CN105471772A - Receiving device, and method and system for obtaining channel estimation information - Google Patents

Abstract

The embodiment of the invention provides a receiving device, and method and a system for obtaining channel estimation information, relating to the technical field of communication. When the quantity of sending devices involving multiplexing is large, the channel estimation information between the sending devices and the receiving device is estimated precisely. The scheme comprises a step of obtaining the transmission characteristic parameter of each sending device in X sending devices, a step of determining a demultiplexing method comprising at least two algorithms according to the transmission characteristic parameter of each sending device in the X sending devices, a step of determining the encoding mode of each sending device in the X sending devices according to the demultiplexing method, a step of sending an encoding mode to the X sending devices, a step of receiving a multiplexing signal, a step of using the at least two algorithms comprised in the demultiplexing method to carry out at least two times of analyzing on the multiplexing signal by using an orthogonality principle according to a local reference signal, and obtaining the channel estimation information between each sending device in the X sending devices and the receiving device. The receiving device, the method and the system are used for obtaining the channel estimation information.

Description

The method and system of a kind of receiving system, acquisition channel-estimation information

Technical field

The present invention relates to communication technical field, particularly relate to a kind of receiving system, obtain the method and system of channel-estimation information.

Background technology

Along with the fast development of wireless communication technology, in order to improve transmission rate and the spectrum efficiency of wireless communication system, multiple-input and multiple-output (Multiple-InputMultiple-Output, being called for short MIMO) technology is widely used in Long Term Evolution (LongTermEvolution, be called for short LTE) as in the 4G system of representative; MIMO technology utilizes multiple antennas of transmitting terminal independently to send signal separately, to receive with multiple antenna at receiving terminal simultaneously and recover original signal.

Along with the change of user behavior mode, use subscriber equipment (UserEquipment the is called for short UE) demand such as uploading pictures, video to get more and more, cause the increase in demand to up-link capacity like this; In order to MIMO technology adapts to this demand, but be generally equipped with single antenna due to the UE as dispensing device, industry proposes virtual multiple-input and multiple-output (VirtualMultiple-InputMultiple-Output, be called for short VMIMO) technology, namely multiple UE of single antenna that is equipped with is by multiplexing, form the communication system that virtual multiple antennas sends and multiple antennas receives, the inherent different UE physically in same community uses identical resource to send signal simultaneously.

In VMIMO technology, participate in each multiplexing UE when taking identical/frequency resource and send respective signal, the transmission signal space of each UE is multiplexing; The receiving system communicated with UE, in order to obtain the signal from each UE more accurately, needs to determine multiplexing method and adopts the Deplexing method corresponding with multiplexing method to estimate the channel-estimation information between each UE and receiving system.

At present, the Deplexing method that can adopt comprises: cyclic shift (cyclicshift, be called for short CS) algorithm, orthogonal covering codes (OrthogonalCoverCode, being called for short OCC) algorithm, smooth frequency domain (FlatFrequency, be called for short FF) algorithm, CS is in conjunction with OCC algorithm.

But, estimate that using above-mentioned Deplexing method, in the process of channel-estimation information, inventor finds to there is following defect or constraint:

CS theory of algorithm can be supported 8 UE's is multiplexing, but CS algorithm requires that the bandwidth of the multiplexing resource of UE transmission shared by signal and position overlap completely, and the number participating in multiplexing UE more time (generally more than 4), the precision of this algorithm to channel estimating is low;

OCC algorithm only supports third generation partner program (3rdGenerationPartnershipProject, be called for short 3GPP) two UE of Release10 and above version multiplexing, and low speed environments (translational speed as UE is less than 3Km/h) can only be used for;

FF algorithm utilizes channel in coherence bandwidth to be similar to stable characteristic to distinguish UE, and namely FF algorithm can only be used for distinguishing UE and sends the subcarrier spacing of resource shared by signal and be less than the UE that UE sends the coherence bandwidth of resource shared by signal;

CS, in conjunction with OCC algorithm, although can improve the precision to channel estimating, can not eliminate the shortcoming of OCC algorithm.

From upper analysis, when the quantity participating in multiplexing dispensing device (such as: UE) is more, in prior art, effective Deplexing method can not estimate the channel-estimation information between dispensing device and receiving system accurately.

Summary of the invention

The embodiment of the present invention provides a kind of receiving system, obtains the method and system of channel-estimation information, achieves when the quantity participating in multiplexing dispensing device is more, can estimate the channel-estimation information between dispensing device and receiving system accurately.

For achieving the above object, the technical scheme that the embodiment of the present invention adopts is:

First aspect, provides a kind of receiving system, comprising:

Acquiring unit, for obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; Described X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that described receiving system is supported;

Determining unit, for the transmission feature parameter of each dispensing device in described X dispensing device obtaining according to described acquiring unit, determines Deplexing method; Wherein, described Deplexing method comprises at least two kinds of algorithms;

Described determining unit also for, according to described Deplexing method, determine the coded system of each dispensing device in a described X dispensing device;

Transmitting element, for sending coded system to described X dispensing device;

Receiving element, for receiving multiplexed signals; Wherein, described multiplexed signals comprise respectively from a described X dispensing device reference signal and with the time-multiplexed data-signal of described reception reference signal;

Demultiplexing unit, for according to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting described Deplexing method to comprise carry out at least twice parsing to described multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in a described X dispensing device.

In conjunction with first aspect, in the first possible implementation of first aspect, described transmission feature parameter comprises the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed.

In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second of first aspect is possible, described determining unit specifically for:

According to the transmission feature parameter of each dispensing device in a described X dispensing device, pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group; Wherein, described M is more than or equal to 2;

According to the transmission feature parameter of described M dispensing device group and described pre-conditioned group, determine described Deplexing method;

Wherein, described pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

In conjunction with the implementation that the second of first aspect is possible, in the third possible implementation of first aspect, described determining unit specifically for:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets second pre-conditioned, described M is less than or equal to O, determine that described Deplexing method is the algorithm first adopting described second pre-conditioned correspondence, then adopt the algorithm of described first pre-conditioned correspondence respectively;

Wherein, described first pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described second pre-conditioned pre-conditioned for being different from described first pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described second pre-conditioned correspondence is supported.

The third possible implementation of the implementation possible in conjunction with the second of first aspect or first aspect, in the 4th kind of possible implementation of first aspect, described determining unit specifically for:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets the 4th pre-conditioned, described M is greater than described O, is N number of dispensing device set by described M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between described N number of dispensing device set meets the 5th pre-conditioned, described N is less than or equal to described P, determine that described Deplexing method is the algorithm first adopting described 5th pre-conditioned correspondence, adopt the algorithm of described 4th pre-conditioned correspondence more respectively, then adopt the algorithm of described 3rd pre-conditioned correspondence respectively;

Wherein, described 3rd pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 4th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned any one in described pre-conditioned group; Described 5th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned and described 4th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that described P is less than or equal to described 5th pre-conditioned correspondence is supported.

In conjunction with the possible implementation of the second of first aspect to first aspect the 4th kind of possible implementation any one of, in the 5th kind of possible implementation of first aspect, described determining unit specifically for:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in described M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between described M dispensing device group meets the 8th pre-conditioned, described M is less than or equal to Q, determine that described Deplexing method is the algorithm first adopting described 8th pre-conditioned correspondence, then adopt the algorithm of described 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, described 6th pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 7th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned any one in described pre-conditioned group; Described 8th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned and described 7th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described Q is less than or equal to described 8th pre-conditioned correspondence is supported.

In conjunction with the 4th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect, described determining unit also for:

If described N is greater than described P, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described P to make described N.

In conjunction with the 5th kind of possible implementation of first aspect, in the 7th kind of possible implementation of first aspect, described determining unit also for:

If described M is greater than described Q, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described Q to make described M.

In conjunction with first aspect or first aspect the first possible implementation to first aspect the 7th kind of possible implementation any one of, in the 8th kind of possible implementation of first aspect, described transmission feature parameter also comprises:

Send the coherence bandwidth of the resource shared by signal;

Accordingly, described first predetermined threshold value is for sending the coherence bandwidth of the resource shared by signal.

In conjunction with first aspect or first aspect the first possible implementation to first aspect the 8th kind of possible implementation any one of, in the 9th kind of possible implementation of first aspect, described transmitting element specifically for:

According to the coded system of each dispensing device described, obtain respectively and preset in corresponding relation, the mark of the coded system that the coded system of each dispensing device described is corresponding; The mark of the coded system that the coded system of each dispensing device is corresponding described in sending to described X dispensing device; Wherein, described default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with described coded system;

Or,

The coded system of each dispensing device described is sent to described X dispensing device.

Second aspect, provides a kind of method obtaining channel-estimation information, comprising:

Obtain the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; Described X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that described receiving system is supported;

According to the transmission feature parameter of each dispensing device in a described X dispensing device, determine Deplexing method; Wherein, described Deplexing method comprises at least two kinds of algorithms;

According to described Deplexing method, determine the coded system of each dispensing device in a described X dispensing device;

Coded system is sent to described X dispensing device;

Receive multiplexed signals; Wherein, described multiplexed signals comprise respectively from a described X dispensing device reference signal and with the time-multiplexed data-signal of described reception reference signal;

According to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting described Deplexing method to comprise carry out at least twice parsing to described multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in a described X dispensing device.

In conjunction with second aspect, in the first possible implementation of second aspect, described transmission feature parameter comprises the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed.

In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second of second aspect is possible, the described transmission feature parameter according to each dispensing device in a described X dispensing device, determine Deplexing method, comprising:

According to the transmission feature parameter of each dispensing device in a described X dispensing device, pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group; Wherein, described M is more than or equal to 2;

According to the transmission feature parameter of described M dispensing device group and described pre-conditioned group, determine described Deplexing method;

Wherein, described pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

In conjunction with the implementation that the second of second aspect is possible, in the third possible implementation of second aspect, the described transmission feature parameter according to described M dispensing device group and described pre-conditioned group, determine described Deplexing method, comprising:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets second pre-conditioned, described M is less than or equal to O, determine that described Deplexing method is the algorithm first adopting described second pre-conditioned correspondence, then adopt the algorithm of described first pre-conditioned correspondence respectively;

Wherein, described first pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described second pre-conditioned pre-conditioned for being different from described first pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described second pre-conditioned correspondence is supported.

The third possible implementation of the implementation possible in conjunction with the second of second aspect or second aspect, in the 4th kind of possible implementation of second aspect, the described transmission feature parameter according to described M dispensing device group and described pre-conditioned group, determine described Deplexing method, comprising:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets the 4th pre-conditioned, described M is greater than described O, is N number of dispensing device set by described M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between described N number of dispensing device set meets the 5th pre-conditioned, described N is less than or equal to described P, determine that described Deplexing method is the algorithm first adopting described 5th pre-conditioned correspondence, adopt the algorithm of described 4th pre-conditioned correspondence more respectively, then adopt the algorithm of described 3rd pre-conditioned correspondence respectively;

Wherein, described 3rd pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 4th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned any one in described pre-conditioned group; Described 5th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned and described 4th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that described P is less than or equal to described 5th pre-conditioned correspondence is supported.

In conjunction with the possible implementation of the second of second aspect to second aspect the 4th kind of possible implementation any one of, in the 5th kind of possible implementation of second aspect, the described transmission feature parameter according to described M dispensing device group and described pre-conditioned group, determine described Deplexing method, comprising:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in described M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between described M dispensing device group meets the 8th pre-conditioned, described M is less than or equal to Q, determine that described Deplexing method is the algorithm first adopting described 8th pre-conditioned correspondence, then adopt the algorithm of described 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, described 6th pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 7th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned any one in described pre-conditioned group; Described 8th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned and described 7th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described Q is less than or equal to described 8th pre-conditioned correspondence is supported.

In conjunction with the 4th kind of possible implementation of second aspect, in the 6th kind of possible implementation of second aspect, described method also comprises:

If described N is greater than described P, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described P to make described N.

In conjunction with the 5th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect, described method also comprises:

If described M is greater than described Q, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described Q to make described M.

In conjunction with second aspect or second aspect the first possible implementation to second aspect the 7th kind of possible implementation any one of, in the 8th kind of possible implementation of second aspect, described transmission feature parameter also comprises:

Send the coherence bandwidth of the resource shared by signal;

Accordingly, described first predetermined threshold value is for sending the coherence bandwidth of the resource shared by signal.

In conjunction with second aspect or second aspect the first possible implementation to second aspect the 8th kind of possible implementation any one of, in the 9th kind of possible implementation of second aspect, described to described X dispensing device transmission coded system, comprising:

According to the coded system of each dispensing device described, obtain respectively and preset in corresponding relation, the mark of the coded system that the coded system of each dispensing device described is corresponding; The mark of the coded system that the coded system of each dispensing device is corresponding described in sending to described X dispensing device; Wherein, described default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with described coded system;

Or,

The coded system of each dispensing device described is sent to described X dispensing device.

The third aspect, provides a kind of system of obtaining information estimated information, comprising:

X dispensing device;

Receiving system as described in first aspect or any one possible implementation above-mentioned.

The embodiment of the present invention provides a kind of receiving system, obtains the method and system of channel-estimation information, by obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported; According to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method; Wherein, Deplexing method comprises at least two kinds of algorithms; According to Deplexing method, determine the coded system of each dispensing device in X dispensing device; Coded system is sent to X dispensing device; Receive multiplexed signals; Wherein, multiplexed signals comprise respectively from X dispensing device reference signal and with reception reference signal time-multiplexed data-signal; According to local reference signal, utilize orthogonality principle, at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.So, because the Deplexing method determined according to the multiple transmission feature parameters participating in X multiplexing dispensing device at least comprises two kinds of algorithms, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals and obtain channel-estimation information, make when the quantity participating in multiplexing dispensing device is more, the Deplexing method determined is high with the quantity and transmission feature parameter matching degree participating in multiplexing dispensing device, and the combination of at least two kinds of algorithms has played the advantage of various algorithm, can more in the quantity participating in multiplexing dispensing device time still can estimate between dispensing device and receiving system channel-estimation information accurately, solve in prior art, when the quantity participating in multiplexing dispensing device is more, do not have effective Deplexing method can estimate the defect of the channel-estimation information between dispensing device and receiving system accurately.

Accompanying drawing explanation

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

Fig. 1 provides the schematic diagram of the implementation procedure of VMIMO technology for the embodiment of the present invention;

A kind of receiving system structural representation that Fig. 2 provides for the embodiment of the present invention;

A kind of method flow schematic diagram obtaining channel-estimation information that Fig. 3 provides for the embodiment of the present invention;

The method flow schematic diagram of the another kind acquisition channel-estimation information that Fig. 4 provides for the embodiment of the present invention;

The another kind of receiving system structural representation that Fig. 5 provides for the embodiment of the present invention;

A kind of system configuration schematic diagram obtaining channel-estimation information that Fig. 6 provides for the embodiment of the present invention.

Embodiment

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

Under the application scenarios of VMIMO technology, take dispensing device as UE, receiving system is base station is example, see Fig. 1, is described the implementation procedure of VMIMO technology:

When S101, UE initiate business, to base station transmission request information;

After S102, base station receive the solicited message that in preset duration, UE sends, determine to participate in multiplexing UE by scheduling and distribute the resource sending signal for the UE that the participation determined is multiplexing;

Wherein, base station is determined to participate in multiplexing UE by scheduling and is distributed the resource sending signal for the multiplexing UE of the participation determined, specifically can comprise:

Steps A, number of users, channel capacity, the channel utilization multiplexing according to the participation of the maximum support in base station, in preset duration transmission request information UE to select X UE to participate in multiplexing;

Wherein, X is less than or equal to the maximum support users multiplexing quantity of system;

Preset duration is the preset duration of Millisecond; Such as, preset duration can be 1 millisecond, and preset duration can set according to the actual requirements;

Step B, base station are that X the UE selected in steps A distributes the resource sending signal;

Wherein, send the resource of signal can include but not limited to: the subcarrier spacing of the bandwidth of resource and position, resource.

Base station is the resource of the transmission signal that X UE distributes, and the signal that this X UE is sent carries out multiplexing in space.

The resource of the transmission signal distributed for X UE is sent to UE by S103, base station respectively.

So far, base station side completes scheduling, and UE side gets the resource sending signal demand and take.

After S103, X base station selected UE adopts the resource of the transmission signal of base station assigns to send data-signal and reference signal to base station, and the signal of X UE transmission arrives base station and realizes communication after spatial reuse; In this communication process, one end of communication is the base station of multiple antennas, and the other end is participate in multiplexing X single antenna UE (can see as virtual the UE with multiple antennas), so just achieves VMIMO technology; By VMIMO technology, transmission rate and the spectrum efficiency of UE and base station communication can be improved.

Embodiment one

The embodiment of the present invention one provides a kind of receiving system 20, receiving system 20 can be the part or all of of base station, see Fig. 2, receiving system 20 can comprise: acquiring unit 201, determining unit 202, transmitting element 203, receiving element 204 and demultiplexing unit 205.

Wherein, acquiring unit 201, for obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported;

It should be noted that, dispensing device can be the part or all of of UE;

Also it should be noted that, quantity generally maximum reception antenna number being no more than receiving system 20 of the multiplexing transmitter that receiving system 20 is supported; Meanwhile, the quantity of the multiplexing transmitter that receiving system 20 is supported can also be subject to the impact of other factors, such as, dispatching algorithm in communication process, Baseband algorithms etc.The determination mode of the quantity of the multiplexing transmitter that the present invention supports for receiving system 20 does not specifically limit.

Preferably, transmission feature parameter can comprise the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed;

Concrete, acquiring unit 201 obtains the transmission feature parameter participating in X multiplexing dispensing device and specifically can comprise:

1, for the obtain manner of the subcarrier spacing of the resource shared by the bandwidth of the resource sent shared by signal and position, transmission signal:

Because these two parameters are distributed by receiving system 20 in the process of scheduling (S102), therefore, acquiring unit 201 directly can obtain this two parameters in receiving system 20.

Such as, can by the resource conservation of the transmission signal of distribution in this locality in S102, acquiring unit 201 directly obtains by reading local data.

2, for the obtain manner of Release version: can be sent by dispensing device, for notifying the announcement information of its Release version, the Release version of dispensing device is obtained; It should be noted that, the announcement information for notifying self Release version that dispensing device sends, can send in the moment of presetting (such as sending when sending a request message), also can send after dispensing device receives the announcement information of the Release version for send-request unit that receiving system 20 sends, the moment for the announcement information notifying self Release version that the present invention sends for dispensing device does not specifically limit.

Wherein, described announcement information can be the form of signaling, also can be the form of message; The present invention does not specifically limit for the form of announcement information.When described notification message is signalling format, can be the signaling of existing existence, can be also newly-installed signaling, the present invention also specifically limit for the type of the signaling of notification message.

3, the obtain manner for translational speed can include but not limited to following two kinds of modes:

First kind of way, acquiring unit 201 obtain the translational speed of dispensing device by survey calculation;

Optionally, the solicited message that acquiring unit 201 sends by measuring dispensing device, calculates the translational speed obtaining dispensing device; Certainly, acquiring unit 201 also by measuring other signals of the dispensing device transmission received, can calculate the translational speed obtaining dispensing device; Reference information when the present invention obtains the translational speed of dispensing device for acquiring unit 201 by survey calculation does not specifically limit.

Such as, the solicited message of the dispensing device 1 that receiving system 20 receives before scheduling, utilize the estimated result of reference signal channel, obtain the zeroth order bessal function about Doppler frequency shift by cross-correlation, estimate due to the mobile Doppler frequency shift brought, then fd=fc × v/c is utilized to obtain the translational speed of this user, wherein, fd is Doppler frequency shift, and fc is system carrier centre frequency, v is translational speed, and c is the light velocity.

The second way, acquiring unit 201 are sent by transmission and reception apparatus, for notifying that the announcement information of its translational speed obtains the translational speed of dispensing device;

Wherein, described announcement information can be the form of signaling, also can be the form of message; The present invention does not specifically limit for the form of announcement information.When described notification message is signalling format, can be the signaling of existing existence, can be also newly-installed signaling, the present invention also specifically limit for the type of the signaling of notification message.

Further, transmission feature parameter can also comprise the coherence bandwidth that dispensing device sends the resource shared by signal;

Wherein, coherence bandwidth refers to that dispensing device sends the inverse of the multidiameter delay of the resource shared by signal; Any two frequency components in coherence bandwidth all have very strong amplitude dependency; In coherence bandwidth, multipath channel has constant gain and linear phase, and the subcarrier spacing of the resource even shared by dispensing device transmission information is less than coherence bandwidth, then the channel approximately equal on the subcarrier shared by dispensing device transmission information.

The obtain manner of acquiring unit 201 to the coherence bandwidth participating in resource shared by X multiplexing dispensing device transmission signal is specially: obtain by survey calculation the coherence bandwidth that dispensing device sends resource shared by signal;

Optionally, the solicited message that acquiring unit 201 sends by measuring dispensing device, calculates and obtains the coherence bandwidth that dispensing device sends resource shared by signal; Certainly, acquiring unit 201 also can pass through other signals measuring the dispensing device transmission received, the coherence bandwidth of resource shared by the transmission signal of calculating acquisition dispensing device; The reference information that the present invention is obtained when dispensing device sends the coherence bandwidth of resource shared by signal by survey calculation for acquiring unit 201 does not specifically limit.

Such as, the solicited message of the dispensing device 2 that receiving system 20 receives before scheduling, utilizes the estimated result of reference signal channel, estimates multidiameter delay spectrum, utilizes the inverse of maximum multipath time delay to obtain the coherence bandwidth of system.

It should be noted that, being only obtain manner the present invention of above-mentioned all transmission feature parameters and illustrating, is not the concrete restriction to obtain manner.

Determining unit 202, for the transmission feature parameter according to each dispensing device in described X dispensing device of described acquiring unit 201 acquisition, determines Deplexing method; Wherein, described Deplexing method comprises at least two kinds of algorithms;

Wherein, algorithm can comprise CS algorithm, FF algorithm and OCC algorithm, and each algorithm has the service condition of its correspondence, when only having the transmission feature parameter of dispensing device to meet service condition corresponding to algorithm, this algorithm could be used to carry out demultiplexing to the signal that dispensing device sends, and then obtain the channel-estimation information between dispensing device and receiving system; Concrete, the service condition that each algorithm is corresponding specifically can comprise:

The service condition that condition 1, CS algorithm is corresponding: the bandwidth and the position that send the resource that signal takies overlap completely;

Namely meeting to send between the bandwidth of resource that signal takies and the dispensing device that position overlaps completely to adopt CS algorithm to carry out demultiplexing

The service condition that condition 2, FF algorithm is corresponding: the interval sending the subcarrier of the resource that signal takies is less than or equal to the first predetermined threshold value;

Namely meeting between dispensing device that the interval sending the subcarrier of resource that signal takies is less than or equal to the first predetermined threshold value to adopt CS algorithm to carry out demultiplexing.

Wherein, the first predetermined threshold value can according to actual set, and the present invention does not limit for the value of the first predetermined threshold value.

Preferably, the first predetermined threshold value is the correlation bandwidth that dispensing device sends the resource that signal takies; When subcarrier spacing is less than coherence bandwidth, the channel approximately equal on subcarrier.

The service condition that condition 3, OCC algorithm is corresponding: translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10;

Namely meet translational speed be less than or equal to the second predetermined threshold value and version be equal to or higher than Release10 dispensing device between OCC algorithm can be adopted to carry out demultiplexing.

Wherein, the translational speed of dispensing device can produce Doppler frequency shift, only has when Doppler frequency shift hour, OCC algorithm can be used to carry out multiplexing between dispensing device; In order to make can to use OCC algorithm between dispensing device, the translational speed of dispensing device needs to be less than the second predetermined threshold value, and the second predetermined threshold value can be arranged according to the actual needs, and the present invention does not limit for the value of the second predetermined threshold value;

Preferably, the second predetermined threshold value is 3Km/h.

Optionally, determining unit 202 specifically may be used for determining Deplexing method by performing following two steps (steps A and step B):

Steps A, the quantity of dispensing device supported according to the algorithm of the transmission feature parameter of each dispensing device in X dispensing device, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising, be divided into M dispensing device group by X dispensing device; Wherein, M is more than or equal to 2;

Wherein, pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

It should be noted that, pre-conditioned group comprise at least two pre-conditioned, a kind of algorithm of each pre-conditioned correspondence, each algorithm has the quantity of dispensing device that this algorithm is supported; Namely, time by algorithm demultiplexing, if the quantity participating in multiplexing dispensing device is less than or equal to the quantity of the dispensing device that self supports, the effect of demultiplexing is best; The quantity of the dispensing device that the algorithm of the pre-conditioned group of pre-conditioned correspondence of each comprising is supported, can according to the actual requirements and the characteristic of algorithm determine, the present invention does not specifically limit this.

Step B, according to the transmission feature parameter of M dispensing device group and pre-conditioned group, determine Deplexing method;

Concrete, the implementation of step B can have following three kinds of situation: ÷

The first situation:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in M dispensing device group, transmission feature parameter between described M dispensing device group meets second pre-conditioned, described M is less than or equal to O, determine that described Deplexing method is the algorithm first adopting described second pre-conditioned correspondence, then adopt the algorithm of described first pre-conditioned correspondence respectively.

Wherein, first pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Second is pre-conditioned pre-conditioned for being different from the first pre-conditioned any one in pre-conditioned group; The quantity of the dispensing device that the algorithm that O is less than or equal to the second pre-conditioned correspondence is supported.

The second situation:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets the 4th pre-conditioned, described M is greater than described O, is N number of dispensing device set by described M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between described N number of dispensing device set meets the 5th pre-conditioned, described N is less than or equal to described P, determine that described Deplexing method is the algorithm first adopting described 5th pre-conditioned correspondence, adopt the algorithm of described 4th pre-conditioned correspondence more respectively, then adopt the algorithm of described 3rd pre-conditioned correspondence respectively;

Wherein, described 3rd pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 4th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned any one in described pre-conditioned group; Described 5th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned and described 4th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that described P is less than or equal to described 5th pre-conditioned correspondence is supported.

The third situation:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in described M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between described M dispensing device group meets the 8th pre-conditioned, described M is less than or equal to Q, determine that described Deplexing method is the algorithm first adopting described 8th pre-conditioned correspondence, then adopt the algorithm of described 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, described 6th pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 7th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned any one in described pre-conditioned group; Described 8th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned and described 7th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described Q is less than or equal to described 8th pre-conditioned correspondence is supported.

Further, determining unit 202 is in the process of the second situation determination Deplexing method by above-mentioned steps A and step B, may exist unreasonable because of what divide into groups, cause determining suitable Deplexing method, now, grouping can be re-started, to make to determine suitable Deplexing method, therefore, determining unit 202 can also be used for:

If described N is greater than described P, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described P to make described N.

Further, determining unit 202 is in the process of the third situation determination Deplexing method by above-mentioned steps A and step B, may exist unreasonable because of what divide into groups, cause determining suitable Deplexing method, now, grouping can be re-started, to make to determine suitable Deplexing method, therefore, determining unit 202 can also be used for:

If described M is greater than described Q, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described Q to make described M.

Further, described determining unit 202 can also be used for, and according to Deplexing method, determines the coded system of each dispensing device in a described X dispensing device;

It should be noted that, the Deplexing method that determining unit 202 is determined comprises at least two kinds of algorithms, because each algorithm has the coded system of its correspondence, so Deplexing method has the coded system of its correspondence, therefore, determining unit 202 can be that each participates in multiplexing dispensing device determination coded system according to the Deplexing method determined.

Concrete, the coded system that CS algorithm is corresponding is cyclic shift coding, and the coded system that OCC algorithm is corresponding is [1,1] coding or [1 ,-1] coding, the coded system that FF algorithm is corresponding is [1,1] or [1 ,-1] or [-1,1] coding.

It should be noted that, cyclic shift coding adopts cyclic shift parameter characterization, cyclic shift parameter is used to indicate the phase rotating of reference signal sequence relative to basic sequence of the multiplexing each dispensing device of participation, as long as cyclic shift parameter ensures that participating in multiplexing dispensing device adopts different cyclic shift parameters.

Preferably, in order to ensure channel estimating performance, cyclic shift parameter need ensure that the frequency domain phase intervals between the dispensing device that participation is multiplexing is maximum or the poor resolution that is maximum or CS algorithm of code domain is maximum, and for the value of concrete cyclic shift parameter, the present invention does not limit.

Also it should be noted that, the cyclic shift parameter determined and the corresponding relation participating in multiplexing each dispensing device, can choose arbitrarily, the present invention does not also specifically limit this.

Also it should be noted that, the coded system that OCC algorithm is corresponding is [1,1] or [1 ,-1], can choose arbitrarily, but need ensure to participate in the coded system difference of the OCC algorithm of the identical dispensing device of cyclic shift that in the coded system of multiplexing X dispensing device, CS algorithm is corresponding; And the CS cyclic shift parameter specifying to have standard OCC encoding function due to agreement only has 3,6,8,10 4 kind, the ultimate resolution now can carrying out the CS of OCC coding is 1/4th, in order to promote the resolution of OCC coding to CS, can modify to standard OCC coding, increase the CS displacement with non-standard OCC encoding function: 0,4,2,9 four kind, the ultimate resolution now can carrying out the CS of OCC coding is 1/2nd: the present invention does not specifically limit this.

It should be noted that, the CS shift parameters specifying to have OCC encoding function due to agreement only has 3,6,8,10 4 kind, due to the constraint of FF, optimally, Deplexing method be CS algorithm in conjunction with FF algorithm time, group in CS get 6 and 10, namely CS resolution is (10-6)/12=1/3, during demultiplexing, coherence bandwidth meets the channel approximately equal on an adjacent 1+3n subcarrier, optimally n=1.

Also it should be noted that, the coded system that FF algorithm is corresponding is [1,1] or [1,-1] or [-1,1], can choose arbitrarily, but when needing utility FF demultiplexing, the matrix be made up of reference signal or its conjugate complex number is nonsingular, and the present invention does not specifically limit this.

Exemplary, suppose, 5 dispensing devices participate in multiplexing, and 5 multiplexing dispensing devices of participation are designated as UE1, UE2, UE3, UE4 and UE5 respectively; 5 dispensing devices are divided into M=2 dispensing device group by determining unit 202, UE1, UE2 and UE3 are as the first dispensing device group, UE4 and UE5 is as the second dispensing device group, determine that Deplexing method is: first adopt OCC algorithm, adopt CS algorithm respectively again, namely first adopt OCC algorithm to obtain the channel-estimation information median of the first dispensing device group, the second dispensing device group, then adopt CS algorithm to obtain the channel-estimation information of 5 dispensing devices to receiving system 20 to the channel-estimation information median of the first dispensing device group, the second dispensing device group respectively;

So, according to above-mentioned hypothesis, determining unit 202, according to Deplexing method, is determined the coded system participating in 5 multiplexing dispensing devices, is specifically comprised:

OCC coding is carried out to the first transmission group (UE1, UE2, UE3), is encoded to [1,1], OCC coding is carried out to the second transmission group (UE4 and UE5), is encoded to [1 ,-1].

CS coding is carried out to UE1, UE2 and UE3, namely respectively cyclic shift is carried out to UE1, UE2, UE3, make CS between UE1, UE2, UE3 differ 4;

CS coding is carried out to UE4 and UE5, namely respectively cyclic shift is carried out to UE4 and UE5, make UE4 and UE5 differ 6.

Transmitting element 203, for sending coded system to described X dispensing device;

Optionally, transmitting element 203 specifically can send coded system by following two kinds of modes to described X dispensing device:

First kind of way:

According to the coded system of each dispensing device, obtain respectively and preset in corresponding relation, the mark of the coded system that the coded system of each dispensing device is corresponding;

The mark of the coded system that the coded system sending each dispensing device to X dispensing device is corresponding; Wherein, default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with coded system.

Wherein, default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with coded system; The coded system that this default corresponding relation comprises can be the coded system that all possible multiplexing method is corresponding; The mark of the coded system that this default corresponding relation comprises can be used for unique sequence number distinguishing coded system in default corresponding relation; The particular content presetting corresponding relation can be arranged according to actual needs, and the present invention does not specifically limit this.

Exemplary, default corresponding relation can be stored in receiving system 20 and dispensing device in a tabular form, and can certainly be stored in receiving system 20 and dispensing device with other forms, the present invention does not specifically limit for the form of default corresponding relation;

See table 1, signal is a kind of presets corresponding relation; It should be noted that, table 1 just illustrates in exemplary fashion presets corresponding relation, is not the restriction of the form to default corresponding relation.

Table 1

Coded system identifies	Coded system
		1	Coded system 1
2	Coded system 2
		3	Coded system 3
4	Coded system 4
		……	……
n	Coded system n

Wherein, obtain and preset in corresponding relation, participate in the mark of coded system corresponding to the coded system of each dispensing device in X multiplexing dispensing device, can be obtain by inquiring about or travel through default corresponding relation, certainly, also other mode can be taked to obtain, and the present invention presets in corresponding relation for acquisition, and the concrete mode participating in the mark of coded system corresponding to the coded system of each dispensing device in a multiplexing X dispensing device does not limit.

The second way: the coded system sending each dispensing device to X dispensing device.

Optionally, from above-mentioned two kinds of modes, the mark of coded system or coded system can be sent to X dispensing device by transmitting element 203, transmitting element 203 is sent to the concrete grammar of the mark of coded system or coded system, can adopt but be not limited to following two kinds of methods:

First method: point-to-point transmission;

Concrete, point-to-point transmission refers to that determining unit 202 be the mark of coded system corresponding to the coded system determined of each dispensing device in multiplexing X the dispensing device of participation or coded system by transmitting element 203 respectively, sends to corresponding dispensing device; Such as, the mark of the coded system that determining unit 202 is determined for UE1 by transmitting element 203 or coded system corresponding to coded system, send to UE1, the mark of the coded system that determining unit 202 is determined for UE2 by transmitting element 203 or coded system corresponding to coded system, send to UE2, etc.

Wherein, the mark of coded system or coded system can be sent to corresponding dispensing device by transmitting element 203 in form of a message respectively, and certainly, the form of signaling or other mode also can be adopted to send, and the present invention does not limit this.

Exemplary, suppose that determining unit 202 be the coded system that dispensing device 4 is determined is coded system 4, the default corresponding relation of transmitting element 203 according to determining unit 202 and table 1, the coded system that question blank 1 obtains coded system 4 correspondence is designated " 4 ", then send to dispensing device 4 and comprise the notification message 1 that coded system is designated " 4 "; Owing to also stores the default corresponding relation shown in table 1 in dispensing device 4, when after the notified message 1 of dispensing device 4, be designated " 4 " according to the coded system comprised in notification message 1, default corresponding relation shown in question blank 1, then the coded system that can obtain oneself is the coded system 4 of coded system mark " 4 " correspondence.

The second form: broadcast transmission;

Concrete, broadcast transmission refers to, determining unit 202 is participate in coded system that each dispensing device in multiplexing X dispensing device determines or X the dispensing device that coded system mark sends to participation multiplexing by the mode of broadcast by transmitting element 203, after each dispensing device receives broadcasted content, in broadcasted content, obtain coded system or the coded system mark of oneself.

It should be noted that, transmitting element 203 sends coded system or coded system mark by the mode of broadcast, and can send in form of a message, also can send with the form of signaling, the present invention does not specifically limit this.

Also it should be noted that, when transmitting element 203 sends coded system or coded system mark by the mode of broadcast, only can send and participate in coded system that each dispensing device in X multiplexing dispensing device determines or coded system identifies, participate in coded system that each dispensing device in X multiplexing dispensing device determines or coded system to be identified in broadcasted content and arrange with the order of shaking hands of dispensing device and receiving system 20, obtain oneself coded system according to order of shaking hands after dispensing device receives or coded system identifies; Certainly, participate in coded system that each dispensing device in X multiplexing dispensing device determines or coded system is identified in broadcasted content with other order arrangements, as long as can obtain oneself coded system according to changing order after dispensing device receives or coded system identifies, the coded system that the present invention determines for each dispensing device in multiplexing X the dispensing device of participation or coded system are identified at putting in order in broadcasted content and specifically do not limit.

Certainly, when transmitting element 203 sends coded system or coded system mark by the mode of broadcast, both can send and participate in coded system that each dispensing device in multiplexing X dispensing device determines or coded system mark, also send the mark of the dispensing device of correspondence; After dispensing device receives broadcasted content, coded system or the coded system mark of self can be obtained according to the mark of self in broadcasted content.

Wherein, the mark of dispensing device refers to the mark uniquely can distinguishing dispensing device, can be the ID of dispensing device or the IMSI of dispensing device or other; The present invention does not specifically limit for the mark of dispensing device.

It should be noted that, coded system that each dispensing device in X multiplexing dispensing device determines was participated in or coded system identifies when transmitting element 203 has both been sent by the mode of broadcast, when also sending the mark of corresponding dispensing device, broadcasted content can be sent in table form, also can send with other forms, the present invention does not specifically limit this.

Exemplary, see table 2, illustrate comprise the broadcasted content that a kind of transmitting element 203 sends each mark participating in multiplexing dispensing device and identify with the coded system of this dispensing device; After X multiplexing dispensing device receive broadcasted content when participation, search coded system corresponding with it identify according to being identified in broadcasted content of oneself, then according to the mark of this coded system and default corresponding relation, obtain the coded system of self.

Table 2

The mark of dispensing device	The coded system mark of this dispensing device
		Dispensing device 1	Coded system mark 1
Dispensing device 2	Coded system mark 2
		Dispensing device 3	Coded system mark 3
……	……
		Dispensing device X	Coded system mark X

It should be noted that, table 2 is just described the content of broadcasted content and form with exemplary form, is not the restriction of content to broadcasted content and form.

Receiving element 204, for receiving multiplexed signals; Wherein, described multiplexed signals comprise respectively from a described X dispensing device reference signal and with the time-multiplexed data-signal of described reception reference signal;

Concrete, first receives the reference signal of original reference signals after transmission that reference signal is the first dispensing device transmission; Original reference signals is that dispensing device Reference Signal basic sequence is generated by the coded system coding received; First reception reference signal is X any one receiving in reference signal.

X receives reference signal and X data-signal is time-multiplexedly refer to that X receives reference signal and X data-signal in time independently, does not have intersection, can differentiate X reception reference signal and X data-signal easily;

Original reference signals is that dispensing device Reference Signal basic sequence generates by encoding according to the coded system received, and reference sequences generation method defines in agreement 3gpp36.211.

Demultiplexing unit 205, for according to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting described Deplexing method to comprise carry out at least twice parsing to described multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in a described X dispensing device.

Wherein, local reference signal is identical with original reference signals essence; As dispensing device and the receiving system 20 of communicating pair, reference signal basic sequence is that both sides know altogether; Dispensing device adopts the coded system received to carry out to reference signal basic sequence the original reference signals that coding generates this dispensing device, and sends to receiving system 20; The local reference signal that dispensing device and receiving system 20 adopt the coded system Reference Signal basic sequence sent to dispensing device to carry out this dispensing device of coding generation corresponding is kept at this locality.

Orthogonality principle can include but not limited to coherence time, coherence bandwidth, orthogonal code method.

Method by three kinds of different algorithm demultiplexing acquisition channel-estimation information and principle are described below respectively:

1, CS algorithm demultiplexing;

The principle of carrying out demultiplexing with CS algorithm is: according to Discrete Fourier Transform (DiscreteFourierTransform, DFT) principle, the phase rotating of signal on frequency domain, be equivalent to the cyclic shift in time domain, therefore, utilize this characteristic, the channel impulse response of the multiuser multiplexing signal that synchronization can be received is separated in time domain; Then by time-domain windowed filtering, just can the channel of separation multiplexing user; Shown in the following formula of conversion of frequency domain to time domain:

$\left\{\begin{array}{c}{H}_0\left(k\right)\stackrel{\mathrm{DFT}}{\→}{h}_0\left(n\right)\\ H_1\left(k\right)e^{{-j2\mathrm{\πkn}}_{\mathrm{cs}}/12}\stackrel{\mathrm{DFT}}{\→}{h}_1(n-\frac{n_{\mathrm{cs}}N}{12})\end{array}\right.$ Formula (1);

Wherein, H _uk () represents the channel of user u on a frequency domain kth subcarrier; h _un () represents the channel of user u in time domain n-th moment; represent H ₁k () is at frequency domain phase rotating n _csrepresent cyclic shift parameter; represent h ₁n () be translation in time domain n represents the transform length of discrete Fourier transform.

It should be noted that, use expression is differentiated by CS algorithm and is participated in the ability of multiplexing dispensing device to the channel of receiving system; Wherein, n _csi () represents the cyclic shift parameter of i-th user; n _csj () represents the cyclic shift parameter of a jth user; be worth larger, the effect being separated the channel-estimation information participating in multiple dispensing device by CS is better, and precision is higher; When the quantity participating in multiplexing dispensing device is n, this value is maximum can be

2, FF algorithm demultiplexing;

Adopt FF algorithm carry out multiplexingly with the principle of demultiplexing be: the channel near flat in coherence in frequency domain bandwidth; Namely, when obtaining channel-estimation information by FF algorithm demultiplexing, several channel approximately equals on carrier wave adjacent are thought.

Below in exemplary fashion, the process of FF algorithm demultiplexing is described:

Exemplary, participate in being multiplexed with example with 2 dispensing devices, the process of FF algorithm demultiplexing is described; 2 multiplexing dispensing devices of participation are designated as dispensing device 0, dispensing device 1;

The multiplexed signals that receiving element 204 receives on a kth subcarrier is the Y (k) shown in following formula (2), and the multiplexed signals received on kth+1 subcarrier is the Y (k+1) shown in following formula (2);

$\left\{\begin{array}{c}Y\left(k\right)=H_0\left(k\right)S_0\left(k\right)+H_1\left(k\right)S_1\left(k\right)+N\left(k\right)\\ Y(k+1)=H_0(k+1)S_0(k+1)+H_1(k+1)S_1(k+1)+N(k+1)\end{array}\right.$ Formula (2);

Wherein, H _uk () represents the channel of dispensing device u on a kth subcarrier; Y (k) expression receives multiplexed signals on a kth subcarrier; S _uk () represents the reception reference signal of dispensing device u on a kth subcarrier; N (k) represents the interference noise on a kth subcarrier.

It should be noted that, being only described for a kth subcarrier and kth+1 subcarrier two subcarriers in this example, is not the restriction to number of carriers; When carrier number is not equal to 2, similar to the method described in this example, no longer repeat herein.

Due to the channel approximately equal on several subcarriers adjacent, namely wherein, expression is congruent to; This formula is substituted into formula (2); Simultaneously in order to simply, the k representing subcarrier can be omitted, namely use H ₀replace H ₀k (), uses H ₁replace H ₁k (), can obtain:

$\left\{\begin{array}{c}Y\left(k\right)=H_0{S}_0\left(k\right)+H_1{S}_1\left(k\right)+N\left(k\right)\\ Y(k+1)=H_0{S}_0(k+1)+H_1{S}_1(k+1)+N(k+1)\end{array}\right.$ Formula (3);

By by the multiplexed signals in formula 3 $\left[\begin{array}{c}Y\left(k\right)\\ Y(k+1)\end{array}\right]$ The matrix that the local reference signal corresponding with the reception reference signal in multiplexed signals forms $S=\left[\begin{array}{cc}{S}_0\left(k\right)& S_1\left(k\right)\\ S_0(k+1)& S_1(k+1)\end{array}\right]$ Inverse matrix be multiplied, then can obtain the H in formula (3) ₀and H ₁estimated value, namely obtain the channel-estimation information of dispensing device 0 and dispensing device 1 to receiving system 20, reach the object of demultiplexing.

It should be noted that, in order to ensure the matrix that local reference signal forms $S=\left[\begin{array}{cc}{S}_0\left(k\right)& S_1\left(k\right)\\ S_0(k+1)& S_1(k+1)\end{array}\right]$ Inverse matrix exist, then need $S=\left[\begin{array}{cc}{S}_0\left(k\right)& S_1\left(k\right)\\ S_0(k+1)& S_1(k+1)\end{array}\right]$ For nonsingular, namely the determinant of matrix S is non-vanishing.

3, OCC algorithm demultiplexing;

Adopt OCC algorithm carry out multiplexingly with the principle of demultiplexing be: in a subframe, channel is accurate static, i.e. H _u(k, τ ₀)=H _u(k, τ ₁).

Below in exemplary fashion, the process of OCC algorithm demultiplexing is described:

Exemplary, participate in being multiplexed with example with 2 dispensing devices, the process of OCC algorithm demultiplexing is described; 2 multiplexing dispensing devices of participation are designated as dispensing device 0, dispensing device 1; The OCC coded system that dispensing device 0 adopts is all the reference signal (DeModulationReferenceSignal of the demodulation of first time slot, being called for short DMRS) code coefficient is 1, the DMRS code coefficient of second time slot is-1, and the OCC coded system that dispensing device 1 adopts is the code coefficient of two time slots is all 1.

Receiving element 204 receives τ ₀multiplexed signals on an individual time slot kth subcarrier is Y (k, the τ shown in following formula (4) ₀), receive τ ₁multiplexed signals on an individual time slot kth subcarrier is Y (k, the τ shown in following formula (4) ₁);

$\left\{\begin{array}{c}Y(k,{\mathrm{\τ}}_0)=H_0(k,{\mathrm{\τ}}_0)S_0(k,{\mathrm{\τ}}_0)+H_1(k,{\mathrm{\τ}}_0)S_1(k,{\mathrm{\τ}}_0)+N(k,{\mathrm{\τ}}_0)\\ Y(k,{\mathrm{\τ}}_1)=H_0(k,{\mathrm{\τ}}_1)S_0(k,{\mathrm{\τ}}_1)-H_1(k,{\mathrm{\τ}}_1)S_1(k,{\mathrm{\τ}}_1)+N(k,{\mathrm{\τ}}_1)\end{array}\right.$ Formula (4);

Wherein, Y (k, τ ₀) represent receive τ ₀multiplexed signals on an individual time slot kth subcarrier; H _u(k, τ ₀) represent that dispensing device u is at τ ₀channel on a kth subcarrier of individual time slot; S _u(k, τ ₀) represent that dispensing device u is at τ ₀reception reference signal on a kth subcarrier of individual time slot; N (k, τ ₀) represent at τ ₀interference noise on a kth subcarrier of individual time slot.

It should be noted that, be only described for a kth subcarrier in this example, a kth subcarrier is any one subcarrier, is not the restriction to number of carriers; When each sub-carrier number passes through OCC algorithm demultiplexing, identical with the method described in this example, no longer repeat herein.

Because in a subframe, channel is accurate static, so this formula is substituted into formula (4), and is multiplied by local reference signal S corresponding to dispensing device respectively on above formula equal sign both sides ₀(k, τ _i) conjugation wherein, i represents dispensing device; For simplicity, omit the k representing subcarrier, namely use H simultaneously ₀replace H ₀(k, τ ₀), use H ₁replace H ₁(k, τ ₀), formula (4) can be converted to following formula (5):

$\left\{\begin{array}{c}Y\left({\mathrm{\τ}}_0\right)S_0^{*}\left({\mathrm{\τ}}_0\right)=H_0+H_1{S}_1\left({\mathrm{\τ}}_0\right)S_0^{*}\left({\mathrm{\τ}}_0\right)+N\left({\mathrm{\τ}}_0\right)S_0^{*}\left({\mathrm{\τ}}_0\right)\\ Y\left({\mathrm{\τ}}_1\right)S_0^{*}\left({\mathrm{\τ}}_1\right)=H_0-H_1{S}_1\left({\mathrm{\τ}}_1\right)S_0^{*}\left({\mathrm{\τ}}_1\right)+N\left({\mathrm{\τ}}_1\right)S_0^{*}\left({\mathrm{\τ}}_1\right)\end{array}\right.$ Formula (6);

Due to $S_1\left({\mathrm{\τ}}_1\right)S_0^{*}\left({\mathrm{\τ}}_1\right)=S_1\left({\mathrm{\τ}}_0\right)e^{\mathrm{j\θ}}{\left(S_0\left({\mathrm{\τ}}_0\right)e^{\mathrm{j\θ}}\right)}^{*}=S_1\left({\mathrm{\τ}}_0\right)S_0^{*}\left({\mathrm{\τ}}_0\right),$ Therefore,

${\hat{H}}_{0,\mathrm{LS}}=\frac{Y\left({\mathrm{\τ}}_0\right)S_0^{*}\left({\mathrm{\τ}}_0\right)+Y\left({\mathrm{\τ}}_1\right)S_0^{*}\left({\mathrm{\τ}}_1\right)}{2}=H_0+\frac{N\left({\mathrm{\τ}}_0\right)S_0^{*}\left({\mathrm{\τ}}_0\right)+N\left({\mathrm{\τ}}_1\right)S_0^{*}\left({\mathrm{\τ}}_1\right)}{2}$ Formula (7);

In like manner,

${\hat{H}}_{1,\mathrm{LS}}=\frac{Y\left({\mathrm{\τ}}_0\right)S_1^{*}\left({\mathrm{\τ}}_0\right)-Y\left({\mathrm{\τ}}_1\right)S_1^{*}\left({\mathrm{\τ}}_1\right)}{2}=H_1+\frac{N\left({\mathrm{\τ}}_0\right)S_1^{*}\left({\mathrm{\τ}}_0\right)-N\left({\mathrm{\τ}}_1\right)S_1^{*}\left({\mathrm{\τ}}_1\right)}{2}$ Formula (8);

Formula (6) and formula (7) are the H in formula (5) ₀and H ₁estimated value, namely obtain dispensing device 0 and dispensing device 1 to the channel-estimation information of receiving system 20, reach the object of demultiplexing, two users have been separated.

The embodiment of the present invention provides a kind of receiving system 20, by obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported; According to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method; Wherein, Deplexing method comprises at least two kinds of algorithms; According to Deplexing method, determine the coded system of each dispensing device in X dispensing device; Coded system is sent to X dispensing device; Receive multiplexed signals; Wherein, multiplexed signals comprise respectively from X dispensing device reference signal and with reception reference signal time-multiplexed data-signal; According to local reference signal, utilize orthogonality principle, at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.So, because the Deplexing method determined according to the multiple transmission feature parameters participating in X multiplexing dispensing device at least comprises two kinds of algorithms, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals and obtain channel-estimation information, make when the quantity participating in multiplexing dispensing device is more, the Deplexing method determined is high with the quantity and transmission feature parameter matching degree participating in multiplexing dispensing device, and the combination of at least two kinds of algorithms has played the advantage of various algorithm, can more in the quantity participating in multiplexing dispensing device time still can estimate between dispensing device and receiving system channel-estimation information accurately, solve in prior art, when the quantity participating in multiplexing dispensing device is more, do not have effective Deplexing method can estimate the defect of the channel-estimation information between dispensing device and receiving system accurately.

Embodiment two

The embodiment of the present invention two provides a kind of method obtaining channel-estimation information, and as shown in Figure 3, the method can comprise:

The transmission feature parameter of each dispensing device in S301, acquisition X dispensing device;

Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms;

Preferably, transmission feature parameter comprises the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported.

It should be noted that, X dispensing device be receiving system in the process described in S102 by dispatching the multiplexing dispensing device of the participation determined; How the present invention selects X dispensing device specifically not limit for scheduling.

S302, transmission feature parameter according to each dispensing device in X dispensing device, determine Deplexing method;

Wherein, described Deplexing method comprises at least two kinds of algorithms; After receiving system receives multiplexed signals, the Deplexing method determined can be adopted to resolve multiplexed signals, obtain channel-estimation information.

Concrete, according to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method, specifically can comprise following two steps:

Step 1, the quantity of dispensing device supported according to the algorithm of the transmission feature parameter of each dispensing device in X dispensing device, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising, be divided into M dispensing device group by X dispensing device;

Wherein, M is more than or equal to 2.

It should be noted that, if M equals 1, then the Deplexing method determined comprises a kind of algorithm, and be prior art, the present invention does not repeat this.

Wherein, pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

It should be noted that, the pre-conditioned group of content that can also comprise other, the present invention does not do concrete restriction to the pre-conditioned group of content comprised.

Wherein, pre-conditioned group comprises multiple pre-conditioned, each the pre-conditioned algorithm having correspondence in pre-conditioned group:

Concrete, it is CS algorithm that dispensing device sends the bandwidth of resource that signal takies and the position corresponding algorithm that overlaps completely, that is, if dispensing device sends the bandwidth of resource that signal takies and position overlaps completely, then CS algorithm can be adopted between dispensing device to carry out demultiplexing; It is FF algorithm that the interval of the subcarrier of the resource that dispensing device transmission signal takies is less than or equal to algorithm corresponding to the first predetermined threshold value, namely, if the interval that dispensing device sends the subcarrier of the resource that signal takies is less than or equal to the first predetermined threshold value, then FF algorithm can be adopted between dispensing device to carry out demultiplexing; The translational speed of dispensing device is less than or equal to the second predetermined threshold value and Release version is equal to or higher than the corresponding OCC algorithm of Release10, namely, if the translational speed of dispensing device is less than or equal to the second predetermined threshold value and Release version is equal to or higher than Release10, then OCC algorithm can be adopted between dispensing device to carry out demultiplexing.

It should be noted that, pre-conditioned group comprise at least two pre-conditioned, a kind of algorithm of each pre-conditioned correspondence, each algorithm has the quantity of dispensing device that this algorithm is supported; Namely, time by algorithm demultiplexing, if the quantity participating in multiplexing dispensing device is less than or equal to the quantity of the dispensing device that self supports, the effect of demultiplexing is best; The quantity of the dispensing device that the algorithm of the pre-conditioned group of pre-conditioned correspondence of each comprising is supported, can according to the actual requirements and the characteristic of algorithm determine, the present invention does not specifically limit this.

Exemplary, CS theory of algorithm can be supported 8 dispensing devices participate in multiplexing, but the quantity participating in multiplexing dispensing device is more, the ability distinguishing each dispensing device in the process of demultiplexing is poorer, therefore, the quantity of the multiplexing dispensing device of maximum participation that CS algorithm is supported can be set according to actual needs; Preferably, the quantity that can set the dispensing device of CS algorithm support is 4.But the present invention does not specifically limit for the quantity of the dispensing device of CS algorithm support.

Exemplary, it is multiplexing that OCC algorithm supports at most that under the support of current agreement two dispensing devices participate in, but along with the development of agreement, it is multiplexing that OCC algorithm can support that more dispensing device participates in; But the present invention does not specifically limit for the quantity of the dispensing device of OCC algorithm support.

Exemplary, FF theory of algorithm can be supported being greater than two dispensing devices participates in multiplexing, but the quantity participating in multiplexing dispensing device is more, the ability distinguishing each dispensing device in the process of demultiplexing is poorer; Therefore, the dispensing device quantity that the maximum participation of FF algorithm support is multiplexing can be set according to actual needs; Preferably, the quantity that can set the dispensing device of FF algorithm support is 2.But the present invention does not specifically limit for the quantity of the dispensing device of FF algorithm support.

Concrete, according to the transmission feature parameter of each dispensing device in X dispensing device, pre-conditioned group, the quantity of the dispensing device of the algorithm support of the pre-conditioned group of pre-conditioned correspondence of each comprising, the group forming criterion of M dispensing device group is divided into by X dispensing device to be: transmission feature parameter to be met same pre-conditioned dispensing device in pre-conditioned group and be divided into a group, and the quantity of dispensing device that the algorithm of pre-conditioned correspondence that the transmission feature parameter that the quantity of each group of dispensing device comprised is less than or equal to this group dispensing device meets is supported.

Optionally, according to the quantity of the dispensing device that the algorithm of the transmission feature parameter of each dispensing device in X dispensing device, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising is supported, X dispensing device is divided into the mode of M dispensing device group, can be realized by any one mode following:

First kind of way, be divided into M dispensing device group arbitrarily according to group forming criterion;

Exemplary, suppose that participating in multiplexing dispensing device is UE1 ~ UE8, pre-conditioned group comprises condition 1, condition 2, condition 3; Particular content for condition 1 ~ condition 3 herein does not specifically limit; The dispensing device quantity of each self-corresponding algorithm support of condition 1 ~ condition 3 is respectively 3,2,3;

Suppose, the transmission feature parameter of UE1 ~ UE3 the satisfy condition transmission feature parameter of 2, UE4 ~ UE8 of the transmission feature parameter of 1, UE3 ~ UE6 that satisfies condition satisfies condition 3 again;

Therefore, according to group forming criterion, 8 dispensing devices can be divided into 3 dispensing device groups: dispensing device group 1 (UE1, UE2, UE3), dispensing device group 2 (UE4, UE5), dispensing device group 3 (UE6, UE7, UE8); Or,

According to group forming criterion, 8 dispensing devices can also be divided into 4 dispensing device groups: dispensing device group 1 (UE1, UE2), dispensing device group 2 (UE3, UE4), dispensing device group 3 (UE5, UE6), dispensing device group 4 (UE7, UE8);

Certainly, can also according to group forming criterion, the dispensing device of 8 in above-mentioned example is divided into other forms of grouping, and this is no longer going to repeat them in the present invention, as long as the grouping carried out according to group forming criterion, all belongs to protection scope of the present invention.

It should be noted that, in grouping process, for meeting multiple pre-conditioned dispensing device with other dispensing devices, it can be divided arbitrarily, only need meet group forming criterion, concrete zoned format the present invention does not limit.

The second way, priority according to algorithm, be divided into M dispensing device group according to group forming criterion.

Exemplary, with reference to the example in first kind of way, then the priority of the algorithm of assumed condition 2 correspondence is the highest, and the priority of the algorithm of condition 1 correspondence is taken second place, and the priority of the algorithm of condition 3 correspondence is minimum;

Therefore, according to the priority of algorithm, according to group forming criterion, 8 dispensing devices can be divided into 3 dispensing device groups: dispensing device group 1 (UE1, UE2), dispensing device group 2 (UE3, UE4), dispensing device group 3 (UE5, UE6), dispensing device group 4 (UE7, UE8);

Certainly, can also according to group forming criterion, the dispensing device of 8 in above-mentioned example is divided into other forms of grouping, and this is no longer going to repeat them in the present invention, as long as the grouping carried out according to group forming criterion, all belongs to protection scope of the present invention.

It should be noted that, in grouping process, for meeting multiple pre-conditioned dispensing device, can be divided in the highest dispensing device group of algorithm priority, concrete zoned format the present invention does not limit.

Form is by way of example divided into M dispensing device group to be described in detail to by X dispensing device more below:

Exemplary, suppose to participate in X=12 multiplexing dispensing device, be designated as UE1 ~ UE12 respectively;

Suppose again, in pre-conditioned group, condition 1 is send the bandwidth of resource that signal takies and position overlaps completely, condition 2 is that the interval sending the subcarrier of resource that signal takies is less than or equal to the first predetermined threshold value, and condition 3 is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10 for translational speed;

Suppose, the quantity of the dispensing device of the CS algorithm support of condition 1 correspondence is 3 again, and the quantity of the dispensing device of the FF algorithm support of condition 2 correspondence is 2, and the quantity of the dispensing device of the OCC algorithm support of condition 3 correspondence is 2;

Suppose, in scheduling process, receiving system is the resource that the transmission signal of UE1 ~ UE12 distribution takies is Resource Block (ResourceBlock is called for short RB) 3, RB4, RB5, RB6, RB10, RB11, RB12 again;

1 is satisfied condition from the transmission feature parameter of above-mentioned hypothesis: UE1 ~ UE12;

Therefore, according to the quantity of the dispensing device that the algorithm of the transmission feature parameter of each dispensing device in 12 dispensing devices, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising is supported, 12 dispensing devices can be divided into the dispensing device group of multiple situation:

The first situation: the upper limit grouping of the quantity of the dispensing device supported according to algorithm, be divided into 4 dispensing device groups, each dispensing device group comprises 3 dispensing devices;

Concrete, in UE1 ~ UE12, any three dispensing devices are divided into one group, like this, are divided into 4 dispensing device groups.

Second case: in order to improve the resolution of demultiplexing, the quantity of the dispensing device that dispensing device group comprises is less than the quantity of the dispensing device that algorithm is supported, be divided into 6 dispensing device groups, each dispensing device group comprises 2 dispensing devices;

Concrete, in UE1 ~ UE12, any two dispensing devices are divided into one group, like this, are divided into 6 dispensing device groups.

The third situation: the quantity of the dispensing device that part dispensing device group comprises is less than the quantity of the dispensing device that algorithm is supported, the quantity of the dispensing device that part dispensing device group comprises equals the quantity of the dispensing device that algorithm is supported, be divided into 5 dispensing device groups, part dispensing device group comprises 2 dispensing devices, and part dispensing device group comprises 3 dispensing devices.

It should be noted that, for the grouping of 12 dispensing devices in above-mentioned example, except above-mentioned three kinds of situations, other situations can also be comprised, will not enumerate herein, during grouping, only need meet the principle of grouping.

Also it should be noted that, above-mentioned example just describes for the citing of the method for grouping, is not that the present invention is for grouping process, group technology and otherwise concrete restriction.

Step 2, according to the transmission feature parameter of M dispensing device group and pre-conditioned group, determine Deplexing method;

Concrete, according to the transmission feature parameter of M dispensing device group and pre-conditioned group, determine Deplexing method, contrast according to the transmission feature parameter of M dispensing device group and pre-conditioned group, what comprise according to the transmission feature parameter of each dispensing device group and pre-conditioned group pre-conditioned meets situation, determine Deplexing method, specifically can comprise but not following three kinds of situations:

The first situation:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in M dispensing device group, transmission feature parameter between M dispensing device group meets second pre-conditioned, M is less than or equal to O, determine that Deplexing method is the algorithm first adopting the second pre-conditioned correspondence, then adopt the algorithm of the first pre-conditioned correspondence respectively.

Wherein, first pre-conditioned be that in pre-conditioned group, any one is pre-conditioned; Second is pre-conditioned pre-conditioned for being different from the first pre-conditioned any one in pre-conditioned group; The quantity of the dispensing device that the algorithm that O is less than or equal to the second pre-conditioned correspondence is supported.

Need showing of explanation, for the value of Q, can determine according to the actual requirements, the present invention does not specifically limit this.

In the first case; in M dispensing device group, in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned; and the transmission feature parameter between M dispensing device group can meet first pre-conditioned; also can not meet first pre-conditioned; the present invention does not specifically limit this, all belongs to protection scope of the present invention.

Optionally, when selection first is pre-conditioned can by but be not limited only in following two kinds of modes any one select:

First kind of way: Stochastic choice one is pre-conditioned pre-conditioned as first in pre-conditioned group:

The second way: in pre-conditioned group according to priority select one pre-conditioned pre-conditioned as first:

Such as: preset priority can be: CS algorithm priority is the highest, be called first priority, FF algorithm priority takes second place, be called the second priority, the priority of OCC algorithm is minimum, is called the 3rd priority;

So, when selection first is pre-conditioned, the CS algorithm that prioritizing selection priority is the highest carries out multiplexing, when dispensing device parameter meet be with CS calculate condition time, select the FF algorithm with the second priority again, when the parameter of dispensing device do not meet be condition with FF algorithm time, then select the OCC algorithm with the 3rd priority;

It should be noted that, the setting for algorithm priority can set according to the needs of practical application, and the present invention does not limit.

It should be noted that, except two kinds of modes that above-mentioned selection first is pre-conditioned, can also select first pre-conditioned in other way, the present invention does not do concrete restriction to the first pre-conditioned selection mode.

Certainly, for the second pre-conditioned selection, similar with the first pre-conditioned selection mode, also can select arbitrarily or select according to priority, the present invention no longer repeats at this.

Exemplary, suppose that 4 dispensing devices participate in multiplexing, 4 multiplexing dispensing devices of participation are designated as UE1, UE2, UE3, UE4 respectively; Pre-conditioned group comprises condition 1, condition 2 and condition 3; The corresponding CS algorithm of condition 1, the dispensing device quantity of support is 2; The corresponding FF algorithm of condition 2, the dispensing device quantity of support is 2; The corresponding OCC algorithm of condition 3, the dispensing device quantity of support is 2;

Suppose again transmission feature parameter between these 4 dispensing devices and pre-conditioned group to meet situation as shown in table 3 below:

Table 3

	UE1	UE2	UE3	UE4
					UE1	/	Condition 1	Condition 1, condition 2	Condition 1, condition 2
UE2	Condition 1	/	Condition 1, condition 2	Condition 1, condition 2
					UE3	Condition 1, condition 2	Condition 1, condition 2	/	Condition 1
UE4	Condition 1, condition 2	Condition 1, condition 2	Condition 1	/

Suppose, be divided into M=2 dispensing device group (using UE1 and UE2 as the first dispensing device group 4 dispensing devices in step 1; Using UE3 and UE4 as the second dispensing device group;

Because the transmission feature parameter of the dispensing device comprised in each dispensing device group satisfies condition 1, the CS algorithm demultiplexing of condition 1 correspondence therefore in each dispensing device group, can be adopted;

According to the example of table 3, and the first dispensing device group (UE1 and UE2) and the second dispensing device group (UE3 and UE4) satisfy condition 2;

Again because the corresponding FF algorithm of condition 2, the dispensing device quantity supported is 2, and the quantity M=2 of dispensing device group equals the dispensing device quantity that the corresponding FF algorithm of condition 2 is supported, therefore, the FF algorithm demultiplexing of condition 2 correspondence between two dispensing device groups, can be adopted;

From the above, the Deplexing method determined for first adopting FF algorithm, then adopts CS algorithm respectively; Namely FF arithmetic analysis can be first adopted to obtain the channel-estimation information median of two dispensing device groups, adopt the channel-estimation information median of CS algorithm to two dispensing device groups to resolve again respectively, to obtain in 4 dispensing devices each dispensing device to the channel-estimation information of receiving system.

The second situation:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in M dispensing device group, transmission feature parameter between M dispensing device group meets the 4th pre-conditioned, M is greater than O, is N number of dispensing device set by M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between N number of dispensing device set meets the 5th pre-conditioned, N is less than or equal to P, determine that Deplexing method is the algorithm first adopting the 5th pre-conditioned correspondence, then adopt the algorithm of the 4th pre-conditioned correspondence respectively, then adopt the algorithm of the 3rd pre-conditioned correspondence respectively;

Wherein, the 3rd pre-conditioned be that in pre-conditioned group, any one is pre-conditioned; 4th is pre-conditioned pre-conditioned for being different from the 3rd pre-conditioned any one in pre-conditioned group; 5th pre-conditioned in order to be different from pre-conditioned group, the 3rd is pre-conditioned and the 4th pre-conditioned any one is pre-conditioned; The quantity of the dispensing device that the algorithm that O is less than or equal to the 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that P is less than or equal to the 5th pre-conditioned correspondence is supported.

It should be noted that, when being N number of dispensing device set by M dispensing device component, can choose arbitrarily dispensing device group and divide set, only need ensure to comprise O dispensing device group in dispensing device set at the most, the present invention does not limit for the selection of dispensing device group during division set.

Exemplary, suppose that 8 dispensing devices participate in multiplexing, 8 multiplexing dispensing devices of participation are designated as UE1 ~ UE8 respectively; Pre-conditioned group comprises condition 1, condition 2 and condition 3; The corresponding CS algorithm of condition 1, the dispensing device quantity of support is 2; The corresponding FF algorithm of condition 2, the dispensing device quantity of support is 2; The corresponding OCC algorithm of condition 3, the dispensing device quantity of support is 2;

Suppose again transmission feature parameter between these 8 dispensing devices and pre-conditioned group to meet situation as shown in table 4 below:

Table 4

Suppose, be divided into M=4 dispensing device group (using UE1 and UE2 as the first dispensing device group 8 dispensing devices in step 1; Using UE3 and UE4 as the second dispensing device group; Using UE5 and UE6 as the first dispensing device group; Using UE7 and UE8 as the second dispensing device group);

Because the transmission feature parameter of the dispensing device comprised in each dispensing device group satisfies condition 1, the CS algorithm demultiplexing of condition 1 correspondence therefore in each dispensing device group, can be adopted;

According to the example of table 4, the transmission feature parameter between the first dispensing device group (UE1 and UE2), the second dispensing device group (UE3 and UE4), the 3rd dispensing device group (UE5 and UE6), the 4th dispensing device group (UE7 and UE8) satisfies condition 2;

Again because the corresponding FF algorithm of condition 2, the dispensing device quantity supported is 2, and the dispensing device quantity that the corresponding FF algorithm of the quantity M=4 greater than condition 2 of dispensing device group is supported, therefore, be N=2 dispensing device set by 4 dispensing device components: the first dispensing device set (the first dispensing device group, the second dispensing device group), the first dispensing device set (the 3rd dispensing device group, the 4th dispensing device group);

Because the transmission feature parameter of the dispensing device comprised in each dispensing device set satisfies condition 2, and the quantity of dispensing device that each dispensing device set comprises equals the dispensing device quantity that the corresponding FF algorithm of condition 2 is supported, therefore can adopt the FF algorithm demultiplexing of condition 2 correspondence in each dispensing device set;

According to the example of table 4, first dispensing device set (the first dispensing device group, the second dispensing device group), the transmission feature parameter between the first dispensing device set (the 3rd dispensing device group, the 4th dispensing device group) satisfies condition 3;

Again because the corresponding OCC algorithm of condition 3, the dispensing device quantity of support is 2, and the quantity N=2 of dispensing device set equals the dispensing device quantity that the corresponding OCC algorithm of condition 3 is supported, therefore, can adopt OCC algorithm demultiplexing between two dispensing device set;

From the above, the Deplexing method determined for first adopting OCC algorithm, then adopts FF algorithm respectively, then adopts CS algorithm respectively; Namely OCC arithmetic analysis can be first adopted to obtain the channel-estimation information median of two dispensing device set, the channel-estimation information median of FF algorithm to two dispensing device set is adopted to resolve again respectively, obtain the channel-estimation information median of 4 dispensing device groups, adopt the channel-estimation information median of CS algorithm to 4 dispensing device groups to resolve again respectively, to obtain in 8 dispensing devices each dispensing device to the channel-estimation information of receiving system.

The third situation:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between M dispensing device group meets the 8th pre-conditioned, M is less than or equal to Q, determine that Deplexing method is the algorithm first adopting the 8th pre-conditioned correspondence, then adopt the algorithm of the 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, the 6th pre-conditioned be that in pre-conditioned group, any one is pre-conditioned; 7th is pre-conditioned pre-conditioned for being different from the 6th pre-conditioned any one in pre-conditioned group; 8th pre-conditioned in order to be different from pre-conditioned group, the 6th is pre-conditioned and the 7th pre-conditioned any one is pre-conditioned; The quantity of the dispensing device that the algorithm that Q is less than or equal to the 8th pre-conditioned correspondence is supported.

Exemplary, suppose that 8 dispensing devices participate in multiplexing, 8 multiplexing dispensing devices of participation are designated as UE1 ~ UE8 respectively; Pre-conditioned group comprises condition 1, condition 2 and condition 3; The corresponding CS algorithm of condition 1, the dispensing device quantity of support is 4; The corresponding FF algorithm of condition 2, the dispensing device quantity of support is 2; The corresponding OCC algorithm of condition 3, the dispensing device quantity of support is 2;

Suppose again transmission feature parameter between these 8 dispensing devices and pre-conditioned group to meet situation as shown in table 5 below:

Table 5

Suppose, be divided into M=4 dispensing device group (using UE1 and UE2 as the first dispensing device group 8 dispensing devices in step 1; Using UE3 and UE4 as the second dispensing device group; Using UE5 and UE6 as the first dispensing device group; Using UE7 and UE8 as the second dispensing device group);

Because the transmission feature parameter of the dispensing device comprised in the first dispensing device group and the second dispensing device group group satisfies condition 2, the FF algorithm demultiplexing of condition 2 correspondence therefore in the first dispensing device group and the second dispensing device group, can be adopted; Because the transmission feature parameter of the dispensing device comprised in the 3rd dispensing device group and the 4th dispensing device group group satisfies condition 3, the OCC algorithm demultiplexing of condition 3 correspondence therefore in the 3rd dispensing device group and the 4th dispensing device group, can be adopted;

According to the example of table 5, the transmission feature parameter between the first dispensing device group (UE1 and UE2), the second dispensing device group (UE3 and UE4), the 3rd dispensing device group (UE5 and UE6), the 4th dispensing device group (UE7 and UE8) satisfies condition 1;

Again because the corresponding CS algorithm of condition 1, the dispensing device quantity of support is 4, and the quantity M=4 of dispensing device group equals the dispensing device quantity that the corresponding CS algorithm of condition 1 is supported, therefore, can adopt CS algorithm demultiplexing between four dispensing device groups;

From the above, the Deplexing method determined for first adopting CS algorithm, then adopts FF algorithm and OCC algorithm respectively; Namely CS arithmetic analysis can be first adopted to obtain the channel-estimation information median of four dispensing device groups, the channel-estimation information median of FF algorithm to the channel-estimation information median of the first dispensing device group and the second dispensing device group is adopted to resolve again respectively, obtain the channel-estimation information of 4 dispensing devices (UE1 ~ UE4), adopt the channel-estimation information median of OCC algorithm to the channel-estimation information median of the 3rd dispensing device group and the 4th dispensing device group to resolve respectively, obtain the channel-estimation information of 4 dispensing devices (UE5 ~ UE8).

It should be noted that, if when the transmission feature parameter of M dispensing device group can not meet any one in above-mentioned three kinds of situations, need adjustment grouping or adjust pre-conditioned, to make finally to determine Deplexing method.

It should be noted that, in the process of the second situation determination Deplexing method by above-mentioned steps 1 and step 2, may exist unreasonable because of what divide into groups, cause determining suitable Deplexing method, now, can grouping be re-started, to make to determine suitable Deplexing method, therefore, further, described method can also comprise:

If N is greater than P, the quantity of the dispensing device again supported according to the algorithm of the transmission feature parameter of each dispensing device in X dispensing device, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising, X dispensing device is divided into M dispensing device group, is less than or equal to P to make N.

It should be noted that, in the process of the third situation determination Deplexing method by above-mentioned steps 1 and step 2, may exist unreasonable because of what divide into groups, cause determining suitable Deplexing method, now, can grouping be re-started, to make to determine suitable Deplexing method, therefore, further, described method can also comprise:

If M is greater than Q, the quantity of the dispensing device again supported according to the algorithm of the transmission feature parameter of each dispensing device in X dispensing device, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising, X dispensing device is divided into M dispensing device group, is less than or equal to Q to make M.

Further, determining in the process of Deplexing method by above-mentioned steps 1 and step 2, if suitable Deplexing method cannot be determined, except above-mentioned by again dividing into groups and then determining Deplexing method, can also by the pre-conditioned realization of adjustment, the present invention does not specifically limit this.

Exemplary, suppose that 8 dispensing devices participate in multiplexing, 8 multiplexing dispensing devices of participation are designated as UE1 ~ UE8 respectively; Pre-conditioned group comprises condition 1, condition 2 and condition 3; The corresponding CS algorithm of condition 1, the dispensing device quantity of support is 4; The corresponding FF algorithm of condition 2, the dispensing device quantity of support is 2; The corresponding OCC algorithm of condition 3, the dispensing device quantity of support is 2;

Suppose again transmission feature parameter between these 8 dispensing devices and pre-conditioned group to meet situation as shown in table 6 below:

Table 6

Suppose, be divided into M=4 dispensing device group (using UE1 and UE2 as the first dispensing device group 8 dispensing devices in step 1; Using UE3 and UE4 as the second dispensing device group; Using UE5 and UE6 as the first dispensing device group; Using UE7 and UE8 as the second dispensing device group);

Determine the CS algorithm demultiplexing that can adopt condition 1 correspondence in the first dispensing device group and the second dispensing device group; Determine the OCC algorithm demultiplexing that can adopt condition 3 correspondence in the 3rd dispensing device group and the 4th dispensing device group;

According to the example of table 6, transmission feature parameter between first dispensing device group (UE1 and UE2), the second dispensing device group (UE3 and UE4), the 3rd dispensing device group (UE5 and UE6), the 4th dispensing device group (UE7 and UE8) satisfies condition 2, but again because the corresponding FF algorithm of condition 2, the dispensing device quantity supported is 2, and the dispensing device quantity that the FF algorithm of quantity M=4 greater than condition 2 correspondence of dispensing device group is supported, therefore, Deplexing method cannot be determined;

Now, can be pre-conditioned by adjustment, namely select the transmission feature parameter of the dispensing device in the first dispensing device group and the second dispensing device group to satisfy condition 2, adopt the FF algorithm demultiplexing of condition 2 correspondence;

Like this, according to the example of table 6, the transmission feature parameter between the first dispensing device group (UE1 and UE2), the second dispensing device group (UE3 and UE4), the 3rd dispensing device group (UE5 and UE6), the 4th dispensing device group (UE7 and UE8) satisfies condition 1; Again because the corresponding CS algorithm of condition 1, the dispensing device quantity of support is 4, and the quantity M=4 of dispensing device group equals the dispensing device quantity that the corresponding CS algorithm of condition 1 is supported, therefore, can adopt CS algorithm demultiplexing between four dispensing device groups;

Therefore, determine that Deplexing method is first adopt CS algorithm, then adopt FF algorithm and OCC algorithm respectively.

It should be noted that, above-mentioned example just describes for the citing of the processing mode when determining Deplexing method, is not the concrete restriction to this.When Deplexing method cannot be determined, can also adjust by other means grouping or pre-conditioned, until determine Deplexing method; As long as finally determined the mode of Deplexing method by adjustment, all belong to protection scope of the present invention.

S303, according to Deplexing method, determine the coded system of each dispensing device in X dispensing device;

Wherein, according to the multiplexing method of multiplexing X the dispensing device of the participation determined, determine that the process of the coded system participating in each dispensing device in X multiplexing dispensing device has been described in detail in embodiment one, no longer repeat herein.

S304, send coded system to X dispensing device;

Send coded system for X dispensing device, be described in detail in embodiment one, no longer repeated herein.

S305, reception multiplexed signals;

Wherein, multiplexed signals comprises respectively from participating in X reception reference signal of X multiplexing dispensing device and receiving the time-multiplexed X of a reference signal data-signal with X; Wherein, first the reference signal of original reference signals after transmission that reference signal is the first dispensing device transmission is received; Original reference signals is that dispensing device Reference Signal basic sequence is generated by the coded system coding received; First reception reference signal is X any one receiving in reference signal.

S306, according to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.

The process being obtained channel-estimation information by demultiplexing is described below respectively in exemplary fashion:

Example 1: suppose that 4 dispensing devices are respectively UE0, UE1, UE2 and UE3;

Suppose that be grouped into UE0, UE1 are in step s 302 divided into the first dispensing device group, UE2, UE3 are divided into the second dispensing device group, and the Deplexing method determined is: first adopt FF algorithm, then adopt CS algorithm respectively.

Concrete, obtaining channel-estimation information by the above-mentioned Deplexing method determined can comprise:

First adopt FF algorithm;

FF demultiplexing needs with k and k+2n subcarrier data; Preferably, n=1;

The multiplexed signals received on a kth subcarrier is the Y (k) shown in following formula (8), and the multiplexed signals received on kth+2 subcarriers is the Y (k+2) shown in following formula (8);

$\left\{\begin{array}{c}Y\left(k\right)=H_0\left(k\right)S_0\left(k\right)+H_1\left(k\right)S_1\left(k\right)+H_2\left(k\right)S_2\left(k\right)+H_3\left(k\right)S_3\left(k\right)+N\left(k\right)\\ Y(k+2)=H_0(k+2)S_0(k+2)+H_1(k+2)S_1(k+2)+H_2(k+2)S_2(k+2)+H_3(k+2)S_3(k+2)+N(k+2)\end{array}\right.$

Formula (9);

Ratio juris is calculated according to FF, because coherence bandwidth meets the channel approximately equal on an adjacent 1+2n subcarrier, and during preferred n=1, this formula is substituted into formula (10), can obtain:

$\left\{\begin{array}{c}Y\left(k\right)=(H_0+H_1{e}^{\mathrm{j\πk}})S_0\left(k\right)+(H_2+H_3{e}^{\mathrm{j\πk}})S_2\left(k\right)+N\left(k\right)\\ Y(k+2)=(H_0+H_1{e}^{\mathrm{j\π}(k+2)})S_0(k+2)+(H_2+H_3{e}^{\mathrm{j\π}(k+2)})S_2(k+2)+N(k+2)\end{array}\right.$

Formula (11);

Solution formula (12) equation group, can obtain H ₀+ H ₁e ^{j π k}and H ₂+ H ₃e ^{j π k}, be the channel-estimation information median of the first dispensing device group and the channel-estimation information median of the second dispensing device group;

Adopt CS algorithm again;

Owing to adopting CS algorithm in group in first device group and the second device group, therefore, the resolution of CS is maximum can be , in order to ensure that CS algorithm to the resolution of dispensing device is , the phase relation of two dispensing devices in the group of each dispensing device group meets phase rotating phase difference of pi, that is, H _i+ H _je ^{j π (k+2n)}=H _i+ H _je ^{j π k}, wherein i and j represents the mark of the dispensing device in dispensing device group group; The CS algorithm described in embodiment one is utilized to be separated H ₀and H ₁, and H ₂and H ₃, no longer repeat herein.

Like this, UE0, UE1, UE2 and UE3 channel-estimation information H to receiving system is just got ₀, H ₁, H ₂and H ₃.

Example 2: suppose that 4 dispensing devices are respectively UE0, UE1, UE2 and UE3;

Suppose that be grouped into UE0, UE1 are in step s 302 divided into the first dispensing device group, UE2, UE3 are divided into the second dispensing device group, and the Deplexing method determined is: first adopt OCC algorithm, then adopt FF algorithm respectively.

Concrete, obtaining channel-estimation information by the above-mentioned Deplexing method determined can comprise:

First adopt OCC algorithm;

Receive τ ₀multiplexed signals on an individual time slot kth subcarrier is Y (k, the τ shown in following formula (10) ₀), receive τ ₁multiplexed signals on an individual time slot kth subcarrier is Y (k, the τ shown in following formula (10) ₁);

$\left\{\begin{array}{c}Y(k,{\mathrm{\τ}}_0)=H_0(k,{\mathrm{\τ}}_0)S_0(k,{\mathrm{\τ}}_0)+H_1(k,{\mathrm{\τ}}_0)S_1(k,{\mathrm{\τ}}_0)+H_2(k,{\mathrm{\τ}}_0)S_2(k,{\mathrm{\τ}}_0)+H_3(k,{\mathrm{\τ}}_0)S_3(k,{\mathrm{\τ}}_0)+N(k,{\mathrm{\τ}}_0)\\ Y(k,{\mathrm{\τ}}_1)=H_0(k,{\mathrm{\τ}}_1)S_0(k,{\mathrm{\τ}}_1)+H_1(k,{\mathrm{\τ}}_1)S_1(k,{\mathrm{\τ}}_1)-H_2(k,{\mathrm{\τ}}_1)S_2(k,{\mathrm{\τ}}_1)-H_3(k,{\mathrm{\τ}}_1)S_3(k,{\mathrm{\τ}}_1)+N(k,{\mathrm{\τ}}_1)\end{array}\right.$

Formula (13);

According to OCC algorithm principle, in a subframe, channel is accurate static, namely $H_u(k,{\mathrm{\τ}}_0)=H_u(k,{\mathrm{\τ}}_1)\stackrel{\mathrm{\Δ}}{=}{H}_u;$

Therefore, ratio juris solution formula (14) equation can be calculated according to the OCC in embodiment one and obtain the first dispensing device group (UE0, UE1) channel-estimation information median, the second dispensing device group (UE2, UE3) channel-estimation information median;

Adopt FF algorithm again;

Calculate ratio juris according to the FF in difference embodiment one again, FF algorithm is adopted respectively to two dispensing device group channel-estimation information medians, be separated and obtain UE0, UE1, UE2 and UE3, namely can obtain the channel-estimation information H of UE0 ~ UE1 to receiving system respectively ₀, H ₁, H ₂and H ₃.

The demultiplexing process describing FF algorithm and OCC algorithm detailed in embodiment one, no longer repeats herein.

Example 3: suppose that 8 dispensing devices are respectively UE0, UE1, UE2, UE3, UE4, UE5, UE6 and UE7;

Suppose that be grouped into UE0, UE1 are in step s 302 divided into the first dispensing device group, UE2, UE3 are divided into the second dispensing device group, and UE4, UE5 are divided into the 3rd dispensing device group, and UE6, UE7 are divided into the 4th dispensing device group; First dispensing device group and the second dispensing device component are the first dispensing device set, 3rd dispensing device group and the 4th dispensing device component are the second dispensing device set, the Deplexing method determined is: first adopt FF algorithm, then adopts OCC algorithm respectively, then adopts CS algorithm respectively.

Concrete, obtaining channel-estimation information by the above-mentioned Deplexing method determined can comprise:

First adopt FF algorithm;

FF demultiplexing needs with k and k+2n subcarrier data; Preferably, n=1;

The multiplexed signals received on a kth subcarrier is the Y (k) shown in following formula (11), and the multiplexed signals received on kth+2 subcarriers is the Y (k+2) shown in following formula (11);

$\left\{\begin{array}{c}Y\left(k\right)=\underset{u=0}{\overset{3}{\mathrm{\Σ}}}{H}_u\left(k\right)S_u\left(k\right)+\underset{u=4}{\overset{7}{\mathrm{\Σ}}}{H}_u\left(k\right)S_u\left(k\right)+N\left(k\right)\\ Y(k+2)=\underset{u=0}{\overset{3}{\mathrm{\Σ}}}{H}_u(k+2)S_u(k+2)+\underset{u=4}{\overset{7}{\mathrm{\Σ}}}{H}_u(k+2)S_u(k+2)+N(k+2)\end{array}\right.$

Formula (15);

According to FF principle, this formula is brought into formula (16), the first dispensing device aggregate channel estimated information median, the second dispensing device aggregate channel estimated information median can be obtained;

Adopt OCC algorithm respectively again;

OCC algorithm is adopted to the first dispensing device aggregate channel estimated information median, obtains the first dispensing device group channel-estimation information median, the second dispensing device group channel-estimation information median;

OCC algorithm is adopted to the second dispensing device aggregate channel estimated information median, obtains the 3rd dispensing device group channel-estimation information median, the 4th dispensing device group channel-estimation information median;

Adopt CS algorithm respectively again;

CS algorithm is adopted to the first dispensing device group channel-estimation information median, obtains UE0 to the channel-estimation information of receiving system, UE1 to the channel-estimation information of receiving system;

CS algorithm is adopted to the second dispensing device group channel-estimation information median, obtains UE2 to the channel-estimation information of receiving system, UE3 to the channel-estimation information of receiving system;

CS algorithm is adopted to the 3rd dispensing device group channel-estimation information median, obtains UE4 to the channel-estimation information of receiving system, UE5 to the channel-estimation information of receiving system;

CS algorithm is adopted to the 4th dispensing device group channel-estimation information median, obtains UE6 to the channel-estimation information of receiving system, UE7 to the channel-estimation information of receiving system.

It should be noted that, the demultiplexing process of each algorithm has been described in detail in embodiment one, no longer repeats herein.

Example 4: suppose that 8 dispensing devices are respectively UE0, UE1, UE2, UE3, UE4, UE5, UE6 and UE7;

Suppose that be grouped into UE0, UE1 are in step s 302 divided into the first dispensing device group, UE2, UE3 are divided into the second dispensing device group, and UE4, UE5 are divided into the 3rd dispensing device group, and UE6, UE7 are divided into the 4th dispensing device group; First dispensing device group and the second dispensing device component are the first dispensing device set, 3rd dispensing device group and the 4th dispensing device component are the second dispensing device set, the Deplexing method determined is: first adopt OCC algorithm, then adopts FF algorithm respectively, then adopts CS algorithm respectively.

Concrete, obtaining channel-estimation information by the above-mentioned Deplexing method determined can comprise:

First adopt OCC algorithm;

Receive τ ₀multiplexed signals on an individual time slot kth subcarrier is Y (k, the τ shown in following formula (12) ₀), receive τ ₁multiplexed signals on an individual time slot kth subcarrier is Y (k, the τ shown in following formula (12) ₁);

$\left\{\begin{array}{c}Y(k,{\mathrm{\τ}}_0)=\underset{u=0}{\overset{3}{\mathrm{\Σ}}}{H}_u(k,{\mathrm{\τ}}_0)S_u(k,{\mathrm{\τ}}_0)+\underset{u=4}{\overset{7}{\mathrm{\Σ}}}{H}_u(k,{\mathrm{\τ}}_0)S_u(k,{\mathrm{\τ}}_0)+N(k,{\mathrm{\τ}}_0)\\ Y(k,{\mathrm{\τ}}_1)=\underset{u=0}{\overset{3}{\mathrm{\Σ}}}{H}_u(k,{\mathrm{\τ}}_1)S_u(k,{\mathrm{\τ}}_1)-\underset{u=4}{\overset{7}{\mathrm{\Σ}}}{H}_u(k,{\mathrm{\τ}}_1)S_u(k,{\mathrm{\τ}}_1)+N(k,{\mathrm{\τ}}_1)\end{array}\right.$

Formula (12);

According to OCC algorithm principle, in a subframe, channel is accurate static, namely this formula is brought into formula (12), the first dispensing device aggregate channel estimated information median, the second dispensing device aggregate channel estimated information median can be obtained;

Adopt FF algorithm respectively again;

FF algorithm is adopted to the first dispensing device aggregate channel estimated information median, obtains the first dispensing device group channel-estimation information median, the second dispensing device group channel-estimation information median;

FF algorithm is adopted to the second dispensing device aggregate channel estimated information median, obtains the 3rd dispensing device group channel-estimation information median, the 4th dispensing device group channel-estimation information median;

Adopt CS algorithm respectively again;

CS algorithm is adopted to the first dispensing device group channel-estimation information median, obtains UE0 to the channel-estimation information of receiving system, UE1 to the channel-estimation information of receiving system;

CS algorithm is adopted to the second dispensing device group channel-estimation information median, obtains UE2 to the channel-estimation information of receiving system, UE3 to the channel-estimation information of receiving system;

CS algorithm is adopted to the 3rd dispensing device group channel-estimation information median, obtains UE4 to the channel-estimation information of receiving system, UE5 to the channel-estimation information of receiving system;

CS algorithm is adopted to the 4th dispensing device group channel-estimation information median, obtains UE6 to the channel-estimation information of receiving system, UE7 to the channel-estimation information of receiving system.

It should be noted that, the demultiplexing process of each algorithm has been described in detail in embodiment one, no longer repeats herein.

The embodiment of the present invention provides a kind of method obtaining channel-estimation information, by obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported; According to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method; Wherein, Deplexing method comprises at least two kinds of algorithms; According to Deplexing method, determine the coded system of each dispensing device in X dispensing device; Coded system is sent to X dispensing device; Receive multiplexed signals; Wherein, multiplexed signals comprise respectively from X dispensing device reference signal and with reception reference signal time-multiplexed data-signal; According to local reference signal, utilize orthogonality principle, at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.So, because the Deplexing method determined according to the multiple transmission feature parameters participating in X multiplexing dispensing device at least comprises two kinds of algorithms, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals and obtain channel-estimation information, make when the quantity participating in multiplexing dispensing device is more, the Deplexing method determined is high with the quantity and transmission feature parameter matching degree participating in multiplexing dispensing device, and the combination of at least two kinds of algorithms has played the advantage of various algorithm, can more in the quantity participating in multiplexing dispensing device time still can estimate between dispensing device and receiving system channel-estimation information accurately, solve in prior art, when the quantity participating in multiplexing dispensing device is more, do not have effective Deplexing method can estimate the defect of the channel-estimation information between dispensing device and receiving system accurately.

Embodiment three

Example three of the present invention provides the another kind of method obtaining channel-estimation information, to participate in multiplexing dispensing device for UE, receiving system for base station for the method for example to the acquisition channel-estimation information shown in Fig. 3 is described in detail;

Suppose that 8 UE participate in multiplexing, be designated as UE0, UE1, UE2, UE3, UE4, UE5, UE6, UE7 respectively, see Fig. 4, described method can comprise:

The transmission feature parameter of S401, base station acquisition UE0 ~ UE7;

Wherein, the coherence bandwidth that the transmission feature parameter of UE comprises UE sends the bandwidth of resource shared by signal and position, UE sends the subcarrier of the resource shared by signal interval, the Release version of UE, the translational speed of UE, UE send the resource shared by signal;

The transmission feature parameter of UE0 ~ UE7 that base station obtains is as shown in table 7:

Table 7

It should be noted that, table 7 is just described transmission feature parameter in exemplary fashion, is not the concrete restriction of value to transmission feature parameter and form.

8 dispensing devices are divided into 4 dispensing device groups by S402, the quantity of dispensing device supported according to the algorithm of the transmission feature parameter of UE0 ~ UE7, pre-conditioned group, the pre-conditioned group pre-conditioned correspondence of each comprising;

Exemplary, suppose that pre-conditioned group of comprise pre-conditioned is:

Condition 1: the bandwidth of the resource that dispensing device transmission signal takies and position overlap completely;

Condition 2: the interval that dispensing device sends the subcarrier of the resource that signal takies is less than or equal to the first predetermined threshold value;

Condition 3: the translational speed of dispensing device is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10;

Wherein, the corresponding CS algorithm of condition 1, the quantity of the dispensing device of CS algorithm support is 4; The corresponding FF algorithm of condition 2, the quantity of the dispensing device of FF algorithm support is 2; The corresponding OCC algorithm of condition 3, the quantity of the dispensing device of OCC algorithm support is 2;

According to the transmission feature parameter shown in table 7, the transmission feature parameter of UE0 ~ UE7 and the situation that meets of pre-conditioned group are:

Bandwidth and the position of the resource of UE0 ~ UE3 transmission shared by signal overlap completely; Bandwidth and the position of the resource of UE4 ~ UE7 transmission shared by signal overlap completely;

The coherence bandwidth of UE0 ~ UE7 be all greater than subcarrier spacing (because subcarrier spacing is predefined by system, i.e. 15KHz; Under existing LTE system, coherence bandwidth is all generally the several times of subcarrier spacing);

The version of UE0 ~ UE7 is higher than Release10 and translational speed is less than 3Km/h;

Therefore, UE0 ~ UE7 is divided into 4 dispensing device groups: dispensing device group 1 (UE0, UE1), dispensing device group 2 (UE2, UE3), dispensing device group 3 (UE4, UE5), dispensing device group 4 (UE6, UE7).

S403, according to the transmission feature parameter of 4 dispensing device groups and pre-conditioned group, determine Deplexing method;

Concrete, according to the transmission feature parameter of 4 dispensing device groups and pre-conditioned group, determine Deplexing method, following two kinds of situations can be comprised:

The first situation:

Because in any one dispensing device group in 4 dispensing device groups, the transmission feature parameter of dispensing device satisfies condition 1, transmission feature parameter between 4 dispensing device groups satisfies condition 2, M=4 is greater than O=2, be N=2 dispensing device set by 4 dispensing device components: the first dispensing device set (dispensing device group 1, dispensing device group 2), the second dispensing device set (dispensing device group 3, dispensing device group 4);

According to known shown in table 7, transmission feature parameter between 2 dispensing device set 3, the N=2 that satisfies condition equals P=2, determines that Deplexing method is the OCC algorithm first adopting condition 3 correspondence, adopt the FF algorithm of condition 2 correspondence more respectively, then adopt the CS algorithm of condition 1 correspondence respectively.

The second situation:

Because in any one dispensing device group in 4 dispensing device groups, the transmission feature parameter of dispensing device satisfies condition 1, transmission feature parameter between 4 dispensing device groups satisfies condition 3, M=4 is greater than O=2, be N=2 dispensing device set by 4 dispensing device components: the first dispensing device set (dispensing device group 1, dispensing device group 2), the second dispensing device set (dispensing device group 3, dispensing device group 4);

According to known shown in table 7, the transmission feature parameter between 2 dispensing device set can not satisfy condition 2, therefore, cannot determine Deplexing method;

Now, can grouping be re-started, or be adjusted to the determination Deplexing method of the first situation, thus determine Deplexing method.

S404, according to Deplexing method, determine the coded system of each UE in UE0 ~ UE7;

According to Deplexing method, the coded system determined for each UE is:

Table 8

The mark of UE	CS is shifted	Standard OCC encodes	FF encodes
				UE0	0	[1,1]	[1,1]
UE1	6	[1,-1]	[1,1]
				UE2	0	[1,-1]	[1,1]
UE3	6	[1,1]	[1,1]
				UE4	3	[1,1]	[1,1]
UE5	9	[1,-1]	[1,1]
				UE6	3	[1,-1]	[1,1]
UE7	9	[1,1]	[1,1]

S405, according to the coded system of each UE in the UE0 ~ UE7 determined and default corresponding relation, obtain and preset in corresponding relation, the mark of the coded system that the coded system of each UE is corresponding in UE0 ~ UE7;

Concrete, according to the default corresponding relation shown in table 9, obtain and preset in corresponding relation, the mark of the coded system that the coded system of each UE is corresponding in UE0 ~ UE7.

Table 9

Coded system identifies	Coded system
		0	Coded system 0
1	Coded system 1
		2	Coded system 2
3	Coded system 3
		……	……
n	Coded system n

In the UE0 ~ UE7 obtained, the corresponding relation of the coded system mark of each UE and the mark of UE is as shown in table 10:

Table 10

S406, respectively the mark of coded system corresponding for the coded system of each UE is sent to UE;

Concrete, respectively the mark of the coded system of each UE in UE0 ~ UE7 is issued in form of a message corresponding UE, such as, send message: <0> to UE0; Message: <1> is sent to UE1; Message: <2> is sent to UE2; By that analogy, mark corresponding to the coded system of this UE is sent to each UE.

The multiplexed signals of S407, reception UE0 ~ UE7;

Wherein, multiplexed signals comprises and receives reference signals from 8 of UE0 ~ UE7 and receive time-multiplexed 8 data-signals of reference signal with 8 respectively.

S408, the local reference signal corresponding according to the reception reference signal of UE0 ~ UE7, utilize orthogonality principle, what adopt Deplexing method to comprise carries out at least twice parsing to multiplexed signals, obtains the channel-estimation information between each dispensing device and receiving system in 8 dispensing devices.

For the process adopting each algorithm demultiplexing, embodiment one has been described in detail, and no longer repeats herein.

The embodiment of the present invention provides a kind of method obtaining channel-estimation information, by obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter comprises the coherence bandwidth of the bandwidth that sends resource shared by signal and position, the interval of subcarrier of resource shared by transmission signal, Release version, translational speed, resource shared by transmission signal; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported; According to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method; Wherein, Deplexing method comprises at least two kinds of algorithms; According to Deplexing method, determine the coded system of each dispensing device in X dispensing device; Coded system is sent to X dispensing device; Receive multiplexed signals; Wherein, multiplexed signals comprise respectively from X dispensing device reference signal and with reception reference signal time-multiplexed data-signal; According to local reference signal, utilize orthogonality principle, at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.So, because the Deplexing method determined according to the multiple transmission feature parameters participating in X multiplexing dispensing device at least comprises two kinds of algorithms, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals and obtain channel-estimation information, make when the quantity participating in multiplexing dispensing device is more, the Deplexing method determined is high with the quantity and transmission feature parameter matching degree participating in multiplexing dispensing device, and the combination of at least two kinds of algorithms has played the advantage of various algorithm, can more in the quantity participating in multiplexing dispensing device time still can estimate between dispensing device and receiving system channel-estimation information accurately, solve in prior art, when the quantity participating in multiplexing dispensing device is more, do not have effective Deplexing method can estimate the defect of the channel-estimation information between dispensing device and receiving system accurately.

Embodiment four

The embodiment of the present invention four provides another kind of receiving system 20, and as shown in Figure 5, receiving system 20 can comprise:

At least one processor 501; At least one communication bus 502, for the connection between implement device with intercom mutually, transmitter 503, receiver 504;

Wherein, communication bus 502 can be industry standard architecture (IndustryStandardArchitecture, referred to as ISA) bus, peripheral component interconnect (PeripheralComponent, referred to as PCI) bus or extended industry-standard architecture (ExtendedIndustryStandardArchitecture, referred to as EISA) bus etc.This bus can be divided into address bus, data/address bus, control bus etc.For ease of representing, only representing with a thick line in Fig. 5, but not representing the bus only having a bus or a type.

Processor 501 may be a central processing unit (CentralProcessingUnit, referred to as CPU), or specific integrated circuit (ApplicationSpecificIntegratedCircuit, referred to as ASIC), or be configured to the one or more integrated circuits implementing the embodiment of the present invention.

Wherein, processor 501 is for obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; Described X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that described receiving system is supported;

Preferably, described transmission feature parameter comprises the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed;

Further, processor 501 can also be used for, and according to the transmission feature parameter of each dispensing device in described X the dispensing device obtained, determines Deplexing method; Wherein, described Deplexing method comprises at least two kinds of algorithms;

Further, processor 501 can also be used for, and according to described Deplexing method, determines the coded system of each dispensing device in a described X dispensing device;

Transmitter 503 for, send coded system to described X dispensing device;

Receiver 504 for, receive multiplexed signals; Wherein, described multiplexed signals comprise respectively from a described X dispensing device reference signal and with the time-multiplexed data-signal of described reception reference signal;

Further, processor 501 can also be used for according to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting described Deplexing method to comprise carry out at least twice parsing to described multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in a described X dispensing device.

Further, processor 501 specifically can also be used for:

According to the transmission feature parameter of each dispensing device in a described X dispensing device, pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group; Wherein, described M is more than or equal to 2;

According to the transmission feature parameter of described M dispensing device group and described pre-conditioned group, determine described Deplexing method;

Wherein, described pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

Optionally, processor 501 specifically may be used for:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets second pre-conditioned, described M is less than or equal to O, determine that described Deplexing method is the algorithm first adopting described second pre-conditioned correspondence, then adopt the algorithm of described first pre-conditioned correspondence respectively;

Wherein, described first pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described second pre-conditioned pre-conditioned for being different from described first pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described second pre-conditioned correspondence is supported.

Optionally, processor 501 specifically may be used for:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets the 4th pre-conditioned, described M is greater than described O, is N number of dispensing device set by described M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between described N number of dispensing device set meets the 5th pre-conditioned, described N is less than or equal to described P, determine that described Deplexing method is the algorithm first adopting described 5th pre-conditioned correspondence, adopt the algorithm of described 4th pre-conditioned correspondence more respectively, then adopt the algorithm of described 3rd pre-conditioned correspondence respectively;

Wherein, described 3rd pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 4th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned any one in described pre-conditioned group; Described 5th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned and described 4th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that described P is less than or equal to described 5th pre-conditioned correspondence is supported.

Optionally, processor 501 specifically may be used for:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in described M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between described M dispensing device group meets the 8th pre-conditioned, described M is less than or equal to Q, determine that described Deplexing method is the algorithm first adopting described 8th pre-conditioned correspondence, then adopt the algorithm of described 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, described 6th pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 7th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned any one in described pre-conditioned group; Described 8th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned and described 7th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described Q is less than or equal to described 8th pre-conditioned correspondence is supported.

Further, processor 501 can also be used for, if described N is greater than described P, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described P to make described N.

Further, processor 501 can also be used for, if described M is greater than described Q, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described Q to make described M.

Further, described transmission feature parameter can also comprise:

Send the coherence bandwidth of the resource shared by signal;

Accordingly, described first predetermined threshold value is for sending the coherence bandwidth of the resource shared by signal.

Concrete, described transmitter 503 specifically may be used for:

According to the coded system of each dispensing device described, obtain respectively and preset in corresponding relation, the mark of the coded system that the coded system of each dispensing device described is corresponding; The mark of the coded system that the coded system of each dispensing device is corresponding described in sending to described X dispensing device; Wherein, described default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with described coded system;

Or,

The coded system of each dispensing device described is sent to described X dispensing device.

The embodiment of the present invention provides a kind of receiving system 20, by obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported; According to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method; Wherein, Deplexing method comprises at least two kinds of algorithms; According to Deplexing method, determine the coded system of each dispensing device in X dispensing device; Coded system is sent to X dispensing device; Receive multiplexed signals; Wherein, multiplexed signals comprise respectively from X dispensing device reference signal and with reception reference signal time-multiplexed data-signal; According to local reference signal, utilize orthogonality principle, at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.So, because the Deplexing method determined according to the multiple transmission feature parameters participating in X multiplexing dispensing device at least comprises two kinds of algorithms, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals and obtain channel-estimation information, make when the quantity participating in multiplexing dispensing device is more, the Deplexing method determined is high with the quantity and transmission feature parameter matching degree participating in multiplexing dispensing device, and the combination of at least two kinds of algorithms has played the advantage of various algorithm, can more in the quantity participating in multiplexing dispensing device time still can estimate between dispensing device and receiving system channel-estimation information accurately, solve in prior art, when the quantity participating in multiplexing dispensing device is more, do not have effective Deplexing method can estimate the defect of the channel-estimation information between dispensing device and receiving system accurately.

Embodiment five

The embodiment of the present invention five provides a kind of system 60 obtaining channel-estimation information, see Fig. 6, comprising:

X dispensing device;

Receiving system 20 described in above-mentioned any embodiment.

The Function and operation of receiving system 20 has been described in detail hereinbefore, no longer repeats at this.

The embodiment of the present invention provides a kind of system 60 obtaining channel-estimation information, by obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that receiving system is supported; According to the transmission feature parameter of each dispensing device in X dispensing device, determine Deplexing method; Wherein, Deplexing method comprises at least two kinds of algorithms; According to Deplexing method, determine the coded system of each dispensing device in X dispensing device; Coded system is sent to X dispensing device; Receive multiplexed signals; Wherein, multiplexed signals comprise respectively from X dispensing device reference signal and with reception reference signal time-multiplexed data-signal; According to local reference signal, utilize orthogonality principle, at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in X dispensing device.So, because the Deplexing method determined according to the multiple transmission feature parameters participating in X multiplexing dispensing device at least comprises two kinds of algorithms, the at least two kinds of algorithms adopting Deplexing method to comprise carry out at least twice parsing to multiplexed signals and obtain channel-estimation information, make when the quantity participating in multiplexing dispensing device is more, the Deplexing method determined is high with the quantity and transmission feature parameter matching degree participating in multiplexing dispensing device, and the combination of at least two kinds of algorithms has played the advantage of various algorithm, can more in the quantity participating in multiplexing dispensing device time still can estimate between dispensing device and receiving system channel-estimation information accurately, solve in prior art, when the quantity participating in multiplexing dispensing device is more, do not have effective Deplexing method can estimate the defect of the channel-estimation information between dispensing device and receiving system accurately.

Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit comprises, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.

The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-OnlyMemory, be called for short ROM), random access memory (RandomAccessMemory, be called for short RAM), magnetic disc or CD etc. various can be program code stored medium.

Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (21)

1. a receiving system, is characterized in that, comprising:

Acquiring unit, for obtaining the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; Described X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that described receiving system is supported;

Determining unit, for the transmission feature parameter of each dispensing device in described X dispensing device obtaining according to described acquiring unit, determines Deplexing method; Wherein, described Deplexing method comprises at least two kinds of algorithms;

Described determining unit also for, according to described Deplexing method, determine the coded system of each dispensing device in a described X dispensing device;

Transmitting element, for sending coded system to described X dispensing device;

Receiving element, for receiving multiplexed signals; Wherein, described multiplexed signals comprise respectively from a described X dispensing device reference signal and with the time-multiplexed data-signal of described reception reference signal;

Demultiplexing unit, for according to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting described Deplexing method to comprise carry out at least twice parsing to described multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in a described X dispensing device.

2. receiving system according to claim 1, is characterized in that, described transmission feature parameter comprises the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed.

3. receiving system according to claim 1 and 2, is characterized in that, described determining unit specifically for:

According to the transmission feature parameter of each dispensing device in a described X dispensing device, pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group; Wherein, described M is more than or equal to 2;

According to the transmission feature parameter of described M dispensing device group and described pre-conditioned group, determine described Deplexing method;

Wherein, described pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

4. receiving system according to claim 3, is characterized in that, described determining unit specifically for:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets second pre-conditioned, described M is less than or equal to O, determine that described Deplexing method is the algorithm first adopting described second pre-conditioned correspondence, then adopt the algorithm of described first pre-conditioned correspondence respectively;

Wherein, described first pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described second pre-conditioned pre-conditioned for being different from described first pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described second pre-conditioned correspondence is supported.

5. the receiving system according to claim 3 or 4, is characterized in that, described determining unit specifically for:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets the 4th pre-conditioned, described M is greater than described O, is N number of dispensing device set by described M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between described N number of dispensing device set meets the 5th pre-conditioned, described N is less than or equal to described P, determine that described Deplexing method is the algorithm first adopting described 5th pre-conditioned correspondence, adopt the algorithm of described 4th pre-conditioned correspondence more respectively, then adopt the algorithm of described 3rd pre-conditioned correspondence respectively;

Wherein, described 3rd pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 4th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned any one in described pre-conditioned group; Described 5th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned and described 4th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that described P is less than or equal to described 5th pre-conditioned correspondence is supported.

6. the receiving system according to any one of claim 3-5, is characterized in that, described determining unit specifically for:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in described M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between described M dispensing device group meets the 8th pre-conditioned, described M is less than or equal to Q, determine that described Deplexing method is the algorithm first adopting described 8th pre-conditioned correspondence, then adopt the algorithm of described 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, described 6th pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 7th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned any one in described pre-conditioned group; Described 8th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned and described 7th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described Q is less than or equal to described 8th pre-conditioned correspondence is supported.

7. receiving system according to claim 5, is characterized in that, described determining unit also for:

If described N is greater than described P, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described P to make described N.

8. receiving system according to claim 6, is characterized in that, described determining unit also for:

If described M is greater than described Q, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described Q to make described M.

9. the receiving system according to any one of claim 1-8, is characterized in that, described transmission feature parameter also comprises:

Send the coherence bandwidth of the resource shared by signal;

Accordingly, described first predetermined threshold value is for sending the coherence bandwidth of the resource shared by signal.

10. the receiving system according to any one of claim 1-9, is characterized in that, described transmitting element specifically for:

According to the coded system of each dispensing device described, obtain respectively and preset in corresponding relation, the mark of the coded system that the coded system of each dispensing device described is corresponding; The mark of the coded system that the coded system of each dispensing device is corresponding described in sending to described X dispensing device; Wherein, described default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with described coded system;

Or,

The coded system of each dispensing device described is sent to described X dispensing device.

11. 1 kinds of methods obtaining channel-estimation information, is characterized in that, comprising:

Obtain the transmission feature parameter of each dispensing device in X dispensing device; Wherein, described transmission feature parameter is the parameter of the Deplexing method necessary dispensing device transmission signal for determining at least to comprise two kinds of algorithms; Described X is more than or equal to 2 and is less than or equal to the quantity of the multiplexing transmitter that described receiving system is supported;

According to the transmission feature parameter of each dispensing device in a described X dispensing device, determine Deplexing method; Wherein, described Deplexing method comprises at least two kinds of algorithms;

According to described Deplexing method, determine the coded system of each dispensing device in a described X dispensing device;

Coded system is sent to described X dispensing device;

Receive multiplexed signals; Wherein, described multiplexed signals comprise respectively from a described X dispensing device reference signal and with the time-multiplexed data-signal of described reception reference signal;

According to local reference signal, utilize orthogonality principle, the at least two kinds of algorithms adopting described Deplexing method to comprise carry out at least twice parsing to described multiplexed signals, obtain the channel-estimation information between each dispensing device and receiving system in a described X dispensing device.

The method of 12. acquisition channel-estimation information according to claim 11, is characterized in that, described transmission feature parameter comprises the bandwidth of resource that sends signal and position, the interval of subcarrier of resource of transmission signal, Release version, translational speed.

The method of 13. acquisition channel-estimation information according to claim 11 or 12, is characterized in that the described transmission feature parameter according to each dispensing device in a described X dispensing device is determined Deplexing method, being comprised:

According to the transmission feature parameter of each dispensing device in a described X dispensing device, pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group; Wherein, described M is more than or equal to 2;

According to the transmission feature parameter of described M dispensing device group and described pre-conditioned group, determine described Deplexing method;

Wherein, described pre-conditioned group comprise following pre-conditioned at least two: send the bandwidth of resource that signal takies and position overlap completely, send the subcarrier of the resource that signal takies interval is less than or equal to the first predetermined threshold value, translational speed is less than or equal to the second predetermined threshold value and version is equal to or higher than Release10.

The method of 14. acquisition channel-estimation information according to claim 13, is characterized in that, the described transmission feature parameter according to described M dispensing device group and described pre-conditioned group, determines described Deplexing method, comprising:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets first pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets second pre-conditioned, described M is less than or equal to O, determine that described Deplexing method is the algorithm first adopting described second pre-conditioned correspondence, then adopt the algorithm of described first pre-conditioned correspondence respectively;

Wherein, described first pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described second pre-conditioned pre-conditioned for being different from described first pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described second pre-conditioned correspondence is supported.

The method of 15. acquisition channel-estimation information according to claim 13 or 14, is characterized in that, the described transmission feature parameter according to described M dispensing device group and described pre-conditioned group, determines described Deplexing method, comprising:

If in any one dispensing device group, the transmission feature parameter of dispensing device meets the 3rd pre-conditioned in described M dispensing device group, transmission feature parameter between described M dispensing device group meets the 4th pre-conditioned, described M is greater than described O, is N number of dispensing device set by described M dispensing device component; Wherein, O dispensing device group is comprised at the most in described dispensing device set;

If the transmission feature parameter between described N number of dispensing device set meets the 5th pre-conditioned, described N is less than or equal to described P, determine that described Deplexing method is the algorithm first adopting described 5th pre-conditioned correspondence, adopt the algorithm of described 4th pre-conditioned correspondence more respectively, then adopt the algorithm of described 3rd pre-conditioned correspondence respectively;

Wherein, described 3rd pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 4th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned any one in described pre-conditioned group; Described 5th pre-conditioned pre-conditioned for being different from described 3rd pre-conditioned and described 4th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described O is less than or equal to described 4th pre-conditioned correspondence is supported; The quantity of the dispensing device that the algorithm that described P is less than or equal to described 5th pre-conditioned correspondence is supported.

The method of 16. acquisition channel-estimation information according to any one of claim 13-15, is characterized in that, the described transmission feature parameter according to described M dispensing device group and described pre-conditioned group, determines described Deplexing method, comprising:

If the transmission feature parameter of the dispensing device comprised in a part of dispensing device group in described M dispensing device group meets the 6th pre-conditioned, the transmission feature parameter of the dispensing device comprised in all the other dispensing device groups meets the 7th pre-conditioned, and transmission feature parameter between described M dispensing device group meets the 8th pre-conditioned, described M is less than or equal to Q, determine that described Deplexing method is the algorithm first adopting described 8th pre-conditioned correspondence, then adopt the algorithm of described 7th pre-conditioned correspondence and the algorithm of the 6th pre-conditioned correspondence respectively;

Wherein, described 6th pre-conditioned be that in described pre-conditioned group, any one is pre-conditioned; Described 7th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned any one in described pre-conditioned group; Described 8th pre-conditioned pre-conditioned for being different from described 6th pre-conditioned and described 7th pre-conditioned any one in described pre-conditioned group; The quantity of the dispensing device that the algorithm that described Q is less than or equal to described 8th pre-conditioned correspondence is supported.

The method of 17. acquisition channel-estimation information according to claim 15, it is characterized in that, described method also comprises:

If described N is greater than described P, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described P to make described N.

The method of 18. acquisition channel-estimation information according to claim 16, it is characterized in that, described method also comprises:

If described M is greater than described Q, again according to the transmission feature parameter of each dispensing device in a described X dispensing device, described pre-conditioned group, the quantity of dispensing device supported of the algorithm of the described pre-conditioned group of pre-conditioned correspondence of each comprising, a described X dispensing device is divided into M dispensing device group, is less than or equal to described Q to make described M.

The method of 19. acquisition channel-estimation information according to any one of claim 11-18, it is characterized in that, described transmission feature parameter also comprises:

Send the coherence bandwidth of the resource shared by signal;

Accordingly, described first predetermined threshold value is for sending the coherence bandwidth of the resource shared by signal.

The method of 20. acquisition channel-estimation information according to any one of claim 11-19, is characterized in that, describedly sends coded system to described X dispensing device, comprising:

According to the coded system of each dispensing device described, obtain respectively and preset in corresponding relation, the mark of the coded system that the coded system of each dispensing device described is corresponding; The mark of the coded system that the coded system of each dispensing device is corresponding described in sending to described X dispensing device; Wherein, described default corresponding relation comprises the mark of at least one coded system and the mark coded system one to one with described coded system;

Or,

The coded system of each dispensing device described is sent to described X dispensing device.

21. 1 kinds of systems obtaining channel-estimation information, is characterized in that, comprising:

X dispensing device;

Receiving system as described in any one of claim 1-10.