CN102281593A - Method, system and device for sending and receiving uplink control information - Google Patents
Method, system and device for sending and receiving uplink control information Download PDFInfo
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- CN102281593A CN102281593A CN2011101881830A CN201110188183A CN102281593A CN 102281593 A CN102281593 A CN 102281593A CN 2011101881830 A CN2011101881830 A CN 2011101881830A CN 201110188183 A CN201110188183 A CN 201110188183A CN 102281593 A CN102281593 A CN 102281593A
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Abstract
The embodiment of the invention discloses a method, a system and a device for sending and receiving uplink control information, relates to the technical field of wireless communication, and is used for saving physical uplink control channel (PUCCH) resource overhead. In the invention, a terminal uses one PUCCH resource to send the uplink control information to a base station on one or more antenna ports according to an uplink control channel sending mode indicated by the base station, and the base station receives the uplink control information on one PUCCH resource. Compared with the prior art, the invention can effectively save the PUCCH resource overhead.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of ascending control information sending and receiving method, system and equipment.
Background technology
(3rd Generation Partnership Project, 3GPP) in the version 10 (Rel-10), Physical Uplink Control Channel (PUCCH) form 3 (format 3) can be used for the transmission of ascending control information in 3G (Third Generation) Moblie standardization body.The transmission method of PUCCH format 3 as depicted in figs. 1 and 2.Wherein, Figure 1 shows that (cyclic prefix, CP) the PUCCH format 3 under Figure 2 shows that the PUCCH format 3 under expansion (extended) CP to normal (normal) Cyclic Prefix.D1 and D2 for the useful information bit through chnnel coding and the modulation after data, wherein the useful information bit can comprise the ascending control information bit, for example up ack/nack (ACK/NACK) feedback bits, dispatch request bit (scheduling request, SR) etc.RS is a frequency pilot sign, and (reference signal, RS), wherein concrete RS is defined by agreement 3GPP TS36.211 frequently to upload transporting at frequency pilot sign.[w1, w2 ..., w5] be the time domain orthogonal sequence, concrete [w1, w2 ..., w5] define by 3GPP TS36.211.
If user terminal (User Equipment, UE) use the single antenna port to send PUCCH format 3, indication according to the base station, UE determines the resource sequence number of a PUCCH format 3, resource sequence number determines to send Physical Resource Block (PRB) position of PUCCH format 3, concrete time domain orthogonal sequence [w1 thus, w2 ..., w5] and concrete pilot signal.If UE uses many antenna ports to send PUCCH format 3, indication according to the base station, UE determines the resource sequence number of a PUCCH format 3 for each antenna port, determine to send the PRB position of PUCCH format 3, concrete time domain orthogonal sequence [w1 by corresponding resource sequence number for each antenna port, w2, ..., w5] and concrete pilot signal.Antenna port refers to the antenna port of PUCCH herein.The PUCCH format 3 of each antenna port at frequency domain or/and quadrature in the time domain, the PRB position difference (being the frequency domain quadrature) at the PUCCH format 3 resource places of different antennae port correspondence for example, perhaps the time domain orthogonal sequence difference (being the time domain quadrature) used of PUCCH format 3 resources of different antennae port correspondence.Therefore, many antenna ports transmission plan of PUCCH format 3 can be called spatial domain orthogonal resource emission classification (spatial orthogonal resource transmit diversity, SORTD).
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
Many antenna ports transmission plan of PUCCH format 3 uses SORTD in the prior art.Need PUCCH format 3 resources of quadrature for each antenna port of a UE, the resources requirement of PUCCH format 3 is big, the overhead height.
Summary of the invention
The embodiment of the invention provides a kind of ascending control information sending and receiving method, system and equipment, is used to save the PUCCH resource overhead.
A kind of ascending control information sending method, this method comprises:
Terminal receives the indication information of the ascending control channel send mode of base station transmission;
Terminal is determined a Physical Uplink Control Channel PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
A kind of ascending control information method of reseptance, this method comprises:
The base station sends the indication information of ascending control channel send mode to terminal;
The ascending control information that the base station sends by a Physical Uplink Control Channel PUCCH resource receiving terminal.
A kind of terminal, this terminal comprises:
Receiving element is used to receive the indication information of the ascending control channel send mode that the base station sends;
Transmitting element is used for determining a Physical Uplink Control Channel PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
A kind of base station, this base station comprises:
Transmitting element is used for the indication information to terminal transmission ascending control channel send mode;
Receiving element is used for the ascending control information that sends by a Physical Uplink Control Channel PUCCH resource receiving terminal.
A kind of wireless communication system, this system comprises:
The base station is to the indication information of terminal transmission ascending control channel send mode; Ascending control information by a Physical Uplink Control Channel PUCCH resource receiving terminal transmission;
Terminal, the indication information of the ascending control channel send mode that the reception base station sends; Determine a PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
In the scheme that the embodiment of the invention provides, terminal according to the ascending control channel send mode of base station indication on one or more antenna ports, use a PUCCH resource to send ascending control information to the base station, the base station then receives ascending control information on this PUCCH resource.Need use the PUCCH resource of a plurality of quadratures to compare with UE in the prior art when a plurality of antenna ports send ascending control information, the present invention only needs a PUCCH resource to send ascending control information, can effectively save the expense of PUCCH resource.
Description of drawings
Fig. 1 is the 3 transmission schematic diagrames of the PUCCH format under the normal CP in the prior art;
Fig. 2 is the 3 transmission schematic diagrames of the PUCCH format under the expansion CP in the prior art;
The end side method flow schematic diagram that Fig. 3 provides for the embodiment of the invention;
The base station side method flow schematic diagram that Fig. 4 provides for the embodiment of the invention;
The system configuration schematic diagram that Fig. 5 provides for the embodiment of the invention;
The terminal structure schematic diagram that Fig. 6 provides for the embodiment of the invention;
The architecture of base station schematic diagram that Fig. 7 provides for the embodiment of the invention.
Embodiment
In order to save the expense of PUCCH resource, the embodiment of the invention provides a kind of ascending control information sending and receiving method, in this method, terminal according to the ascending control channel send mode of base station indication on one or more antenna ports, use a PUCCH resource to send ascending control information to the base station, the base station then receives ascending control information on this PUCCH resource.
Referring to Fig. 3, the ascending control information sending method that the embodiment of the invention provides may further comprise the steps:
Step 30: terminal receives the indication information of the ascending control channel send mode of base station transmission;
Step 31: terminal is determined a PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
Here, terminal can be determined a PUCCH resource that is used to carry ascending control information according to the indication of base station, perhaps a terminal PUCCH resource will fixing or the arrange PUCCH resource that is defined as being used to carry ascending control information.A PUCCH resource is meant the resource of a PUCCH resource sequence number correspondence.This PUCCH resource comprises the frequency domain resource of described PUCCH at least, and for example the PRB resource can certainly comprise time domain orthogonal sequence and/or pilot signal.
As a kind of execution mode, in the step 30, the indication information of described ascending control channel send mode can comprise the information of pre-coding matrix, accordingly, terminal according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station, its specific implementation can be as follows:
At first, terminal uses described pre-coding matrix that the ascending control information that needs send is carried out precoding processing; Then, terminal is used described PUCCH resource on each antenna port, the ascending control information after the base station sends precoding processing.
As another kind of execution mode, in the step 30, the indication information of described ascending control channel send mode can comprise the information that sends the employed antenna port of ascending control information, accordingly, terminal according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station, its specific implementation can be as follows:
Terminal uses described PUCCH resource to send ascending control information to the base station on the indicated antenna port of the information of described ascending control channel send mode.
Further, terminal can send the RS of ascending control information correspondence in the following manner:
Mode one, terminal can send the pilot signal RS of described ascending control information correspondence according to send mode fixing or agreement to the base station.For example, terminal sends the pilot signal RS of described ascending control information correspondence simultaneously at each antenna port.Perhaps;
Mode two, terminal send the RS of described ascending control information correspondence according to described ascending control channel send mode to the base station.For example, when the indication information of described ascending control channel send mode comprised the information of pre-coding matrix, terminal used described pre-coding matrix that the RS of described ascending control information correspondence is carried out precoding processing, and the RS after the base station sends precoding processing.Again for example, when the indication information of described ascending control channel send mode comprised the information of pre-coding matrix, terminal was determined to send ascending control channel on one or more antenna ports, and sent RS to the base station on described definite antenna port.Again for example, when the indication information of described ascending control channel send mode comprised the information of antenna port, terminal sent RS to the base station on this antenna port.
If terminal sends described RS on a plurality of antenna ports in same subframe, then described a plurality of RS can pass through time domain spread spectrum or frequency domain spread spectrum mutually orthogonal.For example, RS goes up at a plurality of Single Carrier Frequency Division Multiple Access symbols (SC-FDMA symbol) and sends, and then can make a plurality of RS quadratures that send on described a plurality of SC-FDMA symbols by using the time domain spreading code of quadrature.Again for example, RS is at a plurality of resource elements (resource element of frequency domain, RE) go up transmission, then can be by using the RS signal of quadrature, make a plurality of RS quadratures that on described a plurality of RE, send, the RS signal of described quadrature can be the quadrature PUCCH pilot frequency sequence by 3GPP TS36.211 definition, the perhaps sequence of any quadrature.
Other terminal sends the mode of the RS of ascending control information correspondence and does not get rid of.For example, terminal can be determined the send mode of the corresponding RS of ascending control information according to the independent indication in base station, and the send mode of described RS can be different with the send mode of described ascending control information.
The specific implementation of step 30 can be as follows:
At first, terminal receives the descending control information format (DCI Format) that the base station sends at Physical Downlink Control Channel (PDCCH); Then, terminal obtains the indication information of ascending control channel send mode according to described DCI Format.
Concrete, terminal obtains the indication information of ascending control channel send mode according to described DCI Format, and its specific implementation can be in the following way:
Mode one, terminal reads the indication information bit of ascending control channel send mode from described DCI Format, according to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the ascending control channel send mode of the indication information bit correspondence that reads, perhaps;
Mode two, terminal is determined the corresponding mask (MASK) of cyclic redundancy check (CRC) code (CRC) of described DCI Format, according to the corresponding relation of predefined MASK and ascending control channel send mode, determine the ascending control channel send mode of described MASK correspondence.
Here, can determine the MASK of CRC correspondence according to following formula:
c
k＝(b
k+x
rnti，k+x
AP，k)mod2；
Wherein, b
kBe the CRC bit of DCI format before the adding mask, x
Rnti, kBe Radio Network Temporary Identifier (RNTI) bit of terminal, x
AP, kBe MASK, c
kBe the CRC bit behind the adding mask.
The corresponding relation of above-mentioned MASK and ascending control channel send mode can be the corresponding relation of MASK and pre-coding matrix, the perhaps corresponding relation of MASK and antenna port.
Illustrate, described DCI Format can be for being used to dispatch the descending scheduling signaling of Physical Downlink Shared Channel (PDSCH), or be used to discharge the DCI Format of descending semi-continuous scheduling.
Further, described terminal receives described DCI format in subframe n, and the ascending control channel send mode according to described DCI format indication in subframe m sends described ascending control information, and described subframe m is determined by described subframe n.For example, m=n+K, K are positive integer, and concrete value is stipulated by agreement.
Preferable, terminal uses the antenna port that sends described ascending control information to send detection reference signal (SRS); Perhaps, described terminal sends the RS quadrature of the employed different antenna port of described ascending control information.
In this method, terminal sends the employed ascending control channel form of described ascending control information: the PUCCH format 3 of 3GPP LTE definition, or PUCCH format 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b channel is selected (with channel selection).This method directly expanded application in other ascending control channel form.
Referring to Fig. 4, the invention process a kind of ascending control information method of reseptance is provided, may further comprise the steps:
Step 40: the base station sends the indication information of ascending control channel send mode to terminal;
Step 41: the base station ascending control information that receiving terminal sends on a PUCCH resource.This PUCCH resource is that the base station indicating terminal sends the employed PUCCH resource of ascending control information, or the PUCCH resource that is used to send ascending control information of fixing/agreement.A PUCCH resource is meant the resource of a PUCCH resource sequence number correspondence.This PUCCH resource comprises the frequency domain resource of described PUCCH at least, and for example the PRB resource can certainly comprise time domain orthogonal sequence and/or pilot signal.
As a kind of execution mode, in the step 40, the indication information of described ascending control channel send mode can comprise: terminal is carried out the information of the employed pre-coding matrix of precoding processing to ascending control information, or terminal sends the information of the employed antenna port of ascending control information.
Further, the RS of the described ascending control information correspondence of receiving terminal transmission is gone back in the base station when receiving ascending control information, and described RS is sent by the mode or the described ascending control channel send mode of terminal according to fixing mode or agreement.Certainly, the send mode of other RS is not got rid of, and for example, terminal can be determined the send mode of the corresponding RS of ascending control information according to the independent indication in base station, and the send mode of described RS can be different with the send mode of described ascending control information.
The specific implementation of step 40 can be as follows:
The base station sends DCI Format by Physical Downlink Control Channel to terminal, to use this DCI Format indication ascending control channel send mode.Concrete, can comprise following implementation:
Mode one, the base station is according to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, the indication information bit of the ascending control channel send mode of the definite ascending control channel send mode correspondence that need indicate, send the DCI Format of the indication information bit carry described ascending control channel send mode by Physical Downlink Control Channel to terminal, perhaps;
Mode two, base station are determined the MASK of the ascending control channel send mode correspondence of needs indication according to the MASK of predefined CRC and the corresponding relation of ascending control channel send mode; Determine CRC according to described MASK, and send the DCI Format that carries this CRC to terminal.
Here, can determine CRC according to following formula:
c
k＝(b
k+x
rnti，k+x
AP，k)mod2；
Wherein, b
kBe the CRC bit of DCI format before the adding mask, x
Rnti, kBe Radio Network Temporary Identifier (RNTI) bit of terminal, x
AP, kBe MASK, c
kBe the CRC bit behind the adding mask.
The corresponding relation of above-mentioned MASK and ascending control channel send mode can be the corresponding relation of MASK and pre-coding matrix, the perhaps corresponding relation of MASK and antenna port.
Illustrate, described DCI Format is the descending scheduling signaling that is used to dispatch PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
Further, the base station sends described DCI format to described terminal in subframe n, receive the described ascending control information of described terminal according to the ascending control channel send mode transmission of described DCI format indication in subframe m, described subframe m is determined by described subframe n.For example, m=n+K, K are positive integer, and concrete value is stipulated by agreement.
Preferable, before the base station sends the indication information of ascending control channel send mode to terminal, the base station can receive the upward signal that described terminal sends, and determines to make the ascending control channel send mode of the demodulation performance optimum of described ascending control channel according to the upward signal of described reception; Accordingly, the base station sends the indication information of the described definite ascending control channel send mode that makes described ascending control channel demodulation performance optimum in the step 40 to terminal.
Concrete, the base station receive upward signal that described terminal sends can for: the base station receives the SRS of described terminal, and described SRS sends on the antenna port that sends described ascending control information; Perhaps, the base station receives the RS that described terminal sends the employed different antenna port of ascending control information, the RS quadrature of described different antenna port.
If terminal sends RS on a plurality of antenna ports in same subframe, then described a plurality of RS can pass through time domain spread spectrum or frequency domain spread spectrum mutually orthogonal.For example, RS goes up at a plurality of Single Carrier Frequency Division Multiple Access symbols (SC-FDMA symbol) and sends, and then can make a plurality of RS quadratures that send on described a plurality of SC-FDMA symbols by using the time domain spreading code of quadrature.Again for example, RS is at a plurality of resource elements (resource element of frequency domain, RE) go up transmission, then can be by using the RS signal of quadrature, make a plurality of RS quadratures that on described a plurality of RE, send, the RS signal of described quadrature can be the quadrature PUCCH pilot frequency sequence by 3GPP TS36.211 definition, the perhaps sequence of any quadrature.
In this method, the ascending control channel form that carries described ascending control information is: the PUCCH format 3 of 3GPP LTE definition, or PUCCH format 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.This method directly expanded application in other ascending control channel form.
Below the present invention is specifically described:
The present invention proposes the delivery plan of the many antenna ports of a kind of ascending control channel.Its main thought is for the UE of many antenna ports, according to the indication of base station, to determine the send mode of many antenna ports ascending control channel, the identical uplink control channel resource of wherein a plurality of antenna ports uses.
Particularly, the present invention includes following steps:
Step 1: the base station sends the indication information of ascending control channel send mode to terminal;
Step 2: terminal is determined the ascending control information of required transmission, and determines the PUCCH resource of a described ascending control information of carrying; And according to described indication information on one or more antenna port of self, the PUCCH resource of use determining sends described ascending control information;
Step 3: the base station on described PUCCH resource, the ascending control information that receiving terminal sends.
In the step 1, the indication information of ascending control channel send mode can be the information of the pre-coding matrix that uses when many antenna ports send ascending control information.Can use described pre-coding matrix in each resource element (RE), to carry out precoding.For example, the symbol that carries ascending control information that needs to send among RE is s, supposes that described pre-coding matrix is W, can be y=Ws through after the precoding at the transmission signal y of a plurality of antenna ports so in described RE.Wherein y is the column vector of N x 1, and W is the matrix of N x N, and s is the column vector of N x 1, and wherein N is the antenna port number of described terminal.Each element among the s can be identical, also can be different.Pre-coding matrix W can be among the pre-coding matrix code book C.If N=2, C can comprise following pre-coding matrix C={W1, W2, W3}.Described pre-coding matrix code book C only is an embodiment, and other pre-coding matrix code book C does not get rid of.
In the step 1, the indication information of ascending control channel send mode can be to send the employed antenna port of ascending control information.For example, if terminal is supported two antenna ports, the base station can be notified on the terminal antenna port therein and send ascending control information.More excellent in a plurality of antenna ports of a terminal antenna port can be determined by the upward signal of terminal transmission in the base station, is used to send described ascending control information.
The indication information of the ascending control channel send mode that the base station sends in the step 1 can only act on the data symbol of ascending control channel, also can act on the data symbol and the frequency pilot sign of ascending control channel simultaneously.Data symbol is the OFDM symbol that is used to send ascending control information in the PUCCH resource, and frequency pilot sign is the OFDM symbol that is used to send RS in the PUCCH resource.Concrete:
When the indication information of the ascending control channel send mode that the base station sends in step 1 only acts on the data symbol of ascending control channel, terminal is only according to this ascending control channel send mode, on one or more antenna port, use the data symbol in the PUCCH resource, send described ascending control information.As for the send mode of the RS of ascending control information correspondence can be fix or agreement, for example, terminal sends the RS of ascending control information correspondence simultaneously on a plurality of antenna ports.
When the indication information of the ascending control channel send mode that the base station sends in step 1 acts on the data symbol of ascending control channel and frequency pilot sign simultaneously, terminal is except according to this ascending control channel send mode, on one or more antenna port, use the data symbol in the PUCCH resource, send outside the described ascending control information, also on one or more antenna port, use frequency pilot sign in the PUCCH resource, send the RS of described ascending control information correspondence according to this ascending control channel send mode.For example, when the indication information of ascending control channel send mode comprised the information of pre-coding matrix, terminal also used this pre-coding matrix that the RS on the frequency pilot sign is carried out precoding processing, and the RS after the base station sends precoding processing.Again for example, when the indication information of described ascending control channel send mode comprised the information of pre-coding matrix, terminal was determined to send ascending control information on one or more antenna ports, and sent RS to the base station on described definite antenna port.Again for example, when the indication information of ascending control channel send mode comprised the information of antenna port, terminal sent corresponding RS at this antenna port.
Certainly, the send mode of described ascending control information and pilot signal can be identical, also can be different.For example, if terminal is supported two antenna ports, a base station notice terminal antenna port therein sends described ascending control information, simultaneously base station notice terminal therein or all send the frequency pilot sign of described ascending control information correspondence on the antenna port.
In the step 1, the base station can send the indication information of ascending control channel send mode by down control channel.Down control channel is used to carry certain Downlink Control Information, and described Downlink Control Information also can be called a descending control information format (downlink control information format, DCI format).One or more bit among the described DCI format can be used to indicate the ascending control channel send mode.The different MASK of the CRC bit of described DCI format also can be used to indicate the ascending control channel send mode.For example, suppose that length is that the CRC of the DCI format of 16 bits is b
k, terminal length is that the RNTI of 16 bits is x
Rnti, k, two length that are defined as follows are 16 antenna ports M ASKx
AP, k,
| The ascending control channel antenna port | Antenna ports M |
| Antenna port | |
| 0 | <0，0，0，0，0，0，0，0，0，0，0，0，0，0，0，0> |
| |
<0，0，0，0，0，0，0，0，0，0，0，0，0，0，0，1> |
The CRC bit of then described DCI format is obtained by following formula.
c
k＝(b
k+x
rnti，k+x
AP，k)mod2
Terminal judges that according to the CRC bit of the DCI format of the base station transmission that receives among two antenna ports M ASK is sent out, thereby determines the antenna port of the required use of transmission ascending control information.The MASK of the wherein number of the MASK of above-mentioned antenna port, and antenna port and the corresponding relation of antenna port only are embodiment.
Above-mentioned DCI format is used for dispatching downlink shared data channel (physical downlink control channel, PDSCH) Chuan Shu descending scheduling signaling (DL grant), also can be to be used to discharge descending semi-continuous scheduling (semi-persistent scheduling, DCI format SPS).
More excellent ascending control channel send mode can be selected according to the upward signal of described terminal in the base station when determining the ascending control channel send mode of described terminal.For example, the base station can be according to detection reference signal (the sounding reference signal of described terminal in each antenna port transmission, SRS) or the RS of the ascending control channel that sends at each antenna port of described terminal, determine more excellent ascending control channel send mode.For example, if the base station use the SRS of described terminal to determine that more excellent ascending control channel send mode, then described terminal are used to send SRS should be identical with the antenna port that is used to send described ascending control information.If the base station uses the RS of the ascending control channel of described terminal transmission to determine more excellent ascending control channel send mode, the RS quadrature of the antenna port that the ascending control information that then described terminal sends is corresponding different.The criterion of described more excellent ascending control channel send mode can be the demodulation performance of more excellent ascending control channel, for example adopts described more excellent ascending control channel send mode can make the received signal to noise ratio of ascending control channel the highest.
If terminal sends RS on a plurality of antenna ports in same subframe, then described a plurality of RS can pass through time domain spread spectrum or frequency domain spread spectrum mutually orthogonal.For example, RS goes up at a plurality of Single Carrier Frequency Division Multiple Access symbols (SC-FDMA symbol) and sends, and then can make a plurality of RS quadratures that send on described a plurality of SC-FDMA symbols by using the time domain spreading code of quadrature.Again for example, RS is at a plurality of resource elements (resource element of frequency domain, RE) go up transmission, then can be by using the RS signal of quadrature, make a plurality of RS quadratures that on described a plurality of RE, send, the RS signal of described quadrature can be the quadrature PUCCH pilot frequency sequence by 3GPP TS36.211 definition, the perhaps sequence of any quadrature.
Ascending control information among the present invention can be upload control ACK/NACK feedback information, also can be other any ascending control informations.
The present invention can be used in the transmission of any ascending control channel form, the PUCCH format 3 that comprises 3GPP LTE definition, PUCCH format 1/1a/1b, PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.This method directly expanded application in other ascending control channel form.
Referring to Fig. 5, the embodiment of the invention provides a kind of wireless communication system, and this system comprises:
Referring to Fig. 6, the embodiment of the invention provides a kind of terminal, can be applicable in the above-mentioned wireless communication system, and this terminal comprises:
Receiving element 60 is used to receive the indication information of the ascending control channel send mode that the base station sends;
Transmitting element 61 is used for determining a PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
Described transmitting element 61 is used for:
When the indication information of ascending control channel send mode comprises the information of pre-coding matrix, use described pre-coding matrix that the ascending control information that needs send is carried out precoding processing; On each antenna port, use described PUCCH resource, the ascending control information after the base station sends precoding processing.
Described transmitting element 61 is used for:
When the indication information of described ascending control channel send mode comprises the information that sends the employed antenna port of ascending control information, on the indicated antenna port of the information of described ascending control channel send mode, use described PUCCH resource to send ascending control information to the base station.
Described transmitting element 61 also is used for:
According to send mode fixing or agreement, send the pilot signal RS of described ascending control information correspondence to the base station; Perhaps,
Use described ascending control channel send mode, send the RS of described ascending control information correspondence to the base station.
Described receiving element 60 is used for:
Receive the DCI Format that the base station sends at Physical Downlink Control Channel; Obtain the indication information of ascending control channel send mode according to described DCI Format.
Described receiving element 60 is used for:
From described DCI Format, read the indication information bit of ascending control channel send mode, according to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the ascending control channel send mode of the indication information bit correspondence that reads; Perhaps,
Determine the MASK of the CRC correspondence of described DCI Format,, determine the ascending control channel send mode of described MASK correspondence according to the corresponding relation of predefined MASK and ascending control channel send mode.
Described DCI Format is the descending scheduling signaling that is used to dispatch PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
Described receiving element 60 is used for: receive described DCI format at subframe n; Described transmitting element 61 is used for: send described ascending control information at subframe m according to the ascending control channel send mode that described DCI format indicates, described subframe m is determined by described subframe n.
Described PUCCH resource comprises the frequency domain resource of described PUCCH at least.
Described transmitting element 61 also uses the antenna port that sends described ascending control information to send SRS; Perhaps, described transmitting element 61 sends the RS quadrature of the employed different antenna port of described ascending control information.
Described transmitting element 61 sends the employed ascending control channel form of described ascending control information and is: the PUCCH format 3 of 3GPP LTE definition, or PUCCH format 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.
Referring to Fig. 7, the embodiment of the invention provides a kind of base station, can be applicable in the above-mentioned wireless communication system, and this base station comprises:
Transmitting element 70 is used for the indication information to terminal transmission ascending control channel send mode;
Receiving element 71 is used for the ascending control information that sends by a PUCCH resource receiving terminal.
The indication information of the ascending control channel send mode that described transmitting element 70 sends comprises:
Terminal is carried out the information of the employed pre-coding matrix of precoding processing to ascending control information, or terminal sends the information of the employed antenna port of ascending control information.
Described receiving element 71 also is used for:
The RS of the described ascending control information correspondence that receiving terminal sends, described RS sends according to the mode or the described ascending control channel send mode of fixing mode or agreement.
Described transmitting element 70 is used for:
Send DCI Format by Physical Downlink Control Channel to terminal, to use this DCI Format indication ascending control channel send mode.
Described transmitting element 70 is used for:
According to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the indication information bit of the ascending control channel send mode of the ascending control channel send mode correspondence that needs are indicated, send the DCI Format of the indication information bit that carries described ascending control channel send mode by Physical Downlink Control Channel to terminal; Perhaps,
According to the MASK of predefined CRC and the corresponding relation of ascending control channel send mode, definite MASK that needs the ascending control channel send mode correspondence of indication; Determine CRC according to described MASK, and send the DCI Format that carries this CRC to terminal.
Described DCI Format is the descending scheduling signaling that is used to dispatch PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
Described transmitting element 70 is used for: send described DCI format at subframe n to described terminal; Described receiving element 71 is used for: receive the described ascending control information of described terminal according to the ascending control channel send mode transmission of described DCI format indication at subframe m, described subframe m is determined by described subframe n.
Described PUCCH resource comprises the frequency domain resource of described PUCCH at least.
This base station also comprises:
Determining unit 72 is used for receiving the upward signal that described terminal sends before described transmitting element sends the indication information of ascending control channel send mode to terminal; Determine to make the ascending control channel send mode of the demodulation performance optimum of described ascending control channel according to the upward signal of described reception;
Described transmitting element 70 is used for:
Send the indication information of the definite ascending control channel send mode that makes described ascending control channel demodulation performance optimum of described determining unit to terminal.
Described determining unit 72 is used for:
Receive the SRS of described terminal, described SRS sends on the antenna port that sends described ascending control information; Perhaps,
Receive the RS that described terminal sends the employed different antenna port of ascending control information, the RS quadrature of described different antenna port.
The ascending control channel form that carries described ascending control information is: the PUCCH format 3 of 3GPP LTE definition, or PUCCH format 1/1a/1b,, or PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, terminal according to the ascending control channel send mode of base station indication on one or more antenna ports, use a PUCCH resource to send ascending control information to the base station, the base station then receives ascending control information on this PUCCH resource.Need use the PUCCH resource of a plurality of quadratures to compare with UE in the prior art when a plurality of antenna ports send ascending control information, the present invention only needs a PUCCH resource to send ascending control information, can effectively save the expense of PUCCH resource.
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 (45)
1. an ascending control information sending method is characterized in that, this method comprises:
Terminal receives the indication information of the ascending control channel send mode of base station transmission;
Terminal is determined a Physical Uplink Control Channel PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
2. the method for claim 1, it is characterized in that, the indication information of described ascending control channel send mode comprises the information of pre-coding matrix, described according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information and comprise to the base station:
Terminal uses described pre-coding matrix that the ascending control information that needs send is carried out precoding processing;
Terminal is used described PUCCH resource on each antenna port, the ascending control information after the base station sends precoding processing.
3. the method for claim 1, it is characterized in that, the indication information of described ascending control channel send mode comprises the information that sends the employed antenna port of ascending control information, described according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information and comprise to the base station:
Terminal uses described PUCCH resource to send ascending control information to the base station on the indicated antenna port of the information of described ascending control channel send mode.
4. as claim 1 or 2 or 3 described methods, it is characterized in that this method further comprises:
Terminal sends the pilot signal RS of described ascending control information correspondence according to send mode fixing or agreement to the base station; Perhaps,
Terminal is used described ascending control channel send mode, sends the RS of described ascending control information correspondence to the base station.
5. as claim 1 or 2 or 3 described methods, it is characterized in that the indication information that described terminal receives the ascending control channel send mode of base station transmission comprises:
Terminal receives the descending control information format DCI Format that the base station sends at Physical Downlink Control Channel;
Terminal obtains the indication information of ascending control channel send mode according to described DCI Format.
6. method as claimed in claim 5 is characterized in that, described terminal comprises according to the indication information that described DCI Format obtains the ascending control channel send mode:
Terminal reads the indication information bit of ascending control channel send mode from described DCI Format, according to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the ascending control channel send mode of the indication information bit correspondence that reads; Perhaps,
Terminal is determined the mask MASK of the cyclic redundancy check (CRC) code CRC correspondence of described DCI Format, according to the corresponding relation of predefined MASK and ascending control channel send mode, determines the ascending control channel send mode of described MASK correspondence.
7. method as claimed in claim 5 is characterized in that, described DCI Format is the descending scheduling signaling that is used to dispatch Physical Downlink Shared Channel PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
8. method as claimed in claim 5, it is characterized in that, described terminal receives described DCI format in subframe n, described terminal sends described ascending control information according to the ascending control channel send mode of described DCI format indication in subframe m, and described subframe m is determined by described subframe n.
9. as claim 1 or 2 or 3 described methods, it is characterized in that described PUCCH resource comprises the frequency domain resource of described PUCCH at least.
10. as claim 1 or 2 or 3 described methods, it is characterized in that described terminal uses the antenna port that sends described ascending control information to send detection reference signal SRS; Perhaps,
Described terminal sends the RS quadrature of the employed different antenna port of described ascending control information.
11. as claim 1 or 2 or 3 described methods, it is characterized in that, terminal sends the employed ascending control channel form of described ascending control information: the Physical Uplink Control Channel form PUCCH format 3 of the long evolving system 3GPP LTE of 3G (Third Generation) Moblie standardization body definition, or PUCCHformat 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b channel is selected.
12. an ascending control information method of reseptance is characterized in that, this method comprises:
The base station sends the indication information of ascending control channel send mode to terminal;
The ascending control information that the base station sends by a Physical Uplink Control Channel PUCCH resource receiving terminal.
13. method as claimed in claim 12 is characterized in that, the indication information of described ascending control channel send mode comprises:
Terminal is carried out the information of the employed pre-coding matrix of precoding processing to ascending control information, or terminal sends the information of the employed antenna port of ascending control information.
14. as claim 12 or 13 described methods, it is characterized in that, further comprise:
The pilot signal RS of the described ascending control information correspondence that the base station receiving terminal sends, described RS sends according to the mode or the described ascending control channel send mode of fixing mode or agreement.
15., it is characterized in that the base station comprises to the indication information that terminal sends the ascending control channel send mode as arbitrary described method among the claim 12-13:
The base station sends DCI Format by Physical Downlink Control Channel to terminal, to use this DCI Format indication ascending control channel send mode.
16. method as claimed in claim 15 is characterized in that, described base station sends DCI Format by Physical Downlink Control Channel to terminal, comprises to use this DCI Format indication ascending control channel send mode:
The base station is according to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the indication information bit of the ascending control channel send mode of the ascending control channel send mode correspondence that needs are indicated, send the DCI Format of the indication information bit that carries described ascending control channel send mode by Physical Downlink Control Channel to terminal; Perhaps,
The MASK of the ascending control channel send mode correspondence of needs indication is determined according to the mask MASK of predefined cyclic redundancy check (CRC) code CRC and the corresponding relation of ascending control channel send mode in the base station; Determine CRC according to described MASK, and send the DCI Format that carries this CRC to terminal.
17. method as claimed in claim 15 is characterized in that, described DCI Format is the descending scheduling signaling that is used to dispatch Physical Downlink Shared Channel PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
18. method as claimed in claim 15, it is characterized in that, described base station sends described DCI format to described terminal in subframe n, described base station receives the described ascending control information of described terminal according to the ascending control channel send mode transmission of described DCI format indication in subframe m, described subframe m is determined by described subframe n.
19., it is characterized in that described PUCCH resource comprises the frequency domain resource of described PUCCH at least as claim 12 or 13 described methods.
20., it is characterized in that before the base station sent the indication information of ascending control channel send mode to terminal, this method further comprised as arbitrary described method among the claim 12-13:
The base station receives the upward signal that described terminal sends;
The ascending control channel send mode of the demodulation performance optimum of described ascending control channel is determined to make in the base station according to the upward signal of described reception;
Described base station comprises to the indication information that terminal sends the ascending control channel send mode:
The base station sends the indication information of the described definite ascending control channel send mode that makes described ascending control channel demodulation performance optimum to terminal.
21. method as claimed in claim 20 is characterized in that, the upward signal that described base station receives described terminal transmission comprises:
The base station receives the detection reference signal SRS of described terminal, and described SRS sends on the antenna port that sends described ascending control information; Perhaps,
The base station receives the RS that described terminal sends the employed different antenna port of ascending control information, the RS quadrature of described different antenna port.
22. as arbitrary described method among the claim 12-13, it is characterized in that, the ascending control channel form that carries described ascending control information is: the PUCCH format 3 of 3GPP LTE definition, or PUCCHformat 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.
23. a terminal is characterized in that, this terminal comprises:
Receiving element is used to receive the indication information of the ascending control channel send mode that the base station sends;
Transmitting element is used for determining a Physical Uplink Control Channel PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
24. terminal as claimed in claim 23 is characterized in that, described transmitting element is used for:
When the indication information of ascending control channel send mode comprises the information of pre-coding matrix, use described pre-coding matrix that the ascending control information that needs send is carried out precoding processing; On each antenna port, use described PUCCH resource, the ascending control information after the base station sends precoding processing.
25. terminal as claimed in claim 23 is characterized in that, described transmitting element is used for:
When the indication information of described ascending control channel send mode comprises the information that sends the employed antenna port of ascending control information, on the indicated antenna port of the information of described ascending control channel send mode, use described PUCCH resource to send ascending control information to the base station.
26., it is characterized in that described transmitting element also is used for as claim 23 or 24 or 25 described terminals:
According to send mode fixing or agreement, send the pilot signal RS of described ascending control information correspondence to the base station; Perhaps,
Use described ascending control channel send mode, send the RS of described ascending control information correspondence to the base station.
27., it is characterized in that described receiving element is used for as claim 23 or 24 or 25 described terminals:
Receive the descending control information format DCI Format that the base station sends at Physical Downlink Control Channel;
Obtain the indication information of ascending control channel send mode according to described DCI Format.
28. terminal as claimed in claim 27 is characterized in that, described receiving element is used for:
From described DCI Format, read the indication information bit of ascending control channel send mode, according to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the ascending control channel send mode of the indication information bit correspondence that reads; Perhaps,
Determine the mask MASK of the cyclic redundancy check (CRC) code CRC correspondence of described DCI Format,, determine the ascending control channel send mode of described MASK correspondence according to the corresponding relation of predefined MASK and ascending control channel send mode.
29. terminal as claimed in claim 27 is characterized in that, described DCI Format is the descending scheduling signaling that is used to dispatch Physical Downlink Shared Channel PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
30. terminal as claimed in claim 27 is characterized in that, described receiving element is used for: receive described DCI format at subframe n;
Described transmitting element is used for: send described ascending control information at subframe m according to the ascending control channel send mode that described DCI format indicates, described subframe m is determined by described subframe n.
31., it is characterized in that described PUCCH resource comprises the frequency domain resource of described PUCCH at least as claim 23 or 24 or 25 described terminals.
32., it is characterized in that described transmitting element also uses the antenna port that sends described ascending control information to send detection reference signal SRS as claim 23 or 24 or 25 described terminals; Perhaps,
Described transmitting element sends the RS quadrature of the employed different antenna port of described ascending control information.
33. as claim 23 or 24 or 25 described terminals, it is characterized in that, described transmitting element sends the employed ascending control channel form of described ascending control information: the PUCCH format 3 of 3GPP LTE definition, or PUCCH format 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.
34. a base station is characterized in that, this base station comprises:
Transmitting element is used for the indication information to terminal transmission ascending control channel send mode;
Receiving element is used for the ascending control information that sends by a Physical Uplink Control Channel PUCCH resource receiving terminal.
35. base station as claimed in claim 34 is characterized in that, the indication information of the ascending control channel send mode that described transmitting element sends comprises:
Terminal is carried out the information of the employed pre-coding matrix of precoding processing to ascending control information, or terminal sends the information of the employed antenna port of ascending control information.
36., it is characterized in that described receiving element also is used for as claim 34 or 35 described base stations:
The pilot signal RS of the described ascending control information correspondence that receiving terminal sends, described RS sends according to the mode or the described ascending control channel send mode of fixing mode or agreement.
37., it is characterized in that described transmitting element is used for as arbitrary described base station among the claim 34-35:
Send DCI Format by Physical Downlink Control Channel to terminal, to use this DCI Format indication ascending control channel send mode.
38. base station as claimed in claim 37 is characterized in that, described transmitting element is used for:
According to the indication information bit of predefined ascending control channel send mode and the corresponding relation of ascending control channel send mode, determine the indication information bit of the ascending control channel send mode of the ascending control channel send mode correspondence that needs are indicated, send the DCI Format of the indication information bit that carries described ascending control channel send mode by Physical Downlink Control Channel to terminal; Perhaps,
According to the mask MASK of predefined cyclic redundancy check (CRC) code CRC and the corresponding relation of ascending control channel send mode, definite MASK that needs the ascending control channel send mode correspondence of indication; Determine CRC according to described MASK, and send the DCI Format that carries this CRC to terminal.
39. base station as claimed in claim 37 is characterized in that, described DCI Format is the descending scheduling signaling that is used to dispatch Physical Downlink Shared Channel PDSCH, or is used to discharge the DCI Format of descending semi-continuous scheduling.
40. base station as claimed in claim 37 is characterized in that, described transmitting element is used for: send described DCI format at subframe n to described terminal;
Described receiving element is used for: receive the described ascending control information of described terminal according to the ascending control channel send mode transmission of described DCI format indication at subframe m, described subframe m is determined by described subframe n.
41., it is characterized in that described PUCCH resource comprises the frequency domain resource of described PUCCH at least as claim 34 or 35 described base stations.
42., it is characterized in that this base station also comprises as arbitrary described base station among the claim 34-35:
Determining unit is used for receiving the upward signal that described terminal sends before described transmitting element sends the indication information of ascending control channel send mode to terminal; Determine to make the ascending control channel send mode of the demodulation performance optimum of described ascending control channel according to the upward signal of described reception;
Described transmitting element is used for:
Send the indication information of the definite ascending control channel send mode that makes described ascending control channel demodulation performance optimum of described determining unit to terminal.
43. base station as claimed in claim 42 is characterized in that, described determining unit is used for:
Receive the detection reference signal SRS of described terminal, described SRS sends on the antenna port that sends described ascending control information; Perhaps,
Receive the RS that described terminal sends the employed different antenna port of ascending control information, the RS quadrature of described different antenna port.
44. as arbitrary described base station among the claim 34-35, it is characterized in that, the ascending control channel form that carries described ascending control information is: the PUCCH format 3 of 3GPP LTE definition, or PUCCH format 1/1a/1b, or PUCCH format 2/2a/2b, or PUCCH format 1b with channel selection.
45. a wireless communication system is characterized in that, this system comprises:
The base station is to the indication information of terminal transmission ascending control channel send mode; Ascending control information by a Physical Uplink Control Channel PUCCH resource receiving terminal transmission;
Terminal, the indication information of the ascending control channel send mode that the reception base station sends; Determine a PUCCH resource that is used to carry ascending control information; And according to described ascending control channel send mode on one or more antenna ports, use described PUCCH resource to send ascending control information to the base station.
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| CN102281593B (en) | 2014-09-10 |
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