CN102104461A

CN102104461A - Space merge configuration and response information feedback method, system and equipment

Info

Publication number: CN102104461A
Application number: CN201110074398XA
Authority: CN
Inventors: 高雪娟; 沈祖康; 林亚男
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2011-03-25
Filing date: 2011-03-25
Publication date: 2011-06-22
Anticipated expiration: 2031-03-25
Also published as: CN102104461B; WO2012130105A1

Abstract

The embodiment of the invention discloses a space merge configuration and response information feedback method, a space merge configuration and response information feedback system and space merge configuration and response information feedback equipment, relates to the technical field of wireless communication, and is used for flexibly configuring information whether to perform space merge on the response information of downlink carriers for a terminal. In the invention, a base station determines whether the terminal needs to perform space merge on the response information of the downlink carriers; and the base station transmits configuration information whether to perform space merge on the response information of the downlink carriers to the terminal according to a determined result. The base station can flexibly configure that whether the terminal performs space merge on the response information of the downlink carriers according to the need.

Description

The space merges configuration and response message feedback method, system and equipment

Technical field

The present invention relates to wireless communication field, relate in particular to a kind of space and merge configuration and response message feedback method, system and equipment.

Background technology

For long-term evolution multi-carrier system, for supporting that such as 100MHz, a kind of may be the frequency spectrum that directly distributes the 100M bandwidth, as shown in Figure 1 than the wideer system bandwidth of Long Term Evolution (LTE) system; A kind of may be to distribute to some spectrum aggregatings of existing system, gather into big bandwidth and supply with the long-term evolution multi-carrier system use, the up-downgoing carrier wave can asymmetricly dispose in the system at this moment, be that the user may take N 〉=1 carrier wave and carries out downlink transfer, M 〉=1 carrier wave carries out uplink, as shown in Figure 2.

Determine that at present long-term evolution upgrading (LTE-A) system can support 5 carrier waves to carry out polymerization at most, the terminal (UE) in a LTE-A time division duplex (TDD) system need be in acknowledgement/non-acknowledgement (ACK/NACK) information of corresponding a plurality of descending carriers of same sub-frame of uplink internal feedback and descending sub frame.For the TDD system, need carry out ACK/NACK at same sub-frame of uplink and believe that the descending sub frame number of feedback is defined as M, M is to different sub-frame of uplink and different uplink-downlink configuration value differences, as shown in table 1, the number of the k value of each sub-frame of uplink correspondence is UE need carry out the descending sub frame of ACK/NACK feedback in this sub-frame of uplink number.Whether UE will need the information (being ACK/NACK) that retransmits in the data on this descending sub frame of base station feedback on the sub-frame of uplink n after having finished demodulation to the data on the descending sub frame n-k, decoding.

Table 1

Adopt Physical Uplink Control Channel form 3 (PUCCH format 3) in the LTE-A system and have Physical Uplink Control Channel form 1b (PUCCH format 1b with channel selection) the multiplexing transmission ACK/NACK information that channel is selected.The maximum transmitted bit number of PUCCH format 3 is 20 bits, the maximum transmitted bit number of PUCCH format 1b with channel selection is 4 bits, when the ACK/NACK information bit of needs feedbacks during greater than the maximum transmitted bit of above-mentioned transmission plan, need carry out the space to the ACK/NACK information of the descending carrier correspondence that adopts many code words (i.e. 2 code words) transmission mode and merge, to reduce ACK/NACK transmission of Information bit number.

So-called space merges, and promptly the ACK/NACK information of a plurality of code words in the descending sub frame of the transmission mode descending carrier that is many code words is carried out logic add.ACK/NACK multiplexing transmission in LTE version 8 (Rel-8) system in many codeword transmission and M＞1 o'clock, is carried out the space to the ACK/NACK information acquiescence of many code words and is merged.

In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:

Because the ACK/NACK feedback scheme in the LTE-A system is supported different ACK/NACK number of bits of feedback transmission, if continue to use LTE Rel-8 multiplex mode, the ACK/NACK information of many code words correspondence of all M＞1 is carried out the space all the time to be merged, for the scheme of supporting big number of bits of feedback transmission, can cause number of retransmissions to increase, influence throughput of system.

Summary of the invention

The method and apparatus that the embodiment of the invention provides a kind of space to merge configuration is used to provide a kind of base station whether the response message of descending carrier to be carried out the scheme of the information that the space merges to the terminal flexible configuration.

A kind of space merges collocation method, and this method comprises:

The base station is to each descending carrier, need to determine whether terminal that the response message of this descending carrier is carried out the space and merges;

The base station is according to determining that the result carries out the configuration information that the space merges to the response message whether terminal issues descending carrier.

A kind of base station, this base station comprises:

Determining unit is used for each descending carrier, need to determine whether terminal that the response message of this descending carrier is carried out the space and merges;

Dispensing unit is used for according to determining that the result carries out the configuration information that the space merges to the response message whether terminal issues descending carrier.

Adopt this programme, whether base station flexible configuration terminal is as required carried out the space to the response message of descending carrier and is merged.

The embodiment of the invention also provides a kind of feedback method, system and equipment of response message, is used to provide the scheme of a kind of terminal according to the configuration feedback response message of base station.

A kind of response message feedback method, this method comprises:

Whether what terminal received that the base station issues carries out the configuration information that the space merges to the response message of descending carrier;

Terminal determines whether the response message of descending carrier is carried out the space merging according to described configuration information, if then the response message with descending carrier carries out feeding back to the base station after the space merges, otherwise directly the response message with descending carrier feeds back to the base station.

A kind of terminal, this terminal comprises:

Receiving element is used to receive that the base station issues whether the response message of descending carrier is carried out the configuration information that the space merges;

Determining unit is used for terminal and determines whether the response message of descending carrier is carried out the space merging according to described configuration information;

Feedback unit is used for when described determining unit is defined as being, the response message of descending carrier is carried out feeding back to the base station after the space merges, and when described determining unit was defined as not, directly the response message with descending carrier fed back to the base station.

A kind of wireless communication system, this system comprises:

The base station is used for each descending carrier, need to determine whether terminal that the response message of this descending carrier is carried out the space and merges; According to determining that the result carries out the configuration information that the space merges to the response message whether terminal issues descending carrier;

Terminal is used to receive that the base station issues whether the response message of descending carrier is carried out the configuration information that the space merges; Determine whether the response message of descending carrier is carried out the space merging according to described configuration information, if then the response message with descending carrier carries out feeding back to the base station after the space merges, otherwise directly the response message with descending carrier feeds back to the base station.

Adopt this programme, terminal can determine whether according to the configuration information that the base station issues the response message of descending carrier is carried out the space merging, and then before the feedback response message, response message is carried out or do not carry out the space according to definite result and merge, thereby realized the configuration feedback response message of terminal according to the base station.

Description of drawings

Fig. 1 is a single-frequency spectral system schematic of the prior art;

Fig. 2 is a spectrum aggregating system schematic of the prior art;

The method flow schematic diagram that Fig. 3 provides for the embodiment of the invention;

The other method schematic flow sheet that Fig. 4 provides for the embodiment of the invention;

Fig. 5 A is that the space in the embodiment of the invention one merges schematic diagram;

Fig. 5 B is that the space in the embodiment of the invention two merges schematic diagram;

The system configuration schematic diagram that Fig. 6 provides for the embodiment of the invention;

The device structure schematic diagram that Fig. 7 provides for the embodiment of the invention;

Another device structure schematic diagram that Fig. 8 provides for the embodiment of the invention.

Embodiment

Merge and carry out flexible configuration in order whether to carry out the space terminal to the response message of descending carrier, the embodiment of the invention provides a kind of space to merge collocation method, in this method, the base station is carried out the configuration information that the space merges according to actual conditions to the response message whether terminal issues descending carrier.

Referring to Fig. 3, the space that the embodiment of the invention provides merges collocation method, may further comprise the steps:

Step 30: the base station is to each descending carrier in UE configuration or the one or more descending carriers that activate, need to determine whether terminal that the response message of this descending carrier is carried out the space and merges; Described one or more descending carrier can be the descending carrier that adopts many codeword transmission pattern;

Response message to descending carrier carries out the space merging, is meant that the ACK/NACK information of each code word in the same descending sub frame of this descending carrier is carried out logic add to be handled.

Step 31: the base station is according to determining that the result carries out the configuration information that the space merges to the response message whether terminal issues descending carrier.

In the step 31, the base station can issue described configuration information to terminal by high-level signaling or PDCCH signaling.

Concrete, the base station can be adopted following four kinds of modes by high-level signaling to the specific implementation that terminal issues described configuration information:

The first, the base station is to each descending carrier in described one or more descending carriers, carries out the configuration information that the space merges by high-level signaling to the response message whether terminal issues this descending carrier respectively; Can carry 1 bit information in each high-level signaling, whether be used for indicating terminal carries out the space to the response message of corresponding downstream carrier wave and merges, whether the concrete indication of this 1 bit information carries out the space merging to the response message of which descending carrier, can identify by the descending carrier that carries in the high-level signaling and refer to determine, certainly, also can be the descending carrier of determining this high-level signaling of transmission, then whether this 1 bit information indication carries out the space merging to the response message of this descending carrier.

Second, the base station according to determine the result from pre-configured or in advance with the terminal agreement carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; For example, the base station determine in described one or more descending carrier, need terminal to carry out the pairing descending carrier of response message that the space merges, from pre-configured or in advance with terminal agreement carry out choose the descending carrier set that only comprises definite descending carrier one or more descending carriers set that the space merges, and issue the number information of the descending carrier set of choosing to terminal by high-level signaling, with indicating terminal the response message of the descending carrier in this descending carrier set is carried out the space and merge;

The 3rd, the base station according to determine the result from pre-configured or in advance with the terminal agreement do not carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge; For example, the base station determine in described one or more descending carrier, do not need terminal to carry out the pairing descending carrier of response message that the space merges, from pre-configured or in advance with terminal agreement carry out choose the descending carrier set that only comprises definite descending carrier one or more descending carriers set that the space merges, and issue the number information of the descending carrier set of choosing to terminal by high-level signaling, the response message of the descending carrier in this descending carrier set is not carried out the space with indicating terminal and merge;

The 4th, the base station issues high-level signaling to terminal, all carry terminal at each descending carrier in described one or more descending carriers in this high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges, for example when 5 descending carriers are arranged, can carry 5 bit informations in the high-level signaling, each bit information indicates the response message of a descending carrier whether to need to carry out the space merging respectively.

The base station can be adopted following four kinds of modes by the PDCCH signaling to the specific implementation that terminal issues described configuration information:

First, the base station is carried out the configuration information that the space merges by the PDCCH signaling to the response message whether terminal issues the descending carrier of described PDCCH signaling scheduling, be the base station to each descending carrier in described one or more descending carriers, the PDCCH signaling by dispatching this descending carrier is carried out the configuration information that the space merges to the response message whether terminal issues this descending carrier;

Second, the base station is carried out the configuration information that the space merges by the PDCCH signaling to the response message whether terminal issues the descending carrier at described PDCCH signaling transmission place, be the base station to each descending carrier in described one or more descending carriers, carry out the configuration information that the space merges by the PDCCH signaling on this descending carrier, transmitted to the response message whether terminal issues this descending carrier;

The 3rd, the base station according to determine the result from pre-configured or in advance with the terminal agreement carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge.For example, the base station determine in described one or more descending carrier, need terminal to carry out the pairing descending carrier of response message that the space merges, from pre-configured or in advance with terminal agreement carry out choose the descending carrier set that only comprises definite descending carrier one or more descending carriers set that the space merges, and issue the number information of the descending carrier set of choosing to terminal by the PDCCH signaling, with indicating terminal the response message of the descending carrier in this descending carrier set is carried out the space and merge;

The 4th, the base station according to determine the result from pre-configured or in advance with the terminal agreement do not carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge.For example, the base station determine in described one or more descending carrier, do not need terminal to carry out the pairing descending carrier of response message that the space merges, from pre-configured or in advance with terminal agreement do not carry out choose the descending carrier set that only comprises definite descending carrier one or more descending carriers set that the space merges, and issue the number information of the descending carrier set of choosing to terminal by the PDCCH signaling, the response message of the descending carrier in this descending carrier set is not carried out the space with indicating terminal and merge.

Concrete, whether the PDCCH signaling in the base station by dispatching this descending carrier issues response message to the descending carrier of described PDCCH signaling scheduling when carrying out configuration information that the space merges to terminal, can comprise following four kinds of situations:

The first, carry 1 bit information in the PDCCH signaling that the base station sends, be used for indicating terminal and the response message of all descending carriers of described PDCCH signaling scheduling is all carried out the space merge or all do not carry out the space and merge;

The second, in the PDCCH signaling that the base station sends, all carry terminal at each descending carrier in all descending carriers of described PDCCH signaling scheduling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges; For example when 3 descending carriers of PDCCH signaling scheduling, can carry 3 bit informations in the high-level signaling, each bit information indicates the response message of a descending carrier whether to need to carry out the space merging respectively;

The 3rd, carry in the PDCCH signaling that the base station sends pre-configured or in advance with the information of carrying out a descending carrier set in the descending carrier set that the space merges of terminal agreement, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merges; Each is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that carries out in the descending carrier set that the space merges of terminal agreement in advance.For example, carry the number information of descending carrier set in the PDCCH signaling that the base station sends, this descending carrier set be the base station from pre-configured or in advance with the terminal agreement carry out choosing one or more descending carriers set that the space merges only comprise this PDCCH signaling scheduling and need terminal to carry out the descending carrier set of the pairing descending carrier of response message that the space merges;

The 4th, carry in the PDCCH signaling that the base station sends pre-configured or in advance with the information of not carrying out a descending carrier set in the descending carrier set that the space merges of terminal agreement, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merges; Each is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that does not carry out in the descending carrier set that the space merges of terminal agreement in advance.For example, carry the number information of descending carrier set in the PDCCH signaling that the base station sends, this descending carrier set be the base station from pre-configured or in advance with the terminal agreement do not carry out choosing one or more descending carriers set that the space merges only comprise this PDCCH signaling scheduling, do not need terminal to carry out the descending carrier set of the pairing descending carrier of response message that the space merges.

Preferable, whether whether the base station can effective by the configuration information that high-level signaling notifies terminal to pass through the PDCCH transmitting signaling downwards, promptly notify terminal to support to adopt PDCCH signaling configurating downlink carrier wave whether response message to be carried out the space and merge.

Specific implementation in the step 30 can be in the following way:

Determine terminal when the base station and need carry out the space to the response message of one or more descending carriers when merging, the base station need preferentially to determine terminal to descending auxilliary carrier wave and/or the time domain scheduling fewer descending carrier according to bag response message carry out the space and merge.For example:

One or more descending carriers of same sub-frame of uplink feedback response message determine to need are used in the base station, determine terminal do not carry out the space when merging at the bit number of this sub-frame of uplink feedback response message whether greater than the maximum transmitted bit number; When being defined as being, from these one or more descending carrier selected parts or whole descending carrier, and need to determine terminal that the response message of the descending carrier chosen is carried out the space to merge, do not need terminal that the response message of the descending carrier that is not selected is carried out the space and merge, so that the bit number of the response message that terminal is fed back on this sub-frame of uplink is no more than the maximum transmitted bit number; When not being defined as not, do not need determining terminal that the response message of these one or more descending carriers is carried out the space and merge.Above-mentioned base station is from these one or more descending carrier selected parts or all during descending carrier, preferentially choose descending auxilliary carrier wave and/or the time domain scheduling fewer descending carrier according to bag.

In this method, described high-level signaling can be: Radio Resource control (RRC) signaling or medium access control (MAC) signaling.Described PDCCH signaling can adopt descending control information format (DCIFormat) 2/2A/2B/2C.

Referring to Fig. 4, the embodiment of the invention also provides a kind of response message feedback method, may further comprise the steps:

Step 40: whether what terminal received that the base station issues carries out the configuration information that the space merges to the response message of descending carrier;

Step 41: terminal determines whether the response message of descending carrier is carried out the space merging according to described configuration information, if, then the response message with descending carrier carries out feeding back to the base station after the space merges, otherwise directly the response message with descending carrier feeds back to the base station.

In the step 40, terminal can or make the PDCCH signaling by the high level letter, receives described configuration information.

Concrete, when terminal received described configuration information by high-level signaling, terminal determined whether the response message of descending carrier is carried out the space merging according to described configuration information in the step 41, and its specific implementation can adopt following four kinds of modes:

The first, terminal receives the described configuration information of corresponding each descending carrier respectively by high-level signaling, according to the described configuration information of each descending carrier, determines whether that response message to this descending carrier carries out the space and merges;

Second, terminal is determined a descending carrier set according to the described configuration information that receives by high-level signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described terminal determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges;

The 3rd, terminal is determined a descending carrier set according to the described configuration information that receives by high-level signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described terminal determines that the response message to each descending carrier in the described descending carrier set does not carry out the space and merges;

The 4th, all carry terminal at a plurality of descending carriers in the described configuration information that terminal receives by high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges, described terminal determines whether that according to the independently configuration information of corresponding each descending carrier in the described configuration information response message to the corresponding downstream carrier wave carries out the space and merges.

When terminal received described configuration information by the PDCCH signaling, terminal determined whether the response message of descending carrier is carried out the space merging according to described configuration information in the step 41, and its specific implementation can adopt following four kinds of modes:

The first, terminal is according to the configuration information that carries in the described PDCCH signaling, and the response message that determines whether descending carrier that this PDCCH signaling is dispatched carries out the space and merges;

The second, terminal is according to the configuration information that carries in the described PDCCH signaling, determines whether that response message to the descending carrier that transmits described PDCCH signaling carries out the space and merges;

The 3rd, terminal is determined a descending carrier set according to the configuration information that receives by described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described terminal determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges;

The 4th, terminal is determined a descending carrier set according to the configuration information that receives by described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described terminal determines that the response message to each descending carrier in this descending carrier set does not carry out the space and merges.

The above-mentioned configuration information that carries in according to described PDCCH signaling in terminal, the response message that determines whether descending carrier that this PDCCH signaling is dispatched carry out the space when merging, and can have following four kinds of situations:

The first, terminal is according to the 1 bit configuration information of carrying in the described PDCCH signaling, determines that response message to all descending carriers of described PDCCH signaling scheduling all carries out the space and merges or all do not carry out the space and merge;

Second, all carry independently configuration information at each descending carrier in all descending carriers of described PDCCH signaling scheduling in the configuration information that terminal receives by described PDCCH signaling, terminal determines whether that according to the independently configuration information of corresponding each descending carrier in the described configuration information response message to the corresponding downstream carrier wave carries out the space and merges;

The 3rd, terminal is determined a descending carrier set according to the configuration information that carries in the described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described terminal determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges; Each base station is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that carries out in the descending carrier set that the space merges of base station agreement in advance;

The 4th, terminal is determined a descending carrier set according to the configuration information that carries in the described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described terminal determines that the response message to each descending carrier in the described descending carrier set does not carry out the space and merges; Each base station is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that does not carry out in the descending carrier set that the space merges of base station agreement in advance.

Preferable, if terminal receives described configuration information by the PDCCH signaling, then determine whether according to described configuration information that in terminal response message to descending carrier carries out before the space merges, terminal can be according to the base station by the notice that high-level signaling issues, and determines whether the configuration information of PDCCH transmitting signaling downwards is passed through in the base station effective; If effectively, then determine whether the response message of descending carrier is carried out the space merging according to the configuration information in the PDCCH signaling; If invalid, then do not determine whether the response message of descending carrier is carried out the space merging according to the configuration information in the PDCCH signaling.

In this method, described high-level signaling can be RRC signaling or MAC signaling.Described PDCCH signaling can adopt descending control information format (DCI Format) 2/2A/2B/2C.

The present invention will be described below in conjunction with specific embodiment:

To the LTE-A system, UE is when a sub-frame of uplink multiplexing transmission ACK/NACK, for transmission mode is the descending carrier of many codeword transmission pattern, and it is configurable that whether the ACK/NACK information of many code words carries out the space merging on each descending carrier, and concrete collocation method is as follows:

Method 1: whether each descending carrier carries out the space to the ACK/NACK feedback information of many code words and merges by the semi-static configuration of high-level signaling.

High-level signaling can be RRC signaling or MAC layer signaling;

Method 1-1: high-level signaling can to each descending carrier separately configuration whether the ACK/NACK feedback information of many code words is carried out the space and merges;

1 bit in the configuration information of each descending carrier represents that whether this descending carrier carries out the space to the ACK/NACK feedback information of many code words and merge, when promptly this bit is " 1 ", represent that this descending carrier carries out the space merging to the ACK/NACK feedback information of many code words, during for " 0 ", expression is not carried out, otherwise above-mentioned corresponding relation also can;

Method 1-2: a descending carrier set whether carrying out of high-level signaling notice UE space merges;

K bit high-level signaling can notify UE to carry out the descending carrier set that the ACK/NACK space merges, and perhaps notifies UE not carry out the descending carrier set that the ACK/NACK space merges; Concrete indexical relation can be made an appointment by base station and UE;

A is the pre-configured descending carrier set number of high-level signaling;

In above-mentioned descending carrier set a plurality of descending carriers set that make an appointment in pre-configured or UE and base station for high-level signaling one, each descending carrier is gathered can be sky, perhaps comprises a descending carrier at least;

The configuration of descending carrier set can be configured based on carrier index;

Method 1-3: whether high-level signaling disposes ACK/NACK feedback information to many code words together to a plurality of descending carriers carries out the space and merges;

The K bit high-level signaling configuration/activation descending carrier all to UE disposes whether carry out the merging of ACK/NACK space simultaneously, adopt the bitmap mode, K=N, N is the descending carrier number of UE polymerization or activation, and the corresponding descending carrier of each bit is when this bit is " 1 ", represent that this descending carrier carries out the space merging to the ACK/NACK feedback information of many code words, during for " 0 ", expression is not carried out, otherwise above-mentioned corresponding relation also can;

Method 2: whether each descending carrier carries out the space to the ACK/NACK feedback information of many code words and merges by PDCCH signaling dynamic-configuration.

K among the method 2-1:PDCCH (K 〉=1) bit indicates the descending carrier of this PDCCH scheduling whether the ACK/NACK feedback information to be carried out the space merging;

Described K bit can be the reusing of the original bit field among the PDCCH, and also can be the bit field that increases newly among the PDCCH;

When a PDCCH only dispatches a descending carrier in a subframe (LTE-A Rel-10 system), K=1, when 1 bit that indication ACK/NACK space merges among the PDCCH is " 1 ", indicating this descending carrier that the ACK/NACK feedback information is carried out the space merges, when this bit is " 0 ", indicate this descending carrier that the ACK/NACK feedback information of many code words is not carried out the space merging, otherwise above-mentioned corresponding relation also can;

When a PDCCH can dispatch a plurality of descending carrier in a subframe:

The K=1 bit, at this moment, 1 bit that indication ACK/NACK space merges among the PDCCH is " 1 ", indicate the descending carrier of all many codeword transmission patterns of this PDCCH scheduling that the ACK/NACK feedback information is carried out the space merging, this bit is " 0 ", indicate the descending carrier of all many codeword transmission patterns of this PDCCH scheduling that the ACK/NACK feedback information is not carried out the space merging, otherwise above-mentioned corresponding relation also can;

Bit, B are the pre-configured descending carrier of high-level signaling set number, and described descending carrier set can be sky, perhaps comprise at least one carrier wave in the descending carrier that a PDCCH can dispatch in a subframe simultaneously;

The descending carrier number that K can also can dispatch in a subframe simultaneously for a PDCCH, can adopt the bitmap mode this moment, whether the corresponding descending carrier that this PDCCH can dispatch simultaneously of each bit in the K bit carries out the ACK/NACK space with this descending carrier of this bit configuration and merges;

Dispatching on this descending carrier the indicated content in K bit indication territory of carrying out among a plurality of PDCCH of descending sub frame of ACK/NACK feedback corresponding to same sub-frame of uplink should be consistent;

If inconsistent, UE can think to dispatch mistake, and the carrier wave that can further dispose this PDCCH carries out the ACK/NACK space and merges, and surpasses transmission capacity to avoid number of bits of feedback;

Perhaps in a plurality of PDCCH, select one according to the rule of making an appointment, for example select first or DAI=1's or last PDCCH, determine whether that according to the indication result of its K bit field this descending carrier is carried out the ACK/NACK space to be merged; When ACK/NACK feedback bits sum surpassed transmission capacity, UE can think to dispatch mistake, can be further the ACK/NACK of the descending carrier of all many codeword transmission patterns be carried out the space and merged, and then feed back;

K bit (K=1) among the method 2-2:PDCCH indicates the descending carrier at this PDCCH transmission place whether the ACK/NACK feedback information to be carried out the space merging;

When 1 bit that indication ACK/NACK space merges among the PDCCH is " 1 ", the descending carrier at indication PDCCH place carries out the space to the ACK/NACK feedback information and merges, when this bit is " 0 ", indicate this descending carrier that the ACK/NACK feedback information is not carried out the space and merge, otherwise above-mentioned corresponding relation also can;

The indicated content in K bit indication territory among a plurality of PDCCH that carry out transmitting in the descending sub frame of ACK/NACK feedback corresponding to same sub-frame of uplink on this descending carrier should be consistent;

If inconsistent, UE can think mistake, and the carrier wave that can further dispose this PDCCH carries out the ACK/NACK space and merges, and surpasses transmission capacity to avoid number of bits of feedback; Perhaps,

In a plurality of PDCCH, select one according to the rule of making an appointment, for example select first or DAI=1's or last PDCCH, determine whether that according to the indication result of its K bit field this descending carrier is carried out the ACK/NACK space to be merged; When ACK/NACK feedback bits sum surpassed transmission capacity, UE can think to dispatch mistake, can be further the ACK/NACK of the descending carrier of all many codeword transmission patterns be carried out the space and merged, and then feed back;

Whether descending carrier set of the K bit among the method 2-3:PDCCH (K 〉=1) indication carries out the space to the ACK/NACK feedback information merges;

A is the pre-configured descending carrier set number of high-level signaling;

K bit high-level signaling among the PDCCH can notify UE to carry out the descending carrier set that the ACK/NACK space merges, and perhaps notifies UE not carry out the descending carrier set that the ACK/NACK space merges; Concrete indexical relation can be made an appointment by base station and UE;

During described descending carrier set a plurality of descending carriers that make an appointment in pre-configured or UE and base station for high-level signaling are gathered one can be sky, also can comprise a descending carrier at least;

The indicated content in K bit indication territory among the PDCCH that carries out transmitting in a plurality of descending carriers of ACK/NACK feedback and a plurality of descending sub frame corresponding to same sub-frame of uplink should be consistent;

In a plurality of PDCCH, select one according to the rule of making an appointment, for example select first or DAI=1's or last PDCCH, determine to carry out the descending carrier that the ACK/NACK space merges according to the indication result of its K bit field; When ACK/NACK feedback bits sum surpassed transmission capacity, UE can think to dispatch mistake, can be further the ACK/NACK of the descending carrier of all many codeword transmission patterns be carried out the space and merged, and then feed back;

Method 2-4: whether the pre-configured UE of high-level signaling supports to adopt each descending carrier of PDCCH signaling dynamic-configuration whether the ACK/NACK feedback information of many code words to be carried out the space merges;

High-level signaling can be RRC signaling or MAC layer signaling;

For example, 1 bit in the high-level signaling is used for representing whether UE supports to adopt each descending carrier of PDCCH signaling dynamic-configuration whether to carry out the ACK/NACK space and merge, this bit expresses support for when being " 1 ", represents not support when this bit is " 0 ", otherwise perhaps also can;

When high-rise configuration UE can adopt the ACK/NACK space of each descending carrier of PDCCH signaling dynamic-configuration to merge, the advice method of PDCCH was shown in method 2-1,2-2,2-3;

Being used to refer to each descending carrier and whether carrying out bit field that the ACK/NACK space merges only to adopt each descending carrier of PDCCH signaling dynamic-configuration whether to carry out the ACK/NACK space in the support of higher level parameters configuration UE effective when merging among the PDCCH;

When adopting PDCCH dynamic-configuration ACK/NACK space to merge in the said method 2, PDCCH mainly adopts the DCI format of the many codeword transmission of dispatching downlink, for example: DCI format 2/2A/2B/2C;

The default configuration of each descending carrier can be closed for not carrying out the ACK/NACK space in the said method, also can merge for carrying out the ACK/NACK space; More excellent, when adopting each descending carrier of PDCCH signaling dynamic-configuration whether to carry out the merging of ACK/NACK space, each descending default configuration merges for carrying out the ACK/NACK space, can avoid because whether the configurating downlink carrier wave carries out PDCCH that the space merges when losing, the ACK/NACK number of bits of feedback surpasses transmission capacity.

Said method is in layoutprocedure, and the base station should preferentially merge descending auxilliary carrier wave configuration carrying out ACK/NACK space, guarantees preferentially that promptly downlink main carrier to carry does not carry out the ACK/NACK space and merges;

More excellent, when adopting the PDCCH dynamic-configuration (during method 2), the base station should preferentially dispose on the time domain the less descending carrier of scheduling descending sub frame number and carry out the space and merge, the domain scheduling plurality does not carry out the merging of ACK/NACK space according to the descending carrier of bag during promptly preferential the assurance, with the unnecessary re-transmission of avoiding causing owing to merging; Promptly in the descending sub frame that first is dispatched, the base station can preferentially be determined to merge not existing the dispatching downlink carrier wave to carry out the ACK/NACK space;

Said method is equally applicable to the ACK/NACK transmission on PUCCH and the PUSCH.

Said method is equally applicable to FDD system and TDD system.

Embodiment one:

Suppose that descending carrier 1 is downlink main carrier to carry, the example that employing method 1 configuration ACK/NACK space merged when Fig. 5 B had provided 2 descending carrier polymerizations.At this moment, the default configuration of each descending carrier merges for not carrying out the ACK/NACK space.

The base station end: the ACK/NACK space by semi-static each descending carrier of configuration of RRC signaling merges; Configurating downlink carrier wave 1 does not carry out the space and merges, and descending carrier 2 carries out the space and merges;

Method 1-1: the RRC signaling reset that 1 bit configuration ACK/NACK space of corresponding descending carrier 1 merges, expression is not carried out the ACK/NACK space and is merged, the RRC signaling set that 1 bit configuration ACK/NACK space of corresponding descending carrier 2 merges, expression are carried out the ACK/NACK space and are merged;

A=3 descending carrier set that method 1-2:RRC signaling is pre-configured, set 1={ descending carrier 1, descending carrier 2}, set 2={ descending carrier 1}, therefore set 3={ descending carrier 2} needs

Bit RRC signaling, each set is as shown in table 2 with the corresponding relation of RRC signaling; The base station sends carrier set 3 by the RRC signaling to UE, and configuration is only carried out the ACK/NACK space to descending carrier 2 and merged, and promptly the base station sends 2 bit RRC signalings " 10 ";

The descending carrier set	The RRC letter
		Set 1	00
Set 2	01
		Set 3	10
Reserved	11

Table 2

Method 1-3: the base station adopts the bitmap mode to notify its all descending carriers whether to carry out the configuration that the ACK/NACK space merges by 1 RRC signaling to UE, descending carrier is counted N=2, be K=N=2, the base station sends 2 bit RRC signalings to UE and disposes each descending carrier and whether carry out the space and merge, whether the corresponding descending carrier 1 of first bit in this signaling carries out the ACK/NACK space merges, whether the corresponding descending carrier 2 of second bit carries out the ACK/NACK space merges, be that the base station sends 2 bit RRC signalings " 01 ", 0 expression is not carried out the space and is merged, and 1 expression is carried out the space and merged;

The UE end:

Method 1-1: the RRC signaling that receives corresponding each descending carrier, ACK/NACK space merge field is " 0 " in the RRC signaling of descending carrier 1, UE determines that descending carrier 1 is not carried out the space to be merged, ACK/NACK space merge field is " 1 " in the RRC signaling of descending carrier 2, UE determines that descending carrier 2 is carried out the space to be merged, shown in Fig. 5 A;

Method 1-2: receive the RRC signaling, obtain the carrier set configuration information " 10 " that 2 bits carry out the merging of ACK/NACK space in the RRC signaling, according to the corresponding relation in the table 2, UE determines to include only in this carrier set descending carrier 2, promptly only descending carrier 2 is carried out the space and merge, shown in Fig. 5 A;

Method 1-3: receive the RRC signaling, obtain the carrier set configuration information " 01 " that 2 bits carry out the merging of ACK/NACK space in the RRC signaling,, determine to include only in this carrier set descending carrier 2 according to the bitmap corresponding relation, promptly only descending carrier 2 is carried out the space and merge, shown in Fig. 5 A.

Embodiment two:

The example that employing method 2 configuration ACK/NACK spaces merged when Fig. 5 B had provided 4 descending carrier polymerizations.Carrier dispatching is striden in support, the transfer of data of PDCCH on the downlink main carrier to carry on can dispatching downlink carrier wave 2, descending carrier 1 is a downlink main carrier to carry, transfer of data on it can only be dispatched by the PDCCH on the descending carrier 1, descending carrier 3 and 4 does not support to stride carrier dispatching, then the transfer of data on the descending carrier 3 is by the scheduling of the PDCCH on the descending carrier 3, and the transfer of data on the descending carrier 4 is dispatched by the PDCCH on the descending carrier 4; At this moment, the default configuration of each descending carrier merges for carrying out the ACK/NACK space.

The base station end: whether carry out the ACK/NACK space by each descending carrier of PDCCH signaling dynamic-configuration and merge, configurating downlink carrier wave 1,3 does not carry out the space and merges, and descending carrier 2,4 carries out the space and merges;

Method 2-1: the PDCCH that sends dispatching downlink carrier wave 1 is gone up in the base station at descending carrier 1 (downlink main carrier to carry), and, represent that the descending carrier 1 of this PDCCH scheduling does not carry out the merging of ACK/NACK space with 1 bit ACK among this PDCCH/NACK space merging indication territory reset; The base station upward sends the PDCCH of dispatching downlink carrier wave 2 at descending carrier 1 (downlink main carrier to carry), and with 1 bit ACK among this PDCCH/NACK space merging indication territory set, represents that the descending carrier 2 of this PDCCH scheduling carries out the merging of ACK/NACK space; The base station sends the PDCCH of dispatching downlink carrier wave 3 on descending carrier 3, and 1 bit ACK among this PDCCH/NACK space is merged indication territory reset, represents that the descending carrier 3 of this PDCCH scheduling does not carry out the merging of ACK/NACK space; The base station sends the PDCCH of dispatching downlink carrier wave 4 on descending carrier 4, and 1 bit ACK among this PDCCH/NACK space is merged indication territory set, represents that the descending carrier 4 of this PDCCH scheduling carries out the merging of ACK/NACK space;

Method 2-2: the PDCCH that sends dispatching downlink carrier wave 1 is gone up in the base station at descending carrier 1 (downlink main carrier to carry), and with 1 bit ACK among this PDCCH/NACK space merging indication territory reset, the descending carrier 1 of this PDCCH of expression transmission does not carry out the ACK/NACK space and merges; The PDCCH that sends dispatching downlink carrier wave 2 is gone up at descending carrier 1 (downlink main carrier to carry) in the base station, and 1 bit ACK among this PDCCH/NACK space is merged indication territory reset, and the descending carrier 1 of this PDCCH of expression transmission does not carry out the ACK/NACK space and merges; The base station sends the PDCCH of dispatching downlink carrier wave 3 on descending carrier 3, and 1 bit ACK among this PDCCH/NACK space is merged indication territory reset, and the descending carrier 3 of this PDCCH of expression transmission does not carry out the ACK/NACK space and merges; The base station sends the PDCCH of dispatching downlink carrier wave 4 on descending carrier 4, and 1 bit ACK among this PDCCH/NACK space is merged indication territory set, and the descending carrier 4 of this PDCCH of expression transmission carries out the ACK/NACK space and merges;

A=5 descending carrier set that method 2-3:RRC signaling is pre-configured gathered 1={ descending carrier 1, descending carrier 2, descending carrier 3, descending carrier 4}, set 2={ descending carrier 1, descending carrier 3}, set 3={ descending carrier 2, descending carrier 4}, set 4={ descending carrier 1, descending carrier 2}, therefore set 5={ descending carrier 1} needs

Bit RRC signaling, each set is as shown in table 3 with the corresponding relation of RRC signaling; The PDCCH of the dispatching downlink carrier wave 1,2,3,4 that the base station sends on descending carrier 1,3,4, and 3 bits among these PDCCH are set to indicate the descending carrier set of not carrying out the merging of ACK/NACK space, promptly be set to " 001 ", expression is not carried out the space to descending carrier 1 and 3 and is merged;

Descending carrier	The RRC letter
		Set 1	000
Set 2	001
		Set 3	010
Set 4	011
		Set 5	100
Reserved	101
		Reserved	110
Reserved	111

Table 3

Method 2-4: the base station supports to adopt PDCCH dynamic-configuration ACK/NACK space to merge by the pre-configured UE of RRC signaling, is about to this indication bit set, sends to UE; Then the base station according to the method described above 2-1,2-2 or 2-3 each descending carrier by the PDCCH configuration UE whether carry out the ACK/NACK space and merge, particular content is not given unnecessary details;

The UE end:

Method 2-1:UE receives the PDCCH of dispatching downlink carrier wave 1 on descending carrier 1 (downlink main carrier to carry), and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 0 ", determines the descending carrier 1 of this PDCCH scheduling is not carried out the merging of ACK/NACK space; UE receives the PDCCH of dispatching downlink carrier wave 2 on descending carrier 1 (downlink main carrier to carry), merging the indication territory by 1 bit ACK among this PDCCH/NACK space is " 1 ", determines the descending carrier 2 of this PDCCH scheduling is carried out the merging of ACK/NACK space; UE receives the PDCCH of dispatching downlink carrier wave 3 on descending carrier 3, and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 0 ", determines the descending carrier 3 of this PDCCH scheduling is not carried out the merging of ACK/NACK space; UE receives the PDCCH of dispatching downlink carrier wave 4 on descending carrier 4, and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 1 ", determines the descending carrier 4 of this PDCCH scheduling is carried out the merging of ACK/NACK space, shown in Fig. 5 B;

Method 2-2:UE receives the PDCCH of dispatching downlink carrier wave 1 on descending carrier 1 (downlink main carrier to carry), and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 0 ", determines the descending carrier 1 that transmits this PDCCH is not carried out the merging of ACK/NACK space; UE receives the PDCCH of dispatching downlink carrier wave 2 on descending carrier 1 (downlink main carrier to carry), and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 0 ", determines the descending carrier 1 that transmits this PDCCH is not carried out the merging of ACK/NACK space; Because descending carrier 2 is striden carrier dispatching by the PDCCH on the descending carrier 1, UE does not receive any PDCCH on descending carrier 2, then can't obtain whether descending carrier 2 is carried out the dynamic configuration information that the ACK/NACK space merges, therefore UE operates according to the ACK/NACK space merging attribute of acquiescence descending carrier 2, promptly is defaulted as and carries out the merging of ACK/NACK space; UE receives the PDCCH of dispatching downlink carrier wave 3 on descending carrier 3, and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 0 ", determines the descending carrier 3 that transmits this PDCCH is not carried out the merging of ACK/NACK space; UE receives the PDCCH of dispatching downlink carrier wave 4 on descending carrier 4, and to merge the indication territory by 1 bit ACK among this PDCCH/NACK space be " 1 ", determines the descending carrier 4 that transmits this PDCCH is carried out the merging of ACK/NACK space, shown in Fig. 5 B;

Method 2-3:UE at first receives the pre-configured A=5 of RRC signaling descending carrier set, set 1={ descending carrier 1, descending carrier 2, descending carrier 3, descending carrier 4}, set 2={ descending carrier 1, descending carrier 3}, set 3={ descending carrier 2, descending carrier 4}, set 4={ descending carrier 1, descending carrier 2}, set 5={ descending carrier 1}; The PDCCH of UE receiving scheduling descending carrier 1,2,3,4 on descending carrier 1,3,4, and the 3 bits indication territory of not carrying out the descending carrier set of ACK/NACK space merging by the indication among these PDCCH is " 001 ", corresponding relation according to table 3, determine that descending carrier 1 and 3 is not carried out the space to be merged, shown in Fig. 5 B;

The RRC the signaling whether configuration UE that at first receives method 2-4:UE adopts PDCCH dynamic-configuration ACK/NACK space to merge, according to this 1 bit RRC signaling is " 1 ", determine to support to adopt PDCCH dynamic-configuration space to merge, it is the bit field that exists indication ACK/NACK space to merge among the PDCCH, further 2-1,2-2 or 2-3 are according to the configuration information of the acquisition ACK/NACK space merging of the indication territory among the PDCCH according to the method described above for UE, and particular content is not given unnecessary details.

Referring to Fig. 6, the embodiment of the invention also provides a kind of wireless communication system, and this system comprises:

Base station 60 is used for each descending carrier to UE configuration or one or more descending carriers of activating, need to determine whether terminal that the response message of this descending carrier is carried out the space and merges; According to determining that the result carries out the configuration information that the space merges to the response message whether terminal issues descending carrier;

Terminal 61 is used to receive that the base station issues whether the response message of descending carrier is carried out the configuration information that the space merges; Determine whether the response message of descending carrier is carried out the space merging according to described configuration information, if then the response message with descending carrier carries out feeding back to the base station after the space merges, otherwise directly the response message with descending carrier feeds back to the base station.

Also provide a kind of base station referring to Fig. 7, the embodiment of the invention, this base station comprises:

Determining unit 70 is used for each descending carrier to UE configuration or one or more descending carriers of activating, need to determine whether terminal that the response message of this descending carrier is carried out the space and merges;

Dispensing unit 71 is used for according to determining that the result carries out the configuration information that the space merges to the response message whether terminal issues descending carrier.

Described dispensing unit 71 is used for:

By high-level signaling, issue described configuration information to terminal; Perhaps, by the physical downlink control channel PDCCH signaling, issue described configuration information to terminal.

Described dispensing unit 71 is used for:

By high-level signaling when terminal issues described configuration information, to each descending carrier, carry out the configuration information that the space merges by high-level signaling to the response message whether terminal issues this descending carrier respectively; Perhaps,

According to determine the result from pre-configured or in advance with the terminal agreement carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; Perhaps,

According to determine the result from pre-configured or in advance with the terminal agreement do not carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge; Perhaps,

Issue high-level signaling to terminal, all carry terminal at each descending carrier in this high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges.

Described dispensing unit 71 is used for:

Carry out the configuration information that the space merges by the PDCCH signaling to the response message whether terminal issues the descending carrier of described PDCCH signaling scheduling; Perhaps,

Carry out the configuration information that the space merges by the PDCCH signaling to the response message whether terminal issues the descending carrier at described PDCCH signaling transmission place; Perhaps,

According to determine the result from pre-configured or in advance with the terminal agreement carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; Perhaps,

According to determine the result from pre-configured or in advance with the terminal agreement do not carry out choose a descending carrier set the descending carrier set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge.

Described dispensing unit 71 is used for:

Whether issue response message to the descending carrier of described PDCCH signaling scheduling when carrying out configuration information that the space merges by the PDCCH signaling to terminal:

Carry 1 bit information in the PDCCH signaling that sends, be used for indicating terminal and the response message of all descending carriers of described PDCCH signaling scheduling is all carried out the space merge or all do not carry out the space and merge; Perhaps,

In the PDCCH signaling that sends, all carry terminal at each descending carrier in all descending carriers of described PDCCH signaling scheduling and whether the response message of this descending carrier is carried out the configuration information that the space merges; Perhaps,

Carry in the PDCCH signaling that sends pre-configured or in advance with the information of carrying out a descending carrier set in the descending carrier set that the space merges of terminal agreement, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merges; Each is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that carries out in the descending carrier set that the space merges of terminal agreement in advance; Perhaps

Carry in the PDCCH signaling that sends pre-configured or in advance with the information of not carrying out a descending carrier set in the descending carrier set that the space merges of terminal agreement, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merges; Each is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that does not carry out in the descending carrier set that the space merges of terminal agreement in advance.

This base station also comprises:

Whether notification unit 72 is used for by high-level signaling notice terminal effective by the configuration information of PDCCH transmitting signaling downwards.

Described determining unit 70 is used for:

When definite terminal need be carried out the space to the response message of one or more descending carriers when merging, the base station need preferentially to determine terminal to descending auxilliary carrier wave and/or the time domain scheduling fewer descending carrier according to bag response message carry out the space and merge.

Described high-level signaling is: radio resource control RRC signaling or media access control MAC signaling.

Referring to Fig. 8, the embodiment of the invention also provides a kind of terminal, and this terminal comprises:

Receiving element 80 is used to receive that the base station issues whether the response message of descending carrier is carried out the configuration information that the space merges;

Determining unit 81 is used for terminal and determines whether the response message of descending carrier is carried out the space merging according to described configuration information;

Feedback unit 82 is used for when described determining unit is defined as being, the response message of descending carrier is carried out feeding back to the base station after the space merges, and when described determining unit was defined as not, directly the response message with descending carrier fed back to the base station.

Described receiving element 80 is used for:

By high-level signaling, receive described configuration information; Perhaps, by the physical downlink control channel PDCCH signaling, receive described configuration information.

Described determining unit 81 is used for:

Receive the described configuration information of corresponding each descending carrier respectively by high-level signaling,, determine whether that response message to this descending carrier carries out the space and merges according to the described configuration information of each descending carrier; Perhaps,

Determine a descending carrier set according to the described configuration information that receives by high-level signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described determining unit determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges or do not carry out the space and merge; Perhaps,

Determine a descending carrier set according to the described configuration information that receives by high-level signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described determining unit determines that the response message to each descending carrier in the described descending carrier set does not carry out the space and merges; Perhaps,

All carry terminal at a plurality of descending carriers in the described configuration information that receives by high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges, determine whether respectively that according to the independently configuration information of corresponding each descending carrier in the described configuration information response message to the corresponding downstream carrier wave carries out the space and merges.

Described determining unit 81 is used for:

According to the configuration information that carries in the described PDCCH signaling, the response message that determines whether descending carrier that this PDCCH signaling is dispatched carries out the space and merges; Perhaps,

According to the configuration information that carries in the described PDCCH signaling, determine whether that response message to the descending carrier that transmits described PDCCH signaling carries out the space and merges; Perhaps,

Determine a descending carrier set according to the configuration information that receives by described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, determine that response message to each descending carrier in the described descending carrier set carries out the space and merges or do not carry out the space and merge; Perhaps,

Determine a descending carrier set according to the configuration information that receives by described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, determine that response message to each descending carrier in the described descending carrier set does not carry out the space and merges.

Described determining unit 81 is used for:

The configuration information that carries in according to described PDCCH signaling, the response message that determines whether descending carrier that this PDCCH signaling is dispatched carry out the space when merging:

According to the 1 bit configuration information of carrying in the described PDCCH signaling, determine that response message to all descending carriers of described PDCCH signaling scheduling all carries out the space and merges or all do not carry out the space and merge; Perhaps,

All carry independently configuration information at each descending carrier in all descending carriers of described PDCCH signaling scheduling in the configuration information that receives by described PDCCH signaling, then determine whether that according to the independently configuration information of corresponding each descending carrier in the described configuration information response message to the corresponding downstream carrier wave carries out the space and merges; Perhaps,

Determine a descending carrier set according to the configuration information in the described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, determine that response message to each descending carrier in the described descending carrier set carries out the space and merges; Each base station is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that carries out in the descending carrier set that the space merges of base station agreement in advance; Perhaps,

Determine a descending carrier set according to the configuration information in the described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, determine that response message to each descending carrier in the described descending carrier set does not carry out the space and merges; Each base station is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that does not carry out in the descending carrier set that the space merges of base station agreement in advance.

This terminal also comprises:

Identifying unit 83, be used for when receiving described configuration information by the PDCCH signaling, determine whether according to described configuration information that in described determining unit response message to descending carrier carries out before the space merges, by the notice that high-level signaling issues, determine whether the configuration information of PDCCH transmitting signaling downwards is passed through in the base station effective according to the base station;

Described determining unit 81 is used for:

When the configuration information that passes through the PDCCH transmitting signaling downwards in definite base station is effective, determine whether the response message of descending carrier is carried out the space merging according to described configuration information.

To sum up, beneficial effect of the present invention comprises:

In the scheme that the embodiment of the invention provides, the configuration information that the space merges is carried out to the response message whether terminal issues descending carrier in the base station, terminal determines whether the response message of descending carrier is carried out the space merging according to the configuration information that receives, if, then the response message with descending carrier carries out feeding back to the base station after the space merges, otherwise directly the response message with descending carrier feeds back to the base station.As seen, adopt the present invention, whether base station flexible configuration terminal is as required carried out the space to the response message of descending carrier and is merged, terminal then can determine whether according to the configuration of base station the response message of descending carrier is carried out the space merging, make the ACK/NACK information bit of terminal feedback merge and change flexibly, adapting to different transmission plans, thereby improve the ACK/NACK efficiency of transmission according to whether carrying out the space, avoid unnecessary retransmission, and then improve systematic function.The present invention is suitable for FDD and TDD system.

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

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

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

Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.

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

Claims

1. a space merges collocation method, it is characterized in that this method comprises:

2. the method for claim 1 is characterized in that, the base station issues described configuration information by high-level signaling to terminal; Perhaps,

The base station issues described configuration information by the physical downlink control channel PDCCH signaling to terminal.

3. method as claimed in claim 2 is characterized in that, described base station issues described configuration information to terminal and comprises by high-level signaling:

The base station is to each descending carrier, carries out the configuration information that the space merges by high-level signaling to the response message whether terminal issues this descending carrier respectively; Perhaps,

The base station from pre-configured or in advance with terminal agreement carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; Perhaps,

The base station from pre-configured or in advance with terminal agreement do not carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge; Perhaps,

The base station issues high-level signaling to terminal, all carries terminal at a plurality of descending carriers in the described high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges.

4. method as claimed in claim 2 is characterized in that, described base station issues described configuration information to terminal and comprises by the PDCCH signaling:

The base station is carried out the configuration information that the space merges by the PDCCH signaling to the response message whether terminal issues the descending carrier of described PDCCH signaling scheduling; Perhaps,

The base station is carried out the configuration information that the space merges by the PDCCH signaling to the response message whether terminal issues the descending carrier at described PDCCH signaling transmission place; Perhaps,

The base station from pre-configured or in advance with terminal agreement carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; Perhaps,

The base station from pre-configured or in advance with terminal agreement do not carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge.

5. method as claimed in claim 4 is characterized in that, issues whether response message to the descending carrier of described PDCCH signaling scheduling when carrying out configuration information that space merge by the PDCCH signaling to terminal in the base station:

Carry 1 bit information in the PDCCH signaling that the base station sends, be used for indicating terminal and the response message of all descending carriers of described PDCCH signaling scheduling is all carried out the space merge or all do not carry out the space and merge; Perhaps,

In the PDCCH signaling that the base station sends, all carry terminal at each descending carrier in all descending carriers of described PDCCH signaling scheduling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges; Perhaps,

Carry in the PDCCH signaling that the base station sends pre-configured or in advance with the information of carrying out a descending carrier set in the descending carrier set that the space merges of terminal agreement, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merges; Each is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that carries out in the descending carrier set that the space merges of terminal agreement in advance; Perhaps

Carry in the PDCCH signaling that the base station sends pre-configured or in advance with the information of not carrying out a descending carrier set in the descending carrier set that the space merges of terminal agreement, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merges; Each is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that does not carry out in the descending carrier set that the space merges of terminal agreement in advance.

6. as arbitrary described method among the claim 2-5, it is characterized in that this method further comprises:

Whether the base station is effective by the configuration information of PDCCH transmitting signaling downwards by high-level signaling notice terminal.

7. as arbitrary described method among the claim 1-5, it is characterized in that described base station is to each descending carrier, need to determine whether terminal that the response message of this descending carrier is carried out the space and merge and comprise:

Determine terminal when the base station and need carry out the space to the response message of one or more descending carriers when merging, the base station need preferentially to determine terminal to descending auxilliary carrier wave and/or the time domain scheduling fewer descending carrier according to bag response message carry out the space and merge.

8. as arbitrary described method among the claim 2-5, it is characterized in that described high-level signaling is:

Radio resource control RRC signaling or media access control MAC signaling.

9. a response message feedback method is characterized in that, this method comprises:

10. method as claimed in claim 9 is characterized in that, terminal receives described configuration information by high-level signaling; Perhaps,

Terminal receives described configuration information by the physical downlink control channel PDCCH signaling.

11. method as claimed in claim 10 is characterized in that, when terminal received described configuration information by high-level signaling, described terminal determined whether that according to described configuration information response message to descending carrier carries out the space and merges and comprise:

Terminal receives the described configuration information of corresponding each descending carrier respectively by high-level signaling, according to the described configuration information of each descending carrier, determines whether that response message to this descending carrier carries out the space and merges; Perhaps,

Terminal is determined a descending carrier set according to the described configuration information that receives by high-level signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described terminal determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges; Perhaps,

Terminal is determined a descending carrier set according to the described configuration information that receives by high-level signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described terminal determines that the response message to each descending carrier in the described descending carrier set does not carry out the space and merges; Perhaps,

All carry terminal at a plurality of descending carriers in the described configuration information that terminal receives by high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges, described terminal determines whether that according to the independently configuration information of corresponding each descending carrier in the described configuration information response message to the corresponding downstream carrier wave carries out the space and merges.

12. method as claimed in claim 10 is characterized in that, when terminal received described configuration information by the PDCCH signaling, described terminal determined whether that according to described configuration information response message to descending carrier carries out the space and merges and comprise:

Terminal is according to the configuration information that carries in the described PDCCH signaling, and the response message that determines whether descending carrier that described PDCCH signaling is dispatched carries out the space and merges; Perhaps,

Terminal is according to the configuration information that carries in the described PDCCH signaling, determines whether that response message to the descending carrier that transmits described PDCCH signaling carries out the space and merges; Perhaps,

Terminal is determined a descending carrier set according to the configuration information that receives by described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described terminal determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges; Perhaps,

Terminal is determined a descending carrier set according to the configuration information that receives by described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described terminal determines that the response message to each descending carrier in this descending carrier set does not carry out the space and merges.

13. method as claimed in claim 12 is characterized in that, at the configuration information that terminal is carried in according to described PDCCH signaling, the response message that determines whether descending carrier that described PDCCH signaling is dispatched carries out the space when merging:

Terminal is according to the 1 bit configuration information of carrying in the described PDCCH signaling, determines that response message to all descending carriers of described PDCCH signaling scheduling all carries out the space and merges or all do not carry out the space and merge; Perhaps,

All carry independently configuration information at each descending carrier in all descending carriers of described PDCCH signaling scheduling in the configuration information that terminal receives by described PDCCH signaling, terminal determines whether that according to the independently configuration information of corresponding each descending carrier in the described configuration information response message to the corresponding downstream carrier wave carries out the space and merges; Perhaps,

Terminal is determined a descending carrier set according to the configuration information that carries in the described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with in a plurality of descending carriers set that the space merges one of carrying out of base station agreement, described terminal determines that the response message to each descending carrier in the described descending carrier set carries out the space and merges; Each base station is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that carries out in the descending carrier set that the space merges of base station agreement in advance; Perhaps,

Terminal is determined a descending carrier set according to the configuration information that carries in the described PDCCH signaling, the set of described descending carrier for the base station pre-configured or in advance with the base station agreement do not carry out in a plurality of descending carriers set that the space merges one, described terminal determines that the response message to each descending carrier in the described descending carrier set does not carry out the space and merges; Each base station is pre-configured or be the descending carrier of described PDCCH signaling scheduling with the descending carrier that does not carry out in the descending carrier set that the space merges of base station agreement in advance.

14. as arbitrary described method among the claim 10-13, it is characterized in that, if terminal receives described configuration information by the PDCCH signaling, then determine whether according to described configuration information that in terminal response message to descending carrier carries out before the space merges, this method further comprises:

Terminal by the notice that high-level signaling issues, determines whether the configuration information of PDCCH transmitting signaling downwards is passed through in the base station effective according to the base station;

Described terminal determines whether that according to described configuration information response message to descending carrier carries out the space and merges and comprise:

When the configuration information that terminal is passed through the PDCCH transmitting signaling downwards in definite base station is effective, determine whether the response message of descending carrier is carried out the space merging according to described configuration information.

15., it is characterized in that described high-level signaling is as arbitrary described method among the claim 10-13:

Radio resource control RRC signaling or media access control MAC signaling.

16. a base station is characterized in that, this base station comprises:

17. base station as claimed in claim 16 is characterized in that, described dispensing unit is used for:

By high-level signaling, issue described configuration information to terminal; Perhaps,

By the physical downlink control channel PDCCH signaling, issue described configuration information to terminal.

18. base station as claimed in claim 17 is characterized in that, described dispensing unit is used for:

From pre-configured or in advance with terminal agreement carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; Perhaps,

From pre-configured or in advance with terminal agreement do not carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by high-level signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge; Perhaps,

Issue high-level signaling to terminal, all carry terminal at a plurality of descending carriers in the described high-level signaling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges.

19. base station as claimed in claim 17 is characterized in that, described dispensing unit is used for:

From pre-configured or in advance with terminal agreement carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, with indicating terminal the response message of all descending carriers in this descending carrier set is carried out the space and merge; Perhaps,

From pre-configured or in advance with terminal agreement do not carry out choose a descending carrier set a plurality of descending carriers set that the space merges, and the information of the descending carrier chosen set is sent to terminal by the PDCCH signaling, the response message of all descending carriers in this descending carrier set is not carried out the space with indicating terminal and merge.

20. base station as claimed in claim 19 is characterized in that, described dispensing unit is used for:

In the PDCCH signaling that sends, all carry terminal at each descending carrier in all descending carriers of described PDCCH signaling scheduling and whether the response message of this descending carrier is carried out the independently configuration information that the space merges; Perhaps,

21., it is characterized in that this base station also comprises as arbitrary described base station among the claim 17-20:

Whether notification unit is used for by high-level signaling notice terminal effective by the configuration information of PDCCH transmitting signaling downwards.

22., it is characterized in that described determining unit is used for as arbitrary described base station among the claim 16-20:

23., it is characterized in that described high-level signaling is as arbitrary described base station among the claim 17-20:

Radio resource control RRC signaling or media access control MAC signaling.

24. a terminal is characterized in that, this terminal comprises:

25. terminal as claimed in claim 24 is characterized in that, described receiving element is used for:

By high-level signaling, receive described configuration information; Perhaps,

By the physical downlink control channel PDCCH signaling, receive described configuration information.

26. terminal as claimed in claim 25 is characterized in that, described determining unit is used for:

27. terminal as claimed in claim 25 is characterized in that, described determining unit is used for:

According to the configuration information that carries in the described PDCCH signaling, the response message that determines whether descending carrier that described PDCCH signaling is dispatched carries out the space and merges; Perhaps,

28. terminal as claimed in claim 27 is characterized in that, described determining unit is used for:

The configuration information that carries in according to described PDCCH signaling, the response message that determines whether descending carrier that described PDCCH signaling is dispatched carry out the space when merging:

29., it is characterized in that this terminal also comprises as arbitrary described terminal among the claim 25-28:

Identifying unit, be used for when receiving described configuration information by the PDCCH signaling, determine whether according to described configuration information that in described determining unit response message to descending carrier carries out before the space merges, by the notice that high-level signaling issues, determine whether the configuration information of PDCCH transmitting signaling downwards is passed through in the base station effective according to the base station;

Described determining unit is used for:

30., it is characterized in that described high-level signaling is as arbitrary described terminal among the claim 25-28:

Radio resource control RRC signaling or media access control MAC signaling.

31. a wireless communication system is characterized in that, this system comprises: