CN116248240A - Method, device and storage medium for multiplexing SR and ACK - Google Patents

Method, device and storage medium for multiplexing SR and ACK Download PDF

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CN116248240A
CN116248240A CN202211504399.8A CN202211504399A CN116248240A CN 116248240 A CN116248240 A CN 116248240A CN 202211504399 A CN202211504399 A CN 202211504399A CN 116248240 A CN116248240 A CN 116248240A
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ack
transmission resource
multiplexing
pucch
pucch transmission
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赵亚云
冯伟
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CICT Mobile 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
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

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  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method, a device and a storage medium for multiplexing SR and ACK, wherein the method comprises the following steps: receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1; and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource. The method for multiplexing the SR and the ACK can realize the lossless transmission of the SR and the ACK, avoid the discarding of the SR, shorten the data transmission time delay and improve the user experience.

Description

Method, device and storage medium for multiplexing SR and ACK
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a storage medium for multiplexing SR and ACK.
Background
In 5G, a physical uplink control channel (Physical Uplink Control Channel, PUCCH) is used to transmit uplink control information (Uplink Control Information, UCI) including a scheduling request (Scheduling Request, SR), acknowledgement character (Acknowledge Character, ACK) feedback information, and channel state information (Channel State Information, CSI).
In 5G, 5 PUCCH formats are supported, PUCCH format0, PUCCH format1, PUCCH format 2, PUCCH format3, and PUCCH format 4, respectively.
The PUCCH format0 and PUCCH format1 may be used to send feedback of ACK, or may carry SR information.
The PUCCH format 2/3/4 transmits UCI information exceeding 2bits, and since the CSI information has a large length, it can only be transmitted through the PUCCH format 2/3/4, and ACK can be transmitted using PUCCH format0 or PUCCH format1 when the length is 2bits or less, and PUCCH format 2/3/4 when the length is 2bits or more.
In the process that the UE actually reports UCI, the UE may send SR and ACK separately, and there may be a time when the SR and ACK need to be sent simultaneously.
When the SR uses PUCCH format0 resources and the ACK uses PUCCH format1 resources, feedback information is transmitted using ACK/NACK resources, and the SR is discarded.
If the information is PUCCH format 0SR+PUCCH format 1ACK, only PUCCH format 1ACK information is transmitted, and SR is discarded.
Disclosure of Invention
Aiming at the problems existing in the prior art, the embodiment of the invention provides a method, a device and a storage medium for multiplexing SR and ACK.
The invention provides a method for multiplexing SR and ACK, which is applied to a terminal and comprises the following steps:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
In some embodiments, in a case where the SR is a positive SR, the multiplexing the ACK and the SR at the first PUCCH transmission resource based on the PUCCH format of the ACK includes:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
adding a phase rotation of a preset angle to the target sequence to determine a first sequence;
determining a second sequence based on the first information and the first sequence;
and spreading the second sequence, and mapping the spread second sequence to the first PUCCH transmission resource.
In some embodiments, in a case where the SR is a negative SR, the multiplexing the ACK and the SR at the first PUCCH transmission resource based on the PUCCH format of the ACK includes:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
determining a third sequence based on the first information and the target sequence;
and spreading the third sequence, and mapping the spread third sequence to the first PUCCH transmission resource.
In some embodiments, the multiplexed transmission condition includes:
and transmitting the ACK and the SR at the same time of the same uplink time slot.
The invention provides a method for multiplexing SR and ACK, which is applied to network equipment and comprises the following steps:
sending a scheduling message to the terminal under the condition that the ACK and the SR meet the multiplexing transmission condition;
scheduling a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
and receiving the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
The invention also provides a terminal, which comprises a memory, a transceiver and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
The invention also provides a network device, which comprises a memory, a transceiver and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
sending a scheduling message to the terminal under the condition that the ACK and the SR meet the multiplexing transmission condition;
scheduling a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
and receiving the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method of multiplexing SRs and ACKs as described in any one of the above when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of multiplexing SRs and ACKs as described in any one of the above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a method of multiplexing SRs and ACKs as described in any one of the above.
The method, the device and the storage medium for multiplexing the SR and the ACK can realize the lossless transmission of the SR and the ACK, avoid the discarding of the SR, shorten the data transmission time delay and improve the user experience.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for multiplexing SR and ACK according to an embodiment of the present invention;
FIG. 2 is a second flow chart of a method for multiplexing SR and ACK according to the embodiment of the invention;
FIG. 3 is a third flow chart of a method for multiplexing SR and ACK according to the embodiment of the invention;
FIG. 4 is a flowchart of a method for multiplexing SR and ACK according to an embodiment of the disclosure;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for multiplexing SR and ACK according to an embodiment of the present invention;
fig. 8 is a second schematic structural diagram of an apparatus for multiplexing SR and ACK according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the process of accessing a terminal, a radio resource management (radio resource control, RRC) layer configures PUCCH resources and related parameters to a user equipment/terminal (UE), and the UE carries information to be reported on corresponding physical resources and reports the information to the base station.
The parameters configured by the RRC layer to the UE include: scheduling request Resource control of SR is configured, and parameter PUCCH-Resource of PUCCH Resource is configured.
The periodic and offset configured in the schedulingRequestResourceConfig is the period and offset of SR reporting, which is the time domain resource of SR; the pucch-Resource is a frequency domain Resource reported by UCI, and may be configured into format0 or format1 when configured for the frequency domain Resource of SR.
After receiving the time-frequency domain resource allocation issued by the base station, the terminal loads the reported information on the resource at the time of periodic SR reporting or the time when the ACK needs to be fed back, and transmits the reported information to the base station. The SR is transmitted on the PUCCH, and when uplink data exists, the SR does not need to be reported; the ACK may be transmitted on a PUCCH channel or on PUSCH (physical uplink shared channel, uplink shared channel), and in the embodiment of the present invention, only the scenes transmitted on PUCCH format0 and PUCCH format1 are referred to, and other formats and scenes are not referred to in the present invention.
In the prior art, the SR is discarded for the scene of SR format 0+ack format1, and the feedback information is transmitted using ACK/NACK resources.
The reason for rejecting SR is as follows:
if the format1 resource of the ACK is used for sending multiplexing information, only 2bit information can be carried, and when the ACK has 2bits, SR information cannot be carried.
If the format0 resource of the SR is used to transmit the multiplexing information, since the SR cyclically shifts m when using the format0 cs Fixed to 0 indicates only SR, and ACK information cannot be carried, so SR is eventually discarded.
The invention provides a method for multiplexing SR and ACK, which can realize lossless transmission of the SR and the ACK, avoid discarding the SR, shorten the data transmission time delay and improve the user experience.
Fig. 1 is a schematic flow chart of a method for multiplexing SR and ACK according to an embodiment of the present invention, and referring to fig. 1, an embodiment of the present invention provides a method for multiplexing SR and ACK, where an execution body may be a terminal, for example, a mobile phone. The method may include:
step 101, receiving a scheduling message sent by a network device under the condition that ACK and SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
step 102, multiplexing the ACK and the SR on the first PUCCH transmission resource based on the PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
step 103, sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
In step 101, in case it is determined that the ACK and the SR satisfy the multiplexed transmission condition, a scheduling message transmitted by the network device is received.
Optionally, in the terminal access process, the base station configures time domain resources and frequency domain resources for reporting SR and ACK for the terminal through the link establishment message rrcSetup. The PUCCH format configured by SR is PUCCH format0, and the PUCCH format configured by ack is PUCCH format 1.
When there is multiplexing of SR and ACK, only the resource scheduling of ACK is issued, and the multiplexing flag (multiplex_type) in the demodulation message is set to 2.
When the flag bit is 0, no multiplexing is indicated. When the flag bit is 1, the SR and ACK are multiplexed on the PUCCH format1 resource, and scheduling of the SR resource and the ACK resource is issued at the same time. Here, the flag bit is set to 2, which means a scene different from the case where both SR and ACK are format 1.
At this time, the base station does not schedule SR resources of format0, schedules only ACK resources of format1, and transmits a scheduling message to the terminal.
In step 102, the ACK and the SR are multiplexed on the first PUCCH transmission resource based on the PUCCH format of the ACK.
And after receiving the scheduling message, the terminal modulates the original bit information b (i) of the ACK to generate d (i) when reporting the ACK to the uplink slot.
(1) If there is a positive SR to be transmitted, the phase rotation of the low peak-to-average ratio sequence increased by an angle θ is multiplied by d (i) to obtain a y (n) sequence with a length of 12, and the formula of the y (n) sequence is as follows:
Figure BDA0003967628870000081
wherein d (i) is information generated after the original bit information b (i) of the ACK is modulated; θ is an increased preset angle;
Figure BDA0003967628870000082
a low peak-to-average ratio (low PAPR) sequence used for format 1; />
Figure BDA0003967628870000083
Number of subcarriers for one Resource Block (RB).
The y (n) sequence is mapped to the first PUCCH transmission resource after being spread.
(2) If there is a negative SR to be transmitted, the low peak-to-average ratio sequence is multiplied by d (i) to obtain a y (n) sequence with the length of 12, and the formula of the y (n) sequence is as follows:
Figure BDA0003967628870000084
wherein d (i) is information generated after the original bit information b (i) of the ACK is modulated;
Figure BDA0003967628870000085
is a low peak-to-average ratio sequence; />
Figure BDA0003967628870000086
Number of subcarriers for one RB.
The y (n) sequence is mapped to the first PUCCH transmission resource after being spread.
In step 103, the ACK and the SR are sent to the network device over the first PUCCH transmission resource.
And sending the ACK and the SR to the base station through the first PUCCH transmission resource.
When the physical layer receives the demodulation message of the base station, if the multiplex_type is equal to 2, when the physical layer receives the uplink data, the physical layer firstly analyzes the uplink data according to the resource of the PUCCH format1 of the ACK, and if the physical layer can analyze the data, the physical layer does not have a real SR, and the analyzed data is the ACK value.
If no data exists, the data can be analyzed again in the direction of the angle of the phase theta, and the data can be analyzed at the moment, so that the positive SR exists at the moment, and the analyzed data is the data content of the ACK.
The method for multiplexing the SR and the ACK can realize the lossless transmission of the SR and the ACK, avoid the discarding of the SR, shorten the data transmission delay and improve the user experience.
In some embodiments, in a case where the SR is a positive SR, the multiplexing the ACK and the SR at the first PUCCH transmission resource based on the PUCCH format of the ACK includes:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
adding a phase rotation of a preset angle to the target sequence to determine a first sequence;
determining a second sequence based on the first information and the first sequence;
and spreading the second sequence, and mapping the spread second sequence to the first PUCCH transmission resource.
Alternatively, in the case where the SR is a positive SR, there is a positive SR that needs to be transmitted.
When the ACK is transmitted on the PUCCH format1, the transmission process comprises the following steps: generating a low peak-to-average ratio sequence, determining a cyclic shift, generating a target sequence, sequence modulation, time domain spreading and resource mapping.
The formula for the low peak-to-average ratio sequence is as follows:
Figure BDA0003967628870000091
/>
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure BDA0003967628870000092
for low peak-to-average ratio sequences, α is the cyclic shift, δ=0, n is the index of the generated sequence, j is the imaginary unit of the complex number, +.>
Figure BDA0003967628870000093
As a base sequence, M ZC To generate a target length for the low peak to average ratio sequence.
Base sequence
Figure BDA0003967628870000094
According to the difference of u values, the sequence is divided into 30 groups, u is {0,1 … }, and v is the sequence number of a basic sequence in one group. The values of u and v are calculated according to the protocol by the parameters configured by the higher layers.
The calculation formula of alpha is as follows:
Figure BDA0003967628870000101
wherein alpha is cyclic shift;
Figure BDA0003967628870000102
number of subcarriers for one RB; m is m 0 For initial cyclic shift, the higher layer parameters PUCCH-format 0->initialCyclicShift determines, m 0 The value range of (2) is [0,11 ]]；m CS In relation to both transport format and content, m when PUCCH format1 is used CS ＝0；n CS Representing the amount of cyclic shift on each symbol per slot;
Figure BDA0003967628870000103
is the time slot number in the radio frame; l is the number of the OFDM symbol inside the PUCCH transmission; l' is the index of the first OFDM symbol of the PUCCH transmission in the corresponding slot.
And generating a target sequence according to the generated low peak-to-average ratio sequence and the cyclic shift alpha.
Adding a phase rotation of a preset angle to a target sequence, and determining a first sequence, wherein the formula of the first sequence is as follows:
Figure BDA0003967628870000104
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure BDA0003967628870000105
is a first sequence; θ is a predetermined angle, for example, +.>
Figure BDA0003967628870000106
Figure BDA0003967628870000107
Is the target sequence.
And when the terminal reports the ACK on the uplink slot, modulating the original bit information b (i) of the ACK to generate d (i).
PUCCH format1 supports two modulation schemes, binary phase shift keying (binary phase shift keying, BPSK) for 1bit, quadrature phase shift keying (quadrature phase shift keying, QPSK) for 2bit, and b (i) represents the original bit.
When BPSK is used for modulation, the modulated sequence is as follows:
Figure BDA0003967628870000108
when QPSK is used for modulation, the modulated sequence is as follows:
Figure BDA0003967628870000111
d (i) obtained by modulating the original bits of ACK is multiplied by a first sequence
Figure BDA0003967628870000112
A second sequence of length 12 is obtained, the formula of which is as follows:
Figure BDA0003967628870000113
and (3) spreading the y (n) sequence to obtain a final sequence, and mapping the final sequence onto physical resources.
In some embodiments, in a case where the SR is a negative SR, the multiplexing the ACK and the SR at the first PUCCH transmission resource based on the PUCCH format of the ACK includes:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
determining a third sequence based on the first information and the target sequence;
and spreading the third sequence, and mapping the spread third sequence to the first PUCCH transmission resource.
Alternatively, in the case where the SR is a negative SR, that is, when there is a negative SR to be transmitted.
When the ACK is transmitted on the PUCCH format1, the transmission process comprises the following steps: generating a low peak-to-average ratio sequence, determining a cyclic shift, generating a target sequence, sequence modulation, time domain spreading and resource mapping.
The formula for the low peak-to-average ratio sequence is as follows:
Figure BDA0003967628870000114
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure BDA0003967628870000115
for low peak-to-average ratio sequences, α is the cyclic shift, δ=0, n is the index of the generated sequence, j is the imaginary unit of the complex number, +.>
Figure BDA0003967628870000116
As a base sequence, M ZC A target length of the low peak-to-average ratio sequence is generated.
Base sequence
Figure BDA0003967628870000121
According to the difference of u values, the sequence is divided into 30 groups, u is {0,1 … }, and v is the sequence number of a basic sequence in one group. The values of u and v are calculated by the high-level configuration parameters according to the protocol.
The calculation formula of alpha is as follows:
Figure BDA0003967628870000122
wherein alpha is cyclic shift;
Figure BDA0003967628870000123
number of subcarriers for one RB; m is m 0 For initial cyclic shift, the higher layer parameters PUCCH-format 0->initialCyclicShift determines, m 0 The value range of (2) is [0,11 ]]；m CS In relation to both transport format and content, m when PUCCH format1 is used CS ＝0；n CS Representing the amount of cyclic shift on each symbol per slot;
Figure BDA0003967628870000124
is the time slot number in the radio frame; l is the number of the OFDM symbol inside the PUCCH transmission; l' is the index of the first OFDM symbol of the PUCCH transmission in the corresponding slot.
And generating a first sequence according to the generated low peak-to-average ratio sequence and the cyclic shift alpha.
The PUCCH format1 supports two modulation schemes, and uses binary phase shift keying BPSK for 1bit and QPSK for 2bit, and b (i) represents the original bit.
When BPSK is used for modulation, the modulated sequence is as follows:
Figure BDA0003967628870000125
when QPSK is used for modulation, the modulated sequence is as follows:
Figure BDA0003967628870000126
/>
d (i) obtained by modulating the original bits of ACK is multiplied by a first sequence
Figure BDA0003967628870000127
A y (n) sequence of length 12 is obtained:
Figure BDA0003967628870000128
and (3) spreading the y (n) sequence to obtain a final sequence, and mapping the final sequence onto physical resources.
Therefore, when the physical layer receives the demodulation message of the base station, if the multiplex_type is equal to 2, when the physical layer receives the uplink data, the physical layer firstly analyzes the uplink data according to the resource of the PUCCH format1 of the ACK, and if the physical layer can analyze the data, the analyzed data is the ACK value without the real SR.
If no data exists, the data can be analyzed again in the direction of the angle of the phase theta, and the data can be analyzed at the moment, so that the positive SR exists at the moment, and the analyzed data is the data content of the ACK.
The method for multiplexing the SR and the ACK can realize the lossless transmission of the SR and the ACK, avoid the discarding of the SR, shorten the data transmission delay and improve the user experience.
In some embodiments, the multiplexed transmission condition includes: and transmitting the ACK and the SR at the same time of the same uplink time slot.
Alternatively, the multiplexing transmission condition may be that ACK and SR are transmitted simultaneously at the same uplink time slot.
Fig. 2 is a second flow chart of a method for multiplexing SR and ACK according to an embodiment of the present invention, and referring to fig. 2, an embodiment of the present invention provides a method for multiplexing SR and ACK, where an execution body may be a network device, for example, a base station. The method may include:
step 201, sending a scheduling message to a terminal when determining that ACK and SR meet multiplexing transmission conditions;
step 202, scheduling a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
step 203, receiving the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
Specifically, the method for multiplexing SR and ACK according to the embodiment of the present invention may refer to the embodiment of the method for multiplexing SR and ACK in which the execution body is a terminal, and may achieve the same technical effects, and the same parts and beneficial effects as those of the embodiment of the corresponding method in the embodiment are not described in detail herein.
Fig. 3 is a third flow chart of a method for multiplexing SR and ACK according to an embodiment of the present invention, and fig. 4 is a fourth flow chart of a method for multiplexing SR and ACK according to an embodiment of the present invention, and the method for multiplexing SR and ACK according to the present invention is described in detail with reference to fig. 3 to fig. 4 in conjunction with a specific embodiment.
In the step 1, in the access process, the terminal configures time-frequency domain resources for reporting SR and ACK to the terminal through a link establishment message rrcSetup, wherein the resource format configured by SR is format0, and the resource format configured by ACK is format 1.
The SR configuration parameters further include: the cycle of the SR and the offset are 160 slots, and the offset is 18;
PUCCH resource 0 is used in the embodiment of the present invention, where the format of the PUCCH resource 0 is format0, startingprb start prb is 1, nrofsymbols are 1, startingsymbol index start symbol is 0, and initial cyclic shift is m 0 Is 0;
examples of the time-frequency domain configuration of the ACK are as follows:
the time domain resource of ACK is determined by dl-DataToUL-ACK value, which refers to the interval value between uplink and downlink carrying feedback information, and is configured by base station in the range of {3, 4, 5, 6, 7, 8, 11}
For example, if downlink slot 5, dl-DataToUL-ack=3, feedback information is transmitted on uplink slot 8.
For frequency domain resources, a base station configures two resource sets, namely PUCCH-resourceSetid 0 and PUCCH-resourceSetid 1, through a resource set list resourceSetid 0 and PUCCH-resourceSetid 1, 8 PUCCH resources are reserved in each set of resource sets, two PUCCH resources with two different formats are configured in the two resource sets, and format1 configured in set 0 is used for transmitting ACK with the length less than or equal to 2 bits; and set 1 configured format3 for transmitting ACK of length greater than 2 bits. In the embodiment of the invention, only set 0 is involved.
And step 2, when the base station schedules the PUCCH, judging whether the time point is a scheduling time point of the periodic SR at the moment, and judging whether the ACK needs to be scheduled.
If the calculation shows that the SR and the ACK are needed to be scheduled on the same uplink slot, the multiplexing is judged to be needed, the base station only schedules the ACK resource, and only needs the demodulation information of the group ACK.
And the multiplex_type in the demodulation interface is set to 2 and sent to the physical layer, so as to tell the physical layer that there is multiplexing of the SR of format0 and the ACK of format1 at this time.
Step 3, when the terminal reports the ACK on the uplink slot, modulating the original bit information b (i) of the ACK to generate d (i):
(1) If there is a positive SR to be transmitted at this time, the phase rotation of the low peak-to-average ratio sequence increased by an angle θ is then multiplied by d (i) to obtain y (n), and the formula is as follows:
Figure BDA0003967628870000151
after being spread, the physical resource is mapped to PUCCH format 1.
(2) If there is a negative SR to send, multiply the low peak-to-average ratio sequence with d (i) to get y (n), the formula is as follows:
Figure BDA0003967628870000152
after being spread, the physical resource is mapped to PUCCH format 1.
And step 4, after receiving the demodulation message of the PUCCH, the physical layer of the base station acquires the value of the multiplex_type and stores the time-frequency domain parameters in the demodulation message.
Step 5, when the physical layer recognizes that uplink data is required to reach the physical layer, judging the value of multiplex_type:
(1) multiplex_type equals 0;
the data analyzed on the ACK resources is the feedback ACK/NACK information only with the ACK data.
(2) multiplex_type is equal to 1;
the SR and the ACK multiplexing which indicate the format1 are respectively analyzed at two resource positions, if the data are analyzed on the SR, the SR report is indicated at the moment, and the analyzed data are ACK/NACK information; if the data is analyzed on the ACK resource, the feedback information is only indicated at the moment, and no SR is reported.
(3) multiplex_type is equal to 2;
the SR indicating format0 and the ACK of format1 are multiplexed, and the ACK is analyzed on the ACK resources, and if the uplink data is analyzed, it means that there is no SR at this time, and the detected data is ACK data.
If no uplink data is detected, the position of the resource position configured by the demodulation message is rotated by an angle theta to detect the uplink data, the uplink data is analyzed at the moment, the uplink SR report exists at the moment, and the detected data is the content of the ACK.
The method for multiplexing the SR and the ACK can realize the lossless transmission of the SR and the ACK, avoid the discarding of the SR, shorten the data transmission delay and improve the user experience.
Fig. 5 is a schematic structural diagram of a terminal provided in an embodiment of the present invention, and referring to fig. 5, an embodiment of the present application further provides a terminal, which may include: memory 510, transceiver 520, and processor 530;
the memory 510 is used for storing a computer program; a transceiver 520 for transceiving data under the control of the processor 530; a processor 530 for reading the computer program in the memory 510 and performing the following operations:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
Wherein in fig. 5, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 530 and various circuits of memory represented by memory 510, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 520 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 540 may also be an interface that enables external inscription of the desired device for different user devices.
The processor 530 is responsible for managing the bus architecture and general processing, and the memory 510 may store data used by the processor 530 in performing operations.
Processor 530 is operable to perform any of the methods provided by the embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in memory 510. The processor and the memory may also be physically separate.
Optionally, the processor 530 is further configured to perform the following operations:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
adding a phase rotation of a preset angle to the target sequence to determine a first sequence;
determining a second sequence based on the first information and the first sequence;
and spreading the second sequence, and mapping the spread second sequence to the first PUCCH transmission resource.
Optionally, the processor 530 is further configured to perform the following operations:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
determining a third sequence based on the first information and the target sequence;
and spreading the third sequence, and mapping the spread third sequence to the first PUCCH transmission resource.
Optionally, the multiplexing transmission condition includes:
and transmitting the ACK and the SR at the same time of the same uplink time slot.
Fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention, and referring to fig. 6, an embodiment of the present application further provides a network device, which may include: a memory 610, a transceiver 620, and a processor 630;
the memory 610 is used for storing a computer program; a transceiver 620 for transceiving data under the control of the processor 630; a processor 630 for reading the computer program in the memory 610 and performing the following operations:
sending a scheduling message to the terminal under the condition that the ACK and the SR meet the multiplexing transmission condition;
scheduling a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
and receiving the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 630 and various circuits of memory represented by memory 610, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 620 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a unit for communicating with various other apparatus over a transmission medium.
The processor 630 is responsible for managing the bus architecture and general processing, and the memory 610 may store data used by the processor 630 in performing operations.
It should be noted that, the terminal and the network device provided in the embodiments of the present invention can implement all the method steps implemented in the embodiments of the method and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the embodiments of the method in the embodiments are omitted herein.
The apparatus for multiplexing SR and ACK provided by the present invention will be described below, and the apparatus for multiplexing SR and ACK described below and the method for multiplexing SR and ACK described above may be referred to correspondingly to each other.
Fig. 7 is one of schematic structural diagrams of an apparatus for multiplexing SR and ACK according to an embodiment of the present invention, and referring to fig. 7, the apparatus for multiplexing SR and ACK according to an embodiment of the present invention may include:
a first receiving module 710, configured to receive a scheduling message sent by a network device, where it is determined that ACK and SR satisfy a multiplexing transmission condition; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
a multiplexing module 720, configured to multiplex the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
a first sending module 730, configured to send the ACK and the SR to the network device through the first PUCCH transmission resource.
Fig. 8 is a second schematic structural diagram of an apparatus for multiplexing SR and ACK according to an embodiment of the present invention, and referring to fig. 8, the apparatus for multiplexing SR and ACK according to an embodiment of the present invention may include:
a second transmitting module 810, configured to transmit a scheduling message to the terminal if it is determined that the ACK and the SR satisfy the multiplexing transmission condition;
a scheduling module 820, configured to schedule a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
and a second receiving module 830, configured to receive the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
It should be noted that, the device for multiplexing SR and ACK provided in the embodiment of the present invention can implement all the method steps implemented in the above method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in the present embodiment are omitted.
In another aspect, the present invention also provides a computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the method of multiplexing SRs and ACKs provided by the methods described above, the method comprising:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method of multiplexing SRs and ACKs provided by the above methods, the method comprising:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for multiplexing SR and ACK, applied to a terminal, comprising:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
2. The method of multiplexing an SR and an ACK according to claim 1, wherein, in a case where the SR is a positive SR, the multiplexing the ACK and the SR at the first PUCCH transmission resource based on the PUCCH format of the ACK comprises:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
adding a phase rotation of a preset angle to the target sequence to determine a first sequence;
determining a second sequence based on the first information and the first sequence;
and spreading the second sequence, and mapping the spread second sequence to the first PUCCH transmission resource.
3. The method for multiplexing SR and ACK according to claim 1, wherein, in the case where the SR is a negative SR, the multiplexing the ACK and the SR at the first PUCCH transmission resource based on the PUCCH format of the ACK comprises:
modulating the original bit information of the ACK to determine first information;
determining a target sequence based on the generated low peak-to-average ratio sequence and the cyclic shift;
determining a third sequence based on the first information and the target sequence;
and spreading the third sequence, and mapping the spread third sequence to the first PUCCH transmission resource.
4. A method according to any one of claims 1 to 3, wherein the multiplexed transmission conditions comprise:
and transmitting the ACK and the SR at the same time of the same uplink time slot.
5. A method for multiplexing SRs and ACKs, applied to a network device, comprising:
sending a scheduling message to the terminal under the condition that the ACK and the SR meet the multiplexing transmission condition;
scheduling a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
and receiving the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
6. A terminal comprising a memory, a transceiver, and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving a scheduling message sent by the network equipment under the condition that the ACK and the SR meet multiplexing transmission conditions; the scheduling message is used for scheduling a first PUCCH transmission resource; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK;
multiplexing the ACK and the SR at the first PUCCH transmission resource based on a PUCCH format of the ACK; the PUCCH format of the ACK is PUCCH format 1;
and sending the ACK and the SR to the network equipment through the first PUCCH transmission resource.
7. A network device comprising a memory, a transceiver, and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
sending a scheduling message to the terminal under the condition that the ACK and the SR meet the multiplexing transmission condition;
scheduling a first PUCCH transmission resource based on the scheduling message; the first PUCCH transmission resource is the PUCCH transmission resource corresponding to the ACK; the first PUCCH transmission resource is used for multiplexing the ACK and the SR;
and receiving the ACK and the SR sent by the terminal through the first PUCCH transmission resource.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of multiplexing SRs and ACKs as claimed in any one of claims 1 to 5 when the program is executed by the processor.
9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the method of multiplexing SRs and ACKs according to any one of claims 1 to 5.
10. A computer program product comprising a computer program which, when executed by a processor, implements a method of multiplexing SRs and ACKs as claimed in any one of claims 1 to 5.
CN202211504399.8A 2022-11-28 2022-11-28 Method, device and storage medium for multiplexing SR and ACK Pending CN116248240A (en)

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Applications Claiming Priority (1)

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