A method, apparatus and network device for transmitting downlink control information (DCI)

Abstract

The application discloses a transmission method, device and network equipment of downlink control information DCI, wherein the method comprises the following steps: determining a DCI format used for transmitting downlink control information DCI, wherein the DCI format comprises an aggregation transmission indication domain or a second indication domain, and the second indication domain indicates a configuration value of a time domain resource and a configuration value of an aggregation transmission indication; and transmitting the DCI according to the DCI format. The scheme of the application configures a DCI with a smaller load, thereby reducing the code rate of a PDCCH and improving the coverage range of the PDCCH under limited resource configuration.

Description

[0001] The present application is a divisional application of the application with the application number 201810147628.2, the application date of February 12, 2018, and the title of “Transmission method, device and network equipment of downlink control information DCI”. TECHNICAL FIELD

[0002] The present application relates to the technical field of communication, and in particular to a transmission method, device and network equipment of downlink control information DCI. BACKGROUND

[0003] Compared with the previous mobile communication system, the future 5G mobile communication system needs to adapt to more diversified scenarios and business requirements. The main scenarios of 5G include eMBB, URLLC, mMTC, which puts forward the requirements of high reliability, low latency, large bandwidth, wide coverage and so on to the system. For URLLC business, in order to meet the business index requirements of low latency and high reliability, the network can semi-statically configure the repeated transmission of the service channel in different slots, that is, the multiple transmissions of a transport block (PDSCH or PUSCH) in different slots. The network or UE can decode PDSCH or PUSCH based on multiple repeated transmissions to achieve the purpose of improving reliability, but this semi-static configuration cannot flexibly match the reliability requirements of different businesses.

[0004] In the NR system, DCI format 0_0 / 1_0 is used to schedule data under URLLC (high reliability and low latency scenario), and its code rate is high, resulting in a small PDCCH coverage range. SUMMARY

[0005] The embodiments of the present application provide a transmission method, device and network equipment of downlink control information DCI, to solve the problem of high PDCCH code rate and insufficient coverage range in the prior art when transmitting DCI.

[0006] In a first aspect, the embodiments of the present application provide a transmission method of downlink control information DCI, applied to a network equipment, comprising:

[0007] determining a DCI format used for transmitting downlink control information DCI, the DCI format comprising: an aggregation transmission indication domain or a second indication domain, the second indication domain indicating a configuration value of a time domain resource and a configuration value of an aggregation transmission indication;

[0008] transmitting the DCI according to the DCI format.

[0009] In a second aspect, the embodiments of the present application also provide a transmission device of downlink control information DCI, applied to a network equipment, comprising:

[0010] determining a DCI format for transmitting a downlink control information (DCI), the DCI format comprising: an aggregated transmission indication field or a second indication field, the second indication field indicating a configuration value of a time domain resource and a configuration value of an aggregated transmission indication;

[0011] transmitting the DCI according to the DCI format.

[0012] In a third aspect, an embodiment of the present application provides a network device, comprising:

[0013] determining a DCI format for transmitting a downlink control information (DCI), the DCI format comprising: an aggregated transmission indication field or a second indication field, the second indication field indicating a configuration value of a time domain resource and a configuration value of an aggregated transmission indication;

[0014] transmitting the DCI according to the DCI format.

[0015] In a fourth aspect, an embodiment of the present application provides a network device, the network device comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method for transmitting a downlink control information (DCI) when executing the computer program.

[0016] In a fifth aspect, an embodiment of the present application provides a computer readable storage medium, the computer readable storage medium storing a computer program, and the computer program implements the steps of the method for transmitting a downlink control information (DCI) when executed by a processor.

[0017] Thus, the method for transmitting a downlink control information (DCI) determines a DCI format for transmitting a downlink control information (DCI), the DCI format comprising: an aggregated transmission indication field or a second indication field, the second indication field indicating a configuration value of a time domain resource and a configuration value of an aggregated transmission indication; and transmitting the DCI according to the DCI format; thereby realizing a DCI with a smaller load, and reducing the code rate of a PDCCH and improving the coverage of the PDCCH under limited resource configuration. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0019] Figure 1A first flowchart illustrating the DCI transmission method according to an embodiment of the present invention;

[0020] Figure 2 A second flowchart illustrating the DCI transmission method according to an embodiment of the present invention;

[0021] Figure 3 An example diagram illustrating the sign offset of PDSCH relative to CORESET in an embodiment of the present invention;

[0022] Figure 4 This diagram illustrates a first example of the interval between aggregated transmissions in an embodiment of the present invention.

[0023] Figure 5 A second example diagram illustrating the interval between aggregated transmissions in an embodiment of the present invention;

[0024] Figure 6 A third flowchart illustrating a DCI transmission method according to an embodiment of the present invention;

[0025] Figure 7 A block diagram illustrating a DCI transmission apparatus according to an embodiment of the present invention;

[0026] Figure 8 A block diagram illustrating a network device according to an embodiment of the present invention. Detailed Implementation

[0027] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0028] The terms “first,” “second,” etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] like Figure 1 As shown, the downlink control information (DCI) transmission method of this invention, applied to a network device, includes:

[0030] Step 11, determine the DCI format for transmitting downlink control information (DCI), the DCI format including: an aggregate transmission indication field or a second indication field, the second indication field indicating the configuration value of time domain resources and the configuration value of aggregate transmission indication;

[0031] Step 12: Transmit the DCI according to the DCI format.

[0032] The downlink control information (DCI) transmission method of this invention determines a DCI format for transmitting the downlink control information (DCI), the DCI format including: an aggregation transmission indication field or a second indication field, the second indication field indicating the configuration value of time domain resources and the configuration value of the aggregation transmission indication; and transmits the DCI according to the DCI format; thereby realizing a DCI with a smaller configuration load, reducing the PDCCH code rate and improving the PDCCH coverage under limited resource configuration.

[0033] like Figure 2 As shown, the downlink control information (DCI) transmission method of this invention, applied to a network device, includes:

[0034] Step 21: Determine the DCI format for transmitting downlink control information (DCI), wherein the DCI format includes a time-domain resource allocation field and an aggregation transmission indication field; or the DCI format includes a second indication field, wherein the second indication field indicates the configuration value of the time-domain resources and the configuration value of the aggregation transmission indication.

[0035] Step 22: Transmit the DCI according to the DCI format.

[0036] In this embodiment, when the DCI format includes a time-domain resource allocation field and an aggregated transmission indication field, the time-domain resource allocation field is used to indicate: a first configuration value;

[0037] The first configuration value is one of the L1 configuration values, and the L1 configuration value is one of the L1 configurations of all or part of the time-domain resources;

[0038] The first configuration value includes: the time-domain symbol length occupied by a PDSCH and an offset value, wherein the offset value is the offset of the PDSCH relative to the start or end OFDM symbol of the control resource set; L1 is the configured value.

[0039] The time-domain resource allocation field indication uses a 2-bit indication, but other bit lengths can also be used.

[0040] In practical implementation, when the Time domain resource assignment is 2 bits, four configuration values ​​can be selected from Table 1 below for the UE. These four configuration values ​​can be predefined or configured by higher layers through higher-layer signaling. When the Time domain resource assignment uses a 2-bit indication, this 2-bit indication is used to select one configuration value for the UE:

[0041]

[0042]

[0043] Table 1

[0044] In the table, Length represents the time-domain symbol length occupied by the Physical Downlink Shared Channel (PDSCH); Offset is the symbol offset value relative to the CORESET (Control Resource Set), as shown in the example below. Figure 3 As shown.

[0045] In this embodiment,

[0046] When the DCI format includes a time-domain resource allocation field and an aggregated transmission indication field, the aggregated transmission indication field is used to indicate: a second configuration value;

[0047] The second configuration value is one of the L2 configuration values, and the L2 configuration value is one of the L2 values ​​in all or part of the configuration of the aggregated transmission indication field;

[0048] The second configuration value includes: an aggregation level and an interval, wherein the interval is the interval between aggregated transmissions; L2 is the configured value.

[0049] When the aggregated transmission indication field is indicated alone, it uses 2 bits, but other bit lengths can also be used for indication.

[0050] In practical implementation, the Aggregation transmission indication field configuration includes: the aggregation level (1, 2, 4, 8) and the interval between aggregated transmissions. Four configuration values ​​can be selected from the table below, with 2 bits indicating which value to assign to the UE. See Table 2:

[0051] AL Interval 1 The set of candidate values is {0, 1, 2} 2 The set of candidate values is {0, 1, 2} 4 The set of candidate values is {0, 1, 2} 8 The set of candidate values is {0, 1, 2}

[0052] Table 2

[0053] The intervals in the table represent the intervals between aggregated transfers, for example... Figure 4 and Figure 5 As shown,Figure 4 An example is shown with an aggregation level of 4 and an interval of 1 between aggregation transmissions, where the PDSCH is transmitted 4 times repeatedly with an interval of 1 symbol between each two PDSCH transmissions; Figure 5 An example is shown with an aggregation level of 4 and an interval of 0 between aggregation transmissions, where PDSCH is transmitted 4 times repeatedly with an interval of 0 symbols between each two PDSCH transmissions.

[0054] In this embodiment, when the DCI format includes a second indicator field, the configuration value of the time-domain resource indicated by the second indicator field and the configuration value of the aggregated transmission indicator include: a third configuration value;

[0055] The third configuration value is one of the L3 configuration values, and the L3 configuration value is one of the L3 configurations of all or part of the time domain resource domain and the aggregation transmission indication domain.

[0056] The third configuration value includes: the time-domain symbol length occupied by a physical downlink shared channel, an offset value, an aggregation level, and an interval between aggregated transmissions; L3 is the configured value.

[0057] In practice, a table can be configured for the UE by higher-layer signaling according to a predefined size. For example, RRC can configure 16 configuration values ​​for the UE, indicated by 4 bits, as shown in Table 3 below:

[0058]

[0059]

[0060] Table 3

[0061] like Figure 6 As shown, the downlink control information (DCI) transmission method of this invention, applied to a network device, includes:

[0062] Step 61: Determine the DCI format for transmitting downlink control information (DCI), wherein the DCI format includes a time-domain resource allocation field and an aggregation transmission indication field; or the DCI format includes a second indication field, wherein the second indication field indicates the configuration value of the time-domain resources and the configuration value of the aggregation transmission indication.

[0063] The DCI format further includes at least one of the following: DCI format identifier field, frequency domain resource allocation field, virtual resource block (VRB) to physical resource block (PRB) mapping field, modulation and coding scheme field, new data indicator field, redundancy version field, hybrid automatic repeat (HARQ) process number indicator field, downlink allocation index indicator field, physical uplink control channel (PUCCH) transmission power control (TPC) indicator field, PUCCH resource indicator field, physical downlink shared channel (PDSCH) to HARQ feedback time indicator field, and cyclic redundancy check field.

[0064] Step 62: Transmit the DCI according to the DCI format.

[0065] In practical implementation, when DCI uses C-RNTI scrambling, DCI can be used to schedule data in URLLC scenarios, where time-domain resource allocation and aggregated transmission are indicated respectively, and their field values ​​are as follows:

[0066] Identifier for DCI formats: 1 bit;

[0067] Frequency domain resource assignment: X bits;

[0068] Time domain resource assignment: 2 bits;

[0069] Aggregation transmission indication: 2 bits;

[0070] VRB-to-PRB mapping: 1 bit;

[0071] Modulation and coding scheme: 2 bits;

[0072] New data indicator: 1 bit;

[0073] Redundancy version: 1 bit;

[0074] HARQ process number: 2 bits;

[0075] Downlink Assignment Index: 0 bits;

[0076] TPC command for PUCCH (PUCCH transmission power control command): 2 bits;

[0077] PUCCH resource indicator: 2 bits;

[0078] PDSCH-to-HARQ feedback timing indicator: 1 bit;

[0079] CRC (Cyclic Redundancy Check);

[0080] Among them, the PDSCH-to-HARQ_feedback timing indicator is 1 bit. One state indicates that the PDSCH and HARQ-ack are transmitted in the same time slot, and the other state indicates that the HARQ-ack is transmitted in the subsequent time slot immediately adjacent to the time slot where the PDSCH is located.

[0081] When DCI uses C-RNTI scrambling, DCI can be used to schedule data in URLLC scenarios, where time-domain resource allocation and aggregated transmission are jointly indicated, and its field values ​​are as follows:

[0082] Identifier for DCI formats: 1 bit;

[0083] Frequency domain resource assignment: X bit;

[0084] Time domain resource assignment & aggregation transmission indication: 4 bits;

[0085] VRB-to-PRB mapping: 1 bit;

[0086] Modulation and coding scheme: 2 bits;

[0087] New data indicator: 1 bit;

[0088] Redundancy version: 1 bit;

[0089] HARQ process number: 2 bits;

[0090] Downlink Assignment Index: 0 bits;

[0091] TPC command for PUCCH (PUCCH transmission power control command): 2 bits;

[0092] PUCCH resource indicator: 2 bits;

[0093] PDSCH-to-HARQ feedback timing indicator: 1 bit;

[0094] CRC (Cyclic Redundancy Check);

[0095] The PDSCH-to-HARQ_feedback timing indicator is 1 bit; one state indicates that PDSCH and HARQ-ack are transmitted in the same slot, and the other state indicates that HARQ-ack is transmitted in a subsequent slot adjacent to the slot where PDSCH is located.

[0096] When DCI uses C-RNTI scrambling, DCI can be used to schedule downlink data in URLLC scenarios, where time-domain resource allocation and aggregated transmission are jointly indicated, and its field values ​​are as follows:

[0097] Identifier for DCI formats: 1 bit;

[0098] Frequency domain resource assignment: X bit;

[0099] Modulation and coding scheme: 2 bits;

[0100] When DCI uses C-RNTI scrambling, DCI can be used to schedule uplink data in URLLC scenarios, where time-domain resource allocation and aggregated transmission are jointly indicated, and its field values ​​are as follows:

[0101] Identifier for DCI formats: 1 bit;

[0102] Frequency domain resource assignment: X bit;

[0103] Modulation and coding scheme: 2 bits;

[0104] The method in the above embodiments of the present invention reduces the load of the DCI by adding at least one of a time-domain resource allocation field, a modulation order field, and an aggregation transmission indication field to the DCI, and by jointly indicating the time-domain resource allocation field and the modulation order field, or jointly indicating the time-domain resource allocation field and the aggregation transmission indication field. This reduces the PDCCH code rate and improves the PDCCH coverage under limited resource configuration. When the DCI is used to schedule PDSCH / PUSCH transmission in URLLC scenarios, it can improve the reliability of DCI transmission.

[0105] It should be noted that in the above embodiments of the present invention, the configuration values ​​in the table are only illustrative examples and do not include all configuration values, and the specific configuration values ​​are not limited to the values ​​listed in the table. In the above embodiments of the present invention, when indicating each field of DCI, the specific bit length used is not limited to the values ​​listed in the above embodiments, and other bit lengths or other indication methods can also be used for indication.

[0106] The above embodiments have described in detail the DCI transmission methods in different scenarios. The following embodiments will further describe the corresponding devices and equipment with reference to the accompanying drawings.

[0107] like Figure 7 As shown, the downlink control information (DCI) transmission device 70 of this embodiment can implement the details of the DCI transmission method described in all the above embodiments and achieve the same effect. The DCI transmission device 70 specifically includes the following functional modules:

[0108] Processing module 71 is used to determine the DCI format for transmitting downlink control information (DCI), the DCI format including: an aggregate transmission indication field or a second indication field, the second indication field indicating the configuration value of time domain resources and the configuration value of aggregate transmission indication;

[0109] In another specific embodiment of the present invention, the time-domain resource allocation domain is used to indicate: a first configuration value; the first configuration value is one of L1 configuration values, wherein the L1 configuration value is an L1 type of all or part of the time-domain resource configuration;

[0110] The first configuration value includes: the time-domain symbol length occupied by a PDSCH and an offset value, wherein the offset value is the offset of the PDSCH relative to the start OFDM symbol or end OFDM symbol of the control resource set; L1 is the configured value.

[0111] The aggregated transmission indication field is used to indicate: a second configuration value;

[0112] The second configuration value is one of the L2 configuration values, and the L2 configuration value is one of the L2 values ​​in all or part of the configuration of the aggregated transmission indication field;

[0113] The second configuration value includes: an aggregation level and an interval, wherein the interval is the interval between aggregated transmissions; L2 is the configured value.

[0114] Among them, the configuration values ​​of the time-domain resources indicated by the second indication field and the configuration values ​​of the aggregated transmission indication include: a third configuration value;

[0115] The third configuration value is one of the L3 configuration values, and the L3 configuration value is one of the L3 configurations of all or part of the time domain resource domain and the aggregation transmission indication domain.

[0116] The third configuration value includes: the time-domain symbol length occupied by a physical downlink shared channel, an offset value, an aggregation level, and an interval between aggregated transmissions; L3 is the configured value.

[0117] In this embodiment, the DCI further includes at least one of the following: DCI format identifier field, frequency domain resource allocation field, virtual resource block (VRB) to physical resource block (PRB) mapping field, modulation and coding scheme field, new data indicator field, redundancy version field, hybrid automatic repeat (HARQ) process number indicator field, downlink allocation index indicator field, physical uplink control channel (PUCCH) transmission power control (TPC) indicator field, PUCCH resource indicator field, physical downlink shared channel (PDSCH) to HARQ feedback time indicator field, and cyclic redundancy check field.

[0118] It is worth noting that the DCI transmission device in this embodiment of the invention adopts the same implementation means as the above method. All implementation methods in the above method are applicable to the embodiments of this device and can achieve the same technical effect.

[0119] To better achieve the above objectives, such as Figure 8 As shown, embodiments of the present invention also provide a network device 80, comprising:

[0120] Processor 81 is configured to determine a DCI format for transmitting downlink control information (DCI), the DCI format including: an aggregate transmission indication field or a second indication field, the second indication field indicating a configuration value of time-domain resources and a configuration value of the aggregate transmission indication;

[0121] A transceiver, used to transmit the DCI according to the DCI format, may specifically include an antenna and radio frequency devices, etc.

[0122] The network device may further include: an antenna 83, a radio frequency (RF) device 84, and a baseband device 85. The antenna 83 is connected to the RF device 84. In the uplink direction, the RF device 84 receives information through the antenna 83 and transmits the received information to the baseband device 85 for processing. In the downlink direction, the baseband device 85 processes the information to be transmitted and sends it to the RF device 84, which then processes the received information and transmits it through the antenna 83.

[0123] The aforementioned DCI transmission device can be located in the baseband device 85. The method executed by the network device in the above embodiments can be implemented in the baseband device 85, which includes a processor 81 and a memory 82.

[0124] The baseband device 85 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 8 As shown, one of the chips is, for example, a processor 81, which is connected to a memory 82 to call the program in the memory 82 and execute the operations shown in the above method embodiment.

[0125] The baseband device 85 may also include a network interface 86 for exchanging information with the radio frequency device 84, such as a common public radio interface (CPRI).

[0126] The term "processor" here can refer to a single processor or a collective term for multiple processing elements. For example, the processor can be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods executed by the network devices described above, such as one or more microprocessors (DSPs), or one or more field-programmable gate arrays (FPGAs). Similarly, the term "storage element" can refer to a single memory or a collective term for multiple storage elements.

[0127] The memory 82 can be volatile memory or non-volatile memory, or it can include both. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 82 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0128] Embodiments of the present invention also provide a network device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps in the DCI transmission method described above.

[0129] The network device in this embodiment of the invention further includes: a computer program stored in a memory and executable on a processor, wherein the processor invokes the computer program in the memory to execute... Figure 7 The methods executed by each module are shown.

[0130] Specifically, when the computer program is invoked by the processor 81, it can be used to execute the steps of the DCI transmission method as described above.

[0131] The network equipment can be a base station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a base station in future 5G networks, etc., and is not limited here.

[0132] When DCI is used to schedule PDSCH / PUSCH transmission in URLLC scenarios, it can improve the reliability of DCI transmission.

[0133] It should be noted that the division of the various modules in the above network devices and terminals is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software through processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, a specific module can be a separate processing element, or it can be integrated into a chip in the aforementioned device. Alternatively, it can be stored as program code in the memory of the aforementioned device, and its function can be called and executed by a processing element of the device. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0134] For example, these modules can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), one or more digital signal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to form a system-on-a-chip (SOC).

[0135] The computer-readable storage medium mentioned above includes, for example, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0136] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0137] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0138] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0139] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0140] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0141] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0142] Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of the present invention. Moreover, the steps performing the above-described series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof. This is something that those skilled in the art can achieve by using their basic programming skills after reading the description of the present invention.

[0143] Therefore, the object of the present invention can also be achieved by running a program or a set of programs on any computing device. The computing device can be a known general-purpose device. Therefore, the object of the present invention can also be achieved simply by providing a program product containing program code implementing the method or apparatus. That is, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent to the present invention. Furthermore, the steps performing the above series of processes can naturally be performed in the order described, but are not necessarily required to be performed in chronological order. Some steps can be performed in parallel or independently of each other.

[0144] The above describes the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also within the scope of protection of the present invention.

Claims

1. A method for transmitting downlink control information (DCI), applied to network equipment, characterized in that, include: Determine the DCI format for transmitting downlink control information (DCI), the DCI format including: an aggregate transmission indication field or a second indication field, the second indication field indicating the configuration value of time domain resources and the configuration value of aggregate transmission indication; The DCI is transmitted according to the DCI format; The aggregated transmission indication field is used to indicate: the second configuration value; The second configuration value is one of the L2 configuration values, and the L2 configuration value is one of the L2 values ​​in all or part of the configuration of the aggregated transmission indication field; The second configuration value includes: an aggregation level and an interval, wherein the aggregation level is the number of retransmissions of the Physical Downlink Shared Channel (PDSCH), and the interval is the interval between the retransmissions of the PDSCH; L2 is the configured value.

2. The DCI transmission method according to claim 1, characterized in that, The configuration values ​​of the time-domain resources indicated by the second indication field and the configuration values ​​of the aggregated transmission indication include: a third configuration value; The third configuration value is one of the L3 configuration values, and the L3 configuration value is one of the L3 configurations of all or part of the time domain resource domain and the aggregation transmission indication domain. The third configuration value includes: the time-domain symbol length occupied by a physical downlink shared channel, an offset value, an aggregation level, and an interval between aggregated transmissions; L3 is the configured value.

3. The DCI transmission method according to any one of claims 1-2, characterized in that, The DCI further includes at least one of the following: DCI format identifier field, frequency domain resource allocation field, virtual resource block (VRB) to physical resource block (PRB) mapping field, modulation and coding scheme field, new data indicator field, redundancy version field, hybrid automatic repeat (HARQ) process number indicator field, downlink allocation index indicator field, physical uplink control channel (PUCCH) transmission power control (TPC) indicator field, PUCCH resource indicator field, physical downlink shared channel (PDSCH) to HARQ feedback time indicator field, and cyclic redundancy check field.

4. A transmission device for downlink control information (DCI), applied to network equipment, characterized in that, include: The processing module is used to determine the DCI format for transmitting downlink control information (DCI), the DCI format including: an aggregate transmission indication field or a second indication field, the second indication field indicating the configuration value of time domain resources and the configuration value of aggregate transmission indication; A transceiver module is used to transmit the DCI according to the DCI format; The aggregated transmission indication field is used to indicate: the second configuration value; The second configuration value is one of the L2 configuration values, and the L2 configuration value is one of the L2 values ​​in all or part of the configuration of the aggregated transmission indication field; The second configuration value includes: an aggregation level and an interval, wherein the aggregation level is the number of retransmissions of the Physical Downlink Shared Channel (PDSCH), and the interval is the interval between the retransmissions of the PDSCH; L2 is the configured value.

5. The DCI transmission device according to claim 4, characterized in that, The configuration values ​​of the time-domain resources indicated by the second indication field and the configuration values ​​of the aggregated transmission indication include: a third configuration value; The third configuration value is one of the L3 configuration values, and the L3 configuration value is one of the L3 configurations of all or part of the time domain resource domain and the aggregation transmission indication domain. The third configuration value includes: the time-domain symbol length occupied by a physical downlink shared channel, an offset value, an aggregation level, and an interval between aggregated transmissions; L3 is the configured value.

6. The DCI transmission apparatus according to any one of claims 4-5, characterized in that, The DCI further includes at least one of the following: DCI format identifier field, frequency domain resource allocation field, virtual resource block (VRB) to physical resource block (PRB) mapping field, modulation and coding scheme field, new data indicator field, redundancy version field, hybrid automatic repeat (HARQ) process number indicator field, downlink allocation index indicator field, physical uplink control channel (PUCCH) transmission power control (TPC) indicator field, PUCCH resource indicator field, physical downlink shared channel (PDSCH) to HARQ feedback time indicator field, and cyclic redundancy check field.

7. A network device, characterized in that, include: A processor is configured to determine a DCI format for transmitting downlink control information (DCI), the DCI format including: an aggregate transmission indication field or a second indication field, the second indication field indicating a configuration value of time-domain resources and a configuration value of the aggregate transmission indication; A transceiver for transmitting the DCI according to the DCI format; The aggregated transmission indication field is used to indicate: the second configuration value; The second configuration value is one of the L2 configuration values, and the L2 configuration value is one of the L2 values ​​in all or part of the configuration of the aggregated transmission indication field; The second configuration value includes: an aggregation level and an interval, wherein the aggregation level is the number of retransmissions of the Physical Downlink Shared Channel (PDSCH), and the interval is the interval between the retransmissions of the PDSCH; L2 is the configured value.

8. A network device, characterized in that, The network device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the downlink control information (DCI) transmission method as described in any one of claims 1 to 3.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the downlink control information (DCI) transmission method as described in any one of claims 1 to 3.

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