WO2020206605A1 - Downlink control signalling transmission method and related product - Google Patents

Abstract

A downlink control signalling transmission method and a related product. The method comprises: receiving first downlink control information (DCI), wherein the first DCI does not comprise a priority indication information field; receiving second DCI, wherein the second DCI comprises the priority indication information field, and a transmission resource corresponding to the first DCI partially overlaps or completely overlaps with a transmission resource corresponding to the second DCI; and determining, according to a target information field in the first DCI, the priority of a channel or information corresponding to the first DCI. It can thus be ensured that, on the premise that the load size of first DCI remains unchanged, a priority indication is provided to support flexible scheduling of URLLC.

Description

Downlink control signaling transmission method and related products Technical field

This application relates to the field of communication technology, in particular to a downlink control signaling transmission method and related products.

Background technique

The Downlink Control Channel (Physical Downlink Control Channel, PDCCH) bears the Downlink Control Information (DCI) sent by the network device to the terminal device. PDCCH can support multiple downlink control information formats and aggregation levels. DCI formats 0_0 and 0_1 are used to schedule Physical Uplink Shared Channel (PUSCH), and DCI formats 1_0 and 1_1 are used to schedule Physical Downlink Shared Channel (Physical Uplink Shared Channel, PUSCH). Downlink Shared Channel, PDSCH). Different DCI formats essentially correspond to different payload sizes, and the more formats, the greater the complexity of blind detection. In order to reduce the complexity of blind detection of terminal equipment as much as possible, the number of different DCI load sizes detected in each time slot is limited to no more than 4, and different DCIs scrambled by the CellRadioNetworkTemporaryIdentifier (C-RNTI) The number of load sizes does not exceed three. In order to meet the limitation on the size of the DCI load, the length of the DCI format 0_0 must always be consistent with the length of the DCI format 1_0. If the number of information bits in DCI format 0_0 is not equal to the number of information bits in DCI format 1_0, the information bits in DCI format 0_0 or DCI format 1_0 need to be zero-padded or truncated to ensure that the DCI format 0_0 and DCI format 1_0 The load size is equal.

Ultra-reliable and low latency (Ultra-reliable and low latency, URLLC) services are characterized by achieving ultra-high reliability (e.g., 99.999%) transmission within extreme latency (e.g., 1 ms). Compared with Enhance Mobile Broadband (eMBB) services, URLLC processing delay is significantly reduced. When the terminal device supports both eMBB and URLLC services, in order to ensure the short delay of URLLC, the URLLC channel scheduled later will occupy the resources of the eMBB channel scheduled first.

However, in order to ensure the basic data connection of the terminal device, the content in the current DCI format 0_0 and DCI format 1_0 needs to be stable, and the priority indication information field cannot be increased. As a result, the terminal device cannot obtain the corresponding channels or channels of DCI format 0_0 and DCI format 1_0. The priority of the information. In order to ensure that the terminal device obtains the URLLC priority information, the DCI format 0_0 and the DCI format 1_0 cannot be used for scheduling, which results in the limitation of URLLC scheduling.

Summary of the invention

The embodiment of the present application provides a downlink control signaling transmission method and related products, which can provide a priority indication under the premise that the size of the first DCI load remains unchanged, so as to support flexible scheduling of URLLC.

In the first aspect, an embodiment of the present application provides a downlink control signaling transmission method, including:

The terminal device receives the first downlink control signaling DCI, the format of the first DCI or the target information field in the first DCI is used to indicate the priority of the channel or information scheduled by the first DCI, and the target The information field is the padding bit in the first DCI or the downlink allocation index DAI field in the first DCI;

The terminal device determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI or the target information field in the first DCI.

In the second aspect, embodiments of the present application provide another method for transmitting downlink control signaling, including:

The network device configures the format of the first DCI or the target information field in the first DCI, and the format of the first DCI or the target information field in the first DCI is used to indicate the channel or the channel scheduled by the first DCI. Priority of the information, the target information field is the padding bit in the first DCI or the DAI field in the first DCI;

The network device sends the first DCI to a terminal device.

In a third aspect, an embodiment of the present application provides a terminal device, which has a function of implementing the method design described in the first aspect. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions. In a possible design, the terminal device includes a processor, and the processor is configured to support the terminal device to perform corresponding functions in the foregoing method. Further, the terminal device may also include a communication interface, and the communication interface is used to support communication between the terminal device and the network device. Further, the terminal device may also include a memory, which is used for coupling with the processor and stores necessary program instructions and data of the terminal device.

In a fourth aspect, an embodiment of the present application provides a network device that has the function of implementing the method design described in the second aspect. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-mentioned functions. In a possible design, the network device includes a processor, and the processor is configured to support the network device to perform corresponding functions in the foregoing method. Further, the network device may also include a transceiver, which is used to support communication between the network device and the terminal device. Further, the network device may also include a memory, which is used for coupling with the processor and stores necessary program instructions and data for the network device.

In a fifth aspect, an embodiment of the present application provides a terminal device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing steps in any method of the first aspect of the embodiments of the present application.

In a sixth aspect, an embodiment of the present application provides a network device, including a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and configured by The processor executes, and the program includes instructions for executing steps in any method in the second aspect of the embodiments of the present application.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the For example, some or all of the steps described in any method of the first aspect.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the Examples include some or all of the steps described in any method of the second aspect.

In a ninth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Part or all of the steps described in any method in the first aspect of the application embodiment. The computer program product may be a software installation package.

In a tenth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Part or all of the steps described in any method in the second aspect of the application embodiment. The computer program product may be a software installation package.

It can be seen that in this embodiment of the application, the terminal device can determine the priority of the channel or information scheduled by the first DCI according to the format of the first DCI or the target information field in the first DCI, ensuring that the load size of the first DCI remains unchanged. Under the premise (that is, it does not affect compatibility, does not affect the blind detection of the terminal, does not affect the basic data connection), the priority indication is provided to support the flexible scheduling of URLLC.

Description of the drawings

The following will briefly introduce the drawings needed in the description of the embodiments or the prior art.

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

2 is a schematic flowchart of a method for transmitting downlink control signaling according to an embodiment of the present application;

FIG. 3 is a schematic flowchart of another method for transmitting downlink control signaling according to an embodiment of the present application;

4 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another terminal device provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application;

Fig. 7 is a schematic structural diagram of another network device provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The technical solutions of the embodiments of this application can be applied to various communication systems, for example: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex) , TDD) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed on unlicensed frequency bands spectrum, LTE-U) system, NR-U system, Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (MTC), and vehicle to vehicle (V2V) communication, etc. The embodiments of this application can also be applied to these communications system.

Exemplarily, the communication system 100 applied in the embodiment of the present application is 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 terminal device 120 (or called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be an evolved base station (Evolutional Node B, eNB, or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or The network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a future evolved communication system.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 and the network device 110 may be connected wirelessly or wiredly. When the terminal device 120 and the network device 110 are connected wirelessly, the terminal device may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device. Terminal equipment may refer to an access terminal, user equipment (UE), user unit, user station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user agent, or user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolving communication systems, etc.

Optionally, D2D communication may be performed between the terminal device 120 and other terminal devices or user equipment.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

FIG. 1 exemplarily shows a communication system 100. The communication system 110 includes a network device 110 and two terminal devices 120. Optionally, the communication system 100 may include multiple network devices, and the coverage of each network device may include one or more terminal devices, which is not limited in the embodiment of the present application.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

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 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.

In a traditional communication system, when a terminal device supports both eMBB and URLLC services, in order to ensure the short delay of URLLC, the URLLC channel scheduled later will occupy the resources of the eMBB channel scheduled first. At this time, if the terminal device can distinguish the priority of the channel with overlapping resources, it can ensure that the channel with the higher priority is transmitted. Therefore, in the DCI format, a priority indication information field can be added, and the function of the priority indication information field is to notify the terminal device of the priority of the current DCI corresponding channel or information. However, in order to ensure the basic data connection of the terminal device, the content in the DCI format 0_0 and DCI format 1_0 needs to be stable, and the priority indication information field cannot be added, resulting in the terminal device being unable to obtain the priority of the corresponding information in the DCI format 0_0 and DCI format 1_0 . In order to ensure that the terminal device obtains the URLLC priority information, the DCI format 0_0 and the DCI format 1_0 cannot be used for scheduling, which results in the limitation of URLLC scheduling.

In view of the foregoing problems, the embodiments of the present application propose the following embodiments, which are described in detail below with reference to the drawings.

Please refer to FIG. 2. FIG. 2 is a downlink control signaling transmission method provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes:

S201: The network device configures a target information field in the first DCI, where the target information field is used to indicate the priority of the channel or information scheduled by the first DCI.

In an implementation manner, the target information field may be Padding bits or a Downlink assignment index (DAI) field. For example, the network device may configure N bits in the target information field to indicate the priority of the channel or information scheduled by the first DCI, where the length of the target information field is L bits, and N is the priority indicator included in the second DCI The length of the information field, L≥N, both L and N are positive integers. For another example, the network device may configure the M bit in the target information field to indicate the priority of the channel or information scheduled by the first DCI, where M≤L, L<N, and M is a positive integer.

In an implementation manner, the first DCI may be a DCI formatted as 0_0 or 1_0. Optionally, the first DCI may be a DCI capable of adding a priority indication information field but not adding a priority indication information field. For example, the first DCI may be a DCI with a format of 0_1 or 1_1. Exemplarily, the DCI in the format of 0_0 is used to schedule the PUSCH, and the DCI in the format of 1_0 is used to schedule the PDSCH or indicate the release of semi-persistent (Semi-Persistent Scheduling, SPS) resources.

In an implementation manner, it is assumed that the format of the first DCI is 1_0. When a semi-static HARQ codebook generation method (referred to as Type-1 HARQ-ACK codebook in the protocol) is used, the target information field is the DAI information field.

In an implementation manner, assuming that the format of the first DCI is 1_0, when the dynamic HARQ codebook generation method (referred to as Type-2 HARQ-ACK codebook in the protocol) is used, the priority of the channel or information corresponding to the first DCI is The lowest priority.

S202: The network device sends the first DCI to the terminal device.

In an implementation manner, the terminal device may receive the second DCI. Specifically, the terminal device may receive the second DCI from the communication device. For example, the terminal device may receive the second DCI from the network device.

Optionally, the second DCI may be a DCI formatted as 0_1 or 1_1.

Wherein, the second DCI includes a priority indication information field, and the priority indication information field is used to indicate the priority of the channel or information of the second DCI.

Table 1

N=2bits	priority
00	Grade 1
01	Level 2
10	Level 3
11	Level 4

Exemplarily, N is the length of the priority indication information field included in the second DCI, assuming N=2, the correspondence between the value of the priority indication information field included in the second DCI and the priority can be as shown in the table As shown in 1, if the value of the priority indication information field included in the second DCI is 00, the terminal device can determine that the priority of the channel or information scheduled by the second DCI is level 1. If the value of the priority indication information field included in the second DCI is 01, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 2. If the value of the priority indication information field included in the second DCI is 10, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 3. If the value of the priority indication information field included in the second DCI is 11, the terminal device may determine that the priority of the channel or information scheduled by the second DCI is level 4. In Table 1, Level 1, Level 2, Level 3, and Level 4 are different priorities. Illustratively, Level 1 may be the highest priority, Level 1 is higher than Level 2, Level 2 is higher than Level 3, and Level 3 is higher. At level 4, level 4 can be the lowest priority.

In an implementation manner, the channel or information scheduled by the first DCI and the channel or information scheduled by the second DCI at least partially overlap, for example, partially overlap or completely overlap.

In an implementation manner, both the first DCI and the second DCI are used to schedule the target channel or target information, where the target signal or target information is a downlink channel or a downlink signal, or an uplink channel or an uplink signal.

It should be noted that the embodiment of the present application does not limit the sequence in which the terminal device receives the first DCI and the second DCI. For example, the terminal device can receive the second DCI after receiving the first DCI; another example is the terminal device can receive the second DCI. After that, the first DCI is received; another example is that the terminal device can receive the first DCI and the second DCI in the same time period.

S203. The terminal device determines the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI.

In an implementation manner, the terminal device may determine the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI and the priority indication information field included in the second DCI.

In an implementation manner, the N bits in the target information field are used to indicate the priority of the channel or information scheduled by the first DCI, where the length of the target information field is L bits, and N is the priority included in the second DCI Indicates the length of the information field, L≥N, and both L and N are positive integers.

In this embodiment, after receiving the first DCI and the second DCI, the terminal device may obtain the length L of the target information field of the first DCI and the length N of the priority indication information field included in the second DCI. When L≥N, the terminal device can use N bits in the target information field to determine the priority of the channel or information scheduled by the first DCI.

Taking Table 1 as an example, assuming N=2, the corresponding relationship between the value of N bits in the target information field and the first priority can be as shown in Table 1. If the value of N bits in the target information field is 00, Then, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is level 1. If the value of N bits in the target information field is 01, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 2. If the value of N bits in the target information field is 10, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is level 3. If the value of N bits in the target information field is 11, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 4.

In this embodiment, the terminal device can make full use of the target information field for precise priority indication.

In one implementation, the most significant bit or the least significant bit of the L bits constitutes N bits.

For example, suppose the value of the L bit is 1001, and the highest bit of the L bits constitutes N bits. The terminal device can intercept the bits of length N from left to right in the L bits. If N=2, the value of N bits Can be 10. The terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 3 by looking up the table 1.

For another example, suppose that the value of L bits is 1001, and the lowest bit of L bits constitutes N bits. The terminal device can intercept bits of length N from right to left in the L bits. If N=2, the N bits are taken The value can be 01. The terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 2 by looking up the table 1.

In an implementation manner, the terminal device may determine the priority of the channel or information scheduled by the first DCI according to the corresponding relationship between the value of N bits in the target information field and the first priority. The correspondence is the correspondence between the value of the priority indication information field included in the second DCI and the priority.

For example, suppose that the value of the priority indication information field in the second DCI is 10, N=2, and the value of the target information field in the first DCI is 100, L=3, and the terminal device uses the lookup table 1. It may be determined that the priority of the channel or information scheduled by the second DCI is level 3. If the value of the N bit in the target information field is 00, the terminal device can determine that the priority indicated by the priority indication information field with a value of 00 is level 1 through the look-up table 1, and thus obtain the first DCI scheduled channel or The priority of the information is level 1. Since level 1 is higher than level 3, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is higher than the priority of the channel or information scheduled by the second DCI.

In an implementation manner, different values of the priority indication information field included in the second DCI correspond to different priorities. In other words, the value of the priority indication information field included in the second DCI and the priority have a one-to-one correspondence. Taking Table 1 as an example, the value of the priority indication information field included in the second DCI is 00, and the corresponding priority is level 1. The value of the priority indication information field included in the second DCI is 01, and the corresponding priority is level 2. The value of the priority indication information field included in the second DCI is 10, and the corresponding priority is level 3. The value of the priority indication information field included in the second DCI is 11, and the corresponding priority is level 4.

In an implementation manner, the M bits in the target information field are used to indicate that the priority of the channel or information corresponding to the first DCI is the target priority, where M≤L, L<N, and L, N, and M are all positive. Integer.

In an implementation manner, M may be equal to 1, and the target priority is the highest priority or not the highest priority.

For example, if the value of the M bit is 1, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is the highest priority; if the value of the M bit is 0, the terminal device can determine the channel that is scheduled by the first DCI Or the priority of the information is not the highest priority, such as the lowest priority or a priority lower than the highest priority and higher than the lowest priority.

In this embodiment, it can be ensured that the terminal device recognizes the highest priority among the priority of the channel or information scheduled by the first DCI and the priority of the channel or information scheduled by the second DCI, and the signaling overhead is small. widely.

Optionally, M can be equal to L.

Table 2

Exemplarily, assuming that N=3, L=2, M=L=2, the corresponding relationship between the value of M bits in the target information field and the second priority can be as shown in Table 2. If the value of L bit If it is 00, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 through the lookup table 2. If the value of the L bit is 01, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 2 through the lookup table 2. If the value of the L bit is 10, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 3 through the lookup table 2. If the value of the L bit is 11, the terminal device can determine through the lookup table 2 that the priority of the channel or information scheduled by the first DCI is the combined level of level 4 to level 8. In Table 2, level 1 to level 8 are different priorities. Illustratively, level 1 may be the highest priority, level 1 is higher than level 2, level 2 is higher than level 3, and level 3 is higher than level 4. By analogy, level 8 can be the lowest priority.

For example, suppose the value of the priority indication information field in the second DCI is 010, N=3, and the value of the target information field in the first DCI is 11, L=2, and the terminal device uses the lookup table 2. It may be determined that the priority of the channel or information scheduled by the second DCI is level 3. If the value of the M bit in the target information field is 11, the terminal device can determine that the target priority is the combined level of level 4 to level 8 through the look-up table 2, thus obtaining the priority of the channel or information scheduled by the first DCI This is the combined level of level 4 to level 8. Since level 3 is higher than the combined level of level 4 to level 8, the terminal device can determine that the priority of the channel or information scheduled by the second DCI is higher than the priority of the channel or information scheduled by the first DCI.

For example, suppose that the value of the priority indication information field in the second DCI is 111, N=3, and the value of the target information field in the first DCI is 11, L=2, and the terminal device uses the lookup table 2. It may be determined that the priority of the channel or information scheduled by the second DCI is level 8. If the value of the M bit in the target information field is 11, the terminal device can determine that the target priority is the combined level of level 4 to level 8 through the look-up table 2, thus obtaining the priority of the channel or information scheduled by the first DCI This is the combined level of level 4 to level 8. Since level 8 is the same as the combined level of level 4 to level 8, the terminal device can determine that the priority of the channel or information scheduled by the second DCI is equal to the priority of the channel or information scheduled by the first DCI.

In one implementation, M can be configured by a network device.

In this embodiment, the network device may configure the length of M bits, and the network device sends instruction information to the terminal device, and the instruction information is used to indicate the length of M bits. The terminal device can determine the length of M bits according to the indication information, and then determine the value of M bits in the target information field, and determine the priority of the channel or information scheduled by the first DCI according to the value of M bits.

In an implementation manner, the terminal device may determine the priority of the channel or information scheduled by the first DCI according to the corresponding relationship between the value of M bits in the target information field and the second priority. The correspondence is the correspondence between the value of M bits in the target information domain and the priority.

In an implementation manner, a value of M bits in the target information field in the correspondence relationship of the second priority corresponds to at least two of the multiple priorities included in the correspondence relationship of the first priority, where: The correspondence between the first priority is the correspondence between the value of the priority indication information field included in the second DCI and the priority, and the correspondence between the first priority includes multiple priorities.

Exemplarily, if the value of the M bit is 00, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 through the lookup table 2. If the value of the M bit is 11, the terminal device can determine through the lookup table 2 that the priority of the channel or information scheduled by the first DCI is the combined level of level 4 to level 8.

table 3

Exemplarily, if the value of the M bit is 00, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 through the lookup table 3. If the value of the M bit is 01, the terminal device can determine through the lookup table 3 that the priority of the channel or information scheduled by the first DCI is the combined level of level 2 and level 3. If the value of the M bit is 10, the terminal device can determine through the lookup table 3 that the priority of the channel or information scheduled by the first DCI is the combined level of level 4 and level 5. If the value of the M bit is 11, the terminal device can determine through the lookup table 3 that the priority of the channel or information scheduled by the first DCI is the combined level of level 6, level 7, and level 8. In Table 3, level 1 to level 8 are different priorities. Illustratively, level 1 may be the highest priority, level 1 is higher than level 2, level 2 is higher than level 3, and level 3 is higher than level 4. By analogy, level 8 can be the lowest priority.

Optionally, the above at least two priority levels are adjacent.

Taking Table 2 as an example, the corresponding relationship of the first priority includes multiple priorities of level 1 to level 8. When the value of the M bit is 11, at least two of the multiple priority levels included in the corresponding first priority correspondence relationship include level 4, level 5, level 6, level 7, and level 8. Levels 5 to 8 are adjacent.

Taking Table 3 as an example, the corresponding relationship of the first priority includes multiple priorities ranging from level 1 to level 8. When the value of the M bit is 01, at least two priority levels of the multiple priority levels included in the corresponding first priority correspondence relationship include level 2 and level 3. Level 2 and Level 3 are adjacent to each other. When the value of the M bit is 10, at least two priority levels of the multiple priorities included in the corresponding first priority correspondence relationship include level 4 and level 5. Level 4 and Level 5 are adjacent to each other. When the value of the M bit is 11, at least two priority levels of the multiple priorities included in the corresponding first priority correspondence relationship include level 6, level 7, and level 8. Levels 6 to 8 are adjacent.

In an implementation manner, the K values included in the value of the M bits in the target information field in the correspondence of the second priority respectively correspond to one of the multiple priorities included in the correspondence of the first priority. K priority levels, where different values of the K values correspond to different priority levels of the K priority levels, and K is a positive integer.

Taking Table 2 as an example, when the value of the M bit is 00, it corresponds to level 1, which is the highest priority, among the multiple priorities included in the corresponding relationship of the first priority. When the value of the M bit is 01, it corresponds to level 2 of the multiple priority levels included in the corresponding relationship of the first priority level, that is, the priority level is the higher priority level second only to level 1. When the value of the M bit is 10, it corresponds to level 3 of the multiple priorities included in the corresponding relationship of the first priority, that is, the priority is second only to the higher priority of level 1 and level 2.

In one implementation, K is equal to 1, or K is less than or equal to 2 ^M -1.

In an implementation manner, the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.

Taking Table 3 as an example, when the value of the M bit is 00, it corresponds to one of the multiple priorities included in the corresponding relationship of the first priority. The priority is level 1, which is the highest priority; M bits When the value of is 01, it corresponds to two priorities among the multiple priorities included in the corresponding relationship for the first priority; when the bit value of the M bit is 10, the corresponding relationship for the first priority includes multiple priorities. Two of the priority levels; when the bit value of the M bit is 11, it corresponds to three priority levels of the multiple priority levels included in the correspondence relationship of the first priority level. It can be seen that, K=1, and a priority corresponding to the value 00 of the M bit is the highest priority among the multiple priorities included in the first priority correspondence.

Taking Table 2 as an example, when the value of the M bit is 00, it corresponds to one of the multiple priorities included in the corresponding relationship of the first priority, and the priority is level 1; the value of the M bit is 01 When the first priority corresponds to one of the multiple priorities included in the corresponding relationship, the priority is level 2; when the value of the M bit is 10, the corresponding first priority corresponding relationship includes One of the multiple priorities, the priority is level 3; when the value of the M bit is 11, it corresponds to the five priorities of the multiple priorities included in the corresponding relationship of the first priority. It can be seen that K is less than or equal to 2 ² -1=3, and the three priority levels corresponding to the values of 00, 01, and 10 of M bits are the first priority. The corresponding relationship includes multiple priority levels from 1 to Level 3, Level 1 to Level 3 are the highest priority among Level 1 to Level 8.

In an implementation manner, the corresponding relationship of the second priority may be flexibly configured by the network device.

In an implementation manner, the DAI information field is also used to determine whether the DAI value corresponding to the first DCI is equal to 1. For example, the terminal device can determine the value of DAI according to the DAI domain. When the value of DAI is 1, the terminal device can determine that the number of bits of the feedback information corresponding to the channel or information scheduled by the first DCI is 1; when the value of DAI is not 1. At this time, the terminal device may determine the codebook of feedback information corresponding to the channel or information scheduled by the first DCI according to the preset feedback timing set.

In this embodiment, part of the DAI indication function is still reserved in the DAI information field, which is mainly used to distinguish whether the DAI value in the current DCI is equal to 1.

Table 4

DAI	Instructions
00	DAI value = 1
01	DAI value = 1, level 1
10	DAI value≠1, level 1
11	DAI value≠1

Exemplarily, when the value of the DAI information field is 01 or 10, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 by looking up Table 4.

table 5

DAI	Instructions
00	DAI value = 1, level 1
01	DAI value≠1, level 1
10	DAI value = 1, non-level 1
11	DAI value≠1, not level 1

Exemplarily, when the value of the DAI information field is 00, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 by looking up the table 5. When the value of the DAI information field is 01, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 by looking up the table 5. When the value of the DAI information field is 10, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is not level 1, or in other words, other levels than level 1, by looking up table 5. When the value of the DAI information field is 11, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is non-level 1 by looking up the table 5.

In this embodiment, for the 15th version (Release 15, Rel-15) Type-1 hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) codebook, there is a special case, that is, when the terminal device only When a DCI is received in the CSS and DAI=1, the codebook only includes 1 bit of information, otherwise the size of the codebook depends on the configuration of the feedback timing set. Therefore, distinguishing whether DAI is equal to 1 can optimize the size of the codebook. Through this embodiment, the ability to optimize the codebook can be retained while providing priority indication.

Optionally, the first DCI is a DCI with a format of 1_0 transmitted in a common search space (Common search space, CSS).

In one implementation, different DAI information fields correspond to different priorities.

Table 6

DAI	Instructions
00	Grade 1
01	Level 2
10	Level 3
11	Level 4

Exemplarily, when the value of the DAI information field is 00, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 1 by looking up the table 6. When the value of the DAI information field is 01, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 2 by looking up the table 6. When the value of the DAI information field is 10, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 3 by looking up Table 6. When the value of the DAI information field is 11, the terminal device can determine that the priority of the channel or information scheduled by the first DCI is level 4 by looking up the table 6.

Optionally, the first DCI is a DCI with a format of 1_0 transmitted in a UE-specific search space (UE-specific search space, USS).

In this application, the terminal device can determine the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI, under the premise that the load size of the first DCI remains unchanged (that is, compatibility is not affected, It does not affect the blind detection of the terminal, does not affect the basic data connection), and provides a priority indication to support the flexible scheduling of URLLC.

The embodiment of the present application provides another downlink control signaling transmission method, which is applied to the above example communication system, and the method includes: a terminal device receives a first DCI, the first DCI does not include a priority indication information field. If the first DCI is a DCI with a format of 0_0, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the preset priority. The preset priority can be the highest priority or the lowest priority.

The priority determination scheme can be agreed upon by a protocol or configured by network equipment through high-level signaling.

Please refer to FIG. 3. FIG. 3 is another downlink control signaling transmission method provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes:

S301. The network device configures the format of the first DCI.

The network device may configure the format of the first DCI, and the format of the first DCI is used to indicate the priority of the channel or information scheduled by the first DCI. Wherein, if the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or if the first DCI is a DCI with a format of 0_0 transmitted in the CSS, then The priority of the channel or information scheduled by the first DCI is the highest priority; or if the first DCI is a DCI with a format 0_0 transmitted in the USS, the priority of the channel or information scheduled by the first DCI is the lowest priority.

S302. The network device sends the first DCI to the terminal device.

S303. The terminal device determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI.

In an implementation manner, if the format of the first DCI is 0_0, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority.

In an implementation manner, if the first DCI is a DCI with a format of 0_0 transmitted in the CSS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the highest priority. For example, if the terminal device receives the first DCI format of 0_0 in the CSS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the highest priority.

In an implementation manner, if the first DCI is a DCI with a format of 0_0 transmitted in the USS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the lowest priority. For example, if the terminal device receives the first DCI in the format 0_0 in the USS, the terminal device may determine that the priority of the channel or information scheduled by the first DCI is the lowest priority.

In this application, the terminal device can determine the priority of the channel or information scheduled by the first DCI according to the format of the first DCI, under the premise that the load size of the first DCI remains unchanged (that is, compatibility is not affected, and the terminal is not affected. Blind detection, does not affect the basic data connection), provides priority indication to support flexible scheduling of URLLC.

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of interaction between various network elements. It can be understood that, in order to realize the above-mentioned functions, the terminal equipment and the network equipment include hardware structures and/or software modules corresponding to the respective functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions 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 beyond the scope of this application.

The embodiment of the present application may divide the terminal device into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated unit can be realized in the form of hardware or software program module. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

In the case of adopting an integrated unit, FIG. 4 shows a block diagram of a possible functional unit composition of the terminal device involved in the foregoing embodiment. The terminal device 400 includes a processing unit 402 and a communication unit 403. The processing unit 402 is used to control and manage the actions of the terminal device. For example, the processing unit 402 is used to support the terminal device to perform step S203 in FIG. 2, step S303 in FIG. 3 and/or other technologies used in the technology described herein. process. The communication unit 403 is used to support communication between the terminal device and other devices, for example, communication with a network device. The terminal device may also include a storage unit 401 for storing program codes and data of the terminal device.

The processing unit 402 may be a processor or a controller, the communication unit 403 may be a communication interface, a transceiver, a transceiver circuit, a radio frequency chip, etc., and the storage unit 401 may be a memory.

The communication unit 403 is configured to receive the first DCI, and the format of the first DCI or the target information field in the first DCI is used to indicate the priority of the channel or information scheduled by the first DCI, The target information field is a padding bit in the first DCI or a downlink allocation index DAI field in the first DCI;

The processing unit 402 is configured to determine the priority of the channel or information scheduled by the first DCI according to the format of the first DCI or the target information field in the first DCI.

In a possible example, the processing unit 402 determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI, specifically for:

When the format of the first DCI is 0_0, it is determined that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in the common search space, determining that the priority of the channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in the dedicated search space, it is determined that the priority of the channel scheduled by the first DCI is the lowest priority.

In a possible example, the communication unit 403 is further configured to receive a second DCI, and the second DCI includes a priority indication information field.

In a possible example, the processing unit 402 determines the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI, specifically for:

Determine the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI.

In a possible example, the processing unit 402 determines the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI, specifically using in:

According to the corresponding relationship between the value of N bits in the target information field and the first priority, the priority of the channel or information scheduled by the first DCI is determined, wherein the corresponding relationship of the first priority is The corresponding relationship between the value of the priority indication information field included in the second DCI and the priority, and N is the length of the priority indication information field included in the second DCI.

In a possible example, different values of the priority indication information field included in the second DCI correspond to different priorities.

In a possible example, the processing unit 402 determines the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI, specifically using in:

Determine the priority of the channel or information scheduled by the first DCI according to the corresponding relationship between the value of M bits in the target information field and the second priority, wherein the corresponding relationship between the second priority is The corresponding relationship between the value of M bits in the target information field and the priority, M≤L, L<N, L, N, and M are all positive integers, L is the length of the target information field, and N is The length of the priority indication information field included in the second DCI.

In a possible example, a value of M bits in the target information field in the second priority correspondence relationship corresponds to at least two of the multiple priorities included in the first priority correspondence relationship. The corresponding relationship of the first priority is the corresponding relationship between the value of the priority indication information field included in the second DCI and the priority, and the corresponding relationship of the first priority includes Multiple priorities.

In a possible example, the at least two priority levels are adjacent.

In a possible example, the K values included in the value of the M bits in the target information field in the correspondence of the second priority respectively correspond to those included in the correspondence of the first priority. K priority levels among the multiple priority levels, wherein different values among the K values correspond to different priority levels among the K priority levels, and K is a positive integer.

In one possible example, K is equal to 1, or K is less than or equal to 2 ^M -1.

In a possible example, the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.

In a possible example, the processing unit 402 is further configured to determine the value of DAI according to the DAI domain; and when the value of DAI is 1, determine that the channel or information scheduled by the first DCI corresponds to The number of bits of the feedback information is 1; and when the value of DAI is not 1, the codebook of the feedback information corresponding to the channel or information scheduled by the first DCI is determined according to a preset feedback timing set

In a possible example, the format of the first DCI is 1_0 or 0_0; or

The first DCI is a DCI with a format of 1_0 transmitted in the common search space.

When the processing unit 402 is a processor, the communication unit 403 is a communication interface, and the storage unit 401 is a memory, the terminal device involved in the embodiment of the present application may be the terminal device shown in FIG. 5.

In the case of using an integrated unit, FIG. 6 shows a block diagram of a possible functional unit composition of the network device involved in the foregoing embodiment. The network device 600 includes a processing unit 602 and a communication unit 603. The processing unit 602 is used to control and manage the actions of the network device. For example, the processing unit 602 is used to support the network device to perform steps S201 and S202 in FIG. 2, steps S301 and S302 in FIG. 3 and/or as described herein Other processes of the technology. The communication unit 603 is used to support communication between the network device and other devices, for example, communication with a terminal device. The network device may also include a storage unit 601 for storing program codes and data of the terminal device.

The processing unit 602 may be a processor or a controller, the communication unit 603 may be a transceiver, a transceiver circuit, a radio frequency chip, etc., and the storage unit 601 may be a memory.

The processing unit 602 is configured to configure the format of the first DCI or the target information field in the first DCI, and the format of the first DCI or the target information field in the first DCI is used to indicate the first DCI. A priority of a channel or information scheduled by DCI, where the target information field is a padding bit in the first DCI or a DAI field in the first DCI;

The communication unit 603 is configured to send the first DCI to a terminal device.

In a possible example, when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

When the first DCI is a DCI with a format of 0_0 received in the common search space, the priority of the channel or information scheduled by the first DCI is the highest priority; or

When the first DCI is a DCI with a format of 0_0 received in the dedicated search space, the priority of the channel scheduled by the first DCI is the lowest priority.

In a possible example, the communication unit 603 is further configured to send a second DCI to the terminal device, and the second DCI includes a priority indication information field.

In a possible example, the target information field and the priority indication information field included in the second DCI are used to determine the priority of the channel or information scheduled by the first DCI.

In a possible example, the priority of the channel or information scheduled by the first DCI is determined according to the corresponding relationship between the value of N bits in the target information field and the first priority, where the The correspondence between the first priority is the correspondence between the value of the priority indication information field included in the second DCI and the priority, and N is the length of the priority indication information field included in the second DCI .

In a possible example, different values of the priority indication information field included in the second DCI correspond to different priorities.

In a possible example, the priority of the channel or information scheduled by the first DCI is determined according to the corresponding relationship between the value of M bits in the target information field and the second priority, where the The corresponding relationship of the second priority is the corresponding relationship between the value of the M bit in the target information domain and the priority, M≤L, L<N, L, N, and M are all positive integers, and L is all The length of the target information field, and N is the length of the priority indication information field included in the second DCI.

In a possible example, a value of M bits in the target information field in the second priority correspondence relationship corresponds to at least two of the multiple priorities included in the first priority correspondence relationship. The corresponding relationship of the first priority is the corresponding relationship between the value of the priority indication information field included in the second DCI and the priority, and the corresponding relationship of the first priority includes Multiple priorities.

In a possible example, the at least two priority levels are adjacent.

In a possible example, the K values included in the value of the M bits in the target information field in the correspondence of the second priority respectively correspond to those included in the correspondence of the first priority. K priority levels among the multiple priority levels, wherein different values among the K values correspond to different priority levels among the K priority levels, and K is a positive integer.

In one possible example, K is equal to 1, or K is less than or equal to 2 ^M -1.

In a possible example, the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.

In a possible example, the DAI field is used to indicate the value of DAI;

When the value of the DAI is 1, the number of bits of feedback information corresponding to the channel or information scheduled by the first DCI is 1;

When the value of the DAI is not 1, the codebook of the feedback information corresponding to the channel or information scheduled by the first DCI is determined according to a preset feedback timing set.

In a possible example, the format of the first DCI is 1_0 or 0_0; or

The first DCI is a DCI with a format of 1_0 transmitted in the common search space.

When the processing unit 602 is a processor, the communication unit 603 is a transceiver, and the storage unit 601 is a memory, the network device involved in the embodiment of the present application may be the network device shown in FIG. 7.

In another embodiment, FIG. 6 shows a block diagram of a possible functional unit composition of the network device involved in the above embodiment, in which:

The processing unit 602 is configured to configure priority determination rules;

The communication unit 603 is configured to send a first DCI to a terminal device, where the first DCI does not include a priority indication information field;

Wherein, if the first DCI is the DCI format 0_0 transmitted in the CSS, the priority determination rule is used to indicate that the priority of the channel or information scheduled by the first DCI is the highest priority; A DCI is the DCI format 0_0 transmitted in the USS, and the priority determination rule is used to indicate that the priority of the channel or information scheduled by the first DCI is the lowest priority.

When the processing unit 602 is a processor, the communication unit 603 is a transceiver, and the storage unit 601 is a memory, the network device involved in the embodiment of the present application may be the network device shown in FIG. 7.

The embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Part or all of the steps described by the device.

The embodiments of the present application also provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method embodiments described above Part or all of the steps described in the terminal device. The computer program product may be a software installation package.

The steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions. Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in the ASIC. In addition, the ASIC may be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should be aware that in one or more of the foregoing examples, the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server, or data center via wired (for example, coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a Digital Video Disc (DVD)), or a semiconductor medium (for example, a Solid State Disk (SSD)) )Wait.

The specific implementations described above further describe the purpose, technical solutions and beneficial effects of the embodiments of this application in further detail. It should be understood that the above descriptions are only specific implementations of the embodiments of this application and are not intended to To limit the protection scope of the embodiments of the application, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the embodiments of the application shall be included in the protection scope of the embodiments of the application.

Claims (60)

1. A method for transmitting downlink control signaling, characterized in that it includes:

   The terminal device receives the first downlink control signaling DCI, the format of the first DCI or the target information field in the first DCI is used to indicate the priority of the channel or information scheduled by the first DCI, and the target The information field is the padding bit in the first DCI or the downlink allocation index DAI field in the first DCI;

   The terminal device determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI or the target information field in the first DCI.
2. The method according to claim 1, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the format of the first DCI comprises:

   When the format of the first DCI is 0_0, it is determined that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

   When the first DCI is a DCI with a format of 0_0 received in the common search space, determining that the priority of the channel or information scheduled by the first DCI is the highest priority; or

   When the first DCI is a DCI with a format of 0_0 received in the dedicated search space, it is determined that the priority of the channel scheduled by the first DCI is the lowest priority.
3. The method of claim 1, wherein the method further comprises

   The terminal device receives a second DCI, and the second DCI includes a priority indication information field.
4. The method of claim 3, wherein the terminal device determining the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI comprises:

   The terminal device determines the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI.
5. The method according to claim 4, wherein the terminal device determines the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI. Priority, including:

   The terminal device determines the priority of the channel or information scheduled by the first DCI according to the corresponding relationship between the value of N bits in the target information field and the first priority, where the first priority is The correspondence is the correspondence between the value of the priority indication information field included in the second DCI and the priority, and N is the length of the priority indication information field included in the second DCI.
6. The method according to claim 5, wherein different values of the priority indication information field included in the second DCI correspond to different priorities.
7. The method according to claim 4, wherein the terminal device determines the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI. Priority, including:

   The terminal device determines the priority of the channel or information scheduled by the first DCI according to the corresponding relationship between the value of M bits in the target information field and the second priority, where the second priority is The corresponding relationship is the corresponding relationship between the value of M bits in the target information domain and the priority, M≤L, L<N, L, N, and M are all positive integers, and L is the value of the target information domain. Length, N is the length of the priority indication information field included in the second DCI.
8. The method according to claim 7, wherein a value of M bits in the target information field in the second priority correspondence relationship corresponds to multiple priorities included in the first priority correspondence relationship The first priority is the corresponding relationship between the value of the priority indication information field included in the second DCI and the priority, and the first priority The correspondence between levels includes multiple priorities.
9. The method of claim 8, wherein the at least two priority levels are adjacent.
10. The method according to claim 7, wherein the K values included in the value of the M bits in the target information field in the corresponding relationship of the second priority respectively correspond to the first priority K priority levels among the multiple priority levels included in the correspondence relationship of, wherein different values among the K values correspond to different priority levels among the K priority levels, and K is a positive integer.
11. The method of claim 10, wherein K is equal to 1, or K is less than or equal to 2 ^M -1.
12. The method according to claim 10, wherein the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.
13. The method according to any one of claims 1-12, wherein the method further comprises:

    The terminal device determines the value of DAI according to the DAI domain;

    When the value of the DAI is 1, the terminal device determines that the number of bits of the feedback information corresponding to the channel or information scheduled by the first DCI is 1;

    When the value of the DAI is not 1, the terminal device determines the codebook of feedback information corresponding to the channel or information scheduled by the first DCI according to a preset feedback timing set.
14. The method according to any one of claims 1 or 3-12, wherein the format of the first DCI is 1_0 or 0_0; or

    The first DCI is a DCI with a format of 1_0 transmitted in the common search space.
15. A method for transmitting downlink control signaling, characterized in that it includes:

    The network device configures the format of the first DCI or the target information field in the first DCI, and the format of the first DCI or the target information field in the first DCI is used to indicate the channel or the channel scheduled by the first DCI. Priority of the information, the target information field is the padding bit in the first DCI or the DAI field in the first DCI;

    The network device sends the first DCI to a terminal device.
16. The method of claim 15, wherein when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

    When the first DCI is a DCI with a format of 0_0 received in the common search space, the priority of the channel or information scheduled by the first DCI is the highest priority; or

    When the first DCI is a DCI with a format of 0_0 received in the dedicated search space, the priority of the channel scheduled by the first DCI is the lowest priority.
17. The method according to claim 15, wherein the method further comprises:

    The network device sends a second DCI to the terminal device, and the second DCI includes a priority indication information field.
18. The method according to claim 17, wherein the target information field and the priority indication information field included in the second DCI are used to determine the priority of the channel or information scheduled by the first DCI.
19. The method according to claim 18, wherein the priority of the channel or information scheduled by the first DCI is determined according to the corresponding relationship between the value of N bits in the target information field and the first priority , Wherein the correspondence between the first priority is the correspondence between the value of the priority indication information field included in the second DCI and the priority, and N is the priority included in the second DCI The level indicates the length of the information field.
20. The method according to claim 19, wherein different values of the priority indication information field included in the second DCI correspond to different priorities.
21. The method according to claim 18, wherein the priority of the channel or information scheduled by the first DCI is determined according to the corresponding relationship between the value of M bits in the target information field and the second priority , Wherein the corresponding relationship of the second priority is the corresponding relationship between the value of M bits in the target information domain and the priority, M≤L, L<N, and L, N, and M are all A positive integer, L is the length of the target information field, and N is the length of the priority indication information field included in the second DCI.
22. The method according to claim 21, wherein a value of M bits in the target information field in the corresponding relationship of the second priority corresponds to multiple priorities included in the corresponding relationship of the first priority The first priority is the corresponding relationship between the value of the priority indication information field included in the second DCI and the priority, and the first priority The correspondence between levels includes multiple priorities.
23. The method of claim 22, wherein the at least two priority levels are adjacent.
24. The method according to claim 21, wherein the K values included in the value of the M bits in the target information field in the corresponding relationship of the second priority respectively correspond to the first priority K priority levels among the multiple priority levels included in the correspondence relationship of, wherein different values among the K values correspond to different priority levels among the K priority levels, and K is a positive integer.
25. The method of claim 24, wherein K is equal to 1, or K is less than or equal to 2 ^M -1.
26. The method according to claim 24, wherein the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.
27. The method according to any one of claims 15-26, wherein the DAI field is used to indicate the value of DAI;

    When the value of the DAI is 1, the number of bits of feedback information corresponding to the channel or information scheduled by the first DCI is 1;

    When the value of the DAI is not 1, the codebook of the feedback information corresponding to the channel or information scheduled by the first DCI is determined according to a preset feedback timing set.
28. The method according to any one of claims 15 or 17-26, wherein the format of the first DCI is 1_0 or 0_0; or

    The first DCI is a DCI with a format of 1_0 transmitted in the common search space.
29. A terminal device, characterized by comprising a processing unit and a communication unit,

    The communication unit is configured to receive the first DCI, the format of the first DCI or the target information field in the first DCI is used to indicate the priority of the channel or information scheduled by the first DCI, and the target The information field is the padding bit in the first DCI or the DAI field in the first DCI;

    The processing unit is configured to determine the priority of the channel or information scheduled by the first DCI according to the format of the first DCI or the target information field in the first DCI.
30. The terminal device according to claim 29, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the format of the first DCI, and is specifically configured to:

    When the format of the first DCI is 0_0, it is determined that the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

    When the first DCI is a DCI with a format of 0_0 received in the common search space, determining that the priority of the channel or information scheduled by the first DCI is the highest priority; or

    When the first DCI is a DCI with a format of 0_0 received in the dedicated search space, it is determined that the priority of the channel scheduled by the first DCI is the lowest priority.
31. The terminal device according to claim 29, wherein:

    The communication unit is further configured to receive a second DCI, and the second DCI includes a priority indication information field.
32. The terminal device according to claim 31, wherein the processing unit determines the priority of the channel or information scheduled by the first DCI according to the target information field in the first DCI, and is specifically configured to:

    Determine the priority of the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI.
33. The terminal device according to claim 32, wherein the processing unit determines the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI The priority, specifically used for:

    According to the corresponding relationship between the value of N bits in the target information field and the first priority, the priority of the channel or information scheduled by the first DCI is determined, wherein the corresponding relationship of the first priority is The corresponding relationship between the value of the priority indication information field included in the second DCI and the priority, and N is the length of the priority indication information field included in the second DCI.
34. The terminal device according to claim 33, wherein different values of the priority indication information field included in the second DCI correspond to different priorities.
35. The terminal device according to claim 32, wherein the processing unit determines the channel or information scheduled by the first DCI according to the target information field and the priority indication information field included in the second DCI The priority, specifically used for:

    Determine the priority of the channel or information scheduled by the first DCI according to the corresponding relationship between the value of M bits in the target information field and the second priority, where the corresponding relationship between the second priority is The corresponding relationship between the value of M bits in the target information field and the priority, M≤L, L<N, L, N, and M are all positive integers, L is the length of the target information field, and N is The length of the priority indication information field included in the second DCI.
36. The terminal device according to claim 35, wherein a value of M bits in the target information field in the second priority correspondence relationship corresponds to multiple priorities included in the first priority correspondence relationship. At least two priority levels in the first priority level, wherein the corresponding relationship between the first priority level is the corresponding relationship between the value of the priority indication information field included in the second DCI and the priority level, and the first priority level The priority correspondence relationship includes multiple priorities.
37. The terminal device of claim 36, wherein the at least two priority levels are adjacent.
38. The terminal device according to claim 35, wherein the K values included in the value of the M bits in the target information field in the corresponding relationship of the second priority respectively correspond to the first priority K priority levels among the multiple priority levels included in the level correspondence, wherein different values among the K values correspond to different priority levels among the K priority levels, and K is a positive integer.
39. The terminal device of claim 38, wherein K is equal to 1, or K is less than or equal to 2 ^M -1.
40. The terminal device according to claim 38, wherein the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.
41. The terminal device according to any one of claims 29-40, wherein:

    The processing unit is further configured to determine the value of DAI according to the DAI domain; and when the value of DAI is 1, determine that the number of bits of feedback information corresponding to the channel or information scheduled by the first DCI is 1; And when the value of the DAI is not 1, the codebook of the feedback information corresponding to the channel or information scheduled by the first DCI is determined according to a preset feedback timing set.
42. The terminal device according to any one of claims 29 or 31-40, wherein the format of the first DCI is 1_0 or 0_0; or

    The first DCI is a DCI with a format of 1_0 transmitted in the common search space.
43. A network device, characterized by comprising:

    A processing unit, configured to configure a format of a first DCI or a target information field in the first DCI, where the format of the first DCI or a target information field in the first DCI is used to indicate the first DCI scheduling The priority of the channel or information of the target information field is the padding bit in the first DCI or the DAI field in the first DCI;

    The communication unit is configured to send the first DCI to a terminal device.
44. The network device according to claim 43, wherein when the format of the first DCI is 0_0, the priority of the channel or information scheduled by the first DCI is the highest priority or the lowest priority; or

    When the first DCI is a DCI with a format of 0_0 received in the common search space, the priority of the channel or information scheduled by the first DCI is the highest priority; or

    When the first DCI is a DCI with a format of 0_0 received in the dedicated search space, the priority of the channel scheduled by the first DCI is the lowest priority.
45. The network device according to claim 43, wherein:

    The communication unit is further configured to send a second DCI to the terminal device, and the second DCI includes a priority indication information field.
46. The network device according to claim 45, wherein the target information field and the priority indication information field included in the second DCI are used to determine the priority of the channel or information scheduled by the first DCI.
47. The network device according to claim 46, wherein the priority of the channel or information scheduled by the first DCI is determined according to the corresponding relationship between the value of N bits in the target information field and the first priority Obtained, wherein the correspondence between the first priority is the correspondence between the value of the priority indication information field included in the second DCI and the priority, and N is the correspondence between the second DCI The priority indicates the length of the information field.
48. The network device according to claim 47, wherein different values of the priority indication information field included in the second DCI correspond to different priorities.
49. The network device according to claim 46, wherein the priority of the channel or information scheduled by the first DCI is determined according to the corresponding relationship between the value of M bits in the target information field and the second priority The corresponding relationship of the second priority is the corresponding relationship between the value of M bits in the target information field and the priority, M≤L, L<N, and L, N, and M are all Is a positive integer, L is the length of the target information field, and N is the length of the priority indication information field included in the second DCI.
50. The network device according to claim 49, wherein a value of M bits in the target information field in the second priority correspondence relationship corresponds to multiple priorities included in the first priority correspondence relationship. At least two priority levels in the first priority level, wherein the corresponding relationship between the first priority level is the corresponding relationship between the value of the priority indication information field included in the second DCI and the priority level, and the first priority level The priority correspondence relationship includes multiple priorities.
51. The network device of claim 50, wherein the at least two priority levels are adjacent.
52. The network device according to claim 49, wherein the K values included in the value of the M bits in the target information field in the corresponding relationship of the second priority respectively correspond to the first priority K priority levels among the multiple priority levels included in the level correspondence, wherein different values among the K values correspond to different priority levels among the K priority levels, and K is a positive integer.
53. The network device of claim 52, wherein K is equal to 1, or K is less than or equal to 2 ^M -1.
54. The network device according to claim 52, wherein the K priorities are the highest priority among the multiple priorities included in the corresponding relationship of the first priority.
55. The network device according to any one of claims 43-54, wherein the DAI field is used to indicate the value of DAI;

    When the value of the DAI is 1, the number of bits of feedback information corresponding to the channel or information scheduled by the first DCI is 1;

    When the value of the DAI is not 1, the codebook of the feedback information corresponding to the channel or information scheduled by the first DCI is determined according to a preset feedback timing set.
56. The network device according to any one of claims 43 or 45-54, wherein the format of the first DCI is 1_0 or 0_0; or

    The first DCI is a DCI with a format of 1_0 transmitted in the common search space.
57. A terminal device, characterized by comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory and configured to be executed by the processor, The program includes instructions for performing the steps in the method according to any one of claims 1-14.
58. A network device, characterized by comprising a processor, a memory, a transceiver, and one or more programs, the one or more programs are stored in the memory and configured to be executed by the processor, The program includes instructions for performing the steps in the method according to any one of claims 15-28.
59. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-14.
60. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 15-28.

Images