CN102045143B - Multi-antenna feedback mapping method and device - Google Patents

Abstract

The embodiment of the invention provides a multi-antenna feedback mapping method and a device. The method comprises the following steps: sending an assignment message of uplink grouped data to a terminal by a base station; receiving the uplink grouped data at the base station which is sent by at least two-way codon and multilayer through the terminal according to the assignment message; confirming the value of a demodulation reference mark participated in the position calculation of a downlink feedback channel of the uplink grouped data by the base station according to a cyclic shifting indication of the demodulation reference mark in the assignment message; conforming the lowest resource index value participated in the position calculation of downlink feedback channel of the uplink grouped data according to the resource position index in the assignment message; conforming the position of the downlink feedback channel by the base station according to the value of the demodulation reference mark and the lowest resource index value, and feeding the receiving state of the uplink grouped data back to the terminal by the base station through the downlink feedback channel. Through the method and device provided by the embodiment of the invention, the feedback and mapping of the receiving state of the uplink multi-codon are finished and the highest compatibility of LTE (long term evolution) system in the evolution process is ensured.

Description

A kind of feedback mapping method and device of many antennas

Technical field

The present invention relates to communication technical field, relate in particular to a kind of feedback mapping method and device of many antennas.

Background technology

MIMO (Multi Input Multi Output, multiple-input, multiple-output) technology is the important breakthrough of wireless mobile communications field intelligent antenna technology, this technology can improve capability of communication system and the availability of frequency spectrum exponentially under the situation that does not increase bandwidth, be the key technology that the third generation mobile communication system must adopt.

The transmitting terminal of mimo system and receiving terminal are provided with many antennas, when the transmission signal, described transmitting terminal can adopt the mode of space division multiplexing (SM), a plurality of independently signals are sent by different transmitting antennas, described receiving terminal can receive signal from different reception antennas, and obtains the signal of transmitting terminal emission from the described signal that receives.In mimo system, transmitting terminal can adopt the mode of single codeword (SCW) and two kinds of space division multiplexings of many code words (MCW) to send signal.Described single codeword mode refers to that transmitting terminal forms one tunnel code word (codeword) to a plurality of signals that will send and adopts identical code modulation mode to carry out coded modulation and transmission; Described many code words mode refers to that a plurality of signals that will send are formed two-way to transmitting terminal or the multichannel code word adopts two or more code modulation mode to carry out coded modulation and transmission respectively.By the regulation of existing LTE standard, the code word after the two-way coded modulation can be mapped to 2 layers (layer), 3 layers or 4 layers.

HARQ (Hybrid automatic repeat request, mix automatic retransmission technique) also in the existing communication system, be widely used, its principle is, receiving terminal receives corresponding packet, feed back accepting state correct or wrong (ACK or NAK) by specific downstream feedback channel to transmitting terminal, if mistake, transmitting terminal can carry out the re-transmission of packet, if correct, transmitting terminal is not done any processing.

The inventor finds in realizing process of the present invention, in the LTE system, up is adopted 1 transmitting antenna, so up realization of only supporting the SCW single codeword, this moment is at the single codeword of transmitting terminal, receiving terminal only needs the accepting state of feedback code word: correct or mistake, and trigger the re-transmission of single codeword thus.And for the LTE+ system, last guild supports a plurality of code words and a plurality of layer, therefore, how to carry out the feedback of many code words accepting state and to shine upon not relating in the prior art at up many code words.

Summary of the invention

The embodiment of the invention provides a kind of feedback mapping method and device of many antennas, so that the accepting state of up many code words is fed back and shone upon.

The above-mentioned purpose of the embodiment of the invention is achieved by the following technical solution:

A kind of feedback mapping method of many antennas, described method comprises: the base station sends the assignment message of ascending packet data to terminal; The base station receives the ascending packet data that described terminal sends by two-way code word at least and multilayer according to described assignment message; The base station is according to the cyclic shift indication of the demodulation reference mark in the described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation, according to the resource location index in the described assignment message, the minimum resources index value of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation; The position that the downstream feedback channel of described ascending packet data is determined according to value and definite minimum resources index value of the demodulation reference mark of determining in the base station; The accepting state of described ascending packet data is fed back in the base station to described terminal by described downstream feedback channel.

A kind of many antenna feedback mapping devices, described device comprises: transmitting element is used for to the assignment message of terminal transmission ascending packet data; Receiving element be used for to receive the ascending packet data that described terminal sends by two-way code word and multilayer at least according to described assignment message; Determining unit, be used for the cyclic shift indication according to the demodulation reference mark of described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation, according to the resource location index in the described assignment message, determine to participate in the minimum resources index value of position calculation of the downstream feedback channel of described ascending packet data, determine the position of the downstream feedback channel of described ascending packet data according to the value of the demodulation reference mark of determining and the minimum resources index value determined; Feedback unit is for accepting state from described downstream feedback channel to described terminal that feed back described ascending packet data by.

By the method and apparatus of present embodiment, finished feedback and mapping to the accepting state of up many code words, and guaranteed the strongest compatibility in the LTE system evolved process.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:

Fig. 1 is the method flow diagram of the embodiment of the invention;

Fig. 2 is a kind of execution mode flow chart embodiment illustrated in fig. 1;

Fig. 3 is another execution mode flow chart embodiment illustrated in fig. 1;

Fig. 4 is another execution mode flow chart embodiment illustrated in fig. 1;

Fig. 5 is another execution mode flow chart embodiment illustrated in fig. 1;

Fig. 6 is another execution mode flow chart embodiment illustrated in fig. 1;

Fig. 7 is another execution mode flow chart embodiment illustrated in fig. 1;

Fig. 8 is another execution mode flow chart embodiment illustrated in fig. 1;

Fig. 9 a is the device composition frame chart of the embodiment of the invention;

Fig. 9 b is the composition frame chart of a kind of execution mode of device of Fig. 9 a illustrated embodiment;

Fig. 9 c is the composition frame chart of another execution mode of device of Fig. 9 a illustrated embodiment;

Fig. 9 d is the composition frame chart of another execution mode of device of Fig. 9 a illustrated embodiment;

Fig. 9 e is the composition frame chart of another execution mode of device of Fig. 9 a illustrated embodiment;

Fig. 9 f is the composition frame chart of another execution mode of device of Fig. 9 a illustrated embodiment;

Fig. 9 g is the composition frame chart of another execution mode of device of Fig. 9 a illustrated embodiment;

Fig. 9 h is the composition frame chart of another execution mode of device of Fig. 9 a illustrated embodiment.

Embodiment

For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with embodiment and accompanying drawing, the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.

The embodiment of the invention provides a kind of feedback mapping method of many antennas, below in conjunction with accompanying drawing present embodiment is elaborated.

Fig. 1 is the method flow diagram of present embodiment, please refer to Fig. 1, and the method for present embodiment is for terminal is fed back by the ascending packet data that many code words and multilayer send, and the method for present embodiment comprises:

101: the base station sends the assignment message of ascending packet data to terminal;

In the present embodiment, assignment message has comprised cyclic shift Cyclic shift forDMRS (the Demodulation Reference Symbol of demodulation reference mark, demodulation reference mark) indication and resource location index RB assignment (Resource Block, Resource Block).Wherein, Cyclic shift for DMRS is used to indicate and realizes that code word is to the channel estimating of layer mapping multi-layer data afterwards, because multilayer need be carried out independently channel estimating, so what layers are arranged, just need carry out the different channel estimating of how many times, different channel estimating is embodied in identical basic sequence, on the different cyclic shifts.Consider the up characteristic that has two time domains and time domain to repeat of LTE, thus if four layers are arranged, need four different cyclicshift originally, because the time domain repetition, so only need two different cyclic shift to get final product; RB assignment is used to indicate the shared running time-frequency resource of corresponding ascending packet data.

In the present embodiment, assignment message can be represented by PDCCH format 0, also can represent by DCI format 0, present embodiment not with this as restriction.

102: the base station receives the ascending packet data that described terminal sends by two-way code word at least and multilayer according to described assignment message;

Wherein, terminal can be selected the send mode of its ascending packet data and send the position according to the assignment message that the base station issues.

103: the base station is according to the cyclic shift indication of the demodulation reference mark in the described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation, according to the resource location index in the described assignment message, determine to participate in the minimum resources index value of position calculation of the downstream feedback channel of described ascending packet data, again according to the value of described definite demodulation reference mark and the position that described definite minimum resources index value is determined the downstream feedback channel of described ascending packet data;

Wherein, the position of downstream feedback channel in feedback channel PHICH can be calculated by following formula and be obtained:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}---\left(1\right)$

Wherein, formula (1) be used for to calculate which group that this downstream feedback channel is positioned at feedback channel PHICH, formula (2) be used for calculating this downstream feedback channel be positioned at described group which.In above-mentioned formula, parameter I _{PRB_RA} ^Lowest_indexBeing to obtain according to the resource location index in the assignment message that sends to terminal, being used to refer to assigned resource, also is the index of the minimum RB (resource block, Resource Block) of ascending packet data; Parameter n _DMRSBe to obtain according to the cyclic shift that sends to the demodulation reference mark in the assignment message of terminal, wherein, the cyclic shift of demodulation reference mark is the threshold value of 3bits, n _DMRSBe used to refer to 8 kinds of different values of the cyclic shift of demodulation reference mark, its concrete indexical relation as shown in Table 1; Parameter N _SF ^PHICH, N _PHICH ^Group, I _PHICHBe the pre-configured numerical value of system, its implication is same as the prior art, does not repeat them here.

The cyclic shift of the demodulation reference mark in the assignment message (Cyclic Shift for DMRS Field in DCI format 0)	Value (the n of demodulation reference mark DMRS)
		000	0
001	1
		010	2
011	3
		100	4
101	5
		110	6
111	7

Table one

In the present embodiment, minimum resources index value I is determined according to the resource location index in the described assignment message in the base station _{PRB_RA} ^Lowest_index, indicate the value n that determines demodulation reference mark according to the cyclic shift of the demodulation reference mark in this assignment message again _DMRS, and then coupling system preset parameters N _SF ^PHICH, N _PHICH ^Group, I _PHICH, can obtain the position of the downstream feedback channel of this ascending packet data by above-mentioned formula (1), (2).

In the present embodiment, because ascending packet data sends by many code words multilayer, therefore, more than one of the cyclic shift possibility of the demodulation reference mark of this ascending packet data, therefore, present embodiment also will be in conjunction with the cyclic shift indication of the demodulation reference mark of the ascending packet data that comprises in this assignment message, in order to determine n when determining the downstream feedback channel of this ascending packet data _DMRS, and then obtain the position of the downstream feedback channel of this ascending packet data.

In the present embodiment, cyclic shift indication according to the demodulation reference mark in the described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation, can realize by different ways, below with reference to different embodiment this is illustrated.

104: the accepting state of described ascending packet data is fed back in the base station to described terminal by described downstream feedback channel.

In the present embodiment, determined the downstream feedback channel of the ascending packet data of many code words according to step 103, the reception condition that is about to this ascending packet data by described definite downstream feedback channel feedback to terminal.

The feedback mapping method of many antennas of present embodiment sends the situation of ascending packet data by many code words and multilayer at terminal, by the downstream feedback channel of determining described ascending packet data according to cyclic shift indication and the resource location index of the demodulation reference mark in the assignment message that is issued to terminal, and feed back accepting state by downstream feedback channel that this is determined to terminal, solved the feedback mapping problems of ascending multi-code word multilayer.

In many antenna feedback mapping methods below in conjunction with the embodiment of the invention of Fig. 2-Fig. 6, the base station determines that according to cyclic shift indication and the resource location index of the demodulation reference mark in the assignment message that is issued to terminal the different execution modes of the downstream feedback channel of described ascending packet data describe respectively.

In the present embodiment, suppose base station support ACK bundling (binding of feedback states), and comprise the cyclic shift indication of a plurality of demodulation reference mark in the assignment message of ascending packet data.

In the present embodiment, the mapping table of the cyclic shift of existing 3bit (cyclic shift) does not change, suppose that ascending packet data sends by 24 layer of code word (layer), therefore, because considering needs 4 different cyclic shift to carry out the channel estimating of 4 layer, consider the time domain repeat property, existing LTE uplink pilot sequence takies 2 time-domain symbol, so can adopt the DMRS of 2 different 3bit, for example, DMRS1 and DMRS2 indicate 4 different cyclicshift.Because the ACK binding is supported in the base station, therefore, present embodiment is to come corresponding single downstream feedback channel (ACK) by 2 different 3bitDMRS threshold values (DMRS1, DMRS2) again.

Fig. 2 is in the present embodiment, and the method flow diagram of first kind of execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 2, and this method comprises:

201: the cyclic shift indication of one of them demodulation reference mark in the described assignment message is selected according to the appointed information of the cyclic shift indication of the demodulation reference mark that is used for the ACK binding that increases in the described assignment message in the base station;

In the present embodiment, revised the message format of the assignment message (PDCCH format 0) that is issued to terminal, hereinafter to be referred as assignment message, indicating use DMRS 1 by the 1bit conduct of increase for the appointed information of the cyclic shift indication of the demodulation reference mark of ACK binding still is the position that DMRS2 calculates ACK, it also is the position of downstream feedback channel, PDCCH format 0 form of present embodiment is shown in following table two, from following table as can be seen, Format 0B is the assignment message format at the Uplink MIMO design.Wherein " Cyclic shift forDMRS " must indicate by 6bit, i.e. 2 3bits under the prerequisite that does not change existing mapping table.At this moment, " the DMRS used forPHICH mapping " threshold value that can increase 1bit newly is indicated the position of using which DMRS (DMRS1 or DMRS2) calculating downstream feedback channel.

Table two

202: the value of the demodulation reference mark that the base station is corresponding with the cyclic shift indication of the demodulation reference mark selected is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data, the cyclic shift of the demodulation reference mark that utilization is selected is indicated the value of corresponding demodulation reference mark and the minimum resources index value of determining according to the resource location index of assignment message value, determines the position of the downstream feedback channel of described ascending packet data.

In the present embodiment, because the ACK binding is supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the position of a downstream feedback channel only need be determined in the base station, therefore, the cyclic shift indication of a plurality of demodulation reference mark that comprise in the assignment message for present embodiment, the base station is according to the method for present embodiment, select one of them, utilize the value of its corresponding demodulation reference mark and the minimum resources index value of determining according to the resource location index of this assignment message, again in conjunction with other information in this assignment message, the position of calculating the downstream feedback channel that obtains this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station only needs to get final product by increase bit information in assignment message adopts the cyclic shift indication of the demodulation reference mark of appointment to participate in the position of downstream feedback channel with indication calculating when determining the downstream feedback channel of this ascending packet data.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is supported in the base station, therefore, by in assignment message, increasing the indication information of bit, indicate the cyclic shift indication of selecting which demodulation reference mark to participate in the calculating of downstream feedback channel, easily solved ascending multi-code word multilayer by this simple mode and supported the feedback mapping problems that ACK binds.

Fig. 3 is in the present embodiment, and the method flow diagram of second kind of execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 3, and this method comprises:

301: the cyclic shift indication of one of them demodulation reference mark in the described assignment message is selected according to the appointed information of the cyclic shift indication of pre-configured demodulation reference mark in the base station;

In the present embodiment, the pre-configured system default configuration that comprises described base station, perhaps Radio Resource control (RRC, Radio Resource Control) message arrangement, present embodiment not with this as restriction.

For example, in the system default configuration, comprise following description:

n _DMRSBe mapped to the cyclic shift (n of the demodulation reference mark in the corresponding assignment message of the ascending packet data of receiving _DMRSIs mapped from the cyclic shift for DMRS field (according toTable 9.1.2-2) in the most recent DCI format 0[4] for the transport blockassociated with the corresponding PUSCH transmission.).

Method according to present embodiment, be revised as foregoing description:

n _DMRSBe mapped to the cyclic shift (n of first or second demodulation reference mark in the corresponding assignment message of the ascending packet data of receiving _DMRSIs mapped from the (first or second) cyclicshift for DMRS field (according to Table 9.1.2-2) in the most recent DCI format 0[4] for the transport block associated with the corresponding PUS CHtransmission.).

So, namely finished pre-configured to the appointed information of the cyclic shift of demodulation reference mark indication.Above-mentionedly just illustrate, present embodiment not with this as restriction.

302: the value of the demodulation reference mark that the base station is corresponding with the cyclic shift indication of the demodulation reference mark selected, value as the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data, the cyclic shift of the demodulation reference mark that utilization is selected is indicated the value of corresponding demodulation reference mark and the minimum resources index value of determining according to the resource location index of assignment message, determines the position of the downstream feedback channel of described ascending packet data.

In the present embodiment, because the ACK binding is supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the position of a downstream feedback channel only need be determined in the base station, therefore, the cyclic shift indication of a plurality of demodulation reference mark that comprise in the assignment message for present embodiment, the base station is according to the method for present embodiment, select one of them, utilize the value of its corresponding demodulation reference mark and the minimum resources index value of determining according to the resource location index of this assignment message, again in conjunction with other information in this assignment message, the position of calculating the downstream feedback channel that obtains this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station only needs to indicate the calculating of the position that participates in the downstream feedback channel to get final product by the cyclic shift of which demodulation reference mark in pre-configured definite employing assignment message when determining the downstream feedback channel of this ascending packet data.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is supported in the base station, therefore, by determined specifically to use the cyclic shift of which demodulation reference mark to indicate the calculating that participates in the downstream feedback channel by the description of standard language, easily solved the feedback mapping problems of ascending multi-code word multilayer by this simple mode.

Fig. 4 is in the present embodiment, and the method flow diagram of the third execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 4, and this method comprises:

401: cascade is carried out, the value after the acquisition cascade with the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark in the assignment message in the base station;

In the present embodiment, the value after the cascade can be bit value, also can be decimal system threshold value, present embodiment not with this as restriction.

In the present embodiment, because the cyclic shift threshold value of corresponding 3 bits of each demodulation reference mark, therefore, when ascending packet data comprises the cyclic shift indication of two demodulation reference mark, method according to present embodiment, can be with the corresponding bit cascade of cyclic shift indication of these two demodulation reference mark, obtain the threshold value of 6 bits, the threshold value of 6 bits after this cascade is done the cyclic shift indication of as a whole demodulation reference mark, again in conjunction with the cyclic shift indication of the demodulation reference mark of 6 default bits and the value n of demodulation reference mark _DMRSCorresponding relation, utilize corresponding n _DMRSParticipate in the calculating of downstream feedback channel position.

In the present embodiment, the value n of the indication of the cyclic shift of the demodulation reference mark of Yu She 6 bits and demodulation reference mark _DMRSCorresponding relation can be by representing as following table three:

Cyclic shift indication (6 bit) (Cyclic Shift for DMRS Field in DCI format 0 (6bits)) of demodulation reference mark in the assignment message	Value (the n of demodulation reference mark DMRS)	Cyclic shift indication (6 bit) (Cyclic Shift for DMRS Field in DCI format 0 (6bits)) of demodulation reference mark in the assignment message	Value (the n of demodulation reference mark DMRS)
				000000	0	100000	32
000001	1	100001	33
				000010	2	100010	34
000011	3	100011	35
				000100	4	100100	36
000101	5	100101	37
				000110	6	100110	38
000111	7	100111	39
				001000	8	101000	40
001001	9	101001	41
				001010	10	101010	42
001011	11	101011	43
				001100	12	101100	44
001101	13	101101	45
				001110	14	101110	46
001111	15	101111	47
				010000	16	110000	48
010001	17	110001	49
				010010	18	110010	50
010011	19	110011	51
				010100	20	110100	52
010101	21	110101	53
				010110	22	110110	54
010111	23	110111	55
				011000	24	111000	56
011001	25	111001	57
				011010	26	111010	58
011011	27	111011	59
				011100	28	111100	60
011101	29	111101	61
				011110	30	111110	62
011111	31	111111	63

Table three

In the present embodiment, the corresponding n of cascade of the cyclic shift of the demodulation reference mark of 6 bits shown in the table three _DMRSValue just illustrates, and the table of 6bit mapping can provide by different orders and different corresponding relations, present embodiment not with this as restriction.Wherein, because the different cyclic shift of the certain use of different layer, DMRS1 can not equal DMRS2, therefore, " 000000 " in the table three, " 001001 ", " 010010 ", " 011011 ", " 100100 ", ' 101101 ", " 110110 ", " 111111 " can not be used.

402: the value of the demodulation reference mark of the value correspondence of base station after with described cascade is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data, utilize the value of demodulation reference mark of the value correspondence after the described cascade and the minimum resources index value of determining according to the resource location index of assignment message, determine the position of the downstream feedback channel of described ascending packet data.

In the present embodiment, because the ACK binding is supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the position of a downstream feedback channel only need be determined in the base station, therefore, the cyclic shift indication of a plurality of demodulation reference mark that comprise for the assignment message of present embodiment, the base station is according to the method for present embodiment, the value of the demodulation reference mark of the value correspondence after the bit cascade that the cyclic shift indication of these a plurality of demodulation reference mark is corresponding is as the value of the demodulation reference mark that participates in calculating, again in conjunction with other information in this assignment message, determine the position of the downstream feedback channel of this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station is when the position of the downstream feedback channel of determining this ascending packet data, only need utilize the value n of the demodulation reference mark of the value correspondence after the cyclic shift indication cascade of all demodulation reference mark _DMRSThe calculating that participates in the position of downstream feedback channel gets final product.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is supported in the base station, therefore, the value of the demodulation reference mark by the value correspondence after the cascade of the corresponding bit of the cyclic shift indication of the demodulation reference mark in the assignment message that uses ascending packet data participates in the calculating of downstream feedback channel as the value of the demodulation reference mark of selecting, and has easily solved the feedback mapping problems of ascending multi-code word multilayer by this simple mode.

Fig. 5 is in the present embodiment, and the method flow diagram of the 4th kind of execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 5, and this method comprises:

501: cascade is carried out with the corresponding bit of the cyclic shift of a plurality of demodulation reference mark of described assignment message indication in the base station, obtains the value after the cascade;

In the present embodiment, the value after the cascade can be bit value, also can be decimal system threshold value, present embodiment not with this as restriction.

502: the base station is mapped as the value after the described cascade the corresponding value of cyclic shift indication of a demodulation reference mark of a correspondence according to predefined mapping function;

In the present embodiment, the value after the mapping can be bit value, also can be decimal system threshold value, present embodiment not with this as restriction.And the value after shining upon preceding value and shining upon is identical type, and for example, if the value before the mapping is bit value, the value after shining upon so still is bit value; If the value before the mapping is metric threshold value, the value after the mapping still is metric threshold value so.

Present embodiment still is designated as example with the cyclic shift of two demodulation reference mark, because the cyclic shift of each demodulation reference mark is indicated the threshold value of corresponding 3 bits, therefore, after the bit cascade of the cyclic shift indication correspondence of these two demodulation reference mark, obtain the threshold value of 6 bits, method according to present embodiment, can adopt predefined mapping function, be the threshold value of a 3bite with the threshold map of 6 bits after this cascade, again in conjunction with the cyclic shift indication of the demodulation reference mark of 3 bits and the value n of demodulation reference mark _DMRSCorresponding relation, utilize the value n of demodulation reference mark of the threshold value correspondence of 3 bits after this mapping _DMRSParticipate in the calculating of downstream feedback channel position.

Wherein, mapping function has a lot, for example, f (DMRS1, DMRS2)=DMRS1; Or f (DMRS1, DMRS2)=DMRS2; Or f (DMRS1, DMRS2)=(DMRS1+DMRS2) %8; Or f (DMRS1, DMRS2)=(DMRS1+DMRS2)/8 etc., present embodiment not with this as restriction.

Method according to present embodiment, terminal and base station all need to preserve above-mentioned predefined mapping function, when the upstream data of terminal correspondence is received in the base station, depend on the cyclic shift indication cascade of the demodulation reference mark in the assignment message, and the mapping function table that depends on preservation obtains unique threshold value, the table look-up value of determining corresponding demodulation reference mark and the calculating that participates in the feedback channel position.Terminal depends on the position that identical mapping method is determined corresponding downstream feedback channel.

503: the value of the demodulation reference mark of the value correspondence of base station after with described mapping is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data, utilizes the value of demodulation reference mark of the value correspondence after the described mapping and the position of determining the downstream feedback channel of described ascending packet data according to the minimum resources index value that the resource location index of assignment message is determined.

In the present embodiment, because the ACK binding is supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the position of a downstream feedback channel only need be determined in the base station, therefore, the cyclic shift indication of a plurality of demodulation reference mark that comprise in the assignment message for present embodiment, the base station is according to the method for present embodiment, by a predefined mapping function, value after the bit cascade that the cyclic shift indication of these a plurality of demodulation reference mark is corresponding is mapped as the corresponding value of cyclic shift indication of a demodulation reference mark of a correspondence, again in conjunction with other information in this assignment message, determine the position of the downstream feedback channel of this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station is when the position of the downstream feedback channel of determining this ascending packet data, only need utilize value after the cyclic shift indication cascade of all demodulation reference mark to be mapped as the corresponding value n of cyclic shift indication of a demodulation reference mark of a correspondence _DMRSThe calculating that participates in the position of downstream feedback channel gets final product.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is supported in the base station, therefore, the value of the demodulation reference mark of the value correspondence after the cascade mapping of the cyclic shift indication by the demodulation reference mark in the assignment message that uses ascending packet data participates in the calculating of downstream feedback channel, has easily solved the feedback mapping problems of ascending multi-code word multilayer by this simple mode.

Fig. 6 is in the present embodiment, and the method flow diagram of the 5th kind of execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 6, and this method comprises:

601: cascade is carried out with the corresponding bit of the cyclic shift of a plurality of demodulation reference mark in assignment message indication in the base station, obtains the value after the cascade;

In the present embodiment, the value after the cascade can be bit value, also can be decimal system threshold value, present embodiment not with this as restriction.

602: the base station is mapped as the value after the described cascade the corresponding value of cyclic shift indication of two respectively corresponding demodulation reference mark according to predefined mapping function;

In the present embodiment, the value after the mapping can be bit value, also can be decimal system threshold value, present embodiment not with this as restriction.And the value after shining upon preceding value and shining upon is identical type, and for example, if the value before the mapping is bit value, the value after shining upon so still is bit value; If the value before the mapping is metric threshold value, the value after the mapping still is metric threshold value so.

In the present embodiment, owing to comprise for the calculating of the position of downstream feedback channel and to calculate this downstream feedback channel in which group of PHICH channel, and described group which, therefore, present embodiment can be according to predefined mapping function, the cascade of the bit that the cyclic shift indication of the demodulation reference mark in the assignment message of described ascending packet data is corresponding is mapped as two values, carrying out the calculating of above-mentioned two formula respectively, and then obtain the position of the downstream feedback channel of this ascending packet data.

For example, DMRS1 and DMRS2 are respectively two demodulation reference mark of ascending packet data, according to the method for present embodiment, the cascade of DMRS1 and DMRS2 can be mapped as two threshold values, i.e. f (DMRS1, DMRS2)=(DMRS1a, DMRS2a), wherein, DMRS1a and DMRS2a are respectively the threshold value after DMRS1 and the DMRS2 cascade mapping, these two threshold values are participated in formula (1) and formula (2) respectively, that is:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}1a})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$

So, namely obtained the position of the downstream feedback channel of this ascending packet data.

In the present embodiment, with the corresponding bit of the cyclic shift of demodulation reference mark indication be mapped as two respectively the mapping function of the threshold value of the corresponding bit number of the cyclic shift indication of a corresponding demodulation reference mark also have a lot, for example, f (DMRS1, DMRS2)=(DMRS1, DMRS2); Or f (DMRS1, DMRS2)=((DMRS1+DMRS2) %8, (DMRS1+DMRS2)/8), present embodiment not with this as restriction.

Method according to present embodiment, terminal and base station also all need to preserve above-mentioned predefined mapping function, when receiving the upstream data of terminal correspondence with convenient base station, depend on the cascade of the cyclic shift indication of the demodulation reference mark in the assignment message, and the mapping function table that depends on preservation obtains the threshold value of the cyclic shift indication of two demodulation reference mark, the table look-up value of determining demodulation reference mark and the calculating that participates in the feedback channel position respectively.Terminal depends on the position that identical mapping method is determined corresponding downstream feedback channel.

603: the value of one of them corresponding demodulation reference mark of two values of base station after with described mapping is as the value of the demodulation reference mark of the calculating of the group of the downstream feedback channel that participates in described ascending packet data, utilizes the value of one of them corresponding demodulation reference mark of two values after the mapping and the group of determining the downstream feedback channel of described ascending packet data according to the minimum resources index value that the resource location index of assignment message is determined;

604: the value of the demodulation reference mark of the another one correspondence of two values of base station after with described mapping is as the value of the demodulation reference mark of the calculating of position in described group of the downstream feedback channel that participates in described ascending packet data, utilizes the value of demodulation reference mark of another one correspondence of two values after the mapping and the position of downstream feedback channel in described group of determining described ascending packet data according to the minimum resources index value that the resource location index of assignment message is determined.

In the present embodiment, because the ACK binding is supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the position of a downstream feedback channel only need be determined in the base station, therefore, the a plurality of demodulation reference mark that comprise in the assignment message for present embodiment, the base station is according to the method for present embodiment, by a predefined mapping function, value after the bit cascade that the cyclic shift indication of these a plurality of demodulation reference mark is corresponding is mapped as two values, the value of the demodulation reference mark that two values after the mapping are corresponding participate in the group of downstream feedback channel respectively and organize in the position calculation of position, again in conjunction with other information in this assignment message, determine the position of the downstream feedback channel of this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station is when the position of the downstream feedback channel of determining this ascending packet data, only need utilize the value after the corresponding bit cascade of the cyclic shift indication of all demodulation reference mark to be mapped as two values, with the value n of corresponding demodulation reference mark respectively of two values after this mapping _DMRSThe position calculation of position gets final product in the group of the position of participation downstream feedback channel and the group.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is supported in the base station, therefore, participate in the calculating of downstream feedback channel by the value of the corresponding demodulation reference mark of two values after the cascade mapping of the corresponding bit of the cyclic shift indication of the demodulation reference mark in the assignment message that uses ascending packet data, easily solved the feedback mapping problems of ascending multi-code word multilayer by this simple mode.

In many antenna feedback mapping methods below in conjunction with the embodiment of the invention of Fig. 7 one Fig. 8, the base station is according to cyclic shift indication and the resource location index of the demodulation reference mark in the assignment message that is issued to terminal, the different execution modes of determining the downstream feedback channel of described ascending packet data describe respectively, in the present embodiment, suppose that the base station do not support ACK binding, and only comprise the cyclic shift indication of a demodulation reference mark in the assignment message of ascending packet data.

In the present embodiment, the mapping table of single threshold value and cyclic shift and DMRS in the change existing protocol.Namely can distinguish a plurality of different cyclic shift (having what layer what cyclic shift are just arranged) by single threshold value, and tell the feedback that a plurality of different DMRS are used for a plurality of code words by single threshold zone.

Fig. 7 is in the present embodiment, and the method flow diagram of the 6th kind of execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 7, and this method comprises:

701: the base station is according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a plurality of demodulation reference mark, according to the cyclic shift indication of the demodulation reference mark in the described assignment message, select the value of corresponding a plurality of demodulation reference mark;

In the present embodiment, can make amendment to cyclic shift mapped function relation table, for example can be revised as shown in following table four:

Cyclic shift in the assignment message (Cyclic Shift Field in DCIformat 0[3])	Value (the n that is used for the demodulation reference mark of channel estimating DMRS (2))
		000	0，1
001	2，3
		010	4，5
011	6，7
		100	8，9
101	10，11
		110	0，3
111	6，8

Table four

In the present embodiment, show to make that by revising cyclic shift indicated 3bit threshold value is come corresponding two different cyclic shift values among the assignment message PDCCH format 0, carry out channel estimating thereby can utilize existing structure to be extended to 4 different cyclic shift.

In the present embodiment, also to make amendment to the mapping relations table of DMRS, for example can be revised as shown in following table five:

The cyclic shift indication (Cyclic Shift for DMRS Field in DCI format 0) of the demodulation reference mark in the assignment message	Value (the n of demodulation reference mark DMRS)
		000	0，7
001	1，4
		010	2，5
011	3，6
		100	4，10
101	5，12
		110	6，14
111	7，13

Table five

In the present embodiment, revising the DMRS table is to come corresponding two different n by unique 3bit threshold value _DMRSThereby, do not support when the base station under the prerequisite of ACK binding, by different nD _MRSCalculate the position of different downstream feedback channels, make different downstream feedback channels come corresponding specific code word.

For example: n is determined in the cyclic shift indication according to demodulation reference mark _DMRS=(n _DMRS1, n _DMRS2), then according to the method for present embodiment, be to calculate by following formula (3) at the ACK position of first code word, be to calculate by following formula (4) at the ACK position of second code word:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}1})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}---\left(3\right)$

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}2})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}---\left(4\right)$

702: the base station is according to the value of described a plurality of demodulation reference mark of selecting, the value of each demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation is utilized the value of each demodulation reference mark of selecting and the position of determining each downstream feedback channel of described ascending packet data according to the minimum resources index value that the resource location index of assignment message is determined.

After selecting the value of a plurality of demodulation reference mark of cyclic shift indication of the demodulation reference mark in the corresponding assignment message, can calculate the downstream feedback channel of each road code word of correspondence according to aforementioned formula (1) and formula (2) respectively.

In the present embodiment, because the ACK binding is not supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the base station need be determined the position of a downstream feedback channel at each road code word, therefore, method according to present embodiment, the base station is according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a plurality of demodulation reference mark, cyclic shift indication according to the demodulation reference mark in the described assignment message, select the value of corresponding a plurality of demodulation reference mark, again in conjunction with other information in this assignment message, determine the position of a plurality of downstream feedback channels of this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station is when the position of the downstream feedback channel of determining this ascending packet data, only need be according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a plurality of demodulation reference mark, according to the cyclic shift indication of the demodulation reference mark in the described assignment message, select the value n of corresponding a plurality of demodulation reference mark _DMRSThe calculating that participates in the position of downstream feedback channel gets final product.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is not supported in the base station, therefore, cyclic shift indication by using pre-configured demodulation reference mark and the basis of the corresponding relation of the value of a plurality of demodulation reference mark as the value of selecting demodulation reference mark, to participate in the calculating of downstream feedback channel, easily solved the feedback mapping problems of ascending multi-code word multilayer by this simple mode.

Fig. 8 is in the present embodiment, and the method flow diagram of the 7th kind of execution mode of the downstream feedback channel of ascending packet data is determined in the base station, please refer to Fig. 8, and this method comprises:

801: the base station is according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a demodulation reference mark, and the mapping function of the value of the value of a predefined demodulation reference mark and a plurality of demodulation reference mark, the value of the demodulation reference mark that the cyclic shift indication of the demodulation reference mark in the described assignment message is corresponding is mapped as the value of a plurality of demodulation reference mark;

Present embodiment has been revised the mapping mechanism of its cyclic shift of cyclic shift table maintenance, but do not revise the DMRS table, utilize the mapping function of the value of predefined value to two demodulation reference mark from a demodulation reference mark then, obtain the value of each demodulation reference mark of corresponding each road code word.

Wherein, amended cyclic shift table can be as shown in the following Table VI, but present embodiment not with this as restriction:

The cyclic shift indication (Cyclic Shift for DMRS Field in DCI format 0) of the demodulation reference mark in the assignment message	Value (the n of demodulation reference mark DMRS)
		000	0
001	1
		010	2
011	3
		100	4
101	5
		110	6
111	7

Table six

Method according to present embodiment, by a predefined mapping function value of a demodulation reference mark is mapped as two, for example by mapping function f (DMRS)=(DMRS1, DMRS2), wherein DMRS is the threshold value indication of 3bits, and DMRS1 and DMRS2 are the threshold value indications of 3bits, but DMRS1 is not equal to DMRS2, as, use mapping function f (DMRS)=(DMRS, DMRS+1), the value of two demodulation reference mark that the cyclic shift that has namely obtained a corresponding demodulation reference mark like this is indicated, also namely, above-mentioned table six can implicit representation be as following table seven:

The cyclic shift indication (Cyclic Shift for DMRS Field in DCI format 0) of the demodulation reference mark in the assignment message	Value (the n of demodulation reference mark DMRS)
		000	0，1
001	1，2
		010	2，3
011	3，4
		100	4，5
101	5，6
		110	6，7
111	7，8

Table seven

So, can calculate by DMRS1 at the position of the downstream feedback channel of code word 1, can calculate by DMRS2 at the position of the downstream feedback channel of code word 2.

In the present embodiment, revised the mapping table of cyclic shift by step 801, can determine the value of corresponding a plurality of demodulation reference mark according to the indication of the cyclic shift of the demodulation reference mark in the assignment message that is issued to terminal, in order to participate in the calculating of downstream feedback channel of the multichannel code word of this ascending packet data.

802: the value of a plurality of demodulation reference mark of base station after according to described mapping, the value of each demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation is utilized the value of each demodulation reference mark of selecting and the position of determining each downstream feedback channel of described ascending packet data according to the minimum resources index value that the resource location index of described assignment message is determined.

After selecting the value of a plurality of demodulation reference mark of cyclic shift indication of the demodulation reference mark in the corresponding assignment message, can calculate the downstream feedback channel of each road code word of correspondence according to aforementioned formula (1) and formula (2) respectively.

In the present embodiment, because the ACK binding is not supported in the base station, therefore, for the ascending packet data of terminal by many code words and multilayer transmission, the base station need be determined the position of a downstream feedback channel at each code word, therefore, method according to present embodiment, the base station is according to the value of the corresponding relation of the indication of the cyclic shift of pre-configured demodulation reference mark and the value of demodulation reference mark and the predefined demodulation reference mark mapping function to the value of a plurality of demodulation reference mark, cyclic shift indication according to the demodulation reference mark in the described assignment message, select the value of corresponding a plurality of demodulation reference mark, again in conjunction with other information in this assignment message, determine the position of a plurality of downstream feedback channels of this ascending packet data according to aforementioned formula (1) and formula (2).

Above-described embodiment is to be that example describes with 4 layers of 2 code words, but present embodiment not with this as restriction, terminal also can be carried out the transmission of ascending packet data by a plurality of code words and multilayer, and the base station is when the position of the downstream feedback channel of determining this ascending packet data, only need be according to the value of the corresponding relation of the cyclic shift indication of pre-configured demodulation reference mark and the value of demodulation reference mark and the default demodulation reference mark mapping function to the value of a plurality of demodulation reference mark, according to the cyclic shift indication of the demodulation reference mark in the described assignment message, select the value n of corresponding a plurality of demodulation reference mark _DMRSThe calculating that participates in the position of downstream feedback channel gets final product.

The method of present embodiment is when the downstream feedback channel of the ascending packet data of determining to send by many code words multilayer, because the ACK binding is not supported in the base station, therefore, the value of the cyclic shift indication by using pre-configured demodulation reference mark and the corresponding relation of the value of demodulation reference mark and a predefined demodulation reference mark is to the mapping function of the value of a plurality of demodulation reference mark, basis as the value of selecting demodulation reference mark, to participate in the calculating of downstream feedback channel, easily solved the feedback mapping problems of ascending multi-code word multilayer by this simple mode.

The embodiment of the invention also provides a kind of many antenna feedback mapping devices, below in conjunction with accompanying drawing this enforcement is elaborated.

Fig. 9 a is the composition frame chart of many antenna feedback mapping devices of present embodiment, please refer to Fig. 9 a, and this device comprises:

Transmitting element 91 is used for to the assignment message of terminal transmission ascending packet data;

Receiving element 92 be used for to receive the ascending packet data that described terminal sends by two-way code word and multilayer at least according to described assignment message;

Determining unit 93, be used for the cyclic shift indication according to the demodulation reference mark of described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation, according to the resource location index in the described assignment message, determine to participate in the minimum resources index value of position calculation of the downstream feedback channel of described ascending packet data, determine the position of the downstream feedback channel of described ascending packet data according to the value of the demodulation reference mark of determining and the minimum resources index value determined;

Feedback unit 94 is for accepting state from described downstream feedback channel to described terminal that feed back described ascending packet data by.

According to an execution mode of present embodiment, when described device is supported the ACK binding, and described assignment message please refer to Fig. 9 b when comprising the cyclic shift indication of a plurality of demodulation reference mark, and determining unit 93 comprises:

Select module 931, for the appointed information that the cyclic shift of the demodulation reference mark that increases according to described assignment message is indicated, select the cyclic shift indication of one of them demodulation reference mark in the described assignment message;

Determination module 932 is used for according to the value of the corresponding demodulation reference mark of the cyclic shift indication of the demodulation reference mark of selecting and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

According to an execution mode of present embodiment, when described device is supported the ACK binding, and described assignment message please refer to Fig. 9 c when comprising the cyclic shift indication of a plurality of demodulation reference mark, and determining unit 93 comprises:

Select module 933, be used for the appointed information according to the cyclic shift indication of pre-configured demodulation reference mark, select the cyclic shift indication of one of them demodulation reference mark in the described assignment message;

Determination module 934 is used for according to the value of the corresponding demodulation reference mark of the cyclic shift indication of the demodulation reference mark of selecting and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

According to an execution mode of present embodiment, when described device is supported the ACK binding, and described assignment message please refer to Fig. 9 d when comprising the cyclic shift indication of a plurality of demodulation reference mark, and determining unit 93 comprises:

Cascade module 935 is used for the corresponding bit of cyclic shift indication of the demodulation reference mark of described assignment message is carried out cascade, obtains the value after the cascade;

Determination module 936 is used for according to the value of the demodulation reference mark of the value correspondence after the described cascade and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

According to an execution mode of present embodiment, when described device is supported the ACK binding, and described assignment message please refer to Fig. 9 e when comprising the cyclic shift indication of a plurality of demodulation reference mark, and determining unit 93 comprises:

Cascade module 937 is used for the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message is carried out cascade, obtains the value after the cascade;

Mapping block 938 is used for according to predefined mapping function, the value after the described cascade is mapped as the corresponding value of cyclic shift indication of a demodulation reference mark of a correspondence;

Determination module 939 is used for according to the value of the demodulation reference mark of the value correspondence after the described mapping and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

According to an execution mode of present embodiment, when described device is supported the ACK binding, and described assignment message please refer to Fig. 9 f when comprising the cyclic shift indication of a plurality of demodulation reference mark, and determining unit 93 comprises:

Cascade module 9310 is used for the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message is carried out cascade, obtains the value after the cascade;

Mapping block 9311 is used for according to predefined mapping function, the value after the described cascade is mapped as the corresponding value of cyclic shift indication of two respectively corresponding demodulation reference mark;

First determination module 9312 is used for according to the value of one of them corresponding demodulation reference mark of described two values and the group that described minimum resources index value is determined the downstream feedback channel of described ascending packet data;

Second determination module 9313 is used for according to the value of the demodulation reference mark of the another one correspondence of described two values and downstream feedback channel that described minimum resources index value the is determined described ascending packet data position at described group.

According to an execution mode of present embodiment, when described device is not supported ACK binding, and described assignment message please refer to Fig. 9 g when comprising the cyclic shift indication of a demodulation reference mark, and determining unit 93 comprises:

Select module 9314, be used for according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a plurality of demodulation reference mark, according to the cyclic shift indication of the demodulation reference mark in the described assignment message, select the value of corresponding a plurality of demodulation reference mark;

Determination module 9315 is used for utilizing the value of each demodulation reference mark of selecting and the position that described minimum resources index value is determined each downstream feedback channel of described ascending packet data.

According to an execution mode of present embodiment, when described device is not supported ACK binding, and described assignment message please refer to Fig. 9 h when comprising the cyclic shift indication of a demodulation reference mark, and determining unit 93 comprises:

Mapping block 9316, be used for according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a demodulation reference mark, and the mapping function of the value of the value of a predefined demodulation reference mark and a plurality of demodulation reference mark, the value of the demodulation reference mark that the cyclic shift indication of the demodulation reference mark in the assignment message is corresponding is mapped as the value of a plurality of demodulation reference mark;

Determination module 9317 is used for utilizing the value of each demodulation reference mark after shining upon and the position that described minimum resources index value is determined each downstream feedback channel of described ascending packet data.

The many antennas feedback mapping devices of present embodiment can be applied to the base station, but present embodiment not with this as restriction.

Each component units of the device of present embodiment is respectively applied to realize each step of preceding method, owing in preceding method, each step is had been described in detail, so do not repeat them here.

By the device of present embodiment, can support ACK binding according to the base station, come to determine downstream feedback channel by the ascending packet data of many code words multilayer transmission by different ways, easily solved the feedback mapping problems of ascending multi-code word multilayer.

The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.

Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (19)

1. the feedback mapping method of antenna more than a kind is characterized in that, described method comprises:

The base station sends the assignment message of ascending packet data to terminal;

The base station receives the ascending packet data that described terminal sends by two-way code word at least and multilayer according to described assignment message;

The base station is according to the cyclic shift indication of the demodulation reference mark in the described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation, according to the resource location index in the described assignment message, the minimum resources index value of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation;

The position that the downstream feedback channel of described ascending packet data is determined according to value and definite minimum resources index value of the demodulation reference mark of determining in the base station;

The accepting state of described ascending packet data is fed back by having determined the described downstream feedback channel of position in the base station to described terminal.

2. method according to claim 1, it is characterized in that, if the ACK binding is supported in the base station, and described assignment message comprises the cyclic shift indication of a plurality of demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

The base station is according to the appointed information of the cyclic shift indication of the demodulation reference mark that increases in the described assignment message, select the cyclic shift indication of one of them demodulation reference mark in the described assignment message, the value of the demodulation reference mark that the indication of the cyclic shift of selected demodulation reference mark is corresponding is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data.

3. method according to claim 1, it is characterized in that, if the ACK binding is supported in the base station, and described assignment message comprises the cyclic shift indication of a plurality of demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

The base station is according to the appointed information of the cyclic shift indication of pre-configured demodulation reference mark, select the cyclic shift indication of one of them demodulation reference mark in the described assignment message, the value of the demodulation reference mark that the indication of the cyclic shift of selected demodulation reference mark is corresponding is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data.

4. method according to claim 3 is characterized in that, described pre-configured comprising: the system default configuration of described base station, perhaps radio resource control information configuration.

5. method according to claim 1, it is characterized in that, if the ACK binding is supported in the base station, and described assignment message comprises the cyclic shift indication of a plurality of demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

Cascade is carried out, the value after the acquisition cascade with the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message in the base station;

The value of the demodulation reference mark of the value correspondence of base station after with described cascade is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data.

6. method according to claim 1, it is characterized in that, if the ACK binding is supported in the base station, and described assignment message comprises the cyclic shift indication of a plurality of demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

Cascade is carried out, the value after the acquisition cascade with the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message in the base station;

The base station is mapped as the value after the described cascade the corresponding value of cyclic shift indication of a demodulation reference mark of a correspondence according to predefined mapping function;

The value of the demodulation reference mark of the value correspondence after the base station will be shone upon is as the value of the demodulation reference mark of the position calculation of the downstream feedback channel that participates in described ascending packet data.

7. method according to claim 1, it is characterized in that, if the ACK binding is supported in the base station, and described assignment message comprises the cyclic shift indication of a plurality of demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

Cascade is carried out, the value after the acquisition cascade with the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message in the base station;

The base station is mapped as the value after the described cascade the corresponding value of cyclic shift indication of two respectively corresponding demodulation reference mark according to predefined mapping function;

The value of one of them corresponding demodulation reference mark of two values after the base station will be shone upon is as the value of the demodulation reference mark of the calculating of the group of the downstream feedback channel that participates in described ascending packet data;

The value of the demodulation reference mark of the another one correspondence of two values after the base station will be shone upon is as the value of the demodulation reference mark of the calculating of position in described group of the downstream feedback channel that participates in described ascending packet data.

8. method according to claim 5 is characterized in that:

Value after the described cascade is bit value, or decimal system threshold value.

9. according to claim 6 or 7 described methods, it is characterized in that:

Value after the described cascade is bit value, or decimal system threshold value;

Value after the described mapping is bit value, or decimal system threshold value, and the value after the value before the mapping and the mapping is identical type.

10. method according to claim 1, it is characterized in that, if the ACK binding is not supported in the base station, and described assignment message comprises the cyclic shift indication of a demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

The base station according to the cyclic shift indication of the demodulation reference mark in the described assignment message, is selected the value of corresponding a plurality of demodulation reference mark according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a plurality of demodulation reference mark;

The base station is according to the value of described a plurality of demodulation reference mark of selecting, determines to participate in the value of each demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data.

11. method according to claim 1, it is characterized in that, if the ACK binding is not supported in the base station, and described assignment message comprises the cyclic shift indication of a demodulation reference mark, then the base station determine to participate in the value of demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data, comprising:

The base station is according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a demodulation reference mark, and the mapping function of the value of the value of a predefined demodulation reference mark and a plurality of demodulation reference mark, the value of the demodulation reference mark that the cyclic shift indication of the demodulation reference mark in the described assignment message is corresponding is mapped as the value of a plurality of demodulation reference mark;

The value of a plurality of demodulation reference mark of base station after according to described mapping determines to participate in the value of each demodulation reference mark of position calculation of the downstream feedback channel of described ascending packet data.

12. the feedback of antenna more than kind mapping device is characterized in that described device comprises:

Transmitting element is used for to the assignment message of terminal transmission ascending packet data;

Receiving element be used for to receive the ascending packet data that described terminal sends by two-way code word and multilayer at least according to described assignment message;

Determining unit is used for the cyclic shift indication according to the demodulation reference mark of described assignment message, the value of the demodulation reference mark of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation; According to the resource location index in the described assignment message, the minimum resources index value of the position calculation of the downstream feedback channel of the described ascending packet data of definite participation; Determine the position of the downstream feedback channel of described ascending packet data according to the value of the demodulation reference mark of determining and the minimum resources index value determined;

Feedback unit is used for having determined that by described determining unit the described downstream feedback channel of position feeds back the accepting state of described ascending packet data to described terminal.

13. device according to claim 12 is characterized in that, when described device is supported the ACK binding, and described assignment message is when comprising the cyclic shift indication of a plurality of demodulation reference mark, and described determining unit comprises:

Select module, for the appointed information that the cyclic shift of the demodulation reference mark that increases according to described assignment message is indicated, select the cyclic shift indication of one of them demodulation reference mark in the described assignment message;

Determination module is used for according to the value of the corresponding demodulation reference mark of the cyclic shift indication of the demodulation reference mark of selecting and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

14. device according to claim 12 is characterized in that, when described device is supported the ACK binding, and described assignment message is when comprising the cyclic shift indication of a plurality of demodulation reference mark, and described determining unit comprises:

Select module, be used for the appointed information according to the cyclic shift indication of pre-configured demodulation reference mark, select the cyclic shift indication of one of them demodulation reference mark in the described assignment message;

Determination module is used for according to the value of the corresponding demodulation reference mark of the cyclic shift indication of the demodulation reference mark of selecting and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

15. device according to claim 12 is characterized in that, when described device is supported the ACK binding, and described assignment message is when comprising the cyclic shift indication of a plurality of demodulation reference mark, and described determining unit comprises:

Cascade module is used for the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message is carried out cascade, obtains the value after the cascade;

Determination module is used for according to the value of the demodulation reference mark of the value correspondence after the described cascade and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

16. device according to claim 12 is characterized in that, when described device is supported the ACK binding, and described assignment message is when comprising the cyclic shift indication of a plurality of demodulation reference mark, and described determining unit comprises:

Cascade module is used for the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message is carried out cascade, obtains the value after the cascade;

Mapping block is used for according to predefined mapping function, the value after the described cascade is mapped as the corresponding value of cyclic shift indication of a demodulation reference mark of a correspondence;

Determination module is used for according to the value of the demodulation reference mark of the value correspondence after the described mapping and the position that described minimum resources index value is determined the downstream feedback channel of described ascending packet data.

17. device according to claim 12 is characterized in that, when described device is supported the ACK binding, and described assignment message is when comprising the cyclic shift indication of a plurality of demodulation reference mark, and described determining unit comprises:

Cascade module is used for the corresponding bit of cyclic shift indication of a plurality of demodulation reference mark of described assignment message is carried out cascade, obtains the value after the cascade;

Mapping block is used for according to predefined mapping function, the value after the described cascade is mapped as the corresponding value of cyclic shift indication of two respectively corresponding demodulation reference mark;

First determination module is used for according to the value of one of them the corresponding demodulation reference mark of two values after the mapping and the group that described minimum resources index value is determined the downstream feedback channel of described ascending packet data;

Second determination module is used for according to the value of the demodulation reference mark of the another one correspondence of two values after the mapping and downstream feedback channel that described minimum resources index value the is determined described ascending packet data position at described group.

18. device according to claim 12 is characterized in that, when described device is not supported ACK binding, and described assignment message is when comprising the cyclic shift indication of a demodulation reference mark, and described determining unit comprises:

Select module, be used for according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a plurality of demodulation reference mark, according to the cyclic shift indication of the demodulation reference mark in the described assignment message, select the value of corresponding a plurality of demodulation reference mark;

Determination module is used for utilizing the value of each demodulation reference mark of selecting and the position that described minimum resources index value is determined each downstream feedback channel of described ascending packet data.

19. device according to claim 12 is characterized in that, when described device is not supported ACK binding, and described assignment message is when comprising the cyclic shift indication of a demodulation reference mark, and described determining unit comprises:

Mapping block, be used for according to the cyclic shift indication of pre-configured demodulation reference mark and the corresponding relation of the value of a demodulation reference mark, and the mapping function of the value of the value of a predefined demodulation reference mark and a plurality of demodulation reference mark, the value of the demodulation reference mark that the cyclic shift indication of the demodulation reference mark in the described assignment message is corresponding is mapped as the value of a plurality of demodulation reference mark;

Determination module is used for utilizing the value of each demodulation reference mark after shining upon and the position that described minimum resources index value is determined each downstream feedback channel of described ascending packet data.

Images