WO2021092955A1

WO2021092955A1 - Method for receiving downlink control signaling, network device and terminal device

Info

Publication number: WO2021092955A1
Application number: PCT/CN2019/118993
Authority: WO
Inventors: 林亚男; 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-05-20
Also published as: CN114287118A; CN114287118B

Abstract

Disclosed are a method for receiving downlink control signaling, a network device, a terminal device, a chip, a computer-readable storage medium, a computer program product, and a computer program. The method comprises: a terminal device receiving first signaling, wherein the first signaling is used for instructing the terminal device to transmit a first uplink channel; where a preset condition is satisfied, a target information domain in the first signaling is used for indicating the number of downlink channels included in N channel groups, or used for indicating the number of downlink channels included in each channel group of the N channel groups; and the preset condition comprises: the terminal device receiving second signaling, and a second uplink channel scheduled by the second signaling and the first uplink channel at least partially overlapping in a time domain, and the second uplink channel being used for transmitting feedback information corresponding to M channel groups, wherein N and M are positive integers, and N is less than or equal to M.

Description

Method for receiving downlink control signaling, network equipment and terminal equipment

Technical field

The present invention relates to the field of information processing technology, and in particular to a method for receiving downlink control signaling, network equipment, terminal equipment, chips, computer-readable storage media, computer program products, and computer programs.

Background technique

In related technologies, for Rel-16's NR-U (NR-based Access to Unlicensed Spectrum), packet-based ACK/NACK feedback methods are supported. This feedback mode can be that the network device indicates the scheduled downlink channel or the channel group information to which the downlink channel carrying the DCI belongs through scheduling signaling; when the network device sends trigger signaling, instructs the terminal to feed back the ACK corresponding to a certain channel group /NACK information, the terminal will feed back all the feedback information corresponding to the PDSCH or PDCCH belonging to the group to the base station. Such a feedback method may have the problem of reducing the efficiency of uplink transmission, as well as the problem of limiting the number of scheduled downlink channels due to scheduling restrictions, and so on.

Summary of the invention

To solve the foregoing technical problems, embodiments of the present invention provide a method for receiving downlink control signaling, network equipment, terminal equipment, chips, computer-readable storage media, computer program products, and computer programs.

In the first aspect, a method for receiving downlink control signaling is provided, including:

The terminal device receives the first signaling;

Wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; the first signaling includes the target information field; when a preset condition is met, the first signaling is The target information field of is used to indicate the number of downlink channels included in the N channel groups, or is used to indicate the number of downlink channels included in each channel group in the N channel groups;

The preset conditions include:

The terminal device receives the second signaling, and the second uplink channel scheduled in the second signaling at least partially overlaps the first uplink channel in the time domain, and the second uplink channel is used for transmission For feedback information corresponding to M channel groups, N and M are positive integers, and N is less than or equal to M.

In a second aspect, a method for receiving downlink control signaling is provided, including:

The network device sends the first signaling;

The preset conditions include:

The second signaling is sent to the terminal device, and the second uplink channel scheduled in the second signaling and the first uplink channel at least partially overlap in the time domain, and the second uplink channel is used for transmission For feedback information corresponding to M channel groups, N and M are positive integers, and N is less than or equal to M.

In a third aspect, a terminal device is provided, including:

The first communication unit receives the first signaling;

The preset conditions include:

In a fourth aspect, a network device is provided, including:

The second communication unit sends the first signaling;

The preset conditions include:

In a fifth aspect, a method for receiving downlink control signaling is provided, including:

The terminal device receives the first signaling; the first signaling includes a first information field and a second information field;

The first information field is used to indicate the number of downlink channels included in the target channel group; the second information field is used to indicate that the target channel group indicated by the first information field is at least two channel groups one of the.

In a sixth aspect, a method for receiving downlink control signaling is provided, including:

The network device sends first signaling; the first signaling includes a first information field and a second information field;

Wherein, the first information field is used to indicate to the terminal device the number of downlink channels included in the target channel group; the second information field is used to indicate that the target channel group indicated by the first information field is at least two One of two channel groups.

In a seventh aspect, a terminal device is provided, including:

The first communication unit receives first signaling; the first signaling includes a first information field and a second information field;

In an eighth aspect, a network device is provided, including:

The second communication unit sends first signaling; the first signaling includes a first information field and a second information field;

In a ninth aspect, a terminal device is provided, including: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the foregoing method.

In a tenth aspect, a network device is provided, including: a processor and a memory for storing a computer program that can run on the processor,

In an eleventh aspect, a chip is provided, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the aforementioned method.

In a twelfth aspect, a computer-readable storage medium is provided, and the computer-readable storage medium is used to store a computer program that enables a computer to execute the steps of the aforementioned method.

In a thirteenth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute the method as described above.

In a fourteenth aspect, a computer program is provided, which causes a computer to execute the aforementioned method.

By adopting the above solution, it is possible to determine whether the target information field in the first signaling contains the number of downlink channels according to the received second signaling, and if the preset conditions are met, It can be determined that the target information field of the first signaling indicates the number of downlink channels. This provides a method for determining the interpretation of the target information field for the first signaling through the triggering of the second signaling. In this method, it can be determined that only when the preset conditions are met, multiple transmissions are needed. The feedback information corresponding to the channel group, thereby avoiding the problem of affecting system efficiency and reducing the efficiency of DCI indication caused by triggering feedback every time the first signaling is sent; and there is no downlink to the target information domain in the above method The number of channels is limited, so the scheduling limitation problem is avoided.

Description of the drawings

FIG. 1 is a schematic diagram 1 of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a first schematic flowchart of a discontinuous reception processing method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram 2 of a flow chart of a discontinuous reception processing method according to an embodiment of the present invention;

Figure 4-1 and Figure 4-2 are schematic diagrams of two scenarios of a discontinuous reception processing method provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of the structure of a terminal device provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the composition structure of a network device provided by an embodiment of the present invention;

FIG. 7 is a third schematic flowchart of a discontinuous reception processing method according to an embodiment of the present invention;

FIG. 8 is a fourth schematic flowchart of a discontinuous reception processing method according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of the composition structure of a communication device provided by an embodiment of the present invention;

FIG. 10 is a schematic block diagram of a chip provided by an embodiment of the present application;

FIG. 11 is a schematic diagram 2 of a communication system architecture provided by an embodiment of the present application.

Detailed ways

In order to understand the features and technical content of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and explanation purposes only, and are not used to limit the embodiments of the present invention.

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application may be as shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a UE 120 (or called a communication terminal or a terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with UEs located in the coverage area. Optionally, the network equipment 110 may be a network equipment (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a network equipment (NodeB, NB) in a WCDMA system, or an evolution in an LTE system Type network equipment (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment may be a mobile switching center, a relay station, an access point, In-vehicle devices, wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one UE 120 located within the coverage area of the network device 110. "UE" as used herein includes but is not limited to connection via wired lines, such as via public switched telephone networks (PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, and direct cable connection; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another UE's device configured to receive/send communication signals; and/or Internet of Things (IoT) equipment. A UE set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal".

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the UEs 120.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

The embodiment of the present invention provides a method for receiving downlink control signaling, as shown in FIG. 2, including:

Step 21: The terminal device receives the first signaling; wherein, the first signaling is used to instruct the terminal device to transmit the first uplink channel; the first signaling includes the target information field; when the preset condition is satisfied In the case of, the target information field in the first signaling is used to indicate the number of downlink channels included in the N channel groups, or used to indicate the number of downlink channels included in each channel group of the N channel groups;

The preset conditions include:

Correspondingly, an embodiment of the present invention provides a method for receiving downlink control signaling, as shown in FIG. 3, including:

Step 31: The network device sends first signaling; wherein, the first signaling is used to instruct the terminal device to transmit the first uplink channel; the first signaling includes the target information field; when the preset condition is satisfied In the case of, the target information field in the first signaling is used to indicate the number of downlink channels included in the N channel groups, or used to indicate the number of downlink channels included in each channel group of the N channel groups;

The preset conditions include:

In this embodiment, the terminal device may support multiple channel groups. In a preferred example, the terminal device supports two channel groups.

The foregoing first signaling may be carried by Downlink Control Information (DCI, Downlink Control Information). The second signaling may also be carried by DCI. In order to show the difference, the DCI carrying the first signaling may be called the first DCI, and the DCI carrying the second signaling may be called the second DCI.

Wherein, the target information field in the first signaling is used to indicate the number of downlink channels included in the N channel groups, or is used to indicate the number of downlink channels included in each channel group in the N channel groups, it is understandable for:

The target information field in the first signaling is used to carry information used to indicate the number of downlink channels included in the N channel groups, or used to carry information used to indicate the number of downlink channels included in each channel group of the N channel groups. Information about the number of channels.

The following describes the embodiments of the present application in combination with multiple examples:

Example 1,

The terminal device receives the second signaling, and before the terminal device receives the first signaling, receives the second signaling. That is, the network device sends the second signaling before sending the first signaling. In this example, the second uplink channel and the first uplink channel at least partially overlap in the time domain.

The first uplink channel may be a physical uplink shared channel (PUSCH, Physical Uplink Share Channel) scheduled for transmission in time slot a and scheduled by the first DCI. The second uplink channel may be a physical uplink control channel (PUCCH, Physical Uplink Control CHannel) transmitted in the time slot b indicated by the second DCI. Wherein, time slot a and time slot b at least partially overlap. For example, time slot a and time slot b may be the same or partly the same. The feedback information may be acknowledgement (ACK)/non-acknowledgement (NACK) information. The aforementioned target information field may be DAI (Downlink Assignment Index) included in the first signaling (that is, the first DCI). In other words, the DAI information domain is included in the DCI, which is called the target information domain.

Furthermore, the method further includes: the terminal device transmits a feedback information codebook through the first uplink channel; wherein the feedback information codebook includes feedback information corresponding to the M channel groups; the feedback information code The number of bits included is determined according to the content indicated by the target information field.

Regarding the number of bits contained in the feedback information codebook, a first value can be obtained based on the number of channels corresponding to M channel groups multiplied by a corresponding preset value; this first value is used as the bits contained in the feedback information codebook Quantity. The corresponding preset value may be the number of bits included in the transmission block, or may be other numbers, which are not exhaustively listed here.

For example, the terminal device transmits ACK/NACK feedback information in a channel group manner. The terminal supports two channel groups. The terminal receives the second DCI, and the second DCI is used to instruct the terminal to send the ACK/NACK information corresponding to at least one channel group through the PUCCH (that is, the second uplink channel) in the time slot n. The terminal device further receives the first DCI, where the first DCI is used to schedule the transmission of the PUSCH (that is, the first uplink channel) in the time slot n, and the PUSCH and the PUCCH at least partially overlap in the time domain. When the processing timeline is satisfied, the feedback information codebook (ACK/NACK codebook) will be transmitted in the PUSCH (that is, the first uplink channel);

Wherein, the ACK/NACK codebook includes ACK/NACK information corresponding to the at least one channel group.

The size of the ACK/NACK codebook (that is, the number of bits contained therein) is determined according to the DAI (Downlink assignment index) target information field in the first DCI.

Further, the number of downlink channels included in the N channel groups,

In several cases, when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in the first channel group, and the M channel groups include the first channel group.

When N is greater than 1, the total number of downlink channels included in the N channel groups. For example, N=2, then it is the total number of all downlink channels included in the two channel groups.

If N=1, the target information field (that is, the DAI information field) is used to indicate the number of downlink channels included in the first channel group, which can be divided into the following situations:

One situation: if the at least one channel group includes only one channel group, the channel group is regarded as the first channel group, and correspondingly, the DAI indicates the number of downlink channels included in the first channel group;

or,

The second case: if the at least one channel group includes two channel groups (or more than two channel groups), the DAI indicates the number of downlink channels included in the first channel group.

In view of the foregoing second situation, the first channel group may be one of the following:

The downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs; that is, the first channel group is the channel to which the downlink channel scheduled by the second DCI belongs Group, or, the first channel group is a channel group to which a downlink channel carrying the second DCI belongs.

Or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs; that is, the first channel group is outside the channel group to which the downlink channel scheduled by the second DCI belongs Channel group;

Or, the agreed channel group.

Specifically, in one case, when the second signaling schedules the downlink channel, it also indicates the corresponding second uplink channel. Then the first channel group corresponds to the downlink channel scheduled by the second signaling. The channel group, or alternatively, may be a channel group to which the downlink channel carrying the second signaling belongs.

In another case, the first channel group may be any channel group except the channel group to which the downlink channel scheduled by the aforementioned second signaling belongs. For example, if the terminal supports two channel groups, the two channel groups are represented as channel group 1 and channel group 2 respectively; if the channel group to which the downlink channel scheduled by the second signaling belongs can be channel group 1, then The first channel group is channel group 2. For another example, if the channel groups supported by the terminal are 3 channel groups, which are represented as

channel groups

1, 2, and 3 respectively; then if the channel group to which the downlink channel scheduled by the second signaling belongs is channel group 1, then the first The channel group can be either channel group 2 or channel group 3.

In another case, the first channel group may be an agreed channel group. Wherein, the agreed channel group includes: the channel group with the largest or smallest number among the M channel groups. For example, the terminal supports two channel groups, numbered 1, 2 respectively, that is,

channel groups

1, 2; if the agreed channel group is the channel group with the highest number, then the first channel group is channel group 2; if The agreed channel group is the channel group with the smallest number, and the first channel group is channel group 1.

The target information field (DAI information field) is used to indicate the number of downlink channels included in each of the N channel groups, which can be understood as:

The number of downlink channels included in the target information field is used to indicate the number of downlink channels respectively included in the N channel groups.

When N is 1, it can also be understood as the brushing of the downlink channels included in the first channel group.

When N is greater than 1, take N=2 as an example. The DAI information domain, that is, the target information domain, can be further divided into two sub-parts, which are respectively denoted as sub-DAI1 and 2; among them, sub-DAI 1 is used To indicate the number of downlink channels included in channel group 1, sub-DAI 2 is used to indicate the number of downlink channels included in channel group 2.

On the basis of the foregoing, how to determine the content indicated in the target information field of the first signaling can be through a designated information field (that is, designated information field) other than the target information field in the second signaling. The bit field) is used to indicate the specific content of the target information field in the first signaling, which can be divided into several ways here:

Manner 1. If the target information field in the first signaling contains the total number of downlink channels included in the N channel groups; then there is no need to indicate in the second signaling, as long as the target of the first signaling The content is extracted directly from the information domain, and the content is the total quantity.

Way 2,

The second signaling includes first information, and the first information is used to indicate that the target information field of the first signaling is used to indicate the downlink included in each of the N channel groups The number of channels.

That is, the first information included in the second signaling is used to indicate what the content indicated by the target information field included in the first signaling is. The specific first information may include L bit values at designated bits in the second signaling. Furthermore, if the L bit values of the first information are preset values, then the value of the second signaling can be determined The first information is used to indicate that the target information field in the first signaling indicates the number of downlink channels included in each of the N channel groups.

Way 3.

The second signaling includes second information, and the second information is used to indicate that the target information field of the first signaling is used to indicate the channel group to which the downlink channel scheduled by the second signaling belongs The number of downlink channels included in.

That is, the second information included in the second signaling is used to indicate what the content indicated by the target information field included in the first signaling is. The specific second information may include K bit values at designated bits in the second signaling. Furthermore, if the K bit values of the second information are preset values, then the value of the second signaling can be determined The second information is used to indicate the number of downlink channels included in the channel group to which the downlink channel scheduled by the second signaling belongs, indicated by the target information field in the first signaling.

Manner 4: The second signaling may include third information, which is used to indicate that the target information field included in the first signaling is used to indicate that the first channel group is a downlink channel scheduled by the second DCI A channel group other than the channel group to which it belongs.

Combining the foregoing methods, the bits of the first information, the second information, and the third information may be the same. For example, the first information may be the first value of the bit, and the second information may be the second value of the bit. , Assuming that the bit value of the designated bit is 01, then it can be considered as the first information, and if the bit value is 10, it can be considered as the second information.

This example is described with reference to Figure 4-1. When the first DCI is received, it contains the target information field DAI and indicates that the number of channels included is 6, which means that the first channel group (such as Group 1 in the figure) contains The number of downlink channels. In addition, the first DCI also indicates the time slot of the first uplink channel, and the first uplink channel is the PUSCH in the figure. Before the first DCI is received, the terminal device will also receive a second DCI. The second DCI is used to indicate the transmission of feedback information of multiple channels through the second uplink channel (PUCCH in the figure). The figure shows that PUCCH and PUSCH overlap in the time domain. In the figure, there can be multiple corresponding second DCIs in the first channel group, and each second DCI counts the number of downlink channels in the first channel group. For example, when the DCI is sent for the first time, the DAI count is 1. Until the sixth transmission, the DAI count in the figure is 6. Based on the foregoing description, after receiving the first DCI, the feedback codebook is transmitted on the first uplink channel (PUSCH).

Example 2 is the same as example 1 in that the terminal device transmits ACK/NACK feedback information in a channel group manner. The terminal supports two channel groups. The difference from Example 1 is that, in this example, when the preset conditions are not met, the target information domain is a reserved information domain; or, the target information domain is used to carry the information contained in the at least one channel group. The number of downlink channels is irrelevant information.

That is:

In the case that the terminal device does not receive the second signaling, the target information field is a reserved information field; or, the target information field is used to carry information related to the downlink channel included in the at least one channel group. Number of irrelevant information.

Or, when the terminal device receives the second signaling, the second uplink channel indicated by the second signaling and the first uplink channel indicated by the first signaling do not overlap in the time domain, and the target information The domain is a reserved information domain; or, the target information domain is used to carry information that is not related to the number of downlink channels included in the at least one channel group.

For example, the terminal receives the first DCI, and the first DCI is used to schedule transmission of the PUSCH in slot n, and the PUCCH that does not carry ACK/NACK in slot n at least partially overlaps the PUSCH in the time domain. At this time, the terminal only transmits the PUSCH.

The DAI information field in the first DCI:

Reserved information domain; the reserved information domain is an information domain whose content is not read by the terminal device, or is an information domain whose content is not executed by the terminal device. That is, the terminal device may not read the information domain, or read but not perform operations corresponding to the content of the reserved information domain.

Or, it is used to indicate other information, that is, information that is not related to the number of downlink channels included in the at least one channel group. For example: physical channel priority information, adjusted coding level table information, CBG coding block group information, PUSCH physical resource information, used to instruct the terminal to send ACK/NACK information corresponding to all HARQ processes, etc., which are not limited to this.

This example is described with reference to Fig. 4-2. The difference from Fig. 4-1 is that Fig. 4-2 illustrates that PUCCH and PUSCH do not overlap in the time domain. Then, based on the indication of the second DCI, the feedback codebook can be transmitted on the PUCCH, that is, the second uplink channel, and the DAI field in the first DCI is the reserved information field.

It can be seen that by adopting the above scheme, it is possible to determine whether the target information field in the first signaling contains the number of downlink channels according to the received second signaling, and when the preset conditions are met, the first signaling can be determined. The target information field of a signaling indicates the number of downlink channels. This provides a method for determining the interpretation of the target information field for the first signaling through the triggering of the second signaling. In this method, it can be determined that only when the preset conditions are met, multiple transmissions are needed. The feedback information corresponding to the channel group, thereby avoiding the problem of affecting system efficiency and reducing the efficiency of DCI indication caused by triggering feedback every time the first signaling is sent; and there is no downlink to the target information domain in the above method The number of channels is limited, so the scheduling limitation problem is avoided.

The embodiment of the present invention provides a terminal device, as shown in FIG. 5, including:

The first communication unit 51 receives first signaling; wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; the first signaling includes the target information field; Under conditions, the target information field in the first signaling is used to indicate the number of downlink channels included in the N channel groups, or used to indicate the number of downlink channels included in each channel group of the N channel groups ；

The preset conditions include:

The second signaling is received, and the second uplink channel scheduled in the second signaling at least partially overlaps the first uplink channel in the time domain, and the second uplink channel is used to transmit M channel groups Corresponding feedback information, N and M are positive integers, and N is less than or equal to M.

Correspondingly, an embodiment of the present invention provides a network device, as shown in FIG. 6, including:

The second communication unit 61 sends first signaling; wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; the first signaling includes the target information field; Under conditions, the target information field in the first signaling is used to indicate the number of downlink channels included in the N channel groups, or used to indicate the number of downlink channels included in each channel group of the N channel groups ；

The preset conditions include:

The foregoing first signaling may be carried by Downlink Control Information (DCI, Downlink Control Information). The second signaling may also be carried by DCI. To show the difference, the DCI carrying the first signaling may be called the first DCI, and the DCI carrying the second signaling may be called the second DCI.

Example 1,

The first communication unit 51 receives the second signaling, and the terminal device receives the second signaling before receiving the first signaling. That is, the second communication unit 61 sends the second signaling before sending the first signaling. In this example, the second uplink channel and the first uplink channel at least partially overlap in the time domain.

The first communication unit 51 transmits the feedback information codebook through the first uplink channel; wherein the feedback information codebook includes feedback information corresponding to the M channel groups; the number of bits included in the feedback information codebook is Determined according to the content indicated by the target information field.

Further, the number of downlink channels included in the N channel groups is:

The first channel group may be one of the following:

Or, the agreed channel group.

Way 2,

Way 3.

Manner 4. The second signaling may include third information, which is used to indicate that the content indicated by the target information field included in the first signaling is that the first channel group is scheduled by the second DCI A channel group other than the channel group to which the downlink channel belongs.

That is:

Or, when the terminal device receives the second signaling, the second uplink channel indicated by the second signaling and the first uplink channel indicated by the first signaling do not overlap in the time domain, and the target information Domain, a reserved information domain; the reserved information domain is an information domain whose content is not read by the terminal device, or an information domain whose content is not executed by the terminal device. That is, the terminal device may not read the information domain, or read but not perform operations corresponding to the content of the reserved information domain.

Alternatively, the target information field is used to carry information that is not related to the number of downlink channels included in the at least one channel group.

It can be seen that by adopting the above solution, it is possible to determine whether the target information field in the first signaling includes the number of downlink channels according to the received second signaling. Therefore, a method for determining the interpretation of the target information domain for the first signaling through the triggering of the second signaling is provided, thereby avoiding the scheduling restriction problem caused by the limited number of target information domains.

At the same time, when the second uplink channel is not triggered, the target information field can be used to indicate additional information, thereby improving the efficiency of DCI indication.

In another embodiment, a method for receiving downlink control signaling, as shown in FIG. 7, includes:

Step 71: The terminal device receives the first signaling; the first signaling includes a first information field and a second information field; wherein, the first information field is used to indicate the downlink channel included in the target channel group The second information field is used to indicate that the target channel group indicated by the first information field is one of at least two channel groups.

Correspondingly, a method for receiving downlink control signaling, as shown in FIG. 8, includes:

Step 81: The network device sends first signaling; the first signaling includes a first information field and a second information field; wherein, the first information field is used to indicate to the terminal equipment that the target channel group contains The number of downlink channels; the second information field is used to indicate that the target channel group indicated by the first information field is one of at least two channel groups.

For example, the terminal transmits ACK/NACK feedback information in a channel group manner. The terminal supports two channel groups. The DAI in the UL grant (first DCI) is used to indicate the number of PDSCHs included in a group. The UL grant includes a first information field, and the first information field is used to indicate that the DAI is used to indicate which of the two channel groups includes the number of PDSCHs.

In another embodiment, a terminal device, as shown in FIG. 5, includes:

The first communication unit 51 receives first signaling; the first signaling includes a first information field and a second information field; wherein, the first information field is used to indicate the downlink information contained in the target channel group The number of channels; the second information field is used to indicate that the target channel group indicated by the first information field is one of at least two channel groups.

Correspondingly, a network device, as shown in Figure 6, includes:

The second communication unit 61 sends first signaling; the first signaling includes a first information field and a second information field; wherein, the first information field is used to indicate to the terminal device all the information in the target channel group The number of included downlink channels; the second information field is used to indicate that the target channel group indicated by the first information field is one of at least two channel groups.

FIG. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present invention. The communication device in this embodiment may be specifically the terminal device in the foregoing embodiment. The communication device 900 shown in FIG. 9 includes a processor 910, and the processor 910 can call and run a computer program from the memory to implement the method in the embodiment of the present invention.

Optionally, as shown in FIG. 9, the communication device 900 may further include a memory 920. The processor 910 can call and run a computer program from the memory 920 to implement the method in the embodiment of the present invention.

The memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.

Optionally, as shown in FIG. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Wherein, the transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 900 may specifically be a network device in an embodiment of the present invention, and the communication device 900 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present invention. For brevity, details are not repeated here. .

Optionally, the communication device 900 may specifically be a terminal device or a network device in an embodiment of the present invention, and the communication device 900 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present invention. It's concise, so I won't repeat it here.

Fig. 10 is a schematic structural diagram of a chip according to an embodiment of the present invention. The chip 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from the memory to implement the method in the embodiment of the present invention.

Optionally, as shown in FIG. 10, the chip 1000 may further include a memory 1020. The processor 1010 can call and run a computer program from the memory 1020 to implement the method in the embodiment of the present invention.

The memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.

Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 can control the input interface 1030 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 can control the output interface 1040 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present invention, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present invention. For brevity, details are not described herein again.

It should be understood that the chip mentioned in the embodiment of the present invention may also be called a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

It should be understood that the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present invention may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiment of the present invention is intended to include but not limited to these and any other suitable types of memory.

FIG. 11 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 11, the communication system 800 includes a terminal device 810 and a network device 820.

Wherein, the terminal device 810 may be used to implement the corresponding functions implemented by the UE in the foregoing method, and the network device 820 may be used to implement the corresponding functions implemented by the network device in the foregoing method. For brevity, details are not described herein again.

The embodiment of the present invention also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device or the terminal device in the embodiment of the present invention, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present invention, for the sake of brevity , I won’t repeat it here.

The embodiment of the present invention also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device or the terminal device in the embodiment of the present invention, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present invention. For the sake of brevity, I won't repeat them here.

The embodiment of the present invention also provides a computer program.

Optionally, the computer program can be applied to the network device or the terminal device in the embodiment of the present invention. When the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present invention. , For the sake of brevity, I won’t repeat it here.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. It should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A method for receiving downlink control signaling, including:

The terminal device receives the first signaling;

Wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; when a preset condition is met, the target information field in the first signaling is used to indicate the information contained in the N channel groups The number of downlink channels, or used to indicate the number of downlink channels included in each channel group of N channel groups;

The preset conditions include:

The terminal device receives the second signaling, and the second uplink channel scheduled by the second signaling and the first uplink channel at least partially overlap in the time domain, and the second uplink channel is used to transmit M For feedback information corresponding to each channel group, N and M are positive integers, and N is less than or equal to M.
The method according to claim 1, wherein, in the case that the preset condition is not met,

The target information domain is a reserved information domain;

or,

The target information field is used to carry information irrelevant to the number of downlink channels included in the at least one channel group.
The method according to claim 2, wherein the reserved information domain is an information domain whose content is not read by the terminal device, or is an information domain whose content is not executed by the terminal device.
The method according to claim 1, wherein the method further comprises:

Before receiving the first signaling, the terminal device receives the second signaling.
The method according to claim 1 or 4, wherein the method further comprises:

Transmitting, by the terminal equipment, a codebook of feedback information through the first uplink channel;

Wherein, the feedback information codebook includes feedback information corresponding to the M channel groups;

The number of bits included in the feedback information codebook is determined according to the target information domain.
The method of claim 1, wherein:

The M channel groups include the N channel groups.
The method according to any one of claims 1, 4, 5, and 6, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in the first channel group Number, the M channel groups include the first channel group.
The method according to claim 7, wherein the first channel group is:

The downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

Or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

Or, the agreed channel group.
The method according to claim 8, wherein:

The second signaling includes first information, and the first information is used to indicate that the target information field is used to indicate the number of downlink channels included in each channel group of the N channel groups.
The method according to claim 8, wherein:

The second signaling includes second information, and the second information is used to indicate that the target information field is used to indicate the status of the downlink channel included in the channel group to which the downlink channel scheduled by the second signaling belongs Quantity.
The method according to claim 8, wherein the agreed channel group comprises:

The channel group with the largest or smallest number among the M channel groups.
A method for receiving downlink control signaling, including:

The network device sends the first signaling;

Wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; when a preset condition is met, the target information field in the first signaling is used to indicate the information contained in the N channel groups The number of downlink channels, or used to indicate the number of downlink channels included in each channel group of N channel groups;

The preset conditions include:

The second signaling is sent to the terminal equipment, and the second uplink channel scheduled by the second signaling and the first uplink channel at least partially overlap in the time domain, and the second uplink channel is used to transmit M For feedback information corresponding to each channel group, N and M are positive integers, and N is less than or equal to M.
The method according to claim 12, wherein, in the case that the preset condition is not met,

The target information field is a reserved information field; or, the target information field is used to carry information that is not related to the number of downlink channels included in the at least one channel group.
The method according to claim 12, wherein the method further comprises:

The network device sends the second signaling before sending the first signaling.
The method according to claim 12 or 14, wherein the method further comprises:

Receiving, by the network device, a codebook of feedback information through the first uplink channel;

Wherein, the feedback information codebook includes feedback information corresponding to the M channel groups;

The number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.
The method of claim 12, wherein:

The M channel groups include the N channel groups.
The method according to any one of claims 12, 14, 15, 16, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the number of downlink channels included in the first channel group In number, the M channel groups include the first channel group.
The method according to claim 17, wherein the first channel group is:

The downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

Or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

Or, the agreed channel group.
The method of claim 18, wherein:

The second signaling includes first information, and the first information is used to indicate that the target information field of the first signaling is used to indicate the downlink included in each of the N channel groups The number of channels.
The method of claim 18, wherein:

The second signaling includes second information, and the second information is used to indicate that the target information field of the first signaling is used to indicate the channel group to which the downlink channel scheduled by the second signaling belongs The number of downlink channels included in.
The method according to claim 18, wherein the agreed channel group comprises:

The channel group with the largest or smallest number among the M channel groups.
A terminal device, including:

The first communication unit receives the first signaling;

Wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; when a preset condition is met, the target information field in the first signaling is used to indicate the information contained in the N channel groups The number of downlink channels, or used to indicate the number of downlink channels included in each channel group of N channel groups;

The preset conditions include:

The terminal device receives the second signaling, and the second uplink channel scheduled by the second signaling and the first uplink channel at least partially overlap in the time domain, and the second uplink channel is used to transmit M For feedback information corresponding to each channel group, N and M are positive integers, and N is less than or equal to M.
The terminal device according to claim 22, wherein, in the case that the preset condition is not satisfied,

The target information field is a reserved information field; or, the target information field is used to carry information that is not related to the number of downlink channels included in the at least one channel group.
The terminal device according to claim 23, wherein the reserved information domain is an information domain whose content is not read by the terminal device, or is an information domain whose content is not executed by the terminal device.
The terminal device according to claim 22, wherein the first communication unit receives the second signaling before receiving the first signaling.
The terminal device according to claim 22 or 25, wherein the first communication unit transmits a codebook of feedback information through the first uplink channel;

Wherein, the feedback information codebook includes feedback information corresponding to the M channel groups;

The number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.
The terminal device according to claim 22, wherein:

The M channel groups include the N channel groups.
The terminal device according to any one of claims 22, 25, 26, 27, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the downlink channels included in the first channel group The number of M channel groups includes the first channel group.
The terminal device according to claim 28, wherein the first channel group is:

The downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

Or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

Or, the agreed channel group.
The terminal device according to claim 29, wherein:

The second signaling includes first information, and the first information is used to indicate that the target information field of the first signaling is used to indicate the downlink included in each of the N channel groups The number of channels.
The terminal device according to claim 29, wherein:

The second signaling includes second information, and the second information is used to indicate that the target information field of the first signaling is used to indicate the channel group to which the downlink channel scheduled by the second signaling belongs The number of downlink channels included in.
The terminal device according to claim 29, wherein the agreed channel group includes:

The channel group with the largest or smallest number among the M channel groups.
A network device including:

The second communication unit sends the first signaling;

Wherein, the first signaling is used to instruct the terminal equipment to transmit the first uplink channel; when a preset condition is met, the target information field in the first signaling is used to indicate the information contained in the N channel groups The number of downlink channels, or used to indicate the number of downlink channels included in each channel group of N channel groups;

The preset conditions include:

The second signaling is sent to the terminal equipment, and the second uplink channel scheduled by the second signaling and the first uplink channel at least partially overlap in the time domain, and the second uplink channel is used to transmit M For feedback information corresponding to each channel group, N and M are positive integers, and N is less than or equal to M.
The network device according to claim 33, wherein, in the case that the preset condition is not met,

The target information field is a reserved information field; or, the target information field is used to carry information that is not related to the number of downlink channels included in the at least one channel group.
The network device according to claim 33, wherein the second communication unit sends the second signaling before sending the first signaling.
The network device according to claim 33 or 35, wherein the second communication unit receives the feedback information codebook through the first uplink channel;

Wherein, the feedback information codebook includes feedback information corresponding to the M channel groups;

The number of bits included in the feedback information codebook is determined according to the content indicated by the target information field.
The network device according to claim 33, wherein:

The M channel groups include the N channel groups.
The network device according to any one of claims 33, 35, 36, 37, wherein when N is equal to 1, the number of downlink channels included in the N channel groups is: the downlink channels included in the first channel group The number of M channel groups includes the first channel group.
The network device according to claim 38, wherein the first channel group is:

The downlink channel scheduled by the second signaling or the channel group to which the downlink channel carrying the second signaling belongs;

Or, a channel group other than the channel group to which the downlink channel scheduled by the second signaling belongs;

Or, the agreed channel group.
The network device according to claim 39, wherein:

The second signaling includes first information, and the first information is used to indicate that the content indicated by the target information field of the first signaling is that each of the N channel groups includes The number of downlink channels.
The network device according to claim 39, wherein:

The second signaling includes second information, and the second information is used to indicate that the content indicated by the target information field of the first signaling belongs to the downlink channel scheduled by the second signaling The number of downlink channels included in the channel group.
The network device according to claim 39, wherein the agreed channel group comprises:

The channel group with the largest or smallest number among the M channel groups.
A method for receiving downlink control signaling, including:

The terminal device receives the first signaling; the first signaling includes a first information field and a second information field;

The first information field is used to indicate the number of downlink channels included in the target channel group; the second information field is used to indicate that the target channel group indicated by the first information field is at least two channel groups one of the.
A method for receiving downlink control signaling, including:

The network device sends first signaling; the first signaling includes a first information field and a second information field;

Wherein, the first information field is used to indicate to the terminal device the number of downlink channels included in the target channel group; the second information field is used to indicate that the target channel group indicated by the first information field is at least two One of two channel groups.
A terminal device, including:

The first communication unit receives first signaling; the first signaling includes a first information field and a second information field;

The first information field is used to indicate the number of downlink channels included in the target channel group; the second information field is used to indicate that the target channel group indicated by the first information field is at least two channel groups one of the.
A network device including:

The second communication unit sends first signaling; the first signaling includes a first information field and a second information field;

Wherein, the first information field is used to indicate to the terminal device the number of downlink channels included in the target channel group; the second information field is used to indicate that the target channel group indicated by the first information field is at least two One of two channel groups.
A terminal device, including: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1-11 and 43.
A network device including: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 12-21 and 44.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-11, 43.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 12-21 and 44.
A computer-readable storage medium used to store a computer program that enables a computer to execute the steps of the method according to any one of claims 1-21, 43, and 44.
A computer program product comprising computer program instructions that cause a computer to execute the method according to any one of claims 1-21, 43, and 44.
A computer program that causes a computer to execute the method according to any one of claims 1-21, 43, and 44.