CN110730057B - PUCCH transmission method, terminal and readable storage medium - Google Patents

PUCCH transmission method, terminal and readable storage medium Download PDF

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CN110730057B
CN110730057B CN201810788776.2A CN201810788776A CN110730057B CN 110730057 B CN110730057 B CN 110730057B CN 201810788776 A CN201810788776 A CN 201810788776A CN 110730057 B CN110730057 B CN 110730057B
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pucch
antenna port
determining
orthogonal
base station
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CN110730057A (en
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周欢
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Abstract

A sending method of PUCCH, a terminal and a readable storage medium are provided, wherein the sending method of PUCCH comprises the following steps: acquiring the number N of antenna ports corresponding to the PUCCH, wherein N is more than 1; calculating and determining an orthogonal code corresponding to an antenna port i based on a high-level signaling sent by a base station or based on a configuration parameter indicated by the base station, wherein N-1 is more than or equal to i and more than or equal to 0; and based on the orthogonal code corresponding to the antenna port i, transmitting the PUCCH by adopting N antenna diversity. By applying the scheme, the reliability of PUCCH data transmission can be improved.

Description

PUCCH transmission method, terminal and readable storage medium
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a PUCCH (physical uplink control channel) sending method, a terminal and a readable storage medium.
Background
In a New Radio (NR) system, a Physical Uplink Control Channel (PUCCH) is one Physical Channel of an Uplink in the NR system, and is used to carry Uplink Control Information (UCI). The purpose of setting the PUCCH is to transfer control information of L1/L2 using the PUCCH when a User Equipment (UE) is not scheduled, that is, when no Uplink Shared Channel (UL-SCH) resource is allocated, including: channel status reports, such as Precoding Matrix Indicator (PMI) and Channel Quality Indicator (CQI), etc., HARQ ACK/NACK acknowledgement and Scheduling Request (SR). The PUCCH supports multiple transmission formats, including: PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, and PUCCH format 4.
In the NR system, a high-reliability Low-Latency (URLLC) user terminal has a short transmission duration (short time duration) and is a short duration user terminal; the Enhanced Mobile Broadband (eMBB) ue has a long transmission duration, which is a long time duration (long time duration) ue. In order to improve the resource utilization efficiency, the user terminals with different data transmission durations may multiplex the same time-frequency physical resource. For example, a URLLC user terminal and an eMBB user terminal may multiplex the same time-frequency physical resources.
In the existing NR system, the PUCCH adopts a single antenna to transmit data, so that the reliability is poor, and the transmission requirement of the URLLC service cannot be met.
Disclosure of Invention
The technical problem solved by the embodiment of the invention is how to improve the reliability of PUCCH data transmission.
In order to solve the above technical problem, an embodiment of the present invention provides a PUCCH sending method, including: acquiring the number N of antenna ports corresponding to the PUCCH, wherein N is more than 1; determining an orthogonal code corresponding to an antenna port i based on a high-level signaling sent by a base station, or calculating and determining the orthogonal code corresponding to the antenna port i based on a configuration parameter indicated by the base station, wherein N-1 is more than or equal to i and more than or equal to 0; and based on the orthogonal code corresponding to the antenna port i, transmitting the PUCCH by adopting N antenna diversity.
Optionally, the orthogonal code includes at least one of: initial cyclic shift, time domain orthogonal masking.
Optionally, the determining, based on the higher layer signaling sent by the base station, the orthogonal code corresponding to the antenna port i includes: receiving a high-level signaling sent by a base station, wherein the high-level signaling comprises: orthogonal codes corresponding to the N antenna ports; and acquiring the orthogonal code corresponding to the antenna port i based on the high-level signaling.
Optionally, when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, that the orthogonal code corresponding to the antenna port i includes: determining the initial cyclic shift alpha corresponding to the antenna port 0 according to the following formulal0：
Figure BDA0001733353720000021
Determining an initial cyclic shift α corresponding to the antenna port 1 according to the following formulal1：
Figure BDA0001733353720000022
Where l is the number of symbols transmitted by the PUCCH, l' is the symbol interval relative to the first symbol of the PUCCH,
Figure BDA0001733353720000023
is the number of sub-carriers within one RB, m0For the value, n, indicated by the base station by higher layer signallingcsFor cyclic shifts based on the generation of a pseudo-random code,
Figure BDA0001733353720000024
is the slot index in the radio frame, t is a fixed value, mcsThe values of (A) are: for other PUCCH formats than PUCCH format 0, mcsIs 0; for PUCCH format 0, mcsDepending on the information it transmits.
Optionally, t is 1 or nCCE,pWherein n isCCE,pIs the index of the starting CCE corresponding to the PUCCH.
Optionally, when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, that the orthogonal code corresponding to the antenna port i includes: determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling; determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure BDA0001733353720000025
where i is the orthogonal sequence index, j is 1 or another fixed value,
Figure BDA0001733353720000026
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
Optionally, when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, that the orthogonal code corresponding to the antenna port i includes: determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling; determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure BDA0001733353720000027
where i is the orthogonal sequence index, nCCE,pIs an index of a starting CCE to which the PUCCH corresponds,
Figure BDA0001733353720000031
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
Optionally, for PUCCH format 0, the orthogonal code includes an initial cyclic shift; for PUCCH format 1, the orthogonal code includes an initial cyclic shift and a time domain orthogonal mask.
An embodiment of the present invention provides a terminal, including: the acquisition unit is suitable for acquiring the number N of antenna ports corresponding to the PUCCH, wherein N is more than 1; the determining unit is suitable for determining the orthogonal code corresponding to the antenna port i based on a high-level signaling sent by the base station or calculating and determining the orthogonal code corresponding to the antenna port i based on the configuration parameters indicated by the base station, wherein N-1 is more than or equal to i and more than or equal to 0; and the transmitting unit is suitable for transmitting the PUCCH by adopting N antenna diversity based on the orthogonal code corresponding to the antenna port i.
Optionally, the orthogonal code includes at least one of: initial cyclic shift, time domain orthogonal masking.
Optionally, the determining unit is adapted to receive a higher layer signaling sent by a base station, where the higher layer signaling includes: orthogonal codes corresponding to the N antenna ports; and acquiring the orthogonal code corresponding to the antenna port i based on the high-level signaling.
Optionally, when N is 2, the determining unit is adapted to determine the initial cyclic shift α corresponding to the antenna port 0 according to the following formulal0：
Figure BDA0001733353720000032
Determining an initial cyclic shift α corresponding to the antenna port 1 according to the following formulal1：
Figure BDA0001733353720000033
Where l is the number of symbols transmitted by the PUCCH, l' is the symbol interval relative to the first symbol of the PUCCH,
Figure BDA0001733353720000034
is the number of sub-carriers within one RB, m0For the value, n, indicated by the base station by higher layer signallingcsFor cyclic shifts based on the generation of a pseudo-random code,
Figure BDA0001733353720000035
is the slot index in the radio frame, t is a fixed value, mcsThe values of (A) are: for other PUCCH formats than PUCCH format 0, mcsIs 0; for PUCCH format 0, mcsDepending on the information it transmits.
Optionally, t is 1 or nCCE,pWherein n isCCE,pIs the index of the starting CCE corresponding to the PUCCH.
Optionally, when N is 2, the determining unit is adapted to determine, according to a time domain orthogonal mask indicated by the base station through a higher layer signaling, a time domain orthogonal mask corresponding to the antenna port 0; determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure BDA0001733353720000036
where i is the orthogonal sequence index, j is 1 or another fixed value,
Figure BDA0001733353720000041
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
Optionally, when N is 2, the determining unit is adapted to determine, according to a time domain orthogonal mask indicated by the base station through a higher layer signaling, a time domain orthogonal mask corresponding to the antenna port 0; determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure BDA0001733353720000042
where i is the orthogonal sequence index, nCCE,pIs an index of a starting CCE to which the PUCCH corresponds,
Figure BDA0001733353720000043
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
Optionally, for PUCCH format 0, the orthogonal code includes an initial cyclic shift; for PUCCH format 1, the orthogonal code includes an initial cyclic shift and a time domain orthogonal mask.
An embodiment of the present invention provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and has stored thereon computer instructions, where the computer instructions, when executed, perform any of the steps of the method described above.
An embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform any one of the steps of the method described above.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the embodiment of the invention obtains the number N of antenna ports corresponding to the PUCCH, wherein N is larger than 1, then the orthogonal code corresponding to the antenna port i is determined by calculation based on a high-level signaling sent by a base station or a configuration parameter indicated by the base station, wherein N-1 is larger than or equal to i and larger than or equal to 0, and then the PUCCH is sent by adopting N antenna diversity based on the orthogonal code corresponding to the antenna port i. Since the PUCCH can be transmitted using multi-antenna diversity, reliability of PUCCH transmission data can be improved.
Drawings
Fig. 1 is a flowchart of a PUCCH transmission method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In the existing NR system, the PUCCH adopts a single antenna to transmit data, so that the reliability is poor, and the transmission requirement of the URLLC service cannot be met.
The embodiment of the invention obtains the number N of antenna ports corresponding to the PUCCH, wherein N is larger than 1, then the orthogonal code corresponding to the antenna port i is determined by calculation based on a high-level signaling sent by a base station or a configuration parameter indicated by the base station, wherein N-1 is larger than or equal to i and larger than or equal to 0, and then the PUCCH is sent by adopting N antenna diversity based on the orthogonal code corresponding to the antenna port i. Since the PUCCH can be transmitted using multi-antenna diversity, reliability of PUCCH transmission data can be improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, an embodiment of the present invention provides a method for transmitting a PUCCH, which may include the following steps;
step S101, acquiring the number N of antenna ports corresponding to the PUCCH, wherein N is greater than 1.
In the specific implementation, since the PUCCH uses a single antenna to Transmit data and has poor reliability, the embodiment of the present invention considers that the PUCCH is transmitted using multi-antenna Diversity, that is, the PUCCH is transmitted in Diversity by using a Spatial Orthogonal-Resource Transmit Diversity (SORTD) technique.
Step S102, determining the orthogonal code corresponding to the antenna port i based on the high-level signaling sent by the base station, or calculating and determining the orthogonal code corresponding to the antenna port i based on the configuration parameters indicated by the base station, wherein N-1 is more than or equal to i and more than or equal to 0.
In a specific implementation, for multi-antenna diversity PUCCH transmission, an orthogonal code corresponding to each antenna port needs to be determined first.
In a specific implementation, the Orthogonal Code is used for Code division multiplexing, so as to improve the capacity of the PUCCH, and may include an Initial Cyclic Shift (Initial Cyclic Shift), that is, an Initial Cyclic Shift Code, a Time Domain Orthogonal Code (Time Domain OCC), and both the Initial Cyclic Shift and the Time Domain Orthogonal Code. That is, the orthogonal code includes at least one of: initial cyclic shift, time domain orthogonal masking.
In a specific implementation, for PUCCH format 0, the orthogonal code may include only an initial cyclic shift, excluding a time domain orthogonal mask; for PUCCH format 1, the orthogonal code may include both an initial cyclic shift and a time domain orthogonal mask.
In a specific implementation, the orthogonal code corresponding to the antenna port i may be determined based on a higher layer signaling sent by the base station, or the orthogonal code corresponding to the antenna port i may be calculated and determined based on a configuration parameter indicated by the base station (i.e., a parameter configured by the base station for the UE through the higher layer signaling).
In an embodiment of the present invention, the determining, based on the high layer signaling sent by the base station, the orthogonal code corresponding to the port i includes: receiving a high-level signaling sent by a base station, wherein the high-level signaling comprises: orthogonal codes corresponding to the N antenna ports; and acquiring the orthogonal code corresponding to the antenna port i based on the high-level signaling.
For example, N ═ 2, for PUCCH format 1, the initial cyclic shift and time domain orthogonal mask indicated by the higher layer signaling are as follows:
Figure BDA0001733353720000061
wherein initialcycyclicshift and timeDomainOCC are orthogonal codes corresponding to antenna port 0, and initialcycyclicshift 1 and timeDomainOCC1 are orthogonal codes corresponding to antenna port 1.
It is to be understood that the higher layer signaling may indicate 4 sets of orthogonal codes when N is 4.
For example, N ═ 2, for PUCCH format 0, the initial cyclic shift and time domain orthogonal mask indicated by the higher layer signaling are as follows:
Figure BDA0001733353720000062
wherein initialCyclicShift is an orthogonal code corresponding to antenna port 0, and initialCyclicShift1 is an orthogonal code corresponding to antenna port 1.
In a specific implementation, for a HARQ-ACK PUCCH resource indicated by Downlink Control Information (DCI), an existing scheme may be adopted to obtain the PUCCH resource, and then the PUCCH may be sent in a diversity manner by using the PUCCH sending method provided in the embodiment of the present invention.
In an embodiment of the present invention, for a HARQ-ACK PUCCH resource indicated by a non-DCI or a HARQ-ACK PUCCH resource indicated by a DCI, when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, an orthogonal code corresponding to an antenna port i includes:
determining an initial cyclic shift α corresponding to the antenna port 0 according to the formula (1)l0：
Figure BDA0001733353720000071
Determining the initial cyclic shift alpha corresponding to the antenna port 1 according to the formula (2)l1：
Figure BDA0001733353720000072
Where l is the number of symbols transmitted by the PUCCH, l' is the symbol interval relative to the first symbol of the PUCCH,
Figure BDA0001733353720000073
is the number of sub-carriers within one RB, m0Value, n, indicated (i.e. configured) for the base station by higher layer signalingcsFor cyclic shifts based on the generation of a pseudo-random code,
Figure BDA0001733353720000074
is the slot index in the radio frame, t is a fixed value, mcsThe values of (A) are: for other PUCCH formats than PUCCH format 0, mcsIs 0; for PUCCH format 0, mcsDepending on the information it transmits. For example, for PUCCH format 1, mcsIs 0.
In specific implementation, t may be 1 or nCCE,pWherein n isCCE,pThe index of the Control Channel Element (CCE) corresponding to the PUCCH may also be other fixed values, and all of them belong to the protection scope of the embodiment of the present invention.
It is understood that the initial cyclic shift α corresponding to the antenna port 1 can also be determined according to the formula (1)l1Determining the initial cyclic shift α corresponding to the antenna port 0 according to the formula (2)l0All belong to the protection scope of the embodiments of the present invention.
In an embodiment of the present invention, when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes:
determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling;
determining a time domain orthogonal mask corresponding to the antenna port 1 according to a formula (3):
Figure BDA0001733353720000075
where i is the orthogonal sequence index, j is 1 or another fixed value,
Figure BDA0001733353720000076
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
In particular implementations, j may be nCCE,p。
In an embodiment of the present invention, when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes:
determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling;
determining a time domain orthogonal mask corresponding to the antenna port 1 according to the formula (4):
Figure BDA0001733353720000081
where i is the orthogonal sequence index, nCCE,pIs an index of a starting CCE to which the PUCCH corresponds,
Figure BDA0001733353720000082
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
It can be understood that the time domain orthogonal mask corresponding to the antenna port 1 may also be determined according to the time domain orthogonal mask indicated by the base station through the high layer signaling, and the time domain orthogonal mask corresponding to the antenna port 0 may be determined according to the formula (3) or the formula (4), which both belong to the protection scope of the embodiment of the present invention.
The spreading factor corresponding to PUCCH format 1 may be obtained by using the existing technical scheme, which is not described in detail in the embodiments of the present invention.
And step S103, based on the orthogonal code corresponding to the antenna port i, transmitting the PUCCH by adopting N antenna diversity.
By applying the scheme, the number N of antenna ports corresponding to the PUCCH is obtained, wherein N is larger than 1, then orthogonal codes corresponding to the antenna port i are determined by calculation based on a high-level signaling sent by a base station or configuration parameters indicated by the base station, wherein N-1 is larger than or equal to i and larger than or equal to 0, and then the PUCCH is sent by adopting N antenna diversity based on the orthogonal codes corresponding to the antenna port i. Since the PUCCH can be transmitted using multi-antenna diversity, reliability of PUCCH transmission data can be improved.
In order to enable those skilled in the art to better understand and implement the present invention, an embodiment of the present invention further provides a terminal capable of implementing the transmission method of the PUCCH, as shown in fig. 2.
Referring to fig. 2, the terminal 20 may include: an obtaining unit 21, a determining unit 22 and a sending unit 23, wherein:
the obtaining unit 21 is adapted to obtain the number N of antenna ports corresponding to the PUCCH, where N > 1.
The determining unit 22 is adapted to determine an orthogonal code corresponding to the antenna port i based on a high-level signaling sent by the base station, or calculate and determine an orthogonal code corresponding to the antenna port i based on a configuration parameter indicated by the base station, where N-1 is greater than or equal to i and greater than or equal to 0.
The transmitting unit 23 is adapted to transmit the PUCCH with N antenna diversities based on the orthogonal code corresponding to the antenna port i.
In a specific implementation, the orthogonal code includes at least one of: initial cyclic shift, time domain orthogonal masking.
In an embodiment of the present invention, the determining unit 22 is adapted to receive a higher layer signaling sent by a base station, where the higher layer signaling includes: orthogonal codes corresponding to the N antenna ports; and acquiring the orthogonal code corresponding to the antenna port i based on the high-level signaling.
In an embodiment of the present invention, when N is 2, the determining unit 22 is adapted to determine the initial cyclic shift α corresponding to the antenna port 0 according to the following formulal0：
Figure BDA0001733353720000091
Determining an antenna according to the following formulaInitial cyclic shift α for port 1l1：
Figure BDA0001733353720000092
Where l is the number of symbols transmitted by the PUCCH, l' is the symbol interval relative to the first symbol of the PUCCH,
Figure BDA0001733353720000093
is the number of sub-carriers within one RB, m0For the value, n, indicated by the base station by higher layer signallingcsFor cyclic shifts based on the generation of a pseudo-random code,
Figure BDA0001733353720000094
is the slot index in the radio frame, t is a fixed value, mcsThe values of (A) are: for other PUCCH formats than PUCCH format 0, mcsIs 0; for PUCCH format 0, mcsDepending on the information it transmits.
In one embodiment of the present invention, t is 1 or nCCE,pWherein n isCCE,pIs the index of the starting CCE corresponding to the PUCCH.
In an embodiment of the present invention, when N is 2, the determining unit 22 is adapted to determine a time domain orthogonal mask corresponding to the antenna port 0 according to the time domain orthogonal mask indicated by the base station through the higher layer signaling; determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure BDA0001733353720000095
where i is the orthogonal sequence index, j is 1 or another fixed value,
Figure BDA0001733353720000101
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
In an embodiment of the present invention, when N is 2, the determining unit 22 is adapted to determine a time domain orthogonal mask corresponding to the antenna port 0 according to the time domain orthogonal mask indicated by the base station through the higher layer signaling; determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure BDA0001733353720000102
where i is the orthogonal sequence index, nCCE,pIs an index of a starting CCE to which the PUCCH corresponds,
Figure BDA0001733353720000103
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
In a specific implementation, for PUCCH format 0, the orthogonal code includes an initial cyclic shift; for PUCCH format 1, the orthogonal code includes an initial cyclic shift and a time domain orthogonal mask.
In a specific implementation, the working flow and the principle of the terminal 20 may refer to the description in the method provided in the above embodiment, and are not described herein again.
An embodiment of the present invention provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and on which a computer instruction is stored, where the computer instruction executes, when running, any of the steps corresponding to the foregoing methods, and details are not described here again.
An embodiment of the present invention provides a system, including a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and when the processor runs the computer instruction, the processor executes steps corresponding to any one of the methods described above, which is not described herein again.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (18)

1. A method for transmitting a PUCCH, the method comprising:
acquiring the number N of antenna ports corresponding to the PUCCH, wherein N is more than 1;
determining an orthogonal code corresponding to an antenna port i based on a high-level signaling sent by a base station, or calculating and determining the orthogonal code corresponding to the antenna port i based on a configuration parameter indicated by the base station, wherein N-1 is more than or equal to i and more than or equal to 0;
based on the orthogonal code corresponding to the antenna port i, transmitting a PUCCH by adopting N antenna diversity;
the orthogonal code comprises a time domain orthogonal mask; when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes: determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling; and determining the orthogonal code corresponding to the antenna port 1 according to the orthogonal sequence index and the spreading factor corresponding to the PUCCH format 1.
2. The PUCCH transmission method according to claim 1, wherein the orthogonal code further includes: an initial cyclic shift.
3. The PUCCH transmission method according to claim 2, wherein the determining the orthogonal code corresponding to the antenna port i based on the higher layer signaling transmitted by the base station comprises:
receiving a high-level signaling sent by a base station, wherein the high-level signaling comprises: orthogonal codes corresponding to the N antenna ports;
and acquiring the orthogonal code corresponding to the antenna port i based on the high-level signaling.
4. The PUCCH transmission method according to claim 2, wherein when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes:
determining the initial cyclic shift alpha corresponding to the antenna port 0 according to the following formulal0：
Figure FDA0003503766760000011
Determining an initial cyclic shift α corresponding to the antenna port 1 according to the following formulal1：
Figure FDA0003503766760000012
Where l is the number of symbols transmitted by the PUCCH, l' is the symbol interval relative to the first symbol of the PUCCH,
Figure FDA0003503766760000013
is the number of sub-carriers within one RB, m0For the value, n, indicated by the base station by higher layer signallingcsFor cyclic shifts based on the generation of a pseudo-random code,
Figure FDA0003503766760000014
is the slot index in the radio frame, t is a fixed value, mcsThe values of (A) are: for other PUCCH formats than PUCCH format 0, mcsIs 0; for PUCCH format 0, mcsDepending on the information it transmits.
5. The PUCCH transmission method according to claim 4, wherein t is 1 or nCCE,pWherein n isCCE,pIs the index of the starting CCE corresponding to the PUCCH.
6. The PUCCH transmission method according to claim 1, wherein when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes:
determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling;
determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure FDA0003503766760000021
where i is the orthogonal sequence index, j is 1 or another fixed value,
Figure FDA0003503766760000022
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
7. The PUCCH transmission method according to claim 1, wherein when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes:
determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling;
determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure FDA0003503766760000023
where i is the orthogonal sequence index, nCCE,pIs an index of a starting CCE to which the PUCCH corresponds,
Figure FDA0003503766760000024
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
8. The sending method of PUCCH according to any of claims 1 to 7, wherein for PUCCH format 0, the orthogonal code comprises an initial cyclic shift; for PUCCH format 1, the orthogonal code includes an initial cyclic shift and a time domain orthogonal mask.
9. A terminal, comprising:
the acquisition unit is suitable for acquiring the number N of antenna ports corresponding to the PUCCH, wherein N is more than 1;
the determining unit is suitable for determining the orthogonal code corresponding to the antenna port i based on a high-level signaling sent by the base station or calculating and determining the orthogonal code corresponding to the antenna port i based on the configuration parameters indicated by the base station, wherein N-1 is more than or equal to i and more than or equal to 0;
a sending unit, adapted to send a PUCCH with N antenna diversity based on the orthogonal code corresponding to the antenna port i;
the orthogonal code comprises a time domain orthogonal mask; when N is 2, the determining, based on the configuration parameter calculation indicated by the base station, the orthogonal code corresponding to the antenna port i includes: determining a time domain orthogonal mask corresponding to an antenna port 0 according to a time domain orthogonal mask indicated by a base station through a high-level signaling; and determining the orthogonal code corresponding to the antenna port 1 according to the orthogonal sequence index and the spreading factor corresponding to the PUCCH format 1.
10. The terminal of claim 9, wherein the orthogonal code further comprises: an initial cyclic shift.
11. The terminal according to claim 10, wherein the determining unit is adapted to receive a higher layer signaling sent by a base station, and the higher layer signaling comprises: orthogonal codes corresponding to the N antenna ports; and acquiring the orthogonal code corresponding to the antenna port i based on the high-level signaling.
12. The terminal according to claim 10, wherein when N-2, the determining unit is adapted to determine the initial cyclic shift α corresponding to antenna port 0 according to the following formulal0：
Figure FDA0003503766760000031
Determining an initial cyclic shift α corresponding to the antenna port 1 according to the following formulal1：
Figure FDA0003503766760000032
Where l is the number of symbols transmitted by the PUCCH, l' is the symbol interval relative to the first symbol of the PUCCH,
Figure FDA0003503766760000033
is the number of sub-carriers within one RB, m0For the value, n, indicated by the base station by higher layer signallingcsFor cyclic shifts based on the generation of a pseudo-random code,
Figure FDA0003503766760000034
is the slot index in the radio frame, t is a fixed value, mcsThe values of (A) are: for other PUCCH formats than PUCCH format 0, mcsIs 0; for PUCCH format 0, mcsDepending on the information it transmits.
13. The terminal of claim 12, wherein t is 1 or nCCE,pWherein n isCCE,pIs the index of the starting CCE corresponding to the PUCCH.
14. The terminal according to claim 9, wherein when N is 2, the determining unit is adapted to determine a time domain orthogonal mask corresponding to antenna port 0 according to the time domain orthogonal mask indicated by the base station through the higher layer signaling;
determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure FDA0003503766760000041
where i is the orthogonal sequence index, j is 1 or another fixed value,
Figure FDA0003503766760000042
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
15. The terminal according to claim 9, wherein when N is 2, the determining unit is adapted to determine a time domain orthogonal mask corresponding to antenna port 0 according to the time domain orthogonal mask indicated by the base station through the higher layer signaling;
determining a time domain orthogonal mask corresponding to the antenna port 1 according to the following formula:
Figure FDA0003503766760000043
where i is the orthogonal sequence index, nCCE,pIs an index of a starting CCE to which the PUCCH corresponds,
Figure FDA0003503766760000044
mod represents the remainder operation for the spreading factor corresponding to PUCCH format 1.
16. The terminal according to any of claims 9 to 15, wherein for PUCCH format 0, the orthogonal code comprises an initial cyclic shift; for PUCCH format 1, the orthogonal code includes an initial cyclic shift and a time domain orthogonal mask.
17. A computer-readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having computer instructions stored thereon, wherein the computer instructions, when executed by a processor, perform the steps of the method according to any one of claims 1 to 8.
18. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 8.
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