CN111585738A - Method for simultaneously transmitting scheduling request and HARQ feedback - Google Patents

Method for simultaneously transmitting scheduling request and HARQ feedback Download PDF

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CN111585738A
CN111585738A CN202010377733.2A CN202010377733A CN111585738A CN 111585738 A CN111585738 A CN 111585738A CN 202010377733 A CN202010377733 A CN 202010377733A CN 111585738 A CN111585738 A CN 111585738A
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scheduling request
harq feedback
harq
data
cyclic shift
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CN111585738B (en
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龚科
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Sichuan Innogence Technology Co Ltd
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Sichuan Innogence 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
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method for simultaneously transmitting a scheduling request and HARQ feedback, which comprises the following steps of S1: generating a base sequence; s2: calculating a cyclic shift factor and a parameter; s3: calculating a cyclic shift sequence; s4: obtaining a reference signal by orthogonal frequency spreading; s5: and reporting the scheduling request and the HARQ feedback at the same time. Under the condition of not increasing the modulation order, the problem that the transmission scheduling request and the HARQ feedback cannot be reported simultaneously is solved, the HARQ _ ACK data has 1bit or 2 bits, and the data is transmitted on the RE of the data after being modulated; the uplink scheduling request is transmitted on the reference signal so that HARQ _ ACK and the uplink scheduling request do not collide.

Description

Method for simultaneously transmitting scheduling request and HARQ feedback
Technical Field
The invention belongs to the technical field of a fifth generation mobile communication PUCCH, and particularly relates to a method for simultaneously transmitting a scheduling request and HARQ feedback.
Background
The UE may need to report the scheduling request and HARQ _ ACK simultaneously. The current NR protocol 38213 is specified as follows:
scene one: if the UE is going to report the uplink scheduling request through PUCCH0, HARQ _ ACK is reported through PUCCH 1. The UE reports HARQ _ ACK only on PUCCH 1.
Scene two: if the UE is going to report a positive uplink scheduling request on the first PUCCH resource, using a format PUCCH1, and reporting a HARQ _ ACK on the second PUCCH resource, using a format PUCCH 1. Then HARQ ACK is reported on the first resource at this time. And if the UE is to report the negtive uplink scheduling request on the first PUCCH resource, using a format PUCCH1, and reporting the HARQ _ ACK on the second PUCCH resource by using a format PUCCH 1. Then HARQ ACK is reported on the second resource at this time. Two PUCCHs need to be solved at this time.
In the above two scenarios, simultaneous reporting of the uplink scheduling request and HARQ _ ACK cannot be supported well.
Disclosure of Invention
The invention aims to provide a method for simultaneously transmitting a scheduling request and HARQ feedback aiming at the defects of the prior art, and solves the problem that the scheduling request and the HARQ feedback cannot be simultaneously reported under the condition of not improving the modulation order.
A method for transmitting a scheduling request and HARQ feedback simultaneously, comprising the steps of:
s1: generating a base sequence of a PUCCH1 reference signal;
s2: a cyclic shift factor and a parameter are calculated,
Figure BDA0002480650550000011
mwian index representing a time domain spreading code;
s3: computing cyclic shift sequences
Figure BDA0002480650550000012
S4: obtaining a reference signal by orthogonal frequency spreading;
s5: and reporting the scheduling request and the HARQ feedback at the same time.
Further, step S1 is specifically: generating base sequences
Figure BDA0002480650550000013
Wherein u represents the group number of the base sequence and v represents the number within the group of the motif groups.
Further, step S2 is to calculate the cyclic shift factor α and the parameter, the value under PUCCH1 is fixed equal to 0, and m is calculated in αwiWhen the sending end needs to transmit the uplink scheduling request, mwi0, 1, 2 …; if not required mwi＝0。
Further, the orthogonal spreading in step S4 specifically includes:
Figure BDA0002480650550000021
the invention has the beneficial effects that: under the condition of not increasing the modulation order, the problem that the transmission scheduling request and the HARQ feedback cannot be reported simultaneously is solved, the HARQ _ ACK data has 1bit or 2 bits, and the data is transmitted on the RE of the data after being modulated; the uplink scheduling request is transmitted on the reference signal so that HARQ _ ACK and the uplink scheduling request do not collide.
Drawings
FIG. 1 is a block diagram of the process of the present invention.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 1, a method for simultaneously transmitting a scheduling request and HARQ feedback includes the following steps:
s1: generating base sequences for PUCCH1 reference signals
Figure BDA0002480650550000022
Wherein u represents the group number of the base sequence and v represents the number within the group of the motif groups;
calculating a cyclic shift factor α, and a parameter, the value under PUCCH1 being fixed equal to 0S 2;
Figure BDA0002480650550000023
mwian index representing a time domain spreading code; m iswiWhen the sending end needs to transmit the uplink scheduling request, mwi0, 1, 2 …; if not required mwi＝0；m0Is the initial cyclic shift value of the upper layer configuration; m isCSWhen the PUCCH format 1 is 0, the PUCCH format is fixed to 0;
Figure BDA0002480650550000024
indicating the time slot number of the wireless frame; l represents the number of the OFDM symbol for transmitting PUCCH, and l of the OFDM symbol for the first transmission PUCCH is 0; l' represents a symbol number, the relative position being the first PUCAn OFDM symbol of the CH;
Figure BDA0002480650550000025
indicating that there are 12 subcarriers in a resource block.
At the sending end, if an uplink scheduling request needs to be passed, mwi0, 1, 2 …; i.e. the index m of the reference signal in table 1 below. If no uplink scheduling request needs to be transmitted, mwi＝0。
On the other hand, at the receiving end, if the reference signal m is calculatedwiIf not 0, there is an uplink scheduling request.
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
RS data RS RS RS RS RS RS
m＝0 m＝1 m＝2 m＝3 m＝4 m＝5 m＝6
TABLE 1
S3: computing cyclic shift sequences
Figure BDA0002480650550000031
Figure BDA0002480650550000032
S4: orthogonal spread spectrum
Figure BDA0002480650550000033
A reference signal is obtained.
Figure BDA0002480650550000034
Indicating that one resource block has 12 subcarriers; n represents a subcarrier number ranging from 0 to 11; m' has two conditions, wherein the frequency hopping in the time slot is equal to 0, and the frequency hopping in the time slot is equal to 0 or 1;
Figure BDA0002480650550000035
the total number of pilot symbols under the condition that the value of m' is fixed can be obtained by looking up the following table 2; it is determined by 2 factors, factor 1, the number of symbols occupied by PUCCH. Factor 2, whether frequency hopping is performed within a time slot; m represents
Figure BDA0002480650550000036
Pilot symbol under fixed value-taking conditionThe number of the number;
Figure BDA0002480650550000037
is the calculated cyclic shift sequence; w is ai(m) is an orthogonal spreading code,
Figure BDA0002480650550000038
can be obtained by referring to table 3 below.
Figure BDA0002480650550000041
TABLE 2 PUCCH Pilot symbol count
Figure BDA0002480650550000042
Figure BDA0002480650550000043
TABLE 3 orthogonal spreading sequences
Figure BDA0002480650550000044
S5: and reporting the scheduling request and the HARQ feedback at the same time.
The method for simultaneously transmitting the scheduling request and the HARQ feedback solves the problem that the scheduling request and the HARQ feedback cannot be simultaneously reported under the condition of not increasing the modulation order, the HARQ _ ACK data has 1bit or 2 bits, and the data is transmitted on the RE of the data after being modulated; the uplink scheduling request is transmitted on the reference signal so that HARQ _ ACK and the uplink scheduling request do not collide.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. A method for transmitting scheduling request and HARQ feedback simultaneously, comprising the steps of:
s1: generating a base sequence of a PUCCH1 reference signal;
s2: calculating a cyclic shift factor and a parameter;
Figure FDA0002480650540000011
mwian index representing a time domain spreading code;
s3: computing cyclic shift sequences
Figure FDA0002480650540000012
S4: obtaining a reference signal by orthogonal frequency spreading;
s5: and reporting the scheduling request and the HARQ feedback at the same time.
2. The method for simultaneously transmitting a scheduling request and HARQ feedback according to claim 1, wherein the step S1 specifically comprises: generating base sequences
Figure FDA0002480650540000013
Wherein u represents the group number of the base sequence and v represents the number within the group of the motif groups.
3. The method of claim 1, wherein the step S2 is specifically to calculate the cyclic shift factor α and parameters, the values under PUCCH1 are fixed equal to 0, and m is calculated in αwiWhen the sending end needs to transmit the uplink scheduling request, mwi0, 1, 2 …; if not required mwi＝0。
4. The method for simultaneously transmitting a scheduling request and HARQ feedback according to claim 1, wherein the orthogonal spreading in step S4 specifically comprises:
Figure FDA0002480650540000014
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102835087A (en) * 2010-07-26 2012-12-19 Lg电子株式会社 Method and device for transmitting sounding reference signal and extended uplink control information in wireless communication system
CN104767595A (en) * 2014-01-07 2015-07-08 中兴通讯股份有限公司 HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station
US20190246432A1 (en) * 2018-02-07 2019-08-08 Qualcomm Incorporated Collision avoidance for scheduling requests and uplink control information
WO2019192539A1 (en) * 2018-04-04 2019-10-10 中兴通讯股份有限公司 Method and device for information transmission and information determination, storage medium, and electronic device
CN110545533A (en) * 2019-08-16 2019-12-06 中国信息通信研究院 internet of vehicles feedback resource configuration method and terminal equipment
CN111066280A (en) * 2018-04-05 2020-04-24 Lg 电子株式会社 Method and apparatus for transmitting/receiving wireless signal in wireless communication system
CN111092835A (en) * 2019-12-27 2020-05-01 锐捷网络股份有限公司 Sequence demodulation method, device, communication equipment and storage medium

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102835087A (en) * 2010-07-26 2012-12-19 Lg电子株式会社 Method and device for transmitting sounding reference signal and extended uplink control information in wireless communication system
CN104767595A (en) * 2014-01-07 2015-07-08 中兴通讯股份有限公司 HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station
US20190246432A1 (en) * 2018-02-07 2019-08-08 Qualcomm Incorporated Collision avoidance for scheduling requests and uplink control information
WO2019192539A1 (en) * 2018-04-04 2019-10-10 中兴通讯股份有限公司 Method and device for information transmission and information determination, storage medium, and electronic device
CN111066280A (en) * 2018-04-05 2020-04-24 Lg 电子株式会社 Method and apparatus for transmitting/receiving wireless signal in wireless communication system
CN110545533A (en) * 2019-08-16 2019-12-06 中国信息通信研究院 internet of vehicles feedback resource configuration method and terminal equipment
CN111092835A (en) * 2019-12-27 2020-05-01 锐捷网络股份有限公司 Sequence demodulation method, device, communication equipment and storage medium

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