CN102307081A

CN102307081A - Method, system and equipment for sending and receiving CSI

Info

Publication number: CN102307081A
Application number: CN201110240532A
Authority: CN
Inventors: 荆梅芳; 苏昕; 张然然; 拉盖施
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT
Priority date: 2011-08-19
Filing date: 2011-08-19
Publication date: 2012-01-04

Abstract

The embodiment of the invention relates to the wireless communication technology field, especially to a method, a system and equipment for sending and receiving channel state information (CSI), wherein the method, the system and the equipment are used for sending and receiving CSI. The method provided in the embodiment of the invention comprises the following steps that: user equipment determines CSI corresponding to bandwidth parts, wherein each bandwidth part is corresponded to a parameter value K and the K indicates the number of available resource clusters contained in the corresponding bandwidth part and the K is an integral number; and the user equipment reports the determined CSIs to a network side. According to the embodiment of the invention, CSI transmission is realized and a system performance is improved.

Description

A kind of method, system and equipment that sends and receive CSI

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method, system and equipment that sends and receive CSI.

Background technology

At LTE (Long Term Evolution; Long Term Evolution) in the system, PDCCH (PhysicalDownlink Control Channel, Physical Downlink Control Channel) sends in each wireless sub-frame; And with downlink data PDSCH (Physical Downlink Shared Channel; Physical down link sharing channel) relation of formation TDM (Time Division Multiple, time division multiplexing) is shown in Figure 1A.PDCCH sends through top n OFDM (Orthogonal Frequency DivisionMultiplexing, the OFDM) symbol of a descending sub frame, and wherein the possible value of N is 1; 2; 3,4, and N=4 only allows to appear in the system that system bandwidth is 1.4MHz.

The control area of transmission PDCCH is to be made up of the CCE (Control ChannelElement, control channel unit) of logical partitioning in the LTE system, and wherein CCE has adopted the mode that interweaves fully to the mapping of RE (Resource Element, Resource Unit).DCI (Downlink Control Information; Downlink Control Information) it is unit that transmission also is based on CCE, can in N continuous CCE, send to the DCI of a UE (subscriber equipment), and the possible value of N is 1 in the LTE system; 2; 4,8, be called CCE polymerization grade (Aggregation Level).UE carries out the PDCCH blind check in the control area; Whether search exists the PDCCH to its transmission; RNTI (the Radio Network Temporary Identifier of this UE is promptly used in blind check; Radio Network Temporary Identifier symbol) to trials of decoding of different DCI forms and CCE polymerization grade, if decoding correctly then receives the DCI to this UE.LTE UE each descending sub frame in non-DRX (Discontinuous Reception, discontinuous reception) state all need carry out blind check to the control area, search PDCCH.

In LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) system,, PDCCH is strengthened in order further to improve demand to the PDCCH channel capacity.For the PDCCH that strengthens, present scheme is to send the PDCCH that strengthens in the PDSCH territory in descending sub frame when keeping original PDCCH territory.Original PDCCH still adopts existing transmission and reception technique in the territory, uses original PDCCH resource, adopts during like transmission to send and divides collection; Adopt the blind check technology DCI to be carried out blind check based on CRS (cell-specificreference signal, cell-level reference signal) during reception, take top n OFDM symbol and send in common search space and the exclusive search volume of subscriber equipment; Wherein the possible value of N is 1; 2,3,4; And N=4 only allows to appear in the system that system bandwidth is 1.4MHz, and this part PDCCH territory is called Legacy PDCCH territory.More advanced transmission and reception technique can be used in the PDCCH territory that strengthens, and use the part resource of original PDSCH, adopt precoding during like transmission; During reception based on user-specific reference signal (UE-Specific Reference Signal; UE-RS), also be that DMRS (Demodulation Reference Symbol, demodulation reference mark) detects; The running time-frequency resource that takies beyond the LegacyPDCCH territory sends; This part PDCCH territory be called Enhanced PDCCH territory (PDCCH that promptly strengthens, E-PDCCH), shown in Figure 1B.

The employed resource location of PDSCH can be indicated through the DCI among the PDCCH, and for the PDCCH that strengthens, a kind of method is can only be through the employed resource location of high-level signaling indication E-PDCCH.Because the mutual cycle of high-level signaling is longer,, then can make E-PDCCH can't fully obtain the frequency selectivity gain if by the definite E-PDCCH resource location of high-level signaling indication.So generally speaking, high-level signaling can distribute one group of available resources for E-PDCCH, and the part resource can be selected for E-PDCCH based on the channel condition information that UE fed back in the base station in the available resources scope of high level configuration in transmission.When UE carries out the reception of E-PDCCH resource, can in the available resources scope of high level configuration, carry out the E-PDCCH blind Detecting.Thereby obtain the compromise of the blind check complexity and the scheduling degree of freedom.

CSI (Channel State Information, channel condition information) is used to make network side can understand the state of respective channels, thereby carries out handled.No matter be PDSCH, E-PDCCH or other channels, corresponding CSI all can be arranged, but also do not have the scheme of a kind of CSI of reporting at present.

In sum, the scheme that does not also have a kind of CSI of transmission at present.

Summary of the invention

A kind of method, system and equipment that sends and receive CSI that the embodiment of the invention provides is in order to transmission CSI.

The method of a kind of transmitting channel state information CSI that the embodiment of the invention provides comprises:

Subscriber equipment is confirmed the CSI that portions of bandwidth is corresponding, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, said K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer;

Said subscriber equipment reports definite CSI to network side.

The method of a kind of CSI of reception that the embodiment of the invention provides comprises:

Network side receives the CSI from user equipment to report;

The portions of bandwidth that the CSI that said network side confirm to receive is corresponding, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, said K represent to comprise in the corresponding portions of bandwidth bunch, K is an integer.

The equipment of a kind of CSI of transmission that the embodiment of the invention provides comprises:

Determination module is used for the CSI that confirms that portions of bandwidth is corresponding, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, said K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer;

Reporting module is used for reporting definite CSI to network side.

The equipment of a kind of CSI of reception that the embodiment of the invention provides comprises:

Receiver module is used to receive the CSI from user equipment to report;

Processing module is used for the corresponding portions of bandwidth of CSI that confirm to receive, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, said K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer.

The system of a kind of CSI of transmission that the embodiment of the invention provides comprises:

Subscriber equipment is used for confirming the CSI of portions of bandwidth correspondence, and reports definite CSI;

Network equipment is used to receive the CSI from user equipment to report, and confirms the corresponding portions of bandwidth of CSI of reception;

Wherein, the quantity of available resources that the corresponding parameter value K of each portions of bandwidth, said K represent to comprise in the corresponding portions of bandwidth bunch, K is an integer.

Embodiment of the invention subscriber equipment reports the corresponding CSI of portions of bandwidth to network side; The quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, said K represent to comprise in the corresponding portions of bandwidth bunch, K is an integer; Thereby realize the CSI transmission, improved systematic function.

Description of drawings

Figure 1A is the multiplexing sketch map that concerns of control area and data area in the descending sub frame in the background technology;

Figure 1B strengthens the PDCCH structural representation in the background technology;

Fig. 2 is the system configuration sketch map of embodiment of the invention transmission CSI;

Fig. 3 sends the user device architecture sketch map of CSI for the embodiment of the invention;

Fig. 4 receives the network equipment structural representation of CSI for the embodiment of the invention;

Fig. 5 sends the method flow sketch map of CSI for embodiment of the invention subscriber equipment;

Fig. 6 receives the method flow sketch map of CSI for embodiment of the invention network side.

Embodiment

Embodiment of the invention subscriber equipment reports the corresponding CSI of portions of bandwidth to network side, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer, thereby realizes the CSI transmission.

Wherein, during feeding back channel state information, when in once feeding back, having no idea to feed back the CSI of all required bandwidth, merotomize the bandwidth of needs feedback, report the wherein CSI of a part of bandwidth at every turn, the part that is divided into just is portions of bandwidth.

In force, the high level of network side can dispose N available resources bunch, and by the frequency domain order to each available resources bunch number (such as according to frequency domain from low to high or ordering from high to low).

Wherein, each available resources is bunch by several continuous on frequency domain PRB (Physical ResourceBlock, Physical Resource Block) or subcarrier, or other frequency domain resource units (like subRB) constitute.

According to top dividing mode, each portions of bandwidth after the division can include only available resources bunch; Also can comprise available resources bunch and PDSCH available resources.

Wherein the available resources in the embodiment of the invention bunch can be E-PDCCH available resources bunch; Can also be the available resources bunch of other channels, such as PDSCH available resources bunch.

If the available resources in the embodiment of the invention bunch are E-PDCCH available resources bunch, realized CSI feedback to E-PDCCH, can better support the E-PDCCH transmission.

Wherein, the portions of bandwidth of the embodiment of the invention is to divide according to the size of system bandwidth, and the number of sub-bands that each portions of bandwidth comprises can be the same or different.Preferably, can divide according to present subband and portions of bandwidth.Such as dividing according to the mode of table 1:

Table 1

According to the system bandwidth 10MHz in the table 1 is example; The size of

subband that it is corresponding is 6RB, needs to divide 3 portions of bandwidth.

Need to prove that except top dividing mode, other modes that can divide system bandwidth all are suitable for the embodiment of the invention.

Below in conjunction with Figure of description the embodiment of the invention is described in further detail.

In the declarative procedure below, the cooperation enforcement from network side and user equipment side earlier describes, and describes from the enforcement of network side and user equipment side respectively at last; But this does not also mean that the two must cooperate enforcement; In fact, separate when implementing, also solved respectively in network side, the existing problem of user equipment side when network side and user equipment side; When just the two is used in combination, can obtain better technique effect.

As shown in Figure 2, the system of embodiment of the invention transmission CSI comprises: subscriber equipment 10 and network equipment 20.

Subscriber equipment 10 is used for the corresponding CSI of definite portions of bandwidth, and reports definite CSI to network side;

Network equipment 20 is used to receive the CSI that reports from subscriber equipment 10, and confirms the corresponding portions of bandwidth of CSI of reception;

Wherein, the quantity of available resources that the corresponding parameter value K of each portions of bandwidth, K represent to comprise in the corresponding portions of bandwidth bunch, K is an integer.

Wherein, a portions of bandwidth is made up of a plurality of subbands; Son has maybe corresponding at least one available resources bunch (that is to say, the subband that has maybe not corresponding available resources bunch); At least one subband of an available resources bunch correspondence.

The subband of available resources bunch correspondence is these available resources bunch system's subbands that take.Bunch take (or being positioned at) system's subband, then subband of these available resources bunch correspondence such as available resources; Available resources bunch take (or being positioned at) 3 system's subbands, then 3 subbands of these available resources bunch correspondence.

Preferably, subscriber equipment 10 can repeatedly report (such as periodic report), reports the corresponding CSI of a portions of bandwidth at every turn.

Wherein, the corresponding K value of each portions of bandwidth can be all identical, and is also can part identical, can also be inequality entirely.

The corresponding K value of each portions of bandwidth can be confirmed according to the configuration of network side.Preferably, subscriber equipment 10 is confirmed the K value that portions of bandwidth is corresponding according to following manner:

Subscriber equipment 10 is confirmed the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth; According to the resource allocation information of the available resources bunch position of network side configuration, confirm the quantity (this quantity is exactly the corresponding K of this portions of bandwidth) of available resources on the position of each portions of bandwidth bunch.

Concrete, at first subscriber equipment 10 is confirmed the position of each portions of bandwidth, just knows according to resource allocation information which (or which) portions of bandwidth is each available resources bunch all belonged to then.

Accordingly, network equipment 20 is confirmed the K value that portions of bandwidth is corresponding according to following manner:

Network equipment 20 is confirmed the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth; According to the resource allocation information of available resources bunch position, confirm the quantity of available resources on the position of each portions of bandwidth bunch.

No matter which kind of mode of employing need guarantee network side and use identical corresponding relation with user equipment side.

If available resources bunch take two portions of bandwidth, then these available resources bunch respectively corresponding these two portions of bandwidth respectively.Based on this, in some cases, the total quantity of available resources that portions of bandwidth comprises bunch can be greater than the total quantity of available resources bunch.

In force, if available resources bunch sum equals the quantity of portions of bandwidth in the whole bandwidth, K equals 1.That is to say that each portions of bandwidth all comprises available resources bunch, promptly the available resources that comprise of each portions of bandwidth are bunch identical.

If the corresponding K value of the portions of bandwidth that has is 0; Explain that this portions of bandwidth does not comprise available resources bunch; Subscriber equipment 10 can not send CSI information when needs report the CSI of this portions of bandwidth, promptly vacate to carry the resource that corresponding K equals the CSI of 0 portions of bandwidth; Accordingly, network equipment 20 does not receive the CSI that corresponding K equals 0 portions of bandwidth.This mode is not sent information on the resource of correspondence.Improve resource utilization in order to save resource; Preferably; Subscriber equipment 10 can be skipped the CSI feedback of this portions of bandwidth when needs report the CSI of this portions of bandwidth; The direct corresponding CSI of portions of bandwidth of feedback next K ≠ 0 promptly sends the CSI that next corresponding K is not equal to 0 portions of bandwidth carrying resource that corresponding K equals the CSI of 0 portions of bandwidth; Accordingly, network equipment 20 receives the CSI that next corresponding K is not equal to 0 portions of bandwidth receiving on the resource of CSI that corresponding K equals 0 portions of bandwidth.

If the corresponding K of portions of bandwidth is a positive integer, explain that this portions of bandwidth comprises at least one available resources bunch, the corresponding CSI of this portions of bandwidth that subscriber equipment 10 is confirmed include but not limited to it is among the following CSI:

1, the CSI of all subbands of the available resources bunch correspondence that comprises of portions of bandwidth;

2, M in all subbands of the available resources bunch correspondence that comprises of portions of bandwidth ₁The CSI of individual subband, wherein M ₁It is positive integer;

3, K in the available resources that comprise of portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence, wherein K ₁It is integer;

4, K in the available resources that comprise of portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband, wherein K ₂Be positive integer, M ₂It is integer.

Preferably, if the corresponding CSI of this portions of bandwidth that subscriber equipment 10 is confirmed are above-mentioned 2 or 4, promptly corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁K in the available resources that the CSI of individual subband or this portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The positional information of the subband that the CSI that the CSI of individual subband, subscriber equipment can also confirm to report is corresponding, and report definite positional information to network side.Preferably, subscriber equipment 10 reports the positional information of subband with corresponding CSI together; Accordingly, network equipment 20 receptions are from the positional information of the corresponding subband of the CSI of subscriber equipment 10

Preferably, if M ₁=1, and the number of sub-bands of all available resources bunch correspondence of comprising of portions of bandwidth is 1, then subscriber equipment 10 can omit the positional information of respective sub-bands;

If M ₂=1, and the K that portions of bandwidth comprises ₂The number of sub-bands of individual available resources bunch correspondence is 1, and then subscriber equipment 10 can omit the positional information of respective sub-bands.

Preferably, if K in the available resources that the corresponding CSI of portions of bandwidth is a portions of bandwidth to be comprised bunch ₁The CSI of all subbands of individual available resources bunch correspondence; Subscriber equipment 10 is according to the mode of setting of choosing definite K from K available resources bunch ₁Individual available resources bunch; Accordingly, network equipment 20 is confirmed the K in K the corresponding available resources of CSI bunch according to the mode of setting of choosing ₁Individual available resources bunch.

Wherein, K ₁The mode of choosing include but not limited to a kind of in the following manner:

According to numbering choose, polling mode chooses.

Such as, to choose according to numbering, portions of bandwidth comprises 5 available resources bunch, promptly available resource bunches 1,2,3,4 and 5, K ₁Be 2, then to this portions of bandwidth, each numbering 1 and 2 of only selecting.

Such as, polling mode is chosen, and portions of bandwidth comprises 5 available resources bunch, promptly available resource bunches 1,2,3,4 and 5, K ₁Be 2, then to this portions of bandwidth, when needing first time to send the CSI of this portions of bandwidth correspondence, poll available resources bunches 1 and 2; In the time of need sending the corresponding CSI of this portions of bandwidth next time, poll available resources bunches 3 and 4; In the time of need sending the corresponding CSI of this portions of bandwidth again, the poll available resources bunch are with 5 and 1 next time; And the like.

Preferably, if K in the available resources that the corresponding CSI of portions of bandwidth is a portions of bandwidth to be comprised bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Subscriber equipment 10 is according to the mode of setting of choosing definite K from K available resources bunch ₂Individual available resources bunch; Accordingly, network equipment 20 is confirmed the K in K the corresponding available resources of CSI bunch according to the mode of setting of choosing ₂Individual available resources bunch.

Wherein, K ₂The mode of choosing and K ₁To choose mode similar, repeat no more at this.

Preferably, if M in all subbands of the available resources bunch correspondence that the corresponding CSI of portions of bandwidth is this portions of bandwidth to be comprised ₁The CSI of individual subband; Subscriber equipment 10 is confirmed M according to the mode of setting of choosing from all subbands ₁The position of individual subband; Accordingly, network equipment 20 is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₁The position of individual subband.

Wherein, M ₁The mode of choosing and K ₁To choose mode similar, repeat no more at this.

Preferably, if K in the available resources that the corresponding CSI of portions of bandwidth is this portions of bandwidth to be comprised bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Subscriber equipment 10 is according to the mode of setting of choosing, from K ₂Confirm M in all subbands of individual available resources bunch correspondence ₂The position of individual subband; Accordingly, network equipment 20 is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₂The position of individual subband.

Wherein, M ₂The mode of choosing and K ₁To choose mode similar, repeat no more at this.

In force, K ₁And/or K ₂Confirm or be fixed as certain value by network side notice or according to system bandwidth.M ₁And/or M ₂Value is confirmed or is fixed as certain value by network side notice or according to system bandwidth.

Concrete, K ₁Value, K ₂Value, M ₁Value and M ₂Value can be the network side configuration; Also can be the default value of setting in advance, such as in agreement, stipulating K ₁=1, K ₂=1, M ₁=1, M ₂=1.

Wherein, the network equipment of the embodiment of the invention can be base station (such as macro base station, a Home eNodeB etc.), also can be RN (relaying) equipment, can also be other network equipment.

Based on same inventive concept; The method of the subscriber equipment of a kind of CSI of transmission, the network equipment that receives CSI, the method for sending CSI and reception CSI also is provided in the embodiment of the invention; Because principle that these equipment and method are dealt with problems and the system similarity that transmits CSI; Therefore the enforcement of these equipment and method can repeat part and repeat no more referring to the enforcement of method.

As shown in Figure 3, the subscriber equipment that the embodiment of the invention is sent CSI comprises: determination module 300 and reporting module 310.

Determination module 300 is used for the CSI that confirms that portions of bandwidth is corresponding, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer;

Reporting module 310 is used for reporting definite CSI to network side.

Preferably, K is a positive integer; The corresponding CSI of portions of bandwidth is among the following CSI:

The CSI of all subbands of the available resources bunch correspondence that portions of bandwidth comprises;

M in all subbands of the available resources bunch correspondence that portions of bandwidth comprises ₁The CSI of individual subband, wherein M ₁It is positive integer;

K in the available resources that portions of bandwidth comprises bunch ₁The CSI of all subbands of individual available resources bunch correspondence, wherein K ₁It is integer;

K in the available resources that portions of bandwidth comprises bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband, wherein K ₂It is positive integer.

Preferably, the corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁K in the available resources that the CSI of individual subband or this portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; The positional information of the subband that determination module 300 definite CSI that need report are corresponding; Reporting module 310 reports definite positional information to network side.

Preferably, the corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁The CSI of individual subband; Determination module 300 is confirmed M according to the mode of setting of choosing from all subbands ₁The position of individual subband.

Preferably, the corresponding CSI of portions of bandwidth is K in the available resources that comprise of a portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence; Determination module 300 is according to the mode of setting of choosing, definite K from K available resources bunch ₁Individual available resources bunch.

Preferably, the corresponding CSI of portions of bandwidth is K in the available resources that comprise of a portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Determination module 300 is according to the mode of setting of choosing, definite K from K available resources bunch ₂Individual available resources bunch.

Preferably, determination module 300 is confirmed K according to the configuration of network side or being provided with in advance ₁Value, K ₂Value, M ₁Value and M ₂Value.

Preferably, determination module 300 is confirmed the K value that portions of bandwidth is corresponding according to following manner:

Confirm the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth; According to the resource allocation information of the available resources bunch position of network side configuration, confirm the quantity of available resources on the position of each portions of bandwidth bunch.

Preferably, reporting module 310 is vacated and is carried the resource that corresponding K equals the CSI of 0 portions of bandwidth; Or send the CSI that next corresponding K is not equal to 0 portions of bandwidth carrying resource that corresponding K equals the CSI of 0 portions of bandwidth.

As shown in Figure 4, the network equipment that the embodiment of the invention receives CSI comprises: receiver module 400 and processing module 410.

Receiver module 400 is used to receive the CSI from user equipment to report;

Processing module 410 is used for the corresponding portions of bandwidth of CSI that confirm to receive, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer.

Preferably, K is a positive integer; The CSI that receiver module 400 receives is among the following CSI:

K in the available resources that portions of bandwidth comprises bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband, wherein K ₂Be positive integer, M ₂It is integer.

Preferably, the CSI that receives of receiver module 400 is M in all subbands of the available resources bunch correspondence that comprises of a portions of bandwidth ₁K in the available resources that the CSI of individual subband or portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Then receiver module 400 also receives the positional information from the corresponding subband of the CSI of subscriber equipment.

Preferably, the CSI that receives of receiver module 400 is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁The CSI of individual subband; Then processing module 410 is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₁The position of individual subband.

Preferably, the CSI that receives of receiver module 400 is K in the available resources that comprise of this portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Then processing module 410 is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₂The position of individual subband.

Preferably, the CSI that receives of receiver module 400 is K in the available resources that comprise of a portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence; Then processing module 410 is according to the mode of setting of choosing, and confirms K in K the corresponding available resources of CSI bunch ₁Individual available resources bunch.

Preferably, the CSI that receives of receiver module 400 is K in the available resources that comprise of a portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Then processing module 410 is according to the mode of setting of choosing, and confirms K in K the corresponding available resources of CSI bunch ₂Individual available resources bunch.

Preferably, processing module 410 is confirmed the K value of portions of bandwidth according to following manner:

Confirm the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth; According to the resource allocation information of available resources bunch position, confirm the quantity of available resources on the position of each portions of bandwidth bunch.

Preferably, receiver module 400 does not receive the CSI that corresponding K equals 0 portions of bandwidth; Or receive the CSI that next corresponding K is not equal to 0 portions of bandwidth receiving resource that corresponding K equals the CSI of 0 portions of bandwidth.

As shown in Figure 5, the method that embodiment of the invention subscriber equipment sends CSI comprises the following steps:

Step 501, subscriber equipment are confirmed the CSI that portions of bandwidth is corresponding, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer;

Step 502, subscriber equipment report definite CSI to network side.

Preferably, subscriber equipment can repeatedly report (such as periodic report), reports the corresponding CSI of a portions of bandwidth at every turn.

The corresponding K value of each portions of bandwidth can be confirmed according to the configuration of network side.Preferably, subscriber equipment is confirmed the K value that portions of bandwidth is corresponding according to the following step:

Subscriber equipment is confirmed the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth; According to the resource allocation information of the available resources bunch position of network side configuration, confirm the quantity (this quantity is exactly the corresponding K of this portions of bandwidth) of available resources on the position of each portions of bandwidth bunch.

Concrete, at first subscriber equipment is confirmed the position of each portions of bandwidth, just knows according to resource allocation information which (or which) portions of bandwidth is each available resources bunch all belonged to then.

If the corresponding K value of the portions of bandwidth that has is 0; Explain that this portions of bandwidth does not comprise available resources bunch; In the step 502, when needs report the CSI of this portions of bandwidth, can not send CSI information, promptly vacate and carry the resource that corresponding K equals the CSI of 0 portions of bandwidth.This mode is not sent information on the resource of correspondence.Improve resource utilization in order to save resource; Preferably; In the step 502; When needs report the CSI of this portions of bandwidth, can skip the CSI feedback of this portions of bandwidth, directly feed back the corresponding CSI of portions of bandwidth of next K ≠ 0, promptly send the CSI that next corresponding K is not equal to 0 portions of bandwidth carrying resource that corresponding K equals the CSI of 0 portions of bandwidth.

If the corresponding K of portions of bandwidth is a positive integer, explain that this portions of bandwidth comprises at least one available resources bunch, in the step 501, the corresponding CSI of this portions of bandwidth that subscriber equipment is confirmed includes but not limited to it is among the following CSI:

Preferably, if the corresponding CSI of this portions of bandwidth that subscriber equipment is confirmed is above-mentioned 2 or 4, promptly corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁K in the available resources that the CSI of individual subband or this portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The positional information of the subband that the CSI that the CSI of individual subband, subscriber equipment can also confirm to report is corresponding, and report definite positional information to network side.Preferably, subscriber equipment reports the positional information of subband with corresponding CSI together.

Preferably, if M ₁=1, and the number of sub-bands of all available resources bunch correspondence of comprising of portions of bandwidth is 1, then can omit the positional information of respective sub-bands;

If M ₂=1, and the K that portions of bandwidth comprises ₂The number of sub-bands of individual available resources bunch correspondence is 1, then can omit the positional information of respective sub-bands.

Preferably, if K in the available resources that the corresponding CSI of portions of bandwidth is a portions of bandwidth to be comprised bunch ₁The CSI of all subbands of individual available resources bunch correspondence; In the step 501, subscriber equipment is according to the mode of setting of choosing definite K from K available resources bunch ₁Individual available resources bunch.

According to numbering choose, polling mode chooses.

Such as, choose according to numbering, 5 subbands of K available resources bunch correspondence that portions of bandwidth comprises, promptly subband 1,2,3,4 and 5, M ₁Be 2, then to this portions of bandwidth, each numbering 1 and 2 of only selecting.

Such as, polling mode is chosen, 5 subbands of K available resources bunch correspondence that portions of bandwidth comprises, and promptly subband 1,2,3,4 and 5, M ₁Be 2, then to this portions of bandwidth, when needing the first time to send the CSI of this portions of bandwidth correspondence, poll subband 1 and 2; In the time of need sending the CSI of this portions of bandwidth correspondence next time, poll subband 3 and 4; In the time of need sending the CSI of this portions of bandwidth correspondence more next time, poll subband 5 and 1; And the like.

Preferably, if M in all subbands of the available resources bunch correspondence that the corresponding CSI of portions of bandwidth is this portions of bandwidth to be comprised ₁The CSI of individual subband; In the step 501, subscriber equipment is according to the mode of setting of choosing definite K from K available resources bunch ₂Individual available resources bunch.

Preferably, if M in all subbands of the available resources bunch correspondence that the corresponding CSI of portions of bandwidth is this portions of bandwidth to be comprised ₁The CSI of individual subband; Subscriber equipment 10 is confirmed M according to the mode of setting of choosing from all subbands ₁The position of individual subband.

Preferably, if K in the available resources that the corresponding CSI of portions of bandwidth is this portions of bandwidth to be comprised bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Subscriber equipment 10 is according to the mode of setting of choosing, from K ₂Confirm M in all subbands of individual available resources bunch correspondence ₂The position of individual subband;

As shown in Figure 6, the method that embodiment of the invention network side receives CSI comprises the following steps:

Step 601, network side receive the CSI from user equipment to report;

Step 602, network side are confirmed the corresponding portions of bandwidth of CSI that receives, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer.

The corresponding K value of each portions of bandwidth can be disposed by high level.Preferably, network side is confirmed the K value that portions of bandwidth is corresponding according to the following step:

Network side is confirmed the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth; According to the resource allocation information of available resources bunch position, confirm the quantity of available resources on the position of each portions of bandwidth bunch.

If the corresponding K of portions of bandwidth is a positive integer, explain that this portions of bandwidth comprises at least one available resources bunch, the CSI that network side receives includes but not limited to it is among the following CSI:

Preferably, if the CSI that network side receives is above-mentioned 2 or 4, promptly the CSI that receives of network side is M in all subbands of the available resources bunch correspondence that comprises of a portions of bandwidth ₁K in the available resources that the CSI of individual subband or portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband, then network side receives the positional information from the corresponding subband of the CSI of subscriber equipment.

Preferably, network side does not receive the CSI that corresponding K equals 0 portions of bandwidth; Or receive the CSI that next corresponding K is not equal to 0 portions of bandwidth on the resource of CSI that corresponding K equals 0 portions of bandwidth receiving.

Preferably, if K in the available resources that the CSI that network side receives is a portions of bandwidth to be comprised bunch ₁The CSI of all subbands of individual available resources bunch correspondence; In the step 602, network side is confirmed the K in K the corresponding available resources of CSI bunch according to the mode of setting of choosing ₁Individual available resources bunch.

According to numbering choose, polling mode chooses.

Preferably, if K in the available resources that the CSI that network side receives is a portions of bandwidth to be comprised bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; In the step 602, network side is according to the mode of setting of choosing definite K from K available resources bunch ₂Individual available resources bunch.

Preferably, if M in all subbands of the available resources bunch correspondence that the CSI that network side receives is a portions of bandwidth to be comprised ₁The CSI of individual subband; Network side is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₁The position of individual subband.

Preferably, if K in the available resources that the CSI that network side receives is a portions of bandwidth to be comprised bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Network side is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₂The position of individual subband.

No matter which kind of adopts choose mode, need to guarantee that network side adopts the identical mode of choosing with subscriber equipment.

Concrete, K ₁Value, K ₂Value, M ₁Value and M ₂Value can be high-rise configuration; Also can be pre-configured default value, such as in agreement, stipulating K ₁=1, K ₂=1, M ₁=1, M ₂=1.

Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the method for a transmission CSI, promptly first execution in step 501 and step 502, execution in step 601 and step 602 again.

Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.

The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.

These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.

Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.

Embodiment of the invention subscriber equipment reports the corresponding CSI of portions of bandwidth to network side, the quantity of available resources that corresponding parameter value K of each portions of bandwidth wherein, K represent to comprise in the corresponding portions of bandwidth bunch, and K is an integer, thereby realizes the CSI transmission

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. the method for a transmitting channel state information CSI is characterized in that, this method comprises:

Said subscriber equipment reports definite CSI to network side.

2. the method for claim 1 is characterized in that, said available resources bunch are made up of a plurality of PRB continuous on the frequency domain or a plurality of subcarrier.

3. the method for claim 1 is characterized in that, the corresponding CSI of portions of bandwidth is among the following CSI:

K in the available resources that portions of bandwidth comprises bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband, wherein K ₂Be positive integer, M ₂It is integer;

4. method as claimed in claim 3 is characterized in that, the corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁K in the available resources that the CSI of individual subband or this portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

This method also comprises:

The positional information of the subband that the CSI that said subscriber equipment is confirmed to report is corresponding, and report definite positional information to network side.

5. method as claimed in claim 3 is characterized in that, the corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁The CSI of individual subband;

Said subscriber equipment confirms that the corresponding CSI of portions of bandwidth also comprises:

Said subscriber equipment is confirmed M according to the mode of setting of choosing from all subbands ₁The position of individual subband;

The corresponding CSI of portions of bandwidth is K in the available resources that comprise of this portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

Said subscriber equipment is according to the mode of setting of choosing, from K ₂Confirm M in all subbands of individual available resources bunch correspondence ₂The position of individual subband.

6. method as claimed in claim 3 is characterized in that, the corresponding CSI of portions of bandwidth is K in the available resources that comprise of a portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence;

Said subscriber equipment is according to the mode of setting of choosing, definite K from K available resources bunch ₁Individual available resources bunch;

The corresponding CSI of portions of bandwidth is K in the available resources that comprise of a portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

Said subscriber equipment is according to the mode of setting of choosing, definite K from K available resources bunch ₂Individual available resources bunch.

7. method as claimed in claim 3 is characterized in that, said K ₁And/or K ₂Confirm or be fixed as certain value by network side notice or according to system bandwidth.

Said M ₁And/or M ₂Value is confirmed or is fixed as certain value by network side notice or according to system bandwidth.

8. like claim 2 or 3 described methods, it is characterized in that at least one subband of an available resources bunch correspondence.

9. method as claimed in claim 8 is characterized in that, the subband of said available resources bunch correspondence is these available resources bunch system's subbands that take.

10. the method for claim 1 is characterized in that, the corresponding K of each portions of bandwidth is all identical or part is identical or inequality entirely.

11., it is characterized in that said subscriber equipment is confirmed the K value that portions of bandwidth is corresponding according to the following step like claim 1～7,10 arbitrary described methods:

Said subscriber equipment is confirmed the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth;

Said subscriber equipment is according to the resource allocation information of the available resources bunch position of network side configuration, confirms the quantity of available resources on the position of each portions of bandwidth bunch.

12., it is characterized in that if K=1, the available resources that each portions of bandwidth comprises are bunch identical like claim 1～7,10 arbitrary described methods, said available resources bunch sum equals the quantity of portions of bandwidth in the whole bandwidth.

13., it is characterized in that this method also comprises like claim 1～7,10 arbitrary described methods:

Said subscriber equipment is vacated and is carried the resource that corresponding K equals the CSI of 0 portions of bandwidth; Or

Said subscriber equipment equals to send on the resource of CSI of 0 portions of bandwidth the CSI that next corresponding K is not equal to 0 portions of bandwidth carrying corresponding K.

14. a method that receives CSI is characterized in that, this method comprises:

Network side receives the CSI from user equipment to report;

15. method as claimed in claim 14 is characterized in that, said available resources bunch are made up of a plurality of PRB continuous on the frequency domain or a plurality of subcarrier.

16. method as claimed in claim 14 is characterized in that, the CSI that said network side receives is among the following CSI:

17. method as claimed in claim 16 is characterized in that, the CSI that network side receives is M in all subbands of the available resources bunch correspondence that comprises of a portions of bandwidth ₁K in the available resources that the CSI of individual subband or portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

This method also comprises:

Said network side receives the positional information from the corresponding subband of the CSI of subscriber equipment.

18. method as claimed in claim 16 is characterized in that, the CSI that network side receives is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁The CSI of individual subband;

Said network side confirms that the corresponding portions of bandwidth of CSI also comprises:

Said network side is confirmed M in all corresponding subbands of CSI according to the mode of setting of choosing ₁The position of individual subband;

The CSI that network side receives is K in the available resources that comprise of this portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

Said network side is confirmed the K that CSI is corresponding according to the mode of setting of choosing ₂M in all subbands of individual available resources bunch correspondence ₂The position of individual subband.

19. method as claimed in claim 16 is characterized in that, the CSI that network side receives is K in the available resources that comprise of a portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence;

Said network side is according to the mode of setting of choosing, and confirms K in K the corresponding available resources of CSI bunch ₁Individual available resources bunch;

The CSI that network side receives is K in the available resources that comprise of a portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

Said network side is according to the mode of setting of choosing, and confirms K in K the corresponding available resources of CSI bunch ₂Individual available resources bunch.

20. method as claimed in claim 16 is characterized in that, said K ₁And/or K ₂Confirm or be fixed as certain value by network side notice or according to system bandwidth.

21., it is characterized in that at least one subband of an available resources bunch correspondence like claim 15 or 16 described methods.

22. method as claimed in claim 21 is characterized in that, the subband of said available resources bunch correspondence is these available resources bunch system's subbands that take.

23. method as claimed in claim 16 is characterized in that, the corresponding K of each portions of bandwidth is all identical or part is identical or inequality entirely.

24., it is characterized in that said network side is confirmed the K value of portions of bandwidth according to the following step like claim 16～20,23 arbitrary described methods:

Said network side is confirmed the position of number and each portions of bandwidth of portions of bandwidth according to system bandwidth;

Said network side is according to the resource allocation information of available resources bunch position, confirms the quantity of available resources on the position of each portions of bandwidth bunch.

25., it is characterized in that if K=1, the available resources that each portions of bandwidth comprises are bunch identical like claim 16～20,23 arbitrary described methods, said available resources bunch sum equals the quantity of portions of bandwidth in the whole bandwidth.

26., it is characterized in that this method also comprises like claim 16～20,23 arbitrary described methods:

Said network side does not receive the CSI that corresponding K equals 0 portions of bandwidth; Or

Said network side receives the CSI that next corresponding K is not equal to 0 portions of bandwidth receiving on the resource of CSI that corresponding K equals 0 portions of bandwidth.

27. an equipment that sends CSI is characterized in that, this equipment comprises:

Reporting module is used for reporting definite CSI to network side.

28. equipment as claimed in claim 27 is characterized in that, the corresponding CSI of portions of bandwidth is among the following CSI:

29. equipment as claimed in claim 28 is characterized in that, the corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁K in the available resources that the CSI of individual subband or this portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

Said determination module also is used for:

The positional information of the subband that the CSI that definite needs report is corresponding,

Said reporting module also is used for:

Report definite positional information to network side.

30. equipment as claimed in claim 28 is characterized in that, the corresponding CSI of portions of bandwidth is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁The CSI of individual subband;

Said determination module also is used for:

According to the mode of setting of choosing, from all subbands, confirm M ₁The position of individual subband;

Said determination module also is used for:

According to the mode of setting of choosing, from K ₂Confirm M in all subbands of individual available resources bunch correspondence ₂The position of individual subband.

31. equipment as claimed in claim 28 is characterized in that, the corresponding CSI of portions of bandwidth is K in the available resources that comprise of a portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence; Said determination module also is used for:

According to the mode of setting of choosing, definite K from K available resources bunch ₁Individual available resources bunch;

The corresponding CSI of portions of bandwidth is K in the available resources that comprise of a portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Said determination module also is used for:

According to the mode of setting of choosing, definite K from K available resources bunch ₂Individual available resources bunch.

32., it is characterized in that said determination module is confirmed the K value that portions of bandwidth is corresponding according to the following step like the arbitrary described equipment of claim 27～31:

33., it is characterized in that said reporting module also is used for like the arbitrary described equipment of claim 27～31:

Vacate and carry the resource that corresponding K equals the CSI of 0 portions of bandwidth; Or

Send the CSI that next corresponding K is not equal to 0 portions of bandwidth carrying resource that corresponding K equals the CSI of 0 portions of bandwidth.

34. an equipment that receives CSI is characterized in that, this equipment comprises:

Receiver module is used to receive the CSI from user equipment to report;

35. equipment as claimed in claim 34 is characterized in that, K is a positive integer;

The CSI that said receiver module receives is among the following CSI:

36. equipment as claimed in claim 35 is characterized in that, the CSI that said receiver module receives is M in all subbands of the available resources bunch correspondence that comprises of a portions of bandwidth ₁K in the available resources that the CSI of individual subband or portions of bandwidth comprise bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband;

Said receiver module also is used for: receive the positional information from the corresponding subband of the CSI of subscriber equipment.

37. equipment as claimed in claim 35 is characterized in that, the CSI that said receiver module receives is M in all subbands of the available resources bunch correspondence that comprises of this portions of bandwidth ₁The CSI of individual subband; Said processing module also is used for:

According to the mode of setting of choosing, confirm M in all corresponding subbands of CSI ₁The position of individual subband;

The CSI that said receiver module receives is K in the available resources that comprise of this portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Said processing module also is used for:

According to the mode of setting of choosing, confirm M in all corresponding subbands of CSI ₂The position of individual subband.

38. equipment as claimed in claim 35 is characterized in that, the CSI that said receiver module receives is K in the available resources that comprise of a portions of bandwidth bunch ₁The CSI of all subbands of individual available resources bunch correspondence; Said processing module also is used for:

According to the mode of setting of choosing, confirm K in K the corresponding available resources of CSI bunch ₁Individual available resources bunch;

The CSI that said receiver module receives is K in the available resources that comprise of a portions of bandwidth bunch ₂M in all subbands of individual available resources bunch correspondence ₂The CSI of individual subband; Said processing module also is used for:

According to the mode of setting of choosing, confirm K in K the corresponding available resources of CSI bunch ₂Individual available resources bunch.

39., it is characterized in that said processing module is confirmed the K value of portions of bandwidth according to the following step like the arbitrary described equipment of claim 34～38:

40., it is characterized in that said receiver module also is used for like the arbitrary described equipment of claim 34～38:

Do not receive the CSI that corresponding K equals 0 portions of bandwidth; Or

Receive the CSI that next corresponding K is not equal to 0 portions of bandwidth on the resource of CSI that corresponding K equals 0 portions of bandwidth receiving.

41. a system of transmitting CSI is characterized in that, this system comprises: