CN107615851B

CN107615851B - Sending method and receiving method of uplink control information, user equipment and base station

Info

Publication number: CN107615851B
Application number: CN201580080471.0A
Authority: CN
Inventors: 官磊; 吕永霞
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-08-14
Filing date: 2015-08-14
Publication date: 2019-12-17
Anticipated expiration: 2035-08-14
Also published as: WO2017028042A1; CN107615851A

Abstract

The invention provides a sending method and a receiving method of uplink control information, user equipment and a base station. The method comprises the steps that UE receives downlink data information sent by a base station; the UE determines PUCCH resources, wherein a first RB occupied by the PUCCH resources comprises M first code channels used for transmitting a data part and N second code channels used for transmitting a DMRS part, each first code channel corresponds to an orthogonal code sequence, each second code channel corresponds to a DMRS sequence, N < M, M and N are integers, M >1, and N is larger than or equal to 1; the UE transmits uplink control information on PUCCH resources. The embodiment of the invention uses at least two first code channels in the first RB occupied by the PUCCH resource for transmitting the data part of the feedback information, namely, arranges a plurality of PF3 on a single first RB, and improves the capacity of transmitting the feedback information on the single RB by increasing the number of code channels for transmitting the data part of the feedback information in the single first RB under the condition of not changing PF3 in the existing LTE system.

Description

Sending method and receiving method of uplink control information, user equipment and base station

Technical Field

the invention relates to the field of LTE (Long term evolution) communication, in particular to a sending method, a receiving method, user equipment and a base station of uplink control information.

background

Long Term Evolution (LTE) system downlink and uplink are respectively based on Orthogonal Frequency Division Multiplexing Access (OFDMA) and Single Carrier-Frequency Division Multiplexing Access (SC-FDMA), and time-Frequency resources are divided into OFDM or SC-FDMA symbols (hereinafter referred to as time-domain symbols) in a time-domain dimension and subcarriers in a Frequency-domain dimension. The transmission of traffic in the LTE system is based on base station scheduling, and the basic time unit of scheduling is one subframe, and one subframe includes multiple time domain symbols.

LTE employs a Hybrid Automatic Repeat Request (HARQ) mechanism, and according to the following behavior example, after receiving a Physical Downlink Shared Channel (PDSCH), a User Equipment (UE) sends feedback information through a Physical Uplink Control Channel (PUCCH), where a specific data portion of the feedback information is: if the PDSCH receives correctly, the UE feeds back an Acknowledgement (ACK) on the PUCCH, and if the PDSCH receives incorrectly, the UE feeds back an incorrect (NACK) on the PUCCH.

LTE also supports Carrier Aggregation (CA) technology, i.e., a base station configures multiple carriers to one UE to increase the data rate of the UE, a PUCCH transmission mode in the CA mode usually employs PUCCH format 3(PUCCHFormat 3, PF3) for transmission, and a PF3 mode employs a discrete fourier transform Spread orthogonal frequency division multiplexing (DFT-Spread-OFDM, DFT-S-OFDM) transmission structure, in which one resource block can support multiple UEs for PUCCH communication, a single UE can only occupy one time domain symbol in one resource block, and the original data portion transmission capacity of feedback information supported by one time domain symbol is about 20 bits, CA of 5 carriers can be supported, and one Carrier supports 4 bits.

However, as LTE technology continues to evolve, more and more feedback information needs to be transmitted, for example, more than 20 bits of original data portion needs to be transmitted, for example, 40 bits of original data portion needs to be transmitted, and the current PF3 structure cannot meet the requirement for the transmission capacity of the data portion supported by a single UE.

Disclosure of Invention

embodiments of the present invention provide a sending method, a receiving method, a user equipment and a base station for uplink control information, which can increase the capacity of feedback information transmission on a single Resource Block (RB) by increasing the number of code channels of a data portion for transmitting feedback information.

in view of this, a first aspect of the embodiments of the present invention provides a method for sending uplink control information, which includes:

UE receives downlink data information sent by a base station;

The UE determines PUCCH resources, wherein the PUCCH resources are used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

The first RB occupied by the PUCCH resource comprises M first code channels used for transmitting a data part and N second code channels used for transmitting a DMRS part, each first code channel corresponds to an orthogonal code sequence, each second code channel corresponds to a DMRS sequence, wherein N is less than M, M and N are integers, M is more than 1, and N is more than or equal to 1;

The UE transmits uplink control information on PUCCH resources.

with reference to the first aspect, in a first possible implementation manner of the first aspect, N is equal to 1.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the method may further include:

and the UE carries out independent Discrete Fourier Transform (DFT) on the data part on each first code channel in the M first code channels respectively.

with reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the method may further include:

And the UE respectively carries out independent spreading on the data part on each first code channel in the M first code channels by adopting different spreading code sequences.

With reference to the first aspect, the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, and any one possible implementation manner of the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the method may further include:

channel coding the data part;

and determining the number M of first code channels occupied by the data part after channel coding according to the bit number of the feedback information before channel coding.

With reference to the first aspect, the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, and any one possible implementation manner of the third possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the method may further include:

Receiving a data configuration instruction sent by a base station;

and the UE determines the number M of the first code channels according to the data configuration instruction.

With reference to the first aspect, the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, the third possible implementation manner of the first aspect, the fourth possible implementation manner of the first aspect, and the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the first code channel and the second code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

a second aspect of the present invention further provides a method for sending uplink control information, where the method includes:

UE receives downlink data information sent by a base station;

The method comprises the steps that UE determines physical uplink control channel PUCCH resources, the PUCCH resources are used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information and a demodulation reference signal DMRS part used for demodulating the data part;

the PUCCH resources occupy K continuous second RBs, each second RB comprises a third code channel used for transmitting a data part, each third code channel corresponds to an orthogonal code sequence, the DMRS parts comprise a first DMRS part and a second DMRS part, frequency domains of which are not overlapped with each other,

The first DMRS part occupies K1 second RBs in K1 second RBs, each RB in K1 second RBs occupied by the first DMRS part comprises a fourth code channel used for transmitting the first DMRS part, each fourth code channel corresponds to a first sequence of the DMRS, the second DMRS part occupies K-K1 second RBs, the K-K1 second RBs occupied by the second DMRS part correspond to a fifth code channel used for transmitting the second DMRS part, the fifth code channel corresponds to a second sequence of the DMRS, wherein K1 is more than or equal to 0 and less than or equal to K, K and K1 are integers, and K is greater than 1;

the UE transmits uplink control information on PUCCH resources.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the data portions transmitted in the third code channels within the K1 second RBs including the fourth code channel all use frequency-domain cyclic shift.

with reference to the second aspect, in a second possible implementation manner of the second aspect, the data portion transmitted in the third code channel within the K-K1 second RBs corresponding to the fifth code channel is not subjected to frequency domain cyclic shift.

with reference to the second aspect, or any possible implementation manner of the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in a third possible implementation manner of the first aspect, at least two first sequences of the K1 first sequences use the same or different root sequences.

With reference to the second aspect, or any possible implementation manner of the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in a fourth possible implementation manner of the first aspect, at least two first sequences of the K1 first sequences use the same root sequence and different cyclic shifts.

With reference to the second aspect, the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, the third possible implementation manner of the second aspect, and the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the first aspect, the method may further include:

UE receives a DMRS configuration instruction issued by a base station;

and the UE determines that the first DMRS part occupies K1 second RBs and the second DMRS part occupies K-K1 second RBs according to the DMRS configuration instruction.

With reference to the second aspect, the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, the third possible implementation manner of the second aspect, the fourth possible implementation manner of the second aspect, and the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the first aspect, the method may further include:

And the UE carries out uniform DFT on the data parts carried on the third code channels of the K second RBs.

With reference to the second aspect, the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, the third possible implementation manner of the second aspect, the fourth possible implementation manner of the second aspect, the fifth possible implementation manner of the second aspect, and any one possible implementation manner of the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the first aspect, the third code channel, the fourth code channel, and the fifth code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

A third aspect of the embodiments of the present invention further provides a method for receiving uplink control information, where the method may include:

A base station sends downlink data information to User Equipment (UE);

The base station determines PUCCH resources; the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information sent by UE and a demodulation reference signal (DMRS) part for demodulating the data part;

The first resource block RB occupied by the PUCCH resource comprises M first code channels used for transmitting a data part and N second code channels used for transmitting a DMRS part, each first code channel corresponds to an orthogonal code sequence, each second code channel corresponds to a DMRS sequence, wherein N is less than M, M and N are integers, M is more than 1, and N is more than or equal to 1;

The base station receives uplink control information on PUCCH resources.

with reference to the third aspect, in a first possible implementation manner of the third aspect, N is equal to 1.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the method may further include:

And the base station sends a data configuration instruction to the UE, wherein the data configuration instruction indicates that the number M of the first code channels used for transmitting the data part is included in the first RB.

With reference to the third aspect, or any possible implementation manner of the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the method further includes:

The base station demodulates the data portion according to the received DMRS portion.

with reference to the third aspect, or any possible implementation manner of the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the first code channel and the second code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

a fourth aspect of the present invention further provides a method for receiving uplink control information, where the method includes:

A base station sends downlink data information to User Equipment (UE);

the base station determines PUCCH resources; the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information sent by the UE and a DMRS part for demodulating the data part;

The base station receives uplink control information on PUCCH resources.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the data portions transmitted in the third code channels within the K1 second RBs including the fourth code channel all use frequency-domain cyclic shift.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the data portion transmitted in the third code channel within the K-K1 second RBs corresponding to the fifth code channel is not subjected to frequency domain cyclic shift.

With reference to the fourth aspect, or any possible implementation manner of the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, at least two first sequences of the K1 first sequences use the same or different root sequences.

with reference to the fourth aspect, or any possible implementation manner of the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, at least two first sequences of the K1 first sequences use the same root sequence and different cyclic shifts.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and any one possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the method may further include:

and the base station issues a DMRS configuration instruction to the UE so that the UE configures second RBs respectively occupied by the first DMRS part and the second DMRS part according to the DMRS configuration instruction.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, the second possible implementation manner of the fourth aspect, the third possible implementation manner of the fourth aspect, and the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the third code channel, the fourth code channel, and the fifth code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

A fifth aspect of the embodiments of the present invention further provides a user equipment, which may include:

The first receiving module is used for receiving downlink data information sent by a base station;

The first processing module is used for determining a Physical Uplink Control Channel (PUCCH) resource, wherein the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

And the first sending module is used for sending the uplink control information on the PUCCH resources.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the first processing module is further configured to perform discrete fourier transform DFT on the data portion on each of the M first code channels.

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the first processing module is further configured to perform independent spreading on the data part on each of the M first code channels by using different spreading code sequences.

With reference to the fifth aspect, or any possible implementation manner of the first possible implementation manner of the fifth aspect and the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the first processing module is further configured to perform channel coding on the data portion;

the first processing module is further configured to determine, according to the number of bits of the feedback information before channel coding, the number M of first code channels that the data portion after channel coding needs to occupy.

with reference to the fifth aspect, or any possible implementation manner of the first possible implementation manner of the fifth aspect and the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the first receiving module is further configured to receive a data configuration instruction sent by the base station;

The first processing module is further configured to determine the number M of the first code channels according to the data configuration instruction.

The sixth aspect of the present invention further provides a user equipment, which may include:

The second receiving module is used for receiving downlink data information sent by the base station;

The second processing module is used for determining a Physical Uplink Control Channel (PUCCH) resource, wherein the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

and the second sending module is used for sending the uplink control information on the PUCCH resources.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the first receiving module is further configured to receive a DMRS configuration instruction issued by the base station;

the second processing module is further configured to determine that the first DMRS part occupies K1 second RBs according to the DMRS configuration instruction, and the second DMRS part occupies K-K1 second RBs.

with reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the second processing module is further configured to perform uniform DFT on data portions carried on third code channels of the K second RBs.

A seventh aspect of the present embodiment further provides a base station, which may include:

A third sending module, configured to send downlink data information to the UE;

A third processing module, configured to determine a physical uplink control channel PUCCH resource; the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information sent by the UE according to downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

and a third receiving module, configured to receive the uplink control information on the PUCCH resource.

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the third sending module is further configured to send a data configuration instruction to the UE; the data allocation instruction indicates the number M of first code channels included in the first RB for transmitting the data portion.

with reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the third processing module is further configured to demodulate the data portion according to the received DMRS portion.

The eighth aspect of the present invention further provides a base station, which may include:

a fourth sending module, configured to send downlink data information to the UE;

the fourth processing module is used for determining a Physical Uplink Control Channel (PUCCH) resource, wherein the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information sent by UE and a demodulation reference signal (DMRS) part used for demodulating the data part;

And a fourth receiving module, configured to receive the uplink control information on the PUCCH resource.

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, the fourth sending module is further configured to issue a DMRS configuration instruction to the UE, so that the UE configures second RBs respectively occupied by the first DMRS part and the second DMRS part according to the DMRS configuration instruction.

according to the technical scheme, the embodiment of the invention has the following advantages: in the embodiment of the invention, the PUCCH resource is used for carrying uplink control information, the uplink control information comprises a data part of feedback information corresponding to the downlink data information and a DMRS part for demodulating the data part, when a single UE transmits the data part of the feedback information, at least two first code channels in a first RB occupied by the PUCCH resource can be used for transmitting the data part of the feedback information, namely, a plurality of PF3 are arranged on the single first RB, and the capacity of transmitting the feedback information on the single RB is improved by increasing the number of code channels for transmitting the data part of the feedback information in the single first RB under the condition of not changing PF3 in the existing LTE system.

drawings

Fig. 1 is a schematic structural diagram of a CA system in LTE technology;

FIG. 2 is a channel structure diagram of PF 3;

Fig. 3 is a diagram of a method for transmitting uplink control information according to an embodiment of the present invention;

Fig. 3a is a diagram of another embodiment of a method for transmitting uplink control information according to an embodiment of the present invention;

Fig. 4 is a diagram of an embodiment of a method for receiving uplink control information according to an embodiment of the present invention;

Fig. 4a is a diagram of another embodiment of a method for transmitting uplink control information according to an embodiment of the present invention;

Fig. 5 is a diagram of an embodiment of a method for receiving uplink control information according to an embodiment of the present invention;

fig. 6 is a diagram of an embodiment of a method for receiving uplink control information according to an embodiment of the present invention;

FIG. 7 is a diagram of one embodiment of a user equipment of an embodiment of the present invention;

FIG. 8 is a diagram of one embodiment of a user equipment of an embodiment of the present invention;

FIG. 9 is a diagram of one embodiment of a base station of an embodiment of the present invention;

FIG. 10 is a diagram of one embodiment of a base station of an embodiment of the present invention;

FIG. 11 is a diagram of one embodiment of a user equipment of an embodiment of the present invention;

Fig. 12 is a diagram of one embodiment of a base station of an embodiment of the present invention.

Detailed Description

the embodiment of the invention provides a method for sending uplink control information, which is used for solving the problem that the transmission capacity of a data part supported by a single UE cannot be met by the current PF3 structure.

in order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The following are detailed below.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein.

With the continuous evolution of the LTE technology, more and more feedback information needs to be transmitted, please refer to fig. 1, where fig. 1 is a schematic structural diagram of a CA system in the LTE technology, where the CA system includes a first UE and a second UE, and information may be transmitted between the UEs and the base station through a carrier group, for example, information may be transmitted between the first UE and the base station through a carrier group f1, or information may be transmitted between the second UE and the base station through a carrier group f1 and a carrier group f 2. In CA, a plurality of carriers transmitted by a base station are transmitted synchronously in time, and a UE can detect a Physical Downlink Control Channel (PDCCH) and a corresponding PDSCH for scheduling each carrier, respectively, where a specific detection process of each carrier is similar to the single carrier case described above.

Specifically, the channel structure of PF3 occupies time-frequency resources of one RB in two slots of one subframe, and adopts a DFT-S-OFDM transmission method, and specifically, feedback information (for example, 20ACK/NACK bit size) is subjected to channel coding and rate matching to obtain 48 coded bits, the coded feedback information is subjected to scrambling processing, the feedback information after the interference is modulated to 24 Quadrature Phase Shift Keying (QPSK) symbols, and the 24 QPSK symbols are placed in two slots of one subframe respectively.

the QPSK is divided into an absolute phase shift mode and a relative phase shift mode, and the absolute phase shift mode has the phase ambiguity problem, so that the relative phase shift mode DQPSK is mainly adopted in practice, is widely applied to wireless communication at present and becomes an important modulation and demodulation mode in modern communication; there are 12 QPSK symbols per slot, specifically placed on 12 consecutive subcarriers on one time domain symbol of the slot, i.e. 12 subcarriers on one time domain symbol in one RB are occupied.

Secondly, for each timeslot, Orthogonal Code mask (OCC Orthogonal Code) spreading is performed in the time domain, the OCC spreading Code length is generally 5, after spreading, 5 time domain symbols (one time domain symbol 12 subcarriers) in one RB are occupied, different UEs can perform Code division multiplexing on one RB through different OCC spreading Code sequences, and the remaining two time domain symbols are used to carry a demodulation reference signal DMRS.

In addition, for special cases (for example, in the case of sending Sounding Reference Signal (SRS Sounding Reference Signal) in the second slot), the spreading code length may be 4. After spreading, a cell-specific cyclic shift is performed on the 12 modulation symbols on each time domain symbol in the frequency domain, where the cyclic shift is a cyclic shift specific to each modulation symbol, that is, the cyclic shift on each time domain symbol may be different, but the cyclic shift of all UEs in the cell on each time domain symbol is the same. And finally, performing DFT precoding and IFFT, and then sending to the base station.

As can be seen from the above, with the above channel structure of PF3, each UE can only use one orthogonal code sequence on one RB, that is, only one time domain symbol can be used in one slot to transmit feedback information, and since the capacity of one time domain symbol transmission is limited, when the bit number of the original feedback information is not more than 20 bits, the feedback information can be smoothly transmitted through one time domain symbol, and when the capacity of the feedback information is more than 20 bits, the transmission capacity of one time domain symbol is exceeded, so that the PF3 capacity cannot meet the requirement.

In order to solve the above problem, when the original feedback information is greater than 20 bits, the capacity of the current PF3 needs to be expanded, and a specific expansion manner may be implemented by using the method for transmitting uplink control information according to the embodiment of the present invention, which is described below.

Referring to fig. 3, fig. 3 is a diagram of a method for sending uplink control information according to an embodiment of the present invention, and as shown in fig. 3, an embodiment of the present invention provides a method for sending uplink control information, which may include the following:

101. And the UE receives downlink data information sent by the base station.

in the LTE network, communication is performed between a base station and a UE, and the UE receives downlink data information sent by the base station.

102. the UE determines PUCCH resources.

the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information and a DMRS part used for demodulating the data part; the first RB occupied by the PUCCH resource comprises M first code channels used for transmitting a data part and N second code channels used for transmitting a DMRS part, each first code channel corresponds to an orthogonal code sequence, each second code channel corresponds to a DMRS sequence, wherein N is less than M, M and N are integers, M is more than 1, and N is more than or equal to 1.

it should be noted that, the mode for the UE to determine the PUCCH resource is implemented by receiving a resource configuration instruction of the base station, that is, after the base station sends downlink data information, the base station may send a resource configuration instruction to the UE, where the resource configuration instruction can indicate which PUCCH resources the UE uses to send uplink control information, and the UE may determine the PUCCH resource according to the resource configuration instruction.

it should be noted that the timing for the base station to transmit the resource allocation command is not limited to be after the downlink data information is transmitted, but may be transmitted simultaneously with the downlink data information, and the timing is not limited to be specific.

Alternatively, N is equal to 1.

however, for most of the UEs using the LTE system at present, only one antenna is usually used for data transmission, so that only one second channel of the first RB is used for transmitting the DMRS part, that is, only one DMRS sequence is located in the first RB, and when the DMRS sequence is transmitted on the PUCCH resource, only one DMRS sequence is transmitted.

it should be noted that, for the LTE system, when one time domain symbol is transmitted, it is formed by overlapping a plurality of independently modulated subcarrier signals, and when the phases of the subcarriers are the same or close to each other, the overlapped signal is modulated by the same initial phase signal, so as to generate a larger instantaneous Power Peak, thereby bringing a higher Peak to Average Power Ratio (PAPR), i.e. the Ratio of the Peak of the signal to the Average Power of the signal. Since the dynamic range of a general power amplifier is limited, a signal with a large PAPR easily enters a nonlinear region of the power amplifier, resulting in nonlinear distortion of the signal, causing significant spectrum spreading interference and in-band signal distortion, resulting in severe performance degradation of the entire LTE system. Since the present embodiment is equivalent to arranging a plurality of PFs 3 on one first RB and setting sequences of N DMRSs, a sequence using a plurality of DMRSs may have the problem of high PAPR as described above.

Therefore, only one sequence of the DMRS is transmitted, so that the transmission power can be added to the sequence without distributing power among a plurality of sequences, the performance of channel estimation is greatly improved compared with the plurality of DMRS sequences, and in addition, the PAPR is much lower compared with the sequence for transmitting the plurality of DMRSs because only one sequence of the DMRS is transmitted, which is equivalent to the characteristic of low PAPR of the DMRS part of the basic PF3, and the power efficiency is kept.

it should be noted that, the above-mentioned one first RB adopts a plurality of PFs 3, and may also be extended to a case of a plurality of first RBs, in which case, each of the plurality of first RBs may have a plurality of PFs 3.

It should be noted that the number of DMRS sequences is smaller than the number of orthogonal code sequences in the data portion, that is, N < M, although N may also be greater than 1, for example, when N is equal to 2, a first RB includes four first code channels and two second code channels, that is, sequences with four orthogonal code sequences and two DMRS, the four orthogonal code sequences are spread by using different spreading codes, and the sequences of two DMRS may be generated by using two cyclic shifts of a root sequence, so that the two-antenna transmission may be supported, that is, one antenna corresponds to one DMRS sequence.

It should be noted that, the configuration of the corresponding relationship between the Downlink data information and the data portion of the feedback information may be based on different TDD Uplink and Downlink configurations in the LTE system, and for the TDD system, the Uplink and the Downlink are transmitted at different times of the same carrier, specifically, one carrier includes a Downlink subframe, an Uplink subframe, and a special subframe, where the special subframe includes three portions, namely, a Downlink Pilot Time Slot (DwPTS), a Guard Time (GP), and an Uplink Pilot Time Slot (UpPTS), where the GP is mainly used for compensating for the device switching Time from the Downlink to the Uplink and the propagation delay. In addition, downlink data can be transmitted in DwPTS, but PUSCH cannot be transmitted in UpPTS, so the special subframe can also be regarded as a downlink subframe. LTE currently supports 7 different TDD uplink and downlink configurations, as shown in table 1.

TABLE 1

Wherein D represents a downlink subframe, S represents a special subframe, and U represents an uplink subframe.

For the downlink data information, for example, after receiving the PDSCH, the UE feeds back ACK on the PUCCH if the PDSCH is received correctly, and feeds back NACK on the PUCCH if the PDSCH is not received correctly. For FDD, the UE feeds back ACK/NACK in subframe n after receiving PDSCH in subframe n-4; for TDD, the timing relationship of PDSCH receiving feedback information corresponding thereto is shown in table 2,

TABLE 2

wherein, the subframe with a reference number is an uplink subframe n for feeding back feedback information, and the number with a reference number indicates a data portion of feedback information corresponding to a PDSCH in a downlink subframe set where n-k needs to be fed back in the uplink subframe n, for example, a set {7, 6} in a subframe n ═ 2 in an uplink and downlink configuration 1 indicates a data portion of feedback information corresponding to a PDSCH in two downlink subframes, that is, an uplink subframe n ═ 2 for feeding back n-7 and n-6, specifically n-7 is a downlink subframe 5, n-6 is a downlink subframe 6, specifically read from uplink and downlink configuration 1 in table 1, since n-7 is-5, that is, a fifth subframe from the rightmost side to the left is a downlink subframe 5, and since n-6 is-4, that is, a fourth subframe from the rightmost side to the left is a downlink subframe 6, the special subframe is referred to as a downlink subframe.

Optionally, the first code channel and the second code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

In order to facilitate correct identification of the first code channel and the second code channel, the first code channel and the second code channel may be identified correspondingly, for example, time domain orthogonal codes or frequency domain orthogonal codes may be used to identify the two code channels, for example, the first code channel is identified by the time domain orthogonal codes, and the second code channel is identified by the frequency domain orthogonal codes.

103. The UE transmits uplink control information on PUCCH resources.

Therefore, in the embodiment of the present invention, the PUCCH resource is used to carry uplink control information, the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a DMRS portion for demodulating the data portion, when a single UE transmits the data portion of the feedback information, at least two first code channels in the first RB occupied by the PUCCH resource may be used to transmit the data portion of the feedback information, that is, a plurality of PFs 3 are arranged on the single first RB, and the capacity of transmitting the feedback information on the single RB is increased by increasing the number of code channels for transmitting the data portion of the feedback information in the single first RB without changing PF3 in the existing LTE system.

It should be noted that the UE may determine the number M of the first code channels in various ways, which may be different according to different practical application scenarios.

For example, if the required capacity of the UE for the feedback information is fixed, that is, within a range of a base station, the required capacities of a plurality of UEs for the feedback information are all the same, the number M of the first code channels may be configured in advance, and specifically, the following manner may be adopted, please refer to fig. 3a, where fig. 3a is a diagram of another embodiment of a method for sending uplink control information according to an embodiment of the present invention, and on the basis of fig. 3, as an optional step, the sending method may further include:

102a, receiving a data configuration instruction sent by a base station;

102b, the UE determines the number M of the first code channels according to the data configuration instruction.

Therefore, a data configuration instruction can be generated at the base station, the base station can send the data configuration instruction to the UE, and the UE can determine the number M of the first code channels according to the instruction of the data configuration instruction after receiving the configuration instruction sent by the base station.

For another example, if the required capacity of the feedback information by the UE is variable, or the required capacities of the feedback information by the UEs are different, in this case, as an alternative, the sending method may further include:

102c, the UE performs channel coding on the data part.

Wherein, the UE determines the bit number of the data part of the original feedback information, and performs channel coding on the data part of the original feedback information.

102d, determining the number M of first code channels occupied by the data part after channel coding according to the bit number of the feedback information before channel coding.

the number M of the first code channels determines the number of bits of the feedback information that can be transmitted on one first RB, that is, the capacity of transmission of the feedback information on a single first RB, and therefore, before sending the uplink control information, the number M of the first code channels needs to be determined, where the number M of the first code channels that need to be occupied by the data part after channel coding is determined according to the number of bits of the feedback information before channel coding, which is a dynamically adjustable manner, that is, after analyzing the feedback information, the number M of the first code channels that need to transmit the feedback information is determined, and thus, the realizability of the scheme of the embodiment of the present invention can be improved.

it should be noted that before the UE performs channel coding on the data portion, CA configuration and downlink data scheduling may be performed first, where the multiple carriers may be FDD or TDD, and taking 10 TDD carriers configured with the same uplink and downlink configuration 2 as an example, according to the TDD uplink and downlink subframe configurations in tables 1 and 2 and the time sequence relationship between the downlink data and the data portion of the feedback information, the uplink subframe 2 of the main carrier needs to feed back the data portion corresponding to the first code channel in the downlink subframes 4, 5, 6, and 8 on the 10 carriers at most. The first code channels are respectively scheduled by independent control channels, or scheduled by a unified control channel, or a combination of the two, for example, a plurality of control channels, each of which is scheduled by a data channel in a downlink subframe. After acquiring the carrier configuration and downlink data scheduling of the base station on the configured carrier, based on the timing relationship specified in table 2, the UE determines the number of bits of the data portion of the original feedback information that needs to be fed back in the uplink subframe (such as the uplink subframe 2 described above), where the bits of the data portion of the original feedback information are bit streams of 1 or 0, where "1" represents an ACK that the downlink data channel is correctly received, and "0" represents a NACK that the downlink data channel is not correctly received. The original ACK/NACK bit number here is generally determined by a configured carrier set, for example, based on downlink subframes 4, 5, 6, and 8 on each carrier on the above 10 configured carriers, then the bit number of the data portion of the original feedback information determined on uplink subframe 2 is 4 × 10 — 40. After the number of bits of the data portion of the original feedback information is determined, the data portion of the feedback information is channel coded.

the channel coding may be of various types, such as linear block coding, convolutional coding, or Turbo coding. If linear block coding is used, for example, Reed Muller (RM) code, cyclic redundancy check CRC does not need to be added before coding in general, and if convolutional code or Turbo is used, CRC may be added before coding, or certainly, CRC may not be added, and is not limited specifically according to actual needs.

it should be noted that, before step 103, the data portion and the DMRS portion may also be processed correspondingly.

optionally, the sending method may further include:

102e, the UE uses different spreading code sequences to perform independent spreading on the data part on each of the M first code channels, respectively.

in order to make the orthogonal code sequences transmitted in the M first code channels orthogonal, that is, not interfere with each other, the data portion on each first code channel may be spread independently, so that M different orthogonal code sequences that are orthogonal to each other are obtained after spreading, and the M orthogonal code sequences may be transmitted in the M first code channels, respectively.

Therefore, by independently spreading the data part on each first code channel, the data part transmitted in each first code channel (i.e. the generated orthogonal code sequence part) can be orthogonal to each other, so that when the UE transmits the data part of the feedback information by using a plurality of first code channels, the transmission performance is not affected by the interference caused by the orthogonal code sequences.

It should be noted that before performing the spread spectrum operation, the data portion of the feedback information is also constellation-modulated, and considering that the performance requirement of the data portion is higher than that of the data portion, a relatively robust QPSK modulation is generally adopted, that is, one QPSK modulation symbol is generated for every two coded bits. Of course, other modulation schemes are not excluded, such as 16QAM or even 64QAM, and may be applied in the scenarios where the channel condition of the UE is good and the signal-to-noise ratio is high. In this embodiment, the bits of the data part of 40 original feedback information need to be transmitted by dual PF3 of a single first RB, so the number of bits after coding and/or rate matching is 96, after QPSK modulation, 48 QPSK symbols are obtained, the 48 QPSK modulation symbols are divided into two groups, and are respectively transmitted in two slots of a subframe, specifically, 24 modulation symbols divided into the first group are mapped on 12 subcarriers in one first RB in the first slot, and two modulation symbols are mapped on each subcarrier, and are subsequently transmitted on two first code blades by orthogonal code sequence spreading; the mapping manner of the second group in the second time slot is similar to that of the first group, and is not described in detail.

It can be appreciated that after constellation modulation, the UE performs a spreading operation on each modulation symbol in each set of 24 modulation symbols. Specifically, each modulation symbol in the first group of 24 modulation symbols is spread by using a first orthogonal code with a first code length L1, where the general L1 is 5; similar spreading is performed for the second set of 24 modulation symbols, L2 may be 5 or 4 using a second orthogonal code of a second code length L2. The first and second orthogonal code sequences are shown in table 3,

It should be noted that other types of orthogonal code sequences may be used for spreading, as long as the orthogonal code sequences can be spread without interference, and the specific orthogonal code sequence is not limited.

Optionally, the sending method may further include:

102f, the UE performs independent DFT on the data part on each first code channel in the M first code channels.

In order to convert the data portion transmitted on the first code channel from the time domain signal to the frequency domain signal, a DFT operation needs to be performed on the data portion, and since there are multiple first code channels on one first RB and the data portion transmitted in each first code channel is relatively independent, an independent DFT needs to be performed on the data portion on each first code channel.

after step 102e, the UE performs DFT on each of the L1 sets of modulation symbols after cyclic shift, and performs DFT on each of the L2 sets of modulation symbols after cyclic shift, that is, a uniform DFT operation with a length K × 12 is performed on one time domain symbol.

It should be noted that after the DFT operation is completed, L1 sets of DFT modulated symbols are mapped to L1 time domain symbols in the first slot, and L2 sets of DFT modulated symbols are mapped to L2 time domain symbols in the second slot, where the code channels identified by multiple orthogonal codes are mapped to the same RB. And then performing Inverse Fast Fourier Transform (IFFT) operation on the frequency domain signal on each mapped time domain symbol, and finally sending, by the UE, the UCI modulation symbol after IFFT operation to the base station in an uplink subframe.

the above describes a method for transmitting uplink control information according to an embodiment of the present invention, and the following describes a method for receiving uplink control information according to the embodiment.

referring to fig. 4, fig. 4 is a diagram of an embodiment of a method for receiving uplink control information according to an embodiment of the present invention, and as shown in fig. 4, an embodiment of the present invention provides a method for receiving uplink control information, which may include the following:

201. and the UE receives downlink data information sent by the base station.

202. The UE determines PUCCH resources.

the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information and a DMRS part used for demodulating the data part; the PUCCH resources occupy K second RBs which are continuous, each second RB comprises a third code channel used for transmitting a data part, each third code channel corresponds to one orthogonal code sequence, the DMRS part comprises a first DMRS part and a second DMRS part, frequency domains of the first DMRS part and the second DMRS part are not overlapped, the first DMRS part occupies K1 second RBs in K1 second RBs, each RB in the K1 second RBs occupied by the first DMRS part comprises a fourth code channel used for transmitting the first DMRS part, each fourth code channel corresponds to a first sequence of the DMRS, the second DMRS part occupies K1 second DMRS RBs, the K-K1 second RBs occupied by the second DMRS part correspond to a fifth code channel used for transmitting the second DMRS part, the fifth code channel corresponds to a second sequence of the DMRS, wherein K is more than or less than 0 and less than or equal to K1, K and K1 are integers, and K is more than 1.

it should be noted that the manner of determining the PUCCH resource by the UE is similar to the manner of determining the PUCCH resource in the embodiment shown in fig. 3, and is not described herein again.

Optionally, the data portions transmitted in the third code channel within the K1 second RBs including the fourth code channel all adopt frequency domain cyclic shift.

The K1 second RBs include fourth code channels, each fourth code channel corresponds to a first sequence of a DMRS, and the first sequences in each fourth code channel are independently generated, so that in order to ensure that the code channels are matched similarly to a cell-specific frequency domain cyclic shift, that is, a signal transmitted is orthogonal to a signal transmitted by a UE that only supports the existing PF3 (hereinafter, referred to as basic PF3) in a cell, and thus do not cause interference with each other, it is necessary to perform a frequency domain cyclic shift operation on data portions transmitted in the third code channels according to the cell-specific frequency domain cyclic shift.

optionally, the data portion transmitted in the third code channel within the K-K1 second RBs corresponding to the fifth code channel is not subjected to frequency domain cyclic shift.

the K-K1 second RBs correspond to a fifth code channel, the fifth code channel corresponds to a first sequence of a DMRS, and the first sequence is a long DMRS sequence, so that the first sequence cannot be matched with a cell-specific frequency domain cyclic shift, and cannot be orthogonal to a signal of the basic PF3, and therefore, performing a frequency domain cyclic shift matched with a cell-specific frequency domain cyclic shift cannot also perform an orthogonal function, and therefore, a data portion transmitted in a third code channel in the K-K1 second RBs is not subjected to a frequency domain cyclic shift.

it should be noted that, for the sequences of DMRS, ZC (Zadoff-Chu) sequences may be adopted, and considering that a repeated DMRS sequence may cause a significant PAPR improvement if transmitted in each second RB, the DMRS portion may be divided into a first DMRS portion and a second DMRS portion, where the first DMRS portion is formed by splicing K1 short first sequences (one first sequence for each fourth code channel), that is, the DMRS first sequence is separately generated for the K1 second RBs in each second RB, and the first sequence and the DMRS sequence of the basic PF3 can orthogonally coexist, and the second DMRS portion is a long second sequence (a second sequence corresponding to a fifth code channel of all K-K1 second RBs), that is, a long second sequence is generated for the remaining K-K1 second RBs according to the length of the second RBs with the length of the length (K-K1), that is, the length of the (K-K1) × 12, and therefore, the peak-to-average ratio is reduced by reducing repeated DMRSs, the first DMRS part and the second DMRS part can determine whether to have the first DMRS part and/or the second DMRS part according to the value of K1, when K1 is 0, the DMRS part only comprises the second DMRS part, namely the DMRS part is only composed of one long second sequence, and when K1 is K, the DMRS part only comprises the first DMRS part, namely the DMRS part is formed by splicing K short first sequences.

optionally, at least two of the K1 first sequences use the same or different root sequences.

optionally, at least two of the K1 first sequences use the same root sequence and different cyclic shifts.

wherein the DMRS on each of the K1 second RBs may use different cyclic shifts of the same root sequence or may use different root sequences on each second RB, and the PAPR obtained by the test is significantly reduced compared to the repeated DMRS sequence on each second RB.

It can be understood that, since the correlation between different root sequences is much lower than that of different shifted sequences of the same root, different root sequences may get lower PAPR but at the cost of not being able to orthogonally coexist with the sequence of DMRS of the basic PF3 of the own cell and also possibly colliding with the sequence of DMRS of the neighbor cell to cause inter-cell PUCCH channel interference. In this case, the root sequence information used by each of the neighboring cells may be exchanged to avoid using the same root sequence.

For example, assuming a single PF3 of 4 RBs, wherein different root sequences are used to generate DMRSs over 2 RBs, and at least one of the different root sequences is different from the root sequence used by the basic PF3 of the present cell, to reduce PAPR; and other 2 RBs adopt different cyclic shifts of the same root sequence, and the sequence of the same root sequence is the same as the root sequence used by the basic PF3 of the cell, so that the part of RBs can orthogonally coexist with the basic PF3 of the cell.

Optionally, the third code channel, the fourth code channel, and the fifth code channel may be respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

In order to correctly identify the third code channel, the fourth code channel, and the fifth code, the first code channel and the second code channel may be identified correspondingly, for example, the two code channels may be identified by a time domain orthogonal code or a frequency domain orthogonal code, for example, the first code channel is identified by a time domain orthogonal code, and the second code channel is identified by a frequency domain orthogonal code.

203. The UE transmits uplink control information on PUCCH resources.

therefore, in the embodiment of the present invention, the PUCCH resource is used to carry uplink control information, where the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a DMRS portion of a demodulation data portion, and when a single UE transmits the data portion of the feedback information, the PUCCH resource may occupy multiple second RBs, that is, the multiple second RBs may correspond to one PF3, so that the data portion of the feedback information may be transmitted on a third channel on different second RBs, that is, by transmitting the data portion of the feedback information on the third channels of the multiple second RBs, the capacity of transmitting the feedback information is increased by increasing the third channel on which the data portion of the feedback information is transmitted.

It should be noted that, the number K1 of the second RB occupied by the first DMRS part and the number K-K1 of the second RB occupied by the second DMRS part may be set, specifically, refer to fig. 4a in the following manner, where fig. 4a is a diagram of another embodiment of a method for transmitting uplink control information according to an embodiment of the present invention, and on the basis of fig. 4, as an alternative, the method may further include:

202a, the UE receives a DMRS configuration instruction issued by the base station.

In order to determine the number K1 of the second RBs occupied by the first DMRS part and the number K-K1 of the second RBs occupied by the second DMRS part, the UE may receive a DMRS configuration instruction issued by the base station and then perform setting.

202b, the UE determines that the first DMRS part occupies K1 second RBs according to the DMRS configuration instruction, and the second DMRS part occupies K-K1 second RBs.

After receiving the DMRS configuration instruction, the UE determines the number K1 of the second RB occupied by the first DMRS part and the number K-K1 of the second RB occupied by the second DMRS part according to the instruction.

Optionally, the sending method may further include:

203c, the UE carries out uniform DFT on the data parts carried on the third code channels of the K second RBs.

Wherein, in order to convert the data portion transmitted on the third code channel from the time domain signal to the frequency domain signal, the DFT operation needs to be performed on the data portion, and since one second RB has one third code channel and the data portion transmitted in each second RB is relatively independent, the DFT operation needs to be performed on the data portion on each second RB respectively.

It should be noted that before the DFT operation is performed, constellation modulation is also performed on the data portion of the feedback information, and a specific modulation manner is similar to the constellation modulation manner of the embodiment shown in fig. 3, and is not described here again. After constellation modulation, the UE performs a spreading operation on each modulation symbol in each set of 24 modulation symbols. Specifically, each modulation symbol in the first group of 24 modulation symbols is spread by using a first orthogonal code with a first code length L1, where the general L1 is 5; similar spreading is performed for the second set of 24 modulation symbols, L2 may be 5 or 4 using a second orthogonal code of a second code length L2. After spreading, L1 groups of spread modulation symbols and L2 groups of spread modulation symbols are obtained, wherein the spreading code sequence on each second RB may be the same or different. The DFT operation is performed on these modulation symbols after the spreading is completed.

The method for transmitting uplink control information according to the embodiment of the present invention is described above, and the method for receiving uplink control information according to the embodiment of the present invention is described below.

Referring to fig. 5, fig. 5 is a diagram of an embodiment of a method for receiving uplink control information according to an embodiment of the present invention, as shown in fig. 5, an embodiment of the present invention provides a method for receiving uplink control information, which may include the following:

301. And the base station sends downlink data information to the user equipment UE.

The uplink control information is generated according to the downlink data information, and after the base station sends the downlink data information to the UE, the UE mall uplink control information is sent to the base station.

302. And the base station determines the physical uplink control channel PUCCH resources.

the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information sent by the UE according to downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

It should be noted that the base station determines the PUCCH resource for two purposes, one is to generate a resource configuration instruction and send the resource configuration instruction to the UE, so that the UE can determine the PUCCH resource carrying uplink control information, that is, the base station can send a resource configuration instruction to the UE after sending downlink data information, the resource configuration instruction can instruct the UE to use which PUCCH resources to send uplink control information, the UE can determine the PUCCH resources according to the resource configuration instruction, and the other is to receive the uplink control information sent by the UE on the PUCCH resources by the base station after determining the PUCCH resources.

It should be noted that the base station may determine the PUCCH resource according to an actual situation, may dynamically determine the PUCCH resource according to a load condition of the PUCCH resource, for example, determine the PUCCH resource with a lower load to carry the uplink control information, or may also determine the PUCCH resource according to an interference condition of the PUCCH resource, for example, analyze the interference condition of the PUCCH resource, and select the PUCCH resource with a smaller interference condition to carry the uplink control information.

303. the base station receives uplink control information on PUCCH resources.

Therefore, in the embodiment of the present invention, the PUCCH resource is used to carry uplink control information, the uplink control information includes a data portion of feedback information corresponding to downlink data information transmitted by the UE and a DMRS portion for demodulating the data portion, when a single UE transmits the uplink control information to the base station, at least two first code channels in the first RB occupied by the PUCCH resource may be used to transmit the data portion of the feedback information, that is, a plurality of PFs 3 are arranged on the single first RB, and the capacity of transmitting the feedback information on the single RB is increased by increasing the number of code channels for transmitting the data portion of the feedback information in the single first RB without changing PF3 in the existing LTE system.

optionally, the receiving method may further include:

304. and the base station sends a data configuration instruction to the UE.

Wherein, the data configuration instruction indicates the number M of first code channels included in the first RB for transmitting the data part.

It is understood that there is no absolute order relationship between step 204 and steps 201 to 203.

it should be noted that, in the receiving method, in order to enable the UE to determine the number M of the first code channels, a data configuration instruction may be sent to the UE, where the data configuration instruction indicates that the number M of the first code channels used for transmitting the data portion is included in the first RB, so that the UE can obtain the number M of the first code channels from the data configuration instruction after receiving the data configuration instruction, thereby improving the scalability of the scheme according to the embodiment of the present invention.

Optionally, the receiving method may further include:

305. the base station demodulates the data portion according to the received DMRS portion.

after receiving the uplink control information sent by the UE, the base station demodulates the data portion of the uplink control information through the DMRS portion in the uplink control information, thereby obtaining actual information of the data portion.

It is understood that there is no necessarily sequential relationship between steps 304 and 305 and steps 301 to 303.

the uplink control information transmitting method and receiving method according to the embodiments of the present invention are described above, and the uplink control information transmitting method and receiving method according to the embodiments of the present invention are described below with reference to a specific uplink control information transmitting method and receiving method according to the embodiments of the present invention.

Referring to fig. 6, fig. 6 is a diagram of an embodiment of a method for receiving uplink control information according to an embodiment of the present invention, and as shown in fig. 6, an embodiment of the present invention provides a method for receiving uplink control information, which may include the following:

401. And the base station sends downlink data information to the user equipment UE.

In the LTE network, a base station and a UE communicate with each other, and the base station transmits downlink data information to the UE.

402. the base station determines the PUCCH resources.

The PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information sent by UE and a demodulation reference signal (DMRS) part for demodulating the data part;

It should be noted that the purpose of determining the PUCCH resource by the base station is similar to the purpose of determining the PUCCH resource in the embodiment shown in fig. 5, and details are not repeated here.

It should be noted that the base station may determine the PUCCH resource according to an actual situation, which is similar to the determination of the PUCCH resource in the embodiment shown in fig. 5 and is not described here again.

It should be noted that the DMRS sequence generation method is similar to that in the embodiment shown in fig. 4, and is not described here again.

403. the base station receives uplink control information on PUCCH resources.

Therefore, in the embodiment of the present invention, the PUCCH resource is used to carry uplink control information, where the uplink control information includes a data portion of feedback information corresponding to downlink data information and a DMRS portion of a demodulation data portion, which are sent by a UE, and when a single UE transmits the data portion of the feedback information, the PUCCH resource may occupy multiple second RBs, that is, multiple second RBs may correspond to one PF3, so that the data portion of the feedback information may be transmitted on a third channel of different second RBs, that is, by transmitting the data portion of the feedback information on the third channels of the multiple second RBs, respectively, the capacity of transmitting the feedback information is increased by increasing the third channel on which the data portion of the feedback information is transmitted.

It should be noted that the number K1 of the second RBs occupied by the first DMRS part and the number K-K1 of the second RBs occupied by the second DMRS part may be set, and specifically, the following manner may be adopted.

Optionally, the receiving method may further include:

402a, the base station issues a DMRS configuration instruction to the UE, so that the UE configures second RBs respectively occupied by the first DMRS part and the second DMRS part according to the DMRS configuration instruction.

in order to configure the number of the second RBs respectively occupied by the first part and the second part of the DMRS, the base station further sends a DMRS configuration instruction to the UE, and after receiving the DMRS configuration instruction, the UE determines, according to the instruction, the number K1 of the second RBs occupied by the first DMRS part and the number K-K1 of the second RB occupied by the second DMRS part, thereby improving the realizability of the scheme of the embodiment of the invention.

it is understood that there is no necessarily sequential relationship between step 402a and steps 401 through 403.

In the following, for the two ways, one is to use a plurality of PFs 3 (abbreviated as single RB multiple PF3) on one first RB, and the other is to extend one PF3 to a plurality of second RBs (abbreviated as multiple RB single PF3), the peak-to-average ratio of the two ways to the basic PF3 was tested, and the specific test results are shown in table 4 below,

TABLE 4

Wherein, the mechanism (a) is the mechanism of basic PF3, namely single RB single PF 3;

Mechanism (b) is a 2 RB multiple PF3 mechanism;

Mechanism (c) is a mechanism of 2 RB single PF 3;

Mechanism (d) is a 3 RB multiple PF3 mechanism.

it can be seen that mechanism (a) is the PAPR of the basic PF 3; mechanisms (b) and (d) multiple PF3 schemes of 2 RBs and 3 RBs, respectively. It can be seen that, since the data part employs a plurality of orthogonal code sequences, the PAPR of the data part of the multi PF3 of 2 RBs is improved by about 1.2dB compared to the basic PF3, and the PAPR of the data part of the multi PF3 of 3 RBs is improved by about 1.8dB compared to the basic PF 3; and the PAPR of the multi-PF 3 of 2 RBs based on the repeated DMRS symbols is greatly improved by 3dB compared with that of the basic PF3, and the PAPR of the multi-PF 3 of 3 RBs based on the repeated DMRS symbols is greatly improved by 4.7dB compared with that of the basic PF 3.

the sending method and the receiving method of the uplink control information according to the embodiments of the present invention are introduced above, and the user equipment according to the embodiments of the present invention is introduced below.

Referring to fig. 7, fig. 7 is a diagram of a ue according to an embodiment of the present invention, and as shown in fig. 7, a ue according to an embodiment of the present invention may include:

A first receiving module 501, configured to receive downlink data information sent by a base station;

A first processing module 502, configured to determine a physical uplink control channel PUCCH resource, where the PUCCH resource is used to carry uplink control information, and the uplink control information includes a data portion of feedback information corresponding to downlink data information and a demodulation reference signal DMRS portion used to demodulate the data portion;

a first sending module 503, configured to send uplink control information on the PUCCH resource.

It can be seen that, after receiving the downlink data information sent by the base station in the embodiment of the present invention, the first receiving module 501, a PUCCH resource for carrying uplink control information including a data portion of feedback information corresponding to downlink data information and a DMRS portion of a demodulation data portion is determined by the first processing module 502, in transmitting the data portion of the feedback information, at least two first code channels within a first RB occupied by PUCCH resources may be employed for transmitting the data portion of the feedback information, the uplink control information is then transmitted on the PUCCH resource by the first transmitting module 503, i.e., equivalent to arranging a plurality of PFs 3 on a single first RB, without changing the PF3 in the existing LTE system, the capacity of feedback information transmission on a single RB is increased by increasing the number of code channels for transmitting the data portion of the feedback information within a single first RB.

it should be noted that the way that the first processing module 502 determines the PUCCH resource is implemented by receiving a resource configuration instruction of the base station, that is, after the base station sends downlink data information, the base station may send a resource configuration instruction to the first processing module 501, where the resource configuration instruction can instruct the first sending module 503 which PUCCH resources are used to send uplink control information, and the first processing module 502 may determine the PUCCH resources according to the resource configuration instruction.

alternatively, N is equal to 1.

the case where N is equal to 1 is similar to the case where N is equal to 1 in the embodiment shown in fig. 3, and is not described herein again.

Optionally, the first processing module 502 is further configured to perform an independent discrete fourier transform DFT on the data portion on each of the M first code channels.

In order to convert the data portion transmitted on the first code channel from the time domain signal to the frequency domain signal, the data portion needs to be DFT-processed by the first processing module 502, and since there are multiple first code channels on one first RB and the data portion transmitted in each first code channel is relatively independent, the data portion on each first code channel needs to be DFT-independently.

optionally, the first processing module 502 is configured to separately spread the data portion on each of the M first code channels by using different spreading code sequences.

In order to make the orthogonal code sequences transmitted in the M first code channels orthogonal, that is, not to interfere with each other, the first processing module 502 may perform independent spreading on the data portion on each first code channel, so as to obtain M different orthogonal code sequences that are orthogonal to each other after spreading, where the M orthogonal code sequences may be transmitted in the M first code channels, respectively.

it can be seen that, by using the first processing module 502 to perform independent spreading on the data part on each first code channel, the data part transmitted in each first code channel (i.e. the generated orthogonal code sequence part) can be orthogonal to each other, so that when the UE transmits the data part of the feedback information by using multiple first code channels, the UE does not affect the transmission performance due to interference caused by the orthogonal code sequences.

it should be noted that, if the required capacity of the UE for the feedback information is fixed, that is, within a range of one base station, the required capacities of the multiple UEs for the feedback information are all the same, the number M of the first code channels may be configured in advance, and optionally, the first receiving module 501 is further configured to receive a data configuration instruction sent by the base station;

the first processing module 502 is further configured to determine the number M of the first code channels according to the data configuration instruction.

Therefore, a data configuration instruction can be generated at the base station, the base station can send the data configuration instruction to the first receiving module 501, after the first receiving module 501 receives the configuration instruction sent by the base station, the first processing module 502 can determine the number M of the first code channels according to the instruction of the data configuration instruction, and because the data configuration instruction is generated in advance at the base station side, each UE entering the range of the base station can determine the number M of the first code channels according to the data configuration instruction, so that the realizability of the scheme of the embodiment of the present invention can be improved.

if the required capacity of the feedback information by the UE is variable or the capacities of the feedback information required by multiple UEs are different, at this time, as an option, the first processing module 502 is further configured to perform channel coding on the data portion;

The first processing module 502 is further configured to determine, according to the number of bits of the feedback information before channel coding, the number M of first code channels that the data portion after channel coding needs to occupy.

it should be noted that, after the number of bits of the data portion of the original feedback information is determined, the first processing module 502 performs channel coding on the data portion of the original feedback information, so as to facilitate subsequent operations.

it should be noted that, the number M of the first code channels determines the bit number of the feedback information that can be transmitted on one first RB, that is, the transmission capacity of the feedback information on one first RB, so before the uplink control information is sent by the first processing module 502, the number M of the first code channels needs to be determined by the first processing module 502, where the first processing module 502 determines the number M of the first code channels that the data portion after channel coding needs to occupy according to the bit number of the feedback information before channel coding, this mode is a dynamic adjustable mode, that is, after the feedback information is analyzed, the number M of the first code channels needed to transmit the feedback information is determined, and the implementability of the scheme of the embodiment of the present invention can be improved.

While one case of the ue according to the embodiment of the present invention is described above (e.g., adopting the single-first-RB multiple-PF 3 manner), another case of the ue according to the embodiment of the present invention is described below (e.g., adopting the multiple-second-RB single-PF 3 manner).

Referring to fig. 8, fig. 8 is a diagram of a ue according to an embodiment of the present invention, and as shown in fig. 8, a ue according to an embodiment of the present invention may include:

A second receiving module 601, configured to receive downlink data information sent by a base station;

a second processing module 602, configured to determine a physical uplink control channel PUCCH resource, where the PUCCH resource is used to carry uplink control information, and the uplink control information includes a data portion of feedback information corresponding to downlink data information and a DMRS portion of a demodulation reference signal used to demodulate the data portion;

A second sending module 603, configured to send uplink control information on the PUCCH resource.

It can be seen that, in the embodiment of the present invention, after receiving downlink data information sent by a base station, a first receiving module 601 first determines, by a first processing module 602, a PUCCH resource, where the PUCCH resource is used to carry uplink control information, where the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a DMRS portion of a demodulation data portion, when transmitting the data portion of the feedback information, the PUCCH resource may occupy a plurality of second RBs, that is, the plurality of second RBs may correspond to one PF3, so that the data portion of the feedback information may be transmitted on a third channel on a different second RB, that is, by transmitting the data portion of the feedback information on third channels of the plurality of second RBs respectively, and then sending, by a first sending module 603, uplink control information on the PUCCH resource, that is, equivalent to arranging a plurality of PF3 on a single first RB, without changing PF3 in an existing LTE system, the capacity of feedback information transmission can be increased by adding a third code track for transmitting the data portion of the feedback information.

It should be noted that the manner in which the second processing module 602 determines the PUCCH resource is similar to the manner in which the first processing module 502 determines the PUCCH resource in the embodiment shown in fig. 7, and details are not repeated here.

Optionally, the first receiving module 601 is further configured to receive a DMRS configuration instruction issued by the base station;

The second processing module 602 is further configured to determine that the first DMRS part occupies K1 second RBs and the second DMRS part occupies K-K1 second RBs according to the DMRS configuration instruction.

Therefore, in order to determine the number K1 of the second RB occupied by the first DMRS part and the number K-K1 of the second RB occupied by the second DMRS part, the first receiving module 601 may receive a DMRS configuration instruction issued by a base station, and after receiving the DMRS configuration instruction, the second processing module 602 may determine the number K1 of the second RB occupied by the first DMRS part and the number K-K1 of the second RB occupied by the second DMRS part according to the instruction.

optionally, the second processing module 602 is further configured to perform uniform DFT on data portions carried on third code channels of the K second RBs.

In order to convert the data portion transmitted on the third code channel from the time domain signal to the frequency domain signal, the data portion needs to be further subjected to DFT operation by the second processing module 602, and since there is one third code channel on one second RB and the data portion transmitted in each second RB is relatively independent, the data portion on each second RB only needs to be subjected to uniform DFT respectively.

The above describes the user equipment according to the embodiment of the present invention, and the following describes the base station according to the embodiment of the present invention.

Referring to fig. 9, fig. 9 is a diagram of a base station according to an embodiment of the present invention, and as shown in fig. 9, a base station according to an embodiment of the present invention may include:

A third sending module 701, configured to send downlink data information to the UE;

a third processing module 702, configured to determine a physical uplink control channel PUCCH resource; the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information sent by the UE according to downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

A third receiving module 703 is configured to receive uplink control information on a PUCCH resource.

as such, in the embodiment of the present invention, the third sending module 701 sends downlink data information to the UE, and the third processing module 702 will determine PUCCH resources, which are used to carry uplink control information, where the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a DMRS portion of a demodulation data portion, in transmitting the data portion of the feedback information, at least two first code channels within a first RB occupied by PUCCH resources may be employed for transmitting the data portion of the feedback information, then the third receiving module 703 receives the uplink control information sent by the UE on the PUCCH resource, i.e., equivalent to arranging a plurality of PFs 3 on a single first RB, without changing the PF3 in the existing LTE system, the capacity of feedback information transmission on a single RB is increased by increasing the number of code channels for transmitting the data portion of the feedback information within a single first RB.

It should be noted that the third processing module 702 determines the PUCCH resource for two purposes, one is to generate a resource configuration instruction and send the resource configuration instruction to the UE, so that the UE can determine the PUCCH resource carrying uplink control information, that is, after sending downlink data information, the third sending module 701 can send a resource configuration instruction to the UE again, where the resource configuration instruction can instruct the UE to use which PUCCH resources to send uplink control information, so that the UE can determine the PUCCH resources according to the resource configuration instruction, and after determining the PUCCH resources, the third receiving module 703 receives the uplink control information sent by the UE on the PUCCH resources.

it should be noted that the timing for the third sending module 701 to send the resource allocation command is not limited to sending the downlink data information and then sending the downlink data information at the same time, and the timing may also be, without limitation, sending the resource allocation command first and then sending the downlink data information.

it should be noted that the third processing module 702 may determine the PUCCH resource according to an actual situation, may dynamically determine the PUCCH resource according to a load condition of the PUCCH resource, for example, determine a PUCCH resource with a lower load to carry uplink control information, or may determine the PUCCH resource according to an interference condition of the PUCCH resource, for example, analyze the interference condition of the PUCCH resource, and select a PUCCH resource with a smaller interference condition to carry uplink control information.

optionally, the third sending module 701 is further configured to send a data configuration instruction to the UE; the data allocation instruction indicates the number M of first code channels included in the first RB for transmitting the data portion.

therefore, in order to enable the UE to determine the number M of the first code channels, the third sending module 701 may send a data configuration instruction to the UE, where the data configuration instruction indicates that the number M of the first code channels used for transmitting the data portion is included in the first RB, so that the UE can obtain the number M of the first code channels from the data configuration instruction after receiving the data configuration instruction, thereby improving the scalability of the scheme according to the embodiment of the present invention.

Optionally, the third processing module 702 is further configured to demodulate the data portion according to the received DMRS portion.

After the third receiving module 703 receives the uplink control information sent by the UE, the third processing module 702 demodulates the data part of the uplink control information through the DMRS part in the uplink control information, so as to obtain actual information of the data part, thereby improving the scalability of the scheme according to the embodiment of the present invention.

While one case of the base station according to the embodiment of the present invention is described above (e.g., the single-first-RB multiple-PF 3 manner is adopted), another case of the base station according to the embodiment of the present invention is described below (e.g., the multiple-second-RB single-PF 3 manner is adopted).

referring to fig. 10, fig. 10 is a diagram of a base station according to an embodiment of the present invention, and as shown in fig. 10, the embodiment of the present invention provides a base station, which may include:

A fourth sending module 801, configured to send downlink data information to the UE;

a fourth processing module 802, configured to determine a physical uplink control channel PUCCH resource, where the PUCCH resource is used to carry uplink control information, and the uplink control information includes a data portion of feedback information corresponding to downlink data information sent by the UE and a DMRS portion of a demodulation reference signal used to demodulate the data portion;

a fourth receiving module 803, configured to receive uplink control information on the PUCCH resource.

as such, in the embodiment of the present invention, the third sending module 801 sends downlink data information to the UE, and the third processing module 802 determines PUCCH resources, which are used to carry uplink control information, where the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a DMRS portion of a demodulation data portion, in transmitting the data portion of the feedback information, at least two first code channels within a first RB occupied by PUCCH resources may be employed for transmitting the data portion of the feedback information, and then the third receiving module 803 receives the uplink control information transmitted by the UE on the PUCCH resource, i.e., equivalent to arranging a plurality of PFs 3 on a single first RB, without changing the PF3 in the existing LTE system, the capacity of feedback information transmission on a single RB is increased by increasing the number of code channels for transmitting the data portion of the feedback information within a single first RB.

It should be noted that the determination of the PUCCH resource by the fourth processing module 802 is similar to the determination of the PUCCH resource by the third processing module 702 in the embodiment shown in fig. 9, and is not described herein again.

it should be noted that the determination of the PUCCH resource by the fourth processing module 802 is similar to the determination of the PUCCH resource by the third processing module 702 in the embodiment shown in fig. 9, and details are not repeated here.

Optionally, the first sending module 801 is further configured to issue a DMRS configuration instruction to the UE, so that the UE configures the second RBs respectively occupied by the first DMRS portion and the second DMRS portion according to the DMRS configuration instruction.

In order to configure the number of the second RBs respectively occupied by the first part and the second part of the DMRS, the first transmitting module 801 may further transmit a DMRS configuration instruction to the UE, and after receiving the DMRS configuration instruction, the UE may determine, according to the instruction, the number K1 of the second RB occupied by the first DMRS part and the number K-K1 of the second RB occupied by the second DMRS part, thereby improving the realizability of the scheme of the embodiment of the invention.

Referring to fig. 11, fig. 11 is a diagram of an embodiment of a user equipment according to an embodiment of the present invention, where the user equipment 9 may include at least one processor 901, at least one receiver 902, and at least one transmitter 903, which are all connected to a bus, and a base station according to an embodiment of the present invention may have more or fewer components than those shown in fig. 11, may combine two or more components, or may have different configurations or arrangements of components, and each component may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

Specifically, for the embodiment shown in fig. 7, the processor 901 can implement the functions of the first processing module 502 in the embodiment shown in fig. 7, the receiver 902 can implement the functions of the first receiving module 501 in the embodiment shown in fig. 7, and the transmitter 903 can implement the functions of the first transmitting module 503 in the embodiment shown in fig. 7;

for fig. 8, the processor 901 can implement the functions of the first processing module 602 in the embodiment shown in fig. 8, the receiver 902 can implement the functions of the first receiving module 601 in the embodiment shown in fig. 8, and the transmitter 903 can implement the functions of the second transmitting module 603 in the embodiment shown in fig. 8.

Referring to fig. 12, fig. 12 is a diagram of a user equipment according to an embodiment of the present invention, wherein a base station 10 may include at least one processor 1001, at least one receiver 1002, and at least one transmitter 1003, which are all connected to a bus, and the base station according to the embodiment of the present invention may have more or less components than those shown in fig. 12, may combine two or more components, or may have different configurations or arrangements of components, and each component may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

specifically, for the embodiment shown in fig. 9, the processor 1001 can implement the function of the third processing module 702 in the embodiment shown in fig. 9, the receiver 1002 can implement the function of the third receiving module 703 in the embodiment shown in fig. 9, and the transmitter 1003 can implement the function of the third transmitting module 701 in the embodiment shown in fig. 9;

With respect to fig. 10, the processor 1001 can implement the functions of the fourth processing module 1002 in the embodiment shown in fig. 10, the receiver 1002 can implement the functions of the fourth receiving module 803 in the embodiment shown in fig. 10, and the transmitter 1003 can implement the functions of the fourth transmitting module 801 in the embodiment shown in fig. 10.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method for transmitting uplink control information, comprising:

user Equipment (UE) receives downlink data information sent by a base station;

The UE determines a Physical Uplink Control Channel (PUCCH) resource, wherein the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information corresponding to the downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

the first resource block RB occupied by the PUCCH resource comprises M first code channels used for transmitting the data part and N second code channels used for transmitting the DMRS part, each first code channel corresponds to an orthogonal code sequence, each second code channel corresponds to a DMRS sequence, wherein N < M, M and N are integers, M >1, and N is more than or equal to 1;

And the UE sends the uplink control information on the PUCCH resources.

2. The method for transmitting uplink control information according to claim 1, wherein: said N is equal to 1.

3. The method for transmitting uplink control information according to claim 1 or 2, wherein: the method further comprises the following steps:

4. The method according to claim 3, wherein the method further comprises:

5. the method according to any one of claims 1, 2 or 4, wherein the method further comprises:

the UE channel-encodes the data portion;

6. the method according to any one of claims 1, 2 or 4, wherein the method further comprises:

Receiving a data configuration instruction sent by a base station;

7. The method according to any one of claims 1, 2 or 4, wherein:

The first code channel and the second code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

8. a method for transmitting uplink control information, comprising:

user Equipment (UE) receives downlink data information sent by a base station;

The PUCCH resource occupies K second RBs which are continuous, each second RB comprises a third code channel used for transmitting the data part, each third code channel corresponds to an orthogonal code sequence, the DMRS parts comprise a first DMRS part and a second DMRS part which do not overlap with each other in frequency domain,

wherein the first DMRS part occupies K1 of K1 second RBs, each of the K1 second RBs occupied by the first DMRS part contains a fourth code channel for transmitting the first DMRS part, each of the fourth code channels corresponds to a first sequence of DMRS, the second DMRS part occupies K-K1 second RBs, the K-K1 second RBs occupied by the second DMRS part collectively correspond to a fifth code channel for transmitting the second DMRS part, and the fifth code channel corresponds to a second sequence of DMRS, wherein K1 is greater than or equal to 0 and less than or equal to K, K and K1 are integers, and K > 1;

And the UE sends the uplink control information on the PUCCH resources.

9. the method for transmitting uplink control information according to claim 8, wherein: and the data parts transmitted in a third code channel in K1 second RBs containing the fourth code channel adopt frequency domain cyclic shift.

10. The method for transmitting uplink control information according to claim 8, wherein: and the data part transmitted in a third code channel in K-K1 second RBs corresponding to the fifth code channel is not subjected to frequency domain cyclic shift.

11. the method according to any one of claims 8 to 10, wherein: at least two of the K1 first sequences adopt the same or different root sequences.

12. The method according to any one of claims 8 to 10, wherein: at least two of the K1 first sequences adopt the same root sequence and different cyclic shifts.

13. the method according to any one of claims 8 to 10, wherein: the method further comprises the following steps:

The UE receives a DMRS configuration instruction issued by a base station;

and the UE determines that the first DMRS part occupies K1 second RBs according to the DMRS configuration instruction, and the second DMRS part occupies K-K1 second RBs.

14. the method according to any one of claims 8 to 10, wherein: before the UE transmits the uplink control information on the PUCCH resource, the method further includes:

And the UE carries out uniform DFT on data parts borne on third code channels of the K second RBs.

15. the method according to any one of claims 8 to 10, wherein: the third code channel, the fourth code channel and the fifth code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

16. A method for receiving uplink control information, comprising:

A base station sends downlink data information to User Equipment (UE);

A base station determines physical uplink control channel PUCCH resources; the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information sent by the UE according to the downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

And the base station receives the uplink control information on the PUCCH resources.

17. The method for receiving uplink control information according to claim 16, wherein: said N is equal to 1.

18. the method for receiving uplink control information according to claim 16 or 17, wherein the method further comprises:

19. the method for receiving uplink control information according to any one of claims 16 to 17, wherein the method further comprises:

20. The method for receiving uplink control information according to any one of claims 16 to 17, wherein:

21. A method for receiving uplink control information, comprising:

a base station sends downlink data information to User Equipment (UE);

a base station determines a Physical Uplink Control Channel (PUCCH) resource, wherein the PUCCH resource is used for carrying uplink control information, and the uplink control information comprises a data part of feedback information corresponding to downlink data information sent by UE and a demodulation reference signal (DMRS) part for demodulating the data part;

22. The method for receiving uplink control information according to claim 21, wherein: the data portions transmitted in the third code channel within the K1 second RBs containing the fourth code channel all employ frequency domain cyclic shifts.

23. the method for receiving uplink control information according to claim 22, wherein: and the data part transmitted in a third code channel in K-K1 second RBs corresponding to the fifth code channel is not subjected to frequency domain cyclic shift.

24. the method for receiving uplink control information according to any one of claims 21 to 23, wherein: at least two of the K1 first sequences adopt the same or different root sequences.

25. The method for receiving uplink control information according to any one of claims 21 to 23, wherein: at least two of the K1 first sequences adopt the same root sequence and different cyclic shifts.

26. The method for receiving uplink control information according to any one of claims 21 to 23, wherein the method further comprises:

27. The method for receiving uplink control information according to any one of claims 21 to 23, wherein:

the third code channel, the fourth code channel and the fifth code channel are respectively identified by a time domain orthogonal code or a frequency domain orthogonal code.

28. A user device, comprising:

A first processing module, configured to determine a Physical Uplink Control Channel (PUCCH) resource, where the PUCCH resource is used to carry uplink control information, and the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a demodulation reference signal (DMRS) portion used to demodulate the data portion;

a first sending module, configured to send the uplink control information on the PUCCH resource.

29. The user equipment of claim 28, wherein:

the first processing module is further configured to perform discrete fourier transform DFT on the data portion on each of the M first code channels, respectively.

30. the user equipment of claim 28, wherein:

The first processing module is further configured to perform independent spreading on the data portion on each of the M first code channels by using different spreading code sequences.

31. the user equipment according to any of claims 28-30, wherein:

The first processing module is further configured to perform channel coding on the data portion;

The first processing module is further configured to determine, according to the number of bits of the feedback information before channel coding, the number M of first code channels that need to be occupied by the data portion after channel coding.

32. The user equipment according to any of claims 28-30, wherein:

The first receiving module is further configured to receive a data configuration instruction sent by the base station;

33. A user device, comprising:

A second processing module, configured to determine a physical uplink control channel PUCCH resource, where the PUCCH resource is used to carry uplink control information, and the uplink control information includes a data portion of feedback information corresponding to the downlink data information and a DMRS portion for demodulating the data portion;

And a second sending module, configured to send the uplink control information on the PUCCH resource.

34. The user equipment of claim 33, wherein:

The second receiving module is further configured to receive a DMRS configuration instruction issued by the base station;

the second processing module is further configured to determine that the first DMRS part occupies K1 of the second RBs according to the DMRS configuration instruction, and that the second DMRS part occupies K-K1 of the second RBs.

35. the user equipment according to claim 33 or 34, wherein:

And the second processing module is further configured to perform uniform DFT on data portions carried on third code channels of the K second RBs.

36. A base station, comprising:

a third sending module, configured to send downlink data information to the UE;

a third processing module, configured to determine a physical uplink control channel PUCCH resource; the PUCCH resource is used for bearing uplink control information, and the uplink control information comprises a data part of feedback information sent by the UE according to the downlink data information and a demodulation reference signal (DMRS) part for demodulating the data part;

A third receiving module, configured to receive the uplink control information on the PUCCH resource.

37. The base station of claim 36, wherein:

The third sending module is further configured to send a data configuration instruction to the UE; and the data configuration instruction indicates the number M of first code channels used for transmitting the data part in the first RB.

38. The base station according to claim 36 or 37, characterized by:

The third processing module is further configured to demodulate the data portion according to the received DMRS portion.

39. a base station, comprising:

A fourth processing module, configured to determine a physical uplink control channel PUCCH resource, where the PUCCH resource is used to carry uplink control information, and the uplink control information includes a data portion of feedback information corresponding to the downlink data information sent by the UE and a DMRS portion for demodulating a demodulation reference signal (DMRS) used to demodulate the data portion;

A fourth receiving module, configured to receive the uplink control information on the PUCCH resource.

40. The base station of claim 39, wherein:

the fourth sending module is further configured to issue a DMRS configuration instruction to the UE, so that the UE configures second RBs respectively occupied by the first DMRS part and the second DMRS part according to the DMRS configuration instruction.