Background technology
(1) PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) format (form) 1b with channel selection (the PUCCH format1b selecting with channel) scheme.
At LTE-A (Long Term Evolution-Advanced, senior Long Term Evolution) (Release 10 for Rel-10, version 10) in, PUCCH format 1b with channel selection can be used for the ACK (Acknowledgment that transmission is no more than 4 bits, positive acknowledgement)/NACK (Non-Acknowledgment, Negative Acknowledgement) feedback information, and transmission M bit feedback informational needs is used M PUCCH format 1b resource; M=2,3,4 wherein.
Terminal is according to ACK/NACK state to be feedback, inquire about corresponding ACK/NACK mapping form, from M candidate's PUCCH format 1b resource, select one, and at QPSK (Quadrature Phase-Shift Keying, Quadrature Phase Shift Keying) in 4 constellation point, select a constellation point (i.e. a QPSK modulation symbol), the constellation point of selecting in the PUCCH format 1b transmitted over resources of selecting, concrete transmission structure is with PUCCH format 1b, as depicted in figs. 1 and 2.Figure 1 shows that the PUCCH format 1b transmission structure under conventional CP (Cyclic Prefix, Cyclic Prefix), Figure 2 shows that the PUCCH format 1b transmission structure under expansion CP.
In Fig. 1 and Fig. 2, D1 is the QPSK constellation point (i.e. a QPSK modulation symbol) of tabling look-up definite, and RS (Reference Signal, reference signal) is that concrete RS sequence is defined by 3GPP TS36.211 for transmitting the symbol of pilot tone; [w0, w1 ..., w3] be time domain orthogonal sequence, by 3GPP TS36.211, defined.Especially, when SRS (Sounding Reference Symbol is supported in high-level signaling configuration, while sounding reference symbol) transmitting with ACK/NACK simultaneously, can adopt shortened PUCCH format 1b transmission structure, be last symbol transferring ACK/NACK not in Fig. 1 and Fig. 2, the reserved transmitting SRS that is used for.
It should be noted that, in Rel-10, PUCCH format 1b with channel selection does not support many antenna ports transmission mode, its reason is to consider to adopt SORTD (Spatial Orthogonal Resource Transmit Diversity, spatial domain orthogonal resource transmit diversity) time, terminal is determined the resource sequence number of M PUCCH format 1b for each antenna port, the PUCCH format 1b of each antenna port at frequency domain or/and quadrature in time domain; Corresponding time domain orthogonal sequence difference and/or the frequency domain cyclic shift value difference of PUCCH format 1b resource that for example different antennae port is corresponding; In addition, during 2 antenna port transmission, need to take altogether 2M PUCCH resource, for 4 bit ACK/NACK transmission, need to take 8 PUCCH resources, resource overhead is excessive; Antenna port refers to the antenna port of PUCCH herein.
Because the time domain orthogonal sequence length of Data support in PUCCH format 1b is 4, the time domain orthogonal sequence length of pilot tone support is 3 (conventional CP) or 2 (expansion CP), consider that the differentiable terminal of pilot tone is less than data, therefore the number of terminals that the different orthogonal sequence of time domain can be distinguished depends on pilot tone, under conventional CP, mostly be 3 most, under expansion CP, mostly be 2 most; Frequency domain cyclic shift value is at most 12 for data and pilot tone and (depends on the setting of cyclic shift interval, cyclic shift interval is 1 o'clock, available cycles shift value is 12), different cyclic shift value can be distinguished maximum 12 terminals, therefore PUCCH format 1b is when single antenna port transmission, under conventional CP, 1 PRB (Physical Resource Block, Physical Resource Block) maximum 36 terminals of multiplexing transmission in, under expansion CP, maximum 24 terminals of multiplexing transmission in 1 PRB.
When PUCCH format 1b with channel selection adopts SORTD transmission, PUCCH format 3 resources of need using are single antenna port transmission 2 times, now in a PRB, only can multiplexing transmission number of terminals decline one times, greatly increased overhead.From system, cover and the consideration of through-put power angle, in Rel-11, also need many antenna ports transmission plan of the PUCCH format 1b with channel selection that further resources for research expense is less, to promote transmission performance, expansion system covers.
(2) E-SORTD (Enhanced SORTD) scheme.
When E-SORTD scheme is transmitted 2 antenna ports, the thought of ACK/NACK mapping form design is: for M=2,3,4 bit ACK/NACK, need to take 4 PUCCH format 1b resources; For M bit ACK/NACK assembled state, as shown in Table 1 and Table 2, at first antenna port and second antenna port, transmit identical modulation symbol (being the QPSK modulation symbol that ACK/NACK is corresponding); Pilot tone on first antenna port and the data same PUCCH format 1b transmitted over resources in 4 candidate channel resources; Pilot tone on second antenna port and data are used 2 the different PUCCH format 1b transmitted over resources the resource of using except first antenna port in 4 candidate channel resources, and adjacent PUCCH format 1b resource in pilot tone and data use mapping form.
E-SORTD need take 4 PUCCH format 1b resources, with respect to SORTD scheme, transmit 3 bit ACK/NACK and need to take 6 PUCCH format 1b resources, the ACK/NACK that transmits 4 bits need to take 8 PUCCH format 1b resources, and PUCCH resource overhead greatly reduces.But, in E-SORTD scheme, data on second antenna port and pilot tone are respectively in different PUCCHformat 1b transmitted over resources, different PUCCH format1b resources may be mapped in different PRB, therefore may exist the frequency domain position of data and pilot tone respectively in different PRB, the channel of different PRB experience is different, cannot use pilot data to carry out correct channel estimating to data, and then reduces demodulation performance.
For example, for FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system, the ACK/NACK mapping form of 4 bits is applied in the scene of 2 carrier aggregation with many codeword transmission pattern; Wherein, the 1st PUCCH format 1b resource (i.e.
Ch#0 in table) is according to PCC (Primary Component Carrier, main member carrier) PDCCH (the Physical Downlink Control Channel of the corresponding PCC of upper transmission, Physical Downlink Control Channel) minimum CCE (Control Channel Element, control channel unit) numbers n
cCE, idetermine, that is,
the 2nd PUCCH format1b resource (i.e.
Ch#1 in table) is to determine according to the minimum CCE numbering+1 of this PDCCH, that is,
for the pre-configured parameter of high-level signaling; When supporting across carrier dispatching, the the 3rd and the 4th PUCCH format 1b resource (i.e.
Ch#2 and Ch#3 in table) determined respectively according to the minimum CCE numbering of the PDCCH of the upper transmitting and scheduling SCC (Secondary Component Carrier, auxiliary member carrier) of PCC and minimum CCE numbering+1; When not supporting across carrier dispatching, the the 3rd and the 4th PUCCH format 1b resource (i.e.
Ch#2 and Ch#3 in table) be according to the one group of resource (every group comprises 2 PUCCH format 1b resources) in the pre-configured PUCCH format 1b resource collection of the definite high-level signaling in the ARI in the PDCCH of scheduling SCC (ACK/NACK Resource Indicator, ACK/NACK resource is indicated) territory.
Again for example, for TDD (Time Division Duplex, time division duplex) system, PUCCH format1b resource is different according to its obtain manner of different number of bits of feedback, refers to 3GPP TS 36.213.For the PDCCH transmitting on PCC, can be according to the minimum CCE numbering n of this PDCCH
cCE, mdetermine resource, that is,
And determine resource according to the minimum CCE numbering+1 of this PDCCH,
for the pre-configured parameter of high-level signaling, c be from 0,1,2,3} select meet N
c≤ n
cCE, m< N
c+1value,
be a sub-carrier number in PRB,
pRB number for downlink bandwidth; For the PDCCH transmitting, can determine resource according to the ARI territory in this PDCCH on SCC.
In addition, terminal is based on above-mentioned
according to following formula, determine the PRB numbering at this PUCCH format 1b resource place:
Wherein,
for the parameter of high level configuration, n
sfor time slot (slot) numbering.Consider the n of the PDCCH of corresponding different carrier and/or different subframes
cCE, ivalue is independent to be determined, therefore can not guarantee to number definite PUCCH format 1b resource according to the minimum CCE of PDCCH
in same PRB.The resource of ARI indication is also relatively independent with the resource obtaining according to the minimum CCE of PDCCH, can not guarantee that the PUCCH format 1b resource obtaining under these two kinds of resource acquisition modes is in same PRB.
Table 1E-SORTD, 3 bit ACK/NACK mapping form
Table 2E-SORTD, 4 bit ACK/NACK mapping form
(3) RSTD (Resource Selection Transmit Diversity, resource selection transmit diversity) scheme.
When RSTD scheme is transmitted 2 antenna ports, the thought of ACK/NACK mapping form design is: for M=2,3,4 bit ACK/NACK, need to take 4 PUCCH format 1b resources; For M bit ACK/NACK assembled state, as shown in Table 3 and Table 4, modulation symbol (the QPSK modulation symbol that this ACK/NACK is corresponding) in first antenna port and second antenna port transmission can be different, and the modulation symbol that on second antenna port, each time slot is corresponding can be different, pilot tone on each antenna port and data can be in 4 candidate channel resources different PUCCH format 1b transmitted over resources, and on same antenna port, pilot tone and data are used adjacent PUCCH format 1b resource in mapping form.
RSTD scheme need take 4 PUCCH format 1b resources, with respect to SORTD scheme, transmit 3 bit ACK/NACK and need take 6 PUCCH format 1b resources, transmit 4 bit ACK/NACK and need take 8 PUCCH format 1b resources, PUCCH resource overhead greatly reduces.But in this scheme, data on each antenna port and pilot tone may be in different PUCCH format 1b transmitted over resources, therefore may exist equally the frequency domain position of data and pilot tone respectively in different PRB, experience different channels, cannot use pilot data to carry out correct channel estimating to data, and then reduce demodulation performance.
The RSTD of table 3 based on pilot tone and timeslot number, 3 bit ACK/NACK mapping form
The RSTD of table 4 based on pilot tone and timeslot number, 4 bit ACK/NACK mapping form
In realizing process of the present invention, inventor finds at least to exist in prior art following problem:
In prior art, the resource acquisition mode of PUCCH format 1b with channel selection in many antenna ports transmission plan also do not determined, is not suitable for many antenna ports transmission plan of PUCCH format 1b with channel selection according to the mode of the minimum CCE numbering Gains resources of PDCCH.
Embodiment
In LTE-A system, PUCCH format 1b with channel selection can be used to transmission and is no more than 4 bit ACK/NACK feedback information; In Rel-10, consider that the resource overhead of SORTD technology is excessive, PUCCH format 1b with channel selection is not defined to many antenna ports transmission plan; In Rel-11, the up covering of collateral security, raising ACK/NACK transmission reliability and saving power angle are considered, need the lower PUCCH format 1b with channel selection many antenna ports transmission plan (being emission diversity scheme) of further resources for research expense.
Current in candidate transmitting diversity scheme (as E-SORTD and RSTD), although can guarantee that the PUCCH resource overhead that PUCCH format 1b with channel selection takies when the transmission of many antenna ports is less, but the data on same antenna port and pilot tone may be used different PUCCH resources to transmit, when different PUCCH resources is positioned at different PRB, will cause channel estimation accuracy to decline, thereby reduce demodulation performance.
For the problems referred to above, the embodiment of the present invention provides resource acquiring method and the equipment under a kind of many antenna ports scene, the PUCCH resource of using with the data guaranteeing to transmit on same antenna port and pilot tone in same PRB, thereby guaranteed the performance gain of PUCCH transmit diversity.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention one provides the resource acquiring method under a kind of many antenna ports scene, this resource acquiring method includes but not limited to the resource acquiring method of PUCCH format 1b with channel selection when many antenna port transmission, this antenna port includes but not limited to the antenna port of PUCCH, and the method is applicable to E-SORTD, M-SORTD (Modified SORTD, improved SORTD), in the emission diversity scheme such as RSTD, can certainly be applied to other schemes, in the embodiment of the present invention, repeat no more.
As shown in Figure 3, the resource acquiring method under this many antenna ports scene comprises the following steps:
Step 301, terminal equipment is determined ascending control information to be sent.
Step 302, terminal equipment receives the resource indication information that base station equipment sends, and channel is selected required K candidate PUCCH resource while obtaining the transmission of many antenna ports according to resource indication information, this resource is channel resource, follow-uply all take resource and describes as example.
Concrete, when in many antenna port transmission, terminal equipment can PDCCH signaling or high-level signaling by comprising resource indication bit territory receive the resource indication information that base station equipment sends, and channel is selected required K candidate PUCCH resource while obtaining many antenna ports transmission according to resource indication bit territory.
In the embodiment of the present invention, in this K obtaining a candidate PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB; Wherein, P is applied in the ACK/NACK mapping form of many antenna ports transmission, and during many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.
For example, the data symbol that each ACK/NACK feedback information state in table 1 and table 2 shown in bold Italic is corresponding and frequency pilot sign have taken respectively different PUCCH resources at the 2nd antenna port and have transmitted, be that Ch0 and Ch1 form 1 pair of resource pair, the data symbol that each ACK/NACK feedback information state shown in non-bold Italic is corresponding and frequency pilot sign have taken respectively different PUCCH resources at the 2nd antenna port and have transmitted, and the resource right with the first pair of resource is not identical, be that Ch2 and Ch3 form 1 pair of resource pair, therefore, for the ACK/NACK mapping form shown in table 1 and table 2, channel selection scheme needs 2 pairs of above-mentioned resources to transmitting for many antenna ports altogether, so P=2,
Again for example, the data symbol that each ACK/NACK feedback information state in table 3 and table 4 shown in bold Italic is corresponding and frequency pilot sign have taken respectively different PUCCH resources at the 1st antenna port and have transmitted, be that Ch0 and Ch1 form 1 pair of resource pair, at the 2nd antenna port, also having taken respectively different PUCCH resources transmits, and the resource right with the first pair of resource is not identical, be that Ch2 and Ch3 form 1 pair of resource pair, therefore, for the ACK/NACK mapping form shown in table 3 and table 4, channel selection scheme needs 2 pairs of above-mentioned resources to transmitting for many antenna ports altogether, so P=2.
Preferably, when many antenna ports scene is 2 antenna port scene, K candidate PUCCH resource can be 4 candidate PUCCH resources, for 2 antenna port transmission, K=4.
Step 303, terminal equipment, to each antenna port, according to ascending control information to be sent, selects L resource to be respectively used to transmit data symbol and the frequency pilot sign that ascending control information to be sent is corresponding in K candidate PUCCH resource.
In the embodiment of the present invention, L resource is in same PRB, and L is identical or different to each antenna port, and L PUCCH resource difference using of each antenna port; Wherein, 1≤L≤2≤K.While adopting the transmission of channel selection scheme, the corresponding data symbol of an ascending control information and frequency pilot sign can be used identical or different PUCCH resources to send on an antenna port, depend on the design of mapping form, but the PUCCH resource that the data symbol sending on the antenna port that need to guarantee to coexist and frequency pilot sign are used is in same PRB, and different from the PUCCH resource of using on other antenna ports for sending the PUCCH resource of data symbol and frequency pilot sign on each antenna port.
Step 304, terminal equipment is used resource corresponding to data symbol of selecting to send data symbol at each antenna port, and uses resource pilot symbol transmitted corresponding to frequency pilot sign of selecting.
In the embodiment of the present invention, above-mentioned high-level signaling comprises RRC (Radio Resource Control, Radio Resource is controlled) signaling and/or MAC (MediaAccess Control, media access control) signaling.
In the embodiment of the present invention, above-mentioned PDCCH signaling includes corresponding PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel) PDCCH that the PDCCH of transmission and/or indicating downlink SPS (Semi-Persistent Scheduling, semi-continuous scheduling) resource discharge.Preferably, the resource indication bit territory that above-mentioned PDCCH signaling comprises, DCI (the Downlink Control Information using for PDCCH signaling, Downlink Control Information) bit field newly increasing in format, or the reusing of original bit field in the DCI format using for PDCCH signaling.
Further, when resource indication bit territory is in the DCI format that uses of PDCCH signaling during the reusing of original bit field; In TDD system, reuse DAI (the Downlink Assignment Index of corresponding PCC, descending allocation index) be greater than TPC (Transmit Power Control, the transmitting power is controlled) territory in the DCI format that the PDCCH of 1 PDCCH and corresponding SCC uses; In FDD system, reuse the TPC territory in the DCI format that the PDCCH of corresponding SCC uses.
It should be noted that, if there are a plurality of PDCCH signalings that comprise resource indication bit territory (being that terminal equipment has received a plurality of PDCCH signalings that comprise resource indication bit territory) in a feedback window, the indicated value in the resource indication bit territory comprising in a plurality of PDCCH signalings should be identical, wherein, feedback window is for need to carry out at same sub-frame of uplink the descending sub frame set of uplink control information feedback.
Especially, if the indicated value in the resource indication bit territory in a plurality of PDCCH signalings that terminal equipment receives is different, terminal equipment judgement receives mistake, or there is scheduling mistake in base station equipment, can abandon this transmission, or the PUCCH resource collection that the indicated value of using a nearest PDCCH signaling is indicated or use have the indicated PUCCH resource collection of indicated value in one group of PDCCH signaling that PDCCH signaling number is maximum that comprises of identical indicated value, or use a pre-configured fixing PUCCH resource collection of high-level signaling.
In the embodiment of the present invention, resource indication bit territory at least comprises
(preferably, resource indication bit territory comprises bit
bit), and indication N organizes one group in the pre-configured resource group of high-level signaling, each resource group comprises K PUCCH resource, in K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB, and when P is many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.Preferably, the pre-configured N group resource of terminal equipment of giving of above-mentioned high-level signaling can be multiplexing between the terminal equipment under many antenna port configurations at a plurality of employing PUCCH format1b with channel selection, to avoid sharing a plurality of terminal equipments of N group resource by scheduling, in same subframe, use same group of resource in the control information of many antenna ports feeding back uplink simultaneously.
In the embodiment of the present invention, do not get rid of another kind of resource indicating mode: by the resource indication bit territory in high-level signaling or PDCCH signaling, directly indicate K PUCCH resource yet, in K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB, and when P is many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.Preferably, above-mentioned configuration can be multiplexing between the terminal equipment under many antenna port configurations at a plurality of employing PUCCH format 1b with channel selection to K resource of terminal equipment, to avoid sharing a plurality of terminal equipments of K resource by scheduling, in same subframe, adopt PUCCH format 1b with channel selection in the control information of many antenna ports feeding back uplink simultaneously.
It should be noted that, said method is equally applicable to FDD and TDD system, and the ascending control information that the PUCCH format 1b with channel selection in the embodiment of the present invention transmits mainly refers to ACK/NACK feedback information, but do not get rid of for transmitting the scene of other ascending control informations yet, as SR, cycle CSI (Channel State Information, channel condition information) etc., wherein cycle CSI comprises cycle CQI (Channel Quality Indicator, channel quality indication) information, PMI (Pre-coding Matrix Indicator, pre-coding matrix indication) information, RI (Rank Indication, order indication) information, PTI (Precoder Type Indication, the indication of precoding type) information.
It should be noted that, the antenna port in the technical scheme that the embodiment of the present invention proposes specifies justice to the antenna port of PUCCH.Terminal equipment in the technical scheme that the embodiment of the present invention proposes can be for adopting the terminal equipment of PUCCH format 1b with channel selection.PUCCH resource in the technical scheme that the embodiment of the present invention proposes is PUCCH format 1b resource.
Embodiment bis-
Above-described embodiment one is the processing for terminal equipment, corresponding, processing for base station equipment, the embodiment of the present invention two provides the resource allocation method under a kind of many antenna ports scene, this resource allocation method includes but not limited to the resource acquiring method of PUCCH format 1b with channel selection when many antenna port transmission, this antenna port includes but not limited to the antenna port of PUCCH, and the method is applicable to E-SORTD, M-SORTD, in the emission diversity schemes such as RSTD, can certainly be applied to other schemes, in the embodiment of the present invention, repeat no more.As shown in Figure 4, the resource allocation method under this many antenna ports scene comprises the following steps:
Step 401, base station equipment determines that terminal equipment channel when the transmission of many antenna ports selects K the candidate PUCCH resource of using, this resource is channel resource, follow-uply all take resource and describes as example; In K candidate PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB; P is applied in the ACK/NACK mapping form of many antenna ports transmission, and during many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.The specifically annotation to P, the description with terminal equipment side, is not repeated herein.
Preferably, when many antenna ports scene is 2 antenna port scene, K candidate PUCCH resource can be 4 candidate PUCCH resources, for 2 antenna port transmission, K=4.
Step 402, base station equipment sends the resource indication information that is used to indicate K candidate PUCCH resource to terminal equipment, and when indicating terminal equipment obtains many antenna port transmission according to resource indication information, channel is selected required K candidate PUCCH resource.
Concrete, base station equipment sends resource indication information by PDCCH signaling or the high-level signaling that comprises resource indication bit territory to terminal equipment, and when indicating terminal equipment obtains many antenna port transmission according to resource indication bit territory, channel is selected required K candidate PUCCH resource.
In the embodiment of the present invention, above-mentioned high-level signaling comprises RRC signaling and/or MAC signaling.
In the embodiment of the present invention, above-mentioned PDCCH signaling includes the PDCCH of corresponding PDSCH transmission and/or the PDCCH that indicating downlink SPS resource discharges.Preferably, the resource indication bit territory that above-mentioned PDCCH signaling comprises, the bit field newly increasing in the DCI format using for PDCCH signaling, or the reusing of original bit field in the DCI format using for PDCCH signaling.
Further, when resource indication bit territory is in the DCI format that uses of PDCCH signaling during the reusing of original bit field; In TDD system, the DAI that reuses corresponding PCC is greater than the TPC territory in the DCI format that the PDCCH of 1 PDCCH and corresponding SCC uses; In FDD system, reuse the TPC territory in the DCI format that the PDCCH of corresponding SCC uses.
It should be noted that, if there are a plurality of PDCCH signalings that comprise resource indication bit territory (being that base station equipment need to send a plurality of PDCCH signalings that comprise resource indication bit territory) in a feedback window, the indicated value in the resource indication bit territory comprising in a plurality of PDCCH signalings should be identical, wherein, feedback window is for need to carry out at same sub-frame of uplink the descending sub frame set of uplink control information feedback.
Especially, if the indicated value in the resource indication bit territory in a plurality of PDCCH signalings that terminal equipment receives is different, terminal equipment judgement receives mistake, or there is scheduling mistake in base station equipment, can abandon this transmission, or the PUCCH resource collection that the indicated value of using a nearest PDCCH signaling is indicated or use have the indicated PUCCH resource collection of indicated value in one group of PDCCH signaling that PDCCH signaling number is maximum that comprises of identical indicated value, or use a pre-configured fixing PUCCH resource collection of high-level signaling.
In the embodiment of the present invention, resource indication bit territory at least comprises
(preferably, resource indication bit territory comprises bit
bit), and indication N organizes one group in the pre-configured resource group of high-level signaling, each resource group comprises K PUCCH resource, in K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB, and when P is many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.Based on this, the method also comprises: base station equipment is organized channel resource to terminal equipment configuration N in advance by high-level signaling, each channel resource group comprises K PUCCH resource, in K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting 2 internal resources of each resource in same PRB, when P is the transmission of many antenna ports, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.Preferably, the pre-configured N group resource of terminal equipment of giving of above-mentioned high-level signaling can be multiplexing between the terminal equipment under many antenna port configurations at a plurality of employing PUCCH format 1bwith channel selection, to avoid sharing a plurality of terminal equipments of N group resource by scheduling, in same subframe, use same group of resource in the control information of many antenna ports feeding back uplink simultaneously.
In the embodiment of the present invention, do not get rid of another kind of resource indicating mode: by the resource indication bit territory in high-level signaling or PDCCH signaling, directly indicate K PUCCH resource yet, in K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB, and when P is many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.Preferably, above-mentioned configuration can be multiplexing between the terminal equipment under many antenna port configurations at a plurality of employing PUCCH format 1b with channel selection to K resource of terminal equipment, to avoid sharing a plurality of terminal equipments of K resource by scheduling, in same subframe, adopt PUCCH format 1b with channel selection in the control information of many antenna ports feeding back uplink simultaneously.
Step 403, base station equipment is on K candidate PUCCH channel resource, the ascending control information that sense terminals equipment sends, be base station equipment according to ACK/NACK mapping form, configuration to K candidate PUCCH resource of terminal equipment on data symbol and/or the frequency pilot sign of receiving terminal apparatus transmission.
It should be noted that, said method is equally applicable to FDD and TDD system, and the ascending control information that the PUCCH format 1b with channel selection in the embodiment of the present invention transmits mainly refers to ACK/NACK feedback information, but do not get rid of for transmitting the scene of other ascending control informations yet, as SR, cycle CSI etc., cycle CSI comprises cycle CQI information, PMI information, RI information, PTI information.
It should be noted that, the antenna port in the technical scheme that the embodiment of the present invention proposes specifies justice to the antenna port of PUCCH.Terminal equipment in the technical scheme that the embodiment of the present invention proposes can be for adopting the terminal equipment of PUCCH format 1b with channel selection.PUCCH resource in the technical scheme that the embodiment of the present invention proposes is PUCCH format 1b resource.
Below in conjunction with concrete application scenarios, the present invention is described in detail.
Embodiment tri-
In the present embodiment, take FDD system as example, FDD system call schematic diagram as shown in Figure 5, suppose that terminal equipment adopts PUCCH format 1b with channel selection to transmit 3 bit ACK/nack message, adopt 2 antenna port transmission, ACK/NACK mapping form is as shown in table 1 or table 3, and concrete steps are as follows:
Step 1, base station equipment be 4 channel resources for 2 antenna port transmission to terminal equipment configuration.
Mode one, base station equipment are determined 4 PUCCH format 1b channel resources, are respectively
and pass through RRC signaling to terminal equipment.
From above-mentioned ACK/NACK mapping form, in this mapping form, exist P=2 to 2 resources pair that different channels resource forms by being respectively used to transmit data symbol corresponding to same ACK/NACK feedback information sequence and frequency pilot sign, wherein 1 corresponding resource is to by resource { Ch0, Ch1} forms, another corresponding resource is to by resource { Ch2, Ch3} forms, therefore need base station equipment when above-mentioned 4 the PUCCH format 1b channel resources of configuration, guarantee wherein to have 2 pairs of nonoverlapping resources pair of resource, 2 resources that comprise in each resource are in same PRB.
Preferably, base station equipment can configure
in same PRB, configuration
in same PRB.
Mode two, base station equipment are determined 4 groups of PUCCH format 1b channel resource groups, and every group comprises 4 PUCCH format 1b channel resources
i=0 wherein, 1,2,3, and prenotice to terminal equipment by RRC signaling.
Further, base station equipment is selected 1 group in above-mentioned 4 groups of resources, for example, select the 1st group of resource, and 2 bit TPC territories in the PDCCH of scheduling SCC are set to the indicating status corresponding with selected resource group, in routine corresponding relation as shown in table 5,2 bit TPC territories are set to " 00 "; Wherein consistent with the analysis of mode one, P=2, i.e. each resource group domestic demand of base station equipment configuration guarantees wherein there are 2 pairs of nonoverlapping resources pair of resource, 2 resources that each resource centering comprises are in same PRB.
Preferably, base station equipment can configure
in same PRB,
in same PRB.
The corresponding relation of table 52 bit TPC territory indicating status and indicated PUCCH format 1b resource group
The different conditions of 2 bit TPC |
PUCCH format 1b resource group |
00 |
The 1st resource group |
01 |
The 2nd resource group |
10 |
The 3rd resource group |
11 |
The 4th resource group |
Step 2, terminal equipment downlink data receiving, obtain corresponding ACK/NACK feedback information sequence, as [NACK, NACK, ACK].
Step 3, terminal equipment receive by high-level signaling or PDCCH signaling the configuration information that carries resource indication that base station equipment sends.
In aforesaid way one, terminal equipment directly receives 4 PUCCH format 1b resources; And will
be mapped to successively Ch0, Ch1, Ch2, Ch3, thereby guarantee Ch0, resource corresponding to Ch1 in same PRB, Ch2, resource corresponding to Ch3 is in same PRB.
In aforesaid way two, the TPC territory that terminal equipment receives in the PDCCH that dispatches SCC is " 00 ", according to table 5, determines 4 PUCCH format 1b resources using in the 1st resource group; And will
be mapped to successively Ch0, Ch1, Ch2, Ch3, thereby guarantee Ch0, resource corresponding to Ch1 in same PRB, Ch2, resource corresponding to Ch3 is in same PRB.
Step 4, terminal equipment, according to table 1, to the 1st antenna port, determine that data symbol and frequency pilot sign that [NACK, NACK, ACK] is corresponding are all used Ch2 transmission, exist
transmitted over resources; To the 2nd antenna port, determine that the data symbol that [NACK, NACK, ACK] is corresponding is used Ch1 transmission, exists
transmitted over resources, frequency pilot sign is used Ch0 transmission, exists
transmitted over resources.Or,
Terminal equipment, according to table 3, to the 1st antenna port, determines that data symbol and frequency pilot sign that [NACK, NACK, ACK] is corresponding are all used Ch2 transmission, exist
transmitted over resources; To the 2nd antenna port, determine that data symbol and frequency pilot sign that [NACK, NACK, ACK] is corresponding are all used Ch3 transmission, exist
transmitted over resources;
Afterwards, terminal equipment is to each antenna port, at data and corresponding channel resource transmitting data and the frequency pilot sign of pilot tone difference.
In the embodiment of the present invention, at aforesaid way for the moment, base station equipment is in 4 PUCCH format 1b resources that configure by RRC to terminal equipment, or when aforesaid way two, in 4 PUCCH format 1b resources that base station equipment comprises in the 1st group of resource of indicating by PDCCH to terminal equipment; According to the reception condition of data symbol and frequency pilot sign on table 1 or each channel of table 3 blind check, and then counter tabling look-up obtains the ACK/NACK feedback information sequence [NACK, NACK, ACK] of terminal equipment transmission.
Embodiment tetra-
In the present embodiment, take TDD system as example, TDD system call schematic diagram as shown in Figure 6, suppose that terminal equipment adopts PUCCH format 1b with channel selection to transmit 4 bit ascending control informations, adopt 2 antenna port transmission, ACK/NACK mapping form is as shown in table 2 or table 4, and concrete steps are as follows:
Step 1, base station equipment be 4 channel resources for 2 antenna port transmission to terminal equipment configuration.
Mode one, base station equipment are determined 4 PUCCH format 1b channel resources, are respectively
and pass through RRC signaling to terminal equipment.
From above-mentioned ACK/NACK mapping form, in this mapping form, exist P=2 to 2 resources pair that different channels resource forms by being respectively used to transmit data symbol corresponding to same ACK/NACK feedback information sequence and frequency pilot sign, wherein 1 corresponding resource is to by resource { Ch0, Ch1} forms, another corresponding resource is to by resource { Ch2, Ch3} forms, therefore need base station equipment when above-mentioned 4 the PUCCH format 1b channel resources of configuration, guarantee wherein to have 2 pairs of nonoverlapping resources pair of resource, 2 resources that comprise in each resource are in same PRB.
Preferably, base station equipment can configure
in same PRB, configuration
in same PRB.
Mode two, base station equipment are determined 4 groups of PUCCH format 1b channel resource groups, and every group comprises 4 PUCCH format 1b channel resources
i=0 wherein, 1,2,3, and prenotice to terminal equipment by RRC signaling.
Further, base station equipment is selected 1 group in above-mentioned 4 groups of resources, for example, select the 1st group of resource, and 2 bit TPC territories in the PDCCH of scheduling SCC are set to the indicating status corresponding with selected resource group, in routine corresponding relation as shown in table 5,2 bit TPC territories are set to " 00 "; Wherein consistent with the analysis of mode one, P=2, i.e. each resource group domestic demand of base station equipment configuration guarantees wherein there are 2 pairs of nonoverlapping resources pair of resource, 2 resources that each resource centering comprises are in same PRB.
Preferably, base station equipment can configure
in same PRB,
in same PRB.
Step 2, terminal equipment downlink data receiving, obtain corresponding ACK/NACK feedback information sequence, as [ACK, ACK, ACK, ACK].
Step 3, terminal equipment receive by high-level signaling or PDCCH signaling the configuration information that carries resource indication that base station equipment sends.
In aforesaid way one, terminal equipment directly receives 4 PUCCH format 1b resources; And will
be mapped to successively Ch0, Ch1, Ch2, Ch3, thereby guarantee Ch0, resource corresponding to Ch1 in same PRB, Ch2, resource corresponding to Ch3 is in same PRB.
In aforesaid way two, terminal equipment receives the PDCCH of DAI > 1 of scheduling PCC and the TPC territory in the PDCCH of scheduling SCC is all " 00 ", according to table 5, determines 4 PUCCH format 1b resources using in the 1st resource group; And will
be mapped to successively Ch0, Ch1, Ch2, Ch3, thereby guarantee Ch0, resource corresponding to Ch1 in same PRB, Ch2, resource corresponding to Ch3 is in same PRB.
Step 4, terminal equipment, according to table 2, to the 1st antenna port, determine that data symbol and frequency pilot sign that [ACK, ACK, ACK, ACK] is corresponding are all used Ch1 transmission, exist
transmitted over resources; To the 2nd antenna port, determine that the data symbol that [ACK, ACK, ACK, ACK] is corresponding is used Ch2 transmission, exists
transmitted over resources, frequency pilot sign is used Ch3 transmission, exists
transmitted over resources.Or,
Terminal equipment, according to table 4, to the 1st antenna port, determines that the data symbol that [ACK, ACK, ACK, ACK] is corresponding is used Ch1 transmission, exists
transmitted over resources, frequency pilot sign is used Ch0 transmission, exists
transmitted over resources; To the 2nd antenna port, determine that the data symbol that [ACK, ACK, ACK, ACK] is corresponding is used Ch3 transmission, exists
transmitted over resources, frequency pilot sign is used Ch2 transmission, exists
transmitted over resources.
Afterwards, terminal equipment is to each antenna port, at data and corresponding channel resource transmitting data and the frequency pilot sign of pilot tone difference.
In the embodiment of the present invention, at aforesaid way for the moment, base station equipment is in 4 PUCCH format 1b resources that configure by RRC to terminal equipment, or when aforesaid way two, in 4 PUCCH format 1b resources that base station equipment comprises in the 1st group of resource of indicating by PDCCH to terminal equipment; According to the reception condition of data symbol and frequency pilot sign on table 2 or each channel of table 4 blind check, and then counter tabling look-up obtains the ACK/NACK feedback information sequence [ACK, ACK, ACK, ACK] of terminal transmission.
In sum, by the technical scheme that adopts various embodiments of the present invention to provide, for the terminal equipment that adopts PUCCH format 1b with channel selection transmission plan, when in many antenna port transmission, according to ACK/NACK resource in PDCCH signaling, indicate the pre-configured of territory or high-level signaling, can get the candidate PUCCH format 1b resource for many antenna port transmission, and candidate PUCCH format 1b resource at least meets in same antenna port PUCCH format 1b resource for data and pilot transmission in same PRB, the method can guarantee that PUCCH format 1b resource that the data transmitted on same antenna port and pilot tone used is in same PRB, thereby has guaranteed the performance gain of PUCCH transmit diversity.
Embodiment five
Inventive concept based on same with said method, also provides a kind of terminal equipment in the embodiment of the present invention, as shown in Figure 7, this terminal equipment comprises:
Determination module 11, for determining ascending control information to be sent;
Acquisition module 12, the resource indication information sending for receiving base station equipment, while obtaining the transmission of many antenna ports according to described resource indication information, channel is selected required K candidate PUCCH resource, in described K candidate PUCCH resource, at least comprise P to the mutually different resource of resource to satisfied: internal 2 resources of each resource are in same PRB;
Select module 13, be used for for each antenna port, according to described ascending control information to be sent, in described K candidate PUCCH resource, select L resource to be respectively used to transmit data symbol and the frequency pilot sign that described ascending control information to be sent is corresponding, a described L resource is in same PRB;
Sending module 14, for using resource corresponding to data symbol of selecting to send described data symbol at each antenna port, and is used resource corresponding to frequency pilot sign of selecting to send described frequency pilot sign.
In the embodiment of the present invention, described acquisition module 12, specifically for: while determining that described P is the transmission of many antenna ports, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form;
Determine described 1≤L≤2≤K, and described L is identical or different to each antenna port, described L the PUCCH resource difference that each antenna port is used.
In the embodiment of the present invention, described acquisition module 12, specifically for: the PDCCH signaling by comprising resource indication bit territory or high-level signaling receive the resource indication information that described base station equipment sends, and channel is selected required K candidate PUCCH resource while obtaining many antenna ports transmission according to described resource indication bit territory.
In the embodiment of the present invention, described acquisition module 12, specifically for: by RRC signaling and/or the MAC signaling that comprises resource indication bit territory, receive the resource indication information that described base station sends.
In the embodiment of the present invention, described acquisition module 12, specifically for: the PDCCH that the PDCCH by comprising the corresponding PDSCH of having of resource indication bit territory transmission and/or indicating downlink SPS resource discharge receives the resource indication information that described base station equipment sends.
In the embodiment of the present invention, described acquisition module 12, specifically for: the bit field newly increasing in the DCI format using by described PDCCH signaling as described resource indication bit territory, or the reusing as described resource indication bit territory of the original bit field in the DCI format using by described PDCCH signaling.
In the embodiment of the present invention, described acquisition module 12, specifically for: when described resource indication bit territory is in the DCI format that uses of described PDCCH signaling during the reusing of original bit field, in TDD system, the DAI that reuses corresponding PCC is greater than the TPC territory in the DCI format that the PDCCH of 1 PDCCH and corresponding SCC uses; In FDD system, reuse the TPC territory in the DCI format that the PDCCH of corresponding SCC uses.
In the embodiment of the present invention, described acquisition module 12, specifically for: when described terminal equipment has received the PDCCH signaling that comprises resource indication bit territory described in a plurality of, determine that the indicated value in the resource indication bit territory comprising in PDCCH signaling described in each is identical.
In the embodiment of the present invention, described
acquisition module 12, specifically for: determine that described resource indication bit territory at least comprises
bit, and indication N organizes one group in the pre-configured resource group of high-level signaling, described each resource group comprises K PUCCH resource, in described K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB, and when described P is many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Embodiment six
Inventive concept based on same with said method, also provides a kind of base station equipment in the embodiment of the present invention, as shown in Figure 8, this base station equipment comprises:
Determination module 21, for determining that terminal equipment channel when many antenna ports transmission selects K the candidate PUCCH resource of using, in described K candidate PUCCH resource, at least comprise P to the mutually different resource of resource to satisfied: internal 2 resources of each resource are in same PRB;
Communication module 22, for send the resource indication information that is used to indicate described K candidate PUCCH resource to described terminal equipment, while indicating described terminal equipment to obtain many antenna port transmission according to described resource indication information, channel is selected required K candidate PUCCH resource;
Receiver module 23, at described K candidate PUCCH channel resource, detects the ascending control information that described terminal equipment sends.
In the embodiment of the present invention, described communication module 22, specifically for: while determining that described P is the transmission of many antenna ports, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.
In the embodiment of the present invention, described communication module 22, specifically for: by PDCCH signaling or the high-level signaling that comprises resource indication bit territory, to described terminal equipment, send described resource indication information, while indicating described terminal equipment to obtain many antenna port transmission according to described resource indication bit territory, channel is selected required K candidate PUCCH resource.
In the embodiment of the present invention, described communication module 22, specifically for: by RRC signaling and/or the MAC signaling that comprises resource indication bit territory, to described terminal equipment, send described resource indication information.
In the embodiment of the present invention, described communication module 22, specifically for: the PDCCH that the PDCCH by comprising the corresponding PDSCH of having of resource indication bit territory transmission and/or indicating downlink SPS resource discharge sends described resource indication information to described terminal equipment.
In the embodiment of the present invention, described communication module 22, specifically for: the bit field newly increasing in the DCI format using by described PDCCH signaling as described resource indication bit territory, or the reusing as described resource indication bit territory of the original bit field in the DCI format using by described PDCCH signaling.
In the embodiment of the present invention, described communication module 22, specifically for: when described resource indication bit territory is in the DCI format that uses of described PDCCH signaling during the reusing of original bit field, in TDD system, the DAI that reuses corresponding PCC is greater than the TPC territory in the DCI format that the PDCCH of 1 PDCCH and corresponding SCC uses; In FDD system, reuse the TPC territory in the DCI format that the PDCCH of corresponding SCC uses.
In the embodiment of the present invention, described communication module 22, specifically for: when described base station equipment need to send the PDCCH signaling that comprises resource indication bit territory described in a plurality of, determine that the indicated value in the resource indication bit territory comprising in PDCCH signaling described in each is identical.
In the embodiment of the present invention, described
communication module 22, specifically for: determine that described resource indication bit territory at least comprises
bit, and indication N organizes one group in the pre-configured resource group of high-level signaling, described each resource group comprises K PUCCH resource, in described K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting: internal 2 resources of each resource are in same PRB, and when described P is many antenna ports transmission, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form;
And also for organizing channel resource to described terminal equipment configuration N in advance by high-level signaling, described each channel resource group comprises K PUCCH resource, in described K PUCCH resource, at least comprise P to the mutually different resource of resource to meeting 2 internal resources of each resource in same PRB, when described P is the transmission of many antenna ports, channel is selected the right number of resource that required 2 different PUCCH resources that are respectively used to data symbol that transmitting uplink control information is corresponding and frequency pilot sign form.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.