WO2021139827A1

WO2021139827A1 - Harq-ack feedback information triggering method and system, and harq-ack feedback information sending method and system

Info

Publication number: WO2021139827A1
Application number: PCT/CN2021/075636
Authority: WO
Inventors: 周欢
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2020-01-07
Filing date: 2021-02-05
Publication date: 2021-07-15
Also published as: CN111193578A; CN111193578B

Abstract

Disclosed are a triggering method, sending method, triggering system and sending system for HARQ-ACK feedback information, and a storage medium and an electronic device. The triggering method comprises: configuring one or more group indexes for an SPS PDSCH in advance, the group index(es) being a unique identifier of the HARQ-ACK feedback information; sending downlink data to a UE by using the SPS PDSCH; determining whether the HARQ-ACK feedback information identified by the group index(es) and fed back by the UE is received; and if not, sending DCI to the UE, the DCI comprising the group index(es), and the group index(es) being used for triggering the UE to resend the HARQ-ACK feedback information. Therefore, when the SPS PDSCH HARQ-ACK of a low-priority service is discarded or cannot be sent, a gNB can quickly and flexibly use a PDCCH to inform the UE to resend the discarded HARQ-ACK feedback information.

Description

HARQ-ACK feedback information triggering method, sending method and system

This application claims the priority of Chinese patent application 202010014855.5 whose filing date is January 7, 2020. This application quotes the full text of the aforementioned Chinese patent application.

Technical field

The present invention relates to the field of communication technology, and in particular to a triggering method, sending method, triggering system, sending system, storage medium and electronic equipment of HARQ-ACK feedback information.

Background technique

Hybrid Automatic Repeat reQuest (HARQ) is a technology that combines Forward Error Correction (FEC) and Automatic Repeat reQuest (ARQ) methods. If the information is received without error, the information receiving end will send an Acknowledgement (ACK) to the information sending end, and the information sending end will send the next data packet after receiving the ACK. If an error occurs, the information receiving end will discard the data packet and send a negative acknowledgment (Negative ACKnowledgment, NACK) to the information sending end. After receiving the NACK, the information sending end will resend the same data.

Semi-Persistent Scheduling (SPS) allows semi-static configuration of radio resources and periodically allocates the resources to a specific information receiver, such as user equipment (UE). Unlike dynamic scheduling, SPS requires The physical downlink control channel (Physical Downlink Control Channel, PDCCH) designates each transmission time interval (Transmission Time Interval, TTI) to allocate radio resources to the UE once.

As shown in Figure 1, in 5G NR (New Radio), the units of K0 and K1 are slots, and K0 represents the time interval between PDSCH (Physical Downlink Shared Channel) and PDCCH. The PDSCH is used to transmit downlink data, and the PDCCH is used to transmit DCI (Downlink Control Information). K1 represents the time interval between HARQ-ACK feedback and PDSCH.

The length of the 5G NR dynamic HARQ-ACK codebook is determined based on the count (counter) Downlink Assignment Index (DAI) and the total downlink assignment index (ie total DAI). For a certain PUCCH (Physical Uplink Control) Channel, physical uplink control channel), the total DAI in the NR is the total number of DCI sent by the base station in all cells from the first DAI time to the current DAI time in the physical downlink control channel listening time set. The count DAI is the cumulative count of the number of DCI times from the first cell to the current cell sent by the base station at the current DAI time in the physical downlink control channel listening time set, and the sum of the total DAI corresponding to the previous DAI time.

Based on the above description, although 5G NR can adopt a dynamic codebook feedback scheme, when there are both high priority services and low priority services that need to be transmitted at the same time, that is, if the SPS PDSCH HARQ-ACK feedback information of the low priority services is higher than that of high priority services. When the uplink transmissions of priority services overlap in the time domain, the SPS PDSCH HARQ-ACK feedback information of the low priority services will be discarded due to the low priority or cannot be sent to the base station (gNB), which will cause gNB It is impossible to know whether the PDSCH is correctly decoded on the user equipment side, which reduces system throughput and performance, and affects user experience.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the SPS PDSCH of the low priority service in the prior art. If the HARQ-ACK feedback information overlaps with the uplink transmission of the high priority service in the time domain, the SPS PDSCH of the low priority service The HARQ-ACK feedback information is discarded because of its low priority. A trigger method, transmission method, trigger system, transmission system, storage medium, and electronic device for HARQ-ACK feedback information are provided.

The present invention solves the above technical problems through the following technical solutions:

A method for triggering HARQ-ACK feedback information. The triggering method is applied to gNB, and the triggering method includes the following steps:

Pre-configure one or more group indexes for the SPS PDSCH, where the group indexes are the unique identifiers of the HARQ-ACK feedback information;

Using the SPS PDSCH to send downlink data to the UE;

Judging whether the HARQ-ACK feedback information identified by the group index fed back by the UE is received in the feedback slot;

If not, send DCI to the UE through the PDCCH, where the DCI includes a group index, and the group index is used to trigger the UE to retransmit the HARQ-ACK feedback information identified by the group index.

Preferably, the DCI further includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication.

Preferably, the step of pre-configuring one or more group indexes for SPS PDSCH includes:

Pre-configure one or more group indexes for SPS PDSCH through high-layer signaling;

or,

The SPS PDSCH activation command transmitted in the PDCCH indicates one or more group indexes corresponding to the SPS PDSCH.

Preferably, after pre-configuring one or more group indexes for the SPS PDSCH, the method further includes the following steps:

Setting a comprehensive index identifier, where the comprehensive index identifier is used to identify one or more of the group indexes;

The DCI includes a comprehensive index identifier, and the comprehensive index identifier is used to trigger the UE to retransmit one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier.

A method for sending HARQ-ACK feedback information, the sending method is applied to a UE, and the sending method includes the following steps:

Receiving configuration information of a group index, where the group index is configured to uniquely identify the HARQ-ACK feedback information;

Receive the downlink data sent by gNB through SPS PDSCH;

Judging whether the DCI sent by the gNB is received, where the DCI includes the group index;

If yes, re-send the HARQ-ACK feedback information identified by the group index to the gNB according to the group index.

Preferably, the DCI further includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication;

The sending method further includes:

When the DCI sent by the gNB is received, the HARQ-ACK feedback information corresponding to the DCI indication is further fed back to the gNB according to the first control information.

Preferably, the configuration information of the group index further includes a comprehensive index identifier, and the comprehensive index identifier is used to identify one or more of the group indexes;

The sending method further includes:

When receiving the DCI that includes the comprehensive index identifier sent by the gNB, one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier is fed back to the gNB.

A triggering system for HARQ-ACK feedback information, the triggering system is applied to gNB, and the triggering system includes:

The configuration module is configured to pre-configure one or more group indexes for the SPS PDSCH, where the group indexes are the unique identifiers of the HARQ-ACK feedback information;

The data sending module is used to send downlink data to the UE by using the SPS PDSCH;

The first judgment module is configured to judge whether the HARQ-ACK feedback information identified by the group index fed back by the UE is received in the feedback time slot;

If the judgment result of the first judgment module is no, then a trigger module is called, the trigger module is used to send DCI to the UE through the PDCCH, the DCI includes a group index, and the group index is used to trigger the UE Resending the HARQ-ACK feedback information identified by the group index.

Preferably, the configuration module is used to pre-configure one or more group indexes for the SPS PDSCH through high-layer signaling; or, the configuration module is used to instruct the SPS through the activation command of the SPS PDSCH transmitted in the PDCCH One or more group indexes corresponding to the PDSCH.

Preferably, the trigger system further includes a comprehensive index identification setting module, the comprehensive index identification setting module is used to set a comprehensive index identification, and the comprehensive index identification is used to identify one or more of the group indexes;

A HARQ-ACK feedback information transmission system, the transmission system is applied to a UE, and the transmission system includes:

A configuration information receiving module, configured to receive configuration information of a group index, where the group index is configured to uniquely identify the HARQ-ACK feedback information;

The data receiving module is used to receive the downlink data sent by the gNB through SPS PDSCH;

A second judgment module, configured to judge whether the data receiving module also receives the DCI sent by the gNB, where the DCI includes the group index;

If so, call a feedback module, and the feedback module is configured to resend the HARQ-ACK feedback information identified by the group index to the gNB according to the group index.

When the data receiving module also receives the DCI sent by the gNB, the feedback module also feeds back the HARQ-ACK feedback information corresponding to the DCI indication to the gNB according to the first control information.

The feedback module feeds back one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier to the gNB.

An electronic device comprising a memory, a processor, and a computer program stored on the memory and running on the processor. The processor implements the steps of the aforementioned HARQ-ACK feedback information triggering method when the processor executes the computer program, or implements Steps of the foregoing HARQ-ACK feedback information sending method.

A computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements the steps of the aforementioned HARQ-ACK feedback information triggering method, or implements the aforementioned HARQ-ACK feedback information sending method A step of.

The positive progress effect of the present invention is that the HARQ-ACK feedback information trigger method, transmission method, trigger system, transmission system, storage medium and electronic device provided by the present invention pre-configure one or more group indexes for the SPS PDSCH. The group index is the unique identifier of the HARQ-ACK feedback information; the SPS PDSCH is used to send downlink data to the UE; it is judged whether the HARQ-ACK feedback information identified by the group index is received by the UE in the feedback time slot If not, send DCI to the UE through the PDCCH, the DCI includes a group index, and the group index is used to trigger the UE to retransmit the HARQ-ACK feedback information corresponding to the group index. Therefore, when the SPS PDSCH HARQ-ACK of the low-priority service is discarded or cannot be sent, the gNB can quickly and flexibly use the PDCCH to notify the UE (user equipment) to resend the discarded HARQ-ACK feedback information, ensuring HARQ-ACK The feedback information is not missed.

Further, by setting a comprehensive index identifier to represent one or more group indexes, the number of bits used to indicate the SPS PDSCH HARQ-ACK group index in the DCI can be omitted, thereby saving channel resources.

Description of the drawings

Fig. 1 is a schematic diagram of a downlink scheduling time indication in the prior art.

FIG. 2 is a flowchart of a method for triggering HARQ-ACK feedback information according to Embodiment 1 of the present invention.

FIG. 3 is a schematic diagram of parameter configuration of SPS PDSCH according to Embodiment 1 of the present invention.

4 is a schematic diagram of using a group index to trigger HARQ-ACK feedback information according to Embodiment 2 of the present invention.

FIG. 5 is a flowchart of a method for sending HARQ-ACK feedback information according to Embodiment 3 of the present invention.

FIG. 6 is a structural block diagram of a system for triggering HARQ-ACK feedback information according to Embodiment 5 of the present invention.

FIG. 7 is a structural block diagram of a system for triggering HARQ-ACK feedback information according to Embodiment 6 of the present invention.

FIG. 8 is a structural block diagram of a HARQ-ACK feedback information sending system according to Embodiment 7 of the present invention.

FIG. 9 is a schematic structural diagram of an electronic device according to Embodiment 9 of the present invention.

Detailed ways

The present invention will be further described by way of examples below, but the present invention is not limited to the scope of the described examples.

It should be noted that the execution subject of the HARQ-ACK feedback information sending method provided by the embodiment of the present invention may be a separate chip, chip module or UE, or may be a chip or chip module integrated in the UE. The execution subject of the HARQ-ACK feedback information triggering method provided by the embodiment of the present invention may be a separate chip, a chip module or a gNB, or a chip or a chip module integrated in the gNB.

The HARQ-ACK feedback information sending system described in the embodiment of the present invention may specifically be a separate chip, a chip module or a UE, or may be a chip or a chip module integrated in the UE. The various modules/units included in the HARQ-ACK feedback information sending system may be software modules/units, hardware modules/units, or part software modules/units and part hardware modules/units. For example, for various devices and products that are applied to or integrated in a chip, the various modules/units contained therein can be implemented in the form of hardware such as circuits, or at least part of the modules/units can be implemented in the form of software programs. Runs on the integrated processor inside the chip, and the remaining part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the chip module, each of the modules/units contained in it can use circuits, etc. It is realized by hardware, different modules/units can be located in the same component (such as chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units can be realized in the form of a software program, and the software program runs For the processor integrated inside the chip module, the remaining part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the UE, each module/unit contained in it can be implemented by hardware such as circuits Different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least some of the modules/units can be implemented in the form of a software program, and the software program runs on the UE The internal integrated processor, and the remaining part of the modules/units can be implemented by hardware such as circuits.

The HARQ-ACK feedback information trigger system involved in the embodiment of the present invention may specifically be a separate chip, a chip module or a gNB, or a chip or a chip module integrated in the gNB. The various modules/units included in the HARQ-ACK feedback information trigger system may be software modules/units, hardware modules/units, or part software modules/units and part hardware modules/units. For example, for various devices and products that are applied to or integrated in a chip, the various modules/units contained therein can be implemented in the form of hardware such as circuits, or at least part of the modules/units can be implemented in the form of software programs. Runs on the integrated processor inside the chip, and the remaining part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the chip module, each of the modules/units contained in it can use circuits, etc. It is realized by hardware, different modules/units can be located in the same component (such as chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units can be realized in the form of a software program, and the software program runs For the processor integrated inside the chip module, the remaining part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the gNB, each module/unit contained in it can be implemented by hardware such as circuits Different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least part of the modules/units can be implemented in the form of a software program, which runs on gNB The internal integrated processor, and the remaining part of the modules/units can be implemented by hardware such as circuits.

Example 1

This embodiment provides a method for triggering HARQ-ACK feedback information. The triggering method is applied to gNB. As shown in FIG. 2, the triggering method may include the following steps:

Step S10: Pre-configure one or more group indexes for the SPS PDSCH, where the group indexes are the unique identifiers of the HARQ-ACK feedback information;

Step S11: Use the SPS PDSCH to send downlink data to the UE;

Step S12: Determine whether the HARQ-ACK feedback information identified by the group index that is fed back by the UE is received in the feedback time slot;

If not, perform step S13: send DCI to the UE through the PDCCH, where the DCI includes a group index, and the group index is used to trigger the UE to resend the HARQ-ACK feedback information identified by the group index.

If yes, you can continue to perform step S11.

Further, the DCI further includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication.

Those skilled in the art can understand that the content of the DCI existing indication refers to information based on the general functions of DCI in the prior art, such as: SPS PDSCH scheduling information, SPS PDSCH activation command, etc.

Further, the step S10 may be performed by the following steps: one or more group indexes are pre-configured for the SPS PDSCH through high-layer signaling; or, the activation command of the SPS PDSCH transmitted in the PDCCH indicates the corresponding SPS PDSCH One or more group indexes.

In addition, in this embodiment, the SPS PDSCH may also be pre-configured with parameters such as the duty cycle, the start symbol, the symbol length, the HARQ-ACK feedback information and the offset time slot of the SPS PDSCH.

In a non-limiting embodiment, as shown in Figure 3, SPS PDSCH configuration i refers to the configuration mode of SPS PDSCH can be written as configuration i, SPS PDSCH HARQ-ACK group i refers to the pair of SPS identified by group index i HARQ-ACK feedback information for PDSCH feedback, where i is a positive integer.

For example: SPS PDSCH configuration method 1 can be: the working period is 2 slots (time slots), the slot offset is 0, the start symbol is 1, and the symbol length is 4 symbols. The HARQ-ACK feedback corresponding to the SPS PDSCH of the configuration method 1 and the time slot offset of the SPS PDSCH are K1=2slot. Configure or indicate the HARQ-ACK feedback information of the SPS PDSCH as belonging to SPS PDSCH HARQ-ACK group 0 (group index 0) and group 1 (group index 1).

SPS PDSCH configuration mode 2 can be: the duty cycle is 5 slots, the slot offset is 1, the start symbol is 3, and the length is 4 symbols. The HARQ-ACK feedback corresponding to the SPS PDSCH of the configuration method 2 and the time slot offset of the SPS PDSCH are K1=1 slot. Configure or indicate the HARQ-ACK feedback information of the SPS PDSCH as belonging to SPS PDSCH HARQ-ACK group 0 (group index 0) and group 2 (group index 2).

Based on this, if the DCI sent to the UE through the PDCCH includes the group index 1, the UE may be triggered to re-send the HARQ-ACK feedback information of the SPS PDSCH using the configuration method 1 identified by the group index 1. If the DCI sent to the UE through the PDCCH contains a group index of 0, the UE can be triggered to re-send the HARQ-ACK feedback information of the SPS PDSCH in configuration mode 1 identified by the group index 0, and the group index 0 identifies the HARQ-ACK feedback information of the SPS PDSCH in configuration mode 2.

When the HARQ-ACK feedback information trigger method provided in this embodiment is executed, when the SPS PDSCH HARQ-ACK of the low priority service is discarded or cannot be sent, the gNB can quickly and flexibly use the PDCCH to notify the UE (user equipment) to resend The discarded HARQ-ACK feedback information ensures that the HARQ-ACK feedback information is not missed.

Example 2

This embodiment provides a method for triggering HARQ-ACK feedback information. The trigger method is a further improvement on the basis of Embodiment 1. After pre-configured one or more group indexes for SPS PDSCH, a comprehensive index identifier can be set, so The comprehensive index identifier is used to identify one or more of the group indexes;

Based on this, the DCI sent to the UE through the PDCCH may also include a comprehensive index identifier, and the comprehensive index identifier is used to trigger the UE to retransmit one or more HARQ corresponding to the group index identified by the comprehensive index identifier. -ACK feedback information.

Preferably, a mutual correspondence table between a comprehensive index identifier and a group index can be configured through RRC (Radio Resource Control). For example, a corresponding table as shown in Table 1 can be set.

Table 1

综合索引标识Comprehensive index identification	组索引Group index
00	NoneNone
11	0&10&1
22	1&21&2
33	0&1&20&1&2

Among them, the comprehensive index identification 0 does not identify any group index, the comprehensive index identification 1 can identify the group index 0 and the group index 1, the comprehensive index identification 2 can identify the group index 1 and the group index 2, and the comprehensive index identification 3 can identify the group index 0, Group index 1 and group index 2.

In a non-limiting implementation, as shown in Figure 4, SPS PDSCH configuration i refers to the configuration of SPS PDSCH can be written as configuration i, SPS PDSCH HARQ-ACK group i refers to the pair of SPS identified by group index i HARQ-ACK feedback information for PDSCH feedback, SPS PDSCH that was not sent successfully HARQ-ACK group i refers to the HARQ-ACK feedback information for SPS PDSCH that is not successfully sent by group index i, and the dynamically indicated PDSCH HARQ -ACK feedback means that when the gNB does not receive the HARQ-ACK feedback information sent by the UE, it sends the group index to the UE through DCI, and the UE feeds back the HARQ-ACK feedback information to the gNB according to the group index, where i is a positive integer,

If the HARQ-ACK feedback information identified by group index 0 was originally supposed to be fed back by the UE to the gNB in time slot 2, but the HARQ-ACK feedback information was not successfully sent due to its low priority, the gNB can pass in time slot 4. A PDCCH sends DCI, which contains a group index of 0. After receiving the group index 0, the UE can feed back the HARQ-ACK feedback information identified by the group index 0 in addition to the HARQ-ACK feedback information already indicated by the DCI in the time slot 5.

If the HARQ-ACK feedback information identified by the group index 1 should be fed back by the UE to the gNB in time slot 6 and not sent, and the HARQ-ACK feedback information identified by the group index 2 should be fed back by the UE to the gNB in time slot 7. Without sending, the gNB can send DCI through a PDCCH in time slot 9, which contains group indexes 1 and 2. After the UE receives the group index 1 and 2, it can feed back the HARQ-ACK feedback information identified by the group index 1 and the group index 2 in addition to the HARQ-ACK feedback information already indicated by the DCI in the time slot 0. HARQ-ACK feedback information.

When the comprehensive index identification is adopted, for example, the comprehensive index identification 2 is used to represent the group index 1 and the group index 2, then the gNB can send the DCI through a PDCCH in the time slot 9, which includes the comprehensive index identification 2. After the UE receives the comprehensive index identifier 2, it can also feed back the HARQ-ACK feedback information identified by the group index 1 and the HARQ-ACK feedback information identified by the group index 2 in addition to the HARQ-ACK feedback information already indicated by the DCI in the time slot 0 HARQ-ACK feedback information.

In this embodiment, the content already indicated by the DCI may be SPS PDSCH scheduling information, or SPS PDSCH activation command, etc.

When the method for triggering HARQ-ACK feedback information provided in this embodiment is executed, a comprehensive index identifier is set to represent one or more group indexes, so that the number of bits used to indicate the SPS PDSCH HARQ-ACK group index in the DCI can be omitted. Save channel resources.

Example 3

This embodiment provides a method for sending HARQ-ACK feedback information. The sending method is applied to a UE. As shown in FIG. 5, the sending method may include the following steps:

Step S20: receiving configuration information of a group index, where the group index is configured to uniquely identify the HARQ-ACK feedback information;

Specifically, the configuration information of the group index refers to one or more group indexes pre-configured for the SPS PDSCH on the gNB side.

Step S21: Receive downlink data sent by gNB through SPS PDSCH;

Step S22: Determine whether the DCI sent by the gNB is received, where the DCI includes the group index;

If yes, perform step S23: resend the HARQ-ACK feedback information identified by the group index to the gNB according to the group index.

Further, the DCI also includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication; when the judgment result of step S22 is yes It is also possible to feed back the HARQ-ACK feedback information corresponding to the DCI indication to the gNB according to the first control information.

Those skilled in the art can understand that the content of the DCI existing indication refers to information based on the general function of DCI in the prior art, such as: SPS PDSCH scheduling information, SPS PDSCH activation command, etc.

In this embodiment, if the DCI sent by the gNB is not received, step S21 may be continued to be performed.

When the method for sending HARQ-ACK feedback information provided in this embodiment is executed, when the SPS PDSCH HARQ-ACK of the low-priority service is discarded or cannot be sent, the UE can renew the DCI in time according to the DCI sent by the gNB including the group index. Sending the discarded HARQ-ACK feedback information ensures that the HARQ-ACK feedback information is not missed.

Example 4

This embodiment provides a method for sending HARQ-ACK feedback information. The sending method is a further improvement on the basis of Embodiment 3. Specifically, the configuration information of the group index also includes a comprehensive index identifier, and the comprehensive index The identifier is used to identify one or more of the group indexes.

Preferably, a mutual correspondence table between a comprehensive index identifier and a group index can be configured through RRC (Radio Resource Control). For example, a correspondence table as shown in Table 2 can be set.

Table 2

In this embodiment, when one or more group indexes are represented by the integrated index identifier, after the UE receives the DCI containing the integrated index identifier, it can feed back to the gNB the corresponding group index identified by the integrated index identifier. One or more HARQ-ACK feedback information.

Example 5

This embodiment provides a HARQ-ACK feedback information trigger system. As shown in FIG. 6, the trigger system is applied to gNB, and the trigger system 1 may include:

The configuration module 11 is configured to pre-configure one or more group indexes for the SPS PDSCH, where the group indexes are a unique identifier of the HARQ-ACK feedback information;

The data sending module 12 is configured to send downlink data to the UE by using the SPS PDSCH;

The first judging module 13 is configured to judge whether the HARQ-ACK feedback information identified by the group index that is fed back by the UE is received in the feedback time slot;

If the judgment result of the first judgment module is no, the trigger module 14 is called. The trigger module 14 is used to send DCI to the UE through the PDCCH. The DCI includes a group index, and the group index is used to trigger the The UE retransmits the HARQ-ACK feedback information identified by the group index.

If the judgment result of the first judgment module 13 is yes, the data sending module 12 can be called.

In this embodiment, the configuration module 11 is used to pre-configure one or more group indexes for the SPS PDSCH through high-layer signaling; or, the configuration module 11 is used to indicate the activation command of the SPS PDSCH transmitted in the PDCCH One or more group indexes corresponding to the SPS PDSCH.

In addition, in this embodiment, the configuration module 11 may also pre-configure parameters such as a duty cycle, a start symbol, a symbol length, the HARQ-ACK feedback information and the offset time slot of the SPS PDSCH for the SPS PDSCH.

When the HARQ-ACK feedback information trigger system provided in this embodiment is running, when the SPS PDSCH HARQ-ACK of the low-priority service is discarded or cannot be sent, the gNB can quickly and flexibly use the PDCCH to notify the UE (user equipment) to resend The discarded HARQ-ACK feedback information ensures that the HARQ-ACK feedback information is not missed.

Example 6

This embodiment provides a triggering system for HARQ-ACK feedback information. As shown in FIG. 7, the triggering system is a further improvement on the basis of Embodiment 5. Specifically, the triggering system 1 may also include a comprehensive index identifier. A setting module 15, the comprehensive index identification setting module 15 is used to set a comprehensive index identification, the comprehensive index identification is used to identify one or more of the group indexes;

Based on this, the DCI may also include a comprehensive index identifier, which is used to trigger the UE to retransmit one or more HARQ-ACK feedback information identified by the one or more group indexes.

Preferably, a mutual correspondence table between a comprehensive index identifier and a group index can be configured through RRC (Radio Resource Control). For example, a correspondence table as shown in Table 3 can be set.

table 3

When the HARQ-ACK feedback information trigger system provided in this embodiment is running, a comprehensive index identifier is set to represent one or more group indexes, so that the number of bits used to indicate the SPS PDSCH HARQ-ACK group index in the DCI can be omitted. Save channel resources.

Example 7

This embodiment provides a system for sending HARQ-ACK feedback information. The sending system is applied to a UE. As shown in FIG. 8, the sending system 2 may include:

The configuration information receiving module 21 is configured to receive configuration information of a group index, where the group index is configured to uniquely identify the HARQ-ACK feedback information;

The data receiving module 22 is configured to receive downlink data sent by the gNB through SPS PDSCH;

The second determining module 23 is configured to determine whether the DCI sent by the gNB is received, where the DCI includes the group index;

If the judgment result of the second judgment module 23 is yes, the feedback module 24 is called, and the feedback module 24 resends the HARQ-ACK feedback information identified by the group index to the gNB according to the group index.

If the judgment result of the second judgment module 23 is no, the data receiving module 22 is called.

Further, the DCI further includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication;

When the judgment result of the second judgment module 23 is yes, the feedback module 24 also feeds back the HARQ-ACK feedback information corresponding to the DCI indication to the gNB according to the first control information.

When the HARQ-ACK feedback information sending system provided in this embodiment is running, when the SPS PDSCH HARQ-ACK of the low-priority service is discarded or cannot be sent, the UE can promptly update the DCI that contains the group index sent by the gNB. Sending the discarded HARQ-ACK feedback information ensures that the HARQ-ACK feedback information is not missed.

Example 8

This embodiment provides a HARQ-ACK feedback information sending system. The sending system is a further improvement on the basis of Embodiment 7. Specifically, the configuration information of the group index also includes a comprehensive index identifier, and the comprehensive index The identifier is used to identify one or more of the group indexes;

Based on this, when the data receiving module also receives the DCI sent by the gNB, the feedback module feeds back to the gNB one or more HARQ-ACK feedback corresponding to the group index identified by the comprehensive index identifier information.

Preferably, a mutual correspondence table between a comprehensive index identifier and a group index can be configured through RRC (Radio Resource Control). For example, a corresponding table as shown in Table 4 can be set.

Table 4

Example 9

The present invention also provides an electronic device. As shown in FIG. 9, the electronic device may include a memory, a processor, and a computer program stored in the memory and running on the processor. The processor executes the computer program when the computer program is executed. The steps of the method for triggering HARQ-ACK feedback information in Embodiment 1 or Embodiment 2 or the method for sending HARQ-ACK feedback information in Embodiment 3 or Embodiment 4.

It can be understood that the electronic device 3 shown in FIG. 9 is only an example, and should not bring any limitation to the function and scope of use of the embodiment of the present invention.

As shown in FIG. 9, the electronic device 3 may be in the form of a general-purpose computing device, for example, it may be a server device. The components of the electronic device 3 may include, but are not limited to: the above-mentioned at least one processor 4, the above-mentioned at least one memory 5, and a bus 6 connecting different system components (including the memory 5 and the processor 4).

The bus 6 may include a data bus, an address bus, and a control bus.

The memory 5 may include a volatile memory, such as a random access memory (RAM) 51 and/or a cache memory 52, and may further include a read-only memory (ROM) 53.

The memory 5 may also include a program tool 55 (or utility tool) having a set of (at least one) program module 54. Such program module 54 includes but is not limited to: an operating system, one or more application programs, and other program modules. As well as program data, each of these examples or some combination may include the realization of a network environment.

The processor 4 executes various functional applications and data processing by running a computer program stored in the memory 5, such as the HARQ-ACK feedback information triggering method or implementation in Embodiment 1 or Embodiment 2 of the present invention Steps of the HARQ-ACK feedback information transmission method in Example 3 or Example 4.

The electronic device 3 may also communicate with one or more external devices 7 (for example, a keyboard, a pointing device, etc.). This communication can be performed through an input/output (I/O) interface 8. In addition, the electronic device 3 generated by the model can also communicate with one or more networks (for example, a local area network LAN, a wide area network WAN, and/or a public network) through a network adapter 9.

As shown in FIG. 9, the network adapter 9 can communicate with other modules of the electronic device 3 generated by the model through the bus 6. Those skilled in the art should understand that although not shown in the figure, other hardware and/or software modules can be used in conjunction with the electronic device 3 generated by the model, including but not limited to: microcode, device drivers, redundant processors, and external disk drivers. Arrays, RAID (disk array) systems, tape drives, and data backup storage systems, etc.

It should be noted that, although several units/modules or subunits/modules of the electronic device are mentioned in the above detailed description, this division is only exemplary and not mandatory. In fact, according to the embodiments of the present invention, the features and functions of two or more units/modules described above can be embodied in one unit/module. Conversely, the features and functions of one unit/module described above can be further divided into multiple units/modules to be embodied.

Example 10

This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the HARQ-ACK feedback information triggering method in the foregoing embodiment 1 or embodiment 2 or embodiment 3 or The steps of the HARQ-ACK feedback information transmission method in Embodiment 4.

Among them, the more specific ways that the computer-readable storage medium can adopt may include, but are not limited to: portable disks, hard disks, random access memories, read-only memories, erasable programmable read-only memories, optical storage devices, magnetic storage devices, or the above Any suitable combination of.

In a possible implementation manner, the present invention can also be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to make the terminal device execute the foregoing embodiment 1 or implementation. The steps of the method for triggering HARQ-ACK feedback information in Example 2 or the method for sending HARQ-ACK feedback information in Example 3 or 4.

Among them, the program code for executing the present invention can be written in any combination of one or more programming languages. The program code can be executed completely on the user equipment, partly executed on the user equipment, as an independent software. The package is executed, partly on the user's device, partly on the remote device, or entirely on the remote device.

Although the specific embodiments of the present invention are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

A method for triggering HARQ-ACK feedback information is characterized in that the triggering method is applied to gNB, and the triggering method includes the following steps:

Pre-configure one or more group indexes for the SPS PDSCH, where the group indexes are the unique identifiers of the HARQ-ACK feedback information;

Using the SPS PDSCH to send downlink data to the UE;

Judging whether the HARQ-ACK feedback information identified by the group index fed back by the UE is received in the feedback slot;

If not, send DCI to the UE through the PDCCH, where the DCI includes a group index, and the group index is used to trigger the UE to retransmit the HARQ-ACK feedback information identified by the group index.
The method for triggering HARQ-ACK feedback information according to claim 1, wherein:

The DCI further includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication.
The method for triggering HARQ-ACK feedback information according to at least one of claims 1-2, wherein the step of pre-configuring one or more group indexes for SPSPDSCH comprises:

Pre-configure one or more group indexes for SPS PDSCH through high-layer signaling;

or,

The SPS PDSCH activation command transmitted in the PDCCH indicates one or more group indexes corresponding to the SPS PDSCH.
The method for triggering HARQ-ACK feedback information according to at least one of claims 1-3, wherein:

After pre-configuring one or more group indexes for the SPS PDSCH, the method further includes the following steps:

Setting a comprehensive index identifier, where the comprehensive index identifier is used to identify one or more of the group indexes;

The DCI includes a comprehensive index identifier, and the comprehensive index identifier is used to trigger the UE to retransmit one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier.
A method for sending HARQ-ACK feedback information is characterized in that the sending method is applied to a UE, and the sending method includes the following steps:

Receiving configuration information of a group index, where the group index is configured to uniquely identify the HARQ-ACK feedback information;

Receive the downlink data sent by gNB through SPS PDSCH;

Judging whether the DCI sent by the gNB is received, where the DCI includes the group index;

If yes, re-send the HARQ-ACK feedback information identified by the group index to the gNB according to the group index.
The method for sending HARQ-ACK feedback information according to claim 5, wherein the DCI further comprises first control information, and the first control information is used to control the UE to feed back that the DCI has an indication. Corresponding HARQ-ACK feedback information;

The sending method further includes:

When the DCI sent by the gNB is received, the HARQ-ACK feedback information corresponding to the DCI indication is further fed back to the gNB according to the first control information.
The method for sending HARQ-ACK feedback information according to at least one of claims 5-6, wherein:

The configuration information of the group index further includes a comprehensive index identifier, and the comprehensive index identifier is used to identify one or more of the group indexes;

The sending method further includes:

When receiving the DCI that includes the comprehensive index identifier sent by the gNB, one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier is fed back to the gNB.
A triggering system for HARQ-ACK feedback information, wherein the triggering system is applied to gNB, and the triggering system includes:

The configuration module is configured to pre-configure one or more group indexes for the SPS PDSCH, where the group indexes are the unique identifiers of the HARQ-ACK feedback information;

The data sending module is used to send downlink data to the UE by using the SPS PDSCH;

The first judgment module is configured to judge whether the HARQ-ACK feedback information identified by the group index fed back by the UE is received in the feedback time slot;

If the judgment result of the first judgment module is no, then a trigger module is called, the trigger module is used to send DCI to the UE through the PDCCH, the DCI includes a group index, and the group index is used to trigger the UE Resending the HARQ-ACK feedback information identified by the group index.
The HARQ-ACK feedback information trigger system of claim 8, wherein:

The DCI further includes first control information, and the first control information is used to control the UE to feed back the HARQ-ACK feedback information corresponding to the DCI indication.
The HARQ-ACK feedback information trigger system according to at least one of claims 8-9, wherein the configuration module is used to pre-configure one or more group indexes for the SPS PDSCH through high-layer signaling; or, The configuration module is used to indicate one or more group indexes corresponding to the SPS PDSCH through the activation command of the SPS PDSCH transmitted in the PDCCH.
The HARQ-ACK feedback information trigger system according to at least one of claims 8-10, wherein:

The trigger system further includes a comprehensive index identification setting module, the comprehensive index identification setting module is used to set a comprehensive index identification, and the comprehensive index identification is used to identify one or more of the group indexes;

The DCI includes a comprehensive index identifier, and the comprehensive index identifier is used to trigger the UE to retransmit one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier.
A HARQ-ACK feedback information sending system, characterized in that the sending system is applied to a UE, and the sending system includes:

A configuration information receiving module, configured to receive configuration information of a group index, where the group index is configured to uniquely identify the HARQ-ACK feedback information;

The data receiving module is used to receive the downlink data sent by the gNB through SPS PDSCH;

The second judgment module is configured to judge whether the data receiving module also receives the DCI sent by the gNB, where the DCI includes the group index;

If yes, call a feedback module, and the feedback module is configured to resend the HARQ-ACK feedback information identified by the group index to the gNB according to the group index.
The HARQ-ACK feedback information sending system according to claim 12, wherein the DCI further includes first control information, and the first control information is used to control the UE to feed back the DCI that has been indicated. Corresponding HARQ-ACK feedback information;

When the data receiving module also receives the DCI sent by the gNB, the feedback module also feeds back the HARQ-ACK feedback information corresponding to the DCI indication to the gNB according to the first control information.
The HARQ-ACK feedback information sending system according to at least one of claims 12-13, characterized in that:

The configuration information of the group index further includes a comprehensive index identifier, and the comprehensive index identifier is used to identify one or more of the group indexes;

The feedback module feeds back one or more HARQ-ACK feedback information corresponding to the group index identified by the comprehensive index identifier to the gNB.
An electronic device comprising a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to implement any one of claims 1 to 4 The steps of the method for triggering HARQ-ACK feedback information, or the steps of implementing the method for sending HARQ-ACK feedback information according to any one of claims 5-7.
A computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, the steps of the HARQ-ACK feedback information triggering method according to any one of claims 1 to 4 are realized , Or implementing the steps of the HARQ-ACK feedback information sending method according to any one of claims 5-7.