRS, the up number of users Ua of the final acquisition of iterative computation of up number of users in substitution planning main-process stream, Uu represents up number of users, R _symbolbe the equivalent PRB(Physical Resource Block that 1 OFDM symbol takies, Physical Resource Block) number, R _upPTSthe Physical Resource Block PRB number taking for sending the UpPTS symbolic equivalent of SRS; And:

$R_{\mathrm{symbol}}=\frac{1}{14}\&times;\mathrm{system}\_\mathrm{PRB}\_\mathrm{Num}\_\mathrm{UL};$

R _UpPTS=R _symbol×(Num_UpPTS_symbol-Num_PRACH_effsymbol)；

Wherein, Num_PRACH_effsymbol is the OFDM symbol numbers that PRACH equivalence takies, and is the given value of input, and Num_UpPTS_symbol is the OFDM symbol numbers that in a radio frames, UpPTS takies, with high-rise sub-frame configuration relating to parameters, it is the given value of input.

In sum, in the embodiment of the present invention, the cycle of user SRS Ergodic Theory bandwidth and definite method of SRS code division multiplexing number of users are provided, to configure suitable SRS network parameter; And in the time utilizing the cycle of definite SRS Ergodic Theory bandwidth and the ascending resource expense of SRS code division multiplexing number of users calculating SRS, the accuracy of result of calculation is higher.

Embodiment bis-

Based on the inventive concept same with said method, in the embodiment of the present invention, also provide a kind of detection reference signal SRS network parameter to determine equipment, as shown in Figure 2, this equipment comprises:

The first determination module 11, for determining SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS;

The second determination module 12, for according to described SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth;

The 3rd determination module 13, for determining SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number.

Described the first determination module 11, specifically in the time that described user uplink average dispatching cycle of T is more than or equal to described channel T ' coherence time, determines described SRS cycle T _sRSfor described user uplink average dispatching cycle of T; In the time that described user uplink average dispatching cycle of T is less than described channel T ' coherence time, determine described SRS cycle T _sRSfor described channel T ' coherence time.

Described the first determination module 11, is further used for utilizing following mode to determine described user uplink average dispatching cycle of T: utilize following formula to calculate described user uplink average dispatching cycle of T:

T=Uu/(Num_ULScheduledUsers_Frame/10)；

Wherein, Uu represents up number of users, and Num_ULScheduledUsers_Frame represents the number of users of single radio frames uplink scheduling, and utilizes following formula to calculate the number of users of single radio frames uplink scheduling:

Num_ULScheduledUsers_Frame=

Num_ScheduledUsers_ULsubf×Num_Subframe_UL；

Wherein, Num_ScheduledUsers_ULsubf represents the number of users of single uplink subframe scheduling, and Num_Subframe_UL represents the sub-frame of uplink number in single radio frames under current configuration.

Described the first determination module 11, is further used for utilizing following mode to determine described channel T ' coherence time: determine the channel T ' coherence time under the different translational speeds of user by link simulation.

Described the second determination module 12, if be that antenna switches unlatching specifically for antenna switching unlatching or the situation of closing, determines that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is described SRS cycle T _sRSthe up number of transmit antennas N of/described SRS;

If antenna switches unlatching or the situation of closing is that antenna switching is closed, determine that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is described SRS cycle T _sRS.

Described the 3rd determination module 13, specifically for utilizing following formula to calculate described SRS code division multiplexing number of users x:

Wherein, represent a to round up, Num_SRS_OFDMSymbol represents the available OFDM symbolic number of single radio frames SRS equivalence, and Num_SRS_OFDMSymbol configures definite SRS by uplink-downlink configuration and special subframe can use OFDM symbolic number, deduct the resource acquisition that the upper Physical Random Access Channel PRACH of ascending pilot frequency UpPTS takies.

This equipment also comprises: computing module 14, and for utilizing the cycle SRS_Period of described user SRS Ergodic Theory bandwidth and described SRS code division multiplexing number of users x to calculate the ascending resource expense of SRS.

Described computing module 14, specifically for utilizing following formula to calculate the ascending resource expense of described SRS:

Wherein, represent a to round up, the ascending resource expense that R is SRS, Uu represents up number of users, R _symbolbe the Equivalent Physical Resource Block PRB number that 1 OFDM symbol takies, R _upPTSthe Physical Resource Block PRB number taking for sending the UpPTS symbolic equivalent of SRS.

In sum, in the embodiment of the present invention, the cycle of user SRS Ergodic Theory bandwidth and definite method of SRS code division multiplexing number of users are provided, to configure suitable SRS network parameter; And in the time utilizing the cycle of definite SRS Ergodic Theory bandwidth and the ascending resource expense of SRS code division multiplexing number of users calculating SRS, the accuracy of result of calculation is higher.

Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.

The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (16)

1. detection reference signal SRS network parameter is determined a method, it is characterized in that, comprising:

Determine SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS;

According to described SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth;

Determine SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number.

2. the method for claim 1, is characterized in that, describedly determines SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS, comprising:

In the time that described user uplink average dispatching cycle of T is more than or equal to described channel T ' coherence time, determine described SRS cycle T _sRSfor described user uplink average dispatching cycle of T;

In the time that described user uplink average dispatching cycle of T is less than described channel T ' coherence time, determine described SRS cycle T _sRSfor described channel T ' coherence time.

3. method as claimed in claim 1 or 2, is characterized in that, definite mode of described user uplink average dispatching cycle of T, specifically comprises:

Utilize following formula to calculate described user uplink average dispatching cycle of T:

T=Uu/(Num_ULScheduledUsers_Frame/10)；

Wherein, Uu represents up number of users, and Num_ULScheduledUsers_Frame represents the number of users of single radio frames uplink scheduling, and utilizes following formula to calculate the number of users of single radio frames uplink scheduling:

Num_ULScheduledUsers_Frame=

Num_Schedu ledUsers_ULsubf×Num_Subframe_UL；

Wherein, Num_ScheduledUsers_ULsubf represents the number of users of single uplink subframe scheduling, and Num_Subframe_UL represents the sub-frame of uplink number in single radio frames under current configuration.

4. method as claimed in claim 1 or 2, is characterized in that, definite mode of described channel T ' coherence time, specifically comprises:

Determine the channel T ' coherence time under the different translational speeds of user by link simulation.

5. the method for claim 1, is characterized in that, described according to described SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined and specifically comprised the cycle SRS_Period of user SRS Ergodic Theory bandwidth:

If antenna switches unlatching or the situation of closing is that antenna switches unlatching, determine that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is described SRS cycle T _sRSthe up number of transmit antennas N of/described SRS;

If antenna switches unlatching or the situation of closing is that antenna switching is closed, determine that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is described SRS cycle T _sRS.

6. the method for claim 1, it is characterized in that, describedly determine SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number, specifically comprise:

Utilize following formula to calculate described SRS code division multiplexing number of users x:

Wherein, represent a to round up, Num_SRS_OFDMSymbol represents the available OFDM symbolic number of single radio frames SRS equivalence, and Num_SRS_OFDMSymbol configures definite SRS by uplink-downlink configuration and special subframe can use OFDM symbolic number, deduct the resource acquisition that the upper Physical Random Access Channel PRACH of ascending pilot frequency UpPTS takies.

7. the method for claim 1, it is characterized in that, describedly determine SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number, also comprise afterwards:

Utilize the ascending resource expense of cycle SRS_Period and the described SRS code division multiplexing number of users x calculating SRS of described user SRS Ergodic Theory bandwidth.

8. method as claimed in claim 7, is characterized in that, the ascending resource expense of described the cycle SRS_Period and the described SRS code division multiplexing number of users x calculating SRS that utilize described user SRS Ergodic Theory bandwidth, specifically comprises:

Utilize following formula to calculate the ascending resource expense of described SRS:

Wherein, represent a to round up, the ascending resource expense that R is SRS, Uu represents up number of users, R _symbolbe the Equivalent Physical Resource Block PRB number that 1 OFDM symbol takies, R _upPTSthe Physical Resource Block PRB number taking for sending the UpPTS symbolic equivalent of SRS.

9. detection reference signal SRS network parameter is determined an equipment, it is characterized in that, comprising:

The first determination module, for determining SRS cycle T according to user uplink average dispatching cycle of T and channel T ' coherence time _sRS;

The second determination module, for according to described SRS cycle T _sRS, the up number of transmit antennas N of SRS, antenna switch and open or the situation of closing is determined the cycle SRS_Period of user SRS Ergodic Theory bandwidth;

The 3rd determination module, for determining SRS code division multiplexing number of users x according to the cycle SRS_Period of described user SRS Ergodic Theory bandwidth, up number of users Uu, SRS equivalence available orthogonal frequency division multiplex OFDM symbolic number.

10. equipment as claimed in claim 9, is characterized in that,

Described the first determination module, specifically in the time that described user uplink average dispatching cycle of T is more than or equal to described channel T ' coherence time, determines described SRS cycle T _sRSfor described user uplink average dispatching cycle of T; In the time that described user uplink average dispatching cycle of T is less than described channel T ' coherence time, determine described SRS cycle T _sRSfor described channel T ' coherence time.

11. equipment as described in claim 9 or 10, is characterized in that,

Described the first determination module, is further used for utilizing following mode to determine described user uplink average dispatching cycle of T: utilize following formula to calculate described user uplink average dispatching cycle of T:

T=Uu/(Num_ULScheduledUsers_Frame/10)；

Wherein, Uu represents up number of users, and Num_ULScheduledUsers_Frame represents the number of users of single radio frames uplink scheduling, and utilizes following formula to calculate the number of users of single radio frames uplink scheduling:

Num_ULScheduledUsers_Frame=

Num_ScheduledUsers_ULsubf×Num_Subframe_UL；

Wherein, Num_ScheduledUsers_ULsubf represents the number of users of single uplink subframe scheduling, and Num_Subframe_UL represents the sub-frame of uplink number in single radio frames under current configuration.

12. equipment as described in claim 9 or 10, is characterized in that,

Described the first determination module, is further used for utilizing following mode to determine described channel T ' coherence time: determine the channel T ' coherence time under the different translational speeds of user by link simulation.

13. equipment as claimed in claim 9, is characterized in that,

Described the second determination module, if be that antenna switches unlatching specifically for antenna switching unlatching or the situation of closing, determines that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is described SRS cycle T _sRSthe up number of transmit antennas N of/described SRS;

If antenna switches unlatching or the situation of closing is that antenna switching is closed, determine that the cycle SRS_Period of user SRS Ergodic Theory bandwidth is described SRS cycle T _sRS.

14. equipment as claimed in claim 9, is characterized in that,

Described the 3rd determination module, specifically for utilizing following formula to calculate SRS code division multiplexing number of users x:

Wherein, represent a to round up, Num_SRS_OFDMSymbol represents the available OFDM symbolic number of single radio frames SRS equivalence, and Num_SRS_OFDMSymbol configures definite SRS by uplink-downlink configuration and special subframe can use OFDM symbolic number, deduct the resource acquisition that the upper Physical Random Access Channel PRACH of ascending pilot frequency UpPTS takies.

15. equipment as claimed in claim 9, is characterized in that, also comprise:

Computing module, for utilizing the cycle SRS_Period of described user SRS Ergodic Theory bandwidth and described SRS code division multiplexing number of users x to calculate the ascending resource expense of SRS.

16. equipment as claimed in claim 15, is characterized in that,

Described computing module, specifically for utilizing following formula to calculate the ascending resource expense of described SRS:

Wherein, represent a to round up, the ascending resource expense that R is SRS, Uu represents up number of users, R _symbolbe the Equivalent Physical Resource Block PRB number that 1 OFDM symbol takies, R _upPTSthe Physical Resource Block PRB number taking for sending the UpPTS symbolic equivalent of SRS.