CN110808821A - Method and device for solving uplink control information conflict - Google Patents
Method and device for solving uplink control information conflict Download PDFInfo
- Publication number
- CN110808821A CN110808821A CN201910945392.1A CN201910945392A CN110808821A CN 110808821 A CN110808821 A CN 110808821A CN 201910945392 A CN201910945392 A CN 201910945392A CN 110808821 A CN110808821 A CN 110808821A
- Authority
- CN
- China
- Prior art keywords
- ack
- nack
- time slot
- slot granularity
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Abstract
The application discloses a method for solving conflict of uplink control information, and the ACK/NACK based on time slot granularity and the ACK/NACK based on sub-time slot granularity are delayed to be sent when conflicting in time. The application also comprises the mobile terminal equipment for realizing the method. The method and the device solve the problem of collision of the uplink control information of multiple services.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a method and a device for resolving an uplink control information conflict.
Background
The Physical Downlink Shared Channel (PDSCH) and its corresponding hybrid automatic repeat request acknowledgement (HARQ-ACK) information feedback granularity in the R15 standard are both slot-level. Whereas HARQ-ACK for PDSCH of URLLC traffic in the R16 standard is transmitted at the virtual sub-slot level.
Different types of services may have a problem of Uplink Control Information (UCI) collision, such as UCI of eMBB service and UCI collision of URLLC service. For example, when HARQ-ACK 1 of the URLLC service and HARQ-ACK 2 of the URLLC service are transmitted in the long PUCCH format (i.e., PUCCH format 1) in two sub-slots, time overlap occurs with HARQ-ACK of the eMBB transmitted in the long PUCCH format, and at this time, reliability of the URLLC service is ensured while the eMBB service is influenced as little as possible.
Disclosure of Invention
The application provides a method and equipment for solving uplink control information collision, which solve the problem of uplink control information collision of multiple services.
The embodiment of the application provides a method for solving uplink control information conflict, which comprises the following steps: and when the ACK/NACK based on the time slot granularity and the ACK/NACK based on the sub-time slot granularity collide on time, delaying the sending of the ACK/NACK based on the time slot granularity.
Preferably, the transmission is delayed, and the delay time is an integer multiple of the duration of 1 time slot.
Preferably, whether the ACK/NACK based on the slot granularity and the ACK/NACK based on the sub-slot granularity collide is identified again every 1 slot duration delay.
Further preferably, the delayed number of slots exceeds a threshold value, and the slot granularity based ACK/NACK is discarded.
In the embodiments of the present application, it is particularly applicable to: the slot granularity based ACK/NACK is feedback for eMBB traffic.
In the embodiments of the present application, it is particularly applicable to: the sub-slot granularity based ACK/NACK is feedback for URLLC traffic.
The embodiment of the present application further provides a terminal device, which is used in the method according to any one of the embodiments of the present application, wherein in the terminal device, when ACK/NACK based on slot granularity and ACK/NACK based on sub-slot granularity temporally collide, the ACK/NACK based on slot granularity is sent in a delayed manner.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the HARQ-ACK of the eMMC business is in a time slot level, the HARQ-ACK of the URLLC business can be in a sub-time slot level, when a plurality of HARQ-ACKs of the URLLC business and the HARQ-ACK of the eMMC business are overlapped in time in one time slot, the scheme of the invention can eliminate conflict, and the method has the advantage that the eMMC business is influenced as little as possible while the URLLC business is not influenced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of two PUCCHs and one PUCCH being time-overlapped;
fig. 2 is a diagram illustrating a correspondence relationship between a PUCCH and a PDSCH;
FIG. 3 is a diagram illustrating delayed transmission of the slot granularity-based ACK/NACK;
FIG. 4 is a diagram illustrating the slot granularity-based ACK/NACK being sent with continued delay;
FIG. 5 is a diagram illustrating the discarding of the slot granularity based ACK/NACK;
fig. 6 shows an embodiment of a mobile terminal device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Consider a communication system comprised of network devices and terminal devices. One network device can simultaneously transmit and receive data with a plurality of terminal devices. The network device includes a network data unit and a network control unit. The terminal device includes a terminal data unit and a terminal control unit. The network data unit and the terminal data unit transmit data through a downlink data shared channel (PDSCH) and an uplink data shared channel (PUSCH). And the network control unit and the terminal control unit exchange control information through a downlink control channel (PDCCH) and an uplink control channel (PUCCH). Wherein, the PDCCH transmits Downlink Control Information (DCI) and controls the specific transmission formats of the PDSCH, the PUSCH and the PUCCH. And after the terminal data unit finishes data receiving, the terminal control unit feeds back whether the data is correctly received or not to the network equipment according to the control information sent by the network control unit and the data receiving condition of the terminal data unit. Specifically, information such as ACK/NACK is carried on a PUCCH (uplink control channel).
Fig. 1 is a diagram illustrating a time overlap of two PUCCHs and one PUCCH.
For example, the horizontal direction of the diagram represents 14 time domain symbols within one slot, and the vertical direction represents the frequency domain. The ACK/NACK 1 and the ACK/NACK 2 are responses of URLLC services, are carried by PUCCH, respectively occupy 5 time domain symbols, at the moment, the time slot is divided into 2 virtual sub-slots, and the ACK/NACK information of each URLLC service is respectively positioned in 1 virtual sub-slot.
ACL/NACK 3 is an acknowledgement of the eMBB service, and is carried by PUCCH, and the PUCCHs of the two services are separated in the frequency domain and overlap in time.
Fig. 2 is a diagram illustrating a correspondence relationship between a PUCCH and a PDSCH.
Considering that fig. 2 is the same as the application scenario of fig. 1, the PDSCH 1 carries eMBB traffic, and the PDSCH 2 and PDSCH 3 carry URLLC traffic. The scheduling relationship of the uplink data indicates that the acknowledgement for PDSCH 1 is at AN3 (i.e., ACK/NACK 3 in fig. 1), which is based on slot granularity; the acknowledgements for PDSCH 2 and PDSCH 3 are located at AN1 and AN2 (i.e., ACK/NACK 1 and ACK/NACK 2 in fig. 1), which are based on the virtual sub-slot granularity. The line with AN arrow in the figure indicates the correspondence between PDSCH-x and AN x.
In this document, the slot granularity-based ACK/NACK refers to a resource occupied by HARQ-ACK information of a service, and corresponds to 1 or more slots, for example, only one HARQ-ACK information is contained in 1 slot, and for example, a resource carrying 1 HARQ-ACK information spans multiple slots.
In this document, the sub-slot granularity-based ACK/NACK refers to a resource occupied by HARQ-ACK information of a service, and corresponds to 1 or more sub-slots, for example, only one HARQ-ACK information is contained in 1 sub-slot, and for example, a resource carrying 1 HARQ-ACK information spans multiple sub-slots. A sub-slot contains only a portion of the time domain symbols in the slot, i.e., 1 slot can contain multiple sub-slots. The sub-slots are virtual.
Fig. 3 is a diagram illustrating delayed transmission of the slot granularity-based ACK/NACK.
The embodiment of the application provides a method for solving uplink control information conflict, which comprises the following steps:
step 10, identifying whether the ACK/NACK based on the slot granularity and the ACK/NACK based on the sub-slot granularity conflict in the multi-service response message ACK/NACK (that is, the occupied time periods overlap, or are referred to as time overlap);
and step 20, when the ACK/NACK based on the time slot granularity and the ACK/NACK based on the sub-time slot granularity conflict in time, delaying to send the ACK/NACK based on the time slot granularity.
When the terminal equipment sends the ACK/NACK fed back based on the virtual sub-slot granularity, the terminal equipment recognizes the conflict with the ACK/NACK fed back based on the slot granularity, and the terminal automatically delays the ACK/NACK fed back based on the slot granularity by one slot feedback.
Fig. 4 is a diagram illustrating the slot granularity-based ACK/NACK transmission with continued delay.
The method of the present application, further comprises step 30.
And step 30, preferably, identifying whether the ACK/NACK based on the time slot granularity and the ACK/NACK based on the sub-time slot granularity conflict again every 1 time slot duration delay.
And when the ACK/NACK fed back by the virtual sub-slot granularity still conflicts after delaying one time slot, continuously delaying the feedback of one time slot. For example, PDSCH4 is a URLLC service, the corresponding response message occupies AN4, and AN1 delays by 1 slot duration and overlaps with AN 4. Thus, see AN1 delayed again by 1 slot duration.
Preferably, the transmission is delayed, and the delay time is an integer multiple of the duration of 1 time slot.
Fig. 5 is a diagram illustrating the discarding of the slot granularity based ACK/NACK.
The method of the present application, further comprises step 40.
And step 40, discarding the ACK/NACK based on the time slot granularity when the number of the delayed time slots exceeds a threshold value.
For example, after delaying the HARQ ACK/NACK feedback based on the sub-slot granularity by a maximum of N slots, the HARQ ACK/NACK feedback is discarded if there is still a collision.
N is the threshold value, is an integer greater than 0, and may be 2,3, 4, 5, or 6.
For example, when N is 2, the AN1 is delayed again, and overlaps with the AN5 in the 3 rd slot, the PDSCH5 also carries the URLLC traffic, and the AN5 is the PUCCH where the response information corresponding to the PDSCH5 is located.
Fig. 6 shows an embodiment of a mobile terminal device according to the present invention.
The embodiment of the present application further provides a terminal device 50, which is used in the method according to any embodiment of the present application, where in the terminal device, when ACK/NACK based on slot granularity and ACK/NACK based on sub-slot granularity temporally collide, the ACK/NACK based on slot granularity is sent in a delayed manner.
The receiving module 51 is configured to receive downlink data, such as a PDSCH. The downlink data includes data of a plurality of services, such as URLLC service and eMBB service. The receiving module is further configured to receive downlink control information, where the downlink control information is used to schedule PDSCH (multiple PDSCH-x, x is 1,2,3, and …) of the multiple services, and indicate a resource location for sending ACK/NACK information.
A determining module 52, configured to determine ACK/NACK information AN-x corresponding to the PDSCH-x, and further configured to identify whether ACK/NACK based on slot granularity and ACK/NACK based on sub-slot granularity collide (or are time-overlapped).
A sending module 53, configured to send response information of the downlink data, that is, AN-x. That is, the apparatus is configured to transmit the slot-granularity-based ACK/NACK and/or the sub-slot-granularity-based ACK/NACK, and specifically, transmit, delay transmission, or discard the slot-granularity-based ACK/NACK according to the recognition result of the determination module.
The terminal equipment is used for realizing the method for solving the conflict between the ACK/NACK based on the time slot granularity feedback and the ACK/NACK based on the sub-time slot granularity feedback, and the working process of the determining module is as follows:
when the terminal sends the ACK/NACK fed back based on the virtual sub-slot granularity, the determining module identifies that the ACK/NACK conflicts with the ACK/NACK fed back based on the slot granularity, and then the ACK/NACK fed back based on the slot granularity is delayed by one slot feedback.
And after delaying one time slot, when the determining module identifies that the ACK/NACK fed back by the virtual sub-time slot granularity still conflicts with the ACK/NACK fed back based on the time slot granularity, determining to continue delaying the ACK/NACK fed back based on the time slot granularity by one time slot feedback.
And after delaying N time slots, if the determining module still identifies the conflict, determining to abandon the ACK/NACK feedback based on the time slot granularity feedback.
The technical scheme of the present application, including the embodiments of the method or the device, is particularly applicable to the situation of transmitting the long PUCCH format (i.e., PUCCH format 1).
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A method for resolving uplink control information conflict is characterized in that,
and when the ACK/NACK based on the time slot granularity and the ACK/NACK based on the sub-time slot granularity collide on time, delaying the sending of the ACK/NACK based on the time slot granularity.
2. The method of claim 1,
and the delay time is integral multiple of the time length of 1 time slot.
3. The method of claim 1 or 2,
and identifying whether the ACK/NACK based on the time slot granularity and the ACK/NACK based on the sub-time slot granularity conflict or not again every time the time is delayed by 1 time slot duration.
4. The method of claim 1 or 2,
and if the number of delayed time slots exceeds a threshold value, giving up the ACK/NACK based on the time slot granularity.
5. The method of claim 1 or 2,
the slot granularity based ACK/NACK is feedback for eMBB traffic.
6. The method of claim 1 or 2,
the sub-slot granularity based ACK/NACK is feedback for URLLC traffic.
7. A terminal device for use in the method of claims 1 to 6,
and when the ACK/NACK based on the time slot granularity and the ACK/NACK based on the sub-time slot granularity collide on time, delaying the sending of the ACK/NACK based on the time slot granularity.
8. The terminal device of claim 7, wherein the terminal device comprises a receiving module,
the receiving module is used for receiving downlink data and/or downlink control information;
the downlink data comprises data of a plurality of services;
the downlink control information is used for scheduling the PDSCHs of the multiple services and indicating the resource position for sending ACK/NACK information.
9. The terminal device according to claim 7 or 8, wherein the terminal device comprises a determination module,
the determining module is used for determining ACK/NACK information corresponding to PDSCHs of various services and identifying whether the ACK/NACK based on the time slot granularity conflicts with the ACK/NACK based on the sub-time slot granularity.
10. The terminal device of claim 9, wherein the terminal device further comprises a transmitting module,
and the sending module is used for sending the response information of the downlink data and sending, delaying or giving up the ACK/NACK based on the time slot granularity according to the identification result of the determining module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910945392.1A CN110808821A (en) | 2019-09-30 | 2019-09-30 | Method and device for solving uplink control information conflict |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910945392.1A CN110808821A (en) | 2019-09-30 | 2019-09-30 | Method and device for solving uplink control information conflict |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110808821A true CN110808821A (en) | 2020-02-18 |
Family
ID=69488320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910945392.1A Pending CN110808821A (en) | 2019-09-30 | 2019-09-30 | Method and device for solving uplink control information conflict |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110808821A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2249840A1 (en) * | 1997-10-14 | 1999-04-14 | Lucent Technologies Inc. | Method for conflict resolution in a multiple access system for communications networks |
| KR20090020159A (en) * | 2007-08-22 | 2009-02-26 | 삼성전자주식회사 | Method and apparatus for transmitting ack/nack information in orthogonal frequency division multiplexing access systems based on time-division duplexing |
| WO2018204730A1 (en) * | 2017-05-03 | 2018-11-08 | Intel IP Corporation | Handling collision for mini-slot-based and slot-based transmission |
| WO2019160741A1 (en) * | 2018-02-14 | 2019-08-22 | Idac Holdings, Inc. | Methods, apparatus, and system using multiple antenna techniques for new radio (nr) operations in unlicensed bands |
-
2019
- 2019-09-30 CN CN201910945392.1A patent/CN110808821A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2249840A1 (en) * | 1997-10-14 | 1999-04-14 | Lucent Technologies Inc. | Method for conflict resolution in a multiple access system for communications networks |
| KR20090020159A (en) * | 2007-08-22 | 2009-02-26 | 삼성전자주식회사 | Method and apparatus for transmitting ack/nack information in orthogonal frequency division multiplexing access systems based on time-division duplexing |
| WO2018204730A1 (en) * | 2017-05-03 | 2018-11-08 | Intel IP Corporation | Handling collision for mini-slot-based and slot-based transmission |
| WO2019160741A1 (en) * | 2018-02-14 | 2019-08-22 | Idac Holdings, Inc. | Methods, apparatus, and system using multiple antenna techniques for new radio (nr) operations in unlicensed bands |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105743619B (en) | Method and apparatus for hybrid automatic repeat request (HARQ) transmission | |
| US9185722B2 (en) | Contention based access optimization | |
| US10333654B2 (en) | Method for supporting HARQ in communication system using unlicensed frequency band and device having applied same | |
| CN110505697B (en) | Transmission method, terminal and base station for hybrid automatic repeat request | |
| CA3148089C (en) | Method for scheduling retransmissions for configured grants in nr-unlicensed | |
| AU2020205913A1 (en) | Method executed by user equipment, and user equipment | |
| CN111193578B (en) | Method and system for triggering HARQ-ACK feedback information and method and system for sending HARQ-ACK feedback information | |
| US11864199B2 (en) | Methods for data transmission and user equipment | |
| EP2201717A2 (en) | User specific load balancing | |
| CN111865501B (en) | Data retransmission method, data receiving method, terminal and network equipment | |
| CN110506446B (en) | Method and apparatus for subframe scheduling | |
| US10667291B2 (en) | Uplink retransmitted data sending method, apparatus, and system | |
| CN114451038A (en) | Uplink control information for uplink configuration grant transmission | |
| CN114208076A (en) | Sharing HARQ processes by multiple configuration grant resources | |
| CN116982279A (en) | Indication of HARQ-ACK codebook for retransmission | |
| CN103532658A (en) | SR processing method, eNB and UE | |
| CN110808821A (en) | Method and device for solving uplink control information conflict | |
| US20210281366A1 (en) | Method of Sidelink Communications by User Equipment | |
| CN111435865A (en) | Hybrid automatic repeat request response method, signaling and equipment | |
| CN111294843B (en) | Information sending method, user terminal and computer readable storage medium | |
| CN116058053A (en) | Method and apparatus for managing transmissions on a shared spectrum channel | |
| EP4020857A1 (en) | Resource conflict handling method and apparatus, terminal and storage medium | |
| EP3979534B1 (en) | Information processing method and device, equipment, and storage medium | |
| CA2547910C (en) | Apparatus and method for use in effecting automatic repeat requests in wireless multiple access communications systems | |
| CN107437980A (en) | Data transmission method and device between a kind of station in carrier aggregation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200218 |